A self-cleaning disposable floss pick

By designing a Y-shaped structure and gear meshing system for self-cleaning dental floss picks, the problem of residual plaque after use is solved, enabling automatic winding and unwinding, thus improving cleaning efficiency and oral health safety.

CN224540351UActive Publication Date: 2026-07-24HULUNBEIER FEIXIANG STOMATOLOGICAL HOSPITAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HULUNBEIER FEIXIANG STOMATOLOGICAL HOSPITAL CO LTD
Filing Date
2025-08-26
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing dental floss picks cannot effectively remove residual plaque after use, resulting in poor cleaning and potential oral health risks.

Method used

A self-cleaning disposable dental floss pick has been designed, featuring a Y-shaped lower and upper shell structure, including a winding tube and a floss delivery tube. Automatic winding and unwinding of dental floss is achieved through gear meshing. Combined with a toothpick tip and insert structure, it ensures stable connection and flexible use of the toothpick tip.

Benefits of technology

It achieves the self-cleaning function of dental floss picks, saving time, preventing oral health threats, avoiding cross-infection of bacteria, and improving the convenience and safety of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a disposable dental floss stick of self -cleaning, including Y type lower shell, the cavity is seted up in Y type lower shell, the top recessed surface both sides of Y type lower shell are seted up the wire hole, the internal space of wire hole and the internal space of cavity intercommunication, the one end of cavity is seted up and enters the wire recess, the other end of cavity is seted up and goes out the wire recess, through setting up winding pipe, can carry out winding to the dental floss after using, through setting up the wire pipe, can slowly put out the unused dental floss, the gear outer wall one end of in the wire recess stretches out Y type lower shell, the user can rotate the gear, when the gear rotates, another set of gear also will follow together rotating, at this moment winding pipe will carry out winding to the dental floss after using, and simultaneously the wire pipe will slowly put out the unused dental floss, thereby will transport the unused dental floss to the working end, whole operation process not only saves time, simultaneously also avoids the threat to oral cavity health, prevents the cross infection of different site oral cavity bacteria.
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Description

Technical Field

[0001] This utility model relates to the field of dental floss picks, and in particular to a self-cleaning disposable dental floss pick. Background Technology

[0002] Dental floss picks mainly consist of three parts: the floss head, the handle, and the toothpick at the end. The floss head usually features a double-floss design, made of a smooth and high-tensile-strength material, which can more effectively pick up food residue between teeth. The handle is designed with anti-slip ridges to improve grip stability. Some products also adopt ergonomic optimizations, such as a 45-degree adjustable floss head, which makes it easier to clean the molar area. The toothpick at the end has a rounded structure to avoid damaging the gums.

[0003] The following problems exist: In daily life, people often use disposable dental floss picks to clean their teeth, especially after meals. After cleaning a tooth with a disposable dental floss pick, a lot of plaque remains on it. The traditional method is to take the dental floss pick to the bathroom and rinse it while using it, or wipe it with a tissue or wet wipe so that it can be reused. However, this method is not only time-consuming, but also cannot ensure that the plaque on the surface of the dental floss pick is completely removed. This not only affects the cleaning effect, but may also pose a potential threat to oral health, and easily lead to cross-infection of oral bacteria at different sites. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A self-cleaning disposable dental floss pick includes a Y-shaped lower shell with a cavity. Both sides of the concave top surface of the Y-shaped lower shell have floss holes that communicate with the interior space of the cavity. One end of the cavity has an inlet groove, and the other end has an outlet groove. The interior spaces of the inlet groove and outlet groove communicate with each other. A first shaft is fixedly connected to one end of the inner wall of the inlet groove, and a second shaft is fixedly connected to one end of the inner wall of the outlet groove. A take-up tube is rotatably connected to the outer wall of the first shaft, and an outlet tube is rotatably connected to the outer wall of the second shaft. Gears are fixedly connected to one end of the outer walls of both the take-up tube and the outlet tube, and the teeth of the two sets of gears mesh with each other.

[0007] As a further description of the above technical solution:

[0008] A toothpick tip is fitted onto the bottom of the inner wall of the cavity, and one end of the toothpick tip has a through-hole.

[0009] As a further description of the above technical solution:

[0010] Both outer walls of the Y-shaped lower shell are fixedly connected with locking blocks. A Y-shaped upper shell is installed at the front end of the Y-shaped lower shell. Both outer walls of the Y-shaped upper shell are fixedly connected with levers. Each lever has a locking groove, and the inner wall of the locking groove engages with the outer wall of the locking block.

[0011] As a further description of the above technical solution:

[0012] One end of the Y-shaped upper shell has a through-hole No. 1, and the other end of the Y-shaped upper shell has a through-hole No. 2.

[0013] As a further description of the above technical solution:

[0014] A baffle is fixedly connected to the front end of the take-up tube, and the outer wall of the baffle is fitted inside the first circular hole.

[0015] As a further description of the above technical solution:

[0016] The front end of the outlet tube is fixedly connected to a ratchet, and the outer wall of the ratchet is fitted inside the second circular hole.

[0017] As a further description of the above technical solution:

[0018] The bottom end of the Y-shaped upper shell is fixedly connected to a insert, the outer wall of the insert is inserted into the inner wall of the insertion hole, and a baffle is fixedly connected to the inner wall of the second circular hole.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] (1) By setting up a take-up tube, the used dental floss can be taken up. By setting up a feed tube, the unused dental floss can be slowly released. One end of the gear in the feed groove extends out of the Y-shaped lower shell. The user can rotate the gear. When the gear rotates, another set of gears will also rotate. At this time, the take-up tube will take up the used dental floss, and the feed tube will slowly release the unused dental floss, thereby transporting the unused dental floss to the working end. The whole operation process not only saves time, but also avoids threats to oral health and prevents cross-infection of oral bacteria at different sites.

[0021] (2) By setting toothpick tips, the overall flexibility of the dental floss pick can be improved. By setting a simple connection between the toothpick tips and the cavity, the toothpick tips can be easily and quickly disassembled and assembled. By setting a connection structure between the insert and the insertion hole, the toothpick tips can be fixed in the cavity, thereby preventing the toothpick tips from falling off. The baffle has the characteristic of being able to bend, and its top can contact the tooth groove on the outer wall of the ratchet. At this time, the ratchet can only rotate in one direction. When the pawl on the outer wall of the ratchet contacts the baffle, it will cause the baffle to bend instantly. When the pawl is removed from the baffle, the baffle will instantly return to its original shape. When the ratchet rotates in another direction, the baffle will fix the ratchet. When the gear on the outer wall of the floss tube is pressed by the user's thumb, the dental floss will also be fixed. Attached Figure Description

[0022] Figure 1 This is a three-dimensional view of the present invention;

[0023] Figure 2 This is a front view of the present invention;

[0024] Figure 3 This is a front sectional view of the present invention.

[0025] The correspondence between the labels and component names in the attached figures is as follows:

[0026] 1. Y-shaped lower shell; 2. Cavity; 3. Cable hole; 4. Cable inlet groove; 5. Cable outlet groove; 6. First shaft; 7. Second shaft; 8. Rewind tube; 9. Cable outlet tube; 10. Gear; 11. Toothpick tip; 12. Insertion hole; 13. Locking block; 14. Y-shaped upper shell; 15. Paddle; 16. Locking slot; 17. No. 1 round hole; 18. No. 2 round hole; 19. Stop plate; 20. Ratchet; 21. Insert plate; 22. Stop plate. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. The present invention provides the following embodiments.

[0030] Reference Figure 1-3 This utility model provides an embodiment of a self-cleaning disposable dental floss pick, comprising a Y-shaped lower shell 1, a cavity 2 extending vertically through the entire Y-shaped lower shell 1, primarily used for floss delivery. Floss holes 3 are provided on both sides of the concave top surface of the Y-shaped lower shell 1, and the internal space of the floss holes 3 communicates with the internal space of the cavity 2. Dental floss extends from one set of floss holes 3 and then enters through the other set of floss holes 3. An inlet groove 4 is provided at one end of the cavity 2, and an outlet groove is provided at the other end of the cavity 2. 5. The internal space of the inlet groove 4 and the internal space of the outlet groove 5 are interconnected. A first shaft 6 is fixedly connected to one end of the inner wall of the inlet groove 4, and a second shaft 7 is fixedly connected to one end of the inner wall of the outlet groove 5. The first shaft 6 and the second shaft 7 have the same height. A take-up tube 8 is rotatably connected to the outer wall of the first shaft 6. By setting the take-up tube 8, the used dental floss can be taken up. An outlet tube 9 is rotatably connected to the outer wall of the second shaft 7. By setting the outlet tube 9, the unused dental floss can be slowly released.

[0031] Gears 10 are fixedly connected to one end of the outer wall of both the take-up tube 8 and the outlet tube 9. The teeth of the two sets of gears 10 mesh with each other. It is worth noting that one end of the outer wall of the gear 10 in the outlet groove 5 extends out of the Y-shaped lower shell 1. The user can rotate the gear 10. When the gear 10 rotates, the other set of gears 10 will also rotate. At this time, the take-up tube 8 will take up the used dental floss, and the outlet tube 9 will slowly release the unused dental floss. A toothpick tip 11 is sleeved at the bottom of the inner wall of the cavity 2. By setting the toothpick tip 11, the flexibility of the dental floss pick can be improved. By setting the simple connection between the toothpick tip 11 and the cavity 2, the disassembly and assembly of the toothpick tip 11 is more convenient and quick. One end of the toothpick tip 11 has a through-hole 12. Both outer walls of the Y-shaped lower shell 1 are fixedly connected with locking blocks 13.

[0032] A Y-shaped upper shell 14 is installed at the front end of the Y-shaped lower shell 1. Both outer walls of the Y-shaped upper shell 14 are fixedly connected to paddles 15. Each paddle 15 has a slot 16, the inner wall of which engages with the outer wall of the locking block 13. The paddles 15 are bendable. By setting the connection structure between the slots 16 and the locking block 13, the Y-shaped upper shell 14 can be fixed to the Y-shaped lower shell 1. Simultaneously moving the bottom ends of both paddles 15 in opposite directions allows the locking block 13 to be moved quickly. The Y-shaped upper shell 14 and the Y-shaped lower shell 1 can then be separated. One end of the Y-shaped upper shell 14 has a first circular hole 17 that runs through the front and back, and the other end of the Y-shaped upper shell 14 has a second circular hole 18 that runs through the front and back. The front end of the take-up tube 8 is fixedly connected to a baffle 19, which rotates with the take-up tube 8. By setting the baffle 19, the take-up wire can be blocked and limited. The outer wall of the baffle 19 is fitted inside the first circular hole 17.

[0033] A ratchet 20 is fixedly connected to the front end of the outlet tube 9. The ratchet 20 rotates with the outlet tube 9. The outer wall of the ratchet 20 is fitted inside the second circular hole 18. A insert 21 is fixedly connected to the bottom end of the Y-shaped upper shell 14. The outer wall of the insert 21 is inserted into the inner wall of the insertion hole 12. By setting the connection structure between the insert 21 and the insertion hole 12, the toothpick tip 11 can be fixed in the cavity 2, thereby preventing the toothpick tip 11 from falling off. A baffle 22 is fixedly connected to the inner wall of the second circular hole 18. The plate 22 has the characteristic of being able to bend, and its tip can contact the tooth groove on the outer wall of the ratchet 20. At this time, the ratchet 20 can only rotate in one direction. When the pawl on the outer wall of the ratchet 20 contacts the plate 22, it will cause the plate 22 to bend instantly. When the pawl disengages from the plate 22, the plate 22 will instantly return to its original shape. When the ratchet 20 rotates in another direction, the plate 22 will fix the ratchet 20. When the gear 10 on the outer wall of the cable tube 9 is pressed by the user's thumb, the dental floss will also be fixed.

[0034] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A self-cleaning disposable dental floss pick, comprising a Y-shaped lower shell (1), characterized in that: The Y-shaped lower shell (1) has a cavity (2). The top concave surface of the Y-shaped lower shell (1) has wire holes (3) on both sides. The internal space of the wire holes (3) is connected to the internal space of the cavity (2). One end of the cavity (2) has an inlet groove (4) and the other end of the cavity (2) has an outlet groove (5). The internal space of the inlet groove (4) is connected to the internal space of the outlet groove (5). One end of the inner wall of the inlet groove (4) is fixedly connected to a first shaft (6). One end of the inner wall of the outlet groove (5) is fixedly connected to a second shaft (7). The outer wall of the first shaft (6) is rotatably connected to a take-up tube (8). The outer wall of the second shaft (7) is rotatably connected to an outlet tube (9). One end of the outer wall of both the take-up tube (8) and the outlet tube (9) is fixedly connected to a gear (10). The teeth of the two sets of gears (10) mesh with each other.

2. The self-cleaning disposable dental floss pick according to claim 1, characterized in that: The bottom of the inner wall of the cavity (2) is fitted with a toothpick tip (11), and one end of the toothpick tip (11) has a through-hole (12).

3. The self-cleaning disposable dental floss pick according to claim 2, characterized in that: Both sides of the Y-shaped lower shell (1) are fixedly connected with locking blocks (13). A Y-shaped upper shell (14) is installed at the front end of the Y-shaped lower shell (1). Both sides of the Y-shaped upper shell (14) are fixedly connected with levers (15). Each lever (15) has a slot (16) in it. The inner wall of each slot (16) is engaged with the outer wall of the locking block (13).

4. The self-cleaning disposable dental floss pick according to claim 3, characterized in that: One end of the Y-shaped upper shell (14) is provided with a first circular hole (17) that runs through the front and back, and the other end of the Y-shaped upper shell (14) is provided with a second circular hole (18) that runs through the front and back.

5. A self-cleaning disposable dental floss pick according to claim 4, characterized in that: The front end of the take-up tube (8) is fixedly connected to a baffle (19), and the outer wall of the baffle (19) is fitted inside the first circular hole (17).

6. A self-cleaning disposable dental floss pick according to claim 4, characterized in that: The front end of the outlet tube (9) is fixedly connected to a ratchet (20), and the outer wall of the ratchet (20) is fitted inside the second circular hole (18).

7. A self-cleaning disposable dental floss pick according to claim 6, characterized in that: The bottom end of the Y-shaped upper shell (14) is fixedly connected to a insert (21), the outer wall of the insert (21) is inserted into the inner wall of the insertion hole (12), and the inner wall of the second round hole (18) is fixedly connected to a baffle (22).