WO2021204167A1 - 割草机 - Google Patents

割草机 Download PDF

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Publication number
WO2021204167A1
WO2021204167A1 PCT/CN2021/085847 CN2021085847W WO2021204167A1 WO 2021204167 A1 WO2021204167 A1 WO 2021204167A1 CN 2021085847 W CN2021085847 W CN 2021085847W WO 2021204167 A1 WO2021204167 A1 WO 2021204167A1
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WO
WIPO (PCT)
Prior art keywords
lawn mower
baffle
grass discharge
grass
handle
Prior art date
Application number
PCT/CN2021/085847
Other languages
English (en)
French (fr)
Inventor
焦石平
乔勇
Original Assignee
苏州宝时得电动工具有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202020488687.9U external-priority patent/CN212487333U/zh
Priority claimed from CN202010264097.2A external-priority patent/CN113491197A/zh
Application filed by 苏州宝时得电动工具有限公司 filed Critical 苏州宝时得电动工具有限公司
Publication of WO2021204167A1 publication Critical patent/WO2021204167A1/zh

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D43/00—Mowers combined with apparatus performing additional operations while mowing
    • A01D43/08—Mowers combined with apparatus performing additional operations while mowing with means for cutting up the mown crop, e.g. forage harvesters

Definitions

  • the invention relates to the field of garden tools, in particular to a lawn mower.
  • Lawn mower also known as lawn mower, lawn trimmer, etc.
  • lawn mowers Due to the different needs of users, lawn mowers generally have a grass row mode and a grass chipping mode.
  • grass-crushing attachments that is, the grass-crushing attachments are separated from the whole lawn mower.
  • the grass-crushing accessory When the grass needs to be shredded, connect the grass-crushing accessory to the lawnmower and then perform the grass-crushing work, then the grass-crushing accessory and the lawnmower need to be repeatedly installed or disassembled, which brings a lot of inconvenience to the user and reduces the user's use Feel.
  • a lawn mower is provided.
  • a lawn mower comprising: a housing, including a volute formed with a cutting cavity and an air duct housing connected to the volute, and a row connected to the cutting cavity is provided on the air duct housing.
  • Grass passage the grass discharge passage is provided with a grass discharge port;
  • a cutting assembly is arranged in the cutting cavity and performs a cutting action on the target, and the working plane formed by the rotation of the cutting assembly during the mowing operation is the cutting plane;
  • the baffle is installed in the casing and has a closed position for closing the grass discharge channel and an open position for opening the grass discharge channel;
  • a driving member is provided in the casing, and the driving member further includes an operator
  • the operating part can be operated to drive the baffle to switch between the open position and the closed position; when the baffle is in the open position, it is located in the grass passage and the cutting Outside the cavity;
  • the lawn mower is provided with a vertical section perpendicular to the forward direction of the mower and perpendicular to the cutting plane,
  • a lawn mower comprising: a housing, including a volute formed with a cutting cavity and an air duct housing connected to the volute, and a row connected to the cutting cavity is provided on the air duct housing.
  • Grass channel the grass discharge channel is provided with a grass discharge port;
  • a cutting assembly is arranged in the cutting cavity and performs a cutting action on a target;
  • a driving assembly drives the cutting assembly to run;
  • the lawn mower has a target The grass discharge mode in which objects are discharged from the cutting cavity through the grass discharge channel to the outside of the casing and the grass shredding mode in which the target objects are directly chopped in the volute;
  • the lawn mower further includes a switching component ,
  • the switch assembly closes the grass discharge opening to isolate the grass discharge channel from the cutting cavity so that the lawn mower is in the grass-crushing mode, or opens the grass discharge opening to make the
  • the grass discharge channel communicates with the cutting cavity so that the lawn mower is in the grass discharge mode
  • the switching assembly includes: a ba
  • Fig. 1 is a schematic diagram of the structure of the grass-crushing mode of the lawn mower of the present application.
  • Fig. 2 is a schematic diagram of another structure of the grass-crushing mode of the lawn mower of the present application.
  • Fig. 3 is a schematic diagram of the structure of the grass harvesting mode of the lawn mower of the present application.
  • Fig. 4 is another structural schematic diagram of the grass harvesting mode of the lawn mower of the present application.
  • FIG. 5 is a schematic structural diagram of a switching component in an embodiment of the application.
  • Fig. 6 is a schematic diagram of another state of the switching component of Fig. 5.
  • FIG. 7 is a schematic structural diagram of a switching component in another embodiment of the application.
  • FIG. 8 is a schematic diagram of another state of the switching component of FIG. 7.
  • Fig. 9 is a schematic structural diagram of a lawn mower in another embodiment of the application.
  • Fig. 10 is a schematic diagram of the structure of the lawn mower shown in Fig. 9 in the grass harvesting mode.
  • Fig. 11 is a schematic diagram of the structure of the lawn mower shown in Fig. 9 in the grass-crushing mode.
  • Fig. 12 is a schematic structural diagram of the switching assembly of the lawn mower shown in Fig. 9.
  • Fig. 13 is a schematic diagram of a handle limit structure of a lawn mower in another embodiment of the application.
  • Fig. 14 is a schematic top view of the handle limiting structure of Fig. 13.
  • Fig. 15 is a structural diagram of the air duct shell and part of the volute of the lawn mower shown in Fig. 9.
  • the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.
  • the axis direction is consistent with the height direction.
  • the lawn mower 100 in a preferred embodiment of the present application includes a casing 1, a cutting assembly 3 arranged in the casing 1 and performing a cutting action on a target, and arranged in the casing 1 and used to drive the operation of the cutting assembly 3 and the wheel set 2 connected to the casing 1.
  • the target is grass.
  • the lawn mower 100 also includes a push rod seat provided on the casing 1 and an upper push rod connected to the push rod seat for the operator to grasp. The operator grasps the upper push rod Push the lawn mower 100 forward or backward.
  • the push rod seat and the upper push rod are arranged at the rear end of the casing 1, and the cutting assembly 3 is arranged at the front end of the lawn mower 100 and on the bottom surface thereof, so that the lawn mower 100 performs a mowing action when the lawn mower 100 moves.
  • the casing 1 includes a volute 13 formed with a cutting cavity and an air duct housing 14 connected to the volute 13.
  • the cutting assembly 3 is arranged in the volute 13, and the direction indicated by the arrow a in the figure is the front, correspondingly, and The opposite direction indicated by the figure a is the rear.
  • the air duct housing 14 is arranged behind the volute 13.
  • the air duct housing 14 is provided with a grass discharge channel 15 connected to the cutting cavity.
  • the grass discharge channel 15 has a grass discharge port 11 located close to the volute 13 and a grass discharge port 11 located away from the volute 13 and used to connect to an external collection device.
  • Set Caokou 16 The external collection device can be a structure such as a cloth bag, which is not specifically limited here.
  • the air duct housing 14 and the volute 13 are integrally formed, which simplifies the manufacturing process and does not require subsequent installation, and there is no gap between the two that affects the aesthetics of the overall appearance. It is true that in other embodiments, the air duct housing 14 and the volute 13 can also be connected separately after being installed.
  • the connection methods include but are not limited to: bonding, welding, clamping, etc., which are not specifically limited here. It depends on the actual situation.
  • the cutting assembly 3 is a cutter head, and the cutter head 3 includes a cutter head body and a plurality of blades pivotally mounted on the cutter head body.
  • the cutting assembly 3 can also be in other forms, such as a separate strip blade.
  • the driving assembly includes a cutting motor (not shown) for cutting grass, and the cutting motor is connected to the cutter head to drive the cutter head to rotate and perform the mowing action.
  • the cutting motor has an output shaft (not shown), and the cutting motor is directly connected with the cutter head through the output shaft and drives the cutter head.
  • a transmission device can also be provided between the cutting motor and the cutter head to transmit the power of the cutting motor to the cutter head through the transmission device to realize the rotation of the cutter head and complete the mowing.
  • the transmission device can be a pulley, a reduction gear, etc. .
  • the wheel set 2 includes a front wheel 21 at the front end of the lawn mower 100, a rear wheel 22 at the rear end, and a connecting rod 23 for keeping the distance between the front wheel 21 and the rear wheel 22 fixed.
  • the casing 1 is provided with a grass discharge opening 11.
  • the grass discharge opening 11 is opened on the rear side of the casing 1 in the advancing direction of the lawn mower 100. It is true that in other embodiments, the grass row opening 11 can also be arranged at other positions of the casing 1, such as the side of the casing 1, which is not specifically limited here, and depends on the actual situation.
  • the lawn mower 100 has a grass-crushing mode in which the target is discharged from the cutting cavity through the grass discharge channel 15 to the outside of the casing 1 and a grass-crushing mode in which the target is directly chopped in the cutting cavity.
  • a grass-crushing mode in which the target is discharged from the cutting cavity through the grass discharge channel 15 to the outside of the casing 1
  • a grass-crushing mode in which the target is directly chopped in the cutting cavity.
  • the lawn mower 100 also includes a switch assembly 4, the switch assembly 4 closes the grass discharge opening 11 so that the grass discharge channel 15 is isolated from the cutting cavity so that the lawn mower 100 is in the grass shredding mode, or The grass discharge port 11 is opened to make the grass discharge channel 15 communicate with the cutting cavity so that the lawn mower 100 is in the grass discharge mode. Only by adjusting the switching assembly 4, the grass cutting mode and the grass discharge mode of the lawn mower 100 can be switched. Fast and convenient, no need to install additional shredder accessories.
  • the switching assembly 4 includes a baffle 41 and a driving member 42 for driving the baffle 41.
  • the baffle 41 has an open position A for opening the grass discharge opening 11 and a closed position B for closing the grass discharge opening 11.
  • the driving member 42 drives the block The plate 41 moves between the open position A and the closed position B to close or open the grass discharge opening 11.
  • the baffle 41 does not cover the grass discharge opening 11 so that the grass discharge opening 11 is opened
  • the grass discharge channel 15 is in communication with the cutting cavity
  • the lawn mower 100 is in the grass harvesting mode
  • the cutting assembly 3 removes the grass under the action of the airflow. After harvesting, it is discharged from the grass discharge port 11 to the outside of the casing 1.
  • the baffle 41 shields the grass discharge opening 11 to close the grass discharge opening 11
  • the grass discharge channel 15 is isolated from the cutting cavity, and the lawn mower 100 is in the grass shredding mode, and the cut grass rotates continuously in the housing 1 and cannot It is discharged to the outside of the casing 1, and then the cutting action is performed under the cutting action of the cutting assembly 3, until the lawn mower 100 stops running, and the shredded grass falls to the ground after the lawn mower 100 stops running.
  • the casing 1 is also provided with an opening 12, and the opening 12 is arranged at the junction of the air duct shell 14 and the volute 13.
  • the baffle 41 is arranged at the grass discharge port 11, and the purpose of this setting is: the grass discharge port 11 The closer the distance to the volute 13 is, the more compact the structure of the volute 13 is, and the grass cutting effect of the lawn mower 100 is better.
  • the baffle 41 is arranged in the casing 1, and at least a part of the driving member 42 protrudes out of the casing 1 through the opening 12 for the user to drive and then drive the baffle 41 to move relative to the grass discharge opening 11.
  • the driving member 42 is connected to the air duct housing 14.
  • the driving member 42 includes a handle 421 and an unlocking member 423.
  • the unlocking member 423 is an unlocking button.
  • the unlocking member 423 may also be other.
  • the handle 421 linkage flap 41 switches between the open position A and the closed position B, and the movement path of the handle 421 linkage flap 41 between the open position A and the closed position B is basically in the same plane, so that the mowing The overall structure of the machine 100 is more compact, and the position of the baffle 41 does not need to take up much space.
  • the cutting assembly 4 also includes a connecting shaft 426 that penetrates the handle 421.
  • the connecting shaft 426 is rotatably connected or slidably connected to the casing 1, and the other end of the connecting shaft 426 is fixedly connected to the baffle 41, that is, the handle 421 is moved so that The connecting shaft 426 rotates or moves relative to the casing 1 and then drives the baffle 41 to rotate or move, so that the baffle 41 moves or rotates in the same plane.
  • the handle 421 links the baffle 41 to rotate in the same space with a rotation angle of 90°, so that the baffle 41 can be turned in the same space to open or close the grass discharge opening 11. It is true that in other embodiments, the rotation angle of the handle 421 linked to the baffle 41 can also be other, or the handle 421 links the baffle 41 to move in the same space, which is not specifically limited here, and depends on the actual situation.
  • the switching assembly 4 also includes a positioning pin 422 arranged on the handle 421, the positioning pin 422 is used to engage and position the handle 421 with the casing 1, and the connecting shaft 426 penetrates through one end of the handle 421. Because the handle 421 is connected to the air duct housing 14 and the baffle 41 through the connecting shaft 426, the handle 421 can rotate in a plane relative to the air duct housing 14 through the connecting shaft 426 so that the baffle 41 basically moves in a plane. That is, the open position A and the closed position B of the shutter 41 are substantially located in the same plane. The handle 421 is adjusted to drive the baffle 41 to move to the open position A relative to the grass discharge opening 11 to open the grass discharge opening 11.
  • the baffle 41 is located outside the grass discharge opening 11 and the grass discharge channel 15, that is, in the row
  • the baffle 41 cannot be seen in the grass mouth 11.
  • the purpose of this arrangement is that when the lawn mower 100 discharges the broken grass from the grass discharge port 11 to the outside of the casing 1, the grass clippings will not be contaminated on the baffle 41, so the phenomenon of grass clippings will not be caused.
  • the casing 1 is provided with a groove (not shown) for locking and positioning with the positioning pin 422.
  • a groove not shown
  • the opening 12 has two ends
  • the handle body 421 is moved to the two ends of the opening 12, it is fixed to the casing 1 by the positioning pin 422 respectively. Therefore, there are two grooves.
  • the shape and positioning of the two grooves The pin 422 matches. It is true that in other embodiments, the handle body 421 can also slide along the casing 1.
  • the groove may be a long groove, which is not specifically limited here, and depends on the actual situation.
  • the unlock button 423 is used to lock the handle 421 with the casing 1 to position the bezel 41, or to separate the handle 421 from the casing 1 and move relative to the casing 1 to change the position of the bezel 41.
  • the unlock button 423 is provided on the handle.
  • the linkage positioning pin 422 on the 421 moves compared to the handle 421, so that the positioning pin 422 is engaged with or disengaged from the groove.
  • the handle 421 has a hollow part, and a first through hole 424 and a second through hole 425 opened on the handle 421 and communicating with the hollow part.
  • the positioning pin 422 is arranged in the hollow part and one end of the positioning pin 422 protrudes from the first
  • the through hole 424 is engaged with the groove
  • one end of the unlocking button 423 is connected with the positioning pin 422 and one end of the unlocking button 423 protrudes from the second through hole 425.
  • Pieces (not shown). An external force is applied to press the unlocking button 423, the unlocking button 423 moves into the handle body 421 and compresses the elastic member, and at the same time drives the positioning pin 422 to move to the handle body 421, so that the handle body 421 is separated from the casing 1 and then the handle body 421 is rotated.
  • the elastic member is a spring. It is true that in other embodiments, the elastic member may also be other, which is not specifically limited here, and it depends on the actual situation.
  • the unlocking button 423 may be connected to the positioning pin 422 through a connecting member, or may be integrally formed with the positioning pin 422. In order to make the manufacturing process simple, in this embodiment, the unlocking button 423 and the positioning pin 422 are integrally formed. It is true that in other embodiments, the unlocking button 423 may also be provided separately from the positioning pin 422, which is not specifically limited here, and depends on the actual situation.
  • the driving member further includes a gear 42'.
  • the baffle 41' rotates with the gear 42' relative to the grass outlet 11.
  • the gear 42' includes a first gear body 421' and a second gear body 422' meshing with the first gear.
  • the baffle 41' includes a first baffle body 411' connected with the first gear body 421' and The second baffle body 412' is connected to the second gear body 422'.
  • the two baffle bodies 412' move relatively to make the grass discharge opening open or close. Wherein, the moving directions of the first baffle body 411' and the second baffle body 412' are opposite.
  • the gear further includes a connecting gear body 423 disposed between the first gear body 421' and the second gear body 422' and meshing with the first gear body 421' and the second gear body 422' ', the connecting gear body 423' is provided with two. It is true that in other embodiments, the number of connecting gear bodies 423' can also be other, which is not specifically limited here, and depends on actual conditions.
  • the switching assembly also includes a knob 424' connected to the gear.
  • the knob 424' can be disposed on one or more of the first gear body 421', the second gear body 422', and the connecting gear body 423' to facilitate the operation of the operator , There is no specific limitation here, it depends on the actual situation.
  • the baffle 41 has an open position A for opening the grass discharge opening 11 and a closed position B for closing the grass discharge opening 11.
  • the handle 421 linkage baffle 41 moves between the open position A and the closed position B, it is in the same plane and does not occupy space, making the lawn mower 100 more compact; when the baffle 41 does not close the grass discharge opening, The lawn mower 100 is in the grass harvesting mode.
  • the lawn mower 100 When the driving member 42 drives the baffle 41 to close the grass discharge opening, the lawn mower 100 is in the grass cutting mode, which can be switched quickly without installing additional grass cutting accessories, which is fast, convenient and efficient; at the same time, the blocking When the plate 41 is in the open position A, it is located outside the grass discharge channel 15 and the grass discharge opening 11, which does not affect the discharge of grass clippings and will not be contaminated with grass clippings and cause blockage, which is convenient and quick.
  • the lawn mower 100 in another preferred embodiment of the present application includes a casing 1, a cutting assembly 3 arranged in the casing 1 and performing a cutting action on the target, and The drive assembly (not shown) inside the housing 1 and used to drive the cutting assembly 3 and the wheel set 2 connected to the housing 1.
  • the target is grass.
  • the target can also be other, depending on the actual situation.
  • the lawn mower 100 also includes a push rod seat (not shown) provided on the casing 1 and an upper push rod (not shown) connected to the push rod seat for the operator to grasp ), the operator pushes the lawn mower 100 forward or backward by grasping the upper push rod.
  • the push rod seat and the upper push rod are arranged at the rear end of the casing 1, and the cutting assembly 3 is arranged at the front end of the lawn mower 100 and on the bottom surface thereof, so that the lawn mower 100 performs a mowing action when the lawn mower 100 moves.
  • the casing 1 includes a volute 13 formed with a cutting cavity 131 and an air duct housing 14 connected to the volute 13.
  • the cutting assembly 3 is arranged in the volute 13, and the direction indicated by the arrow a in the figure is the front, correspondingly, The direction opposite to the direction indicated by the figure a is the rear, and the direction perpendicular to the front and rear is the left-right direction.
  • the air duct housing 14 is arranged behind the volute 13.
  • the air duct shell 14 is provided with a grass discharge channel 15 communicating with the cutting cavity 131.
  • the grass discharge channel 15 has a grass discharge port 11 located close to the volute 13 and away from the volute 13 and used to connect to an external collection device. ⁇ 16 ⁇ ⁇ 16.
  • the external collection device can be a structure such as a cloth bag, which is not specifically limited here.
  • the air duct housing 14 and the volute 13 are integrally formed, which simplifies the manufacturing process and does not require subsequent installation, and there is no gap between the two that affects the aesthetics of the overall appearance. It is true that in other embodiments, the air duct housing 14 and the volute 13 can also be connected separately after being installed.
  • the connection methods include but are not limited to: bonding, welding, clamping, etc., which are not specifically limited here. It depends on the actual situation.
  • the structure of the casing 1 is not limited to the volute 13 and the air duct casing 14 described above.
  • the casing 1 includes a cutting cavity 131 with an open bottom.
  • the side wall of the cutting cavity 131 is provided with a grass discharge channel communicating with the external space, and the grass discharge channel is arranged substantially along the radial direction of the cutting assembly 3 in the cutting cavity 131.
  • the cutting assembly 3 is arranged in the cutting cavity 131 and performs a cutting action on the target, and the working plane formed by the rotation of the cutting assembly during the mowing operation is the cutting plane.
  • a cutter head is included.
  • the cutter head includes a cutter head body and a plurality of blades pivotally mounted on the cutter head body. A plurality of blades are evenly distributed on the edge of the cutter head body along the circumferential direction of the cutter head body.
  • the cutting assembly 3 can also be in other forms, such as a separate strip blade.
  • the lawn mower 100 also includes an energy component.
  • the energy component is used to power the lawn mower 100.
  • the energy component includes a battery pack (not shown).
  • the lawn mower is powered by the battery pack, and the battery
  • the bag is detachably installed above the cutting cavity 131.
  • the casing 1 is provided with a grass discharge opening 11.
  • the grass discharge opening 11 is opened on the rear side of the casing 1. It is true that in other embodiments, the grass row opening 11 may also be arranged at other positions of the casing 1, such as the side of the casing 1, which is not specifically limited here, and depends on the actual situation.
  • the lawn mower 100 has a grass-crushing mode in which the target is discharged from the cutting cavity 131 through the grass discharge channel 15 to the outside of the casing 1, and a grass-crushing mode in which the target is directly chopped in the cutting cavity 131.
  • the lawn mower 100 is in In the grass rowing mode, the target object is discharged under the action of the airflow of the cutting assembly 3.
  • the lawn mower 100 further includes a switching assembly 4.
  • the switching assembly 4 closes the grass discharge opening 11 to isolate the grass discharge channel 15 from the cutting cavity 131 so that the lawn mower 100 is in a grass-crushing mode, or opens the grass discharge opening 11 so that the grass discharge channel 15 communicates with the cutting cavity 131. So that the lawn mower 100 is in the grass rowing mode, the switch between the grass cutting mode and the grass rowing mode of the lawn mower 100 can be realized by adjusting the switching component 4, which is quick and convenient, and there is no need to install additional grass cutting accessories. In the grass shredding mode, since the grass discharge port 11 is closed, the cut grass cannot be discharged from the grass discharge channel 15 to the cutting cavity 131. Therefore, the grass is repeatedly cut by the cutting assembly 3 in the cutting cavity 131 and is crushed into smaller particles.
  • the switching assembly 4 includes a baffle 41 and a driving member 5 for driving the movement of the baffle 41.
  • the baffle 41 has an open position A for opening the grass discharge opening 11.
  • the baffle 41 has a closed position B for closing the grass discharge opening 11, and the driving member 5 can drive the baffle 41 Move between the open position A and the closed position B to close or open the grass discharge opening 11.
  • the grass discharge channel 15 communicates with the cutting cavity 131, and the lawn mower 100 is in the grass discharge mode.
  • the airflow mixed with the grass to be harvested discharges the grass from the grass discharge port 11 to the outside of the casing 1.
  • the baffle 41 blocks the grass discharge opening 11 to close the grass discharge opening 11
  • the grass discharge channel 15 is isolated from the cutting cavity 131
  • the lawn mower 100 is in the grass shredding mode, and the cut grass is in the housing.
  • the inside of 1 keeps rotating and cannot be discharged to the outside of the casing 1, and then under the cutting action of the cutting assembly 3, the grass is broken until the lawn mower 100 stops running, and the broken grass falls to the ground after the lawn mower 100 stops running .
  • the driving member 5 also includes an operating portion 54 for the operator to operate, and the operating portion 54 can drive the baffle 41 to switch between the open position A and the closed position B.
  • the lawn mower 100 is provided with a vertical cutting plane perpendicular to the cutting plane, and the operating part 54 can rotate between the first position and the second position to drive the baffle 41 to move from the closed position B to the open position on a plane substantially parallel to the vertical cutting plane. A rotates, so that the movement path of the operating part 54 linked to the baffle 41 between the open position and the closed position is basically in the same plane, making the overall structure of the lawn mower 100 more compact, and the position of the baffle 41 does not need to be moved. More space.
  • the operating portion is preferably a handle 54.
  • the operating portion may also be other parts that can be rotated or pushed by the user, such as push buttons or knobs.
  • the vertical cut surface is substantially perpendicular to the advancing direction of the lawn mower, and the operating portion 54 can rotate between the first position and the second position along the vertical cut surface.
  • the movement of the baffle 41 It only occupies the space in the left and right direction of the lawn mower 100, but basically does not occupy the space in the front and rear direction of the lawn mower 100, thereby further reducing the position required for the movement of the baffle 41.
  • it can also be further This reduces the space on the housing 1 occupied by the movement of the handle 54.
  • the included angle between the vertical cutting plane and the advancing direction of the lawn mower may not be completely vertical, and there may be a certain deviation, specifically 85°-95°.
  • the driving member 5 includes a first rotating member 51, a second rotating member 52, and a connecting rod 53, which connects the first rotating member 51 and the second rotating member 52, and the second rotating member 52 and
  • the baffle 41 is fixedly connected.
  • the first rotating member 51 drives the second rotating member 52 to rotate through the connecting rod 53, and when the second rotating member 52 rotates, it drives the baffle 41 to rotate.
  • the handle 54 is connected to the first rotating member 51.
  • the handle 54 can rotate between the first position and the second position.
  • the baffle 41 is in the closed position, and the handle 54 moves from the first position to the second position.
  • the handle 54 drives the first rotating member 51 to rotate, and drives the second rotating member 52 to rotate through the connecting rod 53.
  • the second rotating member 52 drives the baffle 41 to rotate from the closed position to the open position.
  • the air duct housing 14 is further provided with a guide groove 141.
  • the baffle 41 moves from the open position to the closed position, the baffle 41 can pass through the guide groove 141 from below the air duct housing 14 around the axis.
  • the upper part of the air duct shell 14 rotates to shield the grass discharge opening 11.
  • the guide groove 141 is configured in an L shape, and the guide groove 141 is provided on two adjacent side walls surrounding the grass opening 11 and forms an opening that penetrates in the direction of the movement path of the baffle.
  • the baffle 41 moves from the open position to the closed position. At this time, the baffle 41 moves from the air duct housing 14 along the guide groove 141. The lower direction rotates above the air duct housing 14 and pushes the grass accumulated in the guide groove 141 to separate from the guide groove 141, thereby avoiding the blockage of the guide groove 141 caused by the long-term operation of the lawn mower, and further Prevent the lawnmower from being unable to switch between the shredded grass mode and the grass row mode normally.
  • the axis is collinear with the axis of the second rotating member 52 in this embodiment.
  • the lawn mower 100 has a cut surface perpendicular to the advancing direction of the lawn mower and tangent to the rear end of the volute 13 (refer to FIG. 15, indicated by the dashed line P1).
  • the distance between the volute 13 and the guide groove 141 is too thin, the strength is poor; when the distance between the cutting plane P1 and the foremost edge of the guide groove 141 is far, when the mower is in the grass rowing mode, Fragmented grass is easy to accumulate at the connection, so that when the lawn mower executes the fragmentation mode, the accumulated grass will fall on the lawn, which affects the quality of the fragmented grass and reduces the user experience.
  • FIG. 15 specifically.
  • the distance L1 between the cut surface P1 and the foremost edge of the guide groove 141 is in the range of 4-30 mm. This can meet the strength requirements of the lawn mower structure on the one hand, and on the other hand, The distance between the cut surface P1 and the guide groove 141 will not be too far, and there will not be a lot of grass accumulation. In a preferred embodiment of the present application, the distance L1 between the cut surface P1 and the foremost edge of the guide groove 141 is 6 mm.
  • the first rotating member 51 includes a first rotating shaft 511
  • the second rotating member 52 includes a second rotating shaft 521
  • the second rotating shaft 521 is fixedly connected to the baffle 41.
  • One end of the connecting rod 53 is rotatably connected with the first rotating shaft 511 through a first pivot 512, and the first pivot 512 and the first rotating shaft 511 are arranged eccentrically relative to each other.
  • the other end of the connecting rod 53 is rotatably connected with the second rotating shaft 521 through a second pivot 522, and the second pivot 522 and the second rotating shaft 521 are arranged eccentrically relative to each other.
  • the handle 54 is disposed on the outside of the casing 1 and can drive the first rotating shaft 511 to rotate. Wherein, one end of the handle 54 is fixedly connected to the first rotation shaft 511, the handle 54 can be rotated between the first position and the second position.
  • the handle 54 When the handle 54 is in the first position, the baffle 41 is in the closed position, and the handle 54 is in the closed position. In the second position, the shutter 41 is in the open position.
  • the driving member 5 includes a first rotating member 51, a second rotating member 52 and a connecting rod 53, so that the position of the handle 54 can be designed more flexibly, thereby facilitating the overall structural design of the lawn mower 100.
  • the handle 54 and the baffle 41 are respectively connected to the first rotating member 51 and the second rotating member 52. Due to the existence of the connecting rod 53, the distance between the handle 54 and the baffle 41 can be increased.
  • the handle 54 does not have to be close to the baffle 41, so that the position of the handle 54 can be flexibly designed, which is beneficial to the design of the outer structure of the casing 1.
  • the housing 1 of the lawn mower 100 has a longitudinal center axis Z.
  • the extension direction of the central axis Z is consistent with the advancing direction of the lawn mower 100, and the central axis Z extends along the length direction of the casing 1.
  • the handle 54 when the handle 54 is in the first position or the second position, the handle is biased to one side of the central axis Z. That is, in the width direction of the casing 1, when the handle 54 is in the first position or the second position, the handle 54 is biased to one side of the casing 1 and is not at the central axis Z.
  • the handle 54 when the handle 54 is in the first position, the handle 54 is biased to one side of the casing 1; it can also be that when the handle 54 is in the second position, the handle 54 is biased to the side of the casing 1; it can also be the handle 54.
  • the handle 54 When in the first position, the handle 54 is biased toward one side of the casing 1, and when the handle 54 is switched to the second position, the handle 54 is also biased toward the side of the casing 1. Since the handle 54 is biased to one side of the casing 1, space is made for the middle position above the casing 1, which can be used to set other accessories.
  • the lawn mower 100 has a central plane perpendicular to the advancing direction of the lawn mower 100 and perpendicular to the cutting plane, the operating part 54 is offset to one side of the central plane in the left-right direction, and when the operating part 54 is at When rotating between the first position and the second position, in the longitudinal direction, the operating portion 54 is spaced apart from the left rear edge or the right rear edge of the energy component.
  • the lawn mower 100 is detachably adapted to a backpack-type battery pack (not shown), and the backpack-type battery pack is also provided with a protection compartment (not shown), and the battery pack is housed in the protection compartment ,
  • the lawn mower 100 can operate normally. Realize the switching of the grass rowing mode and the shattered grass mode.
  • the operating part 54 When the rotating angle of the operating part 54 from the first position to the second position in the vertical section is smaller than the angle of the baffle moving from the closed position to the open position, the operating part 54 only needs to rotate a small angle. Realize the switching of the grass cutting mode and the grass row mode of the lawn mower, thereby reducing the operating space required for the operation of the operating part 54, making the overall structure of the lawn mower 100 more compact, and at the same time, further releasing the upper part of the housing 1. The space is convenient for the installation of other parts.
  • the angle of rotation of the operating portion 54 is the same as the angle of rotation of the baffle 41 Consistent, the space occupied by the movement of the operating portion 54 and the baffle 41 is basically the same, so that the overall structure of the lawn mower 100 is more stable.
  • the operating portion 54 is arranged above the casing 1, and other structures such as battery packs are also arranged above the casing 1.
  • the baffle 41 is provided Inside the casing 1, it can be rotated to close and open the grass discharge opening.
  • the rotation angle of the baffle 41 is too small, the grass discharge opening cannot be reliably closed.
  • the rotation angle of the baffle 41 is too large, it will also occupy Excessive space. Therefore, in an embodiment of the present application, the angle of rotation of the operating portion 54 on the vertical section is not more than 120 degrees, so as to drive the baffle 41 to rotate from the closed position to an angle of not more than 150 degrees. Turn on position switching.
  • the rotation angle of the operating portion 54 is 90 degrees, and correspondingly, the rotation angle of the baffle 41 is also 90 degrees.
  • the axis X of the first rotating shaft 511 and the axis Y of the second rotating shaft 512 are both parallel to the central axis Z.
  • the link 53 extends in the width direction of the cabinet 1, and the link 53 staggers the handle 54 and the baffle 41 in the width direction of the cabinet 1.
  • the first rotating shaft 511 and the second rotating shaft 512 make the handle 54 and the baffle 41 stagger in the length direction of the casing 1, so that the handle 54 and the baffle 41 can be staggered in the length and width directions of the casing 1
  • a larger distance allows more flexible design of the positions of the handle 54 and the baffle 41, which is beneficial to release the space above the casing 1.
  • the rotation angle of the second rotating member 52 is set to be greater than the rotation angle of the first rotating member 51, and the rotation angle of the first rotating member 51 is enlarged by the connecting rod 53, that is, the first rotating member 51 only needs to Rotating a relatively small angle can link the baffle 41 to make the baffle 41 have a larger movement stroke, and then the baffle 41 opens or closes the grass discharge channel 15. Therefore, the operation space required for driving the first rotating member 51 can be reduced, and the overall structure of the lawn mower 100 can be more compact.
  • the eccentricity between the first pivot 512 and the first rotation shaft 511 (for convenience of description, hereinafter referred to as the first eccentricity) is greater than the eccentricity between the second pivot 522 and the second rotation shaft 521 (For convenience of description, hereinafter referred to as the second eccentricity).
  • the eccentricity between the first pivot 512 and the first rotation shaft 511 refers to the vertical distance between the axis of the first pivot 512 and the axis X of the first rotation shaft 511.
  • the eccentricity between the second pivot 522 and the second rotating shaft 521 that is, the second eccentricity refers to the vertical distance between the axis of the second pivot 522 and the axis Y of the second rotating shaft 521.
  • the first eccentricity is greater than the second eccentricity
  • the second rotating shaft 521 needs to rotate more angles to adapt to the movement of the connecting rod 53, and the second rotating shaft 521 can drive the baffle 41 to achieve greater movement journey. Therefore, the purpose of enlarging the rotation angle of the first rotating member 51 can be achieved, and the operation space required when driving the first rotating member 51 can be reduced, so that the overall structure of the lawn mower 100 is more compact.
  • a first limiting structure 17 is provided on the casing 1.
  • the first rotating shaft 511 is rotatably received in the first limiting structure 17.
  • the first limiting structure 17 includes a positioning portion 171 and a locking member 172, and the first rotating shaft 511 is received in the positioning portion 171 and is limited by the locking member 172.
  • the locking member 172 is detachably connected to the positioning portion 171. When the locking member 172 is separated from the positioning portion 171, the first rotating shaft 511 can be taken and placed. Through the above means, it is more convenient to install the first rotating member 51.
  • the first rotating shaft 511 may also be rotatably supported by the casing 1 through a bearing.
  • a second limiting structure 18 is provided on the casing 1.
  • the second rotating shaft 521 is rotatably received in the second limiting structure 18.
  • the second limiting structure 18 can take exactly the same structure as the first limiting structure 17, which will not be repeated.
  • the baffle 41 is fixedly connected to the second rotating shaft 521 and is driven to rotate by the second rotating shaft 521.
  • the baffle 41 is roughly quadrilateral, one end of the baffle 41 is fixed to the second rotating shaft 521, and the other end on the diagonal of the baffle 41 is provided with a pivot hole 410 for It is rotatably connected with the casing 1 through a connecting shaft (not shown).
  • a connecting shaft not shown.
  • the connection manner of the baffle 41 and the second rotating shaft 521 is not specifically limited, for example, welding, fastening connection, etc. may be used.
  • the rotation connection between the baffle 41 and the casing 1 is outside the grass discharge channel 15 and the cutting cavity 131. Therefore, when the baffle 41 is in the closed position, the baffle 41 can be rotated to a position completely separated from the grass discharge channel 15 and the cutting cavity 131. The baffle 41 cannot be seen in the grass discharge opening 11.
  • the advantage of this arrangement is that when the lawn mower 100 discharges the broken grass from the grass discharge port 11 to the outside of the casing 1, the grass will not be contaminated on the baffle 41, so the grass will not block the grass discharge channel 15.
  • the rotation plane of the baffle 41 when it rotates is substantially perpendicular to the grass discharge channel 15.
  • the rotation plane of the baffle 41 is perpendicular to the ground, and the cutting plane of the cutting assembly 3 is parallel to the ground.
  • the rotation axis of the baffle 41 (that is, the axis of the connecting shaft connecting the baffle 41 and the casing 1 described above) is parallel to the cutting plane, and the rotation plane of the baffle 41 is flat on the cutting plane of the cutting assembly 3.
  • the linear guide channel 19 includes an upper rib 191 and a lower rib 192 arranged on both sides of the connecting rod 53.
  • the upper rib 191 and the lower rib 192 together provide a linear guiding path, and the constraining link 53 can only reciprocate along a straight line.
  • the linear guide channel 19 includes a cylindrical channel.
  • the connecting rod 53 is a plate-shaped element. In other embodiments, the connecting rod 53 may also be a rod-shaped element.
  • the first rotating member 51 further includes an eccentric shaft 513 connected to the first rotating shaft 511 and arranged eccentrically to each other, the first pivot 512 is arranged on the eccentric shaft 513 and the first The pivot shaft 512 is coaxial with the eccentric shaft 513.
  • One end of the eccentric shaft 513 is connected to the first rotating shaft 511 by a cross arm 514.
  • the cross arm 514 makes the eccentric shaft 513 and the first rotating shaft 511 stagger the distance in the radial direction of the first rotating shaft 511 exactly the first eccentric distance, and the cross arm 514 makes the eccentric shaft 513 and the first rotating shaft 511 be on the first rotating shaft.
  • the axial direction of 511 is staggered or just connected.
  • the other end of the eccentric shaft 513 is provided with a first pivot 512 coaxially.
  • the first pivot 512 is rotatably installed in a hole provided on the connecting rod 53.
  • the first rotating shaft 511 and the connecting rod 53 realize an eccentric transmission connection; on the other hand, in the axial direction of the first rotating shaft 511, the eccentric shaft 513 makes the connecting rod 53 and the first rotating shaft 511 have a distance.
  • the first pivot 512 may also be directly disposed at an end of the cross arm 514 far away from the first rotation shaft 511.
  • the second rotating member 52 further includes a rocker arm 523, one end of the rocker arm 523 is fixedly connected to the second rotating shaft 521, and the other end of the rocker arm 523 is connected to the second pivot shaft 522.
  • the rod 53 is connected in rotation.
  • the other end of the rocker arm 523 is provided with a second pivot 522, and the second pivot 522 is rotatably installed in a hole on the connecting rod 53.
  • the rocker arm 523 extends along the radial direction of the second rotating shaft 521 so that the second pivot 522 and the second rotating shaft 521 are staggered in the radial direction of the second rotating shaft 521 by a distance of just the second eccentricity.
  • the end of the rocker arm 523 of the second rotating member 52 may also be provided with an eccentric shaft 513 similar to the first rotating member 51.
  • the eccentric shaft 513 makes it eccentric in the axial direction of the second rotating shaft 521
  • the shaft 513 provides a distance between the connecting rod 53 and the second rotating shaft 521, thereby facilitating the adjustment of the installation position of the second rotating shaft 521 as required.
  • the casing 1 is provided with an opening 12, and the handle 54 passes through the opening 12 and is fixedly connected to the first rotating shaft 511.
  • the handle 54 can rotate relative to the casing 1 at the opening 12 to drive the first rotating shaft 511 to rotate.
  • the handle 54 protrudes above the casing 1, which conforms to daily operation habits.
  • the handle 54 By providing the handle 54, the user can conveniently drive the first rotating shaft 511 to rotate, which saves effort.
  • the handle 54 rotates, through the first rotating member 51, the second rotating member 52 and the connecting rod 53, the handle 54 only needs to rotate a relatively small angle to drive the baffle 41 to switch between the closed position and the open position.
  • the operation space required by the handle 54 is small, which makes the lawn mower 100 more compact.
  • the rotation plane of the handle 54 and the rotation plane of the baffle 41 are parallel or overlapped, so that the lawn mower 100 is more compact.
  • the rotation plane of the handle 54 is perpendicular to the cutting plane of the cutting assembly 3
  • the rotation plane of the baffle 41 is also perpendicular to the cutting plane of the cutting assembly 3
  • the two rotation planes are parallel to each other; or the two planes are the same plane, that is, the handle 54 and the baffle 41 rotate in the same plane.
  • both the handle 54 and the baffle 41 rotate in a plane extending along the height direction of the lawn mower 100.
  • the axis X of the first rotation shaft 511 and the axis Y of the second rotation shaft 521 both extend in the front-rear direction of the lawn mower 100.
  • a clamping plate 121 is provided in the opening 12 to restrict the handle 54 from rotating freely.
  • the clamping plate 121 is located between the first position and the second position of the handle 54.
  • the clamping plate 121 abuts against the handle 54 to restrict the movement of the handle 54 to the second position.
  • the clamping plate 121 abuts against the handle 54 to restrict the movement of the handle 54 to the first position.
  • the handle 54 is first separated from the card board 121, and then the handle 54 is rotated to make the handle 54 abut against the card board 121 again.
  • the opening 12 includes two opposite inner side walls 122, the clamping plate 121 is provided on one of the inner side walls 122, and a handle 54 is formed between the clamping plate 121 and the other inner side wall 122.
  • ⁇ gap 123. 6 illustrates the relative positional relationship between the handle 54 and the card board 121 when the handle 54 is in the first position. The handle 54 abuts on the card board 121 on the right side and cannot easily move to the second position.
  • a clamping plate 121 is provided on the inner side wall 122 of the opening 12. No matter the handle 54 is in the first position or the second position, the clamping plate 121 can function as the limit handle 54, thereby providing a simple solution. According to the solution, the baffle 41 can be maintained at the open position and the closed position, so as to avoid accidental switching of the operation mode of the lawn mower 100.
  • the card board 121 is an elastic member.
  • the card board 121 is made of an elastic material, so that in the process of separating or abutting the operating handle 54 from the card board 121, it is labor-saving and has a good operating feel.

Abstract

公开了一种割草机（100），其包括：机壳（1），设有切割腔及排草通道（15）；挡板（41），安装于所述机壳（1），具有封闭所述排草通道（15）的关闭位置和打开所述排草通道（15）的打开位置；驱动件（42），所述驱动件（42）能够驱动所述挡板（41）在所述打开位置及关闭位置之间切换，当驱动件（42）联动挡板（41）转动至打开位置时，挡板（41）位于排草通道（15）之外。

Description

割草机 技术领域
本发明涉及园林工具领域，特别是涉及一种割草机。
背景技术
割草机又称除草机、草坪修剪机等，是一种用于平整草坪的工具。由于用户的不同需求，割草机一般具有排草模式及碎草模式。但是，现有技术中的割草机的碎草模式，大多数采用碎草附件，即该碎草附件与割草机整机是脱离的。当需要进行碎草时，将碎草附件与割草机连接再进行碎草工作，那么需要将碎草附件与割草机反复安装或拆卸，给用户带来诸多不便，且降低了用户的使用感受。
发明内容
根据本申请的各种实施例，提供一种割草机。
一种割草机，包括：机壳，包括形成有切割腔的蜗壳及与所述蜗壳连接的风道壳体，所述风道壳体上开设有与所述切割腔连通设置的排草通道，所述排草通道设有排草口；切割组件，设于所述切割腔内且对目标物进行切割动作，所述切割组件在割草工作时转动形成的工作平面为切割平面；挡板，安装于所述机壳，具有封闭所述排草通道的关闭位置和打开所述排草通道的打开位置；驱动件，设置于所述机壳，所述驱动件还包括供操作者操作的操作部，操作所述操作部能够驱动所述挡板在所述打开位置及所述关闭位置之间切换；所述挡板在所述打开位置时位于所述排草通道及所述切割腔之外；所述割草机设有与所述割草机前进方向相垂直且与所述切割平面相垂直的竖切面，所述操作部在所述竖切面内能够在第一位置和第二位置间转动以带动所述挡板在与所述竖切面相平行的平面上由所述关闭位置向所述打开位置转动。
一种割草机，包括：机壳，包括形成有切割腔的蜗壳及与所述蜗壳连接的风道壳体，所述风道壳体上开设有与所述切割腔连通设置的排草通道，所述排草通道设有排草口；切割组件，设置在所述切割腔内且对目标物进行切割动作；驱动组件，驱动所述切割组件运行；所述割草机具有将目标物自所述切割腔通过所述排草通道排出至所述机壳外的排草模式及将目标物在所述蜗壳内直接切碎的碎草模式；所述割草机还包括切换组件，所述切换组件将所述排草口关闭进而使得所述排草通道与所述切割腔隔绝以使得所述割草机处于所述碎草模式，或将所述排草口打开进而使得所述排草通道与所述切割腔连通以使得所述割草机处于所述排草模式，所述切换组件包括：挡板，具有打开所述排草口的打开位置及关闭所述排草口的关闭位置，所述挡板在所述打开位置时位于所述排草通道及所述切割腔之外； 驱动件，联动所述挡板，所述驱动件能够带动所述挡板转动以使所述挡板在所述打开位置及关闭位置之间切换。
本申请的一个或多个实施例的细节在下面的附图和描述中提出。本申请的其他特征、目的和优点将从说明书、附图以及权利要求书变得明显。
附图说明
为了更好地描述和说明这里公开的那些发明的实施例或示例，可以参考一幅或多幅附图。用于描述附图的附加细节或示例不应当被认为是对所公开的发明、目前描述的实施例或示例以及目前理解的这些发明的最佳模式中的任何一者的范围的限制。
图1为本申请的割草机的碎草模式的结构示意图。
图2为本申请的割草机的碎草模式的另一结构示意图。
图3为本申请的割草机的收草模式的结构示意图。
图4为本申请的割草机的收草模式的另一结构示意图。
图5为本申请一实施例中的切换组件的结构示意图。
图6为图5的切换组件的另一状态示意图。
图7为本申请另一实施例中的切换组件的结构示意图。
图8为图7的切换组件的另一状态示意图。
图9为本申请又一实施例中割草机的结构示意图。
图10为图9所示割草机的收草模式下的结构示意图。
图11为图9所示割草机的碎草模式下的结构示意图。
图12为图9所示割草机的切换组件的结构示意图。
图13为本申请又一实施例中割草机的手柄限位结构的示意图。
图14为图13的手柄限位结构的示意俯视图。
图15为图9所示割草机的风道壳体及部分蜗壳的结构示意图。
具体实施方式
为了便于理解本申请，下面将参照相关附图对本申请进行更全面的描述。附图中给出了本申请的优选实施方式。但是，本申请可以以许多不同的形式来实现，并不限于本文所描述的实施方式。相反的，提供这些实施方式的目的是为了对本申请的公开内容理解得更加透彻全面。
需要说明的是，当部被称为“固定于”另一个部，它可以直接在另一个部上也可以存在居中的部。当一个部被认为是“连接”到另一个部，它可以是直接连接到另一个部或者可能同时存在居中部。本文所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。
在本申请的描述中，需要理解的是，术语“长度”、“宽度”、“厚度”、“高度”、“深度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺 时针”、“逆时针”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中使用的术语只是为了描述具体的实施方式的目的，不是旨在于限制本申请。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
此外，下面所描述的本申请不同实施方式中所涉及的技术特征只要彼此之间未构成冲突就可以相互结合。在本申请描述中，轴线方向与高度方向一致。
请参见图1至图4，本申请的一较佳实施例中的割草机100，包括机壳1、设置在机壳1内且对目标物进行切割动作的切割组件3、设置在机壳1内且用以驱动切割组件3运行的驱动组件及与机壳1连接的轮组2，在本实施例中，该目标物为草，诚然，在其他实施例中，目标物也可为其他，根据实际情况而定。为了方便用户使用割草机100，割草机100还包括设置在机壳1上的推杆座及与推杆座连接以供操作者抓持的上推杆，操作者通过抓持上推杆后推动割草机100前进或后退。推杆座及上推杆设置在机壳1的后端，切割组件3设置在割草机100的前端且位于其底面，以使得割草机100在移动时进行割草动作。
机壳1包括形成有切割腔的蜗壳13及与蜗壳13连接的风道壳体14，切割组件3设置于蜗壳13内，以图中箭头a所指方向为前方，对应地，与图示a所指方向相反的即为后方，比如：风道壳体14设置在蜗壳13的后方。风道壳体14上开设有与切割腔连通设置的排草通道15，排草通道15具有靠近蜗壳13设置的排草口11、及远离蜗壳13设置且用以与外部收集装置连接的集草口16。外部收集装置可以为布袋等结构，在此不做具体限定。在本实施例中，风道壳体14与蜗壳13一体成型设置，简化制造工艺且无需后续安装，两者之间也不会存在缝隙影响整体外观的美观性。诚然，在其他实施例中，风道壳体14与蜗壳13也可分体设置后进行连接，连接方式包括但不限于：粘接，焊接、卡接等，在此不做具体限定，根据实际情况而定。
切割组件3为刀盘，刀盘3包括刀盘本体及可枢转地安装在刀盘本体上的多个刀片组成。诚然，切割组件3也可为其他形式，例如单独的条形刀片等。
驱动组件包括割草的切割马达(未图示)，切割马达连接刀盘以驱动刀盘旋转并进行割草动作。切割马达具有输出轴(未图示)，切割马达通过输出轴直接与刀盘连接并驱动刀盘。当然，也可以在切割马达与刀盘之间设置有传动装置，以通过传动装置将切割马达的动力传输至刀盘上从而 实现刀盘转动进而完成割草，传动装置可以为皮带轮、减速齿轮等。
轮组2包括设置在割草机100前端的前轮21、后端的后轮22及用以保持前轮21相较于后轮22的距离固定的连杆23。
机壳1上设置有排草口11，在本实施例中，于割草机100的前进方向上，排草口11开设在机壳1的后侧。诚然，在其他实施例中，该排草口11也可设置在机壳1的其他位置上，如机壳1的侧方，在此不做具体限定，根据实际情况而定。
割草机100具有将目标物自切割腔通过排草通道15排出至机壳1外的碎草模式及将目标物在切割腔内直接切碎的碎草模式，当割草机100处于排草模式时，目标物在切割组件3的气流作用下排出。
请结合图5及图6，割草机100还包括切换组件4，切换组件4将排草口11关闭进而使得排草通道15与切割腔隔绝以使得割草机100处于碎草模式，或将排草口11打开进而使得排草通道15与切割腔连通以使得割草机100处于排草模式，只需调节切换组件4即可实现割草机100的碎草模式及排草模式的切换，快捷方便，无需额外安装碎草附件。其中，切换组件4包括挡板41及用于驱动挡板41的驱动件42，挡板41具有打开排草口11的打开位置A及关闭排草口11的关闭位置B，驱动件42驱动挡板41在打开位置A及关闭位置B之间移动以闭合或打开排草口11。呈上述，当挡板41未遮挡排草口11以使得排草口11打开时，排草通道15与切割腔连通，割草机100处于收草模式，在气流的作用下切割组件3将草收割后自排草口11排出至机壳1外。当挡板41遮挡排草口11以将排草口11闭合时，排草通道15与切割腔隔绝，割草机100处于碎草模式，被收割的草在机壳1内不停旋转而无法排出至机壳1外，继而在切割组件3的切削作用下进行碎草动作，直至割草机100停止运行，碎草在割草机100停止运行后掉落至地面。
机壳1上还设置有开口12，开口12设置在风道壳体14及蜗壳13的连接处，此时挡板41设置于排草口11处，这样设置的目的在于：排草口11与蜗壳13之间的距离越近，蜗壳13结构更紧凑，割草机100的碎草效果更好。挡板41设置在所述机壳1内，至少部分驱动件42通过所述开口12突伸出机壳1外，以供用户驱动继而驱动挡板41相对于排草口11移动。呈上述，该驱动件42与风道壳体14连接。
在本实施例中，驱动件42包括手柄421及解锁件423，在本实施例中，该解锁件423为解锁按钮，诚然，在其他实施例中，该解锁件423也可以为其他，在此不做具体限定，根据实际情况而定。其中，手柄421联动挡板41在打开位置A及关闭位置B之间切换，且手柄421联动挡板41在打开位置A与关闭位置B之间的移动路径基本均处于同一平面内，使得割草机100整体结构更为紧凑，挡板41的位置移动无需占用较多空间。切割组件4还包括贯穿设置在手柄421上的连接轴426，连接轴426的一端与机壳1转动连接或滑动连接，连接轴426的另一端与挡板41固定连接，即 移动手柄421以使得连接轴426相对于机壳1转动或移动继而带动挡板41转动或移动，以使得挡板41在同一平面内移动或转动。在本实施例中，手柄421联动挡板41在同一空间内转动，转动角度为90°，以实现挡板41在同一空间内翻转继而将排草口11打开或关闭。诚然，在其他实施例中，手柄421联动挡板41转动的角度也可为其他，或者，手柄421联动挡板41在同一空间内移动，在此不做具体限定，根据实际情况而定。
切换组件4还包括设置在手柄421上的定位销轴422，该定位销轴422用以将手柄421与机壳1卡合定位，连接轴426贯穿设置在手柄421的一端。因为手柄421通过连接轴426与风道壳体14、挡板41连接，手柄421通过连接轴426可相对于风道壳体14在一个平面内转动进而使得挡板41基本在一个平面内移动，即挡板41的打开位置A与关闭位置B基本位于同一平面内。调节手柄421以驱动挡板41相对于排草口11移动至打开位置A以使得排草口11打开，此时，挡板41位于排草口11及排草通道15之外，即，在排草口11内无法看见挡板41。这样设置的目的在于：当割草机100将碎草自排草口11排出至机壳1外时，草屑不会沾染到挡板41上，因此不会造成草屑堵塞的现象。
为了方便手柄421更好地相对于机壳1旋转及卡合定位，机壳1上设置有与定位销轴422卡合定位的凹槽(未图示)。呈上述，由于开口12具有两端，当手柄本体421移动至开口12两端时，分别通过定位销轴422与机壳1固定，所以凹槽设置有两个，两个凹槽的形状与定位销轴422匹配。诚然，在其他实施例中，手柄本体421也可沿机壳1滑动，此时，该凹槽可为长条形凹槽，在此不做具体限定，根据实际情况而定。
解锁按钮423用以使得手柄421与机壳1卡合固定以定位挡板41、或使得手柄421与机壳1脱离且相对机壳1移动以改变挡板41的位置，解锁按钮423设置在手柄421上且联动定位销轴422相较于手柄421移动，以使得定位销轴422与凹槽卡合或脱离。手柄421具有中空部、及开设在手柄421上且与中空部连通的第一通孔424和第二通孔425，定位销轴422设置在中空部内且定位销轴422的一端突伸出第一通孔424以与凹槽卡合，解锁按钮423的一端与定位销轴422连接且解锁按钮423的一端突伸出第二通孔425，同时，解锁按钮423与手柄421之间还设置有弹性件(未图示)。施加外力以按压解锁按钮423，解锁按钮423向手柄本体421内移动继而压缩弹性件，同时带动定位销轴422向手柄本体421移动，从而使得手柄本体421与机壳1脱离进而转动手柄本体421。当手柄本体421移动至目标位置时，撤销外力，弹性件在其自身弹力作用下反弹进而驱动手柄本体421复位，继而带动定位销轴422复位。在本实施例中，弹性件为弹簧。诚然，在其他实施例中，该弹性件也可为其他，在此不做具体限定，根据实际情况而定。解锁按钮423可通过连接件与定位销轴422连接也可与定位销轴422一体成型设置。为了使得制造工艺简单，在本实施例中，解锁按钮423与定位销轴422一体成型设置。诚然，在其他实施例中， 解锁按钮423也可与定位销轴422分体设置，在此不做具体限定，根据实际情况而定。
请参见图7及图8，在其他实施例中，该驱动件还包括齿轮42’。当驱动件42’为齿轮时，挡板41’随着齿轮42’相对于排草口11旋转，此时，当挡板41’位于打开位置A时，挡板41’在排草口11的一侧。齿轮42’包括第一齿轮本体421’及与第一齿轮啮合的第二齿轮本体422’，此时，挡板41’包括与第一齿轮本体421’连接的第一挡板本体411’及与第二齿轮本体422’连接的第二挡板本体412’。旋转第一齿轮本体421’与第二齿轮本体422’中的一个，进而带动第一齿轮本体421’和第二齿轮本体422’中的另一个转动，从而使得第一挡板本体411’及第二挡板本体412’相对移动以使得排草口打开或闭合。其中，第一挡板本体411’与第二挡板本体412’的移动方向相反。
为了提高齿轮42’的传动比，齿轮还包括设置在第一齿轮本体421’及第二齿轮本体422’之间且与第一齿轮本体421’与第二齿轮本体422’啮合的连接齿轮本体423’，该连接齿轮本体423’设置有两个。诚然，在其他实施例中，连接齿轮本体423’的个数也可为其他，在此不做具体限定，根据实际情况而定。
切换组件还包括与齿轮连接的旋钮424’，旋钮424’可设置在第一齿轮本体421’、第二齿轮本体422’及连接齿轮本体423’中的一个或多个上，以方便操作者操作，在此不做具体限定，根据实际情况而定。
综上所述：通过设置有挡板及与挡板41联动的手柄421，挡板41具有用以将排草口11打开的打开位置A及用以将排草口11关闭的关闭位置B，手柄421联动挡板41在打开位置A及关闭位置B之间移动时处于同一平面内，不占用空间，使得割草机100体积更为紧凑；；当挡板41未将排草口闭合时，割草机100处于收草模式，驱动件42驱动挡板41闭合排草口时，割草机100处于碎草模式，快速切换，无需安装额外的碎草附件，快捷方便且高效；同时，挡板41在打开位置A时，位于排草通道15及排草口11之外，不影响草屑的排出且不会沾染草屑造成堵塞，方便快捷。
请参见图9至图11，本申请的另一较佳实施例中的割草机100，包括机壳1、设置在机壳1内且对目标物进行切割动作的切割组件3、设置在机壳1内且用以驱动切割组件3运行的驱动组件(未图示)及与机壳1连接的轮组2，在本实施例中，该目标物为草，诚然，在其他实施例中，目标物也可为其他，根据实际情况而定。为了方便用户使用割草机100，割草机100还包括设置在机壳1上的推杆座(未图示)及与推杆座连接以供操作者抓持的上推杆(未图示)，操作者通过抓持上推杆后推动割草机100前进或后退。通常推杆座及上推杆设置在机壳1的后端，切割组件3设置在割草机100的前端且位于其底面，以使得割草机100在移动时进行割草动作。
机壳1包括形成有切割腔131的蜗壳13及与蜗壳13连接的风道壳体14，切割组件3设置于蜗壳13内，以图中箭头a所指方向为前方，对应地，与图示a所指方向相反的即为后方，与前后方垂直的方向即为左右方向， 比如：风道壳体14设置在蜗壳13的后方。风道壳体14上开设有与切割腔131连通设置的排草通道15，排草通道15具有靠近蜗壳13设置的排草口11、及远离蜗壳13设置且用以与外部收集装置连接的集草口16。外部收集装置可以为布袋等结构，在此不做具体限定。在本实施例中，风道壳体14与蜗壳13一体成型设置，简化制造工艺且无需后续安装，两者之间也不会存在缝隙影响整体外观的美观性。诚然，在其他实施例中，风道壳体14与蜗壳13也可分体设置后进行连接，连接方式包括但不限于：粘接，焊接、卡接等，在此不做具体限定，根据实际情况而定。
另外，在其他实施例中，机壳1的结构不限于设置为上述的蜗壳13和风道壳体14。例如，机壳1包括底部敞开的切割腔131，切割腔131的侧壁上设有与外部空间连通的排草通道，排草通道大致沿切割腔131内切割组件3的径向设置。
切割组件3设置于切割腔131内且对目标物进行切割动作，切割组件在割草工作时转动形成的工作平面为切割平面。一示例中，包括刀盘，刀盘包括刀盘本体及可枢转地安装在刀盘本体上的多个刀片。多个刀片沿刀盘本体的周向均匀分布在刀盘本体的边缘。诚然，切割组件3也可为其他形式，例如单独的条形刀片等。
割草机100还包含能量组件，能量组件用于为割草机100供能，在本实施例中，能量组件包含电池包(未图示)，割草机通过电池包进行供能，且电池包可拆卸地安装于切割腔131的上方。
机壳1上设置有排草口11，在本实施例中，于割草机100的前进方向上，排草口11开设在机壳1的后侧。诚然，在其他实施例中，该排草口11也可设置在机壳1的其他位置上，如机壳1的侧方，在此不做具体限定，根据实际情况而定。
割草机100具有将目标物自切割腔131通过排草通道15排出至机壳1外的碎草模式及将目标物在切割腔131内直接切碎的碎草模式，当割草机100处于排草模式时，目标物在切割组件3的气流作用下排出。
结合图9至图12所示，割草机100还包括切换组件4。切换组件4将排草口11关闭进而使得排草通道15与切割腔131隔绝以使得割草机100处于碎草模式，或将排草口11打开进而使得排草通道15与切割腔131连通以使得割草机100处于排草模式，只需调节切换组件4即可实现割草机100的碎草模式及排草模式的切换，快捷方便，无需额外安装碎草附件。碎草模式下，由于排草口11关闭，被收割的草不能从排草通道15排出切割腔131，因此草在切割腔131内受到切割组件3的反复切割，被粉碎为较小的颗粒。
切换组件4包括挡板41及用于驱动挡板41的运动的驱动件5。其中，如图2所示，挡板41具有打开排草口11的打开位置A，如图11所示，挡板41具有关闭排草口11的关闭位置B，驱动件5能够驱动挡板41在打开位置A及关闭位置B之间移动以闭合或打开排草口11。呈上述，如图10 所示，当挡板41未遮挡排草口11以使得排草口11打开时，排草通道15与切割腔131连通，割草机100处于排草模式，在离心力的作用下，混杂有被收割的草的气流将草自排草口11排出至机壳1外。如图11所示，当挡板41遮挡排草口11以将排草口11闭合时，排草通道15与切割腔131隔绝，割草机100处于碎草模式，被收割的草在机壳1内不停旋转而无法排出至机壳1外，继而在切割组件3的切削作用下进行碎草动作，直至割草机100停止运行，碎草在割草机100停止运行后掉落至地面。
驱动件5还包括供操作者操作的操作部54，操作操作部54能够驱动挡板41在打开位置A及所述关闭位置B之间切换。割草机100设有与切割平面相垂直的竖切面，操作部54能够在第一位置和第二位置间转动以带动挡板41在与竖切面基本平行的平面上由关闭位置B向打开位置A转动，以此，操作部54联动挡板41在打开位置与关闭位置之间的移动路径基本均处于同一平面内，使得割草机100整体结构更为紧凑，挡板41的位置移动无需占用较多空间。在本申请的一实施例中，操作部优选为手柄54，当然，在其他实施例中，操作部也可以是其他可供用户转动或推动的零件，比如：推纽或旋钮等。在本申请的优选实施例中，竖切面与割草机前进方向基本垂直，且操作部54能够沿竖切面在第一位置及第二位置间转动，以此，一方面，挡板41的运动仅会占用割草机100左右方向上的空间，而基本不会占用割草机100的前后方向上的空间，从而进一步地减少了挡板41移动所需的位置，另一方面，也可以进一步地减少手柄54运动所占据的壳体1上的空间。当然，在其他实施例中，竖切面与割草机的前进方向的夹角也可以是不完全垂直，可以有一定偏差，具体为85度‐95度。
其中，如图12所示，驱动件5包括第一旋转件51、第二旋转件52和连杆53，连杆53连接第一旋转件51与第二旋转件52，第二旋转件52与挡板41固定连接。其中，第一旋转件51被驱动转动时，第一旋转件51通过连杆53带动第二旋转件52转动，第二旋转件52转动时带动挡板41转动。手柄54与第一旋转件51相连，手柄54能够在第一位置和第二位置之间转动，手柄54处于第一位置时，挡板41处于所述关闭位置，手柄54由第一位置向第二位置运动时，手柄54驱动第一旋转件51转动，并通过连杆53带动第二旋转件52转动，第二旋转件52则带动挡板41由关闭位置向打开位置转动。
进一步地，风道壳体14还设有还包括导向槽141，挡板41由打开位置向关闭位置运动时，挡板41能够绕着轴线自风道壳体14的下方穿过导向槽141向风道壳体14的上方旋转以遮蔽排草口11。在本申请一实施例中，导向槽141构造为L型，导向槽141设置在围成排草口11的相邻的两侧壁上，并形成朝向挡板运动路径的方向上贯穿的开口。当挡板41在打开位置及关闭位置切换时，挡板41可沿着导向槽141运动，当割草机处于排草模式时，碎草会堆积于导向槽141内，影响挡板41的正常转动。而在本实施例中，当割草机由排草模式向碎草模式切换时，挡板41由打开位置向 关闭位置运动，此时，挡板41沿着导向槽141自风道壳体14的下方向风道壳体14的上方转动，并推动堆积于导向槽141内的草与导向槽141分离，以此，可避免割草机长期工作所造成的导向槽141堵塞，进一步地也可避免割草机无法正常切换碎草模式及排草模式。需要注意的是所述轴线在该实施例中，与第二旋转件52的轴线共线。
进一步地，割草机100具有在与割草机前进方向相垂直且与蜗壳13后端相切的切面(参阅图15，以虚线P1表示)，当该切面P1与导向槽141最前端缘的距离较近时，则蜗壳13与导向槽141连接处太薄，强度较差；当该切面P1与导向槽141的最前端缘的距离较远时，割草机处于排草模式时，碎草易于堆积在该连接处，从而使得割草机执行碎草模式时，堆积的草会掉落在草坪上，影响碎草质量，降低用户体验。在一实施例中，请具体参考图15，该切面P1与导向槽141最前端缘的距离L1范围为4‐30mm，以此，一方面可以满足割草机结构的强度要求，另一方面，切面P1与导向槽141之间的距离也不会太远，不会有大量的草堆积。在本申请的优选实施例中，切面P1与导向槽141最前端缘的距离L1为6mm。
如图12所示，第一旋转件51包括第一旋转轴511，第二旋转件52包括第二旋转轴521，第二旋转轴521与挡板41固定连接。连杆53的一端与第一旋转轴511通过第一枢轴512转动连接，第一枢轴512与第一旋转轴511相对偏心设置。连杆53的另一端与第二旋转轴521通过第二枢轴522转动连接，第二枢轴522与第二旋转轴521相对偏心设置。
为了方便驱动第一旋转轴511，手柄54设置于机壳1的外部，且可以驱动第一旋转轴511转动。其中，手柄54的一端与第一旋转轴511固定连接，手柄54能够在第一位置和第二位置之间转动，手柄54处于所述第一位置时，挡板41处于关闭位置，手柄54处于第二位置时，挡板41处于打开位置。
本实施例中，驱动件5包括第一旋转件51、第二旋转件52和连杆53，可以更加灵活地设计手柄54的位置，进而利于割草机100的整体结构设计。当排草口11的位置确定时，手柄54与挡板41分别与第一旋转件51和第二旋转件52连接，由于连杆53的存在，手柄54与挡板41的距离得以增大。手柄54不必紧邻挡板41，从而可以灵活地设计手柄54的位置，利于机壳1的外形结构设计。
一示例中，如图9所示，割草机100的机壳1具有纵向的中轴线Z。中轴线Z的延伸方向与割草机100的前进方向一致，中轴线Z沿机壳1的长度方向延伸。结合图9至图11所示，手柄54处于第一位置或第二位置时，手柄偏向中轴线Z的一侧。也就是说，在机壳1的宽度方向上，手柄54处于第一位置或第二位置时，手柄54偏向机壳1的一侧，未处于中轴线Z处。具体而言，可以是手柄54处于第一位置时，手柄54偏向机壳1的一侧；也可以是手柄54处于第二位置时，手柄54偏向机壳1的一侧；还可以是手柄54处于第一位置时，手柄54偏向机壳1的一侧，当手柄54 切换至第二位置时，手柄54同样偏向机壳1的一侧。由于手柄54偏向机壳1的一侧，给机壳1上方的中间位置腾出了空间，可以用来设置其他附件。
进一步地，割草机100具有与割草机100的前进方向相垂直且与切割平面相垂直的中心面，操作部54在左右方向上偏置于中心面的一侧，且当操作部54在第一位置及第二位置间转动时，在纵向上，操作部54与能量组件的左后端缘或者右后端缘间隔设置。具体到本实施例中，割草机100可拆卸地适配背包式电池包(未图示)，且背包式电池包外还设有保护仓(未图示)，电池包收容于保护仓内，当操作部在第一位置及第二位置间转动时，保护仓的正后方则腾出了空间，操作部54不会与电池包的保护仓发生干涉，以此，割草机100可正常地实现排草模式及碎草模式的切换。
当操作部54在竖切面内由第一位置运动至第二位置所转动的角度小于挡板由关闭位置运动至打开位置所转动的角度时，操作部54仅需转动较小的角度，便可以实现割草机的碎草模式及排草模式的切换，从而减少了操作部54工作所需的操作空间，使得割草机100的整体结构更为紧凑，同时，进一步地释放了机壳1上的空间，便于其他零部件的安装。当操作部54在竖切面内由第一位置运动至第二位置所转动的角度等于挡板由关闭位置运动至打开位置所转动的角度时，操作部54的转动角度与挡板41的转动角度一致，操作部54及挡板41运动所占据的空间基本一致，以此，割草机100的整体结构更为稳定。
进一步地，操作部54设置在机壳1上方，机壳1上方还设有电池包等其他结构，当操作部54转动占用过多的空间时，会影响其他零部件的安装；挡板41设置于机壳1内部，可进行转动以实现排草口的关闭及打开，当挡板41转动角度过小时，无法可靠地封闭排草口，当挡板41转动角度过大时，则也会占据过多的空间，以此，在本申请的一实施例中，操作部54在竖切面上转动的角度不大于120度，以带动挡板41由所述关闭位置转动不大于150度的角度向打开位置切换。具体到本申请的优选实施例，操作部54转动角度为90度，对应地，挡板41的转动角度也为90度。
结合图10至图12所示，一示例中，第一旋转轴511的轴线X及第二旋转轴512的轴线Y均平行于中轴线Z。此时，连杆53沿机壳1的宽度方向延伸，连杆53将手柄54和挡板41在机壳1的宽度方向上错开。第一旋转轴511和第二旋转轴512使手柄54和挡板41在机壳1的长度方向上错开，由此，手柄54和挡板41在机壳1的长度和宽度方向上均能够错开较大的距离，可以更加灵活地设计手柄54和挡板41的位置，利于释放机壳1上方的空间。当然，在一实施例中，第二旋转件52的转动角度设置为大于第一旋转件51的转动角度，通过连杆53放大第一旋转件51的转动角度，即第一旋转件51只需要转动相对小的角度即可联动挡板41，使挡板41具有较大的运动行程，进而挡板41打开或封闭排草通道15。由此能够减少驱动第一旋转件51时所需要的操作空间，使得割草机100整体结构 更为紧凑。
一实施例中，第一枢轴512与第一旋转轴511之间的偏心距(为方便描述，下文简称第一偏心距)大于第二枢轴522与第二旋转轴521之间的偏心距(为方便描述，下文简称第二偏心距)。第一枢轴512与第一旋转轴511之间的偏心距即第一偏心距指第一枢轴512的轴线与第一旋转轴511的轴线X之间的垂直距离。第二枢轴522与第二旋转轴521之间的偏心距即第二偏心距指第二枢轴522的轴线与第二旋转轴521的轴线Y之间的垂直距离。第一旋转轴511被驱动旋转时，能够通过连杆53带动第二旋转轴521转动。第一旋转轴511的轴线X平行于第二旋转轴521的轴线Y。
当第一旋转轴511被驱动绕第一旋转轴511的轴线X转动时，第一旋转件51的旋转运动通过第一枢轴512转换为连杆53的直线运动，具体到图12中，第一旋转轴511分别旋转沿两个相反方向旋转时，连杆53分别向右运动和向左运动。连杆53直线运动的同时，连杆53通过第二枢轴522驱动第二旋转轴521绕第二旋转轴521的轴线Y转动。由于第一偏心距大于第二偏心距，连杆53运动时，第二旋转轴521需要转动更多角度才能适应连杆53的运动，第二旋转轴521能够带动挡板41实现较大的运动行程。从而能够实现放大第一旋转件51的转动角度的目的，能够减少驱动第一旋转件51时所需要的操作空间，使得割草机100整体结构更为紧凑。
一实施例中，如图12所示，机壳1上设有第一限位结构17。第一旋转轴511可转动地收纳在第一限位结构17中。第一限位结构17包括定位部171和锁定件172，第一旋转轴511收纳在定位部171内且被锁定件172限位。锁定件172与定位部171可拆卸地连接。当锁定件172与定位部171分离时，可以取放第一旋转轴511。通过上述手段，安装第一旋转件51时较为方便。在其他实施例中，第一旋转轴511也可以通过轴承可转动地支撑于机壳1。类似地，机壳1上设有第二限位结构18。第二旋转轴521可转动地收纳在第二限位结构18中。第二限位结构18可以与第一限位结构17采取完全相同的结构，不再赘述.
挡板41固定连接于第二旋转轴521，由第二旋转轴521带动旋转。如图4所示，一示例中，挡板41大致呈四边形，挡板41的一端部固定于第二旋转轴521，挡板41的对角上另一端部设有枢接孔410，用于与机壳1通过连接轴(未图示)可相对转动地连接。由此，第二旋转轴521转动时能够带动挡板41以上述的连接轴为轴转动。挡板41与第二旋转轴521的连接方式不作具体限定，如可以是焊接、紧固连接等方式。
挡板41与机壳1转动连接处位于排草通道15和切割腔131以外，因此挡板41处于关闭位置时，挡板41能够转动至完全脱离排草通道15和切割腔131的位置，即便在排草口11内无法看见挡板41。这样设置的好处在于：当割草机100将碎草自排草口11排出至机壳1外时，草不会沾染到挡板41上，因此不会造成草堵塞排草通道15的现象。一实施例中，挡板41转动时的转动平面大致垂直于排草通道15。另外，结合图2至图4， 本实施例中，挡板41的转动平面垂直于地面，而切割组件3的切割平面则是平行于地面。挡板41的转动轴线(也即上述的挡板41与机壳1相连的连接轴的轴线)平行于切割平面，挡板41的转动平面平置于切割组件3的切割平面。
为了避免连杆53晃动，一实施例中，如图12所示，机壳1上设有直线导向通道19，连杆53穿设于直线导向通道19中。一示例中，直线导向通道19包括设置在连杆53两侧的上筋板191和下筋板192。上筋板191和下筋板192一起提供了直线导向路径，约束连杆53只能沿直线往复运动。在其他示例中，直线导向通道19包括圆筒状通道。
如图12所示，一实施例中，连杆53为板状元件。在其他的实施例中，连杆53也可以为杆状元件。
一实施例中，如图12所示，第一旋转件51还包括偏心轴513，偏心轴513与第一旋转轴511相连且彼此偏心设置，第一枢轴512设置于偏心轴513且第一枢轴512与偏心轴513共轴线。偏心轴513的一端与第一旋转轴511通过横臂514连接。横臂514使得偏心轴513与第一旋转轴511在第一旋转轴511的径向上错开距离值刚好为第一偏心距，横臂514使偏心轴513与第一旋转轴511在第一旋转轴511的轴向上错开或刚好衔接。偏心轴513的另一端同轴地设置有第一枢轴512。第一枢轴512可转动地安装于与连杆53上设置的孔中。通过上述手段，一方面第一旋转轴511与连杆53实现偏心传动连接，另一方面，在第一旋转轴511的轴向上，偏心轴513使得连杆53与第一旋转轴511存在间距，从而便于根据需要调整连杆53的安装位置。在其他的实施例中，第一枢轴512也可以直接设置于横臂514的远离第一旋转轴511的一端。
一实施例中，如图12所示，第二旋转件52还包括摇臂523，摇臂523的一端与第二旋转轴521固定连接，摇臂523的另一端通过第二枢轴522与连杆53转动连接。一实施例中，摇臂523的另一端设有第二枢轴522，第二枢轴522可转动地安装在连杆53上的孔中。摇臂523沿第二旋转轴521的径向延伸，使得第二枢轴522与第二旋转轴521在第二旋转轴521的径向上错开距离刚好为第二偏心距。在其他的实施例中，第二旋转件52的摇臂523的末端也可以设置类似于第一旋转件51中的偏心轴513，偏心轴513使得在第二旋转轴521的轴向上，偏心轴513使得连杆53与第二旋转轴521存在间距，从而便于根据需要调整第二旋转轴521的安装位置。
一示例中，结合图9、图13和图14所示，机壳1设有开口12，手柄54穿过开口12且与第一旋转轴511固定连接。手柄54能够在开口12相对机壳1转动，进而带动第一旋转轴511旋转。一实施例中，手柄54突出于机壳1的上方，符合日常操作习惯。通过设置手柄54，使用者能够方便地驱动第一旋转轴511转动，较为省力。手柄54转动时，通过第一旋转件51、第二旋转件52和连杆53，手柄54只需要转动相对小的角度即可驱动挡板41在关闭位置和打开位置之间切换。手柄54所需要的操作空间 较小，使得割草机100体积更为紧凑。
进一步地，手柄54的转动平面与挡板41的转动平面平行或二者重合，使得割草机100体积更为紧凑。具体地，手柄54的转动平面垂直于切割组件3的切割平面，挡板41的转动平面也垂直于切割组件3的切割平面，两个转动平面彼此平行；或者两个平面为同一平面，即手柄54和挡板41在同一平面内转动。更具体而言，手柄54和挡板41均在沿割草机100高度方向延伸的平面内转动，对于挡板41和手柄54而言，设置时只需要考虑高度方向的结构尺寸，使得割草机100体积更为紧凑。此时，第一旋转轴511的轴线X和第二旋转轴521的轴线Y均沿割草机100的前后方向延伸。
为了使挡板41能够保持在打开位置和关闭位置，一实施例中，结合图5和图6所示，开口12中设有卡板121，卡板121用于限制手柄54自由转动。具体地，卡板121位于手柄54的第一位置与第二位置之间，手柄54处于第一位置时，卡板121与所述手柄54相抵接以限制手柄54向第二位置运动，手柄54处于第二位置时，卡板121与手柄54相抵接以限制所述手柄54向第一位置运动。当需要切换手柄54的位置时，首先使手柄54与卡板121分离，然后再转动手柄54使手柄54重新与卡板121相抵接。
一示例中，如图14所示，开口12包括相对的两个内侧壁122，卡板121设于其中一内侧壁122，且卡板121与另一内侧壁122之间形成可供手柄54通过的间隙123。图6示意了手柄54在第一位置时与卡板121的相对位置关系，其中手柄54抵靠在右侧的卡板121上，不能够轻易地运动至第二位置。需要将手柄54由第一位置切换至第二位置(虚线圆C锁示意的位置)时，将手柄54向左侧轻轻转动，然后再向上推动手柄54使手柄54运动至与上述的间隙123相对应的位置，此时再转动手柄54至第二位置，然后向下拉动手柄54，使手柄54抵靠在卡板121的左侧。本示例中，在开口12的内侧壁122设置卡板121，无论手柄54处于第一位置或第二位置，卡板121均能起到限位手柄54的作用，从而提供了一种简单的解决方案，能够使挡板41能够保持在打开位置和关闭位置，避免割草机100作业模式意外地切换。
进一步地，卡板121为弹性件。卡板121使用具有弹性的材质制成，这样在操作手柄54与卡板121分离或抵接的过程中，较为省力，具有良好的操作手感。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对本申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (20)

  1. 一种割草机，包括：
    机壳，包括形成有切割腔的蜗壳及与所述蜗壳连接的风道壳体，所述风道壳体上开设有与所述切割腔连通设置的排草通道，所述排草通道设有排草口；
    切割组件，设于所述切割腔内且对目标物进行切割动作，所述切割组件在割草工作时转动形成的工作平面为切割平面；
    挡板，安装于所述机壳，具有封闭所述排草通道的关闭位置和打开所述排草通道的打开位置；
    驱动件，设置于所述机壳，所述驱动件还包括供操作者操作的操作部，操作所述操作部能够驱动所述挡板在所述打开位置及所述关闭位置之间切换；
    其特征在于，所述挡板在所述打开位置时位于所述排草通道及所述切割腔之外；所述割草机设有与所述切割平面相垂直且与所述割草机前进方向相垂直的竖切面，所述操作部能够在第一位置和第二位置间转动以带动所述挡板在与所述竖切面基本平行的平面上由所述关闭位置向所述打开位置转动。
  2. 如权利要求1所述的割草机，其特征在于，所述风道壳体还包括导向槽，所述挡板由所述打开位置向所述关闭位置运动时，所述挡板能够绕着轴线自所述风道壳体的下方穿过所述导向槽向所述风道壳体的上方旋转以遮蔽所述排草口。
  3. 如权利要求2所述的割草机，其特征在于，所述导向槽设置在围成所述排草口的相邻的两侧壁上，并形成朝向所述挡板运动路径的方向上贯穿的开口。
  4. 如权利要求2所述的割草机，其特征在于，所述割草机具有在与所述割草机前进方向相垂直且与所述蜗壳后端相切的切面，所述切面与所述导向槽最前端缘的距离范围为4‐30mm。
  5. 如权利要求1所述的割草机，其特征在于，所述操作部在所述竖切面上转动的角度不大于120度，以带动所述挡板由所述关闭位置转动不大于150度的角度向所述打开位置切换。
  6. 如权利要求1所述的割草机，其特征在于，还包含能量组件，所述能量组件用于为所述割草机供能，所述能量组件还包含电池包，所述能量组件安装在所述切割腔的上方，所述割草机具有与所述割草机的前进方向相垂直且与所述切割平面相垂直的中心面，所述操作部在左右方向上偏置于所述中心面的一侧，且当所述操作部在所述第一位置及所述第二位置间转动时，在纵向上，所述操作部与所述能量组件的左后端缘或者右后端缘间隔设置。
  7. 如权利要求1所述的割草机，其特征在与，所述驱动件包括第一旋转件、第二旋转件和连杆，所述连杆连接所述第一旋转件与第二旋转件， 所述第二旋转件与所述挡板相连；
    所述操作部与所述第一旋转件相连，所述操作部处于所述第一位置时，所述挡板处于所述关闭位置，所述操作部由所述第一位置向所述第二位置运动时，所述操作部驱动所述第一旋转件转动，所述第一旋转件通过所述连杆带动所述第二旋转件转动，所述第二旋转件则带动所述挡板由所述关闭位置向所述打开位置转动。
  8. 如权利要求7所述的割草机，其特征在于，所述第一旋转件包括第一旋转轴，所述第二旋转件包括第二旋转轴，所述第二旋转轴与所述挡板固定连接，所述第一旋转轴与所述操作部的一端固定连接。
  9. 如权利要求8所述的割草机，其特征在于，所述连杆的一端与所述第一旋转轴通过第一枢轴转动连接，所述第一枢轴与所述第一旋转轴相对偏心设置，所述连杆的另一端与所述第二旋转轴通过第二枢轴转动连接，所述第二枢轴与所述第二旋转轴相对偏心设置。
  10. 如权利要求9所述的割草机，其特征在于，所述第一旋转件还包括偏心轴，所述偏心轴与所述第一旋转轴相连且彼此偏心设置，所述第一枢轴设置于所述偏心轴且所述第一枢轴与所述偏心轴共轴线。
  11. 如权利要求9所述的割草机，其特征在于，所述第二旋转件还包括摇臂，所述摇臂的一端与所述第二旋转轴固定连接，所述摇臂的另一端通过所述第二枢轴与所述连杆转动连接。
  12. 一种割草机，包括：
    机壳，包括形成有切割腔的蜗壳及与所述蜗壳连接的风道壳体，所述风道壳体上开设有与所述切割腔连通设置的排草通道，所述排草通道设有排草口；
    切割组件，设置在所述切割腔内且对目标物进行切割动作；
    驱动组件，驱动所述切割组件运行；
    所述割草机具有将目标物自所述切割腔通过所述排草通道排出至所述机壳外的排草模式及将目标物在所述蜗壳内直接切碎的碎草模式；
    其特征在于，所述割草机还包括切换组件，所述切换组件将所述排草口关闭进而使得所述排草通道与所述切割腔隔绝以使得所述割草机处于所述碎草模式，或将所述排草口打开进而使得所述排草通道与所述切割腔连通以使得所述割草机处于所述排草模式，所述切换组件包括：
    挡板，具有打开所述排草口的打开位置及关闭所述排草口的关闭位置，所述挡板在所述打开位置时位于所述排草通道及所述切割腔之外；
    驱动件，联动所述挡板，所述驱动件能够带动所述挡板转动以使所述挡板在所述打开位置及关闭位置之间切换。
  13. 如权利要求12所述的割草机，其特征在于，所述风道壳体还包括导向槽，所述挡板由所述打开位置向所述关闭位置运动时，所述挡板能够绕着轴线自所述风道壳体的下方穿过所述导向槽向所述风道壳体的上方旋转以遮蔽所述排草口。
  14. 如权利要求13所述的割草机，其特征在于，所述导向槽设置在围成所述排草口的相邻的两侧壁上，并形成朝向所述挡板运动路径的方向上贯穿的开口。
  15. 如权利要求13所述的割草机，其特征在于，所述割草机具有在与所述割草机前进方向相垂直且与所述蜗壳后端相切的切面，所述切面与所述导向槽最前端缘的距离范围为4‐30mm。
  16. 如权利要求12所述的割草机，其特征在于，所述驱动件包括手柄，所述切换组件还包括贯穿设置在所述手柄上的连接轴，所述连接轴的一端与所述机壳转动连接或滑动连接，所述连接轴的另一端与所述挡板固定连接；所述切换组件还包括设置在所述手柄上的定位销轴，所述机壳上设置有与所述定位销轴卡合的凹槽；所述手柄联动所述挡板移动至所述打开位置或关闭位置，所述定位销轴与所述凹槽卡合定位。
  17. 如权利要求16所述的割草机，其特征在于，所述驱动件还包括解锁件，所述解锁件设置在所述手柄上且联动所述定位销轴相较于所述手柄移动，以使得所述定位销轴与所述凹槽卡合或脱离。
  18. 如权利要求12所述的割草机，其特征在于，所述驱动件包括第一旋转件、第二旋转件和连杆，所述连杆连接所述第一旋转件与第二旋转件，所述第二旋转件与所述挡板连接。
  19. 如权利要求18所述的割草机，其特征在于，所述驱动件还包含手柄，所述手柄能够在第一位置和第二位置之间转动，所述手柄处于所述第一位置时，所述挡板处于所述关闭位置，所述手柄由所述第一位置向所述第二位置运动时，所述手柄驱动所述第一旋转件转动，并通过所述连杆带动所述第二旋转件转动，所述第二旋转件则带动所述挡板由所述关闭位置向所述打开位置转动。
  20. 如权利要求19所述的割草机，其特征在于，所述第一旋转件包括第一旋转轴，所述第二旋转件包括第二旋转轴，所述第二旋转轴与所述挡板固定连接，所述手柄的一端与所述第一旋转轴固定连接；所述连杆的一端与所述第一旋转轴通过第一枢轴转动连接，所述第一枢轴与所述第一旋转轴相对偏心设置，所述连杆的另一端与所述第二旋转轴通过第二枢轴转动连接，所述第二枢轴与所述第二旋转轴相对偏心设置。
PCT/CN2021/085847 2020-04-07 2021-04-07 割草机 WO2021204167A1 (zh)

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US3706189A (en) * 1972-02-04 1972-12-19 Harry T Rutherford Safety mower and leaf harvester-mulcher
CN201219379Y (zh) * 2008-06-11 2009-04-15 江苏沃得植保机械有限公司 草坪割草机的侧排草和碎草部件的快速转换机构
CN204131982U (zh) * 2014-08-27 2015-02-04 苏州宝时得电动工具有限公司 集草和碎草模式转换机构和割草机
CN207340527U (zh) * 2017-09-29 2018-05-11 南京德朔实业有限公司 手推式割草机
CN108718663A (zh) * 2017-04-21 2018-11-02 苏州宝时得电动工具有限公司 割草机
CN208572786U (zh) * 2018-06-29 2019-03-05 南京德朔实业有限公司 割草机、底盘组件以及底盘
CN212487333U (zh) * 2020-04-07 2021-02-09 苏州宝时得电动工具有限公司 割草机

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3706189A (en) * 1972-02-04 1972-12-19 Harry T Rutherford Safety mower and leaf harvester-mulcher
CN201219379Y (zh) * 2008-06-11 2009-04-15 江苏沃得植保机械有限公司 草坪割草机的侧排草和碎草部件的快速转换机构
CN204131982U (zh) * 2014-08-27 2015-02-04 苏州宝时得电动工具有限公司 集草和碎草模式转换机构和割草机
CN108718663A (zh) * 2017-04-21 2018-11-02 苏州宝时得电动工具有限公司 割草机
CN207340527U (zh) * 2017-09-29 2018-05-11 南京德朔实业有限公司 手推式割草机
CN208572786U (zh) * 2018-06-29 2019-03-05 南京德朔实业有限公司 割草机、底盘组件以及底盘
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