Hair clipper driving structure

Abstract

The utility model provides a hair clipper driving structure. The hair clipper driving structure comprises a driving device, a driving sleeve, a wobble wheel, a wobble piece, a first mounting plate, an elastic steel sheet and a second mounting plate, during use, the driving device starts the driving shaft to drive the driving sleeve to rotate, the driving sleeve rotates to drive the eccentric shaft to rotate synchronously, the eccentric shaft rotates to drive the wobble wheel to rotate in the cam driving groove, and power is transmitted to the cam driving groove, so that the wobble piece can swing left and right and drive the tool bit to reciprocate; when the swing piece swings, the first mounting plate swings synchronously and drives one end of the elastic steel sheet to swing; when the elastic steel sheet swings, resilience force can be generated due to inertia of the elastic steel sheet, the resilience force is transmitted to the swing part, and the swing part swings by means of the resilience force. The swing part swings by means of resilience force of the elastic steel sheet, the load of the motor is reduced, the cruising ability of the battery can be improved, the loss of the driving device is reduced, and the service life of the hair clipper is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to hair clipper technical field, concretely relates to a hair clipper drive structure. BACKGROUND

[0002] In modern life, hair clippers are indispensable tools in the hairdressing industry, and their most basic function is to accurately trim the length of the hair. In addition to simple length trimming, hair clippers can also be used to shape hairstyles, whether it is a neat short haircut, a neat fringe, or a subtle styling of the temples, all of which can be precisely controlled to lay the foundation for hairstyle shaping and meet people's pursuit of individuality and beauty.

[0003] Chinese patent document CN103568036A discloses a trimmer comprising a trimmer body, a rotary drive device within the body, a cutting head assembly interconnected with the trimmer body, and a drive member; the drive member operably interconnects the rotary drive device and the cutting head assembly to convert rotary motion of the rotary drive device to oscillation of a portion of the cutting head assembly relative to another portion; the drive member includes an injection molded transmission and an injection molded hinge; the transmission includes a cam follower driven by the rotary drive device and a drive rod engaged with a portion of the cutting head assembly; the hinge includes a mounting structure for mounting the drive member to the trimmer body and a plurality of webs supporting the transmission for oscillatory motion; and one of the transmission and the hinge is injection molded over a portion of the other to mechanically couple the transmission and the hinge.

[0004] The technical solution in the above patent document connects the rotary drive device with the drive member, and connects the drive member with the cutting head assembly; specifically, the rotary drive device starts the driving cam follower to rotate in the defined area in the drive member, and transmits power to the drive member, so that the drive member generates oscillation and drives the webs and the cutting head assembly to oscillate according to the preset trajectory. The problem of the above technical solution is that the overall structure of the drive member is complex, including the hinge and the transmission, and the structure of the hinge includes the crossbeam, the window frame, the left side support, the right side support, the vertical slot, and the Z-shaped mounting structure, the first base plate, the second base plate, and the plurality of webs; the transmission includes the front plate, the left anchor, the right anchor, the rear plate, the bridge-shaped part, the drive rod, and the cam follower, etc., and the overall structure is very complex. Moreover, the transmission and the hinge need to be injection molded respectively, and need to be injection molded and combined for installation, which leads to a relatively complex production process; in addition, the power of the cutting head assembly relies entirely on the direct driving of the cam follower, the motor load is large, the endurance is low, the power loss is large, which causes the service life of the hair clipper to be short and the quietness to be poor.

[0005] Therefore, how to design a hair clipper drive structure that can improve the service life of the hair clipper is a technical problem that has not yet been solved in the existing technology. Utility Model Content

[0006] Therefore, the technical problem to be solved by this utility model is to overcome the technical defects of the existing technology, such as complex structure of the driving component, complex production process, and all power relying on the direct drive of the cam follower, which leads to large motor load, short range and short service life, so as to provide a hair clipper driving structure that can improve the service life of the hair clipper.

[0007] Therefore, this utility model provides a hair clipper driving structure, comprising:

[0008] The drive unit has a drive shaft;

[0009] The drive sleeve has one end fixedly sleeved on the drive shaft, and the other end has an eccentric shaft. The axis of the eccentric shaft is parallel to but does not coincide with the axis of the drive shaft.

[0010] A swing wheel is mounted on the eccentric shaft;

[0011] The oscillating component has a cam drive groove at one end and an integrally formed mounting head suitable for connecting a cutting head at the other end; the oscillating wheel can be installed into the cam drive groove and, under the drive of the driving device, can drive the oscillating component to oscillate left and right by driving the cam drive groove; the mounting head is suitable for insertion and installation with the cutting head.

[0012] The first mounting plate is fixedly installed at the bottom of the swing component;

[0013] At least two elastic steel sheets are installed at one end on each side of the first mounting plate;

[0014] A second mounting plate is adapted to be fixedly mounted on a hair clipper, with the other ends of at least two of the elastic steel sheets respectively mounted on both sides of the second mounting plate;

[0015] The swinging component swings, causing the first mounting plate to swing, and further causing one end of the elastic steel sheet to swing relative to the other end; when the elastic steel sheet rebounds, it can drive the swinging component to swing.

[0016] As a preferred embodiment, the thickness of the elastic steel sheet is at least 0.06 mm; at least 10 of the elastic steel sheets are installed on both sides of the first mounting plate and the second mounting plate respectively.

[0017] As a preferred embodiment, the thickness of the elastic steel sheet is at least 0.09 mm, and at least three elastic steel sheets are respectively installed on both sides of the first mounting plate and the second mounting plate.

[0018] As a preferred solution, one end of the elastic steel sheet is fixedly installed on the first mounting plate through a first mounting structure; the first mounting structure comprises:

[0019] The first connecting plate is two, and is integrally formed on both sides of the first mounting plate;

[0020] The first riveting column is at least two, and is formed on the outer side wall of the two first connecting plates;

[0021] The first connecting through hole is arranged on one end of the elastic steel sheet opposite to the first riveting column; the first riveting column is fixedly connected with the first connecting through hole in a riveting manner, so that one end of the elastic steel sheet is fixedly installed on the first mounting plate.

[0022] As a preferred solution, the other end of the elastic steel sheet is fixedly installed on the second mounting plate through a second mounting structure; the second mounting structure comprises:

[0023] The second connecting plate is two, and is integrally formed on both sides of the second mounting plate;

[0024] The second riveting column is at least two, and is formed on the outer side wall of the two second connecting plates;

[0025] The second connecting through hole is arranged on the other end of the elastic steel sheet opposite to the second riveting column; the second riveting column is fixedly connected with the second connecting through hole in a riveting manner, so that the other end of the elastic steel sheet is fixedly installed on the second mounting plate.

[0026] As a preferred solution, the bottom of the swing piece is provided with two first internal thread blind holes, the first mounting plate is provided with two first mounting through holes opposite to the first internal thread blind holes, and a first mounting bolt is screwed through the first mounting through hole and the first internal thread blind hole to fixedly install the first mounting plate on the swing piece.

[0027] As a preferred solution, the bottom of the swing piece is provided with two first internal thread blind holes, the first mounting plate is provided with two first mounting through holes opposite to the first internal thread blind holes, and a first mounting bolt is screwed through the first mounting through hole and the first internal thread blind hole to fixedly install the first mounting plate on the swing piece.

[0028] As a preferred solution, the eccentric shaft is provided with an annular mounting groove near the free end;

[0029] Further comprising an elastic retaining ring, which can be fixedly installed in the annular mounting groove and used for limiting the swing wheel.

[0030] As a preferred scheme, two sides of the swing piece are formed with first reinforcing ribs near one end of the cam driving groove, and the top is formed with a groove, and the inside of the groove is formed with a second reinforcing rib.

[0031] As a preferred scheme, two second installation through holes are formed in the second installation plate, and installation claws are arranged on two sides, and the second installation plate can be installed on the hair cutter through the second installation through holes and the installation claws.

[0032] The technical scheme provided by the hair cutter has the following advantages.

[0033] The hair cutter driving structure comprises a driving device, a driving sleeve, a swing wheel, a swing piece, a first installation plate, an elastic steel sheet and a second installation plate; wherein the driving device has a driving shaft; the driving sleeve is fixedly sleeved on one end of the driving shaft, and has an eccentric shaft on the other end, and the axis of the eccentric shaft is parallel to but not coincident with the axis of the driving shaft; the swing wheel is installed on the eccentric shaft; one end of the swing piece is provided with a cam driving groove, and the other end is integrally formed with an installation head suitable for connecting a cutter head; the swing wheel can be installed into the cam driving groove, and can be driven by the driving device to drive the swing piece to swing left and right through the driving cam driving groove; the installation head is suitable for being elastically inserted and installed with the cutter head; the first installation plate is fixedly installed at the bottom of the swing piece; the elastic steel sheet is at least two pieces, and one end of each is installed on the two sides of the first installation plate; the second installation plate is suitable for being fixedly installed on the hair cutter, and the other end of the at least two elastic steel sheets is installed on the two sides of the second installation plate; the swing piece drives the first installation plate to swing, and further drives one end of the elastic steel sheet to swing relative to the other end; the elastic steel sheet can drive the swing piece to swing when rebounding.

[0034] In use, the driving device starts to drive the driving shaft to rotate the driving sleeve, the driving sleeve rotates to drive the eccentric shaft to rotate synchronously, the rotation of the eccentric shaft drives the swing wheel to rotate in the cam driving groove, and the power is transmitted to the cam driving groove, so that the swing piece can swing left and right and can drive the cutter head to reciprocate according to a preset track; while the swing piece swings, the first mounting plate swings synchronously and drives one end of the elastic steel sheet to swing relative to the other end; in the swinging process of the elastic steel sheet, a rebound force is generated due to the inertia of the elastic steel sheet, the force is transmitted to the first mounting plate and the swing piece, and the swing piece can swing by means of the rebound force generated when the elastic steel sheet swings. The hair clipper driving structure of the utility model discards the design of multiple driving components of the traditional driving structure, adopts a simplified driving assembly layout, so that the overall structure is simpler; and the swing piece, the first mounting plate and the second mounting plate can be formed by one-time injection molding, so that the production process is simplified and the production efficiency is improved; in addition, the swing piece can swing by means of the rebound force generated when the elastic steel sheet swings, the motor load is reduced, so that the endurance of the battery can be improved, the loss of the driving device is reduced, and the service life of the hair clipper is improved. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical scheme in the prior art or the specific embodiment of the utility model, the drawings used in the description of the prior art or the specific embodiment are briefly introduced as follows.

[0036] Figure 1 It is the overall structure schematic view of the hair clipper driving structure of the utility model.

[0037] Figure 2 It is Figure 1 The explosion structure schematic view of.

[0038] Figure 3 It is Figure 2 Another perspective view of.

[0039] Reference signs: 1, swing piece; 11, cam driving groove; 12, first internal thread blind hole; 13, limiting plate; 14, first reinforcing rib; 15, groove; 16, second reinforcing rib; 17, mounting head; 2, first mounting plate; 21, first connecting plate; 23, first mounting through hole; 3, elastic steel sheet; 31, first connecting through hole; 32, first riveting column; 33, second connecting through hole; 34, second riveting column; 4, second mounting plate; 41, second connecting plate; 43, second mounting through hole; 44, mounting claw; 5, driving sleeve; 51, eccentric shaft; 52, swing wheel; 53, annular mounting groove; 54, elastic retainer; 6, driving device; 61, driving shaft. DETAILED DESCRIPTION

[0040] In order to make the skilled in the art better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the embodiments obtained by the skilled in the art without creative labor should belong to the protection scope of the present application.

[0041] It should be noted that the terms "first", "second" and the like in the claims and the description of the present application are used to distinguish similar objects, and are not used to describe a particular order or sequence. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not limited to only those steps or units clearly listed, but can also include other steps or units not clearly listed or inherent to the process, method, product or device.

[0042] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to indicating the orientation or positional relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain attachment relationship or connection relationship in some cases. For the skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific situation. In addition, the meaning of the term "a plurality of" should be two and more than two. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0043] The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments. Embodiments

[0044] The present embodiment provides a hair cutter driving structure, such as Figures 1-3As shown, it comprises: a driving device 6, a driving sleeve 5, a swing wheel 52, a swing piece 1, a first mounting plate 2, elastic steel sheets 3 and a second mounting plate 4; wherein the driving device 6 has a driving shaft 61; the driving sleeve 5 is fixedly sleeved on the driving shaft 61 at one end and has an eccentric shaft 51 at the other end, the axis of the eccentric shaft 51 is parallel to but not coincident with the axis of the driving shaft 61; the swing wheel 52 is installed on the eccentric shaft 51; the swing piece 1 has a cam driving groove 11 at one end and an installation head 17 integrally formed at the other end, which is suitable for connecting a cutter head; the swing wheel 52 can be installed into the cam driving groove 11 and can drive the swing piece 1 to swing left and right under the driving of the driving device 6 by driving the cam driving groove 11; the installation head 17 is suitable for being elastically inserted and installed together with the cutter head; the first mounting plate 2 is fixedly installed at the bottom of the swing piece 1; the elastic steel sheets 3 are at least two, one end of each of which is installed on the two sides of the first mounting plate 2 respectively; the second mounting plate 4 is suitable for being fixedly installed on a hair clipper, and the other end of each of the at least two elastic steel sheets 3 is installed on the two sides of the second mounting plate 4 respectively; the swing piece 1 drives the first mounting plate 2 to swing and further drives one end of the elastic steel sheets 3 to swing relative to the other end; the elastic steel sheets 3 can drive the swing piece 1 to swing when rebounding.

[0045] Before using the hair clipper driving structure of the present embodiment, the driving structure is installed on a hair clipper, and a cutter head is installed on the other end of the swing piece 1. When in use, the driving device 6 starts to drive the driving shaft 61 to drive the driving sleeve 5 to rotate, the driving sleeve 5 drives the eccentric shaft 51 to rotate synchronously, the rotation of the eccentric shaft 51 in turn drives the swing wheel 52 to rotate in the cam driving groove 11 and transmits power to the cam driving groove 11, so that the swing piece 1 can swing left and right and can drive the cutter head to reciprocate along a preset track; while the swing piece 1 swings, the first mounting plate 2 swings synchronously and drives one end of the elastic steel sheets 3 to swing relative to the other end; in the process of swinging, the elastic steel sheets 3 generate a rebounding force due to their inertia, which is transmitted to the first mounting plate 2 and the swing piece 1, and the swing piece 1 can swing by means of the rebounding force generated when the elastic steel sheets 3 swing. The hair clipper driving structure of the present embodiment discards the design of multiple driving components of the traditional driving structure and adopts a simplified driving component layout, so that the overall structure is simpler; moreover, the swing piece 1, the first mounting plate 2 and the second mounting plate 4 can all be formed by one-off injection molding, which simplifies the production process and improves the production efficiency; in addition, the swing piece 1 can swing by means of the rebounding force generated when the elastic steel sheets 3 swing, which reduces the load of the motor, so as to improve the endurance of the battery, reduce the loss of the driving device 6 and further improve the service life of the hair clipper.

[0046] The thickness of the elastic steel sheet 3 is at least 0.06 mm; at least 10 elastic steel sheets 3 are installed on both sides of the first mounting plate 2 and the second mounting plate 4; the inventor has tested that when at least 10 elastic steel sheets 3 are installed and the thickness is at least 0.06 mm, it can reach more than 200h, which can meet the general requirements of the service life of the hair clipper.

[0047] In addition, the thickness of the elastic steel sheet 3 can also be designed to be at least 0.09 mm, and at least 3 elastic steel sheets 3 are installed on both sides of the first mounting plate 2 and the second mounting plate 4. The inventor has tested that when at least 3 elastic steel sheets 3 are installed and the thickness is at least 0.09 mm, it can also reach more than 200h, thereby meeting the general requirements of the service life of the hair clipper.

[0048] One end of the elastic steel sheet 3 is fixedly installed on the first mounting plate 2 through a first mounting structure; the first mounting structure includes a first connecting plate 21, a first riveting column 32, and a first connecting through hole 31; wherein the first connecting plate 21 is two, and is integrally formed on both sides of the first mounting plate 2; the first riveting column 32 is at least two, and is formed on the outer side wall of the two first connecting plates 21; the first connecting through hole 31 is opposite to the first riveting column 32 and is opened on one end of the elastic steel sheet 3; the first riveting column 32 is fixedly connected with the first connecting through hole 31 through riveting, thereby fixing one end of the elastic steel sheet 3 on the first mounting plate 2; the other end of the elastic steel sheet 3 is fixedly installed on the second mounting plate 4 through a second mounting structure; the second mounting structure includes a second connecting plate 41, a second riveting column 34, and a second connecting through hole 33; wherein the second connecting plate 41 is two, and is integrally formed on both sides of the second mounting plate 4; the second riveting column 34 is at least two, and is formed on the outer side wall of the two second connecting plates 41; the second connecting through hole 33 is opposite to the second riveting column 34 and is opened on the other end of the elastic steel sheet 3; the second riveting column 34 is fixedly connected with the second connecting through hole 33 through riveting, thereby fixing the other end of the elastic steel sheet 3 on the second mounting plate 4. The riveting fixing mode is that the riveting column is made of plastic material, during assembly, the riveting column is inserted through the connecting through hole, and then a hot pressing device is used to perform hot pressing operation on the free end of the riveting column protruding out of the connecting through hole, the high temperature makes the plastic material of the riveting column soften and uniformly flatten under pressure, and finally the elastic steel sheet 3 is fixedly installed.

[0049] The bottom of the swing member 1 has two first internal thread blind holes 12, and the first mounting plate 2 has two first mounting through holes 23 opposite to the first internal thread blind holes 12. The first mounting bolt passes through the first mounting through holes 23 and is screwed into the first internal thread blind holes 12 to fix the first mounting plate 2 on the swing member 1.

[0050] like Figure 3 As shown, at the bottom of the swinging component 1, limit plates 13 are respectively provided on both sides of the two first internal thread blind holes 12, and the first mounting plate 2 is installed between the two limit plates 13. The limit plates 13 are used to limit the first mounting plate 2, so that the first mounting plate 2 is more stable when swinging, and avoids falling off or shifting.

[0051] The eccentric shaft 51 is provided with an annular mounting groove 53 near its free end; it also includes an elastic retaining ring 54, which can be fixedly installed in the annular mounting groove 53 to limit the swing wheel 52.

[0052] like Figure 2 As shown, the oscillating member 1 has a first reinforcing rib 14 formed on both sides, near the end of the cam drive groove 11, and a groove 15 formed on the top. A second reinforcing rib 16 is formed inside the groove 15. The first reinforcing rib 14 is used to hold the outer wall of the cam drive groove 11 to prevent the cam drive groove 11 from being concave; the groove 15 is used to prevent the oscillating member 1 from shrinking during injection molding and to ensure uniform thickness; the second reinforcing rib 16 is used to prevent the sides of the groove 15 from collapsing inward.

[0053] The second mounting plate 4 has two second mounting through holes 43 and mounting claws 44 on both sides. The second mounting plate 4 can be mounted on the hair clipper through the second mounting through holes 43 and the mounting claws 44. The hair clipper has a threaded blind hole opposite to the second mounting through holes 43. A mounting bolt is used to screw the second mounting through hole 43 into the threaded blind hole to fix the second mounting plate 4 on the hair clipper. The hair clipper also has mounting holes opposite to the mounting claws 44. The mounting claws 44 can be inserted into the mounting holes to further fix the second mounting plate 4.

[0054] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this innovative technical solution.

Claims

1. A hair clipper drive structure characterized by comprising: The utility model relates to a hair clipper, comprising: a driving device (6) having a driving shaft (61); a driving sleeve (5) having one end fixedly sleeved on the driving shaft (61) and the other end having an eccentric shaft (51) whose axis is parallel to but not coincident with the axis of the driving shaft (61); a swing wheel (52) installed on the eccentric shaft (51); a swing piece (1) having a cam driving groove (11) at one end and an installation head (17) integrally formed at the other end for connecting a cutter head; the swing wheel (52) can be installed into the cam driving groove (11) and can drive the swing piece (1) to swing left and right by driving the cam driving groove (11) under the driving of the driving device (6); the installation head (17) is adapted to be inserted and installed together with the cutter head; a first installation plate (2) fixedly installed at the bottom of the swing piece (1); resilient steel sheets (3) at least two in number, each having one end fixedly installed on the two sides of the first installation plate (2); a second installation plate (4) adapted to be fixedly installed on a hair clipper, and the other ends of the at least two resilient steel sheets (3) being fixedly installed on the two sides of the second installation plate (4); the swing piece (1) drives the first installation plate (2) to swing and further drives one end of the resilient steel sheet (3) to swing relative to the other end; the resilient steel sheet (3) can drive the swing piece (1) to swing when it rebounds.

2. The hair clipper drive structure of claim 1, wherein: The thickness of the resilient steel sheet (3) is at least 0.06 mm; at least 10 resilient steel sheets (3) are installed on the two sides of the first installation plate (2) and the second installation plate (4) respectively.

3. The hair clipper drive structure of claim 1, wherein: The thickness of the resilient steel sheet (3) is at least 0.09 mm; at least 3 resilient steel sheets (3) are installed on the two sides of the first installation plate (2) and the second installation plate (4) respectively.

4. The hair clipper drive structure of claim 1, wherein: One end of the resilient steel sheet (3) is fixedly installed on the first installation plate (2) through a first installation structure; the first installation structure comprises: two first connecting plates (21) integrally formed on the two sides of the first installation plate (2) respectively; at least two first riveting columns (32) formed on the outer side walls of the two first connecting plates (21) respectively; a first connecting through hole (31) formed on one end of the resilient steel sheet (3) opposite to the first riveting column (32); the first riveting column (32) is fixedly connected with the first connecting through hole (31) through riveting, thereby fixing one end of the resilient steel sheet (3) on the first installation plate (2).

5. The hair clipper drive structure of claim 1, wherein: The other end of the resilient steel sheet (3) is fixedly installed on the second installation plate (4) through a second installation structure; the second installation structure comprises: two second connecting plates (41) integrally formed on the two sides of the second installation plate (4) respectively; at least two second riveting columns (34) formed on the outer side walls of the two second connecting plates (41) respectively; Second connecting through hole (33), with the second rivet pressure column (34) opposite is set up in the other end of the elastic steel sheet (3) on;The second rivet pressure column (34) is fixedly connected with the second connecting through hole (33) through the way of riveting, so that the other end of the elastic steel sheet (3) is fixedly installed on the second mounting plate (4).

6. The hair clipper drive structure of claim 1, wherein: The bottom of the swing piece (1) is provided with two first internally threaded blind holes (12), and the first mounting plate (2) is provided with two first mounting through holes (23) opposite to the first internally threaded blind holes (12). A first mounting bolt is used to pass through the first mounting through hole (23) and the first internally threaded blind hole (12) to be screwed, so that the first mounting plate (2) is fixedly installed on the swing piece (1).

7. The hair clipper drive structure of claim 6, wherein: The bottom of the swing piece (1) is provided with two first internally threaded blind holes (12), and the first mounting plate (2) is provided with two first mounting through holes (23) opposite to the first internally threaded blind holes (12). A first mounting bolt is used to pass through the first mounting through hole (23) and the first internally threaded blind hole (12) to be screwed, so that the first mounting plate (2) is fixedly installed on the swing piece (1).

8. The hair clipper drive structure of claim 1, wherein: The eccentric shaft (51) is provided with an annular mounting groove (53) near the free end; Further comprising an elastic check ring (54), can be fixedly installed in the annular mounting groove (53), for limiting the swing wheel (52).

9. The hair clipper drive structure of claim 1, wherein: The two sides of the swing piece (1) are formed with a first reinforcing rib (14) near one end of the cam driving groove (11), a recess (15) is formed at the top, and a second reinforcing rib (16) is formed inside the recess (15).

10. The hair clipper drive structure of claim 1, wherein: The second mounting plate (4) is provided with two second mounting through holes (43) and mounting claws (44) on both sides, and the second mounting plate (4) can be installed on the hair cutter through the second mounting through holes (43) and the mounting claws (44).

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