CN115670717A - Dental floss device - Google Patents

Abstract

The invention discloses a dental floss device, which relates to the technical field of tooth cleaning and comprises a shell, a dental floss component and a driving group component, wherein the dental floss component comprises a U-shaped frame body and a flat dental floss, and the U-shaped frame body is clamped with the shell; the flat dental floss comprises a fixed end and a rotating end, wherein the fixed end is fixedly connected with one side wall of the opening end of the U-shaped frame body, and the rotating end is rotatably connected with the other side wall of the opening end of the U-shaped frame body; the driving component is arranged in the cavity of the shell and is clamped with the rotating end of the flat dental floss so as to drive the rotating end of the flat dental floss to rotate for a set angle and enable the flat dental floss to be spiral. Through setting up the flat dental floss to utilize drive assembly to make the flat dental floss rotate and be the heliciform, thereby increase the frictional force between flat dental floss and the tooth gap, clear away the food waste in the tooth gap more easily, can also take out food waste through the flat dental floss of rotation in the tooth gap, solved among the prior art problem that tooth gap waste is difficult to be cleared up and cleaning process harms gum and tooth easily.

Description

Dental floss device

Technical Field

The invention relates to the technical field of tooth cleaning, in particular to a dental floss device.

Background

With the gradual emphasis on oral hygiene and health, the oral cavity is timely cleaned after people eat the oral cavity, and the oral cavity becomes a daily life habit of people. The current commonly used interdental residue cleaner has a flat dental floss, a round dental floss, an interdental brush and a toothpick.

The flat dental floss has a poor cleaning effect for patients with small gaps at the top of teeth and large gaps at the root of teeth and retracted gingiva, and is very unhygienic and unsightly because hands are required to enter the oral cavity for operation; the diameter of the round dental floss is thick, so that the round dental floss is not easy to enter gaps between teeth and is easy to cause gum injury. The hand is required to enter the oral cavity for operation, which is unsanitary and unsightly; although the interdental brush can directly enter from a larger gap at the root of the tooth and does not pass through the top of the tooth with a narrower gap, the interdental brush has too large diameter, cannot clean a small gap and is not easy to enter from the outer side of the posterior tooth; the toothpick is not easy to enter the slit between the teeth, the cleaning is not thorough, the gum is easy to be damaged at the tip, and the action is not elegant; when the dental floss is used, the dental floss needs to be pulled out from the tooth surface, the transverse acting force on the teeth is large, and the teeth subjected to root canal therapy are loosened.

The dental floss rod structure disclosed in application publication No. CN102949246A is characterized in that brush bodies are arranged at two ends of a dental floss, and cleaning parts are arranged around the brush bodies, so that the cleaning capacity of teeth seams is improved, and although the problem of cleaning the teeth seams is solved, the problem that the dental floss needs to be aligned with the teeth seams to be stuffed in the teeth seams is solved, otherwise, the brush body can injure the teeth and gum, and the use is inconvenient; in addition, after the dental floss rod is used up, the dental floss cannot be replaced, and the dental floss rod needs to be discarded completely, so that the use cost is increased.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a dental floss device to solve the problems that residues between teeth are not easy to clean, gums and teeth are easy to be damaged in the cleaning process, and dental floss cannot be replaced in the prior art.

In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:

the present application provides a flosser comprising:

a housing having a cavity therein;

a dental floss assembly, comprising:

-a U-shaped frame, which is snap-fitted to the housing;

-a flat dental floss comprising a fixed end fixedly connected to one side wall of the open end of said U-shaped frame and a rotating end rotatably connected to the other side wall of the open end of said U-shaped frame;

and the driving component is arranged in the cavity of the shell and is clamped with the rotating end of the flat dental floss so as to drive the rotating end of the flat dental floss to rotate for a set angle and enable the flat dental floss to be spiral.

In some optional embodiments, the drive assembly comprises:

one end of the transmission shaft is provided with a first bevel gear;

a driven shaft which is vertically arranged with the driving shaft and is clamped with the rotating end of the flat dental floss, a second bevel gear is sleeved outside the driven shaft, and the second bevel gear is meshed with the first bevel gear;

and a driving mechanism connected to the other end of the transmission shaft, for driving the transmission shaft to rotate and rotating the driven shaft by a set angle.

In some optional embodiments, the driving mechanism includes a driving gear and a knob, the other end of the transmission shaft is provided with a transmission gear, the driving gear is engaged with the transmission gear, and the knob is connected to the driving gear and located outside the housing for driving the driving gear.

In some optional embodiments, a limiting protrusion is disposed on an outer wall of the housing, a limiting member is disposed on the knob, and the limiting member abuts against the limiting protrusion when the knob rotates by a set angle.

In some optional embodiments, the driven shaft is provided with a hexagonal hole along an axial direction, a rotating end of the flat dental floss is rotatably connected with the U-shaped frame through a rotating shaft, and an end of the rotating shaft, which is far away from the flat dental floss, is configured into a hexagonal structure matched with the hexagonal hole and is clamped with the driven shaft.

In some optional embodiments, a positioning groove is formed on an inner wall of the hexagonal hole, and a positioning protrusion capable of being clamped with the positioning groove is correspondingly formed on the rotating shaft.

In some optional embodiments, a limiting groove is further disposed on an outer wall of the housing, a protrusion is disposed on a side of the limiting member close to the housing, the limiting groove is located on a rotation path of the limiting member, and when the protrusion is engaged with the limiting groove, an included angle between the positioning groove and a plane where the transmission shaft is located is a set angle.

In some optional embodiments, the housing is a rectangular parallelepiped, the transmission shaft is disposed along a length direction of the rectangular parallelepiped, and the knob and the driven shaft are respectively located at two ends of the housing in the length direction.

In some optional embodiments, the housing is provided with an L-shaped avoiding groove for placing the U-shaped frame, the transmission shaft is rotatably connected to the avoiding groove, and the inner wall of the avoiding groove is provided with a fixing structure for being clamped with the U-shaped frame.

In some optional embodiments, two adjacent side walls of the avoidance groove are respectively provided with a buckle, and the side wall of the U-shaped frame is correspondingly provided with a clamping groove in clamping fit with the buckle.

Compared with the prior art, the invention has the advantages that: the flat dental floss is arranged, and the rotating end of the flat dental floss is rotated by a set angle by utilizing the driving assembly, so that the flat dental floss is in a spiral shape, the friction force between the flat dental floss and the teeth gap can be increased, and food residues in the teeth gap can be removed more easily; meanwhile, the dental floss component is detachable and replaceable in a clamping connection with the shell, so that the use cost of the dental floss device is reduced, and the problem that the dental floss cannot be replaced after being used and needs to be discarded integrally is solved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of a flosser of the present invention;

FIG. 2 is a schematic view of the connection of the drive assembly to the housing of FIG. 1;

FIG. 3 is a schematic view of the engagement of the drive shaft and the driven shaft of FIG. 2;

FIG. 4 is a schematic view of the dental floss assembly of FIG. 1;

fig. 5 is a schematic bottom view of fig. 1.

In the figure: 1. a housing; 11. a support frame; 12. a limiting bulge; 13. a limiting groove; 14. rotating an arrow; 2. a dental floss assembly; 21. a U-shaped frame body; 211. a card slot; 22. a rotating shaft; 221. an end portion; 222. positioning the projection; 23. flat dental floss; 3. a drive assembly; 31. a drive shaft; 311. a first bevel gear; 312. a transmission gear; 32. a driven shaft; 321. a second bevel gear; 322. a positioning groove; 33. a drive mechanism; 331. a drive gear; 332. a knob; 333. a stopper; 35. a connecting shaft; 4. a damper.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

As shown in fig. 1 and 2, the present application provides a dental floss device, comprising a housing 1, a dental floss assembly 2 and a driving assembly 3, wherein the dental floss assembly 2 is detachably mounted on the housing 1, and the driving assembly 3 is disposed in a cavity of the housing 1 and connected with the dental floss assembly 2 for twisting the flat dental floss 23 on the dental floss assembly 2.

Specifically, the dental floss component 2 comprises a U-shaped frame body 21 and a flat dental floss 23, wherein the U-shaped frame body 21 is clamped with the shell 1; the flat dental floss 23 comprises a fixed end and a rotating end, wherein the fixed end is fixedly connected with one side wall of the opening end of the U-shaped frame 21, and the rotating end is rotatably connected with the other side wall of the opening end of the U-shaped frame 21; the driving component 3 is arranged in the cavity of the shell 1 and is clamped with the rotating end of the flat dental floss 23 so as to drive the rotating end of the flat dental floss 23 to rotate for a set angle and enable the flat dental floss 23 to be in a spiral shape.

It can be understood that the U-shaped frame 21 is detachably connected to the housing 1 by a snap-fit connection, and when the U-shaped frame 21 is mounted on the housing 1 and the driving assembly 3 is operated, the driving assembly 3 rotates the rotating end of the flat dental floss 23 by a set angle. Because the fixed end of the flat dental floss 23 is fixedly connected with the U-shaped frame 21, the flat dental floss 23 can be spirally driven by the driving component 3. The flat dental floss 23 is made of a material having a certain elastic deformation recovery capability, and specifically, may be made of a natural rubber or a synthetic rubber having a large flexibility, and may be formed by using 1 or more than 2 kinds selected from Latex (Latex), ethylene Propylene Diene Monomer (EPDM), styrene Ethylene Butadiene Styrene (SEBS), butyl rubber, polyurethane rubber, silicone rubber, copolyester, polyamide, and the like, for example, but not limited thereto.

The purpose that sets up like this is, on the one hand, the flat dental floss 23 that is the heliciform has more contact surface, can be better clearance the food waste in the slit, and on the other hand, can make the food waste attached to the tooth be carried out by scraping off through rotatory flat dental floss 23 in the slit, compares traditional dental floss, and the clearance effect is better.

In some alternative embodiments, the driving assembly 3 includes a transmission shaft 31, a driven shaft 32 and a driving mechanism 33, one end of the transmission shaft 31 is provided with a first bevel gear 311; the driven shaft 32 is set up vertically with the above-mentioned drive shaft 31 and with the rotating end of the above-mentioned flat dental floss 23 of joint, the overcoat of the above-mentioned driven shaft 32 has the second bevel gear 321, the above-mentioned second bevel gear 321 engages with above-mentioned first bevel gear 311; the driving mechanism 33 is connected to the other end of the transmission shaft 31 for driving the transmission shaft 31 to rotate by a predetermined angle.

In a specific operation, the driving shaft 31 is rotated by the driving mechanism 33, and the driven shaft 32 is driven by the driving shaft 31 to rotate under the action of the first bevel gear 311 and the second bevel gear 321 which are vertically arranged and rotationally connected, so that the rotating end of the flat dental floss 23 rotates for a set angle.

In this case, the driving shaft 31 is disposed along the length direction of the housing 1, the driven shaft 32 is disposed perpendicular to the driving shaft 31, and the first bevel gear 311 is engaged with the second bevel gear 321 to convert the rotation of the driving shaft 31 into the rotation of the driven shaft 32, thereby changing the driving direction and driving the rotation end of the flat dental floss 23 to rotate.

In some alternative embodiments, as shown in fig. 3, a support bracket 11 is further disposed in the cavity of the housing 1 for abutting against a 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 housing 1 and prevent the first bevel gear 311 from being displaced when engaged with the second bevel gear 321 to cause connection failure.

Optionally, the driving mechanism 33 may be a rotating handle sleeved at the other end of the transmission shaft 31 and located outside the housing 1, or a driving motor, and an output end of the driving motor is connected to the other end of the transmission shaft 31 to drive the transmission shaft 31 to rotate.

In some alternative 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 engaged with the transmission gear 312, and the knob 332 is connected to the driving gear 331 and located outside the housing 1 for driving the driving gear 331.

In this embodiment, the knob 332 is disposed outside the housing 1 and is connected to the driving gear 331 through the connecting shaft 35, so as to drive the driving gear 331 to rotate, and 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 rotating the knob 332.

Preferably, the transmission ratio of the driving gear 331 to the transmission gear 312 is 3. It can be understood that the transmission ratio of the driving gear 331 and the transmission gear 312 is the diameter ratio of the driving gear 331 and the transmission gear 312, and the diameter of the driving gear 331 is set to be larger than the diameter of the transmission gear 312, so that the knob 332 can be rotated by a smaller angle, i.e. the transmission shaft 31 can be rotated by a larger angle, and the operation is time-saving and labor-saving.

As shown in fig. 5, in some alternative embodiments, a limiting protrusion 12 is disposed on an outer wall of the housing 1, a limiting member 333 is disposed on the knob 332, and the limiting member 333 abuts against the limiting protrusion 12 when the knob 332 rotates a set angle.

It will be understood that the limiting protrusion 12 is used to limit the rotation angle of the knob 332 relative to the housing 1, so as to make the transmission shaft 31 rotate a set angle, i.e. stop rotating, and to keep the flat dental floss 23 in a spiral state required for use.

In this example, the limiting protrusion 12 is disposed on the outer wall of the housing 1 near the knob 332, the limiting member 333 is disposed on the arc-shaped outer side wall of the knob 332, and the limiting protrusion 12 is located on the rotation path of the limiting member 333, so that when the knob 332 rotates for a set angle, the limiting protrusion 12 blocks the limiting member 333 from further rotating along the direction.

In some alternative embodiments, 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 through a 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.

In order to enable the driven shaft 32 to be clamped with the rotating end of the flat dental floss 23 and drive the rotating end to rotate, 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 clamped with the driven shaft 32 through a hexagonal end part 221. In other embodiments, the driven shaft 32 and the rotating shaft 22 can be engaged with each other by other methods, and are not limited herein. In this example, the insertion mounting is facilitated by the hexagonal configuration of the end 221 of the shaft 22 engaging the hex socket.

Furthermore, a positioning groove 322 is disposed on the inner wall of the hexagonal hole, and a positioning protrusion 222 capable of connecting with the positioning groove 322 is correspondingly disposed on the rotating shaft 22.

It can be understood that the positioning groove 322 and the positioning protrusion 222 are provided to make the U-shaped frame 21 and the housing 1 form a set angle when the U-shaped frame 21 is engaged with the hexagonal hole through the rotating shaft 22.

As shown in fig. 4, in some alternative embodiments, a limiting groove 13 is further disposed on an outer wall of the housing 1, a protrusion is disposed on a side of the limiting member 333 close to the housing 1, the limiting groove 13 is located on a rotation path of the limiting member 333, and when the protrusion is engaged with the limiting groove 13, the positioning groove 322 forms a set angle with the transmission shaft 31.

In specific operation, before the dental floss assembly 2 is installed, the knob 332 is rotated in the positive direction to clamp the protrusion of the limiting part 333 in the limiting groove 13, at this time, the included 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, 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 clamped and matched with the positioning protrusion 222, at this time, the U-shaped frame 21 forms an included angle with the housing 1, and the flat dental floss 23 is in an initial state, that is, kept flat. When the U-shaped frame 21 is rotated to make the U-shaped frame 21 rotate around the rotating shaft 22 and be in the same plane with the housing 1, the rotating end of the flat dental floss 23 rotates together to make the flat dental floss 23 take a spiral shape, and at this time, the knob 332 rotates in the opposite direction under the rotation of the rotating shaft 22, and the protrusion moves out of the limiting groove 13.

It can be seen that the limiting groove 13 and the protrusion are provided to reserve a rotation angle for the U-shaped frame 21 to rotate to the predetermined position when the protrusion is engaged in the limiting groove 13.

In this embodiment, after the knob 332 is rotated in the opposite direction by a set angle, the limiting member 333 abuts against the limiting protrusion 12 to prevent the knob 332 from rotating by an excessively large angle.

Preferably, the limiting groove 13 is provided with an arc-shaped buffer part along the rotation direction of the protrusion, so that the protrusion can move into or out of the limiting groove 13 when rotating.

In some optional embodiments, a damper 4 is further disposed on the inner wall of the housing 1, and the damper 4 is connected to the connecting shaft 35 for controlling the rotation of the driving gear 331 so as to prevent the flat dental floss 23 from being twisted and broken due to the excessive rotation of the driving gear 331.

In some alternative embodiments, the housing 1 is a rectangular parallelepiped, the transmission shaft 31 is disposed along a longitudinal direction of the rectangular parallelepiped, and the knob 332 and the driven shaft 32 are respectively located at two ends of the housing 1 in the longitudinal direction.

Set up casing 1 to the cuboid, be convenient for hold and use the dental floss ware, drive driven shaft 32 and rotate when making knob 332 rotate through transmission shaft 31.

In some optional embodiments, the housing 1 is provided with an L-shaped avoiding groove for placing the U-shaped frame 21, the transmission shaft 31 is rotatably connected to the L-shaped avoiding groove, and an inner wall of the L-shaped avoiding groove is provided with a fixing structure for being clamped with the U-shaped frame 21.

As shown in fig. 2, in this example, the L-shaped avoidance groove is located at one end of the rectangular parallelepiped housing 1 in the longitudinal direction, and the transmission shaft 31 is rotatably connected to a side wall of the L-shaped avoidance groove in the longitudinal direction. The two adjacent side walls of the L-shaped avoiding groove are provided with buckles, the outer side wall of the U-shaped frame body 21 is correspondingly provided with a clamping groove 211 matched with the buckles in a clamping manner, the U-shaped frame body 21 and the shell 1 are matched with each other through the clamping of the clamping piece and the clamping groove 211 to realize detachable connection, and therefore the dental floss component 2 is convenient to replace.

In this embodiment, the locking groove 211 is an avoiding groove, and when the rotating shaft 22 is locked with the driven shaft 32 and the U-shaped frame 21 is rotated to a predetermined position, the locking member is locked with the locking groove 211.

In some alternative embodiments, the outer wall of the housing 1 near the knob 332 is further marked with a rotation arrow 14, the direction of the rotation arrow 14 is the same as the above-mentioned reverse direction, so that the user can easily recognize the rotation direction of the knob 332 to control and adjust the twist of the floss string 23.

The working principle of the embodiment of the application is as follows: the knob 332 is turned in the positive direction to engage the protrusion of the limiting member 333 with the limiting groove 13, at this time, the angle between the positioning groove 322 on the inner wall of the hexagonal hole and the plane of the transmission shaft 31 is a predetermined angle, then the rotating shaft 22 is inserted into the hexagonal hole to engage the positioning groove 322 with the positioning protrusion 222, at this time, the U-shaped frame 21 and the housing 1 form an angle, and the flat dental floss 23 is in the initial state, i.e., it is kept flat. The U-shaped frame body 21 is rotated to enable the U-shaped frame body 21 to rotate by taking the rotating shaft 22 as an axis, and the U-shaped frame body 21 and the shell 1 are detachably connected through the clamping matching of the clamping piece and the clamping groove 211. At this time, the rotation end of the flat dental floss 23 rotates with the rotation of the U-shaped frame 21, so that the flat dental floss 23 is in a spiral shape, and at this time, the knob 332 rotates in the opposite direction under the rotation of the rotating shaft 22, and the protrusions move out of the limiting grooves 13 and stop rotating after abutting against the limiting protrusions 12. The U-shaped frame body 21 is arranged on the L-shaped avoiding groove of the shell 1, and then the knob 332 is rotated towards the positive direction to enable the protrusion to be clamped into the limiting groove 13, so that the spiral state of the flat dental floss 23 is relieved, and the flat dental floss 23 is restored to the initial state, and is convenient to be stuffed between dental seams. After the flat dental floss 23 is stuffed in the slit, the knob 332 is rotated in the opposite direction to make the flat dental floss 23 take the shape of a helix, at this time, the dental floss can be moved along the length direction of the flat dental floss 23 to take out the residue in the slit, or the knob 332 is rotated alternately in the positive direction and the opposite direction to make the flat dental floss 23 rotate in the slit, thereby removing the residue in the slit. After cleaning, the knob 332 is rotated to clamp the protrusion into the limiting groove 13, and the flat dental floss 23 is restored to the initial state, and then can be taken out from the slit between the teeth.

According to the dental floss device, one end of the flat dental floss is fixed, the other end of the flat dental floss is rotatably connected to the U-shaped frame, and the rotating end is driven to rotate by the driving assembly positioned in the shell, so that the flat dental floss can rotate spirally, the contact area between the flat dental floss and food residues in slits between teeth is increased, the friction force is improved, and the cleaning effect is better; by utilizing the matching 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 the rotation in different directions is realized; by arranging the driving gear with the larger diameter and the transmission gear with the smaller diameter, the transmission shaft can be driven to rotate by a larger angle by rotating the knob by a smaller angle, so that time and labor are saved; the shell is provided with the limiting bulge and abuts against the limiting part of the knob, so that the rotation angle of the knob is limited, and the flat dental floss is prevented from being broken due to excessive rotation turns caused by overlarge rotation angle of the knob; through hexagonal hole and pivot joint cooperation to set up positioning groove and location arch in hexagonal hole and pivot, thereby when injecing the installation of U type frame and the casing between the angle, cooperation spacing groove and arch make flat dental floss can switch between initial condition and heliciform, convenient to use person operates. The utility model provides a dental floss ware, not only easy operation and the removable use of dental floss subassembly utilize the rotatory distortion of flat dental floss, and food waste's frictional force in the increase slit between the teeth is convenient for transversely pull out food waste, needn't hug closely tooth or gum just can provide sufficient frictional force and release food waste like traditional dental floss, is fit for not hard up or the tooth after the root canal therapy.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A flosser, comprising:

a housing (1) having a cavity therein;

a dental floss assembly (2) comprising:

-a U-shaped frame (21) which is snap-fitted with the housing (1);

-a flat dental floss (23) comprising a fixed end fixedly connected with one side wall of the open end of the U-shaped frame (21) and a rotating end rotatably connected with the other side wall of the open end of the U-shaped frame (21);

the driving component (3) is arranged in the cavity of the shell (1) and is clamped with the rotating end of the flat dental floss (23) so as to drive the rotating end of the flat dental floss (23) to rotate for a set angle and enable the flat dental floss (23) to be spiral.

2. The flosser of claim 1 wherein the drive assembly (3) comprises:

a transmission shaft (31) one end of which is provided with a first bevel gear (311);

the driven shaft (32) is vertically arranged with the driving shaft (31) and is clamped with the rotating end of the flat dental floss (23), a second bevel gear (321) is sleeved outside the driven shaft (32), and the second bevel gear (321) is meshed with the first bevel gear (311);

and the driving mechanism (33) is connected with the other end of the transmission shaft (31) and is used for driving the transmission shaft (31) to rotate and enabling the driven shaft (32) to rotate by a set angle.

3. The dental floss device as claimed in claim 2, 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 transmission gear (312), the driving gear (331) is engaged with the transmission gear (312), and the knob (332) is connected with the driving gear (331) and located outside the housing (1) for driving the driving gear (331).

4. The dental floss device as claimed in claim 3, wherein a limiting protrusion (12) is provided on an outer wall of the housing (1), a limiting member (333) is provided on the knob (332), and the limiting member (333) abuts against the limiting protrusion (12) when the knob (332) is rotated by a set angle.

5. The dental floss device as claimed in claim 4, wherein 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 with the U-shaped frame body (21) through a rotating shaft (22), and the end of the rotating shaft (22) far away from the flat dental floss (23) is configured into a hexagonal structure matched with the hexagonal hole and clamped with the driven shaft (32).

6. The dental floss device as claimed in claim 5, wherein a positioning groove (322) is provided on an inner wall of the hexagonal hole, and a positioning protrusion (222) capable of being engaged with the positioning groove (322) is correspondingly provided on the rotation shaft (22).

7. The dental floss device as claimed in claim 6, wherein a limiting groove (13) is further formed in the outer wall of the housing (1), a protrusion is formed on one side of the limiting member (333) close to the housing (1), the limiting groove (13) is located on a rotation path of the limiting member (333), and when the protrusion is engaged with the limiting groove (13), an included angle between the positioning groove (322) and a plane where the transmission shaft (31) is located is a set angle.

8. The dental floss device as claimed in claim 3, wherein the housing (1) is a rectangular parallelepiped, the transmission shaft (31) is arranged along a length direction of the rectangular parallelepiped, and the knob (332) and the driven shaft (32) are respectively located at two ends of the housing (1) in the length direction.

9. The dental floss device as claimed in claim 2, wherein the housing (1) is provided with an L-shaped avoiding groove for placing the U-shaped frame (21), the transmission shaft (31) is rotatably connected to the avoiding groove, and the inner wall of the avoiding groove is provided with a fixing structure for being connected with the U-shaped frame (21) in a clamping manner.

10. The dental floss device as claimed in claim 9, wherein two adjacent side walls of the avoiding groove are respectively provided with a buckle, and the side wall of the U-shaped frame body (21) is correspondingly provided with a clamping groove (211) matched with the buckle in a clamping manner.

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