Electric trimmer with oscillating head

Abstract

The application discloses a motor-driven eyebrow trimming knife with a swingable cutter head, which comprises a machine body, a transmission connector head and an eyebrow cutter head from back to front. The transmission connector head is internally provided with a simple and durable structure driven by an eccentric mechanism of a motor to realize high-speed linear motion. The linear motion output end is connected with the eyebrow cutter to realize hair cutting. The eyebrow cutter head and the transmission connector head are provided with a limiting swing mechanism to realize the maximum swing angle of the eyebrow cutter head to the left and right of the corresponding central axis, which is 14-17 degrees. The power assembly system in the machine body is integrally sealed by glue injection to form an integrated insert injection molding, thereby enhancing the waterproof function. Through the optimization of the transmission system, the design of the elastic swing structure of the eyebrow cutter head, the optimization of the waterproof design of the machine body and the optimization of the eyebrow cutter head, the simple and practical structure optimization realizes comfortable and fast hair cutting, and effectively solves the problems of inconvenient use and skin discomfort of the motor-driven eyebrow trimming knife.

Description

TECHNICAL FIELD

[0001] The present application relates to a cosmetic tool, in particular to an electric eyebrow trimmer with a swingable cutter head. BACKGROUND

[0002] Many female consumers use blades or tweezers to trim their own eyebrows in the traditional way, but this traditional hair removal method is not only inconvenient to use, but also has certain dangers. Using tweezers to remove eyebrows can easily cause inflammation of the hair follicles. Of course, various electric eyebrow trimmers have also appeared. For example, patent number 201821066749.6 discloses a driving device for an eyebrow trimmer. The driving device includes a driving gear fixed at the output end of an electric motor, a driven circular disc horizontally placed and driven by the driving gear, an eccentric shaft arranged in the middle of the circular disc, a cutter head connecting rod connected to one end of the eccentric shaft, and a moving cutter of the eyebrow trimmer connected to the other end of the cutter head connecting rod. The working principle is that the electric motor drives the driving gear to rotate, which drives the driven circular disc to rotate and makes the eccentric shaft move in a circular motion, causing the cutter head connecting rod to move back and forth, and finally achieving the linear reciprocating motion of the moving cutter. The reciprocating moving cutter interacts with the fixed cutter to cut off the eyebrows. However, this structure is too complex, and the driving gears are easily damaged, which can cause the entire eyebrow trimmer to be unusable. In addition, the cutter head is fixed and not easy to control, which can cause the moving cutter to have excessive contact force with the skin, causing discomfort or skin irritation to the user. How to solve the above problems is an urgent problem in the industry. SUMMARY

[0003] The present application aims to overcome the shortcomings and deficiencies of the prior art, and provides an electric eyebrow trimmer with a swingable cutter head. The simple and practical structure realizes comfortable and fast hair cutting, effectively solves the problems of inconvenience and skin discomfort of the current electric eyebrow trimmer, improves the durability and comfort of the product, and greatly improves the competitiveness of the company's products.

[0004] The technical scheme adopted by the present application to solve its technical problems is: a kind of electric eyebrow trimmer with wobbling cutter head, including body 20, motor 16 for power supply is arranged in body 20, body 20 is equipped with eyebrow trimmer cutter head 102, the eyebrow trimmer cutter head 102 includes: eyebrow trimmer upper cover 10 and eyebrow trimmer lower cover 3 are mutually buckled to form cutter head cavity, eyebrow trimmer fixed cutter 7 is arranged at the front end of eyebrow trimmer upper cover 10, eyebrow trimmer cutter 5 driven by motor through motor drive mechanism is further arranged in cutter head cavity, and the cooperation of the linear motion of eyebrow trimmer cutter 5 and the linear motion of eyebrow trimmer fixed cutter 7 realizes the shearing of hair;The innovation of the present application is that: the output shaft of motor 16 is connected with eccentric copper sleeve 15 with eccentric shaft;The eccentric shaft is cylindrical 1501, preferably a spherical ball 1502 with a diameter larger than the diameter of the cylinder is arranged at the top of the cylinder;Transmission adapter head 101 is arranged between the body and the eyebrow trimmer cutter, the transmission adapter head 101 includes: eyebrow trimmer fixed lower cover 1 and eyebrow trimmer fixed upper cover 14 are mutually buckled to form adapter head cavity, horizontal swing arm 11 that can realize horizontal swing is arranged on eyebrow trimmer fixed upper cover 14 and matched with eccentric copper sleeve 15, the horizontal swing arm 11 includes: swing arm chassis 1102 with swing arm shaft hole 1103, eccentric copper sleeve guide rod 1101 with "U" shaped vertical rod shape is vertically arranged on swing arm chassis 1102 right behind swing arm shaft hole 1103, cylindrical swing arm eccentric shaft 1104 is vertically arranged on swing arm chassis 1102 beside swing arm shaft hole, swing arm shaft hole seat 1105 corresponding to swing arm shaft hole 1103 is arranged in eyebrow trimmer fixed upper cover 14, cylindrical swing shaft 12 penetrates swing arm shaft hole 1103 and is fixed in swing arm shaft hole seat 1105;In this way, the eccentric shaft of eccentric copper sleeve is placed in the "U" shaped groove of eccentric copper sleeve guide rod 1101, when eccentric copper sleeve rotates, the eccentric shaft of eccentric copper sleeve guides horizontal swing arm 11 to swing left and right around swing arm shaft hole 1103, and swing arm eccentric shaft 1104 realizes back and forth movement.

[0005] Long strip front and back swing arm 13 middle part is equipped with front and back swing arm shaft 1301 hinged in eyebrow trimmer fixed upper cover 14, the rear end of front and back swing arm 13 is equipped with cylindrical hole shaped swing arm eccentric shaft sleeve 1302 matched with swing arm eccentric shaft 1104, the front end of front and back swing arm 13 is equipped with first cutter head linear swing arm shaft sleeve 1303 with convex cylindrical shape;

[0006] The front end of the lower cover 1 of the eyebrow knife is provided with a protruding lower knife head fixing shaft 1011 with a cylindrical protrusion, and a hollow cylindrical shaft sleeve is arranged in the lower knife head fixing shaft 1011 for inserting the cylindrical knife head linear swing shaft 8. The front end of the upper cover 14 of the eyebrow knife is provided with a protruding upper knife head fixing shaft 1411 with a cylindrical protrusion, and a hollow cylindrical shaft sleeve is arranged in the upper knife head fixing shaft 1411 and the lower knife head fixing shaft 1011 for inserting the cylindrical knife head linear swing shaft 8. The middle part of the long strip-shaped knife head linear swing arm 9 is provided with an elongated hollow knife head linear swing arm groove 901, the knife head linear swing arm groove 901 is sleeved on the knife head linear swing shaft 8, the rear end of the knife head linear swing arm 9 is provided with a hole-shaped second knife head linear swing arm sleeve 902 matched with the swing arm eccentric shaft 1104, and the front end of the knife head linear swing arm 9 is provided with a protruding cylindrical knife head linear swing arm shaft 903. The knife head linear swing arm shaft 903 is connected with the eyebrow knife moving knife 5 through the connecting moving knife fixing key 6, and the eyebrow knife moving knife 5 is connected in the eyebrow knife lower cover 3 in a gap.

[0007] The front end of the lower cover 3 of the eyebrow knife is further provided with the eyebrow knife spring plate 4.

[0008] The rear end of the upper cover 10 of the eyebrow knife and the lower cover 3 of the eyebrow knife are provided with the eyebrow knife cover shaft sleeve 301 matched with the upper knife head fixing shaft 1411 and the lower knife head fixing shaft 1011. The eyebrow knife cover shaft sleeve 301 of the lower cover 3 of the eyebrow knife further extends a square eyebrow angle positioning plate 302 to the rear, the rear of the lower knife head fixing shaft 1011 of the lower cover 1 of the eyebrow knife is provided with the eyebrow angle fixing key 2 with a groove and elasticity matched with the eyebrow angle positioning plate 302, and the eyebrow knife head 102 and the transmission connecting head 101 are provided with a swing limiting mechanism. The maximum angle of the eyebrow knife head 102 corresponding to the left and right swing around the central axis is 14-17 degrees. The swing limiting mechanism comprises the knife head swing angle limiting surface 303 provided on the rear end of the upper cover 10 of the eyebrow knife and the lower cover 3 of the eyebrow knife and matched with the front end plane of the transmission connecting head 101. Through the cooperation of the eyebrow angle positioning plate 302 and the eyebrow angle fixing key 2 and the cooperation of the front end plane of the transmission connecting head 101 and the knife head swing angle limiting surface 303, when the eyebrow knife head is subjected to left and right pressure, the eyebrow knife head produces a certain swing, and the maximum swing is limited by the cooperation of the front end plane of the transmission connecting head 101 and the knife head swing angle limiting surface 303, that is, the maximum left and right swing is 14-17 degrees. When the left and right pressure is eliminated, the elastic eyebrow angle fixing key 2 pushes the eyebrow angle positioning plate 302 to reset the eyebrow knife head. Therefore, even for a novice eyebrow trimming knife user, when it is difficult to control the shaving force, the angle can produce a certain buffer, so as to avoid damage or discomfort to the user's skin.

[0009] The further optimization design of the present application is performed on the fuselage. The fuselage 20 comprises a fuselage body 2004 and a tail cover 2002 matched in front and back.

[0010] The big body is composed of a big upper body cover and a big lower body cover, the big upper body cover is provided with an opening hole 20041 and an indicator lamp hole 20042 at the front end, the opening hole 20041 is sequentially provided with a soft rubber 51 and a switch film 61 from bottom to top, the big lower body cover is provided with a charging hole 20043 at the rear end, and the big body contains a power assembly system, the power assembly system comprises: a rectangular hollow fixing support 2008, a battery 2007 is arranged at the rear end in the fixing support 2008, a charging needle contact piece 2003 connected with the electrode of the battery 2007 is arranged at the rear end outside the fixing support 2008, a motor 16 is arranged at the front end in the fixing support 2008, a transparent piece 2011 provided with a motor output shaft extension hole in the middle is arranged at the front end of the motor 16, and an indicating protrusion 20111 matched with the indicator lamp hole 20042 is arranged on the upper part of the transparent piece 2011; a sealing ring 2012 is arranged on the transparent piece 2011 and is sleeved with the output shaft of the motor 16; an integrated circuit board PCBA 2009 is fixed on the upper surface of the fixing support 2008, a button 200411 matched with the switch is arranged on the integrated circuit board PCBA 2009, the front end of the integrated circuit board PCBA 2009 is arranged to extend out of the fixing support 2008, and the extending end is provided with an indicator lamp 200421; the rear end of the transparent piece 2011 is provided with a hollow indicator lamp groove 200422 in the upper part; the above-mentioned power assembly system is integrally sealed by glue to form an integrated insert injection molding, so that the waterproof structure of the transparent piece and the circuit element is realized, in order to realize the waterproof structure, the waterproof structure is directly adopted by using the soft rubber structure of the body, so that the process cost of assembling the sealing ring is saved and the waterproof performance of the whole machine is improved.

[0011] The eyebrow pencil fixed blade 7 is provided with a ball-shaped blade tooth ball 701 above the front end of the blade tooth, the blade tooth ball is formed by laser welding technology, the front end of the blade tooth of the eyebrow pencil fixed blade 7 is melted at the corresponding melting point temperature of the metal of the eyebrow pencil fixed blade 7, and a metal smooth spherical body with a diameter of 0.5mm-1.5mm is formed after cooling, and the position of the blade tooth ball 701 is the distal end of the end close to the human skin of the eyebrow pencil fixed blade 7. In this way, the irritation of the blade tooth of the eyebrow pencil fixed blade 7 to the skin can be better reduced, and the comfort of the product is improved.

[0012] In summary, the electric eyebrow pencil with a swingable blade head of the present application can realize comfortable and fast shearing through simple and practical structure optimization of the transmission system, the elastic swing structure of the blade head of the eyebrow pencil, the waterproof design of the body and the optimization of the blade head of the eyebrow pencil fixed blade, and can effectively solve the problems of inconvenient use and skin discomfort of the current electric eyebrow pencil, improve the durability and comfort of the product, and greatly improve the competitiveness of the company's products. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structure schematic view of the eyebrow pencil blade head and the transmission connection head of embodiment 1 of the present application.

[0014] Figure 2 is the structural schematic diagram of the body of the embodiment 1 of the application;

[0015] Figure 3 is the structural schematic diagram of the inside of the fixed upper cover of the eyebrow knife of the embodiment 1 of the application;

[0016] Figure 4 is the structural schematic diagram of the swing limiting connection structure of the eyebrow knife head and the transmission adapter head of the embodiment 1 of the application;

[0017] Figure 5 is the left view and the front view of the fixed knife tooth of the eyebrow knife of the embodiment 1 of the application;

[0018] Figure 6 is the structural schematic diagram of the eccentric copper sleeve of the embodiment 2 of the application;

[0019] Figure 7 is the front view of the fixed knife tooth of the eyebrow knife of the embodiment 1 of the application. DETAILED DESCRIPTION

[0020] Embodiment 1

[0021] As shown in the drawings, an electric eyebrow knife with a swingable head comprises a body 20, a motor 16 for power supply arranged in the body 20, an eyebrow knife head 102 arranged at the front end of the body 20, the eyebrow knife head 102 comprising: an eyebrow knife upper cover 10 and an eyebrow knife lower cover 3 which are mutually buckled to form a head inner cavity, an eyebrow knife fixed knife 7 arranged in the eyebrow knife upper cover 10, and an eyebrow knife movable knife 5 arranged in the head inner cavity and driven by the motor through a motor driving mechanism, the output shaft of the motor 16 being connected with an eccentric copper sleeve 15 with an eccentric shaft, the eccentric shaft being a cylinder 1501, a spherical head 1502 with a diameter larger than that of the cylinder being arranged at the top end of the cylinder, a transmission adapter head 101 being arranged between the body and the eyebrow knife movable knife, the transmission adapter head 101 comprising: an eyebrow knife fixed lower cover 1 and an eyebrow knife fixed upper cover 14 which are mutually buckled to form an adapter head inner cavity. Figures 1-7 Figure 6

[0022] As shown in the drawings, an electric eyebrow knife with a swingable head comprises a body 20, a motor 16 for power supply arranged in the body 20, an eyebrow knife head 102 arranged at the front end of the body 20, the eyebrow knife head 102 comprising: an eyebrow knife upper cover 10 and an eyebrow knife lower cover 3 which are mutually buckled to form a head inner cavity, an eyebrow knife fixed knife 7 arranged in the eyebrow knife upper cover 10, and an eyebrow knife movable knife 5 arranged in the head inner cavity and driven by the motor through a motor driving mechanism, the output shaft of the motor 16 being connected with an eccentric copper sleeve 15 with an eccentric shaft, the eccentric shaft being a cylinder 1501, a spherical head 1502 with a diameter larger than that of the cylinder being arranged at the top end of the cylinder, a transmission adapter head 101 being arranged between the body and the eyebrow knife movable knife, the transmission adapter head 101 comprising: an eyebrow knife fixed lower cover 1 and an eyebrow knife fixed upper cover 14 which are mutually buckled to form an adapter head inner cavity. Figure 3 ​​As shown, the eyebrow knife fixing upper cover 14 is provided with horizontal swing arm 11 which can realize horizontal swing by cooperating with eccentric copper sleeve 15, the horizontal swing arm 11 comprises: swing arm chassis 1102 with swing arm pivot hole 1103, eccentric copper sleeve guide rod 1101 with "U" shaped slot vertically erected on the swing arm chassis 1102 right behind the swing arm pivot hole 1103, cylindrical swing arm eccentric shaft 1104 vertically erected on the swing arm chassis 1102 beside the swing arm pivot hole, swing arm pivot hole seat 1105 corresponding to the swing arm pivot hole 1103 is provided in the eyebrow knife fixing upper cover 14, cylindrical swing shaft 12 penetrates the swing arm pivot hole 1103 and is fixed in the swing arm pivot hole seat 1105; in this way, the eccentric shaft of the eccentric copper sleeve is placed in the "U" shaped slot of the eccentric copper sleeve guide rod 1101, when the eccentric copper sleeve rotates, the eccentric shaft of the eccentric copper sleeve guides the horizontal swing arm 11 to swing left and right around the swing arm pivot hole 1103, at the same time the swing arm eccentric shaft 1104 realizes back and forth movement. The middle part of the long strip-shaped front and back swing arm 13 is provided with front and back swing arm shaft 1301 protruding and hinged in the eyebrow knife fixing upper cover 14, the rear end of the front and back swing arm 13 is provided with cylindrical hole-shaped swing arm eccentric shaft sleeve 1302 matched with the swing arm eccentric shaft 1104, the front end of the front and back swing arm 13 is provided with protruding cylindrical first knife head linear swing arm shaft sleeve 1303;

[0023] As Figure 1 , the front end of the eyebrow knife fixing lower cover 1 is provided with protruding cylindrical protrusion-shaped lower knife head fixing shaft 1011, hollow cylindrical shaft sleeve is provided in the lower knife head fixing shaft 1011 for inserting the cylindrical knife head linear swing arm pivot 8, the front end of the eyebrow knife fixing upper cover 14 is provided with protruding cylindrical protrusion-shaped upper knife head fixing shaft 1411, hollow cylindrical shaft sleeve is provided in the upper knife head fixing shaft 1411 and the lower knife head fixing shaft 1011 for inserting the cylindrical knife head linear swing arm pivot 8; the middle part of the long strip-shaped knife head linear swing arm 9 is provided with long hollow knife head linear swing arm slot 901, the knife head linear swing arm slot 901 is sleeved on the knife head linear swing arm pivot 8, the rear end of the knife head linear swing arm 9 is provided with hole-shaped second knife head linear swing arm shaft sleeve 902 matched with the swing arm eccentric shaft 1104, the front end of the knife head linear swing arm 9 is provided with protruding cylindrical knife head linear swing arm shaft 903; the knife head linear swing arm shaft 903 is connected with the eyebrow knife moving knife 5 through the connecting moving knife fixing key 6, the eyebrow knife moving knife 5 is connected with clearance in the eyebrow knife lower cover 3;

[0024] The front end of the eyebrow knife lower cover 3 is also provided with eyebrow knife spring 4;

[0025] The rear end of the upper eyebrow knife cover 10 and the lower eyebrow knife cover 3 is provided with an eyebrow knife cover shaft sleeve 301 corresponding to the upper knife head fixing shaft 1411 and the lower knife head fixing shaft 1011, the eyebrow knife cover shaft sleeve 301 of the lower eyebrow knife cover 3 further extends a square eyebrow knife angle positioning piece 302 to the rear, the rear of the lower knife head fixing shaft 1011 of the eyebrow knife fixing lower cover 1 is provided with an eyebrow knife angle fixing key 2 with a groove and elasticity corresponding to the eyebrow knife angle positioning piece 302, the eyebrow knife head 102 and the transmission connecting head 101 are provided with a swing limiting mechanism, the maximum angle of the eyebrow knife head 102 corresponding to the left and right swing around the central axis is 14-17 degrees.

[0026] As shown in Figure 4 The swing limiting mechanism includes a knife head swing angle limiting surface 303 provided on the rear end of the upper eyebrow knife cover 10 and the lower eyebrow knife cover 3 and colliding with the front end plane of the transmission connecting head 101.

[0027] As shown in Figure 2 The body 20 includes a front and rear matched body main body 2004 and a tail cover 2002, the body main body is composed of an upper body cover and a lower body cover, the front end of the upper body cover is provided with a switch hole 20041 and an indicator hole 20042, the switch hole 20041 is provided with a soft rubber 51 and a switch film 61 from bottom to top, the rear end of the lower body cover is provided with a charging hole 20043, the body main body contains a power assembly system, the power assembly system includes a rectangular hollow fixing bracket 2008, a battery 2007 is arranged at the rear end of the fixing bracket 2008, a charging needle contact piece 2003 connected with the electrode of the battery 2007 is arranged at the rear end of the fixing bracket 2008, a motor 16 is arranged at the front end of the fixing bracket 2008, a transparent part 2011 provided with a motor output shaft extension hole in the middle is arranged at the front end of the motor 16, the upper part of the transparent part 2011 is provided with an indicating protrusion 20111 matched with the indicator hole 20042, a sealing ring 2012 is fixed to the transparent part 2011 and covers the output shaft of the motor 16, an integrated circuit board PCBA 2009 is fixed on the upper surface of the fixing bracket 2008, a button 200411 matched with the switch film 61 is arranged on the integrated circuit board PCBA 2009, the front end of the integrated circuit board PCBA 2009 extends out of the fixing bracket 2008, and the extending end is provided with an indicator lamp 200421, the rear end of the transparent part 2011 is provided with a hollow indicator lamp groove 200422, the above-mentioned power assembly system is integrally sealed by pouring glue to form an integrated insert injection molding, realizing the waterproof structure of the transparent part and the circuit element, in order to realize the waterproof structure, the waterproof structure of the body is directly adopted, so that the process cost of assembling the sealing ring is saved and the waterproof performance of the whole machine is improved.

[0028] As shown in Figure 5 , Figure 7As shown, the eyebrow knife fixed knife 7 is provided with a ball-shaped knife tooth ball 701 above the front end of the knife tooth, the knife tooth ball is melted at the corresponding melting point temperature of the eyebrow knife fixed knife 7 metal by using laser welding technology, and a 1mm diameter metal smooth spherical body is formed after cooling, and the position of the knife tooth ball 701 is the distal end of the end of the eyebrow knife fixed knife 7 close to the human skin.

[0029] The above is only a preferred embodiment of the present application, and does not limit the structure of the present application in any form. Any simple modification, equivalent change and modification of the above embodiment according to the technical essence of the present application still belongs to the scope of the technical solution of the present application.

Claims

1. A motorized eyebrow trimmer with oscillating head, comprising a body (20) in which a motor (16) is arranged to supply power, a front end of the body (20) being provided with an eyebrow trimmer head (102), the eyebrow trimmer head (102) comprising: The upper cover (10) and the lower cover (3) are mutually buckled to form a cutter head cavity, the upper cover (10) is provided with a cutter fixed cutter (7), the cutter head cavity is further provided with a cutter moving cutter (5) driven by a motor through a motor driving mechanism, the cutter moving cutter (5) is linearly moved to realize shearing of hair in cooperation with the cutter fixed cutter (7); characterized in that: the motor (16) output shaft is connected with an eccentric copper sleeve (15) provided with an eccentric shaft, the machine body and the cutter moving cutter are provided with a transmission connecting head (101), the transmission connecting head (101) comprises: the lower cover (1) and the upper cover (14) are mutually buckled to form a connecting head cavity, the upper cover (14) is provided with a horizontal swing arm (11) capable of realizing horizontal swing in cooperation with the eccentric copper sleeve (15); the middle part of the long strip-shaped front and rear swing arm (13) is provided with a front and rear swing arm shaft (1301) protruding and hinged in the upper cover (14), the rear end of the front and rear swing arm (13) is provided with a cylindrical hole-shaped swing arm eccentric shaft sleeve (1302) matched with the swing arm eccentric shaft (1104), the front end of the front and rear swing arm (13) is provided with a first cutter head linear swing arm sleeve (1303) protruding and cylindrical; The front end of the lower cover (1) is provided with a lower cutter head fixing shaft (1011) protruding forward and provided with a cylindrical protrusion, a hollow cylindrical sleeve is arranged in the lower cutter head fixing shaft (1011) for inserting a cylindrical cutter head linear swing arm rotating shaft (8), the front end of the upper cover (14) is provided with an upper cutter head fixing shaft (1411) protruding forward and provided with a cylindrical protrusion, a hollow cylindrical sleeve matched with the upper and lower cutter head fixing shafts (1411, 1011) is arranged for inserting the cylindrical cutter head linear swing arm rotating shaft (8); the middle part of the long strip-shaped cutter head linear swing arm (9) is provided with an elongated hollow cutter head linear swing arm groove (901), the cutter head linear swing arm groove (901) is sleeved on the cutter head linear swing arm rotating shaft (8), the rear end of the cutter head linear swing arm (9) is provided with a second cutter head linear swing arm sleeve (902) matched with the swing arm eccentric shaft (1104), the front end of the cutter head linear swing arm (9) is provided with a cutter head linear swing arm shaft (903) protruding and cylindrical; the cutter head linear swing arm shaft (903) is connected with the cutter moving cutter (5) through a connecting moving cutter fixing key (6), the cutter moving cutter (5) is gap-connected in the lower cover (3); The front end of the lower cover (3) is provided with a cutter spring (4); The rear end of the upper cover (10) and the lower cover (3) is provided with a cutter cover sleeve (301) matched with the upper and lower cutter head fixing shafts (1411, 1011), the cutter cover sleeve (301) of the lower cover (3) further extends a block-shaped cutter angle positioning piece (302) rearward, the rear of the lower cutter head fixing shaft (1011) of the lower cover (1) is provided with a cutter angle fixing key (2) matched with the cutter angle positioning piece (302) and provided with a groove and elasticity.

2. The electrically operated epilating device according to claim 1, characterized in that The horizontal swing arm (11) comprises: a swing arm chassis (1102) with a swing arm pivot hole (1103), an eccentric copper sleeve guide rod (1101) in the shape of a "U" vertical rod is vertically arranged on the swing arm chassis (1102) behind the swing arm pivot hole (1103), a cylindrical swing arm eccentric shaft (1104) is vertically arranged on the swing arm chassis (1102) beside the swing arm pivot hole, a swing arm pivot hole seat (1105) corresponding to the swing arm pivot hole (1103) is arranged in the eyebrow knife fixed upper cover (14), and the cylindrical swing shaft (12) penetrates the swing arm pivot hole (1103) and is fixed to the swing arm pivot hole seat (1105).

3. The electrically operated epilating device according to claim 1 or 2, characterized in that The eyebrow knife head (102) and the transmission connecting head (101) are provided with a swing limiting mechanism, and the maximum angle of the eyebrow knife head (102) swinging left and right around the central axis is 14-17 degrees; the swing limiting mechanism comprises a knife head swing angle limiting surface (303) arranged on the rear end of the eyebrow knife upper cover (10) and the eyebrow knife lower cover (3) shell and abutting against the front end plane of the transmission connecting head (101).

4. The electrically operated epilating apparatus according to claim 1 or 2, characterized in that The fuselage (20) comprises: a fuselage body (2004) and a tail cover (2002) matched front and back; the fuselage body is composed of an upper fuselage cover and a lower fuselage cover, the front end of the upper fuselage cover is provided with an on-off hole (20041) and an indicator hole (20042); the on-off hole (20041) is sequentially provided with a soft rubber (51) and a switch film (61) from bottom to top; the rear end of the lower fuselage cover is provided with a charging hole (20043); the fuselage body contains a power assembly system, and the power assembly system comprises: a rectangular hollow fixed support (2008), a battery (2007) is arranged at the rear end of the fixed support (2008), a charging needle contact piece (2003) connected with the electrode of the battery (2007) is arranged at the rear end outside the fixed support (2008), a motor (16) is arranged at the front end of the fixed support (2008), a transparent member (2011) provided with a motor output shaft extension hole in the middle is arranged at the front end of the motor (16), and an indicating protrusion (20111) matched with the indicator hole (20042) is arranged on the upper part of the transparent member (2011); a sealing ring (2012) is arranged on the transparent member (2011) and sleeved with the output shaft of the motor (16); a printed circuit board assembly (PCBA) (2009) is fixed on the upper surface of the fixed support (2008), a button (200411) matched with the switch is arranged on the printed circuit board assembly (PCBA) (2009), the front end of the printed circuit board assembly (PCBA) (2009) extends out of the fixed support (2008), and the extending end is provided with an indicator lamp (200421); the rear end of the transparent member (2011) is provided with a hollow indicator lamp groove (200422); the above-mentioned power assembly system is integrally sealed by glue filling to form an integrated insert injection molding.

5. The electrically operated epilating apparatus according to claim 1 or 2, characterized in that The eccentric shaft is in the shape of a cylinder (1501), and a spherical ball (1502) with a diameter larger than that of the cylinder is arranged at the top end of the cylinder.

6. The electrically operated epilating apparatus according to claim 1 or 2, characterized in that: The eyebrow knife fixed knife (7) is provided with a knife tooth ball (701) in the shape of a spherical ball with a diameter of 0.5-1.5 mm above the front end of the knife tooth.

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