CN215130654U

CN215130654U - Conveniently-disassembled mechanism of electric toothbrush head

Info

Publication number: CN215130654U
Application number: CN202121332563.2U
Authority: CN
Inventors: 陈华志
Original assignee: Foshan Huachuang Medical Technology Co ltd
Current assignee: Foshan Huachuang Medical Technology Co ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2021-12-14
Anticipated expiration: 2031-06-15

Abstract

The utility model discloses a just, tear mechanism open of electric toothbrush head, include: brush holder subassembly, brush head coupling assembling. The brush head assembly is arranged on a power output shaft of the vibrating motor through the brush head connecting assembly, the first buckle structure and the second buckle structure are mutually clamped, the power output shaft is in interference fit with the flat cavity to play a role in fixing, a brush head handle is not directly inserted into the power output shaft, and the force required during plugging and unplugging is reduced. And when the partial size of the free end of the power output shaft is larger than the size of the flat cavity, the second flat elastic block is extruded by the power output shaft and pops up, and meanwhile, the first flat elastic block is extruded, so that the first buckle structure and the second buckle structure are mutually clamped, and the interlocking and reinforcing effects are achieved. Therefore, the connecting bracket can meet the dimensional tolerance of the power output shaft in practical production.

Description

Conveniently-disassembled mechanism of electric toothbrush head

Technical Field

The utility model relates to an oral care technical field, in particular to just, tear mechanism open of electric toothbrush head.

Background

In order to enable the vibrating motor in the electric toothbrush handle to better drive the electric toothbrush head to vibrate, the electric toothbrush head needs to be firmly fixed on an output shaft of the vibrating motor, so that a certain force is required to be applied to the electric toothbrush handle by inserting the electric toothbrush head, and children or girls with small strength are difficult to operate. In the production process, certain dimensional tolerance exists in the actual production of the power output shaft, so that the phenomenon that the electric toothbrush head is unstably or difficultly inserted into the electric toothbrush handle can occur.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a mechanism is torn open to electronic toothbrush head's convenience to solve one or more technical problem that exist among the prior art, provide a profitable selection or creation condition at least.

The technical scheme adopted for solving the technical problems is as follows:

first, the utility model provides a just, tear mechanism open of electric toothbrush head, include: brush holder subassembly, brush head coupling assembling. The brush handle assembly comprises a brush handle body and a vibration motor arranged in the brush handle body, the brush handle body is provided with a connecting end, the vibration motor is provided with a power output shaft, the power output shaft extends out of the connecting end, the power output shaft is provided with a free end, and the free end is provided with a first buckle structure; the brush head assembly comprises a brush head handle and a brush hair structure, the left end of the brush head handle is provided with a connecting cavity, and the brush hair structure is arranged at the right end of the brush head handle; the brush head connecting assembly comprises a connecting support, the connecting support is arranged in a connecting cavity, the connecting support comprises a first connecting pipe section and a flat position fixing pipe section which are sequentially arranged from left to right, the flat position fixing pipe section is provided with a flat cavity, a first inclined transition surface is arranged between the first connecting pipe section and the flat position fixing pipe section, the left end of the first inclined transition surface is connected with a first flat position elastic block extending leftwards and rightwards, the flat position elastic block is arranged in the first connecting pipe section, the first flat position elastic block and the inner side wall of the first connecting pipe section form an annular elastic cavity, the side wall of the flat position fixing pipe section is provided with two spacing grooves, the spacing grooves penetrate through the side wall of the flat position fixing pipe section, the side wall between the two spacing grooves is provided with a second flat position elastic block, the free end of the first connecting pipe section and the flat position fixing pipe section sequentially penetrate through, the inner side of the first flat position elastic block is provided with a second buckle structure, and the first buckle structure is matched with the second buckle structure, the first flat elastic block and the second flat elastic block are arranged up and down.

The utility model has the advantages that:

the brush head assembly is arranged on a power output shaft of the vibrating motor through the brush head connecting assembly, the first buckle structure and the second buckle structure are mutually clamped, the power output shaft is in interference fit with the flat cavity to play a role in fixing, a brush head handle is not directly inserted into the power output shaft, and the force required during plugging and unplugging is reduced. And when the partial size of the free end of the power output shaft is larger than the size of the flat cavity, the second flat elastic block is extruded by the power output shaft and pops up, and meanwhile, the first flat elastic block is extruded, so that the first buckle structure and the second buckle structure are mutually clamped, and the interlocking and reinforcing effects are achieved. Therefore, the connecting bracket can meet the dimensional tolerance of the power output shaft in practical production.

As a further improvement of the technical scheme, the upper side wall of the flat position fixing pipe section is provided with a first plane extending leftwards and rightwards, the first plane is provided with reinforcing ribs extending leftwards and rightwards, and the reinforcing ribs play a role in reinforcing the integral structure of the connecting support.

As the further improvement of the technical scheme, the first buckle structure is a groove which is concavely arranged at the free end, the second buckle structure comprises an arc-shaped convex block which is convexly arranged at the first flat elastic block, and the groove and the arc-shaped convex block are mutually clamped to play a role in fixing.

As above-mentioned technical scheme's further improvement, the free end includes the flat position connecting portion that connect gradually from the right side to the left side, transition portion, block portion, flat position connecting portion are flat structure, flat position connecting portion have the second plane that extends the setting around, the recess sets up in block portion, transition portion is provided with the second slope transition face from a left side to the right downward sloping, power output shaft's free end suits with linking bridge's cavity, flat position connecting portion make linking bridge and brush first subassembly can not take place to deflect relative power output shaft, increase linking bridge and power output shaft's joint strength. So that the brush hair structure of the brush head component can continuously and stably vibrate along with the vibration motor when brushing teeth. The second inclined transition surface has a certain guiding function, so that the free end of the power output shaft slides into the flat cavity along the second inclined transition surface, and the installation is convenient.

As the further improvement of the technical scheme, the cross section of the second flat elastic block is arc-shaped and is abutted against the flat connecting part, so that the interlocking and reinforcing effects of the mutual clamping of the first clamping structure and the second clamping structure are increased.

As the further improvement of the technical scheme, the left end inner side wall of the first flat elastic block is provided with a first inclined arc surface, the inner side wall of the first connecting pipe section relative to the first flat elastic block is provided with a second inclined arc surface, and the first inclined arc surface and the second inclined arc surface are horn-shaped with a left opening, so that the guiding effect is achieved, and the free end of the power output shaft is conveniently inserted into the connecting support.

As a further improvement of the technical scheme, the bristle structure comprises a bristle body, the bristle body comprises a plurality of bundles of bristles, a bristle support is connected to the brush head handle, the bristles are arranged on the bristle support, and the bristles are perpendicular to the second plane.

Because can generally learn the approximate extending direction of the flat chamber in the linking bridge through observing the brush hair for flat chamber and flat position connecting portion are the corresponding block of each other, need not rotatory brush hair structure and make flat chamber and flat position connecting portion block. The consumer only needs to observe the brush hair structure when installing can, need not to rotate linking bridge and brush handle body repeatedly and install, it is more convenient to install.

As a further improvement of the technical scheme, the diameter of the connecting cavity is gradually reduced from left to right, the shape of the connecting bracket is adapted to the shape of the connecting cavity, and the corresponding appearance of the brush handle body is correspondingly changed, so that the brush handle body is more attractive.

As a further improvement of the technical scheme, the connecting bracket is an integral component, and the connecting strength is increased.

Drawings

The present invention will be further explained with reference to the drawings and examples;

FIG. 1 is an exploded perspective view of an embodiment of the power toothbrush head of the present invention, wherein the six arrows indicate upward, downward, left, right, forward and backward directions, respectively;

fig. 2 is an enlarged view of a portion a in fig. 1;

FIG. 3 is a schematic view of an embodiment of a connecting bracket of the detachable electric toothbrush head of the present invention;

FIG. 4 is a schematic cross-sectional view of an embodiment of a connecting bracket of the easy-to-detach mechanism of a power toothbrush head provided by the present invention;

fig. 5 is a schematic sectional view of an embodiment of the detachable mechanism of the electric toothbrush head according to the present invention, wherein four arrows indicate upward, downward, left, and right directions, respectively.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, if words such as "a plurality" are used, the meaning is one or more, the meaning of a plurality of words is two or more, and the meaning of more than, less than, more than, etc. is understood as not including the number, and the meaning of more than, less than, more than, etc. is understood as including the number.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 5, the detachable mechanism of the electric toothbrush head of the present invention comprises the following embodiments:

the utility model provides a just, tear mechanism open of electronic toothbrush head, include: handle assembly 100, brush head assembly 200, brush head coupling assembly. The brush handle assembly 100 is used for holding when a person brushes teeth; the brush head assembly 200 is an assembly that extends into the mouth when brushing teeth; the brush head handle 210 of the brush head assembly 200 is not directly connected to the power output shaft 121, but is mounted to the power output shaft 121 of the vibration motor through a brush head connecting assembly. The following description of the handle assembly 100, head assembly 200, and head attachment assembly is provided.

The brush holder assembly 100 includes a brush holder body 110, and a vibration motor disposed in the brush holder body 110, the brush holder body 110 having a connection end, the vibration motor having a power output shaft 121, the power output shaft 121 extending from the connection end, the power output shaft 121 having a free end.

The brush head assembly 200 includes a brush head handle 210 and a bristle structure 220, the left end of the brush head handle 210 has a connection cavity, and the bristle structure 220 is mounted to the right end of the brush head handle 210.

The brushhead attachment assembly includes a connecting bracket 300, the connecting bracket 300 being mounted in the connecting cavity. When the diameter of the connecting cavity is gradually reduced from left to right, the shape of the connecting bracket 300 is adapted to the shape of the connecting cavity, the appearance corresponding to the brush handle body 110 is correspondingly changed, the left end of the appearance of the brush handle body 110 is larger and is in smooth transition to the right end, so that the brush handle body 110 is more attractive.

And the connecting bracket 300 comprises a first connecting pipe section 310 and a flat position fixing pipe section 320 which are arranged from left to right in sequence, and the flat position fixing pipe section 320 is provided with a flat cavity. Correspondingly, referring to fig. 2, the free end includes a flat connecting portion 131, a transition portion 132, and a fastening portion 133 connected in sequence from right to left, and the flat connecting portion 131 is in a flat structure. The flat connecting portion 131 is correspondingly engaged with the flat cavity, and the flat connecting portion 131 prevents the connecting bracket 300 and the brush head assembly 200 from deflecting relative to the power output shaft 121, so that the connecting strength between the connecting bracket 300 and the power output shaft 121 is increased. So that the bristle structure 220 of the brush head assembly 200 can continuously and stably vibrate following the vibration motor while brushing teeth.

A first inclined transition surface 311 is arranged between the first connecting pipe section 310 and the flat position fixing pipe section 320, a transition part 132 is arranged at the free end, and the transition part 132 is provided with a second inclined transition surface 135 which is inclined downwards from left to right. When installed, the first angled transition surface 311 and the second angled transition surface 135 abut one another. The second inclined transition surface 135 has a guiding function, so that the free end of the power output shaft 121 slides into the flat cavity along the second inclined transition surface 135, and the installation is convenient.

For ease of installation by the consumer. The bristle structure 220 includes a bristle body 221, the bristle body 221 includes a plurality of bristles, a bristle holder 230 is connected to the head handle 210, the bristles are disposed on the bristle holder 230, and the bristles are perpendicular to the second plane 134. So that the general extending direction of the flat cavity in the connecting bracket 300 can be known approximately by observing the bristles, the flat cavity and the flat connecting portion 131 are correspondingly engaged with each other, and the rotating bristle structure 220 is not needed to engage the flat cavity with the flat connecting portion 131. Consumers only need to observe the bristle structure 220 during actual installation, the installation is carried out without repeatedly rotating the connecting support 300 and the brush handle body 110, and the installation is more convenient.

The left end of the first inclined transition surface 311 is connected with a first flat elastic block 330 extending left and right, the flat elastic block is arranged in the first connecting pipe section 310, an annular elastic cavity 331 is formed by the first flat elastic block 330 and the inner side wall of the first connecting pipe section 310, the side wall of the flat fixed pipe section 320 is provided with two spacing grooves 321, the spacing grooves 321 penetrate through the side wall of the flat fixed pipe section 320, and the side wall between the two spacing grooves 321 is provided with a second flat elastic block 322. First flat position elastic block 330 and second flat position elastic block 322 are the setting from top to bottom and first buckle structure and second buckle structure cooperation play the reinforced effect of interlocking. In this embodiment, the cross section of the second flat elastic block 322 is arc-shaped and abuts against the flat connecting portion 131, so as to increase the interlocking and reinforcing effects of the first and second fastening structures.

When the engaging portion 133 of the power output shaft 121 is larger than the size of the flat cavity, the second flat elastic block 322 has elasticity, the second flat elastic block 322 is extruded by the power output shaft 121 to pop up, and meanwhile, the first flat elastic block 330 is extruded to further enable the first engaging structure and the second engaging structure to be engaged with each other, so that the interlocking and reinforcing effects are achieved. The coupling bracket 300 can meet dimensional tolerances of the power take-off shaft 121 actually produced.

The free end sequentially penetrates through the first connecting pipe section 310 and the flat position fixing pipe section 320, and is provided with a first buckle structure which comprises a groove 130 concavely arranged at the free end; the inner side of the first flat elastic block 330 is provided with a second fastening structure, the second fastening structure comprises an arc-shaped convex block 332 protruding from the first flat elastic block 330, the groove 130 and the arc-shaped convex block 332 are fastened with each other to play a role in fixing, and the groove 130 and the arc-shaped convex block 332 can also be displaced with each other to play a role in fixing as well.

In other embodiments, the first and second snap structures may also be square protrusions and square grooves disposed corresponding to each other, and other snap structures.

Therefore, the power output shaft 121 and the flat cavity are in interference fit to play a fixing role, the brush head handle 210 is not directly inserted into the power output shaft 121, and the force required during plugging is reduced.

In addition, referring to fig. 3, the inner side wall of the left end of the first flat elastic block 330 is provided with a first inclined arc 325, the inner side wall of the first connecting pipe section 310, which is opposite to the first flat elastic block 330, is provided with a second inclined arc 326, and the first inclined arc 325 and the second inclined arc 326 are in a horn shape with a leftward opening, so as to play a guiding role, and facilitate the free end of the power output shaft 121 to be inserted into the connecting bracket 300.

Further, the upper side wall of the flat position fixing pipe section 320 is provided with a first plane 323 extending from left to right, the first plane 323 is provided with a reinforcing rib 324 extending from left to right, and the reinforcing rib 324 reinforces the whole structure of the connecting bracket 300. And the connection bracket 300 is an integral member, increasing the connection strength.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.

Claims

1. A just, tear mechanism open of electronic toothbrush head which characterized in that includes:

the brush handle assembly (100) comprises a brush handle body (110) and a vibration motor arranged in the brush handle body (110), wherein the brush handle body (110) is provided with a connecting end, the vibration motor is provided with a power output shaft (121), the power output shaft (121) extends out of the connecting end, the power output shaft (121) is provided with a free end, and the free end is provided with a first buckling structure;

a brush head assembly (200) comprising a brush head handle (210) and a bristle structure (220), wherein the left end of the brush head handle (210) is provided with a connecting cavity, and the bristle structure (220) is arranged at the right end of the brush head handle (210);

the brush head connecting assembly comprises a connecting support (300), the connecting support (300) is installed in a connecting cavity, the connecting support (300) comprises a first connecting pipe section (310) and a flat position fixing pipe section (320) which are sequentially arranged from left to right, the flat position fixing pipe section (320) is provided with a flat cavity, a first inclined transition surface (311) is arranged between the first connecting pipe section (310) and the flat position fixing pipe section (320), the left end of the first inclined transition surface (311) is connected with a first flat position elastic block (330) extending left and right, the first flat position elastic block (330) is arranged in the first connecting pipe section (310), the first flat position elastic block (330) and the inner side wall of the first connecting pipe section (310) form an annular elastic cavity (331), and the side wall of the flat position fixing pipe section (320) is provided with two spacing grooves (321), interval groove (321) run through the interior, outer wall of flat position fixed tube section (320), two form flat position elastic block of second (322) between interval groove (321), the free end stretches into in first connecting tube section (310), the flat position fixed tube section (320) in proper order, the inboard of first flat position elastic block (330) is provided with second buckle structure, first buckle structure with second buckle structure mutually supports the joint, first flat position elastic block (330) with the flat position elastic block of second (322) are setting up from top to bottom.

2. A detachable mechanism of an electric toothbrush head according to claim 1, wherein:

the upper side wall of the flat position fixing pipe section (320) is provided with a first plane (323) extending left and right, and the first plane (323) is provided with a reinforcing rib (324) extending left and right.

3. A detachable mechanism of an electric toothbrush head according to claim 1, wherein:

the first buckle structure is concave and arranged in the groove (130) of the free end, and the second buckle structure is convex and arranged in the arc-shaped convex block (332) of the first flat elastic block (330).

4. A detachable mechanism of an electric toothbrush head according to claim 3, wherein:

the free end includes flat position connecting portion (131), transition portion (132), block portion (133) that connect gradually from right side to left side, flat position connecting portion (131) are the flat structure, flat position connecting portion (131) have second plane (134) that extend the setting around, recess (130) set up on block portion (133), transition portion (132) are provided with from left to right downward sloping second slope transition face (135).

5. A detachable mechanism of an electric toothbrush head according to claim 4, wherein:

the cross section of the second flat elastic block (322) is arc-shaped.

6. A detachable mechanism of an electric toothbrush head according to claim 5, wherein:

the left end inside wall of first flat position elasticity piece (330) is provided with first slope cambered surface (325), first connecting tube section (310) is relative the inside wall of first flat position elasticity piece (330) is provided with second slope cambered surface (326), first slope cambered surface (325) with second slope cambered surface (326) are the loudspeaker shape of opening left.

7. A detachable mechanism of an electric toothbrush head according to claim 5, wherein:

the bristle structure (220) comprises a bristle body (221), the bristle body (221) comprises a plurality of bundles of bristles, a bristle holder (230) is connected to the brush head handle (210), the bristles are arranged on the bristle holder (230), and the bristles are perpendicular to the second plane (134).

8. A detachable mechanism of an electric toothbrush head according to claim 1, wherein:

the diameter of the connecting cavity is gradually reduced from left to right, and the shape of the connecting bracket (300) is matched with that of the connecting cavity.

9. A detachable mechanism of an electric toothbrush head according to claim 1, wherein:

the connecting bracket (300) is an integral component.