Electric hair cutter head moving left and right in parallel and electric hair cutter

Abstract

The utility model relates to an electric hair cutter head and an electric hair cutter capable of moving in parallel left and right, the electric hair cutter head comprises a machine body and a cutter head connected with the machine body, the cutter head comprises a fixed blade and a movable blade assembly connected with the fixed blade, the movable blade assembly comprises a movable blade seat and a movable blade fixed on the movable blade seat, and a guide rail is further arranged on the movable blade assembly. The movable blade is arranged between the guide rail and the movable blade holder, a sliding groove corresponding to the guide rail is formed in the fixed blade, the fixed blade is fixedly arranged on the machine body, the movable blade assembly is arranged in the machine body, and the driving assembly is arranged in the machine body and drives the movable blade holder to move in parallel so as to drive the movable blade to move in parallel. When the movable blade seat moves in parallel, the movable blade and the guide rail are driven to move in parallel, and the guide rail moves left and right in the sliding groove to enable the movable blade and the fixed blade to move alternately to cut hair. The driving shaft rotates to drive the movable blade seat to move left and right in parallel, then the guide rail moves in the sliding groove, the movable blade moves left and right in parallel relative to the fixed blade, and the hair cutting effect is better.

Description

Technical Field

[0001] The utility model relates to the field of electric hair clipper heads and electric hair clippers, in particular to electric hair clipper heads and electric hair clippers capable of left-right parallel movement. Background Art

[0002] Electric hair clippers are commonly used tools for trimming hair or animal hair, and are well known and common. The structure of the electric hair clippers mainly includes a shell, in which a motor and a power supply component are arranged, and a blade component driven by a motor is arranged at the front end of the shell. For ease of use, most common electric hair clippers on the market are equipped with a blade adjustment mechanism, which is used to adjust the position of the moving blade to achieve the effect of trimming hair of different lengths. However, the existing electric hair clippers may have non-parallel movement of the moving blade during adjustment, resulting in different extension distances on both sides, which affects the haircut effect, makes a lot of noise, and makes the haircut effect worse; at the same time, there is a time delay between the moving blade and the moving blade seat when the moving blade moves, which also affects the haircut effect.

[0003] Chinese patent announcement number CN206913197U discloses a structure capable of realizing parallel movement of a cutter head, and is designed in the field of hair clipper technology; it comprises a movable cutter group and a fixed cutter group, the movable cutter group comprises a movable cutter frame and a movable blade, the movable blade is fixed below the movable cutter frame, and at least one pair of positioning pins is arranged below the fixed blade; the fixed cutter group comprises a fixed cutter frame, a fixed blade, a cutter head spring and a parallel bracket, the fixed blade and the parallel bracket are both fixed on the fixed cutter frame, the movable cutter group is arranged above the fixed blade and the parallel bracket, one end of the cutter head spring is fixed on the fixed cutter frame, and the other end of the cutter head spring is pressed on the movable cutter frame; a strip-shaped limiting through hole is arranged on the parallel bracket corresponding to the position of the positioning pin, and the positioning pin is inserted into the strip-shaped limiting through hole; the movable cutter group reciprocates above the fixed blade and the parallel bracket by being limited by the positioning pin and the limiting through hole; the beneficial effect of the utility model is that the movable cutter group realizes parallel movement on the fixed cutter group, and achieves a better shearing effect. Although this patent realizes the parallel movement of the blade, it is the movement of the parallel tool holder that drives the parallel movement of the blade, but it does not explain how the parallel tool holder moves in parallel, and there may be a situation where the parallel movement of the tool holder cannot be guaranteed.

[0004] Chinese patent announcement number CN214213886U relates to a movable blade adjustment mechanism of an electric hair clipper, comprising a fixed blade holder, a movable blade holder, a movable blade and a fixed shaft, wherein the movable blade is fixed on the movable blade holder, the fixed shaft is arranged on the fixed blade holder, an adjustment wrench is rotatably connected on the fixed shaft, a limit track is arranged in the fixed blade holder, the adjustment wrench is connected to a cutter head spring seat through a linkage shaft, which can perform transverse reciprocating motion in the limit track as the adjustment wrench rotates, and a cutter head compression spring is arranged on the cutter head spring seat, one end of which is connected to the cutter head spring seat, and the other end is connected to the movable blade holder. This structure is simple to operate. The movable blade holder and the movable blade in the patent are connected by only one set of perforations, which easily causes a certain delay effect between the movable blade holder and the movable blade when the movable blade holder moves, affecting the use of the electric hair clipper. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the existing electric hair clippers may have non-parallel movement of the moving blades during adjustment, resulting in different extension distances on both sides, which affects the haircut effect, makes a lot of noise, and makes the haircut effect worse; at the same time, there is a time delay between the moving blade and the moving blade holder when the moving blade moves, which also affects the haircut effect. In view of the above defects of the prior art, an electric hair clipper head and an electric hair clipper with left and right parallel movement are provided.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] An electric hair clipper head capable of left-right parallel movement is constructed, comprising a fixed blade and a movable blade assembly connected to the fixed blade, the movable blade assembly comprising a movable blade holder and a movable blade fixed on the movable blade holder, the movable blade assembly is further provided with a guide rail, the movable blade is placed between the guide rail and the movable blade holder, when the movable blade holder moves in parallel, the movable blade and the guide rail are driven to move in parallel, the fixed blade is provided with a slide groove corresponding to the guide rail, the guide rail moves in parallel in the slide groove so that the movable blade and the fixed blade move in staggered parallel motion to cut hair.

[0008] Preferably, at least one group of connecting columns is provided on the movable knife seat, the movable blade is provided with the same number of through holes corresponding to the connecting columns, the movable blade is connected to the movable knife seat through the through holes, the guide rail is provided with the same number of fixing holes corresponding to the connecting columns, the connecting columns are connected to the fixing holes so that the guide rail is connected and fixed to the movable knife seat.

[0009] Preferably, the end of the connecting column is flush with the side of the guide rail facing the slide groove, or there is a gap between the end of the connecting column and the inner wall of the slide groove.

[0010] Preferably, at least one group of limit blocks is provided on the movable blade seat, the same number of limit holes are provided on the movable blade corresponding to the limit blocks, the size of the limit blocks is the same as the size of the limit holes, the limit blocks pass through the limit holes, and an accommodating cavity is provided on the guide rail corresponding to the limit blocks, the bottom of the accommodating cavity contacts the end of the limit block, so that when the limit holes move in parallel, the movable blade and the guide rail are driven to move in parallel synchronously.

[0011] Preferably, the guide rail width is not greater than the slide groove width, a plurality of protrusions are provided on both sides of the guide rail, hollow grooves are provided between the protrusions, and the maximum distance between the protrusions on both sides of the guide rail is the same as the slide groove width.

[0012] Preferably, the cutter head further comprises a balancing assembly, which generates a thrust force on the movable blade assembly toward the fixed blade to balance the left-right parallel movement of the movable blade, so that the movable blade contacts the fixed blade.

[0013] An electric hair clipper including an electric hair clipper head that moves left and right in parallel as described above is constructed, comprising a body, wherein the fixed blade is fixedly arranged on the body, and the movable blade assembly is arranged in the body. The electric hair clipper also comprises a driving assembly arranged in the body, and the driving assembly drives the movable blade holder to move in parallel, thereby driving the movable blade to move in parallel.

[0014] Preferably, the driving assembly includes a motor and an eccentric wheel arranged on the motor shaft, which drives the eccentric wheel to rotate when the motor rotates. A driving shaft is arranged on the eccentric wheel, and the driving shaft and the motor shaft are staggered so that when the eccentric wheel rotates, the driving shaft rotates with the motor shaft as the center, and when the driving shaft rotates, it drives the moving knife seat to move parallel to it.

[0015] Preferably, two groups of protrusions are provided on the movable knife seat, a driven groove is provided between the two groups of protrusions, and the driving shaft is placed in the driven groove to drive the movable knife seat to rotate. A control panel and a battery connected to the motor are also provided in the fuselage. A display screen displaying the battery power and a charging port for charging the battery are provided on the fuselage.

[0016] The beneficial effect of the utility model is that the driving shaft rotates in a circular motion to drive the movable blade holder to move parallel to the left and right, and then the guide rail moves in the slide groove, so that the movable blade moves parallel to the left and right relative to the fixed blade, and the hair cutting effect is better. The spring generates a thrust toward the fixed blade on the movable blade assembly, so that the distance between the movable blade and the fixed blade remains unchanged. At the same time, protrusions are provided on both sides of the guide rail to contact the slide groove to reduce the friction between the guide rail and the slide groove. The end of the connecting column is flush with the surface of the guide rail or there is a gap between the end of the connecting column and the slide groove to avoid contact between the connecting column and the slide groove. At the same time, a limit block is provided to keep the movable blade and the guide rail and the movable blade holder in synchronous motion, so that the hair cutting effect is better, the noise is lower, and it is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of an electric hair clipper according to a preferred embodiment of the utility model;

[0019] Figure 2 It is a schematic cross-sectional structure diagram of an electric hair clipper of a preferred embodiment of the utility model;

[0020] Figure 3 The electric hair clipper of the preferred embodiment of the utility model Figure 3 A is an enlarged schematic diagram;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the connection between the blade assembly and the motor of the electric hair clipper in a preferred embodiment of the utility model;

[0022] Figure 5 This is a schematic diagram of the exploded structure of the connection between the blade assembly and the motor of the electric hair clipper in a preferred embodiment of the utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the motor and eccentric wheel of the electric hair clipper in a preferred embodiment of the utility model;

[0024] Figure 7 It is a three-dimensional structural schematic diagram of the upper blade seat of the electric hair clipper in a preferred embodiment of the utility model;

[0025] Figure 8 This is a schematic diagram of the three-dimensional structure of the upper blade of the electric hair clipper in a preferred embodiment of the utility model;

[0026] Fig. 9 It is a three-dimensional structural schematic diagram of the guide rail of the electric hair clipper in a preferred embodiment of the utility model;

[0027] Fig.10 The figure is a three-dimensional structural diagram of the upper blade assembly of the electric hair clipper according to the preferred embodiment of the utility model. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the following will be described clearly and completely in combination with the technical solution in the embodiments of the utility model. Obviously, the described embodiments are partial embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0029] The utility model is a preferred embodiment of an electric hair clipper head and an electric hair clipper with left-right parallel movement; Figure 1-2 As shown, the body 10 is composed of a body upper cover 10 and a body lower cover 11 which are detachably connected. One end of the body is connected to a blade assembly 8. The body is divided into two groups of areas. A motor 7 is provided in one group. An eccentric wheel 70 is connected to the end of the motor. The eccentric wheel is driven to rotate by the rotation of the motor, so that the blade assembly 8 performs a hair cutting operation. A control panel 5 and a battery 6 connected to the control panel are also provided in the body. A button 2 connected to the control panel and a display screen 3 for displaying the power of the electric hair clipper are provided on the outer surface of the body. The electric hair clipper is turned on or off and the working speed of the electric hair clipper is adjusted by the button. The display screen is convenient for checking the remaining power of the battery. A charging port 4 for charging the battery is also provided at the rear of the body, which is convenient for charging the battery 6.

[0030] Specifically, Figure 3-5 As shown, the blade assembly 8 includes a lower blade 80 connected to the lower cover of the body, and an upper blade assembly 81 arranged in the body. The lower blade is fixedly arranged on the lower cover of the body. The upper blade assembly 81 drives the eccentric wheel to rotate through the rotation of the motor, thereby driving the upper blade assembly to slide parallel to the left and right, so as to realize the cutting operation of the hair through the upper blade assembly and the lower blade assembly.

[0031] Furthermore, if Figure 3-5 As shown, the upper blade assembly 81 includes an upper blade seat 810, and a guide rail 812 connected to the upper blade seat 810, an upper blade 811 is arranged between the upper blade seat and the guide rail, and a slide groove 800 is arranged on the lower blade corresponding to the guide rail, and the guide rail is placed in the slide groove and can slide in parallel to the left and right in the slide groove. The upper blade is fixed by the upper blade seat and the guide rail, and when the eccentric wheel rotates, the upper blade is driven to slide in parallel to the left and right, so that the upper blade slides in parallel to the lower blade to cut the hair. In order to prevent the upper blade seat assembly from shaking up and down, the blade assembly also includes a balance spring 82, one end of which is fixed in the body, and the other end generates a thrust toward the lower blade on the upper blade assembly, so that the upper blade assembly keeps in contact with the lower blade, thereby balancing the left and right movement of the moving blade and improving the hair cutting effect.

[0032] Furthermore, if Figure 4-10As shown, the eccentric wheel 70 is arranged on the motor shaft and rotates with the rotation of the motor shaft. A driving shaft 700 is arranged at one end of the eccentric wheel away from the motor. The driving shaft and the motor shaft are arranged in a staggered manner, so that when the motor drives the eccentric wheel to rotate, the motion trajectory of the driving shaft is in the shape of a virtual circle. Two groups of protrusions 8100 are arranged on the upper knife seat 810, and a driven groove 8101 is arranged between the two protrusions. The driving shaft 700 is placed in the driven groove, and when the driving wheel rotates, it drives the driven groove to move parallel to the left and right, and then drives the upper knife seat to move parallel to the left and right. Two groups of connecting posts 8103 are also provided on the upper blade seat 810, and two groups of through holes 8111 are provided on the upper blade 811 corresponding to the connecting posts. The through holes of the upper blade pass through the connecting posts, and the connecting posts are connected to the guide rails 812. A fixing hole is provided on the guide rail corresponding to the end of the connecting post. When the fixing hole is inserted into the connecting post, the end of the connecting post is flush with the end of the fixing hole, or the end of the connecting post does not extend out of the end of the fixing hole, that is, the end of the connecting post is flush with one side of the guide rail or slightly lower than one side of the guide rail, thereby avoiding the contact between the fixed post and the slide groove after connection to affect the sliding effect of the upper blade assembly.

[0033] Furthermore, if Figure 7-10 As shown, in order to make the upper blade 811 and the upper blade seat 810 maintain synchronous parallel movement, two groups of limit blocks 8102 are provided on the upper blade seat, and two groups of limit holes 8110 are provided on the upper blade corresponding to the limit blocks. The limit blocks pass through the limit holes, and the guide rail is provided with a receiving groove 8121 corresponding to the limit blocks. The receiving groove does not penetrate the guide rail, so that the end of the limit block contacts the bottom of the receiving groove. Therefore, under the action of the limit block, the upper blade and the guide rail move synchronously left and right in parallel with the upper blade seat, so that the hair cutting effect is better and the hair cutting noise is smaller.

[0034] Furthermore, if Figure 4-5 and Fig. 9 As shown, in order to prevent the upper blade assembly from shaking up and down, the width of the guide rail and the width of the slide groove should be basically the same, and bumps can also be set at both ends of the guide rail, and the bumps are in contact with the ends of the slide groove, but the bumps are not set on both sides of the entire guide rail, thereby reducing the contact area between the bumps and both sides of the slide groove, reducing the friction generated during sliding, and improving the sliding effect.

[0035] It should be understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. An electric hair clipper head capable of left-right parallel movement, comprising a fixed blade and a movable blade assembly connected to the fixed blade, wherein the movable blade assembly comprises a movable blade holder and a movable blade fixed on the movable blade holder, characterized in that: The movable blade assembly is also provided with a guide rail, and the movable blade is placed between the guide rail and the movable blade seat. When the movable blade seat moves in parallel, it drives the movable blade and the guide rail to move in parallel. The fixed blade is provided with a slide groove corresponding to the guide rail. The guide rail moves in parallel in the slide groove, so that the movable blade and the fixed blade move alternately to cut hair.

2. The electric hair clipper head according to claim 1, characterized in that: At least one group of connecting columns is arranged on the movable knife seat, and the movable blade is provided with the same number of through holes corresponding to the connecting columns. The movable blade is connected to the movable knife seat through the through holes, and the guide rail is provided with the same number of fixing holes corresponding to the connecting columns. The connecting columns are connected with the fixing holes so that the guide rail is connected and fixed to the movable knife seat.

3. The electric hair clipper head according to claim 2, characterized in that: The end of the connecting column is flush with the side of the guide rail facing the slide slot, or a distance is left between the end of the connecting column and the inner wall of the slide slot.

4. The electric hair clipper head according to claim 2, characterized in that: At least one group of limit blocks is arranged on the movable blade seat, and the same number of limit holes are arranged on the movable blade corresponding to the limit blocks. The size of the limit blocks is the same as the size of the limit holes. The limit blocks pass through the limit holes. An accommodating cavity is arranged on the guide rail corresponding to the limit blocks. The bottom of the accommodating cavity contacts the end of the limit block, so that the movable blade and the guide rail can move synchronously when the limit holes move.

5. The electric hair clipper head according to claim 1, characterized in that: The width of the guide rail is not greater than the width of the slide groove. A plurality of protrusions are arranged on both sides of the guide rail, and hollow grooves are arranged between the protrusions. The maximum distance between the protrusions on both sides of the guide rail is the same as the width of the slide groove.

6. The electric hair clipper head according to claim 5, characterized in that: The cutter head also includes a balancing component, which generates a thrust force on the movable blade assembly toward the fixed blade to balance the left-right parallel movement of the movable blade, so that the movable blade contacts the fixed blade.

7. An electric hair clipper comprising an electric hair clipper head capable of left-right parallel movement as claimed in any one of claims 1 to 6, comprising a body, wherein the fixed blade is fixedly arranged on the body, and the movable blade assembly is arranged in the body, and characterized in that: The electric hair clipper also includes a driving assembly arranged in the body, and the driving assembly drives the movable blade holder to move in parallel, thereby driving the movable blade to move in parallel.

8. The electric hair clipper according to claim 7, characterized in that: The driving assembly includes a motor and an eccentric wheel arranged on the motor shaft. When the motor rotates, the eccentric wheel is driven to rotate. A driving shaft is arranged on the eccentric wheel. The driving shaft and the motor shaft are staggered so that when the eccentric wheel rotates, the driving shaft rotates with the motor shaft as the center. When the driving shaft rotates, it drives the movable knife seat to move parallel to it.

9. The electric hair clipper according to claim 8, characterized in that: Two groups of protrusions are arranged on the movable knife seat, a driven groove is arranged between the two groups of protrusions, and the driving shaft is placed in the driven groove to drive the movable knife seat to rotate. A control panel and a battery connected to the motor are also arranged in the fuselage. A display screen displaying the battery power and a charging port for charging the battery are arranged on the fuselage.

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