WO2025246778A1 - 耙草附件、耙草机及花园工具 - Google Patents

耙草附件、耙草机及花园工具

Info

Publication number
WO2025246778A1
WO2025246778A1 PCT/CN2025/091917 CN2025091917W WO2025246778A1 WO 2025246778 A1 WO2025246778 A1 WO 2025246778A1 CN 2025091917 W CN2025091917 W CN 2025091917W WO 2025246778 A1 WO2025246778 A1 WO 2025246778A1
Authority
WO
WIPO (PCT)
Prior art keywords
pulley
tool
holder shaft
shaft
blade holder
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
PCT/CN2025/091917
Other languages
English (en)
French (fr)
Inventor
谢红瑶
山冈敏成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Chervon Industry Co Ltd
Original Assignee
Nanjing Chervon Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202421209773.6U external-priority patent/CN222396210U/zh
Priority claimed from CN202410678883.5A external-priority patent/CN121080231A/zh
Priority claimed from CN202410678899.6A external-priority patent/CN121080232A/zh
Application filed by Nanjing Chervon Industry Co Ltd filed Critical Nanjing Chervon Industry Co Ltd
Publication of WO2025246778A1 publication Critical patent/WO2025246778A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/42—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a horizontal axis, e.g. cutting-cylinders
    • A01D34/52—Cutting apparatus

Definitions

  • This application relates to the field of power tool technology, specifically to garden tools, particularly multi-head tools and hay-raking attachments and hay-raking machines.
  • Garden tools including lawnmowers and multi-head tools, typically consist of a motor, a transmission mechanism, and working components.
  • the motor drives the working components through the transmission mechanism.
  • the transmission mechanism generates heat. If this heat cannot be dissipated effectively, it can shorten the lifespan of the garden tools or even cause them to overheat and break down.
  • Related technologies often incorporate cooling systems for garden tools, but this not only increases manufacturing costs but also leads to a larger tool size, reducing the user experience.
  • Multi-head garden tools are popular in the market.
  • a multi-head tool consists of a power unit that can be equipped with various attachments, such as pruning attachments, rake attachments, and tilling attachments.
  • various attachments such as pruning attachments, rake attachments, and tilling attachments.
  • rake attachments used on multi-head tools often suffer from weed leakage in the width direction when rakeing.
  • these rake attachments are often limited in function and fail to meet user needs.
  • One object of this application is to solve or at least alleviate some or all of the aforementioned problems. Therefore, one object of this application is to provide a hay rake attachment capable of solving the problem of hay leakage in the width direction.
  • a grass-raking attachment comprising: a first connecting part configured to connect to the body of a multi-head tool; a blade holder shaft; a cutting assembly mounted on the blade holder shaft, the cutting assembly being configured to rotate synchronously with the blade holder shaft; and a transmission device configured to couple with the blade holder shaft and drive the blade holder shaft to rotate, the transmission device being disposed at one end of the blade holder shaft.
  • the cutting assembly includes a plurality of roller blades, which are sequentially mounted on the blade holder shaft.
  • the cutting assembly includes a plurality of torsion spring assemblies, which are sequentially sleeved on the tool holder shaft.
  • the torsion spring assembly includes a torsion spring seat and a torsion spring, the torsion spring seat being sleeved on the tool holder shaft, and the torsion spring being detachably connected to the torsion spring seat.
  • the transmission device employs a belt drive.
  • the transmission device includes a first pulley, a second pulley, and a belt.
  • the first pulley is configured to be directly or indirectly coupled to the output shaft of the motor
  • the second pulley is coupled to the tool holder shaft
  • the belt is sleeved on the first pulley and the second pulley.
  • the first pulley includes a first fan-blade structure, which drives airflow when the first pulley rotates;
  • the second pulley includes a second fan blade structure.
  • the second fan blade structure drives the airflow.
  • the hay-raking attachment also includes wheels, and the multi-head tool is a push-type multi-head tool.
  • the tool post shaft is connected to a wheel and its relative height is adjustable, so that the height of the tool post shaft relative to the ground is adjustable.
  • the hay-raking attachment also includes a protective cover, which is a flip-over hay-draining baffle.
  • a grass-raking attachment comprising: a first connecting part configured to connect to the body of a multi-head tool; at least one blade holder shaft; a cutting assembly comprising multiple cutting elements, the multiple cutting elements being sequentially mounted on at least one blade holder shaft, the cutting assembly being configured to rotate synchronously with at least one blade holder shaft; the maximum distance between two adjacent cutting elements is less than or equal to 4 cm.
  • the cutting element is a roller blade, which is sleeved on the blade holder shaft.
  • the cutting element is a torsion spring assembly, which is sleeved on the tool holder shaft.
  • the torsion spring assembly includes a torsion spring seat and a torsion spring, the torsion spring seat being sleeved on the tool holder shaft, and the torsion spring being detachably connected to the torsion spring seat.
  • the hay-raking attachment further includes a transmission device configured to couple with and drive the blade holder shaft to rotate, the transmission device being disposed at one end of the blade holder shaft.
  • the transmission device includes a first pulley, a second pulley, and a belt.
  • the first pulley is configured to be directly or intermittently coupled to the output shaft of the motor
  • the second pulley is coupled to the tool holder shaft
  • the belt is sleeved on the first pulley and the second pulley.
  • the second pulley includes a second fan blade structure.
  • the second fan blade structure drives the airflow.
  • the hay-raking attachment also includes wheels, and the multi-head tool is a push-type multi-head tool.
  • the hay-raking attachment further includes a height adjustment mechanism configured to make the height of the blade holder shaft relative to the ground adjustable.
  • the hay-raking attachment also includes a protective cover, which is a flip-over hay-draining baffle.
  • a garden tool comprising a grip end and a working head disposed at both ends of the garden tool.
  • the grip end includes: a grip portion configured for a user to hold; and a power supply device configured to supply power to the garden tool.
  • the working head includes: a blade holder shaft extending laterally, generally parallel to the ground; a cutting assembly mounted to the blade holder shaft, configured to rotate synchronously with the blade holder shaft; and a transmission device configured to couple with the blade holder shaft and drive the blade holder shaft to rotate, the transmission device being disposed at one end of the blade holder shaft.
  • the garden tool also includes a motor disposed at the grip end and configured to drive a transmission.
  • the gripping end and the working head are connected by a single support rod.
  • the support rod is a tubular component, and a main drive shaft passes through the support rod, which transmits the power of the motor to the transmission device.
  • the transmission device employs a belt drive.
  • the transmission device includes a first pulley, a second pulley, and a belt.
  • the first pulley is used to couple with the main drive shaft
  • the second pulley is used to couple with the tool holder shaft
  • the belt is sleeved on the first pulley and the second pulley.
  • garden tools also include a housing configured to cover and protect the working head.
  • the garden tool also includes wheels attached to both ends of the housing along its width.
  • garden tools also include a protective cover that is pivotally connected to the housing.
  • the advantage of this application is that the grass-raking attachment of this application, by setting the transmission device for driving the cutting component at one end of the blade holder shaft, or setting the distance between multiple cutting elements on the blade holder shaft to less than or equal to 4cm, ensures that the grass-raking attachment will not have the problem of grass leakage along the axial direction of the blade holder shaft when it is working.
  • a grass rake comprising: a working head, the working head including: a blade holder shaft extending laterally generally parallel to the ground; a cutting assembly mounted to the blade holder shaft, the cutting assembly configured to rotate synchronously with the blade holder shaft; a housing configured to cover and protect the working head; a motor configured to drive the blade holder shaft; a power supply device configured to at least supply power to the motor; and wheels connected to the housing; characterized in that the grass rake includes only two wheels, respectively connected to both ends of the housing along the width direction.
  • the raker also includes a grip end, including a grip portion configured for a user to hold, and a motor and power supply are disposed near the grip end.
  • the gripping end and the working head are connected by a single support rod.
  • the support rod is a tubular component, and a main drive shaft passes through the support rod, which transmits the power of the motor to the transmission device.
  • a transmission device is disposed at one end of the tool holder shaft and drives the tool holder shaft.
  • the transmission device includes a first pulley, a second pulley, and a belt.
  • the first pulley is used to couple with the main drive shaft
  • the second pulley is used to couple with the tool holder shaft
  • the belt is sleeved on the first pulley and the second pulley.
  • the working head is replaceable.
  • the relative position of the tool holder shaft and the housing is fixed.
  • the hay rake further includes a height adjustment mechanism configured to adjust the height of the blade holder shaft relative to the ground by adjusting the height of the housing relative to the wheels.
  • the hay rake also includes a protective cover that is pivotally connected to the housing.
  • the grass rake of this application by setting two wheels at both ends of the housing, can adjust the height of the blade holder shaft relative to the ground by adjusting the height of the housing relative to the wheels; in addition, space is left to facilitate the installation of a protective cover at the rear of the housing.
  • Another objective of this application is to provide a hay rake attachment with interchangeable cutting elements of different functions to achieve different purposes.
  • a grass-raking attachment comprising: a first connecting part configured to connect to the body of a multi-head tool; a blade holder shaft; a cutting assembly mounted to the blade holder shaft, at least a portion of the cutting assembly being configured to rotate synchronously with the blade holder shaft; the cutting assembly may be configured as a first cutting assembly or a second cutting assembly, at least a portion of the cutting elements of the first cutting assembly and the second cutting assembly being different.
  • both the first cutting assembly and the second cutting assembly include a removable locking element, which allows the first or second cutting assembly to be detached from the tool holder shaft when the locking element is removed.
  • the cutting element of the first cutting assembly is a roller blade, which is sleeved on the blade holder shaft.
  • the cutting element of the second cutting assembly is a torsion spring assembly, which is sleeved on the tool holder shaft.
  • the torsion spring assembly includes a torsion spring seat and a torsion spring, the torsion spring seat being sleeved on the tool holder shaft, and the torsion spring being detachably connected to the torsion spring seat.
  • the rake attachment also includes wheels, and the multi-head tool is a push-type multi-head tool.
  • the hay-raking attachment further includes a height adjustment mechanism configured to make the height of the blade holder shaft relative to the ground adjustable.
  • the hay-raking attachment further includes a height adjustment mechanism, which includes: a gear position fixedly connected to the housing of the hay-raking attachment and having multiple gear positions, wherein the relative position of the housing and the blade holder shaft is fixed; a connecting rod, one end of which is connected to a wheel and the other end of which is pivotally connected to the housing; and a handle fixedly connected to the connecting rod, wherein the handle can be selected to engage with any gear position so that the connecting rod and the wheel rotate relative to the housing and the blade holder shaft and then lock.
  • a height adjustment mechanism which includes: a gear position fixedly connected to the housing of the hay-raking attachment and having multiple gear positions, wherein the relative position of the housing and the blade holder shaft is fixed; a connecting rod, one end of which is connected to a wheel and the other end of which is pivotally connected to the housing; and a handle fixedly connected to the connecting rod, wherein the handle can be selected to engage with any gear position so that the connecting rod and the wheel rotate relative to the housing
  • the hay-raking attachment also includes a protective cover.
  • the protective cover is a flip-over grass-removing baffle.
  • the hay-raking attachment of this application is equipped with a first cutting component and a second cutting component that can be installed on the blade holder shaft, and the cutting elements of the first cutting component and the second cutting component are different. Users can choose to switch between different cutting components to meet different hay-raking needs, thereby improving the user experience.
  • Another object of this application is to provide a garden tool whose transmission device can drive airflow to cool itself when in operation.
  • a garden tool comprising: a motor and a working component driven by the motor; a transmission device configured to be directly or indirectly coupled to the output shaft of the working component and the motor respectively, driving the working component to move under the drive of the motor, the transmission device including a transmission wheel; the transmission wheel including a fan blade structure, the transmission wheel can drive airflow when rotating.
  • each drive wheel includes an inner ring and an outer ring, with the fan blade structure evenly distributed between the inner and outer rings.
  • the transmission device is at least partially disposed within the first cavity, and the fan blade structure can drive the airflow within the first cavity and form a first air path.
  • the transmission device is at least partially disposed in the first cavity
  • the garden tool also includes a gearbox that is directly or indirectly coupled to the output shaft of the motor and the input end of the transmission device, respectively.
  • the gearbox is disposed in the second cavity; the fan blade structure breaks through the partition between the second cavity and the first cavity and forms a second air passage.
  • the transmission wheel includes a first pulley and a second pulley, the first pulley being directly or indirectly coupled to the output shaft of the motor, and the transmission device also includes a belt, which is sleeved on the first pulley and the second pulley.
  • the working components include a tool holder shaft and a cutting assembly, the tool holder shaft rotating following a second pulley driven by a belt, and at least a portion of the cutting assembly rotating with the tool holder shaft.
  • the garden tool also includes a tensioning mechanism configured to keep the belt taut at all times.
  • the tensioning mechanism includes: an elastic element, one end of which is fixedly mounted relative to the working component; a tensioning component, the first end of which is pivotally connected relative to the working component, the second end of which is connected to the other end of the elastic element, and the third end of which presses against the belt.
  • the first end, the second end, and the third end are not collinear, and the elastic element is always in an elastic deformation state to tension the belt.
  • the garden tool is a lawn rake.
  • the garden tool is a multi-head tool, which includes a body and a working head detachably connected to the body, with a transmission mechanism disposed on the working head.
  • the garden tool of this application by forming a fan blade structure directly on the transmission wheel, enables the transmission wheel to drive airflow when it rotates.
  • the flowing air can dissipate heat from the transmission device, preventing the transmission device from being shortened or damaged, and does not increase the number of parts in the garden tool, thus avoiding an increase in the cost and size of the garden tool and improving the user experience.
  • Figure 1 is a structural schematic diagram of a multi-head tool provided in a specific embodiment of this application;
  • Figure 2 is a structural schematic diagram of the multi-head tool in Figure 1 from another perspective;
  • Figure 3 is a partial structural schematic diagram of a hay rake attachment equipped with a torsion spring assembly provided in a specific embodiment of this application.
  • Figure 4 is a front view of the hay rake attachment in Figure 3;
  • Figure 5 is an isometric view of a grass-raking attachment provided in a specific embodiment of this application.
  • Figure 6 is a side view of the hay rake attachment in Figure 5;
  • Figure 7 is a structural schematic diagram of the first pulley provided in a specific embodiment of this application.
  • Figure 8 is a structural schematic diagram of the second pulley provided in a specific embodiment of this application.
  • Figure 9 is a partial structural schematic diagram of a grass-raking attachment equipped with roller blades provided in a specific embodiment of this application.
  • Figure 10 is a front view of the hay rake attachment in Figure 9;
  • Figure 11 is a structural schematic diagram of the torsion spring assembly provided in a specific embodiment of this application.
  • Figure 12 is a schematic diagram of the torsion spring provided in a specific embodiment of this application.
  • Figure 13 is an enlarged view of point A in Figure 1;
  • Figure 14 is a structural schematic diagram of the blade holder shaft of the grass-raking attachment provided in a specific embodiment of this application at a certain height;
  • Figure 15 is a schematic diagram showing the result of the rake attachment shaft at another height according to a specific embodiment of this application.
  • the term "and/or” describes the relationship between related objects, indicating that three relationships can exist.
  • a and/or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone.
  • the character "/" in this application generally indicates that the preceding and following related objects have an "and/or" relationship.
  • connection can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation.
  • a direct connection refers to two parts or components being connected together without the need for an intermediary
  • an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary.
  • connection and “coupling” are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.
  • relative terms e.g., “about,” “approximately,” “basically,” etc.
  • relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc.
  • Such terms should also be considered as disclosing a range defined by the absolute values of the two endpoints.
  • Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value.
  • Numerical values not using relative terms should also be disclosed as specific values with tolerances.
  • “basically” when expressing relative angular relationships e.g., substantially parallel, substantially perpendicular
  • a component can be performed by one component, multiple components, one part, or multiple parts.
  • the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.
  • This application provides a garden tool, which can be a lawn rake or a multi-head tool.
  • a garden tool which can be a lawn rake or a multi-head tool.
  • the following embodiments use a hand-push multi-head tool as an example.
  • the multi-head tool includes a main body 200 and multiple different working heads. Different working heads can be selectively mounted on the main body 200, allowing the multi-head tool to perform different functions.
  • the main body 200 is held by the user to move the working heads relative to the ground.
  • the working heads can be a grass-raking attachment 100, a snow-shoveling attachment, a pruning attachment, etc.
  • the grass-raking attachment 100 is used as an example for explanation.
  • the main body 200 of the multi-head tool includes a power supply 201, a first grip 202, an operation switch 203, and a motor 204.
  • the power supply 201 supplies power to the motor 204.
  • the power supply 201 may be a removable battery pack installed in the battery pack interface of the multi-head tool. In some embodiments, the power supply 201 provides a maximum voltage of 56V.
  • the motor 204 is housed within the casing of the main body 200, and its maximum speed can reach 3500 r/min.
  • the first grip 202 is for the user to hold, and the operation switch 203 is for user operation. In some embodiments, the operation switch 203 is located on or near the first grip 202, allowing the user to hold and operate with one hand.
  • the multi-head tool also includes a speed regulator, which may be located near the operation switch 203.
  • the main body 200 also includes a second grip 205. The first grip 202 and the second grip 205 can be held by the user's hands respectively, thereby ensuring the stability of the multi-head tool during operation.
  • the grip end and the working head are respectively located at opposite ends of the multi-head tool (lawn rake/garden tool).
  • the power supply 201, first grip 202, motor 204, and second grip 205 are all uniformly located at the grip end. Positioning the power supply 201 at the end furthest from the working head facilitates disassembly and replacement. Furthermore, when the grass rake attachment 100 operates, it exerts a force on the main body 200. The heavier power supply 201, located at the end furthest from the grass rake attachment 100, helps balance this force, preventing excessive vibration during gripping and improving the user experience. It should be noted that the grip end and the working head are connected by a rod, which supports and connects the power supply 201, first grip 202, operating switch 203, motor 204, etc.
  • the hay-raking attachment 100 includes a first connecting part 10, and the main body 200 includes a second connecting part 206.
  • the first connecting part 10 is configured to connect with the second connecting part 206.
  • the connection between the hay-raking attachment 100 and the main body 200 includes, but is not limited to, mechanical structural connections, power transmission, and electrical connections.
  • the mechanical structural connections include the connection of supporting components;
  • the power transmission refers to the transmission connection between the output shaft of the motor 204 and the transmission structure of the hay-raking attachment 100;
  • the electrical connections include the electrical connections of the detection elements and lighting on the hay-raking attachment 100 to the operating switch 203 and the power supply device 201, respectively.
  • the first connecting part 10 includes a support rod 11 and a main drive shaft 12.
  • the support rod 11 is a tubular component, and the main drive shaft 12 passes through the support rod 11, allowing the main drive shaft 12 to rotate relative to the support rod 11 around its own axial direction.
  • the support rod 11 is connected to the housing structure of the main body 200, and the main drive shaft 12 is directly or indirectly connected to the output end of the motor 204.
  • one end of the main drive shaft 12 near the main body 200 extends to the outside of the support rod 11, thereby facilitating the connection with the output end of the motor 204.
  • the main body 200 of the multi-head tool does not have a motor 204; instead, the motor 204 is mounted on the working head.
  • This type of multi-head tool allows for the configuration of a motor 204 with corresponding performance based on the actual working requirements of the working head.
  • the connection between the first connecting part 10 and the second connecting part 206 does not involve the transmission of power.
  • the hay-raking attachment 100 also includes a support structure, a blade holder shaft 20, a cutting assembly 30, and a transmission device 40.
  • the support structure is connected to the first connecting part 10 and is configured to support the various components of the hay-raking attachment 100.
  • the blade holder shaft 20 is rotatably mounted on the support structure, and the cutting assembly 30 is mounted on the blade holder shaft 20, rotating synchronously with it.
  • the transmission device 40 is also mounted on the support structure.
  • the input end of the transmission device 40 is directly or indirectly coupled to the first connecting part 10, and the output end is coupled to the blade holder shaft 20. Under the action of the motor 204, the first connecting part 10 drives the transmission device 40 to operate, which in turn drives the blade holder shaft 20 to rotate.
  • the blade holder shaft 20 then drives the cutting assembly 30 to rotate, thereby performing operations on the ground.
  • the blade holder shaft 20 extends laterally. Specifically, lateral extension means that when the hay-raking attachment 100 is working, the blade holder shaft 20 is approximately parallel to the ground.
  • the hay-raking attachment 100 also includes wheels 50, which are connected to a support mechanism. When the user pushes the hay-raking attachment 100 through the main body 200, the wheels 50 reduce the resistance to the forward movement of the hay-raking attachment 100, thereby saving effort and improving the user experience.
  • the hay-raking attachment 100 may also be equipped with a drive source for the wheels 50, using the power of this drive source to replace manual driving of the wheels 50, thereby further improving the user experience.
  • the drive source can be electrically connected to the power supply device 201 of the main body 200 through the engagement of the first coupling 10 and the second coupling 206.
  • the support structure includes a housing 60, which protects the blade holder shaft 20, the transmission device 40, and at least part of the cutting assembly 30.
  • the first connecting part 10 is connected to the housing 60.
  • the connection point between the first connecting part 10 and the housing 60 is located at the middle of the rake attachment 100 along its width, thereby making the rake attachment 100 more evenly stressed.
  • Two wheels 50 are connected to the housing 60, each connected to one end of the housing 60 along its width. In other embodiments, three, four, or more wheels 50 may be provided; no specific limitation is made here.
  • the housing 60 covers the upper area of the cutting component 30, thereby preventing the user from being accidentally injured by the cutting component 30 or flying stones.
  • the lowest point of the housing 60 is a certain distance from the ground.
  • the housing 60 does not contact the ground, which can prevent wear and tear; on the other hand, the housing 60 can block obstacles such as large stones, preventing these obstacles from causing accidental damage to the cutting component 30.
  • the hay-raking attachment 100 also includes a protective cover 63.
  • the protective cover 63 is located on the side of the hay-raking attachment 100 facing the user, and it prevents the cutting component 30 from causing injury to the user.
  • the protective cover 63 is a flip-over hay-discharging baffle.
  • the protective cover 63 is pivotally connected to the housing 60.
  • the end of the protective cover 63 near the ground is made of a flexible material.
  • This flexible part can buffer and block granular objects such as stones, preventing stones from flying and injuring the user, thus improving the safety of the hay-raking attachment 100.
  • the flexible material can be a rubber pad, plastic with strong elastic deformation capability, etc.
  • the transmission device 40 is disposed at one end of the blade holder shaft 20.
  • the cutting assembly 30 mounted on the blade holder shaft 20 can be prevented from being interrupted along the axial direction of the blade holder shaft 20 by the transmission device 40, thereby preventing the problem of grass leakage along the axial direction of the blade holder shaft 20 when the grass-raking attachment 100 is working, and improving the grass-raking effect of the grass-raking attachment 100.
  • the cutting assembly 30 includes multiple cutting elements, which are sequentially mounted on the blade holder shaft 20.
  • the maximum distance between two adjacent cutting elements is less than or equal to 4 cm. This arrangement also prevents grass leakage along the axial direction of the blade holder shaft 20 during operation, improving the user experience.
  • the distance between two adjacent cutting elements can be 0, 1 cm, 2 cm, 3 cm, 4 cm, etc., and is not specifically limited here.
  • the hay-raking attachment 100 also includes a gearbox 81 and a secondary drive shaft 82.
  • the input end of the gearbox 81 is directly or indirectly coupled to the main drive shaft 12, and the output end of the gearbox 81 is directly or indirectly coupled to one end of the secondary drive shaft 82.
  • the other end of the secondary drive shaft 82 is connected to the input end of the transmission device 40.
  • the secondary drive shaft 82 is approximately parallel to the blade holder shaft 20.
  • the gearbox 81 can reduce the rotational motion output by the motor 204, ensuring that the blade holder shaft 20 rotates at a suitable speed.
  • the secondary drive shaft 82 can transmit the rotational motion to the end of the blade holder shaft 20, thus realizing the design of arranging the transmission device 40 at one end of the blade holder shaft 20.
  • the gearbox 81 is mounted on the support structure of the hay rake, and the secondary drive shaft 82 is rotatably mounted on the support structure.
  • the support structure also includes a partition 64, which is disposed inside the housing 60 and forms a first cavity 61 and a second cavity 62 for the rake attachment 100.
  • the transmission device 40 is at least partially disposed within the first cavity 61, while the gearbox 81 and the auxiliary drive shaft 82 are disposed within the second cavity 62.
  • the transmission device 40 is a belt drive.
  • Belt drives offer good flexibility, mitigating impacts and absorbing vibrations, thereby reducing the vibrations transmitted to the main body 200 when the hay rake attachment 100 is working, and improving the user experience.
  • the transmission device 40 includes a first pulley 41, a second pulley 42, and a belt 43.
  • the first pulley 41 is directly or indirectly coupled to the output shaft of the motor 204
  • the second pulley 42 is coupled to the blade holder shaft 20
  • the belt 43 is sleeved on the first pulley 41 and the second pulley 42.
  • both the first pulley 41 and the second pulley 42 are rotatably mounted on the partition plate 64.
  • the first pulley 41 is connected to the auxiliary transmission shaft 82 and rotates synchronously
  • the second pulley 42 is connected to the blade holder shaft 20 and rotates synchronously.
  • both the first pulley 41 and the second pulley 42 are wedge pulleys, and the belt 43 is a wedge belt.
  • the combination of the wedge belt and the wedge pulley can not only transmit greater power, but also result in less vibration and smoother operation.
  • the first pulley 41 and the second pulley 42 can be ordinary pulleys, and the belt 43 can be an ordinary belt 43.
  • the garden tool also includes a tensioning mechanism 90, configured to keep the belt 43 constantly taut, thereby preventing transmission failure.
  • the tensioning mechanism 90 includes an elastic element 91 and a tensioning assembly 92.
  • One end of the elastic element 91 is connected to the support structure, i.e., it is fixedly installed relative to the working components (tool holder shaft 20 and cutting assembly 30).
  • the tensioning assembly 92 includes three connecting ends: a first end 923, a second end 924, and a third end 925.
  • the first end 923, the second end 924, and the third end 925 are not collinear.
  • the first end 923 is pivotally connected to the support structure, the second end 924 is connected to the other end of the elastic element 91, and the third end 925 presses against the belt 43.
  • the elastic element 91 is always in an elastic deformation state to keep the belt 43 tensioned.
  • the tensioning assembly 92 presses against the belt 43, the elastic element 91 maintains a certain amount of deformation. After the belt 43 loosens due to long-term use, its constraint force on the elastic element 91 decreases, and the elastic element 91 releases a certain amount of deformation (i.e., the deformation decreases), thereby causing the tensioning assembly 92 to rotate around its first end 923. During the rotation around the first end 923, the second end 924 of the tensioning assembly 92 further presses against the belt 43, thereby keeping the belt 43 taut.
  • the first end 923 of the tensioning assembly 92 is pivotally connected to the partition 64, and one end of the elastic element 91 is fixedly connected to the partition 64.
  • the connection structure between the elastic element 91 and the partition 64 can be flexibly set as needed and is not limited here.
  • the tensioning assembly 92 includes a connector 921 and a pressure wheel 922.
  • the connector 921 is pivotally connected to the partition 64, and this pivotal position constitutes a first end 923 of the tensioning assembly 92.
  • An elastic member 91 is connected to the connector 921, and this connection position constitutes a second end 924 of the tensioning assembly 92.
  • the pressure wheel 922 is connected to the connector 921 and can rotate relative to the connector 921, and the pressure wheel 922 constitutes a third end 925 of the tensioning assembly 92.
  • the pressure wheel 922 presses against the belt 43, thereby making the fit between the tensioning assembly 92 and the belt 43 a rolling fit, which can reduce the wear of the belt 43 and improve the service life of the transmission device 40.
  • the tensioning assembly 92 is arranged on the outside of the belt 43 to ensure that the belt 43 has a sufficiently large wrap angle with the first pulley 41 and the second pulley 42, thereby ensuring the reliability of the transmission.
  • the tensioning assembly 92 may also be arranged on the inside of the belt 43.
  • the hay-raking attachment 100 may also be provided with two, three or more tensioning mechanisms 90.
  • the transmission device 40 may also be a gear drive or a chain drive.
  • the transmission device 40 includes a first gear directly or indirectly coupled to the output shaft of the motor 204, and a second gear directly or indirectly coupled to the tool holder shaft 20, with the first gear and second gear meshing directly or indirectly.
  • the transmission device 40 includes a first sprocket directly or indirectly coupled to the output shaft of the motor 204, a second sprocket directly or indirectly coupled to the tool holder shaft 20, and a chain that drives and engages with both the first and second sprockets.
  • the first pulley, second pulley, first gear, second gear, first sprocket, and second sprocket can all be collectively referred to as transmission wheels.
  • the transmission mechanism 40 When garden tools are in use for extended periods, the transmission mechanism 40 generates heat. If this heat cannot be dissipated in time, it may reduce the lifespan of the garden tools or even cause them to be damaged due to overheating.
  • Related technologies typically equip garden tools with cooling systems, which not only increases manufacturing costs but also leads to a larger tool size, thus reducing the user experience.
  • the transmission wheel of the transmission device 40 includes a fan-blade structure, which drives airflow when rotating.
  • the airflow generated by the synchronous rotation of the fan-blade structure can dissipate heat from the transmission device 40 or other structures of the rake attachment 100. This prevents the transmission device 40 from being damaged due to overheating, and without adding extra parts, it reduces manufacturing costs and keeps the garden tool compact.
  • each transmission wheel includes an inner ring and an outer ring, with the fan-blade structure evenly distributed between the inner and outer rings, thus forming an axial flow fan.
  • the first pulley 41 includes a first outer ring 412, a first inner ring 411, and multiple first fan-blade structures 413, which are evenly distributed between the first outer ring 412 and the first inner ring 411.
  • the first inner ring 411 is connected to the blade holder shaft 20, and the first outer ring 412 is engaged with the belt 43.
  • the first fan-blade structures 413 can drive the airflow in the first cavity 61 and form a first air path.
  • the first air path can dissipate heat from the transmission device 40 and other structures disposed in the first cavity 61.
  • the first cavity 61 is not a sealed cavity, that is, the first cavity 61 is connected to the outside of the hay-raking attachment 100, thereby ensuring that the hot air in the first cavity 61 can circulate with the normal temperature air outside the hay-raking attachment 100, and thus better dissipate heat from the structures in the first cavity 61.
  • the first cavity 61 can be connected to the outside by providing an opening in the housing 60, or by relying solely on the gaps in the housing 60 itself.
  • the second pulley 42 includes a second outer ring 422, a second inner ring 421, and multiple second fan-blade structures 423, which are evenly distributed between the second outer ring 422 and the second inner ring 421.
  • the second fan-blade structures 423 drive airflow.
  • the second fan-blade structures 423 connect the first cavity 61 and the second cavity 62.
  • the second pulley 42 rotates, it can drive airflow between the first cavity 61 and the second cavity 62.
  • the airflow flowing in the second cavity 62 can cool the auxiliary drive shaft 82, gearbox 81, and other structures, preventing damage to the gearbox 81 and auxiliary drive shaft 82 due to overheating.
  • the partition 64 is provided with an opening opposite to the second fan-blade structures 423, thereby connecting the first cavity 61 and the second cavity 62.
  • the second cavity 62 can also be configured to communicate with the outside of the hay-raking attachment 100, thereby facilitating the circulation of hot air in the first cavity 61 and the second cavity 62 with the outside ambient air and improving the cooling effect.
  • the hay-raking attachment 100 installed on multi-head tools has a single function when hay-raking, which is difficult to meet user needs. Therefore, in this embodiment, the cutting component 30 of the hay-raking attachment 100 can be configured as a first cutting component or a second cutting component, with different cutting elements in the first and second cutting components. Users can choose to switch between different cutting components 30, allowing the hay-raking attachment 100 to meet different hay-raking needs and improving the user experience.
  • the cutting element of the first cutting assembly is a roller blade 31, which is sleeved on the blade holder shaft 20.
  • the roller blade 31 can be used to loosen soil.
  • the rake attachment 100 includes a plurality of roller blades 31, which are arranged sequentially along the axial direction of the blade holder shaft 20.
  • the portion of the tool holder shaft 20 configured for the roller blade 31 to be fitted is defined as the fitting portion.
  • the cross-section of the fitting portion is non-circular, and the shape and size of the hole in the roller blade 31 for fitting the tool holder shaft 20 are the same as those of the fitting portion. This non-circular fit achieves circumferential positioning between the tool holder shaft 20 and the roller blade 31, thereby ensuring that the roller blade 31 can rotate synchronously with the tool holder shaft 20.
  • the cross-section of the tool holder shaft 20 in the fitting portion can be hexagonal. In other embodiments, the cross-section of the tool holder shaft 20 in the fitting portion can also be quadrilateral, octagonal, etc., and is not specifically limited here.
  • the support structure also includes a detachable locking member 33.
  • the locking member 33 When the locking member 33 is removed, the first cutting assembly can be detached from the blade holder shaft 20.
  • the roller blade 31 located at one end of the blade holder shaft 20 can be axially limited by an annular boss or other structure located on the blade holder shaft 20, and the roller blade 31 located at the other end of the blade holder shaft 20 is axially limited by the locking member 33.
  • the locking member 33 includes an arc-shaped clamp 331 and a fastener 332.
  • the support structure (such as the housing 60) of the rake attachment 100 is provided with an arc-shaped groove.
  • the arc-shaped groove and the arc-shaped clamp 331 form a cylindrical mating position.
  • the end of the blade holder shaft 20 is located in the cylindrical mating position and can rotate within the cylindrical mating position, thereby achieving support for the end of the blade holder shaft 20 and axial limitation for the roller blades 31.
  • the fastener 332 can be a bolt, which is simple in structure and easy to assemble and disassemble.
  • both the arc-shaped clamp 331 and the arc-shaped groove are semi-circular arcs.
  • one of the arc-shaped clamp 331 and the arc-shaped groove is a major arc and the other is a minor arc, and the sum of the corresponding central angles is not greater than 180°.
  • a bearing is also sleeved on the tool holder shaft 20. The bearing is clamped in the cylindrical mating position formed by the arc-shaped clamp 331 and the arc-shaped groove, and the bearing can ensure the smooth rotation of the tool holder shaft 20.
  • the cutting element of the second cutting assembly is a torsion spring assembly 32, which is sleeved on the blade holder shaft 20 and is used for raking grass.
  • the raking attachment 100 includes multiple torsion spring assemblies 32, which are arranged sequentially along the axial direction of the blade holder shaft 20.
  • the portion of the tool holder shaft 20 for the torsion spring assembly 32 to be fitted is defined as the fitting portion.
  • the cross-section of the fitting portion is non-circular, as shown in Figure 11.
  • the shape and size of the mating hole 3211 of the torsion spring assembly 32 for fitting the tool holder shaft 20 are the same as those of the fitting portion.
  • the non-circular mating method achieves circumferential positioning between the tool holder shaft 20 and the torsion spring assembly 32, thereby ensuring that the torsion spring assembly 32 can rotate synchronously with the tool holder shaft 20.
  • both the cross-section of the fitting portion and the shape of the mating hole 3211 of the tool holder shaft 20 are hexagonal.
  • the shape of the cross-section of the tool holder shaft 20 in the fitting portion i.e., the mating hole 3211, can also be set to quadrilateral, octagonal, etc., without specific limitation here.
  • the torsion spring assembly 32 located at one end of the tool holder shaft 20 can be axially limited by an annular boss or other structure located on the tool holder shaft 20, and the torsion spring assembly 32 located at the other end of the tool holder shaft 20 is axially limited by a locking member 33.
  • the locking member 33 is removed, all the torsion spring assemblies 32 can be detached from the end of the tool holder shaft 20 where the locking member 33 is located.
  • different cutting assemblies may only have some different cutting elements.
  • the third cutting assembly is composed of a roller blade 31 and a torsion spring assembly 32, forming a mixed combination.
  • different cutting elements may also lead to different numbers of cutting elements required by the cutting assembly, different spacing between cutting elements, or different installation methods of cutting elements.
  • the torsion spring assembly 32 includes a torsion spring seat 321 and a torsion spring 322.
  • the torsion spring seat 321 is sleeved on the blade holder shaft 20, and the torsion spring 322 is detachably connected to the torsion spring seat 321. Therefore, when an individual torsion spring 322 is damaged, it is not necessary to disassemble the entire torsion spring assembly 32; only the corresponding torsion spring 322 needs to be replaced, which improves the convenience of replacing parts in the hay rake attachment 100.
  • the torsion spring seat 321 includes a seat body 3212 and a connecting portion 3213.
  • the seat body 3212 is provided with a mating hole 3211 for fitting onto the tool holder shaft 20.
  • the connecting portion 3213 is disposed on the circumferential surface of the seat body 3212, and the torsion spring 322 is detachably mounted on the connecting portion 3213.
  • the torsion spring seat 321 includes two connecting portions 3213. In other embodiments, the number of connecting portions 3213 may be one, three, or more, and each connecting portion 3213 is connected to a torsion spring 322.
  • the torsion spring 322 includes a spring body 3222 and two free ends 3221.
  • the two free ends 3221 are used for raking grass.
  • a limiting part 3223 is provided radially outward on the spring body 3222.
  • a mounting hole 32131 is provided on the end face of the connecting part 3213, which is configured for the spring body 3222 to be inserted.
  • a slot 32132 is provided on the wall of the mounting hole 32131.
  • the slot 32132 is arranged radially along the mounting hole 32131 and extends axially along the mounting hole 32131 to the end face of the connecting part 3213.
  • the slot 32132 is configured for the limiting part 3223 to be inserted.
  • a plurality of insertion holes 32133 are provided on the wall of the mounting hole 32131, which are configured for the free ends 3221 to pass through.
  • the number of insertion holes 32133 is the same as the number of free ends 3221.
  • the mounting hole 32131 is also provided with a connecting groove 32134.
  • the connecting groove 32134 starts from the end face of the connecting part 3213 and extends along the axial direction of the mounting hole 32131.
  • the connecting groove 32134 connects to a number of insertion holes 32133.
  • the torsion spring 322 When installing the torsion spring 322, press the free end 3221 and the limiting part 3223 to bring them closer (or further apart) along the circumference of the spring body 3222. At this time, the spring body 3222 is aligned with the mounting hole 32131, the limiting part 3223 is aligned with the slot 32132, and the free end 3221 is aligned with the connecting groove 32134. Then, insert the entire torsion spring 322 into the mounting hole 32131 along the axial direction of the mounting hole 32131. When the free end 3221 is aligned with the corresponding insertion hole 32133, stop pressing the free end 3221 and the limiting part 3223.
  • the working components of the rake attachment 100 are height-adjustable relative to the ground, thereby enabling the rake attachment 100 to perform its operations more effectively.
  • the height of the blade holder shaft 20 and the cutting component 30 on the blade holder shaft 20 relative to the ground is adjustable.
  • the rake attachment 100 further includes a height adjustment mechanism 70, which allows the height of the blade holder shaft 20 relative to the ground to be adjusted. Specifically, the relative position of the blade holder shaft 20 and the housing 60 is fixed, the wheel 50 remains in contact with the ground, and the height adjustment mechanism 70 is directly or indirectly connected to the wheel 50 and the housing 60, respectively.
  • the height adjustment mechanism 70 adjusts the height of the blade holder shaft 20 relative to the ground by adjusting the height of the housing 60 relative to the wheel 50.
  • the housing 60 is concealed in Figures 14 and 15.
  • the height adjustment mechanism 70 includes a gear shift 71, a connecting rod 72, and a handle 73.
  • the gear shift 71 is fixedly connected to the housing 60 of the hay rake attachment 100, and has multiple gear positions 711.
  • the first end of the connecting rod 72 is connected to the wheel 50, and the second end of the connecting rod 72 is pivotally connected to the housing 60 (the pivot point is point B in Figure 14), meaning that the connecting rod 72 can rotate relative to the housing 60 around point B.
  • the handle 73 is fixedly connected to the connecting rod 72 and is used for user operation.
  • the user can operate the handle 73 and select any gear position 711 to rotate the connecting rod 72 and the wheel 50 relative to the housing 60 and the blade holder shaft 20, and then lock them in place. Since the height of wheel 50 relative to the ground remains constant, when housing 60 and tool holder shaft 20 rotate relative to handle 73, connecting rod 72 and wheel 50, the height of tool holder shaft 20 and housing 60 relative to the ground changes, thereby achieving height adjustment of the working component relative to the ground.
  • the gear position 711 can be a limiting hole (or limiting groove), and multiple gear positions 711 are arranged in an arc shape along a vertical plane.
  • a locking pin 731 is provided on the handle 73. When the user rotates the handle 73 relative to its second end, the locking pin 731 can engage with different limiting holes (or limiting grooves), thereby locking the position of the gear position component 71 and the handle 73, that is, locking the position of the housing 60 and the wheel 50.
  • the gear position component 71 and the locking pin 731 can be made of a material with a certain deformation capacity, such as plastic, so that the locking pin 731 can smoothly engage or disengage with the gear position 711.
  • the locking pin 731 can also be connected to the handle 73 through an elastic component.
  • the locking pin 731 overcomes the force of the elastic component and disengages from the limiting hole under the action of external force.
  • the gear position 711 can also be provided with a protruding structure.
  • the handle 73 is provided with a limiting hole. When the limiting hole engages with different protruding structures, the height of the tool holder shaft 20 can be adjusted.
  • the hay rake attachment 100 is provided with the above-mentioned height adjustment mechanism 70 at one end along the width direction, and only the connecting rod 72 is provided at the other end.
  • the connecting rod 72 and the connecting rod 72 of the height adjustment mechanism 70 are respectively connected to the two ends of the connecting rod 51.
  • height adjustment components may be provided at both wheels 50.
  • the connecting rods 72 of the two height adjustment components are pivotally connected to the housing 60.
  • the height of the housing 60 and the tool holder shaft 20 relative to the ground is adjusted at both ends along the width direction.

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Abstract

一种耙草附件(100)，包括：第一结合部(10)，配置为结合至多头工具的主体；刀架轴(20)；切割组件(30)，安装至所述刀架轴(20)上，所述切割组件(30)配置为与所述刀架轴(20)同步旋转；以及传动装置(40)，配置为与所述刀架轴(20)耦合，并驱动所述刀架轴(20)旋转，所述传动装置(40)设置于所述刀架轴(20)的一端。

Description

耙草附件、耙草机及花园工具
本申请要求在2024年5月29日提交中国专利局、申请号为202410678883.5的中国专利申请的优先权，要求在2024年5月29日提交中国专利局、申请号为202421209773.6的中国专利申请的优先权，要求在2024年5月29日提交中国专利局、申请号为202410678899.6的中国专利申请的优先权，以上申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及电动工具技术领域，具体涉及花园工具，特别是多头工具与耙草附件、耙草机。
背景技术
花园工具包括耙草机、多头工具等，其通常包括电机、传动装置和工作组件，电机通过传动组件驱动工作组件动作。但是，在花园工具长时间运行的状态下，传动装置会产生热量，若热量不能及时散出，可能会降低花园工具的寿命，甚至因为过热而损坏。相关技术中，通常为花园工具配置散热系统，不仅增加了制造成本，且导致花园工具的体积增加，降低了用户使用体验。
作为花园工具的一种，多头工具在市场上备受欢迎。通常情况下，多头工具的主体包括动力装置，该动力装置可以搭配多种附件进行工作，例如搭配剪枝附件、耙草附件、中耕附件等使用。但是相关技术中，用于安装在多头工具上的耙草附件在耙草时，在宽度方向存在漏草的问题。且用于安装在多头工具上的耙草附件在耙草时功能单一，难以满足用户使用需求。
本部分提供了与本申请相关的背景信息，这些背景信息不一定是现有技术。
发明内容
本申请的一个目的是解决或至少减轻上述问题的一部分或者全部。为此，本申请的一个目的在于提供一种耙草附件，能够解决其在宽度方向存在漏草的问题。
为了实现上述目标，本申请采用如下的技术方案：一种耙草附件，包括：第一结合部，配置为结合至多头工具的主体；刀架轴；切割组件，安装至刀架轴上，切割组件配置为与刀架轴同步旋转；以及传动装置，配置为与刀架轴耦合，并驱动刀架轴旋转，传动装置设置于刀架轴的一端。
在一些实施例中，切割组件包括多个滚筒刀片，多个滚筒刀片依次套设于刀架轴上。
在一些实施例中，切割组件包括多个扭簧组件，多个扭簧组件依次套设于刀架轴上。
在一些实施例中，扭簧组件包括扭簧座和扭簧，扭簧座套设于刀架轴上，扭簧与扭簧座可拆卸连接。
在一些实施例中，传动装置采用带传动。
在一些实施例中，传动装置包括第一皮带轮、第二皮带轮和皮带，第一皮带轮配置为与电机的输出轴直接或间接耦合，第二皮带轮与刀架轴耦合，皮带套设于第一皮带轮和第二皮带轮。
在一些实施例中，第一皮带轮包括第一扇叶结构，第一皮带轮转动时，第一扇叶结构带动空气流动；和/或
第二皮带轮包括第二扇叶结构，第二皮带轮转动时，第二扇叶结构带动空气流动。
在一些实施例中，耙草附件还包括轮子，多头工具为手推式多头工具。
在一些实施例中，刀架轴与轮子连接且相对高度可调，以使刀架轴相对于地面的高度可调。
在一些实施例中，耙草附件还包括保护罩，保护罩为翻转排草挡板。
为了实现上述目标，本申请采用如下的技术方案：一种耙草附件，包括：第一结合部，配置为结合至多头工具的主体；至少一个刀架轴；切割组件，包括多个切割元件，多个切割元件依次安装在至少一个刀架轴上，切割组件配置为与至少一个刀架轴同步旋转；相邻的两个切割元件之间的距离的最大值小于或等于4cm。
在一些实施例中，切割元件为滚筒刀片，滚筒刀片套设于刀架轴。
在一些实施例中，切割元件为扭簧组件，扭簧组件套设于刀架轴。
在一些实施例中，扭簧组件包括扭簧座和扭簧，扭簧座套设于刀架轴上，扭簧与扭簧座可拆卸连接。
在一些实施例中，耙草附件还包括传动装置，传动装置配置为与刀架轴耦合，并驱动刀架轴旋转，传动装置设置在刀架轴的一端。
在一些实施例中，传动装置包括第一皮带轮、第二皮带轮和皮带，第一皮带轮配置为与电机的输出轴直接或间隔耦合，第二皮带轮与刀架轴耦合，皮带套设于第一皮带轮和第二皮带轮。
在一些实施例中，第一皮带轮包括第一扇叶结构，第一皮带轮转动时，第一扇叶结构带动空气流动。
在一些实施例中，第二皮带轮包括第二扇叶结构第二皮带轮转动时，第二扇叶结构带动空气流动。
在一些实施例中，耙草附件还包括轮子，多头工具为手推式多头工具。
在一些实施例中，耙草附件还包括调高机构，调高机构配置为使刀架轴相对于地面的高度可调。
在一些实施例中，耙草附件还包括保护罩，保护罩为翻转排草挡板。
为了实现上述目标，本申请采用如下的技术方案：一种花园工具，包括设置于花园工具的两头的握持端和工作头。握持端包括：握持部，配置为供用户握持；和电源装置，配置为给花园工具供电。工作头包括：刀架轴，大致平行于地面横向延伸；切割组件，安装至刀架轴，切割组件配置为与刀架轴同步旋转；和传动装置，配置为与刀架轴耦合，并驱动刀架轴旋转，传动装置设置于刀架轴的一端。
在一些实施例中，花园工具还包括电机，电机设置在握持端，配置为驱动传动装置。
在一些实施例中，握持端和工作头通过单个支撑杆连接。
在一些实施例中，支撑杆为管状部件，支撑杆内穿设有主传动轴，主传动轴将电机的动力传递给传动装置。
在一些实施例中，传动装置采用带传动。
在一些实施例中，传动装置包括第一皮带轮、第二皮带轮和皮带，第一皮带轮用于与主传动轴耦合，第二皮带轮与刀架轴耦合，皮带套设于第一皮带轮和第二皮带轮。
在一些实施例中，花园工具还包括壳体，配置为罩设保护工作头。
在一些实施例中，花园工具还包括轮子，连接在壳体沿宽度方向的两端。
在一些实施例中，刀架轴与轮子的相对高度可调，以使刀架轴相对于地面的高度可调。
在一些实施例中，花园工具还包括保护罩，保护罩可枢转地连接至壳体。
本申请的有益之处在于：本申请的耙草附件，通过将用于与切割组件进行传动的传动装置设在在刀架轴的一端，或者将刀架轴上的多个切割元件之间的距离设置为小于等于4cm，使耙草附件在工作时，沿刀架轴的轴向不会出现漏草的问题。
为了实现上述目标，本申请采用如下的技术方案：一种耙草机，包括：工作头，工作头包括：刀架轴，大致平行于地面横向延伸；切割组件，安装至刀架轴，切割组件配置为与刀架轴同步旋转；壳体，配置为罩设保护工作头；电机，配置为驱动刀架轴；电源装置，至少配置为给电机供电；和轮子，连接至壳体；其特征在于，耙草机仅包括两个轮子，分别连接在壳体沿宽度方向的两端。
在一些实施例中，耙草机还包括握持端，包括配置为供用户握持的握持部，且电机和电源装置靠近握持端设置。
在一些实施例中，握持端和工作头通过单个支撑杆连接。
在一些实施例中，支撑杆为管状部件，支撑杆内穿设有主传动轴，主传动轴将电机的动力传递给传动装置。
在一些实施例中，传动装置设置于刀架轴的一端，并驱动刀架轴。
在一些实施例中，传动装置包括第一皮带轮、第二皮带轮和皮带，第一皮带轮用于与主传动轴耦合，第二皮带轮与刀架轴耦合，皮带套设于第一皮带轮和第二皮带轮。
在一些实施例中，工作头可更换。
在一些实施例中，刀架轴与壳体的相对位置固定。
在一些实施例中，耙草机还包括调高机构，配置为通过调节壳体相对于轮子的高度，实现对刀架轴相对于地面的高度的调节。
在一些实施例中，耙草机还包括保护罩，保护罩可枢转地连接至壳体。
本申请的有益之处在于：本申请的耙草机，通过将两个轮子设置于壳体的两端，可以通过调节壳体相对于轮子的高度，实现对刀架轴相对于地面的高度的调节；另外，留出空间便于在壳体的后方设置保护罩。
本申请的另一个目的在于提供一种耙草附件，可更换功能不同的切割元件，以实现不同功能。
为了实现上述目标，本申请采用如下的技术方案：一种耙草附件，包括：第一结合部，配置为结合至多头工具的主体；刀架轴；切割组件，安装至刀架轴，切割组件的至少部分配置为与刀架轴同步转动；切割组件可配置为第一切割组件或第二切割组件，第一切割组件和第二切割组件的至少部分切割元件不同。
在一些实施例中，第一切割组件和第二切割组件都包括可拆卸式锁定件，锁定件移除时可将第一切割组件或第二切割组件从刀架轴上拆卸。
在一些实施例中，第一切割组件的切割元件是滚筒刀片，滚筒刀片套设在刀架轴上。
在一些实施例中，第二切割组件的切割元件是扭簧组件，扭簧组件套设在刀架轴上。
在一些实施例中，扭簧组件包括扭簧座和扭簧，扭簧座套设于刀架轴上，扭簧与扭簧座可拆卸连接。
在一些实施例中，耙草附件还包括轮子，多头工具是手推式多头工具。
在一些实施例中，耙草附件还包括调高机构，调高机构配置为使刀架轴相对于地面的高度可调节。
在一些实施例中，耙草附件还包括调高机构，调高机构包括：档位件，与耙草附件的壳体固定连接，且设置有多个档位，壳体与刀架轴的相对位置固定；连杆，一端与轮子连接，另一端与壳体枢接；手柄，与连杆固定连接，手柄能够选择与任一个档位配合，以使连杆和轮子相对于壳体和刀架轴转动后并锁定。
在一些实施例中，耙草附件还包括保护罩。
在一些实施例中，保护罩为翻转排草挡板。
本申请的有益之处在于：本申请的耙草附件，配置有能够安装在刀架轴上的第一切割组件和第二切割组件，且第一切割组件的切割元件和第二切割组件的切割元件不同，用户可以选择切换不同的切割组件，以满足不同的耙草需求，提升了用户使用体验。
本申请的另一个目的在于提供一种花园工具，其传动装置在工作时可以带动空气流动以为自身进行降温。
为了实现上述目标，本申请采用如下的技术方案：一种花园工具，包括：电机和由电机驱动的工作组件；传动装置，配置为分别与工作组件和电机的输出轴直接或间接耦合，在电机的驱动下带动工作组件运动，传动装置包括传动轮；传动轮包括扇叶结构，传动轮转动时能带动空气流动。
一些实施例中，每个传动轮包括内圈和外圈，扇叶结构均匀分布在内圈和外圈之间。
一些实施例中，传动装置至少部分设置在第一腔体内，扇叶结构能带动第一腔体内的空气流动，并形成第一风路。
一些实施例中，传动装置至少部分设置在第一腔体内，花园工具还包括齿轮箱，齿轮箱分别与电机的输出轴和传动装置的输入端直接或间接耦合，齿轮箱设置在第二腔体内；扇叶结构打通第二腔体和第一腔体之间的隔断，并形成第二风路。
一些实施例中，传动轮包括第一皮带轮和第二皮带轮，第一皮带轮与电机的输出轴直接或间接耦合，传动装置还包括皮带，皮带套设于第一皮带轮和第二皮带轮。
一些实施例中，工作组件包括刀架轴和切割组件，刀架轴跟随由皮带带动的第二皮带轮转动，切割组件的至少部分随刀架轴转动。
一些实施例中，花园工具还包括张紧机构，张紧机构配置为使皮带始终保持张紧。
一些实施例中，张紧机构包括：弹性件，一端相对于工作组件固定安装；张紧组件，其第一端相对于工作组件枢接，第二端与弹性件的另一端连接，第三端抵压皮带，第一端、第二端和第三端不共线，弹性件始终处于弹性变形状态，以使皮带张紧。
一些实施例中，花园工具为耙草机。
一些实施例中，花园工具是多头工具，多头工具包括主体和与主体可拆卸连接的工作头，传动装置设置于工作头上。
本申请的有益之处在于：本申请的花园工具，通过在直接在传动轮上形成扇叶结构，是传动轮转动时能够带动空气流动，流动的空气可以对传动装置起到散热作用，避免传动装置寿命降低或损坏，且不会增加花园工具的零部件数量，避免了花园工具成本和体积的增加，提高了用户使用体验。
附图说明
图1是本申请具体实施方式提供的一种多头工具的结构示意图；
图2是图1中的多头工具在另一个视角下的结构示意图；
图3是本申请具体实施方式提供的安装有扭簧组件的耙草附件的部分结构示意图；
图4是图3中的耙草附件的主视图；
图5是本申请具体实施方式提供的一种耙草附件的轴测图；
图6是图5中耙草附件的侧视图；
图7是本申请具体实施方式提供的第一皮带轮的结构示意图；
图8是本申请具体实施方式提供的第二皮带轮的结构示意图；
图9是本申请具体实施方式提供的安装有滚筒刀片的耙草附件的部分结构示意图；
图10是图9中的耙草附件的主视图；
图11是本申请具体实施方式提供的扭簧组件的结构示意图；
图12是本申请具体实施方式提供的扭簧的结构示意图；
图13是图1中的A处放大图；
图14是本申请具体实施方式提供的耙草附件的刀架轴在一个高度下的结构示意图；
图15是本申请具体实施方式提供的耙草附件的刀架轴在另一个高度下的结果示意图。
图中：
100、耙草附件；10、第一结合部；11、支撑杆；12、主传动轴；20、刀架
轴；30、切割组件；31、滚筒刀片；32、扭簧组件；321、扭簧座；3211、配合孔；3212、座体；3213、连接部；32131、安装孔；32132、插槽；32133、插孔；32134、连通槽；322、扭簧；3221、自由端；3222、簧体；3223、限位部；33、锁定件；331、弧形卡箍；332、紧固件；40、传动装置；41、第一皮带轮；411、第一内圈；412、第一外圈；413、第一扇叶结构；42、第二皮带轮；421、第二内圈；422、第二外圈；423、第二扇叶结构；43、皮带；50、轮子；51、连接杆；60、壳体；61、第一腔体；62、第二腔体；63、保护罩；64、隔板；70、调高机构；71、档位件；711、档位；72、连杆；73、手柄；731、卡销；81、齿轮箱；82、副传动轴；90、张紧机构；91、弹性件；92、张紧组件；921、连接件；922、抵压轮；923、第一端；924、第二端；925、第三端；
200、主体；201、电源装置；202、第一握持部；203、操作开关；204、电
机；205、第二握持部；206、第二结合部。
具体实施方式
在详细解释本申请的任何实施方式之前，应当理解，本申请不限于其应用到以下描述中阐述的或以上附图中所示的结构细节和组件布置。
在本申请中，术语“包括”、“包含”、“具有”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
在本申请中，术语“和/或”，是一种描述关联对象的关联关系，表示可以存在三种关系。例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本申请中字符“/”，一般表示前后关联对象是一种“和/或”的关系。
本申请中，术语“连接”、“结合”、“耦合”、“安装”可以是直接连接、结合、耦合或安装，也可以是间接连接、结合、耦合或安装。其中，进行举例示范，直接连接指的是两个零件或组件之间不需设置中间件而连接在一起，间接连接指的是两个零件或组件分别与至少一个中间件连接，这两个零件或组件通过中间件实现连接。此外，“连接”和“耦合”不限于物理或机械连接或耦合，并且可以包括电连接或耦合。
在本申请中，本领域普通技术人员将理解，结合数量或条件使用的相对术语(例如，“约”，“大约”，“基本”等)为包括所述值并且具有上下文所指示的含义。例如，该相对术语至少包括与特定值的测量相关的误差程度，与特定值相关的由制造，组装，使用造成的公差等。这种术语也应被视为公开了由两个端点的绝对值限定的范围。相对术语可指代所指示的值的一定百分比(例如1％，5％，10％或更多)的加或减。未采用相对术语的数值，也应该被揭示为具有公差的特定值。此外，“基本”在表达相对的角度位置关系时(例如，基本平行，基本垂直)，可指代在所指示的角度的基础上加或减一定度数(例如1度，5度，10度或更多)。
在本申请中，本领域普通技术人员将理解，由组件执行的功能可以为由一个组件，多个组件，一个零件，或多个零件执行。同样的，由零件执行的功能也可以由一个零件，一个组件，或多个零件组合来执行。
在本申请中，术语“上”、“下”、“左”、“右”、“前”、“后”等方位词是以附图所示的方位和位置关系来进行描述的，不应理解为对本申请实施例的限定。此外，在上下文中，还需要理解的是，当提到一个元件连接在另一个元件“上”或者“下”时，其不仅能够直接连接在另一个元件“上”或者“下”，也可以通过中间元件间接连接在另一个元件“上”或者“下”。还应当理解的，上侧、下侧、左侧、右侧、前侧、后侧等方位词不仅代表正方位，也可以理解为侧方位。例如，下方可以包括正下方、左下方、右下方、前下方以及后下方等。
本申请提供了一种花园工具，花园工具可以是耙草机或者多头工具。以下实施例以花园工具为手推式多头工具为例进行介绍。
多头工具包括主体200和多个不同的工作头，不同的工作头可以择一安装到主体200上，从而使多头工具能够分别实现不同的功能，主体200则供用户握持并推动工作头相对于地面运动。可选地，工作头可以为耙草附件100、铲雪附件、剪枝附件等。本实施例中，以工作头为耙草附件100为例进行说明。
如图1和图2所示，多头工具的主体200包括电源装置201、第一握持部202、操作开关203和电机204。电源装置201用于为电机204供电。电源装置201可以是可拆卸的电池包，安装至多头工具的电池包接口，在一些实施例中，电源装置201提供的电压最大可以为56V。电机204设置于主体200的机壳内，电机204的最大转速可达到3500r/min。第一握持部202用于供用户握持，操作开关203用于用户操作。一些实施例中，操作开关203设置在第一握持部202上或者设置在靠近第一握持部202的位置，从而使用户可以实现单手握持和操作。一些实施例中，多头工具还包括调速件，可以设置于操作开关203附近。一些实施例中，主体200还包括第二握持部205。第一握持部202和第二握持部205可以供用户的双手分别进行握持，从而保证多头工具工作时的平稳性。
一些实施例中，握持端与工作头分别设置在多头工具(耙草机/花园工具)的两头，其中，电源装置201、第一握持部202、电机204及第二握持部205统一设置在握持端。将电源装置201设置在远离工作头的一端，一方面便于进行拆卸更换，另一方面，耙草附件100工作时会对主体200产生作用力，重量较大的电源装置201位于远离耙草附件100的一端可以对此作用力起到平衡作用，避免用户握持时有较大的震感，提高用户使用体验。需要说明的是，握持端和工作头通过杆件连接，该杆件可以实现对电源装置201、第一握持部202、操作开关203、电机204等的支撑和连接。
如图1和图2所示，耙草附件100包括第一结合部10，主体200还包括第二结合部206，第一结合部10配置为与第二结合部206相结合。可以理解的是，耙草附件100与主体200的结合包括但不限于是机械结构的连接、动力的传动以及电连接。其中，机械结构的连接包括支撑部件的连接，动力的传动是指电机204的输出轴与耙草附件100的传动结构传动连接，电连接包括耙草附件100上的检测元件、照明灯等分别与操作开关203、电源装置201的电连接。本实施例中，如图3所示，第一结合部10包括支撑杆11和主传动轴12，支撑杆11为管状部件，主传动轴12穿设于支撑杆11内，主传动轴12可以绕自身轴向相对于支撑杆11转动。当第一结合部10与第二结合部206结合后，支撑杆11与主体200的壳体结构连接，主传动轴12与电机204的输出端直接或间接连接。本实施例中，主传动轴12靠近主体200的一端伸出至支撑杆11的外部，从而便于实现与电机204的输出端的连接。
一些实施例中，多头工具的主体200未设置电机204，电机204设置在工作头上，这种多头工具便于根据工作头的实际工作需求配置对应性能的电机204。在此实施例中，第一结合部10与第二结合部206之间的结合则不包含动力的传动。
如图1和图2所示，耙草附件100还包括支撑结构、刀架轴20、切割组件30和传动装置40，支撑结构与第一结合部10连接，支撑结构配置为对耙草附件100的各个部件进行支撑。刀架轴20可转动地安装在支撑结构上，切割组件30安装在刀架轴20上，切割组件30与刀架轴20同步转动。传动装置40也安装在支撑结构上，传动装置40的输入端与第一结合部10直接或间接耦合，传动装置40的输出端与刀架轴20耦合。在电机204的作用下，第一结合部10带动传动装置40动作，传动装置40带动刀架轴20进行旋转，刀架轴20带动切割组件30转动，从而对地面进行作业。本实施例中，刀架轴20横向延伸。具体横向延伸是指：在耙草附件100工作时，刀架轴20与地面大致平行。
本实施例中，耙草附件100还包括轮子50，轮子50与支撑机构连接。在用户通过主体200推动耙草附件100工作时，轮子50能够减少耙草附件100前进的阻力，进而能够节省力气，提高了用户使用体验。一些实施例中，耙草附件100还可以额外为轮子50配置驱动源，以该驱动源的动力代替人工驱动轮子50转动，从而进一步提高用户使用体验。在此实施例中，该驱动源可以通过第一结合部10与第二结合部206的结合来实现与主体200的电源装置201的电连接。
如图1和图2所示，支撑结构包括壳体60，壳体60能够对刀架轴20、传动装置40及至少部分切割组件30进行罩设保护。本实施例中，第一结合部10与壳体60连接。第一结合部10与壳体60的连接位置位于耙草附件100沿宽度方向的中部，从而使耙草附件100受力更平衡。轮子50与壳体60相连接，轮子50设置有两个且分别连接在壳体60沿宽度方向的两端。其他实施例中，轮子50也可以设置三个、四个或者更多，在此不做具体限定。
本实施例中，壳体60罩设切割组件30的上方区域，从而避免用户被切割组件30或者扬起的石子等误伤。壳体60的最低点与地面具有一定距离，一方面壳体60不与地面接触，能够避免磨损；另一方面，壳体60能对大块石头等障碍物进行阻挡，避免这些障碍物造成切割组件30的意外损坏。
如图1和图3所示，耙草附件100还包括保护罩63，保护罩63设置在耙草附件100朝向用户的一侧，保护罩63的能够避免切割组件30对用户造成损伤。本实施例中，保护罩63为翻转排草挡板。具体地，保护罩63与壳体60枢接，在耙草附件100工作时，切割组件30割掉的草向后运动并推动保护罩63向后侧翻转，进而实现草的排出，避免杂草缠绕到切割组件30上导致切割组件30无法工作。一些实施例中，保护罩63靠近地面的一端采用柔性材料制成，该柔性部分能够对石头等颗粒状物体进行缓冲的阻挡，避免石头飞溅伤害用户，提高耙草附件100的安全性。柔性材料可以为橡胶垫、具有较强弹性变形能力的塑料等。
一些实施例中，如图3所示，传动装置40设置在刀架轴20的一端。通过将传动装置40设置在刀架轴20的一端，能够避免安装在刀架轴20上的切割组件30沿刀架轴20的轴向被传动装置40中断，进而避免耙草附件100在工作时沿刀架轴20的轴向出现漏草的问题，提高耙草附件100的耙草效果。
一些实施例中，如图4所示，切割组件30包括多个切割元件，多个切割元件依次安装在刀架轴20上，相邻两个切割元件之间的距离的最大值小于或等于4cm。通过此设置也能避免耙草附件100在工作时沿刀架轴20的轴向出现漏草的问题，提高用户的使用体验。可选地，相邻两个切割元件之间的距离具体可以为0、1cm、2cm、3cm、4cm等，在此不做具体限定。
如图3和图4所示，耙草附件100还包括齿轮箱81和副传动轴82。其中齿轮箱81的输入端与主传动轴12直接或间接耦合，齿轮箱81的输出端与副传动轴82的一端直接或间接耦合。副传动轴82的另一端与传动装置40的输入端连接。本实施例中，副传动轴82与刀架轴20大致平行。一方面，齿轮箱81的设置能够对电机204输出的转动运动进行一次减速，保证刀架轴20以较为合适的速度转动。另一方面，通过副传动轴82能够将转动运动传动至刀架轴20的端部，进而实现了将传动装置40布置在刀架轴20一端的设计。本实施例中，齿轮箱81安装在耙草机的支撑结构上，副传动轴82可转动地安装在支撑结构上。
如图4和图5所示，支撑结构还包括隔板64，隔板64设置在壳体60内部并使耙草附件100形成第一腔体61和第二腔体62。传动装置40至少部分设置在第一腔体61内，齿轮箱81和副传动轴82设置在第二腔体62内。通过将传动装置40设置在独立的腔室内，能够避免耙草产生的草屑或其他物体被卷入传动装置40而导致传动装置40无法运行。
本实施例中，传动装置40为带传动，带传动的方式具有良好的挠性，可缓和冲击、吸收震动，从而能够缓解耙草附件100工作时传导至主体200的震动，提高用户的使用体验。如图5和图6所示，传动装置40包括第一皮带轮41、第二皮带轮42和皮带43，第一皮带轮41与电机204的输出轴直接或间接耦合，第二皮带轮42与刀架轴20耦合，皮带43套设于第一皮带轮41和第二皮带轮42。本实施例中，第一皮带轮41和第二皮带轮42均可转动地安装在隔板64上，第一皮带轮41与副传动轴82连接并同步转动，第二皮带轮42与刀架轴20连接并同步转动。
可选地，如图7和图8所示，第一皮带轮41和第二皮带轮42均为楔带轮，皮带43为楔带。楔带和楔带轮的配合不仅能够传递较大的功率，且震动小、运行平稳。其他实施例中，第一皮带轮41和第二皮带轮42均可以为普通带轮、皮带43为普通皮带43。
皮带43长时间使用后会变松，进而导致传动失效、切割组件30无法正常工作的问题。对此，如图5和图6所示，花园工具还包括张紧机构90，张紧机构90配置为使皮带43始终保持张紧，进而防止传动失效的情况发生。
本实施例中，张紧机构90包括弹性件91和张紧组件92，其中，弹性件91的一端与支撑结构连接，即相对于工作组件(刀架轴20和切割组件30)固定安装。张紧组件92包括三个连接端，分别为第一端923、第二端924和第三端925。第一端923、第二端924和第三端925不共线。第一端923与支撑结构枢接，第二端924与弹性件91的另一端连接，第三端925抵压皮带43，弹性件91始终处于弹性变形状态，以使皮带43张紧。具体地，由于张紧组件92抵压在皮带43上，从而使弹性件91保持一定的变形量。在皮带43因长期使用变松弛后，其对弹性件91的约束力减小，弹性件91释放一定的变形量(即变形量减小)，从而使张紧组件92整体绕其第一端923旋转，张紧组件92的第二端924在绕第一端923旋转的过程中进一步抵压皮带43，从而使皮带43保持张紧。本实施例中，张紧组件92的第一端923与隔板64枢接，弹性件91的一端与隔板64固定连接，弹性件91与隔板64之间的连接结构可以根据需要灵活设置，在此不做限定。
一些实施例中，张紧组件92包括连接件921和抵压轮922，其中连接件921与隔板64枢接，该枢接位置构成张紧组件92的第一端923。弹性件91与连接件921连接，该连接位置构成张紧组件92的第二端924。抵压轮922与连接件921连接且能相对于连接件921转动，抵压轮922构成张紧组件92的第三端925。抵压轮922抵压皮带43，从而使张紧组件92与皮带43之间的配合为滚动配合，进而能够减少皮带43的磨损，提高传动装置40的使用寿命。本实施例中，张紧组件92布置在皮带43外侧，保证皮带43分别与第一皮带轮41和第二皮带轮42具有足够大的包角，进而保证传动的可靠性。其他实施例中，张紧组件92也可以设置在皮带43内侧。另外的实施例中，耙草附件100还可以设置两个、三个或者更多的张紧机构90。
一些实施例中，传动装置40也可以为齿轮传动或者链条传动。对于齿轮传动的方式，传动装置40包括与电机204的输出轴直接或间接耦合的第一齿轮、与刀架轴20直接或间接耦合的第二齿轮，第一齿轮与第二齿轮直接或间接啮合。对于链条传动的方式，传动装置40包括与电机204的输出轴直接或间接耦合的第一链轮、与刀架轴20直接或间接耦合的第二链轮以及分别与第一链轮和第二链轮传动配合的链条。需要说明的是，第一带轮、第二带轮、第一齿轮、第二齿轮、第一链轮、第二链轮均可统称为传动轮。
在花园工具长时间运行的状态下，传动装置40会产生热量，若热量不能及时散出，可能会降低花园工具的寿命降低，甚至因为过热而损坏。相关技术中，通常为花园工具配置散热系统，不仅增加了制造成本，且导致花园工具的体积增加，降低了用户使用体验。
对此，如图5和图6所示，传动装置40的传动轮包括扇叶结构，传动轮转动时能带动空气流动。在传动装置40工作传动轮转动时，扇叶结构同步转动所带动的气流可以为传动装置40或耙草附件100的其他结构进行散热，既能避免传动装置40因过热而损坏，且不额外增加零部件，不仅降低了制造成本，且使花园工具保持较小的体积。可选地，每个传动轮包括内圈和外圈，扇叶结构均匀分布在内圈和外圈之间，从而形成轴流式风扇。
本实施例中，如图7所示，第一皮带轮41包括第一外圈412、第一内圈411和多个第一扇叶结构413，多个第一扇叶结构413均匀分布在第一外圈412和第一内圈411之间。第一内圈411与刀架轴20连接，第一外圈412与皮带43配合。当皮带43带动第一皮带轮41转动时，第一扇叶结构413能带动第一腔体61内的空气流动，并形成第一风路。第一风路可以传动装置40以及设置在第一腔体61内的其他结构进行散热。需要说明的是，第一腔体61并非为密封腔体，即第一腔体61与耙草附件100的外部连通，从而保证第一腔体61内的热空气可与耙草附件100外部的常温空气进行循环，进而更好对第一腔体61内的结构进行散热。使第一腔体61与外部连通的方式可以为在壳体60上设置开孔，也可以仅仅依靠壳体60自身的缝隙。
如图8所示，第二皮带轮42包括第二外圈422、第二内圈421和多个第二扇叶结构423，多个第二扇叶结构423均匀分布在第二外圈422和第二内圈421之间。第二皮带轮42转动时，第二扇叶结构423带动空气流动。本实施例中，第二扇叶结构423通过第二扇叶结构423将第一腔体61和第二腔体62打通，当第二皮带轮42转动时，可以带动气流在在第一腔体61和第二腔体62之间流动，在第二腔体62内流动的气流可以对副传动轴82、齿轮箱81等结构进行降温，避免齿轮箱81和副传动轴82因过热而损伤。隔板64上设置有开孔，该开孔与第二扇叶结构423相对，从而使第一腔体61和第二腔体62连通。可选地，第二腔体62也可以设置为与耙草附件100外部连通，从而便于第一腔体61、第二腔体62内的热空气与外部的常温空气进行循环，提高降温效果。
相关技术中，用于安装在多头工具上的耙草附件100在耙草时功能单一，难以满足用户使用需求。对此，本实施例中，耙草附件100的切割组件30可配置为第一切割组件或第二切割组件，第一切割组件和第二切割组件的切割元件不同。用户可以选择切换不同的切割组件30，使耙草附件100可以满足不同的耙草需求，提升了用户使用体验。
一些实施例中，如图9和图10所示，第一切割组件的切割元件是滚筒刀片31，滚筒刀片31套设在刀架轴20上。滚筒刀片31可以用松土。在此实施例中，耙草附件100包括多个滚筒刀片31，多个滚筒刀片31沿刀架轴20的轴向依次设置。
本实施例中，定义刀架轴20配置为供滚筒刀片31套设的部分为套设部，套设部的横截面为非圆形，滚筒刀片31用于套设刀架轴20的孔的形状与套设部的形状相同、大小一致。通过非圆形的配合方式实现了刀架轴20与滚筒刀片31之间沿周向的限位，进而保证滚筒刀片31能够随刀架轴20同步转动。可选地，刀架轴20在套设部的横截面可以为六边形。其他实施例中，刀架轴20在套设部的横截面也可以为四边形、八边形等，在此不做具体限定。
如图10所示，支撑结构还包括可拆卸式锁定件33，锁定件33移除时可将第一切割组件从刀架轴20上拆卸。本实施例中，位于刀架轴20一端的滚筒刀片31可通过位于刀架轴20上的环形凸台或者其他结构进行轴向限位，位于刀架轴20另一端的滚筒刀片31通过锁定件33进行轴向限位，当将锁定件33拆除后，所有的滚筒刀片31可以从刀架轴20设置锁定件33的一端拆卸下来。本实施例中，锁定件33包括弧形卡箍331和紧固件332，耙草附件100的支撑结构(如壳体60)上设置有弧形槽，弧形槽和弧形卡箍331围设形成圆柱配合位，刀架轴20的端部设置在该圆柱配合位内，并能在该圆柱配合位内转动，从而可以实现对刀架轴20端部的支撑以及对滚筒刀片31的轴向限位。可选地，紧固件332可以为螺栓，结构简单、拆装方便。一些实施例中，弧形卡箍331和弧形槽均为半圆弧。一些实施例中，弧形卡箍331和弧形槽两者中一个为优弧一个为劣弧，且两者对应的圆心角之和不大于180°。一些实施例中，刀架轴20上还套设有轴承，该轴承夹设在弧形卡箍331与弧形槽围设形成的圆柱配合位内，轴承的设置能够保证刀架轴20平稳转动。
一些实施例中，如图3和图4所示，第二切割组件的切割元件是扭簧组件32，扭簧组件32套设在刀架轴20上，扭簧组件32用于耙草。在此实施例中，耙草附件100包括多个扭簧组件32，多个扭簧组件32沿刀架轴20的轴向依次设置。
在此实施例中，定义刀架轴20用于供扭簧组件32套设的部分为套设部，套设部的横截面为非圆形，如图11所示，扭簧组件32用于套设刀架轴20的配合孔3211的形状与套设部的形状相同、大小一致。通过非圆形的配合方式实现了刀架轴20与扭簧组件32之间沿周向的限位，进而保证扭簧组件32能够随刀架轴20同步转动。可选地，刀架轴20的套设部的横截面与配合孔3211的形状均为六边形。其他实施例中，刀架轴20在套设部的横截面即配合孔3211的形状也可均设置为四边形、八边形等，在此不做具体限定。
如图4所示，本实施例中，位于刀架轴20一端的扭簧组件32可通过位于刀架轴20上的环形凸台或者其他结构进行轴向限位，位于刀架轴20另一端的扭簧组件32通过锁定件33进行轴向限位，当将锁定件33拆除后，所有的扭簧组件32可以从刀架轴20设置锁定件33的一端拆卸下来。需要说明的是，不同切割组件之间，也可以只有部分切割元件不同，例如，第三切割组件，由滚筒刀片31和扭簧组件32共同组成，形成混搭。另外，切割元件不同时，也可能导致切割组件所需的切割元件数量不同，或者切割元件之间的间距不同，或者切割元件的安装方式不同。
如图11和图12所示，扭簧组件32包括扭簧座321和扭簧322，扭簧座321套设于刀架轴20上，扭簧322与扭簧座321可拆卸连接。故在个别扭簧322损坏时，不必将整个扭簧组件32拆卸掉，仅更换对应的扭簧322即可，提高了耙草附件100更换零部件的便利性。
本实施例中，扭簧座321包括座体3212和连接部3213，座体3212上设置有配合孔3211并用于套设在刀架轴20上。连接部3213设置在座体3212的圆周面上，扭簧322可拆卸地安装在连接部3213上。本实施例中，扭簧座321包括两个连接部3213，其他实施例中，连接部3213的个数也可以为一个、三个或者更多，每个连接部3213上均连接一个扭簧322。
如图12所示，扭簧322包括簧体3222和两个自由端3221，两个自由端3221用于耙草，簧体3222上沿径向向外凸设有限位部3223。如图11所示，连接部3213的端面上设置有安装孔32131，安装孔32131配置为供簧体3222插入。安装孔32131的孔壁上设置有插槽32132，插槽32132沿安装孔32131的径向设置，且沿安装孔32131的轴向贯穿至连接部3213的端面，插槽32132配置为供限位部3223插入。安装孔32131的孔壁上设置有若干插孔32133，插孔32133配置为供自由端3221穿设，插孔32133的个数与自由端3221的个数相同。安装孔32131的孔壁上还设置有连通槽32134，连通槽32134自连接部3213的端面起始并沿安装孔32131的轴向延伸，连通槽32134连通若干插孔32133。
在安装扭簧322时，可以按压自由端3221与限位部3223，使两者沿簧体3222的周向相靠近(或远离)，此时簧体3222与安装孔32131相对、限位部3223与插槽32132相对、自由端3221与连通槽32134相对，接着将扭簧322整体沿安装孔32131的轴向装入安装孔32131，当自由端3221与对应的插孔32133相对后，不再按压自由端3221和限位部3223，两者在簧体3222的弹性下复位，自由端3221卡入对应的插孔32133中，扭簧322牢固地安装在连接部3213上。扭簧322拆卸的过程与上述过程相反，在此不再赘述。
一些实施例中，耙草附件100的工作组件相对于地面的高度可调，从而使耙草附件100能够更好地进行作业。本实施例中，耙草附件100的刀架轴20及刀架轴20上的切割组件30相对于地面的高度可调。对此，耙草附件100还包括调高机构70，调高机构70能够使刀架轴20相对于地面的高度可调。具体地，刀架轴20与壳体60的相对位置固定，轮子50与地面保持接触，调高机构70分别与轮子50和壳体60直接或间接连接，调高机构70通过调节壳体60相对于轮子50的高度，实现对刀架轴20相对于地面的高度的调节。
为便于展示调高机构70的细节，图14和图15中隐藏了壳体60，如图13-图15所示，调高机构70包括档位件71、连杆72和手柄73，档位件71与耙草附件100的壳体60固定连接，档位件71上设置有多个档位711。连杆72的第一端与轮子50连接，连杆72的第二端与壳体60枢接(枢接点为图14中的B点)，即连杆72能绕B点相对于壳体60转动。手柄73与连杆72固定连接，且用于供用户操作。用户能够操作手柄73并使手柄73选择与任一个档位711配合，以使手柄73带动连杆72和轮子50相对于壳体60和刀架轴20转动后并锁定。由于轮子50与地面的高度保持不变，故在壳体60和刀架轴20相对于手柄73、连杆72和轮子50转动时，刀架轴20和壳体60相对于地面的高度发生变化，从而实现工作组件相对于地面的高度调节。
本实施例中，如图14和图15所示，档位711可以为限位孔(或限位槽)，多个档位711沿竖直平面内的弧形排布。手柄73上设置有卡销731，用户操作手柄73相对于其第二端转动时，卡销731能够卡接于不同的限位孔(或限位槽)内，从而实现档位件71与手柄73的位置锁定，即实现壳体60与轮子50的位置锁定。一些实施例中，档位件71和卡销731可选择采用具体一定变形能力的材料如塑料等制成，以便于卡销731能够顺利与档位711配合或分离。一些实施例中，卡销731也可以通过弹性部件与手柄73连接。用户操作手柄73时，在外力作用下卡销731克服弹性部件的作用力并从限位孔中脱离，当用户不再操作手柄73时，卡销731在弹性部件的作用下保持在卡入限位槽中的位置，从而实现壳体60和轮子50的位置锁定。其他实施例中，档位711也可以设置凸起结构，此时，手柄73上设置有限位孔，当限位孔与不同的凸起结构卡接时，可以实现刀架轴20的高度调节。
本实施例中，如图1、图3和图13所示，连杆72大致沿轮子50的径向延伸，连杆72的第一端与轮子50的中心处连接。连杆72的第一端与轮子50的转轴为套设关系，在轮子50转动时，连杆72的第一端不随轮子50转动。耙草附件100还包括连接杆51，连接杆51大致沿水平方向延伸，连接杆51穿设于壳体60并能绕其轴向相对于壳体60转动。连杆72的第二端与连接杆51相固定，从而实现与壳体60的枢接。手柄73与连杆72之间呈夹角设置，从而可以使档位件71和手柄73的配合位置分别与刀架轴20、轮子50的中心错开设置，避免位置发生干涉。
本实施例中，如图3所示，耙草附件100沿宽度方向的一端设置有上述调高机构70，另一端仅设置连杆72，该连杆72和调高机构70的连杆72两者分别与连接杆51的两端连接，当用户操作调高机构70的手柄73时，壳体60沿宽度方向的两端同步相对于两个轮子50的高度变化，进而使壳体60和刀架轴20沿宽度的两端的高度同步得到调节。
一些实施例中，也可以在两个轮子50处均设置调高组件，在此实施例中，两个调高组件的连杆72分别与壳体60枢接，在此实施例中，壳体60和刀架轴20沿宽度方向两端分别相对于地面的高度分别进行调节。
以上显示和描述了本申请的基本原理、主要特征和优点。本行业的技术人员应该了解，上述实施例不以任何形式限制本申请，凡采用等同替换或等效变换的方式所获得的技术方案，均落在本申请的保护范围内。

Claims (60)

  1. 一种耙草附件，包括：
    第一结合部(10)，配置为结合至多头工具的主体(200)；
    刀架轴(20)；
    切割组件(30)，安装至所述刀架轴(20)上，所述切割组件(30)配置为与所述刀架轴(20)同步旋转；以及
    传动装置(40)，配置为与所述刀架轴(20)耦合，并驱动所述刀架轴(20)旋转，所述传动装置(40)设置于所述刀架轴(20)的一端。
  2. 根据权利要求1所述的耙草附件，其中，所述切割组件(30)包括多个滚筒刀片(31)，多个所述滚筒刀片(31)依次套设于所述刀架轴(20)上。
  3. 根据权利要求1所述的耙草附件，其中，所述切割组件(30)包括多个扭簧组件(32)，多个所述扭簧组件(32)依次套设于所述刀架轴(20)上。
  4. 根据权利要求3所述的耙草附件，其中，所述扭簧组件(32)包括扭簧座(321)和扭簧(322)，所述扭簧座(321)套设于所述刀架轴(20)上，所述扭簧(322)与所述扭簧座(321)可拆卸连接。
  5. 根据权利要求1所述的耙草附件，其中，所述传动装置(40)采用带传动。
  6. 根据权利要求1所述的耙草附件，其中，所述传动装置(40)包括第一皮带轮(41)、第二皮带轮(42)和皮带(43)，所述第一皮带轮(41)配置为与电机(204)的输出轴直接或间接耦合，所述第二皮带轮(42)与所述刀架轴(20)耦合，所述皮带(43)套设于所述第一皮带轮(41)和所述第二皮带轮(42)。
  7. 根据权利要求6所述的耙草附件，其中，所述第一皮带轮(41)包括第一扇叶结构(413)，所述第一皮带轮(41)转动时，所述第一扇叶结构(413)带动空气流动；和/或
    所述第二皮带轮(42)包括第二扇叶结构(423)，所述第二皮带轮(42)转动时，所述第二扇叶结构(423)带动空气流动。
  8. 根据权利要求1所述的耙草附件，还包括轮子(50)，所述多头工具为手推式多头工具。
  9. 根据权利要求8所述的耙草附件，其中，所述刀架轴(20)与所述轮子(50)连接且相对高度可调，以使所述刀架轴(20)相对于地面的高度可调。
  10. 根据权利要求1所述的耙草附件，还包括保护罩(63)，所述保护罩(63)为翻转排草挡板。
  11. 一种耙草附件，包括：
    第一结合部(10)，配置为结合至多头工具的主体(200)；
    至少一个刀架轴(20)；
    切割组件(30)，包括多个切割元件，多个所述切割元件依次安装在至少一个所述刀架轴(20)上，所述切割组件(30)配置为与至少一个所述刀架轴(20)同步旋转；
    相邻的两个所述切割元件之间的距离的最大值小于或等于4cm。
  12. 根据权利要求11所述的耙草附件，其中，所述切割元件为滚筒刀片(31)，所述滚筒刀片(31)套设于所述刀架轴(20)。
  13. 根据权利要求11所述的耙草附件，其中，所述切割元件为扭簧组件(32)，所述扭簧组件(32)套设于所述刀架轴(20)。
  14. 根据权利要求13所述的耙草附件，其中，所述扭簧组件(32)包括扭簧座(321)和扭簧(322)，所述扭簧座(321)套设于所述刀架轴(20)上，所述扭簧(322)与所述扭簧座(321)可拆卸连接。
  15. 根据权利要求11所述的耙草附件，还包括传动装置(40)，所述传动装置(40)配置为与所述刀架轴(20)耦合，并驱动所述刀架轴(20)旋转，所述传动装置(40)设置在所述刀架轴(20)的一端。
  16. 根据权利要求15所述的耙草附件，其中，所述传动装置(40)包括第一皮带轮(41)、第二皮带轮(42)和皮带(43)，所述第一皮带轮(41)配置为与电机(204)的输出轴直接或间隔耦合，所述第二皮带轮(42)与所述刀架轴(20)耦合，所述皮带(43)套设于所述第一皮带轮(41)和所述第二皮带轮(42)。
  17. 根据权利要求16所述的耙草附件，其中，所述第一皮带轮(41)包括第一扇叶结构(413)，所述第一皮带轮(41)转动时，所述第一扇叶结构(413)带动空气流动；和/或
    所述第二皮带轮(42)包括第二扇叶结构(423)所述第二皮带轮(42)转动时，所述第二扇叶结构(423)带动空气流动。
  18. 根据权利要求11所述的耙草附件，还包括轮子(50)，所述多头工具为手推式多头工具。
  19. 根据权利要求18所述的耙草附件，还包括调高机构(70)，所述调高机构(70)配置为使所述刀架轴(20)相对于地面的高度可调。
  20. 根据权利要求11所述的耙草附件，还包括保护罩(63)，所述保护罩(63)为翻转排草挡板。
  21. 一种花园工具，包括设置于所述花园工具的两头的握持端和工作头，其中，
    所述握持端，包括：
    握持部(202)，配置为供用户握持；和
    电源装置(201)，配置为给所述花园工具供电；
    所述工作头，包括：
    刀架轴(20)，大致平行于地面横向延伸；
    切割组件(30)，安装至所述刀架轴(20)，所述切割组件(30)配置为与所述刀架轴(20)同步旋转；和
    传动装置(40)，配置为与所述刀架轴(20)耦合，并驱动所述刀架轴(20)旋转，所述传动装置(40)设置于所述刀架轴(20)的一端。
  22. 根据权利要求21所述的花园工具，还包括电机(204)，所述电机(204)设置在所述握持端，配置为驱动所述传动装置(40)。
  23. 根据权利要求22所述的花园工具，其中，所述握持端和所述工作头通过单个支撑杆(11)连接。
  24. 根据权利要求23所述的花园工具，其中，所述支撑杆(11)为管状部件，所述支撑杆内穿设有主传动轴(12)，所述主传动轴(12)将所述电机(204)的动力传递给所述传动装置(40)。
  25. 根据权利要求24所述的花园工具，其中，所述传动装置(40)采用带传动。
  26. 根据权利要求25所述的花园工具，其中，所述传动装置(40)包括第一皮带轮(41)、第二皮带轮(42)和皮带(43)，所述第一皮带轮(41)用于与所述主传动轴(12)耦合，所述第二皮带轮(42)与所述刀架轴(20)耦合，所述皮带(43)套设于所述第一皮带轮(41)和所述第二皮带轮(42)。
  27. 根据权利要求21所述的花园工具，还包括壳体(60)，配置为罩设保护所述工作头。
  28. 根据权利要求27所述的花园工具，还包括轮子(50)，连接在所述壳体(60)沿宽度方向的两端。
  29. 根据权利要求28所述的花园工具，其中，所述刀架轴(20)与所述轮子(50)的相对高度可调，以使所述刀架轴(20)相对于地面的高度可调。
  30. 根据权利要求27所述的花园工具，还包括保护罩(63)，所述保护罩(63)可枢转地连接至所述壳体(60)。
  31. 一种耙草附件，包括：
    第一结合部(10)，配置为结合至多头工具的主体(200)；
    刀架轴(20)；
    切割组件(30)，安装至所述刀架轴(20)，所述切割组件(30)配置为与所述刀架轴(20)同步转动；
    其中，所述切割组件(30)可配置为第一切割组件或第二切割组件，所述第一切割组件和所述第二切割组件的至少部分切割元件不同。
  32. 根据权利要求31所述的耙草附件，还包括可拆卸式锁定件(33)，所述锁定件(33)移除时可将所述第一切割组件或所述第二切割组件从所述刀架轴(20)上拆卸。
  33. 根据权利要求31所述的耙草附件，其中，所述第一切割组件的切割元件是滚筒刀片(31)，所述滚筒刀片(31)套设在所述刀架轴(20)上。
  34. 根据权利要求31所述的耙草附件，其中，所述第二切割组件的切割元件是扭簧组件(32)，所述扭簧组件(32)套设在所述刀架轴(20)上。
  35. 根据权利要求34所述的耙草附件，其中，所述扭簧组件(32)包括扭簧座(321)和扭簧(322)，所述扭簧座(321)套设于所述刀架轴(20)上，所述扭簧(322)与所述扭簧座(321)可拆卸连接。
  36. 根据权利要求31所述的耙草附件，还包括轮子(50)，所述多头工具是手推式多头工具。
  37. 根据权利要求36所述的耙草附件，还包括调高机构(70)，所述调高机构(70)配置为使所述刀架轴(20)相对于地面的高度可调节。
  38. 根据权利要求37所述的耙草附件，还包括调高机构(70)，所述调高机构(70)包括：
    档位件(71)，与所述耙草附件的壳体(60)固定连接，且设置有多个档位(711)，所述壳体(60)与所述刀架轴(20)的相对位置固定；
    连杆(72)，一端与所述轮子(50)连接，另一端与所述壳体(60)枢接；
    手柄(73)，与所述连杆(72)固定连接，所述手柄(73)能够选择与任一个所述档位(711)配合，以使所述连杆(72)和所述轮子(50)相对于所述壳体(60)和所述刀架轴(20)转动后并锁定。
  39. 根据权利要求31所述的耙草附件，还包括保护罩(63)。
  40. 根据权利要求39所述的耙草附件，其中，所述保护罩(63)为翻转排草挡板。
  41. 一种花园工具，包括：
    电机(204)和由所述电机(204)驱动的工作组件；
    传动装置(40)，配置为分别与所述工作组件和所述电机(204)的输出轴直接或间接耦合，在所述电机(204)的驱动下带动所述工作组件运动，所述传动装置(40)包括传动轮；
    其中，所述传动轮包括扇叶结构，所述传动轮转动时能带动空气流动。
  42. 根据权利要求41所述的花园工具，其中，每个所述传动轮包括内圈和外圈，所述扇叶结构均匀分布在所述内圈和所述外圈之间。
  43. 根据权利要求41所述的花园工具，其中，所述传动装置(40)至少部分设置在第一腔体(61)内，所述扇叶结构能带动所述第一腔体(61)内的空气流动，并形成第一风路。
  44. 根据权利要求41所述的花园工具，其中，所述传动装置(40)至少部分设置在第一腔体(61)内，所述花园工具还包括齿轮箱(81)，所述齿轮箱(81)分别与所述电机(204)的输出轴和所述传动装置(40)的输入端直接或间接耦合，所述齿轮箱(81)设置在第二腔体(62)内；所述扇叶结构打通所述第二腔体(62)和所述第一腔体(61)之间的隔断，并形成第二风路。
  45. 根据权利要求41所述的花园工具，其中，所述传动轮包括第一皮带轮(41)和第二皮带轮(42)，所述第一皮带轮(41)与所述电机(204)的输出轴直接或间接耦合，所述传动装置(40)还包括皮带(43)，所述皮带(43)套设于所述第一皮带轮(41)和所述第二皮带轮(42)。
  46. 根据权利要求45所述的花园工具，其中，所述工作组件包括刀架轴(20)和切割组件(30)，所述刀架轴(20)跟随由所述皮带(43)带动的所述第二皮带轮(42)转动，所述切割组件(30)随所述刀架轴(20)转动。
  47. 根据权利要求45所述的花园工具，还包括张紧机构(90)，所述张紧机构(90)配置为使所述皮带(43)始终保持张紧。
  48. 根据权利要求47所述的花园工具，其中，所述张紧机构(90)包括：
    弹性件(91)，一端相对于所述工作组件固定安装；
    张紧组件(92)，其第一端(923)相对于所述工作组件枢接，第二端(924)与所述弹性件(91)的另一端连接，第三端(925)抵压所述皮带(43)，所述第一端(923)、所述第二端(924)和所述第三端(925)不共线，所述弹性件(91)始终处于弹性变形状态，以使所述皮带(43)张紧。
  49. 根据权利要求41所述的花园工具，其中，所述花园工具为耙草机。
  50. 根据权利要求41所述的花园工具，其中，所述花园工具是多头工具，所述多头工具包括主体(200)和与所述主体(200)可拆卸连接的工作头，所述传动装置(40)设置于所述工作头上。
  51. 一种耙草机，包括：
    工作头，包括：
    刀架轴(20)，大致平行于地面横向延伸；和
    切割组件(30)，安装至所述刀架轴(20)，所述切割组件(30)配置为与所述刀架轴(20)同步旋转；
    壳体(60)，配置为罩设保护所述工作头；
    电机(204)，配置为驱动所述刀架轴(20)；
    电源装置(201)，至少配置为给所述电机(204)供电；和
    轮子(50)，连接至所述壳体(60)；
    其特征在于，所述耙草机仅包括两个轮子(50)，分别连接在所述壳体(60)沿宽度方向的两端。
  52. 根据权利要求51所述的耙草机，还包括握持端，包括配置为供用户握持的握持部(202)，且所述电机(204)和所述电源装置(201)靠近所述握持端设置。
  53. 根据权利要求52所述的耙草机，其中，所述握持端和所述工作头通过单个支撑杆(11)连接。
  54. 根据权利要求53所述的耙草机，其中，所述支撑杆(11)为管状部件，所述支撑杆内穿设有主传动轴(12)，所述主传动轴(12)将所述电机(204)的动力传递给传动装置(40)。
  55. 根据权利要求54所述的耙草机，其中，所述传动装置(40)设置于所述刀架轴(20)的一端，并驱动所述刀架轴(20)。
  56. 根据权利要求55所述的耙草机，其中，所述传动装置(40)包括第一皮带轮(41)、第二皮带轮(42)和皮带(43)，所述第一皮带轮(41)用于与所述主传动轴(12)耦合，所述第二皮带轮(42)与所述刀架轴(20)耦合，所述皮带(43)套设于所述第一皮带轮(41)和所述第二皮带轮(42)。
  57. 根据权利要求51所述的耙草机，其中，所述工作头可更换。
  58. 根据权利要求51所述的耙草机，其中，所述刀架轴(20)与所述壳体(60)的相对位置固定。
  59. 根据权利要求58所述的耙草机，还包括调高机构(70)，配置为通过调节所述壳体(60)相对于所述轮子(50)的高度，实现对所述刀架轴(20)相对于地面的高度的调节。
  60. 根据权利要求51所述的耙草机，还包括保护罩(63)，所述保护罩(63)可枢转地连接至所述壳体(60)。
PCT/CN2025/091917 2024-05-29 2025-04-29 耙草附件、耙草机及花园工具 Pending WO2025246778A1 (zh)

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CN202421209773.6U CN222396210U (zh) 2024-05-29 2024-05-29 耙草附件
CN202410678899.6 2024-05-29
CN202410678883.5A CN121080231A (zh) 2024-05-29 2024-05-29 耙草附件
CN202410678883.5 2024-05-29
CN202421209773.6 2024-05-29
CN202410678899.6A CN121080232A (zh) 2024-05-29 2024-05-29 花园工具

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CN1692692A (zh) * 2004-05-04 2005-11-09 特克斯特朗有限公司 一次性的磁性底刀
US20140230394A1 (en) * 2013-02-15 2014-08-21 Richard Zerbarini Horizontal Rotary Mower
US20170118912A1 (en) * 2013-02-15 2017-05-04 Hrm Enterprises, Inc. Cross Flow Horizontal Rotary Lawn Mower with Replaceable Blade Cartridges
CN116472848A (zh) * 2023-03-01 2023-07-25 深圳森合创新科技有限公司 割草机器人
CN222396210U (zh) * 2024-05-29 2025-01-28 南京泉峰科技有限公司 耙草附件

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1692692A (zh) * 2004-05-04 2005-11-09 特克斯特朗有限公司 一次性的磁性底刀
US20140230394A1 (en) * 2013-02-15 2014-08-21 Richard Zerbarini Horizontal Rotary Mower
CN105357952A (zh) * 2013-02-15 2016-02-24 Hrm企业有限公司 水平旋转式割草机
US20170118912A1 (en) * 2013-02-15 2017-05-04 Hrm Enterprises, Inc. Cross Flow Horizontal Rotary Lawn Mower with Replaceable Blade Cartridges
CN116472848A (zh) * 2023-03-01 2023-07-25 深圳森合创新科技有限公司 割草机器人
CN222396210U (zh) * 2024-05-29 2025-01-28 南京泉峰科技有限公司 耙草附件

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