CN116370126A - Electric toothbrush head - Google Patents

Abstract

The invention relates to the technical field of toothbrush heads, and discloses an electric toothbrush head which comprises a brush body and an insert block, wherein an insert cavity is formed in the lower part of the brush body, the insert block is inserted into the insert cavity, and the outer side wall of the insert block is abutted against the inner side wall of the insert cavity; the insert block is provided with a core channel, the vibration core is inserted into the core channel and is abutted against the inner side wall of the core channel; the brush body is internally provided with a pin shaft which penetrates into the inserting cavity and is inserted into the upper part of the inserting block, and the pin shaft fixedly connects the upper part of the inserting block with the brush body; the bottom of the insert block forms a bottom abutting ring, and the bottom abutting ring is positioned below the brush body and abuts against the bottom of the brush body from bottom to top; the vibration machine core is abutted against the inner side wall of the machine core channel, and high-frequency vibration of the vibration machine core is transmitted to the brush body through the insert block, so that high-frequency vibration of bristles on the brush body is driven; the upper portion of the insert block is fixedly connected with the brush body through the pin shaft, the bottom of the insert block is abutted against the bottom of the brush body from bottom to top through the bottom abutting ring, and therefore installation connection between the insert block and the brush body is achieved, and the structure is stable.

Description

Electric toothbrush head

Technical Field

The invention relates to the technical field of toothbrush heads, in particular to an electric toothbrush head.

Background

Along with the continuous improvement of life quality, electric toothbrushes are widely popularized in the market, and the electric toothbrushes are rapidly rotated or vibrated through a vibrating machine core, so that brush heads on the electric toothbrush heads generate high-frequency vibration, toothpaste is instantaneously decomposed into fine foam, tooth gaps are deeply cleaned, and meanwhile, the vibration of bristles can promote the blood circulation of the oral cavity and has a massaging effect on gum tissues.

The electric toothbrush includes brush holder and electric toothbrush head, and the top of brush holder has vibration core, and electric toothbrush head includes the brush body and inserts the piece, is equipped with the brush hair on the brush body, and the insert is inserted in the brush body, is equipped with the core passageway in the insert, and vibration core inserts in the core passageway, and vibration core and core passageway butt drive the overhead brush hair vibration of electric toothbrush through the high-frequency vibration of vibration core to realize the effect that the brush hair was brushed teeth.

The insert is inserted into the brush body and needs to be fixedly connected with the brush body, so that the phenomenon that the insert is separated from the brush body in the using process is avoided. In the prior art, in order to realize the assembly between the insert block and the brush body, a plurality of clamping structures are often required to be arranged between the insert block and the brush body, so that the structure is complex, and the defect of unstable connection exists due to the fact that the connection of the clamping structures is achieved.

Disclosure of Invention

The invention aims to provide an electric toothbrush head, which aims to solve the problem of complex structure of the electric toothbrush head in the prior art.

The invention is realized in such a way that the electric toothbrush head comprises a brush body and an insert block, wherein the upper part of the brush body is provided with a bristle part provided with bristles, the lower part of the brush body is provided with an insert cavity, the bottom of the brush body is provided with an installation opening, the insert block is inserted into the insert cavity through the installation opening, and the outer side wall of the insert block is abutted against the inner side wall of the insert cavity; the insert block is internally provided with a core channel for inserting a flat vibration core, the core channel forms an insertion opening at the bottom of the insert block, and the vibration core is inserted into the core channel through the insertion opening and is abutted against the inner side wall of the core channel;

the brush body is internally provided with a pin shaft which is transversely arranged, the pin shaft penetrates into the inserting cavity and is inserted into the upper part of the inserting block, and the pin shaft fixedly connects the upper part of the inserting block with the brush body; the outer Zhou Chaowai of the bottom of the insert extends to form a bottom abutting ring, the bottom abutting ring is circumferentially arranged along the periphery of the insert, and the bottom abutting ring is located below the brush body and abuts against the bottom of the brush body from bottom to top.

Further, a transversely arranged mounting hole is formed in the brush body, the mounting hole is communicated with the insertion cavity, the pin shaft is inserted into the mounting hole, the inner end of the pin shaft penetrates through the mounting hole and extends into the insertion cavity, and the pin shaft is inserted into the upper portion of the insertion block;

the middle part of the mounting hole is provided with a longitudinal step which is longitudinally arranged, the outer end of the pin shaft is provided with a tip which is embedded and fixed in the mounting hole, the tip is abutted on the longitudinal step, and the longitudinal step positions the transverse insertion depth of the pin shaft.

Further, a notch groove is formed in the middle of the insertion block and is communicated with the movement channel, and elastic arms which are longitudinally arranged are arranged in the notch groove and are abutted against the inner side wall of the insertion cavity; when the vibrating machine core is inserted into the machine core channel, the vibrating machine core abuts against the inner side wall of the machine core channel, and the elastic arm abuts against the vibrating machine core.

Further, the insert block comprises a seat body and an insert shaft arranged on the seat body; the inserting shaft is in butt joint with the top of the base body, and the base body and the inserting shaft are integrally formed; the movement channel passes through the seat body and extends to the lower part of the insertion shaft; the notch groove is formed in the inserting shaft, and the bottom abutting ring is arranged on the periphery of the bottom of the seat body;

the inserting shaft and the base body are respectively inserted into the inserting cavity, and the outer side wall of the inserting shaft and the outer side wall of the base body are respectively abutted against the inner side wall of the inserting cavity; the upper part of the inserting shaft is solid to form a fixed section, and the outer side wall of the fixed section is abutted against the inner side wall of the inserting cavity; the fixing section is internally provided with pin holes which are transversely arranged, the pin holes are transversely aligned with the mounting holes, and the pin shafts are inserted and fixed in the pin holes.

Further, a positioning surface which is longitudinally arranged is arranged on the periphery of the fixing section, and the positioning surface is planar; the inner side wall of the insertion cavity is provided with a positioning side wall which is longitudinally arranged, the positioning side wall is planar, and the positioning surface is abutted against the positioning side wall; the bolt passes through the positioning side wall and the positioning surface respectively.

Further, a vibration section is formed at the lower part of the insertion shaft, the movement channel extends into the vibration section, and the notch groove is arranged in the vibration section; a vibration gap is formed between the outer side wall of the vibration section and the inner side wall of the insertion cavity; the seat body is provided with an outer peripheral side wall which is arranged outwards, the outer peripheral side wall is arranged obliquely inwards along the direction of inserting the seat body into the insertion cavity, and the outer peripheral side wall is abutted against the inner side wall of the insertion cavity.

Further, the upper end of the elastic arm is connected with the inner side wall of the notch groove, and the lower end of the elastic arm extends into the notch groove and is freely arranged; the elastic arm is provided with an inner abutting surface facing the movement channel and an outer abutting surface arranged away from the movement channel, the inner abutting surface abuts against the vibration movement, and the outer abutting surface abuts against the inner side wall of the insertion cavity; the vibration machine core is provided with a transverse groove which is transversely arranged, the inner abutting surface is convexly provided with a transverse line raised line which is transversely arranged, and the transverse raised line is embedded in the transverse groove.

Further, the upper part of the outer abutting surface is sunken towards the movement channel to form a sunken part, and the lower part of the outer abutting surface is outwards protruded to form a protruding part; the thickness of the upper portion of the elastic arm is smaller than that of the lower portion of the elastic arm, the protruding portion is abutted to the inner side wall of the inserting cavity, and an elastic gap is formed between the recessed portion and the inner side wall of the inserting cavity.

Further, a sandwich groove which is longitudinally arranged is arranged in the middle of the elastic arm, and the sandwich groove penetrates through the lower end of the elastic arm; the interlayer groove is filled with an elastic adhesive layer, the entire interlayer groove is filled with the adhesive layer, and the adhesive layer is in a pressed state in the interlayer groove; the adhesive layer penetrates through the elastic arm to penetrate through the inner abutting surface to form an elastic surface protruding out of the inner abutting surface;

the inside of glue film is equipped with a plurality of fretwork holes, works as after the vibration core inserts the core passageway, the elastic surface butt is on the vibration core, the elastic surface receives the butt inwards compression to arrange with interior butt face parallel and level.

Further, an installation gap is formed between the end part of the pin shaft and the end part of the pin hole, a plurality of elastic rubber rings are embedded in the outer side wall of the pin shaft, the rubber rings are arranged at intervals along the axial direction of the pin shaft, and the rubber rings are arranged circumferentially along the pin shaft;

the pin shaft is internally provided with a plurality of mounting grooves which are arranged at intervals along the axial direction of the pin shaft, and the mounting grooves are circumferentially arranged along the circumferential direction of the pin shaft; the rubber ring is embedded in the mounting groove, the bottom of the rubber ring is abutted to the bottom of the mounting groove, and the top of the rubber ring extends out of the mounting groove; a deformation gap is formed between two sides of the rubber ring and the inner side wall of the mounting groove, a hollowed-out groove is formed in the middle of the rubber ring, the hollowed-out groove is circumferentially arranged along the circumferential direction of the rubber ring, and the hollowed-out groove penetrates through the top of the rubber ring;

after the pin shaft is inserted into the brush body and the insert block, the rubber ring is pressed towards the deformation gap and the hollowed-out groove to be elastically compressed and deformed, and the rubber ring is in a pressed state.

Compared with the prior art _， The electric toothbrush head provided by the invention has the advantages that the vibrating machine core is inserted into the machine core channel and is abutted against the inner side wall of the machine core channel, and the high-frequency vibration of the vibrating machine core can be transmitted to the brush body through the insertion block, so that the high-frequency vibration of the brush hair on the brush body is driven; the upper portion of inserted block carries out fixed connection through round pin axle and brush body, and the bottom of inserted block is through the bottom butt ring from bottom to top butt brush body's bottom, realizes the installation connection between inserted block and the brush body, simple structure, and realizes the connection of inserted block and brush body through the round pin axle, and it is more firm to connect, avoids long-time vibration work, leads to the phenomenon that breaks away from between inserted block and the brush body.

Drawings

FIG. 1 is a schematic perspective view of an electric toothbrush head provided by the present invention;

FIG. 2 is an exploded perspective view of the powered toothbrush head provided by the present invention;

FIG. 3 is a schematic perspective view of an insert block provided by the present invention;

FIG. 4 is a schematic cross-sectional view of an electric toothbrush head provided by the present invention;

FIG. 5 is an enlarged schematic view at A in FIG. 4;

FIG. 6 is an internal schematic view of a brush body provided by the present invention;

FIG. 7 is a schematic cross-sectional view of a pin shaft and a rubber ring provided by the invention;

FIG. 8 is a schematic cross-sectional view of a pin provided by the present invention;

FIG. 9 is an enlarged schematic view at B in FIG. 7;

FIG. 10 is a schematic view of the inside of the elastic arm and glue layer according to the present invention;

FIG. 11 is a schematic view of the internal structure of the elastic wall provided by the present invention;

fig. 12 is a schematic front view of a handle provided by the present invention.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

The implementation of the present invention will be described in detail below with reference to specific embodiments.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.

Referring to fig. 1-12, a preferred embodiment of the present invention is provided.

The electric toothbrush head provided by the embodiment is used for being connected with the vibration machine core 801 of the brush handle 800, the vibration machine core 801 is inserted into the machine core channel 34 of the electric toothbrush head, and is fixed in the machine core channel 34, and the vibration of the whole electric toothbrush head is driven through the high-frequency vibration of the vibration machine core 801, so that the high-frequency vibration of the brush hair is realized.

The electric toothbrush head with the pin shaft 200 inserted in comprises a brush body 100 and an insert block 300, wherein the upper part of the brush body 100 is provided with a bristle part 103 provided with bristles, the lower part of the brush body 100 is provided with an insert cavity 105, the insert cavity 105 forms an installation opening 109 at the bottom of the brush body 100, the insert block 300 is inserted into the insert cavity 105 through the installation opening 109, and the outer side wall of the insert block 300 is abutted against the inner side wall of the insert cavity 105; the insert 300 has a deck channel 34 into which the flat vibration deck 801 is inserted, the deck channel 34 forms an insertion opening 39 at the bottom of the insert 300, and the vibration deck 801 is inserted into the deck channel 34 through the insertion opening 39 and abuts against the inner side wall of the deck channel 34.

The brush body 100 is internally provided with a pin shaft 200 which is transversely arranged, the pin shaft 200 penetrates into the inserting cavity 105 and is inserted into the upper part of the inserting block 300, and the pin shaft 200 fixedly connects the upper part of the inserting block 300 with the brush body 100; the outer Zhou Chaowai of the bottom of the insert 300 extends to form a bottom abutment ring 33, the bottom abutment ring 33 being circumferentially arranged along the outer periphery of the insert 300; the bottom abutting ring 33 is located below the brush body 100 and abuts against the bottom of the brush body 100 from bottom to top.

In the electric toothbrush head provided by the above, the vibration movement 801 is inserted into the movement channel 34 and abuts against the inner side wall of the movement channel 34, and the high-frequency vibration of the vibration movement 801 can be transmitted to the brush body 100 through the insertion block 300, so as to drive the brush hair on the brush body 100 to vibrate at high frequency; the upper portion of the insert 300 is fixedly connected with the brush body 100 through the pin shaft 200, the bottom of the insert 300 is abutted against the bottom of the brush body 100 from bottom to top through the bottom abutting ring 33, the installation connection between the insert 300 and the brush body 100 is achieved, the structure is simple, the connection between the insert 300 and the brush body 100 is achieved through the pin shaft 200, the connection is more stable, and the phenomenon that the insert 300 and the brush body 100 are separated due to long-time vibration is avoided.

In this embodiment, a transversely arranged mounting hole 101 is provided in the brush body 100, the mounting hole 101 is communicated with an insertion cavity 105, a pin shaft 200 is inserted into the mounting hole 101, and the inner end of the pin shaft 200 passes through the mounting hole 101, extends into the insertion cavity 105, and is inserted into the upper portion of the insertion block 300; the middle part of the mounting hole 101 is formed with a longitudinal step 102 which is longitudinally arranged, the outer end of the pin shaft 200 is provided with a tip 201, the tip 201 is embedded and fixed in the mounting hole 101, the tip 201 is abutted on the longitudinal step 102, and the longitudinal step 102 positions the transverse insertion depth of the pin shaft 200.

When the pin shaft 200 is inserted and installed, the longitudinal step 102 can position the transverse insertion depth of the pin shaft 200, so that the installation is simplified, and the pin shaft 200 is inserted in place.

The end 201 has an outer end surface disposed outwardly, and the outer end surface of the end 201 is exposed outside the mounting hole 101 and disposed flush with the outer surface of the brush body 100, so that the outer surface of the entire brush body 100 is integrated without forming an uneven structure due to the outer surface of the end 201.

The middle part of the insertion block 300 is provided with a notch groove 314, the notch groove 314 is communicated with the movement channel 34, the notch groove 314 is internally provided with a longitudinally arranged elastic arm 315, and the elastic arm 315 is abutted on the inner side wall of the insertion cavity 105; when the vibrating deck 801 is inserted into the deck channel 34, the vibrating deck 801 abuts against the inner sidewall of the deck channel 34, and the elastic arm 315 abuts against the vibrating deck 801. The vibration movement 801 is inserted into the movement channel 34 and abuts against the elastic arm 315, and high-frequency vibration of the vibration movement 801 can be transmitted to the brush body 100 through the insert block 300 and the elastic arm 315, so as to drive high-frequency vibration of the brush hair on the brush body 100.

In the present embodiment, the insert 300 includes a base 32 and an insert shaft 31 disposed on the base 32; the inserting shaft 31 is butted at the top of the seat body 32, and the seat body 32 and the inserting shaft 31 are integrally formed; the movement channel 34 passes through the seat 32 and extends to the lower part of the insertion shaft 31; the notch 314 is provided in the insertion shaft 31, and the bottom abutment ring 33 is provided on the outer periphery of the bottom of the seat 32.

The insertion shaft 31 and the seat 32 are respectively inserted into the insertion cavity 105, and the outer side wall of the insertion shaft 31 and the outer side wall of the seat 32 are respectively abutted against the inner side wall of the insertion cavity 105; the upper part of the inserting shaft 31 is solid, a fixed section 311 is formed, and the outer side wall of the fixed section 311 is abutted against the inner side wall of the inserting cavity 105; the fixing section 311 is provided with a laterally arranged pin hole 313, the pin hole 313 is laterally aligned with the mounting hole 101, and the pin shaft 200 is inserted and fixed in the pin hole 313.

The arrangement of the pin holes 313 in the solid fixing segments 311 facilitates the arrangement of the pin holes 313 and also makes the connection between the pin shaft 200 and the fixing segments 311 more stable after the pin shaft 200 is inserted into the pin holes 313.

The periphery of the fixed section 311 is provided with a positioning surface 312 which is longitudinally arranged, and the positioning surface 312 is planar; the inner side wall of the insertion cavity 105 is provided with a positioning side wall 316 which is longitudinally arranged, the positioning side wall 316 is planar, and the positioning surface 312 is abutted against the positioning side wall 316; the pins pass through the positioning side walls 316 and the positioning surfaces 312, respectively.

During insertion of the insert 300 into the cavity 105, the insert 300 may be properly assembled in the cavity 105 only when the positioning surface 312 and the positioning sidewall 316 face each other, whereas the insert 300 may not be properly assembled in the cavity 105.

The lower part of the plug-in shaft 31 forms a vibration section 319, the movement channel 34 extends into the vibration section 319, and the notch 314 is arranged in the vibration section 319; a vibration gap 106 is provided between the outer sidewall of the vibration section 319 and the inner sidewall of the insert cavity 105. The fixed section 311 is fixedly connected with the brush body 100 through the pin shaft 200, when the vibration movement 801 vibrates in the movement channel 34, vibration is transmitted to the insert shaft 31 and then to the brush body 100, and vibration of the brush body 100 is driven, and due to the fact that a vibration gap 106 exists between the vibration section 319 and the inner side wall of the insert cavity 105, in the vibration process, the vibration section 319 has enough elastic deformation space, and vibration transmission is facilitated.

In this embodiment, the base 32 has an outer peripheral sidewall 321 disposed outwards, and the outer peripheral sidewall 321 is disposed obliquely inwards along the direction in which the base 32 is inserted into the insertion cavity 105, and the outer peripheral sidewall 321 abuts against the inner sidewall of the insertion cavity 105. In this way, the insertion of the housing 32 in the insertion cavity 105 is facilitated, and the abutment of the peripheral side wall 321 with the inner side wall of the insertion cavity 105 is facilitated.

The upper end of the elastic arm 315 is connected with the inner side wall of the notch groove 314, and the lower end of the elastic arm 315 extends into the notch groove 314 and is freely arranged; the elastic arm 315 has an inner abutment surface 316 facing the movement channel 34 and an outer abutment surface 3150 arranged away from the movement channel 34, the inner abutment surface 316 abutting against the vibration movement 801, the outer abutment surface 3150 abutting against the inner side wall of the insertion cavity 105; the vibration core 801 is provided with a transverse groove 802 arranged transversely, the inner abutting surface 316 is convexly provided with a transverse line convex strip arranged transversely, and the transverse convex strip 602 is embedded in the transverse groove 802.

The transverse convex strips 602 are embedded into the transverse grooves 802 of the vibration machine core 801, so that contact connection between the vibration machine core 801 and the inner abutting surfaces 316 of the elastic arms 315 is more stable, better vibration transmission can be realized between the vibration machine core 801 and the elastic arms 315, and in vibration transmission, the phenomenon of dislocation of separation between the vibration machine core 801 and the inner abutting surfaces 316 of the elastic arms 315 is avoided.

In this embodiment, the upper portion of the outer abutment surface 3150 is recessed toward the movement channel 34 to form a recessed portion 317, and the lower portion of the outer abutment surface 3150 is protruded outward to form a protruding portion 318; the thickness of the upper portion of the elastic arm 315 is smaller than the thickness of the lower portion of the elastic arm 315, the protruding portion 318 abuts against the inner side wall of the insertion cavity 105, and an elastic gap 310 is formed between the recessed portion 317 and the inner side wall of the insertion cavity 105.

When the vibration movement 801 drives the elastic arm 315 to vibrate, the upper end of the elastic arm 315 vibrates with a swing center, and an elastic gap 310 is formed between the recess 317 and the inner sidewall of the insertion cavity 105, so that elastic deformation of the upper portion of the elastic arm 315 is facilitated.

In this embodiment, a sandwich groove 399 is longitudinally arranged in the middle of the elastic arm 315, and the sandwich groove 399 penetrates through the lower end of the elastic arm 315; the interlayer groove 399 is filled with an elastic adhesive layer 600, the entire interlayer groove 399 is filled with the adhesive layer 600, and the adhesive layer 600 is in a pressed state in the interlayer groove 399; by arranging the adhesive layer 600, the whole elastic arm 315 has better elastic effect, and the adhesive layer 600 is in a pressed state in the interlayer groove 399, so that the vibration of the vibration movement 801 can be better transmitted.

The glue layer 600 penetrates through the elastic arm 315 to the inner abutting surface 316 to form an elastic surface 601 protruding out of the inner abutting surface 316; the inside of glue film 600 is equipped with a plurality of fretwork holes 603, and after vibration core 801 inserted core passageway 34, elastic surface 601 butt is on vibration core 801, and elastic surface 601 receives the butt and compresses inwards to arrange with interior butt face 316 parallel and level. By increasing the abutting joint between the elastic surface 601 and the vibration movement 801, the elastic arm 315 and the vibration movement 801 can be directly abutted more elastically and firmly; by providing a plurality of hollowed-out portions 603, elastic deformation of the glue layer 600 may be enhanced.

In this embodiment, an installation gap 202 is formed between the end of the pin shaft 200 and the end of the pin hole 313, a plurality of elastic rubber rings 500 are embedded in the outer side wall of the pin shaft 200, the plurality of rubber rings 500 are arranged at intervals along the axial direction of the pin shaft 200, and the rubber rings 500 are arranged circumferentially around the pin shaft 200;

the pin shaft 200 is provided with a plurality of mounting grooves 209, the plurality of mounting grooves 209 are arranged at intervals along the axial direction of the pin shaft 200, and the mounting grooves 209 are arranged circumferentially along the circumferential direction of the pin shaft 200; the rubber ring 500 is embedded in the mounting groove 209, the bottom of the rubber ring 500 is abutted against the bottom of the mounting groove 209, and the top of the rubber ring 500 extends out of the mounting groove 209; a deformation gap 501 is formed between two sides of the rubber ring 500 and the inner side wall of the mounting groove 209, a hollowed-out groove 502 is formed in the middle of the rubber ring 500, the hollowed-out groove 502 is circumferentially arranged along the circumferential direction of the rubber ring 500, and the hollowed-out groove 502 penetrates through the top of the rubber ring 500;

after the pin shaft 200 is inserted into the brush body 100 and the insert block 300, the rubber ring 500 is pressed towards the deformation gap 501 and the hollow groove 502 to elastically compress and deform, and the rubber ring 500 is in a pressed state. Like this, because rubber ring 500 is in the pressurized state, it has the restoring force of outwards restoring deformation, can make the firm plug-in of round pin axle 200 in brush body 100 and inserted block 300, and vibration core 801 is in the in-process of vibrating, because the existence of rubber ring 500, not only elastic arm 315 receives the drive and vibrates, whole inserted block 300 also along with the better vibration of vibration core 801 to can realize better transmission vibration's effect. The setting of the deformation gap 501 and the hollowed-out groove 502 can improve the elastic deformation capability of the rubber ring 500.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims (10)

1. The electric toothbrush head is characterized by comprising a brush body and an insert block, wherein the upper part of the brush body is provided with a bristle part provided with bristles, the lower part of the brush body is provided with an insert cavity, the bottom of the brush body is provided with an installation opening, the insert block is inserted into the insert cavity through the installation opening, and the outer side wall of the insert block is abutted against the inner side wall of the insert cavity; the insert block is internally provided with a core channel for inserting a flat vibration core, the core channel forms an insertion opening at the bottom of the insert block, and the vibration core is inserted into the core channel through the insertion opening and is abutted against the inner side wall of the core channel;

the brush body is internally provided with a pin shaft which is transversely arranged, the pin shaft penetrates into the inserting cavity and is inserted into the upper part of the inserting block, and the pin shaft fixedly connects the upper part of the inserting block with the brush body; the outer Zhou Chaowai of the bottom of the insert extends to form a bottom abutting ring, the bottom abutting ring is circumferentially arranged along the periphery of the insert, and the bottom abutting ring is located below the brush body and abuts against the bottom of the brush body from bottom to top.

2. The electric toothbrush head according to claim 1, wherein the brush body is provided with a transversely arranged mounting hole, the mounting hole is communicated with the insertion cavity, the pin shaft is inserted into the mounting hole, the inner end of the pin shaft penetrates through the mounting hole and extends into the insertion cavity, and the pin shaft is inserted into the upper part of the insertion block;

the middle part of the mounting hole is provided with a longitudinal step which is longitudinally arranged, the outer end of the pin shaft is provided with a tip which is embedded and fixed in the mounting hole, the tip is abutted on the longitudinal step, and the longitudinal step positions the transverse insertion depth of the pin shaft.

3. The electric toothbrush head according to claim 1, wherein the middle part of the insert block is provided with a notch groove which is communicated with the movement channel, and a longitudinally arranged elastic arm is arranged in the notch groove and is abutted against the inner side wall of the insert cavity; when the vibrating machine core is inserted into the machine core channel, the vibrating machine core abuts against the inner side wall of the machine core channel, and the elastic arm abuts against the vibrating machine core.

4. The powered toothbrush head of claim 3, wherein the insert comprises a housing and an insert shaft disposed on the housing; the inserting shaft is in butt joint with the top of the base body, and the base body and the inserting shaft are integrally formed; the movement channel passes through the seat body and extends to the lower part of the insertion shaft; the notch groove is formed in the inserting shaft, and the bottom abutting ring is arranged on the periphery of the bottom of the seat body;

the inserting shaft and the base body are respectively inserted into the inserting cavity, and the outer side wall of the inserting shaft and the outer side wall of the base body are respectively abutted against the inner side wall of the inserting cavity; the upper part of the inserting shaft is solid to form a fixed section, and the outer side wall of the fixed section is abutted against the inner side wall of the inserting cavity; the fixing section is internally provided with pin holes which are transversely arranged, the pin holes are transversely aligned with the mounting holes, and the pin shafts are inserted and fixed in the pin holes.

5. The powered toothbrush head of claim 4, wherein the outer perimeter of the fixed section is provided with a longitudinally disposed locating surface, the locating surface being planar; the inner side wall of the insertion cavity is provided with a positioning side wall which is longitudinally arranged, the positioning side wall is planar, and the positioning surface is abutted against the positioning side wall; the bolt passes through the positioning side wall and the positioning surface respectively.

6. The powered toothbrush head of claim 4, wherein a lower portion of the insert forms a vibrating section, the cartridge channel extending into the vibrating section, the notch slot being disposed in the vibrating section; a vibration gap is formed between the outer side wall of the vibration section and the inner side wall of the insertion cavity; the seat body is provided with an outer peripheral side wall which is arranged outwards, the outer peripheral side wall is arranged obliquely inwards along the direction of inserting the seat body into the insertion cavity, and the outer peripheral side wall is abutted against the inner side wall of the insertion cavity.

7. The electric toothbrush head according to any one of claims 3 to 6 wherein the upper ends of the elastic arms are connected to the inner side walls of the notch grooves, and the lower ends of the elastic arms extend into the notch grooves and are arranged freely; the elastic arm is provided with an inner abutting surface facing the movement channel and an outer abutting surface arranged away from the movement channel, the inner abutting surface abuts against the vibration movement, and the outer abutting surface abuts against the inner side wall of the insertion cavity; the vibration machine core is provided with a transverse groove which is transversely arranged, the inner abutting surface is convexly provided with a transverse line raised line which is transversely arranged, and the transverse raised line is embedded in the transverse groove.

8. The powered toothbrush head of claim 7, wherein an upper portion of the outer abutment surface is recessed toward the cartridge channel to form a recess and a lower portion of the outer abutment surface is outwardly convex to form a projection; the thickness of the upper portion of the elastic arm is smaller than that of the lower portion of the elastic arm, the protruding portion is abutted to the inner side wall of the inserting cavity, and an elastic gap is formed between the recessed portion and the inner side wall of the inserting cavity.

9. The powered toothbrush head of claim 7, wherein a middle portion of the resilient arm is provided with a longitudinally disposed sandwich slot extending through a lower end of the resilient arm; the interlayer groove is filled with an elastic adhesive layer, the entire interlayer groove is filled with the adhesive layer, and the adhesive layer is in a pressed state in the interlayer groove; the adhesive layer penetrates through the elastic arm to penetrate through the inner abutting surface to form an elastic surface protruding out of the inner abutting surface;

the inside of glue film is equipped with a plurality of fretwork holes, works as after the vibration core inserts the core passageway, the elastic surface butt is on the vibration core, the elastic surface receives the butt inwards compression to arrange with interior butt face parallel and level.

10. The electric toothbrush head according to any one of claims 1 to 6, characterized in that an installation gap is formed between the end of the pin shaft and the end of the pin hole, a plurality of elastic rubber rings are embedded in the outer side wall of the pin shaft, the rubber rings are arranged at intervals along the axial direction of the pin shaft, and the rubber rings are arranged circumferentially around the pin shaft;

the pin shaft is internally provided with a plurality of mounting grooves which are arranged at intervals along the axial direction of the pin shaft, and the mounting grooves are circumferentially arranged along the circumferential direction of the pin shaft; the rubber ring is embedded in the mounting groove, the bottom of the rubber ring is abutted to the bottom of the mounting groove, and the top of the rubber ring extends out of the mounting groove; a deformation gap is formed between two sides of the rubber ring and the inner side wall of the mounting groove, a hollowed-out groove is formed in the middle of the rubber ring, the hollowed-out groove is circumferentially arranged along the circumferential direction of the rubber ring, and the hollowed-out groove penetrates through the top of the rubber ring;

after the pin shaft is inserted into the brush body and the insert block, the rubber ring is pressed towards the deformation gap and the hollowed-out groove to be elastically compressed and deformed, and the rubber ring is in a pressed state.

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