Cutter head assembly and self-moving equipment

Abstract

The utility model relates to the technical field of self-moving equipment, and particularly discloses a cutter head assembly and self-moving equipment. The cutterhead assembly comprises a cutterhead, a rotating part and a connecting base, the cutterhead comprises a body, the body is provided with a connecting face and a cutting face which are opposite to each other, the body is provided with a first knob hole penetrating through the connecting face and the cutting face, the rotating part is arranged on the cutting face, a clamping hook is arranged on the side, facing the body, of the rotating part in a protruding mode and used for penetrating through the first knob hole, and the connecting base is arranged on the connecting face. The connecting seat is provided with an assembling surface and a clamping surface which are opposite to each other, the assembling surface faces the connecting surface, the clamping surface is used for being connected with an external driver, the connecting seat is provided with a second knob hole penetrating through the assembling surface and the clamping surface, the clamping surface is provided with a clamping part adjacent to the second knob hole, and the clamping part is matched with the clamping hook; the clamping hook of the rotating piece is sequentially inserted into the first knob hole and the second knob hole, and the clamping hook is clamped with the clamping part by rotating the rotating piece. According to the cutterhead assembly and the self-moving equipment, the cutterhead can be quickly disassembled.

Description

Technical Field

[0001] This application relates to the technical field of self - moving devices, and particularly to a cutter head assembly and a self - moving device. Background Art

[0002] With the development of device intelligence and the continuous improvement of people's living standards, lawn mowers have gradually evolved into lawn mowing robots that can automatically mow grass, automatically charge, and automatically clean. The lawn mowing robot performs mowing operations on the lawn within a defined range according to the user's settings. When performing mowing operations, the drive of the lawn mowing robot drives the cutter head and the blade to rotate for mowing. However, most current cutter heads are fixedly installed at the bottom of the lawn mowing robot with screws, and special tools are required to disassemble and assemble the cutter head, which is inconvenient when cleaning the grass entangled on the cutter head or replacing and maintaining the cutter head. Utility Model Content

[0003] In view of the above, it is necessary to provide a cutter head assembly and a self - moving device to achieve quick disassembly and assembly of the cutter head.

[0004] An embodiment of this application provides a cutter head assembly, including a cutter head, a rotating member, and a connecting seat;

[0005] The cutter head includes a body, the body has opposite connecting surfaces and cutting surfaces, and the body is provided with a first knob hole penetrating through the connecting surface and the cutting surface;

[0006] The rotating member is disposed on the cutting surface, and a hook protrudes from a side of the rotating member facing the body, and the hook is used to pass through the first knob hole;

[0007] The connecting seat is disposed on the connecting surface, the connecting seat has opposite assembly surfaces and clamping surfaces, the assembly surface faces the connecting surface, the clamping surface is used to connect with an external driver, the connecting seat is provided with a second knob hole penetrating through the assembly surface and the clamping surface, and a clamping portion adjacent to the second knob hole is provided on the clamping surface, and the clamping portion is adapted to the hook; wherein,

[0008] The hook of the rotating member is sequentially inserted into the first knob hole and the second knob hole, and the hook is clamped with the clamping portion by rotating the rotating member.

[0009] For the above cutter head assembly, when assembling the cutter head, the clamping surface of the connecting seat is fixedly connected to an external drive, the connecting surface of the cutter head is connected to the assembly surface of the connecting seat, and the first knob hole and the second knob hole are made to correspond to each other. The hooks of the rotating member are sequentially inserted into the first knob hole and the second knob hole, and by rotating the rotating member, the hooks are rotated to the clamping portion, so that the hooks are clamped with the clamping portion. The cutter head is fixed to the connecting seat through the rotating member. Since the connecting seat is fixed to the external drive, the cutter head is fixed to the external drive, thus realizing the rapid assembly of the cutter head; when disassembling the cutter head, by rotating the rotating member in the reverse direction, the hooks are disengaged from the clamping portion, and the rotating member is pulled outwards. When the rotating member is pulled out, the clamping and fixing effect of the rotating member on the cutter head and the connecting seat no longer exists, and the cutter head can be removed from the connecting seat, thus realizing the rapid disassembly of the cutter head. In the cutter head assembly according to the embodiment of the present application, through the cooperation of the cutter head, the rotating member and the connecting seat, by rotating and reversely rotating the rotating member, the assembly and disassembly of the cutter head can be realized, and the disassembly and assembly of the cutter head are convenient, thus realizing the effect of rapid disassembly and assembly of the cutter head.

[0010] In some embodiments, the clamping portion includes a groove recessed from the clamping surface towards the assembly surface and spaced from the second knob hole, and a clamping bar disposed between the groove and the second knob hole. The hook includes a protruding portion protruding from the rotating member, an extending portion connected to the protruding portion, and a barb disposed on the extending portion. The barb and the protruding portion are located on the same side of the extending portion. The hook and the clamping portion are clamped through the cooperation of the barb with the clamping bar and the groove.

[0011] For the above cutter head assembly, by defining the specific structures of the clamping portion and the hook, the hook and the clamping portion are fixed and clamped. Moreover, the structures of the clamping portion and the hook are simple, the disassembly and assembly are convenient, and the clamping effect is stable, which is conducive to realizing the effect of rapid disassembly and assembly of the cutter head.

[0012] In some embodiments, the cutter head further includes a mounting portion protruding from the connecting surface. The mounting portion is adjacent to the first knob hole. The assembly surface is provided with a connecting portion adapted to be connected to the mounting portion. The cutter head and the connecting seat are connected through the cooperation of the mounting portion and the connecting portion.

[0013] For the above cutter head assembly, by providing the above mounting portion and connecting portion, the connection between the cutter head and the connecting seat is realized, so that the connecting seat can drive the cutter head to rotate stably under the drive of the external drive for cutting operations.

[0014] In some embodiments, the cutter head is provided with an insertion hole penetrating the cutting surface, the connecting surface and the mounting portion. The assembly surface is provided with an annular groove surrounding the connecting portion. The connecting portion is adapted to be inserted into the insertion hole, and the mounting portion is adapted to be inserted into the annular groove.

[0015] For the above cutter head assembly, by providing the above insertion holes and annular grooves, the cutter head and the connecting seat are inserted into each other, thereby reducing the thickness of the cutter head assembly, and the connection method between the cutter head and the connecting seat is simple, which is conducive to the realization of a thin and light design of the cutter head assembly.

[0016] In some embodiments, the cutter head assembly further includes an elastic unit, the elastic unit is disposed between the cutter head and the rotating member, and the elastic unit elastically abuts against the rotating member.

[0017] For the above cutter head assembly, by providing the above elastic unit, when the hook of the rotating member is engaged with the engaging portion of the connecting seat, the elastic unit elastically abuts against the rotating member, so that the hook of the rotating member can be stably engaged with the engaging portion to ensure the fixed connection between the cutter head and the connecting seat.

[0018] In some embodiments, the elastic unit includes an abutting member, a first elastic arm and a second elastic arm. One end of the abutting member is located in the insertion hole, and the other end of the abutting member protrudes from the cutting surface for abutting against the rotating member. One end of the first elastic arm is connected to the abutting member, the other end of the first elastic arm is connected to the hole wall of the insertion hole, one end of the second elastic arm is connected to the abutting member, the other end of the second elastic arm is connected to the hole wall of the insertion hole, and the first elastic arm and the second elastic arm can be elastically deformed.

[0019] For the above cutter head assembly, by providing the specific structure of the above elastic unit, when the hook of the rotating member is engaged with the engaging portion of the connecting seat, the abutting member is pressed by the rotating member and drives the first elastic arm and the second elastic arm to elastically deform, so that the abutting member elastically abuts against the rotating member under the elastic support of the first elastic arm and the second elastic arm to ensure the fixed connection between the cutter head and the connecting seat. When the cutter head needs to be disassembled, by pressing the rotating member, the rotating member presses the abutting member, and the abutting member drives the first elastic arm and the second elastic arm to elastically deform. Since the first elastic arm and the second elastic arm can undergo elastic deformation, the rotating member can move towards the cutter head, so that the hook and the engaging portion can be disengaged, and then by reversely rotating the rotating member, the hook and the engaging portion are misaligned and separated, so as to facilitate the removal of the rotating member, and thus the cutter head can be disassembled from the connecting seat.

[0020] In some embodiments, the cutter head further includes a positioning post, the positioning post is disposed on the connecting surface and is spaced from the first knob hole, the assembling surface is provided with a positioning hole adapted to the positioning post, and the cutter head and the connecting seat are positioned and connected by the positioning post being inserted into the positioning hole in a matching manner.

[0021] For the above cutter head assembly, by providing the above positioning post and positioning hole, the cutter head and the connecting seat are positioned and connected to ensure the connection accuracy between the cutter head and the connecting seat.

[0022] In some embodiments, an indicating portion is provided on a side of the rotating member facing away from the cutter head, and the indicating portion and the engaging hook are correspondingly disposed on opposite sides of the rotating member; and / or, a stress portion is provided on a side of the rotating member facing away from the cutter head, and the stress portion is configured to receive an external force to rotate the rotating member.

[0023] For the above-described cutter head assembly, by providing the above-described indicating portion, it is convenient to observe the position of the engaging hook, which is beneficial to inserting the engaging hook of the rotating member into the first knob hole and the second knob hole, facilitating the assembly of the cutter head, the rotating member, and the connecting seat; and / or, by providing the above-described stress portion on the rotating member, it is convenient for an external force to act on the rotating member to rotate the rotating member.

[0024] In some embodiments, the cutter head assembly further includes a plurality of blades, and the plurality of blades are spaced apart in the circumferential direction of the cutting surface or the circumferential direction of the connecting surface.

[0025] For the above-described cutter head assembly, by providing the above-described blades, the cutting operation is achieved through the blades.

[0026] An embodiment of the present application further provides a self-mobile device, including a main body, a driver, and the cutter head assembly according to any one of the above technical solutions. The driver is disposed on the main body, the connecting seat of the cutter head assembly is connected to the driver, and the engaging surface of the connecting seat faces the driver. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 FIG. is a schematic structural diagram of the cutter head assembly and the driver provided by an embodiment of the present application.

[0028] Figure 2 is Figure 1 FIG. is an exploded schematic diagram of the shown cutter head assembly and the driver.

[0029] Figure 3 is Figure 1 FIG. is a schematic structural diagram of the shown cutter head assembly from another perspective.

[0030] Figure 4 is Figure 2 FIG. is a schematic structural diagram of the cutter head, the blades, and the elastic unit of the shown cutter head assembly.

[0031] Figure 5 is Figure 4 FIG. is a schematic structural diagram of the cutter head, the blades, and the elastic unit from another perspective of the shown cutter head, the blades, and the elastic unit.

[0032] Figure 6 is Figure 2 FIG. is a schematic structural diagram of the rotating member of the shown cutter head assembly.

[0033] Figure 7 is Figure 2Schematic diagram of the connection seat of the cutter head assembly shown

[0034] Figure 8 is Figure 7 Schematic diagram of another perspective of the connection seat shown

[0035] Description of main component symbols

[0036] Cutter head assembly 100

[0037] Cutter head 10

[0038] Body 11

[0039] Connection surface 111

[0040] Cutting surface 112

[0041] First knob hole 113

[0042] Installation part 12

[0043] Insertion hole 13

[0044] Positioning post 14

[0045] Assembly part 15

[0046] Rotating part 20

[0047] Hook 21

[0048] Protruding part 211

[0049] Extension part 212

[0050] Barb 213

[0051] Receiving groove 22

[0052] Concave arc part 23

[0053] Convex arc part 24

[0054] Force-receiving part 25

[0055] Indicator part 26

[0056] Connection seat 30

[0057] Assembly surface 31

[0058] Circular groove 311

[0059] Positioning hole 312

[0060] Clamping surface 32

[0061] Second knob hole 33

[0062] Clamping part 34

[0063] Groove 341

[0064] Latching strip 342

[0065] Connecting part 35

[0066] Connecting hole 351

[0067] Assembly part 36

[0068] Assembly hole 361

[0069] Blade 40

[0070] Elastic unit 50

[0071] Abutting part 51

[0072] First elastic arm 52

[0073] Second elastic arm 53

[0074] External driver 200 Detailed implementation manners

[0075] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary only for explaining the present application and should not be construed as a limitation to the present application.

[0076] In the description of the present application, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, it should be noted that the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0077] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows mutual communication. It can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to specific circumstances.

[0078] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0079] Please refer to Figure 1 , an embodiment of the present application provides a cutter head assembly 100. The cutter head assembly 100 is applied to self-propelled devices such as lawn mowing robots, floor cleaning robots, etc., or other devices that require quick-release operations. Among them, when the cutter head assembly 100 is applied to a lawn mowing robot, it can perform lawn mowing operations, and when the cutter head assembly 100 is applied to a floor cleaning robot, it can perform floor cleaning operations. The embodiments of the present application do not make specific limitations on this.

[0080] Please refer to in combination Figure 1 , Figure 2 and Figure 3 , the cutter head assembly 100 includes a cutter head 10, a rotating member 20, and a connecting seat 30.

[0081] Please refer to in combination Figure 4 and Figure 5 , the cutter head 10 includes a body 11. The body 11 has opposite connecting surfaces 111 and cutting surfaces 112. During actual operation, the cutting surface 112 faces the ground. Among them, both the connecting surface 111 and the cutting surface 112 can be flat surfaces, curved surfaces, or other regular or irregular shaped surfaces. The surface types of the connecting surface 111 and the cutting surface 112 can be the same or different. The embodiments of the present application do not make specific limitations on this. The body 11 is provided with a first knob hole 113 that penetrates the connecting surface 111 and the cutting surface 112. Among them, the first knob hole 113 can be arc-shaped.

[0082] Please refer to in combination Figure 6 , the rotating member 20 is arranged on the cutting surface 112. It can be understood that when the rotating member 20, the cutter head 10, and the connecting seat 30 are assembled, the rotating member 20 is assembled to the cutter head 10 and the connecting seat 30 from the cutting surface 112 of the cutter head 10. When the rotating member 20, the cutter head 10, and the connecting seat 30 are assembled, the rotating member 20 is connected to the cutting surface 112 of the cutter head 10. A hook 21 protrudes from the side of the rotating member 20 facing the cutting surface 112, and the hook 21 is used to pass through the first knob hole 113.

[0083] Please refer to in combination Figure 7 andFigure 8 , the connecting seat 30 is arranged on the connecting surface 111. Understandably, when the rotating member 20, the cutter head 10 and the connecting seat 30 are assembled, the connecting seat 30 is connected to the connecting surface 111 of the cutter head 10. The connecting seat 30 has opposite assembling surfaces 31 and clamping surfaces 32. The assembling surface 31 faces the connecting surface 111, that is, the assembling surface 31 is connected to the connecting surface 111. The clamping surface 32 is used for connecting with an external driver 200 (please refer to Figure 1 and Figure 2 ). The connecting seat 30 is provided with a second knob hole 33 penetrating through the assembling surface 31 and the clamping surface 32. The second knob hole 33 can be arc-shaped and corresponds to the first knob hole 113. The clamping surface 32 is provided with a clamping portion 34 adjacent to the second knob hole 33. The clamping portion 34 is adapted to the clamping hook 21. That is, it can be understood that one side of the clamping portion 34 facing the second knob hole 33 can serve as the hole wall of the second knob hole 33. Among them, the clamping hook 21 of the rotating member 20 is sequentially inserted into the first knob hole 113 and the second knob hole 33, and the clamping hook 21 is clamped with the clamping portion 34 by rotating the rotating member 20, so that the rotating member 20 fixes the cutter head 10 on the connecting seat 30.

[0084] For the above-mentioned cutter head assembly 100, when assembling the cutter head 10, the clamping surface 32 of the connecting seat 30 faces the external driver 200 and is fixedly connected to the external driver 200. The connecting surface 111 of the cutter head 10 faces the assembling surface 31 of the connecting seat 30 and is connected to the assembling surface 31, and the first knob hole 113 corresponds to the second knob hole 33. The clamping hook 21 of the rotating member 20 is sequentially inserted into the first knob hole 113 and the second knob hole 33, and the clamping hook 21 is rotated to the clamping portion 34 by rotating the rotating member 20, so that the clamping hook 21 is clamped with the clamping portion 34. The cutter head 10 is fixed on the connecting seat 30 by the rotating member 20. Since the connecting seat 30 is fixed on the external driver 200, the cutter head 10 is fixed on the external driver 200. The external driver 200 drives the connecting seat 30 to rotate, and the connecting seat 30 drives the cutter head 10 and the rotating member 20 to rotate. When disassembling the cutter head 10, the clamping hook 21 is disengaged from the clamping portion 34 by rotating the rotating member 20 in the reverse direction, and the rotating member 20 is pulled outwards. When the rotating member 20 is pulled out, the cutter head 10 and the connecting seat 30 are no longer under the clamping and fixing action of the rotating member 20. At this time, the cutter head 10 can be removed from the connecting seat 30, thus realizing the quick disassembly of the cutter head 10.

[0085] In this embodiment, the number of the first knob holes 113 can be two, and the two first knob holes 113 are symmetrically arranged about the rotation axis of the cutter disc 10. The number of the second knob holes 33 can also be two, and the two second knob holes 33 are symmetrically arranged about the rotation axis of the connecting seat 30. The number of the hooks 21 can also be two, and the two hooks 21 are symmetrically arranged about the center point of the rotation axis of the rotating member 20. Thus, by providing two first knob holes 113, two second knob holes 33 and two hooks 21, the connection stability among the rotating member 20, the cutter disc 10 and the connecting seat 30 is ensured.

[0086] It can be understood that in other embodiments, the number of the first knob holes 113, the second knob holes 33 and the hooks 21 can be more or less, such as one, three, four, etc. The embodiments of the present application do not make specific limitations thereto.

[0087] In this embodiment, the cutter disc assembly 100 further includes a plurality of blades 40. The plurality of blades 40 are arranged at intervals in the circumferential direction of the cutting surface 112. Specifically, the number of the plurality of blades 40 can be four, and the blades 40 are used for mowing operations. Thus, by providing the above-mentioned blades 40, the cutter disc assembly 100 realizes the cutting operation through the blades 40.

[0088] It can be understood that in other embodiments, the number of the plurality of blades 40 can also be more or less, such as two, three, five, six, etc. The embodiments of the present application do not make specific limitations thereto.

[0089] It can be understood that in other embodiments, the plurality of blades 40 can also be arranged at intervals in the circumferential direction of the connecting surface 111.

[0090] It can be understood that in other embodiments, the blades 40 can also be replaced with sweeping members.

[0091] In order to achieve fixed clamping between the hook 21 and the clamping portion 34, in this embodiment, the clamping portion 34 includes a groove 341 that is recessed from the clamping surface 32 toward the assembly surface 31 and is spaced apart from the second knob hole 33, and a clamping strip 342 that is disposed between the groove 341 and the second knob hole 33. It can be understood that the clamping surface 32 can be roughly a step surface. The hook 21 includes a protruding portion 211 protruding from the rotating member 20, an extension portion 212 connected to the protruding portion 211, and a barb 213 disposed on the extension portion 212. The barb 213 and the protruding portion 211 are located on the same side of the extension portion 212. The hook 21 and the clamping portion 34 are clamped together by the cooperation of the barb 213, the clamping strip 342 and the groove 341. Among them, the barb 213 and the clamping strip 342 can be roughly stepped, and the protruding portion 211 and the extending portion 212 can be vertically connected. The vertical connection between the protruding portion 211 and the extending portion 212 can be understood as a roughly vertical connection between the protruding portion 211 and the extending portion 212, that is, the angle between the protruding portion 211 and the extending portion 212 can be, for example, between 80° and 100° or other angles, and the embodiments of the present application do not make specific limitations on this.

[0092] It can be understood that in other embodiments, the protruding portion 211 and the extending portion 212 can also be connected at an angle, and the angle between the protruding portion 211 and the extending portion 212 can be, for example, 30°, 60°, 120°, 150°, etc., which is not specifically limited in the embodiments of the present application.

[0093] Among them, the specific clamping process of the hook 21 and the holding part 34 is roughly as follows: after the hook 21 is inserted into the first knob hole 113 and the second knob hole 33 in sequence, the extension part 212 and the barb 213 of the hook 21 are roughly located on the side of the clamping surface 32 away from the assembly surface 31, and the rotating part 20 is rotated to make the barb 213 and the extension part 212 move toward the holding part 34, and the barb 213 and the clamping strip 342 are matched through the inclined surface to make the barb 213 pass through the clamping strip 342 to move into the groove 341. When the barb 213 moves into the groove 341, the clamping strip 342 forms a limit on the barb 213, so that the barb 213 cannot be easily separated from the clamping strip 342, thereby realizing the fixed clamping of the hook 21 and the holding part 34. When it is necessary to disengage the hook 21 from the holding portion 34, the rotating member 20 is rotated in the opposite direction so that the barb 213 and the extension portion 212 move away from the holding portion 34. The barb 213 and the retaining strip 342 are fitted with an inclined surface so that the barb 213 passes through the retaining strip 342 and moves to the second knob hole 33, thereby achieving the disengagement of the hook 21 from the retaining portion 34.

[0094] Thus, by defining the specific structures of the clamping portion 34 and the hook 21, the hook 21 and the clamping portion 34 are fixedly clamped. Moreover, the structures of the clamping portion 34 and the hook 21 are simple, the disassembly and assembly are convenient, and the clamping effect is stable, which is conducive to achieving the effect of quickly disassembling and assembling the cutter head 10.

[0095] It can be understood that in other embodiments, the clamping strip 342 of the clamping portion 34 can be omitted. Correspondingly, a magnetic element can be provided on the groove 341. Correspondingly, the barb 213 of the hook 21 can be omitted. Correspondingly, another magnetic element can be provided on the extension portion 212. The hook 21 and the clamping portion 34 are attracted together by magnetic force. Thus, the fixed clamping of the hook 21 and the clamping portion 34 can still be achieved.

[0096] It can be understood that in other embodiments, the clamping strip 342 of the clamping portion 34 can be omitted. Correspondingly, a hole-like structure that can be inserted can be provided on the groove 341. Correspondingly, the barb 213 of the hook 21 can be omitted. Correspondingly, an insertion member can be provided on the extension portion 212. The hook 21 and the clamping portion 34 are clamped together by inserting the insertion member into the hole-like structure. Thus, the fixed clamping of the hook 21 and the clamping portion 34 can still be achieved.

[0097] It can be understood that in other embodiments, the clamping portion 34 and the hook 21 can also be clamped together by other connection methods, and the embodiments of the present application do not make specific limitations on this.

[0098] In order to fixedly connect the cutter head 10 and the connecting seat 30, in this embodiment, the cutter head 10 further includes an installation portion 12. The installation portion 12 protrudes from the connecting surface 111. The installation portion 12 is adjacent to the first knob hole 113. The assembly surface 31 is provided with a connecting portion 35 adapted to be connected to the installation portion 12. The cutter head 10 and the connecting seat 30 are connected through the cooperation of the installation portion 12 and the connecting portion 35. Among them, the installation portion 12 is generally located at the central position of the connecting surface 111, and the connecting portion 35 is generally located at the central position of the assembly surface 31. The connection method between the installation portion 12 and the connecting portion 35 can be, for example, a plug-in fit connection, a snap-fit connection, or other fixed connection methods. Thus, by providing the above-mentioned installation portion 12 and connecting portion 35, the fixed connection between the cutter head 10 and the connecting seat 30 is achieved, so that the connecting seat 30 can drive the cutter head 10 to rotate stably under the drive of the external driver 200 for cutting operations.

[0099] In order to reduce the thickness of the cutter head assembly 100 and simplify the connection mode between the cutter head 10 and the connection seat 30, in this embodiment, the cutter head 10 is provided with an insertion hole 13 that penetrates through the cutting surface 112, the connection surface 111 and the installation part 12. The insertion hole 13 is adapted to the connection part 35, and the assembly surface 31 is provided with an annular groove 311 surrounding the connection part 35. The connection part 35 is adapted to be inserted into the insertion hole 13, and the installation part 12 is adapted to be inserted into the annular groove 311. Among them, the connection part 35 is generally rectangular, the insertion hole 13 is generally a rectangular hole, and the installation part 12 is generally cylindrical. In this way, by providing the above-mentioned insertion hole 13 and annular groove 311, when the cutter head 10 is connected to the connection seat 30, the connection part 35 is adapted to be inserted into the insertion hole 13 of the installation part 12, and the installation part 12 is adapted to be inserted into the annular groove 311, so that the cutter head 10 and the connection seat 30 are inserted into each other, thereby reducing the thickness of the cutter head assembly 100, and the connection mode between the cutter head 10 and the connection seat 30 is simple.

[0100] It can be understood that in other embodiments, the shapes of the connection part 35 and the installation part 12 can also be other shapes. For example, the connection part 35 can also be a triangle, a pentagon, an ellipse, etc. For example, the installation part 12 can also be a triangle, a pentagon, an ellipse, etc. Correspondingly, the shapes of the insertion hole 13 and the annular groove 311 are adaptively changed, and the embodiments of the present application do not make specific limitations on this.

[0101] In order to ensure the connection stability between the connection seat 30 and the external driver 200, in this embodiment, the clamping surface 32 is convexly provided with an assembly part 36. The assembly part 36 is arranged opposite to the connection part 35. The assembly part 36 is provided with an assembly hole 361, and the assembly hole 361 is adapted to the external driver 200, for example, it is a circular rectangular hole. In this way, when the connection seat 30 is connected to the external driver 200, the connection seat 30 is adaptively inserted into the external driver 200 through the assembly hole 361, so that the connection seat 30 can be firmly connected to the external driver 200, ensuring the connection stability between the connection seat 30 and the external driver 200.

[0102] In order to further ensure the connection stability among the connection seat 30, the external driver 200 and the cutter head 10, in this embodiment, the connection part 35 is further provided with a connection hole 351. The connection hole 351 is communicated with the assembly hole 361. The connection hole 351 can be a stepped hole. During actual assembly, when the connection seat 30 and the external driver 200 are assembled, the cutter head 10, the connection seat 30 and the external driver 200 can be fixedly connected by screwing a screw through the connection hole 351 and threadedly connecting it to the external driver 200. In this way, by providing the above-mentioned connection part 35, the connection stability among the connection seat 30, the external driver 200 and the cutter head 10 is further ensured.

[0103] In order to ensure the connection accuracy between the cutter head 10 and the connecting seat 30, in this embodiment, the cutter head 10 further includes a positioning post 14. The positioning post 14 is arranged on the connecting surface 111 and is spaced from the first knob hole 113. A positioning hole 312 adapted to the positioning post 14 is formed on the mating surface 31. The cutter head 10 and the connecting seat 30 are positioned and connected by fitting the positioning post 14 into the positioning hole 312. The positioning hole 312 can be a blind hole or a through hole. Wherein, the number of both the positioning post 14 and the positioning hole 312 can be four. In this way, by providing the above-mentioned positioning post 14 and positioning hole 312, the cutter head 10 and the connecting seat 30 are positioned and connected, ensuring the connection accuracy between the cutter head 10 and the connecting seat 30.

[0104] It can be understood that in other embodiments, the number of both the positioning post 14 and the positioning hole 312 can also be more or fewer, such as one, two, three, five, six, etc. The embodiments of the present application do not make specific limitations in this regard.

[0105] In order to ensure the stable clamping between the hook 21 of the rotating member 20 and the clamping portion 34 of the connecting seat 30, in this embodiment, the cutter head assembly 100 further includes an elastic unit 50. The elastic unit 50 is arranged between the cutter head 10 and the rotating member 20, and the elastic unit 50 elastically abuts against the rotating member 20, that is, the elastic unit 50 is used to elastically abut against the rotating member 20 and apply an elastic force away from the connecting seat 30 to the rotating member 20, so that the hook 21 of the rotating member 20 can be stably clamped with the clamping portion 34 of the connecting seat 30. In this way, when the hook 21 of the rotating member 20 is clamped with the clamping portion 34 of the connecting seat 30, the elastic unit 50 elastically abuts against the rotating member 20, so that the hook 21 of the rotating member 20 can be stably clamped on the clamping portion 34 to ensure the fixed connection between the cutter head 10 and the connecting seat 30.

[0106] In this embodiment, the elastic unit 50 includes a contact member 51, a first elastic arm 52 and a second elastic arm 53. One end of the contact member 51 is located in the insertion hole 13, and the other end of the contact member 51 protrudes from the cutting surface 112 for contacting the rotating member 20. Both the first elastic arm 52 and the second elastic arm 53 are generally curved. One end of the first elastic arm 52 is connected to the contact member 51, and the other end of the first elastic arm 52 is connected to the hole wall of the insertion hole 13. One end of the second elastic arm 53 is connected to the contact member 51, and the other end of the second elastic arm 53 is connected to the hole wall of the insertion hole 13. The first elastic arm 52 and the second elastic arm 53 are symmetrically arranged about the center of the contact member 51. Wherein, both the first elastic arm 52 and the second elastic arm 53 can be elastically deformed and have elasticity. Thus, by setting the specific structure of the elastic unit 50 as described above, when the hook 21 of the rotating member 20 is engaged with the engaging portion 34 of the connecting seat 30, the contact member 51 is pressed by the rotating member 20 to drive the first elastic arm 52 and the second elastic arm 53 to bend and deform. The first elastic arm 52 and the second elastic arm 53 are elastically deformed to generate elastic force, so that the contact member 51 elastically contacts the rotating member 20 under the elastic support of the first elastic arm 52 and the second elastic arm 53, to ensure the fixed connection between the cutter head 10 and the connecting seat 30, and to ensure the stable engagement between the hook 21 of the rotating member 20 and the engaging portion 34 of the connecting seat 30. When it is necessary to disassemble the cutter head 10, by pressing the rotating member 20, the rotating member 20 presses the contact member 51, and the contact member 51 drives the first elastic arm 52 and the second elastic arm 53 to elastically deform. Since the first elastic arm 52 and the second elastic arm 53 can undergo elastic deformation, the rotating member 20 can move towards the cutter head 10, so that the hook 21 and the engaging portion 34 can be disengaged. Then, by reversely rotating the rotating member 20, the hook 21 and the engaging portion 34 are misaligned and separated, so as to facilitate the removal of the rotating member 20, and thus the cutter head 10 can be disassembled from the connecting seat 30.

[0107] In order to enable the rotating member 20 to be adaptively clamped with the cutter head 10, in this embodiment, the cutter head 10 further includes an assembly portion 15. The assembly portion 15 can protrude from the cutting surface 112 or be embedded in the cutting surface 112, and the assembly portion 15 can be cylindrical. Among them, the insertion hole 13 also penetrates through the assembly portion 15, and the other end of the abutting member 51 of the elastic unit 50 protrudes from the assembly portion 15. On the side of the rotating member 20 facing the cutter head 10, a receiving groove 22 is formed. Two concave arc portions 23 are symmetrically arranged in the receiving groove 22, and two convex arc portions 24 are also symmetrically arranged in the receiving groove 22. The two concave arc portions 23 and the two convex arc portions 24 are arranged at intervals in the receiving groove 22. Among them, two hooks 21 are respectively arranged on the two concave arc portions 23. When the rotating member 20 is assembled with the cutter head 10, the two concave arc portions 23 and the two convex arc portions 24 are both in contact with the assembly portion 15, so that the rotating member 20 can be adaptively clamped with the assembly portion 15. Since the two concave arc portions 23 and the two convex arc portions 24 are in contact with the assembly portion 15, the contact area between the rotating member 20 and the assembly portion 15 is reduced, which is beneficial to reducing the friction force between the rotating member 20 and the assembly portion 15, making the rotation of the rotating member 20 smooth and labor-saving. It can be understood that a groove structure can also be formed on the cutting surface 11 for adaptively accommodating the rotating member 20.

[0108] In order to facilitate applying an external force to the rotating member 20 to make the rotating member 20 rotate, in this embodiment, a force-receiving portion 25 is provided on the side of the rotating member 20 facing away from the cutter head 10. The force-receiving portion 25 is used to bear the external force to make the rotating member 20 rotate. Among them, the force-receiving portion 25 is formed by a groove structure recessed on the side of the rotating member 20 facing away from the cutter head 10, and the number of the force-receiving portions 25 is two, and the two force-receiving portions 25 are symmetrically arranged. In this way, by providing the above-mentioned force-receiving portion 25, it is convenient to make the rotating member 20 receive the external force and apply an external force to the rotating member 20 to make the rotating member 20 rotate.

[0109] It can be understood that in other embodiments, the force-receiving portion 25 can also be a convex structure provided on the side of the rotating member 20 facing away from the cutter head 10, and the embodiments of the present application do not make specific limitations on this.

[0110] In order to facilitate inserting the hook 21 into the first knob hole 113 and the second knob hole 33, in this embodiment, an indicating portion 26 is provided on the side of the rotating member 20 facing away from the cutter head 10. The indicating portion 26 and the hook 21 are arranged on opposite sides of the rotating member 20. Among them, the number of the indicating portions 26 is equal to and corresponds to the number of the hooks 21 one by one. The indicating portion 26 can be a triangular pattern, a circular pattern, an arrow pattern, etc., and the embodiments of the present application do not make specific limitations on this. In this way, by providing the above-mentioned indicating portion 26, it is convenient to observe the position of the hook 21, which is beneficial to inserting the hook 21 of the rotating member 20 into the corresponding first knob hole 113 and the second knob hole 33, and facilitating the assembly of the cutter head 10, the rotating member 20 and the connecting seat 30.

[0111] In the cutter head assembly 100 according to the embodiment of the present application, through the cooperation of the cutter head 10, the rotating member 20 and the connecting seat 30, by rotating and reversely rotating the rotating member 20, the assembly and disassembly of the cutter head 10 can be realized. The disassembly and assembly of the cutter head 10 are convenient, so as to achieve the effect of quickly disassembling and assembling the cutter head 10. Further, through the cooperation of the elastic unit 50, the stable clamping of the hook 21 of the rotating member 20 and the clamping portion 34 of the connecting seat 30 is ensured, and the stability of the cutter head assembly 100 is improved.

[0112] The embodiment of the present application further provides a self - moving device (not shown in the figure). The self - moving device can be a lawn mowing robot, a floor cleaning robot, etc. The self - moving device includes a main body (not shown in the figure), a driver 200 (please refer to Figure 1 and Figure 2 ) and the cutter head assembly 100 as described in the above technical solution. The main body can be a vehicle body. The driver 200 is arranged on the main body. The driver 200 can be a motor. The connecting seat 30 of the cutter head assembly 100 is connected to the driver 200, and the clamping surface 32 of the connecting seat 30 faces the driver 200.

[0113] In the self - moving device according to the embodiment of the present application, through the cooperation of the cutter head 10, the rotating member 20 and the connecting seat 30 of the cutter head assembly 100, by rotating and reversely rotating the rotating member 20, the assembly and disassembly of the cutter head 10 can be realized. The disassembly and assembly of the cutter head 10 are convenient, so as to achieve the effect of quickly disassembling and assembling the cutter head 10. Further, through the cooperation of the elastic unit 50 of the cutter head assembly 100, the stable clamping of the hook 21 of the rotating member 20 and the clamping portion 34 of the connecting seat 30 is ensured, and the stability of the cutter head assembly 100 is improved.

[0114] For those skilled in the art, it is obvious that the present application is not limited to the details of the above - mentioned exemplary embodiments, and without departing from the spirit or basic characteristics of the present application, the present application can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non - restrictive. The scope of the present application is defined by the appended claims rather than the above description. Therefore, it is intended to cover all changes falling within the meaning and scope of the equivalent elements of the claims in the present application.

[0115] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and not to limit them. Although the present application has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A cutter head assembly, characterized in that, It includes a cutter head, a rotating member and a connecting seat; The cutter head includes a body which has opposite connecting surfaces and a cutting surface, and the body is provided with a first knob hole penetrating through the connecting surface and the cutting surface; The rotating member is arranged on the cutting surface, and a hook is convexly provided on one side of the rotating member facing the body, and the hook is used to pass through the first knob hole; The connecting seat is arranged on the connecting surface, and the connecting seat has opposite assembling surfaces and a clamping surface. The assembling surface faces the connecting surface, and the clamping surface is used to connect with an external driver. The connecting seat is provided with a second knob hole penetrating through the assembling surface and the clamping surface. A clamping portion adjacent to the second knob hole is provided on the clamping surface, and the clamping portion is adapted to the hook; wherein, The hook of the rotating member is sequentially inserted into the first knob hole and the second knob hole, and the hook is clamped with the clamping portion by rotating the rotating member.

2. The cutter head assembly according to claim 1, characterized in that, The clamping portion includes a groove recessed from the clamping surface towards the assembling surface and spaced from the second knob hole and a clamping bar arranged between the groove and the second knob hole. The hook includes a protruding portion convexly provided on the rotating member, an extending portion connected to the protruding portion, and a barb arranged on the extending portion. The barb and the protruding portion are located on the same side of the extending portion, and the hook is clamped with the clamping portion through the cooperation of the barb with the clamping bar and the groove.

3. The cutter head assembly according to claim 1, characterized in that, The cutter head further includes a mounting portion convexly provided on the connecting surface. The mounting portion is adjacent to the first knob hole. A connecting portion adapted to be connected with the mounting portion is provided on the assembling surface. The cutter head and the connecting seat are connected through the cooperation of the mounting portion and the connecting portion.

4. The cutter head assembly according to claim 3, wherein The cutter head is provided with an insertion hole penetrating through the cutting surface, the connecting surface and the mounting portion. The assembling surface is provided with an annular groove surrounding the connecting portion. The connecting portion is adapted to be inserted into the insertion hole, and the mounting portion is adapted to be inserted into the annular groove.

5. The cutter head assembly according to claim 4, wherein The cutter head assembly further includes an elastic unit which is arranged between the cutter head and the rotating member, and the elastic unit elastically abuts against the rotating member.

6. The cutter head assembly according to claim 5, wherein, The elastic unit includes an abutting member, a first elastic arm and a second elastic arm. One end of the abutting member is located in the insertion hole, and the other end of the abutting member protrudes from the cutting surface to abut against the rotating member. One end of the first elastic arm is connected to the abutting member, and the other end of the first elastic arm is connected to the hole wall of the insertion hole. One end of the second elastic arm is connected to the abutting member, and the other end of the second elastic arm is connected to the hole wall of the insertion hole. The first elastic arm and the second elastic arm can be elastically deformed.

7. The cutter head assembly according to claim 1, wherein The cutter head further includes a positioning post which is arranged on the connecting surface and spaced from the first knob hole. A positioning hole adapted to the positioning post is provided on the assembling surface. The cutter head and the connecting seat are positioned and connected by the positioning post being adapted to be inserted into the positioning hole.

8. The cutter head assembly according to claim 1, wherein, On one side of the rotating member facing away from the cutter head, an indicating portion is provided, and the indicating portion and the hook are correspondingly arranged on opposite sides of the rotating member; and / or, on one side of the rotating member facing away from the cutter head, a force-receiving portion is provided, and the force-receiving portion is used to receive an external force to rotate the rotating member.

9. The cutter head assembly according to claim 1, wherein The cutter head assembly further includes a plurality of blades, and the plurality of blades are arranged at intervals in the circumferential direction of the cutting surface or the circumferential direction of the connecting surface.

10. A self - moving device, characterized in that, It includes a main body, a driver, and the cutter head assembly according to any one of claims 1 to 9. The driver is arranged on the main body, the connecting seat of the cutter head assembly is connected to the driver, and the clamping surface of the connecting seat faces the driver.

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