Oral care instrument

Abstract

The utility model discloses an oral care instrument, relates to the related field of oral care, and aims to solve the problems that in the prior art, the overall length of a care structure is relatively long, and a care head is always exposed outside, so that the care head is easy to break when falling or being collided by external force. An inner nursing unit is arranged in the outer protective shell and comprises a driving assembly, the driving assembly comprises a sliding block, a connecting column is slidably connected to the middle of the sliding block, and the outer portion of the connecting column extends outwards and is fixedly provided with an outer pressing plate; the interior of the connecting column extends into the outer protective shell and is fixedly provided with an inner fixing block, and a pressure spring is arranged between the inner fixing block and the sliding block along the exterior of the connecting column. The front end and the rear end of the outer end of the inner fixing block are integrally connected with extending shoulder parts, limiting blocks are fixed to the two sides, along the extending shoulder parts, of the inner wall of the outer protection shell, a limiting interval is formed between the multiple limiting blocks on each side, and the extending shoulder parts are clamped in the limiting intervals.

Description

Technical Field

[0001] This utility model relates to the field of oral care, specifically to an oral care device. Background Technology

[0002] The oral cavity is an important part of the human body, serving not only as the entrance to the digestive system but also playing vital roles in chewing, swallowing, speech, and breathing. Furthermore, oral health is directly linked to overall health, acting as a mirror reflecting the body's overall condition. Oral diseases such as tooth decay, periodontal disease, and oral ulcers not only affect a patient's quality of life but can also trigger a series of systemic diseases, such as cardiovascular disease and diabetes. Therefore, oral care is crucial for maintaining personal health. Traditional oral care methods mainly include brushing, rinsing, and flossing. These methods can, to some extent, remove food debris, plaque, and tartar from the mouth, preventing the occurrence of oral diseases.

[0003] With the continuous development of oral medicine, oral care instruments are also evolving rapidly. From the initial toothbrushes and dental floss to later electric toothbrushes, water flossers, and oral irrigators, the types and functions of oral care instruments have been continuously enriched and improved. These instruments, through different working principles such as mechanical vibration and water rinsing, can more effectively clean the oral cavity and improve the effect of oral care. For example, the Chinese authorized patent with publication number CN 209464113 U (an oral care device) includes a brush handle body and a brush head. The lower part of the brush handle body is equipped with a cleaning fluid suction device, the upper part of which passes through the upper part of the brush handle body. The upper part of the brush handle body is equipped with a flexible tube, and a transmission mechanism is installed inside the flexible tube. The lower part of the transmission mechanism is connected to the output end of a motor, and the upper part of the transmission mechanism is connected to the brush head. This utility model can realize the angle adjustment of the device, can provide comprehensive oral care, eliminate cleaning dead corners, and is convenient for medical personnel to use, reducing the difficulty of their work and improving work efficiency.

[0004] Although the aforementioned existing technology has the function of oral cleaning and care, the overall length of the care structure is relatively long, and the care head is always exposed, making it easy to break when dropped or impacted by external force. Utility Model Content

[0005] The purpose of this utility model is to provide an oral care device to solve the problem mentioned in the background art that the overall length of the care structure is too long and the care head is always exposed, making it easy to break when it falls or is impacted by external force.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an oral care device, comprising an outer protective shell, wherein rectangular through slots are provided at the upper and lower ends of the outer surface of the outer protective shell, and an inner care unit is provided inside the outer protective shell. The inner care unit includes a drive assembly, two of which are symmetrically arranged vertically. Each drive assembly includes a sliding block, which slides along the rectangular through slots. A connecting post is slidably connected to the middle of the sliding block. An outer pressure plate is fixed to the outer side of the connecting post, and an inner fixing block is fixed to the inner side of the connecting post extending into the outer protective shell. A pressure spring is provided between the inner fixing block and the sliding block along the outer side of the connecting post. An extended shoulder is integrally connected to both the front and rear ends of the outer end of the inner fixing block. Limiting blocks are fixed to both sides of the extended shoulder on the inner wall of the outer protective shell. The height of the portion of the limiting block that contacts the extended shoulder is less than the sliding height of the connecting post. A limiting interval is formed between multiple limiting blocks on each side, and the extended shoulder is engaged within the limiting interval.

[0007] Preferably, a fixing rod is fixed at both the front and rear ends of the inner fixed block, an outer limiting plate is provided between the two driving components, the other end of the fixing rod extends into the outer limiting plate and is telescopically connected to the outer limiting plate, an outer fixing plate is fixed on the outer side of the outer limiting plate, and an inner protective shell is fixed in the center on the other side of the outer fixing plate.

[0008] Preferably, a micro motor is installed at one end inside the inner protective housing. The output shaft of the micro motor is connected to a first linkage rod. The other end of the first linkage rod is rotatably connected to a second linkage rod via a shaft. The other end of the second linkage rod extends into the bearing seat and is rotatably connected to the bearing seat via a shaft. A connecting block is fixed to the outer end of the bearing seat. A connecting rod is fixed in the center of the other end of the connecting block. The other end of the connecting rod extends outward to the outside of the inner protective housing.

[0009] Preferably, an external thread is fixed on the other side of the outer protective shell, and an outer protective cover is connected to the external thread of the external thread.

[0010] Preferably, the two ends of the sliding block are integrally connected with limit strips, and the two ends of the rectangular through groove are provided with sliding limit grooves. The limit strip slides along the sliding limit grooves. The outer surface of the outer protective shell is provided with external anti-slip textures along the space between the two rectangular through grooves, the outer end face of the outer pressure plate, and the outer surface of the outer protective cover.

[0011] Preferably, an inner limiting groove is provided on the inner wall of the inner protective shell at a position corresponding to the connecting block, and the connecting block slides along the inner limiting groove.

[0012] Preferably, the end of the connecting rod away from the inner protective shell is connected to a nursing head, and the end face of the outer protective shell has an extension slot larger than the size of the nursing head.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In this utility model, when not in use, the connecting rod and the nursing head are retracted into the outer protective shell, the length of the whole device is relatively short, and it is not easy to break. This solves the problem that the overall length of the nursing structure is long and the nursing head is always exposed, making it easy to break when it falls or is hit by external force. When it is needed, pressing the outer pressure plate with two fingers can drive the connecting rod and the nursing head to extend to the normal length for use, thus making it convenient to use.

[0015] (2) In this utility model, pressing the outer pressure plate with two fingers causes the inner fixing block and the extended shoulder to move inward, and the extended shoulder disengages from the limiting area formed by multiple limiting blocks on one side; while pressing, the outer pressure plate is pushed to slide along the rectangular through groove until it moves to the other end of the rectangular through groove, at which point the outer pressure plate is released, and under the reset action of the pressure spring, the outer pressure plate, the inner fixing block and the extended shoulder move outward, and the extended shoulder is locked into the limiting area formed by multiple limiting blocks on the other side, thus completing the fixation. The innovative sliding buckle fixing method makes the position adjustment of the nursing head simple and quick.

[0016] (3) In this utility model, the micro motor drives the first linkage rod to rotate, pulls the second linkage rod to rotate, and pulls the connecting rod and the nursing head to move through the connection relationship between the second linkage rod and the connecting block connected by the bearing seat. The nursing head slides in a cycle. It can gently brush the teeth and gums, and can also clean the gap between two teeth. Compared with the rotation method, it is more in line with the actual operation of oral care and is more convenient to operate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an oral care device according to the present invention from a frontal perspective;

[0018] Figure 2 This is a schematic diagram of the overall structure of an oral care device according to the present invention from a rear view.

[0019] Figure 3 This is a top view of an oral care device according to the present invention;

[0020] Figure 4 This is a cross-sectional view of section AA of an oral care device according to the present invention;

[0021] Figure 5 This is a cross-sectional view of the outer protective shell of an oral care device according to the present invention;

[0022] Figure 6 This is a schematic diagram of the internal care unit of an oral care device according to the present invention;

[0023] Figure 7 This is a schematic diagram of the connection structure between the drive assembly and the outer limiting plate of an oral care device according to this utility model.

[0024] In the diagram: 1. Outer protective shell; 2. Outer anti-slip texture; 3. External thread; 4. Extended slot; 5. Rectangular through slot; 6. Sliding limit slot; 7. Limiting block; 8. Limiting interval; 9. Outer protective cover; 10. Inner care unit; 11. Drive assembly; 12. Sliding block; 13. Limiting strip; 14. Outer pressure plate; 15. Connecting column; 16. Inner fixing block; 17. Extended shoulder; 18. Pressure spring; 19. Fixing rod; 20. Outer limiting plate; 21. Outer fixing plate; 22. Inner protective shell; 23. Connecting rod; 24. Care head; 25. Micro motor; 26. First linkage rod; 27. Second linkage rod; 28. Bearing seat; 29. ​​Connecting block; 30. Inner limit slot. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Please see Figures 1-7 One embodiment provided by this utility model:

[0027] (1) Main structure

[0028] An oral care device includes an outer protective housing 1, within which an inner care unit 10 is disposed. Rectangular through slots 5 are formed at both the upper and lower ends of the outer surface of the outer protective housing 1. An external thread 3 is fixed to the other side of the outer protective housing 1, and an outer protective cover 9 is externally threaded onto the external thread 3. The outer protective housing 1 can be easily opened or closed by rotating the outer protective cover 9, thereby protecting the inner care unit 10.

[0029] (2) Internal nursing unit and drive adjustment mechanism

[0030] The inner care unit 10 includes two drive components 11 arranged symmetrically at the top and bottom. Each drive component 11 includes a sliding block 12 that slides along a rectangular through groove 5, facilitating the sliding of the sliding block 12. Limiting strips 13 are integrally connected to both ends of the sliding block 12. Sliding limiting grooves 6 are formed on both ends of the rectangular through groove 5, and the limiting strips 13 slide along the sliding limiting grooves 6, ensuring stable sliding of the sliding block 12. A connecting post 15 is slidably connected to the middle of the sliding block 12. An outer pressure plate 14 extends outward from the outside of the connecting post 15 and is fixed thereon for easy user pressing. An inner fixing block 16 is fixed inside the outer protective housing 1 of the connecting post 15. A pressure spring 18 is provided between the inner fixing block 16 and the sliding block 12 along the outside of the connecting post 15 to provide a restoring force. The front and rear ends of the inner fixing block 16 are integrally connected with the extended shoulder 17. The inner wall of the outer protective shell 1 is fixed with limit blocks 7 on both sides of the extended shoulder 17. The height of the part of the limit block 7 that fits with the extended shoulder 17 is less than the sliding height of the connecting column 15. Multiple limit blocks 7 on each side form a limit interval 8. The extended shoulder 17 is engaged in the limit interval 8, thus fixing the inner nursing unit 10.

[0031] The innovative sliding buckle fixing method makes it simple and quick to replace and adjust the position of the nursing head, improving the user's convenience.

[0032] The outer protective shell 1, the outer pressure plate 14, and the outer protective cover 9 are all provided with external anti-slip textures 2, which improves the grip stability during use.

[0033] (3) Internal structure of the internal nursing unit and nursing head replacement mechanism

[0034] Fixed rods 19 are fixed at both ends of the inner fixed block 16. An outer limiting plate 20 is provided between the two drive components 11. The other end of the fixed rod 19 extends into the outer limiting plate 20 and is telescopically connected to the outer limiting plate 20, ensuring the stable movement of the inner fixed block 16 and strengthening the connection between the drive components 11 and the outer limiting plate 20. An outer fixed plate 21 is fixed to the outside of the outer limiting plate 20. An inner protective shell 22 is fixed in the center on the other side of the outer fixed plate 21 to protect the internal components. A micro motor 25 is installed at one end inside the inner protective shell 22. The output shaft of the micro motor 25 is connected to a first linkage rod 26. The other end of the first linkage rod 26 is rotatably connected to a second linkage rod 27 via a shaft. The other end of the second linkage rod 27 extends into the bearing seat 28 and is rotatably connected to the bearing seat 28 via a shaft, realizing the transmission and conversion of power. A connecting block 29 is fixed to the outer end of the bearing housing 28. A connecting rod 23 is fixed to the center of the other end of the connecting block 29. The other end of the connecting rod 23 extends outward to the outside of the inner protective housing 22 and is connected to the nursing head 24. The end face of the outer protective housing 1 has an extension slot 4 larger than the size of the nursing head 24 to facilitate the extension and retraction of the nursing head 24. An inner limiting groove 30 is formed on the inner wall of the inner protective housing 22 at a position corresponding to the connecting block 29. The connecting block 29 slides along the inner limiting groove 30 to ensure the stable movement of the connecting rod 23 and the nursing head 24.

[0035] The rotation of the first linkage rod 26 and the second linkage rod 27 is driven by the micro motor 25, which realizes the cyclic sliding motion of the connecting rod 23 and the nursing head 24, thus meeting the user's cleaning needs for different parts of the oral cavity.

[0036] If the design is set to be wireless, the internal components of the inner protective housing 22 can be positioned to the right, leaving some space on the left side of the inner protective housing 22 for installing the battery structure.

[0037] The connecting rod 23 has a sliding groove on one end face near the nursing head 24, and a rotation limiting groove is located at one end of the sliding groove. The rod of the nursing head 24 has a fixing block that matches the sliding groove. Aligning the fixing block with the sliding groove allows the fixing block to be inserted along the sliding groove. Then, rotating the fixing block allows it to be inserted into the rotation limiting groove for fixation. This fixing method is widely used and will only be briefly described.

[0038] The nursing head 24 in the figure is a crevice brush structure. In actual use, for hygiene and to prevent cross-infection, the nursing head 24 can be replaced with other nursing structures.

[0039] Working principle: The nurse rotates the outer protective cover 9 to expose the protruding slot 4. With one hand holding the outer protective shell 1, the nurse presses the outer pressure plate 14 with two fingers of the other hand. Under the pressing action, the connecting column 15 moves inward along the sliding block 12, driving the inner fixing block 16 and the extension shoulder 17 to move inward. The pressure spring 18 extends, and the fixing rod 19 moves into the outer limiting plate 20. At this time, the extension shoulder 17 disengages from the limiting area 8 formed by multiple limiting blocks 7 on one side. Under the pressing state, the outer pressure plate 14 is pushed to slide along the rectangular through slot 5 until it moves to the other end of the rectangular through slot 5. When the outer pressure plate 14 is released, under the reset action of the pressure spring 18, the outer pressure plate 14, the inner fixing block 16 and the extension shoulder 17 move outward. The extension shoulder 17 is inserted into the limiting area 8 formed by multiple limiting blocks 7 on the other side, completing the fixation. At this time, one end of the connecting rod 23 reaches the outside of the protruding slot 4.

[0040] According to the nursing needs, different nursing heads 24 are inserted into one end of the connecting rod 23 and rotated to fix them; when the switch is turned on, the micro motor 25 drives the first linkage rod 26 to rotate, pulls the second linkage rod 27 to rotate, and pulls the connecting rod 23 and the nursing head 24 to move through the connection relationship between the second linkage rod 27 and the connecting block 29 and the bearing seat 28. The nursing head 24 slides in a cycle to clean the gaps between the user's teeth, tongue coating, tooth surface or oral mucosa.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An oral care device, comprising an outer protective shell (1), characterized in that: The outer protective shell (1) has rectangular through slots (5) at both the upper and lower ends of its outer surface. An inner care unit (10) is provided inside the outer protective shell (1). The inner care unit (10) includes a drive assembly (11). Two drive assemblies (11) are symmetrically arranged vertically. Each drive assembly (11) includes a sliding block (12). The sliding block (12) slides along the rectangular through slot (5). A connecting post (15) is slidably connected in the middle of the sliding block (12). An outer pressure plate (14) extends outward from the outside of the connecting post (15). The inside of the connecting post (15) extends into the outer protective shell. (1) An inner fixing block (16) is fixed inside. A pressure spring (18) is provided between the inner fixing block (16) and the sliding block (12) along the outside of the connecting column (15). The front and rear ends of the inner fixing block (16) are integrally connected with an extension shoulder (17). The inner wall of the outer protective shell (1) is fixed with limit blocks (7) on both sides of the extension shoulder (17). The height of the limit block (7) and the extension shoulder (17) is less than the sliding height of the connecting column (15). A limit interval (8) is formed between multiple limit blocks (7) on each side. The extension shoulder (17) is engaged in the limit interval (8).

2. The oral care device according to claim 1, characterized in that: The inner fixed block (16) has a fixed rod (19) fixed at both the front and rear ends. An outer limiting plate (20) is provided between the two driving components (11). The other end of the fixed rod (19) extends into the outer limiting plate (20) and is telescopically connected to the outer limiting plate (20). An outer fixed plate (21) is fixed on the outside of the outer limiting plate (20). An inner protective shell (22) is fixed in the center on the other side of the outer fixed plate (21).

3. The oral care device according to claim 2, characterized in that: A micro motor (25) is installed at one end inside the inner protective shell (22). The output shaft of the micro motor (25) is connected to a first linkage rod (26). The other end of the first linkage rod (26) is rotatably connected to a second linkage rod (27) via a shaft. The other end of the second linkage rod (27) extends into the bearing seat (28) and is rotatably connected to the bearing seat (28) via a shaft. A connecting block (29) is fixed at the outer end of the bearing seat (28). A connecting rod (23) is fixed in the center at the other end of the connecting block (29). The other end of the connecting rod (23) extends outward to the outside of the inner protective shell (22).

4. The oral care device according to claim 1, characterized in that: An external thread (3) is fixed on the other side of the outer protective shell (1), and an outer protective cover (9) is connected to the external thread (3).

5. An oral care device according to claim 4, characterized in that: The sliding block (12) is integrally connected to the two ends of the limiting strip (13). The two ends of the rectangular through groove (5) are provided with sliding limiting grooves (6). The limiting strip (13) slides along the sliding limiting groove (6). The outer surface of the outer protective shell (1) is provided with external anti-slip texture (2) between the two rectangular through grooves (5), the outer end face of the outer pressure plate (14), and the outer surface of the outer protective cover (9).

6. The oral care device according to claim 3, characterized in that: The inner wall of the inner protective shell (22) is provided with an inner limiting groove (30) at the corresponding position of the connecting block (29), and the connecting block (29) slides along the inner limiting groove (30).

7. The oral care device according to claim 3, characterized in that: The end of the connecting rod (23) away from the inner protective shell (22) is connected to the nursing head (24), and the end face of the outer protective shell (1) is provided with an extended slot (4) larger than the size of the nursing head (24).

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