阅读说明：本技术 一种割草机刀盘 (Cutter head of mower ) 是由 廖瑞忠 于 2021-08-25 设计创作，主要内容包括：本发明涉及割草机技术领域,公开了一种割草机刀盘,包括盘体和多个刀片组件；所述盘体内设置有多个容纳刀片组件的容置槽；所述刀片组件包括两块护板和夹在中间的刀片；所述刀片和护板通过枢接件枢接于盘体上；所述盘体转动时,通过离心力将刀片组件甩出；所述刀片甩出盘体的部分单侧开刃；所述护板靠近刀片开刃侧设有缺口。本发明的刀盘转动时利用离心力将刀片甩出,刀片碰到硬物可自动回弹；并在刀片上下侧设置护板,防止刀片碰撞的碎片飞出,提高安全性。(The invention relates to the technical field of mowers and discloses a mower cutter head which comprises a disc body and a plurality of blade assemblies; a plurality of accommodating grooves for accommodating the blade assemblies are formed in the disc body; the blade assembly comprises two guard plates and a blade clamped between the two guard plates; the blade and the guard plate are pivoted on the disc body through a pivoting piece; when the disc body rotates, the blade component is thrown out through centrifugal force; the blade is thrown out of part of the disc body and is edged on one side; the guard plate is provided with a notch close to the edging side of the blade. When the cutter head rotates, the blades are thrown out by using centrifugal force, and the blades can automatically rebound when touching hard objects; and the upper side and the lower side of the blade are provided with guard plates, so that fragments collided by the blade are prevented from flying out, and the safety is improved.)

1. A mower cutter head comprises a disc body (1) and a plurality of blade assemblies (2); the method is characterized in that: a plurality of accommodating grooves (11) for accommodating the blade assemblies (2) are formed in the disc body (1); the blade assembly (2) comprises two guard plates (21) and a blade (22) clamped between the two guard plates; the blade (22) and the guard plate (21) are pivoted on the disc body (1) through a pivoting piece (23); when the disc body (1) rotates, the blade component (2) is thrown out through centrifugal force.

2. A mower deck as claimed in claim 1 wherein: the blade (22) is thrown out of part of the disc body (1) to form one-side edge; the side of the guard plate (21) close to the edge of the blade (22) is provided with a notch.

3. A mower deck as claimed in claim 1 wherein: a step groove (111) is formed in one side, close to the pivot piece (23), of the accommodating groove (11); the stepped groove (111) can just accommodate the blade (22) to enter and exit.

4. A mower deck as claimed in claim 1 wherein: the tray body (1) is provided with a plurality of observation holes (12) which penetrate through the containing groove (11).

5. A mower deck as claimed in claim 1 wherein: a plurality of sinking grooves (13) are formed in the tray body (1).

Technical Field

The invention relates to a mower assembly, in particular to a mower cutter head.

Background

The mower is a mechanical tool for trimming lawns and vegetations, and realizes mowing action by driving a cutter disc with blades to rotate. The existing mower mainly comprises a blade fixedly arranged outside a cutter head, the blade is always exposed outside, the blade needs to be avoided all the time during transportation or storage of the mower, or the blade is detached after the mower is used, so that people are prevented from being scratched by the blade.

Chinese patent CN206227012U discloses a blade articulated mower blade disc, and the blade can be automatically retracted into the blade disc when not in use, and can avoid personnel to be scratched by the blade, but the blade itself lacks a protection device, and when the blade disc drives the high-speed rotation of blade, the blade touches hard objects and can lead to the blade to damage or even crack, and broken blade flies out and causes personnel injury easily, has the potential safety hazard.

Disclosure of Invention

The invention solves the technical problem of providing a mower cutter head, wherein when the cutter head rotates, blades are thrown out by centrifugal force, the blades can automatically rebound when touching hard objects, and guard plates are arranged on the upper side and the lower side of the blades, so that fragments collided by the blades are prevented from flying out, and the safety is improved.

The technical scheme adopted by the invention for solving the technical problems is as follows: a mower deck comprising a deck and a plurality of blade assemblies; a plurality of accommodating grooves for accommodating the blade assemblies are formed in the disc body; the blade assembly comprises two guard plates and a blade clamped between the two guard plates; the blade and the guard plate are pivoted on the disc body through a pivoting piece; when the disk body rotates, the blade component is thrown out through centrifugal force.

Further, the method comprises the following steps: the blade is thrown out of part of the disc body and is edged on one side; the guard plate is provided with a notch close to the edging side of the blade.

Further, the method comprises the following steps: a step groove is formed in one side, close to the pivot joint, of the accommodating groove; the step groove can just accommodate the blade to enter and exit.

Further, the method comprises the following steps: the tray body is provided with a plurality of observation holes penetrating through the containing groove.

Further, the method comprises the following steps: a plurality of sinking grooves are formed in the tray body.

The invention has the beneficial effects that:

1. the blade is pivoted on the disc body, and a containing groove is formed in the disc body and used for containing the blade; when the cutter head rotates, the blades are thrown out by utilizing centrifugal force.

2. When the blade is thrown out, the guard plate is synchronously thrown out and keeps synchronous motion with the blade, when the blade collides with a hard object and is broken, the broken blade can be prevented from flying out to cause personal injury, and the safety is improved.

3. The guard plate is provided with a notch corresponding to the sharpening edge of the blade, so that the area of the blade which is leaked outside the guard plate can be reduced, and the safety is further improved.

4. Storage tank one end sets up the step groove, just inserts the step inslot when the blade is thrown away for the blade is bigger than backplate throw-away angle, guarantees that the blade is shone out and can spill, avoids the cutting edge to be blocked by the backplate and can't normally mow.

5. The observation hole on the disc body can observe whether the blade is damaged, so that the cutter head is convenient to replace; the sink can reduce the overall weight of the cutter head.

Drawings

FIG. 1 is a schematic view of a cutter head structure;

FIG. 2 is a schematic view of the blade assembly being received in the receiving slot;

FIG. 3 is an enlarged view of the structure of the receiving groove;

FIG. 4 is a schematic view of a blade assembly configuration;

fig. 5 is a schematic cross-sectional view of the cutter head.

Labeled as: 1. a tray body; 11. a containing groove; 111. a step groove; 12. an observation hole; 13. sinking a groove; 2. a blade assembly; 21. a guard plate; 22. a blade; 23. a pivot member.

Detailed Description

For the purpose of enhancing the understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and examples, which are provided for the purpose of illustration only and are not intended to limit the scope of the present invention.

Examples

As shown in fig. 1 to 5, a mower deck comprises a deck 1 and a plurality of blade assemblies 2; a plurality of accommodating grooves 11 for accommodating the blade assemblies 2 are formed in the disc body 1; the blade assembly 2 comprises two guard plates 21 and a blade 22 clamped between the two guard plates; the blade 22 and the guard plate 21 are pivoted on the disc body 1 through a pivot 23; when the disk body 1 rotates, the blade component 2 is thrown out by centrifugal force.

On the basis, the blade 22 throws out part of the single-side edging of the disc body 1; the guard plate 21 is provided with a notch close to the edge of the blade 22.

On the basis, a step groove 111 is formed in one side of the accommodating groove 11, which is close to the pivot piece 23; the stepped groove 111 just accommodates the entrance and exit of the blade 22.

On the basis, a plurality of observation holes 12 penetrating through the accommodating groove 11 are formed in the tray body 1.

On the basis, a plurality of sinking grooves 13 are formed in the tray body 1.

In actual use, the cutter head integrally rotates, the blade assembly 2 is thrown out under the action of centrifugal force and rotates to the other end of the accommodating groove 11 along the pivot joint piece 23; the blade 22 can enter the step groove 111, so that the rotation angle of the blade 22 is slightly larger than that of the guard plate 21, the opening part of the blade 22 can be ensured to completely leak out of the guard plate 21, and the mowing efficiency is prevented from being influenced by the shielding of the guard plate.

The blade component 2 rebounds when encountering hard objects, so that the rotation of the disc body 1 is not influenced, and the damage to the whole cutter head can be avoided; if the blade 22 is crashed and broken by a hard object, only the blade 22 needs to be replaced, and the whole cutter head does not need to be replaced; the guard plate 21 can effectively prevent the blade 22 from being broken and scattered, and prevent people from being injured.

The above embodiments should not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent transformations fall within the protection scope of the present invention.