Lawn mower

Abstract

The application provides a mower, which comprises a cutter head, a motor for driving the cutter head to rotate, and a connecting piece connecting the motor and the cutter head, the cutter head has a matching surface assembled with the connecting piece, the connecting piece has a first mounting surface and a second mounting surface abutting against the matching surface of the cutter head, when the matching surface abuts against the first mounting surface, a first distance exists between the cutter head and the motor, when the matching surface abuts against the second mounting surface, a second distance exists between the cutter head and the motor, and the first distance is not equal to the second distance. Compared with the prior art, the mower of the application can increase the mowing height within a certain range, the range of the mowing height can be increased without increasing the overall height of the mower, the overall height of the mower is relatively low, and the packaging cost and the transportation cost are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to a lawn mower. BACKGROUND

[0002] The lawn mower is a common garden tool. Different types of lawns require different heights of grass to be maintained. Therefore, increasing the adjustment range of the cutting height can provide users with more choices and make the lawn mower suitable for more occasions.

[0003] Currently, the cutting height is basically within a unified adjustment range. If the cutting height is to be increased, the overall height of the lawn mower needs to be increased, which will increase the cost in many aspects: 1. The overall height of the lawn mower is high, which increases the height of the packaging box and increases the packaging cost; 2. The increase in the height of the packaging box reduces the number of transportation containers and increases the transportation cost; 3. The high overall height of the lawn mower increases the material cost of manufacturing the lawn mower.

[0004] Therefore, it is necessary to improve the existing lawn mower to solve the above problems. SUMMARY

[0005] The present application relates to a lawn mower.

[0006] To achieve the above-mentioned purpose, the present application provides a lawn mower, which comprises a cutter head, a motor for driving the cutter head to rotate, and a connecting piece connecting the motor and the cutter head. The cutter head has a matching surface assembled with the connecting piece. The connecting piece has a first mounting surface and a second mounting surface abutting with the matching surface of the cutter head. When the matching surface abuts with the first mounting surface, there is a first distance between the cutter head and the motor. When the matching surface abuts with the second mounting surface, there is a second distance between the cutter head and the motor. The first distance is not equal to the second distance.

[0007] As a further improvement of the present application, the area of the matching surface is less than or equal to the area of the first mounting surface, and the area of the first mounting surface is equal to the area of the second mounting surface.

[0008] As a further improvement of the present application, the connecting piece comprises a body portion assembled with the motor and a protruding column vertically extending downward from the bottom end of the body portion. The first mounting surface is located at the bottom end of the protruding column, and the second mounting surface is located at the bottom end of the body portion, so that a height difference is formed between the first mounting surface and the second mounting surface.

[0009] As a further improvement of the present application, the protruding column is provided with three protruding columns uniformly distributed at the bottom end of the body portion, and the first mounting surface is composed of the lower surfaces of the three protruding columns.

[0010] As a further improvement of the present application, the cutter head comprises a cutter head base body and a boss protruding from the middle of the cutter head base body to one side, the matching surface is formed inside the boss and located at the top of the cutter head base body, and the cutter head is provided with a matching hole through which the fixing member passes to assemble and fix the cutter head with the connecting member.

[0011] As a further improvement of the present application, the bottom of the boss is provided with a first mounting hole concave upward, and when the matching surface of the cutter head abuts against the first mounting surface, the fixing member passes through the matching hole and the first mounting hole to assemble and fix the cutter head with the connecting member.

[0012] As a further improvement of the present application, the second mounting surface is provided with a second mounting hole, and when the matching surface of the cutter head abuts against the second mounting surface, the fixing member passes through the matching hole and the second mounting hole to assemble and fix the cutter head with the connecting member.

[0013] As a further improvement of the present application, the side of the cutter head base body away from the boss is provided with a blade mounting portion, and the blade mounting portion is provided with a plurality of blade mounting portions and is uniformly distributed on the cutter head base body.

[0014] As a further improvement of the present application, the mower further comprises a blade rotatably mounted on the blade mounting portion.

[0015] As a further improvement of the present application, the mower further comprises a machine body, and the motor is accommodated in the machine body, and the cutter head is exposed at the bottom of the machine body.

[0016] The mower of the present application has the beneficial effect that the connecting member is provided with the first mounting surface and the second mounting surface abutting against the matching surface of the cutter head, so that the matching surface can abut against one of the first mounting surface and the second mounting surface to fix the cutter head with the connecting member, and at the same time, the distance between the cutter head and the motor when the matching surface abuts against the first mounting surface is not equal to the distance between the cutter head and the motor when the matching surface abuts against the second mounting surface, so that the mowing height can be increased within a certain range. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a perspective view of the mower of the present application.

[0018] Figure 2 is Figure 1 is an exploded view of the motor, the connecting member and the cutter head in the mower shown in

[0019] Figure 3 is Figure 2 is a local enlarged view of the circular portion in

[0020] Figure 4 isFigure 2 Cross-sectional view of the middle cutter disc when mounted to the first mounting surface of the connector.

[0021] Figure 5 yes Figure 2 Cross-sectional view of the middle cutter disc when mounted to the second mounting surface of the connector. DETAILED DESCRIPTION

[0022] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] The present invention discloses a lawn mower 100 for cutting lawns. Lawns have various types of grass, each requiring different heights. Adjusting the cutting height from one type of lawn to another can be time-consuming, and even more so, the required range cannot be reached due to travel limitations. Therefore, the present invention provides a lawn mower 100 capable of operating within a range of different cutting heights.

[0024] like Figures 1 to 5 As shown, the lawn mower 100 includes a cutter disc 1, a motor 2 that drives the cutter disc 1, a connector 3 connecting the motor 2 and the cutter disc 1, and a body 4 that houses the motor 2. The body 4 includes a frame 41, wheels 42 that support the frame 41, and a housing 43 that covers the frame 41. The motor 2 is housed within the frame 41, and the cutter disc 1 is exposed at the bottom of the frame 41. Because the structures of the frame 41, wheels 42, and housing 43 can adopt existing technical solutions, they are not described in detail here.

[0025] The cutterhead 1 has a mating surface 10 for assembly with the connector 3. The connector 3 has a first mounting surface 301 and a second mounting surface 302 that abut against the mating surface 10 of the cutterhead 1. The mating surface 10 abuts against one of the first mounting surface 301 and the second mounting surface 302, thereby achieving assembly and fixation of the cutterhead 1 and the connector 3. In this embodiment, the area of ​​the mating surface 10 is less than or equal to the area of ​​the first mounting surface 301, and the area of ​​the first mounting surface 301 is equal to the area of ​​the second mounting surface 302. In this way, when the mating surface 10 is mated with the first mounting surface 301 or the second mounting surface 302, there will be no interference, resulting in difficulty in installation. Of course, in other embodiments, the areas of the mating surface 10, the first mounting surface 301, and the second mounting surface 302 can be designed according to actual needs and are not limited here.

[0026] The cutter head 1 comprises a cutter head base 11 and a boss 12 protruding from the middle of the cutter head base 11 to one side, the adapter surface 10 is formed inside the boss 12 and located on the top of the cutter head base 11, and an adapter hole (not numbered) is formed in the cutter head 1, which penetrates the cutter head base 11 and the boss 12, so that the fixing member 5 passes through the adapter hole to assemble and fix the cutter head 1 and the connecting member 3. The side of the cutter head base 11 away from the boss 12 is provided with a blade mounting portion 13, and the blade mounting portion 13 is provided with a plurality of blade mounting portions 13 which are uniformly distributed on the cutter head base 11. The mower 100 further comprises a blade 6 which is freely rotatably mounted on the blade mounting portion 13 to perform the mowing action. The blade mounting portion 13 is provided with a blade mounting hole (not shown), and a screw, a bolt, a pin or a rivet cooperates with the blade mounting hole to position the blade 6 on the blade mounting portion 13.

[0027] The cutter head 1 is driven to rotate by the motor 2 and drives the blade 6 mounted thereon to work, and the cutter head 1 is a disc-shaped member. The shape of the cutter head 1 is preferably circular, and the circular cutter head 1 rotates stably due to its uniform mass distribution. Of course, it can also be triangular, square, etc. according to actual needs, which is not limited here.

[0028] The motor 2 is used to provide power for the rotation of the cutter head 1, and the motor 2 has a motor shaft 21 for outputting power. One end of the connecting member 3 is linked with the motor shaft 21, and the other end is connected with the cutter head 1, which is used to transmit the power output by the motor 2 to the cutter head 1, and then drive the cutter head 1 to rotate.

[0029] The connecting member 3 comprises a body portion 31 assembled with the motor 2 and a protruding column 32 vertically extending downward from the bottom end of the body portion 31, the first mounting surface 301 is located at the bottom end of the protruding column 32, and the second mounting surface 302 is located at the bottom end of the body portion 31, so that a height difference is formed between the first mounting surface 301 and the second mounting surface 302, so that when the adapter surface 10 abuts against the first mounting surface 301, a first distance exists between the cutter head 1 and the motor 2, and when the adapter surface 10 abuts against the second mounting surface 302, a second distance exists between the cutter head 1 and the motor 2, and the first distance is greater than the second distance. In other words, the first mounting surface 301 and the second mounting surface 302 have a spacing, and the existence of the spacing makes the first distance not equal to the second distance, which increases the mowing height within a certain range.

[0030] In this embodiment, the protruding column 32 is provided with three protruding columns 32 which are uniformly distributed at the bottom end of the body portion 31, and the first mounting surface 301 is composed of the lower surfaces of the three protruding columns 32; and the second mounting surface 302 is the lower surface of the body portion 31. The height difference between the first mounting surface 301 and the second mounting surface 302 is substantially equal to the height of the protruding column 32.

[0031] The bottom of each convex column 32 is provided with a first mounting hole 321 concave upward, so that when the mating surface 10 of the cutter head 1 abuts against the first mounting surface 301, the cutter head 1 and the connecting piece 3 can be assembled and fixed by using the fixing piece 5 to pass through the mating hole and the first mounting hole 321. The second mounting surface 302 is provided with a second mounting hole 311, so that when the mating surface 10 of the cutter head 1 abuts against the second mounting surface 302, the cutter head 1 and the connecting piece 3 can be assembled and fixed by using the fixing piece 5 to pass through the mating hole and the second mounting hole 311. In the embodiment, the fixing piece 5 is preferably a screw, and the mating hole, the first mounting hole 321 and the second mounting hole 311 correspond to the screw hole.

[0032] As shown in Figure 4 When the mating surface 10 of the cutter head 1 abuts against the first mounting surface 301 of the connecting piece 3, the cutter head 1 and the connecting piece 3 are assembled and fixed by using three fixing pieces 5 to pass through the corresponding mating hole and first mounting hole 321, at this time, the first distance between the lower surface of the motor 2 and the upper surface of the cutter head base body 11 (about equal to the height of the convex column 32) is large, and the mowing height is high.

[0033] As shown in Figure 5 When the mating surface 10 of the cutter head 1 abuts against the second mounting surface 302 of the connecting piece 3, the cutter head 1 and the connecting piece 3 are also assembled and fixed by using three fixing pieces 5 to pass through the corresponding mating hole and second mounting hole 311, at this time, the three convex columns 32 all pass through the cutter head base body 11 to reach below the cutter head base body 11, the second distance between the lower surface of the motor 2 and the upper surface of the cutter head base body 11 (about equal to zero) is small, and the mowing height is low.

[0034] Therefore, the application provides a design that can increase or reduce the height of the cutter head 1, by adding a connecting piece 3 between the motor 2 and the cutter head 1, the connecting piece 3 has two mounting surfaces that can be used to fix the cutter head 1, and there is a certain height difference between the two mounting surfaces, which is the height difference of the mowing height, so that when the cutter head 1 is fixed with different mounting surfaces, the height position of the cutter head 1 is different, and a certain range of mowing height is increased.

[0035] In summary, the mower 100 of the present application sets the connecting piece 3 with the first mounting surface 301 and the second mounting surface 302 abutting the mating surface 10 of the cutter head 1, so that the mating surface 10 can abut one of the first mounting surface 301 and the second mounting surface 302, realizing the fixation of the cutter head 1 and the connecting piece 3, and at the same time, the distance between the cutter head 1 and the motor 2 when the mating surface 10 abuts the first mounting surface 301 is greater than the distance between the cutter head 1 and the motor 2 when the mating surface 10 abuts the second mounting surface 302, increasing the mowing height within a certain range. Compared with the prior art, the mower 100 of the present application does not need to increase the mowing height range by increasing the overall height of the mower, and the overall height of the mower is relatively low, reducing the packaging cost and transportation cost.

[0036] The above examples are only used to illustrate the technical solutions of the present application and not to limit it. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the present application.

Claims

1. A mower comprising a cutterhead, a motor driving the cutterhead in rotation, and a connection connecting the motor and the cutterhead, characterized in that: The cutter head has a matching surface assembled with the connecting piece, the connecting piece has a first mounting surface and a second mounting surface abutting the matching surface of the cutter head, when the matching surface abuts the first mounting surface, the first distance exists between the cutter head and the motor, when the matching surface abuts the second mounting surface, the second distance exists between the cutter head and the motor, the first distance is not equal to the second distance; The connecting piece includes a body part assembled with the motor and a protruding column vertically extending downward from the bottom end of the body part, the first mounting surface is located at the bottom end of the protruding column, the second mounting surface is located at the bottom end of the body part, so that the height difference is formed between the first mounting surface and the second mounting surface, the cutter head includes a cutter head base and a boss protruding from the middle part of the cutter head base to one side, the matching surface is formed inside the boss and located at the top of the cutter head base, the cutter head is provided with a matching hole penetrating the cutter head base and the boss, the bottom of the protruding column is provided with a first mounting hole recessed upward, when the matching surface of the cutter head abuts the first mounting surface, the fixing member passes through the matching hole and the first mounting hole, so that the cutter head and the connecting piece are assembled and fixed; the second mounting hole is formed in the second mounting surface, when the matching surface of the cutter head abuts the second mounting surface, the fixing member passes through the matching hole and the second mounting hole, so that the cutter head and the connecting piece are assembled and fixed.

2. The lawnmower as claimed in claim 1, characterized in that: The area of the matching surface is less than or equal to the area of the first mounting surface, the area of the first mounting surface is equal to the area of the second mounting surface.

3. The lawnmower as claimed in claim 1, characterized in that: The protruding column is provided with three and uniformly distributed at the bottom end of the body part, the first mounting surface is composed of the lower surfaces of the three protruding columns.

4. The lawnmower as claimed in claim 1, characterized in that: The side of the cutter head base away from the boss is provided with a blade mounting part, the blade mounting part is provided with a plurality of and uniformly distributed on the cutter head base.

5. The lawnmower as claimed in claim 4, characterized in that: The lawn mower further includes a blade, the blade is rotatably mounted on the blade mounting part.

6. The lawnmower as claimed in claim 1, characterized in that: The lawn mower further includes a body, the motor is accommodated in the body, and the cutter head is exposed at the bottom of the body. The lawn mower further includes a body, the motor is accommodated in the body, and the cutter head is exposed at the bottom of the body.

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