CN217957815U

CN217957815U - Lawn mower cutting diameter adjustment mechanism

Info

Publication number: CN217957815U
Application number: CN202221900434.3U
Authority: CN
Inventors: 涂洪广
Original assignee: Hubei Shuangteng Construction Engineering Co ltd
Current assignee: Hubei Shuangteng Construction Engineering Co ltd
Priority date: 2022-07-22
Filing date: 2022-07-22
Publication date: 2022-12-06
Anticipated expiration: 2032-07-22

Abstract

The utility model discloses a lawn mower cutting diameter adjustment mechanism, including casing and the blade of a plurality of diameter variation in size, the bottom outer wall middle part of casing is connected with the pivot through the bearing, the inside of casing is provided with power component, the external fixation of pivot is provided with spacing dish, and the outside of pivot is close to the fixed a plurality of connecting block that is provided with the equidistance and distributes of bottom department, leave the clearance between connecting block and the spacing dish, the thickness and the clearance of blade are the same, the inside of connecting block is provided with the mounting groove, the both sides inner wall of mounting groove all is provided with the mounting hole, it has spacing post to peg graft in the inside of mounting hole. The utility model discloses a be provided with the blade of a plurality of diameter variation in size, can adjust the diameter of cutting, then the blade passes through parts such as connecting block, spread groove, spring, movable block, spacing post, spacing hole and connecting hole, the installation and the dismantlement of blade of can being convenient for, labour saving and time saving, it is more convenient.

Description

Lawn mower cutting diameter adjustment mechanism

Technical Field

The utility model relates to a lawn mower technical field especially relates to a lawn mower cutting diameter adjustment mechanism.

Background

Lawn mowers are also called lawn mowers, lawnmowers, lawn trimmers, and mowers. The lawn trimmer is a mechanical tool for trimming lawn, vegetation and other vegetation, and consists of cutter head, engine, walking wheels, walking mechanism, blades, handrail and control part. The cutter head is arranged on the travelling wheel, the engine is arranged on the cutter head, the blade is arranged on the output shaft of the engine, the speed of the blade is greatly increased by utilizing the high-speed rotation of the engine, the operation time of weeding workers is saved, a large amount of manpower resources are reduced, and the mower is frequently used in life.

If current lawn mower wants to adjust cutting diameter, just need change the blade of different diameters to use according to actual conditions, but current blade generally all installs through the bolt, just so be not convenient for install and dismantle, waste time and energy, it is inconvenient relatively.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lawn mower cutting diameter adjustment mechanism to solve the problem that proposes among the above-mentioned background art.

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

the utility model provides a lawn mower cutting diameter adjustment mechanism, includes casing and the different blade of a plurality of diameter variation in size, the bottom outer wall middle part of casing is connected with the pivot through the bearing, the inside of casing is provided with power unit, the external fixation of pivot is provided with spacing dish, and the outside of pivot is close to bottom department fixed a plurality of connecting block that is provided with the equidistance and distributes, leave the clearance between connecting block and the spacing dish, the thickness and the clearance of blade are the same, the inside of connecting block is provided with the mounting groove, the both sides inner wall of mounting groove all is provided with the mounting hole, peg graft in the inside of mounting hole and have spacing post, the external fixation of spacing post is provided with the movable block, the common rigid coupling of one side outer wall of movable block and one side inner wall of mounting groove has the spring, one side outer wall of spacing dish is provided with the connecting hole that corresponds with spacing post, a plurality of the common rigid coupling of one end of spacing post has the connecting plate, one side outer wall middle part of blade is provided with the circular slot, and one side outer wall of blade is provided with the spread groove that the equidistance distributes and communicate with the circular slot, spread groove and connecting block phase-match, and one side outer wall of blade is provided with the spacing hole that the equidistance distributes and just matches with spacing post.

Furthermore, the power unit comprises a motor fixedly connected to the inner wall of the bottom of the shell, and one end of an output shaft of the motor is fixedly connected with the top end of the rotating shaft.

Furthermore, a connecting rod is fixedly arranged at the upper end of the outer wall of one side of the shell, and a handle is fixedly arranged outside the connecting rod.

Furthermore, a protective cover is fixedly arranged on the outer wall of the bottom of the shell.

Further, a magnet block is fixedly arranged on the inner wall of one side of the connecting hole, and the limiting column is made of iron.

Furthermore, the number of the connecting blocks and the connecting grooves is four, and the connecting plates are of a cross structure.

Furthermore, a pull rod is fixedly arranged in the middle of the outer wall of one side of the connecting plate, and a pull block is fixedly arranged at one end of the pull rod.

Advantageous effects

Compared with the prior art, the utility model, the advantage that has does:

1. this be used for lawn mower cutting diameter adjustment mechanism through being provided with the blade of a plurality of diameter variation in size, can adjust the diameter of cutting, then the blade passes through parts such as connecting block, spread groove, spring, movable block, spacing post, spacing hole and connecting hole, the installation and the dismantlement of blade of can being convenient for, labour saving and time saving, it is more convenient.

2. This be used for lawn mower cutting diameter adjustment mechanism, through being provided with the magnet piece, it can adsorb the spacing post of iron material, can improve the stability that spacing post inserted in the connecting hole like this greatly, and then improve the stability of blade installation.

Drawings

Fig. 1 is a schematic front view of a cutting diameter adjusting mechanism of a lawn mower according to the present invention;

fig. 2 is a schematic structural view of a limiting disc of a cutting diameter adjusting mechanism of the lawn mower provided by the present invention;

fig. 3 is a schematic structural view of a limiting post of a cutting diameter adjusting mechanism of a lawn mower according to the present invention;

fig. 4 is an enlarged schematic structural view of a cutting diameter adjusting mechanism of the lawn mower according to the present invention at a position a;

fig. 5 is a schematic structural view of a blade of the cutting diameter adjusting mechanism of the lawn mower according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a housing; 2. a motor; 3. a protective cover; 4. a rotating shaft; 5. a connecting rod; 6. a limiting disc; 7. connecting blocks; 8. a connecting plate; 9. pulling the block; 10. a spring; 11. a moving block; 12. a magnet block; 13. a blade; 14. a circular groove; 15. connecting grooves; 16. a limiting hole; 17. a limiting post.

Detailed Description

The invention will be further described with reference to specific embodiments shown in the drawings.

Referring to fig. 1-5, in an embodiment of the present invention, a lawn mower cutting diameter adjusting mechanism includes a housing 1 and a plurality of blades 13 with different diameters, so that different blades 13 can be replaced to cut different diameters, a rotating shaft 4 is connected to the middle portion of the outer wall of the bottom of the housing 1 through a bearing, a power component is disposed inside the housing 1, a limiting disc 6 is fixedly disposed outside the rotating shaft 4, a plurality of connecting blocks 7 are fixedly disposed near the bottom end of the rotating shaft 4, a gap 18 is left between the connecting blocks 7 and the limiting disc 6, the thickness and the gap 18 of the blades 13 are the same, a mounting groove 19 is disposed inside the connecting block 7, mounting holes are disposed on the inner walls of both sides of the mounting groove 19, a limiting column 17 is inserted inside the mounting hole, a moving block 11 is fixedly disposed outside the limiting column 17, the moving block 11 is also just embedded inside the mounting groove 19, a spring 10 is fixedly connected to the inner wall of one side of the mounting groove 19, the spring 10 is in a stretching state, under the action of the spring 10, the moving block 11 is located at the left end of the inner wall of the mounting groove 19, a side of the outer wall of the moving block 6 is provided with a connecting plate 15, a connecting groove 14, a connecting plate 14 is provided with a connecting hole 14, the connecting block, the connecting plate can be inserted into the connecting groove 14, the connecting groove 13, the connecting plate, and the connecting groove 14, the connecting plate can be stably connected to the connecting plate, the connecting groove, the connecting plate, the connecting groove 14, and the outer wall of one side of blade 13 is provided with spacing hole 16 that the equidistance distributes and matches with spacing post 17, when installing blade 13, insert circular slot 14 and spread groove 15 on blade 13 with pivot 4 and connecting block 7 correspondence, make blade 13 insert in the clearance 18 of connecting block 7 and spacing dish 6, then draw spacing post 17 through connecting plate 8, make it retract to mounting groove 19 in, then rotate blade 13, make connecting block 7 and spread groove 15 dislocation, spacing hole 16 this moment, connecting hole and spacing post 17 correspond, under the effect of spring 10 after the pine hand, spacing post 17 will insert in spacing hole 16 and the connecting hole in proper order, and then spacing blade 13 is carried out, accomplish the installation, otherwise can dismantle, and is simple and convenient.

The utility model discloses in, power unit includes rigid coupling in the motor 2 of 1 bottom inner wall of casing, the output shaft one end of motor 2 and the top fixed connection of pivot 4, and motor 2 drives pivot 4 and rotates.

The utility model discloses in, the fixed connecting rod 5 that is provided with in one side outer wall upper end of casing 1, the fixed handle 21 that is provided with in outside of connecting rod 5 is convenient for hold the lawn mower and is mow the operation.

The utility model discloses in, the fixed protection casing 3 that is provided with of bottom outer wall of casing 1 prevents that the grass that has cut from splashing everywhere.

The utility model discloses in, the fixed magnet piece 12 that is provided with of one side inner wall of connecting hole 20, the material of spacing post 17 is iron, and it can adsorb the spacing post 17 of iron material, can improve the stability that spacing post 17 inserted in the connecting hole greatly like this.

The utility model discloses in, the quantity of connecting block 7 and spread groove 15 is four, and connecting plate 8 is cruciform structure.

The utility model discloses in, the fixed pull rod that is provided with in one side outer wall middle part of connecting plate 8, the one end of pull rod is fixed to be provided with and draws piece 9, is convenient for stimulate connecting plate 8.

The utility model discloses a theory of operation is:

when the electric appliance elements are used, the electric appliance elements are externally connected with a power supply and a control switch, when the blade 13 is installed, firstly, the circular groove 14 and the connecting groove 15 in the blade 13 are inserted into the gap between the connecting block 7 and the limiting disc 6 correspondingly with the rotating shaft 4 and the connecting block 7, then the connecting plate 8 is pulled through the pulling block 9, the limiting column 17 is separated from the connecting hole to be retracted into the installing groove, then the blade 13 is rotated to enable the connecting block 7 and the connecting groove 15 to be staggered, at the moment, the limiting hole 16, the connecting hole and the limiting column 17 correspond to each other, after the hand is loosened, under the action of the spring 10, the limiting column 17 is sequentially inserted into the limiting hole 16 and the connecting hole, further, the blade 13 is limited to complete installation, when the cutting diameter needs to be adjusted, namely the installed blade 13 is disassembled and replaced, the connecting plate 8 is pulled through the pulling block 9 firstly, the limiting column 17 is separated from the connecting hole to be retracted into the installing groove, then the blade 13 is rotated to enable the circular groove 14 and the connecting groove 15 in the rotating shaft 4 and the connecting block 7 to correspond to the blade 13, and then the blade 13 can be installed on the same principle.

The above is only a preferred embodiment of the present invention, and it should be noted that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which will not affect the utility of the invention and the utility of the patent.

Claims

1. A lawn mower cutting diameter adjusting mechanism comprises a shell (1) and a plurality of blades (13) with different diameters, and is characterized in that the middle of the outer wall of the bottom of the shell (1) is connected with a rotating shaft (4) through a bearing, a power part is arranged inside the shell (1), a limiting disc (6) is fixedly arranged outside the rotating shaft (4), a plurality of connecting blocks (7) distributed equidistantly are fixedly arranged at the position, close to the bottom end, of the outside of the rotating shaft (4), a gap is reserved between each connecting block (7) and the corresponding limiting disc (6), the thickness and the gap of each blade (13) are the same, an installation groove is formed inside each connecting block (7), mounting holes are formed in the inner walls of the two sides of the installation groove, limiting columns (17) are inserted into the inside of each mounting hole, a moving block (11) is fixedly arranged outside the limiting columns (17), a spring (10) is fixedly connected to the outer wall of one side of each moving block (11) and the inner wall of one side of the installation groove, a connecting hole (10) is fixedly connected to the outer wall of one side of each limiting disc (6), connecting hole is provided with a connecting hole corresponding to each limiting column (17), a plurality of the limiting columns (17), a connecting plate (8) is fixedly connected to one side of the connecting plate (13), and a circular groove (14) is communicated with the blade (13), connecting groove (15) and connecting block (7) phase-match, and one side outer wall of blade (13) is provided with spacing hole (16) that the equidistance distributes and matches with spacing post (17).

2. The cutting diameter adjusting mechanism of the lawn mower as claimed in claim 1, wherein the power unit comprises a motor (2) fixedly connected to the inner wall of the bottom of the housing (1), and one end of an output shaft of the motor (2) is fixedly connected to the top end of the rotating shaft (4).

3. The cutting diameter adjusting mechanism of the lawn mower as claimed in claim 2, wherein a connecting rod (5) is fixedly arranged at the upper end of the outer wall of one side of the housing (1), and a handle is fixedly arranged outside the connecting rod (5).

4. A lawn mower cutting diameter adjusting mechanism as claimed in claim 3, characterized in that a protective cover (3) is fixedly arranged on the outer wall of the bottom of the housing (1).

5. The cutting diameter adjusting mechanism of the lawn mower as claimed in claim 1, wherein a magnet block (12) is fixedly arranged on an inner wall of one side of the connecting hole, and the limiting column (17) is made of iron.

6. A lawn mower cutting diameter adjusting mechanism as claimed in claim 1, wherein the number of the connecting blocks (7) and the connecting grooves (15) is four, and the connecting plate (8) has a cross-shaped structure.

7. The cutting diameter adjusting mechanism of the lawn mower as claimed in claim 6, wherein a pull rod is fixedly arranged in the middle of the outer wall of one side of the connecting plate (8), and a pull block (9) is fixedly arranged at one end of the pull rod.