Tool bit stabilizer and hair clipper

By directly connecting the moving blade holder to the drive unit in the hair clipper and utilizing elastic elements and guide limiting mechanisms, the wear and torsion spring fatigue problems at the connection between the moving and fixed blade heads are solved, thereby improving the product's service life and safety.

CN223989533UActive Publication Date: 2026-03-13余姚市睿科电器有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-23
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

In existing hair clippers, the connection structure between the moving and fixed blades is prone to short service life due to wear and torsion spring fatigue, and also poses safety hazards.

Method used

The moving tool holder and the drive component are directly connected, elastic tension is achieved using elastic components, and the movement direction of the moving tool holder and the drive component is restricted by a guide and limit mechanism to eliminate undesirable shaking and wear.

Benefits of technology

It extends the lifespan of the hair clipper, improves safety and operational stability, reduces noise, and avoids metal fatigue and wear of the torsion spring.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of hair clippers, in particular to a tool bit stabilizer and a hair clipper, which comprise a movable tool rest provided with a movable blade and a driving piece for driving the movable tool rest to do reciprocating linear motion, the movable tool rest is movably connected to the driving piece, and an elastic piece for elastically tensioning the movable tool rest and the driving piece is arranged between the movable tool rest and the driving piece. The problems that an existing hair clipper is prone to abrasion and short in service life are solved.
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Description

Technical Field

[0001] This utility model relates to the field of hair clipper technology, and in particular to a blade stabilizer and a hair clipper. Background Technology

[0002] Existing hair clippers, such as the earlier Chinese patent application with application number CN119036520A entitled "A Blade Sliding Mechanism, Reciprocating Drive Mechanism and Hair Clipper Thereof," utilize a corresponding drive mechanism to drive a sliding member to reciprocate on a guide rail. This sliding member, connected to a moving blade holder via a connecting shaft, drives the moving blade head on the moving blade holder to reciprocate on one side of the fixed blade head, achieving the hair trimming function. To maintain a close fit between the moving and fixed blade heads, the prior art uses a torsion spring, with one torsion arm connected to the fixed blade holder and the other torsion arm rotatably mounted on the moving blade holder. The elastic force of the torsion spring ensures the moving blade head remains in contact with the fixed blade head. For example, patent application number 202322021280.1, entitled "A Blade Assembly for a Shaver," also employs this structure. However, its drawbacks are:

[0003] When the moving blade head swings back and forth on one side of the fixed blade head, its torsion spring swings with the point of swing between itself and the housing as the swing point and the torsion arm of the torsion spring as the radius. This causes the following problems when using the hair clipper: 1. The contact parts between the moving blade holder, the fixed blade holder and the swing arm are easily worn and damaged due to long-term transmission; 2. Due to long-term swinging and twisting, the torsion arm of the torsion spring is prone to metal fatigue, and the torsion spring may lose its elasticity or break, which greatly affects the service life of the hair clipper and the user experience. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a blade stabilizer and a hair clipper, which solves the problems of easy wear and poor service life of existing hair clippers.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a blade stabilizer, comprising a movable blade holder with a movable blade and a driving member that drives the movable blade holder to reciprocate linearly, wherein the movable blade holder is movably connected to the driving member, and an elastic member is provided between the two to elastically tension the two.

[0006] Furthermore, the moving tool holder and the drive component are also equipped with a guide limiting mechanism that restricts their movement direction to the elastic tension direction of the elastic component.

[0007] By adopting the above technical solution and setting the guide and limit mechanism, the problem of wear between the components caused by loosening in an unfavorable direction between the moving blade holder and the drive component can be eliminated when the hair clipper is allowed to wear out, thereby improving the service life of the product and reducing operating noise.

[0008] Furthermore, the guide limiting mechanism includes a limiting structure and a guiding structure. The limiting structure is used to eliminate the assembly clearance between the moving tool holder and the driving member along the moving blade's direction of movement, and the guiding structure is used to guide the moving tool holder and the driving head to move in the elastic tension direction of the elastic member.

[0009] By adopting the above technical solution, the limiting structure restricts the assembly clearance of the moving blade holder and the drive component along the moving blade's direction of movement, which can effectively prevent wear between the two during the operation of the hair clipper. It also makes the moving blade more stable during reciprocating motion. The guide structure, in conjunction with the limiting structure, can effectively eliminate the undesirable oscillation direction between the moving blade holder and the drive component, making the moving blade holder run more smoothly. This prevents the moving blade edge from exceeding the fixed blade edge due to unstable operation, thus avoiding injury. It greatly improves the safety and quietness of the product during operation.

[0010] Furthermore, the limiting structure includes at least two mounting ears on one side of the moving tool holder, with an accommodating space formed between adjacent mounting ears, and one end of the driving member is correspondingly inserted into the accommodating space to eliminate assembly clearance between the two along the moving blade's direction of movement.

[0011] By adopting the above technical solution and installing the ear, it is convenient to connect and combine the moving tool holder and the driving component, and it is also convenient to set the guide groove.

[0012] Furthermore, the guide structure includes a guide groove on the mounting ear, and a guide rod is provided on the side of the drive member. When the drive member is connected to the moving tool holder, the guide rod is slidably disposed in the guide groove.

[0013] By adopting the above technical solution, the sliding fit between the guide groove and the guide rod can effectively guide the movement direction between the drive component and the moving tool holder, so that the moving tool holder will only move towards the direction of the fixed blade under the elastic force of the elastic component.

[0014] Furthermore, the moving blade holder is provided with a connecting hole, and one end of the driving component is inserted into the connecting slot to connect with the moving blade.

[0015] By adopting the above technical solution, the two are plugged together, which facilitates the combination between the drive component and the moving tool holder.

[0016] Furthermore, the driving component includes a connector that forms a plug-in fit with the connecting hole, and the side of the connector is provided with contact protrusions.

[0017] By adopting the above technical solution, the setting of contact protrusions helps to reduce the contact area between the drive component and the moving tool holder, thereby reducing component wear and increasing the service life of the generated components.

[0018] Furthermore, the inner walls of the connector and the connecting hole are respectively provided with anti-dislodgement protrusions along their insertion direction.

[0019] By adopting the above technical solution, the anti-detachment protrusion can prevent the moving tool holder and the drive component from being accidentally separated due to the elastic force of the elastic component when they are not fully assembled with the fixed tool head. This design facilitates the assembly of various parts of the product.

[0020] Furthermore, the limiting structure includes a guide groove and a guide rib that slides linearly along the guide groove. The guide rib is provided on either side of the moving tool holder and the driving member, and the guide groove is provided on the other side.

[0021] By adopting the above technical solution and using the rib groove fit, the volume of the limiting structure can be effectively reduced, so that the product volume is relatively smaller after the moving tool holder and the driving component are assembled.

[0022] Furthermore, the guide structure includes a slot on one side of the moving tool holder, and the drive member is provided with a dial that can move within the slot.

[0023] By adopting the above technical solution, the guide function of both can also be achieved by sliding the dial within the slot.

[0024] In a further embodiment, the driving component includes a main body connected to the driving mechanism and a driving head movably connected to the moving tool holder on the main body. The driving head has a mounting hole on the side facing the moving tool holder, and the elastic element is correspondingly hidden in the mounting hole.

[0025] By adopting the above technical solution, the mounting holes are designed to hide and protect the elastic components, while optimizing the product component structure and making the product more refined and aesthetically pleasing.

[0026] In a further embodiment, the end of the drive head is provided with a mounting plate, and the guide groove is formed on the side of the mounting plate.

[0027] By adopting the above technical solution, the mounting plate is designed to increase the contact area between the drive component and the moving tool holder, making the connection between the two more stable.

[0028] In a further embodiment, the elastic element is any one of a spring, a torsion spring, and a compression spring.

[0029] A hair clipper includes a housing, a fixed blade disposed at the end of the housing, a drive mechanism, and a blade stabilizer as described above. A movable blade is disposed on one side of the fixed blade. The drive mechanism is disposed inside the housing and is used to drive the drive component to reciprocate linearly.

[0030] Compared with the prior art, the advantages of this utility model are:

[0031] In this invention, the movable blade holder, which houses the movable blade, is directly and movably connected to the driving component, and an elastic element is used to elastically compress the two together. This has the following advantages:

[0032] 1. Because the moving blade is directly connected to the drive unit, and the two are elastically tensioned through an elastic element, the three components move synchronously when the drive unit is displaced. This effectively avoids direct contact between the torsion spring and the fixed blade holder and the moving blade holder, thus preventing wear at the connection between the fixed blade holder and the torsion spring. This extends the product's service life and avoids the unstable wobbling of the moving blade caused by the wobbling gap due to wear at the connection between the fixed blade holder and the torsion spring, which is common in traditional hair clippers. This makes the moving blade run more smoothly and prevents it from going beyond the edge of the fixed blade during reciprocating linear motion, which could cause injury. This effectively improves product safety. At the same time, the elimination of wobbling gaps between components also makes the product relatively quieter during operation.

[0033] 2. The elastic element only provides elastic tension between the moving tool holder and the drive component. The spring does not deform or twist, thus eliminating metal fatigue caused by long-term swinging and twisting of the torsion spring, effectively improving the durability of the torsion spring. At the same time, the drive component and the moving tool holder are not subjected to alternating stress during product operation, completely solving the problem of the impact of wear, breakage or failure of these parts on service life, and greatly improving the product life. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of the hair clipper of this utility model.

[0035] Figure 2 This is a schematic diagram of the cutter head stabilizer structure of this utility model.

[0036] Figure 3 This is a schematic diagram of the cutter head stabilizer structure of this utility model.

[0037] Figure 4 This is a schematic diagram of the cutter head stabilizer part of this utility model.

[0038] Figure 5 This is a schematic diagram of the drive mechanism and cutter head stabilizer of this utility model.

[0039] Figure 6 This is a schematic diagram of the drive component structure of this utility model.

[0040] Figure 7 This is a schematic diagram of the moving tool holder structure of this utility model.

[0041] Figure 8 This is a schematic diagram of the internal structure of the hair clipper of this utility model.

[0042] Figure 9 This is a schematic diagram of the guide and limiting mechanism of this utility model.

[0043] Figure 10 This is a schematic diagram of the guide and limit mechanism of this utility model.

[0044] Figure 11 This is a cross-sectional view of the insertion rod of this utility model.

[0045] Figure 12 This is a schematic diagram of the drive mechanism and cutter head stabilizer of this utility model.

[0046] Figure 13 This is a cross-sectional view of the internal structure of the hair clipper of this utility model.

[0047] In the picture:

[0048] 100 housing, 110 fixed blade, 120 fixed tool holder.

[0049] 200 Drive component, 201 Main body, 202 Drive head, 2021 Insertion hole, 211 Assembly slot, 212 Connection slot, 220 Connector, 230 Guide rod, 240 Contact protrusion, 250 Limiting protrusion, 260 Mounting plate, 261 Mounting hole, 262 Guide slot, 263 Dial head.

[0050] 300 Elastic element, 310 Torsion spring, 311 Torsion ring, 312 First torsion arm, 313 Second torsion arm, 320 Spring.

[0051] 400 Moving blade, 410 Moving tool holder, 4101 Insert rod, 411 Connecting hole, 412 Assembly column, 413 Guide groove, 414 Limiting groove, 415 Mounting ear, 416 Limiting edge, 420 Blind hole, 430 Guide rib, 440 Slot.

[0052] 510 motor, 520 connector, 530 connector shaft, 540 guide rail, 550 eccentric wheel, 551 eccentric shaft. Detailed Implementation

[0053] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0054] A blade stabilizer, referring to 1 and 2, is installed on a hair clipper. It includes a movable blade holder 410 with a movable blade 400 and a drive member 200 that drives the movable blade holder 410 to reciprocate linearly. The movable blade holder 410 is movably connected to the drive member 200, and an elastic member 300 is provided between the two to elastically tension them. The hair clipper mainly consists of a housing 100, a drive mechanism, a fixed blade 110, and a fixed blade holder 120. The fixed blade 110 is installed at the end of the fixed blade holder 120, and... Located at one end of the housing 100, the moving blade 400 is disposed on one side of the fixed blade 110. The drive member 200 serves as the output end of the drive mechanism. The lower end of the drive member 200 is connected to the drive mechanism, and the upper end is connected to the moving blade holder 410. When the drive mechanism drives the moving blade holder 410 to reciprocate linearly, it drives the moving blade 400 to reciprocate linearly on one side of the fixed blade 110. The reciprocating moving blade 400 cooperates with the fixed blade 110 to achieve hair trimming.

[0055] In the prior art, the function of the elastic element 300 is to keep the moving blade 400 and the fixed blade 110 in close contact. Most existing elastic elements 300 are torsion springs 310, with one end of the torsion spring 310 mounted on the fixed blade holder 120 and the other end mounted on the moving blade holder 410, achieving elastic compression between the moving blade 400 and the fixed blade 110. In this embodiment, the moving blade holder 410, where the moving blade 400 is mounted, is directly and movably connected to the drive element 200, and the elastic element 300 is used to elastically compress the two. This has the following advantages:

[0056] 1. Because the moving blade 400 is directly connected to the drive component 200, and the two are elastically tensioned by the elastic element 300, the three components move synchronously when the drive component 200 is displaced. This effectively avoids direct contact between the torsion spring 310 and the fixed blade holder 120, thus preventing wear at the connection between the fixed blade holder 120 and the torsion spring 310. This extends the product's service life and avoids the unstable oscillation of the moving blade 400 caused by the wobbling gap due to wear at the connection between the fixed blade holder 120 and the torsion spring 310 in traditional hair clippers. This makes the moving blade 400 run more smoothly and prevents it from exceeding the edge of the fixed blade 110 during reciprocating linear motion, which could cause injury. This effectively improves the product's safety. At the same time, the elimination of the wobbling gap between the components also makes the product relatively quieter during operation.

[0057] 2. In this embodiment, the elastic element 300 only provides elastic tension between the moving tool holder 410 and the driving element 200. The spring 320 does not deform or twist, thereby eliminating the metal fatigue caused by the long-term swinging and twisting of the torsion spring 310, effectively improving the durability of the torsion spring 310. At the same time, the driving element 200 and the moving tool holder 410 are not subjected to alternating stress during product operation, completely solving the problem of the impact of wear, breakage or failure of these parts on service life, and greatly improving the product life.

[0058] In this embodiment, the movable tool holder 410 and the movable blade 400 can be integrally formed or detachably connected. Preferably, they are detachably installed on one side of the movable tool holder 410. Specifically, an assembly post 412 can be provided on the movable tool holder 410, and a corresponding through hole can be provided on the movable blade 400. The assembly post 412 is inserted into the through hole to achieve the detachable combination of the two.

[0059] In this embodiment, the driving component 200 includes a main body 201 connected to the driving mechanism and a driving head 202 disposed on the main body 201 and movably connected to the moving blade holder 410. The two are bent together, which has the following advantages: it makes a certain angle between the moving blade 400 on the moving blade holder 410 and the housing 100, so that when a person holds the hair clipper, the moving blade 400 is in a position that is easy to fit against the surface of the human skin, making it convenient for the person to operate and use the hair clipper.

[0060] To further limit the direction of movement between the movable tool holder 410 and the drive member 200 after assembly, and to avoid wear and noise caused by unfavorable loosening or swaying in the elastic tension direction of the non-elastic member 300, in this embodiment, the tool head stabilizer also includes a guide limiting mechanism, which acts between the drive member 200 and the movable tool holder 410 to limit or eliminate unfavorable displacement swaying in the non-elastic tension direction between them.

[0061] As one embodiment of the guide and limit mechanism, it includes a guide structure and a limit structure. The limit structure is used to eliminate the assembly clearance of the movable tool holder 410 and the drive member 200 along the moving direction of the movable blade 400, and the guide structure is used to guide the movable tool holder 410 and the drive member 200 to move in the elastic tension direction of the elastic member 300.

[0062] Specifically, refer to Figure 2 , 34 and 5, the limiting mechanism includes two mounting ears 415 on one side of the moving tool holder 410, and an accommodating space is formed between adjacent mounting ears 415. The corresponding drive head 202 is inserted into the accommodating space. Since the drive component 200 is restricted by the mounting ears 415 along the reciprocating direction of the moving tool holder 410, the drive head 202 drives the moving tool holder 410 to reciprocate, and the two maintain synchronous movement. This avoids unnecessary shaking and noise caused by assembly clearance between the two during product operation, effectively improving product life and noise reduction effect.

[0063] Based on the above embodiments, referring to Figure 4 The guide structure includes a guide groove 413 provided on the mounting ear 415 along the elastic tension direction of the elastic member 300. The drive head 202 is provided with guide rods 230 on both sides that can slide linearly in the guide groove 413. When the drive head 202 is inserted into the receiving space, since the guide rods 230 are slidably provided in the guide groove 413, their movement trajectory is limited to the opening direction of the guide groove 413. That is, the moving tool holder 410 is only subjected to the elastic force of the elastic member 300 toward the fixed blade 110, and there will be no shaking or deviation in the adverse direction, which effectively improves the wear resistance of the product parts and reduces the operating noise of the product.

[0064] In this embodiment, due to the sliding fit between the guide groove 413 and the guide rod 230, the moving tool holder 410 and the drive head 202 are always connected. That is, the guide structure also has an anti-detachment function, which avoids the situation where the moving tool holder 410 and the drive head 202 are accidentally separated after being combined, effectively improving the integration of product components.

[0065] In this embodiment, refer to Figure 4 and 5 The elastic element 300 can be a spring 320, a compression spring, or a torsion spring 310, or other elastic elements 300, as long as they can apply elastic tension to the drive head 202 and the moving blade holder 410 so that the moving blade 400 can fit against the fixed blade 110. In this embodiment, the torsion spring 310 is used as an example to illustrate the structural connection relationship between the elastic element 300 and the drive head 202 and the moving blade holder 410.

[0066] In this embodiment, refer to Figure 5 , 67. The torsion spring 310 includes a spring coil 311 and two torsion arms extending from the spring coil 311, with a certain included angle between the two torsion arms. The spring coil 311 is mounted on the drive head 202, and the two torsion arms are respectively connected to the main body 201 and the moving tool holder 410. For ease of description, the torsion arm in contact with the moving tool holder 410 is referred to as the first torsion arm 312, and the one in contact with the drive head 202 is referred to as the second torsion arm 313. The drive head 202 is provided with an assembly groove 211 for accommodating the spring coil 311 and a connecting groove 212 that forms an insertion fit with the first torsion arm 312. The moving tool holder 41... The side of the blade 0 is located in the limiting groove 414 that cooperates with the second torsion arm 313. When the moving blade holder 410, the torsion spring 310 and the drive head 202 are combined, the spring ring 311 is correspondingly accommodated in the assembly groove 211, the end of its first torsion arm 312 is inserted into the connecting groove 212, and the end of the second torsion arm 313 is pressed against the limiting groove 414. Thus, through the elastic force of the torsion spring 310, the moving blade 400 on the moving blade holder 410 is always in contact with the fixed blade 110, effectively ensuring the tightness of the connection between the moving blade 400 and the fixed blade 110.

[0067] In this embodiment, refer to Figure 6 and 7 The end of the drive head 202 is formed with a connector 220. The moving tool holder 410 is provided with a connecting hole 411 between the two mounting ears 415 to be adapted to the connector 220 for insertion. When the drive head 202 and the moving tool holder 410 are inserted and combined, the connector 220 is inserted into the connecting hole 411 to facilitate the assembly of the two. At the same time, the insertion of the connector 220 into the connecting hole 411 also facilitates the guidance and limitation of the movement direction between the moving tool holder 410 and the drive head 202.

[0068] Furthermore, a limiting edge 416 is provided at the bottom of the moving tool holder 410 located at the connection hole 411, so that after the driving head 202 is inserted into the connection hole 411 through the connector 220, the limiting edge 416 abuts against the driving head 202, thereby limiting the stroke of the two insertion.

[0069] In this embodiment, the connecting hole 411 is a rectangular hole, square hole, or other hole shape that penetrates the moving tool holder 410. The shape of the connector 220 is adapted to the shape of the connecting hole 411. To avoid excessive displacement of the connector 220 along the insertion direction of the connecting hole 411, and to prevent excessive separation between the moving tool holder 410 and the drive head 202 under the elastic tension of the elastic element 300, which would affect the assembly of subsequent components, the top wall of the connecting hole 411 (refer to...) Figure 7 Both the top of the connector 220 and the top of the connector 220 are provided with limiting protrusions 250 (see reference). Figure 6In this way, when the elastic element 300 is elastically loaded on the drive head 202 and the moving tool holder 410, after the connector 220 moves a certain distance in the connecting hole 411, the two limiting protrusions 250 abut against each other, which can prevent the connector 220 from being excessively displaced in the connecting hole 411, so as to facilitate the subsequent assembly of components.

[0070] In this embodiment, refer to Figure 6 and 7 In order to reduce the contact friction between the connector 220 and the connecting hole 411, and thus reduce the frictional loss between the drive head 202 and the moving tool holder 410, contact protrusions 240 are provided on the front and rear sides of the connector 220. The connector 220 abuts against the inner wall of the connecting hole 411 through the contact protrusions 240, thereby reducing the contact surface between the components and achieving the effect of reducing wear.

[0071] Reference Figure 8 and 9 As a second embodiment of the guide and limit mechanism, refer to Figure 8 The limiting structure includes a guide groove 262 and a guide rib 430 that slides linearly along the guide groove 262. The guide rib 430 is provided on either side of the moving tool holder 410 and the drive head 202, and the guide groove 262 is provided on the other side. In this embodiment, the guide rib 430 is provided on one side of the moving tool holder 410 and the guide groove 262 is provided at one end of the drive head 202 as an example for the description.

[0072] In this embodiment, the end of the drive head 202 is provided with a mounting plate 260, and a guide groove 262 is correspondingly opened at the center position on one side of the mounting plate 260. When the moving 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 moving tool holder 410 and the mounting plate 260 are restricted from moving along the reciprocating movement direction of the moving tool holder 410. The moving tool holder 410 and the drive head 202 can only be displaced relative to each other along the insertion direction. The elastic element 300 is elastically loaded between the two, applying an elastic force to the two so that the moving blade 400 on the moving tool holder 410 is always attached to one side of the fixed blade 110.

[0073] In this embodiment, the elastic element 300 is preferably a spring 320. Correspondingly, in order to facilitate the concealment of the spring 320, improve the product's aesthetics and optimize its structure, a mounting hole 261 is provided on one side of the mounting plate 260. The spring 320 can be placed in the mounting hole 261 to conceal and protect the spring 320 while improving the product's aesthetics and optimizing its size.

[0074] In this embodiment, refer to Figure 9Alternatively, a blind hole 420 can be provided on the side of the moving tool holder 410 corresponding to the position of the spring 320 to limit the connection end between the spring 320 and the moving tool holder 410.

[0075] In this embodiment, the guide structure includes dials 263 on both sides of the mounting plate 260, and a corresponding slot 440 is provided on one side of the movable tool holder 410. As shown in the first embodiment above, a corresponding mounting ear 415 is also provided on one side of the movable tool holder 410. The slot 440 can be formed on the mounting ear 415 to facilitate the assembly between the movable tool holder 410 and the drive head 202. In this way, the dials 263 slide relative to each other in the slot 440, thereby limiting the direction of movement between the movable tool holder 410 and the drive head 202 to the elastic extension direction of the spring 320.

[0076] As a third embodiment of the guide and limit mechanism, in the above embodiments, the guide and limit mechanism is composed of two parts: a guide structure and a limit structure. It is conceivable that as long as the direction of movement between the moving tool holder 410 and the drive head 202 can be limited to the elastic tension direction of the elastic member 300, thereby eliminating movement in other unfavorable directions between the moving tool holder 410 and the drive head 202, the guide structure and the limit structure can also be integrated together, as shown in the reference... Figure 10 and 11 The drive head 202 has a insertion hole 2021 at its end, and the moving tool holder 410 has a rod 4101 on its side. The rod 4101 is movably inserted into the insertion hole 2021. The elastic element 300 is correspondingly provided on the bottom of the insertion hole 2021 and the end of the rod 4101 away from the moving tool holder 410. By using the insertion of the rod 4101 into the insertion hole 2021, the movement direction of the moving tool holder 410 and the drive head 202 is limited, and the swaying of the two along the reciprocating linear motion direction of the moving blade 400 is eliminated. The structure is simpler and the assembly of the components is relatively more convenient.

[0077] In this embodiment, a spline fit is preferably used between the insertion rod 4101 and the insertion hole 2011, as shown in the reference. Figure 10 That is, the cross-section of the insertion rod 4101 is an irregular circle to avoid circumferential rotation along the axis of the two after they are inserted.

[0078] In this embodiment, to prevent the insertion rod 4101 from detaching from the insertion hole 2021, the two ends of the spring 320 can be fixed to the bottom of the insertion hole 2021 and the end of the insertion rod 4101, respectively. Alternatively, anti-detachment rings can be provided on the outer periphery of the end of the insertion rod 4101 and the inner wall of the insertion hole 2021. The anti-detachment rings can be used to limit the maximum displacement distance of the insertion rod 4101 within the insertion hole 2021.

[0079] Reference Figure 12 and 13As the power source for the linear reciprocating oscillation of the driving component, the drive mechanism is only briefly described here due to the reference to an online patent application. The drive mechanism includes two guide rails 540 disposed within the housing 100, and the main body 210 is slidably disposed on the guide rails 540. The guide rails 540 are driven by a power unit disposed within the housing 100 to move linearly reciprocally along the direction of the guide rails 540. The power unit includes 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 two ends of the connecting seat 520 are respectively provided with two shaft holes. One shaft hole 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 rail 540 by the rotation of the motor 510, and through the eccentric shaft 550, the connecting seat 520 and the connecting shaft 530, so as to realize the reciprocating action of the moving tool holder 410 on one side of the fixed blade 110.

[0080] In this embodiment, the driving mechanism can also be other structures. For example, the guide rail 540 is provided with a reciprocating thread, and its two ends are rotatably connected to the housing 100. The guide rail 540 is rotated by the motor 510, and the main body 201 is provided with a reciprocating thread hole that forms a sliding fit with the guide rail 540. In this way, the linear movement of the driving component 200 can also be realized by using a reciprocating thread fit. Of course, the driving mechanism can also be other implementation methods, which will not be described in detail here.

[0081] Although the preferred embodiments of the present invention have been described in detail above, it should be clearly understood that various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tool bit stabilizer comprising a tool holder for a tool bit and a drive member for driving the tool holder to reciprocate linearly, characterized in that, The movable cutter holder is movably connected to the driving member, and an elastic member is arranged between the movable cutter holder and the driving member to elastically tension the movable cutter holder and the driving member.

2. A shank stabilizer according to claim 1, wherein The movable cutter holder and the driving member are further provided with a guide limiting mechanism for limiting the moving direction of the movable cutter holder and the driving member to the elastic tensioning direction of the elastic member.

3. A shank stabilizer according to claim 2, wherein The guide limiting mechanism comprises a limiting structure and a guide structure, the limiting structure is used to eliminate the assembly play of the movable cutter holder and the driving member in the moving direction of the movable cutter blade, and the guide structure is used to guide the movable cutter holder and the driving member to move in the elastic tensioning direction of the elastic member.

4. A shank stabilizer according to claim 3, wherein The limiting structure comprises at least two mounting ears arranged on one side of the movable cutter holder, and a receiving space is formed between adjacent mounting ears, and one end of the driving member is correspondingly inserted into the receiving space to eliminate the assembly play of the movable cutter holder and the driving member in the moving direction of the movable cutter blade.

5. A shank stabilizer according to claim 4, wherein The guide structure comprises a guide groove arranged on the mounting ear, and a guide rod is arranged on the side surface of the driving member, and when the driving member is connected to the movable cutter holder, the guide rod is correspondingly and slidingly arranged in the guide groove.

6. A shank stabilizer according to any one of claims 1-5, wherein, The movable cutter holder is provided with a connecting hole, and one end of the driving member is correspondingly inserted into the connecting groove to be connected to the movable cutter blade.

7. A shank stabilizer according to claim 6, wherein The driving member comprises a connecting head which is inserted into the connecting hole, and a contact protrusion is arranged on the side surface of the connecting head.

8. A shank stabilizer according to claim 7, wherein Anti-disengagement protrusions are arranged on the inner walls of the connecting head and the connecting hole in the insertion direction of the connecting head and the connecting hole.

9. A shank stabilizer according to claim 3 wherein, The limiting structure comprises a guide groove and a guide rib which linearly slides in the guide groove, and the guide rib is arranged on any one of the adjacent side surfaces of the movable cutter holder and the driving member, and the other is provided with the guide groove.

10. A shank stabilizer according to claim 9, wherein The guide structure comprises a slot arranged on one side of the movable cutter holder, and a knob is arranged on the driving member and can move in the slot.

11. A shank stabilizer according to claim 9, wherein The driving member comprises a main body connected to the driving mechanism and a driving head movably connected to the movable cutter holder arranged on the main body, and the driving head is provided with a mounting hole on the side surface thereof facing the movable cutter holder, and the elastic member is correspondingly hidden in the mounting hole.

12. A shank stabilizer according to claim 11, wherein The end of the driving head is provided with a mounting plate, and the guide groove is formed on the side surface of the mounting plate.

13. The blade holder stabilizer of claim 1, wherein, The elastic member is any one of a spring, a torsion spring and a compression spring.

14. A hair clipper characterized by The hair clipper comprises a housing, a fixed cutter blade arranged on the end of the housing, a driving mechanism and the cutter head stabilizer of any one of claims 1-13, the movable cutter blade is correspondingly arranged on one side of the fixed cutter blade, the driving mechanism is arranged in the housing and is used to drive the driving member to reciprocatingly linearly move.

Citation Information

Patent Citations

  • Cutter head sliding mechanism, reciprocating driving mechanism and hair clipper thereof

    CN119036520A

  • Blade assembly of shaver

    CN220348463U