Three-axis rotary type electric toothbrush head

Abstract

The utility model discloses a three-axis rotary type electric toothbrush head which comprises a lower shell, an extending bearing plate is arranged at the front end of the lower shell, an upper shell is arranged at the upper end of the lower shell, and a three-axis brush head structure is arranged in the middle of the lower shell and the middle of the upper shell. The three-axis brush head structure comprises pin rods which are rotationally and symmetrically arranged on the two sides of the extending bearing plate, and side wing plates which can coaxially rotate with the pin rods are arranged on the surfaces of the pin rods on the two sides respectively. According to the three-shaft rotary type electric toothbrush head provided by the utility model, by arranging the three-shaft brush head structure, three surfaces of teeth can be respectively coated by the three rotary brush heads during tooth brushing, and the teeth can be brushed in all directions by matching with synchronous rotation of the three rotary brush heads, so that the problem that an existing brush head cannot be brushed in all directions can be solved; and meanwhile, the problem of incomplete brushing caused by a wrong tooth brushing mode can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of electric toothbrush technology, and in particular to a three-axis rotary electric toothbrush head. Background Technology

[0002] An electric toothbrush is a toothbrush that uses electricity to power the brush head for cleaning. Compared to manual toothbrushes, electric toothbrushes typically brush at a higher frequency and with greater force, helping to improve cleaning effectiveness. They are usually equipped with different brush heads, timers, and multiple cleaning modes to meet the oral health needs of different users. Electric toothbrushes are designed to make brushing more convenient and efficient, and are suitable for people of all ages.

[0003] The brush head is the replaceable part of an electric toothbrush, responsible for cleaning the mouth. It comes in various designs, including standard, sensitive, whitening, orthodontic, and children's brush heads, to meet the needs of different users. The standard brush head is suitable for daily use, the sensitive brush head is designed for people with sensitive gums, and the whitening brush head helps remove stains.

[0004] However, existing brush heads still have the following technical problems: Brush heads are generally divided into ultrasonic, rotary, and oscillating types, etc. Brushing teeth only cleans the enamel on the crown of the tooth and the gaps between the crowns. When using a traditional toothbrush, it can only clean one side of the crown. Most people spend more time cleaning the outside of the teeth than the inside when brushing. Such a long time will lead to the accumulation of foreign objects on the inner surface of the crown, thus failing to achieve a comprehensive cleaning of the teeth. Therefore, it is necessary to propose a three-axis rotary electric toothbrush head to provide a new technical solution to solve the technical problems mentioned in the above patent. Utility Model Content

[0005] Therefore, it is necessary to provide a three-axis rotary electric toothbrush head to address the aforementioned technical problems. By setting a three-axis brush head structure, the three rotating brush heads can cover the three sides of the teeth respectively during brushing. With the synchronous rotation of the three rotating brush heads, the teeth can be brushed in all directions, thereby solving the problem that existing brush heads cannot brush in all directions. At the same time, it can avoid the problem of incomplete brushing due to incorrect brushing methods.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A three-axis rotary electric toothbrush head for comprehensive oral cleaning.

[0008] The three-axis rotary electric toothbrush head specifically includes a lower housing, an extended support plate at the front end of the lower housing, an upper housing at the upper end of the lower housing, and a three-axis brush head structure in the middle of the lower housing and the upper housing.

[0009] The triaxial brush head structure includes pins symmetrically arranged on both sides of the extended support plate. The surfaces of the pins on both sides are respectively provided with side wing plates that can rotate coaxially with the pins. Rotating brush heads are respectively rotatably arranged on the two side wing plates and the middle part of the extended support plate.

[0010] As a preferred embodiment of the three-axis rotary electric toothbrush head provided by this utility model, pressure plates are symmetrically fixedly arranged in the middle of the lower housing and the extended support plate. A transmission shaft is rotatably connected to the middle of the pressure plate. A connecting seat for transmission connection with the brush rod is fixedly arranged at one end of the transmission shaft near the brush rod. A power gear is fixedly arranged on the surface of the transmission shaft and the power gear is arranged in the middle of the pressure plate.

[0011] In a preferred embodiment of the three-axis rotary electric toothbrush head provided by this utility model, the middle part of the pressure plate is rotatably connected to an active rotating shaft, and the end of the active rotating shaft away from the pressure plate extends to the middle part of the extended support plate. A first driven gear is fixedly connected to the surface of the active rotating shaft, and the first driven gear meshes with a power gear. A rotating brush head is rotatably connected to the end of the active rotating shaft away from the first driven gear, and the end of the rotating brush head away from the active rotating shaft is rotatably disposed in the middle part of the extended support plate.

[0012] As a preferred embodiment of the three-axis rotary electric toothbrush head provided by this utility model, a positioning frame is symmetrically fixedly connected to the middle of the lower housing and the upper housing. A driven shaft is symmetrically rotatably connected to the middle of the positioning frame, and the end of the driven shaft away from the positioning frame extends through the lower housing and the upper housing to the middle of the side wing plate. Rotating brush heads are respectively fixedly connected to the ends of the two driven shafts away from the positioning frame, and the two rotating brush heads are respectively rotatably connected to the middle of the two side wing plates.

[0013] As a preferred embodiment of the three-axis rotary electric toothbrush head provided by this utility model, a driven rotating shaft is fixedly connected to the surface of the driven rotating shaft, the two driven rotating shafts mesh with each other, a linkage rotating rod is rotatably connected to the middle of the pressure plate, a second driven gear is fixedly connected to the surface of the linkage rotating rod, the second driven gear meshes with the power gear, and the driven rotating shaft and the linkage rotating rod are connected to each other through a coupling.

[0014] As a preferred embodiment of the three-axis rotary electric toothbrush head provided by this utility model, the connection part between the driven shaft and the active shaft and the rotating brush head is made of a deformable material, and the material of the connection part includes, but is not limited to, natural rubber, polyurethane, polyethylene, etc.

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

[0016] The three-axis rotary electric toothbrush head provided by this utility model, by setting a three-axis brush head structure, can cover three sides of the teeth with three rotating brush heads respectively when brushing teeth. With the synchronous rotation of the three rotating brush heads, it can achieve all-round brushing of teeth, thereby solving the problem that existing brush heads cannot brush in all directions, and at the same time avoiding the problem of incomplete brushing due to incorrect brushing method.

[0017] The three-axis rotary electric toothbrush head provided by this utility model sets the connection between the active and driven shafts and the rotating brush head as a flexible connection, so that the rotating brush heads on both sides can be flipped outward to a certain position, thereby effectively matching the continuous brushing of teeth. Attached Figure Description

[0018] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments 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.

[0019] Figure 1 A schematic diagram of the overall structure of the three-axis rotary electric toothbrush head provided by this utility model;

[0020] Figure 2 A schematic diagram of the internal structure of the triaxial rotary electric toothbrush head provided by this utility model;

[0021] Figure 3 This is a schematic diagram of the three-axis rotary electric toothbrush head structure provided by this utility model.

[0022] Figure 4 A schematic diagram of the connection structure between the pin and side wing plate of the three-axis rotary electric toothbrush head and the extended support plate provided by this utility model.

[0023] The markings in the diagram are explained as follows:

[0024] 1. Lower housing; 2. Extended support plate; 3. Upper housing; 4. Triaxial brush head structure; 5. Pressure plate; 6. Drive shaft; 7. Connecting seat; 8. Power gear; 9. Positioning frame; 10. Drive shaft; 11. First driven gear; 12. Pin; 13. Side wing plate; 14. Linkage rod; 15. Second driven gear; 16. Driven shaft; 17. Helical gear; 18. Coupling; 19. Rotating brush head. Detailed Implementation

[0025] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0026] As described in the background section, brush heads are generally classified as ultrasonic, rotary, and oscillating. Brushing teeth only cleans the enamel on the crown and the gaps between the crowns. Traditional toothbrushes can only clean one side of the crown at a time. Most people spend more time cleaning the outer side of their teeth than the inner side. This prolonged cleaning can lead to the accumulation of foreign objects on the inner surface of the crown, thus failing to achieve a thorough cleaning of the teeth.

[0027] To solve this technical problem, this utility model provides a three-axis rotary electric toothbrush head, which is used for all-round cleaning of the oral cavity.

[0028] For details, please refer to Figure 1 The three-axis rotary electric toothbrush head specifically includes a lower housing 1, an extended support plate 2 at the front end of the lower housing 1, an upper housing 3 at the upper end of the lower housing 1, and a three-axis brush head structure 4 in the middle of the lower housing 1 and the upper housing 3.

[0029] The three-axis brush head structure 4 includes pins 12 that are symmetrically arranged on both sides of the extended support plate 2. The surfaces of the pins 12 on both sides are respectively provided with side wing plates 13 that can rotate coaxially with the pins 12. Rotating brush heads 19 are respectively rotatably arranged on the two side wing plates 13 and the middle part of the extended support plate 2.

[0030] The three-axis rotary electric toothbrush head provided by this utility model, by setting a three-axis brush head structure 4, allows the three rotating brush heads 19 to cover the three sides of the teeth respectively during brushing. With the synchronous rotation of the three rotating brush heads 19, the teeth can be brushed in all directions, thus solving the problem that existing brush heads cannot brush in all directions. At the same time, it can avoid the problem of incomplete brushing due to incorrect brushing methods.

[0031] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0032] Please refer to Figures 1-4 A three-axis rotary electric toothbrush head includes a lower housing 1, an extended support plate 2 at the front end of the lower housing 1, an upper housing 3 at the upper end of the lower housing 1, and a three-axis brush head structure 4 in the middle of the lower housing 1 and the upper housing 3.

[0033] The three-axis brush head structure 4 includes pins 12 that are symmetrically arranged on both sides of the extended support plate 2. The surfaces of the pins 12 on both sides are respectively provided with side wing plates 13 that can rotate coaxially with the pins 12. Rotating brush heads 19 are respectively rotatably arranged on the two side wing plates 13 and the middle part of the extended support plate 2.

[0034] Specifically, pressure plates 5 are symmetrically fixed in the middle of the lower housing 1 and the extended bearing plate 2. A transmission shaft 6 is rotatably connected in the middle of the pressure plate 5. A connecting seat 7 for transmission connection with the brush rod is fixedly provided at one end of the transmission shaft 6 near the brush rod. A power gear 8 is fixedly provided on the surface of the transmission shaft 6 and is located in the middle of the pressure plate 5.

[0035] Specifically, the middle of the pressure plate 5 is rotatably connected to the active rotating shaft 10, and the end of the active rotating shaft 10 away from the pressure plate 5 extends to the middle of the extended support plate 2. The surface of the active rotating shaft 10 is fixedly connected to the first driven gear 11, and the first driven gear 11 meshes with the power gear 8. The end of the active rotating shaft 10 away from the first driven gear 11 is rotatably connected to the rotating brush head 19, and the end of the rotating brush head 19 away from the active rotating shaft 10 is rotatably disposed in the middle of the extended support plate 2.

[0036] Specifically, positioning frames 9 are symmetrically fixedly connected to the middle of the lower shell 1 and the upper shell 3. A driven shaft 16 is symmetrically rotatably connected to the middle of the positioning frame 9, and the end of the driven shaft 16 away from the positioning frame 9 extends through the lower shell 1 and the upper shell 3 to the middle of the side wing plate 13. Rotating brush heads 19 are fixedly connected to the ends of the two driven shafts 16 away from the positioning frame 9, and the two rotating brush heads 19 are rotatably connected to the middle of the two side wing plates 13.

[0037] Specifically, a driven shaft 16 is fixedly connected to the surface of the driven shaft 16, and two driven shafts 16 mesh with each other. A linkage rod 14 is rotatably connected to the middle of the pressure plate 5. A second driven gear 15 is fixedly connected to the surface of the linkage rod 14. The second driven gear 15 meshes with the power gear 8. The driven shaft 16 and the linkage rod 14 are connected to each other through a coupling 18.

[0038] Specifically, the connection between the driven shaft 16 and the driving shaft 10 and the rotating brush head 19 is made of a deformable material, including but not limited to natural rubber, polyurethane, polyethylene, etc.

[0039] With the above structural design, when using the brush head, it is first connected to the transmission end of the toothbrush body via the connecting seat 7. After completion, the transmission end is turned on, causing the connecting seat 7 to rotate. Simultaneously, the rotation of the connecting seat 7 drives the first driven gear 11 and the second driven gear 15 to rotate via the transmission shaft 6 and the power gear 8. The rotation of the first driven gear 11 drives the rotating brush head 19 at the front end to rotate via the drive shaft 10. The second driven gear 15 drives the driven shaft 16 to rotate via the linkage rod 14 and the coupling 18. Because the helical gears 17 on the surface of the driven shaft 16 mesh with each other, the two driven shafts 16 can rotate synchronously. The simultaneous rotation of the two driven shafts 16 can drive the... When the rotating brush head 19 at the front end rotates, the brush head can be placed inside the mouth to brush the teeth. When brushing molars or wisdom teeth, due to their greater thickness, the rotating brush heads 19 on both sides are squeezed, causing the side wing plates 13 to rotate outward around the pin 12, so that the distance between the rotating brush heads 19 on both sides matches the thickness of the teeth, thus achieving complete coverage of the teeth. If the thickness of the teeth is thinner when cleaning incisors and canines, the driven rotating shafts 16 on both sides return to their original shape, causing the side wing plates 13 to rotate inward around the pin 12, thus achieving complete coverage of the extended support plate 2 of the teeth, thereby completing a comprehensive cleaning of the teeth.

Claims

1. A three-axis rotary electric toothbrush head, characterized in that; It includes a lower housing (1), an extended bearing plate (2) is provided at the front end of the lower housing (1), an upper housing (3) is provided at the upper end of the lower housing (1), and a three-axis brush head structure (4) is provided in the middle of the lower housing (1) and the upper housing (3); The triaxial brush head structure (4) includes pins (12) that are symmetrically arranged on both sides of the extended support plate (2). The surfaces of the pins (12) on both sides are respectively provided with side wing plates (13) that can rotate coaxially with the pins (12). Rotating brush heads (19) are respectively rotatably arranged on the two side wing plates (13) and the middle part of the extended support plate (2).

2. The three-axis rotary electric toothbrush head according to claim 1, characterized in that, A pressure plate (5) is symmetrically fixed in the middle of the lower housing (1) and the extended bearing plate (2). A transmission shaft (6) is rotatably connected in the middle of the pressure plate (5). A connecting seat (7) for transmission connection with the brush rod is fixedly provided at one end of the transmission shaft (6) near the brush rod. A power gear (8) is fixedly provided on the surface of the transmission shaft (6) and the power gear (8) is located in the middle of the pressure plate (5).

3. The three-axis rotary electric toothbrush head according to claim 2, characterized in that, The middle part of the pressure plate (5) is rotatably connected to an active rotating shaft (10), and the end of the active rotating shaft (10) away from the pressure plate (5) extends to the middle part of the extended support plate (2). The surface of the active rotating shaft (10) is fixedly connected to a first driven gear (11), and the first driven gear (11) meshes with a power gear (8). The end of the active rotating shaft (10) away from the first driven gear (11) is rotatably connected to a rotating brush head (19), and the end of the rotating brush head (19) away from the active rotating shaft (10) is rotatably disposed in the middle part of the extended support plate (2).

4. The three-axis rotary electric toothbrush head according to claim 3, characterized in that, Positioning frames (9) are symmetrically fixedly connected to the middle of the lower shell (1) and the upper shell (3). A driven shaft (16) is symmetrically rotatably connected to the middle of the positioning frame (9), and the end of the driven shaft (16) away from the positioning frame (9) passes through the lower shell (1) and the upper shell (3) and extends to the middle of the side wing plate (13). A rotating brush head (19) is fixedly connected to the end of the two driven shafts (16) away from the positioning frame (9), and the two rotating brush heads (19) are rotatably connected to the middle of the two side wing plates (13).

5. The three-axis rotary electric toothbrush head according to claim 4, characterized in that, The driven shaft (16) is fixedly connected to the surface of the driven shaft (16), and the two driven shafts (16) mesh with each other. The middle part of the pressure plate (5) is rotatably connected to the linkage rod (14), and the surface of the linkage rod (14) is fixedly connected to the second driven gear (15). The second driven gear (15) meshes with the power gear (8), and the driven shaft (16) and the linkage rod (14) are connected to each other through the coupling (18).

6. The three-axis rotary electric toothbrush head according to claim 5, characterized in that, The connection between the driven shaft (16) and the active shaft (10) and the rotating brush head (19) is made of a deformable material, including but not limited to natural rubber, polyurethane, and polyethylene.

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