Tooth cleaner body assembly and tooth cleaner

Abstract

The invention discloses a dental scaler body assembly and a dental scaler. The dental scaler body assembly comprises a dental scaler main body, a first rotating body, a second rotating body and a cover body, the machine body is provided with a connecting hole and a connecting groove, a first shaft hole is formed in the bottom wall of the connecting groove, the connecting groove is communicated with the connecting hole and forms an opening, the first rotating body is rotatably arranged in the connecting hole, the driven gear part is meshed with the driving gear part so that rotation of the first rotating body can be transmitted to the second rotating body, and the second shaft part drives the tooth cleaning piece to rotate. The second shaft part of the second rotating body penetrates through the first shaft hole and is in clearance fit with the first shaft hole, and the tail end of the first shaft part is inserted into the second shaft hole of the cover body and is in clearance fit with the second shaft hole, so that the radial sizes of the first shaft hole, the second shaft hole, the first shaft part and the second shaft part can be far smaller than that of the connecting groove; therefore, the contact friction area between the second rotating body and the machine body can be reduced, and rotating heating and rotating noise of the second rotating body are reduced.

Description

Technical Field

[0001] This invention relates to the field of dental floss technology, and more particularly to the body components of a dental floss device and the dental floss device itself. Background Technology

[0002] Using a dental polisher to clean and polish the tooth surface can effectively prevent and treat dental diseases. It mainly consists of two parts: a tooth-protecting bend and a high-speed rotary actuator. The tooth-protecting bend includes a housing, a polishing component, and a rotating component. The high-speed rotary actuator drives the rotating component to rotate, and the transmission between the rotating component and the polishing component drives the polishing component to rotate. The rotating polishing component contacts the tooth surface to achieve the effect of cleaning and polishing teeth. However, the existing tooth polishing machine's tooth protection bend generally suffers from severe heat generation during operation. Referring to the tooth protection bend structure of the polishing machine in Chinese patent CN202120810065.8, the radial dimension of the intermediate column 23 of the polishing component 2 is matched with the radial dimension of the limiting groove 112 of the receiving cavity 111 of the outer shell 1. The friction area between the polishing component 2 and the outer shell 1 is large, which makes the polishing component 2 prone to heat generation and loud noise when rotating. Summary of the Invention

[0003] The purpose of this invention is to provide a body assembly for a dental flosser that reduces the frictional area between the second rotating body and the main body, thereby reducing the rotational heat and noise of the second rotating body.

[0004] Another object of the present invention is to provide a dental flosser in which the friction area between the second rotating body of the body assembly and the main body is small, which is beneficial to reducing the rotational heat and noise of the second rotating body.

[0005] To achieve the above objectives, the present invention discloses a body assembly for a dental flosser, comprising: The fuselage body, the first rotating body, the second rotating body, and the cover; The main body of the fuselage is provided with a connecting hole extending along its length direction. One end of the main body of the fuselage is provided with a connecting groove. The connecting groove communicates with the connecting hole and forms an opening on one side facing the main body of the fuselage. A first shaft hole extending outward is opened in the middle of the bottom wall of the connecting groove away from the opening. The first rotating body is rotatably disposed in the connecting hole, and a drive gear is provided at one end of the first rotating body facing the connecting groove; The second rotating body includes a limiting part, a first shaft part, a second shaft part, and a driven gear part. The first shaft part and the second shaft part extend outward from opposite ends of the limiting part. The limiting part, the first shaft part, and the driven gear part are disposed in the connecting groove. The limiting part abuts against the bottom wall of the connecting groove. The driven gear part meshes with the driving gear part to transmit the rotation of the first rotating body to the second rotating body after changing the direction of rotation. The second shaft part passes through the first shaft hole and is clearance-fitted with the first shaft hole. The end of the second shaft part away from the limiting part is used to connect to the dental cleaning component to drive the dental cleaning component to rotate. The cover is fixed to the opening, and the inner wall of the cover is provided with a second shaft hole. The end of the first shaft is inserted into the second shaft hole and is clearance-fitted with the second shaft hole.

[0006] Preferably, a threaded hole is formed inward at one end of the second shaft portion away from the limiting portion, and a threaded post is formed outward at one end of the dental cleaning component. The threaded post is threadedly connected to the threaded hole so that the dental cleaning component is connected to the second shaft portion.

[0007] Preferably, the cover includes a first cover portion and a second cover portion. The second cover portion extends from the middle of one end of the first cover portion and forms a second shaft hole inwardly toward the middle of one end of the connecting groove. The radial dimension of the opening is larger than the radial dimension of the connecting groove, so that a limiting surface is formed in the opening that is orthogonally connected to the inner sidewalls of the opening and the connecting groove, respectively. The second cover portion is adapted to be inserted into the end of the connecting groove away from the first shaft hole, and the edge of the first cover portion abuts against the limiting surface.

[0008] Preferably, the driven gear portion includes a plurality of driven teeth, which are spaced apart around the first shaft portion on the end face of the limiting portion facing the opening.

[0009] Preferably, the main body includes a handle and a housing. The handle includes a first part and a second part along its length. The first part has a mounting groove. The second part includes a base connected to the first part and a boss extending upward from the middle of the end of the base away from the first part. A first shoulder is formed between the boss and the base. The second part has a first mounting hole extending along the length of the handle and penetrating the base and the boss. One end of the first mounting hole communicates with the mounting groove. The housing has a second mounting hole and a connecting groove that extend outward in different directions and are interconnected. The boss is adapted to be inserted into the end of the second mounting hole away from the connecting groove. The end of the housing that defines the side wall of the second mounting hole is provided at the first shoulder. The mounting groove, the first mounting hole and the second mounting hole, which are connected sequentially along the length of the main body, form the connecting hole. The first rotating body includes a rotating shaft and a head. The rotating shaft extends from the middle of one end of the head. A second shoulder is formed between the head and the rotating shaft. The driving gear is formed at the end of the head away from the rotating shaft. The head is inserted into the end of the second mounting hole near the connecting groove and is in clearance fit with the second mounting hole. The end face of the second shoulder abuts against the end face of the boss. The rotating shaft passes through the first mounting hole and the mounting groove and is in clearance fit with the first mounting hole.

[0010] Preferably, the rotating shaft includes a first column and a second column, one end of the first column is connected to the end of the head away from the drive gear, and the other end is connected to the second column, wherein the radial dimension of the second column is smaller than the radial dimension of the first column.

[0011] Preferably, the axial dimension of the first mounting hole is larger than the axial dimension of the head.

[0012] Preferably, the end of the sidewall defining the second mounting hole of the housing is fixedly connected to the base by seam welding.

[0013] Preferably, the first part includes a gripping portion connected to the base, wherein the end of the gripping portion away from the base is provided with the mounting groove, and the radial dimension of the end is greater than the radial dimension of the base, and the outer sidewall of the end of the gripping portion connected to the base forms a transitional tapered surface.

[0014] To achieve the above objectives, the present invention discloses a dental flosser, as described above, including the body assembly of the dental flosser; A dental cleaning component, wherein the dental cleaning component is connected to the second rotating body; A drive component is connected to the first rotating body and is used to drive the first rotating body to rotate.

[0015] Compared with the prior art, the main body of the present invention is provided with a connecting hole and a connecting groove. The bottom wall of the connecting groove has a first shaft hole that extends outward. The connecting groove communicates with the connecting hole and forms an opening. A first rotating body is rotatably disposed in the connecting hole. The limiting part, the first shaft part, and the driven gear part of the second rotating body are disposed in the connecting groove. The driven gear part of the second rotating body meshes with the driving gear part of the first rotating body so that the rotation of the first rotating body is transmitted to the second rotating body. The second shaft part of the second rotating body is connected to the dental cleaning device to drive the dental cleaning device to rotate. The second shaft part of the second rotating body passes through the first shaft hole and is clearance-fitted with the first shaft hole. The end of the first shaft part of the second rotating body is inserted into the second shaft hole of the cover fixed at the opening and is clearance-fitted with the second shaft hole. This structure allows the radial dimensions of the first shaft hole, the second shaft hole, the first shaft part, and the second shaft part to be much smaller than the connecting groove, thereby reducing the friction area between the second rotating body and the main body, and reducing the rotational heat and rotational noise of the second rotating body. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the body assembly of the dental flosser according to an embodiment of the present invention.

[0017] Figure 2 This is an exploded structural diagram of the body assembly of the dental flosser according to an embodiment of the present invention.

[0018] Figure 3 for Figure 2 A three-dimensional structural diagram from another perspective.

[0019] Figure 4 This is a cross-sectional structural diagram of the body assembly of the dental flosser according to an embodiment of the present invention. Detailed Implementation

[0020] To illustrate the technical content, structural features, objectives, and effects of the present invention in detail, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0021] See also Figures 1 to 4 This invention discloses a body assembly for a dental flosser, comprising: The fuselage body 1, the first rotating body 2, the second rotating body 3, and the cover 4; The main body 1 is provided with a connecting hole 11 extending along its length direction. One end of the main body 1 along its length direction is provided with a connecting groove 12. The connecting groove 12 communicates with the connecting hole 11 and forms an opening 121 on one side facing the main body 1. A first shaft hole 13 extending outward is opened in the middle of the bottom wall of the connecting groove 12 away from the opening 121. The first rotating body 2 is rotatably disposed in the connecting hole 11, and the end of the first rotating body 2 facing the connecting groove 12 is provided with a drive gear part 20; The second rotating body 3 includes a limiting part 31, a first shaft part 32, a second shaft part 33, and a driven gear part 34. The first shaft part 32 and the second shaft part 33 extend outward from opposite ends of the limiting part 31. The limiting part 31, the first shaft part 32, and the driven gear part 34 are disposed in the connecting groove 12. The limiting part 31 abuts against the bottom wall of the connecting groove 12. The driven gear part 34 meshes with the driving gear part 20 so that the rotation of the first rotating body 2 is transmitted to the second rotating body 3 after the rotation direction is changed. The second shaft part 33 passes through the first shaft hole 13 and is clearance-fitted with the first shaft hole 13. The end of the second shaft part 33 away from the limiting part 31 is used to connect the dental cleaning component 5 to drive the dental cleaning component 5 to rotate. The cover 4 is fixed to the opening 121. The inner wall of the cover 4 is provided with a second shaft hole 41. The end of the first shaft part 32 is inserted into the second shaft hole 41 and is clearance-fitted with the second shaft hole 41.

[0022] Compared with the prior art, the main body 1 of the present invention is provided with a connecting hole 11 and a connecting groove 12. The bottom wall of the connecting groove 12 has a first shaft hole 13 that extends outward. The connecting groove 12 communicates with the connecting hole 11 and forms an opening 121. The first rotating body 2 is rotatably disposed in the connecting hole 11. The limiting part 31, the first shaft part 32, and the driven gear part 34 of the second rotating body 3 are disposed in the connecting groove 12. The driven gear part 34 of the second rotating body 3 meshes with the driving gear part 20 of the first rotating body 2 so that the rotation of the first rotating body 2 is transmitted to the second rotating body 3. The second shaft part 33 of the second rotating body 3 is connected to the first rotating body 2. The dental cleaning component 5 is connected to drive the dental cleaning component 5 to rotate. The second shaft portion 33 of the second rotating body 3 passes through the first shaft hole 13 and is clearance-fitted with the first shaft hole 13. The end of the first shaft portion 32 of the second rotating body 3 is inserted into the second shaft hole 41 of the cover body 4 that is fixed at the opening 121 and is clearance-fitted with the second shaft hole 41. This structure allows the radial dimensions of the first shaft hole 13, the second shaft hole 41, the first shaft portion 32, and the second shaft portion 33 to be much smaller than the connecting groove 12, thereby reducing the friction area between the second rotating body 3 and the main body 1, so as to reduce the rotational heat and rotational noise of the second rotating body 3.

[0023] See Figures 1 to 4 In this embodiment, the limiting part 31 of the second rotating body 3, the first shaft part 32 and the second shaft part 33, the first shaft hole 13 of the main body 1 and the second shaft hole 41 of the cover 4 are arranged coaxially. Due to the arrangement of the first shaft hole 13 and the second shaft hole 41, the radial dimensions of the first shaft part 32 and the second shaft part 33 can be set to be smaller than the radial dimension of the connecting groove 12, thereby effectively reducing the rotational friction area between the second rotating body 3 and the main body 1, and thus effectively reducing the heat and noise of the second rotating body 313 when rotating.

[0024] See Figures 1 to 4In this embodiment, an arc-shaped surface 311 is provided at the edge of the end where the limiting part 31 abuts against the bottom wall of the connecting groove 12, which helps to reduce the contact area between the limiting part 31 and the bottom wall of the connecting groove 12 and reduce the rotational heat generation of the second rotating body 3.

[0025] See Figures 1 to 4 The second shaft portion 33 has a threaded hole 331 formed inward at one end away from the limiting portion 31, and a threaded post 51 is formed outward at one end of the dental cleaning component 5. The threaded post 51 is threadedly connected to the threaded hole 331 so that the dental cleaning component 5 is connected to the second shaft portion 33, which facilitates the disassembly and replacement of the dental cleaning component 5.

[0026] See Figures 1 to 4 The cover 4 includes a first cover portion 42 and a second cover portion 43. The second cover portion 43 extends from the middle of one end of the first cover portion 42 and forms a second shaft hole 41 inwardly at the middle of one end facing the connecting groove 12. The radial dimension of the opening 121 is larger than the radial dimension of the connecting groove 12, so that a limiting surface 1211 is formed in the opening 121, which is orthogonally connected to the inner sidewalls of the opening 121 and the connecting groove 12 respectively. The second cover portion 43 is adapted to be inserted into the end of the connecting groove 12 away from the first shaft hole 13. The edge of the first cover portion 42 abuts against the limiting surface 1211. The above-mentioned arrangement of the second cover portion 43 is conducive to the quick and stable installation of the first cover portion 42 into the opening 121.

[0027] Specifically, in this embodiment, the second shaft hole 41 formed in the second cover portion 43 is a blind hole, and the radial dimension of the second cover portion 43 is consistent with the radial dimension of the connecting groove 12, so that the outer side wall of the second cover portion 43 is tightly fitted with the inner side wall of the connecting groove 12, and the second cover portion 43 is stably inserted into the connecting groove 12, but it is not limited to this.

[0028] Specifically, in this embodiment, the radial dimension of the first cover 42 is slightly smaller than the radial dimension of the opening 121, so that the first cover 42 can be quickly inserted into the opening 121. The end of the first cover 42 away from the first cover 42 is fixedly connected to the end of the body 1 with the connecting groove 12 by seam welding, but it is not limited to this.

[0029] See Figures 1 to 4 The driven gear section 34 includes a plurality of driven teeth 341, which are spaced around the first shaft section 32 on the end face of the limiting section 31 facing the opening 121. This facilitates a tighter meshing connection between the driving gear section 20 and the driven gear section 34 as the first rotating body 2 rotates.

[0030] See Figures 1 to 4The main body 1 includes a handle 13 and a housing 14. The handle 13 includes a first part 131 and a second part 132 along its length. The first part 131 has a mounting groove 133. The second part 132 includes a base 1321 connected to the first part 131 and a boss 1322 extending upward from the middle of the end of the base 1321 away from the first part 131. A first shoulder 1323 is formed between the boss 1322 and the base 1321. The second part 132 has a first mounting hole 1324 extending along the length of the handle 13 and penetrating the base 1321 and the boss 1322. One end of the first mounting hole 1324 communicates with the mounting groove 133. The housing 14 has a second mounting hole 141 and a connecting groove 12 that extend outward in different directions and are interconnected. The boss 1322 is adapted to be inserted into the end of the second mounting hole 141 away from the connecting groove 12. The end of the side wall of the housing 14 that defines the second mounting hole 141 is located in the first shoulder 1323. The mounting groove 133, the first mounting hole 1324 and the second mounting hole 141 that are connected in sequence along the length direction of the main body 1 form a connecting hole 11. The first rotating body 2 includes a rotating shaft portion 21 and a head portion 22. The rotating shaft portion 21 extends from the middle of one end of the head portion 22. A second shoulder portion 23 is formed between the head portion 22 and the rotating shaft portion 21. A drive gear portion 20 is formed at the end of the head portion 22 away from the rotating shaft portion 21. The head portion 22 is inserted into the end of the second mounting hole 141 near the connecting groove 12 and is clearance-fitted with the second mounting hole 141. The second shoulder portion 23 abuts against the end face of the boss 1322. The rotating shaft portion 21 passes through the first mounting hole 1324 and the mounting groove 133 and is clearance-fitted with the first mounting hole 1324.

[0031] The protrusion 1322 of the handle 13 is tightly inserted into the second mounting hole 141 of the housing 14. The head 22 of the first rotating body 2 is clearance-fitted with the second mounting hole 141. The second shoulder 23 formed between the head 22 of the first rotating body 2 and the shaft 21 abuts against the end face of the protrusion 1322. The shaft 21 is clearance-fitted with the first mounting hole 1324. This makes the handle 13, the housing 14 and the first rotating body 2 form a nested structure, which can effectively improve the installation stability and rotation accuracy of the first rotating body 2. It is also beneficial to improve the smoothness of the transmission between the first rotating body 2 and the second rotating body 3, thereby reducing the noise of the body components of the dental scaler during operation.

[0032] See Figures 1 to 4In this embodiment, the housing 14 includes a first connecting portion 142 extending along a first direction A and a second connecting portion 143 extending along a second direction B. The first connecting portion 142 has a second mounting hole 141 having a first central axis 101, and the second connecting portion 143 has a connecting groove 12 having a second central axis 102. The included angle between the first central axis 101 and the second central axis 102 is 90 degrees, which is beneficial for the driving gear portion 20 and the driven gear portion 34 to form a tight fit, thereby improving the smoothness of the transmission fit between the second rotating body 3 and the first rotating body 2.

[0033] Specifically, in this embodiment, the first mounting hole 1324 has a third central axis 103, the rotation axis of the first rotating body 2 is coaxial with the first central axis 101 and the third central axis 103, and the rotation axis of the second rotating body 3 is coaxial with the second central axis 102.

[0034] See Figures 1 to 4 In this embodiment, the driving gear part 20 includes a plurality of driving teeth 201 with one end of the head 22 away from the rotating shaft part 21 arranged circumferentially. The end of the head 22 with the driving teeth 201 extends into the connecting groove 12 so that the driving teeth 201 and the driven teeth 341 mesh and connect.

[0035] See Figures 1 to 4 The rotating shaft 21 includes a first column 212 and a second column 213. One end of the first column 212 is connected to the end of the head 22 away from the drive gear 20, and the other end is connected to the second column 213. The radial dimension of the second column 213 is smaller than that of the first column 212, which facilitates the quick insertion of the rotating shaft 21 into the first mounting hole 1324.

[0036] Furthermore, a tapered transition surface 214 is formed at the connection between the first column portion 212 and the second column portion 213 to facilitate the transition and guidance from the second column portion 213 to the first column portion 212 when the rotating shaft portion 21 is inserted into the first mounting hole 1324.

[0037] Furthermore, the axial dimension of the first mounting hole 1324 is larger than the axial dimension of the head 22, which helps to further improve the installation stability and rotation accuracy of the first rotating body 2.

[0038] Furthermore, the end of the sidewall defining the second mounting hole 141 of the housing 14 is fixedly connected to the base 1321 by seam welding, which facilitates a stable connection between the housing 14 and the handle 13.

[0039] Furthermore, the first part 131 includes a gripping part 1311 connected to the base 1321. The end of the gripping part 1311 away from the base 1321 is provided with a mounting groove 133, and the radial dimension of this end is greater than the radial dimension of the base 1321. The outer side wall of the end of the gripping part 1311 connected to the base 1321 is formed with a transitional conical surface 1312.

[0040] Specifically, in this embodiment, the gripping part 1311, the base 1321 and the boss 1322 are an integral structure, but not limited thereto. In some embodiments, the gripping part 1311, the base 1321 and the boss 1322 can also be independent parts connected together by other means, including but not limited to mechanical fasteners, structural threads, adhesives and ultrasonic welding.

[0041] See also Figures 1 to 4 The present invention discloses a dental flosser, which includes: the body assembly of the dental flosser as described above; The dental cleaning component 5 is connected to the second rotating body 3. A drive assembly is connected to the first rotating body 2 and is used to drive the first rotating body 2 to rotate.

[0042] Specifically, in this embodiment, the dental cleaning component 5 includes a dental polishing cup, and the driving component includes a rotary drive motor, the driving end of which is disposed in the connecting groove 12 and connected to the second column portion 213 of the first rotating body 2, so as to drive the second rotating body 3 to rotate the dental cleaning component 5 by driving the first rotating body 2 to rotate, but not limited thereto.

[0043] The above-disclosed embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, any equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A body assembly for a dental flosser, characterized in that, include: The fuselage body, the first rotating body, the second rotating body, and the cover; The main body of the fuselage is provided with a connecting hole extending along its length direction. One end of the main body of the fuselage is provided with a connecting groove. The connecting groove communicates with the connecting hole and forms an opening on one side facing the main body of the fuselage. A first shaft hole extending outward is opened in the middle of the bottom wall of the connecting groove away from the opening. The first rotating body is rotatably disposed in the connecting hole, and a drive gear is provided at one end of the first rotating body facing the connecting groove; The second rotating body includes a limiting part, a first shaft part, a second shaft part, and a driven gear part. The first shaft part and the second shaft part extend outward from opposite ends of the limiting part. The limiting part, the first shaft part, and the driven gear part are disposed in the connecting groove. The limiting part abuts against the bottom wall of the connecting groove. The driven gear part meshes with the driving gear part to transmit the rotation of the first rotating body to the second rotating body after changing the direction of rotation. The second shaft part passes through the first shaft hole and is clearance-fitted with the first shaft hole. The end of the second shaft part away from the limiting part is used to connect to the dental cleaning component to drive the dental cleaning component to rotate. The cover is fixed to the opening, and the inner wall of the cover is provided with a second shaft hole. The end of the first shaft is inserted into the second shaft hole and is clearance-fitted with the second shaft hole.

2. The body assembly of the dental flosser according to claim 1, characterized in that, The second shaft portion has a threaded hole formed inward at one end away from the limiting portion, and the dental cleaning component has a threaded post formed outward at one end. The threaded post is threadedly connected to the threaded hole so that the dental cleaning component is connected to the second shaft portion.

3. The body assembly of the dental flosser according to claim 1, characterized in that, The cover includes a first cover portion and a second cover portion. The second cover portion extends from the middle of one end of the first cover portion and forms a second shaft hole inward toward the middle of one end of the connecting groove. The radial dimension of the opening is larger than the radial dimension of the connecting groove, so that limiting surfaces are formed in the opening and are orthogonally connected to the inner sidewalls of the opening and the connecting groove, respectively. The second cover portion is adapted to be inserted into the end of the connecting groove away from the first shaft hole, and the edge of the first cover portion abuts against the limiting surface.

4. The body assembly of the dental flosser according to claim 1, characterized in that, The driven gear portion includes a plurality of driven teeth, which are spaced apart around the first shaft portion on the end face of the limiting portion facing the opening.

5. The body assembly of the dental flosser according to claim 1, characterized in that, The main body of the device includes a handle and a housing. The handle includes a first part and a second part along its length. The first part has a mounting groove. The second part includes a base connected to the first part and a boss extending upward from the middle of the end of the base away from the first part. A first shoulder is formed between the boss and the base. The second part has a first mounting hole extending along the length of the handle and penetrating the base and the boss. One end of the first mounting hole communicates with the mounting groove. The housing has a second mounting hole and a connecting groove that extend outward in different directions and are interconnected. The boss is adapted to be inserted into the end of the second mounting hole away from the connecting groove. The end of the housing that defines the side wall of the second mounting hole is provided at the first shoulder. The mounting groove, the first mounting hole and the second mounting hole, which are connected sequentially along the length of the main body, form the connecting hole. The first rotating body includes a rotating shaft and a head. The rotating shaft extends from the middle of one end of the head. A second shoulder is formed between the head and the rotating shaft. The driving gear is formed at the end of the head away from the rotating shaft. The head is inserted into the end of the second mounting hole near the connecting groove and is in clearance fit with the second mounting hole. The end face of the second shoulder abuts against the end face of the boss. The rotating shaft passes through the first mounting hole and the mounting groove and is in clearance fit with the first mounting hole.

6. The body assembly of the dental flosser according to claim 5, characterized in that, The rotating shaft includes a first column and a second column. One end of the first column is connected to the end of the head away from the drive gear, and the other end is connected to the second column. The radial dimension of the second column is smaller than that of the first column.

7. The body assembly of the dental flosser according to claim 5, characterized in that, The axial dimension of the first mounting hole is greater than the axial dimension of the head.

8. The body assembly of the dental flosser according to claim 5, characterized in that, The end of the sidewall defining the second mounting hole of the housing is fixedly connected to the base by seam welding.

9. The body assembly of the dental flosser according to claim 5, characterized in that, The first part includes a gripping part connected to the base, wherein the gripping part has the mounting groove at one end away from the base, and the radial dimension of the end is greater than the radial dimension of the base, and the outer side wall of the end of the gripping part connected to the base has a transitional tapered surface.

10. A dental flosser, characterized in that, include: The body assembly of the dental flosser as described in any one of claims 1 to 9; A dental cleaning component, wherein the dental cleaning component is connected to the second rotating body; A drive component is connected to the first rotating body and is used to drive the first rotating body to rotate.

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