Cutter head mechanism and mower

Abstract

The utility model relates to the technical field of mowers, and discloses a cutterhead mechanism and a mower.The cutterhead mechanism comprises a protective cover shell, a cutterhead assembly and a connecting structure, the cutterhead assembly comprises a mounting part and a cutting unit, the cutting unit is rotatably arranged on the mounting part, and the connecting structure is arranged on the mounting part; the protective cover shell is arranged on the peripheral side of the cutting unit in a covering mode. The connecting structure comprises a first connecting piece and a second connecting piece, the first connecting piece is arranged on the protective cover shell, the second connecting piece is arranged on the mounting piece, and the first connecting piece is detachably connected with the second connecting piece. The mowing machine aims to solve the technical problems that a cutting component of the mowing machine is difficult to detach and replace, time and labor are consumed during detaching and replacing, and operation risks exist.

Description

Technical Field

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

[0002] A lawnmower, also known as a lawn mower, is a mechanical tool used to trim lawns, vegetation, etc. It cuts grass by rotating blades on a blade disc mechanism.

[0003] In related technologies, the cutter head mechanism is large and heavy, and difficult to disassemble and replace. Operators need to lie on the ground and use a support and special tools to disassemble and replace the cutting parts. The disassembly and replacement process is time-consuming and laborious, and there are certain operational risks. Utility Model Content

[0004] The purpose of this application is to provide a blade mechanism and a lawnmower to solve the technical problem that the cutting parts of the lawnmower are difficult to replace, and that replacement is time-consuming, labor-intensive, and poses operational risks.

[0005] To achieve the above objectives, this application provides a cutter head mechanism, which includes:

[0006] Protective casing;

[0007] A cutter head assembly includes a mounting component and a cutting unit, wherein the cutting unit is rotatably mounted on the mounting component, and a protective cover is provided around the periphery of the cutting unit.

[0008] The connection structure includes a first connector and a second connector. The first connector is disposed on the protective cover, and the second connector is disposed on the mounting component. The first connector and the second connector are detachably connected.

[0009] In the cutter head mechanism of this application, the first connecting member includes a connecting post, and the second connecting member includes a connecting groove; or the first connecting member includes a connecting groove, and the second connecting member includes a connecting post.

[0010] The connecting post is inserted into the connecting groove and is tightly fitted to the connecting groove.

[0011] In the cutter head mechanism of this application, the cutter head mechanism further includes fasteners;

[0012] The connecting post is provided with a first mounting hole, the connecting groove is provided with a second mounting hole, and the fastener passes through the first mounting hole and the second mounting hole.

[0013] In the cutter head mechanism of this application, the mounting component includes a first bracket, the cutting unit includes a first blade and a first motor, the first motor and the first blade are respectively disposed on opposite sides of the first bracket, the first blade is connected to the main shaft of the first motor, and the second connecting component is disposed on the first bracket.

[0014] In the cutter head mechanism of this application, the mounting component includes a second bracket, the cutting unit includes a cutter head, a second blade and a second motor, the second blade is disposed on the cutter head, the cutter head and the second motor are respectively disposed on opposite sides of the second bracket, the main shaft of the second motor is connected to the cutter head, and the second connecting component is disposed on the second bracket.

[0015] In the cutter head mechanism of this application, the protective cover is provided with a receiving groove, and the shape and size of the mounting member are the same as those of the receiving groove, and the mounting member is installed in the receiving groove.

[0016] In the cutter head mechanism of this application, the first connecting member is disposed on the edge of the receiving groove, and the second connecting member is disposed on the edge of the mounting member.

[0017] In the cutter head mechanism of this application, the connection structure includes a plurality of first connecting members and a plurality of second connecting members. The plurality of first connecting members are spaced apart on the protective cover, and the plurality of second connecting members are spaced apart on the mounting member. The positions of each first connecting member and each second connecting member correspond one-to-one.

[0018] In the cutter head mechanism of this application, the first bracket is provided with a first mounting groove, and the first motor is assembled in the first mounting groove.

[0019] In the cutter head mechanism of this application, the second bracket is provided with a second mounting groove, and the second motor is assembled in the second mounting groove.

[0020] Secondly, this application also provides a lawnmower, including a lawnmower body and the blade mechanism, the blade mechanism being connected to the lawnmower body.

[0021] This application provides a cutter head mechanism, the advantages of which are:

[0022] The cutter head mechanism of this application includes a protective cover, a cutter head assembly, and a connecting structure. The cutter head assembly includes a mounting component and a cutting unit. The cutting unit is rotatably mounted on the mounting component and cuts grass. The protective cover covers the periphery of the cutting unit to protect it. The protective cover has a first connecting component facing the cutter head assembly, and the mounting component has a second connecting component facing the protective cover. The mounting component and the protective cover are assembled and fixed through the connection of the first connecting component and the second connecting component, realizing a detachable connection between the mounting component and the protective cover. This facilitates the removal and replacement of the cutter head assembly from the protective cover without replacing the entire cutter head mechanism, thereby improving the efficiency of replacing cutting components. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the cutter head mechanism provided in an embodiment of this application;

[0025] Figure 2 Another structural schematic diagram of the cutter head mechanism provided in the embodiments of this application;

[0026] Figure 3 An exploded view of the cutter head mechanism provided in the embodiments of this application;

[0027] Figure 4 Another exploded view of the cutter head mechanism provided in the embodiments of this application;

[0028] Figure 5 Another exploded view of the cutter head mechanism provided in the embodiments of this application;

[0029] Figure 6 This is a schematic diagram of the structure of the protective cover provided in the embodiments of this application;

[0030] Figure 7 This is a schematic diagram of the structure of the cutter head assembly provided in an embodiment of this application;

[0031] Figure 8 This is another structural schematic diagram of the cutter head assembly provided in an embodiment of this application;

[0032] Figure 9 This is a schematic diagram of the cutting unit provided in an embodiment of this application.

[0033] The markings in the image are as follows:

[0034] 10. Protective cover; 11. Receiving tank;

[0035] 20. Cutter head assembly; 21. Mounting component; 211. First bracket; 212. Second bracket; 213. First mounting slot; 214. Second mounting slot; 22. Cutting unit; 221. First blade; 2211. Mounting part; 2212. Cutting part; 222. First motor; 223. Cutter head; 224. Second blade; 225. Second motor;

[0036] 30. Connecting structure; 31. First connecting member; 32. Second connecting member;

[0037] 40. Fasteners;

[0038] 100. Cutter head mechanism. Detailed Implementation

[0039] The specific embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but are not intended to limit the scope of this application.

[0040] In the description of this application, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc. used in this application to indicate the orientation or positional relationship are based on the positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device and element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0041] In the description of this application, it should be understood that the terms "first," "second," etc., are used to describe various types of information, but these terms are not limited to them and are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0042] like Figures 1 to 4 As shown, this application embodiment provides a cutter head mechanism 100, including a protective cover 10, a cutter head assembly 20, and a connecting structure 30. The cutter head assembly 20 includes a mounting member 21 and a cutting unit 22. The cutting unit 22 is rotatably disposed on the mounting member 21, and the protective cover 10 covers the periphery of the cutting unit 22. The connecting structure 30 includes a first connecting member 31 and a second connecting member 32. The first connecting member 31 is disposed on the protective cover 10, and the second connecting member 32 is disposed on the mounting member 21. The first connecting member 31 and the second connecting member 32 are detachably connected.

[0043] In this embodiment, the cutter head assembly 20 and the protective cover 10 are assembled to form the cutter head mechanism 100. The cutter head mechanism 100 is applied to a lawnmower, and the protective cover 10 is connected to the lifting mechanism of the lawnmower, thereby realizing the lifting function of the cutter head mechanism 100. The cutting unit 22 is rotatably mounted on the mounting member 21, and the cutting unit 22 cuts the grass. The protective cover 10 covers the periphery of the cutting unit 22 to protect the cutting unit 22, thereby reducing the danger of the cutting unit 22 and preventing grass clippings from flying during cutting.

[0044] The connecting structure 30 is used to connect the protective cover 10 to the cutter head assembly 20. The protective cover 10 is provided with a first connecting member 31 facing the cutter head assembly 20, and the mounting member 21 is provided with a second connecting member 32 facing the protective cover 10. By connecting the first connecting member 31 and the second connecting member 32, the mounting member 21 and the protective cover 10 are assembled and fixed, realizing the detachable connection between the mounting member 21 and the protective cover 10. This facilitates the removal and replacement of the cutter head assembly 20 from the protective cover 10 without having to replace the entire cutter head mechanism 100, thereby improving the efficiency of replacing cutting components.

[0045] In this embodiment, the first connector 31 and the second connector 32 can be connected by a connecting post and a connecting groove, or by two connecting rods being inserted into each other, or by a snap-fit ​​connection between a buckle and a buckle groove, etc. This embodiment does not impose specific limitations.

[0046] In some embodiments, such as Figures 3 to 4 , Figure 6 Figure 8 As shown, the first connector 31 includes a connecting post, and the second connector 32 includes a connecting groove; the connecting post is inserted into the connecting groove and is tightly connected to the connecting groove.

[0047] Specifically, the mounting component 21 is provided with a connecting groove facing the protective cover 10, and the protective cover 10 is provided with a connecting post facing the mounting component 21. The mounting component 21 and the protective cover 10 are detachably connected by inserting the connecting post into the connecting groove and tightly fitting the connecting groove.

[0048] In some embodiments, the first connector 31 includes a connecting groove, and the second connector 32 includes a connecting post; the connecting post is inserted into the connecting groove and is tightly fitted to the connecting groove.

[0049] Specifically, the mounting component 21 is provided with a connecting post facing the protective cover 10, and the protective cover 10 is provided with a connecting groove facing the mounting component 21. The mounting component 21 and the protective cover 10 are detachably connected by inserting the connecting post into the connecting groove and tightly fitting it.

[0050] In this embodiment, the shape and size of the connecting post (or connecting groove) are not specifically limited. The connecting post can be cylindrical, square or other shapes, and the dimensions and shape of the connecting post and the connecting groove are matched.

[0051] In some embodiments, such as Figure 3 and Figure 4 As shown, the cutter head mechanism 100 also includes a fastener 40; the connecting column is provided with a first mounting hole, the connecting groove is provided with a second mounting hole, and the fastener 40 passes through the first mounting hole and the second mounting hole.

[0052] Specifically, based on the tight fit connection achieved by inserting the connecting post into the connecting groove, this embodiment uses fasteners 40 to fix the connecting post and the connecting groove together by passing through the first mounting hole and the second mounting hole, thereby enhancing the connection strength between the mounting component 21 and the protective cover 10.

[0053] For example, the first mounting hole and the second mounting hole are threaded holes, and the fastener 40 is a screw. The screw is installed into the first mounting hole and the second mounting hole and tightened to achieve threaded fastening. When replacing the cutter head assembly 20, the screw is loosened and the connecting post is pulled out of the connecting groove to separate the mounting part 21 from the protective cover 10, making the replacement of the cutter head assembly 20 convenient and quick, and reducing the difficulty of disassembling and replacing the cutter head assembly 20.

[0054] In some embodiments, such as Figure 7 As shown, the mounting component 21 includes a first bracket 211, the cutting unit 22 includes a first blade 221 and a first motor 222. The first motor 222 and the first blade 221 are respectively located on opposite sides of the first bracket 211. The first blade 221 is connected to the spindle of the first motor 222. The second connector 32 is located on the first bracket 211.

[0055] Specifically, the first bracket 211 is provided with a second connector 32 facing the protective cover 10. The first bracket 211 and the protective cover 10 are assembled and fixed through the connection between the first connector 31 and the second connector 32.

[0056] In the cutting unit 22 of this embodiment, the first motor 222 is mounted on the first bracket 211. The first motor 222 directly drives the first blade 221 to rotate, and the cutting function of the cutting unit 22 is realized through the first blade 221.

[0057] In some embodiments, such as Figure 7 As shown, the first bracket 211 is provided with a first mounting groove 213, and the first motor 222 is assembled in the first mounting groove 213.

[0058] Specifically, the first bracket 211 has a first mounting groove 213 on the side opposite to the first blade 221, and the main body of the first motor 222 is assembled in the first mounting groove 213 to improve the operating stability of the first motor 222 and reduce the vibration and noise generated by the first motor 222.

[0059] In some embodiments, such as Figure 7 As shown, the first bracket 211 is provided with two first mounting slots 213, and two first motors 222 are installed in the two first mounting slots 213 in a one-to-one correspondence to form a double blade disc structure.

[0060] In some embodiments, such as Figure 8 As shown, the mounting component 21 includes a second bracket 212, and the cutting unit 22 includes a cutter head 223, a second blade 224, and a second motor 225. The second blade 224 is disposed on the cutter head 223. The cutter head 223 and the second motor 225 are respectively disposed on opposite sides of the second bracket 212. The spindle of the second motor 225 is connected to the cutter head 223, and the second connecting member 32 is disposed on the second bracket 212.

[0061] Specifically, the second bracket 212 is provided with a second connector 32 facing the protective cover 10. The second bracket 212 and the protective cover 10 are assembled and fixed through the connection between the first connector 31 and the second connector 32.

[0062] In the cutting unit 22 of this embodiment, the second motor 225 is mounted on the second bracket 212, and the second blade 224 is disposed on the edge of the cutter disc 223. The second motor 225 drives the cutter disc 223 to rotate, and the cutter disc 223 drives the second blade 224 to rotate, thereby realizing the cutting function of the cutting unit 22.

[0063] In some embodiments, such as Figure 8 As shown, the second bracket 212 is provided with a second mounting groove 214, and the second motor 225 is assembled in the second mounting groove 214.

[0064] Specifically, the second bracket 212 has a second mounting groove 214 on the side opposite to the second blade 224, and the main body of the second motor 225 is assembled in the second mounting groove 214 to improve the operating stability of the second motor 225 and reduce the vibration and noise generated by the second motor 225.

[0065] In some embodiments, such as Figure 8 As shown, the second bracket 212 is provided with three second mounting slots 214, and three second motors 225 are installed in the three second mounting slots 214 in a one-to-one correspondence to form a three-blade disc structure.

[0066] Understandably, the dual-disc and triple-disc structures are cutting units 22 with different numbers and structures of cutting components, and are applied to different scenarios. The dual-disc structure has strong cutting ability but generates more noise, and is used in noisy scenarios, such as grassy fields; the triple-disc structure has relatively weaker cutting ability but generates less noise, and is used in quieter scenarios, such as golf courses with soft grass.

[0067] In some embodiments, such as Figure 5 As shown, the cutter head mechanism 100 includes a double-cutter head structure and a triple-cutter head structure. That is, the cutter head mechanism 100 includes two cutting units 22 with different structures. The double-cutter head structure or the triple-cutter head structure can be selected according to the specific application scenario to improve the applicability of the lawnmower.

[0068] In some embodiments, such as Figure 9 As shown, the first blade 221 includes a mounting portion 2211 and a cutting portion 2212 connected to the mounting portion 2211. The mounting portion 2211 is connected to the spindle of the first motor 222. The distance from the end of the cutting portion 2212 away from the mounting portion 2211 to the mounting portion 2211 is a first distance. The distance from the second blade 224 to the connection point between the cutter head 223 and the spindle of the second motor 225 is a second distance. The second distance is less than the first distance, and the power of the second motor 225 is less than the power of the first motor 222.

[0069] Understandably, in noisy environments, a more powerful cutting unit 22 is needed to complete the mowing task; a high-powered motor and a longer blade can meet this requirement. In quieter environments, the requirement for cutting power is relatively lower; a lower power and a shorter blade can ensure cutting results and reduce noise generation.

[0070] In this embodiment, the first blade 221 is fixed to the spindle of the first motor 222 via the mounting part 2211, and cuts grass through the cutting part 2212. Since the distance from the cutting part 2212 to the spindle of the first motor 222 is greater than the distance from the second blade 224 to the rotating part of the cutter head 223, the cutting torque and cutting range of the first blade 221 are greater than those of the second blade 224. Correspondingly, the first motor 222 has higher power, providing greater torque and speed, and the double-blade head structure is used in noisy environments; while the second motor 225 has lower power, and the triple-blade head structure is used in quieter environments. The choice between a double-blade head structure and a triple-blade head structure depends on the specific application scenario.

[0071] In some embodiments, such as Figures 3 to 4 As shown, the protective cover 10 is provided with a receiving groove 11, and the shape and size of the mounting part 21 are the same as those of the receiving groove 11. The mounting part 21 is installed in the receiving groove 11.

[0072] Specifically, the inner contour shape and size of the receiving groove 11 are the same as the outer contour shape and size of the mounting part 21. The mounting part 21 is tightly installed in the receiving groove 11 and connected and fixed to the protective cover 10 to assemble the blade assembly 20. When the lawnmower is running, the cutting unit 22 is subjected to the reaction force from the grass and vibrates. Installing the mounting part 21 in the receiving groove 11 reduces the vibration of the blade assembly 20 and reduces the noise of the lawnmower.

[0073] In some embodiments, such as Figures 4 to 8 As shown, the first connector 31 is located on the edge of the receiving groove 11, and the second connector 32 is located on the edge of the mounting member 21.

[0074] Specifically, when the mounting component 21 is tightly installed in the receiving groove 11, the second connecting component 32 at the edge of the mounting component 21 is connected and fixed to the first connecting component 31 at the edge of the receiving groove 11, thereby enhancing the connection strength between the mounting component 21 and the protective cover 10.

[0075] In some embodiments, such as Figures 6 to 8 As shown, the connection structure 30 includes a plurality of first connectors 31 and a plurality of second connectors 32. The plurality of first connectors 31 are spaced apart on the protective cover 10, and the plurality of second connectors 32 are spaced apart on the mounting member 21. The positions of each first connector 31 and each second connector 32 correspond one-to-one.

[0076] For example, the first connector 31 includes a connecting groove, and the second connector 32 includes a connecting post. The protective cover 10 is provided with a plurality of spaced-apart connecting posts, and the mounting member 21 is provided with a plurality of spaced-apart connecting grooves, with each connecting post inserted into a corresponding connecting groove.

[0077] On the other hand, this utility model embodiment also provides a lawnmower (not shown in the drawings), including a lawnmower body and a blade mechanism 100, the blade mechanism 100 being connected to the lawnmower body.

[0078] Specifically, the lawnmower body is the main structure of the lawnmower, including components such as a power unit, a control unit, and a walking unit. The blade disc mechanism 100 is detachably connected to the lawnmower body, and the blade disc mechanism 100 achieves its cutting function through the cutting unit 22 of the blade disc assembly 20. The advantages of the blade disc mechanism 100 are as described in the above embodiments, and will not be repeated in this embodiment.

[0079] It should be understood that the term "and / or" as used in this specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations. It should be noted that, herein, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0080] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above descriptions are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A cutter head mechanism, characterized in that, include: Protective casing; A cutter head assembly includes a mounting component and a cutting unit, wherein the cutting unit is rotatably mounted on the mounting component, and a protective cover is provided around the periphery of the cutting unit. The connection structure includes a first connector and a second connector. The first connector is disposed on the protective cover, and the second connector is disposed on the mounting component. The first connector and the second connector are detachably connected.

2. The cutter head mechanism according to claim 1, characterized in that, The first connector includes a connecting post, and the second connector includes a connecting groove; or the first connector includes a connecting groove, and the second connector includes a connecting post. The connecting post is inserted into the connecting groove and is tightly fitted to the connecting groove.

3. The cutter head mechanism according to claim 2, characterized in that, The cutter head mechanism also includes fasteners; The connecting post is provided with a first mounting hole, the connecting groove is provided with a second mounting hole, and the fastener passes through the first mounting hole and the second mounting hole.

4. The cutter head mechanism according to claim 1, characterized in that, The mounting component includes a first bracket, and the cutting unit includes a first blade and a first motor. The first motor and the first blade are respectively disposed on opposite sides of the first bracket. The first blade is connected to the main shaft of the first motor, and the second connecting component is disposed on the first bracket.

5. The cutter head mechanism according to claim 1, characterized in that, The mounting component includes a second bracket, the cutting unit includes a cutter head, a second blade, and a second motor, the second blade is disposed on the cutter head, the cutter head and the second motor are respectively disposed on opposite sides of the second bracket, the main shaft of the second motor is connected to the cutter head, and the second connecting member is disposed on the second bracket.

6. The cutter head mechanism according to claim 4, characterized in that, The protective cover is provided with a receiving groove, and the shape and size of the mounting component are the same as those of the receiving groove. The mounting component is installed in the receiving groove.

7. The cutter head mechanism according to claim 6, characterized in that, The first connector is located at the edge of the receiving groove, and the second connector is located at the edge of the mounting member.

8. The cutter head mechanism according to any one of claims 1 to 6, characterized in that, The connection structure includes a plurality of first connectors and a plurality of second connectors. The plurality of first connectors are spaced apart on the protective cover, and the plurality of second connectors are spaced apart on the mounting component. The positions of each first connector and each second connector correspond one-to-one.

9. The cutter head mechanism according to claim 4, characterized in that, The first bracket is provided with a first mounting slot, and the first motor is assembled in the first mounting slot.

10. The cutter head mechanism according to claim 5, characterized in that, The second bracket is provided with a second mounting slot, and the second motor is assembled in the second mounting slot.

11. A lawnmower, characterized in that, It includes a lawnmower body and a blade disc mechanism as described in any one of claims 1 to 10, wherein the blade disc mechanism is connected to the lawnmower body.

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