CN217243006U - Hair-dressing device - Google Patents

Abstract

The utility model discloses a hairdressing device, include: the hair heating device comprises a first shell, a second shell and an adjusting component, wherein the first shell and the second shell are used for heating hair; the adjusting assembly comprises an adjusting part, a first connecting plate and a second connecting plate, the first connecting plate is connected with the first shell, and the second connecting plate is connected with the second shell; first connecting plate and second connecting plate all are connected in regulation portion and for regulation portion movable setting, rotate regulation portion, first connecting plate and second connecting plate are close to each other or keep away from. In the process of using the hairdressing device provided by the utility model, the same hairdressing device can generate various different modeling sizes, generate rolling flowers with various sizes, form more diversified modeling effects and avoid frequent replacement of the hairdressing device; and the adjustment process is convenient, only need the rotation adjustment subassembly can, can adjust at any time in the use.

Description

Hair-beauty device

Technical Field

The utility model relates to a hair-dressing molding equipment technical field, more specifically say, relate to a hair-dressing ware.

Background

Hair irons are the main tools for styling hair, and common hair irons include electric hair irons and steam hair irons. The heating and warming functions of the electric hair iron are realized by a resistance wire or other heating elements arranged in the electric hair iron, when the electric hair iron is used, the hair bundle is wound on the hair roller, meanwhile, the hair roller is electrified and heated, the heat is radiated outwards by the hair wound on the inner layer to heat the hair, and the hair is enabled to generate the required styling effect according to the winding mode.

The diameter of a winding drum in the hair iron in the prior art is fixed, or only 2-3 diameters are controllable, so that the design and the shaping of a stylist are not facilitated to be diversified, and the commonly used shaping diameters are 25mm, 32mm and 38mm, so that the curly flower size of a hair style which is curled by using the conventional hair iron is fixed, and the requirements for curly flowers with different sizes cannot be met.

In view of the above, how to improve the variety of hair waving and styling of the hair curler is a problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a hair curler, which can adjust the distance between the first connecting plate and the second connecting plate by rotating the adjusting portion during the use process, so as to adjust the distance between the first housing and the second housing, so that the outer diameter of the portion for heating hair can be changed, thereby improving the variety of hair waving and styling of the hair curler.

In order to achieve the above object, the present invention provides the following technical solutions:

a hair clipper, comprising: the hair conditioning device comprises a first shell, a second shell and a conditioning component, wherein the first shell and the second shell are used for heating hair;

the adjusting assembly comprises an adjusting part, a first connecting plate and a second connecting plate, the first connecting plate is connected with the first shell, and the second connecting plate is connected with the second shell;

the first connecting plate and the second connecting plate are connected to the adjusting portion and movably arranged relative to the adjusting portion, and when the adjusting portion is rotated, the first connecting plate and the second connecting plate approach or move away from each other.

Optionally, the adjusting portion includes a screw at least partially provided with an external thread, and a nut in threaded connection with the screw, and protruding shafts are symmetrically arranged at two ends of the nut in a direction perpendicular to the screw;

the first connecting plate is provided with a first sliding groove, and the second connecting plate is provided with a second sliding groove; the convex shaft penetrates through the first sliding groove and the second sliding groove and is movably arranged along the first sliding groove and the second sliding groove; and the first connecting plate and the second connecting plate are respectively arranged on two opposite sides of the nut.

Optionally, the first sliding groove and the second sliding groove are both obliquely arranged relative to the axial direction of the screw, and the first sliding groove and the second sliding groove are mirror-symmetric with respect to the central plane of the screw, so that when the nut slides in the first sliding groove and the second sliding groove, the first connecting plate and the second connecting plate are relatively close to or far away from each other.

Optionally, at least one of the first and second sliding slots penetrates through a side of the first or second connecting plate.

Optionally, a first guide seat and a second guide seat are rotatably sleeved on the periphery of the screw rod, and the nut is located between the first guide seat and the second guide seat;

the hairdressing device also comprises a first side plate and a second side plate, the first side plate and the second side plate are respectively connected to two opposite sides of the first guide seat and the second guide seat, and the distance between the first side plate and the second side plate is adjustable;

the first side plate and the second side plate are located in a space surrounded by the first shell and the second shell, and the outer side of the first side plate and the outer side of the second side plate are abutted to the inner side of the first shell and the inner side of the second shell so as to seal a gap between the first shell and the second shell.

Optionally, the first guide seat and the second guide seat are provided with a first long round hole for mounting the first side plate and a second long round hole for mounting the second side plate; the first side plate and the second side plate are movably arranged along a moving direction perpendicular to the first connecting plate.

Optionally, the portable electronic device further comprises a first elastic piece and a second elastic piece, the first elastic piece is used for pushing the first side plate to abut against the first shell and the second shell, and the second elastic piece is used for pushing the second side plate to abut against the first shell and the second shell.

Optionally, the width of each of the first side plate and the second side plate is greater than the width of the maximum gap between the first casing and the second casing.

Optionally, the first casing and the second casing are both cylindrical, the cross sections of the first casing and the second casing are semicircular, and the outer side surfaces of the first side plate and the second side plate are both arc surfaces protruding outwards.

Optionally, one end of the screw rod is fixedly connected with a head cover, the other end of the screw rod is sleeved with a gear elastic sheet, and the screw rod extending into the gear elastic sheet is provided with a plane in contact with the gear elastic sheet.

Use the utility model provides an in-process of hair-dressing device, when the volume of the curly flower that the hair formed in the molding process is adjusted to needs, can rotate regulation portion, make first connecting plate and second connecting plate be close to relatively or keep away from, because first connecting plate is connected with first casing, the second connecting plate is connected with the second casing, therefore, the in-process that first connecting plate and second connecting plate are close to relatively or keep away from, the distance between first casing and the second casing changes thereupon, first casing and second casing form and are used for carrying out the surface that heats to the hair, thereby make the size of the part that heats the hair change, and then make the curly flower size that the in-process hair formed change.

Compared with the prior art, in the process of using the hairdressing device provided by the utility model, the same hairdressing device can generate various different modeling sizes, generate rolling flowers with various sizes, form more diversified modeling effects and avoid frequent replacement of the hairdressing device; and the adjustment process is convenient, only need the rotation adjustment subassembly can, can adjust at any time in the use.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is an exploded view of an embodiment of the present invention;

FIG. 2 is a schematic view of a partial explosion of the hair clipper;

FIG. 3 is a schematic view of a first embodiment of the hair clipper assembly process;

FIG. 4 is a schematic structural view of a second embodiment of the hair clipper assembly process;

FIG. 5 is an isometric view of a portion of the construction of the hair clipper;

FIG. 6 is a side view of the structure of FIG. 5;

FIG. 7 is a schematic cross-sectional view taken along the line A-A in FIG. 6;

FIG. 8 is an enlarged view of a portion F of FIG. 7;

FIG. 9 is a schematic view of the screw structure;

FIG. 10 is a schematic structural view of an elastic barrier;

FIG. 11 is a schematic view of the assembled structure of the screw and the elastic stopper;

fig. 12 is a schematic structural view of the hair clipper of the present invention with the first and second housings being in close proximity;

fig. 13 is a top view of the hair clipper of fig. 12;

FIG. 14 is a schematic cross-sectional view taken along line C-C of FIG. 13;

FIG. 15 is a schematic cross-sectional view of another angle in the state shown in FIG. 12;

FIG. 16 is a cross-sectional view taken along line B-B of FIG. 15;

fig. 17 is a schematic structural view of the hair clipper of the present invention with the first and second housings spaced far apart;

fig. 18 is a top view of the hair clipper of fig. 17;

FIG. 19 is a schematic sectional view taken along the line G-G in FIG. 18;

FIG. 20 is a schematic cross-sectional view of another angle in the state of FIG. 17;

fig. 21 is a schematic sectional view taken along the direction H-H in fig. 20.

In FIGS. 1-21:

the structure comprises a head cover 1, a spring 2, a first guide seat 3, a first abutting side 31, a first long circular hole 32, a screw 33, a nut 4, a convex shaft 41, a first side plate 51, a second side plate 52, a second guide seat 6, a second abutting side 61, an aluminum plate front cover 7, a first aluminum plate 8, a first connecting plate 9, a first sliding chute 91, a pin shaft 10, an aluminum plate rear cover 11, a fixed seat 12, a guide hole 121, a gear elastic sheet 13, a pressing surface 131, a copper sleeve 14, a first snap ring 15, a second connecting plate 16, a second sliding chute 161, a second snap ring 17, a screw 18, a step 181, a first contact surface 182, a connection surface 183, a second aluminum plate 19, a first shell 20 and a second shell 21.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

The core of the utility model is to provide a hairdressing device, at the in-process that uses, can adjust the distance between first connecting plate and the second connecting plate through rotating regulating part to adjust the distance between first casing and the second casing, use and change in the external diameter size of the part that heats to the hair, improved the fashioned variety of hair-perming of hairdressing device.

Please refer to fig. 1-21.

The present embodiment discloses a hair dresser, as shown in fig. 1, the hair dresser comprises a first casing 20, a second casing 21 and an adjusting component, wherein the first casing 20 and the second casing 21 are used for heating hair; the adjusting component comprises an adjusting part, a first connecting plate 9 and a second connecting plate 16, wherein the first connecting plate 9 is connected with the first shell 20, and the second connecting plate 16 is connected with the second shell 21; the first connecting plate 9 and the second connecting plate 16 are each connected to and movably arranged relative to an adjusting portion, and the first connecting plate 9 and the second connecting plate 16 are moved toward or away from each other by rotating the adjusting portion.

It should be noted that the first connecting plate 9 and the second connecting plate 16 in this embodiment may approach or depart from each other synchronously or asynchronously, which is determined according to the actual situation.

In the process of using the hair dresser provided by the embodiment, when the size of curls formed by hair in the styling process needs to be adjusted, the adjusting part can be rotated to enable the first connecting plate 9 and the second connecting plate 16 to be relatively close to or far away from each other, and because the first connecting plate 9 is connected with the first shell 20 and the second connecting plate 16 is connected with the second shell 21, the distance between the first shell 20 and the second shell 21 changes along with the first connecting plate 9 and the second connecting plate 16 in the relatively close to or far away process, and the first shell 20 and the second shell 21 form a surface for heating the hair, so that the size of a part for heating the hair changes, and the size of the curls formed by the hair in the styling process changes.

Compared with the prior art, in the process of using the hairdressing device provided by the embodiment, the same hairdressing device can generate various different styling sizes and curly flowers with various sizes, so that a more diversified styling effect is formed, and frequent replacement of the hairdressing device is avoided; and the adjustment process is convenient, only need the rotation adjustment subassembly can, can adjust at any time in the use.

As shown in fig. 1-4, the adjusting portion includes a screw 18 at least partially provided with an external thread, and a nut 4 in threaded connection with the screw 18, and both ends of the nut 4 are symmetrically provided with protruding shafts 41 perpendicular to the direction of the screw 18;

the first connecting plate 9 is provided with a first chute 91, and the second connecting plate 16 is provided with a second chute 161; the protruding shaft 41 passes through the first sliding slot 91 and the second sliding slot 161 and is movably arranged along the first sliding slot 91 and the second sliding slot 161; and the first connecting plate 9 and the second connecting plate 16 are respectively arranged at two opposite sides of the nut 4.

As shown in fig. 1, the first housing 20 includes an aluminum plate front cover 7, a first aluminum plate 8 and an aluminum plate rear cover 11, the second housing 21 includes an aluminum plate front cover 7, a second aluminum plate 19 and an aluminum plate rear cover 11, during the assembly process, the first housing 20 and the second housing 21 can be assembled first, after the assembly is completed, the first connecting plate 9 is connected to the nut 4, and the protruding shaft 41 passes through the first sliding groove 91, preferably, the first connecting plate 9 is U-shaped, the two side walls of the first connecting plate 9 are provided with the first sliding grooves 91, the protruding shafts 41 on the two sides of the nut 4 are respectively inserted into the corresponding first sliding grooves 91, then the first connecting plate 9 is connected to the first housing 20, then the second connecting plate 16 is connected to the nut 4, the second connecting plate 16 is U-shaped, the two side walls of the second connecting plate 16 are provided with the second sliding grooves 161, the protruding shafts 41 on the two sides of the nut 4 are respectively inserted into the corresponding second sliding grooves 161, then, the second connecting plate 16 is connected to the second housing 21; for convenience of assembly, as shown in fig. 4, one of the first and second slide grooves 91 and 161 may penetrate through a side of the first or second connection plate 9 or 16.

As shown in fig. 1, the screw 18 is provided with a step 181, and in the assembling process, the second guide seat 6 is clamped at the step 181 and limited by the first clamping ring 15; the first guide seat 3 is arranged at the front end of the screw 18 and is limited by the second snap ring 17.

As shown in fig. 2 to 4, the first sliding groove 91 and the second sliding groove 161 are both disposed obliquely with respect to the axial direction of the screw 18, and the inclination directions of the first sliding groove 91 and the second sliding groove 161 are opposite, and the first sliding groove 91 and the second sliding groove 161 are mirror-symmetric with respect to the central plane of the screw 18, so that when the nut 4 slides in the first sliding groove 91 and the second sliding groove 161, the first connecting plate 9 and the second connecting plate 16 are relatively close to or far from each other.

The first sliding groove 91 and the second sliding groove 161 may also be arc-shaped sliding grooves, which is determined according to actual situations.

As shown in fig. 4, when the protruding shaft 41 is located at the position a of the first sliding groove 91 and the position d of the second sliding groove 161, the distance between the first housing 20 and the second housing 21 is smaller, and when the protruding shaft 41 moves from the position a to the position b of the first sliding groove 91 and moves from the position d to the position c of the second sliding groove 161, the distance between the first connecting plate 9 and the second connecting plate 16 gradually increases to relatively separate the first housing 20 and the second housing 21, so that the size of the aluminum plate heating surface formed by the first housing 20 and the second housing 21 increases, which is beneficial to forming curls with larger size and improving the variety of modeling. When the protruding shaft 41 moves from the position b to the position a of the first sliding groove 91 and moves from the position c to the position d of the second sliding groove 161, the distance between the first connecting plate 9 and the second connecting plate 16 gradually decreases to make the first casing 20 and the second casing 21 relatively close to each other, so that the size of the aluminum plate heating surface formed by the first casing 20 and the second casing 21 decreases, which is beneficial to forming curls with smaller size and improving the variety of modeling.

In a specific embodiment, the outer periphery of the screw 18 is rotatably sleeved with the first guide seat 3 and the second guide seat 6, and the nut 4 is positioned between the first guide seat 3 and the second guide seat 6;

the hairdressing device further comprises a first side plate 51 and a second side plate 52, wherein the first side plate 51 and the second side plate 52 are respectively connected to two opposite sides of the first guide holder 3 and the second guide holder 6, and the distance between the first side plate 51 and the second side plate 52 is adjustable; the first side plate 51 and the second side plate 52 are both located in a space surrounded by the first casing 20 and the second casing 21, and the outer side of the first side plate 51 and the outer side of the second side plate 52 are both abutted against the inner side of the first casing 20 and the inner side of the second casing 21, so as to close a gap between the first casing 20 and the second casing 21.

The first guide seat 3 and the second guide seat 6 are provided with a first long round hole 32 for mounting a first side plate 51 and a second long round hole for mounting a second side plate 52; the first side plate 51 is movably disposed along the length direction of the first oblong hole 32, and the second side plate 52 is movably disposed along the length direction of the second oblong hole. The length direction of the first oblong hole and the length direction of the second oblong hole are both perpendicular to the moving direction of the first connecting plate 9 or the second connecting plate 16.

As shown in fig. 5 to 8, the first guide holder 3 and the second guide holder 6 are each provided with a first elongated hole 32 for mounting the first side plate 51, the screw 33 is screwed to one end of the first side plate 51 through the first elongated hole 32 in the first guide holder 3, and the screw 33 is screwed to the other end of the first side plate 51 through the first elongated hole 32 in the second guide holder 6, so that the first side plate 51 can move in a direction perpendicular to the moving direction of the first connecting plate 9. The first guide holder 3 and the second guide holder 6 are provided with second oblong holes for mounting the second side plate 52, the screw 33 penetrates through the second oblong hole in the first guide holder 3 to be in threaded connection with one end of the second side plate 52, and the screw 33 penetrates through the second oblong hole in the second guide holder 6 to be in threaded connection with the other end of the second side plate 52, so that the second side plate 52 can move along the direction perpendicular to the moving direction of the first connecting plate 9.

As shown in fig. 7, the present invention further includes a first elastic member for pushing the first side plate 51 into abutment with the first and second housings 20 and 21, and a second elastic member for pushing the second side plate 52 into abutment with the first and second housings 20 and 21; and the widths of the first side plate 51 and the second side plate 52 are each larger than the width of the largest gap between the first casing 20 and the second casing 21.

In the using process, because the first side plate 51 and the second side plate 52 are both located in the space enclosed by the first shell 20 and the second shell 21, under the action of the first elastic piece, the first side plate 51 is abutted against the inner side walls of the first shell 20 and the second shell 21 so as to close the gap on one side between the first shell 20 and the second shell 21; under the action of the second elastic piece, the first side plate 51 abuts against the inner side walls of the first shell 20 and the second shell 21 so as to seal the gap on the other side between the first shell 20 and the second shell 21; in the use process, when the distance between the first casing 20 and the second casing 21 is increased, the first side plate 51 and the second side plate 52 move outwards to be always kept in contact with the first casing 20 and the second casing 21; when the distance between the first casing 20 and the second casing 21 is reduced, the first side plate 51 and the second side plate 52 contract inwards to compress the elastic member; preferably, as shown in fig. 5, the first elastic member and the second elastic member may be both provided as the spring 2, and one end of the spring 2 abuts against the first side plate 51 or the second side plate 52, and the other end abuts against the first abutting side surface 31 of the first guide holder 3 or the second abutting side surface 61 of the second guide holder 6.

In an embodiment, as shown in fig. 12 to 16, the distance between the first casing 20 and the second casing 21 is smaller, as shown in fig. 14, when the pin 10 is close to the inner side of the guide hole 121, as shown in fig. 16, the first side plate 51 and the second side plate 52 are folded inward, and the outer sides of the first side plate 51 and the second side plate 52 abut against the first casing 20 and the second casing 21.

In an embodiment, as shown in fig. 17 to 21, the distance between the first casing 20 and the second casing 21 is larger, as shown in fig. 17, when the pin 10 is close to the outer side of the guide hole 121, as shown in fig. 21, the first side plate 51 and the second side plate 52 are folded inward, and the outer sides of the first side plate 51 and the second side plate 52 are abutted against the first casing 20 and the second casing 21.

In a specific embodiment, the first casing 20 and the second casing 21 may be both cylindrical, the cross sections of the first casing 20 and the second casing 21 are semicircular, and the outer side surfaces of the first side plate 51 and the second side plate 52 are both arc surfaces protruding outwards; when the first casing 20 and the second casing 21 are far away from each other, the appearance of the heating surface formed by the first side plate 51, the second side plate 52, the first casing 20 and the second casing 21 is smooth, and the connecting surfaces 183 are in smooth transition, so that the modeling effect is improved.

As shown in fig. 9-11, a head cover 1 is fixedly connected to one end of the screw rod 18, a shift position spring piece 13 is sleeved on the other end of the screw rod 18, the cross section of the screw rod 18 extending into the shift position spring piece 13 is square, and the shift position spring piece 13 is in contact with two opposite surfaces of the screw rod 18.

As shown in fig. 1, the head cover 1 is fixed to the screw 18 by screws 33, and therefore, the screw 18 can be rotated by rotating the head cover 1.

As shown in fig. 9, a fixing seat 12 is disposed at one end of the screw 18, a copper bush 14 is disposed in the fixing seat 12, the screw 18 is rotatably disposed in the copper bush 14, the screw 18 extending into the shift position resilient piece 13 is provided with a plane contacting with the shift position resilient piece 13, preferably, the cross section of the screw 18 extending into the shift position resilient piece 13 is square, the screw 18 is provided with a first contact surface 182 and a connection surface 183, two pressing surfaces 131 of the shift position resilient piece 13 are respectively pressed against the opposite first contact surfaces 182, when the screw 18 is rotated, the first contact surface 182 does not contact with the pressing surface 131, the connection surface 183 contacts with the pressing surface 131, but the distance between the two opposite connection surfaces 183 is greater than the distance between the two opposite first contact surfaces 182, therefore, when the screw continues to rotate, after the first contact surface 182 contacts with the pressing surface 131 again, a sound is heard, so that the rotation process feels better, the rotation angle and the rotation gear can be determined accordingly.

As shown in fig. 1 to 21, in the using process of the hair clipper provided by the embodiment, the screw rod 18 can be rotated by rotating the head cover 1, and in the rotating process, the collision sound of the gear spring 13 and the screw rod 18 can be clearly heard, so that the hand feeling is improved, a user can obtain clear rotation feedback, and the adjustment of the user according to the feedback can be facilitated; in the process of rotation of the screw 18, the nut 4 moves along the axial direction of the screw 18, and in the process of movement of the nut 4, the nut can slide along the first sliding groove 91 and the second sliding groove 161, and because the first sliding groove 91 and the second sliding groove 161 are both arranged obliquely, in the process of sliding of the nut 4 along the first sliding groove 91 and the second sliding groove 161, the nut can push the first connecting plate 9 to be relatively close to or relatively far away from, and because the first shell 20 and the second shell 21 are respectively connected with the first connecting plate 9 and the second connecting plate 16, the nut can drive the first shell 20 and the second shell 21 to be relatively close to or far away from. The first side plate 51 and the second side plate 52 are kept in contact with the inner side walls of the first casing 20 and the second casing 21 in the process that the first casing 20 and the second casing 21 are relatively close to or far away from each other, so that the appearance of the heating surface formed by the first side plate 51, the second side plate 52, the first casing 20 and the second casing 21 is smooth, the connection surfaces 183 are in smooth transition, and the modeling effect is improved.

The adjusting part of the hair salon in this application can realize the continuous distance adjusting process between the first connecting piece 9 and the second connecting piece 16 by arranging the screw rod 18 and the nut 4, and further realize the stepless adjustment of the distance between the first shell 20 and the second shell 21.

The first guide holder 3 and the second guide holder 6, the first side plate 51 and the second side plate 52, the first oblong hole 32 and the second oblong hole, the first snap ring 15 and the second snap ring 17, the first connecting plate 9 and the second connecting plate 16, the first aluminum plate 8 and the second aluminum plate 19, the first housing 20 and the second housing 21, the first sliding groove 91 and the second sliding groove 161, and the "first" and "second" in the first elastic member and the second elastic member are only used for distinguishing the difference of the positions and are not sequentially distinguished.

In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The utility model provides an arbitrary compound mode of all embodiments all is in this utility model's a protection scope, does not do here and gives unnecessary details.

The above describes the hair clipper provided by the present invention in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the scope of the appended claims.

Claims (10)

1. A hair dresser, comprising: a first housing (20), a second housing (21) and an adjustment assembly, the first housing (20) and the second housing (21) being for heating hair;

the adjusting assembly comprises an adjusting part, a first connecting plate (9) and a second connecting plate (16), the first connecting plate (9) is connected with the first shell (20), and the second connecting plate (16) is connected with the second shell (21);

the first connecting plate (9) and the second connecting plate (16) are both connected to the adjustment portion and movably arranged relative to the adjustment portion, and when the adjustment portion is rotated, the first connecting plate (9) and the second connecting plate (16) approach or move away from each other.

2. The hair saller according to claim 1, wherein said adjusting portion comprises a screw (18) at least partially provided with an external thread, a nut (4) threadedly coupled with said screw (18), both ends of said nut (4) being symmetrically provided with protruding shafts (41) perpendicular to a direction of said screw (18);

the first connecting plate (9) is provided with a first sliding groove (91), and the second connecting plate (16) is provided with a second sliding groove (161); the protruding shaft (41) penetrates through the first sliding groove (91) and the second sliding groove (161) and is movably arranged along the first sliding groove (91) and the second sliding groove (161); and the first connecting plate (9) and the second connecting plate (16) are respectively arranged at two opposite sides of the nut (4).

3. The hair dresser according to claim 2, wherein the first slide groove (91) and the second slide groove (161) are both disposed obliquely with respect to an axial direction of the screw (18), and the first slide groove (91) and the second slide groove (161) are mirror-symmetrical with respect to a center plane of the screw (18), so that the first connecting plate (9) and the second connecting plate (16) are relatively close to or far from each other when the nut (4) slides within the first slide groove (91) and the second slide groove (161).

4. The hair dresser according to claim 3, wherein at least one of the first slide groove (91) and the second slide groove (161) penetrates a side edge of the first connecting plate (9) or the second connecting plate (16).

5. The hair saller according to claim 2, wherein said screw (18) is peripherally rotatably sleeved with a first guide seat (3) and a second guide seat (6), said nut (4) being located between said first guide seat (3) and said second guide seat (6);

the hairdressing device also comprises a first side plate (51) and a second side plate (52), wherein the first side plate (51) and the second side plate (52) are respectively connected to two opposite sides of the first guide holder (3) and the second guide holder (6), and the distance between the first side plate (51) and the second side plate (52) is adjustable;

the first side plate (51) and the second side plate (52) are both located in a space surrounded by the first shell (20) and the second shell (21), and the outer side of the first side plate (51) and the outer side of the second side plate (52) are both abutted against the inner side of the first shell (20) and the inner side of the second shell (21) so as to seal a gap between the first shell (20) and the second shell (21).

6. The hair dresser according to claim 5, wherein the first guide holder (3) and the second guide holder (6) are each provided with a first oblong hole (32) for mounting the first side plate (51) and a second oblong hole for mounting the second side plate (52); the first side plate (51) and the second side plate (52) are movably arranged in a direction perpendicular to the moving direction of the first connecting plate (9).

7. The hair saller according to claim 6, characterized by further comprising a first elastic member for pushing said first side plate (51) into abutment with said first case (20), said second case (21), and a second elastic member for pushing said second side plate (52) into abutment with said first case (20), said second case (21).

8. The hair saller of claim 7, characterized in that each of said first side plate (51) and said second side plate (52) has a width greater than the width of the largest gap between said first casing (20) and said second casing (21).

9. The hair clipper according to claim 5, characterized in that the first casing (20) and the second casing (21) are both columnar, and the first casing (20) and the second casing (21) are semicircular in cross section, and the outer side faces of the first side plate (51) and the second side plate (52) are both arc faces protruding outward.

10. The hair clipper according to any one of claims 2 to 9, characterized in that a head cover (1) is fixedly connected to one end of the screw (18), a shift position spring (13) is sleeved on the other end of the screw (18), and the screw (18) extending into the shift position spring (13) is provided with a plane contacting with the shift position spring (13).

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