A dual power driven multi-head electric shaver

Abstract

The application provides a double-power-driven multi-head electric shaver, and the technical scheme is as follows: a main shell and a main bottom shell are included; a detachable multi-head shaving assembly is arranged above the main shell; the shaving assembly includes a plurality of knife nets, and corresponding blades are arranged in the knife nets; a first gear set for driving the blades to rotate is arranged below the shaving assembly; a second gear set for driving the knife nets to rotate is arranged in the shaving assembly; and a first motor and a second motor for driving the first gear set and the second gear set to rotate are respectively arranged in the main shell; the blades and the knife nets can rotate, long and short hairs can be easily introduced into the knife nets for shearing, and the hairs can be shaved more cleanly and uniformly.

Description

[Technical Field]

[0001] This invention relates to the field of shaver technology, and in particular to a dual-power driven multi-blade electric shaver. [Background Technology]

[0002] Hair shavers are common grooming tools used in daily life, often for trimming beards and body hair, and for people with short hair to trim their hair. Multiple shaving heads can effectively improve shaving efficiency, but existing multi-blade shavers only have rotating blades while the foil remains stationary. Longer hairs are difficult to catch within the foil, leading to uneven and unclean shaving results. Furthermore, existing multi-blade shavers are prone to tangling hairs, resulting in a poor user experience. [Summary of the Invention]

[0003] In order to enable the blades of a multi-blade shaver to rotate during shaving to enhance the shaving effect and improve the user experience, this invention provides a dual-power driven multi-blade electric shaver.

[0004] To address the above problems, the present invention provides the following technical solution:

[0005] A dual-power driven multi-blade electric shaver, characterized in that: it includes a main body housing and a main body bottom housing; a detachable multi-blade shaver assembly is provided above the main body housing; the shaver assembly includes several blade nets with corresponding blades inside the blade nets; a first gear set for driving the blades to rotate is provided below the shaver assembly; a second gear set for driving the blade nets to rotate is provided inside the shaver assembly; a first motor and a second motor for driving the first gear set and the second gear set to rotate are respectively provided inside the main body housing; a gear box is provided between the shaver assembly and the main body housing; the gear box is fixedly installed at the top of the main body housing; the first gear set is installed inside the gear box; the shaver assembly also includes a housing and a base plate fixedly connected to the housing; the second gear set is disposed inside the housing.

[0006] The dual-power driven multi-blade electric shaver described above is characterized in that: the first gear set includes a drive gear, a transmission gear, and a rotating gear; the drive gear is fixedly mounted on the motor shaft of the first motor; the transmission gear is located between the rotating gears; a plurality of transmission connecting rods are provided between the blade and the first gear set, which rotate synchronously with the rotating gears; the blade is movably nested in the upper end of the transmission connecting rod; and the top end of the rotating gear is connected to the lower end of the transmission connecting rod.

[0007] The dual-power driven multi-blade electric shaver described above is characterized in that: a first groove is provided at the center of the top of the rotating gear, and multiple buckles are provided around the first groove; a second groove is provided at the lower end of the transmission connecting rod, and multiple locking heads for engaging the buckles are provided around the second groove; the transmission connecting rod is movably engaged with the top of the rotating gear; a spring is provided between the rotating gear and the transmission connecting rod to hold the transmission connecting rod in place so that the blades fit against the blade net; one end of the spring rests in the first groove, and the other end rests in the second groove.

[0008] The dual-power driven multi-blade electric shaver described above is characterized in that: the second gear set includes a first rotating gear, a second rotating gear, and a power gear, the power gear rotates synchronously with the motor shaft of the second motor and meshes with the first rotating gear, the second rotating gear is provided in multiples and distributed around the first rotating gear, and the first rotating gear meshes with each of the multiple second rotating gears.

[0009] The dual-power driven multi-blade electric shaver described above is characterized in that: the blades are a first blade and a second blade, the first blade and the second blade are respectively fixedly mounted on the first rotating gear and the second rotating gear and rotate synchronously therewith, the first rotating gear is hollow, a slot is provided on the inner wall of the first rotating gear, a kit is fixedly mounted on the first blade, a rib is provided on the outer surface of the kit for inserting into the slot, locking points are provided on both sides of the upper end of the second rotating gear, and a buckle is provided on the outer side of the lower end of the second blade for locking the locking points.

[0010] The dual-power driven multi-blade electric shaver described above is characterized in that: a transmission rod is fixedly installed on the motor shaft of the second motor, a slot is provided at the top of the transmission rod, and a tooth is provided at the bottom of the power gear to insert into the slot.

[0011] The dual-power driven multi-blade electric shaver described above is characterized in that: a first shell and a second shell are nested on the outer sides of the first blade and the second blade, respectively; the first shell is located at the center of the outer shell; the second shell is distributed around the periphery of the outer shell; insertion holes are provided on both sides of the second shell; a rotating shaft for inserting into the insertion holes is correspondingly provided inside the outer shell; a downwardly extending positioning post is provided at the center of the top of the inner end of each blade; and a positioning hole for inserting the positioning post is correspondingly provided at the top end of each blade.

[0012] The dual-power driven multi-blade electric shaver described above is characterized in that: a plurality of hair-guiding grooves are provided on the upper surface of the outer shell for guiding hair toward the blade net; a plurality of through cleaning holes are provided on the bottom plate; and a dustproof pad for preventing cut hair from falling into the gear box is provided at the top of the gear box and nested on the transmission connecting rod.

[0013] The dual-power driven multi-blade electric shaver described above is characterized in that: a first magnetic attractor is provided on the top surface of the gear box, and a second magnetic attractor that engages with the first magnetic attractor is provided on the bottom surface of the base plate.

[0014] The dual-power driven multi-blade electric shaver described above is characterized in that: a control circuit board and a battery are also provided inside the main unit housing, and a button switch and a charging interface are provided on the bottom shell of the main unit.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. The present invention provides a multi-blade electric shaver with dual-power drive, comprising a first gear set, a second gear set, a first motor, and a second motor. The dual-motor structure simplifies the transmission structure of the gear set and facilitates adjustment of the speed ratio between the motor and the gears. The first motor and the second motor respectively drive the first gear set and the second gear set to rotate, causing the blades of the shaver head to rotate rapidly for cutting hair, while the foil of the shaver head rotates slowly, which can draw longer hairs into the foil for cutting, preventing any hairs from being missed. Moreover, the slow rotation of the foil allows shorter hairs to be easily guided into the foil from all directions, resulting in a cleaner and more even shave. Simultaneously, part of the foil rotates in the same direction as the blades, while another part rotates in the opposite direction. The rotation speed of the blades is much greater than the rotation speed of the foil, thereby ensuring the cutting effect of the multi-blade electric shaver.

[0017] 2. The present invention provides a dual-power driven multi-blade electric shaver, in which a first shell and a second shell are nested on the outer sides of the first and second blades, respectively. The first shell and the first blade are located at the center of the outer shell, which can guide hair from all directions into the first blade without the need to rotate and adjust the shaving angle of the first blade. The second shell and the second blade are distributed around the periphery of the outer shell, and the tilt angle of the second blade can be adjusted through the insertion hole and the rotating shaft. The second blade can adjust the shaving angle according to the surface curvature of the shaving area, so that the second blade fits the human skin better during shaving, thereby enhancing the shaving effect and user experience of the multi-blade electric shaver.

[0018] 3. The present invention is a dual-power driven multi-blade electric shaver with a detachable shaving component. The blades are movably nested in the upper end of the transmission connecting rod. The shaving component is magnetically connected to the main unit. After using the multi-blade electric shaver, the shaving component can be disassembled for cleaning. The bottom plate has multiple cleaning holes, which can easily pour out the cut hair or rinse it directly with water. The hair inside the shaving component can be easily washed out through the cleaning holes, making cleaning very convenient. [Attached Image Description]

[0019] Figure 1 This is a 3D view of the multi-blade electric shaver;

[0020] Figure 2 This is a top view of the multi-blade electric shaver;

[0021] Figure 3 yes Figure 2 A cross-sectional view along the AA direction, with the main body structure and the cutter head housing omitted from the drawing;

[0022] Figure 4 This is the first exploded view of the multi-blade electric shaver;

[0023] Figure 5 This is the second exploded view of the multi-blade electric shaver;

[0024] Figure 6 This is the third exploded view of the multi-blade electric shaver, with some of the main unit's structure hidden in the image;

[0025] Figure 7 This is the fourth exploded view of the multi-blade electric shaver, with some of the main unit's structure hidden in the image;

[0026] Figure 8 This is an exploded view of the shaving assembly;

[0027] Figure 9 This is an exploded view of the first gear set;

[0028] In the diagram: 1 is the main unit housing; 2 is the main unit bottom shell; 3 is the shaving assembly; 301 is the outer shell; 302 is the base plate; 303 is the first shell; 304 is the second shell; 305 is the insertion hole; 306 is the rotating shaft; 4 is the blade net; 401 is the first blade net; 402 is the second blade net; 403 is the positioning post; 404 is the kit; 405 is the rib; 406 is the buckle; 5 is the blade; 501 is the positioning hole; 6 is the gear box; 7 is the first gear set; 701 is the drive gear; 702 is the transmission gear; 703 is the rotating gear; 704 is the buckle; 8 is the second gear set; 8 01 is the first rotating gear; 802 is the second rotating gear; 803 is the power gear; 804 is the slot; 805 is the locking point; 806 is the locking tooth; 9 is the transmission connecting rod; 901 is the locking head; 10 is the spring; 1001 is the first groove; 1002 is the second groove; 11 is the first motor; 12 is the second motor; 13 is the transmission rod; 14 is the locking slot; 15 is the hair guide groove; 16 is the cleaning hole; 17 is the dustproof pad; 18 is the control circuit board; 19 is the battery; 20 is the push-button switch; 21 is the first magnetic component; 22 is the second magnetic component; 23 is the charging interface.

Detailed Implementation Methods

[0029] The technical features of the present invention will be further described in detail below with reference to the accompanying drawings so that those skilled in the art can understand that the upper, lower, left, and right orientations described herein are consistent with those shown in the accompanying drawings.

[0030] A dual-power driven multi-blade electric shaver has two or more blades. Taking a shaver with five blades as an example, its specific structure is as follows: Figures 1-9 As shown, the device includes a main housing 1 and a main housing bottom shell 2. A detachable, multi-blade shaving assembly 3 is provided above the main housing 1. The shaving assembly 3 includes several blade nets 4, with corresponding blades 5 arranged inside the blade nets 4. A first gear set 7 for driving the blades 5 to rotate is provided below the shaving assembly 3. A second gear set 8 for driving the blade nets 4 to rotate is provided inside the shaving assembly 3. A first motor 11 and a second motor 12 for driving the first gear set 7 and the second gear set 8 to rotate are respectively provided inside the main housing 1. A gear box 6 is provided between the shaving assembly 3 and the main housing 1. The gear box 6 is fixedly installed on the top of the main housing 1. The first gear set 7 is installed inside the gear box 6. The shaving assembly 3 also includes a housing 301 and a base plate 302 fixedly connected to the housing 301. The second gear set 8 is disposed inside the housing 301.

[0031] The dual-motor structure simplifies the gear transmission structure and facilitates adjustment of the speed ratio between the motor and the gears. The first motor 11 and the second motor 12 respectively drive the first gear set 7 and the second gear set 8 to rotate, causing the blade 5 to rotate rapidly for cutting hair. The blade net 4 rotates slowly, which can draw longer hairs into the blade net 4 for cutting, preventing omissions. Moreover, the slow rotation of the blade net 4 allows shorter hairs to be easily guided into the blade net 4 from all directions, resulting in a cleaner and more even shave. Simultaneously, due to the multiple transmission gears 702 and multiple... The rotating gears 703 are all the same size. The blades 5 rotate in the same direction and at the same speed. The first blade net 401 at the center and the two second blade nets 402 rotate in the same direction as the blades 5. The other two second blade nets 402 rotate in the opposite direction to the blades 5. The rotation speed of the blades 5 is much greater than the rotation speed of the blade nets 402 to ensure the cutting effect of the multi-blade electric shaver. Moreover, the different rotation directions of the second blade nets 402 allow hair to be guided into the second blade nets 402 from multiple directions, thereby improving shaving efficiency.

[0032] Specifically, the first gear set 7 includes a drive gear 701, a transmission gear 702, and a rotating gear 703. The drive gear 701 is fixedly mounted on the motor shaft of the first motor 11. The transmission gear 702 is located between the rotating gears 703. A plurality of transmission connecting rods 9 are provided between the blade 5 and the first gear set 7, which rotate synchronously with the rotating gears 703. The blade 5 is movably nested in the upper end of the transmission connecting rod 9. The top end of the rotating gear 703 is connected to the lower end of the transmission connecting rod 9. Taking a 5-blade shaver as an example, there are five rotating gears 703, which correspond to the five blades of the shaver. One rotating gear 703 is located in the center, and the other four are located around the perimeter. The drive gear 701 meshes with the rotating gear 703 in the center. There are four transmission gears 702, which are respectively located between the rotating gears 703 in the perimeter and the rotating gear 703 in the center.

[0033] Furthermore, a first groove 1001 is provided at the center of the top of the rotating gear 703, and multiple buckles 704 are provided around the first groove 1001. A second groove 1002 is provided at the lower end of the transmission connecting rod 9, and multiple locking heads 901 for engaging the buckles 704 are provided around the second groove 1002. The transmission connecting rod 9 can be movably engaged with the top of the rotating gear 703. A spring 10 is provided between the rotating gear 703 and the transmission connecting rod 9 to hold the transmission connecting rod 9 so that the blade 5 fits against the blade net 4. One end of the spring 10 abuts in the first groove 1001, and the other end abuts in the second groove 1002. The spring 10 lifts the transmission connecting rod 9, and the transmission connecting rod 9 abuts the blade 5, so that the blade 5 rotates tightly against the blade net 4, thereby ensuring the shearing force of the shaver and solving the problem of hair entanglement during shaving.

[0034] Specifically, the second gear set 8 includes a first rotating gear 801, a second rotating gear 802, and a power gear 803. The power gear 803 rotates synchronously with the motor shaft of the second motor 12 and meshes with the first rotating gear 801. Multiple second rotating gears 802 are provided and distributed around the first rotating gear 801. The first rotating gear 801 meshes with each of the multiple second rotating gears 802. The blades 4 are the first blade 401 and the second blade 402, respectively. The first blade 401 and the second blade 402 are respectively fixed... The first rotating gear 801 and the second rotating gear 802 are fixedly installed on the first rotating gear 801 and rotate synchronously with it. The first rotating gear 801 is one and located at the center, and the second rotating gear 802 is four and distributed around the first rotating gear 801. Since the first rotating gear 801 directly meshes with the four second rotating gears 802, when the first rotating gear 801 rotates clockwise, two of the second rotating gears 802 will drive the second blade net 402 to rotate clockwise, and the other two second rotating gears 802 will drive the second blade net 402 to rotate counterclockwise.

[0035] Specifically, the first rotating gear 801 is hollow, and a slot 804 is provided on the inner wall of the first rotating gear 801. A kit 404 is fixedly installed on the first blade net 401. Ribs 405 for inserting into the slot 804 are provided on the outer surface of the kit 404. Locking points 805 are provided on both sides of the upper end of the second rotating gear 802. A buckle 406 for locking the locking points 805 is provided on the outer side of the lower end of the second blade net 402. The first blade net 401 is tightly inserted into the first rotating gear 801 through the kit 404, and the second blade net 402 is fastened to the second rotating gear 802 through the buckle 406. This makes the shaving assembly 3 parts easy to assemble and ensures that the gear and the blade net rotate synchronously.

[0036] Specifically, a transmission rod 13 is fixedly installed on the motor shaft of the second motor 12. A slot 14 is provided at the top of the transmission rod 13, and a tooth 806 is provided at the bottom of the power gear 803 to insert into the slot 14. The tooth 806 is polygonal to ensure that the power gear 803 rotates synchronously with the motor shaft of the second motor 12. At the same time, since the power gear 803 is installed on the base plate 302, the transmission is carried out through the slot 14 and the tooth 806, which facilitates the installation and disassembly of the shaving assembly 3.

[0037] Specifically, a first housing 303 and a second housing 304 are nested on the outer sides of the first blade 401 and the second blade 402, respectively. The first housing 303 is located at the center of the outer shell 301, and the second housing 304 is distributed around the periphery of the outer shell 301. Insertion holes 305 are provided on both sides of the second housing 304. A rotating shaft 306 for inserting into the insertion holes 305 is correspondingly provided inside the outer shell 301. A downwardly extending positioning post 403 is provided at the center of the top of each blade 401. A positioning hole 501 for inserting into the positioning post 403 is correspondingly provided at the top of the blade 5. The first housing 303 and the first blade 401 are located at the center of the outer shell 301, allowing hair from all directions to be guided into the first blade 401 without needing to rotate or adjust the shaving angle. The second housing 304 and the second blade 402 are distributed around the periphery of the outer shell 301, allowing hair to pass through the insertion holes 305. The second blade net 402 is tilted by the pivot 306 and the pivot 5. When the second housing 304 is tilted by force, the second housing 304 will drive the second blade net 402 and the corresponding blade 5 to tilt. The positioning pin 403 and the positioning hole 501 can ensure that the corresponding blade 5 and the second blade net 402 are tilted at the same angle, thereby ensuring that the blade 5 and the second blade net 402 are in close contact to ensure the shearing force of the shaver. Since the blade 5 is movably nested on the upper end of the transmission connecting rod 9, and the upper end of the transmission connecting rod 9 is polygonal, even if the blade 5 is tilted, the transmission connecting rod 9 can drive the blade 5 to rotate quickly to cut the hair. The second blade net 402 can adjust the shaving angle according to the surface curvature of the shaving part, so that the second blade net 402 is more in line with human skin when shaving, thereby enhancing the shaving effect and user experience of the multi-blade electric shaver.

[0038] Specifically, the upper surface of the outer casing 301 is provided with several hair-guiding grooves 15 for guiding hair towards the blade net 4. These grooves 15 are distributed on the outer side of the blade net 4, guiding hair from various directions to improve shaving efficiency. The base plate 302 has multiple through-hole cleaning holes 16. After using the multi-blade electric shaver, the shaving components can be disassembled for cleaning. The cut hair can be easily poured out through the cleaning holes 16 or rinsed directly with water, allowing for easy cleaning. Hair inside the outer casing 301 is washed out through the cleaning hole 16. A dustproof pad 17 is provided at the top of the gear box 6 and nested on the transmission connecting rod 9 to prevent cut hair from falling into the gear box 6. The dustproof pad 17 can block the gap between the cleaning hole 16 and the top of the gear box 6 without affecting the rotation of the transmission connecting rod 9, so that the cut hair accumulates in the outer casing 301 and is cleaned in a concentrated manner after shaving, which is convenient for cleaning and can prevent the cut hair from affecting the rotation of the first gear set 7.

[0039] Specifically, a first magnetic suction member 21 is provided on the top surface of the gear box 6, and a second magnetic suction member 22 that is attracted to the first magnetic suction member 21 is provided on the bottom surface of the base plate 302. The shaving assembly 3 can be connected to the main unit by magnetic attraction, or by snapping, sleeve or other means, so that the shaving assembly 3 can be disassembled for cleaning after use.

[0040] In addition, a control circuit board 18 and a battery 19 are provided inside the main unit housing 1. A button switch 20 and a charging interface 23 are provided on the bottom housing 2 of the main unit. The charging interface 23 is electrically connected to the battery 19. The control circuit board 18 is electrically connected to the button switch 20, the first motor 11 and the second motor 12.

[0041] The embodiments described in this invention are merely preferred embodiments of the invention and are not limited to the precise structures described above and shown in the accompanying drawings. Various modifications and changes can be made without departing from the scope thereof. Any variations and improvements made by those skilled in the art to the technical solutions of this invention without departing from the design concept of this invention should fall within the protection scope of this invention.

Claims

1. A dual-power driven multi-blade electric shaver, characterized in that: The device includes a main housing (1) and a main housing bottom shell (2). A detachable, multi-blade shaving assembly (3) is located above the main housing (1). The shaving assembly (3) includes several blade nets (4), with corresponding blades (5) arranged within each blade net (4). A first gear set (7) for rotating the blades (5) is located below the shaving assembly (3). A second gear set (8) for rotating the blade nets (4) is located within the shaving assembly (3). The main housing (1) also contains gears for rotating the first... A first motor (11) and a second motor (12) rotating a first gear set (7) and a second gear set (8) are provided. A gear box (6) is provided between the shaving assembly (3) and the main housing (1). The gear box (6) is fixedly installed on the top of the main housing (1). The first gear set (7) is installed in the gear box (6). The shaving assembly (3) also includes a housing (301) and a base plate (302) fixedly connected to the housing (301). The second gear set (8) is disposed in the housing (301). The first gear set (7) includes a drive gear (701), a transmission gear (702), and a rotating gear (703). The drive gear (701) is fixedly mounted on the motor shaft of the first motor (11). The transmission gear (702) is located between the rotating gear (703). A plurality of transmission connecting rods (9) that rotate synchronously with the rotating gear (703) are provided between the blade (5) and the first gear set (7). The blade (5) is movably nested in the upper end of the transmission connecting rod (9). The top end of the rotating gear (703) is connected to the lower end of the transmission connecting rod (9). A first groove (1001) is provided at the center of the top of the rotating gear (703), and a plurality of buckles (704) are provided around the first groove (1001). A second groove (1002) is provided at the lower end of the transmission connecting rod (9), and a plurality of clips (901) for engaging the buckles (704) are provided around the second groove (1002). The transmission connecting rod (9) is movably engaged with the top of the rotating gear (703). A spring (10) is provided between the rotating gear (703) and the transmission connecting rod (9) to hold the transmission connecting rod (9) so that the blade (5) fits against the blade net (4). One end of the spring (10) abuts in the first groove (1001), and the other end abuts in the second groove (1002). The main unit housing (1) is also provided with a control circuit board (18) and a battery (19), and the main unit bottom housing (2) is provided with a push button switch (20) and a charging interface (23).

2. The dual-power driven multi-blade electric shaver according to claim 1, characterized in that: The second gear set (8) includes a first rotating gear (801), a second rotating gear (802), and a power gear (803). The power gear (803) rotates synchronously with the motor shaft of the second motor (12) and meshes with the first rotating gear (801). There are multiple second rotating gears (802) distributed around the first rotating gear (801). The first rotating gear (801) meshes with multiple second rotating gears (802) respectively.

3. The dual-power driven multi-blade electric shaver according to claim 2, characterized in that: The blades (4) are a first blade (401) and a second blade (402). The first blade (401) and the second blade (402) are fixedly mounted on the first rotating gear (801) and the second rotating gear (802) respectively and rotate synchronously. The first rotating gear (801) is hollow and has a slot (804) on its inner wall. A kit (404) is fixedly mounted on the first blade (401). Ribs (405) for inserting into the slot (804) are provided on the outer side of the kit (404). There are locking points (805) on both sides of the upper end of the second rotating gear (802). There are buckles (406) for locking the locking points (805) on the lower outer side of the second blade (402).

4. The dual-power driven multi-blade electric shaver according to claim 2, characterized in that: A transmission rod (13) is fixedly installed on the motor shaft of the second motor (12). A slot (14) is provided at the top of the transmission rod (13), and a tooth (806) for inserting into the slot (14) is provided at the bottom of the power gear (803).

5. The dual-power driven multi-blade electric shaver according to claim 3, characterized in that: A first shell (303) and a second shell (304) are nested on the outside of the first blade (401) and the second blade (402), respectively. The first shell (303) is located at the center of the outer shell (301), and the second shell (304) is distributed around the periphery of the outer shell (301). Insertion holes (305) are provided on both sides of the second shell (304). A rotating shaft (306) for inserting into the insertion hole (305) is provided in the outer shell (301). A downwardly extending positioning post (403) is provided at the center of the top of the blade (4). A positioning hole (501) for inserting into the positioning post (403) is provided at the top of the blade (5).

6. The dual-power driven multi-blade electric shaver according to claim 1, characterized in that: The upper surface of the outer shell (301) is provided with a plurality of hair-guiding grooves (15) for guiding hair to the blade net (4), the bottom plate (302) is provided with a plurality of through cleaning holes (16), and a dustproof pad (17) for preventing the cut hair from falling into the gear box (6) is provided on the top of the gear box (6) and nested in the transmission connecting rod (9).

7. The dual-power driven multi-blade electric shaver according to claim 1, characterized in that: A first magnetic attractor (21) is provided on the top surface of the gear box (6), and a second magnetic attractor (22) that engages with the first magnetic attractor (21) is provided on the bottom surface of the base plate (302).

Images