Brush handle structure and electric toothbrush

Abstract

The utility model discloses a brush handle structure and an electric toothbrush. The brush handle structure comprises a first handle section, a second handle section and a third handle section, wherein the first handle section and the third handle section are rotationally connected to the two ends of the second handle section respectively; the first handle section and the third handle section are driven to rotate relative to the second handle section, so that the brush handle structure is switched between a folded state and a use state; in the using state, the first handle section, the second handle section and the third handle section are arranged along the same center line. In the folded state, the first handle section and the third handle section are arranged in parallel, the first handle section and the third handle section are connected to different ends of the second handle section respectively, and the first handle section and the third handle section extend in the same direction away from the second handle section. The length of the brush handle structure in the folding state can be shortened to one third of that in the using state, and the portability of the brush handle structure is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to toothbrush technical field especially, relate to a brush handle structure and electric toothbrush. BACKGROUND

[0002] In the related art, the electric toothbrush is in the form of a long strip, which occupies a large storage space when carrying the electric toothbrush. In order to reduce the occupied space, a toothbrush capable of folding is disclosed in a Chinese patent with the application number 202210372351.X (the patent name is a portable multifunctional toothbrush). The brush head of the toothbrush can rotate relative to the brush handle, so that the brush head is attached to the side surface of the brush handle after rotating 180°, thereby reducing the length of the toothbrush.

[0003] However, the length of the toothbrush with this structure in the folded state is still relatively long, and the portability needs to be further improved. SUMMARY

[0004] The utility model aims at at least solving one of the technical problems existing in the prior art. To this end, the utility model provides a brush handle structure, which can further shorten the length in the folded state and further improve the portability of the brush handle structure.

[0005] The utility model further provides an electric toothbrush with the above brush handle structure.

[0006] According to the brush handle structure of the first aspect embodiment of the utility model, the brush handle structure comprises a first handle segment, a second handle segment and a third handle segment, wherein:

[0007] The first handle segment and the third handle segment are respectively rotationally connected to the two ends of the second handle segment. The first handle segment and the third handle segment can be rotated relative to the second handle segment under the action of a driving force, so as to switch the brush handle structure between the folded state and the use state. In the use state, the first handle segment, the second handle segment and the third handle segment are arranged along the same center line. In the folded state, the first handle segment and the third handle segment are arranged in parallel, and the first handle segment and the third handle segment are respectively connected to different ends of the second handle segment, and the first handle segment and the third handle segment are arranged in the same direction away from the second handle segment.

[0008] According to the brush handle structure of the utility model embodiment, at least the following beneficial effects are achieved:

[0009] The length of the brush handle structure in the folded state can be shortened to the interval of one-half to one-third of the length in the use state, further improving the portability of the brush handle structure compared with the prior art. It should be noted that when the brush handle structure is applied to a toothbrush, the brush head and the brush handle structure can be arranged in a detachable connection form, thereby further shortening the length in the folded state.

[0010] According to some embodiments of the present application, the first handle section has a first inclined surface, one end of the second handle section has a second inclined surface, and the first inclined surface and the second inclined surface are arranged in abutment; wherein the rotation axis of the first handle section is arranged perpendicular to the second inclined surface compared with the second handle section.

[0011] The third handle section has a third inclined surface, the other end of the second handle section has a fourth inclined surface, and the third inclined surface and the fourth inclined surface are arranged in abutment; wherein the rotation axis of the third handle section is arranged perpendicular to the fourth inclined surface compared with the second handle section.

[0012] According to some embodiments of the present application, the second inclined surface and the fourth inclined surface are arranged perpendicular to each other.

[0013] According to some embodiments of the present application, the brush handle structure further comprises a first rotation shaft and a second rotation shaft, the first rotation shaft is fixedly connected to the second inclined surface and rotationally connected to the first handle section, or the first rotation shaft is fixedly connected to the first inclined surface and rotationally connected to the second handle section.

[0014] The second rotation shaft is fixedly connected to the third inclined surface and rotationally connected to the second handle section, or the second rotation shaft is fixedly connected to the fourth inclined surface and rotationally connected to the third handle section.

[0015] According to some embodiments of the present application, either one of the first inclined surface and the second inclined surface is provided with a first limiting protrusion, and the other is provided with a first limiting groove, and the first limiting protrusion and the first limiting groove are matched; when the first handle section rotates compared with the second handle section, the first limiting protrusion slides in the first limiting groove.

[0016] In the use state, the first limiting protrusion abuts against one end groove wall of the first limiting groove, and in the folded state, the first limiting protrusion abuts against the other end groove wall of the first limiting groove.

[0017] According to some embodiments of the utility model, one of the third inclined surface and the fourth inclined surface is provided with a second limiting protrusion, the other is provided with a second limiting groove, the second limiting protrusion and the second limiting groove cooperate, when the third handle section rotates compared with the second handle section, the second limiting protrusion slides in the second limiting groove;

[0018] Wherein, in the use state, the second limiting protrusion abuts with one end groove wall of the second limiting groove, in the folding state, the second limiting protruous abuts with the other end groove wall of the second limiting groove.

[0019] According to some embodiments of the utility model, the second inclined surface is provided with a first threading hole, the first inclined surface is provided with a first threading groove, the first threading hole and the first threading groove are all used for the connection wire to pass through, when the first handle section rotates compared with the second handle section, the first threading hole and the first threading groove keep conductive;

[0020] And / or, the fourth inclined surface is provided with a second threading hole, the third inclined surface is provided with a second threading groove, the second threading hole and the second threading groove are all used for the connection wire to pass through, when the third handle section rotates compared with the second handle section, the second threading hole and the second threading groove keep conductive.

[0021] According to some embodiments of the utility model, the first handle section and the third handle section are respectively hinged with the second handle section, and are arranged in the folding state, the first handle section, the second handle section and the third handle section are located on the first plane, the rotation axis of the first handle section compared with the second handle section is perpendicular to the first plane, and the rotation axis of the third handle section compared with the second handle section is perpendicular to the first plane.

[0022] The electric toothbrush according to the second aspect of the utility model comprises:

[0023] A brush head;

[0024] The brush handle structure according to any one of the above embodiments, the first handle section of the brush handle structure further comprises a mounting portion, and the brush head is detachably connected with the mounting portion.

[0025] According to some embodiments of the utility model, the electric toothbrush further comprises a driving member and a power supply, the driving member is arranged in the first handle section, the power supply is arranged in the third handle section, and the driving member and the power supply are electrically connected through a connection wire.

[0026] Additional aspects and advantages of the utility model will be in part apparent and in part pointed out hereinafter in the description. BRIEF DESCRIPTION OF DRAWINGS

[0027] The utility model will be further described below in combination with the drawings and embodiments, in which:

[0028] Figure 1 It is structure schematic drawing of the brush handle structure of the utility model embodiment under the using state;

[0029] Figure 2 It is structure schematic drawing of the brush handle structure of the utility model embodiment under the folding state;

[0030] Figure 3 It is the explosion schematic drawing of the brush handle structure of the utility model embodiment under the folding state;

[0031] Figure 4 It is the explosion schematic drawing of the brush handle structure of the utility model embodiment under the folding state from another visual angle;

[0032] Figure 5 It is the schematic drawing of the second inclined plane of the brush handle structure of the utility model embodiment under the using state;

[0033] Figure 6 It is the schematic drawing of the second inclined plane of the brush handle structure of the utility model embodiment under the folding state;

[0034] Figure 7 It is structure schematic drawing of the brush handle structure of another utility model embodiment under the using state and folding state.

[0035] Reference signs:

[0036] First handle section 100;Main body part 101;End cap part 102;First inclined plane 110;First limiting slot 111;First threading slot 112;Mounting part 120;

[0037] Second handle section 200;Second inclined plane 210;First pivot 211;First limiting protrusion 212;First threading hole 213;Screw hole 214;Fourth inclined plane 220;Second limiting slot 221;Second threading slot 222;

[0038] Third handle section 300;Third inclined plane 310;Second pivot 311;Second limiting protrusion 312;Second threading hole 313. DETAILED DESCRIPTION

[0039] The embodiments of the utility model will be described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as the limitation of the utility model.

[0040] In the description of the utility model, it needs to be understood that, if the direction description, such as the direction or position relation indicated by up, down, front, back, left, right etc. for the direction or position relation shown in the drawing, is only for the convenience of describing the utility model and simplifying the description, and is not indicated or implied that the device or element must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as a limitation of the utility model.

[0041] In the description of the utility model, the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, more than, etc. are not included in the number, above, below, etc. are included in the number. If the first, second is described, it is only used for distinguishing technical features for the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0042] In the description of the utility model, unless otherwise specified, the words such as setting, installation, connection should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0043] In the description of the utility model, the description of reference terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0044] To solve the above problems, the first aspect embodiment of the application proposes a brush handle structure, as shown in Figure 1 and Figure 2 The brush handle structure is three-section type, including a first handle section 100, a second handle section 200 and a third handle section 300. It should be noted that in other embodiments, the brush handle structure can also be five-section type, seven-section type, etc., which all include the first handle section 100, the second handle section 200 and the third handle section 300 described in the application. The number of changes is an adaptive improvement that can be made by those skilled in the art, which will not be described here.

[0045] The first handle section 100 and the third handle section 300 are respectively connected to the two ends of the second handle section 200, the first handle section 100 is used to connect the brush head, and the third handle section 300 is mainly used to facilitate the user to hold. The second handle section 200 plays a role in connecting the first handle section 100 and the third handle section 300. The brush handle structure includes Figure 2the folding state and as Figure 1 the using state. The user can hold the first handle section 100 and drive the first handle section 100 to rotate relative to the second handle section 200, and then hold the third handle section 300 and drive the third handle section 300 to rotate relative to the second handle section 200. It can be understood that the rotation sequence between the first handle section 100 and the third handle section 300 is not fixed, and the third handle section 300 can be rotated first and then the first handle section 100 is rotated. Also, the first handle section 100 and the second handle section 200 are relatively rotated, that is, the user can also hold the second handle section 200 and rotate relative to the first handle section 100.

[0046] In the using state, as Figure 1 shown, the first handle section 100, the second handle section 200 and the third handle section 300 are arranged along the same center line, that is, the first handle section 100, the second handle section 200 and the third handle section 300 are arranged in a straight line type, thereby facilitating the user to hold and use the toothbrush. In the folding state, as Figure 2 shown, the first handle section 100 and the third handle section 300 are bent relative to the shape in the using state, the first handle section 100 is arranged to intersect with the second handle section 200, preferably, the first handle section 100 is arranged to be perpendicular to the second handle section 200. The third handle section 300 is arranged to intersect with the second handle section 200, preferably, the third handle section 300 is arranged to be perpendicular to the second handle section 200, and then the first handle section 100 and the third handle section 300 are arranged in parallel. The first handle section 100 and the third handle section 300 are respectively connected to different ends of the second handle section 200, and the first handle section 100 and the third handle section 300 are arranged to extend away from the second handle section 200 in the same direction. As Figure 2 shown, the upper end of the second handle section 200 is connected to the right end of the first handle section 100, and the lower end of the second handle section 200 is connected to the right end of the third handle section 300.

[0047] For the subsequent description, the length direction of the first handle section 100 in the using state is defined as the first direction, and the length direction of the first handle section 100 in the folding state is defined as the second direction. The length of the brush handle structure in the using state is the sum of the lengths of the first handle section 100, the second handle section 200 and the third handle section 300, and in the folding state, the length of the brush handle structure in the first direction is the length of the second handle section 200, which greatly reduces the length of the brush handle structure in the first direction, and the degree of shortening in the first direction depends on the proportion of the length of the second handle section 200 in the length of the brush handle structure in the using state.

[0048] If the lengths of the first handle section 100, the second handle section 200 and the third handle section 300 are equal, the length of the brush handle structure in the folding state is one third of the length in the using state. As Figure 2As shown, if the length of the second handle section 200 is less than the length of the first handle section 100, and the length direction of the brush handle structure in the folded state is the second direction, i.e. the length direction of the first handle section 100 or the third handle section 300, the length of the brush handle structure in the folded state is within the interval of one-half to one-third of the length in the use state.

[0049] Based on the above, it can be found that the length of the brush handle structure in the folded state can be shortened to within the interval of one-half to one-third of the length in the use state, further improving the portability of the brush handle structure compared to the prior art. It should be noted that when the brush handle structure of the present application is applied to a toothbrush, the brush head and the brush handle structure can be arranged in a detachable connection form, thereby further shortening the length in the folded state.

[0050] It should be noted that the brush handle structure of the present application can be applied to ordinary toothbrushes or electric toothbrushes. It can be understood that in daily use scenarios, users often stand the toothbrush upright on the table after use, which has a high center of gravity and is easy to be knocked down, causing the risk of damage to the toothbrush. The brush handle structure of the present application can be folded and placed flat on the table in the folded state, which has a low center of gravity and reduces the risk of toothbrush tipping and falling.

[0051] Next, how to fold the first handle section 100 and the third handle section 300 will be described in detail.

[0052] In some embodiments, as shown in Figure 3 and Figure 4 The first handle section 100 has a first inclined surface 110, and the second handle section 200 has a second inclined surface 210. The first inclined surface 110 and the second inclined surface 210 are arranged in abutment. In the use state, the first handle section 100 is formed with a wedge structure as shown in Figure 1 The second handle section 200 is also formed with a corresponding wedge structure. The top end of the wedge structure of the first handle section 100 is arranged in abutment with the bottom end of the wedge structure of the second handle section 200, and the bottom end of the wedge structure of the first handle section 100 is arranged in abutment with the top end of the wedge structure of the second handle section 200, so that the length direction of the first handle section 100 coincides with the length direction of the first handle section 100 in the first direction.

[0053] The first handle section 100 can rotate relative to the second handle section 200, and the rotation axis of the first handle section 100 is arranged perpendicular to the second inclined surface 210, so that when the first handle section 100 is rotated by 180°, the first handle section 100 is arranged in the second direction. At this time, as shown in Figure 2 The top end of the wedge structure of the first handle section 100 is arranged in abutment with the top end of the wedge structure of the second handle section 200, and the bottom end of the wedge structure of the first handle section 100 is arranged in abutment with the bottom end of the wedge structure of the second handle section 200.

[0054] The third handle segment 300 and the second handle segment 200 have the same matching principle: the third handle segment 300 has a third inclined surface 310, and the second handle segment 200 further has a fourth inclined surface 220, the second inclined surface 210 and the fourth inclined surface 220 are respectively located at two ends of the second handle segment 200, and the third inclined surface 310 and the fourth inclined surface 220 are arranged in abutment, wherein the third handle segment 300 is arranged perpendicular to the fourth inclined surface 220 relative to the rotation axis of the second handle segment 200. Thus, after the third handle segment 300 rotates 180° around the rotation axis, the third handle segment 300 is also arranged in the second direction.

[0055] It can be understood that when the first handle segment 100 and the third handle segment 300 are both arranged in the second direction, the brush handle structure is switched to the folded state.

[0056] It should be noted that each handle segment includes a main body part 101 and an end cover part 102, as shown in Figure 3 For example, the first handle segment 100, the right side of the first handle segment 100 is an obliquely cut opening, the end cover part 102 can be connected with the main body part 101 to close the opening, and the first inclined surface 110 is formed on the end cover part 102. The main body part 101 and the end cover part 102 can be connected as an integral structure by hinging, clamping or the like. The structures of other handle segments are the same, and will not be described here. The separable design of the main body part 101 and the end cover part 102 is beneficial to the assembly of electrical devices in the handle segment. When assembling, the end cover part 102 is separated from the main body part 101, so that the electrical device can be inserted into the accommodation cavity in the main body part 101. Then the end cover part 102 is connected with the main body part 101 to close the opening, which can protect the electrical device and facilitate the rotation connection of adjacent handle segments.

[0057] Further, in order to enable the first handle segment 100 and the third handle segment 300 to be arranged in the second direction after rotating 180° around the rotation axis, it is required that the second inclined surface 210 and the fourth inclined surface 220 are arranged perpendicular to each other. Preferably, the second inclined surface 210 and the fourth inclined surface 220 are both 45° inclined surfaces, that is, the included angle between the second inclined surface 210 and the center line of the second handle segment 200, and the included angle between the fourth inclined surface 220 and the center line of the second handle segment 200 are both 45°, and correspondingly, the first inclined surface 110 and the third inclined surface 310 are also 45° inclined surfaces.

[0058] Further, the brush handle structure includes a first rotation shaft 211 and a second rotation shaft 311, and the first rotation shaft 211 is fixedly connected to the first inclined surface 110 or the second inclined surface 210. When one end of the first rotation shaft 211 is fixedly connected to the second inclined surface 210, the other end is inserted into the first inclined surface 110 and rotationally connected with the first handle segment 100. For example, as shown in Figure 3 and Figure 4In the shown embodiment, the screw functions as the rotating shaft, the center of the second inclined surface 210 is provided with a threaded hole 214, the center of the first inclined surface 110 is provided with a through hole, the screw is inserted into the through hole of the first inclined surface 110 and is threadedly connected with the threaded hole 214 of the second inclined surface 210, so as to realize the rotating connection of the first handle section 100 and the second handle section 200. In other embodiments, the first rotating shaft 211 can also be fixedly connected with the first inclined surface 110 and is inserted into the second inclined surface 210 and is rotatably connected with the second handle section 200.

[0059] Similarly, the second rotating shaft 311 can be fixedly connected with the third inclined surface 310 and is rotatably connected with the second handle section 200, or the second rotating shaft 311 can be fixedly connected with the fourth inclined surface 220 and is rotatably connected with the third handle section 300.

[0060] Further, either of the first inclined surface 110 and the second inclined surface 210 is provided with a first limiting protrusion 212 and the other is provided with a first limiting groove 111, and the first limiting protrusion 212 and the first limiting groove 111 are matched. For example, in the shown embodiment, the first limiting protrusion 212 is provided on the second inclined surface 210 and is in the form of a cylinder, and the first limiting groove 111 is provided on the first inclined surface 110 and is in the form of an arc-shaped through groove. Figure 3 And Figure 4 In the shown embodiment, the first limiting protrusion 212 is provided on the second inclined surface 210 and is in the form of a cylinder, and the first limiting groove 111 is provided on the second inclined surface 210 and is in the form of an arc-shaped through groove. The first limiting groove 111 is provided around the first rotating shaft 211 and the central angle of the arc-shaped groove is 180°. When the first handle section 100 rotates relative to the second handle section 200, the first limiting protrusion 212 slides in the first limiting groove 111.

[0061] It can be understood that the starting position of the first limiting groove 111 corresponds to the rotating state of the first handle section 100. For example, as shown in Figure 5 And Figure 6 As shown, Figure 5 As shown is a schematic view of the end cover part 102 of the first handle section 100 connected with the second inclined surface 210, at this time, the brush handle structure is in the use state, Figure 6 As shown is a schematic view of the end cover part 102 of the first handle section 100 connected with the second inclined surface 210, at this time, the brush handle structure is in the folding state. In the use state, the first limiting protrusion 212 abuts against one end groove wall of the first limiting groove 111, and in the folding state, the first limiting protrusion 212 abuts against the other end groove wall of the first limiting groove 111. Further, the first limiting groove 111 limits the rotating range of the first limiting protrusion 212, so as to limit the rotating amplitude of the first handle section 100, so that when the first handle section 100 rotates to the limit position abutting against the groove wall of the first limiting groove 111, the brush handle structure is just in the folding state or the use state, avoiding over-rotation or under-rotation.

[0062] Similarly, the second handle section 200 and the third handle section 300 are also provided with similar limiting structures: either the third inclined surface 310 or the fourth inclined surface 220 is provided with a second limiting protrusion 312, and the other is provided with a second limiting groove 221, and the second limiting protrusion 312 and the second limiting groove 221 are matched. When the third handle section 300 rotates relative to the second handle section 200, the second limiting protrusion 312 slides in the second limiting groove 221. And, in the use state, the second limiting protrusion 312 abuts against one end groove wall of the second limiting groove 221, and in the folded state, the second limiting protrusion 312 abuts against the other end groove wall of the second limiting groove 221.

[0063] Further, when the brush handle structure is applied to an electric toothbrush, an electric device such as a power supply and a driving member needs to be arranged inside the first handle section 100 and the third handle section 300, and the power supply and the driving member are connected through a connecting wire. Therefore, the connecting wire needs to be arranged in the first handle section 100, the second handle section 200, and the third handle section 300. Further, the brush handle structure needs to ensure that the connecting wire does not interfere with the rotation of the first handle section 100 or the third handle section 300 when the state is switched, and the rotation of the first handle section 100 and the third handle section 300 also does not disturb the connecting wire to cause the wire to break or contact poorly.

[0064] Therefore, as shown in Figure 3 and Figure 4 , the brush handle structure of the present application is provided with a first wire passing hole 213 on the second inclined surface 210 and a first wire passing groove 112 on the first inclined surface 110. The first wire passing hole 213 and the first wire passing groove 112 are both used for the connecting wire to pass through. The first wire passing groove 112 is also arc-shaped and can adapt to the rotation of the first handle section 100, so that when the first handle section 100 rotates relative to the second handle section 200, the first wire passing hole 213 and the first wire passing groove 112 remain in communication. For example, as shown in Figure 3 , the first wire passing groove 112 and the first limiting groove 111 are both arranged on the first inclined surface 110, and the first wire passing groove 112 and the first limiting groove 111 are respectively located on the two sides of the first rotation axis 211, so that the arc center directions of the first wire passing groove 112 and the first limiting groove 111 are opposite. When the brush handle structure is in the folded state, as shown in Figure 6 , the first wire passing hole 213 is located at the left end of the first wire passing groove 112 and communicates with the left end of the first wire passing groove 112, at this time the connecting wire can enter the first handle section 100 from the left end of the first wire passing groove 112. The first limiting protrusion 212 is located at the right end of the first limiting groove 111. When the brush handle structure is switched from the folded state to the use state, the first limiting protrusion 212 slides in the first limiting groove 111 in the clockwise direction shown in the figure, the first wire passing hole 213 gradually moves to the right end of the first wire passing groove 112 in the clockwise direction shown in the figure, and the connecting wire moves to the right in the first wire passing groove 112.

[0065] It is understandable that the central angle corresponding to the first wire groove 112 should be no less than 180° so that the first wire hole 213 and the first wire groove 112 remain connected when the brush handle structure state is switched, so that the connecting wire will not be disturbed.

[0066] Similarly, the fourth inclined surface 220 is provided with a second wire hole 313, and the third inclined surface 310 is provided with a second wire groove 222. Both the second wire hole 313 and the second wire groove 222 are used for connecting wires to pass through. When the third handle 300 rotates relative to the second handle 200, the second wire hole 313 and the second wire groove 222 remain in communication.

[0067] In other embodiments, such as Figure 7 As shown, it should be noted that Figure 7 The left-hand diagram shows the brush handle structure in its active state, while the right-hand diagram shows it in its folded state. The first handle segment 100 and the third handle segment 300 are hinged to the second handle segment 200. In the folded state, the first handle segment 100, the second handle segment 200, and the third handle segment 300 are positioned on a first plane. Figure 7 Taking the example shown, the first plane is the paper surface. When the first handle segment 100 rotates relative to the second handle segment 200, its rotation axis is perpendicular to the first plane. When the third handle segment 300 rotates relative to the second handle segment 200, its rotation axis is perpendicular to the first plane. That is, when the brush handle structure switches from the use state to the folded state, the first handle segment 100 bends relative to the second handle segment 200, and the third handle segment 300 bends relative to the second handle segment 200. The first handle segment 100 and the third handle segment 300 gradually close together until the first handle segment 100 and the third handle segment 300 are parallel.

[0068] Understandably, in Figure 7 In the illustrated embodiment, the first handle segment 100 and the third handle segment 300 rotate on a first plane, with the rotation axis always perpendicular to the first plane. Figure 2 In the embodiment shown, when the first handle segment 100, the second handle segment 200, and the third handle segment 300 are located on the first plane in the folded state, the rotation axis of the first handle segment 100 and the third handle segment 300 is parallel to the first plane when they rotate relative to the second handle segment 200.

[0069] The second aspect of this application also provides an electric toothbrush, which includes a brush head and the handle structure mentioned in the above embodiments. It should be noted that... Figure 1 and Figure 2As shown, the first handle section 100 is provided with a mounting portion 120 at one end away from the second handle section 200, the brush head is mounted on the mounting portion 120, and is detachably connected with the mounting portion 120, after the electric toothbrush is used, the brush head can be separated from the mounting portion 120, so that the length dimension of the electric toothbrush in the folded state is smaller, and the portability is further improved.

[0070] In some embodiments, the electric toothbrush further comprises a driving member and a power supply, the driving member is arranged in the first handle section 100 to drive the brush head, and the power supply is arranged in the third handle section 300, and the outer circumferential surface or the bottom end surface of the third handle section 300 is provided with a charging port to charge the power supply. Since the weight of the power supply is heavy, arranging it in the third handle section 300 is beneficial to reduce the center of gravity of the electric toothbrush, so as to improve the holding feeling of the electric toothbrush. The driving member and the power supply are electrically connected through a connecting wire, and the connecting wire is sequentially arranged in the first handle section 100, the second handle section 200 and the third handle section 300. Due to the arrangement of the wire hole and the wire groove on each connecting inclined surface, the connecting wire can be avoided during the rotation of the first handle section 100 and the third handle section 300, so as to avoid the pulling or winding of the connecting wire, and the stability of the power supply of the electric toothbrush is improved.

[0071] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model. In addition, the embodiments and the features in the embodiments of the utility model can be combined with each other without conflict.

Claims

1. A brush handle structure, characterized by, The brush handle structure comprises a first handle section, a second handle section and a third handle section, wherein: The first handle section and the third handle section are respectively pivotally connected to two ends of the second handle section; the first handle section and the third handle section are driven to rotate relative to the second handle section to switch the brush handle structure between a folded state and a use state; in the use state, the first handle section, the second handle section and the third handle section are arranged along the same center line; in the folded state, the first handle section and the third handle section are arranged in parallel, and the first handle section and the third handle section are respectively connected to different ends of the second handle section, and the first handle section and the third handle section are arranged in the same direction away from the second handle section; The first handle section has a first inclined surface, one end of the second handle section has a second inclined surface, and the first inclined surface and the second inclined surface are arranged in abutment; wherein the rotation axis of the first handle section relative to the second handle section is arranged perpendicular to the second inclined surface; The third handle section has a third inclined surface, the other end of the second handle section has a fourth inclined surface, and the third inclined surface and the fourth inclined surface are arranged in abutment; wherein the rotation axis of the third handle section relative to the second handle section is arranged perpendicular to the fourth inclined surface.

2. The brush handle structure according to claim 1, wherein The second inclined surface and the fourth inclined surface are arranged perpendicular to each other.

3. The brush handle structure of claim 1, wherein The brush handle structure further comprises a first pivot shaft and a second pivot shaft, the first pivot shaft is fixedly connected to the second inclined surface and pivotally connected to the first handle section, or the first pivot shaft is fixedly connected to the first inclined surface and pivotally connected to the second handle section; The second pivot shaft is fixedly connected to the third inclined surface and pivotally connected to the second handle section, or the second pivot shaft is fixedly connected to the fourth inclined surface and pivotally connected to the third handle section.

4. The brush handle structure of claim 1, wherein Either the first inclined surface or the second inclined surface is provided with a first limiting protrusion, and the other is provided with a first limiting groove, and the first limiting protrusion and the first limiting groove are matched; When the first handle section rotates relative to the second handle section, the first limiting protrusion slides in the first limiting groove; In the use state, the first limiting protrusion abuts against one end groove wall of the first limiting groove, and in the folded state, the first limiting protrusion abuts against the other end groove wall of the first limiting groove.

5. The brush handle structure of claim 1, wherein Either the third inclined surface or the fourth inclined surface is provided with a second limiting protrusion, and the other is provided with a second limiting groove, and the second limiting protrusion and the second limiting groove are matched; When the third handle section rotates relative to the second handle section, the second limiting protrusion slides in the second limiting groove; In the use state, the second limiting protrusion abuts against one end groove wall of the second limiting groove, and in the folded state, the second limiting protrusion abuts against the other end groove wall of the second limiting groove.

6. The brush handle structure of claim 1, wherein The second inclined surface is provided with a first threading hole, and the first inclined surface is provided with a first threading groove, and the first threading hole and the first threading groove are both used for passing a connecting wire therethrough, and when the first handle section rotates relative to the second handle section, the first threading hole and the first threading groove remain in communication; And / or, the third inclined surface is provided with a second threading hole, and the fourth inclined surface is provided with a second threading slot, the second threading hole and the second threading slot are both used for threading a connecting wire, and the second threading hole and the second threading slot are kept in communication when the third handle section is rotated compared with the second handle section.

7. An electric toothbrush characterized by Comprise: a brush head; The brush handle structure according to any one of claims 1 to 6, wherein the first handle section further comprises a mounting portion, and the brush head is detachably connected with the mounting portion.

8. The electric toothbrush according to claim 7, characterized in that The electric toothbrush further comprises a driving member and a power source, the driving member is arranged in the first handle section, the power source is arranged in the third handle section, and the driving member and the power source are electrically connected through a connecting wire.

Images