CN110419316B

CN110419316B - Reciprocating cutting type grass trimmer

Info

Publication number: CN110419316B
Application number: CN201910643595.5A
Authority: CN
Inventors: 赵婷婷
Original assignee: Xinchang Daboluo Agricultural Development Co ltd
Current assignee: Xinchang Daboluo Agricultural Development Co ltd
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2021-05-28
Anticipated expiration: 2039-07-17
Also published as: CN110419316A

Abstract

The invention belongs to the field of garden equipment, and particularly relates to a reciprocating cutting type grass trimmer which comprises a fixed part and a rotating part, wherein the rotating part can rotate along the periphery of the fixed part, two sides of the rotating part are fixedly connected with grass trimming strips, the side walls of the grass trimming strips are provided with a section of sliding groove, strip-shaped movable racks are connected in the sliding groove in a sliding mode, the upper side and the lower side of each movable rack are provided with fixed teeth fixedly connected with the side walls of the grass trimming strips, the movable racks can be matched with the fixed teeth to generate a cutting effect when moving along the sliding groove, and the fixed part is provided with a driving mechanism for driving the movable racks to reciprocate in the sliding groove. According to the grass stem transverse cutting machine, the movable rack and the driving mechanism are arranged, the movable rack can be driven to move back and forth along the sliding groove under the action of the driving mechanism, transverse cutting of grass stems can be achieved through cooperation of the movable rack and the fixed teeth, the grass cutting strips have a whipping effect, meanwhile, a certain cutting effect can be achieved, and the grass cutting machine is particularly suitable for cleaning short grass stems.

Description

Reciprocating cutting type grass trimmer

Technical Field

The invention belongs to the field of garden equipment, and particularly relates to a reciprocating cutting type grass trimmer.

Background

A grass trimmer is a handheld lawn trimming tool for trimming lawns, and generally comprises a holding operating rod, a connector, a motor, a fixed part, a rotating part and grass trimming strips, wherein the motor is used for driving the rotating part to rotate, so that the grass trimming strips rotate at a high speed to form an annular cutting wheel, grass stems are shoved, and turf is kept at the same height.

The existing grass trimmer can only utilize the drawing and beating of the grass strips in the using process to block and break grass stems, when the length of the grass stems is shorter, the moving space of the tip parts of the grass stems is larger, the grass strips are easy to break and swing in the drawing and beating process of the grass strips, and inconvenience is caused to cutting.

To this end, we propose a reciprocating cutting type lawnmower to solve the above problems.

Disclosure of Invention

The invention aims to provide a reciprocating cutting type grass trimmer with a good using effect, aiming at the problem that the cutting effect of the conventional grass trimmer on shorter grass stems is poor.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a machine of beating grass to reciprocal cutting formula, includes fixed part and rotating part, the rotating part can be followed the fixed part peripheral rotation, the equal fixedly connected with in both sides of rotating part beats the grass strip, seted up one section spout on the lateral wall of beating the grass strip, sliding connection has the movable rack of bar in the spout, the upper and lower both sides of movable rack all are equipped with and beat the fixed tooth of grass strip lateral wall fixed connection, make movable rack can cooperate fixed tooth to produce the effect of cutting when moving along the spout, be equipped with the actuating mechanism who is used for driving movable rack reciprocating motion in the spout on the fixed part.

In the reciprocating cutting type grass trimmer, the driving mechanism comprises a linkage rope, two ends of the linkage rope are respectively and fixedly connected to the two movable racks, and a guide wheel is fixed at the eccentric position of the fixed part, so that the linkage rope is limited by the guide wheel to be bent and deformed when contacting with the guide wheel.

In foretell reciprocal cutting formula machine of beating grass, actuating mechanism includes that fixed connection is close to the permanent magnetism section of fixed part one end at each movable rack, the lower extreme evenly distributed of fixed part has a plurality of magnetic pole directions and the parallel permanent magnetism post in fixed part surface, and adjacent two the magnetic pole opposite direction of permanent magnetism post makes the permanent magnetism section can receive suction and repulsion in proper order when being close to each permanent magnetism post.

Compared with the prior art, the reciprocating cutting type grass trimmer has the advantages that:

1. according to the straw cutting machine, the movable rack and the driving mechanism are arranged, the movable rack can be driven to move back and forth along the sliding groove under the action of the driving mechanism, the movable rack is matched with the fixed teeth, transverse cutting of straw can be achieved, the grass cutting strip has a whipping effect, meanwhile, a certain cutting effect can be achieved, and the straw cutting machine is particularly suitable for cleaning short and small straw.

2. By arranging the permanent magnetic columns and the permanent magnetic sections, the movable rack can move at a higher frequency, a better cutting effect is realized, and the movable rack has the advantages of low material loss, easiness in cleaning and the like.

Drawings

FIG. 1 is a schematic view of a reciprocating cutting lawnmower according to an embodiment 1 of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 3 is a schematic bottom view of an embodiment 1 of the reciprocating cutting lawnmower according to the present invention;

FIG. 4 is a schematic structural view of a linkage rope in a straight state in an embodiment 1 of the reciprocating cutting type mower provided by the present invention;

FIG. 5 is a schematic view of a connecting structure of a movable rack and a mowing bar in an embodiment 1 of the reciprocating cutting type mowing machine provided by the invention;

FIG. 6 is a schematic bottom view of an embodiment 2 of the reciprocating cutting type mower provided by the present invention.

In the figure, 1 a fixed part; 2 a rotating part; 3, beating the swath; 31 a chute; 32 a movable rack; 321 teeth; 33, fixing the teeth; 41 a linkage rope; 42 a guide wheel; 51 permanent magnet segments; 52 permanent magnet columns.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

Example 1

As shown in fig. 1-5, a reciprocating cutting type grass trimmer comprises a fixed part 1 and a rotating part 2, wherein the fixed part 1 is disc-shaped, the rotating part 2 is ring-shaped, the rotating part 2 is driven by a driving motor, so that the rotating part 2 can coaxially rotate along the periphery of the fixed part 1, both sides of the rotating part 2 are fixedly connected with grass mowing strips 3, a section of chute 31 is arranged on the side wall of the grass mowing strips 3, it should be noted that the chute 31 is arranged on the windward side (namely the striking side) of the grass mowing strips 3, a strip-shaped movable rack 32 is slidably connected in the chute 31, the movable rack 32 is composed of a strip-shaped movable strip and a plurality of teeth 321 fixedly connected on the movable strip, the teeth 321 are equidistantly distributed on the movable strip, the upper side and the lower side of the movable rack 32 are respectively provided with fixed teeth 33 fixedly connected with the side wall of the grass mowing strips 3, the intervals between the teeth 321 and the fixed teeth 33 are the same, and the teeth 321 and, make between tooth 321 and the fixed tooth 33 can coincide completely or crisscross each other, can cooperate fixed tooth 33 to produce the effect of cutting when making movable rack 32 remove along spout 31, it is worth mentioning because the upper and lower both sides of tooth 321 all are equipped with fixed tooth 33, when the straw stem card is in the clearance between two lower two sets of fixed teeth 33, fixed tooth 33 can carry on spacingly to the straw stem, make tooth 321 can cut off the straw stem more easily, be equipped with the actuating mechanism who is used for driving movable rack 32 reciprocating motion in spout 31 on fixed part 1.

In this embodiment, the driving mechanism includes a linkage rope 41 having two ends respectively fixedly connected to the two movable racks 32, the linkage rope 41 is a wear-resistant inelastic rope, and a guide wheel 42 is fixed at an eccentric position of the fixing portion 1, so that the linkage rope 41 is restricted by the guide wheel 42 to be bent and deformed when contacting the guide wheel 42.

The working principle of the embodiment is as follows:

when the rotating part 2 drives the grass mowing strips 3 to rapidly rotate, the movable racks 32 in the grass mowing strips 3 are subjected to radially outward centrifugal force, the two grass mowing strips 3 are linked by the linkage rope 41, the two ends of the linkage rope 41 are fixed, and the middle part of the linkage rope 41 is limited by the guide wheel 42, so that the linear distance between the two ends of the linkage rope 41 is changed due to the change of the positions of the linkage rope 41 in the process that the linkage rope 41 rotates along with the grass mowing strips 3, and if the linkage rope 41 is positioned on one side of the guide wheel 42 (as shown in fig. 3), the distance between the two ends of the linkage rope 41 is shortened, and the two movable racks 32 are pulled to move towards the middle part; when the linkage rope 41 is positioned at the side far away from the guide wheel 42 (as shown in fig. 4), the movable rack 32 is moved towards two sides due to the centrifugal force, and the linkage rope 41 is straightened again; reciprocating in this way, the movable rack 32 reciprocates in the chute 31, thereby realizing the cutting effect on the grass stalks.

Example 2

As shown in fig. 6, the present embodiment is different from embodiment 1 in that: the driving mechanism comprises permanent magnet sections 51 fixedly connected to one ends, close to the fixed portion 1, of the movable racks 32, a plurality of permanent magnet columns 52 are uniformly distributed at the lower end of the fixed portion 1, the magnetic pole directions of the permanent magnet columns are parallel to the surface of the fixed portion 1, the magnetic pole directions of every two adjacent permanent magnet columns 52 are opposite, and the permanent magnet sections 51 are enabled to sequentially receive suction force and repulsive force when being close to the permanent magnet columns 52.

In the present embodiment, with the continuous rotation of the grass mowing bar 3, the position of the movable rack 32 relative to the plurality of permanent magnetic columns 52 on the fixed part 1 is changed continuously, and when the movable rack 32 moves to the permanent magnetic column 52 where the same poles of the movable rack 32 and the permanent magnetic section 51 repel each other, the movable rack 32 moves outwards; when the movable rack 32 moves to the permanent magnetic column 52 which is opposite in polarity to the permanent magnetic section 51, the movable rack 31 is moved; along with beat the continuous rotation of swath 3, can realize that movable rack 32 reciprocating motion in spout 31, in this embodiment, utilize magnetic force to realize movable rack 31's removal, it is little to the loss of material, and easily clearance, it is more simple and convenient.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a machine of beating grass to reciprocal cutting formula, includes fixed part (1) and rotating part (2), fixed part (1) periphery is rotatory can be followed to rotating part (2), the equal fixedly connected with in both sides of rotating part (2) beats swath (3), its characterized in that, one section spout (31) have been seted up on the lateral wall of swath (3), sliding connection has movable rack (32) of bar in spout (31), the upper and lower both sides of movable rack (32) all are equipped with fixed tooth (33) of beating swath (3) lateral wall fixed connection, make movable rack (32) can cooperate fixed tooth (33) to produce the effect of cutting when spout (31) remove, be equipped with on fixed part (1) and be used for driving movable rack (32) reciprocating motion's actuating mechanism in spout (31).

2. A reciprocating cutter type lawn mower as claimed in claim 1, wherein said driving mechanism comprises a linkage rope (41) having two ends respectively fixedly connected to the two movable racks (32), and a guide wheel (42) is fixed at the eccentric position of the fixed part (1), so that the linkage rope (41) is restricted by the guide wheel (42) to be bent and deformed when contacting with the guide wheel (42).

3. A reciprocating cutting type grass trimmer according to claim 1, characterized in that the driving mechanism comprises permanent magnetic sections (51) fixedly connected to one end of each movable rack (32) close to the fixed part (1), a plurality of permanent magnetic columns (52) with magnetic poles parallel to the surface of the fixed part (1) are uniformly distributed at the lower end of the fixed part (1), and the magnetic poles of two adjacent permanent magnetic columns (52) are opposite in direction, so that the permanent magnetic sections (51) are sequentially attracted and repelled when being close to each permanent magnetic column (52).