CN215318834U

CN215318834U - Cutter head pitch adjusting mechanism of electric hair cutter

Info

Publication number: CN215318834U
Application number: CN202121857426.0U
Authority: CN
Inventors: 李磊
Original assignee: Wuhan Shenbao Pet Product Co ltd
Current assignee: Wuhan Shenbao Pet Product Co ltd
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2021-12-28
Anticipated expiration: 2031-08-10

Abstract

The utility model discloses a cutter head pitch adjusting mechanism of an electric hair cutter, which comprises a cutter head assembly, wherein the cutter head assembly comprises a fixed cutter blade, a movable cutter holder, a fixed cutter holder, a spring seat and a deflector rod; an accommodating cavity is formed between the rear end of the fixed cutter frame and the rear end of the fixed blade in a matched manner, a longitudinally extending guide groove is formed in the upper surface of the fixed cutter frame, and the fixed cutter frame is further provided with an arc-shaped through hole; the lower surface of the spring seat is provided with a guide block and is arranged on the fixed knife rest in a sliding manner, the spring seat is provided with a pressure spring, the pressure spring is pressed against the movable knife rest and is connected and linked with the movable knife rest, and the lower surface of the spring seat is also provided with a runway groove; the swing rod is installed in the containing cavity in a fixed-point rotating mode, the linkage shaft is arranged on the upper surface of the swing rod, and the linkage shaft penetrates through the arc-shaped through hole and is placed in the runway groove. The utility model has simple and reasonable structure, and can drive the movable blade to longitudinally slide on the fixed blade by rotating the deflector rod so as to adjust the tooth pitch between the movable blade and the fixed blade, thereby being convenient for controlling the hair trimming length.

Description

Cutter head pitch adjusting mechanism of electric hair cutter

Technical Field

The utility model relates to the technical field of hair trimming equipment, in particular to a cutter head pitch adjusting mechanism of an electric hair cutter.

Background

An electric hair clipper is a common hair clipper and is commonly used for repairing hair or animal hair, and the existing electric hair clipper generally realizes the hair trimming by driving a movable blade to do transverse reciprocating motion by a motor and matching with a fixed blade; the existing electric hair clipper generally uses the purpose of adjusting the tooth pitch between the movable blade and the fixed blade to control the length of hair, the existing tooth pitch adjusting mechanism directly pushes the movable blade to slide so as to achieve the purpose of adjusting the tooth pitch through a push rod key which is arranged on the electric hair clipper body in a sliding manner, and the push rod key is mostly of a single-side design structure, so that the push rod key pushes the blade to slide in the sliding process to easily cause the inconsistent sliding distances of the transverse two sides of the movable blade, thereby influencing the trimming effect of the electric hair clipper.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provides a cutter head tooth pitch adjusting mechanism of an electric hair cutter.

In order to achieve the purpose, the utility model provides a cutter head pitch adjusting mechanism of an electric hair cutter, which comprises a cutter head assembly, wherein the cutter head assembly comprises a fixed cutter blade, a movable cutter frame, a fixed cutter frame, a spring seat and a deflector rod;

the fixed knife rest is fixedly arranged on the fixed knife blade, a mounting gap is formed between the front ends of the fixed knife blade and the fixed knife blade, the movable knife blade is fixedly arranged below the movable knife rest, and the movable knife blade and the movable knife rest are integrally arranged in the mounting gap;

an accommodating cavity is formed between the rear end of the fixed cutter frame and the rear end of the fixed cutter blade in a matched manner, a longitudinally extending guide groove is concavely arranged on the upper surface of the fixed cutter frame, and the fixed cutter frame is also provided with an arc-shaped through hole communicated with the accommodating cavity;

the lower surface of the spring seat is provided with a guide block and is embedded in the guide groove through the guide block so that the spring seat can be installed on the fixed knife rest in a sliding manner, the spring seat is provided with a pressure spring, the pressure spring is pressed against the movable knife rest and is connected and linked with the movable knife rest, and the lower surface of the spring seat is also provided with a runway groove;

the fixed-point rotating device is characterized in that the shifting lever is mounted in the containing cavity, a linkage shaft is arranged on the upper surface of the shifting lever, the linkage shaft penetrates through the arc-shaped through hole and is placed in the runway groove, the shifting lever can drive the spring seat to longitudinally slide along the guide groove through the linkage shaft in the rotating process, and meanwhile the spring seat drives the movable blade to longitudinally slide through the pressure spring so as to adjust the tooth pitch between the movable blade and the fixed blade.

Further setting the following steps: the fixed cutter frame is provided with a containing groove corresponding to the concave lower surface, the middle part of the containing groove is provided with a rotating shaft, and the shifting lever is provided with a rotating hole for the rotating shaft to pass through.

Further setting the following steps: the containing groove is an arc-shaped wall at least corresponding to one transverse side wall of the containing groove, positioning grooves are arranged on the arc-shaped wall at intervals, the shifting lever is correspondingly provided with arc-shaped ribs matched with the arc-shaped wall, and at least one positioning bulge matched with the positioning grooves is arranged on each arc-shaped rib.

Further setting the following steps: one end of the arc-shaped rib is directly connected with the shifting lever, and the other end of the arc-shaped rib is connected with the shifting lever through the S-shaped rib.

Further setting the following steps: and a stop block used for limiting the front of the spring seat is arranged in the longitudinal front of the fixed cutter frame corresponding to the spring seat.

Compared with the prior art, the hair clipping device has a simple and reasonable structure, the deflector rod is rotated to drive the spring seat to longitudinally slide along the guide groove through the linkage shaft, the spring seat is linked with the movable knife rest and the movable knife blade to move through the pressure spring in the sliding process so as to adjust the tooth pitch between the movable knife blade and the movable knife blade, so that the hair clipping length is controlled, the movable knife blade moves more reliably and stably, and meanwhile, the pressure spring can act on the movable knife rest to enable the movable knife blade to be always attached to the fixed knife blade in the moving process, so that the matching effect of the movable knife blade and the fixed knife blade can be improved; moreover, the driving lever is clamped into the positioning groove corresponding to the arc-shaped wall through the positioning bulge on the arc-shaped rib in the rotating process to realize the locking of the corresponding tooth pitch, so that the stable work of the electric hair cutter is ensured.

Drawings

FIG. 1 is a perspective view of an electric hair clipper of the present invention;

FIG. 2 is a schematic view of a cutter head assembly;

FIG. 3 is a perspective view of a stationary blade;

FIG. 4 is a perspective view of the shift lever;

fig. 5 is a perspective view of a spring seat.

The following reference numerals are marked thereon in conjunction with the accompanying drawings:

100. a cutter head assembly; 1. fixing a blade; 2. a fixed tool rest; 21. a containing groove; 211. an arcuate wall; 212. positioning a groove; 22. an arc-shaped through hole; 23. a rotating shaft; 24. a stopper; 25. a guide groove; 3. a movable blade; 4. a movable knife rest; 41. a linkage groove; 5. a deflector rod; 51. a linkage shaft; 52. hole turning; 53. arc-shaped ribs; 531. positioning the projection; 54. s-shaped ribs; 6. a spring seat; 61. a guide block; 62. a runway groove; 7. a pressure spring; 200. a housing; 300. a drive assembly; 400. a power supply component; 500. an eccentric drive member; 600. a control panel assembly.

Detailed Description

An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.

Fig. 1 and 2 show a cutter head pitch adjusting mechanism of an electric hair clipper of the present invention, which includes a housing 200, a driving part 300, a power supply module 400, and a cutter head module 100; the cutter head assembly 100 is mounted at the front end of the machine shell 200, the cutter head assembly 100 comprises a fixed blade 1, a fixed cutter frame 2, a movable blade 3 and a movable cutter frame 4, the fixed cutter frame 2 is fixedly mounted on the fixed blade 1, a mounting gap is formed between the front end of the fixed cutter frame 2 and the front end of the fixed blade 1, the movable blade 3 is fixedly mounted below the movable cutter frame 4, the movable blade 3 and the movable cutter frame 4 can be integrally mounted in the mounting gap between the fixed blade 1 and the fixed cutter frame 2 in a transverse sliding manner, and the movable blade 3 and the movable cutter frame 4 can transversely directionally translate along the mounting gap under the constraint of the mounting gap; the driving component 300 and the power supply component 400 are both arranged in the machine shell 200, the power supply component 400 is connected with the driving component 300 to provide electric power required by the work of the driving component 300, the output end of the driving component 300 drives the moving cutter component of the cutter head component 100 to move through the eccentric transmission component 500, correspondingly, the moving cutter frame 4 is provided with a linkage groove 41, the eccentric transmission component 500 connected with the driving component 300 is arranged in the linkage groove 41, and the eccentric linkage component rotates under the action of the driving component 300 to collide with the two transverse side walls of the linkage groove 41 of the moving cutter frame 4 so as to realize the transverse reciprocating motion of the moving cutter frame 4; the control board assembly 600 is used to control the on/off of the circuit between the power module 400 and the driving unit 300 and the output power of the driving unit 300.

In the above scheme, as shown in fig. 2, the cutter head assembly further includes a shift lever 5, a spring seat 6 and a pressure spring 7, and an accommodating cavity is formed between the rear end of the fixed blade 1 and the rear end of the fixed blade holder 2 in a matching manner; the spring seat 6 is arranged on the upper surface of the fixed knife rest 2 and can longitudinally slide linearly, the spring seat 6 is provided with a pressure spring 7, the pressure spring 7 is pressed on the movable knife rest 4 and is connected and linked with the movable knife rest 4, and the movable knife blade 3 can be attached to the plane of the fixed knife blade 1 through the pressing action force of the pressure spring 7 so as to ensure the trimming effect of the knife head component; the deflector rod 5 is rotatably arranged in the containing cavity at a fixed point, and the deflector rod 5 can be linked with the spring seat 6 to move longitudinally in the rotating process, so that the movable blade 3 moves linearly longitudinally to adjust the tooth pitch between the movable blade 3 and the fixed blade 1, and the aim of controlling the hair trimming length is fulfilled.

Specifically, as shown in fig. 3, 4 and 5, the lower surface of the fixed cutter holder 2 is recessed upwards to form an accommodating groove 21, the accommodating groove 21 is matched with the upper surface of the fixed cutter blade 1 to form an accommodating cavity, the middle part of the fixed cutter blade 1 corresponding to the accommodating groove 21 is provided with a rotating shaft 23, one side of the fixed cutter blade 1 corresponding to the rotating shaft 23 is provided with a through arc-shaped through hole 22, the upper surface of the fixed cutter holder 2 is provided with a longitudinally extending guide groove 25, the lower surface of the spring seat 6 is provided with a guide block 61 matched with the guide groove 25, the guide block 61 is matched with the guide groove 25 to restrict the longitudinal linear motion of the spring seat 6, and the lower surface of the spring seat 6 is further provided with a runway groove 62 corresponding to the arc-shaped through hole 22; the deflector rod 5 is provided with a rotating hole 52 for the rotating shaft 23 to pass through, the deflector rod 5 is accommodated in the accommodating groove 21 and is sleeved on the rotating shaft 23 through the rotating hole 52 so as to realize fixed-point rotation of the deflector rod 5 in the accommodating groove 21, meanwhile, a notch is formed in the positioning groove 212 corresponding to the rear side of the fixed knife rest 2, and at least part of the deflector rod 5 extends to the outside of the fixed knife rest 2 through the notch, so that the deflector rod 5 can be conveniently stirred to rotate; one side of the upper surface of the shifting lever 5, which corresponds to the rotating hole 52, is provided with a convex linkage shaft 51, the linkage shaft 51 penetrates through the arc-shaped through hole 22 and is placed into a runway groove 62 of the spring seat 6, so that the spring seat 6 can be driven by the linkage shaft 51 to move in the rotating process of the shifting lever 5, the spring seat 6 converts the rotating motion into linear motion under the constraint of the guide groove 25, and the shape of the arc-shaped through hole 22 is matched with the motion trail of the linkage shaft 51.

In the above solution, as shown in fig. 3 and 4, at least one side wall of the accommodating groove 21 of the stationary blade holder 2 corresponding to the transverse direction thereof is an arc-shaped wall 211, a plurality of positioning grooves 212 are uniformly arranged on the arc-shaped wall 211 at intervals, an arc-shaped rib 53 adapted to the arc-shaped wall 211 is correspondingly arranged on the shift lever 5, at least one positioning protrusion 531 is arranged on the arc-shaped rib 53, and thus the shift lever 5 is placed into the positioning groove 212 through the positioning protrusion 531 in the rotating process to realize the locking of the corresponding state; preferably, one end of the arc-shaped rib 53 is directly connected to the shift lever 5, and the other end is connected to the shift lever 5 through the S-shaped rib 54, so that the arc-shaped rib 53 has better elasticity, and the positioning protrusion 531 slides along the arc-shaped wall 211 and is reliably locked into the positioning groove 212.

In the above solution, the upper surface of the fixed tool rest 2 is provided with a stopper 24 corresponding to the front of the spring seat 6, and the stopper 24 limits the maximum forward sliding distance of the spring seat 6.

The above disclosure is only an example of the present invention, but the present invention is not limited thereto, and any variations that can be made by those skilled in the art should fall within the scope of the present invention.

Claims

1. A cutter head pitch adjusting mechanism of an electric hair cutter is characterized by comprising a cutter head assembly, wherein the cutter head assembly comprises a fixed cutter blade, a movable cutter frame, a fixed cutter frame, a spring seat and a deflector rod;

2. The mechanism of claim 1, wherein the stationary blade holder has a receiving cavity corresponding to the recess of the lower surface, the receiving cavity has a rotating shaft at a middle portion thereof, and the driving lever has a rotating hole for the rotating shaft to pass through.

3. The mechanism of claim 2, wherein the receiving cavity is an arc-shaped wall corresponding to at least one lateral wall of the receiving cavity, the arc-shaped wall is provided with positioning slots at intervals, the driving lever is provided with arc-shaped ribs corresponding to the arc-shaped wall, and the arc-shaped ribs are provided with at least one positioning protrusion corresponding to the positioning slots.

4. The mechanism of claim 3, wherein the arc-shaped rib has one end directly connected to the driving lever and the other end connected to the driving lever via the S-shaped rib.

5. The mechanism of claim 1, wherein a stopper for limiting the front of the spring seat is provided at a position longitudinally forward of the spring seat of the stationary blade holder.