CN209882565U

CN209882565U - Mower with conveniently-replaced cutter head

Info

Publication number: CN209882565U
Application number: CN201920255231.5U
Authority: CN
Inventors: 李会芹; 吴永香; 付志豪
Original assignee: Huanghe Science and Technology College
Current assignee: Huanghe Science and Technology College
Priority date: 2019-02-28
Filing date: 2019-02-28
Publication date: 2020-01-03
Anticipated expiration: 2029-02-28

Abstract

The utility model discloses a lawn mower convenient to change tool bit, including motor cover and elasticity case, the top fixedly connected with motor of motor cover inner wall, and the output shaft of motor passes through shaft coupling fixedly connected with axis of rotation, the bottom fixedly connected with of motor cover keeps off the grass cover, the bottom of axis of rotation runs through the inside that keeps off the grass cover and extend to keeping off the grass cover, the axis of rotation extends to the inside one end fixedly connected with connecting block that keeps off the grass cover, it is connected with first threaded rod to rotate between the both sides of elasticity incasement wall, and the surface of first threaded rod is provided with positive and negative screw, the utility model relates to a weeding equipment technical field. This lawn mower convenient to change tool bit, simple structure, convenient to use has replaced the fixed mode of screw nut in the past, becomes the fixture block and fixes the tool bit, has made things convenient for the change and the maintenance of tool bit, avoids taking place because the problem that screw nut corrosion can't change the tool bit, lets people more convenient with getting up.

Description

Mower with conveniently-replaced cutter head

Technical Field

The utility model relates to a weeding equipment technical field specifically is the lawn mower of change tool bit for being convenient for.

Background

The mower is a mechanical tool for trimming lawns, vegetations and the like, and comprises a cutter head, an engine, a traveling wheel, a traveling mechanism, blades, a handrail and a control part, wherein the cutter head is arranged on the traveling wheel, the engine is arranged on the cutter head, the blades are arranged on an output shaft of the engine, the blades are greatly improved in speed by utilizing the high-speed rotation of the engine, the operation time of weeder is saved, a large amount of manpower resources are reduced, the mower plays an extremely important role in developing agricultural mechanization, improving the working efficiency and improving the agricultural production efficiency in our agricultural kingdom, and the invention is a great progress of human civilization.

Lawn mower is a very common machine in the life, and it is very convenient to use, but the tool bit of present most lawn mowers all is screw nut fixed, and the change of very being not convenient for even the screw nut corrosion leads to the condition that the tool bit can't be changed also to take place occasionally.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a lawn mower convenient to change tool bit has solved the tool bit of most of lawn mowers and is not convenient for change the problem that the fixed local corrosion of tool bit can't be changed even.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the mower convenient for replacing the cutter head comprises a motor cover and an elastic box, wherein the top of the inner wall of the motor cover is fixedly connected with a motor, an output shaft of the motor is fixedly connected with a rotating shaft through a coupler, the bottom of the motor cover is fixedly connected with a grass blocking cover, the bottom end of the rotating shaft penetrates through the grass blocking cover and extends to the inside of the grass blocking cover, one end of the rotating shaft extending to the inside of the grass blocking cover is fixedly connected with a connecting block, a first threaded rod is rotatably connected between the two sides of the inner wall of the elastic box, the surface of the first threaded rod is provided with positive and negative threads, the right side of the first threaded rod penetrates through the elastic box and extends to the outside of the elastic box, one end of the first threaded rod extending to the outside of the elastic box is fixedly connected with a handle, the two sides of the first threaded rod, which are positioned on the, two the equal fixed connection dead lever in top of bracing piece, and fixedly connected with first spring between the relative one side of two dead levers, the one end of dead lever runs through the elasticity case and extends to the inside of connecting block.

Preferably, the top fixedly connected with of connecting block inner wall is fixed the case, and the bottom of fixed case runs through there is the elasticity pole, fixedly connected with second spring between the one end that the elasticity pole is located fixed incasement portion and the top of fixed incasement wall, the one end fixedly connected with stripper plate that the elasticity pole is located fixed incasement portion, and the bottom of stripper plate and the top contact of elasticity case.

Preferably, the bottom of the elastic box is fixedly connected with a cutter head.

Preferably, the bottom on the right side of the motor cover is fixedly connected with a connecting rod, and one end, far away from the motor cover, of the connecting rod is fixedly connected with a rotary drum.

Preferably, the inner wall of the rotating cylinder is in threaded connection with a second threaded rod, and the top of the rotating cylinder is fixedly connected with a handrail.

Preferably, the surface of the second threaded rod, which is positioned outside the drum, is fixedly connected with an anti-slip sleeve.

Advantageous effects

The utility model provides a lawn mower convenient to change tool bit. The method has the following beneficial effects:

(1) the mower convenient for replacing the cutter head is characterized in that a motor is fixedly connected to the top of the inner wall of a motor cover, an output shaft of the motor is fixedly connected with a rotating shaft through a coupler, the bottom of the motor cover is fixedly connected with a grass blocking cover, the bottom end of the rotating shaft penetrates through the grass blocking cover and extends into the grass blocking cover, one end of the rotating shaft extending into the grass blocking cover is fixedly connected with a connecting block, a first threaded rod is rotatably connected between two sides of the inner wall of an elastic box, the surface of the first threaded rod is provided with positive and negative threads, the right side of the first threaded rod penetrates through the elastic box and extends to the outside of the elastic box, one end of the first threaded rod extending to the outside of the elastic box is fixedly connected with a handle, two sides of the first threaded rod, which are positioned on the inner surface of the elastic box, are both in threaded, and the first spring of fixedly connected with between the relative one side of two dead levers, the one end of dead lever runs through the inside that the elasticity case just extended to the connecting block, has replaced the fixed mode of screw nut in the past, becomes the fixture block and fixes the tool bit, has made things convenient for the change and the maintenance of tool bit, avoids taking place because the problem that screw nut corrosion can't change the tool bit, and it is more convenient to let people use.

(2) This lawn mower convenient to change tool bit, bottom fixedly connected with connecting rod through motor cover right side, and the one end fixedly connected with rotary drum that the motor cover was kept away from to the connecting rod, the inner wall threaded connection of rotary drum has the second threaded rod, and the top fixedly connected with handrail of rotary drum, makes things convenient for the worker people to adjust the length of second threaded rod in the use, holds the handrail simultaneously when using and lets weed more convenient going on, has improved the travelling comfort that uses the lawn mower.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a partially enlarged view of a portion a in fig. 1 according to the present invention.

In the figure: the device comprises a motor cover 1, an elastic box 2, a motor 3, a rotating shaft 4, a grass blocking cover 5, a connecting block 6, a first threaded rod 7, a handle 8, a sleeve 9, a supporting rod 10, a fixing rod 11, a first spring 12, a fixing box 13, an elastic rod 14, a second spring 15, a squeezing plate 16, a tool bit 17, a connecting rod 18, a rotating drum 19, a second threaded rod 20, a handrail 21 and an antiskid sleeve 22.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a mower convenient for replacing a cutter head comprises a motor cover 1 and an elastic box 2, wherein the top of the inner wall of the motor cover 1 is fixedly connected with a motor 3, two sides of the motor cover 1 are provided with ventilation holes, the motor 3 is convenient to dissipate heat, an output shaft of the motor 3 is fixedly connected with a rotating shaft 4 through a coupler, the bottom of the motor cover 1 is fixedly connected with a grass blocking cover 5, the bottom end of the rotating shaft 4 penetrates through the grass blocking cover 5 and extends to the inside of the grass blocking cover 5, one end of the rotating shaft 4 extending to the inside of the grass blocking cover 5 is fixedly connected with a connecting block 6, a first threaded rod 7 is rotatably connected between two sides of the inner wall of the elastic box 2, the surface of the first threaded rod 7 is provided with positive and negative threads, the right side of the first threaded rod 7 penetrates through the elastic box 2 and extends to the outside of the elastic box 2, one end of the first threaded rod 7 extending to the outside of the elastic box 2, the top parts of the two sleeves 9 are fixedly connected with supporting rods 10, the top parts of the two supporting rods 10 are fixedly connected with fixing rods 11, a first spring 12 is fixedly connected between one opposite sides of the two fixing rods 11, one end of each fixing rod 11 penetrates through the elastic box 2 and extends into the connecting block 6, clamping grooves matched with the fixing rods 11 are formed in two sides of the inner wall of the connecting block 6, a tool bit 17 is fixed through the fixing rods 11, the top part of the inner wall of the connecting block 6 is fixedly connected with a fixing box 13, an elastic rod 14 penetrates through the bottom part of the fixing box 13, a second spring 15 is fixedly connected between one end of the elastic rod 14, which is positioned in the fixing box 13, and the top part of the inner wall of the fixing box 13, a squeezing plate 16 is fixedly connected to one end of the elastic rod 14, which is positioned outside the fixing box 13, the bottom part of the squeezing plate 16 is contacted with the top part of the elastic box 2, improved stability, the bottom fixedly connected with tool bit 17 of elasticity case 2, the bottom fixedly connected with connecting rod 18 on motor cover 1 right side, and connecting rod 18 keeps away from the one end fixedly connected with rotary drum 19 of motor cover 1, the inner wall threaded connection of rotary drum 19 has second threaded rod 20, and the top fixedly connected with handrail 21 of rotary drum 19, second threaded rod 20 is located the outside fixed surface of rotary drum 19 and is connected with antiskid sleeve 22, improve frictional force, prevent to take off hand at the in-process second threaded rod 20 of mowing.

During operation, when the tool bit 17 needs to be replaced, the handle 8 is held to rotate, the first threaded rod 7 drives the two sleeves 9 on the surface to move relatively, the two fixing rods 11 are driven to move relatively and extrude the first spring 12 through the two supporting rods 10 respectively, the fixing rods 11 are moved out of the clamping grooves in the connecting block 6 at the moment, then the elastic box 2 and the tool bit 17 are taken down, a new elastic box 2 and a new tool bit 17 are replaced, the fixing rods 11 are driven to fix the elastic box 2 and the tool bit 17 by rotating the first threaded rod 7, meanwhile, the top of the elastic box 2 is extruded to the second spring 15 through the extrusion plate 16 and the elastic rod 14, and meanwhile, the elastic force of the second spring 15 is further fixed to the elastic box 2.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Lawn mower convenient to change tool bit, including motor cover (1) and elasticity case (2), its characterized in that: the top of the inner wall of the motor cover (1) is fixedly connected with a motor (3), an output shaft of the motor (3) is fixedly connected with a rotating shaft (4) through a coupler, the bottom of the motor cover (1) is fixedly connected with a grass blocking cover (5), the bottom end of the rotating shaft (4) penetrates through the grass blocking cover (5) and extends into the grass blocking cover (5), one end of the rotating shaft (4) extends into the grass blocking cover (5) is fixedly connected with a connecting block (6), a first threaded rod (7) is rotatably connected between two sides of the inner wall of the elastic box (2), the surface of the first threaded rod (7) is provided with positive and negative threads, the right side of the first threaded rod (7) penetrates through the elastic box (2) and extends to the outside of the elastic box (2), and the first threaded rod (7) extends to one end of the outside of the elastic box (2) and is fixedly connected with a handle (8, the utility model discloses a connecting piece, including elastic box (2), first threaded rod (7), two equal threaded connection in both sides that are located elastic box (2) internal surface have sleeve (9), and the equal fixedly connected with bracing piece (10) in top of two sleeve (9), two the equal fixed connection dead lever (11) in top of bracing piece (10), and the first spring of fixedly connected with (12) between two relative one sides of dead lever (11), the one end of dead lever (11) runs through elastic box (2) and extends to the inside of connecting block (6).

2. The mower of claim 1, further comprising: the top fixedly connected with of connecting block (6) inner wall is fixed case (13), and the bottom of fixed case (13) runs through there is elastic rod (14), elastic rod (14) are located fixedly connected with second spring (15) between the top of the inside one end of fixed case (13) and fixed case (13) inner wall, elastic rod (14) are located the outside one end fixedly connected with stripper plate (16) of fixed case (13), and the top contact of the bottom of stripper plate (16) and elastic case (2).

3. The mower of claim 1, further comprising: the bottom of the elastic box (2) is fixedly connected with a tool bit (17).

4. The mower of claim 1, further comprising: the bottom on the right side of the motor cover (1) is fixedly connected with a connecting rod (18), and one end, far away from the motor cover (1), of the connecting rod (18) is fixedly connected with a rotary drum (19).

5. The mower of claim 4, wherein said cutter head is replaceable by: the inner wall of the rotary drum (19) is in threaded connection with a second threaded rod (20), and the top of the rotary drum (19) is fixedly connected with a handrail (21).

6. The mower of claim 5, wherein said cutter head is replaceable by: the surface of the second threaded rod (20) positioned outside the rotary drum (19) is fixedly connected with an anti-skid sleeve (22).