WO2022089424A1 - 轮式推行工具 - Google Patents

轮式推行工具 Download PDF

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Publication number
WO2022089424A1
WO2022089424A1 PCT/CN2021/126413 CN2021126413W WO2022089424A1 WO 2022089424 A1 WO2022089424 A1 WO 2022089424A1 CN 2021126413 W CN2021126413 W CN 2021126413W WO 2022089424 A1 WO2022089424 A1 WO 2022089424A1
Authority
WO
WIPO (PCT)
Prior art keywords
transmission
unlocking
push rod
push
main body
Prior art date
Application number
PCT/CN2021/126413
Other languages
English (en)
French (fr)
Inventor
闫明星
白兵
张海军
Original Assignee
苏州宝时得电动工具有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 苏州宝时得电动工具有限公司 filed Critical 苏州宝时得电动工具有限公司
Publication of WO2022089424A1 publication Critical patent/WO2022089424A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B51/00—Undercarriages specially adapted for mounting-on various kinds of agricultural tools or apparatus
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C7/00—Sowing
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D67/00—Undercarriages or frames specially adapted for harvesters or mowers; Mechanisms for adjusting the frame; Platforms
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D69/00—Driving mechanisms or parts thereof for harvesters or mowers
    • A01D69/06—Gearings
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C13/00—Details; Accessories
    • A45C13/26—Special adaptations of handles
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C13/00—Details; Accessories
    • A45C13/26—Special adaptations of handles
    • A45C13/262—Special adaptations of handles for wheeled luggage
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C5/00—Rigid or semi-rigid luggage
    • A45C5/04—Trunks; Travelling baskets
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C5/00—Rigid or semi-rigid luggage
    • A45C5/14—Rigid or semi-rigid luggage with built-in rolling means
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/24—Floor-sweeping machines, motor-driven
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4072—Arrangement of castors or wheels
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4075—Handles; levers
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/005—Mobile installations, particularly for upkeeping in situ road or railway furniture, for instance road barricades, traffic signs; Mobile installations particularly for upkeeping tunnel walls

Definitions

  • the invention relates to the technical field of push rods, in particular to a wheeled push tool.
  • Wheeled push tools are usually equipped with push rods to facilitate users to hold and push and pull equipment to walk, such as lawn pushers, hand-push planters, hand-push sweepers, hand-push luggage, etc.
  • the push rod of the wheeled push tool is usually designed to be operated by the user to shrink and fold.
  • the switch needs to be triggered at different positions, especially during the folding process, the user needs to bend over to trigger the switch, which makes the shrinking and folding process of the push rod extremely inconvenient and seriously affects the use function of the product.
  • a wheel-type pushing tool the wheel-type pushing tool includes: a main body, on which a wheel for supporting the main body on a working surface is arranged; a push rod assembly, including at least one push rod, the push rod It comprises a lower rod part and an upper rod part telescopically connected with the lower rod part, the lower rod part is rotatably connected with the main body;
  • the locking mechanism includes a transmission assembly and a single unlocking piece, and the transmission assembly includes a first a locking piece and a second locking piece, the first locking piece is used for locking the upper rod part and the lower rod part, the second locking piece is used for locking the main body and the lower rod part, once Operating at least one of the unlocking pieces to drive the first locking piece and the second locking piece to unlock respectively, so that the upper rod portion can perform telescopic movement relative to the lower rod portion, and the lower rod The portion is rotatable relative to the body.
  • the installation position of the unlocking member and the connection between the lower rod portion and the main body are spaced apart by 40cm-80cm in the longitudinal direction of the push rod assembly.
  • the lower rod The part rotates relative to the main body.
  • the push rod assembly includes a first push rod and a second push rod, the first push rod and the second push rod are respectively disposed on opposite sides of the main body, and the wheeled push tool is located in the main body.
  • a beam structure is also arranged between the first push rod and the second push rod, and the beam structure is respectively connected with the first push rod and the second push rod, and the locking mechanism includes a single An unlocking piece is installed on the beam structure.
  • the beam structure when the lower rod part is sleeved on the upper rod part, the beam structure is installed on the lower rod part; when the upper rod part is sleeved on the lower rod part, the beam structure is installed on the lower rod part.
  • the structure is mounted on the upper rod portion.
  • the transmission assembly further includes a first transmission member disposed between the first locking member and the unlocking member, and a second transmission member disposed between the second locking member and the unlocking member , the first transmission member is also provided with a first unlocking portion, the second transmission member is also provided with a second unlocking portion, and the unlocking member moves against the movement of the first unlocking portion and the second unlocking portion .
  • the transmission assembly further includes a third transmission member that is drivingly matched with the first transmission member, one end of the third transmission member is connected to the first locking member, and the other end of the third transmission member is connected to the first locking member. Abutting on the first transmission member, the unlocking member can drive the first transmission member to move and drive the third transmission member to move when the unlocking member is active, and the third transmission member pushes the first locking member away from the the first positioning hole on the push rod assembly.
  • the transmission assembly further includes a fourth transmission member and a pull rope connected between the second transmission member and the fourth transmission member, and the fourth transmission member is in driving cooperation with the second locking member, so When the unlocking member is active, it can drive the second transmission member to move and pull the pull rope, the pull rope moves to drive the fourth transmission member to move, and the fourth transmission member drives the second locking member to leave the second positioning hole on the main body.
  • the transmission assembly is at least partially disposed in the beam structure, the transmission assembly further includes a first transmission part and a second transmission part, and the unlocking member cooperates with the first transmission part to drive the first transmission part.
  • a locking member is unlocked, and the unlocking member cooperates with the second transmission part to drive the second locking member to unlock.
  • a support plate is also provided in the beam structure, and the first transmission part and the second transmission part are respectively located on opposite sides of the support plate.
  • a motor is provided on the main body, and the wheeled push tool further includes a safety component, and the safety component is electrically connected to the motor, when the first locking member and/or the second locking member When in an unlocked state, the safety component makes the motor in a state of prohibiting activation; when the first locking member and the second locking member are in a locked state, the safety assembly makes the motor in a state of allowing activation.
  • the safety assembly is in driving cooperation with the unlocking member, and is in a connected or disconnected state relative to the movement of the unlocking member.
  • a wheel-type pushing tool the wheel-type pushing tool includes: a main body, on which a wheel for supporting the main body on a working surface is arranged; a push rod assembly, including at least one push rod, the push rod Connected with the main body, the push rod includes a lower rod part and an upper rod part telescopically connected with the lower rod part, and the lower rod part is rotatably connected with the main body;
  • the locking mechanism includes a transmission assembly, A first unlocking piece and a second unlocking piece, the transmission assembly includes a first locking piece and a second locking piece, the first locking piece is used to lock the upper push rod and the lower push rod, the second The locking piece is used to lock the main body and the lower push rod, the movement of the first unlocking piece drives the first locking part to unlock, and the movement of the second unlocking piece drives the second locking part to unlock, so
  • the installation position of the second unlocking member and the connection between the lower rod portion and the main body are spaced apart by 40cm-80cm in the longitudinal direction of
  • the push rod assembly includes a first push rod and a second push rod, the first push rod and the second push rod are respectively disposed on opposite sides of the main body, and the wheeled push tool is located in the main body.
  • a beam structure is also arranged between the first push rod and the second push rod, the beam structure is respectively connected with the first push rod and the second push rod, and the second unlocking member is installed on the Beam structure.
  • first unlocking member is installed on the beam structure, and the first unlocking member and the second unlocking member are arranged side by side along the length direction of the beam structure.
  • the transmission assembly further includes a third transmission member that is drivingly matched with the first transmission member, one end of the third transmission member is connected to the first locking member, and the other end of the third transmission member is connected to the first locking member. Abutting on the first transmission member, the first unlocking member can drive the first transmission member to move and drive the third transmission member to move when the first unlocking member is active, and the third transmission member pushes the first locking member away from the first positioning hole on the push rod assembly.
  • the beam structure when the lower rod part is sleeved on the upper rod part, the beam structure is installed on the lower rod part; when the upper rod part is sleeved on the lower rod part, the beam structure is installed on the lower rod part.
  • the structure is mounted on the upper rod portion.
  • the transmission assembly further includes a first transmission member disposed between the first locking member and the first unlocking member, and a third transmission member in driving cooperation with the first transmission member, the first transmission member One end of the three transmission members is connected with the first locking member, the other end of the third transmission member is in contact with the first transmission member, and the first unlocking member can drive the first transmission member to move when it is active
  • the third transmission member is driven to move, and the third transmission member pushes the first locking member away from the first positioning hole on the push rod assembly.
  • the transmission assembly further includes a fourth transmission member, a second transmission member disposed between the second locking member and the second unlocking member, and a second transmission member connected between the second transmission member and the fourth transmission member.
  • a pull rope between transmission parts, the fourth transmission part is in driving cooperation with the second locking part, the second unlocking part can drive the second transmission part to move and pull the pull rope when the second unlocking part is active, and the pull rope is pulled.
  • the pulling rope moves to drive the fourth transmission member to move, and the fourth transmission member drives the second locking member to leave the second positioning hole on the main body.
  • the wheeled push tool of the present invention realizes the telescopic and folding control of the push rod assembly through a single unlocking member, which is convenient for user operation and improves user experience, and the single unlocking member is arranged in the middle position of the push rod assembly that is easily accessible by the user, which is further convenient for the user.
  • the push rod assembly is folded and retracted.
  • FIG. 1 is a schematic structural diagram of a wheeled push tool described in one embodiment
  • FIG. 2 is a schematic structural diagram of a push rod assembly described in one embodiment
  • FIG. 3 is a schematic diagram of the matching structure of the unlocking member and the first transmission part described in one embodiment
  • FIG. 4 is a schematic diagram of the matching structure of the unlocking member and the second transmission part described in one embodiment
  • FIG. 5 is a schematic structural diagram of a wheeled push tool described in another embodiment
  • FIG. 6 is a schematic structural diagram of a push rod assembly described in another embodiment
  • FIG. 7 is a schematic diagram of the matching structure between the unlocking member and the first transmission part described in another embodiment
  • FIG. 8 is a schematic diagram of the matching structure of the unlocking member and the second transmission part described in another embodiment
  • FIG. 9 is a schematic view of the structure of the safety component in the beam structure according to one embodiment.
  • the present invention provides a wheeled push tool, which can be a hand-push lawn mower, a hand-push planter, a hand-push sweeper, a hand-push luggage, etc. Please refer to Figures 1 to 1 4.
  • the wheeled pushing tool is a hand-push lawn mower as an example.
  • the walk-behind lawn mower includes: a main body 300 , a push rod assembly 200 and a locking mechanism 100 .
  • the main body 300 is provided with wheels 320 for supporting the main body 300 on the work surface.
  • the push rod assembly 200 includes at least one push rod, for example: a first push rod 210 , the first push rod 210 includes a lower rod part 211 and an upper rod part 212 telescopically connected to the lower rod part 211 , and the upper rod part 212 is opposite to the lower rod part 211 .
  • the rod portion 211 moves between the first position and the second position, the lower rod portion 211 is rotatably connected to the main body 300 , the push rod assembly 200 can be extended and retracted by pushing the upper rod portion 212 , and the push rod assembly 200 can be pushed by rotating the lower rod portion 211 .
  • Folding of the rod on the one hand, the user can adjust the height of the push rod assembly 200 according to the needs during the mowing operation; on the other hand, after the mowing operation is completed, the occupied space of the push mower can be reduced .
  • the lower rod portion 211 is sleeved on the upper rod portion 212 , that is, the lower rod portion 211 is a thick rod.
  • the upper rod portion 212 moves to at least partially receive into the lower rod part 211; of course, in other embodiments, the upper rod part 212 can also be sleeved on the lower rod part 211, that is, the upper rod part 212 is a thick rod, when the push rod assembly 200 is telescopically operated, The upper stem portion 212 moves to at least partially accommodate the lower stem portion 211 .
  • the above-mentioned first position is specifically the position of the upper rod portion 212 when the push rod assembly 200 is in a limit stretching state; correspondingly, the above-mentioned second position is specifically the push rod assembly When the 200 is in the ultimate retracted state, the position of the upper rod portion 212; of course, in other embodiments, the first position and the second position may also be any position between the ultimate stretched state and the ultimate retracted state of the push rod assembly 200. The position of the upper rod portion 212 in the two states.
  • the locking mechanism 100 includes a transmission assembly 130 and an unlocking member 140 .
  • the transmission assembly 130 includes a first locking member 133 and a second locking member 134 , wherein the first locking member 133 acts to lock the upper rod portion 212 and the lower rod portion 211 , and the second locking member 134 acts to lock the main body 300 and the lower rod portion. 211.
  • only one unlocking member 140 is provided. It should be noted that in other embodiments, the unlocking member 140 may also be cut in the middle to form two, but the user only needs to With one operation, the two unlocking members 140 can be driven to trigger unlocking.
  • the push rod assembly 200 needs to be rotated to adjust the angle between the lower rod portion 211 and the main body 300 to adjust the height of the push rod assembly 200; It is necessary to stretch the upper rod portion 212 and the lower rod portion 211 to adjust the length of the push rod assembly 200; when the height and length of the push rod assembly 200 are adjusted to meet the user's needs, the first locking member 133 and the second locking member 134 are used. , lock the upper rod part 212 and the lower rod part 211, the main body 300 and the lower rod part 211 respectively, so that the push rod assembly 200 and the main body 300 are in a relatively fixed state. .
  • the push rod assembly 200 When the push rod assembly 200 needs to be retracted and folded, the user only needs to operate the above-mentioned unlocking member 140 once to drive the first locking member 133 and the second locking member 134 to extend, retract and rotate the push rod assembly 200 , respectively.
  • the function is unlocked, and the user can simultaneously expand and fold the push rod assembly 200, which greatly facilitates the shrinking and folding operations of the push rod, effectively improves the convenience of use of the push lawn mower, and greatly improves the user experience of the product.
  • the lower rod portion 211 can rotate relative to the main body 300 at the same time.
  • the folding operation of the push rod assembly 200 can be simultaneously performed to improve user experience.
  • the lower rod portion 211 rotates relative to the main body 300, so that the user only needs to realize the telescopic and folding unlocking of the push rod assembly 200 through the unlocking member 140, and then the telescopic and folding operations of the push rod assembly 200 can be synchronized according to the user's needs It is not necessary to complete the telescopic operation of the push rod assembly 200 first, and then perform the folding operation of the push rod assembly 200 separately, thereby improving the user's operating experience.
  • the displacement of the upper rod portion 212 relative to the lower rod portion 211 may also be less than or equal to two-thirds, three-quarters, or four-fifths of the above-mentioned maximum movement stroke, not It is limited to one half of the above, as long as it is satisfied that the user does not need to complete the telescopic operation of the push rod assembly 200 separately before performing the folding operation of the push rod assembly 200 .
  • the push rod assembly 200 includes a first push rod 210 and a second push rod 220 , and the first push rod 210 and the second push rod 220 are respectively connected to the main body 300 .
  • the hand-push lawn mower further includes a beam structure 400 .
  • the beam structure 400 is disposed between the first push rod 210 and the second push rod 220 and is connected to the first push rod 210 and the second push rod 220 respectively.
  • the unlocking member 140 is installed on the beam structure 400, and the beam structure 400 is arranged above the main body 300, and is spaced 40cm-80cm from the connection between the lower rod portion 211 and the main body 300. Therefore, in the first embodiment of the present invention, by The unlocking triggers of retraction and folding are integrated into the beam structure 400, and the beam structure 400 and the main body 300 are separated by a certain distance to make it easier for the user to touch, so that the user does not need to bend down to touch the folding switch on the side of the main body 300, then the user can The retracting and folding unlocking of the push rod assembly 200 is easily completed, which further facilitates the retracting and folding operations of the push rod.
  • the unlocking member 140 is installed at the middle position of the beam structure 400 in the longitudinal direction, so that the position of the unlocking member 140 is easier to be noticed by the user and easier to be operated by the user, thereby further Improve user experience.
  • the first push rod 210 and the second push rod 220 are respectively disposed on two sides of the main body 300 , and the structure of the second push rod 220 is basically the same as that of the first push rod 210 , are basically symmetrically connected on both sides of the main body, so that when the user performs the telescopic and folding operations of the push rod assembly 200, the second push rod 220 can expand and fold synchronously with the first push rod 210, which is convenient for the user to operate.
  • the first push rod 210 and the second push rod 220 can also be arranged side by side in the middle area of the main body, but are not limited to being disposed on both sides of the main body.
  • the push rod assembly 200 includes two push rods. In other embodiments, the push rod assembly may also include only one push rod. In this case, it is used to realize the push rod.
  • the unlocking member 140 for one-key control of the telescoping and folding of the assembly 200 is installed on the operation panel 500 of the push lawn mower, and the connection between the operation panel 500 and the lower rod portion 211 and the main body 300 is far apart, so that the user can easily touch it. to the unlocking member 140 to realize the retraction and folding control of the push rod assembly 200 .
  • the lower rod portion 211 is sleeved on the upper rod portion 212, and the beam structure 400 is installed on the lower rod portion 211, and the installation position of the beam structure 400 is close to the uppermost end of the lower rod portion 211,
  • the beam structure 400 is installed on the thicker lower rod portion 211, so that the beam structure 400 is more stably fixed on the push rod assembly 200, and the strength of the installation structure of the beam structure 400 is also improved;
  • the installation position of the beam structure 400 is closer to the uppermost end of the lower rod portion 211 , the locking member 140 is in a position more easily touched by the user, thereby further facilitating the user to perform telescopic and folding operations of the push rod.
  • the beam structure 400 is installed at the middle position of the push rod assembly 200 in the length direction, so that on the basis of ensuring that the user can easily access the locking member 140, the upper rod portion can also be 212 and the lower rod portion 211 can be designed to have substantially the same length, so that when the push rod assembly 200 is extended and retracted, the upper push rod 212 can be completely accommodated in the lower rod portion 211, and when the push rod assembly 200 is folded, The lower push rod 211 is also not too long to be accommodated in the main body 300 . It should also be noted that, in other embodiments, if the upper rod portion 212 is sleeved on the lower rod portion 211, the beam structure 400 is installed on the upper rod portion 212.
  • the beam structure 400 is installed on a relatively thick On the upper rod portion 211 of the upper rod, the beam structure 400 is more stably fixed on the push rod assembly 200, and the strength of the installation structure of the beam structure 400 is also improved; , the telescopic operation of the push rod assembly 200 can be completed with the same hand, thereby improving the user experience.
  • the transmission assembly 130 is divided into a first transmission part and a second transmission part, that is, the transmission assembly 130 is graded in this embodiment, so that the two functions of the push rod assembly 200, which are telescopic and rotating, respectively pass The first transmission part and the second transmission part are realized.
  • the first transmission part includes a first transmission member 131 disposed between the first locking member 133 and the unlocking member 140 , and a third transmission member 132 in driving cooperation with the first transmission member 131 .
  • One end of the third transmission member 132 is connected to the The first locking member 133 is connected, and the other end is in contact with the first transmission member 131 .
  • the unlocking member 140 When the unlocking member 140 is active, it can drive the first transmission member 131 to move and drive the third transmission member 132 to move, and the third rotating member 132 pushes the first locking member 133 away from the first positioning hole 213 on the push rod assembly 200 , thereby , the locking between the upper rod part 212 and the lower rod part 211 is released, and the user can perform the telescopic operation of the push rod.
  • the second transmission part includes a second transmission member 135 disposed between the second locking member 134 and the unlocking member 140 , a fourth transmission member 136 in driving cooperation with the second locking member 134 , and connected to the second transmission member 135 and the fourth transmission member 136 .
  • a pull rope (not shown) between the transmission members 136 and the second transmission member 135 are further provided with a second unlocking portion 1351 , and the second unlocking portion 1351 can be in contact with the unlocking member 140 .
  • the unlocking member 140 When the unlocking member 140 is active, it can drive the second transmission member 135 to move to pull the pull rope, the pull rope moves to drive the fourth transmission member 136 to move, and the fourth transmission member 136 drives the second locking member 134 to leave the second locking member 134 on the main body 300 .
  • the hole 310 By positioning the hole 310, the locking contact between the lower rod portion 211 and the main body 300 allows the user to perform the folding operation of the push rod.
  • the movement of the unlocking member 140 drives the first unlocking portion 1311 and the second unlocking portion 1351 to move synchronously or sequentially.
  • the first unlocking portion 1311 and the second unlocking portion 1351 are substantially parallel to the vertical height, and after the unlocking member 140 is triggered to move, it will simultaneously interfere with the first unlocking portion 1311 and the second unlocking portion 1311 .
  • the unlocking portion 1351 moves, so that after the user operates the unlocking member 140 , the telescopic and folding operations of the push rod assembly 200 can be performed at the same time, thereby improving work efficiency.
  • the movement of the unlocking member 140 may also drive the first unlocking portion 1311 to move first, and then drive the second unlocking portion 1351 to move, so that the user can unlock the push rod first. Extending and retracting the assembly 200 and then folding the push rod assembly 200 is more in line with the user's operating habits.
  • the first transmission member 131 and the third transmission member 132 act in sequence to drive the first locking member 133 to move within the beam structure 400 , so that the first locking member 133 is stably separated from the first positioning hole 213 , thereby releasing the lock on the push rod assembly 200 , so that the push rod assembly 200 can be retracted.
  • the second transmission member 135 is actuated by the unlocking member 140, and the pulling rope is tightened to drive the fourth transmission member 136 to move, so that the second locking member 134 can be pulled out of the second positioning hole 310, thereby making the push rod assembly 200 is unlocked on the main body 300 so that the push rod assembly 200 is folded on the main body 300 .
  • the first positioning hole 213 and the second positioning hole 310 are not limited to hole-shaped structures, and may also be provided as positioning grooves or other similar structures.
  • both the first transmission member 131 and the third transmission member 132 can be rotatably disposed in the beam structure 400, and the first transmission member 131 and the third transmission member 132 are both seesaw structures, that is, Using the seesaw principle, the unlocking member 140 is pressed down, the height of the end of the first transmission member 131 in contact with the unlocking member 140 is lowered, and the height of the other end of the first transmission member 131 away from the unlocking member 140 is raised.
  • the third transmission member 132 connected to the transmission member 131 is also driven to rotate, so that the first locking member 133 is withdrawn from the first positioning hole 213 under the action of the third transmission member 132 .
  • the third transmission member 132 is provided with a first waist-shaped groove 1321
  • the first locking member 133 is provided with a first protrusion 1331
  • the first protrusion 1331 penetrates into the first waist-shaped groove 1321 to realize the third The connection between the transmission member 132 and the first locking member 133, when the third transmission member 132 rotates, the groove wall of the first waist-shaped groove 1321 exerts force on the first protrusion 1331, so that the first locking member 133 moves until Exit the first positioning hole 213 .
  • the first transmission member 131 and the third transmission member 132 have various structures, which are not limited to the above-mentioned seesaw structure.
  • the first transmission member 131 and the third transmission member 132 are both gears.
  • a rack or bevel gear is provided on the unlocking member 140
  • a rack is also provided on the first locking member 133 .
  • a mounting shell 120 is provided at one end of the lower rod portion 211 close to the main body 300 , the fourth transmission member 136 is rotatably connected to the mounting shell 120 , and the second transmission member 135 is rotatably connected to the beam structure within 400.
  • the second transmission member 135 and the fourth transmission member 136 are respectively seesaw structures.
  • the fourth transmission member 136 is provided with a second waist-shaped groove 1361
  • the second locking member 134 is provided with a second protrusion 1341
  • the second protrusion 1341 penetrates into the second waist-shaped groove 1361 to realize the fourth The connection between the transmission member 136 and the second locking member 134, when the fourth transmission member 136 rotates, the groove wall of the second waist-shaped groove 1361 exerts a force on the second protrusion 1341, so that the second locking member 134 moves until Exit the second positioning hole 310 .
  • the second transmission member 135 and the fourth transmission member 136 may also be gear structures.
  • the unlocking member 140 is provided with a rack or bevel gear, and the pull rope is wound on the second transmission member 135 and the fourth transmission member 136 respectively, and the fourth transmission member 136 and the second locking member 134 are matched with the rack through gears.
  • a wire guide tube 180 is provided in the beam structure 400 and the installation shell 120 , and the pull rope passes through the guide wire tube 180 and is connected to the fourth transmission member 136 , and the movement path of the pull wire can be restricted by the guide wire tube 180 . , to avoid the contact wear between the pull rope and the inner wall of the push rod.
  • the unlocking member 140 can move in various ways, such as: pressing up and down in the beam structure 400 to move, sliding left and right or back and forth on the surface of the beam structure 400, and rotating around its own axis on the beam structure 400 (ie, 360° rotation). ) or rotate around the fulcrum on the beam structure 400, etc.
  • a support plate 170 is also provided in the beam structure 400, and the first transmission part and the second transmission part are located on opposite sides of the support plate 170, so that the first transmission part and the second transmission part are separated, so that The shrinking and folding processes operate independently without interfering with each other.
  • the main body 300 is provided with a motor (not shown), and the hand-push mower further includes a safety component 190 .
  • the safety component 190 is electrically connected to the motor.
  • the safety component 190 makes the motor in a state of prohibiting activation;
  • the safety assembly 190 makes the motor in a state of allowing activation.
  • the safety assembly 190 is disposed in the beam structure 400, and is in driving cooperation with the unlocking member 140, and can be connected or disconnected relative to the movement of the unlocking member 140.
  • the safety assembly 190 When the first locking member 133 and/or the second locking member 134 When in the unlocked state, the safety assembly 190 enables the motor to be disabled from starting. In this way, when the unlocking member 140 is active, not only the first locking member 133 and the second locking member 134 are unlocked respectively, but also the safety component 190 is disconnected, so as to control the motor circuit to be disconnected and ensure that the main body 300 is pushed The lever assembly 200 cannot be turned on when the lever assembly 200 is in an unlocked state, which effectively improves the operation safety of the wheeled push tool.
  • the safety component 190 may be a contact switch or a position sensor or the like.
  • the wheeled push tool further includes a controller arranged in the main body 300, and the controller may be a single chip microcomputer or a programmable logic controller or the like.
  • the safety component 190 includes a Hall plate 191 and a magnet 192 disposed opposite to each other, and one of the Hall plate 191 and the magnet 192 is installed on the beam structure In 400, another is mounted on the transmission assembly 130. When the unlocking member 140 is active, the Hall plate 191 and the magnet 192 are staggered.
  • the magnet 192 is away from the Hall plate 191 and staggered from each other, which weakens the magnetic field on the Hall plate 191 and reduces the Hall plate 191.
  • the potential difference between the two ends of the plate 191 makes the safety component 190 in a disconnected state.
  • the Hall plate 191 is mounted on the support plate 170
  • the magnet 192 is mounted on the first transmission member 131 or the second transmission member 135 .
  • the locking mechanism 100 further includes a first reset member 150 , the first reset member 150 is installed in the beam structure 400 , and the first reset member 150 is used to reset the first locking member 133 to the first positioning hole 221 . After the first locking member 133 leaves the first positioning hole 221 , if the unlocking member 140 is released, under the action of the first reset member 150 , the first locking member 133 is reset into the first positioning hole 221 again. It should be noted that this embodiment does not limit the specific position of the first reset member 150 in the beam structure 400 , as long as the first locking member 133 can be restored to the previous state when the unlocking member 140 is released.
  • the first reset member 150 is connected to the unlocking member 140 and acts on the unlocking member 140 with a reset force; or, the first reset member 150 is connected to the first transmission part and acts a reset force on the first transmission part; A reset member 150 is directly connected to the first locking member 133 .
  • the first restoring member 150 may be a spring, elastic rubber, elastic metal sheet, or torsion spring, or the like.
  • the first restoring member 150 is a restoring spring. One end of the return spring is sleeved on the first locking member 133 , and the other end of the return spring is connected in the beam structure 400 .
  • the first locking member 133 exits the first positioning hole 221, and at this time, the return spring is compressed; when the unlocking member 140 is released, the first locking member 133 is under the action of the resilience of the return spring. Re-insert into the first positioning hole 221 .
  • the locking mechanism 100 further includes a second reset member (not shown), and the second reset member is used to reset the second locking member 134 into the second positioning hole 310 .
  • the second restoring member is a spring, and the spring is located in the mounting shell 120 and sleeved on the second locking member 134 .
  • a wheeled push tool In the second embodiment of the present invention, a hand-push lawn mower is used as an example. It should be noted that the second embodiment of the present invention is different from the second embodiment of the present invention. The difference between the first embodiment is that the hand-push lawn mower of the second embodiment is provided with two unlocking parts, and the two unlocking parts are used to realize the telescopic and folding unlocking of the push rod assembly 200 respectively, so the following content is only for the second embodiment. The difference between the embodiment and the first embodiment will be described, and the same parts as the first embodiment will not be repeated.
  • the locking mechanism 100 includes a transmission assembly 130 , a first unlocking member 141 and a second unlocking member 142 .
  • the transmission assembly 130 includes a first locking member 133 and a second locking member 134 , wherein the first locking member 133 acts to lock the upper rod portion 212 and the lower rod portion 211 , and the second locking member 134 acts to lock the main body 300 and the lower rod portion.
  • the movement of the first unlocking member 141 drives the first locking member 133 to unlock
  • the movement of the second unlocking member 142 drives the second locking member 134 to unlock
  • the installation position of the second unlocking member 142 and the connection between the lower rod portion 211 and the main body 300 The distance between them is 40cm-80cm in the length direction of the push rod assembly 200 , so that the user can easily touch the second unlocking member 142 .
  • the length and height of the push rod assembly 200 can be respectively adjusted by the first unlocking member 141 and the second unlocking member 142 before the user performs the mowing operation. If the user needs to adjust the length of the push rod assembly 200, the first unlocking member 141 can be triggered to unlock the lower rod portion 211 and the upper rod portion 212, and then the upper rod portion 212 and the lower rod portion 211 can be stretched to achieve the unlocking effect.
  • the length of the push rod assembly 200 changes; if the user needs to adjust the height of the push rod assembly 200, the second unlocking member 142 can be triggered to unlock the lower rod portion 211 and the main body 300, and then the push rod assembly 200 can be rotated to achieve The angle between the lower rod portion 211 and the main body 300 changes; when the height and length of the push rod assembly 200 are adjusted to meet the needs of the user, the first locking member 133 and the second locking member 134 respectively lock the upper rod portion 212 and The lower rod part 211 , the main body 300 and the lower rod part 211 make the push rod assembly 200 and the main body 300 form a relatively fixed state. At this time, the user can push the hand-push lawn mower to cut grass.
  • the retraction and folding unlocking of the push rod assembly 200 are respectively realized by two unlocking members, and the user can choose to operate the first unlocking member 141 or the second unlocking member 142 to selectively realize the first locking member 133 as required. Or the second locking member 134 is unlocked, and this option is to adjust the height or length of the push rod assembly 200, so that the telescopic and folding operations of the push rod assembly 200 will not affect each other, improving user experience; at the same time, the user can realize the push rod assembly.
  • the installation position of the second unlocking member 141 that is folded and unlocked 200 and the connection between the lower rod portion 211 and the main body 300 are spaced apart by 40cm-80cm in the length direction of the push rod assembly 200 so that the user can easily touch the second unlocking member 141, thereby, The user's work efficiency is further improved.
  • the push rod assembly 200 includes a first push rod 210 and a second push rod 220, and the first push rod 210 and the second push rod 220 are respectively connected with the main body 300.
  • the hand-push lawn mower further includes a beam structure 400 .
  • the beam structure 400 is disposed between the first push rod 210 and the second push rod 220 and is connected to the first push rod 210 and the second push rod 220 respectively.
  • the first unlocking member 141 and the second unlocking member 142 are both mounted on the beam structure 400 , and the beam structure 400 is disposed above the main body 300 , and the connection with the lower rod portion 211 and the main body 300 is spaced in the length direction of the push rod assembly 200 40cm-80cm, therefore, in the second embodiment of the present invention, the unlocking triggers of retraction and folding are integrated on the beam structure 400, and the beam structure 400 and the main body 300 are separated by a certain distance, which is easier for users to touch, Therefore, the user can easily complete the retraction and folding and unlocking of the push rod assembly 200 without bending over to touch the folding switch on the side of the main body 300 , which further facilitates the retraction and folding operations of the push rod.
  • the first unlocking member 141 and the second unlocking member 142 are both installed at the middle position of the beam structure 400 in the length direction, so that the position of the unlocking member is easier to be noticed by the user, and more It is easy to be operated by the user, thereby further improving the user experience.
  • the first push rod 210 and the second push rod 220 are respectively disposed on two sides of the main body 300 , and the structure of the second push rod 220 is basically the same as that of the first push rod 210 , are basically symmetrically connected on both sides of the main body, so that when the user performs the telescopic and folding operations of the push rod assembly 200, the second push rod 220 can expand and fold synchronously with the first push rod 210, which is convenient for the user to operate.
  • the first push rod 210 and the second push rod 220 may also be arranged side by side in the middle area of the main body, but are not limited to being disposed on both sides of the main body.
  • the push rod assembly 200 includes two push rods. In other embodiments, the push rod assembly may also include only one push rod.
  • the first unlocking member 141 and the second unlocking member 142 for the telescopic and folding control of the rod assembly 200 are installed on the operation panel 500 of the push lawn mower. Therefore, the user can easily access the first unlocking member 141 and the second unlocking member 142 to realize the retraction and folding control of the push rod assembly 200 .
  • the lower rod portion 211 is sleeved on the upper rod portion 212, and the beam structure 400 is installed on the lower rod portion 211, and the installation position of the beam structure 400 is close to the uppermost end of the lower rod portion 211,
  • the beam structure 400 is installed on the thicker lower rod portion 211, so that the beam structure 400 is more stably fixed on the push rod assembly 200, and the strength of the installation structure of the beam structure 400 is also improved;
  • the installation position of the beam structure 400 is closer to the uppermost end of the lower rod portion 211 , so the first locking member 141 and the second locking member 142 are in a position that is easier for the user to touch, thereby further facilitating the user to perform Telescoping and folding operations of push rods.
  • the beam structure 400 is installed at the middle position of the push rod assembly 200 in the length direction, so as to ensure that the user can easily access the first locking member 141 and the second locking member 142 on the basis of
  • the upper rod portion 212 and the lower rod portion 211 can also be designed to have substantially the same length, so that when the push rod assembly 200 is telescopically operated, the upper push rod 212 can be completely accommodated in the lower rod portion 211.
  • the lower push rod 211 is not too long to be accommodated on the main body 300 .
  • the beam structure 400 is installed on the upper rod portion 212.
  • the beam structure 400 is installed on a relatively thick On the upper rod portion 211 of the upper rod, the beam structure 400 is more stably fixed on the push rod assembly 200, and the strength of the installation structure of the beam structure 400 is also improved; , the telescopic operation of the push rod assembly 200 can be completed with the same hand, thereby improving the user experience.
  • the first unlocking member 141 and the second unlocking member 142 are arranged side by side along the length direction of the beam structure 400. Therefore, on the one hand, the beam structure 400 does not need to accommodate the first unlocking member. 141 and the second unlocking member 142 are designed to be thicker, reducing the space of the hand-push mower occupied by the beam structure 400; One right side by side setting, it is more convenient for users to select and operate, and the possibility of user misoperation is reduced.
  • the transmission assembly 130 is divided into a first transmission part and a second transmission part, that is, the transmission assembly 130 is graded in this embodiment, so that the telescopic and rotating functions of the push rod assembly 200 pass through The first transmission part and the second transmission part are completed.
  • the first transmission part includes a first transmission member 131 disposed between the first locking member 133 and the first unlocking member 141, a third transmission member 132 in driving cooperation with the first transmission member 131, and the third transmission member 132 One end is connected with the first locking member 133 , and the other end is in contact with the first transmission member 131 .
  • the first unlocking member 141 When the first unlocking member 141 is active, it can drive the first transmission member 131 to rotate and drive the third transmission member 132 to rotate, and the third rotation member 132 pushes the first locking member 133 away from the first positioning hole 213 on the push rod assembly 200 . In this way, the lock between the upper rod portion 212 and the lower rod portion 211 is released, and the user can perform the telescopic operation of the push rod.
  • the second transmission part includes a second transmission member 135 disposed between the second locking member 134 and the second unlocking member 142 , a fourth transmission member 136 in driving cooperation with the second locking member 134 , a fourth transmission member 136 connected to the second transmission member 135 and
  • the pull rope (not shown) between the fourth transmission member 136 and the second transmission member 135 is further provided with a second unlocking portion 1351 , and the second unlocking portion 1351 can be in contact with the second unlocking member 142 .
  • the second unlocking member 142 When the second unlocking member 142 is active, it can drive the second transmission member 135 to rotate to pull the pull rope, the pull rope moves to drive the fourth transmission member 136 to move, and the fourth transmission member 136 drives the second locking member 134 to leave the lock on the main body 300 .
  • the second positioning hole 310 With the second positioning hole 310, the lower rod portion 211 and the main body 300 are in locking contact, and the user can perform the folding operation of the push rod.
  • the specific structure of the transmission assembly 130 and the specific structure of the safety assembly 190 are basically the same as those in the first embodiment, and will not be repeated here.
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with “first”, “second” may expressly or implicitly include at least one of that feature.
  • plurality means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.
  • the terms “installed”, “connected”, “connected”, “fixed” and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between the two elements, unless otherwise specified limit.
  • installed may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between the two elements, unless otherwise specified limit.
  • a first feature "on” or “under” a second feature may be in direct contact between the first and second features, or the first and second features indirectly through an intermediary touch.
  • the first feature being “above”, “over” and “above” the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
  • the first feature being “below”, “below” and “below” the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

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Abstract

本发明涉及一种轮式推行工具，包括：主体，且主体上设有用于将主体支撑在工作面上的轮子；推杆组件，包括至少一个推杆，推杆包括下杆部及与下杆部可伸缩连接的上杆部，下杆部与主体可转动地连接；锁定机构，包括传动组件及解锁件，传动组件包括第一锁定件、第二锁定件，第一锁定件用于锁定上杆部及下杆部，第二锁定件用于锁定主体与下杆部，一次操作单个解锁件，以分别带动第一锁定件及第二锁定件解锁，并使得上杆部可相对于下杆部进行伸缩运动，且下杆部可相对主体转动。本轮式推行工具通过单个解锁件实现推杆组件的伸缩与折叠控制，便于用户操作，提高用户体验。

Description

轮式推行工具 技术领域
本发明涉及推杆技术领域，特别是涉及轮式推行工具。
背景技术
轮式推行工具通常会设置推杆，以方便用户手扶，推拉设备行走，比如：推草机、手推式播种机、手推式扫地机、手推式行李箱等。为了方便收纳、储藏，轮式推行工具通常都会将推杆设计为可被用户操作以进行收缩与折叠。传统的推杆在收缩和折叠过程中，需要在不同位置触发开关，尤其在折叠过程中，需要用户弯腰触发开关，导致推杆的收缩与折叠过程极其不便，严重影响产品的使用功能。
发明内容
基于此，有必要提供一种轮式推行工具，方便推杆进行收缩和折叠，提高轮式推行工具的使用便利性，提升产品的用户体验感。
一种轮式推行工具，所述轮式推行工具包括：主体，所述主体上设有用于将所述主体支撑在工作面上的轮子；推杆组件，包括至少一个推杆，所述推杆包括下杆部及与所述下杆部可伸缩连接的上杆部，所述下杆部与所述主体可转动地连接；锁定机构，包括传动组件及单个解锁件，所述传动组件包括第一锁定件、第二锁定件，所述第一锁定件用于锁定所述上杆部及所述下杆部，所述第二锁定件用于锁定所述主体与所述下杆部，一次操作至少一个所述解锁件，以分别带动所述第一锁定件及所述第二锁定件解锁，并使得所述上杆部可相对于所述下杆部进行伸缩运动，且所述下杆部可相对所述主体转动。
进一步地，所述解锁件的安装位置和所述下杆部与所述主体的连接处在所述推杆组件的长度方向上间隔40cm-80cm。
进一步地，当所述上杆部相对于所述下杆部的位移小于等于二分之一的所述上杆部相对于所述下杆部进行伸缩运动的最大运动行程时，所述下杆部相对所述主体进行转动。
进一步地，所述推杆组件包括第一推杆及第二推杆，所述第一推杆及所述第二推杆分别设置于所述主体相对的两侧，所述轮式推行工具在所述第一推杆及所述第二推杆之间还设有 横梁结构，所述横梁结构分别与所述第一推杆及所述第二推杆相连，所述锁定机构包含单个所述解锁件，且所述解锁件安装于所述横梁结构。
进一步地，当所述下杆部套设于所述上杆部时，所述横梁结构安装于所述下杆部；当所述上杆部套设于所述下杆部时，所述横梁结构安装于所述上杆部。
进一步地，所述传动组件还包括设置于所述第一锁定件及所述解锁件之间的第一传动件、设置于所述第二锁定件及所述解锁件之间的第二传动件，所述第一传动件还设有第一解锁部，所述第二传动件还设有第二解锁部，所述解锁件活动以抵触所述第一解锁部及所述第二解锁部运动。
进一步地，所述传动组件还包括与所述第一传动件传动配合的第三传动件，所述第三传动件的一端与所述第一锁定件连接，所述第三传动件的另一端抵触在所述第一传动件上，所述解锁件活动时能驱使所述第一传动件运动而带动所述第三传动件运动，所述第三传动件推动所述第一锁定件离开所述推杆组件上的第一定位孔。
进一步地，所述传动组件还包括第四传动件及连接在所述第二传动件与所述第四传动件之间的拉绳，第四传动件与所述第二锁定件传动配合，所述解锁件活动时能驱使所述第二传动件运动而拉动所述拉绳，所述拉绳运动而带动所述第四传动件运动，所述第四传动件驱动所述第二锁定件离开所述主体上的第二定位孔。
进一步地，所述传动组件至少部分设置于所述横梁结构内，所述传动组件还包括第一传动部分及第二传动部分，所述解锁件与所述第一传动部分配合以驱动所述第一锁定件解锁，所述解锁件与所述第二传动部分配合以驱动第二锁定件解锁。
进一步地，述横梁结构内还设有支撑板，所述第一传动部分与所述第二传动部分分别位于所述支撑板相对的两侧。
进一步地，所述主体上设有电机，所述轮式推行工具还包括安全组件，所述安全组件与所述电机电性连接，当所述第一锁定件和/或所述第二锁定件处于解锁状态时，所述安全组件使得所述电机处于禁止启动状态；当所述第一锁定件和所述第二锁定件处于锁定状态时，所述安全组件使得所述电机处于允许启动状态。
进一步地，所述安全组件与所述解锁件传动配合，并相对所述解锁件的运动处于连接或者断开状态。
一种轮式推行工具，所述轮式推行工具包括：主体，所述主体上设有用于将所述主体支撑在工作面上的轮子；推杆组件，包括至少一个推杆，所述推杆与所述主体相连，所述推杆 包括下杆部及与所述下杆部可伸缩连接的上杆部，所述下杆部与所述主体可转动地连接；锁定机构，包括传动组件、第一解锁件及第二解锁件，所述传动组件包括第一锁定件、第二锁定件，所述第一锁定件用于锁定所述上推杆及所述下推杆，所述第二锁定件用于锁定所述主体与所述下推杆，所述第一解锁件的运动带动所述第一锁定部解锁，所述第二解锁件的运动带动所述第二锁定部解锁，所述第二解锁件的安装位置和所述下杆部与所述主体的连接处在所述推杆组件的长度方向上间隔40cm-80cm。
进一步地，所述推杆组件包括第一推杆及第二推杆，所述第一推杆及所述第二推杆分别设置于所述主体相对的两侧，所述轮式推行工具在所述第一推杆及所述第二推杆之间还设有横梁结构，所述横梁结构分别与所述第一推杆及第二推杆相连，所述第二解锁件安装于所述横梁结构。
进一步地所述第一解锁件安装于所述横梁结构，且所述第一解锁件及所述第二解锁件沿着所述横梁结构的长度方向并排设置。
进一步地，所述传动组件还包括与所述第一传动件传动配合的第三传动件，所述第三传动件的一端与所述第一锁定件连接，所述第三传动件的另一端抵触在所述第一传动件上，所述第一解锁件活动时能驱使所述第一传动件运动而带动所述第三传动件运动，所述第三传动件推动所述第一锁定件离开所述推杆组件上的第一定位孔。
进一步地，当所述下杆部套设于所述上杆部时，所述横梁结构安装于所述下杆部；当所述上杆部套设于所述下杆部时，所述横梁结构安装于所述上杆部。
进一步地，所述传动组件还包括设置于所述第一锁定件及所述第一解锁件之间的第一传动件、与所述第一传动件传动配合的第三传动件，所述第三传动件的一端与所述第一锁定件连接，所述第三传动件的另一端抵触在所述第一传动件上，所述第一解锁件活动时能驱使所述第一传动件运动而带动所述第三传动件运动，所述第三传动件推动所述第一锁定件离开所述推杆组件上的第一定位孔。
进一步地，所述传动组件还包括第四传动件、设置于所述第二锁定件及所述第二解锁件之间的第二传动件及连接在所述第二传动件与所述第四传动件之间的拉绳，所述第四传动件与所述第二锁定件传动配合，所述第二解锁件活动时能驱使所述第二传动件运动而拉动所述拉绳，所述拉绳运动而带动所述第四传动件运动，所述第四传动件驱动所述第二锁定件离开所述主体上的第二定位孔。
本发明的轮式推行工具通过单个解锁件实现推杆组件的伸缩与折叠控制，便于用户操作， 提高用户体验，且单个解锁件设置于用户易于触及的推杆组件的中间位置，进一步地便于用户进行推杆组件的折叠与伸缩。
附图说明
构成本申请的一部分的附图用来提供对本发明的进一步理解，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为一个实施例中所述的轮式推行工具结构示意图；
图2为一个实施例中所述的推杆组件结构示意图；
图3为一个实施例中所述的解锁件与第一传动部分配合结构示意图；
图4为一个实施例中所述的解锁件与第二传动部分配合结构示意图；
图5为另一个实施例中所述的轮式推行工具结构示意图；
图6为另一个实施例中所述的推杆组件结构示意图；
图7为另一个实施例中所述的解锁件与第一传动部分配合结构示意图；
图8为另一个实施例中所述的解锁件与第二传动部分配合结构示意图；
图9为一个实施例中所述的安全组件在横梁结构内的结构示意图。
具体实施方式
为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图对本发明的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本发明。但是本发明能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本发明内涵的情况下做类似改进，因此本发明不受下面公开的具体实施例的限制。
本发明提供了一种轮式推行工具，该轮式推行工具可以是手推式割草机、手推式播种机、手推式扫地机、手推式行李箱等，请参考图1至图4，在本发明的第一实施例中，以轮式推行工具为手推式割草机为例。
手推式割草机包括：主体300、推杆组件200及锁定机构100。主体300上设有将主体300支撑在工作面上的轮子320。推杆组件200包括至少一个推杆，比如：第一推杆210，第 一推杆210包含下杆部211及与下杆部211可伸缩连接的上杆部212，上杆部212相对于下杆部211在第一位置及第二位置间运动，下杆部211与主体300可转动地连接，通过推动上杆部212可以实现推杆组件200的伸缩，通过转动下杆部211可实现推杆的折叠，以此，一方面，在进行割草作业时，用户可以根据需要调节推杆组件200的高度；另一方面，在完成割草作业后，可以减少手推割草机的占用空间。在本发明的一实施例中，下杆部211套设于上杆部212，即下杆部211为粗杆，在进行推杆组件200的伸缩操作时，上杆部212运动以至少部分收纳至下杆部211内；当然，在其他实施例中，也可以是上杆部212套设于下杆部211，即上杆部212为粗杆，在进行推杆组件200的伸缩操作时，上杆部212运动以至少部分地容纳下杆部211。进一步地，上述第一位置在本发明的一优选实施例中，具体为推杆组件200处于极限拉伸状态时，上杆部212的位置；对应地，上述第二位置则具体为推杆组件200处于极限收缩状态时，上杆部212的位置；当然，在其他实施例中，第一位置及第二位置也可以是推杆组件200处于极限拉伸状态及极限收缩状态的之间的任意两个状态时，上杆部212的位置。
锁定机构100包括传动组件130及解锁件140。传动组件130包含第一锁定件133、第二锁定件134，其中，第一锁定件133作用于锁定上杆部212与下杆部211，第二锁定件134作用于锁定主体300与下杆部211，一次操作至少一个解锁件140，以分别带动第一锁定件133及所述第二锁定件134解锁，并使得上杆部212可相对于下杆部211进行伸缩运动，且下杆部211可相对于主体300转动。在本发明的第一实施例中，所述解锁件140仅设有一个，需要注意的是，在其他实施例中，解锁件140也可以是中间切割开以形成两个，但用户仍仅需一次操作，便可以驱动两个解锁件140触发解锁。
具体地，上述的手推割草机，在用户进行割草作业前，需旋转推杆组件200，调整下杆部211与主体300之间的角度以调节推杆组件200的高度；同时，也需拉伸上杆部212与下杆部211，调节推杆组件200的长度；当推杆组件200的高度及长度调节至与用户需求相符时，通过第一锁定件133和第二锁定件134，分别锁定上杆部212与下杆部211、主体300与下杆部211，使得推杆组件200与主体300上形成相对固定状态，此时，用户可以推动手推割草机进行割草作业。当需要对推杆组件200进行收缩与折叠时，用户仅需一次操作上述的解锁件140，便可以驱使第一锁定件133和第二锁定件134，以分别对推杆组件200的伸缩和旋转功能进行解锁，用户可以同时进行推杆组件200的伸缩与折叠，极大方便了推杆的收缩和折叠操作，有效提高手推割草机的使用便利性，大大提升产品的用户体验感。
进一步地，在上杆部212相对下杆部211在第一位置及第二位置之间运动的过程中，下杆部211可同时相对主体300进行转动，以此，用户在通过解锁件140完成推杆组件200的伸缩与折叠解锁后，在进行推杆组件200的伸缩操作的过程中，可同步进行推杆组件200的折叠操作，提高用户体验。
进一步地，在本发明的一实施例中，当上杆部212相对于下杆部211的位移小于等于二分之一的上杆部212相对于下杆部211进行伸缩运动的最大运动行程时，下杆部211相对于主体300进行转动，以此，用户仅需先通过解锁件140实现推杆组件200的伸缩及折叠解锁，之后推杆组件200的伸缩与折叠操作是可以根据用户需要同步进行的，而无需先单独完成推杆组件200的伸缩操作，后再单独进行推杆组件200的折叠操作，从而提高了用户的操作体验。需要注意的是，在其他实施例中，上杆部212相对于下杆部211的位移也可以是小于等于三分之二、四分之三或五分之四的上述最大运动行程，并不局限于上述的二分之一，只要满足用户无需先单独完成推杆组件200的伸缩操作，后才能进行推杆组件200的折叠操作即可。
解锁件140的安装位置和下杆部211与主体300的连接处在推杆组件200的长度方向上间隔40cm-80cm，以此，使得用户易于接触到解锁件140。具体地，在本发明的优选实施例中，所述推杆组件200包括第一推杆210及第二推杆220，第一推杆210及第二推杆220分别与主体300相连。手推割草机还包括横梁结构400，横梁结构400设置于第一推杆210及第二推杆220之间，且分别与第一推杆210及第二推杆220相连。解锁件140安装于横梁结构400，横梁结构400设置于主体300的上方，且与下杆部211及主体300的连接处间隔40cm-80cm，以此，在本发明的第一实施例中，通过将收缩与折叠的解锁触发统一集成在横梁结构400上，并且横梁结构400和主体300间隔一定距离以更易于用户接触到，从而用户无需通过弯腰触控主体300一侧的折叠开关，便可以轻松地完成推杆组件200的伸缩及折叠解锁，进一步地方便了推杆的收缩和折叠操作。在本发明的优选实施例中，解锁件140安装于横梁结构400在长度方向上的中间位置，以此，解锁件140的位置更易于被用户注意到，也更易于被用户操作，从而进一步地提高用户体验。
进一步地，在本发明的一实施例中，第一推杆210及第二推杆220分别设置于主体300的两侧，且第二推杆220的结构构造为与第一推杆210基本一致，基本对称地连接在主体两侧，以此，在用户进行推杆组件200的伸缩与折叠作业时，第二推杆220可以与第一推杆210同步进行伸缩及折叠，便于用户操作。当然，在其他实施例中，第一推杆210及第二推杆220 也可以并列设置在主体的中间区域，而不局限于设置于主体的两侧。需要注意的是，推杆组件200包含两个推杆仅是本发明的一优选实施例，在其他实施例中，推杆组件也可以是仅包含一个推杆，此时，用于实现推杆组件200的伸缩与折叠一键控制的解锁件140安装于手推割草机的操作面板500上，操作面板500和下杆部211与主体300的连接处间隔较远，以此，用户易于接触到解锁件140以实现推杆组件200的收缩与折叠控制。
进一步地，在本发明的一实施例中，下杆部211套设于上杆部212，且横梁结构400安装于下杆部211，横梁结构400的安装位置靠近下杆部211的最上端，以此，一方面，将横梁结构400安装于较粗的下杆部211上，使得横梁结构400更稳定地固定在推杆组件200上，也提高了横梁结构400的安装结构的强度；另一方面，横梁结构400的安装位置与下杆部211的最上端距离较近，则锁定件140处于更易于被用户触碰的位置，以此，进一步地方便用户进行推杆的伸缩与折叠操作。在本发明的一优选实施例中，横梁结构400安装于推杆组件200在长度方向上的中间位置，以此，在保证用户可以易于接触到锁定件140的基础上，还可以使得上杆部212与下杆部211可以设计成长度基本一致，从而在进行推杆组件200的伸缩操作时，上推杆212可以完全收容入下杆部211内，在进行推杆组件200的折叠操作时，下推杆211也不会过长而无法收容在主体300上。还需要注意的是，在其他实施例中，若上杆部212套设于下杆部211，则横梁结构400安装于上杆部212，此时，一方面，将横梁结构400安装于较粗的上杆部211上，使得横梁结构400更稳定地固定在推杆组件200上，也提高了横梁结构400的安装结构的强度；另一方面，用户在按压解锁件140进行伸缩与折叠解锁后，用同样的手顺势便可以完成推杆组件200的伸缩操作，提高用户的使用体验。
在本发明的第一实施例中，传动组件130分为第一传动部分与第二传动部分，即本实施例对传动组件130进行分级，使得推杆组件200的伸缩和旋转两个功能分别通过第一传动部分和第二传动部分实现。
其中，第一传动部分包括设置于第一锁定件133及解锁件140之间的第一传动件131、与第一传动件131传动配合的第三传动件132，第三传动件132的一端与第一锁定件133相连，另一端抵触在第一传动件131上，第一传动件131还设有第一解锁部1311，第一解锁部1311可与解锁件140接触。解锁件140活动时，能驱使第一传动件131运动而带动第三传动件132运动，第三转动件132则推动第一锁定件133离开推杆组件200上的第一定位孔213，以此，上杆部212与下杆部211之间的锁定解除，用户可进行推杆的伸缩操作。第二传动部分包括设置于第二锁定件134及解锁件140之间的第二传动件135、与第二锁定件134传动 配合的第四传动件136、连接在第二传动件135及第四传动件136之间的拉绳(未图示)，第二传动件135还设有第二解锁部1351，第二解锁部1351可与解锁件140接触。解锁件140活动时，能驱使第二传动件135运动而拉动拉绳，拉绳运动而带动第四传动件136运动，第四传动件136则驱使第二锁定件134离开主体300上的第二定位孔310，以此，下杆部211与主体300之间的锁定接触，用户可进行推杆的折叠操作。
进一步地，解锁件140的活动带动第一解锁部1311及第二解锁部1351同步或先后运动。在本发明的第一实施例中，第一解锁部1311及第二解锁部1351在竖直高度上基本平行设置，且解锁件140被触发运动后，会同时抵触第一解锁部1311及第二解锁部1351运动，以此，用户操作解锁件140后，可同时进行推杆组件200的伸缩及折叠操作，提高工作效率。当然，还需要注意的是，在其他实施例中，解锁件140的活动也可以是先带动第一解锁部1311运动，后再带动第二解锁部1351运动，以此，用户可以优先解锁推杆组件200的伸缩，后再进行推杆组件200的折叠，更符合用户的操作习惯。
综上，当解锁件140活动时，第一传动件131与第三传动件132依次动作，驱使第一锁定件133在横梁结构400内移动，使得第一锁定件133稳定脱离第一定位孔213，以此解除推杆组件200上的锁定，从而使得推杆组件200能够进行收缩。同时，第二传动件135在解锁件140的驱使下发生动作，拉紧拉绳，带动第四传动件136发生动作，使得第二锁定件134拔出第二定位孔310，从而使得推杆组件200在主体300上解锁，以便推杆组件200折叠在主体300上。此外，第一定位孔213及第二定位孔310并不限于孔形结构，也可以设置成定位槽或其他类似结构。
在本发明的第一实施例中，第一传动件131与第三传动件132均可转动设置在横梁结构400内，且第一传动件131与第三传动件132均为跷跷板结构，即，利用跷跷板原理，下压解锁件140，降低第一传动件131与解锁件140接触的一端的高度，并提升第一传动件131远离解锁件140的另一端的高度，对应地，与第一传动件131传动连接的第三传动件132也被带动而进行转动，以此，使得第一锁定件133在第三传动件132的作用下从第一定位孔213中退出。具体地，第三传动件132上设有第一腰型槽1321，第一锁定件133上设有第一凸起1331，第一凸起1331穿入第一腰型槽1321内以实现第三传动件132与第一锁定件133之间的连接，当第三传动件132进行转动时，第一腰型槽1321的槽壁对第一凸起1331施力，使得第一锁定件133运动直至退出第一定位孔213。需要说明的是，在其他实施例中，第一传动件131与第三传动件132结构有多种，不局限于上述跷跷板结构，比如：第一传动件131 与第三传动件132均为齿轮，对应地，解锁件140上设齿条或者锥齿轮，第一锁定件133上也设有齿条。当解锁件140上下按压或者绕自身轴线旋转时，通过齿轮配合，使得第一锁定件133在横梁结构400内移动；或者，第一传动件131与第三传动件132分别为曲柄、连杆，解锁件140连接在曲柄的轴心上，连杆两端分别连接在曲柄与第一锁定件133上，利用曲柄滑块原理，旋转解锁件140驱使第一锁定件133来回移动。
在本发明的第一实施例中，下杆部211靠近主体300一端设有安装壳120，第四传动件136可转动地连接在安装壳120内，第二传动件135可转动连接在横梁结构400内。第二传动件135与第四传动件136分别为跷跷板结构，解锁件140下压时，降低第二传动件135与解锁件140接触的一端的高度，并提升第二传动件135远离解锁件140的另一端的高度；在拉绳的作用下，第四传动件136进行转动而驱使第二锁定件134移动，与第二定位孔310分离。具体地，第四传动件136上设有第二腰型槽1361，第二锁定件134上设有第二凸起1341，第二凸起1341穿入第二腰型槽1361内以实现第四传动件136与第二锁定件134之间的连接，当第四传动件136进行转动时，第二腰型槽1361的槽壁对第二凸起1341施力，使得第二锁定件134移动直至退出第二定位孔310。需要注意的是，在其他实施例中，第二传动件135与第四传动件136还可为齿轮结构。当第二传动件135与第四传动件136为齿轮结构时，解锁件140上设齿条或者锥齿轮，拉绳分别缠绕在第二传动件135与第四传动件136上，第四传动件136与第二锁定件134通过齿轮与齿条配合。
进一步地，横梁结构400及安装壳120内设有导绳管180，拉绳穿过导绳管180内与第四传动件136连接，通过导绳管180，可以对拉绳的运动路径进行限制，避免拉绳与推杆的内壁接触磨损。
进一步地，解锁件140的活动方式有多种，比如：在横梁结构400内上下按压移动、在横梁结构400的表面上左右或者前后滑动、在横梁结构400上绕自身轴线旋转(即360°旋转)或者绕横梁结构400上的支点转动等。
进一步地，横梁结构400内还设有支撑板170，第一传动部分与第二传动部分分别位于支撑板170的相对两侧，如此，将第一传动部分和第二传动部分分隔开，使得收缩和折叠过程各自运行，互不干扰。
请继续参考图1、图5及图9，主体300上设有电机(未图示)，手推割草机还包括安全组件190，安全组件190与电机电性连接，当第一锁定件133和/或第二锁定件134处于解锁状态时，安全组件190使得电机处于禁止启动状态；当第一锁定件133和第二锁定件134处 于锁定状态时，安全组件190使得电机处于允许启动状态。具体地，安全组件190设置于横梁结构400内，且与解锁件140传动配合，并相对解锁件140的活动能处于连接或者断开状态，当第一锁定件133和/或第二锁定件134处于解锁状态时，安全组件190能使电机处于禁止启动状态。如此，当解锁件140活动时，不仅使得第一锁定件133和第二锁定件134分别进行解锁操作，而且还使得安全组件190处于断开状态，以控制电机电路断开，保证主体300在推杆组件200处于解锁状态下无法开机，有效提升轮式推行工具的操作安全。
进一步地，安全组件190可为触点开关或者位置传感器等。同时，轮式推行工具还包括设置在主体300内的控制器，控制器可为单片机或者可编程逻辑控制器等。具体地，请参考图9，在本发明的一实施例中，安全组件190包括相对设置的霍尔板191与磁铁192，在霍尔板191与磁铁192两者中，一个装设在横梁结构400内，另一个装设在传动组件130上。当解锁件140活动时，霍尔板191与磁铁192相互错开，例如：解锁件140下压时，磁铁192远离霍尔板191，并相互错开，弱化霍尔板191上的磁场，减小霍尔板191的两端薄片之间电位差，使得安全组件190处于断开状态。霍尔板191装设在支撑板170上，磁铁192装设在第一传动件131或者第二传动件135上。
锁定机构100还包括第一复位件150，第一复位件150装设在横梁结构400内，第一复位件150用于将第一锁定件133复位至第一定位孔221中。第一锁定件133离开第一定位孔221后，若松开解锁件140，在第一复位件150的作用下，第一锁定件133又重新复位至第一定位孔221中。需要说明的是，本实施例不限定第一复位件150在横梁结构400内的具体位置，只需满足松开解锁件140时，第一锁定件133能恢复至之前的状态。比如：第一复位件150连接在解锁件140上，对解锁件140作用复位力；或者，第一复位件150连接在第一传动部分上，对第一传动部分作用复位力；又或者，第一复位件150直接连接在第一锁定件133上。可选地，第一复位件150可为弹簧、弹性橡胶、弹性金属片或者扭簧等。具体地，请参考图7，第一复位件150为复位弹簧。复位弹簧一端套接在第一锁定件133上，复位弹簧另一端连接在横梁结构400内。当解锁件140活动时，第一锁定件133退出第一定位孔221，此时，复位弹簧被压缩；当解锁件140被松开时，第一锁定件133在复位弹簧的回弹力作用下，重新插入第一定位孔221中。
进一步地，锁定机构100还包括第二复位件(未图示)，第二复位件用于将第二锁定件134复位至第二定位孔310中。第二锁定件134离开第二定位孔310后，若松开解锁件140，在第二复位件的作用下，第二锁定件134又重新复位至第二定位孔310中，重新锁定推杆组 件200。具体地，第二复位件为弹簧，该弹簧位于安装壳120内，并套设在第二锁定件134上。
请参考图5-图8，一种轮式推行工具，在本发明的第二实施例中，以手推割草机为例，需要注意的是，本发明的第二实施例与本发明的第一实施例的区别在于：第二实施例的手推割草机设有两个解锁件，通过两个解锁件分别实现推杆组件200的伸缩与折叠解锁，故下面的内容仅针对第二实施例与第一实施例的区别进行描述，与第一实施例相同的部分则不再赘述。
在本发明的第二实施例中，锁定机构100包含传动组件130、第一解锁件141、第二解锁件142。传动组件130包含第一锁定件133、第二锁定件134，其中，第一锁定件133作用于锁定上杆部212与下杆部211，第二锁定件134作用于锁定主体300与下杆部211，第一解锁件141的运动带动第一锁定件133解锁，第二解锁件142的运动带动第二锁定件134解锁，第二解锁件142的安装位置和下杆部211与主体300的连接处在推杆组件200的长度方向上间隔40cm-80cm，以此，使得用户易于接触第二解锁件142。
具体地，在本实施例中，在用户进行割草作业前，可通过第一解锁件141及第二解锁件142分别调节推杆组件200的长度及高度。若用户需要调节推杆组件200的长度，则可通过触发第一解锁件141以实现下杆部211及上杆部212之间的解锁，后拉伸上杆部212与下杆部211以实现推杆组件200的长度变化；若用户需要调节推杆组件200的高度，则可通过触发第二解锁件142以实现下杆部211与主体300之间的解锁，后旋转推杆组件200以实现下杆部211与主体300之间的角度变化；当推杆组件200的高度及长度调节至与用户需求相符时，通过第一锁定件133和第二锁定件134，分别锁定上杆部212与下杆部211、主体300与下杆部211，使得推杆组件200与主体300上形成相对固定状态，此时，用户可以推行手推割草机进行割草作业。在本实施例中，通过两个解锁件分别实现推杆组件200的伸缩与折叠解锁，用户可以根据需要选择操作第一解锁件141或第二解锁件142以可选择地实现第一锁定件133或第二锁定件134解锁，并以此选择是调整推杆组件200的高度或长度，从而推杆组件200的伸缩与折叠操作不会相互影响，提高用户体验；同时用户用以实现推杆组件200折叠解锁的第二解锁件141的安装位置和下杆部211与主体300的连接处在推杆组件200的长度方向上间隔40cm-80cm以使得用户易于接触第二解锁件141，以此，进一步地提高了用户的工作效率。
进一步地，推杆组件200包括第一推杆210及第二推杆220，第一推杆210及第二推杆 220分别与主体300相连。手推割草机还包括横梁结构400，横梁结构400设置于第一推杆210及第二推杆220之间，且分别与第一推杆210及第二推杆220相连。第一解锁件141及第二解锁件142均安装于横梁结构400，且横梁结构400设置于主体300的上方，与下杆部211及主体300的连接处在推杆组件200的长度方向上间隔40cm-80cm，以此，在本发明的第二实施例中，通过将收缩与折叠的解锁触发统一集成在横梁结构400上，并且横梁结构400和主体300间隔一定距离，更易于用户接触到，从而用户无需通过弯腰触控主体300一侧的折叠开关，便可以轻松地完成推杆组件200的伸缩及折叠解锁，进一步地方便了推杆的收缩和折叠操作。在本发明的优选实施例中，第一解锁件141及第二解锁件142均安装于横梁结构400在长度方向上的中间位置，以此，解锁件的位置更易于被用户注意到，也更易于被用户操作，从而进一步地提高用户体验。
进一步地，在本发明的一实施例中，第一推杆210及第二推杆220分别设置于主体300的两侧，且第二推杆220的结构构造为与第一推杆210基本一致，基本对称地连接在主体两侧，以此，在用户进行推杆组件200的伸缩与折叠作业时，第二推杆220可以与第一推杆210同步进行伸缩及折叠，便于用户操作。当然，在其他实施例中，第一推杆210及第二推杆220也可以并列设置在主体的中间区域，而不局限于设置于主体的两侧。需要注意的是，推杆组件200包含两个推杆仅是本发明的一优选实施例，在其他实施例中，推杆组件也可以是仅包含一个推杆，此时，用于分别实现推杆组件200的伸缩与折叠控制的第一解锁件141及第二解锁件142安装于手推割草机的操作面板500上，操作面板500和下杆部211与主体300的连接处间隔较远，以此，用户易于接触到第一解锁件141及第二解锁件142以实现推杆组件200的收缩与折叠控制。
进一步地，在本发明的一实施例中，下杆部211套设于上杆部212，且横梁结构400安装于下杆部211，横梁结构400的安装位置靠近下杆部211的最上端，以此，一方面，将横梁结构400安装于较粗的下杆部211上，使得横梁结构400更稳定地固定在推杆组件200上，也提高了横梁结构400的安装结构的强度；另一方面，横梁结构400的安装位置与下杆部211的最上端距离较近，则第一锁定件141及第二锁定件142处于更易于被用户触碰的位置，以此，进一步地方便用户进行推杆的伸缩与折叠操作。在本发明的一优选实施例中，横梁结构400安装于推杆组件200在长度方向上的中间位置，以此，在保证用户可以易于接触到第一锁定件141及第二锁定件142的基础上，还可以使得上杆部212与下杆部211可以设计成长度基本一致，从而在进行推杆组件200的伸缩操作时，上推杆212可以完全收容入下杆部211 内，在进行推杆组件200的折叠操作时，下推杆211也不会过长而无法收容在主体300上。还需要注意的是，在其他实施例中，若上杆部212套设于下杆部211，则横梁结构400安装于上杆部212，此时，一方面，将横梁结构400安装于较粗的上杆部211上，使得横梁结构400更稳定地固定在推杆组件200上，也提高了横梁结构400的安装结构的强度；另一方面，用户在按压第一锁定件141进行伸缩解锁后，用同样的手顺势便可以完成推杆组件200的伸缩操作，提高用户的使用体验。
进一步地，在本发明的一实施例中，第一解锁件141及第二解锁件142沿着横梁结构400的长度方向并排设置，以此，一方面，横梁结构400无需为了容纳第一解锁件141及第二解锁件142而设计的较厚，减少横梁结构400所占据的手推割草机的空间；另一方面，第一解锁件141与第二解锁件142在横梁结构400上一左一右并排设置，更便于用户进行选择操作，降低了用户误操作的可能。
在本发明的第二实施例中，传动组件130分为第一传动部分与第二传动部分，即本实施例对传动组件130进行分级，使得推杆组件200的伸缩和旋转两个功能分别通过第一传动部分和第二传动部分完成。
其中，第一传动部分包括设置于第一锁定件133及第一解锁件141之间的第一传动件131、与第一传动件131传动配合的第三传动件132，第三传动件132的一端与第一锁定件133相连，另一端抵触在第一传动件131上，第一传动件131还设有第一解锁部1311，第一解锁部1311可与第一解锁件141接触。第一解锁件141活动时，能驱使第一传动件131转动而带动第三传动件132转动，第三转动件132则推动第一锁定件133离开推杆组件200上的第一定位孔213，以此，上杆部212与下杆部211之间的锁定解除，用户可进行推杆的伸缩操作。第二传动部分包括设置于第二锁定件134及第二解锁件142之间的第二传动件135、与第二锁定件134传动配合的第四传动件136、连接在第二传动件135及第四传动件136之间的拉绳(未图示)，第二传动件135还设有第二解锁部1351，第二解锁部1351可与第二解锁件142接触。第二解锁件142活动时，能驱使第二传动件135转动而拉动拉绳，拉绳运动而带动第四传动件136运动，第四传动件136则驱使第二锁定件134离开主体300上的第二定位孔310，以此，下杆部211与主体300之间的锁定接触，用户可进行推杆的折叠操作。
需要注意的是，在本发明的第二实施例中，传动组件130的具体结构及安全组件190的具体结构与第一实施例中基本一致，这里便不再赘述。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中 的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
需要说明的是，当元件被称为“固定于”或“设置于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“上”、“下”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。

Claims (20)

  1. 一种轮式推行工具，其特征在于，所述轮式推行工具包括：
    主体，所述主体上设有用于将所述主体支撑在工作面上的轮子；
    推杆组件，包括至少一个推杆，所述推杆包括下杆部及与所述下杆部可伸缩连接的上杆部，所述下杆部与所述主体可转动地连接；
    锁定机构，包括传动组件及解锁件，所述传动组件包括第一锁定件、第二锁定件，所述第一锁定件用于锁定所述上杆部及所述下杆部，所述第二锁定件用于锁定所述主体与所述下杆部，一次操作至少一个所述解锁件，以分别带动所述第一锁定件及所述第二锁定件解锁，并使得所述上杆部可相对于所述下杆部进行伸缩运动，且所述下杆部可相对所述主体转动。
  2. 根据权利要求1所述的轮式推行工具，其特征在于，所述解锁件的安装位置和所述下杆部与所述主体的连接处在所述推杆组件的长度方向上间隔40cm-80cm。
  3. 根据权利要求1所述的轮式推行工具，其特征在于，在所述上杆部相对所述下杆部在第一位置及第二位置之间运动的过程中，所述下杆部可相对所述主体进行转动。
  4. 根据权利要求1所述的轮式推行工具，其特征在于，当所述上杆部相对于所述下杆部的位移小于等于二分之一的所述上杆部相对于所述下杆部进行伸缩运动的最大运动行程时，所述下杆部相对所述主体进行转动。
  5. 根据权利要求1所述的轮式推行工具，其特征在于，所述推杆组件包括第一推杆及第二推杆，所述第一推杆及所述第二推杆分别设置于所述主体相对的两侧，所述轮式推行工具在所述第一推杆及所述第二推杆之间还设有横梁结构，所述横梁结构分别与所述第一推杆及所述第二推杆相连，所述锁定机构包含单个所述解锁件，且所述解锁件安装于所述横梁结构。
  6. 根据权利要求5所述的轮式推行工具，其特征在于，当所述下杆部套设于所述上杆部时，所述横梁结构安装于所述下杆部；当所述上杆部套设于所述下杆部时，所述横梁结构安装于所述上杆部。
  7. 根据权利要求1所述的轮式推行工具，其特征在于，所述传动组件还包括设置于所述第一锁定件及所述解锁件之间的第一传动件、设置于所述第二锁定件及所述解锁件之间的第二传动件，所述第一传动件还设有第一解锁部，所述第二传动件还设有第二解锁部，所述解锁件活动以抵触所述第一解锁部及所述第二解锁部运动。
  8. 根据权利要求7所述的轮式推行工具，其特征在于，所述解锁件的活动带动所述第一解锁部及所述第二解锁部同步运动。
  9. 根据权利要求7所述的轮式推行工具，其特征在于，所述传动组件还包括与所述第一 传动件传动配合的第三传动件，所述第三传动件的一端与所述第一锁定件连接，所述第三传动件的另一端抵触在所述第一传动件上，所述解锁件活动时能驱使所述第一传动件运动而带动所述第三传动件运动，所述第三传动件推动所述第一锁定件离开所述推杆组件上的第一定位孔。
  10. 根据权利要求7所述的轮式推行工具，其特征在于，所述传动组件还包括第四传动件及连接在所述第二传动件与所述第四传动件之间的拉绳，第四传动件与所述第二锁定件传动配合，所述解锁件活动时能驱使所述第二传动件运动而拉动所述拉绳，所述拉绳运动而带动所述第四传动件运动，所述第四传动件驱动所述第二锁定件离开所述主体上的第二定位孔。
  11. 根据权利要求5所述的轮式推行工具，其特征在于，所述传动组件至少部分设置于所述横梁结构内，所述传动组件还包括第一传动部分及第二传动部分，所述解锁件与所述第一传动部分配合以驱动所述第一锁定件解锁，所述解锁件与所述第二传动部分配合以驱动第二锁定件解锁。
  12. 根据权利要求11所述的轮式推行工具，其特征在于，所述横梁结构内还设有支撑板，所述第一传动部分与所述第二传动部分分别位于所述支撑板相对的两侧。
  13. 根据权利要求1所述的轮式推行工具，其特征在于，所述主体上设有电机，所述轮式推行工具还包括安全组件，所述安全组件与所述电机电性连接，当所述第一锁定件和/或所述第二锁定件处于解锁状态时，所述安全组件使得所述电机处于禁止启动状态；当所述第一锁定件和所述第二锁定件处于锁定状态时，所述安全组件使得所述电机处于允许启动状态。
  14. 根据权利要求13所述的轮式推行工具，其特征在于，所述安全组件与所述解锁件传动配合，并相对所述解锁件的运动处于连接或者断开状态。
  15. 一种轮式推行工具，其特征在于，所述轮式推行工具包括：
    主体，所述主体上设有用于将所述主体支撑在工作面上的轮子；
    推杆组件，包括至少一个推杆，所述推杆与所述主体相连，所述推杆包括下杆部及与所述下杆部可伸缩连接的上杆部，所述下杆部与所述主体可转动地连接；
    锁定机构，包括传动组件、第一解锁件及第二解锁件，所述传动组件包括第一锁定件、第二锁定件，所述第一锁定件用于锁定所述上推杆及所述下推杆，所述第二锁定件用于锁定所述主体与所述下推杆，所述第一解锁件的运动带动所述第一锁定部解锁，所述第二解锁件的运动带动所述第二锁定部解锁，所述第二解锁件的安装位置和所述下杆部与所述主体的连接处在所述推杆组件的长度方向上间隔40cm-80cm。
  16. 根据权利要求15所述的轮式推行工具，其特征在于，所述推杆组件包括第一推杆及第二推杆，所述第一推杆及所述第二推杆分别设置于所述主体相对的两侧，所述轮式推行工具在所述第一推杆及所述第二推杆之间还设有横梁结构，所述横梁结构分别与所述第一推杆及第二推杆相连，所述第二解锁件安装于所述横梁结构。
  17. 根据权利要求16所述的轮式推行工具，其特征在于，所述第一解锁件安装于所述横梁结构，且所述第一解锁件及所述第二解锁件沿着所述横梁结构的长度方向并排设置。
  18. 根据权利要求16所述的轮式推行工具，其特征在于，当所述下杆部套设于所述上杆部时，所述横梁结构安装于所述下杆部；当所述上杆部套设于所述下杆部时，所述横梁结构安装于所述上杆部。
  19. 根据权利要求15所述的轮式推行工具，其特征在于，所述传动组件还包括设置于所述第一锁定件及所述第一解锁件之间的第一传动件、与所述第一传动件传动配合的第三传动件，所述第三传动件的一端与所述第一锁定件连接，所述第三传动件的另一端抵触在所述第一传动件上，所述第一解锁件活动时能驱使所述第一传动件运动而带动所述第三传动件运动，所述第三传动件推动所述第一锁定件离开所述推杆组件上的第一定位孔。
  20. 根据权利要求15所述的轮式推行工具，其特征在于，所述传动组件还包括第四传动件、设置于所述第二锁定件及所述第二解锁件之间的第二传动件及连接在所述第二传动件与所述第四传动件之间的拉绳，所述第四传动件与所述第二锁定件传动配合，所述第二解锁件活动时能驱使所述第二传动件运动而拉动所述拉绳，所述拉绳运动而带动所述第四传动件运动，所述第四传动件驱动所述第二锁定件离开所述主体上的第二定位孔。
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