Hair trimmer

Abstract

The utility model relates to a hair trimmer, which aims to improve the trimming efficiency and effect of the hair trimmer, and comprises a shell, a hair trimmer body and a driving device, at least three groups of hair trimming assemblies, wherein each group of hair trimming assembly comprises a fixed cutter blade and a movable cutter blade; the balance wheel is arranged in the containing cavity, and the movable cutter blades of each hair trimming assembly are arranged at intervals in the circumferential direction of the balance wheel; the swing rod is movably arranged on the balance wheel; an eccentric shaft is arranged on the driver; when the driver works, the eccentric shaft drives the swing wheel to rotate in a reciprocating mode through the swing rod. In the process that the swing rod drives the balance wheel to rotate in a reciprocating mode, the balance wheel drives all the movable cutter blades to move in a reciprocating mode relative to the corresponding fixed cutter blades.

Description

Technical Field

[0001] The utility model relates to a hair trimmer. Background Art

[0002] The applicant applied for a hair trimmer head in 2023, including a fixed blade installed on a blade head seat and a movable blade driven by a movable blade transmission frame. The above-mentioned single-blade hair trimmer head has a low trimming efficiency and requires repeated trimming to achieve the ideal trimming effect. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a hair trimmer to improve the trimming efficiency and effect of the hair trimmer.

[0004] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0005] A hair trimmer,

[0006] A housing, wherein a receiving cavity is provided on the housing;

[0007] At least three groups of hair trimming components, one group of hair trimming components forms a trimming direction consistent with the pushing trimming direction of the hair trimmer, and the remaining two groups of hair trimming components are respectively located on different sides thereof to form side trimming; each group of hair trimming components includes a fixed blade and a movable blade; and the head and tail ends of adjacent hair trimming components are in an inclined shape close to each other;

[0008] A balance wheel is arranged in the accommodating cavity, and the movable blades of each group of hair trimming components are arranged at intervals along the circumference of the balance wheel;

[0009] A pendulum rod, movably arranged on the balance wheel;

[0010] A driver, wherein an eccentric shaft is provided on the driver;

[0011] When the driver is working, the eccentric shaft drives the balance wheel to reciprocate through the swing rod; in the process of the swing rod driving the balance wheel to reciprocate, the balance wheel drives all the moving blades to reciprocate relative to their corresponding fixed blades.

[0012] Furthermore, a limiting groove is provided at one end of the swing rod, and the eccentric shaft is inserted into the limiting groove. When the driver is working, the eccentric shaft can slide along the limiting groove and push the swing rod to move through the wall of the limiting groove.

[0013] Furthermore, the driver includes a motor, a motor seat is provided on the motor, and the swing arm is rotatably connected to the motor seat;

[0014] And / or, the notch on the limiting groove is arranged laterally, and the limiting groove is connected vertically.

[0015] Furthermore, each set of hair trimming components also includes a transmission frame arranged on the movable blade, and a transmission rod is arranged between the transmission frame of each set of hair trimming components and the balance wheel. When the balance wheel is driven by the balance rod to rotate back and forth, the balance wheel drives the transmission frame to move through the transmission rod, so that the transmission frame of each set of hair trimming components drives the corresponding movable blade to reciprocate relative to the fixed blade of the hair trimming component.

[0016] Furthermore, a plurality of limiting channels are provided on the shell, the limiting channels are connected to the accommodating cavity, each limiting channel corresponds to each group of hair trimming components, one end of the transmission rod is provided on the balance wheel, and the other end of the transmission rod passes through the limiting channel and is movably connected to the transmission frame.

[0017] Furthermore, each set of hair trimming components includes a cutter head seat, which is rotatably connected to the shell, and the fixed cutter blade is provided with two or more bends, the fixed cutter blade is fixedly connected to the cutter head seat, and the movable cutter blade is movably arranged on the cutter head seat; in addition, the head head seat, the fixed cutter blade, and the movable cutter blade are beveled at an angle of 10-37 degrees so that the head and tail ends of adjacent hair trimming components are in a beveled shape close to each other.

[0018] Furthermore, a plurality of first slots are provided on the circumference of the balance wheel, and a transmission rod can be inserted into one of the first slots; and / or a second slot is provided at the bottom of the balance wheel, and the swing rod can be inserted into the second slot.

[0019] Furthermore, when a plurality of first slots are provided on the circumference of the balance wheel, the slots on the first slots are arranged laterally, and the first slots are connected vertically; when a second slot is provided at the bottom of the balance wheel, the slot opening of the second slot faces downward, and the second slot is connected horizontally.

[0020] Further, the balance wheel is rotationally connected to the housing; and / or the transmission rod is rotationally connected to the housing.

[0021] Furthermore, the hair trimmer also includes a battery and a circuit board, and the driver and the battery are electrically connected to the circuit board respectively.

[0022] Compared with the prior art, the above structural design has the following advantages:

[0023] In the present design, the hair trimmer includes at least three groups of hair trimming components, each group of hair trimming components includes a fixed blade and a movable blade, each group of hair trimming components can fit the skin of one part of the human body, and multiple groups of hair trimming components can fit the skin of multiple parts of the human body; when each group of hair trimming components can fit one part, two or more parts of the human body, and the hair trimmer has at least three groups of hair trimming components, the hair trimmer can fit multiple parts and multiple positions of the human body to achieve an improved hair trimming effect of the hair trimmer.

[0024] In this design, in order to realize the simultaneous movement of at least three groups of hair trimming components, the hair trimmer also includes a balance wheel, a swing rod, and a driver. When the driver is working, the driver drives the eccentric shaft to rotate, so that the eccentric shaft drives the balance wheel to reciprocate through the swing rod; in the process of the swing rod driving the balance wheel to reciprocate, the balance wheel drives all the moving blades to reciprocate relative to their corresponding fixed blades. In other words, when the hair trimmer is provided with a balance wheel, a swing rod, and a driver, at least three groups of hair trimming components can simultaneously fit multiple places and multiple positions of the human body to perform hair trimming, so as to achieve the hair trimming effect of the hair trimmer.

[0025] In the present design, one group of hair trimming components forms a trimming direction consistent with the promotion and trimming direction of the hair trimmer, and the remaining two groups of hair trimming components are respectively located on different sides thereof to form side trimming; each group of hair trimming components includes a fixed blade and a movable blade; and the head and tail ends of adjacent hair trimming components are in an inclined shape close to each other, and the movable blades of each group of hair trimming components are arranged at intervals along the circumference of the balance wheel; because the movable blades of each group of hair trimming components are arranged at intervals along the circumference of the balance wheel, the fixed blades of each group of hair trimming components are also arranged at intervals along the circumference of the balance wheel; when the fixed blades of each group of hair trimming components are also arranged at intervals along the circumference of the balance wheel, the hair trimmer can fit the human body to perform circular trimming of hair, and circular shaving can greatly improve the hair trimming effect of the hair trimmer, and the head and tail ends of adjacent hair trimming components are in an inclined shape close to each other, which improves the trimming effect of hair between adjacent hair trimming components.

[0026] In the present design, the hair trimmer includes at least three groups of hair trimming components. When the at least three groups of hair trimming components are arranged in a ring shape, the hair trimmer is moved forward and backward. After one group of hair trimming components trims hair, the remaining hair trimming components can also trim hair. In this structure, adjacent hair trimming components trim hair at the same position at different times, different angles, and different bends, so as to improve the trimming effect of hair between adjacent hair trimming components. In other words, the problem that the intersection between the hair trimming component in the middle and other hair trimming components is not easy to be trimmed in the prior art is solved.

[0027] In the present design, in addition, the head base, the fixed blade, and the front and rear ends of the moving blade are beveled at an angle of 10-37 degrees so that the front and rear ends of the adjacent hair trimming components are inclined and close to each other, the fixed blade has bends on both sides, and the middle position of the fixed blade has a bend, the bends on both sides of the fixed blade are different from the bends in the middle position of the fixed blade, and the bends on both sides of the fixed blade and the bends in the middle position of the fixed blade are respectively provided with a plurality of beard inlet channels. In this structure, the fixed blade trims the hair between two adjacent hair trimming components through multiple directions and multiple bends, that is, the problem that the hair trimming components are not easily trimmed in the prior art is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional diagram of the hair trimmer in the utility model;

[0029] Figure 2 It is a three-dimensional diagram of the hair trimmer of the utility model (omitted three groups of hair trimming components);

[0030] Figure 3 It is a three-dimensional diagram of the hair trimmer of the utility model (without the housing);

[0031] Figure 4 It is a stereoscopic diagram of the hair trimming assembly, the transmission rod, the swing wheel and the swing rod in the utility model;

[0032] Figure 5 It is a three-dimensional diagram of the transmission rod, the balance wheel and the swing rod in the utility model;

[0033] Figure 6 It is a top view of the driver and the motor base in the utility model;

[0034] Figure 7 It is a stereoscopic diagram of the hair trimming assembly, the transmission rod, the pendulum wheel, the pendulum rod and the driver in the utility model;

[0035] Figure 8 It is a top view of the hair trimming assembly of the utility model;

[0036] Fig. 9 This is the cross-sectional view at AA (enlarged);

[0037] Fig.10 This is a top view of the hair trimmer of the utility model. In the figure: 1, housing; 11, accommodating cavity; 12, limiting channel; 13, fourth through hole;

[0038] 2. Hair trimming assembly; 21. Fixed blade; 211. Hair inlet channel; 22. Moving blade; 221. Shaving channel; 222. Transmission frame; 2221. Third slot; 23. Blade seat; 231. Third through hole;

[0039] 3. Transmission rod; 31. First insertion rod; 32. Second insertion rod; 33. Fourth through hole;

[0040] 4. balance wheel; 41. first slot; 42. protrusion; 421. second slot; 43. third through hole;

[0041] 5. swing rod; 51. third plug rod; 52. limit groove; 53. second through hole;

[0042] 6. Driver; 61. Eccentric shaft; 611. Main shaft section; 612. Eccentric section;

[0043] 7. Motor seat; 71. First through hole;

[0044] 8. Battery; 9. Circuit board. DETAILED DESCRIPTION

[0045] The present invention is further described in detail below through specific implementation examples and in conjunction with the accompanying drawings:

[0046] 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 in the utility model; Figure 2 It is a three-dimensional diagram of the hair trimmer of the utility model (omitted three groups of hair trimming components); Figure 3 It is a three-dimensional diagram of the hair trimmer of the utility model (without the housing); Figure 4 It is a stereoscopic diagram of the hair trimming assembly, the transmission rod, the swing wheel and the swing rod in the utility model; Figure 5 It is a three-dimensional diagram of the transmission rod, the balance wheel and the swing rod in the utility model; Figure 6 It is a top view of the driver and the motor base in the utility model; Figure 7 It is a stereoscopic diagram of the hair trimming assembly, the transmission rod, the pendulum wheel, the pendulum rod and the driver in the utility model; Figure 8 It is a top view of the hair trimming assembly of the utility model; Fig. 9 This is the cross-sectional view at AA (enlarged); Fig.10 It is a top view of the hair trimmer of the utility model.

[0047] The hair trimmer comprises: a shell 1, on which a receiving cavity 11 is provided; at least three groups of hair trimming components 2, wherein one group of hair trimming components 2 forms a trimming direction consistent with the pushing trimming direction of the hair trimmer, and the remaining two groups of hair trimming components 2 are respectively located on different sides thereof to form side trimming; each group of hair trimming components 2 comprises a fixed blade 21 and a movable blade 22; and the head and tail ends of adjacent hair trimming components 2 are in an inclined shape close to each other; each group of hair trimming components 2 comprises a cutter head seat 23; in addition; the head and tail ends of the cutter head seat 23, the fixed blade 21, and the movable blade 22 are inclined The hair trimming components 2 are inclined at an angle of 10-37 degrees so that the head and tail ends of the adjacent hair trimming components 2 are inclined and close to each other; a balance wheel 4, the balance wheel 4 is arranged in the accommodating cavity 11, and the movable blades 22 of each group of hair trimming components 2 are arranged at intervals along the circumference of the balance wheel 4; a swing rod 5, movably arranged on the balance wheel 4; a driver 6, an eccentric shaft 61 is arranged on the driver 6; wherein, when the driver 6 is working, the eccentric shaft 61 drives the balance wheel 4 to reciprocate through the swing rod 5; in the process of the swing rod 5 driving the balance wheel 4 to reciprocate, the balance wheel 4 drives all the movable blades 22 to reciprocate relative to their corresponding fixed blades 21.

[0048] In this embodiment, when the movable blades 22 of each group of hair trimming components 2 are arranged at intervals along the circumference of the balance wheel 4 , the fixed blades 21 of each group of hair trimming components 2 are arranged at intervals along the circumference of the balance wheel 4 .

[0049] In this embodiment, at least three groups of hair trimming components 2 are arranged in a ring shape. When at least three groups of hair trimming components 2 are arranged in a ring shape, the hair trimmer can fit the human body in a ring shape to achieve a ring shape trimming of the human body's hair. More preferably, the hair trimmer includes at least three groups of hair trimming components 2. Fig.10 As can be seen in FIG, the hair trimmer includes five groups of hair trimming components 2. Figure 6 and Figure 7 In the embodiment, the eccentric shaft 61 includes a main shaft section 611 and an eccentric section 612, both of which are circular, and the interval between the middle position of the main shaft section 611 and the middle position of the eccentric section 612 is L, and L is not 0. The driver 6 includes a motor, and when the motor is working, the motor drives the eccentric shaft 61 to rotate. During the rotation of the eccentric shaft 61, the main shaft section 611 rotates around its own center position, and the eccentric section 612 rotates around the center position of the main shaft section 611. In this structure, the size of L controls the rotation radius of the eccentric section 612 relative to the main shaft section 611, that is, one of the factors of "controlling the horizontal movement range of the movable blade 22 relative to its corresponding fixed blade 21" includes the rotation radius of the eccentric section 612.

[0050] exist Figure 5 and Figure 6 In the embodiment, the hair trimmer further comprises a first rotating shaft, a motor seat 7 is provided on the motor, a first through hole 71 is provided on the motor seat 7, a second through hole 53 is provided on the swing rod 5, one end of the first rotating shaft is inserted into the first through hole 71, and the other end of the first rotating shaft is inserted into the second through hole 53, so as to realize the rotation connection between the swing rod 5 and the motor seat 7. One of the factors for "controlling the horizontal movement range of the movable blade 22 relative to its corresponding fixed blade 21" includes the spacing distance between the first through hole 71 and the eccentric section 612.

[0051] Since the first rotating shaft is arranged on the motor seat 7 and the motor seat 7 is fixedly connected to the driver 6, when the position of the driver 6 is determined, the position of the motor seat 7 is also determined accordingly. In other words, by arranging the swing rod 5 on the motor seat 7, the influencing factors between the swing rod 5 and the eccentric shaft 61 can be effectively reduced, that is, the dimensional accuracy between the swing rod 5 and the eccentric shaft 61 can be improved.

[0052] exist Figure 5 and Figure 7In the embodiment, a limiting groove 52 is provided at one end of the swing rod 5, and an eccentric shaft 61 is inserted into the limiting groove 52. When the driver 6 is working, the eccentric shaft 61 can slide along the limiting groove 52 and push the swing rod 5 to move through the wall of the limiting groove 52; wherein, the eccentric segment 612 controls the swing rod 5 to move a distance of 2L in the horizontal direction, and the interval distance between the first through hole 71 and the eccentric shaft 61 in the horizontal direction controls the swing amplitude of the swing rod 5. Preferably, the notch on the limiting groove 52 is arranged laterally, and the limiting groove 52 is through-through from top to bottom.

[0053] exist Figure 4 In the embodiment, each group of hair trimming components 2 further includes a transmission frame 222 disposed on the movable blade 22, and the movable blade 22 is driven by the transmission frame 222. A transmission rod 3 is disposed between the transmission frame 222 of each group of hair trimming components 2 and the pendulum 4. When the pendulum 5 drives the pendulum 4 to reciprocate, the pendulum 4 drives the transmission frame 222 to move through the transmission rod 3, so that the transmission frame 222 of each group of hair trimming components 2 drives the corresponding movable blade 22 to reciprocate relative to the fixed blade 21 of the group of hair trimming components 2. In this structure, the transmission rod 3 controls the spacing distance between the pendulum 4 and the hair trimming components 2 to avoid interference between adjacent hair trimming components 2.

[0054] Preferably, the transmission rod 3 is located above the balance wheel 4, and the swing rod 5 is located below the balance wheel 4. This structure prevents the movement path of the transmission rod 3 from interfering with the movement path of the swing rod 5.

[0055] In this embodiment, a third slot 2221 with an opening facing downward is provided on the transmission frame 222, and the third slot 2221 is horizontally penetrated; a first insertion rod 31 extending upward is provided at one end of the transmission rod 3, and the first insertion rod 31 is inserted in the third slot 2221, so that the transmission rod 3 drives the movable blade 22 to reciprocate relative to the fixed blade 21 through the transmission frame 222.

[0056] exist Figure 2 In the figure, a plurality of limiting channels 12 are provided on the shell 1, and the limiting channels 12 are communicated with the accommodating chamber 11, and each limiting channel 12 corresponds to each group of hair trimming components 2. One end of the transmission rod 3 is provided on the balance wheel 4, and the other end of the transmission rod 3 passes through the limiting channel 12 and is movably connected to the transmission frame 222.

[0057] When the first insertion rod 31 is inserted into the third slot 2221, at least part of the transmission frame 222 is inserted into the limiting channel 12, and the limiting channel 12 limits the horizontal movement range of the transmission frame 222, that is, the limiting channel 12 limits the reciprocating movement range of the movable blade 22 relative to the fixed blade 21 through the transmission frame 222.

[0058] exist Figure 2 and Figure 4In the embodiment, the hair trimmer also includes a plurality of second rotating shafts, each group of hair trimming components 2 includes a cutter head seat 23, the fixed cutter blade 21 is fixedly connected to the cutter head seat 23, and the movable cutter blade 22 is movably arranged on the cutter head seat 23; a third through hole 231 is arranged on the cutter head seat 23, and a fourth through hole 13 is arranged on the shell 1, one end of the second rotating shaft is inserted into the third through hole 231, and the other end of the second rotating shaft is inserted into the fourth through hole 13, so as to realize the rotational connection between the cutter head seat 23 and the shell 1.

[0059] In this embodiment, the fixed blade 21 is provided with two or more bends: Fig. 9 In the embodiment, the fixed blade 21 has bends on both sides and a bend in the middle of the fixed blade 21. The bends on both sides of the fixed blade 21 are different from the bend in the middle of the fixed blade 21. The bends on both sides of the fixed blade 21 and the bend in the middle of the fixed blade 21 are respectively provided with a plurality of beard inlet channels 211. Since the blade head seat 23 is rotatably connected to the housing 1, and the bends on both sides of the fixed blade 21 and the bend in the middle of the fixed blade 21, the spacing distance and orientation angle between the fixed blades 21 on adjacent hair trimming components 2 can be changed. In this structure, the fixed blade 21 trims the hair between two adjacent hair trimming components 2 by multiple orientations and multiple bends.

[0060] When at least three groups of hair trimming components 2 are arranged in a ring shape, the hair trimmer is moved forward and backward, and after one group of hair trimming components 2 trims the hair, the other group of hair trimming components 2 can also trim the hair. That is to say, adjacent hair trimming components 2 trim the hair at the same position at different times, different angles, and different bends, so as to trim the hair between two adjacent hair trimming components 2.

[0061] exist Figure 4 In the figure, a second plug rod 32 extending downward is provided on the transmission rod 3, and a plurality of first slots 41 are provided on the circumference of the balance wheel 4. A second plug rod 32 on the transmission rod 3 is inserted into one of the first slots 41 to enable a transmission rod 3 to be inserted into one of the first slots 41; wherein, when a plurality of first slots 41 are provided on the circumference of the balance wheel 4, the notch on the first slot 41 is arranged laterally, and the first slot 41 is connected vertically.

[0062] When a plurality of first slots 41 are provided on the circumference of the balance wheel 4, each transmission rod 3 extends outwardly in the direction of the opening of the first slot 41 to define the installation direction of each hair trimming component 2 on the hair trimmer. In this structure, when the first slot 41 defines the installation direction of each hair trimming component 2 on the hair trimmer, the hair feed directions of adjacent hair trimming components 2 are different, so as to improve the hair trimming effect between adjacent hair trimming components.

[0063] exist Figure 4In the embodiment, the swing rod 5 is provided with a third insertion rod 51 extending upward, the bottom of the balance wheel 4 is provided with a second slot 421, and the third insertion rod 51 is inserted into the second slot 421, so that the swing rod 5 is inserted into the second slot 421; wherein, the bottom of the balance wheel 4 is provided with two protrusions 42 extending downward, and the second slot 421 is located between the two protrusions 42, that is, when the bottom of the balance wheel 4 is provided with the second slot 421, the notch opening of the second slot 421 faces downward, and the second slot 421 is horizontally penetrated. In this structure, the second slot 421 is provided at the bottom of the balance wheel 4, which can not only avoid interference between the swing rod 5 and the transmission rod 3, but also the horizontally penetrated second slot 421 provides horizontal space for the movement of the third insertion rod 51.

[0064] exist Figure 5 In the embodiment, the hair trimmer further comprises a third rotating shaft, a third through hole 43 is provided on the balance wheel 4, one end of the third rotating shaft is inserted into the housing 1, and the other end of the third rotating shaft is inserted into the third through hole 43, so as to realize the rotational connection between the balance wheel 4 and the housing 1.

[0065] exist Figure 5 In the embodiment, the hair trimmer further comprises a fourth rotating shaft, a fourth through hole 33 is provided on the transmission rod, one end of the fourth rotating shaft is inserted into the housing 1, and the other end of the fourth rotating shaft is inserted into the fourth through hole 33, so as to realize the rotational connection between the transmission rod 3 and the housing 1.

[0066] exist Figure 3 In the embodiment, the hair trimmer further comprises a battery 8 and a circuit board 9. The driver 6 and the battery 8 are electrically connected to the circuit board 9 respectively. When the circuit board 9 controls the electrical connection between the driver 6 and the battery 8, the battery 8 supplies power to the motor. After the motor receives the electric energy from the battery 8, the motor drives the swing rod 5 to reciprocate through the eccentric shaft 61, so that the swing rod 5 drives the balance wheel 4 to reciprocate. In the process of the swing rod 5 driving the balance wheel 4 to reciprocate, the balance wheel 4 drives the transmission frame 222 to reciprocate through the transmission rod 3, so that the transmission frame 222 drives the movable blade 22 to reciprocate relative to the fixed blade. When the circuit board 9 disconnects the electrical connection between the driver 6 and the battery 8, the motor stops working.

[0067] exist Figure 4 , Figure 8 and Fig. 9 In the embodiment, a plurality of beard inlet channels 211 are arranged on the fixed blade 21, and a plurality of shaving channels 221 are arranged on the movable blade 22; wherein, two or more bends are arranged on the fixed blade 21, and the plurality of beard inlet channels 211 are arranged at bends at different positions, that is, the fixed blade 21 fits different positions of the human body through two or more bends.

[0068] In this embodiment, the movable blade 22 is attached to the inner wall of the fixed blade 21, and the movable blade 2 has a working state and a non-working state. When the movable blade 2 is in the non-working state, hair can enter the shaving channel 221 through the beard inlet channel 211; when the movable blade 2 is in the working state, the movable blade 2 cuts the hair entering the shaving channel 221 through the beard inlet channel 211. The transmission frame 222 drives the movable blade 22 to reciprocate relative to the fixed blade to realize the switching of the movable blade 2 between the working state and the non-working state; wherein, when the shaving channel 221 corresponds to the beard inlet channel 211, the movable blade 2 is in the non-working state; when the shaving channel 221 and the beard inlet channel 211 are staggered, the movable blade 2 is in the working state.

[0069] In the utility model, the hair trimmer can be an electric shaver; the hair trimmer can also be a hair clipper.

[0070] 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. A hair trimmer, characterized in that include: A housing (1), wherein the housing (1) is provided with a receiving cavity (11); At least three groups of hair trimming components (2), one group of hair trimming components (2) forms a trimming direction consistent with the pushing trimming direction of the hair trimmer, and the remaining two groups of hair trimming components (2) are respectively located on different sides thereof to form side trimming; each group of hair trimming components (2) comprises a fixed blade (21) and a movable blade (22); and the head and tail ends of adjacent hair trimming components (2) are in an inclined shape close to each other; A balance wheel (4), the balance wheel (4) being arranged in the accommodating cavity (11), and the movable blades (22) of each group of hair trimming components (2) being arranged at intervals along the circumference of the balance wheel (4); A pendulum rod (5) movably disposed on the balance wheel (4); A driver (6), wherein an eccentric shaft (61) is provided on the driver (6); When the driver (6) is working, the eccentric shaft (61) drives the balance wheel (4) to rotate back and forth via the swing rod (5); in the process of the swing rod (5) driving the balance wheel (4) to rotate back and forth, the balance wheel (4) drives all the moving blades (22) to reciprocate relative to their corresponding fixed blades (21).

2. The hair trimmer according to claim 1, characterized in that One end of the swing rod (5) is provided with a limiting groove (52), and the eccentric shaft (61) is inserted into the limiting groove (52). When the driver (6) is working, the eccentric shaft (61) can slide along the limiting groove (52) and push the swing rod (5) to move through the wall of the limiting groove (52).

3. The hair trimmer according to claim 2, characterized in that The driver (6) comprises a motor, a motor seat (7) is provided on the motor, and the swing rod (5) is rotatably connected to the motor seat (7); And / or, the notch on the limiting groove (52) is arranged laterally, and the limiting groove (52) is connected vertically.

4. The hair trimmer according to claim 1, characterized in that: Each set of hair trimming components (2) further comprises a transmission frame (222) arranged on the movable blade (22); a transmission rod (3) is arranged between the transmission frame (222) of each set of hair trimming components (2) and the pendulum wheel (4); when the pendulum wheel (4) is driven by the pendulum rod (5) to rotate back and forth, the pendulum wheel (4) drives the transmission frame (222) to move via the transmission rod (3), so that the transmission frame (222) of each set of hair trimming components (2) drives the corresponding movable blade (22) to reciprocate relative to the fixed blade (21) of the set of hair trimming components (2).

5. The hair trimmer according to claim 4, characterized in that A plurality of limiting channels (12) are provided on the housing (1), the limiting channels (12) being in communication with the accommodating chamber (11), each limiting channel (12) corresponding to each group of hair trimming components (2), one end of the transmission rod (3) being arranged on the balance wheel (4), and the other end of the transmission rod (3) passing through the limiting channel (12) and then being movably connected to the transmission frame (222).

6. The hair trimmer according to claim 5, characterized in that Each set of hair trimming components (2) comprises a cutter head seat (23), the cutter head seat (23) being rotatably connected to the housing (1), the fixed cutter blade (21) being fixedly connected to the cutter head seat (23), and the movable cutter blade (22) being movably arranged on the cutter head seat (23); in addition, the head and tail ends of the cutter head seat (23), the fixed cutter blade (21), and the movable cutter blade (22) are beveled at an angle of 10-37 degrees so that the head and tail ends of adjacent hair trimming components (2) are in a beveled shape close to each other.

7. The hair trimmer according to claim 4, characterized in that A plurality of first slots (41) are provided on the circumference of the balance wheel (4), and a transmission rod (3) can be inserted into one of the first slots (41); And / or, a second slot (421) is provided at the bottom of the balance wheel (4), and the pendulum rod (5) can be inserted into the second slot (421).

8. The hair trimmer according to claim 7, characterized in that When a plurality of first slots (41) are provided on the circumference of the balance wheel (4), the notches on the first slots (41) are arranged laterally, and the first slots (41) are connected vertically; When the second slot (421) is provided at the bottom of the balance wheel (4), the notch opening of the second slot (421) faces downward, and the second slot (421) is horizontally connected.

9. The hair trimmer according to claim 4, characterized in that The balance wheel (4) is rotationally connected to the housing (1); and / or the transmission rod (3) is rotationally connected to the housing (1).

10. The hair trimmer according to claim 1, characterized in that The hair trimmer also includes a battery (8) and a circuit board (9), and the driver (6) and the battery (8) are electrically connected to the circuit board (9) respectively.

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