WO2019238043A1 - 骑乘式割草机 - Google Patents

骑乘式割草机 Download PDF

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Publication number
WO2019238043A1
WO2019238043A1 PCT/CN2019/090721 CN2019090721W WO2019238043A1 WO 2019238043 A1 WO2019238043 A1 WO 2019238043A1 CN 2019090721 W CN2019090721 W CN 2019090721W WO 2019238043 A1 WO2019238043 A1 WO 2019238043A1
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WO
WIPO (PCT)
Prior art keywords
lawn mower
riding lawn
rotating member
pedal
riding
Prior art date
Application number
PCT/CN2019/090721
Other languages
English (en)
French (fr)
Inventor
吴�荣
山冈敏成
孟鼎铭
Original Assignee
南京德朔实业有限公司
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
Application filed by 南京德朔实业有限公司 filed Critical 南京德朔实业有限公司
Priority to CN201980007504.7A priority Critical patent/CN111629584B/zh
Publication of WO2019238043A1 publication Critical patent/WO2019238043A1/zh
Priority to US17/114,834 priority patent/US11944039B2/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00—Brake-action initiating means
    • B60T7/02—Brake-action initiating means for personal initiation
    • B60T7/04—Brake-action initiating means for personal initiation foot actuated
    • B60T7/045—Brake-action initiating means for personal initiation foot actuated with locking and release means, e.g. providing parking brake application
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/82—Other details
    • A01D34/824—Handle arrangements
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D69/00—Driving mechanisms or parts thereof for harvesters or mowers
    • A01D69/10—Brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00—Brake-action initiating means
    • B60T7/02—Brake-action initiating means for personal initiation
    • B60T7/04—Brake-action initiating means for personal initiation foot actuated
    • B60T7/06—Disposition of pedal
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/12—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in an indefinite number of positions, e.g. by a toothed quadrant
    • G05G5/20—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in an indefinite number of positions, e.g. by a toothed quadrant by locking a quadrant, rod, or the like carried by the member
    • G05G5/24—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in an indefinite number of positions, e.g. by a toothed quadrant by locking a quadrant, rod, or the like carried by the member by positive interengagement, e.g. by a pawl
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D2101/00—Lawn-mowers
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/64—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H21/00—Gearings comprising primarily only links or levers, with or without slides
    • F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
    • F16H21/44—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for conveying or interconverting oscillating or reciprocating motions
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/30—Controlling members actuated by foot
    • G05G1/44—Controlling members actuated by foot pivoting

Definitions

  • This document relates to a riding electric machine, such as a riding lawn mower.
  • lawn mowers are widely used in fields such as mowing lawns and vegetation.
  • the existing riding lawn mower as a small one-man construction machine that can be driven, is characterized by its special functions in terms of its overall structure.
  • the existing riding lawn mower is The special use environment, performance index requirements, human-machine relationship matching, safety performance requirements and other factors make the structure of the body itself more complicated, especially its dual-pedal brake and parking structure greatly occupy the main frame space of the lawn mower.
  • the complexity of each connecting member is also increased from the structure, especially the link structure and the transmission structure.
  • the riding lawn mower on the premise of meeting its various performance requirements, functional requirements, and safety requirements, to achieve a simplified structure, especially the combination of its braking function and parking function has been an urgent need to solve The problem.
  • This article provides a riding lawn mower capable of combining its braking function and parking function.
  • a riding lawn mower includes: a seat provided for a user to ride; a main frame provided for carrying a seat; a mowing element provided for cutting vegetation; a walking component provided for enabling the riding lawn mower to function Walking; operating component, set for user operation to control the riding lawn mower walking and power output; riding lawn mower also includes: parking system, set to make the riding lawn mower in the parking state and Switching between non-parking states; link mechanism, connected to the parking system; gearbox, connected to the link mechanism; parking system controls the gearbox through the link mechanism to achieve braking; when the parking system is locked, riding When the lawn mower is in the parking state, the brake is locked; when the parking system is not locked or unlocked, the riding lawn mower is in the non-parking state.
  • FIG. 1 is a perspective view of a riding lawn mower and a schematic structural diagram of a power tool system
  • FIG. 2 is a schematic view of a brake structure of the riding lawn mower in FIG. 1;
  • FIG. 3 is a plan view of the riding lawn mower parking system of FIG. 1;
  • FIG. 4 is a plan view of the riding lawn mower parking system without a cover plate in FIG. 3;
  • FIG. 5 is a perspective view of the riding lawn mower parking system in FIG. 4;
  • FIG. 6 is a plan view of the riding lawn mower parking system in FIG. 4 in a parked state
  • FIG. 7 is a plan view of the riding lawn mower parking system of FIG. 6 in a parked state
  • FIG. 8 is a plan view of the riding lawnmower parking system in FIG. 7 released from parking.
  • the riding electric machine shown in FIG. 1 may be an electric machine for working indoors or outdoors.
  • the riding electric machine specifically uses the riding lawn mower 100 as an example.
  • the lawn mower 100 can be operated by a user riding on it to trim the lawn, vegetation, and the like.
  • the riding electric machine can also be other types of tools. It can be a riding electric vehicle, such as an all-terrain vehicle, a golf cart, or it can achieve its function by outputting a certain form of power. Riding electric tools, such as riding snowplows, riding agricultural machines, etc. Of course, it can be understood that riding electric machines can also be tools used for other purposes, such as riding mopeds, Riding forklifts, etc.
  • FIG. 1 the front side, rear side, upper side, and lower side as shown in FIG. 1 are also defined.
  • the riding lawn mower 100 includes a main frame 11, a seat 12, a power output assembly 13, a walking assembly 14, an operation assembly 15, and a power supply device 16.
  • the main frame 11 is configured to carry a seat 12, a power output component 13, a walking component 14, an operation component 15, and a power supply device 16, and the main frame 11 extends at least partially along a first line 101 direction parallel to the front-rear direction. Reasonably distributed to all parts of the main frame.
  • the seat 12 is provided for a user to ride, and the seat 12 is mounted on the main frame 11.
  • the seat 12 can slide along the first straight line 101 relative to the main frame 11, so that the seat 12 can move forward or backward.
  • the seat 12 specifically includes a bottom 121 and a backrest 122.
  • the bottom 121 extends substantially in the front-rear direction, and the backrest 122 extends upward from the bottom 121.
  • the power output component 13 includes an output member configured to output power to realize a mechanical function.
  • the output member may be a mowing element.
  • the power output component 13 is also connected to the main frame 11.
  • the power output component 13 may be specifically installed on the lower side of the main frame 11.
  • the power output assembly 13 further includes a motor and a chassis.
  • the mowing element is set to realize the mowing function
  • the motor is set to drive the mowing element to rotate at a high speed
  • the chassis is formed with an accommodation space provided to accommodate at least a part of the motor and the part of the divided grass element.
  • the power output component may include more than one mowing element.
  • the number of the first motors may correspond to the mowing element.
  • the walking assembly 14 is provided so that the riding mower 100 can walk on the lawn.
  • the walking assembly 14 may include a first walking wheel 141 and a second walking wheel 142.
  • the first walking wheel 141 is disposed on the front side of the second walking wheel 142 in the front-rear direction.
  • the number of the first traveling wheels 141 is two, and the number of the second traveling wheels 142 is also two.
  • the power output assembly 20 is at least partially disposed between the first traveling wheel 141 and the second traveling wheel 142, and in the direction along the first straight line 101, the seat 12 is also at least It is partially set between the first and second traveling wheels 141 and 142, so that the center of gravity G1 of the whole machine is located between the first and second traveling wheels 141 and 142 in the direction of the first straight line 101, thereby improving the integration.
  • the first traveling wheel 141 may be a universal wheel capable of rotating around the first axis 102, and the first traveling wheel 141 has a first diameter.
  • the walking assembly 14 further includes a second motor configured to drive the second walking wheel 142 to rotate about the second axis.
  • the number of the second motors can also be two. In this way, when the two second motors When the corresponding second traveling wheels 142 are driven to rotate at different rotation speeds, a speed difference is generated between the two second traveling wheels 142, so that the riding lawn mower 100 performs steering.
  • the second traveling wheel 142 has a second diameter, and the second diameter of the second traveling wheel 142 is larger than the first diameter of the first traveling wheel 141.
  • the operation assembly 15 is provided for operation by a user to control the walking and power output of the riding lawn mower 100.
  • the operation component 15 may include a first operation element 151 and a second operation element.
  • the first operating element 151 is provided for the user to manually operate to start the motor, so as to control the mowing element to cut grass and control the riding mower 100 to walk on the lawn, and the second operating element is provided for the user to step on to control the lawn mower. Operation status.
  • the power supply device 16 is provided to supply power to the motor.
  • the power supply device 16 includes a plurality of first battery packs 161, and the first battery packs 161 can be detached from the main frame 11 by a user.
  • the power tool system shown in FIG. 1 includes a riding lawn mower 100 and a hand-held power tool 100a herein.
  • the first battery pack 161 in the power supply device 16 provided for supplying power to the riding lawn mower 100 can be detached to be installed in the hand-held power tool 100a, so that the first battery pack 161 can also be used for the hand-held type
  • the power tool 100a provides a source of energy, that is, the first battery pack 161 in the power supply device 16 herein can be applied not only to the riding lawn mower 100, but also to other handheld power tools 100a. Therefore, the adaptation performance of the first battery pack 161 is improved, and the ability of the riding lawn mower 100 to adapt to the first battery pack 161 is also improved.
  • the handheld power tool 100a may be a garden tool such as a lawnmower, a pruning machine, a hair dryer, etc., or a torque output tool such as an electric drill, an electric hammer, or an electric circular saw, Saw tools such as jigsaws and reciprocating saws can also be abrasive tools such as angle grinders and sanders.
  • the first battery pack 161 may also be configured to supply power to a hand-held power tool, such as a hand-held lawn mower, a hand-held snow blower, and the like.
  • the second operating element is connected to the parking system 17, the parking system 17 is connected to the link mechanism 18, and the link mechanism 18 is connected to the gearbox 181 so as to realize braking. Therefore, the riding lawn mower 100 can switch between the parking state and the non-parking state under the braking state.
  • the transmission 181 also includes a brake pad which is provided as a brake. Understandably, when the riding lawn mower 100 needs to adjust the running speed of the riding lawn mower 100 due to road conditions or working conditions during running, if the speed is fast during downhill, it is necessary to step on the brake to slow down. Or you need to make a short stop during the uphill process.
  • the states formed by the braking process of the riding lawn mower 100 can be divided into two states: a non-parking state and a parking state, and the above states are switched by the parking system 17.
  • the parking system 17 includes a pedal 171, a pedal arm 172, a first rotating member 173, a base plate 174, a ratchet 175, a first elastic member 176, and a second elastic member. 177.
  • the pedal 171, the pedal arm 172, and the first rotating member 173 together constitute a pedal assembly.
  • the pedal assembly is the second operating element.
  • the pedal arm 172 includes two running sections. When the pedal arm 172 is depressed so that the pedal arm 172 is located in the first section, the riding mower 100 is in a non-parking state.
  • the parking system 17 controls the gearbox through the link mechanism 18 181 braking; when the pedal arm 171 is depressed to place the pedal arm 172 in the second section, the riding lawn mower 100 enters the parking state, and the parking system 17 controls the transmission 181 to brake and locks the braking state through the link mechanism 18.
  • the pedal 171 is fixedly connected to one end of the pedal arm 172 and the other end of the pedal arm 172 is fixedly connected to the first rotating member 173.
  • the user drives the first rotating member 173 to rotate about the first central axis 102 by stepping on the pedal 171.
  • the pedal 171 The pedal assembly consisting of the pedal arm 172 and the first rotating part 173 can be integrally formed, or can be fixedly connected by other methods such as welding, riveting or bolting, which is not repeated here, as long as the user can step on the pedal 171 to make the pedal
  • the assembly can be rotated around the first central axis 102.
  • a first connection hole 173a is formed on the upper side of the first rotating member 173 to be able to rotate around the first central axis 102 and form a connection with the substrate 174.
  • the first rotating member 173 passes through the first
  • the connection hole 173a is rotatably connected to the base plate 174.
  • An extension 173b for connecting the pedal arm 172 is formed on the front side of the first rotation member 173, and a first section protruding from the extension surface of the first rotation member 173 itself is formed on the rear side of the first rotation member 173.
  • a protruding portion 173c, and a second connecting hole connected to the ratchet 175 is formed near the first protruding portion 173c.
  • the ratchet 175 is fixedly connected to the first rotating member 173 through the second connecting hole and can rotate with the first
  • the piece 173 forms a synchronous rotation around the direction of the first central axis 102.
  • the first rotating member 173 is formed with a first mounting hole provided to mount the first elastic member 176, and the base plate 174 is formed with a second mounting hole provided to mount the first elastic member 176.
  • the first mounting hole, the second mounting hole, and the first connection hole 173a are not aligned. This can prevent the first rotating member 173 from rotating around the first connection hole 173a under the elastic force of the first elastic member 176.
  • the first mounting hole is provided on the extension portion 173b of the first rotating member 173 and is located on the left side of the first connection hole 173a
  • the second mounting hole is provided on the base plate 174 and located on On the right side of the first connection hole 173a, a second convex portion 174b is formed along the front-rear direction of the substrate 174 and at the same time on the upper side of the substrate 174, and the second mounting hole is provided on the second convex portion 174b.
  • the first elastic member 176 is mounted to the first and second mounting holes and has a pre-tightening force.
  • the elastic force of the first elastic member 176 needs to be overcome.
  • the pedal arm 172 is located in the first section and the riding lawn mower 100 is in a non-parking state, when the user disengages the pedal 171, the pedal assembly can be automatically reset by the action of the first elastic member 176.
  • the second rotating member 178 is formed with a pawl 178 a, which cooperates with the ratchet 175 connected to the first rotating member 173 to form a ratchet pawl structure. Stepping on the pedal 171, the pedal assembly can rotate in the first direction around the first center, the ratchet 175 engages with the pawl 178a, and when the user releases the pedal 171, the pedal assembly can be reset in the second direction by the first elastic member 176
  • the first direction is a counterclockwise direction and the second direction is a clockwise direction.
  • those skilled in the art can also understand the first direction and the second direction to the opposite direction.
  • the second rotation member 178 is formed with a third connection hole 178b connected to the substrate 174, and the connection pin 178c rotatably connects the second rotation member 178 to the substrate 174 through the third connection hole 178b.
  • the third connection hole 178b is an elliptical structure, and is formed with a second central axis 103 and a third central axis 104. In the up-down direction, the second central axis 103 is located on the lower side, the third central axis 104 is located on the upper side, and the second The central shaft 103 is located below the third central shaft 104.
  • the second rotating member 178 rotates around the connecting pin 178c within the range of the third connecting hole 178b, and can be positioned at the second central shaft 103 within the range of the third connecting hole 178b. And the third central axis 104 position. As shown in FIGS. 3 to 4, when the pedal assembly is located at the initial position, the second central shaft 103 of the second rotating member 178 is located on the connecting pin 178 c.
  • the second rotating member 178 is further formed with a receiving groove 178d that transmits the elastic force of the second elastic member 177, and the receiving groove 178d is formed with a circular slot hole for the second elastic member 177 to be displaced and a second mounting member The channel of the elastic member 177.
  • the second elastic member 177 is a double torsion spring structure.
  • the buckle 177a is installed in the receiving groove 178d.
  • the two ends are connected to the base plate 174 and are provided at least partially.
  • the cover 19 of the parking system 17 is covered.
  • the cover 19 is formed with a fourth connection hole corresponding to the first connection hole 173a, and the cover 19 is formed with a fifth connection hole corresponding to the third connection hole 178b.
  • 19 is fixedly connected to the base plate 174, and the second rotating member 178 and the third rotating member 179 are located between the cover plate 19 and the base plate 174 and can rotate. As shown in FIG.
  • the cover plate 19 is further formed with a first stopper portion 193 and a second stopper portion 194, wherein the first stopper portion 193 is located on the upper side and is biased toward the rear side, A second stopper 178e is formed on the rear side of the third connecting hole 178b of the second rotating member 178.
  • the first stopper 193 presses the third stopper 178e, the second elastic member 177 forms a pre-tightening force, so that the buckle 177a of the second elastic member 177 generates an upward thrust on the second rotating member 178, and in the initial state, the second rotating member 178
  • the second central shaft 103 is located on the connecting pin 178c.
  • a fourth stopper portion 178f is also formed at the lower position of the second rotating member 178. The second stopper portion 194 stops the fourth stopper portion 178f, and restricts the second rotating member 178 from rotating in the second direction.
  • the third rotating member 179 is fixedly connected or integrally formed with the second rotating member 178, and the third rotating member 179 is further formed with a fifth stopper 179a, the fifth stopper 179a and the first rotating member.
  • the pedal assembly When the user operates the riding lawn mower 100 and needs to brake, by stepping on the pedal 171, the pedal assembly is rotated around the first central axis 102 in the first direction, thereby driving the brake swing arm 181 to move, and driving the brake swing arm 181
  • the connecting rod is used to control the transmission 181 to realize braking.
  • the rotation range of the pedal arm 172 belongs to the first section.
  • the pedal assembly can be on the first elastic member.
  • the first elastic member 176 and the ratchet 175 of the first rotating member 173 constitute a lever structure, that is, the user steps on the pedal 171 so that When the pedal assembly is rotated in the first direction around the first central axis 102, at this time, the user steps on the pedal 171 to overcome the elastic force of the first elastic member 176, the first elastic member 176 is in a state of accumulating force, and the ratchet 175 is under the action of stepping There is a tendency of upward movement. When the user disengages the pedal 171, the ratchet wheel 175 moves downward under the effect of the elastic force of the first elastic member 176.
  • the pedal assembly surrounds the first central axis 102 according to Rotate in the first direction, and the pedal arm 172 rotates through the first section; the ratchet wheel 175 rotates and touches the pawl 178a to achieve meshing.
  • the ratchet 178a restricts the rotation of the ratchet 175, and the elastic force of the first elastic member 176
  • the limitation of the above-mentioned pawl 178a cannot be overcome, the pedal assembly is limited to the engaged position, the transmission 181 is continuously braked, and the riding lawn mower 100 is in a parking state and stays at a designated position.
  • the second elastic member 177 has a pre-tension
  • the buckle 177a of the second elastic member 177 generates an upward pushing force on the second rotating member 178.
  • the whole formed by the second rotating member 178 and the third rotating member 179 has an upward pushing force.
  • the central shaft 103 coincides with the connecting pin 178c, and the entirety formed by the second rotating member 178 and the third rotating member 179 can rotate around the second central shaft 103.
  • the buckle 177a since the buckle 177a is located on the rear side of the third connection hole 178b, when the buckle 177a gives the second rotating member 178 an upward thrust, the pawl 178a located on the front side of the third connection hole 178b has a downward direction. Trend of movement; from the upper side to the lower side, when the upper surface of the first tooth 175a of the ratchet 175 touches the lower surface of the pawl 178a, the upper surface of the first tooth 175a of the ratchet 175 faces the lower surface of the pawl 178a A thrust is generated which overcomes the elastic force of the second elastic member 177.
  • This thrust force overcomes the elastic force of the second elastic member 177, and due to the action of the buckle 177a, when the second tooth of the ratchet wheel 175 When the upper surface passes over the lower surface of the pawl 178a, the pawl 178a and the ratchet wheel 175 continue to be engaged.
  • the user can control the force required for braking according to the slope or speed of the current zone, so as to determine the turning angle that needs to be depressed, that is, at a small slope or low speed, the user can gently brake the pedal 171 to achieve braking or parking.
  • the pedal The rotation angle of the component is smaller, or the number of teeth of the ratchet wheel 175 over the pawl 178a is smaller.
  • the pedal assembly rotates at a larger angle, and the ratchet wheel 175 passes more teeth than the pawl 178a.
  • the teeth of the ratchet wheel 175 are engaged with the pawl 178a, and the user disengages the pedal 171.
  • the pedal assembly has a tendency to reset under the action of the first elastic member 176.
  • the ratchet wheel 175 is restricted from turning by the detent 178a. Because the pedal assembly has a tendency to reset under the action of the first elastic member 176, after the teeth of the ratchet wheel 175 engage with the pawl 178a, the lower surface of the teeth of the ratchet wheel 175 will be transmitted to A downward force on the upper surface of the pawl 178a presses the second rotating member 178 to move downward.
  • the elastic force of the first elastic member 176 is greater than that of the second elastic member 177, so the second rotating member 178 and the third rotate
  • the whole formed by the piece 179 is forced to move downward.
  • the third central shaft 104 of the second rotating member 178 moves to the connecting pin 178 c and coincides therewith.
  • the entirety formed by the second rotating member 178 and the third rotating member 179 can surround the third central shaft 104. Turn. It should be noted here that when the whole formed by the second rotating member 178 and the third rotating member 179 moves downward, the ratchet wheel 175 and the pawl 178a remain engaged and generate synchronous movement.
  • the receiving groove 178d of the second elastic member 177 gives a downward thrust to the buckle 177a of the second elastic member 177, and the second elastic member 177 is pushed to the second position during this time, at this time the second elastic member 177 has a downward pushing force.
  • the pawl 178a has a tendency to move upward.
  • the lower surface of the teeth of the ratchet 175 engaged with the pawl 178a continues to press the pawl 178a.
  • the ratchet 175 continues to move along the first Turning in the direction, the lower surface of the tooth currently engaging with the pawl 178a of the ratchet wheel 175 begins to detach from the upper surface of the pawl 178a, and because the pawl 178a has a tendency to move upward under the action of the second elastic member 177, the pawl 178a Under the action of the second elastic member 177, the ratchet wheel 175 is disengaged, and because the fourth stopper portion 178f formed by the second rotating member 178 is restricted by the second stopper portion 194 of the cover plate 19, the pawl 178a is along the third center During the process of rotating the shaft 104 away from the ratchet wheel 175 in the second direction, the shaft 104 will not move away from the ratchet wheel 175.
  • the ratchet wheel 175 is no longer restricted by the pawl 178a, and resetting is completed under the action of the first elastic member 176.
  • the first protrusion 173c provided on the first elastic member 176 pushes the third rotating member 179 to move in the second direction, and the second rotating member 178 and the first
  • the entire body formed by the three rotating members 179 rotates in the second direction and moves from the position of the third central shaft 104 to the position of the second central shaft 103.
  • the second central shaft 103 coincides with the connecting pin 178c, and the second elastic member 177 is also pushed. To the initial position, the entire system is reset.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Harvester Elements (AREA)

Abstract

一种骑乘式割草机（100），包括：座椅（12），设置为供用户乘坐；主机架（11），设置为承载座椅（12）；割草元件，设置为切割植被；行走组件（14），设置为使得骑乘式割草机（100）能行走；操作组件（15），设置为供用户操作以控制骑乘式割草机（100）行走和动力输出；骑乘式割草机（100）还包括：驻车系统（17），设置为使骑乘式割草机（100）在驻车状态和非驻车状态之间切换；连杆机构（18），连接至驻车系统（17）；变速箱（181），连接至连杆机构（18）；驻车系统（17）通过连杆机构（18）控制变速箱（181）实现制动。

Description

骑乘式割草机
本公开要求在2018年06月11日提交中国专利局、申请号为201810595487.0的中国专利申请的优先权，以上申请的全部内容通过引用结合在本公开中。
技术领域
本文涉及一种骑乘式电动机械，例如涉及一种骑乘式割草机。
背景技术
割草机作为一种花园类工具广泛的应用于修剪草坪、植被等领域中。其中，现有的骑乘式割草机作为一种可以驾驶的单人小型工程机械，从总体性质上来说其特殊的功能决定了其特殊的构造，现有的骑乘式割草机由于其特殊的使用环境、性能指标要求、人机关系匹配、安全性能要求等因素使得机体本身的结构较为复杂，尤其是其双踏板的刹车及和驻车结构大大占用了割草机的主机架空间，而且由于采用双踏板结构实现的刹车和驻车功能的分离，也从结构上增加了各个连接构件的复杂性，尤其是连杆结构和传动结构。对于骑乘式割草机而言，在满足其各项性能要求、功能要求以及安全性要求的前提下，实现其结构简化，尤其是实现其刹车功能和驻车功能的结合一直是一个急需解决的问题。
发明内容
本文提供了一种能够实现其刹车功能和驻车功能的结合的骑乘式割草机。
本文采用如下的技术方案：
一种骑乘式割草机，包括：座椅，设置为供用户乘坐；主机架，设置为承载座椅；割草元件，设置为切割植被；行走组件，设置为使得骑乘式割草机能行走；操作组件，设置为供用户操作以控制骑乘式割草机行走和动力输出；骑乘式割草机还包括：驻车系统，设置为使骑乘式割草机在驻车状态和非驻车状态之间切换；连杆机构，连接至驻车系统；变速箱，连接至连杆机构；驻车系统通过连杆机构控制变速箱实现制动；驻车系统被锁定时，骑乘式割草机处于驻车状态时，制动被锁定；驻车系统未被锁定或被解锁时，骑乘式割草机处于非驻车状态。
附图说明
图1是骑乘式割草机的立体图及一种电动工具系统的结构示意图；
图2是图1中的骑乘式割草机的刹车结构示意图；
图3是图1中的骑乘式割草机驻车系统的平面图；
图4是图3中的骑乘式割草机驻车系统未安装盖板的平面图；
图5是图4中的骑乘式割草机驻车系统的立体图；
图6是图4中的骑乘式割草机驻车系统进入驻车状态的平面图；
图7是图6中的骑乘式割草机驻车系统处于驻车状态的平面图；
图8是图7中的骑乘式割草机驻车系统解除驻车状态的平面图。
具体实施方式
图1所示的骑乘式电动机械可以为用于在室内或者户外进行工作的电动机械，在本实施例中，该骑乘式电动机械具体以骑乘式割草机100为例，骑乘式割草机100可以供用户骑坐在其上来操控以修剪草坪、植被等。
可以理解的，该骑乘式电动机械具体还可以为其它类型的工具，可以为骑乘式电动车辆，例如全地形车、高尔夫球车，还可以是通过输出一定形式的动力来实现其功能的骑乘式电动工具，例如骑乘式扫雪机、骑乘式农业机械等，当然，可以理解的，骑乘式电动机械还可以是用于其它用途的工具，例如骑乘式拖地车、骑乘式叉车等。
为了方便说明本文的技术方案，还定义了如图1所示的前侧、后侧、上侧和下侧。
如图1所示，骑乘式割草机100包括：主机架11、座椅12、动力输出组件13、行走组件14、操作组件15以及电源装置16。
主机架11设置为承载座椅12、动力输出组件13、行走组件14、操作组件15以及电源装置16，主机架11至少部分沿平行于前后方向的第一直线101方向延伸，上述组件及装置合理分布至主机架各部位。
座椅12设置为供用户乘坐，座椅12安装至主机架11上。座椅12相对主机架11能沿第一直线101方向滑动，从而使得座椅12能向前或者向后移动。座椅12具体包括：底部121和靠背122，底部121基本沿前后方向延伸，靠背122自底部121向上延伸而成。
动力输出组件13包括设置为输出动力以实现机械功能的输出件，例如在本实施例中，输出件具体可以为割草元件。动力输出组件13还连接至主机架11， 在本实施例中，动力输出组件13具体可以安装至主机架11的下侧。在一些实施方式中，动力输出组件13还包括：马达以及底盘。割草元件设置为实现割草功能，马达设置为驱动割草元件高速旋转，底盘形成有设置为至少容纳部分马达和部分割草元件的容纳空间。动力输出组件可以包括一个以上的割草元件，对应的，第一马达的数目可以与割草元件相对应。
行走组件14设置为使得骑乘式割草机100能够在草坪上行走。在一些实施方式中，行走组件14可以包括：第一行走轮141、第二行走轮142，在沿前后方向上，第一行走轮141设置在第二行走轮142的前侧。在本实施例中，第一行走轮141的数目为2，第二行走轮142的数目也为2。其中，在沿第一直线101方向上，动力输出组件20至少部分设置在第一行走轮141和第二行走轮142之间，且在沿第一直线101方向上，座椅12也至少部分设置在第一行走轮141和第二行走轮142之间，这样使得整机的重心G1在第一直线101方向上位于第一行走轮141和第二行走轮142之间，从而提高整机的平衡性能。在一些实施方式中，第一行走轮141可以为能以第一轴线102为轴转动的万向轮，第一行走轮141具有第一直径。在一些实施方式中，行走组件14还包括设置为驱动第二行走轮142以第二轴线为轴转动的第二马达，第二马达的数目也可以为2，这样，当这两个第二马达以不同的转速驱动对应的第二行走轮142转动时，这两个第二行走轮142之间产生速度差，从而使得骑乘式割草机100进行转向。第二行走轮142具有第二直径，第二行走轮142的第二直径大于第一行走轮141的第一直径。
在一些实施方式中，操作组件15设置为供用户操作以控制骑乘式割草机100的行走和动力输出。操作组件15可以包括：第一操作元件151和第二操作元件。第一操作元件151设置为供用户手动操作以启动马达，从而控制割草元件割草和控制骑乘式割草机100在草坪上行走，第二操作元件设置为供用户踩踏以控制割草机的运行状态。
电源装置16设置为给马达供电。在一些实施方式中，电源装置16包括多个第一电池包161，第一电池包161能够被用户从主机架11上拆卸下来。如图1所示的电动工具系统包括本文中的骑乘式割草机100和一个手持式电动工具100a。其中，设置为给骑乘式割草机100进行供电的电源装置16中的第一电池包161可以被拆卸下来以安装至手持式电动工具100a中，从而第一电池包161还能够给手持式电动工具100a提供能量来源，也即是说，本文中的电源装置16 中的第一电池包161不仅仅可以应用到骑乘式割草机100中，还可以应用到其它手持式电动工具100a中，从而提高了第一电池包161的适配性能，也提高了骑乘式割草机100适配第一电池包161的能力。在一些实施方式中，该手持式电动工具100a可以为打草机、修枝机、吹风机等的花园类工具，还可以是电钻、电锤等的扭力输出类工具，还可以是电圆锯、曲线锯、往复锯等的锯类工具，还可以是角磨、砂光机等的研磨类工具。当然，在其它实施例中，第一电池包161还可以被设置为能为手推式电动工具供电，例如手推式割草机、手推式扫雪机等。
如图2所示，在本实施方式中，第二操作元件连接至驻车系统17，驻车系统17连接至连杆机构18，连杆机构18连接至变速箱181，从而实现制动。从而使得骑乘式割草机100在刹车状态下能够实现驻车状态和非驻车状态切换。事实上，变速箱181还包括设置为制动的刹车片。可以理解的，骑乘式割草机100在运行过程中，由于路况或者工况等情况需要调整骑乘式割草机100的运行速度时，如在下坡过程中速度较快需要踩踏刹车减速，或者在上坡过程中需要做短暂停留，此时用户通过刹车减速至预定位置并最终停留在该位置，此时刹车系统需要持续限制骑乘式割草机100的运动，刹车系统进入驻车状态。在一些实施方式中，骑乘式割草机100的刹车过程构成的状态可分为非驻车状态和驻车状态两个状态，以上状态通过驻车系统17来切换。
以下就驻车系统17做具体介绍：
如图3至图5所示，在本实施方式中，驻车系统17包括：踏板171、踏板臂172、第一转动件173、基板174、棘轮175、第一弹性件176、第二弹性件177、第二转动件178、第三转动件179。其中，踏板171、踏板臂172、第一转动件173一起构成了踏板组件。在本实施方式中，踏板组件即为第二操作元件。踏板臂172包括两个运行区段，当踩踏踏板171使得踏板臂172位于第一区段时，骑乘式割草机100处于非驻车状态，驻车系统17通过连杆机构18控制变速箱181刹车；当踩踏踏板171使得踏板臂172位于第二区段时，骑乘式割草机100进入驻车状态，驻车系统17通过连杆机构18控制变速箱181刹车并锁定刹车状态。
为了方便说明本文的技术方案，定义了图5中箭头所示的方向分别为：左侧、右侧、上侧、下侧、前侧和后侧。踏板171固定连接至踏板臂172的一端，踏板臂172的另一端固定连接至第一转动件173，用户通过踩踏踏板171带动第 一转动件173围绕第一中心轴102转动，可以理解，踏板171、踏板臂172、第一转动件173构成的踏板组件可以一体成型，也可以通过焊接、铆接或螺栓连接等其他方式固定连接，此处不再赘述，只要能实现用户能够通过踩踏踏板171使得踏板组件能围绕第一中心轴102方向转动即可。在一些实施方式中，为满足装配要求，在第一转动件173上侧形成有能绕第一中心轴102并与基板174构成转动连接的第一连接孔173a，第一转动件173通过第一连接孔173a与基板174构成转动连接，第一转动件173前侧形成有连接踏板臂172的延伸部173b，第一转动件173的后侧形成有凸出第一转动件173自身延伸面的第一凸起部173c，并在靠近第一凸起部173c的位置形成有连接棘轮175的第二连接孔，棘轮175通过第二连接孔固定连接至第一转动件173，并能与第一转动件173围绕第一中心轴102方向构成同步转动。第一转动件173形成有设置为安装第一弹性件176的第一安装孔，基板174形成有设置为安装第一弹性件176的第二安装孔。其中，第一安装孔、第二安装孔和第一连接孔173a不共线。这样能够避免在第一弹性件176的弹性力下，第一转动件173无法围绕第一连接孔173a转动。
在一些实施方式中，在本实施例中，第一安装孔设置在第一转动件173的延伸部173b上并位于第一连接孔173a的左侧，第二安装孔设置在基板174上并位于第一连接孔173a的右侧，沿基板174的前后方向并同时位于基板174的上侧位置上形成有第二凸起部174b，第二安装孔设置在第二凸起部174b上。第一弹性件176安装至第一安装孔和第二安装孔并具备预紧力，当用户踩踏踏板171且踏板组件围绕第一中心轴102转动时，需要克服第一弹性件176的弹性力，当踏板臂172位于第一区段，骑乘式割草机100处于非驻车状态，当用户脱离踏板171时，踏板组件可以在第一弹性件176的作用下自动复位。
如图5、图6至图8所示，在本实施方式中，第二转动件178形成有棘爪178a，其与连接在第一转动件173上的棘轮175配合构成棘轮棘爪结构，用户踩踏踏板171，踏板组件可以围绕第一中心按照第一方向转动，棘轮175与棘爪178a啮合，当用户释放踏板171时，踏板组件在第一弹性件176的作用下可以沿第二方向复位，但由于棘爪178a的限制，踏板171组件无法回转，踏板组件被限位。在本实施例中，第一方向为逆时针方向，第二方向为顺时针方向，当然，本领域的技术人员也可以将上述第一方向、第二方向作相反的理解。
在一些实施方式中，第二转动件178形成有连接至基板174的第三连接孔 178b，连接销178c通过第三连接孔178b将第二转动件178转动连接至基板174。第三连接孔178b为椭圆结构，其形成有第二中心轴103和第三中心轴104，在上下方向上，第二中心轴103位于下侧，第三中心轴104位于上侧，且第二中心轴103位于第三中心轴104的下侧，第二转动件178在第三连接孔178b的范围内围绕连接销178c转动，并可以在第三连接孔178b所在范围内在第二中心轴103位置和第三中心轴104位置之间移动。如图3至图4所示，当踏板组件位于初始位置时，第二转动件178的第二中心轴103上位于连接销178c上。在一些实施方式中，第二转动件178还形成有传递第二弹性件177弹性力的容纳槽178d，容纳槽178d形成有可供第二弹性件177移位的圆形槽孔和安装第二弹性件177的通道，在一些实施方式中，第二弹性件177为双扭簧结构，其扣环177a安装至上述容纳槽178d中，其两个端头分别连接至基板174和设置为至少部分盖合驻车系统17的盖板19，盖板19与第一连接孔173a对应形成有第四连接孔，盖板19与第三连接孔178b对应形成有第五连接孔，通过螺钉将盖板19固定连接至基板174上，第二转动件178和第三转动件179位于盖板19和基板174之间并能实现转动。如图3所示，在本实施方式中，盖板19还形成有第一止挡部193和第二止挡部194，其中，第一止挡部193位于上侧且偏向后侧的位置，第二转动件178位于第三连接孔178b的后侧形成有第三止挡部178e，将第二弹性件177安装至驻车系统17时，第一止挡部193抵压第三止挡部178e，第二弹性件177形成一个预紧力，使得第二弹性件177的扣环177a对第二转动件178产生一个朝向上侧的推力，该推力使得在初始状态时，第二转动件178的第二中心轴103位于连接销178c上。第二转动件178下侧位置还形成有第四止挡部178f，第二止挡部194止挡第四止挡部178f，限制第二转动件178沿第二方向的转动。
在一些实施方式中，第三转动件179与第二转动件178固定连接或一体成型，第三转动件179还形成有第五止挡部179a，第五止挡部179a与上述第一转动件173的第一凸起部173c接触时，传递相互作用力。
当用户操作骑乘式割草机100运行中，需要刹车时，通过踩踏踏板171使得踏板组件围绕第一中心轴102按照第一方向转动，从而带动刹车摆臂181运动，通过刹车摆臂181带动连杆来控制变速箱181实现刹车。当踏板组件上的棘轮175转动直触碰至棘爪178a但未实现啮合之前，踏板臂172的转动范围均属于第一区段，当用户脱离踏板171时，踏板组件均可在第一弹性件176的作 用下自动复位，骑乘式割草机100处于非驻车状态；这里需要说明的是，第一转动件173的第一弹性件176和棘轮175构成杠杆结构，即用户踩踏踏板171使得踏板组件按照围绕第一中心轴102按照第一方向转动时，此时用户踩踏踏板171转动克服了第一弹性件176的弹性力，第一弹性件176处于蓄力状态，棘轮175在踩踏作用下具有向上运动的趋势，当用户脱离踏板171时棘轮175在第一弹性件176弹性力的作用下向下运动。
当用户需要继续刹车并实现骑乘式割草机100通过驻车停留在指定位置时，需要继续踩踏踏板171使得踏板臂172转动至第二区段，此时踏板组件围绕第一中心轴102按照第一方向转动，且踏板臂172的转过第一区段；棘轮175转动触碰至棘爪178a且实现啮合，此时棘爪178a限制了棘轮175的回转，第一弹性件176的弹性力无法克服上述棘爪178a的限制，踏板组件被限制在啮合位置，变速箱181持续制动，骑乘式割草机100处于驻车状态并停留在指定位置。
驻车系统17处于驻车阶段时，在一些实施方式中，由于第二转动件178在装配时，第一止挡部193抵压第三止挡部178e，第二弹性件177具有一个预紧力，第二弹性件177的扣环177a对第二转动件178产生一个朝向上侧的推力，此时第二转动件178和第三转动件179形成的整体由于存在一个向上的推力，第二中心轴103与连接销178c重合，第二转动件178和第三转动件179形成的整体可以围绕第二中心轴103转动。根据杠杆原理，由于扣环177a位于第三连接孔178b的后侧，当扣环177a给第二转动件178一个向上的推力时，位于第三连接孔178b前侧的棘爪178a存在一个向下运动的趋势；从上侧往下侧的方向上，棘轮175的第一齿175a上表面触碰至棘爪178a的下表面时，棘轮175第一齿175a的上表面对棘爪178a的下表面产生一个推力，该推力克服第二弹性件177的弹力。当棘轮175的第一齿175a的上表面越过棘爪178a的下表面时，棘爪178a在扣环177a的作用下由于杠杆作用与棘轮175啮合；棘轮175继续转动，在从上侧往下侧的方向上，棘轮175第二齿的上表面对棘爪178a的下表面产生一个推力，该推力克服第二弹性件177的弹力，并由于扣环177a的作用，当棘轮175的第二齿的上表面越过棘爪178a的下表面时，棘爪178a与棘轮175继续保持啮合。
用户可以根据当前区段的坡度或速度控制刹车所需的力，从而判断需要踩下的转动角度，即小坡度或低速状态下，用户轻踩踏板171即可实现刹车或驻车，此时踏板组件转动的角度较小，或者棘轮175越过棘爪178a的齿数较少。 当遇到大坡度或高速度状态下，用户使用较大的力踩踏踏板171实现刹车并驻车，此时踏板组件转动的角度较大，棘轮175越过棘爪178a的齿数较多。当用户根据现场情况踩踏踏板171实现刹车并驻车时，此时棘轮175的齿与棘爪178a啮合，用户脱离踏板171，踏板组件在第一弹性件176的作用下具有复位的趋势，但由于棘爪178a的阻碍，棘轮175被限制无法转动。又由于踏板组件在第一弹性件176的作用下具有复位的趋势，当棘轮175的齿与棘爪178a啮合后，从上侧往下侧的方向上，棘轮175的齿的下表面会传递给棘爪178a的上表面一个向下的力，压迫第二转动件178向下运动，第一弹性件176的弹性力大于第二弹性件177的弹性力，故第二转动件178和第三转动件179形成的整体被压迫向下运动。如图7所示，此时第二转动件178的第三中心轴104移动至连接销178c并与之重合，第二转动件178和第三转动件179形成的整体可以围绕第三中心轴104转动。这里需要说明的是，当第二转动件178和第三转动件179形成的整体向下运动时，棘轮175和棘爪178a保持啮合并产生同步运动。
在第二转动件178和第三转动件179形成的整体向下运动的同时，第二弹性件177的容纳槽178d给第二弹性件177的扣环177a一个向下的推力，第二弹性件177在此期间被推向第二位置，此时第二弹性件177具有向下的推力。根据杠杆原理，此时棘爪178a具有向上运动的趋势，此时与棘爪178a啮合的棘轮175的齿的下表面持续压迫棘爪178a，当用户再次踩踏踏板171时，棘轮175继续沿第一方向转动，棘轮175当前与棘爪178a啮合的齿的下表面开始脱离棘爪178a的上表面，又由于棘爪178a此时在第二弹性件177的作用下具有向上运动的趋势，棘爪178a在第二弹性件177的作用下脱离棘轮175，又由于第二转动件178形成的第四止挡部178f受到盖板19的第二止挡部194的限制，棘爪178a在沿第三中心轴104按照第二方向转动脱离棘轮175过程中，不会远离棘轮175。此时棘轮175不再受到棘爪178a的限制，在第一弹性件176的作用下完成复位。第一弹性件176在沿第一中心轴102按照第二方向转动复位过程中，其上设置的第一凸起部173c推动第三转动件179按照第二方向运动，第二转动件178和第三转动件179形成的整体沿第二方向转动并由第三中心轴104位置移动至第二中心轴103位置，此时第二中心轴103与连接销178c重合，第二弹性件177也被推动至初始位置，整个系统复位。

Claims (10)

  1. 一种骑乘式割草机，包括：
    座椅，设置为供用户乘坐；
    主机架，设置为承载所述座椅；
    割草元件，设置为切割植被；
    行走组件，设置为使得所述骑乘式割草机能行走；
    操作组件，设置为供用户操作以控制所述骑乘式割草机行走和动力输出；
    所述骑乘式割草机还包括：
    驻车系统，设置为使所述骑乘式割草机在驻车状态和非驻车状态之间切换；
    连杆机构，连接至所述驻车系统；
    变速箱，连接至所述连杆机构；
    所述驻车系统通过所述连杆机构控制所述变速箱实现制动；
    所述驻车系统被锁定时，所述骑乘式割草机处于所述驻车状态；所述驻车系统未被锁定或被解锁时，所述骑乘式割草机处于所述非驻车状态。
  2. 根据权利要求1所述的骑乘式割草机，其中，所述驻车系统包括：
    踏板组件，设置为供用户操作以实现所述驻车状态与所述非驻车状态的切换；
    基板，设置为安装所述踏板组件；
    盖板，设置为配合所述基板连接所述踏板组件；
    棘轮，连接至所述踏板组件；
    第一弹性件，连接所述踏板组件和所述基板之间。
  3. 根据权利要求2所述的骑乘式割草机，其中，
    所述踏板组件包括：
    踏板，设置为供用户踩踏；
    第一转动件，连接所述踏板组件并能围绕一中心轴线同步转动；
    踏板臂，一端连接至所述踏板，另一端连接至所述第一转动件。
  4. 根据权利要求3所述的骑乘式割草机，其中，
    用户脱离所述踏板时，所述第一转动件在第一弹性件的作用下沿第二方向复位。
  5. 根据权利要求2所述的骑乘式割草机，其中，
    所述驻车系统还包括：
    第二转动件，连接至所述基板；
    第二弹性件，连接所述基板和所述盖板之间并形成有扣环，所述扣环抵触所述第二转动件。
  6. 根据权利要求5所述的骑乘式割草机，其中，
    所述第二转动件形成有容纳槽，所述第二弹性件的扣环安装至所述容纳槽内并能在第一位置和第二位置之间切换。
  7. 根据权利要求5所述的骑乘式割草机，其中，
    所述第一弹性件的弹性力大于所述第二弹性件的弹性力。
  8. 根据权利要求5所述的骑乘式割草机，其中，
    所述第二转动件形成或连接有棘爪，并能限制所述棘轮的转动方向。
  9. 根据权利要求5所述的骑乘式割草机，其中，
    所述盖板形成有：
    第一止挡部，抵触所述第二转动件；
    第二止挡部，设置为限制所述第二转动件的旋转角度。
  10. 根据权利要求5所述的骑乘式割草机，其中，
    所述驻车系统还包括第三转动件，所述第三转动件与所述第二转动件固定连接或一体成型；
    所述第三转动件与所述基板的第一凸起部配合实现所述第二弹性件由第二位置切换至第一位置。
PCT/CN2019/090721 2018-06-11 2019-06-11 骑乘式割草机 WO2019238043A1 (zh)

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