Detachable toothbrush

Abstract

A detachable toothbrush, comprising a brush head (1) and a brush handle (2). The brush head (1) is detachably connected to the brush handle (2). Either of the brush head (1) and the brush handle (2) is provided with a connecting structure. The connecting structure is provided with a first chamber and a second chamber. The first chamber is communicated with the second chamber to form a locking chamber, a first insertion port (21) is formed on the side of the first chamber facing away from the second chamber, and a second insertion port (22) is formed on the side of the second chamber facing away from the first chamber. The other of the brush head (1) the brush handle (2) is provided with a first insertion structure (3) capable of blocking the first insertion port (21). The detachable toothbrush further comprises a second insertion member (4), and the second insertion member (4) is used for blocking the second insertion port (22). When the first insertion structure (3) blocks the first insertion port (21), the second insertion member (4) blocks the second insertion port (22) to close the locking chamber, so that the first insertion structure (3) is locked in the locking chamber.

Description

A detachable toothbrush Technical Field

[0001] The present application relates to the field of toothbrushes, and in particular to a detachable toothbrush. Background Art

[0002] A toothbrush is a cleaning product that can be used to brush teeth repeatedly by adding toothpaste to the brush head and gripping the handle. Since toothbrushes are consumable, the bristles can easily bend and deform during use. Bent bristles can trap debris and easily abrade gums, so it's generally recommended to replace toothbrushes regularly based on how often they're used.

[0003] Replacing a toothbrush is actually about replacing the brush head if the bristles have become deformed. This allows you to replace only the brush head, reducing replacement costs. Common toothbrushes with replaceable brush heads typically use a plug-in method to detach the brush head. While the simple plug-in structure allows the brush head to connect to the handle, the connection is unstable, and the brush head can easily slip during use or fall off after prolonged use, causing inconvenience to the user.

[0004] Summary of the Invention

[0005] The main purpose of this application is to provide a detachable toothbrush to solve the above problems.

[0006] To achieve the aforementioned application objectives, the technical solutions adopted in this application include:

[0007] The embodiment of the present application provides a detachable toothbrush, comprising a brush head and a brush handle, wherein the brush head is detachably connected to the brush handle, and is characterized in that:

[0008] A connecting structure is provided on either the brush head or the brush handle, wherein the connecting structure has a first chamber and a second chamber, wherein the first chamber is connected to the second chamber to form a locking chamber, and a first plug interface is provided on the side of the first chamber facing away from the second chamber, and a second plug interface is provided on the side of the second chamber facing away from the first chamber;

[0009] The other of the brush head and the brush handle has a first plug-in structure capable of blocking the first plug-in interface;

[0010] The detachable toothbrush further comprises a second plug-in component, and the second plug-in component is used to block the second plug-in port;

[0011] When the first plug-in structure blocks the first plug-in port, the second plug-in member blocks the second plug-in port to close the locking chamber, thereby locking the first plug-in structure in the locking chamber.

[0012] Compared with the prior art, the advantages of the present application include: a detachable toothbrush provided in an embodiment of the present application is provided with a first plug-in structure, a second plug-in component and a locking chamber, and the first plug-in mechanism and the second plug-in component can be plugged and fixed with the locking chamber, thereby maintaining a stable connection between the brush head and the brush handle to prevent falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] FIG1 is a schematic structural diagram of a detachable toothbrush provided in the present application;

[0015] FIG2 is an exploded schematic diagram of a detachable toothbrush provided in the present application;

[0016] FIG3 is a top view of a detachable toothbrush provided in the present application;

[0017] FIG4 is a schematic cross-sectional view taken along line AA in FIG3 ;

[0018] FIG5 is a schematic cross-sectional view taken along line BB in FIG3 ;

[0019] FIG6 is a partial enlarged schematic diagram of point C in FIG5 ;

[0020] Explanation of the accompanying reference numerals: 1. Brush head; 11. First plug-in component; 2. Brush handle; 21. First plug-in interface; 22. Second plug-in interface; 3. First plug-in structure; 4. Second plug-in component; 41. Press cap. DETAILED DESCRIPTION

[0021] In view of the shortcomings of the existing technology, the inventors of this case, after long-term research and extensive practice, have proposed the technical solution of this application. The following will further explain this technical solution, its implementation process and principles.

[0022] The embodiment of the present application provides a detachable toothbrush, comprising a brush head and a brush handle, wherein the brush head is detachably connected to the brush handle, and is characterized in that:

[0023] A connecting structure is provided on either the brush head or the brush handle, wherein the connecting structure has a first chamber and a second chamber, wherein the first chamber is connected to the second chamber to form a locking chamber, and a first plug interface is provided on the side of the first chamber facing away from the second chamber, and a second plug interface is provided on the side of the second chamber facing away from the first chamber;

[0024] The other of the brush head and the brush handle has a first plug-in structure capable of blocking the first plug-in interface;

[0025] The detachable toothbrush further comprises a second plug-in component, and the second plug-in component is used to block the second plug-in port;

[0026] When the first plug-in structure blocks the first plug-in port, the second plug-in member blocks the second plug-in port to close the locking chamber, thereby locking the first plug-in structure in the locking chamber.

[0027] In some more specific embodiments, the first plug-in structure has at least one first plug-in portion, the first plug interface has a first mating portion capable of mating with the first plug-in portion, and the first plug-in portion can be configured in the first mating portion to constrain the first plug-in structure from moving circumferentially and / or radially.

[0028] In some more specific embodiments, the radial dimension of the first chamber gradually decreases along a first direction, where the first direction is perpendicular to the radial direction of the first chamber and gradually approaches the second chamber.

[0029] In some more specific embodiments, the radial dimension of the second chamber gradually decreases along a second direction, where the second direction is perpendicular to the radial direction of the second chamber and gradually approaches the first chamber.

[0030] In some more specific embodiments, the radial dimension of the first plug-in structure gradually decreases along a first direction, where the first direction is the axial direction of the first chamber and gradually approaches the second chamber.

[0031] In some more specific embodiments, the radial dimension of the second plug-in member gradually decreases along the second direction, where the second direction is the axial direction of the second chamber and gradually approaches the first chamber.

[0032] In some more specific embodiments, the transverse cross-section of the first plug-in structure has a regular shape or an irregular shape, and the regular shape includes an ellipse, a rectangle, and a triangle.

[0033] In some more specific embodiments, the shape of any transverse cross-section of the first chamber is regular or irregular, and the regular shape includes oval, rectangular, and triangular.

[0034] In some more specific embodiments, the transverse cross-section of the second plug-in component is regular or irregular, and the regular shape includes an ellipse, a rectangle, and a triangle.

[0035] In some more specific embodiments, the shape of any transverse cross-section of the second chamber is regular or irregular, and the regular shape includes oval, rectangular, and triangular.

[0036] In some more specific embodiments, at least a portion of the first plug-in structure extends along its axial direction, and all or a portion of the first plug-in structure is disposed in the first chamber.

[0037] In some more specific embodiments, at least a portion of the second plug-in member extends along its axial direction, and all or a portion of the second plug-in member is disposed in the second chamber.

[0038] In some more specific embodiments, a pressing cap is further provided on the second plug-in component, and at least part of the radial dimension of the pressing cap is larger than any radial dimension of the second plug-in component. The pressing cap has a pressing surface, which is at least used to withstand external force.

[0039] In some more specific embodiments, the locking chamber also contains a sealing liquid. When the first plug-in structure blocks the first plug-in interface, the second plug-in structure blocks the second plug-in interface to close the locking chamber. After closure, at least part of the chamber in the locking chamber contains the sealing liquid.

[0040] In some more specific embodiments, the brush head also has a first contour portion, the first plug-in structure is arranged on the first contour portion, the brush handle has a second contour portion, and the connecting structure is arranged on the second contour portion. When the first plug-in structure and the connecting structure are matched and fixed, the first contour portion and the second contour portion are spliced ​​to form a complete handle contour portion.

[0041] The following will further explain the technical solution, its implementation process and principles in conjunction with the accompanying drawings and specific implementation cases. Unless otherwise specified, the bristles used in the embodiments of the present application are components known to those skilled in the art and can be purchased commercially. Their specific structures and models are not limited here.

[0042] Please refer to Figures 1 to 6 , the specific embodiments provided in this application are as follows:

[0043] As shown in FIG1 to FIG6 , the first embodiment of the present application provides a detachable toothbrush, comprising a brush head 1 and a brush handle 2, wherein the brush head 1 is detachably connected to the brush handle 2, wherein:

[0044] Either the brush head 1 or the brush handle 2 has a connecting structure, which has a first chamber and a second chamber. The first chamber is connected to the second chamber to form a locking chamber. The first chamber is further provided with a first plug interface 21 on the side facing away from the second chamber, and the second chamber is further provided with a second plug interface 22 on the side facing away from the first chamber.

[0045] The other of the brush head 1 and the brush handle 2 has a first plug-in structure 3 capable of blocking the first plug-in port 21;

[0046] The detachable toothbrush further includes a second plug-in component 4, and the second plug-in component 4 is used to block the second plug-in port 22;

[0047] When the first plug-in structure 3 blocks the first plug-in port 21 , the second plug-in member 4 blocks the second plug-in port 22 to close the locking chamber, thereby locking the first plug-in structure 3 in the locking chamber.

[0048] As shown in Figure 2, the brush head 1 is provided with bristles for brushing teeth. The brush head 1 and the brush handle 2 are plugged and fixed via the connecting structure and the first plugging structure 3. The connecting structure can be provided on the brush head 1, and the first plugging structure 3 can be provided on the brush handle 2. Alternatively, the first plugging member 11 can be provided on the brush head 1, and the connecting structure can be provided on the brush handle 2. This is not a limitation, and in this embodiment, the brush head 1 is provided with the first plugging structure 3, and the brush handle 2 is provided with the connecting structure.

[0049] The connection structure provided on the brush handle 2 has a first chamber and a second chamber that are interconnected. The first chamber and the second chamber are connected to form a locking chamber. The brush head 1 is provided with a first plug-in component 11. The first plug-in component 11 has the first plug-in structure 3 and can plug and fix the first plug-in component 11 to the first plug-in interface 21 of the first chamber. A second plug-in component 4 can be plugged into the second plug-in interface 22 of the second chamber. The second plug-in component 4 can block the second plug-in interface 22. At this time, the locking chamber is closed by the first plug-in component 11 and the second plug-in component 4, so that the air pressure in the locking chamber remains stable. It can be understood that the pressure in the locking chamber is close to or the same as the external atmospheric pressure, so that the brush head 1 and the second plug-in component 4 can be stably plugged into the locking chamber.

[0050] According to the ideal gas state equation: pV = nRT, p is the pressure in the locking chamber (Pa), V is the gas volume in the locking chamber (m 3), n is the amount of substance (mol) of the gas in the locking chamber, R is the molar gas constant (also called the universal gas constant) (J / (mol.K)), and T is the temperature (K). It can be seen that when the brush head 1 wants to leave the brush handle 2, the brush head 1 needs to move away from the side where the locking chamber is located. At this time, the volume V of the gas in the locking chamber increases, and the pressure p in the locking chamber decreases. The pressure p in the locking chamber is less than the external atmospheric pressure. Under the action of the atmospheric pressure, the brush head 1 is pressed toward the side where the locking chamber is located, so that the brush head 1 cannot leave the brush handle 2. This force action relationship is manifested in the daily use of the toothbrush, so that the brush head 1 is stably constrained on the brush handle 2. When the brush head 1 needs to be replaced, the brush head 1 can be unplugged by external force, and the external force applied can overcome the pressure in the locking chamber, so that the first plug-in structure 3 is disconnected from the first plug-in interface 21.

[0051] Specifically, as shown in Figure 1, the brush head 1 is provided with a first plug-in component 11, the first plug-in component 11 has a first plug-in structure 3, the first plug-in structure 3 has at least one first plug-in portion, the first plug-in interface 21 has a first mating portion that can cooperate with the first plug-in portion, and the first plug-in portion can be configured in the first mating portion to constrain the first plug-in structure 3 to move along its own circumferential and radial directions.

[0052] If the transverse cross-section of the first plug-in structure 3 is circular, the brush head 1 will easily rotate when plugged into the first plug-in port 21. Therefore, the transverse cross-section of the first plug-in structure 3 can be regular or irregular, with regular shapes including elliptical, rectangular, and triangular. The first plug-in portion can be understood as the two ends of the ellipse along its long axis. In this case, the first plug-in portion can be plugged and fixed with the first mating portion of the first plug-in port 21, thereby restricting the first plug-in structure 3 from moving along its own circumferential direction.

[0053] Of course, the shape of the first cavity can also match the first plug structure 3. The shape of any transverse cross section of the first cavity can be regular or irregular, and the regular shape includes ellipse, rectangle, and triangle. The shape of the transverse cross section of the second plug member 4 can be regular or irregular, and the regular shape includes ellipse, rectangle, and triangle. The shape of any transverse cross section of the second cavity can be regular or irregular, and the regular shape includes ellipse, rectangle, and triangle.

[0054] More specifically, the first insertion port 21 extends axially and radially along the brush handle 2 to form the first chamber. The second insertion port 22 extends axially and radially along the brush handle 2 to form the second chamber. This means that the first insertion port 21 can constrain radial and axial movement of the first plug-in component 11, while the second insertion port can constrain axial and radial movement of the second plug-in component 4.

[0055] As shown in Figures 3 to 6, the second embodiment of the present application proposes a detachable toothbrush, wherein: the radial dimension of the first chamber gradually decreases along a first direction, and the first direction is the axial direction of the first chamber and gradually approaches the second chamber.

[0056] It is easy to understand that the first plug-in structure 3 can be plugged and fixed with the first cavity, and in order to keep the first plug-in member 11 stable. The first cavity can be oriented as shown in FIG6 , with the radial dimension gradually decreasing from top to bottom. The first plug-in structure 3 can be a cylinder, and the diameter of the cylinder is greater than or equal to the radial dimension of the first cavity. When the cylinder is inserted from top to bottom along the first cavity, along with the extension of the first plug-in structure 3, the inner wall surface of the first cavity can squeeze the first plug-in structure 3, so that the first plug-in structure 3 can be more stably matched with the first cavity.

[0057] Based on this, the radial dimension of the second cavity gradually decreases along the second direction, which is the axial direction of the second cavity and gradually approaches the first cavity, so as to facilitate the stable insertion and fixation of the second plug-in member 4 with the second cavity.

[0058] As shown in Figure 6, the radial dimension of the first plug-in structure 3 plugged into the first cavity can also be gradually reduced along the first direction to increase the contact area with the first cavity, increase friction, and prevent the first plug-in structure 3 from falling out. When the first cavity and the second cavity are arranged perpendicularly, the radial dimension of the second plug-in member 4 plugged into the second cavity can also be gradually reduced along the second direction to achieve the same effect as the above-mentioned first plug-in structure 3 plugged into the first cavity.

[0059] It is easy to understand that at least part of the first plug-in structure 3 extends along its axial direction, and all or part of the first plug-in structure 3 is arranged in the first cavity; at least part of the second plug-in component 4 extends along its axial direction, and all or part of the second plug-in component 4 is arranged in the second cavity. When in use, part of the first plug-in structure 3 is arranged in the first cavity, and part of the second plug-in component 4 is arranged in the second cavity, which can achieve the above-mentioned purpose of closing the locking cavity. Under this premise, the first plug-in structure 3 and the second plug-in component 4 can continue to be pressed and completely enter the locking cavity, which not only ensures the integrity of the toothbrush appearance, but also increases the contact area with the locking cavity, and further avoids the problem of the first plug-in component 11 and the second plug-in component 4 being separated from the locking cavity.

[0060] Specifically, the second plug-in member 4 is further provided with a pressing cap 41, and at least part of the radial dimension of the pressing cap 41 is larger than any radial dimension of the second plug-in member 4. The pressing cap 41 has a pressing surface, which is at least used to withstand external force. When pressed, external force can be applied to the pressing surface of the pressing cap 41 to facilitate the second plug-in member to enter the locking chamber.

[0061] Of course, in order to increase the friction force, a pattern that increases the friction force may be provided on the pressing surface.

[0062] Furthermore, the locking chamber also contains sealing liquid. When the first plug-in structure 3 blocks the first plug-in port 21, the second plug-in member 4 blocks the second plug-in port 22 to close the locking chamber. After closing, at least part of the chamber in the locking chamber contains the sealing liquid.

[0063] Of course, to ensure the integrity of the toothbrush's appearance, the brush head 1 also has a first contour portion, the first plugging member 11 is disposed on the first contour portion, and the first plugging structure 3 is formed on the first contour portion. The brush handle 2 has a second contour portion, and the connecting structure is disposed on the second contour portion. When the first plugging structure 3 and the connecting structure are mated and fixed, the first contour portion and the second contour portion are spliced ​​together to form a complete handle contour portion. When the brush head 1 and the brush handle 2 are plugged and fixed, the integrity of the toothbrush's contour can be ensured.

[0064] It should be understood that the above embodiments are merely illustrative of the technical concepts and features of this application. Their purpose is to enable those familiar with the art to understand the content of this application and implement it accordingly. They are not intended to limit the scope of protection of this application. Any equivalent changes or modifications made in accordance with the spirit of this invention are intended to be included within the scope of protection of this application.

Claims

1. A detachable toothbrush, comprising a brush head (1) and a brush handle (2), wherein the brush head (1) is detachably connected to the brush handle (2), and characterized in that: A connection structure is provided on either the brush head (1) or the brush handle (2), wherein the connection structure has a first chamber and a second chamber, wherein the first chamber is connected to the second chamber to form a locking chamber, wherein a first plug interface (21) is provided on a side of the first chamber facing away from the second chamber, and a second plug interface (22) is provided on a side of the second chamber facing away from the first chamber; The other of the brush head (1) and the brush handle (2) has a first plug-in structure (3) capable of blocking the first plug-in port (21); The detachable toothbrush further comprises a second plug-in component (4), wherein the second plug-in component (4) is used to block the second plug-in port (22); When the first plug-in structure (3) blocks the first plug-in port (21), the second plug-in component (4) blocks the second plug-in port (22) to close the locking chamber, thereby locking the first plug-in structure (3) in the locking chamber.

2. A detachable toothbrush according to claim 1, characterized in that: The first plug-in structure (3) has at least one first plug-in portion, and the first plug interface (21) has a first mating portion capable of mating with the first plug-in portion, and the first plug-in portion can be configured in the first mating portion to constrain the first plug-in structure (3) to move along its own circumferential and / or radial direction.

3. A detachable toothbrush according to claim 1, characterized in that: The radial dimension of the first chamber gradually decreases along a first direction, where the first direction is perpendicular to the radial direction of the first chamber and gradually approaches the second chamber.

4. A detachable toothbrush according to claim 1, characterized in that: The radial dimension of the second chamber gradually decreases along a second direction, and the second direction is a direction perpendicular to the radial direction of the second chamber and gradually approaches the first chamber.

5. A detachable toothbrush according to claim 1, characterized in that: The radial dimension of the first plug-in structure (3) gradually decreases along a first direction, wherein the first direction is the axial direction of the first chamber and gradually approaches the second chamber; And / or, the radial dimension of the second plug-in component (4) gradually decreases along a second direction, and the second direction is the axial direction of the second chamber and gradually approaches the first chamber.

6. A detachable toothbrush according to claim 1, characterized in that: The shape of the transverse cross section of the first plug-in structure (3) is a regular shape or an irregular shape, and the regular shape includes an ellipse, a rectangle, and a triangle; And / or, the shape of any transverse cross section of the first chamber is a regular shape or an irregular shape, and the regular shape includes an ellipse, a rectangle, and a triangle; And / or, the shape of the transverse cross section of the second plug-in component (4) is a regular shape or an irregular shape, and the regular shape includes an ellipse, a rectangle, or a triangle; And / or, the shape of any transverse cross section of the second chamber is regular or irregular, and the regular shape includes an ellipse, a rectangle, and a triangle.

7. A detachable toothbrush according to claim 1, characterized in that: At least part of the first plug-in structure (3) extends along its axial direction, and all or part of the first plug-in structure (3) is arranged in the first chamber; And / or, at least a portion of the second plug-in component (4) extends along its axial direction, and all or a portion of the second plug-in component (4) is arranged in the second chamber.

8. A detachable toothbrush according to claim 7, characterized in that: The second plug-in component (4) is also provided with a pressing cap (41), and at least part of the radial dimension of the pressing cap (41) is larger than any radial dimension of the second plug-in component (4). The pressing cap (41) has a pressing surface, and the pressing surface is at least used to bear external force.

9. A detachable toothbrush according to claim 8, characterized in that: The locking chamber also contains a sealing liquid. When the first plug-in structure (3) blocks the first plug-in port (21), the second plug-in component (4) blocks the second plug-in port (22) to close the locking chamber. After the locking chamber is closed, at least part of the chamber contains the sealing liquid.

10. A detachable toothbrush according to claim 9, characterized in that: The brush head (1) also has a first contour portion, the first plug-in structure (3) is arranged on the first contour portion, the brush handle (2) has a second contour portion, the connecting structure is arranged on the second contour portion, and when the first plug-in structure (3) and the connecting structure are matched and fixed, the first contour portion and the second contour portion are spliced ​​to form a complete handle contour portion.

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