Moving knife transmission mechanism of hair scissors

Abstract

The utility model relates to a moving blade transmission mechanism of hair scissors, which comprises a carrier and a moving blade mounting seat used for mounting a moving blade and capable of driving the moving blade to move synchronously, a transmission gear and a plurality of first output gears are further rotatably mounted on the carrier, and the transmission gear is linked with an output shaft of a motor. The multiple first output gears are directly or indirectly meshed with the transmission gear, eccentric parts deviating from the rotation center of the first output gears are arranged on the first output gears, and the eccentric parts can be used for being inserted into respective sliding grooves in the movable blade installation base so as to drive the movable blade to swing in a reciprocating mode. The movable cutter can be stably driven to swing back and forth through the eccentric parts.

Description

Technical Field

[0001] The utility model relates to the technical field of hair clippers, in particular to a moving blade transmission mechanism of a hair clipper. Background Art

[0002] A hair trimmer is disclosed in CN212601975U, which includes a stationary blade, a moving blade, a stationary blade fixing seat, a moving blade fixing seat, a moving blade driving mechanism, and a main housing. The moving blade is installed on the moving blade fixing seat, and the stationary blade is installed on the stationary blade fixing seat. Both the moving blade and the stationary blade are of annular structures, and both the moving blade and the stationary blade are provided with tooth portions. The tooth portions are teeth extending inward along the moving blade and the stationary blade respectively. The moving blade driving mechanism drives the moving blade to rotate to cut hair. The moving blade driving mechanism includes a motor and a swing rod. One end of the swing rod extends into a groove of the moving blade fixing seat. A fulcrum at the middle position of the swing rod is movable relative to the main housing. An eccentric member eccentrically arranged with respect to the axis of the motor is connected to the shaft end of the motor. A chute for the eccentric member to extend into is provided on the swing rod, and the eccentric member extends into this chute. The eccentric movement of the eccentric member drives the swing rod to perform a swinging movement, so that the moving blade swings back and forth and cooperates with the stationary blade to shave close to the head. In this structure, only one eccentric member drives the moving blade, and it is not stable enough and prone to shaking when driving the moving blade to swing. Summary of the Utility Model

[0003] Objective of the utility model: In order to overcome the defects of the prior art, the utility model provides a moving blade transmission mechanism of a hair clipper, which can stably drive the moving blade to swing back and forth through a plurality of eccentric members.

[0004] Technical solution of the utility model: A moving blade transmission mechanism of a hair clipper includes a carrier and a moving blade mounting seat for mounting a moving blade and capable of driving the moving blade to move synchronously. A transmission gear and a plurality of output gears I are rotatably installed on the carrier. The transmission gear is linked with the output shaft of the motor. The plurality of output gears I are directly or indirectly engaged with the transmission gear. An eccentric member deviating from the rotation center is provided on each output gear I. Each eccentric member can be inserted into respective chutes on the moving blade mounting seat to drive the moving blade to perform reciprocating swing.

[0005] By adopting the above technical solution, the transmission gear is used to drive the plurality of output gears I to rotate synchronously and drive the eccentric members to move in the chutes, so that the moving blade swings back and forth and cooperates with the fixed blade to shave close to the head. Through the corresponding cooperation of the plurality of eccentric members and the plurality of chutes, the moving blade can be stably driven to swing back and forth with small vibration.

[0006] Preferably, the carrier is the body of the hair clipper, and an output shaft 1 or an output groove 1 capable of driving the first moving cutter head to rotate is further provided at the center of the transmission gear. A first moving cutter head can be installed in the middle, and the output shaft 1 or the output groove 1 cooperates with the first moving cutter head to rotate synchronously, so that the transmission gear can drive the first moving cutter head to continuously rotate.

[0007] Preferably, the rotational speed of the first output gear is higher than that of the transmission gear. The rotational speed of the annular moving blade should be higher than the usage requirement of the first moving cutter head to avoid excessive motor load.

[0008] Preferably, the carrier is the body of the hair clipper, and it further includes a plurality of second output gears linked to the transmission gear. An output shaft 2 or an output groove 2 capable of driving the respective second moving cutter heads to rotate is provided at the center of each second output gear. A plurality of second moving cutter heads can also be installed. The transmission gear drives the plurality of second output gears to rotate synchronously, and the output shaft 2 or the output groove 2 cooperates with the second moving cutter heads to rotate synchronously, so that the plurality of second output gears can drive the respective second moving cutter heads to continuously rotate.

[0009] Preferably, it further includes a driven gear provided above the transmission gear. The driven gear rotates synchronously with the transmission gear, and the plurality of second output gears are directly or indirectly engaged with the driven gear. The driven gear and the transmission gear are designed with upper and lower layers, which is convenient for driving the plurality of second output gears.

[0010] Preferably, an output shaft 2 or an output groove 2 capable of driving the corresponding second moving cutter head to rotate is also provided at the center of the driven gear.

[0011] Preferably, the rotational speeds of each second output gear and the driven gear are the same. It is convenient for driving the plurality of second moving cutter heads and has high synchronism.

[0012] Preferably, the rotational speed of the first output gear is higher than that of the second output gear.

[0013] Preferably, the plurality of first output gears are the same gears and have the same rotational speed. It is convenient for driving one moving blade and has high synchronism.

[0014] Preferably, a driving gear coaxially connected to the output shaft of the motor is further provided, and the driving gear is directly or indirectly engaged with the transmission gear. Description of the Drawings

[0015] Figure 1 Structural diagram of the gear installation in the first specific embodiment of the present invention;

[0016] Figure 2 Structural diagram of the moving blade mounting seat in the first specific embodiment of the present invention;

[0017] Figure 3 Structural diagram of the gear cooperation in the first specific embodiment of the present invention;

[0018] Figure 4 Structural diagram of the gear installation in Specific Embodiment 2 of the present utility model;

[0019] Figure 5 Structural diagram of the first moving blade mounting seat in Specific Embodiment 2 of the present utility model;

[0020] Figure 6 Structural diagram of the installation of the second output gear in Specific Embodiment 3 of the present utility model;

[0021] Figure 7 Structural diagram of the installation of the second output gear in Specific Embodiment 3 of the present utility model;

[0022] Figure 8 Structural diagram of multiple second moving blade mounting seats in Specific Embodiment 3 of the present utility model.

[0023] In the figure: carrier A, moving blade mounting seat B, chute B1, motor C, transmission gear 1, first output gear 2, eccentric member 3, driving gear 8, first output groove 42, first moving blade head mounting seat B', first output shaft 41, second output gear 5, second output shaft 61, second moving blade head mounting seat B'', output groove 62, driven gear 7, transmission shaft D. Specific embodiments

[0024] Next, the technical solutions in this embodiment will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] Such as Figures 1-3As shown in the following: Specific Embodiment 1 of the present utility model, a driving mechanism for a moving blade of a hair clipper, includes a carrier A, a moving blade mounting seat B for mounting a moving blade and capable of driving the moving blade to move synchronously. A driving gear 1 and a plurality of output gears 2 are rotatably installed on the carrier A. The plurality of output gears 2 are circumferentially distributed. The driving gear 1 is linked to the output shaft of a motor C. The plurality of output gears 2 are directly or indirectly engaged with the driving gear 1. An eccentric member 3 is provided on each output gear 2 and is offset from its rotation center. The eccentric member 3 is fixed or integrally provided on the output gear 2. Each eccentric member 3 can be inserted into the respective chute B1 on the moving blade mounting seat B, thereby driving the moving blade to swing reciprocally. A plurality of chutes B1 are directly or indirectly provided on the moving blade mounting seat B. The plurality of output gears 2 are the same gears and are directly engaged with the driving gear 1, so that the rotation speeds of the output gears 2 are the same. Of course, the plurality of output gears and the driving gear can also be driven by the same number of gears, so that the rotation speeds of the output gears are the same. A driving gear 8 coaxially connected to the output shaft of the motor is also provided. The driving gear 8 is directly or indirectly engaged with the driving gear 1. The above-mentioned moving blade has an annular structure, or can also be a strip structure and perform linear reciprocation.

[0026] Working principle: The driving gear 1 drives the plurality of output gears 2 to rotate synchronously and drives the eccentric member 3 to move in the chute B1, so that the moving blade mounting seat B drives the moving blade to swing back and forth and cooperate with the fixed blade to shave the head by fitting the head. Through the corresponding cooperation of the plurality of eccentric members 3 and the plurality of chutes B1, the moving blade can be stably driven to swing back and forth with small vibration.

[0027] Such as Figures 4-5Shown as follows: In the specific embodiment 2 of the present utility model, an intermediate moving cutter head 1 can also be installed. The driving structure of the cutter head 1 is as follows: The moving cutter transmission mechanism of the hair clipper includes a carrier A, and a transmission gear 1 is rotatably installed on the carrier A. The transmission gear 1 is linked with the output shaft of the motor C. The carrier A is the body of the hair clipper. At the center of the transmission gear 1, there is an output shaft 41 or an output groove 42 that can drive the rotation of the cutter head 1. When there is an output groove 42 at the center of the transmission gear, an output shaft 41 is directly or indirectly provided on the cutter head mounting seat B'. The output shaft 41 is inserted into the output groove 42 to achieve synchronous rotation, thereby driving the cutter head 1 to rotate. The cutter head 1 is installed on the cutter head mounting seat B'. Of course, an output shaft can also be provided at the center of the transmission gear, and an output groove is directly or indirectly provided on the cutter head mounting seat. When the output gear 1 is directly meshed with the transmission gear 1, since the number of teeth of the transmission gear 1 is more than that of the output gear 1, the rotational speed of the output gear 1 is higher than that of the transmission gear 1. Of course, the rotational speed of the output gear 1 can also be made higher than that of the transmission gear 1 through a speed reducer. The output shaft or the output groove is in synchronous rotation with the cutter head mounting seat B', so that the transmission gear can drive the cutter head 1 to continuously rotate.

[0028] When an eccentric part is provided in the above-mentioned embodiment 2, the cutter head 1 and the annular moving blade of Embodiment 1 can be installed together, or the cutter head 1 can be used to replace the moving blade. When replacing, the corresponding cutter mounting seat is removed.

[0029] As Figures 6-8 Shown as follows: In the specific embodiment 3 of the present utility model, multiple cutter heads 2 can also be installed. The driving structure of the cutter head 2 is as follows: The moving cutter transmission mechanism of the hair clipper includes a carrier A, and a transmission gear 1 is rotatably installed on the carrier A. The transmission gear 1 is linked with the output shaft of the motor C. The carrier A is the body of the hair clipper. It also includes a plurality of output gears 5 linked with the transmission gear 1. At the center of each output gear 5, there is an output shaft 61 or an output groove 62 that can drive the rotation of each cutter head 2. When there is an output shaft 61 at the center of the output gear, output grooves 62 are directly or indirectly provided on a plurality of cutter head mounting seats B''. The output shaft 61 is inserted into the corresponding output groove 62 to achieve synchronous rotation, thereby driving the corresponding cutter head 2 to rotate. The cutter head 2 is installed on the cutter head mounting seat B''. Of course, an output groove can also be provided on the output gear, and an output shaft is directly or indirectly provided on the cutter head mounting seat.

[0030] Specifically, it further includes a driven gear 7 provided above the transmission gear 1. A transmission shaft D is connected between the driven gear 7 and the transmission gear 1 to achieve synchronous rotation. The output groove 42 on the transmission gear 1 is used for the transmission shaft D to be inserted. A plurality of output gears 5 are directly or indirectly engaged with the driven gear 7. Of course, a plurality of output gears 5 can also be directly meshed with the transmission gear 1.

[0031] Specifically, an output shaft two 61 or an output groove two 62 that can drive the corresponding moving cutter head two to rotate is also provided at the center of the driven gear 7. The output gears two 5 and the driven gear 7 are the same gears, so that their rotational speeds are the same. The rotational speed of the output gear one 2 is higher than that of the output gear two 5. Multiple output gears two can drive their respective moving cutter heads two to continuously rotate.

[0032] When an eccentric member is provided in the above-mentioned Embodiment 3, the moving cutter head two and the annular moving blade of the above-mentioned Embodiment 1 can be installed together, or the moving cutter head two can be used to replace the moving blade.

[0033] The above-mentioned carrier can be the body or the head of a hair clipper.

[0034] It should be noted that in the present invention, descriptions such as "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. In the description of the present invention, the meanings of "several" and "multiple" are at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "coupling", "connection", "fixation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A movable blade transmission mechanism of a hair clipper, characterized in that: The invention comprises a carrier (A), a moving blade mounting seat (B) for mounting a moving blade and capable of driving the moving blade to move synchronously, a transmission gear (1) and a plurality of output gears (2) being rotatably mounted on the carrier (A), the transmission gear (1) being linked to the output shaft of a motor (C), the plurality of output gears (2) being directly or indirectly engaged with the transmission gear (1), each output gear (2) being provided with an eccentric piece (3) deviating from its rotation center, each eccentric piece (3) being capable of being inserted into a respective slide groove (B1) on the moving blade mounting seat (B), thereby driving the moving blade to swing back and forth.

2. The movable blade transmission mechanism of the hair clippers according to claim 1, characterized in that: The carrier (A) is the body of the hair clipper, and an output shaft (41) or an output slot (42) capable of transmitting the rotation of a movable cutter head is provided at the center of the transmission gear (1).

3. The movable blade transmission mechanism of the hair clippers according to claim 2, characterized in that: The output gear 1 (2) has a rotation speed higher than the transmission gear (1).

4. The movable blade transmission mechanism of the hair clippers according to claim 1, characterized in that: The carrier (A) is the body of the hair clipper, and also includes a plurality of output gears (5) linked to the transmission gear (1), and each output gear (5) is provided at its center with an output shaft (61) or an output slot (62) capable of transmitting the rotation of each automatic cutter head (61).

5. The movable blade transmission mechanism of the hair clippers according to claim 4, characterized in that: It also includes a driven gear (7) disposed above the transmission gear (1), the driven gear (7) rotating synchronously with the transmission gear (1), and a plurality of output gears (5) directly or indirectly meshing with the driven gear (7).

6. The movable blade transmission mechanism of the hair clippers according to claim 5, characterized in that: The center of the driven gear (7) is also provided with an output shaft (61) or an output groove (62) capable of transmitting the rotation of the corresponding movable cutter head (61).

7. The movable blade transmission mechanism of the hair clippers according to claim 6, characterized in that: The output gears 2 (5) and the driven gears (7) all have the same rotational speed.

8. The movable blade transmission mechanism of the hair clippers according to claim 4, 5, 6 or 7, characterized in that: The rotation speed of the output gear 1 (2) is higher than that of the output gear 2 (5).

9. A movable blade transmission mechanism of a hair clipper according to any one of claims 1 to 7, characterized in that: The plurality of output gears (2) are identical gears and have the same rotational speed.

10. The movable blade transmission mechanism of a hair clipper according to any one of claims 1 to 7, characterized in that: A driving gear (8) is also provided which is coaxially connected to the output shaft of the motor, and the driving gear (8) is directly or indirectly engaged with the transmission gear (1).

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