CN218104179U

CN218104179U - Anti-winding mowing tool

Info

Publication number: CN218104179U
Application number: CN202222558764.5U
Authority: CN
Inventors: 黄炳南
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2022-12-23
Anticipated expiration: 2032-09-27

Abstract

The utility model provides an antiwind cutter of mowing, its upper portion and lower part that includes the adaptation installation, be equipped with the cavity between upper portion and the lower part, be equipped with the rope in the cavity, be equipped with the rope dish on the lower part, the rope is around the rope dish, just the both ends of rope extend to the outside of cavity, upper portion is equipped with the blade, upper portion with the lower part all is "circular" and coaxial arrangement, the radius on upper portion is less than the radius of lower part. The weeds cut by the rope are further cut into pieces by the blades, so that the weeds are prevented from being wound on the rotating shaft, and the working efficiency is improved. The upper portion and the lower portion are arranged to be circular, the radius of the upper portion is smaller than that of the lower portion, when the rope meets an obstacle, the rope can rotate to the inside of a step formed by the upper portion and the lower portion, the rope is prevented from being damaged, and the service life of the rope is prolonged.

Description

Anti-winding mowing tool

Technical Field

The utility model relates to a blade disc technical field especially relates to an antiwind mowing tool.

Background

The mowing knife is installed on the mower through the rotating shaft, and the rotating shaft is driven to rotate through the power device of the mower to drive the mowing knife to rotate, so that mowing can be achieved. Common grass cutter cutting part includes blade spare and rope form spare, and under the rotatory centrifugal force effect that produces of blade disc, cutting part can surpass the blade disc and can realize cutting weeds, nevertheless to the many and long lawn of grass, the grass after being cut twines in the pivot easily because inertial force acts on, and when winding grass too much back, the pivot rotational speed can reduce, appears by the phenomenon of locking even, leads to mowing the efficiency reduction. When the rope-shaped cutting component meets an obstacle, the cutting component directly rotates towards the cutter head due to the action of force and directly impacts the cutter head, so that the cutting component is easily damaged.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an anti-winding mowing tool.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the anti-winding mowing tool comprises an upper portion and a lower portion which are installed in a matched mode, a cavity is arranged between the upper portion and the lower portion, a rope is arranged in the cavity, a rope disc is arranged on the lower portion, the rope is wound around the rope disc, two ends of the rope extend to the outside of the cavity, a blade is arranged on the upper portion, the upper portion and the lower portion are both installed in a circular mode and are installed coaxially, and the radius of the upper portion is smaller than that of the lower portion.

The rope is a nylon rope or a steel rope.

The rope disc is arranged at the lower part close to the circle center, and the rope is coiled around the rope disc clockwise or counterclockwise.

The upper portion is located axle center department and is equipped with first hubcap, first hubcap with the rope dish internal diameter equals, upper portion with the lower part is through first hubcap with rope dish fixed mounting.

The blades are arranged on the outer side of the first shaft ring and are axially mounted.

The thickness of the lower part is D2, the thickness of the upper part is D1, and D2 is more than D1.

The outer wall of the rope disc is provided with a plurality of notches, the middle section of the rope is clamped in the notches, and two ends of the rope are wound on the rope disc in the same direction.

A plurality of limiting ribs are arranged on the lower part; and a groove matched with the limiting rib is formed in the position, corresponding to the limiting rib, of the upper part.

And a second shaft ring is arranged at the position of the axis of the lower part, and the second shaft ring is coaxial with the first shaft ring.

And a boss is arranged on the outer side of the second shaft ring, and a concave cavity is arranged at the bottom of the boss.

The utility model discloses following beneficial effect has: the upper part is provided with the blade, and weeds cut by the rope are further cut into pieces by the blade, so that the weeds are prevented from being wound on the rotating shaft, and the working efficiency is improved. The upper portion and the lower portion are arranged to be circular, the radius of the upper portion is smaller than that of the lower portion, when the rope meets an obstacle, the rope can rotate to the step formed by the upper portion and the lower portion, the rope is prevented from being damaged, and the service life of the rope is prolonged.

Drawings

Fig. 1 is a perspective view of the overall structure of the embodiment of the present invention.

Fig. 2 is an exploded view of the whole structure of the embodiment of the present invention.

Fig. 3 is a front view of the upper and lower mounting of an embodiment of the present invention.

Fig. 4 is a perspective view of the lower part of the embodiment of the present invention.

Fig. 5 is a bottom perspective view of the lower part of the embodiment of the present invention.

Reference numbers in the figures: the cutting tool comprises an upper portion 1, a groove 11, a first shaft ring 12, a lower portion 2, a rope disc 21, a notch 22, a limiting rib 23, a second shaft ring 24, a boss 25, a concave cavity 26, a rope 3, a blade 4 and a cavity 5.

Detailed Description

As shown in fig. 1-5, an anti-winding grass cutter comprises an upper portion 1 and a lower portion 2 which are installed in a matching manner, a cavity 5 is arranged between the upper portion 1 and the lower portion 2, a rope 3 is arranged in the cavity 5, a rope disc 21 is arranged on the lower portion 2, the rope 3 is wound around the rope disc 21, two ends of the rope 3 extend to the outside of the cavity 5, and a blade 4 is arranged on the upper portion 1. When the cutter was installed in the pivot, external drive device was connected in the pivot, and external drive device can be motor or internal-combustion engine or hydraulic motor etc. through external drive device drive pivot, the pivot drives the cutter high-speed rotation, and the centrifugal force of production is got rid of rope 3 outward to can cut off weeds fast, the weeds of being cut off are further cut apart by blade 4 of upper portion 1, have avoided the winding of weeds in the pivot, thereby improved work efficiency.

Specifically, the rope disc 21 is arranged at a position close to the center of the circle on the lower portion 2, the rope 3 is coiled around the rope disc 21 by taking the rope disc 21 as the center, clockwise or counterclockwise needles are coiled around the rope disc 21, and two ends of the rope 3 extend to the outside of the cavity 5.

In this embodiment, the upper part 1 is provided with a first collar 12 at the axial center, and the upper part 1 and the lower part 2 are fixedly installed by the first collar 12 and the rope disk 21. Specifically, the inner diameters of the first collar 12 and the rope disc 21 are equal, the bottom of the first collar 12 is connected with the top of the rope disc 21, and the connection mode can be welding, gluing or integral forming, so that the upper part 1 and the lower part 2 are fixed together.

Further, as shown in fig. 2 and 5, a second collar 24 is disposed at an axial position in the rope reel 21, and the first collar 12 and the second collar 24 are coaxial. And a boss 25 is arranged on the outer side of the second collar 24, and a concave cavity 26 is arranged at the bottom of the boss 25. When the tool is installed, the nut is placed in the cavity 26, and the rotating shaft penetrates through the first shaft ring 12 and the second shaft ring 24 in sequence and then is screwed and matched with the nut, so that the tool is fixed on the rotating shaft.

As shown in fig. 1, the blades 4 are axially disposed on the upper portion 1 and distributed around the outer side of the first collar 12, specifically, the blades 4 are disposed in a plurality and equally distributed on the outer side of the circumference of the second collar 12, and cutting edges are disposed on both sides of the blades 4 to cut weeds into smaller pieces.

As shown in fig. 1, 2 and 3, the upper part 1 and the lower part 2 are both circular and are coaxially mounted, the radius of the upper part 1 is smaller than that of the lower part 2, and the upper part 1 and the lower part 2 form a step. When the cutter is in operation, when the rope 3 meets obstacles such as stones, the rope 3 rotates to the step formed by the upper part 1 and the lower part 2, the rope 3 is prevented from impacting a cutter head and the obstacles by large impact force, the effect of preventing the rope from being damaged is achieved, and the service life of the rope is prolonged. In particular, the difference between the radii of the upper part 1 and the lower part 2 is greater than the diameter of the rope 3. In practical use, the rope 3 may be a nylon rope or a steel rope, in other words, the rope 3 may be a nylon rope or a steel rope according to the working environment.

Further, the thickness of the lower part 2 is D2, the thickness of the upper part 1 is D1, and D2 is more than D1. In the use process, the lower part 2 has stronger anti-collision performance and is not easy to damage when meeting obstacles.

As shown in fig. 2 and 5, a plurality of notches 22 are provided on the outer wall of the rope disk 21, specifically, two notches 22 are provided, and the notches 22 are located on the outer wall of the rope disk 21 and are arranged opposite to each other. The middle section of the rope 3 is wound around the second shaft coil 24 and clamped in the notch 22, and the two ends of the rope are wound around the rope disc 21 in the same direction and are wound on the lower part 2.

And a plurality of limiting ribs 23 are arranged on the lower part 2. The upper portion 1 is provided with a groove 11 corresponding to the position of the limiting rib 23. Specifically, the limiting rib 23 is located at a position of the lower portion 2 close to the circumferential outer wall. When this blade disc rotated, the both ends of rope 3 were got rid of along with centrifugal force, spacing muscle 23 was used for the restriction the home range of rope 3 avoids rope 3 breaks away from when following the blade disc rotation, and both ends break away from to coil, and constantly outwards extend until scattering into a straight rope completely. Furthermore, because the limiting rib 23 limits the moving range of the rope 3, the user can adjust the length of the rope 3 extending outwards according to the actual use condition.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or that certain features may be substituted in the embodiments or modified in some cases.

Claims

1. An anti-winding mowing tool is characterized by comprising an upper part (1) and a lower part (2) which are installed in a matching manner, a cavity (5) is arranged between the upper part (1) and the lower part (2), a rope (3) is arranged in the cavity (5), a rope disc (21) is arranged on the lower part (2),

the rope (3) is wound around the rope disc (21), two ends of the rope (3) extend to the outside of the cavity (5), the upper portion (1) is provided with the blade (4), the upper portion (1) and the lower portion (2) are both circular and are coaxially mounted, and the radius of the upper portion (1) is smaller than that of the lower portion (2).

2. Anti-wind grass cutting tool according to claim 1, characterized in that the cord disc (21) is provided at the lower part (2) near the centre of the circle, the cord (3) being wound clockwise or counterclockwise around the cord disc (21).

3. Anti-wrap grass cutter according to claim 2, characterized in that the upper part (1) is provided with a first collar (12) at the axial center, the first collar (12) being of equal inner diameter to the rope disc (21), the upper part (1) and the lower part (2) being fixedly mounted by means of the first collar (12) and the rope disc (21).

4. Anti-wind grass cutting tool according to claim 3, characterized in that the blade (4) is provided with several blades (4) distributed outside the first collar (12) and mounted axially.

5. Anti-wrap grass cutter according to claim 1, characterized in that the thickness of the lower part (2) is D2 and the thickness of the upper part (1) is D1, D2 > D1.

6. Anti-wind grass cutting tool according to claim 2, characterized in that the outer wall of the cable disc (21) is provided with notches (22), the middle section of the cable (3) is caught in the notches (22), and both ends are wound around the cable disc (21) in the same direction.

7. Anti-wind grass cutting tool according to claim 1, characterized in that the lower part (2) is provided with a number of limiting ribs (23); the upper portion (1) is provided with a groove (11) matched with the limiting rib (23) at a position corresponding to the limiting rib (23).

8. Anti-wind grass cutting tool according to claim 3, characterized in that the lower part (2) is provided with a second collar (24) at the axial center, the second collar (24) being coaxial with the first collar (12).

9. Anti-wind grass cutting tool according to claim 8, characterized in that the second collar (24) is provided with a boss (25) on the outside, and the bottom of the boss (25) is provided with a cavity (26).