Tool bit transmission mechanism and reciprocating type shaver

Abstract

The utility model discloses a tool bit transmission mechanism and a reciprocating type shaver, and the tool bit transmission mechanism comprises a motor which is used for providing power; the eccentric part is in linkage connection with a motor shaft of the motor; the bottom of the main swing frame is in linkage connection with the eccentric part, the main swing frame can be driven by a motor to move in the length direction of the main swing frame, and a first linkage part used for driving the first tool bit assembly to act is arranged on the upper side of the main swing frame; the slave swing frame and the master swing frame are arranged side by side, and a second linkage piece used for driving the second tool bit assembly to act is arranged on the upper side of the slave swing frame; and the connecting rod is connected with the main swing frame and the auxiliary swing frame and drives the auxiliary swing frame to move towards the opposite side when the main swing frame moves towards any side. According to the shaver, the eccentric part is utilized, mutual reciprocating motion of the two swing frames is achieved through the connecting rod, the shaver is simple in structure, convenient to install and low in production cost, the small-size design of the shaver can be achieved, and the shaver is convenient to carry.

Description

Technical Field

[0001] The utility model specifically relates to a cutter head transmission mechanism and a reciprocating shaver. Background Art

[0002] A razor is a tool for shaving and is a self-service tool. Electric razors are divided into rotary razors and reciprocating razors according to the different shaving parts. The motor of a reciprocating razor has a high speed to provide strong power. The fast-rotating motor drives the swinging blade to shave the beard easily and quickly, and the swinging shaving part will not pull the beard like a rotary razor.

[0003] The existing reciprocating shavers use a motor to drive the corresponding swing frame to swing through multiple cams to achieve reciprocating motion. For example, Chinese patent CN220783992U discloses a reciprocating electric shaver, which clearly discloses in the attached drawings that two eccentric shafts 223 staggered up and down respectively drive the transverse movement body 224 of the transverse movement frame 229 to move to achieve reciprocating motion. Its transmission method is relatively complicated, which affects the assembly efficiency. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a cutter head transmission mechanism and a reciprocating shaver.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A cutter head transmission mechanism, comprising:

[0007] A motor for providing power;

[0008] An eccentric member, linked to a motor shaft of the motor;

[0009] The main swing frame is connected to the eccentric member at the bottom and can be driven by the motor to move along the length direction of the main swing frame. The upper side of the main swing frame is provided with a first linkage member for driving the first cutter head assembly to move.

[0010] A secondary swing frame is arranged side by side with the main swing frame, and a second linkage member for driving the second cutter head assembly to move is provided on its upper side;

[0011] A connecting rod connects the main swing frame and the slave swing frame, and when the main swing frame moves to either side, drives the slave swing frame to move to the opposite side.

[0012] The main swing frame and the slave swing frame both include a swing part, and the lower ends of the left and right sides of the swing part are provided with elastic sheets bent outward and upward, and the upper ends of the elastic sheets are provided with a fixing part bent outward.

[0013] At least one transmission part protruding upward is provided at the upper ends of the swing parts of the main swing frame and the slave swing frame, and the two transmission parts are connected by a connecting rod.

[0014] The transmission part is a convex block or a guide column with a first strip-shaped hole, and the bottom of the connecting rod is correspondingly provided with a guide column or a first strip-shaped hole matching with the first strip-shaped hole.

[0015] The lower end of the swing part of the main swing frame is provided with a linkage part which forms a linkage cooperation with the eccentric piece.

[0016] The linkage portion is provided with a second strip-shaped hole, and the eccentric shaft of the eccentric piece is inserted into the second strip-shaped hole.

[0017] An arc-shaped groove is provided at the connection between the elastic sheet and the fixing portion, and the opening of the arc-shaped groove is arranged downward.

[0018] The main swing frame and a linkage member extending upward from the center of the swing portion of the swing frame are used to cooperate with the cutter head assembly.

[0019] A limiting member extending toward the slave swing frame or the main swing frame is provided on one side of the main swing frame or the slave swing frame.

[0020] A reciprocating shaver comprises a cutter head and a body. The body is provided with the cutter head transmission mechanism, and the first linkage member and the second linkage member of the cutter head transmission mechanism respectively form linkage cooperation with the first cutter head assembly and the second cutter head assembly in the cutter head.

[0021] The beneficial effects of the utility model are as follows: an eccentric piece is used to realize the mutual reciprocating motion of two swing frames through a connecting rod, the utility model has a simple structure, is easy to install, and has a low production cost, and can realize a small-volume design of the shaver, which is easy to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the assembly of the cutter head transmission mechanism and the frame.

[0023] Figure 2 It is a structural schematic diagram of the cutter head transmission mechanism.

[0024] Figure 3 Front view of the main swing frame.

[0025] Figure 4 Schematic diagram of the structure of the main swing frame.

[0026] Figure 5 Bottom view of the main swing frame.

[0027] Figure 6 It is a schematic diagram of the connecting rod structure.

[0028] Figure 7An exploded diagram of a reciprocating razor. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] refer to Figure 1 and Figure 2 The utility model discloses a cutter head transmission mechanism, which is mainly composed of a motor 100, an eccentric member 200, a main swing frame 300, a slave swing frame 400 and a connecting rod 500, wherein the eccentric member is connected to the motor shaft of the motor, the motor is fixedly arranged in a frame 600, and its motor shaft passes through the upper surface of the frame 600 and is connected to the eccentric member 200, the main swing frame 300 and the slave swing frame 400 are arranged side by side on the upper surface of the frame, and are connected by a connecting rod 500, and the connecting rod 500 is used to make the two swing frames move toward each other, so when the motor drives one of the swing frames to reciprocate through the eccentric member, the other swing frame is driven by the connecting rod to move in the opposite direction, and its movement direction is the length direction of the swing frame, which is Figure 3 The X direction means that it can reciprocate along the X axis, while up and down refer to Figure 3 in the Y direction.

[0032] refer to Figure 2 Among them, the motor 100, as a power source, is mainly used to provide power for the reciprocating motion of the cutter head assembly.

[0033] The eccentric piece 200 is linked to the motor shaft of the motor 100. The eccentric piece is cylindrical, and an eccentric shaft is provided at the upper end thereof. The eccentric shaft cooperates with the main swing frame, and the rotation of the eccentric piece drives the main swing frame to reciprocate linearly.

[0034] The main swing frame 300 is linked with the eccentric member at the bottom and can be driven by the motor 100 to move along the length direction of the main swing frame 300. The upper side thereof is provided with a first linkage member for driving the first cutter head assembly to move 11.

[0035] The secondary swing frame 400 is arranged side by side with the main swing frame 300, and a second linkage member for driving the second cutter head assembly 12 to move is provided on its upper side.

[0036] The main swing frame 300 and the slave swing frame 400 both include a swing portion 310 , and elastic sheets 320 bent outward and upward are provided at the lower ends of the left and right sides of the swing portion 310 , and a fixing portion 330 bent outward is provided at the upper end of the elastic sheet 320 .

[0037] Both ends of the main swing frame and the slave swing frame are fixed on the frame, and the linear displacement is achieved by using elastic sheets on both sides of the swing part.

[0038] The elastic sheet is realized by the toughness of the material itself. Through the thinning process, the thickness of the elastic sheet is reduced, so that it has a certain elastic deformation ability. At the same time, the swing frame is arched or inverted U-shaped, and its two ends extend outward along the X-axis direction to form a transition section. The transition section realizes the change of its own thickness, and then extends to the upper end of the Y-axis to form an elastic sheet. At this time, the thickness of the elastic sheet is much smaller than the thickness of the swing part, so that it has deformation ability, and then extends along the X-axis direction by bending to form a fixed part, which is used to be fixedly connected with the frame to realize the fixation of the two ends of the swing frame. In this way, the maximum moving position of the two sides of the swing frame is limited, and the reciprocating motion is realized only by the displacement of the deformation of the elastic sheet.

[0039] An arc-shaped groove 370 is provided at the connection between the elastic sheet 320 and the fixing portion 330. The arc-shaped groove 370 is opened downward. The design of the arc-shaped groove 370 provides deformation of the upper end of the elastic sheet, and the transition section at the bottom provides deformation of the lower end, so that the reciprocating displacement can meet the use requirements.

[0040] See also Figure 6 The connecting rod 500 connects the main swing frame 300 and the slave swing frame 400, and when the main swing frame 300 moves to either side, it drives the slave swing frame 400 to move to the opposite side. The connecting rod limits the distance between the two swing frames, and then when one of the swing frames moves relatively, it moves synchronously by pulling the connecting rod, and the connecting rod swings relatively, thereby causing the other swing frame to move in the opposite direction.

[0041] like Figure 3 As shown, at least one transmission part 340 protruding upward is provided at the upper end of the swing part 310 of the main swing frame 300 and the slave swing frame 400, and the two transmission parts 340 are connected by a connecting rod 500. In this embodiment, there are two transmission parts 340, which are respectively provided at the two ends of the swing part.

[0042] refer to Figure 4 , Figure 5In this embodiment, the transmission part 340 is a convex block having a first strip hole 341, and the bottom of the connecting rod 500 is correspondingly provided with a guide column 510 that matches the first strip hole 341. The guide column can move along the first strip hole, and then the relative position change of the connecting rod is used to realize the movement of the two swing frames in opposite directions.

[0043] As other embodiments, the structure may also be changed, that is, a guide column is provided on the transmission part, and a first strip hole is provided on the connecting rod.

[0044] See also Figure 5 The lower end of the swing part 310 of the main swing frame 300 is provided with a linkage part 350 that cooperates with the eccentric member. The linkage part 350 is provided with a second strip hole 351, and the eccentric shaft of the eccentric member 200 is inserted into the second strip hole 351, so that the eccentric member can drive the main swing frame to move toward each other.

[0045] The main swing frame 300 and the swing part 310 of the swing frame 400 extend upward from the center to form a linkage member 360 for cooperating with the cutter head assembly. The linkage member is provided with a socket, and a corresponding transmission rod is inserted to achieve a change in length, thereby enabling better linkage with the cutter head assembly in the cutter head.

[0046] A limit member 380 extending toward the slave swing frame 400 or the main swing frame 300 is provided on one side of the main swing frame 300 or the slave swing frame 400. The limit member 380 is used to limit the distance between the main swing frame and the slave swing frame, thereby making the relative movement between the two more consistent and maintaining the position between the two unchanged.

[0047] like Figure 7 As shown, the utility model also discloses a reciprocating shaver, which includes a cutter head 10 and a body 20, wherein the cutter head transmission mechanism 30 is provided in the body 20, and the first linkage member and the second linkage member of the cutter head transmission mechanism 30 respectively form a linkage cooperation with the first cutter head assembly 11 and the second cutter head assembly 12 in the cutter head 10.

[0048] The embodiments should not be regarded as limiting the present invention, but any improvements based on the spirit of the present invention should be within the protection scope of the present invention.

Claims

1. A cutter head transmission mechanism, characterized in that: It includes: A motor (100) for providing power; An eccentric member (200) is linked to a motor shaft of the motor (100); The main swing frame (300) is linked to the eccentric member at the bottom and can be driven by the motor (100) to move along the length direction of the main swing frame (300), and a first linkage member for driving the first cutter head assembly (11) to move is provided on the upper side thereof; The slave swing frame (400) is arranged side by side with the main swing frame (300), and a second linkage member for driving the second cutter head assembly (12) to move is provided on its upper side; The connecting rod (500) connects the main swing frame (300) and the slave swing frame (400), and when the main swing frame (300) moves to any one side, drives the slave swing frame (400) to move to the opposite side.

2. A cutter head transmission mechanism according to claim 1, characterized in that: The main swing frame (300) and the slave swing frame (400) both comprise a swing portion (310), the lower ends of the left and right sides of the swing portion (310) are provided with elastic sheets (320) bent outwards and upwards, and the upper ends of the elastic sheets (320) are provided with a fixing portion (330) bent outwards.

3. A cutter head transmission mechanism according to claim 1 or 2, characterized in that: At least one upwardly protruding transmission part (340) is provided at the upper end of the swinging part (310) of the main swinging frame (300) and the swinging part (400), and the two transmission parts (340) are connected via a connecting rod (500).

4. A cutter head transmission mechanism according to claim 3, characterized in that: The transmission part (340) is a convex block or a guide column having a first strip-shaped hole (341), and the bottom of the connecting rod (500) is correspondingly provided with a guide column (510) or a first strip-shaped hole that matches the first strip-shaped hole (341).

5. A cutter head transmission mechanism according to claim 1 or 2, characterized in that: The lower end of the swing portion (310) of the main swing frame (300) is provided with a linkage portion (350) that forms a linkage cooperation with the eccentric piece.

6. A cutter head transmission mechanism according to claim 5, characterized in that: The linkage portion (350) is provided with a second strip-shaped hole (351), and the eccentric shaft of the eccentric member (200) is inserted into the second strip-shaped hole (351).

7. A cutter head transmission mechanism according to claim 2, characterized in that: An arc-shaped groove (370) is provided at the connection between the elastic sheet (320) and the fixing portion (330), and the opening of the arc-shaped groove (370) is arranged downward.

8. A cutter head transmission mechanism according to claim 1 or 2, characterized in that: The main swing frame (300) and the swing portion (310) of the swing frame (400) extend upward from the center to form a linkage member (360) for linkage cooperation with the cutter head assembly.

9. A cutter head transmission mechanism according to claim 1 or 2, characterized in that: A stopper (380) extending in the direction of the secondary swing frame (400) or the main swing frame (300) is provided on one side of the main swing frame (300) or the secondary swing frame (400).

10. A reciprocating shaver, characterized in that: It comprises a cutter head (10) and a body (20), wherein the body (20) is provided with a cutter head transmission mechanism (30) as claimed in any one of claims 1 to 9, and a first linkage member and a second linkage member of the cutter head transmission mechanism (30) respectively form a linkage cooperation with a first cutter head assembly (11) and a second cutter head assembly (12) in the cutter head (10).

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