A dental flosser

Abstract

The invention discloses a dental flosser, which relates to the technical field of teeth cleaning. The dental flosser comprises a shell, a dental floss assembly and a driving group assembly. The dental floss assembly comprises a U-shaped frame and a flat dental floss, and the U-shaped frame is clamped with the shell; the flat dental floss comprises a fixed end and a rotating end, the fixed end is fixedly connected to one side wall of the opening end of the U-shaped frame, and the rotating end is rotatably connected to the other side wall of the opening end of the U-shaped frame; the driving assembly is arranged in the cavity of the shell and clamped with the rotating end of the flat dental floss to drive the rotating end of the flat dental floss to rotate a set angle and make the flat dental floss spiral. By setting the flat dental floss and using the driving assembly to make the flat dental floss rotate in a spiral shape, the friction between the flat dental floss and the gap between teeth is increased, and food residues in the gap between teeth are more easily removed. The flat dental floss can also be rotated in the gap between teeth to remove food residues, which solves the problem that the residues in the gap between teeth are difficult to clean and the cleaning process is easy to damage gums and teeth in the prior art.

Description

Technical Field

[0001] The invention relates to the technical field of teeth cleaning, and in particular to a dental flosser. Background Art

[0002] As people gradually pay more attention to oral hygiene and health, removing the residue between teeth in time after eating has become a daily habit of people. Currently, the commonly used tools for cleaning the residue between teeth include flat dental floss, round dental floss, interdental brushes and toothpicks.

[0003] Flat dental floss is not ideal for patients with receding gums with small gaps at the top of teeth and large gaps at the root. It also requires hands to enter the mouth, which is very unhygienic and unsightly. Round dental floss has a thicker diameter and is not easy to enter the gaps between teeth, and it can easily cause gum injury. It also requires hands to enter the mouth, which is unhygienic and unsightly. Although interdental brushes can enter directly from the larger gaps at the root of teeth without passing through the top of teeth with narrower gaps, their diameter is too thick to clean small gaps, and it is not easy to enter from the outside of the back teeth. Toothpicks are not easy to enter the gaps between teeth, and cleaning is not thorough. The tip can easily damage the gums, and the action is unsightly. As for dental floss, it needs to be pulled out from the tooth surface when in use, and its lateral force on the teeth is relatively large, which can loosen teeth that have undergone root canal treatment.

[0004] The dental floss stick structure with application publication number CN102949246A has brush bodies at both ends of the dental floss, and a cleaning portion is provided around the brush body, thereby improving the cleaning ability of the gaps between teeth. Although the problem of cleaning the gaps between teeth is solved, the problem that the dental floss needs to be inserted into the gaps between teeth, otherwise the brush body will damage the teeth and gums, making it inconvenient to use; in addition, after the dental floss stick is used, the dental floss cannot be replaced and needs to be discarded, which increases the cost of use. Summary of the invention

[0005] In view of the defects existing in the prior art, the purpose of the present invention is to provide a dental flosser to solve the problems in the prior art that the residue between teeth is difficult to clean, the cleaning process is likely to damage the gums and teeth, and the dental floss cannot be replaced.

[0006] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0007] The present application provides a dental flosser, comprising:

[0008] a housing having a cavity therein;

[0009] A dental floss assembly comprising:

[0010] -U-shaped frame, which is snap-fitted with the shell;

[0011] - Flat dental floss, comprising a fixed end and a rotating end, wherein the fixed end is fixedly connected to one side wall of the opening end of the U-shaped frame, and the rotating end is rotatably connected to the other side wall of the opening end of the U-shaped frame;

[0012] The driving assembly is disposed in the cavity of the shell and is engaged with the rotating end of the dental floss to drive the rotating end of the dental floss to rotate at a set angle and make the dental floss spiral.

[0013] In some optional embodiments, the driving assembly includes:

[0014] A transmission shaft, one end of which is provided with a first bevel gear;

[0015] A driven shaft, which is arranged perpendicularly to the transmission shaft and is clamped to the rotating end of the flat dental floss, and a second bevel gear is disposed on the outer sleeve of the driven shaft, and the second bevel gear is meshed with the first bevel gear;

[0016] The driving mechanism is connected to the other end of the transmission shaft and is used to drive the transmission shaft to rotate and to make the driven shaft rotate by a set angle.

[0017] In some optional embodiments, the driving mechanism includes a driving gear and a knob, a driving gear is provided at the other end of the transmission shaft, the driving gear is meshed with the transmission gear, and the knob is connected to the driving gear and is located outside the shell for driving the driving gear.

[0018] In some optional embodiments, a limiting protrusion is provided on the outer wall of the shell, and a limiting member is provided on the knob, and when the knob is rotated to a set angle, the limiting member abuts against the limiting protrusion.

[0019] In some optional embodiments, the driven shaft is provided with a hexagonal hole along the axial direction, the rotating end of the flat dental wire is rotatably connected to the U-shaped frame through a rotating shaft, and the end of the rotating shaft away from the flat dental wire is configured as a hexagonal structure adapted to the hexagonal hole and is clamped with the driven shaft.

[0020] In some optional embodiments, a positioning groove is provided on the inner wall of the hexagonal hole, and a positioning protrusion which can be engaged with the positioning groove is correspondingly provided on the rotating shaft.

[0021] In some optional embodiments, a limiting groove is further provided on the outer wall of the shell, and a protrusion is provided on the side of the limiting member close to the shell. The limiting groove is located on the rotation path of the limiting member, and when the protrusion is engaged with the limiting groove, the angle between the positioning groove and the plane where the transmission shaft is located is a set angle.

[0022] In some optional embodiments, the shell is a rectangular parallelepiped, the transmission shaft is arranged along the length direction of the rectangular parallelepiped, and the knob and the driven shaft are respectively located at two ends of the length direction of the shell.

[0023] In some optional embodiments, the shell is provided with an L-shaped avoidance groove for placing the U-shaped frame, the transmission shaft is rotatably connected to the avoidance groove, and the inner wall of the avoidance groove is provided with a fixing structure for clamping with the U-shaped frame.

[0024] In some optional embodiments, buckles are respectively provided on two adjacent side walls of the avoidance groove, and the side walls of the U-shaped frame are correspondingly provided with slots that are engaged with the buckles.

[0025] Compared with the prior art, the advantages of the present invention are: by providing a flat dental floss and utilizing a driving assembly to rotate the rotating end of the flat dental floss to a set angle so that the flat dental floss is spiral, the friction between the flat dental floss and the gaps between teeth can be increased, making it easier to remove food residues in the gaps between teeth; on the other hand, food residues can be taken out by rotating the flat dental floss in the gaps between teeth, thereby solving the problem in the prior art that the residues in the gaps between teeth are difficult to clean and the cleaning process easily damages the gums and teeth; at the same time, the dental floss assembly is detachable and replaceable by being snap-connected with the shell, thereby reducing the use cost of the dental flosser and solving the problem that the dental floss cannot be replaced after use and needs to be discarded as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a structural schematic diagram of a dental flosser of the present invention;

[0028] Figure 2 for Figure 1 Schematic diagram of the connection between the middle drive assembly and the housing;

[0029] Figure 3 for Figure 2 Schematic diagram of the coordination between the transmission shaft and the driven shaft;

[0030] Figure 4 for Figure 1 A schematic diagram of the structure of the dental floss assembly;

[0031] Figure 5 for Figure 1 Schematic diagram from top view.

[0032] In the figure: 1. shell; 11. support frame; 12. limiting protrusion; 13. limiting groove; 14. rotation arrow; 2. dental floss assembly; 21. U-shaped frame; 211. slot; 22. rotating shaft; 221. end; 222. positioning protrusion; 23. flat dental floss; 3. driving assembly; 31. transmission shaft; 311. first bevel gear; 312. transmission gear; 32. driven shaft; 321. second bevel gear; 322. positioning groove; 33. driving mechanism; 331. driving gear; 332. knob; 333. limiting member; 35. connecting shaft; 4. damper. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0034] The embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0035] like Figure 1 and Figure 2 As shown, the present application provides a dental flosser, including a shell 1, a dental floss assembly 2 and a drive assembly 3. The dental floss assembly 2 is detachably mounted on the shell 1, and the drive assembly 3 is disposed in a cavity of the shell 1 and connected to the dental floss assembly 2, for twisting the flat dental floss 23 on the dental floss assembly 2.

[0036] Specifically, the dental floss assembly 2 includes a U-shaped frame 21 and a flat dental floss 23, and the U-shaped frame 21 is clamped with the above-mentioned shell 1; the flat dental floss 23 includes a fixed end and a rotating end, the above-mentioned fixed end is fixedly connected to a side wall of the open end of the above-mentioned U-shaped frame 21, and the above-mentioned rotating end is rotatably connected to the other side wall of the open end of the above-mentioned U-shaped frame 21; the driving assembly 3 is arranged in the cavity of the above-mentioned shell 1 and is clamped with the rotating end of the above-mentioned flat dental floss 23 to drive the rotating end of the above-mentioned flat dental floss 23 to rotate a set angle and make the above-mentioned flat dental floss 23 spiral.

[0037] It can be understood that the U-shaped frame 21 is detachably connected to the housing 1 by a snap-on connection. When the U-shaped frame 21 is mounted on the housing 1 and the driving assembly 3 is operated, the driving assembly 3 causes the rotating end of the flat dental floss 23 to rotate at a set angle. Since the fixed end of the flat dental floss 23 is fixedly connected to the U-shaped frame 21, the flat dental floss 23 can be spirally shaped under the drive of the driving assembly 3. The flat dental floss 23 is made of a material having a certain elastic deformation recovery ability, specifically, it can be made of natural rubber or synthetic rubber with high softness, for example, it can be formed by using one or more of latex, ethylene propylene diene monomer (EPDM: EthylenePropyleneDieneMonomer) rubber, styrene ethylene butadiene styrene (SEBS: StyreneEthyleneButadieneStyrene) rubber, butyl rubber, polyurethane rubber, silicone rubber, copolyester, polyamide, etc., but not limited thereto.

[0038] The purpose of such a configuration is that, on the one hand, the spiral-shaped flat dental floss 23 has more contact surfaces, which can better clean food residues in the gaps between teeth; on the other hand, the flat dental floss 23 can be rotated in the gaps between teeth so that food residues attached to the teeth can be scraped off and taken out, which has a better cleaning effect than traditional dental floss.

[0039] In some optional embodiments, the driving assembly 3 includes a transmission shaft 31, a driven shaft 32 and a driving mechanism 33. A first bevel gear 311 is provided at one end of the transmission shaft 31; the driven shaft 32 is vertically arranged with the transmission shaft 31 and is clamped with the rotating end of the flat dental floss 23; a second bevel gear 321 is provided on the outer sleeve of the driven shaft 32, and the second bevel gear 321 is meshed with the first bevel gear 311; the driving mechanism 33 is connected to the other end of the transmission shaft 31, and is used to drive the transmission shaft 31 to rotate a set angle.

[0040] During specific operation, the driving mechanism 33 is used to rotate the transmission shaft 31. Under the action of the vertically arranged and rotatably connected first bevel gear 311 and second bevel gear 321, the transmission shaft 31 drives the driven shaft 32 to rotate, thereby rotating the rotating end of the flat dental floss 23 by a set angle.

[0041] In this example, the transmission shaft 31 is arranged along the length direction of the shell 1, and the driven shaft 32 is arranged perpendicular to the transmission shaft 31. The first bevel gear 311 and the second bevel gear 321 are engaged to convert the rotation of the transmission shaft 31 into the rotation of the driven shaft 32, thereby changing the transmission direction and driving the rotating end of the flat dental floss 23 to rotate.

[0042] like Figure 3As shown, in some optional embodiments, a support frame 11 is further provided in the cavity of the shell 1, which is used to abut against the side of the first bevel gear 311 away from the driven shaft 32, so as to fix the relative position of the transmission shaft 31 in the shell 1 and prevent the first bevel gear 311 and the second bevel gear 321 from being displaced when they are meshing and rotating, thereby preventing the connection from failing.

[0043] Optionally, the driving mechanism 33 may be a rotating handle sleeved on the other end of the transmission shaft 31 and located outside the housing 1, or may be a driving motor, the output end of the driving motor is connected to the other end of the transmission shaft 31, and the transmission shaft 31 is driven to rotate.

[0044] In some optional embodiments, the driving mechanism 33 includes a driving gear 331 and a knob 332. The other end of the transmission shaft 31 is provided with a transmission gear 312. The driving gear 331 is meshed with the transmission gear 312. The knob 332 is connected to the driving gear 331 and is located outside the shell 1 for driving the driving gear 331.

[0045] In this example, the knob 332 is arranged outside the shell 1 and is connected to the driving gear 331 through the connecting shaft 35, thereby driving the driving gear 331 to rotate. The driving gear 331 is engaged with the transmission gear 312 at the other end of the transmission shaft 31, so that the transmission shaft 31 can be rotated by turning the knob 332.

[0046] Preferably, the transmission ratio of the driving gear 331 to the transmission gear 312 is 3:1 to 4:1. It can be understood that the transmission ratio of the driving gear 331 to the transmission gear 312 is the diameter ratio of the driving gear 331 to the transmission gear 312. By setting the diameter of the driving gear 331 to be larger than the diameter of the transmission gear 312, the transmission shaft 31 can be rotated at a larger angle by rotating the knob 332 at a smaller angle, which saves time and effort during operation.

[0047] like Figure 5 As shown, in some optional embodiments, a limiting protrusion 12 is provided on the outer wall of the shell 1, and a limiting member 333 is provided on the knob 332. When the knob 332 is rotated to a set angle, the limiting member 333 abuts against the limiting protrusion 12.

[0048] It can be understood that the role of the limiting protrusion 12 is to limit the rotation angle of the knob 332 relative to the housing 1, so as to make the transmission shaft 31 stop rotating after rotating to a set angle, so that the flat dental floss 23 maintains the spiral state required for use.

[0049] In this example, the limit protrusion 12 is arranged on the outer wall of the shell 1 close to the knob 332, the limit member 333 is arranged on the arc-shaped outer wall of the knob 332, and the limit protrusion 12 is located on the rotation path of the limit member 333, so that when the knob 332 is rotated to a set angle, the limit protrusion 12 blocks the limit member 333 and prevents it from continuing to rotate in this direction.

[0050] In some optional embodiments, the driven shaft 32 is provided with a hexagonal hole along the axial direction, and the rotating end of the flat dental floss 23 is rotatably connected to the U-shaped frame 21 via the rotating shaft 22, and the end 221 of the rotating shaft 22 away from the flat dental floss 23 is configured as a hexagonal structure adapted to the hexagonal hole, and is clamped with the driven shaft 32.

[0051] In order to allow the driven shaft 32 to be engaged with the rotating end of the flat dental wire 23 and drive the rotating end to rotate, a hexagonal hole is provided along the axial direction of the driven shaft 32, and the rotating end of the flat dental wire 23 is engaged with the driven shaft 32 through the hexagonal end 221. In other embodiments, the driven shaft 32 and the rotating shaft 22 can also be engaged in other ways, which are not specifically limited here. In this example, the hexagonal structure of the end 221 of the rotating shaft 22 cooperates with the hexagonal hole to facilitate plug-in installation.

[0052] Furthermore, a positioning groove 322 is provided on the inner wall of the hexagonal hole, and a positioning protrusion 222 which can be connected with the positioning groove 322 is correspondingly provided on the rotating shaft 22 .

[0053] It can be understood that the purpose of providing the positioning groove 322 and the positioning protrusion 222 is to enable the U-shaped frame 21 to form a set angle with the housing 1 when the U-shaped frame 21 is engaged with the hexagonal hole through the rotating shaft 22 .

[0054] like Figure 4 As shown, in some optional embodiments, a limiting groove 13 is further provided on the outer wall of the shell 1, and a protrusion is provided on the side of the limiting member 333 close to the shell 1, and the limiting groove 13 is located on the rotation path of the limiting member 333. When the protrusion is engaged with the limiting groove 13, the positioning groove 322 is at a set angle with the transmission shaft 31.

[0055] In specific operation, before installing the dental floss assembly 2, the knob 332 is rotated in the positive direction so that the protrusion on the limiter 333 is engaged in the limit groove 13. At this time, the angle between the positioning groove 322 on the inner wall of the hexagonal hole and the plane where the transmission shaft 31 is located is a set angle, and then the rotating shaft 22 on the rotating end of the flat dental floss 23 is inserted into the hexagonal hole and the positioning groove 322 is engaged with the positioning protrusion 222. At this time, the U-shaped frame 21 and the housing 1 are at an angle, and the flat dental floss 23 is in the initial state, that is, it remains flat. The U-shaped frame 21 is rotated so that the U-shaped frame 21 rotates with the rotating shaft 22 as the axis and is in the same plane as the housing 1. The rotating end of the flat dental floss 23 rotates together and makes the flat dental floss 23 spiral. At this time, driven by the rotation of the rotating shaft 22, the knob 332 is rotated in the opposite direction, and the above-mentioned protrusion is moved out of the limit groove 13.

[0056] It can be seen that the limiting groove 13 and the protrusion are provided for the purpose of reserving a rotation angle for the U-shaped frame 21 to rotate to a preset position when the protrusion is locked in the limiting groove 13.

[0057] In this example, after the knob 332 is rotated in the reverse direction to a set angle, the limiting member 333 abuts against the limiting protrusion 12 to prevent the knob 332 from rotating too much.

[0058] Preferably, the limiting groove 13 is provided with an arc-shaped buffer portion along the rotation direction of the protrusion, so as to facilitate the protrusion to move into or out of the limiting groove 13 when rotating.

[0059] In some optional embodiments, a damper 4 is further provided on the inner wall of the shell 1, and the damper 4 is connected to the connecting shaft 35 for controlling the rotation of the driving gear 331 to prevent the driving gear 331 from rotating too much and causing the flat dental floss 23 to twist and break.

[0060] In some optional embodiments, the housing 1 is a cuboid, the transmission shaft 31 is arranged along the length direction of the cuboid, and the knob 332 and the driven shaft 32 are respectively located at two ends of the housing 1 in the length direction.

[0061] The housing 1 is configured as a rectangular parallelepiped, which is convenient for holding and using the dental flosser. When the knob 332 is rotated through the transmission shaft 31, the driven shaft 32 is driven to rotate.

[0062] In some optional embodiments, the shell 1 is provided with an L-shaped avoidance groove for placing the U-shaped frame 21, the transmission shaft 31 is rotatably connected to the L-shaped avoidance groove, and the inner wall of the L-shaped avoidance groove is provided with a fixed structure for clamping with the U-shaped frame 21.

[0063] like Figure 2As shown, in this example, the L-shaped avoidance groove is located at one end of the rectangular housing 1 in the length direction, and the transmission shaft 31 is rotatably connected to the side wall of the L-shaped avoidance groove in the length direction. Buckles are provided on two adjacent side walls of the L-shaped avoidance groove, and a slot 211 that is engaged with the buckle is correspondingly provided on the outer side wall of the U-shaped frame 21. The U-shaped frame 21 and the housing 1 are detachably connected through the engagement of the snap connector and the slot 211, so that the dental floss assembly 2 is easy to replace.

[0064] In this example, the slot 211 is an avoidance slot. When the rotating shaft 22 is engaged with the driven shaft 32 and the U-shaped frame 21 is rotated to a preset position, the engaging member is engaged with the slot 211 .

[0065] In some optional embodiments, a rotation arrow 14 is also marked on the outer wall of the shell 1 near the knob 332 , and the direction of the rotation arrow 14 is consistent with the above-mentioned opposite direction, so as to facilitate the user to identify the rotation direction of the knob 332 to control and adjust the twisting of the flat dental floss 23 .

[0066] The working principle of the embodiment of the present application is as follows: the knob 332 is turned in the positive direction so that the protrusion on the limiter 333 is engaged in the limiter groove 13. At this time, the angle between the positioning groove 322 on the inner wall of the hexagonal hole and the plane where the transmission shaft 31 is located is a set angle, and then the rotating shaft 22 is inserted into the hexagonal hole so that the positioning groove 322 is engaged with the positioning protrusion 222. At this time, the U-shaped frame 21 and the housing 1 are at an angle, and the flat dental floss 23 is in the initial state, that is, it remains flat. The U-shaped frame 21 is rotated so that the U-shaped frame 21 rotates around the rotating shaft 22 as the axis, and the U-shaped frame 21 and the housing 1 are detachably connected through the engagement of the clamping member and the clamping groove 211. At this time, since the rotating end of the flat dental floss 23 rotates with the rotation of the U-shaped frame 21, the flat dental floss 23 is in a spiral shape. At this time, driven by the rotation of the rotating shaft 22, the knob 332 rotates in the opposite direction, and the above-mentioned protrusion moves out of the limiting groove 13, and stops rotating after contacting with the limiting protrusion 12. After the U-shaped frame 21 is installed on the L-shaped avoidance groove of the housing 1, the knob 332 is rotated in the positive direction to make the protrusion snap into the limiting groove 13, and the spiral state of the flat dental floss 23 is released, so that the flat dental floss 23 is restored to the initial state, so that it can be inserted between the teeth. After the flat dental floss 23 is inserted into the teeth, the knob 332 is rotated in the opposite direction to make the flat dental floss 23 spiral. At this time, the dental flosser can be moved along the length direction of the flat dental floss 23 to remove the residue in the teeth, or the knob 332 can be rotated in the positive and negative directions alternately to make the flat dental floss 23 rotate in the teeth, so as to remove the residue in the teeth. After cleaning is completed, the knob 332 is rotated to make the protrusion snap into the limiting groove 13, and the flat dental floss 23 returns to its initial state and can be taken out from the teeth.

[0067] The dental flosser of the present invention is provided on a U-shaped frame body with one end of the flat dental floss fixed and the other end rotatably connected, and the rotating end is driven to rotate by a driving assembly located in the shell body, so that the flat dental floss can rotate in a spiral shape, thereby increasing the contact area between the flat dental floss and food residues in the teeth, improving the friction force, and achieving a better cleaning effect; by using the cooperation of the first bevel gear and the second bevel gear, the rotation of the transmission shaft is converted into the rotation of the driven shaft, the space occupancy rate of the driving assembly is reduced, and the conversion of rotations in different directions is realized; by arranging a driving gear with a larger diameter and a transmission gear with a smaller diameter, the rotation of the transmission shaft is converted into the rotation of the driven shaft, and ... rotation of the transmission shaft is converted into the rotation of the driven shaft, and the rotation of the transmission shaft is converted into the rotation of the driven shaft, and the space occupancy rate of the driving gear is reduced, and the conversion of rotations in different directions is realized; by arranging a driving gear with a larger diameter and a transmission gear with a smaller diameter, the rotation of the transmission shaft is converted into the rotation of the driven shaft, and the rotation of the transmission shaft is converted into the rotation of the driven shaft, and the rotation of the transmission shaft is converted into the rotation of the driven shaft, and the rotation of the transmission shaft is converted into the rotation of the driven shaft The tooth flosser of the present invention is simple to operate and the dental floss assembly can be replaced. The rotational twisting of the dental floss increases the friction of food residues in the teeth, which is convenient for pulling out the food residues laterally. It is not necessary to stick to the teeth or gums to provide sufficient friction to push out the food residues, and it is suitable for loose teeth or teeth that have undergone root canal treatment.

[0068] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0069] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0070] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A dental flosser, characterized in that: include: A housing (1) having a cavity therein; A dental floss assembly (2), comprising: - a U-shaped frame (21) which is snap-connected with the housing (1); - a flat dental floss (23), comprising a fixed end and a rotating end, wherein the fixed end is fixedly connected to one side wall of the opening end of the U-shaped frame (21), and the rotating end is rotatably connected to the other side wall of the opening end of the U-shaped frame (21); A driving assembly (3) is disposed in the cavity of the housing (1) and is engaged with the rotating end of the dental floss (23) to drive the rotating end of the dental floss (23) to rotate at a set angle and make the dental floss (23) spiral; the driving assembly (3) comprises: A transmission shaft (31), one end of which is provided with a first bevel gear (311); A driven shaft (32) is arranged perpendicularly to the transmission shaft (31) and is clamped with the rotating end of the flat dental floss (23); a second bevel gear (321) is disposed on the outer sleeve of the driven shaft (32), and the second bevel gear (321) is meshed with the first bevel gear (311); A driving mechanism (33) is connected to the other end of the transmission shaft (31) and is used to drive the transmission shaft (31) to rotate and to cause the driven shaft (32) to rotate by a set angle.

2. The dental flosser according to claim 1, wherein: The driving mechanism (33) comprises a driving gear (331) and a knob (332); the other end of the transmission shaft (31) is provided with a driving gear (312); the driving gear (331) is meshed with the driving gear (312); the knob (332) is connected to the driving gear (331) and is located outside the housing (1) and is used to drive the driving gear (331).

3. The dental flosser according to claim 2, characterized in that: A limiting protrusion (12) is provided on the outer wall of the housing (1), and a limiting member (333) is provided on the knob (332); when the knob (332) is rotated to a set angle, the limiting member (333) abuts against the limiting protrusion (12).

4. The dental flosser according to claim 3, characterized in that: The driven shaft (32) is provided with a hexagonal hole along the axial direction; the rotating end of the flat dental floss (23) is rotatably connected to the U-shaped frame (21) via the rotating shaft (22); the end of the rotating shaft (22) away from the flat dental floss (23) is configured as a hexagonal structure adapted to the hexagonal hole and is clamped with the driven shaft (32).

5. The dental flosser according to claim 4, characterized in that: A positioning groove (322) is provided on the inner wall of the hexagonal hole, and a positioning protrusion (222) which can be engaged with the positioning groove (322) is correspondingly provided on the rotating shaft (22).

6. The dental flosser according to claim 5, characterized in that: A limiting groove (13) is also provided on the outer wall of the housing (1); a protrusion is provided on a side of the limiting member (333) close to the housing (1); the limiting groove (13) is located on the rotation path of the limiting member (333); when the protrusion is engaged with the limiting groove (13), an angle between the positioning groove (322) and the plane where the transmission shaft (31) is located forms a set angle.

7. The dental flosser according to claim 2, wherein: The housing (1) is a rectangular parallelepiped, the transmission shaft (31) is arranged along the length direction of the rectangular parallelepiped, and the knob (332) and the driven shaft (32) are respectively located at two ends of the length direction of the housing (1).

8. The dental flosser according to claim 1, wherein: The housing (1) is provided with an L-shaped avoidance groove for accommodating the U-shaped frame (21); the transmission shaft (31) is rotatably connected to the avoidance groove; and the inner wall of the avoidance groove is provided with a fixing structure for clamping with the U-shaped frame (21).

9. The dental flosser according to claim 8, wherein: Buckles are respectively provided on two adjacent side walls of the avoidance groove, and a clamping groove (211) that is clamped and matched with the buckle is correspondingly provided on the side wall of the U-shaped frame (21).

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