Reciprocating type shaver with all-directional floating effect

By employing a metal spring and fulcrum design in the shaver, omnidirectional floating of the shaver is achieved, solving the problem of only 2D floating in existing technologies and improving shaving effect and comfort.

CN224210002UActive Publication Date: 2026-05-08WENZHOU LANGCHI IND CORP LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WENZHOU LANGCHI IND CORP LTD
Filing Date
2025-06-12
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing reciprocating electric shavers can only achieve 2D floating, making it difficult to achieve an all-around floating effect.

Method used

A metal spring sheet is used as a support and fixing base. The fixing base and the metal spring sheet are rotatably matched by a fulcrum shaft. Combined with a floating cutter head, it can achieve omnidirectional floating.

Benefits of technology

It achieves omnidirectional floating of the shaver head, improving shaving performance and comfort.

✦ Generated by Eureka AI based on patent content.

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Abstract

A reciprocating type shaver with an all-directional floating effect comprises a handle assembly, and one end of the handle assembly is provided with a mounting cavity and a metal elastic piece; the fixing seat comprises a fixing frame and a driving assembly, supporting arms are symmetrically arranged on the two sides of the fixing frame, through grooves are formed in the fixing frame, fulcrum shafts are arranged between the metal elastic pieces and the supporting arms, and the fixing seat is fixedly connected with the handle assembly only through the fulcrum shafts; elastic pieces are arranged among the tool bit assembly, the fixing base and the handle assembly, the driving assembly comprises a driving main frame and a driving sub frame which are arranged side by side, the bottom of the driving main frame is in linkage with an eccentric wheel of the motor, and buffering arms are arranged on the two sides of the driving main frame and the two sides of the driving sub frame. The metal elastic piece is used as a structure for supporting the fixing base, meanwhile, the supporting point shaft is used for achieving rotatable matching of the fixing base and the metal elastic piece, when the tool bit assembly is stressed, the tool bit assembly can swing in the left-right direction relative to the metal elastic piece, meanwhile, the supporting point shaft can rotate front and back relatively, and then all-directional floating is achieved in combination with the floating tool bit.
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Description

Technical Field

[0001] This utility model relates to personal care devices, specifically to a reciprocating shaver with an all-around floating effect. Background Technology

[0002] A reciprocating electric shaver pushes the inner blade against the inner surface of the outer blade, which has a roughly inverted U-shaped cross-section, while the inner blade reciprocates, shaving off the hairs that have entered the slits on the outer blade.

[0003] Reciprocating electric shavers typically use an upward-pushing spring on the inner blade to achieve head floating, meaning they can only achieve 2D floating, while reciprocating shavers achieve omnidirectional floating. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a reciprocating shaver with an all-round floating effect.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A reciprocating razor with an all-around floating effect.

[0007] A handle assembly has a mounting cavity at one end, a motor is provided inside the handle assembly, and the motor shaft of the motor is located inside the mounting cavity, and metal springs are symmetrically arranged inside the mounting cavity;

[0008] A fixed base includes a fixed frame, in which a drive assembly capable of reciprocating motion driven by a motor is provided. Support arms are symmetrically arranged on both sides of the fixed frame, and a through groove is provided on the inner side of the corresponding support arm of the fixed frame for a metal spring to pass through. A fulcrum shaft is provided between the metal spring and the support arm, and the fixed base and the handle assembly are fixedly connected only through the fulcrum shaft.

[0009] The cutter head assembly magnetically engages with the fixed base, and the cutter head assembly includes a cutter holder and several sets of floating cutter groups disposed within the cutter holder.

[0010] An elastic element is provided between the fixed base and the handle assembly. The elastic element is located near the metal spring. The drive assembly includes two drive main frames and drive sub-frames arranged side by side. The bottom of the drive main frame is linked to the eccentric wheel of the motor. Both sides of the drive main frame and the drive sub-frame are provided with U-shaped buffer arms, and one end of the buffer arm is fixedly connected to the fixed frame. The drive main frame and the drive sub-frame are linked by a rocker arm.

[0011] Both the main drive frame and the sub-drive frame are equipped with a first drive component for driving the reciprocating motion of the inner cutter.

[0012] A detachable second drive component is provided on one side of the first drive component of the drive main frame or drive subframe.

[0013] The first driving component has slots on both sides of its bottom, and the second driving component has a corresponding buckle at its bottom that can engage with the slots.

[0014] The drive main frame and drive sub-frame are provided with positioning grooves, and the two ends of the rocker arm extend downward to form positioning shafts, which respectively cooperate with the positioning grooves.

[0015] The metal spring is L-shaped, and its bottom is fixedly connected to the handle assembly by screws.

[0016] The metal spring has a positioning hole at its bottom, and the handle has a corresponding first positioning pin.

[0017] The bottom of the fixed base is provided with a second positioning pin corresponding to the first positioning pin, and the elastic element is a spring, with its two ends connected to the first positioning pin and the second positioning pin respectively.

[0018] The width of the through groove is greater than the thickness of the spring sheet.

[0019] One side of the handle assembly is provided with a sideburn trimmer holder, and the sideburn trimmer holder is provided with a sideburn trimmer and a push button that are hinged to the sideburn trimmer holder. An eccentric wheel that is linked to the drive shaft of the motor is provided with a drive rod for driving the sideburn trimmer. The sideburn trimmer has a first position in which it is in a state of disengagement from the drive rod when it is in contact with the sideburn trimmer holder, and a second position in which it is in a state of linkage with the drive rod when it is at an angle to the sideburn trimmer holder. The push button drives the sideburn trimmer to switch between the first position and the second position.

[0020] The beneficial effects of this utility model are as follows: This application uses a metal spring sheet as a support and fixing seat structure, and uses a fulcrum shaft to realize the rotatable cooperation between the fixing seat and the metal spring sheet. When the cutter head assembly is subjected to force, it can swing in the left and right direction relative to the metal spring sheet, and can also rotate in the front and back direction relative to the fulcrum shaft, thereby achieving all-round floating in combination with the floating cutter head. Attached Figure Description

[0021] Figure 1 This is an exploded view of the present invention.

[0022] Figure 2 This is a cross-sectional schematic diagram of the present invention.

[0023] Figure 3 This is a schematic diagram of the handle assembly of this utility model.

[0024] Figure 4 This is a schematic diagram of the structure of the fixing base of this utility model.

[0025] Figure 5This is a schematic diagram of the bottom of the fixing base of this utility model.

[0026] Figure 6 This is a schematic diagram of the drive component of this utility model.

[0027] Figure 7 This is a schematic diagram of the sideburn clipper holder of this utility model.

[0028] Figure 8 This is a schematic diagram of the bottom of the sideburn trimmer and push button of this utility model.

[0029] Figure 9 This is an exploded view of the sideburn clipper holder, sideburn clipper, and push button of this utility model. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0032] like Figure 1 and Figure 2 As shown, this utility model discloses a reciprocating shaver with an all-around floating effect, which includes a handle assembly 100, a fixed base 200 and a blade assembly 300. The blade assembly 300 is detachably connected to the fixed base, preferably by magnetic attraction, while the fixed base is floatingly connected to the handle assembly, thereby allowing it to swing relatively left and right or back and forth.

[0033] like Figure 3 As shown, the handle assembly 100 has a chamber and a mounting cavity 110. The chamber houses components such as a motor 400, a control board, and a battery. The mounting cavity is isolated from the chamber. The motor shaft of the motor 400 is located within the mounting cavity 110, and an eccentric wheel 410 is mounted on the motor shaft. Metal springs 120 are symmetrically arranged on both sides of the eccentric wheel 410 within the mounting cavity 110. The metal springs 120 are fixedly connected to the handle assembly. In this embodiment, the metal springs 120 are L-shaped, and their bottoms are fixedly connected to the handle assembly 100 by screws.

[0034] The metal spring is used as a support component, utilizing the elastic force of the metal spring itself. It is fixed in contact with the fixed base and can then swing left and right relative to the metal spring.

[0035] like Figure 4 and Figure 5 As shown, the fixed base 200 includes a fixed frame, in which a drive assembly 500 driven by a motor for reciprocating motion is provided. Support arms 210 are symmetrically arranged on both sides of the fixed frame, and a through groove 250 is provided on the inner side of the support arm 210 corresponding to the fixed frame for a metal spring 120 to pass through. A fulcrum shaft 600 is provided between the metal spring 120 and the support arm 210, and the fixed base and the handle assembly are fixedly connected only through the fulcrum shaft. The fixing frame is composed of an upper frame 220 and a bottom cover 240, which together form a space to accommodate the drive component. Both are provided with through slots and are fixedly connected by screws. The inner side of the support arm is provided with a groove. The metal spring passes through the through slot and is placed in the groove. The two are fixedly connected by a fulcrum shaft. One end of the fulcrum shaft is limited to the support arm and then passes through the support arm and the metal spring in sequence. It is then restricted from falling out by a retaining ring, so that there is a certain gap between the metal spring and the support arm, which allows the fixing seat to swing relative to each other. An elastic element, such as a spring, is provided between the fixing seat and the handle assembly, so that the fixing seat can return to its relative position.

[0036] The cutter head assembly 300 is magnetically attached to the fixed base, and the cutter head assembly 300 includes a cutter holder and several sets of floating cutter groups 700 disposed in the cutter holder, and the floating cutter groups 700 are used to realize the floating between the cutter groups.

[0037] An elastic element is provided between the fixed base 200 and the handle assembly 300, and the elastic element is positioned close to the metal spring 120, such as... Figure 6 As shown, the drive assembly 500 includes two drive main frames 510 and drive sub-frames 520 arranged side by side. The bottom of the drive main frame 510 is linked to the eccentric wheel 410 of the motor. Both sides of the drive main frame 510 and the drive sub-frame 520 are provided with U-shaped buffer arms 511, and one end of the buffer arm 511 is fixedly connected to the fixed frame. The drive main frame 510 and the drive sub-frame 520 are linked by a rocker arm 550. The outer arm of the buffer arm is a thin arm, which gives it a certain deformation capability. Furthermore, the drive main frame is driven to reciprocate by the eccentric wheel, while the rocker arm drives the drive sub-frame to move in the opposite direction.

[0038] Both the main drive frame 510 and the drive sub-frame 520 are provided with a first drive member 530 for driving the inner blade to reciprocate. The first drive member 530 is a transmission rod integrally formed on the main drive frame or the drive sub-frame.

[0039] A detachable second drive component 540 is provided on one side of the first drive component 530 of the drive main frame or drive sub-frame. In order to accommodate different numbers of floating blade groups, it is preferable to group two blade groups together, and then use the second drive component to move synchronously with one of the first drive components to drive the two floating blade groups. Moreover, the connection between the two is reliable. In this embodiment, the bottom sides of the first drive component 530 are provided with slots, and the bottom of the second drive component is provided with corresponding buckles that can engage with the slots. The second drive component is connected to the first drive component by means of buckling. Space needs to be left between the two first drive components to accommodate the second drive component.

[0040] The drive main frame and drive sub-frame are provided with positioning grooves 512. The two ends of the rocker arm extend downward to form positioning shafts. The positioning shafts cooperate with the positioning grooves 512 respectively. By utilizing the cooperation between the positioning shafts and the positioning grooves, the drive sub-frames are synchronously driven to move in opposite directions when the drive main frame moves. At the same time, the positioning grooves are strip grooves, which allow them to swing relative to each other.

[0041] The rocker arm has a through hole at its center and a rotating shaft at the bottom of the upper frame. The through hole of the rocker arm is adapted to the rotating shaft, so that the rocker arm can rotate relative to the shaft, thereby allowing the rocker arm to transmit the driving action of the driver to the drive subframe.

[0042] The metal spring has a positioning hole at its bottom, and a corresponding first positioning pin 130 is provided on the handle. The bottom of the fixing base has a second positioning pin 260 corresponding to the first positioning pin 130. The elastic element is a spring, and its two ends are connected to the first and second positioning pins respectively. The first positioning pin serves to position the metal spring and, in conjunction with the second positioning pin, restricts the spring, ensuring that it does not shift during deformation.

[0043] The width of the through groove 250 is greater than the thickness of the spring sheet, allowing the metal spring sheet to change position relative to each other within the through groove.

[0044] like Figure 7 , Figure 8 Right now Figure 9 As shown, a sideburn clipper holder 800 is provided on one side of the handle assembly. A sideburn clipper 810 and a push button 820 are hinged and disposed within the sideburn clipper holder 800. An eccentric wheel linked to the drive shaft of the motor is provided with a drive rod 900 for driving the sideburn clipper. The sideburn clipper has a first position in which it is disengaged from the drive rod when it is in contact with the sideburn clipper holder, and a second position in which it is linked with the drive rod when it is at an angle to the sideburn clipper holder. The push button drives the sideburn clipper to switch between the first position and the second position.

[0045] The sideburn trimmer includes a sideburn trimmer holder 813, a stationary blade fixed on the sideburn trimmer holder, a moving blade attached to the stationary blade, and a drive plate. The rear end of the drive plate is provided with a locking slot that is linked to a drive rod. When the sideburn trimmer is in the first position, the locking slot does not engage with the drive rod. Only when the sideburn trimmer switches from the first position to the second position does the drive rod engage with the locking slot, forming a linkage. Furthermore, the sideburn trimmer holder is also provided with a pressure plate for fixing the moving blade, the stationary blade, and the drive plate. The sideburn trimmer holder is provided with hinge shafts 812 on both sides, which are hinged to the sideburn trimmer base. At the same time, the rear end of the push button is provided with a linkage shaft that is linked to the sideburn trimmer holder. When it slides, it will drive the sideburn trimmer holder to rotate relative to the hinge shaft, thereby achieving position switching.

[0046] Meanwhile, the bottom of the push button is provided with a sliding buckle 821, and the sideburn cutter seat is provided with a sliding groove 801 that matches the sliding buckle 821. The sliding groove is provided with a position groove, and the corresponding sliding buckle is provided with a position rib on one side. The two work together to realize the position indication of the first and second positions of the sideburn cutter.

[0047] The embodiments should not be regarded as limitations on the present invention, but any improvements made based on the spirit of the present invention should be within the protection scope of the present invention.

Claims

1. A reciprocating shaver with an omnidirectional floating effect, characterized in that: A handle assembly (100) has a mounting cavity (110) at one end. A motor (400) is provided inside the handle assembly, and the motor shaft of the motor (400) is located inside the mounting cavity (110). Metal springs (120) are symmetrically arranged inside the mounting cavity (110). The fixed base (200) includes a fixed frame, in which a drive assembly (500) driven by a motor to reciprocate is provided. Support arms (210) are symmetrically provided on both sides of the fixed frame, and a through groove (250) is provided on the inner side of the corresponding support arm (210) of the fixed frame for a metal spring (120) to pass through. A fulcrum shaft (600) is provided between the metal spring (120) and the support arm (210), and the fixed base and the handle assembly are fixedly connected only through the fulcrum shaft. The cutter head assembly (300) is magnetically engaged with the fixed base, and the cutter head assembly (300) includes a cutter holder and several sets of floating cutter groups (700) disposed within the cutter holder. An elastic element is provided between the fixed base (200) and the handle assembly (100). The elastic element is located near the metal spring (120). The drive assembly (500) includes two drive main frames (510) and drive sub-frames (520) arranged side by side. The bottom of the drive main frame (510) is linked to the eccentric wheel (410) of the motor. Both sides of the drive main frame (510) and the drive sub-frame (520) are provided with U-shaped buffer arms (511), and one end of the buffer arm (511) is fixedly connected to the fixed frame. The drive main frame (510) and the drive sub-frame (520) are linked by a rocker arm (550).

2. A reciprocating shaver with an omnidirectional floating effect according to claim 1, characterized in that: Both the main drive frame (510) and the drive subframe (520) are equipped with a first drive component (530) for driving the inner blade to reciprocate.

3. A reciprocating shaver with an omnidirectional floating effect according to claim 2, characterized in that: A detachable second drive unit (540) is provided on one side of the first drive unit (530) of the drive main frame or drive subframe.

4. A reciprocating shaver with an omnidirectional floating effect according to claim 3, characterized in that: The first driving member (530) has slots on both sides of its bottom, and the bottom of the second driving member has a corresponding buckle that can engage with the slots.

5. A reciprocating shaver with an omnidirectional floating effect according to claim 1, characterized in that: The drive main frame and drive sub-frame are provided with positioning grooves (512), and the two ends of the rocker arm extend downward to form positioning shafts, which respectively cooperate with the positioning grooves (512).

6. A reciprocating shaver with an omnidirectional floating effect according to claim 1, characterized in that: The metal spring (120) is L-shaped, and its bottom is fixedly connected to the handle assembly (100) by screws.

7. A reciprocating shaver with an omnidirectional floating effect according to claim 6, characterized in that: The metal spring has a positioning hole at its bottom, and the handle has a corresponding first positioning pin (130).

8. A reciprocating shaver with an omnidirectional floating effect according to claim 7, characterized in that: The bottom of the fixed base is provided with a second positioning pin (260) corresponding to the first positioning pin (130). The elastic element is a spring, and its two ends are respectively connected to the first positioning pin and the second positioning pin.

9. A reciprocating shaver with an omnidirectional floating effect according to claim 1, characterized in that: The width of the through groove (250) is greater than the thickness of the spring sheet.

10. A reciprocating shaver with an omnidirectional floating effect according to claim 1, characterized in that: The handle assembly has a sideburn cutter holder (800) on one side. The sideburn cutter holder (800) has a sideburn cutter (810) hinged in the sideburn cutter holder and a push button (820). An eccentric wheel linked to the drive shaft of the motor has a drive rod (900) for driving the sideburn cutter. The sideburn cutter has a first position where it is in contact with the sideburn cutter holder and is in a state of disengagement from the drive rod, and a second position where it is in a state of linkage with the drive rod when there is an angle with the sideburn cutter holder. The push button drives the sideburn cutter to switch between the first position and the second position.