Electric hair trimmer

Abstract

The utility model discloses an electric hair trimmer, which relates to the technical field of hairdressing equipment and comprises a cutting component, a driving component, a fixed part and a sliding part, the cutting assembly comprises a support and a movable cutter frame, the movable cutter frame is movably arranged on the support, a fixed cutter is fixedly arranged on the support, and a movable cutter is fixedly arranged on the movable cutter frame; the driving assembly comprises a driving motor, a transmission part and a pressing rod, the driving motor is in transmission connection with the transmission part, the transmission part is fixedly provided with a first eccentric part and a second eccentric part, and the pressing rod is movably arranged on the support. According to the electric hair trimmer, when the driving motor works, hair is pressed between the fixed cutter and the movable cutter, meanwhile, the hair is trimmed through cooperation of the movable cutter and the fixed cutter, and the trimming effect is good; the trimmed broken hair is stored in the hair storage bin, the sliding piece is shifted to slide along the limiting sliding groove, the sliding piece does not abut against the bin cover any more, the bin cover can be detached from the lower cover plate, operation is easy, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of hairdressing equipment, in particular to an electric hair trimmer. Background Art

[0002] When hair grows to a certain length, it often develops split ends. If not trimmed promptly, it not only affects the hairstyle but also the health of the hair. Currently, split ends are often trimmed at the ends of hair by professional barbers at a barbershop. This involves trimming the hair by arranging the split ends with one hand while holding scissors with the other, trimming each part individually. This is not only cumbersome and time-consuming, but also may not guarantee a complete clean cut. Therefore, finding an electric hair trimmer that is easy to use and provides excellent trimming results is a pressing issue for those skilled in the art. Utility Model Content

[0003] The utility model aims to provide an electric hair trimmer, which solves the technical problems of the current hair trimming equipment being inconvenient to use and having poor trimming effects.

[0004] To achieve the above-mentioned object, the present invention provides an electric hair trimmer, a cutting assembly, the cutting assembly comprising a bracket and a movable blade holder, the movable blade holder being movably mounted on the bracket, the bracket being fixedly provided with a fixed cutting blade, and the movable blade holder being fixedly provided with a movable cutting blade;

[0005] A drive assembly, comprising a drive motor, a transmission member, and a pressure rod, wherein the drive motor is in transmission connection with the transmission member, the transmission member is fixedly provided with a first eccentric portion and a second eccentric portion, and the pressure rod is movably provided on the bracket;

[0006] When the driving motor drives the transmission member to rotate, the first eccentric portion drives the pressure rod to reciprocate along a straight line to press the hair between the fixed cutter and the movable cutter, and the second eccentric portion drives the movable cutter holder to reciprocate along a straight line to drive the movable cutter to move for trimming.

[0007] Preferably, the transmission member is a gear, the second eccentric portion is fixed to the transmission member, the first eccentric portion is fixed to the second eccentric portion, and the first eccentric portion is located on a side of the second eccentric portion away from the transmission member.

[0008] Preferably, a first limiting groove is provided at one end of the pressure rod, the first eccentric portion is accommodated in the first limiting groove, the first eccentric portion is connected to the pressure rod through the first limiting groove, and the other end of the pressure rod is slidably connected to the bracket.

[0009] Preferably, the movable tool holder is provided with a second limiting groove, the second eccentric portion is accommodated in the second limiting groove, and the second eccentric portion is connected to the movable tool holder through the second limiting groove.

[0010] Preferably, the movable knife holder is provided with a first limiting boss, the movable cutter is provided with a first clamping slot, and the first limiting boss is clamped with the first clamping slot.

[0011] Preferably, the bracket is provided with a second limiting boss, the fixed cutter is provided with a second clamping slot, and the second limiting boss is clamped with the second clamping slot.

[0012] Preferably, an accommodating groove is provided on the first limiting boss, and the second limiting boss can be accommodated in the accommodating groove so that the movable tool holder can reciprocate along a straight line.

[0013] Preferably, the pressure rod is provided with a threaded portion, and the threaded portion is located in the middle of the pressure rod.

[0014] Preferably, torsion springs are provided on both sides of the movable cutter, the torsion springs are provided on the bracket, and both ends of the torsion springs are connected to the movable cutter.

[0015] Preferably, the pressure rod is arranged on the bracket through a limit plate, and the limit plate is used to limit the pressure rod from moving in a direction perpendicular to the reciprocating movement direction of the pressure rod. The limit plate is fixed to the bracket by a fastener.

[0016] Preferably, the drive assembly further comprises:

[0017] a power supply, for providing electrical energy to the drive motor;

[0018] The first gear is connected to the output shaft of the driving motor and meshed with the transmission member.

[0019] Preferably, it also includes:

[0020] An upper shell and an upper cover plate, wherein the upper shell and the upper cover plate are connected to form an upper accommodating cavity, and the cutting assembly and the driving assembly are arranged in the upper accommodating cavity;

[0021] A lower shell and a lower cover plate, wherein the lower shell and the lower cover plate are connected to form a hair storage bin, and the hair storage bin is used to store broken hair trimmed by the fixed cutter and the movable cutter;

[0022] Wherein, the upper shell and the lower shell are rotatably connected, and an elastic member is provided between the upper shell and the lower shell.

[0023] Preferably, it further comprises a circuit board and a power display, wherein the circuit board and the power display are located in the upper accommodation cavity formed by the upper shell and the upper cover, and the circuit board is electrically connected to the power supply and the power display.

[0024] Preferably, the lower cover is further provided with a bin cover, a sliding member and a fixing member, the lower cover is provided with a limiting slide groove, the fixing member is fixedly provided on the lower cover, the sliding member is movably provided in the limiting slide groove, one end of the sliding member is connected to the lower cover through a spring, one side of the bin cover is used to be engaged with the lower cover, and the other side of the bin cover is used to abut against the end of the sliding member away from the spring.

[0025] Compared to the above-mentioned background technology, the electric hair trimmer provided by the present invention has a first eccentric portion and a second eccentric portion both eccentrically disposed relative to a transmission member. As the drive motor drives the transmission member to rotate, the first eccentric portion drives the pressure rod to reciprocate along a straight line, while the second eccentric portion simultaneously drives the movable blade holder to reciprocate along a straight line. The reciprocating motion of the pressure rod presses the hair between the fixed cutter and the movable cutter, and the movable blade holder drives the movable cutter to reciprocate along a straight line. The movable cutter and the fixed cutter cooperate to trim the hair, thereby removing the split ends of the hair. When the drive motor is operating, the hair is pressed between the fixed cutter and the movable cutter, and the cooperation between the movable cutter and the fixed cutter simultaneously trims the hair, resulting in convenient use and good trimming results. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0027] Figure 1 A schematic structural diagram of an electric hair trimmer provided by an embodiment of the present utility model;

[0028] Figure 2 A schematic structural diagram of the electric hair trimmer provided by an embodiment of the present utility model from another perspective;

[0029] Figure 3 A schematic diagram of a portion of the structure of an electric hair trimmer provided by an embodiment of the present utility model;

[0030] Figure 4 for Figure 1 One of the exploded diagrams of the electric hair trimmer shown;

[0031] Figure 5 for Figure 1 The second exploded diagram of the electric hair trimmer shown;

[0032] Figure 6 It is a schematic diagram of the structure of the transmission parts in the electric hair trimmer;

[0033] Figure 7This is a schematic diagram of the structure of the pressure rod in the electric hair trimmer;

[0034] Figure 8 This is a schematic diagram of the structure of the movable blade holder in an electric hair trimmer;

[0035] Figure 9 This is a schematic diagram of the structure of the movable cutter in an electric hair trimmer;

[0036] Figure 10 It is a schematic diagram of the structure of the fixed cutter in the electric hair trimmer;

[0037] Figure 11 This is a schematic diagram of the structure of the electric hair trimmer when the movable cutter and the fixed cutter cooperate;

[0038] Figure 12 This is one of the exploded diagrams of the compartment cover of the electric hair trimmer;

[0039] Figure 13 This is the second exploded diagram of the compartment cover of the electric hair trimmer.

[0040] Figures 1 to 13 Reference numerals: 10, upper housing; 11, upper cover; 12, switch; 13, circuit board; 14, power display; 15, power cover; 20, bracket; 201, second limiting boss; 21, fixed cutter; 211, second slot; 22, movable knife holder; 221, second limiting slot; 222, first limiting boss; 2221, receiving slot; 23, movable cutter; 231, first slot; 24, torsion spring; 30, drive motor; 31 , first gear; 32, transmission member; 321, first eccentric portion; 322, second eccentric portion; 33, pressure rod; 331, first limiting groove; 332, threaded portion; 34, limiting plate; 35, power supply; 40, lower shell; 41, lower cover; 411, limiting slide; 42, hair storage bin; 43, bin cover; 44, sliding member; 45, fixing member; 46, elastic contact; 50, elastic member; 51, locking push button; 60, negative ion generator. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0043] The core purpose of this utility model is to provide an electric hair trimmer. Please refer to Figures 1 to 6 The electric hair trimmer provided by the present utility model includes a cutting assembly and a driving assembly; the cutting assembly includes a bracket 20 and a movable blade holder 22, the movable blade holder 22 is movably arranged on the bracket 20, the bracket 20 is fixedly provided with a fixed cutting knife 21, and the movable blade holder 22 is fixedly provided with a movable cutting knife 23; the driving assembly includes a driving motor 30, a transmission member 32 and a pressure rod 33, the driving motor 30 is transmission-connected to the transmission member 32, the transmission member 32 is fixedly provided with a first eccentric portion 321 and a second eccentric portion 322, and the pressure rod 33 is movably arranged on the bracket 20; wherein, when the driving motor 30 drives the transmission member 32 to rotate, the first eccentric portion 321 drives the pressure rod 33 to reciprocate along a straight line to press the hair between the fixed cutting knife 21 and the movable cutting knife 23, and the second eccentric portion 322 drives the movable blade holder 22 to reciprocate along a straight line to drive the movable cutting knife 23 to move for trimming.

[0044] The first eccentric portion 321 and the second eccentric portion 322 are both eccentrically positioned relative to the transmission member 32. As the drive motor 30 drives the transmission member 32 to rotate, the first eccentric portion 321 drives the pressure rod 33 to reciprocate along a straight line, while the second eccentric portion 322 drives the movable blade holder 22 to reciprocate along a straight line. As the pressure rod 33 reciprocates along a straight line, the pressure rod 33 presses the hair between the fixed cutter 21 and the movable cutter 23. As the movable blade holder 22 reciprocates along a straight line, the movable blade holder 22 drives the movable cutter 23 to reciprocate along a straight line. The movable cutter 23 and the fixed cutter 21 cooperate to trim the hair, thereby removing the split ends of the hair. With this arrangement, when the drive motor 30 is operating, the hair is pressed between the fixed cutter 21 and the movable cutter 23, while the movable cutter 23 and the fixed cutter 21 cooperate to trim the hair, providing convenient use and a good trimming effect.

[0045] For details, please refer to 5 to Figure 6 In this embodiment, the transmission member 32 is a gear, the second eccentric portion 322 is fixed to the transmission member 32, the first eccentric portion 321 is fixed to the second eccentric portion 322, and the first eccentric portion 321 is located on the side of the second eccentric portion 322 away from the transmission member 32.

[0046] During operation, the driving motor 30 drives the transmission member 32 to rotate. As the transmission member 32 rotates, the first eccentric portion 321 drives the pressure rod 33 to reciprocate along a straight line, and the second eccentric portion 322 drives the movable tool holder 22 to reciprocate along a straight line. The pressure rod 33 and the movable tool holder 22 can reciprocate along a straight line at the same time. The pressure rod 33 and the movable tool holder 22 move at the same time and the movements of the pressure rod 33 and the movable tool holder 22 do not interfere with each other.

[0047] Please refer to Figure 4 、 Figure 5 and Figure 7In this embodiment, a first limiting groove 331 is provided at one end of the pressure rod 33, the first eccentric portion 321 is accommodated in the first limiting groove 331, the first eccentric portion 321 is connected to the pressure rod 33 through the first limiting groove 331, and the other end of the pressure rod 33 is slidably connected to the bracket 20.

[0048] The first eccentric portion 321 is connected to the pressure rod 33 through the first limiting groove 331. As the transmission member 32 rotates, the first eccentric portion 321 moves. The first eccentric portion 321 drives the pressure rod 33 to reciprocate as a whole along a straight line through the first limiting groove 331. The end of the pressure rod 33 away from the first limiting groove 331 is slidably connected to the bracket 20, playing a guiding role.

[0049] Please refer to Figure 4 、 Figure 5 and Figure 7 The pressure rod 33 has a threaded portion 332 located in the middle of the pressure rod 33. The threaded portion 332 is a portion of a continuous thread and faces toward the fixed cutter 21 and the movable cutter 23. This arrangement allows the pressure rod 33 to better position the hair through the threaded portion 332. As the pressure rod 33 reciprocates, the hair ends and split ends are pressed between the fixed cutter 21 and the movable cutter 23, thereby trimming the hair ends and split ends. The threaded portion 332 being a portion of a continuous thread reduces the volume of the pressure rod 33, making the structure more compact and reducing the overall size of the electric hair trimmer for easier portability. Furthermore, the threaded portion 332, facing away from the fixed cutter 21 and the movable cutter 23, is hollow, reducing the overall weight and making the hair trimmer more portable, thereby avoiding any burden on the user when carrying the hair trimmer.

[0050] In some of these embodiments, please refer to Figure 4 、 Figure 5 and Figure 7 The pressure rod 33 is mounted on the bracket 20 via a limiting plate 34. The limiting plate 34 is used to limit the movement of the pressure rod 33 in a direction perpendicular to the reciprocating direction of the pressure rod 33. The limiting plate 34 is fixed to the bracket 20 via a fastener. The limiting plate 34 is generally a semicircular clamp structure. The limiting plate 34 surrounds the pressure rod 33 from the side facing away from the bracket 20. The limiting plate 34 is fixed to the bracket 20 via a fastener. In this manner, the pressure rod 33 is limited to prevent movement in a direction perpendicular to the reciprocating linear direction of the pressure rod 33. However, the reciprocating linear motion of the pressure rod 33 driven by the first eccentric portion 321 through the first limiting groove 331 is not affected. The fastener can be a fastening bolt or a fastening screw, etc., and is not specifically limited.

[0051] Please refer to Figure 4 、 Figure 5 、 Figure 8 and Figure 9 The movable blade holder 22 is provided with a second limiting groove 221, and the second eccentric portion 322 is accommodated in the second limiting groove 221. The second eccentric portion 322 is connected to the movable blade holder 22 through the second limiting groove 221. The movable blade holder 22 is provided with a first limiting boss 222, and the movable cutter 23 is provided with a first engaging groove 231. The first limiting boss 222 is engaged with the first engaging groove 231.

[0052] The second eccentric portion 322 is coupled to the movable blade holder 22 via the second limiting slot 221. Rotation of the transmission member 32 drives the second eccentric portion 322, which in turn drives the movable blade holder 22 to reciprocate along a straight line via the second limiting slot 221. The multiple first limiting bosses 222 on the movable blade holder 22 correspond one-to-one with the multiple first retaining slots 231 on the movable cutter 23, thereby securing the movable cutter 23 to the movable blade holder 22 for easy assembly and disassembly.

[0053] Please refer to Figure 4 、 Figure 5 and Figure 10 The bracket 20 is provided with a second limiting boss 201 , the fixed cutter 21 is provided with a second slot 211 , and the second limiting boss 201 is engaged with the second slot 211 .

[0054] The multiple second limiting bosses 201 provided on the bracket 20 correspond one-to-one to the multiple second card slots 211 provided on the fixed cutter 21. The fixed cutter 21 is installed on the bracket 20 by the clamping connection between the second limiting bosses 201 and the second card slots 211, which facilitates the installation and replacement of the fixed cutter 21.

[0055] Please refer to Figure 4 、 Figure 5 、 Figure 8 、 Figure 10 and Figure 11 The first limiting boss 222 is provided with an accommodating groove 2221, which corresponds one-to-one to the second limiting boss 201. The second limiting boss 201 can be accommodated in the accommodating groove 2221 so that the movable tool holder 22 can reciprocate along a straight line.

[0056] The second limiting boss 201 is fixed to the bracket 20, and the second limiting boss 201 is at least partially accommodated in the accommodating groove 2221. When the movable tool holder 22 reciprocates along a straight line, the second limiting boss 201 does not affect the movement of the movable tool holder 22, and can play a limiting role to ensure that the movable tool holder 22 moves along a straight line.

[0057] Please refer to Figure 4Torsion springs 24 are provided on both sides of the movable cutter 23. The torsion springs 24 are provided on the bracket 20, and the two ends of the torsion springs 24 are connected to the movable cutter 23. By providing the torsion springs 24 to apply pressure to the movable cutter 23, the fixed cutter 21 and the movable cutter 23 are fitted together, and the fixed cutter 21 and the movable cutter 23 are fitted together with a gap between them.

[0058] Please refer to Figures 4 and 5 In the electric hair trimmer provided by the present invention, the drive assembly further includes a power supply 35 and a first gear 31. The power supply 35 is used to provide electrical energy to the drive motor 30 and can be a rechargeable lithium battery. The first gear 31 is connected to the output shaft of the drive motor 30 and meshes with the transmission member 32. Specifically, in this embodiment, the first gear 31 is an external gear, and the transmission member 32 is an internal gear, and the transmission member 32 is a bevel gear. The operation of the drive motor 30 drives the first gear 31 to rotate, and the first gear 31, through engagement with the transmission member 32, drives the transmission member 32 to rotate.

[0059] Please refer to Figures 1 to 5 The electric hair trimmer provided by the present invention also includes an upper shell 10, an upper cover plate 11, a lower shell 40 and a lower cover plate 41; the upper shell 10 and the upper cover plate 11 are connected to form an upper accommodating chamber, and the cutting assembly and the driving assembly are arranged in the upper accommodating chamber; the lower shell 40 and the lower cover plate 41 are connected to form a hair storage bin 42, which is used to store broken hair trimmed by the fixed cutter 21 and the movable cutter 23. The lower cover plate 41 is provided with a bin cover 43, and the bin cover 43 is detachably connected to the lower cover plate 41; wherein the upper shell 10 and the lower shell 40 are rotatably connected, and an elastic member 50 is provided between the upper shell 10 and the lower shell 40.

[0060] The upper housing 10 and upper cover 11 form the upper half of the electric hair trimmer, while the lower housing 40 and lower cover 41 form the lower half. The upper housing 10 and lower housing 40 are hingedly connected, forming a roughly "V"-shaped opening structure for the electric hair trimmer as a whole. This not only maximizes hair volume but also facilitates handheld operation. An elastic member 50 is positioned near the hinged joint between the upper housing 10 and lower housing 40. The elastic member 50 can be a spring, providing support to propel the upper housing 10 and lower housing 40 open and maintain their positions. Operation requires only overcoming the elastic force of the elastic member 50 to bring the upper housing 10 and lower housing 40 into contact. Once the trimming operation is complete and the trimmer is released, the upper housing 10 and lower housing 40 automatically reset, making operation convenient. The broken hair trimmed by the fixed cutter 21 and the movable cutter 23 falls into the hair storage bin 42 formed by the lower shell 40 and the lower cover 41. After using for a period of time, open the bin cover 43, pour out the broken hair from the hair storage bin 42, and clean it with a brush.

[0061] Please refer to Figure 4 、 Figure 12 and Figure 13 In the electric hair trimmer provided by the present invention, the lower cover 41 is further provided with a sliding member 44 and a fixing member 45. The lower cover 41 is provided with a limiting slide groove 411. The fixing member 45 is fixedly provided on the lower cover 41. The sliding member 44 is movably provided in the limiting slide groove 411. One end of the sliding member 44 is connected to the lower cover 41 through a spring (not shown in the figure). One side of the compartment cover 43 is used to be engaged with the lower cover 41, and the other side of the compartment cover 43 is used to abut against the end of the sliding member 44 away from the spring.

[0062] The fixing member 45 is generally U-shaped and engages with the lower cover 41. One end of the sliding member 44 is connected to a spring. By moving the sliding member 44, the sliding member 44 can be driven to move along the limiting groove 411. When installing the compartment cover 43 on the lower cover 41, the sliding member 44 is moved, the spring is compressed, and the sliding member 44 slides along the limiting groove 411, causing one side of the compartment cover 43 to engage with the lower cover 41. After the compartment cover 43 is in place, the sliding member 44 is released. The spring acts to reset the sliding member 44, and the end of the sliding member 44 facing away from the spring abuts against the compartment cover 43, thus completing the installation of the compartment cover 43. Similarly, when removing the compartment cover 43 from the lower cover 41, the sliding member 44 is moved, and the sliding member 44 slides along the limiting groove 411. The sliding member 44 no longer abuts against the compartment cover 43, and the compartment cover 43 can now be easily removed.

[0063] In some embodiments, the lower cover 41 is further provided with an elastic contact 46. When the bin cover 43 is installed on the lower cover 41, the elastic contact 46 is compressed. When the bin cover 43 is removed, as the sliding member 44 is toggled, the sliding member 44 slides along the limiting slide groove 411, and the sliding member 44 and the bin cover 43 no longer contact each other. At this time, the bin cover 43 is bounced up under the resetting action of the elastic contact 46. This arrangement makes it convenient to remove the bin cover 43 from the lower cover 41, and the operation is simple.

[0064] Please refer to Figures 1 to 2 In the electric hair trimmer provided by the present invention, the upper housing 10 is provided with a switch 12 for starting or stopping the electric hair trimmer.

[0065] Please refer to Figure 1 、 Figure 4 and Figure 5The electric hair trimmer provided by the present invention also includes a circuit board 13 and a battery indicator 14. These are located in the upper housing formed by the upper housing 10 and the upper cover 11. The circuit board 13 is electrically connected to the power supply 35 and the battery indicator 14. The battery indicator 14 displays the battery level, reminding the user of power consumption. The upper cover 11 is provided with a battery cover 15. The battery cover 15 is detachably connected to the upper cover 11, such as by a snap-fit ​​or snap-fit ​​connection. An observation hole is provided on the battery cover 15 at a position corresponding to the battery indicator 14 to facilitate monitoring of the battery level.

[0066] Please refer to Figures 2 to 3 The electric hair trimmer provided by the present invention also includes a locking push button 51. When in use, the locking push button 51 is opened, the upper shell 10 and the lower shell 40 are in an unlocked state, and the upper shell 10 and the lower shell 40 can rotate to a certain extent. After use, the locking push button 51 is closed, the upper shell 10 and the lower shell 40 are in a locked state, and the upper shell 10 and the lower shell 40 cannot rotate.

[0067] In some of these embodiments, please refer to Figures 4 and 5 The electric hair trimmer provided by the present invention is also provided with a negative ion generator 60. The negative ion generator 60 generates negative ions to help eliminate static electricity from the hair, making the hair smoother and more supple, reducing frizz and split ends, and making it easier to comb.

[0068] In the electric hair trimmer provided by the present utility model, the first eccentric portion 321 and the second eccentric portion 322 are both eccentrically arranged relative to the transmission member 32. As the driving motor 30 drives the transmission member 32 to rotate, the first eccentric portion 321 drives the pressure rod 33 to reciprocate along a straight line, and at the same time, the second eccentric portion 322 drives the movable blade holder 22 to reciprocate along a straight line. As the pressure rod 33 reciprocates along the straight line, the pressure rod 33 presses the hair between the fixed cutter 21 and the movable cutter 23. As the movable blade holder 22 reciprocates along the straight line, the movable blade holder 22 drives the movable cutter 23 to reciprocate along the straight line. With the cooperation of the movable cutter 23 and the fixed cutter 21, the hair is trimmed, thereby cutting off the bifurcated parts of the hair ends. The trimming effect is good and the use is convenient. In addition, the overall structure is compact and the volume is smaller, which is convenient to carry.

[0069] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0070] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the present invention.

Claims

1. An electric hair trimmer, characterized in that: include: A cutting assembly, comprising a bracket and a movable blade holder, wherein the movable blade holder is movably mounted on the bracket, a fixed cutting blade is fixedly mounted on the bracket, and a movable cutting blade is fixedly mounted on the movable blade holder; A drive assembly, comprising a drive motor, a transmission member, and a pressure rod, wherein the drive motor is in transmission connection with the transmission member, the transmission member is fixedly provided with a first eccentric portion and a second eccentric portion, and the pressure rod is movably provided on the bracket; When the driving motor drives the transmission member to rotate, the first eccentric portion drives the pressure rod to reciprocate along a straight line to press the hair between the fixed cutter and the movable cutter, and the second eccentric portion drives the movable cutter holder to reciprocate along a straight line to drive the movable cutter to move for trimming.

2. The electric hair trimmer according to claim 1, characterized in that The transmission member is a gear, the second eccentric portion is fixed to the transmission member, the first eccentric portion is fixed to the second eccentric portion, and the first eccentric portion is located on a side of the second eccentric portion away from the transmission member.

3. The electric hair trimmer according to claim 2, characterized in that One end of the pressure rod is provided with a first limiting groove, the first eccentric portion is accommodated in the first limiting groove, the first eccentric portion is connected to the pressure rod through the first limiting groove, and the other end of the pressure rod is slidably connected to the bracket.

4. The electric hair trimmer according to claim 3, characterized in that The movable tool holder is provided with a second limiting groove, the second eccentric portion is accommodated in the second limiting groove, and the second eccentric portion is connected to the movable tool holder through the second limiting groove.

5. The electric hair trimmer according to claim 4, characterized in that The movable knife holder is provided with a first limiting boss, and the movable cutter is provided with a first clamping slot, and the first limiting boss is clamped with the first clamping slot.

6. The electric hair trimmer according to claim 5, characterized in that The bracket is provided with a second limiting boss, the fixed cutter is provided with a second clamping slot, and the second limiting boss is clamped with the second clamping slot.

7. The electric hair trimmer according to claim 6, characterized in that The first limiting boss is provided with an accommodating groove, and the second limiting boss can be accommodated in the accommodating groove so that the movable tool holder can reciprocate along a straight line.

8. The electric hair trimmer according to any one of claims 1 to 7, characterized in that The pressure rod is provided with a threaded portion, and the threaded portion is located in the middle of the pressure rod.

9. The electric hair trimmer according to claim 8, characterized in that Torsion springs are provided on both sides of the movable cutter. The torsion springs are provided on the bracket, and both ends of the torsion springs are connected to the movable cutter.

10. The electric hair trimmer according to claim 9, characterized in that The pressure rod is arranged on the bracket through a limit plate, and the limit plate is used to limit the pressure rod from moving in a direction perpendicular to the reciprocating direction of the pressure rod. The limit plate is fixed to the bracket through a fastener.

11. The electric hair trimmer according to claim 10, characterized in that The drive assembly further includes: a power supply, for providing electrical energy to the drive motor; The first gear is connected to the output shaft of the driving motor and meshed with the transmission member.

12. The electric hair trimmer according to claim 11, characterized in that Also includes: An upper shell and an upper cover plate, wherein the upper shell and the upper cover plate are connected to form an upper accommodating cavity, and the cutting assembly and the driving assembly are arranged in the upper accommodating cavity; A lower shell and a lower cover plate, wherein the lower shell and the lower cover plate are connected to form a hair storage bin, and the hair storage bin is used to store broken hair trimmed by the fixed cutter and the movable cutter; Wherein, the upper shell and the lower shell are rotatably connected, and an elastic member is provided between the upper shell and the lower shell.

13. The electric hair trimmer according to claim 12, wherein: It also includes a circuit board and a power display, which are located in the upper accommodating cavity formed by the upper shell and the upper cover, and the circuit board is electrically connected to the power supply and the power display.

14. The electric hair trimmer according to claim 13, wherein: The lower cover is also provided with a bin cover, a sliding member and a fixing member. The lower cover is provided with a limiting slide groove. The fixing member is fixed to the lower cover, and the sliding member is movably provided in the limiting slide groove. One end of the sliding member is connected to the lower cover through a spring, and one side of the bin cover is used to be engaged with the lower cover, and the other side of the bin cover is used to abut against the end of the sliding member away from the spring.

Images