CN213918369U

CN213918369U - Torsional spring type tool bit assembly

Info

Publication number: CN213918369U
Application number: CN202022975317.0U
Authority: CN
Inventors: 刘万勇; 李冬
Original assignee: Suzhou Jiadong Hardware Products Co ltd
Current assignee: Suzhou Jiadong Hardware Products Co ltd
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-08-10
Anticipated expiration: 2030-12-07

Abstract

The utility model relates to a torsional spring formula tool bit subassembly, it includes the blade holder, move sword and stationary knife, and power device, wherein move the relative both sides of sword and stationary knife and be formed with the broach respectively, the stationary knife is fixed on the blade holder from both ends, the tool bit subassembly is still including being used for moving the sword installation move the sword frame, and keep moving the torsional spring that the sword laminating was moving the sword bottom, power device includes the power seat that is connected with the blade holder, the power part that the setting just is used for driving the drive that moves the sword frame and move sword along moving sword length direction reciprocating motion on the power seat, the torsional spring setting is on the power seat and a tip is contradicted on the power seat, another tip is contradicted on moving the sword frame. The utility model can prevent the moving knife from contacting with the skin to cause skin damage; on the other hand, due to the arrangement of the knife net, body hair directly enters a shearing area formed by the movable knife and the fixed knife through the comb teeth, and shaving can be finished by continuously keeping the movable knife attached to the fixed knife through the torsion spring.

Description

Torsional spring type tool bit assembly

Technical Field

The utility model belongs to hair care product field, concretely relates to torsional spring formula tool bit subassembly.

Background

Hair care products, such as hair clippers, which are common in real life, can conveniently shave off hairs on the surface of human skin, and are popular with many beauty-conscious women.

However, the cutter head assembly of a general shaver mainly comprises a cutter frame, a cutter mesh, a fixed cutter and a movable cutter, wherein the relative shearing motion of the fixed cutter and the movable cutter shears body hair entering a shearing area from the cutter mesh, the fixed cutter is arranged below the fixed cutter, the movable cutter is arranged above the fixed cutter, namely the movable cutter possibly contacts with human skin, so that the possibility of shearing the human skin caused by the movable cutter exists, and meanwhile, a lot of body hair cannot enter the cutter mesh and cannot be removed.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model aims at providing an improve torsional spring formula tool bit subassembly.

For solving the technical problem, the utility model discloses a following technical scheme:

a torsional spring type tool bit assembly comprises a tool apron, a movable knife, a fixed knife and a power device, wherein two opposite sides of the movable knife and the fixed knife are respectively provided with comb teeth,

the fixed knife is fixed on the knife holder from two end parts, the knife head component also comprises a movable knife rest used for installing the movable knife and a torsional spring used for keeping the movable knife attached to the bottom of the movable knife,

the power device comprises a power seat connected with the tool apron and a power component which is arranged on the power seat and used for driving the movable tool of the movable tool rest to reciprocate along the length direction of the movable tool, and the torsion spring is arranged on the power seat, one end part of the torsion spring is abutted against the power seat, and the other end part of the torsion spring is abutted against the movable tool rest.

Preferably, the movable knife rest comprises a rest body consistent with the movable knife in the length direction, a transmission module located at the bottom of the rest body and connected with the output end of the power component, and swing arms arranged at two ends of the rest body and rotatably connected with the knife holders, wherein the movable knife is mounted on the rest body, the rest body linearly reciprocates along the length direction of the rest body, and the swing arms swing in the same direction.

According to the utility model discloses a concrete implementation and preferred aspect are located the swing arm parallel arrangement at frame body both ends, and the tip is formed with the adapter sleeve under the every swing arm, is equipped with the reference column that matches with the adapter sleeve in the blade holder, and the adapter sleeve is established on the reference column and relative reference column rotates the setting. The swing arms arranged in parallel enable the swing amplitude to be the same, and therefore the stability of the linear motion of the frame body is ensured.

Preferably, the swing arm has four and two liang of correspondence settings at frame body both ends and both sides, and the blade holder corresponds the tip and is equipped with two reference columns of alignment. Further improving the stability of the movement.

Furthermore, a plurality of positioning modules which are distributed at intervals are formed on the frame body, a plurality of positioning holes matched with the positioning modules are correspondingly formed in the movable knife, the positioning modules penetrate out of the positioning holes, and the movable knife is clamped on the positioning modules. Therefore, the movable knife is very convenient to detach and mount.

According to the utility model discloses in still another concrete implementation and preferred aspect, the stationary knife sets up from both sides arch up, moves the sword and sets up from both sides undercut, forms the U type stroke spacing module that the opening faces upward inside the stationary knife, wherein sets up the microscler spacing groove that extends along stationary knife length direction on the spacing module of U type stroke, and microscler spacing groove and orientation module one-to-one set up, orientation module upper portion reciprocating motion in microscler spacing groove. Therefore, the U-shaped stroke limiting module can be matched with the power component to act, and the moving stroke of the moving knife can be accurately controlled.

According to the utility model discloses a still another concrete implementation and preferred aspect, power part is including setting up rim plate on the power seat, setting on the rim plate and skew the eccentric rod at rim plate center, and wherein the rim plate center forms the connecting hole that is connected with power output shaft, and the eccentric rod cooperates with drive module, and under the motion of eccentric rod along with the rim plate, the drive module linear motion is being pushed away. The implementation is convenient.

In addition, the torsion spring is a double torsion spring and includes a torsion spring body, a first torsion arm and a second torsion arm, wherein the first torsion arm is a closed end portion, the second torsion arm is an open end portion,

the tool bit assembly further comprises a positioning bolt and a positioning clamping module which are arranged on the power seat, wherein the torsion spring body is sleeved at two ends of the positioning bolt, the first torsion spring arm is buckled in the positioning clamping module, and the second torsion spring arm is abutted to the bottom of the frame body. The double torsion spring provides large acting force, can continuously provide conflicting acting force in the moving process of the movable knife, and is also beneficial to the reset action of the movable knife.

Preferably, two engaging grooves are formed in the bottom of the frame body, and two arm levers of the second torsion spring arm are attached to the bottom surface of the frame body and engaged in the corresponding engaging grooves. In this way, it is ensured that the torsion spring is displaced during the movement of the movable blade.

In addition, the blade holder is including dismantling respectively on the power seat and can form the left stationary knife seat body and the right stationary knife seat body in location chamber from the tip concatenation, moves the tool post and moves the sword and be located the location intracavity. The assembly is convenient, and the components are protected.

Compared with the prior art, the utility model has the advantages of as follows:

the utility model can prevent the moving knife from contacting with the skin to cause skin damage; on the other hand, due to the arrangement of the knife net, body hair directly enters a shearing area formed by the movable knife and the fixed knife through the comb teeth, and shaving can be finished by continuously keeping the movable knife attached to the fixed knife through the torsion spring.

Drawings

Fig. 1 is a schematic perspective view of the torsional spring type tool bit assembly of the present invention;

FIG. 2 is an exploded view of FIG. 1 (1);

FIG. 3 is an exploded view of FIG. 1 (2);

in the drawings: 1. a tool apron; 10. a left fixed cutter seat body; 11. a right fixed tool base body; z, a positioning column; c. mounting grooves; 2. moving a knife; 20. positioning holes; 3. fixing a cutter; 4. a power device; 40. a power base; 41. a power component; 410. a wheel disc; 411. an eccentric rod; 5. a movable knife rest; 50. a rack body; 51. a transmission module; 52. swinging arms; 53. a positioning module; 54. connecting sleeves; 6. a torsion spring; 60. a torsion spring body; 61. a first torsion spring arm; 62. a second torsion spring arm; 7. a U-shaped stroke limiting module; 70. a long limiting groove; h. a clamping groove; s, positioning bolts; k. and positioning and clamping the module.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

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

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature. It will be understood that when an element is referred to as being "secured to" 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 as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 1, the torsional spring type tool bit assembly of the present embodiment includes a tool post 1, a moving blade 2, a stationary blade 3, a power device 4, a moving blade holder 5, a torsional spring 6, and a U-shaped stroke limiting module 7, wherein the power device 4 includes a power base 40 connected to the tool post 1, a power component 41 disposed on the power base 40 and used for driving the moving blade 2 of the moving blade holder 5 to reciprocate along the length direction of the moving blade 2, the torsional spring 6 is disposed on the power base 40, and one end of the torsional spring abuts against the power base 40, and the other end abuts against the moving blade holder 5.

Referring to fig. 2, the tool apron 1 includes a left fixed tool apron body 10 and a right fixed tool apron body 11 which are respectively detachable from the power base 40 and can be spliced from the end to form a positioning cavity, and the movable tool holder 5 and the movable tool 2 are located in the positioning cavity. The assembly is convenient, and the components are protected.

The fixed knives 3 are respectively inserted into the mounting grooves c formed by the left fixed knife seat body 10 and the right fixed knife seat body 11 from two end parts.

The fixed knife 3 is arched upwards from two sides, wherein two sides of the fixed knife 3 are respectively provided with comb teeth.

The moving blade 2 is recessed from both sides, wherein comb teeth are formed on both sides of the moving blade 2.

In this example, the movable blade 2 is attached to the comb teeth of the fixed blade 3 from the comb teeth, and thus the movable blade 2 reciprocates left and right relative to the fixed blade 3 to cut the hair between the comb teeth.

Referring to fig. 3, the movable blade holder 5 includes a holder body 50 consistent with the movable blade in the length direction, a transmission module 51 located at the bottom of the holder body 50 and connected to the output end of the power unit 41, and swing arms 52 disposed at both ends of the holder body 50 and rotatably connected to the blade holders 1, wherein the movable blade 2 is mounted on the holder body 50, the holder body 50 linearly reciprocates along the length direction thereof, and the swing arms 52 swing in the same direction.

Two positioning modules 53 are formed on the frame body 50 and are distributed at intervals, two positioning holes 20 matched with the positioning modules 53 are correspondingly formed in the movable blade 2, the positioning modules 53 penetrate out of the positioning holes 20, and the movable blade 2 is clamped in the positioning modules 53 and attached to the frame body 50 from the bottom surface. Therefore, the movable knife is very convenient to detach and mount.

In this embodiment, four swing arms 52 are correspondingly arranged on two ends and two sides of the frame body 50, wherein the four swing arms 52 are arranged in parallel, and a connecting sleeve 54 is formed at the lower end of each swing arm 52.

The left fixed tool rest body 10 and the right fixed tool rest body 11 are correspondingly provided with positioning columns z matched with the connecting sleeves 54, and the connecting sleeves 54 are sleeved on the positioning columns z and are arranged in a rotating mode relative to the positioning columns z. The swing arms arranged in parallel enable the swing amplitude to be the same, and therefore the stability of the linear motion of the frame body is ensured.

The power part 41 comprises a wheel disc 410 arranged on the power seat 40 and an eccentric rod 411 arranged on the wheel disc 410 and deviating from the center of the wheel disc 410, wherein the center of the wheel disc forms a connecting hole connected with a power output shaft, the eccentric rod 411 is matched with the transmission module 51, and the transmission module 51 is pushed to move linearly under the movement of the eccentric rod 411 along with the wheel disc 410.

The torsion spring 6 is a double torsion spring and includes a torsion spring body 60, a first torsion arm 61 and a second torsion arm 62, wherein the first torsion arm 61 is a closed end and the second torsion arm 62 is an open end.

The cutter head assembly further comprises a positioning bolt s and a positioning clamping module k which are arranged on the power seat 40, wherein the torsion spring body 60 is sleeved at two ends of the positioning bolt s, the first torsion spring arm 61 is buckled in the positioning clamping module k, and the second torsion spring arm 62 is abutted to the bottom of the frame body 50. The double torsion spring provides large acting force, can continuously provide conflicting acting force in the moving process of the movable knife, and is also beneficial to the reset action of the movable knife.

In order to avoid the displacement of the torsion spring 6 during the movement of the movable blade 2, in this embodiment, two engaging grooves h are formed in the bottom of the holder body 50, and the two arm rods 620 of the second torsion spring arm 62 are attached to the bottom surface of the holder body 50 and engaged in the corresponding engaging grooves h.

Meanwhile, in order to accurately control the moving stroke of the moving blade 2, in this example, the end of the U-shaped stroke limiting module 7 facing upward is fixed inside the fixed blade 3, wherein the U-shaped stroke limiting module 7 is provided with a long limiting groove 70 extending along the length direction of the fixed blade 3, the long limiting grooves 70 and the positioning modules 53 are arranged in a one-to-one correspondence manner, and the upper portion of the positioning module 53 reciprocates in the long limiting groove 70.

In this example, the U-shaped stroke limiting modules 7 can be inserted into the left fixed blade holder body 10 and the right fixed blade holder body 11 from both ends.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a torsional spring formula tool bit subassembly, its includes the blade holder, moves sword and stationary knife and power ware, wherein move the relative both sides of sword and stationary knife and be formed with broach, its characterized in that respectively:

the power device comprises a power seat connected with the cutter holder and a power part arranged on the power seat and used for driving the movable cutter holder to drive the movable cutter to reciprocate along the length direction of the movable cutter, and the torsion spring is arranged on the power seat, one end of the torsion spring is abutted against the power seat, and the other end of the torsion spring is abutted against the movable cutter holder.

2. The torsion spring bit assembly of claim 1, wherein: the movable knife rest comprises a rest body, a transmission module and swing arms, wherein the rest body is consistent with the movable knife in the length direction, the transmission module is positioned at the bottom of the rest body and is connected with the output end part of the power component, the swing arms are arranged at two ends of the rest body and are rotatably connected with the knife rest, the movable knife is arranged on the rest body, the rest body linearly reciprocates along the length direction of the rest body, and the swing arms swing in the same direction.

3. The torsion spring bit assembly of claim 2, wherein: the swing arm parallel arrangement who is located frame body both ends, every the tip is formed with the adapter sleeve under the swing arm, be equipped with in the blade holder with the reference column that the adapter sleeve matches, the adapter sleeve is established just relatively on the reference column rotates the setting.

4. The torsion spring bit assembly of claim 3, wherein: the swing arms are four and are correspondingly arranged at two ends and two sides of the frame body in pairs, and the corresponding end parts of the tool apron are provided with two aligned positioning columns.

5. The torsion spring bit assembly of claim 2, wherein: the frame body is provided with a plurality of positioning modules which are distributed at intervals, the movable knife is correspondingly provided with a plurality of positioning holes matched with the positioning modules, the positioning modules penetrate out of the positioning holes, and the movable knife is clamped on the positioning modules.

6. The torsion spring bit assembly of claim 5, wherein: the fixed knife is arranged by arching upwards from two sides, the movable knife is arranged by sinking downwards from two sides, a U-shaped stroke limiting module with an upward opening is formed inside the fixed knife, a long limiting groove extending along the length direction of the fixed knife is formed in the U-shaped stroke limiting module, the long limiting groove and the positioning module are arranged in a one-to-one correspondence mode, and the upper portion of the positioning module reciprocates in the long limiting groove.

7. The torsion spring bit assembly of claim 2, wherein: the power part comprises a wheel disc arranged on the power seat and an eccentric rod arranged on the wheel disc and deviating from the center of the wheel disc, wherein a connecting hole connected with a power output shaft is formed in the center of the wheel disc, the eccentric rod is matched with the transmission module, and the eccentric rod pushes the transmission module to move linearly along with the movement of the wheel disc.

8. The torsion spring bit assembly of claim 2, wherein: the torsion spring is a double torsion spring and comprises a torsion spring body, a first torsion spring arm and a second torsion spring arm, wherein the first torsion spring arm is a closed end part, the second torsion spring arm is an open end part,

the tool bit subassembly still including setting up the power seat on the locating bolt and the location block module, wherein torsional spring body cover is established the both ends of locating bolt, first torsional spring arm buckle is in the location block module, second torsional spring arm conflict be in the bottom of frame body.

9. The torsion spring bit assembly of claim 8, wherein: two clamping grooves are formed in the bottom of the frame body, and two arm rods of the second torsion spring arm are attached to the bottom surface of the frame body and clamped in the corresponding clamping grooves.

10. The torsion spring bit assembly of claim 1, wherein: the blade holder is including dismantling respectively on the power seat and can form the left stationary knife seat body and the right stationary knife seat body in location chamber from the tip concatenation, move the tool post with move the sword and be located the location intracavity.