Cutter head assembly and hair trimmer
By setting a buffer structure on the periphery of the cutter head assembly of the hair trimmer, the problem of high noise is solved and a more silent shearing effect is achieved.
Patent Information
- Application Number
- CN202422338322.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-24
AI Technical Summary
The existing hair trimmers are noisy when working, mainly due to the direct collision between the cutting head assembly and the limit structure, which produces harsh noise.
A buffer structure is arranged on the circumference of the cutting head assembly. The buffer structure cooperates with the limit structure to limit the maximum distance of the cutting head floating, and absorb and disperse collision energy during the floating process to reduce noise generation.
The noise and vibration of the tool head assembly during the floating process is significantly reduced, and the energy absorption and dispersion of the buffer structure is absorbed and dispersed, thereby reducing the collision intensity and noise level.
Smart Images
Figure CN223173028U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of hair trimming, and particularly relates to a cutter head assembly and a hair trimmer. Background Art
[0002] With the improvement of people's requirements for their own image, various hair trimmers have emerged, such as razors, hair clippers, hair removal trimmers, etc. In the prior art, the hair trimmer drives the cutter head assembly to move to cut beards or hair. The cutter head assembly is set as a floating structure to better fit the body surface contour of the user, and the floating range of the cutter head assembly can be controlled by setting a limiting structure on the housing. However, the housing and the cutter head assembly are usually metal parts. When contacting the limiting structure of the housing, collisions and scratches will occur between the housing and the limiting structure, thus generating harsh noises.
[0003] The above content is only used to assist in understanding the technical solution of the utility model, and does not represent an admission that the above content is the prior art. Summary of the Utility Model
[0004] In view of the above problems, the present utility model provides a cutter head assembly, aiming to solve the technical problem of relatively large noise during the operation of the hair trimmer.
[0005] To achieve the above object, the cutter head assembly provided by the present utility model includes:
[0006] An installation body, including a base and a housing connected to the base. The housing and the base form an installation cavity, and a limiting structure spaced from the base in the longitudinal direction is provided in the installation cavity; and
[0007] A cutter head group, installed in the installation cavity. The cutter head group includes at least one cutter head. The cutter head is longitudinally and movably installed on the base. A buffer structure is provided transversely along the circumference of the cutter head. The buffer structure and the limiting structure are correspondingly arranged in the longitudinal direction, and the buffer structure and the limiting structure are in limit cooperation to limit the cutter head from detaching from the base longitudinally.
[0008] In one embodiment, the buffer structure includes a lug and a buffer sleeve arranged transversely. The lug is fixedly connected to the circumference of the cutter head, the buffer sleeve is sleeved on the lug, and the buffer sleeve abuts against the limiting structure.
[0009] In one embodiment, the cutter head includes a fixed cutter, a movable cutter and a mounting bracket. The fixed cutter is fixedly connected to the mounting bracket. The movable cutter is arranged inside the fixed cutter, and the movable cutter can reciprocate along its length direction to cooperate with the fixed cutter to shear hair. The buffer structure is fixedly connected to the circumference of the mounting bracket. The housing is arranged around the outer circumference of the mounting bracket, and the buffer structure is located between the limiting structure and the base.
[0010] In one embodiment, the mounting bracket includes a strip-shaped frame body and two decorative end caps respectively mounted at two ends of the frame body in its length direction, and the buffer structure is fixedly connected to the peripheral side of the frame body and / or the decorative end caps.
[0011] In one embodiment, a plurality of the buffer structures are provided at intervals along the length direction of the frame body.
[0012] In one embodiment, a limiting groove is formed in the inner wall of the housing, the limiting groove includes a first limiting surface facing the base, the first limiting surface is spaced from the base in the longitudinal direction, the first limiting surface constitutes the limiting structure, the buffer structure is located in the limiting groove, and the buffer structure is in limiting cooperation with the first limiting surface.
[0013] In one embodiment, the mounting body further includes a limiting member, the limiting member is fixedly connected to the base, and the limiting member is disposed around the circumferential outer side of the cutter head group;
[0014] The limiting member has a second limiting surface facing the base, the second limiting surface is spaced from the base in the longitudinal direction, the second limiting surface constitutes the limiting structure, the buffer structure is located between the second limiting surface and the base, and the buffer structure is in limiting cooperation with the second limiting surface.
[0015] In one embodiment, the limiting member includes an abutting portion and a connecting portion fixedly connected to the abutting portion, the connecting portion is fixedly connected to the base, the abutting portion is connected to the side of the connecting portion away from the base, the second limiting surface is disposed on the abutting portion, and an abutting groove is formed by enclosing the abutting portion and the base, and the buffer structure is located in the abutting groove.
[0016] In one embodiment, the cutter head group includes a plurality of cutter heads arranged side by side;
[0017] The mounting body further includes a limiting frame, the limiting frame is fixedly connected to the base, the limiting frame includes at least one limiting wall, any one of the limiting walls is located between two adjacent cutter heads, the limiting wall has a third limiting surface facing the base, the third limiting surface is spaced from the base in the longitudinal direction, the third limiting surface constitutes the limiting structure, and at least one of the two cutter heads on opposite sides of the limiting wall is provided with the buffer structure on the side facing the limiting wall.
[0018] The present invention further provides a hair trimmer, including the cutter head assembly and a driving device as described above, and an output shaft of the driving device is connected to the cutter head assembly.
[0019] The cutter head assembly of the present utility model is provided with a buffer structure transversely along the circumferential side of the cutter head. When the cutter head floats longitudinally, the buffer structure cooperates with the limit structure to limit the maximum floating distance of the cutter head. At the same time, it slows down the direct collision between the metal parts of the cutter head assembly and the limit structure during the floating process, reducing the generation of noise. In the absence of a buffer structure, the cutter head directly collides with the limit structure during floating, generating a large impact force and noise. The presence of the buffer structure is equivalent to adding a buffer pad between the two, avoiding the direct contact of hard impacts, thus significantly reducing the collision noise. The buffer structure is usually made of elastic materials, which have good energy absorption and dispersion capabilities. When the cutter head contacts the limit structure, the buffer structure can absorb and disperse part of the kinetic energy generated by the collision, thereby reducing the energy transmitted to the limit structure and alleviating the intensity of the collision. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0021] Figure 1 Shows a schematic structural diagram of an embodiment of the cutter head assembly of the present utility model;
[0022] Figure 2 Is an exploded view of an embodiment of the cutter head assembly of the present utility model;
[0023] Figure 3 Is another exploded view of an embodiment of the cutter head assembly of the present utility model;
[0024] Figure 4 Is Figure 1 A cross-sectional view of the cutter head assembly shown along P-P;
[0025] Figure 5 Is Figure 4 An enlarged view of part A of the cutter head assembly shown;
[0026] Figure 6 Is a schematic diagram of the buffer structure of an embodiment of the cutter head assembly of the present utility model;
[0027] Figure 7 Is a schematic diagram of the housing of an embodiment of the cutter head assembly of the present utility model;
[0028] Figure 8 Is a schematic structural diagram of another embodiment of the cutter head assembly of the present utility model;
[0029] Figure 9 Is Figure 8Exploded view of the cutter head assembly shown
[0030] Figure 10 is Figure 8 another exploded view of the cutter head assembly shown;
[0031] Figure 11 is Figure 8 a cross-sectional view of the cutter head assembly shown along N-N;
[0032] Figure 12 is Figure 8 a schematic diagram of the position-limiting member of the cutter head assembly shown.
[0033] Explanation of the reference numerals in the drawings:
[0034]
[0035]
[0036] The realization, functional features and advantages of the purpose of the present utility model will be further described in conjunction with the embodiments and with reference to the accompanying drawings. Detailed implementation manners
[0037] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of the technical solutions appears to be contradictory or unable to be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0038] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, then the directional indications are only used to explain the relative positional relationship and movement conditions between the components in a certain specific posture. If the specific posture changes, then the directional indications will also change accordingly.
[0039] In addition, if the embodiments of the present utility model involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or the solution where both A and B are satisfied simultaneously.
[0040] The present utility model provides a cutter head assembly 100 for a hair trimmer.
[0041] In the embodiments of the present utility model, please refer to Figures 1 to 7 , the cutter head assembly 100 includes a mounting body 110 and a cutter head group 120. The mounting body 110 includes a base 111 and a housing 112 connected to the base 111. The housing 112 and the base 111 form a mounting cavity 130. A limiting structure 114 spaced from the base 111 in the longitudinal direction is provided in the mounting cavity 130. The cutter head group 120 is mounted in the mounting cavity 130. The cutter head group 120 includes at least one cutter head 122. The cutter head 122 is mounted on the base 111 in a longitudinally floating manner. A buffer structure 121 is provided in the lateral direction along the circumferential side of the cutter head 122. The buffer structure 121 and the limiting structure 114 are correspondingly arranged in the longitudinal direction, and the buffer structure 121 and the limiting structure 114 are in limiting cooperation to limit the cutter head 122 from detaching from the base 111 in the longitudinal direction.
[0042] In this embodiment, the base 111 serves as a support structure for the cutter head group 120, providing a stable mounting platform. The base 111 is usually made of metal or hard plastic materials to ensure its stability and durability. The housing 112 is a ring-shaped structure. The housing 112 and the base 111 form a mounting cavity 130. The cutter head group 120 is mounted in the mounting cavity 130. In other words, the housing 112 is sleeved on the cutter head group 120 to protect the internal structure, and a limiting structure 114 spaced from the base 111 is provided in the mounting cavity 130 to control the floating range of the cutter head 122. The housing 112 is generally made of wear-resistant plastic or metal materials, ensuring both structural strength and good appearance. The housing 112 can partially cover the structure of the cutter head group 120, covering one end of the cutter head group 120 close to the buffer structure 121, and exposing the part of the cutter head group 120 for shearing hair.
[0043] The floating mounting manner of the cutter head 122 can be achieved by setting an elastic structure between the base 111 and the cutter head 122 or between the housing 112 and the cutter head 122, or can be achieved by other means, which is not limited herein.
[0044] The buffer structure 121 can be made of materials with elasticity and shock-absorbing properties, such as rubber, silicone, and foam, which can effectively absorb the energy generated by the collision. It can also be made of plastic materials with shock-absorbing properties, such as TPE (thermoplastic elastomer) and EVA (ethylene-vinyl acetate). Among them, the implementation methods of arranging the buffer structure 121 along the lateral side of the cutter head 122 can be: arranging buffer pads on both sides or all around the cutter head 122, when the cutter head 122 floats to the limiting structure 114, the buffer pads first contact the limiting structure 114 to play a buffering role; arranging a small spring between the cutter head 122 and the mounting body 110, when the cutter head assembly 120 is floated by external force, the spring provides a reaction force to avoid direct collision; or covering the surface of the cutter head assembly 120 in contact with the limiting structure 114 with a thin layer of buffer material, which is convenient for replacement and ensures the buffering effect.
[0045] When the cutter head 122 floats in the longitudinal direction, the buffer structure 121 cooperates with the limiting structure 114 to limit the maximum distance that the cutter head 122 floats, while slowing down the direct collision between the metal parts of the cutter head assembly 100 and the limiting structure 114 during the floating process, thereby reducing the generation of noise. In the absence of the buffer structure 121, there is a direct collision between the cutter head 122 and the limiting structure 114, which generates a large impact force and noise. The existence of the buffer structure 121 is equivalent to adding a layer of cushion between the two, avoiding direct contact of hard collisions, thereby significantly reducing the collision noise. The buffer structure 121 is usually made of elastic materials, which have good energy absorption and dispersion capabilities. When the cutter head 122 contacts the limiting structure 114, the buffer structure 121 can absorb and disperse part of the kinetic energy generated by the collision, thereby reducing the energy transferred to the limiting structure 114 and reducing the intensity of the collision.
[0046] Specifically, in the embodiments of the present invention, referring to Figure 6 The buffer structure 121 includes a lug 1211 and a buffer sleeve 1212 arranged in the transverse direction. The lug 1211 is fixedly connected to the peripheral side of the cutter head 122, and the buffer sleeve 1212 is sleeved on the lug 1211. The buffer sleeve 1212 abuts against the limiting structure 114. Among them, the lug 1211 is a metal structure, and the buffer sleeve 1212 can be made of rubber, silicone, foam and other materials with elasticity and shock absorption properties, which can effectively absorb the energy generated by the collision. The buffer sleeve 1212 is fixed on the lug 1211 to ensure that when the cutter head 122 floats, the buffer sleeve 1212 can effectively absorb and disperse the collision energy, reduce noise and vibration, and at the same time, when the buffer sleeve 1212 is worn, the buffer sleeve 1212 can be replaced in time to ensure the buffering effect.
[0047] In one embodiment, reference Figure 2 and Figure 3, the cutter head 122 includes a fixed cutter 1221, a moving cutter 1222 and a mounting bracket 1225. The fixed cutter 1221 is fixedly connected to the mounting bracket 1225. The moving cutter 1222 is arranged inside the fixed cutter 1221 and can reciprocate along its length direction to cooperate with the fixed cutter 1221 to cut hair. A buffer structure 121 is fixedly connected to the peripheral side of the mounting bracket 1225. The outer shell 112 is arranged around the outer periphery of the mounting bracket 1225. The buffer structure 121 is located between the limiting structure 114 and the base 111.
[0048] Among them, the cutter head 122 is arranged in a long strip shape with a long cutting edge to cover a larger trimming area. The cutter head 122 is usually made of high-hardness metal, stainless steel or alloy material to ensure durability and sharpness. Both opposite sides of the fixed cutter 1221 are fixedly connected to the mounting bracket 1225. The buffer structure 121 is connected to the peripheral side of the mounting bracket 1225 and can disperse the force when the cutter head 122 floats, providing a uniform buffering effect and effectively reducing the generation of noise and vibration. The outer shell 112 is arranged around the outer periphery of the mounting bracket 1225. The buffer structure 121 is located between the limiting structure 114 and the base 111 to control the floating range of the cutter head 122. At the same time, it protects the cutter head group 120 from being collided by external forces.
[0049] Specifically, the mounting bracket 1225 includes a strip-shaped frame body 1226 and two decorative end caps 1227 respectively installed at both ends of the frame body 1226 in its length direction. The buffer structure 121 is fixedly connected to the peripheral side of the frame body 1226 and / or the decorative end caps 1227.
[0050] Among them, the mounting bracket of each cutter head 122 includes a frame body 1226 and two decorative end caps. When the buffer structure 121 is fixedly connected to the peripheral sides of both the frame body and the decorative end caps, the buffer structure 121 is provided on both opposite sides of the cutter head group 120 in its length direction and width direction, playing a role of balancing the force. At the same time, these buffer structures 121 correspond to the limiting structure 114 of the installation cavity 130, providing a multi-directional limiting effect and reducing the generation of noise.
[0051] Furthermore, a plurality of buffer structures 121 are arranged at intervals along the length direction of the frame body 1226. The plurality of buffer structures 121 arranged at intervals can disperse the force when the cutter head 122 floats, providing a uniform buffering effect and further reducing noise.
[0052] In some embodiments, the limiting structure 114 is generally set as a protrusion or a groove, which is used to limit the floating range of the cutter head assembly 100. For example, a plurality of protrusions are provided on the mounting body 110, and these protrusions contact the buffer structure 121 on the cutter head group 120 to limit the floating of the cutter head group 120; or a plurality of grooves are provided on the mounting body 110, and the lug 1211 part of the cutter head group 120 slides to the bottom of the groove and is limited, and the buffer sleeve 1212 is cooperated to achieve a buffering effect. During the floating process of the cutter head group 120, the buffer sleeve 1212 on the lug 1211 will contact the limiting structure 114. When the buffer sleeve 1212 is under pressure, it deforms, absorbs the energy generated by the collision, and disperses the force, reducing vibration and noise.
[0053] Specifically, in one embodiment, a limiting groove 1121 is formed on the inner wall of the housing 112. The limiting groove 1121 includes a first limiting surface 1122 facing the base 111. The first limiting surface 1122 is spaced from the base 111 in the longitudinal direction. The first limiting surface 1122 constitutes the limiting structure 114. The buffer structure 121 is located in the limiting groove 1121, and the buffer structure 121 is in limiting cooperation with the first limiting surface 1122. Among them, the limiting groove 1121 is formed on the inner wall of the housing 112 and corresponds to the buffer structure 121 on the cutter head 122 to limit the floating range of the cutter head group 120. The limiting groove 1121 includes a first limiting surface 1122 facing the base 111, which is used to cooperate with the buffer structure 121 to limit the floating range of the cutter head group 120. The shape of the limiting groove 1121 can be a long and narrow groove, and its depth and width are set to accommodate the buffer sleeve 1212 and allow it to float freely for a certain distance. When the cutter head 122 floats longitudinally, the buffer sleeve 1212 on the lug 1211 will move in the limiting groove 1121. When the buffer sleeve 1212 abuts against the first limiting surface 1122, the buffer sleeve 1212 deforms under pressure, absorbs the energy generated by the collision, and reduces vibration and noise.
[0054] In another embodiment of the present invention, refer to Figures 8 to 12 , the mounting body 110 further includes a limiting member 113. The limiting member 113 is fixedly connected to the base 111, and the limiting member 113 is disposed around the circumferential outer side of the cutter head group 120; the limiting member 113 has a second limiting surface 1131 facing the base 111. The second limiting surface 1131 is spaced from the base 111 in the longitudinal direction. The second limiting surface 1131 constitutes the limiting structure 114. The buffer structure 121 is located between the second limiting surface 1131 and the base 114, and the buffer structure 121 is in limiting cooperation with the second limiting surface 1131.
[0055] Among them, the limiting member 113 is a sheet metal part with an annular structure, preferably laser welded at the head and tail. Sheet metal parts are usually light, which helps to reduce the overall volume and weight of the hair trimmer. At the same time, the sheet metal processing technology is mature, easy to achieve mass production, shorten the production cycle, and meet the needs of large-scale production. Laser welding has high precision and can form a firm weld at the connection, avoiding the fracture or loosening that may occur in traditional welding, and ensuring the stability and reliability of the limiting member 113 during use.
[0056] The limiting member 113 is fixedly connected to the base 111 through a threaded fastener, and is arranged circumferentially outside the cutter head 122 to provide longitudinal limitation for the cutter head 122, so as to limit the cutter head 122 from detaching from the base 111 longitudinally. At the same time, when the cutter head assembly 100 needs to be cleaned, after the housing 112 is disassembled, the components of the cutter head group 120 will not fall off or shift, making the maintenance of the cutter head assembly 100 more convenient and safe. The second limiting surface 1131 constituting the limiting structure 114 is arranged on the limiting member 113, and the second limiting surface 1131 is used to cooperate with the buffer structure 121 to limit the floating range of the cutter head group 120. When the cutter head 122 floats longitudinally, the lug 1211 wrapped with the buffer sleeve 1212 will move between the second limiting surface 1131 and the base 111, and the limiting member 113 effectively limits the floating range of the cutter head group 120 through the second limiting surface 1131.
[0057] Specifically, referring to Figure 12 , the limiting member 113 includes an abutting portion 1132 and a connecting portion 1133 fixedly connected to the abutting portion 1132. The connecting portion 1133 fits on the base 111, the abutting portion 1132 is fixedly connected to the side of the connecting portion 1133 away from the base 111, the second limiting surface 1131 is arranged on the abutting portion 1132, and the abutting portion 1132 and the base 111 enclose an abutting groove 1134, and the buffer structure 121 is located in the abutting groove 1134.
[0058] The shape of the abutting groove 1134 can be a long and narrow groove, and its depth and width are set to accommodate the buffer sleeve 1212 and allow it to float freely for a certain distance. When the cutter head group 120 floats longitudinally, the lug 1211 wrapped with the buffer sleeve 1212 will move in the abutting groove 1134. When the buffer sleeve 1212 abuts against the first limiting surface 1122, the buffer sleeve 1212 deforms under pressure, absorbs the energy generated by the collision, and reduces vibration and noise.
[0059] Further, in one embodiment, the cutter head group 120 includes a plurality of cutter heads 122 arranged side by side. The mounting body 110 further includes a limiting frame 115. The limiting frame 115 is fixedly connected to the base 111. The limiting frame 115 includes at least one limiting wall 1151. Any one of the limiting walls 1151 is located between two adjacent cutter heads 122. The limiting wall 1154 has a third limiting surface 1152 facing the base 111. The third limiting surface 1152 is spaced from the base 111 in the longitudinal direction. The third limiting surface 1152 constitutes a limiting structure 114. At least one of the two cutter heads 122 located on opposite sides of the limiting wall 1151 is provided with a buffer structure 121 on the side facing the limiting wall 1151.
[0060] In an embodiment of the present utility model, the cutter head group 120 includes three cutter heads 122 arranged side by side, namely two short whisker cutter heads 1223 and one long whisker cutter head 1224. The two short whisker cutter heads 1223 are respectively arranged at intervals on opposite sides of the long whisker cutter head 1224. The three cutter heads 122 are arranged at intervals in their width direction, which can more evenly cover the trimming area and improve the trimming effect. The three cutter heads can respectively trim hairs of different lengths to increase the functionality of the hair trimmer.
[0061] The limiting frame 115 includes two limiting walls 1151 arranged oppositely. The two limiting walls 1151 are respectively located on opposite sides of the long whisker cutter head 1124. The side of the short whisker cutter head 1223 close to the limiting wall 1151 is provided with a buffer structure. Buffer structures 121 are provided on both sides of each short whisker cutter head 1223 in its width direction, which can provide a uniform buffering effect when the cutter head 122 floats, and further reduce noise and vibration. The buffer structure 121 of the short whisker cutter head 1223 close to the outer shell 112 is in longitudinal limiting cooperation with the first limiting surface 1122 of the limiting groove 1121 on the inner side of the outer shell 112. The buffer structure 121 close to the limiting wall 1151 is in longitudinal limiting cooperation with the limiting wall 1151, so that the forces on both sides of the short whisker cutter head 1223 are balanced, and the situation that the short whisker cutter head 1223 tilts to one end is avoided. Buffer structures 121 are respectively arranged on the two decorative end caps 1227 of the long whisker cutter head 1223. The buffer structures 121 on the decorative end caps 1227 are in limiting cooperation with the first limiting surface 1122 of the limiting groove 1121 on the inner side of the outer shell 112 to limit the floating range of the long whisker cutter head 1223 while reducing noise.
[0062] In other embodiments, the cutting head group 120 may include two cutting heads 122, four cutting heads 122 or more cutting heads 122. When the cutting head 122 group includes two cutting heads 122, the limiting frame 155 includes a limiting wall 1151, and one or two cutting heads are provided with a buffer structure 121 on the side facing the limiting wall 1151 to cooperate with the limiting structure 114 on the limiting wall 1151; when the cutting head 122 group includes four cutting heads 122, the limiting frame 155 includes three limiting walls 1151, each limiting wall is located between two adjacent cutting heads 122, and so on, which will not be repeated here.
[0063] The limiting wall 1151 of the limiting frame 115 is located between two adjacent cutting heads 122 and can also limit the position of each cutting head 122 in the lateral direction, reducing lateral shaking of each cutting head 122 during operation and improving the overall stability of the cutting head assembly 100. In some embodiments, the limiting frame 115 and the base 111 can be fixed by a buckle. In other embodiments, the limiting frame 115 and the base 111 are fixedly connected by threaded fasteners.
[0064] The present invention further provides a hair trimmer, comprising the above-mentioned cutter head assembly 100 and a driving device (not shown), wherein an output shaft of the driving device is connected to the cutter head assembly 100 .
[0065] This utility model also provides a hair trimmer, comprising a drive device and a cutter head assembly 100. The specific structure of the cutter head assembly 100 is similar to the above-described embodiments. Since this hair trimmer utilizes all the technical solutions of all of the above-described embodiments, it at least possesses all the beneficial effects brought about by the technical solutions of the above-described embodiments, and a detailed description thereof will not be given here. The output shaft of the drive device is connected to the cutter head assembly 100. Specifically, the output shaft of the drive device is fixedly connected to each cutter head 122 of the cutter head assembly 120. The hair trimmer can be a shaver, hair clipper, trimmer, etc., without specific limitation herein.
[0066] 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 assembly, characterized in that, Comprising: An installation body, including a base and a housing connected to the base, the housing and the base form an installation cavity, and a limiting structure spaced from the base in the longitudinal direction is provided in the installation cavity; And A cutter head group, installed in the installation cavity, the cutter head group includes at least one cutter head, the cutter head is installed on the base in a longitudinally floating manner, a buffer structure is provided transversely along the circumferential side of the cutter head, the buffer structure and the limiting structure are arranged corresponding to each other in the longitudinal direction, and the buffer structure and the limiting structure are in limiting cooperation to limit the cutter head from separating from the base in the longitudinal direction.
2. The cutter head assembly according to claim 1, wherein The buffer structure includes a lug and a buffer sleeve arranged transversely, the lug is fixedly connected to the circumferential side of the cutter head, the buffer sleeve is sleeved on the lug, and the buffer sleeve abuts against the limiting structure.
3. The cutter head assembly according to claim 1, wherein The cutter head includes a fixed cutter, a movable cutter and a mounting frame, the fixed cutter is fixedly connected to the mounting frame, the movable cutter is arranged inside the fixed cutter, and the movable cutter can reciprocate along its length direction to cooperate with the fixed cutter to shear hair; the buffer structure is fixedly connected to the circumferential side of the mounting frame, the housing is arranged around the outer periphery of the mounting frame, and the buffer structure is located between the limiting structure and the base.
4. The cutter head assembly according to claim 3, wherein The mounting frame includes a strip-shaped frame body and two decorative end caps respectively installed at both ends of the frame body in its length direction, and the buffer structure is fixedly connected to the circumferential side of the frame body and / or the decorative end caps.
5. The cutter head assembly according to claim 4, characterized in that, A plurality of the buffer structures are arranged at intervals along the length direction of the frame body.
6. The cutter head assembly according to any one of claims 1-5, characterized in that, A limiting groove is formed in the inner wall of the housing, the limiting groove includes a first limiting surface facing the base, the first limiting surface is spaced from the base in the longitudinal direction, the first limiting surface constitutes the limiting structure, the buffer structure is located in the limiting groove, and the buffer structure and the first limiting surface are in limiting cooperation.
7. The cutter head assembly according to any one of claims 1 to 5, characterized in that, The installation body further includes a limiting member, the limiting member is fixedly connected to the base, and the limiting member is arranged around the circumferential outer side of the cutter head group; The limiting member has a second limiting surface facing the base, the second limiting surface is spaced from the base in the longitudinal direction, the second limiting surface constitutes the limiting structure, the buffer structure is located between the second limiting surface and the base, and the buffer structure and the second limiting surface are in limiting cooperation.
8. The cutter head assembly according to claim 7, wherein, The limiting member includes an abutting portion and a connecting portion fixedly connected to the abutting portion, the connecting portion is fixedly connected to the base, the abutting portion is connected to the side of the connecting portion away from the base, the second limiting surface is arranged on the abutting portion, and an abutting groove is formed by the abutting portion and the base enclosing each other, and the buffer structure is located in the abutting groove.
9. The cutter head assembly according to any one of claims 1 to 5, characterized in that The cutter head group includes a plurality of cutter heads arranged side by side; The installation body further includes a limiting frame, the limiting frame is fixedly connected to the base, the limiting frame includes at least one limiting wall, any one of the limiting walls is located between two adjacent cutter heads, the limiting wall has a third limiting surface facing the base, the third limiting surface is spaced from the base in the longitudinal direction, the third limiting surface constitutes the limiting structure, and at least one of the two cutter heads on opposite sides of the limiting wall is provided with the buffer structure on the side facing the limiting wall.
10. A hair trimmer, characterized in that, It includes the cutter head assembly and the driving device according to any one of claims 1 to 9, and the output shaft of the driving device is connected to the cutter head assembly.