Improved mechanism of brush cutter head protection disc

Abstract

The utility model relates to an improved mechanism for a protective disc of a machine head of a brush cutter, which is characterized in that the outer edge of the protective disc is provided with a plurality of radiation strip bodies extending from the periphery of the protective disc, and a rotary cutting area which is bent and extends towards the outer side of a blade and is used for entering of an operation object and rotary cutting of the blade is arranged on the outer edge of the protective disc. And the included angle between the adjacent radiation strips corresponding to the rotary cutting area forms a guide limiting opening. When the rotary cutting device is used, the working efficiency that weeds, shrubs and branches and branches touched by the head of the brush cutter enter a rotary cutting area in a limited and guided mode at the limiting opening to be subjected to rotary cutting can be improved, the labor intensity during manual operation is reduced, and the working time during manual operation is shortened.

Description

Technical Field

[0001] This utility model relates to a head protection disc for garden machinery, specifically an improved mechanism for a brush cutter head protection disc. Background Technology

[0002] The applicant had previously filed a Chinese patent application with publication number CN118176916A, entitled "Brush Cutter Head". This head is equipped with a protective disc, the outer edge of which has radial strips. The outer ends of these radial strips curve outwards towards the blade, forming a protective area outside the blade's cutting zone. The gaps between the outer ends of the radial strips within the protective area allow the workpiece to enter the blade's cutting zone.

[0003] When the brush cutter head is in use, weeds, shrubs and branches enter the blade cutting area and are cut by the blade. The structure is ingenious. In order to further improve the efficiency of weeds, shrubs and branches entering the cutting area, the applicant has made the following addition to the technical solution. Summary of the Invention

[0004] The purpose of this invention is to improve the efficiency of weeds, shrubs and branches entering the rotary cutting area, and to provide an improved mechanism for the brush cutter head guard plate.

[0005] The technical solution to the problem that this utility model aims to solve is as follows:

[0006] An improved mechanism for the brush cutter head protective disc, wherein the outer edge of the protective disc is formed by several radial strips extending from the periphery of the protective disc, which bend outwards to the outside of the blade to create a cutting area for the workpiece to enter and be cut by the blade, characterized in that: the surface of the radial strips extending outwards to the outside of the blade protrudes outwards, so that the included angle between the corresponding cutting areas of adjacent radial strips forms a guide limiting opening.

[0007] Preferably, the surface of the radiating strip protrudes outward to the middle part of the surface of the strip in this region, and the protruding surface is an arc surface.

[0008] Preferably, the radiating strip protrudes outward from the middle part of the strip surface in this region, and the two sides of the protruding surface are set at an angle.

[0009] Preferably, the projections of the ends of adjacent radial strips in the vertical direction of the rotary cutting area are close to each other.

[0010] The beneficial effects of this utility model are as follows:

[0011] This invention features outwardly protruding radial strips, creating a guide and limiting opening at the angle between the corresponding cutting areas of adjacent radial strips. This improves the efficiency of cutting weeds, shrubs, and tree branches that are guided into the cutting area by the limiting opening, thus reducing the labor intensity and operation time of manual operation. Attached Figure Description

[0012] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model installed on the machine head;

[0014] Figure 2 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0015] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are provided solely for the purpose of clearly illustrating the technical solution of the present invention, offering numerous specific details to provide a more thorough understanding. However, those skilled in the art will recognize that the present invention can be implemented without one or more of these details. In these examples, to avoid confusion with the present invention, some technical features known in the art have not been described.

[0016] It should be understood that the present invention can be implemented in different forms and should not be construed as being limited to the embodiments set forth herein. Therefore, these embodiments are merely examples and should not be used to limit the scope of protection of the present invention.

[0017] Additionally, it should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which this utility model pertains. The present utility model will now be described in further detail with reference to the accompanying drawings.

[0018] See Figure 1 , Figure 2 The improved mechanism of the brush cutter head protective disc includes a protective disc 1 with several radial strips 2 extending from the periphery of the protective disc 1, which bend outwards towards the blade 3 to form a cutting area 4 for the work object to enter and be cut by the blade 3. The surface of the radial strips 2 extending outwards towards the blade 3 protrudes outwards, so that the included angle between adjacent radial strips 2 and the corresponding cutting areas 4 forms a guide limiting port 5.

[0019] When the brush cutter is in operation, the protective disc prevents the blade 3 from directly contacting the work object. Furthermore, the radial strips 2 of the protective disc isolate the blade 3 from objects outside the work object from entering the rotary cutting area 4, thus preventing damage to the brush cutter head or other accidents, including but not limited to the blade cutting off objects that have not been isolated and screened out by the rotary cutting area 4 of the protective disc, or cutting people or animals.

[0020] Furthermore, as an improvement to this utility model, the surface of the radiating strip 2 protrudes outward to the middle part of the surface of the strip in this region, and the protruding surface is an arc surface.

[0021] The central part of the strip surface protrudes into an arc, which also increases the overall strength of the protective disk, especially the mechanical impact strength of the side of the protective disk where radiation strip 2 is located.

[0022] Furthermore, as an improvement to this utility model, the surface of the radiating strip 2 protrudes outward to the middle part of the surface of the strip in this region, and the two sides of the protruding surface are set at an angle.

[0023] In this embodiment, the two sides of the protruding surface are set at an angle, making the cross section of the radial strip 2 triangular, which makes the structure of the radial strip 2 more stable and also increases the overall strength of the protective disk, especially the mechanical impact strength of the side of the protective disk where the radial strip 2 is located.

[0024] Furthermore, as an improvement to this utility model, the projections of the ends of adjacent radial strips 2 in the vertical direction of the rotary cutting area are such that they face each other and approach each other.

[0025] In this embodiment, the projection is shown to be moving closer to each other, and the closer the ends tend to move closer together. The ends have a certain narrowing 6. When the work object enters and is cut, it is prevented from being ejected from the cutting and slicing area 4 when it comes into contact with the blade due to its toughness.

[0026] Finally: The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it; although the 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 or all of the technical features; these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. An improved mechanism for a brush cutter head protective disc, wherein the outer edge of the protective disc consists of several radial strips extending from the periphery of the protective disc, which curve outwards towards the blade to create a cutting area for the workpiece to enter and for the blade to cut, characterized in that: The surface of the radial strips that bend outwards from the blade protrudes outwards, so that the included angle between the corresponding cutting areas of adjacent radial strips forms a guide limiting opening.

2. The improved brush cutter head protection disc mechanism according to claim 1, characterized in that: The surface of the radiating strip protrudes outward from the middle part of the strip surface in this region, and the protruding surface is an arc surface.

3. The improved brush cutter head protection disc mechanism according to claim 1, characterized in that: The surface of the radiating strip protrudes outward from the middle part of the strip surface in this region, and the two sides of the protruding surface are set at an angle.

4. The improved brush cutter head protection disc mechanism according to claim 1, characterized in that: The projections of the ends of adjacent radial strips in the vertical direction of the rotary cutting area appear to be close to each other.

Images