Hair trimmer tool bit and electric shaver

Abstract

The utility model relates to a tool bit of a hair trimmer and an electric shaver. The tool bit of the hair trimmer and the electric shaver are attached to skin at different positions of a human body. The hair trimmer tool bit comprises a shell, a tool bit body and a tool bit body. The shell is provided with a containing cavity. The first hair trimming assembly comprises a first fixed cutter blade and a first movable cutter blade; the second hair trimming assembly comprises a second fixed cutter blade and a second movable cutter blade, and the shape of the second hair trimming assembly is different from that of the first hair trimming assembly, so that the first hair trimming assembly and the second hair trimming assembly are attached to the skin at different positions of the human body; the mounting seat is arranged in the accommodating cavity; the swing rod is rotationally connected with the mounting seat; wherein the first movable cutter blade and the second movable cutter blade are movably arranged on the swing rod, and in the process that the swing rod rotates relative to the mounting base, the first movable cutter blade transversely reciprocates relative to the first fixed cutter blade, and the second movable cutter blade transversely reciprocates relative to the second fixed cutter blade.

Description

Technical Field

[0001] The utility model relates to a hair trimmer head and an electric shaver. Background Art

[0002] The hair trimmer head comprises a fixed blade mounted on a blade head seat and a movable blade driven by a movable blade transmission frame, wherein the movable blade has a non-working state and a working state. When the movable blade is in the non-working state, hair can pass through the fixed blade and enter a shaving space of the hair trimmer head; when the movable blade is in the working state, the movable blade cuts the hair entering the shaving space.

[0003] The movable blade switches cyclically between a non-working state and a working state so that the hair trimmer head can continuously trim the hair at different positions of the human body. However, the skin of the human body at different positions has different curvatures, and the existing hair trimmer head cannot fit the skin at different positions of the human body. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a hair trimmer head and an electric shaver so as to fit the skin of different positions of the human body.

[0005] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0006] Hair trimmer heads include:

[0007] A housing, wherein the housing is provided with a receiving cavity;

[0008] A first hair trimming component, the first hair trimming component comprises a first fixed blade and a first movable blade;

[0009] a second hair trimming assembly, the second hair trimming assembly comprising a second fixed blade and a second movable blade, the shape of the second hair trimming assembly being different from that of the first hair trimming assembly, so that the first hair trimming assembly and the second hair trimming assembly can fit the skin of different positions of the human body;

[0010] A mounting seat, the mounting seat is arranged in the accommodating cavity;

[0011] A swing rod, the swing rod is rotatably connected to the mounting seat;

[0012] The first movable blade and the second movable blade are respectively movably arranged on the swing rod. When the swing rod rotates relative to the mounting seat, the first movable blade reciprocates laterally relative to the first fixed blade, and the second movable blade reciprocates laterally relative to the second fixed blade.

[0013] Furthermore, the first fixed blade is provided with a plurality of first hair feed channels, and the second fixed blade is provided with a plurality of second hair feed channels, and the hair feed direction of the first hair feed channels is different from the hair feed direction of the second hair feed channels.

[0014] Furthermore, the first fixed knife blade and the second fixed knife blade are staggered, and one of the first beard inlet channel and the second beard inlet channel is an open beard inlet channel, and the other is a closed beard inlet channel.

[0015] Furthermore, the first fixed blade is provided with a plurality of first hair inlet holes, which are the first hair inlet channels, and the second fixed blade is provided with a plurality of second hair inlet grooves, which are the second hair inlet channels;

[0016] And / or, at least part of the first hair inlet hole is located above the second hair inlet groove.

[0017] Furthermore, the first movable blade is provided with a first movable blade holder, the first movable blade holder is provided with a first swinging groove, the swinging rod is provided with a first swinging protrusion, and the first swinging protrusion is inserted into the first swinging groove;

[0018] Among them, a plurality of first shaving channels are provided on the first movable blade. When the first swinging protrusion is inserted into the first swinging groove, the first swinging protrusion pushes the first movable blade to reciprocate laterally relative to the first fixed blade through the first swinging groove, so that the first shaving channel corresponds to or is staggered with one of the first beard feeding channels.

[0019] Furthermore, it also includes a support rod and a first fixed knife rack, the first fixed knife blade is fixedly connected to the first fixed knife rack, the support rod is located between the first movable knife blade and the first fixed knife rack, and the support rod pushes the first movable knife blade to abut against the inner side of the first fixed knife blade.

[0020] Furthermore, it also includes a first elastic element and a mounting seat, the first elastic element is clamped between the first fixed knife holder and the mounting seat, the swing rod is rotatably connected to the mounting seat, the mounting seat is slidably connected to the shell, and the first elastic element pushes the mounting seat to slide relative to the shell to make the swing rod approach or move away from the first hair trimming component.

[0021] Furthermore, the second movable blade is provided with a second movable blade holder, the second movable blade holder is provided with a second swinging groove, the swinging rod is provided with a second swinging protrusion, and the second swinging protrusion is inserted into the second swinging groove;

[0022] Among them, a plurality of second shaving channels are provided on the second movable blade. When the second swinging protrusion is inserted into the second swinging groove, the second swinging protrusion pushes the second movable blade to reciprocate laterally relative to the second fixed blade through the second swinging groove, so that the second shaving channel corresponds to or is staggered with one of the second beard inlet channels.

[0023] Furthermore, it also includes a second movable knife holder, a second elastic element and a second fixed knife holder, the second fixed knife blade is fixedly connected to the second fixed knife holder, the second elastic element is clamped between the second movable knife holder and the shell, and the second elastic element pushes the second movable knife blade to abut the second fixed knife holder through the second movable knife holder.

[0024] The electric shaver comprises the hair trimmer head described above.

[0025] Compared with the prior art, the above structural design has the following advantages:

[0026] In this design, the hair trimmer head includes a first hair trimming component and a second hair trimming component, and the shape of the second hair trimming component is different from that of the first hair trimming component, so that the first hair trimming component and the second hair trimming component can fit different positions of the human body. The utility model uses two hair trimming components of different shapes to make the hair trimmer head fit the skin of more different positions of the human body, so that the hair trimmer head can trim the hair on the skin of different positions of the human body more cleanly.

[0027] In the present design, the first movable blade and the second movable blade are movably arranged on the swing rod respectively. During the rotation of the swing rod relative to the mounting seat, the first movable blade reciprocates laterally relative to the first fixed blade, and the second movable blade reciprocates laterally relative to the second fixed blade. The swing rod of the present utility model can drive the first movable blade and the second movable blade to reciprocate laterally at the same time. During the process of the swing rod driving the first movable blade and the second movable blade to reciprocate laterally at the same time, the first hair trimming component can trim the hair on the human skin, and the second hair trimming component can also trim the hair on the human skin. Since the shape of the second hair trimming component is different from the shape of the first hair trimming component, the first hair trimming component and the second hair trimming component have the possibility of trimming the hair on the skin of two different positions of the human body at the same time, which means that the hair trimmer head of the present design can not only fit the skin of more different positions of the human body, but also the hair trimmer head has the possibility of faster hair trimming efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a stereoscopic diagram of the cutter head of the hair trimmer in the utility model.

[0029] Figure 2 It is a stereoscopic diagram of the cutter head of the hair trimmer of the utility model (without the outer shell).

[0030] Figure 3 yes Figure 2 Exploded diagram.

[0031] Figure 4 It is a top view of the cutter head of the hair trimmer in the utility model.

[0032] Figure 5 yes Figure 4 AA view.

[0033] Figure 6 It is a stereoscopic diagram of the second hair trimming component in the utility model.

[0034] Figure 7 It is a stereoscopic diagram of the first hair trimming component in the utility model.

[0035] Figure 8 It is a stereoscopic diagram of the first movable blade, the second movable blade, the second elastic element and the swing rod in the utility model.

[0036] Fig. 9 It is a stereoscopic diagram of the first movable knife holder, the first fixed knife holder, the first elastic element, the mounting seat and the swing rod in the utility model.

[0037] Fig.10 It is a stereoscopic diagram of the mounting seat and the swing rod in the utility model.

[0038] Fig.11 It is a stereoscopic diagram of the support rod and the first moving knife holder in the utility model.

[0039] Fig.12 It is a three-dimensional diagram of the first elastic element and the first movable knife holder in the utility model.

[0040] Fig.13 It is a stereoscopic diagram of the second elastic element and the housing in the utility model.

[0041] Fig.14 It is a stereoscopic diagram of the mounting seat and the shell in the utility model.

[0042] As shown in the figure: 1, first hair trimming assembly; 11, first fixed blade; 111, first beard inlet channel; 12, first movable blade; 121, first shaving channel;

[0043] 2. second hair trimming assembly; 21. second fixed blade; 211. beard inlet; 212. second beard inlet slot; 22. second movable blade; 221. shaving blade; 222. second shaving slot;

[0044] 3. first movable knife rest; 31 mounting portion; 32 driving portion; 321 first swinging groove;

[0045] 4. Support rod; 5. First elastic element;

[0046] 6. Second moving knife rest; 61. Second swinging groove;

[0047] 7. A second elastic element;

[0048] 8. Swing rod; 81. First swing protrusion; 82. Second swing protrusion;

[0049] 10. Shell; 101. Accommodating cavity; 20. Cover plate; 30. First fixed knife holder; 40. Second fixed knife holder; 50. Mounting seat. DETAILED DESCRIPTION

[0050] The present invention is further described in detail below through specific implementation examples and in conjunction with the accompanying drawings:

[0051] The utility model discloses a hair trimmer head, as shown in the following drawings: Figure 1 It is a three-dimensional diagram of the hair trimmer head of the utility model; Figure 2 It is a three-dimensional diagram of the hair trimmer head (without the outer shell) of the utility model; Figure 3 yes Figure 2 Exploded diagram of Figure 4 It is a top view of the hair trimmer head of the utility model; Figure 5 yes Figure 4 AA view; Figure 6 is a three-dimensional diagram of the second hair trimming component of the utility model; Figure 7 It is a three-dimensional diagram of the first hair trimming assembly in the utility model; Figure 8 It is a three-dimensional diagram of the first movable blade, the second movable blade, the second elastic element and the swing rod in the utility model; Fig. 9 It is a three-dimensional diagram of the first movable knife holder, the first fixed knife holder, the first elastic element, the mounting seat and the swing rod in the utility model; Fig.10 It is a three-dimensional diagram of the mounting seat and the swing rod in the utility model; Fig.11 It is a three-dimensional diagram of the support rod and the first moving knife holder in the utility model; Fig.12 It is a three-dimensional diagram of the first elastic element and the first movable knife holder in the utility model; Fig.13 It is a three-dimensional diagram of the second elastic element and the housing in the utility model; Fig.14 It is a stereoscopic diagram of the mounting seat and the shell in the utility model.

[0052] Embodiment 1

[0053] Hair trimmer heads include:

[0054] The housing 10 is provided with a receiving cavity 101;

[0055] A first hair trimming assembly 1, the first hair trimming assembly 1 comprising a first fixed blade 11 and a first movable blade 12;

[0056] A second hair trimming component 2, the second hair trimming component 2 comprising a second fixed blade 21 and a second movable blade 22, the shape of the second hair trimming component 2 being different from that of the first hair trimming component 1, so that the first hair trimming component 1 and the second hair trimming component 2 can fit the skin of different positions of the human body;

[0057] A mounting seat 50, the mounting seat 50 is disposed in the accommodating cavity 101;

[0058] A swing rod 8, the swing rod 8 is rotatably connected to the mounting seat 50;

[0059] Among them, the first movable knife blade 12 and the second movable knife blade 22 are respectively movably arranged on the swing rod 8. When the swing rod 8 rotates relative to the mounting seat 50, the first movable knife blade 12 reciprocates laterally relative to the first fixed knife blade 11, and the second movable knife blade 22 reciprocates laterally relative to the second fixed knife blade 21.

[0060] exist Figure 1 , Figure 4 and Figure 5 In the embodiment, the first fixed knife blade 11 and the first movable knife blade 12 are arc-shaped, the first fixed knife blade 11 is located outside the first movable knife blade 12, and the shape of the first fixed knife blade 11 is different from the shape of the second fixed knife blade 21. Since the shape of the first fixed knife blade 11 is different from the shape of the second fixed knife blade 21, the first fixed knife blade 11 and the second fixed knife blade 21 fit the skin of the human body at different positions; in addition, the second fixed knife blade 21 is located above the second movable knife blade 22, that is, one of the second fixed knife blade 21 and the second movable knife blade 22 can first contact the skin of the human body, and then Figure 2 In the embodiment, the shape of the first fixed knife blade 11 is different from the shape of the second movable knife blade 22. Since the shape of the first fixed knife blade 11 is different from the shape of the second movable knife blade 22, the first fixed knife blade 11 and the second movable knife blade 22 fit the skin at different positions of the human body.

[0061] exist Figure 6 and Figure 7 In the embodiment, the first fixed knife blade 11 is provided with a plurality of first hair inlet channels 111 , and the second fixed knife blade 21 is provided with a plurality of second hair inlet channels 212 . The hair inlet direction of the first hair inlet channels 111 is different from the hair inlet direction of the second hair inlet channels 212 .

[0062] exist Figure 1 and Figure 2 In the embodiment, a cover plate 20 is arranged between the first fixed knife blade 11 and the second fixed knife blade 21, the first fixed knife blade 11 and the second fixed knife blade 21 are staggered, one of the first beard inlet channel 111 and the second beard inlet channel 212 is an open beard inlet channel, and the other is a closed beard inlet channel.

[0063] In this embodiment, the first fixed blade 11 is provided with a plurality of first beard inlet holes, which are the first beard inlet channels 111; the first movable blade 12 is provided with a plurality of first shaving channels 121, which are the first shaving holes; the second fixed blade 21 is provided with a plurality of beard inlet toughnesses 211 and a plurality of second beard inlet grooves, which are the second beard inlet channels 212, which are located between two adjacent beard inlet toughnesses 211; the second movable blade 22 is provided with a plurality of shaving toughnesses 221 and a plurality of second shaving grooves 222, which are located between two adjacent shaving toughnesses 221.

[0064] In this embodiment, the first movable blade 12 has a non-working state and a working state. When the first movable blade 12 is in the non-working state, at least part of the first shaving channel 121 corresponds to the first beard inlet channel 111, and the hair on the human skin can pass through the first beard inlet channel 111 to enter the accommodating chamber 101. The accommodating chamber 101 is a shaving space, and the hair trimmer head trims the hair in the shaving space; when the first movable blade 12 is in the working state, the first shaving channel 121 and the first beard inlet channel 111 are staggered to achieve the first shaving channel 121 and the first beard inlet channel 111 to cooperate with each other and trim the hair. Similarly, the second movable blade 22 has a non-working state and a working state. When the second movable blade 22 is in the non-working state, at least part of the second shaving groove 222 corresponds to the second beard entry channel 212, and the hair on the human skin can pass through the second beard entry channel 212; when the second movable blade 22 is in the working state, the second shaving groove 222 and the second beard entry channel 212 are staggered to achieve the second shaving groove 222 and the second beard entry channel 212 to cooperate with each other and trim the hair.

[0065] Preferably, the hair inlet toughness 211 is provided with an inclined guide surface 2111 for guiding the hair into the second hair inlet channel 212, and the shaving toughness 221 is provided with an inclined shaving blade 2211 for cutting hair more sharply.

[0066] Preferably, at least part of the first hair entry hole is located above the second hair entry groove. This structure reduces the probability that the second hair trimming component 2 will cut the human skin during the process of cutting hair by the first hair trimming component 1.

[0067] exist Figure 3 and Figure 8 In the embodiment, the first movable blade 12 is provided with a first movable blade holder 3, the first movable blade holder 3 is provided with a first swinging groove 321, the swinging rod 8 is provided with a first swinging protrusion 81, and the first swinging protrusion 81 is inserted into the first swinging groove 321;

[0068] Among them, a plurality of first shaving channels 121 are provided on the first movable blade 12. When the first swinging protrusion 81 is inserted into the first swinging groove 321, the first swinging protrusion 81 pushes the first movable blade 12 to reciprocate laterally relative to the first fixed blade 11 through the first swinging groove 321, so that the first shaving channel 121 corresponds to or is staggered with one of the first beard inlet channels 111.

[0069] In this embodiment, the first movable knife holder 3 includes a mounting portion 31 and a driving portion 32 , the mounting portion 31 is inserted into the driving portion 32 and fixedly connected to the driving portion 32 , the first swinging groove 321 is provided in the driving portion 32 , and the mounting portion 31 is provided on the first movable knife blade 12 .

[0070] exist Figure 5 , Figure 8 and Fig.11 In the embodiment, the hair trimmer head also includes a support rod 4 and a first fixed knife holder 30, the first fixed knife blade 11 is fixedly connected to the first fixed knife holder 30, the support rod 4 is located between the first movable knife blade 12 and the first fixed knife holder 30, the support rod 4 pushes the first movable knife blade 12 to abut against the inner side of the first fixed knife blade 11, wherein the first fixed knife holder 30 is provided with a placement groove 302 for placing the support rod 4, and the placement groove 302 is used to position and place the support rod 4.

[0071] exist Fig. 9 , Fig.12 and Fig.14 In the embodiment, the hair trimmer head also includes a first elastic element 5 and a mounting seat 50. The first elastic element 5 is clamped between the first fixed blade holder 30 and the mounting seat 50. The swing rod 8 is rotatably connected to the mounting seat 50. The mounting seat 50 is slidably connected to the housing 10. The first elastic element 5 pushes the mounting seat 50 to slide relative to the housing 10 so that the swing rod 8 is close to or away from the first movable blade 12.

[0072] In this embodiment, the first fixed knife holder 30 is provided with an avoidance hole 301 and a first limit rod 303. After the first swing protrusion 81 passes through the avoidance hole 301, it can be inserted into the first swing groove 321; a slider 504 is provided on the mounting seat 50, and a slide groove 103 is provided on the outer shell 10. The slider 504 is inserted into the slide groove 103. When the slider 504 is inserted into the slide groove 103, the first elastic element 5 drives the mounting seat 50 to slide up and down along the slide groove 103 through the slider 504, so that the mounting seat 50 drives the first swing protrusion 81 to approach or move away from the first movable knife blade 12 through the swing rod 8, wherein the swing rod 8 drives the first swing protrusion 81 to approach the first movable knife blade 12, and can push the first movable knife blade 12 to abut against the first fixed knife blade 11.

[0073] exist Fig.10 and Fig.12In the embodiment, a limiting hole 503 is provided on the mounting seat 50 , and the first elastic element 5 is a first coil spring, one end of the first coil spring is inserted into the limiting hole 503 , and the other end of the first coil spring is sleeved on the first limiting rod 303 .

[0074] exist Figure 6 and Figure 8 In the embodiment, the second movable blade 22 is provided with a second movable blade holder 6, the second movable blade holder 6 is provided with a second swinging groove 61, the swinging rod 8 is provided with a second swinging protrusion 82, and the second swinging protrusion 82 is inserted into the second swinging groove 61;

[0075] Among them, a plurality of second shaving channels 222 are provided on the second movable blade 22. When the second swinging protrusion 82 is inserted into the second swinging groove 61, the second swinging protrusion 82 pushes the second movable blade 22 to reciprocate laterally relative to the second fixed blade 21 through the second swinging groove 61, so that the second shaving channels 222 correspond to one of the second beard inlet channels 212 or are staggered with each other.

[0076] In this embodiment, a positioning block 62 is provided on the second movable knife holder 6 , and a positioning hole 223 is provided on the second movable knife blade 22 . The positioning block 62 is inserted into the positioning hole 223 to achieve a fixed connection between the second movable knife holder 6 and the second movable knife blade 22 .

[0077] exist Figure 3 and Fig.13 In the embodiment, the hair trimmer head also includes a second movable knife holder 6, a second elastic element 7 and a second fixed knife holder 40, the second fixed knife blade 21 is fixedly connected to the second fixed knife holder 40, the second elastic element 7 is clamped between the second movable knife holder 6 and the housing 10, and the second elastic element 7 pushes the second movable knife blade 22 to abut against the second fixed knife holder 40 through the second movable knife holder 6.

[0078] In this embodiment, a second limiting rod 102 is provided on the wall of the accommodating cavity 101 of the outer shell 10, a third limiting rod is provided on the second movable knife holder 6, and the second elastic element 7 is a second coil spring. One end of the second coil spring is jacketed on the second limiting rod 102, and the other end of the second coil spring is jacketed on the third limiting rod.

[0079] exist Fig.10 In the figure, a first through hole 501 and a second through hole 502 are provided on the mounting seat 50, and the swing rod 8 is rotatably connected to the mounting seat 50 through a rotating shaft 60. When the swing rod 8 is rotatably connected to the mounting seat 50 through the rotating shaft 60, the first swing protrusion 81 passes through the first through hole 501, and the second swing protrusion 82 passes through the second through hole 502.

[0080] Embodiment 2

[0081] The utility model discloses an electric shaver, which also includes a hair trimmer head disclosed in the above embodiment. The driving mechanism on the electric shaver drives a swinging rod 8 to rotate relative to a mounting seat 50, so that the swinging rod 8 drives a first movable blade 12 to reciprocate laterally relative to a first fixed blade 11, and the swinging rod 8 drives a second movable blade 22 to reciprocate laterally relative to a second fixed blade 21, so that the electric shaver can trim hair on the skin of at least two different positions of a human body through the hair trimmer head.

[0082] The above is only an explanation of the best embodiment of the utility model, which cannot be understood as a limitation of the claims. The utility model is not limited to the above embodiments, and all changes made within the protection scope of the independent claims of the utility model are within the protection scope of the utility model.

Claims

1. Hair trimmer head, characterized in that include: A housing (10), wherein a receiving cavity (101) is provided on the housing (10); A first hair trimming component (1), the first hair trimming component (1) comprising a first fixed blade (11) and a first movable blade (12); A second hair trimming component (2), the second hair trimming component (2) comprising a second fixed blade (21) and a second movable blade (22), the shape of the second hair trimming component (2) being different from the shape of the first hair trimming component (1), so that the first hair trimming component (1) and the second hair trimming component (2) can fit the skin of different positions of the human body; A mounting seat (50), the mounting seat (50) being disposed in the accommodating cavity (101); A swing rod (8), the swing rod (8) is rotatably connected to the mounting seat (50); The first movable blade (12) and the second movable blade (22) are respectively movably arranged on the swing rod (8); when the swing rod (8) rotates relative to the mounting seat (50), the first movable blade (12) reciprocates laterally relative to the first fixed blade (11), and the second movable blade (22) reciprocates laterally relative to the second fixed blade (21).

2. The hair trimmer head according to claim 1, characterized in that: The first fixed blade (11) is provided with a plurality of first hair inlet channels (111), and the second fixed blade (21) is provided with a plurality of second hair inlet channels (212). The hair inlet direction of the first hair inlet channels (111) is different from the hair inlet direction of the second hair inlet channels (212).

3. The hair trimmer head according to claim 2, characterized in that: The first fixed knife blade (11) and the second fixed knife blade (21) are arranged in a staggered manner; one of the first beard inlet channel (111) and the second beard inlet channel (212) is an open beard inlet channel, and the other is a closed beard inlet channel.

4. The hair trimmer head according to claim 3, characterized in that: The first fixed blade (11) is provided with a plurality of first hair inlet holes, the first hair inlet holes being the first hair inlet channels (111), and the second fixed blade (21) is provided with a plurality of second hair inlet grooves, the second hair inlet grooves being the second hair inlet channels (212); And / or, at least part of the first hair inlet hole is located above the second hair inlet groove.

5. The hair trimmer head according to claim 2, characterized in that: A first movable blade (12) is provided with a first movable blade holder (3), a first swing groove (321) is provided on the first movable blade holder (3), a first swing protrusion (81) is provided on the swing rod (8), and the first swing protrusion (81) is inserted into the first swing groove (321); A plurality of first shaving channels (121) are provided on the first movable blade (12); when the first swinging protrusion (81) is inserted into the first swinging groove (321), the first swinging protrusion (81) pushes the first movable blade (12) to move back and forth relative to the first fixed blade (11) via the first swinging groove (321), so that the first shaving channel (121) corresponds to or is staggered with one of the first beard inlet channels (111).

6. The hair trimmer head according to claim 5, characterized in that: It also comprises a support rod (4) and a first fixed knife holder (30); the first fixed knife blade (11) is fixedly connected to the first fixed knife holder (30); the support rod (4) is located between the first movable knife blade (12) and the first fixed knife holder (30); the support rod (4) pushes the first movable knife blade (12) to abut against the inner side of the first fixed knife blade (11).

7. The hair trimmer head according to claim 6, characterized in that: The hair trimming assembly (1) further comprises a first elastic element (5) and a mounting seat (50), wherein the first elastic element (5) is clamped between the first fixed blade holder (30) and the mounting seat (50), the swing rod (8) is rotatably connected to the mounting seat (50), the mounting seat (50) is slidably connected to the housing (10), and the first elastic element (5) pushes the mounting seat (50) to slide relative to the housing (10), so that the swing rod (8) moves closer to or farther away from the first hair trimming assembly (1).

8. The hair trimmer head according to claim 2, characterized in that: A second movable blade holder (6) is provided on the second movable blade (22), a second swing groove (61) is provided on the second movable blade holder (6), a second swing protrusion (82) is provided on the swing rod (8), and the second swing protrusion (82) is inserted into the second swing groove (61); The second movable blade (22) is provided with a plurality of second shaving channels (222). When the second swinging protrusion (82) is inserted into the second swinging groove (61), the second swinging protrusion (82) pushes the second movable blade (22) to move back and forth relative to the second fixed blade (21) via the second swinging groove (61), so that the second shaving channels (222) correspond to or are staggered with one of the second beard inlet channels (212).

9. The hair trimmer head according to claim 1, characterized in that: The invention also comprises a second movable knife holder (6), a second elastic element (7) and a second fixed knife holder (40); the second fixed knife blade (21) is fixedly connected to the second fixed knife holder (40); the second elastic element (7) is clamped between the second movable knife holder (6) and the housing (10); and the second elastic element (7) pushes the second movable knife blade (22) to abut against the second fixed knife holder (40) through the second movable knife holder (6).

10. An electric shaver, characterized in that: A hair trimmer head comprising any one of claims 1 to 9.

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