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, and the movable blade driving mechanism comprises a transmission disc rotationally installed on the machine body or the main machine head and an eccentric part linked with an output shaft of the motor. The eccentric part is inserted into the sliding groove in the transmission disc so that the transmission disc can be driven to swing in a reciprocating mode around the rotation center of the transmission disc, a plurality of main transmission shafts are further arranged on the transmission disc, and the main transmission shafts are inserted into the shaft holes in the movable blade installation bases and can drive the blade installation bases to swing synchronously. The movable cutter can be stably driven to swing back and forth through the multiple main transmission shafts.

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 relative to the axis of the motor. A sliding groove for the eccentric member to extend into is provided on the swing rod. The eccentric member extends into this sliding groove. 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 the hair 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. Summary 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, which can stably drive the moving blade to swing back and forth through a plurality of main transmission shafts.

[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 disk rotatably installed on the body or the main head, and an eccentric member linked to the output shaft of the motor. The eccentric member is inserted into a sliding groove on the transmission disk, so as to drive the transmission disk to make a reciprocating swing around its rotation center. A plurality of main transmission shafts are further provided on the transmission disk. Each main transmission shaft is inserted into a respective shaft hole on the moving blade mounting seat and can drive the blade mounting seat to swing synchronously.

[0005] By adopting the above technical solution, the output shaft of the motor drives the eccentric member to rotate, and through cooperation with the sliding groove, it can drive the transmission disk to swing back and forth. Then, a plurality of main transmission shafts provided on the transmission disk are inserted into respective shaft holes on the moving blade mounting seat, which can stably drive the moving blade to swing back and forth together, and the vibration of the moving blade is small.

[0006] Preferably, the main head has a main housing. The stationary blade mount is installed on the main housing. The center of the movable blade mount is rotatably connected to the main housing via a support shaft. An elastic member I is provided between the bottom surface of the main housing and the movable blade mount to apply an elastic thrust to the movable blade mount in the direction of the stationary blade. There are multiple elastic members I, which act on the outer periphery of the movable blade mount in the circumferential direction. A through port corresponding to the shaft hole is provided on the bottom surface of the main housing. By abutting multiple elastic members I against the outer periphery of the movable blade mount, the movable blade mount is evenly stressed and not prone to tilting to one side, enabling the movable blade to be well abutted and fitted against the stationary blade.

[0007] Preferably, it 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 mount I for mounting the stationary cutter head I, a movable cutter head I, and a movable cutter head mount I for mounting the movable cutter head I and capable of driving the movable cutter head I to rotate synchronously. It also includes a transmission wheel rotatably mounted on the machine body and linked to the output shaft of the motor. The center of the transmission wheel is connected to the movable cutter head mount I via a transmission member, and the rotational speed of the transmission wheel is lower than that of the eccentric member. Connecting the transmission wheel and the movable cutter head mount I by a transmission member enables the two to rotate synchronously and can drive the movable cutter head I on the movable cutter head mount I to continuously rotate; and it meets the requirement that the rotational speed of the annular movable blade is higher than that of the movable cutter head I to avoid excessive load on the motor.

[0008] Preferably, it further includes a spare head II that can replace the main head. The spare head II has multiple cutter heads. Each cutter head has a stationary cutter head II, a stationary cutter head mount II for mounting the stationary cutter head II, a movable cutter head II, and a movable cutter head mount II for mounting the movable cutter head II and capable of driving the movable cutter head II to rotate synchronously. It also includes a transmission wheel rotatably mounted on the machine body and linked to the output shaft of the motor, and multiple output gears linked to the transmission wheel. The center of each output gear is connected to each movable cutter head mount II via a transmission shaft I. Multiple cutter heads can also be installed. The transmission wheel drives the multiple output gears to rotate synchronously. Connecting the output gears and each movable cutter head mount II by the transmission shaft I enables the two to rotate synchronously, and the multiple output gears can drive each movable cutter head II to continuously rotate.

[0009] Preferably, the multiple output gears are the same gears and have the same rotational speed, and the rotational speed is lower than that of the eccentric member.

[0010] Preferably, a driven gear is further provided on the spare head II. The multiple output gears 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 wheel via a linkage shaft and rotates synchronously. Setting the driven gear on the head and the transmission wheel on the machine body, with the two being designed in an upper and lower layered manner, facilitates driving the multiple output gears.

[0011] Preferably, the multiple cutter heads include a central cutter head and several outer cutter heads distributed around the central cutter head. The centers of the output gears are connected to the second moving cutter head mounting seats of their respective outer cutter heads through the first transmission shafts, and the center of the driven gear is also connected to the second moving cutter head mounting seat of the central cutter head through the second transmission shaft. The driven gear has the same rotational speed as each output gear, which is convenient for driving multiple second moving cutter heads with high synchronism.

[0012] 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 tool holder installed 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 tool holder and the corresponding moving cutter head mounting seat. The tool 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.

[0013] Preferably, a driving gear is provided on the eccentric member. The driving gear is coaxially connected to the output shaft of the motor. The driving gear is directly or indirectly engaged with the transmission wheel, and the rotational speed of the driving gear is higher than that of the transmission wheel. Since the eccentric member and the driving gear have the same speed, after transmission, the rotational speed of the eccentric member will be greater than that of the transmission wheel.

[0014] Preferably, both the transmission disc and the transmission wheel are installed on the machine body, and their rotation centers are coaxially arranged; the machine head is detachably connected to the machine body, which is convenient for installing the transmission disc and the transmission wheel and replacing the machine head. Description of the Drawings

[0015] Figure 1 Structural diagram of Specific Embodiment 1 of the present invention;

[0016] Figure 2 One of the internal structural diagrams of Specific Embodiment 1 of the present invention;

[0017] Figure 3 Another internal structural diagram of Specific Embodiment 1 of the present invention;

[0018] Figure 4 Exploded view of the main machine head and the machine body in Specific Embodiment 1 of the present invention;

[0019] Figure 5 Exploded view of the main machine head in Specific Embodiment 1 of the present invention;

[0020] Figure 6 Structural diagram of one side of the bottom surface of the main machine head in Specific Embodiment 1 of the present invention;

[0021] Figure 7 Exploded view of the machine body in Specific Embodiment 1 of the present invention;

[0022] Figure 8 Structural diagram of Specific Embodiment 2 of the present invention;

[0023] Figure 9 It is one of the internal structure diagrams of Specific Embodiment 2 of the present utility model;

[0024] Figure 10 It is the second internal structure diagram of Specific Embodiment 2 of the present utility model;

[0025] Figure 11 It is the exploded view of Specific Embodiment 2 of the present utility model;

[0026] Figure 12 It is the structure diagram of one side of the bottom surface of the spare head 1 in Specific Embodiment 2 of the present utility model;

[0027] Figure 13 It is the fuselage structure diagram of the specific embodiment of the present utility model;

[0028] Figure 14 It is the transmission disc structure diagram of the specific embodiment of the present utility model;

[0029] Figure 15 It is the transmission disc drive structure diagram of the specific embodiment of the present utility model;

[0030] Figure 16 It is the separated view of the cutter net and the cutter blade in the specific embodiment of the present utility model;

[0031] Figure 17 It is the split view of the spare head 2 and the fuselage in Specific Embodiment 3 of the present utility model;

[0032] Figure 18 It is the internal structure diagram of Specific Embodiment 3 of the present utility model;

[0033] Figure 19 It is the internal structure diagram of the spare head 2 in Specific Embodiment 3 of the present utility model;

[0034] Figure 20 It is the separated view of the transmission wheel and the driven gear in Specific Embodiment 3 of the present utility model;

[0035] Figure 21 It is the meshing transmission diagram of the driven gear and the output gear in Specific Embodiment 3 of the present utility model.

[0036] In the figure: fuselage A, moving cutter drive mechanism B, main head C, static cutter blade 1, static cutter blade mounting seat 2, moving cutter blade 3, moving cutter blade mounting seat 4, shaft hole 41, cutter teeth D, transmission disc B1, sliding groove B11, main transmission shaft B12, motor B2, eccentric part B3, main housing 5, through port 51, support shaft 6, first elastic part 7, accommodation cavity A1;

[0037] Standby machine head 1 - C', stationary cutter head 1 - 1', stationary cutter head mounting seat 1 - 2', moving cutter head 1 - 3', moving cutter head mounting seat 1 - 4', drive wheel B4, drive groove B41, transmission member 5', driving gear B5;

[0038] Standby machine head 2 - C'', center cutter head 1a'', outer ring cutter head 1b'', stationary cutter head 2 - 1'', stationary cutter head mounting seat 2 - 2'', moving cutter head 2 - 3'', moving cutter head mounting seat 2 - 4'', drive wheel B4, output gear 5'', transmission shaft 1 - 6'', driven gear 7'', linkage shaft 8'', transmission shaft 2 - 9'';

[0039] Tool rest 31', elastic member 2 - 6', center post 11', convex shaft A2, shaft cavity A21, rotating shaft 10, through hole B13. Specific embodiments

[0040] Next, the technical solutions in this embodiment will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] As Figure 1-7 shown: Specific embodiment 1 of the present invention can be equipped with the first type of machine head. A hair clipper includes a body A, a moving cutter 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. Both the moving blade 3 and the stationary blade 1 are annular structures, and both are provided with cutter teeth D on the inner ring. The moving blade 3 cooperates with the stationary blade 1 to cut hair. The moving cutter driving mechanism B includes a transmission disk B1 rotatably mounted on the body A or the main machine head C, and an eccentric member B3 linked to the output shaft of the motor B2. The eccentric member also has a hole for inserting the output shaft of the motor, and the center of the eccentric member is offset from the output shaft of the motor. The eccentric member B3 is inserted into the sliding groove B11 on the transmission disk B1, so as to drive the transmission disk B1 to make a reciprocating swing around its rotation center. A plurality of main transmission shafts B12 are also provided on the transmission disk B1. Each main transmission shaft B12 is inserted into the respective shaft hole 41 on the moving blade mounting seat 4 and can drive the blade mounting seat 4 to swing synchronously. A plurality of the shaft holes are directly or indirectly provided on the moving blade mounting seat. The main transmission shafts are fixedly or integrally provided on the transmission disk, and the plurality of transmission shafts are also circumferentially distributed. The center of the transmission disk B1 is rotationally connected to the body through a shaft, or the transmission disk is rotatably arranged in a circular cavity on the body.

[0042] Specifically, the main head C has a main housing 5. The stationary blade mount 2 is installed on the main housing 5. The center of the moving blade mount 4 is rotatably connected to the main housing 5 via a support shaft 6. An elastic member 7 is provided between the bottom surface of the main housing 5 and the bottom surface of the moving blade mount 4 to apply an elastic thrust to the moving blade mount 4 in the direction of the stationary blade 1. There are multiple elastic members 7, which act on the outer periphery of the moving blade mount 4 in the circumferential direction. A through hole 51 corresponding to the shaft hole 41 is provided on the bottom surface of the main housing 5.

[0043] During the assembly of the main head, the stationary blade 1 is installed on the stationary blade mount 2, the moving blade 3 is installed on the moving blade mount 4, and the moving blade 3 is located below the stationary blade 1. The stationary blade mount 2 is installed on the main housing 5 by screws or snaps, the moving blade mount 4 is rotatably connected to the main housing 5, and the elastic member 7 is abutted between the moving blade mount 4 and the main housing 5.

[0044] The fuselage can be composed of a detachable upper cover and a lower cover to form an accommodation cavity A1. The center of the transmission disc B1 is rotatably installed on the lower cover via a shaft, and the eccentric member B3 is inserted into the sliding groove B11 on the transmission disc B1, and then the upper cover is installed.

[0045] After that, the main head C is installed on the fuselage, and each main transmission shaft B12 is inserted into the respective shaft holes 41 on the moving blade mount 4.

[0046] During use, the motor B2 of the moving blade driving mechanism drives the eccentric member B3 to rotate. By the movement of the eccentric member B3 in the sliding groove B11 on the transmission disc B1, the transmission disc B1 can be driven to make a reciprocating swing around its rotation center. And through the main transmission shaft B12 inserted into the shaft hole 41 on the moving blade mount 4, the blade mount 4 can be driven to swing synchronously, so that the moving blade and the stationary blade 1 can cooperate to fit the head for shaving. Through the corresponding cooperation of multiple main transmission shafts and multiple shaft holes, the moving blade can be stably driven to swing back and forth with small vibration.

[0047] Specifically, the transmission disc B1 is rotatably installed in the accommodation cavity A1 on the fuselage A; the main head C and the fuselage are detachably connected, which can be a snap connection or a magnetic attraction connection.

[0048] Such as Figure 8-16As shown: In the specific embodiment 2 of the present utility model, a second type of machine head can be installed. A hair clipper includes a body A, a moving knife driving mechanism B, and a spare machine head C' that can replace the main machine head C. The spare machine head C' has a stationary knife head 1', a stationary knife head mounting seat 2' for mounting the stationary knife head 1', a moving knife head 3', and a moving knife head mounting seat 4' for mounting the moving knife head 3' and driving the moving knife head 3' to rotate synchronously. It also includes a transmission wheel B4 rotatably installed on the body A and linked to the output shaft of the motor B2. The center of the transmission wheel B4 is connected to the moving knife head mounting seat 4' through a transmission member 5'. The transmission member 5' is integrally provided on the center of the transmission wheel, or a transmission groove B41 for inserting the transmission member 5' is provided. The transmission member 5' is an integral shaft member, and the two end shafts of a shaft member are respectively clamped on the center of the transmission wheel and the moving knife head mounting seat; or the transmission member 5' is a segmented shaft member, and the two shaft segments are respectively clamped on the center of the transmission wheel and the moving knife head mounting seat, and an elastic member is also provided between the two shaft segments. Specifically, the transmission disk B1 and the transmission wheel B4 are rotatably installed in the accommodation cavity A1 on the body, and the rotation centers are coaxially arranged. The body A has a convex shaft A2, and the center of the convex shaft A2 has a shaft cavity A21. The center of the transmission wheel has a rotating shaft 10 that can be rotatably inserted into the shaft cavity A21. The center of the transmission disk has a through hole B13 for inserting the convex shaft A2 and forms a rotating fit with the convex shaft. The rotating shaft 10 can be provided on the transmission wheel or integrally provided on the center of the convex shaft. Or the transmission disk can be rotatably arranged in a circular concave cavity on the body, or can also be rotatably arranged in a segmented ring on the body.

[0049] Specifically, a driving gear B5 is provided on the eccentric member B3. The eccentric member and the driving gear are fixed or integrally provided. The driving gear B5 is coaxially connected to the output shaft of the motor B2. The driving gear B5 is directly or indirectly engaged with the transmission wheel B4. When the driving gear is directly meshed with the transmission wheel, since the number of teeth of the transmission wheel is more than that of the driving gear, the rotation speed of the driving gear is higher than that of the transmission wheel. Since the eccentric member and the driving gear have the same speed, the rotation speed of the eccentric member will be greater than that of the transmission wheel; of course, the rotation speed of the driving gear can also be higher than that of the transmission wheel through a speed reducer. The rotation speed of the transmission wheel B4 is lower than that of the eccentric member B3.

[0050] Specifically, the stationary knife head 1' is a knife net, and the moving knife head 3' is a knife disk. The center of the knife net has a knife holder 31' installed on the moving knife head mounting seat, and an elastic member two 6' for applying an elastic thrust to the knife disk in the direction of the knife net is provided between the knife holder 31' and the corresponding moving knife head mounting seat. The knife holder 31' is rotatably sleeved outside the central column 11' of the knife net.

[0051] Specifically, the spare machine head C' is detachably connected to the body. The motor B2 is generally installed in the body.

[0052] The eccentric drive main machine head in Embodiment 1 can be replaced with the spare machine head C'.

[0053] During use, the motor B2 of the moving knife driving mechanism drives the driving gear B5, and the driving gear B5 meshes with the transmission wheel B4, thereby driving the transmission wheel B4 to rotate. The transmission wheel B4 and the moving knife head mounting seat 4' are connected by the transmission member 5', so that the two rotate synchronously, and the moving knife head 3' on the moving knife head mounting seat 4' can be continuously rotated.

[0054] As Figure 13-21 shown: In the specific embodiment 3 of the present invention, a third type of machine head can be installed, a hair clipper, including a body A, a moving knife driving mechanism B, and a spare machine head C'' that can replace the main machine head C. The spare machine head C'' has a plurality of knife heads, each knife head has a static knife head 1'', a static knife head mounting seat 2'' for mounting the static knife head, a moving knife head 3'', and a moving knife head mounting seat 4'' for mounting the moving knife head and driving the moving knife head to rotate synchronously. It also includes a transmission wheel B4 rotatably installed on the body A and linked to the output shaft of the motor B2, and a plurality of output gears 5'' linked to the transmission wheel B4. The center of each output gear 5'' is connected to each moving knife head mounting seat 4'' through a transmission shaft 6''. Specifically, the transmission disk B1 and the transmission wheel B4 are rotatably installed in the accommodating cavity A1 on the body and have the same axis of rotation center. The eccentric member B3 is provided with a driving gear B5, and the driving gear B5 is coaxially connected to the output shaft of the motor B2. The driving gear B5 is directly or indirectly engaged with the transmission wheel B4, and the rotational speed of the driving gear B5 is higher than that of the transmission wheel B4. The plurality of output gears 5'' are the same gears and have the same rotational speed, and are lower than the rotational speed of the eccentric member B3.

[0055] Specifically, a driven gear 7'' is also rotatably installed on the spare machine head C''. The plurality of output gears 5'' are rotatably installed on the spare machine head C'' and are directly or indirectly engaged with the outer periphery of the driven gear 7''. The driven gear 7'' is also connected to the lower transmission wheel B4 through a linkage shaft 8'' and rotates synchronously. The linkage shaft 8'' is fixed or integrally provided on the transmission wheel B4, or a transmission groove B41 for inserting the linkage shaft 8'' is provided. The plurality of knife heads have a central knife head 1a'' and a plurality of outer ring knife heads 1b'' distributed on the periphery of the central knife head. The center of each output gear 5'' is connected to the moving knife head mounting seat 4'' of its respective outer ring knife head through a transmission shaft 6'', and the center of the driven gear 7'' is also connected to the moving knife head mounting seat 4'' of the central knife head through a transmission shaft 9''. The rotational speed of the driven gear 7'' is the same as that of each output gear 5''.

[0056] Specifically, the static cutter head II is a cutter net, and the moving cutter head II is a cutter disc. The center of the cutter net has a tool holder 31' mounted on the moving cutter head mounting seat, and an elastic member II 6' for applying 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 fixed or integrally provided on the moving cutter head mounting seat and is rotatably sleeved outside the central column 11' of the cutter net.

[0057] Specifically, the spare head II C'' is detachably connected to the machine body, and it can be a snap connection or a magnetic connection.

[0058] The eccentric drive main head in Embodiment 1 can be replaced with the spare head II.

[0059] During use, the motor B2 of the moving cutter drive mechanism drives the driving gear B5, and the driving gear B5 meshes with the transmission wheel B4, thereby driving the transmission wheel B4 to rotate. The driven gear 7'' and the transmission wheel B4 are connected by the linkage shaft 8'', so that the two rotate synchronously. Since a plurality of output gears 5'' are directly or indirectly engaged with the outer periphery of the driven gear 7'', a plurality of output gears 5'' are driven to rotate synchronously, and the output gears 5'' are connected to the moving cutter head mounting seat II 4'' of the outer ring cutter head by the transmission shaft I 6'' to achieve synchronous rotation. The driven gear 7'' and the moving cutter head mounting seat II 4'' of the center cutter head are connected by the transmission shaft II 9'' to achieve synchronous rotation, so that the moving cutter heads II 3'' on a plurality of moving cutter head mounting seats II 4'' can be driven to rotate synchronously.

[0060] The above elastic member can be a spring or a spring sheet.

[0061] The machine body structures in the above embodiments are the same, while the head structures are different and can be replaced with each other.

[0062] Of course, the transmission disc B1 can also be only mounted on the main head C, and the transmission wheel B4 can also be respectively mounted on their respective spare heads.

[0063] 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 specifying 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 specifically defined.

[0064] In the description of the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "coupled", "connected", "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be directly connected, or indirectly connected through an intermediate medium, and it may 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 utility model can be understood according to specific circumstances.

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. Both the moving blade (3) and the stationary blade (1) are of an annular structure, and cutting teeth (D) are provided on the inner rings thereof. The moving blade (3) cooperates with the stationary blade (1) to cut hair, and is characterized in that: The described moving knife driving mechanism (B) includes a transmission disc (B1) rotatably mounted on the fuselage (A) or the main head (C), and an eccentric member (B3) linked to the output shaft of the motor (B2). The eccentric member (B3) is inserted into a sliding groove (B11) on the transmission disc (B1), so as to drive the transmission disc (B1) to make a reciprocating swing around its rotation center. A plurality of main transmission shafts (B12) are further provided on the transmission disc (B1), and each main transmission shaft (B12) is inserted into respective shaft holes (41) on the moving blade mounting seat (4) and can drive the blade mounting seat (4) to swing synchronously.

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) through 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). There are a plurality of elastic members one (7), which act on the outer periphery of the moving blade mounting seat (4) in the circumferential direction. A through port (51) corresponding to the shaft hole (41) is provided on the bottom surface of the main housing (5).

3. A hair clipper according to claim 1, characterized in that: It further includes a spare head one (C') that can replace the main head (C). The spare head one (C') has a stationary knife head one (1'), a stationary knife head mounting seat one (2') for mounting the stationary knife head one, a moving knife head one (3'), and a moving knife head mounting seat one (4') for mounting the moving knife head one and capable of driving the moving knife head one to rotate synchronously. It further includes a transmission wheel (B4) rotatably mounted on the fuselage (A) and linked to the output shaft of the motor (B2). The center of the transmission wheel (B4) is connected to the moving knife head mounting seat one (4') through a transmission member (5'), and the rotational speed of the transmission wheel (B4) is lower than that of the eccentric member (B3).

4. A hair clipper according to claim 1, wherein: It further includes a spare head two (C'') that can replace the main head (C). The spare head two (C'') has a plurality of knife heads, and each knife head has a stationary knife head two (1''), a stationary knife head mounting seat two (2'') for mounting the stationary knife head two, a moving knife head two (3''), and a moving knife head mounting seat two (4'') for mounting the moving knife head two and capable of driving the moving knife head two to rotate synchronously. It further includes a transmission wheel (B4) rotatably mounted on the fuselage (A) and linked to the output shaft of the motor (B2), and a plurality of output gears (5'') linked to the transmission wheel (B4). The center of each output gear (5'') is connected to each moving knife head mounting seat two (4'') through a transmission shaft one (6'').

5. A hair clipper according to claim 4, characterized in that: The plurality of output gears (5'') are the same gears and have the same rotational speed, and the rotational speed is lower than that of the eccentric member (B3).

6. A hair clipper according to claim 4 or 5, characterized in that: A driven gear (7'') is further provided on the spare head two (C''). The plurality of output gears (5'') are rotatably mounted on the spare head two (C'') and directly or indirectly engage with the outer periphery of the driven gear (7''). The driven gear (7'') is further connected to the lower transmission wheel (B4) through a linkage shaft (8'') and rotates synchronously.

7. A hair clipper according to claim 6, characterized in that: The plurality of cutter heads include a central cutter head (1a'') and a plurality of outer cutter heads (1b'') distributed around the central cutter head. The centers of the output gears (5'') are connected to the second moving cutter head mounting seats (4'') of their respective outer cutter heads through a first transmission shaft (6''), and the center of the driven gear (7'') is also connected to the second moving cutter head mounting seat (4'') of the central cutter head through a second transmission shaft (9''). The driven gear (7'') has the same rotational speed as each output gear (5'').

8. A hair clipper according to claim 3 or 4, characterized in that: 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 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 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.

9. A hair clipper according to claim 3 or 4, characterized in that: A driving gear (B5) is provided on the eccentric member (B3), and the driving gear (B5) is coaxially connected to the output shaft of the motor (B2). The driving gear (B5) is directly or indirectly engaged with the transmission wheel (B4), and the rotational speed of the driving gear (B5) is higher than that of the transmission wheel (B4).

10. A hair clipper according to any one of claims 3 to 5, characterized in that: Both the transmission disc (B1) and the transmission wheel (B4) are mounted on the fuselage (A), and their rotation centers are coaxially arranged; the machine head is detachably connected to the fuselage (A).

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