Electric toothbrush replacement head and electric toothbrush

Abstract

The utility model provides an electric toothbrush replacement head and an electric toothbrush, the electric toothbrush replacement head comprises a brush head, one end of the brush head is provided with a first cavity, a tail plug is arranged in the first cavity, and the tail plug is provided with a second cavity; a first clamping block is arranged on the inner wall of the second cavity, a first tail cover elastic protruding point is arranged on the first clamping block, a limiting bone is arranged on one side of the first clamping block, a second clamping block is arranged at one end of the limiting bone, and a second tail cover elastic protruding point is arranged on the second clamping block. A third clamping block is arranged at one end of the first clamping block, and a tail cover elastic buckle is arranged at one end of the third clamping block. The replacement head of the electric toothbrush and the electric toothbrush are convenient for users to use, convenient to disassemble, clean and disinfect, more suitable in plugging and unplugging hand feeling, capable of improving the experience of difficult plugging and unplugging, and more in line with the use habits and better experience of the public.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric toothbrush field especially, it is electric toothbrush replacement head and electric toothbrush. BACKGROUND

[0002] With the rapid development of science and technology, toothbrush is also updating, from the previous manual toothbrush to the present electric toothbrush, becomes a certain trend. The original intention of electric toothbrush is designed and developed for those who are inconvenient or lazy, later, it is popularized, anyone can use, opens electric toothbrush button automatic cleaning tooth, and has multiple cleaning mode, is very convenient. Normal electric toothbrush, the brush head is interference fit with the output shaft, and the brush head presents synchronous motion with the reciprocating vibration of the motor, plays the role of cleaning teeth, but this brush head, namely the electric toothbrush that presents normal working mode, is easy to cause the problem of toothpaste splashing before brushing teeth, and after foaming during brushing teeth, the brush head of electric toothbrush stretches the cavity and the problem of foam splashing, causes the poor user experience. SUMMARY

[0003] The utility model discloses a kind of electric toothbrush replacement head and electric toothbrush, facilitate user use, facilitate dismounting cleaning disinfection, plugging hand feeling is more suitable, improve the experience of difficult plugging, more in line with the use habit of public and better experience.

[0004] To achieve the above object, the utility model provides a kind of electric toothbrush replacement head, including brush head, the one end of the brush head is provided with first cavity, the first cavity is provided with tail plug, the second cavity is set up on the tail plug;

[0005] First clamping block is set up on the second cavity inner wall, the first clamping block is provided with first tail cover elastic protrusion, the one side of the first clamping block is provided with limit bone, the one end of the limit bone is provided with second clamping block, the second clamping block is provided with second tail cover elastic protrusion;

[0006] The one end of the first clamping block is provided with third clamping block, the one end of the third clamping block is provided with tail cover elastic buckle.

[0007] Preferably, the tail plug is provided with motor shaft, the tail plug is located at one end of motor shaft, the other end of the motor shaft is provided with motor;

[0008] First recess is set up on the motor shaft, and the first recess is connected with tail cover elastic buckle.

[0009] Preferably, the first tail cover elastic protrusion and the second tail cover elastic protrusion are located at both sides of the motor shaft respectively.

[0010] Preferably, one end of the first clamping block and the second clamping block is provided with a convex ring, the convex ring is connected with the first clamping block and the second clamping block, one end of the brush head is provided with a third groove, and the convex ring is located at the third groove.

[0011] Preferably, the first clamping block is provided with a first through hole on both sides, and the first through hole is provided with a second groove at one end and located on both sides of the first clamping block.

[0012] Preferably, the convex ring is connected with a base provided on one side of the convex ring, the base is also connected with the second clamping block, the base is provided with a second through hole, the third clamping block is located in the second through hole, the first clamping block is provided with a connecting structure, and the connecting structure is connected with the base.

[0013] Preferably, the outer wall of the tail plug is provided with a plurality of first protrusions, and the first protrusions are located on the base.

[0014] Preferably, the limiting bone is located on the inner wall of the first cavity.

[0015] Preferably, a distance is arranged between the first clamping block and the third clamping block.

[0016] An electric toothbrush comprises a replacement head of an electric toothbrush.

[0017] Therefore, the electric toothbrush replacement head and the electric toothbrush have the following technical effects:

[0018] (1) The tail plug is injection molded by using POM material with good wear resistance, and the first clamping block, the second clamping block and the third clamping block with elasticity are designed on both sides of the tail plug, so that the complex structure of the excess hardware piece on the market is avoided, and unnecessary cost is saved,

[0019] (2) The elasticity of the first clamping block, the second clamping block and the third clamping block of the tail plug can absorb the excess noise gap, and the use experience is more comfortable. The elastic compensation filling structure can fill the wear gap, and the uncomfortable experience caused by the large noise due to the fast use to the life will not occur.

[0020] (3) The first clamping block, the second clamping block and the third clamping block are designed on the tail plug, so that the service life of the replacement toothbrush head is longer, and the fatigue resistance is strong. When the vibration amplitude of the toothbrush head is large under the full power condition, the excess or excess energy can be cushioned and absorbed, so that the gingival pain or damage will not occur, and the tooth brushing experience is more comfortable.

[0021] (4) The first tail cover elastic protrusion and the first tail cover elastic protrusion are designed on the first clamping block and the second clamping block of the tail plug, the first tail cover elastic protrusion and the first tail cover elastic protrusion pre-press the motor shaft, the motor shaft is prevented from being skewed, the motor shaft is fixed, the motor shaft is prevented from rotating, and the purpose of fastening is achieved.

[0022] (5) The hard glue lower end of the tail plug is increased with the tail cover elastic buckle to prevent the toothbrush head from being automatically loosened in the working vibration to the motor shaft direction. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 A schematic view of an electric toothbrush replacement head and an electric toothbrush of the present application;

[0024] Figure 2 A schematic view of a tail plug;

[0025] Figure 3 A schematic view of another angle of a tail plug;

[0026] Figure 4 An assembly sectional view of the brush head and the tail plug and the motor shaft.

[0027] REFERENCE NUMERALS

[0028] 1, brush head; 2, tail plug; 3, first clamping block; 4, first tail cover elastic protrusion; 5, limiting bone; 6, second clamping block; 7, second tail cover elastic protrusion; 8, third clamping block; 9, tail cover elastic buckle; 10, motor shaft; 11, motor; 12, first groove; 13, protruding ring; 14, third groove; 15, second groove; 16, first through hole; 17, second through hole; 18, base; 19, connecting structure; 20, first protrusion. DETAILED DESCRIPTION

[0029] The technical scheme of the present application is further described below by means of the drawings and examples.

[0030] Unless otherwise defined, the technical terms or scientific terms used in the present application shall have the usual meanings understood by those skilled in the art to which the present application belongs.

[0031] Example 1

[0032] An electric toothbrush replacement head, comprising a brush head 1, one end of the brush head 1 is provided with a first cavity, a tail plug 2 is arranged in the first cavity, and a second cavity is arranged on the tail plug 2;

[0033] A first clamping block 3 is arranged on the inner wall of the second cavity, a first tail cover elastic protrusion 4 is arranged on the first clamping block 3, a limiting bone 5 is arranged on one side of the first clamping block 3, a second clamping block 6 is arranged at one end of the limiting bone 5, and a second tail cover elastic protrusion 7 is arranged on the second clamping block 6.

[0034] The compression effect of the first tail cover elastic protrusion 4 and the second tail cover elastic protrusion 7: the first tail cover elastic protrusion 4 and the second tail cover elastic protrusion 7 are respectively located on both sides of the motor shaft 10, tightly pressing the motor shaft 10, and realizing positioning and compression.

[0035] One end of the first clamping block 3 is provided with a third clamping block 8, one end of the third clamping block 8 is provided with a tail cover elastic buckle 9, which prevents the toothbrush head 1 from being automatically loosened in the direction of the motor shaft 10 during work vibration.

[0036] The tail plug 2 is injection molded by using POM material with good wear resistance, and the first clamping block 3, the second clamping block 6 and the third clamping block 8 with elasticity are designed on both sides of the tail plug 2, avoiding the complex structure of the excess hardware pieces on the market and saving unnecessary cost.

[0037] The elasticity of the first clamping block 3, the second clamping block 6 and the third clamping block 8 of the tail plug 2 can absorb the excess noise of the gap, and the use experience is more comfortable. The elastic compensation filling structure can fill the wear gap, and the noise will not be too large due to the fast use of the life.

[0038] The design of the first clamping block 3, the second clamping block 6 and the third clamping block 8 on the tail plug 2 makes the replacement toothbrush head 1 have a longer life and strong fatigue resistance. When the vibration amplitude of the toothbrush head 1 is too large under full power, the excess or excess energy can be absorbed, which will not cause gingival pain or harm, and the tooth brushing experience is more comfortable.

[0039] The motor shaft 10 is arranged in the tail plug 2, one end of the tail plug 2 is located in the motor shaft 10, the other end of the motor shaft 10 is provided with a motor 11, the motor 11 provides power, the tail plug 2 elastically presses the motor shaft 10 and cushions the shock, and serves as an interface of the motor shaft 10, facilitating replacement of the brush head 1 assembly

[0040] The first recess 12 is arranged on the motor shaft 10 and connected with the tail cover elastic buckle 9.

[0041] The first tail cover elastic convex point 4 and the second tail cover elastic convex point 7 are respectively located on both sides of the motor shaft 10. The first recess 12 is arranged on the motor shaft 10 and cooperates with the tail cover elastic buckle 9 to prevent the motor shaft 10 from sliding upward.

[0042] One end of the first clamping block 3 and the second clamping block 6 is provided with a convex ring 13, the convex ring 13 is connected with the first clamping block 3 and the second clamping block 6, one end of the brush head 1 is provided with a third recess 14, and the convex ring 13 is located at the third recess 14.

[0043] The first clamping block 3 is provided with a first through hole 16 on both sides, and the first through hole 16 is provided with a second recess 15 on both sides of the first clamping block 3.

[0044] The outer wall of the tail plug 2 is provided with a plurality of first protrusions 20, and the first protrusions 20 are located on the base 18.

[0045] The convex ring 13 is connected with the base 18 arranged on one side of the convex ring 13, the base 18 is also connected with the second clamping block 6, the second through hole 17 is arranged on the base 18, the third clamping block 8 is located at the third through hole, the connecting structure 19 is arranged on the first clamping block 3, and the connecting structure 19 is connected with the base 18.

[0046] The limiting bone 5 is arranged on the inner wall of the first cavity and limits the depth direction of the motor shaft 10.

[0047] The first clamping block 3 and the third clamping block 8 are arranged with a distance, so that buffer allowance is provided.

[0048] An electric toothbrush comprises an electric toothbrush replacement head.

[0049] The tail plug 2 is arranged in the brush head 1, a plurality of first protrusions 20 are arranged on the tail cover, the first protrusions 20 of the tail plug 2 are in interference fit with the inner wall of the brush head 1, so that the tight fit effect of buckling is achieved, and a finished brush head 1 is formed.

[0050] When the motor 11 is inserted into the brush head 1, the limiting bone 5 in the brush head 1 limits the depth direction of the motor shaft 10.

[0051] The first tail cover elastic protrusion 4 and the second tail cover elastic protrusion 7 are tightly pressed on the motor shaft 10 from left and right, so that the motor shaft 10 is positioned and tightly pressed.

[0052] The tail cover elastic buckle 9 is matched with the first groove 12 of the motor shaft 10, so that the tail cover elastic buckle 9 cannot slide upwards along the motor shaft 10.

[0053] Therefore, the electric toothbrush replacement head and the electric toothbrush are convenient for users to use, convenient for dismounting, cleaning and disinfecting, and suitable for plugging and unplugging, the experience of difficult plugging and unplugging is improved, and the use habit of the public and better experience are met.

[0054] Finally, it should be noted that: the above embodiments are only used to illustrate the technical scheme of the utility model and not to limit it, although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical scheme of the utility model can still be modified or replaced, and these modifications or replacements cannot make the modified technical scheme deviate from the spirit and range of the technical scheme of the utility model.

Claims

1. An electric toothbrush refill head characterized by, Including brush head, one end of the brush head is provided with a first cavity, a tail plug is arranged in the first cavity, and a second cavity is arranged on the tail plug; A first clamping block is arranged on the inner wall of the second cavity, a first tail cover elastic protrusion is arranged on the first clamping block, a limiting bone is arranged on one side of the first clamping block, a second clamping block is arranged at one end of the limiting bone, and a second tail cover elastic protrusion is arranged on the second clamping block; One end of the first clamping block is provided with a third clamping block, and a tail cover elastic buckle is arranged at one end of the third clamping block.

2. A replacement head for an electric toothbrush according to claim 1, wherein, A motor shaft is arranged in the tail plug, the tail plug is located at one end of the motor shaft, and a motor is arranged at the other end of the motor shaft. A first groove is arranged on the motor shaft, and the first groove is connected with the tail cover elastic buckle.

3. A replacement head for an electric toothbrush according to claim 1, wherein, The first tail cover elastic protrusion and the second tail cover elastic protrusion are respectively located on both sides of the motor shaft.

4. The electric toothbrush refill head of claim 1, wherein, One end of the first clamping block and the second clamping block is provided with a convex ring, the convex ring is connected with the first clamping block and the second clamping block, one end of the brush head is provided with a third groove, and the convex ring is located in the third groove.

5. The electric toothbrush refill head of claim 1, wherein, First through holes are arranged on both sides of the first clamping block, and a second groove is arranged at one end of the first through hole and located on both sides of the first clamping block.

6. A replacement head for an electric toothbrush according to claim 4, wherein, The convex ring is connected with a base arranged on one side of the convex ring, the base is also connected with the second clamping block, a second through hole is arranged on the base, the third clamping block is located in the second through hole, a connecting structure is arranged on the first clamping block, and the connecting structure is connected with the base.

7. A replacement head for an electric toothbrush according to claim 6, wherein, A plurality of first protrusions are arranged on the outer wall of the tail plug, and the first protrusions are located on the base.

8. A replacement head for an electric toothbrush according to claim 1, wherein, The limiting bone is located on the inner wall of the first cavity.

9. The electric toothbrush refill head of claim 1, wherein, A distance is arranged between the first clamping block and the third clamping block.

10. An electric toothbrush characterized by comprising: The electric toothbrush replacement head comprises the electric toothbrush replacement head according to any one of claims 1-9.

Images