Rear walking type power tool

Abstract

The invention discloses a rear walking type power tool which comprises a working assembly, a main body, a handle device and an energy device, and the working assembly comprises a working piece and a motor arranged to drive the working piece to rotate; the main body accommodates at least part of the working component; the handle device is connected to the main body; the energy device is arranged to provide energy for the motor; the main body comprises a combination part for accommodating an energy device and a storage part for storing articles; the main body is provided with a main body foremost end, and at least part of the combination part is arranged between the main body foremost end and the storage part; the projection of the storage part on the ground is defined as a first projection, the projection of the workpiece on the ground during rotation is defined as a second projection, and at least part of the first projection and the second projection are overlapped. At least part of the storage part is located in the middle of the main body, the battery pack is arranged in front, the gravity center of the whole machine moves forwards, and balance can be guaranteed even if the grass basket is full of grass.

Description

Technical Field

[0001] The present application relates to a power tool, and in particular to a walk-behind power tool. Background Art

[0002] A walk-behind power tool in the related art, such as a lawn mower, is mostly powered by a battery pack. The lawn mower includes a motor and a cutting blade, the motor is used to drive the cutting blade to rotate to achieve cutting, and the battery pack is used to supply power to the motor.

[0003] The cutting blade is usually located in the middle of the fuselage, and running wheels are provided at the front and rear of the fuselage. In order to shorten the distance between the battery pack and the motor, the battery pack is usually located in the middle of the fuselage so that the motor is located below the battery pack. The grass basket of the lawn mower is usually located at the rear of the fuselage, and the battery pack is located in the middle of the fuselage. When the grass basket is full of grass, the center of gravity of the whole machine is backward, the balance is poor, and there is a risk of tilting the nose. In addition, since the battery pack is located in the middle of the fuselage, the space above the fuselage is wasted and cannot be effectively utilized.

[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 a walk-behind power tool.

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

[0007] A rear-propelled power tool comprises: a working assembly, comprising a working piece and a motor configured to drive the working piece to rotate; a main body, configured to accommodate at least part of the working assembly; a handle device, connected to the main body; an energy device, configured to provide energy for the motor; the main body comprises a coupling portion configured to accommodate the energy device and a storage portion configured to store items; the main body has a front end of the main body, at least part of the coupling portion is arranged between the front end of the main body and the storage portion; the projection of the storage portion on the ground is defined as a first projection, and the projection of the working piece on the ground when it rotates is defined as a second projection, and at least part of the first projection overlaps with the second projection.

[0008] In some embodiments, an overlapping portion of the first projection and the second projection is defined as a third projection, and an area ratio of the third projection to the first projection is greater than or equal to 0.5 and less than or equal to 1.

[0009] In some embodiments, a projection of the combined portion on the ground is defined as a fourth projection, and an area ratio of the fourth projection to the first projection is greater than or equal to 0.3 and less than or equal to 2.

[0010] In some embodiments, an overlapping portion of the fourth projection and the second projection is defined as a fifth projection, and an area ratio of the fifth projection to the second projection is greater than or equal to 0 and less than or equal to 0.2.

[0011] In some embodiments, at least a portion of the storage portion has a continuous and flat bottom surface, and a projection of the bottom surface on the ground is defined as a sixth projection, and an area ratio of the sixth projection to the second projection is greater than or equal to 0.3 and less than or equal to 0.9.

[0012] In some embodiments, the body includes a chassis and a cover at least partially disposed above the chassis.

[0013] In some embodiments, the cover is formed with a storage portion.

[0014] In some embodiments, the cover is formed with a coupling portion.

[0015] In some embodiments, the storage portion forms a receiving space having a maximum water storage depth, and a ratio of the maximum water storage depth to a length of a longest point of the first projection is greater than or equal to 0.1 and less than or equal to 0.3.

[0016] In some embodiments, the storage portion is formed with a accommodating space, the accommodating space has a maximum water storage depth, and the maximum water storage depth is greater than or equal to 30 mm and less than or equal to 200 mm.

[0017] In some embodiments, the energy device has a front end of the energy device, and the distance between the front end of the energy device and the front end of the main body is greater than or equal to 50 mm and less than or equal to 250 mm.

[0018] In some embodiments, the motor is configured to rotate around a motor axis, and the energy device has a rear end of the energy device, which is located in front of the motor axis, and the distance between the rear end of the energy device and the motor axis is greater than or equal to 5 mm and less than or equal to 200 mm.

[0019] In some embodiments, at least a portion of the storage portion is movable.

[0020] In some embodiments, the storage portion includes at least two storage areas, and adjacent storage areas are separated by a barrier portion.

[0021] In some embodiments, the storage section has a rearmost end of the storage section, and a projection of the rearmost end of the storage section on the ground is located behind the second projection.

[0022] In some embodiments, an upper cover is disposed above the storage portion, and the upper cover can open or close the accommodating space of the storage portion.

[0023] In some embodiments, at least a portion of the storage portion includes a drainage channel for guiding water in the storage portion to flow out.

[0024] The benefits of the present application lie in that: by providing a storage portion, storage space is increased, allowing users to place spare battery packs or other items; the projection of the storage portion on the ground is a first projection, and the projection of the working piece on the ground when it rotates is a second projection, and at least part of the first projection overlaps with the second projection, so that at least part of the storage portion is located in the middle of the main body, and at least part of the combining portion is arranged between the front end of the main body and the storage portion, so that the battery pack is placed in front, and the center of gravity of the entire machine is moved forward, so that balance can be ensured even if the grass basket is full of grass. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a lawn mower provided by the present application;

[0026] Figure 2 is a side view of a lawn mower provided by the present application;

[0027] Figure 3 is a top view of a lawn mower provided by the present application;

[0028] Figure 4 This is a schematic diagram of the decomposition structure of a lawn mower provided by this application. Figure 1 ;

[0029] Figure 5 This is a schematic diagram of the decomposition structure of a lawn mower provided by this application. Figure 2 ;

[0030] Figure 6 is a front view of a partial structure of a lawn mower provided by the present application;

[0031] Figure 7 yes Figure 6 AA section view;

[0032] Figure 8 is a schematic diagram of a projection of a lawn mower provided by the present application;

[0033] Fig. 9 is a bottom view of a partial structure of a lawn mower provided by the present application;

[0034] Fig.10 is a top view of a partial structure of a lawn mower provided by the present application;

[0035] Fig.11 is a schematic diagram of the exploded structure of another lawn mower provided by the present application;

[0036] Fig.12 It is a schematic diagram of an exploded structure of another lawn mower provided by the present application, in which the storage part is rotatable;

[0037] Fig.13is a top view of another lawn mower provided by the present application;

[0038] Fig.14 is a top view of a rotatable storage portion of another lawn mower provided by the present application;

[0039] Fig.15 It is a top view of a storage portion of another lawn mower provided by the present application.

[0040] In the figure:

[0041] 100. Lawn mower;

[0042] 110, main body; 110a, front end of main body; 111, chassis; 1111, accommodating space; 112, joint; 1121, cover; 113, storage part; 1131, bottom surface; 113a, front end of storage part; 113b, rear end of storage part; 113c, left end of storage part; 113d, right end of storage part; 1131, rotating shaft; 114, cover; 1141, mounting part;

[0043] 120. handle device; 121. grip end; 122. connecting rod; 123. trigger;

[0044] 130. Traveling assembly; 131. Front traveling wheel; 132. Rear traveling wheel;

[0045] 140. working assembly; 141. working piece; 142. motor;

[0046] 150, energy device; 150a, front end of the energy device; 150b, rear end of the energy device. DETAILED DESCRIPTION

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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 intermediary, and indirect connection refers to two parts or components being connected to at least one intermediary respectively, and the two parts or components being connected via the intermediary. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

[0051] 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).

[0052] 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.

[0053] 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.

[0054] Figure 1 The walk-behind power tool 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 walk-behind power tool needs to be frequently used for mowing. In this embodiment, the walk-behind power tool is a lawn mower 100. When the user is operating the lawn mower 100, the user stands behind the lawn mower 100 to push the lawn mower 100 to walk on the ground.

[0055] like Figures 1 to 3 As shown, the lawn mower 100 includes a main body 110 , a handle device 120 and a travel assembly 130 .

[0056] The handle device 120 is connected to the main body 110. The lawn mower 100 has a motion state in which the main body 110 and at least part of the handle device 120 perform relative motion. During the relative motion of the main body 110 and at least part of the handle device 120, the lawn mower 100 is in a motion state. In this embodiment, the handle device 120 is pivotally connected to the main body 110. In the motion state, the handle device 120 rotates relative to the main body 110. In some embodiments, the handle device 120 is fixedly connected to the main body 110. The handle device 120 is configured to be operated by a user. The handle device 120 includes a gripping end 121 and a connecting rod 122, the gripping end 121 is used for the user to grip to push or hold the lawn mower 100, and the connecting rod 122 connects the gripping end 121 and the main body 110. The handle device 120 also includes a trigger 123, which is arranged on the gripping end 121. The trigger 123 is pressed by the user to control the lawn mower 100 to mow.

[0057] The travel assembly 130 includes two front travel wheels 131 and two rear travel wheels 132. The travel assembly 130 can at least drive the lawn mower 100 to move forward, backward and turn on the ground. The travel assembly 130 supports the main body 110 and the handle device 120.

[0058] like Figure 4 and Figure 5As shown, the lawn mower 100 also includes a working assembly 140. The main body 110 accommodates at least part of the working assembly 140. The working assembly 140 includes a working piece 141 and a motor 142, and the motor 142 is configured to drive the working piece 141 to move. The main body 110 includes a chassis 111. The chassis 111 is formed with a receiving space 1111 for receiving at least part of the working piece 141. The receiving space 1111 is open downward, and the working piece 141 is arranged in the receiving space 1111. The motor 142 is mounted to the chassis 111, and the working piece 141 is mounted to the motor 142 to be driven by the motor 142. The working piece 141 can be a blade, and the blade can have one or more. The motor 142 can be an electric motor. The motor drives the blade to rotate at high speed to cut grass.

[0059] The main body 110 supports the working assembly 140. The main body 110 connects the walking assembly 130, the working assembly 140, and the handle device 120 into a whole. The main body 110 also includes a coupling portion 112, and the coupling portion 112 is configured to accommodate an energy device 150. The energy device 150 is a battery pack, which is used to provide power to the lawn mower 100, and is specifically configured to provide energy for the motor 142. In other embodiments, the coupling portion 112 can also be connected to a cable, and the cable can be connected to the municipal power grid. In other embodiments, the coupling portion 112 can also be connected to other energy devices, for example, the coupling portion 112 can be connected to a fuel tank, and the fuel in the fuel tank can provide energy to the lawn mower 100.

[0060] See also Figures 1 to 8 The main body 110 also includes a storage portion 113, which is configured to store items. The main body 110 has a front end 110a, and at least a portion of the coupling portion 112 is disposed between the front end 110a and the storage portion 113. The projection of the storage portion 113 on the ground is defined as a first projection P1, and the projection of the working piece 141 on the ground when rotating is defined as a second projection P2, and at least a portion of the first projection P1 overlaps with the second projection P2.

[0061] By providing the storage part 113, the storage space is increased, and the user can place items, tools, garbage, etc.; the projection of the storage part 113 on the ground is the first projection P1, and the projection of the working piece 141 on the ground when it rotates is the second projection P2, and at least part of the first projection P1 overlaps with the second projection P2. This makes at least part of the storage part 113 located in the middle of the main body 110, and at least part of the connecting part 112 is arranged between the front end 110a of the main body and the storage part 113, so that the battery pack is placed in front, so that the center of gravity of the whole machine moves forward. Even if the grass basket is full of grass, the balance can be guaranteed.

[0062] The overlapping portion of the first projection P1 and the second projection P2 is defined as the third projection P3, and the area ratio of the third projection P3 to the first projection P1 is greater than or equal to 0.5 and less than or equal to 1. It is ensured that most of the storage unit 113 is located in the middle of the main body 110 to ensure the balance of the whole machine. In some embodiments, the area ratio of the third projection P3 to the first projection P1 is equal to 0.5, 0.6, 0.7, 0.8, 0.9 or 1.

[0063] The projection of the joint 112 on the ground is defined as a fourth projection P4, and the area ratio of the fourth projection P4 to the first projection P1 is greater than or equal to 0.3 and less than or equal to 2. In some embodiments, the area ratio of the fourth projection P4 to the first projection P1 is greater than or equal to 0.8 and less than or equal to 1.5. In some embodiments, the area ratio of the fourth projection P4 to the first projection P1 is equal to 0.3, 0.5, 0.8, 1, 1.2, 1.5, 1.8 or 2.

[0064] The overlapping portion of the fourth projection P4 and the second projection P2 is defined as the fifth projection P5, and the area ratio of the fifth projection P5 to the second projection P2 is greater than or equal to 0 and less than or equal to 0.2. In some embodiments, the area ratio of the fifth projection P5 to the second projection P2 is equal to 0, 0.1 or 0.2.

[0065] At least part of the storage part 113 has a continuous and flat bottom surface 1131, and the projection of the bottom surface 1131 on the ground is defined as the sixth projection P6, and the area ratio of the sixth projection P6 to the second projection P2 is greater than or equal to 0.3 and less than or equal to 0.9. In some embodiments, the area ratio of the sixth projection P6 to the second projection P2 is equal to 0.3, 0.4, 0.5, 0.6, 0.7, 0.8 or 0.9. In this embodiment, the bottom surface 1131 of the entire storage part 113 is continuous and flat. The flat bottom surface 1131 is beautiful and convenient for users to place large items. The items can be supported by the bottom surface 1131 when stored, and the stability is high. It should be noted that continuous flatness is used to represent the basic shape of the bottom surface 1131, and does not limit the roughness of the bottom surface 1131. In some embodiments, granular protrusions or rubber pads are provided on the bottom surface 1131 to increase the friction of the bottom surface 1131 on the stored items.

[0066] In the drawings, P1 represents a first projection, P2 represents a second projection, P3 represents a third projection, P4 represents a fourth projection, P5 represents a fifth projection, and P6 represents a sixth projection.

[0067] like Figure 7 and Fig. 9 As shown, since the working piece 141 rotates under the drive of the motor 142, the second projection P2 is substantially a circular surface. The diameter of the second projection P2 is greater than or equal to 350 mm and less than or equal to 600 mm. Fig. 9 In the figure, d represents the maximum diameter of the workpiece 141, that is, the diameter of the second projection P2. In addition, the first projection P1 may be circular, rectangular or other shapes, so the third projection P3 may be an irregular shape.

[0068] The storage part 113 can store items, so the storage part 113 forms a storage space, and items can be placed in the storage space. The storage space has a maximum water storage depth g, Figure 7 In the figure, g represents the maximum water storage depth of the accommodating space. The maximum water storage depth g of the accommodating space is the maximum depth of water after the accommodating space is filled with the maximum volume of water that it can accommodate. It should be noted that when measuring the maximum water storage depth, there is no restriction on the placement angle of the storage unit 113. In other words, the storage unit 113 can have a maximum water storage depth g when it is tilted, horizontally placed or in any position. Among them, the first projection P1 may be circular, rectangular or other shapes, and the bottom surface 1131 of the accommodating space may be a plane, a curved surface or an uneven surface. The ratio of the maximum water storage depth g to the length of the longest part of the first projection P1 is greater than or equal to 0.1 and less than or equal to 0.3. In some embodiments, the ratio of the maximum water storage depth g to the length of the longest part of the first projection P1 is equal to 0.1, 0.2 or 0.3. The ratio of the maximum water storage depth g to the longest length of the first projection is small, the storage area of ​​the accommodating space is large, and the accommodating depth is shallow, which is convenient for users to place larger items. The bottom surface 1131 is close to the user, so that users can take items without squatting.

[0069] The maximum water storage depth g of the accommodation space is greater than or equal to 30 mm and less than or equal to 200 mm. In some embodiments, the maximum water storage depth g of the accommodation space is greater than or equal to 50 mm and less than or equal to 150 mm. In some embodiments, the maximum water storage depth g of the accommodation space is greater than or equal to 100 mm and less than or equal to 120 mm.

[0070] The receiving space has a vertical height h. Figure 7 In the figure, h represents the vertical height of the storage space. The vertical height h of the storage space is the vertical distance between the highest point of the upper edge of the storage space and the lowest point of the bottom surface 1131 of the storage space in the vertical direction. The vertical height h of the storage space is greater than or equal to 20 mm and less than or equal to 300 mm. In some embodiments, the vertical height h of the storage space is greater than or equal to 50 mm and less than or equal to 250 mm. In some embodiments, the vertical height h of the storage space is greater than or equal to 100 mm and less than or equal to 200 mm.

[0071] The storage portion 113 has a front end 113a and a rear end 113b, and the distance L between the two end points of the front end 113a and the rear end 113b is the length of the storage portion 113, and the horizontal distance a between the front end 113a and the rear end 113b is the length of the second projection P2 in the front-to-back direction. It can be understood that the storage portion 113 may be placed horizontally or tilted on the main body 11 to make full use of the space, so the length L of the storage portion 113 is greater than or equal to the length a of the second projection in the front-to-back direction.

[0072] The horizontal distance a between the front end 113a of the storage part and the rear end 113b of the storage part is greater than or equal to 200 mm and less than or equal to 500 mm. Fig.10 In the figure, a represents the horizontal distance between the front end 113a of the storage part and the rear end 113b of the storage part.

[0073] The storage portion 113 has a leftmost end 113c and a rightmost end 113d, and a horizontal distance b between the leftmost end 113c and the rightmost end 113d is greater than or equal to 150 mm and less than or equal to 400 mm. Fig.10 In the figure, b represents the horizontal distance between the front end 113a of the storage part and the rear end 113b of the storage part.

[0074] The storage part 113 has a rear end 113b of the storage part, and the projection of the rear end 113b of the storage part on the ground is located behind the second projection P2. This makes the length of the storage part 113 on the main body 110 longer, and fully utilizes the upper space of the main body 110. The rear end 113b of the storage part does not exceed the rear end of the rear running wheel 132 to ensure the balance of the whole machine.

[0075] In some embodiments, the storage portion 113 includes a storage area, which is larger and can accommodate larger items. In some embodiments, the storage portion 113 includes at least two storage areas, and adjacent storage areas are separated by a barrier. Since the storage areas are separated, different items can be placed in different areas as needed.

[0076] The storage portion 113 may be formed by partially recessing the main body 110, or by connecting a shell to the main body 110 to form the storage portion 113. The main body 110 includes a chassis 111 and a cover 114 at least partially disposed above the chassis 111. The motor 142 is disposed between the chassis 111 and the cover 114. Components such as wires and controllers are also disposed in the space enclosed by the cover 114 and the chassis 111, and the cover 114 protects these components. In this embodiment, the cover 114 is formed with the storage portion 113. By sinking the cover 114 to form the storage portion 113, there is no need to add new components, the structure is simplified, and the space above the main body 110 is fully utilized.

[0077] The coupling portion 112 can accommodate the energy device 150. In the present embodiment, the machine cover 114 is formed with the coupling portion 112 to ensure integrity and facilitate processing and production. In other embodiments, a detachable coupling portion 112 may also be provided. The machine cover 114 is sunken to form a receiving cavity, which serves as the coupling portion 112 to accommodate the energy device 150. A cover body 1121 may be provided on the cavity, and the cover body 1121 shields the energy device 150 to prevent dust from contaminating the energy device 150. One end of the cover body 1121 is rotatably connected to the machine cover 114, and the other end of the cover body 1121 is snap-fitted to the machine cover 114, so as to facilitate opening the cover body 1121 to take out and place the energy device 150.

[0078] The energy device 150 can be inserted into the joint portion 112 in a vertical direction or a horizontal direction. In this embodiment, the insertion and removal direction of the energy device 150 forms an acute angle with the horizontal plane to reduce the height of the whole device.

[0079] The energy device 150 has a front end 150a of the energy device, and the distance between the front end 150a of the energy device and the front end 110a of the main body is greater than or equal to 50 mm and less than or equal to 250 mm. In the accompanying drawings, c represents the distance between the front end 150a of the energy device and the front end 110a of the main body. In some embodiments, the distance between the front end 150a of the energy device and the front end 110a of the main body is greater than or equal to 80 mm and less than or equal to 150 mm. In some embodiments, the distance between the front end 150a of the energy device and the front end 110a of the main body is greater than or equal to 100 mm and less than or equal to 120 mm.

[0080] In this embodiment, the front end 150a of the energy device is located behind the front end 110a of the main body. In other embodiments, the front end 150a of the energy device can be located in front of the front end 110a of the main body.

[0081] The motor 142 is configured to rotate around the motor axis O1, and the energy device 150 has a rear end 150b of the energy device, which is located in front of the motor axis O1, and the distance between the rear end 150b of the energy device and the motor axis O1 is greater than or equal to 5mm and less than or equal to 200mm. In the accompanying drawings, e represents the distance between the rear end 150b of the energy device and the motor axis O1. In some embodiments, the distance between the rear end 150b of the energy device and the motor axis O1 is greater than or equal to 20mm and less than or equal to 150mm. In some embodiments, the distance between the rear end 150b of the energy device and the motor axis O1 is greater than or equal to 50mm and less than or equal to 120mm. In some embodiments, the distance between the rear end 150b of the energy device and the motor axis O1 is greater than or equal to 80mm and less than or equal to 200mm. The rear end 150b of the energy device is located in front of the motor axis O1. The energy device 150 is located forward, which frees up more space for the storage part 113, increases the volume of the storage part 113, and allows the storage part 113 to store larger and more items. The energy device 150 is heavy, and the forward movement of the energy device 150 moves the center of gravity of the lawn mower 100 forward, further enhancing the stability and comfort of the lawn mower 100.

[0082] In some embodiments, at least part of the storage portion 113 includes a drainage channel, and the drainage channel is used to guide the water in the storage portion 113 to flow out. When it rains or when washing, it is difficult for water to remain in the storage portion 113. The shape and number of the drainage channel are not limited here, and can be strip-shaped or hole-shaped, and one or more drainage channels can be provided. In some embodiments, a plug can be provided at the port of the drainage channel to facilitate blocking the drainage channel.

[0083] In some embodiments, an upper cover is provided above the storage section 113, and the upper cover can open or close the storage space of the storage section 113. Not only can the items in the storage section 113 be protected, but also dust and other impurities can be prevented from contaminating the storage space. The upper cover is snap-fitted to the machine cover 114. Alternatively, one end of the upper cover is rotatably connected to the machine cover 114, and the other end of the upper cover is snap-fitted to the machine cover 114. The upper cover is not considered to be a part of the storage section 113, so the first projection P1 of the storage section 113 on the ground does not include the projection of the upper cover. The upper cover can be made larger than the storage section 113, or the upper cover only covers part of the storage section 113.

[0084] Figures 1 to 10The storage portion 113 is shown as being integrally formed with the cover 114, and is not easy to disassemble. In some embodiments, at least a portion of the storage portion 113 is movable, which facilitates dumping of items in the storage portion 113, such as weeds, leaves, water, or garbage. In some embodiments, the storage portion 113 is rotatable, which facilitates dumping and cleaning. In some embodiments, the storage portion 113 is detachable, which facilitates dumping, cleaning, and replacement.

[0085] See also Fig.11 and Fig.12 The cover 114 is sunken to form a mounting portion 1141, and the storage portion 113 is movably disposed on the mounting portion 1141. Fig.11 As shown, the storage part 113 is inserted into the mounting part 1141. Since the mounting part 1141 is located at the upper part of the cover 114 and is recessed downward, the storage part 113 can be limited by the inner wall or edge of the mounting part 1141. When installing, the storage part 113 is inserted downward into the mounting part 1141. When disassembling, the storage part 113 is lifted upward. Fig.12 As shown, one end of the storage portion 113 is rotatably connected to the mounting portion 1141 , and the storage portion 113 is inserted into the mounting portion 1141 . When dumping is required, the storage portion 113 can be rotated to achieve the dumping. Fig.12 A rotating shaft 1131 is provided on the right side of the storage portion 113 , and the storage portion 113 is rotatably connected to the cover 114 via the rotating shaft 1131 .

[0086] exist Figures 1 to 12 In the illustrated lawn mower 100, the storage portion 113 is completely located at the rear side of the coupling portion 112. In some embodiments, part of the storage portion 113 is located at the rear side of the coupling portion 112, and at least part of the storage portion 113 is distributed on the left or right side of the coupling portion 112, making full use of the space around the coupling portion 112. Fig.13 As shown, part of the storage portion 113 is located at the rear side of the connecting portion 112 , and part of the storage portion 113 is distributed on the left and right sides of the connecting portion 112 .

[0087] like Fig.14 As shown, at least part of the storage part 113 is distributed on the left or right side of the coupling part 112, and the storage part 113 is rotatably connected to the cover 114. Specifically, a rotation shaft 1131 can be provided at the front end of the storage part 113, and the storage part 113 is rotatably connected to the cover 114 via the rotation shaft 1131. When dumping is required, the storage part 113 can be rotated to achieve it.

[0088] The storage portion 113 and the connecting portion 112 may be provided as an integral body or as a separate structure.

[0089] When the storage portion 113 and the connecting portion 112 are separate structures, when the storage portion 113 and the cover 114 are rotatably connected, it is necessary to avoid interference between the storage portion 113 and the connecting portion 112. Fig.15 As shown, the storage portion 113 is substantially U-shaped to avoid the coupling portion 112 . When dumping is required, the storage portion 113 is rotated while the coupling portion 112 is fixed.

[0090] When the storage part 113 and the connecting part 112 are integrated, when the storage part 113 and the cover 114 are rotatably or detachably connected, when it is necessary to dump, the connecting part 112 will also move with the movable storage part 113. After the storage part 113 is dumped and reset, the connecting part 112 is reset. It is understandable that the connecting part 112 will move with the energy device 150 on the connecting part 112 as the storage part 113 moves, so it is necessary to ensure that the energy device 150 can still supply power normally after the activity. Usually, the length of the wire needs to be increased.

[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 walk-behind power tool, comprising: A working assembly, comprising a working piece and a motor configured to drive the working piece to rotate; a main body, configured to accommodate at least a portion of the working assembly; a handle device connected to the body; an energy device, configured to provide energy for the motor; Features: The main body comprises a coupling portion configured to accommodate the energy device and a storage portion configured to store items; The main body has a front end of the main body, and at least part of the combining portion is arranged between the front end of the main body and the storage portion; The projection of the storage portion on the ground is defined as a first projection, the projection of the workpiece on the ground when rotating is defined as a second projection, and at least a portion of the first projection overlaps with the second projection.

2. The walk-behind power tool according to claim 1, characterized in that: An overlapping portion of the first projection and the second projection is defined as a third projection, and an area ratio of the third projection to the first projection is greater than or equal to 0.5 and less than or equal to 1.

3. The walk-behind power tool according to claim 1, characterized in that: A projection of the combined portion on the ground is defined as a fourth projection, and an area ratio of the fourth projection to the first projection is greater than or equal to 0.3 and less than or equal to 2.

4. The walk-behind power tool according to claim 3, characterized in that: An overlapping portion of the fourth projection and the second projection is defined as a fifth projection, and an area ratio of the fifth projection to the second projection is greater than or equal to 0 and less than or equal to 0.

2.

5. The walk-behind power tool according to claim 1, characterized in that: At least a portion of the storage portion has a continuous and flat bottom surface, and a projection of the bottom surface on the ground is defined as a sixth projection, and an area ratio of the sixth projection to the second projection is greater than or equal to 0.3 and less than or equal to 0.

9.

6. The walk-behind power tool according to claim 1, characterized in that: The main body includes a bottom plate and a cover at least partially disposed above the bottom plate.

7. The walk-behind power tool according to claim 6, characterized in that: The storage portion is formed on the cover.

8. The walk-behind power tool according to claim 6, characterized in that: The combination portion is formed on the cover.

9. The walk-behind power tool according to claim 1, characterized in that: The storage portion forms a storage space having a maximum water storage depth, and a ratio of the maximum water storage depth to a length of a longest point of the first projection is greater than or equal to 0.1 and less than or equal to 0.

3.

10. The walk-behind power tool according to claim 1, characterized in that: The storage portion forms a receiving space having a maximum water storage depth, and the maximum water storage depth is greater than or equal to 30 mm and less than or equal to 200 mm.

11. The walk-behind power tool according to claim 1, characterized in that: The energy device has a front end of the energy device, and a distance between the front end of the energy device and the front end of the main body is greater than or equal to 50 mm and less than or equal to 250 mm.

12. The walk-behind power tool according to claim 1, characterized in that: The motor is configured to rotate around a motor axis, and the energy device has a rear end of the energy device, which is located in front of the motor axis, and the distance between the rear end of the energy device and the motor axis is greater than or equal to 5 mm and less than or equal to 200 mm.

13. The walk-behind power tool according to claim 1, characterized in that: At least part of the storage portion is movable.

14. The walk-behind power tool according to claim 1, characterized in that: The storage portion includes at least two storage areas, and adjacent storage areas are separated by a blocking portion.

15. The walk-behind power tool according to claim 1, characterized in that: The storage portion has a rearmost end, and a projection of the rearmost end of the storage portion on the ground is located behind the second projection.

16. The walk-behind power tool according to claim 1, characterized in that: An upper cover is arranged above the storage portion, and the upper cover can open or close the accommodating space of the storage portion.

17. The walk-behind power tool according to claim 1, characterized in that: At least part of the storage portion includes a drainage channel, and the drainage channel is used to guide water in the storage portion to flow out.

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