CN204655172U - Brush head structure of an electric toothbrush - Google Patents

Abstract

A brush head structure of an electric toothbrush comprises a shell of a brush head, a transmission rod and an eccentric block, wherein the transmission rod and the eccentric block are arranged in the shell; a sleeve is arranged at the bottom end of the transmission rod and is connected with the transmission rod through an elastic material; the top end of the transmission rod is connected with a connecting rod, the connecting rod is connected with the eccentric block, and the circular plate is connected with the eccentric block; a rotating shaft is arranged on the eccentric block, and one end of the rotating shaft, which is far away from the circular plate, is connected to a circular hole arranged in the shell; the eccentric block is provided with an arc-shaped groove, a limiting shaft for limiting the arc-shaped groove is arranged above the arc-shaped groove, and the upper end of the limiting shaft is fixed to the top of the shell. Has the advantages that: the arc-shaped groove arranged on the eccentric block and the limiting shaft for limiting the arc-shaped groove enable the rotating mode of the bristles and the circular plate to be simpler. The elastic material connected between the transmission rod and the casing provides restoring force for the rotation of the circular plate, and the device is simple in structure and low in cost.

Description

Brush head structure of an electric toothbrush

technical field

The utility model relates to the field of electric toothbrushes, in particular to a brush head structure of an electric toothbrush.

Background technique

Electric toothbrushes will become an important member of public health products. Surveys show that electric toothbrushes are more scientific and effective than ordinary toothbrushes. Can more thoroughly remove dental plaque, reduce gingivitis and gingival hemorrhage, also be the generally popular daily necessities of present European and American many countries. The electric toothbrush rotates quickly to generate high-frequency vibrations on the brush head, instantly decomposing the toothpaste into fine foam, and deeply cleans the gaps between the teeth; at the same time, the vibration of the bristles can promote blood circulation in the oral cavity and have an unexpected massage effect on the gum tissue . Wherein the toothbrush head is the place that needs to be replaced frequently, so it is particularly necessary to set a kind of electric toothbrush head with simple structure, low cost and easy to replace at the same time.

Utility model content

The utility model provides a brush head structure of an electric toothbrush, which solves the technical problems that the structure of the electric toothbrush is simple, low in cost and easy to replace.

In order to solve the problems of the technologies described above, the technical solution adopted by the utility model is:

An electric toothbrush head structure, comprising a shell of the brush head, bristles, and a circular plate, the bristles are fixed on the circular plate; a transmission rod and an eccentric block are arranged inside the shell; The bottom end is provided with a casing, and the casing is connected to the transmission rod through an elastic material; the top end of the transmission rod is connected to a connecting rod, and the connecting rod is connected to the eccentric block, and the circular plate is connected to the eccentric block connection; the eccentric block is provided with a rotating shaft, and the end of the rotating shaft away from the circular plate is connected to the round hole arranged inside the shell; the eccentric block is provided with an arc-shaped groove, and the A limiting shaft for limiting the arc-shaped groove is arranged above the arc-shaped groove, and the upper end of the limiting shaft is fixed on the top of the housing.

Further, the outer casing has a narrow top and a wide bottom, the elastic material is a spring, the spring is sleeved on the outside of the transmission rod, the bottom end of the spring is connected to the casing, and the spring the top end of the housing against the inside of the housing.

Furthermore, the housing includes a plug, and the inside of the plug is symmetrically provided with a card slot, and a groove is connected to the card slot, and the width of the card slot is smaller than the width of the groove.

Further, an inner chamber is provided below the casing, sliding holes are symmetrically arranged on both sides of the inner chamber, and locking holes are symmetrically arranged on both sides perpendicular to the sliding holes.

Optionally, the clamping hole is a square clamping hole.

Preferably, the upper part of the housing is provided with drain holes for draining water.

Preferably, the drainage holes are arranged symmetrically on both sides of the upper part of the housing.

Preferably, a collar is provided on the outside of the plug, and on the collar, a vent hole to prevent jamming is provided at a position corresponding to the slot.

Preferably, the housing is integrally formed of plastic.

Preferably, the bristles are set to be low in the middle and high around.

The brush head structure of the electric toothbrush provided by the utility model has a simple structural arrangement, and the arc-shaped groove provided on the eccentric block and the limiting shaft for limiting the position make the rotation of the bristles and the circular plate simpler. The elastic material connected between the transmission rod and the casing provides restoring force for the rotation of the circular plate, and the structure is simple and the cost is low.

Description of drawings

Fig. 1 is a schematic diagram of the decomposition structure of the brush head structure of an electric toothbrush of the present invention;

Fig. 2 is a partially enlarged schematic diagram of a plug structure of an electric toothbrush head structure of the present invention;

Fig. 3 is a partially enlarged schematic diagram of a casing of a brush head structure of an electric toothbrush according to the present invention;

Fig. 4 is a schematic diagram of the shell structure of the brush head structure of an electric toothbrush of the present invention;

Detailed ways

Below in conjunction with the accompanying drawings, specifically illustrate the implementation of the utility model, the accompanying drawings are for reference and description only, and do not constitute a limitation to the patent protection scope of the utility model.

As shown in Figures 1, 2, 3 and 4, an electric toothbrush head structure includes a shell 1 of the brush head, bristles 3, and a disc 2, and the bristles 3 are fixed on the disc 2; The inside of the shell 1 is provided with a transmission rod 4 and an eccentric block 5; a casing 6 is arranged at the bottom end of the transmission rod 4, and the casing 6 is connected with the transmission rod 4 through an elastic material 7; the transmission rod The top end of 4 is connected with connecting rod 8, and described connecting rod 8 is connected with described eccentric block 5, and described circular plate 2 is connected with described eccentric block 5; The end of the rotating shaft 9 away from the circular plate 2 is connected to the circular hole 15 arranged inside the housing 1; the eccentric block 5 is provided with an arc-shaped groove 10, and above the arc-shaped groove 10 is provided with The limit shaft 11 for limiting the arc groove 10 , the upper end of the limit shaft 11 is fixed on the top of the housing 1 . The housing 1 is a structure with a narrow top and a wide bottom. In this embodiment, the elastic material 7 is a spring, and the spring is sleeved on the outside of the transmission rod 4, and the bottom end of the spring is connected to the The casing 6 , the top end of the spring is against the inside of the casing 1 . The housing 1 includes a plug 12, and the inside of the plug 12 is symmetrically provided with a slot 121, and a groove 122 is connected to the slot 121, and the width of the slot 121 is smaller than that of the groove 122. width. An inner chamber 61 is provided below the casing 6 , sliding holes 62 are symmetrically arranged on both sides of the inner chamber 61 , and locking holes 63 are symmetrically arranged on both sides perpendicular to the sliding hole 62 . The locking hole 63 is a square locking hole. The upper part of the housing 1 is provided with a drain hole 13 for draining water. The drainage holes 13 are symmetrically arranged on both sides of the upper part of the casing 1 . A collar 14 is provided on the outside of the plug 12 , and on the collar 14 , a vent hole 141 for preventing jamming is provided at a position corresponding to the slot 121 . The shell 1 is integrally molded by plastic. The bristles 3 are set to be low in the middle and high around.

The brush head structure of the electric toothbrush provided by the utility model has a simple structural arrangement, and the arc-shaped groove provided on the eccentric block and the limiting shaft for limiting the position make the rotation of the bristles and the circular plate simpler. The elastic material connected between the transmission rod and the casing provides restoring force for the rotation of the circular plate, and the structure is simple and the cost is low.

The above disclosures are only preferred embodiments of the present utility model, and cannot be used to limit the protection scope of the present utility model. Therefore, the equivalent changes made according to the patent scope of the utility model still belong to the scope covered by the utility model. .

Claims (10)

1. an electric toothbrush head structure, comprises the shell of brush, bristle, plectane, and described bristle is fixed on described plectane; The inside of described shell is provided with drive link, eccentric block; It is characterized in that: the bottom of described drive link is provided with sheath body, described sheath body is connected with drive link by elastomeric material; The top of described drive link is connected with connecting rod, and described connecting rod is connected with described eccentric block, and described plectane is connected with described eccentric block; Described eccentric block is provided with turning cylinder, described turning cylinder be connected on the circular hole of the inside being arranged on described shell away from plectane one end; Described eccentric block is provided with arc groove, is provided with and carries out spacing limit shaft to described arc groove above described arc groove, the upper end of described limit shaft is fixed on the top of described shell.

2. a kind of electric toothbrush head structure according to claim 1, described shell is up-narrow and down-wide structure; It is characterized in that: described elastomeric material is spring, and described spring housing is connected on the outside of described drive link, the bottom of described spring is connected to described sheath body, and the top of described spring props up the inside of described shell.

3. a kind of electric toothbrush head structure according to claim 1 and 2, described shell comprises plug, it is characterized in that: be provided with draw-in groove, what be connected with described draw-in groove is also provided with groove, and the width of described draw-in groove is less than the width of described groove the internal symmetry of described plug.

4. a kind of electric toothbrush head structure according to claim 1, is characterized in that: the below of described sheath body is provided with inner chamber, described inner chamber lateral symmetry be provided with slide opening, the lateral symmetry vertical with described slide opening is provided with hole clipping.

5. a kind of electric toothbrush head structure according to claim 4, is characterized in that: described hole clipping is square hole clipping.

6. a kind of electric toothbrush head structure according to claim 1, is characterized in that: the top of described shell is provided with the osculum for draining.

7. a kind of electric toothbrush head structure according to claim 6, is characterized in that: described osculum is symmetricly set on the both sides on the top of described shell.

8. a kind of electric toothbrush head structure according to claim 3, is characterized in that: have the collar in the outer setting of described plug, on the described collar, is provided with prevents stuck air-vent with corresponding position, described draw-in groove position.

9. a kind of electric toothbrush head structure according to claim 1, is characterized in that: described shell is integrally moulded.

10. a kind of electric toothbrush head structure according to claim 1, is characterized in that: described bristle is set to middle low, and surrounding is high.