Blade dismounting and mounting structure and intelligent mower

Abstract

The utility model provides a blade dismounting and mounting structure and an intelligent mower, and belongs to the technical field of mowers. The locking assembly comprises an operating part, and when the operating part rotates around the center line of the base relative to the base, the locking assembly can be switched between a locking state and an unlocking state; one of the operating piece and the base is provided with a locking piece fixedly connected with the operating piece or the base, and the other one is provided with a slot; the slot comprises a locking slot and an unlocking slot, and the locking slot is communicated with the unlocking slot; when the locking assembly is in the locking state, the locking piece is located in the locking groove. When the locking assembly is in the unlocking state, the locking piece has a first working condition and a second working condition, under the first working condition, the locking piece is located in the unlocking groove, and the operating piece can move in the first direction relative to the base; and under the second working condition, the locking piece slides out of the unlocking groove, so that the blade can be detached from the mounting space. The risk that the blade is stuck during disassembly and assembly is reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of lawn mowers, and in particular to a blade disassembly and assembly structure and an intelligent lawn mower. Background Art

[0002] Traditional lawn mower blades are typically secured using a combination of nuts and bolts. While this installation method ensures blade stability during operation, it presents several inconveniences. In practice, users must use tools (such as wrenches) to tighten the nuts to secure the blades to the mower's cutterhead. However, this installation method is cumbersome, especially when frequent blade changes are required. It is not only time-consuming and labor-intensive, but can also pose safety risks due to improper handling, such as injuries caused by improper tool use during removal and installation.

[0003] Some blade assembly and disassembly mechanisms exist in the related art, aiming to achieve rapid installation and removal of blades through quick-release components. However, these blade assembly and disassembly mechanisms are often complex, involving the coordination of multiple components. Over time, these components wear and become misaligned, leading to a decrease in the precision of their coordination and, consequently, to jamming, preventing the blade from being smoothly installed and removed. Utility Model Content

[0004] In order to overcome the problems existing in the related art, this specification provides a blade disassembly and assembly structure and an intelligent lawn mower, which reduces the risk of the blade getting stuck during disassembly and assembly.

[0005] According to a first aspect of the present disclosure, a blade disassembly and assembly structure is provided for connecting a blade to a cutter disc, comprising:

[0006] base;

[0007] a locking assembly connected to the base, the locking assembly comprising an operating member, the operating member being located on one side of the base in the first direction and being detachably connected to the base, the operating member and the periphery of the base jointly defining an installation space for installing the blade;

[0008] wherein, when the operating member rotates relative to the base around the center line of the base, the locking assembly can switch between a locked state and an unlocked state, and the center line of the base is parallel to the first direction;

[0009] The operating member and the base are sleeved with each other, one of the operating member and the base is provided with a locking member fixedly connected to the operating member or the base, and the other is provided with a slot for inserting the locking member;

[0010] The slot includes a locking slot and an unlocking slot, and the locking slot and the unlocking slot are in communication;

[0011] When the locking assembly is in the locked state, the locking member is located in the locking groove, and the locking groove limits the relative movement distance of the operating member and the base in the first direction, thereby confining the blade within the installation space;

[0012] When the locking assembly is in the unlocked state, the locking member has a first working condition and a second working condition. In the first working condition, the locking member is located in the unlocking groove, and the operating member can move along the first direction relative to the base; in the second working condition, the locking member slides out of the unlocking groove, and the operating member is separated from the base, so that the blade can be removed from the installation space.

[0013] The blade assembly and disassembly mechanism disclosed herein comprises a base and a locking assembly. The locking assembly's operating member is detachably connected to the base and can be switched between locked and unlocked states by rotating. This design eliminates the traditional, complex bolt-on fastening method, allowing users to install and remove the blade with a simple rotating motion, without the need for additional tools.

[0014] Secondly, the interlocking design of the operating member and base, as well as the coordination of the locking member and slot, further optimize the stability and reliability of the structure. When locked, the locking member is firmly embedded in the locking slot, ensuring that the blade will not loosen during use and ensuring safe mowing operations. When unlocked, the locking member can smoothly slide in the unlocking slot, allowing the operating member and base to be separated smoothly, thereby achieving quick removal of the blade.

[0015] In addition, the locking member is fixedly connected to the operating member or the base. This fixed connection method ensures the relative position stability and structural rigidity between the locking member and the operating member or the base. During the installation and use of the blade, the locking member will not be displaced or loosened due to external forces, thereby ensuring the reliability of the locked state. In the unlocked state, the fixedly connected locking member can provide a stable motion guide for the operating member. When the operating member rotates around the center line of the base, the locking member slides smoothly along the contour of the slot, allowing the operating member to smoothly switch from the locked state to the unlocked state, or from the unlocked state to the locked state. This stable motion guide reduces jamming and resistance during operation, reduces the risk of jamming due to improper fitting of parts, and improves the efficiency and reliability of blade disassembly and assembly.

[0016] Furthermore, the fixed connection between the locking member and the operating member or base simplifies the overall structure and reduces the number of parts. Compared with some complex quick-release structures, this design avoids the use of additional connecting parts, reducing production costs and assembly difficulty.

[0017] In some exemplary embodiments of the present disclosure, the operating member is a hollow shell with an opening at the bottom end, and the operating member is disposed on the periphery of the base through the opening at the bottom end;

[0018] The locking member is provided on the inner wall of the operating member, and the slot is provided on the periphery of the base;

[0019] The unlocking slot is open on a side facing the operating member, so that when the locking assembly is in the unlocked state, the locking member can slide out of the unlocking slot under the second working condition;

[0020] The side of the locking groove facing the operating member is a closed opening, so that when the locking assembly is in a locked state, the locking groove can limit the relative movement distance of the operating member and the base in the first direction.

[0021] In this type of embodiment, the operating member adopts a hollow shell design with an opening at the bottom, and is disposed on the periphery of the base through its bottom opening. This structure not only provides a clear installation space for the blade, but also makes the entire disassembly and assembly structure more compact and integrated. The locking member is arranged on the inner wall of the operating member, while the slot is opened on the periphery of the base. This design makes the fit between the locking member and the slot more precise and stable. The open opening design of the unlocking slot facilitates the smooth sliding of the locking member in the unlocked state, ensuring that the operating member can be easily separated from the base, thereby realizing the rapid disassembly of the blade; while the closed opening of the locking slot effectively limits the movement of the operating member in the locked state, preventing it from separating from the base, thereby ensuring the stability of the blade during use. This design optimizes the installation and disassembly process of the blade, and improves the convenience and reliability of operation.

[0022] In some exemplary embodiments of the present disclosure, the locking member is a locking protrusion, and the locking protrusion is integrally formed with the operating member.

[0023] In this type of embodiment, there are no additional connection points between the integrally molded locking member and the operating member, thereby reducing the risk of jamming or other malfunctions caused by loose or damaged connections. Furthermore, the integrally molded design allows for a tighter fit between the locking member and the operating member, further improving the precision and smoothness of the locking and unlocking actions, and ensuring the stability and durability of the blade assembly and disassembly mechanism over long-term use.

[0024] In some exemplary embodiments of the present disclosure, the operating member is a hollow shell with an opening at the bottom end, and the operating member is disposed on the periphery of the base through the opening at the bottom end;

[0025] The locking member is provided on the periphery of the base, and the slot is provided on the inner wall of the operating member;

[0026] The unlocking slot has an open opening on one side close to the base, so that when the locking assembly is in the unlocked state, the locking member can slide out of the unlocking slot under the second working condition;

[0027] The side of the locking groove away from the second end of the operating member is a closed opening, so that when the locking assembly is in a locked state, the locking groove can limit the relative movement distance of the operating member and the base in the first direction.

[0028] In this type of embodiment, the locking member is arranged on the periphery of the base, while the slot is opened on the inner wall of the operating member. This design can also realize the function of quick installation and removal of the blade, but provides different structural options to meet different design requirements and application scenarios. The open opening design of the unlocking slot close to the side of the base allows the locking member to slide out of the unlocking slot smoothly in the unlocking state, thereby realizing the separation of the operating member and the base; while the closed opening design of the locking slot away from the side of the second end of the operating member effectively limits the movement of the operating member in the locked state, preventing it from separating from the base, and ensuring the stability of the blade during use. This design provides more flexibility for the blade disassembly and assembly structure, while also ensuring the reliability and stability of its function.

[0029] In some exemplary embodiments of the present disclosure, the locking member is a locking protrusion, and the locking protrusion is integrally formed with the base.

[0030] In this type of embodiment, there are no additional connection points between the integrally molded locking member and the base, thereby reducing the risk of jamming or other malfunctions caused by loose or damaged connections. Furthermore, the integrally molded design provides a tighter fit between the locking member and the base, further improving the precision and smoothness of locking and unlocking, and ensuring the stability and durability of the blade assembly and disassembly mechanism over long-term use.

[0031] In some exemplary embodiments of the present disclosure, the locking groove and the unlocking groove are connected via a sliding groove;

[0032] When the operating member rotates relative to the base around the center line of the base, the locking member can slide along the sliding groove to switch between the locking groove and the unlocking groove, so that the locking assembly switches between the locked state and the unlocked state.

[0033] In this embodiment, the design of a sliding groove connecting the locking and unlocking grooves further simplifies the operation process. When installing and removing the blade, the user can switch between locking and unlocking with a simple rotation operation, without the need for complex steps or additional tools. In addition, the provision of a sliding groove provides a clear guide for the rotation of the operating member, allowing the locking member to move smoothly along the preset path during the rotation of the operating member, thereby ensuring the accuracy and consistency of the locking and unlocking actions.

[0034] In some exemplary embodiments of the present disclosure, the unlocking slot extends along the first direction;

[0035] The sliding groove has a first end connected to the locking groove and a second end connected to the unlocking groove. The line between the center point of the first end of the sliding groove and the center point of the second end of the sliding groove has a first angle with the sliding direction of the operating member from the unlocking groove. The first angle is greater than 90° and less than or equal to 145°.

[0036] In this embodiment, the shape and angle of the sliding slot allow the operating member to gradually increase its distance from the base during rotation from the locked state to the unlocked state. This design not only provides more space for the user to operate, but also ensures greater safety during operation.

[0037] Specifically, when the user needs to remove the blade, the rotation of the operating member causes the locking member to move along the sliding groove from the locking slot to the unlocking slot. During this process, the distance between the operating member and the base gradually increases, providing more space for the user's fingers or tools to operate. This design reduces obstacles and inconveniences that the user may encounter during operation, making the removal process easier and more intuitive. The user no longer needs to perform complex operations in a cramped space, reducing fatigue and the risk of misoperation caused by difficult operations.

[0038] The increased operating space also improves operational safety. When removing the blade, the user can hold the operating member more firmly, avoiding the possibility of the hand slipping and accidentally colliding with the blade due to insufficient operating space, thus reducing possible safety hazards.

[0039] In some exemplary embodiments of the present disclosure, the sliding groove includes a first transverse groove, an oblique guide groove and a second transverse groove connected in sequence, the extension direction of the first transverse groove and the extension direction of the second transverse groove are perpendicular to the first direction, the extension direction of the oblique guide groove and the sliding direction of the operating member from the unlocking groove have a second angle, and the second angle is greater than 90° and less than 150°.

[0040] In this embodiment, the first transverse groove, the oblique guide groove, and the second transverse groove are provided in the sliding groove, further optimizing the operating experience of the blade assembly and disassembly mechanism. This design not only provides a clear movement path for the locking member but also provides the user with a noticeable click during operation, significantly enhancing the intuitiveness and convenience of operation.

[0041] Specifically, the first and second transverse grooves extend perpendicular to the first direction, ensuring a smooth transition between the locking member and the unlocking slot. The oblique guide groove plays a crucial guiding role, extending in a direction that forms a second angle greater than 90° and less than 150° with the direction in which the operating member slides out of the unlocking slot. This angled design not only ensures smooth sliding of the locking member within the oblique guide groove but also provides clear feedback to the user during operation.

[0042] As the user rotates the operating member, the locking member moves from the locking slot to the angled guide slot and then from the angled guide slot to the unlocking slot, with a noticeable pause. This pause, caused by the transition between the different slot segments, provides clear operational feedback, allowing the user to intuitively sense the position change of the locking member. This design allows the user to accurately determine when the unlocking action is complete without relying on visual confirmation, thereby improving operational efficiency and accuracy.

[0043] In some exemplary embodiments of the present disclosure, the base is provided with a mounting channel, and the mounting channel extends along the first direction;

[0044] The locking assembly further includes an elastic member, which is disposed in the mounting channel and elastically abuts between the operating member and the base;

[0045] The side of the installation channel away from the operating member is a closed opening, one end of the elastic member abuts against the closed opening, and the other end passes through the open opening of the installation channel close to the operating member and abuts against the operating member;

[0046] When the locking assembly is in the locked state, the operating member covers the open opening of the installation channel on a side close to the operating member.

[0047] In this embodiment, the mounting channel is designed so that the side away from the operating member is closed, while the operating member covers the open side of the mounting channel near the operating member. This structural design effectively prevents grass clippings, dust, and other impurities from entering the mounting channel, significantly improving the reliability and durability of the blade assembly and disassembly mechanism.

[0048] In actual use, lawn mowers generate a large amount of grass clippings and dust. If these impurities enter the installation channel, they may cause elastic components (such as springs) to become stuck, deform, or lose their elasticity, thereby affecting the proper functioning of the locking assembly. In this embodiment, the closed opening design and the covering effect of the operating member form a physical barrier to prevent the intrusion of impurities. This design not only reduces the risk of malfunction caused by the ingress of impurities but also extends the service life of the elastic component and the entire locking assembly.

[0049] In some exemplary embodiments of the present disclosure, a mounting channel is provided through the base, and the mounting channel extends along the first direction;

[0050] The locking assembly further includes an elastic member, which is disposed in the mounting channel and elastically abuts between the operating member and the base;

[0051] The locking assembly further includes a limiting member, which is detachably closed to close an opening of the installation channel on a side away from the operating member, and the elastic member abuts against the base via the limiting member;

[0052] When the locking assembly is in the locked state, the operating member covers the open opening of the installation channel on a side close to the operating member.

[0053] In this embodiment, a retaining member closes the side of the installation channel away from the operating member, while the operating member covers the opening on the side of the installation channel near the operating member, effectively sealing the installation channel. This design not only effectively prevents debris, dust, and other impurities from entering the installation channel, thereby protecting the elastic member and other key components within from contamination and damage, but also facilitates cleaning of the installation channel through the removable retaining member.

[0054] Specifically, during actual use, a lawn mower is exposed to large amounts of grass clippings, sand, and dust. If these impurities enter the installation channel, they can cause elastic components (such as springs) to become stuck, deform, or lose their elasticity, thereby affecting the proper functioning of the locking assembly. The stopper seals the installation channel, and the operating member covers the opening, creating a double barrier of protection that effectively prevents the intrusion of impurities. This sealing design significantly improves the reliability and durability of the blade assembly and disassembly mechanism, reduces the risk of failure due to impurities, and extends the service life of the elastic component and the entire locking assembly.

[0055] Furthermore, the removable retainer design greatly facilitates cleaning and maintenance of the mounting channel. If foreign matter accidentally enters the mounting channel, the user can easily remove the retainer to clean the mounting channel. This design not only reduces maintenance complexity but also reduces the risk of long-term damage caused by difficult-to-clean items.

[0056] In some exemplary embodiments of the present disclosure, the locking assembly further includes a reset pin, and the elastic member abuts against the operating member through the reset pin.

[0057] In this type of embodiment, the elastic member abuts against the operating member through a reset pin. This design further optimizes the connection between the elastic member and the operating member, so that the elastic force can be transmitted to the operating member more evenly, thereby improving the stability of the operating member during the locking and unlocking process.

[0058] In some exemplary embodiments of the present disclosure, the installation channel includes a first channel and a second channel that are interconnected, the first channel is located on a side of the second channel close to the operating member, and the inner diameter of the first channel is smaller than the inner diameter of the second channel;

[0059] The elastic member is disposed in the second channel, and the reset pin is at least partially disposed in the first channel;

[0060] The blade has a top surface and a bottom surface that are arranged opposite to each other. When the blade is installed on the blade disc by the blade disassembly and assembly structure, the operating member is located on the bottom surface side of the blade, and the second channel is located on the top surface side of the blade.

[0061] In this embodiment, the larger second channel is positioned on the top surface of the blade, allowing it to connect to the periphery of the smaller first channel on the base. This layout allows for a smaller aperture in the blade, thereby improving the blade's structural strength and durability. The smaller aperture reduces stress concentration points during use, reducing the risk of damage from high-speed rotation or external impact. This not only extends the blade's service life but also improves the safety and reliability of mowing operations.

[0062] Furthermore, the placement of the larger second channel on the top surface of the blade provides ample space for the elastic member. This design allows the elastic member to be stably installed within the second channel, providing reliable elastic support for the operating member. The stable installation of the elastic member not only improves the reliability of the locking assembly but also reduces the risk of failure caused by wobbling or deformation of the elastic member. Furthermore, the larger second channel facilitates maintenance and replacement of the elastic member.

[0063] In some exemplary embodiments of the present disclosure, the reset pin includes a first segment, a second segment, and a third segment connected in sequence, and the outer diameters of the first segment and the third segment are both smaller than the outer diameter of the second segment;

[0064] The first segment is inserted into the first channel, the second segment and the third segment are inserted into the second channel, and the third segment is sleeved with the elastic member;

[0065] The outer diameter of the first segment is adapted to the inner diameter of the first channel, and the outer diameter of the second segment is adapted to the inner diameter of the second channel.

[0066] In this type of embodiment, the first segment is arranged in the first channel, the second segment and the third segment are arranged in the second channel, and the third segment is sleeved with the elastic member. This layout makes the connection between the elastic member and the reset pin tighter, and the elastic force can be transmitted to the reset pin more evenly, further improving the stability and reliability of the reset pin.

[0067] The outer diameter of the first segment is adapted to the inner diameter of the first channel, and the outer diameter of the second segment is adapted to the inner diameter of the second channel. This design enables the reset pin to slide stably in the installation channel, reducing the wear and shaking of the reset pin during use, extending the service life of the reset pin, and improving the overall performance of the blade disassembly and assembly structure.

[0068] According to a second aspect of the present disclosure, there is provided an intelligent lawn mower, comprising:

[0069] knife disc;

[0070] A driving assembly, driving the cutter disc to rotate;

[0071] The blade disassembly and assembly structure as described in the first aspect is connected to the cutter disc and is used to connect the blade to the cutter disc.

[0072] The smart lawn mower disclosed herein uses a blade assembly and disassembly mechanism to secure the blade to the cutterhead. The mechanism includes a base and a locking assembly. The locking assembly's operating element is detachably connected to the base and can be locked and unlocked by rotating. This design eliminates the traditional, complex bolt-based fixing method, allowing users to install and remove the blade with a simple rotation, without the need for additional tools.

[0073] Secondly, the interlocking design of the operating member and base, as well as the coordination of the locking member and slot, further optimize the stability and reliability of the structure. When locked, the locking member is firmly embedded in the locking slot, ensuring that the blade will not loosen during use and ensuring safe mowing operations. When unlocked, the locking member can smoothly slide in the unlocking slot, allowing the operating member and base to be separated smoothly, thereby achieving quick removal of the blade.

[0074] In addition, the locking member is fixedly connected to the operating member or the base. This fixed connection method ensures the relative position stability and structural rigidity between the locking member and the operating member or the base. During the installation and use of the blade, the locking member will not be displaced or loosened due to external forces, thereby ensuring the reliability of the locked state. In the unlocked state, the fixedly connected locking member can provide a stable motion guide for the operating member. When the operating member rotates around the center line of the base, the locking member slides smoothly along the contour of the slot, allowing the operating member to smoothly switch from the locked state to the unlocked state, or from the unlocked state to the locked state. This stable motion guide reduces jamming and resistance during operation, reduces the risk of jamming due to improper fitting of parts, and improves the efficiency and reliability of blade disassembly and assembly.

[0075] Furthermore, the fixed connection between the locking member and the operating member or base simplifies the overall structure and reduces the number of parts. Compared with some complex quick-release structures, this design avoids the use of additional connecting parts, reducing production costs and assembly difficulty.

[0076] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0077] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the specification and, together with the description, serve to explain the principles of the specification.

[0078] Figure 1 It is a schematic structural diagram of an intelligent lawn mower in an exemplary embodiment of the present disclosure.

[0079] Figure 2 It is a schematic cross-sectional view of the blade disassembly and assembly structure in an exemplary embodiment of the present disclosure.

[0080] Figure 3 It is a schematic diagram of the exploded structure of the blade disassembly and assembly structure in an exemplary embodiment of the present disclosure.

[0081] Figure 4 It is a schematic diagram of the structure of the operating member in an exemplary embodiment of the present disclosure.

[0082] Figure 5 It is a schematic diagram of the base structure in an exemplary embodiment of the present disclosure.

[0083] Figure 6 It is a schematic diagram of the slot structure in an exemplary embodiment of the present disclosure.

[0084] Figure 7 It is another structural schematic diagram of the slot in the exemplary embodiment of the present disclosure.

[0085] Figure 8It is a structural schematic diagram of the blade disassembly and assembly structure connected to the cutter disc in an exemplary embodiment of the present disclosure.

[0086] Figure 9 It is a schematic cross-sectional view of the blade disassembly and assembly structure in another exemplary embodiment of the present disclosure.

[0087] Figure 10 It is a schematic diagram of the exploded structure of the blade disassembly and assembly structure in another exemplary embodiment of the present disclosure.

[0088] Figure 11 It is a schematic diagram of the structure of an operating member in another exemplary embodiment of the present disclosure.

[0089] Figure 12 It is a schematic diagram of the base structure in another exemplary embodiment of the present disclosure.

[0090] Figure 13 2 is a schematic diagram of a reset pin structure in another exemplary embodiment of the present disclosure.

[0091] Figure 14 It is a structural schematic diagram of another exemplary embodiment of the present disclosure in which a blade disassembly and assembly structure is connected to a cutter disc.

[0092] Description of Reference Numerals

[0093] 10-blade disassembly and assembly structure; 20-blade; 30-blade disc; 100-base; 110-slot; 111-locking slot; 112-unlocking slot; 113-sliding slot; 1131-first transverse slot; 1132-oblique guide slot; 1133-second transverse slot; 120-installation channel; 121-first channel; 122-second channel; 200-locking assembly; 210-operating member; 211-locking member; 220-elastic member; 230-limiting member; 240-reset pin; 241-first segment; 242-second segment; 243-third segment; Y-first direction; α-first angle; β-second angle. DETAILED DESCRIPTION

[0094] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent identical or similar structures, and thus their detailed descriptions will be omitted. Furthermore, the figures are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale.

[0095] Although relative terms such as "upper" and "lower" are used in this specification to describe the relationship of one illustrated component to another, these terms are used herein for convenience only, such as in accordance with the orientation of the illustrations in the accompanying drawings. It will be understood that if the illustrated device were flipped upside down, the component described as "upper" would become the component "lower." When a structure is referred to as "on" another structure, this may mean that the structure is integrally formed with the other structure, that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via the other structure.

[0096] The terms "a", "an", "the", "said" and "at least one" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express open-ended inclusion and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.; the terms "first", "second" and "third" etc. are used only as labels and are not intended to limit the quantity of their objects.

[0097] In this disclosure, terms such as "perpendicular" and "equal" refer to perpendicularity and equality within the range of process tolerance, not absolute perpendicularity and equality. Process tolerance can be within ±10% or ±5%. For example, if a first direction and a second direction are perpendicular, it can be understood that the angle between the first direction and the second direction can be 90°±5°.

[0098] like Figures 1 to 3 、 Figure 9 、 Figure 10 As shown, an embodiment of the present disclosure provides a blade assembly and disassembly structure 10 for connecting a blade 20 to a cutterhead 30, which can be used in a smart lawn mower. The blade assembly and disassembly structure 10 includes a base 100 and a locking assembly 200. The base 100 can be connected to the cutterhead 30, and the locking assembly 200 can be used to connect or remove the blade 20 from the cutterhead 30 by cooperating with the base 100.

[0099] The following is a detailed description of the various parts of the blade disassembly and assembly structure 10 provided in the embodiment of the present disclosure with reference to the accompanying drawings:

[0100] like Figures 1 to 3 、 Figure 9 、 Figure 10As shown, the blade disassembly and assembly structure 10 provided by the present disclosure includes a base 100 and a locking assembly 200. The locking assembly 200 is connected to the base 100 and includes an operating member 210. The operating member 210 is located on one side of the base 100 in the first direction Y and is detachably connected to the base 100. The operating member 210 and the periphery of the base 100 together define an installation space for installing a blade 20. When the operating member 210 is connected to the base 100, the blade 20 can be confined within the installation space. When the operating member 210 is removed from the base 100, the blade 20 can be pulled out of the installation space.

[0101] When the operating member 210 rotates relative to the base 100 about the centerline of the base 100, the locking assembly 200 can switch between a locked state and an unlocked state, with the centerline of the base 100 being parallel to the first direction Y. When the locking assembly 200 is in the locked state, the operating member 210 is connected to the base 100 and cannot move relative to the base 100 in the first direction Y to separate from the base 100, thereby being confined to the base 100 and the blade 20 being confined within the installation space. When the locking assembly 200 is in the unlocked state, in a first operating condition, the operating member 210 can move relative to the base 100 in the first direction Y. In a second operating condition, the operating member 210 separates from the base 100, allowing the blade 20 to be removed from the installation space.

[0102] In the present disclosure, the base 100 and the locking assembly 200 may have various structural compositions, which will be described in detail below with reference to specific embodiments.

[0103] In some embodiments, as Figures 2 to 5 、 Figure 8 As shown, the operating member 210 and the base 100 are sleeved together. One of the operating member 210 and the base 100 is provided with a locking member 211 fixedly connected to the operating member 210 or the base 100, and the other is provided with a slot 110 for inserting the locking member 211.

[0104] It should be noted that the locking member 211 is fixedly connected to the corresponding base 100 or operating member 210, and the fixed connection method can be welding, riveting or integrated design. Preferably, the locking member 211 and the corresponding base 100 or operating member 210 can adopt an integrated design.

[0105] In this embodiment, this fixed connection ensures the relative positional stability and structural rigidity between the locking member 211 and the operating member 210 or base 100. During installation and use of the blade 20, the locking member 211 will not be displaced or loosened due to external forces, thereby ensuring the reliability of the locked state. In the unlocked state, the fixedly connected locking member 211 can provide a stable motion guide for the operating member 210. This stable motion guide reduces jamming and resistance during operation, reduces the risk of jamming due to improper component matching, and improves the efficiency and reliability of the assembly and disassembly of the blade 20.

[0106] The slot 110 includes a locking slot 111 and an unlocking slot 112, which are connected to each other. When the locking assembly 200 is in the locked state, the locking member 211 is located in the locking slot 111, and the locking slot 111 limits the relative movement distance of the operating member 210 and the base 100 in the first direction Y, thereby confining the blade 20 within the installation space.

[0107] When the locking assembly 200 is in the unlocked state, the locking member 211 has a first working condition and a second working condition. In the first working condition, the locking member 211 is located in the unlocking groove 112, and the operating member 210 can move along the first direction Y relative to the base 100; in the second working condition, the locking member 211 slides out of the unlocking groove 112, and the operating member 210 is separated from the base 100, so that the blade 20 can be removed from the installation space.

[0108] The locking member 211 may be provided on the base 100 or the operating member 210, and this disclosure does not limit this. Figures 2 to 5 As shown, the locking member 211 is provided on the operating member 210. The operating member 210 is a hollow shell with an open bottom end. The operating member 210 is provided on the periphery of the base 100 through the bottom opening. The locking member 211 is provided on the inner wall of the operating member 210, and the slot 110 is provided on the periphery of the base 100.

[0109] The unlocking slot 112 is open on the side facing the operating member 210, so that when the locking assembly 200 is in the unlocked state, the locking member 211 can slide out of the unlocking slot 112 in the second working state. The locking slot 111 is closed on the side facing the operating member 210, so that when the locking assembly 200 is in the locked state, the locking slot 111 can limit the relative movement distance of the operating member 210 and the base 100 in the first direction Y.

[0110] Optionally, the locking member 211 is a locking projection, which is integrally formed with the operating member 210. Specifically, the two can be formed together through an injection molding process. The integrally formed locking member 211 and the operating member 210 do not have any additional connection points, thereby reducing the risk of jamming or other malfunctions caused by loose or damaged connections. Furthermore, the integrally formed design also ensures a tighter fit between the locking member 211 and the operating member 210, further improving the precision and smoothness of the locking and unlocking actions, and ensuring the stability and durability of the blade assembly and disassembly structure 10 during long-term use.

[0111] Of course, the locking member can also be provided on the base 100 (not shown). The operating member 210 is a hollow shell with an open bottom end. The operating member 210 is provided on the periphery of the base 100 through the bottom opening. The locking member is provided on the periphery of the base 100, and the slot is provided on the inner wall of the operating member 210.

[0112] The unlocking slot is open on the side closest to the base 100, allowing the locking member to slide out of the unlocking slot under the second operating condition when the locking assembly 200 is unlocked. The locking slot is closed on the side away from the second end of the operating member 210, limiting the relative movement of the operating member 210 and the base 100 in the first direction Y when the locking assembly 200 is locked.

[0113] Similarly, the locking member can be a locking protrusion, which is integrally formed with the base 100. This integrally formed locking member eliminates additional connection points with the base 100, thereby reducing the risk of jamming or other malfunctions caused by loose or damaged connections. Furthermore, the integrally formed design provides a tighter fit between the locking member and the base 100, further improving the precision and smoothness of the locking and unlocking actions, and ensuring the stability and durability of the blade assembly and disassembly structure 10 during long-term use.

[0114] When the operating member 210 rotates, the locking member 211 can be switched between the locking groove 111 and the unlocking groove 112. For example, Figure 5 As shown, the locking groove 111 and the unlocking groove 112 are connected by a sliding groove 113. When the operating member 210 rotates relative to the base 100 around the center line of the base 100, the locking member 211 can slide along the sliding groove 113 to switch between the locking groove 111 and the unlocking groove 112, so that the locking assembly switches between the locked state and the unlocked state.

[0115] The shape design of the sliding groove 113 can be set according to actual needs. Figure 6As shown, the unlocking slot 112 extends along the first direction Y. The sliding slot 113 has a first end connected to the locking slot 111 and a second end connected to the unlocking slot 112. The line connecting the center point of the first end of the sliding slot 113 and the center point of the second end of the sliding slot 113 forms a first angle α with the direction in which the operating member 210 slides out of the unlocking slot 112. The first angle α is greater than 90° and less than or equal to 145°. The first angle α can be 105°, 110°, 115°, 120°, 125°, 130°, 135°, 140°, or 145°, but is not limited thereto.

[0116] In this embodiment, during the process of switching from the locked state to the unlocked state, the shape and angle of the sliding groove 113 are designed so that the distance between the operating member 210 and the base 100 gradually increases during rotation. This design not only provides more space for the user to operate, but also makes the operation process safer.

[0117] Specifically, when the user needs to remove the blade 20, the rotation of the operating member 210 causes the locking member 211 to move along the sliding groove 113 from the locking groove 111 to the unlocking groove 112. During this process, the distance between the operating member 210 and the base 100 gradually increases, providing more operating space for the user's fingers or tools. This design reduces the obstacles and inconveniences that the user may encounter during operation, making the removal process easier and more intuitive. The user no longer needs to perform complex operations in a narrow space, reducing fatigue and the risk of misoperation caused by difficult operations.

[0118] In addition, the increased operating space also improves operational safety. When removing the blade 20, the user can hold the operating member 210 more stably, avoiding accidental collision with the blade 20 due to slipping of the hand due to insufficient operating space, thereby reducing possible safety hazards.

[0119] Furthermore, if Figure 7 As shown, the sliding groove 113 includes a first transverse groove 1131, an oblique guide groove 1132, and a second transverse groove 1133 connected in sequence. The extension direction of the first transverse groove 1131 and the extension direction of the second transverse groove 1133 are perpendicular to the first direction Y. The extension direction of the oblique guide groove 1132 forms a second angle β with the direction in which the operating member 210 slides out of the unlocking groove 112. The second angle β is greater than 90° and less than 150°. The second angle β can be 90°, 95°, 100°, 105°, 110°, 115°, 120°, 125°, 130°, 135°, 140°, 145°, or 150°, but is not limited thereto.

[0120] In this embodiment, the oblique guide slot 1132 plays a key guiding role. Its extension direction forms a second angle β greater than 90° and less than 150° with the direction in which the operating member 210 slides out of the unlocking slot 112. This angle design not only ensures smooth sliding of the locking member 211 within the oblique guide slot 1132, but also provides clear feedback to the user during operation.

[0121] When the user rotates the operating member 210, the locking member 211 moves from the locking slot 111 to the oblique guide slot 1132 and then from the oblique guide slot 1132 to the unlocking slot 112. The user experiences a noticeable pause during this process. This pause is caused by the transition between the different slot segments of the locking member 211, providing clear operational feedback and allowing the user to intuitively sense the position change of the locking member 211. This design allows the user to accurately determine when the unlocking action is complete without relying on visual confirmation, thereby improving operational efficiency and accuracy.

[0122] In this type of embodiment, there may be two slots 110 , and the two slots 110 are centrally symmetrical about the center line of the base 100 . Accordingly, there are also two locking members 211 , each corresponding to a different slot 110 .

[0123] like Figure 2 As shown, the base 100 is provided with a mounting channel 120, which extends along the first direction Y. The locking assembly 200 further includes an elastic member 220, which is disposed within the mounting channel 120 and elastically abuts between the operating member 210 and the base 100. The elastic member 220 can be a spring or an elastic member 220 made of rubber, etc.

[0124] The side of the mounting channel 120 away from the operating member 210 is a closed opening. One end of the elastic member 220 abuts against the closed opening, while the other end passes through the open opening of the mounting channel 120 near the operating member 210 and abuts against the operating member 210. When the locking assembly 200 is in the locked state, the operating member 210 covers the open opening of the mounting channel 120 near the operating member 210.

[0125] Optionally, a slot structure may be provided in an area of ​​the installation channel 120 close to the closed opening, so that the elastic member 220 can be partially engaged in the slot.

[0126] During actual use, a lawn mower generates a large amount of grass clippings and dust. If these impurities enter the mounting channel 120, they may cause the elastic member 220 (e.g., spring) to become stuck, deform, or lose its elasticity, thereby affecting the proper functioning of the locking assembly 200. In this embodiment, the closed opening design and the covering effect of the operating member 210 form a physical barrier to prevent the intrusion of impurities. This design not only reduces the risk of malfunction caused by the ingress of impurities but also extends the service life of the elastic member 220 and the entire locking assembly 200.

[0127] The blade disassembly structure 10 provided in this embodiment has the blade 20 installed on the blade disc 30 as shown in FIG. Figure 8 The state diagram of removing the blade 20 from the cutter head 30 can be referred to Figure 8 In Part B. Figure 8 In the figure, the locking assembly 200 switches from the locked state to the unlocked state, that is, from the state shown in A to the state shown in B, by pressing the operating member 210 in the direction indicated by arrow d and then rotating it clockwise or counterclockwise by a certain angle, so that the locking member 211 switches from the locking groove 111 to the unlocking groove 112. The user then pulls the operating member 210 away from the base 100 along the first direction Y to switch to the B state. Similarly, to switch from the unlocked state to the locked state, that is, from the B state to the A state, the operating member 210 can be pressed toward the base 100 (downward in the figure) and then rotated counterclockwise (as viewed from the operating member 210 toward the base 100) by a certain angle, so that the locking member 211 switches from the unlocking groove 112 to the locking groove 111, that is, switching to the A state.

[0128] In other embodiments, Figure 6 、 Figure 7 、 Figures 9 to 13 As shown, the operating member 210 and the base 100 are sleeved together. One of the operating member 210 and the base 100 is provided with a locking member 211 fixedly connected to the operating member 210 or the base 100, and the other is provided with a slot 110 for inserting the locking member 211.

[0129] It should be noted that the locking member 211 is fixedly connected to the corresponding base 100 or operating member 210, and the fixed connection method can be welding, riveting or integrated design. Preferably, the locking member 211 and the corresponding base 100 or operating member 210 can adopt an integrated design.

[0130] In this embodiment, this fixed connection ensures the relative positional stability and structural rigidity between the locking member 211 and the operating member 210 or base 100. During installation and use of the blade 20, the locking member 211 will not be displaced or loosened due to external forces, thereby ensuring the reliability of the locked state. In the unlocked state, the fixedly connected locking member 211 can provide a stable motion guide for the operating member 210. This stable motion guide reduces jamming and resistance during operation, reduces the risk of jamming due to improper component matching, and improves the efficiency and reliability of the assembly and disassembly of the blade 20.

[0131] The slot 110 includes a locking slot 111 and an unlocking slot 112, which are connected to each other. When the locking assembly 200 is in the locked state, the locking member 211 is located in the locking slot 111, and the locking slot 111 limits the relative movement distance of the operating member 210 and the base 100 in the first direction Y, thereby confining the blade 20 within the installation space.

[0132] When the locking assembly 200 is in the unlocked state, the locking member 211 has a first working condition and a second working condition. In the first working condition, the locking member 211 is located in the unlocking groove 112, and the operating member 210 can move along the first direction Y relative to the base 100; in the second working condition, the locking member 211 slides out of the unlocking groove 112, and the operating member 210 is separated from the base 100, so that the blade 20 can be removed from the installation space.

[0133] The locking member 211 may be provided on the base 100 or the operating member 210, and this disclosure does not limit this. Figures 9 to 12 As shown, the locking member 211 is provided on the operating member 210. The operating member 210 is a hollow shell with an open bottom end. The operating member 210 is provided on the periphery of the base 100 through the bottom opening. The locking member 211 is provided on the inner wall of the operating member 210, and the slot 110 is provided on the periphery of the base 100.

[0134] The unlocking slot 112 is open on the side facing the operating member 210, so that when the locking assembly 200 is in the unlocked state, the locking member 211 can slide out of the unlocking slot 112 in the second working state. The locking slot 111 is closed on the side facing the operating member 210, so that when the locking assembly 200 is in the locked state, the locking slot 111 can limit the relative movement distance of the operating member 210 and the base 100 in the first direction Y.

[0135] Optionally, the locking member 211 is a locking projection, which is integrally formed with the operating member 210. Specifically, the two can be formed together through an injection molding process. The integrally formed locking member 211 and the operating member 210 do not have any additional connection points, thereby reducing the risk of jamming or other malfunctions caused by loose or damaged connections. Furthermore, the integrally formed design also ensures a tighter fit between the locking member 211 and the operating member 210, further improving the precision and smoothness of the locking and unlocking actions, and ensuring the stability and durability of the blade assembly and disassembly structure 10 during long-term use.

[0136] Of course, the locking member can also be provided on the base 100 (not shown). The operating member 210 is a hollow shell with an open bottom end. The operating member 210 is provided on the periphery of the base 100 through the bottom opening. The locking member is provided on the periphery of the base 100, and the slot is provided on the inner wall of the operating member 210.

[0137] The unlocking slot is open on the side closest to the base 100, allowing the locking member to slide out of the unlocking slot under the second operating condition when the locking assembly 200 is unlocked. The locking slot is closed on the side away from the second end of the operating member 210, limiting the relative movement of the operating member 210 and the base 100 in the first direction Y when the locking assembly 200 is locked.

[0138] Similarly, the locking member can be a locking protrusion, which is integrally formed with the base 100. This integrally formed locking member eliminates additional connection points with the base 100, thereby reducing the risk of jamming or other malfunctions caused by loose or damaged connections. Furthermore, the integrally formed design provides a tighter fit between the locking member and the base 100, further improving the precision and smoothness of the locking and unlocking actions, and ensuring the stability and durability of the blade assembly and disassembly structure 10 during long-term use.

[0139] When the operating member 210 rotates, the locking member 211 can be switched between the locking groove 111 and the unlocking groove 112. For example, Figure 12 As shown, the locking groove 111 and the unlocking groove 112 are connected by a sliding groove 113. When the operating member 210 rotates relative to the base 100 around the center line of the base 100, the locking member 211 can slide along the sliding groove 113 to switch between the locking groove 111 and the unlocking groove 112, so that the locking assembly switches between the locked state and the unlocked state.

[0140] The shape design of the sliding groove 113 can be set according to actual needs. Figure 6As shown, the unlocking slot 112 extends along the first direction Y. The sliding slot 113 has a first end connected to the locking slot 111 and a second end connected to the unlocking slot 112. The line connecting the center point of the first end of the sliding slot 113 and the center point of the second end of the sliding slot 113 forms a first angle α with the direction in which the operating member 210 slides out of the unlocking slot 112. The first angle α is greater than 90° and less than or equal to 145°. The first angle α can be 105°, 110°, 115°, 120°, 125°, 130°, 135°, 140°, or 145°, but is not limited thereto.

[0141] In this embodiment, during the process of switching from the locked state to the unlocked state, the shape and angle of the sliding groove 113 are designed so that the distance between the operating member 210 and the base 100 gradually increases during rotation. This design not only provides more space for the user to operate, but also makes the operation process safer.

[0142] Specifically, when the user needs to remove the blade 20, the rotation of the operating member 210 causes the locking member 211 to move along the sliding groove 113 from the locking groove 111 to the unlocking groove 112. During this process, the distance between the operating member 210 and the base 100 gradually increases, providing more operating space for the user's fingers or tools. This design reduces the obstacles and inconveniences that the user may encounter during operation, making the removal process easier and more intuitive. The user no longer needs to perform complex operations in a narrow space, reducing fatigue and the risk of misoperation caused by difficult operations.

[0143] In addition, the increased operating space also improves operational safety. When removing the blade 20, the user can hold the operating member 210 more stably, avoiding accidental collision with the blade 20 due to slipping of the hand due to insufficient operating space, thereby reducing possible safety hazards.

[0144] Furthermore, if Figure 7 As shown, the sliding groove 113 includes a first transverse groove 1131, an oblique guide groove 1132, and a second transverse groove 1133 connected in sequence. The extension direction of the first transverse groove 1131 and the extension direction of the second transverse groove 1133 are perpendicular to the first direction Y. The extension direction of the oblique guide groove 1132 forms a second angle β with the direction in which the operating member 210 slides out of the unlocking groove 112. The second angle β is greater than 90° and less than 150°. The second angle β can be 90°, 95°, 100°, 105°, 110°, 115°, 120°, 125°, 130°, 135°, 140°, 145°, or 150°, but is not limited thereto.

[0145] In this embodiment, the oblique guide slot 1132 plays a key guiding role. Its extension direction forms a second angle β greater than 90° and less than 150° with the direction in which the operating member 210 slides out of the unlocking slot 112. This angle design not only ensures smooth sliding of the locking member 211 within the oblique guide slot 1132, but also provides clear feedback to the user during operation.

[0146] When the user rotates the operating member 210, the locking member 211 moves from the locking slot 111 to the oblique guide slot 1132 and then from the oblique guide slot 1132 to the unlocking slot 112. The user experiences a noticeable pause during this process. This pause is caused by the transition between the different slot segments of the locking member 211, providing clear operational feedback and allowing the user to intuitively sense the position change of the locking member 211. This design allows the user to accurately determine when the unlocking action is complete without relying on visual confirmation, thereby improving operational efficiency and accuracy.

[0147] In this type of embodiment, there may be two slots 110 , and the two slots 110 are centrally symmetrical about the center line of the base 100 . Accordingly, there are also two locking members 211 , each corresponding to a different slot 110 .

[0148] like Figure 9 and Figure 10 As shown, the base 100 is provided with a mounting channel 120 extending along the first direction Y. The locking assembly 200 further includes an elastic member 220, which is disposed within the mounting channel 120 and elastically abuts between the operating member 210 and the base 100. The elastic member 220 can be a spring or an elastic member 220 made of rubber.

[0149] The locking assembly 200 further includes a stopper 230 that is removable and closes the opening of the mounting channel 120 on a side away from the operating member 210. The stopper 230 can be threadedly connected to the base 100 within the mounting channel 120, such as a bolt, but is not limited thereto.

[0150] The elastic member 220 contacts the base 100 via the limiting member 230. When the locking assembly 200 is in the locked state, the operating member 210 covers the opening of the installation channel 120 on the side close to the operating member 210.

[0151] During actual use, a lawn mower is exposed to large amounts of grass clippings, sand, and dust. If these impurities enter the mounting channel 120, they may cause the elastic member 220 (e.g., spring) to become stuck, deform, or lose its elasticity, thereby affecting the proper functioning of the locking assembly 200. The sealing of the mounting channel 120 by the stopper 230, combined with the covering of the opening by the operating member 210, forms a double protective barrier, effectively preventing the intrusion of impurities. This sealing design significantly improves the reliability and durability of the blade assembly and disassembly structure 10, reduces the risk of failure due to the ingress of impurities, and extends the service life of the elastic member 220 and the entire locking assembly 200.

[0152] Furthermore, the removable design of the retaining member 230 greatly facilitates cleaning and maintenance of the mounting channel 120. If impurities accidentally enter the mounting channel 120, the user can easily remove the retaining member 230 to conveniently clean the mounting channel 120. This design not only reduces maintenance complexity but also mitigates the risk of long-term damage caused by difficult cleaning.

[0153] like Figure 9 、 Figure 10 and Figure 13 As shown, the locking assembly 200 further includes a reset pin 240, through which the elastic member 220 abuts against the operating member 210. The elastic member 220 can be partially sleeved on the periphery of the reset pin 240 to enhance the stability of the elastic member 220 during deformation.

[0154] The mounting channel 120 includes a first channel 121 and a second channel 122 that are interconnected. The first channel 121 is located on the side of the second channel 122 that is closer to the operating member 210. The inner diameter of the first channel 121 is smaller than that of the second channel 122. The elastic member 220 is disposed within the second channel 122, and the reset pin 240 is at least partially disposed within the first channel 121.

[0155] Alternatively, as Figure 13 As shown, reset pin 240 includes a first segment 241, a second segment 242, and a third segment 243, which are sequentially connected. The outer diameters of the first segment 241 and the third segment 243 are both smaller than the outer diameter of the second segment 242. The first segment 241 is disposed within the first channel 121, while the second segment 242 and the third segment 243 are disposed within the second channel 122. The third segment 243 is sleeved with the elastic member 220. The outer diameter of the first segment 241 matches the inner diameter of the first channel 121, while the outer diameter of the second segment 242 matches the inner diameter of the second channel 122.

[0156] like Figure 9As shown, the blade 20 has opposing top and bottom surfaces. When the blade assembly / disassembly structure 10 is used to attach the blade 20 to the cutterhead 30, the operating member 210 is located on the bottom side of the blade 20, while the second channel 122 is located on the top side of the blade 20. This arrangement allows the larger second channel 122 to be positioned on the top side of the blade 20, allowing the blade 20 to be connected to the periphery of the smaller first channel 121 on the base 100. This arrangement allows for a smaller aperture on the blade 20, thereby improving the structural strength and durability of the blade 20. The smaller aperture reduces stress concentration points on the blade 20 during use, reducing the risk of damage to the blade 20 due to high-speed rotation or external impact. This not only extends the service life of the blade 20 but also improves the safety and reliability of mowing operations.

[0157] The blade disassembly structure 10 provided in this embodiment has the blade 20 installed on the blade disc 30 as shown in FIG. Figure 14 The state diagram of removing the blade 20 from the cutter head 30 can be referred to Figure 14 In Section D of Figure 14 In the figure, the locking assembly 200 switches from the locked state to the unlocked state, that is, from the state shown in C to the state shown in D, by pressing the operating member 210 in the direction indicated by arrow e and then rotating it clockwise or counterclockwise by a certain angle, so that the locking member 211 switches from the locking groove 111 to the unlocking groove 112. The user then pulls the operating member 210 away from the base 100 along the first direction Y to switch to the D state. Similarly, to switch from the unlocked state to the locked state, that is, from the D state to the C state, the operating member 210 can be pressed toward the base 100 (downward in the figure) and then rotated counterclockwise (as viewed from the operating member 210 toward the base 100) by a certain angle, so that the locking member 211 switches from the unlocking groove 112 to the locking groove 111, that is, switching to the C state.

[0158] like Figure 1 As shown, the present application also discloses an intelligent lawn mower, including a cutter disc 30, a drive assembly, and a blade assembly and disassembly mechanism 10 according to any of the above embodiments. The drive assembly drives the cutter disc 30 to rotate. The blade assembly and disassembly mechanism 10 is connected to the cutter disc 30 and is used to connect the blade 20 to the cutter disc 30.

[0159] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the appended claims.

Claims

1. A blade disassembly and assembly structure for connecting a blade to a cutter head, characterized in that: include: base; a locking assembly connected to the base, the locking assembly comprising an operating member, the operating member being located on one side of the base in the first direction and being detachably connected to the base, the operating member and the periphery of the base jointly defining an installation space for installing the blade; wherein, when the operating member rotates relative to the base around the center line of the base, the locking assembly can switch between a locked state and an unlocked state, and the center line of the base is parallel to the first direction; The operating member and the base are sleeved with each other, one of the operating member and the base is provided with a locking member fixedly connected to the operating member or the base, and the other is provided with a slot for inserting the locking member; The slot includes a locking slot and an unlocking slot, and the locking slot and the unlocking slot are in communication; When the locking assembly is in the locked state, the locking member is located in the locking groove, and the locking groove limits the relative movement distance of the operating member and the base in the first direction, thereby confining the blade within the installation space; When the locking assembly is in the unlocked state, the locking member has a first working condition and a second working condition. In the first working condition, the locking member is located in the unlocking groove, and the operating member can move relative to the base along the first direction. In the second working condition, the locking member slides out of the unlocking slot, and the operating member is separated from the base, so that the blade can be removed from the installation space.

2. The blade disassembly structure according to claim 1, characterized in that: The operating member is a hollow shell with an opening at the bottom, and the operating member is disposed on the periphery of the base through the opening at the bottom; The locking member is provided on the inner wall of the operating member, and the slot is provided on the periphery of the base; The unlocking slot is open on a side facing the operating member, so that when the locking assembly is in the unlocked state, the locking member can slide out of the unlocking slot under the second working condition; The side of the locking groove facing the operating member is a closed opening, so that when the locking assembly is in a locked state, the locking groove can limit the relative movement distance of the operating member and the base in the first direction.

3. The blade disassembly structure according to claim 2, characterized in that: The locking member is a locking protrusion, and the locking protrusion is integrally formed with the operating member.

4. The blade disassembly structure according to claim 1, characterized in that: The operating member is a hollow shell with an opening at the bottom, and the operating member is disposed on the periphery of the base through the opening at the bottom; The locking member is provided on the periphery of the base, and the slot is provided on the inner wall of the operating member; The unlocking slot has an open opening on one side close to the base, so that when the locking assembly is in the unlocked state, the locking member can slide out of the unlocking slot under the second working condition; The side of the locking groove away from the second end of the operating member is a closed opening, so that when the locking assembly is in a locked state, the locking groove can limit the relative movement distance of the operating member and the base in the first direction.

5. The blade disassembly structure according to claim 4, characterized in that: The locking member is a locking protrusion, and the locking protrusion is integrally formed with the base.

6. The blade disassembly and assembly structure according to claim 1, characterized in that: The locking groove and the unlocking groove are connected via a sliding groove; When the operating member rotates relative to the base around the center line of the base, the locking member can slide along the sliding groove to switch between the locking groove and the unlocking groove, so that the locking assembly switches between the locked state and the unlocked state.

7. The blade disassembly and assembly structure according to claim 6, characterized in that: The unlocking slot extends along the first direction; The sliding groove has a first end connected to the locking groove and a second end connected to the unlocking groove. The line between the center point of the first end of the sliding groove and the center point of the second end of the sliding groove has a first angle with the sliding direction of the operating member from the unlocking groove. The first angle is greater than 90° and less than or equal to 145°.

8. The blade disassembly structure according to claim 7, characterized in that: The sliding groove includes a first transverse groove, an oblique guide groove and a second transverse groove connected in sequence. The extension direction of the first transverse groove and the extension direction of the second transverse groove are perpendicular to the first direction. The extension direction of the oblique guide groove and the sliding direction of the operating member from the unlocking groove have a second angle, and the second angle is greater than 90° and less than 150°.

9. The blade disassembly and assembly structure according to claim 1, characterized in that: The base is provided with a mounting channel, and the mounting channel extends along the first direction; The locking assembly further includes an elastic member, which is disposed in the mounting channel and elastically abuts between the operating member and the base; The side of the installation channel away from the operating member is a closed opening, one end of the elastic member abuts against the closed opening, and the other end passes through the open opening of the installation channel close to the operating member and abuts against the operating member; When the locking assembly is in the locked state, the operating member covers the open opening of the installation channel on a side close to the operating member.

10. The blade disassembly structure according to claim 1, characterized in that: The base is provided with a mounting channel extending along the first direction; The locking assembly further includes an elastic member, which is disposed in the mounting channel and elastically abuts between the operating member and the base; Wherein, the locking assembly further comprises a limiting member, which is detachably closed to close the opening of the installation channel on a side away from the operating member, and the elastic member abuts against the base through the limiting member; When the locking assembly is in the locked state, the operating member covers the open opening of the installation channel on a side close to the operating member.

11. The blade disassembly structure according to claim 10, characterized in that: The locking assembly further includes a reset pin, and the elastic member abuts against the operating member via the reset pin.

12. The blade disassembly and assembly structure according to claim 11, characterized in that: The installation channel includes a first channel and a second channel that are interconnected, the first channel is located on a side of the second channel close to the operating member, and the inner diameter of the first channel is smaller than the inner diameter of the second channel; The elastic member is disposed in the second channel, and the reset pin is at least partially disposed in the first channel; The blade has a top surface and a bottom surface that are arranged opposite to each other. When the blade is installed on the blade disc by the blade disassembly and assembly structure, the operating member is located on the bottom surface side of the blade, and the second channel is located on the top surface side of the blade.

13. The blade disassembly and assembly structure according to claim 12, characterized in that: The reset pin comprises a first segment, a second segment and a third segment connected in sequence, wherein the outer diameters of the first segment and the third segment are both smaller than the outer diameter of the second segment; The first segment is inserted into the first channel, the second segment and the third segment are inserted into the second channel, and the third segment is sleeved with the elastic member; The outer diameter of the first segment is adapted to the inner diameter of the first channel, and the outer diameter of the second segment is adapted to the inner diameter of the second channel.

14. An intelligent lawn mower, characterized in that: include: knife disc; A driving assembly, driving the cutter disc to rotate; The blade disassembly and assembly structure according to any one of claims 1 to 13 is connected to the cutter disc and is used to connect the blade to the cutter disc.

Images