Electric toothbrush head and electric toothbrush

Abstract

This utility model discloses an electric toothbrush head, including a brush head and a connecting part 2. The brush head is U-shaped and slidably connected to the connecting part 2. The U-shaped brush head of this utility model can effectively cover three surfaces of the teeth, and the brush head can perform reciprocating motion, effectively cleaning teeth.

Description

Technical Field

[0001] This utility model relates to the field of daily necessities technology, specifically to an electric toothbrush head and an electric toothbrush. Background Technology

[0002] Toothbrushes, as a daily necessity, come in a wide variety of types. Generally, a toothbrush consists of a handle and a brush head. The bristles on the brush head are concentrated and fixed on one side for cleaning teeth. Single-sided toothbrushes, however, may not clean teeth thoroughly and cannot clean other areas of the mouth. This is especially true for younger children learning to brush, as using a flat-headed toothbrush can be difficult and can lead to tartar buildup on the inner surfaces of their teeth over time. Furthermore, current U-shaped toothbrushes do not actually conform to the three sides of the teeth, failing to achieve true three-sided cleaning. Therefore, improvements to existing technology are necessary. Summary of the Invention

[0003] In order to solve the above technical problems, the purpose of this utility model is to provide a toothbrush head and an electric toothbrush that have a good cleaning power and high comfort, and that conforms well to the teeth.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: an electric toothbrush head, comprising a brush head and a connecting part, wherein the brush head is a U-shaped brush head and the brush head is slidably connected to the connecting part.

[0005] In the above technical solution, the connecting part includes a housing, and the brush head is slidably connected to the housing.

[0006] In a preferred embodiment, the brush head includes a bottom surface and two side surfaces arranged parallel to the connecting portion. The two side surfaces are respectively arranged on both sides of the bottom surface to form a U-shape. Brush bristles are evenly arranged on the bottom surface and side surfaces, and the brush bristles are all arranged inward to form a U-shape.

[0007] In the above technical solution, the bottom and sides of the brush head are made of elastic plastic, which provides a certain degree of elasticity during use and can effectively wrap around the teeth. The bristles are made of soft rubber, nylon bristles, and other materials.

[0008] In a further technical solution, the connecting part includes a reciprocating lead screw and a drive shaft, the reciprocating lead screw is fixedly disposed at the end of the drive shaft, and a sliding groove is provided on the reciprocating lead screw.

[0009] Brush heads come in two forms.

[0010] The first type involves a fixed connection between the two side surfaces and the bottom surface, with a sliding block fixedly provided on the bottom surface, and the sliding block cooperating with the sliding groove.

[0011] The system includes an auxiliary slider fixed to the bottom surface. The auxiliary slider has a concave arc-shaped surface that engages with the reciprocating lead screw. A sliding block is fixed to the arc-shaped surface. The auxiliary slider moves smoothly in conjunction with the reciprocating lead screw through the arc-shaped surface, allowing for better coordination with different phone operation modes.

[0012] In the above technical solution, the outer shell of the connecting part has a hole, and the sliding block passes through the hole and is installed in the sliding groove. When the drive shaft rotates, it drives the reciprocating screw to rotate. Since the sliding block is set in the sliding groove and is constrained by the guiding restriction of the outer shell, it will drive the sliding block to reciprocate along the axis of the drive shaft. Since the sliding block is fixed to the bottom surface of the brush head, it drives the brush head to reciprocate. The distance of the brush head's reciprocating motion can be adjusted, simulating a manual brushing distance of 8-12mm.

[0013] The second type involves two side surfaces and a bottom surface that are not fixedly connected. A sliding block is fixedly provided on the bottom surface, and the sliding block cooperates with the sliding groove. A linkage shaft is fixedly provided on the sliding block. A connecting block is fixedly provided on the side surface, and a shaft hole is provided on the connecting block. The end of the linkage shaft is movably disposed in the shaft hole.

[0014] The system includes an auxiliary slider fixed to the bottom surface. The auxiliary slider has a concave arc-shaped surface that engages with the reciprocating lead screw. A sliding block is fixed to the arc-shaped surface. The auxiliary slider moves smoothly in conjunction with the reciprocating lead screw through the arc-shaped surface, allowing for better coordination with different phone operation modes.

[0015] The connecting block is provided with a rotating shaft, the outside of the brush head is covered with a brush head shell, the brush head shell is fixed to the connecting part, the inside of the brush head shell is provided with a recessed groove, and the end of the rotating shaft is movably disposed in the groove.

[0016] In the above technical solution, the outer shell of the connecting part is provided with a hole, and the sliding block passes through the hole and is installed in the sliding groove. When the drive shaft rotates, it drives the reciprocating screw to rotate. Since the sliding block is set in the sliding groove and is constrained by the guiding restriction of the outer shell, it will drive the sliding block to reciprocate along the axis of the drive shaft. Since the sliding block is fixed to the bottom surface of the brush head, it will drive the bottom surface to reciprocate.

[0017] When the bottom surface moves, the linkage shaft causes the connecting blocks on the sides to move as well. However, due to the limiting effect of the rotating shaft (which can only rotate and not move), the sides move in the opposite direction. Since the bottom surface and the two sides are three separate surfaces, ultimately, when the bottom surface moves to the left, the two sides move to the right; and when the bottom surface moves to the right, the two sides move to the left.

[0018] An electric toothbrush comprising any of the above-mentioned electric toothbrush heads.

[0019] In the above technical solutions, the electric toothbrush can be a one-piece design, meaning the brush head and handheld unit are fixedly connected and cannot be disassembled; or it can be a detachable design, meaning the brush head is installed on the handheld unit in a quick-release manner, allowing for brush head replacement. The electric toothbrush handheld unit includes a power supply, a motor, and a control button. The control button controls the motor's on / off state, the power supply provides electrical energy to the motor, and the motor provides power to the drive shaft of the connecting part.

[0020] The advantages of this utility model are:

[0021] 1. The brush head of this utility model is U-shaped, which can effectively wrap around three sides of the teeth, and the brush head can make reciprocating motion, which can effectively clean teeth;

[0022] 2. The brush head of this invention is elastic and can better conform to the tooth surface;

[0023] 3. This utility model has a simple structure and low production cost, and can be quickly launched to the market. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0026] Figure 1 This is a schematic diagram of the electric toothbrush structure in Example 1;

[0027] Figure 2 This is a schematic diagram of the electric toothbrush head structure in Example 1;

[0028] Figure 3 This is a schematic diagram of the reciprocating lead screw and sliding block connection in Example 1;

[0029] Figure 4 This is an exploded view of the electric toothbrush from Example 1;

[0030] Figure 5 This is a schematic diagram of the electric toothbrush head structure in Example 2;

[0031] Figure 6 This is a schematic diagram of the reciprocating lead screw and sliding block connection in Example 2.

[0032] The components are: 1. Brush head; 2. Connecting part; 3. Brush bristles; 4. Bottom surface; 5. Side surface; 6. Reciprocating lead screw; 7. Drive shaft; 8. Sliding groove; 9. Sliding block; 10. Linkage shaft; 11. Rotating shaft; 12. Connecting block; 13. Handheld part; 14. Auxiliary slider. Detailed Implementation

[0033] Example 1: As shown in Figures 1-2, an electric toothbrush includes an electric toothbrush head and a handheld part 13. The electric toothbrush head includes a brush head 1 and a connecting part 2. The brush head 1 is a U-shaped brush head, and the brush head 1 is slidably connected to the connecting part 2. The handheld part 13 includes a power supply, a motor, and a control button. The control button controls the starting and stopping of the motor, the power supply provides electrical energy to the motor, and the motor provides power to the electric toothbrush head.

[0034] The connecting part 2 includes a housing, and the brush head 1 is slidably connected to the housing.

[0035] The connecting part 2 includes a reciprocating lead screw 6 and a drive shaft 7. The reciprocating lead screw 6 is fixedly installed at the end of the drive shaft 7, and a sliding groove 8 is provided on the reciprocating lead screw 6.

[0036] The brush head 1 includes a bottom surface 4 and two side surfaces 5 arranged parallel to the connecting part 2. The two side surfaces 5 are respectively arranged on both sides of the bottom surface 4 to form a U shape. Brush bristles 3 are evenly arranged on the bottom surface 4 and the side surfaces 5, and the brush bristles 3 are all arranged inward to form a U shape.

[0037] The bottom surface 4 and the side surface 5 of the brush head 1 are made of elastic plastic, which provides a certain degree of elasticity during use and can effectively wrap the teeth.

[0038] The two side surfaces 5 and the bottom surface 4 are fixedly connected. A sliding block 9 is fixedly installed on the bottom surface 4, and the sliding block 9 cooperates with the sliding groove 8. An auxiliary slider 14 is included, which is fixed to the bottom surface 4. The auxiliary slider 14 is provided with a concave arc-shaped surface, which cooperates with the reciprocating lead screw 6. The sliding block 9 is fixed on the arc-shaped surface.

[0039] The working principle of this embodiment:

[0040] The outer casing of the connecting part 2 has a hole, through which the sliding block 9 is installed in the sliding groove 8. When the drive shaft 7 rotates, it drives the reciprocating screw 6 to rotate. Since the sliding block 9 is located in the sliding groove 8 and is constrained by the guiding restriction of the outer casing, it will reciprocate along the axis of the drive shaft 7. Because the sliding block 9 is fixed on the bottom surface 4 of the brush head 1, it drives the brush head 1 to reciprocate, thus cleaning the teeth in all directions.

[0041] In this embodiment, the bristles 3 can be made of a toothpaste-free material. The bristles 3 comprise the following components: abrasive (1%–50% pumice), humectant (0.1%–15% silicone oil), potassium nitrate, fragrance, silica gel, etc. The pumice has a particle size of 80–200 mesh. The pumice is composed of the following parts by weight of pumice with different particle sizes: 1–3 parts of 80–100 mesh pumice, 8–12 parts of 140–160 mesh pumice, and 2–4 parts of 200–220 mesh pumice.

[0042] The bristles 3 are made with pumice stone and silicone oil, which have a polishing effect. This makes the toothbrush so that it does not need toothpaste to clean teeth. It only needs water to achieve excellent cleaning effect. Compared with traditional toothbrushes, it can reduce toothpaste waste disposal and reduce the unit cost and time of dental care.

[0043] Example 2: As Figure 3-4 As shown, an electric toothbrush includes an electric toothbrush head and a handheld part 13. The electric toothbrush head includes a brush head 1 and a connecting part 2. The brush head 1 is a U-shaped brush head, and the brush head 1 is slidably connected to the connecting part 2. The handheld part 13 includes a power supply, a motor, and a control button. The control button controls the motor to start and stop, the power supply provides electrical energy to the motor, and the motor provides power to the electric toothbrush head.

[0044] The connecting part 2 includes a housing, and the brush head 1 is slidably connected to the housing.

[0045] The connecting part 2 includes a reciprocating lead screw 6 and a drive shaft 7. The reciprocating lead screw 6 is fixedly installed at the end of the drive shaft 7, and a sliding groove 8 is provided on the reciprocating lead screw 6.

[0046] The brush head 1 includes a bottom surface 4 and two side surfaces 5 arranged parallel to the connecting part 2. The two side surfaces 5 are respectively arranged on both sides of the bottom surface 4 to form a U shape. Brush bristles 3 are evenly arranged on the bottom surface 4 and the side surfaces 5, and the brush bristles 3 are all arranged inward to form a U shape.

[0047] The bottom surface 4 and the side surface 5 of the brush head 1 are made of elastic plastic, which provides a certain degree of elasticity during use and can effectively wrap the teeth.

[0048] The two side surfaces 5 and the bottom surface 4 are not fixedly connected. A sliding block 9 is fixedly installed on the bottom surface 4. The sliding block 9 cooperates with the sliding groove 8. A linkage shaft 10 is fixedly installed on the sliding block 9. A connecting block 12 is fixedly installed on the side surface 5. A shaft hole is provided on the connecting block 12. The end of the linkage shaft 10 is movably installed in the shaft hole.

[0049] It includes an auxiliary slider 14, which is fixed to the bottom surface 4. The auxiliary slider 14 has a concave arc surface that cooperates with the reciprocating lead screw 6. A sliding block 9 is fixed to the arc surface.

[0050] A rotating shaft 11 is provided on the connecting block 12. The brush head 1 is covered with a brush head shell, which is fixed to the connecting part 2. A recessed groove is provided inside the brush head shell, and the end of the rotating shaft 11 is movably disposed in the groove.

[0051] The working principle of this embodiment is as follows: A hole is provided on the outer shell of the connecting part 2, and the sliding block 9 passes through the hole and is installed in the sliding groove 8. When the drive shaft 7 rotates, it drives the reciprocating screw 6 to rotate. Since the sliding block 9 is located in the sliding groove 8 and is constrained by the guiding restriction of the outer shell, it will reciprocate along the axis of the drive shaft 7. Because the sliding block 9 is fixed to the bottom surface 4 of the brush head 1, it will drive the bottom surface 4 to reciprocate.

[0052] When the bottom surface 4 moves, the linkage shaft 10 causes the connecting block 12 of the side surface 5 to move as well. However, due to the limiting effect of the rotating shaft 11 (which can only rotate and not move), the side surface 5 moves in the opposite direction. Since the bottom surface 4 and the two side surfaces 5 are three separate surfaces, ultimately, when the bottom surface 4 moves to the left, the two side surfaces 5 move to the right; and when the bottom surface 4 moves to the right, the two side surfaces 5 move to the left.

[0053] In this embodiment, the three bristles 3 of the brush head 1 can move in different directions simultaneously, which can clean teeth more effectively.

Claims

1. An electric toothbrush head, comprising a brush head, a connecting portion, characterized in that: The brush head is a U-shaped brush head, and the brush head is slidably connected to the connecting part. The connecting part includes a reciprocating lead screw and a drive shaft. The reciprocating lead screw is fixedly disposed at the end of the drive shaft, and a sliding groove is provided on the reciprocating lead screw. The brush head includes a bottom surface and two side surfaces arranged parallel to the connecting part. The two side surfaces are respectively disposed on both sides of the bottom surface to form a U-shape. Brush bristles are evenly disposed on the bottom surface and the side surfaces, and the brush bristles are all arranged inward to form a U-shape. The two side surfaces and the bottom surface are fixedly connected. A sliding block is fixedly disposed on the bottom surface, and the sliding block cooperates with the sliding groove. A linkage shaft is fixedly disposed on the sliding block. A connecting block is fixedly disposed on the side surface, and a shaft hole is provided on the connecting block. The end of the linkage shaft is movably disposed in the shaft hole.

2. The electric toothbrush brush head of claim 1, wherein: The system includes an auxiliary slider, which is fixed to the bottom surface. The auxiliary slider has a concave arc-shaped surface that cooperates with the reciprocating lead screw. The sliding block is fixed to the arc-shaped surface.

3. The electric toothbrush brush head of claim 1, wherein: The connecting block is provided with a rotating shaft, the outside of the brush head is covered with a brush head shell, the brush head shell is fixed to the connecting part, the inside of the brush head shell is provided with a recessed groove, and the end of the rotating shaft is movably disposed in the groove.

4. The electric toothbrush brush head of claim 3, wherein: The system includes an auxiliary slider, which is fixed to the bottom surface. The auxiliary slider has a concave arc-shaped surface that cooperates with the reciprocating lead screw. The sliding block is fixed to the arc-shaped surface.

5. An electric toothbrush characterized by: It includes the electric toothbrush head as described in any one of claims 1-4.

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