CN212185603U - Toothbrush, device for mounting and dismounting toothbrush head and toothbrush set - Google Patents

Abstract

The utility model provides a toothbrush, be used for installation and dismantle device and toothbrush suit of toothbrush head. The toothbrush includes: the toothbrush handle comprises a gripping part and a toothbrush head mounting part connected with the gripping part, and is at least partially made of a metal material; a toothbrush head comprising a toothbrush head body and bristles mounted to a first side of the toothbrush head body, the toothbrush head body further having a second side opposite the first side; wherein, be formed with first hole on one in toothbrush head installation department and toothbrush head body's second side, be formed with corresponding protruding inserted part on another in toothbrush head installation department and toothbrush head body's second side, through in pegging graft the first hole with protruding inserted part, toothbrush head detachably installs on the toothbrush head installation department. According to the utility model discloses, can make the toothbrush handle by used repeatedly to improve resource utilization and reduce waste treatment volume, and make the installation and the dismantlement of toothbrush head can be laborsaving, simple and convenient, go on high-efficiently.

Description

Toothbrush, device for mounting and dismounting toothbrush head and toothbrush set

Technical Field

The utility model relates to a toothbrush, be used for installation and dismantlement toothbrush head's device and toothbrush suit.

Background

According to dentists' recommendations, people should brush their teeth at least twice a day and change their toothbrushes at least every three months, and therefore, the consumption of toothbrushes is extremely enormous worldwide. When replacing a toothbrush, a person typically replaces the old toothbrush with a new one and disposes of the old toothbrush as waste. However, the old toothbrush is not suitable for continuous use of the bristles on the toothbrush head, but the toothbrush handle can be continuously used, so that the disposal of the entire old toothbrush results in a great waste of resources and significantly increases the amount of waste disposal.

Accordingly, there is a need for improvements in existing toothbrushes.

SUMMERY OF THE UTILITY MODEL

It is an object of the present invention to overcome at least one of the above-mentioned disadvantages of the prior art toothbrushes and to provide an improved toothbrush which enables the handle to be reused in situations where the bristles on the toothbrush head are unsuitable for continued use in brushing teeth, to improve resource utilization and to reduce waste disposal.

It is another object of the present invention to provide a device for mounting and/or dismounting a toothbrush head which allows the head to be easily mounted to and/or dismounted from a toothbrush handle.

According to an aspect of the present invention, there is provided a toothbrush, comprising:

a toothbrush handle comprising a grip portion and a head mounting portion connected to the grip portion, the toothbrush handle being at least partially made of a metallic material;

a toothbrush head comprising a toothbrush head body and bristles mounted to a first side of the toothbrush head body, the toothbrush head body further having a second side opposite the first side;

wherein the toothbrush head mounting portion with the toothbrush head body be formed with first hole on one of the second sides toothbrush head mounting portion with the toothbrush head body be formed with corresponding protruding spigot on another of the second side, through with protruding spigot pegging graft in the first hole, toothbrush head detachably installs on the toothbrush head mounting portion.

In one embodiment, the toothbrush handle is entirely made of a metal material.

In one embodiment, the metallic material comprises stainless steel, silver, copper, a silver alloy, or a copper alloy.

In one embodiment, the grip portion of the toothbrush handle is formed with an anti-slip relief or identification pattern.

In one embodiment, the portion of the second side of the head body other than the projecting insertion portion is formed into a smooth surface, and the side of the head mounting portion which contacts the head is also formed into a smooth surface.

In one embodiment, the first hole is a through hole formed on the head mounting portion, and the protruding insertion part is formed on the second side of the head body.

In one embodiment there are four of said first apertures distributed symmetrically with respect to the longitudinal axis of said handle.

In one embodiment, the projected insertion part includes a root portion extending from the head body and an end portion integral with the root portion but enlarged in size, and a cut-away portion is further formed on the projected insertion part.

In one embodiment, the projected insertion part includes a root portion extending from the head body and an end portion integral with the root portion but enlarged in size, and a cut-away portion is further formed on the projected insertion part, and the first hole includes a first portion corresponding to the root portion and a second portion corresponding to the end portion and enlarged in size relative to the first portion.

In one embodiment, the radial dimension of the root portion is selected to be the same as or slightly smaller than the radial dimension of the first portion, and the radial dimension of the tip portion is selected to be the same as or slightly smaller than the radial dimension of the second portion.

In one embodiment, the bristles include a first group of bristles disposed centrally of the head body, and second and third groups of bristles symmetrically disposed on either side of the first group of bristles along the longitudinal direction of the head body, each group of bristles including a plurality of bristle tufts grouped together by a plurality of bristles, the bristle tufts in the first group of bristles being arranged in a plurality of columns and spaced apart from each other along the longitudinal direction of the head body, each bristle tuft in the first group of bristles being disposed parallel to a plane passing through the longitudinal axis of the head body and perpendicular to the first side, the bristle tufts in the second and third groups of bristles being arranged in columns and spaced apart from each other along the longitudinal direction of the head body, each bristle tuft in the second and third groups of bristles being disposed obliquely outwardly with respect to the plane, such that the gaps between the second and third sets of bristles and the first set of bristles progressively increase in a direction along the plane away from the toothbrush head body.

In one embodiment, the second and third sets of bristles each comprise at least two columns of bristle tufts, a column of the at least two columns of bristle tufts distal from the first set of bristles being angled outwardly at a greater angle than a column of the bristle tufts proximal to the first set of bristles.

In one embodiment, the bristles further comprise a fourth group of bristles disposed at an end of the head body remote from the handle, the fourth group of bristles comprising at least one array of arcuately arranged bristle tufts.

In one embodiment, each bristle tuft of the fourth set of bristles is disposed obliquely outwardly relative to the center of the arc.

In one embodiment, the head mounting portion is further formed with a second aperture therethrough.

According to another aspect of the present invention, there is provided an apparatus for mounting and dismounting a head of a toothbrush as described above on or from a toothbrush handle, the head mounting portion further having a second hole formed therethrough, the apparatus for mounting and dismounting the head comprising:

a lower housing;

an upper housing pivotably mounted to the lower housing; and

a lining member disposed in the lower case;

a toothbrush head mounting cavity is formed on the lining member, a stepped part for supporting an edge part of the toothbrush head body is formed on an inner wall of the toothbrush head mounting cavity, a protruding pressing part is formed on a surface of the upper housing facing the lining member at a position corresponding to the toothbrush head mounting cavity, and when the toothbrush head is supported in the toothbrush head mounting cavity by the stepped part and the protruding insertion part is aligned with the first hole, a force can be applied to the toothbrush head mounting part by the pressing part to insert the protruding insertion part into the first hole; and

the toothbrush head disassembly cavity is formed in the lining component, a step portion used for supporting the toothbrush handle is formed on the inner wall of the toothbrush head disassembly cavity, a protruding pushing column is formed in a position, corresponding to the toothbrush head disassembly cavity, on the surface of the lining component, of the upper shell, when the toothbrush head mounted on the toothbrush handle is placed in the toothbrush head disassembly cavity, and the toothbrush handle is supported by the step portion, acting force can be applied to the toothbrush head body through the pushing column penetrating through the second hole, so that the protruding insertion part is disengaged from the first hole.

In one embodiment, the liner member further has a recess formed therein communicating with the head mounting cavity and for receiving a portion of the handle.

In one embodiment, the lining member is further formed with a groove communicating with the head removing cavity and receiving a portion of the toothbrush handle.

In one embodiment, the lining member further has a cleaning brush accommodating chamber formed thereon.

In one embodiment, the lining member is further formed with a head accommodating cavity for accommodating a spare brush head.

In one embodiment, the liner component is formed separately from and mounted to the lower shell.

According to another aspect of the present invention, there is provided a toothbrush kit, comprising:

a toothbrush as described above; and

a device for mounting and dismounting a toothbrush head as described above.

According to the toothbrush of the utility model, the toothbrush handle can be repeatedly used, so that the resource utilization rate is improved and the waste disposal quantity is reduced.

According to the utility model discloses a device for installing and/or dismantle toothbrush head for toothbrush head's installation and/or dismantlement can be laborsaving, simple and convenient, go on high-efficiently.

Drawings

Figure 1 is a schematic perspective view of a toothbrush according to a first preferred embodiment of the present invention;

FIG. 1a is a schematic cross-sectional view taken in a direction parallel to the longitudinal axis of the toothbrush of FIG. 1 and through a protruding spigot on the head of the toothbrush;

FIG. 1b is a schematic cross-sectional view taken in a direction perpendicular to the longitudinal axis of the toothbrush of FIG. 1 and through a protruding spigot on the head of the toothbrush;

figure 2 is another schematic perspective view of a toothbrush according to a first preferred embodiment of the present invention;

figure 3 is a schematic side view of a toothbrush according to a first preferred embodiment of the invention;

FIG. 3a is an enlarged schematic view similar to FIG. 1 a;

FIG. 3b is an enlarged schematic view similar to FIG. 3a, with the head and handle separated;

FIG. 4 is a schematic perspective view of a toothbrush handle of a toothbrush according to a first preferred embodiment of the present invention;

FIG. 5 is another schematic perspective view of a toothbrush handle of the toothbrush according to the first preferred embodiment of the present invention;

figure 6 is a schematic perspective view of the head of a toothbrush in accordance with a first preferred embodiment of the invention;

figure 7 is another schematic perspective view of the head of a toothbrush in accordance with a first preferred embodiment of the invention;

figure 8 is a schematic front view of the head of a toothbrush in accordance with a first preferred embodiment of the invention;

figure 9 is a schematic end view of the head of a toothbrush in accordance with a first preferred embodiment of the invention;

figure 10 is a schematic bottom view of the head of a toothbrush in accordance with a first preferred embodiment of the invention;

figure 11 is a schematic top view of the head of a toothbrush in accordance with a first preferred embodiment of the invention;

figure 12 is a schematic perspective view of the head of a toothbrush in accordance with a second preferred embodiment of the invention;

figure 13 is another schematic perspective view of the head of a toothbrush in accordance with a second preferred embodiment of the invention;

figure 14 is a schematic front view of the head of a toothbrush in accordance with a second preferred embodiment of the invention;

figure 15 is a schematic end view of the head of a toothbrush in accordance with a second preferred embodiment of the invention;

figure 16 is a schematic bottom view of the head of a toothbrush in accordance with a second preferred embodiment of the invention;

figure 17 is a schematic top plan view of the head of a toothbrush in accordance with a second preferred embodiment of the invention;

figure 18 is a schematic perspective view of an apparatus for mounting and dismounting a toothbrush head according to a preferred embodiment of the present invention;

figure 19 is a front elevational view of the device for mounting and dismounting the toothbrush head of figure 18;

figure 20 is an end view of the apparatus shown in figure 18 for mounting and dismounting the toothbrush head;

figure 21 is a top plan view of the apparatus for mounting and dismounting the toothbrush head shown in figure 18;

figure 22 is a bottom view of the apparatus for mounting and dismounting the toothbrush head of figure 18;

figure 23 is a perspective view of the device for mounting and dismounting the toothbrush head of figure 18 in an open position;

figure 24 is an exploded perspective view of the device for mounting and dismounting the toothbrush head shown in figure 18;

figure 25 is a bottom perspective view of the lining component of the device for mounting and dismounting the toothbrush head of figure 18;

figure 26 is a schematic cross-sectional view of the liner component of the apparatus for mounting and dismounting the toothbrush head of figure 18 mounted to the lower housing;

FIG. 27 is a perspective view showing the mounting of the toothbrush head using the apparatus for mounting and dismounting the toothbrush head shown in FIG. 18, wherein a toothbrush head is placed in the toothbrush head mounting cavity;

FIG. 28 is a schematic cross-sectional view showing the mounting of the toothbrush head using the apparatus for mounting and dismounting the toothbrush head shown in FIG. 18, wherein a toothbrush handle is placed on the toothbrush head;

FIG. 29 is a cross-sectional view showing the mounting of the toothbrush head using the apparatus for mounting and dismounting the toothbrush head shown in FIG. 18, wherein the toothbrush head has been mounted on a toothbrush handle;

FIG. 30 is a perspective view showing the mounting of the toothbrush head using the apparatus for mounting and dismounting the toothbrush head shown in FIG. 18, in which the toothbrush head has been removed from the toothbrush mounted on the toothbrush handle;

figures 31 and 32 are respectively a perspective view and a schematic cross-sectional view showing the disassembly of the toothbrush head using the apparatus for assembling and disassembling a toothbrush head shown in figure 18, in which the toothbrush head mounted on the toothbrush handle is placed in the toothbrush head disassembly cavity;

FIG. 33 is a schematic cross-sectional view showing the disassembly of the toothbrush head using the apparatus for mounting and disassembling a toothbrush head shown in FIG. 18, wherein the toothbrush head has been disassembled from the toothbrush handle;

FIG. 34 is a perspective view showing the disassembly of the toothbrush head using the apparatus for mounting and disassembling a toothbrush head shown in FIG. 18, in which the handle and the toothbrush head have been separately removed; and

figure 35 is a variation of the device for mounting and dismounting the toothbrush head shown in figures 18-26.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to examples. It will be understood by those skilled in the art that these exemplary embodiments are not meant to form any limitation of the present invention.

Fig. 1 is a schematic perspective view of a toothbrush according to a first preferred embodiment of the present invention, and fig. 2 is another schematic perspective view of a toothbrush according to a first preferred embodiment of the present invention. As shown in fig. 1 and 2, a toothbrush 1 according to a first preferred embodiment of the present invention includes a handle 3 and a head 5 detachably mounted to the handle 3.

Fig. 4 is a schematic perspective view of a toothbrush handle of a toothbrush according to a first preferred embodiment of the present invention, and fig. 5 is another schematic perspective view of the toothbrush handle of the toothbrush according to the first preferred embodiment of the present invention. As shown in fig. 4 and 5, handle 3 includes a grip portion 3a to be gripped by a user and a head mounting portion 3b connected to grip portion 3 a. Although the grip portion 3a and the head mounting portion 3b may be formed separately and then assembled together, the grip portion 3a and the head mounting portion 3b are preferably formed integrally. Conventional toothbrush handles are typically made of plastic materials, but plastic materials tend to mold, are difficult to clean, and are not durable for extended periods of time. According to the present invention, the toothbrush handle is made at least partially (e.g., the grip portion or the head mounting portion) of a metal material, such as stainless steel or a metal material of silver, copper, silver alloy, or copper alloy. Preferably, the entire handle is made of a metal material. Compared with plastic materials, the toothbrush handle made of metal materials is not moldy, is easy to clean, is more sanitary and durable, and can be sterilized through high-temperature cooking and other modes. When the toothbrush head installation department adopted metal materials such as silver, copper, silver alloy or copper alloy to make, because silver, copper, silver alloy or copper alloy etc. can release metal ion and have bactericidal effect, consequently, adopt the utility model discloses a toothbrush can also play the effect of disinfecting to oral cavity and tooth when brushing teeth. To facilitate grasping, various kinds of non-slip ribs 6 may be formed on the grasping portion 3a of the handle 3. In addition, the toothbrush handle may be formed with various identification patterns, such as various constellation patterns, landscape patterns (especially zodiac patterns), sports patterns, etc., so as to be easily distinguished when a plurality of persons use the same type of toothbrush in a household.

A first hole 7 is formed through the head mounting portion 3 b. Although in the preferred embodiment the first holes 7 are shown as four and are symmetrically distributed about the longitudinal axis AA of the handle, it will be appreciated that the number of first holes 7 may be less than four, for example three, two or even one, and that the number of first holes 7 may of course also be more than four, and that other distributions may also be used, depending on the actual requirements. Furthermore, although the first hole 7 is shown as a through-going hole, it should be understood that the first hole may also be a blind hole.

A second hole 9 may be further formed through the head mounting portion 3 b. Although in the preferred embodiment the second holes 9 are shown as three and distributed along the longitudinal axis AA of the toothbrush, it will be understood that the number of second holes 9 may be less than three, for example two or even one, that the number of second holes 9 may of course also be more than three, and that other distributions may also be used, depending on the actual needs.

Figures 6-11 schematically illustrate the head of a toothbrush according to a first preferred embodiment of the invention. As shown in Figs. 6 to 11, a brush head 5 of a toothbrush according to a first preferred embodiment of the present invention comprises a brush head body 11, and bristles 13 mounted to a first side 11a of the brush head body 11. According to the present invention, the brush head 5 further comprises a projected insertion part 15 formed on a second side 11b of the brush head body 11 opposite to the first side 11 a. The number and distribution of the protruding socket portions 15 on the head 5 correspond to the number and distribution of the first holes 7 on the head mounting portion 3b of the handle 3 so that each protruding socket portion 15 on the head 5 can be plugged into a corresponding first hole 7 on the head mounting portion 3b of the handle 3. As a result, the head 5 can be reliably attached to the head attachment portion 3b of the handle 3, as shown in FIGS. 1, 1a, 1b and 2.

Although the head 5 can be securely attached to the head mounting portion 3b of the handle 3 by forming a close fit between the projected insertion portion 15 and the first hole 7, in order to facilitate the attachment and detachment of the head 5 to and from the handle 3 more easily, as shown in fig. 3b, the projected insertion portion 15 on the head 5 includes a root portion 15a extending from the head body 11 and an end portion 15b integral with the root portion 15a but enlarged in size, and a cut-away portion 15c extending from the end portion 15b to the head body 11 is further formed in the projected insertion portion 15. Correspondingly, the first hole 7 comprises a first portion 7a corresponding to the root 15a of the projecting peg 15, and a second portion 7b corresponding to the end 15b of the projecting peg 15 and having a larger size than the first portion 7 a. The radial dimension of the root 15a of the projecting spigot 15 is selected to be substantially the same as or slightly smaller than the radial dimension of the first portion 7a of the first bore 7, and the radial dimension of the end 15b of the projecting spigot 15 is selected to be substantially the same as or slightly smaller than the radial dimension of the second portion 7b of the first bore 7. The head body 11 and the projecting insert part 15 and/or the handle 3 are typically injection moulded from a plastics material. When the spigot 15 is inserted into the corresponding first hole 7 in the head mounting portion 3b of the handle 3, the end 15b of the spigot 15 is pressed against the side wall of the first hole 7, and the cut-away portion 15c allows two portions of the end 15b to approach each other and become smaller in radial dimension to pass through the first portion 7a of the first hole 7. Once the end 15b of the protruding spigot 15 passes through the first portion 7a of the first hole 7, the end 15b of the protruding spigot 15 enters the second portion 7b of the first hole 7 and returns to its original size, so that the head 5 and handle 3 can be securely locked together, as shown in figure 3 a. Although in the preferred embodiment the cut-out 15c is shown as a transverse cut through the side wall of the projecting spigot 15, the cut-out 15c could be formed as a cross, petal, hollow or any other suitable shape which, when compressed, enables the radial dimension of the end 15b of the projecting spigot 15 to be reduced.

Preferably, the second side 11b of the head body 11 is formed with a smooth surface except for the protruding jaw 15, and the head mounting part 3b of the handle 3, which is in contact with the head, is also formed with a smooth surface. In this way, on the one hand, material can be saved; on the other hand, when the brush head is mounted to the head mounting portion 3b of the handle 3, the brush head can be closely combined with the head mounting portion 3b of the handle 3 without a gap, so that the assembled toothbrush is not liable to accumulate dirt and is easy to clean.

Figures 6-11 also show in detail the distribution of the bristles 13 on the toothbrush head 5 according to the first preferred embodiment of the invention. The bristles 13 may be generally divided into three groups, i.e., a first group of bristles 13a arranged at the center of the head body 11, and second and third groups of bristles 13b and 13c symmetrically arranged at both sides of the first group of bristles along the longitudinal direction of the head body 11. Each set of bristles comprises a plurality of bristle tufts grouped together by a plurality of bristles. The bristle tufts of the first group of bristles 13a are arranged in a plurality of linear rows and spaced from one another longitudinally of the head body 11, four rows being shown in the preferred embodiment, but it will be appreciated that they could be arranged in fewer or more than four rows. Each bristle tuft of the first set of bristles 13a is also disposed generally parallel to a plane P passing through the longitudinal axis BB of the head body 11 and generally perpendicular to the first side 11a of the head body 11. The bristle tufts of the second and third sets of bristles 13b and 13c are arranged in a plurality of linear rows and spaced apart from one another longitudinally of the head body 11, two rows each being shown in the preferred embodiment, but it will be appreciated that they could be arranged in fewer or more than two rows. Each bristle tuft of the second and third sets of bristles 13b, 13c is also disposed generally obliquely outwardly relative to the plane P so that the gap between the second and third sets of bristles 13b, 13c and the first set of bristles 13a increases progressively in a direction away from the head body 11 along the plane P, as shown in figure 9. Although in a preferred embodiment the row of tufts of the second and third groups of bristles 13b, 13c remote from the first group of bristles 13a is inclined outwardly at a greater angle than the row of tufts of the bristles adjacent to the first group of bristles 13a, it is also possible that the row of tufts of the second and third groups of bristles 13b, 13c remote from the first group of bristles 13a is inclined outwardly at the same angle as the row of tufts adjacent to the first group of bristles 13 a. The arrangement of the bristles is such that the first group of bristles 13a can penetrate deeper into the interdental spaces to remove debris between the interdental spaces during brushing, thereby improving the cleaning effect of the teeth, while the second group of bristles 13b and the third group of bristles 13c can massage the gums. More preferably, the ends of the bristle tufts of the first, second and third sets of bristles 13a, 13b, 13C, which are remote from the head body 11, are located generally on the concave arcuate surface C when viewed from the end side of the head 5, so that the bristles better conform to the teeth and gums, to further enhance cleaning and massaging.

Figures 12-17 illustrate a toothbrush head according to a second preferred embodiment of the invention. The head of the second preferred embodiment shown in figures 12-17 is substantially identical to that of the first preferred embodiment shown in figures 1-11, except for the slightly different arrangement of the bristles. For the sake of simplicity, only the toothbrush head of the second preferred embodiment is described below as being different from the toothbrush head of the first preferred embodiment, and detailed descriptions of the other parts are omitted.

As shown in Figs. 12 to 17, the toothbrush head 5 according to the first preferred embodiment of the present invention includes a fourth group of bristles 13d arranged at an end of the head body 11 remote from the handle 3, in addition to the first group of bristles 13a, the second group of bristles 13b and the third group of bristles 13 c. In the preferred embodiment, the fourth set of bristles 13d includes two rows of arcuately arranged bristle tufts, but it will be appreciated that one or more rows of arcuately arranged bristle tufts may be provided. More preferably, each bristle tuft of the fourth set of bristles 13d is disposed obliquely outwardly with respect to the center of the arc. By providing the fourth group of bristles 13d, the cleaning of teeth and the massaging effect of gums can be further improved.

Although the head may be separated from the handle by means of a tool which passes directly through the second aperture 9 in the handle, the invention proposes a device 20 which is specifically designed to mount and dismount the head. As shown in Figs. 18-26, the apparatus 20 for mounting and dismounting the toothbrush head includes a lower housing 21 and an upper housing 23 pivotally mounted to the lower housing 21. The upper housing 23 pivots relative to the lower housing 21 to open or close the device 20 for mounting and dismounting the toothbrush head. The apparatus 20 for mounting and dismounting the brush head further comprises a lining member 25 mounted to the lower housing 21, the lining member 25 being formed with a brush head mounting cavity 27, the brush head mounting cavity 27 being for receiving the brush head 5 to be mounted, but being formed with a stepped portion 27a on an inner wall of the brush head mounting cavity 27. In the preferred embodiment, the stepped portions 27a are formed at both longitudinal ends of the brush head mounting cavity 27, but it is understood that it is also possible that the stepped portions 27a are formed at both longitudinal sides of the brush head mounting cavity 27. As shown in fig. 28, when the brush head 5 is placed in the brush head mounting cavity 27, the edge portion of the brush head body 11 of the brush head 5 is supported on the stepped portion 27a, thereby holding the brush head 5 in position in the brush head mounting cavity 27. Preferably, the lining member 25 may be further formed with a first groove 29 communicating with the head mounting cavity 27 and receiving a portion of the handle 3.

The lining member 25 is also formed with a head detaching cavity 31, and the head detaching cavity 31 is used to accommodate a head mounted on the handle and a part of the handle. A stepped portion 31a is also formed on the inner wall of the brush head detaching cavity 31. In the preferred embodiment, the stepped portions 31a are formed at both longitudinal ends of the head disassembly chamber 31, but it is understood that it is also possible that the stepped portions 31a are formed at both longitudinal sides of the head disassembly chamber 31. As shown in fig. 32, when the head 5 mounted on the handle is placed in the head detaching cavity 31, the handle 3 is supported on the stepped portion 31a but the head body 11 of the head 5 is positioned inside the stepped portion 31a, thereby holding the head 5 mounted on the handle in place in the head detaching cavity 31. Preferably, the lining member 25 may be further formed with a second groove 33 communicating with the head detaching cavity 31 and receiving a portion of the handle 3.

The lining member 25 may also be formed with a cleaning brush receiving chamber 35 for receiving a cleaning brush 37. The cleaning brush 37 may be used for cleaning the toothbrush, particularly for removing dirt that may be caught between the head 5 and the handle 3. In the preferred embodiment, the cleaning brush accommodating chamber 35 is formed at the end sides of the head mounting chamber 27 and the head detaching chamber 31, but it should be understood that the cleaning brush accommodating chamber 35 may be formed at other positions, for example, between the head mounting chamber 27 and the head detaching chamber 31.

The lining member 25 may be further formed with a brush head accommodating cavity 39 for accommodating the spare brush head 5. A through hole 41 corresponding to the protruding socket 15 of the head body 11 may be formed on the bottom wall of the head accommodating chamber 39 for accommodating the protruding socket 15 of the head body 11, so that the spare brush head 5 is stably placed in the head accommodating chamber 39. In the preferred embodiment, there are two head accommodating cavities 39 and are respectively disposed at both sides of the head mounting cavity 27 and the head detaching cavity 31, but it is understood that the number of head accommodating cavities 39 may be more or less than two and may be disposed at other positions.

The lower case 21 is formed with a boss 45 having a central cavity 43 and a projection 49 having a catch 47. The underside of the lining part 25 is correspondingly formed with positioning studs 51 and projections 55 with openings 53. By inserting the locating posts 51 on the underside of the lining component 25 into the central cavities 43 of the posts 45 on the lower housing 21, the lining component 25 can be quickly located relative to the lower housing 21. By further pressing the lining member 25 downward, the catching portions 47 of the projections 49 on the lower case 21 can be received in the openings 53 of the projections 55 on the bottom side of the lining member 25, thereby reliably mounting the lining member 25 to the lower case 21, as shown in fig. 26. It should be understood that the lining member 25 may also be mounted to the lower housing 21 in other ways. Further, although in the preferred embodiment, the lining member 25 is formed separately from the lower case 21, it is also possible that the lining member 25 is formed integrally with the lower case 21.

A pressing portion 57 is formed to protrude from the surface of the upper case 23 facing the lower case 21 or the lining member 25 at a position corresponding to the brush head attachment cavity 27. In the preferred embodiment, the pressing part 57 is formed in a hollow lattice shape, but it may have other shapes as long as it can apply pressure to the handle. A protruding push post 59 is formed on the surface of the upper case 23 facing the lower case 21 or the lining member 25 at a position corresponding to the head detaching cavity 31, the push post 59 corresponding to the number and position of the second holes 9 on the toothbrush handle 3 and being freely passed through the second holes 9. In addition, locking means, such as a projection 61 formed on the lower housing 21 and a recess formed on the upper housing 23 for receiving the projection 61, are formed on the lower housing 21 and the upper housing 23 to securely lock the lower housing 21 and the upper housing 23 together when the device 20 for mounting and dismounting the brush head is not in use. The various components of the device 20 for mounting and dismounting the toothbrush head may be generally injection moulded from plastics material.

Figures 27-30 are schematic views showing the mounting of the toothbrush head 5 using the device 20 for mounting and dismounting the toothbrush head. The process of mounting the brush head using the apparatus for mounting and dismounting a brush head 20 will be described below with reference to fig. 27 to 30. First, the upper housing 23 is pivoted relative to the lower housing 21 to open the device 20 for attachment and detachment of the brush head, and then the brush head 5 is placed in the brush head mounting cavity 27 with the projected insertion part 15 on the brush head body 11 directed toward the upper side, as shown in fig. 27. Next, handle 3 is placed on head 5 so that first hole 7 in head mounting portion 3b of handle 3 is aligned with projecting spigot 15 on head 5, as shown in figure 28. Subsequently, the upper case 23 is pivoted to a position closed with the lower case 21, as shown in fig. 29. Next, upper housing 23 is pressed downwardly so that the pressing parts 57 on upper housing 23 contact the head mounting part 3b of handle 3 and apply a downward force to the head mounting part 3b of handle 3. Since the head body 11 is supported on the stepped portion 27a of the head mounting cavity 27, the protruding insertion part 15 of the head 5 passes through the first hole 7 of the head mounting part 3b, thereby mounting the head 5 to the handle 3. Finally, the upper housing 23 is pivoted again relative to the lower housing 21 to open the device 20 for mounting and dismounting the brush head, and the already assembled toothbrush 1 is removed and ready for use, as shown in fig. 30.

Fig. 31 to 34 are schematic views showing the detachment of the brush head 5 using the device for attaching and detaching a brush head 20. The process of removing the toothbrush head using the device for mounting and removing a toothbrush head 20 will be described below with reference to fig. 31-34. First, the upper case 23 is pivoted with respect to the lower case 21 to open the apparatus 20 for mounting and dismounting the brush head, and then the brush head 5 mounted on the handle 3 is placed in the brush head dismounting cavity 31 with the handle 3 directed to the upper side, as shown in fig. 31 and 32. Then, pivoting the upper housing 23 to a position closed with the lower housing 21, presses the upper housing 23 downwardly so that the push post 59 on the upper housing 23 passes through the second aperture 9 on the head mounting portion 3b, contacts the head body 11 and applies a downward force to the head body 11. Since the handle 3 is supported on the stepped portion 31a of the head removing cavity 31, the push-button 59 of the upper case 23 disengages the protruding engagement portion 15 of the brush head 5 from the first hole 7 of the head mounting portion 3b, thereby removing the brush head 5 from the handle 3, as shown in fig. 33. Finally, the upper case 23 is pivoted again with respect to the lower case 21 to open the apparatus 20 for mounting and dismounting the brush head, and the separated toothbrush handle 3 and brush head 5 are taken out, as shown in fig. 34.

Figure 35 is another variation of the device for mounting and dismounting the toothbrush head shown in figures 18-26. The apparatus for mounting and dismounting the toothbrush head shown in figure 35 differs from the apparatus for mounting and dismounting the toothbrush head described in connection with figures 18-26 only in that: it does not include a head receiving cavity for receiving a spare toothbrush head.

Further, it should be understood that the arrangement of the bristles of the spare toothbrush head stored in the head receiving cavity is not limited to the arrangement shown in the preferred embodiment.

The utility model discloses a device for installing and dismantling toothbrush head is installed and is dismantled toothbrush head and make toothbrush head's installation and dismantlement can laborsaving, simple and convenient, go on high-efficiently.

According to the utility model discloses a toothbrush and according to the utility model discloses a device for installing and dismantling toothbrush head can constitute a toothbrush suit, wholly sell for the consumer. In the toothbrush set, the toothbrush and the device for mounting and dismounting the toothbrush head can be separately placed, and the toothbrush can also be placed in the device for mounting and dismounting the toothbrush head. When the toothbrush is placed in the device for mounting and dismounting the head of the toothbrush, the handle and the head of the toothbrush may be separately placed in the device for mounting and dismounting the head of the toothbrush, or may be assembled together and then placed in the device for mounting and dismounting the head of the toothbrush.

While the invention has been described in detail in connection with the preferred embodiments thereof, it is to be understood that such detail is solely for that purpose and that no limitation of the invention is thereby intended. For example, the protruding socket may be formed on the handle, and a hole for receiving the protruding socket is formed on the head body. The device for mounting and dismounting the toothbrush head can be without a toothbrush head mounting cavity and a corresponding pressing part or without a toothbrush head dismounting cavity and a corresponding pushing column, so that the device has only one function of mounting and dismounting. In summary, the scope of the present invention is defined by the claims.

Claims (22)

1. A toothbrush (1) comprising:

a toothbrush handle (3), said toothbrush handle (3) comprising a grip portion (3a) and a head mounting portion (3b) connected to said grip portion (3a), said toothbrush handle (3) being at least partially made of a metallic material;

a toothbrush head (5), the toothbrush head (5) comprising a toothbrush head body (11) and bristles (13) mounted to a first side (11a) of the toothbrush head body (11), the toothbrush head body (11) further having a second side (11b) opposite the first side (11 a);

its characterized in that toothbrush head installation department (3b) with toothbrush head body (11) be formed with first hole (7) on one in second side (11b) toothbrush head installation department (3b) with toothbrush head body (11) be formed with corresponding protruding grafting portion (15) on another in second side (11b), through with protruding grafting portion (15) peg graft in first hole (7), toothbrush head (5) are installed by detachably on toothbrush head installation department (3 b).

2. The toothbrush according to claim 1, characterized in that the entire handle (3) is made of a metal material.

3. The toothbrush of claim 1, wherein the metallic material comprises stainless steel, silver, copper, a silver alloy, or a copper alloy.

4. The toothbrush according to claim 1, wherein the grip part (3a) of the handle (3) is formed with an anti-slip relief or a recognition pattern.

5. A toothbrush according to claim 1, characterised in that the second side (11b) of the head body (11) is formed with a smooth surface except for the projecting insert (15), and the side of the head mounting portion (3b) which contacts the head is also formed with a smooth surface.

6. The toothbrush according to claim 1, characterized in that the first hole (7) is a through hole formed on the head mounting part (3b), and the protruding insertion part (15) is formed on the second side (11b) of the head body (11).

7. The toothbrush according to claim 6, characterized in that there are four of the first holes (7) distributed symmetrically with respect to the longitudinal axis (AA) of the toothbrush handle (3).

8. The toothbrush according to claim 6, characterized in that the protruding socket (15) includes a root portion (15a) extending from the head body (11) and an end portion (15b) integral with the root portion (15a) but enlarged in size, and a cut-away portion (15c) is further formed on the protruding socket (15).

9. The toothbrush according to claim 6, characterized in that the protruding socket (15) includes a root portion (15a) extending from the head body (11) and an end portion (15b) integral with the root portion (15a) but enlarged in size, and a cut-away portion (15c) is further formed on the protruding socket (15), and the first hole (7) includes a first portion (7a) corresponding to the root portion (15a) and a second portion (7b) corresponding to the end portion (15b) and larger in size than the first portion (7 a).

10. The toothbrush according to claim 9, characterized in that the radial dimension of the root (15a) is chosen to be the same as the radial dimension of the first portion (7a) or slightly smaller than the radial dimension of the first portion (7a), and the radial dimension of the end (15b) is chosen to be the same as the radial dimension of the second portion (7b) or slightly smaller than the radial dimension of the second portion (7 b).

11. A toothbrush according to claim 1 characterised in that the bristles (13) comprise a first set of bristles (13a) arranged centrally of the head body (11) and second and third sets of bristles (13b, 13c) symmetrically arranged along the longitudinal direction of the head body (11) on either side of the first set of bristles (13a), each set comprising a plurality of bristle tufts grouped together by a plurality of bristles, the bristle tufts of the first set of bristles (13a) being arranged in a plurality of columns and spaced apart from one another longitudinally of the head body (11), each bristle tuft of the first set of bristles (13a) being arranged parallel to a plane (P) passing through a longitudinal axis (BB) of the head body (11) and perpendicular to the first side (11a), the bristle tufts of the second and third sets of bristles (13b, 13c) being arranged along the head body (11) of the head body (11) Longitudinally in rows and spaced from each other, each bristle tuft of the second and third sets of bristles (13b, 13c) being disposed obliquely outwardly with respect to the plane (P) such that the gap between the second and third sets of bristles (13b, 13c) and the first set of bristles (13a) increases progressively in a direction away from the head body (11) along the plane (P).

12. The toothbrush according to claim 11, characterized in that the bristles of the second group (13b) and the bristles of the third group (13c) each comprise at least two rows of bristle tufts, of which the row remote from the bristles of the first group (13a) is inclined outwardly at a greater angle than the row closer to the bristles of the first group (13 a).

13. The toothbrush according to claim 11, characterized in that the bristles (13) further comprise a fourth group of bristles (13d) arranged at an end of the head body (11) remote from the handle (3), the fourth group of bristles (13d) comprising at least one row of arcuately arranged bristle tufts.

14. The toothbrush according to claim 13, characterized in that each bristle tuft of the fourth group of bristles (13d) is arranged obliquely outwardly with respect to the center of the arc.

15. A toothbrush according to claim 1, wherein the head mounting portion (3b) is further formed with a second hole (9) therethrough.

16. An apparatus for mounting and dismounting a head of a toothbrush (5) according to any one of claims 1 to 14 to and from a handle (3), wherein the head mounting portion (3b) is further formed with a second hole (9) therethrough, the apparatus comprising:

a lower case (21);

an upper housing (23) pivotally mounted to the lower housing (21); and

a lining member (25) provided in the lower case (21);

wherein a head mounting cavity (27) is formed on the inside wall of the head mounting cavity (27), a stepped portion (27a) supporting an edge portion of the head body (11) is formed on the inside wall of the head mounting cavity (27), a protruding pressing portion (57) is formed on a surface of the upper case (23) facing the inside wall of the head mounting cavity (25) at a position corresponding to the head mounting cavity (27), and when a head (5) is supported in the head mounting cavity (27) through the stepped portion (27a) of the head mounting cavity (27) and the protruding insertion portion (15) is aligned with the first hole (7), a force can be applied to the head mounting portion (3b) through the pressing portion (57) to insert the protruding insertion portion (15) into the first hole (7); and

a head detaching cavity (31) is formed on the inside wall of the head detaching cavity (31), a stepped portion (31a) for supporting the toothbrush handle (3) is formed on the inside wall of the head detaching cavity (31), a protruding push-button post (59) is formed on the surface of the upper case (23) facing the inside wall of the inside wall (25) at a position corresponding to the head detaching cavity (31), and when a head (5) mounted on the toothbrush handle (3) is placed in the head detaching cavity (31) and the toothbrush handle (3) is supported by the stepped portion (31a) of the head detaching cavity (31), it is possible to apply a force to the head body (11) by the push-button post (59) passing through the second hole (9) to make the protruding insertion part (15) come out of the first hole (7).

17. An apparatus for attachment and detachment of a toothbrush head according to claim 16, characterized in that the lining member (25) is further formed with a groove (29) communicating with the toothbrush head mounting cavity (27) and receiving a portion of the toothbrush handle (3).

18. The apparatus for attaching and detaching a brush head according to claim 16, wherein the lining member (25) is further formed with a groove (33) communicating with the brush head detaching cavity (31) and receiving a portion of the handle (3).

19. An apparatus for attaching and detaching a toothbrush head according to claim 16, characterized in that the lining member (25) is further formed with a cleaning brush accommodating chamber (35).

20. An apparatus for attaching and detaching a brush head according to claim 16, wherein the lining member (25) is further formed with a brush head accommodating chamber (39) for accommodating a spare brush head (5).

21. An apparatus for mounting and dismounting a toothbrush head according to claim 16, characterised in that the lining member (25) is formed separately from the lower housing (21) and is mounted to the lower housing (21).

22. A toothbrush kit, characterized in that the toothbrush kit comprises:

the toothbrush of any one of claims 1-15; and

an apparatus for mounting and dismounting a toothbrush head as claimed in any of claims 16 to 21.

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