Refrigerator sticker capable of rotating to change face

By designing a refrigerator sticker that can rotate and change face, the existing refrigerator sticker has solved the problem of single shape and insufficient fun, achieved the effect of rotating and changing face, and improved the user experience.

CN223045473UActive Publication Date: 2025-07-01CHENGDU QIANLU TECH CO LTD
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Patent Information

Application Number
CN202422393768.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2025-07-01
Estimated Expiration
2034-09-30

AI Technical Summary

Technical Problem

The existing refrigerator patches have a single shape and appearance, and are not fun and playable.

Method used

A refrigerator sticker that can be rotated and changed face is designed. The front surface of the main body is provided with a fixed body pattern, and the rear surface is arranged with a view window through. The roulette is rotatably arranged on the rear surface of the main body. A number of different face patterns are arranged in the circumferential direction on the roulette. The face pattern is switched to correspond to the view window by rotating the roulette, and an adsorption magnetic sheet is provided on the rear surface of the main body and/or the rear surface of the roulette.

Benefits of technology

The face-changing effect of the refrigerator sticker is realized, which increases the fun and playability. Users can switch face patterns by rotating the roulette, improving the user experience.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223045473U_ABST
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Abstract

The refrigerator sticker comprises a main body, a wheel disc and an adsorption magnetic sheet, body patterns are arranged on the front surface of the main body, a view window is formed in the main body from the front surface to the rear surface in a penetrating mode, a containing groove is formed in the rear surface of the main body, and the containing groove is communicated with the view window; the wheel disc is rotatably arranged in the containing groove, and a plurality of different facial makeup patterns are arranged on the face, facing the view window, of the wheel disc in the circumferential direction, so that all the facial makeup patterns are switched to correspond to the view window by rotating the wheel disc; the adsorption magnetic sheet is arranged on the rear surface of the main body and / or the rear surface of the wheel disc; compared with the prior art, different facial makeup patterns can correspond to the view window by rotating the wheel disc, the face changing effect is achieved by rotating and switching the wheel disc, and the technical problems that in the prior art, refrigerator stickers are single in modeling and appearance and insufficient in interestingness and playability are solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of fridge magnets, in particular to a fridge magnet with a rotatable face-changing function. Background Art

[0002] Traditional fridge magnets are mainly used for decorating refrigerators and also have the function of sticky notes for taking notes, such as recording changes in food in the fridge and purchase requirements. You can also write down things to be told to family members on paper and then attach it to the fridge, making it easier for family members to notice. However, in the prior art, the shapes and appearances of ordinary fridge magnets are single, and their interestingness and playability are insufficient. Content of the Utility Model

[0003] The purpose of the utility model is to provide a fridge magnet with a rotatable face-changing function, aiming to solve at least one of the technical problems existing in the prior art.

[0004] To achieve the above purpose, the technical solution of the utility model provides a fridge magnet with a rotatable face-changing function, including:

[0005] A main body, on the front surface of which a body pattern is provided, and a viewing window is provided through the main body from its front surface to the back surface;

[0006] A roulette, which is rotatably arranged on the back surface of the main body, and a plurality of different facial makeup patterns are arranged along the circumferential direction on the side of the roulette facing the viewing window, so as to switch each facial makeup pattern to correspond to the viewing window by rotating the roulette;

[0007] An adsorption magnetic sheet, which is arranged on the back surface of the main body and / or the back surface of the roulette.

[0008] Further, a receiving groove is formed on the back surface of the main body, the receiving groove is communicated with the viewing window, and the roulette is located in the receiving groove.

[0009] Further, the main body includes: a bottom plate, on which a first viewing window is formed through; the receiving groove is arranged on the back surface of the bottom plate, and the roulette is rotatably installed on the back surface of the bottom plate through a pivot, and the central axis of the pivot is perpendicular to the plate surface of the bottom plate; a decorative plate, which is stacked on the bottom plate, and a second viewing window is formed through the decorative plate, and the second viewing window is communicated with the first viewing window, so as to form the viewing window through the communication between the second viewing window and the first viewing window.

[0010] Further, the area of the front surface of the bottom plate is larger than the area of the front surface of the decorative plate, so that a part of the front surface of the bottom plate is exposed relative to the front surface of the decorative plate, and a background pattern is provided on the front surface of the bottom plate.

[0011] Furthermore, the area of ​​the second window is smaller than or equal to the area of ​​the first window, and the size of the facial makeup pattern is substantially the same as the size of the second window.

[0012] Furthermore, the bottom plate includes: a base plate, which is stacked on the rear surface of the decorative plate, and the pivot is arranged on the base plate so that the wheel disc can be rotatably installed on the base plate through the pivot; and a connecting plate, which is stacked on the rear surface of the base plate so as to extend around the wheel disc through a side edge of the connecting plate to form the accommodating groove.

[0013] Furthermore, a magnetic sheet slot is provided on the rear surface of the main body and / or the rear surface of the wheel disc, and the adsorption magnetic sheet is embedded in the magnetic sheet slot.

[0014] Furthermore, a notch is provided on one side wall of the accommodating groove, so that the accommodating groove is in a semi-enclosed structure relative to the wheel disc, so that the wheel disc can be driven to rotate through the notch.

[0015] Furthermore, the wheel disc is evenly provided with a plurality of blades around its rotation axis, and the front surface of each blade is provided with the facial makeup pattern.

[0016] Furthermore, an elastic protrusion is provided on the inner wall of the accommodating groove, and a positioning groove is provided on the side edge of each of the blades, so that the rotation of the wheel disc can be positioned by snapping the elastic protrusion into the positioning groove.

[0017] It can be seen from the above technical scheme that the rotatable face-changing refrigerator magnet of the utility model has a plurality of different facial patterns arranged circumferentially on the side of the wheel facing the viewing window. Different facial patterns can be matched with the viewing window by rotating the wheel, and the user can see the facial patterns through the viewing window. A fixed body pattern is arranged on the front surface of the main body, and the facial pattern is switched by rotating the wheel to achieve a face-changing effect; and an adsorption magnetic sheet is arranged on the rear surface of the main body and / or the rear surface of the wheel, so that the refrigerator magnet can be adsorbed to the refrigerator through the adsorption magnetic sheet, thereby solving the technical problems in the prior art that general refrigerator magnets have a single shape and appearance, and lack of fun and playability. Compared with the prior art, the user can rotate the wheel to achieve a face-changing effect, which is highly interesting, playable, and provides a good user experience.

[0018] In order to make the technical concept and other purposes, advantages, features and functions of the present invention more clearly understood, preferred embodiments will be specifically cited in the following specific implementation manner and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 is a schematic structural diagram of a face-changing refrigerator provided by an embodiment of the present application;

[0021] Figure 2 is a front view of a refrigerator magnet with a rotatable face-changing function provided by an embodiment of the present application;

[0022] Figure 3 is a rear view of a refrigerator magnet with a rotatable face-changing function provided by an embodiment of the present application;

[0023] Figure 4 is a schematic diagram of the facial makeup pattern on the roulette provided by an embodiment of the present application;

[0024] Figure 5 is a schematic diagram of the effect of a refrigerator magnet with a rotatable face-changing function provided by an embodiment of the present application.

[0025] Among them, the above-mentioned drawings include the following reference numerals:

[0026] 100, main body; 110, body pattern; 120, viewing window; 130, accommodating groove; 140, bottom plate; 143, substrate; 143a, pivot; 144, connecting plate; 144a, magnetic sheet groove; 144b, notch; 144c, elastic protrusion; 150, decorative plate;

[0027] 200, roulette; 210, facial makeup pattern; 220, positioning groove; 230, blade;

[0028] 300, adsorption magnetic sheet. Detailed implementation manners

[0029] By providing a refrigerator magnet with a rotatable face-changing function in the embodiments of the present application, the effect of rotatable face-changing can be achieved, so as to solve the problems that the shapes and appearances of general refrigerator magnets in the prior art are single, and the interest and playability are insufficient.

[0030] To enable those skilled in the art to better understand the technical solutions of the present application, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0031] Please refer to Figures 1 to 5 simultaneously. In this embodiment, a refrigerator magnet with a rotatable face-changing function is provided, which includes:

[0032] A main body 100, a roulette 200, and an adsorption magnet 300. A body pattern 110 is provided on the front surface of the main body 100. A viewing window 120 is provided through the main body 100 from its front surface to the back surface. A receiving groove 130 is formed on the back surface of the main body 100, and the receiving groove 130 communicates with the viewing window 120;

[0033] The roulette 200 is rotatably arranged in the receiving groove 130, and a plurality of different facial makeup patterns 210 are arranged along the circumferential direction on the side of the roulette 200 facing the viewing window 120, so as to switch each facial makeup pattern 210 corresponding to the viewing window 120 by rotating the roulette 200;

[0034] The adsorption magnet 300 is arranged on the back surface of the main body 100 and / or the back surface of the roulette 200.

[0035] It can be seen that for the refrigerator magnet with a rotatable face-changing function in this embodiment, a plurality of different facial makeup patterns 210 are arranged along the circumferential direction on the side of the roulette 200 facing the viewing window 120. Rotating the roulette 200 can make different facial makeup patterns 210 correspond to the viewing window 120. The user can see the facial makeup patterns 210 through the viewing window 120. A fixed body pattern 110 is provided on the front surface of the main body 100. The effect of face-changing is achieved by rotating and switching the facial makeup patterns 210; the adsorption magnet 300 is arranged on the back surface of the main body 100 and / or the back surface of the roulette 200, so as to adsorb this rotatable face-changing refrigerator magnet to the refrigerator through the adsorption magnet 300, solving the technical problems that the shapes and appearances of general refrigerator magnets in the prior art are single, and the interest and playability are insufficient. Compared with the prior art, the user can rotate the roulette 200 to achieve the face-changing effect, with strong interest and high playability.

[0036] In this embodiment, please refer to Figures 1 to 5 simultaneously. The main body 100 includes: a bottom plate 140 and a decorative plate 150. A first viewing window is formed through the bottom plate 140. The receiving groove 130 is arranged on the back surface of the bottom plate 140, and the roulette 200 is rotatably installed on the back surface of the bottom plate 140 through a pivot 143a. The central axis of the pivot 143a is perpendicular to the plate surface of the bottom plate 140; the decorative plate 150 is stacked on the bottom plate 140, and a second viewing window is formed through the decorative plate 150. The second viewing window communicates with the first viewing window to form the viewing window 120 through the communication between the second viewing window and the first viewing window.

[0037] Among them, the decorative panel 150 is stacked on the bottom plate 140, and the body pattern 110 provided on the front surface of the decorative panel 150 will not be blocked by the bottom plate 140. By penetratingly opening a first window on the bottom plate 140 and a second window on the decorative panel 150, the first window and the second window communicate to form a viewing window 120, and the user can see the facial pattern 210 on the roulette 200 through the viewing window 120; the roulette 200 is rotatably installed on the rear surface of the bottom plate 140 through a pivot 143a, and the central axis of the pivot 143a is perpendicularly arranged to the plate surface of the bottom plate 140, and the plane where the roulette 200 is located is parallel to the plate surface of the bottom plate 140. In this way, the facial pattern 210 is parallel to the plate surface of the bottom plate 140, and when the facial pattern 210 is rotated, the facial pattern 210 can better coincide with the body pattern 110, achieving a better face-changing effect.

[0038] Specifically, please refer to Figures 1 to 2 , the area of the front surface of the bottom plate 140 is larger than the area of the front surface of the decorative panel 150, so that a part of the front surface of the bottom plate 140 is exposed relative to the front surface of the decorative panel 150, and a background pattern is provided on the front surface of the bottom plate 140.

[0039] Among them, a part of the background pattern provided on the front surface of the bottom plate 140 can be exposed relative to the front surface of the decorative panel 150. When the user uses it, the background pattern can be seen from the front, making the figure more vivid; through the combination of the body pattern 110, the background pattern and the facial pattern 210 seen in sequence, the effect of making the figure more lifelike is achieved. At this time, when the roulette 200 is rotated to switch the facial pattern 210, a better face-changing effect is achieved.

[0040] Furthermore, please refer to Figures 1 to 2 , the area of the second window is less than or equal to the area of the first window, and the size of the facial pattern 210 is substantially the same as the size of the second window.

[0041] Among them, the fact that the size of the facial pattern 210 is substantially the same as the size of the second window enables the user to see the facial pattern 210 more completely through the second window when viewing from the front, and since the area of the second window is less than or equal to the area of the first window, the front surface of the bottom plate 140 will not interfere with the user's viewing of the facial pattern 210.

[0042] In this embodiment, please refer to Figures 1 to 3 , the bottom plate 140 includes a base plate 143 and a connecting plate 144. The base plate 143 is stacked on the rear surface of the decorative panel 150, and the pivot 143a is provided on the base plate 143 to rotatably install the roulette 200 on the base plate 143 through the pivot 143a; the connecting plate 144 is stacked on the rear surface of the base plate 143, and one side edge of the connecting plate 144 extends around the roulette 200 to form a receiving groove 130.

[0043] Among them, by setting a pivot 143a on the base plate 143, the wheel 200 is rotatably installed on the base plate 143 through the pivot 143a. This connection method is simple and has low production difficulty. The wheel 200 is installed in the accommodating groove 130 so that the wheel 200 will not protrude relative to the connecting plate 144 on the rear surface of the bottom plate 140. When the connecting plate 144 is adsorbed onto the refrigerator, the connecting plate 144 can directly contact and adsorb with the surface of the refrigerator to achieve a good adsorption effect.

[0044] Specifically, see Figures 1 to 2 A magnetic sheet groove 144 a is provided on the rear surface of the main body 100 and / or the rear surface of the wheel disc 200 , and the adsorption magnetic sheet 300 is embedded in the magnetic sheet groove 144 a .

[0045] Among them, by embedding the adsorption magnetic sheet 300 in the magnetic sheet groove 144a, the position of the adsorption magnetic sheet 300 can be better limited, so that the adsorption magnetic sheet 300 is not easy to fall off, thereby improving the service life of the refrigerator magnet.

[0046] In this example, see Figures 1 to 3 A notch 144 b is formed on one side wall of the receiving groove 130 , so that the receiving groove 130 is in a semi-enclosed structure relative to the wheel disc 200 , so that the wheel disc 200 can be driven to rotate through the notch 144 b.

[0047] Among them, the notch 144b can be used to better rotate the roulette wheel 200. Specifically, since the roulette wheel 200 is installed in the receiving groove 130, when the user moves the roulette wheel 200, the user needs to insert the finger into the receiving groove 130 to move the roulette wheel 200. By opening the notch 144b on a side wall of the receiving groove 130, the user can directly move the roulette wheel 200 through the notch 144b, which makes it convenient for the user to move the roulette wheel 200.

[0048] Preferably, see Figures 1 to 4 The wheel 200 is evenly provided with a plurality of blades 230 around its rotation axis, and a facial mask pattern 210 is provided on the front surface of each blade 230 .

[0049] Among them, by arranging multiple blades 230 on the wheel 200, a facial makeup pattern 210 is respectively arranged on the front surface of each blade 230, so that when the facial makeup pattern 210 is attached or replaced, the positioning effect of the facial makeup pattern 210 is achieved. Specifically, when the facial makeup pattern 210 is attached or replaced, the corresponding facial makeup pattern 210 can be directly attached to each blade 230, and the facial makeup picture can be attached to the appropriate position without considering the spacing and angles between each facial makeup. Such an arrangement reduces the difficulty of producing and replacing the facial makeup pattern 210.

[0050] Specifically, see Figure 3, elastic protrusions 144c are provided on the inner wall of the accommodation groove 130, and positioning grooves 220 are formed on the side edges of each blade 230, so as to position the rotation of the wheel disc 200 by engaging the elastic protrusions 144c in the positioning grooves 220.

[0051] Among them, when the blade 230 rotates to a suitable angle, that is, when the facial pattern 210 on the blade 230 corresponds to the viewing window 120, the elastic protrusion 144c will engage with the positioning groove 220 on one of the blades 230, thus realizing the positioning of the rotation of the wheel disc 200 and preventing the wheel disc 200 from rotating accidentally.

[0052] Furthermore, the area of the front surface of the connecting plate 144 is less than or equal to the area of the front surface of the substrate 143, so that the substrate 143 can completely cover and block the connecting plate 144.

[0053] Among them, the substrate 143 covers and blocks the connecting plate 144, so that the front surface of the connecting plate 144 will not be partially exposed relative to the front surface of the substrate 143 and thus affect the appearance.

[0054] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0055] For the refrigerator sticker with rotatable facial change of the present invention, a plurality of different facial patterns 210 are arranged circumferentially on the side of the wheel disc 200 facing the viewing window 120. By rotating the wheel disc 200, different facial patterns 210 can be made to correspond to the viewing window 120, and the user can see the facial patterns 210 through the viewing window 120. A fixed body pattern 110 is provided on the front surface of the main body 100, and the effect of facial change is achieved by rotating and switching the facial patterns 210; an adsorption magnetic sheet 300 is provided on the rear surface of the main body 100 and / or the rear surface of the wheel disc 200, so as to adsorb this rotatable facial change refrigerator sticker to the refrigerator through the adsorption magnetic sheet 300, solving the technical problems that the shapes and appearances of general refrigerator stickers in the prior art are single, and the interestingness and playability are insufficient. Compared with the prior art, the user can rotate the wheel disc 200 to achieve the facial change effect, with strong interestingness and high playability.

[0056] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or their combinations.

[0057] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0058] In the description of the present application, the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "lateral", "longitudinal", "vertical", "perpendicular", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present application.

[0059] It should be noted that, in the description of the present application, unless otherwise clearly specified and limited, the terms "set, connect, couple, install" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or a contact connection or an integral connection; for those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0060] In addition, it should be noted that, in the description of the present utility model, the use of terms such as "first", "second", etc. to limit components is only for the convenience of distinguishing the corresponding components. Without otherwise stating, the above terms have no special meanings, and thus cannot be construed as a limitation to the protection scope of the present application. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" refers to two or more.

[0061] The term "and / or" in this text is merely a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, B exists alone, and both A and B exist simultaneously. The term " / and" in this text is a description of another association object relationship, indicating that two relationships can exist. For example, A / and B can represent: A exists alone, and both A and B exist. In addition, the character " / " in this text generally indicates that the associated objects before and after are in an "or" relationship.

[0062] The above are the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications are also regarded as the protection scope of the present utility model.

Claims

1. A refrigerator magnet that can rotate and change its face, characterized in that: include: A main body (100), wherein a body pattern (110) is provided on the front surface of the main body (100), and a viewing window (120) is provided from the front surface to the rear surface of the main body (100); A wheel (200), the wheel (200) being rotatably disposed on the rear surface of the main body (100), and a plurality of different facial makeup patterns (210) being disposed along the circumferential direction on a side of the wheel (200) facing the viewing window (120), so that each facial makeup pattern (210) can be switched to correspond to the viewing window (120) by rotating the wheel (200); An adsorption magnetic sheet (300) is arranged on the rear surface of the main body (100) and / or the rear surface of the wheel disc (200).

2. A refrigerator magnet capable of rotating and changing its face according to claim 1, characterized in that: The rear surface of the main body (100) is provided with a receiving groove (130), the receiving groove (130) is communicated with the viewing window (120), and the wheel (200) is located in the receiving groove (130).

3. A refrigerator magnet capable of rotating and changing its face according to claim 2, characterized in that: The main body (100) comprises: A bottom plate (140), wherein a first viewing window is formed through the bottom plate (140), the receiving groove (130) is arranged on the rear surface of the bottom plate (140), and the wheel disc (200) is rotatably mounted on the rear surface of the bottom plate (140) via a pivot (143a), and the central axis of the pivot (143a) is arranged perpendicular to the plate surface of the bottom plate (140); A decorative plate (150), the decorative plate (150) being stacked on the base plate (140), the decorative plate (150) being provided with a second window penetrating therethrough, the second window being connected to the first window, so as to form the viewing window (120) by connecting the second window to the first window.

4. A refrigerator magnet capable of rotating and changing its face according to claim 3, characterized in that: The area of ​​the front surface of the base plate (140) is greater than the area of ​​the front surface of the decorative plate (150), so that a portion of the front surface of the base plate (140) is exposed relative to the front surface of the decorative plate (150), and the front surface of the base plate (140) is provided with a background pattern.

5. The refrigerator magnet capable of rotating and changing its face according to claim 3, characterized in that: The area of ​​the second window is smaller than or equal to the area of ​​the first window, and the size of the facial pattern (210) is substantially the same as the size of the second window.

6. A refrigerator magnet capable of rotating and changing its face according to claim 3 or 4, characterized in that: The bottom plate (140) comprises: A base plate (143), the base plate (143) being stacked on the rear surface of the decorative plate (150), and the pivot (143a) being arranged on the base plate (143), so that the wheel disc (200) can be rotatably mounted on the base plate (143) through the pivot (143a); A connecting plate (144) is stacked on the rear surface of the base plate (143) so as to extend around the wheel disc (200) through a side edge of the connecting plate (144) to form the receiving groove (130).

7. A refrigerator magnet capable of rotating and changing its face according to any one of claims 1 to 4, characterized in that: A magnetic sheet slot (144a) is provided on the rear surface of the main body (100) and / or the rear surface of the wheel disc (200), and the adsorption magnetic sheet (300) is embedded in the magnetic sheet slot (144a).

8. A refrigerator magnet capable of rotating and changing its face according to any one of claims 2 to 4, characterized in that: A notch (144b) is provided on one side wall of the accommodating groove (130), so that the accommodating groove (130) is in a semi-enclosed structure relative to the wheel disc (200), so that the wheel disc (200) can be driven to rotate through the notch (144b).

9. The refrigerator magnet capable of rotating and changing its face according to claim 2, characterized in that: The wheel disc (200) is evenly provided with a plurality of blades (230) around its rotation axis, and the front surface of each blade (230) is provided with the facial pattern (210).

10. The refrigerator magnet capable of rotating and changing its face according to claim 9, characterized in that: The inner wall of the accommodating groove (130) is provided with an elastic protrusion (144c), and the side edge of each blade (230) is provided with a positioning groove (220) so that the rotation of the wheel disc (200) can be positioned by snapping the elastic protrusion (144c) into the positioning groove (220).