Oral cavity cleaning brush head

Abstract

In order to solve the technical problem that an existing electric toothbrush cannot achieve reciprocating type mechanical movement to clean the oral cavity of a user, the embodiment of the utility model provides an oral cavity cleaning brush head which comprises a brush table base, a rotating shaft, a brush rod, a brush rod and a brush rod, the moving assembly is connected with the rotating shaft on the brush table base; and the brushing table is connected with the moving assembly and movably connected with the brushing table base, and the brushing table can reciprocate relative to the brushing table base. According to the oral cavity cleaning brush head, the movement assembly connected with the rotating shaft and the brush table is arranged, the rotating movement of the rotating shaft is converted into the reciprocating movement of the brush table relative to the brush table base, and therefore automatic reciprocating type mechanical movement of bristles of an electric toothbrush can be achieved so as to clean the oral cavity of a user.

Description

Technical Field

[0001] The utility model relates to the technical field of oral cleaning, in particular to an oral cleaning brush head. Background Art

[0002] With technological advancements and the continuous improvement of people's living standards, electric toothbrushes have emerged. Electric toothbrushes generally consist of a motor, a transmission structure, and a brush head. The motor can be a rotary or vibrating motor, providing torque or vibration to the transmission structure, which transmits this torque or vibration to the brush head; the brush head then rotates or vibrates accordingly. Consequently, the brush head can drive the bristles to perform rotational or vibratory cleaning of the user's teeth. However, existing electric toothbrushes are limited to these rotational or vibratory cleaning modes, neglecting the reciprocating mechanical motion of the brush head and bristles used by traditional toothbrushes to clean the mouth. Therefore, traditional electric toothbrushes have limited oral cleaning options. Users must repeatedly push and pull the electric toothbrush with their arms, just like with traditional toothbrushes, to achieve the reciprocating mechanical motion of the bristles and thus clean their mouth. In summary, existing electric toothbrushes cannot automatically achieve this reciprocating mechanical motion of the bristles, causing inconvenience to users when using electric toothbrushes. Utility Model Content

[0003] In order to solve the technical problem that existing electric toothbrushes cannot achieve automatic reciprocating mechanical motion to clean the user's mouth, an embodiment of the present utility model provides an oral cleaning brush head. The oral cleaning brush head converts the rotational motion of the rotating shaft into reciprocating motion of the brush table relative to the brush table base by setting the motion component connecting the rotating shaft and the brush table, so that the bristles of the electric toothbrush can achieve automatic reciprocating mechanical motion to clean the user's mouth.

[0004] An oral cleaning brush head provided by an embodiment of the present invention includes: a brush stand base, a rotating shaft, one end of which is provided on the brush stand base and can rotate relative to the brush stand base; a motion component, connected to the rotating shaft at the brush stand base; a brush stand, connected to the motion component and movably connected to the brush stand base, and the brush stand can reciprocate relative to the brush stand base.

[0005] In one embodiment of the present invention, the motion assembly includes: a rotation changing mechanism connected to the rotating shaft and connected to the brush table.

[0006] In one embodiment of the present invention, the rotation direction changing mechanism further includes a staggered axis gear, and the axis of the staggered axis gear intersects with the axis of the rotating shaft.

[0007] In one embodiment of the present invention, the motion assembly includes a rotational translational displacement structure, which is rotationally connected to the rotating shaft and connected to the brush table.

[0008] In one embodiment of the present invention, the rotation-translation replacement structure includes an eccentric gear, which is rotationally connected to the rotating shaft and connected to the brush table.

[0009] In one embodiment of the present invention, an eccentric table is provided on the eccentric gear; an eccentric table mounting structure is formed on one side of the brush table connected to the eccentric gear, and the eccentric table is movably connected to the eccentric table mounting structure.

[0010] In one embodiment of the present invention, the eccentric platform mounting structure is an eccentric platform mounting groove, and the eccentric platform is movably connected in the eccentric platform mounting groove.

[0011] In one embodiment of the present invention, the eccentric table mounting groove is an elliptical groove, the eccentric table is a circular table, the diameter of the eccentric table is equal to or less than the short axis length of the eccentric table mounting groove, and the moving diameter of the eccentric table is greater than the short axis length of the eccentric table mounting groove and is equal to or less than the long axis length of the eccentric table mounting groove.

[0012] In one embodiment of the present invention, an eccentric cavity is formed on the side of the eccentric gear connected to the brush table, a protrusion is formed on the side of the brush table connected to the eccentric gear, and the protrusion is connected to the eccentric gear in the eccentric cavity.

[0013] In one embodiment of the present invention, the oral cleaning brush head also includes a limiting member; the brush base is provided with a limiting connection hole; the eccentric gear is provided with a connection hole, the limiting member penetrates the limiting connection hole and the connection hole, and is connected to the brush base.

[0014] In one embodiment of the present invention, the limiting member is provided with a fluid discharge port on one side of the brush table, and the rotating shaft is provided with a fluid channel, which is connected to the fluid discharge port.

[0015] In one embodiment of the present invention, the oral cleaning brush head also includes a connecting member and a sealing structure, the connecting member is connected to the limiting member, and the rotating shaft is rotatably connected to the connecting member, the limiting member is provided with a fluid discharge cavity, the fluid discharge cavity is connected to the fluid discharge port, and the fluid discharge cavity and the fluid channel are connected to the connecting member; the sealing structure is arranged at the connection between the connecting member and the limiting member, and / or the sealing structure is arranged at the connection between the connecting member and the rotating shaft.

[0016] In one embodiment of the present invention, the position-limiting connection hole has a long side, and the long side is arranged along the reciprocating motion direction of the brush table relative to the brush table base.

[0017] In one embodiment of the present invention, the brush table reciprocates relative to the brush table base along the cleaning direction; the brush table base has a first limiting structure, and the brush table has a second limiting structure, which is movably connected to the first limiting structure along the cleaning direction.

[0018] In one embodiment of the present invention, one of the first limiting structure and the second limiting structure is a slide groove, and the other is a protrusion. The protrusion is embedded in the slide groove, and the protrusion can reciprocate relative to the slide groove along the cleaning direction.

[0019] The above technical solution provided by the utility model has at least the following beneficial effects:

[0020] The oral cleaning brush head converts the rotational motion of the rotating shaft into the reciprocating motion of the brush base relative to the brush base by providing the motion component connecting the rotating shaft and the brush base; therefore, when the user installs the oral cleaning brush head on the electric toothbrush body including a rotating motor, the oral cleaning brush head can be used to clean the oral cavity through automatic mechanical reciprocating motion without the user having to manually push and pull the oral cleaning brush head; therefore, the oral cleaning brush head provided in the embodiment of the present invention can enable the electric toothbrush to achieve automatic reciprocating mechanical motion, thereby reducing the burden on the user and optimizing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A schematic diagram of the three-dimensional structure of an oral cleaning brush head provided in an embodiment of the present utility model.

[0023] Figure 2 for Figure 1 The three-dimensional structural diagram of the oral cleaning brush head in another state is shown.

[0024] Figure 3 for Figure 2 Schematic diagram of the exploded structure of the brush table and brush table base shown.

[0025] Figure 4 for Figure 2Schematic diagram of the exploded structure of the oral cleaning brush head shown.

[0026] Figure 5 for Figure 2 Another exploded structural diagram of the brush table and brush table base is shown.

[0027] Figure 6 for Figure 5 Eccentric table mounting slots and Figure 4 The schematic diagram of the structural dimensions of the eccentric table is shown.

[0028] Figure 7a for Figure 1 The cross-sectional structure diagram of the oral cleaning brush head is shown.

[0029] Figure 7b for Figure 7a The schematic diagram of the local enlarged structure of the brush station is shown.

[0030] Figure 8 for Figure 1 The diagram shows a partially enlarged structural diagram of an oral cleaning brush head.

[0031] Figure 9 for Figure 5 The brush table and brush table base are shown as a schematic diagram of the exploded structure from another perspective.

[0032] Figure 10 for Figure 2 The diagram shows a partially enlarged cross-sectional structure diagram of an oral cleaning brush head. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] It should be noted that the terms "first", "second" and "one end" in the specification and claims of the present invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or that are inherent to these processes, products or devices.

[0035] See also Figures 1 to 4 The embodiment of the present utility model discloses an oral cleaning brush head 10. The oral cleaning brush head 10 includes: a brush base 12, a rotating shaft 14, a motion component 16 and a brush base 18. One end of the rotating shaft 14 is provided on the brush base 12 and can rotate relative to the brush base 12. The motion component 16 is connected to the rotating shaft 14 on the brush base 12. The brush base 18 is connected to the motion component 16 and is movably connected to the brush base 12. The brush base 18 can reciprocate relative to the brush base 12.

[0036] The oral cleaning brush head 10 provided by the present invention is provided with the motion assembly 16 connecting the rotating shaft 14 and the brush base 18, thereby converting the rotational motion of the rotating shaft 14 into the reciprocating motion of the brush base 18 relative to the brush base 12. Therefore, when the user installs the oral cleaning brush head 10 on the main body of an electric toothbrush including a rotary motor, the oral cleaning brush head 10 can be used to clean the oral cavity through automatic mechanical reciprocating motion, without the user having to manually push or pull the oral cleaning brush head 10. Therefore, the oral cleaning brush head 10 provided by the embodiment of the present invention can enable the electric toothbrush to achieve automatic reciprocating mechanical motion, thereby reducing the burden on the user and optimizing the user experience.

[0037] Specifically, one side of the brush station 18, such as Figure 1 and Figure 2 The motion assembly 16, see Figure 3 and Figure 4 The reciprocating motion of the brush table 18 relative to the brush table base 12 is a mechanical reciprocating motion, for example, the brush table 18 reciprocates along a single straight line relative to the brush table base 12; or the brush table 18 may perform periodic translation relative to a point on the brush table base 12, wherein the motion trajectory of the brush table 18 may be a closed trajectory such as an ellipse or a circle.

[0038] Further, see Figure 3 and Figure 4 The motion assembly 16 includes a rotation direction changing mechanism. The rotation direction changing mechanism is connected to the rotating shaft 14 and the brush table 18. The rotation direction changing mechanism is used to rotate along with the rotating shaft 14 and rotate in different directions.

[0039] Further, see Figure 3 and Figure 4 , the rotation changing mechanism also includes a staggered axis gear. The axis of the staggered axis gear intersects with the axis of the rotating shaft 14. The rotation direction of the staggered axis gear is different from that of the rotating shaft 14. For example, the axis of the staggered axis gear is perpendicular to the axis of the rotating shaft 14. However, this embodiment does not limit the specific angle of intersection between the axis of the staggered axis gear and the axis of the rotating shaft 14. The staggered axis gear only needs to be driven by the rotating shaft 14 and rotate in a direction different from that of the rotating shaft 14. Specifically, the rotation changing mechanism can be composed of a single staggered axis gear, or composed of a plurality of staggered axis gears of different sizes or rotation directions.

[0040] Furthermore, the motion assembly 16 includes a rotation-translation displacement structure. The rotation-translation displacement structure is rotatably connected to the rotating shaft 14 and to the brush table 18. The rotation-translation displacement structure can displace the rotational motion of the rotating shaft 14 into the translational motion of another component. For example, the translation displacement structure is connected to the rotational direction-changing mechanism and is connected to the rotating shaft 14 via the rotational direction-changing mechanism.

[0041] Furthermore, the rotation-translation displacement structure includes an eccentric gear 162. The eccentric gear 162 is rotationally connected to the rotating shaft 14 and is connected to the brush table 18. Therefore, in one embodiment of this invention, the staggered axis gear and the eccentric gear 162 are the same gear structure. Therefore, in this example, the rotation direction changing mechanism and the rotation-translation displacement structure can be composed of different components or formed of the same structure.

[0042] Further, see Figure 4 , the eccentric gear 162 is provided with an eccentric platform 164; and see Figure 5An eccentric mounting structure is formed on one side of the brush table 18 connected to the eccentric gear 162, and the eccentric table 164 is movably connected to the eccentric mounting structure. As a result, the eccentric gear 162 is driven by the rotating shaft 14 and rotates. Because the center of the eccentric table 164 is different from the rotation center of the eccentric gear 162, the eccentric table 164 can perform reciprocating mechanical motion in a certain direction or periodic motion along a closed trajectory. When the eccentric table 164 is connected to the brush table 18 via the eccentric mounting structure, the brush table 18 can reciprocate under the drive of the eccentric table 164.

[0043] Further, see Figure 5 The eccentric platform mounting structure is an eccentric platform mounting groove 186 , and the eccentric platform 164 is movably connected in the eccentric platform mounting groove 186 .

[0044] After the eccentric table 164 is connected to the brush table 18 through the eccentric table mounting groove 186, since the eccentric table 164 will perform reciprocating motion (or periodic motion) driven by the eccentric gear 162, the side wall of the eccentric table 164 will abut and push the side wall of the eccentric table mounting groove 186, thereby causing the brush table 18 to reciprocate relative to the brush table base 12 under the drive of the eccentric table 164. Therefore, the trajectory of the reciprocating motion of the brush table 18 relative to the brush table base 12 depends on the shape of the eccentric table 164 and the eccentric table mounting groove 186. Therefore, there are many shapes of the eccentric table mounting groove 186. In addition, the eccentric table mounting structure is not limited to a slot body, and can also be a hole structure, etc.

[0045] Specifically, see Figure 5 and Figure 6 The eccentric platform mounting groove 186 is an elliptical groove. Alternatively, the eccentric platform mounting groove 186 may be, for example, an L-shaped groove. Alternatively, the eccentric platform mounting groove 186 may be, for example, a cross-shaped groove. Still further, the eccentric platform mounting groove 186 may be, for example, a circular groove, the eccentric platform 164 is a frustum, and the eccentric platform 164 is embedded in the eccentric platform mounting groove 186.

[0046] Further, see Figure 6The eccentric table mounting groove 186 is an elliptical groove, the eccentric table 164 is a circular table, the diameter R of the eccentric table 164 is equal to the minor axis length R1 of the eccentric table mounting groove 186, and the movement diameter of the eccentric table 164 is equal to the major axis length R2 of the eccentric table mounting groove 186. In this case, when the eccentric table 164 rotates along with the eccentric gear 162, the movement trajectory of any point on it is a circle. However, since the eccentric table mounting groove 186 is an elliptical groove, and the minor axis length R1 of the elliptical groove is equal to the diameter of the eccentric table 164, the eccentric table 164 cannot move relative to the elliptical groove in the direction of the minor axis length R1, but can only push the side wall of the elliptical groove in the direction of the minor axis length R1, thereby pushing the brush table 18 to reciprocate relative to the brush table base 12 along the cleaning direction X; and at this time, the cleaning direction X is the same direction as the direction of the minor axis length R1.

[0047] Since the eccentric table 164 performs a circular motion, the eccentric table 164 will also Figure 6 The eccentric table 164 reciprocates in the left-right direction on the plane shown. The movement diameter of the eccentric table 164 refers to the movement distance along the major axis length R2 of the farthest point of the eccentric table 164 relative to the rotation center of the eccentric gear 162. Therefore, when the major axis length R2 is equal to the movement diameter of the eccentric table 164, the eccentric table mounting groove 186 can just allow the eccentric table 164 to reciprocate in the left-right direction therein, so the brush table 18 will not reciprocate in the left-right direction relative to the brush table base 12.

[0048] It can be seen from the above-mentioned coordinated movement mode of the eccentric table 164 and the eccentric table mounting groove 186 that when the diameter R of the eccentric table 164 is smaller than the short axis length R1, and the movement diameter of the eccentric table 164 is larger than the short axis length R1 and smaller than the long axis length R2, the eccentric table 164 can still push the brush table 18 to reciprocate relative to the brush table base 12 along the direction of the short axis length R1, and can avoid the brush table 18 from reciprocating relative to the brush table base 12 along the left and right direction or the direction of the long axis length R2.

[0049] Referring to the above, when the eccentric table mounting groove 186 is an elliptical groove and the eccentric table 164 is a circular table, when the eccentric table mounting groove 186 is an L-shaped groove or a cross-shaped groove, due to the different groove structures, the eccentric table 164 can drive the brush table 18 to perform circular or elliptical reciprocating motion. Its working principle is the same as that of the case where the eccentric table mounting groove 186 is an elliptical groove and the eccentric table 164 is a circular table, so it is not described here in detail.

[0050] Since the reciprocating motion of the brush table 18 relative to the brush table base 12 can be achieved by the eccentric table 164 pushing the side wall of the eccentric table mounting groove 186, when the eccentric table mounting groove 186 is a circular groove, the eccentric table 164 is a circular table, and the eccentric table 164 is embedded in the eccentric table mounting groove 186, the eccentric table 164 can push the brush table 18 to move with the eccentric table 164 at all times. For example, if the motion trajectory of the eccentric table 164 is a circle, the eccentric table 164 can drive the brush table 18 to perform circular motion.

[0051] In addition, the connection between the eccentric gear 162 and the brush table 18 can also be achieved by providing an eccentric cavity on the side of the eccentric gear 162 connected to the brush table 18, and forming a protrusion on the side of the brush table 18 connected to the eccentric gear 162, wherein the protrusion is connected to the eccentric gear 162 in the eccentric cavity. Specifically, the outer structure of the eccentric cavity and the protrusion, as well as their motion coordination, can be referred to the above-mentioned example of the coordinated motion of the eccentric table 164 and the eccentric table mounting groove 186.

[0052] Further, see Figure 7a and Figure 8 The oral cleaning brush head 10 also includes a limiting member 11. The brush base 18 is provided with a limiting connection hole 182; the eccentric gear 162 is provided with a connection hole 168. The limiting member 11 penetrates the limiting connection hole 182 and the connection hole 168 and connects to the brush base 12. The limiting member 11 can limit the position of the brush base 18 relative to the eccentric gear 162 and the position relative to the brush base 12, thereby preventing the brush base 18 from being separated from the brush base 12. Specifically, the limiting member 11 can be connected to the brush base 12 through a threaded structure, a clamping structure, or an embedded structure.

[0053] Further, see Figure 7a 、 Figure 7b and Figure 8 The limiting member 11 is provided with a fluid discharge port 114 on one side of the brush base 18, and the rotating shaft 14 is provided with a fluid channel 142, which is connected to the fluid discharge port 114. By providing the fluid discharge port 114 and the fluid channel 142, the oral cleaning brush head 10 can also have the function of jet or liquid cleaning. When the oral cleaning brush head 10 is connected to the main body of the electric toothbrush, and the main body of the electric toothbrush is equipped with a fluid pump and a guide channel, the fluid can be transferred to the fluid discharge port 114 through the fluid channel 142 in the rotating shaft 14 for discharge. Specifically, the limiting member 11 can also be provided with a guide cavity to connect the fluid discharge port 114 and the fluid channel 142.

[0054] Further, see Figure 4 、 Figure 7a and Figure 7b The oral cleaning brush head 10 further includes a connector 15 and a sealing structure 13. The connector 15 is connected to the limiting member 11, and the rotating shaft 14 is rotatably connected to the connector 15. The limiting member 11 is provided with a fluid discharge cavity 112, which is connected to the fluid discharge port 114. The fluid discharge cavity 112 and the fluid channel 142 are connected to the connector 15. The sealing structure 13 is provided at the connection between the connector 15 and the limiting member 11, and / or, the sealing structure 13 is provided at the connection between the connector 15 and the rotating shaft 14.

[0055] Since the limiting member 11 and the rotating shaft 14 are connected to each other through the connecting member 15, and both have a cavity for conveying liquid or other fluid, the connection between the limiting member 11 and the connecting member 15, and / or the connection between the rotating shaft 14 and the connecting member 15 are sealed by the sealing structure 13, thereby preventing leakage. Specifically, the sealing structure 13 may be, for example, a sealing ring. Said sealing ring is made of, for example, rubber, plastic or other materials. Specifically, for example, a cavity is provided in the connecting member 15, one end of the rotating shaft 14 extends into the cavity of the connecting member 15, and the limiting member 11 is also connected to the connecting member in the cavity, thereby, the fluid discharge cavity 112 and the fluid channel 142 can be connected through the cavity in the connecting member 15.

[0056] In addition, participate Figure 8 The limiting connection hole 182 has a long side 188, and the long side 188 is arranged along the reciprocating motion direction of the brush table 18 relative to the brush table base 12. Figure 8 In the structure shown, the brush table 18 reciprocates relative to the brush table base 12 along the cleaning direction X, and since the limit member 11 is connected to the brush table base 12, the limit member 11 will move relative to the brush table 18, so that the setting of the long side 188 allows the limit member 11 to move freely in the limit connection hole 182, thereby avoiding the limit member 11 from obstructing the movement of the brush table 18.

[0057] In addition, see Figure 9 and Figure 10, the brush table 18 reciprocates relative to the brush table base 12 along the cleaning direction X; the brush table base 12 has a first limiting structure, and the brush table 18 has a second limiting structure, and the second limiting structure is movably connected to the first limiting structure along the cleaning direction. By providing the first limiting structure and the second limiting structure, the brush table 18 can be confined to the brush table base 12, thereby preventing the brush table 18 from detaching from the brush table base 12. And because the movable connection direction of the first limiting structure and the second limiting structure is the cleaning direction X, the first limiting structure and the second limiting structure can also limit the movement direction of the brush table 18 relative to the brush table base 12.

[0058] Specifically, see Figure 9 and Figure 10 The first limiting structure is a chute 122, and the second limiting structure is a protrusion 184. The protrusion 184 is embedded in the chute 122 and can reciprocate relative to the brush table base 12 along the cleaning direction X. In addition, the first limiting structure can also be set as the protrusion 184, and the second limiting structure can be set as the chute 122 accordingly; or the first limiting structure and the second limiting structure can also be movably connected by a slide rail structure or the like.

[0059] In addition, it can be understood that the aforementioned embodiments are merely illustrative descriptions of the present invention. On the premise that the technical features do not conflict, are not inconsistent, and do not violate the purpose of the present invention, the technical solutions of the various embodiments can be arbitrarily combined and used in combination.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An oral cleaning brush head (10), characterized in that: include: Brush stand base (12), A rotating shaft (14), one end of which is disposed on the brush stand base (12) and can rotate relative to the brush stand base (12); A motion component (16) connected to the rotating shaft (14) on the brush table base (12); The brush table (18) is connected to the motion component (16) and is movably connected to the brush table base (12). The brush table (18) can reciprocate relative to the brush table base (12).

2. The oral cleaning brush head (10) according to claim 1, characterized in that: The motion assembly (16) comprises: The rotating direction-changing mechanism is connected to the rotating shaft (14) and the brush table (18).

3. The oral cleaning brush head (10) according to claim 2, characterized in that: The rotation direction changing mechanism also includes a staggered axis gear, the axis of which intersects with the axis of the rotating shaft (14).

4. The oral cleaning brush head (10) according to claim 1, characterized in that: The motion assembly (16) comprises a rotational translational displacement structure, which is rotationally connected to the rotating shaft (14) and connected to the brush table (18).

5. The oral cleaning brush head (10) according to claim 4, characterized in that: The rotational translational displacement structure comprises: The eccentric gear (162) is rotatably connected to the rotating shaft (14) and is connected to the brush stand (18).

6. The oral cleaning brush head (10) according to claim 5, characterized in that: An eccentric platform (164) is provided on the eccentric gear (162); an eccentric platform mounting structure is formed on one side of the brush platform (18) connected to the eccentric gear (162); and the eccentric platform (164) is movably connected to the eccentric platform mounting structure.

7. The oral cleaning brush head (10) according to claim 6, characterized in that: The eccentric platform mounting structure is an eccentric platform mounting groove (186), and the eccentric platform (164) is movably connected in the eccentric platform mounting groove (186).

8. The oral cleaning brush head (10) according to claim 7, characterized in that: The eccentric table mounting groove (186) is an elliptical groove, the eccentric table (164) is a circular table, the diameter of the eccentric table (164) is equal to or less than the short axis length of the eccentric table mounting groove (186), and the moving diameter of the eccentric table (164) is greater than the short axis length of the eccentric table mounting groove (186) and equal to or less than the long axis length of the eccentric table mounting groove (186).

9. The oral cleaning brush head (10) according to claim 5, characterized in that: An eccentric cavity is formed on one side of the eccentric gear (162) connected to the brush stand (18), and a protrusion is formed on one side of the brush stand (18) connected to the eccentric gear (162), wherein the protrusion is connected to the eccentric gear (162) in the eccentric cavity.

10. The oral cleaning brush head (10) according to claim 5, characterized in that: It also includes a limiting member (11); The brush table (18) is provided with a limited position connection hole (182); The eccentric gear (162) is provided with a connecting hole (168), and the limiting member (11) penetrates into the limiting connecting hole (182) and the connecting hole (168) and is connected to the brush stand base (12).

11. The oral cleaning brush head (10) according to claim 10, characterized in that: The limiting member (11) is provided with a fluid discharge port (114) on one side of the brush table (18), and the rotating shaft (14) is provided with a fluid channel (142), and the fluid channel (142) is connected to the fluid discharge port (114).

12. The oral cleaning brush head (10) according to claim 11, characterized in that: The invention also comprises a connecting member (15) and a sealing structure (13); the connecting member (15) is connected to the limiting member (11), and the rotating shaft (14) is rotatably connected to the connecting member (15); the limiting member (11) is provided with a fluid discharge cavity (112), the fluid discharge cavity (112) is connected to the fluid discharge port (114), and the fluid discharge cavity (112) and the fluid channel (142) are connected to the connecting member (15); the sealing structure (13) is arranged at the connection between the connecting member (15) and the limiting member (11), and / or the sealing structure (13) is arranged at the connection between the connecting member (15) and the rotating shaft (14).

13. The oral cleaning brush head (10) according to claim 10, characterized in that: The limiting connection hole (182) has a long side (188), and the long side (188) is arranged along the reciprocating motion direction of the brush table (18) relative to the brush table base (12).

14. The oral cleaning brush head (10) according to claim 1, characterized in that: The brush table (18) reciprocates relative to the brush table base (12) along the cleaning direction; the brush table base (12) has a first limiting structure, and the brush table (18) has a second limiting structure, and the second limiting structure is movably connected to the first limiting structure along the cleaning direction.

15. The oral cleaning brush head (10) according to claim 14, characterized in that: One of the first limiting structure and the second limiting structure is a slide groove (122), and the other is a protrusion (184); the protrusion (184) is embedded in the slide groove (122), and the protrusion (184) can reciprocate relative to the slide groove (122) along the cleaning direction.

Images