Toothbrush

Abstract

The utility model belongs to the technical field of oral cavity supplies, and particularly relates to a toothbrush. The toothbrush comprises a clamping mechanism and a brush holder, the clamping mechanism is provided with a first clamping structure and a second clamping structure, and the first clamping structure and the second clamping structure are both arranged on the same side of the clamping mechanism in the length direction and arranged in the width direction of the clamping mechanism at intervals. The first clamping structure and the second clamping structure are connected with brush bases in a clamped mode respectively, the brush bases at the two clamping structures are oppositely arranged at intervals in the width direction, and the brush bases on the two sides are arranged to be capable of getting close to or getting away from each other under the action of the clamping mechanism. According to the toothbrush provided by the invention, the brush seats can be used for cleaning slits between teeth, and the brush seats on the two sides are respectively attached to the front side and the rear side of the slits between the teeth so as to clean the front side and the rear side of the slits between the teeth at the same time.

Description

Technical Field

[0001] The present invention relates to the technical field of oral products, and in particular to a toothbrush. Background Art

[0002] Misaligned teeth can easily lead to premature tooth wear, difficulty in cleaning teeth, and the accumulation of plaque, tartar, caries and periodontal disease. As people's living standards improve, they pay more and more attention to oral health and facial aesthetics, and more and more people are accepting dental correction.

[0003] Orthodontics, also known as orthodontic treatment, is a medical procedure used to improve the alignment and bite of teeth. For those undergoing orthodontic treatment, cleaning between teeth can be difficult, especially between the front and back teeth. Utility Model Content

[0004] The present application provides a toothbrush to solve the technical problem that it is difficult to clean the gaps between the front and back teeth.

[0005] According to the present application, a toothbrush is provided, which includes a clamping mechanism and a brush holder; the clamping mechanism is provided with a first clamping structure and a second clamping structure, the first clamping structure and the second clamping structure are both on the same side of the length direction of the clamping mechanism, and are arranged at intervals in the width direction of the clamping mechanism; the first clamping structure and the second clamping structure are respectively clamped with a brush holder, and the brush holders at the two clamping structures are arranged at relative intervals in the width direction, and the brush holders on both sides are arranged to be able to approach or move away from each other under the action of the clamping mechanism.

[0006] In an optional solution of the present application, the brush holder includes a clamping seat and a brush head. The clamping seat is configured to slide along the length direction and be clamped to the corresponding clamping structure. The brush head is hinged to the clamping seat and can swing relative to the clamping seat.

[0007] In an optional solution of the present application, the brush head is configured to be able to swing on both sides in the length direction relative to the hinge between the brush head and the base.

[0008] In an optional solution of the present application, the maximum unilateral swing angle of the brush head is 10° to 50°.

[0009] In an optional solution of the present application, the clamping mechanism includes a first rod, a second rod and an elastic member; the first rod and the second rod are hinged and spaced apart in the width direction, and the elastic member is clamped between the first rod and the second rod; the same side ends of the first rod and the second rod in the length direction are both clamping ends, the first clamping structure is arranged at the clamping end of the first rod, and the second rod is arranged at the clamping end of the second rod.

[0010] In an optional solution of the present application, the clamping end is provided with an upper mounting hole and a lower mounting hole, the upper mounting hole and the lower mounting hole are located on opposite sides in the up-down direction of the clamping end; the first clamping structure and the second clamping structure are the same and each includes an upper clamping column, a lower clamping column, an upper spring and a lower spring; the upper spring is accommodated in the upper mounting hole, one end of the upper clamping column is located in the upper mounting hole and abuts against the upper spring, the other end of the upper clamping column extends out of the upper mounting hole; the lower spring is accommodated in the lower mounting hole, one end of the lower clamping column is located in the lower mounting hole and abuts against the lower spring, the other end of the lower clamping column extends out of the lower mounting hole; the brush holder is provided with an upper clamping hole and a lower clamping hole, the upper clamping hole is used for matching the extending part of the upper clamping column, and the lower clamping hole is used for matching the extending part of the lower clamping column.

[0011] In an optional solution of the present application, the first rod member is provided with a first ear plate, and the second rod member is provided with a second ear plate; the clamping mechanism includes a pivot shaft, the first ear plate and the second ear plate extend towards each other and are hinged through the pivot shaft, and the elastic member is away from the clamping end relative to the pivot shaft.

[0012] In an optional solution of the present application, the length of the first rod member is shorter than that of the second rod member, and one end of the first rod member away from the clamping end is formed with a handle knob notch; one side of the second rod member away from the clamping end in the length direction is formed with a handle segment, and the handle segment protrudes out of the first rod member in the length direction.

[0013] In an optional solution of the present application, the handle segment is arranged to be detachably spliced.

[0014] In an optional solution of the present application, the elastic member is an elastic sheet and includes a bent sheet segment, a first connecting sheet segment and a second connecting sheet segment; the bent sheet segment is V-shaped, and the first connecting sheet segment and the second connecting sheet segment are respectively connected to the first rod member and the second rod member.

[0015] In summary, the toothbrush provided by the present application has at least the following beneficial effects:

[0016] The toothbrush provided by the present application at least has a clamping mechanism and a brush holder, the clamping mechanism is provided with a first clamping structure and a second clamping structure for fixedly mounting the brush holder, the first clamping structure and the second clamping structure are arranged on the same side in the length direction of the clamping mechanism and are spaced apart in the width direction, so that the brush holders mounted on the first clamping structure and the second clamping structure are aligned in the length direction and are spaced apart relative to each other in the width direction.

[0017] The clamping mechanism can drive the first clamping structure and the second clamping structure to move away from or close to each other in the width direction, thereby driving the brush holders on both sides to move away from or close to each other.

[0018] The brush holder can be used to clean the gaps between teeth. The operator can use the clamping mechanism to move the brush holders on both sides away from each other, and then move the brush holders on both sides close to the front and back sides of the gap to be cleaned, and then move the brush holders on both sides close to each other, so that the brush holders on both sides are respectively attached to the front and back sides of the gap, so as to clean the front and back sides of the gap at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the specific embodiments of this application or the technical solutions in the prior art, the following briefly introduces the drawings required for the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0020] Figure 1 A schematic diagram of a toothbrush provided according to one embodiment of the present application;

[0021] Figure 2 for Figure 1 Partial exploded view of the toothbrush in the middle;

[0022] Figure 3 for Figure 2 Exploded view of the brush holder in the figure;

[0023] Figure 4 for Figure 2 A local enlarged view of the S in the middle;

[0024] Figure 5 It is a partial cross-sectional view of the location of the clamping structure;

[0025] Figure 6 A schematic diagram of a toothbrush provided according to another embodiment of the present application;

[0026] Figure 7 This is a schematic diagram of a toothbrush provided according to another embodiment of the present application.

[0027] The reference numerals are as follows:

[0028] 100. Toothbrush;

[0029] 10. Clamping mechanism; 11. First rod; 111. First ear plate; 12. Second rod; 121. Second ear plate; 122. Grip section; 13. Elastic member; 131. Bend segment; 132. First connecting segment; 133. Second connecting segment; 14. Pivot axis; H11. Upper mounting hole; H12. Lower mounting hole;

[0030] 20. Brush holder; 21. Clamping seat; H3. Hinge hole; C. Slide groove; H21. Upper clamping hole; H22. Lower clamping hole; 22. Brush head; 221. Hinge boss;

[0031] 31. First clamping structure; 32. Second clamping structure; 301. Upper clamping column; 302. Lower clamping column; 303. Upper spring; 304. Lower spring. DETAILED DESCRIPTION

[0032] In the description of this application, features qualified by "first" or "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features. Features qualified by "first" or "second" may explicitly or implicitly include at least one of the qualified features. If the term "plurality" appears in the description, it generally means at least two, such as two or three, unless otherwise specifically qualified.

[0033] In this application, unless otherwise specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integration; mechanical connections, electrical connections, direct connections, or indirect connections through an intermediary; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0034] In the description of this specification, if the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" appear, it means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0035] It should be noted that in the description of this application, the "length direction" is also the left-right direction, the "width direction" is also the front-back direction, and the "thickness direction" is also the up-down direction. These directional terms are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0036] Figure 1 Schematic diagram of a toothbrush 100 according to one embodiment of the present application. Figure 1The toothbrush 100 comprises a clamping mechanism 10 and a brush holder 20.

[0037] The clamping mechanism 10 is provided with a first clamping structure 31 and a second clamping structure 32, both of which are arranged on the same side of the clamping mechanism 10 in the length direction and are spaced apart in the width direction.

[0038] The first clamping structure 31 and the second clamping structure 32 are respectively clamped with the brush holder 20, and the brush holders 20 at the two clamping structures are arranged in relative spacing in the width direction, and the brush holders 20 on the two sides are arranged to be capable of approaching or moving away from each other under the action of the clamping mechanism 10.

[0039] In this embodiment, the toothbrush 100 at least has the clamping mechanism 10 and the brush holder 20, the clamping mechanism 10 is provided with the first clamping structure 31 and the second clamping structure 32 for fixedly mounting the brush holder 20, the first clamping structure 31 and the second clamping structure 32 are arranged on the same side of the clamping mechanism 10 in the length direction and are spaced apart in the width direction, so that the brush holders 20 mounted on the first clamping structure 31 and the second clamping structure 32 are aligned in the length direction and are arranged in relative spacing in the width direction.

[0040] The clamping mechanism 10 can drive the first clamping structure 31 and the second clamping structure 32 to move away from or approach each other in the width direction, thereby driving the brush holders 20 on the two sides to move away from or approach each other.

[0041] In specific applications, the brush holder 20 can be used for cleaning the interdental space, and the operator can move the brush holders 20 on the two sides away from each other through the clamping mechanism 10, then move the brush holders 20 on the two sides to the front and back sides of the interdental space to be cleaned, and then move the brush holders 20 on the two sides to each other, so that the brush holders 20 on the two sides respectively abut the front and back sides of the interdental space, to simultaneously clean the front and back sides of the interdental space.

[0042] Figure 2 For Figure 1 The partial exploded view of the toothbrush 100. Please refer to Figure 2 In some optional embodiments, the clamping mechanism 10 comprises a first rod member 11, a second rod member 12 and an elastic member 13. The first rod member 11 and the second rod member 12 are hinged and spaced apart in the width direction, and the elastic member 13 is clamped between the first rod member 11 and the second rod member 12.

[0043] The same side ends of the first rod member 11 and the second rod member 12 in the length direction are clamping ends, the first clamping structure 31 is arranged at the clamping end of the first rod member 11, and the second clamping structure 32 is arranged at the clamping end of the second rod member 12.

[0044] In this embodiment, the clamping mechanism 10 comprises at least a first rod 11, a second rod 12, and an elastic member 13. The first rod 11 and the second rod 12 are hingedly connected, i.e., they can rotate relative to each other. The ends of the first and second rods 11, 12 on the same side in the longitudinal direction serve as clamping ends. A first clamping structure 31 is provided at the clamping end of the first rod 11, and a second clamping structure 32 is provided at the clamping end of the second rod 12.

[0045] Since the first rod 11 and the second rod 12 are spaced apart in the width direction, the first clamping structure 31 and the second clamping structure 32 are also spaced apart in the width direction, so that the two brush holders 20 respectively fixedly mounted on the first clamping structure 31 and the second clamping structure 32 can be relatively spaced apart in the width direction.

[0046] In addition, an elastic member 13 is provided between the first rod 11 and the second rod 12. During the interdental cleaning process, the elastic member 13 can provide a certain pre-pressure to the brush holders 20 on both sides to ensure the interdental cleaning effect.

[0047] exist Figure 2 In the illustrated embodiment, the narrow ends of the first rod 11 and the second rod 12 in the longitudinal direction are the clamping ends, where the narrow end refers to the end with the smaller cross-sectional size between the two ends in the longitudinal direction.

[0048] Figure 3 for Figure 2 Exploded view of the brush holder 20 in FIG. Figure 3 In some optional embodiments, the brush holder 20 includes a holder 21 and a brush head 22. The holder 21 is configured to slide along the length direction and be clamped to the corresponding clamping structure. The brush head 22 is hinged to the holder 21 and can swing relative to the holder 21.

[0049] In this embodiment, the brush holder 20 comprises at least a holder 21 and a brush head 22 . The brush head 22 is hinged to the holder 21 , so that the brush head 22 can swing relative to the holder 21 . The holder 21 is used to cooperate with a corresponding clamping structure.

[0050] It should be noted that the relative spacing of the brush holders 20 on both sides mentioned above means that the brush heads 22 therein face each other and have a gap therebetween, and the gap is set to be smaller than the thickness of the teeth. During the process of cleaning the gaps between teeth, the elastic member 13 can maintain a compressed state to ensure that the brush head 22 provides a certain pre-pressure on the teeth.

[0051] In addition, since the brush head 22 can swing relative to the holder 21, that is, the brush head 22 has a certain degree of freedom of movement, the brush head 22 can swing during the cleaning process to improve the cleaning effect.

[0052] exist Figure 3In the shown embodiment, the brush head 22 is provided with a hinged boss 221, and the card holder 21 is provided with a hinged hole H3, which are matched to realize hinging. In addition, the card holder 21 is provided with a sliding groove C, through which the card holder 21 can be slid along the length direction into the clamping end of the corresponding rod member to realize cooperation with the corresponding clamping structure.

[0053] In a further optional embodiment, the brush head 22 is arranged to be able to swing relative to the brush head 22 and the card holder 21 on both sides in the length direction of the hinged position.

[0054] In the present embodiment, the hinged position of the brush head 22 and the card holder 21 forms a swing connection point, and the brush head 22 swings relative to the swing connection point on both sides in the length direction, i.e. swings to the left and right relative to the swing connection point.

[0055] In a further optional embodiment, the maximum swing angle of the brush head 22 on one side is 10° to 50°. In the present embodiment, the maximum swing angle of the brush head 22 to the left or right relative to the swing connection point is 10° to 50°.

[0056] Exemplarily, the maximum swing angle of the brush head 22 on one side is 10°, 15°, 20°, 25°, 30°, 35°, 40°, 45°, 50°. Preferably, the maximum swing angle of the brush head 22 on one side is 30°, i.e. the brush head 22 allows a swingable angle of 60°, the corresponding angle when the brush head 22 does not swing is 0°, and the maximum swing angle of the brush head 22 to the left or right is 30°.

[0057] Figure 4 For Figure 2 A local enlarged view at S. Figure 5 A local sectional view of the position of the clamping structure. Please refer to Figure 4 and Figure 5 In some optional embodiments, the clamping end is provided with an upper mounting hole H11 and a lower mounting hole H12, which are on opposite sides in the up-down direction of the clamping end.

[0058] The first clamping structure 31 and the second clamping structure 32 are the same and each include an upper clamping column 301, a lower clamping column 302, an upper spring 303, and a lower spring 304.

[0059] The upper spring 303 is accommodated in the upper mounting hole H11, one end of the upper clamping column 301 is located in the upper mounting hole H11 and abuts against the upper spring 303, and the other end of the upper clamping column 301 extends out of the upper mounting hole H11.

[0060] The lower spring 304 is received in the lower mounting hole H12 . One end of the lower clamping post 302 is located in the lower mounting hole H12 and abuts against the lower spring 304 . The other end of the lower clamping post 302 extends out of the lower mounting hole H12 .

[0061] The brush holder 20 defines an upper engaging hole H21 and a lower engaging hole H22 . The upper engaging hole H21 is adapted to engage with the protruding portion of the upper engaging post 301 , and the lower engaging hole H22 is adapted to engage with the protruding portion of the lower engaging post 302 .

[0062] In this embodiment, the first and second engaging structures 31 and 32 have the same structure, each comprising an upper engaging post 301, a lower engaging post 302, an upper spring 303, and a lower spring 304. Portions of the upper and lower engaging posts 301 and 302 are respectively received in the mounting holes on the upper and lower sides of the engaging end.

[0063] Specifically, the bottom end of the upper clamping post 301 is received within the upper clamping hole H21, and the upper spring 303 is received within the upper clamping hole H21, with both ends of the upper spring 303 respectively abutting the bottom wall of the upper clamping hole H21 and the upper clamping post 301. Similarly, the bottom end of the lower clamping post 302 is received within the lower clamping hole H22, and the lower spring 304 is received within the lower clamping hole H22, with both ends of the lower spring 304 respectively abutting the bottom wall of the lower clamping hole H22 and the lower clamping post 302.

[0064] It should be understood that the upper and lower clamping posts 301, 302 are capable of retracting and extending, and that the upper clamping post 301 is maintained in an extended state by the action of the upper spring 303, while the lower clamping post 302 is maintained in an extended state by the action of the lower spring 304. Thus, the upper and lower clamping posts 301, 302 remain in an extended state without being subjected to pressure, enabling them to engage with the upper and lower clamping holes H21 and H22 in the brush holder 20, thereby achieving clamping engagement with the brush holder 20.

[0065] Accordingly, applying pressure to the upper and lower clamping posts 301, 302 retracts the upper and lower clamping posts 301, 302 to disengage from the upper and lower clamping holes H21, H22, and thereby removes the brush holder 20. In other words, the brush holder 20 is detachably connected to the clamping mechanism 10 via the clamping structure.

[0066] Figure 6 Schematic diagram of a toothbrush 100 provided according to another embodiment of the present application. Figure 7 FIG is a schematic diagram of a toothbrush 100 according to another embodiment of the present application. Figure 6 and Figure 7 ,exist Figure 6 and Figure 7 In the embodiment shown, the brush holder 20 and Figure 1 In the embodiment shown, the brush holder 20 has different specifications.Figure 1 The brush holder 20 shown is mainly used for cleaning the gaps between teeth. Figure 6 and Figure 7 The brush holder 20 shown is mainly used for cleaning tooth surfaces.

[0067] It can be understood that since the brush holder 20 and the clamping mechanism 10 are detachably connected via the snap-fit ​​structure, the brush holder 20 of different specifications can be quickly replaced to meet different functional requirements.

[0068] See also Figure 6 In some optional embodiments, the first rod 11 is provided with a first ear plate 111 , and the second rod 12 is provided with a second ear plate 121 .

[0069] The clamping mechanism 10 includes a pivot shaft 14 . The first ear plate 111 and the second ear plate 121 extend toward each other and are hingedly connected by the pivot shaft 14 . The elastic member 13 is spaced away from the clamping end relative to the pivot shaft 14 .

[0070] In this embodiment, the clamping mechanism 10 further has a pivot shaft 14, and the first rod 11 and the second rod 12 respectively have a first ear plate 111 and a second ear plate 121 extending toward each other. The pivot shaft 14 is passed through the first ear plate 111 and the second ear plate 121, thereby realizing the hinge connection between the first rod 11 and the second rod 12.

[0071] The elastic member 13 is away from the clamping end relative to the pivot shaft 14 , that is, the elastic member 13 is away from the brush holder 20 , that is, it can be away from the oral cavity, and the elastic member 13 is prevented from being too close to the oral cavity.

[0072] In a further optional embodiment, the length of the first rod 11 is shorter than that of the second rod 12 , and a lever notch D is formed at one end of the first rod 11 away from the clamping end.

[0073] A grip section 122 is formed on a side of the second rod 12 away from the clamping end in the length direction. The grip section 122 protrudes from the first rod 11 in the length direction.

[0074] In this embodiment, the second rod 12 is longer than the first rod 11, and the extended portion of the second rod 12 corresponds to the grip section 122. During use, the palm of the hand can be grasped at the grip section 122. To adjust the distance between the brush holders 20 on both sides, a finger (such as the index finger) can be placed at the position of the lever notch D to apply pressure to the first rod 11, thereby adjusting the distance between the brush holders 20 on both sides.

[0075] In a further optional embodiment, the grip section 122 is configured to be detachably connected. In this embodiment, the grip section 122 is detachably connected, so different forms of the grip section 122 can be used according to usage requirements. Figure 6 In the embodiment shown, a straight handle type grip section 122 is used.Figure 7 In the illustrated embodiment, a curved handle type grip section 122 is employed.

[0076] In addition, the grip section 122 can be detachably connected by screw connection. One end of the grip section 122 is a screw connection end and a screw extends out to achieve the screw connection.

[0077] In a further optional embodiment, the elastic member 13 is an elastic sheet and includes a bent segment 131 , a first connecting segment 132 and a second connecting segment 133 .

[0078] The bent segment 131 is V-shaped, and the first connecting segment 132 and the second connecting segment 133 are connected to the first rod 11 and the second rod 12 respectively.

[0079] In this embodiment, the elastic member 13 is a bent elastic sheet, specifically comprising a bent segment 131, a first connecting segment 132, and a second connecting segment 133. The bent segment 131 is V-shaped and can be compressed and reset. The first connecting segment 132 is used to connect to the first rod 11, and the second connecting segment 133 is used to connect to the second rod 12.

[0080] When a force is applied to the clamping mechanism 10, the bent segment 131 is compressed. When the force applied to the clamping mechanism 10 is released, the elastic member 13 returns to its original position. The elastic member 13 provides an appropriate force to ensure a suitable preload. Of course, the elastic member 13 is not limited to an elastic sheet and can also be a torsion spring, etc., and can be adjusted according to needs.

[0081] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A toothbrush, characterized in that: It comprises a clamping mechanism (10) and a brush holder (20); The clamping mechanism (10) is provided with a first clamping structure (31) and a second clamping structure (32), wherein the first clamping structure (31) and the second clamping structure (32) are both located on the same side in the length direction of the clamping mechanism (10) and are spaced apart in the width direction of the clamping mechanism (10); The first clamping structure (31) and the second clamping structure (32) are respectively clamped with the brush holder (20); the brush holders (20) at the two clamping structures are arranged at a relative interval in the width direction; the brush holders (20) on both sides are arranged to be able to approach or move away from each other under the action of the clamping mechanism (10).

2. The toothbrush according to claim 1, wherein The brush holder (20) comprises a clamping seat (21) and a brush head (22); the clamping seat (21) is configured to slide along the length direction and be clamped to a corresponding clamping structure; the brush head (22) is hinged to the clamping seat (21) and can swing relative to the clamping seat (21).

3. The toothbrush according to claim 2, characterized in that The brush head (22) is configured to be able to swing on both sides in the length direction relative to the hinge point between the brush head (22) and the holder (21).

4. The toothbrush according to claim 3, wherein The maximum single-side swing angle of the brush head (22) is 10° to 50°.

5. The toothbrush according to claim 1, wherein The clamping mechanism (10) comprises a first rod (11), a second rod (12) and an elastic member (13); The first rod (11) and the second rod (12) are hinged and spaced apart in the width direction, and the elastic member (13) is clamped between the first rod (11) and the second rod (12); The same-side ends of the first rod (11) and the second rod (12) in the length direction are both clamping ends, the first clamping structure (31) is arranged at the clamping end of the first rod (11), and the second rod (12) is arranged at the clamping end of the second rod (12).

6. The toothbrush according to claim 5, characterized in that The clamping end is provided with an upper mounting hole (H11) and a lower mounting hole (H12), and the upper mounting hole (H11) and the lower mounting hole (H12) are located on opposite sides of the clamping end in the up and down directions; The first clamping structure (31) and the second clamping structure (32) are identical and both comprise an upper clamping column (301), a lower clamping column (302), an upper spring (303) and a lower spring (304); The upper spring (303) is accommodated in the upper mounting hole (H11), one end of the upper clamping column (301) is located in the upper mounting hole (H11) and abuts against the upper spring (303), and the other end of the upper clamping column (301) extends out of the upper mounting hole (H11); The lower spring (304) is received in the lower mounting hole (H12), one end of the lower clamping column (302) is located in the lower mounting hole (H12) and abuts against the lower spring (304), and the other end of the lower clamping column (302) extends out of the lower mounting hole (H12); The brush holder (20) is provided with an upper clamping hole (H21) and a lower clamping hole (H22); the upper clamping hole (H21) is used to match the protruding portion of the upper clamping column (301); and the lower clamping hole (H22) is used to match the protruding portion of the lower clamping column (302).

7. The toothbrush according to claim 5, characterized in that The first rod (11) is provided with a first ear plate (111), and the second rod (12) is provided with a second ear plate (121); The clamping mechanism (10) includes a pivot shaft (14), the first ear plate (111) and the second ear plate (121) extend toward each other and are hinged through the pivot shaft (14), and the elastic member (13) is away from the clamping end relative to the pivot shaft (14).

8. The toothbrush according to claim 5, characterized in that The length of the first rod (11) is shorter than that of the second rod (12), and a lever notch (D) is formed at one end of the first rod (11) away from the clamping end; The second rod (12) is formed with a grip section (122) on a side away from the clamping end in the length direction, and the grip section (122) protrudes from the first rod (11) in the length direction.

9. The toothbrush according to claim 8, characterized in that The grip section (122) is configured to be detachably spliced.

10. The toothbrush according to any one of claims 5 to 9, characterized in that The elastic member (13) is an elastic sheet and includes a bent segment (131), a first connecting segment (132) and a second connecting segment (133); The bent segment (131) is V-shaped, and the first connecting segment (132) and the second connecting segment (133) are respectively connected to the first rod (11) and the second rod (12).

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