WO2018201525A1 - 后走式自推进机器 - Google Patents

后走式自推进机器 Download PDF

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Publication number
WO2018201525A1
WO2018201525A1 PCT/CN2017/084996 CN2017084996W WO2018201525A1 WO 2018201525 A1 WO2018201525 A1 WO 2018201525A1 CN 2017084996 W CN2017084996 W CN 2017084996W WO 2018201525 A1 WO2018201525 A1 WO 2018201525A1
Authority
WO
WIPO (PCT)
Prior art keywords
handle
propelled machine
grip portion
self
machine according
Prior art date
Application number
PCT/CN2017/084996
Other languages
English (en)
French (fr)
Inventor
严语
山冈敏成
聂方杰
许海深
刘扬子
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
Priority claimed from CN201710301318.7A external-priority patent/CN108781713B/zh
Priority claimed from CN201710301230.5A external-priority patent/CN108790946B/zh
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 EP17908385.2A priority Critical patent/EP3533312B1/en
Priority to AU2017412539A priority patent/AU2017412539B2/en
Publication of WO2018201525A1 publication Critical patent/WO2018201525A1/zh
Priority to US16/447,458 priority patent/US10729066B2/en
Priority to US16/933,036 priority patent/US20200344947A1/en

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Classifications

    • 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
    • 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
    • A01D34/67—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 hand-guided by a walking operator
    • A01D34/68—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 hand-guided by a walking operator with motor driven cutters or wheels
    • A01D34/69—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 hand-guided by a walking operator with motor driven cutters or wheels with motor driven wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B60L15/2036—Electric differentials, e.g. for supporting steering vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B60L15/30—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed with means to change over to human control
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H5/00—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice
    • E01H5/04—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material
    • E01H5/08—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material dislodging essentially by driven elements
    • E01H5/09—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material dislodging essentially by driven elements the elements being rotary or moving along a closed circular path, e.g. rotary cutter, digging wheels
    • E01H5/098—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material dislodging essentially by driven elements the elements being rotary or moving along a closed circular path, e.g. rotary cutter, digging wheels about horizontal or substantially horizontal axises perpendicular or substantially perpendicular to the direction of clearing
    • 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
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02—Selector apparatus
    • 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
    • A01D34/67—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 hand-guided by a walking operator
    • A01D34/68—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 hand-guided by a walking operator with motor driven cutters or wheels
    • A01D2034/6843—Control levers on the handle of the mower
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D2101/00—Lawn-mowers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/40—Working vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/421—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2250/00—Driver interactions
    • B60L2250/24—Driver interactions by lever actuation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

Definitions

  • the invention relates to a rear walking self-propelled machine.
  • the rear-moving self-propelled machine includes a drive motor and wheels.
  • the drive motor drives the wheels to rotate so that the rear-moving self-propelled machine travels on the ground to achieve self-propulsion.
  • the rear-moving self-propelled machine includes a handle. The handle is placed at the rear of the rear-moving self-propelled machine, and the rear-moving self-propelled machine moves forward. The user is located at the rear of the rear-moving self-propelled machine to hold the handle to operate and manipulate the rear self-propelled machine.
  • Lawn mowers and snow plows with self-propelled functions are common rear-moving self-propelled machines.
  • the rear-moving self-propelled machine is provided with a speed control member and a start trigger.
  • the speed governing member is used to control the traveling speed of the rear walking self-propelled machine.
  • the trigger is activated to activate the travel function of the rear self-propelled machine.
  • the speed control member of the existing rear-running self-propelled machine is not convenient for the user to adjust the speed while holding the handle.
  • a rear-moving self-propelled machine comprising: a chassis; a wheel for supporting the chassis and rotating relative to the chassis; driving the motor to drive the wheel to rotate; a handle for the user to push the self-propelled machine; the handle is formed for the left hand of the user Two grips held by the right hand; the speed governing member moves relative to the handle to adjust the rotational speed of the driving motor; the speed governing member can be operated when the user holds the grip with one hand; the governing member is disposed in the two grips Between the holding portions; the electromechanical conversion device converts the positional change of the speed regulating member relative to the handle into an electrical signal for adjusting the rotational speed of the driving motor; and the speed regulating member moves between the first position and the second position with respect to the handle; When the speed control member is in the first position, the speed of the driving motor is greater than the speed of the driving motor when the speed regulating member is in the second position.
  • the electromechanical conversion device is disposed in the handle.
  • the electromechanical conversion device is located between the two grips.
  • the speed governing member is rotatably coupled to the handle about a central axis.
  • the speed governing member is constructed as an annular part; the speed governing member surrounds the handle.
  • the handle is symmetrical about a plane of symmetry perpendicular to the central axis; the grip includes a first grip extending along the central axis; in the radial direction of the central axis, the maximum size of the governor is greater than the first grip The largest size.
  • the speed regulating member is provided with a plurality of grooves arranged in the circumferential direction along the central axis.
  • the electromechanical conversion device is a sliding varistor;
  • the sliding varistor comprises a body and a slider sliding relative to the body;
  • the sliding varistor outputs different electrical signals when the slider is at different positions relative to the body;
  • the speed governing member rotates relative to the handle to drive the slider Sliding relative to the body.
  • the electromechanical conversion device is disposed in the handle; the electromechanical conversion device corresponds to the position of the speed control member; and the speed control member rotates relative to the handle about the central axis to slide the slider relative to the body in a direction parallel to the central axis.
  • the handle is formed with an elongated hole extending in a direction parallel to the central axis; the elongated hole guiding slider slides in a direction parallel to the central axis with respect to the handle.
  • the speed regulating member is formed with a chute inclined to the central axis; the chute cooperates with the slider, and the chute slides relative to the body in a direction parallel to the central axis when the chute moves relative to the slider.
  • the grip portion includes a first grip portion extending along the central axis; the handle is formed with an elongated hole extending in a direction parallel to the central axis; the elongated hole guides the slider relative to the handle in a direction parallel to the central axis slide.
  • the rear-moving self-propelled machine further comprises: a trigger for starting operation of the driving motor by the user; the trigger is arranged on the grip portion; the triggering device and the speed regulating member can be operated when the user holds the grip portion with one hand; the handle is formed There is a through hole; the trigger is protruded through the through hole to protrude from the handle; the through hole and the long hole are located on the same side of the handle.
  • the electromechanical conversion device is a Hall sensor; the Hall sensor includes: a Hall element fixed to the handle; a magnetic member fixed to the speed control member; and the Hall sensor output is different when the magnetic member is at different positions relative to the Hall element electric signal.
  • the rear-moving self-propelled machine further includes: a trigger is activated for the user to start the driving motor; and the trigger device and the speed regulating member can be operated when the user holds the grip portion with one hand.
  • the activation trigger is disposed on the grip portion; the activation trigger includes an operation portion protruding from the handle; and the operation portion can be operated by the hand gripping the grip portion of the user to start the drive motor when the grip portion is gripped.
  • the operating portion protrudes rearward from the handle; the operating portion can be gripped by the user's hand holding the grip portion The grip moves forward to move the drive motor.
  • the grip portion includes: a first grip portion extending along a straight line; a second grip portion extending along a straight line; and a connecting portion connecting the first grip portion and the second grip portion; the first grip portion is disposed
  • the first grip portion, the second grip portion and the connecting portion form an L shape; the start trigger is disposed at the first grip portion and the connecting portion.
  • the trigger is turned to connect to the handle.
  • the rear-moving self-propelled machine further comprises: a working motor; a working attachment, a function of the self-propelled machine driven by the working motor; a working trigger for starting the working motor; and a working trigger including an active part for the user to operate
  • the movable portion is disposed in front of the handle and can be moved backward by the user to start the working motor; the grip portion, the movable portion and the operating portion can be held by the user with one hand.
  • the rear-moving self-propelled machine further includes: a start switch, which can be activated by the trigger to start the drive motor, and the start switch and the drive motor form an electrical connection; the start switch is disposed in the handle.
  • the rear-drive self-propelled machine includes two start triggers; the two grips are symmetric about a plane of symmetry; the two start triggers are symmetric about a plane of symmetry.
  • the maximum distance from any point on the trigger to the handle is less than or equal to 20 mm.
  • the rear-moving self-propelling machine comprises: a working motor; a mowing blade, which is driven by a working motor to realize a mowing function of the rear-moving self-propelling machine; and the chassis is formed with a cutting cavity for accommodating the mowing blade.
  • the rear-moving self-propelled machine comprises: a working motor; a snow-sweeping paddle, which is driven by a working motor to realize a snow-sweeping function of the rear-moving self-propelled machine; a snow-spreading device that guides the movement of the snow.
  • the rear walking type self-propelling machine disclosed by the invention can realize the control of the speed regulating member while holding the left hand or the right hand, and the adjustment is convenient and quick.
  • Figure 1 is a schematic view of a rear walking self-propelled machine
  • Figure 2 is a schematic view of another perspective of the rear walking self-propelled machine of Figure 1;
  • Figure 3 is an exploded view of a portion of the structure of the rear walking self-propelled machine of Figure 1;
  • Figure 4 is a schematic view of the control assembly of the rear walking self-propelled machine of Figure 1;
  • FIG. 5 is a schematic view showing the internal structure of the switch box of the control unit of Figure 4.
  • Figure 6 is a schematic view showing the internal structure of the handle of the control assembly of Figure 4.
  • Figure 7 is an exploded view of a portion of the structure of the control assembly of Figure 4.
  • Figure 8 is a schematic view of another perspective of the control assembly of Figure 4.
  • Figure 9 is a schematic view of the electromechanical conversion device and the speed regulating member of the control assembly of Figure 4.
  • Figure 10 is an exploded view of the speed regulating member of Figure 9;
  • Figure 11 is another perspective view of the electromechanical conversion device and the speed regulating member of Figure 9;
  • Figure 12 is a schematic view of an electromechanical conversion device, a speed governing member and a handle;
  • Figure 13 is a schematic view of another electromechanical conversion device, a speed governing member and a handle;
  • Figure 14 is a schematic illustration of another rear walk self-propelled machine.
  • the rearward self-propelled machine 100 includes a chassis 10, wheels 20, a drive motor 30, and a control assembly 40.
  • the chassis 10 serves as a main support structure for the rear-moving self-propelled machine 100, and the components are assembled into one body.
  • the wheel 20 is used to support the chassis 10.
  • the wheel 20 rotates relative to the chassis 10 to move the chassis 10 on the ground.
  • the drive motor 30 is used to drive the wheels 20 to rotate.
  • the drive motor 30 is mounted to the chassis 10.
  • the rear-drive self-propelled machine 100 also includes a transmission mechanism 31.
  • the transmission mechanism 31 connects the drive motor 30 and the wheels 20.
  • Control assembly 40 is used to control rearward self-propelled machine 100.
  • Control assembly 40 includes a handle 41.
  • the user can push the rear-travel self-propelled machine 100 by pushing the handle 41.
  • the handle 41 is coupled to the chassis 10.
  • the rear-drive self-propelled machine 100 further includes a link 50 that connects the handle 41 and the chassis 10.
  • the handle 41 and the link 50 can also be integrally formed. That is, the handle 41 and the link 50 are used as one part.
  • the rearward self-propelled machine 100 includes a work attachment 60 and a work motor 70.
  • the working motor 70 drives the work attachment 60 to perform the function of the rear self-propelled machine 100.
  • the working motor 70 may be an electric power-driven electric machine or an internal combustion engine powered by fuel combustion.
  • the chassis 10 carries a working motor 70.
  • the working motor 70 is a motor.
  • the rear walk self-propelled machine 100 also includes a battery pack 80.
  • the battery pack 80 supplies power to the working motor 70.
  • the battery pack 80 supplies power to the drive motor 30.
  • the working motor may not be provided, and the working accessory is driven by the driving motor.
  • the rear walking self-propelled machine 100 shown in FIGS. 1 and 2 is cut.
  • Grass machine The mower includes a mowing blade.
  • the mowing blade functions as a work attachment 60 for mowing.
  • the chassis 10 is formed with a cutting chamber 11.
  • the cutting chamber 11 houses a mowing blade.
  • the mowing blade rotates within the cutting chamber 11.
  • the control assembly 40 includes a handle 41, a speed governing member 42, an electromechanical conversion device 43, a trigger trigger 44a, 44b, a start switch 45a, 45b, a work trigger 46, a work switch 47, a safety key 48, and Switch box 49.
  • the handle 41 forms a grip portion 411a for the user's left hand grip and a grip portion 411b for the right hand grip.
  • the grip portion 411a and the grip portion 411b are symmetrical about a plane of symmetry P1.
  • the handle 41 is symmetrical about the plane of symmetry P1.
  • the handle 41 is made of plastic.
  • the handle 41 includes a first handle housing 412 and a second handle housing 413.
  • the first handle housing 412 and the second handle housing 413 are formed with a cavity.
  • the speed governing member 42 is for user operation to adjust the rotational speed of the drive motor 30.
  • the speed governing member 42 moves relative to the handle 41 to adjust the rotational speed of the drive motor 30.
  • the speed governing member 42 is disposed at a middle portion of the handle 41.
  • the speed governing member 42 is symmetrical about the plane of symmetry P1.
  • the speed governing member 42 is disposed between the two grip portions 411a, 411b.
  • the left hand can operate the speed control member 42 while the user holds the grip portion 411a with his left hand. Specifically, the user can grasp the holding portion 411a with the left hand and operate the speed adjusting member 42 with the thumb of the left hand.
  • the speed governing member 42 is rotatably coupled to the handle 41.
  • the speed governing member 42 is rotated about the central axis 101 with respect to the handle 41.
  • the central axis 101 is perpendicular to the plane of symmetry P1.
  • the speed governing member 42 is constructed as a ring-shaped member.
  • the speed governing member 42 surrounds the handle 41.
  • the speed governing member 42 is provided with a plurality of grooves 423 arranged in the circumferential direction of the center axis 101.
  • the groove 423 extends in the direction of the central axis 101.
  • the speed governing member 42 includes a first governor housing 421 and a second governor housing 422.
  • the handle 41 is disposed between the first governor housing 421 and the second governor housing 422.
  • the electromechanical conversion device 43 converts the positional change of the speed governing member 42 with respect to the handle 41 into an electrical signal for adjusting the rotational speed of the drive motor 30.
  • the electromechanical conversion device 43 is disposed in the handle 41. That is, the electromechanical conversion device 43 is disposed in the cavity formed by the handle 41.
  • the triggers 44a, 44b are activated for the user to operate the drive motor 30.
  • the user can operate the trigger 44a and the speed governing member 42 when the grip portion 411a is held by the left hand.
  • the user can operate the trigger 44b and the speed governing member 42 when the grip portion 411b is held by the right hand. That is, the user can control both the start and speed functions with one hand. Moreover, the control of both the start and the speed adjustment functions can be realized regardless of the grip portion 411a or the grip portion 411b.
  • the start switch 45a can be controlled by the start trigger 44a for actuating the drive motor 30.
  • the start switch 45a is electrically connected to the drive motor 30.
  • the start switch 45b can be controlled by the start trigger 44b for starting the drive motor 30.
  • the start switch 45b is electrically connected to the drive motor 30.
  • only one start switch can be provided, and both start triggers are used to trigger the start switch to start the drive motor.
  • the two triggers form a part or constitute a synchronized movement. When the user operates another start trigger motion, the other triggers the trigger to move synchronously.
  • the work trigger 46 is used for the user to operate the start working motor 70.
  • the work trigger 46 includes movable portions 461a, 461b for the user to operate.
  • the movable portions 461a, 461b approach the handle 41 to activate the work motor 70.
  • the working trigger 46 rotates about the first axis 102 relative to the handle 41.
  • the first axis 102 is parallel to the central axis 101.
  • the handle 41 is rotated relative to the chassis 10 about the second axis 103 to effect the folding storage function of the handle 41.
  • the second axis 103 is parallel to the central axis 101.
  • the wheel 20 rotates about the third axis 104 relative to the chassis 10.
  • the third axis 104 is parallel to the central axis 101.
  • the link 50 includes a first link 51 and a second link 52.
  • the first link 51 and the second link 52 constitute a sliding connection.
  • the first link 51 slides in the direction of the first straight line 105 with respect to the second link 52.
  • the first line 105 is perpendicular to the central axis 101.
  • the rear-drive self-propelled machine 100 includes a battery case 81 for mounting or housing the battery pack 80.
  • the battery pack 80 is slidably coupled to the battery case 81 in the direction of the second straight line 106.
  • the second line 106 is perpendicular to the central axis 101.
  • the axis of rotation of the working attachment 60 is parallel or perpendicular to the central axis 101.
  • the work switch 47 can be controlled by the work trigger 46 for starting the work motor 70.
  • the work switch 47 is electrically connected to the work motor 70.
  • the safety key 48 prevents the work trigger 46 from being accidentally touched causing the work motor 70 to start.
  • the user needs to press the security key 48 and then rotate the work trigger 46 to activate the work motor 70.
  • the switch box 49 is for housing the work switch 47.
  • the working trigger 46 is rotatably coupled to the switch box 49 about the first axis 102.
  • the switch box 49 includes a switch box cover 491 and a switch box holder 492.
  • the switch box 49 is fixed to the handle 41.
  • the switch box 49 secures the link 50.
  • the switch cover 491 and the switch housing 492 grip the handle 41 and the link 50 from both sides.
  • the rear-drive self-propelled machine 100 also includes a circuit board assembly 90.
  • the circuit board assembly 90 controls the rotational speed of the drive motor 30 in accordance with the electrical signal of the electromechanical conversion device 43.
  • the circuit board assembly 90 electrically connects the drive motor 30 And an electromechanical conversion device 43.
  • the circuit board assembly 90 is disposed on the chassis 10.
  • the circuit board assembly 90 can also be disposed in the switch box 49 or the handle 41.
  • the speed governing member 42 of Figure 4 is in the first position.
  • the speed governing member 42 of Fig. 5 is in the second position.
  • the speed governing member 42 is rotatable relative to the handle 41 from the first position to the second position.
  • the circuit board assembly 90 controls the rotational speed of the driving motor 30 to be greater than the rotational speed of the driving motor 30 when the speed regulating member 42 is in the second position.
  • the electromechanical conversion device 43 outputs different electrical signals when the speed governing member 42 is in the first position and the second position.
  • the circuit board assembly 90 controls the drive motor 30 to rotate at different speeds based on different electrical signals from the electromechanical conversion device 43.
  • the grip portion 411a includes a first grip portion 416a, a second grip portion 417a, and a connecting portion 418a.
  • the grip portion 411b includes a first grip portion 416b, a second grip portion 417b, and a connecting portion 418b.
  • the first grip portion 416a extends in a straight line. Specifically, the first grip portion 416a extends along the central axis 101.
  • the first grip portion 416b extends along the central axis 101.
  • the second grip portion 417a extends in a straight line.
  • the second grip portion 417b extends in a straight line.
  • the extending directions of the second grip portion 417a and the second grip portion 417b are obliquely intersected with the central axis 101.
  • the first grip portion 416a and the first grip portion 416b are adjacent to the speed regulating member 42.
  • the speed governing member 42 is located between the first grip portion 416a and the first grip portion 416b.
  • the first grip portion 416a is disposed between the speed regulating member 42 and the connecting portion 418a.
  • the first grip portion 416b is disposed between the speed regulating member 42 and the connecting portion 418b.
  • the first grip portion 416a, the second grip portion 417a, and the connecting portion 418a constitute an L shape.
  • the first grip portion 416b, the second grip portion 417b, and the connecting portion 418b constitute an L shape.
  • the maximum size of the speed regulating member 42 is greater than the maximum size of the first grip portion 416a, and the maximum size of the speed regulating member 42 is greater than the maximum size of the first grip portion 416b.
  • the maximum size of the first grip portion 416a is the same as the maximum size of the first grip portion 416b. It is convenient for the user to manipulate the speed regulating member 42 with the thumb while holding the first grip portions 416a, 416b.
  • the maximum size of the first grip portion 416a is the same as the maximum size of the first grip portion 416b.
  • the first grip portion 416a and the first grip portion 416b are symmetrical about the plane of symmetry P1.
  • the start trigger 44a is provided to the grip portion 411a.
  • the start trigger 44b is provided to the grip portion 411b.
  • the triggers 44a, 44b are rotatably coupled to the handle 41.
  • the activation trigger 44a includes an operating portion 441a that protrudes from the handle 41.
  • the activation trigger 44b includes an operation portion 441b that protrudes from the handle 41.
  • the operation portion 441a can be gripped by the hand of the user holding the grip portion 411a
  • the portion 411a operates to activate the drive motor 30.
  • the operation portion 441b can be operated by the user's hand holding the grip portion 411b while holding the grip portion 411b to activate the drive motor 30.
  • the operation portions 441a and 441b protrude rearward from the handle 41.
  • the operation portion 441a can be moved forward by the hand holding the grip portion 411a by the user while holding the grip portion 411a to start the drive motor 30.
  • the operation portion 441b can be moved forward by the hand holding the grip portion 411b by the user while holding the grip portion 411b to start the drive motor 30.
  • the triggers 44a, 44b are activated, the drive motor 30 is driven to move forward from the propulsion machine 100.
  • pushing the handle 41 forward can activate the drive motor 30.
  • the user needs to manually pull the rear self-propelled machine 100 to move backward, it is necessary to release the start triggers 44a, 44b to close the drive motor 30.
  • the user can relax the grip of the handle 41 and pull the handle 41 backward, at which time the triggers 44a, 44b can be released without being subjected to the force from the hand.
  • the triggers 44a, 44b are prevented from being disposed in front of the handle 41, when the handle 41 is pulled backward, the triggers 44a, 44b are still subjected to the force from the hand, causing the triggers 44a, 44b to be in an open state, that is, the drive motor 30 is not closed by the user. Pull the machine back.
  • the maximum distance from any point on the triggers 44a, 44b to the handle 41 is less than or equal to 20 mm. It is convenient for the user to release the trigger triggers 44a, 44b when the grip of the grip portions 411a, 411b is released to pull the handle 41 rearward.
  • the activation trigger 44a is disposed on the first grip portion 416a and the connecting portion 418a.
  • the activation trigger 44b is disposed on the first grip portion 416b and the connecting portion 418b. Specifically, one end of the operation portion 441a is provided in the first grip portion 416a, and the other end of the operation portion 441a is provided in the connection portion 418a. One end of the operation portion 441b is provided in the first grip portion 416b, and the other end of the operation portion 441b is provided in the connection portion 418b.
  • the trigger trigger 44a can be controlled by the palm.
  • the trigger 14a is activated while the user holds the first grip 416a.
  • the rear walking self-propelled machine 100 is in a self-propelled state.
  • the operation is convenient and fast.
  • the trigger trigger 44b can be controlled by the palm.
  • the activation triggers 44a, 44b are not located in the second grips 417a, 417b.
  • the triggers 44a, 44b are activated without triggering the triggers 44a, 44b by the user holding the second grips 417a, 417b.
  • the rear self-propelled machine 100 is in a non-self-propelled state.
  • the second grip portions 417a, 417b can be held for operation.
  • the trigger triggers 44a, 44b can be controlled by the thumb to cause the rearward self-propelled machine 100 to enter the self-propelled state.
  • the work trigger 46 includes movable portions 461a, 461b for the user's left and right hand operations, respectively. Activities section 461a, 461b are provided in front of the handle 41. The user operates the movable portions 461a, 461b to move rearward to activate the work motor 70. The grip portion 411a, the movable portion 461a, and the operation portion 441a can be held by one hand by the user. Similarly, the grip portion 411b, the movable portion 461b, and the operation portion 441b can be held by one hand by the user. The movable portions 461a, 461b extend in a straight line. The work trigger also includes an intermediate portion 462 that connects the two movable portions 461a, 461b.
  • the intermediate portion 462 is offset from a straight line extending from the movable portions 461a, 461b.
  • the handle 41 is formed with a receiving groove capable of accommodating the movable portions 461a, 461b.
  • the movable portions 461a, 461b are located in the accommodating grooves, so that the user can hold the grip portions 411a, 411b.
  • the trigger 14a is activated to trigger the start switch 45a.
  • the trigger 14b is activated to trigger the start switch 45b.
  • the handle 41 is formed with through holes 414a, 414b.
  • the trigger 14a is raised through the through hole 414a and protrudes from the handle 41.
  • the activation trigger 44b protrudes through the through hole 414b from the handle 41.
  • the first handle housing 412 is formed with through holes 414a, 414b.
  • the two start triggers 44a, 44b are symmetrical about the plane of symmetry P1.
  • the start switches 45a, 45b are disposed in the handle 41.
  • the two start switches 45a, 45b are symmetrical about the plane of symmetry P1.
  • the electromechanical conversion device 43 is disposed in the handle 41.
  • the electromechanical conversion device 43 is located between the two grip portions 411a, 411b.
  • the electromechanical conversion device 43 corresponds to the position of the speed governing member 42.
  • the position of the electromechanical conversion device 43 facilitates the rational use of the space inside the handle 41, and the electromechanical conversion device 43 corresponds to the position of the speed control member 42 to simplify the structure.
  • the electromechanical conversion device 43 is a sliding varistor. It can be understood that the potentiometer also belongs to the sliding rheostat.
  • the sliding rheostat includes a body 431 and a slider 432 that slides relative to the body 431.
  • the sliding varistor outputs a different electrical signal when the slider 432 is in a different position relative to the body 431.
  • the speed governing member 42 moves to move the slider 432 relative to the body 431. More specifically, the speed governing member 42 rotates relative to the handle 41 to slide the slider 432 relative to the body 431.
  • the slider 432 slides in a direction parallel to the central axis 101 with respect to the body 431.
  • the speed governing member 42 is formed with a chute 424 inclined to the central axis 101.
  • the first governor housing 421 forms a chute 424.
  • the chute 424 mates with the slider 432.
  • the rear-drive self-propelled machine 100 further includes a connector 433 to which the connector 433 is fixed.
  • the connector 433 passes through the elongated hole 415.
  • the connector 433 penetrates into the chute 424 of the speed governing member 42 to effect engagement of the chute 424 with the slider 432.
  • the chute 424 moves relative to the slider 432.
  • the chute 424 guides the slider 432 to slide relative to the body 431 in a direction parallel to the central axis 101.
  • the handle 41 is formed with a long hole 415; specifically, the elongated hole 415 extends in a direction parallel to the central axis 101.
  • the elongated hole 415 guides the slider 432 to slide relative to the handle 41 in a direction parallel to the central axis 101.
  • the holes 414a, 414b and the elongated holes 415 are located on the same side of the handle 41.
  • the first handle housing 412 forms an elongated hole 415 and a through hole 414a, 414b.
  • the slider 432 slides in the direction of the central axis 101, and the slider 432 slides in a direction perpendicular to the central axis 101 and rotates along the central axis 101.
  • the handle 41 does not need to be provided with a longer opening in a direction perpendicular to the central axis 101, which is advantageous for facilitating the opening of the slider 432 in a direction perpendicular to the central axis 101. Increase the strength of the handle 41.
  • the speed governing member 42 is rotatably coupled to the handle 41.
  • the speed regulating member 42 is rotatably connected to the handle 41, so that the user can operate with any one of the hands of the user and the two hands are operated in the same manner and are convenient to use.
  • the electromechanical conversion device is a sensor.
  • the sensor detects the position of the speed governing member 142 relative to the handle 141.
  • the electromechanical conversion device is a Hall sensor 143.
  • the Hall sensor 143 detects the position of the speed governing member 142 with respect to the handle 141.
  • the Hall sensor 143 includes a Hall element 1431 and a magnetic member 1432.
  • the magnetic member 1432 fixes the speed control member 142.
  • the Hall element 1431 is fixed to the handle 141.
  • the magnetic member 1432 moves relative to the Hall member 1431.
  • the Hall sensor 143 outputs a different electrical signal.
  • the speed governing member 142 rotates relative to the handle 141 to rotate the magnetic member 1432 relative to the Hall member 1431.
  • the electromechanical conversion device is a Hall sensor 243.
  • the Hall sensor 243 detects the position of the speed governing member 242 with respect to the handle 241.
  • the Hall sensor includes a Hall element 2431 and two magnetic members 2432. Two magnetic members 2432 are fixed to the speed control member 242. As a specific embodiment, the magnetic directions of the two magnetic members 2432 are opposite.
  • the Hall element 2431 is fixed to the handle 241. Specifically, the Hall element 2431 extends beyond the handle 241 between the two magnetic members 2432.
  • the speed governing member 242 is moved relative to the handle 241, the magnetic member 2432 moves relative to the Hall member 2431.
  • the Hall sensor 243 outputs a different electrical signal.
  • the speed governing member 242 rotates relative to the handle 241 to rotate the magnetic member 2432 relative to the Hall member 2431.
  • the electromechanical conversion device may be a touch screen, and the user's finger slides on the touch screen to output different electrical signals to control the rotational speed of the driving motor.
  • the electromechanical conversion device may be a slider. Specifically, the user's finger slides from the back to the front on the slide bar to increase the rotational speed of the drive motor by one gear position, and the rotational speed of the drive motor is increased; the user's finger slides from front to back on the slide bar to decrease the rotational speed of the drive motor by one. In the gear position, the speed of the drive motor is reduced.
  • the rear walk type self-propelled machine 200 is a snow blower.
  • the snow blower includes a work motor 210, a snow sweeper 220, a snow thrower 230, and a chassis 240.
  • the snow sweeper 220 is used as a work attachment to implement the snow sweep function.
  • Snow thrower 230 is used to guide the movement of snow.
  • the working motor 210 drives the snow blower to rotate the snow to be thrown from the snow throwing member 230.
  • the chassis 240 is formed with a cavity 250.
  • the snow sweeper 220 rotates within the tunnel 250.
  • control unit 260 of the snow blower shown in Fig. 14 is the same as the control unit 40 of the lawn mower shown in Fig. 1.

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Abstract

一种后走式自推进机器，包括：驱动电机（30）；把手（41），形成分别供用户左手和右手握持的两个握持部（411a、411b）；调速件（42），相对于把手（41）运动以调节驱动电机（30）的转速；调速件（42）能被用户单手握持握持部时操作；调速件（42）设置于两个握持部（411a、411b）之间；机电转换装置（43），将调速件（42）相对于把手（41）的位置变化转化成用于调节驱动电机（30）的转速的电信号；调速件（42）相对于把手（41）在第一位置和第二位置之间运动；调速件（42）位于第一位置时驱动电机（30）的转速大于调速件（42）位于第二位置时驱动电机（30）的转速。该后走式自推进机器调速件操作方便快捷。

Description

后走式自推进机器 技术领域
本发明涉及一种后走式自推进机器。
背景技术
后走式自推进机器包括驱动电机和轮子。驱动电机驱动轮子转动从而使后走式自推进机器在地面上行进，实现自推进功能。后走式自推进机器包括把手。把手设置于后走式自推进机器的后方，后走式自推进机器向前运动，用户位于后走式自推进机器的后方握持把手以操作和操控后走式自推进机器。
具有自推进功能的割草机和扫雪机是常见的后走式自推进机器。
后走式自推进机器设有调速件和启动扳机。调速件用于控制后走式自推进机器的行进速度。启动扳机用于启动后走式自推进机器的行进功能。
现有的后走式自推进机器的调速件不便于用户在握持把手时进行调速。
现有的后走式自推进机器不便于用户快速在关闭行进功能向后拉动机器和启动行进功能之间切换。
发明内容
为了解决现有技术的不足，本发明的目的在于提供一种在用户握持把手时能够调节行进速度的后走式自推进机器。
为了实现上述目标，本发明采用如下的技术方案：
一种后走式自推进机器，包括：底盘；轮子，用于支撑底盘并相对于底盘转动；驱动电机，驱动轮子转动；把手，供用户推动后走式自推进机器；把手形成分别供用户左手和右手握持的两个握持部；调速件，相对于把手运动以调节驱动电机的转速；调速件能被用户单手握持握持部时操作；调速件设置于两个握持部之间；机电转换装置，将调速件相对于把手的位置变化转化成用于调节驱动电机的转速的电信号；调速件相对于把手在第一位置和第二位置之间运动；调速件位于第一位置时驱动电机的转速大于调速件位于第二位置时驱动电机的转速。
进一步地，机电转换装置设置于把手内。
进一步地，机电转换装置位于两个握持部之间。
进一步地，调速件绕中心轴线转动连接至把手。
进一步地，调速件构造成一个环形零件；调速件环绕把手。
进一步地，把手关于垂直于中心轴线的对称平面对称；握持部包括沿中心轴线延伸的第一握持部；在中心轴线的径向方向上，调速件的最大尺寸大于第一握持部的最大尺寸。
进一步地，调速件设有沿中心轴线的周向排列的多个凹槽。
进一步地，机电转换装置为滑动变阻器；滑动变阻器包括本体和相对于本体滑动的滑块；滑块相对于本体位于不同位置时滑动变阻器输出不同的电信号；调速件相对于把手转动带动滑块相对于本体滑动。
进一步地，机电转换装置设置于把手内；机电转换装置与调速件的位置相对应；调速件相对于把手绕中心轴线转动带动滑块相对于本体沿平行于中心轴线的方向滑动。
进一步地，把手形成有沿平行于中心轴线的方向延伸的长条孔；长条孔导向滑块相对于把手沿平行于中心轴线的方向滑动。
进一步地，调速件形成有倾斜于中心轴线的斜槽；斜槽与滑块配合，斜槽相对于滑块运动时带动滑块相对于本体沿平行于中心轴线的方向滑动。
进一步地，握持部包括沿中心轴线延伸的第一握持部；把手形成有沿平行于中心轴线的方向延伸的长条孔；长条孔导向滑块相对于把手沿平行于中心轴线的方向滑动。
进一步地，后走式自推进机器还包括：启动扳机，供用户操作启动驱动电机；启动扳机设置于握持部；用户单手握持握持部时能操作启动扳机和调速件；把手形成有通过孔；启动扳机穿过通过孔凸出于把手；通过孔与长条孔位于把手的同一侧。
进一步地，机电转换装置为霍尔传感器；霍尔传感器包括：霍尔元件，固定至把手；磁性件，固定至调速件；磁性件相对于霍尔元件位于不同位置时霍尔传感器输出不同的电信号。
进一步地，后走式自推进机器还包括：启动扳机，供用户操作启动驱动电机；用户单手握持握持部时能操作启动扳机和调速件。
进一步地，启动扳机设置于握持部；启动扳机包括凸出于把手的操作部；操作部能被用户握持握持部的手在握持握持部时操作以启动驱动电机。
进一步地，操作部向后凸出于把手；操作部能被用户握持握持部的手在握持 握持部时操作向前运动以启动驱动电机。
进一步地，握持部包括：第一握持部，沿直线延伸；第二握持部，沿直线延伸；连接部，连接第一握持部和第二握持部；第一握持部设置于调速件和连接部之间；第一握持部、第二握持部和连接部构成L型；启动扳机设置于第一握持部和连接部。
进一步地，启动扳机转动连接至把手。
进一步地，后走式自推进机器还包括：工作马达；工作附件，由工作马达驱动执行后走式自推进机器的功能；工作扳机，用于启动工作马达；工作扳机包括供用户操作的活动部；活动部设置于把手的前方并能被用户操作向后运动以启动工作马达；握持部、活动部和操作部能够被用户单手握持。
进一步地，后走式自推进机器还包括：启动开关，能被启动扳机控制用于启动驱动电机，启动开关与驱动电机构成电连接；启动开关设置于把手内。
进一步地，后走式自推进机器包括两个启动扳机；两个握持部关于一对称平面对称；两个启动扳机关于对称平面对称。
进一步地，启动扳机上任意一点到把手的最大距离小于等于20mm。
进一步地，后走式自推进机器，包括：工作马达；割草刀片，由工作马达驱动转动实现后走式自推进机器的割草功能；底盘形成有容纳割草刀片的切割腔。
进一步地，后走式自推进机器，包括：工作马达；扫雪桨，由工作马达驱动转动实现后走式自推进机器的扫雪功能；抛雪件，导向雪的运动。
本发明公开的后走式自推进机器，用户无论使用左手或右手握持均能在单手握持的同时实现对调速件的控制，调节方便快捷。
附图说明
图1是一种后走式自推进机器的示意图；
图2是图1中后走式自推进机器的另一视角的示意图；
图3是图1中后走式自推进机器的部分结构的爆炸图；
图4是图1中后走式自推进机器的控制组件的示意图；
图5是图4中控制组件的开关盒的内部结构示意图；
图6是图4中控制组件的把手的内部结构示意图；
图7是图4中控制组件的部分结构的爆炸图；
图8是图4中控制组件的另一视角的示意图；
图9是图4中控制组件的机电转换装置和调速件的示意图；
图10是图9中调速件的爆炸图；
图11是图9中机电转换装置和调速件的另一视角示意图；
图12是一种机电转换装置、调速件和把手的示意图；
图13是另一种机电转换装置、调速件和把手的示意图；
图14是另一种后走式自推进机器的示意图。
具体实施方式
以下结合附图和具体实施例对本发明作具体的介绍。
图1和图2所示，后走式自推进机器100包括底盘10、轮子20、驱动电机30和控制组件40。
底盘10作为后走式自推进机器100的主要支撑结构，将各部分组装成一体。
轮子20用于支撑底盘10。轮子20相对于底盘10转动从而使底盘10在地面上移动。
驱动电机30用于驱动轮子20转动。驱动电机30安装至底盘10。后走式自推进机器100还包括传动机构31。传动机构31连接驱动电机30和轮子20。
控制组件40用于对后走式自推进机器100进行控制。控制组件40包括把手41。用户通过推动把手41能够推动后走式自推进机器100行进。把手41连接至底盘10。具体而言，后走式自推进机器100还包括连杆50，连杆50连接把手41和底盘10。作为一种可选的实施方式，把手41和连杆50也可以一体成型。即把手41和连杆50作为一个零件。
如图2和图3所示，后走式自推进机器100包括工作附件60和工作马达70。工作马达70驱动工作附件60执行后走式自推进机器100的功能。工作马达70可以是以电力为动力的电机也可以是以燃料燃烧为动力的内燃机。底盘10承载工作马达70。作为一种具体的实施方式，工作马达70为电机。后走式自推进机器100还包括电池包80。电池包80为工作马达70供电。电池包80为驱动电机30供电。作为另一种可选的实施方式，也可以不设置工作马达，由驱动电机驱动工作附件。
作为一种具体的实施方式，图1和图2中所示的后走式自推进机器100为割 草机。割草机包括割草刀片。割草刀片作为工作附件60实现割草功能。底盘10形成有切割腔11。切割腔11容纳割草刀片。割草刀片在切割腔11内转动。
如图4至图8所示，控制组件40包括把手41、调速件42、机电转换装置43、启动扳机44a、44b、启动开关45a、45b、工作扳机46、工作开关47、安全钥匙48和开关盒49。
把手41形成供用户左手握持的握持部411a及供右手握持的握持部411b。握持部411a和握持部411b关于一对称平面P1对称。把手41关于对称平面P1对称。把手41由塑料制成。把手41包括第一把手壳体412和第二把手壳体413。第一把手壳体412和第二把手壳体413形成有腔体。
调速件42用于供用户操作以调节驱动电机30的转速。调速件42相对于把手41运动调节驱动电机30的转速。调速件42设置于把手41的中部。调速件42关于对称平面P1对称。调速件42设置于两个握持部411a、411b之间。用户左手握持握持部411a的同时左手可以操作调速件42。具体而言，用户可以通过左手的手掌握持握持部411a的同时利用左手的拇指操作调速件42。同样，右手也可以采用与左手相同的方式同时完成握持握持部411b和操作调速件42。用户操作方便。作为一种具体的实施，调速件42转动连接把手41。调速件42相对于把手41绕中心轴线101转动。中心轴线101垂直于对称平面P1。调速件42构造成一个环形零件。调速件42环绕把手41。调速件42设有沿中心轴线101的周向排列的多个凹槽423。凹槽423沿中心轴线101方向延伸。以方便用户转动调速件42。调速件42包括第一调速壳体421和第二调速壳体422。把手41设置在第一调速壳体421和第二调速壳体422之间。
机电转换装置43将调速件42相对于把手41的位置变化转化成用于调节驱动电机30的转速的电信号。机电转换装置43设置于把手41内。即机电转换装置43设置在把手41形成的腔体内。
启动扳机44a、44b供用户操作启动驱动电机30。用户可以用左手握持握持部411a时操作启动扳机44a和调速件42。同样用户可以用右手握持握持部411b时操作启动扳机44b和调速件42。即用户只需单手即可实现对启动和调速两种功能的控制。且无论握持握持部411a或者握持握持部411b均能实现对启动和调速两种功能的控制。
启动开关45a能被启动扳机44a控制用于启动驱动电机30。启动开关45a与驱动电机30构成电连接。启动开关45b能被启动扳机44b控制用于启动驱动电机30。启动开关45b与驱动电机30构成电连接。作为一种可选的实施方式，也可以仅设置一个启动开关，两个启动扳机均用于触发该启动开关，从而启动驱动电机。作为另一种可选的实施方式，也可以仅设置一个启动扳机。作为另一种可选的实施方式，两个启动扳机构成一个零件或构成同步运动。用户操作另一个启动扳机运动时，另一个启动扳机同步运动。
工作扳机46用于供用户操作启动工作马达70。工作扳机46包括供用户操作的活动部461a、461b。活动部461a、461b向把手41靠近以启动工作马达70。工作扳机46相对于把手41绕第一轴线102转动。第一轴线102平行于中心轴线101。把手41相对于底盘10绕第二轴线103转动，实现把手41的折叠存储功能。第二轴线103平行于中心轴线101。轮子20相对于底盘10绕第三轴线104转动。第三轴线104平行于中心轴线101。连杆50包括第一连杆51和第二连杆52。第一连杆51和第二连杆52构成滑动连接。第一连杆51相对于第二连杆52沿第一直线105的方向滑动。第一直线105垂直于中心轴线101。后走式自推进机器100包括用于安装或容纳电池包80的电池盒81。电池包80沿第二直线106的方向滑动连接至电池盒81。第二直线106垂直于中心轴线101。工作附件60的转动轴线平行或垂直于中心轴线101。
工作开关47能被工作扳机46控制用于启动工作马达70。工作开关47与工作马达70构成电连接。
安全钥匙48能够防止工作扳机46被误触碰造成工作马达70启动。用户需要按压安全钥匙48，然后转动工作扳机46，工作开关47才能被触发以启动工作马达70。
开关盒49用于容纳工作开关47。工作扳机46绕第一轴线102转动连接至开关盒49。开关盒49包括开关盒盖491和开关盒座492。开关盒49固定至把手41。开关盒49固定连杆50。开关盒盖491和开关盒座492从两侧夹持把手41和连杆50。
后走式自推进机器100还包括电路板组件90。电路板组件90根据机电转换装置43的电信号控制驱动电机30的转速。电路板组件90电连接述驱动电机30 和机电转换装置43。作为一种具体的实施方式，如图3所示，电路板组件90设置于底盘10。作为其他可选的实施方式，电路板组件90也可以设置于开关盒49或把手41。
图4中调速件42处于第一位置。图5中调速件42处于第二位置。调速件42能相对于把手41从第一位置转动至第二位置。调速件42位于第一位置时，电路板组件90控制驱动电机30的转速大于调速件42位于第二位置时电路板组件90控制驱动电机30的转速。具体而言，调速件42在第一位置和第二位置时机电转换装置43输出不同的电信号。电路板组件90根据机电转换装置43不同的电信号控制驱动电机30以不同的速度转动。
握持部411a包括第一握持部416a、第二握持部417a和连接部418a。握持部411b包括第一握持部416b、第二握持部417b和连接部418b。第一握持部416a沿直线延伸。具体而言，第一握持部416a沿中心轴线101延伸。第一握持部416b沿中心轴线101延伸。第二握持部417a沿直线延伸。第二握持部417b沿直线延伸。第二握持部417a和第二握持部417b的延伸方向与中心轴线101倾斜相交。第一握持部416a和第一握持部416b邻近调速件42。调速件42位于第一握持部416a和第一握持部416b之间。第一握持部416a设置在调速件42和连接部418a之间。第一握持部416b设置在调速件42和连接部418b之间。第一握持部416a、第二握持部417a和连接部418a构成L型。第一握持部416b、第二握持部417b和连接部418b构成L型。
在中心轴线101的径向方向上，调速件42的最大尺寸大于第一握持部416a的最大尺寸，调速件42的最大尺寸大于第一握持部416b的最大尺寸。第一握持部416a的最大尺寸与第一握持部416b的最大尺寸相同。方便用户在握持第一握持部416a、416b的同时利用拇指对调速件42进行操控。在中心轴线101的径向方向上，第一握持部416a的最大尺寸与第一握持部416b的最大尺寸相同。第一握持部416a和第一握持部416b关于对称平面P1对称。
启动扳机44a设置于握持部411a。启动扳机44b设置于握持部411b。启动扳机44a、44b转动连接至把手41。
启动扳机44a包括凸出于把手41的操作部441a。启动扳机44b包括凸出于把手41的操作部441b。操作部441a能被用户握持握持部411a的手在握持握持 部411a时操作以启动驱动电机30。操作部441b能被用户握持握持部411b的手在握持握持部411b时操作以启动驱动电机30。具体而言，操作部441a、441b向后凸出于把手41。操作部441a能被用户握持握持部411a的手在握持握持部411a时操作向前运动以启动驱动电机30。操作部441b能被用户握持握持部411b的手在握持握持部411b时操作向前运动以启动驱动电机30。启动扳机44a、44b启动时驱动电机30驱动后走式自推进机器100向前运动。用户握持握持部411a、411b时，向前推动把手41能够启动驱动电机30。而当用户需要手动拉动后走式自推进机器100向后运动时，此时需要释放启动扳机44a、44b关闭驱动电机30。用户可以放松把手41的握持向后拉动把手41，此时启动扳机44a、44b不受到来自手的作用力，能够被释放。避免了启动扳机44a、44b设置于把手41前方时，向后拉动把手41时启动扳机44a、44b仍然受到来自手的作用力造成启动扳机44a、44b处于开启状态，即驱动电机30没有关闭用户难以向后拉动机器。具体而言，启动扳机44a、44b上任意一点到把手41的最大距离小于等于20mm。方便用户在放松对握持部411a、411b的握持向后拉动把手41时使启动扳机44a、44b被释放。
启动扳机44a设置于第一握持部416a和连接部418a。启动扳机44b设置于第一握持部416b和连接部418b。具体而言，操作部441a的一端设置于第一握持部416a；操作部441a的另一端设置于连接部418a。操作部441b的一端设置于第一握持部416b；操作部441b的另一端设置于连接部418b。用户握持第一握持部416a时可以用掌心控制启动扳机44a。在用户握持第一握持部416a的同时启动扳机44a被触发。后走式自推进机器100处于自推进状态。操作方便快捷。同样，用户握持第一握持部416b时可以用掌心控制启动扳机44b。启动扳机44a、44b没有位于第二握持部417a、417b。用户握持第二握持部417a、417b时，启动扳机44a、44b不会由于用户握持第二握持部417a、417b造成启动扳机44a、44b被触发。此时后走式自推进机器100处于非自推进状态。当用户不需要使用自推进功能时，可以握持第二握持部417a、417b进行操作。用户握持第二握持部417a、417b时可以用拇指控制启动扳机44a、44b，使后走式自推进机器100进入自推进状态。
工作扳机46包括分别供用户左手和右手操作的活动部461a、461b。活动部 461a、461b设置于把手41的前方。用户操作活动部461a、461b向后运动以启动工作马达70。握持部411a、活动部461a和操作部441a能够被用户单手握持。同样握持部411b、活动部461b和操作部441b能够被用户单手握持。活动部461a、461b沿直线延伸。工作扳机还包括连接两个活动部461a、461b的中间部462。中间部462偏离活动部461a、461b延伸的直线。把手41形成有容纳槽，容纳槽能够容纳活动部461a、461b。在工作扳机46被用户触发时，活动部461a、461b位于容纳槽内，便于用户握持握持部411a、411b。
启动扳机44a用于触发启动开关45a。启动扳机44b用于触发启动开关45b。把手41形成有通过孔414a、414b。启动扳机44a穿过通过孔414a凸出于把手41。启动扳机44b穿过通过孔414b凸出于把手41。具体而言，第一把手壳体412形成有通过孔414a、414b。两个启动扳机44a、44b关于对称平面P1对称。启动开关45a、45b设置于把手41内。两个启动开关45a、45b关于对称平面P1对称。
机电转换装置43设置于把手41内。机电转换装置43位于两个握持部411a、411b之间。机电转换装置43与调速件42的位置相对应。机电转换装置43的位置有利于合理利用把手41内部的空间，机电转换装置43与调速件42位置相对应从而简化了结构。
作为一种具体的实施方式，机电转换装置43为滑动变阻器。可以理解电位器也属于滑动变阻器。
具体而言，滑动变阻器包括本体431和相对于本体431滑动的滑块432。滑块432相对于本体431处于不同位置时滑动变阻器输出不同的电信号。调速件42运动带动滑块432相对于本体431运动。更具体而言，调速件42相对于把手41转动带动滑块432相对于本体431滑动。滑块432相对于本体431沿平行于中心轴线101的方向滑动。
如图7、图9至图11所示，调速件42形成有倾斜于中心轴线101的斜槽424。第一调速壳体421形成斜槽424。斜槽424与滑块432配合。具体而言，后走式自推进机器100还包括连接件433，连接件433固定至滑块432。连接件433穿过长条孔415。连接件433深入至调速件42的斜槽424内从而实现斜槽424与滑块432的配合。
调速件42相对于把手41转动时，斜槽424相对于滑块432运动。斜槽424导向滑块432相对于本体431沿平行于中心轴线101的方向滑动。把手41形成有长条孔415；具体而言，长条孔415沿平行于中心轴线101的方向延伸。长条孔415导向滑块432相对于把手41沿平行于中心轴线101的方向滑动。通过孔414a、414b与长条孔415位于把手41的同一侧。第一把手壳体412形成长条孔415和通过孔414a、414b。
滑块432沿中心轴线101方向滑动相比滑块432沿垂直于中心轴线101的方向滑动以及沿中心轴线101转动，把手41不需要在垂直于中心轴线101方向上设置较长的开口，有利于增加把手41的强度。调速件42转动连接把手41。相比调速件滑动连接至把手的结构，调速件42转动连接把手41，便于用户双手中任意一只手进行操作且两只手的操作方式相同使用方便。
作为另一种具体的实施方式，机电转换装置为传感器。传感器检测调速件142相对于把手141的位置。具体而言，如图12所示，机电转换装置是霍尔传感器143。霍尔传感器143检测调速件142相对于把手141的位置。霍尔传感器143包括霍尔元件1431和磁性件1432。磁性件1432固定调速件142。霍尔元件1431固定至把手141。当调速件142相对于把手141运动时，磁性件1432相对于霍尔元件1431发生运动。磁性件1432相对于霍尔元件1431位于不同位置时，霍尔传感器143输出不同的电信号。调速件142相对于把手141转动带动磁性件1432相对于霍尔元件1431转动。
如图13所示，机电转换装置是霍尔传感器243。霍尔传感器243检测调速件242相对于把手241的位置。霍尔传感器包括霍尔元件2431和两个磁性件2432。两个磁性件2432固定至调速件242。作为一种具体的实施方式，两个磁性件2432的磁性方向相反。霍尔元件2431固定至把手241。具体而言，霍尔元件2431伸出把手241之外，位于两个磁性件2432之间。当调速件242相对于把手241运动时，磁性件2432相对于霍尔元件2431发生运动。磁性件2432相对于霍尔元件2431位于不同位置时，霍尔传感器243输出不同的电信号。调速件242相对于把手241转动带动磁性件2432相对于霍尔元件2431转动。
作为一种可选的实施方式,机电转换装置可以是触摸屏,用户手指在触摸屏上滑动输出不同的电信号从而控制驱动电机的转速。
作为另一种可选的实施方式,机电转换装置可以是滑动条。具体而言，用户手指在滑动条上从后向前滑动一次使驱动电机的转速提高一个档位，驱动电机的转速增高；用户手指在滑动条上从前向后滑动一次使驱动电机的转速下降一个档位，驱动电机的转速降低。
作为一种具体的实施方式，如图14所示，后走式自推进机器200为扫雪机。扫雪机包括工作马达210、扫雪桨220、抛雪件230和底盘240。扫雪桨220作为工作附件实现扫雪功能。抛雪件230用于导向雪的运动。工作马达210驱动扫雪机转动带动雪从抛雪件230抛出。底盘240形成有腔道250。扫雪桨220在腔道250内转动。图14所示的扫雪机与图1所示的割草机相比，可以采用相同的控制自推进的方式以及相同的用于实现自推进的结构。具体而言，图14所示的扫雪机的控制组件260与图1所示的割草机的控制组件40相同。
以上显示和描述了本发明的基本原理、主要特征和优点。本行业的技术人员应该了解，上述实施例不以任何形式限制本发明，凡采用等同替换或等效变换的方式所获得的技术方案，均落在本发明的保护范围内。

Claims (25)

  1. 一种后走式自推进机器，包括：
    底盘；
    轮子，用于支撑所述底盘并相对于所述底盘转动；
    驱动电机，驱动所述轮子转动；
    把手，供用户推动所述后走式自推进机器；所述把手形成分别供用户左手和右手握持的两个握持部；
    调速件，相对于所述把手运动以调节所述驱动电机的转速；所述调速件能被用户单手握持所述握持部时操作；所述调速件设置于两个所述握持部之间；
    机电转换装置，将所述调速件相对于所述把手的位置变化转化成用于调节所述驱动电机的转速的电信号；
    所述调速件相对于所述把手在第一位置和第二位置之间运动；
    所述调速件位于第一位置时所述驱动电机的转速大于所述调速件位于第二位置时所述驱动电机的转速。
  2. 根据权利要求1所述的后走式自推进机器，其特征在于：
    所述机电转换装置设置于所述把手内。
  3. 根据权利要求2所述的后走式自推进机器，其特征在于：
    所述机电转换装置位于两个所述握持部之间。
  4. 根据权利要求1所述的后走式自推进机器，其特征在于：
    所述调速件绕中心轴线转动连接至所述把手。
  5. 根据权利要求4所述的后走式自推进机器，其特征在于：
    所述调速件构造成一个环形零件；所述调速件环绕所述把手。
  6. 根据权利要求5所述的后走式自推进机器，其特征在于：
    所述把手关于垂直于所述中心轴线的对称平面对称；
    所述握持部包括沿所述中心轴线延伸的第一握持部；
    在所述中心轴线的径向方向上，所述调速件的最大尺寸大于所述第一握持部的最大尺寸。
  7. 根据权利要求5所述的后走式自推进机器，其特征在于：
    所述调速件设有沿所述中心轴线的周向排列的多个凹槽。
  8. 根据权利要求4所述的后走式自推进机器，其特征在于：
    所述机电转换装置为滑动变阻器；
    所述滑动变阻器包括本体和相对于所述本体滑动的滑块；所述滑块相对于所述本体位于不同位置时所述滑动变阻器输出不同的电信号；
    所述调速件相对于所述把手转动带动所述滑块相对于所述本体滑动。
  9. 根据权利要求8所述的后走式自推进机器，其特征在于：
    所述机电转换装置设置于所述把手内；所述机电转换装置与所述调速件的位置相对应；
    所述调速件相对于所述把手绕所述中心轴线转动带动所述滑块相对于所述本体沿平行于所述中心轴线的方向滑动。
  10. 根据权利要求9所述的后走式自推进机器，其特征在于：
    所述把手形成有沿平行于所述中心轴线的方向延伸的长条孔；
    所述长条孔导向所述滑块相对于所述把手沿平行于所述中心轴线的方向滑动。
  11. 根据权利要求9所述的后走式自推进机器，其特征在于：
    所述调速件形成有倾斜于所述中心轴线的斜槽；
    所述斜槽与所述滑块配合，所述斜槽相对于所述滑块运动时带动所述滑块相对于所述本体沿平行于所述中心轴线的方向滑动。
  12. 根据权利要求8所述的后走式自推进机器，其特征在于：
    所述握持部包括沿中心轴线延伸的第一握持部；
    所述把手形成有沿平行于所述中心轴线的方向延伸的长条孔；
    所述长条孔导向所述滑块相对于所述把手沿平行于所述中心轴线的方向滑动。
  13. 根据权利要求12所述的后走式自推进机器，其特征在于：
    所述后走式自推进机器还包括：
    启动扳机，供用户操作启动所述驱动电机；所述启动扳机设置于所述握持部；用户单手握持所述握持部时能操作所述启动扳机和所述调速件；
    所述把手形成有通过孔；所述启动扳机穿过所述通过孔凸出于所述把手；
    所述通过孔与所述长条孔位于所述把手的同一侧。
  14. 根据权利要求1所述的后走式自推进机器，其特征在于：
    所述机电转换装置为霍尔传感器；
    所述霍尔传感器包括：
    霍尔元件，固定至所述把手；
    磁性件，固定至所述调速件；
    所述磁性件相对于所述霍尔元件位于不同位置时所述霍尔传感器输出不同的电信号。
  15. 根据权利要求1所述的后走式自推进机器，其特征在于：
    所述后走式自推进机器还包括：
    启动扳机，供用户操作启动所述驱动电机；
    用户单手握持所述握持部时能操作所述启动扳机和所述调速件。
  16. 根据权利要求15所述的后走式自推进机器，其特征在于：
    所述启动扳机设置于所述握持部；所述启动扳机包括凸出于所述把手的操作部；
    所述操作部能被用户握持所述握持部的手在握持所述握持部时操作以启动所述驱动电机。
  17. 根据权利要求16所述的后走式自推进机器，其特征在于：
    所述操作部向后凸出于所述把手；
    所述操作部能被用户握持所述握持部的手在握持所述握持部时操作向前运动以启动所述驱动电机。
  18. 根据权利要求16所述的后走式自推进机器，其特征在于：
    所述握持部包括：
    第一握持部，沿直线延伸；
    第二握持部，沿直线延伸；
    连接部，连接所述第一握持部和所述第二握持部；
    所述第一握持部设置于所述调速件和所述连接部之间；
    所述第一握持部、所述第二握持部和所述连接部构成L型；所述启动扳机设置于所述第一握持部和所述连接部。
  19. 根据权利要求16所述的后走式自推进机器，其特征在于：
    所述启动扳机转动连接至所述把手。
  20. 根据权利要求16所述的后走式自推进机器，其特征在于：
    所述后走式自推进机器还包括：
    工作马达；
    工作附件，由所述工作马达驱动执行所述后走式自推进机器的功能；
    工作扳机，用于启动所述工作马达；
    所述工作扳机包括供用户操作的活动部；
    所述活动部设置于所述把手的前方并能被用户操作向后运动以启动所述工作马达；
    所述握持部、所述活动部和所述操作部能够被用户单手握持。
  21. 根据权利要求15所述的后走式自推进机器，其特征在于：
    所述后走式自推进机器还包括：
    启动开关，能被所述启动扳机控制用于启动所述驱动电机，所述启动开关与所述驱动电机构成电连接；
    所述启动开关设置于所述把手内。
  22. 根据权利要求15所述的后走式自推进机器，其特征在于：
    所述后走式自推进机器包括两个所述启动扳机；
    两个所述握持部关于一对称平面对称；
    两个所述启动扳机关于所述对称平面对称。
  23. 根据权利要求15所述的后走式自推进机器，其特征在于：
    所述启动扳机上任意一点到所述把手的最大距离小于等于20mm。
  24. 根据权利要求1所述的后走式自推进机器，其特征在于：
    所述后走式自推进机器，包括：
    工作马达；
    割草刀片，由所述工作马达驱动转动实现所述后走式自推进机器的割草功能；
    所述底盘形成有容纳所述割草刀片的切割腔。
  25. 根据权利要求1所述的后走式自推进机器，其特征在于：
    所述后走式自推进机器，包括：
    工作马达；
    扫雪桨，由所述工作马达驱动转动实现所述后走式自推进机器的扫雪功能；
    抛雪件，导向雪的运动。
PCT/CN2017/084996 2017-05-02 2017-05-19 后走式自推进机器 WO2018201525A1 (zh)

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