Toothbrush handle and electric toothbrush

Abstract

The utility model discloses a toothbrush handle and an electric toothbrush, and the toothbrush handle comprises a shell with a storage cavity; the driving piece is arranged in the storage cavity; the rotating part is arranged in the storage cavity, and the rotating part is connected to the driving part; the pressure sensor is connected to the rotating part, the driving part is used for driving the rotating part to rotate so that the rotating part can drive the pressure sensor to rotate, and the pressure sensor is configured to be capable of detecting the pressure value on the rotating part when the rotating angle of the pressure sensor is not larger than A; and the limiting structure is arranged in the storage cavity, and the limiting structure is used for limiting the rotating angle of the rotating piece, so that the maximum rotating angle of the rotating piece is A. The toothbrush handle can effectively prevent the pressure sensor from being damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to oral cavity cleaning appliance technical field especially is toothbrush handle and electric toothbrush. BACKGROUND

[0002] In the related art, the electric toothbrush is a tool for cleaning teeth by driving the brush head to rotate or vibrate at high speed. The electric toothbrush comprises a shell, a battery, a motor, a rotating shaft and a main board, wherein the battery, the motor, the rotating shaft and the main board are arranged inside the shell, and the motor drives the rotating shaft to move, thereby realizing rotation or vibration of the brush head driven by the rotating shaft.

[0003] In the prior art, a pressure sensor is arranged on the rotating shaft, which can detect the force of the contact between the brush head and the teeth when the user brushes teeth, thereby facilitating the electric toothbrush to switch the cleaning mode. The pressure sensor is usually connected to the rotating shaft and rotates with the rotating shaft, wherein the angle of rotation of the pressure sensor is limited, for example, the pressure sensor can only rotate by 30 degrees. That is, when the angle of rotation of the pressure sensor exceeds 30 degrees, the pressure sensor will be damaged. In order to protect the pressure sensor, the angle of rotation of the motor driven rotating shaft can be limited within 30 degrees. However, when the electric toothbrush is turned off and the user manually rotates the rotating shaft by more than 30 degrees, the angle of rotation of the pressure sensor will exceed 30 degrees, which will cause the pressure sensor to be damaged, thereby damaging the electric toothbrush. 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 toothbrush handle which can effectively prevent the pressure sensor from being damaged.

[0005] The utility model further provides an electric toothbrush.

[0006] According to the toothbrush handle of the first aspect of the utility model, the toothbrush handle comprises:

[0007] The shell has a storage cavity;

[0008] The driving member is arranged in the storage cavity;

[0009] The rotating member is arranged in the storage cavity, and the rotating member is connected to the driving member;

[0010] The pressure sensor is connected to the rotating member, and the driving member is used to drive the rotating member to rotate, so that the rotating member drives the pressure sensor to rotate, wherein the pressure sensor is configured to detect the pressure value on the rotating member when the angle of rotation of the pressure sensor is not greater than A;

[0011] The limiting structure is arranged in the storage cavity, and is used for limiting the rotation angle of the rotating member, so that the maximum rotation angle of the rotating member is A.

[0012] The toothbrush handle has at least the following beneficial effects: the limiting structure can be used to limit the rotation angle of the rotating member, that is, when the driving member drives the rotating member to rotate, the rotating member can drive the pressure sensor to rotate, and when the rotation angle of the pressure sensor is not greater than A, the pressure sensor can detect the pressure value on the rotating member; further, since the limiting structure can make the maximum rotation angle of the rotating member not exceed A, the rotation angle of the pressure sensor will not exceed A, so that the pressure sensor will not be damaged, and the pressure sensor can normally detect the pressure value on the rotating member; specifically, the toothbrush handle can effectively prevent the pressure sensor from being damaged.

[0013] According to some embodiments of the toothbrush handle of the utility model, the limiting structure comprises a first abutting member, a first limiting member and a second limiting member, the first limiting member and the second limiting member are connected to the cavity wall of the storage cavity, and the first limiting member and the second limiting member are protruded relative to the cavity wall of the storage cavity, the first limiting member, the second limiting member and the cavity wall of the storage cavity form an arc-shaped groove, the arc-shaped groove takes the axis of the rotating member as the center, and the central angle of the arc-shaped groove is A; the first abutting member is connected to the rotating member, and the first abutting member is protruded radially relative to the rotating member, and the first abutting member is arranged in the arc-shaped groove.

[0014] According to some embodiments of the toothbrush handle of the utility model, the driving member is used for driving the rotating member to rotate bidirectionally, the limiting structure comprises a first abutting member, a first limiting member and a second limiting member, the first limiting member and the second limiting member are connected to the cavity wall of the storage cavity, and the first limiting member and the second limiting member are protruded relative to the cavity wall of the storage cavity, the first limiting member, the second limiting member and the cavity wall of the storage cavity form an arc-shaped groove, the arc-shaped groove takes the axis of the rotating member as the center, and the central angle of the arc-shaped groove is 2A; the first abutting member is connected to the rotating member, and the first abutting member is protruded radially relative to the rotating member, and the first abutting member is arranged in the arc-shaped groove.

[0015] According to some embodiments of the toothbrush handle of the utility model, the driving part is used for driving the rotating part to rotate bidirectionally, the limiting structure comprises a first abutting part, a first limiting part and a second limiting part, the first limiting part and the second limiting part are connected to the cavity wall of the storage cavity, and the first limiting part and the second limiting part are protruded relative to the cavity wall of the storage cavity, the first limiting part, the second limiting part and the cavity wall of the storage cavity form an arc-shaped groove, the arc-shaped groove takes the shaft center of the rotating part as the center, the central angle of the arc-shaped groove is 2B, wherein B < A, the first abutting part is connected to the rotating part, and the first abutting part is protruded radially relative to the rotating part, and the first abutting part is arranged in the arc-shaped groove.

[0016] According to some embodiments of the toothbrush handle of the utility model, the limiting structure comprises a first abutting part, a second abutting part, a first limiting part and a second limiting part, the first limiting part and the second limiting part are connected to the cavity wall of the storage cavity, and the first limiting part and the second limiting part are protruded relative to the cavity wall of the storage cavity, the first limiting part, the second limiting part and the cavity wall of the storage cavity form an arc-shaped groove, the arc-shaped groove takes the shaft center of the rotating part as the center, the central angle of the arc-shaped groove is C, C = 180°-A, the first abutting part and the second abutting part are connected to the rotating part, and the first abutting part and the second abutting part are protruded radially relative to the rotating part, the first abutting part and the second abutting part are oppositely arranged, and the first abutting part and the second abutting part are located outside the arc-shaped groove.

[0017] According to some embodiments of the toothbrush handle of the utility model, the driving part is used for driving the rotating part to rotate bidirectionally, the limiting structure comprises a first abutting part, a second abutting part, a first limiting part and a second limiting part, the first limiting part and the second limiting part are connected to the cavity wall of the storage cavity, and the first limiting part and the second limiting part are protruded relative to the cavity wall of the storage cavity, the first limiting part, the second limiting part and the cavity wall of the storage cavity form an arc-shaped groove, the arc-shaped groove takes the shaft center of the rotating part as the center, the central angle of the arc-shaped groove is C, C = 180°-2A, the first abutting part and the second abutting part are connected to the rotating part, and the first abutting part and the second abutting part are protruded radially relative to the rotating part, the first abutting part and the second abutting part are oppositely arranged, and the first abutting part and the second abutting part are located outside the arc-shaped groove.

[0018] According to the toothbrush handle of some embodiments of the utility model, the driving piece is used for driving the rotating piece to rotate bidirectionally, the limiting structure comprises a first abutting piece, a second abutting piece, a first limiting piece and a second limiting piece, the first limiting piece and the second limiting piece are connected to the cavity wall of the storage cavity, and the first limiting piece and the second limiting piece are convex relative to the cavity wall of the storage cavity, the first limiting piece, the second limiting piece and the cavity wall of the storage cavity form an arc-shaped groove, the arc-shaped groove takes the shaft center of the rotating piece as the center, the central angle of the arc-shaped groove is C, C = 180°-2D, D < A;The first abutting piece and the second abutting piece are connected to the rotating piece, and the first abutting piece and the second abutting piece are convex along the radial direction relative to the rotating piece, the first abutting piece and the second abutting piece are oppositely arranged, and the first abutting piece and the second abutting piece are located outside the arc-shaped groove.

[0019] According to the toothbrush handle of some embodiments of the utility model, the pressure sensor and the rotating piece are bonded.

[0020] According to the toothbrush handle of some embodiments of the utility model, the rotating piece is provided with a connecting groove, and the pressure sensor is bonded to the groove wall of the connecting groove.

[0021] According to the electric toothbrush of the second aspect embodiment of the utility model, comprising:

[0022] The brush head;

[0023] The toothbrush handle according to any one of the first aspect embodiments of the utility model is connected to the brush head.

[0024] According to the electric toothbrush of the utility model embodiment, at least has following beneficial effect: limiting structure can be used for limiting the rotating angle of rotating piece, namely, when driving piece drives rotating piece to rotate, rotating piece can drive pressure sensor to rotate, when the rotating angle of pressure sensor is not greater than A, pressure sensor can detect the pressure value on rotating piece, further, because limiting structure can make the maximum angle of rotating piece that can rotate does not exceed A, therefore the angle of pressure sensor that rotates does not exceed A, so that pressure sensor will not be damaged, and pressure sensor can normally detect the pressure value on rotating piece, specifically, by setting the toothbrush handle of the application, pressure sensor damage can be effectively avoided.Further, the reliability of the electric toothbrush with the toothbrush handle is higher.

[0025] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0026] The utility model makes further illustration below combining with the drawing and embodiment, among them,

[0027] Figure 1 It is the schematic diagram of electric toothbrush of some embodiments of the utility model,

[0028] Figure 2 It is the schematic diagram of toothbrush handle of some embodiments of the utility model,

[0029] Figure 3 It is the cross section schematic diagram of toothbrush handle of first embodiment of the utility model,

[0030] Figure 4 It is the cross section schematic diagram of toothbrush handle of second embodiment of the utility model,

[0031] Figure 5 It is the cross section schematic diagram of toothbrush handle of third embodiment of the utility model,

[0032] Figure 6 It is the cross section schematic diagram of toothbrush handle of fourth embodiment of the utility model,

[0033] Figure 7 It is the cross section schematic diagram of toothbrush handle of fifth embodiment of the utility model,

[0034] Figure 8 It is the cross section schematic diagram of toothbrush handle of sixth embodiment of the utility model,

[0035] Figure 9 It is the cross section schematic diagram of toothbrush handle of seventh embodiment of the utility model,

[0036] Figure 10 It is the cross section schematic diagram of toothbrush handle of eighth embodiment of the utility model,

[0037] Figure 11 It is the schematic diagram of rotating member and first abutment piece in toothbrush handle of some embodiments of the utility model.

[0038] Reference signs:

[0039] Electric toothbrush 10, toothbrush handle 100, shell 200, storage cavity 210, rotating member 300, connecting groove 310, pressure sensor 400, first abutment piece 500, second abutment piece 600, first limiting piece 700, second limiting piece 800, arc-shaped groove 900, brush head 1000. DETAILED DESCRIPTION

[0040] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are used only for explaining the present application, and are not to be understood as limiting the present application.

[0041] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0042] In the description of the present application, the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of indicated technical features.

[0043] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0044] In the description of the present application, the description of the reference terms "one embodiment", "some embodiments", "exemplary 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 present application. In the present specification, the exemplary description of the above terms does not necessarily mean 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.

[0045] Please refer to Figures 1 to 11In some embodiments, the toothbrush handle 100 comprises a shell 200, a driving member, a rotating member 300, a pressure sensor 400 and a limiting structure. The shell 200 has a storage cavity 210 in which electronic components such as batteries and circuit boards can be placed. The driving member is arranged in the storage cavity 210, and the driving member can be a motor. The rotating member 300 is arranged in the storage cavity 210 and is connected to the driving member. The rotating member 300 can be a rotating shaft, one end of which is fixedly connected to the driving member, so that the driving member can drive the rotating shaft to rotate. The other end of the rotating shaft can also be connected to the brush head 1000. The pressure sensor 400 is connected to the rotating member 300. The driving member is used to drive the rotating member 300 to rotate, so that the rotating member 300 drives the pressure sensor 400 to rotate. Among them, the pressure sensor 400 is configured to be able to detect the pressure value on the rotating member 300 when the rotation angle of the pressure sensor 400 is not greater than A. Specifically, the pressure sensor 400 can be a pressure-sensitive flexible circuit board. The pressure-sensitive flexible circuit board integrates a pressure sensing element on the basis of a flexible circuit board, so that it can perceive and respond to changes in external pressure. This circuit board combines the flexibility and bendability of FPC and the sensitivity of the pressure sensor 400, providing a more interactive and higher design freedom for the electric toothbrush 10. The working principle of the pressure-sensitive flexible circuit board is mainly based on the working principle of the pressure sensor 400. When external pressure acts on the pressure sensor 400 on the pressure-sensitive flexible circuit board, the strain resistance or capacitance elements inside the sensor will change accordingly, thereby changing the resistance or capacitance value of the circuit. This change is captured by the detection circuit in the circuit and converted into an electrical signal for transmission and processing, ultimately realizing the perception and response to external pressure. That is, the pressure sensor 400 is connected to the rotating shaft, and the rotating shaft is connected to the brush head 1000, so that the pressure sensor 400 can detect the pressure value of the brush head 1000 on the teeth. The limiting structure is arranged in the storage cavity 210, and the limiting structure is used to limit the rotation angle of the rotating member 300, so that the maximum rotation angle of the rotating member 300 is A.

[0046] Specifically, the limiting structure can be used to limit the rotation angle of the rotating member 300, that is, when the driving member drives the rotating member 300 to rotate, the rotating member 300 can drive the pressure sensor 400 to rotate, and when the rotation angle of the pressure sensor 400 is not greater than A, the pressure sensor 400 can detect the pressure value on the rotating member 300. Further, since the limiting structure can make the maximum rotation angle of the rotating member 300 not greater than A, the rotation angle of the pressure sensor 400 will not exceed A, thereby effectively preventing the pressure sensor 400 from being damaged, and the pressure sensor 400 can normally detect the pressure value on the rotating member 300. In the prior art, since there is no limiting structure, when the user twists the rotating member 300, the rotating member 300 can rotate too much, thereby damaging the pressure sensor 400. In the present application, when the user twists the rotating member 300, the limiting structure will limit the rotating member 300 from continuing to rotate, thereby protecting the pressure sensor 400. Specifically, the toothbrush handle 100 can effectively prevent the pressure sensor 400 from being damaged. In addition, it should be noted that the limiting structure can not only protect the pressure sensor 400 in the case of human operation of the rotating member 300, but also when the driving member loses control, the driving member can make the rotating member 300 rotate too much, which can also damage the pressure sensor 400. However, when the limiting structure is set, even if the driving member fails, the rotating angle of the rotating member 300 will not be too large.

[0047] It should be noted that the above-mentioned pressure sensor 400 can detect the pressure value on the rotating member 300 when the rotation angle of the pressure sensor 400 is not greater than A, which means that when the shaft rotates, the pressure sensor 400 will rotate with the shaft, and the rotation angle of the pressure sensor 400 cannot be too large, otherwise it can cause the pressure sensor 400 to break or fail. A can be thirty to forty degrees. That is, when the rotation angle of the pressure sensor 400 is not greater than forty degrees, the pressure sensor 400 can normally detect the pressure value on the shaft.

[0048] Further, how the limiting structure limits the rotation range of the rotating member 300 will be introduced below. Please refer to Figures 2 to 10 wherein, Figure 9The center angle of the arc-shaped slot 900 is shown. In some embodiments, the limiting structure includes the first abutting member 500, the first limiting member 700, and the second limiting member 800. The first limiting member 700 and the second limiting member 800 are connected to the cavity wall of the storage cavity 210, and the first limiting member 700 and the second limiting member 800 protrude relative to the cavity wall of the storage cavity 210. The first limiting member 700, the second limiting member 800, and the cavity wall of the storage cavity 210 form the arc-shaped slot 900, and the cross section of the arc-shaped slot 900 can be a sector. The arc-shaped slot 900 has the axis of the rotating member 300 as the center, and the center angle of the arc-shaped slot 900 can be A. The center angle of the arc-shaped slot 900 can be shown with reference to Figure 9 . The first abutting member 500 is connected to the rotating member 300, and the first abutting member 500 protrudes radially relative to the rotating member 300. The first abutting member 500 is arranged in the arc-shaped slot 900. For example, as shown in Figure 3 or Figure 4 , after the first abutting member 500 is arranged in the arc-shaped slot 900, the first abutting member 500 abuts against the first limiting member 700 or the second limiting member 800. Through the abutment of the first abutting member 500 and the first limiting member 700 and the second limiting member 800, the rotation range of the rotating shaft can be limited, so as to effectively prevent the pressure sensor 400 from being damaged. In addition, since the first abutting member 500 rotates in the arc-shaped slot 900, the center angle of the arc-shaped slot 900 is the rotation angle range value of the rotating member 300.

[0049] Further, how the limiting structure limits the rotation range of the rotating member 300 is introduced below. Specifically, please refer to Figures 2 to 10 . In some embodiments, the driving member is used to drive the rotating member 300 to rotate bidirectionally. The limiting structure includes the first abutting member 500, the first limiting member 700, and the second limiting member 800. The first limiting member 700 and the second limiting member 800 are connected to the cavity wall of the storage cavity 210, and the first limiting member 700 and the second limiting member 800 protrude relative to the cavity wall of the storage cavity 210. The first limiting member 700, the second limiting member 800, and the cavity wall of the storage cavity 210 form the arc-shaped slot 900, and the cross section of the arc-shaped slot 900 can be a sector. The arc-shaped slot 900 has the axis of the rotating member 300 as the center, and the center angle of the arc-shaped slot 900 is 2A. The center angle of the arc-shaped slot 900 can be shown with reference to Figure 9 . The first abutting member 500 is connected to the rotating member 300, and the first abutting member 500 protrudes radially relative to the rotating member 300. The first abutting member 500 is arranged in the arc-shaped slot 900. Specifically, when the rotating member 300 rotates bidirectionally, the rotating member 300 can take the starting position as the center line, and then the rotating member 300 rotates bidirectionally along the center line. For example, when A is 33 degrees, at the initial position, the initial position can be referred to Figure 3, the pressure sensor 400 does not rotate by itself. That is, the rotating member 300 rotates first 33 degrees in the counterclockwise direction, at which time the pressure sensor 400 rotates 33 degrees following the rotating member 300, and then the rotating member 300 rotates 66 degrees in the clockwise direction, at which time the pressure sensor 400 rotates first to recover and then continues to rotate 33 degrees in the clockwise direction. When the rotating member 300 rotates first 33 degrees in the counterclockwise direction, as shown in Figure 4 , the first abutting member 500 and the first limiting member 700 abut, thereby limiting the rotating member 300 from continuing to rotate. When the rotating member 300 rotates again 66 degrees in the clockwise direction, as shown in Figure 5 , the first abutting member 500 and the second limiting member 800 abut, thereby limiting the rotating member 300 from continuing to rotate. Since the first abutting member 500 rotates from the first limiting member 700 to the position of the second limiting member 800, the central angle of the arc-shaped slot 900 is the range of the rotating angle of the rotating member 300. The central angle of the arc-shaped slot 900 can be referred to in Figure 9 . Further, the following describes how the limiting structure limits the range of rotation of the rotating member 300. Specifically, please refer to Figures 2 to 10 , in some embodiments, the driving member is configured to drive the rotating member 300 to rotate bidirectionally. The limiting structure includes the first abutting member 500, the first limiting member 700, and the second limiting member 800. The first limiting member 700 and the second limiting member 800 are both connected to the cavity wall of the storage cavity 210, and the first limiting member 700 and the second limiting member 800 both protrude relative to the cavity wall of the storage cavity 210. The first limiting member 700, the second limiting member 800, and the cavity wall of the storage cavity 210 form an arc-shaped slot 900, and the cross section of the arc-shaped slot 900 can be a sector. The arc-shaped slot 900 has the axis of the rotating member 300 as the center, and the central angle of the arc-shaped slot 900 is 2B, where B Figure 9 . For example, A is 30 degrees, and B can be 20 degrees or 25 degrees. The first abutting member 500 is connected to the rotating member 300, and the first abutting member 500 protrudes radially relative to the rotating member 300, and the first abutting member 500 is disposed in the arc-shaped slot 900. Specifically, taking A as 30 degrees and B as 20 degrees as an example, the pressure sensor 400 can withstand a rotating angle of 30 degrees, and after the central angle of the arc-shaped slot 900 is set to 20 degrees, this can further protect the pressure sensor 400 from being damaged.

[0050] Further, the following describes how the limiting structure limits the range of rotation of the rotating member 300. Please refer to Figures 2 to 10In some embodiments, the limiting structure includes a first abutting member 500, a second abutting member 600, a first limiting member 700 and a second limiting member 800. The first limiting member 700 and the second limiting member 800 are connected to the cavity wall of the storage cavity 210, and the first limiting member 700 and the second limiting member 800 protrude relative to the cavity wall of the storage cavity 210. The first limiting member 700, the second limiting member 800 and the cavity wall of the storage cavity 210 form an arc-shaped slot 900, and the cross section of the arc-shaped slot 900 can be a sector. The arc-shaped slot 900 has the axis of the rotating member 300 as the center, and the central angle of the arc-shaped slot 900 is C, C = 180° - A. The schematic of the central angle of the arc-shaped slot 900 can be referred to Figure 9 For example, A is 30 degrees, and C is 150 degrees. The first abutting member 500 and the second abutting member 600 are connected to the rotating member 300, and the first abutting member 500 and the second abutting member 600 protrude radially relative to the rotating member 300. The first abutting member 500 and the second abutting member 600 are oppositely arranged, and the first abutting member 500 and the second abutting member 600 are both located outside the arc-shaped slot 900. After the first abutting member 500 and the second abutting member 600 are connected to the rotating member 300, a “cross” structure can be formed. The first abutting member 500 can abut on the side of the first limiting member 700 away from the second limiting member 800, and the second abutting member 600 can abut on the side of the second limiting member 800 away from the first limiting member 700. Through the abutment of the first abutting member 500 and the first limiting member 700, and the abutment of the second abutting member 600 and the second limiting member 800, the rotation range of the rotating shaft can be limited, so as to effectively ensure that the pressure sensor 400 will not be damaged.

[0051] Further, how the limiting structure limits the rotation range of the rotating member 300 will be introduced below. Specifically, please refer to Figures 2 to 10 In some embodiments, the driving member is used to drive the rotating member 300 to rotate bidirectionally. The limiting structure includes a first abutting member 500, a second abutting member 600, a first limiting member 700 and a second limiting member 800. The first limiting member 700 and the second limiting member 800 are connected to the cavity wall of the storage cavity 210, and the first limiting member 700 and the second limiting member 800 protrude relative to the cavity wall of the storage cavity 210. The first limiting member 700, the second limiting member 800 and the cavity wall of the storage cavity 210 form an arc-shaped slot 900, and the cross section of the arc-shaped slot 900 can be a sector. The arc-shaped slot 900 has the axis of the rotating member 300 as the center, and the central angle of the arc-shaped slot 900 is C, C = 180° - 2A. The schematic of the central angle of the arc-shaped slot 900 can be referred to Figure 9For example, A is 30 degrees, and C is 120 degrees. The first abutting member 500 and the second abutting member 600 are connected to the rotating member 300, and the first abutting member 500 and the second abutting member 600 both protrude radially relative to the rotating member 300. The first abutting member 500 and the second abutting member 600 are oppositely arranged, and the first abutting member 500 and the second abutting member 600 are both located outside the arc-shaped slot 900. Specifically, when the rotating member 300 rotates bidirectionally, the rotating member 300 can take the starting position as the center line, and then the rotating member 300 rotates bidirectionally along the center line. For example, C is 120 degrees, in the initial position, the initial position can refer to Figure 6 The pressure sensor 400 does not rotate by itself. That is, the rotating member 300 first rotates 30 degrees in the counterclockwise direction, at which time the pressure sensor 400 rotates 30 degrees following the rotating member 300, and then the rotating member 300 rotates 60 degrees in the clockwise direction, at which time the pressure sensor 400 first restores, and then rotates 30 degrees in the clockwise direction. When the rotating member 300 first rotates 30 degrees in the counterclockwise direction, as shown in Figure 7 , the first abutting member 500 and the first limiting member 700 abut, thereby limiting the rotating member 300 from continuing to rotate. When the rotating member 300 first rotates 60 degrees in the clockwise direction, as shown in Figure 8 , the second abutting member 600 and the second limiting member 800 abut, thereby limiting the rotating member 300 from continuing to rotate.

[0052] Further, the following describes how the limiting structure limits the range of rotation of the rotating member 300. Specifically, please refer to Figures 2 to 10 In some embodiments, the driving member is used to drive the rotating member 300 to rotate bidirectionally. The limiting structure includes the first abutting member 500, the second abutting member 600, the first limiting member 700, and the second limiting member 800. The first limiting member 700 and the second limiting member 800 are both connected to the cavity wall of the storage cavity 210, and the first limiting member 700 and the second limiting member 800 both protrude relative to the cavity wall of the storage cavity 210. The first limiting member 700, the second limiting member 800, and the cavity wall of the storage cavity 210 form the arc-shaped slot 900, and the cross section of the arc-shaped slot 900 can be a sector. The arc-shaped slot 900 takes the axis of the rotating member 300 as the center, and the central angle of the arc-shaped slot 900 is C, C = 180° - 2D, D < A. Wherein, the schematic of the central angle of the arc-shaped slot 900 can refer to Figure 9For example, A can be 30 degrees, D can be 20 degrees, and C can be 140 degrees. The first abutting member 500 and the second abutting member 600 are connected to the rotating member 300, and the first abutting member 500 and the second abutting member 600 each protrude radially relative to the rotating member 300. The first abutting member 500 and the second abutting member 600 are oppositely arranged, and the first abutting member 500 and the second abutting member 600 are both located outside the arc-shaped groove 900. Specifically, taking A as 30 degrees, D as 20 degrees, and C as 140 degrees as an example, the pressure sensor 400 can withstand a rotation angle of 30 degrees, and after the central angle of the arc-shaped groove 900 is set to 140 degrees, the maximum angle of bidirectional rotation of the rotating member 300 will not exceed 20 degrees. This can further protect the pressure sensor 400 and avoid damage to the pressure sensor 400.

[0053] Further, in some embodiments, the pressure sensor 400 and the rotating member 300 are bonded. Specifically, the pressure sensor 400 can be bonded to the rotating member 300 by glue, which has the characteristics of convenient operation and low cost.

[0054] Further, please refer to Figure 11 In some embodiments, the rotating member 300 is provided with a connecting groove 310, and the pressure sensor 400 is bonded to the groove wall of the connecting groove 310. Specifically, after the rotating member 300 is provided with the connecting groove 310, on the one hand, space is left for the pressure sensor 400 to be located therein, and on the other hand, the connecting groove 310 can facilitate bonding of the pressure sensor 400 to the groove wall, which can improve work efficiency.

[0055] Please refer to Figure 1 In some embodiments, the electric toothbrush 10 includes a brush head 1000 and the toothbrush handle 100 of any one of the above embodiments, and the toothbrush handle 100 is connected to the brush head 1000. The limiting structure can be used to limit the rotation angle of the rotating member 300, that is, when the driving member drives the rotating member 300 to rotate, the rotating member 300 can drive the pressure sensor 400 to rotate. When the rotation angle of the pressure sensor 400 is not greater than A, the pressure sensor 400 can detect the pressure value on the rotating member 300. Further, since the limiting structure can make the maximum angle of rotation of the rotating member 300 not exceed A, the angle of rotation of the pressure sensor 400 will not exceed A, so that the pressure sensor 400 will not be damaged, and the pressure sensor 400 can normally detect the pressure value on the rotating member 300. Specifically, the toothbrush handle 100 can effectively prevent the pressure sensor 400 from being damaged. Further, the electric toothbrush 10 with the toothbrush handle 100 has high reliability.

[0056] The utility model embodiment has been explained in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiment, still can make various changes in the knowledge range of the ordinary skill in the art who possesses under the premise of not departing from the utility model's tenet. Besides, the embodiment and the feature in the embodiment of the utility model can be combined mutually under the condition of not conflicting.

Claims

1. A toothbrush handle characterized by, The application relates to a shell with a storage cavity, a driving element arranged in the storage cavity, a rotating element arranged in the storage cavity and connected to the driving element, a pressure sensor connected to the rotating element, the driving element being used to drive the rotating element to rotate, so that the rotating element drives the pressure sensor to rotate, wherein the pressure sensor can detect the pressure value on the rotating element when the rotating angle of the pressure sensor is not greater than A; a limiting structure arranged in the storage cavity and used to limit the rotating angle of the rotating element, so that the maximum rotating angle of the rotating element is A. The limiting structure comprises a first abutting element, a first limiting element and a second limiting element, the first limiting element and the second limiting element are both connected to the cavity wall of the storage cavity, and the first limiting element and the second limiting element both protrude relative to the cavity wall of the storage cavity, the first limiting element, the second limiting element and the cavity wall of the storage cavity form an arc-shaped groove, the arc-shaped groove takes the axis of the rotating element as the center, and the central angle of the arc-shaped groove is A; the first abutting element is connected to the rotating element, and the first abutting element protrudes radially relative to the rotating element, and the first abutting element is arranged in the arc-shaped groove. The driving element is used to drive the rotating element to rotate bidirectionally, the limiting structure comprises a first abutting element, a first limiting element and a second limiting element, the first limiting element and the second limiting element are both connected to the cavity wall of the storage cavity, and the first limiting element and the second limiting element both protrude relative to the cavity wall of the storage cavity, the first limiting element, the second limiting element and the cavity wall of the storage cavity form an arc-shaped groove, the arc-shaped groove takes the axis of the rotating element as the center, and the central angle of the arc-shaped groove is 2A; the first abutting element is connected to the rotating element, and the first abutting element protrudes radially relative to the rotating element, and the first abutting element is arranged in the arc-shaped groove. The driving element is used to drive the rotating element to rotate bidirectionally, the limiting structure comprises a first abutting element, a first limiting element and a second limiting element, the first limiting element and the second limiting element are both connected to the cavity wall of the storage cavity, and the first limiting element and the second limiting element both protrude relative to the cavity wall of the storage cavity, the first limiting element, the second limiting element and the cavity wall of the storage cavity form an arc-shaped groove, the arc-shaped groove takes the axis of the rotating element as the center, and the central angle of the arc-shaped groove is 2B, wherein B is less than A; the first abutting element is connected to the rotating element, and the first abutting element protrudes radially relative to the rotating element, and the first abutting element is arranged in the arc-shaped groove. ​ ​ 2. The toothbrush handle of claim 1, wherein ​ 3. The toothbrush handle of claim 1, wherein ​ 4. The toothbrush handle of claim 1, wherein ​ 5. The toothbrush handle of claim 1, wherein The limiting structure comprises a first abutting piece, a second abutting piece, a first limiting piece and a second limiting piece, the first limiting piece and the second limiting piece are connected to the cavity wall of the storage cavity, and the first limiting piece and the second limiting piece are protruded relative to the cavity wall of the storage cavity, the first limiting piece, the second limiting piece and the cavity wall of the storage cavity form an arc-shaped slot, the arc-shaped slot takes the axis of the rotating piece as the center, the central angle of the arc-shaped slot is C, C=180°-A; the first abutting piece and the second abutting piece are connected to the rotating piece, and the first abutting piece and the second abutting piece are protruded along the radial direction relative to the rotating piece, the first abutting piece and the second abutting piece are oppositely arranged, and the first abutting piece and the second abutting piece are located outside the arc-shaped slot.

6. The toothbrush handle of claim 1, wherein The driving piece is used for driving the rotating piece to rotate bidirectionally, the limiting structure comprises a first abutting piece, a second abutting piece, a first limiting piece and a second limiting piece, the first limiting piece and the second limiting piece are connected to the cavity wall of the storage cavity, and the first limiting piece and the second limiting piece are protruded relative to the cavity wall of the storage cavity, the first limiting piece, the second limiting piece and the cavity wall of the storage cavity form an arc-shaped slot, the arc-shaped slot takes the axis of the rotating piece as the center, the central angle of the arc-shaped slot is C, C=180°-2A; the first abutting piece and the second abutting piece are connected to the rotating piece, and the first abutting piece and the second abutting piece are protruded along the radial direction relative to the rotating piece, the first abutting piece and the second abutting piece are oppositely arranged, and the first abutting piece and the second abutting piece are located outside the arc-shaped slot.

7. The toothbrush handle of claim 1, wherein The driving piece is used for driving the rotating piece to rotate bidirectionally, the limiting structure comprises a first abutting piece, a second abutting piece, a first limiting piece and a second limiting piece, the first limiting piece and the second limiting piece are connected to the cavity wall of the storage cavity, and the first limiting piece and the second limiting piece are protruded relative to the cavity wall of the storage cavity, the first limiting piece, the second limiting piece and the cavity wall of the storage cavity form an arc-shaped slot, the arc-shaped slot takes the axis of the rotating piece as the center, the central angle of the arc-shaped slot is C, C=180°-2D, D 8. The toothbrush handle of claim 1, wherein The pressure sensor and the rotating piece are bonded.

9. The toothbrush handle of claim 8, wherein, The rotating piece is provided with a connecting slot, and the pressure sensor is bonded to the slot wall of the connecting slot.

10. An electric toothbrush characterized by It comprises: a brush head; the toothbrush handle as claimed in any one of claims 1 to 9, which is connected to the brush head.

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