WO2020001637A1 - 手推式电动工具 - Google Patents

手推式电动工具 Download PDF

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Publication number
WO2020001637A1
WO2020001637A1 PCT/CN2019/093796 CN2019093796W WO2020001637A1 WO 2020001637 A1 WO2020001637 A1 WO 2020001637A1 CN 2019093796 W CN2019093796 W CN 2019093796W WO 2020001637 A1 WO2020001637 A1 WO 2020001637A1
Authority
WO
WIPO (PCT)
Prior art keywords
hand
circuit board
battery pack
power tool
tool according
Prior art date
Application number
PCT/CN2019/093796
Other languages
English (en)
French (fr)
Inventor
聂方杰
山冈敏成
许海深
孙青松
杨德中
鲜超
Original Assignee
南京德朔实业有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 南京德朔实业有限公司 filed Critical 南京德朔实业有限公司
Publication of WO2020001637A1 publication Critical patent/WO2020001637A1/zh
Priority to US17/134,670 priority Critical patent/US20210112711A1/en

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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D34/00Mowers; Mowing apparatus of harvesters
    • A01D34/01Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/74Cutting-height adjustment
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D34/00Mowers; Mowing apparatus of harvesters
    • A01D34/01Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/67Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator
    • A01D34/68Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator with motor driven cutters or wheels
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D34/00Mowers; Mowing apparatus of harvesters
    • A01D34/01Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/67Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator
    • A01D34/68Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator with motor driven cutters or wheels
    • A01D34/69Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator with motor driven cutters or wheels with motor driven wheels
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D34/00Mowers; Mowing apparatus of harvesters
    • A01D34/01Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/81Casings; Housings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25FCOMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D34/00Mowers; Mowing apparatus of harvesters
    • A01D34/01Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/67Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator
    • A01D34/68Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator with motor driven cutters or wheels
    • A01D2034/6843Control levers on the handle of the mower
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D2101/00Lawn-mowers
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D34/00Mowers; Mowing apparatus of harvesters
    • A01D34/01Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/76Driving mechanisms for the cutters
    • A01D34/78Driving mechanisms for the cutters electric
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D69/00Driving mechanisms or parts thereof for harvesters or mowers
    • A01D69/02Driving mechanisms or parts thereof for harvesters or mowers electric

Definitions

  • the present disclosure relates to an electric machine, for example, a hand-push type electric tool.
  • Electric machinery generally includes functional elements configured to achieve different functions, and an operating device for the user to control the electric machine. Specifically, the user sends signals to a plurality of functional elements including a motor through the operating device to control the functional elements. exercise.
  • most hand-held power tools such as hand-held lawn mowers or hand-held snowplows, especially DC hand-held power tools, use operating elements such as switches and current control functions, Instead of controlling the functional elements through signals, this makes the structure of the machine not simple enough and the control method is single.
  • the present disclosure provides a smart hand-push type electric tool with a simplified structure and more convenient control.
  • a hand-held power tool includes: a host; an operating device connected to the host for a user to operate the hand-held power tool; the host includes: a working component that realizes the functions of the hand-held power tool; a main motor for driving work The component rotates around the axis of rotation; the operating device includes: an operating component for the user to operate and send out signals; the operating device also includes: a signal collecting device that collects and processes signals from the operating component; a bus, connecting the host and the signal collecting device; the bus Including: a signal line, which is respectively connected to the signal collecting device and the host so that the signal collecting device and the host realize communication connection.
  • FIG. 1 is a schematic diagram of a hand-push type electric tool according to the first embodiment
  • FIG. 2 is a plan view of a hand-push type electric tool according to the first embodiment
  • FIG. 3 is a perspective view of the hand-push type electric tool in FIG. 2;
  • FIG. 4 is a top view of the main body of the hand-held power tool in FIG. 3, with the maintenance compartment in a closed state;
  • FIG. 5 is a perspective view of a part of the structure of the host in FIG. 4 with the maintenance warehouse in an open state;
  • FIG. 6 is a plan view of the maintenance warehouse in FIG. 5;
  • FIG. 7 is a perspective view of the maintenance warehouse in FIG. 5;
  • FIG. 8 is an exploded view of a part of the structure of the host in FIG. 4;
  • FIG. 9 is a perspective view of a partial structure of an operating device of the hand-held power tool in FIG. 2;
  • FIG. 10 is a perspective view of a part of the structure of the operating device of the hand-held power tool in FIG. 2;
  • FIG. 11 is a perspective view of a partial structure of the host in FIG. 4;
  • FIG. 12 is a perspective view of a partial structure of the host in FIG. 4;
  • FIG. 13 is a plan view of a part of the structure of the host in FIG. 4 with the bin cover in a closed state;
  • FIG. 14 is a plan view of a part of the structure of the host in FIG. 4 with the bin cover in an opened state;
  • FIG. 15 is a perspective view of a battery pack compartment of the host in FIG. 14;
  • FIG. 16 is a perspective view of a part of the structure of the host in FIG. 4 with the battery pack in a removed state;
  • 17 is a cross-sectional view of a part of the structure of the host in FIG. 4 with the battery pack installed in the battery pack compartment;
  • FIG. 18 is an exploded view of a chassis and a grass cover of the host in FIG. 4;
  • FIG. 19 is a bottom view of the chassis and the grass cover of the host in FIG. 4;
  • FIG. 20 is a partial cross-sectional view of the chassis and the grass cover of the host in FIG. 4;
  • FIG. 21 is a perspective view of a partial structure of the host in FIG. 4;
  • FIG. 22 is an exploded view of a part of the structure of the host in FIG. 4;
  • FIG. 23 is a perspective view of a partial structure of the hand-push type electric tool in FIG. 2;
  • FIG. 24 is a schematic diagram of a hand-push type electric tool according to the second embodiment.
  • FIG. 25 is a schematic view from another perspective of the hand-held power tool in FIG. 24;
  • FIG. 26 is an exploded view of a part of the structure of the hand-push power tool in FIG. 24; FIG.
  • FIG. 27 is a schematic diagram of a control component of the hand-push type electric tool in FIG. 24;
  • FIG. 28 is a schematic diagram of the internal structure of the switch box of the control component in FIG. 27; FIG.
  • FIG. 29 is a schematic diagram of the internal structure of the handle of the control component in FIG. 27;
  • FIG. 30 is an exploded view of a part of the structure of the control component in FIG. 27;
  • FIG. 31 is a schematic diagram of the control component in FIG. 27 from another perspective
  • FIG. 32 is a schematic diagram of an electromechanical conversion device and a speed governor of the control component in FIG. 27;
  • FIG. 33 is an exploded view of the speed regulating member in FIG. 32; FIG.
  • FIG. 34 is another perspective view of the electromechanical conversion device and the governor in FIG. 32; FIG.
  • 35 is a schematic diagram of an electromechanical conversion device, a speed governor, and a handle;
  • FIG. 36 is a schematic diagram of another electromechanical conversion device, a speed governor, and a handle;
  • Fig. 37 is a schematic diagram of another hand-pushed power tool.
  • the electric machine shown in FIG. 1 may be an electric machine that works indoors or outdoors.
  • the electric machine specifically uses a hand-push type electric tool 100 as an example, and the hand-push type electric tool 100 is specifically a hand-push type
  • the lawn mower can be used by the user to operate the operating device of the hand-held lawn mower to trim the lawn and vegetation.
  • the forward, backward, and up and down directions as shown in FIG. 1 are specified.
  • the hand-push power tool 100 travels on the ground, the side on which the user stands is the rear side, the opposite side is the front side, and the side far from the ground is above. , The side near the ground is below.
  • the electric machine may be other types of hand-push power tools, such as a hand-push snowplow, an all-terrain vehicle, and a golf cart, or may be implemented by outputting a preset form of power.
  • hand-push power tools such as a hand-push snowplow, an all-terrain vehicle, and a golf cart.
  • these tools include the substantive content described below in the present application, they are within the scope of protection of the present application.
  • the hand-driven electric tool 100 includes an operating device 11 and a host 12.
  • the operating device 11 is held by a user to operate the push-type power tool 100.
  • the host 12 includes a host housing 121, a chassis 122, and an electrical device 123.
  • the operating device 11 is rotatably connected to the host housing 121.
  • the electrical device 123 includes a plurality of electrical components.
  • the host also includes a working component 125 that realizes the functions of the hand-held power tool 100.
  • the working component 125 is a cutting blade.
  • the main body housing 121 is bent and formed with a maintenance compartment 1211 that can accommodate a plurality of electrical components.
  • the maintenance compartment 1211 may be formed by bending the main body housing 121 around a plurality of electrical components, or may be a body separate from the main body housing 121. In one embodiment, the maintenance compartment 1211 and the maintenance cover 1212 in the main body 12 are independent.
  • the housing-like components in the host housing 121 can be regarded as a part of the host housing 121.
  • the maintenance compartment 1211 is formed with an opening facing the outside.
  • the maintenance compartment 1211 is provided with a maintenance cover 1212.
  • the maintenance cover 1212 and the opening of the maintenance compartment 1211 form a detachable connection.
  • the openings of the maintenance compartment 1211 are all open, and when the hand-held power tool 100 is placed horizontally on the ground, the opening of the maintenance compartment 1211 faces upward; when the maintenance cover 1212 covers the maintenance compartment 1211, the maintenance compartment 1211 and The maintenance cover 1212 is formed with a receiving cavity.
  • the sealing structure at the opening connection between the maintenance cover 1212 and the maintenance compartment 1211 can make the storage cavity relatively closed to prevent water vapor and dust from entering the accommodation cavity.
  • the maintenance compartment 1211 and the maintenance cover 1212 A stop connection structure is used between them.
  • a structure such as a seal ring or a labyrinth may be used to seal between the maintenance warehouse 1211 and the maintenance cover 1212.
  • the maintenance cover 1212 and the host casing 121 are detachably connected by fasteners such as screws.
  • fasteners such as screws.
  • the screws need to be removed to remove the maintenance cover 1212.
  • the maintenance cover 1212 and the main body housing 121 may also be fixedly connected by other non-threaded fasteners or movable connections by connecting members, for example, detachable connections by buckles, and sliding by slide rails.
  • the groove or the like constitutes a sliding connection, or the hinge or the like constitutes a rotational connection.
  • the maintenance cover 1212 can be rotated or slid relative to the main body housing 121 to form a plurality of maintenance positions where the maintenance compartment 1211 is at least partially open, thereby facilitating the hand-held power tool 100 for maintenance.
  • the maintenance cover 1212 has a generally “concave” shape, including four front, rear, left, and right borders. The distance between the front and back borders is about 221 mm, and the distance between the left and right borders is about 247 mm. A stepped structure is formed.
  • the shape and dimensions of the maintenance compartment 1211 are similar to the maintenance cover 1212. In one embodiment, the shape and dimensions of the maintenance cover 1212 and the maintenance compartment 1211 are not limited to this.
  • the maintenance cover 1212 and the maintenance compartment 1211 are substantially rectangular, and the maintenance cover 1212 is vertical. Plane structure for up and down direction.
  • the hand-held power tool 100 further includes a battery pack 1237 configured to provide working energy.
  • the host housing 121 is also bent around the battery pack 1237 to form a battery pack compartment 1213.
  • the battery pack 1237 is placed on the battery.
  • the maintenance compartment 1212 is disposed between the battery pack compartment body 1213 and the operation device 11.
  • the maintenance compartment 1212 is disposed after the battery pack compartment body 1213, and the operation device 11 is operated. prior to.
  • the battery pack compartment 1213 may also be disposed at other reasonable positions of the host 12.
  • a first circuit board 1231 is housed inside the maintenance compartment 1211, and a driving circuit for driving the main motor is provided.
  • the main motor is a motor configured to drive the working component 125 to rotate;
  • the second circuit board 1232 is provided with a control circuit for controlling the driving circuit;
  • the third circuit board 1233 is electrically connected to the fuse 1234.
  • the driving circuit for driving the main motor and the control circuit configured to control the driving circuit may be disposed on the same circuit board.
  • the first circuit board 1231 is provided with a driving circuit configured to drive the main motor and is configured as A control circuit that controls the driving circuit.
  • functional components other than the fuse 1234 and the motor may be electrically connected to the third circuit board 1233.
  • the first circuit board 1231, the second circuit board 1232, and the third circuit board 1233 are all arranged in the maintenance compartment 1211, and the structure is compactly arranged, which saves the internal space of the host and makes daily maintenance more convenient.
  • the maintenance bin 1211 also contains a fourth circuit board 1235 connected to the capacitor and a fifth circuit board 1236 provided as a driving circuit for driving the self-propelled motor.
  • the self-propelled motor is a motor that drives the walking wheel of the hand-held power tool.
  • An air inlet 1211a and an air outlet 1211b are also formed on the wall of the maintenance warehouse 1211.
  • the airflow enters through the air inlet 1211a, flows through the interior of the maintenance warehouse 1211, and then flows out from the air outlet 1211b, thereby achieving heat dissipation for multiple electrical components in the maintenance warehouse 1211. At the same time, it can also remove dust and other impurities attached to the maintenance warehouse 1211.
  • the airflow forms an air path as shown in FIG. 7 in the maintenance compartment 1211. It can be seen from FIG. 7 that the air path flows through the above-mentioned multiple circuit boards, and at the same time, the airflow through the air outlet 1211b flows through the fuse 1234 and the fuse 1234 connected to the fuse 1234.
  • Third circuit board 1233 Third circuit board 1233.
  • the air path of the maintenance warehouse 1211 is set to mainly dissipate the capacitor, the fourth circuit board 1235 connected to the capacitor, the fuse 1234, and the third circuit board 1233 connected to the fuse 1234, and at the same time make full use of the air path to other Electrical components dissipate heat. Therefore, in one embodiment, the design of the direction of the heat dissipation air path is various, and other forms of air path design capable of dissipating heat from the capacitor and the fuse 1234 are also within the protection scope of the present application.
  • the chassis 122 and the operation device 11 form a rotational connection.
  • the rotation connection can be fixed by a locking structure so that the operation device 11 is fixed relative to the chassis 122.
  • the host casing 121 includes a front end and a rear end, and the rear end is connected to the operation device 11; the front end is located at an end of the host casing 121 and is opposite to the rear end.
  • the upper part of the front end of the main body casing 121 forms a detachable connection with the first lifting portion 1214
  • the upper part of the rear end of the main body casing 121 forms a detachable connection with the second lifting portion 1215
  • the first lifting portion 1214 is away from the operation device 11
  • the second lifting portion 1215 is located between the first lifting portion 1214 and the operation device 11.
  • the position of the second lifting portion 1215 relative to the operation device 11 is not limited to the above-mentioned position.
  • the user can hold the first lifting part 1214 with one hand and lift up to make the front end of the hand-push power tool 100 at least partially off the ground, or hold the second lifting part 1215 with one hand and lift up to make the hand push type
  • the rear end of the power tool 100 is at least partially off the ground. If the user holds the first lifting portion 1214 and the second lifting portion 1215 with two hands and lifts up, the entire hand-push power tool 100 can be lifted off the ground.
  • the first lifting portion 1214 and the second lifting portion 1215 can also be used to perform operations such as moving and turning over the push-type power tool 100.
  • first lifting portion 1214 and the second lifting portion 1215 are grippable structures independent of the host housing 121, and the first lifting portion 1214 is detachably connected to the front end of the host housing 121.
  • the two lifting portions 1215 form a detachable connection with the rear end.
  • the first lifting portion 1214 and the second lifting portion 1215 may also form a rotational connection with the host casing 121 so that the first lifting portion 1214
  • the second lifting portion 1215 is rotated relative to the host casing 121 in an axis parallel to the wheel shaft, so that the user can operate the first lifting portion 1214 and the second lifting portion 1215 more flexibly.
  • the first lifting portion 1214 and the second lifting portion 1215 may also be formed by the host casing 121 itself, and have an integrated structure with the host casing 121.
  • the push-type electric tool 100 has a working plane when working. As shown in FIG. 1, the working assembly 125 rotates around the rotation axis 101 in the working plane, and the first lifting portion 1214 and the second lifting portion 1215 are located on the working plane. Is located on the same side of the main body casing 121 with respect to the ground working assembly 125, and the first raised portion 1214 and the second raised portion 1215 are located on the upper side of the main casing 121.
  • the orthographic projections of the first raised portion 1214 and the second raised portion 1215 in the working plane are both within the orthographic projection of the host housing 121 in the working plane. This makes the host machine
  • the housing 121 always contacts any wall surface perpendicular to the working plane before the first lifting portion 1214 and the second lifting portion 1215.
  • the horizontal distance between the first lifting portion 1214 and the vertical wall surface is greater than 0, which makes the main body casing 121 precede the first A lifting portion 1214 contacts an obstacle in front.
  • the horizontal distance between the first lifting portion 1214 and the vertical wall surface is greater than or equal to 99 mm and less than or equal to 131 mm. In this embodiment, the horizontal distance between the first raised portion 1214 and the vertical wall surface is about 147 mm.
  • the horizontal distance between the first lifting portion 1214 and the second lifting portion 1215 is greater than or equal to 564 mm and less than or equal to 628 mm, and the lower limit of the horizontal distance requires that between the first lifting portion 1214 and the second lifting portion 1215. Can not be too close to each other, so that when the user lifts the first lifting portion 1214 and the second lifting portion 1215, the hand-driven power tool 100 can be kept relatively stable without large distortion, and the upper limit of the horizontal distance requires the first lifting The lifting portion 1214 and the second lifting portion 1215 should not be too far apart.
  • the orthographic projection in the working plane should be included in the main housing 121 within the orthographic projection in the working plane to prevent the first lifting portion 1214 and the The second lifting portion 1215 is damaged by hitting a wall, and at the same time, the first lifting portion 1214 and the second lifting portion 1215 are prevented from expanding the cutting dead angle when the hand-push power tool 100 is cut.
  • the horizontal distance between the first raised portion 1214 and the second raised portion 1215 is about 608 mm.
  • the horizontal distance between the foremost end of the first lifting portion 1214 and the rotation axis 101 is greater than or equal to 0 and less than or equal to 350 mm, which reduces the number of pairs of the first lifting portion 1214 located at the front end of the main housing 121.
  • the limitation of the cutting range of the working component 125 inhibits the blocking of the working component 125 to a certain extent, resulting in a cutting dead angle when the hand-driven power tool 100 cuts.
  • the horizontal distance between the foremost end of the first lifting portion 1214 and the rotation axis 101 is about 330 mm.
  • the hand-held power tool 100 further includes a lighting device 124 including a lighting component 1241 configured to illuminate, a lighting switch 1242 configured to turn on or off the lighting component 1241, and configured to indicate A lighting instruction component 1243 for whether the lighting component 1241 emits light and a lighting circuit board 1244 provided to control the lighting component 1241 and the lighting instruction component 1243.
  • the lighting assembly 1241 is installed on the left and right sides of the main body housing 121 of the battery pack compartment 1213 in the forward direction of the hand-push power tool 100. When the lighting switch 1242 is triggered, the lighting assembly 1241 faces the hand The front side of the push-type electric power tool 100 emits light.
  • the lighting indicating component 1243 is located between the lighting component 1241 and the operating device 11, and also between the battery pack body 1213 and the operating device 11.
  • the lighting indicating component 1243 may be disposed at the user's position on the rear side of the hand-held power tool 100. An arbitrary reasonable position in a visible area that can be observed when operating the operating device 11 is used.
  • a lamp holder 1242a is further formed on the lighting switch 1242, and the lighting indicating component 1243 is installed on the lamp holder 1242a and forms a fixed connection with the lamp holder 1242a.
  • the lighting switch 1242 is installed on the maintenance cover 1212.
  • the maintenance cover 1212 is formed with a through hole 1212a for partially exposing the lighting switch 1242 and the lighting indicating component 1243.
  • the lighting component 1243 is distinguished by the different colors displayed by the lighting indicating component 1243. Glowing state. An interference fit is formed between the lighting switch 1242 and the through hole 1212a.
  • the lighting indicating component 1243 may also be connected to the maintenance cover 1212 in other connection forms.
  • a lighting circuit board 1244 configured to control the lighting module 1241 and the lighting indicating module 1243 is located inside the maintenance compartment 1211, and the lighting module 1241 and the lighting indicating module 1243 are electrically connected to the lighting circuit board 1244.
  • the lighting switch 1242 also includes an elastic portion 1242b. An interference fit is formed between the elastic portion 1242b and the through hole 1212a. When the lighting switch 1242 is pressed down, the elastic portion 1242b elastically deforms to cause the lighting switch 1242 to move downward and trigger the lighting circuit.
  • the related electrical components on the board 1244 cause the lighting component 1241 to be lit.
  • the lighting device 124 in this embodiment can also be applied to other tools, such as a snowplow, an all-terrain vehicle, a golf cart, or a forklift, etc.
  • the composition and location of the lighting device can be derived from the lighting in this embodiment.
  • the device 124 is not described in detail here.
  • the operating device 11 of the push-type power tool 100 is connected to the host 12 for a user to operate the push-type power tool 100.
  • the operating device 11 includes a handle 111 for a user to push the push-type power tool 100 to walk along the ground.
  • the handle 111 includes a holding portion 1111 for the user to hold.
  • the holding portion 1111 includes a first holding portion 1111a and a second holding portion. 1111b, the first holding portion 1111a extends in the direction of the first straight line 102.
  • the first holding portion 1111a and the second holding portion 1111b are an integrated structure.
  • the holding portion 1111 It may also be formed by connecting the independent first holding portion 1111a and the second holding portion 1111b.
  • the handle 111 further includes a connecting rod 1112 that connects the holding portion 1111 and the host 12. In this embodiment, the connecting rod 1112 extends along a second line 103 perpendicular to the first line 102.
  • the operating device 11 further includes a first switch 112 and a second switch 113 that control the self-propelled motor to start and stop the self-propelled self-propelled motor by driving the walking wheels of the hand-driven electric tool 100.
  • Both the first switch 112 and the second switch 113 are mounted to the handle 111. More specifically, the first switch 112 and the second switch 113 are both mounted to the holding portion 1111.
  • the operating device 11 further includes a fifth circuit board 1236 provided with a driving circuit for driving the self-propelled motor.
  • Both the first switch 112 and the second switch 113 are electrically connected to the fifth circuit board 1236, and only when the first switch 112 and the second switch
  • the driving circuit on the fifth circuit board 1236 can control the self-propelled motor to start, and the hand-driven power tool 100 can realize self-propelled movement along the ground. This makes the first switch 112 or the second switch in non-working conditions. When the switch 113 is accidentally triggered, the self-propelled motor will not start, ensuring the safety of operation.
  • the operating device 11 may further include a first switch 112 for controlling the start and stop of the self-propelled motor.
  • the first switch 112 is electrically connected to a fifth circuit board 1236 provided with a driving circuit for driving the self-propelled motor.
  • the first switch 112 and the second switch 113 are mounted on the holding portion 1111.
  • the holding portion 1111 is formed with a groove or hole in which the first switch 112 and the second switch 113 are mounted.
  • the two switches 113 are partially embedded in the grooves or holes to form a fixed connection with the holding portion 1111.
  • the first switch 112 and the second switch 113 can also be connected to the surface of the holding portion 1111.
  • the first switch 112 and the second switch 113 are disposed at the connection point between the first gripping portion 1111a and the second gripping portion 1111b, that is, the most convenient gripping position when the user operates.
  • the first switch The switch 112 and the second switch 113 may also be disposed at other positions of the operating device 11.
  • the structure of the handle 111 is not limited to the structure in this embodiment, and the specific positions of the first switch 112 and the second switch 113 may also be determined according to the specifics of the handle 111. Structure.
  • the setting of the first switch 112 and the second switch 113 may not be limited to the operation device 11, and one of the switches may be set on the host 12, and the self-propelled motor starts when both switches are triggered. When both switches are released, the self-propelled motor stops working.
  • the operating device 11 further includes a trigger 114 and a power switch 115.
  • the trigger 114 is rotatably connected to the operating device 11 and can rotate relative to the handle 111 with the third straight line 104 as an axis.
  • Both the trigger 114 and the power switch 115 are electrically connected to the second circuit board 1232, and the second circuit board 1232 is provided with a control circuit that controls the driving circuit.
  • the control circuit controls the working component 125 to start rotating, and the power switch 115 is triggered and the 114 is held in the starting position to keep the working component 125 rotating.
  • the holding portion 1111 is formed with an inwardly recessed groove 1111c.
  • the trigger 114 is pulled to the starting position, the trigger 114 is received in the groove 1111c, and the trigger 114 is defined relative to the holding portion 1111. The position makes the user more convenient and labor-saving when holding the trigger 114 and the holding portion 1111.
  • the push-type electric tool 100 includes a traveling component 126 that enables the self-propelled self-propelled electric tool 100 to travel.
  • the traveling component 126 includes a driving wheel with a fourth straight line 105 as an axis.
  • the first driving shaft 1261 is rotated.
  • the hand-push power tool 100 further includes a height adjustment component 127 that adjusts the chassis 122 so that the chassis 122 can move up and down.
  • the height adjustment component 127 includes an adjustment handle 1271 that receives adjustment power and drives the chassis 122 to move.
  • the first driving shaft 1261, the second driving shaft 1272, and the fourth axis 105 are parallel to each other, and the second driving shaft 1272 is eccentrically disposed with respect to the fourth axis 105 and the first driving shaft 1261.
  • the height of the chassis 122 from the ground needs to be adjusted according to the actual situation.
  • the user applies a driving force by operating the adjustment handle 1271, which drives the connecting mechanism 1273 to rotate, thereby driving the second drive.
  • the shaft 1272 and the chassis 122 rotate to adjust the height of the chassis 122.
  • the host 12 further includes a grass blocking plate 128, which is generally located on the rear side of the hand-held power tool 100 when the user operates the hand-held power tool 100.
  • the grass block 128 is configured to prevent grass cuttings from pushing the hand-held power tool 100. 100 backside splashes.
  • the grass shield 128 can be mounted to the chassis 122 or the main body housing 121, but this makes the grass fence 128 move up and down with the chassis 122 or the main housing 121 when the height of the chassis 122 is adjusted.
  • the contact objects such as the ground wear out, which affects the performance and service life of the grass shield 128.
  • the height-adjusting assembly 127 further includes a connecting member 1274 that is in a rotational connection with the traveling wheel at the center A of the traveling wheel.
  • the connecting member 1274 is rotationally connected to the first driving shaft 1261 and a fixed connection to the second driving shaft 1272.
  • the connecting member 1274 and the second driving shaft 1272 are an integrated structure formed by welding, and the grass blocking plate 128 is mounted to the second driving shaft 1272.
  • the first driving shaft 1261 supports the chassis 122, and the chassis 122 is rotatably connected to the first driving shaft 1261.
  • the distance from the first driving shaft 1261 to the center of the traveling wheel A, the distance from the second driving shaft 1272 to the center of the traveling wheel A, and the distance from the first driving shaft 1261 to the center of the traveling wheel A, and the second driving shaft 1272 can be properly set.
  • the ratio to the center A of the walking wheel causes the second drive shaft 1272 to drive the connecting member 1274 to rotate about the center A of the walking wheel when the height adjustment component 127 adjusts the height of the chassis 122.
  • the connecting member 1274 drives the base 122 to rotate about the center A of the walking wheel.
  • the displacement of the fender 128 in the vertical direction is less than half of the displacement of the chassis 122 in the vertical direction.
  • the ratio of the distance between the first drive shaft 1261 to the center of the traveling wheel and the second drive shaft 1272 to the center of the traveling wheel A is about 1.52, so that when the height adjustment component 127 adjusts the height of the chassis 122, the grass shield The vertical displacement generated by 1272 is much smaller than the vertical displacement generated by the chassis 122.
  • the grass blocking plate 128 may also be connected to the first driving shaft 1261 or other positions.
  • the height adjustment component 127 adjusts the height of the chassis 122, the position of the center A of the walking wheel is unchanged.
  • the connection position of the plate 128 is closer to the position of the walking wheel center A, that is, the position where the grass blocking plate 128 is connected to the host 12 and the position of the walking wheel center A can be infinitely close to or even coincide, so that the grass blocking plate 128 is in the up-down direction.
  • the upper position remains almost constant.
  • the host 12 further includes a battery pack configured to provide an energy source for the self-propelled motor and the main motor.
  • the battery pack is a battery pack 1237, and the host casing
  • the body 121 includes a battery pack compartment body 1213.
  • the battery pack compartment body 1213 is an independent case connected to the host case 121.
  • the battery pack compartment body 1213 may also be integrally formed by the host case 121.
  • the host computer 12 further includes a battery pack compartment cover 1216.
  • the battery pack compartment cover 1216 and the battery pack compartment body 1213 form a rotational connection, and can be rotated with a fifth straight line 106 as an axis.
  • the battery pack compartment 1213 is opened to form a window 1217 that communicates the inside and the outside.
  • the battery pack compartment cover 1216 has an open state and a closed state with respect to the window 1217. When the battery pack compartment cover 1216 is open relative to the window 1217, the window 1217 communicates the inside and the outside of the battery pack compartment body 1213.
  • the battery pack can be taken out of the battery pack compartment body 1213, that is, the battery pack 1237 and the battery pack compartment.
  • the body 1213 constitutes a detachable connection; when the battery pack compartment cover 1216 is closed with respect to the window 1217, the battery pack compartment body 1213 and the battery pack compartment cover 1216 form a substantially closed accommodation space, that is, the battery pack compartment body 1213, and the battery pack 1237 Accommodated inside the battery pack compartment 1213.
  • the maintenance cover 1212 is further formed with a locking groove 1212 b.
  • the battery pack compartment cover 1216 is formed with a hook 1216 a.
  • the hook 1216a is locked into the slot 1212b and the slot 1212b constitutes a limiting structure so that the battery pack compartment cover 1216 does not rotate relative to the battery pack compartment body 1213.
  • the positions of the hook 1216a and the slot 1212b are flexible.
  • the maintenance cover 1212 may be formed with a hook 1216a, the battery pack compartment cover 1216 may be formed with a latch slot 1212b, or formed on the battery pack compartment cover 1216.
  • the hook 1216a defines a slot 1212b in the battery pack case 1213.
  • the limiting structure provided to limit the battery pack compartment cover 1216 so that the battery pack compartment cover 1216 remains closed relative to the battery pack compartment body 1213 is not limited to the mating structure of the hook 1216 and the card slot 1212b, and may be other removable Limit structure, such as a magnet or a lock.
  • a battery pack compartment cover 1216 is formed on the outer surface of the battery pack compartment body 1213 near the battery pack compartment body 1213 and connected to the battery pack compartment cover 1216.
  • the battery pack compartment cover 1216 is also formed to face the battery pack.
  • the holder body 1213 holds the support portion 1213a in an opened state. The support portion 1213 actually limits the rotation angle of the battery pack compartment cover 1216 relative to the battery pack compartment body 1213, so that the battery pack compartment cover 1216 cannot continue to rotate after a preset angle.
  • the battery pack compartment cover 1216 The rotatable angle range with respect to the battery pack compartment body 1213 is about 0 to 65 °, that is, when the battery pack compartment cover 1216 is supported by the support portion 1213 and remains open, the battery pack compartment cover 1216 and the battery pack compartment The angle formed between the bodies 1213 is about 65 °.
  • the battery pack compartment cover 1216 can be rotated relative to the battery pack compartment body 1213 by an angle greater than 0 ° and less than 180 °.
  • the angle of the battery pack compartment body 1213 relative to the chassis 122 and the structure of the main body housing 121 can be determined. Reasonably set other range values between 0 and 180 ° as the range of angle that the battery pack compartment cover 1216 can rotate relative to the battery pack compartment body 1213.
  • the host 12 when the battery pack compartment cover 1216 is in an open state relative to the battery pack compartment body 1213, the host 12 can be lifted up from the handle 111 by pressing down the handle 111, so that the center of gravity of the battery pack compartment cover 1216 The position is shifted, the battery pack compartment cover 1216 rotates under the action of gravity, resetting from the open state to the closed state, and at the same time, the hook 1216a is locked into the slot 1212b under the action of gravity, thereby eliminating the need to manually operate the battery pack compartment cover. 1216 causes the battery pack compartment cover 1216 to be turned from an open state to a closed state and presses the battery pack compartment cover 1216 downward so that the hook 1216a is caught in the slot 1212b.
  • the first lifting portion 1214 is disposed at the front end of the battery pack compartment body 1213 relative to the host housing 121, when the battery pack compartment cover 1216 is in an open state relative to the battery pack compartment body 1213, it is lifted upwards. Lifting the first lifting portion 1214 can also make the host 12 lift up from the end away from the handle 111, so that the battery pack compartment cover 1216 is reset from the open state to the closed state under the action of gravity, and at the same time, the hook 1216a is under the action of gravity Snaps into the slot 1212b.
  • the battery pack body 1213 of the main body casing 121 includes a main body portion, and a groove is formed around the main body portion.
  • the groove is recessed toward the inside of the main body casing 121, and the groove may be connected to the main body casing.
  • the 121 integral molding may also be an independent structure connected to the host casing 121, and the battery pack compartment body 1213 is formed with an insertion opening for the battery pack 1237 to be inserted. In this embodiment, the insertion opening is the window 1217.
  • the battery pack compartment body 1213 and the battery pack compartment cover 1216 are bent together in a direction surrounding the battery pack 1237 to form a battery pack compartment accommodating the battery pack 1237.
  • a coupling portion 1213 b that guides the battery pack 1237 to the host casing 121 along a single insertion direction is also formed inside the battery pack compartment.
  • the coupling portion 1213 b may be integrally formed with the host casing 121 or may be independent.
  • the structure is connected to the battery pack compartment body 1213 or the battery pack compartment cover 1216.
  • the joint portion 1213b is a slide rail integrally formed with the battery pack compartment body 1213. When the battery pack 1237 is inserted into the battery pack compartment body 1213, it slides along the slide. The rail slides from the top to the bottom of the battery pack compartment 1213.
  • the joint portion 1213b can also be any other structure with a displacement guide function.
  • the host 12 may further include a fixing portion configured to fix the battery pack 1237 at a preset position in the battery pack compartment. After the battery pack 1237 is inserted into the bottom of the battery pack compartment body 1213, the battery pack 1237 is operated by operating the battery pack 1237 or the fixing portion. A detachable connection is formed with the fixing part, and the fixing part may be integrally formed or mounted to the battery pack 1237 or the buckle or magnetic component of the host casing 121, which is not limited herein.
  • the battery pack 1237 is inserted into the battery pack housing 1213 from the insertion port along the slide rail in the direction shown in FIG. 16.
  • the battery pack compartment body 1213 is inclined at a predetermined angle with respect to the horizontal plane, and specifically is inclined backward from the vertical direction. Therefore, the battery pack 1237 is also inserted into the battery pack compartment body 1213 at a predetermined angle with respect to the horizontal plane. .
  • the angle between the insertion direction of the battery pack 1237 and the horizontal plane is greater than or equal to 30 ° and less than or equal to 80 °.
  • the angle between the insertion direction of the battery pack 1237 and the horizontal plane is 54 °, that is, the battery
  • the inclination angle of the bale body 1213 and the slide rail with respect to the horizontal plane is also 54 °.
  • the included angle may also be other values in the above range.
  • the battery pack 1237 is also formed with a power indicator lamp 1237a configured to display a power amount.
  • the power indicator lamp 1237a emits light in the insertion direction.
  • the power display lamp 1237a can be set at any position on the battery pack 1237. For convenience of visualization, it is mostly set on the top surface of the battery pack 1237. In this embodiment, the power display lamp 1237a is set at the center of the top surface of the battery pack 1237.
  • the battery pack compartment cover 1216 is also formed with a visible portion 1216b for a user to observe the display state of the electric quantity display lamp 1237a located in the battery pack compartment.
  • the visible portion 1216b is a transparent portion made of an at least partially transparent material.
  • the visible portion 1216b is made of light-transparent polished plastic. In one embodiment, the visible portion 1216b may also be made of other light-transmitting materials, such as glass.
  • the visible portion 1216b is mounted to the battery pack compartment cover 1216, and can be integrally formed with the battery pack compartment cover 1216. At this time, the entire battery pack compartment cover 1216 is a transparent portion or a separate structure, and is fixedly connected to the battery pack compartment cover 1216.
  • the visible portion 1216b is a plastic case with a coverage area smaller than that of the battery pack compartment cover 1216 and a material different from that of the battery pack compartment cover 1216.
  • the visible part 1216b allows the user to observe the power indicator 1237a from the outside of the battery compartment, and at the same time, the visible range is restricted due to the limitation of its own area.
  • the battery pack 1237 is generally installed near the center position of the main body housing 121 in the left-right direction, that is, the battery pack 1237, the battery pack compartment body 1213, and the power indicator 1237a are generally related to the middle of the operating device 11.
  • the facets are symmetrical, and the trigger 114 is symmetrical about the midplane.
  • the electric quantity display lamp 1237a is restricted by the visible portion 1216b, and the electric quantity display lamp 1237a is formed on the mid-plane, with the first boundary 1216c and the first boundary 1216c.
  • the two borders 1216d are light emitting areas of the sides, and the included angle formed by the first border 1216c and the second border 1216d is 90 ° or more and 160 ° or less.
  • the center point of the power indicator lamp 1237a is regarded as the power indicator lamp 1237a, and the visible portion 1216b includes a rear edge further forward and a front edge in the front-to-rear direction.
  • the first boundary 1216c is the center point of the power indicator light 1237a.
  • the second boundary 1216d is the ray connecting the center point of the power indicator 1237a and the intersection of the front side of the visible portion 1216b and the mid-plane.
  • the included angle formed by the first boundary 1216c and the second boundary 1216d is 129 °. Even if the maximum visible range of the power indicator lamp 1237a is 129 ° at this time, of course, the above angles can also be Other values of the range.
  • the angle between the first boundary 1216c and the horizontal plane is greater than or equal to 5 ° and less than or equal to 15 °, that is, the inclination angle of the visible area of the power display lamp 1237a with respect to the horizontal plane is greater than or equal to 5 ° and less than or equal to 15 °.
  • the angle is 8 °.
  • the chassis 122 (see FIG. 1) further includes a surrounding wall surface 1222 provided to form a cutting space 1221 to accommodate the working component 125 (see FIG. 1).
  • the chassis 122 is also formed to be configured to discharge weeds.
  • the grass discharge channel 1223 includes a connection end 1223a communicating with the cutting space 1221 and a grass discharge opening 1223b opposite to the connection end 1223a.
  • the hand-held power tool 100 further includes a weeding device 1223b connected to the weeding opening 1223b, a weeding device arranged to collect cut weeds, and a weed cover 1224 provided to close the weeding passage 1223 to prevent weeds from being discharged from the weeding opening 1223b.
  • the hand-held power tool 100 has a grass-gathering mode and a grass-grass mode; when the hand-held power tool 100 is in the grass-gather mode, the grass discharge opening 1223b is opened or connected with a grass-gathering device; In the mode, the grass cover 1224 is connected to the grass discharge channel 1223, and the grass discharge channel 1223 is closed to prevent weeds from being discharged from the grass discharge port 1223b.
  • the grass crushing cover 1224 further includes a filling end 1224a protruding into the grass discharge channel 1223 so that the grass discharge channel 1223 is partially filled.
  • the filling end 1224a includes a filling surface configured to close the connection end 1223a. When the grass cover 1224 closes the grass discharge channel 1223, the filling surface and the surrounding wall surface 1222 extend in a continuous curved surface.
  • a step structure 1225 is formed at the connection between the grass discharge channel 1223 and the surrounding wall surface 1222.
  • the grass cover 1224 closes the grass discharge channel 1223, the filling end 1224a and the step structure
  • a gap of approximately 12 mm is formed between 1225.
  • the grass cover 1224 When the grass cover 1224 closes the grass discharge channel 1223, the grass cover 1224 blocks the originally recessed structure of the chassis 122, and the filling surface and the surrounding wall surface 1222 form a revolving body structure 1226 centered on the rotation axis 101 (see FIG. 1).
  • the swivel structure 1226 is substantially symmetrical about the rotation axis 101. Among them, the slewing body structure 1226 ignores the gap formed between the internal filling end 1224a and the stepped structure 1225, the stepped structure 1225 formed at the connection between the grass discharge channel 1223 and the surrounding wall surface 1222, and the thickness of the filled end 1224a itself. It is substantially symmetrical about the rotation axis 101.
  • an outer rotor of a self-propelled motor provided to drive a traveling wheel is further provided with an anti-weeding cover 1218 provided to prevent weeds from being entangled.
  • the anti-wrapped grass cover 1218 is a shell structure with multiple air vents.
  • the anti-grass cover 1218 is composed of a first cover portion 1218a near the output end of the rotor shaft of the self-propelled motor and a second cover portion 1218b near the input end of the rotor shaft.
  • the first cover portion 1218a and the second cover portion 1218b pass through the latch 1218c. Forms a detachable connection.
  • the operating device 11 includes an operating component.
  • the operating component includes a trigger 114 that controls the rotation of the main motor and a self-propelled switch that controls the start and stop of the self-propelled motor.
  • the self-propelled switch includes the first The switch 112 and the second switch 113, and a speed adjusting member for adjusting the rotation speed of the self-propelled motor.
  • the adjusting member is specifically a speed adjusting knob 116.
  • the speed regulating knob 116, the first switch 112, the second switch 113, and the speed regulating knob 116 are all mounted to the holding portion 1111 of the handle 111. Of course, only one switch can be used to control the start and stop of the self-propelled motor.
  • the operating device 11 further includes a signal collecting device.
  • the signal collecting device is a signal circuit board 1238, and the signal circuit board 1238 is installed inside the accommodation space formed around the operating device 11, specifically, it is installed around the handle 111. The interior of the accommodation space.
  • the trigger 114, the first switch 112, the second switch 113, and the speed control knob 116 are all connected to the signal circuit board 1238. When the trigger 114, the first switch 112, the second switch 113, and the speed control knob 116 are operated by the user, all can be generated The electric signal is transmitted to the signal circuit board 1238.
  • the signal collection device may also be multiple circuit boards or other forms of electrical devices, which are not limited herein. In this embodiment, transmitting the electrical signals from the operating components to the same signal circuit board 1238 can be simplified.
  • the internal circuit structure of the push-type power tool 100 The internal circuit structure of the push-type power tool 100.
  • the operating components connected to the signal circuit board 1238 are not limited to the trigger 114, the first switch 112, the second switch 113, and the speed adjusting knob 116.
  • the signal circuit board 1238 can also be connected with more operating elements with different functions.
  • the signal collecting device may include a plurality of signal circuit boards that collect and process different signals, respectively.
  • the signal collecting device includes a first signal circuit board connected to the trigger 114, and A second signal circuit board connected to the switch 112 and the second switch 113 and a third signal circuit board connected to the speed regulating knob 116.
  • the second signal circuit board and the third signal circuit board can be combined into one circuit board.
  • the hand-held power tool 100 has a Bluetooth control function.
  • the operation device 11 further includes a Bluetooth signal circuit board that receives and processes Bluetooth signals.
  • the Bluetooth signal circuit board is also accommodated in the accommodation space formed by the operation device 11.
  • the operating device 11 further includes a bus connecting the host 12 and the signal collecting device, and the bus is composed of one or more wires.
  • the bus includes a signal line 1239, and the signal line 1239 is connected to the signal circuit board 1238, the Bluetooth signal circuit board, and the host 12 and transmits the signal from the signal circuit board 1238 or the Bluetooth signal circuit board to the host 12, wherein, the transmission
  • the above-mentioned multiple circuit boards to the host computer 12 can implement control of more than 100 functions of the hand-push type electric power tool.
  • the signal line is a signal line using a 485 communication protocol.
  • the signal line 1239 includes a core for signal transmission and a protective tube 1239a surrounding the core.
  • the protective tube 1239a is a corrugated tube
  • the cross section of the protective tube 1239a is circular
  • the protective tube 1239a The diameter of the cross-section of 5 mm or more and 15 mm or less, in this embodiment, the diameter of the cross-section of the protection tube 1239a is 10 mm.
  • the host 12 further includes a self-propelled motor configured to drive the hand-push electric tool 100 to achieve self-propelled operation, and a main motor configured to drive the work assembly 125 to rotate with a rotation axis as an axis.
  • the host 12 further includes a first circuit board 1231 provided with a control circuit that controls the rotation of the main motor, and a fifth circuit board 1236 provided with a drive circuit that drives the rotation of the self-propelled motor.
  • the first circuit board 1231 is a control circuit board
  • the fifth circuit board is a driving circuit board.
  • the signal line 1239 is connected to the first circuit board 1231 and the fifth circuit board 1236, and transmits the control signals sent by the operation component to the first circuit board 1231 and the fifth circuit board 1236, so as to control the start and stop of the self-propelled motor and the main motor. Further, the self-propelled power tool 100 and the cutting of the work assembly 125 are controlled.
  • the signal line 1239 is not limited to being connected to the first circuit board 1231 and the fifth circuit board 1236, and may also be connected to other circuit boards or circuit components.
  • the host 12 further includes a function circuit board, which is a function circuit board. Functional components such as the lighting device 124 (see FIG. 4) and the battery pack 1237 (see FIG.
  • All the circuit boards connected to the signal line 1239 can send signals to the signal line 1239 or receive signals sent by other circuit boards to the signal line 1239, and then selectively process the received signals.
  • the host 12 includes functional components such as a main motor, a walking motor, a battery pack 1237, and a lighting device 124.
  • the host 12 further includes a Bluetooth device
  • the signal collecting device further includes a fourth signal circuit board, that is, a Bluetooth signal circuit board.
  • the Bluetooth signal circuit board is installed in the accommodation space formed by the handle 111. .
  • the signal sent by the Bluetooth device is transmitted to the signal receiving device, and after receiving and processing by the Bluetooth signal circuit board, it is transmitted to the host 12 through the signal line 1239, so as to control the hand-held power tool 100.
  • the Bluetooth signal circuit board can collect The signals from the host 12 and the signal receiving device set or update multiple parameters of the host 12 and transmit them to the above-mentioned multiple circuit boards connected to the functional components to control the multiple functional components of the host 12.
  • the Bluetooth device only transmits signals to the host 12 and does not directly control the hand-held power tool 100.
  • the signal line 1239 extends from above the handle 111 around the connecting rod 1112, is partially fixed to the connecting rod 1112, extends into the maintenance compartment 1211, and is connected to a plurality of circuit boards housed inside the maintenance compartment 1211. .
  • the structure of the signal circuit board 1238 and the signal line 1239 in this embodiment can also be applied to other electric machines, such as a snowplow or a lawnmower.
  • the signal line for collecting and processing multiple signals is used to control the push-type power tool, so that the control structure of the push-type power tool is simplified, and the control mode is more convenient and intelligent.
  • the hand-push type electric tool 100 ' provided in this embodiment includes a chassis 10', wheels 20 ', a driving motor 30', and a control assembly 40 '.
  • the chassis 10 ' serves as a main supporting structure of the hand-push power tool 100', and integrates the wheels 20 ', the driving motor 30', and the control assembly 40 'into one body.
  • the wheels 20 'are provided to support the chassis 10', and the wheels 20 'are rotated relative to the chassis 10' to move the chassis 10 'on the ground.
  • the driving motor 30 ' is configured to drive the wheels 20' to rotate, and the driving motor 30 'is mounted to the chassis 10'.
  • the push-type power tool 100 'further includes a transmission mechanism 31', which is connected to the driving motor 30 'and the wheel 20'.
  • the control unit 40 ' is set to be controlled by the opponent push-type power tool 100'.
  • the control assembly 40 ' includes a handle 41'.
  • the user can push the push-type power tool 100 'by pushing the handle 41', and the handle 41 'is connected to the chassis 10'.
  • the push-type power tool 100 'further includes a link 50' which connects the handle 41 'and the chassis 10'.
  • the handle 41 'and the connecting rod 50' may be integrally formed, that is, the handle 41 'and the connecting rod 50' are used as one component.
  • the connecting rod 50 ' connects the handle 41' and the chassis 10 '.
  • the handle 41' is made of plastic material to facilitate molding and connection with other parts, and the connecting rod 50 'is made of metal material to ensure strength.
  • the hand-driven electric tool 100 ′ includes a work attachment 60 ′ and a work motor 70 ′.
  • the work motor 70 ′ drives the work attachment 60 ′ to perform the functions of the hand-held power tool 100 ′ and the work motor 70.
  • 'It can be an electric machine powered by electricity or an internal combustion engine powered by fuel combustion.
  • the chassis 10 ' carries a work motor 70'.
  • the work motor 70 ' is a motor.
  • the push-type power tool 100 'further includes a battery pack 80', which supplies power to the work motor 70 ', and the battery pack 80' supplies power to the drive motor 30 '.
  • a working motor may not be provided, and the working accessory may be driven by a driving motor.
  • the push-type power tool 100 'shown in Figs. 24 and 25 is a push-type power tool.
  • Hand-held power tools include lawn mower blades.
  • the mowing blade serves as a work attachment 60 'to realize the mowing function.
  • the chassis 10 ' is provided with a cutting cavity 11'.
  • the cutting cavity 11 ' receives a mowing blade, and the mowing blade rotates within the cutting cavity 11'.
  • the control assembly 40 ' includes a handle 41', a governor 42 ', an electromechanical conversion device 43', a first activation trigger 44a ', a second activation trigger 44b', and a first activation switch 45a ' , A second start switch 45b ', a work trigger 46', a work switch 47 ', a safety key 48', and a switch box 49 '.
  • the handle 41 ' is provided with a left holding portion 411a' for a user's left hand and a right holding portion 411b 'for a right hand.
  • the left grip portion 411a 'and the right grip portion 411b' are symmetrical about a plane of symmetry P1 'so that the handle 41' is symmetrical about the plane of symmetry P1 '.
  • the handle 41 ' is made of plastic.
  • the handle 41 ' includes a first handle case 412' and a second handle case 413 '.
  • the first handle case 412 'and the second handle case 413' are provided with a cavity.
  • the speed governor 42 ′ is operated by the user to adjust the rotation speed of the drive motor 30 ′.
  • the speed governor 42 ′ is adjusted relative to the handle 41 ′ to adjust the speed of the drive motor 30 ′.
  • the speed piece 42 ' is symmetrical about the symmetry plane P1', and the speed governor 42 'is disposed between the left holding portion 411a' and the right holding portion 411b '. While the user holds the left grip portion 411a 'with his left hand, the left hand can operate the speed governor 42'. Specifically, the user can operate the speed governor 42 'with the left hand's thumb while grasping the left holding portion 411a' with the left hand's hand.
  • the right hand can also simultaneously hold the right holding portion 411b 'and operate the speed governor 42' in the same manner as the left hand, which is convenient for the user to operate.
  • the speed governor 42 ' is connected to the handle 41', and the speed governor 42 'is rotated about the central axis 101' relative to the handle 41 '.
  • the central axis 101 ' is perpendicular to the plane of symmetry P1', and the speed governor 42 'is configured as an annular part.
  • the speed governor 42 ' is provided with a plurality of grooves 423' arranged along the circumferential direction of the central axis 101 ', and the grooves 423' extend along the direction of the central axis 101 'to facilitate the user's rotation.
  • Speed governor 42 ' As shown in FIG. 33, the speed governor 42 'includes a first speed governing case 421' and a second speed governing case 422 '.
  • the handle 41 ' is provided between the first speed regulating case 421' and the second speed regulating case 422 '.
  • the electromechanical conversion device 43 ' converts the position change of the speed governor 42' relative to the handle 41 'into an electric signal.
  • the electromechanical conversion device 43 ' is disposed in the handle 41', that is, the electromechanical conversion device 43 'is disposed in a cavity formed by the handle 41'.
  • the first activation trigger 44a 'and the second activation trigger 44b' are provided for the user to operate the activation drive motor 30 '.
  • the user can operate the first start trigger 44a 'and the speed governor 42' with the left hand holding the left grip portion 411a '.
  • the second activation trigger 44b' and the speed governor 42 ' are operated and activated. That is, the user can control the two functions of startup and speed regulation with only one hand.
  • the two functions of starting and speed adjustment can be controlled.
  • the first start switch 45a ' can be controlled by the first start trigger 44a' to start the driving motor 30 '.
  • the first start switch 45a ' is electrically connected to the drive motor 30'.
  • the second start switch 45b ' can be controlled by the second start trigger 44b' to start the driving motor 30 '.
  • the second start switch 45b ' is electrically connected to the driving motor 30'.
  • only one start switch may be provided, and both start triggers are set to trigger corresponding start switches to start the driving motor.
  • only one activation trigger may be provided.
  • the two starting triggers constitute a part or a synchronous movement. When the user operates the other starting trigger movement, the other starting trigger moves synchronously.
  • two start triggers and one start switch can be provided, and the drive motor can be started only when both start triggers trigger the start switch.
  • two start triggers and two start switches are provided, and one of the start triggers is set to trigger one start switch and the drive motor can be started only when both start switches are triggered, thereby preventing a user from operating the start motor by mistake. Improve the safety of the machine; or, set a start trigger, and a start switch or two start switches, and the drive motor will only be activated when the start trigger moves back and forth twice.
  • the driving motor will stop working only after both driving triggers are released after the driving motor is started. When only one driving trigger is released, the driving motor will not stop working.
  • the drive motor stops working; when only one start trigger is provided, the start trigger is released and the drive motors stop working.
  • the work trigger 46 ' is provided for a user to operate and start the work motor 70'.
  • the work trigger 46 ' includes a first movable portion 461a' and a second movable portion 461b 'for operation by a user.
  • the first movable portion 461a 'and the second movable portion 461b' approach the handle 41 'to activate the work motor 70'.
  • the working trigger 46 ' is rotated relative to the handle 41' about a first axis 102 ', which is parallel to the central axis 101'.
  • a groove is formed on the surface of the handle 41 ′ toward the depression, and the working trigger 46 ′ can be embedded in the groove when the working trigger 46 ′ is turned around the handle 41 ′ around the first axis 102 ′. This makes it easier for the user to control the working trigger 46 'in the triggering state while holding the handle 41', and keep the working motor 70 'in the working state.
  • the surface of the handle 41 ' may not be formed with a groove.
  • the handle 41 ' is rotated about the second axis 103' relative to the chassis 10 'to realize the folding storage function of the handle 41'.
  • the second axis 103 ' is parallel to the central axis 101', and the wheel 20 'is rotated about the third axis 104 relative to the chassis 10'. 'Rotation, the third axis 104' is parallel to the central axis 101 '.
  • the link 50 ' includes a first link 51' and a second link 52 ', the first link 51' and the second link 52 'form a sliding connection, and the first link 51' is opposite to the second link 52 ' Slide in the direction of the first straight line 105 '.
  • the first straight line 105 ' is perpendicular to the central axis 101', and the push-type power tool 100 'includes a battery case 81' provided to mount or receive a battery pack 80 '.
  • the battery pack 80 ' is slidably connected to the battery case 81' in the direction of the second straight line 106 '.
  • the second straight line 106 ' is perpendicular to the central axis 101'.
  • the rotation axis of the work attachment 60 ' is parallel or perpendicular to the center axis 101'.
  • the work switch 47 ' can be controlled by the work trigger 46' to activate the work motor 70 '.
  • the work switch 47 ' is electrically connected to the work motor 70'.
  • the switch box 49 ' is configured to receive the work switch 47', and the work trigger 46 'is rotatably connected to the switch box 49' about the first axis 102 '.
  • the switch box 49 ' includes a switch box cover 491' and a switch box base 492 ', the switch box 49' is fixed to the handle 41 ', the switch box 49' fixed link 50 ', the switch box cover 491' and the switch box base 492 '
  • the push-type power tool 100 'further includes a circuit board assembly 90', and the circuit board assembly 90 'controls the rotation speed of the driving motor 30' according to the electrical signal of the electromechanical conversion device 43 '.
  • the circuit board assembly 90 ' is electrically connected to the driving motor 30' and the electromechanical conversion device 43 '.
  • the circuit board assembly 90 ' is disposed on the chassis 10'. In other embodiments, the circuit board assembly 90 'may be disposed on the switch box 49' or the handle 41 '.
  • the speed governor 42 'in FIG. 27 is in a first position, and the speed governor 42' in FIG. 28 is in a second position.
  • the speed regulating member 42 ' can be rotated relative to the handle 41' from the first position to the second position.
  • the circuit board assembly 90' controls the rotation speed of the driving motor 30 'to be greater than that when the speed governor 42' is in the second position, the circuit board assembly 90 'controls the rotation speed of the drive motor 30'.
  • the electromechanical conversion device 43' outputs different electrical signals.
  • the left holding portion 411a ' includes a first holding portion 416a', the second holding portion 417a ', and the first connecting portion 418a'
  • the right holding portion 411b ' includes a third holding portion 416b'
  • the first holding portion 416a 'extends along the central axis 101' and the third holding portion 416b 'extends along the central axis 101'.
  • the fourth holding portion 417b' extends along a straight line.
  • the extending directions of the second and fourth holding portions 417a 'and 417b' intersect with the central axis 101 'obliquely.
  • the first grip portion 416a 'and the third grip portion 416b' are adjacent to the speed governor 42 '.
  • the speed governor 42 ' is located between the first holding portion 416a' and the third holding portion 416b '.
  • the first holding portion 416a ' is provided between the speed governor 42' and the first connection portion 418a '.
  • the third holding portion 416b ' is provided between the speed governor 42' and the second connection portion 418b '.
  • the first holding portion 416a ', the second holding portion 417a', and the first connection portion 418a ' constitute an L-shape.
  • the third holding portion 416b ', the fourth holding portion 417b', and the second connection portion 418b ' constitute an L-shape.
  • the maximum size of the speed governor 42' is larger than the maximum size of the first holding portion 416a ', and the maximum size of the speed governor 42' is larger than the maximum size of the third holding portion 416b '.
  • the maximum size of the first holding portion 416a ' is the same as the maximum size of the third holding portion 416b'. It is convenient for the user to control the speed governor 42 'with the thumb while holding the first gripping portion 416a' and the third gripping portion 416b '.
  • the maximum size of the first holding portion 416a' is the same as the maximum size of the third holding portion 416b '.
  • the first grip portion 416a 'and the third grip portion 416b' are symmetrical with respect to the plane of symmetry P1 '.
  • the first activation trigger 44a 'is provided at the left holding portion 411a', the second activation trigger 44b 'is provided at the right holding portion 411b', and the first activation trigger 44a 'and the second activation trigger 44b' are rotatably connected to the handle 41 '.
  • the activation trigger 44a ' includes a first operation portion 441a' protruding from the handle 41 ', and the activation trigger 44b' includes a second operation portion 441b 'protruding from the handle 41'.
  • the first operation portion 441a ' can be held by the user while holding the left
  • the holding portion 411a ' is operated to start the driving motor 30'
  • the second operation portion 441b ' can be operated by the user to start the driving motor 30' while holding the right holding portion 411b '.
  • the first operation portion 441a 'and the second operation portion 441b' protrude backward from the handle 41 '.
  • the first operation portion 441a ' can be moved forward by the user to start the drive motor 30' while holding the left holding portion 411a ', and the second operation portion 441b' can be operated forward by the user when holding the right holding portion 411b '. Movement to start the drive motor 30 '.
  • the drive motor 30 ' drives the push-type power tool 100' to move forward.
  • pushing the handle 41 'forward can start the driving motor 30'.
  • the first activation trigger 44a 'and the second activation trigger 44b' are set in front of the handle 41 ', when the handle 41' is pulled backward, the first activation trigger 44a 'and the second activation trigger 44b' are still subject to the force from the hand As a result, the first start trigger 44a 'and the second start trigger 44b' are turned on, that is, the driving motor 30 'is not turned off, and it is difficult for the user to pull the machine backward.
  • the maximum distance from any point on the first trigger 44a 'and the second trigger 44b' to the handle 41 ' is less than or equal to 20 mm. It is convenient for the user to release the first activation trigger 44a 'and the second activation trigger 44b' when the handles 41 'are pulled backward when the grips of the left and right grips 411a' and 411b 'are relaxed.
  • the first trigger 44a ' is provided on the first holding portion 416a' and the first connection portion 418a '
  • the start trigger 44b' is provided on the first holding portion 416b 'and the connection portion 418b' .
  • one end of the first operation portion 441a ' is provided at the first holding portion 416a'; the other end of the first operation portion 441a 'is provided at the connection portion 418a'.
  • a first end of the second operation portion 441b ' is provided at the first holding portion 416b', and a second end of the second operation portion 441b 'is provided at the second connection portion 418b'.
  • the first starting trigger 44a' can be controlled with the palm of the hand.
  • the first starting trigger 44a' is triggered, and the hand-held power tool 100 'In a self-propelled state. Easy and fast operation.
  • the user can control the second activation trigger 44b' with the palm of his hand.
  • the first activation trigger 44a ' is not located on the second grip portion 417a', and the second activation trigger 44b 'is not located on the fourth grip portion 417b'.
  • the first activation trigger 44a 'and the second activation trigger 44b' will not be caused by the user holding the second holding portion 417a 'and the fourth
  • the user can hold the second holding portion 417a 'and the fourth holding portion 417b' for operation.
  • the user When the user holds the second holding portion 417a 'and the fourth holding portion 417b', the user can control the first starting trigger 44a 'and the second starting trigger 44b' with his thumb, so that the hand-driven electric tool 100 'enters a self-propelled state. .
  • the working trigger 46 ' includes a first movable portion 461a' for the left hand operation of the user and a second 461b 'for the right hand operation of the user.
  • the first movable portions 461a 'and 461b' are provided in front of the handle 41 '.
  • the user operates the first movable portions 461a ', 461b' to move backward to activate the work motor 70 '.
  • the left holding portion 411a ', the first movable portion 461a', and the first operation portion 441a ' can be held by a user with one hand.
  • the right holding portion 411b ', the second movable portion 461b', and the second operation portion 441b ' can be held by the user with one hand.
  • the first movable portions 461a ', 461b' extend in a straight line.
  • the working trigger further includes an intermediate portion 462 'that connects the first movable portion 461a' and the second movable portion 461b '.
  • the intermediate portion 462 ' is offset from a straight line extending from the first movable portion 461a' and the second movable portion 461b '.
  • the handle 41 ' is formed with a receiving groove capable of receiving the first movable portion 461a' and the second movable portion 461b '.
  • the first movable portion 461a' and the second movable portion 461b ' are located in the receiving slot, which is convenient for the user to hold the left holding portion 411a' and the right holding portion 411b '.
  • the first start trigger 44a ' is set to trigger the start switch 45a', and the start trigger 44b 'is set to trigger the start switch 45b'.
  • the handle 41 ' is provided with a first passage hole 414a' and a second passage hole 414b '.
  • the first activation trigger 44a ' protrudes out of the handle 41' through the first through hole 414a '
  • the second activation trigger 44b' protrudes out of the handle 41 'through the second through hole 414b'.
  • the first handle housing 412 ' is formed with a first through hole 414a' and a second through hole 414b '.
  • the first and second triggers 44a 'and 44b' are symmetrical with respect to the plane of symmetry P1 '.
  • the first activation switch 45a 'and the second activation switch 45b' are disposed in the handle 41 '.
  • the first activation switch 45a 'and the second activation switch 45b' are symmetrical with respect to the
  • the electromechanical conversion device 43 ' is disposed in the handle 41'.
  • the electromechanical conversion device 43 ' is located between the left holding portion 411a' and the right holding portion 411b '.
  • the electromechanical conversion device 43 ' corresponds to the position of the speed governor 42'.
  • the electromechanical conversion device 43 ' is a sliding varistor
  • the potentiometer belongs to a sliding varistor
  • the electromechanical conversion device 43' may be a potentiometer.
  • the sliding varistor includes a main body 431 'and a slider 432' sliding relative to the main body 431 '.
  • the sliding varistor outputs different electrical signals when the slider 432' is at different positions relative to the main body 431 '.
  • the movement of the speed governor 42 ' drives the slider 432' to move relative to the body 431 '. More specifically, rotation of the speed governor 42 'relative to the handle 41' drives the slider 432 'to slide relative to the body 431'.
  • the speed governor 42 ' is formed with an inclined groove 424' inclined to the central axis 101 ', and the inclined groove 424' cooperates with the slider 432 '.
  • the hand-held power tool 100 'further includes a connecting member 433', the connecting member 433 'is fixed to the slider 432', the connecting member 433 'passes through the long hole 415', and extends into the chute 424 of the speed regulating member 42 '. 'Into achieve the cooperation of the chute 424' and the slider 432 '.
  • the chute 424 ' moves relative to the body 431 'in a direction parallel to the central axis 101'.
  • the handle 41 ' is formed with an elongated hole 415'; wherein the elongated hole 415 'extends in a direction parallel to the central axis 101'.
  • the elongated hole 415 'guide slider 432' slides relative to the handle 41 'in a direction parallel to the central axis 101'.
  • the first through hole 414a ', the second through hole 414b', and the long hole 415 ' are located on the same side of the handle 41'.
  • the long hole 415 ', the first through hole 414a', and the second through hole 414b ' are provided on the first handle housing 412'.
  • the electromechanical conversion device is a sensor, and the sensor detects the position of the speed governor 142 'relative to the handle 141'.
  • the electromechanical conversion device is a Hall sensor 143 '.
  • the Hall sensor 143' detects the position of the speed governor 142 'relative to the handle 141' as shown in FIG. 35.
  • the Hall sensor 143 ' includes a Hall element 1431' and a magnetic piece 1432 ', the magnetic piece 1432' fixes the speed governor 142 ', and the Hall element 1431' is fixed to the handle 141 '.
  • the Hall sensor 143 When the magnetic member 1432 'is located at a different position with respect to the Hall element 1431', the Hall sensor 143 'outputs different electrical signals. Rotation of the speed regulating member 142 'relative to the handle 141' drives the magnetic member 1432 'to rotate relative to the Hall element 1431'.
  • the electromechanical conversion device is a Hall sensor 234 ', and the Hall sensor 234' detects a position of the speed governor 242 'relative to the handle 241'.
  • the Hall sensor includes a Hall element 2431 'and two magnetic pieces 2432', and the two magnetic pieces 2432 'are fixed to the speed regulating piece 242'.
  • the magnetic directions of the two magnetic members 2432 ' are opposite, and the Hall element 2431' is fixed to the handle 241 '.
  • the Hall element 2431 ' extends beyond the handle 241' and is located between the two magnetic pieces 2432 '.
  • the magnetic member 2432 ' moves relative to the Hall element 2431'.
  • the Hall sensor 234 outputs different electrical signals. Rotation of the speed regulating member 242 'relative to the handle 241' drives the magnetic member 2432 'to rotate relative to the Hall element 2431'.
  • the electromechanical conversion device may be a touch screen, and a user's finger slides on the touch screen to output different electrical signals to control the rotation speed of the driving motor.
  • the electromechanical conversion device may be a slider.
  • the user's finger slides from the back to the front once on the slider to increase the speed of the drive motor by one gear, and the speed of the drive motor increases; The speed of the motor is reduced.
  • the hand-push power tool 200 ' is a snowplow.
  • the snowplow includes a work motor 210 ', a snowplow 220', a snow thrower 230 ', and a chassis 240'.
  • the snow removing paddle 220 ' implements a snow removing function as a working accessory.
  • the snow thrower 230 ' is provided to guide snow movement.
  • the work motor 210 ' drives the snowplow to rotate to drive the snow from the snow thrower 230'.
  • the chassis 240 ' is formed with a cavity 250'. Snowplow 220 'rotates within cavity 250'.
  • control unit 260 'of the snowplow shown in Fig. 37 is the same as the control unit 40' of the hand-held power tool shown in Fig. 24.

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Abstract

一种手推式电动工具(100),包括:主机(12);操作装置(11),连接至主机(12)以供用户操作手推式电动工具(100);主机(12)包括:工作组件,实现手推式电动工具(100)的功能;主电机,用于驱动工作组件以转动轴线为轴转动;操作装置(11)包括:操作组件,供用户操作并发出信号;操作装置(11)还包括:信号收集装置,收集并处理操作组件发出的信号;总线,连接主机(12)和信号收集装置;总线包括:信号线,分别与信号收集装置以及主机(12)相连使得信号收集装置与主机(12)实现通信连接。

Description

手推式电动工具
本申请要求申请日为2018年6月29日、申请号为201810695890.0的中国专利申请的优先权,该申请的全部内容通过引用结合在本申请中。
技术领域
本公开涉及一种电动机械,例如涉及一种手推式电动工具。
背景技术
电动机械一般包括设置为实现不同功能的功能元件,以及供用户操作以控制该电动机械的操作装置,具体而言用户通过操作装置发送信号至包括电机在内的多个功能元件,从而控制功能元件的运动。相关技术中,大多数手推式电动工具,例如手推式割草机或手推式扫雪机,尤其是直流手推式电动工具,均通过操作开关等操作件,利用电流控制功能元件,而非通过信号控制功能元件,这使得机器的结构不够简化且控制方式单一。
发明内容
本公开提供了一种结构简化且控制更加方便、智能的手推式电动工具。
一种手推式电动工具,包括:主机;操作装置,连接至主机以供用户操作手推式电动工具;主机包括:工作组件,实现手推式电动工具的功能;主电机,用于驱动工作组件以转动轴线为轴转动;操作装置包括:操作组件,供用户操作并发出信号;操作装置还包括:信号收集装置,收集并处理操作组件发出的信号;总线,连接主机和信号收集装置;总线包括:信号线,分别与信号收集装置以及主机相连使得信号收集装置与主机实现通信连接。
附图说明
图1是实施例一的手推式电动工具的示意图;
图2是实施例一的手推式电动工具的平面图;
图3是图2中的手推式电动工具的立体图;
图4是图3中的手推式电动工具的主机的俯视图,维修仓处于封闭状态;
图5是图4中的主机的部分结构的立体图,维修仓处于敞开状态;
图6是图5中的维修仓的平面图;
图7是图5中的维修仓的立体图;
图8是图4中的主机的部分结构的爆炸图;
图9是图2中的手推式电动工具的操作装置的部分结构的立体图;
图10是图2中的手推式电动工具的操作装置的部分结构立体图;
图11是图4中的主机的部分结构的立体图;
图12是图4中的主机的部分结构的立体图;
图13是图4中的主机的部分结构的平面图,仓盖处于关闭状态;
图14是图4中的主机的部分结构的平面图,仓盖处于打开状态;
图15是图14中的主机的电池包仓体的立体图;
图16是图4中的主机的部分结构的立体图,电池包处于取出状态;
图17是图4中的主机的部分结构的剖视图,电池包安装至电池包仓体内;
图18是图4中的主机的底盘和碎草盖的爆炸图;
图19是图4中的主机的底盘和碎草盖的仰视图;
图20是图4中的主机的底盘和碎草盖的部分剖视图;
图21是图4中的主机的部分结构的立体图;
图22是图4中的主机的部分结构的爆炸图;
图23是图2中的手推式电动工具的部分结构的立体图;
图24是实施例二的手推式电动工具的示意图;
图25是图24中手推式电动工具的另一视角的示意图;
图26是图24中手推式电动工具的部分结构的爆炸图;
图27是图24中手推式电动工具的控制组件的示意图;
图28是图27中控制组件的开关盒的内部结构示意图;
图29是图27中控制组件的把手的内部结构示意图;
图30是图27中控制组件的部分结构的爆炸图;
图31是图27中控制组件的另一视角的示意图;
图32是图27中控制组件的机电转换装置和调速件的示意图;
图33是图32中调速件的爆炸图;
图34是图32中机电转换装置和调速件的另一视角示意图;
图35是一种机电转换装置、调速件和把手的示意图;
图36是另一种机电转换装置、调速件和把手的示意图;
图37是另一种手推式电动工具的示意图。
具体实施方式
图1所示的电动机械可以为在室内或者户外进行工作的电动机械,在本实施例中,该电动机械具体以手推式电动工具100为例,手推式电动工具100具体为手推式割草机,可以供用户操作该手推式割草机的操作装置来修剪草坪及植被等。为方便说明,规定如图1所示的前后、上下方向,手推式电动工具100在地面上行进时,用户站立的一侧为后侧,相对侧为前侧,远离地面的一侧为上方,靠近地面的一侧为下方。
在一实施例中,该电动机械具体还可以为其它类型的手推式电动工具,例如手推式扫雪机、全地形车及高尔夫球车,还可以是通过输出预设形式的动力来实现电动工具功能的手推式电动工具,事实上,只要这些工具包括本申请中的以下描述的实质性内容均属于本申请所保护的范围。
实施例一
如图1至图3所示,手推式电动工具100包括:操作装置11及主机12。操作装置11供用户手持以操作手推式电动工具100,主机12包括主机壳体121、底盘122及电气装置123,操作装置11与主机壳体121转动连接,电气装置123包括多个电气组件。主机还包括实现手推式电动工具100的功能的工作组件125,本实施例中工作组件125具体为切割刀片。
如图1至图7所示,主机壳体121弯折形成有设有可容纳多个电气组件的维修仓1211。维修仓1211可以由主机壳体121围绕多个电气组件弯折形成,也可以为独立于主机壳体121的仓体,在一实施例中,主机12中的维修仓1211及维修盖1212等独立于主机壳体121的壳体类部件均可视为主机壳体121的一部分。在本实施例中,如图4和图5所示,维修仓1211形成有朝向外界的开口,维修仓1211配备有维修盖1212,维修盖1212与维修仓1211的开口处构成可拆卸连接,当维修盖1212被拆除时,维修仓1211开口全部敞开,且当手推式电动工具100水平放置至地面时,维修仓1211开口朝上;当维修盖1212盖住维修仓1211时,维修仓1211与维修盖1212形成有容纳腔,可通过维修盖1212与维修仓1211开口连接处的密封结构使得该容纳腔相对封闭,防止水汽及灰尘等进入容纳腔,本实施例中维修仓1211和维修盖1212之间采用止口连接结构,在一实施例中,维修仓1211和维修盖1212之间还可以采用密封圈或迷宫等结构进行密封。
本实施例中,维修盖1212与主机壳体121之间通过螺钉等紧固件构成可拆卸连接,对维修仓1211内部零件进行维修及其他操作时,需要拆卸螺钉,取下维修盖1212。在一实施例中,维修盖1212与主机壳体121也可通过其他非螺纹连接的紧固件构成固定连接或者通过连接件构成活动连接,例如,通过卡扣构成可拆卸连接,通过滑轨滑槽等构成滑动连接,或者通过铰链等构成转动连接。维修盖1212可相对主机壳体121转动或者滑动以形成维修仓1211至少部分敞开的多个维修位置,从而方便对手推式电动工具100进行维修。如图8所示,在本实施例中,维修盖1212大致呈“凹”字型,包括前后左右四条边界,前后边界的距离约为221毫米,左右边界的距离约为247毫米,在上下方向形成有阶梯结构。维修仓1211的外形与尺寸与维修盖1212类似,在一实施例中,维修盖1212与维修仓1211的形状尺寸不限于此,维修盖1212与维修仓1211大致呈矩形,且维修盖1212为垂直于上下方向的平面结构。
如图16所示,手推式电动工具100还包括设置为提供工作能源的电池包1237,主机壳体121还围绕电池包1237弯折形成电池包仓体1213,电池包1237放置于所述电池包仓体1213内部,在本实施例中,维修仓1212设置于电池包仓体1213与操作装置11之间,在一实施例中,维修仓1212设置于电池包仓体1213之后,操作装置11之前。在其他实施例中,电池包仓体1213还可以设置于主机12的其他合理位置。
在本实施例中,维修仓1211内部容纳有:第一电路板1231,设置有用于驱动主电机的驱动电路。其中,主电机为设置为驱动工作组件125转动的电机;第二电路板1232设置有控制驱动电路的控制电路;第三电路板1233与保险丝1234电连接。在一实施例中,用于驱动主电机的驱动电路和设置为控制驱动电路的控制电路可以设置在同一电路板上,例如第一电路板1231设置有设置为驱动主电机的驱动电路和设置为控制驱动电路的控制电路。另外,与第三电路板1233电连接的还可以是除保险丝1234和电机以外的其他功能组件。本实施例中将第一电路板1231、第二电路板1232以及第三电路板1233均设置在维修仓1211内,结构排布紧凑,节省了主机内部空间且使得日常维修更加方便。维修仓1211内还容纳有连接电容的第四电路板1235以及设置为驱动自走电机的驱动电路的第五电路板1236,其中,自走电机为驱动手推式电动工具行走轮的电机。
维修仓1211的仓壁还形成有进风口1211a以及出风口1211b,气流从进风口1211a进入,流经维修仓1211内部继而从出风口1211b流出,达到对维修仓1211 内的多个电气组件进行散热的目的,同时也能带走维修仓1211内附着的灰尘等杂质。气流在维修仓1211内形成如图7所示的风路,从图7中可见,风路流经上述多个电路板,同时,通过出风口1211b的气流流经保险丝1234以及与保险丝1234连接的第三电路板1233。在本实施例中,维修仓1211风路的设置主要为了对电容、连接电容的第四电路板1235、保险丝1234以及连接保险丝1234的第三电路板1233进行散热,同时充分利用该风路对其他电气组件进行散热。因此,在一实施例中,散热风路的走向设计多种多样,能实现对电容及保险丝1234散热的其他形式的风路设计也在本申请的保护范围内。
如图1至图7所示,底盘122与操作装置11构成转动连接,在用户操作手推式电动工具100时可通过锁紧结构固定该转动连接使得操作装置11相对底盘122固定。主机壳体121包括前端和后端,后端与操作装置11连接;前端位于主机壳体121的端部且与后端相对。主机壳体121的前端的上部与第一抬起部1214构成可拆卸连接,主机壳体121的后端的上部与第二抬起部1215构成可拆卸连接,第一抬起部1214远离操作装置11,第二抬起部1215位于第一抬起部1214与操作装置11之间。在一实施例中,第二抬起部1215相对操作装置11的位置不限于上述位置。用户可用一只手握持第一抬起部1214向上抬起使手推式电动工具100的前端至少部分脱离地面,也可用一只手握持第二抬起部1215向上抬起使手推式电动工具100的后端至少部分脱离地面,若用户用两只手分别握持第一抬起部1214与第二抬起部1215向上抬起可使得整个手推式电动工具100脱离地面,此外,也可以借助第一抬起部1214与第二抬起部1215对手推式电动工具100进行移动及翻转等操作。在本实施例中,第一抬起部1214与第二抬起部1215为独立于主机壳体121的可握持结构,第一抬起部1214与主机壳体121的前端可拆卸连接,第二抬起部1215与后端构成可拆卸连接,在其他实施例中,第一抬起部1214与第二抬起部1215也可与主机壳体121构成转动连接,使得第一抬起部1214与第二抬起部1215相对主机壳体121以平行于轮轴的轴线转动,从而使得用户可以更加灵活地操作第一抬起部1214与第二抬起部1215。在一实施例中,第一抬起部1214与第二抬起部1215也可以由主机壳体121本身形成,与主机壳体121为一体式结构。
手推式电动工具100工作时具有一个工作平面,如图1所示,工作组件125在工作平面内以转动轴线101为轴转动,第一抬起部1214与第二抬起部1215位于工作平面的同一侧,且相对于地面工作组件125位于主机壳体121的下侧,而第一抬起部1214与第二抬起部1215位于主机壳体121的上侧。第一抬起部1214与第二 抬起部1215在工作平面内的正投影均位于主机壳体121在工作平面内的正投影之内,这使得手推式电动工具100在地面行走时,主机壳体121总会先于第一抬起部1214与第二抬起部1215接触到垂直于工作平面的任意壁面。
手推式电动工具100沿地面行走至主机壳体121的前端与竖直壁面接触时,第一抬起部1214与竖直壁面之间的水平距离大于0,这使得主机壳体121先于第一抬起部1214接触到前方障碍物,为了使得手推式电动工具100整体结构更加合理紧凑,第一抬起部1214与竖直壁面之间的水平距离大于等于99毫米且小于等于131毫米,在本实施例中,第一抬起部1214与竖直壁面之间的水平距离约为147毫米。另外,第一抬起部1214与第二抬起部1215之间的水平距离大于等于564毫米且小于等于628毫米,该水平距离下限要求第一抬起部1214与第二抬起部1215之间不能相隔太近,使得用户抬起第一抬起部1214与第二抬起部1215时手推式电动工具100能够保持相对平稳不发生大幅度的歪斜,而该水平距离上限则要求第一抬起部1214与第二抬起部1215之间不能相隔太远,在工作平面内的正投影应包含在主机壳体121在在工作平面内的正投影之内,防止第一抬起部1214与第二抬起部1215碰壁损坏,同时也防止第一抬起部1214与第二抬起部1215扩大手推式电动工具100切割时的切割死角。在本实施例中,第一抬起部1214与第二抬起部1215之间的水平距离约为608毫米。
在一实施例中,第一抬起部1214的最前端与转动轴线101之间的水平距离大于等于0且小于等于350毫米,这减少了位于主机壳体121前端的第一抬起部1214对工作组件125切割范围的限制,一定程度上抑制了工作组件125的阻挡导致手推式电动工具100切割时出现切割死角。在本实施例中,第一抬起部1214最前端与转动轴线101之间的水平距离约为330毫米。
如图1至图8所示,手推式电动工具100还包括照明装置124,照明装置124包括设置为照明的照明组件1241,设置为接通或切断照明组件1241的照明开关1242,设置为指示照明组件1241是否发光的照明指示组件1243以及设置为控制照明组件1241和照明指示组件1243的照明电路板1244。在本实施例中,照明组件1241在手推式电动工具100前进方向上安装于靠近电池包仓体1213的主机壳体121的左右两侧,当照明开关1242被触发时,照明组件1241朝向手推式电动工具100前进方向的前侧发光。照明指示组件1243位于照明组件1241与操作装置11之间,同时也位于电池包仓体1213与操作装置11之间,照明指示组件1243可被设置于在用户位于手推式电动工具100的后侧以操作操作装置11时能够观察到 的可视区域内的任意合理位置。
在本实施例中,如图8所示,照明开关1242上还形成有灯座1242a,照明指示组件1243安装于灯座1242a上,与灯座1242a构成固定连接。照明开关1242安装在维修盖1212上,维修盖1212上形成有供照明开关1242以及照明指示组件1243部分露出的通孔1212a,通过照明指示组件1243所呈现出的不同颜色来分辨照明组件1241是否处于发光状态。照明开关1242与通孔1212a之间构成过盈配合,在一实施例中,照明指示组件1243也可以其他连接形式连接于维修盖1212上。
设置为控制照明组件1241和照明指示组件1243的照明电路板1244位于维修仓1211内部,照明组件1241和照明指示组件1243均电连接至照明电路板1244。照明开关1242还包括弹性部1242b,弹性部1242b与通孔1212a之间构成过盈配合,向下按压照明开关1242时,弹性部1242b发生弹性形变使得照明开关1242发生向下的位移,触发照明电路板1244上的相关电气组件,进而使得照明组件1241被点亮。
本实施例中的照明装置124还可以应用于其他工具上,例如扫雪机、全地形车、高尔夫球车或叉车等,其照明装置的构成以及位置排布均可借鉴本实施例中的照明装置124,在此不作过多赘述。
如图1至图10所示,手推式电动工具100的操作装置11与主机12连接,供用户操作手推式电动工具100。操作装置11包括供用户推动手推式电动工具100沿地面行走的把手111,把手111包括供用户握持的握持部1111,握持部1111包括第一握持部1111a和第二握持部1111b,第一握持部1111a沿第一直线102方向延伸,在本实施例中第一握持部1111a和第二握持部1111b为一体式结构,在一实施例中,握持部1111也可以由独立的第一握持部1111a和第二握持部1111b连接而成。把手111还包括连接握持部1111和主机12的连接杆1112,在本实施例中,连接杆1112沿垂直于第一直线102的第二直线103方向延伸。
操作装置11还包括控制驱动手推式电动工具100的行走轮实现自行走的自走电机启停的第一开关112和第二开关113,第一开关112和第二开关113均安装至把手111,更具体地,第一开关112和第二开关113均安装至握持部1111。
操作装置11还包括设置有驱动自走电机的驱动电路的第五电路板1236,第一开关112和第二开关113均电连接至第五电路板1236,且只有当第一开关112和第二开关113均被触发时,第五电路板1236上的驱动电路才能控制自走电机启动,手推式电动工具100才能沿地面实现自行走,这使得在非工作情况下第一开关 112或者第二开关113被偶然触发时,自走电机也不会启动,保证了操作的安全性。在自走电机启动后,第一开关112和第二开关113其中的一个被释放,不再处于触发状态时,控制电路仍然控制自走电机保持在启动状态而不会关闭,只有当第一开关112和第二开关113两者均被释放均不再处于触发状态时,自走电机才会被关闭。在一实施例中,操作装置11也可以包括控制自走电机启停的第一开关112,第一开关112电连接至设置有驱动自走电机的驱动电路的第五电路板1236,在第一开关112被触发两次以上时,驱动电路才会控制自走电机启动,这也避免了偶然的一次触发启动自走电机,保证操作安全性。
在本实施例中,第一开关112和第二开关113安装于握持部1111,握持部1111形成有安装第一开关112和第二开关113的凹槽或孔,第一开关112和第二开关113部分嵌入该凹槽或孔内,与握持部1111构成固定连接,在一实施例中,第一开关112和第二开关113也可连接至握持部1111表面。另外,第一开关112和第二开关113设置于第一握持部1111a与第二握持部1111b连接处,也即是用户操作时最方便握持的部位,在其他实施例中,第一开关112和第二开关113还可以设置于操作装置11的其他位置,把手111的结构不限于本实施例中的结构,第一开关112和第二开关113的具体位置也可根据把手111的具体结构而设定。在一实施例中,第一开关112和第二开关113的设置甚至可以不局限于操作装置11,可以将其中一个开关设置于主机12上,当两个开关均被触发时自走电机启动,两个开关均被释放时自走电机停止工作。
如图10所示,操作装置11还包括扳机114和电源开关115,扳机114与操作装置11构成转动连接,可相对于把手111以第三直线104为轴转动。扳机114和电源开关115均电连接至第二电路板1232,第二电路板1232设置有控制驱动电路的控制电路。当触发电源开关115且将扳机114扳动至启动位置时,该控制电路控制工作组件125开始转动,触发电源开关115且保持114扳动停留在启动位置则可使工作组件125保持转动。一般而言,扳机115停留在启动位置时可与把手111相贴合,使得用户可以在握持把手操作手推式电动工具100的同时保持扳机114停留在启动位置。在本实施例中,握持部1111形成有向内凹陷的凹槽1111c,当扳机114被扳动至启动位置时,扳机114容纳至凹槽1111c中,限定了扳机114相对于握持部1111的位置,使得用户握持扳机114与握持部1111时更加方便省力。
如图1至图12所示,手推式电动工具100包括实现手推式电动工具100自行走的行走组件126,如图11所示,行走组件126包括驱动行走轮以第四直线105为轴 转动的第一驱动轴1261。手推式电动工具100还包括调节底盘122使得底盘122能够产生上下位移的调高组件127,如图11和图12所示,调高组件127包括接受调节动力的调节手柄1271、驱动底盘122移动的第二驱动轴1272以及连接调节手柄1271和第二驱动轴1272的连杆机构1273。第一驱动轴1261、第二驱动轴1272以及第四轴线105三者相互平行,且第二驱动轴1272相对第四轴线105以及第一驱动轴1261均为偏心设置。在手推式电动工具100处于不同工况,需要根据实际情况调节底盘122距离地面的高度,用户通过操作调节手柄1271,施加一个驱动力,该驱动力带动连接机构1273转动,从而带动第二驱动轴1272以及底盘122转动从而实现对底盘122高度的调节。
如图11所示,主机12还包括挡草板128,用户操作手推式电动工具100时一般位于手推式电动工具100后侧,挡草板128设置为阻止草屑朝手推式电动工具100后侧飞溅。一般而言,挡草板128可安装至底盘122或者主机壳体121,但这使得在对底盘122进行高度调节时,挡草板128也随着底盘122或者主机壳体121上下移动,久而久之与地面等接触体产生磨损,影响挡草板128的使用性能及使用寿命。
在本实施例中,调高组件127还包括在行走轮中心A与行走轮构成转动连接的连接件1274,连接件1274与第一驱动轴1261构成转动连接,与第二驱动轴1272构成固定连接,在本实施例中连接件1274与第二驱动轴1272为焊接形成的一体式结构,挡草板128安装至第二驱动轴1272。第一驱动轴1261支撑底盘122,底盘122转动连接至第一驱动轴1261。可通过合理设定第一驱动轴1261至行走轮中心A的距离,第二驱动轴1272至行走轮中心A的距离,以及第一驱动轴1261至行走轮中心A的距离与第二驱动轴1272至行走轮中心A的比值,使得调高组件127对底盘122进行高度调节时,第二驱动轴1272带动连接件1274围绕行走轮中心A转动,连接件1274带动底盘122围绕行走轮中心A转动,挡草板128在上下方向上发生的位移小于底盘122在上下方向上发生的位移的一半。在本实施中,第一驱动轴1261至行走轮中心A的距离与第二驱动轴1272至行走轮中心A的比值约为1.52,使得调高组件127对底盘122进行高度调节时,挡草板1272产生的上下位移远小于底盘122产生的上下位移。
在一实施例中,挡草板128也可连接至第一驱动轴1261或者其他位置,但在调高组件127对底盘122进行高度调节时,行走轮中心A的位置是不变的,挡草板128的连接位置更靠近行走轮中心A的位置,也即是说,挡草板128连接至主机12 的位置与行走轮中心A的位置可以无限贴近甚至重合,使得挡草板128在上下方向上位置基本保持恒定。
如图1至图17所示,主机12还包括设置为给自走电机和主电机提供能量来源的电池包,在本实施例中,如图17所示,电池包为电池包1237,主机壳体121包括电池包仓体1213,电池包仓体1213为连接至主机壳体121的独立壳体,在一实施例中,电池包仓体1213也可以由主机壳体121一体形成。主机12还包括电池包仓盖1216,电池包仓盖1216与电池包仓体1213构成转动连接,可以第五直线106为轴转动。电池包仓体1213敞开形成有连通内部与外部的窗口1217,电池包仓盖1216相对于窗口1217具有打开状态和关闭状态。当电池包仓盖1216相对于窗口1217处于打开状态时,窗口1217连通电池包仓体1213的内部与外部,电池包可从电池包仓体1213中取出,也即是电池包1237与电池包仓体1213构成可拆卸连接;当电池包仓盖1216相对于窗口1217处于关闭状态时,电池包仓体1213与电池包仓盖1216构成大致封闭的容纳空间,即电池包仓体1213,电池包1237容纳于电池包仓体1213内部。
在本实施例中,如图4和图7所示,维修盖1212还形成有卡槽1212b,如图14所示,电池包仓盖1216形成有卡勾1216a,当电池包仓盖1216相对于窗口1217处于关闭状态时,卡勾1216a卡入卡槽1212b与卡槽1212b构成限位结构使得电池包仓盖1216相对于电池包仓体1213不发生转动。在其他实施例中,卡勾1216a与卡槽1212b的设置位置灵活,维修盖1212可形成有卡勾1216a,电池包仓盖1216可形成有卡槽1212b,或者,在电池包仓盖1216上形成卡勾1216a,在电池包仓体1213上形成卡槽1212b。另外,设置为限定电池包仓盖1216,使电池包仓盖1216相对电池包仓体1213保持在关闭状态的限位结构不仅仅限于卡勾1216与卡槽1212b的配合结构,可以是其他可拆卸的限位结构,例如磁铁或锁定件等。
如图14和图15所示,在电池包仓体1213外表面靠近电池包仓体1213连接电池包仓盖1216的位置还形成有支撑电池包仓盖1216并使电池包仓盖1216相对电池包仓体1213保持在打开状态的支撑部1213a。支撑部1213实际上限制了电池包仓盖1216相对于电池包仓体1213的转动角度,使得电池包仓盖1216转过预设角度后不能继续转动,在本实施例中,电池包仓盖1216相对于电池包仓体1213可转动的角度范围约为0至65°,也即是说,当电池包仓盖1216受到支撑部1213支撑,保持打开状态时,电池包仓盖1216与电池包仓体1213之间形成的角度约为65°。在一实施例中,电池包仓盖1216相对于电池包仓体1213可转动的角度大 于0°小于180°,可根据电池包仓体1213相对于底盘122形成的角度以及主机壳体121的结构等合理设定介于0至180°之间的其他范围值作为电池包仓盖1216相对于电池包仓体1213可转动的角度范围。
在本实施例中,当电池包仓盖1216相对于电池包仓体1213处于打开状态时,可通过下压把手111使主机12远离把手111的一端向上抬起,使得电池包仓盖1216的重心位置发生偏移,电池包仓盖1216在重力作用下转动,由打开状态复位至关闭状态,同时使得卡勾1216a在重力作用下卡入卡槽1212b,从而省去了需要手动操作电池包仓盖1216使得电池包仓盖1216由打开状态转动至关闭状态并向下按压电池包仓盖1216使得卡勾1216a卡入卡槽1212b。另外,在本实施例中,由于第一抬起部1214相对于主机壳体121设置于电池包仓体1213前端,当电池包仓盖1216相对于电池包仓体1213处于打开状态时,向上抬起第一抬起部1214也可同样使得主机12远离把手111的一端向上抬起,从而使得电池包仓盖1216在重力作用下由打开状态复位至关闭状态,同时使得卡勾1216a在重力作用下卡入卡槽1212b。
如图1至图17所示,主机壳体121的电池包仓体1213包括主体部,主体部围绕形成有凹槽,该凹槽向主机壳体121内部凹陷,凹槽可以是与主机壳体121一体成型也可以是独立结构连接至主机壳体121,电池包仓体1213形成有插入口供电池包1237插入,在本实施例中,插入口即窗口1217。
电池包仓体1213与电池包仓盖1216共同沿围绕电池包1237的方向弯折形成容纳电池包1237的电池包仓。
如图16所示,电池包仓内部还形成有导向电池包1237沿一个插装方向结合至主机壳体121的结合部1213b,结合部1213b既可以与主机壳体121一体成型,也可以为独立结构连接至电池包仓体1213或者电池包仓盖1216,本实施例中,结合部1213b为与电池包仓体1213一体成型的滑轨,电池包1237装入电池包仓体1213时,沿滑轨从上往下滑动至电池包仓体1213底部,当然,结合部1213b也可以是其他任何具有位移导向功能的结构。
主机12还可以包括设置为将电池包1237固定在电池包仓中的预设位置的固定部,在电池包1237插入电池包仓体1213底部后,通过操作电池包1237或者固定部使得电池包1237与固定部构成可拆卸连接,该固定部可以为一体形成或安装至电池包1237或者主机壳体121的卡扣或磁性组件等,在此不做限定。
在本实施例中,电池包1237沿图16所示方向从插入口沿着滑轨插入电池包 仓体1213。在本实施例中,电池包仓体1213相对于水平面成预设角度的倾斜,具体为从竖直方向向后倾斜,因此电池包1237也相对水平面以预设角度装插至电池包仓体1213。电池包1237的插装方向与水平面的夹角大于等于30°且小于等于80°,在一实施例中,电池包1237的插装方向与水平面的夹角为54°,也即是说,电池包仓体1213以及滑轨相对于水平面的倾斜角度也为54°,在其他实施例中,该夹角也可以为以上范围的其他值。
电池包1237还形成有设置为显示电量的电量显示灯1237a,在电池包1237插装至结合部1213b时,电量显示灯1237a沿所述插装方向发光。电量显示灯1237a可以设置于电池包1237上任意位置,为方便可视化,大多设置在电池包1237顶面,在本实施例中,电量显示灯1237a设置于电池包1237的顶面中心位置。电池包仓盖1216还形成有供用户观察位于电池包仓内的电量显示灯1237a的显示状态的可视部1216b。可视部1216b为采用至少部分透明的材料制成的透明部。在本实施例中,可视部1216b采用具有透光性的抛光的塑料,在一实施例中,可视部1216b也可采用其他透光性材料,例如玻璃等。可视部1216b安装至电池包仓盖1216,可以与电池包仓盖1216一体成型,此时整个电池包仓盖1216为透明部,也可以是独立结构,与电池包仓盖1216构成固定连接。本实施例中,可视部1216b为覆盖面积小于电池包仓盖1216且材质不同于电池包仓盖1216的塑料壳体。可视部1216b允许用户从电池仓外部观察到电量显示灯1237a,同时由于自身面积限制对可视范围进行了限制。
为保证机器平稳,电池包1237一般安装于靠近主机壳体121左右方向的中心位置,也即是说,电池包1237、电池包仓体1213以及电量显示灯1237a一般而言关于操作装置11的中分面对称,扳机114关于该中分面对称。
如图17所示,在不考虑光的折射的条件下,电量显示灯1237a被可视部1216b限制后在该中分面上形成有以电量显示灯1237a为顶点、以第一边界1216c和第二边界1216d为边的发光区域,第一边界1216c和第二边界1216d所形成的夹角大于等于90°且小于等于160°。将电量显示灯1237a的中心点看作电量显示灯1237a,可视部1216b包括在前后方向上更靠后的后边以及更靠前的前边,第一边界1216c即为连接电量显示灯1237a中心点,及可视部1216b的后边与中分面的交点的射线,第二边界1216d即为连接电量显示灯1237a中心点,及可视部1216b的前边与中分面的交点的射线。在本实施例中,第一边界1216c和第二边界1216d所形成的夹角为129°,也即使说,此时电量显示灯1237a的最大可视范围为 129°,当然,也可以为以上角度范围的其他值。另外,第一边界1216c与水平面的夹角大于等于5°且小于等于15°,也即是电量显示灯1237a的可视区相对水平面的倾斜角大于等于5°且小于等于15°,本实施例中,该角度为8°。由于用户在操作手推式电动工具100时,视线是从电量显示灯1237a的后上方斜向下,因此本实施例中电池包1237以及电量显示灯1237a从竖直方向向后倾斜的设计能够扩大用户观察电量显示灯1237a的可视范围。如图18至图20所示,底盘122(见图1)还包括设置为形成容纳工作组件125(见图1)的切割空间1221的围绕壁面1222,底盘122还形成有设置为将杂草排出的排草通道1223,排草通道1223包括与切割空间1221连通的连接端1223a和与连接端1223a相对的排草口1223b。手推式电动工具100还包括连接至排草口1223b、设置为收集被切断杂草的集草装置和设置为封闭排草通道1223以阻止杂草从排草口1223b排出的碎草盖1224。
手推式电动工具100具有集草模式和碎草模式;在手推式电动工具100处于集草模式时,排草口1223b敞开或者连接有集草装置;在手推式电动工具100处于碎草模式时,碎草盖1224连接至排草通道1223,封闭排草通道1223以阻止杂草从排草口1223b排出。如图18所示,碎草盖1224还包括伸入排草通道1223使得排草通道1223部分被填充的填充端1224a。填充端1224a包括设置为封闭连接端1223a的填充面,当碎草盖1224封闭排草通道1223时,填充面与围绕壁面1222在一个连续的曲面内延伸。
在本实施例中,如图18-图20所示,排草通道1223与围绕壁面1222的连接处形成有台阶结构1225,当碎草盖1224封闭排草通道1223时,填充端1224a与台阶结构1225之间形成有距离约为12毫米的间隙。当工作组件125以转动轴线101为轴转动进行切割时,被切割的碎草趋向集中在该间隙或附着在围绕壁面1222上。
碎草盖1224封闭排草通道1223时,碎草盖1224堵塞了底盘122原本的部分凹陷结构,填充面和围绕壁面1222构成了以转动轴线101(见图1)为中心的回转体结构1226,回转体结构1226关于转动轴线101基本对称。其中,回转体结构1226在忽略其内部填充端1224a与台阶结构1225之间形成的间隙、排草通道1223与围绕壁面1222的连接处形成的台阶结构1225以及填充端1224a自身的厚度等条件下是关于转动轴线101基本对称的。
如图21至图22所示,设置为驱动行走轮的自走电机的外转子上还安装有设置为防止杂草缠绕的防缠草罩1218。在本实施例中,防缠草罩1218为开有多道风口的壳体结构。防缠草罩1218由靠近自走电机的转子轴的输出端的第一罩部 1218a和靠近转子轴的输入端的第二罩部1218b构成,第一罩部1218a与第二罩部1218b通过卡扣1218c构成可拆卸连接。
如图1、图9、图10及图23所示,操作装置11包括操作组件,操作组件包括控制主电机转动的扳机114及控制自走电机启停的自走开关,自走开关包括第一开关112和第二开关113,以及调节自走电机转速的调速件,调节件具体为调速旋钮116。调速旋钮116、第一开关112、第二开关113以及调速旋钮116均安装至把手111的握持部1111,当然也可以只采用一个开关控制自走电机的启停。操作装置11还包括信号收集装置,在本实施例中信号收集装置为信号电路板1238,信号电路板1238安装至操作装置11围绕形成的容纳空间内部,具体而言,安装至把手111围绕形成的容纳空间内部。扳机114、第一开关112、第二开关113以及调速旋钮116均连接至信号电路板1238,扳机114、第一开关112、第二开关113以及调速旋钮116被用户操作时,均可产生电信号传递至信号电路板1238。在一实施例中,信号收集装置也可以是多个电路板或其他形式的电气装置,在此不作限制,本实施例中,将操作组件的发出的电信号传送至同一信号电路板1238能够简化手推式电动工具100内部电路结构。在其他实施例中,与信号电路板1238相连的操作组件不仅限于扳机114、第一开关112、第二开关113以及调速旋钮116,信号电路板1238还可以连接更多不同功能的操作件。
在一实施例中,信号收集装置可以包括分别对不同信号进行收集并处理的多个信号电路板,在其他实施例中,信号收集装置包括与扳机114相连的第一信号电路板,与第一开关112及第二开关113相连的第二信号电路板及与调速旋钮116相连的第三信号电路板。在一实施例中,第二信号电路板与第三信号电路板可以合成一个电路板。
在一实施例中,手推式电动工具100具有蓝牙控制功能,操作装置11还包括接收并处理蓝牙信号的蓝牙信号电路板,蓝牙信号电路板也容纳于操作装置11形成的容纳空间内部。
操作装置11还包括连接主机12和信号收集装置的总线,总线有由一条或者多条电线构成。在一实施例中,总线包括信号线1239,信号线1239与信号电路板1238、蓝牙信号电路板以及主机12相连并将信号从信号电路板1238或蓝牙信号电路板传输至主机12,其中,传输至主机12的上述多个电路板能够实现对手推式电动工具100多个功能的控制。其中,所述信号线为采用485通讯协议的信号线。
如图23所示,信号线1239包括设置为信号传输的线芯及包围线芯的保护管1239a,具体而言,保护管1239a为波纹管,保护管1239a的横截面为圆形,保护管1239a的横截面的直径大于等于5mm且小于等于15mm,在本实施例中,保护管1239a的横截面的直径为10mm。
在本实施例中,主机12还包括设置为驱动手推式电动工具100实现自行走的自走电机、设置为驱动工作组件125以转动轴线为轴转动的主电机。相应地,主机12还包括设置有控制主电机转动的控制电路的第一电路板1231、以及设置有驱动自走电机转动的驱动电路的第五电路板1236,第一电路板1231为控制电路板,第五电路板为驱动电路板。信号线1239与第一电路板1231和第五电路板1236相连,将操作组件发出的控制信号传送至第一电路板1231和第五电路板1236,从而控制自走电机以及主电机的启停,进而控制手推式电动工具100的自行走以及工作组件125的切割。其中,信号线1239不仅限于和第一电路板1231和第五电路板1236相连,还可以与其他电路板或者电路组件相连,在本实施例中,主机12还包括功能电路板,该功能电路板连接有照明装置124(见图4)及电池包1237(见图16)等功能组件,信号线1239还连接至功能电路板。所有与信号线1239相连的电路板均可以向信号线1239发送信号也可以接收其他电路板发送至信号线1239的信号,进而选择性地对接收的信号进行处理。
主机12包括主电机、行走电机、电池包1237及照明装置124等功能组件。对于具有蓝牙功能的手推式电动工具100,主机12还包括蓝牙装置,信号收集装置还包括第四信号电路板,即蓝牙信号电路板,蓝牙信号电路板安装至把手111围绕形成的容纳空间内部。蓝牙装置发出的信号传送至信号接收装置,经过蓝牙信号电路板的接收及处理,通过信号线1239传输至主机12,从而达到控制手推式电动工具100的目的,其中,蓝牙信号电路板可以收集来自主机12以及信号接收装置的信号,对主机12的多个参数进行设定或更新并传输至与功能组件相连的上述多个电路板从而控制主机12的多个功能组件,在此,需要说明的是,蓝牙装置只是向主机12传送信号并不直接控制手推式电动工具100。
在本实施例中,信号线1239从把手111的上方绕连接杆1112向下延伸,部分固定于连接杆1112,延伸至维修仓1211内部,并连接至容纳于维修仓1211内部的多个电路板。
另外,本实施例中的信号电路板1238和信号线1239结构也可以运用至其他电动机械,例如扫雪机或打草机等。
本实施例通过收集及处理多种信号的信号线对手推式电动工具进行控制,从而使得手推式电动工具的控制结构简化且控制方式更加方便、智能。
实施例二
如图24和图25所示,本实施例提供的手推式电动工具100’包括底盘10’、轮子20’、驱动电机30’和控制组件40’。
底盘10’作为手推式电动工具100’的主要支撑结构,将轮子20’、驱动电机30’和控制组件40’组装成一体。
轮子20’设置为支撑底盘10’,轮子20’相对于底盘10’转动从而使底盘10’在地面上移动。
驱动电机30’设置为驱动轮子20’转动,驱动电机30’安装至底盘10’。手推式电动工具100’还包括传动机构31’,传动机构31’连接驱动电机30’和轮子20’。
控制组件40’设置为对手推式电动工具100’进行控制。控制组件40’包括把手41’,用户通过推动把手41’能够推动手推式电动工具100’行进,把手41’连接至底盘10’。手推式电动工具100’还包括连杆50’,连杆50’连接把手41’和底盘10’。在一实施例中,把手41’和连杆50’也可以一体成型,即把手41’和连杆50’作为一个零件。在本实施例中,连杆50’连接把手41’和底盘10’,把手41’采用塑料材质,方便成型以及与其他零件的连接,而连杆50’采用金属材料,保证强度。
如图25和图26所示,手推式电动工具100’包括工作附件60’和工作马达70’,工作马达70’驱动工作附件60’执行手推式电动工具100’的功能,工作马达70’可以是以电力为动力的电机也可以是以燃料燃烧为动力的内燃机。底盘10’承载工作马达70’。在一实施例中,工作马达70’为电机。手推式电动工具100’还包括电池包80’,电池包80’为工作马达70’供电,电池包80’为驱动电机30’供电。在其他实施例中,也可以不设置工作马达,由驱动电机驱动工作附件。
在一实施例中,图24和图25中所示的手推式电动工具100’为手推式电动工具。手推式电动工具包括割草刀片。割草刀片作为工作附件60’实现割草功能。底盘10’设有切割腔11’。切割腔11’容纳割草刀片,割草刀片在切割腔11’内转动。
如图27至图31所示,控制组件40’包括把手41’、调速件42’、机电转换装置43’、第一启动扳机44a’、第二启动扳机44b’、第一启动开关45a’、第二启动 开关45b’、工作扳机46’、工作开关47’、安全钥匙48’及开关盒49’。
如图31所示,把手41’设有供用户左手握持的左握持部411a’及供右手握持的右握持部411b’。左握持部411a’和右握持部411b’关于一对称平面P1’对称使把手41’为关于对称平面P1’对称的结构。把手41’由塑料制成。把手41’包括第一把手壳体412’和第二把手壳体413’。第一把手壳体412’和第二把手壳体413’设有腔体。
调速件42’供用户操作以调节驱动电机30’的转速,调速件42’相对于把手41’运动调节驱动电机30’的转速,调速件42’设置于把手41’的中部,调速件42’关于对称平面P1’对称,调速件42’设置于左握持部411a’及右握持部411b’之间。用户左手握持左握持部411a’的同时,左手可以操作调速件42’。具体而言,用户可以通过左手的手掌握持左握持部411a’的同时利用左手的拇指操作调速件42’。同样,右手也可以采用与左手相同的方式同时完成握持右握持部411b’和操作调速件42’,用户操作方便。在一实施例中,调速件42’转动连接把手41’,调速件42’相对于把手41’绕中心轴线101’转动。中心轴线101’垂直于对称平面P1’,调速件42’构造成一个环形零件。调速件42’环绕把手41’,调速件42’设有沿中心轴线101’的周向排列的多个凹槽423’,凹槽423’沿中心轴线101’方向延伸,以方便用户转动调速件42’。如图33所示,调速件42’包括第一调速壳体421’和第二调速壳体422’。把手41’设置在第一调速壳体421’和第二调速壳体422’之间。
如图31-图33所示,机电转换装置43’将调速件42’相对于把手41’的位置变化转化成电信号。机电转换装置43’设置于把手41’内,即机电转换装置43’设置在把手41’形成的腔体内。
第一启动扳机44a’和第二启动扳机44b’以供用户操作启动驱动电机30’。用户可以用左手握持左握持部411a’时操作启动第一启动扳机44a’和调速件42’。同样用户可以用右手握持右握持部411b’时操作启动第二启动扳机44b’和调速件42’。即用户只需一只手即可实现对启动和调速两种功能的控制。且无论握持左握持部411a’或者握持右握持部411b’均能实现对启动和调速两种功能的控制。
如图30所示,第一启动开关45a’能被第一启动扳机44a’控制,以启动驱动电机30’。第一启动开关45a’与驱动电机30’构成电连接。第二启动开关45b’能被第二启动扳机44b’控制,以启动驱动电机30’。第二启动开关45b’与驱动 电机30’构成电连接。在一实施例中,也可以仅设置一个启动开关,两个启动扳机均设置为触发对应的启动开关,从而启动驱动电机。在一实施例中,也可以仅设置一个启动扳机。在一实施例中,两个启动扳机构成一个零件或构成同步运动,用户操作另一个启动扳机运动时,另一个启动扳机同步运动。在一实施例中,可以设置两个启动扳机及一个启动开关,且只有两个启动扳机都触发该启动开关时才能启动驱动电机。在一实施例中,设置两个启动扳机及两个启动开关,其中一个启动扳机设置为触发一个启动开关且只有两个启动开关均被触发时才能启动驱动电机,从而防止用户误操作启动电机,提高机器的安全性;或者,设置一个启动扳机,及一个启动开关或者两个启动开关,只有当启动扳机来回运动两次时驱动电机才被启动。另外,设置有两个启动扳机时,驱动电机被启动后只有当两个启动扳机均被释放时,驱动电机才会停止工作,当只有一个驱动扳机被释放时,驱动电机不停止工作。在其他实施例中,设置有两个启动扳机时,当其中一个启动扳机被释放时,驱动电机则停止工作;当只设置有一个启动扳机时,启动扳机被释放,驱动电机则停止工作。
如图25-图30所示,工作扳机46’设置为供用户操作启动工作马达70’。工作扳机46’包括供用户操作的第一活动部461a’及第二活动部461b’。第一活动部461a’及第二活动部461b’向把手41’靠近以启动工作马达70’。工作扳机46’相对于把手41’绕第一轴线102’转动,第一轴线102’平行于中心轴线101’。把手41’表面向凹陷形成有凹槽,工作扳机46’绕第一轴线102’转动靠近把手41’时能够嵌入该凹槽中,至少部分工作扳机46’与把手41’的凹陷面贴合,使得用户在握持把手41’的同时更加方便地控制工作扳机46’处于触发状态,保持工作马达70’处于工作状态。在一实施例中,把手41’的表面也可以不形成凹槽,工作扳机46’处于触发状态时,至少部分工作扳机46’与把手41’表面贴合。当需要停止工作马达70’时,只需要松开工作扳机46’,工作扳机46’则自动回复至非触发状态。用户在握持把手41’的同时操作第一启动扳机44a’、第二启动扳机44b’、工作扳机46’以及调速件42’,方便对机器100’的多个功能组件进行控制。
把手41’相对于底盘10’绕第二轴线103’转动,实现把手41’的折叠存储功能,第二轴线103’平行于中心轴线101’,轮子20’相对于底盘10’绕第三轴线104’转动,第三轴线104’平行于中心轴线101’。连杆50’包括第一连杆51’和第二连杆52’,第一连杆51’和第二连杆52’构成滑动连接,第一连杆51’相 对于第二连杆52’沿第一直线105’的方向滑动。第一直线105’垂直于中心轴线101’,手推式电动工具100’包括设置为安装或容纳电池包80’的电池盒81’。电池包80’沿第二直线106’的方向滑动连接至电池盒81’。第二直线106’垂直于中心轴线101’。工作附件60’的转动轴线平行或垂直于中心轴线101’。
工作开关47’能被工作扳机46’控制以启动工作马达70’。工作开关47’与工作马达70’构成电连接。
安全钥匙48’能够防止工作扳机46’被误触碰造成工作马达70’启动。用户需要按压安全钥匙48’,然后转动工作扳机46’,工作开关47’才能被触发以启动工作马达70’。
开关盒49’设置为容纳工作开关47’,工作扳机46’绕第一轴线102’转动连接至开关盒49’。开关盒49’包括开关盒盖491’和开关盒座492’,开关盒49’固定至把手41’,开关盒49’固定连杆50’,开关盒盖491’和开关盒座492’从两侧夹持把手41’和连杆50’。
手推式电动工具100’还包括电路板组件90’,电路板组件90’根据机电转换装置43’的电信号控制驱动电机30’的转速。电路板组件90’电连接述驱动电机30’和机电转换装置43’。在一实施例中,如图26所示,电路板组件90’设置于底盘10’。在其他实施例中,电路板组件90’也可以设置于开关盒49’或把手41’上。
图27中调速件42’处于第一位置,图28中调速件42’处于第二位置。调速件42’能相对于把手41’从第一位置转动至第二位置。调速件42’位于第一位置时,电路板组件90’控制驱动电机30’的转速大于调速件42’位于第二位置时电路板组件90’控制驱动电机30’的转速。其中,调速件42’在第一位置和第二位置时机电转换装置43’输出不同的电信号。电路板组件90’根据机电转换装置43’不同的电信号控制驱动电机30’以不同的速度转动。
如图31所示,左握持部411a’包括第一握持部416a’、第二握持部417a’和第一连接部418a’,右握持部411b’包括第三握持部416b’、第四握持部417b’和第二连接部418b’,第一握持部416a’沿直线延伸。其中,第一握持部416a’沿中心轴线101’延伸,第三握持部416b’沿中心轴线101’延伸。第二握持部417a’沿直线延伸,第四握持部417b’沿直线延伸。第二握持部417a’和第四握持部417b’的延伸方向与中心轴线101’倾斜相交。第一握持部416a’和第三握持部416b’邻近调速件42’。调速件42’位于第一握持部416a’和第三握持部 416b’之间。第一握持部416a’设置在调速件42’和第一连接部418a’之间。第三握持部416b’设置在调速件42’和第二连接部418b’之间。第一握持部416a’、第二握持部417a’和第一连接部418a’构成L型。第三握持部416b’、第四握持部417b’和第二连接部418b’构成L型。
在中心轴线101’延伸的方向上,调速件42’的最大尺寸大于第一握持部416a’的最大尺寸,调速件42’的最大尺寸大于第三握持部416b’的最大尺寸。第一握持部416a’的最大尺寸与第三握持部416b’的最大尺寸相同。方便用户在握持第一握持部416a’、第三握持部416b’的同时利用拇指对调速件42’进行操控。在中心轴线101’的径向方向上,第一握持部416a’的最大尺寸与第三握持部416b’的最大尺寸相同。第一握持部416a’和第三握持部416b’关于对称平面P1’对称。
第一启动扳机44a’设置于左握持部411a’,第二启动扳机44b’设置于右握持部411b’,第一启动扳机44a’及第二启动扳机44b’转动连接至把手41’。
启动扳机44a’包括凸出于把手41’的第一操作部441a’,启动扳机44b’包括凸出于把手41’的第二操作部441b’,第一操作部441a’能被用户在握持左握持部411a’时操作以启动驱动电机30’,第二操作部441b’能被用户在握持右握持部411b’时操作以启动驱动电机30’。其中,第一操作部441a’及第二操作部441b’向后凸出于把手41’。第一操作部441a’能被用户在握持左握持部411a’时操作向前运动以启动驱动电机30’,第二操作部441b’能被用户在握持右握持部411b’时操作向前运动以启动驱动电机30’。第一启动扳机44a’及第二4启动扳机4b’启动时驱动电机30’驱动手推式电动工具100’向前运动。用户握持左握持部411a’及右握持部411b’时,向前推动把手41’能够启动驱动电机30’。而当用户需要手动拉动手推式电动工具100’向后运动时,此时需要释放第一启动扳机44a’及第二启动扳机44b’以关闭驱动电机30’。用户可以放松把手41’的握持向后拉动把手41’,此时第一启动扳机44a’及第二启动扳机44b’不受到来自手的作用力,能够被释放。避免了第一启动扳机44a’及第二启动扳机44b’设置于把手41’前方时,向后拉动把手41’时第一启动扳机44a’及第二启动扳机44b’仍然受到来自手的作用力造成第一启动扳机44a’及第二启动扳机44b’处于开启状态,即驱动电机30’没有关闭,用户难以向后拉动机器。在一实施例中,第一启动扳机44a’及第二启动扳机44b’上任意一点到把手41’的最大距离小于等于20mm。方便用户在放松对左握持部411a’及右握持部411b’的握 持向后拉动把手41’时使第一启动扳机44a’及第二启动扳机44b’被释放。
如图29和图30所示,第一启动扳机44a’设置于第一握持部416a’和第一连接部418a’,启动扳机44b’设置于第一握持部416b’和连接部418b’。具体而言,第一操作部441a’的一端设置于第一握持部416a’;第一操作部441a’的另一端设置于连接部418a’。第二操作部441b’的第一端设置于第一握持部416b’,第二操作部441b’的第二端设置于第二连接部418b’。用户握持第一握持部416a’时可以用掌心控制第一启动扳机44a’,在用户握持第一握持部416a’的同时第一启动扳机44a’被触发,手推式电动工具100’处于自推进状态。操作方便快捷。同样,用户握持第三握持部416b’时可以用掌心控制第二启动扳机44b’。第一启动扳机44a’没有位于第二握持部417a’上,第二启动扳机44b’没有位于第四握持部417b’上。用户握持第二握持部417a’及第四握持部417b’时,第一启动扳机44a’及第二启动扳机44b’不会由于用户握持第二握持部417a’、及第四握持部417b’而造成启动并触发第一启动扳机44a’及第二启动扳机44b’,此时手推式电动工具100’处于非自推进状态。当用户不需要使用自推进功能时,可以握持第二握持部417a’、及第四握持部417b’进行操作。用户握持第二握持部417a’、及第四握持部417b’时可以用拇指控制第一启动扳机44a’及第二启动扳机44b’,使手推式电动工具100’进入自推进状态。
工作扳机46’包括分别供用户左手操作的第一活动部461a’及供用户右手操作的第二461b’。第一活动部461a’、461b’设置于把手41’的前方。用户操作第一活动部461a’、461b’向后运动以启动工作马达70’。左握持部411a’、第一活动部461a’和第一操作部441a’能够被用户单手握持。同样右握持部411b’、第二活动部461b’和第二操作部441b’能够被用户单手握持。第一活动部461a’、461b’沿直线延伸。工作扳机还包括连接第一活动部461a’及第二活动部461b’的中间部462’。中间部462’偏离第一活动部461a’及第二活动部461b’延伸的直线。把手41’形成有容纳槽,容纳槽能够容纳第一活动部461a’及第二活动部461b’。在工作扳机46’被用户触发时,第一活动部461a’及第二活动部461b’位于容纳槽内,便于用户握持左握持部411a’及右握持部411b’。
第一启动扳机44a’设置为触发启动开关45a’,启动扳机44b’设置为触发启动开关45b’。把手41’设有第一通过孔414a’及第二通过孔414b’。第一启动扳机44a’穿过第一通过孔414a’凸出于把手41’,第二启动扳机44b’穿过第二通过孔414b’凸出于把手41’。在一实施例中,第一把手壳体412’形成有第一 通过孔414a’及第二通过孔414b’。第一启动扳机44a’和第二启动扳机44b’关于对称平面P1’对称。第一启动开关45a’及第二启动开关45b’设置于把手41’内。第一启动开关45a’及第二启动开关45b’关于对称平面P1’对称。
机电转换装置43’设置于把手41’内。机电转换装置43’位于左握持部411a’及右握持部411b’之间。机电转换装置43’与调速件42’的位置相对应。机电转换装置43’的位置有利于合理利用把手41’内部的空间,机电转换装置43’与调速件42’位置相对应从而简化了结构。
在一实施例中,机电转换装置43’为滑动变阻器,电位器属于滑动变阻器,机电转换装置43’可以为电位器。
如图30-图34所示,滑动变阻器包括本体431’和相对于本体431’滑动的滑块432’,滑块432’相对于本体431’处于不同位置时滑动变阻器输出不同的电信号。调速件42’运动带动滑块432’相对于本体431’运动。更具体而言,调速件42’相对于把手41’转动带动滑块432’相对于本体431’滑动。滑块432’相对于本体431’沿平行于中心轴线101’的方向滑动。
如图30、图32至图34所示,调速件42’形成有倾斜于中心轴线101’的斜槽424’,斜槽424’与滑块432’配合。手推式电动工具100’还包括连接件433’,连接件433’固定至滑块432’,连接件433’穿过长条孔415’,并伸入至调速件42’的斜槽424’内从而实现斜槽424’与滑块432’的配合。
调速件42’相对于把手41’转动时,斜槽424’相对于滑块432’运动。斜槽424’导向滑块432’相对于本体431’沿平行于中心轴线101’的方向滑动。把手41’形成有长条孔415’;其中,长条孔415’沿平行于中心轴线101’的方向延伸。长条孔415’导向滑块432’相对于把手41’沿平行于中心轴线101’的方向滑动。第一通过孔414a’、第二通过孔414b’及长条孔415’位于把手41’的同一侧。长条孔415’、第一通过孔414a’及第二通过孔414b’设置于第一把手壳体412’上。
滑块432’沿中心轴线101’方向滑动相比滑块432’沿垂直于中心轴线101’的方向滑动,把手41’不需要在垂直于中心轴线101’方向上设置较长的开口,有利于增加把手41’的强度,调速件42’转动连接把手41’。相比调速件42’滑动连接至把手的结构,调速件42’转动连接把手41’,便于用户双手中任意一只手进行操作且两只手的操作方式相同使用方便。
在一实施例中,机电转换装置为传感器,传感器检测调速件142’相对于把 手141’的位置。机电转换装置是霍尔传感器143’,霍尔传感器143’检测调速件142’相对于把手141’的位置如图35所示。霍尔传感器143’包括霍尔元件1431’和磁性件1432’,磁性件1432’固定调速件142’,霍尔元件1431’固定至把手141’。当调速件142’相对于把手141’运动时,磁性件1432’相对于霍尔元件1431’发生运动。磁性件1432’相对于霍尔元件1431’位于不同位置时,霍尔传感器143’输出不同的电信号。调速件142’相对于把手141’转动带动磁性件1432’相对于霍尔元件1431’转动。
在一实施例中,如图36所示,机电转换装置是霍尔传感器234’,霍尔传感器234’检测调速件242’相对于把手241’的位置。霍尔传感器包括霍尔元件2431’和两个磁性件2432’,两个磁性件2432’固定至调速件242’。在一实施例中,两个磁性件2432’的磁性方向相反,霍尔元件2431’固定至把手241’。其中,霍尔元件2431’伸出把手241’之外,位于两个磁性件2432’之间。当调速件242’相对于把手241’运动时,磁性件2432’相对于霍尔元件2431’发生运动。磁性件2432’相对于霍尔元件2431’位于不同位置时,霍尔传感器234’输出不同的电信号。调速件242’相对于把手241’转动带动磁性件2432’相对于霍尔元件2431’转动。
在一实施例中,机电转换装置可以是触摸屏,用户手指在触摸屏上滑动输出不同的电信号从而控制驱动电机的转速。
在一实施例中,机电转换装置可以是滑动条。用户手指在滑动条上从后向前滑动一次使驱动电机的转速提高一个档位,驱动电机的转速增高;用户手指在滑动条上从前向后滑动一次使驱动电机的转速下降一个档位,驱动电机的转速降低。
在一实施例中,如图37所示,手推式电动工具200’为扫雪机。扫雪机包括工作马达210’、扫雪桨220’、抛雪件230’和底盘240’。扫雪桨220’作为工作附件实现扫雪功能。抛雪件230’设置为导向雪的运动。工作马达210’驱动扫雪机转动带动雪从抛雪件230’抛出。底盘240’形成有腔道250’。扫雪桨220’在腔道250’内转动。图37所示的扫雪机与图24所示的手推式电动工具相比,可以采用相同的控制自推进的方式以及相同的实现自推进的结构。其中,图37所示的扫雪机的控制组件260’与图24所示的手推式电动工具的控制组件40’相同。

Claims (41)

  1. 一种手推式电动工具,包括:
    主机;
    操作装置,连接至所述主机以供用户操作所述手推式电动工具;
    所述主机包括:
    工作组件,实现所述手推式电动工具的功能;
    主电机,用于驱动所述工作组件以转动轴线为轴转动;
    所述操作装置包括:操作组件,供用户操作并发出信号;
    所述操作装置还包括:
    信号收集装置,收集并处理所述操作组件发出的信号;
    总线,连接所述主机和所述信号收集装置;
    所述总线包括:
    信号线,分别与所述信号收集装置以及所述主机相连使得所述信号收集装置与所述主机实现通信连接。
  2. 根据权利要求1所述的手推式电动工具,其中,所述操作组件还包括设置为控制所述主电机转动的扳机,所述信号收集装置包括第一信号电路板,所述第一信号电路板设置为收集并处理所述扳机发出的信号;
    所述主机还包括设置有控制所述主电机转动的控制电路的控制电路板;
    所述信号线连接所述第一信号电路板和所述控制电路板。
  3. 根据权利要求1所述的手推式电动工具,其中,所述主机还包括用于驱动所述手推式电动工具实现自行走的自走电机;
    所述操作组件还包括用于控制所述自走电机转动的自走开关;
    所述信号收集装置包括第二信号电路板,所述第二信号电路板收集并处理所述自走开关发出的信号;
    所述主机还包括设置有驱动所述自走电机转动的驱动电路的驱动电路板;
    所述信号线连接所述第二信号电路板和所述驱动电路板。
  4. 根据权利要求3所述的手推式电动工具,其中,所述操作组件还包括设置为调节所述自走电机转动速度的调速件,所述第二信号电路板设置为收集并处理所述调速件发出的信号。
  5. 根据权利要求1所述的手推式电动工具,所述主机还包括用于驱动所述手推式电动工具实现自行走的自走电机;所述操作组件还包括用于控制所述主电机转动的扳机以及用于控制所述自走电机转动的自走开关;
    所述信号收集装置包括第三信号电路板,所述第三信号电路板收集并处理所述扳机以及所述自走开关发出的信号;
    所述主机还包括设置有控制所述主电机转动的控制电路的控制电路板以及驱动所述自走电机转动的驱动电路的驱动电路板;
    所述信号线连接至所述第三信号电路板、所述驱动电路板以及所述控制电路板。
  6. 根据权利要求5所述的手推式电动工具,其特征在于:
    所述操作组件还包括用于调节所述自走电机转动速度的调速件;
    所述第三信号电路板收集并处理所述调速件发出的信号。
  7. 根据权利要求3至6任意一项所述的手推式电动工具,其特征在于:
    所述自走开关包括第一开关和第二开关,在所述第一开关和所述第二开关均被触发时所述自走电机转动。
  8. 根据权利要求1所述的手推式电动工具,其特征在于:
    所述主机包括蓝牙装置;
    所述信号收集装置包括第四信号电路板,所述第四信号电路板收集并处理所述蓝牙装置发出或接收到的信号,所述信号线连接所述第四信号电路板和所述主机。
  9. 根据权利要求1所述的手推式电动工具,其中,所述主机还包括:
    设置为照明的照明装置;
    设置为为提供动力的电池包;
    设置为调节所述操作装置的调节组件;及
    与所述照明装置、所述电池包及所述调节组件相连的功能电路板;
    所述信号线连接至所述功能电路板。
  10. 根据权利要求1或9任意一项所述的手推式电动工具,其中,所述信号线为采用485通讯协议的信号线。
  11. 根据权利要求1所述的手推式电动工具,其中,所述主机还包括:
    第一电路板,与所述主电机电性连接;
    主机壳体,围绕形成有一个维修仓,所述维修仓形成有开口;
    维修盖,封闭至少部分所述开口;
    所述维修仓与所述维修盖形成有一个容纳腔;
    其中,所述第一电路板设置在所述容纳腔内;在所述维修盖被打开时,所 述开口朝向外界至少部分敞开。
  12. 根据权利要求11所述的手推式电动工具,其特征在于:
    所述第一电路板上设置有用于驱动所述主电机的驱动电路;
    所述手推式电动工具还包括:
    第二电路板,设置有用于控制所述驱动电路的控制电路;
    其中,所述第二电路板设置在所述容纳腔内。
  13. 根据权利要求11所述的手推式电动工具,其中,所述第一电路板上设置有驱动所述主电机的驱动电路和控制所述驱动电路的控制电路。
  14. 根据权利要求11所述的手推式电动工具,还包括:第三电路板,及与所述第三电路板连接的保险丝,所述第三电路板设置在所述容纳腔内。
  15. 根据权利要求14所述的手推式电动工具,其中,所述维修仓的仓壁还设有进风口及出风口,所述进风口设置为使散热气流进入所述容纳腔,所述出风口设置为使所述散热气流流出所述容纳腔;
    其中,所述进风口和所述出风口分别与所述容纳腔连通,使从所述进风口进入所述容纳腔并从所述出风口流出的所述散热气流流经所述第三电路板。
  16. 根据权利要求11所述的手推式电动工具,其中,所述维修盖与所述主机壳体可拆卸连接,或者所述维修盖通过紧固件与所述主机壳体固定连接。
  17. 根据权利要求11所述的手推式电动工具,还包括:电池包,所述电池包设置为给所述主电机提供电能,所述主机壳体还形成有电池包仓,所述电池包可以至少部分设置在所述电池包仓内;
    所述维修仓设置在所述电池包仓和所述操作装置之间。
  18. 根据权利要求1所述的手推式电动工具,其特征在于:
    所述主机包括:
    主机壳体;
    所述主机壳体包括:
    后端,与所述操作装置连接;及
    前端,位于所述主机壳体的端部且与所述后端相对;
    所述主机壳体还形成或者连接有:
    第一抬起部,设置为供握持以移动所述主机;及
    第二抬起部,设置为供握持以移动所述主机;
    沿所述手推式电动工具的前进方向上,所述第一抬起部相对于所述第二抬 起部位于所述主机壳体的前侧;
    在所述手推式电动工具沿地面行走至所述前端与一个竖直壁面接触时,所述第一抬起部与所述竖直壁面之间的水平距离大于0。
  19. 根据权利要求18所述的手推式电动工具,其中,所述操作装置与所述主机转动连接。
  20. 根据权利要求18所述的手推式电动工具,其中,所述工作组件设置为在转动时具有一个工作平面;
    所述第一抬起部和所述第二抬起部均位于所述工作平面的一侧。
  21. 根据权利要求18所述的手推式电动工具,其中,所述第一抬起部和所述第二抬起部之间的水平距离大于等于564毫米且小于等于628毫米。
  22. 根据权利要求21所述的手推式电动工具,其中,所述第一抬起部和所述第二抬起部之间的水平距离大于等于580毫米且小于等于610毫米。
  23. 根据权利要求18所述的手推式电动工具,其中,所述工作组件设置为在在转动时具有一个工作平面,所述第一抬起部和所述第二抬起部在所述工作平面内的正投影均位于所述主机壳体在所述工作平面内的正投影内。
  24. 根据权利要求18所述的手推式电动工具,其中,所述工作组件设置为在转动时具有一个转动半径,所述第一抬起部与所述工作组件的转动轴线之间的水平距离小于所述转动半径。
  25. 根据权利要求1所述的手推式电动工具,还包括:
    照明装置,包括设置为照明的照明组件;
    照明指示组件,设置为指示所述照明组件是否处于发光状态;及
    照明开关,设置为在被触发时控制所述照明组件发光;
    其中,所述照明指示组件安装至所述照明开关。
  26. 根据权利要求25所述的手推式电动工具,其中,
    所述照明组件朝向所述手推式电动工具前进方向上的前侧发光。
  27. 根据权利要求25所述的手推式电动工具,其中,所述照明开关包括设置为安装所述照明指示组件的灯座。
  28. 根据权利要求25所述的手推式电动工具,其中,所述照明装置还包括:照明电路板,所述照明电路板设置为控制所述照明组件和照明指示组件;
    所述主机壳体弯折形成有设置为容纳所述照明电路板的维修仓,所述维修仓形成有开口,所述主机还包括设置为封闭至少部分所述开口的维修盖。
  29. 根据权利要求28所述的手推式电动工具,其中,所述照明组件安装至所述照明电路板,所述维修盖还形成有设置为供所述照明指示组件至少部分露出的通孔。
  30. 根据权利要求25所述的手推式电动工具,其中,在沿所述手推式电动工具的前进方向上,所述照明指示组件位于所述照明组件和所述操作装置之间。
  31. 根据权利要求25所述的手推式电动工具,还包括电池包,所述主机壳体还形成有:
    电池包仓,用于安装电池包;
    在沿所述手推式电动工具的前进方向上,所述照明指示组件位于所述操作装置和所述电池包仓之间。
  32. 根据权利要求1所述的手推式电动工具,还包括:
    电池包,所述电池包设置为给所述主电机供电;及
    主机壳体,包括用于围绕形成有凹槽的主体部;所述凹槽形成有供所述电池包插入的插入口;
    所述主机壳体还包括与所述主体部连接并能封闭所述插入口的电池包仓盖;在所述电池包仓盖封闭所述插入口时,所述电池包仓盖和所述凹槽共同围绕形成用于容纳所述电池包的电池包仓;
    所述电池包仓内形成有用于导向所述电池包沿一个插装方向结合至所述主机壳体的结合部;所述电池包还形成有用于显示电池包电量的电量显示灯;所述电池包仓盖还形成有供用户观察位于所述电池包仓内的电量显示灯的显示状态的可视部;在所述手推式电动工具位于与水平面平行的地面上时,所述电池包的所述插装方向与所述水平面的夹角大于等于30°且小于等于80°。
  33. 根据权利要求32所述的手推式电动工具,其中,所述电量显示灯设置为在所述电池包插装至所述结合部时,沿所述插装方向发光。
  34. 根据权利要求32所述的手推式电动工具,其中,所述可视部为采用至少部分透明的材料制成的透明部。
  35. 根据权利要求34所述的手推式电动工具,其中,所述透明部至少部分在一个与所述插装方向垂直的平面内延展。
  36. 根据权利要求32所述的手推式电动工具,其中,所述电池包的插装方向设置为在所述手推式电动工具位于与水平面平行的地面上时,与所述水平面的夹角大于等于40°且小于等于70°。
  37. 根据权利要求36所述的手推式电动工具,其中,所述电池包的插装方向设置为在所述手推式电动工具位于与水平面平行的地面上时,与所述水平面的夹角大于等于50°且小于等于60°。
  38. 根据权利要求32所述的手推式电动工具,其中,所述操作装置设有一个中分面,所述电量显示灯设置为在所述手推式电动工具设置于与水平面平行的底面上且所述电池包仓盖封闭所述插入口时,被所述可视部限制后在所述中分面上形成有以所述电量显示灯为顶点、以第一边界和第二边界为边的发光区域,所述第一边界和所述第二边界所形成的夹角大于等于90°且小于等于160°。
  39. 根据权利要求32所述的手推式电动工具,其中,所述操作装置包括设置为启动所述主电机的扳机,所述扳机关于一个中分面对称;
    所述电量显示灯设置为在所述手推式电动工具设置于与水平面平行的底面上且所述电池包仓盖封闭所述插入口时,被所述可视部限制后在所述中分面上形成有以所述电量显示灯为顶点、以第一边界和第二边界为边的发光区域,所述第一边界相对所述第二边界更靠近所述操作装置;所述第一边界设置为在所述手推式电动工具设置于与水平面平行的底面上时,与所述水平面之间形成的夹角大于等于5°且小于等于15°。
  40. 根据权利要求1至39任意一项所述的手推式电动工具,其中,所述手推式电动工具为手推式割草机。
  41. 根据权利要求1至39任意一项所述的手推式电动工具,其中,所述手推式电动工具为扫雪机。
PCT/CN2019/093796 2018-06-29 2019-06-28 手推式电动工具 WO2020001637A1 (zh)

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