A reciprocating shaver

Abstract

This utility model belongs to the field of shaver technology, specifically relating to a reciprocating shaver, including a housing and a shaver head assembly. A motor, battery, and circuit board are respectively housed within the housing. A cam linkage mechanism is installed at the output end of the motor. The shaver head assembly includes a head cover bracket, which is located on the upper surface of the housing. A mesh frame is slidably mounted vertically within the head cover bracket, and a movable blade holder is slidably mounted horizontally within the mesh frame. The lower end of the movable blade holder is connected to the cam linkage mechanism, which converts the rotational motion of the motor into the linear reciprocating sliding motion of the movable blade holder. A metal cover plate is installed between the head cover bracket and the housing. This utility model, through the design of the cam linkage mechanism, converts the rotational motion of the motor into the linear reciprocating sliding motion of the movable blade holder, thereby achieving a shaving effect. The motor is vertically mounted within the body, and the space between the sides of the motor and the body is fully utilized for installing the battery and circuit board, reducing the overall size and making it more convenient to carry.

Description

Technical Field

[0001] This utility model relates to the field of razor technology, and specifically to a reciprocating razor. Background Technology

[0002] Electric shavers, including rotary and reciprocating shavers, are common grooming tools. A rotary shaver's head consists of rotating blades and a foil covering the outside of the rotating blades, while a reciprocating shaver's head consists of reciprocating blades and a foil covering the outside of the reciprocating blades. In both rotary and reciprocating shavers, the blades are the moving parts, and the foil is the fixed part. The shearing force generated between the blades and the foil cuts the hairs that enter the shaver head through the mesh of the foil, thus assisting the user in shaving.

[0003] For example, Chinese invention patent number CN202510654626.2 discloses a drive module for a reciprocating shaver, comprising: a base; a tilting frame, both ends of which are fixed to the base by spring pieces to form a frame structure; an output shaft mounted above the tilting frame; a motor, horizontally mounted on the base and located within the frame structure; a cam mounted on the power shaft of the motor, the surface of which has a groove with parallel and equal width of normal cross section along the circumferential direction; and a rocker arm, the lower end of which is hinged to the base, the middle of which has a rocker arm shaft assembled in the groove, and the upper end which is linked to the tilting frame.

[0004] The motor adopts a horizontal design, which increases the overall width and makes the transmission mechanism more complex and costly to manufacture. Furthermore, existing shavers usually require manual button pressing to start, so further structural improvements are needed. Utility Model Content

[0005] The purpose of this invention is to provide a reciprocating shaver that solves the problem of complex existing structures through a cam linkage mechanism.

[0006] The purpose of this utility model is achieved as follows: A reciprocating shaver includes a housing and a shaver head assembly. A motor, a battery, and a circuit board are respectively housed within the housing. A cam linkage mechanism is installed at the output end of the motor. The shaver head assembly includes a head cover bracket, which is located on the upper surface of the housing. A mesh frame is slidably mounted vertically within the head cover bracket, and a movable blade holder is slidably mounted horizontally within the mesh frame. The lower end of the movable blade holder is connected to the cam linkage mechanism, which converts the rotational motion of the motor into the linear reciprocating sliding motion of the movable blade holder. A metal cover plate is installed between the head cover bracket and the housing. A conductive post is provided on the lower surface of the metal cover plate, and the lower end of the conductive post is electrically connected to the circuit board via a signal line. A metal spring is installed within the mesh frame, and a through hole is provided in the head cover bracket for the metal spring to pass through, so that the lower end of the metal spring contacts the metal cover plate.

[0007] Preferably, the cam linkage mechanism includes a cam 1 mounted on the outer periphery of the motor output shaft, an eccentric shaft 1 disposed at the eccentric position of the cam 1, a connecting rod 1 and a cam 2 sequentially mounted on the outer periphery of the eccentric shaft 1, a swing frame 1 hinged to the other end of the connecting rod 1, an eccentric shaft 2 disposed at the eccentric position of the cam 2, a connecting rod 2 mounted on the outer periphery of the eccentric shaft 2, a swing frame 2 hinged to the other end of the connecting rod 2, elastic plates formed at both ends of the swing frame 2 and the swing frame 1 respectively, the elastic plates being fixedly connected to the housing by fasteners, and a swaying connector being mounted on the upper end of the swing frame 2 and the swing frame 1 respectively, the swaying connector being connected to the moving tool holder.

[0008] Preferably, the upper end of the sway connector is formed with a plug, and the lower end of the moving blade holder is provided with a plug cavity for the plug to be inserted.

[0009] Preferably, a motor bracket is provided inside the housing, and a motor mounting compartment, a battery mounting compartment and a circuit board mounting slot are respectively formed inside the motor bracket. A partition and a metal cover are fixed to the upper end face of the motor bracket in sequence.

[0010] Preferably, both the partition and the metal cover have through holes in their middle sections, and dust covers are installed inside the through holes.

[0011] Preferably, a magnet is provided between the partition and the metal cover, and a magnet is provided inside the head cover bracket.

[0012] Preferably, a top plate is installed on the lower end face of the mesh frame, a spring abuts between the moving knife holder and the top plate, and a spring two abuts between the top plate and the head cover bracket.

[0013] The outstanding and beneficial technical effects of this utility model compared to the prior art are: 1. This utility model uses a cam linkage mechanism to convert the rotational motion of the motor into the linear reciprocating sliding of the moving blade holder, thereby achieving a shaving effect. The motor is vertically mounted inside the body and makes full use of the space between the two sides of the motor and the body for installing the battery and circuit board, which reduces the overall size and makes it more convenient to carry.

[0014] 2. This utility model, through the design of a metal spring pin, ensures that during actual use, when the mesh on the mesh frame comes into contact with human skin, the mesh frame will be pressed and pushed, and a pulse signal will be continuously generated. This signal is transmitted to the circuit board through the metal spring pin, conductive post, and signal line. After receiving the signal, the circuit board automatically drives the motor to start working. After use, the spring force will cause the mesh frame to automatically reset. And after the skin leaves the contact of the mesh, the circuit board no longer receives the signal, and the motor automatically stops working, thus achieving an automated effect without the need for manual button pressing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the organism's structure.

[0016] Figure 2 This is a schematic diagram of the cutter head assembly.

[0017] Figure 3 Schematic diagram of the cam linkage mechanism Figure 1 .

[0018] Figure 4 Schematic diagram of the cam linkage mechanism Figure 2 .

[0019] Figure 5 This is a schematic diagram of the motor bracket.

[0020] Figure 6 This is a top view of the present invention.

[0021] Figure 7 for Figure 6 A schematic diagram of the cross-sectional structure at point AA.

[0022] Figure 8 for Figure 6 Schematic diagram of the cross-sectional structure at point BB.

[0023] Reference numerals: 1-Housing; 2-Cutter head assembly; 3-Motor; 4-Battery; 5-Circuit board; 6-Cam linkage mechanism; 7-Head cover bracket; 8-Mesh frame; 9-Moving cutter holder; 10-Metal cover plate; 11-Conductive post; 12-Signal line; 13-Metal spring pin; 14-Through hole; 15-Cam one; 16-Eccentric shaft one; 17-Linking rod one; 18-Cam two; 19-Swing frame one; 20-Eccentric shaft two; 21-Linking rod two; 22-Swing frame two; 23-Elastic plate; 24-Shaking connector; 25-Plug-in connector; 26-Plug-in cavity; 27-Motor bracket; 28-Motor mounting compartment; 29-Battery mounting compartment; 30-Circuit board mounting slot; 31-Partition plate; 32-Mounting hole; 33-Dust cover; 34-Magnet one; 35-Magnet two; 36-Top plate; 37-Spring one; 38-Spring two. Detailed Implementation

[0024] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0025] like Figure 1-8As shown, a reciprocating shaver includes a housing 1 and a shaver head assembly 2. A motor 3, a battery 4, and a circuit board 5 are respectively disposed inside the housing 1. A cam linkage mechanism 6 is installed at the output end of the motor 3. The shaver head assembly 2 includes a head cover bracket 7, which is disposed on the upper surface of the housing 1. A mesh frame 8 is slidably mounted vertically inside the head cover bracket 7, and a movable blade holder 9 is slidably mounted horizontally inside the mesh frame 8. The lower end of the movable blade holder 9 is connected to the cam linkage mechanism 6, which converts the rotational motion of the motor 3 into the linear reciprocating sliding motion of the movable blade holder 9. A metal cover plate 10 is installed between the head cover bracket 7 and the housing 1. A conductive post 11 is disposed on the lower surface of the metal cover plate 10, and the lower end of the conductive post 11 is electrically connected to the circuit board 5 via a signal line 12. A metal spring needle 13 is installed inside the mesh frame 8, and a through hole 14 is provided inside the head cover bracket 7 for the metal spring needle 13 to pass through, so that the lower end of the metal spring needle 13 contacts the metal cover plate 10.

[0026] This invention uses a cam linkage mechanism to convert the rotational motion of the motor 3 into the linear reciprocating sliding motion of the moving blade holder 9, thereby achieving a shaving effect. The motor 3 is vertically mounted inside the body and makes full use of the space between the sides of the motor and the body for installing the battery and circuit board, which reduces the overall size and makes it more convenient to carry.

[0027] This invention utilizes the design of the metal spring pin 13 to ensure that during actual use, when the mesh on the mesh frame 8 comes into contact with human skin, the mesh frame 8 will be pressed and pushed, continuously generating a pulse signal. This signal is transmitted to the circuit board 5 through the metal spring pin 13, metal cover plate 10, conductive post 11, and signal line 12. After receiving the signal, the circuit board 5 automatically drives the motor 3 to start working. After use, the spring force will cause the mesh frame 8 to automatically reset. Once the skin leaves the contact of the mesh, the circuit board 5 no longer receives the signal, and the automatic drive motor 3 stops working, thus achieving an automated effect without the need for manual button pressing.

[0028] In this invention, the signal triggering and control principle program and structure of the circuit board are existing technologies, and therefore will not be described in detail in this article.

[0029] The cam linkage mechanism 6 includes a cam 15 mounted on the outer periphery of the output shaft of the motor 3. An eccentric shaft 16 is provided at the eccentric part of the cam 15. A connecting rod 17 and a cam 18 are sequentially mounted on the outer periphery of the eccentric shaft 16. A swing frame 19 is hinged to the other end of the connecting rod 17. An eccentric shaft 20 is provided at the eccentric part of the cam 18. A connecting rod 21 is mounted on the outer periphery of the eccentric shaft 20. A swing frame 22 is hinged to the other end of the connecting rod 21. Elastic plates 23 are formed at both ends of the swing frame 22 and the swing frame 19. The elastic plates 23 are fixedly connected to the housing 1 by fasteners to improve their stability during reciprocating movement. A swaying connector 24 is installed at the upper end of the swing frame 22 and the swing frame 19. The swaying connector 24 is connected to the moving tool holder 9. This structure is simple and compact. One motor 3 can drive four sets of moving tool holders to move simultaneously through the cam linkage mechanism 6, resulting in high working efficiency.

[0030] The upper end of the sway connector 24 is formed with a plug 25, and the lower end of the moving blade holder 9 is provided with a plug cavity 26 for the plug 25 to be inserted. This structure makes it easy to disassemble and assemble the blade assembly and the housing, and facilitates the transmission of power.

[0031] The housing 1 is provided with a motor bracket 27, and the motor bracket 27 is respectively formed with a motor mounting compartment 28, a battery mounting compartment 29 and a circuit board mounting groove 30. The upper end face of the motor bracket 27 is fixed with a partition 31 and a metal cover plate 10 in sequence.

[0032] Both the partition plate 31 and the metal cover plate 10 have mounting holes 32 in the middle. Dust covers 33 are installed in the mounting holes 32 to effectively prevent dust and debris from entering the machine body and extend its service life.

[0033] A magnet 34 is provided between the partition 31 and the metal cover 10, and a magnet 35 is provided inside the head cover bracket 7. The magnetic design makes it easy to assemble and disassemble the two.

[0034] A top plate 36 is installed on the lower end face of the mesh frame 8. A spring 37 abuts between the moving knife holder 9 and the top plate 36, and a spring 38 abuts between the top plate 36 and the head cover bracket 7, which are used to provide support and reset effect.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A reciprocating razor, characterized in that, The device includes a housing (1) and a cutter head assembly (2). The housing (1) contains a motor (3), a battery (4), and a circuit board (5). A cam linkage mechanism (6) is installed at the output end of the motor (3). The cutter head assembly (2) includes a head cover bracket (7), which is located on the upper surface of the housing (1). A mesh frame (8) is slidably installed inside the head cover bracket (7). A movable cutter holder (9) is slidably installed inside the mesh frame (8). The lower end of the movable cutter holder (9) is connected to the cam linkage mechanism (6). The cam linkage mechanism (6) connects the motor... (3) The rotational motion is converted into the linear reciprocating sliding of the moving knife holder (9). A metal cover plate (10) is installed between the head cover bracket (7) and the shell (1). A conductive post (11) is provided on the lower end face of the metal cover plate (10). The lower end of the conductive post (11) is electrically connected to the circuit board (5) through the signal line (12). A metal spring needle (13) is installed in the mesh frame (8). A through hole (14) is opened in the head cover bracket (7) for the metal spring needle (13) to pass through, so that the lower end of the metal spring needle (13) contacts the metal cover plate (10).

2. The reciprocating razor according to claim 1, characterized in that: The cam linkage mechanism (6) includes a cam (15) installed on the outer periphery of the output shaft of the motor (3). An eccentric shaft (16) is provided at the eccentric part of the cam (15). A connecting rod (17) and a cam (18) are installed on the outer periphery of the eccentric shaft (16). A swing frame (19) is hinged to the other end of the connecting rod (17). An eccentric shaft (20) is provided at the eccentric part of the cam (18). A connecting rod (21) is installed on the outer periphery of the eccentric shaft (20). A swing frame (22) is hinged to the other end of the connecting rod (21). An elastic sheet (23) is formed at both ends of the swing frame (22) and the swing frame (19). The elastic sheet (23) is fixedly connected to the housing (1) by fasteners. A swaying connector (24) is installed at the upper end of the swing frame (22) and the swing frame (19). The swaying connector (24) is connected to the moving tool holder (9).

3. The reciprocating razor according to claim 2, characterized in that: The upper end of the sway connector (24) is formed with a plug (25), and the lower end of the moving knife holder (9) is provided with a plug cavity (26) for the plug (25) to be inserted.

4. The reciprocating razor according to claim 1, characterized in that: The housing (1) is provided with a motor bracket (27), and the motor bracket (27) is respectively formed with a motor mounting compartment (28), a battery mounting compartment (29) and a circuit board mounting groove (30). The upper end face of the motor bracket (27) is fixed with a partition (31) and a metal cover plate (10).

5. The reciprocating razor according to claim 4, characterized in that: The partition (31) and the metal cover (10) are both provided with mounting holes (32) in the middle, and dust covers (33) are installed in the mounting holes (32).

6. The reciprocating razor according to claim 4, characterized in that: A magnet (34) is provided between the partition (31) and the metal cover (10), and a magnet (35) is provided inside the head cover bracket (7).

7. The reciprocating razor according to claim 1, characterized in that: The lower end face of the mesh frame (8) is fitted with a top plate (36), and a spring (37) abuts between the moving knife frame (9) and the top plate (36), and a spring (38) abuts between the top plate (36) and the head cover bracket (7).

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