Cutting assembly for a lawnmower

Abstract

The utility model belongs to the field of mower, especially involve a cutting assembly of flat knife mower, cutting assembly for cutting assembly is suitable for flat knife mower, including first blade and second blade, the center of first blade and second blade is equipped with connecting through -hole, first blade and second blade stack up and 90 degrees arrangement, still include a anti -rotation board, the center of anti -rotation board also is equipped with connecting through -hole, first blade, second blade and anti -rotation board coaxial arrangement, the side of anti -rotation board is equipped with clamping block symmetry, when anti -rotation board installs in the top of first blade, the clamping block of anti -rotation board is close in the both sides of second blade, when anti -rotation board installs in the below of second blade, the clamping block of anti -rotation board is close in the both sides of first blade, the utility model designs a kind of assembled, grass effect is good and the cutting assembly for mower with efficiency significantly improved.

Description

Technical Field

[0001] This utility model belongs to the field of lawnmowers, and specifically relates to a cutting component for a flat blade lawnmower. Background Technology

[0002] Currently, most flat blade lawn mowers use a single blade or a single-row double blade design, which can easily lead to problems such as poor grass-cutting effect and low operating efficiency.

[0003] Alternatively, existing technologies have developed multi-head cutting tools. Multi-head cutting tools generally fall into two categories. The first category is integral cutting tools, where the cutting tool is a single piece with multiple cutting heads machined from its edge. In this case, the material requirements are high, and there is a lot of waste, resulting in higher cutting tool costs. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention designs an assembled cutting component for lawnmowers that provides excellent grass-chopping effect and significantly improves efficiency.

[0005] The technical solution of this utility model is as follows:

[0006] A cutting assembly for a lawnmower, suitable for flat blade lawnmowers, is characterized by comprising a first blade and a second blade, with a connecting through hole at the center of the first and second blades, the first and second blades being stacked vertically at a 90-degree angle, and an anti-rotation plate, also with a connecting through hole at the center of the anti-rotation plate. The first blade, the second blade, and the anti-rotation plate are coaxially arranged, and clamping blocks are symmetrically provided on the sides of the anti-rotation plate. When the anti-rotation plate is installed above the first blade, the clamping blocks of the anti-rotation plate are tightly attached to both sides of the second blade; when the anti-rotation plate is installed below the second blade, the clamping blocks of the anti-rotation plate are tightly attached to both sides of the first blade.

[0007] Furthermore, the first blade has a convex plane formed by bending upwards in the middle, and the second blade is located below the convex plane.

[0008] Furthermore, the length of the first blade is greater than the length of the second blade.

[0009] In summary, this utility model has the following beneficial effects:

[0010] 1. This utility model designs a cutting component suitable for flat blade lawn mowers. It adopts a double-blade design, which reduces the manufacturing cost of a single blade. Furthermore, only a single blade needs to be replaced during subsequent maintenance, thus reducing the maintenance cost of the equipment.

[0011] 2. This utility model adopts a design of first blade and second blade, which has a larger coverage area, effectively removes residual grass stems, and the cross-shaped layout forms a continuous cutting trajectory, which improves efficiency compared with traditional single blade. Attached Figure Description

[0012] Figure 1 This is an exploded view of the cutting component of this utility model;

[0013] Figure 2 This is a three-dimensional schematic diagram of the cutting component of this utility model;

[0014] Figure 3 This is a side view of the cutting component of this utility model;

[0015] In the diagram, 1 represents the first blade, and 10 represents the convex plane.

[0016] 2 is the second blade.

[0017] 3 is a connecting through hole.

[0018] 4 is the anti-rotation plate, 40 is the clamping block, 5 is the cutter shaft, 6 is the flat washer, and 7 is the anti-loosening nut. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0020] It should be noted that when a component is referred to as being "set on" or "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is referred to as being "fixed to" another component, or "fixedly connected" to another component, the fixing method can be detachable or non-detachable. When a component is considered to be "connected" or "rotatably connected" to another component, it can be directly connected to the other component or there may be an intermediate component. The terms "vertical," "horizontal," "left," "right," "upper," "lower," and similar expressions used are for illustrative purposes only and do not represent the only possible implementation.

[0021] 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 description of this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] In this invention, terms such as "first," "second," and "third" are used not to represent specific quantities or orders, but merely to distinguish names.

[0023] This utility model relates to a cutting component for lawnmowers, and particularly to a cutting component suitable for flat blade lawnmowers, including tractor-mounted flat blade lawnmowers and hydraulic flat blade lawnmowers for construction machinery.

[0024] See Figures 1 to 3 As shown, a cutting assembly for a lawnmower includes a first blade 1 and a second blade 2. A connecting through hole 3 is provided at the center of the first blade 1 and the second blade 2. The first blade 1 and the second blade 2 are stacked vertically and arranged at a 90-degree angle. It also includes an anti-rotation plate 4, which also has a connecting through hole 3 at its center. The first blade 1, the second blade 2, and the anti-rotation plate 4 are coaxially arranged. The sides of the anti-rotation plate 4 are symmetrically provided with clamping blocks 40. When the anti-rotation plate 4 is installed above the first blade 1, the clamping blocks 40 of the anti-rotation plate 4 are tightly attached to both sides of the second blade 2. When the anti-rotation plate 4 is installed below the second blade 2, the clamping blocks 40 of the anti-rotation plate 4 are tightly attached to both sides of the first blade 1.

[0025] In the above technical solution, a double-blade design is adopted, with the first and second blades arranged at a 90-degree angle. In this embodiment, the second blade is located below the first blade. An anti-rotation plate is added to maintain the relative position of the first and second blades, so that the first and second blades form a stable cross-shaped layout. Because the cross-shaped layout forms a continuous cutting trajectory, the cutting efficiency is significantly improved compared with the single-blade transmission. In addition, the double-blade design of this utility model reduces the manufacturing cost of a single blade, and only a single blade needs to be replaced in subsequent maintenance, thus reducing the maintenance cost of the equipment.

[0026] Furthermore, the first blade 1 has a convex plane 10 formed by bending upward in the middle, and the second blade 2 is located below the convex plane. The convex plane is higher than the blade body of the first blade located on both sides, and a clearance space is formed below the convex plane. When the second blade is installed, the cutting edges of the first blade and the second blade are in the same plane, which has a better cleaning effect.

[0027] Furthermore, the length of the first blade 1 is greater than the length of the second blade 2. Due to the presence of the aforementioned convex plane, there is an uncovered area in the first blade. The second blade can cover the uncovered area of ​​the first blade, effectively removing residual grass stems.

[0028] This embodiment is described with the anti-rotation plate located below the second blade.

[0029] The first blade, the second blade, and the anti-rotation plate are sequentially fitted onto the cutter shaft through the connecting through hole. A flat washer is provided below the anti-rotation plate and it is secured with a lock nut, so that the first blade, the second blade, and the anti-rotation plate are connected to the cutter shaft. The same side plane of the two clamping blocks of the anti-rotation plate is in close contact with one side of the second blade. Then, the first blade is located between the two clamping blocks, and the two sides of the first blade are in close contact with the opposite surfaces of the two clamping blocks for limiting, so that there is no wobble between the first blade, the second blade, and the anti-rotation plate, reducing the generation of noise.

[0030] In summary, this utility model has the following beneficial effects:

[0031] 1. This utility model designs a cutting component suitable for flat blade lawn mowers. It adopts a double-blade design, which reduces the manufacturing cost of a single blade. Furthermore, only a single blade needs to be replaced during subsequent maintenance, thus reducing the maintenance cost of the equipment.

[0032] 2. This utility model adopts a design of first blade and second blade, which has a larger coverage area, effectively removes residual grass stems, and the cross-shaped layout forms a continuous cutting trajectory, which improves efficiency compared with traditional single blade.

[0033] Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

Claims

1. A cutting assembly for a lawnmower, suitable for a flat blade lawnmower, characterized in that: The device includes a first blade and a second blade, with a connecting through hole at the center of the first and second blades. The first and second blades are stacked vertically and arranged at a 90-degree angle. It also includes an anti-rotation plate, which also has a connecting through hole at its center. The first blade, the second blade, and the anti-rotation plate are coaxially arranged. The anti-rotation plate has symmetrical clamping blocks on its sides. When the anti-rotation plate is installed above the first blade, the clamping blocks of the anti-rotation plate are in close contact with both sides of the second blade. When the anti-rotation plate is installed below the second blade, the clamping blocks of the anti-rotation plate are in close contact with both sides of the first blade.

2. The cutting assembly for a lawnmower according to claim 1, characterized in that: The first blade has a convex plane formed by bending upward in the middle, and the second blade is located below the convex plane.

3. The cutting assembly for a lawnmower according to claim 1, characterized in that: The length of the first blade is greater than the length of the second blade.

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