CN106912247A - Hay mover - Google Patents

Abstract

Include the invention discloses a kind of hay mover：Blade, prime mover, chassis and stopping means；Blade is used to mow；Prime mover is used to drive blade rotation；Chassis is used to assemble prime mover；Stopping means is used to limit the rotation of blade；Wherein, blade can be rotated relative to chassis；Stopping means includes locating part；Locating part is movably connected to chassis；Locating part at least has first position and the second place with respect to chassis；When locating part is located at first position, locating part energy backstop is on the path of blade rotation；When locating part is located at the second place, locating part exits the path of blade rotation.Hay mover disclosed by the invention, being capable of efficiently quick quick removal of inserts.

Description

Lawn mower

technical field

The invention relates to a lawnmower, in particular to a lawnmower with a blade limiting device.

Background technique

A lawn mower is a tool used by a user to trim the lawn. The blade rotates at high speed and hits the blade of grass to realize the cutting function. With long-time work, the cutting edge of the blade will wear out, and the sharp cutting edge will become dull, which will affect the cutting efficiency. At this time, the user needs to disassemble the blade, sharpen the cutting edge and use it again.

When cutting relatively wet grass, the cut grass clippings are easy to adhere to the cutting cavity, which affects the cutting quality, so the user needs to clean the cutting cavity in time. When the user cleans the cutting cavity, the blade will face the user, and if the blade rotates during the cleaning process, it will bring great danger.

The blade of the traditional lawnmower is disassembled by clamping the blade through an independent tool that assists in dismounting the blade. The user also uses the tool to secure the blade to the chassis. However, the separate existence of the tool makes it easier to lose it. And because it is an independent part, the fixing of the blade and the chassis is not reliable enough.

Contents of the invention

In order to solve the deficiencies in the prior art, the purpose of the present invention is to provide a lawnmower that can effectively lock the blade and the chassis,

In order to achieve the above object, the present invention adopts the following technical solutions:

A lawnmower comprises: a blade, a prime mover, a chassis and a limiting device; the blade is used for cutting grass; the prime mover is used to drive the blade to rotate; the chassis is used for assembling the prime mover; the limiting device is used to limit the rotation of the blade; , the blade can rotate relative to the chassis; the limiter includes a limiter; the limiter is movably connected to the chassis; the limiter has at least a first position and a second position relative to the chassis; when the limiter is in the first position, the limiter The part can stop on the path of blade rotation; when the limit part is in the second position, the limit part withdraws from the path of blade rotation.

Further, the limiting member is rotatably connected to the chassis.

Further, the limiter is rotatably connected to the edge of the chassis, and the limiter includes: a limiter for contacting the blade; when the limiter is at the first position, the limiter is located inside the edge of the chassis; the limiter is located at In the second position, the limiting part is located outside the edge of the chassis.

Further, the limiting member is rotatably connected to the edge of the chassis, and the limiting member includes: a rotating shaft part for forming a rotating connection with the chassis; the rotating shaft part is arranged outside the edge of the chassis.

Further, the limiter includes: a limiter for contacting the blade; when the limiter is at the first position, the limiter is located inside the edge of the chassis; when the limiter is at the second position, the limiter is located at the edge of the chassis outside of the edge.

Further, the limiting part includes: a connecting part, used for connecting the limiting part and the rotating shaft part; when the limiting part is in the first position, the connecting part is in contact with the chassis.

Further, the limiting device further includes: a biasing member, used to keep the limiting member at the first position or the second position.

Further, the limiter is rotatably connected to the edge of the chassis, and the limiter includes: a limiter, used to contact the blade; a rotating shaft, used to form a rotational connection with the chassis; a connecting portion, used to connect the limiter and the rotating shaft part; the shaft part is arranged on the outer side of the edge of the chassis; when the limiter is at the first position, the limiter is located at the inner side of the edge of the chassis; when the limiter is at the second position, the limiter is at the outer side of the edge of the chassis; the biasing member It is a spring; one end of the spring is connected to the chassis, and the other end is connected to the connecting part.

Further, the limiting member is formed with: a first limiting surface and a second limiting surface; the first limiting surface stops the rotation of the blade in the clockwise direction; the second limiting surface stops the rotation of the blade in the counterclockwise direction. rotation.

Further, the first limiting surface and the second limiting surface are oppositely arranged, and the distance between the first limiting surface and the second limiting surface is greater than or equal to the width of the blade.

The invention is beneficial in that it is quick and convenient to disassemble and replace the blade, and the locking between the blade and the chassis is reliable.

Description of drawings

Fig. 1 has shown a kind of mower as embodiment;

Fig. 2 is a schematic diagram of the limiting member of the lawnmower in Fig. 1 in the first position;

Fig. 3 is a schematic diagram of the limiting member of the lawn mower in Fig. 1 in a second position;

Fig. 4 is a partially enlarged view of the limiting device in Fig. 1;

Fig. 5 is a schematic diagram of locking the blade by the limiting device in Fig. 4 .

detailed description

The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

As shown in FIG. 1 , the lawnmower 100 includes a blade 10 , a prime mover 20 , a chassis 30 , a handle device 40 , a wheel set 50 and a limiting device 60 .

The blade 10 is used for mowing grass. The prime mover 20 drives the blade 10 to rotate. Generally speaking, common prime movers 20 include internal combustion engines powered by fuel combustion, and electric motors powered by electricity. The chassis 30 is a main part of the lawn mower 100, and each part is assembled into one body. The prime mover 20 is attached to the chassis 30 . Wheel set 50 rotates relative to chassis 30 to enable mower 100 to move relative to the ground. The handle arrangement 40 is connected to the chassis 30 . In order to control the mower 100 conveniently, a control device for controlling the prime mover 20 is provided on the handle device 40 . In addition, the user can control the traveling direction of the mower 100 through the handle device 40 . The chassis 30 device is formed with a cutting cavity 31 , and the blade 10 rotates in the cutting cavity 31 . The limiting device 60 is used to limit the rotation of the blade 10 .

As shown in FIGS. 2 and 3 , the limiting device 60 includes a limiting member 70 and a biasing member 80 . The limiting member 70 is movably connected to the chassis 30 . Specifically, the limiting member 70 is rotatably connected to the chassis 30 . By adopting the rotational connection, the limiting device 60 can adopt a smaller volume and a compact structure.

The limiting member 70 includes: a rotating shaft portion 71 , a limiting portion 72 and a connecting portion 73 . The rotating shaft portion 71 is used to form a rotational connection with the chassis 30 . The limiting member 70 is rotatably connected to the chassis 30 through the rotating shaft portion 71 . Specifically, the limiting member 70 is rotatably connected to the edge of the chassis 30 . The shaft portion 71 is disposed outside the edge of the chassis 30 . The limiting member 70 rotates around the pivot axis. The pivot axis of the limiting member 70 is perpendicular to the rotation axis of the blade 10 . The limiting portion 72 is used to contact the blade 10 to stop the rotation of the blade 10 . The connecting portion 73 connects the rotating shaft portion 71 and the limiting portion 72 .

The limiting member 70 has at least a first position and a second position relative to the chassis 30 . As shown in FIG. 2 , when the limiting member 70 is located at the first position, the limiting member 70 can stop on the path of rotation of the blade 10 , specifically, the limiting portion 72 is located inside the edge of the chassis 30 , that is, the cutting cavity 31 Inside. The limiting portion 72 stops on the path of rotation of the blade 10 and can block the rotation of the blade 10 relative to the chassis 30 .

As shown in FIG. 3 , when the limiting member 70 is located at the second position, the limiting member 70 exits the rotation path of the blade 10 . Specifically, the limiting portion 72 is located outside the edge of the chassis 30 . At this time, the limiting portion 72 moves out of the cutting cavity 31 . The blade 10 is rotatable relative to the chassis 30 .

As shown in FIGS. 2 and 3 , the biasing member 80 is used to keep the limiting member 70 at the first position or the second position. As shown in FIG. 2 , the biasing member 80 maintains the limiting member 70 at the first position. As shown in FIG. 3 , the biasing member 80 maintains the limiting member 70 at the second position. Specifically, the biasing member 80 is a spring, one end of the spring is connected to the chassis 30 , and the other end of the spring is connected to the connecting portion 73 . As shown in FIG. 2 , when the limiting member 70 is at the first position, the connecting portion 73 is in contact with the chassis 30 . The bottom of the chassis 30 contacts the connecting portion 73 to limit the position of the position limiting member 70 .

As shown in FIGS. 4 and 5 , the limiting member 70 is formed with a first limiting surface 74 and a second limiting surface 76 . The first limiting surface 74 stops the rotation of the blade 10 in the clockwise direction; the second limiting surface 76 stops the rotation of the blade 10 in the counterclockwise direction. The first limiting surface 74 is opposite to the second limiting surface 76 , and the distance between the first limiting surface 74 and the second limiting surface 76 is greater than or equal to the width of the blade 10 . Specifically, the first limiting surface 74 and the second limiting surface 76 are planes; the first limiting surface 74 is parallel to the second limiting surface 76 . The limiting member 70 is made of metal material. The limiting part 70 is a sheet metal part, which is stamped.

As shown in FIGS. 4 and 5 , the limiting device 60 further includes a fixing pin 90 ; a first fixing hole 75 is formed on the first limiting surface 74 , and a second fixing hole 77 is formed on the second limiting surface 76 . The fixing pin 90 passes through the first fixing hole 75 and the second fixing hole 77 . The fixing pin 90 can effectively lock the blade 10 between the limiting portion 72 and the fixing pin 90 to prevent the blade 10 from moving. This avoids the situation that the blade 10 is out of lock when the spring fails or the limiting member 70 and the chassis 30 are partially deformed.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the above-mentioned embodiments do not limit the present invention in any form, and all technical solutions obtained by means of equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims (10)

1. A lawn mower, comprising: Blades, for mowing grass; a prime mover for driving the blade to rotate; a chassis for assembling said prime mover; A limiting device for limiting the rotation of the blade; Wherein, the blade can rotate relative to the chassis; The limiting device includes: a limiter, movably connected to the chassis; The limiting member has at least a first position and a second position relative to the chassis; When the limiting member is at the first position, the limiting member can stop on the rotation path of the blade; When the limiting member is located at the second position, the limiting member withdraws from the rotation path of the blade. 2. The mower according to claim 1, characterized in that: The limiting member is rotatably connected to the chassis. 3. The lawnmower according to claim 1, characterized in that: The limiter is rotatably connected to the edge of the chassis, and the limiter includes: The limiting part is used for contacting with the blade; When the limiting member is located at the first position, the limiting part is located inside the edge of the chassis; When the limiting member is located at the second position, the limiting portion is located outside the edge of the chassis. 4. The lawn mower according to claim 1, characterized in that: The limiter is rotatably connected to the edge of the chassis, and the limiter includes: A rotating shaft part is used to form a rotational connection with the chassis; The rotating shaft part is arranged on the outer side of the edge of the chassis. 5. The lawnmower according to claim 4, characterized in that: The limiting parts include: The limiting part is used for contacting with the blade; When the limiting member is located at the first position, the limiting part is located inside the edge of the chassis; When the limiting member is located at the second position, the limiting portion is located outside the edge of the chassis. 6. The lawnmower according to claim 5, characterized in that: The limiting parts include: a connecting part, used to connect the limiting part and the rotating shaft part; When the limiting member is at the first position, the connecting portion is in contact with the chassis. 7. The lawn mower according to claim 1, characterized in that: The limiting device also includes: The biasing member is used to keep the limiting member at the first position or the second position. 8. The lawnmower of claim 7, wherein: The limiter is rotatably connected to the edge of the chassis, and the limiter includes: The limiting part is used for contacting with the blade; A rotating shaft part is used to form a rotational connection with the chassis; a connecting part, used to connect the limiting part and the rotating shaft part; The rotating shaft part is arranged on the outer side of the edge of the chassis; When the limiting member is located at the first position, the limiting part is located inside the edge of the chassis; When the limiting member is located at the second position, the limiting portion is located outside the edge of the chassis; The biasing member is a spring; One end of the spring is connected to the chassis, and the other end is connected to the connecting portion. 9. The lawn mower of claim 1, wherein: The limiting member is formed with: a first limiting surface and a second limiting surface; The first limiting surface stops the clockwise rotation of the blade; The second limiting surface stops the rotation of the blade in the counterclockwise direction. 10. The lawn mower of claim 9, wherein: The first limiting surface is opposite to the second limiting surface, The distance between the first limiting surface and the second limiting surface is greater than or equal to the width of the blade.