Single-shaft double-speed output pendulum type hair trimming tool

Abstract

The utility model relates to a single-shaft double-speed output pendulum type hair trimming tool which is characterized in that a movable cutter is arranged on a rotating shaft of a driving mechanism, and the rotating shaft drives the movable cutter to rotate along a static cutter at a first rotating speed; the rotating shaft is sleeved with a coaxial transmission piece, and the static cutter is detachably installed on the transmission piece. When the rotating shaft drives the moving blade to rotate relative to the static blade at a first rotating speed, the transmission piece synchronously rotates along with the rotating shaft at a second rotating speed to drive the static blade to rotate relative to the moving blade in a swinging mode, and the second rotating speed of the transmission piece is lower than the first rotating speed of the rotating shaft. The utility model has the beneficial effects that the transmission part is in transmission connection with the rotating shaft, when the rotating shaft rotates at the first rotating speed, the transmission part can synchronously rotate along with the movable cutter at the second rotating speed, and the output power of the driving mechanism is utilized to the greatest extent to realize the output at two different rotating speeds, so that the static cutter synchronously rotates in a pendulum manner relative to the movable cutter; the energy utilization benefit is improved; a transmission structure is optimized, the production cost is saved, and the internal space occupation of the trimmer is reduced.

Description

Technical Field

[0001] The utility model relates to a hair trimming tool, in particular to a single-shaft double-speed output pendulum-type hair trimming tool, which is mainly used in the field of hair trimming. Background Art

[0002] Existing hair trimmers, especially rotary hair trimmers, such as nose hair trimmers and rotary shavers, basically have a ring-shaped static blade and a dynamic blade that rotates and cuts along the inner surface of the static blade. At present, static blades are basically fixed by a static blade holder, which means that the direction of the hair inlet hole set in the static blade is fixed, while the hair on the human body is affected by external factors such as space and environment, and its growth direction must be different. Therefore, there will inevitably be some hairs whose growth direction is inconsistent with the direction of the hair inlet hole in the static blade. When the static blade is fixed, hair with different growth directions is not easy to enter the static blade, which reduces the hair feeding efficiency of the static blade.

[0003] Secondly, when the hair enters the static blade through the hair inlet hole, the hair entry angle will basically not change. If the hair entry angle of the static blade is opposite to the rotation direction of the moving blade, when the moving blade contacts and pushes the hair, the hair will be restricted by the inner wall of the static blade entrance hole and a reaction force will be formed, thereby facilitating the moving blade to cut the hair. If the hair entry angle of the static blade is the same as the rotation direction of the moving blade, especially the hair in front of the moving blade's rotation trajectory, when the moving blade contacts and pushes the hair, it will only run over the hair, especially when the clearance between the moving blade and the static blade is larger than the hair diameter. Therefore, the hair trimming efficiency of a fixed static blade is relatively poor. Utility Model Content

[0004] In order to solve the above technical problems, the present invention provides a single-axis dual-speed output pendulum-type hair trimming tool. When the hair trimming tool uses the rotating shaft of the driving mechanism to drive the movable knife to rotate and cut relative to the static knife at a first speed, the transmission member integrated outside the rotating shaft synchronously drives the static knife to rotate relative to the movable knife at a second speed in a pendulum-like manner, so that the static knife can be dynamically adjusted in real time, which not only facilitates the entry of hair with different growth directions through the hair entry hole and improves the hair entry efficiency of the static knife; at the same time, the inclination angle of the hair entering the static knife can be adjusted, thereby facilitating the trimming of hair by the movable knife and improving the hair trimming efficiency.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is a single-axis dual-speed output pendulum-type hair trimming tool, including a body and a cutter head assembly installed on the body, a driving mechanism is installed in the body, and the cutter head assembly includes a stationary cutter and a movable cutter; the movable cutter is installed on the rotating shaft of the driving mechanism, and the rotating shaft drives the movable cutter to rotate along the stationary cutter at a first speed; a coaxial and clearance-fitted transmission member is provided on the outer sleeve of the rotating shaft, and the transmission member is transmission-connected with the rotating shaft, and the stationary cutter is detachably installed on the transmission member; when the rotating shaft drives the moving cutter to rotate relative to the stationary cutter at a first speed, the transmission member rotates synchronously with the rotating shaft at a second speed to drive the stationary cutter to rotate relative to the moving cutter in a pendulum-like manner, and the second speed of the transmission member is lower than the first speed of the rotating shaft.

[0006] Preferably, the stationary knife is detachably mounted on the adapter seat, the adapter seat is linked to the swinging piece, and the swinging piece is placed above the transmission member and is transmission-connected to the transmission member; when the rotating shaft rotates at a first speed, the transmission member synchronously rotates at a second speed to drive the swinging piece to swing back and forth, and drives the adapter seat and the stationary knife mounted on the adapter seat to rotate in a pendulum-like motion relative to the moving knife.

[0007] Preferably, a spline is provided on the rotating shaft and a main gear is fixed at the spline, and the main gear rotates synchronously with the first speed of the rotating shaft; the transmission member is connected to the main gear and rotates synchronously in the opposite direction at a second speed lower than the first speed of the rotating shaft, driving the swing plate and the adapter to rotate in a pendulum-like motion.

[0008] Preferably, the transmission member includes a transmission plate, a sub-gear and a gear sleeve. The gear sleeve is in the shape of a hollow ring and is provided with a plurality of transmission teeth on its inner circumferential side wall. The transmission plate is provided with at least one sleeve which is arranged outside the rotating shaft and is coaxially clearance-matched with the rotating shaft. The sub-gear is mounted on the transmission plate and respectively meshes with the main gear mounted on the rotating shaft and the transmission teeth in the gear sleeve; one end of the gear sleeve is connected and fixed to the outer casing of the driving mechanism, and the other end rotatably confines the transmission plate in the gear sleeve so that one end of the transmission plate protrudes outside the gear sleeve and is transmission-connected to the swing plate.

[0009] Preferably, the transmission plate comprises a first reduction plate, a second reduction plate and a third reduction plate which are stacked along the rotating shaft and sleeved with a clearance fit outside the rotating shaft. The first reduction plate can rotatably fit with the gear sleeve and its end face is placed outside the gear sleeve and is transmission-connected to the swing plate; secondary gears are respectively provided on the upper end faces of the second reduction plate and the third reduction plate; a plurality of gear shafts in a planetary distribution are respectively provided on the lower end faces of each reduction plate and sub-gears are respectively installed outside each gear shaft, and the sub-gears installed on the lower end face of the first reduction plate are respectively meshed with the secondary gears on the upper end face of the second reduction plate and the transmission teeth on the gear sleeve; the sub-gear installed on the lower end face of the second reduction plate is meshed with the secondary gears on the third reduction plate and the transmission teeth on the gear sleeve; the sub-gear installed on the lower end face of the third reduction plate is meshed with the main gear outside the rotating shaft and the transmission teeth on the gear sleeve, so that the second rotation speed of the first reduction plate is lower than the first rotation speed of the rotating shaft, and the first reduction plate and the rotating shaft rotate in opposite directions.

[0010] Preferably, the first reduction disc comprises a circular substrate with a central axis hole, and three gear shafts are provided along the central axis hole in a circular array and fixed to the bottom end surface of the circular substrate; a protruding limit platform is provided on the upper end surface of the circular substrate, and the limit platform is inserted into the limit hole in the gear sleeve with a clearance fit, and the upper end surface of the limit platform is flush with the upper end surface of the gear sleeve so that the first reduction disc can be rotatably confined in the gear sleeve; an eccentric wheel is provided above the limit platform along the central axis hole, and a long hole is provided on the swinging plate and is sleeved outside the eccentric wheel. When the first reduction disc rotates at the second speed, the eccentric wheel synchronously drives the swinging plate to swing back and forth and drives the adapter connected to the swinging plate to rotate in a pendulum-like manner.

[0011] Preferably, a hinge hole and a drive block are also provided on the swinging plate, and the hinge hole, the drive block and the long hole are arranged along the same axis, and the drive block and the long hole are located on both sides of the hinge hole; a hinge column is provided on the upper end face of the gear sleeve, and the hinge hole is sleeved outside the hinge column so that the swinging plate and the gear sleeve are hinged; a swinging groove is provided on the adapter seat and the drive block on the swinging plate is inserted into the swinging groove, so that when the first reduction plate rotates at the second speed to drive the swinging plate to swing back and forth, the adapter seat drives the stationary knife to rotate in a pendulum-like manner.

[0012] Preferably, the adapter is ring-shaped and includes a base and a plug-in ring. A fan-shaped groove is provided on the base, and a swing groove is provided on the peripheral side wall of the plug-in ring and is located above the fan-shaped groove. One end of the swing plate is placed in the fan-shaped groove and the drive block is inserted into the swing groove above. When the first reduction plate rotates at the second speed to drive the swing plate to swing back and forth, the adapter drives the stationary knife to rotate in a pendulum-like motion.

[0013] Preferably, the gear sleeve is detachably connected and fixed to the base, and the base is placed on an end surface of a rotating shaft of the driving mechanism and is fixedly connected to the driving mechanism.

[0014] Preferably, two hook rings and positioning holes are relatively provided on the outer peripheral side wall of the gear sleeve, and corresponding positions of the base are provided with barbed pins and positioning inserts. Each pin and positioning insert can be inserted into the hook ring and the positioning hole respectively to make the gear sleeve and the base detachably connected and fixed.

[0015] The beneficial effect of the utility model is that a transmission member installed coaxially is arranged outside the rotating shaft, and the transmission member is connected to the rotating shaft by transmission, and when the rotating shaft rotates at a first speed, the transmission member rotates synchronously at a second speed to output kinetic energy and drives the static knife to rotate in a pendulum-like manner relative to the moving knife, so as to achieve real-time adjustment of the dynamics of the static knife, so that hair with different growth directions can smoothly enter the static knife through the hair inlet hole or the hair inlet groove to be trimmed by the passive knife, and the inclination angle of the hair entering the static knife is adjusted, so as to facilitate the trimming of the hair and improve the hair trimming efficiency of the trimming tool. Secondly, by using the transmission member to be connected to the rotating shaft by transmission, when the rotating shaft rotates at a first speed, the transmission member can rotate synchronously with the moving knife at a second speed, and the output power of the driving mechanism is maximized to achieve the output of two different speeds, so that the static knife is synchronously rotated in a pendulum-like manner relative to the moving knife, thereby improving the energy utilization efficiency; the transmission structure is optimized, and there is no need to set different driving mechanisms to drive the relative movement of the static knife and the moving knife respectively, thereby saving production costs and reducing the internal space occupied by the hair trimmer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a single-axis dual-speed output pendulum hair trimming tool according to an embodiment of the utility model

[0017] Figure 2 A three-dimensional assembly diagram of a single-axis dual-speed output pendulum hair trimming tool according to an embodiment of the utility model

[0018] Figure 3 A three-dimensional assembly diagram of the transmission member in the embodiment of the utility model

[0019] Figure 4 This is a three-dimensional assembly diagram of the transmission part and the swing part in the embodiment of the utility model

[0020] Figure 5 A three-dimensional cross-sectional view of a transmission member in an embodiment of the utility model

[0021] Figure 6 A three-dimensional structural diagram of the driving mechanism in the embodiment of the utility model

[0022] Figure 7 The three-dimensional structure diagram of the adapter in the embodiment of the utility model

[0023] Figure 8 The three-dimensional structure diagram of the swing plate in the embodiment of the utility model

[0024] Fig. 9This is a front three-dimensional structural diagram of the first speed reduction disc in the embodiment of the utility model

[0025] Fig.10 This is a three-dimensional structural diagram of the back side of the first speed reduction disc in the embodiment of the utility model.

[0026] Fig.11 This is a front perspective structural diagram of the second speed reduction disc in the embodiment of the utility model.

[0027] Fig.12 This is a three-dimensional structural diagram of the back side of the second speed reduction plate in the embodiment of the utility model.

[0028] Fig.13 This is a front view of the gear sleeve in the embodiment of the utility model

[0029] Fig.14 This is a bottom view of the gear sleeve in the embodiment of the utility model.

[0030] Fig.15 A three-dimensional structural diagram of the base in the embodiment of the utility model

[0031] Fig.16 The three-dimensional structure diagram of the static knife seat in the embodiment of the utility model DETAILED DESCRIPTION

[0032] The following is combined with Figures 1 to 16 The implementation mode of the utility model is further described as follows:

[0033] The technical solution adopted by the utility model is a single-axis dual-speed output pendulum-type hair trimming tool, comprising a body 1 and a cutter head assembly mounted on the body 1, a driving mechanism 2 is mounted in the body 1, the driving mechanism 2 is a motor, and the power supply is provided by a battery 3. The cutter head assembly comprises a stationary cutter 4 and a moving cutter 5, the stationary cutter 4 is used to capture and introduce hair, that is, a hair inlet groove or hair inlet hole for hair to enter is provided on the stationary cutter 4, the moving cutter 5 is mounted on a rotating shaft 21 of the driving mechanism 2, and the rotating shaft 21 drives the moving cutter 5 to rotate along the stationary cutter 4 at a first speed to cut hair. To facilitate hair trimming, a coaxial and clearance-fitted transmission member 6 is provided on the outer sleeve of the rotating shaft 21, and the transmission member 6 is connected to the rotating shaft 21 in transmission connection. The stationary knife 4 is detachably mounted on the transmission member 6 and is coaxial with the movable knife 5. When the rotating shaft 21 drives the movable knife 5 to rotate relative to the stationary knife 4 at a first speed, the transmission member 6 rotates synchronously with the rotating shaft 21 at a second speed to drive the stationary knife 4 to rotate relative to the movable knife 5 in a clockwise swinging manner. The second speed of the transmission member 6 is lower than the first speed of the rotating shaft 21. By arranging a transmission member 6 coaxially mounted outside the rotating shaft 21, and the transmission member 6 is connected to the rotating shaft 21, and when the rotating shaft 21 rotates at a first speed, the transmission member 6 rotates synchronously at a second speed to output kinetic energy and drives the static knife 4 to perform a pendulum-like rotational motion relative to the moving knife 5, so as to achieve dynamic real-time adjustment of the static knife 4, so that hair with different growth directions can smoothly enter the static knife 4 through the hair inlet hole or the hair inlet groove to be trimmed by the moving knife 5, and adjust the inclination angle of the hair entering the static knife 4, so as to facilitate the trimming of the hair and improve the hair trimming efficiency of the trimming tool. Secondly, by using the transmission member 6 to be connected to the rotating shaft 21, when the rotating shaft 21 rotates at a first speed, the transmission member 6 can rotate synchronously with the moving knife 5 at a second speed, and the output power of the driving mechanism 2 is maximized to achieve the output of two different speeds, so that the static knife 4 is synchronously rotated in a pendulum-like manner relative to the moving knife 5, and the energy utilization efficiency is improved; the transmission structure is optimized, and there is no need to set different driving mechanisms 2 to respectively drive the relative motion of the static knife 4 and the moving knife 5, thereby saving production costs and reducing the internal space occupied by the hair trimmer.

[0034] In actual use, since the static blade 4 needs to take into account both the introduction of hair and the trimming of hair with the moving blade 5, the second speed of the transmission member 6 must be lower than the first speed of the rotating shaft 21. If it rotates too fast, the hair cannot enter the static blade 4 through the hair inlet hole and the hair inlet groove. The first speed is the rated output speed of the motor shaft 21, and the second speed is formed by deceleration on the basis of the first speed. The deceleration can be one-stage deceleration or multi-stage deceleration, which can be determined according to actual needs. Therefore, the second speed is not a specific value, but is only used to limit the rotation speed of the transmission member 6 to be lower than the rotating shaft 21, which is specially explained.

[0035] In order to realize the pendulum-like rotational motion of the stationary knife 4 relative to the moving knife 5, the stationary knife 4 is detachably mounted on the adapter seat 7, the adapter seat 7 is linked with the swinging piece 8, and the swinging piece 8 is placed above the transmission member 6 and is transmission-connected with the transmission member 6; the adapter seat 7 is not only used for the assembly and disassembly of the stationary knife 4, but also improves the assembly efficiency; at the same time, through the cooperation between the adapter seat 7 and the swinging piece 8, when the shaft 21 rotates at the first speed and the transmission member 6 rotates synchronously at the second speed, the swinging piece 8 can change the rotational motion of the transmission member 6 into reciprocating swinging, thereby driving the adapter seat 7 and the stationary knife 4 mounted on the adapter seat 7 to perform a pendulum-like rotational motion relative to the moving knife 5. Of course, according to user needs, the swinging piece 8 or the adapter seat 7 is not provided, and the stationary knife 4 is directly detachably connected with the transmission member 6. When the shaft 21 rotates at the first speed, the transmission member 6 can synchronously drive the stationary knife 4 to rotate in the same or opposite direction relative to the moving knife 5 at the second speed. However, without the swing plate 8 and the adapter 7, the rotational motion of the transmission member 6 cannot be changed into reciprocating swing, so that the stationary knife 4 cannot perform pendulum-like rotational motion relative to the movable knife 5. Therefore, the implementation of this embodiment is the preferred implementation.

[0036] In order to realize that the single-axis motor synchronously outputs two different speeds of kinetic energy to drive the static knife 4 and the moving knife 5 to move and realize hair trimming, a spline 22 is provided on the rotating shaft 21 and a main gear 23 is fixed at the spline 22. The main gear 23 rotates synchronously with the first speed of the rotating shaft 21 to drive the swing plate 8 and the adapter 7 to rotate in a pendulum-like manner. By providing the spline 22 on the rotating shaft 21 and using the spline 22 to fix the main gear 23. During use, the transmission member 6 can mesh with the main gear 23 and synchronously drive the swing plate 8 to swing back and forth at a second speed lower than the first speed of the rotating shaft 21, and the swing plate 8 can drive the adapter 7 to rotate in a pendulum-like manner, realizing the dual-speed output of the single-axis motor, without adding an additional driving mechanism 2 (i.e., a motor), saving the cost of accessories, changing the traditional transmission method and optimizing the transmission structure, and thus greatly reducing the space occupied by the driving mechanism 2.

[0037] In order to realize the output of two different speeds of the single-axis motor, the transmission member 6 includes a transmission disc 61, a sub-gear 62 and a gear sleeve 63. The gear sleeve 63 is in a hollow ring shape and is provided with a plurality of transmission teeth 64 on its inner peripheral side wall. The transmission disc 61 is provided with at least one sleeve disposed outside the rotating shaft 21 and coaxially with the rotating shaft 21 with clearance fit. By adopting clearance fit, the friction resistance between the transmission disc 61 and the rotating shaft 21 can be reduced, and the transmission disc 61 can also move independently relative to the rotating shaft 21. The sub-gear 62 is mounted on the transmission disc 61 and meshes with the main gear 23 mounted on the rotating shaft 21 and the transmission teeth 64 in the gear sleeve 63 respectively. By installing a plurality of sub-gears 62 on the transmission disc 61, when in use, the sub-gears 62 can be used to mesh with the main gear 23 on the rotating shaft 21 and the transmission teeth 64 on the peripheral side wall of the gear sleeve 63 to form a transmission connection. When the rotating shaft 21 rotates and drives the main gear 23 to rotate, the secondary gear 62 will make a circular motion along the transmission teeth 64 on the inner wall of the gear sleeve 63, so that the transmission disc 61 can independently move in the opposite direction relative to the rotating shaft 21 to output kinetic energy to form a double-speed output of the single-axis motor. Of course, the gear sleeve 63 and the transmission teeth 64 can also be omitted. It is only necessary to set the secondary gear 62 and the transmission disc 61 to be fixedly connected and non-rotatable, and use the main gear 23 to directly transfer kinetic energy to the secondary gear 62, so that the transmission disc 61 can also form an independent rotation in the opposite direction relative to the rotating shaft 21 to form a double-speed output. However, if the gear sleeve 63 and the transmission teeth 64 are not provided, the "reduction ratio" between the main gear 23 and the secondary gear 62 is small, so that the transmission disc 61 rotates too fast, which cannot meet the requirements of the static knife 4 to capture and introduce hair; and the running stability is poor, and the transmission disc 61 is prone to axial up and down movement and tooth skipping between the main gear 23 and the secondary gear 62. Therefore, in this embodiment, for the sake of running stability and reduction ratio, a gear sleeve 63 is added and transmission teeth 64 are set on the inner wall of the gear sleeve 63. The number of transmission teeth 64 is utilized to maximize the reduction ratio, and the second rotation speed of the transmission disk 61 is slowed down to meet the hair introduction and capture requirements of the static knife 4.

[0038] In order to ensure the rotation stability of the transmission disk 61 to the greatest extent, one end of the gear sleeve 63 is connected and fixed to the outer shell of the driving mechanism 2. Since the sub-gear 62 installed on the transmission disk 61 makes a circular motion along the transmission teeth 64 in the gear sleeve 63 to drive the transmission disk 61 to rotate in the opposite direction along the rotating shaft 21, the stability of the gear sleeve 63 is directly related to the running stability of the transmission disk 61. In view of this, forming a detachable fixed connection between one end of the gear sleeve 63 and the outer shell of the driving mechanism 2 can not only ensure the rotation stability of the transmission disk 61, but also ensure the hair trimming performance of the hair trimmer; at the same time, it can also facilitate the production and assembly of the gear sleeve 63, thereby improving the production and assembly efficiency. The other end of the gear sleeve 63 is used to rotatably restrict the transmission disk 61 in the gear sleeve 63, so that one end of the transmission disk 61 protrudes from the gear sleeve 63 and is in transmission connection with the swing plate 8; when the secondary gear 62 drives the transmission disk 61 to rotate, the end of the gear sleeve 63 can play a limiting role to prevent the transmission disk 61 from axial movement, thereby ensuring that the secondary gear 62 and the main gear 23 and the transmission tooth 64 are always in meshing state, avoiding tooth jumping between gears, and ensuring the hair trimming performance of the hair trimmer.

[0039] Since the rated speed of the motors used in existing personal care products such as electric rotary shavers or nose hair removers is at least 3000 rpm, and the speed of the static blade 4 in electric rotary shavers or nose hair removers cannot be too fast, the second speed of the transmission disc 61 must be decelerated to adapt to the introduction and capture of hair by the static blade 4. In order to achieve the deceleration of the transmission disc 61, the transmission disc 61 includes a first reduction disc 611, a second reduction disc 612 and a third reduction disc 613 stacked along the rotating shaft 21 and sleeved on the outside of the rotating shaft 21 with clearance fit, the first reduction disc 611 can be rotatably matched with the gear sleeve 63 and its end face is placed outside the gear sleeve 63 and is transmission-connected to the swing plate 8; secondary gears 65 are respectively provided on the upper end faces of the second reduction disc 612 and the third reduction disc 613; a plurality of gear shafts 614 in a planetary distribution are respectively provided on the lower end faces of each reduction disc, and a sub-gear 62 is respectively installed outside each gear shaft 614, which is installed on the first reduction disc 61. The auxiliary gear 62 on the lower end surface of the first reduction plate 611 meshes with the secondary gear 65 on the upper end surface of the second reduction plate 612 and the transmission gear 64 on the gear sleeve 63 respectively; the auxiliary gear 62 installed on the lower end surface of the second reduction plate 612 meshes with the secondary gear 65 of the third reduction plate 613 and the transmission gear 64 on the gear sleeve 63; the auxiliary gear 62 installed on the lower end surface of the third reduction plate 613 meshes with the main gear 23 outside the rotating shaft 21 and the transmission gear 64 on the gear sleeve 63, so that the second speed of the first reduction plate 611 is lower than the first speed of the rotating shaft 21, and the first reduction plate 611 rotates in opposite directions to the rotating shaft 21. By setting the transmission disc 61 to be a first reduction disc 611, a second reduction disc 612 and a third reduction disc 613 of three-stage reduction, the first speed of the rotating shaft 21 can be reduced to a suitable second speed without occupying a large amount of space to drive the first reduction disc 611 to rotate, so that the static blade 4 can adapt to the hairs with different growth directions to enter the static blade 4 with a low-speed pendulum-like rotation motion, thereby improving the hair introduction efficiency and trimming efficiency of the static blade 4. Of course, it can also be set as a two-stage reduction structure, such as only setting the first reduction disc 611 and the second reduction disc 612, or setting more reduction discs to achieve more stages of reduction, which can be determined according to actual needs and is not further limited in this embodiment.

[0040] In the actual assembly process, no matter the first reduction disc 611, the second reduction disc 612 or the third reduction disc 613, the auxiliary gear 62 installed at the bottom end surface thereof is meshed with the main gear 23 or the secondary gear 65 and the transmission teeth 64 on the inner wall of the gear sleeve 63, so that the corresponding first reduction disc 611, the second reduction disc 612 and the third reduction disc 613 are in a stacked state and keep a coaxial clearance fit with the rotating shaft 21. Secondly, the first reduction disc 611, the second reduction disc 612, the third reduction disc 613, the auxiliary gear 62, the secondary gear 65 and the main gear 23 are all in end-face contact. Therefore, under normal circumstances, the first reduction disc 611, the second reduction disc 612 and the third reduction disc 613 will not interfere with each other, and the multi-stage deceleration is realized to ensure that the first reduction disc 611 can output power steadily at a second speed lower than the first speed of the rotating shaft 21 to drive the stationary knife 4 to rotate relative to the moving knife 5 in a pendulum-like manner. Since the third speed reduction plate 613 and the second speed reduction plate 612 have the same structure, their structures are not repeatedly shown in the drawings of the specification.

[0041] In order to realize that the first reduction plate 611 can be rotatably limited in the gear sleeve 63 and improve the running stability of the transmission member 6, the first reduction plate 611 includes a circular substrate 6111 with a central shaft hole 6112, and the gear shaft 614 is provided with three rings along the central shaft hole 6112 and fixed to the bottom end surface of the circular substrate 6111 in a circular array; a protruding limit platform 6113 is provided on the upper end surface of the circular substrate 6111, and the limit platform 6113 is inserted into the limit hole 631 in the gear sleeve 63 with clearance fit ... The upper end surface of the positioning platform 6113 is flush with the upper end surface of the gear sleeve 63 so that the first reduction plate 611 can be rotatably confined in the gear sleeve 63; an eccentric wheel 6114 is provided above the limiting platform 6113 along the central axis hole 6112, and a long hole 81 is provided on the swing plate 8 and is sleeved outside the eccentric wheel 6114. When the first reduction plate 611 rotates at the second speed, the eccentric wheel 6114 synchronously drives the swing plate 8 to swing back and forth and drives the adapter 7 linked to the swing plate 8 to rotate in a pendulum-like motion. By setting a limit platform 6113 on the first reduction plate 611 and inserting the limit platform 6113 into the central axis hole 6112 set in the gear sleeve 63, when the first reduction plate 611 rotates with the rotating shaft 21 at the second speed, the central axis hole 6112 on the gear sleeve 63 can limit the first reduction plate 611, prevent the first reduction plate 611 and the second reduction plate 612 and the third reduction plate 613 below the first reduction plate 611 from axial movement, thereby improving the overall stability of the operation of the transmission plate 61.

[0042] In order to facilitate the swing plate 8 to change from rotational motion to pendulum-like reciprocating motion under the drive of the first reduction disc 611, an eccentric wheel 6114 is provided above the limit platform 6113 of the circular substrate 6111, and a long hole 81 is provided on the swing plate 8. The long hole 81 is sleeved on the outside of the eccentric wheel 6114. When the first reduction disc 611 rotates with the rotating shaft 21 at the second speed, the eccentric wheel 6114 can change the rotational motion of the first reduction disc 611 into the pendulum-like reciprocating motion of the swing plate 8. Since the stationary knife 4 is connected to the swing plate 8 through the adapter 7, when the first reduction disc 611 drives the swing plate 8 to swing back and forth in a pendulum-like manner, the adapter 7 can synchronously follow the swing plate 8 to realize the pendulum-like rotational motion, so that the stationary knife 4 installed on the adapter 7 forms a pendulum-like rotational motion relative to the moving knife 5.

[0043] In order to change the rotational motion of the first reduction plate 611 into a pendulum-like reciprocating swing through the swing plate 8, and to utilize the swing plate 8 to drive the adapter seat 7 and the stationary knife 4 installed on the adapter seat 7 to perform a pendulum-like rotational motion relative to the movable knife 5, a hinge hole 82 and a drive block 83 are also provided on the swing plate 8. The hinge hole 82, the drive block 83 and the long hole 81 are arranged along the same axis, and the drive block 83 and the long hole 81 are located on both sides of the hinge hole 82; a hinge column 632 is provided on the upper end surface of the gear sleeve 63, and the hinge hole 82 is sleeved outside the hinge column 632 so that the swing plate 8 is hinged to the gear sleeve 63; a swing groove 74 is provided on the adapter seat 7, and the drive block 83 on the swing plate 8 is inserted into the swing groove 74, so that when the first reduction plate 611 rotates at the second speed to drive the swing plate 8 to swing back and forth, the adapter seat 7 drives the stationary knife 4 to perform a pendulum-like rotational motion. By setting a hinge column 632 on the upper end surface of the gear sleeve 63, and using the hinge hole 82 set on the swing plate 8 to be sleeved on the hinge column 632, when the first reduction plate 611 rotates with the rotating shaft 21 at the second speed, the eccentric wheel 6114 on the first reduction plate 611 can drive the swing plate 8 to swing back and forth along the hinge column 632 on the gear sleeve 63. At this time, the driving block 83 set on the swing plate 8 synchronously drives the swing groove 74 to swing left and right, so that the adapter seat 7 and the stationary knife 4 installed on the adapter seat 7 form a pendulum-like rotation motion relative to the rotating shaft 21 and the movable knife 5.

[0044] In order to change the rotational motion of the first reduction disc 611 into a pendulum-like rotational motion, the adapter 7 is annular and includes a base 71 and a plug-in ring 72. A fan-shaped notch 73 is provided on the base 71. A swinging groove 74 is provided on the peripheral side wall of the plug-in ring 72 and is located above the fan-shaped notch 73. One end of the swinging piece 8 is placed in the fan-shaped notch 73 and the driving block 83 is inserted into the swinging groove 74 above. When the first reduction disc 611 rotates at the second speed to drive the swinging piece 8 to swing back and forth, the adapter 7 drives the stationary blade 4 to rotate in a pendulum-like manner. The fan-shaped notch 73 is provided on the base 71 of the adapter 7 to make room for the swinging piece 8 to swing, thereby preventing interference with the reciprocating swing of the swinging piece 8. A swing groove 74 is provided above the fan-shaped notch 73. During assembly, the driving block 83 provided on the swing plate 8 is inserted into the swing groove 74. When the first reduction plate 611 rotates with the rotating shaft 21 at the second speed, the swing plate 8 swings back and forth relative to the first reduction plate 611 driven by the eccentric wheel 6114. At this time, the adapter seat 7 changes the adapter seat 7 into a pendulum-type rotational motion under the cooperation of the driving block 83 and the swing groove 74. During assembly, the stationary knife 4 is installed on the stationary knife seat 41, and the stationary knife seat 41 is inserted outside the plug ring 72 so that the stationary knife 4 is detachably connected and fixed to the adapter seat 7.

[0045] Since the transmission teeth 64 are arranged on the inner side wall of the gear sleeve 63, in order to facilitate the production, processing and assembly of the transmission teeth 64, the gear sleeve 63 is detachably connected and fixed to the base 9, and the base 9 is placed on the end surface of one end of the rotating shaft 21 of the driving mechanism 2 and is fixedly connected to the housing of the driving mechanism 2. By detachably connecting and fixing the gear sleeve 63 and the base 9, at least one end of the gear sleeve 63 can be set to an open shape, so that it is convenient to process the inner side wall of the gear sleeve 63 to form the transmission teeth 64.

[0046] In order to facilitate the quick assembly and disassembly of the gear sleeve 63 and the base 9, two hook rings 633 and positioning holes 634 are arranged on the outer peripheral side wall of the gear sleeve 63, and corresponding positions of the base 9 are provided with barbed pins 91 and positioning inserts 92, respectively. Each pin 91 and positioning insert 92 can be inserted into the hook ring 633 and the positioning hole 634 respectively to detachably connect and fix the gear sleeve 63 to the base 9. By providing the hook ring 633 and the corresponding pin 91, the pin 91 can be directly inserted into the hook ring 633 during assembly, which can greatly improve the assembly efficiency of the gear.

[0047] To facilitate the assembly of the static knife 4, the static knife is installed on the static knife seat 41. The inner diameter of the static knife seat 41 matches the outer diameter of the plug-in ring 72 and is sleeved outside the plug-in ring 72. A locking block 411 is provided on the inner side wall of the static knife seat 41, and a rotation locking groove 721 is provided on the outer side wall of the plug-in ring 72. When the static knife seat 41 is sleeved outside the plug-in ring 72, the static knife seat 41 is rotated by a certain angle, and the locking block 411 can be rotated to the inside of the rotation locking groove 721, so that the static knife seat 41 and the plug-in ring 72 form a rigid fixed connection. When it is necessary to disassemble or replace the cutter head assembly, the static knife seat 41 only needs to be rotated in the opposite direction to disengage the locking block 411 from the rotation locking groove 721, thereby realizing a detachable fixed connection between the static knife seat 41 and the plug-in ring 72. Since the stationary knife seat 41 needs to rotate at the second speed following the first reduction plate 611, a gap is set between the bottom end surface of the stationary knife seat 41 and the upper end surface of the machine body 1 to avoid increasing the rotation resistance of the first reduction plate 611 due to contact between the stationary knife seat 41 and the machine body 1.

[0048] The hair trimming tool in this embodiment can be selected from nose hair trimmer, razor, hair shaver, etc. according to user requirements or market demand.

[0049] The above embodiments should not be regarded as limiting the present invention, but any improvements based on the spirit of the present invention should be within the protection scope of the present invention.

Claims

1. A single-axis dual-speed output pendulum hair trimming tool, comprising a body (1) and a cutter head assembly mounted on the body (1), a driving mechanism (2) being mounted in the body (1), and the cutter head assembly comprising a stationary cutter (4) and a movable cutter (5); characterized in that The movable knife (5) is mounted on a rotating shaft (21) of a driving mechanism (2), and the rotating shaft (21) drives the movable knife (5) to rotate along the stationary knife (4) at a first rotation speed; a transmission member (6) coaxially and clearance-matched is arranged on the outer surface of the rotating shaft (21), and the transmission member (6) is transmission-connected with the rotating shaft (21), and the stationary knife (4) is detachably mounted on the transmission member (6); when the rotating shaft (21) drives the movable knife (5) to rotate relative to the stationary knife (4) at a first rotation speed, the transmission member (6) rotates synchronously with the rotating shaft (21) at a second rotation speed, driving the stationary knife (4) to rotate relative to the movable knife (5) in a clockwise swinging manner, and the second rotation speed of the transmission member (6) is lower than the first rotation speed of the rotating shaft (21).

2. A single-axis dual-speed output pendulum hair trimming tool according to claim 1, characterized in that The stationary knife (4) is detachably mounted on the adapter seat (7), the adapter seat (7) is linked to the swing plate (8), and the swing plate (8) is placed above the transmission member (6) and is transmission-connected to the transmission member (6); when the rotating shaft (21) rotates at a first speed, the transmission member (6) synchronously rotates at a second speed to drive the swing plate (8) to swing back and forth, and drives the adapter seat (7) and the stationary knife (4) mounted on the adapter seat (7) to perform pendulum-like rotational motion relative to the moving knife (5).

3. A single-axis dual-speed output pendulum hair trimming tool according to claim 1, characterized in that A spline (22) is provided on the rotating shaft (21) and a main gear (23) is fixed at the spline (22). The main gear (23) rotates synchronously with a first rotation speed of the rotating shaft (21). The transmission member (6) is connected to the main gear (23) and rotates synchronously in the opposite direction at a second rotation speed lower than the first rotation speed of the rotating shaft (21), driving the swing plate (8) and the adapter seat (7) to perform pendulum-like rotational motion.

4. A single-axis dual-speed output pendulum hair trimming tool according to any one of claims 1 to 3, characterized in that The transmission member (6) comprises a transmission disc (61), a sub-gear (62) and a gear sleeve (63); the gear sleeve (63) is in a hollow ring shape and is provided with a plurality of transmission teeth (64) on its inner peripheral side wall; the transmission disc (61) is provided with at least one gear sleeved outside the rotating shaft (21) and coaxially clearance-matched with the rotating shaft (21); the sub-gear (62) is mounted on the transmission disc (61) and meshes with the main gear (23) mounted on the rotating shaft (21) and the transmission teeth (64) in the gear sleeve (63) respectively; one end of the gear sleeve (63) is connected and fixed to the housing of the driving mechanism (2); the other end of the gear sleeve (63) rotatably limits the transmission disc (61) in the gear sleeve (63) so that one end of the transmission disc (61) protrudes outside the gear sleeve (63) and is transmission-connected to the swing plate (8).

5. A single-axis dual-speed output pendulum hair trimming tool according to claim 4, characterized in that The transmission plate (61) comprises a first reduction plate (611), a second reduction plate (612) and a third reduction plate (613) which are stacked along the rotating shaft (21) and sleeved outside the rotating shaft (21) with clearance fit. The first reduction plate (611) can be rotatably matched with the gear sleeve (63) and its end surface is arranged outside the gear sleeve (63) and is transmission-connected with the swing plate (8); secondary gears (65) are respectively arranged on the upper end surfaces of the second reduction plate (612) and the third reduction plate (613); a plurality of gear shafts (614) distributed in a planetary manner are respectively arranged on the lower end surfaces of each reduction plate, and a sub-gear (62) is respectively installed outside each gear shaft (614); the sub-gear (62) installed on the lower end surface of the first reduction plate (611) is arranged on the lower end surface of the first reduction plate (611). 2) respectively mesh with the secondary gear (65) on the upper end surface of the second reduction plate (612) and the transmission teeth (64) on the gear sleeve (63); the secondary gear (62) installed on the lower end surface of the second reduction plate (612) meshes with the secondary gear (65) of the third reduction plate (613) and the transmission teeth (64) on the gear sleeve (63); the secondary gear (62) installed on the lower end surface of the third reduction plate (613) meshes with the main gear (23) outside the rotating shaft (21) and the transmission teeth (64) on the gear sleeve (63), so that the second rotation speed of the first reduction plate (611) is lower than the first rotation speed of the rotating shaft (21), and the first reduction plate (611) and the rotating shaft (21) rotate in opposite directions.

6. A single-axis dual-speed output pendulum hair trimming tool according to claim 5, characterized in that The first reduction plate (611) comprises a circular substrate (6111) having a central axis hole (6112); the gear shaft (614) is provided with three gear shafts (614) fixed to the bottom end surface of the circular substrate (6111) in a circular array along the central axis hole (6112); a protruding stopper (6113) is provided on the upper end surface of the circular substrate (6111); the stopper (6113) is inserted into the stopper hole (631) in the gear sleeve (63) to be loosely matched, and the upper end surface of the stopper (6113) is aligned with the upper end surface of the gear sleeve (63). The first reduction disc (611) is rotatably limited in the gear sleeve (63) so as to be maintained level. An eccentric wheel (6114) is arranged along the central axis hole (6112) above the limiting platform (6113). A long hole (81) is arranged on the swing plate (8) and is sleeved outside the eccentric wheel (6114). When the first reduction disc (611) rotates at the second speed, the eccentric wheel (6114) synchronously drives the swing plate (8) to swing back and forth and drives the adapter (7) connected to the swing plate (8) to rotate in a pendulum-like manner.

7. A single-axis dual-speed output pendulum hair trimming tool according to claim 6, characterized in that A hinge hole (82) and a driving block (83) are also provided on the swing plate (8), and the hinge hole (82), the driving block (83) and the long hole (81) are arranged along the same axis, and the driving block (83) and the long hole (81) are located on both sides of the hinge hole (82); a hinge column (632) is provided on the upper end surface of the gear sleeve (63), and the hinge hole (82) is sleeved outside the hinge column (632) so that the swing plate (8) and the gear sleeve (63) are hingedly connected; a swing groove (74) is provided on the adapter seat (7), and the driving block (83) on the swing plate (8) is inserted into the swing groove (74), so that when the first reduction plate (611) rotates at the second speed to drive the swing plate (8) to swing back and forth, the adapter seat (7) drives the stationary knife (4) to rotate in a pendulum-like manner.

8. The single-axis dual-speed output pendulum hair trimming tool according to claim 7, characterized in that The adapter seat (7) is ring-shaped and includes a base (71) and a plug-in ring (72). A fan-shaped notch (73) is provided on the base (71). A swinging groove (74) is provided on the peripheral side wall of the plug-in ring (72) and is located above the fan-shaped notch (73). One end of the swinging plate (8) is placed in the fan-shaped notch (73) and the driving block (83) is inserted into the swinging groove (74) above. When the first reduction plate (611) rotates at a second speed to drive the swinging plate (8) to swing back and forth, the adapter seat (7) drives the stationary knife (4) to rotate in a pendulum-like manner.

9. A single-axis dual-speed output pendulum hair trimming tool according to claim 4, characterized in that The gear sleeve (63) is detachably connected and fixed to the base (9); the base (9) is placed on an end surface of the driving mechanism (2) on which the rotating shaft (21) is arranged and is fixedly connected to the driving mechanism (2).

10. A single-axis dual-speed output pendulum hair trimming tool according to claim 9, characterized in that Two hook rings (633) and positioning holes (634) are arranged opposite to each other on the outer peripheral side wall of the gear sleeve (63), and corresponding positions of the base (9) are provided with barbed pins (91) and positioning inserts (92), respectively. Each pin (91) and positioning insert (92) can be inserted into the hook ring (633) and the positioning hole (634) respectively to connect and fix the gear sleeve (63) and the base (9) in a detachable manner.

Images