Beauty instrument

Abstract

The utility model discloses a beauty instrument which comprises the components of a machine body which is provided with at least one first magnetic member; the electrode tip comprises a connecting structure, the electrode tip is separably matched with the machine body through the connecting structure, at least one side, in the first direction, of the connecting structure is provided with an extension part, the extension part is provided with a second magnetic attraction part, and the polarity of the second magnetic attraction part is opposite to that of the first magnetic attraction part. According to the beauty instrument, the assembly operation of the electrode tip and the machine body is simple, energy emitted by the beauty instrument is prevented from being shielded, and the beauty effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of beauty instruments, in particular to a beauty instrument. Background Art

[0002] More and more people are beginning to pay attention to their own health care and beauty. Beauty can usually be achieved through electric current, electric pulse, micro vibration, various light irradiation, elevated body temperature, microwave and vacuum adsorption. Beauty instrument is a machine that adjusts and improves the body and face according to the physiological functions of the human body. It has multiple functions such as whitening, skin rejuvenation, freckle removal, wrinkle removal, hair removal, etc.

[0003] In the related art, the beauty instrument includes a body and an electrode head, and the electrode head contacts the face to emit energy. However, the installation between the electrode head and the body is too complicated, and there are many assembly processes, which affects the assembly efficiency of the product. In addition, the connection structure on the electrode head is easy to block the light emitted by the electrode head, thereby reducing the use effect of the beauty instrument. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a beauty instrument, the assembly operation of the electrode head and the body is simple, and the energy emitted by the beauty instrument is avoided to be blocked, thereby improving the beauty effect.

[0005] According to the embodiment of the utility model, the beauty instrument includes: a body, on which is provided at least one first magnetic component; an electrode head, which includes a connecting structure, and the electrode head is detachably matched with the body through the connecting structure, and the connecting structure has an extension portion on at least one side along the first direction, and the extension portion is provided with a second magnetic component, and the polarity of the second magnetic component is opposite to that of the first magnetic component; when the electrode head is matched with the body, the first magnetic component and the second magnetic component are opposite to each other along the first direction.

[0006] According to the beauty instrument of the utility model, the electrode head is installed on the body through the interaction between the first magnetic member and the second magnetic member, and the installation operation is simple, which is conducive to the rapid installation of the electrode head. The first magnetic member and the second magnetic member are installed on the side of the beauty instrument along the first direction, thereby avoiding blocking the light or energy emitted by the beauty instrument, increasing the irradiation area of ​​the energy emitted by the beauty instrument, and thus improving the beauty effect of the beauty instrument. In addition, the extension part can be pre-assembled, thereby improving the assembly accuracy of the electrode head and the body, and also improving the assembly efficiency of the electrode head and the body.

[0007] According to some embodiments of the present invention, a mounting groove is formed on a side of the connecting structure away from the body, and the electrode head further comprises: a main body, and the main body is fitted in the mounting groove.

[0008] According to some embodiments of the utility model, at least one opening is formed on the bottom wall of the mounting groove, a first accommodating groove is formed on the extension portion, the first accommodating groove is connected to the mounting groove through the opening, and the second magnetic attraction member is disposed in the first accommodating groove.

[0009] According to some embodiments of the present invention, the cross-sectional area of ​​the first accommodating groove gradually decreases along the direction of the electrode head toward the machine body.

[0010] According to some embodiments of the utility model, the width of the extension portion gradually decreases along the direction of the electrode head toward the body; and / or, along the direction of the electrode head toward the body, the side surface of the extension portion away from the body bends and extends toward the direction close to the body.

[0011] According to some embodiments of the present invention, at least one second accommodating groove is formed on the body, and the first magnetic attraction member is disposed in the second accommodating groove.

[0012] According to some embodiments of the present invention, at least one groove is formed on the outer peripheral surface of the body, and when the electrode head is fitted on the body, the extension portion fits in the groove.

[0013] According to some embodiments of the present utility model, along the direction from the electrode head toward the machine body, the bottom wall of the groove extends obliquely toward the center of the machine body.

[0014] According to some embodiments of the present invention, the side wall of the groove extends obliquely from the center of the body toward the outer peripheral surface of the body toward the center of the groove.

[0015] According to some embodiments of the utility model, a plurality of the first magnetic members are provided on the body, and the plurality of the first magnetic members are respectively located on both sides of the body along the first direction, and the extension parts are respectively provided on both sides of the connecting structure along the first direction, and the second magnetic members of the plurality of the extension parts are respectively matched with the plurality of the first magnetic members.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 is a schematic diagram of a beauty instrument according to an embodiment of the utility model;

[0019] Figure 2 is a cross-sectional view of a beauty instrument according to an embodiment of the utility model;

[0020] Figure 3 is an exploded view of a beauty instrument according to an embodiment of the utility model;

[0021] Figure 4 It is a cross-sectional view of the beauty instrument after explosion according to the embodiment of the utility model.

[0022] Reference numerals:

[0023] 100. Beauty instrument;

[0024] 1. body; 11. first magnetic attraction member; 12. second receiving slot;

[0025] 13. groove; 14. shell; 15. body;

[0026] 2. electrode head; 21. connection structure; 211. extension part;

[0027] 2111, second magnetic attraction member; 2112, first receiving groove;

[0028] 212, mounting groove; 2121, opening; 22, main body. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Figure 1-Figure 4 A beauty instrument 100 according to an embodiment of the present invention is described.

[0030] like Figure 1 and Figure 2 As shown, the beauty instrument 100 according to the embodiment of the utility model includes a body 1 and an electrode head 2.

[0031] Specifically, at least one first magnetic attraction member 11 is provided on the body 1, and the electrode head 2 includes a connecting structure 21. The electrode head 2 is detachably matched with the body 1 through the connecting structure 21. The connecting structure 21 is arranged along a first direction (for example, Figure 1 At least one side of the electrode head 2 (in the left and right directions shown) has an extension portion 211, and a second magnetic member 2111 is provided on the extension portion 211. The polarity of the second magnetic member 2111 is opposite to that of the first magnetic member 11. When the electrode head 2 is matched with the body 1, the first magnetic member 11 and the second magnetic member 2111 are connected along the first direction (for example, Figure 1 and Figure 2 The left and right directions in the figure are relative.

[0032] For example, in Figure 1 and Figure 2In the example, the connecting structure 21 is snapped onto the outside of the body 1, and when the electrode head 2 is fitted on the body 1, the first magnetic member 11 is located on one side of the body 1 along the left-right direction, and the extension portion 211 is located on the outside of the above-mentioned side of the body 1. The setting of the extension portion 211 includes the following situations: First, the extension portion 211 is located on the right side of the connecting structure 21. Second, the extension portion 211 is located on the left side of the connecting structure 21. Third, the extension portions 211 are respectively provided on the left and right sides of the connecting structure 21. The side of the electrode head 2 on which the extension portion 211 is provided faces the body 1, and the electrode head 2 moves toward the body 1 along the direction from front to back to be assembled with the body 1.

[0033] In this arrangement, the first magnetic member 11 and the second magnetic member 2111 are installed on one side of the beauty instrument 100 along the first direction. Compared with the arrangement of the first magnetic member 11 and the second magnetic member 2111 on one side of the electrode head 2 in the thickness direction, during the use of the beauty instrument 100, the first magnetic member 11 and the second magnetic member 2111 are prevented from blocking the light or energy emitted by the beauty instrument 100, thereby increasing the irradiation area of ​​the energy emitted by the beauty instrument 100, and thus improving the beauty effect of the beauty instrument 100. In addition, through the interaction between the first magnetic member 11 and the second magnetic member 2111, the electrode head 2 is installed on the body 1, and the installation operation is simple, which is conducive to the rapid installation of the electrode head 2. During the assembly process of the electrode head 2 and the body 1, the extension part 211 can be pre-assembled, thereby improving the assembly accuracy of the electrode head 2 and the body 1, and also facilitating the rapid assembly of the electrode head 2 and the body 1, thereby improving the assembly efficiency of the electrode head 2 and the body 1.

[0034] According to the beauty instrument 100 of the present invention, the electrode head 2 is installed on the body 1 through the interaction between the first magnetic member 11 and the second magnetic member 2111, and the installation operation is simple, which is conducive to the rapid installation of the electrode head 2. The first magnetic member 11 and the second magnetic member 2111 are installed on the side of the beauty instrument 100 along the first direction, thereby avoiding blocking the light or energy emitted by the beauty instrument 100, increasing the irradiation area of ​​the energy emitted by the beauty instrument 100, and thus improving the beauty effect of the beauty instrument 100. In addition, the extension part 211 can be pre-assembled, thereby improving the assembly accuracy of the electrode head 2 and the body 1, and also improving the assembly efficiency of the electrode head 2 and the body 1.

[0035] According to some embodiments of the present invention, referring to Figure 2 A mounting groove 212 is formed on one side of the connecting structure 21 away from the body 1, and the electrode head 2 further includes a main body 22, which is fitted in the mounting groove 212. Figure 2In the example, the mounting groove 212 is formed on the front side of the connecting structure 21, and the main body 22 is installed in the mounting groove 212 from the front to the rear. In this way, the mounting groove 212 has a simple structure, which is convenient for assembling the main body 22 and the connecting structure 21, thereby improving the assembly efficiency of the main body 22 and the connecting structure 21, and improving the assembly efficiency of the electrode head 2.

[0036] Further, refer to Figure 2 At least one opening 2121 is formed on the bottom wall of the installation groove 212, a first receiving groove 2112 is formed on the extension portion 211, the first receiving groove 2112 is connected to the installation groove 212 through the opening 2121, and the second magnetic attraction member 2111 is disposed in the first receiving groove 2112. Figure 2 In the example, the opening 2121 passes through the bottom wall of the mounting groove 212, and the first receiving groove 2112 is open forward. The second magnetic member 2111 is installed in the first receiving groove 2112 through the mounting groove 212 and the opening 2121 in sequence from front to back. As a result, the difficulty of installing the second magnetic member 2111 in the first receiving groove 2112 is reduced, so that the second magnetic member 2111 can be smoothly installed in the first receiving groove 2112, and the installation efficiency of the second magnetic member 2111 and the extension 211 is improved. In addition, the second magnetic member 2111 is placed in the first receiving groove 2112, that is, the extension 211 can shield the second magnetic member 2111, thereby avoiding direct contact between the first magnetic member 11 and the second magnetic member 2111, avoiding mutual wear between the first magnetic member 11 and the second magnetic member 2111 during the assembly and separation of the electrode head 2 and the body 1, and extending the service life of the first magnetic member 11 and the second magnetic member 2111. Moreover, it also avoids the second magnetic attraction component 2111 being exposed on the outside of the electrode head 2, thereby improving the aesthetics of the electrode head 2 and also improving the aesthetics of the beauty instrument 100.

[0037] According to some embodiments of the present invention, referring to Figure 2 , the cross-sectional area of ​​the first receiving groove 2112 gradually decreases along the direction from the electrode head 2 to the body 1. Figure 2 In the example, along the direction from front to back, the cross-sectional area of ​​the first receiving groove 2112 along the left-right direction gradually decreases. Therefore, when the second magnetic member 2111 is assembled into the first receiving groove 2112 along the direction from front to back, the cross-sectional area of ​​the rear end of the first receiving groove 2112 is smaller, and the side wall of the first receiving groove 2112 limits and clamps the second magnetic member 2111, thereby preventing the second magnetic member 2111 from continuing to move backward, and also improving the stability of the second magnetic member 2111, and preventing the second magnetic member 2111 from being displaced during the use of the beauty instrument 100, thereby improving the magnetic attraction effect of the first magnetic member 11 and the second magnetic member 2111, and improving the assembly stability of the electrode head 2 and the body 1.

[0038] According to some embodiments of the present invention, referring to Figure 2 , the width of the extension portion 211 gradually decreases along the direction from the electrode head 2 to the machine body 1. Figure 2 In the example, the width of the extension part 211 in the direction from front to back and in the vertical direction gradually decreases. As a result, the rear end of the extension part 211 is narrower, which facilitates the preliminary assembly of the rear end of the extension part 211 with the machine body 1, effectively ensuring that the electrode head 2 is smoothly assembled to the machine body 1 along the extension part 211, thereby improving the smoothness of assembly of the electrode head 2 and the machine body 1. In addition, the material consumption of the extension part 211 is also reduced, thereby reducing the production cost of the extension part 211 and the production cost of the electrode head 2. Moreover, the appearance of the extension part 211 is more beautiful.

[0039] According to other embodiments of the present invention, Figure 2 , along the direction of the electrode head 2 toward the machine body 1, the side surface of the extension portion 211 away from the machine body 1 is bent and extended toward the direction close to the machine body 1. For example, Figure 2 In the example, the outer side surface of the extension part 211 gradually bends toward the center of the body 1 from the front to the back. With this arrangement, the rear side of the extension part 211 is closer to the body 1, thereby improving the clamping degree of the extension part 211 to the body 1, preventing the electrode head 2 from falling off the body 1, and further improving the safety of the beauty instrument 100. In addition, the line smoothness of the side surface of the extension part 211 is improved, thereby improving the aesthetics of the extension part 211 and the visual effect of the user.

[0040] According to some further embodiments of the present invention, referring to Figure 2 , along the direction of the electrode head 2 toward the body 1, the width of the extension part 211 gradually decreases, and the side surface of the extension part 211 away from the body 1 bends and extends toward the direction close to the body 1. As a result, the rear end of the extension part 211 is narrower, which makes it easier for the rear end of the extension part 211 to be preliminarily assembled with the body 1, so that the electrode head 2 is smoothly assembled to the body 1 along the extension part 211, thereby improving the smoothness of assembly of the electrode head 2 and the body 1. In addition, the material consumption of the extension part 211 is also reduced, thereby reducing the production cost of the extension part 211 and the production cost of the electrode head 2. In addition, the rear end of the extension part 211 is closer to the body 1, thereby improving the clamping degree of the extension part 211 to the body 1, preventing the electrode head 2 from falling off from the body 1, and further improving the safety of the use of the beauty instrument 100. Moreover, the smoothness of the lines of the above-mentioned side surface of the extension part 211 is also improved, thereby improving the aesthetics of the extension part 211 and improving the visual effect of the user.

[0041] Further, refer to Figure 2At least one second receiving groove 12 is formed on the body 1, and the first magnetic attraction member 11 is arranged in the second receiving groove 12. Figure 2 In the example, the second receiving groove 12 is formed inside the body 1 and is located on one side of the body 1 along the left-right direction. As a result, the second receiving groove 12 limits the first magnetic member 11, avoids displacement of the first magnetic member 11, improves the stability of the first magnetic member 11, thereby improving the stability of the mutual magnetic attraction between the second magnetic member 2111 and the first magnetic member 11, and further improves the assembly stability of the electrode head 2 and the body 1. Moreover, it is also avoided to set the second magnetic member 2111 on the outer surface of the body 1, improves the aesthetics of the body 1, and also enables the body 1 to have a better protective effect on the second magnetic member 2111.

[0042] According to some embodiments of the present invention, referring to Figure 2 and Figure 3 At least one groove 13 is formed on the outer peripheral surface of the body 1. When the electrode head 2 is fitted on the body 1, the extension portion 211 fits in the groove 13. Figure 2 and Figure 3 In the example, the groove 13 is formed on the side of the body 1 along the left-right direction, the groove 13 is connected to the front side of the body 1, the second accommodating groove 12 is opposite to the groove 13, and the shape of the groove 13 is adapted to the shape of the extension 211. As a result, the groove 13 has a guiding effect on the extension 211, and the extension 211 can slide along the extension direction of the groove 13, so that the electrode head 2 and the body 1 can be quickly assembled. It is also easy to identify the installation position of the electrode head 2, thereby effectively improving the assembly efficiency of the beauty instrument 100. In addition, the groove 13 has a simple structure and is easy to process, thereby improving the production efficiency of the body 1. In addition, the groove 13 also has a limiting effect on the extension 211, avoiding the movement of the electrode head 2 relative to the body 1, and improving the stability of the electrode head 2. Moreover, the fitting degree between the extension 211 and the groove 13 is also improved, effectively ensuring the limiting effect of the groove 13 on the extension 211.

[0043] Further, refer to Figure 4 , along the direction from the electrode head 2 to the machine body 1, the bottom wall of the groove 13 extends obliquely toward the center of the machine body 1. For example, Figure 4In the example, the bending extension of the side surface of the extension portion 211 away from the body 1 is consistent with the direction of the inclined extension of the bottom wall of the groove 13. As a result, the adaptability of the extension portion 211 and the groove 13 is further improved, so that the extension portion 211 and the bottom wall of the groove 13 are more closely fitted, thereby preventing the electrode head 2 from shaking in the left and right directions, and further improving the stability of the electrode head 2. In addition, the side of the bottom wall of the groove 13 close to the electrode head 2 protrudes more than the side of the bottom wall of the groove 13 away from the motor head, which is conducive to the extension portion 211 clamping the body 1 and preventing the motor head from falling off the body 1.

[0044] According to some embodiments of the present invention, referring to Figure 4 , from the center of the body 1 toward the outer peripheral surface of the body 1, the side wall of the groove 13 extends obliquely toward a direction away from the center of the groove 13. For example, Figure 3 In the example, the cross-sectional area of ​​the side wall of the groove 13 gradually increases from the bottom wall of the groove 13 toward the side of the body 1. This is more conducive to the assembly of the extension 211 and the groove 13, and also reduces the difficulty of assembly. In addition, the appearance of the groove 13 is beautiful, which improves the aesthetics of the body 1.

[0045] Optionally, refer to Figure 4 The body 1 includes a main body 15 and a shell 14, the shell 14 is arranged on the outer peripheral side of the main body 15, the groove 13 forms the side of the main body 15, and the shell 14 covers the first magnetic component 11. Therefore, the shell 14 can block the first magnetic component 11 and prevent the first magnetic component 11 from falling off from the second receiving groove 12, thereby further improving the stability of the first magnetic component 11, and further improving the magnetic attraction effect of the first magnetic component 11 and the second magnetic component 2111. In addition, the shell 14 can shield the internal structure of the body 1, thereby protecting the internal structure of the body 1, extending the service life of the body 1, and improving the visual effect of the body 1. In addition, it is also easy to process the groove 13, thereby improving the production efficiency of the body 1.

[0046] According to some embodiments of the present invention, referring to Figure 4 , the body 1 is provided with a plurality of first magnetic members 11, the plurality of first magnetic members 11 are respectively located on both sides of the body 1 along the first direction (i.e., the left and right direction), the connection structure 21 is provided with extensions 211 on both sides along the first direction, and the second magnetic members 2111 of the plurality of extensions 211 are respectively matched with the plurality of first magnetic members 11. In the description of the utility model, the meaning of "plurality" is two or more. For example, in Figure 4 In the example, two first magnetic components 11 are provided, and the two first magnetic components 11 are respectively located on the left and right sides of the body 1, two extension parts 211 are provided, and the two extension parts 211 are respectively located on both sides of the connecting structure 21, and each extension part 211 is provided with a second magnetic component 2111.

[0047] In this way, the plurality of second magnetic members 2111 respectively correspond to the plurality of first magnetic members 11, and the plurality of extensions 211 can clamp the body 1 from the left and right sides, thereby further strengthening the connection strength between the electrode head 2 and the body 1, further avoiding the separation of the electrode head 2 and the body 1, and further improving the use stability of the beauty instrument 100. For example, the second receiving groove 12, the first receiving groove 2112 and the opening 2121 are respectively provided with a plurality of openings 2121, and the plurality of openings 2121 are formed on the bottom wall of the installation groove 212, and the plurality of openings 2121 are respectively connected with the corresponding first receiving groove 2112, and the plurality of first magnetic members 11 can be respectively installed in the corresponding plurality of second receiving grooves 12, and the plurality of second magnetic members 2111 can be respectively installed in the corresponding plurality of first receiving grooves 2112. It should be noted that the number and setting position of the first magnetic member 11, the second magnetic member 2111, the second receiving groove 12, the first receiving groove 2112, the opening 2121 and the extension 211 can be specifically set according to actual use to better meet the actual application. But it is not limited to this.

[0048] Optionally, refer to Figure 4 There are multiple grooves 13, and the multiple grooves 13 are respectively formed on the two side surfaces of the body 1 along the first direction (ie, the left and right direction), and the multiple grooves 13 correspond to the multiple extensions 211. For example, in Figure 4 In the example, two grooves 13 are provided, and the two grooves 13 are respectively located on the left and right sides of the body 1. In this way, the corresponding extensions 211 can be guided from the left and right sides of the body 1, thereby helping to further improve the assembly efficiency and assembly accuracy of the electrode head 2 and the body 1. It should be noted that the number and setting positions of the grooves 13 can be specifically set according to actual use to better meet practical applications. But it is not limited to this.

[0049] Other structures and operations of the beauty instrument 100 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0050] In the description of the present invention, it should be understood that the terms "center", "width", "thickness", "up", "down", "front", "back", "left", "right", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0051] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0052] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A beauty instrument, characterized in that: include: A machine body, wherein at least one first magnetic attraction member is provided on the machine body; An electrode head, the electrode head comprising a connection structure, the electrode head is detachably matched with the body through the connection structure, the connection structure has an extension portion on at least one side along the first direction, a second magnetic member is provided on the extension portion, and the polarity of the second magnetic member is opposite to that of the first magnetic member; When the electrode head is fitted on the machine body, the first magnetic attraction member and the second magnetic attraction member are opposite to each other along the first direction.

2. The beauty instrument according to claim 1, characterized in that: A mounting groove is formed on one side of the connection structure away from the body, and the electrode head further comprises: A main body is matched in the installation groove.

3. The beauty instrument according to claim 2, characterized in that: At least one opening is formed on the bottom wall of the mounting groove, a first receiving groove is formed on the extension portion, the first receiving groove is connected with the mounting groove through the opening, and the second magnetic attraction member is disposed in the first receiving groove.

4. The beauty instrument according to claim 3, characterized in that: The cross-sectional area of ​​the first accommodating groove gradually decreases along the direction from the electrode head toward the machine body.

5. The beauty instrument according to claim 1, characterized in that: The width of the extension portion gradually decreases along the direction from the electrode head toward the machine body; and / or Along the direction from the electrode head toward the machine body, the side surface of the extension portion away from the machine body is bent and extended toward the direction close to the machine body.

6. The beauty instrument according to claim 1, characterized in that: At least one second accommodating groove is formed on the body, and the first magnetic attraction member is arranged in the second accommodating groove.

7. The beauty instrument according to claim 1, characterized in that: At least one groove is formed on the outer peripheral surface of the body, and when the electrode head is fitted on the body, the extension part is fitted in the groove.

8. The beauty instrument according to claim 7, characterized in that: Along the direction from the electrode head toward the machine body, the bottom wall of the groove extends obliquely toward the center of the machine body.

9. The beauty instrument according to claim 7, characterized in that: From the center of the body toward the outer peripheral surface of the body, the side wall of the groove extends obliquely toward a direction away from the center of the groove.

10. The beauty instrument according to any one of claims 1 to 9, characterized in that: The body is provided with a plurality of the first magnetic members, which are respectively located on both sides of the body along the first direction, and the connecting structure is respectively provided with the extension parts on both sides along the first direction, and the second magnetic members of the plurality of the extension parts are respectively matched with the plurality of the first magnetic members.

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