An adjustable lawnmower cutter disc structure

Abstract

This utility model provides an adjustable lawnmower cutter disc structure, relating to the field of lawnmower technology. The adjustable lawnmower cutter disc structure includes a mounting frame, inside which a dual-head motor is installed. Motor drive shafts are mounted at both ends of the dual-head motor. A transmission gear is mounted at one end of each motor drive shaft, and a driven gear meshes with the bottom end of the transmission gear. A rotating rod is mounted at the bottom end of the rotating rod, and a first cutter disc is positioned at the bottom end of the rotating rod. A second cutter disc is positioned to one side of the first cutter disc. A driving hydraulic cylinder is installed inside the rotating rod, and a hydraulic cylinder drive shaft is mounted at the bottom end of the driving hydraulic cylinder. A third and fourth cutter disc are mounted at the bottom end of the mounting frame away from the first cutter disc. Four sets of casters are mounted at the bottom end of the mounting frame, and a handle is mounted at one end of the mounting frame. A grass-guarding plate is mounted at the end of the mounting frame near the handle. This utility model, by setting multiple independently adjustable cutter discs, increases the usable cutting area and improves cutting efficiency.

Description

Technical Field

[0001] This utility model relates to the field of lawnmower technology, and in particular to an adjustable lawnmower cutting disc structure. Background Technology

[0002] As the name suggests, lawnmowers are used in gardens to trim lawns. The most common type is the push-type lawnmower, which uses a mechanical structure to drive a bladed head to rotate and trim the grass in the area it passes over.

[0003] Existing adjustable lawnmower cutting discs are generally adjusted for mowing operations using a single set of cutting discs. This results in low efficiency, easy omissions during mowing, low cut completeness, and inconvenience for users. Utility Model Content

[0004] This utility model provides an adjustable lawnmower cutting disc structure to solve the problems of low efficiency, easy omissions, and low cut completeness of grass cutting in some adjustable lawnmower cutting discs that are generally adjusted by a single set of cutting discs during use.

[0005] This utility model provides an adjustable lawnmower cutter disc structure, including a mounting frame. A dual-head motor is installed inside the mounting frame. Motor drive shafts are installed at both ends of the dual-head motor. A transmission gear is installed at one end of the motor drive shaft. A driven gear meshes with the bottom end of the transmission gear. A rotating rod is installed at the bottom end of the driven gear. A first cutter disc is provided at the bottom end of the rotating rod. A second cutter disc is provided on one side of the first cutter disc. A driving hydraulic cylinder is installed inside the rotating rod. A hydraulic cylinder drive shaft is installed at the bottom end of the driving hydraulic cylinder. A third and fourth cutter discs are installed at the bottom end of the mounting frame away from the first cutter disc.

[0006] Preferably, four sets of casters are installed at the bottom of the mounting frame, and a handrail is installed at one end of the mounting frame.

[0007] Preferably, a grass guard is installed at one end of the mounting bracket near the handrail.

[0008] Preferably, a dustproof plate is installed at the top of the mounting bracket.

[0009] Preferably, the top of the mounting frame has a placement compartment.

[0010] Preferably, a limiting washer is installed at the top of the rotating rod.

[0011] Preferably, a mowing blade is installed at the bottom of the first cutting disc, and a mounting bolt is fixed at one end of the mowing blade. Beneficial effects

[0012] Considering that existing adjustable lawnmower cutting discs are generally adjusted and operated by a single set of cutting discs during use, the efficiency is low, and it is easy to miss some grass during the cutting process, resulting in low completeness of the cutting.

[0013] By holding the handle and using the four sets of casters, the mounting frame is pushed to the appropriate mowing point. Then, by activating the dual-head motors installed inside both ends of the mounting frame, the motor drive shaft rotates the transmission gears. The rotation of the transmission gears drives the driven gears at the bottom to rotate synchronously, thereby rotating the rotating rod, the first cutter disc, and the second cutter disc. The rotation of the first and second cutter discs drives the mowing blades installed at the bottom to rotate, thus performing the mowing operation. The synchronous operation of the first and second cutter discs increases the lateral area of ​​the mowing, thereby... This design increases mowing efficiency. Furthermore, when adjusting the mowing height of the first and second cutting discs, the drive hydraulic cylinder inside the rotating rod can be activated, causing the hydraulic cylinder drive shaft to move the first and second cutting discs up and down. The first and second cutting discs can be independently adjusted in height, facilitating independent adjustment when the terrain on both sides of the mowing area is uneven. This increases the mowing adjustability of the first and second cutting discs. Additionally, the third and fourth cutting discs can perform secondary cutting of grass not fully cut by the first and second cutting discs, increasing the completeness of the mowing.

[0014] The above description is merely an overview of the technical solutions of the present utility model embodiments. In order to better understand the technical means of the present utility model embodiments and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the present utility model embodiments more obvious and understandable, specific embodiments of the present utility model are described below. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of an adjustable lawnmower cutting disc according to the present invention.

[0017] Figure 2 This is a bottom view schematic diagram of an adjustable lawnmower cutting disc structure according to the present invention.

[0018] Figure 3 This is a schematic diagram of a dual-head motor structure for an adjustable lawnmower cutter disc according to this utility model.

[0019] Figure 4 This is a schematic diagram of the internal structure of the rotating rod of an adjustable lawnmower cutter disc structure according to this utility model.

[0020] Figure 5 This is a schematic diagram of the blade mounting structure of an adjustable lawnmower cutter disc according to the present invention. Explanation of reference numerals in the attached figures: 1. Mounting frame; 2. Casters; 3. Handrail; 4. Grass guard; 5. Dustproof plate; 6. Storage compartment; 7. Dual-head motor; 8. Motor drive shaft; 9. Transmission gear; 10. Driven gear; 11. Limiting washer; 12. Rotating rod; 13. First cutter disc; 14. Second cutter disc; 15. Drive hydraulic cylinder; 16. Hydraulic cylinder drive shaft; 17. Grass cutting blade; 18. Mounting bolt; 19. Third cutter disc; 20. Fourth cutter disc. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this invention are intended to cover non-exclusive inclusion.

[0023] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this utility model. For example, in the description of this utility model, terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection. A physical connection can be a fixed connection, such as a connection secured by fasteners, such as screws, bolts, or other fasteners; a physical connection can also be a detachable connection, such as a snap-fit ​​or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0027] This utility model provides, for example Figure 1-5 The adjustable lawnmower cutter disc structure shown includes a mounting frame 1. A dual-head motor 7 is installed inside the mounting frame 1. Motor drive shafts 8 are installed at both ends of the dual-head motor 7. A transmission gear 9 is installed at one end of the motor drive shaft 8. A driven gear 10 meshes with the bottom end of the transmission gear 9. A rotating rod 12 is installed at the bottom end of the driven gear 10. A first cutter disc 13 is provided at the bottom end of the rotating rod 12. A second cutter disc 14 is provided on one side of the first cutter disc 13. A drive hydraulic cylinder 15 is installed inside the rotating rod 12. A hydraulic cylinder drive shaft 16 is installed at the bottom end of the drive hydraulic cylinder 15. A third cutter disc 19 and a fourth cutter disc 20 are installed at the bottom end of the mounting frame 1 away from the first cutter disc 13.

[0028] The mounting frame 1 is pushed to a suitable mowing point by holding the handle 3 and using the four sets of moving wheels 2. Then, the dual-head motors 7 installed inside both ends of the mounting frame 1 are activated, causing the motor drive shaft 8 to drive the transmission gear 9 to rotate. The rotation of the transmission gear 9 drives the driven gear 10 meshing at the bottom to rotate synchronously, thereby driving the rotating rod 12, the first cutter disc 13, and the second cutter disc 14 to rotate. The rotation of the first and second cutter discs 13 and 14 drives the mowing blades 17 installed at the bottom to rotate, performing the mowing operation. The synchronous operation of the first and second cutter discs 13 and 14 increases the lateral area of ​​the mowing. This increases mowing efficiency. When it is necessary to adjust the mowing height of the first and second cutting discs 13 and 14, the drive hydraulic cylinder 15 inside the rotating rod 12 can be opened, causing the hydraulic cylinder drive shaft 16 to move the first and second cutting discs 13 and 14 up and down for adjustment. The first and second cutting discs 13 and 14 can be independently adjusted in height, which is convenient for independent adjustment when the terrain on both sides of the mowing is uneven. This increases the mowing adjustability of the first and second cutting discs 13 and 14. At the same time, the third and fourth cutting discs 19 and 20 can perform secondary cutting on the grass that is not completely cut by the first and second cutting discs 13 and 14, increasing the completeness of the mowing.

[0029] Four sets of casters 2 are installed at the bottom of the mounting frame 1, and a handrail 3 is installed at one end of the mounting frame 1.

[0030] Among them, by holding the handle 3, the mounting frame 1 is pushed to the appropriate lawn mowing point by the action of the four sets of moving wheels 2.

[0031] A grass guard plate 4 is installed on one end of the mounting bracket 1 near the handrail 3.

[0032] During the mowing process, the grass baffle 4 blocks the grass that splashes during the mowing process, preventing it from splashing onto the user's legs.

[0033] A dustproof plate 5 is installed on the top of the mounting bracket 1.

[0034] Among them, two sets of dustproof plates 5 protect the dual-head motors 7 installed inside both ends of the mounting frame 1, so as to prevent dust from entering the dual-head motors 7 installed inside both ends of the mounting frame 1 during the grass cutting process.

[0035] The top of the mounting bracket 1 has a placement compartment 6.

[0036] The installation frame 1 has a placement compartment 6 at the top, which facilitates the use of placement tools or the collection and transportation of cut grass.

[0037] A limit shim 11 is installed at the top of the rotating rod 12.

[0038] When the transmission gear 9 drives the driven gear 10 and the rotating rod 12 to rotate, the limiting shim 11 can limit the rotation of the driven gear 10 and the rotating rod 12, thereby increasing the rotational stability of the driven gear 10 and the rotating rod 12.

[0039] The bottom of the first cutter disc 13 is equipped with a grass-cutting blade 17, and one end of the grass-cutting blade 17 is fixed with a mounting bolt 18.

[0040] The grass-cutting blade 17 is fixedly installed at the bottom of the first cutting disc 13 by mounting bolts 18 for grass cutting operations. Working principle: When using this adjustable lawnmower cutting disc structure, by holding the handle 3 and using the four sets of moving wheels 2, the mounting frame 1 is pushed to the appropriate mowing point. Then, by turning on the dual-head motor 7 installed inside both ends of the mounting frame 1, the motor drive shaft 8 drives the transmission gear 9 to rotate. The rotation of the transmission gear 9 drives the driven gear 10 meshing at the bottom to rotate synchronously, thereby driving the rotating rod 12, the first cutting disc 13 and the second cutting disc 14 to rotate. The rotation of the first cutting disc 13 and the second cutting disc 14 drives the mowing blade 17 installed at the bottom to rotate, and the mowing blade 17 performs the mowing operation.

[0041] The first and second cutting discs 13 and 14 work synchronously, increasing the lateral area of ​​the grass cutting and thus increasing the cutting efficiency. When it is necessary to adjust the cutting height of the first and second cutting discs 13 and 14, the drive hydraulic cylinder 15 inside the rotating rod 12 can be opened, causing the hydraulic cylinder drive shaft 16 to drive the first and second cutting discs 13 and 14 to move up and down for adjustment. The first and second cutting discs 13 and 14 can be independently adjusted in height, which is convenient for independent adjustment when the terrain on both sides of the grass is uneven, increasing the grass cutting adjustability of the first and second cutting discs 13 and 14. At the same time, the third and fourth cutting discs 19 and 20 can perform secondary cutting on the grass that is not completely cut by the first and second cutting discs 13 and 14, increasing the completeness of the grass cutting.

[0042] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An adjustable lawnmower cutter disc structure, comprising a mounting frame (1), characterized in that: The mounting frame (1) is equipped with a dual-head motor (7), and motor drive shafts (8) are installed at both ends of the dual-head motor (7). A transmission gear (9) is installed at one end of the motor drive shaft (8). A driven gear (10) meshes with the bottom end of the transmission gear (9). A rotating rod (12) is installed at the bottom end of the driven gear (10). A first cutting disc (13) is provided at the bottom end of the rotating rod (12). A second cutting disc (14) is provided on one side of the first cutting disc (13). A driving hydraulic cylinder (15) is installed inside the rotating rod (12). A hydraulic cylinder drive shaft (16) is installed at the bottom end of the driving hydraulic cylinder (15). A third cutting disc (19) and a fourth cutting disc (20) are installed at the bottom end of the mounting frame (1) away from the first cutting disc (13).

2. An adjustable mower deck structure according to claim 1, wherein: The mounting frame (1) has four sets of casters (2) installed at its bottom end, and a handrail (3) is installed at one end of the mounting frame (1).

3. An adjustable mower deck structure according to claim 2, wherein: A grass-blocking plate (4) is installed on one end of the mounting bracket (1) near the handrail (3).

4. An adjustable mower deck structure according to claim 1, wherein: A dustproof plate (5) is installed on the top of the mounting bracket (1).

5. An adjustable mower deck structure according to claim 1 wherein: The mounting frame (1) has a placement compartment (6) at its top.

6. An adjustable mower deck structure according to claim 1 wherein: A limiting washer (11) is installed at the top of the rotating rod (12).

7. An adjustable mower deck structure according to claim 1 wherein: The bottom end of the first cutting disc (13) is equipped with a grass cutting blade (17), and one end of the grass cutting blade (17) is fixed with a mounting bolt (18).

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