CN213547337U - Driving mechanism and nursing device - Google Patents

Abstract

The embodiment of the application provides a driving mechanism and a nursing device. The drive mechanism includes: the device comprises a transmission assembly, an output assembly, a power source and an energy storage piece; the transmission assembly comprises a first transmission piece, a second transmission piece and a converter; one end of the converter is respectively connected with the first transmission piece and the second transmission piece, and the other end of the converter is in transmission connection with the output assembly; the power source is in transmission connection with at least one of the first transmission piece and the second transmission piece so as to drive the first transmission piece and the second transmission piece to move relatively; two ends of the energy storage piece are respectively connected with the first transmission piece and the second transmission piece. The embodiment of the application enlarges the amplitude of the first transmission piece and the second transmission piece, so that the output efficiency is improved. Make the invariable heterodromous motion of first driving medium and second driving medium through the power supply, reduce the impact of motion amplitude to the casing, promote user experience and feel. Meanwhile, the structure is simple, the manufacturing cost is low, and the high-frequency vibration source can be manufactured through a simple and convenient manufacturing process.

Description

Driving mechanism and nursing device

Technical Field

The application relates to the technical field of driving, in particular to a driving mechanism and a nursing device.

Background

Along with the improvement of living standard of people, in order to save time or labor, more and more driving products are used by people, and especially on personal care products such as cleaning brush products, the automatic movement of a brush head, such as rotation, reciprocating up and down movement, left and right movement and the like, is realized by utilizing an automatic control mode.

The driving mode in the prior art is to use a motor or an electromagnet to realize the reciprocating rotary driving of the nursing head through a driving mechanism. However, in many designs, the driving mechanism is often complex in structure and faces the problems of high requirements for production process, high cost and the like, or the resonance effect is not good and the user experience is poor.

SUMMERY OF THE UTILITY MODEL

This application is directed against the shortcoming of current mode, provides a actuating mechanism and nursing device for solve the actuating mechanism production technology height that prior art exists, with high costs or the not good technical problem of resonance effect.

In a first aspect, an embodiment of the present application provides a drive mechanism, including: the device comprises a transmission assembly, an output assembly, a power source and an energy storage piece;

the transmission assembly comprises a first transmission piece, a second transmission piece and a converter; one end of the converter is respectively connected with the first transmission piece and the second transmission piece, and the other end of the converter is in transmission connection with the output assembly;

the power source is in transmission connection with at least one of the first transmission piece and the second transmission piece so as to drive the first transmission piece and the second transmission piece to move relatively;

two ends of the energy storage piece are respectively connected with the first transmission piece and the second transmission piece.

In a second aspect, the present application provides a treatment apparatus including the drive mechanism provided in the first aspect.

The beneficial technical effect that actuating mechanism and nursing device that this application embodiment provided brought includes:

one end of the converter is connected with the first transmission piece and the second transmission piece, and the other end of the converter is connected with the output assembly; two ends of the energy storage piece are also respectively connected with the first transmission piece and the second transmission piece; the power source is connected with the first transmission piece and the second transmission piece to provide power to enable the first transmission piece and the second transmission piece to move relatively, the energy storage piece can store elastic potential energy while the first transmission piece and the second transmission piece move relatively, the potential energy stored in the early stage is released when the first transmission piece and the second transmission piece move in a reversing mode, the first transmission piece and the second transmission piece are driven to move relatively, the amplitude is amplified, and the output efficiency is improved. The converter in the transmission assembly is driven by the first transmission piece and the second transmission piece to move in different directions at two ends so as to drive the output assembly to rotate clockwise or anticlockwise. Adopt above-mentioned structure can make the invariable heterodromous motion of first driving medium and second driving medium, reduces the impact of motion amplitude to the casing, promotes user experience and feels. Meanwhile, the structure is simple, the manufacturing cost is low, and the high-frequency vibration source can be manufactured by a simple and convenient manufacturing process.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a nursing device provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of a driving mechanism according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a transmission assembly in a driving mechanism according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of an output assembly in a driving mechanism according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a power source in a driving mechanism according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of an energy storage member and a transmission assembly in a driving mechanism according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of an energy storage member in a driving mechanism according to an embodiment of the present disclosure;

in the figure: 1-a drive mechanism; 2-nursing the head; 3-a shell;

11-a transmission assembly; 111-a first transmission member; 112-a second transmission; 113-a converter; 1131-linker;

12-an output component; 121-clamping tongue; 122 an output shaft;

13-a power source; 131-an electromagnet; 132-a first permanent magnet; 133-a second permanent magnet;

14-an energy storage member; 141-U-shaped resonant chip;

15-fixing the bracket;

16-limiting groove.

Detailed Description

Reference will now be made in detail to the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts or parts having the same or similar functions throughout. In addition, if a detailed description of the known art is not necessary for illustrating the features of the present application, it is omitted. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.

The inventor of the present application has found that various driving products are mostly used for personal care products, such as brush products for cleaning, and automatic movement of the brush head, such as rotation, reciprocating up and down movement, left and right movement, etc., is realized by using an automatic control mode. The driving mechanism for driving the product provides power through the power source, drives the output assembly to vibrate, and in order to enable a user to obtain good experience, the impact of the driving mechanism on the hand needs to be weakened, but the structure is complex, and the problems of high production process requirement, high cost and the like are faced.

The application provides a driving mechanism and a nursing device, which aim to solve the technical problems in the prior art.

The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments.

The embodiment of the present application provides a driving mechanism 1, and a schematic structural diagram of the driving mechanism 1 is shown in fig. 2, and includes: a transmission assembly 11, an output assembly 12, a power source 13 and an energy storage member 14.

The transmission assembly 11 comprises a first transmission piece 111, a second transmission piece 112 and a converter 113; one end of the converter 113 is connected to the first transmission member 111 and the second transmission member 112, respectively, and the other end of the converter 113 is connected to the output assembly 12 in a transmission manner.

The power source 13 is in transmission connection with at least one of the first transmission piece 111 and the second transmission piece 112 to drive the first transmission piece 111 and the second transmission piece 112 to move relatively.

The two ends of the energy storage member 14 are connected to the first transmission member 111 and the second transmission member 112, respectively.

Referring to fig. 2, in the present embodiment, one end of the converter 113 is connected to the first transmission member 111 and the second transmission member 112, and the other end is connected to the output assembly 12; the two ends of the energy storage part 14 are also connected with the first transmission part 111 and the second transmission part 112 respectively; the power source 13 is connected to the first transmission member 111 and the second transmission member 112 to provide power to make them move relatively, and at the same time, the energy storage member 14 can store elastic potential energy while the first transmission member 111 and the second transmission member 112 move relatively, so as to drive the first transmission member 111 and the second transmission member 112 to move relatively, thereby amplifying the amplitude and improving the output efficiency. The converter 113 in the transmission assembly 11 is driven by the first transmission member 111 and the second transmission member 112 to move in opposite directions, so as to drive the output assembly 12 to rotate clockwise or counterclockwise. By adopting the structure, the first transmission piece 111 and the second transmission piece 112 can move in different directions constantly, so that the impact of the movement amplitude on the shell is reduced, and the user experience is improved. Meanwhile, the structure is simple, the manufacturing cost is low, and the high-frequency vibration source can be manufactured through a simple and convenient manufacturing process.

The inventor of the present application considers that both ends of the energy storage member 14 are connected to the first transmission member 111 and the second transmission member 112, respectively, so that the stored energy acts on the first transmission member 111 and the second transmission member 112. To this end, the present application provides a possible implementation for the energy storage means 14, as follows:

referring to fig. 6 and 7, the energy storage component 14 according to the embodiment of the present application may be a U-shaped resonant plate 141, and two ends of an opening of the U-shaped resonant plate 141 are respectively connected to the first transmission component 111 and the second transmission component 112.

In the present embodiment, the power source 13 drives the first transmission member 111 and the second transmission member 112 to move relatively, and two ends of the energy storage member 14 are respectively connected to the first transmission member 111 and the second transmission member 112, the relative movement of the first transmission member 111 and the second transmission member 112 forces the U-shaped resonance plate 141 to deform, and since the U-shaped resonance plate 141 has elasticity, elastic potential energy is stored in the deformation process. When the first transmission piece 111 and the second transmission piece 112 perform reversing relative motion, the U-shaped resonant plate 141 releases the elastic potential energy stored in the previous stage, and drives the first transmission piece 111 and the second transmission piece 112 to perform relative motion. Namely, the power source 13 and the U-shaped resonant plate 141 drive the first transmission member 111 and the second transmission member 112 simultaneously, so that the amplitudes of the first transmission member 111 and the second transmission member 112 are amplified, and the output efficiency is improved.

Optionally, the symmetry axis of the U-shaped resonator plate 141 is perpendicular or approximately perpendicular to the movement planes of the first transmission member 111 and the second transmission member 112, so as to ensure that the first transmission member 111 and the second transmission member 112 are stressed uniformly and impact on the housing is uniform, and according to the mechanical vector synthesis method, the first transmission member 111 and the second transmission member 112 are stressed in the movement direction thereof to offset, so that the impact force experienced by the user is reduced, and the user experience is improved.

Alternatively, the energy accumulating member 14 may be made of an elastic material, such as a torsion spring.

In another possible embodiment, the energy storage members 14 are provided in an even number and are symmetrically disposed on both sides of the converter 113.

In the present embodiment, referring to fig. 6, in order to keep the forces applied to the two ends of the first transmission member 111 and the second transmission member 112 uniform, an even number of energy storage members 14 are symmetrically and uniformly distributed on the two sides of the converter 113, and are connected to the two ends of the first transmission member 111 or the second transmission member 112.

In one possible embodiment, the converter 113 has at least two connecting portions 1131 at one end, and the at least two connecting portions 1131 are respectively connected to the first transmission member 111 and the second transmission member 112.

In the present embodiment, referring to fig. 3, the power source 13 drives the first transmission member 111 and the second transmission member 112 to move relatively, the connection portion 1131 is disposed on the first transmission member 111 and the second transmission member 112, and the connection portion 1131 is connected to the converter 113, so that the power source 13 indirectly drives the converter 113 to rotate, thereby driving the output assembly 12 connected to the converter 113.

In one possible embodiment, the output assembly 12 comprises: a latch 121 and an output shaft 122. One end of the latch 121 is clamped with the other end of the converter 113, and the other end of the latch 121 is in transmission connection with the output shaft 122.

Referring to fig. 4, in the present embodiment, the converter 113 is connected to the output shaft 122 through the latch 121, so that the converter 113 drives the output shaft 122 to rotate.

Alternatively, the latch 121 may be made of plastic.

In a possible embodiment, the drive mechanism 1 comprises a fixed support 15 and a bearing (not shown), the fixed support 15 having a through hole (not shown) in which the bearing is arranged, the inner ring of the bearing being sleeved with the output shaft 122.

In the present embodiment, the fixing bracket 15 fixes the whole driving mechanism 1 to provide a good fixing effect, improve the service life of the driving mechanism, and ensure good usability. The upper end and the lower end of the converter 113 are deformed by the relative movement of the first transmission member 111 and the second transmission member 112, respectively, and are constrained by the output shaft 122 and the bearing, so that the direction is twisted clockwise or counterclockwise around the output shaft 122.

Alternatively, the energy storage member 14, the converter 113, the first transmission member 111 and the second transmission member 112 are integrally formed with the fixed bracket 15 through an injection molding process. This makes the entire drive mechanism 1 more rigid, facilitating application, assembly and maintenance of the drive mechanism 1.

Optionally, the fixing bracket 15 further has a limiting groove 16 on a side thereof close to the energy storage member 14, and a part of the energy storage member 14 extends into the limiting groove 16.

Referring to fig. 4, in the present embodiment, in the process of deformation of the energy storage component 14, the limiting groove 16 provides a limiting effect on the energy storage component 14, so as to prevent damage to the component caused by excessive deformation and ensure good usability of the driving mechanism 1.

In one possible embodiment, the power source 13 comprises: an electromagnet 131, a first permanent magnet 132, and a second permanent magnet 133.

The first permanent magnet 132 is fixedly connected with the first transmission piece 111, the second permanent magnet 133 is fixedly connected with the second transmission piece 112, and the polarities of the first permanent magnet 132 and the second permanent magnet 133 are opposite.

The electromagnet 131 is coupled to the first permanent magnet 132 and the second permanent magnet 133, respectively.

The inventor of the application finds that the power source for providing power can be a vibration source generated by an eccentric wheel motor or a vibration source which generates an alternating magnetic field by using a magnetic coil to enable a mechanical driving mechanism to generate vibration.

Alternatively, the method of using a solenoid to drive the mechanical driving mechanism to generate vibration can output power well and can be effectively controlled in the hand-held comfort.

Referring to fig. 5, in one possible embodiment, the magnetic coil is an electromagnet 131 that is insert molded with a coil fixing bracket, which may be plastic. The formed electromagnet 131 and the transmission assembly 11 form the whole high-frequency power device.

In the present embodiment, the first permanent magnet 132 and the second permanent magnet 133 are both magnets having the same plane and different polarity, and the polarity needs to be opposite in the apparatus. The first permanent magnet 132 is fixedly connected with the first transmission piece 111, the second permanent magnet 133 is fixedly connected with the second transmission piece 112, and the polarities of the first permanent magnet 132 and the second permanent magnet 133 are opposite. Since the polarities of the first permanent magnet 132 and the second permanent magnet 133 are opposite, the first permanent magnet 132 and the second permanent magnet 133 can perform a relative movement. Because the first permanent magnet 132 is fixedly connected with the first transmission member 111, and the second permanent magnet 133 is fixedly connected with the second transmission member 112, when the first permanent magnet and the second permanent magnet 133 perform relative motion, the first transmission member 111 and the second transmission member 112 are driven to perform relative motion, so as to drive the converter 113 to generate deformation, and the output shaft 122 is rotated.

In the present embodiment, the electromagnets 131 are coupled to the first and second permanent magnets 132 and 133, respectively.

In order to prevent the first permanent magnet 132 and the second permanent magnet 133 from being directly attracted to the electromagnet 131, a reasonable magnetic gap must be maintained between the electromagnet 131 and the transmission assembly 11 to prevent the first permanent magnet and the second permanent magnet 133 from being influenced by the opposite attraction of the magnets.

In the present embodiment, the operating principle of the power source 13 is as follows: the electromagnet 131 needs to be connected with a current with the direction alternating between positive and negative, and according to the ampere rule, the electromagnet 131 generates an alternating magnetic field to form a closed magnetic circuit after being acted by the alternating current. The electromagnet 131 generates magnetism with changed polarity under the action of the alternating current, and drives the first permanent magnet 132 and the second permanent magnet 133 to do periodic reciprocating motion. The upper end and the lower end of the converter 113 are deformed by the action of the first permanent magnet and the second permanent magnet 133 in different directions, and the converter is constrained by the output shaft 122 and the bearing, so that the converter is twisted clockwise around the output shaft 122. The torsion of the converter 113 outputs the electromagnetic force to the output shaft 122 to output the torque, thereby driving the output shaft 122 to vibrate.

In the present embodiment, when the U-shaped resonant plate 141 is subjected to the action of the first transmission member 111 and the second transmission member 112 in different directions, the process of expanding and deforming is substantially a spring elastic potential energy storage process. When the coil current is reversed, the stress direction of the U-shaped resonant plate 141 is changed, and the opening direction is also changed in the opposite direction. During the course of the change, a cyclical change from energy release to energy storage occurs. When the coil driving current is the same as the natural frequency of the U-shaped resonant piece 141, system resonance is generated, the amplitude of the magnet is obviously improved, and the output energy efficiency is obviously improved. In order to obtain different output frequency values with high efficiency, the physical parameters of the U-shaped resonator plate 141 can be adjusted. The rigidity of the U-shaped resonant plate 141 can be adjusted to improve the rigidity, and the resonant frequency can be increased, otherwise, the resonant frequency can be decreased. The parameters of rigidity are related to material thickness, size and heat treatment process.

Based on the same inventive concept, the nursing device provided in the embodiments of the present application includes the driving mechanism 1 provided in any one of the embodiments described above.

Referring to fig. 1, in the present embodiment, the nursing device employs the driving mechanism 1 provided in the foregoing embodiments, and the principle and technical effects thereof refer to the foregoing embodiments and are not described herein again.

In one possible embodiment, a care device comprises: a nursing head 2, a shell 3 and a main control module (not shown in the figure).

The main control module and the driving mechanism 1 are respectively accommodated in the shell 3, and the main control module is electrically connected with a power source 13 in the driving mechanism 1.

The other end of the output component 12 in the driving mechanism 1 is in transmission connection with the nursing head 2.

Alternatively, the treatment head 2 may be a cleaning structure such as a toothbrush, a face brush, or the like, or a massaging structure, or the like. The corresponding nursing device is an electric toothbrush, an electric face washing instrument or an electric massage instrument and the like. The main control module and the driving mechanism 1 are disposed in the housing 3, and when the main control module provides an alternating current, the magnitude and direction of the magnetic force generated by the electromagnet 131 in the driving mechanism 1 will change. Usually, the driving mechanism 1 is operated in an optimal resonance state, that is, the alternating electric field is matched with the natural frequency of the transmission assembly 11, and at this time, the output efficiency is highest and the driving capability is strongest.

By applying the embodiment of the application, at least the following beneficial effects can be realized:

1. the whole power has simple structure, high efficiency and low manufacturing cost, and can construct a high-frequency vibration source through a simple and convenient manufacturing process.

2. The U-shaped resonant plate 141 amplifies the amplitude of the anisotropic motion of the first transmission member 111 and the second transmission member 112, optimizes the driving mode, and improves the output efficiency.

3. The first transmission piece 111 and the second transmission piece 112 move in different directions constantly, so that the impact of the movement amplitude on the machine shell is reduced, and the user experience is improved.

4. The symmetry axis of the U-shaped resonant plate 141 is perpendicular or approximately perpendicular to the movement planes of the first transmission member 111 and the second transmission member 112, so as to ensure that the first transmission member 111 and the second transmission member 112 are stressed uniformly and impact on the case is uniform.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.

Claims (10)

1. A drive mechanism, comprising: the device comprises a transmission assembly, an output assembly, a power source and an energy storage piece;

the transmission assembly comprises a first transmission piece, a second transmission piece and a converter; one end of the converter is connected with the first transmission piece and the second transmission piece respectively, and the other end of the converter is in transmission connection with the output assembly;

the power source is in transmission connection with at least one of the first transmission piece and the second transmission piece so as to drive the first transmission piece and the second transmission piece to move relatively;

and two ends of the energy storage piece are respectively connected with the first transmission piece and the second transmission piece.

2. The driving mechanism as claimed in claim 1, wherein the energy storage member is a U-shaped resonant plate, and two ends of the opening of the U-shaped resonant plate are respectively connected to the first transmission member and the second transmission member.

3. The drive mechanism as recited in claim 1, wherein the energy storage members are an even number and are symmetrically disposed on opposite sides of the converter.

4. The drive mechanism as recited in claim 1, wherein the one end of the converter has at least two connecting portions, the at least two connecting portions being connected to the first transmission member and the second transmission member, respectively.

5. The drive mechanism as recited in claim 1, wherein the output assembly comprises: the clamping tongue and the output shaft;

one end of the clamping tongue is connected with the other end of the converter in a clamping mode, and the other end of the clamping tongue is in transmission connection with the output shaft.

6. The drive mechanism as claimed in claim 5, wherein the drive mechanism comprises a fixed bracket and a bearing, the fixed bracket is provided with a through hole, the bearing is arranged at the through hole, and an inner ring of the bearing is sleeved with the output shaft.

7. The drive mechanism as recited in claim 6, wherein the fixing bracket further has a limiting groove on a side thereof adjacent to the energy accumulating member, and a portion of the energy accumulating member extends into the limiting groove.

8. The drive mechanism as recited in claim 1, wherein the power source comprises: the electromagnet, the first permanent magnet and the second permanent magnet;

the first permanent magnet is fixedly connected with the first transmission piece, the second permanent magnet is fixedly connected with the second transmission piece, and the polarities of the first permanent magnet and the second permanent magnet are opposite;

the electromagnet is coupled with the first permanent magnet and the second permanent magnet respectively.

9. A care device, characterized in that it comprises a drive mechanism according to any one of claims 1-8.

10. The care device of claim 9, further comprising: the nursing head, the shell and the main control module;

the main control module and the driving mechanism are respectively accommodated in the shell, and the main control module is electrically connected with a power source in the driving mechanism;

the other end of the output assembly in the driving mechanism is in transmission connection with the nursing head.

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