Reciprocating type shaver transmission structure

Abstract

The utility model relates to the field of shavers, and discloses a reciprocating type shaver transmission structure which comprises a shell, a driving assembly is arranged on the inner wall of the shell and comprises a driving motor, the driving motor is installed on the inner wall of the shell, the right end of an output shaft of the driving motor is fixedly connected with an eccentric wheel, and the right end of the output shaft of the driving motor is fixedly connected with the eccentric wheel. A limiting frame is installed on the right surface of the driving motor, a swing frame is slidably connected to the left end of the limiting frame, a sliding groove used for containing an eccentric wheel is formed in the inner wall of the swing frame, an outer swing shaft is fixedly connected to the right surface of the swing frame, a tool bit assembly is arranged on the right surface of the shell, and the tool bit assembly comprises a holder; and the retainer is inserted into the right end of the shell. According to the shaver, the eccentric wheel and the swing frame are used for replacing a traditional swing rod type transmission structure, when the eccentric wheel rotates, the eccentric wheel can drive the swing frame to move left and right, and the swing frame can drive the outer sliding frame to move left and right through the outer swing shaft, so that shaving is achieved.

Description

Technical Field

[0001] This utility model relates to the field of razors, and in particular to a reciprocating razor transmission structure. Background Technology

[0002] A reciprocating electric shaver is a type of electric shaver that mainly consists of a shaver head, a motor, a battery, and a housing. The shaver head mainly consists of a protective mesh and a blade mesh. By starting the motor, the blade mesh can be driven to swing back and forth, thus completing the shaving operation.

[0003] To expand the shaving range, existing electric shavers typically incorporate multiple shaving head assemblies within a single unit. Simultaneously, to reduce overall size, they often house only a single motor. This necessitates a transmission mechanism to synchronously transmit the motion of the motor's output shaft to the two shaving head assemblies. Existing transmission mechanisms primarily consist of multiple oscillating arms, which drive the oscillating frame to swing left and right around a rotation axis via the rotation of the motor's output shaft, thus influencing the shaving head assemblies' left and right movements. This not only requires significant space but also results in limited contact points between the oscillating arms and the shaving heads, leading to poor overall transmission stability. Therefore, a reciprocating shaver transmission structure is proposed to address these issues. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a reciprocating shaver transmission structure, which aims to improve the problem that "existing technologies often use swing rods for transmission, which occupy a large space and have poor transmission stability".

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a reciprocating shaver transmission structure, comprising a housing, a drive assembly provided on the inner wall of the housing, the drive assembly including a drive motor, the drive motor mounted on the inner wall of the housing, an eccentric wheel fixedly connected to the right end of the output shaft of the drive motor, a limit frame mounted on the right surface of the drive motor, a swing frame slidably connected to the left end of the limit frame, a groove for accommodating the eccentric wheel provided on the inner wall of the swing frame, an outer swing shaft fixedly connected to the right surface of the swing frame, a shaver head assembly provided on the right surface of the housing, an inner through groove and an outer through groove sequentially provided on the right surface of the limit frame from the inside to the outside, the limit frame inserted into the left end of a retainer, and a protective cover sleeved on the outer wall of the retainer.

[0006] As a further description of the above technical solution:

[0007] The cutter head assembly includes a retainer inserted into the right end of the housing. An outer fixing bracket is snapped into the inner wall of the retainer. An outer sliding bracket is inserted into the right surface of the outer fixing bracket. An outer blade net is fixedly connected to the right end of the outer sliding bracket. An outer protective net is fixedly connected to the outer wall of the outer fixing bracket near the right end. An outer slot for accommodating an outer swing shaft is provided on the left surface of the outer sliding bracket. An inner swing shaft is fixedly connected to the right end of the eccentric wheel. An inner fixing bracket is snapped into the inner wall of the retainer near the center. An inner sliding bracket is slidably connected to the right surface of the inner fixing bracket.

[0008] As a further description of the above technical solution:

[0009] An inner blade mesh is fixedly connected to the right end of the inner sliding frame, an inner protective mesh is fixedly connected to the right end of the inner fixed frame, and an inner slot for accommodating the inner swing shaft is provided on the left surface of the inner sliding frame.

[0010] As a further description of the above technical solution:

[0011] The left end of the external fixator is elastically connected to the inner wall of the retainer via a support spring.

[0012] As a further description of the above technical solution:

[0013] The inner fixing frame is elastically connected to the inner wall of the retainer by a support spring.

[0014] As a further description of the above technical solution:

[0015] The right end of the external fixed frame is elastically connected to the left end of the external sliding frame via a second support spring.

[0016] As a further description of the above technical solution:

[0017] The left end of the inner sliding frame is elastically connected to the right surface of the inner fixed frame by a support spring.

[0018] As a further description of the above technical solution:

[0019] The outer protective net is arc-shaped, and the inner protective net is U-shaped.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the traditional swing rod transmission structure is replaced by using an eccentric wheel and a swing frame. When the eccentric wheel rotates, it will drive the swing frame to move left and right. The swing frame will drive the outer sliding frame to move left and right through the outer swing shaft, thereby realizing shaving. The overall device has a compact structure and occupies less space.

[0022] 2. In this utility model, an eccentric wheel is used for transmission. Since the eccentric wheel and the swing frame are in line contact, compared with the point contact method used in the prior art, the use of high-pair contact enables the overall device to maintain better stability during high-speed movement. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;

[0024] Figure 2 This is a three-dimensional structural breakdown diagram of the overall device in this utility model;

[0025] Figure 3 This is a three-dimensional structural disassembly diagram of the driving component in this utility model;

[0026] Figure 4 This is a left-side split view of the three-dimensional structure of the cutter head assembly in this utility model;

[0027] Figure 5 This is a three-dimensional structural disassembly diagram of the cutter head assembly in this utility model;

[0028] Figure 6 This is a left-side view of the three-dimensional structure of the swing frame in this utility model.

[0029] Legend:

[0030] 1. Housing; 2. Cutter head assembly; 21. Holder; 22. Outer protective net; 23. Outer fixing bracket; 24. Inner protective net; 25. Support spring one; 26. Inner fixing bracket; 27. Inner blade net; 28. Outer blade net; 29. ​​Inner sliding bracket; 210. Support spring two; 211. Inner slot; 212. Outer sliding bracket; 213. Outer slot; 3. Protective cover; 4. Drive assembly; 41. Drive motor; 42. Eccentric wheel; 43. Inner swing shaft; 44. Swing bracket; 45. Outer swing shaft; 46. Limit bracket; 47. Inner through groove; 48. Outer through groove; 49. Slide groove. Detailed Implementation

[0031] 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.

[0032] Reference Figure 1 , Figure 3 and Figure 6This utility model provides an embodiment of a reciprocating shaver transmission structure, including a housing 1 for supporting the overall device. The inner wall of the housing 1 is provided with a drive assembly 4 for providing power for shaving operations. The drive assembly 4 includes a drive motor 41 for outputting power. The drive motor 41 is existing technology and can start working as soon as it is connected to a power source. Due to its existing nature, it will not be described in detail here. The drive motor 41 is mounted on the inner wall of the housing 1. An eccentric wheel 42 for transmitting power is fixedly connected to the right end of the output shaft of the drive motor 41. When the drive motor 41 starts working, the eccentric wheel 42... 2 will be driven to rotate synchronously. The right surface of the drive motor 41 is equipped with a limiting frame 46 for supporting the movement of the swing frame 44. The left end of the limiting frame 46 is slidably connected to the swing frame 44 for transmitting motion. The inner wall of the swing frame 44 is provided with a groove 49 for accommodating the eccentric wheel 42. When the eccentric wheel 42 is driven to rotate by the drive motor 41, it will squeeze the inner wall of the groove 49 and drive the swing frame 44 to swing back and forth. The right surface of the swing frame 44 is fixedly connected with an outer swing shaft 45 for driving the blade assembly 2 to work. The right surface of the housing 1 is provided with a blade assembly 2 for shaving.

[0033] Reference Figure 3 - Figure 5 The blade assembly 2 includes a retainer 21 for supporting the overall blade assembly 2. The retainer 21 is inserted into the right end of the housing 1. The inner wall of the retainer 21 is fitted with an outer fixing frame 23 for supporting the movement of the outer sliding frame 212. The right surface of the outer fixing frame 23 is fitted with an outer sliding frame 212 for driving the movement of the outer blade net 28. The right end of the outer sliding frame 212 is fixedly connected with an outer blade net 28 for cutting beard. The outer wall of the outer fixing frame 23 is fixedly connected near the right end with an outer protective net 22 for blocking the user's skin. The left surface of the outer sliding frame 212 is provided with an outer slot 213 for accommodating the outer swing shaft 45. When the swing frame 44 drives the outer swing shaft 45 to move left and right, the outer swing shaft 45 will squeeze the outer slot 213 to drive the outer sliding frame 212 to swing.

[0034] Reference Figure 3 - Figure 5An inner swing shaft 43 for driving the inner sliding frame 29 to swing is fixedly connected to the right end of the eccentric wheel 42. An inner fixed frame 26 for supporting the inner sliding frame 29 is snapped into the inner wall of the retainer 21 near the center. An inner sliding frame 29 for driving the inner blade 27 to move is slidably connected to the right surface of the inner fixed frame 26. An inner blade 27 for deep cutting is fixedly connected to the right end of the inner sliding frame 29. An inner protective net 24 is fixedly connected to the right end of the inner fixed frame 26. An inner slot for accommodating the inner swing shaft 43 is provided on the left surface of the inner sliding frame 29. 211. When the eccentric wheel 42 rotates, it will drive the inner swing shaft 43 to rotate. The rotation of the inner swing shaft 43 can push the inner slot 211 to swing the inner sliding frame 29. The left end of the outer fixed frame 23 is elastically connected to the inner wall of the retainer 21 through the support spring 25. The inner fixed frame 26 is elastically connected to the inner wall of the retainer 21 through the support spring 25. The support spring 25 mainly plays a supporting role. By pushing the outer fixed frame 23 and the inner fixed frame 26, the outer fixed frame 23 and the inner fixed frame 26 can be kept stable during shaving.

[0035] Reference Figure 2 , Figure 3 and Figure 5 The right end of the outer fixed frame 23 is elastically connected to the left end of the outer sliding frame 212 via a second support spring 210. The left end of the inner sliding frame 29 is elastically connected to the right surface of the inner fixed frame 26 via a second support spring 210. The second support spring 210 also serves as a support, supporting the outer sliding frame 212 and the inner sliding frame 29. This allows the outer blade net 28 to fit against the outer protective net 22, and the inner blade net 27 to fit against the inner protective net 24. The right surface of the limiting frame 46 is provided with an inner through groove 47 and an outer through groove 48 from the inside to the outside. The inner through groove 47 is circular and can be used to support the inner swing shaft. 43 moves, the outer through groove 48 is rectangular, which can be used to support the movement of the outer swing shaft 45. The limit frame 46 is inserted into the left end of the retainer 21. The outer wall of the retainer 21 is fitted with a protective cover 3 to protect the overall blade assembly 2. The outer protective net 22 is set in an arc shape, and the inner protective net 24 is set in a concave shape. The outer protective net 22 adopts an arc design, which allows the operator to rotate the entire device up and down to change the cutting point between the device and the skin when shaving. The inner protective net 24 adopts a concave design, which allows it to have a larger contact area when in contact with the skin, making it easier to cut large areas of coarse and short hair.

[0036] Working Principle: When the entire device is in operation, the drive motor 41 starts working first, and its output shaft drives the eccentric wheel 42 to rotate synchronously. The eccentric wheel 42, as a key component of the transmission, converts the rotational motion of the drive motor 41 into the reciprocating linear motion of the swing frame 44. The outer swing shaft 45 on the right surface of the swing frame 44 swings together with the swing frame 44. The outer swing shaft 45 inserts into the outer slot 213 on the left surface of the outer sliding frame 212. The swinging motion of the outer swing shaft 45 pushes the outer slot 213, thereby driving the outer sliding frame 212 to move left and right. The outer blade 28, fixedly connected to the right end of the outer sliding frame 212, also moves left and right accordingly, achieving beard cutting. Simultaneously, the inner swing shaft 43, fixedly connected to the right end of the eccentric wheel 42, inserts into the inner slot 211 on the left surface of the inner sliding frame 29 as the eccentric wheel 42 rotates, pushing the inner sliding frame 29 to move left and right. The inner blade 27, fixedly connected to the right end of the inner sliding frame 29, also moves left and right, assisting the outer blade 28 in performing large-area shaving.

[0037] In the shaving head assembly 2, the outer fixing frame 23 is elastically connected to the inner wall of the retainer 21 via a support spring 25, and the inner fixing frame 26 is also elastically connected to the inner wall of the retainer 21 via a support spring 25. These two support springs 25 provide support for the outer fixing frame 23 and the inner fixing frame 26, keeping them stable during shaving. In addition, the right end of the outer fixing frame 23 is elastically connected to the left end of the outer sliding frame 212 via a support spring 210, and the left end of the inner sliding frame 29 is also elastically connected to the right surface of the inner fixing frame 26 via a support spring 210. These two support springs 210 ensure that the outer foil 28 can fit against the outer protective net 22, and the inner foil 27 can fit against the inner protective net 24, improving shaving performance and safety.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A reciprocating shaver transmission structure, comprising a housing (1), characterized in that: The inner wall of the housing (1) is provided with a drive assembly (4), which includes a drive motor (41). The drive motor (41) is installed on the inner wall of the housing (1). An eccentric wheel (42) is fixedly connected to the right end of the output shaft of the drive motor (41). A limit frame (46) is installed on the right surface of the drive motor (41). A swing frame (44) is slidably connected to the left end of the limit frame (46). The inner wall of the swing frame (44) is... The slide groove (49) is provided to accommodate the eccentric wheel (42). The right surface of the swing frame (44) is fixedly connected to the outer swing shaft (45). The right surface of the housing (1) is provided with the cutter head assembly (2). The right surface of the limiting frame (46) is provided with an inner through groove (47) and an outer through groove (48) from the inside to the outside. The limiting frame (46) is inserted into the left end of the retainer (21). The outer wall of the retainer (21) is fitted with a protective cover (3).

2. The reciprocating shaver transmission structure according to claim 1, characterized in that: The cutter head assembly (2) includes a retainer (21), which is inserted into the right end of the housing (1). An outer fixing bracket (23) is snapped into the inner wall of the retainer (21). An outer sliding bracket (212) is inserted into the right surface of the outer fixing bracket (23). An outer blade net (28) is fixedly connected to the right end of the outer sliding bracket (212). An outer protective net (22) is fixedly connected to the outer wall of the outer fixing bracket (23) near the right end. An outer slot (213) for accommodating an outer swing shaft (45) is provided on the left surface of the outer sliding bracket (212). An inner swing shaft (43) is fixedly connected to the right end of the eccentric wheel (42). An inner fixing bracket (26) is snapped into the inner wall of the retainer (21) near the center. An inner sliding bracket (29) is slidably connected to the right surface of the inner fixing bracket (26).

3. The reciprocating shaver transmission structure according to claim 2, characterized in that: An inner knife net (27) is fixedly connected to the right end of the inner sliding frame (29), an inner protective net (24) is fixedly connected to the right end of the inner fixed frame (26), and an inner slot (211) for accommodating the inner swing shaft (43) is provided on the left surface of the inner sliding frame (29).

4. The reciprocating shaver transmission structure according to claim 2, characterized in that: The left end of the external fixing bracket (23) is elastically connected to the inner wall of the retainer (21) by a support spring (25).

5. The reciprocating shaver transmission structure according to claim 4, characterized in that: The inner fixing frame (26) is elastically connected to the inner wall of the retainer (21) by a support spring (25).

6. The reciprocating shaver transmission structure according to claim 5, characterized in that: The right end of the outer fixed frame (23) is elastically connected to the left end of the outer sliding frame (212) through a second support spring (210).

7. The reciprocating shaver transmission structure according to claim 3, characterized in that: The left end of the inner sliding frame (29) is elastically connected to the right surface of the inner fixed frame (26) by a second support spring (210).

8. The reciprocating shaver transmission structure according to claim 3, characterized in that: The outer protective net (22) is set in an arc shape, and the inner protective net (24) is set in a concave shape.

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