Cutter head mechanism and mower

Abstract

The utility model discloses a cutterhead mechanism and a mower, and relates to the technical field of mowers. The cutterhead mechanism comprises a base, a driving unit, a cutterhead and a baffle; the base is provided with a near-ground side; the driving unit is mounted on the base; the cutterhead is arranged on the near-ground side of the base and comprises a cutterhead frame and a blade, the cutterhead frame is in transmission connection with an output shaft of the driving unit, the blade is provided with a first end and a second end, the first end is connected to the cutterhead frame, and the second end protrudes relative to the peripheral side of the cutterhead frame; the baffles are arranged on the side, away from the base, of the cutterhead frame at intervals and rotatably connected to the output shaft, and the second ends protrude relative to the peripheral sides of the baffles. According to the cutterhead mechanism, the probability that the driving unit has the overcurrent problem can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of lawn mowers, and in particular to a cutter disc mechanism and a lawn mower. Background Art

[0002] A lawn mower, also known as a lawn machine, can trim the lawn to make it smoother.

[0003] However, existing lawn mowers are prone to entanglement when mowing tall grass, causing problems such as overcurrent in the motor of the lawn mower, thereby shortening the service life of the motor. Utility Model Content

[0004] The present application provides a cutter disc mechanism and a lawn mower to reduce the probability of an overcurrent problem occurring in a drive unit.

[0005] The present application provides a cutter head mechanism, comprising:

[0006] A base, configured with a near-ground side;

[0007] A driving unit is mounted on the base;

[0008] a cutter disc disposed on the ground-proximal side of the base, the cutter disc comprising a cutter disc holder and a blade, the cutter disc holder being transmission-connected to the output shaft of the drive unit, the blade having a first end and a second end, the first end being connected to the cutter disc holder, and the second end being protruding relative to a circumferential side of the cutter disc holder;

[0009] A baffle is spaced apart and arranged on a side of the cutter head frame away from the base. The baffle is rotatably connected to the output shaft, and the second end is protruded relative to the peripheral side of the baffle.

[0010] In some possible implementations, the cutter head mechanism further includes a connecting shaft and an adapter, wherein the connecting shaft is fixedly connected to the output shaft;

[0011] The adapter is rotatably mounted on the circumferential side of the connecting shaft. The adapter is located on a side of the cutter head frame that is away from the base. The baffle is fixedly connected to the adapter.

[0012] In some possible implementations, the adapter is located on a side of the baffle facing the cutter head frame;

[0013] One of the side of the adapter seat facing the cutter disc holder and the side of the cutter disc holder facing the adapter seat is protruded with an annular first limiting flange, and the other is provided with an annular first limiting groove. The first limiting flange and the first limiting groove are both coaxially arranged with the output shaft, and the first limiting flange can be movably inserted in the first limiting groove.

[0014] In some possible implementations, the first limiting flange is protrudingly provided on a side of the adapter seat facing the cutter head holder;

[0015] The cutter head frame is provided with two annular second limiting flanges protruding from one side toward the adapter seat. The two second limiting flanges are both coaxially arranged with the output shaft. The two second limiting flanges are nested and cooperate to form the first limiting groove.

[0016] In some possible implementations, the cutter head mechanism further includes a bearing;

[0017] A first assembly groove is formed on a side of the connecting shaft facing the adapter seat, and a side of the first assembly groove facing away from the base is configured as an opening. The inner ring of the bearing is disposed in the first assembly groove. A first limit plate is connected to a side of the connecting shaft facing away from the base, and the first limit plate abuts against a side of the inner ring of the bearing facing away from the base.

[0018] The adapter seat is sleeved on the circumferential side of the bearing, and a second assembly groove is provided on the side of the adapter seat facing the connecting shaft. The second assembly groove is configured as an opening on the side away from the base. The outer ring of the bearing is arranged in the second assembly groove. A second limit plate is connected to the side of the adapter seat away from the base, and the second limit plate abuts against the side of the outer ring of the bearing away from the base.

[0019] In some possible implementations, the drive unit includes a drive member and a housing assembly, the housing assembly is mounted on the base, and one end of the housing assembly is passed through the base and exposed on the ground-proximal side of the base;

[0020] The driving member is disposed in the housing assembly, the output shaft of the driving member is passed through the housing assembly and protrudes from the ground-proximal side of the base, and the output shaft of the driving unit is the output shaft of the driving member;

[0021] The cutter disc mechanism further includes a mounting seat, the mounting seat is connected to the output shaft, and the cutter disc frame is connected to a side of the mounting seat facing away from the base.

[0022] In some possible implementations, the cutter disc mechanism further includes a protective cover, the protective cover including a main body and at least two extensions, the main body being connected to a side of the housing assembly facing the cutter disc;

[0023] The at least two extensions are arranged on the side of the main body, and the extensions are extended from the main body toward the baffle. The extensions are located on a side of the cutter disc and the baffle away from the output shaft.

[0024] In some possible embodiments, the main body is provided with an annular third limiting flange protruding from one side of the cutter disc holder, the third limiting flange is arranged around the circumference of the mounting seat and is spaced apart from the mounting seat, and the third limiting flange is spaced apart from the cutter disc holder on the side facing the cutter disc holder.

[0025] In some possible embodiments, the cutter head holder is provided with an annular fourth limiting flange protruding from one side of the main body, the fourth limiting flange is spaced apart from the side of the third limiting flange away from the mounting seat, and the fourth limiting flange is spaced apart from the side of the main body facing the main body.

[0026] In addition, the present application also provides a lawn mower, comprising the cutter disc mechanism provided in the above embodiments.

[0027] Beneficial effects of the present application: The blade disc mechanism provided by the present application can be stopped by a baffle between the blade disc frame and the grass during use, so that most of the grass cannot directly contact the blade disc frame, thereby reducing the probability of grass being entangled in the blade disc frame, and further reducing the possibility of problems such as overcurrent in the drive unit due to increased load, thereby protecting the drive unit, extending the service life of the drive unit, and thus extending the service life of the lawn mower. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 A schematic side view of the cutter head mechanism in some embodiments is shown;

[0030] Figure 2 Shown Figure 1 A schematic diagram of the partially enlarged structure of part A;

[0031] Figure 3 Schematic diagrams of the cross-sectional structure of the cutter head mechanism in some embodiments are shown;

[0032] Figure 4 Shown Figure 3 Schematic diagram of the locally enlarged structure of part B.

[0033] Description of main component symbols:

[0034] 1000-cutter mechanism;

[0035] 100-base; 101-near-ground side;

[0036] 200-drive unit; 210-drive member; 211-output shaft; 220-housing assembly; 2201-assembly cavity; 221-housing; 222-end cover;

[0037] 300 - cutterhead; 310 - cutterhead frame; 311 - second limiting flange; 312 - first limiting groove; 313 - fourth limiting flange; 320 - blade; 321 - first end; 322 - second end;

[0038] 400- baffle;

[0039] 510 - connecting shaft; 511 - first assembly groove; 520 - adapter seat; 521 - second assembly groove; 522 - first limiting flange; 530 - mounting seat; 540 - threaded sleeve; 550 - bearing; 561 - first limiting plate; 562 - second limiting plate; 570 - sealing ring; 580 - pressure plate;

[0040] 600-protective cover; 610-main body; 620-extension portion; 630-third limiting flange;

[0041] 700-Second limit slot. DETAILED DESCRIPTION

[0042] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0043] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0045] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0046] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0047] like Figure 1 As shown, an embodiment provides a cutter disc mechanism 1000 that can be used in a lawn mower.

[0048] like Figures 1 to 3 As shown, the cutter head mechanism 1000 may include a base 100 , a driving unit 200 , a cutter head 300 , and a baffle 400 .

[0049] The base 100 is provided with a ground-proximal side 101 . That is, during normal use of the lawn mower, the side of the base 100 facing the ground may be the ground-proximal side 101 .

[0050] The drive unit 200 can be mounted on the base 100. The blade disc 300 can be arranged on the ground side 101 of the base 100. The blade disc 300 includes a blade disc frame 310 and a blade 320. The blade disc frame 310 is connected to the output shaft 211 of the drive unit 200, and the blade disc frame 310 can be fixed relative to the output shaft 211 of the drive unit 200. The blade 320 has a first end 321 and a second end 322, and the first end 321 can be connected to the blade disc frame 310. In some embodiments, the first end 321 can be connected to the edge of the blade disc frame 310. The second end 322 can be protruded relative to the peripheral side of the blade disc frame 310. During use, the drive unit 200 can drive the blade disc frame 310 to rotate, thereby driving the blade 320 to rotate to achieve a mowing action.

[0051] The baffle 400 is disposed on a side of the cutter head 300 facing away from the base 100 . The baffle 400 is rotatably connected to the output shaft 211 of the driving unit 200 , that is, the baffle 400 can rotate relative to the output shaft 211 of the driving unit 200 .

[0052] During the mowing process, the baffle 400 is stopped between the cutter disc frame 310 and the grass, which prevents most of the grass from directly contacting the cutter disc frame 310. This reduces the probability of grass being entangled in the cutter disc frame 310, and further reduces the possibility of problems such as overcurrent in the drive unit 200 due to increased load, thereby protecting the drive unit 200, extending the service life of the drive unit 200, and thus extending the service life of the lawn mower.

[0053] like Figure 1 and Figure 3 As shown, in some embodiments, the drive unit 200 includes a drive member 210 and a housing assembly 220. The housing assembly 220 may include a housing 221 and an end cap 222. The end cap 222 is connected to one end of the housing 221 via a snap-fit ​​connection or a screw connection, and cooperates with the housing 221 to form an assembly cavity 2201. The end of the housing 221 away from the end cap 222 may be inserted into the base 100 and exposed relative to the ground-proximal side 101 of the base 100.

[0054] In some embodiments, the housing assembly 220 may be fixedly connected to the base 100. Alternatively, the housing assembly 220 may be slidably mounted on the base 100, and the housing assembly 220 may be telescopically arranged relative to the ground side 101 of the base 100, thereby making the distance between the cutterhead 300 and the ground adjustable.

[0055] like Figure 1 and Figure 3As shown, a sealing ring 570 may be provided at the connection position between the shell 221 and the base 100. The sealing ring 570 may be provided around the circumference of the shell 221. In an embodiment, the sealing ring 570 may be pressed against the ground-side 101 of the base 100 by a pressure plate 580, and the pressure plate 580 may be fixedly connected to the ground-side 101 of the base 100 by screw connection or clamping. In addition, the inner side of the sealing ring 570 may abut against the side of the shell 221 facing away from the assembly cavity 2201. Thus, the sealing of the connection position between the shell 221 and the base 100 can be achieved, the probability of grass clippings and the like entering the base 100 can be reduced, and at the same time, a waterproof effect can be achieved.

[0056] In some embodiments, the drive member 210 may be a motor. The output shaft 211 of the drive unit 200 may refer to the output shaft 211 of the drive member 210. The drive member 210 may be installed in the assembly cavity 2201, and the output shaft 211 of the drive member 210 may be arranged on a side away from the end cover 222. In an embodiment, the output shaft 211 of the drive member 210 may be provided at an end of the housing 221 away from the end cover 222, and protrude relative to the side of the housing 221 away from the assembly cavity 2201, that is, the output shaft 211 of the drive member 210 may extend to the outside of the housing assembly 220. Accordingly, the output shaft 211 of the drive member 210 may be provided to protrude relative to the ground-proximal side 101 of the base 100.

[0057] like Figure 3 and Figure 4 As shown, in some embodiments, the cutter head mechanism 1000 further includes a mounting seat 530. The mounting seat 530 can be fixedly connected to the output shaft 211 of the driving member 210 by screw connection, clamping or bonding. The mounting seat 530 can be coaxially arranged with the output shaft 211.

[0058] The cutterhead frame 310 can be fixedly connected to the mounting base 530 by screw connection or clamping, and the cutterhead frame 310 can be located on the side of the mounting base 530 facing away from the base 100. In an embodiment, the cutterhead frame 310 can be coaxially arranged with the mounting base 530. This can avoid problems such as shaking of the cutterhead frame 310 due to eccentricity, ensure the stability of the cutterhead frame 310 during use, reduce vibration during operation of the cutterhead 300, and smoothly achieve mowing action, ensuring mowing efficiency.

[0059] like Figures 1 to 4As shown, in some embodiments, the cutterhead 300 may include multiple blades 320, which may be evenly or unevenly spaced around the circumference of the mounting base 530. The first ends 321 of the blades 320 may be connected to the edge of the cutterhead frame 310 via screws or other means. The second ends 322 of the blades 320 may be arranged to protrude from the circumference of the cutterhead frame 310 so that the second ends 322 of the blades 320 can smoothly contact the grass to achieve a mowing action. In an embodiment, the cutting edges of the blades 320 may be parallel to the radial direction of the cutterhead frame 310, and the cutting edges may be provided on both sides of the blades 320. Thus, mowing can be achieved during both counterclockwise and clockwise rotation of the cutterhead 300.

[0060] During the mowing process, the driving member 210 can drive the mounting seat 530 to rotate, and the mounting seat 530 drives the cutter head frame 310 to rotate, and then the cutter head frame 310 drives the blade 320 to rotate around the output shaft 211 of the driving member 210 to achieve mowing.

[0061] like Figure 3 and Figure 4 As shown, the cutter head mechanism 1000 further includes a connecting shaft 510 and an adapter seat 520 .

[0062] The interior of the connecting shaft 510 is hollow and tubular. In some embodiments, a threaded sleeve 540 may be embedded within the connecting shaft 510, such as by pre-embedding or other means. The threaded sleeve 540 can be fixed relative to the connecting shaft 510. The inner wall of the threaded sleeve 540, facing away from the connecting shaft 510, is internally threaded.

[0063] In some embodiments, the threaded sleeve 540 can be connected to the mounting base 530 by means of screws or other means and can be fixed relative to the mounting base 530. Specifically, a screw can be sequentially inserted through the mounting base 530 and the threaded sleeve 540 and threadedly engaged with the threaded sleeve 540. The head of the screw can be positionally abutted against the side of the mounting base 530 facing away from the connecting shaft 510. This can achieve a fixed connection between the connecting shaft 510 and the threaded sleeve 540, and further achieve a fixed connection between the connecting shaft 510 and the mounting base 530.

[0064] like Figure 3 and Figure 4 As shown, the adapter seat 520 can be rotatably mounted on the peripheral side of the connecting shaft 510 through the bearing 550 , and the adapter seat 520 can be located on the side of the cutter head frame 310 away from the base 100 .

[0065] In some embodiments, a first mounting groove 511 may be configured on the side of the connecting shaft 510 facing away from the threaded sleeve 540. The first mounting groove 511 may be located at the end of the connecting shaft 510 away from the mounting seat 530, and the side of the first mounting groove 511 facing away from the mounting seat 530 may be open. The bearing 550 may be sleeved around the circumference of the connecting shaft 510 from the open side of the first mounting groove 511, with the inner ring of the bearing 550 embedded in the first mounting groove 511.

[0066] In some embodiments, the cutter head mechanism 1000 further includes a first stop plate 561. The first stop plate 561 can be fixedly connected to the threaded sleeve 540 via screws, and the first stop plate 561 can abut the threaded sleeve 540 and the side of the connecting shaft 510 facing away from the mounting seat 530. Furthermore, the circumferential side of the first stop plate 561 can protrude relative to the circumferential side of the connecting shaft 510 and oppose the sidewall of the first assembly groove 511 near one end of the mounting seat 530. Accordingly, the first stop plate 561 can abut the side of the inner ring of the bearing 550 facing away from the mounting seat 530, thereby tightening the inner ring of the bearing 550 in the first assembly groove 511. This allows the inner ring of the bearing 550 to be fixed relative to the connecting shaft 510.

[0067] The adapter 520 can be mounted on the side of the bearing 550 facing away from the connecting shaft 510 and can be fixedly connected to the outer ring of the bearing 550. In some embodiments, the adapter 520 has a second mounting groove 521 defined on the side facing the connecting shaft 510. The side of the second mounting groove 521 facing away from the mounting base 530 can be open. The outer ring of the bearing 550 can be positioned in the second mounting groove 521.

[0068] In addition, the cutterhead mechanism 1000 further includes a second limit plate 562. The second limit plate 562 can be fixedly connected to the side of the adapter 520 facing away from the cutterhead 300, for example, by screw connection. The second limit plate 562 can protrude relative to the adapter 520 toward the connecting shaft 510. Accordingly, the second limit plate 562 can oppose the sidewall of the second assembly groove 521 on the side near the mounting seat 530. The second limit plate 562 abuts against the side of the outer ring of the bearing 550 facing away from the cutterhead 300, thereby clamping the outer ring of the bearing 550 and securing it relative to the adapter 520. This allows the adapter 520 to be rotatably mounted on the connecting shaft 510.

[0069] In the embodiment, the baffle 400 can be fixedly connected to the side of the adapter 520 away from the cutter head 300 by screw connection or clamping. In this way, the baffle 400 can be rotatably connected to the output shaft 211.

[0070] In other embodiments, the baffle 400 may also be sleeved on the circumference of the adapter 520 and fixedly connected to the adapter 520 , and the baffle 400 and the blade 320 are spaced apart.

[0071] In some embodiments, a first limiting flange 522 is provided on one side of the adapter 520 facing the cutter head 310. The first limiting flange 522 may be an annular structure and may be provided along the edge of the adapter 520. The first limiting flange 522 may be coaxial with the output shaft 211.

[0072] Two annular second limiting flanges 311 are protruding from one side of the cutter head 310 toward the adapter 520. The two second limiting flanges 311 are nested and spaced apart to form an annular first limiting groove 312. In this embodiment, the first limiting groove 312 can be coaxial with the output shaft 211.

[0073] In some embodiments, the first limiting flange 522 is movably inserted into the first limiting groove 312, that is, the first limiting flange 522 can move in the first limiting groove 312 and rotate about the connecting shaft 510. In this embodiment, the first limiting flange 522 is spaced apart from the cutter head frame 310 on the side facing the cutter head frame 310. The first limiting flange 522 is spaced apart from both second limiting flanges 311.

[0074] When the adapter seat 520 rotates relative to the connecting shaft 510, the first limiting flange 522 can cooperate with the first limiting groove 312 to provide a guiding and limiting function for the adapter seat 520, thereby reducing the probability of the adapter seat 520 tilting, shaking and other problems, thereby reducing the possibility of the baffle 400 tilting, shaking and other problems, improving the installation stability of the baffle 400, and reducing the vibration of the baffle 400 during operation, so as to provide a good grass blocking effect.

[0075] In other embodiments, the first limiting flange 522 may be disposed on a side of the cutter head frame 310 facing the adapter 520 . The first limiting groove 312 may be disposed on a side of the adapter 520 facing the cutter head frame 310 .

[0076] like Figure 1 、 Figure 3 and Figure 4As shown, the cutter head mechanism 1000 further includes a protective cover 600, which can be fixedly connected to the side of the housing 221 facing the cutter head 300 by means of screw connection or snap connection. In some embodiments, the protective cover 600 may include an integrated main body 610 and two extensions 620. The main body 610 may be roughly parallel to the cutter head frame 310, and the main body 610 is disposed between the housing 221 and the cutter head frame 310, and the main body 610 may be fixedly connected to the housing 221 by means of screw connection or snap connection. The two extensions 620 may be disposed at opposite ends of the main body 610, and the extensions 620 may extend from the main body 610 in a direction close to the baffle 400. In an embodiment, the extensions 620 may be spaced apart on the side of the cutter head 300 and the baffle 400 facing away from the connecting shaft 510.

[0077] In the embodiment, by providing the protective cover 600, the output direction of grass clippings during the mowing process can be limited, the phenomenon of grass clippings flying around can be reduced, and grass clippings can be prevented from splashing towards the operator and causing harm to the operator.

[0078] In some embodiments, a third annular limiting flange 630 is provided on the side of the main body 610 that projects toward the cutterhead frame 310. The third limiting flanges 630 are spaced apart around the circumference of the mounting seat 530. Furthermore, the third limiting flange 630 is spaced apart from the cutterhead frame 310 on the side that faces the cutterhead frame 310. When the driving member 210 drives the mounting seat 530 and the cutterhead 300 to rotate, the third limiting flange 630 can provide corresponding radial limiting, thereby reducing the probability of the cutterhead 300 tilting and other problems. It can also reduce vibration during the rotation of the cutterhead 300 and improve the stability of the cutterhead 300 during rotation.

[0079] In some embodiments, the cutter head frame 310 is provided with an annular fourth limiting flange 313 protruding from one side of the cutter head frame 310 toward the main body 610. The fourth limiting flange 313 can be spaced apart on the circumferential side of the mounting seat 530, and the fourth limiting flange 313 and the mounting seat 530 can cooperate to form a second limiting groove 700. The second limiting groove 700 can be configured to be open on the side facing the main body 610. The third limiting flange 630 can be movably inserted into the second limiting groove 700, that is, the third limiting flange 630 can be moved relative to the second limiting groove 700. In an embodiment, the fourth limiting flange 313 can also be spaced apart from the third limiting flange 630. The fourth limiting flange 313 can also be spaced apart from the main body 610 on the side facing the main body 610.

[0080] When the driver 210 drives the cutterhead 300 to rotate, the third limiting flange 630 can move relative to the second limiting groove 700. During this process, the third limiting flange 630 can provide radial positioning for the fourth limiting flange 313, thereby improving the stability of the cutterhead 300 during rotation, reducing vibration during rotation, and reducing the probability of the cutterhead 300 tilting, thereby ensuring the smooth operation of the cutterhead mechanism 1000.

[0081] The embodiment further provides a lawn mower, which may include the cutter disc mechanism 1000 provided in the embodiment.

[0082] In an embodiment, the baffle 400 can be stopped between the cutter disc frame 310 and the grass, reducing the possibility of the cutter disc frame 310 being entangled by the grass, thereby reducing the probability of problems such as overcurrent in the drive component 210, extending the service life of the drive component 210, and thereby extending the service life of the lawn mower.

[0083] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0084] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A cutter head mechanism, characterized in that: include: A base, configured with a near-ground side; A driving unit is mounted on the base; a cutter disc disposed on the ground-proximal side of the base, the cutter disc comprising a cutter disc holder and a blade, the cutter disc holder being transmission-connected to the output shaft of the drive unit, the blade having a first end and a second end, the first end being connected to the cutter disc holder, and the second end being protruding relative to a circumferential side of the cutter disc holder; A baffle is spaced apart and arranged on a side of the cutter head frame away from the base. The baffle is rotatably connected to the output shaft, and the second end is protruded relative to the peripheral side of the baffle.

2. The cutter head mechanism according to claim 1, characterized in that: The cutter head mechanism further comprises a connecting shaft and an adapter seat, wherein the connecting shaft is fixedly connected to the output shaft; The adapter is rotatably mounted on the circumferential side of the connecting shaft. The adapter is located on a side of the cutter head frame that is away from the base. The baffle is fixedly connected to the adapter.

3. The cutter head mechanism according to claim 2, characterized in that: The adapter is located on the side of the baffle facing the cutter head frame; One of the side of the adapter seat facing the cutter disc holder and the side of the cutter disc holder facing the adapter seat is protruded with an annular first limiting flange, and the other is provided with an annular first limiting groove. The first limiting flange and the first limiting groove are both coaxially arranged with the output shaft, and the first limiting flange can be movably inserted in the first limiting groove.

4. The cutter head mechanism according to claim 3, characterized in that: The first limiting flange is protrudingly provided on a side of the adapter seat facing the cutter head frame; The cutter head frame is provided with two annular second limiting flanges protruding from one side toward the adapter seat. The two second limiting flanges are both coaxially arranged with the output shaft. The two second limiting flanges are nested and cooperate to form the first limiting groove.

5. The cutter head mechanism according to any one of claims 2 to 4, characterized in that: The cutter head mechanism further includes a bearing; A first assembly groove is formed on a side of the connecting shaft facing the adapter seat, and a side of the first assembly groove facing away from the base is configured as an opening. The inner ring of the bearing is disposed in the first assembly groove. A first limit plate is connected to a side of the connecting shaft facing away from the base, and the first limit plate abuts against a side of the inner ring of the bearing facing away from the base. The adapter seat is sleeved on the circumferential side of the bearing, and a second assembly groove is provided on the side of the adapter seat facing the connecting shaft. The second assembly groove is configured as an opening on the side away from the base. The outer ring of the bearing is arranged in the second assembly groove. A second limit plate is connected to the side of the adapter seat away from the base, and the second limit plate abuts against the side of the outer ring of the bearing away from the base.

6. The cutter head mechanism according to claim 1, characterized in that: The driving unit includes a driving member and a housing assembly, wherein the housing assembly is mounted on the base, and one end of the housing assembly is passed through the base and exposed on the ground-proximal side of the base; The driving member is disposed in the housing assembly, the output shaft of the driving member is passed through the housing assembly and protrudes from the ground-proximal side of the base, and the output shaft of the driving unit is the output shaft of the driving member; The cutter disc mechanism further includes a mounting seat, the mounting seat is connected to the output shaft, and the cutter disc frame is connected to a side of the mounting seat facing away from the base.

7. The cutter head mechanism according to claim 6, characterized in that: The cutter disc mechanism further includes a protective cover, the protective cover including a main body and at least two extensions, the main body being connected to a side of the housing assembly facing the cutter disc; The at least two extensions are arranged on the side of the main body, and the extensions are extended from the main body toward the baffle. The extensions are located on a side of the cutter disc and the baffle away from the output shaft.

8. The cutter head mechanism according to claim 7, characterized in that: The main body is provided with an annular third limiting flange protruding from one side of the cutter disc holder. The third limiting flange is arranged around the circumference of the mounting seat and is spaced apart from the mounting seat. The third limiting flange is spaced apart from the cutter disc holder on the side facing the cutter disc holder.

9. The cutter head mechanism according to claim 8, characterized in that: The cutter head holder is provided with an annular fourth limiting flange protruding from one side of the main body, and the fourth limiting flange is spaced apart from the side of the third limiting flange away from the mounting seat, and the fourth limiting flange is spaced apart from the main body on the side facing the main body.

10. A lawn mower, characterized in that: Comprising the cutter disc mechanism according to any one of claims 1 to 9.

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