WO2020192173A1 - 保护件、刀片组件及割草机 - Google Patents

保护件、刀片组件及割草机 Download PDF

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Publication number
WO2020192173A1
WO2020192173A1 PCT/CN2019/123149 CN2019123149W WO2020192173A1 WO 2020192173 A1 WO2020192173 A1 WO 2020192173A1 CN 2019123149 W CN2019123149 W CN 2019123149W WO 2020192173 A1 WO2020192173 A1 WO 2020192173A1
Authority
WO
WIPO (PCT)
Prior art keywords
blade
cutting
blocking
lawn mower
protector
Prior art date
Application number
PCT/CN2019/123149
Other languages
English (en)
French (fr)
Inventor
安德罗·保罗
Original Assignee
宝时得科技（中国）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 CN201920411566.1U external-priority patent/CN210580043U/zh
Priority claimed from CN201910244691.2A external-priority patent/CN111742692A/zh
Application filed by 宝时得科技（中国）有限公司 filed Critical 宝时得科技（中国）有限公司
Priority to EP19921698.7A priority Critical patent/EP3949713A4/en
Priority to US17/598,706 priority patent/US20220183226A1/en
Publication of WO2020192173A1 publication Critical patent/WO2020192173A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/67—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator
    • A01D34/68—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator with motor driven cutters or wheels
    • A01D34/685—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator with motor driven cutters or wheels with two or more cutters
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/64—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
    • A01D34/66—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle with two or more cutters
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/73—Cutting apparatus
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/81—Casings; Housings
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/82—Other details
    • A01D34/828—Safety devices
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D2101/00—Lawn-mowers

Definitions

  • the invention relates to the field of lawn mowers, in particular to a protective member, a blade assembly and a lawn mower.
  • the blades of the existing lawn mowers are exposed, and there is no direct protection of the blades.
  • the user improperly uses the blades and there is a risk of accidental cuts by the blades when removing the blades, which may lead to the lawn mower.
  • the security is reduced.
  • an object of the present invention is to provide a lawn mower, which can prevent people from being cut by the blade, thereby improving the safety of the lawn mower.
  • a lawn mower which includes:
  • the cutter head is set on the machine body
  • the blade assembly is connected to the cutter head to follow the cutter head to make a rotating movement
  • the blade assembly includes a blade provided with a cutting part and a protective member arranged outside the blade to prevent accidental contact with the cutting part.
  • the blade is connected to the cutter head and at least part of the side edge of the cutting part Expose the protective part to facilitate cutting.
  • the blade includes a blade main body and the cutting portion provided on at least one of two sides of the blade main body, and the protective member includes at least one blocking portion for preventing accidentally touching the cutting portion.
  • the outermost edge of the blocking part located on the same side of the cutting part protrudes from the side edge of the cutting part to prevent accidental touching of the cutting part.
  • the blade includes two cutting parts arranged on both sides of the blade body
  • the protection member includes at least two blocking parts respectively located on both sides of the blade body, and the two blocking parts The outermost edges of the parts all protrude from the corresponding side edges of the cutting part.
  • the protector includes at least two blocking parts located on the same side of the same cutting part, and the at least two blocking parts are arranged at intervals to form a groove between two adjacent blocking parts , So that the corresponding cutting part is exposed in the groove to facilitate cutting.
  • the number of the grooves on the same side of the protector is 2 to 4.
  • the distance between the adjacent blocking portions is 3-7 mm.
  • the distance between the outermost edge of the blocking portion and the side edge of the cutting portion on the same vertical plane is 2-6 mm.
  • the protector includes a front end blocking portion provided at the front end of the blade to prevent accidentally hitting the front edge of the cutting portion, and the side edge of the front end blocking portion protrudes from the side of the front end of the cutting portion edge.
  • the protector further includes an intermediate stopper spaced apart from the front end stopper, and side edges of the intermediate stopper protrude from the cutting portion on the same vertical plane as the intermediate stopper.
  • Side edge the protector further includes a connecting part for connecting the middle blocking part and the front end blocking part, and the outermost edge of the connecting part located on the same side of the cutting part is compared with the connecting part.
  • the side edge of the cutting part on the vertical plane is recessed inward, so that the corresponding side edge of the cutting part is exposed outside the connecting part.
  • the protective member includes a protective main body provided outside the blade and a receiving cavity surrounded by the protective main body for accommodating the blade, and the protective main body includes the blocking portion.
  • the blade includes: a middle part of the blade, the cutting part extending from the middle part of the blade to at least one of the two sides, and a fixing part extending from the middle part of the blade for fixing the blade to the cutter head And a front end extending forward from the middle of the blade.
  • the protective body includes a front end blocking portion covering the front end of the blade, a rear end blocking portion used to cover the fixing portion of the blade, and a connection for connecting the front end blocking portion and the rear end blocking portion Part, the front end blocking part of the protector covers the front edge of the cutting part.
  • the rear end blocking part of the protector completely covers the fixing part of the blade.
  • the protector further includes a middle blocking part extending from the connecting part to both sides, and the outermost edge of the middle blocking part protrudes outward from the side edge of the cutting part;
  • the blade and the protector are integrally formed together.
  • the cutter head includes at least two of the blades and at least two protective members, and the at least two blades are spaced apart in the circumferential direction of the cutter head.
  • the blades correspond one to one.
  • the cutter head is eccentrically arranged below the fuselage, which is biased to one side of the fuselage.
  • the lawn mower further includes a protective cover, the protective cover includes a side protection and a bottom protection, the side protection is located on the side of the cutter head to establish protection on the side of the cutter head A barrier, the bottom protection is located below the cutter head to establish a protection barrier below the cutter head, wherein the bottom protection is provided with a grass inlet.
  • the lawn mower is an intelligent lawn mower that can move and work autonomously.
  • the kinetic energy of the lawn mower is less than 2J, and the linear speed of the blade assembly is less than 2000 m/min.
  • a protector for protecting a blade of a lawn mower the protector is arranged outside the blade and can rotate together with the blade to prevent accidentally hitting the cutting part of the blade, at least Part of the side edges of the cutting portion of the blade are exposed outside the protective member to facilitate cutting.
  • the protective member includes at least one blocking portion for preventing accidental contact with the cutting portion, and the outermost edge of the blocking portion located on the same side of the cutting portion protrudes from the side edge of the cutting portion, To prevent accidentally touching the cutting part.
  • the protector includes at least two blocking parts located on the same side of the same cutting part, and the at least two blocking parts are arranged at intervals to form a groove between two adjacent blocking parts , So that the corresponding cutting part is exposed in the groove to facilitate cutting.
  • the number of the grooves on the same side of the protector is 2 to 4, the distance between the adjacent blocking parts is 3-7mm, and the outermost edge of the blocking part is away from it.
  • the distance between the side edges of the cutting part on the same vertical plane is 2-6 mm.
  • the protector includes a front end blocking portion provided at the front end of the blade to prevent accidentally hitting the front edge of the cutting portion, and the side edge of the front end blocking portion protrudes from the side of the front end of the cutting portion edge.
  • the protector further includes an intermediate stopper spaced apart from the front end stopper, and side edges of the intermediate stopper protrude from the cutting portion on the same vertical plane as the intermediate stopper.
  • Side edge the protector further includes a connecting part for connecting the middle blocking part and the front end blocking part, and the outermost edge of the connecting part located on the same side of the cutting part is compared with the connecting part.
  • the side edge of the cutting part on the vertical plane is recessed inward, so that the corresponding side edge of the cutting part is exposed outside the connecting part.
  • the protective member includes a protective main body provided outside the blade and a receiving cavity surrounded by the protective main body for accommodating the blade, and the protective main body includes the blocking portion.
  • the protector includes a front end blocking part covering the front end part of the blade, a rear end blocking part used to cover the fixing part of the blade, and a front end blocking part connected to The connecting part of the rear end blocking part, and the front end blocking part of the protector covers the front edge of the cutting part.
  • the rear end blocking part of the protector completely covers the fixing part of the blade.
  • the protector further includes a middle blocking part extending from the connecting part to both sides, and the outermost edge of the middle blocking part protrudes outward from the side edge of the cutting part;
  • the blade assembly includes a blade for a lawn mower and a protective member for protecting the blade according to any one of claims 21 to 26, and the blade is installed on the lawn mower.
  • the blade On the cutter head of the machine, the blade includes a blade body and a cutting part arranged on at least one of the two sides of the blade body.
  • the blade and the protector are integrally formed together.
  • a lawn mower which includes:
  • a protector which is arranged on the cutter head assembly and follows the cutter head to make a rotating movement to prevent accidentally hitting the cutting part of the blade, at least part of the side edge of the cutting part is exposed outside the protector To facilitate cutting.
  • Fig. 1 is a schematic diagram of an embodiment of a lawn mower according to an embodiment of the present invention
  • Figure 2 is a schematic diagram of another embodiment of a lawn mower according to an embodiment of the present invention.
  • Figure 3 is a top view of a blade assembly according to an embodiment of the present invention.
  • Figure 4 is a cross-sectional view of a blade assembly according to an embodiment of the present invention.
  • Figure 5 is another perspective view of the blade assembly according to the embodiment of the present invention.
  • Figure 6 is an exploded view of a blade assembly according to an embodiment of the present invention.
  • Fig. 7 is a schematic diagram of a protective member of a blade assembly according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of assembling the protective member and the blade of another specific embodiment of the blade assembly according to the embodiment of the present invention.
  • Fig. 9 is a schematic diagram of the assembly of the protective member and the blade of another specific embodiment of the blade assembly according to the embodiment of the present invention.
  • FIG. 10 is a schematic diagram of assembling the protective member and the blade of another specific embodiment of the blade assembly according to the embodiment of the present invention.
  • FIG. 11 is a schematic diagram of assembly of the protective member and the blade of another specific embodiment of the blade assembly according to the embodiment of the present invention.
  • Fig. 12 is a schematic diagram of the assembly of the protective member of the blade assembly on the cutter head according to the embodiment of the present invention.
  • Blade 2 cutting part 21; blade body 22; blade middle part 23; fixed part 24; front end part 25;
  • Block 37 front block 371; middle block 372; connecting portion 373; protective body 374; rear block 375;
  • Threaded fastener 4
  • Chassis 201 protective cover 202; side protection 203; bottom protection 204; flange 205; body 206.
  • the lawn mower 20 according to an embodiment of the present invention will be described below with reference to FIGS. 1 to 12.
  • the smart lawn mower can move and work autonomously.
  • the lawn mower may also be other lawn mowers, for example, a push lawn mower or a riding lawn mower.
  • the smart lawn mower 20 includes: a body 206, a cutter head 1 and a blade assembly 10.
  • the cutter head 1 can be arranged on the body 206, and the blade assembly 10 is connected to the cutter head 1, so that the blade assembly 10 can rotate together with the cutter head 1 by such arrangement.
  • the blade assembly 10 may include a blade 2 provided with a cutting part 21 and a protective member 3 arranged outside the blade 2 to prevent accidentally hitting the cutting part 21.
  • the blade 2 is connected to the cutter head 1, and at least part of the side edge of the cutting part 21 is exposed to The protective part is outside to facilitate cutting. At least part of the side edges of the cutting portion 21 of the blade 2 are exposed outside the protective member 3 to facilitate cutting.
  • the protective member 3 may directly contact the blade 2 and there may also be a gap between the protective member 3 and the blade 2.
  • the kinetic energy of the lawn mower is less than 2J, and the linear velocity of the blade assembly 10 is less than 2000 m/min, so that when the blade assembly is rotating, when the protective member 3 collides with a human finger, the finger will not be injured.
  • the protective member 3 and the blade can be made of the same material or different materials.
  • the blade assembly 10 includes the blade 2 used on the smart lawn mower 20 and the protector 3 used to protect the blade 2 of the above-mentioned embodiment.
  • the blade 2 is installed on the cutter head 1 of the smart lawn mower 20, and the blade 2 may include a blade body 22 and a cutting part 21 provided on at least one of two sides of the blade body 22. Such a setting can make the blade 2 have a mowing function, thereby ensuring the mowing efficiency of the blade 2.
  • the protector 3 can be provided on the cutter head assembly as an independent component, and rotates along with the cutter head 1.
  • the intelligent lawn mower 20 includes: a body 206, a cutter head assembly and a protector 3.
  • the cutter head assembly is disposed on the body 206.
  • the cutter head assembly may include a cutter head 1 and a blade 2 disposed on the cutter head 1 and provided with a cutting portion 21.
  • the protective member 3 is disposed on the cutter head assembly and follows the cutter head 1 In a rotating motion, the protective member 3 can prevent the cutting portion 21 of the blade 2 from being accidentally touched, and at least part of the side edges of the cutting portion 21 are exposed outside the protective member 3. This arrangement can facilitate the cutting portion 21 of the blade 2 to cut grass.
  • the blade 2 includes a blade main body 22 and a cutting portion 21 provided on at least one of the two sides of the blade main body 22.
  • the protective member 3 may include at least one blocking portion for blocking the cutting portion 21 by mistake. 37.
  • the outermost edge of the blocking portion 37 on the same side of the cutting portion 21 protrudes from the side edge of the cutting portion 21, wherein the blocking portion 37 can prevent people from accidentally touching the cutting portion 21, thereby ensuring the use of the smart lawn mower 20 safety.
  • the blade 2 may include two cutting portions 21 provided on both sides of the blade body 22, and the protective member 3 may include at least two blocking portions 37 respectively located on both sides of the blade body 22.
  • the outermost edges of the parts 37 all protrude from the side edges of the corresponding cutting parts 21.
  • one of the two cutting portions 21 is located on one side of the blade main body 22, the other of the two cutting portions 21 is located on the other side of the blade main body 22, and the two cutting portions 21 are arranged oppositely, This arrangement can make the number and positions of the cutting parts 21 more reasonable, and can make the blade 2 have a mowing function, thereby improving the mowing efficiency of the blade 2.
  • the protective member 3 may include at least two blocking portions 37 located on the same side of the same cutting portion 21, and at least two blocking portions 37 are arranged at intervals to form a gap between two adjacent blocking portions 37.
  • the corresponding cutting portion 21 can be exposed in the groove, so that the blade 2 can cut grass conveniently.
  • the protective member 3 includes two blocking portions 37 located on the same side of the same cutting portion 21, and the two blocking portions 37 are arranged at intervals on the same side of the protective member 3.
  • a groove 31 is formed between 37.
  • the protective member 3 includes three blocking portions 37 located on the same side of the same cutting portion 21, and the three blocking portions 37 are arranged at intervals on two adjacent ones on the same side of the protective member 3.
  • a groove 31 is formed between the blocking portions 37. It should be noted that two grooves 31 are formed on the same side of the same cutting portion 21.
  • FIG. 9 shows that two grooves 31 are formed on the same side of the same cutting portion 21.
  • the protective member 3 includes four blocking portions 37 located on the same side of the same cutting portion 21, and the four blocking portions 37 are arranged at intervals on two adjacent ones on the same side of the protective member 3.
  • a groove 31 is formed between the two blocking portions 37. It should be noted that three grooves 31 are formed on the same side of the same cutting portion 21.
  • the outer surface of the blade 2 is provided with eight blocking parts 37, the eight blocking parts 37 are independently disposed, and four blocking parts 37 of the eight blocking parts 37 are disposed on the cutting part 21. On one side, the other four blocking parts 37 are arranged on the other side of the cutting part 21, and the four blocking parts 37 on the same side are spaced apart, and the blocking parts 37 can prevent people from contacting the blade 2.
  • the protective member 3 is fixedly arranged on the cutter head 1, and the blade 2 is installed on the protective member 3 when the smart lawn mower 20 is required to cut grass.
  • the opening size of the open end of the groove 31 is greater than or equal to 3 mm.
  • the blade assembly 10 cuts the grass, after the grass enters the groove 31 from the open end of the groove 31, the grass will contact the cutting part 21 of the blade 2, and then the blade 2 will cut the grass.
  • the open end of the groove 31 will contact a person, and the opening of the open end of the groove 31 is smaller than the size of a human finger, even if If the user uses improperly or disassembles the blade 2, the cutting part 21 of the blade 2 will not touch the user's fingers.
  • This arrangement can prevent the cutting part 21 of the blade 2 from directly contacting people, which can prevent people from being accidentally cut by the blade 2.
  • the use safety of the smart lawn mower 20 is improved, and the protective member 3 can also protect the blade 2 so as to extend the service life of the blade 2.
  • the cutting portion 21 of the blade 2 can be prevented from directly contacting people, and people can be prevented from being cut by the blade 2, thereby improving the safety of the smart lawn mower 20, and can also protect the blade 2 plays a protective role and can extend the service life of the blade 2.
  • the number of grooves 31 on the same side of the protective member 3 can be set to 2 to 4. As shown in FIGS. 5 to 7, the number of grooves 31 on the same side of the protective member 3 It can be set to two, so that the cutting points on the same side of the protector 3 are two to ensure that the grass is cut, so that the number of grooves 31 on the same side of the protector 3 can be more reasonable. Of course, in another embodiment, as shown in FIG. 10, the number of grooves 31 on the same side of the protector 3 can also be set to 3 according to specific conditions, so that the cut on the same side of the protector 3 There are 3 points to meet actual needs.
  • the distance between the adjacent blocking parts 37 can be set to 3-7mm, this setting can make the opening size of the open end of the groove 31 more moderate, and can ensure that people will not touch the blade 2 through the groove 31, which can better Ensure personal safety.
  • the distance between the outermost edge of the blocking portion 37 and the side edge of the cutting portion 21 on the same vertical plane is 2-6mm, for example: the outermost edge of the blocking portion 37 is away from the side of the cutting portion 21 on the same vertical plane.
  • the distance between the edges can be set to 4 mm, and this setting can space the outermost edge of the blocking portion 37 from the side edge of the cutting portion 21, which can further prevent people from contacting the blade 2.
  • the protector 3 may include a front end stop 371 provided at the front end of the blade 2 to prevent accidentally hitting the front edge of the cutting part 21, and side edges of the front end stop 371 The side edge protruding from the front end of the cutting part 21 can prevent people from contacting the front end of the blade 2 and can further ensure the safety of people.
  • the outermost edges on both sides of the protector 3 can protrude from the cutting part 21, and the cutting part 21 can be arranged on both sides of the blade 2. This arrangement enables the cutting part 21 to be located inside the edge of the protector 3 and can ensure the cutting part 21 No direct contact with people.
  • the protector 3 may further include a middle blocking portion 372 spaced apart from the front end blocking portion 371, and the side edge of the middle blocking portion 372 protrudes from a cut on the same vertical plane as the middle blocking portion 372.
  • the side edge of the part 21, the protector 3 may also include a connecting part 373 for connecting the middle blocking part 372 and the front end blocking part 371.
  • the connecting part 373 is located at the outermost edge of the cutting part 21 on the same side compared to the connecting part 373.
  • the side edge of the cutting portion 21 on the straight plane is recessed inward, so that the side edge of the corresponding cutting portion 21 is exposed outside the connecting portion 373, so that the cutting portion 21 can cut grass, thereby ensuring the operation of the smart lawn mower 20 performance.
  • the blade 2 is housed in the protective member 3.
  • the protective member 3 includes a protective body 374 arranged outside the blade 2 and a receiving cavity surrounded by the protective body 374 for accommodating the blade 2.
  • 374 includes a blocking portion 37. At least part of the side edge of the cutting portion 21 of the blade 2 is exposed to the protector 3 to facilitate cutting. The side edge of the cutting portion 21 of the blade 2 can be connected to the outside to facilitate cutting.
  • the piece 3 can be in direct contact with the blade 2, and there can also be a gap between the protective piece 3 and the blade 2.
  • the blocking portion 37 may be shown in FIG. 9, and the blocking portion 37 includes a front blocking portion 371 and an intermediate blocking portion 372.
  • the blade 2 can also be fixed or assembled with the protective member 3 in other ways.
  • the protective member 3 includes a plurality of blocking portions 37 fixed around the blade 2.
  • the blocking portion 37 may be fixed to the blade 2 by a sticky substance or a fixing member such as screws or pins.
  • the blade 2 is suitable for connecting with the cutter head 1 of the intelligent lawn mower 20, and at least part of the blade 2 protrudes from the edge of the cutter head 1.
  • the blade 2 is arranged in the receiving cavity, and the protective body 374 can be wrapped outside the blade 2. Wherein, the protection body 374 can protect the blade 2 so as to prevent the blade 2 from being damaged.
  • the blade 2 may include: a blade middle part 23, a cutting part 21 extending from the blade middle part 23 to at least one of both sides, a fixing part 24 extending from the blade middle part 23 for fixing the blade 2 to the cutter head 1, and a self-blade middle part 23
  • the front end 25 extending forward.
  • the direction in which the middle portion of the blade 23 extends to both sides refers to the width direction of the blade 2
  • the direction in which the middle portion of the blade 23 extends backward refers to the direction in which the blade 2 is connected to the cutter head 1, and the direction in which the middle portion 23 of the blade extends forward. Refers to the direction of the free end of the blade 2.
  • the protective main body 374 may include a front end blocking portion 371 covering the front end portion 25 of the blade 2, a rear end blocking portion 375 used to cover the fixing portion 24 of the blade 2, and a rear end blocking portion 371 for connecting the front end blocking portion 371 and the rear end blocking portion 375.
  • the connecting portion 373 and the front end blocking portion 371 of the protective member 3 completely cover the front edge of the cutting portion 21. This arrangement can make the protective member 3 better cover the blade 2 and prevent the blade 2 from cutting people.
  • the rear end stop portion 375 of the protector 3 completely covers the fixing portion 24 of the blade 2.
  • this arrangement can prevent the fixing portion 24 of the blade 2 from being exposed to the external environment. Therefore, the fixed portion 24 of the blade 2 can be prevented from being corroded, so that the service life of the blade 2 can be prolonged.
  • the protector 3 may further include a middle blocking part 372 extending from the connecting part 373 to both sides, the outermost edge of the middle blocking part 372 protrudes outward from the side edge of the cutting part 21, the middle blocking part 372 and the front blocking part 371 and the rear
  • This arrangement can expose the cutting portion 21 to the protective member 3, which can ensure that the cutting portion 21 can cut grass, and the groove 31
  • the opening at the open end is smaller than the size of a human finger, and the human finger cannot extend into the groove 31, and the finger cannot touch the cutting part 21.
  • the blade 2 and the protective member 3 are integrally formed together. Such a configuration enables the blade 2 and the protective member 3 to be assembled together reliably, and prevents the blade 2 and the protective member 3 from being separated.
  • the cutter head 1 may include: at least two blades 2 and at least two protective members 3, the at least two blades 2 are spaced apart along the circumferential direction of the cutter head 1, the protective member 3 and the blade 2 One-to-one correspondence, that is to say, a blade 2 is assembled with a protective member 3.
  • This arrangement can make the exterior of each blade 2 covered with the protective member 3, which can ensure that each blade 2 is not in the working process. It hurts people, and the number of blades 2 can be more reasonable, so that the mowing effect of the smart lawn mower 20 can be improved.
  • the cutter head 1 is eccentrically arranged below the body 206, and the cutter head 1 is biased to one side of the body 206. This arrangement can further prevent the user from directly contacting the blade 2 on the cutter head 1. This can better protect users.
  • the smart lawn mower 20 may also include a protective cover 202, which may include a side shield 203 and a bottom shield 204.
  • the side shield 203 may be located on the side of the cutter head 1, so that it can be set at A protective barrier is established on the side of the cutter head 1, and the bottom guard 204 can be located under the cutter head 1.
  • This arrangement can establish a protective barrier under the cutter head 1.
  • the bottom guard 204 is provided with a grass inlet, so that the grass can enter the grass.
  • the mouth enters under the smart lawn mower 20, which can ensure that the blade 2 can cut the grass.
  • the protective cover 202 is connected with the chassis 201, the cutter head 1 is eccentrically arranged below the body 206, the cutter head 1 is biased to one side of the main body 206, the deflection of the side guard 203 and the bottom guard 204 is consistent with the deflection of the cutter head 1, Such arrangement can make the protective cover 202 shield the gap between the chassis 201 and the ground. Wherein, since the protective cover 202 can cover a part of the structure of the cutter head 1, it can further prevent the user from directly contacting the blade 2 on the cutter head 1, so as to better protect the user.
  • the protective cover 202 may include a side shield 203 and a bottom shield 204.
  • the side protection 203 is connected to the chassis 201, the side protection 203 is located between the chassis 201 and the ground, the bottom protection 204 is located below the chassis 201, and the bottom protection 204 is connected to the side protection 203, and the bottom protection 204 is defined by the side protection 203 Part of the structure of the blade assembly 10 is located in the protective space.
  • This configuration can optimize the structure of the protective cover 202, so that the protective cover 202 can better cover the partial structure of the blade assembly 10, and it can also be used for the blade assembly 10. To better protection.
  • the protective cover 202 may be provided with at least one hollow structure, that is, the number of hollow structures is greater than or equal to one.
  • the hollow structure can be arranged on the bottom guard 204.
  • the grass can extend into the hollow structure, and the blade 2 can cut the grass, thereby improving the mowing effect of the smart lawn mower 20.
  • at least one flanging 205 can be provided on the bottom guard 204.
  • the flanging 205 can guide the grass, and the flanging 205 can guide the grass to the blade assembly 10, so that the The blade 2 quickly cuts the grass, which can further improve the mowing efficiency.
  • the protective member 3 for protecting the blade 2 of the smart lawn mower 20 is arranged outside the blade 2 and can rotate together with the blade 2 , wherein the protective member 3 is arranged on the outside of the blade 2 so as to prevent people from touching the cutting part 21 of the blade 2 by mistake. In addition, at least part of the side edges of the cutting portion 21 of the blade 2 are exposed outside the protective member 3, which can facilitate the cutting portion 21 to cut grass.
  • the protective member 3 may include at least one stopper 37 for preventing accidental contact with the cutting part 21.
  • the outermost edge of the stopper 37 on the same side of the cutting part 21 protrudes from the cutting part 21.
  • the side edges are arranged in this way to prevent people from touching the cutting part 21 by mistake.
  • the protective member 3 may include at least two blocking portions 37 located on the same side of the same cutting portion 21, and at least two blocking portions 37 are arranged at intervals to form a gap between two adjacent blocking portions 37.
  • the groove 31 is provided with the groove 31 so that the corresponding cutting part 21 can be exposed in the groove 31, so that the cutting part 21 can cut grass conveniently.
  • the number of grooves 31 on the same side of the protector 3 can be set to 2 to 4. As shown in Figures 5 to 7, the number of grooves 31 on the same side of the protector 3 It can be set to two, so that the cutting points on the same side of the protector 3 are two to ensure that the grass is cut, so that the number of grooves 31 on the same side of the protector 3 can be more reasonable. Of course, in another embodiment, as shown in FIG. 10, the number of grooves 31 on the same side of the protector 3 can also be set to 3 according to specific conditions, so that the cut on the same side of the protector 3 There are 3 points to meet actual needs.
  • the distance between adjacent blocking portions 37 is 3-7 mm, and the distance between the outermost edge of the blocking portion 37 and the side edge of the cutting portion 21 on the same vertical plane is 2-6 mm.
  • the protector 3 may include a front end blocking portion 371 disposed at the front end of the blade 2 to prevent accidentally hitting the front edge of the cutting portion 21, and the side edge of the front end blocking portion 371 protrudes from the cutting portion 21 The side edge of the front end is arranged in this way to prevent people from touching the front end of the blade 2 by mistake.
  • the protector 3 may further include a middle blocking portion 372 spaced apart from the front end blocking portion 371, and the side edge of the middle blocking portion 372 protrudes from a cut on the same vertical plane as the middle blocking portion 372.
  • the side edge of the part 21, the protector 3 may also include a connecting part 373 for connecting the middle blocking part 372 and the front end blocking part 371.
  • the connecting part 373 is located at the outermost edge of the cutting part 21 on the same side compared to the connecting part 373.
  • the side edge of the cutting part 21 on the straight plane is recessed inward, so that the side edge of the corresponding cutting part 21 can be exposed outside the connecting part 373, so that the cutting part 21 exposed outside the connecting part 373 can cut grass.
  • the protection member 3 may include a protection body 374 provided outside the blade 2 and a receiving cavity surrounded by the protection body 374 for accommodating the blade, and the protection body 374 may include a blocking portion 37.
  • the blade 2 may include: a blade middle part 23, a cutting part 21 extending from the blade middle part 23 to at least one of both sides, a fixing part 24 extending from the blade middle part 23 for fixing the blade 2 to the cutter head 1, and a self-blade middle part 23
  • the front end 25 extending forward.
  • the direction in which the middle portion of the blade 23 extends to both sides refers to the width direction of the blade 2
  • the direction in which the middle portion of the blade 23 extends backward refers to the direction in which the blade 2 is connected to the cutter head 1, and the direction in which the middle portion 23 of the blade extends forward. Refers to the direction of the free end of the blade 2.
  • the protector 3 may include a front end stopper 371 covering the front end 25 of the blade 2, a rear end stopper 375 for covering the fixing part 24 of the blade 2, and a rear end stopper 371 for connecting the front end stopper 371 and the rear end stopper 375.
  • the connecting portion 373 and the front end blocking portion 371 of the protector 3 cover the front edge of the cutting portion 21.
  • the rear end stop portion 375 of the protector 3 completely covers the fixing portion 24 of the blade 2. Since the fixing portion 24 does not have a cutting effect, this arrangement can prevent the fixing portion 24 from being exposed to the external environment. Therefore, corrosion of the fixed portion 24 can be avoided, and the service life of the blade 2 can be prolonged.
  • the protector 3 may further include a middle blocking portion 372 extending from the connecting portion 373 to both sides.
  • the outermost edge of the middle blocking portion 372 protrudes outward from the side edge of the cutting portion 21, and the middle blocking portion 372
  • a groove 31 may be provided between the portion 372 and the front end blocking portion 371 and the rear end blocking portion 375.
  • the cutting portion 21 is located in the groove 31, so that the cutting portion 21 can expose the protective member 3 so as to ensure that the cutting portion 21 can cut grass.
  • the blade 2 can be embedded in the protective member 3. This configuration can increase the structural strength of the blade 2 and the protective member 3, and can further prevent the blade 2 from separating from the protective member 3, thereby ensuring the intelligent lawn mower 20 working performance.
  • the protective member 3 may include: a first sheet 32 and a second sheet 33.
  • the first sheet 32 may be provided with a plurality of first grooves 34
  • the plurality of first grooves 34 may be spaced apart along the length direction of the first sheet 32
  • the second sheet 33 may be provided with a plurality of second grooves.
  • the groove body 35, a plurality of second groove bodies 35 can be arranged at intervals along the length direction of the second sheet body 33, the plurality of second groove bodies 35 and the plurality of first groove bodies 34 are arranged in one-to-one correspondence, each second
  • the groove body 35 corresponds to the corresponding first groove body 34 and jointly constitutes a groove 31.
  • the corresponding first groove body 34 and the second groove body 35 constitute a groove 31.
  • a groove 31 is formed on the member 3 to make the structural design of the protective member 3 more reasonable, thereby ensuring the working reliability of the blade assembly 10.
  • the protective member 3 may further include: a first connecting portion 36, and the first connecting portion 36 may be connected between the first sheet body 32 and the second sheet body 33.
  • the first connecting portion 36 can reliably connect the first sheet 32 and the second sheet 33 together, and can prevent the first sheet 32 and the second sheet 33 from being separated, thereby improving the structural strength of the protective member 3 Therefore, the working reliability of the protective member 3 can be ensured, and the first connecting portion 36 wraps the end of the blade 2. This arrangement can prevent the end of the blade 2 from directly contacting the external environment, and can prevent the blade 2 from being damaged. Further extend the service life of the blade 2.
  • At least one of the first piece 32 and the second piece 33 is attached to the blade 2, that is to say, any one of the first piece 32 and the second piece 33 may be attached to the blade 2, or It may be that the first sheet body 32 and the second sheet body 33 are arranged in close contact with the blade 2 at the same time. This arrangement can improve the overall structural strength of the first sheet body 32, the second sheet body 33 and the blade 2 and prevent the blade 2 from being The position of the blade 32, the blade 2 and the second blade 33 produces relative movement, so that the first blade 32, the second blade 33 and the blade 2 can move together.
  • the protective member 3 can be configured as a single-piece sheet structure, and the protective member 3 is attached to the surface of the blade 2. This configuration can optimize the structure of the protective member 3 and make the protective member 3 and the blade 2 better adhere to each other.
  • the blade 2 may include a blade body 22 and two opposite cutting portions 21 located on both sides of the blade body 22, wherein one of the two cutting portions 21 is located on the blade On one side of the main body 22, the other of the two cutting parts 21 is located on the other side of the blade main body 22, and the two cutting parts 21 are arranged oppositely.
  • This arrangement can make the number and position of the cutting parts 21 more reasonable.
  • the blade 2 can be provided with a mowing function, so that the mowing efficiency of the blade 2 can be improved.
  • At least one side of the protective member 3 is provided with a groove 31, that is, one side of the protective member 3 can be provided with a groove 31, or both opposite sides of the protective member 3 are provided with grooves 31, and the blade 2
  • the cutting part 21 is located in the groove 31.
  • the bottom wall of the groove 31 can be set as an arc surface, which can make the structure of the groove 31 more reasonable, and can expose the cutting portion 21 of the blade 2 to the outside of the protective member 3, thereby ensuring that the blade 2 can cut the grass. In turn, the working reliability of the blade assembly 10 can be ensured.
  • At least one of the blade 2 and the protective member 3 is connected to the cutter head 1 through the threaded fastener 4. It should be explained that the blade 2 may be connected to the cutter head 1 through the threaded fastener 4 The connection can also be just that the protective member 3 is connected to the cutter head 1, or the blade 2 and the protective member 3 are connected to the cutter head 1 through the threaded fastener 4 at the same time.
  • the blade 2 and the protector 3 when the blade 2 and the protector 3 are connected to the cutter head 1 through a threaded fastener 4 at the same time, the blade 2 and the protector 3 can be connected to the cutter head 1 by a threaded fastener 4, and this arrangement can connect the blade 2 and the protective member 3 are firmly assembled to the cutter head 1, which can prevent the blade 2 and the protective member 3 from loosening, and also prevent the blade 2 and the protective member 3 from falling off the cutter head 1, thereby improving the working reliability of the blade assembly 10
  • the disassembly and assembly of the blade 2 and the protective part 3 can be facilitated, and the replacement of the blade 2 and the protective part 3 can be facilitated, so that the disassembly and assembly efficiency can be improved, and the composition can be reduced.
  • the number of parts of the blade assembly 10 can improve the assembly efficiency of the blade assembly 10 and can also reduce the production cost of the blade assembly 10.
  • the cutter head 1 may be provided with multiple blades 2, and the multiple blades 2 may be spaced apart along the circumferential direction of the cutter head 1.
  • the cutter head 1 may be provided with three blades. Three blades 2 and three blades 2 can be arranged at intervals along the circumferential direction of the cutter head 1. This arrangement can make the number of blades 2 more reasonable, and can ensure the cutting efficiency of the blade assembly 10, thereby improving the blade assembly 10 Work efficiency.
  • multiple protective members 3, and multiple protective members 3 correspond to multiple blades 2 one-to-one. It should be noted that the number of protective members 3 is the same as the number of blades 2, and one protective member 3 covers one blade. 2, such a setting can ensure that each blade 2 is protected, and it can also ensure that each blade 2 will not directly contact the user.
  • the blade assembly 10 includes the blade 2 used on the smart lawn mower 20 and the protector 3 used to protect the blade 2 of the above-mentioned embodiment.
  • the blade 2 is installed on the cutter head 1 of the smart lawn mower 20, and the blade 2 may include a blade body 22 and a cutting part 21 provided on at least one of two sides of the blade body 22. Such a setting can make the blade 2 have a mowing function, thereby ensuring the mowing efficiency of the blade 2.
  • the blade 2 and the protective member 3 can be integrally formed together. Such a configuration can increase the structural strength of the blade 2 and the protective member 3 and prevent the blade 2 and the protective member 3 from being separated.
  • the protective member 3 may include a protective body 374 covering the blade 2 and a receiving cavity for accommodating the blade 2 surrounded by the protective body 374. At least part of the side edges of the cutting portion 21 are exposed outside the protective member 3 to facilitate cutting. The side edge of the cutting part 21 of the blade 2 communicates with the outside to facilitate cutting, and this arrangement can ensure that the cutting part 21 can cut grass.
  • the outermost edges on both sides of the protective member 3 protrude from the cutting portion 21, so that the arrangement can prevent fingers from contacting the cutting portion 21, and can prevent the fingers from being damaged.
  • the protector 3 may include a front end stop 371 for covering the front end of the blade 2, a rear end stop 375 for covering the rear end of the blade 2, and a connecting part 373 for connecting the front end stop 371 and the rear end stop 375
  • the front end blocking portion 371 covers the front edge of the cutting portion 21. This arrangement can prevent the front edge of the cutting portion 21 from being exposed, and can prevent the front edge of the cutting portion 21 from cutting fingers.
  • the rear end of the protective member 3 completely covers the rear end of the cutting portion 21, so that the arrangement can prevent the rear end of the cutting portion 21 from being exposed, so that the rear end of the cutting portion 21 can be protected.
  • the protector 3 may further include a middle blocking part 372 extending from the connecting part 373 to both sides, the outermost edge of the middle blocking part 372 protrudes outward from the edge of the cutting part 21, the middle blocking part 372 and the front blocking part 371 and the rear end There are grooves between the blocking portions 375.
  • the cutting portion 21 is located in the groove 31, so that the cutting portion 21 can expose the protective member 3 so as to ensure that the cutting portion 21 can cut grass.
  • the blade 2 is adapted to be connected to the cutter head 1 of the smart lawn mower 20.
  • the blade 2 may include: a blade body 22 and a cutting portion 21 arranged on both sides of the blade body 22 and used for cutting.
  • the protective body 374 covers at least part of the cutting Department 21 outside.

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Abstract

一种保护件（3）、刀片组件（10）及割草机（20），割草机（20）包括：机身（206）、刀盘（1）和刀片组件（10）；所述刀盘（1）设置于机身（206）上；所述刀片组件（10）连接于刀盘（1）上以跟随所述刀盘（1）一起做旋转运动；所述刀片组件（10）包括设有切割部（21）的刀片（2）及设置于所述刀片（2）外以防止误碰到所述切割部（21）的保护件（3），所述刀片（2）与所述刀盘（1）连接，至少部分所述切割部（21）的侧边缘暴露于所述保护件（3）外以方便切割。由此，通过设置保护件（3），能够防止刀片（2）的切割部（21）与人直接接触，可以避免人被刀片（2）割伤，从而可以提升割草机（20）的使用安全性，并且，也能够对刀片（2）起到保护作用，可以延长刀片（2）的使用寿命。

Description

保护件、刀片组件及割草机
本申请要求了申请日为2019年3月28日，申请号为201910244691.2和201920411566.1的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及割草机领域，尤其是涉及一种保护件、刀片组件及割草机。
背景技术
相关技术中，现有的割草机的刀片都是裸露的，对刀片没有直接的保护，在使用过程中，用户使用不当、拆卸刀片的时候存在被刀片意外割伤的风险，导致割草机的安全性降低。
发明内容
本发明旨在至少解决现有技术中存在的技术问题之一。为此，本发明的一个目的在于提出一种割草机，该割草机可以避免人被刀片割伤，从而可以提升割草机的使用安全性。
为了实现上述目的，本发明可采用如下技术方案：
一种割草机，其包括：
机身；
刀盘，设置于机身上；
刀片组件，连接于刀盘上以跟随所述刀盘一起做旋转运动；
所述刀片组件包括设有切割部的刀片及设置于所述刀片外以防止误碰到所述切割部的保护件，所述刀片与所述刀盘连接，至少部分所述切割部的侧边缘暴露于所述保护件外以方便切割。
进一步的，所述刀片包括刀片主体及设置于所述刀片主体两侧中至少一侧的所述切割部，所述保护件包括至少一个用于阻挡误碰所述切割部的阻挡部，所述阻挡部位于所述切割部的同一侧的最外缘凸出于所述切割部的侧边缘，以阻挡误碰所述切割部。
进一步的，所述刀片包括设置于所述刀片主体两侧的两个所述切割部，所述保护件包括至少两个分别位于所述刀片主体两侧的所述阻挡部，所述两个阻挡部的最外缘均凸 出于对应的所述切割部的侧边缘。
进一步的，所述保护件包括至少两个位于同一所述切割部同一侧的所述阻挡部，所述至少两个阻挡部间隔设置以在相邻的两个所述阻挡部之间形成凹槽，以使对应的所述切割部暴露于所述凹槽内以方便切割。
进一步的，所述保护件的同一侧的所述凹槽的数量为2至4个。
进一步的，所述相邻的阻挡部之间的距离为3-7mm。
进一步的，所述阻挡部的最外缘距其同一竖直平面上的所述切割部的侧边缘的距离为2-6mm。
进一步的，所述保护件包括设置于所述刀片的前端以防止误碰所述切割部的前边缘的前端阻挡部，所述前端阻挡部的侧边缘凸出于所述切割部的前端的侧边缘。
进一步的，所述保护件还包括与所述前端阻挡部间隔设置的中间阻挡部，所述中间阻挡部的侧边缘凸出于与所述中间阻挡部同一竖直平面上的所述切割部的侧边缘，所述保护件还包括用于连接所述中间阻挡部与所述前端阻挡部的连接部，所述连接部位于所述切割部同一侧的最外缘相较于所述连接部同一竖直平面上的所述切割部的侧边缘向内凹陷，以使对应的所述切割部的侧边缘暴露于所述连接部外。
进一步的，所述保护件包括设置于所述刀片外的保护主体及由所述保护主体围成的用于收容所述刀片的收容腔，所述保护主体包括所述阻挡部。
进一步的，所述刀片包括：刀片中部、自所述刀片中部向两侧中至少一侧延伸的所述切割部、自所述刀片中部延伸用于将所述刀片固定于所述刀盘的固定部和自所述刀片中部向前延伸的前端部。
进一步的，所述保护主体包括包覆所述刀片的前端部的前端阻挡部、用于包覆所述刀片的固定部的后端阻挡部及用于连接前端阻挡部和后端阻挡部的连接部，所述保护件的前端阻挡部包覆所述切割部的前边缘。
进一步的，所述保护件的后端阻挡部完全包覆所述刀片的固定部。
进一步的，所述保护件还包括自所述连接部向两侧延伸的中间阻挡部，所述中间阻挡部的最边缘向外凸出于所述切割部的侧边缘；
所述中间阻挡部与前端阻挡部及后端阻挡部之间均具有凹槽。
进一步的，所述刀片与所述保护件通过一体成型在一起。
进一步的，所述刀盘上包括设有至少两个所述刀片和至少两个所述保护件，至少两个所述刀片沿所述刀盘的周向方向间隔开，所述保护件与所述刀片一一对应。
进一步的，所述刀盘偏心地设置在所述机身下方，其偏向所述机身的一侧。
进一步的，所述割草机还包括保护罩，所述保护罩包括侧部防护和底部防护，所述侧部防护位于所述刀盘的侧方，以在所述刀盘的侧方建立防护屏障，所述底部防护位于所述刀盘的下方，以在所述刀盘的下方建立防护屏障，其中所述底部防护上开设有进草口。
进一步的，所述割草机为能够自主移动和自主工作的智能割草机。
进一步的，所述割草机的动能小于2J，所述刀片组件的线速度小于2000m/min。
本发明还可采用如下技术方案：
一种用于对割草机的刀片进行防护的保护件，所述保护件设置于所述刀片外并可跟随所述刀片一起做旋转运动，以防止误碰到所述刀片的切割部，至少部分所述刀片的切割部的侧边缘暴露于所述保护件外以方便切割。
进一步的，所述保护件包括至少一个用于阻挡误碰所述切割部的阻挡部，所述阻挡部位于所述切割部的同一侧的最外缘凸出于所述切割部的侧边缘，以阻挡误碰所述切割部。
进一步的，所述保护件包括至少两个位于同一所述切割部同一侧的所述阻挡部，所述至少两个阻挡部间隔设置以在相邻的两个所述阻挡部之间形成凹槽，以使对应的所述切割部暴露于所述凹槽内以方便切割。
进一步的，所述保护件的同一侧的所述凹槽的数量为2至4个，相邻的所述阻挡部之间的距离为3-7mm，且所述阻挡部的最外缘距其同一竖直平面上的所述切割部的侧边缘的距离为2-6mm。
进一步的，所述保护件包括设置于所述刀片的前端以防止误碰所述切割部的前边缘的前端阻挡部，所述前端阻挡部的侧边缘凸出于所述切割部的前端的侧边缘。
进一步的，所述保护件还包括与所述前端阻挡部间隔设置的中间阻挡部，所述中间阻挡部的侧边缘凸出于与所述中间阻挡部同一竖直平面上的所述切割部的侧边缘，所述保护件还包括用于连接所述中间阻挡部与所述前端阻挡部的连接部，所述连接部位于所述切割部同一侧的最外缘相较于所述连接部同一竖直平面上的所述切割部的侧边缘向内凹陷，以使对应的所述切割部的侧边缘暴露于所述连接部外。
进一步的，所述保护件包括设置于所述刀片外的保护主体及由所述保护主体围成的用于收容所述刀片的收容腔，所述保护主体包括所述阻挡部。
进一步的，刀片中部、自所述刀片中部向两侧中至少一侧延伸的所述切割部、自所述刀片中部延伸用于将所述刀片固定于所述刀盘的固定部和自所述刀片中部向前延伸的前端部，所述保护件包括包覆所述刀片的前端部的前端阻挡部、用于包覆所述刀片的 固定部的后端阻挡部及用于连接前端阻挡部和后端阻挡部的连接部，所述保护件的前端阻挡部包覆所述切割部的前边缘。
进一步的，所述保护件的后端阻挡部完全包覆所述刀片的固定部。
进一步的，所述保护件还包括自所述连接部向两侧延伸的中间阻挡部，所述中间阻挡部的最边缘向外凸出于所述切割部的侧边缘；
所述中间阻挡部与前端阻挡部及后端阻挡部之间均具有凹槽。
进一步的，所述刀片组件包括用于割草机上的刀片及根据权利要求21至26中任一项所述的用于对所述刀片进行防护的保护件，所述刀片安装于所述割草机的刀盘上，所述刀片包括刀片主体及设置于所述刀片主体两侧中至少一侧的切割部。
进一步的，所述刀片与所述保护件通过一体成型在一起。
本发明还可采用如下技术方案：
一种割草机，其包括：
机身；
刀盘组件，设置于机身上，所述刀盘组件包括刀盘及设置于所述刀盘上且设有切割部的刀片；
保护件，设置于所述刀盘组件上且跟随所述刀盘一起做旋转运动，以防止误碰到所述刀片的切割部，至少部分所述切割部的侧边缘暴露于所述保护件外以方便切割。
附图说明
本发明的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是根据本发明实施例的割草机的一个实施例的示意图；
图2是根据本发明实施例的割草机的另一个实施例的示意图；
图3是根据本发明实施例的刀片组件的俯视图；
图4是根据本发明实施例的刀片组件的剖视图；
图5是根据本发明实施例的刀片组件的另一个角度示意图；
图6是根据本发明实施例的刀片组件的爆炸图；
图7是根据本发明实施例的刀片组件的保护件的示意图；
图8是根据本发明实施例的刀片组件的另一个具体实施例的保护件与刀片的装配示意图；
图9是根据本发明实施例的刀片组件的另一个具体实施例的保护件与刀片的装配示 意图；
图10是根据本发明实施例的刀片组件的另一个具体实施例的保护件与刀片的装配示意图；
图11是根据本发明实施例的刀片组件的另一个具体实施例的保护件与刀片的装配示意图；
图12是根据本发明实施例的刀片组件的保护件设置于刀盘的装配示意图。
附图标记：
刀片组件10；
刀盘1；
刀片2；切割部21；刀片主体22；刀片中部23；固定部24；前端部25；
保护件3；凹槽31；第一片体32；第二片体33；第一槽体34；第二槽体35；第一连接部36；
阻挡部37；前端阻挡部371；中间阻挡部372；连接部373；保护主体374；后端阻挡部375；
螺纹紧固件4；
割草机20；
底盘201；保护罩202；侧部防护203；底部防护204；翻边205；机身206。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。
下面参考图1-图12描述根据本发明实施例的割草机20。在本实施例中，以智能割草机为例，智能割草机能够自主移动和自主工作。当然，在其他实施例中，割草机也可为其他割草机，例如，手推割草机或骑式割草机等等。
如图1-图12所示，根据本发明实施例的智能割草机20包括：机身206、刀盘1和刀片组件10。刀盘1可以设置于机身206上，刀片组件10连接于刀盘1上，这样设置可以使刀片组件10跟随刀盘1一起做旋转运动。刀片组件10可以包括设有切割部21的刀片2及设置于刀片2外以防止误碰到切割部21的保护件3，刀片2与刀盘1连接，至少部分切割部21的侧边缘暴露于所述保护件外以方便切割。至少部分刀片2的切割部21的侧边缘暴露于保护件3外以方便切割，需要说明的是，保护件3可以与刀片2 直接接触，保护件3与刀片2之间也可以有缝隙。割草机的动能小于2J，刀片组件10的线速度小于2000m/min，使得刀片组件在做旋转运动时，保护件3碰撞到人的手指等时，不会撞伤手指。保护件3与刀片可以为同一材料，也可为不同材料。
刀片组件10包括用于智能割草机20上的刀片2和上述实施例的用于对刀片2进行防护的保护件3。刀片2安装于智能割草机20的刀盘1上，刀片2可以包括刀片主体22及设置于刀片主体22两侧中至少一侧的切割部21。如此设置可以使刀片2具有割草功能，从而可以保证刀片2的割草效率。
在另一个实施例中，保护件3可以作为独立部件设置于刀盘组件上，且跟随刀盘1一起做旋转运动。例如，如图1和图2所示，智能割草机20包括：机身206、刀盘组件和保护件3。刀盘组件设置于机身206上，刀盘组件可以包括刀盘1及设置于刀盘1上且设有切割部21的刀片2，保护件3设置于刀盘组件上且跟随刀盘1一起做旋转运动，通过设置保护件3可以防止误碰到刀片2的切割部21，至少部分切割部21的侧边缘暴露于保护件3外，如此设置可以方便刀片2的切割部21切割草。
如图8-图11所示，刀片2包括刀片主体22及设置于刀片主体22两侧中至少一侧的切割部21，保护件3可以包括至少一个用于阻挡误碰切割部21的阻挡部37，阻挡部37位于切割部21的同一侧的最外缘凸出于切割部21的侧边缘，其中，阻挡部37可以阻挡人误碰切割部21，从而可以保证智能割草机20的使用安全性。
如图8-图11所示，刀片2可以包括设置于刀片主体22两侧的两个切割部21，保护件3可以包括至少两个分别位于刀片主体22两侧的阻挡部37，两个阻挡部37的最外缘均凸出于对应的切割部21的侧边缘。其中，两个切割部21中的一个切割部21位于刀片主体22的一侧，两个切割部21中的另一个切割部21位于刀片主体22的另一侧，两个切割部21相对设置，如此设置能够使切割部21的设置数量和位置更加合理，可以使刀片2具有割草功能，从而可以提升刀片2的割草效率。
如图8-图11所示，保护件3可以包括至少两个位于同一切割部21同一侧的阻挡部37，至少两个阻挡部37间隔设置以在相邻的两个阻挡部37之间形成凹槽31，其中，凹槽31可以沿保护件3的厚度方向贯通保护件3，凹槽31的敞开端位于保护件3的边缘，刀片2的切割部21位于凹槽31内。通过设置凹槽31可以使对应的切割部21暴露于凹槽内，从而可以使刀片2方便切割草。
在另一个实施例中，如图8所示，保护件3包括两个位于同一切割部21同一侧的阻挡部37，两个阻挡部37间隔设置以在保护件3同一侧的两个阻挡部37之间形成一个凹槽31。在另一个实施例中，如图9所示，保护件3包括三个位于同一切割部21同一侧 的阻挡部37，三个阻挡部37间隔设置以在保护件3同一侧的相邻的两个阻挡部37之间形成凹槽31，需要说明的是，在同一切割部21同一侧形成两个凹槽31。在另一个实施例中，如图10所示，保护件3包括四个位于同一切割部21同一侧的阻挡部37，四个阻挡部37间隔设置以在保护件3同一侧的相邻的两个阻挡部37之间形成凹槽31，需要说明的是，在同一切割部21同一侧形成三个凹槽31。在另一个实施例中，如图11所示，刀片2的外表面设置八个阻挡部37，八个阻挡部37独立设置，八个阻挡部37中的四个阻挡部37设置于切割部21一侧，另外四个阻挡部37设置于切割部21另一侧，位于同一侧的四个阻挡部37间隔开设置，阻挡部37可以避免人接触到刀片2。在另一个实施例中，如图12所示，保护件3固定设置在刀盘1上，需要智能割草机20割草时，将刀片2安装在保护件3上。
并且，凹槽31的敞开端开口尺寸大于等于3mm，当刀片组件10割草时，草从凹槽31的敞开端进入凹槽31内后，草会与刀片2的切割部21接触，然后刀片2会将草割断。其中，当用户使用不当、拆卸刀片2的时候，通过在保护件3上设置凹槽31，凹槽31的敞开端会与人接触，凹槽31的敞开端开口比人的手指尺寸小，即使用户使用不当、拆卸刀片2，刀片2的切割部21都不会接触到用户的手指，这样设置能够防止刀片2的切割部21与人直接接触，可以避免人被刀片2意外割伤，从而可以提升智能割草机20的使用安全性，并且，保护件3也能够对刀片2起到保护作用，可以延长刀片2的使用寿命。
由此，通过设置保护件3，能够防止刀片2的切割部21与人直接接触，可以避免人被刀片2割伤，从而可以提升智能割草机20的使用安全性，并且，也能够对刀片2起到保护作用，可以延长刀片2的使用寿命。
如图5-图11所示，保护件3的同一侧的凹槽31的数量可以设置为2至4个，如图5至图7所示，保护件3的同一侧的凹槽31的数量可以设置为2个，使保护件3的同一侧的切割点为2个，以保证将草切断，从而可以使保护件3的同一侧的凹槽31的设置数量更加合理。当然，在另一实施例中，也可如图10所示，也可根据具体情况，将保护件3的同一侧的凹槽31的数量设置为3个，使保护件3的同一侧的切割点为3个，以满足实际需求。
相邻的阻挡部37之间的距离可以设置为3-7mm，这样设置能够使凹槽31的敞开端开口尺寸更加适中，可以保证人通过凹槽31不会接触到刀片2，从而可以更好地保证人身安全。
阻挡部37的最外缘距其同一竖直平面上的切割部21的侧边缘的距离为2-6mm，例 如：阻挡部37的最外缘距其同一竖直平面上的切割部21的侧边缘的距离可以设置为4mm，如此设置能够使阻挡部37的最外缘与切割部21的侧边缘间隔开，可以进一步防止人接触刀片2。
在另一个实施例中，如图8-图11所示，保护件3可以包括设置于刀片2的前端以防止误碰切割部21的前边缘的前端阻挡部371，前端阻挡部371的侧边缘凸出于切割部21的前端的侧边缘，这样设置能够防止人接触刀片2的前端，可以进一步保证人的安全性。
保护件3的两侧最外缘可以凸出于切割部21，切割部21可以设置于刀片2的两侧边缘，这样设置能够使切割部21位于保护件3的边缘内侧，可以保证切割部21与人不会直接接触。
如图9-图11所示，保护件3还可以包括与前端阻挡部371间隔设置的中间阻挡部372，中间阻挡部372的侧边缘凸出于与中间阻挡部372同一竖直平面上的切割部21的侧边缘，保护件3还可以包括用于连接中间阻挡部372与前端阻挡部371的连接部373，连接部373位于切割部21同一侧的最外缘相较于连接部373同一竖直平面上的切割部21的侧边缘向内凹陷，以使对应的切割部21的侧边缘暴露于连接部373外，从而可以使切割部21切割草，进而可以保证智能割草机20的工作性能。
如图5-图10所示，刀片2收容于保护件3中，保护件3包括设置于刀片2外的保护主体374及由保护主体374围成的用于收容刀片2的收容腔，保护主体374包括阻挡部37，至少部分刀片2的切割部21的侧边缘暴露于保护件3外以方便切割，刀片2的切割部21的侧边可以与外部连通以方便切割，需要解释的是，保护件3可以与刀片2直接接触，保护件3与刀片2之间也可以有缝隙。具体的，阻挡部37可如图9所示，阻挡部37包括前端阻挡部371及中间阻挡部372。当然，在其他实施例中，刀片2也可通过其他方式与保护件3固定或组装，例如，如图11所示，保护件3包括若干固定于刀片2的四周的阻挡部37，具体的，阻挡部37可通过粘性物质或者螺钉、销钉等固定件固定于刀片2上。
刀片2适于与智能割草机20的刀盘1连接，而且刀片2的至少部分凸出于刀盘1的边缘，刀片2设于收容腔内，保护主体374可以包覆于刀片2外，其中，保护主体374可以对刀片2起到保护作用，从而可以防止刀片2受到损坏。
刀片2可以包括：刀片中部23、自刀片中部23向两侧中至少一侧延伸的切割部21、自刀片中部23延伸用于将刀片2固定于刀盘1的固定部24和自刀片中部23向前延伸的前端部25。需要说明的是，刀片中部23向两侧延伸的方向是指刀片2的宽度方向， 刀片中部23向后延伸的方向是指刀片2与刀盘1连接的方向，刀片中部23向前延伸的方向是指刀片2的自由端方向。
保护主体374可以包括包覆刀片2的前端部25的前端阻挡部371、用于包覆刀片2的固定部24的后端阻挡部375及用于连接前端阻挡部371和后端阻挡部375的连接部373，保护件3的前端阻挡部371完全包覆切割部21的前边缘，如此设置能够使保护件3更好地包覆刀片2，可以防止刀片2割伤人。
保护件3的后端阻挡部375完全包覆刀片2的固定部24，其中，由于，刀片2后端的固定部24不起切割作用，这样设置能够防止刀片2的固定部24裸露在外界环境中，可以避免刀片2的固定部24受到腐蚀，从而可以延长刀片2的使用寿命。
保护件3还可以包括自连接部373向两侧延伸的中间阻挡部372，中间阻挡部372的最边缘向外凸出于切割部21的侧边缘，中间阻挡部372与前端阻挡部371及后端阻挡部375之间均可以具有凹槽31，切割部21位于凹槽31内，这样设置能够使切割部21裸露出保护件3，可以保证切割部21能够切割草，并且，凹槽31的敞开端开口比人的手指尺寸小，人的手指不能伸进凹槽31，手指不会触碰到切割部21。
在另一个实施例中，刀片2与保护件3通过一体成型在一起，如此设置能够使刀片2与保护件3可靠地装配在一起，可以防止刀片2与保护件3分离。
如图12所示，刀盘1上可以包括：设有至少两个刀片2和至少两个保护件3，至少两个刀片2沿刀盘1的周向方向间隔开，保护件3与刀片2一一对应，也就是说，一个刀片2与一个保护件3配合装配，这样设置能够使每个刀片2的外部都包覆有保护件3，可以保证每个刀片2在工作过程中都不会伤到人，并且，也可以使刀片2的设置数量更加合理，从而可以提高智能割草机20的割草效果。
如图1和图2所示，刀盘1偏心地设置在机身206的下方，刀盘1偏向机身206的一侧，如此设置可以进一步防止用户与刀盘1上的刀片2直接接触，从而可以更好地对用户起到保护作用。
如图2所示，智能割草机20还可以包括：保护罩202，保护罩202可以包括侧部防护203和底部防护204，侧部防护203可以位于刀盘1的侧方，这样设置可以在刀盘1的侧方建立防护屏障，底部防护204可以位于刀盘1的下方，如此设置可以在刀盘1的下方建立防护屏障，其中底部防护204上开设有进草口，草能够从进草口进入智能割草机20的下方，可以保证刀片2能够割到草。
保护罩202与底盘201连接，刀盘1偏心地设置在机身206的下方，刀盘1偏向机身206的一侧，侧部防护203及底部防护204的偏向与刀盘1的偏向一致，如此设置可 以使保护罩202遮挡底盘201与地面之间的空隙。其中，由于保护罩202能够将刀盘1的部分结构罩设住，可以进一步防止用户与刀盘1上的刀片2直接接触，从而可以更好地对用户起到保护作用。
如图2所示，保护罩202可以包括：侧部防护203和底部防护204。侧部防护203与底盘201连接，侧部防护203位于底盘201和地面之间，底部防护204位于底盘201的下方，并且底部防护204与侧部防护203连接，底部防护204与侧部防护203限定出保护空间，刀片组件10的部分结构位于保护空间内，这样设置能够优化保护罩202的结构，可以使保护罩202更好地罩设于刀片组件10的部分结构，也可以对刀片组件10起到更好的保护作用。
如图2所示，保护罩202上可以设有至少一个镂空结构，也就是说，镂空结构的设置数量大于等于一个。其中，镂空结构可以设置在底部防护204上，当智能割草机20割草时，草能够伸入镂空结构内，刀片2可以将草割断，从而可以提升智能割草机20的割草效果。并且，底部防护204上可以设置有至少一个翻边205，当智能割草机20割草时，翻边205可以对草起到导向作用，翻边205可以将草导向刀片组件10，从而可以使刀片2快速将草割断，进而可以进一步提升割草效率。
如图1-图12所示，根据本发明实施例的用于对智能割草机20的刀片2进行防护的保护件3，保护件3设置于刀片2外并可跟随刀片2一起做旋转运动，其中，保护件3设置于刀片2的外部，这样设置可以防止人误碰到刀片2的切割部21。并且，至少部分刀片2的切割部21的侧边缘暴露于保护件3外，可以方便切割部21切割草。
如图8-图11所示，保护件3可以包括至少一个用于阻挡误碰切割部21的阻挡部37，阻挡部37位于切割部21的同一侧的最外缘凸出于切割部21的侧边缘，如此设置可以阻挡人误碰切割部21。
如图8-图11所示，保护件3可以包括至少两个位于同一切割部21同一侧的阻挡部37，至少两个阻挡部37间隔设置以在相邻的两个阻挡部37之间形成凹槽31，通过设置凹槽31，可以使对应的切割部21暴露于凹槽31内，从而可以方便切割部21切割草。
如图9-图11所示，保护件3的同一侧的凹槽31的数量可以设置为2至4个，如图5至图7所示，保护件3的同一侧的凹槽31的数量可以设置为2个，使保护件3的同一侧的切割点为2个，以保证将草切断，从而可以使保护件3的同一侧的凹槽31的设置数量更加合理。当然，在另一实施例中，也可如图10所示，也可根据具体情况，将保护件3的同一侧的凹槽31的数量设置为3个，使保护件3的同一侧的切割点为3个，以满足实际需求。相邻的阻挡部37之间的距离为3-7mm，阻挡部37的最外缘距其同一 竖直平面上的切割部21的侧边缘的距离为2-6mm。
如图8-图11所示，保护件3可以包括设置于刀片2的前端以防止误碰切割部21的前边缘的前端阻挡部371，前端阻挡部371的侧边缘凸出于切割部21的前端的侧边缘，如此设置可以防止人误碰刀片2的前端。
如图9-图11所示，保护件3还可以包括与前端阻挡部371间隔设置的中间阻挡部372，中间阻挡部372的侧边缘凸出于与中间阻挡部372同一竖直平面上的切割部21的侧边缘，保护件3还可以包括用于连接中间阻挡部372与前端阻挡部371的连接部373，连接部373位于切割部21同一侧的最外缘相较于连接部373同一竖直平面上的切割部21的侧边缘向内凹陷，这样设置可以使对应的切割部21的侧边缘暴露于连接部373外，从而可以使暴露于连接部373外的切割部21割草。
保护件3可以包括设置于刀片2外的保护主体374及由保护主体374围成的用于收容刀片的收容腔，保护主体374可以包括阻挡部37。
刀片2可以包括：刀片中部23、自刀片中部23向两侧中至少一侧延伸的切割部21、自刀片中部23延伸用于将刀片2固定于刀盘1的固定部24和自刀片中部23向前延伸的前端部25。需要说明的是，刀片中部23向两侧延伸的方向是指刀片2的宽度方向，刀片中部23向后延伸的方向是指刀片2与刀盘1连接的方向，刀片中部23向前延伸的方向是指刀片2的自由端方向。保护件3可以包括包覆刀片2的前端部25的前端阻挡部371、用于包覆刀片2的固定部24的后端阻挡部375及用于连接前端阻挡部371和后端阻挡部375的连接部373，保护件3的前端阻挡部371包覆切割部21的前边缘。
如图8-图11所示，保护件3的后端阻挡部375完全包覆刀片2的固定部24，由于，固定部24不起切割作用，这样设置能够防止固定部24裸露在外界环境中，可以避免固定部24受到腐蚀，从而可以延长刀片2的使用寿命。
如图8-图11所示，保护件3还可以包括自连接部373向两侧延伸的中间阻挡部372，中间阻挡部372的最边缘向外凸出于切割部21的侧边缘，中间阻挡部372与前端阻挡部371及后端阻挡部375之间均可以具有凹槽31。切割部21位于凹槽31内，这样设置能够使切割部21裸露出保护件3，可以保证切割部21能够切割草。
在另一个实施例中，刀片2可以嵌设于保护件3内，这样设置能够提升刀片2与保护件3的结构强度，可以进一步防止刀片2与保护件3分离，从而可以保证智能割草机20的工作性能。
如图3-图7所示，保护件3可以包括：第一片体32和第二片体33。第一片体32可以设置有多个第一槽体34，多个第一槽体34可以沿着第一片体32的长度方向间隔开 设置，第二片体33可以设有多个第二槽体35，多个第二槽体35可以沿着第二片体33的长度方向间隔开设置，多个第二槽体35与多个第一槽体34一一对应设置，每个第二槽体35与相应的第一槽体34对应且共同构造出凹槽31，需要说明的是，对应设置的第一槽体34与第二槽体35构造出凹槽31，如此设置能够在保护件3上形成有凹槽31，可以使保护件3的结构设计更加合理，从而可以保证刀片组件10的工作可靠性。
如图4-图7所示，保护件3还可以包括：第一连接部36，第一连接部36可以连接在第一片体32和第二片体33之间。其中，第一连接部36能够将第一片体32与第二片体33可靠地连接在一起，可以防止第一片体32与第二片体33分离，从而可以提升保护件3的结构强度，进而可以保证保护件3的工作可靠性，并且，第一连接部36包裹刀片2的端部，这样设置能够避免刀片2的端部与外界环境直接接触，可以防止刀片2受到损坏，从而可以进一步延长刀片2的使用寿命。
第一片体32和第二片体33中的至少一个与刀片2贴合，也就是说，可以是第一片体32和第二片体33中的任意一个与刀片2贴合设置，也可以是第一片体32和第二片体33同时与刀片2贴合设置，如此设置能够提升第一片体32、第二片体33和刀片2整体结构强度，可以防止刀片2与第一片体32、刀片2与第二片体33之间的位置产生相对移动，从而可以保证第一片体32、第二片体33和刀片2一起移动。
保护件3可以设置为单片片状结构，保护件3贴设于刀片2的表面，这样设置能够优化保护件3的结构，可以使保护件3与刀片2更好地贴设在一起。
如图3、图5和图6所示，刀片2可以包括刀片主体22和位于刀片主体22的两侧的两条相对的切割部21，其中两条切割部21中的一条切割部21位于刀片主体22的一侧，两条切割部21中的另一条切割部21位于刀片主体22的另一侧，两条切割部21相对设置，如此设置能够使切割部21的设置数量和位置更加合理，可以使刀片2具有割草功能，从而可以提升刀片2的割草效率。
保护件3的至少一侧设有凹槽31，也就是说，可以将保护件3的一侧设置有凹槽31，也可以将保护件3的相对两侧都设置有凹槽31，刀片2的切割部21位于凹槽31内。其中，当刀片组件10割草时，通过在保护件3上设置凹槽31，能够防止刀片2的切割部21直接与用户直接接触，可以防止用户被割伤。
凹槽31的底壁可以设置为弧形面，这样设置能够使凹槽31的结构更加合理，可以使刀片2的切割部21裸露在保护件3外部，从而可以保证刀片2能够把草割断，进而可以保证刀片组件10的工作可靠性。
如图3-图5所示，刀片2和保护件3中的至少一个通过螺纹紧固件4与刀盘1连接， 需要解释的是，可以只是刀片2通过螺纹紧固件4与刀盘1连接，也可以只是保护件3与刀盘1连接，还可以是刀片2和保护件3同时通过螺纹紧固件4与刀盘1连接。其中，当刀片2和保护件3同时通过螺纹紧固件4与刀盘1连接时，刀片2和保护件3可以通过一个螺纹紧固件4与刀盘1连接在一起，如此设置能够将刀片2和保护件3稳固地装配到刀盘1上，可以防止刀片2和保护件3松动，也可以防止刀片2和保护件3从刀盘1上脱落，从而可以提升刀片组件10的工作可靠性，并且，当需要更换刀片2和保护件3时，能够方便刀片2和保护件3的拆装，可以便于刀片2和保护件3的更换，从而可以提升拆装效率，同时，也能够减少构成刀片组件10的零部件数量，可以提升刀片组件10的装配效率，也可以降低刀片组件10的生产成本。
如图3、图5和图6所示，刀盘1上可以设有多个刀片2，多个刀片2可以沿刀盘1的周向方向间隔开设置，例如：刀盘1上可以设有三个刀片2，三个刀片2可以沿刀盘1的周向方向间隔开设置，这样设置能够使刀片2的设置数量更加合理，可以保证刀片组件10的割草效率，从而可以提升刀片组件10的工作效率。
保护件3可以设置为多个，多个保护件3与多个刀片2一一对应，需要说明的是，保护件3的设置数量与刀片2的设置数量相同，一个保护件3套在一个刀片2上，如此设置可以保证对每个刀片2都起到保护作用，也可以保证每个刀片2都不会与用户直接接触。
根据本发明实施例的刀片组件10，包括用于智能割草机20上的刀片2和上述实施例的用于对刀片2进行防护的保护件3。刀片2安装于智能割草机20的刀盘1上，刀片2可以包括刀片主体22及设置于刀片主体22两侧中至少一侧的切割部21。如此设置可以使刀片2具有割草功能，从而可以保证刀片2的割草效率。
刀片2与保护件3可以通过一体成型在一起，如此设置可以提升刀片2与保护件3的结构强度，可以防止刀片2与保护件3分开。
保护件3可以包括包覆于刀片2外的保护主体374及由保护主体374围成的用于收容刀片2的收容腔，至少部分切割部21的侧边缘暴露于保护件3外以方便切割，刀片2的切割部21的侧边与外部连通以方便切割，如此设置可以保证切割部21能够切割到草。
保护件3的两侧最外缘凸出于切割部21，这样设置能够避免手指接触到切割部21，可以防止手指受到损坏。
保护件3可以包括用于包覆刀片2前端的前端阻挡部371，用于包覆刀片2后端的后端阻挡部375，及用于连接前端阻挡部371和后端阻挡部375的连接部373，前端阻挡部371包覆切割部21的前边缘，如此设置能够防止切割部21的前边缘裸露，可以防 止切割部21的前边缘割伤手指。
保护件3的后端完全包覆切割部21的后端，这样设置可以防止切割部21的后端裸露，从而可以对切割部21的后端起到保护作用。
保护件3还可以包括自连接部373向两侧延伸的中间阻挡部372，中间阻挡部372的最边缘向外凸出于切割部21的边缘，中间阻挡部372与前端阻挡部371及后端阻挡部375之间均具有凹槽。切割部21位于凹槽31内，这样设置能够使切割部21裸露出保护件3，可以保证切割部21能够切割草。
刀片2适于与智能割草机20的刀盘1连接，刀片2可以包括：刀片主体22及设置于刀片主体22两侧且用于切割的切割部21，保护主体374至少包覆于部分切割部21外。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本发明的实施例，本领域的普通技术人员可以理解：在不脱离本发明的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由权利要求及其等同物限定。

Claims (33)

  1. 一种割草机，其特征在于，包括：
    机身；
    刀盘，设置于机身上；
    刀片组件，连接于刀盘上以跟随所述刀盘一起做旋转运动；
    所述刀片组件包括设有切割部的刀片及设置于所述刀片外以防止误碰到所述切割部的保护件，所述刀片与所述刀盘连接，至少部分所述切割部的侧边缘暴露于所述保护件外以方便切割。
  2. 根据权利要求1所述的割草机，其特征在于，所述刀片包括刀片主体及设置于所述刀片主体两侧中至少一侧的所述切割部，所述保护件包括至少一个用于阻挡误碰所述切割部的阻挡部，所述阻挡部位于所述切割部的同一侧的最外缘凸出于所述切割部的侧边缘，以阻挡误碰所述切割部。
  3. 根据权利要求2所述的割草机，其特征在于，所述刀片包括设置于所述刀片主体两侧的两个所述切割部，所述保护件包括至少两个分别位于所述刀片主体两侧的所述阻挡部，所述两个阻挡部的最外缘均凸出于对应的所述切割部的侧边缘。
  4. 根据权利要求2所述的割草机，其特征在于，所述保护件包括至少两个位于同一所述切割部同一侧的所述阻挡部，所述至少两个阻挡部间隔设置以在相邻的两个所述阻挡部之间形成凹槽，以使对应的所述切割部暴露于所述凹槽内以方便切割。
  5. 根据权利要求4所述的割草机，其特征在于，所述保护件的同一侧的所述凹槽的数量为2至4个。
  6. 根据权利要求4所述的割草机，其特征在于，所述相邻的阻挡部之间的距离为3-7mm。
  7. 根据权利要求4所述的割草机，其特征在于，所述阻挡部的最外缘距其同一竖直平面上的所述切割部的侧边缘的距离为2-6mm。
  8. 根据权利要求2所述的割草机，其特征在于，所述保护件包括设置于所述刀片的前端以防止误碰所述切割部的前边缘的前端阻挡部，所述前端阻挡部的侧边缘凸出于所述切割部的前端的侧边缘。
  9. 根据权利要求8所述的割草机，其特征在于，所述保护件还包括与所述前端阻挡部间隔设置的中间阻挡部，所述中间阻挡部的侧边缘凸出于与所述中间阻挡部同一竖直平面上的所述切割部的侧边缘，所述保护件还包括用于连接所述中间阻挡部与所述前端阻挡部的连接部，所述连接部位于所述切割部同一侧的最外缘相较于所述连接部同一竖 直平面上的所述切割部的侧边缘向内凹陷，以使对应的所述切割部的侧边缘暴露于所述连接部外。
  10. 根据权利要求2至9中任意一项所述的割草机，其特征在于：所述保护件包括设置于所述刀片外的保护主体及由所述保护主体围成的用于收容所述刀片的收容腔，所述保护主体包括所述阻挡部。
  11. 根据权利要求10所述的割草机，其特征在于，所述刀片包括：刀片中部、自所述刀片中部向两侧中至少一侧延伸的所述切割部、自所述刀片中部延伸用于将所述刀片固定于所述刀盘的固定部和自所述刀片中部向前延伸的前端部。
  12. 根据权利要求11所述的割草机，其特征在于，所述保护主体包括包覆所述刀片的前端部的前端阻挡部、用于包覆所述刀片的固定部的后端阻挡部及用于连接前端阻挡部和后端阻挡部的连接部，所述保护件的前端阻挡部包覆所述切割部的前边缘。
  13. 根据权利要求12所述的割草机，其特征在于，所述保护件的后端阻挡部完全包覆所述刀片的固定部。
  14. 根据权利要求12所述的割草机，其特征在于，所述保护件还包括自所述连接部向两侧延伸的中间阻挡部，所述中间阻挡部的最边缘向外凸出于所述切割部的侧边缘；
    所述中间阻挡部与前端阻挡部及后端阻挡部之间均具有凹槽。
  15. 根据权利要求1至9中任意一项所述的割草机，其特征在于，所述刀片与所述保护件通过一体成型在一起。
  16. 根据权利要求1至9中任意一项所述的割草机，其特征在于，所述刀盘上包括设有至少两个所述刀片和至少两个所述保护件，至少两个所述刀片沿所述刀盘的周向方向间隔开，所述保护件与所述刀片一一对应。
  17. 根据权利要求1至9中任意一项所述的割草机，其特征在于，所述刀盘偏心地设置在所述机身下方，其偏向所述机身的一侧。
  18. 根据权利要求1至9中任意一项所述的割草机，其特征在于，所述割草机还包括保护罩，所述保护罩包括侧部防护和底部防护，所述侧部防护位于所述刀盘的侧方，以在所述刀盘的侧方建立防护屏障，所述底部防护位于所述刀盘的下方，以在所述刀盘的下方建立防护屏障，其中所述底部防护上开设有进草口。
  19. 根据权利要求1所述的割草机，其特征在于，所述割草机为能够自主移动和自主工作的智能割草机。
  20. 根据权利要求1所述的割草机，其特征在于，所述割草机的动能小于2J，所述刀片组件的线速度小于2000m/min。
  21. 一种用于对割草机的刀片进行防护的保护件，其特征在于，
    所述保护件设置于所述刀片外并可跟随所述刀片一起做旋转运动，以防止误碰到所述刀片的切割部，至少部分所述刀片的切割部的侧边缘暴露于所述保护件外以方便切割。
  22. 根据权利要求21所述的保护件，其特征在于，所述保护件包括至少一个用于阻挡误碰所述切割部的阻挡部，所述阻挡部位于所述切割部的同一侧的最外缘凸出于所述切割部的侧边缘，以阻挡误碰所述切割部。
  23. 根据权利要求22所述的保护件，其特征在于，所述保护件包括至少两个位于同一所述切割部同一侧的所述阻挡部，所述至少两个阻挡部间隔设置以在相邻的两个所述阻挡部之间形成凹槽，以使对应的所述切割部暴露于所述凹槽内以方便切割。
  24. 根据权利要求23所述的保护件，其特征在于，所述保护件的同一侧的所述凹槽的数量为2至4个，相邻的所述阻挡部之间的距离为3-7mm，且所述阻挡部的最外缘距其同一竖直平面上的所述切割部的侧边缘的距离为2-6mm。
  25. 根据权利要求23所述的保护件，其特征在于，所述保护件包括设置于所述刀片的前端以防止误碰所述切割部的前边缘的前端阻挡部，所述前端阻挡部的侧边缘凸出于所述切割部的前端的侧边缘。
  26. 根据权利要求25所述的保护件，其特征在于，所述保护件还包括与所述前端阻挡部间隔设置的中间阻挡部，所述中间阻挡部的侧边缘凸出于与所述中间阻挡部同一竖直平面上的所述切割部的侧边缘，所述保护件还包括用于连接所述中间阻挡部与所述前端阻挡部的连接部，所述连接部位于所述切割部同一侧的最外缘相较于所述连接部同一竖直平面上的所述切割部的侧边缘向内凹陷，以使对应的所述切割部的侧边缘暴露于所述连接部外。
  27. 根据权利要求21至26中任意一项所述的保护件，其特征在于，所述保护件包括设置于所述刀片外的保护主体及由所述保护主体围成的用于收容所述刀片的收容腔，所述保护主体包括所述阻挡部。
  28. 根据权利要求27所述的保护件，其特征在于，所述刀片包括：刀片中部、自所述刀片中部向两侧中至少一侧延伸的所述切割部、自所述刀片中部延伸用于将所述刀片固定于所述刀盘的固定部和自所述刀片中部向前延伸的前端部，所述保护件包括包覆所述刀片的前端部的前端阻挡部、用于包覆所述刀片的固定部的后端阻挡部及用于连接前端阻挡部和后端阻挡部的连接部，所述保护件的前端阻挡部包覆所述切割部的前边缘。
  29. 根据权利要求28所述的保护件，其特征在于，所述保护件的后端阻挡部完全包 覆所述刀片的固定部。
  30. 根据权利要求28所述的保护件，其特征在于，所述保护件还包括自所述连接部向两侧延伸的中间阻挡部，所述中间阻挡部的最边缘向外凸出于所述切割部的侧边缘；
    所述中间阻挡部与前端阻挡部及后端阻挡部之间均具有凹槽。
  31. 一种用于割草机的刀片组件，其特征在于，所述刀片组件包括用于割草机上的刀片及根据权利要求21至26中任一项所述的用于对所述刀片进行防护的保护件，所述刀片安装于所述割草机的刀盘上，所述刀片包括刀片主体及设置于所述刀片主体两侧中至少一侧的切割部。
  32. 根据权利要求31所述的刀片组件，其特征在于，所述刀片与所述保护件通过一体成型在一起。
  33. 一种割草机，其特征在于，包括：
    机身；
    刀盘组件，设置于机身上，所述刀盘组件包括刀盘及设置于所述刀盘上且设有切割部的刀片；
    保护件，设置于所述刀盘组件上且跟随所述刀盘一起做旋转运动，以防止误碰到所述刀片的切割部，至少部分所述切割部的侧边缘暴露于所述保护件外以方便切割。
PCT/CN2019/123149 2019-03-28 2019-12-05 保护件、刀片组件及割草机 WO2020192173A1 (zh)

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