Cutter head module and hair cutting device

Abstract

The embodiment of the utility model discloses a tool bit module and a hair cutting device.The tool bit module comprises a tool bit assembly and a tool apron, the tool bit assembly comprises at least two tool bits, each tool bit comprises a mounting support and a cutting unit mounted on the mounting support, and a first limiting convex part is arranged on the mounting support; the tool apron comprises a fixed seat and a limiting frame which are fixedly connected, and each tool bit can be limited and mounted on the fixed seat in a floating manner along a preset direction; the limiting frame surrounds the peripheries of the multiple tool bits. The limiting frame is provided with a first limiting part located on the side, facing the tool bit, of the fixing base, and the first limiting part and the fixing base are arranged in a spaced mode in the preset direction. The first limiting convex part is arranged between the first limiting part and the fixed seat, and when the tool bit is in a floating state, the first limiting convex part abuts against the first limiting part. According to the tool bit module, after the tool bit shell is detached, all the tool bits are not prone to scattering, and recovery assembly and cleaning are convenient.

Description

Technical Field

[0001] The present application relates to the technical field of hair cutting devices, and in particular to a cutter head module and a hair cutting device. Background Art

[0002] Hair cutting devices are used to trim beards, hair, etc., and a common hair cutting device is a razor. To improve hair trimming efficiency, some current hair cutting devices utilize a multi-head cutter module. As the cutter module ages, the cut beards, hair, etc. accumulate inside the module, affecting its proper function. To thoroughly clean the cutter module, users typically disassemble it for cleaning. However, with current cutter modules, the individual heads tend to scatter after the cutter housing is disassembled, making reassembly and cleaning inconvenient.

[0003] The above content is only used to assist in understanding the technical solution of the utility model and does not constitute an admission that the above content is prior art. Utility Model Content

[0004] In view of the above problems, the present invention proposes a cutter head module, which aims to solve the problem that the cutter heads are easily scattered after the cutter head shell is disassembled, making it inconvenient to restore, assemble and clean them.

[0005] To achieve the above-mentioned purpose, the cutter head module proposed in the present invention includes a cutter head assembly and a cutter seat;

[0006] The cutter head assembly includes at least two cutter heads, each of which includes a mounting bracket and a cutting unit mounted on the mounting bracket, and the mounting bracket is provided with a first limiting protrusion;

[0007] The tool holder includes a fixedly connected fixing seat and a limiting frame, and each of the tool heads can be mounted on the fixing seat in a floating manner along a preset direction; the limiting frame surrounds the outer circumference of the multiple tool heads; the limiting frame has a first limiting portion, the first limiting portion is located on the side of the fixing seat facing the tool head, and is spaced apart from the fixing seat in the preset direction; the first limiting protrusion is provided between the first limiting portion and the fixing seat, and when the tool head is in a floating state, the first limiting protrusion abuts against the first limiting portion.

[0008] In one embodiment, the limiting frame also includes a connecting portion, which is adjacent to the fixing seat and fixedly connected to the fixing seat, the first limiting portion is connected to a side of the connecting portion away from the fixing seat so as to be spaced apart from the fixing seat, the first limiting portion forms a first limiting surface toward a side of the fixing seat, the fixing seat has a second limiting surface, and the first limiting protrusion is arranged between the first limiting surface and the second limiting surface.

[0009] In one embodiment, there are multiple connecting parts and multiple first limiting parts, two adjacent first limiting parts are connected by a connecting part, and multiple first limiting parts and multiple connecting parts are sequentially connected end to end to form a ring structure.

[0010] In one embodiment, the limiting frame is provided with at least one first limiting portion on both sides in the first direction, and the plurality of cutting heads are provided with at least one first limiting protrusion on both sides in the first direction; and / or, the limiting frame is provided with at least one first limiting portion on both sides in the second direction, and the plurality of cutting heads are provided with at least one first limiting protrusion on both sides in the second direction; the first direction, the second direction, and the preset direction intersect with each other.

[0011] In one embodiment, the mounting bracket includes two side panels extending along the first direction and two decorative end covers fixedly connected to the two ends of the two side panels, and the two side panels are arranged opposite to each other in the second direction; a first limiting protrusion is provided on the side panel and / or the decorative end cover; and the limiting frame is provided with a first limiting portion corresponding to the first limiting protrusion on the side panel and the decorative end cover.

[0012] In one embodiment, each of the cutting heads extends in the first direction in a strip shape, and a plurality of the cutting heads are arranged side by side in the second direction. A first position-limiting protrusion is provided on the decorative end cap of the cutting head located in the middle in the second direction, and first position-limiting protrusions are provided on the outer side panels of the cutting heads located on both sides in the second direction.

[0013] The first limiting portion corresponding to the decorative end cover extends in the second direction to the decorative end covers corresponding to the plurality of tool heads.

[0014] In one embodiment, an intermediate frame connected to the fixed seat is provided between two adjacent cutting heads, and the intermediate frame has a second limiting portion, which is spaced apart from the fixed seat in a preset direction, and at least one cutting head adjacent to the intermediate frame is provided with a second limiting protrusion, which can abut against the second limiting portion.

[0015] In one embodiment, the cutter head assembly includes an intermediate cutter head and side cutter heads arranged on both sides of the intermediate cutter head in the second direction; two second limiting portions are provided and are opposite and spaced apart in the second direction, the intermediate cutter head is provided between the two second limiting portions, and at least one second limiting protrusion is provided on one side of the two side cutter heads adjacent to the intermediate frame.

[0016] In one embodiment, the second limiting portion extends away from the fixing seat and is configured in a plate shape to separate the middle blade head and the side blade heads.

[0017] In one embodiment, a magnet mounting groove is formed on the fixing seat, and the intermediate frame further includes a pressing plate connecting the two second limiting portions, the pressing plate is pressed onto the fixing seat and covers at least a portion of the magnet mounting groove.

[0018] In one embodiment, a buffer sleeve is sleeved on the first limiting protrusion, and the first limiting protrusion abuts against the first limiting portion or the fixing seat through the buffer sleeve.

[0019] In one embodiment, the fixing seat is detachably fixedly connected to the limiting frame.

[0020] In one embodiment, the cutter head module further includes a cutter head shell, the cutter seat is detachably fixedly installed in the cutter head shell, and at least a portion of the cutting unit is exposed outside the cutter head shell.

[0021] The present invention further provides a hair cutting device, comprising a main unit and a cutter head module as described in any one of the above embodiments, wherein the main unit is connected to the cutter head module.

[0022] The cutter head module of the present invention is configured such that the cutter head includes a detachably connected fixing seat and a limiting frame, so that the limiting frame surrounds the outer periphery of the plurality of cutter heads. The limiting frame has a first limiting portion, which is located on the side of the fixing seat facing the cutter heads and is spaced apart from the fixing seat in a preset direction. That is, the component of the cutter head that is mainly used for limiting and the component that is mainly used for fixing are separated into two components, the limiting frame and the fixing seat, and the relative wall surfaces of the limiting frame and the fixing seat are fully utilized to provide a limiting activity space for the first limiting protrusion of the mounting bracket of each cutter head. In this way, after the cutter head shell is disassembled, each cutter head can be framed by the limiting frame and will not scatter individually, thereby making it more convenient to restore, assemble and clean the cutter head module. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 Shows a structural schematic diagram of an embodiment of the cutter head module of the present utility model;

[0025] Figure 2 for Figure 1 Schematic diagram of the exploded structure of the middle cutter head module;

[0026] Figure 3 This is a schematic diagram of the assembly structure of the tool holder and the intermediate frame of the utility model;

[0027] Figure 4 This is a schematic diagram of the exploded structure of the fixing seat and the limiting frame of the utility model;

[0028] Figure 5 This is a schematic diagram of the assembly structure of the cutter head assembly and the intermediate frame of the utility model;

[0029] Figure 6 This is a structural diagram of another embodiment of the cutter head module of the present utility model;

[0030] Figure 7 for Figure 6 A cross-sectional view of the middle cutter head module at one angle;

[0031] Figure 8 This is a structural diagram of an embodiment of the hair cutting device of the present invention;

[0032] Figure 9 for Figure 8 Schematic diagram of the exploded structure of the cutter head module and the main unit of the hair cutting device.

[0033] Description of Figure Numbers:

[0034] Label name Label name Label name 100 Cutting head module 134 Side panels 155 Connection 110 Cutting head assembly 135 Decorative end caps 156 The first limiting part 120 blade 140 Cutting unit 160 Middle shelf 121 Intermediate blade 150 Knife holder 161 The second limiting part 122 Side cutter head 151 Fixed seat 162 pressure plate 130 Mounting bracket 151a Magnet mounting slot 170 Blade shell 131 first limiting protrusion 152 The second limiting surface 200 Host 132 Second limiting protrusion 153 Limit frame 133 Cushion sleeve 154 The first limiting surface

[0035] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0037] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0038] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text is to include three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that meet both A and B.

[0039] The utility model provides a cutter head module, which is applied to a hair cutting device, and specifically can be used for a shaver.

[0040] In the embodiment of this utility model, please refer to Figures 1 to 5 The cutter head module 100 includes a cutter head assembly 110 and a cutter seat 150; the cutter head assembly 110 includes at least two cutter heads 120, each cutter head 120 includes a mounting bracket 130 and a cutting unit 140 mounted on the mounting bracket 130, and the mounting bracket 130 is provided with a first limiting protrusion 131; the cutter seat 150 includes a fixedly connected fixing seat 151 and a limiting frame 153, each cutter head 120 can be floatingly mounted on the fixing seat 151 along a preset direction; the limiting frame 153 surrounds the outer periphery of the multiple cutter heads 120; the limiting frame 153 has a first limiting portion 156, the first limiting portion 156 is located on the side of the fixing seat 151 facing the cutter head 120, and is spaced apart from the fixing seat 151 in the preset direction; the first limiting protrusion 131 is provided between the first limiting portion 156 and the fixing seat 151, and when the cutter head 120 is in a floating state, the first limiting protrusion 131 abuts against the first limiting portion 156.

[0041] In this embodiment, the number of cutter heads 120 can be selected according to actual needs. For example, two, three, four, etc. cutter heads 120 can be provided. There can also be many types of cutter heads 120. Multiple cutter heads 120 can use the same type of cutter heads 120, or different types of cutter heads 120 can be used. For example, some cutter heads 120 use short-beard cutter heads 120, and some cutter heads 120 use long-beard cutter heads 120. The cutting unit 140 mounted on the mounting bracket 130 includes a stationary knife and a movable knife. Among them, the short-beard cutter head 120 refers to a structure in which the stationary knife is a curved knife net with multiple holes, and the long-beard cutter head 120 refers to a structure in which the stationary knife is a flat knife with multiple shear teeth on both sides. The mounting bracket 130 provides installation for the cutting unit 140. Its structure and form can be many, and can be selected and designed according to the type of the cutting unit 140, and is not specifically limited here. The stationary knife is fixed to the mounting bracket 130, and the movable knife is movably mounted on the mounting bracket 130 through the movable knife holder. The movable knife holder is connected to the output shaft of the host 200, so that the host 200 drives the movable knife to move at high speed relative to the stationary knife to achieve shearing.

[0042] The first limiting protrusion 131 can specifically be a lug provided on the peripheral side wall of the mounting bracket 130. Of course, the first limiting protrusion 131 can also be a protrusion, etc. The number of the first limiting protrusion 131 can be set to one or more, and is not specifically limited here. The fixing seat 151 is used to provide installation and connection for multiple cutter heads 120. For the convenience of explanation, the preset direction is defined as the up and down direction. Each cutter head 120 can be installed on the fixing seat 151 in a floating manner along the preset direction. Specifically, the fixing seat 151 is provided with a plug-in column, and a spring is provided outside the plug-in column, so that the mounting bracket 130 of each cutter head 120 is inserted into the plug-in column, and the two ends of the spring respectively abut the fixing seat 151 and the mounting bracket 130. In this way, the upper and lower elastic floating limiting installation of each cutter head 120 on the fixing seat 151 can be achieved. Each cutter head 120 can be independently mounted on the fixing seat 151 in an elastic floating manner up and down, so that the cutting unit 140 of each cutter head 120 can adapt to fit the human skin to ensure the hair cutting effect.

[0043] In reality, if Figure 6 and Figure 7 As shown, the cutter head module 100 also includes a cutter head shell 170, and the cutter seat 150 is detachably fixedly installed in the cutter head shell 170, and at least a portion of the cutting unit 140 is exposed outside the cutter head shell 170. The cutter head shell 170 is used to connect with the host 200, provide protection for the entire cutter head module 100, and ensure the overall consistency of the appearance of the cutter head module 100. The fixing seat 151 can be detachably fixedly connected to the cutter head shell 170 by screws, clamping, etc. The cutter head shell 170 can provide a pressing surface for the limiting frame 153 to be pressed against the top surface of the limiting frame 153.

[0044] The fixing seat 151 and the limiting frame 153 can be detachably fixedly connected or non-detachably fixedly connected. The limiting frame 153 is arranged in an annular shape as a whole to surround the outer periphery of the multiple cutter heads 120. The materials of the fixing seat 151 and the limiting frame 153 can be the same or different. Specifically, the fixing seat 151 is made of aluminum alloy, plastic, or titanium alloy. The limiting frame 153 can be a sheet metal part made of stainless steel or other materials, so that the limiting frame 15 still has sufficient structural strength at a relatively thin thickness to avoid bending and deformation that affects the movement of the cutter head 120. Furthermore, the limiting frame 153 is an annular structure composed of at least two sections welded end to end. The limiting frame 153 can be specifically formed by welding two half rings end to end, which is more convenient for molding and manufacturing. Specifically, the two half rings can be laser welded end to end.

[0045] The first limiting portion 156 of the limiting frame 153 is located on the side of the fixing base 151 facing the cutter head 120, and is spaced apart from and opposite the fixing base 151 in a predetermined direction. Specifically, the first limiting portion 156 is located above the fixing base 151. When the cutter head is in the floating state, the upper surface of the first limiting protrusion 131 abuts against the first limiting portion 156, and the first limiting protrusion 131 is located above the fixing base 151. In this way, the first limiting portion 156 can limit the upward movement of the cutter head 120 until it disengages the plug-in post on the fixing base 151, and the fixing base 151 can limit the downward displacement of the cutter head 120. Specifically, the lower surface of the first limiting protrusion 131 protrudes from the bottom wall of the mounting bracket 130. In this way, the downward displacement of the mounting bracket 130 is limited by the cooperation between the first limiting protrusion 131 and the fixing base 151, thereby preventing large-scale collisions between the mounting bracket 130 and the fixing base 151, thereby reducing noise and wear.

[0046] It is understandable that since the multiple cutter heads 120 are elastically mounted on the fixing seat 151 in an upward and downward floating manner, if the cutter head housing 170 of the cutter head module 100 is disassembled, the multiple cutter heads 120 are easily scattered, making it inconvenient to clean the entire unit and difficult to restore. The cutter head module 100 of the present invention is configured such that the cutter seat 150 includes a fixedly connected fixing seat 151 and a limiting frame 153, so that the limiting frame 153 surrounds the outer periphery of the multiple cutter heads 120. The limiting frame 153 has a first limiting portion 156. The first limiting portion 156 is located on the side of the fixing seat 151 facing the cutter heads 120 and is spaced apart from the fixing seat 151 in a predetermined direction. The first limiting protrusion 131 is located between the first limiting portion 156 and the fixing seat 151. When the cutter heads 120 are in a floating state, the first limiting protrusion 131 abuts against the first limiting portion 156. The limiting frame 153 surrounds the outer circumference of multiple cutting heads 120, and the first limiting protrusion 131 of the cutting head 120 is arranged between the limiting frame 153 and the fixing seat 151. In this way, after the cutting head shell 170 is disassembled, each cutting head 120 can be framed by the limiting frame 153 and will not scatter individually, thereby making it more convenient to restore, assemble and clean the cutting head module 100.

[0047] Furthermore, if Figure 3 and Figure 4 As shown, the fixing base 151 is detachably fixedly connected to the limiting frame 153. The fixing base 151 and the limiting frame 153 can be detachably fixedly connected by screws, plugging, clamping, etc.

[0048] In this embodiment, the fixing seat 151 and the limiting frame 153 are detachably fixedly connected, that is, the component of the tool holder 150 mainly used for limiting and the component mainly used for fixing are separated into two components: the limiting frame 153 and the fixing seat 151. The opposing walls of the limiting frame 153 and the fixing seat 151 are fully utilized to provide limiting movement space for the first limiting protrusion 131 of the mounting bracket 130 of each tool head 120. During installation, the multiple tool heads 120 are first fixed to the fixing seat 151, and then the limiting frame 153 is connected to the fixing seat 151 to achieve the limiting of the multiple tool heads 120. Compared with the structure in which the limiting and fixing structures of the tool holder 150 are integrally formed, the assembly precision can be reduced, the difficulty of assembling multiple tool heads 120 and the fixing seat 151 is reduced, and the assembly efficiency of the tool head module 100 is improved.

[0049] For details, please refer to Figures 1 to 4 The preset direction is the up and down direction, and the fixing seat 151 is arranged below the multiple mounting brackets 130 and the multiple cutting units 140 at intervals; the limiting frame 153 is installed on the side of the fixing seat 151 facing the cutter head 120.

[0050] In one embodiment, please refer to Figures 1 to 4 The limiting frame 153 also includes a connecting portion 155, which is adjacent to the fixing seat 151 and fixedly connected to the fixing seat 151. The first limiting portion 156 is connected to the side of the connecting portion 155 away from the fixing seat 151 so as to be spaced apart from the fixing seat 151. The first limiting portion 156 forms a first limiting surface 154 on the side facing the fixing seat 151. The fixing seat 151 has a second limiting surface 152. The first limiting protrusion 131 is arranged between the first limiting surface 154 and the second limiting surface 152.

[0051] In this embodiment, the lower surface of the first limiting portion 156 forms a first limiting surface 154, and the upper surface of the fixing seat 151 forms a second limiting surface 152. The first limiting portion 156 is connected to the side of the connecting portion 155 away from the fixing seat 151 so as to be spaced apart from the fixing seat 151. Then, the first limiting portion 156 bulges upward relative to the connecting portion 155, and the first limiting portion 156 and the upper surface of the fixing seat 151 are spaced apart to form a limiting movable space for the first limiting protrusion 131 to move. At the same time, the first limiting portion 156 can protect the peripheral side of the mounting bracket 130 to prevent the multiple cutter heads 120 from being dispersed. Specifically, the connecting portion 155 is provided between the mounting bracket 130 and the fixing seat 151. In this way, the connecting portion 155 can be prevented from scratching and colliding with the mounting bracket 130, thereby reducing the floating resistance and operating noise of the cutter head assembly 110.

[0052] Furthermore, there are multiple connecting parts 155 and multiple first limiting parts 156, two adjacent first limiting parts 156 are connected by one connecting part 155, and multiple first limiting parts 156 and multiple connecting parts 155 are connected end to end in sequence to form a ring structure.

[0053] In this embodiment, the multiple first limiting portions 156 limit the circumferential position of the multiple cutting heads in all directions, thereby improving the protective effect of the entire limiting frame 153 on the multiple cutting heads 120 and further preventing the multiple cutting heads 120 from being dispersed. The multiple first limiting portions 156 and the multiple connecting portions 155 are sequentially connected end to end to form an annular structure. While ensuring the position of the multiple first limiting portions 156, the limiting frame 153 can be connected to the fixing base 151 circumferentially through the multiple connecting portions 155, thereby ensuring the assembly stability of the limiting frame 153 and the fixing base 151.

[0054] Further, please refer again to Figures 1 to 4 The limiting frame 153 is provided with at least one first limiting portion 156 on both sides in the first direction, and the plurality of cutting heads 120 are provided with at least one first limiting protrusion 131 on both sides in the first direction; and / or the limiting frame 153 is provided with at least one first limiting portion 156 on both sides in the second direction, and the plurality of cutting heads 120 are provided with at least one first limiting protrusion 131 on both sides in the second direction; the first direction, the second direction, and the preset direction intersect with each other. Specifically, the first direction, the second direction, and the preset direction can be perpendicular to each other.

[0055] In this embodiment, for ease of explanation, the preset direction is defined as the up-down direction, the first direction is defined as the left-right direction, and the second direction is defined as the front-back direction. Thus, the front and back, left and right sides of the entire cutter head assembly 110 are all located between the fixing seat 151 and the limiting frame 153 at their upper and lower limits. This ensures that the forces acting on the multiple cutter heads 120 are uniform, improves the assembly stability of the multiple cutter heads 120 and the limiting frame 153, and effectively prevents the multiple cutter heads 120 from spreading out.

[0056] Specifically, if Figure 1 、 Figure 2 、 Figure 6 and Figure 7 As shown, the mounting bracket 130 includes two side panels 134 extending along the first direction and two decorative end covers 135 fixedly connected to the two ends of the two side panels 134, and the two side panels 134 are arranged opposite to each other in the second direction; a first limiting protrusion 131 is provided on the side panel 134 and / or the decorative end cover 135; the limiting frame 153 is provided with a first limiting portion 156 corresponding to the first limiting protrusion 131 on the side panel 134 and the decorative end cover 135.

[0057] In this embodiment, first position-limiting protrusions 131 are provided on the outer surfaces of the two opposing side panels 134 to ensure that the cutter head 120 is positioned relative to the position-limiting frame 153 on both sides of the second direction. Furthermore, first position-limiting protrusions 131 are provided on the decorative end cap 135 to ensure that the cutter head 120 is positioned relative to the position-limiting frame 153 on both sides of the first direction. By fully utilizing the side panels 134 and decorative end cap 135 of the cutter head 120 to provide the first position-limiting protrusions 131, the entire cutter head 120 is positioned relative to the front-back and left-right directions, thereby enhancing the effectiveness of preventing the entire cutter head 120 from falling.

[0058] Further, if Figure 1 and Figure 2 As shown, each cutting head 120 extends in a long strip shape along the first direction, and multiple cutting heads 120 are arranged side by side in the second direction. A first limiting protrusion 131 is provided on the decorative end cover 135 of the cutting head 120 located in the middle in the second direction, and a first limiting protrusion is provided on the outer plate 134 of the cutting head 120 located on both sides in the second direction; the first limiting portion 156 corresponding to the decorative end cover 135 extends in the second direction to the decorative end cover arrangement corresponding to the multiple cutting heads 120.

[0059] In this embodiment, each cutter head 120 extends in a long strip along the first direction and can be adapted to a reciprocating linear motor, resulting in higher shearing efficiency. Thus, the first limiting portion 156 corresponding to the decorative end cap 135 can simultaneously protect multiple cutter heads 120, further preventing the multiple cutter heads 120 from dispersing. It is understood that the multiple cutter heads 120 can be linked via the intermediate frame 160 so that the multiple cutter heads 120 can float upward and downward as a whole. By simply providing the first limiting protrusion 131 on the decorative end cap 135 of the intermediate cutter head 121, the entire cutter head assembly 110 can be limited at both ends in the first direction. Preferably, at least one first limiting protrusion 131 is provided at both ends of the side panels of the cutter heads 120 on both sides, ensuring that both ends of the side cutter head 122 in the longitudinal direction are in position with the cutter holder 150, thereby improving the stability of the entire cutter head assembly 110.

[0060] In one embodiment, if Figures 1 to 3 、 Figure 5 and Figure 7 As shown, an intermediate frame 160 connected to the fixed seat 151 is further provided between two adjacent cutting heads 120, and the intermediate frame 160 has a second limiting portion 161, and the second limiting portion 161 is spaced apart from the fixed seat 151 in a preset direction. At least one cutting head 120 adjacent to the intermediate frame 160 is provided with a second limiting protrusion 132, and the second limiting protrusion 131 can abut against the second limiting portion 161.

[0061] In this embodiment, the fixing base 151 and the intermediate frame 160 are fixedly connected by screws, clamping, etc. The intermediate frame 160 has a second limiting portion 161, and the upper wall surface of the second limiting protrusion 132 of the cutting heads 122 on both sides abuts the second limiting portion 161, so that two adjacent cutting heads 120 are connected to each other through the intermediate frame 160 and the second limiting protrusion 132. The multiple cutting heads 120 can float as a whole, thereby reducing the number of first limiting protrusions 131 provided for the multiple cutting heads 120.

[0062] Further, please refer again to Figures 1 to 3 、 Figure 5 The cutter head assembly 110 includes an intermediate cutter head 121 and side cutter heads 122 arranged on both sides of the intermediate cutter head 121 in the second direction; two second limiting portions 161 are provided and are opposite and spaced apart in the second direction, the intermediate cutter head 121 is provided between the two second limiting portions 161, and at least one second limiting protrusion 132 is provided on one side of the cutter heads 122 adjacent to the intermediate frame 160.

[0063] In this embodiment, the middle blade head 121 is specifically a long-hair blade head 120, i.e., the static blade of the middle blade head 121 has open cutting edges on both sides. The side blade heads 122 are short-hair blade heads 120, i.e., the static blades of the side blade heads 122 have a curved blade net structure with multiple holes. Two second limiting portions 161 are provided, spaced apart and opposed in the second direction. At least one second limiting protrusion 132 is provided on the side of the side blade heads 122 adjacent to the middle frame 160. This allows the middle blade head 121 and the side blade heads 122 to be connected via the second limiting protrusion 132, allowing the three blade heads 120 to float upward and downward as a whole. Then, the three cutter heads 120 can realize the limited assembly of the entire cutter head assembly 110 only through the cooperation of the first limiting protrusions 131 at both ends of the middle cutter head 121 and the first limiting protrusions 131 on the periphery of the side cutter head 122 with the limiting frame 153, thereby minimizing the number of first limiting protrusions 131 while ensuring the stable assembly of the cutter head assembly 110.

[0064] Further, if Figure 2 and Figure 3 As shown, the second limiting portion 161 extends away from the fixing seat 151 and is arranged in a plate shape to separate the middle blade head 121 and the side blade head 122 .

[0065] In this way, the two side cutter heads 122 are arranged on both sides of the middle frame 160, and the middle cutter head 121 is clamped between the two second limiting parts 161. The second limiting parts 161 can separate the middle cutter head 121 and the side cutter heads 122, which can effectively prevent the middle cutter head 121 and the two side cutter heads 122 from colliding and interfering with each other when the whole floats, thereby improving the operating stability of the multi-cutter head 120.

[0066] For further information, please refer to Figures 2 to 7The fixing seat 151 is provided with a magnet mounting groove 151a, and the intermediate frame 160 further includes a pressing plate 162 connecting the two second limiting portions 161. The pressing plate 162 is pressed onto the fixing seat 151 and covers at least a portion of the magnet mounting groove 151a.

[0067] In this embodiment, the magnet mounting slot 151a is used to mount a magnet or iron block, allowing the entire cutter head module 100 to be magnetically secured to the electric shaver main unit 200. Furthermore, by providing the intermediate frame 160 with a pressure plate 162, the intermediate frame 160 can cover part or all of the magnet mounting slot 151a via the pressure plate 162, fully utilizing the intermediate frame 160 to press the magnetic block, effectively preventing it from falling out. This eliminates the need for additional pressing structures and simplifies the overall structure of the device.

[0068] In one embodiment, please refer to Figure 1 、 Figure 2 、 Figure 5 and Figure 7 A buffer sleeve 134 is sleeved over the first limiting protrusion 131, and the first limiting protrusion 131 abuts against the first limiting portion 156 or the fixing seat 151 through the buffer sleeve 134. The buffer sleeve 134 can be made of an elastic sound-absorbing material such as rubber, silicone, or foam. The material and thickness of the buffer sleeve 134 can be selected and designed according to actual needs and are not specifically limited here. By sleeved over the first limiting protrusion 131, the collision or scraping noise between the first limiting protrusion 131 and the limiting frame 153 or the fixing seat 151 can be effectively reduced.

[0069] In combination with the above embodiment with the second limiting protrusion 132, a buffer sleeve 134 is further provided on the second limiting protrusion 132, and the second limiting protrusion 132 abuts against the second limiting portion 161 through the buffer sleeve 134. In this way, the collision or scraping noise between the second limiting protrusion 132 and the intermediate frame 160 can be effectively reduced.

[0070] The present invention also provides a hair cutting device, such as Figure 8 and Figure 9As shown, the hair cutting device includes a main unit 200 and a cutter head module 100 that are interconnected. The specific structure of the cutter head module 100 is similar to the above-mentioned embodiments. Since the present hair cutting device utilizes all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought about by the technical solutions of the above-mentioned embodiments, and will not be described in detail here. Specifically, the hair cutting device can be an electric shaver. The main unit 200 provides driving force for the cutter head module 100. The main unit 200 includes a drive unit and a power supply. The output shaft of the drive unit is connected to the multiple movable blades of the cutter head module 100 to drive the movable blades of each cutter head 120 relative to the cutting unit 140 to achieve cutting. There are many possible ways to connect the drive unit to the multiple cutter head modules 100, as well as the blade holders 150 of the cutter head modules 100 and the main unit 200. These can be selected and designed according to actual needs and are not specifically limited here.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A cutter head module, characterized in that: include: A cutter head assembly, comprising at least two cutter heads, each of the cutter heads comprising a mounting bracket and a cutting unit mounted on the mounting bracket, wherein the mounting bracket is provided with a first limiting protrusion; and The tool holder includes a fixedly connected fixing seat and a limiting frame, and each of the tool heads can be mounted on the fixing seat in a floating manner along a preset direction; the limiting frame surrounds the outer circumference of the multiple tool heads; the limiting frame has a first limiting portion, the first limiting portion is located on the side of the fixing seat facing the tool head, and is spaced apart from the fixing seat in the preset direction; the first limiting protrusion is provided between the first limiting portion and the fixing seat, and when the tool head is in a floating state, the first limiting protrusion abuts against the first limiting portion.

2. The cutter head module according to claim 1, wherein: The limiting frame also includes a connecting portion, which is adjacent to the fixing seat and fixedly connected to the fixing seat. The first limiting portion is connected to a side of the connecting portion away from the fixing seat so as to be spaced apart from the fixing seat. The first limiting portion forms a first limiting surface toward a side of the fixing seat. The fixing seat has a second limiting surface. The first limiting protrusion is arranged between the first limiting surface and the second limiting surface.

3. The cutter head module according to claim 2, wherein: There are multiple connecting parts and multiple first limiting parts, two adjacent first limiting parts are connected by a connecting part, and multiple first limiting parts and multiple connecting parts are sequentially connected end to end to form a ring structure.

4. The cutter head module according to claim 3, wherein: The limiting frame is provided with at least one first limiting portion on both sides of the first direction, and the plurality of cutting heads are provided with at least one first limiting protrusion on both sides of the first direction; and / or, the limiting frame is provided with at least one first limiting portion on both sides of the second direction, and the plurality of cutting heads are provided with at least one first limiting protrusion on both sides of the second direction; the first direction, the second direction and the preset direction intersect with each other.

5. The cutter head module according to claim 4, wherein: The mounting bracket includes two side panels extending along the first direction and two decorative end covers fixedly connected to the two ends of the two side panels, and the two side panels are arranged opposite to each other in the second direction; a first limiting protrusion is provided on the side panel and / or the decorative end cover; the limiting frame is provided with a first limiting portion corresponding to the first limiting protrusion on the side panel and the decorative end cover.

6. The cutter head module according to claim 5, wherein: Each of the cutting heads extends in a strip shape along the first direction, and a plurality of the cutting heads are arranged side by side in the second direction. A first position-limiting protrusion is provided on the decorative end cap of the cutting head located in the middle in the second direction, and first position-limiting protrusions are provided on the outer side panels of the cutting heads located on both sides in the second direction. The first limiting portion corresponding to the decorative end cover extends in the second direction to the decorative end covers corresponding to the plurality of tool heads.

7. The cutter head module according to any one of claims 1 to 6, characterized in that: An intermediate frame connected to the fixed seat is also provided between two adjacent cutting heads. The intermediate frame has a second limiting portion, and the second limiting portion is spaced apart from the fixed seat in a preset direction. At least one cutting head adjacent to the intermediate frame is provided with a second limiting protrusion, and the second limiting protrusion can abut against the second limiting portion.

8. The cutter head module according to claim 7, wherein: The cutter head assembly includes an intermediate cutter head and side cutter heads arranged on both sides of the intermediate cutter head in the second direction; two second limiting portions are provided and are arranged opposite and spaced apart in the second direction, the intermediate cutter head is provided between the two second limiting portions, and at least one second limiting protrusion is provided on one side of the two side cutter heads adjacent to the intermediate frame.

9. The cutter head module according to claim 8, wherein: The second limiting portion extends away from the fixing seat and is arranged in a plate shape to separate the middle blade head and the side blade heads.

10. The cutter head module according to claim 9, wherein: The fixing seat is provided with a magnet installation slot, and the intermediate frame further comprises a pressing plate connecting the two second limiting portions, the pressing plate is pressed onto the fixing seat and covers at least a portion of the magnet installation slot.

11. The tool head module according to claim 1, wherein: A buffer sleeve is sleeved on the first limiting protrusion, and the first limiting protrusion abuts against the first limiting portion or the fixing seat through the buffer sleeve.

12. The tool head module according to claim 1, wherein: The fixing seat is detachably fixedly connected to the limiting frame.

13. The tool head module according to claim 1, wherein: The cutter head module further includes a cutter head shell, the cutter seat is detachably fixedly installed in the cutter head shell, and at least a portion of the cutting unit is exposed outside the cutter head shell.

14. A hair cutting device, characterized in that The device comprises a host and a cutter head module according to any one of claims 1 to 13, wherein the host is connected to the cutter head module.

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