Toothbrush and toothbrush head thereof

Abstract

The utility model discloses a toothbrush and a toothbrush head thereof. The toothbrush head comprises a brush rod and a brush head assembly connected with the brush rod, the brush head assembly comprises a bristle fixing part which comprises a first side face and a second side face which are oppositely arranged, and a plurality of brush wires are installed on the first side face; the body comprises a first end and a second end which are oppositely arranged, the second end is connected with the brush rod, the first end extends to form a supporting beam, and the supporting beam is located on the side, away from the brush wires, of the bristle fixing part; soft colloid is filled between the supporting beam and the bristle fixing part, and a shaft forming structure is arranged on the supporting beam and / or the bristle fixing part, so that the supporting beam and the bristle fixing part swing relative to each other through a shaft formed by the shaft forming structure. The toothbrush head improves the use effect of the toothbrush.

Description

TECHNICAL FIELD

[0001] The utility model relates to toothbrush technical field, especially toothbrush and toothbrush head thereof. BACKGROUND

[0002] Toothbrush is the oral care appliance necessary for human. With the emergence of electric toothbrush, the characteristics of high efficiency, portability and good cleaning effect of electric toothbrush make electric toothbrush more and more popular among consumers.

[0003] The head of toothbrush is provided with bristles, the hardness of bristles is moderate, which can ensure that bristles support the cleaning of oral cavity and also ensure that bristles do not damage the gums. However, only the design of bristles, the use effect of toothbrush is not good and needs to be improved. SUMMARY

[0004] The main purpose of the utility model is to provide a toothbrush and toothbrush head thereof for improving the use effect of toothbrush.

[0005] To achieve the above purpose, the utility model provides a toothbrush head, which comprises a brush rod and a brush head assembly connected with the brush rod.

[0006] The bristle fixing part comprises a first side and a second side arranged oppositely, and a plurality of bristles are installed on the first side.

[0007] The body comprises a first end and a second end arranged oppositely, the second end is connected with the brush rod, the first end extends to form a support beam, the support beam is located on the side of the bristle fixing part away from the bristles, a soft rubber body is arranged between the support beam and the bristle fixing part, and an axle forming structure is arranged on the support beam and / or the bristle fixing part, so that the support beam and the bristle fixing part swing relative to each other along the axle formed by the axle forming structure.

[0008] Optionally, the support beam comprises a first side and a second side arranged oppositely, and the first side of the support beam is arranged towards the bristle fixing part; the first side of the support beam comprises a first support surface and a first swing surface, the first swing surface is located on both sides of the first support surface, the vertical distance between the first support surface and the second side of the bristle fixing part is smaller than the vertical distance between the first swing surface and the second side of the bristle fixing part, and the first support surface serves as the axle forming structure to form the axle.

[0009] Optionally, the support beam comprises a first side and a second side arranged oppositely, and the first side of the support beam is arranged towards the bristle fixing part; a first protruding part is protruded on the first side of the support beam, and the first protruding part serves as the axle forming structure to form the axle.

[0010] Optionally, the first protruding part is triangular, trapezoidal or crescent in cross section along the vertical direction of the first side of the support beam.

[0011] Optionally, the first protruding part includes at least two, and the plurality of first protruding parts are arranged in a straight line.

[0012] Optionally, the second side of the bristle fixing part is provided with a second protruding part, the second protruding part forms a shaft forming structure to form the shaft.

[0013] Optionally, the second protruding part includes at least two, and the plurality of second protruding parts are arranged in a straight line.

[0014] Optionally, the second side of the bristle fixing part includes a second support surface and a second swing surface on both sides of the second support surface, the vertical distance between the second support surface and the support beam is less than the vertical distance between the second swing surface and the support beam, the second support surface forms a shaft forming structure to form the shaft.

[0015] Optionally, the second side of the bristle fixing part is provided with a first inner recess, and the curvature radius of the inner arc surface of the first inner recess is greater than the curvature radius of the outer arc surface of the first protruding part, the first inner recess and the first protruding part form a shaft forming structure to form the shaft.

[0016] Optionally, the support beam includes oppositely arranged first and second sides, the first side of the support beam is arranged towards the bristle fixing part; the first side of the support beam is provided with a second inner recess, the curvature radius of the second inner recess is greater than the curvature radius of the second protruding part, and the second inner recess and the second protruding part form a shaft forming structure to form the shaft.

[0017] Optionally, the bristle fixing part further includes a circumferential surface between the first side of the bristle fixing part and the second side of the bristle fixing part, and one end of the soft body extends from the second side of the bristle fixing part to the circumferential surface of the bristle fixing part.

[0018] Optionally, the support beam includes oppositely arranged first and second sides, and a connecting surface connecting the first and second sides, and the other end of the soft body extends to the connecting surface of the support beam.

[0019] Optionally, the part of the soft body covering the connecting surface of the support beam is provided with a concave groove, and / or the connecting surface is provided with a concave-convex surface.

[0020] Optionally, the bristle fixing part comprises a brush sheet, one side of the brush sheet is provided with at least two bristle implanting areas, at least one bristle implanting hole is arranged in the bristle implanting area, and the brush wire is fused in the bristle implanting hole; a groove is formed between each bristle implanting area, and the groove is filled with soft glue.

[0021] Optionally, the bristle implanting area comprises a first bristle implanting area away from the body, a third bristle implanting area close to the body, and a second bristle implanting area between the first bristle implanting area and the third bristle implanting area; the brush wire in the first bristle implanting area is arranged to be inclined away from the body, and / or the brush wire on the outer side in the second bristle implanting area is arranged to be inclined to the outer side, and / or the brush wire in the third bristle implanting area is arranged to be inclined to the body.

[0022] Optionally, the inclination angle of the brush wire in the first bristle implanting area is 1-5°; and / or the inclination angle of the brush wire on the outer side in the second bristle implanting area is 1-5°; and / or the inclination angle of the brush wire in the third bristle implanting area is 1-5°.

[0023] Optionally, the bristle fixing part comprises a brush sheet and a fixing cover, one side of the brush sheet is provided with a plurality of bristle implanting holes, the brush wire is fused in the bristle implanting hole; the fixing cover is located on the side of the brush sheet away from the brush wire, and the fixing cover is connected with the brush sheet; the side of the fixing cover away from the brush sheet is the second side of the bristle fixing part.

[0024] Optionally, the side edge of the brush sheet away from the bristle forms a first clamping part, the outer periphery of the fixing cover is provided with a second clamping part, and the first clamping part and the second clamping part are clamped with each other.

[0025] Optionally, the swing angle between the support beam and the bristle fixing part is 0-5°.

[0026] Optionally, the second end of the body is detachably connected with the brush rod; or the second end of the body is integrally formed with the brush rod.

[0027] Optionally, one end of the brush rod away from the brush head assembly is provided with a motor shaft insertion hole.

[0028] Optionally, the contact part and the non-contact part are formed between the support beam and the bristle fixing part; the non-contact part is filled with the soft glue body.

[0029] Optionally, the fixing hole extending towards the second side is arranged on the first side of the support beam, and the fixing hole is arranged on the first support surface or the first protruding part, and the fixing hole is filled with soft glue.

[0030] The utility model discloses still provide a toothbrush, and the toothbrush includes toothbrush head and brush handle, and the brush rod of toothbrush head and brush handle detachable connection or integral forming, toothbrush head is the toothbrush head structure of any one embodiment above.

[0031] The utility model discloses beneficial technical effect is: 1) toothbrush head forms structure through support beam, brush fixed part and the shaft that is equipped with on support beam and / or brush fixed part, makes support beam and brush fixed part swing each other around the shaft that forms structure forms structure, so, when using, can according to the shape of tooth or the stress condition of toothbrush head, make support beam and brush fixed part swing each other, thereby drive the brush of brush fixed part swing. Therefore, the utility model discloses toothbrush head not only can flexible adjustment tooth's cleaning angle, also is more suitable for the cleaning of various teeth, has promoted toothbrush use effect, 2) support beam and brush fixed part between fill with soft glue, and the elasticity of soft glue can control the amplitude of toothbrush head swing, 3) toothbrush head passes through the soft glue of the soft glue of brush fixed part periphery and / or support beam connecting surface, has reduced the damage of hard glue to oral cavity toothbrush mucosa. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art comes, under the premise of not paying the creative labor, still can obtain other drawings according to the structure shown in these drawings.

[0033] Figure 1 It is the structural schematic diagram of an embodiment of the toothbrush of the utility model;

[0034] Figure 2 It is the structural schematic diagram of another embodiment of the toothbrush of the utility model;

[0035] Figure 3 It is the structural schematic diagram of an embodiment of the toothbrush head of the utility model;

[0036] Figure 4 It is the structural schematic diagram of an embodiment of the support beam in the toothbrush head of the utility model;

[0037] Figure 5 It is the structural schematic diagram of another embodiment of the support beam in the toothbrush head of the utility model;

[0038] Figure 6 It is the sectional structure schematic diagram of an embodiment of the toothbrush head of the utility model along with the direction perpendicular to the extension direction of toothbrush brush handle;

[0039] Figure 7 It is the structural schematic diagram of another embodiment of the support beam in the toothbrush head of the utility model;

[0040] Fig. 8 is a structural schematic view of a plurality of embodiments of the contact portion and the non-contact portion formed between the support beam and the bristle fixing portion in the toothbrush head of the present application;

[0041] Figure 9 Fig. 8 is a structural schematic view of a plurality of embodiments of the contact portion and the non-contact portion formed between the support beam and the bristle fixing portion in the toothbrush head of the present application;

[0042] Figure 10 Fig. 8 is a structural schematic view of a plurality of embodiments of the contact portion and the non-contact portion formed between the support beam and the bristle fixing portion in the toothbrush head of the present application;

[0043] Figure 11 Fig. 8 is a structural schematic view of a plurality of embodiments of the contact portion and the non-contact portion formed between the support beam and the bristle fixing portion in the toothbrush head of the present application;

[0044] Figure 12 Fig. 8 is a structural schematic view of a plurality of embodiments of the contact portion and the non-contact portion formed between the support beam and the bristle fixing portion in the toothbrush head of the present application;

[0045] Figure 13 Fig. 8 is a structural schematic view of a plurality of embodiments of the contact portion and the non-contact portion formed between the support beam and the bristle fixing portion in the toothbrush head of the present application;

[0046] Figure 14 Fig. 8 is a structural schematic view of a plurality of embodiments of the contact portion and the non-contact portion formed between the support beam and the bristle fixing portion in the toothbrush head of the present application;

[0047] Figure 15 Fig. 8 is a structural schematic view of a plurality of embodiments of the contact portion and the non-contact portion formed between the support beam and the bristle fixing portion in the toothbrush head of the present application;

[0048] Figure 16 Fig. 8 is a structural schematic view of a plurality of embodiments of the contact portion and the non-contact portion formed between the support beam and the bristle fixing portion in the toothbrush head of the present application;

[0049] Figure 17 Fig. 8 is a structural schematic view of a plurality of embodiments of the contact portion and the non-contact portion formed between the support beam and the bristle fixing portion in the toothbrush head of the present application;

[0050] Fig. 8 is a structural schematic view of a plurality of embodiments of the contact portion and the non-contact portion formed between the support beam and the bristle fixing portion in the toothbrush head of the present application;

[0051] Fig. 8 is a structural schematic view of a plurality of embodiments of the contact portion and the non-contact portion formed between the support beam and the bristle fixing portion in the toothbrush head of the present application;

[0052] Figure 20 Fig. 8 is a structural schematic view of a plurality of embodiments of the contact portion and the non-contact portion formed between the support beam and the bristle fixing portion in the toothbrush head of the present application;

[0053] Figure 21 Fig. 8 is a structural schematic view of a plurality of embodiments of the contact portion and the non-contact portion formed between the support beam and the bristle fixing portion in the toothbrush head of the present application;

[0054] Figure 22 Fig. 2 is a schematic view of a cross-sectional structure of the toothbrush head according to the embodiment of the present application along a direction perpendicular to the extending direction of the toothbrush handle;

[0055] Figure 23 Fig. 3 is a schematic view of a cross-sectional structure of the toothbrush head according to the embodiment of the present application along a direction perpendicular to the extending direction of the toothbrush handle.

[0056] In order to facilitate the display of the toothbrush replacement head structure, the structure in part of the drawings is enlarged.

[0057] Explanation of reference numerals:

[0058] Toothbrush-1;

[0059] Toothbrush head-100; brush rod-10; motor shaft insertion hole-101;

[0060] Brush head assembly-20; bristle fixing part-21; first side surface of the bristle fixing part-21a; second side surface of the bristle fixing part-21b; peripheral side surface-21c; second protruding part-211; contact surface-2111; second swing surface-2112; brush sheet-212; first bristle planting area-2121a; second bristle planting area-2121b; third bristle planting area-2121c; bristle planting hole-2122; groove-2123; first clamping part-2124; fixed cover-213; second clamping part-2131; first inner recess-214; brush wire-22; body-23; first end of the body-23a; second end of the body-23b; support beam-24; first side surface of the support beam-24a; second side surface of the support beam-24b; connecting surface-24c; first support surface-241; first swing surface-242; first protruding part-243; second inner recess-244; fixed hole-245; soft rubber body-25; concave arc groove-251;

[0061] Toothbrush handle-200; soft rubber body installation position-201; holding position-202;

[0062] Main machine-300; motor shaft-301.

[0063] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0064] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0065] It should be noted that all the directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indications will also change accordingly.

[0066] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium; can be internal communication of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0067] In addition, if the present application embodiments involve "first", "second", etc. description, the "first", "second", etc. description is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features with "first", "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. For example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

[0068] The present application provides a novel toothbrush structure, especially a toothbrush head structure. The toothbrush mentioned in the present application can be a manual toothbrush or an electric toothbrush.

[0069] Referring to Figure 1The toothbrush 1 comprises a toothbrush head 100 and a brush handle 200. The toothbrush head 100 comprises a brush rod 10 and a brush head assembly 20 connected with the brush rod 10. The brush rod 10 can be integrally formed with the brush handle 200, so that the toothbrush head 100 and the brush handle 200 are an integral structure. Of course, in an alternative embodiment, the brush rod 10 is detachably connected with the brush handle 200. For example, the brush handle 200 has a mounting flange at an end thereof facing the brush rod 10, and the brush rod 10 is recessed with a mounting hole receiving the mounting flange at an end thereof facing the brush handle 200. The mounting flange and the mounting hole are threadedly connected or clamped to achieve the detachable connection between the brush rod 10 and the brush handle 200. Further, the front face (the face on which the bristles are located) of the brush handle 200 can also be provided with at least one soft rubber mounting position 201 for mounting soft rubber; and the side face of the brush handle 200 is also provided with a plurality of holding positions 202, facilitating the user to hold the toothbrush 1.

[0070] With reference to Figure 2 and Figure 3 , the toothbrush 1 comprises a toothbrush head 100 and a main machine 300, and a motor assembly, a control circuit, a power supply and other structures (not shown in the figure) located in the main machine 300. The main machine 300 is also called a brush handle. The toothbrush head 100 is connected with the main machine 300 through a detachable connection mode, facilitating replacement of the toothbrush head 100. The main machine 300 protrudes a power output shaft 301 at an end thereof facing the toothbrush head 100, and the toothbrush head 100 is recessed with a motor shaft insertion hole 101 at an end thereof close to the main machine 300. The power output shaft 301 is inserted into the motor shaft insertion hole 101 of the brush head 100, so as to mount the brush head 100 on the main machine 300. When the motor assembly works, the power output shaft 301 transmits power to the toothbrush head 100, so as to drive the toothbrush head 100 to rotate or vibrate, achieving efficient cleaning of the oral cavity.

[0071] With reference to Figure 3 , Figure 4 , Figure 5 and Figure 6 , in an embodiment of the present application, the toothbrush head, i.e. the aforementioned toothbrush head 100, comprises a brush rod 10 and a brush head assembly 20 connected with the brush rod 10.

[0072] The brush rod 10 is in a cylindrical shape and comprises a first end and a second end. The first end of the brush rod 10 is closer to the brush head assembly 20 than the second end. The brush head assembly 20 is detachably connected with the brush rod 10 at an end thereof close to the brush rod 10, or integrally formed with the brush rod 10.

[0073] The brush head assembly 20 comprises a bristle fixing portion 21, a body 23 and a soft rubber body 25. Among them,

[0074] The bristle fixing part 21 comprises a first side 21a, a second side 21b and a circumferential side 21c connecting the first side 21a and the second side 21b, and a plurality of bristles 22 are installed on the first side 21a of the bristle fixing part 21. The top end of the bristle 22 is in the shape of a silver ingot, which is beneficial to improve the cleaning power of the toothbrush.

[0075] The body 23 comprises a first end 23a and a second end 23b, and the second end 23b of the body 23 is connected with the brush rod 10. The second end 23b of the body 23 is detachably connected with the brush rod 10 or is integrally formed with the brush rod 10, for example, the first end of the brush rod 10 extends to form the body 23 near the brush head assembly 20.

[0076] The first end 23a of the body 23 extends in a direction away from the second end 23b to form a support beam 24, which is located on the side of the bristle fixing part 21 away from the bristles 22, and a contact part and a non-contact part are formed between the support beam 24 and the bristle fixing part 21. In this way, the contact part forms a shaft, and the support beam 24 and the bristle fixing part 21 swing relative to each other around the shaft in the direction of the non-contact part.

[0077] Specifically, the support beam 24 is in the shape of a strip and comprises a first side 24a, a second side 24b and a connecting surface 24c connecting the first side 24a and the second side 24b. The first side 24a of the support beam 24 is arranged towards the second side 21b of the bristle fixing part 21, and a partial contact is formed between the first side 24a of the support beam 24 and the second side 21b of the bristle fixing part 21, and the rest part has a gap to form a non-contact part.

[0078] The soft gel 25 at least covers the second side 21b of the bristle fixing part 21 and fills the gap between the support beam 24 and the bristle fixing part 21, i.e. the non-contact part. The soft gel is filled in the non-contact part to form the soft gel 25, so that when a force is applied, the support beam 24 and the bristle fixing part 21 swing relative to each other around the shaft formed by the contact part; through the soft gel 25, the elasticity of the soft gel can control the swing within a certain range, and on the other hand, the support beam 24 and the bristle fixing part 21 can return to the initial state when the force disappears.

[0079] Specifically, in an embodiment, the soft gel 25 extends from the second side 21b of the bristle fixing part 21 to the circumferential side 21c of the bristle fixing part 21, or extends from the second side 21b of the bristle fixing part 21 to the circumferential side 21c and then to the first side 21a of the bristle fixing part 21, so that the bristle fixing part 21 can be covered more tightly. Moreover, the soft gel 25 also avoids damage to the oral cavity caused by the bristle fixing part 21.

[0080] In another embodiment, the soft gel 25 can extend from the second side 21b of the bristle fixing portion 21 to the connecting surface 24c of the support beam 24 and be flush with the second side 24b of the support beam 24. The second side 24b of the support beam 24 can be exposed from the soft gel 25, or the second side 24b of the support beam 24 can be completely covered by the soft gel 25. Thus, the soft gel 25 can cover the support beam 24 more closely, and the soft gel 25 can also avoid damage to the oral cavity caused by the bristle fixing portion 21.

[0081] In yet another embodiment, referring to Figure 6 , the soft gel 25 is formed with a concave arc groove 251 at the portion covering the connecting surface 24c of the support beam 24. The concave arc groove 251 is arranged to make the bristle fixing portion 21 and the support beam 24 more easily swing relative to each other when swinging. The extension direction of the concave arc groove 251 is consistent with the extension direction of the shaft.

[0082] In yet another embodiment, the connecting surface 24c of the support beam 24 is also formed with a concave-convex surface, such as the stepped surface formed in Figure 6 , which can not only improve the strength of the support beam 24, but also increase the contact area between the connecting surface 24c of the support beam 24 and the soft gel 25, so that the connection between the two is more stable.

[0083] Referring to Figure 4 , in an embodiment, the first side 24a of the support beam 24 includes a first support surface 241 and first swing surfaces 242, the first support surface 241 is located at the middle position of the first side 24a, and the first swing surfaces 242 are located on both sides of the first support surface 241. The first swing surfaces 242 are inclined surfaces extending outward in a direction parallel to the first support surface 241, and also extending in a direction perpendicular to the first support surface 241 and away from the first support surface 241. In this way, when the support beam 24 and the bristle fixing portion 21 are installed, the first support surface 241 and the second side 21b of the bristle fixing portion 21 abut to form a contact portion, and the first swing surfaces 242 and the second side 21b of the bristle fixing portion 21 have a gap therebetween, i.e., a non-contact portion. The first support surface 241 of the support beam 24 serves as a shaft-forming structure to form a shaft, the extension direction of the first support surface of the support beam 24 is the shaft line direction, and the support beam 24 and the bristle fixing portion 21 swing relative to each other in a direction perpendicular to the extension direction of the body 23, i.e., swing around the shaft in the direction of the first swing surface 242.

[0084] Referring to Figure 7In another embodiment, the first side 24a of the support beam 24 is provided with a first protrusion 243. The first protrusion 243 can be one, two or more. If the first protrusion 243 is two or more, the extension direction of each first protrusion 243 is on the same straight line. The first protrusion 243 forms a contact portion and a non-contact portion between the first side 24a of the support beam 24 and the second side 21b of the bristle fixing portion 21. The first protrusion 243 forms a shaft as a structure, and the extension direction of the first protrusion 243 is the axial direction. The support beam 24 and the bristle fixing portion 21 swing around the shaft formed by the first protrusion 243 in a direction perpendicular to the extension direction of the body 23.

[0085] Further, with reference to Figures 8a-8f , the cross section of the first protrusion 243 along the vertical direction of the first side 24a of the support beam 24 is triangular, trapezoidal or crescent-shaped. Correspondingly, the portion of the second side 21b of the bristle fixing portion 21 that contacts the support beam 24 can be a flat surface or a concave surface.

[0086] In particular, with reference to Figure 8d , the second side 21b of the bristle fixing portion 21 is concavely provided with a first inner recess 214, and the curvature radius of the inner arc surface of the first inner recess 214 is greater than the curvature radius of the outer arc surface of the first protrusion 243, so that a contact portion and a non-contact portion are formed between the bristle fixing portion 21 and the support beam 24.

[0087] With reference to Figure 6 and Figure 9 , Figure 10 , the bristle fixing portion 21 includes a bristle sheet 212 and a fixing cover 213, and the bristle sheet 212 and the fixing cover 213 are clamped and connected. As Figure 9 and Figure 10 , the side edge of the bristle sheet 212 away from the bristles 22 forms a first clamping portion 2124, and the outer periphery of the fixing cover 213 is provided with a second clamping portion 2131. The first clamping portion 2124 and the second clamping portion 2131 are clamped to each other to fixedly connect the bristle sheet 212 and the fixing cover 213. The first clamping portion 2124 can be arranged around the edge of the bristle sheet 212, and the second clamping portion 2131 can also be arranged around the fixing cover 213. The first clamping portion 2124 can be a flange, and the second clamping portion 2131 can be a groove; or the first clamping portion 2124 can be a groove, and the second clamping portion 2131 can be a flange.

[0088] The side of the above-mentioned fixing cover 213 away from the bristle sheet 212 is the second side 21b of the bristle fixing portion 21. It can be understood that the fixing cover of the above-mentioned bristle fixing portion 21 can also be omitted, and the side of the bristle sheet 212 away from the bristles 22 is the second side 21b of the bristle fixing portion 21.

[0089] Further, in combination with referring to Figure 10 and Figure 11 , Figure 12 , Figure 13 , one side of the brush sheet 212 is provided with at least two bristle planting areas, at least one bristle planting hole 2122 is arranged in the bristle planting area, and the brush wire 22 is welded in the bristle planting hole 2122. In this way, the copper sheet for installing the brush wire is avoided. Further, a groove 2123 is formed between each bristle planting area, and the groove 2123 is filled with soft glue. In this way, when the soft glue 25 extends to the first side surface 21a of the brush hair fixing part 21, it can more tightly wrap the brush sheet 212.

[0090] The bristle planting area includes a first bristle planting area 2121a away from the body 23, a third bristle planting area 2121c close to the body 23, and a second bristle planting area 2121b between the first bristle planting area 2121a and the third bristle planting area 2121c; the brush wire in the first bristle planting area 2121a is arranged to be inclined away from the body 23, and / or the brush wire on the outer side in the second bristle planting area 2121b is arranged to be inclined to the outer side, and / or the brush wire in the third bristle planting area 2121c is arranged to be inclined to the body 23. The brush hair arranged to be inclined can improve the cleaning power of the toothbrush.

[0091] Specifically, L0 is a straight line in the direction perpendicular to the brush sheet 212 or the fixing cover 213, L1 is a straight line in the extension direction of the brush wire in the first bristle planting area 2121a, the inclination angle A of the brush wire in the first bristle planting area 2121a is 1-5°, and preferably 3°. And / or, L3 is a straight line in the extension direction of the brush wire on the outer side in the second bristle planting area 2121b, the inclination angle C of the brush wire on the outer side in the second bristle planting area 2121b is 1-5°, and preferably 2°; and / or, L2 is a straight line in the extension direction of the brush wire in the third bristle planting area 2121c, the inclination angle B of the brush wire in the third bristle planting area 2121c is 1-5°, and preferably 3°.

[0092] Referring to Figure 14 and Figure 15 , the second side surface 21b of the brush hair fixing part 21 is provided with a second protruding part 211, which forms a contact part and a non-contact part between the brush hair fixing part 21 and the support beam 24. The second protruding part 211 can be a long strip structure as shown in Figure 14 , or a plurality of second protruding parts 211 can be arranged as shown in Figure 15 , and the plurality of second protruding parts 211 are arranged in a straight line.

[0093] In combination with referring to Figure 14 , Figure 15 and Figure 16, the second protruding part 211 forms a shaft, and the extending direction of the second protruding part 211 is the axis L of the shaft. The support beam 24 and the bristle fixing part 21 swing relative to each other around the shaft formed by the second protruding part 211 in a direction perpendicular to the extending direction of the body 23; the swing angle D of the support beam 24 and the bristle fixing part 21 is 0-5°.

[0094] With reference to Figure 17 , the second side 21b of the bristle fixing part 21 comprises a second support surface 2111 and a second swing surface 2112 located on both sides of the second support surface 2111, the second support surface 2111 forms a contact with the support beam 24 as a contact part, and the second swing surface 2112 forms a gap with the support beam 24 as a non-contact part.

[0095] Further, with reference to Figures 18a to 18f , the cross section of the second protruding part 211 along the vertical direction of the second side 21b of the bristle fixing part 21 is triangular, trapezoidal or crescent-shaped. Correspondingly, the part of the first side 24a of the support beam 24 that contacts the bristle fixing part 21 can be a flat surface or a concave surface.

[0096] Specifically, with reference to Figure 18d , the first side 24a of the support beam 24 is concavely provided with a second concave part 244, and the curvature radius of the second concave part 244 is greater than the curvature radius of the second protruding part 211, so that the bristle fixing part 21 and the support beam 24 form a contact part and a non-contact part.

[0097] With reference to Figure 19a to Figure 19c , the first side 24a of the support beam 24 is convexly provided with a first protruding part 243, and the second side 21b of the bristle fixing part 21 is convexly provided with a second protruding part 211, the first protruding part 243 and the second protruding part 211 are arranged in opposite abutment, so that the bristle fixing part 21 and the support beam 24 form a contact part and a non-contact part. The part where the first protruding part 243 and the second protruding part 211 abut forms a shaft, so that the support beam 24 and the bristle fixing part 21 swing around the shaft towards the two sides of the first protruding part 243 and the second protruding part 211.

[0098] It can be understood that the shapes of the first protruding part 243 and the second protruding part 211 can be different, such as the cross section of the first protruding part 243 along the vertical direction of the first side 24a of the support beam 24 is triangular, and the cross section of the second protruding part 211 along the vertical direction of the second side 21b of the bristle fixing part 21 can be triangular, trapezoidal or crescent-shaped.

[0099] The toothbrush head 100 is provided with the support beam 24 and the bristle fixing portion 21, and the support beam 24 and the bristle fixing portion 21 are arranged to be capable of swinging around the shaft, so that the support beam 24 and the bristle fixing portion 21 can swing according to the shape of the teeth or the force applied to the toothbrush head during use, and the bristles on the bristle fixing portion 21 can swing along with the swinging of the support beam 24 and the bristle fixing portion 21. Therefore, the toothbrush head can flexibly adjust the cleaning angle of the teeth, and is more suitable for cleaning various teeth, and the use effect of the toothbrush is improved.

[0100] The setting direction of the shaft in the embodiment of the utility model can have multiple changes, and the shaft formed by the shaft forming structure can be arranged along the extension direction as shown in the drawings. Figure 4 and Figure 14 Specifically, the shaft forming structure (such as the first support surface 241 and the first protruding portion 243) on the support beam 24 is formed along the extension direction of the first end 23a and the second end 23b of the body 23, and correspondingly, the shaft forming structure (such as the second support surface 2111 and the second protruding portion 211) on the bristle fixing portion 21 is also formed along the extension direction of the first end 23a and the second end 23b of the body 23. Based on the toothbrush head with the shaft structure in the embodiment, when the teeth are cleaned in the up-down direction, the support beam 24 and the bristle fixing portion 21 swing to a certain extent, so that the bristles swing along with the swinging of the support beam 24 and the bristle fixing portion 21. Not only can the cleaning angle of the teeth be flexibly adjusted, but also the swinging bristles are more easily cleaned into the tooth gaps, so that the use effect of the toothbrush is improved.

[0101] The shaft forming structure can also be arranged along the extension direction as shown in the drawings. Figures 20-22 Specifically, referring to Figures 20-22 , the shaft forming structure (such as the first protruding portion 243) on the support beam 24 is formed along a direction perpendicular to the extension direction of the support beam 24, and correspondingly, the shaft forming structure (such as the second protruding portion 211) on the second side surface 21b of the bristle fixing portion is also formed along a direction perpendicular to the extension direction of the support beam 24. Referring to Figure 22 , the part where the second protruding portion 211 contacts the first protruding portion 243 on the support beam 24 forms a shaft, and the straight line M is the axis of the shaft. The support beam 24 and the bristle fixing portion 21 swing to each other around the shaft towards the two sides of the first protruding portion 243 and the second protruding portion 211, and the swinging angle E between the support beam 24 and the bristle fixing portion is 0-5°. Based on the toothbrush head with the shaft structure in the embodiment, when the teeth are cleaned in the front-back direction, the support beam 24 and the bristle fixing portion 21 swing to a certain extent, so that the bristles swing along with the swinging of the support beam 24 and the bristle fixing portion 21. Not only can the cleaning angle of the teeth be flexibly adjusted, but also the swinging bristles are more easily cleaned into the tooth gaps, so that the use effect of the toothbrush is improved.

[0102] As a variant structure of the above-mentioned embodiment, referring to Figure 23, a gap H is formed between the first side surface 24a of the support beam 24 and the second side surface 21b of the bristle fixing portion 21, and the gap H is filled with soft glue to form a soft glue body 25. Furthermore, an axle forming structure is provided on the support beam 24 and / or the bristle fixing portion 21, so that the support beam 24 and the bristle fixing portion 21 can swing around the axle formed by the axle forming structure. Specifically:

[0103] In one embodiment, the vertical distance between the first support surface 241 of the support beam 24 and the second side surface 21b of the bristle fixing portion 21 is less than the vertical distance between the first swing surface 242 and the second side surface 21b of the bristle fixing portion 21, and the first support surface 241 can serve as the axle forming structure, and the portion of the first support surface 241 that contacts the soft glue body 25 forms the axle.

[0104] In another embodiment, a gap is formed between the first protrusion 243 and the second side surface 21b of the bristle fixing portion 21, and the gap is filled with soft glue to form the soft glue body 25. The first protrusion 243 provided on the support beam 24 can serve as the axle forming structure, and the portion of the first protrusion 243 that contacts the soft glue body 25 forms the axle.

[0105] In another embodiment, a gap is formed between the second protrusion 211 and the first side surface 24a of the support beam 24, and the gap is filled with soft glue to form the soft glue body 25. The second protrusion 211 provided on the bristle fixing portion 21 can serve as the axle forming structure, and the portion of the second protrusion 211 that contacts the soft glue body 25 forms the axle.

[0106] In another embodiment, the first protrusion 243 and the second protrusion 211 are oppositely arranged and have a gap therebetween, and the gap is filled with soft glue to form the soft glue body 25. The first protrusion 243 provided on the support beam 24 and the second protrusion 211 provided on the bristle fixing portion 21, the portion of the first protrusion 243 that contacts the soft glue body 25 forms a first axle, and the portion of the second protrusion 211 that contacts the soft glue body 25 forms a second axle.

[0107] Since a gap is formed between the first side surface 24a of the support beam 24 and the second side surface 21b of the bristle fixing portion 21, and the gap is filled with soft glue to form the soft glue body 25, the deformation structure of the present embodiment not only enables the support beam 24 and the bristle fixing portion 21 to swing around the axle, but also enables the soft glue between the support beam 24 and the bristle fixing portion 21 to form a buffer, thereby avoiding wear of the contact portion between the support beam 24 and the bristle fixing portion 21 caused by swinging, and improving the service life of the toothbrush.

[0108] In yet another embodiment, continuing to refer to Figure 4 and Figure 7The first supporting surface 241 or the first protrusion 243 is provided with a fixing hole 245 extending towards the second side surface 24b, and the fixing hole 245 is filled with soft glue. By setting the fixing hole 245 to fill the soft glue, the support beam 24 and the bristle fixing portion 21 are more stably connected.

[0109] The core idea of the utility model is that the support beam and the bristle fixing portion are set on the brush head, the shaft forming structure is set on the support beam and / or the bristle fixing portion to form the swing shaft, the support beam and the bristle fixing portion swing with each other, the bristles are swung, the cleaning angle is flexibly adjusted during tooth brushing, and the use effect of the toothbrush is improved. Moreover, the support beam and the bristle fixing portion are filled with the soft glue to form the soft glue body, the effect of buffering is realized, the swing between the support beam and the bristle fixing portion is controlled, and the original state is restored after swinging. Therefore, whether the soft glue only fills the non-contact part of the support beam and the bristle fixing portion or fills the gap between the support beam and the bristle fixing portion, it is within the protection scope of the utility model.

[0110] The above is only the optional embodiment of the utility model, and does not limit the patent range of the utility model, and the equivalent structural transformation of the utility model specification and the attached drawing contents, or the direct / indirect application in other related technical fields under the concept of the utility model are included in the patent protection scope of the utility model.

Claims

1. A toothbrush head (100) characterized by, The toothbrush head (100) comprises a brush rod (10) and a brush head assembly (20) connected with the brush rod (10); the brush head assembly (20) comprises: A bristle fixing part (21) comprising a first side and a second side arranged oppositely, the first side of the bristle fixing part (21) is provided with a plurality of bristles (22); A body (23) comprising a first end (23a) and a second end (23b) arranged oppositely, the second end (23b) is connected with the brush rod (10), the first end (23a) extends to form a support beam (24), the support beam (24) is located on the side of the bristle fixing part (21) away from the bristles, a soft rubber (25) is arranged between the support beam (24) and the bristle fixing part (21), and the support beam (24) and / or the bristle fixing part (21) is provided with an axis forming structure, so that the support beam (24) and the bristle fixing part (21) swing relative to each other along the axis formed by the axis forming structure.

2. The toothbrush head of claim 1, wherein, The support beam (24) comprises a first side and a second side arranged oppositely, the first side of the support beam is arranged towards the bristle fixing part (21); the first side of the support beam comprises a first support surface (241) and a first swing surface (242), the first swing surface (242) is located on both sides of the first support surface (241), the vertical distance between the first support surface (241) and the second side of the bristle fixing part (21) is smaller than the vertical distance between the first swing surface (242) and the second side of the bristle fixing part (21), and the first support surface (241) serves as the axis forming structure to form the axis.

3. The toothbrush head of claim 1, wherein, The support beam (24) comprises a first side and a second side arranged oppositely, the first side of the support beam is arranged towards the bristle fixing part (21); the first side of the support beam is provided with a first protruding part (243), and the first protruding part (243) serves as the axis forming structure to form the axis.

4. The toothbrush head of claim 3, wherein, The first protruding part (243) is triangular, trapezoidal or crescent-shaped in the vertical direction of the first side of the support beam (24); and / or the first protruding part (243) comprises at least two first protruding parts (243), and the plurality of first protruding parts (243) are arranged in a straight line.

5. The toothbrush head of claim 1, wherein, The second side of the bristle fixing part (21) is provided with a second protruding part (211), and the second protruding part (211) serves as the axis forming structure to form the axis.

6. The toothbrush head of claim 5, wherein, The second protruding part (211) comprises at least two second protruding parts (211), and the plurality of second protruding parts (211) are arranged in a straight line.

7. The toothbrush head of claim 1, wherein, The second side of the bristle fixing part comprises a second support surface (2111) and a second swing surface (2112) on both sides of the second support surface (2111), the vertical distance between the second support surface (2111) and the support beam (24) is smaller than the vertical distance between the second swing surface (2112) and the support beam (24), and the second support surface (2111) forms the shaft as the shaft forming structure.

8. The toothbrush head of claim 3, wherein, The second side of the bristle fixing part (21) is concave with a first inner concave part (214), and the curvature radius of the inner arc surface of the first inner concave part (214) is greater than the curvature radius of the outer arc surface of the first protruding part (243), the first inner concave part (214) and the first protruding part (243) form the shaft as the shaft forming structure.

9. The toothbrush head of claim 5, wherein, The support beam (24) comprises a first side and a second side arranged oppositely, and the first side of the support beam (24) is arranged towards the bristle fixing part (21); the first side of the support beam (24) is concave with a second inner concave part (244), the curvature radius of the second inner concave part (244) is greater than the curvature radius of the second protruding part (211), and the second inner concave part (244) and the second protruding part (211) form the shaft as the shaft forming structure.

10. The toothbrush head of claim 1, wherein, The bristle fixing part (21) further comprises a circumferential side (21c) between the first side of the bristle fixing part (21) and the second side of the bristle fixing part (21), and one end of the soft body (25) extends from the second side of the bristle fixing part (21) to the circumferential side (21c) of the bristle fixing part (21).

11. The toothbrush head of claim 10, wherein, The support beam (24) comprises a first side and a second side arranged oppositely, and a connecting surface (24c) connecting the first side and the second side, and the other end of the soft body (25) extends to the connecting surface (24c) of the support beam (24).

12. The toothbrush head of claim 11, wherein, The part of the connecting surface (24c) of the support beam (24) covered by the soft body (25) is formed with a concave groove (251), and / or the connecting surface (24c) is formed with a concave-convex surface.

13. The toothbrush head of claim 1, wherein, The bristle fixing part (21) comprises a brush sheet (212), one side of the brush sheet (212) is provided with at least two bristle planting areas, at least one bristle planting hole (2122) is arranged in each bristle planting area, and the brush wire (22) is fused in the bristle planting hole (2122); a groove (2123) is formed between each bristle planting area, and the groove (2123) is filled with soft glue.

14. The toothbrush head of claim 13, wherein, The bristle implanting area comprises a first bristle implanting area (2121a) away from the body (23), a third bristle implanting area (2121c) close to the body (23), and a second bristle implanting area (2121b) between the first bristle implanting area (2121a) and the third bristle implanting area (2121c); the bristles in the first bristle implanting area (2121a) are arranged obliquely towards the direction away from the body (23), and / or the bristles on the outer side in the second bristle implanting area (2121b) are arranged obliquely towards the outer side, and / or the bristles in the third bristle implanting area (2121c) are arranged obliquely towards the direction close to the body (23).

15. The toothbrush head of claim 14, wherein, The oblique angle of the bristles in the first bristle implanting area (2121a) is 1-5°; and / or the oblique angle of the bristles on the outer side in the second bristle implanting area (2121b) is 1-5°; and / or the oblique angle of the bristles in the third bristle implanting area (2121c) is 1-5°.

16. The toothbrush head of claim 1, wherein The bristle fixing part (21) comprises a bristle sheet (212) and a fixing cover (213), one side of the bristle sheet (212) is provided with a plurality of bristle implanting holes (2122), and the bristles (22) are fused in the bristle implanting holes (2122); the fixing cover (213) is located on the side of the bristle sheet (212) away from the bristles (22), and the fixing cover (213) is connected with the bristle sheet (212); the side face of the fixing cover (213) away from the bristle sheet is a second side face of the bristle fixing part (21).

17. The toothbrush head of claim 16, wherein The side edge of the bristle sheet (212) away from the bristles forms a first clamping part (2124), and the outer periphery of the fixing cover (213) is provided with a second clamping part (2131), the first clamping part (2124) and the second clamping part (2131) clamping each other.

18. The toothbrush head of claim 1, wherein, The swing angle between the support beam (24) and the bristle fixing part (21) is 0-5°.

19. The toothbrush head of claim 1, wherein, The second end (23b) of the body (23) is detachably connected with the brush rod (10); or the second end (23b) of the body (23) is integrally formed with the brush rod (10).

20. The toothbrush head of claim 1, wherein, One end of the brush rod (10) away from the brush head assembly (20) is provided with a motor shaft insertion hole (101).

21. The brush head of any one of claims 1-20, wherein, The support beam (24) and the bristle fixing part (21) form a contact part and a non-contact part; the non-contact part is filled with the soft rubber (25).

22. The toothbrush head of claim 2, wherein The first side face of the support beam (24) is provided with a fixing hole (245) extending towards the second side face of the support beam (24), and the fixing hole (245) is located on the first support face (241), and the fixing hole (245) is filled with soft rubber.

23. The toothbrush head of claim 3, wherein The first side face of the support beam (24) is provided with a fixing hole (245) extending towards the second side face of the support beam (24), and the fixing hole (245) is located on the first protruding part (243), and the fixing hole (245) is filled with soft rubber.

24. A toothbrush (1) characterized in that The toothbrush comprises a toothbrush head (100) and a handle (200), the brush rod (10) of the toothbrush head (100) and the handle (200) are detachably connected or integrally formed; the toothbrush head is the toothbrush head of any one of claims 1-22.

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