Tool bit stabilizing mechanism and hair clipper

Abstract

The utility model relates to the technical field of hair clippers, in particular to a tool bit stabilizing mechanism and a hair clipper, which comprise a movable tool rest provided with a movable blade, a torsion spring and a driving part for driving the movable tool rest to reciprocate, the torsion spring comprises a spring coil and two torsion arms extending from the torsion spring, the movable tool rest is movably connected to the driving part, and the movable tool rest and the driving part are elastically tensioned through the torsion spring. The driving head is provided with an assembling groove for containing a spring coil, the two torsion arms abut against the driving piece and the movable knife rest respectively, and the problems that an existing hair clipper is prone to being abraded and short in service life are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hair clipper technical field, especially a kind of cutter head stabilizing mechanism and hair clipper. BACKGROUND

[0002] The prior art hair clipper, for example, prior application, application number is: "CN119036520A", the Chinese patent application with the name "a cutter head sliding mechanism, reciprocating drive mechanism and its hair clipper" utilizes corresponding drive mechanism to drive slider reciprocating sliding on guide rail, and then through the connecting shaft on slider and moving cutter holder connection, drive moving blade on moving cutter holder reciprocating sliding on fixed cutter head side, realize trimming hair function, in order to make moving blade and fixed cutter head keep adhering, prior art utilizes torsional spring one torsional arm to connect on fixed cutter holder, another torsional arm rotates and is installed on moving cutter holder, and then utilizes the elastic force of torsional spring to make moving blade adhere fixed cutter head all the time, for example, application number: 202322021280.1, the patent application with the name "a blade assembly of shaver" all adopt above-mentioned structure, and its shortcoming lies in:

[0003] When moving blade reciprocating swings on fixed cutter head side, its torsional spring is with one end of casing as swing point, with torsional arm part of torsional spring as radius to swing, so that there is following problem when hair clipper is used: 1. the contact part between moving cutter holder and fixed cutter holder and swing arm, it is easy to appear wear and tear due to long time transmission;2. the torsional arm part of torsional spring is easy to appear torsional spring losing elasticity or breaking due to metal fatigue because of long time swing and torsion, and then greatly influence the service life of hair clipper and user experience. UTILITY MODEL CONTENTS

[0004] In order to solve the above technical problem, the purpose of the utility model is to provide cutter head stabilizing mechanism and hair clipper, solve the problem that existing hair clipper is easy to wear and tear and has poor service life.

[0005] In order to achieve the above-mentioned purpose, the technical scheme adopted by the utility model is: a cutter head stabilizing mechanism, including the moving cutter holder of setting moving blade, torsional spring and the drive member of driving moving cutter holder reciprocating action, the torsional spring includes spring ring and two torsional arms extended from the torsional spring, the moving cutter holder is movably connected on the drive member, and the two are elastically tensioned by the torsional spring, the drive member has assembly slot accommodating spring ring, and two torsional arms are respectively connected on the drive member and the moving cutter holder.

[0006] Further, one side of the moving cutter holder is provided with two mounting ears, and one end of the drive member is inserted with the moving cutter holder and embedded between the two mounting ears.

[0007] By adopting the above technical scheme, the drive member and the moving cutter holder are combined and installed through insertion.

[0008] Further, the outer side of the mounting ear is formed with a limiting groove, one side of the assembly groove is provided with a connecting groove, and the two torsion arms extending from the spring ring are correspondingly assembled in the limiting groove and the connecting groove.

[0009] By adopting the above technical scheme, the limiting groove can limit the connection position of the torsion arm on the moving knife holder, so that the torsion arm is more stable when connected on the mounting bracket, and the connecting groove also makes the connection between the torsion spring and the driving member more stable.

[0010] Further, a guide groove is arranged on the mounting ear along the elastic tension direction of the torsion spring, and a guide rod is arranged on the side surface of the driving member, and the guide rod is correspondingly and slidingly connected in the guide groove.

[0011] By adopting the above technical scheme, the guide groove is arranged, so as to facilitate the dynamic blade on the moving knife holder to always adhere to the fixed blade under the elastic force of the torsion spring.

[0012] Further, the moving knife holder is provided with a connecting hole between the two mounting ears, and the driving head comprises a main body and a connecting head arranged at one end of the main body, and the connecting head is inserted into the connecting hole to be inserted and matched with the moving knife holder.

[0013] By adopting the above technical scheme, the connecting head and the connecting hole are inserted and matched, so as to facilitate the close assembly of the two.

[0014] Further, the side edge of the connecting head is provided with a contact protrusion, and the connecting head is in abutment with the inner wall of the connecting hole through the contact protrusion.

[0015] By adopting the above technical scheme, the contact protrusion can reduce the contact surface between the driving member and the moving knife holder, and further reduce the friction by reducing the contact surface.

[0016] Further, the inner wall of the connecting head and the connecting hole is respectively provided with an anti-disengagement protrusion along the insertion direction of the two.

[0017] By adopting the above technical scheme, the anti-disengagement protrusion can prevent the moving knife holder and the driving member from being connected through the anti-disengagement protrusion when the moving knife holder and the driving member are not assembled with the fixed knife head, and the moving knife holder and the driving member will not be accidentally separated due to the elastic force of the elastic member. The setting is to facilitate the assembly of various parts of the product.

[0018] Further, the connecting head and the main body are arranged in a bent manner.

[0019] By adopting the above technical scheme, the bending arrangement makes the dynamic blade on the moving knife holder have a certain angle with the shell, so that the dynamic blade is in a position convenient for adhering to the surface of the human skin when the person holds the hair clipper, and the person can conveniently operate and use the hair clipper.

[0020] Further, the movable cutter holder has a limiting edge to limit the displacement distance when the driving member is inserted into the movable cutter holder.

[0021] By abutting the limiting edge against the driving head, the stroke of the insertion of the two is limited.

[0022] A hair clipper comprising the cutter head stabilizing mechanism.

[0023] Compared with the prior art, the hair clipper has the following advantages:

[0024] The movable cutter holder is directly connected with the driving member in a movable manner, and the torsional spring is used to elastically press the two, which has the following advantages:

[0025] 1. The movable cutter is directly connected with the driving member in a movable manner, and the elastic member is used to elastically press the two, so that the driving member, the movable cutter and the elastic member keep synchronous movement when the driving member is displaced, the torsional spring is prevented from directly contacting the fixed cutter holder and the movable cutter holder, the wear of the connection between the torsional spring, the fixed cutter holder and the movable cutter holder is avoided, the service life of the product is prolonged, the swing instability of the movable cutter caused by the swing gap between the fixed cutter holder and the torsional spring is avoided, the movable cutter is more stable during operation, the movable cutter will not exceed the edge of the fixed cutter during linear reciprocating movement, the safety of the product is improved, and the elimination of the swing gap between the components makes the product relatively quieter during operation.

[0026] 2. The elastic member only provides elastic tension between the movable cutter holder and the driving member, the spring does not deform or twist, the metal fatigue caused by the long-time swing and twist of the torsional spring is eliminated, the durability of the torsional spring is improved, the driving member and the movable cutter are not affected by alternating stress during operation, the influence of the wear, fracture or failure of the parts on the service life is solved, and the service life is greatly improved.

[0027] 3. The driving member is provided with an assembly groove for accommodating the spring ring, and the torsional arms are connected to the movable cutter holder and the driving member, which has the following effects:

[0028] The torsional spring can be effectively accommodated, so that displacement or misplacement of the torsional spring during operation is avoided, and the stability and reliability of the mechanism operation are improved. The position of the spring ring is fixed, and the torque provided thereby is more stable, which helps to realize more accurate control of the action of the moving blade and ensures the consistency of the cutting process. The torsional arm is directly abutted on the driving member and the moving blade holder, the relative sliding between components is reduced, and the possibility of wear is reduced, thereby prolonging the service life of the mechanism. This design can make the assembly process simpler, because the installation position of the torsional spring is predetermined, and only the torsional arm needs to be correctly placed to complete the assembly, without additional positioning or adjustment steps. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a hair cutter structure schematic view of the utility model.

[0030] Figure 2 It is a knife head stabilizing mechanism structure schematic view of the utility model.

[0031] Figure 3 It is a knife head stabilizing mechanism structure schematic view of the utility model.

[0032] Figure 4 It is a knife head stabilizing mechanism partial structure schematic view of the utility model.

[0033] Figure 5 It is a driving mechanism and knife head stabilizing mechanism schematic view of the utility model.

[0034] Figure 6 It is a driving member structure schematic view of the utility model.

[0035] Figure 7 It is a moving blade holder structure schematic view of the utility model.

[0036] Figure 8 It is a hair cutter internal structure schematic view of the utility model.

[0037] Figure 9 It is a guide limiting mechanism schematic view of the utility model.

[0038] Figure 10 It is a guide limiting mechanism structure schematic view of the utility model.

[0039] Figure 11 It is a plug rod cross section view of the utility model.

[0040] Figure 12 It is a driving mechanism and knife head stabilizing mechanism schematic view of the utility model.

[0041] Figure 13 It is a hair cutter internal section view of the utility model.

[0042] In the figure:

[0043] 100 housing, 110 fixed blade, 120 fixed blade holder.

[0044] 200 drive, 201 main body, 202 drive head, 2021 insertion hole, 211 assembly slot, 212 connecting slot, 220 connecting head, 230 guide rod, 240 contact protrusion, 250 limiting protrusion, 260 mounting plate, 261 mounting hole, 262 guide slot, 263 push head.

[0045] 300 elastic member, 310 torsion spring, 311 torsion ring, 312 first torsion arm, 313 second torsion arm, 320 spring.

[0046] 400 moving blade, 410 moving blade holder, 4101 insertion rod, 411 connecting hole, 412 assembly column, 413 guide slot, 414 limiting slot, 415 mounting lug, 416 limiting edge, 420 blind hole, 430 guide rib, 440 slot.

[0047] 510 motor, 520 connecting seat, 530 connecting shaft, 540 guide rail, 550 eccentric wheel, 551 eccentric shaft. DETAILED DESCRIPTION

[0048] The utility model will be described in further detail below in combination with the drawings.

[0049] A cutter head stabilizing mechanism, referring to 1 and 2, is arranged on a hair clipper, which comprises a moving blade holder 410 provided with a moving blade 400 and a drive 200 driving the moving blade holder 410 to reciprocate linearly, the moving blade holder 410 is movably connected to the drive 200, and an elastic member 300 is arranged between the two to elastically tension them, the hair clipper mainly comprises a housing 100, a driving mechanism, a fixed blade 110 and a fixed blade holder 120, the fixed blade 110 is mounted at the end of the fixed blade holder 120 and located at one end of the housing 100, the moving blade 400 is arranged at one side of the fixed blade 110, the drive 200 is the output end of the driving mechanism, the lower end of the drive 200 is connected to the driving mechanism, and the upper end is connected between the drive 200 and the moving blade holder 410, so that when the driving mechanism drives the moving blade holder 410 to reciprocate linearly, the moving blade 400 is driven to reciprocate linearly at one side of the fixed blade 110, and the moving blade 400 and the fixed blade 110 are matched to realize the trimming of hair by reciprocating action.

[0050] The elastic member 300 in the prior art is used to make the moving blade 400 tightly contact with the fixed blade 110, and the existing elastic member 300 mostly adopts a torsion spring 310, one end of which is installed on the fixed blade holder 120 and the other end of which is installed on the moving blade holder 410, so as to realize the elastic pressing between the moving blade 400 and the fixed blade 110. In the embodiment, the moving blade holder 410 provided with the moving blade 400 is directly connected with the driving member 200 in a movable manner, and the elastic member 300 is used to make the two elastically press, which has the following advantages:

[0051] 1. Since the moving blade 400 is directly connected with the driving member 200 in a movable manner, the elastic member 300 is used to elastically tension between the two, so that the driving member 200 keeps synchronous movement with the two when the driving member 200 is displaced, effectively avoiding the direct contact between the torsion spring 310 and the fixed blade holder 120 and the wear problem at the connecting position between the fixed blade holder 120 and the torsion spring 310, thereby prolonging the service life of the product and avoiding the unstable swing of the moving blade 400 caused by the swing gap of the product due to the wear at the connecting position between the fixed blade holder 120 and the torsion spring 310, so that the moving blade 400 is more stable during operation and the situation that the moving blade 400 exceeds the edge of the fixed blade 110 during linear reciprocating motion and hurts people is avoided, thereby effectively improving the safety of the product, and the elimination of the swing gap between the components also makes the product relatively quieter during operation.

[0052] 2. In the embodiment, the elastic member 300 only provides elastic tension between the moving blade holder 410 and the driving member 200, and the spring 320 does not deform or twist, thereby eliminating the metal fatigue caused by the long-time swing and twist of the torsion spring 310, effectively improving the durability of the torsion spring 310, and the driving member 200 and the moving blade holder 410 are not subjected to alternating stress during operation of the product, thereby completely solving the problem of the influence of the wear or fracture or failure of the components on the service life and greatly improving the service life.

[0053] In the embodiment, the moving blade holder 410 and the moving blade 400 can be integrally formed or detachably connected, and are preferably detachably installed on one side of the moving blade holder 410. Specifically, an assembly column 412 is formed on the moving blade holder 410, and a through hole is formed on the moving blade 400, and the assembly column 412 is inserted into the through hole to realize the detachable combination of the two.

[0054] In the embodiment, the driving member 200 includes a main body 201 connected with the driving mechanism and a driving head 202 movably connected with the moving blade holder 410 and arranged on the main body 201.

[0055] In order to further limit the movement direction between the movable cutter holder 410 and the driving member 200 after assembly, so as to avoid the abrasion and noise caused by the adverse loosening or the shaking in the elastic tension direction of the inelastic member 300 between the movable cutter holder 410 and the driving member 200, in the embodiment, the cutter head stabilizing mechanism further comprises a guiding and limiting mechanism, which acts between the driving member 200 and the movable cutter holder 410, so as to limit or eliminate the adverse displacement and shaking in the elastic tension direction of the inelastic member 300 between the driving member 200 and the movable cutter holder 410.

[0056] As an embodiment of the guiding and limiting mechanism, it comprises a guiding structure and a limiting structure, the limiting structure is used for eliminating the assembly play of the movable cutter holder 410 and the driving member 200 in the movement direction of the movable cutter blade 400, and the guiding structure is used for guiding the movement of the movable cutter holder 410 and the driving member 200 in the elastic tension direction of the inelastic member 300.

[0057] Specifically, referring to Figure 2 , 3 , 4 and 5, the limiting mechanism comprises two mounting ears 415 arranged on one side of the movable cutter holder 410, and a receiving space is formed between the adjacent mounting ears 415, and the driving head 202 is inserted into the receiving space. Thus, since the driving member 200 is limited in the reciprocating movement direction of the movable cutter holder 410 by the mounting ears 415, the driving head 202 and the movable cutter holder 410 keep synchronous movement when the driving head 202 drives the movable cutter holder 410 to reciprocate, so as to avoid unnecessary shaking between the driving head 202 and the movable cutter holder 410 due to the assembly play, thereby generating noise during product operation, and effectively improving the service life and noise reduction effect of the product.

[0058] Based on the above embodiment, referring to Figure 4 , the guiding structure comprises a guiding groove 413 arranged on the mounting ear 415 in the elastic tension direction of the inelastic member 300, and the two sides of the driving head 202 are provided with guiding rods 230 which can linearly slide in the guiding groove 413. Thus, when the driving head 202 is inserted into the receiving space, since the guiding rod 230 slides in the guiding groove 413, the movement track of the guiding rod 230 is limited in the opening direction of the guiding groove 413, that is, the movable cutter holder 410 is only subjected to the elastic force of the inelastic member 300 towards the fixed cutter blade 110, and will not shake or deviate in the adverse direction, thereby effectively improving the abrasion resistance of the product components and reducing the noise during product operation.

[0059] In the embodiment, since the guiding groove 413 and the guiding rod 230 are in sliding fit, the movable cutter holder 410 and the driving head 202 are always connected, that is, the guiding structure also has the function of preventing the movable cutter holder 410 and the driving head 202 from accidentally separating after being combined, thereby effectively improving the integration of the product components.

[0060] In the embodiment, referring to Figure 4 and 5The elastic member 300 can be a spring 320, a compression spring, or a torsion spring 310, or other elastic member 300, as long as it can exert elastic tension on the driving head 202 and the movable blade holder 410 to enable the movable blade 400 to be attached to the fixed blade 110. The present embodiment takes the torsion spring 310 as an example to describe the structural connection relationship between the elastic member 300 and the driving head 202 and the movable blade holder 410.

[0061] In the present embodiment, referring to Figure 5 , 6 and 7, the torsion spring 310 includes a spring ring 311 and two torsion arms extending from the spring ring 311, and a certain included angle is formed between the two torsion arms. The spring ring 311 is arranged on the driving head 202, and the two torsion arms are connected to the main body 201 and the movable blade holder 410, respectively. For the convenience of description, the torsion arm in contact with the movable blade holder 410 is referred to as the first torsion arm 312, and the torsion arm in contact with the driving head 202 is referred to as the second torsion arm 313. The driving head 202 is provided with an assembly groove 211 accommodating the spring ring 311 and a connecting groove 212 adapted to be inserted with the first torsion arm 312. The side surface of the movable blade holder 410 is located in a limiting groove 414 cooperating with the second torsion arm 313. When the movable blade holder 410, the torsion spring 310, and the driving head 202 are combined, the spring ring 311 is correspondingly accommodated in the assembly groove 211, the end of the first torsion arm 312 is inserted in the connecting groove 212, and the end of the second torsion arm 313 abuts against the limiting groove 414. Thus, the movable blade 400 on the movable blade holder 410 is always attached to the fixed blade 110 by the elastic force of the torsion spring 310, effectively ensuring the connection tightness between the movable blade 400 and the fixed blade 110.

[0062] In the present embodiment, referring to Figure 6 and 7 , the end of the driving head 202 is formed with a connecting head 220, and the movable blade holder 410 is provided with a connecting hole 411 adapted to be inserted with the connecting head 220 between the two mounting ears 415. When the driving head 202 and the movable blade holder 410 are inserted and combined, the connecting head 220 is inserted into the connecting hole 411, facilitating the assembly of the two, and the insertion of the connecting head 220 into the connecting hole 411 also facilitates the guiding and limiting of the movement direction between the movable blade holder 410 and the driving head 202.

[0063] Further, the movable blade holder 410 is provided with a limiting edge 416 at the bottom of the connecting hole 411. When the driving head 202 is inserted into the connecting hole 411 by the connecting head 220, the limiting edge 416 abuts against the driving head 202, thereby limiting the insertion stroke of the two.

[0064] In this embodiment, the connecting hole 411 is a rectangular hole, a square hole or other hole type through the movable tool holder 410, the shape of the connecting head 220 is matched with the shape of the connecting hole 411, in order to avoid excessive displacement of the connecting head 220 along the insertion direction of the connecting hole 411, and under the action of the elastic tension of the elastic member 300, the excessive separation between the movable tool holder 410 and the driving head 202 affects the assembly of the subsequent parts, the limiting protrusions 250 are arranged on the top wall of the connecting hole 411 (see Figure 7 ) and the top of the connecting head 220 (see Figure 6 ), so that when the elastic member 300 is elastically loaded on the driving head 202 and the movable tool holder 410, the two limiting protrusions 250 correspond to the contact after the connecting head 220 moves a certain distance in the connecting hole 411, which can avoid the excessive displacement of the connecting head 220 in the connecting hole 411, so as to facilitate the assembly of the subsequent parts.

[0065] In this embodiment, referring to Figure 6 and 7 , in order to reduce the contact friction between the connecting head 220 and the connecting hole 411, and reduce the friction loss between the driving head 202 and the movable tool holder 410, the contact protrusions 240 are arranged on the front and rear sides of the connecting head 220, the connecting head 220 is in contact with the inner wall of the connecting hole 411 through the contact protrusions 240, and the contact surface between the parts is reduced, thereby achieving the effect of reducing wear.

[0066] Referring to Figure 8 and 9 , as a second embodiment of the guide limiting mechanism, referring to Figure 8 , the limiting structure includes a guide groove 262 and a guide rib 430 linearly sliding along the guide groove 262, the guide rib 430 is arranged on any adjacent side of the movable tool holder 410 and the driving head 202, and the guide groove 262 is arranged on the other side, in this embodiment, the guide rib 430 is arranged on one side of the movable tool holder 410, and the guide groove 262 is arranged on one end of the driving head 202.

[0067] In this embodiment, the end of the driving head 202 is provided with a mounting plate 260, and the guide groove 262 is correspondingly arranged at the center position of one side of the mounting plate 260, when the movable tool holder 410 is combined with the mounting plate 260, the guide rib 430 is correspondingly inserted into the guide groove 262, at this time, the movable tool holder 410 and the mounting plate 260 are limited along the reciprocating movement direction of the movable tool holder 410, and the movable tool holder 410 and the driving head 202 can only relatively displace along the insertion direction, the elastic member 300 is elastically loaded between them, and the elastic force is applied to them, so that the movable blade 400 on the movable tool holder 410 is always attached to one side of the fixed blade 110.

[0068] In the embodiment, the elastic member 300 preferably adopts a spring 320. Correspondingly, in order to facilitate the concealment of the spring 320, improve the product aesthetics, and optimize the product structure, a mounting hole 261 is formed on one side of the mounting plate 260. Correspondingly, the spring 320 can be placed in the mounting hole 261 to conceal and protect the spring 320, improve the product aesthetics, and optimize the product volume.

[0069] In the embodiment, the elastic member 300 preferably adopts a spring 320. Correspondingly, in order to facilitate the concealment of the spring 320, improve the product aesthetics, and optimize the product structure, a mounting hole 261 is formed on one side of the mounting plate 260. Correspondingly, the spring 320 can be placed in the mounting hole 261 to conceal and protect the spring 320, improve the product aesthetics, and optimize the product volume. Figure 9

[0070] In the embodiment, the guiding mechanism includes a push head 263 arranged on both sides of the mounting plate 260, and one side of the movable tool holder 410 is provided with a corresponding slot 440. As described above in the first embodiment, the movable tool holder 410 also has a corresponding mounting lug 415 on one side, and the slot 440 can be formed on the mounting lug 415 to facilitate the assembly of the movable tool holder 410 and the driving head 202. In this way, by relatively sliding the push head 263 in the slot 440, the movement direction between the movable tool holder 410 and the driving head 202 is limited to the elastic expansion direction of the spring 320.

[0071] As a third embodiment of the guiding and limiting mechanism, the guiding and limiting mechanism in the above embodiments is divided into two parts, guiding structure and limiting structure. It can be conceived that as long as the movement direction between the movable tool holder 410 and the driving head 202 can be limited to the elastic tensioning direction of the elastic member 300 to eliminate the movement of the movable tool holder 410 and the driving head 202 in other unfavorable directions, the guiding structure and the limiting structure can be integrated together. Referring to Figure 10 11 The end of the driving head 202 is provided with a plug-in hole 2021, and the side of the movable tool holder 410 is provided with a plug rod 4101 which is movably plugged into the plug-in hole 2021. The elastic member 300 is correspondingly arranged at the bottom of the plug-in hole 2021 and the end of the plug rod 4101 away from the movable tool holder 410. In this way, by using the plug-in cooperation of the plug rod 4101 and the plug-in hole 2021, the movement direction of the movable tool holder 410 and the driving head 202 is limited, and the shaking of the two in the direction of linear reciprocating movement of the movable tool blade 400 is eliminated. The structure is simpler, and the assembly of components is relatively more convenient.

[0072] In the embodiment, the spline cooperation is preferably adopted between the plug rod 4101 and the plug-in hole 2011. Referring to Figure 10 That is, the cross section of the plug rod 4101 is an irregular circle to avoid the circumferential rotation of the two after plugging.

[0073] ​​In the embodiment, the two ends of the spring 320 can be fixed at the hole bottom of the insertion hole 2021 and the end of the insertion rod 4101, or the anti-disengagement ring can be arranged on the outer periphery of the end of the insertion rod 4101 and the inner wall of the insertion hole 2021, so as to limit the maximum displacement distance of the insertion rod 4101 in the insertion hole 2021.

[0074] With reference to Figure 12 and 13 As the power source of the linear reciprocating swinging direction of the driving member, the driving mechanism is cited in the patent of the online application, and here, only the driving mechanism is simply described. The driving mechanism comprises two guide rails 540 arranged in the shell 100, and the main body 210 is slidably arranged on the guide rails 540. The guide rails 540 are driven by a power part arranged in the shell 100 to linearly reciprocate along the guide rails 540. The power part comprises a motor 510, an eccentric wheel 550, a connecting seat 520 and a connecting shaft 530. The output end of the motor 510 is connected to the eccentric wheel 550. The upper end of the eccentric wheel 550 is provided with an eccentric shaft 551. The connecting seat 520 is internally provided with two shaft holes at two ends respectively. One of the shaft holes is connected to the eccentric shaft 551, and the other shaft hole is rotatably connected to the lower end of the connecting shaft 530. The upper end of the connecting shaft 530 is rotatably connected to the main body 210. Thus, the main body 210 can be driven to reciprocate along the guide rails 540 by the rotation of the motor 510, the eccentric shaft 550, the connecting seat 520 and the connecting shaft 530, so as to realize the reciprocating movement of the movable knife holder 410 on the side of the fixed blade.

[0075] In the embodiment, the driving mechanism can also be other structures, such as a reciprocating thread arranged on the guide rail 540, the two ends of which are rotatably connected in the shell 100. The guide rail 540 is driven to rotate by the motor 510. The main body 201 is provided with a reciprocating threaded hole which is in sliding cooperation with the guide rail 540. In this way, the linear movement of the driving member 200 can also be realized by the reciprocating thread cooperation. Of course, the driving mechanism can also be other embodiments, which will not be described one by one

[0076] Although the preferred embodiments of the utility model have been described in detail above, it should be clearly understood that the utility model can have various changes and variations for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A tool bit stabilizing mechanism comprising a moving tool holder for setting a moving blade, a torsion spring and a driving member for driving the moving tool holder to reciprocate, the torsion spring comprising a spring ring and two torsion arms extended from the torsion spring, characterized in that, The movable cutter holder is movably connected to the driving member, and the two are elastically tensioned by the torsion spring, the driving member has an assembly groove for accommodating the spring ring, and the two torsion arms are respectively connected to the driving member and the movable cutter holder.

2. A tool bit stabilizing mechanism according to claim 1, wherein One end of the driving member is inserted into the movable cutter holder and is embedded between the two mounting ears.

3. A tool bit stabilizing mechanism according to claim 2, wherein The outer side of the mounting ear forms a limiting groove, one side of the assembly groove is provided with a connecting groove, and the two torsion arms extending from the spring ring are respectively assembled in the limiting groove and the connecting groove.

4. A tool bit stabilizing mechanism according to claim 2, wherein The mounting ear is provided with a guide groove in the elastic tensioning direction of the torsion spring, and the side surface of the driving member is provided with a guide rod which is correspondingly and slidingly connected in the guide groove.

5. A tool bit stabilizing mechanism according to claim 2, wherein The movable cutter holder is provided with a connecting hole between the two mounting ears, the driving member includes a main body and a driving head provided at one end of the main body, the driving head is inserted into the connecting hole to be inserted and matched with the movable cutter holder, and the end of the driving head forms a connecting head.

6. A tool bit stabilizing mechanism according to claim 5, wherein The side of the connecting head is provided with a contact protrusion, and the connecting head is abutted with the inner wall of the connecting hole through the contact protrusion.

7. A tool bit stabilizing mechanism according to claim 5 wherein, The connecting head and the inner wall of the connecting hole are respectively provided with anti-disengagement protrusions in the inserting direction of the two.

8. A tool bit stabilizing mechanism according to claim 5, wherein The connecting head and the main body are bent.

9. A tool bit stabilizing mechanism according to claim 5 wherein, The movable cutter holder has a limiting edge to limit the displacement distance of the driving member when the driving member is inserted into the movable cutter holder.

10. A hair clipper characterized by comprising: The tool head stabilizing mechanism comprises the tool head stabilizing mechanism according to any one of claims 1-9. The tool head stabilizing mechanism comprises the tool head stabilizing mechanism according to any one of claims 1-9.

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