Hair scissors

Abstract

The utility model relates to hair scissors which comprise a machine body, a movable blade driving mechanism and a main machine head, the main machine head is provided with a static blade, a static blade installation base used for installing the static blade, a movable blade and a movable blade installation base used for installing the movable blade and capable of driving the movable blade to swing synchronously. The movable blade and the static blade are both of an annular structure, cutter teeth are arranged on inner rings of the movable blade and the static blade, the movable blade and the static blade are matched to cut off hair, the movable blade driving mechanism comprises a transmission gear rotationally installed on the machine body or the main machine head and a plurality of first output gears with the same rotating speed, and the transmission gear is in linkage with an output shaft of the motor. A plurality of first output gears are directly or indirectly meshed with the transmission gear, each first output gear is provided with an eccentric part deviating from the rotation center of the first output gear, and each eccentric part is inserted into the corresponding sliding groove in the movable blade installation base, so that the movable blade can be driven to swing in a reciprocating mode. The movable cutter can be stably driven to swing back and forth through the eccentric parts.

Description

Technical Field

[0001] The utility model relates to the technical field of hair clippers, in particular to a hair clipper. Background Art

[0002] A hair trimmer is disclosed in CN2260975U, which includes a stationary blade, a moving blade, a stationary blade fixing seat, a moving blade fixing seat, a moving blade driving mechanism, and a main housing. The moving blade is installed on the moving blade fixing seat, and the stationary blade is installed on the stationary blade fixing seat. Both the moving blade and the stationary blade are of annular structures, and both are provided with tooth portions. The tooth portions are teeth extending inward along the moving blade and the stationary blade respectively. The moving blade driving mechanism drives the moving blade to rotate to cut hair. The moving blade driving mechanism includes a motor and a swing rod. One end of the swing rod extends into a groove of the moving blade fixing seat. A fulcrum in the middle position of the swing rod is movable relative to the main housing. The shaft end of the motor is connected with an eccentric member eccentrically arranged with respect to the axis of the motor. A chute for the eccentric member to extend into is provided on the swing rod. The eccentric member extends into this chute. The eccentric movement of the eccentric member drives the swing rod to make a swinging movement, so that the moving blade swings back and forth and cooperates with the stationary blade to shave close to the head. In this structure, only one eccentric member drives the moving blade, and it is not stable enough when driving the moving blade to swing and is prone to shaking. Content of the Utility Model

[0003] Purpose of the utility model: In order to overcome the defects of the prior art, the utility model provides a hair clipper, and a plurality of eccentric members can stably drive the moving blade to swing back and forth.

[0004] Technical solution of the utility model: A hair clipper includes a body, a moving blade driving mechanism, and a main head. The main head has a stationary blade, a stationary blade mounting seat for mounting the stationary blade, a moving blade, and a moving blade mounting seat for mounting the moving blade and capable of driving the moving blade to swing synchronously. Both the moving blade and the stationary blade are of annular structures, and tooth portions are provided on the inner circles. The moving blade and the stationary blade cooperate to cut hair. The moving blade driving mechanism includes a transmission gear rotatably installed on the body or the main head and a plurality of output gears I with the same rotation speed. The transmission gear is linked with the output shaft of the motor. The plurality of output gears I are directly or indirectly engaged with the transmission gear. An eccentric member deviating from the rotation center is provided on each output gear I. Each eccentric member is inserted into the respective chute on the moving blade mounting seat, so as to drive the moving blade to make a reciprocating swing.

[0005] By adopting the above technical solution, the transmission gear is used to drive the plurality of output gears I to rotate synchronously, and drive the eccentric members to move in the chutes on the moving blade mounting seat, so that the moving blade swings back and forth and cooperates with the stationary blade to shave close to the head. Through the corresponding cooperation of the plurality of eccentric members and the plurality of chutes, the moving blade can be stably driven to swing back and forth with small vibration.

[0006] Preferably, the main head has a main housing, the stationary blade mounting seat is mounted on the main housing, the center of the moving blade mounting seat is rotationally connected to the main housing via a support shaft, and an elastic member I for applying an elastic thrust to the moving blade mounting seat in the direction of the stationary blade is provided between the bottom surface of the main housing and the moving blade mounting seat. There are a plurality of elastic members I, and they act on the outer periphery of the moving blade mounting seat in the circumferential direction. A through hole corresponding to the chute is provided on the bottom surface of the main housing. By abutting a plurality of elastic members I against the outer periphery of the moving blade mounting seat, the moving blade mounting seat is uniformly stressed and not easily tilted to one side, so that the moving blade can be well abutted and fitted with the stationary blade.

[0007] Preferably, the transmission gear is mounted on the machine body, and further includes a spare head I that can replace the main head. The spare head I has a stationary cutter head I, a stationary cutter head mounting seat I for mounting the stationary cutter head I, a moving cutter head I, and a moving cutter head mounting seat I for mounting the moving cutter head I and capable of driving the moving cutter head I to rotate synchronously. The center of the transmission gear is connected to the moving cutter head mounting seat I via a transmission member. The transmission member connects the transmission gear and the moving cutter head mounting seat I, so that the two rotate synchronously, and can drive the moving cutter head I on the moving cutter head mounting seat I to continuously rotate.

[0008] Preferably, a plurality of output gears I are the same gears and have a higher rotational speed than the transmission gear. This meets the requirement that the rotational speed of the annular moving blade is higher than that of the moving cutter head I, and avoids excessive load on the motor.

[0009] Preferably, the transmission gear is mounted on the machine body, and further includes a spare head II that can replace the main head. The spare head II has a plurality of cutter heads, and each cutter head has a stationary cutter head II, a stationary cutter head mounting seat II for mounting the stationary cutter head II, a moving cutter head II, and a moving cutter head mounting seat II for mounting the moving cutter head II and capable of driving the moving cutter head II to rotate synchronously. It also includes a plurality of output gears II linked to the transmission gear. The center of each output gear II is connected to each moving cutter head mounting seat II via a transmission shaft I. It can also be equipped with a plurality of cutter heads. The transmission gear drives the plurality of output gears II to rotate synchronously. The transmission shaft I connects the output gears II and each moving cutter head mounting seat II, so that the two rotate synchronously, and the plurality of output gears II can drive each moving cutter head II to continuously rotate.

[0010] Preferably, a plurality of output gears II are the same gears and have the same rotational speed, and the rotational speed is lower than that of the output gears I.

[0011] Preferably, a driven gear is further provided on the spare head II. A plurality of output gears II are rotatably mounted on the spare head II and directly or indirectly engage with the outer periphery of the driven gear. The driven gear is also connected to the lower transmission gear via a linkage shaft and rotates synchronously. The driven gear is provided on the head and the transmission gear is provided on the machine body. The two are designed with upper and lower layers, which is convenient for driving a plurality of output gears II.

[0012] Preferably, the plurality of cutter heads include a central cutter head and several outer cutter heads distributed around the central cutter head. The centers of the output gears II are connected to the moving cutter head mounting seats II of their respective outer cutter heads through the transmission shaft I, and the center of the driven gear is also connected to the moving cutter head mounting seat II of the central cutter head through the transmission shaft II. The driven gear has the same rotational speed as each of the output gears II. This facilitates the transmission to multiple moving cutter heads II and has high synchronism.

[0013] Preferably, the above-mentioned stationary cutter head is a cutter net, and the moving cutter head is a cutter disc. The center of the cutter net has a cutter holder mounted on the moving cutter head mounting seat, and an elastic member II for applying an elastic thrust to the cutter disc in the direction of the cutter net is provided between the cutter holder and the corresponding moving cutter head mounting seat. The cutter holder is rotatably sleeved outside the central column of the cutter net. Through the elastic member II, the cutter disc can be well abutted and fitted with the cutter net.

[0014] Preferably, the transmission gear and the output gear I are respectively rotatably mounted in the accommodation cavity on the machine body through a rotating shaft; the machine head and the machine body are detachably connected. This facilitates the replacement of the machine head. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the specific embodiment 1 of the present utility model;

[0016] Figure 2 It is one of the internal structural diagrams of the specific embodiment 1 of the present utility model;

[0017] Figure 3 It is the other internal structural diagram of the specific embodiment 1 of the present utility model;

[0018] Figure 4 It is a split view of the main machine head and the machine body in the specific embodiment 1 of the present utility model;

[0019] Figure 5 It is an exploded view of the main machine head in the specific embodiment 1 of the present utility model;

[0020] Figure 6 It is a structural diagram of one side of the bottom surface of the main machine head in the specific embodiment 1 of the present utility model;

[0021] Figure 7 It is an exploded view of the machine body in the specific embodiment 1 of the present utility model;

[0022] Figure 8 It is a structural diagram of the specific embodiment 2 of the present utility model;

[0023] Figure 9 It is one of the internal structural diagrams of the specific embodiment 2 of the present utility model;

[0024] Figure 10 It is the other internal structural diagram of the specific embodiment 2 of the present utility model;

[0025] Figure 11 Explosion diagram of Specific Embodiment 2 of the present utility model;

[0026] Figure 12 Structural diagram of one side of the bottom surface of the spare machine head one in Specific Embodiment 2 of the present utility model;

[0027] Figure 13 Structural diagram of the transmission member in Specific Embodiment 2 of the present utility model;

[0028] Figure 14 Separation diagram of the cutter net and the cutter blade in the specific embodiment of the present utility model;

[0029] Figure 15 Separation diagram of the spare machine head two and the fuselage in Specific Embodiment 3 of the present utility model;

[0030] Figure 16 Internal structural diagram of Specific Embodiment 3 of the present utility model;

[0031] Figure 17 Internal structural diagram of the spare machine head two in Specific Embodiment 3 of the present utility model;

[0032] Figure 18 Separation diagram of the transmission gear and the driven gear in Specific Embodiment 3 of the present utility model;

[0033] Figure 19 Engagement transmission diagram of the driven gear and the output gear two in Specific Embodiment 3 of the present utility model.

[0034] In the figure: fuselage A, accommodation cavity A1, moving cutter drive mechanism B, main machine head C, static cutter blade 1, static cutter blade mounting seat 2, moving cutter blade 3, moving cutter blade mounting seat 4, sliding groove 41, main housing 5, through port 51, cutter teeth D, transmission gear B1, output gear one B2, motor B3, eccentric member B4, support shaft 6, elastic member one 7, rotating shaft 8, driving gear 9;

[0035] Spare machine head one C', static cutter head one 1', static cutter head mounting seat one 2', moving cutter head one 3', moving cutter head mounting seat one 4', transmission member 5', transmission groove B11;

[0036] Spare machine head two C'', central cutter head 1a'', outer ring cutter head 1b'', static cutter head two 1'', static cutter head mounting seat two 2'', moving cutter head two 3'', moving cutter head mounting seat two 4'', output gear two B5, transmission shaft one 5'', driven gear 6'', linkage shaft 7'', transmission shaft two 8'';

[0037] Cutter holder 31', elastic member two 6', central column 11'. Specific embodiments

[0038] The technical solution in this embodiment will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0039] As Figure 1-7 shown: In the specific embodiment 1 of the present utility model, a first type of machine head is installed. A hair clipper includes a body A, a moving blade driving mechanism B, and a main machine head C. The main machine head C has a stationary blade 1, a stationary blade mounting seat 2 for mounting the stationary blade, a moving blade 3, and a moving blade mounting seat 4 for mounting the moving blade and capable of driving the moving blade to swing synchronously. The moving blade 3 and the stationary blade 1 are both annular structures, and both have cutter teeth D on the inner circle. The moving blade 3 cooperates with the stationary blade 1 to cut hair. The moving blade driving mechanism B includes a transmission gear B1 rotatably mounted on the body A or the main machine head C and a plurality of output gears B2 with the same rotation speed. The transmission gear B1 is linked to the output shaft of the motor B3. The plurality of output gears B2 are directly or indirectly engaged with the transmission gear B1. The plurality of output gears are circumferentially distributed. Each output gear B2 is provided with an eccentric member B4 deviating from its rotation center. The eccentric member is fixed or integrally provided on the output gear. Each eccentric member B4 is inserted into the respective chute 41 on the moving blade mounting seat 4, so as to drive the moving blade 3 to perform a reciprocating swing. A plurality of the chutes are directly or indirectly provided on the moving blade mounting seat. The plurality of output gears B2 are the same gears and are directly engaged with the transmission gear, so that the rotation speeds of the output gears are the same. Of course, the plurality of output gears B2 and the transmission gear can also be driven through the same number of gears, so that the rotation speeds of the output gears are the same. A driving gear 9 coaxially connected to the output shaft of the motor is also provided. The driving gear is directly or indirectly engaged with the transmission gear.

[0040] Specifically, the main machine head C has a main housing 5. The stationary blade mounting seat 2 is mounted on the main housing 5. The center of the moving blade mounting seat 4 is rotatably connected to the main housing 5 through a support shaft 6. An elastic member 7 for applying an elastic thrust to the moving blade mounting seat 4 in the direction of the stationary blade 1 is provided between the bottom surface of the main housing 5 and the bottom surface of the moving blade mounting seat 4. The elastic member 7 has a plurality of them and acts on the outer periphery of the moving blade mounting seat 4 in the circumferential direction. A through hole 51 corresponding to the chute 41 is provided on the bottom surface of the main housing 5.

[0041] During the assembly of the main machine head, the stationary blade 1 is installed on the stationary blade mounting seat 2, the moving blade 3 is installed on the moving blade mounting seat 4, and the moving blade 3 is located below the stationary blade 1. The stationary blade mounting seat 2 is installed on the main housing 5 by screws or buckles, and the moving blade mounting seat 4 is rotatably connected to the main housing 5. And the elastic member 7 is abutted between the moving blade mounting seat 4 and the main housing 5;

[0042] The fuselage can be composed of an upper cover and a lower cover connected detachably to form an accommodation cavity A1. The transmission gear B1 and the first output gear B2 are respectively rotatably installed on the lower cover via a rotating shaft 8, and then the upper cover is installed.

[0043] After that, the main machine head is installed on the fuselage, and each eccentric part B4 is inserted into the respective sliding grooves 41 on the moving blade mounting seat 4.

[0044] During use, the motor B3 of the moving blade driving mechanism drives the transmission gear B1. The transmission gear B1 drives multiple first output gears B2 to rotate synchronously, and drives the eccentric parts B4 to move in the sliding grooves 41, so that the moving blade mounting seat 4 drives the moving blade 3 to swing back and forth, and cooperate with the static blade 1 to shave the head in contact with the head. Through the corresponding cooperation of multiple eccentric parts B4 and multiple sliding grooves 41, the moving blade 3 can be stably driven to swing back and forth with small vibration.

[0045] The above-mentioned transmission gear B1 is generally installed on the fuselage A, which is convenient for driving a new machine head to perform haircutting operations after replacing other machine heads. Specifically, the transmission gear B1 and the first output gear B2 are respectively rotatably installed in the accommodation cavity A1 on the fuselage via a rotating shaft 8; the main machine head and the fuselage are detachably connected, which can be a snap connection or a magnetic attraction connection.

[0046] As Figure 8-14 shown: In the second specific embodiment of the present invention, a second machine head can be installed. A haircutting scissors includes a fuselage A, a moving blade driving mechanism B, and a first spare machine head C' that can replace the main machine head C. The moving blade driving mechanism B includes a transmission gear B1 rotatably installed on the fuselage A via a rotating shaft 8 and multiple first output gears B2 with the same rotational speed. The first output gears B2 can also be only installed on the main machine head C. The transmission gear B1 is linked with the output shaft of the motor B3, and multiple first output gears B2 are directly or indirectly engaged with the transmission gear B1. The machine head and the fuselage are detachably connected;

[0047] The described spare head C' has a stationary cutter head 1', a stationary cutter head mounting seat 2' for mounting the stationary cutter head 1', a moving cutter head 3', and a moving cutter head mounting seat 4' for mounting the moving cutter head 3' and capable of driving the moving cutter head 3' to rotate synchronously. The center of the transmission gear B1 is connected to the moving cutter head mounting seat 4' through a transmission member 5'. The transmission member 5' is integrally provided on the center of the transmission gear B1, or a transmission groove B11 for inserting the transmission member 5' is provided. The transmission member 5' is an integral shaft member, and the two end shafts of a single shaft member are respectively clamped on the center of the transmission gear B1 and the moving cutter head mounting seat 4'; or the transmission member 5' is a segmented shaft member, and the two shaft segments are respectively clamped on the center of the transmission gear B1 and the moving cutter head mounting seat 4', and an elastic member is also provided between the two shaft segments. The multiple output gears B2 are the same gears and rotate at a speed higher than that of the transmission gear B1. When the output gear B2 is directly meshed with the transmission gear, the number of teeth of the transmission gear is more than that of the output gear B2, so that the rotation speed of the output gear B2 is higher than that of the transmission gear; of course, the rotation speed of the output gear B2 can also be higher than that of the transmission gear through a speed reducer.

[0048] Specifically, the stationary cutter head 1' is a cutter net, the moving cutter head 3' is a cutter disc. The center of the cutter net has a tool holder 31' mounted on the moving cutter head mounting seat. The tool holder 31' is fixed or integrally provided on the cutter net. The tool holder 31' is slidably matched with the moving cutter head mounting seat and rotates synchronously. An elastic member two 6' for applying an elastic thrust to the cutter disc in the direction of the cutter net is provided between the tool holder 31' and the corresponding moving cutter head mounting seat. The tool holder 31' is rotatably sleeved outside the central column 11' of the cutter net. The central column 11' is fixed or integrally provided on the cutter net. The tool holder 31' has a shaft hole for the central column 11' to pass through.

[0049] The spare head C' can be used to replace the main head with eccentric drive in Embodiment 1.

[0050] During use, the motor B3 of the moving cutter drive mechanism drives the transmission gear B1, and the transmission member 5' connects the transmission gear B1 and the moving cutter head mounting seat 4', so that the two rotate synchronously, and can drive the moving cutter head 3' on the moving cutter head mounting seat 4' to continuously rotate.

[0051] As Figure 14-19 shown: In the specific embodiment 3 of the present invention, a third head can be installed. A hair clipper includes a body A, a moving cutter drive mechanism B, and a spare head C'' capable of replacing the main head C. The moving cutter drive mechanism B includes a transmission gear B1 rotatably mounted on the body A through a rotating shaft 8 and multiple output gears B2 with the same rotation speed. The output gears B2 can also be only mounted on the main head C. The transmission gear B1 is linked to the output shaft of the motor B3. The multiple output gears B2 are directly or indirectly engaged with the transmission gear B1. The head C'' is detachably connected to the body;

[0052] The described spare head two C'' has multiple cutter heads, each cutter head having a stationary cutter head two 1'', a stationary cutter head mounting seat two 2'' for mounting the stationary cutter head two, a moving cutter head two 3'', and a moving cutter head mounting seat two 4'' for mounting the moving cutter head two and capable of driving the moving cutter head two to rotate synchronously. It also includes multiple output gears two B5 linked to the transmission gear B1. The center of each output gear two B5 is connected to each automatic cutter head mounting seat two 4'' via a transmission shaft one 5'' to achieve synchronous rotation. The multiple output gears two B5 are the same gears and have the same rotational speed, which is lower than the rotational speed of the output gear one B2.

[0053] Specifically, the spare head two C'' is also provided with a driven gear 6''. The multiple output gears two B5 are rotatably mounted on the spare head two C'' and directly or indirectly engage with the outer periphery of the driven gear 6''. The driven gear 6'' is also connected to the transmission gear B1 via a linkage shaft 7'' and rotates synchronously. The linkage shaft 7'' is integrally provided at the center of the transmission gear B1 or there is a transmission groove B11 for the insertion of the linkage shaft 7''. Of course, the multiple output gears two can also be directly meshed with the transmission gear.

[0054] Specifically, the multiple cutter heads have a central cutter head 1a'' and several outer cutter heads 1b'' distributed around the central cutter head. The center of each output gear two B5 is connected to the moving cutter head mounting seat two 4'' of its respective outer cutter head via a transmission shaft one 5'' to achieve synchronous rotation. The center of the driven gear 6'' is also connected to the moving cutter head mounting seat two 4'' of the central cutter head via a transmission shaft two 8'' to achieve synchronous rotation. The rotational speed of the driven gear 6'' is the same as that of each output gear two B5.

[0055] Specifically, the stationary cutter head two is a cutter net, and the moving cutter head two is a cutter disc. The center of the cutter net has a tool holder 31' mounted on the moving cutter head mounting seat. The tool holder 31' is fixed or integrally provided on the cutter net. An elastic member two 6' is provided between the tool holder 31' and the corresponding moving cutter head mounting seat to apply an elastic thrust to the cutter disc towards the cutter net direction. The tool holder 31' is rotatably sleeved outside the central column 11' of the cutter net.

[0056] The eccentrically driven main head in Embodiment 1 can be replaced with the spare head two.

[0057] During use, the motor B3 of the moving knife driving mechanism drives the transmission gear B1. The driven gear 6'' and the transmission gear B1 are connected by the linkage shaft 7'', so that the two rotate synchronously. Since a plurality of output gears two B5 are directly or indirectly engaged with the outer periphery of the driven gear 6'', a plurality of output gears two B5 are driven to rotate synchronously. The output gear two B5 is connected to the moving knife head mounting seat two 4'' of the outer ring knife head by the transmission shaft one 5'' to achieve synchronous rotation. The driven gear 6'' is connected to the moving knife head mounting seat two 4'' of the center knife head by the transmission shaft two 8'' to achieve synchronous rotation. Thus, the moving knife heads two 3'' on a plurality of moving knife head mounting seats two 4'' can be driven to rotate synchronously.

[0058] The above-mentioned motor B3 is installed in the fuselage, and the elastic member can be a spring or a spring sheet.

[0059] The fuselage structures in the above-mentioned embodiments are the same, while the nose structures are different and can be replaced with each other.

[0060] It should be noted that in the present invention, descriptions such as "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. In the description of the present invention, the meanings of "several" and "a plurality of" are at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0061] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "coupled", "connected", "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium. It can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Claims

1. A hair clipper, comprising a body (A), a moving blade driving mechanism (B) and a main head (C). The main head (C) has a stationary blade (1), a stationary blade mounting seat (2) for mounting the stationary blade, a moving blade (3), and a moving blade mounting seat (4) for mounting the moving blade and capable of driving the moving blade to swing synchronously. The moving blade (3) and the stationary blade (1) are both annular structures, and cutting teeth (D) are provided on the inner circles of both. The moving blade (3) cooperates with the stationary blade (1) to cut hair, and is characterized in that: The moving blade driving mechanism (B) described above includes a transmission gear (B1) rotatably mounted on the fuselage (A) or the main head (C), and a plurality of output gears one (B2) with the same rotational speed. The transmission gear (B1) is linked to the output shaft of the motor (B3). The plurality of output gears one (B2) are directly or indirectly engaged with the transmission gear (B1). An eccentric member (B4) offset from the center of rotation is provided on each output gear one (B2). Each eccentric member (B4) is inserted into the respective chute (41) on the moving blade mounting seat (4), so as to drive the moving blade (3) to swing reciprocally.

2. A hair clipper according to claim 1, characterized in that: The main head (C) has a main housing (5). The stationary blade mounting seat (2) is mounted on the main housing (5). The center of the moving blade mounting seat (4) is rotatably connected to the main housing (5) via a support shaft (6). An elastic member one (7) that applies an elastic thrust to the moving blade mounting seat (4) in the direction of the stationary blade (1) is provided between the bottom surface of the main housing (5) and the bottom surface of the moving blade mounting seat (4). The elastic member one (7) has a plurality of members and acts on the outer periphery of the moving blade mounting seat (4) in the circumferential direction. A through hole (51) corresponding to the chute (41) is provided on the bottom surface of the main housing (5).

3. A hair clipper according to claim 1, characterized in that: The transmission gear (B1) is mounted on the fuselage (A). It further includes a spare head one (C') that can replace the main head (C). The spare head one (C') has a stationary cutter head one (1'), a stationary cutter head mounting seat one (2') for mounting the stationary cutter head one, a moving cutter head one (3'), and a moving cutter head mounting seat one (4') for mounting the moving cutter head one and capable of driving the moving cutter head one to rotate synchronously. The center of the transmission gear (B1) is connected to the moving cutter head mounting seat one (4') via a transmission member (5').

4. The hair clipper according to claim 3, characterized in that: The plurality of output gears one (B2) are identical gears and have a rotational speed higher than that of the transmission gear (B1).

5. A hair clipper according to claim 1, characterized in that: The transmission gear (B1) is mounted on the fuselage (A). It further includes a spare head two (C'') that can replace the main head (C). The spare head two (C'') has a plurality of cutter heads. Each cutter head has a stationary cutter head two (1''), a stationary cutter head mounting seat two (2'') for mounting the stationary cutter head two, a moving cutter head two (3''), and a moving cutter head mounting seat two (4'') for mounting the moving cutter head two and capable of driving the moving cutter head two to rotate synchronously. It also includes a plurality of output gears two (B5) linked to the transmission gear (B1). The center of each output gear two (B5) is connected to the respective moving cutter head mounting seat two (4'') via a transmission shaft one (5'').

6. The hair clipper according to claim 5, characterized in that: The plurality of output gears two (B5) are identical gears and have the same rotational speed, which is lower than the rotational speed of the output gears one (B2).

7. A hair clipper according to claim 5 or 6, characterized in that: A driven gear (6'') is further provided on the spare head two (C''). The plurality of output gears two (B5) are rotatably mounted on the spare head two (C'') and are directly or indirectly engaged with the outer periphery of the driven gear (6''). The driven gear (6'') is further connected to the lower transmission gear (B1) via a linkage shaft (7'') and rotates synchronously.

8. A hair clipper according to claim 7, characterized in that: A plurality of cutter heads include a central cutter head (1a'') and a plurality of outer cutter heads (1b'') distributed on the periphery of the central cutter head. The center of each output gear two (B5) is connected to the moving cutter head mounting seat two (4'') of its respective outer cutter head through a first transmission shaft (5''), and the center of the driven gear (6'') is also connected to the moving cutter head mounting seat two (4'') of the central cutter head through a second transmission shaft (8''), and the driven gear (6'') has the same rotational speed as each output gear two (B5).

9. A hair clipper according to claim 3 or 5, characterized in that: The above-mentioned stationary cutter head is a knife net, and the moving cutter head is a cutter disc. The center of the knife net has a tool holder (31') mounted on the moving cutter head mounting seat, and an elastic member two (6') for applying an elastic thrust to the cutter disc in the direction of the knife net is provided between the tool holder (31') and the corresponding moving cutter head mounting seat. The tool holder (31') is rotatably sleeved outside the central column (11') of the knife net.

10. A hair clipper according to any one of claims 1-6, characterized in that: The driving gear (B1) and the output gear one (B2) are respectively rotatably mounted in an accommodation cavity (A1) on the fuselage (A) through a rotating shaft (8); the machine head is detachably connected to the fuselage (A).

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