Automatic height adjusting device for shaver motor and transmission accessory

Abstract

The utility model discloses an automatic height adjusting device for a shaver motor and a transmission accessory, which belongs to the technical field of shavers and comprises a fixing sleeve and a protective shell movably connected in the fixing sleeve, a partition plate is fixed in the fixing sleeve, a stepping motor is mounted on the bottom wall of an inner cavity of the fixing sleeve, and the partition plate is fixed on the bottom wall of the inner cavity of the fixing sleeve. A driving bevel gear is fixed to the outer wall of an output shaft of the stepping motor, a lifting screw is rotationally connected into the fixing sleeve, a driven bevel gear meshed with the driving bevel gear is fixed to the outer wall of the lower half portion of the lifting screw, and the outer wall of the lifting screw is in threaded connection with a supporting sleeve fixedly connected with the protective shell; a fixing plate is fixed in the protective shell, a rotating motor is installed on the bottom wall of an inner cavity of the protective shell, and a protective cover is movably connected to the surface of the protective shell. According to the automatic height adjusting device for the motor and the transmission accessory of the shaver, the height of the protective shell can be automatically adjusted according to shaving requirements, so that beards are trimmed into appropriate lengths.

Description

Technical Field

[0001] This utility model belongs to the field of shaver technology, specifically relating to an automatic height adjustment device for a shaver motor and transmission components. Background Technology

[0002] The transmission mechanism of existing shavers is usually driven by an electric motor, which drives the motor gear, which in turn drives the intermediate gear and the large gear. In this structure, the large gear is usually fitted onto the central cylinder of the motor frame. The large gear is also fitted onto equally distributed cylinders, thereby driving the drive shaft to rotate, which in turn drives the shaver head to rotate, thus completing the shaving function of the shaver.

[0003] In life, some men have a certain length of beard on their face. However, current electric shavers cannot adjust the shaving length and require tools to trim the beard to a specific length. When tools are unavailable, it is impossible to trim the beard to a specific length. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic height adjustment device for a shaver motor and transmission components, in order to solve the problem mentioned in the background art that the electric shaver in the prior art cannot adjust the shaving length and requires the use of tools to trim the beard to a specific length. When tools are not available, it is impossible to trim the beard to a specific length.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic height adjustment device for a shaver motor and transmission components, comprising a fixed sleeve and a protective shell movably connected within the fixed sleeve. A partition is fixed inside the fixed sleeve, a stepper motor is installed on the bottom wall of the inner cavity of the fixed sleeve, and a driving bevel gear is fixed on the outer wall of the output shaft of the stepper motor. A lifting screw is rotatably connected inside the fixed sleeve, and a driven bevel gear meshing with the driving bevel gear is fixed on the lower half of the outer wall of the lifting screw. A support sleeve fixedly connected to the protective shell is threaded to the outer wall of the lifting screw.

[0006] A fixing plate is fixed inside the protective shell, and a rotary motor is installed on the bottom wall of the inner cavity of the protective shell. A protective cover is movably connected to the surface of the protective shell.

[0007] In a further embodiment, two rotating holes are provided at corresponding positions of the fixing plate and the protective cover, and a rotating shaft is rotatably connected in the rotating holes of the fixing plate and the protective cover.

[0008] In a further embodiment, a drive gear is fixed to the outer wall of the output shaft of the rotary motor, and a driven gear that meshes with the drive gear is fixed to the outer wall of both rotating shafts.

[0009] In a further embodiment, a limiting block that is rotatably connected to a fixed plate is fixed at the bottom of the rotating shaft, a limiting ring is fixed on the outer wall of the lower half of the rotating shaft, and a connector is installed on the upper half of the rotating shaft.

[0010] In a further embodiment, the outer walls on both sides of the protective shell are fixed with limit sliders, and the inner walls on both sides of the fixed sleeve are provided with limit grooves for the limit sliders to slide.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] The shaver motor and transmission components have an automatic height adjustment device. The blade is installed on the connector head, and the stepper motor drives the active bevel gear to rotate. The active bevel gear drives the lifting screw to rotate through the driven bevel gear, thereby moving the support sleeve and then the protective shell. This automatically adjusts the distance between the blade and the beard, and can trim the beard to a suitable length according to shaving needs.

[0013] The shaver uses a rotary motor to drive a drive gear, which in turn drives two rotating shafts and a connector to rotate simultaneously via a driven gear. This, in turn, drives two blades to rotate, resulting in a simpler structure and improved shaving efficiency. The shaver's motor and transmission components also feature an automatic height adjustment device that adjusts the height of the protective shell according to shaving needs, thus trimming the beard to the appropriate length. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the fixing sleeve of this utility model;

[0017] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a schematic diagram of the structure of the protective shell of this utility model;

[0019] Figure 5 This is a cross-sectional view of the protective shell of this utility model.

[0020] In the diagram: 1. Fixed sleeve; 2. Partition plate; 3. Stepper motor; 4. Driving bevel gear; 5. Lifting screw; 6. Driven bevel gear; 7. Support sleeve; 8. Positioning block; 9. Protective shell; 10. Fixed plate; 11. Rotary motor; 12. Driving gear; 13. Protective cover; 14. Rotating shaft; 15. Limiting block; 16. Limiting ring; 17. Driven gear; 18. Connector; 19. Limiting slider. Detailed Implementation

[0021] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0022] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0023] Please see Figure 1-5 This utility model provides an automatic height adjustment device for a shaver motor and transmission components, including a fixed sleeve 1 and a protective shell 9 movably connected inside the fixed sleeve 1. A partition 2 is fixed inside the fixed sleeve 1 by screws. A stepper motor 3 is installed on the bottom wall of the inner cavity of the fixed sleeve 1 by screws, and a driving bevel gear 4 is fixed on the outer wall of the output shaft of the stepper motor 3. A lifting screw 5 is rotatably connected inside the fixed sleeve 1 through a bearing. A driven bevel gear 6 that meshes with the driving bevel gear 4 is fixed on the lower half of the outer wall of the lifting screw 5. A support sleeve 7 that is fixedly connected to the protective shell 9 is threaded to the outer wall of the lifting screw 5. Positioning blocks 8 are fixed on both sides of the outer wall of the support sleeve 7 by screws. The positioning blocks 8 can limit the movement distance of the support sleeve 7 to prevent the lifting screw 5 from separating from the support sleeve 7. The support sleeve 7 has a cuboid structure, and the surface of the partition 2 is provided with a moving groove for the support sleeve 7 to move.

[0024] A fixing plate 10 is fixed inside the protective shell 9 by screws, and a rotary motor 11 is installed on the bottom wall of the inner cavity of the protective shell 9 by screws. A drive gear 12 is fixed on the outer wall of the output shaft of the rotary motor 11. A protective cover 13 is movably connected to the surface of the protective shell 9. The protective cover 13 is fixedly connected to the protective shell 9 by a buckle. Grooves are provided on both outer walls of the protective cover 13 to facilitate opening the protective cover 13, thereby facilitating the disassembly, assembly and maintenance of the components inside the protective shell 9.

[0025] Two rotating holes are provided at corresponding positions on the fixing plate 10 and the protective cover 13. Rotating shafts 14 are rotatably connected to the rotating holes of the fixing plate 10 and the protective cover 13. Driven gears 17 that mesh with the driving gear 12 are fixed to the outer walls of both rotating shafts 14. A limiting block 15, rotatably connected to the fixing plate 10, is welded to the bottom of the rotating shaft 14. A limiting ring 16 is fixed to the lower half of the outer wall of the rotating shaft 14. The limiting block 15 and the limiting ring 16 can restrict the position of the rotating shaft 14, preventing it from sliding off the fixing plate 10. A connector 18 is installed on the upper half of the rotating shaft 14 for connecting to the knife. The head is connected, and the outer walls of both sides of the protective shell 9 are fixed with limit sliders 19 by screws. The inner walls of both sides of the fixing sleeve 1 are provided with limit grooves for the limit sliders 19 to slide. The limit sliders 19 can limit the movement path and movement distance of the protective shell 9. The blade is installed on the connecting head 18, and the stepper motor 3 drives the active bevel gear 4 to rotate. The active bevel gear 4 drives the lifting screw 5 to rotate through the driven bevel gear 6, thereby driving the support sleeve 7 to move, and then driving the protective shell 9 to move. The distance between the blade and the beard is automatically adjusted, and the beard can be trimmed to a suitable length according to the shaving needs.

[0026] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The control method of this utility model is through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0027] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Working principle:

[0029] The automatic height adjustment device for the shaver motor and transmission components works as follows: During use, the fixing sleeve 1 is installed inside the electric shaver's housing, and the blades are installed outside the connector 18. During shaving, the stepper motor 3 is activated, driving the drive bevel gear 4 to rotate. The drive bevel gear 4, through the driven bevel gear 6, drives the lifting screw 5 to rotate, thereby moving the support sleeve 7, which in turn moves the protective shell 9, automatically adjusting the distance between the blades and the beard. Then, the rotary motor 11 is activated, driving the drive gear 12 to rotate. The drive gear 12, through the driven gear 17, can simultaneously drive the two rotating shafts 14 and the connector 18 to rotate, thereby simultaneously driving the two blades to rotate, trimming the beard to a suitable length according to shaving needs.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A shaving razor motor and transmission assembly automatic height adjustment device comprising a fixed sleeve (1) and a guard housing (9) movably connected to the fixed sleeve (1), characterized in that: The fixed sleeve (1) is internally fixed with a partition plate (2), the bottom wall of the inner cavity of the fixed sleeve (1) is provided with a stepping motor (3), the outer wall of the output shaft of the stepping motor (3) is fixed with a driving bevel gear (4), the fixed sleeve (1) is rotationally connected with a lifting screw rod (5), the outer wall of the lower half of the lifting screw rod (5) is fixed with a driven bevel gear (6) engaged with the driving bevel gear (4), and the outer wall of the lifting screw rod (5) is threadedly connected with a support sleeve (7) fixedly connected with a protective shell (9). The protective shell (9) is internally fixed with a fixed plate (10), and the bottom wall of the inner cavity of the protective shell (9) is provided with a rotating motor (11), and the surface of the protective shell (9) is movably connected with a protective cover (13).

2. A shaving razor motor and transmission assembly automatic height adjustment device according to claim 1 characterized in that: The corresponding positions of the fixed plate (10) and the protective cover (13) are both provided with two rotating holes, and the rotating holes of the fixed plate (10) and the protective cover (13) are rotationally connected with rotating shafts (14).

3. A shaver motor and transmission assembly automatic height adjustment device according to claim 2, characterized in that: The outer wall of the output shaft of the rotating motor (11) is fixed with a driving gear (12), and the outer walls of the two rotating shafts (14) are both fixed with driven gears (17) engaged with the driving gear (12).

4. A shaver motor and transmission assembly automatic height adjustment device according to claim 2, characterized in that: The bottom of the rotating shaft (14) is fixed with a limiting block (15) rotationally connected with the fixed plate (10), the outer wall of the lower half of the rotating shaft (14) is fixed with a limiting ring (16), and the upper half of the rotating shaft (14) is provided with a connecting head (18).

5. A shaving razor motor and transmission assembly automatic height adjustment device according to claim 1 characterized in that: The outer walls of the two sides of the protective shell (9) are both fixed with limiting sliding blocks (19), and the inner walls of the two sides of the fixed sleeve (1) are both provided with limiting sliding grooves for the sliding of the limiting sliding blocks (19).

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