WO2022268005A1 - 一种刀具组件、动力头及推草机 - Google Patents

一种刀具组件、动力头及推草机 Download PDF

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Publication number
WO2022268005A1
WO2022268005A1 PCT/CN2022/099685 CN2022099685W WO2022268005A1 WO 2022268005 A1 WO2022268005 A1 WO 2022268005A1 CN 2022099685 W CN2022099685 W CN 2022099685W WO 2022268005 A1 WO2022268005 A1 WO 2022268005A1
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WO
WIPO (PCT)
Prior art keywords
boss
assembly
blade
push rod
cavity
Prior art date
Application number
PCT/CN2022/099685
Other languages
English (en)
French (fr)
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WO2022268005A9 (zh
WO2022268005A8 (zh
Inventor
冯守川
董建华
Original Assignee
格力博(江苏)股份有限公司
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 CN202121393386.9U external-priority patent/CN215011685U/zh
Priority claimed from CN202110696169.5A external-priority patent/CN115500146A/zh
Priority claimed from CN202110787992.7A external-priority patent/CN115606397A/zh
Priority claimed from CN202121593898.XU external-priority patent/CN215122159U/zh
Priority claimed from CN202122023414.4U external-priority patent/CN215379959U/zh
Application filed by 格力博(江苏)股份有限公司 filed Critical 格力博(江苏)股份有限公司
Priority to CA3223635A priority Critical patent/CA3223635A1/en
Priority to EP22827499.9A priority patent/EP4349153A1/en
Publication of WO2022268005A1 publication Critical patent/WO2022268005A1/zh
Publication of WO2022268005A9 publication Critical patent/WO2022268005A9/zh
Publication of WO2022268005A8 publication Critical patent/WO2022268005A8/zh
Priority to US18/540,806 priority patent/US20240107939A1/en

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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D34/00Mowers; Mowing apparatus of harvesters
    • A01D34/01Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/76Driving mechanisms for the cutters
    • A01D34/78Driving mechanisms for the cutters electric
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D34/00Mowers; Mowing apparatus of harvesters
    • A01D34/01Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/67Mowers; 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
    • A01D34/68Mowers; 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
    • A01D34/685Mowers; 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 two or more cutters
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D34/00Mowers; Mowing apparatus of harvesters
    • A01D34/01Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/73Cutting apparatus
    • A01D34/733Cutting-blade mounting means
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D34/00Mowers; Mowing apparatus of harvesters
    • A01D34/01Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/81Casings; Housings
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D2101/00Lawn-mowers
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D34/00Mowers; Mowing apparatus of harvesters
    • A01D34/01Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/67Mowers; 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

Definitions

  • the invention belongs to the technical field of garden tools, and in particular relates to a cutter assembly, a power head and a grass pusher.
  • the lawn pusher is mainly used in garden decoration trimming, grassland greening trimming, urban streets, greening attractions, scenic trimming, field weeding, especially grasslands, grasslands, football fields and other grasslands in parks.
  • a double-layer blade is installed on the pusher, and the two blades are staggered at a certain angle, so that the grass can be cut twice from high to low, so that the grass can be cut
  • the grass cutting is finer, so as to achieve the purpose of breaking grass.
  • the invention proposes a grass pusher to improve the existing push rod adjustment structure.
  • the existing push rod adjustment structure is usually arranged at the pivot joint between the push rod and the body. When operating, the operator needs to bend down to operate and release the lower part of the push rod. Therefore, it is easy to bring problems such as inconvenient use and fatigue to the operator.
  • the present invention proposes a cutter assembly, comprising:
  • a knife seat, a first boss and a second boss are arranged on the blade assembly surface of the knife seat, the height of the first boss is the first height, and the height of the second boss is the second height;
  • the first blade has a first installation hole matched with the first boss
  • the second blade has a second mounting hole matched with the second boss
  • the first blade is mounted on the first boss, and the second blade is mounted on the second boss.
  • the first height is greater than the second height.
  • the range of the first height is 5-8 mm, and the range of the second height is 2-4 mm.
  • the first blade is stacked on the second blade, and the two blades are arranged in an offset position.
  • the second boss is located between the first boss and the knife seat.
  • the projected contour of the first boss on the knife seat is located within the projected contour of the second boss on the knife seat.
  • At least one second positioning boss is provided on the blade mounting surface of the knife seat, and the second positioning boss is located on the side of the second boss, and the first positioning boss is located on the side of the second boss.
  • the second blade has a second positioning hole matched with the second positioning boss.
  • At least one first positioning boss is provided on the blade assembly surface of the knife seat, and the first positioning boss is located on the side of the first boss, and the first positioning boss is Two positioning bosses are located between the first positioning boss and the knife seat, and the first blade has a first positioning hole matching the first positioning boss.
  • the first positioning boss has a fool-proof design.
  • At least one supporting boss is provided on the edge of the blade mounting surface of the knife seat, and the first blade is supported on the supporting platform of the supporting boss.
  • the present invention proposes a power head, and the power head includes:
  • a housing comprising at least one external air inlet
  • a cover disposed on the housing, and the housing and the cover form a first cavity
  • a control assembly is arranged on the housing, and the cover covers the control assembly;
  • At least one internal air inlet hole is arranged on the housing, and the internal air inlet hole is located on the side of the control assembly;
  • At least one wind deflector is arranged on the housing, and the control assembly and the wind deflector form a second cavity;
  • a drive assembly disposed on the bottom of the housing, the drive assembly includes an air outlet, and the drive assembly and the wind deflector form a third cavity;
  • the cooling air flow enters the first cavity through the external air inlet hole, enters the second cavity and the third cavity through the internal air inlet hole, and flows out through the air outlet hole .
  • the cover includes a windshield, and the windshield contacts the top of the housing.
  • control assembly includes:
  • the shell is arranged on the support seat
  • the control element is arranged on the housing, and the heat sink and the control element are located in the second cavity.
  • the drive assembly includes:
  • a motor base arranged at the bottom of the housing, and the air outlet is located on the motor base;
  • the motor is arranged on the motor base.
  • the housing further includes a battery pack cavity, and an energy component is disposed in the battery pack cavity.
  • the wind speed of the cooling airflow in the second cavity is greater than the wind speed in the third cavity.
  • the present invention proposes a push rod folding mechanism, comprising:
  • Chassis the two ends of the bottom are respectively equipped with front wheels and rear wheels;
  • a cutter assembly installed on the bottom of the chassis and connected to the drive assembly
  • the push rod folding mechanism is installed on the chassis, and the push rod folding mechanism includes:
  • the push rod mounting seat is fixedly installed on the chassis
  • a limiting plate is installed on the push rod mounting seat, and a plurality of limiting structures are arranged on the limiting plate;
  • a push rod one end of which is rotatably connected to the limiting plate, and the push rod includes a first push rod and a second push rod;
  • the limit component is located in the push rod, and the cross bar can drive the limit component to move, so that the push rod can be fixed at different positions of the limit plate.
  • the limiting assembly includes a spring pin
  • the limiting structure includes at least a first limiting structure, a second limiting structure and a third limiting structure, and the first limiting structure
  • the positioning structure, the second limiting structure and the third limiting structure are arranged at intervals in the circumferential direction;
  • the first limiting structure is provided with a first limiting hole, and the spring pin cooperates with the first limiting hole to fix the push rod at the first position;
  • the second limiting structure is a baffle, and the spring pin on the limiting component cooperates with the baffle to fix the push rod at the second position;
  • a second limiting hole is provided on the third limiting structure, and the spring pin on the limiting component cooperates with the second limiting hole to fix the push rod at the third position.
  • a notch is provided on the push rod, the cross bar is installed at the notch through a cross bar mounting plate, and the cross bar mounting plate is adapted to the notch.
  • the limiting assembly further includes:
  • a connecting piece is fixedly connected to one end of the spring pin, and the connecting piece is connected to the push rod through a pin;
  • the spring is sleeved on the elastic pin and is located between the connecting piece and the gasket at the front end of the elastic pin;
  • a steel wire rope, one end of the steel wire rope is connected to the connecting piece, and the other end is connected to the cross bar mounting plate.
  • the cutting knife assembly of the present invention can more conveniently realize the assembly and replacement of the double blades by setting the step-shaped blade positioning installation boss on the knife seat.
  • the cutting knife assembly of the present invention can support the first blade when the first blade is separately assembled by setting the step-shaped blade positioning installation boss on the knife seat, and the position of the first blade can remain unchanged.
  • the power head of the present invention includes a casing, and the casing includes a first casing and a second casing which are arranged symmetrically, and external air inlet holes are arranged on the first casing and the second casing.
  • a cover is provided on the casing, and the first casing, the second casing and the cover form a first cavity, and cooling air flows into the first cavity through the external air inlet hole.
  • the utility model is also provided with a support base on the housing, and internal air inlet holes are provided at both ends of the support base.
  • the housing also includes a wind deflector, which extends to the inside of the support base.
  • the wind deflector Connect the internal air inlet, when the control assembly is installed on the support base, the control assembly and the air deflector can form a second cavity, and the cooling fins and control elements on the control assembly are also located in the second cavity, entering the first cavity.
  • the cooling airflow in the cavity can enter the second cavity through the internal air inlet hole, and at the same time, due to the function of the air deflector, the cooling airflow can fully contact the heat sink and the control element, which is beneficial to the rapid heat dissipation of the control element and heat sink.
  • the drive assembly and the wind deflector form a third cavity. Since the wind deflector forms a ventilation gap, the second cavity and the third cavity can be communicated. body, so the cooling air flow can enter the third cavity.
  • a plurality of limiting structures are arranged on the limiting plate, and the push rod is installed on the limiting plate, and the cooperation between the pushing rod and the limiting structure is controlled by the cross bar, thereby
  • the push rod assembly can be fixed at different positions, and the push rod assembly can be fixed to the required position with one hand, and the operator can pull the cross bar at any position beside the mower to operate It's very convenient.
  • Fig. 1 is a structural schematic diagram of a grass pusher.
  • Fig. 2 is a schematic diagram of the assembly of the pusher and the grass collecting frame in one embodiment.
  • Fig. 3 is a schematic diagram of the assembly of the drive assembly and the chassis in one embodiment.
  • Fig. 4 is a schematic structural diagram of the chassis in an embodiment.
  • Fig. 5 is a structural schematic diagram of a push rod assembly in an embodiment.
  • Fig. 6 is a schematic structural view of the limit assembly in the push rod assembly in an embodiment.
  • Fig. 7 is a schematic diagram of assembly of the cross bar and the cross bar mounting plate in the push rod assembly in one embodiment.
  • Fig. 8 is a schematic structural view of the limit plate in the push rod assembly in an embodiment.
  • Fig. 9 is a schematic diagram of a partial structure of the push rod in the push rod assembly in one embodiment.
  • Fig. 10 is a schematic diagram of the push rod assembly in the second position in an embodiment.
  • Fig. 11 is a schematic diagram of the push rod assembly in the third position in an embodiment.
  • Fig. 12 is a schematic diagram of the bottom structure of the mower in one embodiment.
  • Fig. 13 is a schematic structural view of the block after the bottom of the mower is assembled in one embodiment.
  • Fig. 14 is a schematic structural view of the rear block in an embodiment.
  • Fig. 15 is a schematic top view of the rear block in an embodiment.
  • Fig. 16 is a schematic diagram of another angle structure of the rear block in an embodiment.
  • Fig. 17 is a schematic structural diagram of a fixing member in an embodiment.
  • FIG. 18 is an enlarged schematic view at point C in FIG. 4 .
  • Fig. 19 is a schematic diagram of the assembly of the chassis and the battery pack accommodating cavity in one embodiment.
  • FIG. 20 is a schematic structural view of the battery pack accommodating cavity in an embodiment.
  • Fig. 21 is a front view of Fig. 19 .
  • Fig. 22 is a sectional view along H-H in Fig. 21 .
  • Fig. 23 is a partial exploded view of the mower in one embodiment.
  • Fig. 24 is a schematic diagram of the assembly of the driving assembly and the cutter assembly in one embodiment.
  • Fig. 25 is a structural schematic view of another angle of the mower in an embodiment.
  • FIG. 26 is an enlarged schematic view at point F in FIG. 25 .
  • Fig. 27 is a structural schematic diagram of the height adjustment mechanism in an embodiment.
  • Fig. 28 is a front view of Fig. 27 .
  • Fig. 29 is a schematic diagram of the assembly of the tailgate and the height adjustment mechanism in one embodiment.
  • FIG. 30 is a bottom view of FIG. 29 .
  • Fig. 31 is a partial structural schematic diagram of the height adjustment mechanism in an embodiment.
  • Fig. 32 is a structural schematic diagram of the gear plate in the height adjustment mechanism in an embodiment.
  • Fig. 33 is another perspective structure diagram of the height adjustment mechanism in one embodiment.
  • FIG. 34 is a top view of FIG. 29 .
  • Fig. 35 is a sectional view along D-D in Fig. 34 .
  • Fig. 36 is a structural schematic diagram of a gear indicator in the height adjustment mechanism in an embodiment.
  • Fig. 37 is a schematic diagram of the assembly of the gear indicator and the base plate in an embodiment.
  • Fig. 38 is a schematic structural view of the casing in an embodiment.
  • Fig. 39 is a schematic diagram of the assembly of the casing and flip structure in one embodiment.
  • FIG. 40 is a structural schematic diagram of a flip structure in an embodiment.
  • Fig. 41 is a schematic diagram of the inner structure of the flip structure in an embodiment.
  • Fig. 42 is a structural schematic diagram of the flip cover fixing seat in the flip cover structure in an embodiment.
  • Fig. 43 is a three-dimensional structural schematic diagram of another lawn pusher.
  • Figure 44 is an exploded assembly view of another mower cutter assembly.
  • Figure 45 is a bottom view of the first blade of the grass mowing assembly in one embodiment.
  • Figure 46 is a front view of the first blade of the grass mowing assembly in one embodiment.
  • Fig. 47 is a perspective view of the second blade of the mowing assembly in an embodiment.
  • Figure 48 is a top view of a second blade of a grass mowing assembly in one embodiment.
  • Figure 49 is a front view of the second blade of the grass mowing assembly in one embodiment.
  • Fig. 50 is a schematic perspective view of the three-dimensional structure of the knife seat of the mowing assembly in one embodiment.
  • Fig. 51 is a schematic bottom view of the three-dimensional structure of the knife seat of the mowing assembly in one embodiment.
  • Fig. 52 is a cross-sectional view along the direction A-A in Fig. 41 .
  • Fig. 53 is a structural schematic diagram of a mowing assembly assembled on a rotating output shaft in an embodiment.
  • Fig. 54 is a cross-sectional view along the direction B-B in Fig. 53 .
  • a garden tool taking a mower 100 as an example, includes a chassis 10, a cover 20, a push rod assembly 30, a working assembly and a driving assembly 50, and the driving assembly 50 is installed on the chassis 10,
  • the working assembly can be a cutter assembly 40, the cutter assembly 40 is located in the cutter accommodation chamber 101 at the bottom of the chassis 10, and is fixedly connected with the output shaft of the drive assembly 50, the casing 20 is placed on the chassis 10, and the drive assembly 50 is wrapped in Inside, front wheels 102 and rear wheels 103 are installed on both sides of the bottom of the chassis 10, so that the mower 100 can be moved easily.
  • the chassis 10 includes a base plate 11 and a tail plate 12, the tail plate 12 is fixedly installed on the tail of the base plate 11, and the base plate 11 is on the side away from the tail plate 12
  • a first groove 110 is provided for accommodating the front wheel shaft 111, and front wheels 102 are installed at both ends of the front wheel shaft 111
  • a second groove 112 is also provided on the tail plate 12 for accommodating the rear wheel shaft 113, the rear wheel shaft 113
  • the two ends of the rear wheel 103 are installed, and the front wheel 102 and the rear wheel 103 are respectively the front wheel shaft 111 and the rear wheel shaft 113 as the center of rotation to freely rotate, so as to move the grass pusher 100, and a grass collecting part is detachably installed at the tail plate 12 1001, in order to store cut grass, the grass collecting part 1001 is a grass collecting frame.
  • the push rod assembly 30 is installed on the side of the chassis 10 close to the rear wheel 103, specifically, push rods are arranged on both sides of the top surface of the rear part of the base plate 11
  • the mounting base 114, one end of the push rod assembly 30 is connected with the push rod mounting base 114, so that the push rod assembly 30 can be used to push the mower 100 to move.
  • the push rod assembly 30 includes a limit plate 31, a push rod, a cross bar 33 and a limit assembly 34, the limit plate 31 and the push rod mounting seat 114 Fixedly connected, the push rod is rotationally connected with the limit plate 31 through a rotating part 321, and the rotating part 321 is rotationally connected on the limit plate 31, that is, the push rod can rotate with the rotation center of the rotating part 321 as the center of rotation, thereby pushing the push rod
  • the rod rotates to different positions, and is limited by the cooperation of the limit assembly 34 and the limit plate 31.
  • the push rod is a hollow structure, so as to accommodate the limit assembly 34, and the push rod includes a first push rod 301 and a second push rod. Two push rods 302 , the cross bar 33 is installed between the first push rod 301 and the second push rod 302 .
  • the ends of the first push rod 301 and the second push rod 302 away from the chassis 10 are connected by a U-shaped upper push rod 303 .
  • a switch box 304 is fixed on the U-shaped upper push rod 303, and the main knife motor can be started by the double action of the button on the switch box 304 and the switch handle.
  • the structure of the first push rod 301 and the second push rod 302 are consistent, and the first push rod 301 is used as an example for illustration, and the push rod is installed away from the push rod
  • One end of the seat 114 is provided with a second notch 322, a cross bar mounting plate 331 is installed at the second notch 322, the cross bar mounting plate 331 is adapted to the second notch 322, and the cross bar mounting plate 331 includes a first mounting plate 3311 and the second mounting plate 3312, the first mounting plate 3311 and the second mounting plate 3312 are respectively installed on both sides of the second notch 322, so as to close the second notch 322, and a second bar mounting plate 331 is provided with
  • the through hole 3313 is used to connect the cross bar 33, and the second mounting plate 3312 extends inwardly to form a plurality of barb structures 3314, and the plurality of barb structures 3314 are arranged along the circumference of the second through hole 3313 to realize alignment.
  • a plurality of position-limiting structures are distributed on the position-limiting plate 31 to cooperate with the position-limiting assembly 34, thereby fixing the push rod at different positions, So that the mower 100 is in different use states or convenient for storage.
  • the limiting plate 31 extends away from the cross bar mounting plate 331 to form a first limiting structure 311, a second limiting structure 312 and a third limiting structure 313, and the first limiting structure 311, the second limiting structure
  • the positioning structure 312 and the third limiting structure 313 are arranged at intervals along the circumferential direction. As shown in FIG.
  • the first limiting mechanism 311 is provided with a first limiting hole 3111
  • the third limiting mechanism 313 is also provided with a second limiting hole 3131
  • the push rod assembly 30 is fixed at the above-mentioned first position or the third position through the cooperation of the spring pin 341 on the limit assembly 34 with the first limit hole 3111 or the second limit hole 3131, so that the mower 100 is in the Working state or storage state.
  • the second limiting mechanism 312 is a baffle, and the spring pin 341 cooperates with the baffle so that the push rod assembly 30 is in the second position.
  • the limit assembly 34 includes a spring pin 341, a connecting piece 342, a spring 343, a column pin 344 and a wire rope 345, and one end of the spring pin 341 is connected to the
  • the connecting piece 342 is fixedly connected, the connecting piece 342 is provided with an oblong through hole 3421, the pin 344 passes through the push rod, and the rotating part 321 fixes the push rod to the limit plate 31, and the push rod can rotate along the pin 344,
  • the connecting piece 342 is provided with an oblong through hole 3421, and the pin 344 passes through the oblong through hole 3421, so as to prevent the connecting piece 342 from being affected when the angle of the push rod is adjusted.
  • the column pin 344 is fixedly connected with the push rod, the spring 343 is sleeved on the elastic pin 341, and is located between the connecting piece 342 and the gasket 3411 at the front end of the elastic pin 341, one end of the steel wire rope 345 is connected with the connecting piece 342, and the other end is connected with the transverse
  • the rod mounting plate 331 is connected, when the push rod needs to be rotated, by pulling the cross bar 33, the cross rod mounting plate 331 is driven to move upward along its second notch 322 on the push rod, so that the spring pin 341 is retracted in the push rod, so as to
  • the first limit structure 311, the second limit structure 312 or the third limit structure 313 are disengaged, so that the push rod can rotate freely.
  • the cross bar 33 When it is rotated to the desired position, the cross bar 33 is released, and the spring pin 341 automatically resets. , so as to cooperate with the first limiting structure 311 , the second limiting structure 312 or the third limiting structure 313 , so that the push rod assembly 30 is fixed at the first position, the second position or the third position.
  • the push rod assembly 30 can be fixed to the desired position with one hand, and the operator can pull the cross bar 33 standing on the left, right and rear sides of the mower 100, which is very convenient to operate.
  • annular boss 1011 is provided at the middle of the bottom of the tool receiving cavity 101, and the output shaft of the drive assembly 50 is located at the middle of the annular boss 1011 for easy installation.
  • Cutter assembly 40 The first grass-collecting passage 1012 is formed between the annular boss 1011 and the side wall of the cutter accommodation cavity 101, a second grass-collecting passage 1013 is formed between the tail plate 12 and the base plate 11, and the first grass-collecting passage 1012 is formed along it.
  • the depth of the ring gradually increases, and is connected with the second grass-collecting channel 1013 at the deepest point.
  • the grass pusher 100 is provided with two working modes: a grass storage mode and a grass breaking mode.
  • a grass storage mode When the pusher 100 was in the grass storage mode, the grass cut by the cutter assembly 40 was discharged into the grass collecting part 1001 installed at the rear of the pusher 100 along the second grass collection channel 1013 to realize grass storage;
  • the rear block 60 When the mower 100 is in the grass breaking mode, the rear block 60 needs to be installed, and the bottom of the tail plate 12 is provided with a joint 121 for connecting with the rear block 60, so that the rear block 60 is installed in the second grass collection channel 1013 and the connection of the cutter receiving chamber 101, thereby separating the second grass collecting passage 1013 from the cutter receiving chamber 101, so that the cutter receiving chamber 101 forms a complete chamber, and the cut grass cannot enter the second grass collecting passage In 1013, the cut grass can only be continuously cut by the blade in the cutter assembly 40 in the cutter receiving cavity 101, so as to realize the purpose of cutting the grass, and the chopped grass falls directly to the ground.
  • the rear block 60 includes a first baffle 61, a second baffle 62 and a fixed plate 63
  • the first baffle 61 is an arc baffle
  • the radian of the arc-shaped baffle matches the radian of the side wall of the tool receiving chamber 101, so as to facilitate the installation of the rear block 60
  • the second baffle 62 is fixedly connected to the first baffle 61 along the arc direction of the first baffle 61 and the second baffle 62 is matched with the first grass-collecting channel 1012
  • the second baffle 62 is bent away from the side of the first baffle 61 to the side away from the first baffle 61, so that The gap between the second baffle plate 62 and the first grass collection channel 1012 is completely blocked
  • the fixed plate 63 is fixed on the side of the first baffle plate 61 away from the second baffle plate 62 for fixing with the tail plate 12 connected to separate the second grass-collecting channel 1013 from the cutter accommodating chamber
  • the surface of the second baffle plate 62 is an arc surface, so as to prevent the cut grass from staying on the second baffle plate 62 and causing blockage, thereby Affect the effect of shredding grass, and can better seal the grass collecting channel, and a plurality of reinforcing ribs 622 are provided on the bottom surface of the second baffle 62 to improve the strength of the second baffle 62 so that it is not easily deformed.
  • the first baffle 61 , the second baffle 62 and the fixing plate 63 are integrally formed to enhance their structural strength.
  • the fixing plate 63 is provided with a plurality of limiting holes 631, and each limiting hole 631 is correspondingly provided with at least two hole walls with certain elasticity 632 , and at least two hole walls 632 are spaced from each other and arranged along the circumference of the limiting hole 631 , and are located at the bottom of the fixing plate 63 for fixed connection with the tail plate 12 .
  • the rear block 60 is fixedly connected to the tail plate 12 through the fixing piece 64, and the fixing piece 64 is matched with the limit hole 631.
  • the fixing piece 64 includes a head structure 641 and a tail structure 642.
  • the upper structure 641 is, for example, a spherical structure or an elliptical structure
  • the tail structure 642 is a self-tapping screw for connecting to the tail plate 12 .
  • the battery pack provides power for the mower 100 to drive the cutter assembly 40 to rotate, and a motor cover 116 is provided on the bottom of the battery pack accommodating chamber 115 near the side of the tailgate 12 to turn the motor 50 and electrical components are covered. It should be noted that there is a certain gap between the bottom surface of the battery pack accommodating cavity 115 and the base plate 11, so as to ensure that sufficient air flow enters the inside of the lawn mower.
  • the base plate 11 is provided with a motor mounting hole 1101 for When installing the motor 50, there is a curved structure between the bottom surface of the battery pack accommodating chamber 115 and the base plate 11 and the plane where the motor mounting hole 1101 is located, so as to prevent excessive dust from entering the interior of the motor 50, thereby affecting the motor. 50 for normal work.
  • the motor 50 is installed at the motor mounting hole 1101, and an air inlet channel 1152 is formed between the battery pack accommodating cavity 115 and the base plate 11, and the air inlet channel 1152 leads into the motor housing 116, so as to facilitate the push
  • the front end of the lawn mower 100 takes in the wind and passes it into the motor housing 116 to dissipate heat from the motor 50 and the electrical components.
  • the wind entering from the front end of the mower 100 will pass through at least one bend in the air inlet passage 1152. Part 1153, so as to prevent dust from entering the inside of the motor.
  • a cover 20 is provided on the chassis 10 , and a first air inlet 21 is provided on the front side of the cover 20 , from which the grass enters.
  • the wind inside the machine 100 enters the air inlet channel 1152 from the air inlet, and enters the motor casing 116 from the air outlet to dissipate heat from the motor 50 and electrical components.
  • the wind passing through the air inlet channel 1152 will pass through the cavity wall of the battery pack accommodating chamber 115, thereby cooling down the temperature of the battery pack in the battery pack accommodating chamber 115, so as to prevent the battery pack from malfunctioning due to overheating.
  • the end of the air inlet passage 1152 communicating with the inside of the motor housing 116 is close to the bottom of the motor 50 , that is, close to the plane where the motor mounting hole 1101 is located.
  • the housing of the motor 50 is also provided with a plurality of gap through holes 501
  • the bottom of the motor 50 is provided with an impeller 502
  • the impeller 502 is fixedly connected to the output shaft of the motor 50
  • the impeller 502 is close to the motor 50
  • a plurality of blades 503 are arranged on one side of the blade, and the blade wheel 502 is also used for installing the cutter assembly 40 .
  • the impeller 502 When the motor 50 drives the cutter assembly 40 to rotate, the impeller 502 also rotates with the cutter assembly 40, and the impeller 502 rotates to drive the flow of the air, so that the external air enters the pusher from the first air inlet 21 on the front side of the pusher.
  • At least one curved portion 1153 is provided in the air inlet passage 1152, and the wind entering from the front end of the mower 100 is At least one bent portion 1153 passes through the channel 1152 so as to prevent dust from entering the motor.
  • a plurality of slope structures 1102 are arranged at intervals along the circumference of the motor installation hole 1101. When dust enters the interior of the mower 100 with the flowing air, it can be discharged through the slope structures 1102 in time. , to prevent dust from accumulating inside the mower 100 or entering the inside of the motor 50, thereby affecting the normal operation of the motor.
  • a decorative cover 211 is also provided at the first air inlet 21, and honeycomb-shaped ventilation holes are provided on the decorative cover 211 to facilitate air intake, and the inner side of the decorative cover 211
  • An air filter 1154 is also installed to further filter the air entering the mower, thereby reducing the dust entering the mower.
  • the air filter 1154 is, for example, a dust-proof sponge.
  • the decorative cover 211 has two bosses 2111, which are used to insert into the two grooves 104 on the front side of the casing 20 during assembly, so that the decorative cover 211 can effectively press the air filter 1154, from the first
  • the wind that air inlet 21 enters can pass through air filter 1154 first, to realize its purification process, and dust can be filtered out by air filter 1154, avoids a large amount of dust to enter in the mower 100.
  • a second air inlet 1173 is also provided at the tail of the mower, and a plurality of baffles 1103 are arranged on the side of the motor mounting hole 1101 close to the tail plate 12.
  • a circle of plates 1104 are fixedly connected to form an electrical component installation place for installing electrical components, and a plurality of openings 1105 are provided on the baffle plate 1103 so as to facilitate the second entrance from the rear end of the mower 100.
  • the air inlet 1173 takes in air to dissipate heat from the motor 50 and electrical components.
  • a tail cap mount 117 is installed between the push rod mounts 114 at the rear of the mower 100, and a tail cap 118 is installed on the tail cap mount 117, and the tail cap 118 It is used to cover the grass collecting part 1001.
  • the tail cap 118 is connected to the tail cap mounting seat 117 through a rotating shaft 1171, and a spring member 1172 is sleeved on the rotating shaft 1171.
  • the tail cap 118 When the tail cap 118 needs to be uncovered, the tail cap 118 rotates around the rotating shaft 1171, and the spring The part 1172 is compressed, and when the tail cover 118 is released, under the elastic force of the spring part 1172, the tail cover 118 resets and is pressed against the grass collecting part 1001 under the elastic force.
  • the second air inlet 1173 is arranged at the rotating shaft 1171, so that the lawn pusher 100 can enter the air from the rear end, and in this embodiment, the motor housing 116 is far away from the battery.
  • a vent 1161 is provided on the top of one side containing the cavity 115, so that the wind entering from the second air inlet 1173 enters the motor casing 116 through the vent 1161, so as to realize the cooling effect on the motor 50 and electrical components.
  • the electrical components are located in the motor housing 116 and are close to the vent 1161 . After entering the second air inlet 1173 , the wind passes through the vent 1161 , passes through the electrical components, and then passes through the inside of the motor 50 . During the operation of the machine, the motor 50 and the electrical components will generate heat. Since the wind at the rear end will pass through the electrical components and then enter the motor, the heat generated by the electrical components and the motor 50 will be taken away during this process, avoiding Electrical components and motor 50 stop working due to overheating.
  • a raised plate 1174 is formed extending from the tail cover mounting base 117 to the second air inlet 1173 to partially cover the second air inlet 1173 .
  • the mower 100 includes a height adjustment structure 70, and different mowing heights can be realized through the gear adjustment, and the height adjustment device 70 is equipped with a plurality of different Each gear corresponds to a different mowing height, so that the mowing height can be adjusted according to the actual mowing process.
  • the height adjustment mechanism 70 includes a front wheel shaft 111, a rear wheel shaft 113, a gear plate 71, a limit rod 72 and a connecting rod 73, specifically, between the front wheel 102 and the front wheel shaft 111, and the rear wheel 103 Both are rotationally connected with the rear wheel shaft 113, the rear wheel shaft 113 is connected with the tail plate 12 through the first pressing plate 1002, and the front wheel shaft 111 is connected with the front end of the base plate 11.
  • the structure of the front wheel shaft 111 and the rear wheel shaft 113 are consistent, and the rear wheel shaft 113 is taken as an example for illustration.
  • Axle portion 1132 in the present embodiment, the axle portion 1132 is L-shaped, one end of the axle portion 1132 is fixedly connected with the main body portion 1131, and the other end is rotationally connected with the rear wheel 103, because the front axle 111 and the rear axle 113 are respectively connected to the base plate 11 is connected with the tail plate 12, that is, connected with the chassis 10 of the mower 100, and when the main part 1131 rotates to different positions, the chassis 10 is raised or lowered accordingly, so as to realize adjusting the height of the mower 100.
  • the shift plate 71 includes a connecting portion 711 and a shift portion 712, the shift portion 712 and the connecting portion 711 are integrally formed, for example, the connecting portion 711 and the rear wheel shaft One end of 113 is fixedly connected, and a plurality of gear grooves 713 are arranged on the side of the gear part 712 away from the connecting part 711, and the multiple gear grooves 713 communicate with each other through a slideway 714.
  • the gear part 712 is for example It is a fan-shaped structure, and a plurality of gear grooves 713 and slideways 714 are arranged along the circumferential direction of the fan-shaped structure.
  • the limit rod 72 matches the gear grooves 713 and can be switched through the slideways 714 to limit One end of the rod 72 is connected to the tail plate 12 through the second pressure plate 1003, and the other end is connected to an adjustment assembly 74 through the slideway 714. high.
  • One end of the connecting rod 73 is rotatably connected with the gear plate 71 through the first pin shaft 731, and the other end is rotatably connected with the connecting plate 1112 on the front wheel shaft 111 through the second pin shaft 732, and the connecting plate 1112 and the gear plate 71 are positioned at the push position. The same side of the lawn machine 100.
  • the adjustment assembly 74 includes an adjustment button 741, an adjustment rod 742 and a return spring 743, the adjustment button 741 is installed on the tail cover mounting seat 117, and the adjustment button 741 includes an adjustment connection Rod 7411 and button 7412, one end of the adjustment connecting rod 7411 is connected to the tail cover mounting seat 117 in rotation, and the other end is connected to the adjustment rod 742, and the button 7412 is located at the end of the adjustment connecting rod 7411 close to the connection adjustment rod 742, and protrudes from the tail
  • the cover mounting base 117 is convenient for the operator to operate, and a lever structure is formed between the adjustment connecting rod 7411, the button 7412 and the tail cover mounting base 117, so that it is relatively labor-saving during the pressing process.
  • the return spring 743 is sleeved on the adjusting rod 742. One end of the return spring 743 is against a platform structure 7421 on the adjusting rod 742, and the other end is against the tail plate 12. Under the action of the return spring 743, the pressed The adjustment button 741 returns to its original position.
  • the height adjustment mechanism also includes a reset member, in one embodiment of the present invention, the reset member is a tension spring 75, and the tension spring 75 is located on one side of the shift plate 71 , one end of which is connected to the tail plate 12, and the other end is fixedly connected to the extension spring hook 715 on the gear plate 71.
  • the reset member is a tension spring 75
  • the tension spring 75 is located on one side of the shift plate 71 , one end of which is connected to the tail plate 12, and the other end is fixedly connected to the extension spring hook 715 on the gear plate 71.
  • the tail plate 12 is provided with a first notch 122 close to the position plate 71, and the position plate 71 is partially located in the first notch 122, when the position plate When 71 rotates, the first notch 122 acts as a limit to the gear plate 71 to avoid excessive rotation.
  • the connecting rod 73 is also provided with a mounting groove 733 for installing the gear position indicator 75.
  • the gear position indicator 75 is, for example, a fan-shaped structure, and its surface is an arc surface 751, and the arc surface 751 is provided with a gear position mark. , such as 1, 2, 3... or I, II, III..., or similar signs.
  • the first column pin 752 and the second column pin 753 are respectively fixed on both sides of the gear indicator 75, and the first column pin 752 is connected with the installation groove 733,
  • the second column pin 753 is connected to the semi-circular groove 754 on the base plate 11 by a pressure plate.
  • an identification hole 23 is provided on the cover 20, and the identification hole 23 is located above the gear position indicator plate 75, so that the operator can observe the gear position indicator plate 75 from the identification hole 23, so that it is adjusted.
  • the use process is very convenient, and when the adjustment component adjusts the cutting height of the mowing machine Afterwards, the cutting height can be displayed in the marking hole 23.
  • the gear adjustment makes the height lowering process as follows: press the adjustment button 741, so that the adjustment rod 742 descends to drive the limit rod 72, so that the limit rod 72 is recessed from a certain gear position.
  • the slot 713 breaks away and enters the slideway 714.
  • the front wheel shaft 111 and the rear wheel shaft 113 lose the position-limiting effect, and the operator presses down on the mower to make the gear plate 71 rotate, thereby driving the front wheel shaft 111 and the rear wheel shaft 113. , to lower the height of the chassis 10.
  • the limit lever 72 slides in the slideway 714, and the tension spring 75 is stretched to play a buffer role.
  • the adjustment rod 742 When turning to the desired specific gear, release the adjustment button 741 , under the action of the back-moving spring 743, the adjustment rod 742 resets, thereby driving the limit rod 72 to enter another gear groove 713, and realize the limit, so that the front wheel shaft 111 and the rear wheel shaft 113 are locked to realize height adjustment.
  • the gear adjustment makes the height promotion process as follows: press the adjustment button 741, so that the adjustment rod 742 descends to drive the stop rod 72, so that the stop rod 72 breaks away from a certain gear groove 713 and enters the slideway 714.
  • the front wheel shaft 111 and the rear wheel shaft 113 lose the position-limiting effect, and the shift plate 71 is driven to rotate under the elastic force of the elongated extension spring 75, thereby driving the front wheel shaft 111 and the rear wheel shaft 113 to raise the height of the chassis 10, when When turning to the specific gear needed, release the adjustment button 741, and under the action of the return spring 743, the adjustment rod 742 resets, thereby driving the limit rod 72 to enter another gear groove 713, and realize the limit, so that The front axle 111 and the rear axle 113 are locked for height adjustment.
  • a first through hole 24 is provided on the casing 20 to expose the chamber of the battery pack accommodating cavity 115, and the battery pack is installed in the chamber, thereby facilitating replacement of the battery pack.
  • the shell 20 is provided with a flip cover installation part, and a flip cover structure 80 is installed on the flip cover installation part, and the flip cover structure 80 is used to cover the first through hole 24, so as to close the chamber of the battery pack accommodating chamber 115, which is beneficial to protect the inside of the chamber. battery pack.
  • the flip structure 80 includes a flip fixing base 81 and a flip 82, and a plurality of buckles 811 are arranged on one side of the inside of the flip fixing base 81, so as to facilitate the connection with the flip mounting part.
  • Draw-in slot 812 is matched, so that flip cover fixing seat 81 is installed on the casing 20, then passes through the third through hole 813 on the other side of flip cover fixing seat 81 by bolt, to flip cover fixing seat 81 and casing 20 are fixed
  • the front end of the cover fixing seat 81 just presses the decorative cover 211, so that the decorative cover 211 is completely fixed.
  • a swing arm installation groove 814 is provided on the side where the flip cover fixing seat 81 is provided with the third through hole 813 for connecting the flip cover 82.
  • a swing arm structure 821 is installed on one side of the flip cover 82.
  • the swing arm structure 821 includes a swing arm 8211 and rotating shaft 8212, one end of the swing arm 8211 is fixedly connected to the inner side of the flip cover 82, and the other end is fixedly connected to the rotating shaft 8212.
  • the rotating shaft 8212 of the swing arm structure 821 is installed in the swing arm installation groove 814, and is connected in rotation with each other, that is, the flip cover 82 can rotate around the rotation axis 8212.
  • the installation process of the flip structure 80 is as follows: first install the swing arm structure 821 on the flip cover 82 in the swing arm installation groove 814 to realize the installation between the flip cover 82 and the flip cover fixing seat 81, and then install the swing arm structure 821 in the flip cover fixing seat 81.
  • the buckle 811 is inserted into the slot 812 on the case 20, and is aligned with the threaded hole 815 on the case 20 through the third through hole 813 on the cover fixing seat 81 and fixed by bolts.
  • a plurality of reinforcing rib structures 83 are provided on the inner side of the flip cover 82 to enhance the strength of the flip cover structure 80 .
  • the push rod assembly By setting multiple limit structures on the limit plate, installing the push rod on the limit plate, and controlling the cooperation between the push rod and the limit structure through the cross bar, the push rod assembly can be fixed at different positions place, and the push rod assembly can be fixed to the desired position with one hand, and the operator can pull the cross bar at any position beside the mower, which is very convenient to operate.
  • the rear block By installing the rear block at the grass collection passage at the bottom of the pusher, and the surface of the second baffle of the rear block is an arc surface, to prevent the cut grass from staying on the second baffle and causing blockage, thereby Affect the effect of breaking grass, and can better seal the grass collecting channel, and are also provided with reinforcing ribs and a plurality of protrusions on the bottom of the fixing plate, so as to improve the structural strength of the rear blocking block.
  • each limit hole is correspondingly provided with at least two hole walls with a certain elasticity, so that the disassembly process is more convenient, and the positioning is accurate after loading, and It can ensure that the rear block will not loosen under the condition of impact force.
  • the air inlet channel is provided with at least one curved part, and a plurality of slope structures are provided at intervals in the circumferential direction of the motor mounting hole to prevent dust from entering the motor.
  • Adjust the height of the chassis by switching gears so as to adapt to different lawn types, and adjust the height of the chassis according to the required cutting height, and at the same time avoid being entangled by weeds and other objects, making the height adjustment safer and more obvious. It is convenient, and by setting an identification hole on the top of the cover, the gear position of the mower indicated by the gear position indicator board can be checked in time and effectively through the identification hole, so as to adjust.
  • the flip structure on the mower is fixed on the casing through the flip fixing seat, the structure is simple, the fixing is reliable, and the installation process is simple and convenient.
  • this embodiment also provides a cutter assembly 40 applied to a mower 100 , and the cutter assembly 40 adopts a double-layer blade structure.
  • Cutter assembly 40 is accommodated in the casing of mower, and forms cutting space in housing, and this cutter assembly 40 comprises the first blade 41 (grass collection blade) and the second blade 42 that are assembled on the knife seat 43 on the knife seat 43 (grass shredding blade).
  • the above-mentioned first blade 41 includes a first middle part 413 arranged in a flat plate shape and a first cutting part 414 arranged at both ends of the first middle part 413, the first middle part 413 can be, for example, thin
  • the long rectangular shape is used to be installed on the knife seat 43.
  • the first cutting part 414 is twisted relative to the middle part.
  • One end of the direction indicated by the indicator mark 415) is provided with a first cutting edge, which is used to cut the blade of grass and cut the blade of grass into debris. Grass collection slope for grass collection.
  • the above-mentioned first blade 41 has a first installation hole 412 that runs through the first blade 41 and is located at the center.
  • the first positioning hole 411 The first installation hole 412 and the first positioning hole 411 are arranged along the longitudinal direction of the first blade 41 (as shown in FIG. 45 ), and of course the first installation hole 412 and the first positioning hole 411 can also be arranged
  • the longitudinal direction is arranged in a direction with a certain included angle.
  • the first positioning hole 411 can be, for example, an arrow hole with a fool-proof function, and the two arrow holes point in opposite directions, so that if the first blade 41 is reversed, it cannot be assembled, and reverse assembly can be avoided.
  • the arrow holes point to the blade rotation direction of the first blade 41 in the circumferential direction, and the two arrow holes are symmetrical to the center of the first installation hole 412, and there are two arrow bosses on the knife seat 43 (see Figure 50 and Figure 51) , the two arrow bosses respectively match with the two arrow holes on the first blade 41 to realize the positioning of the first blade 41 .
  • the arrow holes on both sides indicate opposite directions, but have the same size.
  • the first blade 41 can meet the requirements of dynamic balance and static balance in principle. It should be pointed out that the arrow holes can also be designed to be asymmetrical to the center.
  • a rotation direction indicator 415 is provided on the bottom surface of the first blade 41 (that is, on the side surface away from the knife seat 43), and the rotation direction indicator 415 includes two, respectively with the first The center of a mounting hole 412 is symmetrically arranged. It should be noted that the direction of the arrow hole can be towards the blade rotation direction of the first blade 41, and the direction of the arrow hole of the first blade 41 has the function of indicating the rotation direction of the blade.
  • the rotation direction indicator 415 is not provided on the blade 41 .
  • the second blade 42 is different from the first blade 41 in shape and structure.
  • the second blade 42 includes a second intermediate portion 423 arranged in a flat plate and a second cutting portion 424 disposed at two ends of the second intermediate portion 423.
  • the second intermediate portion 423 may be elongated, for example, in a rectangular shape, and is used to be mounted on a knife.
  • the second cutting part 424 is bent and arranged on the side of the second middle part 423 facing the knife seat 43, the second cutting part 424 is bent toward the side close to the knife seat 43, and the second cutting part 424 is away from the second
  • One end of the middle part 423 is arranged parallel to the second middle part 423, that is, the second cutting part 424 is bent towards the side close to the knife seat 43, and one end of the second cutting part 424 towards the blade rotation direction is provided with a second cutting edge, For cutting grass blades and cutting grass blades into chips.
  • the above-mentioned second blade 42 has a second mounting hole 422 that runs through the second blade 42 and is located at the center.
  • the second positioning hole 421 are arranged along a direction that forms a certain angle with the longitudinal direction of the second blade 42 (as shown in FIGS. 47 and 48 ), so that when the second blade 42 and the first blade 41 When assembled on the knife seat 43 , the included angle between the second blade 42 and the first blade 41 will be the same.
  • the second installation hole 422 and the second positioning hole 421 can also be arranged along the longitudinal direction of the second blade 42 .
  • the size of the second mounting hole 422 of the second blade 42 is larger than the size of the first mounting hole 412 of the first blade 41, and the size of the second positioning hole 421 of the second blade 42 is larger than that of the first blade 41.
  • the above-mentioned knife seat 43 includes a knife seat body 437 and a central boss 438 arranged at the center of the top surface of the knife seat body 437, and the diameter of the central boss 438 gradually decreases from the bottom end to the top end. small and then kept constant.
  • the bottom surface (blade assembly surface) of the knife holder body 437 is provided with a first step boss and two second step bosses, the first step boss is arranged at the center position of the bottom surface of the knife holder body 437, and the two second step bosses
  • the steps are symmetrically arranged with the center of the boss of the first step. It should be noted that, in some embodiments, only one second stepped boss may be provided on the bottom surface of the knife seat body 437, and the second stepped boss is located at a side of the first stepped boss.
  • the above-mentioned first stepped boss includes a first boss 435 and a second boss 432 coaxially arranged on the bottom surface of the tool holder body 437, and the first boss 435 and the first mounting hole 412 matches, the second boss 432 matches the second mounting hole 422, the second boss 432 is located between the first boss 435 and the knife holder body 437, the second boss 432 and the first boss 435 are in the knife
  • the projection on the bottom surface of the seat body 437 is a nesting relationship, and the outline of the first boss 435 is located within the outline of the second boss 432 .
  • the height of the first boss 435 is defined as a first height
  • the height of the second boss 432 is defined as a second height, wherein the first height is greater than the second height.
  • the range of the first height is 5-8mm, such as 5mm, 6mm, 7mm or 8mm
  • the range of the second height is 2-4mm, such as 2mm, 3mm, 4mm.
  • the second stepped boss includes a second positioning boss 431 that is coaxially arranged on the bottom surface of the tool holder body 437 and matches the second positioning hole 421 and is aligned with the first positioning hole 411.
  • the matching first positioning boss 434, the second positioning boss 431 is located between the first positioning boss 434 and the knife seat body 437, and the second positioning boss 431 and the first positioning boss 434 are on the bottom surface of the knife seat body 437
  • the projection on is a nesting relationship, and the contour of the first positioning boss 434 is located within the contour of the second positioning boss 431 .
  • the second positioning boss 431 and the second boss 432 are used as the installation structure of the second blade 42 for installing the second blade 42; the first positioning boss 434 and the first boss 435 are used as the installation structure of the first blade 41 for The first blade 41 is installed.
  • the first positioning boss 434 can be, for example, an arrow boss or a boss with a fool-proof function in other suitable shapes, and two arrow bosses arranged symmetrically about the center of the first boss 435 are more conducive to rotation.
  • the torque of the output shaft 51 is transmitted to the blades. It should be noted that the matching between any of the above-mentioned mounting holes and the corresponding positioning boss means that the two have the same height and match in shape.
  • two support bosses 433 are provided on the edge of the blade assembly surface of the knife seat 43, and the two support The boss 433 is symmetrically arranged with respect to the center of the knife seat 43 .
  • the supporting boss 433 has an L-shaped structure, and the supporting boss 433 has a supporting platform 436 for supporting the first blade 41.
  • the height of the supporting platform 436 is the same as that of the second boss 432 and the second positioning boss 431, thereby When the first blade 41 is assembled on the knife seat 43 , both ends of the first middle portion 413 of the first blade 41 can be supported on the supporting platform 436 of the supporting boss 433 .
  • only one supporting boss 433 may be provided on the edge of the blade assembly surface of the blade seat 43 .
  • the center of the above-mentioned tool holder 43 is provided with a stepped output shaft mounting hole that runs through the central boss 438 and the tool holder body 437 , from one end close to the rotation output shaft 51 to farther away from the rotation output shaft 51
  • the output shaft mounting hole sequentially includes a first aperture section 4303, a second aperture section 4302 and a third aperture section 4301, which are coaxial and successively reduced in diameter.
  • the first aperture section 4303 and the second aperture section 4302 are used to rotate the output shaft 51
  • the third aperture section 4301 is used for fastening bolts 45 (fasteners) to pass through
  • fastening bolts 45 fasteners
  • the fastening bolt 45 is fixed by the bottom end of the output shaft mounting hole through the internal threaded hole of the free end of the rotating output shaft 51 after the third aperture section 4301, so as to The cutter assembly 40 is assembled on the rotary output shaft 51 .
  • the bottom of the second aperture section 4302 (the end close to the third aperture section 4301) is provided with a driven transmission structure, and the free end of the rotary output shaft 51 is provided with an active transmission structure (not marked).
  • the fastening bolt 45 is inserted into the bottom of the second aperture section 4302
  • the driven transmission structure 439 in the second aperture section 4302 and the active transmission structure of the rotation output shaft 51 form a transmission fit, and with the rotation of the rotation output shaft 51, the knife
  • the seat 43 drives the first blade 41 and the second blade 42 to rotate for mowing.
  • the active transmission structure of the rotation output shaft 51 can be, for example, a notch provided at the free end of the rotation output shaft 51 , while the driven transmission structure is a protruding block 309 provided at the bottom of the second aperture section 4302 matching the notch. It can be understood that, in other embodiments, the active transmission structure and the driven transmission structure can be any structure that can realize the transmission cooperation, such as the transmission cooperation of the driving ratchet and the driven ratchet, the transmission cooperation of the driving convex tooth and the slave Movable protruding teeth, or protrusions protruding in the opposite direction for transmission cooperation, etc.
  • the positioning installation holes (second installation holes 422 and second positioning holes 421) on the second blade 42 are first assembled after passing through the installation structure of the first blade 41.
  • the first blade 41 is assembled on the installation structure of the first blade 41, the first blade 41 is stacked on the second blade 42, and mutually misplaced, that is, the first The blade 41 and the second blade 42 are arranged at a certain angle.
  • the first blade 41 and the second blade 42 can complete two cuts to the blade of grass, and the cutting edge of the first blade 41 is positioned at the place ahead of the cutting edge of the second blade 42.
  • the first blade 41 first cuts the blade of grass, and then The second blade 42 cuts the blade of grass again, so as to achieve a better grass breaking effect.
  • the position of the first blade 41 can remain unchanged due to the large size of the positioning and installation structure of the second blade 42 , which can play a role in supporting the first blade 41 .
  • the support boss 433 is provided on the knife seat 43 , the support boss 433 can be positioned and installed with the second blade 42 while the first blade 41 plays a supporting role.
  • the assembly and replacement of the double blades can be realized more conveniently by setting the step-shaped blade positioning mounting boss on the blade seat.
  • the cutter assembly 40 of the present invention can avoid reverse installation of the blade through the fool-proof design on the cutter seat and the blade. By arranging the step-shaped blade positioning mounting boss on the knife seat, when the first blade is assembled alone, it can play a role of supporting the first blade, and the position of the first blade can remain unchanged.
  • this embodiment also discloses another lawn mower 100 , which may include a push rod assembly 30 , a power head 900 , a chassis 10 , traveling wheels, and a grass collecting component 1001 .
  • the push rod assembly 30 is obliquely disposed on the chassis 10 , and the push rod assembly 30 can extend upward from the rear of the chassis 10 .
  • the power head 900 may be disposed on the chassis 10 .
  • the walking wheels can be arranged at the bottom of the chassis 10, and the grass collecting part 1001 for collecting the broken grass blades is arranged at the rear of the chassis 10.
  • the power head 900 is a replaceable component that can replace a small internal combustion engine and can be applied to a variety of equipment, such as outdoor power equipment, including lawn pushers, snow plows, cleaning machines, etc. machines, scarifiers, etc.
  • equipment such as outdoor power equipment, including lawn pushers, snow plows, cleaning machines, etc. machines, scarifiers, etc.
  • the specific structure and function of the power head 900 will be described in detail by taking a lawn pusher as an example, but it should not be limited thereto.
  • an air outlet 105 , an impeller 502 and a cutter assembly 40 are provided at the bottom of the chassis 10 .
  • the output shaft of the motor in the power head 900 can extend to the bottom of the chassis 10 , the impeller 502 and the cutter assembly 40 can be connected with the output shaft of the motor, and the impeller 502 can be located above the cutter assembly 40 .
  • the air outlet 105 can be arranged on the driving assembly, and the driving assembly is a motor.
  • the power head 900 may include a first housing 911 , a second housing 912 and a cover 913 .
  • the first housing 911 and the second housing 912 are arranged opposite to each other, and the first housing 911 and the second housing 912 are arranged left and right, for example, to form a housing.
  • the structures of the first housing 911 and the second housing 912 may be the same.
  • the cover 913 is disposed on the top of the first housing 911 and the second housing 912 , that is, above the housings.
  • the cover 913, the first housing 911 and the second housing 912 may form a first cavity.
  • the first housing 911 and the second housing 912 are respectively provided with external air inlet holes 914, for example, the external air inlet holes 914 are arranged at the rear ends of the first housing 911 and the second housing 912, and the external air inlet holes 914 Can be oriented in different directions.
  • the external air intake hole 914 By setting the external air intake hole 914, the external cooling airflow can enter the first cavity through the external air intake hole 914, that is, the external cooling airflow enters the inside of the power head 900, thereby realizing heat dissipation of the control assembly and the driving assembly.
  • a motor seat 915 is provided at the bottom of the first housing 911 and the second housing 912 , the air outlet 105 is provided on the motor seat 915 , and a motor is provided on the motor seat 915 , that is, the motor is located in the power head 900 .
  • the output shaft 51 of the motor extends to the outside of the power head 900 through the through hole in the center of the motor base 915 .
  • a windshield 9131 is also provided on the cover 913, and the windshield 9131 is vertically arranged inside the cover 913.
  • the cover 913 is arranged on the first shell
  • the wind deflector 9131 is located in the power head 900 , and the wind deflector 9131 contacts the tops of the first housing 911 and the second housing 912 .
  • the windshield 9131 prevents the direction of travel of the external air flow, so that the cooling air flow can only flow according to the preset path, thereby controlling the power head 900.
  • the external air intake hole 914 can be arranged at the left rear of the first casing 911, and is inclined toward the rear and downward, so that when the mower 100 is placed on the ground and exposed to rain, the rainwater cannot enter the wind from the outside.
  • a hole 914 enters the interior of the powerhead 900 .
  • a control assembly 918 is provided on the top of the first housing 911 and the second housing 912 , and the control assembly 918 is used to control the motor.
  • Internal air inlet holes 920 are also formed at both ends of the control assembly 918. Through the internal air inlet holes 920, the cooling airflow can flow into the bottom of the control assembly 918, thereby dissipating heat from the cooling fins and control elements on the control assembly 918.
  • the first housing 911 and the second housing 912 are further provided with fixing buckles 919 , for example, the fixing buckles 919 are disposed on both sides of the control assembly 918 , and the height of the fixing buckles 919 protrudes beyond the control assembly 918 .
  • the top of the fixing buckle 919 has a bent part, and the bent part is in contact with the top surface of the control component 918, so that the control component 918 can be fixed.
  • Component 918 Component 918.
  • a battery pack cavity 917 is also provided in front of the control assembly 918 , and the battery pack can be placed in the battery pack cavity 917 to provide power to the power head 900 .
  • the control assembly 918 may include a housing 934 and a fixing seat 935 .
  • the housing 934 is arranged on the fixing seat 935, and the heat sink 936 and the control element (not shown in the figure) are arranged on the housing 934.
  • the cooling fins 936 and control elements may be towards the interior of the housing.
  • both the first housing 911 and the second housing 912 are provided with a support body 922, and the support body 922 on the first housing 911 and the second housing 912
  • the supporting body 922 on the top forms a supporting base, and the control assembly 918 can be fixed on the supporting base.
  • the support seat is for example a hollow rectangle, that is to say the center of the support seat includes a through hole, and the control assembly 918 is fixed on the outer periphery of the through hole, that is, the fixed seat 935 is fixed on the outer periphery of the through hole, while the control assembly 918 is fixed on the outer periphery of the through hole.
  • the heat sink 936 and the control element face the through hole, and the housing 934 of the control assembly 918 faces the cover 913 .
  • the fixing buckle 919 is arranged on both sides of the support base. When the control assembly 918 is arranged on the support base, the bent part on the fixing buckle 919 can be leaned against the top of the control assembly 918, that is, the fixing buckle 919 It leans against the fixing base 935 to fix the control assembly 918 .
  • an internal air inlet hole 920 is provided on the side of the support base, and an air guide plate 921 is provided inside the support base, that is, the air guide plate 921 is connected to the internal air intake hole 920, and the air guide plate 921 is inclined Extends to the inside of the support base.
  • the cooling fins 936 and control elements on the control assembly 918 can be located on the air deflector 921 , that is to say, the cooling fins 936 can be close to the inner air inlet 920 , so when the cooling air flows through the inner air inlet 920 , the air deflector 921 The cooling airflow can be guided, so that the cooling airflow can fully contact the cooling fin 936 and the control element, thereby speeding up the cooling of the cooling fin 936 and the control element.
  • internal air intake holes 920 are provided on both sides of the control assembly 918, so that the control assembly 918 can be dissipated from two directions, and the heat dissipation speed of the control assembly 918 can be accelerated.
  • the air deflector 921 on the 912 is not connected, that is, a ventilation gap 9211 is formed between the first housing 911 and the air deflector 921 on the second housing 912, so the cooling air can pass through the ventilation between the air deflectors 921
  • the gap 9211 flows to the bottom of the first case 911 and the second case 912 .
  • only one wind deflector 921 can be provided in the support seat, for example, the right wind deflector 921 in FIG.
  • the area of the ventilation gap 9211 is increased, so that more external cooling airflow can flow to the first casing 911 and the second casing 912 bottom of.
  • FIG. 62 only shows a schematic diagram of the interior of the first housing 911 .
  • a supporting body 922 is disposed on the first housing 911 , and fixing buckles 919 are disposed on both sides of the supporting body 922 , and the fixing buckles 919 protrude from the supporting body 922 .
  • An internal air inlet hole 920 is provided at one end of the support body 922 , and the internal air inlet hole 920 can be close to the cooling fin 936 on the control assembly 918 , and an air deflector 921 is provided inside the support body 922 .
  • the wind deflector 921 can form a second cavity with the control assembly 918, and the cooling air flow enters the second cavity through the internal air inlet hole 920.
  • the control element and the cooling fin 936 can be located in the second cavity, so the cooling air flow can be connected with the cooling fin 936. Make full contact with the control components, thereby speeding up the cooling of the heat sink 936 and the control components.
  • a motor base 915 is disposed on the bottom of the first housing 911 , and a motor 130 is disposed on the motor base 915 .
  • the motor base 915 also has an air outlet hole 105 .
  • the height between the control assembly 918 and the motor 130 can be greater than 100 mm, for example, 150 mm. By increasing the height between the control assembly 918 and the motor 130, the cooling airflow after contacting the control assembly 918 can be cooled again, thereby cooling the motor. 130 cooling effect.
  • FIG. 63 shows a schematic diagram of the positions of the first cavity 931 , the second cavity 932 and the third cavity 933 .
  • the area between the tops of the first housing 911 and the second housing 912 and the cover 913 is defined as the first cavity 931
  • the area between the control assembly 918 and the wind deflector 921 is defined as the second cavity.
  • the cavity 932 defines the area between the motors 130 below the wind deflector 921 as the third cavity 933, that is to say, the first cavity 931 is located above the second cavity 932, and the second cavity 932 is located in the third cavity. above the cavity 933 .
  • the first cavity 931 and the second cavity 932 may communicate through the internal air inlet hole 920 , and the second cavity 932 and the third cavity 933 may communicate through the ventilation gap 9211 .
  • the wind speed of the cooling air in the second cavity 932 is greater than the wind speed in the third cavity 933 .
  • the cooling air flows through the external air inlet 914 (shown in FIG. 57 ) into the first cavity 931. Due to the effect of the windshield 9131, the windshield 9131 is vertically arranged on the first cavity.
  • the top of the housing 911 and the second housing 912 so that the cooling air can only enter the second cavity 932 through the internal air inlet hole 920, because the cooling fins 936 on the control assembly 918 and the control elements are located in the second cavity 932, so the cooling airflow can fully contact the cooling fin 936 and the control element, so that the cooling fin 936 and the control element can be quickly cooled.
  • the ventilation gap 9211 between the air deflectors 921 enters the third cavity 933, and at the same time, the height of the control components 918 and 52 is greater than 100mm, so the temperature of the cooling airflow can be reduced , so when the cooling air flows out of the outside through the air outlet 105, the cooling air can first pass through the inside of the 52, thereby cooling the 52, that is, absorbing the heat generated during the working process of the 52, so that the heat dissipation of the 52 can be accelerated.
  • the arrows in FIG. 63 indicate the flow path of the cooling air flow.
  • control assembly 918 in order to prevent other debris such as grass clippings and dust from entering the interior of the power head 900 with the cooling airflow, causing damage to the power head 900, the control assembly 918 can also be placed on the outside of the external air intake hole 914 A filter element (not shown in the figure) is set in it.
  • the impeller 502 rotates and generates suction, and the external cooling air flow enters the inside of the power head 900 from the external air inlet hole 914 under the suction of the impeller 502, that is, enters the first cavity 931 Inside, due to the blocking effect of the windshield 9131, the cooling airflow entering the first cavity 931 enters the second cavity 932 through the internal air inlet hole 920 and the wind deflector 921, and because the cooling fin 936 is located in the second cavity 932 Therefore, the cooling air flow can fully contact with the heat sink 936 and quickly dissipate heat from the heat sink 936 .
  • the cooling air flow enters the third cavity 933 through the ventilation gap 9211.
  • the cooling air flow can be cooled, and then the cooling air flow enters the third cavity 933. 52, thereby cooling 52, and finally flows out through the air outlet hole 105 at the bottom of the motor base 915.
  • the heat inside the control components 918 and 52 will be taken away, so that the power head 900 can work at a relatively stable temperature, thereby improving the working efficiency of the mower 100 .
  • both the first housing 911 and the second housing 912 include a battery pack cavity 917 , and the battery pack cavity 917 may be located at the front end of the power head 900 .
  • the battery pack 940 may be disposed in the battery pack chamber 917, and the battery pack 940 may also be defined as an energy component.
  • the battery pack 940 contains a plurality of battery cells, and the battery cells are arranged along the longitudinal direction of the battery pack. In other embodiments, the battery pack can have different shapes, and the cells can also be arranged in other directions. Depending on the number and combination of cells, the battery pack can output different voltages. In this embodiment, the battery pack 940 is, for example, an 80V battery pack.
  • battery packs with other voltages are still within the protection scope of this embodiment.
  • there are at least two battery pack cavities 917 so there are at least two battery packs 940 , and the two battery packs 940 are arranged side by side along the transverse direction of the power head 900 .
  • the cover body 913 may include a fixed cover 938 and a flip cover 939 .
  • the flip cover 939 is rotatably arranged on the fixed cover 938 , and the flip cover 939 is arranged at the front end of the fixed cover 938 .
  • the fixed cover 938 may include an opening area 9381 and a covering area 9382 , and the opening area 9381 is located at the front end of the covering area 9382 .
  • the flip cover 939 may be located on the open area 9381 .
  • the opening area 9381 can be disposed on the outer periphery of the battery pack cavity 917 , and when the flip cover 939 is closed on the fixed cover 938 , the flip cover 939 can cover the battery pack 940 , thereby protecting the battery pack 940 .
  • the overlay 9382 can be located on the control assembly 918 (shown in FIG. 63 ), ie, the overlay 9382 completely covers the control assembly 918 .
  • the front end of the opening area 9381 is also provided with a lower buckle 941, and an elastic member 942 is arranged inside the lower buckle 941. The elastic member 942 is closer to the battery pack cavity 917 than the lower buckle 941, and the elastic member 942 can protrude from the fixed cover 938. .
  • an installation hole may be provided inside the lower buckle 941, and then the elastic member 942 may be arranged in the installation hole, and the elastic member 942 protrudes from the installation hole.
  • the central axis of the elastic member 942 and the central axis of the lower buckle 941 may coincide, and the central axes of the elastic member 942 and the lower buckle 941 are located on the central axis of the opening area 9381 , for example.
  • the elastic member 942 is, for example, a rubber pad.
  • the cover body 913 may also only include the flip cover 939 , that is, the flip cover 939 is rotatably disposed on the tops of the first housing 911 and the second housing 912 .
  • the flip cover 939 can be rotatably arranged on the chassis 10, and the flip cover 939 can also cover the battery pack 940 , so that the structure of the mower 100 can be simplified.
  • an upper buckle 943 matching with a lower buckle 941 is provided inside the flip cover 939 (the side of the flip cover 939 facing the battery pack chamber 917), and the upper buckle 943 is arranged on the upper buckle
  • the inner side of 943 is also provided with limiting ribs 944 .
  • the limiting rib 944 corresponds to the elastic member 942 .
  • the elastic member 942 When the upper buckle 943 is buckled into the lower buckle 941 , the elastic member 942 generates an elastic force on the limiting rib 944 , thereby achieving a flexible connection between the flip cover 939 and the fixed cover 938 .
  • the elastic force of the elastic member 942 on the limiting rib 944 is smaller than the fastening force between the upper buckle 943 and the lower buckle 941 , so as to prevent the upper buckle 943 from detaching from the lower buckle 941 .
  • the amount of compression of the elastic member 942 can be greater than or equal to the gap between the upper buckle 943 and the lower buckle 941, so as to ensure that the gap between the upper buckle 943 and the lower buckle 941 is small or there is basically no gap, so when transporting or using the During the process of pushing the lawn machine 100, the abnormal sound of the lawn machine 100 can be reduced.
  • the limiting rib 944 can also be arranged on the front end of the opening area 9381 , and the elastic member 942 can also be correspondingly arranged on the flip cover 939 , that is to say, the positions of the limiting rib 944 and the elastic member 942 are exchanged.
  • the upper buckle 943 and the limiting rib 944 are located at the front end of the flip cover 939 , and a hinge 945 is provided at the rear end of the flip cover 939 .
  • the front end of the flip cover 939 may be the end close to the lower buckle 941
  • the thickness of the flip cover 939 may be the end away from the lower buckle 941 .
  • one end of the hinge 945 is fixed on the flip cover 939
  • the other end of the hinge 945 is provided with a hinge hole 946 .
  • the hinge hole 946 can be connected with the pivot 947 on the cover area 9382 , that is, the flip cover 939 is fixed on the pivot 947 through the hinge 945 , so the flip cover 939 is rotatably arranged on the fixed cover 938 .
  • two hinges 945 are provided at the rear end of the flip cover 939
  • two pivots 947 are correspondingly provided on the fixed cover 938 .
  • the hinge 945 and the pivot 947 can be respectively located on the side of the flip cover 939 and the fixed cover 938 facing the battery pack cavity 917 .
  • the power head of this embodiment may include a casing, the casing includes a first casing and a second casing that are arranged symmetrically, and external air inlet holes are provided on the first casing and the second casing.
  • a cover is provided on the casing, and the first casing, the second casing and the cover form a first cavity, and cooling air flows into the first cavity through the external air inlet hole.
  • a support base is also provided on the housing, and internal air inlet holes are provided at both ends of the support base.
  • the housing also includes a wind guide plate, which extends to the inside of the support base, and the wind guide plate is connected to the inside of the support base.
  • the control assembly and the air deflector can form the second cavity, and the cooling fins and control elements on the control assembly are also located in the second cavity and enter the first cavity
  • the cooling air in the body can enter the second cavity through the internal air inlet, and at the same time, due to the function of the air deflector, the cooling air can fully contact the heat sink and control components, which is conducive to rapid heat dissipation of the control components and heat sink.
  • the drive assembly and the wind deflector form a third cavity. Since the wind deflector forms a ventilation gap, the second cavity and the third cavity can be communicated.
  • the cooling air flow can enter the third cavity.
  • the height from the motor to the control assembly can be greater than 100mm, so the cooling airflow passing through the control element and the heat sink can be fully cooled, and then the cooling airflow enters the inside of the drive assembly, thereby realizing the heat dissipation of the drive assembly, and the cooling airflow finally passes through
  • the air outlet holes flow out to the outside, so that the power head is in a relatively stable working temperature, so the working efficiency of the mower can be improved.

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Abstract

一种刀具组件、动力头及推草机,刀具组件(40)包括刀座(43),刀座(43)的刀片装配面上设置有第一凸台(435)和第二凸台(432),第一凸台(435)的高度为第一高度,第二凸台(432)的高度为第二高度;第一刀片(41),具有与第一凸台(435)相匹配的第一安装孔(412);第二刀片(42),具有与第二凸台(432)相匹配的第二安装孔(422);第一刀片(41)安装于第一凸台(435),第二刀片(42)安装于第二凸台(432)。通过在刀座(43)上设置台阶状的刀片定位安装凸台,可以更方便的实现双刀片的装配和更换。

Description

一种刀具组件、动力头及推草机 技术领域
本发明属于园林工具技术领域,具体涉及了一种刀具组件、动力头及推草机。
背景技术
随着电动工具技术的不断发展,割草机也得到了越来越广泛的应用。推草机主要应用在园林装饰修剪、草地绿化修剪、城市街道、绿化景点、田园修剪、田地除草,特别是公园内的草地、草原、足球场等其它用草场地。
以割草机为例,为了获得更好的碎草性能,在推草机装置了双层刀片,两个刀片错开一定的角度,目的是让草能够从高到低切割两次,这样割下来的草削更细小,从而达到碎草的目的。
但是现有的推草机的双刀片的固定方式比较复杂,没有防呆结构,刀片位置装配没有唯一性,从而导致切割时,整机的切割高度会发生变化。
发明内容
本发明提出一种推草机,以改善现有的推杆调节结构。现有的推杆调节结构通常设置在推杆与本体的枢接处,当操作者进行操作时,需要弯腰进行操作,松开推杆下部。因此,容易给操作者带来使用不便、劳累等问题。
本发明提出一种刀具组件,包括:
刀座,所述刀座的刀片装配面上设置有第一凸台和第二凸台,所述第一凸台的高度为第一高度,所述第二凸台的高度为第二高度;
第一刀片,具有与所述第一凸台相匹配的第一安装孔;
第二刀片,具有与所述第二凸台相匹配的第二安装孔;
所述第一刀片安装于所述第一凸台,所述第二刀片安装于所述第二凸台。
在本发明的一个实施例中,所述第一高度大于所述第二高度。
在本发明的一个实施例中,所述第一高度的范围为5-8mm,所述第二高度的范围为2-4mm。
在本发明的一个实施例中,所述第一刀片叠置于所述第二刀片之上,并且两者相互之间 错位布置。
在本发明的一个实施例中,所述第二凸台位于所述第一凸台与所述刀座之间。
在本发明的一个实施例中,所述第一凸台在所述刀座上的投影轮廓位于所述第二凸台在所述刀座上的投影轮廓内。
在本发明的一个实施例中,所述刀座的刀片装配面上还设置有至少一个第二定位凸台,所述第二定位凸台位于所述第二凸台的侧边,所述第二刀片具有与所述第二定位凸台相匹配的第二定位孔。
在本发明的一个实施例中,所述刀座的刀片装配面上还设置有至少一个第一定位凸台,所述第一定位凸台位于所述第一凸台的侧边,所述第二定位凸台位于所述第一定位凸台与所述刀座之间,所述第一刀片具有与所述第一定位凸台相匹配的第一定位孔。
在本发明的一个实施例中,所述第一定位凸台具有防呆设计。
在本发明的一个实施例中,所述刀座的刀片装配面的边缘上设置有至少一个支撑凸台,所述第一刀片支撑于所述支撑凸台的支撑台面上。
本发明提出一种动力头,所述动力头包括:
壳体,所述壳体包括至少一个外部进风孔;
盖体,设置在所述壳体上,所述壳体与所述盖体形成第一腔体;
控制组件,设置在所述壳体上,所述盖体包覆所述控制组件;
至少一个内部进风孔,设置在所述壳体上,所述内部进风孔位于所述控制组件的侧边;
至少一个导风板,设置在所述壳体上,所述控制组件与所述导风板形成第二腔体;
驱动组件,设置在所述壳体的底部,所述驱动组件包括出风孔,所述驱动组件和所述导风板形成第三腔体;
其中,冷却气流通过所述外部进风孔进入所述第一腔体内,并通过所述内部进风孔进入所述第二腔体和所述第三腔体,以通过所述出风孔流出。
在本发明的一个实施例中,所述盖体上包括一挡风板,所述挡风板接触所述壳体的顶部。
在本发明的一个实施例中,所述控制组件包括:
外壳,设置在支撑座上;
散热片,设置在所述外壳上;
控制元件,设置在所述外壳上,所述散热片和所述控制元件位于所述第二腔体内。
在本发明的一个实施例中,所述驱动组件包括:
电机座,设置在所述壳体的底部,所述出风孔位于所述电机座上;
电机,设置在所述电机座上。
在本发明的一个实施例中,所述壳体内还包括电池包腔,所述电池包腔内设置有能量组件。
在本发明的一个实施例中,所述冷却气流在所述第二腔体内的风速大于在所述第三腔体内的风速。
本发明提出一种推杆折叠机构,包括:
底盘,其底部的两端分别安装有前轮和后轮;
驱动组件,安装在所述底盘上;
刀具组件,安装在所述底盘的底部,并与所述驱动组件连接;
推杆折叠机构,安装在所述底盘上,所述推杆折叠机构包括:
推杆安装座,固定安装在所述底盘上;
限位板,安装在所述推杆安装座上,且所述限位板上设置有多个限位结构;
推杆,其一端与所述限位板转动连接,所述推杆包含第一推杆和第二推杆;
横杆,安装在所述推杆之间;
限位组件,位于所述推杆内,所述横杆能带动所述限位组件移动,从而使得所述推杆能够固定在所述限位板的不同位置。
在本发明的一个实施例中,所述限位组件包括一弹销,所述限位结构至少包括第一限位结构、第二限位结构和第三限位结构,且所述第一限位结构、所述第二限位结构和所述第三限位结构呈圆周方向间隔布置;
所述第一限位结构上设置有第一限位孔,所述弹销与所述第一限位孔相配合以将所述推杆固定在第一位置;
所述第二限位结构为一挡板,所述限位组件上的弹销与所述挡板相配合,以将所述推杆固定在第二位置;
所述第三限位结构上设置第二限位孔,所述限位组件上的弹销与第二限位孔相配合,以将所述推杆固定在第三位置。
在本发明的一个实施例中,所述推杆上设置有缺口,所述横杆通过横杆安装板安装在所述缺口处,且所述横杆安装板与所述缺口相适配。
在本发明的一个实施例中,所述限位组件还包括:
连接片,所述连接片固定连接在所述弹销的一端,所述连接片通过柱销与所述推杆连接;
弹簧,所述弹簧套设在所述弹销上,且位于所述连接片和所述弹销前端的垫片之间;
钢丝绳,所述钢丝绳的一端与所述连接片连接,另一端与所述横杆安装板连接。
本发明的割刀组件,通过在刀座上设置台阶状的刀片定位安装凸台,可以更方便的实 现双刀片的装配和更换。
本发明的割刀组件通过在刀座上设置台阶状的刀片定位安装凸台,在单独装配第一刀片时,可以起到支撑第一刀片的作用,第一刀片的位置可以保持不变。
本发明的动力头,包括壳体,壳体包括对称设置的第一壳体和第二壳体,第一壳体和第二壳体的上均设置外部进风孔。在壳体上设置盖体,第一壳体,第二壳体和盖体即形成第一腔体,冷却气流通过外部进风孔进入第一腔体内。本实用新型还在壳体上设置有支撑座,在支撑座的两端设置有内部进风孔,同时壳体上还包括导风板,导风板向支撑座的内部延伸,同时导风板连接内部进风孔,当在支撑座上设置控制组件时,控制组件和导风板即可形成第二腔体,同时控制组件上的散热片和控制元件也位于第二腔体内,进入第一腔体内的冷却气流可以通过内部进风孔进入第二腔体内,同时由于导风板的作用,冷却气流可以与散热片和控制元件充分接触,从而有利于控制元件和散热片快速散热。在壳体的底部设置有驱动组件,驱动组件上设置有出风孔,驱动组件和导风板形成第三腔体,由于导风板形成通风间隙,因此可以连通第二腔体和第三腔体,因此冷却气流可以进入第三腔体内。
本发明的推草机,通过在限位板上设置多个限位结构,并将推杆安装在所述限位板上,并通过横杆控制推杆与限位结构之间的配合,从而使得所述推杆组件能够固定在不同位置处,并且通过单手就能把推杆组件固定到需要的位置上,并且操作人员站在推草机旁的任意位置都能够去拉动横杆,操作起来非常方便。
附图说明
为了更清楚地说明本发明实施例的技术方案,下面将对实施例描述所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为一种推草机的结构示意图。
图2为一实施例中推草机与集草框装配示意图。
图3为一实施例中驱动组件与底盘的装配示意图。
图4为一实施例中底盘的结构示意图。
图5为一实施例中推杆组件的结构示意图。
图6为一实施例中推杆组件中的限位组件的结构示意图。
图7为一实施例中推杆组件中横杆与横杆安装板装配示意图。
图8为一实施例中推杆组件中限位板的结构示意图。
图9为一实施例中推杆组件中推杆的局部结构示意图。
图10为一实施例中推杆组件位于第二位置的示意图。
图11为一实施例中推杆组件位于第三位置的示意图。
图12为一实施例中推草机底部结构示意图。
图13为一实施例中推草机底部装配后堵块的结构示意图。
图14为一实施例中后堵块的结构示意图。
图15为一实施例中后堵块的俯视结构示意图。
图16为一实施例中后堵块的另一角度结构示意图。
图17为一实施例中固定件结构示意图。
图18为图4中C处的放大示意图。
图19为一实施例中底盘与电池包容纳腔装配示意图。
图20为一实施例中电池包容纳腔的结构示意图。
图21为图19的主视图。
图22为图21中沿H-H的剖视图。
图23为一实施例中推草机的局部爆炸示意图。
图24为一实施例中驱动组件与刀具组件的装配示意图。
图25为一实施例中推草机另一角度的结构示意图。
图26为图25中F处的放大示意图。
图27为一实施例中高度调节机构的结构示意图。
图28为图27的主视图。
图29为一实施例中尾板与高度调节机构的装配示意图。
图30为图29中的仰视图。
图31为一实施例中高度调节机构的部分结构示意图。
图32为一实施例中高度调节机构中的档位板的结构示意图。
图33为一实施例中高度调节机构的另一角度结构示意图。
图34为图29的俯视图。
图35为图34中沿D-D的剖视图。
图36为一实施例中高度调节机构中档位指示牌的结构示意图。
图37为一实施例中档位指示牌与底座板的装配示意图。
图38为一实施例中罩壳的结构示意图。
图39为一实施例中罩壳与翻盖结构的装配示意图。
图40为一实施例中翻盖结构的结构示意图。
图41为一实施例中翻盖结构的内侧结构示意图。
图42为一实施例中翻盖结构中翻盖固定座的结构示意图。
图43为另一种推草机的立体结构示意图。
图44为另一种推草机的刀具组件的装配分解图。
图45为一实施例中割草组件的第一刀片的仰视图。
图46为一实施例中割草组件的第一刀片的主视图。
图47为一实施例中割草组件的第二刀片的立体结构示意图。
图48为一实施例中割草组件的第二刀片的俯视图。
图49为一实施例中割草组件的第二刀片的主视图。
图50为一实施例中割草组件的刀座的立体结构示意图。
图51为一实施例中割草组件的刀座的立体结构示意图仰视图。
图52为沿图41中A-A方向的剖视图。
图53为一实施例中割草组件装配于旋转输出轴上的结构示意图。
图54为沿图53中B-B方向的剖视图。
具体实施方式
以下通过特定的具体实例说明本发明的实施方式,本领域技术人员可由本说明书所揭露的内容轻易地了解本发明的其他优点与功效。本发明还可以通过另外不同的具体实施方式加以实施或应用,本说明书中的各项细节也可以基于不同观点与应用,在没有背离本发明的精神下进行各种修饰或改变。
需要说明的是,本实施例中所提供的图示仅以示意方式说明本发明的基本构想,遂图式中仅显示与本发明中有关的组件而非按照实际实施时的组件数目、形状及尺寸绘制,其实际实施时各组件的型态、数量及比例可为一种随意的改变,且其组件布局型态也可能更为复杂。
如图1至41所示,一种园林工具,以推草机100为例,包括底盘10、罩壳20、推杆组件30、工作组件和驱动组件50,驱动组件50安装在底盘10上,工作组件可为刀具组件40,刀具组件40位于底盘10底部的刀具容纳腔101内,并且和驱动组件50的输出轴固定连接,罩壳20罩设在底盘10上,并将驱动组件50包裹在内,且底盘10的底部两侧分别安装有前轮102和后轮103,以便于移动推草机100。
如图1至图4所示,在本实施例中,底盘10包括底座板11和尾板12,尾板12固定安 装在底座板11的尾部,且底座板11远离尾板12的一侧上设置有第一凹槽110,用于容纳前轮轴111,前轮轴111的两端安装有前轮102,尾板12上同样开设有第二凹槽112,用于容纳后轮轴113,后轮轴113的两端安装有后轮103,前轮102、后轮103分别以前轮轴111和后轮轴113为转动中心自由转动,以便于移动推草机100,且尾板12处可拆卸安装有一集草部件1001,以便于储存被切割下来的草,集草部件1001为集草框。
如图1至图4所示,在本实施例中,推杆组件30安装在底盘10上靠近后轮103的一侧上,具体的,底座板11尾部顶面的两侧上设置有推杆安装座114,推杆组件30的一端与推杆安装座114连接,以便于利用推杆组件30推动推草机100进行移动。
如图1、图5至图9所示,在本实施例中,推杆组件30包括限位板31、推杆、横杆33和限位组件34,限位板31与推杆安装座114固定连接,推杆通过一转动件321与限位板31转动连接,转动件321转动连接在限位板31上,即推杆能够以转动件321的转动中心为旋转中心进行转动,从而将推杆转动到不同的位置,并通过限位组件34和限位板31的配合作用进行限位,推杆为中空结构,以便于容纳限位组件34,且推杆包括第一推杆301和第二推杆302,横杆33安装在第一推杆301和第二推杆302之间。
如图1、图5至图9所示,在本实施例中,第一推杆301和第二推杆302远离底盘10的一端上用U型上推杆303连接。U型上推杆303上固定有开关盒304,可以通过开关盒304上的按钮和开关把手双动作启动主刀电机。
如图1、图5至图9所示,在本实施例中,第一推杆301和第二推杆302的结构一致,以第一推杆301为例进行说明,推杆远离推杆安装座114的一端上设置有第二缺口322,第二缺口322处安装有横杆安装板331,横杆安装板331与第二缺口322相适配,且横杆安装板331包括第一安装板3311和第二安装板3312,第一安装板3311和第二安装板3312分别安装在第二缺口322的两侧,以将第二缺口322封闭起来,另外横杆安装板331上设置有一第二通孔3313,以便于连接横杆33,且第二安装板3312向内延伸形成有多个倒钩结构3314,且多个倒钩结构3314沿第二通孔3313的周向布置,以实现对横杆33的限位,以避免横杆33在第一推杆301和第二推杆302之间晃动。
如图1、图5至图9所示,在本实施例中,限位板31上分布有多个限位结构,以和限位组件34相配合,从而将推杆固定在不同的位置,以使得推草机100处于不同的使用状态或便于储存。具体的,限位板31向远离横杆安装板331的方向延伸形成第一限位结构311、第二限位结构312和第三限位结构313,且第一限位结构311、第二限位结构312和第三限位结构313沿圆周方向间隔布置。如图1所示,当推杆组件30处于第一位置时,限位组件34与第一限位结构311相配合时,推杆沿X方向斜向上布置,推草机100处于工作状态; 如图10所示,当推杆组件30处于第二位置时,限位组件34与第二限位结构312相配合时,推杆沿X方向的反方向斜向上布置,此时,可以将集草部件1001从尾板12拆卸下来并悬挂横杆33,并且推杆处于第二位置时,由于推杆方向为沿X方向的反方向斜向上布置,使得该推杆在悬挂集草部件1001因重力的作用和挡板的支撑作用稳定在第二位置;如图11所示,当推杆组件30处于第三位置时,限位组件34与第三限位结构313相配合时,推杆沿X方向的反方向布置,此时可以将推草机100竖直放置,使得推草机100的后轮103和支撑板314与地面接触以起到支撑作用,从而便于推草机100的储存。需要说明的是,支撑板314与限位板31固定连接或一体成型。
如图1、图6至图11所示,在本实施例中,第一限位机构311上设置有第一限位孔3111,第三限位机构313上也设置有一第二限位孔3131,通过限位组件34上的弹销341与第一限位孔3111或第二限位孔3131相配合以将推杆组件30固定在上述第一位置或第三位置,使得推草机100处于工作状态或储存状态。第二限位机构312为一挡板,通过弹销341与挡板相配合,使得推杆组件30处于第二位置。
如图1、图6至图11所示,在本实施例中,具体的,限位组件34包括弹销341、连接片342、弹簧343、柱销344和钢丝绳345,弹销341的一端与连接片342固定连接,连接片342上设置有一长圆形通孔3421,销柱344穿过推杆、转动件321将推杆固定到限位板31上,推杆可沿销柱344转动,连接片342设置有长圆形通孔3421,销柱344穿过长圆形通孔3421,以防止调整推杆的角度时,拉动连接片342受影响。柱销344与推杆固定连接,弹簧343套设在弹销341上,且位于连接片342和弹销341前端的垫片3411之间,钢丝绳345的一端与连接片342连接,另一端与横杆安装板331连接,当需要转动推杆时,通过拉动横杆33,带动横杆安装板331在推杆上沿其第二缺口322向上移动,使得弹销341缩回推杆内,从而与第一限位结构311、第二限位结构312或第三限位结构313之间脱离,使得推杆能够自由转动,当转动到需要的位置时,松开横杆33,弹销341自动复位,以和第一限位结构311、第二限位结构312或第三限位结构313相配合,从而使得推杆组件30固定在第一位置、第二位置或第三位置处。本实施例中,通过单手就能把推杆组件30固定到需要的位置上,并且操作人员站在推草机100的左边、右边、后边都能够去拉动横杆33,操作起来非常方便。
如图1及图12所示,在本实施例中,在刀具容纳腔101的底部的中间位置设置有一环形凸台1011,驱动组件50的输出轴位于环形凸台1011的中间位置,以便于安装刀具组件40。且环形凸台1011和刀具容纳腔101的侧壁之间形成第一集草通道1012,尾板12与底座板11之间形成一第二集草通道1013,且第一集草通道1012沿其环向的深度逐渐增加,并且 在深度最深处与第二集草通道1013贯通连接在一起。
如图1、图11及图12推草机100设置有储草模式和碎草模式两种工作模式。当推草机100处于储草模式下时,被刀具组件40切割下来的草沿着第二集草通道1013排入到推草机100尾部安装的集草部件1001中,以实现储草;当推草机100处于碎草模式下时,需要安装后堵块60,尾板12的底部设置有用于和后堵块60连接的连接处121,以将后堵块60安装在第二集草通道1013与刀具容纳腔101的连接处,从而将第二集草通道1013与刀具容纳腔101相互隔开,使得刀具容纳腔101形成一完整腔室,被切割下来的草不能进入第二集草通道1013内,使得被切割下来的草只能在刀具容纳腔101被刀具组件40中的刀片持续切割,以实现碎草的目的,且被切碎的草落直接至地面。
如图1、图12至图16所示,在本实施例中,后堵块60包括第一挡板61、第二挡板62和固定板63,第一挡板61为一弧形挡板,且弧形挡板的弧度与刀具容纳腔101的侧壁弧度相匹配,以便于安装后堵块60,第二挡板62沿第一挡板61的弧度方向固定连接在第一挡板61的一侧,且第二挡板62与第一集草通道1012相匹配,同时第二挡板62远离第一挡板61的一侧上向远离第一挡板61的一侧弯曲,以便于将第二挡板62和第一集草通道1012之间的间隙完全堵住,而固定板63固定在第一挡板61远离第二挡板62的一侧上,用于和尾板12固定连接,以将第二集草通道1013与刀具容纳腔101相互隔开。
如图1、图12至图16所示,另外,需要说明的是,第二挡板62的表面为弧面,以防止被切割下来的草滞留在第二挡板62上,产生堵塞,从而影响碎草效果,还可以更好的封闭集草通道,且在第二挡板62的底面上多条加强筋622,以提高第二挡板62的强度,使其不容易变形。需要说明的是,在本实施例中,第一挡板61、第二挡板62和固定板63为一体成型,以增强其结构强度。
如图1、图12至图17所示,在本实施例中,固定板63上设置有多个限位孔631,且每一个限位孔631对应设置有至少两个具有一定弹性的孔壁632,且至少两个孔壁632相互间隔且沿限位孔631的周向布置,并位于固定板63的底部,以用于和尾板12固定连接。在本实施例中,后堵块60通过固定件64与尾板12固定连接,且固定件64和限位孔631相配合,具体的,固定件64包括头部结构641和尾部结构642,头部结构641例如为一个球形结构或者椭圆形结构,尾部结构642为一个自攻螺丝,用于连接到尾板12上。当需要安装后堵块60时,先把固定件64连接到尾板12的连接处121上,然后把后堵块60的限位孔631对准固定件64的头部结构641,由于限位孔631处的孔壁632是有弹性的,通过用力把后堵块60往下面压,固定件64的头部结构641就会被压入到限位孔631内,以将后堵块60固定在尾板12上。
如图1、图12至图17所示,当需要取出后堵块60时,双手握住后堵块60,用力往上拔,后堵块60的限位孔631就可以轻松的从固定件64的头部结构641处脱出。另外,还需要说明的是,在固定板63的底部上设置有多个凸块633,多个凸块633位于限位孔631的四周,以提高后堵块60的限位孔631周边的强度,保证后堵块60在往下按压和往上拔的时候限位孔631周边不会被破坏。且该结构制造简单方便,且结构牢固耐用,没有卡滞的现象,装入后定位准确,以保证后堵块60在受到冲击力情况不松动。
如图4及图18所示,电动推草机在工作中,推草机的马达、电气部分和其它部件会产生热量,当达到一定温度时,机器就会失效,因此需要保证推草机的散热效果,以保证热量能够有效且及时散开,从而避免电机和电气部分因为温度过高而不能工作,同样,伴随在流动的空气进入推草机内部,并经过电机时,会存在空气中的灰尘堆积在推草机内部或进入电机,从而影响电机的正常工作,因此在散热的同时还要注意防尘,具体的,图18至图22所示,底盘10上安装有一电池包容纳腔115,用于安装电池包,电池包为推草机100提供电源,以驱动刀具组件40转动,且电池包容纳腔115靠近尾板12一侧的底部上设置有一电机罩壳116,以将电机50和电气元件罩住。需要说明的是,电池包容纳腔115的底面与底座板11之间留有一定的间隙,以保证足够的风量进入该推草机的内部,同时底座板11上设置有一电机安装孔1101,用于安装电机50,电池包容纳腔115的底面与底座板11之间的间隙与电机安装孔1101所在的平面之间存在一弯曲结构,以避免过多的灰尘进入电机50的内部,从而影响电机50的正常工作。
在本实施例中,电机50安装在电机安装孔1101处,电池包容纳腔115与底座板11之间形成一进风通道1152,进风通道1152通向电机罩壳116内,以便于从推草机100前端进风,并将其通入电机罩壳116内,以对电机50和电气元件进行散热,另外,从推草机100前端进入的风在进风通道1152内要经过至少一个弯曲部1153,以便于阻隔灰尘进入到电机内部。
在本实施例中,如图19至图24所示,在底盘10上罩设有罩壳20,且罩壳20的前侧设置有一第一进风口21,从第一进风口21进入推草机100内部的风从入风处进入进风通道1152,并从出风处进入电机罩壳116内,以对电机50和电气元件进行散热。并且,经过进风通道1152的风会经过电池包容纳腔115的腔壁,进而可以对电池包容纳腔115内的电池包进行降温,避免电池包因温度过高而工作失效。
具体的,进风通道1152与电机罩壳116内部连通的一端靠近电机50的底部,即靠近电机安装孔1101所在的平面。另外,在本实施例中,电机50的壳体上同样设置有多个间隙通孔501,电机50的底部设置有叶轮502,叶轮502与电机50的输出轴固定连接,且叶轮 502靠近电机50的一侧上设置有多个叶片503,并且叶轮502还用于安装刀具组件40。
当电机50驱动刀具组件40转动时,叶轮502也随着刀具组件40一同转动,在叶轮502转动下以带动空气的流动,从而使得外部空气从推草机前侧的第一进风口21进入推草机内部,并经过进风通道1152进入电机罩壳116内,由于该进风通道1152与电机罩壳116内部连通的一端靠近电机50的底部,所以进入的风会在电机50的壳体外侧,并沿着电机50的底部向上运动,再从电机50的顶部并经过电机50上的间隙通孔501推草机外排出,以最大效果对该电机50实现散热作用。
还需要说明的是,在叶轮502的转动作用下带动空气的流动,伴随着流动的空气进入推草机的内部对电机50进行散热时,往往会有灰尘随着流动的空气一同进入推草机内部,从而进一步进入到电机50中,从而影响电机的正常工作,因此,在本实施例中,进风通道1152内至少设置有一处弯曲部1153,从推草机100前端进入的风在进风通道1152内要经过至少一个该弯曲部1153,以便于阻隔灰尘进入到电机内部。
同时,在本实施例中,还沿着电机安装孔1101周向间隔设置有多个斜面结构1102,当有灰尘随着流动的空气进入到推草机100内部时,可以通过斜面结构1102及时排出,防止灰尘在推草机100内部堆积或进入电机50的内部,进而影响电机的正常工作。
还需要说明的是,在本实施例中,在第一进风口21处还设置有一装饰盖211,装饰盖211上设置有蜂窝状的通风孔,以便于进风,且装饰盖211的内侧上还安装有一空气滤清器1154,以进一步对进入推草机内部的空气进行过滤,从而减少进入推草机内部的灰尘,在本实施例中,空气滤清器1154例如为防尘海绵。另外,装饰盖211有两个凸台2111,用于在装配的时候插入到罩壳20前侧的两个凹槽104内部,使得装饰盖211有效的压住空气滤清器1154,从第一进风口21进入的风会先经过空气滤清器1154,以实现对其的净化处理,灰尘会被空气滤清器1154给过滤掉,避免大量灰尘进入推草机100内。
另外,在推草机的尾部还设置有第二进风口1173,在电机安装孔1101靠近尾板12的一侧上设置有多个挡板1103,多个挡板1103与设置电机安装孔1101外侧一圈的板件1104之间固定连接以形成一电气元件安装处,以用于安装电气元件,且在挡板1103上设置有多个开口1105,以便于从推草机100后端的第二进风口1173进风,从而对电机50和电气元件进行散热。
具体的,如图1、图25及26所示,推草机100尾部的推杆安装座114之间安装有一尾盖安装座117,尾盖安装座117上安装有一尾盖118,尾盖118用于遮盖集草部件1001。具体的,尾盖118与尾盖安装座117之间通过一转轴1171连接,且转轴1171上套设有一弹簧件1172,当需要揭开尾盖118时,尾盖118绕着转轴1171转动,弹簧件1172被压缩,当松 开尾盖118后,在弹簧件1172的弹力作用下,尾盖118复位并在弹力作用下压紧盖在集草部件1001身上。
如图1、图25及26所示,具体的,第二进风口1173设置在转轴1171处,以便于推草机100从后端进风,且在本实施例中,电机罩壳116远离电池包容纳腔115的一侧的顶端上设置有通风口1161,以便于从第二进风口1173进入的风从通风口1161进入电机罩壳116内,以实现对电机50和电器元件的散热作用。
如图19至图25所示,还需要说明的是,同样,从第二进风口1173进入推草机内部的空气同样伴随着有灰尘进入,因此,在通风口1161的内侧安装空气滤清器(未图示),以对从第二进风口1173进入推草机内部的空气进行过滤处理,从而达到除尘的作用,避免过多灰尘进入推草机100的内部。
在本实施例中,电气元件位于电机罩壳116内,并紧靠着通风口1161,风从第二进风口1173进入后,通过通风口1161,经过电气元件,再经过电机50的内部。机器在运转过程中,电机50和电气元件会产生热量,由于后端的风进入后会经过电气元件再进入到电机,在这过程中带走了电气元件和电机50工作时产生的热量,避免了电气元件和电机50由于温度过高而停止工作。另外,在一些实施例中,在尾盖安装座117向第二进风口1173处延伸形成一凸板1174,以部分遮挡住第二进风口1173。
如图1、图27至图30所示,在本实施例中,推草机100包括一高度调节结构70,通过该档位调节实现不同的割草高度,高度调节装置70具备有多个不同的档位,每一个档位对应着不同的割草高度,以便于在实际割草过程中,根据需要调整割草高度。在本实施例中,高度调节机构70包括前轮轴111、后轮轴113、档位板71、限位杆72和连杆73,具体的,前轮102和前轮轴111之间,以及后轮103和后轮轴113之间均为转动连接,后轮轴113通过第一压板1002与尾板12连接,前轮轴111与底座板11的前端连接。
如图13及图31所示,在本实施例中,前轮轴111和后轮轴113的结构一致,以后轮轴113为例进行说明,后轮轴113包括主体部分1131和对称设置在主体部分1131两端的轮轴部1132,在本实施例中,轮轴部1132为L型,轮轴部1132的一端与主体部分1131固定连接,另一端与后轮103转动连接,由于前轮轴111和后轮轴113分别与底座板11和尾板12连接,即与推草机100的底盘10连接,随着主体部分1131转动到不同位置上时,底盘10被相应的抬高或降低,以实现调节推草机100的高度。
如图31及图32所示,在本实施例中,档位板71包括一连接部711和档位部712,档位部712和连接部711例如为一体成型结构,连接部711与后轮轴113的一端固定连接,在档位部712远离连接部711的一侧上设置有多个档位凹槽713,多个档位凹槽713之间通过 滑道714相互连通,档位部712例如为一扇形结构,且多个档位凹槽713和滑道714均沿扇形结构的圆周方向布置,限位杆72与档位凹槽713相匹配,并可以通过滑道714进行切换,限位杆72的一端通过第二压板1003与尾板12连接,另一端穿过滑道714与一调节组件74连接,限位杆72位于不同的档位凹槽713内时,对应不同的档位和高度。连杆73的一端通过第一销轴731与档位板71转动连接,另一端通过第二销轴732与前轮轴111上的连接板1112转动连接,且连接板1112和档位板71位于推草机100的同一侧。
如图31至图33所示,在本实施例中,调节组件74包括一调节按钮741、调节杆742和复位弹簧743,调节按钮741安装在尾盖安装座117上,调节按钮741包括调节连接杆7411和按键7412,调节连接杆7411的一端与尾盖安装座117转动连接,另一端与调节杆742连接,且按键7412位于调节连接杆7411靠近连接调节杆742的一端上,并突出于尾盖安装座117,以便于操作人员进行操作,调节连接杆7411、按键7412和尾盖安装座117之间构成一个杠杆结构,使得在按动过程中比较省力。复位弹簧743套设在调节杆742上,复位弹簧743的一端抵在调节杆742上的一个平台结构7421,另一端抵在尾板12上,在复位弹簧743的作用下,使得被按下的调节按钮741回复原位。
如图34及图35所示,在本实施例中,高度调节机构还包括复位件,在本发明的一个实施例中,复位件为拉簧75,拉簧75位于档位板71的一侧,其一端与尾板12连接,另一端与档位板71上的拉簧挂钩715固定连接,在高度调节机构降低高度时,起到缓冲作用,在提升高度时,在拉簧75弹力的作用下使得档位板71转动实现档位切换。
如图29、图31至图36所示,在本实施例中,尾板12靠近档位板71处设置有一第一缺口122,档位板71部分位于第一缺口122内,当档位板71转动时,第一缺口122对档位板71起到限位作用,避免造成过度转动。另外,连杆73上还设置有一安装槽733,用于安装档位指示牌75,档位指示牌75例如为一扇形结构,其表面为一弧面751,弧面751上设置有档位标识,例如为1、2、3…或Ⅰ、Ⅱ、Ⅲ…,或类似标识。
如图6、图29、图31至图37所示,且档位指示牌75的两侧分别固定有第一柱销752和第二柱销753,第一柱销752与安装槽733连接,第二柱销753通过一压板将其连接在底座板11上的一半圆槽754内,当调节档位时,前轮轴111和后轮轴113转动,带动连杆转动,连杆73带动档位指示牌75转动,使档位指示牌75上的档位标识转动至特定标识处,以便于识别该推草机100处于某一档位。
如图38所示,另外,在罩壳20上设置有一标识孔23,标识孔23位于档位指示牌75上方,以便于操作人员从标识孔23处观察档位指示牌75,使得其在调整档位的时候,能够对着档位指示牌75进行档位调节,需要某一割草高度就调到对应的档位即可,使用过程非 常便捷,且当调节组件调节推草机的切割高度后,标识孔23内能够显示切割高度。
如图27至图38所示,具体的,其档位调节使得高度降低过程为,按压调节按钮741,使得调节杆742下降从而带动限位杆72,使得限位杆72从某一档位凹槽713内脱离进入滑道714内,此时,前轮轴111和后轮轴113失去限位作用,操作人员向下压推草机,使得档位板71转动,从而带动前轮轴111和后轮轴113,以降低底盘10的高度,转动时,限位杆72在滑道714内滑动,并且拉簧75被拉长起到缓冲的作用,当转动到需要的特定档位时,松开调节按钮741,在复位弹簧743的作用下,调节杆742复位,从而带动限位杆72进入另一档位凹槽713内,并实现限位,使得前轮轴111和后轮轴113被锁定,实现高度调节。其档位调节使得高度提升过程为,按压调节按钮741,使得调节杆742下降从而带动限位杆72,使得限位杆72从某一档位凹槽713内脱离进入滑道714内,此时,前轮轴111和后轮轴113失去限位作用,在被拉长的拉簧75的弹力作用下驱动档位板71转动,从而带动前轮轴111和后轮轴113,以提升底盘10的高度,当转动到需要的特定档位时,松开调节按钮741,在复位弹簧743的作用下,调节杆742复位,从而带动限位杆72进入另一档位凹槽713内,并实现限位,使得前轮轴111和后轮轴113被锁定,实现高度调节。
如图38所示,在本实施例中,罩壳20上设置有一第一通孔24,以暴露电池包容纳腔115的腔室,该腔室内安装有电池包,从而便于更换电池包,罩壳20上设置有一翻盖安装部,在该翻盖安装部安装有一翻盖结构80,翻盖结构80用于覆盖第一通孔24,以将电池包容纳腔115的腔室封闭,利于保护该腔室内的电池包。
如图38至图42在本实施例中,翻盖结构80包括翻盖固定座81和翻盖82,翻盖固定座81的内侧的一侧上设置有多个卡扣811,以便于和翻盖安装部上的卡槽812相匹配,以将翻盖固定座81安装在罩壳20上,再通过螺栓穿过翻盖固定座81另一侧上的第三通孔813,以将翻盖固定座81与罩壳20固定连接,在利用螺栓固定后,翻盖固定座81的前端部位刚好压住装饰盖211,使得装饰盖211被完全被固定。
翻盖固定座81设置有第三通孔813的一侧上设置有摆臂安装槽814,用于连接翻盖82,翻盖82的一侧上安装有摆臂结构821,摆臂结构821包括一摆臂8211和转轴8212,摆臂8211的一端与翻盖82的内侧固定连接,另一端与转轴8212固定连接,摆臂结构821的转动轴8212安装在摆臂安装槽814内,并且相互转动连接,即翻盖82可绕着转动轴8212转动。
具体的,翻盖结构80的安装过程为,先将翻盖82上的摆臂结构821安装在摆臂安装槽814内,实现翻盖82与翻盖固定座81之间的安装,再将翻盖固定座81内的卡扣811插入到罩壳20上的卡槽812内,并通过翻盖固定座81上的第三通孔813对准罩壳20上的螺纹孔815并通过螺栓进行固定。
还需要说明的是,在本实施例中,翻盖82的内侧设置有多条加强筋结构83,以增强该翻盖结构80的强度。
通过在限位板上设置多个限位结构,并将推杆安装在限位板上,并通过横杆控制推杆与限位结构之间的配合,从而使得推杆组件能够固定在不同位置处,并且通过单手就能把推杆组件固定到需要的位置上,并且操作人员站在推草机旁的任意位置都能够去拉动横杆,操作起来非常方便。
通过在推草机底部的集草通道处安装后堵快,且后堵块的第二挡板的表面为弧面,以防止被切割下来的草滞留在第二挡板上,产生堵塞,从而影响碎草效果,还可以更好的封闭集草通道,并且还设置有加强筋和在固定板的底部上设置有多个凸块,提高该后堵块的结构强度。并且还通过在固定板上设置有多个限位孔,且每一个限位孔对应设置有至少两个具有一定弹性的孔壁,使得其拆装过程较为方便,且装入后定位准确,并能够保证后堵块在受到冲击力情况不松动。
通过设置不同的进风口,以实现对该推草机内的驱动组件和电气元件的散热作用,避免了电气元件和驱动组件由于温度过高而停止工作,并且还通过在进风口处设置空气滤清器、将进风通道设置有至少一个弯曲部,以及在电机安装孔的周向间隔设置有多个斜面结构以起到防尘的作用,避免灰尘进入电机内部。
通过切换档位来调整底盘的高度,从而适应不同的草坪类型,并且能够根据需要的切割高度来调整底盘的高度,同时能够避免被杂草等物缠绕,使调高更为安全、明显,操作方便,并且通过在罩壳上方设置标识孔,通过该标识孔能够及时有效的查看档位指示牌指示的推草机的档位,以便进行调整。
该推草机上的翻盖结构通过翻盖固定座固定在罩壳上,其结构简单,固定可靠,并且安装过程简单便捷。
如图43和图44所示,本实施例还提供一种应用于推草机100上的具有刀具组件40,刀具组件40采用双层刀片结构。刀具组件40收容在推草机的壳体内,并在壳体内形成切割空间,该刀具组件40包括刀座43及装配于刀座43上的第一刀片41(集草刀片)和第二刀片42(碎草刀片)。
如图45和图46所示,上述第一刀片41包括呈平板状设置的第一中间部413和分设在第一中间部413两端的第一切割部414,第一中间部413例如可呈细长的矩形状,用于安装至刀座43,在第一中间部413的纵长方向上,第一切割部414相对于中间部扭曲设置,第一切割部414的朝向刀片旋转方向(旋向指示标识415指示的方向)的一端设有第一切割刃,用于切割草叶并将草叶切割成碎屑,第一切割部414的远离第一切割刃的一端形成有朝向刀 片旋转方向的用于集草的集草坡面。
如图45和图46所示,上述第一刀片41上具有一贯穿第一刀片41且位于中心处的第一安装孔412,第一安装孔412的两侧各具有一个贯穿第一刀片41的第一定位孔411。第一安装孔412和第一定位孔411沿第一刀片41的纵长方向布置(如图45所示),当然第一安装孔412和第一定位孔411也可沿与第一刀片41的纵长方向呈一定夹角的方向布置。该第一定位孔411例如可以是具有防呆功能的箭头孔,两个箭头孔的指向相反,这样如果第一刀片41反向则不能装配,可以避免反装。箭头孔在圆周方向上指向第一刀片41的刀片旋转方向,两个箭头孔以第一安装孔412的中心呈中心对称,刀座43上具有两个箭头凸台(见图50及图51),两个箭头凸台分别与第一刀片41上的两个箭头孔相配合,实现第一刀片41的定位。两边箭头孔指示方向相反,但尺寸一样,第一刀片41原理上即可满足动平衡及静平衡要求。需要指出的是,箭头孔也可以设计成不中心对称。
如图45和图46所示,在第一刀片41的底面(也即远离刀座43的一侧表面)上设置有旋向指示标识415,该旋向指示标识415包括两个,分别以第一安装孔412的中心呈中心对称布置。需要说明的是,箭头孔的指向可朝向第一刀片41的刀片旋转方向,第一刀片41的箭头孔的方向即有刀片旋向指示作用,融合了旋向指示功能,因此也可在第一刀片41上不设置旋向指示标识415。
如图47-图49所示,为了实现更好的切割效果和便于区分,第二刀片42在形状和结构上与第一刀片41的有所区别。第二刀片42包括呈平板状设置的第二中间部423和分设在第二中间部423两端的第二切割部424,第二中间部423例如可呈细长的矩形状,用于安装至刀座43,第二切割部424弯折设置于第二中间部423的朝向刀座43的一侧,第二切割部424朝靠近刀座43的一侧弯曲,第二切割部424的远离第二中间部423的一端平行于第二中间部423设置,也即第二切割部424朝靠近刀座43的一侧弯曲,第二切割部424的朝向刀片旋转方向的一端设有第二切割刃,用于切割草叶并将草叶切割成碎屑。
如图47-图49所示,上述第二刀片42上具有一贯穿第二刀片42且位于中心处的第二安装孔422,第二安装孔422的两侧各具有一个贯穿第二刀片42的第二定位孔421。第二安装孔422和第二定位孔421沿与第二刀片42的纵长方向呈一定夹角的方向布置(如图47及图48所示),从而当第二刀片42和第一刀片41装配于刀座43上时,第二刀片42和第一刀片41会呈相同大小夹角。当然第二安装孔422和第二定位孔421也可沿第二刀片42的纵长方向布置。在本实施例中,第二刀片42的第二安装孔422的尺寸大于第一刀片41的第一安装孔412的尺寸,第二刀片42的第二定位孔421的尺寸大于第一刀片41的第一定位孔411的尺寸。
如图50-图52所示,上述刀座43包括刀座本体437和设置于刀座本体437的顶面中心处的中心凸台438,该中心凸台438由底端到顶端直径先逐渐减小然后保持恒定。
刀座本体437的底面(刀片装配面)上设置有第一台阶凸台和两个第二台阶凸台,第一台阶凸台设置于刀座本体437的底面中心位置,两个第二台阶凸台以第一台阶凸台的中心呈中心对称布置。需要说明的是,在一些实施例中,刀座本体437的底面上也可只设置一个第二台阶凸台,第二台阶凸台位于第一台阶凸台的侧边。
如图50-图52所示,上述第一台阶凸台包括同轴设置于刀座本体437的底面上的第一凸台435及第二凸台432,第一凸台435与第一安装孔412相匹配,第二凸台432与第二安装孔422相匹配,第二凸台432位于第一凸台435与刀座本体437之间,第二凸台432与第一凸台435在刀座本体437的底面上的投影是嵌套关系,第一凸台435的轮廓位于第二凸台432的轮廓内。定义第一凸台435的高度为第一高度,定义第二凸台432的高度为第二高度,其中,第一高度大于第二高度。作为示例,第一高度的范围为5-8mm,譬如5mm、6mm、7mm或8mm,第二高度的范围为2-4mm,譬如2mm、3mm、4mm。
如图50-图52所示,第二台阶凸台包括同轴设置于刀座本体437的底面上的与第二定位孔421相匹配的第二定位凸台431及与第一定位孔411相匹配的第一定位凸台434,第二定位凸台431位于第一定位凸台434与刀座本体437之间,第二定位凸台431与第一定位凸台434在刀座本体437的底面上的投影是嵌套关系,第一定位凸台434的轮廓位于第二定位凸台431的轮廓内。第二定位凸台431和第二凸台432作为第二刀片42安装结构,用于安装第二刀片42;第一定位凸台434和第一凸台435作为第一刀片41安装结构,用于安装第一刀片41。作为示例,第一定位凸台434例如可为箭头凸台或其他合适形状的具有防呆功能的凸台,关于第一凸台435的中心呈中心对称设置的两个箭头凸台更有利于旋转输出轴51的扭矩传动到刀片上。需要说明的是,上述的任一安装孔和对应的定位凸台的匹配是指两者的高度相同,并且形状相匹配。
如图50-图52所示,可选地,为了能够对第一刀片41形成更好的支撑作用,在刀座43的刀片装配面的边缘上设置有两个支撑凸台433,两个支撑凸台433关于刀座43的中心呈中心对称布置。支撑凸台433呈L型结构,该支撑凸台433具有用于支撑第一刀片41的支撑台面436,支撑台面436的高度与第二凸台432和第二定位凸台431的高度相同,从而当第一刀片41装配于刀座43上述,第一刀片41的第一中间部413的两端可支撑于支撑凸台433的支撑台面436上。可以理解的是,在一些实施例中,刀座43的刀片装配面的边缘上也可只设置有一个支撑凸台433。
如图50-图42所示,上述刀座43的中心设置有贯穿中心凸台438和刀座本体437的台 阶状的输出轴安装孔,从靠近旋转输出轴51的一端向远离旋转输出轴51的一端,输出轴安装孔依次包括同轴且直径依次减小的第一孔径段4303,第二孔径段4302及第三孔径段4301,第一孔径段4303和第二孔径段4302供旋转输出轴51穿过,第三孔径段4301供紧固螺栓45(紧固件)穿过,旋转输出轴51与刀座43连接固定时,旋转输出轴51的自由端由输出轴安装孔的顶端依次穿过第一孔径段4303和第二孔径段4302,紧固螺栓45由输出轴安装孔的底端穿过在第三孔径段4301后与旋转输出轴51的自由端的内螺纹孔螺纹固定,以将刀具组件40装配于旋转输出轴51上。
如图50-图52所示,第二孔径段4302的底部(靠近第三孔径段4301的一端)设置有从动传动结构,旋转输出轴51的自由端设置有主动传动结构(未标示),紧固螺栓45插入第二孔径段4302的底部时,第二孔径段4302内的从动传动结构439和旋转输出轴51的主动传动结构构成传动配合,随着旋转输出轴51的旋转,使刀座43带动第一刀片41和第二刀片42旋转,进行割草作业。旋转输出轴51的主动传动结构例如可以是设置于旋转输出轴51的自由端的缺口,而从动传动结构是设置于第二孔径段4302的底部的与缺口相匹配的凸出块309。可以理解的是,在其他实施例中,主动传动结构和从动传动结构可以是能够实现传动配合的任意结构,例如传动配合的主动棘齿和从动棘齿,传动配合的主动凸齿和从动凸齿,或者传动配合的向相对方向伸出的凸起等。
如图53及图54所示,在割草组件装配时,首先将第二刀片42上的定位安装孔(第二安装孔422和第二定位孔421)穿过第一刀片41安装结构后装配于第二刀片42安装结构上;然后将第一刀片41装配于第一刀片41安装结构上,第一刀片41叠置于第二刀片42之上,并且相互之间错位布置,也即第一刀片41和第二刀片42之间呈一定夹角布置。第一刀片41和第二刀片42可以对草叶完成两次切割,第一刀片41的切割刃位于第二刀片42的切割刃的前方,当切割时,第一刀片41首先切割草叶,然后第二刀片42对草叶再次切割,从而可以达到更好的碎草效果。
当单独装配第一刀片41时,由于第二刀片42定位安装结构尺寸大,可以起到支撑第一刀片41的作用,第一刀片41的位置可以保持不变。另外,当刀座43上设置支撑凸台433时,支撑凸台433可以和第二刀片42定位安装结构同时第一刀片41起到支撑作用。
通过在刀座上设置台阶状的刀片定位安装凸台,可以更方便的实现双刀片的装配和更换。本发明的刀具组件40通过在刀座和刀片上的防呆设计,可以避免刀片的反装。通过在刀座上设置台阶状的刀片定位安装凸台,在单独装配第一刀片时,可以起到支撑第一刀片的作用,第一刀片的位置可以保持不变。
如图55所示,本实施例还公开又一种推草机100,该推草机100可以包括推杆组件30, 动力头900,底盘10,行走轮,集草部件1001。推杆组件30倾斜设置在底盘10上,推杆组件30可以自底盘10后方向上延伸。动力头900可以设置在底盘10上。行走轮可以设置在底盘10的底部,在底盘10的后方设置用于收集碎草叶的集草部件1001。
如图55所示,在本实施例中,该动力头900作为可更换的元件,能够替换小型内燃机,可应用在多种设备上,例如户外动力设备,包含推草机、扫雪机、清洗机、松土机等。本实施例将以推草机为例,对动力头900的具体结构和功能进行详细说明,但不应以此为限。
如图55-图56所示,在本实施例中,在底盘10的底部设置有出风孔105,叶轮502和刀具组件40。动力头900内的电机输出轴可以延伸至底盘10的底部,叶轮502和刀具组件40可以与电机的输出轴连接,叶轮502可以位于刀具组件40的上方。出风孔105可以设置在驱动组件上,驱动组件为电机。当该推草机100处于工作状态时,电机的输出轴带动叶轮502和刀具组件40旋转,叶轮502旋转可以引导动力头900内的气体流动,刀具组件40旋转可以进行割草作业。
如图57-图58所示,在本实施例中,该动力头900可以包括第一壳体911,第二壳体912和盖体913。第一壳体911和第二壳体912相对设置,第一壳体911和第二壳体912例如左右设置,从而形成壳体。第一壳体911和第二壳体912的结构可以相同。盖体913设置在第一壳体911和第二壳体912的顶部,即位于壳体的上方。盖体913,第一壳体911和第二壳体912可以形成第一腔体。在第一壳体911和第二壳体912上分别设置有外部进风孔914,外部进风孔914例如设置在第一壳体911和第二壳体912的后端,外部进风孔914可以朝向不同的方向。通过设置该外部进风孔914,外部冷却气流即可通过外部进风孔914进入第一腔体内,即外部冷却气流进入动力头900内部,从而实现对控制组件和驱动组件进行散热。在第一壳体911和第二壳体912的底部设置有电机座915,出风孔105设置在电机座915上,在电机座915上设置有电机,即电机位于动力头900内。电机的输出轴51通过电机座915中心的穿孔延伸至动力头900的外部。在装配时,首先将第一壳体911和第二壳体912与电机座915组装固定,然后将盖体913固定在第一壳体911和第二壳体912的顶部。
如图57-图58所示,在本实施例中,在盖体913上还设置有挡风板9131,挡风板9131竖直设置在盖体913内,当盖体913设置在第一壳体911和第二壳体912上时,挡风板9131则位于动力头900内,且挡风板9131接触第一壳体911和第二壳体912的顶部。当冷却气流通过外部进风孔914进入动力头900内时,挡风板9131则阻止外部气流的行进方向,从而使得冷却气流只能按照预设的路径流动,从而可以对动力头900内的控制组件和驱动组件进行冷却,加快控制组件和驱动组件的散热。在本实施例中,外部进风孔914可以设置在第一壳体911的左后方,并朝向后下方倾斜,从而当推草机100放置在地面并遭受淋雨时,雨 水无法由外部进风孔914进入动力头900内部。
如图59所示,在本实施例中,在第一壳体911和第二壳体912的顶部设置有控制组件918,控制组件918用于控制电机。在控制组件918的两端还形成有内部进风孔920,通过该内部进风孔920,冷却气流则可以流入该控制组件918的下方,从而对控制组件918上的散热片和控制元件进行散热。在第一壳体911和第二壳体912上还设置固定卡扣919,固定卡扣919例如设置在控制组件918的两侧,固定卡扣919的高度突出于控制组件918。固定卡扣919的顶部具有弯折部,弯折部接触在控制组件918的顶面,从而可以将控制组件918固定起来,本实施例通过固定卡扣919固定控制组件918,从而可以方便拆卸控制组件918。在本实施例中,在控制组件918的前方还设置一电池包腔917,电池包可以设置在电池包腔917内,从而可以对该动力头900提供动力。
如图60所示,在本实施例中,该控制组件918可以包括外壳934,固定座935。外壳934设置在固定座935上,在外壳934上设置散热片936和控制元件(图中未显示)。散热片936和控制元件可以朝向壳体的内部。通过设置该固定座935,可以适用更小尺寸的控制板。
如图59-图61所示,在本实施例中,第一壳体911和第二壳体912上均设置有支撑体922,第一壳体911上的支撑体922和第二壳体912上的支撑体922形成支撑座,控制组件918则可以固定在该支撑座上。该支撑座例如为中空的长方形,也就是说支撑座的中心包括一通孔,控制组件918则固定在通孔的外周上,即固定座935固定在通孔的外周上,同时控制组件918上的散热片936和控制元件朝向该通孔,控制组件918的外壳934朝向盖体913。固定卡扣919则设置在支撑座的两侧,当控制组件918设置在支撑座上时,则可以将固定卡扣919上的弯折部抵靠在控制组件918的顶部,即固定卡扣919抵靠在固定座935上,从而固定控制组件918。在本实施例中,在支撑座的侧边还设置内部进风孔920,且在支撑座的内部设置导风板921,即导风板921连接该内部进风孔920,导风板921倾斜延伸至支撑座内部。控制组件918上的散热片936和控制元件可以位于该导风板921上,也就是说散热片936可以靠近内部进风孔920,因此当冷却气流通过内部进风孔920时,导风板921可以对冷却气流起到导向作用,从而使得冷却气流与散热片936和控制元件充分接触,从而加快对散热片936和控制元件的冷却。本实施例在控制组件918的两侧设置内部进风孔920,从而可以从两个方向对控制组件918进行散热,加快控制组件918的散热速度,同时由于第一壳体911和第二壳体912上的导风板921是未连接的,即第一壳体911和第二壳体912上的导风板921之间形成通风间隙9211,因此冷却气流可以通过导风板921之间的通风间隙9211流向第一壳体911和第二壳体912的底部。当然,在一些实施例中,还可以在支撑座内仅设置一个导风板921,例如省略掉图61中右侧的导风板921,保留左侧的导风板921,因此通 风间隙9211位于左侧的导风板921的右侧,由于仅设置一个导风板921,因此增加了通风间隙9211的面积,因此可以使得更多的外部冷却气流向第一壳体911和第二壳体912的底部。
如图60-图62所示,图62仅显示出第一壳体911内部的示意图。在第一壳体911上设置有支撑体922,在支撑体922的两侧设置有固定卡扣919,固定卡扣919突出于支撑体922。在支撑体922的一端设置有内部进风孔920,内部进风孔920可以靠近控制组件918上的散热片936,在支撑体922内设有导风板921。导风板921可以和控制组件918形成第二腔体,冷却气流通过内部进风孔920进入第二腔体内,控制元件和散热片936可以位于第二腔体内,因此冷却气流可以与散热片936和控制元件充分接触,从而加快冷却散热片936和控制元件。在第一壳体911的底部设置有电机座915,在电机座915上设置有电机130,电机座915上还具有出风孔105。控制组件918与电机130之间的高度可以大于100mm,例如为150mm,通过增加控制组件918与电机130之间的高度,可以使得接触控制组件918之后的冷却气流再次降温,从而可以起到对电机130的冷却作用。
如图61-图63所示,图63显示为第一腔体931,第二腔体932和第三腔体933的位置示意图。本实施例将第一壳体911和第二壳体912的顶部与盖体913之间的区域定义为第一腔体931,将控制组件918与导风板921之间的区域定义为第二腔体932,将导风板921的下方电机130之间的区域定义为第三腔体933,也就是说第一腔体931位于第二腔体932的上方,第二腔体932位于第三腔体933的上方。第一腔体931和第二腔体932可以通过内部进风孔920连通,第二腔体932和第三腔体933可以通过通风间隙9211连通。冷却气流在第二腔体932内的风速大于在第三腔体933内的风速。当该动力头900在工作时,冷却气流通过外部进风孔914(图57所示)进行第一腔体931内,由于挡风板9131的作用,且挡风板9131竖直设置在第一壳体911和第二壳体912的顶部上,因此使得冷却气流只能通过内部进风孔920进入第二腔体932内,由于控制组件918上的散热片936和控制元件位于第二腔体932内,因此冷却气流可以与散热片936和控制元件充分接触,从而可以快速对散热片936和控制元件起到冷却作用。外部气流对散热片936和控制元件冷却之后,从而导风板921之间的通风间隙9211进入第三腔体933内,同时由于控制组件918与52的高度大于100mm,因此可以降低冷却气流的温度,于是当冷却气流通过出风孔105流出外部时,冷却气流可以先经过52的内部,从而可以对52起到冷却作用,也就是吸收52工作过程中产生的热量,因此可以加快52的散热。需要说明的是,图63中的箭头表示冷却气流的流动路径。
如图57所示,在一些实施例中,为了防止草屑和灰尘等其他碎屑随冷却气流进入动力头900内部,造成52、控制组件918的损坏,还可以在外部进风孔914的外侧中设置有过滤元件(图中未显示)。
如图55-图63所示,以下将阐述该推草机100的散热过程。当该推草机100处于工作状态时,52启动,叶轮502转动并产生吸力,外部冷却气流在叶轮502的吸力作用下自外部进风孔914进入动力头900内部,即进入第一腔体931内,由于挡风板9131的阻挡作用,进入第一腔体931内部的冷却气流通过内部进风孔920和导风板921进入第二腔体932内,由于散热片936位于第二腔体932内,因此冷却气流可以与散热片936充分接触,可以快速对散热片936起到散热作用。然后冷却气流通过通风间隙9211进入第三腔体933内,冷却气流进入第三腔体933内时,由于52与控制组件918的高度较大,因此可以对冷却气流起到降温作用,然后在进入52内部,从而对52进行冷却作用,最终通过电机座915底部的出风孔105流出。在冷却气流的流动过程中,会带走控制组件918及52内部的热量,使得动力头900能够在较稳定的温度下工作,从而可以提高该推草机100的工作效率。
如图64所示,在本实施例中,第一壳体911和第二壳体912中均包括一个电池包腔917,电池包腔917可以位于动力头900的前端。电池包940可以设置在电池包腔917内,电池包940也可以定义为能量组件。电池包940内包含有多节电芯,电芯沿电池包的纵向排列。在其他实施例中,电池包可以具有不同的形状,电芯亦可以沿其他方向排列。根据电芯的数量和组合方式,电池包可以输出不同的电压。在本实施例中,电池包940例如为80V电池包。当然,其他电压的电池包仍在本实施例的保护范围内。在本实施例中,电池包腔917的数量至少为两个,因此电池包940的数量至少为两个,该两个电池包940沿动力头900的横向并列布置。
如图64-图66所示,在本实施例中,盖体913可以包括固定盖938和翻盖939。翻盖939可转动地设置在固定盖938上,翻盖939设置在固定盖938的前端。固定盖938可以包括开口区9381和覆盖区9382,开口区9381位于覆盖区9382的前端。翻盖939可以位于开口区9381上。开口区9381可以设置在电池包腔917的外周上,当翻盖939盖合在固定盖938上时,翻盖939可覆盖电池包940,从而可以保护电池包940。覆盖区9382可以位于控制组件918(图63所示)上,即覆盖区9382完全覆盖控制组件918。在开口区9381的前端还设置有下卡扣941,在下卡扣941的内侧还设置弹性件942,弹性件942比下卡扣941更加靠近电池包腔917,弹性件942可以突出于固定盖938。本实施例可以在下卡扣941的内侧设置安装孔,然后将弹性件942设置在安装孔内,且弹性件942突出于安装孔。在本实施例中,弹性件942的中轴线和下卡扣941的中轴线可以重合,弹性件942和下卡扣941的中轴线例如位于开口区9381的中轴线上。在本实施例中,弹性件942例如为橡胶垫。当然,在一些实施例中,盖体913还可以仅包括翻盖939,即翻盖939可转动地设置在第一壳体911和第二壳体912的顶部。当然,在一些实施例中,当电池包940直接设置在底盘10(图55所示) 上时,那么可以将翻盖939可转动地设置在底盘10上,翻盖939也可以包覆该电池包940,从而可以简化该推草机100的结构。
如图66-图68所示,在本实施例中,在翻盖939的内部(翻盖939朝向电池包腔917的一面)设置有与下卡扣941相配合的上卡扣943,在上卡扣943的内侧还设置有限位筋944。限位筋944对应弹性件942。当将翻盖939盖合在固定盖938上时,限位筋944接触弹性件942,并挤压弹性件942,从而使得弹性件942发生形变,同时将上卡扣943扣入下卡扣941内。当上卡扣943扣入下卡扣941内时,弹性件942对限位筋944产生弹性力,从而实现翻盖939与固定盖938之间的柔性连接。在本实施例中,弹性件942对限位筋944的弹性力要小于上卡扣943与下卡扣941之间的扣合力,从而避免上卡扣943脱离下卡扣941。弹性件942的压缩量可以大于或等于上卡扣943与下卡扣941之间的间隙,从而保证上卡扣943与下卡扣941的间隙较小或者基本没有间隙,因此在运输或使用该推草机100过程中,可以减少推草机100发生异响。在一些实施例中,限位筋944还可以设置在开口区9381的前端上,弹性件942还可以对应设置在翻盖939上,也就是说限位筋944和弹性件942的位置互换。
如图65-图67所示,在本实施例中,上卡扣943和限位筋944位于翻盖939的前端,在翻盖939的后端设置有铰链945。翻盖939的前端可以是靠近下卡扣941的一端,翻盖939的厚度可以是远离下卡扣941的一端。在本实施例中,铰链945的一端固定在翻盖939上,铰链945的另一端设置有铰链孔946。铰链孔946可以与覆盖区9382上的枢轴947连接,即翻盖939通过铰链945固定在枢轴947上,因此翻盖939可转动地设置在固定盖938上。在本实施例中,在翻盖939的后端例如设置有两个铰链945,在固定盖938上对应设置两个枢轴947。铰链945和枢轴947可以分别位于翻盖939和固定盖938面向电池包腔917的一面上。
本实施例的动力头可以包括壳体,壳体包括对称设置的第一壳体和第二壳体,第一壳体和第二壳体的上均设置外部进风孔。在壳体上设置盖体,第一壳体,第二壳体和盖体即形成第一腔体,冷却气流通过外部进风孔进入第一腔体内。本发明还在壳体上设置有支撑座,在支撑座的两端设置有内部进风孔,同时壳体上还包括导风板,导风板向支撑座的内部延伸,同时导风板连接内部进风孔,当在支撑座上设置控制组件时,控制组件和导风板即可形成第二腔体,同时控制组件上的散热片和控制元件也位于第二腔体内,进入第一腔体内的冷却气流可以通过内部进风孔进入第二腔体内,同时由于导风板的作用,冷却气流可以与散热片和控制元件充分接触,从而有利于控制元件和散热片快速散热。在壳体的底部设置有驱动组件,驱动组件上设置有出风孔,驱动组件和导风板形成第三腔体,由于导风板形成通风间隙,因此可以连通第二腔体和第三腔体,因此冷却气流可以进入第三腔体内。本发明中电机至控制 组件的高度可以大于100mm,因此可以对经过控制元件和散热片的冷却气流进行充分降温,然后冷却气流在进入驱动组件内部,从而实现对驱动组件的散热,冷却气流最后通过出风孔流出外部,从而使得该动力头处于较稳定的工作温度内,因此可以提高该推草机的工作效率。
以上描述仅为本申请的较佳实施例以及对所运用技术原理的说明,本领域技术人员应当理解,本申请中所涉及的范围,并不限于上述技术特征的特定组合而成的技术方案,同时也应涵盖在不脱离发明构思的情况下,由上述技术特征或其等同特征进行任意组合而形成的其它技术方案,例如上述特征与本申请中公开的(但不限于)具有类似功能的技术特征进行互相替换而形成的技术方案。

Claims (20)

  1. 一种刀具组件,其特征在于,所述刀具组件包括:
    刀座,所述刀座的刀片装配面上设置有第一凸台和第二凸台,所述第一凸台的高度为第一高度,所述第二凸台的高度为第二高度;
    第一刀片,具有与所述第一凸台相匹配的第一安装孔;
    第二刀片,具有与所述第二凸台相匹配的第二安装孔;
    所述第一刀片安装于所述第一凸台,所述第二刀片安装于所述第二凸台。
  2. 根据权利要求1所述的刀具组件,其特征在于,所述第一高度大于所述第二高度。
  3. 根据权利要求2所述的推草机,其特征在于,所述第一高度的范围为5-8mm,所述第二高度的范围为2-4mm。
  4. 根据权利要求1所述的刀具组件,其特征在于,所述第一刀片叠置于所述第二刀片之上,并且两者相互之间错位布置。
  5. 根据权利要求1所述的刀具组件,其特征在于,所述第二凸台位于所述第一凸台与所述刀座之间。
  6. 根据权利要求5所述的刀具组件,其特征在于,所述第一凸台在所述刀座上的投影轮廓位于所述第二凸台在所述刀座上的投影轮廓内。
  7. 根据权利要求1所述的刀具组件,其特征在于,所述刀座的刀片装配面上还设置有至少一个第二定位凸台,所述第二定位凸台位于所述第二凸台的侧边,所述第二刀片具有与所述第二定位凸台相匹配的第二定位孔。
  8. 根据权利要求7所述的刀具组件,其特征在于,所述刀座的刀片装配面上还设置有至少一个第一定位凸台,所述第一定位凸台位于所述第一凸台的侧边,所述第二定位凸台位于所述第一定位凸台与所述刀座之间,所述第一刀片具有与所述第一定位凸台相匹配的第一定位孔。
  9. 根据权利要求8所述的刀具组件,其特征在于,所述第一定位凸台具有防呆设计。
  10. 根据权利要求1所述的刀具组件,其特征在于,所述刀座的刀片装配面的边缘上设置有至少一个支撑凸台,所述第一刀片支撑于所述支撑凸台的支撑台面上。
  11. 一种动力头,其特征在于,所述动力头包括:
    壳体,所述壳体包括至少一个外部进风孔;
    盖体,设置在所述壳体上,所述壳体与所述盖体形成第一腔体;
    控制组件,设置在所述壳体上,所述盖体包覆所述控制组件;
    至少一个内部进风孔,设置在所述壳体上,所述内部进风孔位于所述控制组件的侧边;
    至少一个导风板,设置在所述壳体上,所述控制组件与所述导风板形成第二腔体;
    驱动组件,设置在所述壳体的底部,所述驱动组件包括出风孔,所述驱动组件和所述导风板形成第三腔体;
    其中,冷却气流通过所述外部进风孔进入所述第一腔体内,并通过所述内部进风孔进入所述第二腔体和所述第三腔体,以通过所述出风孔流出。
  12. 根据权利要求11所述的动力头,其特征在于,所述盖体上包括一挡风板,所述挡风板接触所述壳体的顶部。
  13. 根据权利要求11所述的动力头,其特征在于,所述控制组件包括:
    外壳,设置在支撑座上;
    散热片,设置在所述外壳上;
    控制元件,设置在所述外壳上,所述散热片和所述控制元件位于所述第二腔体内。
  14. 根据权利要求11所述的动力头,其特征在于,所述驱动组件包括:
    电机座,设置在所述壳体的底部,所述出风孔位于所述电机座上;
    电机,设置在所述电机座上。
  15. 根据权利要求11所述的动力头,其特征在于,所述壳体内还包括电池包腔,所述电池包腔内设置有能量组件。
  16. 根据权利要求11所述的动力头,其特征在于,所述冷却气流在所述第二腔体内的风速大于在所述第三腔体内的风速。
  17. 一种推草机,其特征在于,包括:
    底盘,其底部的两端分别安装有前轮和后轮;
    驱动组件,安装在所述底盘上;
    刀具组件,安装在所述底盘的底部,并与所述驱动组件连接;
    推杆折叠机构,安装在所述底盘上,所述推杆折叠机构包括:
    推杆安装座,固定安装在所述底盘上;
    限位板,安装在所述推杆安装座上,且所述限位板上设置有多个限位结构;
    推杆,其一端与所述限位板转动连接,所述推杆包含第一推杆和第二推杆;
    横杆,安装在所述推杆之间;
    限位组件,位于所述推杆内,所述横杆能带动所述限位组件移动,从而使得所述推杆能够固定在所述限位板的不同位置。
  18. 根据权利要求17所述的推草机,其特征在于,所述限位组件包括一弹销,所述限位 结构至少包括第一限位结构、第二限位结构和第三限位结构,且所述第一限位结构、所述第二限位结构和所述第三限位结构呈圆周方向间隔布置;
    所述第一限位结构上设置有第一限位孔,所述弹销与所述第一限位孔相配合以将所述推杆固定在第一位置;
    所述第二限位结构为一挡板,所述限位组件上的弹销与所述挡板相配合,以将所述推杆固定在第二位置;
    所述第三限位结构上设置第二限位孔,所述限位组件上的弹销与第二限位孔相配合,以将所述推杆固定在第三位置。
  19. 根据权利要求17所述的推草机,其特征在于,所述推杆上设置有缺口,所述横杆通过横杆安装板安装在所述缺口处,且所述横杆安装板与所述缺口相适配。
  20. 根据权利要求18所述的推草机,其特征在于,所述限位组件还包括:
    连接片,所述连接片固定连接在所述弹销的一端,所述连接片通过柱销与所述推杆连接;
    弹簧,所述弹簧套设在所述弹销上,且位于所述连接片和所述弹销前端的垫片之间;
    钢丝绳,所述钢丝绳的一端与所述连接片连接,另一端与所述横杆安装板连接。
PCT/CN2022/099685 2021-06-22 2022-06-20 一种刀具组件、动力头及推草机 WO2022268005A1 (zh)

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CN202110696169.5 2021-06-22
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CN202110787992.7A CN115606397A (zh) 2021-07-13 2021-07-13 一种动力头及园林工具
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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100115901A1 (en) * 2008-11-13 2010-05-13 Hurst John O Lawn mower having collecting and mulching modes
CN102523817A (zh) * 2012-02-22 2012-07-04 南京德朔实业有限公司 多档位把手机构及包含该把手机构的割草机
US20130081500A1 (en) * 2011-09-30 2013-04-04 Mtd Products Inc. Speed control assembly for a self-propelled walk-behind lawn mower
CN204180542U (zh) * 2014-10-22 2015-03-04 常州格力博有限公司 一种割草机刀片固定结构
JP2017225407A (ja) * 2016-06-23 2017-12-28 本田技研工業株式会社 作業機の刈刃交換治具および刈刃交換方法
CN211020036U (zh) * 2018-09-27 2020-07-17 南京德朔实业有限公司 割草机和适用于割草机的刀片组件
CN111492785A (zh) * 2020-04-26 2020-08-07 隆鑫通用动力股份有限公司 一种电动割草机
CN215011685U (zh) * 2021-06-22 2021-12-07 格力博(江苏)股份有限公司 割刀组件及割草机
CN215122159U (zh) * 2021-07-13 2021-12-14 格力博(江苏)股份有限公司 一种动力头及园林工具
CN215379959U (zh) * 2021-08-25 2022-01-04 格力博(江苏)股份有限公司 一种推杆折叠机构及推草机

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100115901A1 (en) * 2008-11-13 2010-05-13 Hurst John O Lawn mower having collecting and mulching modes
US20130081500A1 (en) * 2011-09-30 2013-04-04 Mtd Products Inc. Speed control assembly for a self-propelled walk-behind lawn mower
CN102523817A (zh) * 2012-02-22 2012-07-04 南京德朔实业有限公司 多档位把手机构及包含该把手机构的割草机
CN204180542U (zh) * 2014-10-22 2015-03-04 常州格力博有限公司 一种割草机刀片固定结构
JP2017225407A (ja) * 2016-06-23 2017-12-28 本田技研工業株式会社 作業機の刈刃交換治具および刈刃交換方法
CN211020036U (zh) * 2018-09-27 2020-07-17 南京德朔实业有限公司 割草机和适用于割草机的刀片组件
CN111492785A (zh) * 2020-04-26 2020-08-07 隆鑫通用动力股份有限公司 一种电动割草机
CN215011685U (zh) * 2021-06-22 2021-12-07 格力博(江苏)股份有限公司 割刀组件及割草机
CN215122159U (zh) * 2021-07-13 2021-12-14 格力博(江苏)股份有限公司 一种动力头及园林工具
CN215379959U (zh) * 2021-08-25 2022-01-04 格力博(江苏)股份有限公司 一种推杆折叠机构及推草机

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