Linkage mechanism and mower

Abstract

The application provides a linkage mechanism and a mower, which are used for a movable device, the movable device comprising a device main body and a functional component, and the linkage mechanism comprising: a lifting device, a protection device and a driving device; the lifting device is arranged on the device main body and movably connected with the functional component; the protection device is movably arranged on the functional component; and the driving device is arranged on the functional component and drivingly connected with the protection device, so that the folding and unfolding movement of the protection device is synchronized with the lifting movement of the functional component. The application realizes effective cooperation between the folding and unfolding movement of the protection device and the lifting movement of the functional component, the protection device can be folded and unfolded according to the lifting height of the functional component, the use experience is optimized, and the safety performance is improved.

Description

Technical Field

[0001] This application relates to the field of mechanical device technology, and in particular to a linkage mechanism and a lawnmower. Background Technology

[0002] Many mobile devices have movable functional components, such as the movable cutting blades on lawnmowers. These components are susceptible to damage or injury during operation due to their movable nature, thus requiring appropriate protective devices. However, the protection range of these devices is often fixed, while the components require different protection ranges under different operating conditions. Protective devices with fixed ranges cannot work efficiently with these components. Utility Model Content

[0003] In view of the deficiencies in the prior art, the technical solution adopted in this application is to propose a linkage mechanism and a lawnmower.

[0004] The first aspect of this application provides a linkage mechanism for a movable device, the movable device including a device body and functional components, the linkage mechanism including: A lifting device is installed on the main body of the equipment and is movably connected to the functional component; The protective device is movably mounted on the functional component; A drive device is provided on the functional component and is connected to the protective device so that the retraction and extension movement of the protective device is synchronized with the lifting and lowering movement of the functional component.

[0005] In an optional embodiment, the linkage mechanism further includes a linkage component that is movably connected to the functional component. The protective device is disposed on the linkage component, and the driving device drives the linkage component to move, thereby enabling the deployment and retraction of the protective device.

[0006] In an optional embodiment, the driving device drives the linkage to rotate circumferentially or move up and down to realize the unfolding and retraction of the protective device, so that when the functional component is raised, the protective device unfolds from the functional component; and when the functional component is lowered, the protective device is retracted into the functional component.

[0007] In an optional embodiment, the linkage mechanism further includes a support wheel disposed on the linkage member to synchronize with the retraction and extension movement of the protective device, and the driving device is used to drive the support wheel to support the functional component when the functional component descends.

[0008] In an optional embodiment, the support wheel is connected to the linkage via a connector, the length direction of the connector forming an angle with the axial direction of the linkage.

[0009] In one optional embodiment, the support wheel includes a wheel frame, a first wheel body, and a second wheel body; The first wheel and the second wheel are alternately arranged along the circumferential direction of the wheel frame, and the axial lines of the first wheel and the second wheel are both tangent to the circumference of the wheel frame.

[0010] In an optional embodiment, the protective device includes a plurality of protective members arranged along the width direction of the main body of the device, with adjacent protective members forming gaps for combing weeds.

[0011] In an optional embodiment, the drive device includes a drive element and a linkage; The linkage is provided with a first connecting part, the connecting rod is connected to the first connecting part, and the output end of the drive component is connected to the connecting rod, so as to drive the linkage to drive the support wheel to move synchronously with the protective device according to the lifting state of the functional component.

[0012] In an optional embodiment, the linkage mechanism further includes an elastic element and a second connecting portion; The second connecting part is disposed at the end of the linkage member away from the first connecting part, and one end of the elastic member is connected to the second connecting part, and the other end is connected to the main body of the device.

[0013] The second aspect of this application provides a lawnmower, including a linkage mechanism as described in any one of the first aspects.

[0014] Beneficial effects: This application provides a linkage mechanism and a lawnmower. The lifting device is installed on the main body of the equipment and is movably connected to the functional components, so that the functional components can rise and fall relative to the main body of the equipment. The protective device is movably installed on the functional components. The driving device drives and controls the lifting device according to the lifting device. The protective device can be unfolded or retracted relative to the functional components, realizing the effective coordination between the unfolding and retracting movement of the protective device and the lifting and lowering movement of the functional components. The protective device can adapt to the lifting and lowering height of the functional components to unfold and retract, optimizing the user experience and improving safety performance. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the linkage mechanism connection relationship in the lawnmower of the embodiment; Figure 2 A three-dimensional structural diagram of the lawnmower for an embodiment; Figure 3 This is a bottom structural view of the lawnmower in the embodiment; Figure 4 This is an exploded view of the linkage mechanism portion of the embodiment; Figure 5 This is a schematic diagram illustrating the connection relationship between the linkage component and the protective device in this embodiment. Figure 6 This is a schematic diagram of the support wheel in an embodiment.

[0017] Figure label: 1-Lifting device; 2-Protective device; 21-Protective component; 22-Backlash; 3-Drive device; 31-Drive component; 32-Connecting rod; 4-Linkage component; 41-First connecting part; 42-Second connecting part; 43-Elastic component; 5-Support wheel; 51-First wheel body; 52-Second wheel body; 53-Wheel frame; 6-Connecting component; 71-Equipment body; 72-Functional component; 721-Receiving slot. Detailed Implementation

[0018] Various embodiments of this disclosure will be described more fully below. This disclosure may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit the various embodiments of this disclosure to the specific embodiments disclosed herein, but rather this disclosure should be understood to cover all adjustments, equivalents, and / or alternatives falling within the spirit and scope of the various embodiments of this disclosure.

[0019] In the following, the terms “comprising” or “may include”, which may be used in various embodiments of this disclosure, indicate the presence of the disclosed functions, operations, or elements, and do not limit the addition of one or more functions, operations, or elements. Furthermore, as used in various embodiments of this disclosure, the terms “comprising,” “having,” and their cognates are intended only to indicate a particular feature, number, step, operation, element, component, or combination of the foregoing, and should not be construed as primarily excluding the presence of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing, or the possibility of adding one or more combinations of the foregoing.

[0020] In various embodiments of this disclosure, the expression "or" or "at least one of A and / or B" includes any combination or all combinations of the words listed simultaneously. For example, the expression "A or B" or "at least one of A and / or B" may include A, may include B, or may include both A and B.

[0021] The terms used in the various embodiments of this disclosure (such as "first," "second," etc.) may modify various components in the various embodiments, but do not limit the corresponding components. For example, the above terms do not limit the order and / or importance of the components. The above terms are only used for the purpose of distinguishing one component from others. For example, a first user device and a second user device refer to different user devices, although both are user devices. For example, a first component may be referred to as a second component without departing from the scope of the various embodiments of this disclosure, and similarly, a second component may also be referred to as a first component.

[0022] It should be noted that if a description is made of "connecting" one component to another, then the first component can be directly connected to the second component, and a third component can be "connected" between the first and second components. Conversely, when a component is "directly connected" to another component, it can be understood that there is no third component between the first and second components.

[0023] The term "user" as used in various embodiments of this disclosure may refer to a person using an electronic device or a device using an electronic device (e.g., an artificial intelligence electronic device).

[0024] The terminology used in the various embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the various embodiments of this disclosure. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of this disclosure pertain. Terms (such as those defined in a generally used dictionary) are to be interpreted as having the same meaning as in the context of the relevant technical field and are not to be interpreted as having an idealized or overly formal meaning, unless clearly defined in the various embodiments of this disclosure.

[0025] See Figures 1 to 4 As shown in the embodiment of this application, a linkage mechanism is provided for a movable device. The movable device includes a device body 71 and functional components 72. The linkage mechanism includes a lifting device 1, a protective device 2, and a driving device 3.

[0026] The mobile devices may include garden machinery, such as shrub trimming robots, pest control robots, tree planting robots, lawn maintenance robots, or mowing robots. These mobile devices all include a main body 71 and functional components 72 that are movably connected to the main body 71. For example, the functional component 72 of a shrub trimming robot may be a trimming assembly, while the functional component 72 of a lawn maintenance robot may be an adaptive chassis mechanism. The functional component 72 of a tree planting robot may be a hole-digging assembly or a gripping assembly. The functional component 72 of a lawn mower is a mowing mechanism, which is movably connected to the main body 71 to adjust the mowing height or angle.

[0027] Of course, the above content is only some examples of mobile devices and their functional components 72. There is no limitation on the specific type of mobile device and its functional components 72; they can be selected according to actual needs. The use of the linkage mechanism in this embodiment should all be covered within the protection scope of this application. This embodiment uses a lawnmower as an example for illustration.

[0028] The lifting device 1 is installed on the main body 71 of the equipment and is movably connected to the functional component 72.

[0029] Understandably, the lifting device 1 is mounted on the main body 71 of the equipment and is movably connected to the functional component 72, allowing the functional component 72 (mowing mechanism) to move up and down relative to the main body of the equipment under the drive of the lifting device 1. This adjusts the distance between the functional component 72 and the ground. For the lawnmower, this allows it to adapt to different ground conditions. For example, when the ground is uneven, the functional component 72 can be raised using the lifting device 1; when the ground is relatively even, the functional component 72 can be lowered using the lifting device 1. Furthermore, it allows for adjustment of the mowing height to adapt to different vegetation conditions. For instance, it can be adjusted according to the type, height, and density of different vegetation to achieve a good mowing effect. The lifting device 1 can also adjust the projection of the functional component 72 onto the ground. For example, when it is necessary to cut vegetation at an angle, one side of the functional component 72 can be raised using the lifting device 1 to change the mowing angle of the functional component 72.

[0030] The protective device 2 is movably mounted on the functional component 72.

[0031] Understandably, the protective device 2 is movably mounted on the functional component 72 and can switch between a retracted state and an extended state. When the protective device 2 is retracted, it saves space, making the overall structure of the mobile device more compact and reducing the protection range, thus minimizing obstruction to the working area of ​​the functional component 72. When the protective device 2 is extended, the protection range increases, effectively protecting the functional component 72 and preventing damage to the functional component 72 or injury to the user due to obstruction or impact from obstacles during movement. These obstacles are typically stones or similar objects.

[0032] The drive device 3 is mounted on the functional component 72 and drives the protective device 2 so that the retraction and extension movement of the protective device 2 is synchronized with the lifting and lowering movement of the functional component 72.

[0033] The retraction and unfolding movement of the protective device 2 specifically includes retraction and unfolding. The retraction movement refers to the movement of the protective device 2 being driven by the drive device 3 to shrink, fold, or move into a preset position to make room for the corresponding space, making the overall structure of the mobile device more compact. The unfolding movement refers to the movement of the protective device 2 being driven by the drive device 3 to unfold, extend, or move out to a preset position to form isolation or protection, so that the function of the protective component 72 of the protective device 2 can be realized.

[0034] The lifting and lowering motion of the functional component 72 specifically includes lifting and lowering. Lifting motion refers to the upward movement of the functional component 72 relative to the main body 71 of the equipment, and lowering motion refers to the downward movement of the functional component 72 relative to the main body 71 of the equipment. Driven by the lifting device 1, the height of the functional component 72 or its relative position with the main body 71 of the equipment can be adjusted.

[0035] Specifically, in some embodiments of this application, the driving device 3 drives the protective device 2 and controls the retraction and unfolding of the protective device 2 according to the lifting state of the lifting device 1, so that the retraction and unfolding movement of the protective device 2 is synchronized with the lifting movement of the functional component 72.

[0036] More specifically, the drive device 3 is equipped with a controller or microcontroller, such as a PLC controller; the main body 71 and / or functional components 72 may be equipped with detectors, such as one or more of linear displacement sensors, potentiometers, or rotary encoders. The lifting state of the lifting device 1 may include lifting speed, lifting time, or lifting height. The PLC controller generates control signals based on the obtained lifting state of the lifting device 1, and controls the drive device 3 to dynamically drive the protective device 2, realizing the switching between the deployed and retracted states of the protective device 2, and adjusting the degree of deployment or retraction of the protective device 2, so that the deployment and retraction movements of the protective device 2 are coordinated with the lifting movements of the functional components 72.

[0037] Understandably, the extension and retraction movement of the protective device 2 and the lifting and lowering movement of the functional component 72 are synchronized through the drive device 3. During the lifting and lowering process of the functional component 72, the distance between the functional component 72 and the ground changes accordingly, and the required or optimal protection range for the functional component 72 changes accordingly. Under the control of the drive device 3, the protective device 2 can adapt to the height change of the functional component 72 and dynamically adjust the degree of extension and retraction in real time, so as to protect the functional component 72 at a relatively good angle. This not only speeds up the response speed of the protective device 2, but also improves the protective effect of the protective device 2.

[0038] For example, when the lifting device 1 raises the functional component 72, the driving device 3 drives the protective device 2 to gradually and dynamically unfold, and matches the unfolded state of the protective device 2 with the rising state of the functional component 72; when the lifting device 1 lowers the functional component 72, the driving device 3 drives the protective device 2 to gradually and dynamically retract, and matches the retracted state of the protective device 2 with the lowering state of the functional component 72, thereby realizing the linkage between the protective device 2 and the lifting device 1, so that the protection range of the protective device 2 can always meet the protection requirements of the functional component 72.

[0039] In an optional embodiment, combined with Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the linkage mechanism also includes a linkage component 4, which is movably connected to the functional component 72. The protective device 2 is mounted on the linkage component 4, and the driving device 3 drives the linkage component 4 to move, so as to realize the unfolding and retraction of the protective device 2.

[0040] For example, the linkage 4 can be a shaft structure, a connecting rod structure, a support rod structure, or a folding bracket structure, etc. The linkage 4 is driven by the driving device 3 to rotate, swing, move up and down, and fold and unfold, so as to realize the unfolding and storage of the protective device 2.

[0041] Of course, the above content is only some examples of the structure of the linkage component 4. There are no restrictions on the specific structure of the linkage component 4. It can be selected according to actual needs and should all be covered within the protection scope of this application.

[0042] Understandably, the protective device 2 is mounted on the linkage 4 and connected to the drive device 3 through the linkage 4 to achieve the switching between the unfolded and retracted states. The linkage 4 serves as a transmission structure for the driving force between the drive device 3 and the protective device 2, effectively reducing the impact of overshoot during the drive process on the protective device 2, making the unfolding and retracting process of the protective device 2 more stable and smooth.

[0043] In an optional embodiment, the driving device 3 drives the linkage 4 to rotate circumferentially or move up and down to realize the unfolding and retraction of the protective device 2, so that when the functional component 72 is raised, the protective device 2 unfolds from the functional component 72; and when the functional component 72 is lowered, the protective device 2 is retracted into the functional component 72.

[0044] Specifically, in some embodiments of this application, the linkage 4 is a shaft-shaped structure, specifically a linkage shaft, which drives the circumferential rotation or vertical movement of the linkage shaft to achieve the folding and storage of the protective device 2.

[0045] More specifically, in some embodiments of this application, the functional component 72 has a receiving groove 721 that matches the shape of the protective device 2, for storing the protective device 2. The driving device 3 can rotate the protective device 2 into the receiving groove 721 by driving the linkage 4 to rotate circumferentially. The driving device 3 can also move the protective device 2 into the receiving groove 721 by driving the linkage 4 to move up and down. Accordingly, the unfolding method of the protective device 2 is not described in detail here.

[0046] Of course, there are no specific restrictions on how the protective device 2 is stored.

[0047] Understandably, the protective device 2 can be stored in the receiving slot 721, which helps reduce the space occupied around the mobile device, thereby further improving the compact design of the mobile device, maintaining the neat appearance of the mobile device, and not affecting the storage or placement of the mobile device. Moreover, after the protective device 2 is stored in the receiving slot 721, the receiving slot 721 can protect the protective device 2, making it less likely to be damaged.

[0048] In an optional embodiment, combined with Figure 1 , Figure 3 and Figure 4 As shown, the linkage mechanism also includes a support wheel 5, which is mounted on the linkage member 4 to synchronize with the retraction and extension movement of the protective device 2. The drive device 3 is used to drive the support wheel 5 to support the functional member 72 when the functional member 72 descends.

[0049] Specifically, in some embodiments of this application, two support wheels 5 are provided, which are respectively disposed on different end faces of the linkage 4. The driving device 3 is disposed on the main body 71 of the device and is drivenly connected to the linkage 4 to drive the linkage 4 to rotate and drive the support wheels 5 and the protective device 2 to swing synchronously, so that the linkage mechanism switches between the use state and the storage state. When the linkage mechanism is in the use state and / or in the use state, the support wheels 5 extend out of the functional component 72 to support the functional component 72. The protective device 2 is set at an angle to the functional component 72 to form a corresponding protective area to protect the functional component 72.

[0050] Understandably, the support wheel 5 and the protective device 2 are mounted on the linkage 4, enabling synchronous movement of the support wheel 5 and the protective device 2. The protective device 2, in turn, moves in coordination with the lifting device 1, thus achieving linkage between the support wheel 5, the protective device 2, and the lifting device 1. The support wheel 5 provides support when the functional component 72 descends, contacting the ground, and can also cooperate with the mobile device's movement mechanism (e.g., tracks) to enhance the stability of the mobile device during movement. The support wheel 5 provides support to the functional component 72 from different positions and points, improving the mobile device's adaptability to complex terrain. Furthermore, as the part directly in contact with the ground, the support wheel 5 provides cushioning and protection for the functional component 72, extending its service life.

[0051] The linkage mechanism enables the coordinated operation of the support wheel 5, protective device 2, and lifting device 1, allowing the three independent actions to work together to form a continuous and collaborative workflow. This simplifies the operation of the support wheel 5, protective device 2, and lifting device 1, and also prevents damage to functional components 72 due to the support wheel 5 or protective device 2 not deploying in tandem. Furthermore, the support wheel 5 and protective device 2 move synchronously through the linkage 4, requiring only one drive device 3 to control the output of multiple actions such as those of the support wheel 5 and protective device 2. This reduces the number of drive devices 3, making the mobile device structure more compact, lowering manufacturing costs and complexity, improving the overall stability and reliability of the mobile device, reducing control difficulty and operation steps, and optimizing the user experience.

[0052] In an optional embodiment, such as Figure 3 and Figure 4 As shown, the support wheel 5 is connected to the linkage 4 via the connector 6, and the length direction of the connector 6 forms an angle with the axial direction of the linkage 4.

[0053] For example, the angle between the length direction of the connecting member 6 and the circumferential direction of the linkage member 4 is 30 degrees to 70 degrees. Preferably, the angle between the length direction of the connecting member 6 and the circumferential direction of the linkage member 4 is 35 degrees. Of course, there is no limitation on the angle between the length direction of the connecting member 6 and the axial direction of the linkage member 4.

[0054] Understandably, the design of the connecting member 6 forming an angle with the axial direction of the linkage member 4 ensures that the extension direction of the connecting member 6 is tangent or approximately tangent to the turning radius circle of the mobile device. This angle design, combined with the structural design of the support wheel 5, enhances the steering flexibility and smoothness of the mobile device, facilitating its movement.

[0055] In an optional embodiment, such as Figure 6 As shown, the support wheel 5 includes a wheel frame 53, a first wheel body 51, and a second wheel body 52; The first wheel body 51 and the second wheel body 52 are alternately arranged along the circumferential direction of the wheel frame 53, and the axial lines of the first wheel body 51 and the second wheel body 52 are tangent to the circumferential line of the wheel frame 53.

[0056] The outer diameter of the first wheel body 51 is larger than the outer diameter of the second wheel body 52, and the first wheel body 51 and several second wheel bodies 52 are alternately rotated and connected to the wheel frame 53.

[0057] Understandably, the first wheel 51 and the second wheel 52 are alternately arranged along the circumferential direction of the wheel frame 53 and are not coplanar. The axial lines of both the first wheel 51 and the second wheel 52 are tangent to the circumference of the wheel frame 53. This design helps reduce steering resistance on soft surfaces such as grass and enhances the obstacle-crossing ability and flexibility of the support wheel 5. The design of the support wheel 5 also plays a balancing role, reducing the impact on the support of the second wheel 52 caused by changes in the angle between the support wheel 5 and the ground during movement.

[0058] In an optional embodiment, such as Figure 5 As shown, the protective device 2 includes multiple protective components 21, which are arranged along the width direction of the main body 71 of the equipment, and the adjacent protective components 21 form a tooth gap 22 for combing weeds.

[0059] Preferably, each protective component 21 has a gradually decreasing outer diameter in the direction away from the driving component 31, and the spacing between adjacent protective components 21 is the same.

[0060] Understandably, the arrangement of multiple protective components 21 along the width of the equipment body 71 enhances the coordination and consistency of movement between each protective component 21 and the lifting device 1 and support wheels 5, thereby achieving a good protective effect. The toothed gaps 22 formed between adjacent protective components 21 not only prevent obstacles such as stones from damaging the mowing mechanism but also allow weeds to pass through, combing, squeezing, and guiding their direction, facilitating subsequent cutting by the mowing mechanism. Furthermore, the toothed gaps 22 can guide weeds, reducing the possibility of long grass stems entangled in the mowing mechanism, further enhancing the protective function of the mowing mechanism.

[0061] In an optional embodiment, such as Figure 4 As shown, the drive device 3 includes a drive component 31 and a connecting rod 32; For example, the drive element 31 can be a motor, an electric push rod, a hydraulic cylinder, or a telescopic cylinder. Of course, there are no restrictions on the specific implementation structure of the drive element 31.

[0062] The linkage 4 is provided with a first connecting part 41, the connecting rod 32 is connected to the first connecting part 41, and the output end of the drive component 31 is connected to the connecting rod 32, so as to drive the linkage 4 to drive the support wheel 5 and the protective device 2 to move synchronously according to the lifting state of the functional component 72.

[0063] Understandably, when the driving component 31 extends, it pushes the first connecting part 41 through the connecting rod 32, causing the first connecting part 41 and the linkage 4 to rotate around the axis of the linkage 4 by a certain angle, thus causing the support wheel 5 and the protective device 2 to swing away from the driving component 31, i.e., swing upwards. When the driving component 31 shortens, it pulls the first connecting part 41 through the connecting rod 32, causing the first connecting part 41 and the linkage 4 to rotate around the axis of the linkage 4 by a certain angle, thus causing the support wheel 5 and the protective device 2 to swing towards the driving component 31, i.e., swing downwards. The arrangement of the connecting rod 32 and the first connecting part 41 optimizes the installation direction of the driving component 31, effectively saving vertical space and achieving a compact design. Furthermore, the connection and force transmission between the connecting rod 32 and the first connecting part 41 are relatively smooth, thus enabling the support roller and the protective device 2 to achieve good stability during rotation.

[0064] In an optional embodiment, such as Figure 4 As shown, the linkage mechanism also includes an elastic element 43 and a second connecting part 42; the second connecting part 42 is located at the end of the linkage element 4 away from the first connecting part 41, one end of the elastic element 43 is connected to the second connecting part 42, and the other end is connected to the main body of the device 71.

[0065] The elastic element 43 can be a torsion spring or other elastic structures such as springs or elastic bands. There are no restrictions on the specific implementation structure of the elastic element 43.

[0066] Understandably, the elastic element 43 connects the linkage 4 to the equipment body 71, allowing the support wheel 5 to adapt to changes in its angle with the ground during oscillation, thus ensuring more sufficient contact between the support wheel 5 and the ground. Furthermore, the elastic element 43 is connected to the end furthest from the first connecting part 41, which helps maintain the stability of the linkage 4. Specifically, during the rotation of the linkage 4, the elastic element 43 deforms or returns to its original shape, thereby applying force to the second connecting part 42. This prevents the linkage 4 from being subjected to force on only one side, resulting in a smoother movement of the linkage 4 when driven by the drive device 3, and consequently reducing the vibration amplitude of the support wheel 5 and the protective device 2 driven by the linkage 4.

[0067] This application also provides a lawnmower, including one of the linkage mechanisms described above.

[0068] By setting up a linkage mechanism, the effective coordination of the extension and retraction movement of the protective device 2, the lifting movement of the lifting device 1, and the supporting function of the support wheel 5 is achieved, which enhances the effectiveness of the protection of the mowing components and simplifies the adjustment of the protective device 2, the lifting device 1, and the support wheel 5 when using the lawnmower, thus helping to optimize the user experience.

[0069] The embodiments of this application have at least the following beneficial effects: This application provides a linkage mechanism and a lawnmower. A lifting device 1 is mounted on the main body 71 and is movably connected to a functional component 72, allowing the functional component 72 to rise and fall relative to the main body 71. A protective device 2 is movably mounted on the functional component 72. Through a drive device 3, the protective device 2 can be extended or retracted relative to the functional component 72, achieving effective coordination between the extension / retraction movement of the protective device 2 and the lifting / retraction movement of the functional component 72. The protective device 2 can adapt to the lifting / retraction height of the functional component 72, optimizing the user experience and improving safety performance.

[0070] Those skilled in the art will understand that the accompanying drawings are merely schematic diagrams of a preferred embodiment, and the modules or processes shown in the drawings are not necessarily essential for implementing this application.

[0071] Those skilled in the art will understand that the modules in the apparatus of the implementation scenario can be distributed within the apparatus of the implementation scenario as described, or they can be located in one or more apparatuses different from this implementation scenario, with corresponding changes. The modules of the above-described implementation scenario can be combined into one module, or they can be further divided into multiple sub-modules.

[0072] The serial numbers in this application are for descriptive purposes only and do not represent the superiority or inferiority of the implementation scenario.

[0073] The above disclosures are only a few specific implementation scenarios of this application. However, this application is not limited to these. Any variations that can be conceived by those skilled in the art should fall within the protection scope of this application.

Claims

1. A linkage mechanism characterised in that, For a mobile device, the mobile device includes a device body and functional components, and the linkage mechanism includes: A lifting device is installed on the main body of the equipment and is movably connected to the functional component; The protective device is movably mounted on the functional component; A drive device is provided on the functional component and is connected to the protective device so that the retraction and extension movement of the protective device is synchronized with the lifting and lowering movement of the functional component.

2. The linkage mechanism of claim 1, wherein The linkage mechanism also includes a linkage component, which is movably connected to the functional component. The protective device is mounted on the linkage component, and the driving device drives the linkage component to move, thereby enabling the protective device to unfold and retract.

3. The linkage mechanism of claim 2, wherein, The driving device drives the linkage to rotate circumferentially or move up and down, so as to realize the deployment and storage of the protective device, so that when the functional component is raised, the protective device is deployed from the functional component; and when the functional component is lowered, the protective device is stored in the functional component.

4. The linkage of claim 2, wherein, The linkage mechanism also includes a support wheel, which is mounted on the linkage member to synchronize with the retraction and extension movement of the protective device. The drive device is used to drive the support wheel to support the functional component when the functional component descends.

5. The linkage mechanism of claim 4, wherein, The support wheel is connected to the linkage via a connector, and the length direction of the connector forms an angle with the axial direction of the linkage.

6. A linkage mechanism according to claim 4, wherein The support wheel includes a wheel frame, a first wheel body, and a second wheel body; The first wheel and the second wheel are alternately arranged along the circumferential direction of the wheel frame, and the axial lines of the first wheel and the second wheel are both tangent to the circumference of the wheel frame.

7. The linkage of claim 1, wherein, The protective device includes multiple protective components arranged along the width of the main body of the equipment, with adjacent protective components forming gaps for combing weeds.

8. The linkage of claim 2, wherein, The driving device includes a driving component and a connecting rod; The linkage is provided with a first connecting part, the connecting rod is connected to the first connecting part, and the output end of the drive component is connected to the connecting rod, so as to drive the linkage to drive the support wheel to move synchronously with the protective device according to the lifting state of the functional component.

9. The linkage of claim 8, wherein, The linkage mechanism also includes an elastic element and a second connecting part; The second connecting part is disposed at the end of the linkage member away from the first connecting part, and one end of the elastic member is connected to the second connecting part, and the other end is connected to the main body of the device.

10. A lawnmower characterised in that, The linkage mechanism includes any one of claims 1 to 9.

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