Lawn mower

Abstract

The application discloses a mowing machine, comprising: a main machine comprising a mowing element for realizing the mowing function of the mowing machine and a chassis for accommodating at least part of the mowing element, the chassis forming an airflow channel, the airflow channel comprising a grass discharge port arranged at the rear end of the main machine; the grass discharging assembly is used for executing a grass discharging function; the grass discharging assembly comprises a main body used for guiding grass clippings discharged from the grass discharging opening; the connecting part is used for connecting the straw discharging assembly and the main machine; the main body comprises a top wall baffle and a side wall baffle, and the top wall baffle and the side wall baffle are connected so that the main body can be basically in an inverted-L shape. By the adoption of the technical scheme, the inverted-L-shaped straw discharging assembly is simple in structure, capable of saving material cost and easy to store.

Description

Technical Field

[0001] The present application relates to an electric machine, in particular to a lawn mower. Background Art

[0002] A lawn mower is also called a weed cutter, lawn mower, lawn trimmer, etc. A lawn mower is a mechanical tool used to trim lawns, vegetation, etc. It consists of a chassis, an engine, a running mechanism, a cutting piece, and an operating device. The chassis is equipped with an engine, and the output shaft of the engine is equipped with a cutting piece. The cutting piece uses the high-speed rotation of the engine to increase the speed a lot, saving the working time of the weeding workers and reducing a lot of human resources.

[0003] During the mowing process of the lawn mower, grass clippings will pass through the grass discharge channel and be discharged from the grass discharge port. In order to control the position where the grass clippings are discharged, a grass discharge assembly can be installed at the grass discharge port of the lawn mower.

[0004] This section provides background information related to the present application which is not necessarily prior art. Summary of the invention

[0005] One object of the present application is to solve or at least alleviate part or all of the above problems. To this end, one object of the present application is to provide an inverted L-shaped grass removal component with a simple structure, saving material cost and easy storage.

[0006] In order to achieve the above objectives, this application adopts the following technical solutions:

[0007] A lawn mower comprises: a main body, comprising a mowing element for realizing a mowing function of the lawn mower and a chassis for accommodating at least part of the mowing element, the chassis being formed with an air flow channel, the air flow channel comprising a grass discharge port arranged at the rear end of the main body; a grass discharge component for performing a grass discharge function;

[0008] The grass discharge assembly includes: a main body, used to guide grass clippings coming out of the grass discharge port; a connecting part, used to connect the grass discharge assembly with the main unit; the main body includes a top wall baffle and a side wall baffle, and the top wall baffle and the side wall baffle are connected so that the main body is basically in an inverted L shape.

[0009] In some embodiments, the top wall baffle includes a first end close to the grass discharge port and a second end opposite to the first end, the second end is farther away from the grass discharge port relative to the first end, and the width of the first end is greater than or equal to the width of the grass discharge port.

[0010] In some embodiments, the top wall baffle includes a first edge connected to the side wall baffle and a second edge opposite to the first edge, and the angle between the line connecting the two end points of the second edge and the plane extending in the front-to-back direction is greater than or equal to 0° and less than or equal to 15°.

[0011] In some embodiments, the top wall baffle includes a first edge connected to the side wall baffle and a second edge opposite to the first edge, and the angle between the line connecting the two end points of the second edge and the plane extending along the front-to-back direction is greater than or equal to 0° and less than or equal to 45°.

[0012] In some embodiments, an angle between a line connecting two end points of the second end and a plane extending in the left-right direction is greater than or equal to 5° and less than or equal to 10°.

[0013] In some embodiments, an angle between a line connecting two end points of the second end and a plane extending in the left-right direction is greater than or equal to 0° and less than or equal to 30°.

[0014] In some embodiments, the side wall baffle includes a first edge connected to the top wall baffle and a third edge opposite to the first edge, and the angle between the line connecting the two end points of the third edge and the plane extending along the front-to-back direction is greater than or equal to 0° and less than or equal to 15°.

[0015] In some embodiments, the side wall baffle includes a first edge connected to the top wall baffle and a third edge opposite to the first edge, and the angle between the line connecting the two end points of the third edge and the plane extending along the front-to-back direction is greater than or equal to 0° and less than or equal to 30°.

[0016] In some embodiments, the side wall baffle includes a third end close to the grass discharge port and a fourth end opposite to the third end, the fourth end is farther away from the grass discharge port relative to the third end, and the angle between the line connecting the two end points of the fourth end and the plane extending in the left and right directions is greater than or equal to 70° and less than or equal to 90°.

[0017] In some embodiments, the first edge is the right edge of the top wall baffle, and the side wall baffle is connected to the right edge of the top wall baffle so that the opening direction of the main body is leftward.

[0018] In some embodiments, the lawn mower further comprises a rear wall baffle, the rear wall baffle comprising a fourth edge connected to the top wall baffle, and a fifth edge connected to the side wall baffle.

[0019] In some embodiments, an angle between a line connecting two end points of the fourth edge and a plane extending in the left-right direction is greater than or equal to 5° and less than or equal to 10°.

[0020] In some embodiments, an angle between a line connecting two end points of the fifth edge and a plane extending in the left-right direction is greater than or equal to 90° and less than or equal to 120°.

[0021] In some embodiments, an angle formed by the first edge and the fourth edge is greater than or equal to 120° and less than or equal to 180°.

[0022] In some embodiments, the rear wall baffle is a quadrilateral, and further includes a sixth edge and a seventh edge, the sixth edge is opposite to the fourth edge, and the seventh edge is opposite to the fifth edge.

[0023] In some embodiments, the connecting part includes a first connecting part and a second connecting part; the first connecting part is located at the upper end of the main body and is used to connect to the housing axis of the host; the second connecting part is located at the lower end of the main body and is used to connect to the housing hole of the host.

[0024] In some embodiments, the lawn mower further includes a rear cover, which is connected to the main machine and is located above the grass discharge assembly and covers at least a portion of the top wall baffle.

[0025] In some embodiments, the lawn mower also includes a grass collecting basket; when the grass discharge assembly is not connected to the main unit, the grass collecting basket is connected to the housing shaft of the main unit through a third connecting part and a fourth connecting part; wherein the third connecting part and the fourth connecting part are both located at the upper end of the grass collecting basket.

[0026] In some embodiments, a lawn mower includes: a main body, including a mowing element for realizing a mowing function of the lawn mower and a chassis for accommodating at least part of the mowing element, the chassis is formed with an air flow channel, the air flow channel includes a grass discharge port arranged at the rear end of the main body; a grass discharge component for performing a grass discharge function;

[0027] The grass discharge assembly includes: a main body, used to guide grass clippings coming out of the grass discharge port; a connecting part, used to connect the grass discharge assembly with the main machine; the main body includes a top wall baffle and a side wall baffle, and one side of the side wall baffle and the top wall baffle includes a common edge so that there is an opening on the other side of the main body.

[0028] In some embodiments, the right side edge of the top wall baffle is connected to the side wall baffle so that the opening direction of the main body is to the left, and the right side edge is a common edge.

[0029] In some embodiments, the top wall baffle includes a first edge connected to the side wall baffle and a second edge opposite to the first edge, and the side wall baffle includes a first edge connected to the top wall baffle and a third edge opposite to the first edge; wherein the angle between the line connecting the two endpoints of the second edge and the plane extending in the front-to-back direction is greater than or equal to 0° and less than or equal to 45°, and the first edge is the common edge.

[0030] In some embodiments, the lawn mower further comprises a rear wall baffle, the rear wall baffle comprising a fourth edge connected to the top wall baffle, and a fifth edge connected to the side wall baffle.

[0031] In some embodiments, the lawn mower further includes a rear cover, which is connected to the main machine and is located above the grass discharge assembly and covers at least a portion of the top wall baffle.

[0032] The benefit of the present application is that the lawn mower of the present application can be connected to a grass discharge assembly at the grass discharge port at the rear end of the main body, and the grass discharge assembly body includes a top wall baffle and a side wall baffle connected to make the body in an inverted L shape, and the inverted L-shaped grass discharge assembly body structure is simple and saves material costs. In addition, when the grass discharge assembly is not connected to the lawn mower, it is easier to store. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a perspective view of a lawn mower according to an embodiment;

[0034] Figure 2 yes Figure 1 A three-dimensional diagram of the connection between the grass discharge port and the grass discharge assembly of the lawn mower;

[0035] Figure 3 yes Figure 1 A three-dimensional diagram of a grass discharge assembly of a lawn mower;

[0036] Figure 4 yes Figure 1 A side perspective view of a grass removal assembly of a lawn mower;

[0037] Figure 5 yes Figure 1 A rear perspective view of a grass discharge assembly of a lawn mower;

[0038] Figure 6 is a three-dimensional diagram of a grass discharge assembly of a lawn mower according to an embodiment;

[0039] Figure 7 yes Figure 6 A side perspective view of the grass removal assembly;

[0040] Figure 8 yes Figure 6 A rear perspective view of the grass removal assembly;

[0041] Fig. 9 is a perspective view of a lawn mower according to an embodiment including a rear wall baffle;

[0042] Fig.10 yes Fig. 9 A side perspective view of the grass removal assembly;

[0043] Fig.11 yes Fig. 9 A rear perspective view of the grass removal assembly;

[0044] Fig.12 yes Fig. 9 A top-down perspective view of the grass removal assembly;

[0045] Fig.13 is a three-dimensional view of a rear cover and a grass discharge assembly of a lawn mower according to an embodiment;

[0046] Fig.14 is a top view of a grass collecting basket of a lawn mower according to an embodiment;

[0047] Fig.15 is a perspective view of a handle height adjustment mechanism of a lawn mower according to an embodiment;

[0048] Fig.16 It is a stereoscopic diagram of a front height adjustment mechanism and a rear height adjustment mechanism of a lawn mower according to an embodiment. DETAILED DESCRIPTION

[0049] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above drawings.

[0050] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0051] In this application, the term "and / or" is a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects before and after are in an "and / or" relationship.

[0052] In the present application, the terms "connect", "combine", "couple", and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, direct connection refers to two parts or components being connected together without the need for an intermediate piece, and indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

[0053] In the present application, it will be understood by those of ordinary skill in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerances caused by manufacturing, assembly, and use associated with a specific value, and the like. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0054] In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0055] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.

[0056] Currently, the existing grass discharge assembly connected to the grass discharge port at the rear end of the main machine is in an inverted U shape, and the top is tilted downward. When grass clippings are discharged from the grass discharge port, they hit the grass discharge assembly and are thrown out. Since the top of the grass discharge assembly is tilted downward, the grass clippings will not be thrown too far and may fall behind the rear wheel. In addition, since the grass discharge assembly is in an inverted U shape, the production cost is high and it is difficult to store.

[0057] Figure 1 The lawn mower 100 shown is used for users to cut grass in lawns, such as lawns in gardens, golf courses, etc. The grass in the lawn needs to be regularly cared for, so the lawn mower 100 needs to be frequently used for mowing. In this embodiment, the lawn mower 100 is a rear-propelled working machine. When the user is operating the lawn mower 100, the user stands behind the lawn mower 100 and pushes the lawn mower 100 to walk on the ground.

[0058] like Figure 1 , Figure 2 As shown, the lawn mower 100 includes: an operating device 11 and a main body 12. The operating device 11 is used for a user to hold and operate the lawn mower 100, and the main body 12 includes a main body housing 121 and a chassis 122. The operating device 11 is rotatably connected to the main body housing 121. Figure 2 As shown, the main unit 12 also includes a grass discharge port 123. The chassis 122 is used to accommodate at least part of the mowing components used to realize the mowing function of the lawn mower 100. The chassis 122 also forms an air flow channel, and the air flow channel includes a grass discharge port 123 arranged at the rear end of the main unit 12. The multiple components included in the main unit 12 are reasonably installed in various parts of the main unit 12. In order to facilitate the description of the technical solution, the following are defined: Figure 1 Shown: front, back, left, right, upper, and lower.

[0059] In some embodiments, the chassis 122 includes a first blade disc and a second blade disc. In other embodiments, the chassis 122 may include only one blade disc, and the present application does not limit the specific implementation of the blade disc. Each blade disc includes a blade assembly, and the blade assembly may include a first blade and a second blade, or may include only one blade. The present application does not limit the specific implementation of the blade assembly.

[0060] like Figure 1 As shown, the host 12 also includes a ventilation net 124, and one ventilation net 124 is provided on each of the left and right sides of the host 12, and the two ventilation nets 124 are not fixedly installed on the host. Optionally, the ventilation net 124 can be detachable, so as to facilitate cleaning when weeds are stuck in the ventilation net 124, or when there is dirt on the ventilation net 124. In addition, the ventilation net 124 can also be installed on the host 12 in a non-fixed manner in other ways, which is not limited in this application.

[0061] like Figure 1 As shown, the operating device 11 is connected to the main body 12 via two handle tubes 110 , and both handle tubes 110 are steel tubes, thereby ensuring the strength of the two handle tubes 110 and preventing the handle tubes 110 from breaking.

[0062] like Figure 1 As shown, the host housing 121 includes a battery pack compartment 125, and the battery pack compartment 125 includes a battery pack compartment body and a battery pack compartment cover. The battery pack compartment body includes a main body, and a groove is formed around the main body. The groove is recessed into the host housing 121. The groove can be integrally formed with the host housing 121 or can be an independent structure connected to the host housing 121. The battery pack compartment body is formed with an insertion port for inserting the battery pack. The battery pack compartment body and the battery pack compartment cover together surround the battery pack compartment 125 for accommodating the battery pack.

[0063] In some embodiments, the battery pack compartment is tilted at a certain angle relative to the horizontal plane, specifically tilted backward from the vertical direction, so the battery pack is also inserted into the battery pack compartment at a certain angle relative to the horizontal plane. The angle between the insertion direction of the battery pack and the horizontal plane is greater than or equal to 30° and less than or equal to 80°. Specifically, the angle between the insertion direction of the battery pack and the horizontal plane is 54°, that is, the tilt angle of the battery pack compartment relative to the horizontal plane is also 54°. Of course, it can be understood that the angle can also be other values ​​within the above range.

[0064] like Figure 2 As shown, the lawn mower 100 also includes a grass discharge component 13 for performing a grass discharge function. The grass discharge component 13 includes a main body 131 and a connecting portion 132. The main body 131 is used to guide the grass clippings coming out of the grass discharge port 123, and the connecting portion 132 is used to connect the grass discharge component 13 and the main unit 12. The connecting portion 132 includes a first connecting portion 1321 and a second connecting portion 1322. In the up and down direction, the first connecting portion 1321 is located at the upper end of the main body 131, and the second connecting portion 1322 is located at the lower end of the main body 131. The first connecting portion 1321 is used to connect to the housing shaft of the main unit 12, and the second connecting portion is used to connect to the housing hole of the main unit 12. Optionally, the first connecting portion 1321 may be a hook-type connecting portion for hanging on the housing shaft of the main unit 12; the second connecting portion 1322 may include a downward protruding portion for inserting into the housing hole of the main unit 12. The first connection part 1321 is hung on the housing shaft of the main unit 12, and the second connection part 1322 is inserted into the housing hole of the main unit 12, so that the grass removal component 13 is firmly connected to the main unit 12. In addition, the first connection part 1321 and the second connection part 1322 can also be any other form that allows the grass removal component 13 to be connected to the main unit 12, which is not limited in this application.

[0065] In some embodiments, Figure 3 As shown, the main body 131 is composed of a top wall baffle 1311 and a side wall baffle 1312, and the top wall baffle 1311 and the side wall baffle 1312 are connected so that the main body 131 is basically in an inverted L shape. Figure 3 As shown, the top wall baffle 1311 and the side wall baffle 1312 have a common edge, and the main body 131 is basically in an inverted L shape by being connected by the common edge. In one embodiment, the top wall baffle 1311 includes a first end 1311a close to the grass discharge port 123, and a second end 1311b opposite to the first end 1311a, that is, relative to the first end 1311a, the second end 1311b is an end away from the grass discharge port 123. In order to prevent grass clippings from falling out of the grass discharge assembly 13 when discharged from the grass discharge port 123, the width of the first end 1311a needs to be greater than or equal to the width of the grass discharge port 123.

[0066] like Figure 3 As shown, the portion of the top wall baffle 1311 connected to the grass discharge port 123 is the widest, and as it moves away from the grass discharge port 123, the width of the top wall baffle 1311 gradually decreases, that is, in the direction from the first end 1311a to the second end 1311b, the width of the top wall baffle 1311 gradually decreases. In some embodiments, the top wall baffle 1311 can also always keep the width unchanged, that is, in the direction from the first end 1311a to the second end 1311b, the width of the top wall baffle 1311 remains unchanged. Alternatively, in some embodiments, the width of the top wall baffle 1311 can also gradually increase as it moves away from the grass discharge port 123, that is, in the direction from the first end 1311a to the second end 1311b, the width of the top wall baffle 1311 gradually increases.

[0067] exist Figure 3 In the vertical direction shown, the second end 1311b is higher than the first end 1311a, so that the top wall baffle 1311 gradually tilts upward in the front-to-back direction. The top wall baffle 1311 also includes a first edge 1311c (i.e., a common edge) connected to the side wall baffle 1312, and a second edge 1311d opposite to the first edge 1311c. Figure 4 As shown, the angle between the line connecting the two end points of the second edge 1311d and the plane extending in the front-rear direction is greater than or equal to 0° and less than or equal to 15°, which is Figure 4 The first angle A in the figure can be 11°, and the specific angle of the first angle A is the upward tilt angle of the second end 1311b compared to the first end 1311a, and the plane P1 is a plane extending in the front-to-back direction, and the plane P1 is perpendicular to the up-down direction.

[0068] like Figure 3 As shown, in the left-right direction, the first edge 1311c is the right edge of the top wall baffle 1311, that is, the side wall baffle 1312 is connected to the right side of the top wall baffle 1311, so that the opening direction of the main body 131 is to the left. Since the direction in which the airflow channel reaches the grass discharge port 123 is to the left, the opening direction of the main body 131 is set to the left to be consistent with the direction in which the airflow channel reaches the grass discharge port 123, so that when the grass clippings are discharged to the left from the grass discharge port 123, they are thrown to the left along the grass discharge component 13, reducing energy consumption and enabling the grass clippings to be thrown farther. In addition, since the top wall baffle 1311 gradually tilts upward in the front-to-back direction, the grass clippings can also be thrown farther based on the tilt angle. Combined with the opening direction of the grass discharge component 13 and the tilt angle of the top wall baffle 1311, the grass clippings can be thrown farther, reducing the probability of grass clippings falling on the lawn that has just been cut, and improving the aesthetics.

[0069] like Figure 3As shown, the second end 1311b is not parallel to the plane extending in the left-right direction, and in the up-down direction, the endpoint where the second end 1311b is connected to the first edge 1311c is lower than the endpoint where the second end 1311b is connected to the second edge 1311d. At this time, the angle between the line connecting the two endpoints of the second end 1311b and the plane extending in the left-right direction is greater than or equal to 5° and less than or equal to 10°, which is Figure 3 The second angle B in the figure. The second angle B may be 8.5°, and the specific angle of the second angle B is the upward tilt angle of the second end 1311b from right to left in the left-right direction. The plane P2 is a plane extending in the left-right direction, and the plane P2 is perpendicular to the up-down direction. In the direction from the first end 1311a to the second end 1311b, the second edge 1311d tilts upward, so that when connected to the second end 1311b, it is higher than the connection between the first edge 1311c and the second end 1311b in the up-down direction. The second edge 1131d may gradually tilt upward at a fixed angle, or the second edge 1131d may tilt upward first and then tilt downward, at which time the connection between the second edge 1131d and the second end 1311b is still higher than the connection between the first edge 1311c and the second end 1311b in the up-down direction. In addition, as long as the connection between the second edge 1311d and the second end 1311b is higher than the connection between the first edge 1311c and the second end 1311b in the up and down direction, the second edge 1311d can also be tilted in any other manner in the direction from the first end 1311a to the second end 1311b, and this application does not limit this.

[0070] like Figure 4 , Figure 5 As shown, the side wall baffle 1312 includes a first edge 1311c connected to the top wall baffle 1311 and a third edge 1311e opposite to the first edge 1311c, and the side wall baffle 1312 also includes a third end 1311f close to the grass discharge port 123 and a fourth end 1311g opposite to the third end. In order to prevent grass clippings from falling out of the grass discharge assembly 13 when discharged from the grass discharge port 123, the height of the third end 1311f needs to be greater than or equal to the height of the grass discharge port 123. In the up and down direction, the third edge 1311e gradually tilts upward in the direction from the third end 1311f to the fourth end 1311g. The angle between the line connecting the two end points of the third edge 1311e and the plane extending in the front-to-back direction is greater than or equal to 0° and less than or equal to 15°. This angle is Figure 4The third angle C in the figure can be 11°. The specific angle of the third angle C is the inclination angle of the third edge 1311e in the direction from the third end 1311f to the fourth end 1311g. The plane P3 is a plane extending in the front-to-back direction, and the plane P3 is perpendicular to the up-down direction. In the up-down direction, the fourth end 1311g gradually inclines to the right from top to bottom, and the angle between the line connecting the two end points of the fourth end 1311g and the plane extending in the left-right direction is greater than or equal to 70° and less than or equal to 90°. This angle is Figure 5 The fourth angle D in the figure may be 82.8°, the specific angle of the fourth angle D is the inclination angle of the fourth end 1311g in the direction from top to bottom, the plane P4 is a plane extending in the left-right direction, and the plane P4 is perpendicular to the up-down direction.

[0071] In some embodiments, Figures 6 to 8 As shown, in the up-down direction, the second end 1311b is lower than the first end 1311a, so that the top wall baffle 1311 gradually tilts downward in the front-to-back direction. At this time, when the grass clippings are discharged to the left from the grass discharge port 123, they are ejected downward along the top wall baffle 1311. In order to avoid a short ejection distance of the grass clippings when they are ejected downward, the width of the top wall baffle 1311 remains unchanged in the direction from the first end 1311a to the second end 1311b, or the width of the top wall baffle 1311 is reduced to a lesser extent. As a result, the top wall baffle 1311 can guide the grass clippings to be ejected to a farther distance, reducing the probability of the grass clippings falling on the lawn that has just been mowed, and at the same time slowing down the ejection speed of the grass clippings, avoiding the probability of the grass clippings being injured by the user due to the excessive speed, thereby improving the safety of the grass discharge component 13.

[0072] like Figures 6 to 8As shown, at this time, the first angle A between the line connecting the two endpoints of the second edge 1311d and the plane extending in the front-to-back direction is greater than or equal to 0° and less than or equal to 45°. Optionally, the first angle A is 15°. Optionally, the first angle A is 23°. Optionally, the first angle A is 28°. Optionally, the first angle A is 33°. Optionally, the first angle A is 40°. The second angle B between the line connecting the two endpoints of the second end 1311b and the plane extending in the left-right direction is greater than or equal to 0° and less than or equal to 30°. Optionally, the second angle B is 5°. Optionally, the second angle B is 8°. Optionally, the second angle B is 13°. Optionally, the second angle B is 18°. Optionally, the second angle B is 22°. The third angle C between the line connecting the two endpoints of the third edge 1311e and the plane extending in the front-to-back direction is greater than or equal to 0° and less than or equal to 30°. Optionally, the third angle C is 5°. Optionally, the third angle C is 12°. Optionally, the third angle C is 15°. Optionally, the third angle C is 20°. Optionally, the third angle C is 25°. A fourth angle D between a line connecting two endpoints of the fourth end 1311g and a plane extending in the left-right direction is greater than or equal to 70° and less than or equal to 90°. Optionally, the fourth angle D is 73°. Optionally, the fourth angle D is 82°. Optionally, the fourth angle D is 88°.

[0073] In some embodiments, Fig. 9 As shown, the lawn mower 100 may further include a rear wall baffle 1314. In this case, the rear wall baffle 1314 does not belong to the main body 131, and the common edge connecting the top wall baffle 1311 and the side wall baffle 1312 still makes the main body 131 basically present an inverted L shape. Therefore, even if the rear wall baffle 1314 is provided on the lawn mower 100, the main body 131 is still in an inverted L shape.

[0074] The rear wall baffle 1314 includes a fourth edge 1314a connected to the top wall baffle 1311, and a fifth edge 1314b connected to the side wall baffle 1312. The fourth edge 1314a is a common edge of the rear wall baffle 1314 and the top wall baffle 1311, and the fifth edge 1314b is a common edge of the rear wall baffle 1314 and the side wall baffle 1312. Optionally, the fourth edge 1314a may be the second end 1311b, and the fifth edge 1314b may be the fourth end 1311g. In this case, Figures 3 to 5The rear wall of the main body 131 shown is directly added with a matching rear wall baffle 1314. Optionally, the fourth edge 1314a may also be independent of the second end 1311b, and the fifth edge 1314b may also be independent of the fourth end 1311g. The rear wall baffle 1314 also includes a sixth edge 1314c opposite to the fourth edge 1314a, and a seventh edge 1314d opposite to the fifth edge 1314b. Optionally, the sixth edge 1314c may be parallel to the fourth edge 1314a, and the seventh edge 1314d may be parallel to the fifth edge 1314b, so that the rear wall baffle 1314 is a parallelogram or a rectangle. Optionally, the extension line of the sixth edge 1314c may also intersect with the extension line of the fourth edge 1314a, and the extension line of the seventh edge 1314d may also intersect with the extension line of the fifth edge 1314b, so that the rear wall baffle 1314 is an irregular trapezoid. The present application does not limit the specific shape of the quadrilateral of the rear wall baffle 1314 , and setting the rear wall baffle 1314 to a quadrilateral can prevent grass clippings from leaking out of the rear wall baffle 1314 .

[0075] like Fig.10 In the vertical direction shown, the fourth edge 1314a is higher than the first end 1311a, specifically, the top wall baffle 1311 gradually tilts upward from the first end 1311a in the front-to-back direction, and then gradually tilts downward until the fourth edge 1314a, and finally the fourth edge 1314a is still higher than the first end 1311a, so that the top wall baffle 1311 is tilted upward as a whole in the front-to-back direction. Therefore, when the grass clippings are discharged from the grass discharge port 123, they can be thrown farther.

[0076] The top wall baffle 1311 includes a first edge 1311c (i.e., a common edge) connected to the side wall baffle 1312, and a second edge 1311d opposite to the first edge 1311c. The angle between the line connecting the two end points of the second edge 1311d and the plane extending in the front-to-back direction is greater than or equal to 0° and less than or equal to 15°, which is Figure 8 The fifth angle E in the figure, the specific angle of the fifth angle E is the upward tilt angle of the fourth edge 1314a compared to the first end 1311a.

[0077] like Fig.10 As shown, in order to prevent grass clippings from falling out of the grass discharge assembly 13 when discharged from the grass discharge port 123, the height of the fifth edge 1314b needs to be greater than or equal to the height of the grass discharge port 123. In the vertical direction, the fifth edge 1314b gradually tilts upward in the direction from the third end 1311f to the fifth edge 1314b. At this time, the angle between the line connecting the two end points of the third edge 1311e and the plane extending in the front-to-back direction is still greater than or equal to 0° and less than or equal to 15°, that is, Figure 8The third angle C in the figure. At this time, the specific angle of the third angle C is the inclination angle of the third edge 1311e in the direction from the third end 1311f to the fifth edge 1314b.

[0078] like Fig. 9 As shown, the fourth edge 1314a is not parallel to the plane extending in the left-right direction, and in the up-down direction, the endpoint where the fourth edge 1314a connects with the first edge 1311c is lower than the endpoint where the fourth edge 1314a connects with the second edge 1311d. The angle between the line connecting the two endpoints of the fourth edge 1314a and the plane extending in the left-right direction is greater than or equal to 5° and less than or equal to 10°, which is Fig. 9 The sixth angle F in .

[0079] like Fig.11 and Fig.12 As shown, the portion of the top wall baffle 1311 connecting the grass discharge port 123 (the first end 1311a) is the widest, and as it moves away from the grass discharge port 123, the width of the top wall baffle 1311 gradually decreases, and then the width of the top wall baffle 1311 gradually increases until it reaches the fourth edge 1314a. Optionally, the width of the first end 1311a is the same as the width of the fourth edge 1314a. Optionally, the width of the first end 1311a is greater than the width of the fourth edge 1314a. Optionally, the width of the first end 1311a is less than the width of the fourth edge 1314a. Among them, the width of the first end 1311a must be greater than or equal to the width of the grass discharge port 123. As shown in FIG. Fig.11 As shown, in the up-down direction, the fifth edge 1314b gradually tilts leftward from top to bottom, and the angle between the line connecting the two end points of the fifth edge 1314b and the plane extending in the left-right direction is greater than or equal to 90° and less than or equal to 120°, which is Fig.11 The seventh angle G in .

[0080] like Fig.10 As shown, in the direction of the seventh edge 1314d opposite to the fifth edge 1314b, the sixth edge 1314c gradually tilts downward, and the fourth edge 1314a also gradually tilts downward, so that when the grass clippings are discharged from the grass discharge port, they can be ejected downward after passing through the rear wall baffle 1314, thereby slowing down the ejection speed of the grass clippings discharged from the grass discharge port 123. Fig.12 As shown, the eighth angle H formed by the first edge 1311c and the fourth edge 1314a is greater than or equal to 120° and less than or equal to 180°, and an obtuse angle is formed between the rear wall baffle 1314 and the side wall baffle 1312, so that when the grass clippings are discharged from the grass discharge port 123, the ejection speed of the grass clippings can be slowed down, and at the same time, the ejection of the grass clippings will not be hindered, and the grass clippings can be guided to be ejected to a farther distance at a lower speed, avoiding the possibility of injuring the user due to the excessive speed of the grass clippings, thereby improving the safety of the grass discharge component 13.

[0081] like Fig.13 As shown, the lawn mower 100 further includes a rear cover 14, which is connected to the main machine 12 via a housing shaft, and is located above the grass discharge assembly 13 and shields at least a portion of the top wall baffle 1311. The rear cover 14 and the top wall baffle 1311 support each other, and the support assembly 1313 on the top wall baffle 1311 is connected to the inner wall of the rear cover 14 to achieve mutual support between the two. Thus, the grass discharge assembly 13 can be more firmly connected to the main machine 12, and the rear cover 14 can further help prevent grass clippings from falling out of the grass discharge assembly 13 when being discharged.

[0082] like Fig.14 As shown, the lawn mower 100 also includes a grass collecting basket 15. When the grass removal component 13 is not connected to the main body 12, the grass collecting basket 15 is connected to the main body 12. The grass collecting basket 15 includes a third connecting portion 151 and a fourth connecting portion 152, and the third connecting portion 151 and the fourth connecting portion 152 are both located above the grass collecting basket 15. The grass collecting basket 15 is connected to the housing shaft of the main body 12 through the third connecting portion 151 and the fourth connecting portion 152. Among them, the third connecting portion 151 and the fourth connecting portion 152 can both be hook-type connecting portions, which are connected to the main body 12 by hanging on the housing shaft of the main body 12. In addition, the grass collecting basket 15 can also be connected to the main body 12 in other ways, which is not limited in this application.

[0083] The grass discharge components connected to the grass discharge ports of various types of lawn mowers are all in an inverted U shape. Compared with the inverted U-shaped grass discharge components that have been used, the inverted L-shaped grass discharge component 13 in the present application is composed of a top wall baffle 1311 and a side wall baffle 1312, which has a simple structure and saves material costs. Moreover, when the grass discharge component 13 is removed from the main unit 12, compared with the inverted U-shaped grass discharge component that is semi-enclosed and difficult to store, the grass discharge component 13 in the present application is easy to store because of its shape as an inverted L-shaped open component. For example, it can be placed on a battery pack for storage, or multiple grass discharge components 13 can be stacked and stored, etc. In addition, in the case where the inverted U-shaped grass discharge component has been a commonly used grass discharge component, the inverted L-shaped grass discharge component breaks through the inherent structure of the grass discharge component of the lawn mower.

[0084] like Fig.15 As shown, in order to facilitate users of different heights to operate the lawn mower 100, the lawn mower 100 also includes a handle height adjustment mechanism 126, and the handle height adjustment mechanism 126 includes an outer gear disc, an inner gear disc and a knob, the inner gear disc is arranged on the main body 12, the outer gear disc and the inner gear disc are rotatably engaged, and the knob passes through the handle tube 110 and is movably connected to the outer gear disc.

[0085] In some embodiments, a support plate is further provided between the inner gear disc and the main unit 12, and the inner gear disc is connected to the support plate via a connecting piece. A height gear scale is also marked on the support plate, and an indicator mark is provided on the outer gear disc. Through the correspondence between the indicator mark and the number on the height gear scale, the user can clearly know the current height gear of the handle tube 110.

[0086] In some embodiments, a Hall element is provided on the inner gear disc, and an annular magnet is provided on the outer gear disc. The size of the annular magnet is larger than the Hall element, and the annular magnet has a certain length. Optionally, the length of the annular magnet is determined based on whether the Hall element can sense the annular magnet when the indicator mark corresponds to the number on the height gear scale.

[0087] When the height gear position of the handle tube 110 corresponds to the gear position of the number on the height gear scale, the Hall element can sense the annular magnet, so that the lawn mower 100 can be started normally. When the height gear position of the handle tube 110 is not the gear position corresponding to the number on the height gear scale, the annular magnet is far away from the Hall element, and the Hall element cannot sense the annular magnet, so that the lawn mower 100 cannot be started normally. Therefore, when the handle tube 110 in the lawn mower 100 is in a folded state, or in a non-working state where other indicator marks do not correspond to the numbers on the height gear scale, the lawn mower 100 cannot be started, thereby improving the safety of using the lawn mower 100.

[0088] like Fig.16 As shown, the lawn mower 100 includes a front height adjustment mechanism 200 and a rear height adjustment mechanism 300 . The front height adjustment mechanism 200 is used to adjust the height of the front portion of the main machine 12 , and the rear height adjustment mechanism 300 is used to adjust the height of the rear portion of the main machine 12 .

[0089] In some embodiments, the front height adjustment mechanism 200 includes a first elastic member and a front height adjustment shaft, one end of the first elastic member is connected to the host 12, and the other end of the first elastic member is connected to the front height adjustment shaft. When adjusting the height of the front of the host 12, the bottom plate of the host 12 will fall under the action of gravity, and the elastic force of the first elastic member can offset the gravity. The user only needs to gently hold the bottom plate to perform the height adjustment operation, saving time and effort. In some embodiments, the first elastic member is a torsion spring, which is sleeved on the front height adjustment shaft, and one end of the torsion spring is in contact with the bottom plate of the host 12, and the other end is connected to a fixed plate fixed on the front height adjustment shaft.

[0090] In some embodiments, the rear height adjustment mechanism 300 includes a second elastic member and a rear height adjustment shaft, one end of the second elastic member is connected to the mainframe 12, and the other end of the second elastic member is connected to the rear height adjustment shaft. Since the bottom plate of the mainframe 12 will fall under the action of gravity when adjusting the rear height of the mainframe 12, the elastic force of the second elastic member can offset the gravity, and the user only needs to gently assist the bottom plate to perform the height adjustment operation, saving time and effort. In some embodiments, the second elastic member is a tension spring, one end of the tension spring is connected to the tension spring hook set on the bottom plate of the mainframe 12, and the other end is fixedly connected to the rear height adjustment shaft.

[0091] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the above embodiments do not limit the present application in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present application.

Claims

1. A lawn mower, comprising: A main machine, comprising a mowing element for realizing the mowing function of the mower and a chassis for accommodating at least part of the mowing element, wherein the chassis is formed with an air flow channel, and the air flow channel comprises a grass discharge port arranged at the rear end of the main machine; A grass removal component, used for performing a grass removal function; Characterized in that the grass removal component comprises: A main body, used for guiding grass clippings coming out of the grass discharge port; A connecting part, used to connect the grass removal component and the host; The main body comprises a top wall baffle and a side wall baffle, and the top wall baffle and the side wall baffle are connected so that the main body is substantially in an inverted L shape.

2. The lawn mower according to claim 1, characterized in that The top wall baffle includes a first end close to the grass discharge port and a second end opposite to the first end, the second end is farther away from the grass discharge port relative to the first end, and the width of the first end is greater than or equal to the width of the grass discharge port.

3. The lawn mower according to claim 1, characterized in that The top wall baffle includes a first edge connected to the side wall baffle and a second edge opposite to the first edge, and the angle between the line connecting the two end points of the second edge and the plane extending in the front-to-back direction is greater than or equal to 0° and less than or equal to 45°.

4. The lawn mower according to claim 2, characterized in that An angle between a line connecting two end points of the second end and a plane extending in the left-right direction is greater than or equal to 0° and less than or equal to 30°.

5. The lawn mower according to claim 3, characterized in that The side wall baffle includes the first edge connected to the top wall baffle and a third edge opposite to the first edge, and the angle between the line connecting the two end points of the third edge and the plane extending in the front-to-back direction is greater than or equal to 0° and less than or equal to 30°.

6. The lawn mower according to claim 1, characterized in that The side wall baffle includes a third end close to the grass discharge port and a fourth end opposite to the third end, the fourth end is farther away from the grass discharge port relative to the third end, and an angle between a line connecting two end points of the fourth end and a plane extending in the left-right direction is greater than or equal to 70° and less than or equal to 90°.

7. The lawn mower according to claim 3, characterized in that The first edge is the right edge of the top wall baffle, and the side wall baffle is connected to the right edge of the top wall baffle so that the opening direction of the main body is leftward.

8. The lawn mower according to claim 1, characterized in that The lawn mower further comprises a rear wall baffle, wherein the rear wall baffle comprises a fourth edge connected to the top wall baffle and a fifth edge connected to the side wall baffle.

9. The lawn mower according to claim 8, characterized in that An angle between a line connecting two end points of the fourth edge and a plane extending in the left-right direction is greater than or equal to 5° and less than or equal to 10°.

10. The lawn mower according to claim 8, characterized in that An angle between a line connecting two end points of the fifth edge and a plane extending in the left-right direction is greater than or equal to 90° and less than or equal to 120°.

11. The lawn mower according to claim 8, characterized in that An angle formed by the first edge and the fourth edge is greater than or equal to 120° and less than or equal to 180°.

12. The lawn mower according to claim 8, characterized in that The rear wall baffle is a quadrilateral and further includes a sixth edge and a seventh edge. The sixth edge is opposite to the fourth edge, and the seventh edge is opposite to the fifth edge.

13. The lawn mower according to claim 1, wherein: The connecting part includes a first connecting part and a second connecting part; the first connecting part is located at the upper end of the main body and is used to connect to the housing axis of the host; the second connecting part is located at the lower end of the main body and is used to connect to the housing hole of the host.

14. The lawn mower according to claim 1, wherein: The lawn mower further comprises a rear cover, which is connected to the main machine, and is located above the grass removal assembly and covers at least a portion of the top wall baffle.

15. The lawn mower according to claim 8, characterized in that The lawn mower also includes a grass collecting basket; when the grass discharge assembly is not connected to the main machine, the grass collecting basket is connected to the housing shaft of the main machine through a third connecting part and a fourth connecting part; wherein the third connecting part and the fourth connecting part are both located at the upper end of the grass collecting basket.

16. A lawn mower comprising: A main machine, comprising a mowing element for realizing the mowing function of the mower and a chassis for accommodating at least part of the mowing element, wherein the chassis is formed with an air flow channel, and the air flow channel comprises a grass discharge port arranged at the rear end of the main machine; A grass removal component, used for performing a grass removal function; Characterized in that the grass removal component comprises: A main body, used for guiding grass clippings coming out of the grass discharge port; A connecting part, used to connect the grass removal component and the host; The main body comprises a top wall baffle and a side wall baffle, wherein the side wall baffle and one side of the top wall baffle comprise a common edge, so that an opening exists on the other side of the main body.

17. The lawn mower according to claim 16, characterized in that The right side edge of the top wall baffle is connected to the side wall baffle so that the opening direction of the main body is leftward, and the right side edge is the common edge.

18. The lawn mower according to claim 16, wherein: The top wall baffle includes a first edge connected to the side wall baffle and a second edge opposite to the first edge, and the side wall baffle includes the first edge connected to the top wall baffle and a third edge opposite to the first edge; wherein the angle between the line connecting the two end points of the second edge and the plane extending in the front-to-back direction is greater than or equal to 0° and less than or equal to 45°, and the first edge is the common edge.

19. The lawn mower according to claim 16, wherein: The lawn mower further comprises a rear wall baffle, wherein the rear wall baffle comprises a fourth edge connected to the top wall baffle and a fifth edge connected to the side wall baffle.

20. The lawn mower according to claim 16, wherein: The lawn mower further comprises a rear cover, which is connected to the main machine, and is located above the grass removal assembly and covers at least a portion of the top wall baffle.

Images