CN219075753U - Tool bit assembly - Google Patents

Abstract

The utility model relates to a cutter head assembly, which comprises a fixed cutter, a fixed cutter holder, a movable cutter and a movable cutter holder, wherein the fixed cutter and the movable cutter respectively form comb teeth and trimming teeth from two sides in the length direction, the movable cutter holder and a power butt joint part are arranged in the fixed cutter holder in a penetrating way, the cutter head assembly also comprises an elastic pressing part, a turnover connecting seat and a turnover resetting part, wherein the fixed cutter holder is arranged on the turnover connecting seat through a pivot from two end parts, notches are respectively formed at the two end parts of the fixed cutter, the turnover resetting part is a torsion spring respectively sleeved on the pivot, and two torsion arms of each torsion spring respectively abut against the turnover connecting seat and the fixed cutter. According to the utility model, through elastic pressing and sliding guiding butt joint of the pressing piece, the moving gap generated by the moving knife and the fixed knife in the reciprocating motion is avoided, so that the shearing efficiency and the shearing effect between the moving knife and the fixed knife are improved, and the body feeling of a user is enhanced; meanwhile, the cutter head can turn around the pivot, so that the cutter head can trim the hair at a required angle, and the practicability is high.

Description

Tool bit assembly

Technical Field

The utility model belongs to the field of hair care products, and particularly relates to a cutter head assembly.

Background

At present, the tool bit for trimming hair mainly comprises a fixed tool assembly and a movable tool assembly, wherein the fixed tool assembly comprises a fixed tool and a fixed tool seat, the movable tool assembly comprises a movable tool and a movable tool seat which are attached to the fixed tool, the movable tool and the fixed tool respectively form comb teeth and movable tool teeth from two sides of the length direction, trimming is implemented by shearing cooperation of the comb teeth and the movable tool teeth, and the tool seat is mounted on the fixed tool seat in a reciprocating mode along the length direction of the fixed tool. Therefore, the hair can be sheared only by butting the power output with the movable knife holder.

However, in practical use, the cutter head assembly has the following technical problems:

1. once the movable knife and the fixed knife generate a movement gap in the reciprocating movement, after the hair enters the gap, the shearing effect of the movable knife and the fixed knife is affected, and the user is painful due to the fact that the hair is dragged, so that the body feeling is very poor;

2. the angle formed by the cutter head is relatively fixed, and cannot form rotation adjustment, so that the requirement of wide-angle hair trimming cannot be implemented.

Disclosure of Invention

It is an object of the present utility model to overcome the deficiencies of the prior art to provide an improved cutter head assembly.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a tool bit subassembly, it includes stationary knife, stationary knife seat, move the sword, move the blade holder, wherein stationary knife and move the sword and form the broach and prune the tooth from length direction's both sides respectively, move the blade holder and wear out the setting from stationary knife seat with power butt joint part, the tool bit subassembly is still including sliding the elastic pressing spare that contradicts in order to keep moving the relative laminating stationary knife trend on moving the sword, upset connecting seat, upset reset piece, wherein stationary knife seat passes through pivot rotation from both ends and installs on the upset connecting seat, and form the notch at the both ends tip of stationary knife respectively, upset reset piece is the torsional spring of cover on the pivot respectively, two torsion arms of each torsional spring are contradicted respectively on upset connecting seat and stationary knife.

Preferably, the overturning connecting seat comprises an arm support with an open mouth, the arm support is pivoted, and two torsion arms of each torsion spring respectively abut against the arm support and the fixed knife. Thus, the hair can be trimmed at an angle required for turning, and the hair can be reset at any time.

According to one specific implementation and preferred aspect of the utility model, notches are respectively formed at the two end parts of the fixed cutter, and two torsion arms of each torsion spring respectively abut against the inner walls of the arm support and the fixed cutter; or the two torsion arms of each torsion spring are respectively abutted in the notch of the arm support and the notch of the fixed knife. The installation of the torsional spring is convenient, and the selective adjustment of the overturning angle is also convenient.

According to still another specific implementation and preferred aspect of the present utility model, the elastic pressing member includes a pressing member body abutting against the fixed blade holder, and pressing mold strips located at both sides of the pressing member body and capable of relatively sliding against the movable blade, wherein the pressing member body is formed with a avoiding groove for avoiding movement of the movable blade holder, the pressing mold strips extend along the length direction of the movable blade, and the pressing mold strips keep the movable blade elastically fitted with the fixed blade under deformation of the inner support of the pressing member body. Through the elastic pressing and sliding guide butt joint of the pressing piece, the moving gap generated by the moving knife and the fixed knife in the reciprocating motion is avoided, so that the shearing efficiency and the shearing effect between the moving knife and the fixed knife are improved, and the body feeling of a user is enhanced

Preferably, the stationary knife seat comprises a first seat body extending along the length direction of the stationary knife and a second seat body with a penetrating groove, wherein the first seat body is fixed on the stationary knife, the second seat body is in butt joint with the first seat body at the end part, the avoiding groove and the penetrating groove are communicated in a penetrating way, and the pressing piece body is abutted in the second seat body. That is, the standard of tool bit equipment is the stationary knife, more is favorable to the laminating motion shearing of stationary knife and movable knife.

According to a specific implementation and preferred aspect of the utility model, the first seat body comprises a frame plate fixed in the middle of the fixed cutter and end plates positioned at two ends of the frame plate, the movable cutter is jointed with the frame plate and moves back and forth between the two end plates, the second seat body is respectively butted with the end plates from two ends and is provided with a surrounding cavity which is closed in parallel and circumferentially relatively, the pressing part body is positioned in the surrounding cavity, and the trimming teeth emerge from two opposite sides of the surrounding cavity and are jointed on the comb teeth in a sliding manner. The components are effectively hidden and assembled, so that the movement interference caused by the falling of the hair into the surrounding cavity is reduced.

Preferably, a relatively attached movement plane is formed between the comb teeth and the trimming teeth, and the frame plate is arranged flush with the movement plane. Thus, the moving knife is more fit with the fixed knife.

Preferably, the enclosure comprises a strip-shaped cavity extending along the length direction of the fixed knife and provided with a penetrating groove on the bottom surface, and a first limiting cavity and a second limiting cavity which are positioned at two ends of the strip-shaped cavity and are bent inwards gradually on the bottom surface, wherein the bending part forms a first crease and a second crease, and the pressing part body is attached to the bottom surface of the strip-shaped cavity and is respectively abutted between the first crease and the second crease from the two ends. The pressing part body is convenient to be abutted against the fixed tool apron.

Further, the pressing part body comprises a panel and two side plates which are positioned on two sides of the panel and gradually stretch outwards, wherein the avoiding groove is formed in the panel and/or the side plates, when the pressing part body is abutted against the strip-shaped cavity from the panel, the side plates stretch relatively and drive the pressing mould strip to be pressed on the movable knife.

According to a further specific and preferred aspect of the utility model, the compression moulding is arranged with a fold outwards or inwards from the edge of the side plate remote from the panel. Therefore, the formed press-fit die strip has strong deformation resistance, and better press-fit and guiding effects are achieved.

Preferably, the press-fit die strip is bent outwards in a round angle from the edge of the side plate away from the panel; and/or the length of the pressing die strip is equal to the length of the movable knife. In this way, the contact area between the pressing die strip and the movable knife is reduced during the reciprocating motion, and the uniform pressing can be maintained, so that the probability of generating a motion gap between the movable knife and the fixed knife is greatly reduced.

Preferably, after the fixed cutter seat is installed, the outer contours of the avoidance groove and the penetration groove are aligned.

In addition, the movable cutter seat comprises a seat body extending along the length direction of the movable cutter, and a power butt joint part arranged in the middle of the seat body and butted with the power output part, wherein the power butt joint part penetrates out of the avoidance groove and is arranged in the avoidance groove in a relative sliding manner. The fitting assembly and the implementation of movement shearing of the movable knife are facilitated.

Preferably, the cutter head assembly further comprises ends respectively sleeved at the ends of the fixed cutter, wherein notches are respectively formed at the ends of the two ends of the fixed cutter, and the notches are covered and abutted on the torsion arms by the ends. Under the protection of the end, the phenomenon that the skin of a user is scratched by the fixed cutter is further avoided, and meanwhile, the torsion arm can be installed and limited, so that the overall appearance is improved, and the appearance is attractive.

Compared with the prior art, the utility model has the following advantages:

according to the utility model, through elastic pressing and sliding guiding butt joint of the pressing piece, the moving gap generated by the moving knife and the fixed knife in the reciprocating motion is avoided, so that the shearing efficiency and the shearing effect between the moving knife and the fixed knife are improved, and the body feeling of a user is enhanced; meanwhile, the cutter head can turn around the pivot, so that the cutter head can trim the hair at a required angle, and the practicability is high.

Drawings

FIG. 1 is a schematic view of a tool bit assembly of the present utility model (with the tip omitted);

FIG. 2 is an exploded view of the structure of FIG. 1;

FIG. 3 is a schematic view of the partial structure of FIG. 1;

FIG. 4 is a schematic front view of FIG. 3;

in the accompanying drawings: 1. a fixed cutter; 10. comb teeth; 10a, a notch;

2. a fixed cutter holder; 21. a first base; 210. a frame plate; 211. an end plate; 22. a second seat body; 2a, penetrating out of the groove; q, enclosing a cavity; q1, a strip-shaped cavity; q2, a first limiting cavity; q3, a second limiting cavity; h1, first folds; h2, second folds;

3. a movable knife; 30. trimming teeth;

4. a movable knife holder; 40. a seat body; 41. a power docking portion;

5. an elastic pressing piece; 50. a pressing member body; 500. an avoidance groove; 50a, a panel; 50b, side plates; 51. pressing the die strip;

6. turning over the connecting seat; 60. arm support;

7. turning over the reset piece;

8. an end head; z, pivot.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In this application, unless explicitly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature. It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

As shown in fig. 1 and 2, the cutter head assembly of the present embodiment includes a fixed cutter 1, a fixed cutter holder 2, a movable cutter 3, a movable cutter holder 4, an elastic pressing member 5, a flip connecting seat 6, a flip reset member 7, and a tip 8.

Specifically, the stationary blade 1 and the movable blade 3 form comb teeth 10 and trimming teeth 30 from both sides in the longitudinal direction, respectively, that is, the comb teeth 10 and the trimming teeth 30 perform the hair trimming with respect to the shearing movement.

The elastic pressing piece 5 is arranged between the fixed cutter seat 2 and the movable cutter 3, and the elastic pressing piece 5 comprises a pressing piece body 50 which is abutted against the fixed cutter seat 2, and pressing die strips 51 which are positioned on two sides of the pressing piece body 50 and can be abutted against the movable cutter 3 in a relative sliding manner.

In this example, the stationary blade holder 2 includes a first holder 21 extending along the length direction of the stationary blade 1, and a second holder 22 having a through slot 2a, wherein the first holder 21 is fixed to the stationary blade 1, and the second holder 22 is abutted with the first holder 21 at an end portion.

The first housing 21 includes a frame plate 210 fixed to the middle of the stationary blade 1, end plates 211 positioned at both ends of the frame plate 210, and the movable blade 3 is fitted to the frame plate 210 and reciprocates between the two end plates 210.

The second seat body 22 is rotatably installed on the turnover connecting seat 6 from two end parts through a pivot z, and notches 10a are respectively formed at two end parts of the fixed knife 1, the turnover reset piece 7 is a torsion spring respectively sleeved on the pivot z, and two torsion arms of each torsion spring respectively abut against the turnover connecting seat 6 and the fixed knife 1.

The turnover connecting seat 6 comprises a cantilever crane 60 with an open mouth, a pivot z is rotatably arranged on the cantilever crane 60, and two torsion arms of each torsion spring respectively abut against the cantilever crane 60 and the notch 10a of the fixed knife 1. The installation of the torsional spring is convenient, and the selective adjustment of the overturning angle is also convenient.

At the same time, the second seat 22 is respectively butted with the end plate 211 from two ends and is parallel with the peripheral cavity q which is circumferentially and oppositely closed.

The enclosing cavity q comprises a strip-shaped cavity q1 extending along the length direction of the fixed cutter 1 and provided with a penetrating groove 2a on the bottom surface, and a first limit cavity q2 and a second limit cavity q3 which are positioned at two ends of the strip-shaped cavity q1 and are bent inwards gradually, wherein the bending part forms a first fold h1 and a second fold h2.

The elastic pressing piece 5 is positioned in the surrounding cavity q, and the trimming teeth 30 emerge from two opposite sides of the surrounding cavity q and are slidingly attached to the comb teeth 10

Specifically, the pressing member body 50 is formed with an avoiding groove 500 for avoiding the movement of the movable cutter holder 4, the pressing mold strip 51 extends along the length direction of the movable cutter 3, and the pressing mold strip 51 keeps the movable cutter 3 elastically attached to the fixed cutter 1. Here, it should be noted that the magnitude of the elastic interference force provided by the elastic pressing member 5 is determined by the distance between the second seat 22 and the frame plate 210, and the smaller the distance is, the larger the elastic interference force is provided.

The pressing member body 50 is attached to the bottom surface of the strip-shaped cavity q1 and respectively abuts against the first fold h1 and the second fold h2 from two ends.

The pressing member body 50 comprises a panel 50a and two side plates 50b located at two sides of the panel 50a and gradually expanding outwards, wherein the avoiding groove 500 is formed on the panel 50a and the side plates 50b, and when the pressing member body 50 is abutted against the strip-shaped cavity q1 from the panel 50a, the side plates 50b relatively expand and drive the pressing mold strips 51 to press on the movable knife 3.

The press-fit strips 51 are bent outwardly from the edges of the side plates 50b away from the face plate 50 a. Therefore, the formed press-fit die strip has strong deformation resistance, and better press-fit and guiding effects are achieved.

The length of the press mold strip 51 is equal to the length of the movable blade 3. In this way, the contact area between the pressing die strip and the movable knife is reduced during the reciprocating motion, and the uniform pressing can be maintained, so that the probability of generating a motion gap between the movable knife and the fixed knife is greatly reduced.

After the first and second housings 21 and 22 are installed, the escape grooves 500 are aligned with the outer contours of the pass-through grooves 2 a.

The movable blade seat 4 comprises a seat body 40 extending along the length direction of the movable blade 3, and a power docking part 41 arranged in the middle of the seat body 40 and docked with the power output part, wherein the power docking part 41 penetrates out of the avoidance groove 500 and the penetration groove 2a and is arranged in the avoidance groove 500 and the penetration groove 2a in a relatively sliding manner. The fitting assembly and the implementation of movement shearing of the movable knife are facilitated.

The two ends 8 are respectively sleeved at the end parts of the fixed knife 1, wherein the ends 8 wrap the notch 10a and are abutted against the torsion arm. Under the protection of the end, the phenomenon that the skin of a user is scratched by the fixed cutter is further avoided, and meanwhile, the torsion arm can be installed and limited, so that the overall appearance is improved, and the appearance is attractive.

In summary, the present embodiment has the following advantages:

1. the elastic pressing and sliding guiding butt joint of the pressing piece can avoid the movement gap generated by the movable knife and the fixed knife in the reciprocating movement, so as to improve the shearing efficiency and the shearing effect between the movable knife and the fixed knife, thereby enhancing the body feeling of a user; meanwhile, the cutter head can turn around the pivot, so that the cutter head can trim the hair at a required angle, and the practicability is high;

2. the adopted fillet is turned outwards to form the pressing edge strips, the length of the pressing edge strips is equal to that of the movable knife, the contact area between the pressing edge strips and the movable knife is reduced in reciprocating motion, uniform pressing can be kept, the probability of generating a motion gap between the movable knife and the fixed knife is greatly reduced, meanwhile, the elastic interference is kept by combining the outward supporting type opening of the body, the motion gap between the movable knife and the fixed knife is avoided, and the distance between the second seat body and the frame plate can be adjusted and installed according to the motion requirement by the elastic interference force;

3. the adopted cutter head assembly takes the comb teeth of the fixed cutter as a reference, so that the assembly of the movable cutter and the fixed cutter is convenient, the formed attaching and shearing effects are optimal, and in addition, the structure is simple, and excessive or complex positioning means are not needed;

4. under the protection of the end head, the phenomenon that the skin of a user is scratched by the fixed cutter is further avoided, meanwhile, the torsion arm can be installed and limited, and the overall appearance and the appearance are improved; in addition, under the design of the notch, the stable installation and the turnover reset implementation of the torsion spring are more facilitated.

The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the present utility model and to implement the same, but are not intended to limit the scope of the present utility model, and all equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.

Claims (10)

1. The utility model provides a tool bit subassembly, its includes stationary knife, stationary knife seat, moves the sword, moves the blade holder, wherein stationary knife and move the sword and form broach and pruning tooth from length direction's both sides respectively, move the blade holder with power docking part certainly wear out the setting in the stationary knife seat, its characterized in that: the tool bit assembly further comprises an elastic pressing part, a turnover connecting seat and a turnover resetting part, wherein the elastic pressing part is in sliding contact with the movable tool to keep the movable tool relatively attached to the movement trend of the fixed tool, the fixed tool seat is installed on the turnover connecting seat through pivot rotation from two end parts, the turnover resetting part is a torsion spring respectively sleeved on the pivot, and two torsion arms of each torsion spring are respectively in contact with the turnover connecting seat and the fixed tool.

2. The tool bit assembly of claim 1, wherein: the overturning connecting seat comprises an arm support with an opening, the pivot is rotatably arranged on the arm support, and two torsion arms of each torsion spring are respectively abutted against the arm support and the fixed knife.

3. The tool bit assembly of claim 2, wherein: notches are formed at the end parts of the two ends of the fixed cutter respectively, and two torsion arms of each torsion spring respectively abut against the inner walls of the arm support and the fixed cutter; or the two torsion arms of each torsion spring are respectively abutted in the arm support and the notch of the fixed knife.

4. The tool bit assembly of claim 1, wherein: the elastic pressing piece comprises a pressing piece body which is abutted against the fixed cutter seat, pressing die strips which are located on two sides of the pressing piece body and can be abutted against the movable cutter in a relative sliding manner, wherein an avoidance groove which is formed on the pressing piece body and used for avoiding movement of the movable cutter seat, the pressing die strips extend along the length direction of the movable cutter, and the pressing die strips are kept under deformation of the inner support of the pressing piece body, and the movable cutter and the fixed cutter are elastically attached.

5. The tool bit assembly of claim 4, wherein: the fixed cutter seat comprises a first seat body and a second seat body, wherein the first seat body extends along the length direction of the fixed cutter, the second seat body is provided with a penetrating groove, the first seat body is fixed on the fixed cutter, the second seat body is in butt joint with the first seat body at the end part, the avoiding groove and the penetrating groove are communicated in a penetrating mode, and the pressing piece body is abutted to the second seat body.

6. The tool bit assembly of claim 5, wherein: the first seat body including fixing the frame plate at fixed knife middle part, be located the end plate at frame plate both ends, move the sword laminating the frame plate and two reciprocating motion between the end plate, the second seat body from both ends respectively with the end plate butt joint, parallel circumference relatively closed enclose the chamber, pressfitting spare be located enclose the intracavity, prune the tooth from enclose the chamber opposite both sides and emit and laminate slidingly on the broach.

7. The tool bit assembly of claim 6, wherein: the comb teeth and the trimming teeth form a relatively attached movement plane, and the frame plate and the movement plane are arranged in a flush manner.

8. The tool bit assembly of claim 6, wherein: the utility model provides a pressfitting spare body include the panel, be located the panel both sides and progressively outwards open two curb plates, wherein dodge the groove setting and be in the panel and/or on the curb plate, enclose the chamber including set up on the bottom surface along stationary knife length direction extension and wear out the bar chamber in groove, be located the both ends in bar chamber and the first spacing chamber and the second spacing chamber of the gradual inwards buckling in bottom surface, pressfitting spare body certainly when the panel is contradicted in the bar chamber, the curb plate is opened relatively and is driven pressfitting mould strip pressfitting is in move on the sword.

9. The tool bit assembly of claim 8, wherein: the pressing die strip is bent outwards or inwards from the edge of the side plate far away from the panel; and/or the length of the pressing die strip is equal to the length of the movable knife; and/or, after the fixed cutter seat is installed, the outer contours of the avoidance groove and the penetration groove are aligned.

10. The tool bit assembly of claim 1, wherein: the tool bit assembly further comprises ends respectively sleeved at the ends of the fixed tool, wherein notches are respectively formed at the ends of the two ends of the fixed tool, and the notches are coated and abutted by the ends on the torsion arms.

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