Electric toothbrush control structure

Abstract

The utility model relates to the field of electric toothbrushes, and provides an electric toothbrush control structure which comprises a motor, a grating and a photoelectric switch, a transmission shaft is arranged on the motor, and one end of the transmission shaft is suitable for installing a toothbrush head; the grating is mounted at the other end of the transmission shaft, at least one group of first openings and two groups of second openings are formed in the outer side wall of the grating, and the at least one group of first openings are formed in the same side between the two groups of second openings; and the photoelectric switch is arranged outside the grating, is suitable for detecting the positions of the first openings and the second openings and is used for controlling the transmission shaft to rotate between the two second openings. According to the electric toothbrush control structure, the grating is arranged at the end of the transmission shaft, the photoelectric switch can detect the positions of the first openings and the second openings in the grating, then the transmission shaft is accurately controlled to rotate between the two sets of second openings, the photoelectric switch and the grating are matched with each other, accurate control over an electric toothbrush is achieved, and the structure is simple in technological structure and low in cost. Assembly is convenient and cost is low.

Description

Technical Field

[0001] The utility model relates to the field of electric toothbrushes, and further relates to an electric toothbrush control structure. Background Art

[0002] As people pay more and more attention to dental health, electric toothbrushes, a small personal care appliance, are becoming more and more popular. Most existing electric toothbrushes use Hall sensors to control the sweeping of the electric toothbrush, which usually requires 1-2 sets of Hall sensors to be placed, and the assembly of the Hall sensor is relatively complicated, especially the fixing of the magnet is difficult. Utility Model Content

[0003] In view of the above technical problems, the purpose of the utility model is to provide an electric toothbrush control structure, in which a grating is provided at the end of the transmission shaft, and the photoelectric switch can detect the positions of the first opening and the second opening on the grating, thereby accurately controlling the rotation of the transmission shaft between the two groups of second openings. The photoelectric switch and the grating cooperate with each other to achieve precise control of the electric toothbrush. This structure has a simple process structure, is easy to assemble, and is inexpensive.

[0004] In order to achieve the above-mentioned purpose, the utility model provides an electric toothbrush control structure, including a motor, a grating and a photoelectric switch, the motor is provided with a transmission shaft, one end of the transmission shaft is suitable for mounting a toothbrush head; the grating is installed at the other end of the transmission shaft, at least one group of first openings and two groups of second openings are provided on the outer side wall of the grating, at least one group of the first openings is arranged on the same side between the two groups of the second openings; the photoelectric switch is arranged on the outer side of the grating and is suitable for detecting the positions of the first opening and the second opening, so as to control the rotation of the transmission shaft between the two groups of the second openings.

[0005] In some embodiments, a preset angle is formed between the two groups of the second openings, and the two groups of the second openings are relatively located on two sides of the first opening.

[0006] In some embodiments, the first openings form a group, and two groups of the second openings are symmetrically arranged on both sides of the first opening.

[0007] In some embodiments, there are three groups of the first openings, the three groups of the first openings are spaced between the two groups of the first openings, and the two groups of the second openings are symmetrically arranged relative to the middle group of the first openings.

[0008] In some embodiments, the second opening is larger than the first opening, and the number of the photoelectric switch is at least one.

[0009] In some embodiments, the motor is a servo motor, the transmission shaft includes a first shaft and a second shaft, the second shaft is located at an end of the first shaft, and the diameter of the second shaft is smaller than the diameter of the first shaft;

[0010] The grating includes a first part and a second part, the second part is sleeved on the second axis, the first part is sleeved on the first axis, and the first opening and the second opening are both arranged on the outer side wall of the second part.

[0011] In some embodiments, the cross-sections of the second shaft outer sidewall and the second portion inner sidewall are both D-shaped;

[0012] A slot is also provided on the outer side wall of the second shaft, and a buckle is also provided on the inner side wall of the second part. The buckle is suitable for being fixed in the slot so that the grating is fixedly mounted on the transmission shaft.

[0013] In some embodiments, an end cover is further provided at the end of the motor, the end cover is fixedly mounted on the other end of the transmission shaft, the grating is arranged in the end cover, and a circuit board is further provided at one end of the end cover away from the motor.

[0014] In some embodiments, the photoelectric switch is welded and fixed to a side of the circuit board close to the motor, and the photoelectric switch matches the position of the grating.

[0015] In some embodiments, a controller is further included, wherein the controller receives a signal from the photoelectric switch and controls the motor to rotate between two groups of the second openings.

[0016] Compared with the prior art, the electric toothbrush control structure provided by the utility model has at least one of the following beneficial effects:

[0017] 1. A grating is provided at the end of the transmission shaft. The photoelectric switch can detect the positions of the first opening and the second opening on the grating, and then accurately control the rotation of the transmission shaft between the two sets of second openings. The photoelectric switch and the grating cooperate with each other to achieve precise control of the electric toothbrush. This structure has a simple process structure, is easy to assemble, and is low in price.

[0018] 2. The two groups of second openings are symmetrically arranged on both sides of the first opening, and the transmission shaft reciprocates between the two groups of second openings with the first opening as the center. The rotation angle of the transmission shaft can be better determined through multiple groups of first openings.

[0019] 3. The grating sleeve is fixed on the end of the transmission shaft, so that the grating rotates with the transmission shaft and is easy to install and portable; the buckle on the second part is suitable for snapping into the slot fixed on the second shaft, so that the grating is fixedly installed on the transmission shaft, enhancing the installation strength of the grating and preventing the grating from falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0021] Figure 1 It is an overall diagram of the control structure of an electric toothbrush;

[0022] Figure 2 It is a block diagram of the control structure of an electric toothbrush;

[0023] Figure 3 It is the structural diagram of the grating;

[0024] Figure 4 It is an exploded diagram of the control structure of an electric toothbrush;

[0025] Figure 5 It is an exploded view of the control structure of an electric toothbrush from another angle;

[0026] Figure 6 This is the installation cross-sectional view of the grating and the drive shaft.

[0027] Description of Figure Numbers:

[0028] Motor 1, transmission shaft 11, first shaft 111, second shaft 112, slot 113, end cover 114, fixing member 115, grating 2, first portion 21, second portion 22, first opening 221, second opening 222, buckle 223, photoelectric switch 3, circuit board 4. DETAILED DESCRIPTION

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0030] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0031] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0032] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0033] In addition, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance. It should be noted that the above embodiments can be freely combined as needed. The above are only preferred implementations of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications should also be regarded as the scope of protection of the utility model.

[0034] refer to Figures 1 to 3 The utility model provides an electric toothbrush control structure, including a motor 1, a grating 2 and a photoelectric switch 3. The motor 1 is provided with a transmission shaft 11, and one end of the transmission shaft 11 is suitable for mounting a toothbrush head; the grating 2 is mounted on the other end of the transmission shaft 11, and at least one group of first openings 221 and two groups of second openings 222 are provided on the outer wall of the grating 2, and at least one group of first openings 221 is arranged on the same side between the two groups of second openings 222; the photoelectric switch 3 is arranged on the outer side of the grating 2 and is suitable for detecting the positions of the first opening 221 and the second opening 222, so as to control the transmission shaft 11 to rotate between the two groups of second openings 222.

[0035] In this embodiment, a grating 2 is provided at the end of the transmission shaft 11, and the photoelectric switch 3 can detect the positions of the first opening 221 and the second opening 222 on the grating 2, thereby accurately controlling the rotation of the transmission shaft 11 between the two groups of second openings 222. The photoelectric switch 3 and the grating 2 cooperate with each other to achieve precise control of the electric toothbrush. This structure has a simple process structure, is easy to assemble, and is low in price.

[0036] Specifically, the first opening 221 is arranged between the two groups of second openings 222, and the first opening 221 is used to determine the rotation direction of the transmission shaft 11, that is, the two groups of second openings 222 divide the outer wall of the grating 2 into a first side and a second side, at least one group of first openings 221 is arranged on the first side or the second side, and the two groups of second openings 222 are relatively located on both sides of at least one group of first openings 221. When the electric toothbrush is in the initial state, the transmission shaft 11 rotates one circle, and the photoelectric switch 3 first identifies the position of the first opening 221, and then drives the transmission shaft 11 to rotate on the first side. In special cases, at least one group of first openings 221 can also be arranged on different sides between the two groups of second openings 222, that is, at least one group of first openings 221 is arranged on the first side, and at least one group of first openings 221 is arranged on the second side, so as to meet the rotation of the transmission shaft 11 in specific situations. The two groups of second openings 222 form a preset angle between them. The second openings 222 and the first openings 221 are both arranged along the radial direction of the grating 2. The preset angle between the two groups of second openings 222 is the angle formed by the two second openings 222 extending along the radial direction of the grating 2, that is, this preset angle is the angle between the replacement radii of the second openings 222. This preset angle is also the rotation range of the transmission shaft 11 and the cleaning range of the electric toothbrush. The specific value of this preset angle is not further limited in this application. The grating 2 can be customized according to the scene requirements, and the grating 2 has second openings 222 with different preset angles. In this embodiment, the preset angle is 30 degrees. During verification, the transmission shaft 11 can first rotate one circle, detect the positions of the first opening 221 and the two groups of second openings 222 through the photoelectric switch 3, and then drive the transmission shaft 11 to the first opening 221, that is, the photoelectric switch 3 matches the position of the first opening 221, and then reciprocate the transmission shaft 11 between the two groups of second openings 222. The first opening 221 plays an auxiliary positioning role to determine on which side of the two groups of second openings 222 the electric toothbrush needs to rotate.

[0037] It is worth noting that the grating 2 is a plastic part or a sheet metal part. The present application can achieve different types of outputs by changing the size and position of the first opening 221 and the second opening 222 on the grating 2. The opening of the second opening 222 is different from the opening of the first opening 221, so that the time required for the photoelectric switch 3 to pass through the first opening 221 and the second opening 222 is different, so that the photoelectric switch 3 can judge the first opening 221 and the second opening 222. In this embodiment, the opening of the second opening 222 is larger than the opening of the first opening 221 to better judge the rotation angle of the transmission shaft 11. Of course, in a further modified embodiment, the opening of the second opening 222 can also be smaller than the opening of the first opening 221. At the same time, there is at least one photoelectric switch 3, and multiple photoelectric switches 3 can also cooperate with each other.

[0038] Further, the first opening 221 is a group, and the two groups of second openings 222 are symmetrically arranged on both sides of the first opening 221. In this embodiment, the two groups of second openings 222 are symmetrically arranged on both sides of the first opening 221, and the transmission shaft 11 performs symmetrical reciprocating rotation between the two groups of second openings 222 with the first opening 221 as the center, and the rotation angle of the transmission shaft 11 can be better judged through the first opening 221. Specifically, the first opening 221 is arranged in the middle of the two groups of second openings 222, and the first opening 221 itself also has an angle. When the photoelectric switch 3 passes through the first opening 221, the transmission shaft 11 of the electric toothbrush rotates to an angle indicated by the first opening 221, and then the rotation angle of the transmission shaft 11 can be better detected through the first opening 221.

[0039] Preferably, reference Figure 3 The first openings 221 may also be three groups, the three groups of first openings 221 are spaced between the two groups of first openings 221 , and the two groups of second openings 222 are symmetrically arranged relative to the middle group of first openings 221 .

[0040] In this embodiment, the first openings 221 all play the role of auxiliary positioning. The multiple groups of first openings 221 are arranged in the middle of the two groups of second openings 222. Each first opening 221 itself also has an angle. When the photoelectric switch 3 passes through the first opening 221, the transmission shaft 11 of the electric toothbrush rotates to the angle indicated by the first opening 221, and then the rotation angle of the transmission shaft 11 can be detected in real time through the first openings 221, and the rotation angle of the transmission shaft 11 can be detected more specifically and comprehensively. Preferably, the first openings 221 at the edge are relatively located in the center of the middle first opening 221 and the second opening 222, that is, the first openings 221 at the edge are respectively located at the 1 / 4 and 3 / 4 positions of the two groups of second openings 222, and the middle first opening 221 is located at the 1 / 2 position of the two groups of second openings 222. If the preset angle of the two groups of second openings 222 is 32 degrees, that is, the three groups of first openings 221 represent 8 degrees, 16 degrees, and 24 degrees respectively, the photoelectric switch 3 identifies the three groups of first openings 221, and can realize the rotation output of the transmission shaft 11 in various ranges.

[0041] Further, refer to Figure 3 and Figure 6 The motor 1 is a servo motor, the transmission shaft 11 includes a first shaft 111 and a second shaft 112, the second shaft 112 is located at the end of the first shaft 111, and the diameter of the second shaft 112 is smaller than the diameter of the first shaft 111; the grating 2 includes a first part 21 and a second part 22, the second part 22 is sleeved on the second shaft 112, the first part 21 is sleeved on the first shaft 111, and the first opening 221 and the second opening 222 are both arranged on the outer wall of the second part 22.

[0042] In this embodiment, the grating 2 is fixedly mounted on the end of the transmission shaft 11, so that the grating 2 rotates with the transmission shaft 11 and is portable to install.

[0043] Specifically, the cross-sections of the outer side wall of the second shaft 112 and the inner side wall of the second part 22 are both D-shaped, and the second part 22 is suitable for matching and installing on the second shaft 112, that is, the second part 22 rotates with the second shaft 112. It is worth noting that the cross-sections of the outer side wall of the second shaft 112 and the inner side wall of the second part 22 can also be other irregular shapes, such as elliptical, oval, etc. As long as the second part 22 is matched and installed with the second shaft 112 and can rotate synchronously. At the same time, a slot 113 is also provided on the outer side wall of the second shaft 112, and a buckle 223 is also provided on the inner side wall of the second part 22. The buckle 223 is suitable for being fixed in the slot 113 by snapping, so that the grating 2 is fixedly installed on the transmission shaft 11, the installation strength of the grating 2 is enhanced, and the grating 2 is prevented from falling. It is worth noting that the motor 1 of the present application includes but is not limited to a servo motor. Those skilled in the art can easily think of using other types of motors, and this application will not be further elaborated.

[0044] Further, refer to Figure 4 and Figure 5 An end cover 114 is also provided at the end of the motor 1. The end cover 114 is fixedly mounted on the other end of the transmission shaft 11. The grating 2 is arranged in the end cover 114. A circuit board 4 is also provided at one end of the end cover 114 away from the motor 1.

[0045] Specifically, the end cover 114 is installed at the bottom of the motor 1 through a fixing member 115, and a fixing column is provided on the inner wall of the end cover 114. The circuit board 4 is fixed to the fixing column through the fixing member 115. At this time, the circuit board 4 is relatively located on the side of the end cover 114 away from the motor 1. The fixing member 115 includes screws, bolts, etc. The photoelectric switch 3 is welded and fixed to the side of the circuit board 4 close to the motor 1, and the position of the photoelectric switch 3 matches the grating 2. The photoelectric switch 3 is welded on the circuit board 4 through a patch process or a plug-in process, which is a prior art in the field and is not further limited in this application. At the same time, a controller is also provided on the circuit board, which receives the signal of the photoelectric switch 3 and controls the motor 1 to rotate between the two sets of second openings 222.

[0046] It should be noted that the above embodiments can be freely combined as needed. The above are only preferred implementations of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims

1. An electric toothbrush control structure, characterized in that: include: A motor, wherein the motor is provided with a transmission shaft, one end of which is suitable for mounting a toothbrush head; A grating, the grating being mounted on the other end of the transmission shaft, the outer side wall of the grating being provided with at least one group of first openings and two groups of second openings, and at least one group of the first openings being arranged on the same side between the two groups of the second openings; A photoelectric switch is arranged outside the grating and is suitable for detecting the positions of the first opening and the second opening, so as to control the transmission shaft to rotate between two groups of the second openings.

2. An electric toothbrush control structure according to claim 1, characterized in that: A preset angle is formed between the two groups of the second openings, and the two groups of the second openings are relatively located on two sides of the first opening.

3. An electric toothbrush control structure according to claim 2, characterized in that: The first openings form a group, and two groups of the second openings are symmetrically arranged on both sides of the first opening.

4. The electric toothbrush control structure according to claim 2, characterized in that: There are three groups of the first openings, the three groups of the first openings are arranged between the two groups of the first openings, and the two groups of the second openings are symmetrically arranged relative to the middle group of the first openings.

5. The electric toothbrush control structure according to claim 4, characterized in that: The second opening is larger than the first opening, and there is at least one photoelectric switch.

6. The electric toothbrush control structure according to claim 1, characterized in that: The motor is a servo motor, the transmission shaft comprises a first shaft and a second shaft, the second shaft is located at the end of the first shaft, and the diameter of the second shaft is smaller than the diameter of the first shaft; The grating includes a first part and a second part, the second part is sleeved on the second axis, the first part is sleeved on the first axis, and the first opening and the second opening are both arranged on the outer side wall of the second part.

7. The electric toothbrush control structure according to claim 6, characterized in that: The cross-sections of the outer side wall of the second shaft and the inner side wall of the second portion are both D-shaped; A slot is also provided on the outer side wall of the second shaft, and a buckle is also provided on the inner side wall of the second part. The buckle is suitable for being fixed in the slot so that the grating is fixedly mounted on the transmission shaft.

8. The electric toothbrush control structure according to claim 7, characterized in that: An end cover is also provided at the end of the motor, and the end cover is fixedly mounted on the other end of the transmission shaft. The grating is arranged in the end cover, and a circuit board is also provided at one end of the end cover away from the motor.

9. The electric toothbrush control structure according to claim 8, characterized in that: The photoelectric switch is welded and fixed on a side of the circuit board close to the motor, and the photoelectric switch matches the position of the grating.

10. The electric toothbrush control structure according to claim 9, characterized in that: The device also includes a controller, which receives a signal from the photoelectric switch and controls the motor to rotate between two groups of the second openings.

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