CN218857027U

CN218857027U - Reciprocating type electric hair trimmer

Info

Publication number: CN218857027U
Application number: CN202223228563.5U
Authority: CN
Inventors: 吴让攀
Original assignee: Zhongshan Xiaoshi Ceramic Blade Co ltd
Current assignee: Zhongshan Xiaoshi Ceramic Blade Co ltd
Priority date: 2022-12-03
Filing date: 2022-12-03
Publication date: 2023-04-14
Anticipated expiration: 2032-12-03

Abstract

The utility model discloses a reciprocating type electronic hair trimmer, the electric iron comprises a handle, the up end of slope around the handle is equipped with, the up end is long and narrow, and its length direction corresponds the direction of slope, the well upper portion of handle is equipped with the handle flat part of upwards narrowing gradually to the up end from the left and right sides, the upper end of handle flat part is equipped with the blade subassembly that the cutting end stretches out from the up end, the cutting end of blade subassembly follows the up end slope and sets up, be equipped with the drive arrangement of drive blade subassembly cutting in the handle, have simple structure, the nimble convenient characteristics of operation to be used for repairing eyebrow, and other local hair.

Description

Reciprocating type electric hair trimmer

[ technical field ] A method for producing a semiconductor device

The utility model relates to a reciprocating type electric hair trimmer.

[ background of the invention ]

The direction of the blade of the existing reciprocating electric eyebrow plucker is generally approximately parallel to the direction of the handle and is basically in a straight line shape, one is the structural reference and the use habit consideration of the original manual straight-line-shaped hand plucker, and the other is the reciprocating motion driving of the driving structure to the moving blade which is easy to realize while ensuring that the volume of the handle is not too large.

The straight-line type cutter is usually used by grasping the handle with the palm and then swinging the handle transversely to swing the position of the blade, and the straight-line type cutter is very convenient to use when facing other people. It is also very convenient when used by oneself, when there are no very high demands on shape and accuracy like shaving or shaving. However, when eyebrow trimming is performed, since eyebrow is shaped and has a plurality of different directions, precision of eyebrow trimming is required, when eyebrow trimming is performed by facing a mirror, the posture of holding a knife in some directions is not easy, and the blade unit of the reciprocating electric eyebrow trimming knife is not controlled by swinging the handle transversely to move the blade unit to cut eyebrow, and since the blade unit of the reciprocating electric eyebrow trimming knife is used for automatically trimming hair, eyebrow trimming is easy to be performed by carelessly controlling the moving range or direction of the blade unit, and the eyebrow trimming is not satisfactory enough.

The present invention has been made for this purpose.

[ Utility model ] content

The technical problem to be solved by the utility model is to provide a reciprocating electric hair trimmer with simple structure and flexible and convenient operation, which is used for trimming eyebrows and other local hairs.

In order to solve the technical problem, the utility model relates to a reciprocating type electronic hair trimmer, the electric iron comprises a handle, the up end of slope around the handle is equipped with, the up end is personally submitted long and narrow type, and its length direction corresponds the direction of slope, the well upper portion of handle is equipped with the handle flat part of upwards narrowing gradually to the up end from the left and right sides, the upper end of handle flat part is equipped with the blade subassembly that the cutting end stretches out from the up end, the cutting end of blade subassembly follows the up end slope and sets up, be equipped with the drive arrangement of drive blade subassembly cutting in the handle.

A reciprocating electric hair trimmer as described above, the angle A1 between the cutting end of said upper end face and/or blade assembly and the longitudinal axis L1 of the handle is between 30 ° and 60 °.

The reciprocating type electric hair trimmer comprises a blade assembly, wherein the blade assembly comprises a rigid movable blade and a fixed blade which are arranged on the left and right sides, the head of the fixed blade is provided with a plurality of fixed cutting teeth, the head of the movable blade is provided with a plurality of movable cutting teeth, the movable cutting teeth are positioned on the inner side of the outer edge of the fixed cutting teeth, the movable blade is positioned on the inner side of the fixed blade to move, the fixed blade is fixed on the flat part of a handle, the movable blade is limited to move linearly, and the movable cutting teeth and the fixed cutting teeth form a cutting end of the blade assembly.

The reciprocating type electric hair trimmer comprises a motor and a control assembly, wherein the motor is arranged along the length direction of a handle, the control assembly is used for controlling the motor to work, an eccentric wheel is fixed on a rotating shaft of the motor, the moving direction D of a movable blade is inclined to the longitudinal axis L1 of the handle, a plurality of fixed cutting teeth and movable cutting teeth are respectively arranged along the moving direction D of the movable blade, and a transmission assembly used for converting the rotation of the eccentric wheel into the reciprocating linear motion of the movable blade is arranged between the eccentric wheel and the movable blade.

According to the reciprocating type electric hair trimmer, the blade sliding block is arranged on the flat part of the handle and limited to linearly slide, the movable blade is mounted on the blade sliding block and drives the movable blade to synchronously reciprocate linearly through the blade sliding block, and the transmission assembly is connected between the motor and the blade sliding block and used for converting the rotation of the rotating shaft into the reciprocating linear motion of the blade sliding block.

According to the reciprocating type electric hair trimmer, the movable blade and the blade sliding block are both positioned on the left side of the fixed blade, the transmission assembly is positioned on the right side of the fixed blade, the middle part of the fixed blade is provided with the movable hole, and the blade sliding block is exposed out of the movable hole and is connected with the transmission assembly at the position of the movable hole.

The reciprocating type electric hair trimmer is characterized in that the blade sliding block comprises a left sliding portion and a right sliding portion, a sliding rail is arranged on the flat portion of the handle and is in sliding fit with the left sliding portion to perform linear motion, the right sliding portion penetrates through the movable hole and is in sliding fit with the movable hole to perform linear motion, an installation step is arranged on the blade sliding block, the movable blade is provided with an installation hole, and the movable blade penetrates through the right sliding portion through the installation hole and is installed on the installation step.

According to the reciprocating type electric hair trimmer, the elastic part used for elastically pressing the movable blade towards the fixed blade is arranged on the left side of the movable blade, the elastic part comprises the integrally formed fixed blade and the elastic arm extending from the fixed blade, the elastic arm is pressed at the position close to the movable cutting teeth, the fixed blade is provided with the positioning hole, and the sliding rail is located on the inner side of the positioning hole and used for positioning the fixed blade.

The transmission assembly comprises a first swing rod and a second swing rod, the middle of the first swing rod and the middle of the second swing rod are hinged to the flat portion of the handle, an eccentric shaft parallel to the rotating shaft is eccentrically arranged on the eccentric wheel, a clamping groove sleeved on the eccentric shaft is formed in one end of the first swing rod, the clamping groove is matched with the eccentric shaft and enables the first swing rod to swing in a reciprocating mode through rotation of the eccentric shaft, the other end of the first swing rod is connected with one end of the second swing rod and drives the second swing rod to swing in a reciprocating mode when the first swing rod swings in a reciprocating mode, the other end of the second swing rod is connected with the blade sliding block and drives the blade sliding block to slide in a reciprocating mode when the second swing rod swings in a reciprocating mode, and the first swing rod, the second swing rod, the blade sliding block and the moving blade sliding block are installed in the same direction.

According to the reciprocating type electric hair trimmer, the hinged shafts of the first swing rod, the second swing rod and the handle flat part are positioned or basically positioned on the axis L2 of the rotating shaft, the two transmission ends of the first swing rod and the hinged shaft of the first swing rod are collinear or basically collinear, the two transmission ends of the second swing rod and the hinged shaft of the second swing rod are not collinear, the first swing rod and the fixed blade are positioned on the left side of the second swing rod, the right side of the blade sliding block is provided with the strip-shaped driving groove which is concave and exposed in the movable hole, the second swing rod is provided with the circular connecting column which is convex towards the left and is inserted into the driving groove, and the first swing rod and the second swing rod are connected through the strip-shaped hole arranged on one of the first swing rod and the strip-shaped hole arranged on the other of the first swing rod and the second swing rod which is provided with the matched cylinder.

Compared with the prior art, the utility model discloses there is following advantage:

1. the utility model discloses a set up slope and long and narrow up end on the handle to set up the blade subassembly that corresponds the slope at the up end, can hold the handle like holding a pen, go to prune eyebrow or other local hair through the blade subassembly on the up end, when trimming eyebrow, can provide more nimble and accurate controlling.

2. The flat part of the handle is used as the middle upper part of the handle, the handle is gradually flattened from bottom to top, and the upper end surface is long and narrow, so that the knife surface of the blade assembly can be favorably attached to the skin, and the hair can be better cut; in addition, when the hand grip is used for trimming the eyebrows facing the mirror like holding a pen, the flat part of the hand grip can better leave the space, so that the hand grip can stand as much as possible when the flat part of the hand grip the skin, and the overlarge angle between the hand grip and the skin is avoided, so that the hand can more flexibly and naturally hold the pen for trimming the eyebrows. In addition, the flat direction of the flat portion of the handle corresponds to the blade assembly, the flat portion of the handle is used as the middle upper portion of the handle and can be used as a holding portion, and the flat structure is beneficial to sensing the direction when the handle is held and quickly positioning the direction of the blade assembly according to the correct direction for use.

3. The motor sets up along handle length direction, and the direction of motion of moving blade inclines in the axis of pivot, and is a plurality of decide the cutting tooth and move the cutting tooth and arrange along the direction of motion of moving blade respectively, satisfy the certain angle of arranging direction and the direction of motion slope of the cutting tooth of handle and moving blade, it is small moreover, do benefit to the use of repairing eyebrow.

4. The transmission assembly is connected with the blade sliding block from the position of the movable hole, the right sliding portion on the blade sliding block penetrates through the movable hole and is in sliding fit with the movable hole, when the blade sliding block is driven, the force-bearing point of the blade sliding block corresponds to the right sliding portion of the blade sliding block, the formation of torsion is reduced, the friction force between the hole wall of the right sliding portion and the movable hole and between the left sliding portion and the side wall of the sliding rail is reduced, and arc swing of the blade sliding block and the movable blade during reciprocating motion can be prevented.

5. The installation directions of the first swing rod, the second swing rod, the blade sliding block and the movable blade are the same, so that the moving planes of the four parts are parallel, the first swing rod, the second swing rod, the blade sliding block and the movable blade are installed in the left-right direction, and the first swing rod, the second swing rod and the blade sliding block move in the plane in the direction of the right side view.

[ description of the drawings ]

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings, in which:

FIG. 1 is a schematic structural view of a reciprocating electric hair trimmer according to the present invention;

FIG. 2 is a front view of a reciprocating electric hair trimmer of the present invention;

FIG. 3 is an exploded view of a reciprocating electric hair trimmer according to the present invention;

FIG. 4 is a schematic view of the blade assembly and drive mechanism mounted on the handle flats;

FIG. 5 is an enlarged view of a portion of FIG. 4 at C;

FIG. 6 is a side view of a reciprocating electric hair trimmer according to the present invention;

FIG. 7 is a cross-sectional view taken along line B-B of FIG. 6;

FIG. 8 is a bottom view of the blade assembly;

FIG. 9 is a reference view of the reciprocating electric hair trimmer of the present invention as viewed from the back of a person looking forward during use;

FIG. 10 is a schematic structural view of the support plane P formed by the side edges of the upper end face and the blade assembly blade tips;

fig. 11 is a use reference view of the reciprocating electric hair trimmer of the present invention as viewed from the side of a person when in use.

[ detailed description ] A

The invention will be further described with reference to the accompanying drawings:

fig. 1 to 8 show a reciprocating type electric hair trimmer, including handle 1, handle 1 is equipped with up end 11 of slope from beginning to end, up end 11 is long and narrow form, and its length direction corresponds the direction of slope, the well upper portion of handle 1 is equipped with upwards narrows down the handle flat 12 of up end 11 from the left and right sides gradually, the upper end of handle flat 12 is equipped with cutting end from the blade subassembly 2 that up end 11 stretches out, the cutting end of blade subassembly 2 follows up end 11 slope and sets up, be equipped with the drive arrangement of drive blade subassembly 2 cutting in the handle 1, simple structure, small.

The handle 1 can be a straight structure by matching with the blade component 2 obliquely arranged on the upper end surface 11, or the middle upper part is a straight structure, so that the handle 1 can be held like holding a pen, and the eyebrow H or hairs in other places can be trimmed by the blade component 2 on the upper end surface 11, as shown in figure 9, when the eyebrow is trimmed, more flexible and accurate control is provided.

The handle flat part 12 is used as the middle upper part of the handle 1, and is gradually flattened from bottom to top, the upper end surface 11 is long and narrow, preferably, the width M of the upper end surface 11 is less than 4mm, the side edge of the upper end surface 11 and the knife tip of the blade assembly 2 form an initial fulcrum, the two form a support plane P, the knife surface of the blade assembly 2 is tilted relative to the support plane P, and has a small tilting angle A3, and the side surface of the handle flat part 12 deviates from the support plane P, as shown in fig. 10; the skin S has elasticity, as shown in fig. 11, when in use, pressure is usually applied, the contact area between the side edge of the upper end face 11 and the skin is small, which is beneficial to deforming the skin, and the handle is beneficial to being turned towards one side of the skin, while the knife tip of the blade assembly 2 is still attached to the skin, so that the angle A4 between the knife face of the blade assembly 2 and the skin is smaller than the angle A3, which is beneficial to enabling the knife face of the blade assembly 2 to be close to the skin S, and the hair-cutting effect is improved; in addition, when holding the handle 1 like a pen to trim eyebrows by oneself against a mirror, the excessively large angle A5 between the handle and the skin can be avoided, and the reciprocating type electric hair trimmer needs to be placed at the position of eyebrows by holding the handle with the arms bent due to trimming of eyebrows by oneself, and the larger the angle A5 is, the larger the angle is, the larger the wrist needs to be twisted outwards relative to the forehead, so that the holding posture is easy to be changed to be not natural.

In addition, the flat direction of the flat handle part 12 corresponds to the blade component 2, the flat handle part 12 is used as the middle upper part of the handle 1 and can be used as a holding part, and the flat structure is beneficial to sensing the direction when holding and quickly positioning the direction of the blade component 2 according to the correct direction for use.

The angle A1 between the upper end face 11 and the cutting end of the blade assembly 2 and the longitudinal axis L1 of the handle 1 is between 30 ° and 60 °, which angle range facilitates a flexible use of the handle like a pen grip when the blade assembly 2 is cut against the skin, preferably between 40 ° and 50 °.

Specifically, blade subassembly 2 is including controlling rigid moving blade 3 and the stationary blade 4 that sets up, be equipped with a plurality of fixed cutting teeth 41 on the head of stationary blade 4, be equipped with a plurality of cutting teeth 31 that move on the head of moving blade 3, it is inboard that the cutting teeth 31 that move is located the head of fixed cutting teeth 41, moving blade 3 is located the inboard motion of stationary blade 4, stationary blade 4 is fixed on handle flat 12, moving blade 3 is injectd and is linear motion, move cutting teeth 31 and fixed cutting teeth 41 constitution blade subassembly 2's cutting end. When the skin-cutting knife is used, the outer side face of the fixed blade 4 is used as a knife face to move towards the skin, so that the skin can be prevented from being cut by the passive cutting teeth 41, and the safety is good.

A U-shaped hair inlet groove 43 is formed between every two adjacent fixed cutting teeth 41, and the width W of the hair inlet groove 43 is less than or equal to 0.30mm.

As shown in the embodiment of fig. 3 to 8, the driving device includes a motor 5 disposed along the length direction of the handle 1, and a control component for controlling the operation of the motor 5, the control component is composed of a switch 501, a circuit board 502 and a power supply source, wherein the motor 5 is connected to the circuit board through a cable, an eccentric wheel 6 is fixed on a rotating shaft 51 of the motor 5, the moving direction D of the movable blade 3 is inclined to the longitudinal axis L1 of the handle 1, the plurality of fixed cutting teeth 41 and the movable cutting teeth 31 are respectively arranged along the moving direction D of the movable blade 3, and a transmission component for converting the rotation of the eccentric wheel 6 into the reciprocating linear motion of the movable blade 3 is disposed between the eccentric wheel 6 and the movable blade 3.

An included angle A2 between the moving direction D of the movable blade 3 and the longitudinal axis L1 of the handle 1 meets the condition that A2=45 degrees +/-15 degrees.

As shown in fig. 3, 4, 7 and 8, in the embodiment, the blade slider 7 made of plastic material is disposed on the flat portion 12 of the handle, the blade slider 7 is limited to slide linearly, the moving blade 3 is mounted on the blade slider 7 and drives the moving blade 3 to reciprocate linearly through the blade slider 7, the transmission assembly is connected between the motor 5 and the blade slider 7 and is used for converting the rotation of the rotating shaft 51 into the reciprocating linear motion of the blade slider 7, and the blade slider limiting the linear sliding drives the moving blade to move together, so that the stability of the moving blade is improved and the shearing performance is ensured.

As shown in fig. 3 and 7, in the embodiment, an elastic member 10 for elastically pressing the movable blade 3 against the fixed blade 4 is disposed on the left side of the movable blade 3, so as to facilitate the movement of the movable cutting teeth against the fixed cutting teeth and improve the cutting sharpness.

As shown in the embodiments of fig. 3, 4 and 7, the movable blade 3 and the blade slider 7 are both located on the left side of the fixed blade 4, the transmission assembly is located on the right side of the fixed blade 4, because the movable cutting teeth move against the fixed cutting teeth, friction exists between the movable cutting teeth and the resistance of hair during shearing, a movable hole 42 is formed in the middle of the fixed blade 4, and the blade slider 7 is exposed from the movable hole 42 and connected with the transmission assembly at the position of the movable hole 42, so that when the movable blade is driven, the force point of the movable blade is closer to the movable cutting teeth, and the stability of the movable blade during shearing is improved.

Blade slider 7 includes left sliding part 71 and right sliding part 72, be equipped with slide rail 13 on the handle flat portion 12 and carry out linear motion with left sliding part 71 sliding fit, right sliding part 72 passes activity hole 42 and carries out linear motion with activity hole 42 sliding fit, and gliding stability is good. Because the transmission assembly is connected with the blade slider from the position of the movable hole, when the blade slider is driven, the force-bearing point of the blade slider corresponds to the right sliding part of the blade slider, so that the formation of torsion is reduced, the friction between the right sliding part and the hole wall of the movable hole and between the left sliding part and the side wall of the sliding rail is reduced, and the blade slider and the movable blade can be prevented from generating arc swing during reciprocating motion.

The blade slider 7 is provided with a mounting step 73, the moving blade 3 is provided with a mounting hole 32, the moving blade 3 passes through the right sliding part 72 through the mounting hole 32, is mounted on the mounting step 73 and is attached to the left side of the fixed blade 4, and the blade slider is simple in structure and convenient to mount. Of course, the movable blade and the blade slider may be integrally formed and fixed on the blade slider.

The elastic part 10 comprises a fixing plate 101 and an elastic arm 102, the fixing plate 101 is integrally formed, the elastic arm 102 extends from the fixing plate 101, the elastic arm 102 is pressed against the position close to the movable cutting tooth 31, the movable cutting tooth 31 is favorably attached to the fixed cutting tooth, the fixing plate 101 is provided with a positioning hole 103, the sliding rail 13 is located on the inner side of the positioning hole 103 and used for positioning the fixing plate 101, and the elastic part is simple in structure, reasonable in layout and beneficial to size reduction.

As shown in fig. 3 to 5, in the embodiment, the transmission assembly includes a first swing link 8 and a second swing link 9, the middle of which is hinged on the handle flat portion 12, an eccentric shaft 61 parallel to the rotating shaft 51 is eccentrically arranged on the eccentric shaft 6, one end of the first swing link 8 is provided with a clamping groove 81 sleeved on the eccentric shaft 61, the clamping groove 81 is matched with the eccentric shaft 61 and rotates to make the first swing link 8 swing reciprocally through the eccentric shaft 61, the other end of the first swing link 8 is connected with one end of the second swing link 9 and drives the second swing link 9 to swing reciprocally when the first swing link 8 swings reciprocally, the other end of the second swing link 9 is connected with the blade slider 7 and drives the blade slider 7 to slide reciprocally when the second swing link 9 swings, the first swing link 8, the second swing link 9, the blade slider 7 and the movable blade 3 are installed in the same direction, so that the moving planes of the first swing link 8, the second swing link 9, the blade slider 7 and the movable blade 3 are parallel, the first swing link, the second swing link, the blade slider and the movable blade slider are installed left and right, as shown in fig. 4, so that the first swing link, the second swing link, the blade slider and the first swing link 8, the second swing link and the blade slider are installed in the same in the plane in the right direction, and the plane, so that the flat side view of the handle flat side view is convenient for reducing the handle flat handle 12.

The hinged shafts 14 of the first swing link 8, the second swing link 9 and the handle flat part 12 are positioned or basically positioned on the axis L2 of the rotating shaft 51, two transmission ends of the first swing link 8 and the hinged shaft 14 thereof are collinear or basically collinear, and two transmission ends of the second swing link 9 and the hinged shaft 14 thereof are not collinear, so that the width of a transmission assembly is favorably reduced; the first swing rod 8 and the fixed blade 4 are positioned on the left side of the second swing rod 9, the strip-shaped driving groove 74 which is concave and exposed in the movable hole 42 is formed in the right side of the blade slider 7, the second swing rod 9 is provided with a circular connecting column 91 which is convex towards the left and inserted into the driving groove 74, and the thicknesses of the first swing rod, the second swing rod and the blade slider in the left-right direction are favorably reduced; the first swing rod 8 and the second swing rod 9 are connected through a strip-shaped hole arranged on one of the first swing rod and a matched cylinder arranged on the other of the first swing rod and the second swing rod. The structure is simple, and the volume is reduced.

Claims

1. A reciprocating electric hair trimmer characterized in that: including handle (1), up end (11) of slope around handle (1) is equipped with, up end (11) are long and narrow type, and its length direction corresponds the direction of slope, the well upper portion of handle (1) is equipped with upwards narrows handle flat portion (12) to up end (11) from the left and right sides gradually, the upper end of handle flat portion (12) is equipped with cutting end blade subassembly (2) of following up end (11) and stretching out, the cutting end of blade subassembly (2) is followed up end (11) slope and is set up, be equipped with the drive arrangement of drive blade subassembly (2) cutting in handle (1).

2. A reciprocating electric hair trimmer according to claim 1 wherein: the angle A1 between the upper end face (11) and/or the cutting end of the blade assembly (2) and the longitudinal axis (L1) of the handle (1) is between 30 ° and 60 °.

3. A reciprocating electric hair trimmer according to claim 1 wherein: blade subassembly (2) are including controlling rigid moving blade (3) and stationary blade (4) that sets up, be equipped with a plurality of fixed cutting teeth (41) on the head of stationary blade (4), be equipped with a plurality of cutting teeth (31) of moving on the head of moving blade (3), it is inboard to move the outward flange that cutting teeth (31) are located fixed cutting teeth (41), moving blade (3) are located the inboard motion of stationary blade (4), stationary blade (4) are fixed on handle flat portion (12), linear motion is prescribed a limit to moving blade (3), move cutting teeth (31) and fixed cutting teeth (41) and constitute the cutting end of blade subassembly (2).

4. A reciprocating electric hair trimmer according to claim 3 wherein: the driving device comprises a motor (5) arranged along the length direction of the handle (1) and a control assembly for controlling the motor (5) to work, wherein an eccentric wheel (6) is fixed on a rotating shaft (51) of the motor (5), the moving direction (D) of the movable blade (3) is inclined to the longitudinal axis (L1) of the handle (1) and is multiple, the fixed cutting teeth (41) and the movable cutting teeth (31) are arranged along the moving direction (D) of the movable blade (3) respectively, and a transmission assembly used for converting the rotation of the eccentric wheel (6) into the reciprocating linear motion of the movable blade (3) is arranged between the eccentric wheel (6) and the movable blade (3).

5. A reciprocating electric hair trimmer according to claim 4 wherein: the handle flat part (12) is provided with a blade sliding block (7), the blade sliding block (7) is limited to slide linearly, the moving blade (3) is installed on the blade sliding block (7) and drives the moving blade (3) to synchronously do reciprocating linear motion through the blade sliding block (7), and the transmission assembly is connected between the motor (5) and the blade sliding block (7) and used for converting the rotation of the rotating shaft (51) into the reciprocating linear motion of the blade sliding block (7).

6. A reciprocating electric hair trimmer according to claim 5 wherein: the movable blade (3) and the blade sliding block (7) are located on the left side of the fixed blade (4), the transmission assembly is located on the right side of the fixed blade (4), a movable hole (42) is formed in the middle of the fixed blade (4), and the blade sliding block (7) is exposed from the movable hole (42) and is connected with the transmission assembly at the position of the movable hole (42).

7. A reciprocating electric hair trimmer according to claim 6 wherein: blade slider (7) include left sliding part (71) and right sliding part (72), be equipped with slide rail (13) and left sliding part (71) sliding fit on handle flat portion (12) and carry out rectilinear motion, right side sliding part (72) pass activity hole (42) and carry out rectilinear motion with activity hole (42) sliding fit, be equipped with installation step (73) on blade slider (7), moving blade (3) are equipped with mounting hole (32), moving blade (3) pass right sliding part (72) through mounting hole (32) and install on installation step (73).

8. A reciprocating electric hair trimmer according to claim 7 wherein: the left side of moving blade (3) is equipped with elastic component (10) that are used for going toward stationary blade (4) elasticity roof pressure with moving blade (3), elastic component (10) are including integrated into one piece's stationary blade (101) and from going up the bullet arm (102) of stretching of stationary blade (101), bullet arm (102) roof pressure is being close to the position that moves cutting tooth (31), stationary blade (101) are equipped with locating hole (103), slide rail (13) are located locating hole (103) inboard and are fixed a position stationary blade (101).

9. A reciprocating electric hair trimmer according to any one of claims 5 to 8 wherein: the transmission assembly comprises a first swing rod (8) and a second swing rod (9) of which the middle parts are hinged to a handle flat part (12), an eccentric shaft (61) parallel to a rotating shaft (51) is eccentrically arranged on the eccentric wheel (6), a clamping groove (81) sleeved on the eccentric shaft (61) is formed in one end of the first swing rod (8), the clamping groove (81) is matched with the eccentric shaft (61) and rotates through the eccentric shaft (61) to enable the first swing rod (8) to swing in a reciprocating mode, the other end of the first swing rod (8) is connected with one end of the second swing rod (9) and drives the second swing rod (9) to swing in a reciprocating mode when the first swing rod (8) swings in a reciprocating mode, the other end of the second swing rod (9) is connected with the blade sliding block (7) and drives the blade sliding block (7) to slide in a reciprocating mode when the second swing rod (9) swings in a reciprocating mode, and the installation directions of the first swing rod (8), the second swing rod (9), the blade sliding block (7) and the movable blade (3) are the same.

10. A reciprocating electric hair trimmer according to claim 9 wherein: the handle is characterized in that the first swing rod (8) and the second swing rod (9) are located or basically located on an axis (L2) of a rotating shaft (51) together with a hinge shaft (14) of a handle flat part (12), two transmission ends of the first swing rod (8) are collinear or basically collinear with the hinge shaft (14), two transmission ends of the second swing rod (9) are not collinear with the hinge shaft (14), the first swing rod (8) and the fixed blade (4) are located on the left side of the second swing rod (9), the right side of the blade sliding block (7) is provided with an inwards concave strip-shaped driving groove (74) exposed in the movable hole (42), the second swing rod (9) is provided with a circular connecting column (91) protruding towards the left and inserted into the driving groove (74), and the first swing rod (8) and the second swing rod (9) are connected with a matched cylinder by arranging a strip-shaped hole on one of the other swing rod (8) and the second swing rod (9).