Mower

Abstract

The present invention relates to the technical field of garden tools, and provides a mower. The mower has a grass chopping mode and a grass collecting mode, and comprises a housing, a door assembly and a knob assembly. A cutting cavity is formed in the housing, and a communicating opening is provided in the housing. The door assembly is pivotally connected to the housing. When the door assembly is located at an open position, the cutting cavity is connected to the communicating opening, and the mower is in the grass collecting mode; and when the door assembly is at a closed position, the communicating opening is closed, and the mower is in the grass chopping mode. The knob assembly is connected to the door assembly and can drive the door assembly to move. The knob assembly further comprises a locking piece having a locked state and an active state. When the locking piece is in the locked state, the knob assembly cannot rotate; and when the locking piece is in the active state, the knob assembly can rotate, and the rotation axis of the locking piece is basically perpendicular to the rotation axis of the knob assembly.

Description

Lawn mower Technical Field

[0001] The present invention relates to the technical field of garden tools, in particular to a lawn mower. Background Art

[0002] In order to adapt to different scenarios, existing lawn mowers are often provided with blocks, and the different modes of the lawn mower are switched during the process of removing the blocks. However, after the blocks are removed, they cannot be properly stored, so that the blocks are often lost.

[0003] In view of this, it is necessary to improve the existing lawn mower to solve the above problems.

[0004] Summary of the Invention

[0005] The object of the present invention is to provide a lawn mower to solve the problem that the stopper is easily lost.

[0006] To achieve the above object, the present invention provides a lawn mower having a grass chopping mode and a grass collecting mode, the lawn mower comprising:

[0007] A casing, wherein the casing is formed with a cutting cavity and is further provided with a communication port;

[0008] a door assembly pivotally connected to the housing, wherein when the door assembly is in an open position, the cutting chamber is connected to the communication port, and the lawn mower is in a grass collecting mode; when the door assembly is in a closed position, the communication port is closed, and the lawn mower is in a grass chopping mode;

[0009] A knob assembly, the knob assembly being connected to the door assembly and capable of driving the door assembly to move when the knob assembly is rotated;

[0010] Wherein, the knob assembly includes a locking member, which has a locked state and an activated state. When the locking member is in the locked state, the knob assembly cannot rotate. When the locking member is in the activated state, the knob assembly can rotate. The rotation axis of the locking member is basically perpendicular to the rotation axis of the knob assembly.

[0011] As a further improvement of the present invention, the knob assembly includes a knob base and a knob cover, one end of the locking member is accommodated in a storage cavity between the knob base and the knob cover, and the other end rests on the outer wall surface of the casing and can rotate along the outer wall surface, and the outer wall surface of the casing is provided with at least two locking grooves on the rotation path of the locking member. When the other end of the locking member is accommodated in the locking groove, the locking member is in a locked state, and the knob assembly cannot rotate; when the knob cover is pressed, one end of the locking member moves toward the knob base, and the other end disengages from the locking groove, the locking member is in an activated state, and the knob assembly can rotate.

[0012] As a further improvement of the present invention, the locking member is roughly V-shaped, including a first locking arm, a second locking arm and a connecting arm connecting the first locking arm and the second locking arm. The first locking arm is accommodated in the storage cavity and abuts against the knob cover. The connecting arm is connected to the knob base through a rotating shaft, and the second locking arm is accommodated in the locking groove.

[0013] As a further improvement of the present invention, the knob assembly also includes an elastic member arranged in the storage cavity. In the vertical direction, the first locking arm is clamped by the knob cover and the elastic member. When the knob cover is pressed, the first locking arm is pushed to compress the elastic member, and the second locking arm is tilted upward to disengage from the locking groove, and the knob assembly is in a rotatable state; after the pressure is released, the elastic member drives the first locking arm to reset, and the second locking arm is accommodated in the locking groove, and the knob assembly is in a locked state.

[0014] As a further improvement of the present invention, a positioning strip protruding toward the first locking arm is provided on the inner side wall of the knob cover, and a positioning groove is correspondingly recessed on the side of the first locking arm facing the knob cover. The positioning strip extends into the positioning groove and abuts against the first locking arm in real time.

[0015] As a further improvement of the present invention, a positioning portion and a positioning shaft passing through the positioning portion are provided at one end of the knob base away from the locking groove, the knob cover is provided with a receiving groove for accommodating the positioning portion, and a fourth through-hole is provided on the side wall of the knob cover. The fourth through-hole is connected to the receiving groove for the positioning shaft to pass through, so that the knob cover is rotatably connected to the knob base.

[0016] As a further improvement of the present invention, a through hole is provided on the housing for the door assembly to pass through, and the door assembly is fixedly connected to the knob assembly through the through hole to rotate synchronously with the knob assembly.

[0017] As a further improvement of the present invention, the door assembly includes a transmission shaft and a stopper connected to the transmission shaft, and the transmission shaft passes through the through hole and is fixedly connected to the knob assembly.

[0018] As a further improvement of the present invention, the lawn mower also includes a guide plate fixedly connected to the casing, the guide plate is provided with a guide surface and a through hole, the guide surface is accommodated in the casing, the through hole is exposed outside the casing, and the transmission shaft passes through the through hole and can rotate along the guide surface.

[0019] As a further improvement of the present invention, the casing is also provided with a first positioning block fixedly connected to the guide plate, one end of the transmission shaft passes through the through hole to be exposed to the outside of the casing, and the other end is fixedly connected to the first positioning block to achieve a fixed connection between the door assembly and the casing.

[0020] As a further improvement of the present invention, the bottom of the housing is open to form a cutting chamber, a communication port is provided on the side wall of the housing, and the housing is further provided with a grass collecting channel connected to the communication port; the lawn mower comprises:

[0021] a cutting assembly housed in the cutting cavity and capable of rotating within the cutting cavity;

[0022] a grass collecting bag, detachably fixed to the rear side of the housing and connected to the cutting chamber through the grass collecting channel and the connecting port;

[0023] In which, the door assembly is formed with a first curved surface and a second curved surface on the side facing the cutting assembly. When the door assembly blocks the connecting port, the first curved surface is coplanar with the inner wall surface of the cutting chamber, and together constitutes a cavity for the cutting assembly to rotate, so that the grass clippings cut by the cutting assembly are discharged from the bottom of the casing; when the door assembly is rotated to expose the connecting port, the second curved surface is located in the grass collection channel and is coplanar with the inner wall surface of the grass collection channel, so that the grass clippings cut by the cutting assembly are guided into the grass collection bag through the connecting port, the second curved surface and the grass collection channel.

[0024] As a further improvement of the present invention, the first curved surface and the second curved surface are offset up and down in the vertical direction, and at least one end of the first curved surface and the second curved surface share a common edge.

[0025] As a further improvement of the present invention, the first curved surface is an arc surface, and the curvature radius of the first curved surface is the same as the curvature radius of the inner wall surface of the cutting cavity; the second curved surface is a single curved surface.

[0026] As a further improvement of the present invention, in the vertical direction, the height of the first curved surface is the same as the height of the cutting assembly, and the second curved surface is located above the cutting assembly.

[0027] As a further improvement of the present invention, in the vertical direction, the height of the first curved surface accounts for one fifth to one quarter of the height of the second curved surface.

[0028] The beneficial effects of the present invention are as follows: the lawn mower of the present invention is provided with a door assembly pivotably connected to the housing, and a knob assembly is connected to the door assembly, so that the door assembly can be driven to move by the rotation of the knob assembly; in addition, the locking member of the knob assembly is set to have a locked state and an activated state, so that when the locking member is in the locked state, the knob assembly cannot be rotated, and when the locking member is in the activated state, the knob assembly can be rotated, thereby realizing the switching of the lawn mower between the grass collecting mode and the grass chopping mode, and the operation is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] FIG1 is a schematic structural diagram of a lawn mower according to an embodiment.

[0030] FIG2 is a schematic structural diagram of the lawn mower in FIG1 from another angle.

[0031] FIG3 is a schematic diagram of the grass collecting bag and door assembly in FIG2 after being decomposed.

[0032] FIG4 is a schematic diagram of the door assembly and the guide plate in FIG2 after being decomposed.

[0033] FIG5 is a schematic diagram of the combined structure of the door assembly, the knob assembly and the housing in FIG1 .

[0034] FIG6 is an exploded view of FIG5 .

[0035] FIG. 7 is an exploded view of the knob assembly in the H region of FIG. 6 .

[0036] FIG8 is an exploded view of the base, guide plate, and door assembly in FIG6 .

[0037] FIG9 is an exploded view of the first positioning block, the guide plate and the rear baffle in FIG6 .

[0038] FIG. 10 is an exploded view of the guide plate and door assembly in FIG. 6 .

[0039] FIG11 is a cross-sectional view of the knob assembly in FIG5.

[0040] FIG12 is an exploded view of the lawn mower in FIG1 from another angle.

[0041] FIG13 is a structural diagram of a lawn mower according to an embodiment of the present application.

[0042] FIG14 is a schematic structural diagram of the handle in FIG13 when it is in an extended state.

[0043] FIG15 is a schematic structural diagram of the handle in FIG13 when it is in a retracted state.

[0044] FIG. 16 is an exploded view of the handle shown in FIG. 15 .

[0045] FIG. 17 is an exploded view of the upper rod assembly of FIG. 16 .

[0046] FIG18 is a schematic structural diagram of the lower rod assembly in FIG16 .

[0047] FIG19 is a schematic structural diagram of the locking assembly in FIG16 .

[0048] FIG. 20 is an exploded view of the locking assembly shown in FIG. 19 .

[0049] FIG21 is a schematic diagram of FIG20 from another angle.

[0050] FIG22 is a perspective view of a lawn mower according to an embodiment of the present application.

[0051] FIG23 is a perspective view of the assembled housing and power head in FIG22 .

[0052] FIG. 24 is a stereoscopic view of FIG. 23 from another perspective.

[0053] FIG. 25 is a schematic diagram of FIG. 23 with the top cover removed.

[0054] FIG. 26 is an exploded view of FIG. 25 .

[0055] FIG27 is a perspective view of the housing in FIG26 .

[0056] FIG28 is a three-dimensional view of the housing shown in FIG27 from another perspective.

[0057] FIG. 29 is a perspective view of the volute in FIG. 26 .

[0058] FIG30 is a perspective view of the power head in FIG26.

[0059] FIG31 is a stereoscopic view of the power head shown in FIG30 from another perspective.

[0060] FIG32 is a flow diagram of external airflow.

[0061] FIG33 is a stereoscopic view of the power head shown in FIG30 from another perspective.

[0062] Figure 34 is a schematic structural diagram of the power head in one embodiment of the present application.

[0063] Figure 35 is an exploded view of the power head housing in Figure 34.

[0064] FIG36 is an exploded view of the first shell in FIG34.

[0065] FIG37 is a partially enlarged view of FIG36 .

[0066] FIG38 is an exploded view of FIG35 with the power head housing removed.

[0067] FIG39 is a schematic structural diagram of the battery pack cavity in FIG38 .

[0068] Figure 40 is an exploded view of the battery pack cavity and motor in Figure 35.

[0069] 41 is an exploded view of the cover and mounting strap of FIG. 34 .

[0070] Figure 42 is a structural schematic diagram of the power head shown in Figure 34 from another angle.

[0071] FIG43 is an exploded view of the flip cover locking device in FIG42 .

[0072] Figure 44 is a three-dimensional schematic diagram of a motor according to an embodiment of the present application.

[0073] FIG45 is an exploded view of the motor in FIG44 .

[0074] FIG46 is a partial enlarged view of portion A in FIG45 .

[0075] Figure 47 is a three-dimensional schematic diagram of the fourth shell in Figure 45.

[0076] FIG48 is an exploded view of the motor in FIG44 from another angle.

[0077] FIG49 is a partial enlarged view of portion B in FIG48.

[0078] FIG50 is a partial enlarged view of portion C in FIG48.

[0079] Figure 51 is a cross-sectional view of the motor in Figure 44.

[0080] FIG52 is a partially enlarged view of portion D in FIG51 .

[0081] Figure 53 is a schematic diagram of the three-dimensional structure of an embodiment of a lawn mower of the present application.

[0082] Figure 54 is an assembly exploded view of the blade fixing structure of the lawn mower shown in Figure 53.

[0083] Figure 55 is a schematic diagram of the assembly of the blade fixing structure in Figure 53.

[0084] Figure 56 is a schematic diagram of the three-dimensional structure of the first blade in Figure 55.

[0085] Figure 57 is a schematic diagram of the three-dimensional structure of the second blade in Figure 55.

[0086] Figure 58 is a schematic diagram of the three-dimensional structure of the third connecting member in Figure 55.

[0087] Figure 59 is a partial enlarged view of circle E in Figure 58.

[0088] FIG60 is a schematic diagram of the third connecting member shown in FIG58 from another angle.

[0089] Figure 61 is a cross-sectional view of the blade fixing structure shown in Figure 55.

[0090] Figure 62 is a cross-sectional view of the sleeve in Figure 60. DETAILED DESCRIPTION

[0091] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0092] The present invention discloses a lawn mower 1, which has a grass collecting mode and a grass chopping mode and can be switched between the two modes at will to meet the requirements for processing cut grass clippings in different scenarios.

[0093] Hereinafter, the lawn mower 1 of the present invention will be described with reference to specific embodiments.

[0094] Referring to Figures 1 to 4, the present invention discloses a lawn mower 1, comprising a housing 10, a door assembly 2, a knob assembly 3, a cutting assembly 4, and a grass collecting bag 5. The housing 10 has an opening at the bottom thereof to form a cutting chamber 11. A communication port 12 is formed on a side wall of the housing 10, the cutting chamber 11 and the communication port 12 being in communication with each other. Furthermore, the housing 10 is provided with a grass collecting passage 13 in communication with the communication port 12. The cutting assembly 4 is partially received within the cutting chamber 11 and is rotatable within the cutting chamber 11. The grass collecting bag 5 is detachably secured to the rear side of the housing 10 and communicates with the cutting chamber 11 via the grass collecting passage 13 and the communication port 12. The door assembly 2 is pivotally connected to the housing 10 to cover or expose the communication port 12. When the door assembly 2 is in the open position, the cutting chamber 11 is connected to the communication port 12, and the lawn mower 1 is in grass collecting mode. When the door assembly 2 is in the closed position, the communication port 12 is closed and the lawn mower 1 is in the grass-chopping mode.

[0095] As can be seen, the communication port 12 can be covered or exposed by rotating the door assembly 2 , so that the lawn mower 1 can be switched between the grass collecting mode and the grass chopping mode.

[0096] The knob assembly 3 is used to drive the door assembly 2 to rotate relative to the communication opening 12 to cover or expose the communication opening 12 .

[0097] Please refer to Figures 4 to 11 and in combination with Figure 1, the door assembly 2 is formed with a first curved surface 225 and a second curved surface 226 on the side facing the cutting assembly 4. When the door assembly 2 blocks the connecting port 12, the lawn mower 1 switches to the grass chopping mode. At this time, the first curved surface 225 is coplanar with the inner wall surface of the cutting chamber 11, and together constitutes a cavity for the rotation of the cutting assembly 4, so that the grass clippings cut by the cutting assembly 4 are discharged from the bottom of the casing 10 and covered on the ground; when the door assembly 2 is rotated to expose the connecting port 12, the lawn mower 1 switches to the grass collecting mode. At this time, the second curved surface 226 is located in the grass collecting channel 13 and is coplanar with the inner wall surface of the grass collecting channel 13, so that the grass clippings cut by the cutting assembly 4 are guided into the grass collecting bag 5 through the connecting port 12, the second curved surface 226 and the grass collecting channel 13 to achieve bagging. The first curved surface 225 and the second curved surface 226 can respectively cooperate with the wall surface of the housing 10 when the lawn mower 1 switches to different modes, thereby more effectively processing the cut grass clippings.

[0098] The first curved surface 225 and the second curved surface 226 are vertically offset, and at least one end of the first curved surface 225 and the second curved surface 226 share a side.

[0099] The first curved surface 225 is an arc-shaped surface, and its radius of curvature is the same as that of the inner wall of the cutting chamber 11. The second curved surface 226 is a single curved surface. This ensures that the first curved surface 225 completely conforms to the inner wall of the cutting chamber 11, and the cavity formed thereby ensures the rotation of the cutting assembly 4. The second curved surface 226 is a single curved surface, which prevents accumulation of grass clippings during the guiding process, thus improving efficiency.

[0100] In the vertical direction, the first curved surface 225 is at the same height as the cutting assembly 4, and the second curved surface 226 is located above the cutting assembly 4. The vertical offset arrangement of the two curved surfaces ensures that the cutting assembly 4 is not affected by the second curved surface 226 during rotation. Of course, in other embodiments, the second curved surface 226 can also be located below the cutting assembly 4, and this is not limited.

[0101] In the vertical direction, the height of the first curved surface 225 is one-fifth to one-quarter of the height of the second curved surface 226. This arrangement maximizes the guiding area of ​​the second curved surface 226 in grass collection mode while ensuring the rotation of the cutting assembly 4, thereby improving bagging efficiency. Of course, in other embodiments, there is no limitation on the vertical height ratio of the first curved surface 225 to the second curved surface 226.

[0102] The housing 10 defines a through-hole 101 through which the door assembly 2 passes. At least a portion of the door assembly 2 passes through the through-hole 101 and is fixedly connected to the knob assembly 3, rotating synchronously with the knob assembly 3. The door assembly 2 includes a transmission shaft 21 and a stopper 22 connected to the transmission shaft 21. The transmission shaft 21 passes through the through-hole 101 and is fixedly connected to the knob assembly 3. A first curved surface 225 and a second curved surface 226 are provided on the stopper 22. In other words, the transmission shaft 21 is fixed to one end of the communication port 12 and simultaneously passes through the through-hole 101 and is fixedly connected to the knob assembly 3. When the knob assembly 3 is rotated, the transmission shaft 21 is driven to rotate synchronously. Driven by the transmission shaft 21, the stopper 22 can rotate relative to the communication port 12 to cover or expose the communication port 12.

[0103] The knob assembly 3 is provided with a screw hole 315 at a position corresponding to the through hole 101. A shaft sleeve 28 is installed in the through hole 101 to fix the transmission shaft 21 passing through the through hole 101. When the knob assembly 3 is connected to the housing 10, the screw hole 315 and the transmission shaft 21 are aligned with each other. At this time, a screw 27 can be used to pass through the screw hole 315 and cooperate with the transmission shaft 21 to achieve a fixed connection between the transmission shaft 21 and the knob assembly.

[0104] The knob assembly 3 is fixed to the exterior of the housing 10, and the door assembly 2 is fixed to one end of the communication opening 12 and connected to the knob assembly 3. Specifically, the door assembly 2 can rotate relative to one end of the communication opening 12 to cover or expose the communication opening 12. In other embodiments, the knob assembly 3 can also be located inside the housing 10. In this case, an operating port can be provided on the housing 10 to expose the knob assembly's switch for actuation, without limitation.

[0105] Please refer to Figures 5 to 7 in combination with Figure 11, the knob assembly 3 includes a knob base 31, a knob cover 32 and a locking member 33. The locking member 33 has a locked state and an activated state. When the locking member 33 is in the locked state, the knob assembly 3 cannot rotate. When the locking member 33 is in the activated state, the knob assembly 3 can rotate. The rotation axis of the locking member 33 is basically perpendicular to the rotation axis of the knob assembly 3.

[0106] By pivotally connecting the door assembly 2 to the housing 10 and connecting the knob assembly 3 to the door assembly 2, the door assembly 2 can be driven to move by the rotation of the knob assembly 3. In addition, by setting the locking member 33 of the knob assembly 3 to have a locked state and an activated state, when the locking member is in the locked state, the knob assembly 3 cannot be rotated, and when the locking member 33 is in the activated state, the knob assembly 3 can be rotated, thereby realizing the switching of the lawn mower between the grass collecting mode and the grass chopping mode, which is simple to operate and easy to use.

[0107] One end of the locking member 33 is accommodated in the storage cavity 30 between the knob base 31 and the knob cover 32, and the other end abuts against the outer wall of the housing 10 and rotates along the outer wall. The outer wall of the housing 10 is provided with at least two locking grooves 15 on the rotation path of the locking member 33. When the other end of the locking member 33 is accommodated in the locking groove 15, the locking member 33 is in a locked state, and the knob assembly 3 cannot rotate. When the knob cover 32 is pressed, one end of the locking member 33 moves toward the knob base 31, and the other end disengages from the locking groove 15. The locking member 33 is in an activated state, and the knob assembly 3 can rotate.

[0108] In this embodiment, a base 103 is fixed to the outside of the housing 10. The base 103 is provided with a slot 130 corresponding to the through hole 101, so that a vertically continuous insertion cavity is formed between the through hole 101 and the slot 130. The transmission shaft 21 passes through the insertion cavity and is fixedly connected to the knob assembly 3. The locking groove 15 is provided on the base 103. Of course, in other embodiments, the base 103 can be provided as an extension integrally formed with the housing 10, and this is not limited to this.

[0109] The locking member 33 is generally V-shaped and includes a first locking arm 331, a second locking arm 332, and a connecting arm 333 connecting the first and second locking arms 331, 332. The first locking arm 331 is housed within the housing cavity 30 and abuts the knob cover 32. The connecting arm 333 is connected to the knob base 31 via a rotating shaft 34. The second locking arm 332 is housed within the locking slot 15. The locking member 33 is movably connected to the knob base 31. When the knob cover 32 presses the first locking arm 331 downward, the second locking arm 332 tilts upward and disengages the locking slot 15, allowing the knob assembly 3 to rotate. When the second locking arm 332 is housed within the locking slot 15, the knob assembly 3 is locked and cannot rotate, thereby securing the door assembly 2 fixedly connected to the knob assembly 3. The rotating shaft 34 is a screw, and a nut and screw securely connect the connecting arm 333 to the knob base 31.

[0110] The knob assembly 3 also includes an elastic member 35 disposed within the storage cavity 30. Vertically, the first locking arm 331 is clamped between the knob cover 32 and the elastic member 35. When the knob cover 32 is pressed, the first locking arm 331 is pushed until the elastic member 35 is compressed, causing the second locking arm 332 to tilt upward and disengage from the locking slot 15, placing the rotating assembly 3 in a rotatable state. After the pressure is released, the elastic member 35 drives the first locking arm 331 back to its original position, allowing the second locking arm 332 to be accommodated within the locking slot 15. At this point, the knob assembly 3 is in a locked state. By introducing the elastic member 35, the elastic force of the elastic member 35 can be utilized to complete the rotation of the locking member 33, thereby completing the mode switching of the lawn mower 1.

[0111] During use, one simply presses the knob cover 32 and rotates the knob assembly 3. When the second locking arm 332 moves to the corresponding locking slot 15, the knob cover 32 is released. Under the elastic force of the elastic member 35, the second locking arm 332 enters the locking slot 15 and locks it, causing the first locking arm 331 to tilt upward. In other embodiments, the elastic member 35 may be omitted, and the second locking arm 332 may be pushed into the locking slot 15 by hand or other tools. This is not a limitation here.

[0112] The inner sidewall of the knob cover 32 is provided with a positioning bar 327 that protrudes toward the first locking arm 331. A corresponding positioning slot 336 is formed on the side of the first locking arm 331 that faces the knob cover 32. The positioning bar 327 extends into the positioning slot 336 and abuts the first locking arm 331. This arrangement ensures that the first locking arm 331 can abut against the knob cover 32 without sliding or misalignment when pressed down or tilted. Furthermore, the downwardly protruding positioning bar 327 ensures that the first locking arm 331 is pressed down a certain distance, so that the second locking arm 332 can smoothly disengage the locking slot 15 when tilted upward.

[0113] The knob base 31 has a pin hole 317 and a pin shaft 318 extending through the pin hole 317 at one end away from the locking slot 15. The knob cover 32 has a receiving slot for accommodating the pin shaft 318. A fourth through-hole 328 is formed on the sidewall of the knob cover 32. The fourth through-hole 328 communicates with the receiving slot, allowing the pin shaft 318 to pass through, thereby rotatably connecting the knob cover 32 to the knob base 31. In other words, the knob cover 32 is positioned over the knob base 31. One end of the knob cover 32 is rotatably connected to the knob base 31, while the other end accommodates the locking member 33. The other end of the knob cover 32 is capable of tilting upward when the first locking arm 331 tilts upward.

[0114] The lawn mower 1 further includes a guide plate 20 fixedly connected to the housing 10. The guide plate 20 is provided with a guide surface 201 and a through hole 202. The guide surface 201 is housed within the housing 10, while the through hole 202 is exposed outside the housing 10. The transmission shaft 21 passes through the through hole 202 and is rotatable along the guide surface 201. Optionally, the guide plate 20 is a guide structure integrally formed with the housing 10, the through hole 202 is defined on a protrusion of the housing 10 that protrudes toward the knob assembly 3, and the guide surface 201 is an inner wall surface of the housing 10.

[0115] In this embodiment, the guide plate 20 is a standalone structure. One end of the guide plate 20, provided with a through hole 202, passes through the through hole 101, exposing the through hole 202 to the exterior of the housing 10. The guide surface 201 includes a first guide surface 2011 and a second guide surface 2012. The first guide surface 2011 mates with the inner wall of the cutting chamber 11 of the housing 10, guiding the cut grass clippings along the inner wall without affecting the rotation of the cutting assembly 4. The transmission shaft 21 mates with and can rotate along the second guide surface 2012. One end of the transmission shaft 21 passes through both the through hole 101 and the through hole 202, exposing the drive shaft 21 to the exterior of the housing 10. The second guide surface 2012 is a semicircular surface, directly opposite the through hole 202.

[0116] The housing 10 is also provided with a first positioning block 29 fixedly connected to the guide plate 20. One end of the transmission shaft 21 passes through the through hole 202 to be exposed to the outside of the housing 10, and the other end is fixedly connected to the first positioning block 29 to achieve a fixed connection between the door assembly 2 and the housing 10.

[0117] In this embodiment, the lawn mower 1 further includes a rear baffle 6 fixedly connected to the housing 10. The first positioning block 29 is fixed to the rear baffle 6. The first positioning block 29 has a prefabricated groove 291. The bottom of the guide plate 20 is also provided with a corresponding prefabricated hole 203. The rear baffle 6 is correspondingly provided with a prefabricated hole 61 and a fixing member 62 fixed in the prefabricated hole 61. When the rear baffle 6 is fixed to the housing 10, the prefabricated groove 291, the prefabricated hole 203, and the prefabricated hole 61 are aligned with each other. At this time, the fixing member 62 can be used to simultaneously pass through the prefabricated groove 291, the prefabricated hole 203, and the prefabricated hole 61 to achieve a fixed connection between the rear baffle 6, the housing 10, and the guide plate 20.

[0118] Please refer to Figures 1 to 3 in combination with Figure 12, the cutting assembly 4 includes a motor 41 and a cutting knife 42, the motor 41 is installed on the outside of the casing 10, the cutting knife 42 is accommodated in the cutting chamber 11 and can rotate in the cutting chamber 11, and a notch is left at the installation position of the motor 41 and the casing 10, and the motor 41 is connected to the cutting knife 42 through the notch, so that the cutting knife 42 can be driven to rotate by the motor 41.

[0119] Referring to Figures 1 to 3 in conjunction with Figure 12, the grass collecting bag 5 is detachably mounted on an end of the housing 10 away from the cutting chamber 11, wherein a snap-fit ​​portion 14 is provided on the housing 10, and a matching portion 51 is correspondingly provided on the grass collecting bag 5, so that the grass collecting bag 5 can be mounted on the housing 10 by utilizing the mutual cooperation between the snap-fit ​​portion 14 and the matching portion 51.

[0120] In this embodiment, the buckle portion 14 is a circular convex strip, and the matching portion 51 is a matching groove, so that the circular convex strip can be accommodated in the matching groove to achieve the installation of the grass collecting bag 5 and the housing 10.

[0121] In summary, the lawn mower 1 of the present invention houses one end of the locking member 33 within the storage cavity 30 between the knob base 31 and the knob cover 32, while the other end abuts against the outer wall of the housing 10 and rotates along the outer wall. This allows the locking member 33 and the door assembly 2, which is fixedly connected to the knob assembly 3, to rotate synchronously when the knob assembly 3 is rotated, thereby avoiding the need to disassemble the door assembly 2. Furthermore, by providing at least two locking slots 15 in the housing 10, when the knob assembly 3 is rotated so that the locking member 33 is accommodated in different locking slots 15, the door assembly 2 can be rotated to different positions driven by the knob assembly 3, thereby achieving switching between a grass collecting mode and a grass chopping mode. This is simple to operate and convenient to use.

[0122] As shown in FIG13 , a lawn mower 1 includes a main body 120 and a handle 710 extending upward and rearward from the main body 120. The main body 120 includes a housing 10, a power head 40, a cutter assembly, and a travel assembly 230, thereby ensuring the normal operation of the lawn mower 1. The handle 710 will be described in detail below.

[0123] As shown in Figures 14 to 16 and 21, the handle 710 includes a lower rod assembly 712, an upper rod assembly 711 that can slide relative to the lower rod assembly 712, and a locking assembly 713 that can lock the upper rod assembly 711 and the lower rod assembly 712. The upper rod assembly 711 has an extended state and a retracted state. In the extended state (Figure 14), the upper rod assembly 711 can extend outward relative to the lower rod assembly 712 to a first position; in the retracted state (Figure 15), the upper rod assembly 711 can retract inward relative to the lower rod assembly 712 to a second position. The locking assembly 713 has a released state and a locked state. In the released state, the upper rod assembly 711 can slide freely relative to the lower rod assembly 712; in the locked state, the upper rod assembly 711 and the lower rod assembly 712 can be locked to each other in the first position / second position.

[0124] In one embodiment, the upper rod assembly 711 and the lower rod assembly 712 can be locked at both the first position and the second position; of course, in another embodiment, the upper rod assembly 711 and the lower rod assembly 712 can also be locked only at the first position without limiting the state at the second position.

[0125] The locking assembly 713 includes a locking element 7131, a sensing element 7132 fixed to the locking element 7131, and a trigger element 7133. The sensing element 7132 and the trigger element 7133 are disposed opposite each other. When, and only when, the upper rod assembly 711 is extended relative to the lower rod assembly 712 to the first position and the locking element 7131 locks the upper rod assembly 711 and the lower rod assembly 712 in the first position, the sensing element 7132 and the trigger element 7133 sense each other and conduct electricity, allowing the lawn mower 1 to start and operate. In other cases, the lawn mower 1 cannot start and operate.

[0126] The handle 710 constitutes a safety switch mechanism. Only when the upper rod assembly 711 is in an extended state and the locking element 7131 keeps the upper rod assembly 711 and the lower rod assembly 712 in a locked state, the sensing element 7132 and the trigger element 7133 can sense each other and conduct, and the lawn mower 1 can be turned on normally. In other cases, the lawn mower 1 cannot be turned on normally and remains in the off state.

[0127] As shown in Figures 17 and 18 in conjunction with Figures 20 and 21 , both the upper rod assembly 711 and the lower rod assembly 712 are hollow tubular structures. The outer diameter of the upper rod assembly 711 is slightly smaller than the inner diameter of the lower rod assembly 712, ensuring that the upper rod assembly 711 can slide smoothly in and out of the lower rod assembly 712. The lower rod assembly 712 is provided with two first through-holes 7121, which are oppositely disposed and interconnected. The upper rod assembly 711 is provided with two second through-holes 7111, which are also oppositely disposed. When the upper rod assembly 711 is in the first position, the first through-holes 7121 and the second through-holes 7111 are aligned with each other. The upper rod assembly 711 also has only one third through-hole 7112, which is aligned with one of the first through-holes 7121 when the upper rod assembly 711 is in the second position.

[0128] When the locking element 7131 locks the upper rod assembly 711 and the lower rod assembly 712 at the first position, the sensing element 7132 can be aligned with one of the first through holes 7121 and the second through holes 7111, and the trigger element 7133 can be aligned with the other first through hole 7121 and the second through hole 7111. At this time, the sensing element 7132 senses the trigger element 7133; and when the locking element 7131 locks the upper rod assembly 711 and the lower rod assembly 712 at the second position, the trigger element 7133 can be aligned with the third through hole 7112, and the sensing element 7132 is separated by the upper rod assembly 711, and the sensing element 7132 cannot sense the trigger element 7133.

[0129] In one embodiment, at the second position, the upper rod assembly 711 is directly used to separate the sensing element 7132 and the triggering element 7133; of course, a blocking structure 714 can also be added inside the upper rod assembly 711, and the blocking structure 714 is used to separate the third through hole 7112 and the inner cavity of the upper rod assembly 711, so that the sensing element 7132 cannot sense the triggering element 7133.

[0130] As shown in Figures 18 to 21, the locking element 7131 includes a locking member fixed on the outer wall of the lower rod assembly 712 and a holding member 7135 rotatably connected to the locking member. The locking member is provided with a fourth through hole 7134 which is opposite to one of the first through holes 7121. The holding member 7135 is provided with a first fixing column 71351 which is configured to be able to be inserted into the interior of the lower rod assembly 712 from the fourth through hole 7134 and the first through hole 7121.

[0131] When the latching member 7135 rotates in a direction away from the locking member and causes the first fixing post 71351 to disengage from the first through hole 7121 and the fourth through hole 7134, the locking assembly 713 is in a released state, and the upper rod assembly 711 can now freely extend or retract relative to the lower rod assembly 712. When the latching member 7135 rotates in a direction toward the locking member and causes the first fixing post 71351 to insert from the fourth through hole 7134 and the first through hole 7121 into the second through hole 7111 / the third through hole 7112, the locking assembly 13 is in a locked state, and the upper rod assembly 711 and the lower rod assembly 712 are fixed to each other.

[0132] In this embodiment, the trigger element 7133 is fixed within the first fixing column 71351, and the sensing element 7132 is fixed within the locking member and aligned with the other first through-hole 7121. Specifically, the locking member includes a first locking member 71361 and a second locking member 71362 that mate with each other. The fourth through-hole 7134 is defined in the first locking member 71361, and the sensing element 7132 is fixed within the second locking member 71362. The first locking member 71361 and the second locking member 71362 are both semicircular in shape, and the lower rod assembly 712 is housed within the circular cavity formed by the first locking member 71361 and the second locking member 71362.

[0133] The first locking member 71361 has first positioning portions 71363 at each of its four corners, and the second locking member 71362 has second positioning portions 71364 at its four corresponding corners. The four first positioning portions 71363 are aligned with the four second positioning portions 71364. In this embodiment, the first positioning portions 71363 are positioning posts with perforations, and the second positioning portions 71364 are threaded posts with threaded holes. When the first locking member 71361 and the second locking member 71362 are assembled, the first positioning portions 71363 and the second positioning portions 71364 are aligned with each other, and the perforations and threaded holes are connected to each other. At this point, screws can be passed through the perforations and locked into the threaded holes to securely connect the first locking member 71361 and the second locking member 71362.

[0134] The latching member 7135 is rotatably connected to the first locking member 71361. A rotating shaft 71365 is fixed to one end of the first locking member 71361. One end of the latching member 7135 is sleeved on the rotating shaft 71365, allowing the latching member 7135 to rotate about the rotating shaft 71365. A clamping portion 71353 and a push-pull portion 71352 are provided at one end of the latching member 7135. Ribs 71366 are protruding from the sidewalls of the first locking member 71361. The clamping portion 71353 is configured to engage with the ribs 71366 to securely connect the latching member 7135 to the first locking member 71361. The push-pull portion 71352 is configured to disengage the clamping portion 71353 from the ribs 71366 under external force, releasing the latching member 7135.

[0135] A second positioning block 71367 is provided on the inner side wall of the first locking member 71361, and a first positioning hole 7122 is correspondingly opened on the lower rod assembly 712. The second positioning block 71367 is limited and accommodated in the first positioning hole 7122, thereby realizing a fixed connection between the first locking member 71361 and the lower rod assembly 712.

[0136] In the present application, the sensing element 7132 and the triggering element 7133 can be implemented in a variety of ways, as long as they can sense each other and enable the lawn mower 1 to start normally, and there is no limitation here. Three of the implementations will be described below with examples.

[0137] Implementation method 1: The sensing element 7132 and the trigger element 7133 are both photoelectric sensing devices. When the upper rod assembly 711 extends outward to the first position, the first through hole 7121 and the second through hole 7111 are aligned with each other. At this time, the sensing element 7132 and the trigger element 7133 can sense each other and conduct, and the lawn mower 1 can start normally; when the upper rod assembly 711 retracts inward to the second position, the third through hole 7112 is aligned with one of the first through holes 7121. At this time, the sensing element 7132 and the trigger element 7133 are separated by the upper rod assembly 711 / blocking structure 714, the sensing fails, and the lawn mower 1 cannot start.

[0138] Implementation method two, the sensing element 7132 and the trigger element 7133 are both Hall devices. When the upper rod assembly 711 extends outward to the first position, the first through hole 7121 and the second through hole 7111 are aligned with each other. At this time, the sensing element 7132 and the trigger element 7133 can sense each other and conduct, and the lawn mower 1 can start normally; when the upper rod assembly 711 retracts inward to the second position, the third through hole 7112 is aligned with one of the first through holes 7121. At this time, the sensing element 7132 and the trigger element 7133 are separated by the blocking structure 714, the induction fails, and the lawn mower 1 cannot start.

[0139] Implementation method three, the sensing element 7132 and the trigger element 7133 are both mechanical switches. When the upper rod assembly 711 extends outward to the first position, the first through hole 7121 and the second through hole 7111 are aligned with each other. At this time, the sensing element 7132 and the trigger element 7133 can sense each other and conduct, and the lawn mower 1 can start normally; when the upper rod assembly 711 retracts inward to the second position, the third through hole 7112 is aligned with one of the first through holes 7121. At this time, the sensing element 7132 and the trigger element 7133 are separated by the blocking structure 714, the induction fails, and the lawn mower 1 cannot start.

[0140] As shown in Figure 14, the upper rod assembly 711 is in an extended state, and the locking assembly 713 locks the upper rod assembly 711 and the lower rod assembly 712. The upper rod assembly 711 cannot be extended or retracted. This state is the working state of the lawn mower 1. At this time, the sensing element 7132 can sense the trigger element 7133, and the locking assembly 713 is in a locked state, allowing the lawn mower 1 to be turned on.

[0141] As shown in Figure 15, the upper rod assembly 711 is in a retracted state, and the locking assembly 713 locks the upper rod assembly 711 and the lower rod assembly 712. The upper rod assembly 711 cannot be extended or retracted. This state is the storage state of the lawn mower 1. In this state, although the locking assembly 713 is in a locked state, due to the existence of the blocking structure 714, the sensing element 7132 cannot sense the triggering element 7133, and the lawn mower 1 cannot be turned on.

[0142] When the locking assembly 713 is in the released state, the upper rod assembly 711 can freely extend and retract relative to the lower rod assembly 712. At this time, the trigger element 7133 is away from the sensing element 7132, and the sensing element 7132 cannot sense the trigger element 7133. At this time, the lawn mower 1 cannot be turned on.

[0143] To sum up, the handle 710 of the present invention is configured so that the sensing element 7132 and the triggering element 7133 will sense each other and be connected only when the upper rod assembly 711 and the lower rod assembly 712 are extended to the first position relative to the lower rod assembly 712 and the locking element 7131 locks the upper rod assembly 711 and the lower rod assembly 712 at the first position, so that the lawn mower 1 can start normally. In other cases, even if the locking assembly 713 is in a locked state, the sensing element 7132 and the triggering element 7133 cannot sense each other, and the lawn mower 1 cannot start, thereby avoiding the occurrence of dangerous situations and enhancing safety.

[0144] As shown in Figures 22 to 26, a lawn mower 1 is provided, comprising a main body 120, a power head 40, a cutting assembly, and a travel assembly 230. The main body 120 includes a housing 10 and a handle 710 connected to the housing 10, the handle 710 being used by an operator to propel the lawn mower 1. The power head 40 is mounted on top of the housing 10 and is used to provide power for the lawn mower 1. The power head 40 includes a motor 41.

[0145] The cutting assembly is mounted on the bottom of the housing 10 and connected to the motor 41 to perform a cutting action driven by the motor 41. In this embodiment, the cutting assembly includes a cutting blade 42, and the cutting blade 42 is connected to the output shaft 21 of the motor 41, so that the cutting blade 42 can be rotated by the motor 41 to perform a mowing action.

[0146] The travel assembly 230 includes a pair of front wheels 231 and a pair of rear wheels 232. The front wheels 231 and the rear wheels 232 not only support the main body 120 but also drive the lawn mower 1. The front wheels 231 and the rear wheels 232 are located at the four corners of the housing 10 to disperse the overall support force of the lawn mower 1.

[0147] As shown in Figures 24 to 28, a mounting portion 101 is provided on the casing 10, and the mounting portion 101 is recessed from the top toward the bottom of the casing 10 to form a first mounting groove 102 for mounting the power head 40 at the top of the casing 10, and a grass collection channel 13 is formed at the bottom of the casing 10, and the lower surface of the mounting portion 101 is lower than the lower surface of the grass collection channel 13, so that the grass collection channel 13 is arranged around the mounting portion 101.

[0148] The mounting portion 101 is recessed relative to the top surface of the housing 10, forming a first mounting groove 102 between the mounting portion 101 and the top of the housing 10 for mounting the power head 40. This recessed structure of the mounting portion 101 creates a grass collection channel 13 surrounding the mounting portion 101 at the bottom of the housing 10. This arrangement reduces the height of the power head 40 when mounted on the housing 10, thereby reducing the overall height of the lawn mower 1 corresponding to the power head 40.

[0149] In this way, when the lawn mower 1 is packaged, the size of the packaging box can be shortened, and both the packaging cost and the transportation cost are reduced.

[0150] A mounting hole 104 is provided at the center of the housing 10 , and the first mounting groove 102 surrounds the mounting hole 104 and is connected to the mounting hole 104 , so that the power head 40 can be accommodated as a whole in the first mounting groove 102 , and the motor 41 passes through the mounting hole 104 and is fixed in the mounting hole 104 .

[0151] The mounting portion 101 is provided with a through first through-hole 105, which is located adjacent to the mounting hole 104 to securely lock the power head 40 within the first mounting slot 102. Specifically, there are three first through-holes 105, evenly distributed around the circumference of the mounting hole 104. In this embodiment, the first through-holes 105 are screw holes, and the power head 40 is also provided with corresponding screw holes, so that screws can be passed through the first through-holes 105 and the screw holes to secure the power head 40 to the mounting portion 101.

[0152] In other embodiments, the fixed connection between the power head 40 and the mounting portion 101 may be other methods, such as snap connection, riveting, etc., which are not limited here.

[0153] The housing 10 is further provided with a grass discharge port 106 on a side facing the cutting assembly. The grass discharge port 106 is connected to the grass collection channel 13 so that the grass in the grass collection channel 13 can be discharged from the grass discharge port 106. Specifically, the mounting portion 101 includes a first portion 1011 and a second portion 1012. The first portion 1011 is provided at the center of the housing 10. The mounting hole 104 is provided in the first portion 1011. The second portion 1012 connects the first portion 1011 to the side wall of the housing 10, so that the grass collection channel 13 is located outside the first portion 1011 and the second portion 1012 and is separated by the second portion 1012. At this time, the grass collection channel 13 cannot form a complete ring. When viewed from the bottom of the housing 10 (i.e., when viewing the housing 10 from an upward perspective), the grass discharge port 106 is provided at the end of the grass collection channel 13 in the counterclockwise direction.

[0154] In this embodiment, viewed from the bottom of the housing 10, the cutter 42 rotates in a counterclockwise direction, so the grass discharge port 106 is arranged at the end of the grass collection channel 13 in the counterclockwise direction, so that when the cutter 42 rotates, the cut grass clippings will enter the grass collection channel 13 driven by the cutter 42 and flow along the grass collection channel 13, and finally be discharged through the grass discharge port 106.

[0155] A first sealing member 405 is provided on the side of the housing 10 facing the cutting assembly. The first sealing member 405 covers the mounting hole 104 and is fixedly connected to the housing 10, thereby achieving a sealed connection between the motor 41 and the housing 10. Specifically, a second through-hole 4051 is formed at the center of the first sealing member 405. The second through-hole 4051 communicates with the mounting hole 104. The output shaft 21 of the motor 41 passes through the mounting hole 104 and the second through-hole 4051 and is connected to the cutting blade 42. Therefore, when the output shaft 21 of the motor 41 rotates, the cutting blade 42 can be driven to rotate synchronously.

[0156] An annular wall 107 is protruding from the side of the housing 10 facing the cutting assembly. The first sealing member 405 is accommodated in a receiving space 108 enclosed by the annular wall 107. A third through-hole 4052 is defined at the outer edge of the first sealing member 405, allowing a third locking member 406 to pass through the third through-hole 4052 to lock and secure the first sealing member 405 to the housing 10. In this embodiment, the annular wall 107 is protruding from the bottom of the first portion 1011 of the mounting portion 101, and the receiving space 108 is formed by the annular wall 107 and the bottom wall of the first portion 1011.

[0157] The first seal 405 provides a better sealing effect on the bottom of the lawn mower 1, so that no grass will run into the motor 41 during the mowing process. After the lawn mower 1 completes the mowing work, the bottom of the housing 10 can be directly flushed with a high-pressure water gun without letting water rush into the motor 41.

[0158] As shown in Figures 29 to 33 in conjunction with Figure 23, the power head 40 further includes a base 4022 located above the housing 10, a protective shell 4023 connected to the base 4022, a control panel 4024 housed in the protective shell 4023, and a volute 4025 disposed near the control panel 4024. An air inlet 40221 is provided on the side of the casing 10, and the control panel 4024 is correspondingly arranged above the air inlet 40221. A first air inlet 40251 and a first air outlet 40252 are provided on the volute 4025, and the first air inlet 40251 opens toward the control panel 4024, so that the airflow entering from the air inlet 40221 will first pass through the control panel 4024, and then enter the volute 4025 from the first air inlet 40251 of the volute 4025, and finally be discharged from the first air outlet 40252, so that the heat on the control panel 4024 can be taken away.

[0159] The air inlet holes 40221 are arranged in a straight line and are arranged on the outside of the motor 41 so that external airflow enters the base body 4022 from the side of the motor 41. The protective shell 4023 is hollow, and the air inlet holes 40221 are connected to the inner cavity of the protective shell 4023. The control board 4024 is vertically arranged in the protective shell 4023. In this embodiment, the protective shell 4023 is made of metal, preferably an aluminum alloy shell. This is because aluminum alloy transfers heat faster, and the generated heat can be quickly discharged through the aluminum alloy shell, so that the lawn mower 1 will not stop working due to the excessive temperature of the control board 4024. In addition, heat dissipation ribs are also provided on the outside of the aluminum alloy shell to further enhance the heat dissipation effect. In other embodiments, the material of the protective shell 4023 can also be other, which is not limited here.

[0160] The volute 4025 is fixed above the motor 41. The first air inlet 40251 of the volute 4025 faces the control board 4024, and the upper surface of the control board 4024 is substantially flush with the upper surface of the volute 4025, so that the airflow passing through the control board 4024 can all enter the volute 4025 through the first air inlet 40251. A first fan 40250 is provided in the volute 4025. The first air outlet 40252 faces the side of the base 4022 and is aligned with the air outlet on the power head 40. When the motor 41 is running, air enters from the air inlet 40221 at the bottom of the base 4022, passes through the control board 4024 inside the protective shell 4023, and then passes through the volute 4025 above the motor 41, and finally flows out from the air outlet on the side of the power head 40. This is equivalent to having airflow blowing towards the control board 4024 all the time, and the control board 4024 is fixed in the protective shell 4023, and the protective shell 4023 also has the function of heat dissipation, so that the control board 4024 will not be damaged due to excessive temperature, and the power head 40 or even the entire lawn mower 1 will not stop working.

[0161] The bottom of the volute 4025 is provided with a mounting plate 40253, and the mounting plate 40253 is provided with a mounting post 40254. The mounting post 40254 has a locking hole 40255, so that the volute 4025 can be fixed above the motor 41 by screws passing through the locking hole 40255. When the volute 4025 is fixed above the motor 41, airflow is continuously passed through the first air inlet 40251 of the volute 4025, thereby dissipating heat from the motor 41 and enabling the motor 41 to operate continuously and stably without malfunctioning due to excessive temperature.

[0162] In the front-to-back direction (i.e., the forward direction of the lawn mower 1), the control board 4024 is arranged in front of the volute 4025, and a battery pack assembly 4026 is arranged behind the volute 4025, and the control board 4024, the volute 4025 and the battery pack assembly 4026 are all accommodated in the base 4022. The side of the base 4022 is provided with an external interface 4027 electrically connected to the battery pack assembly 4026, and the external interface 4027 is used to plug in an external power supply to jointly power the lawn mower 1. The external power supply is preferably a backpack battery, and the backpack battery can be connected in series, in parallel, or in series and parallel with the battery pack assembly 4026 inside the power head 40, which is not limited here. The provision of the external interface 4027 can extend the working time of the lawn mower 1 and improve the working efficiency of the lawn mower 1.

[0163] The battery pack assembly 4026 includes a battery pack housing 40261, a battery pack cover 40262 pivotally and snap-connected to the battery pack housing 40261, and a battery pack housed within a battery cavity defined by the battery pack housing 40261 and the battery pack cover 40262. A first pivoting portion 40263 is provided at one end of the battery pack housing 40261, and a second pivoting portion 40264 is provided at one end of the battery pack cover 40262. The first pivoting portion 40263 is positioned between two adjacent second pivoting portions 40264, and a pivot axis passes through the first and second pivoting portions 40263 and 40264 to connect the battery pack housing 40261 and the battery pack cover 40262. The battery pack cover 40262 can be pivoted open relative to the battery pack housing 40261, making it easier to remove the battery pack.

[0164] A first latch 40265 is provided at the other end of the battery pack housing 40261, and a snap-fit ​​portion 40266 is provided at the other end of the battery pack cover 40262. The snap-fit ​​portion 40266 has a snap-fit ​​groove 40267 and an abutment portion 40268 extending into the snap-fit ​​groove 40267. The abutment portion 40268 extends downwardly into the snap-fit ​​groove 40267. When the battery pack cover 40262 is closed, the first latch 40265 engages with the abutment portion 40268, thereby retaining the first latch 40265 within the snap-fit ​​groove 40267. This secures the battery pack cover 40262 to the battery pack housing 40261. Of course, in other embodiments, the battery pack cover 40262 and the battery pack housing 40261 may be secured together using other methods, which will not be described in detail herein and are not intended to limit the connection.

[0165] In summary, the lawn mower 1 of the present invention forms a first mounting groove 102 for mounting the power head 40 at the top of the housing 10 by configuring the mounting portion 101 on the housing 10 to be recessed from the top toward the bottom. This forms a grass collection channel 13 at the bottom of the housing 10, with the lower surface of the mounting portion 101 being lower than the lower surface of the grass collection channel 13, so that the grass collection channel 13 surrounds the mounting portion 101. This arrangement maintains the grass removal effect while also lowering the height at which the power head 40 is mounted on the housing 10. This reduces packaging size during shipping, increases the number of boxes that can be packed at once, and saves on packaging and shipping costs.

[0166] Furthermore, by providing an air inlet 40221 on the side of the base 4022 facing the housing 10, and positioning the control board 4024 above the air inlet 40221, and simultaneously providing a first air inlet 40251 and a first air outlet 40252 on the volute 4025, with the first air inlet 40251 opening toward the control board 4024, air entering through the air inlet 40221 preferentially passes through the control board 4024, then enters the interior of the volute 4025 through the first air inlet 40251, and finally exits through the first air outlet 40252. This dissipates heat from the motor 41 and the control board 4024, preventing the power head 40 from being damaged or even malfunctioning due to excessive temperatures of the motor 41 and the control board 4024.

[0167] 34 to 36 , a power head 40 for a lawn mower is shown, comprising a power head housing 43, a battery compartment 432, and a motor 41. The power head housing 43 defines a second receiving chamber 4311, which receives the battery compartment 432 and the motor 41. The motor 41 is positioned below the battery compartment 432.

[0168] The power head housing 43 has a second air inlet 4315 at the top and a second air outlet 4316 at the bottom. The second air outlet 4316 is located near the motor 41. A guide air duct (indicated by the arrow in the figure) is provided at the second air inlet 4315. The guide air duct is used to guide the airflow entering through the second air inlet 4315 into the second storage cavity 4311, and then down along the battery pack cavity 432 into the motor 41, and then discharged from the second air outlet under the influence of the motor 41. In this way, the flowing air forms an air path, and under the influence of the guide air duct, the air passes through the battery pack cavity 432 and the motor 41, thereby cooling and dissipating the heat of the battery pack cavity 432 and the motor 41 at the same time.

[0169] The power head housing 43 includes a shell 4312 and a cover 4313. The shell 4312 includes a first shell 43121 and a second shell 43122 with the same structure. The first shell 43121 and the second shell 43122 are assembled with each other and arranged around the outside of the power head 40. The cover 4313 is arranged above the shell 4312 and is rotatably connected to the shell 4312 and can be opened or closed relative to the shell 4312.

[0170] The power head housing 43 also includes a second base 4314, which is disposed below the shell 4312 and fixedly connected to the shell 4312. The cover 4313, the shell 4312, and the second base 4314 are assembled to form a second storage cavity 4311 for accommodating the battery pack cavity 432 and the motor 41. The second air inlet 4315 is disposed at the top of the shell 4312, and the second air outlet 4316 is disposed on the second base 4314. The second base 4314 has good thermal conductivity. In one embodiment, the second base 4314 is made of metal.

[0171] The power head 40 also includes an air guide plate, which cooperates with the battery pack cavity 432 and the motor 41 to form a complete guide air duct, so that the air flow enters from the second air inlet 4315, passes through the battery pack cavity 432 and the motor 41, and is discharged from the second air outlet 4316 to dissipate heat from the battery pack cavity 432 and the motor 41.

[0172] As shown in FIG41 , the air deflector includes a first air deflector 4351 and a second air deflector 4352. One end of the first air deflector 4351 is fixed to the top of the power head housing 43, and the other end extends into the second storage cavity 4311 and is spaced apart from the inner sidewall of the power head housing 43. The air guide duct is formed between the first air deflector 4351 and the inner sidewall of the power head housing 43. The first air deflector 4351 is fixed between the cover 4313 and the housing 4312. There are two first air deflectors 4351, one on each side of the power head 40.

[0173] As shown in Figures 37 and 38, the first air guide plate 4351 includes a first air guide plate 43511 partially covering the shell 4312 and a second air guide plate 43512 extending from the first air guide plate 43511 into the second storage cavity 4311. The first air guide plate 43511 and the second air guide plate 43512 are perpendicular to each other, and the guide air duct is formed between the second air guide plate 43512 and the inner side wall of the power head housing 43.

[0174] In this embodiment, a reserved hole 435110 is provided on the first air guide plate 43511 , and a corresponding reserved column is provided on the cover body 4313 . The reserved column is received in the reserved hole 435110 to achieve a fixed connection between the cover body 4313 and the first air guide plate 43511 .

[0175] The first air deflector 43511 is provided with a shielding edge 435111 extending toward the exterior of the housing 4312. When the first air deflector 43511 is positioned on top of the housing 4312, the shielding edge 435111 covers the second air inlet 4315. The second air inlet 4315 is configured as a Venetian blind. The first air deflector 43511 is further provided with a limiting strip 435112. When the first air deflector 43511 is positioned on top of the housing 4312, the limiting strip 435112 is positioned outside the second air inlet 4315.

[0176] The power head 40 further includes a prefabricated plate 4326 , which is disposed between the battery pack cavity 432 and the second air guide plate 43512 to fixedly connect the battery pack cavity 432 and the second air guide plate 43512 .

[0177] A ventilation area 43260 is defined between the prefabricated panel 4326 and the battery pack cavity 432. This ventilation area 43260 communicates with the air guide duct. After airflow enters the air guide duct through the second air inlet 4315, it flows along the second air guide vanes 43512 into the ventilation area 43260 and then into the battery pack cavity 432 through the ventilation area 43260. Ribs are defined on the housing 4312. When the housing 4312 and the cover 4313 are secured, these ribs tightly engage the second air guide vanes 43512, forcing airflow to flow down along the second air guide vanes 43512 and into the ventilation area 43260.

[0178] As shown in Figures 39 and 40 , the battery pack cavity 432 is used to accommodate a battery pack and includes a first battery pack cavity 4321 and a second battery pack cavity 4322 arranged parallel to each other. A gap 4320 is left between the first battery pack cavity 4321 and the second battery pack cavity 4322. Airflow descends into the motor 41 along the gap 4320 and passes through the battery pack cavity 432 to dissipate heat from the battery pack within the battery pack cavity 432. In other embodiments, the number of battery pack cavities 432 can be adjusted according to actual needs and is not limited here.

[0179] The battery cavity 432 is tilted, including a relatively low first end 4324 and a second end 4325 tilted upward from the first end 4324. The motor 41 is positioned below the second end 4325. In other words, the powerhead 40 is tilted to fully accommodate the battery cavity 432. This tilt also makes the interior of the powerhead 40 more compact, improving space utilization. Furthermore, the arrangement of various components in different locations allows for the creation of a smooth airflow path.

[0180] The motor 41 includes a motor body 4331 and a second fan 4332. The second fan 4332 is connected to the motor body 4331 and is located below the motor body 4331. The second fan 4332 is opposite to the second air outlet 4316, so that the airflow sinking into the motor 41 can be discharged from the second air outlet 4316 under the action of the second fan 4332.

[0181] The second air guide plate 4352 is connected between the second fan 4332 and the second air outlet 4316 , and is used to guide the airflow flowing out of the motor 41 to be discharged to the second air outlet 4316 .

[0182] Please refer to Figures 42 and 43, the power head 40 also includes a flip-cover locking device 4310, which includes a flip-cover 437 and a second elastic member 438 arranged between the cover body 4313 and the flip-cover 437 and capable of being deformed under the action of external force; two second elastic members 438 are provided and are spaced apart from each other.

[0183] One end of the flip cover 437 is pivotally connected to the cover body 4313, and the other end is connected to the second buckle of the housing 4312. The flip cover 437 has a locked state and an activated state. When the flip cover 437 is in the locked state, the second elastic member 438 is in a free state, the flip cover 437 is fixedly engaged with the housing 4312, and the cover body 4313 is in a closed state. When the flip cover 437 is in the activated state, the second elastic member 438 is compressed, the flip cover 437 is released from the housing 4312 and can rotate relative to the cover body 4313, so that the cover body 4313 can be opened relative to the housing 4312. In other words, the flip cover 437 is used to lock the cover body 4313 and the housing 4312, so that the power head housing 43 is normally closed, and the cover body 4313 can be opened when necessary to expose the interior of the power head housing 43. When the cover 4313 is opened, the battery pack cavity 432 is exposed so that the battery pack can be replaced.

[0184] In this embodiment, when the flip cover 437 is in an activated state, the cover body 4313 is not in contact with the housing 4312 and can be clearly observed so as to be locked in time.

[0185] A movable area is left between the cover 4313 and the flip cover 437. When the flip cover 437 is pushed toward the cover 4313, the second elastic member 438 is squeezed and deformed, allowing the flip cover 437 to rotate relative to the cover 4313. When the flip cover 437 is released, the second elastic member 438 returns to its original position, and the rebound force causes the flip cover 437 to return to its original position. The movable area is the distance that the second elastic member 438 is compressed. In other embodiments, other locking methods may be selected, such as providing an extended locking block on the flip cover 437, which is rotated to switch the flip cover 437 between a locked and an activated state. In the locked state, the flip cover 437 is fixed to the cover 4313, and the locking block cooperates with the housing 4312 to secure the cover 4313 to the housing 4312. This is not limited to this.

[0186] In this embodiment, an extension area 4374 is provided outwardly at the top of the flip cover 437, and the extension area 4374 serves as a push button. When in use, the finger surface is placed on the third cover plate 4371, and the fingertip abuts against the extension area 4374, and the extension area 4374 is pushed upward to move the flip cover 437 within the active area.

[0187] The cover 4313 is provided with a stopper 43131, and the flip cover 437 is provided with a corresponding stopper 4370. The ends of the second elastic member 438 are respectively mounted on the stopper 43131 and the stopper 4370, and can deform as the flip cover 437 moves within the movable area. Of course, in other embodiments, the second elastic member 438 can be directly fixed to the housing 4312 and the cover 4313 using screws or other fixing accessories. It is only necessary to ensure that the second elastic member 438 can be compressed and reset within a certain range. This is not limited to this.

[0188] The flip cover 437 includes a third cover plate 4371 and a connecting shaft 4372 connected to the third cover plate 4371. The third cover plate 4371 is provided with a fifth through-hole 43710. The connecting shaft 4372 passes through the fifth through-hole 43710 and is movably connected to the third cover plate 4371, so that the third cover plate 4371 is pivotally connected to the cover body 4313 through the connecting shaft 4372.

[0189] The cover body 4313 is provided with a protrusion 43132 that protrudes toward the third cover plate 4371. The third cover plate 4371 is correspondingly provided with an engaging portion 4373. The engaging portion 4373 is sleeved outside the protrusion 43132 to confine the connecting shaft 4372 between the protrusion 43132 and the engaging portion 4373. Two protrusions 43132 are provided, one on each side of the two second elastic members 438.

[0190] The protrusion 43132 is provided with a recessed groove 431320 on the side facing the third cover plate 4371. When the engaging portion 4373 is sleeved onto the outside of the protrusion 43132, the recessed groove 431320 and the engaging portion 4373 together form a receiving cavity, and the connecting shaft 4372 is received within the receiving cavity. The third cover plate 4371 is provided with an assembly groove 43711, and the engaging portion 4373 is received within the assembly groove 43711.

[0191] In this embodiment, the engaging portion 4373 is an independent component. After the connecting shaft 4372 is placed in the groove 431320, the engaging portion 4373 is passed through the assembly groove 43711 to cooperate with the groove 431320 to achieve the fixation of the engaging portion 4373 and the cover body protrusion 43132. Then, the connecting shaft 4372 is fixed in the receiving cavity to fix the third cover plate 4371 to the cover body 4313. The protrusion 43132 and the engaging portion 4373 are each provided with a screw hole. When the protrusion 43132 and the engaging portion 4373 are installed, the two screw holes are aligned with each other, and screws are passed through the screw holes to fix the protrusion 43132 and the engaging portion 4373. In other embodiments, the engaging portion 4373 may be configured as a prefabricated component integrally formed with the flip cover 437 , so that when the connecting shaft 4372 is installed, the flip cover 437 and the cover body 4313 are fixed simultaneously.

[0192] A second snap fastener 43123 is provided on one side of the shell 4312 close to the cover body 4313 , and a corresponding fastening member 4375 is provided on the flip cover 437 . The second snap fastener 43123 cooperates with the fastening member 4375 to achieve a second snap connection between the flip cover 437 and the shell 4312 .

[0193] As shown in FIG41 , the outer side of the power head housing 43 is provided with a second mounting slot 4318 for receiving a mounting strap 4319. The second mounting slot 4318 vertically divides the power head 40 into two parts. The top of the housing 4312 is provided with a through slot. A first connecting member 4317 located below the mounting strap 4319 is passed through the through slot and fixedly connected to the cover 4313. The first connecting member 4317 is generally crescent-shaped and has a plurality of second positioning holes 43171 formed therein. The cover 4313 is provided with corresponding prefabricated columns 43133, which are received in the second positioning holes 43171 to achieve a fixed connection between the cover 4313 and the first connecting member 4317. In other words, the cover 4313 is fixedly connected to the mounting strap 4319 via the first connecting member 4317. The mounting belt 4319 covers both the shell 4312 and the cover 4313 , and the first connecting member 4317 is partially accommodated in the first air guide plate 4351 .

[0194] To sum up, the power head 40 in this embodiment is provided with a second air inlet 4315 and a second air outlet 4316 on the power head housing 43, so that the air flow enters the interior of the power head 40 to dissipate heat to the power head 40. At the same time, by providing a guide air duct, a first air guide plate 4351 and a second air guide plate 4352, the air flow entering the second storage cavity 4311 is discharged from the second air outlet after passing through the battery pack cavity 432 and the motor 41 under the action of the guide air duct, so as to dissipate heat to the battery pack and the motor 41 at the same time.

[0195] Please refer to Figures 44, 45 and 48. A motor 41 is provided in the lawn mower for driving the lawn mower to operate. The motor 41 includes a fourth shell 411, a controller 413, a motor body 414 and a connecting device 412. A partition plate 4115 is provided in the fourth shell 411 to separate the internal space of the fourth shell 411 into a first cavity 4111 and a second cavity 4113. Cooling liquid is provided in the first cavity 4111. The controller 413 is accommodated in the first cavity 4111. The controller 413 is cooled by the cooling liquid to improve the cooling effect of the controller 413. The motor body 414 is accommodated in the second cavity 4113. One end of the connecting device 412 is connected to the controller 413 and the other end is connected to the motor body 414. The controller 413 can be electrically connected to the motor body 414 through the connecting device 412 to control the start or stop of the motor body 414.

[0196] The partition plate 4115 is integrally formed with the fourth shell 411, which improves the connection strength between the partition plate 4115 and the fourth shell 411. At the same time, the first cavity 4111 and the second cavity 4113 are separated by the partition plate 4115, avoiding the first cavity 4111 and the second cavity 4113 from being connected at the partition plate 4115. This arrangement prevents the coolant in the first cavity 4111 from flowing into the second cavity 4113, which on the one hand improves the heat dissipation effect of the controller 413, and on the other hand avoids the coolant from hindering the rotation of the motor body 414 and causing damage.

[0197] Since the controller 413 is completely immersed in the coolant, the heat generated by the controller 413 is directly transferred to the coolant. Through the alternating flow of hot and cold coolants, the heat is transferred to the fourth shell 411, and the heat is conducted to the external environment through the fourth shell 411. The coolant mainly transfers the heat of the controller 413. At the same time, since one side of the partition plate 4115 is in contact with the motor body 414, the heat generated by the motor body 414 can be transferred to the side of the partition plate 4115 close to the first cavity 4111 and contacted with the coolant. The heat on the partition plate 4115 is transferred to the fourth shell 411 through the coolant to achieve heat dissipation of the motor body 414. The coolant in this embodiment can dissipate heat for both the controller 413 and the motor body 414. Since the coolant has a high thermal conductivity, it can improve the heat dissipation effect, so that both the motor body 414 and the controller 413 can continue to operate at high power.

[0198] The fourth shell 411 includes a first cover plate 4112, a second cover plate 4114 and a sealing ring, wherein the first cover plate 4112 and the second cover plate 4114 are respectively arranged at both ends of the fourth shell 411, the first cover plate 4112 is connected to the fourth shell 411 to seal the controller 413 in the first cavity 4111, and the second cover plate 4114 is connected to the fourth shell 411 to confine the motor body 414 in the second cavity 4113, the first cover plate 4112 and the fourth shell 411 as well as the second cover plate 4114 and the fourth shell 411 are both fastened by screws, and the sealing ring is arranged between the first cover plate 4112 and the fourth shell 411, and the sealing ring is squeezed by the first cover plate 4112 and the fourth shell 411, and is deformed to seal the first cavity 4111. By providing a first cover plate 4112 and a sealing ring sealed with the fourth shell 411, the controller 413 can be installed in the first cavity 4111, and the controller 413 and the coolant are sealed in the first cavity 4111 by the first cover plate 4112. In this way, when the controller 413 is damaged or the coolant deteriorates, the first cover plate 4112 can be opened to replace or repair the controller 413 or the coolant, thereby further extending the service life of the motor 41.

[0199] The controller 413 is fixedly connected to the partition plate 4115, and the coolant fills the first cavity 4111. The heat of the controller 413 and the partition plate 4115 is conducted to the surface of the fourth shell 411 through the coolant for heat dissipation. The coolant is heated in the first cavity 4111 and undergoes a cross-flow of hot and cold to transfer the heat from the controller 413 and the partition plate 4115 to the fourth shell 411. The coolant fills the first cavity 4111 and does not flow from the first cavity 4111 to the outside of the fourth shell 411 or from the outside of the fourth shell 411 to the first cavity 4111. This improves the sealing of the first cavity 4111 and simplifies the structure of the motor 41. The coolant has insulating properties, preventing different electronic components on the controller 413 from conducting electricity through the coolant, which could damage the controller 413.

[0200] In one embodiment, the coolant is contained in the first cavity 4111 and does not circulate with external devices to improve the sealing of the first cavity 4111 and simplify the structure of the motor 41. In other embodiments, a circulation structure can also be set on the outside of the fourth shell 411 to circulate the coolant in the first cavity 4111 to improve the cooling efficiency. The specific structure and connection method of the circulation structure can be designed according to the existing technology and are not limited here.

[0201] As shown in Figures 45 to 47 , the partition plate 4115 is provided with a locking post 41153 extending toward the first cavity 4111. The motor 41 includes a second fixing member 415, through which the controller 413 is fixedly connected to the locking post 41153. The locking post 41153 is cylindrical and has a second locking hole 41154 defined therein. The controller 413 has a corresponding hole, allowing the second fixing member 415 to pass through the controller 413 and be received in the second locking hole 41154, thereby securing the controller 413 to the locking post 41153. The second fixing member 415 is a screw, and the second locking hole 41154 is a threaded hole.

[0202] The second locking hole 41154 is not provided on some locking columns 41153. Instead, a positioning column 41155 is provided on the locking column 41153. When the controller 413 and the partition plate 4115 are assembled, the positioning column 41155 extends into the hole provided on the controller 413 to position the controller 413, thereby improving the assembly accuracy of the controller 413 and the partition plate 4115.

[0203] Please refer to Figures 46 to 49 and in combination with Figures 51 and 52. A connecting hole 41152 is provided on the partition plate 4115. The connecting device 412 includes a second connecting member 4121 and a second sealing member 4123. The second connecting member 4121 is accommodated in the connecting hole 41152, and the two ends of the second connecting member 4121 are electrically connected to the motor body 414 and the controller 413 respectively. The second sealing member 4123 is arranged between the second connecting member 4121 and the partition plate 4115. The second connecting member 4121 is accommodated in the connecting hole 41152, and the two ends of the second connecting member 4121 are respectively accommodated in the first cavity 4111 and the second cavity 4113, wherein one end of the second connecting member 4121 is provided with a limiting portion 41214, which protrudes from the second connecting member 4121 toward the surroundings and can cover the connecting hole 41152. The second sealing member 4123 is sleeved on the second connecting member 4121 and placed between the limiting portion 41214 and the partition plate 4115 to seal the connecting hole 41152 to prevent the coolant in the first cavity 4111 from flowing into the second cavity 4113. The limiting portion 41214 is arranged in the first cavity 4111, and the second sealing member 4123 is also arranged in the first cavity 4111. In other embodiments, the limiting portion 41214 and the second sealing member 4123 can also be arranged in the second cavity 4113. As long as the purpose of sealing the connecting hole 41152 can be achieved, there is no limitation here.

[0204] The connecting device 412 also includes a conductive member 4122. A conductive hole 41211 is provided on the second connecting member 4121. The conductive member 4122 is received within the conductive hole 41211, and the two ends of the conductive member 4122 are respectively electrically connected to the controller 413 and the motor body 414. The conductive member 4122 is arranged in an elongated strip shape, and the two ends of the conductive member 4122 extend from the conductive hole 41211 to electrically connect to the controller 413 and the motor body 414, respectively. This allows the controller 413 to supply power to the motor body 414 to control the start and stop of the motor body 414, and also to control the speed of the motor body 414. The conductive hole 41211 has the same shape and size as the conductive member 4122, so that the conductive member 4122 is received within the conductive hole 41211 and seals the conductive hole 41211 to prevent the coolant in the first cavity 4111 from flowing into the second cavity 4113.

[0205] In one embodiment, the conductive part 4122 is a metal product, the second connecting part 4121 is a plastic product, and the conductive part 4122 and the second connecting part 4121 are integrally formed, that is, when the second connecting part 4121 is produced, the conductive part 4122 is directly injection molded into the second connecting part 4121 to achieve sealing between the conductive part 4122 and the second connecting part 4121. Of course, in other embodiments, the conductive part 4122 can be installed on the second connecting part 4121 through the conductive hole 41211. At this time, a sealing structure is provided between the conductive part 4122 and the second connecting part 4121; the conductive part 4122 and the second connecting part 4121 can also be connected by a sealant; the conductive part 4122 can also be omitted, and the second connecting part 4121 is made of metal material, which can also achieve electrical connection between the controller 413 and the motor body 414. There is no restriction here.

[0206] There are three conductive parts 4122, which are cylindrical and correspond to the three wires of three-phase alternating current respectively. There are three conductive holes 41211 correspondingly, and the conductive holes 41211 are evenly distributed on the second connecting part 4121 to avoid breakdown between the three-phase alternating current. In other embodiments, when the motor body 414 uses direct current, there can also be one or two conductive parts 4122, and positive and negative currents are transmitted through the conductive part 4122, or only positive current is transmitted, and a grounding wire is set on the motor body 414 to transmit negative current. There is no restriction here.

[0207] Referring to Figures 46, 49, and 50 in conjunction with Figures 51 and 52, one end of the conductive member 4122 is fixedly connected to the controller 413. The motor body 414 includes a terminal 4141, through which the other end of the conductive member 4122 is connected to the motor body 414. One end of the conductive member 4122, located within the first cavity 4111, can abut against the controller 413, electrically connecting the controller 413 and the conductive member 4122 to supply power to the conductive member 4122. The motor body 414 includes a stator 4143 and a rotor 4144. The rotor 4144 is housed within the stator 4143. The terminal 4141 is electrically connected to the stator 4143, allowing the controller 413 to supply power to the stator 4143 via the terminal 4141, thereby driving the rotor 4144 to rotate and output power.

[0208] In this embodiment, the conductive member 4122 is provided with a first wiring hole 41221 at one end of the first cavity 4111, and a corresponding first wire hole 4131 is provided on the controller 413. The motor 41 includes a second fixing member 415, and the second fixing member 415 passes through the first wire hole 4131 and is accommodated in the first wiring hole 41221 to fix the connection between the conductive member 4122 and the controller 413, so that the controller 413 can supply power to the conductive member 4122. Of course, in other embodiments, the conductive member 4122 and the controller 413 can be directly welded so that the controller 413 can supply power to the conductive member 4122. There is no limitation here.

[0209] A second wiring hole 41222 is provided at one end of the conductive member 4122 arranged in the second cavity 4113, one end of the terminal block 4141 is connected to the coil in the stator 4143, and a second wire hole 4142 is provided on the other end. The second fixing member 415 passes through the second wire hole 4142 and is accommodated in the second wiring hole 41222, so that the terminal block 4141 can be installed on the conductive member 4122, thereby realizing electrical connection between the conductive member 4122 and the terminal block 4141, and then electrically connected to the stator 4143, so that the controller 413 supplies power to the stator 4143, thereby driving the rotor 4144 to rotate. In other embodiments, the conductive member 4122 can also be welded to the terminal block 4141, which is not limited here.

[0210] Referring to Figures 46 and 47 , the second connecting member 4121 is provided with a fixing portion 41212 and a fixing hole 41213 defined in the fixing portion 41212. The partition plate 4115 is provided with a slot 41151 corresponding to the fixing hole 41213. The second fixing member 415 passes through the fixing hole 41213 and is received within the slot 41151, thereby connecting the second connecting member 4121 and the partition plate 4115. The fixing portions 41212 extend outward from the outer edge of the second connecting member 4121. Three fixing portions 41212 are provided and evenly distributed along the outer edge of the second connecting member 4121. Three corresponding slots 41151 are provided, and the slots 41151 are blind holes. The slot 41151 is provided on the side of the partition plate 4115 facing the first cavity 4111. The fixing portion 41212 extends outward from the limiting portion 41214. The fixing hole 41213 is provided in the middle of the fixing portion 41212. The second fixing member 415 is a screw. The slot 41151 is provided with a thread that engages with the screw.

[0211] In this embodiment, the slot 41151 is provided on the side of the partition plate 4115 facing the first cavity 4111, the fixing hole 41213 is provided on the fixing portion 41212, and there are three fixing portions 41212 and three fixing holes 41213. In other embodiments, the slot 41151 can be provided on the side of the partition plate 4115 facing the second cavity 4113, the fixing hole 41213 can be provided on the limiting portion 41214, and the number of fixing holes 41213 can be set to two, five or other numbers. The number of the slots 41151 corresponds to the fixing holes 41213, and there is no restriction here.

[0212] Please refer to Figure 45, the fourth shell 411 is also provided with a wire hole 4116, the motor 41 includes a cable 416 and a sealing strip, the cable 416 passes through the wire hole 4116 and is electrically connected to the controller 413 to supply power to the controller 413, the wire hole 4116 is provided on the side wall of the fourth shell 411, and the sealing strip is provided between the cable 416 and the fourth shell 411 to achieve a sealed connection between the cable 416 and the fourth shell 411. Of course, the wire hole 4116 can also be provided on the first cover plate 4112, and the cable 416 passes through the first cover plate 4112 to supply power to the controller 413, which is not limited here.

[0213] In summary, the motor 41 of the present invention reduces the space occupied by the motor body 414 and the controller 413 by accommodating the controller 413 in the first cavity 4111 and accommodating the motor body 414 in the second cavity 4113, so that the motor 41 can be applied to products with smaller sizes; by arranging a coolant in the first cavity 4111, the controller 413 dissipates heat outwards through the coolant, thereby improving the heat dissipation efficiency of the controller 413; the controller 413 and the motor body 414 are connected by the connecting device 412, so that the connection method is simple and convenient. Jie; by arranging a second sealing member 4123 between the second connecting member 4121 and the partition plate 4115, the second connecting member 4121 and the partition plate 4115 are sealed and connected, thereby preventing the coolant in the first cavity 4111 from flowing into the second cavity 4113; by arranging a conductive member 4122 on the second connecting member 4121, the controller 413 is electrically connected to the motor body 414, and the current of the motor body 414 is controlled by the controller 413, thereby realizing that the controller 413 controls the start, stop or speed of the motor body 414.

[0214] Please refer to Figures 53 and 54, which show a lawn mower 1 including a housing 10, a motor 41, a blade fixing structure 42103, a grass collecting box 50, a traveling assembly 230 and an operating assembly 42106.

[0215] The blade fixing structure 42103 is located in the housing 10. The blade fixing structure 42103 includes a third connecting member 421 and a first blade 422 and a second blade 423 fixedly connected to the third connecting member 421. In this embodiment, two blades are used as an example, but in other embodiments, only one blade can be provided, which is not limited here. The motor 41 is partially housed in the housing 10. The motor 41 includes a motor output shaft assembly 424. The third connecting member 421 and the motor output shaft assembly 424 are connected by an interference fit and are driven by friction. Therefore, when the first blade 422 or the second blade 423 is impacted by the outside world, the first blade 422 or the second blade 423 will rotate in the radial direction relative to the motor output shaft assembly 424 with the third connecting member 421, which acts as a buffer for the motor output shaft assembly 424 and protects the entire system.

[0216] The grass collection box 50 is connected to the housing 10 and is used to collect grass cut by the blade fixing structure 42103. The travel assembly 230 is used to support the lawn mower 1 to rotate relative to the ground, allowing the operator to easily push the lawn mower 1 to perform mowing operations. The travel assembly 230 includes a pair of front wheels 231 and a pair of rear wheels 232. The operating assembly 42106 is a push rod extending upward from the rear of the lawn mower 1.

[0217] As shown in Figures 55-57, the first blade 422 includes a flat-plate-shaped first middle portion 4221 and first cutting portions 4222 located at either end of the first middle portion 4221. The first middle portion 4221 is elongated and configured to be mounted on the third connecting member 421. The first cutting portion 4222 has a first cutting edge at one end facing the blade's rotational direction, configured to cut grass blades. The first cutting portion 4222 has a gradually decreasing width at the end facing away from the blade's rotational direction. The first blade 422 has a first mating hole 4223 extending through the first blade 422 and located at its center. A third positioning hole 4224 extending through the first blade 422 is located on either side of the first mating hole 4223.

[0218] To achieve a better cutting effect and facilitate differentiation, the second blade 423 differs from the first blade 422 in shape and structure. The second blade 423 includes a second intermediate portion 4231 in the shape of a flat plate and second cutting portions 4231 located at both ends of the second intermediate portion 4231. The second intermediate portion 4231 is in the shape of an elongated rectangle and is used to be mounted on the third connecting member 421. The second cutting portion 4231 is twisted relative to the second intermediate portion 4231. The second cutting portion 4231 is provided with a second cutting edge at one end facing the direction of blade rotation for cutting grass blades. The second blade 423 has a second mating hole 4233 that passes through the second blade 423 and is located at the center. A fourth positioning hole 4234 is provided on each side of the second mating hole 4233 that passes through the second blade 423. The fourth positioning hole 4234 can be an arrow hole with an anti-foolproof function. The two arrow holes point in opposite directions, so that if the second blade 423 is reversed, it cannot be assembled, thus preventing reverse installation. The arrow holes point to the blade rotation direction of the second blade 423 in the circumferential direction, and the two arrow holes are centrally symmetrical about the center of the second matching hole 4233 .

[0219] In this embodiment, the first blade 422 and the second blade 423 are stacked and staggered. When cutting, the first blade 422 cuts the grass blades first, and then the second blade 423 cuts the grass blades again, thereby achieving a better grass chopping effect. The size of the first matching hole 4223 of the first blade 422 is larger than the size of the second matching hole 4233 of the second blade 423, and the size of the third positioning hole 4224 of the first blade 422 is larger than the size of the fourth positioning hole 4234 of the second blade 423.

[0220] As shown in Figures 58-60, the third connecting member 421 is disc-shaped and has a first surrounding area F near the edge and a second surrounding area G located inside the first surrounding area F. A rotation indicator is provided in the second surrounding area G. The third connecting member 421 is provided with a first limiting boss 4211 and a second limiting boss 4212. The first limiting boss 4211 is located in the first surrounding area F, and the second limiting boss 4212 is located in the second surrounding area G. The first blade 422 and the second blade 423 are both limited between the first limiting boss 4211 and the second limiting boss 4212, so that the first blade 422 and the second blade 423 are fixedly connected to the third connecting member 421 in the radial direction of the third connecting member 421.

[0221] The first limiting boss 4211 is arranged in a step shape and is formed with a support table 42111 and a first stop surface 42112 and a second stop surface 42113 located on both sides of the support table 42111. The first stop surface 42112 and the second stop surface 42113 are both perpendicular to the support table 42111, and the first stop surface 42112 and the second stop surface 42113 are arranged up and down; the second limiting boss 4212 is provided with a third stop surface 42121 extending in the vertical direction, the first blade 422 is limited between the first stop surface 42112 and the third stop surface 42121, and the second blade 423 is supported on the support table 42111 and is limited between the second stop surface 42113 and the third stop surface 42121.

[0222] The first limiting boss 4211 includes a first step portion 42114 protruding outward from the third connecting member 421 and a second step portion 42115 continuing to protrude outward from the end of the first step portion 42114. The first stop surface 42112 is formed at the connection between the first step portion 42114 and the third connecting member 421, and the second stop surface 42113 is formed at the connection between the first step portion 42114 and the second step portion 42115.

[0223] In this embodiment, two first limiting bosses 4211 are provided and are centrally symmetrically arranged within the first surrounding area F; two second limiting bosses 4212 are also provided and are centrally symmetrically arranged within the second surrounding area G. The two first cutting portions 4222 of the first blade 422 and the two second cutting portions 4231 of the second blade 423 can be limited in position, so that the first blade 422 and the second blade 423 are fixedly connected to the third connecting member 421 in the radial direction of the third connecting member 421.

[0224] A third mounting hole 4213 is defined at the center of the third connecting member 421 and extends through the third connecting member 421. In this embodiment, the third connecting member 421 further includes a first positioning boss 4214 and a second positioning boss 4215 extending outwardly from the first positioning boss 4214. The first positioning boss 4214 is located beside the third mounting hole 4213. The first positioning boss 4214 matches the third positioning hole 4224, and the second positioning boss 4215 matches the fourth positioning hole 4234, thereby securing the first blade 422 and the second blade 423.

[0225] The third connecting member 421 is further formed with a third surrounding area H located inside the second surrounding area G. The first positioning boss 4214 and the second positioning boss 4215 are both disposed within the third surrounding area H. The third connecting member 421 is divided into three annular areas from the outside to the inside, with the first limiting boss 4211 located at the outermost layer, the second limiting boss 4212 located at the middle layer, and the first positioning boss 4214 located at the innermost layer. When assembling the first blade 422 and the second blade 423, the first limiting boss 4211, the second limiting boss 4212, and the first positioning boss 4214 can be utilized to position and limit the first blade 422 and the second blade 423 at different positions, further ensuring the assembly stability of the first blade 422, the second blade 423, and the third connecting member 421.

[0226] The second positioning boss 4215 is an arrow-shaped boss with a foolproof design. The arrow-shaped boss points toward the direction of rotation of the second blade 423. Two second positioning bosses 4215 and two first positioning bosses 4214 are provided, and are centrally symmetrically arranged about the third mounting hole 4213. The projection of the second positioning boss 4215 on the third connecting member 421 is located within the projection of the first positioning boss 4214 on the third connecting member 421. The height of the first positioning boss 4214 is consistent with the height of the support surface 42111, thereby ensuring that the second blade 423 is stably supported on the support surface 42111.

[0227] A second fixing post 4216 is provided on the side of the third connecting member 421 facing away from the first blade 422, and the third mounting hole 4213 passes through the second fixing post 4216. The third connecting member 421 is also provided with a plurality of fan blades 4217 arranged around the second fixing post 4216. The fan blades 4217 are integrally formed with the second fixing post 4216 and the third connecting member 421. When the lawn mower 1 is working, the fan blades 4217 can dissipate heat for the entire machine.

[0228] As shown in Figures 61 and 62, in this embodiment, the motor output shaft assembly 424 includes an output shaft 4241 and a sleeve 4242 sleeved on the output shaft 4241. The output shaft 4241 is fixedly engaged with the sleeve 4242, and the sleeve 4242 is interference fit with the third connecting member 421. Thus, the lawn mower 1 can transmit torque by friction between the third connecting member 421 and the sleeve 4242. When the lawn mower 1 is in operation, if the blade is impacted by an external force, the blade will rotate radially relative to the sleeve 4242 along with the third connecting member 421. The sleeve 4242 is housed in the second fixing column 4216 and passes through the third connecting member 421. The sleeve 4242 is provided with a first mounting platform 42421 and a second mounting platform 42422. The first mounting platform 42421 matches the first matching hole 4223; the second mounting platform 42422 matches the second matching hole 4233; the first blade 422 is mounted on the first mounting platform 42421, and the second blade 423 is mounted on the second mounting platform 42422.

[0229] The blade fixing structure 42103 also includes a fastener 5, which is connected to the motor output shaft assembly 424. The interior of the sleeve 4242 is provided with a first aperture section 42423 and a second aperture section 42424 which are coaxial and have decreasing diameters. The first aperture section 42423 cooperates with the output shaft 4241, and the second aperture section 42424 is for the fastener 5 to pass through. A gasket 426 is provided between the fastener 5 and the second blade 423 to fasten the first blade 422, the second blade 423 and the third connecting member 421 to the sleeve of the motor output shaft assembly 424.

[0230] To sum up, the present application achieves fixation by providing a boss on the third connecting member 421, and the blade is installed in conjunction with the boss. The third connecting member 421 and the motor output shaft assembly 424 are interference fit connected. Therefore, when the lawn mower 1 is working, when the blade is subjected to external impact, the blade will rotate relative to the motor output shaft assembly 424 together with the third connecting member 421, which has a buffering effect on the motor output shaft assembly 424 and protects the entire machine system.

[0231] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A lawn mower having a grass chopping mode and a grass collecting mode, characterized in that: The lawn mower comprises: A casing, wherein the casing is formed with a cutting cavity and is further provided with a communication port; a door assembly, the door assembly being pivotally connected to the housing, wherein when the door assembly is in an open position, the cutting chamber is connected to the communication port, and the lawn mower is in a grass collecting mode; When the door assembly is in the closed position, the communication port is closed and the lawn mower is in a grass-chopping mode; A knob assembly, the knob assembly being connected to the door assembly and capable of driving the door assembly to move when the knob assembly is rotated; Wherein, the knob assembly includes a locking member, which has a locked state and an activated state. When the locking member is in the locked state, the knob assembly cannot rotate. When the locking member is in the activated state, the knob assembly can rotate. The rotation axis of the locking member is basically perpendicular to the rotation axis of the knob assembly.

2. The lawn mower according to claim 1, wherein: The knob assembly includes a knob base and a knob cover, one end of the locking member is received in a receiving cavity between the knob base and the knob cover, and the other end abuts against the outer wall of the housing and is rotatable along the outer wall, and the outer wall of the housing is provided with at least two locking grooves on a rotation path of the locking member, and when the other end of the locking member is received in the locking groove, the locking member is in a locked state and the knob assembly cannot be rotated; When the knob cover is pressed, one end of the locking member moves toward the knob base and the other end is disengaged from the locking groove, the locking member is in an activated state, and the knob assembly can be rotated.

3. The lawn mower according to claim 2, wherein: The locking member is roughly V-shaped, including a first locking arm, a second locking arm and a connecting arm connecting the first locking arm and the second locking arm. The first locking arm is accommodated in the storage cavity and abuts against the knob cover. The connecting arm is connected to the knob base through a rotating shaft. The second locking arm is accommodated in the locking groove.

4. The lawn mower according to claim 3, characterized in that: The knob assembly further includes an elastic member disposed in the receiving cavity. In the vertical direction, the first locking arm is clamped by the knob cover and the elastic member. When the knob cover is pressed, the first locking arm is pushed to compress the elastic member, and the second locking arm tilts upward to disengage from the locking groove, and the knob assembly is in a rotatable state. After the pressure is released, the elastic member drives the first locking arm to return to its original position, the second locking arm is accommodated in the locking groove, and the knob assembly is in a locked state.

5. The lawn mower according to claim 4, characterized in that: A positioning strip protruding toward the first locking arm is provided on the inner side wall of the knob cover, and a positioning groove is correspondingly recessed on the side of the first locking arm facing the knob cover. The positioning strip extends into the positioning groove and abuts against the first locking arm in real time.

6. The lawn mower according to claim 2, characterized in that: A positioning portion and a positioning shaft passing through the positioning portion are provided at one end of the knob base away from the locking groove, and the knob cover is provided with a receiving groove for accommodating the positioning portion. A fourth through-hole is provided on the side wall of the knob cover, and the fourth through-hole is communicated with the receiving groove for the positioning shaft to pass through, so that the knob cover is rotatably connected to the knob base.

7. The lawn mower according to claim 6, characterized in that: The housing is provided with a through hole for the door assembly to pass through. The door assembly passes through the through hole and is fixedly connected to the knob assembly so as to rotate synchronously with the knob assembly.

8. The lawn mower according to claim 7, characterized in that: The door assembly includes a transmission shaft and a stopper connected to the transmission shaft. The transmission shaft passes through the through hole and is fixedly connected to the knob assembly.

9. The lawn mower according to claim 8, characterized in that: The lawn mower further includes a guide plate fixedly connected to the casing, the guide plate being provided with a guide surface and a through hole, the guide surface being accommodated in the casing, the through hole being exposed outside the casing, and the transmission shaft passing through the through hole and being capable of rotating along the guide surface.

10. The lawn mower according to claim 9, characterized in that: The casing is also provided with a first positioning block fixedly connected to the guide plate. One end of the transmission shaft passes through the through hole to be exposed outside the casing, and the other end is fixedly connected to the first positioning block to achieve a fixed connection between the door assembly and the casing.

11. The lawn mower according to claim 1, wherein: The bottom of the housing is open to form a cutting chamber, a communication port is provided on the side wall of the housing, and the housing is further provided with a grass collecting channel connected to the communication port; the lawn mower comprises: a cutting assembly housed in the cutting cavity and capable of rotating within the cutting cavity; a grass collecting bag, detachably fixed to the rear side of the housing and connected to the cutting chamber through the grass collecting channel and the connecting port; In which, the door assembly is formed with a first curved surface and a second curved surface on the side facing the cutting assembly. When the door assembly blocks the connecting port, the first curved surface is coplanar with the inner wall surface of the cutting chamber, and together constitutes a cavity for the cutting assembly to rotate, so that the grass clippings cut by the cutting assembly are discharged from the bottom of the casing; when the door assembly is rotated to expose the connecting port, the second curved surface is located in the grass collection channel and is coplanar with the inner wall surface of the grass collection channel, so that the grass clippings cut by the cutting assembly are guided into the grass collection bag through the connecting port, the second curved surface and the grass collection channel.

12. The lawn mower according to claim 11, characterized in that: The first curved surface and the second curved surface are vertically offset, and at least one end of the first curved surface and the second curved surface share a common edge.

13. The lawn mower according to claim 11, wherein: The first curved surface is an arc surface, and the curvature radius of the first curved surface is the same as the curvature radius of the inner wall surface of the cutting cavity; the second curved surface is a single curved surface.

14. The lawn mower according to claim 11, wherein: In the vertical direction, the first curved surface is at the same height as the cutting assembly, and the second curved surface is located above the cutting assembly.

15. The lawn mower according to claim 14, characterized in that: In the vertical direction, the height of the first curved surface is one-fifth to one-quarter of the height of the second curved surface.

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