阅读说明：本技术 一种割草机刀片结构 (Blade structure of mower ) 是由 尹素君 于 2020-08-31 设计创作，主要内容包括：本发明公开了一种割草机刀片结构,由刀体,中孔,左锯齿和右锯齿构成,其特征在于：刀体的中部设置有用于固定于割草机上的中孔,刀体两端分别设置有左锯齿和右锯齿,左、右锯齿位于同心圆的圆弧外侧,所述左锯齿和右锯齿弧长分别为四分之一圆弧,刀体上设置有凹弧形刀刃,所述中孔外侧设置有销轴,所述销轴上固定有半圆型金属支架,所述半圆型金属支架的外径比锯齿同心圆外径长1-3厘米,所述销轴距离刀体的高度为1-3厘米。本发明产品能有效锯除直径较大的树枝树干,增加草杆与刀刃的接触时间,提高草杆被切断效率,有效阻止锯齿与坚硬物接触。(The invention discloses a mower blade structure, which consists of a mower body, a middle hole, a left sawtooth and a right sawtooth, and is characterized in that: the middle part of the cutter body is provided with a middle hole for fixing on a mower, the two ends of the cutter body are respectively provided with a left sawtooth and a right sawtooth, the left sawtooth and the right sawtooth are positioned outside circular arcs of concentric circles, the arc lengths of the left sawtooth and the right sawtooth are respectively a quarter circular arc, the cutter body is provided with a concave arc-shaped cutting edge, the outer side of the middle hole is provided with a pin shaft, a semicircular metal support is fixed on the pin shaft, the outer diameter of the semicircular metal support is 1-3 cm longer than the outer diameter of the concentric circles of the sawteeth, and the distance between the pin shaft and the cutter body is 1-. The product of the invention can effectively saw off branches and trunks with larger diameters, increase the contact time of the grass pole and the cutting edge, improve the cutting efficiency of the grass pole and effectively prevent the saw teeth from contacting hard objects.)

1. The utility model provides a lawn mower blade structure, by the cutter body, the mesopore, left sawtooth and right sawtooth constitute its characterized in that: the middle part of the cutter body is provided with a middle hole for fixing on a mower, the two ends of the cutter body are respectively provided with a left sawtooth and a right sawtooth, the left sawtooth and the right sawtooth are positioned outside circular arcs of concentric circles, the arc lengths of the left sawtooth and the right sawtooth are respectively a quarter circular arc, the cutter body is provided with a concave arc-shaped cutting edge, the outer side of the middle hole is provided with a pin shaft, a semicircular metal support is fixed on the pin shaft, the outer diameter of the semicircular metal support is 1-3 cm longer than the outer diameter of the concentric circles of the sawteeth, and the distance between the pin shaft and the cutter body is 1-.

Technical Field

The invention relates to a mower accessory, in particular to a mower blade structure.

Background

The existing special blade for the mower in the market is in a long strip shape, the two sides of the blade are provided with mowing edges, and the blade is in a linear shape, so that a thick or tough straw rod can quickly slide from the blade and leave the blade due to limited contact time with the blade, and is not easy to cut. And current blade is provided with the sawtooth in the rectangle cutter body outside and cuts off when the branch trunk, because carry out rotary motion in the cutter body, the sawtooth is little with branch trunk unit time in area of contact, is difficult to the cutting off of great diameter branch trunk, and current grass cutting blade still exists the in-process of mowing, touches hard things such as stone easily, easily causes the blade to damage etc. not enough.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and aims to provide a mower blade structure which is convenient for cutting off branches, trunks and weeds with larger diameters and can effectively prevent blades from contacting hard objects such as stones.

In order to achieve the purpose, the technical scheme of the invention is as follows: a mower blade structure comprises a cutter body, a middle hole, a left sawtooth and a right sawtooth, wherein the middle hole used for being fixed on a mower is formed in the middle of the cutter body, the left sawtooth and the right sawtooth are arranged at two ends of the cutter body respectively and are located on the outer sides of arcs of concentric circles, the arc lengths of the left sawtooth and the right sawtooth are respectively a quarter of the arc, a concave arc-shaped cutting edge is arranged on the cutter body, a pin shaft is arranged on the outer side of the middle hole, a semicircular metal support is fixed on the pin shaft, the outer diameter of the semicircular metal support is 1-3 cm longer than the outer diameter of the concentric circles of the sawteeth, and the distance between the pin shaft and the cutter body is 1-3.

The invention adopts the technical scheme that the method has the beneficial effects that: the left saw teeth and the right saw teeth are arranged on the outer sides of the arcs of the concentric circles, and the left saw teeth and the right saw teeth rotate under the driving of the motor, so that branches and trunks with larger diameters can be effectively sawed; the semi-circular metal support has outer diameter longer than that of the concentric circle of the sawteeth, and can prevent the sawteeth from contacting hard objects such as stones when the semi-circular metal support is contacted with the hard objects.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

In the figure: 1. the cutter comprises a center hole, a cutter body 2, a right sawtooth 3, a left sawtooth 4, a blade 5, a metal support 6 and a pin shaft 7.

Detailed Description

The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention in any way.

As shown in fig. 1, in order to achieve the above object, the technical solution of the present invention is: a mower blade structure comprises a cutter body 2, a middle hole 1, left sawteeth 4 and right sawteeth 3, wherein the middle hole 1 used for being fixed on a mower is arranged in the middle of the cutter body 2, the left sawteeth 4 and the right sawteeth 3 are respectively arranged at two ends of the cutter body 2, the left sawteeth 4 and the right sawteeth 3 are positioned on the outer sides of arcs of concentric circles, the arc lengths of the left sawteeth 4 and the right sawteeth 3 are respectively a quarter of an arc, a concave arc-shaped cutting edge 5 is arranged on the cutter body 2, a pin shaft 7 is arranged on the outer side of the middle hole 1, a semicircular metal support 6 is fixed on the pin shaft 7, the outer diameter of the semicircular metal support 6 is 1-3 cm longer than the outer diameter of the concentric circles of the sawteeth, and the.

The metal support 6 of the invention adopts a semicircular shape, when weeds and the like are cut by using the concave arc-shaped cutting edge 5, the cutting direction is along the arc direction of the metal support 6, the metal support 6 firstly contacts with the sawteeth and hard objects such as stones and the like, and prevents the sawteeth from contacting with the hard objects such as the stones and the like, thus effectively avoiding the damages of the hard objects such as the stones and the like in the weeds to the sawteeth. When cutting the great branch trunk of diameter, the cutting direction is along 6 circular arc back directions of metal support, and metal support 6 is not contacting with the branch trunk, and the sawtooth can effectively cut off the branch trunk.

The foregoing shows and describes the general principles and features of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.