Brush head part of electric toothbrush

Abstract

The utility model relates to the technical field of electric toothbrushes, in particular to a brush head component of an electric toothbrush, which comprises a soft rubber part, a plurality of bristle plates and bristle bundles, one side of the soft rubber part is fixedly connected with the plurality of bristle plates, the inner side of each bristle plate is fixedly connected with the plurality of bristle bundles, and the bottom end of the soft rubber part is fixedly connected with a brush rod component. The brush rod assembly comprises a hollow rod, an inter-rod curved groove is formed in the outer side of the hollow rod, a mounting hole is formed in the inner side of the hollow rod, a tray is fixedly connected to the inner side of the hollow rod, a limiting disc is fixedly connected to the inner side of the hollow rod, and a limiting groove is formed in the inner side of the limiting disc; according to the toothbrush, the stability of connection between the brush head and the brush handle is guaranteed, meanwhile, the convenience of replacement of the brush head is improved, a user only needs to simply extrude the anti-skid air bag strip, the brush head can be easily disassembled, and the use convenience of the user is improved.

Description

Technical Field

[0001] This utility model relates to the field of electric toothbrush technology, specifically to a brush head component for an electric toothbrush. Background Art

[0002] The brush head is an important component of an electric toothbrush. Most of the cleaning function of the brush head is achieved through its specially designed bristles. The bristles are responsible for reaching deep into the gaps between teeth and the surface of teeth, effectively removing dental plaque and food debris, and preventing tooth decay and periodontal disease. Different materials and shapes of bristles can adapt to different oral environments and needs, such as sensitive teeth and malocclusion.

[0003] The compatibility of the brush head with the electric toothbrush is also important, ensuring a perfect fit with the electric toothbrush body so that the bristles move in a special way to achieve the best cleaning effect.

[0004] To ensure the compatibility of the electric toothbrush head, the brush head and handle are connected tightly. Since the brush head is inevitably subjected to external forces during use, it will undergo slight deformation, which makes the connection between the brush head and handle even stronger. This results in more force being required when replacing the brush head, which in turn affects the user experience. Therefore, a brush head component for an electric toothbrush is proposed to address the above issues. Utility Model Content

[0005] The purpose of this utility model is to provide a brush head component for an electric toothbrush, in order to solve the problem that the brush head will inevitably be subjected to external forces during use, resulting in slight deformation. This makes the connection between the brush head and the handle more secure, requiring more force to replace the brush head, which in turn affects the user experience.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A brush head component for an electric toothbrush includes a soft rubber part, bristle plates, and bristle bundles. Several bristle plates are fixedly connected to one side of the soft rubber part, and multiple bristle bundles are fixedly connected to the inner side of the bristle plates. A brush handle assembly is fixedly connected to the bottom end of the soft rubber part. An airbag assembly is fixedly installed inside the brush handle assembly, and a connecting sleeve assembly is fixedly connected to the inner side of the soft rubber part. The brush handle assembly includes a hollow rod with an inter-rod groove on its outer side and a mounting hole on its inner side. A tray is fixedly connected to the inner side of the hollow rod, and a limiting plate is fixedly connected to the inner side of the hollow rod. An opening is formed on the inner side of the limiting plate. The hollow rod has a limiting groove and a connecting insertion hole at its bottom end. The airbag assembly includes an airbag ball, a short tube fixedly connected to the inner side of the airbag ball, an anti-slip airbag strip fixedly connected to one end of the short tube, and a vertical tube fixedly connected to the lower end of the airbag ball. The connecting sleeve assembly includes a sealing gasket, a retaining plate fixedly connected to the upper end of the sealing gasket, a grooved retaining sleeve fixedly connected to the upper end of the retaining plate, a retaining block fixedly connected to the inner side of the grooved retaining sleeve, an air chamber opened inside the grooved retaining sleeve, a piston block slidably connected to the inner side of the air chamber, an air inlet hole opened at the upper end of the air chamber, and a sealing strip fixedly connected to the inner side of the air chamber.

[0008] As a further optimization of this utility model, the inter-bar grooves are provided in a plurality of manner, and are arranged in a circular array on the outside of the hollow bar. The mounting holes are provided in a plurality of manner, and the positions of the mounting holes correspond to the positions of the inter-bar grooves.

[0009] As a further optimization of this utility model, the following features are provided: the projection of the tray in the vertical direction is annular; the central axis of the tray and the central axis of the hollow rod are on the same straight line; and the inner side of the limiting groove and the outer side of the card plate have a zero-clearance fit.

[0010] As a further optimization of this utility model, the outer side of the airbag ball is attached to the inner side of the tray, and a number of short tubes are provided. The short tubes are arranged in a ring array with the center of the airbag ball as the center, and the number of short tubes corresponds to the number of anti-slip airbag strips.

[0011] As a further optimization of this utility model, the following features are provided: the outer side of the short tube is fitted with the inner side of the mounting hole; a portion of the anti-slip airbag strip is exposed outside the groove between the rods; the vertical tube and the airbag ball are on the same axis; and the outer side of the bottom end of the vertical tube is fitted with the inner side of the air inlet.

[0012] As a further optimization of this utility model, a hollow rod is bonded to the outer side of the sealing gasket, the upper end face of the sealing gasket and the bottom end face of the limiting plate are on the same horizontal plane, and the central axis of the sealing gasket and the central axis of the connecting hole are on the same straight line.

[0013] As a further optimization of this utility model, the included angle between the card block and the grooved sleeve is 90°, the outer side of the piston block is in contact with the inner side of the air chamber, and two sealing strips are provided, which are symmetrically distributed on the inner side of the grooved sleeve.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] In this invention, the brush handle assembly, airbag assembly, and connecting sleeve assembly ensure the stability of the connection between the brush head and the handle while improving the convenience of replacing the brush head. Users can easily disassemble the brush head by simply squeezing the anti-slip airbag strip, which improves user convenience and reduces the risk of damage to the electric toothbrush due to improper operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the installation position structure of the connecting sleeve assembly of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall exploded structure of this utility model;

[0019] Figure 4 This is a cross-sectional view of the brush rod assembly of this utility model;

[0020] Figure 5 This is a schematic diagram of the airbag assembly structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the connecting sleeve assembly structure of this utility model;

[0022] Figure 7 This is a cross-sectional view of the connecting sleeve assembly of this utility model.

[0023] In the diagram: 1. Soft rubber part; 2. Bristle plate; 3. Bristle bundle; 4. Brush rod assembly; 41. Hollow rod; 42. Inter-rod groove; 43. Mounting hole; 44. Tray; 45. Limiting plate; 46. Limiting groove; 47. Connecting socket; 5. Airbag assembly; 51. Airbag ball; 52. Short tube; 53. Anti-slip airbag strip; 54. Vertical tube; 6. Connecting sleeve assembly; 61. Sealing gasket; 62. Clamping plate; 63. Grooved clamping sleeve; 64. Clamping block; 65. Air chamber; 66. Piston block; 67. Air inlet; 68. Sealing strip. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0026] Please see Figure 1-7 , the utility model provides a technical solution:

[0027] A brush head component for an electric toothbrush includes a soft rubber part 1, bristle plates 2, and bristle bundles 3. Several bristle plates 2 are fixedly connected to one side of the soft rubber part 1, and multiple bristle bundles 3 are fixedly connected to the inner side of the bristle plates 2. A brush handle assembly 4 is fixedly connected to the bottom end of the soft rubber part 1. An airbag assembly 5 is fixedly installed inside the brush handle assembly 4, and a connecting sleeve assembly 6 is fixedly connected to the inner side of the soft rubber part 1. The brush handle assembly 4 includes a hollow rod 41, with an inter-rod groove 42 on the outer side of the hollow rod 41 and a mounting hole 43 on the inner side. A tray 44 is fixedly connected to the inner side of the hollow rod 41, and a limiting plate 45 is fixedly connected to the inner side of the hollow rod 41. A limiting groove 46 is formed inside the limiting plate 45. The hollow rod 41 has a connection hole 47 at its bottom end. The airbag assembly 5 includes an airbag ball 51. A short tube 52 is fixedly connected to the inside of the airbag ball 51. An anti-slip airbag strip 53 is fixedly connected to one end of the short tube 52. A vertical tube 54 is fixedly connected to the lower end of the airbag ball 51. The connecting sleeve assembly 6 includes a sealing gasket 61. A retaining plate 62 is fixedly connected to the upper end of the sealing gasket 61. A grooved retaining sleeve 63 is fixedly connected to the upper end of the retaining plate 62. A retaining block 64 is fixedly connected to the inside of the grooved retaining sleeve 63. An air chamber 65 is opened inside the grooved retaining sleeve 63. A piston block 66 is slidably connected to the inside of the air chamber 65. An air inlet 67 is opened at the upper end of the air chamber 65. A sealing strip 68 is fixedly connected to the inside of the air chamber 65.

[0028] As a further implementation of this solution, the projection of the pallet 44 in the vertical direction is annular, the central axis of the pallet 44 and the central axis of the hollow rod 41 are on the same straight line, and the inner side of the limiting groove 46 and the outer side of the clamping plate 62 are in zero clearance fit. This setting makes the connection between the inner side of the limiting groove 46 and the clamping plate 62 more stable, which is beneficial to the transmission between components.

[0029] As a further implementation of this solution, the outer side of the airbag ball 51 is attached to the inner side of the tray 44. Several short tubes 52 are provided, and the short tubes 52 are arranged in a ring array with the center of the airbag ball 51 as the center. The number of short tubes 52 corresponds to the number of anti-slip airbag strips 53. The outer side of the short tubes 52 is attached to the inner side of the mounting hole 43. A part of the anti-slip airbag strip 53 is exposed outside the rod groove 42. The vertical tube 54 and the airbag ball 51 are on the same axis. The outer side of the bottom end of the vertical tube 54 is attached to the inner side of the air inlet 67. This arrangement allows for easy insertion and removal of the hollow rod 41 while holding the anti-slip airbag strip 53. This makes the anti-slip airbag strip 53 more likely to deform while playing an anti-slip role, allowing the internal air to be discharged.

[0030] As a further implementation of this solution, the included angle between the card block 64 and the grooved sleeve 63 is 90°, the outer side of the piston block 66 is in contact with the inner side of the air chamber 65, and two sealing strips 68 are provided. The two sealing strips 68 are symmetrically distributed on the inner side of the grooved sleeve 63. This design can achieve better sealing when the components are connected.

[0031] As a further implementation of this solution, a hollow rod 41 is bonded to the outside of the sealing gasket 61. The upper end face of the sealing gasket 61 is on the same horizontal plane as the bottom end face of the limiting plate 45. The central axis of the sealing gasket 61 is on the same straight line as the central axis of the connecting hole 47. This design can make the sealing gasket 61 fit tightly with the hollow rod 41 and the limiting plate 45, preventing impurities and water from entering the hollow rod 41 and causing the parts to rust.

[0032] As a further implementation of this solution, several inter-bar grooves 42 are provided, and the inter-bar grooves 42 are distributed in a ring array on the outside of the hollow bar 41. Several mounting holes 43 are provided, and the positions of the mounting holes 43 correspond to the positions of the inter-bar grooves 42. This design is conducive to the installation of the anti-slip airbag strip 53 and the short tube 52, and at the same time improves the competitiveness of the product's appearance.

[0033] Working Process: When using the electric toothbrush, while holding the brush handle assembly 4, pressure is applied to the anti-slip airbag strip 53, causing air inside the anti-slip airbag strip 53 to flow into the airbag ball 51 through the short tube 52. Since multiple anti-slip airbag strips 53 are arranged in a ring array, the user can easily apply pressure to multiple anti-slip airbag strips 53 simultaneously, resulting in a larger volume of air entering the airbag ball 51. After the air enters the airbag ball 51, it is discharged into the air chamber 65 through the vertical tube 54. Because the outer side of the piston block 66 is in contact with the inner side of the air chamber 65, the air entering the air chamber 65 pushes the piston block 66 downwards. At this time, the device is inserted into the brush handle, allowing the connecting shaft of the brush handle to pass through the connecting hole 47 and the sealing washer 61 into the grooved sleeve 63, so that the upper end face of the connecting shaft of the brush handle is in contact with the bottom end face of the piston block 66. Because the sealing strip 68 provides good sealing for the grooved sleeve 63, when the connecting shaft of the brush handle is fully... When the slotted sleeve 63 is inserted, the air between the brush handle connecting shaft and the slotted sleeve 63 is completely expelled, and it engages with the locking block 64, thus ensuring the stability of the connection. After installation, the brush handle assembly 4 is released, and no more pressure is applied to the anti-slip airbag strip 53. Some of the air in the airbag ball 51 flows back to the anti-slip airbag strip 53 through the short tube 52. At the same time, the vertical tube 54 extracts the air from the air chamber 65, creating a negative pressure inside the air chamber 65, which further enhances the stability of the connecting sleeve assembly 6 and the brush handle connecting shaft. When the brush handle connecting shaft rotates, it will drive the slotted sleeve 63 to rotate. The rotation of the slotted sleeve 63 will drive the locking plate 62 to rotate. The locking plate 62 drives the limiting plate 45 to rotate through the limiting groove 46. The rotation of the limiting plate 45 drives the hollow rod 41 to rotate, causing the soft rubber part 1, the bristle plate 2, and the bristle bundle 3 fixedly connected to the upper end of the hollow rod 41 to rotate simultaneously, thereby increasing the cleaning power of the electric toothbrush head component on the teeth.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A brush head component for an electric toothbrush, comprising a soft rubber part (1), a bristle plate (2), and a bristle bundle (3), characterized in that: A plurality of bristle plates (2) are fixedly connected to one side of the soft rubber part (1), and a plurality of bristle bundles (3) are fixedly connected to the inner side of the bristle plates (2). A brush rod assembly (4) is fixedly connected to the bottom end of the soft rubber part (1). An airbag assembly (5) is fixedly installed inside the brush rod assembly (4). A connecting sleeve assembly (6) is fixedly connected to the inner side of the soft rubber part (1). The brush rod assembly (4) includes a hollow rod (41). A rod groove (42) is opened on the outer side of the hollow rod (41). An installation hole (43) is opened on the inner side of the hollow rod (41). A tray (44) is fixedly connected to the inner side of the hollow rod (41). A limiting plate (45) is fixedly connected to the inner side of the hollow rod (41). A limiting groove (46) is opened on the inner side of the limiting plate (45). A connecting insertion hole (47) is opened at the bottom end of the hollow rod (41). The airbag assembly (5) includes an airbag ball (51), a short tube (52) is fixedly connected to the inner side of the airbag ball (51), an anti-slip airbag strip (53) is fixedly connected to one end of the short tube (52), and a vertical tube (54) is fixedly connected to the lower end of the airbag ball (51). The connecting sleeve assembly (6) includes a sealing gasket (61), a retaining plate (62) is fixedly connected to the upper end of the sealing gasket (61), a grooved retaining sleeve (63) is fixedly connected to the upper end of the retaining plate (62), a retaining block (64) is fixedly connected to the inner side of the grooved retaining sleeve (63), an air chamber (65) is opened on the inner side of the grooved retaining sleeve (63), a piston block (66) is slidably connected to the inner side of the air chamber (65), an air inlet (67) is opened at the upper end of the air chamber (65), and a sealing strip (68) is fixedly connected to the inner side of the air chamber (65).

2. The brush head component of an electric toothbrush according to claim 1, characterized in that: The bar grooves (42) are provided in a plurality of manner, and the bar grooves (42) are arranged in a ring array on the outside of the hollow bar (41). The mounting holes (43) are provided in a plurality of manner, and the positions of the mounting holes (43) correspond to the positions of the bar grooves (42).

3. The brush head component of an electric toothbrush according to claim 1, characterized in that: The projection of the tray (44) in the vertical direction is annular. The central axis of the tray (44) and the central axis of the hollow rod (41) are on the same straight line. The inner side of the limiting groove (46) and the outer side of the card plate (62) are in zero clearance fit.

4. The brush head component of an electric toothbrush according to claim 1, characterized in that: The outer side of the airbag ball (51) is attached to the inner side of the tray (44). Several short tubes (52) are provided. The short tubes (52) are arranged in a ring array with the center of the airbag ball (51) as the center. The number of short tubes (52) corresponds to the number of anti-slip airbag strips (53).

5. The brush head component of an electric toothbrush according to claim 1, characterized in that: The outer side of the short tube (52) is fitted with the inner side of the mounting hole (43), a part of the anti-slip airbag strip (53) is exposed outside the rod groove (42), the vertical tube (54) and the airbag ball (51) are on the same axis, and the outer side of the bottom end of the vertical tube (54) is fitted with the inner side of the air inlet (67).

6. The brush head component of an electric toothbrush according to claim 1, characterized in that: A hollow rod (41) is bonded to the outside of the sealing gasket (61). The upper end face of the sealing gasket (61) and the bottom end face of the limiting plate (45) are on the same horizontal plane. The central axis of the sealing gasket (61) and the central axis of the connecting hole (47) are on the same straight line.

7. The brush head component of an electric toothbrush according to claim 1, characterized in that: The included angle between the card block (64) and the grooved sleeve (63) is 90°. The outer side of the piston block (66) is in contact with the inner side of the air chamber (65). There are two sealing strips (68), which are symmetrically distributed on the inner side of the grooved sleeve (63).

Images