Reciprocating type trimming cutter head structure

Abstract

The utility model discloses a reciprocating type trimming cutter head structure which comprises a cutter rest, a fixed cutter connected to the cutter rest and provided with a fixed blade, and a movable cutter assembly provided with a movable blade and located below the fixed cutter. The tool bit structure further comprises a driving assembly connected to the tool rest and capable of driving the movable tool assembly to reciprocate left and right and two adaptation assemblies located on the front side and the rear side of the movable tool assembly respectively, and first elastic arms are connected between the adaptation assemblies and the tool rest so that the adaptation assemblies can be attached to the skin to float up and down. By the adoption of the structure, the fitting degree of the tool bit in complex face areas such as the nose wing and the mandibular line is enhanced, and the phenomena that the skin is uncomfortable due to pulling and hair removal is incomplete are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hair care, in particular to a reciprocating trimming head structure. Background Art

[0002] As an important component of personal care products, trimmers are mainly used to shave human hair such as beards, trim sideburns and hairstyle edges. Traditional reciprocating trimming head structures usually use a moving blade and a fixed blade to cut or shave hair. However, in actual use, this type of design is prone to causing skin pulling discomfort, scratches or uneven shaving due to the direct contact between the blade and the skin and the relatively simple movements.

[0003] Although the trimming devices currently on the market have a blade head assembly with fine-tunable angles to fit the human skin surface, they still have problems with insufficient adaptability to facial contours and limited operational flexibility. Especially when dealing with complex facial curves, such as the wings of the nose and jawline, traditional blade heads often find it difficult to achieve a trimming effect with good fit. Utility Model Content

[0004] In view of this, the purpose of the present invention is to provide a reciprocating trimming head structure, which has adaptive components on the front and rear sides of the moving blade assembly that can fit the skin and float up and down, so that the blade head can adjust its position according to changes in the facial contour.

[0005] The technical solution adopted by the utility model to solve its technical problems is to provide a reciprocating trimming head structure, including a knife holder, a fixed knife connected to the knife holder and having a fixed blade, and a movable knife assembly having a movable blade and located under the fixed knife. The knife head structure also includes a driving assembly connected to the knife holder and capable of driving the movable knife assembly to move back and forth left and right, and two adapting assemblies respectively located at the front and rear sides of the movable knife assembly. A first elastic arm is connected between the adapting assembly and the knife holder so that the adapting assembly can float up and down in contact with the skin. The knife holder is also provided with two rolling assemblies respectively located at the side of the adapting assembly away from the movable knife assembly.

[0006] As a further improvement of the utility model, the first elastic arm includes a fixed shaft arranged on the tool holder, a first spring sleeved on the fixed shaft, and a connecting seat connected between the first spring and the adaptation component, and the connecting seat is provided with a connecting through hole for the fixed shaft to pass through.

[0007] As a further improvement of the utility model, the tool holder is provided with a tool holder through hole, the driving assembly includes a driving body, a first swinging member, and a second elastic arm connected between the tool holder and the driving body so that the driving body can reciprocate left and right relative to the tool holder, the driving body is provided with a transmission groove for inserting a power source, the first swinging member passes through the tool holder through hole and is connected between the driving body and the moving knife assembly, and a first elastic member that can push the moving blade to fit the fixed blade is connected between the moving knife assembly and the tool holder.

[0008] As a further improvement of the utility model, the movable knife assembly includes a movable knife seat and a transmission seat connected under the movable knife seat, the transmission seat is provided with a transmission hole for the first swinging member to be inserted, and the movable knife blade is arranged on the movable knife seat.

[0009] As a further improvement of the present invention, the tool holder includes a main frame and a transition connecting frame, the second elastic arm and the tool holder through hole are arranged on the main frame, the fixed knife is connected to the transition connecting frame, and a third elastic member is connected between the main frame and the transition connecting frame so that the transition connecting frame can drive the fixed knife to float up and down.

[0010] As a further improvement of the present invention, a second boss and a third boss are provided on the left and right sides of the transition connecting frame, and the main frame is provided with a fourth boss located between the second boss and the third boss. The transition connecting frame has a lowest position and a highest position. When it is at the lowest position, the fourth boss abuts against the second boss, and when it is at the highest position, the third boss abuts against the fourth boss.

[0011] As a further improvement of the utility model, the transition connecting frame is provided with a fifth boss, and the main frame is provided with a guide groove which opens upward and into which the fifth boss can be inserted.

[0012] As a further improvement of the utility model, a buckle which can be inserted into and installed on the trimmer body is provided on the main frame.

[0013] As a further improvement of the utility model, a swing through hole is provided on the second elastic arm, and the upper surface of the adaptation component is an arc-shaped surface.

[0014] As a further improvement of the present invention, the highest point of the rolling assembly and the upper surface of the fixed knife are located on the same horizontal plane;

[0015] The rolling assembly comprises a supporting shaft and a plurality of balls sleeved on the supporting shaft.

[0016] The beneficial effects of the utility model are at least:

[0017] 1. The rolling component can reduce the friction between the skin and the cutter head, making it smoother during use and reducing skin irritation. Compared with the existing rolling components that can adjust the spacing, this rolling component adopts an integrated fixed setting, which can not only reduce the process cost, but also play a supporting and guiding role, avoiding the imbalance of force caused by the offset of the rolling component during use, thereby avoiding damage to the skin; by arranging adaptive components that can fit the skin and float up and down on the front and back sides of the moving knife component, the cutter head can adjust its position according to the changes in the facial contour, thereby enhancing the fit of the cutter head in complex facial areas such as the nose and jawline, and reducing the discomfort of skin pulling and incomplete hair removal.

[0018] 2. The connection of the third elastic part allows the fixed knife to float up and down within a certain range. This design enables the fixed knife to better adapt to the contour of the facial skin; the presence of the third elastic part plays a buffering role, reducing the pressure on the knife head during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a structural schematic diagram of another embodiment of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the utility model from another angle;

[0022] Figure 4 It is a schematic diagram of the structure of the utility model in the upward direction with some structures omitted;

[0023] Figure 5 It is the structural explosion diagram of the utility model and its partial enlarged diagram;

[0024] Figure 6 It is an exploded diagram of the structure of the utility model after omitting some structures;

[0025] Figure 7 It is an exploded diagram of the structure of the utility model after omitting some structures;

[0026] Figure 8 yes Figure 2 Cross-sectional view along the AA direction. DETAILED DESCRIPTION

[0027] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0028] Reference Figure 1-8The utility model proposes a reciprocating trimming head structure, including a knife frame 1, a fixed knife 3 connected to the knife frame 1 and having a fixed blade 31, and a movable knife assembly 4 having a movable blade 411 and located under the fixed knife 3. The knife head structure also includes a driving assembly 2 connected to the knife frame 1 and capable of driving the movable knife assembly 4 to move back and forth left and right, and two adapting assemblies 6 respectively located at the front and rear sides of the movable knife assembly 4. A first elastic arm 61 is connected between the adapting assembly 6 and the knife frame 1 so that the adapting assembly 6 can float up and down in contact with the skin. The knife frame is also provided with two rolling assemblies 7 respectively located at the side of the adapting assembly 6 away from the movable knife assembly 4.

[0029] The rolling component 7 can reduce the friction between the skin and the cutter head, making it smoother during use. By arranging an adaptable component 6 that can fit the skin and float up and down on the front and back sides of the moving cutter component 4, the cutter head can adjust its position according to the changes in the facial contour, thereby enhancing the fit of the cutter head in complex facial areas such as the nose and jawline, reducing the discomfort of skin pulling and incomplete hair removal.

[0030] Reference Figure 7 It can be seen that the first elastic arm 61 includes a fixed shaft 611 arranged on the tool holder 1, a first spring 612 sleeved on the fixed shaft 611, and a connecting seat 613 connected between the first spring 612 and the adaptation component 6, and the connecting seat 613 is provided with a connecting through hole for the fixed shaft 611 to pass through.

[0031] Reference Figure 6 and Figure 8 The tool holder 1 is provided with a tool holder through hole 11, the driving assembly 2 includes a driving body 24, a first swinging member 21, and a second elastic arm 23 connected between the tool holder 1 and the driving body 24 so that the driving body 24 can reciprocate left and right relative to the tool holder 1, the driving body 24 is provided with a transmission groove 22 for inserting a power source, the first swinging member 21 passes through the tool holder through hole 11 and is connected between the driving body 24 and the moving knife assembly 4, and a first elastic member 5 that can push the moving blade 411 to fit the fixed blade 31 is connected between the moving knife assembly 4 and the tool holder 1.

[0032] As a preferred solution, refer to Figure 4 It can be seen that the transmission groove 22 is arranged on the lower surface of the driving body 24 , and of course, it can also be arranged in the front and rear directions of the driving body 24 .

[0033] Reference Figure 6 It can be seen that the movable knife assembly 4 includes a movable knife seat 41 and a transmission seat 42 connected below the movable knife seat 41 . The transmission seat 42 is provided with a transmission hole 421 for the first swinging member 21 to be inserted. The movable blade 411 is arranged on the movable knife seat 41 .

[0034] The power source is inserted into the transmission groove 22 to drive the driving body 24 to swing back and forth, thereby driving the first swinging member 21 to swing back and forth. At this time, the first swinging member 21 strikes the inner wall of the transmission hole 421 back and forth, thereby driving the movable knife seat 41 to swing back and forth to achieve the trimming action.

[0035] Reference Figure 6 and Figure 8 The knife holder includes a main frame 12 and a transition connecting frame 13, the second elastic arm 23 and the knife holder through hole 11 are arranged on the main frame 12, the fixed knife 3 is connected to the transition connecting frame 13, and a third elastic member 14 is connected between the main frame 12 and the transition connecting frame 13 so that the transition connecting frame 13 can drive the fixed knife 3 to float up and down; the connection of the third elastic member 14 allows the fixed knife 3 to float up and down within a certain range. This design enables the fixed knife 3 to better adapt to the contour of the facial skin; the existence of the third elastic member 14 plays a buffering role, reduces the pressure on the knife head during use, reduces the wear on the fixed knife 3 and the movable knife assembly 4, and thus prolongs the service life.

[0036] The first elastic member 5 can be connected to the main frame 12 or the transition connecting frame 13 .

[0037] Reference Figure 6 The movable knife assembly 4 is provided with movable knife through holes 43 on the left and right sides respectively, and the transition connecting frame 13 is provided with a first boss 131 inserted into the movable knife through hole 43 so that the movable knife assembly 4 can move up and down along the side wall of the first boss 131, playing a guiding role, avoiding the movable knife assembly 4 from deviating and scratching the skin during the back and forth swinging process.

[0038] Reference Figure 6 and Figure 8 A second boss 132 and a third boss 133 are provided on the left and right sides of the transition connecting frame 13, and the main frame 12 is provided with a fourth boss 121 located between the second boss 132 and the third boss 133. The transition connecting frame 13 has a lowest position and a highest position. When it is in the lowest position, the fourth boss 121 abuts against the second boss 132, and when it is in the highest position, the third boss 133 abuts against the fourth boss 121; preventing the transition connecting frame 13 from moving too much, thereby causing the fixed knife 3 and the movable knife assembly 4 to fall out or be pressed down too much, resulting in failure to trim, thereby ensuring the shearing effect and safety during the trimming process.

[0039] Reference Figure 5 In the partially enlarged view, the transition connecting frame 13 is provided with a fifth boss 134, and the main frame 12 is provided with a guide groove 122 which opens upward and can be inserted into the fifth boss 134, playing a guiding role, so that the transition connecting frame 13 can only move up and down along the guide groove 122, avoiding the movable knife assembly 4 from shaking left and right and causing scratches on human skin.

[0040] As a preferred solution of the present invention, the fifth boss 134 is arranged between the second boss 132 and the third boss 133, and can also be arranged below the third boss 133. Since the fixed knife 3 is the main force-bearing surface, the guiding effect can be improved when the fifth boss 134 is arranged at a higher position.

[0041] Reference Figure 3 The main frame 12 is provided with a buckle 123 which can be inserted into and installed on the trimmer body; the knife holder can be connected to the trimmer body through the buckle 123 and can reduce the vibration caused by the driving member.

[0042] Reference Figure 4 The second elastic arm 23 is provided with a swing through hole 231, and the upper surface of the adaptation component 6 is an arc surface 62; the swing through hole 231 can increase the degree of deformation of the second elastic arm 23, improve the elasticity while ensuring the connection strength, and avoid transmitting the swing to the tool holder when the driving component 2 moves back and forth, thereby preventing the user's hand from being vibrated and feeling uncomfortable.

[0043] Reference Figure 1 and Figure 2 The highest point of the rolling component 7 is located on the same horizontal plane as the upper surface of the fixed knife 3. The rolling component 7 can reduce the friction between the skin and the knife head, making it smoother during use and reducing skin irritation.

[0044] As the first embodiment of this utility, refer to Figure 1 The rolling assembly 7 includes a support shaft 71 and a plurality of balls 72 sleeved on the support shaft 71. The balls 72 have an arc-shaped surface. When a plurality of balls 72 are formed, the friction can be reduced and the skin can be massaged.

[0045] As a second embodiment of this utility, refer to Figure 2 , the rolling component 7 is a roller shaft.

Claims

1. A reciprocating trimming head structure, characterized in that: The present invention comprises a knife frame (1), a fixed knife (3) connected to the knife frame (1) and having a fixed blade (31), and a movable knife assembly (4) having a movable blade (411) and located below the fixed knife (3); the knife head structure also comprises a driving assembly (2) connected to the knife frame (1) and capable of driving the movable knife assembly (4) to move back and forth, and two adapting assemblies (6) respectively located at the front and rear sides of the movable knife assembly (4); a first elastic arm (61) is connected between the adapting assembly (6) and the knife frame (1) so that the adapting assembly (6) can float up and down in contact with the skin; and the knife frame (1) is also provided with two rolling assemblies (7) respectively located at the side of the adapting assembly (6) away from the movable knife assembly (4).

2. A reciprocating trimming head structure according to claim 1, characterized in that: The first elastic arm (61) comprises a fixed shaft (611) arranged on the tool holder (1), a first spring (612) sleeved on the fixed shaft (611), and a connecting seat (613) connected between the first spring (612) and the adaptable component (6), wherein the connecting seat (613) is provided with a connecting through hole for the fixed shaft (611) to pass through.

3. The reciprocating trimming head structure according to claim 1, characterized in that: The tool holder (1) is provided with a tool holder through hole (11); the driving assembly (2) comprises a driving body (24), a first swinging member (21), and a second elastic arm (23) connected between the tool holder (1) and the driving body (24) so ​​that the driving body (24) can reciprocate left and right relative to the tool holder (1); the driving body (24) is provided with a transmission groove (22) for inserting a power source; the first swinging member (21) passes through the tool holder through hole (11) and is connected between the driving body (24) and the moving knife assembly (4); a first elastic member (5) capable of pushing the moving blade (411) to fit the fixed blade (31) is connected between the moving knife assembly (4) and the tool holder (1).

4. A reciprocating trimming head structure according to claim 3, characterized in that: The movable knife assembly (4) comprises a movable knife seat (41) and a transmission seat (42) connected below the movable knife seat (41); the transmission seat (42) is provided with a transmission hole (421) for the first swinging member (21) to be inserted; and the movable blade (411) is arranged on the movable knife seat (41).

5. The reciprocating trimming head structure according to claim 3, characterized in that: The tool holder (1) comprises a main frame (12) and a transition connecting frame (13); the second elastic arm (23) and the tool holder through hole (11) are arranged on the main frame (12); the fixed knife (3) is connected to the transition connecting frame (13); and a third elastic member (14) is connected between the main frame (12) and the transition connecting frame (13) so that the transition connecting frame (13) can drive the fixed knife (3) to float up and down.

6. The reciprocating trimming head structure according to claim 5, characterized in that: The left and right sides of the transition connecting frame (13) are each provided with a second boss (132) and a third boss (133); the main frame (12) is provided with a fourth boss (121) located between the second boss (132) and the third boss (133); the transition connecting frame (13) has a lowest position and a highest position; when located at the lowest position, the fourth boss (121) abuts against the second boss (132); and when located at the highest position, the third boss (133) abuts against the fourth boss (121).

7. The reciprocating trimming head structure according to claim 5, characterized in that: The transition connection frame (13) is provided with a fifth boss (134), and the main frame (12) is provided with a guide groove (122) which opens upward and into which the fifth boss (134) can be inserted.

8. The reciprocating trimming head structure according to claim 5, characterized in that: The main frame (12) is provided with a buckle (123) that can be inserted into and installed on the trimmer body.

9. The reciprocating trimming head structure according to claim 3, characterized in that: The second elastic arm (23) is provided with a swing through hole (231), and the upper surface of the adaptable component (6) is an arc-shaped surface (62).

10. The reciprocating trimming head structure according to claim 1, characterized in that: The highest point of the rolling assembly (7) is located on the same horizontal plane as the upper surface of the fixed knife (3); The rolling assembly (7) comprises a support shaft (71) and a plurality of rolling balls (72) sleeved on the support shaft (71).

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