WO2017101859A1 - Tondeuse à gazon - Google Patents

Tondeuse à gazon Download PDF

Info

Publication number
WO2017101859A1
WO2017101859A1 PCT/CN2016/110421 CN2016110421W WO2017101859A1 WO 2017101859 A1 WO2017101859 A1 WO 2017101859A1 CN 2016110421 W CN2016110421 W CN 2016110421W WO 2017101859 A1 WO2017101859 A1 WO 2017101859A1
Authority
WO
WIPO (PCT)
Prior art keywords
cutting
cutting member
lawn mower
grass
cavity
Prior art date
Application number
PCT/CN2016/110421
Other languages
English (en)
Chinese (zh)
Inventor
赵凤丽
查霞红
付长帅
Original Assignee
苏州宝时得电动工具有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 苏州宝时得电动工具有限公司 filed Critical 苏州宝时得电动工具有限公司
Publication of WO2017101859A1 publication Critical patent/WO2017101859A1/fr

Links

Images

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

Definitions

  • the present invention relates to a lawn mower, and more particularly to a lawn mower having a plurality of cutting members.
  • a lawn mower is a tool that helps people maintain the lawn.
  • a common lawn mower is a lawn mower that uses a cutting member that rotates about a vertical axis.
  • One problem with existing lawn mowers is their large size, especially for hand-pushing lawn mowers, where the bulky fuselage makes the machine effortless.
  • the cutting width of the mower should not be too small.
  • the longitudinal dimension of the mower is often much larger than The horizontal size causes the mower to be bulky and bulky.
  • the problem to be solved by the present invention is to provide a multi-cutting mower having a compact structure in the longitudinal direction of the casing.
  • a lawn mower comprising: a casing having a longitudinal direction parallel to a forward direction of the lawn mower; and a transverse direction parallel to the working plane and perpendicular to a forward direction of the lawn mower; a cutting motor Installed in the housing to provide a driving force; the lawn mower includes at least two cutting members, the cutting member being driven by the cutting motor to rotate to perform a mowing operation, wherein at least two of the cutting members are The cutting range has overlapping portions along the longitudinal direction of the housing, the ratio of the longitudinal dimension to the lateral dimension of the housing being less than 1.5.
  • the lawn mower comprises a casing having a longitudinal direction parallel to a forward direction of the lawn mower, and a transverse direction parallel to the working plane and perpendicular to a forward direction of the lawn mower; cutting a motor mounted to the housing to provide a driving force; the lawn mower comprising at least three cutting members, the cutting member being driven by the cutting motor to perform a mowing operation in rotation, wherein at least two of the cutting members
  • the cutting range has overlapping portions along the longitudinal direction of the housing, and the ratio of the longitudinal dimension to the lateral dimension of the housing is less than 1.5.
  • the ratio of the longitudinal dimension to the lateral dimension of the housing is less than one.
  • the lawn mower comprises three of the cutting members, the first cutting member and the second cutting member are arranged On both sides of the housing, a third cutting member is disposed between the first cutting member and the second cutting member and disposed on a front side of the first cutting member and the second cutting member .
  • the lawn mower further comprises two front wheels respectively disposed on two sides of the third cutting member.
  • the cutting diameter of the third cutting member is smaller than the cutting diameter of the first cutting member and/or the second cutting member.
  • the lawn mower includes three of the cutting members, the first cutting member and the second cutting member are disposed on both sides of the casing, and the third cutting member is disposed on the first cutting member and the Between the second cutting members, and disposed on the rear side of the first cutting member and the second cutting member.
  • the lawn mower further includes a front wheel disposed between the first cutting member and the second cutting member.
  • the cutting diameter of the third cutting member is smaller than the cutting diameter of the first cutting member and/or the second cutting member.
  • the lawn mower comprises at least three cutting motors, and the cutting motors are connected in one-to-one correspondence with the cutting members.
  • the invention has the beneficial effects of reducing the volume and weight of the lawn mower by reducing the cutting range of the plurality of cutting members along the longitudinal portion of the casing to reduce the longitudinal dimension of the casing. Make the user's operation effortless.
  • Another problem to be solved by the present invention is to provide a multi-cutting mower having a cutting member having a separate cutting cavity and a separate grass channel.
  • a lawn mower comprising: a housing; a cutting motor mounted to the housing to provide a driving force; and a plurality of cutting members driven by the cutting motor to perform mowing work in rotation; the lawn mower further includes a plurality of cutting cavities corresponding to the cutting member, each cutting cavity housing one of the cutting members, the cutting cavities being independent of each other; and a plurality of rows of grass corresponding to the cutting cavity one-to-one Channels, each of the grass passages being in communication with one of the cutting chambers, the grass passages being independent of one another.
  • the cutting cavity comprises a cavity wall covering the cutting member, the cavity wall at least partially surrounding the cutting member along a periphery of a cutting range of the cutting member, the cavity wall being provided There is an opening connecting the grass passage.
  • each of the cavity walls is independent of one another.
  • the opening diameter of the cavity wall is 1/5-1/2 of the diameter of the cutting member.
  • the size of one end of the grass cutting passage connecting the cutting cavity is smaller than the size of one end connected to the grass opening.
  • the lawn mower includes a plurality of cutting motors, and the cutting motors are coupled to the cutting members in a one-to-one correspondence.
  • the lawn mower comprises at least 3 of the cutting members.
  • the grass discharge passage is gathered from the cutting cavity toward the rear of the casing, and the cutting members have different rotation directions.
  • the grass passages are parallel to each other, and the cutting members rotate in the same direction.
  • the invention has the beneficial effects of improving the efficiency of the multi-cut mower by setting a separate cutting cavity and a separate grassing passage for each cutting member.
  • Another problem to be solved by the present invention is to provide a multi-cutter lawn mower that can be effectively cut to the side.
  • a lawn mower comprising: a casing; a wheel set mounted on a chassis of the casing, including a front wheel and a rear wheel; a cutting motor mounted to the casing to provide a driving force; at least 2 cutting pieces Driven by the cutting motor to perform mowing work in rotation; the cutting members are staggered, and the distance between the foremost end of the cutting range of the cutting member and the foremost end of the lawn mower is not more than 100 mm.
  • the lawn mower comprises a casing; a wheel set mounted on the chassis of the casing, comprising a front wheel and a rear wheel; a cutting motor mounted on the casing to provide a driving force; at least 3 cuttings And the mowing work is performed by the cutting motor to rotate; the cutting members are staggered, and a distance between a front end of the cutting range of the cutting member and a front end of the lawn mower is no more than 100 mm.
  • the front wheel is at least partially located behind the foremost end of the cutting range of the cutting member.
  • the front end of the front wheel exceeds the foremost end of the cutting range of the cutting member by a distance of not more than 80 mm.
  • the front end of the front wheel exceeds the foremost end of the cutting range of the cutting member by a distance of no more than 40 mm.
  • the front end of the front wheel does not exceed the foremost end of the cutting range of the cutting member.
  • the front end of the cutting range of the cutting member is not more than the front end of the lawn mower Over 60mm.
  • the lawn mower comprises three cutting members, the first cutting member and the second cutting member are disposed on two sides of the casing, and the third cutting member is disposed on the first cutting member and the second cutting Between the pieces, and disposed on the front side of the first cutting piece and the second cutting piece; comprising two front wheels respectively disposed on both sides of the third cutting piece.
  • the lawn mower comprises three cutting members, the first cutting member and the second cutting member are disposed on two sides of the casing, and the third cutting member is disposed on the first cutting member and the second cutting Between the pieces, and disposed on the rear side of the first cutting piece and the second cutting piece; comprising a front wheel disposed between the first cutting piece and the second cutting piece.
  • the lawn mower comprises three cutting members, the first cutting member and the second cutting member are disposed on two sides of the casing, and the third cutting member is disposed on the first cutting member and the second cutting Between the pieces, and disposed on the front side of the first cutting piece and the second cutting piece; including one front wheel disposed on the rear side of the first cutting piece and the second cutting piece.
  • the beneficial effects of the present invention are: by staggering a plurality of cutting members, reducing the distance between the foremost end of the cutting range of the cutting member and the foremost end of the lawn mower, so that the lawn mower can be effective Cut to the side.
  • Another problem to be solved by the present invention is to provide a lawn mower that can achieve the benefits of higher grass efficiency, mowing efficiency, and higher efficiency of grass discharge.
  • a lawn mower comprising: a housing; a cutting motor mounted to the housing to provide a driving force; and a plurality of cutting members driven by the cutting motor to perform mowing work in rotation; the lawn mower further includes a plurality of cutting cavities corresponding to the cutting member, the cutting cavities being independent of each other; at least one grass channel corresponding to the cutting cavity, the at least one grass channel communicating with the cutting cavity .
  • the plurality of cutting cavities are in one-to-one correspondence with the plurality of cutting members, and each of the cutting cavities houses one of the cutting members.
  • the number of the grass passages is the same as the number of the cutting cavities, each of the grass passages is in communication with the one cutting cavity, and the grass passages are disposed independently of each other.
  • the cutting cavity comprises a cavity wall covering the cutting member, each of the cavity walls being independent of one another.
  • the cutting cavity comprises a cavity wall covering the cutting member
  • the lawn mower further comprises a notch formed between adjacent cavity walls of the cutting cavity, the notch being far away
  • the direction of the work plane is concave.
  • the cavity wall comprises a top wall and a cavity sidewall connected to the top wall and surrounding the cutting member in a circumferential direction, the notch recess being formed on a sidewall of the cavity of the adjacent cutting cavity, The depth of the notch is less than the depth of the sidewall of the cavity in a direction perpendicular to the direction of advancement of the mower and perpendicular to the working plane.
  • the depth of the notch is greater than or equal to 1/2 of the depth of the sidewall of the cavity.
  • the depth of the notch ranges from 40 mm to 90 mm.
  • the gap has a width ranging from 90 mm to 140 mm.
  • the cutting cavity comprises a cavity wall covering the cutting member, the cavity wall at least partially surrounding the cutting member along a periphery of a cutting range of the cutting member, the cavity wall being provided There is a cavity opening connecting the grass passage.
  • the cavity opening diameter of the cavity wall is 1/5-1/2 of the diameter of the cutting member.
  • the plurality of cutting members have the same direction of rotation.
  • the plurality of cutting members comprise a first cutting member and a second cutting member, the first cutting member is cut to form a first mowing surface, and the second cutting member is cut to form a second mowing surface,
  • the first mowing surface and the second mowing surface at least partially overlap in a forward direction of the lawn mower, and the area where the first mowing surface overlaps the second mowing surface is perpendicular to a forward direction of the lawn mower
  • the dimension in the direction parallel to the working plane ranges from 0 to 30 mm.
  • the lawn mower includes a plurality of cutting motors, and the cutting motors are coupled to the cutting members in a one-to-one correspondence.
  • the lawn mower comprises three of the cutting members, the first cutting member and the second cutting member are disposed on two sides of the casing, and the third cutting member is disposed on the first cutting member and the first Between the two cutting members, and disposed on the rear side of the first cutting member and the second cutting member.
  • the rear portion of the casing is provided with a grass opening communicating with the grass passage, and the size of one end of the grass passage connecting the cutting cavity is smaller than the size of one end connecting the grass opening.
  • the longitudinal axis of the adjacent grass passages has an angle of greater than or equal to 10 degrees and less than or equal to 45 degrees.
  • the plurality of grass passages are parallel to each other.
  • the present invention has at least the following beneficial effects:
  • Another problem to be solved by the present invention is to provide a lawn mower that can effectively reduce the volumetric power ratio.
  • a lawn mower comprising: a housing; a cutting motor mounted to the housing to provide a driving force; a plurality of cutting members driven by the cutting motor to perform mowing work; at least 2 of the cutting
  • the cutting range of the pieces has overlapping portions in the longitudinal direction of the casing such that the ratio of the total output power of the mower to the volume of the mower is 6 kW/m 3 or more .
  • the ratio of the total output power of the lawn mower to the volume of the lawn mower is greater than or equal to 7.5 kW/m 3 .
  • the lawn mower has a volume of 0.16 m 3 or less.
  • the total output power of the lawn mower is greater than or equal to 1 kW.
  • the ratio of the total output power of the lawn mower to the mass of the lawn mower is greater than or equal to 0.04 kW/kg.
  • the ratio of the total output power of the lawn mower to the mass of the lawn mower is greater than or equal to 0.06 kW/kg.
  • the mower has a mass of 23 kg or less.
  • the lawn mower includes three of the cutting members, the first cutting member and the second cutting member are disposed on both sides of the casing, and the third cutting member is disposed on the first cutting member and the Between the second cutting members, and disposed on the front side of the first cutting member and the second cutting member.
  • the lawn mower further comprises two front wheels respectively disposed on two sides of the third cutting member.
  • the lawn mower includes three of the cutting members, the first cutting member and the second cutting member are disposed on both sides of the casing, and the third cutting member is disposed on the first cutting member and the Between the second cutting members, and disposed on the rear side of the first cutting member and the second cutting member.
  • the lawn mower further includes a front wheel disposed between the first cutting member and the second cutting member.
  • the lawn mower includes a plurality of cutting motors, and the cutting motors are coupled to the cutting members in a one-to-one correspondence.
  • the lawn mower includes a battery pack to provide electrical energy for the operation of the lawn mower.
  • the above lawn mower uses a plurality of discrete cutting members instead of the conventional single cutting members.
  • the cutting range of at least two of the cutting members has an overlapping portion in the longitudinal direction of the casing such that the ratio of the total output power of the lawn mower to the volume of the lawn mower is 6 kW/m 3 or more .
  • the volume is significantly reduced at the same power. Therefore, the above mower can effectively reduce the volumetric power ratio, and the volume can be made smaller when the required output power is constant.
  • Figure 1 is a structural view of a lawn mower according to a first embodiment of the present invention.
  • Figure 2 is a cross-sectional view taken along line A-A of Figure 1.
  • Figure 3 is a structural view of a lawn mower according to a second embodiment of the present invention.
  • Figure 4 is a structural view of a lawn mower in the prior art.
  • Figure 5 is a structural view of a lawn mower according to a third embodiment of the present invention.
  • Figure 6 is a structural view of a lawn mower according to a fifth embodiment of the present invention.
  • Figure 7 is a structural view of a lawn mower according to another embodiment of the present invention.
  • Figure 8 is a structural view of a lawn mower according to an eighth embodiment of the present invention.
  • Fig. 9 is a circuit diagram showing an AC power supply circuit of a lawn mower according to another embodiment of the present invention.
  • Figure 10 is a structural view of a lawn mower according to a ninth embodiment of the present invention.
  • Figure 11 is a cross-sectional view of the gap of the lawn mower of Figure 10.
  • Fig. 12 is a structural view showing a notch in the lawn mower shown in Fig. 10 as seen from the K direction.
  • Figure 13 is a configuration diagram of a lawn mower according to a tenth embodiment of the present invention.
  • Figure 14 is a configuration diagram of a lawn mower according to an eleventh embodiment of the present invention.
  • Figure 15 is a structural view of a lawn mower according to a twelfth embodiment of the present invention.
  • Rowing channel 7' rowing channel 7" rowing channel
  • Fig. 1 is a structural view showing a lawn mower 1 according to a first embodiment of the present invention.
  • the lawn mower 1 is placed on the ground in a direction perpendicular to the ground, in a direction parallel to the direction of advancement of the lawn mower 1, in the longitudinal direction of the lawn mower 1, perpendicular to the lawn mower 1
  • the direction of the forward direction is the lateral direction of the lawn mower 1, with the upper side of the drawing being the right side of the lawn mower 1 and the lower side of the drawing being the left side of the lawn mower 1.
  • the lawn mower 1 includes: a casing 2; a cutting motor (not shown) mounted to the casing 2 to provide a driving force; and a plurality of cutting members 3 driven by the cutting motor to perform mowing work in rotation; the lawn mower 1 further
  • the cutting cavity 5 includes a plurality of cutting cavities 1 corresponding to the cutting member 3, each cutting cavity housings one cutting member, and the cutting cavity 5 is independent of each other; and a plurality of rows of grass passages 7 corresponding to the cutting cavity 5, each The grass passages are connected to a cutting chamber, and the grass passages 7 are independent of each other.
  • the cutting motor is housed in the casing 2 of the lawn mower 1 and is used to drive the cutting member 3 to rotate about a vertical axis to perform a mowing operation.
  • the lawn mower includes three cutting members 3, which are a first cutting member 301, a second cutting member 302, and a third cutting member 303, respectively.
  • the chassis of the housing 2 is provided with three cutting cavities 5 corresponding to the cutting member 3, which are respectively a first cutting cavity 501, a second cutting cavity 502 and a third cutting cavity 503, each cutting cavity
  • the first cutting cavity 501 receives the first cutting member 301
  • the second cutting cavity 502 receives the second cutting member 302
  • the third cutting cavity 503 receives the third cutting member 303.
  • the first cutting cavity 501, the second cutting cavity 502, and the third cutting cavity 503 are independent of each other.
  • the bottom chassis of the casing is further provided with three grass passages 7 corresponding to the cutting member 3, which are a first row of grass passages 701, a second row of grass passages 702 and a third row of grass passages 703, each of which is arranged
  • the channel is connected to a cutting cavity.
  • the first row of grass channels 701 communicate with the first cutting cavity 501
  • the second row of grass channels 702 communicate with the second cutting cavity 502
  • the third row of grass channels 703 communicate with the third cutting cavity. body.
  • the first row of grass channels 701, the second row of grass channels 702, and the third row of grass channels 703 are independent of each other.
  • the rotation of the cutting member 3 forms an air flow in the cutting chamber 5, and the cut grass flows by the flow of the air in the cutting chamber 5, and flows to the grass passage 7 corresponding to the cutting chamber 5.
  • the other end of the grass discharge passage 7 is connected to a straw box (not shown) at the rear of the casing 2, and the cut grass is flowed into the straw box through the grass discharge passage 7.
  • the cutting cavities 5 are independent of each other, and the grasses cut by the different cutting members 3 are prevented from colliding with each other, which affects the efficiency of the grass discharging.
  • the grass discharge passages 7 are independent of each other, and the grasses of different flow directions are prevented from colliding with each other, causing the grass to accumulate at the grass discharge port 9.
  • Figure 2 is a cross-sectional view taken along line AA of Figure 1, in conjunction with Figures 1 and 2, in the present embodiment, the cutting cavity 5 includes a cavity wall 11 covering the cutting member 3, the cavity wall 11 at least partially along the cutting extent of the cutting member 3. of The periphery encloses the cutting member 3, and the cavity wall 11 is provided with an opening 17 connecting the grass passage 7. 2, the cavity wall 11 covers the cutting member 3 above the cutting member 3, the cavity wall 11 comprising a side wall 15 surrounding the cutting member 3. The cutting member 3 is rotated to form a cutting radius, and the cavity side wall 15 has a circular contour having a radius slightly larger than the cutting radius.
  • the cavity wall 11 is provided with an opening 17 connecting the grass discharge passage 7, and the grass in the cutting cavity 5 flows into the grass passage 5 through the opening 17 of the cavity wall 11 to enter the grass box.
  • the cut grass is held in the cutting cavity 5 through the cavity wall 11, rotates under the flow of air formed by the cutting member 3, and flows to the opening 17 of the cavity wall 11.
  • the contour of the cavity wall 11 enables the cutting cavity 5 to function to accommodate the cutting member 3 and guide the flow of the grass, thereby improving cutting efficiency and grassing efficiency.
  • each cavity wall is independent of each other.
  • Each cutting cavity has a respective cavity wall.
  • each cutting cavity has a respective cavity sidewall, and each cutting cavity is disconnected from each other.
  • the cavity walls are independent of each other to prevent the grass cutting by different cutting parts from flowing in different cutting cavities, avoiding collision of grasses of different flow directions, and affecting cutting efficiency.
  • the opening 17 of the cavity wall 11 has a diameter of 1/5 - 1/2 of the diameter of the cutting member 3. Specifically, in the present embodiment, the opening 17 of the cavity wall 11 has a diameter which is 1/3 of the diameter of the cutting member 3.
  • the opening 17 of the cavity wall 11 is for guiding the grass in the cutting cavity 5 to the grass discharge passage 7, and the diameter of the opening 17 is 1/3 of the diameter of the cutting member 3, which can satisfy the grass in the cutting cavity 5 in time. Discharge, while not disturbing the swirling airflow within the cutting chamber 5 because the opening 17 is too large.
  • the lawn mower 1 includes a plurality of cutting motors, and the cutting motors are connected to the cutting members 3 in one-to-one correspondence.
  • the lawn mower 1 includes three cutting motors that drive the first cutting member 301, the second cutting member 302, and the third cutting member 303, respectively.
  • the one-to-one correspondence between the cutting motor and the cutting member 3 facilitates flexible control of the cutting work.
  • Each cutting motor drives a cutting member, reducing the power requirements of the motor, thereby reducing costs.
  • the lawn mower 1 includes at least three cutting members.
  • the lawn mower includes a first cutting member 301, a second cutting member 302, and a third cutting member 303.
  • XX is the longitudinal axis of the housing
  • the cutting members 3 are staggered
  • the third cutting member 303 is disposed on the longitudinal axis XX
  • the first cutting member 301 and the second cutting member 302 are disposed on both sides
  • first The cutting range of the cutting member 301 and the cutting range of the third cutting member 303 at least partially overlap in the lateral direction of the housing 2
  • the cutting range of the second cutting member 302 and the cutting range of the third cutting member 303 are at least partially transverse to the housing 2 overlapping.
  • Such an arrangement ensures that the cutting range of the cutting member 3 can cover the cutting width of the lawn mower 1 and avoid secondary cutting.
  • the grass discharge passage 7 is gathered from the cutting cavity 5 toward the rear of the casing 2, and the rotation direction of the cutting member 3 is different.
  • the first row of grass channels 701 and the second row of grass channels 702 are respectively connected to the outer half of the first cutting cavity 501 and the second cutting cavity 502, the first row of grass channels 701 and the second row
  • the other end of the grass channel 702 is brought closer to the longitudinal axis XX of the housing 2 and is connected to the grass opening 9 at the rear of the housing 2.
  • the first row of grass passages 701 are connected to the right half of the first cutting cavity 501, and extend clockwise toward the grass opening 9.
  • the first cutting member 301 rotates clockwise, and the cut grass edge is cut.
  • the first row of grass passages 701 flow into the clockwise direction and flow into the grass box via the first row of grass passages 701.
  • the second row of grass passages 702 are connected to the left half of the second cutting cavity 502, extend counterclockwise toward the grass opening 9, the second cutting member 302 rotates counterclockwise, and the cut grass is counterclockwise It flows into the second row of grass passages 702 and flows into the grass box via the second row of grass passages 702.
  • the direction of the third row of grass passages 703 may coincide with the direction of the first row of grass passages 701 or the second row of grass passages 702, and the direction of rotation of the third cutting member 303 corresponding to the first cutting member 301 or the second cutting member 302 The direction of rotation is the same.
  • the grass discharge passage 7 is gathered from the cutting cavity 5 toward the rear of the casing 2, and the lateral dimension of the casing 2 can be reduced, so that the structure of the lawn mower 1 is compact.
  • FIG. 7 is a structural view of a lawn mower 1 according to another embodiment of the present invention.
  • the lawn mower 1 is substantially identical to the main structure of the first embodiment, with the difference that the grass passages 7' are parallel to each other and the rotation direction of the cutting member 3 is the same.
  • the cutting members 3 are rotated in the same direction, and the grass passages 7' are connected to the same half of the corresponding cutting cavities 5, and extend in the same direction to the grass opening 9 at the rear of the casing 2.
  • the rotation direction of the cutting member 3 is clockwise, and the grass passage 7' is connected to the right half of the corresponding cutting cavity 5, and extends clockwise to the rear of the casing 2, and the grass is arranged.
  • the direction of the channel 7' is substantially parallel.
  • the grass cut by the cutting member 3 flows into the grass passage 7' in a clockwise direction and flows into the grass box via the grass passage 7'.
  • the rotation direction of the cutting member 3 is the same, the grass passages 7' are parallel to each other, and the grass is flowed into the straw box in the same direction, thereby avoiding mutual interference, high grass collection efficiency, and the grass can flow to the grass box to distance the grass.
  • the position of the mouth 9 is far away, and does not collide with each other in the vicinity of the row of grasses 9 and accumulates in one place, so that the grassy grass has increased the grassy rate and the number of grasses is reduced.
  • the rotation directions of the cutting members 3 are the same, so that the cutting motor for driving the respective cutting members has versatility, the cutting members 3 are also versatile, and the manufacturing cost and maintenance cost of the lawn mower 1 are lower.
  • the lawn mower 1 is substantially identical to the main structure of the first embodiment, with the difference that the size of one end of the grass cutting passage 7 connected to the cutting cavity 5 is smaller than the end of the grass connecting port 9 size.
  • One end of the grass passage connecting the cutting cavity 5 is an inlet, and one end of the grass opening 9 is an outlet, and the inlet size of the grass passage is smaller than the outlet size.
  • the channel has a narrow front and a wide width, so that the air pressure at the inlet of the grass channel is greater than the air pressure at the outlet, which facilitates the rapid flow and discharge of the grass in the channel, thereby improving the grass collection efficiency.
  • FIG. 3 is a structural view of a lawn mower according to a second embodiment of the present invention.
  • the lawn mower 1 comprises: a casing 2 having a longitudinal direction parallel to the advancing direction of the lawn mower 1 and a transverse direction parallel to the working plane and perpendicular to the advancing direction of the lawn mower 1; a cutting motor (not shown), mounted Providing a driving force to the casing 2; the lawn mower 1 further comprises at least two cutting members 3, the cutting member 3 being driven by the cutting motor to perform the mowing work in rotation, wherein the cutting range of the at least two cutting members is along the casing 2 There is an overlap portion in the longitudinal direction, and the ratio of the longitudinal dimension L of the casing 2 to the lateral dimension W is less than 1.5.
  • the cutting motor is housed in the casing 2, and the cutting member 3 is driven to rotate about a vertical axis to perform a mowing operation.
  • the longitudinal dimension L of the casing 2 is the dimension between the front end of the casing 2 to the rear end of the casing 2
  • the lateral dimension W of the casing 2 is the dimension between the left end of the casing 2 to the right end of the casing 2.
  • FIG. 4 is a structural view of a lawn mower in the prior art.
  • the mower uses a single cutting member that rotates around the vertical axis.
  • the longitudinal dimension of the casing is much larger than the lateral dimension of the casing, making the mower bulky, bulky, and laborious.
  • the lawn mower 1 includes three cutting members, and the total cutting width of the cutting member 3 is the same as the cutting width of the single cutting member in FIG. 4, and the cutting diameter d of each cutting member is much smaller than the cutting width D.
  • the cutting range of the three cutting members has an overlapping portion in the longitudinal direction of the casing 2, so that the total cutting range of the cutting member 3 is much smaller than the cutting width D along the longitudinal direction of the casing 2. Thereby, the housing 2 can obtain a compact structure in the longitudinal direction, reduce the volume of the housing 2, and reduce the weight of the lawn mower 1.
  • the lawn mower 1 includes a first cutting member 301, a second cutting member 302, and a third cutting member 303.
  • the first cutting member 301 and the second cutting member 302 are disposed on the housing 2.
  • a third cutting member 303 is disposed between the first cutting member 301 and the second cutting member 302 and disposed on the front side of the first cutting member 301 and the second cutting member 302.
  • each cutting member has the same cutting diameter d.
  • the first cutting member 301 and the second cutting member 302 are symmetrically disposed on both sides of the housing 2 with respect to the longitudinal axis XX.
  • the first cutting member 301 is disposed on the right side of the housing 2, and the second cutting member 302 is disposed on the housing 2 Left side.
  • the third cutting member 303 is disposed on the longitudinal axis X-X, and the cutting diameter d is slightly larger than the spacing ⁇ w of the cutting range of the first cutting member 301 and the second cutting member 302.
  • the cutting width D is the first cutting member 301 The distance from the right end of the cutting range to the left end of the cutting range of the second cutting member 302.
  • the cutting diameter d of each cutting member is slightly larger than 1/3 of the cutting width D.
  • the third cutting member 303 is disposed on the front side of the first cutting member 301 and the second cutting member 302.
  • the third cutting member 303 is closer to the first cutting member 301 and the second cutting member 302 on the longitudinal axis XX, and the cutting members are generally The smaller the dimension l of the cutting range along the longitudinal direction of the casing 2 is. Since each cutting member is located at the same working plane, the distance d1 from the center of rotation of the third cutting 303 member to the center of rotation of the first cutting member 301 / the second cutting member 302 must be greater than the cutting radius of the third cutting member 303 and the first cutting member The sum of the cutting radii of the 301/second cutting member 302 is to ensure that the cutting members do not interfere with each other during the working process, and the safety of the lawn mower 1 is ensured.
  • the rotation center of the third cutting member 303 and the rotation center of the first cutting member 301 / the second cutting member 302 in the longitudinal direction of the housing 2 reach a minimum value, that is, the total of each cutting member
  • the cutting range reaches a minimum along the dimension l of the longitudinal direction of the housing 2.
  • the minimum value is less than 2/3 of the cutting width D.
  • the lawn mower 1 includes two front wheels, which are respectively disposed on both sides of the third cutting member 303.
  • the lawn mower 1 includes a first front wheel 19 and a second front wheel 21 symmetrically disposed on both sides of the third cutting member 303.
  • the first front wheel 19 is located on the right side of the third cutting member 303 and on the front side of the first cutting member 301, and is disposed adjacent to the first cutting member 301 without interfering with the first cutting member 301.
  • the second front wheel 21 is located on the left side of the third cutting member 303 and on the front side of the second cutting member 302, and is disposed adjacent to the second cutting member 302 without interfering with the second cutting member 302.
  • the arrangement of the front wheels enables the housing 2 to further obtain a compact structure.
  • the cutting member 3 having a cutting diameter d of 190 mm is used, and the cutting width D of the lawn mower 1 is 560 mm, and the lateral dimension W of the casing 2 is not less than 560 mm.
  • the housing 2 is The lateral dimension W is set to 580 mm.
  • the range of d1 is 190-394 mm, specifically, the value of d1 is set to 220 mm; the range of d2 is 43-348 mm, specifically, the value of d2 is set to 119 mm; the cutting range is along the longitudinal direction of the casing 2.
  • the dimension l ranges from 235 to 538 mm.
  • the value of l is set to 309 mm; the longitudinal dimension L of the casing 2 ranges from 567 to 870 mm, and specifically, the value of L is 639 mm; therefore, the housing 2
  • the ratio of the longitudinal dimension L to the lateral dimension W of the casing 2 is between 0.98 and 1.5.
  • the L/W value is 1.10. Table 1 lists the other sets of parameter values in this embodiment.
  • the casing 2 has a compact structure in the longitudinal direction, which reduces the volume of the lawn mower 1, reduces the weight of the lawn mower 1, and makes the user's operation labor-saving.
  • FIG. 5 is a structural view of a lawn mower 1 according to a third embodiment of the present invention, and the structure of the lawn mower 1 is substantially identical to that of the second embodiment, with the difference that the cutting diameter d' of the third cutting member 303 is smaller than that of the third embodiment.
  • the cutting diameter d" of one cutting member 301 and/or the second cutting member 302. In the case where the cutting width D is kept constant, the cutting diameter d' of the third cutting member 303 is reduced, and the first cutting member 301 is correspondingly enlarged. And a cutting diameter d" of the second cutting member 302.
  • the cutting diameter d' of the third cutting member 303 is set to 150 mm
  • the cutting diameter d" of the first cutting member 301 and the second cutting member 302 is set to 210 mm
  • the range of d1 is 180-385 mm, specifically, The value of d1 is set to 212 mm
  • the range of d2 is 42-342 mm, specifically, the value of d2 is set to 119 mm
  • the range of the cutting range along the longitudinal direction of the housing 2 is 221-522 mm, specifically, the value of l is Set to 299 mm
  • the longitudinal dimension L of the housing 2 ranges from 545 to 870 mm, specifically, the value of L is 621 mm
  • the lateral dimension W of the housing 2 is 580 mm; therefore, the longitudinal dimension L of the housing 2 and the housing 2
  • the ratio of the lateral dimension W is between 0.94 and 1.5, and specifically, the value of L/W is 1.07.
  • Table 2 lists the other sets of parameter values in this embodiment.
  • the cutting diameter d' of the third cutting member 303 is made. Less than the cutting diameter d" of the first cutting member 301 and the second cutting member 302, the size l of the cutting range along the longitudinal direction of the casing 2 can be further reduced, so that the structure of the casing 2 is more compact, and the mower 1 is smaller in size and weight. Lighter, user operation is more labor-saving.
  • the structure of the lawn mower 1 is basically the same as that of the second embodiment, with the difference that the lawn mower 1 includes three cutting members 3, a first cutting member 301 and The second cutting member 302 is disposed on both sides of the housing 2, and the third cutting member 303 is disposed between the first cutting member 301 and the second cutting member 302, and disposed at the first cutting member 301 and the second cutting member 302 Back side.
  • the third cutting member 303 is disposed on the rear side of the first cutting member 301 and the second cutting member 302, and the third cutting member 303 is closer to the first cutting member 301 and the second cutting member 302 on the longitudinal axis XX.
  • each cutting member is located at the same working plane, the distance d3 from the center of rotation of the third cutting member 303 to the center of rotation of the first cutting member 301 / the second cutting member 302 must be greater than the cutting radius of the third cutting member 303 and the first cutting member.
  • the sum of the cutting radii of the 301/second cutting member 302 is to ensure that the cutting members do not interfere with each other during the working process, and the safety of the lawn mower 1 is ensured.
  • the center of rotation of the third cutting member 303 and the center of rotation of the first cutting member 301 / the second cutting member 302 in the longitudinal direction of the housing 2 reach a minimum value, that is, the total of each cutting member
  • the cutting range reaches a minimum along the dimension l of the longitudinal direction of the housing.
  • the minimum value is less than 2/3 of the cutting width D.
  • the third cutting member 303 is disposed on the rear side of the first cutting member 301 and the second cutting member 302, and specifically, is disposed between the first cutting member 301, the second cutting member 302 and the rear wheel assembly. In the accommodating space, the distance between the front end of the cutting range and the rear end of the casing is reduced as compared with the structure in the first embodiment, so that the longitudinal dimension L of the casing 2 is reduced.
  • the lawn mower 1 includes a front wheel 23 disposed between the first cutting member 301 and the second cutting member 302. As shown in FIG. 1 , the front wheel 23 is disposed between the first cutting member 301 and the second cutting member 302 and on the front side of the third cutting member 303, and does not interfere with the third cutting member 303, and is close to the first The three cutting members 303 are disposed. The front wheel 23 is disposed in the housing space formed by the first cutting member 301, the second cutting member 302, and the third cutting member 303, so that the housing 2 has a compact structure, further reducing the dimension of the housing 2 in the longitudinal direction.
  • the cutting member 3 having a cutting diameter d of 190 mm is used, and the cutting width D of the lawn mower 1 is 560 mm, and the lateral dimension W of the casing 2 is not less than 560 mm.
  • the housing 2 is The lateral dimension W is set to 580 mm.
  • the range of d3 is 190-479 mm, specifically, the value of d3 is set to 220 mm; the range of d4 is 43-442 mm, specifically, the value of d4 is set to 119 mm; the cutting range is along the longitudinal direction of the casing.
  • the size l ranges from 235 to 634 mm, specifically, The value of l is set to 309 mm; the longitudinal dimension L of the casing 2 ranges from 492 to 870 mm, specifically, the value of L is 515 mm; therefore, the ratio of the longitudinal dimension L of the casing 2 to the lateral dimension W of the casing 2 Between 0.85 and 1.5, specifically, the value of L/W is 0.89.
  • Table 3 lists the other sets of parameter values in this embodiment.
  • the cutting member 3 is disposed on the other parts of the casing 3 and the casing 2, such as the front wheel 23 and the rear wheel assembly, without interference.
  • the longitudinal dimension L of the casing 2 is reduced, thereby reducing the ratio of the longitudinal dimension L of the casing 2 to the transverse dimension W, achieving a ratio of the longitudinal dimension L of the casing 2 to the transverse dimension W of less than one.
  • the housing 2 of the lawn mower 1 has a more compact structure, so that the lawn mower 1 is smaller in size, lighter in weight, and less user-operated.
  • FIG. 6 is a structural view of a lawn mower 1 according to a fifth embodiment of the present invention, and the structure of the lawn mower 1 is substantially the same as that of the fourth embodiment, with the difference that the cutting diameter of the third cutting member 303 is smaller than the first cutting.
  • the cutting diameter of the piece 301 and/or the second cutting piece 302. In the case where the cutting width D is kept constant, the cutting diameter of the third cutting member 303 is reduced, and the cutting diameters of the first cutting member 301 and the second cutting member 302 are correspondingly increased.
  • the cutting diameter d' of the third cutting member 303 is set to 150 mm
  • the cutting diameter d" of the first cutting member 301 and the second cutting member 302 is set to 210 mm
  • the range of d3 is 180-508 mm, specifically, The value of d3 is set to 212 mm
  • the range of d4 is 41-477 mm, specifically, the value of d4 is set to 119 mm
  • the range of the cutting range along the longitudinal direction of the housing 2 is 221-656 mm, specifically, the value of l is Set to 299 mm
  • the longitudinal dimension L of the housing 2 ranges from 484 to 870 mm, specifically, the value of L is 513 mm
  • the lateral dimension W of the housing 2 is 580 mm; therefore, the longitudinal dimension of the housing 2 and the housing 2
  • the ratio of the lateral dimensions is between 0.83 and 1.5, and specifically, the value of L/W is 0.88.
  • Table 4 lists the other sets of parameter values in this embodiment, so that the cutting diameter of the third cutting member 303 is smaller than the first cutting.
  • the cutting diameter of the piece 301 and the second cutting piece 302 can further reduce the dimension l of the cutting range along the longitudinal direction of the casing 2, so that the structure of the casing 2 is more compact, the mower 1 is smaller in size, lighter in weight, and more user-operated. Labor saving.
  • the structure of the lawn mower 1 is substantially identical to the main structure of the second embodiment, with the difference that the lawn mower 1 includes at least three cutting motors, and the cutting motor is in one-to-one correspondence with the cutting member 3. connection.
  • the lawn mower 1 includes three cutting motors that drive the first cutting member 301, the second cutting member 302, and the third cutting member 303, respectively.
  • the cutting diameter of each cutting member is small, and the output power required for driving each cutting member is small, and therefore, when each cutting member is driven by a separate cutting motor, each cutting is performed.
  • the motor is small and lightweight.
  • the total weight of the three cutting motors is smaller than the weight of the cutting motor when the cutting member is driven by a single cutting motor, and therefore, the weight of the lawn mower 1 is reduced.
  • the cutting motor for driving each cutting member has a small output power, and thus the cost is low, and the total cost of the three cutting motors is lower than the cost of cutting the motor when the cutting member is driven by a single cutting motor, so that independent cutting is employed. When the motor drives the cutting member, the cost of the lawn mower 1 can be reduced.
  • the lawn mower 1 includes: a casing 2; a wheel set mounted on the chassis of the casing 2, including a front wheel and a rear wheel; and a cutting motor (not shown), Mounted in the casing 2 to provide driving force; at least two cutting members 3, driven by a cutting motor to perform mowing work in rotation; the cutting members 3 are staggered, and the cutting edge 3 is at the forefront of the cutting range and the front end of the mower 1
  • the distance ⁇ d does not exceed 100 mm.
  • the front wheel is at least partially located at the foremost end of the cutting range of the cutting member 3. Specifically, the front end of the front wheel exceeds the foremost end of the cutting range of the cutting member 3 by a distance of not more than 80 mm.
  • the cutting member 3 and the wheel set are mounted on the chassis of the casing 2.
  • the cutting member 3 is driven by a cutting motor housed in the casing 2 to perform a mowing operation in rotation.
  • the wheel set includes a front wheel that is mounted at the front of the housing 2. The front wheel is placed closer to the cutting member 3, and the front end of the cutting range and the front end of the lawn mower 1 The distance ⁇ d between them is smaller.
  • the lawn mower 1 When the lawn mower 1 encounters an edge of a wall, a corner, etc., the lawn mower 1 will reach the limit cutting position, and the cutting range of the lawn mower 1 is the front end of the cutting range of the cutting member 3 and the front end of the lawn mower 1 The distance ⁇ d between them is limited, and the smaller the distance ⁇ d between the foremost end of the cutting range of the cutting member 3 and the foremost end of the lawn mower 1, the closer the cutting range of the lawn mower 1 is to the edge, the grass close to the edge The better the cutting effect.
  • the lawn mower 1 includes three cutting members, and the cutting members 3 are staggered on the casing 2 so that the front wheels can be disposed adjacent to the cutting member 3.
  • the cutting members 3 are staggered in front and rear, in the cutting range.
  • the front portion forms a space capable of at least partially receiving the front wheel, that is, the front wheel is at least partially located behind the foremost end of the cutting range of the cutting member 3.
  • the lawn mower includes a first cutting member 301, a second cutting member 302 and a third cutting member 303.
  • the first cutting member 301 and the second cutting member 302 are disposed on both sides of the housing 2, and the third cutting member 303 is disposed between the first cutting member 301 and the second cutting member 302 and disposed on the front side of the first cutting member 301 and the second cutting member 302; the lawn mower 1 includes two front wheels, respectively disposed in the third Both sides of the cutting member 303.
  • the first cutting member 301 and the second cutting member 302 are symmetrically disposed on both sides of the housing 2 with respect to the longitudinal axis XX.
  • the first cutting member 301 is disposed on the right side of the housing 2, and the second cutting is performed.
  • the piece 302 is disposed on the left side of the housing 2.
  • the third cutting member 303 is disposed on the longitudinal axis X-X, and is disposed on the front side of the first cutting member 301 and the second cutting member 302, and the foremost end of the cutting range of the third cutting member 303 is the foremost end of the cutting range of the lawn mower 1.
  • the first front wheel 19 is disposed on the right side of the third cutting member 303, on the front side of the first cutting member 301, and is disposed adjacent to the first cutting member 301 without interfering with the first cutting member 301.
  • the second front wheel 21 is disposed on the left side of the third cutting member 303 and on the front side of the second cutting member 302, and is disposed adjacent to the second cutting member 302 without interfering with the second cutting member 302.
  • the front wheel is a universal wheel, and the installation position of the pivot center A1 of the first front wheel and the pivot center A2 of the second front wheel does not exceed the front end of the cutting range, and the lawn mower 1 is in the forward state. After the front wheel portion is located at the foremost end of the cutting range, the distance ⁇ d between the foremost end of the cutting range and the foremost end of the lawn mower 1 does not exceed 100 mm.
  • the distance ⁇ d between the foremost end of the cutting range and the foremost end of the lawn mower 1 may be It is 60 mm, 45 mm, 35 mm or 26 mm. Specifically, in the present embodiment, the distance ⁇ d between the foremost end of the cutting range and the foremost end of the lawn mower 1 is 26 mm.
  • the front end of the front wheel exceeds the foremost end of the cutting range by a distance of not more than 80 mm. In this embodiment, the front end of the front wheel exceeds the foremost end of the cutting range by a distance of 40 mm, 30 mm, 25 mm or 18 mm.
  • the front end of the front wheel exceeds the foremost end of the cutting range by a distance of 18 mm. Therefore, when the lawn mower 1 encounters an edge such as a wall, a corner, or the like, it is possible to cut the grass close to the corner, so that the lawn mower 1 can be effectively cut to the side.
  • the structure of the lawn mower 1 is substantially the same as that of the sixth embodiment, with the difference that the first cutting member 301 and the second cutting member 302 are disposed in the casing 2.
  • a third cutting member 303 is disposed between the first cutting member 301 and the second cutting member 302 and disposed on the rear side of the first cutting member 301 and the second cutting member 302; the lawn mower 1 includes one front
  • the wheel 23 is disposed between the first cutting member 301 and the second cutting member 302.
  • the first cutting member 301 and the second cutting member 302 are symmetrically disposed on both sides of the housing 2 with respect to the longitudinal axis XX.
  • the first cutting member 301 is disposed on the right side of the housing 2, and the second cutting is performed.
  • the piece 302 is disposed on the left side of the housing 2.
  • the third cutting member 303 is disposed on the longitudinal axis X-X and disposed on the rear side of the first cutting member 301 and the second cutting member 302.
  • the forefront of the cutting range of the first cutting member 301 and the second cutting member 302 together constitutes the forefront of the cutting range of the lawn mower 1.
  • the front wheel 23 is disposed between the first cutting member 301 and the second cutting member 302 and on the front side of the third cutting member 303, and is disposed adjacent to the third cutting member 303 without interfering with the third cutting member 303.
  • the front wheel 23 can be substantially located at the first cutting member 301 and the second cutting member 302. And a receiving space formed by the third cutting member 303. The distance ⁇ d between the foremost end of the cutting range and the foremost end of the lawn mower 1 can be further reduced.
  • the distance ⁇ d between the foremost end of the cutting range and the foremost end of the lawn mower 1 may be 60 mm, 30 mm, 25 mm or 22 mm.
  • the front end of the cutting range and the lawn mower The distance ⁇ d between the foremost ends of 1 is 22 mm.
  • the front end of the front wheel exceeds the foremost end of the cutting range by a distance of 40 mm, 25 mm, 20 mm or 15 mm.
  • the lawn mower 1 is in the forward state, the front wheel The front end exceeds the front end of the cutting range by a distance of 15 mm.
  • the front end of the lawn mower 1 comes into contact with the wall, and the lawn mower 1 reaches the limit cutting position.
  • the first cutting member 301, the second Cutting member 302 It can cut the grass about 22mm away from the wall and has a good cutting effect on the grass near the edge.
  • the third cutting member 303 can cut the grass near the edge.
  • the cutting member 3 has a larger cutting range near the edge, and the cutting effect on the grass near the edge is more. Well, the mower 1 can cut to the side better.
  • a lawn mower 1 in another embodiment of the present invention includes a housing 2, a cutting member 3, and a cutting motor (not shown).
  • the lawn mower 1 is placed on the ground in a direction perpendicular to the ground, in a direction parallel to the direction in which the lawn mower 1 advances, in the longitudinal direction of the lawn mower 1, and in a direction perpendicular to the forward direction of the lawn mower 1
  • the top of the drawing is the right side of the mower 1, and the bottom of the drawing is the left side of the mower 1.
  • a cutting motor (not shown) is mounted to the housing 2 for providing a driving force.
  • the lawn mower 1 includes a battery pack (not shown) that provides electrical energy for the operation of the lawn mower 1.
  • the battery pack can be a lithium iron phosphate battery, a lithium battery, etc., and is electrically connected to the cutting motor to power the cutting motor.
  • the lawn mower 1 includes a plurality of cutting motors, and the cutting motors are coupled to the cutting members 3 in one-to-one correspondence.
  • a plurality of cutting motors By driving a plurality of cutting members 3 by a plurality of cutting motors, the power of a single cutting motor can be reduced, thereby reducing the volume of a single cutting motor.
  • a plurality of cutting motors can be distributedly mounted on the casing 2, so that the gap and space of the casing 2 can be effectively utilized, so that the arrangement of the components in the casing 2 is more compact, thereby reducing the volume of the lawn mower 1.
  • the cutting range of at least two of the cutting members 3 has an overlapping portion in the longitudinal direction of the casing 2 such that the ratio of the total output power of the lawn mower 1 to the volume of the lawn mower 1 is 6 kW/m 3 or more .
  • the total output power of the lawn mower 1 is the sum of the output powers of the individual cutting motors.
  • the lawn mower 1 may be a hand-push lawn mower.
  • the volume of the lawn mower 1 refers to the folded volume of the lawn mower 1 after folding.
  • the lawn mower 1 employs a plurality of discrete cutting members 3 instead of the conventional single cutting members. Compared to conventional lawn mowers, the volume is significantly reduced at the same power. Therefore, the mower 1 can effectively reduce the volume power ratio.
  • the following table 5 is the ratio of power to volume of the lawn mower 1 under different power requirements and different volumes in the present embodiment.
  • the volume is usually 021 m 3 , the power is 1.5 KW, and the mass is 25 kg.
  • the power to volume ratio is 7.14 kW/m 3 and the power to mass ratio is 0.06 kW/kg. It can be seen from Table 1 that when the power of the lawn mower 1 is close to that of the conventional lawn mower, the power to volume ratio is much larger than the power and volume ratio of the conventional lawn mower. Further, in the present embodiment, the ratio of the total output power of the lawn mower 1 to the volume of the lawn mower 1 is 7.5 kW/m 3 or more .
  • the volume of the lawn mower 1 is 0.16 m 3 or less.
  • the total output power of the lawn mower 1 is greater than or equal to 1 kW.
  • the following table 6 is the ratio of power to mass of the lawn mower 1 under different power requirements and different masses in the present embodiment.
  • the ratio of the total output power of the lawn mower 1 to the mass of the lawn mower 1 is greater than or equal to 0.04 kW/kg.
  • the ratio of the total output power of the lawn mower 1 to the mass of the lawn mower 1 is greater than or equal to 0.06 kW/kg.
  • the mass of the lawn mower 1 is 23 kg or less.
  • the lawn mower 1 includes three cutting members 3.
  • the first cutting member 301 and the second cutting member 302 are disposed on both sides of the housing 2, and the third cutting member 303 is disposed between the first cutting member 301 and the second cutting member 302, and is disposed at the first cutting member 301 and The front side of the second cutting member 302.
  • Each cutting member 3 has the same cutting diameter d.
  • the first cutting member 301 and the second cutting member 302 are symmetrically disposed on both sides of the housing 2 with respect to the longitudinal axis X-X. Specifically, the first cutting member 301 is disposed on the right side of the housing 2, and the second cutting member 302 is disposed on the left side of the housing 2.
  • the third cutting member 303 is disposed on the longitudinal axis X-X, and the cutting diameter d is slightly larger than the spacing ⁇ w of the cutting range of the first cutting member 301 and the second cutting member 302.
  • the cutting width D is the distance between the right end of the cutting range of the first cutting member 301 to the left end of the cutting range of the second cutting member 302.
  • each cutting member is slightly larger than 1/3 of the cutting width D.
  • the third cutting member 303 is disposed on the front side of the first cutting member 301 and the second cutting member 302. The third cutting member 303 is closer to the first cutting member 301 and the second cutting member 302 on the longitudinal axis XX, and the cutting members are generally The smaller the dimension l of the cutting range along the longitudinal direction of the casing 2 is.
  • the distance d1 from the center of rotation of the third cutting 303 member to the center of rotation of the first cutting member 301 / the second cutting member 302 must be greater than the cutting radius of the third cutting member 303 and the first cutting member
  • the sum of the cutting radii of the 301/second cutting member 302 is to ensure that the cutting members do not interfere with each other during the working process, and the safety of the lawn mower 1 is ensured.
  • the center of rotation of the third cutting member 303 and the center of rotation of the first cutting member 301 / the second cutting member 302 are along the housing 2
  • the longitudinal distance d2 reaches a minimum value, that is, the total cutting range of each cutting member reaches a minimum along the dimension l of the longitudinal direction of the casing 2.
  • the minimum value is less than 2/3 of the cutting width D.
  • the lawn mower 1 includes two front wheels, which are respectively disposed on both sides of the third cutting member 303.
  • the lawn mower 1 includes a first front wheel 19 and a second front wheel 21 symmetrically disposed on both sides of the third cutting member 303.
  • the first front wheel 19 is located on the right side of the third cutting member 303 and on the front side of the first cutting member 301, and is disposed adjacent to the first cutting member 301 without interfering with the first cutting member 301.
  • the second front wheel 21 is located on the left side of the third cutting member 303 and on the front side of the second cutting member 302, and is disposed adjacent to the second cutting member 302 without interfering with the second cutting member 302.
  • the arrangement of the front wheels enables the housing 2 to further obtain a compact structure.
  • the cutting member 3 having a cutting diameter d of 190 mm is used, and the cutting width D of the lawn mower 1 is 560 mm, and the lateral dimension W of the casing 2 is not less than 560 mm.
  • the housing 2 is The lateral dimension W is set to 580 mm.
  • the range of d1 is 190-394 mm, specifically, the value of d1 is set to 220 mm; the range of d2 is 43-348 mm, specifically, the value of d2 is set to 119 mm; the cutting range is along the longitudinal direction of the casing 2.
  • the dimension l ranges from 235 to 538 mm.
  • the value of l is set to 309 mm; the longitudinal dimension L of the casing 2 ranges from 567 to 870 mm, and specifically, the value of L is 639 mm; therefore, the housing 2
  • the ratio of the longitudinal dimension L to the lateral dimension W of the casing 2 is between 0.98 and 1.5.
  • the L/W value is 1.10.
  • the housing 2 has a compact structure in the longitudinal direction, which reduces the volume of the lawn mower 1, reduces the weight of the lawn mower 1, and effectively reduces the volumetric power ratio and the mass to power ratio.
  • the lawn mower 1 includes three cutting members 3, the first cutting member 301 and the second cutting member 302 are disposed on both sides of the casing 2, and the third cutting member 303 is disposed at the a cutting member 301 Between the second cutting member 302 and the second cutting member 302, and disposed on the rear side of the first cutting member 301 and the second cutting member 302.
  • the first cutting member 301 and the second cutting member 302 are symmetrically disposed on both sides of the housing 2 with respect to the longitudinal axis XX. Specifically, the first cutting member 301 is disposed on the right side of the housing 2, and the second cutting member 302 is disposed on the housing. 2 on the left side.
  • the third cutting member 303 is disposed on the longitudinal axis X-X and disposed on the rear side of the first cutting member 301 and the second cutting member 302.
  • the forefront of the cutting range of the first cutting member 301 and the second cutting member 302 together constitutes the forefront of the cutting range of the lawn mower 1.
  • the lawn mower further includes a front wheel 23 disposed between the first cutting member 301 and the second cutting member 302.
  • the front wheel 23 is disposed between the first cutting member 301 and the second cutting member 302 and on the front side of the third cutting member 303, and is disposed adjacent to the third cutting member 303 without interfering with the third cutting member 303.
  • the front wheel 23 can be substantially located at the first cutting member 301 and the second cutting member 302. And a receiving space formed by the third cutting member 303.
  • the distance ⁇ d between the foremost end of the cutting range and the foremost end of the lawn mower 1 can be further reduced.
  • the distance ⁇ d between the foremost end of the cutting range and the foremost end of the lawn mower 1 may be 60 mm, 30 mm, 25 mm or 22 mm.
  • the distance ⁇ d between the foremost end of the cutting range and the foremost end of the lawn mower 1 is 22 mm.
  • the front end of the front wheel may exceed the foremost end of the cutting range by a distance of 40 mm, 25 mm, 20 mm or 15 mm.
  • the front end of the front wheel exceeds the foremost end of the cutting range by a distance of 15 mm.
  • the front end of the lawn mower 1 comes into contact with the wall, and the lawn mower 1 reaches the limit cutting position.
  • the first cutting member 301, the second The cutting member 302 is capable of cutting grass up to about 22 mm from the wall, and has a good cutting effect on the grass near the edge.
  • the above lawn mower 1 employs a plurality of discrete cutting members 3 in place of the conventional single cutting members. Cutting range of which at least two of the cutting member 3 overlapping the longitudinal direction of the housing portion 2, such that the total output power above a mower with a mower volume ratio is not less than 6kW / m 3. Compared to conventional lawn mowers, the volume is significantly reduced at the same power. Therefore, the lawn mower 1 can effectively reduce the volumetric power ratio, and the volume can be made smaller when the required output power is constant.
  • the structure of the lawn mower 1 is basically the same as that of the sixth embodiment, with the difference that the lawn mower 1 includes a front wheel 25 disposed at the first cutting.
  • the front end of the front wheel 25 does not exceed the foremost end of the cutting range of the cutting member 3.
  • the front wheel 25 is disposed on the rear side of the cutting member 3, and is disposed on the longitudinal axis X-X.
  • the front wheel 25 is located on the rear side of the cutting member 3 such that the distance between the foremost end of the cutting range and the foremost end of the lawn mower 1 is not affected by the front wheel 25, minimizing the front end of the cutting range of the cutting member 3
  • the distance ⁇ d between the foremost end of the cutting range of the cutting member 3 and the foremost end of the lawn mower 1 is 20 mm.
  • the front wheel 25 is disposed on the rear side of the cutting member 3, and is not caused by the distance between the front wheel 25 and the cutting member 3 being too close. The grass pressed by the wheel 25 cannot be cut by the cutting member 3, and the cutting effect is good.
  • the lawn mower 1 can be stably driven and operated by appropriately increasing the weight of the rear portion of the lawn mower 1.
  • the structure of the lawn mower 1 is substantially the same as that of the seventh embodiment, and the difference is that the front wheel non-universal wheel, in the case where the position of the pivot center is constant, the front The distance between the rear side of the wheel and the foremost end of the cutting range of the third cutting member 303 is increased, and the influence of the front wheel grass pressing can be reduced.
  • the lawn mower 1 is powered by an alternating current power source, the cutting motor is a direct current motor, and the alternating current power input is converted into a direct current output to the direct current motor via a conversion circuit.
  • the switch K1 when the switch K1 is closed, the input AC power is rectified to DC by the rectifier bridge.
  • the rectifier bridge is a full-bridge circuit composed of rectifiers D1, D2, D3, and D4, and then output to the filter capacitor C1.
  • DC DC.
  • the lawn mower 1 includes a handle, and the switch K1 is disposed on the handle.
  • a 120V AC power source is input, and the operating voltage of the DC motor is 120V.
  • the DC motor can be a DC motor with a working voltage lower than 120V, such as a 56V DC motor.
  • the conversion circuit further includes a step-down circuit, and the input AC power is first stepped down and then converted into DC power, or the input is input. After the AC power is converted to DC power, it is stepped down and output to the DC motor.
  • the cutting motor is a series motor, and the AC power input is directly output to the series motor via the control of the switch K1.
  • the cutting motor is a DC motor
  • the battery pack is used for the lawn mower 1 Electricity.
  • the lawn mower 1 includes a handle that is mounted to the lawn mower housing or to the handle.
  • the working voltage of the DC motor is 56V
  • two 56V battery packs are used in parallel to supply power to the lawn mower 1.
  • FIG. 10 to FIG. 15 are structural views of a lawn mower according to a ninth to twelfth embodiments of the present invention, wherein the lawn mower includes: a casing; a cutting motor mounted on the casing to provide a driving force; a cutting member driven by the cutting motor to perform a mowing operation in rotation; the lawn mower further comprising: a plurality of cutting cavities corresponding to the cutting member, the cutting cavities being independent of each other; and the cutting At least one grass channel corresponding to the cavity, the at least one grass channel being in communication with the cutting cavity.
  • Fig. 10 to Fig. 12 are configuration diagrams of a lawn mower 1' according to a ninth embodiment of the present invention.
  • the lawn mower 1' includes two cutting members (not shown), which are a first cutting member and a second cutting member, respectively.
  • the first cutting member and the second cutting member are staggered in the traveling direction of the lawn mower.
  • the first cutting member and the second cutting member have the same cutting diameter d, and the cutting diameter d ranges from 150 mm to 220 mm, and preferably, the cutting diameter d is 200 mm.
  • the first cutting member is disposed forward of the second cutting member, and the second cutting member may be disposed forward of the first cutting member.
  • the working plane formed by the first cutting member during the mowing work is the first mowing surface
  • the working plane formed by the second cutting member during the mowing work is the second mowing surface.
  • the first mowing surface is on the same plane as the second mowing surface to ensure that the mower is mowing the grass.
  • the first mowing surface and the second mowing surface are disposed in parallel along the advancing direction of the lawn mower, and the first mowing surface and the second mowing surface at least partially overlap in the advancing direction of the lawn mower 1'.
  • the area where the first mowing surface overlaps the second mowing surface has a size in the lateral direction of 0 to 30 mm, preferably 10 mm.
  • the first cutting member when the first cutting member is disposed forward and the second cutting member is disposed rearward, in the forward direction of the lawn mower 1, when the first first mowing surface passes through a mowing area, The mowing surface will pass at least part of the mowing area, so that the front and rear mowing areas overlap, further ensuring that the cutting range of the cutting part can cover the cutting width of the mower, avoiding secondary cutting, and ensuring no leakage.
  • the chassis of the housing is provided with a cutting cavity 5' in one-to-one correspondence with the two cutting members.
  • the cutting cavity 5' includes a first cutting cavity 501' that houses the first cutting member and a second cutting cavity 502' that houses the second cutting member.
  • the first cutting cavity 501' and the second cutting cavity 502' are two hollow cylindrical structures that intersect in the front-rear direction and are disposed on the same horizontal plane.
  • the cutting cavity 5' includes a cavity wall 11' that covers the cutting member, the cavity wall 11' at least partially surrounding the cutting member along the periphery of the cutting extent of the cutting member.
  • the first cutting cavity 501' includes a first cavity wall 111' covering the first cutting member, the first cavity wall 111' at least partially surrounding the first cutting along the periphery of the cutting range of the cutting member Pieces.
  • the second cutting cavity 502' includes a second cavity wall 112' that covers the second cutting member, and the second cavity wall 112' at least partially surrounds the second cutting member along the periphery of the cutting extent of the second cutting member 502'.
  • the lawn mower 1' further includes a notch 8 formed between the cavity walls 11' of the adjacent cutting cavities 5', and the notches 8 are recessed in a direction away from the grass surface.
  • the cavity wall 11' includes a top wall and a cavity sidewall 15' that is coupled to the top wall and circumferentially surrounds the cutting member.
  • the first cavity wall 111' includes a first cavity sidewall 151' that surrounds the first cutting member
  • the second cavity wall 112' includes a second cavity sidewall 152' that surrounds the second cutting member.
  • the notch 8 is recessed in the cavity side wall 15' of the adjacent cutting cavity.
  • the cross section of the first cavity side wall 151' and the second cavity side wall 152' in the advancing direction of the lawn mower 1' is two circular structures having the same inner diameter.
  • the first cavity wall 111' intersects the second cavity wall 112' to form two intersection regions, one of which is defined as the first edge 81 of the notch 8, and the other of which is defined as the second edge 82 of the notch.
  • the first edge 81 and the second edge 82 are located on both sides of the line connecting the centers of rotation of the first cutting member and the second cutting member.
  • the furthest distance B of the diameter of the first edge 81 or the second edge 82 of the notch 8 from the first cutting cavity 501' or the second cutting cavity 502' ranges from 40 mm to 90 mm, preferably 65 mm.
  • the opening of the notch 8 connecting the first cutting cavity 501' and the second cutting cavity 502' faces the grass surface, and the space of the first cutting cavity 501' and the second cutting cavity 502' can be realized.
  • the space communication solves the small airflow flow space in a single cutting cavity, and the cut grass easily blocks the defects in the cutting cavity 5', effectively improving the mowing and grassing efficiency of the lawn mower.
  • the phenomenon of grass leakage caused by grass pressing on the side wall of the cavity is reduced.
  • the cross-section of the first cavity sidewall 151' and the second cavity sidewall 152' in the direction of advancement of the lawn mower 1' may also be other desirable geometries.
  • the first cavity sidewall 151' and the second cavity sidewall 152' may also be spaced apart or tangentially disposed, and the first cavity sidewall 151' and the second cavity sidewall 152' are connected through the notch 8 to achieve the first A cutting cavity 501' communicates with the airflow within the second cutting cavity 502' and reduces the beneficial effects of the sidewall sidewall pressing.
  • the width of the notch 8 is the lateral dimension of the notch 8 when viewed in the K direction. Considering that if the width of the notch 8 is too large, the mower 1' is in the grass mode, and when the first cutting member and the second cutting member are simultaneously rotated clockwise or simultaneously counterclockwise, on the one hand, the grass is easily broken. Picking up to the gap 8 between the two cutting cavities 5', at this time, the grass will block the notch 8.
  • the width of the notch 8 is too large to be It is very easy for the two cutting cavities to perform independent grass harvesting, and it is very easy for the grass of the first cutting cavity 501' to pass through the notch 8 at least partially to the first Within the two cutting cavity 502', the grass of the second cutting cavity 502' is at least partially smashed into the first cutting cavity 501' through the notch 8, causing the two cutting cavities to be confusing;
  • the width of 8 is too small to solve the problem of small airflow flow space in each cutting cavity and reducing the grass pressing on the side wall of the cavity.
  • the width A of the notch 8 ranges from 90 mm to 140 mm, and preferably, the width A is 115 mm.
  • the design can not only solve the problem that the flow space of the air in each cutting chamber is small and the side wall of the cavity is pressed, nor does it cause the grass to block the gap 8 and the pattern of the adjacent cutting cavity is chaotic.
  • the depth C of the notch 8 is the longitudinal dimension of the notch 8 when viewed in the K direction. The depth C of the notch 8 is set to be less than the depth of the cavity sidewall of the cutting cavity.
  • the depth C of the notch 8 is set to be greater than or equal to 1/2 of the depth of the cutting cavity 5' and smaller than the depth of the cutting cavity 5'.
  • the depth C herein is specifically understood to be a vertical dimension in a direction perpendicular to the advancing direction of the lawn mower 1' and perpendicular to the working plane.
  • the depth C of the notch 8 ranges from 40 mm to 90 mm, preferably 65 mm. In this way, the side wall portion of the cavity is hollowed out to form the notch 8, which ensures the grass cutting effect and the mowing effect while ensuring that the cutting cavities are independent of each other.
  • the cross section of the notch 8 When viewed from the K direction, the cross section of the notch 8 has an isosceles shape to facilitate drafting, and the width A corresponds to the long base of the isosceles trapezoid, and the depth C corresponds to the height of the isosceles trapezoid.
  • the cutting motor is housed in the housing of the lawn mower 1', and the cutting member is driven to perform a mowing operation.
  • the lawn mower 1' includes a plurality of cutting motors (not shown), and the cutting motors are connected in one-to-one correspondence with the cutting members.
  • the lawn mower 1' includes a first cutting motor that drives the first cutting member and a second cutting motor that drives the second cutting member.
  • the first cutting motor includes a first output shaft that mates with the first cutting member
  • the second cutting motor includes a second output shaft that mates with the second cutting member, the first output shaft and the second output shaft axially interacting with each other parallel.
  • the first output shaft extends to the interior of the first cutting cavity 501' and through its center; the second output shaft extends to the interior of the second cutting cavity 502' and through its center.
  • the line connecting the first output shaft and the second output shaft is disposed at an angle to the advancing direction of the lawn mower 1'.
  • the first and second cutting members are respectively coupled to the respective output shafts and rotate therewith.
  • the one-to-one correspondence between the cutting motor and the cutting member facilitates flexible control of the cutting work.
  • Each cutting motor drives a cutting member, reducing the power requirements of the motor, thereby reducing costs.
  • the chassis of the housing is provided with at least one grass passage 7" corresponding to the cutting member, at least one of the grass passages 7" being communicated with the cutting chamber 5'.
  • the number of the grass discharge passages 7" is plural, and is the same as the number of the cutting cavities 5', and the plurality of grass discharge passages 7" are independent of each other, and each of the grass discharge passages 7" and A cutting chamber 5' is provided in communication.
  • the cavity wall 11' is provided with a cavity opening 17' connecting the rows of grass passages, and the grass in the cutting cavity 5' flows into the grass passage 7" through the cavity opening 17' of the cavity wall 11', into the grass box
  • the diameter of the cavity opening 17' of the cavity wall 11' is 1/5-1/2 of the diameter of the cutting member. Specifically, in the embodiment, the diameter of the cavity opening 17' of the cavity wall is 1 of the diameter of the cutting member. / 3.
  • the cavity opening 17' of the cavity wall is provided for the grass in the cutting cavity 5' to be guided to the grass discharge channel 7", the diameter of the cavity opening 17' is 1/3 of the diameter of the cutting piece, which can satisfy the cutting
  • the grass in the cavity 5' is discharged in time without disturbing the swirling airflow in the cutting chamber due to the cavity opening 17' being too large.
  • the size of one end of the weeding channel 7" connecting the cutting cavity 5' is equal to the size of the end of the connecting grass opening 9'.
  • the size of the end of the grassing channel 7" connecting the cutting cavity 5' can be set to It is smaller than the size of one end connected to the grass opening 9'.
  • the grass discharge passage 7" includes a first row of grass passages 701' and a second row of grass passages 702' independent of each other.
  • the rotation directions of the cutting members are uniform, the first row of grass passages 701' and the second row of grasses
  • the channels 702' are each connected to the same half of the corresponding cutting cavity 5', extend in the same direction and are connected to the grass opening 9' at the rear of the housing.
  • the first row of grass channels 701' communicate with the first cutting cavity 501 '
  • the second row of grass channels 702' communicate with the second cutting cavity 502'.
  • the first row of grass channels 701' are aligned with the second row of grass channels 702', both located in the corresponding first cutting cavity 501',
  • the left half of the two cutting cavities 502' are either located on the right half of the corresponding first cutting cavity 501' and the second cutting cavity 502'.
  • the first row of grass channels 701' and the second row of grass channels 702 ' When both are located in the first cutting cavity 501', the left half of the second cutting cavity 502', the first cutting member and the second cutting member both rotate in a counterclockwise direction; when the first row of grass channels 701' and the first The two rows of grass channels 702' are all located on the right side of the corresponding first cutting cavity 501' and the second cutting cavity 502'.
  • the first cutting member and the second cutting member both rotate in a clockwise direction.
  • the grass discharging passages 7"' are parallel to each other and are gathered from the cutting cavity toward the rear of the housing, so that the housing 2' can be reduced.
  • the lateral dimensions make the mower 1' compact.
  • the other end of the grass passage is connected to the grass box at the rear of the shell, and the cut grass is flowed into the straw box through the grass passage to prevent the grass from colliding with each other from colliding with each other, causing the grass to accumulate in the grass drain.
  • FIG 13 is a structural view showing a lawn mower 1" according to a tenth embodiment of the present invention, and the lawn mower provided in the tenth embodiment is basically identical to the main structure of the ninth embodiment.
  • the difference is that the direction of the grass passage is inconsistent.
  • the rotating direction of the cutting member is different. Specifically, the first cutting member rotates in a clockwise direction, the first row of grass passages 701' are connected to the right half of the first cutting cavity 501', and the second cutting member is counterclockwise Rotation, number
  • the two rows of grass channels 702' are connected to the left half of the second cutting cavity 502', and the first row of grass channels and the second row of grass channels are gathered from the cutting cavity to the rear of the casing to reduce the lateral dimension of the casing.
  • the angle of the longitudinal axis of the adjacent grass passage is greater than or equal to 10 degrees and less than or equal to 45 degrees.
  • Figure 14 is a structural view of a lawn mower 1"' according to an eleventh embodiment of the present invention, and the structure of the lawn mower according to the eleventh embodiment is basically the same as that of the ninth embodiment, and the difference is that the lawn mower includes 3 cutting members (not shown) are respectively a first cutting member, a second cutting member and a third cutting member.
  • the first cutting member and the second cutting member are disposed on two sides of the casing, and the third cutting member is disposed at Between the first cutting member and the second cutting member, and disposed on the front side of the first cutting member and the second cutting member.
  • the first cutting member and the second cutting member are symmetrically disposed on the shell with respect to the longitudinal axis XX.
  • the first cutting member is disposed on the right side of the housing
  • the second cutting member is disposed on the left side of the housing
  • the third cutting member is disposed on the longitudinal axis XX of the housing.
  • the cutting width D is the first cutting The distance between the right end of the cutting range and the left end of the cutting range of the second cutting member.
  • the rotation directions of the first cutting member, the second cutting member and the third cutting member are uniform.
  • the chassis of the housing is further provided with a cutting cavity 5" corresponding to the cutting member.
  • the cutting cavity 5" includes a first cutting cavity 501" for receiving the first cutting member, and a second cutting member for receiving the second cutting member. a second cutting cavity 502" and a third cutting cavity 503" accommodating the third cutting member.
  • the first cutting cavity 501", the second cutting cavity 502" and the third cutting cavity 503" are disposed on the same horizontal surface Both have a hollow cylindrical structure.
  • the cutting cavity 5" includes a cavity wall 11" covering the cutting member, the cavity wall 11" at least partially surrounding the cutting member along the periphery of the cutting extent of the cutting member.
  • the first cutting cavity 501" includes a first covering The first cavity wall 111" of the cutting member, the first cavity wall 111" at least partially surrounds the first cutting member along the periphery of the cutting extent of the cutting member.
  • the second cutting cavity 502" includes a second cavity wall 112" that covers the second cutting member, the second cavity wall 112" at least partially surrounding the second cutting member along a periphery of the cutting extent of the second cutting member.
  • the cutting cavity 503" includes a third cavity wall 113" covering the third cutting member, the third cavity wall 113" enclosing the third cutting member at least partially along the periphery of the cutting extent of the cutting member.
  • the cavity wall 11" includes a top wall and a cavity sidewall connected to the top wall and circumferentially surrounding the cutting member.
  • the first cavity wall 111" includes a first cavity sidewall surrounding the first cutting member
  • the second cavity wall 112' includes a second cavity sidewall surrounding the second cutting member
  • the third cavity wall 113" includes a third cavity sidewall surrounding the third cutting member.
  • the lawn mower 1"' further includes at least one grass channel 7"' corresponding to the cutting cavity 5", the at least one grass channel comprising a first row of grass channels 701", a second row of grass channels 702" and Three rows of grass passages 703", each row of grass passages is connected to a cutting chamber 5".
  • the second row of grass channels 702" communicates with the second cutting cavity 502
  • the third row of grass channels 703" communicates with the third cutting cavity 503".
  • the first row of grass channels 701", the first The two rows of grass passages 702" and the third row of grass passages 703" are independently arranged from each other.
  • the cutting members have the same direction of rotation, and the grass passages are connected to the same half of the corresponding cutting cavity and extend in the same direction to the grass opening 9" at the rear of the housing.
  • the three rows of grass passages are located on the left half of the corresponding cutting cavity, and the cutting members disposed in the corresponding cutting cavity are rotated in a counterclockwise direction, and the cut grass is flowed counterclockwise into the corresponding grass passage.
  • three rows of grass passages may also be disposed on the right half of the corresponding cutting cavity, and the cutting members disposed in the corresponding cutting cavity are rotated in a clockwise direction, and the cut grass along the cutting edge Clockwise flow into the corresponding grass channel.
  • the lawn mower further includes a gap 8' connected between the walls of the cavities of adjacent cutting cavities such that the airflow within the adjacent cutting cavities 5" communicates and reduces the wall of the cavities.
  • a first notch 83 formed by recessing between a first cavity sidewall of the first cutting cavity 501" and a third cavity sidewall of the third cutting cavity 502" in a direction away from the grass surface and from the second a second notch 84 is formed between the sidewall of the second cavity of the cutting cavity 502" and the sidewall of the third cavity of the third cutting cavity 503" in a direction away from the surface of the grass.
  • Figure 15 is a structural view showing a lawn mower 1"" according to a twelfth embodiment of the present invention, and the lawn mower provided in the twelfth embodiment is substantially identical to the main structure of the eleventh embodiment and the first embodiment.
  • the difference from the eleventh embodiment is that the grass discharge passage 7"" is gathered from the cutting cavity toward the rear of the casing, and the rotation directions of the cutting members are different. As shown in FIG.
  • first row of grass channels 701"' and the second row of grass channels 702"' are respectively connected to the outer sides of the first cutting cavity 501"' and the second cutting cavity 502"', first The other end of the grass passage 701"' and the second row of grass passages 702"' is closer to the longitudinal axis XX of the casing 2, and is connected to the grass opening 9"' at the rear of the casing 2.
  • first row of grass The channel 701"' is connected to the right half of the first cutting cavity 501"', extending clockwise toward the grass opening 9"', the first cutting member is rotated in a clockwise direction, and the cut grass is clockwise.
  • the direction flows into the first row of grass passages 701"' and flows into the straw box via the first row of grass passages 701"'.
  • the second row of grass passages 702"' is connected to the left half of the second cutting cavity 502"', extends counterclockwise toward the grass opening 9"', and the second cutting member rotates counterclockwise, and the cut is broken.
  • the grass flows counterclockwise into the second row of grass channels 702"' and flows into the grass box via the second row of grass channels 702"'.
  • the third row of grass channels The direction of 703"' may coincide with the direction of the first row of grass passages 701"' or the second row of grass passages 702"', and the direction of rotation of the third cutting member corresponds to the direction of rotation of the first cutting member or the second cutting member.
  • the grass discharge passage 7"" is gathered from the cutting cavity 5"' to the rear of the casing 2, which can reduce the lateral size of the casing and make the structure of the lawn mower 1"" compact.
  • the lawn mower further includes a notch 8" connected between the walls of the cavity of the adjacent cutting cavity, and the notch 8" is recessed in a direction away from the grass surface.
  • the cavity wall includes a top wall and a sidewall of the cavity that is coupled to the top wall and circumferentially surrounds the cutting member.
  • the notch 8" is recessed on the sidewall of the cavity of the adjacent cutting cavity, so that the cutting cavity is independent of each other while the airflow in the adjacent cutting cavity is realized by the gap provided. Circulate and reduce the wall of the cavity to achieve the best grass and mowing effect.
  • the present invention is not limited to the specific embodiment structures, and the structures based on the inventive concept are all within the scope of the present invention.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Harvester Elements (AREA)

Abstract

L'invention concerne une tondeuse à gazon (1) comprenant un corps (2) et un moteur de coupe, le corps ayant une direction longitudinale parallèle à une direction avant de la tondeuse à gazon, et une direction latérale parallèle à un plan de travail et perpendiculaire à la direction avant de la tondeuse à gazon; le moteur de coupe est monté dans le corps et fournit une force d'entraînement; la tondeuse à gazon comprend au moins deux dispositifs de coupe (3), les dispositifs de coupe étant entraînés par le moteur de coupe pour tourner et exécuter le travail de tonte, les portées de coupe desdits deux dispositifs de coupe comportant une partie de chevauchement entre elles dans la direction longitudinale du corps, et un rapport entre une dimension longitudinale et une dimension latérale du boîtier étant inférieur à 1,5. Cette invention réduit le volume et le poids de la tondeuse à gazon, ce qui réduit l'effort d'utilisation.
PCT/CN2016/110421 2015-12-16 2016-12-16 Tondeuse à gazon WO2017101859A1 (fr)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
CN201510944908.2 2015-12-16
CN201510945539 2015-12-16
CN201510945539.9 2015-12-16
CN201510946537.1 2015-12-16
CN201510944908 2015-12-16
CN201510946537 2015-12-16
CN201610037177.8 2016-01-20
CN201610037177 2016-01-20

Publications (1)

Publication Number Publication Date
WO2017101859A1 true WO2017101859A1 (fr) 2017-06-22

Family

ID=59055860

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/110421 WO2017101859A1 (fr) 2015-12-16 2016-12-16 Tondeuse à gazon

Country Status (1)

Country Link
WO (1) WO2017101859A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20308457U1 (de) * 2003-05-30 2003-08-07 Arnold Gunter Akku-Rasenmäher mit großer Schnittbreite
WO2010062199A2 (fr) * 2008-11-26 2010-06-03 Aire Cut Company Limited Tondeuses à gazon
CN202722032U (zh) * 2012-07-23 2013-02-13 宁波万融电器有限公司 一种手推式割草机
CN103733801A (zh) * 2014-01-02 2014-04-23 上海大学 一种组合式智能割草机器人
CN203708827U (zh) * 2014-03-04 2014-07-16 昆山市海光绿化发展有限公司 一种多刀片割草机
CN203814199U (zh) * 2014-04-30 2014-09-10 福州大学 一种割草机器人高度的精细调节装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20308457U1 (de) * 2003-05-30 2003-08-07 Arnold Gunter Akku-Rasenmäher mit großer Schnittbreite
WO2010062199A2 (fr) * 2008-11-26 2010-06-03 Aire Cut Company Limited Tondeuses à gazon
CN202722032U (zh) * 2012-07-23 2013-02-13 宁波万融电器有限公司 一种手推式割草机
CN103733801A (zh) * 2014-01-02 2014-04-23 上海大学 一种组合式智能割草机器人
CN203708827U (zh) * 2014-03-04 2014-07-16 昆山市海光绿化发展有限公司 一种多刀片割草机
CN203814199U (zh) * 2014-04-30 2014-09-10 福州大学 一种割草机器人高度的精细调节装置

Similar Documents

Publication Publication Date Title
EP3400860B1 (fr) Collecteur de poussière portable
CN105648960B (zh) 吹吸装置
CA2828567C (fr) Souffleur a main
EP2747949B1 (fr) Outil electrique portatif
EP3498920A1 (fr) Souffleur de jardin
JP5482291B2 (ja) 芝刈機
CN106149603A (zh) 吹吸装置
CN109772496A (zh) 一种带进料控制功能的砂辊喷风碾米机
CN106941884A (zh) 割草机
WO2017101859A1 (fr) Tondeuse à gazon
WO2020063609A9 (fr) Tondeuse à gazon
CN106879299A (zh) 割草机
CN211729513U (zh) 链锯
CN102423816A (zh) 便携式切割机的锯片以及使用所述锯片的便携式切割机
CN107046923A (zh) 割草机
CN206405122U (zh) 一种pet瓶脱标机
CN210871286U (zh) 一种吸尘器
CN202565694U (zh) 园林工具
CN210961779U (zh) 手持式吸尘器
EP3878271A1 (fr) Machine de soufflage et d'aspiration
CN220238726U (zh) 一种自吸式多功能高效节能双级粉碎机
CN220965617U (zh) 动力头及推草机
CN217389459U (zh) 一种多功能揉草机
CN209011060U (zh) 一种园林清理用吸叶机
CN110052316A (zh) 一种牦牛饲料加工装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16874916

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16874916

Country of ref document: EP

Kind code of ref document: A1