Expandable mechanism

Abstract

This application provides an expandable mechanism, including a top component, a bottom component, and a folding assembly. The folding assembly includes two sets of deformable connecting parts. Each set of deformable connecting parts is connected to the top component and the bottom component respectively. The deformable connecting parts have an extended state and a folded state, so that the expandable mechanism has at least an extended state and a folded state. The deformable connecting parts include a first folding arm and a second folding arm. The first end of the first folding arm is rotatably connected to the bottom component to form a first connection point. The first end of the second folding arm is rotatably connected to a position on the upper part of the first folding arm near the second end of the first folding arm, or the second end of the first folding arm is rotatably connected to a position on the upper part of the second folding arm near the first end of the second folding arm, to form a second connection point. The second end of the second folding arm is rotatably connected to the top component to form a third connection point. During the switching between its extended state and its folded state, the relative running direction of the top component and the bottom component remains parallel or approximately parallel to the arrangement direction.

Description

Technical Field

[0001] This application relates to the field of electronic device accessories technology, and in particular to a scalable mechanism. Background Technology

[0002] With the development of science and technology, mobile phones and other electronic devices have become one of the most common smart devices in people's daily lives. In order to improve the user experience of mobile phones and other electronic devices, users usually use expandable mechanisms with support functions as stands for these devices.

[0003] In existing technologies, such scalable mechanisms exhibit poor stability during state transitions, resulting in a poor user experience. Utility Model Content

[0004] This application provides an scalable mechanism that can reduce the space occupied by the scalable mechanism during state transitions and improve the user experience.

[0005] To address the aforementioned technical problems, this application provides an expandable mechanism comprising a top component, a bottom component, and a folding assembly. The folding assembly includes two sets of deformable connecting portions. Each set of deformable connecting portions is connected to both the top and bottom components. The deformable connecting portions have an extended state and a folded state, and can change between these states, causing the top and bottom components of the expandable mechanism to move away from or closer to each other, ensuring that the expandable mechanism has at least an extended state and a folded state. The deformable connecting portions include a first folding arm and a second folding arm. The first end of the first folding arm is rotatably connected to the bottom component, forming a second folding arm. A connection point; the first end of the second folding arm is rotatably connected to the upper part of the first folding arm near the second end of the first folding arm, or the second end of the first folding arm is rotatably connected to the upper part of the second folding arm near the first end of the second folding arm, forming a second connection point; the second end of the second folding arm is rotatably connected to the top component, forming a third connection point; wherein, during the switching process between its extended state and its folded state, the relative running direction of the top component and the bottom component remains parallel or approximately parallel to the arrangement direction; the arrangement direction is the stacking direction of the top component and the bottom component when the expandable mechanism is in the folded state.

[0006] The beneficial effects of this application are: the expandable mechanism of this application can switch between the extended state and the folded state through the folding component, and can realize the relative extension and contraction between the top component and the bottom component; furthermore, during the switching process between the extended state and the folded state of the expandable mechanism, the relative running direction of the top component and the bottom component remains parallel or approximately parallel to the arrangement direction, which can improve the stability of the expandable mechanism during the state switching process and enhance the user experience. Attached Figure Description

[0007] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0008] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the expandable mechanism of this application (in the extended state);

[0009] Figure 2 yes Figure 1 Another side view of the scalable mechanism in the embodiment;

[0010] Figure 3 yes Figure 1 Another side view of the scalable mechanism in the embodiment;

[0011] Figure 4 yes Figure 1 The embodiment provides a schematic diagram of the scalable mechanism in its folded state.

[0012] Figure 5 yes Figure 4 Side view of the embodiment;

[0013] Figure 6 yes Figure 1 The embodiment provides a schematic diagram of the scalable mechanism in a semi-folded state;

[0014] Figure 7 yes Figure 6 Side view of the embodiment;

[0015] Figure 8 This is a three-dimensional structural schematic diagram of another embodiment of the expandable mechanism of this application (in the extended state);

[0016] Figure 9 yes Figure 8 Another side view of the scalable mechanism in the embodiment;

[0017] Figure 10 yes Figure 8 The embodiment provides a schematic diagram of the scalable mechanism in a semi-folded state;

[0018] Figure 11 This is a three-dimensional structural schematic diagram of yet another embodiment of the expandable mechanism of this application (in the extended state);

[0019] Figure 12 This is a side view schematic diagram of another embodiment of the expandable mechanism of this application (in the extended state);

[0020] Figure 13 yes Figure 11 A side view schematic diagram of the scalable mechanism in the embodiment;

[0021] Figure 14 yes Figure 11 The embodiment provides a schematic diagram of the scalable mechanism in a semi-folded state;

[0022] Figure 15 yes Figure 11 The embodiment provides a schematic diagram of the scalable mechanism in its folded state. Detailed Implementation

[0023] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0024] The terms “first,” “second,” etc., used in this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover non-exclusive inclusion. It should be understood that, when used in this specification and the appended claims, the term “comprising” indicates the presence of the described feature, integral, step, operation, element, and / or component, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof. It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the application. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise. It should also be further understood that the term “and / or,” as used in this specification and the appended claims, refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations.

[0025] It should be noted that when one element is fixed to another element, this includes fixing the element directly to the other element or fixing the element to the other element through at least one other intermediate element. When one element is connected to another element, this includes connecting the element directly to the other element or connecting the element to the other element through at least one other intermediate element.

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0027] With the development of science and technology, mobile phones and other electronic devices have become one of the most common smart devices in people's daily lives. In order to improve the user experience of mobile phones and other electronic devices, users usually use expandable mechanisms with support functions as stands for these devices.

[0028] The scalable mechanism provided in this application is applicable to a variety of electronic devices, such as mobile phones, tablets, portable media players, cameras, and other portable electronic devices, and can provide support for electronic devices.

[0029] In existing technologies, such scalable mechanisms typically require users to manually provide the force needed for the mechanism to close, which is inconvenient and results in a poor user experience.

[0030] It should be noted that the scalable mechanism provided in this application can be used in electronic devices to support them. The following explanation uses a mobile phone as an example.

[0031] Example Group 1

[0032] This application proposes a scalable mechanism, such as Figures 1 to 7 As shown. The expandable mechanism includes a top component 11, a bottom component 12, a folding assembly 13, and a magnetic assembly 15. The folding assembly 13 includes a deformable connecting portion 14. The deformable connecting portion 14 is connected to both the top component 11 and the bottom component 12. The deformable connecting portion 14 has at least an extended state and a folded state, and can change between the extended state and the folded state, so that the top component 11 and the bottom component 12 of the expandable mechanism are either far apart or close together, so that the expandable mechanism has at least an extended state and a folded state. In some embodiments, the magnetic assembly 15 is disposed between the top component 11 and the bottom component 12. In other embodiments, the magnetic assembly 15 is disposed between the top component 11 and the bottom component 12.

[0033] In some embodiments, the magnetic component 15 is used to provide an attractive bias force during the transition of the deformable connection 14 from its extended state to its folded state, causing the deformable connection 14 to tend to form its folded state.

[0034] The user can control the expandable mechanism to enter the folded state through the folding component 13; specifically, the folding component 13 can achieve the above effect through the deformation of the deformation connection part 14; it should be noted that the deformation method of the deformation connection part 14 is not limited, such as folding, sleeve expansion and contraction, elastic deformation, etc.

[0035] During the process of the deformable connecting part 14 switching from its extended state to its folded state, the magnetic component 15 directly or indirectly provides an attractive bias force to the top part 11 and the bottom part 12.

[0036] In the above manner, the expandable mechanism can switch between the extended state and the folded state through the folding component 13, and can realize the relative extension and retraction between the top component 11 and the bottom component 12. Furthermore, a magnetic component 15 is provided between the top component 11 and the bottom component 12, which can provide an attraction bias force for the top component 11 and the bottom component 12 through the magnetic force of the magnetic component 15. This can save the user the force required to control the expandable mechanism to enter the folded state, improve the convenience of user operation, and make the state switching faster, thereby allowing the user to experience a better feel.

[0037] In some embodiments, when at least part of the deformable connector 14 is in an extended state, on the one hand, the user can extend the top member 11 and the bottom member 12 through the extended deformable connector 14 to achieve the support function of the expandable mechanism for the electronic device. On the other hand, the extended deformable connector 14 can form a receiving gap between the top member 11 and the bottom member 12, which can be used to accommodate the fingers of the hand holding the electronic device, further improving the convenience of the user in using the electronic device.

[0038] Wherein, the first direction y is defined as the arrangement direction of the top component 11 and the bottom component 12 when the expandable mechanism is in its extended state and folded state, and the second direction x is defined as the direction perpendicular to the arrangement direction.

[0039] Among them, such as Figure 1 As shown, the folding assembly 13 can support the top component 11 and the bottom component 12 to be spaced apart along the first direction y in the extended state. The contraction and extension movements of the deformation connection 14 can drive the top component 11 and the bottom component 12 to move relative to each other in the first direction y, thereby enabling the top component 11 and the bottom component 12 to move closer or further apart.

[0040] For example, when the expandable mechanism is applied to a mobile phone, the top component 11 is fixed to the back of the phone. This fixing can be done magnetically or through a structural connection. The deformable connecting part 14, in its extended state, can support the top component 11 and the bottom component 12, which are spaced apart along the first direction y. The bottom component 12 abuts against a supporting surface (e.g., a desktop). This allows the expandable mechanism to support the phone on the supporting surface, thus providing support for the phone. It should be noted that the bottom component 12 can also be fixed to the back of the phone; this application uses the fixing of the top component 11 to the back of the phone as an example for illustration.

[0041] The extended state of the deformable connecting part 14 refers to its fully extended state, and the folded state refers to its fully folded state; the fully extended state refers to the state where the distance between the top part 11 and the bottom part 12 is the largest, such as... Figures 1 to 3 As shown; the fully folded state refers to the state where the distance between the top component 11 and the bottom component 12 is minimal, such as... Figure 4 and Figure 5 As shown; the deformable connection 14 may also include one or more incompletely extended states. In an optional embodiment, the support angle and / or support height of the mobile phone can be adjusted by controlling the deformable connection 14 to be in different incompletely extended states, which can improve the diversity of application scenarios of the scalable mechanism.

[0042] It should be noted that in this application, the deformable connecting portion 14 can drive the expandable mechanism to switch states. For example, when the deformable connecting portion 14 changes from an extended state to a folded state, the expandable mechanism changes from an extended state to a folded state, and vice versa. When the folding assembly 13 includes both an extended state and a folded state, the state switching of the deformable connecting portion 14 can drive the folding assembly 13 to switch states, thereby driving the expandable mechanism to switch states. For example, when the deformable connecting portion 14 changes from an extended state to a folded state, the folding assembly 13 changes from an extended state to a folded state, and the expandable mechanism changes from an extended state to a folded state, and vice versa.

[0043] The deformable connection part 14 may include folding parts, elastic parts, etc., which can drive the expandable mechanism to switch between extended and folded states through deformation (size change or shape change, etc.). Specifically, it can be achieved through various means such as the extension and folding of the folding part, the elastic deformation of the elastic component, and the relative movement of multiple sets of sleeves, without being limited to any specific method.

[0044] The telescopic mechanism is parallel to the first direction y, which allows for more direct and efficient adjustment of the distance between the top component 11 and the bottom component 12. It also enables the telescopic mechanism to switch between its extended and folded states with a shorter movement path.

[0045] In some embodiments, such as Figures 1 to 3 , Figure 6 and Figure 7 As shown, the folding assembly 13 includes two sets of deformable connecting parts 14; each set of deformable connecting parts 14 is connected to the top component 11 and the bottom component 12 respectively. It is understood that in other specific embodiments of this application, the number of deformable connecting parts 14 is not limited, and there may be one or more.

[0046] The folding assembly 13 includes two sets of deformable connecting parts 14, which can improve the structural stability of the expandable mechanism.

[0047] The two sets of deformable connecting parts 14 are spaced apart along the vertical direction (i.e., the second direction x) of the arrangement direction (i.e., the first direction y), which can improve the smoothness of the movement when the deformable connecting parts 14 drive the top part 11 and the bottom part 12 to move relative to each other, and further improve the structural stability of the expandable mechanism.

[0048] Among them, see Figure 3 The magnetic component 15 is disposed between the top component 11 and the bottom component 12. It can provide an attraction bias force for the top component 11 and the bottom component 12 through magnetic force, which can save the user the force and operation path required to control the expandable mechanism to enter the folded state, and improve the convenience of user operation.

[0049] In some embodiments, the magnetic component 15 may be, but is not limited to, an electromagnet, a permanent magnet, etc., and the number of magnetic components 15 is not limited. The manner in which the magnetic component 15 provides the attraction bias force to the top component 11 and the bottom component 12 is not limited.

[0050] For example, two mutually attracting permanent magnets are respectively disposed on the top component 11 and the bottom component 12. During the process of the deformable connecting part 14 switching from its extended state to its folded state, the top component 11 and the bottom component 12 move closer to each other. When the distance between the permanent magnets on the top component 11 and the bottom component 12 reaches a threshold, a magnetic attraction force is formed between them. This magnetic attraction force can provide a bias force for the top component 11 and the bottom component 12 to move closer to each other, saving the user the effort required to control the expandable mechanism to enter its folded state. When the magnetic attraction force is large enough, it can cause the top component 11 and the bottom component 12 to automatically engage, saving the user the operation path required to control the expandable mechanism to enter its folded state.

[0051] For example, when the top component 11 includes a magnetizable material, a permanent magnet is placed on the bottom component 12. During the process of the deformable connection 14 switching from its extended state to its folded state, when the distance between the permanent magnet and the top component 11 reaches a threshold, the permanent magnet can magnetize the corresponding area of ​​the top component 11, forming a magnetic attraction between them. This magnetic attraction can provide a bias force for the top component 11 and the bottom component 12 to approach each other. This magnetic attraction can save the user the force required to control the expandable mechanism to enter its folded state. When the magnetic attraction is large enough, when the distance between the permanent magnet and the top component 11 reaches the threshold, this magnetic attraction can cause the top component 11 and the bottom component 12 to automatically attract each other, saving the user the operation path required to control the expandable mechanism to enter its folded state.

[0052] For example, the magnetic component 15 can indirectly provide an attraction bias force for the top component 11 and the bottom component 12 when the expandable mechanism is folded by providing a bias force for the deformable connection 14 to enter the folded state. In some embodiments, such as Figure 3 As shown, the magnetic assembly 15 may include multiple magnetic elements. The deformable connection portion 14 includes a first folding arm 16 and a second folding arm 17 that are rotatably configured. The first end 161 of the first folding arm 16 is rotatably configured with the bottom component 12. The position of the first folding arm 16 near its second end 162 is rotatably configured with the first end 171 of the second folding arm 17. The second end 172 of the second folding arm 17 is rotatably configured with the top component 11. The magnetic assembly 15 includes a third magnetic element 151 disposed in the second folding arm 17 (for example, it may be disposed inside the second folding arm 17), and a first magnetic element 152 disposed in the first folding arm 16 and magnetically attracted to the third magnetic element 151 (for example, it may be disposed inside the first folding arm 16). During the process of the deformable connecting part 14 switching from the extended state to the folded state, the second folding arm 17 rotates around the rotational connection position between itself and the first folding arm 16, causing the third magnetic element 151 of the second folding arm 17 to gradually approach the first magnetic element 152. As the deformable connecting part 14 contracts, when the distance between the third magnetic element 151 and the first magnetic element 152 decreases to a threshold, the attraction between the third magnetic element 151 and the first magnetic element 152 can drive the first folding arm 16 and the second folding arm 17 to achieve automatic attraction and folding, thereby providing attraction bias force for the top part 11 and the bottom part 12, enabling the expandable mechanism to achieve semi-automatic retraction to a certain extent, saving the user's operation path and effort, and enabling the expandable mechanism to remain more stably in the folded state after folding.

[0053] In one application scenario, the third magnetic component 151 can be used as the second folding arm to simplify the manufacturing process and reduce the number of parts. In another application scenario, the first magnetic component 152 can be used as the first folding arm to simplify the manufacturing process and reduce the number of parts.

[0054] In the above manner, the expandable mechanism can switch between an extended state and a folded state through two sets of deformable connecting parts 14, which can improve the stability of the expandable mechanism when switching states; the arrangement of two sets of deformable connecting parts 14 can improve the stability of the expandable mechanism in its extended state; furthermore, the magnetic component 15 is arranged between the top part 11 and the bottom part 12, which can provide an attraction bias force for the top part 11 and the bottom part 12 through magnetic force, which can save the user the effort required to control the expandable mechanism to enter its folded state, improve the convenience of user operation, and the magnetic attraction can improve the stability of the expandable mechanism in its folded state.

[0055] In some embodiments, the magnetic component 15 provides a separation bias force during the transition of the deformable connector 14 from its folded state to its extended state, causing the deformable connector 14 to tend towards its extended state. In this way, the force and operating path required for the user to control the expandable mechanism into its extended state are reduced, improving the ease of user operation.

[0056] For example, the magnetic component 15 indirectly provides a separation bias force between the top component 11 and the bottom component 12 when the expandable mechanism is extended by providing a bias force for the folding component 13 to enter the extended state. In some embodiments, such as Figure 3 As shown, the magnetic component 15 may include multiple magnetic elements. The folding component 13 includes a deformation connection portion 14, which includes a first folding arm 16 and a second folding arm 17 that are rotatably configured. The first end 161 of the first folding arm 16 is rotatably configured with the bottom component 12. A position on the first folding arm 16 near its second end 162 is rotatably configured with the first end 171 of the second folding arm 17. The second end 172 of the second folding arm 17 is rotatably configured with the top component 11. The magnetic component 15 includes a third magnetic element 151 disposed in the second folding arm 17 (for example, it may be disposed inside the second folding arm 17), and a second magnetic element 154 disposed in the first folding arm 16 and magnetically attracted to the third magnetic element 151 (for example, it may be disposed inside the first folding arm 16). During the process of the deformable connecting part 14 switching from the folded state to the extended state, the second folding arm 17 rotates around the rotational connection position between itself and the first folding arm 16. It can be understood that the rotation direction of the second folding arm 17 during this process is opposite to the rotation direction of the second folding arm 17 during the process from the extended state to the folded state. This process causes the third magnetic element 151 of the second folding arm 17 to gradually approach the second magnetic element 154. As the deformable connecting part 14 extends, when the distance between the third magnetic element 151 and the second magnetic element 154 decreases to a threshold, the attraction between the third magnetic element 151 and the second magnetic element 154 can drive the first folding arm 16 and the second folding arm 17 to automatically engage and extend (e.g., ...). Figures 1 to 3As shown), this provides a separation bias force for the top component 11 and the bottom component 12, enabling the expandable mechanism to achieve semi-automatic extension to a certain extent, saving the user's operation path and effort, and allowing the expandable mechanism to remain more stably in the extended state after folding.

[0057] In some embodiments, the magnetic component 15 may include a first set of magnetic components and a second set of magnetic components. The first set of magnetic components includes the first magnetic element 152 and the third magnetic element 151, used to cause the expandable mechanism to tend towards the folded state and to lock the expandable mechanism in the folded state by magnetic attraction. The second set of magnetic components includes the second magnetic element 154 and the third magnetic element 151, used to cause the expandable mechanism to tend towards the extended state and to lock the expandable mechanism in the extended state by magnetic attraction. Furthermore, the position of the third magnetic element 151 can be controlled by controlling the shape of the expandable mechanism, such as the spacing between the top component 11 and the bottom component 12, so that the third magnetic element 151 is close to the first magnetic element 152 or close to the second magnetic element 154. For example, when the top component 11 and the bottom component 12 are close together, the position of the third magnetic element 151 can be controlled by controlling the shape of the expandable mechanism, such as the spacing between the top component 11 and the bottom component 12, so that the third magnetic element 151 is close to the first magnetic element 152 or close to the second magnetic element 154. When the distance between the bottom components 12 is less than a first threshold, the third magnetic component 151 moves closer to the first magnetic component 152, making the magnetic force between the third magnetic component 151 and the first magnetic component 152 greater than the magnetic force between the third magnetic component 151 and the second magnetic component 154. At this time, the third magnetic component 151 tends to attract the first magnetic component 152, thus causing the expansion mechanism to tend to form the folded state. When the distance between the top component 11 and the bottom component 12 is greater than the first threshold, the third magnetic component 151 moves closer to the second magnetic component 154, making the magnetic force between the third magnetic component 151 and the second magnetic component 154 greater than the magnetic force between the third magnetic component 151 and the first magnetic component 152. At this time, the third magnetic component 151 tends to attract the second magnetic component 154, thus causing the expandable mechanism to tend to form the extended state. Once the magnetic components are attracted, the state of the expandable mechanism is magnetically locked, and the state of the expandable mechanism can only be changed by separating the attracted magnetic components with external force.

[0058] In some optional embodiments, the deformable connecting portion 14 further includes an extension arm 18, which is disposed on the first folding arm 16 near the second end 162 of the first folding arm 16 and is parallel to the first folding arm 16. In the extended state, the rotation point between the second folding arm 17 and the first folding arm 16 is located between the first end 181 of the extension arm 18 near the top member 11 and the first end 161 of the first folding arm 16. The first end 161 of the first folding arm 16 is rotatably disposed with respect to the bottom member 12, and the first end 161 of the first folding arm 16 near the bottom member 12 is located between the second end 181 of the extension arm 17 and the first end 161 of the first folding arm 16 is rotatably disposed with respect to the bottom member 12. The position of the second end 162 is rotatably configured with respect to the first end 171 of the second folding arm 17, and the second end 172 of the second folding arm 17 is rotatably configured with respect to the top component 11; the magnetic component 15 includes a third magnetic element 151 disposed on the second folding arm 17, a first magnetic element 152 disposed on the first folding arm 16, and a second magnetic element 154 disposed on the extension arm 18 (for example, it can be disposed inside the extension arm 18); the third magnetic element 151 is magnetically attracted to the first magnetic element 152, and the third magnetic element 151 is magnetically attracted to the second magnetic element 154. During the process of the deformable connecting part 14 switching from the folded state to the extended state, the extension arm 18 and the second folded arm 17 move closer to each other, so the third magnetic element 151 and the second magnetic element 154 move closer to each other. When the distance between the third magnetic element 151 and the second magnetic element 154 reaches the threshold, the attraction between the third magnetic element 151 and the second magnetic element 154 can drive the extension arm 18 and the second folded arm 17 to automatically engage, thereby enabling the second folded arm 17 and the first folded arm 16 to extend, so that the deformable connecting part 14 enters the extended state. This allows the expandable mechanism to achieve semi-automatic extension to a certain extent, saving the user's operation path and effort, and enabling the expandable mechanism to remain more stably in the extended state after extension.

[0059] In the above manner, the expandable mechanism can switch between the extended state and the folded state through the folding component 13. The magnetic component 15 is disposed between the top component 11 and the bottom component 12. During the process of entering the folded state, it can provide an attraction bias force to the top component 11 and the bottom component 12 through magnetic force, and during the process of entering the extended state, it can provide a separation bias force to the top component 11 and the bottom component 12 through magnetic force. This can save the user the force required to control the switching state of the expandable mechanism and improve the convenience of user operation.

[0060] In some embodiments, the rotational connection can be a hinge connection, a connection through a flexible connecting part, or other known types of rotational connection in the prior art. The change of the connection method does not affect the function of the above structure, and the present invention will not exhaustively list them.

[0061] In one application scenario, the two sets of deformable connecting parts 14 can extend and fold simultaneously to achieve a smooth transition between the extended and folded states of the expandable mechanism. For example, when the expandable mechanism needs to switch from a folded state to an extended state, the two sets of deformable connecting parts 14 can simultaneously switch from a folded state to an extended state, thereby causing the top component 11 and the bottom component 12 to move away from each other along the first direction y, thus achieving the extension of the expandable mechanism. Alternatively, the top component 11 and the bottom component 12 can move away from each other, thereby causing the deformable connecting parts 14 to deform. Conversely, when the expandable mechanism needs to switch from an extended state to a folded state, the two sets of deformable connecting parts 14 can simultaneously switch from an extended state to a folded state, thereby causing the top component 11 and the bottom component 12 to move closer to each other along the first direction y, thus achieving the folding of the expandable mechanism, which can also be understood as contraction. Alternatively, the top component 11 and the bottom component 12 can move closer to each other, thereby causing the deformable connecting parts 14 to deform.

[0062] In some embodiments, see Figure 3 , Figure 6 The deformable connecting part 14 includes a first folding arm 16 and a second folding arm 17. The first end 161 of the first folding arm 16 is rotatably connected to the bottom part 12; the first end 171 of the second folding arm 17 is rotatably connected to the second end 162 of the first folding arm 16, and the second end 172 of the second folding arm 17 is rotatably connected to the top part 11.

[0063] The structure described above in this embodiment can form a rotatable first connection point 19 between the first end 161 of the first folding arm 16 and the bottom member 12, a rotatable second connection point 20 between the first end 171 of the second folding arm 17 and a position on the first folding arm 16 near its second end 162, and a rotatable third connection point 21 between the second end 172 of the second folding arm 17 and the top member 11. This can improve the flexibility of the deformable connection part 14 in rotating and folding relative to the bottom member 12 and the top member 11, thereby improving the reliability and smoothness of switching between the extended state and the folded state of the expandable mechanism.

[0064] In some embodiments, see Figure 3 , Figure 6The rotational connection position (i.e., the second connection point 20) between the second folding arm 17 and the first folding arm 16 divides the first folding arm 16 into a first part 163 and a second part 164. The first part 163 is positioned closer to the bottom component 12 than the second part 164. When the deformable connecting part 14 is in its extended state, the second part 164 of the first folding arm 16 abuts against the second folding arm 17. In this state, the first folding arm 16 and the second folding arm 17 are parallel or approximately parallel. When the deformable connecting part 14 is in its folded state, the first part 163 of the first folding arm 16 abuts against the second folding arm 17. In this state, the first folding arm 16 and the second folding arm 17 are parallel or approximately parallel.

[0065] In the extended state of the deformable connecting part 14, along the arrangement direction, the second end 162 of the first folding arm 16 is located between the first end 161 of the first folding arm 16 and the second end 172 of the second folding arm 17, and the first folding arm 16 and the second folding arm 17 are arranged in parallel; in the folded state of the deformable connecting part 14, the first end 161 of the first folding arm 16 and the second end 172 of the second folding arm 17 abut against each other.

[0066] It should be noted that the first end 161 of the first folding arm 16 refers to the arm segment that is rotatably connected to the bottom component 12; the arm segment of the first folding arm 16 that is rotatably connected to the second folding arm 17 is close to its second end 162; the first end 171 of the second folding arm 17 refers to the arm segment that is rotatably connected to the first folding arm 16; and the second end 172 of the second folding arm 17 refers to the arm segment that is rotatably connected to the top component 11.

[0067] In the extended state, the first folding arm 16 and the second folding arm 17 are parallel along the first direction y, and the first folding arm 16 and the second folding arm 17 are in the unfolded state, that is, the first folding arm 16 and the second folding arm 17 are arranged along the first direction y. The second connection point 20 of the first folding arm 16 and the second folding arm 17 is located between the first end 161 of the first folding arm 16 and the second end 172 of the second folding arm 17, that is, the second connection point 20 of the first folding arm 16 and the second folding arm 17 is located between the top component 11 and the bottom component 12.

[0068] Specifically, the first end 161 of the first folding arm 16 and the second end 172 of the second folding arm 17 approach each other, causing the deformable connecting portion 14 to retract from its extended state. When the first folding arm 16 and the second folding arm 17 are folded, the first part 163 of the first folding arm 16 abuts against the second folding arm 17, and the deformable connecting portion 14 is in a folded state. Therefore, when the first folding arm 16 and the second folding arm 17 extend, they can push the bottom component 12 and the top component 11 to separate from each other, realizing the extension of the expandable mechanism; when the first folding arm 16 and the second folding arm 17 fold, they can drive the bottom component 12 and the top component 11 to approach each other, realizing the retraction of the expandable mechanism; conversely, the separation of the bottom component 12 and the top component 11 can also drive the first folding arm 16 and the second folding arm 17 to extend, and the approach of the bottom component 12 and the top component 11 can also drive the first folding arm 16 and the second folding arm 17 to fold. In other words, the present invention does not limit the position of the force applied to cause deformation of the expandable mechanism.

[0069] Because the rotational connection position between the second folding arm 17 and the first folding arm 16 divides the first folding arm 16 into a first part 163 and a second part 164, that is, the rotational connection position between the first end 171 of the second folding arm 17 and the first folding arm 16 is located on the arm body of the first folding arm 16 (near the second end 162) rather than the second end 162, the first folding arm 16 can play a certain limiting and hindering role in the rotation of the second folding arm 17 during the state switching process, so that the first folding arm 16 and the second folding arm 17 can rotate in a single direction (folding inward or outward), reducing the situation where the top component 11 and the bottom component 12 wobble relative to each other due to excessive rotation of the first folding arm 16 and the second folding arm 17 during the state switching process. For example, when entering the extended state from the folded state, this setting can prevent the first folding arm 16 and the second folding arm 17 from re-entering the folded state due to excessive rotation.

[0070] In some embodiments, in the extended state of the expandable mechanism, the first folding arm 16 and the second folding arm 17 may not be arranged in parallel along the first direction y, and no specific limitation is made.

[0071] In some embodiments, see Figure 3 , Figure 6Both the first folding arm 16 and the second folding arm 17 are sheet-like structures. The rotational connection position between the second folding arm 17 and the first folding arm 16 divides the outer side of the first folding arm 16 into a first part and a second part. The first part of the outer side is the outer side of the first part 163, and the second part of the outer side is the outer side of the second part 164. The first part of the outer side is positioned closer to the bottom component 12 than the second part of the outer side. When the deformable connecting part 14 is in its extended state, the second part of the outer side of the first folding arm 16 abuts against the inner side of the second folding arm 17. In this state, the first folding arm 16 and the second folding arm 17 are parallel or approximately parallel. When the deformable connecting part 14 is in its folded state, the first part of the outer side of the first folding arm 16 fits against the outer side of the second folding arm 17. In this state, the first folding arm 16 and the second folding arm 17 are parallel or approximately parallel.

[0072] It should be noted that, in the extended state, the two sets of deformable connecting portions 14 are arranged at intervals along the second direction x. Therefore, the two first folding arms 16 are arranged at intervals along the second direction x, and the two second folding arms 17 are arranged at intervals along the second direction x. Defined, in the extended state, the side of a first folding arm 16 closer to the other first folding arm 16 is the inner side of that first folding arm 16, and the side of a first folding arm 16 away from the other first folding arm 16 is the outer side of that first folding arm 16. Defined, in the extended state, the side of a second folding arm 17 closer to the other second folding arm 17 is the inner side of that second folding arm 17, and the side of a second folding arm 17 away from the other second folding arm 17 is the outer side of that second folding arm 17.

[0073] Both the first folding arm 16 and the second folding arm 17 are sheet-like structures, which can improve the connection stability when they abut against each other.

[0074] In some embodiments, the first folding arm 16 and the second folding arm 17 may also be rod-shaped structures, or a combination of rod-shaped structures and sheet-shaped structures; wherein, for example, when the first folding arm 16 is a rod-shaped structure, its inner line or inner side abuts against the bottom member 12, and its outer line or outer side abuts against the outer side of the second folding arm 17.

[0075] In some embodiments, the method of locking the relative positions of the first folding arm 16 and the second folding arm 17 in the extended state is not limited; for example, a dedicated locking mechanism may be provided.

[0076] In some embodiments, in the folded state, the first end 161 of the first folding arm 16 and the second end 172 of the second folding arm 17 overlap and abut against each other along the first direction y.

[0077] In some embodiments, in the folded state, the first end 161 of the first folding arm 16 and the second end 172 of the second folding arm 17 may also be staggered and spaced apart, which can reduce the size of the expandable mechanism when it is in the folded state and achieve miniaturization.

[0078] In some embodiments, the two sets of deformable connecting portions 14 are spaced apart and symmetrically arranged along the vertical direction of the first direction y.

[0079] In one application scenario, the projections of the top component 11 and the bottom component 12 on the first direction y completely overlap, and the two sets of deformable connecting parts 14 are symmetrically arranged along the central axis of the top component 11 or the bottom component 12.

[0080] In this way, the uniformity of the force distribution on the top component 11 and bottom component 12 when the deformable connection 14 is extended can be improved, and the stability of the expandable mechanism during the extension and contraction process can be improved; and the support stability of the folding assembly 13 on the top component 11 and bottom component 12 in the extended state can be improved.

[0081] In some embodiments, in the folded state, the outer side of the first end 161 of the first folding arm 16 abuts against the outer side of the second end 172 of the second folding arm 17.

[0082] Specifically, in the extended state, the two sets of deformable connecting portions 14 are arranged at intervals along the second direction x, thus the two first folding arms 16 are arranged at intervals along the second direction x, and the two second folding arms 17 are arranged at intervals along the second direction x. The side of a first folding arm 16 closest to the other first folding arm 16 in the extended state is defined as the inner side of that first folding arm 16, and the side of a first folding arm 16 away from the other first folding arm 16 in the extended state is defined as the outer side of that first folding arm 16. Similarly, the side of a second folding arm 17 closest to the other second folding arm 17 in the extended state is defined as the inner side of that second folding arm 17, and the side of a second folding arm 17 away from the other second folding arm 17 in the extended state is defined as the outer side of that second folding arm 17.

[0083] In the above configuration, the outer side of the first folding arm 16 abuts against the outer side of the second folding arm 17 in the folded state, that is, the first folding arm 16 and the second folding arm 17 are folded inward, which allows the projections of the first folding arm 16 and the second folding arm 17 in the first direction y to be located within the projection of the top component 11 or the bottom component 12 as much as possible. This can reduce the size of the expandable mechanism in the vertical plane of the first direction y and achieve miniaturization.

[0084] In some embodiments, the rotatable connection position between the second folding arm 17 and the first folding arm 16 is located on the outside of the first folding arm 16.

[0085] Due to the above configuration, the second folding arm 17 provides some resistance to the rotation of the first folding arm 16 towards the relatively outward direction, thereby enabling the inward folding of the deformation connecting portion 14 composed of the first folding arm 16 and the second folding arm 17, with the two sets of deformation connecting portions 14 approaching each other. This configuration allows the first folding arm 16 and the second folding arm 17 to move along a designed trajectory when folding or extending, reducing the probability of the deformation connecting portion 14 folding outward. More specifically, the above design allows the first folding arm 16 and the second folding arm 17 to rotate in a single direction, causing the deformation connecting portion 14 to tend to fold inward, reducing the relative wobbling of the top component 11 and the bottom component 12 due to excessive rotation of the first folding arm 16 and the second folding arm 17 during state switching.

[0086] In other embodiments, the inner side of the first folding arm 16 abuts against the inner side of the second folding arm 17 in the folded state of the expandable mechanism, thereby enabling the first folding arm 16 and the second folding arm 17 to fold outward.

[0087] In some embodiments, see Figures 3 to 7 The deformable connecting part 14 also includes an extension arm 18, which is disposed on the first folding arm 16 near the second end 162 of the first folding arm 16 and is parallel or approximately parallel to the first folding arm 16. In the extended state of the deformable connecting part 14, the rotation point between the second folding arm 17 and the first folding arm 16 is located between the first end 181 of the extension arm 18 near the top member 11 and the first end 161 of the first folding arm 16. The inner side of the second folding arm 17 at least partially abuts against the outer side of the extension arm 18, so that the first folding arm 16 and the second folding arm 17 are parallel or approximately parallel.

[0088] The inner and outer sides of the extension arm 18 can be determined in the same way as the inner and outer sides of the first folding arm 16, which will not be repeated here.

[0089] In one application scenario, the second end of the extension arm 18, which is disposed opposite to its first end 181, is rotatably connected to the first end 171 of the second folding arm 17. That is, the second folding arm 17 is indirectly rotatably connected to the second end 162 of the first folding arm 16 near the first folding arm 16 through the extension arm 18.

[0090] The extension arm 18 can be fixedly connected to the first folding arm 16. It can be integrally formed with the first folding arm 16, or it can be fixedly connected to the first folding arm 16 through other connection methods. In some embodiments, both the first folding arm 16 and the extension arm 18 are made of multi-layered leather, and the extension arm 18 and the first folding arm 16 are connected together by sewing. The extension arm 18 and the second folding arm 17 can be a single unit, with a flexible portion between them for rotatable connection; alternatively, the extension arm 18 and the second folding arm 17 can not be a single unit, and the rotatable connection connecting the two can be a hinge or other types of rotatable connection in the prior art.

[0091] Since the rotation point between the second folding arm 17 and the first folding arm 16 in the extended state is located between the first end 181 of the extension arm 18 near the top component 11 and the first end 161 of the first folding arm 16, when the second folding arm 17 and the first folding arm 16 enter the extended state from the folded state, the extension arm 18 can prevent the relative rotation of the second folding arm 17 and the first folding arm 16, prevent excessive rotation from causing re-folding, reduce the shaking of the first folding arm 16 and the second folding arm 17 when entering the extended state, play a certain limiting and positioning role for the second folding arm 17, and assist the first folding arm 16 and the second folding arm 17 to achieve parallel or approximately parallel arrangement in the extended state of the deformable connection part 14.

[0092] In some embodiments, the extension arm 18 is integrally disposed with the first folding arm 16, which can simplify the production process and reduce costs.

[0093] In some embodiments, the extension arm 18 is fixed to the second portion 164 of the first folding arm 16, and the first end 171 of the second folding arm 17 is connected to the extension arm 18 to achieve a rotatable connection with the first folding arm 16 at the second connection point 20; in the extended state of the expandable mechanism, the extension arm 18 and the second portion 164 of the first folding arm 16 are stacked along the second direction x.

[0094] In some embodiments, see Figure 6 , Figure 7 The expandable mechanism also has a semi-folded state; when both sets of deformable connecting parts 14 are in the extended state, the expandable mechanism is in the extended state; when both sets of deformable connecting parts 14 are in the folded state, the expandable mechanism is in the folded state; when only one of the two sets of deformable connecting parts 14 is in the extended state, the expandable mechanism is in the semi-folded state.

[0095] When both sets of deformable connecting parts 14 are fully extended, the expandable mechanism is in an extended state, meaning the expandable mechanism is in a fully extended state. When both sets of deformable connecting parts 14 are fully retracted, the expandable mechanism is in a folded state, meaning the expandable mechanism is in a fully retracted state. When one deformable connecting part 14 is in an extended state and the other is in a folded state, the expandable mechanism is in a semi-folded state. When one deformable connecting part 14 is in an extended state and the other is in another partially extended state, the expandable mechanism is in a semi-folded state.

[0096] This configuration allows the two sets of deformable connecting parts 14 to be in asynchronous states, increasing the versatility of the expandable mechanism. Switching between the semi-folded, folded, and extended states enables adjustment of the orientation of the phone screen, thus improving the user experience.

[0097] In some embodiments, all rotational connection positions of the expandable mechanism are hinged, with the hinges having a certain damping, so that the expandable mechanism can be maintained in any intermediate state between the extended state and the folded state.

[0098] In some embodiments, the magnetic component 15 includes a first magnetic element 152 and a third magnetic element 151, which can be used to provide a bias force for the deformable connection portion 14 to enter a folded state.

[0099] Specifically, the first magnetic element 152 is disposed on the first folding arm 16; the third magnetic element 151 is disposed on the second folding arm 17; in the folded state, the third magnetic element 151 and the first magnetic element 152 at least partially overlap; wherein the third magnetic element 151 and the first magnetic element 152 are configured to be magnetically attracted to each other.

[0100] Specifically, when the first folding arm 16 and the second folding arm 17 transition from an extended state to a folded state, the third magnetic element 151 and the first magnetic element 152 move closer to each other. When the distance between the third magnetic element 151 and the first magnetic element 152 reaches a certain threshold, the magnetic attraction between them provides an attraction bias force for the folding tendency of the first folding arm 16 and the second folding arm 17, thereby saving the user the effort required to control the expandable mechanism to enter the folded state. When the magnetic attraction force is large enough, it can drive the first folding arm 16 and the second folding arm 17 to fold automatically, saving the user the operation path required to control the expandable mechanism to enter the folded state.

[0101] In the folded state, the third magnetic component 151 and the first magnetic component 152 at least partially overlap. For example, the third magnetic component 151 and the first magnetic component 152 are arranged along the first direction y and overlap and abut against each other. They can partially overlap and abut against each other or be set to completely overlap and abut against each other. This method can improve the stability of the first folding arm 16 and the second folding arm 17 in the folded state through magnetic attraction, thereby improving the stability of the expandable mechanism in the folded state. In other application scenarios, it is not limited that the third magnetic component 151 and the first magnetic component 152 abut against each other in the folded state. As long as the projections of the third magnetic component 151 and the first magnetic component 152 along the first direction y at least partially overlap, magnetic attraction can be achieved.

[0102] In some embodiments, the magnetic component 15 may further include multiple sets of third magnetic elements 151 and first magnetic elements 152 to provide an attraction bias force for the folding of the second folding arm 17 and the first folding arm 16 through the third magnetic elements 151 and the first magnetic elements 152, thereby indirectly providing a bias force for the bottom component 12 and the top component 11 to approach each other, and improving the stability of the expandable mechanism in the folded state.

[0103] In some embodiments, the magnetic assembly 15 includes a first magnetic element 152, a second magnetic element 154, and a third magnetic element 151. The first magnetic element 152, the second magnetic element 154, and the third magnetic element 151 can be used to provide a biasing force for the deformable connection portion 14 to enter a folded state or an extended state, and can improve the stability of the expandable mechanism in the corresponding state.

[0104] Specifically, a first magnetic element 152 is disposed on a first portion 163 of the first folding arm 16; a second magnetic element 154 is disposed on a second portion 164 of the first folding arm 16; and a third magnetic element 151 is disposed on the second folding arm 17. When the deformable connecting portion 14 is in its folded state, the first magnetic element 152 and the third magnetic element 151 are attracted together; when the deformable connecting portion 14 is in its extended state, the second magnetic element 154 and the third magnetic element 151 are attracted together. When the first folding arm 16 and the second folding arm 17 change from an extended state to a folded state, the interaction between the first magnetic element 152 and the third magnetic element 151 can provide a biasing force for the deformable connecting portion 14 to enter the folded state; when the first folding arm 16 and the second folding arm 17 change from a folded state to an extended state, the interaction between the second magnetic element 154 and the third magnetic element 151 can provide a biasing force for the deformable connecting portion 14 to enter the extended state. The specific attraction method can be referred to the above embodiment, and will not be repeated here.

[0105] In some embodiments, see Figure 3The magnetic component 15 also includes a fourth magnetic element 153, which is disposed on the side of the bottom component 12 facing the top component 11; when the expandable mechanism is in its folded state, the second magnetic element 154 is attracted to the fourth magnetic element 153.

[0106] When the first folding arm 16 and the second folding arm 17 transition from an extended state to a folded state, the bottom component 12 and the top component 11 move closer together, and the fourth magnetic component 153 and the second magnetic component 154 move closer together. When the distance between the fourth magnetic component 153 and the second magnetic component 154 reaches a certain threshold, the magnetic attraction between them can provide an attraction bias force for the folding tendency of the first folding arm 16 and the second folding arm 17, thereby saving the user the effort required to control the expandable mechanism to enter the folded state. When the magnetic attraction force is large enough, this magnetic attraction force can drive the first folding arm 16 and the second folding arm 17 to fold automatically, saving the user the operation path required to control the expandable mechanism to enter the folded state. The attraction between the second magnetic component 154 and the fourth magnetic component 153 can improve the stability of the expandable mechanism in the folded state.

[0107] In some embodiments, see Figure 3 The magnetic component 15 includes a fourth magnetic element 153 and a second magnetic element 154. The fourth magnetic element 153 is disposed on the side of the bottom component 12 facing the top component 11. The second magnetic element 154 is disposed on the second part 164 of the first folding arm 16 (in other embodiments, the second magnetic element 154 may also be disposed on the extension arm 18). When the expandable mechanism is in its folded state, the fourth magnetic element 153 and the second magnetic element 154 are attracted together.

[0108] The fourth magnetic element 153 and the second magnetic element 154 are configured to attract each other magnetically.

[0109] When the first folding arm 16 and the second folding arm 17 transition from an extended state to a folded state, the bottom component 12 and the top component 11 move closer to each other, and the fourth magnetic component 153 and the second magnetic component 154 move closer to each other. When the distance between the fourth magnetic component 153 and the second magnetic component 154 reaches a certain threshold, the magnetic attraction between them can provide an attraction bias force for the folding tendency of the first folding arm 16 and the second folding arm 17, thereby saving the user the effort required to control the expandable mechanism to enter the folded state. When the magnetic attraction force is large enough, this magnetic attraction force can drive the first folding arm 16 and the second folding arm 17 to fold automatically, saving the user the operation path required to control the expandable mechanism to enter the folded state.

[0110] In the folded state, the fourth magnetic element 153 and the second magnetic element 154 at least partially overlap. For example, the fourth magnetic element 153 and the second magnetic element 154 are arranged along the first direction y and overlap and abut against each other. They can partially overlap and abut against each other, or they can be set to completely overlap and abut against each other. This method can improve the stability of the first folding arm 16 and the second folding arm 17 in the folded state through magnetic attraction, thereby improving the stability of the expandable mechanism in the folded state. In other application scenarios, it is not limited to the fourth magnetic element 153 and the second magnetic element 154 abutting against each other in the folded state. As long as the projections of the fourth magnetic element 153 and the second magnetic element 154 along the first direction y at least partially overlap, magnetic attraction can be achieved.

[0111] In other embodiments (not shown), the magnetic assembly includes a first magnetic element 152 and a fourth magnetic element 153. The first magnetic element 152 is disposed on the first folding arm; the fourth magnetic element 153 is disposed on the side of the bottom component facing the top component; and in the folded state, the first magnetic element 152 and the fourth magnetic element 153 at least partially overlap; wherein the first magnetic element 152 and the fourth magnetic element are configured to be magnetically attracted to each other.

[0112] That is, when the first folding arm 16 and the second folding arm 17 change from the extended state to the folded state, the bottom part 12 and the top part 11 move closer to each other, the second end 162 of the first folding arm 16 moves towards the bottom part 12, and the fourth magnetic element 153 and the first magnetic element 152 move closer to each other. When the distance between the fourth magnetic element 153 and the first magnetic element 152 reaches a certain threshold, the magnetic attraction between the two can provide an attraction bias force for the folding tendency of the first folding arm 16 and the second folding arm 17.

[0113] In some embodiments, the magnetic component 15 may further include multiple sets of fourth magnetic elements 153 and second magnetic elements 154 or multiple sets of fourth magnetic elements 153 and first magnetic elements 152 to provide an attractive bias force for the folding of the second folding arm 17 and the first folding arm 16, thereby indirectly providing a bias force for the mutual approach of the bottom component 12 and the top component 11, and improving the stability of the expandable mechanism in the folded state.

[0114] In other embodiments (not shown), a fourth magnetic element may also be disposed on the side of the top component facing the bottom component to cooperate with the magnetic elements on the first folding arm, the second folding arm, or the extension arm to provide a corresponding bias force, which will not be described in detail here.

[0115] In some embodiments, see Figure 3The magnetic component 15 also includes a third magnetic element 151 and a second magnetic element 154. The third magnetic element 151 is disposed on the second folding arm 17; the second magnetic element 154 is disposed on the second part 164 of the first folding arm 16 (in other embodiments, the second magnetic element 154 may also be disposed on the extension arm 18); when the deformable connecting part 14 is in its extended state, the second magnetic element 154 and the third magnetic element 151 are attracted together.

[0116] The third magnetic element 151 and the second magnetic element 154 are configured to attract each other magnetically.

[0117] When the first folding arm 16 and the second folding arm 17 change from a folded state to an extended state, the bottom part 12 and the top part 11 move away from each other, and the second part 164 of the first folding arm 16 and the second folding arm 17 move closer to each other, so that the third magnetic element 151 and the second magnetic element 154 move closer to each other. When the distance between the third magnetic element 151 and the second magnetic element 154 reaches a certain threshold, the magnetic attraction between them can provide a bias force for the extension tendency of the first folding arm 16 and the second folding arm 17, thereby saving the user the effort required to control the expandable mechanism to enter the extended state.

[0118] In the extended state, the third magnetic element 151 and the second magnetic element 154 at least partially overlap. For example, the third magnetic element 151 and the second magnetic element 154 are arranged and overlapped along the second direction x, which can be either partially or completely overlapped. This method can improve the stability of the first folding arm 16 and the second folding arm 17 in the extended state through magnetic attraction, thereby improving the stability of the expandable mechanism in the extended state. In other application scenarios, it is not limited to the third magnetic element 151 and the second magnetic element 154 abutting each other in the extended state; as long as the projections of the third magnetic element 151 and the second magnetic element 154 along the second direction x at least partially overlap to achieve magnetic attraction.

[0119] In some embodiments, the magnetic component 15 may further include multiple sets of third magnetic elements 151 and second magnetic elements 154 to provide an attractive bias force for the extension of the second folding arm 17 and the first folding arm 16 through the third magnetic elements 151 and the second magnetic elements 154, thereby indirectly providing a bias force for the separation and positioning of the bottom component 12 and the top component 11, and improving the stability of the expandable mechanism in the extended state.

[0120] In some embodiments, see Figure 3The magnetic component 15 includes a third magnetic element 151, a first magnetic element 152, a fourth magnetic element 153, and a second magnetic element 154. The third magnetic element 151 is disposed on the second folding arm 17; the first magnetic element 152 is disposed on the first portion 163 of the first folding arm 16; the fourth magnetic element 153 is disposed on the side of the bottom component 12 facing the top component 11; and the second magnetic element 154 is disposed on the second portion 164 of the first folding arm 16 (in other embodiments, the second magnetic element 154 may also be disposed on the extension arm 18). In the folded state, the third magnetic element 151 and the first magnetic element 152 at least partially overlap, and the fourth magnetic element 153 and the second magnetic element 154 at least partially overlap. In the extended state, the third magnetic element 151 and the second magnetic element 154 at least partially overlap. The third magnetic element 151 and the first magnetic element 152 are configured to be magnetically attracted, and the fourth magnetic element 153 and the second magnetic element 154 are configured to be magnetically attracted.

[0121] Specifically, when the first folding arm 16 and the second folding arm 17 transition from an extended state to a folded state, the second part 164 of the first folding arm 16 approaches the bottom component 12. Consequently, the third magnetic component 151 approaches the first magnetic component 152, and the fourth magnetic component 153 approaches the second magnetic component 154. When the distance between the third magnetic component 151 and the first magnetic component 152 reaches a certain threshold, the magnetic attraction between them can provide an attraction bias force for the folding tendency of the first folding arm 16 and the second folding arm 17. When the distance between the fourth magnetic component 153 and the second magnetic component 154 reaches a certain threshold, the magnetic attraction between them can provide an attraction bias force for the folding tendency of the first folding arm 16 and the second folding arm 17. Therefore, the third magnetic component 151 and the first magnetic component 152, and the fourth magnetic component 153 and the second magnetic component 154 can all save the user the effort required to control the expandable mechanism to enter the folded state. When the magnetic attraction force is strong enough, it can drive the first folding arm 16 and the second folding arm 17 to fold automatically, which can save the user the operation path of controlling the expandable mechanism to enter the folding state.

[0122] When the first folding arm 16 and the second folding arm 17 change from the folded state to the extended state, the bottom part 12 and the top part 11 move away from each other, and the second part 164 of the first folding arm 16 and the second folding arm 17 move closer to each other, so that the third magnetic element 151 and the second magnetic element 154 move closer to each other. When the distance between the third magnetic element 151 and the second magnetic element 154 reaches a certain threshold, the magnetic attraction between them can provide a bias force for the extension tendency of the first folding arm 16 and the second folding arm 17, thereby saving the user the effort required to control the expandable mechanism to enter the extended state.

[0123] In the folded state, the third magnetic element 151 at least partially overlaps with the first magnetic element 152, and the fourth magnetic element 153 at least partially overlaps with the second magnetic element 154. For example, the third magnetic element 151 and the first magnetic element 152, and the fourth magnetic element 153 and the second magnetic element 154 are arranged and overlapped along the first direction y, which can be either partial or complete overlap. In the extended state, the third magnetic element 151 and the second magnetic element 154 at least partially overlap. For example, the third magnetic element 151 and the second magnetic element 154 are arranged and overlapped along the second direction x, which can be either partial or complete overlap. This method can improve the stability of the first folding arm 16 and the second folding arm 17 in the folded and extended states through magnetic attraction, thereby improving the stability of the expandable mechanism in different states. In other application scenarios, it is not limited to the third magnetic component 151 abutting against the second magnetic component 154 in the extended state, nor is it limited to the third magnetic component 151 abutting against the first magnetic component 152 and the fourth magnetic component 153 abutting against the second magnetic component 154 in the folded state. In the extended state, the projections of the third magnetic component 151 and the second magnetic component 154 along the second direction x should at least partially overlap to achieve magnetic attraction. In the folded state, the projections of the third magnetic component 151 and the first magnetic component 152 along the first direction y should at least partially overlap to achieve magnetic attraction. In the folded state, the projections of the fourth magnetic component 153 and the second magnetic component 154 along the first direction y should at least partially overlap to achieve magnetic attraction.

[0124] In some embodiments, see Figure 3 The magnetic component 15 also includes a fifth magnetic element 155 and a sixth magnetic element 156. The fifth magnetic element 155 is disposed on the side of the bottom component 12 facing the top component 11; the sixth magnetic element 156 is disposed on the side of the top component 11 facing the bottom component 12. When the expandable mechanism is in its folded state, the fifth magnetic element 155 and the sixth magnetic element 156 are attracted together.

[0125] Among them, the fifth magnetic element 155 and the sixth magnetic element 156 are configured to attract each other magnetically.

[0126] For example, in the folded state, the fifth magnetic element 155 and the sixth magnetic element 156 at least partially overlap.

[0127] When the first folding arm 16 and the second folding arm 17 transition from an extended state to a folded state, the bottom component 12 and the top component 11 move closer together. Consequently, the fifth magnetic component 155 and the sixth magnetic component 156 move closer together. When the distance between the fifth magnetic component 155 and the sixth magnetic component 156 reaches a certain threshold, the magnetic attraction between them provides an attraction bias force for the folding tendency of the first folding arm 16 and the second folding arm 17, thus saving the user the effort required to control the expandable mechanism to enter the folded state. When the magnetic attraction force is sufficiently large, it can drive the first folding arm 16 and the second folding arm 17 to fold automatically, saving the user the operational path required to control the expandable mechanism to enter the folded state.

[0128] In other embodiments, the fifth magnetic element 155 is disposed on the bottom component 12, and the sixth magnetic element 156 is disposed on the top component 11. In the folded state, the projections of the fifth magnetic element 155 and the sixth magnetic element 156 in the first direction y at least partially overlap. The projections of the fifth magnetic element 155 and the sixth magnetic element 156 in the first direction y at least partially overlap to achieve magnetic attraction.

[0129] In some embodiments, in the folded state, the projections of the fifth magnetic element 155 and the sixth magnetic element 156 toward the arrangement direction do not overlap with the projection of the folding assembly 13 toward the arrangement direction.

[0130] When the expandable mechanism is in a folded state, the folding assembly 13 is in a folded state. The projections of the fifth magnetic element 155 and the sixth magnetic element 156 in the first direction y do not overlap with the projection of the folding assembly 13 in the first direction y. This can reduce the interference of the fifth magnetic element 155 and the sixth magnetic element 156 on the folding state of the folding assembly 13, and can also reduce the size of the expandable mechanism in the first direction y.

[0131] In some embodiments, during the switching process between the extended state and the folded state of the expandable mechanism, the relative running direction of the top component 11 and the bottom component 12 remains parallel or approximately parallel to the arrangement direction (i.e., the first direction y); the arrangement direction is the stacking direction of the top component 11 and the bottom component 12 when the expandable mechanism is in the folded state.

[0132] This setup reduces the swaying of the scalable mechanism during state transitions.

[0133] In some embodiments, along the vertical direction of the arrangement direction (i.e., the second direction x), the first distance between the first ends 161 of the first folding arms 16 of the two sets of deformable connecting portions 14 is greater than the second distance between the second ends 172 of the second folding arms 17 of the two sets of deformable connecting portions 14; when the deformable connecting portions 14 are in the extended state, the lengths of the two sets of deformable connecting portions 14 are equal, and the top component 11 and the bottom component 12 are arranged parallel to each other along the vertical direction.

[0134] Specifically, the first folding arm 16 and the second folding arm 17 are in an extended state to form support arms supporting the top component 11 and the bottom component 12. Two sets of deformable connecting portions 14 form two support arms. Because the first distance is greater than the second distance, the two support arms, the top component 11, and the bottom component 12 can form an isosceles trapezoid. When the first folding arm 16 and the second folding arm 17 change from an extended state to a folded state, this isosceles trapezoid can reduce the misalignment range of the top component 11 relative to the bottom component 12 in the second direction x, reducing the space occupied by the expandable mechanism during the state switching process.

[0135] In other embodiments, the first spacing may be set to be smaller than the second spacing.

[0136] In some embodiments, see Figure 3 , Figure 6 A first connection point 19 is formed between the first folding arm 16 and the bottom component 12, a second connection point 20 is formed between the second folding arm 17 and the first folding arm 16, and a third connection point 21 is formed between the second folding arm 17 and the top component 11; wherein, the distance between the first connection point 19 and the second connection point 20 is greater than the distance between the third connection point 21 and the second connection point 20.

[0137] This configuration can reduce the misalignment range of the top component 11 relative to the bottom component 12 in the second direction x, and reduce the space occupied by the expandable mechanism during state switching.

[0138] In some embodiments, during the switching process between the extended state and the folded state of the deformable connecting portion 14, the movement directions of the second connection points 20 of the two sets of deformable connecting portions 14 are opposite or in opposite directions along the vertical direction.

[0139] The folding assembly 13 includes two sets of deformable connecting parts 14. In the extended state, the two sets of deformable connecting parts 14 are arranged at intervals along the second direction x. The method for determining the inner and outer sides of the deformable connecting parts 14 can refer to the method for determining the inner and outer sides of the first folding arm 16 described above, and will not be repeated here.

[0140] Specifically, the second connection point 20 moves in the first direction y and the second direction x. For example, when the movement directions of the second connection points 20 of the two sets of deformable connection parts 14 are opposite, the first folding arm 16 and the second folding arm 17 of the deformable connection part 14 fold inward, and the two sets of deformable connection parts 14 move closer to each other. In the folded state, the outer side of the first folding arm 16 abuts against the outer side of the second folding arm 17. For another example (not shown), when the movement directions of the second connection points 20 of the two sets of deformable connection parts 14 are opposite, the first folding arm 16 and the second folding arm 17 of the deformable connection part 14 fold outward, and the two sets of deformable connection parts 14 move away from each other. The inner side of the first folding arm 16 abuts against the inner side of the second folding arm 17.

[0141] When the second connection point 20 moves in the same direction during the state switching process, the top component 11 and the bottom component 12 can be misaligned in a larger range in the second direction x, which will increase the space occupied by the expandable mechanism during the state switching process.

[0142] Therefore, by setting the movement directions of the second connection points 20 of the two sets of deformable connecting parts 14 to be opposite or in opposite directions, the range of relative misalignment between the top part 11 and the bottom part 12 in the vertical direction (i.e., the second direction x) during state switching can be reduced, thereby reducing the space occupied by the expandable mechanism during state switching and improving the user experience. Furthermore, the expandable mechanism can switch between the extended state and the folded state through the first folding arm 16 and the second folding arm 17, which can improve the stability of the expandable mechanism during state switching.

[0143] In some embodiments, in order to improve the stability of the expandable mechanism in its extended state, the first end 161 of the first folding arm 16 may be hinged to the bottom member 12 to increase the damping effect during rotation between the two; the second end 162 of the first folding arm 16 may be hinged to the first end 171 of the second folding arm 17 to increase the damping effect during rotation between the two; and the second end 172 of the second folding arm 17 is hinged to the top member 11 to increase the damping effect during rotation between the two.

[0144] In some embodiments, the top component 11 is provided with a first limiting portion and is located on one side of the second folding arm 17. When the second folding arm 17 switches from the folded state to the extended state, one side of the second folding arm 17 serves as the front side of the rotation direction of the second folding arm 17.

[0145] In some embodiments, the top component 11 is provided with a first limiting portion and is located on one side of the second folding arm 17. When the second folding arm 17 switches from the folded state to the extended state, one side of the second folding arm 17 serves as the front side of the rotation direction of the second folding arm 17.

[0146] For example, the second folding arm 17 rotates clockwise relative to the top member 11 to switch the expandable mechanism from a folded state to an extended state. In the extended state, the first folding arm 16 and the second folding arm 17 are locked together to fix their relative positions, forming a support arm that supports the top member 11 and the bottom member 12. A first limiting part is positioned in front of the second folding arm 17 in the direction of rotation. When the expandable mechanism is already in the extended state, the first limiting part prevents the second folding arm 17 from continuing to rotate clockwise relative to the top member 11 around the third connection point 21. This prevents the support arm from continuing to rotate clockwise relative to the top member 11 around the third connection point 21, thereby reducing the swaying of the support arm and improving the stability of the expandable mechanism in the extended state.

[0147] In some embodiments, the bottom component 12 is provided with a second limiting portion and is located on one side of the first folding arm 16. When the first folding arm 16 switches from the folded state to the extended state, one side of the first folding arm 16 serves as the front side of the rotation direction of the first folding arm 16.

[0148] For example, the first folding arm 16 rotates counterclockwise relative to the bottom component 12 to switch the expandable mechanism from a folded state to an extended state. In the extended state, the first folding arm 16 and the second folding arm 17 are locked together to fix their relative positions, forming a support arm that supports the top component 11 and the bottom component 12. A second limiting part is positioned in front of the first folding arm 16 in the direction of rotation. When the expandable mechanism is already in the extended state, the second limiting part prevents the first folding arm 16 from continuing to rotate counterclockwise relative to the bottom component 12 around the first connection point 19. This prevents the support arm from continuing to rotate counterclockwise relative to the bottom component 12 around the first connection point 19, thereby reducing the swaying of the support arm and improving the stability of the expandable mechanism in the extended state.

[0149] In some embodiments, a first protrusion can be formed on the side of the top member 11 facing the bottom member 12 to form a first limiting portion; in some embodiments, a second protrusion can be formed on the side of the bottom member 12 facing the top member 11 to form a second limiting portion.

[0150] In some embodiments, see Figure 4 In the folded state of the expandable mechanism, the top member 11 and the bottom member 12 are at least partially overlapped along the arrangement direction (i.e., the first direction y), and at least a portion of the edge of the top member 11 abuts against at least a portion of the edge of the bottom member 12.

[0151] In the above manner, the top component 11 and the bottom component 12 are at least partially overlapped, which can reduce the size of the expandable mechanism in the direction perpendicular to the arrangement direction (i.e., the second direction x) when folded; furthermore, at least a portion of the edge of the top component 11 abuts against at least a portion of the edge of the bottom component 12, which can reduce the size of the expandable mechanism in the arrangement direction of the top component 11 and the bottom component 12 (i.e., the first direction y) when folded, thereby improving the miniaturization of the expandable mechanism and enhancing the user experience.

[0152] In other embodiments, the folding assembly 13 may also include three or more deformable connections 14, which can improve the stability of the expandable mechanism in the extended state.

[0153] In some embodiments, the folding assembly 13 is disposed between the top component 11 and the bottom component 12, and the top component 11 has a first receiving groove 30 on the side facing the bottom component 12, so that when the expandable mechanism is in the folded state, a receiving space is formed between the top component 11 and the bottom component 12; when the expandable mechanism is in the folded state, the folding assembly 13 is at least partially housed in the receiving space.

[0154] In this way, the folding component 13 can be stored in the first receiving slot 30, reducing the thickness of the expandable mechanism in the first direction y and improving the miniaturization of the expandable mechanism.

[0155] In some embodiments, the folding assembly 13 is disposed between the top component 11 and the bottom component 12, and the bottom component 12 is provided with a second receiving groove 40 on the side facing the top component 11, so that a receiving space is formed between the top component 11 and the bottom component 12 in the folded state; in the folded state, the folding assembly 13 is at least partially housed in the receiving space.

[0156] In this way, the second receiving slot 40 can be used to store the folding component 13, reducing the thickness of the expandable mechanism in the first direction y and improving the miniaturization of the expandable mechanism.

[0157] In some embodiments, both a first receiving slot 30 and a second receiving slot 40 may be provided.

[0158] For example, the projections of the first receiving slot 30 and the second receiving slot 40 in the first direction y completely overlap, or the projections of the openings of the first receiving slot 30 and the second receiving slot 40 in the first direction y completely overlap. In this way, the first receiving slot 30 and the second receiving slot 40 can be used together to form a receiving space, which can accommodate as many folding components 13 as possible, reduce the thickness of the expandable mechanism in the first direction y, and improve the miniaturization of the expandable mechanism.

[0159] In some embodiments, in the folded state, the folding component 13 is completely housed within the receiving space.

[0160] In this way, the folding component 13 can be completely housed within the storage space, which can further reduce the thickness of the expandable mechanism in the first direction y and improve the miniaturization of the expandable mechanism.

[0161] In some embodiments, the first receiving groove 30 has a first bottom wall 301 and a first annular sidewall connected to the first bottom wall 301 on the side facing the bottom member 12. The first annular sidewall can form an annular first receiving groove 30.

[0162] In some embodiments, the second receiving groove 40 has a second bottom wall 401 and a second annular sidewall connected to the second bottom wall 401 on the side facing the bottom member 12. The second annular sidewall can form an annular second receiving groove 40.

[0163] In some embodiments, in the folded state of the expandable mechanism, the end face of the first annular sidewall facing away from the first bottom wall 301 abuts against the end face of the second annular sidewall facing away from the second bottom wall 401.

[0164] The two end faces can be partially or completely abutted. When fully abutted, the first receiving groove 30 and the second receiving groove 40 can form a closed receiving space in the folded state, and the folding component 13 can be housed in the receiving space. This can improve the aesthetics of the expandable mechanism in the folded state, reduce the impact of external interference on the folding component 13 in the folded state, improve the service life of the folding component 13, and reduce the thickness of the expandable mechanism along the first direction y.

[0165] In other embodiments, in the folded state, the end face of the first annular sidewall facing away from the first bottom wall 301 abuts against the side of the bottom member 12 facing the top member 11. When fully abutted, a closed receiving space can also be formed. In other embodiments, in the folded state, the end face of the second annular sidewall facing away from the second bottom wall 401 abuts against the side of the top member 11 facing the bottom member 12. When fully abutted, a closed receiving space can also be formed.

[0166] Specifically, a first receiving groove 30 can be formed by providing a concave groove on the side of the top component 11 facing the bottom component 12; or a second receiving groove 40 can be formed by providing a concave groove on the side of the bottom component 12 facing the top component 11.

[0167] In some embodiments, the outer surface of the first annular sidewall is provided with a first edge groove 50. In some embodiments, the outer surface of the second annular sidewall is provided with a second edge groove 60.

[0168] The provision of the first edge groove 50 or the second edge groove 60 can form an operating groove on the expandable mechanism, which can improve the convenience of opening the expandable mechanism from the folded state to the extended state and improve the user's ease of use.

[0169] In some embodiments, the projections of the bottom component 12 and the top component 11 in the first direction y completely coincide.

[0170] In some embodiments, the projections of the bottom component 12 and the top component 11 on the first direction y are completely coincident, and the two sets of deformable connecting portions 14 of the folding assembly 13 are symmetrically arranged about the central axis of the projection.

[0171] In some embodiments, the bottom component 12 and the top component 11 are components with the same shape. For example, their projections in the first direction y are both circular, square, rhomboid, etc. Setting them to be circular can improve operational convenience and enhance aesthetics.

[0172] In some embodiments, the third magnetic element 151 can be used as the second folding arm 17 to simplify the manufacturing process and reduce the number of parts. In some embodiments, the first magnetic element 152 can be used as the first folding arm 16 to simplify the manufacturing process and reduce the number of parts.

[0173] In some embodiments, the magnetic components such as the third magnetic component 151, the first magnetic component 152, the fourth magnetic component 153, the second magnetic component 154, the fifth magnetic component 155, and the sixth magnetic component 156 can be disposed on the surface of the corresponding components (e.g., the first folding arm 16, the second folding arm 17, the top component 11, and the bottom component 12), or can be embedded in the components in a sealed or semi-closed manner, as long as the magnetic attraction effect can be achieved, and there is no specific limitation.

[0174] In other embodiments, the folding assembly 13 may also include three or more deformable connections 14, which can improve the stability of the expandable mechanism in the extended state.

[0175] In other embodiments, the deformable connection 14 may also include three or more folding arms.

[0176] In some embodiments, the top component 11 may also be fixed to the back of the mobile phone. This application uses the bottom component 12 fixed to the back of the mobile phone as an example for illustration.

[0177] In some embodiments, the bottom component 12 is detachably fixed to the back of the phone, and the connection between the bottom component 12 and the back of the phone can be achieved through a latch connection, suction cup connection, or magnetic attraction. When the phone has a phone case, the bottom component 12 is detachably fixed to the outer side of the phone case.

[0178] In some embodiments, the bottom component 12 is used to connect to an electronic device or a protective shell of an electronic device; the connection method can be a detachable connection or a fixed connection, which is not limited here; the detachable connection can be a snap connection, a magnetic connection, etc., which is not limited. In some embodiments, the deformable connection part 14 is a deformable structure, having at least two states: an extended state and a compressed state (i.e., a folded state), and can freely switch between the two states; in some embodiments, the deformable connection part 14 includes foldable legs, which include multiple segments (i.e., folding arms) and a hub located between two adjacent segments. The hub serves as a hinge point, and the segments can rotate around the hub to achieve the folding function. Depending on the different structures of the locking parts (e.g., the first locking component 22, the second locking component 23, or the third locking component 24 in the embodiments below, which have a locking function), the expandable mechanism may include multiple foldable legs.

[0179] In some embodiments, the locking portion includes a mechanism for locking the deformable connection 14 to maintain its extended and compressed states, and a mechanism for locking the top member 11 and the bottom member 12 closed so that the expandable mechanism is in a folded state. For example, in one specific embodiment, the foldable leg includes a first segment (corresponding to the second folding arm 17), a second segment (corresponding to the second portion 164 of the first folding arm 16), and a third segment (corresponding to the first portion 163 of the first folding arm 16); the bottom member 12 includes a first surface facing the electronic device / protective case and a second surface opposite thereto; the first end of the third segment (corresponding to the first end 161 of the first folding arm 16) is rotatably mounted on the first surface of the bottom member 12, and the second segment is parallel to the third segment and mounted on the third segment; the second end of the first segment (corresponding to the second end 161 of the second folding arm 17) is rotatably mounted on the first surface of the bottom member 12. The top component 11 is rotatably mounted on the second side of the top component 11 (end 172); the third segment is equipped with a third magnet (equivalent to the first magnetic component 152), the second segment is equipped with a second magnet (equivalent to the second magnetic component 154); the first segment is equipped with a first magnet (equivalent to the third magnetic component 151); the bottom component 12 is also equipped with a fourth magnet (equivalent to the fourth magnetic component 153); when the expandable mechanism is in the extended state, the first magnet and the second magnet attract each other; when the expandable mechanism is in the folded state, the first magnet and the third magnet attract each other, the third magnet and the fourth magnet attract each other, and the fifth magnet and the sixth magnet attract each other. It is understood that in the above embodiment, the first magnet, the second magnet, the third magnet, and the fourth magnet can be used to lock the deformable connecting part 14 in both the extended and compressed states; the fifth magnet and the sixth magnet can be used to lock the top component 11 and the bottom component 12 closed so that the expandable mechanism is in the folded state.

[0180] In other embodiments, the magnetic component 15 can be replaced by other detachable components, such as a latch, a button assembly, a Velcro assembly, or reusable adhesive, as long as the above-mentioned locking function can be achieved.

[0181] In the embodiment where the magnetic component 15 is used as the locking component, the magnetic component 15 also serves as a biasing function. Depending on the actual folding angle of the foldable leg, the magnetic component 15 can cause the expandable mechanism to be biased towards an extended state or a folded state. It can also be configured so that the expandable mechanism only includes three states: extended state, half-folded state, and folded state.

[0182] In other embodiments, the first segment and the second segment can be a single integrated structure, with the foldable leg folding through pleats, allowing the first and second segments to be rotatably connected. The pleats can be achieved by reducing the material thickness at certain locations or by forming a pleated structure in those locations. When the first and second segments are a single integrated structure, the first segment is rotatably connected to the third segment.

[0183] In other embodiments, the first segment and the second segment can be two independent structures connected by a hinge or other rotational connection structure in the prior art.

[0184] In other embodiments, the foldable legs can be made of flexible materials, such as flexible resins, flexible fibers, leather, or other composite materials with flexible properties. The material forming the foldable legs can be a multi-layered structure, including a magnetic layer. This magnetic layer can be a magnet, located either on the surface or between layers.

[0185] In other embodiments, the foldable leg may include two parts, namely a first segment and a third segment. The first end of the third segment is rotatably mounted on the first surface of the bottom component 12, and its second end is a free end. The first end of the first segment is rotatably mounted on the upper middle position of the third segment, and its second end is rotatably mounted on the second surface of the top component 11. The first magnet is mounted on the first segment. The second magnet and the third magnet are both mounted on the third segment and are located on both sides of the connection position between the first segment and the third segment.

[0186] In other embodiments, the foldable leg can be one or more. When the number of foldable legs is one, in order to improve the stability of the expandable mechanism in the extended state, the foldable leg can be rotatably connected to the top component 11 and the bottom component 12 by a hinge with a certain damping.

[0187] In some other embodiments, the first surface of the top component 11 is provided with an aramid fiber layer for decorative purposes.

[0188] In other embodiments, the second surface of the bottom component 12 is provided with a magnet, which can be used to magnetically connect with corresponding areas such as magnetic rings of smart devices such as mobile phones.

[0189] In some embodiments, the expandable mechanism includes at least two foldable legs, which can be considered as consisting of two segments: an upper first segment and a lower third segment. The length of the first segment is less than the length of the third segment, so that when the expandable mechanism is in the extended state, the two supporting legs form an isosceles trapezoidal shape. In this way, as a user presses the top component 11 to change the expandable mechanism from the extended state to the folded state, the top component 11 can descend substantially along a vertical path.

[0190] In some embodiments, a first groove (equivalent to a first receiving groove or a second receiving groove) is provided on the second surface of the top member 11 or on the first surface of the bottom member 12 to accommodate the folded foldable leg, so that when the expandable mechanism is in the folded state, at least the edges of the top member 11 and the bottom member 12 can abut against each other. The first groove may also be provided on the second surface of the top member 11 and on the first surface of the bottom member 12.

[0191] In some embodiments, a second groove (equivalent to a first edge groove or a second edge groove) is provided on the edge of the top component 11 or the bottom component 12 to facilitate the user in separating the top component 11 and the bottom component 12. Alternatively, a second groove may be provided on the edges of both the top component 11 and the bottom component 12.

[0192] In some embodiments, such as Figures 8 to 15 As shown, the deformable connecting part 14 includes: a first folding arm 16, the first end 161 of which is rotatably connected to the bottom part 12; a second folding arm 17, the second end 172 of which is rotatably connected to the top part 11; the second end 162 of the first folding arm 16 is rotatably connected to the second folding arm 17 at a position near the first end 171 of the second folding arm 17. Specific implementation methods and extensions of this embodiment can be found in the following embodiments.

[0193] In some embodiments, such as Figures 8 to 15 As shown, the second folding arm 17 is provided with a clearance groove 174. When the expandable mechanism is in its folded state, the first folding arm 16 is fully or partially placed in the clearance groove 174.

[0194] For example, the shape of the clearance groove 174 corresponds to the shape of the first folding arm 16. When the expandable mechanism is in the folded state, the clearance groove 174 can fully or partially accommodate the first folding arm 16. In some embodiments, when the expandable mechanism is in the folded state, the first folding arm 16 can be embedded in the clearance groove 174.

[0195] For specific implementation methods and extensions of this embodiment, please refer to the following embodiments.

[0196] In some embodiments, the clearance groove 174 may also be located on the first folding arm 16, and its shape may correspond to the shape of the second folding arm 17. When the expandable mechanism is in the folded state, the clearance groove 174 may fully or partially accommodate the second folding arm 17. Specific implementation methods and extensions of this embodiment can be found in the following embodiments.

[0197] In some embodiments, see Figures 8 to 15 The second folding arm 17 has a "U" shaped structure, including a clearance groove 174 and a connecting part 173; the second end 162 of the first folding arm 16 is rotatably connected to the upper end of the connecting part 173; when the expandable mechanism is in its extended state, the first folding arm 16 is located on the opposite inner side of the second folding arm 17, the outer side of the first folding arm 16 is partially in contact with the inner side of the second folding arm 17, and the first folding arm 16 and the second folding arm 17 are arranged parallel or substantially parallel; when the expandable mechanism is in its folded state, the first folding arm 16 is wholly or partially housed in the clearance groove 174 of the second folding arm 17, and the first folding arm 16 and the second folding arm 17 are arranged coplanarly or substantially coplanarly.

[0198] In the extended state, the second end 162 of the first folding arm 16 is rotatably connected to the upper end of the connecting portion 173. In one application scenario, the first end 171 of the second folding arm 17 is located at the lower end of the connecting portion 173.

[0199] For specific implementation methods and extensions of this embodiment, please refer to the following embodiments.

[0200] In some embodiments, see Figures 8 to 15 The magnetic component 15 includes at least two magnetic elements 157. One magnetic element 157 is located at the connection portion 173 of the second folding arm 17, and the other magnetic element 157 is located on the first folding arm 16 and near the second end 162 of the first folding arm 16.

[0201] For specific implementation methods and extensions of this embodiment, please refer to the following embodiments.

[0202] Example Group 2

[0203] In some embodiments, such as Figures 1 to 7 As shown, the expandable mechanism includes a top component 11, a bottom component 12, a folding assembly 13, and a first locking assembly 22. The folding assembly 13 is connected to the top component 11 and the bottom component 12 respectively. The folding assembly 13 has an extended state and a folded state. The folding assembly 13 changes between its extended state and its folded state so that the expandable mechanism has at least an extended state and a folded state.

[0204] The specific implementation methods of the top component 11, bottom component 12, and folding assembly 13 involved in this embodiment can be referred to the above embodiments.

[0205] The first locking component 22 is disposed between the top component 11 and the bottom component 12, and is used to indirectly or directly lock the top component 11 and the bottom component 12 when the folding component 13 is in the extended state, so that the expandable mechanism is locked in the extended state.

[0206] This design improves the stability of its extended state. For example, the first locking component 22 may include one or more sets of magnetic elements, Velcro, or fasteners, without limitation.

[0207] The specific location of the first locking component 22 is not limited. For example, one or more sets of magnetic hook and loop fasteners or locking components are provided on the folding component 13 between the top component 11 and the bottom component 12, which can indirectly fix the folding component 13 in the extended state by limiting the state of the folding component 13. For another example, one or more sets of magnetic hook and loop fasteners or locking components are respectively provided on the folding component 13 and the top component 11, or respectively provided on the folding component 13 and the bottom component 12, for fixing the folding component 13 in the extended state, etc.

[0208] In this way, the expandable mechanism can switch between an extended state and a folded state through the folding component 13; furthermore, the first locking component 22 can improve the stability of the expandable mechanism in the extended state.

[0209] In some embodiments, a first locking component 22 is disposed on the folding component 13 for locking the folding component 13 in an extended state.

[0210] The first locking component 22 locks the folding component 13 in the extended state, which can improve the stability of the folding component 13 in the extended state, and thus improve the stability of the expandable mechanism in the extended state.

[0211] In some embodiments, the expandable mechanism further includes a second locking component 23 disposed between the top component 11 and the bottom component 12, for indirectly or directly locking the top component 11 and the bottom component 12 when the folding component 13 is in its folded state, so that the expandable mechanism is locked in its folded state.

[0212] This design improves the stability of the folded state. For example, the second locking component 23 may include one or more sets of magnetic elements, Velcro, or fasteners, without limitation.

[0213] The specific location of the second locking component 23 is not limited. For example, one or more sets of magnetic hook and loop fasteners or locking components are disposed on the folding component 13 between the top component 11 and the bottom component 12 to fix the folding component 13 in a folded state; or one or more sets of magnetic hook and loop fasteners or locking components are disposed on the folding component 13 and the top component 11 respectively, or on the folding component 13 and the bottom component 12 respectively, to fix the folding component 13 in a folded state; or one or more sets of magnetic hook and loop fasteners or locking components are disposed on the bottom component 12 and the top component 11 respectively, to fix the bottom component 12 and the top component 11 in a folded state to maintain their relative positions, so that the expandable mechanism can be locked in a folded state, etc.

[0214] In some embodiments, such as Figure 3 As shown, the first locking component 22 includes a first locking member 221 and a second locking member 222. Both the first locking member 221 and the second locking member 222 are disposed on the folding component 13. When the folding component 13 is in its extended state, the first locking member 221 and the second locking member 222 are detachably connected to each other, thus maintaining the folding component 13 in its extended state. In one application scenario, the first locking member 221 is the second magnetic element 154 in the above embodiment, and the second locking member 222 is the third magnetic element 151 in the above embodiment.

[0215] When the first locking component 221 and the second locking component 222 are connected, the folding assembly 13 remains in its extended state. The user can control the folding assembly 13 to exit the extended state by disassembling and separating the first locking component 221 and the second locking component 222 to put them in a separated state.

[0216] In some embodiments, such as Figure 3 As shown, the second locking assembly 23 includes a third locking component 231 and a fourth locking component 232. The third locking component 231 is disposed on the top component 11 or the bottom component 12, and the fourth locking component is disposed on the folding assembly 13. When the folding assembly 13 is in its folded state, the third locking component 231 and the fourth locking component 232 are detachably connected to each other, so that the folding assembly maintains its folded state. In one application scenario, the third locking component 231 is the fourth magnetic component 153 in the above embodiment, and the fourth locking component 232 is the second magnetic component 154 in the above embodiment.

[0217] When the third locking component 231 and the fourth locking component 232 are connected, the folding assembly 13 remains in its folded state. The user can control the folding assembly 13 to exit the folded state by disassembling and separating the third locking component 231 and the fourth locking component 232 to put them in a separated state.

[0218] The statement that the user can disassemble and separate the first locking component 221 and the second locking component 222, and that the user can disassemble and separate the third locking component 231 and the fourth locking component 232, means that the user can apply a force to separate the two locking components, and the two locking components will separate under the force, such as the first locking component 221 and the second locking component 222, or the third locking component 231 and the fourth locking component 232.

[0219] The first locking component 221 and the second locking component 222 can be connected to each other through structural design, such as by a button structure or a Velcro structure; they can also be connected to each other by force, such as by a magnetic structure; or they can be connected by chemical bonding, such as by an adhesive part.

[0220] Similarly, the second locking component 222 and the third locking component 231 can be connected to each other through structural design, such as by a button structure or a Velcro structure; they can also be connected to each other by force, such as by a magnetic structure; or they can be connected by chemical bonding, such as by an adhesive part.

[0221] In a more specific embodiment, for example, the third locking component 231 is a first Velcro fastener, and the fourth locking component 232 is a second Velcro fastener. In the folded state, the projections of the third locking component 231 and the fourth locking component 232 along the first direction y at least partially overlap, and the third locking component 231 and the fourth locking component 232 are arranged opposite to each other and abut against each other for locking. The first Velcro fastener is located on the side of the top component 11 facing the bottom component 12, and the second Velcro fastener is correspondingly located on the side of the folding assembly 13 near the top component 11 to cooperate with the first Velcro fastener.

[0222] In some applications, the second locking component 23 may also consist of magnetic components or fasteners. The Velcro assembly can be replaced with a magnetic component assembly, a fastener assembly, etc.

[0223] In some application scenarios, the second locking component 23 may also include multiple sets of third locking components 231 and fourth locking components 232. For example, the second locking component 23 may include two corresponding magnetic components that can be locked together and two corresponding Velcro components that can be locked together.

[0224] For example, the second locking component 23 includes two corresponding and lockable fasteners. In some applications, when the second locking component 23 includes fasteners, the fasteners may include a first fastener portion disposed on the top component 11 or the bottom component 12 and a second fastener portion disposed on the folding component 13.

[0225] In some embodiments, the folding assembly 13 includes a deformation connection portion 14, the deformation connection portion 14 includes a first folding arm 16 and a second folding arm 17, the first end 161 of the first folding arm 16 is rotatably connected to the bottom component 12; the first end 171 of the second folding arm 17 is rotatably connected to the second end 162 of the first folding arm 16 near the first folding arm 16, and the second end 172 of the second folding arm 17 is rotatably connected to the top component 11.

[0226] For a detailed analysis and extension of this embodiment, please refer to the above embodiments. For specific implementation methods of the deformable connecting part 14, the first folding arm 16, and the second folding arm 17, please refer to the above embodiments.

[0227] The method of locking the relative positions of the first folding arm 16 and the second folding arm 17 in the extended state is not limited. For example, a dedicated locking mechanism, such as the first locking component 22, can be provided.

[0228] In some embodiments, in the extended state, the first folding arm 16 and the second folding arm 17 may be arranged in parallel or approximately parallel along the first direction y, or they may not be arranged in parallel, and no specific limitation is made.

[0229] In some embodiments, in the folded state, the first end 161 of the first folding arm 16 and the second end 172 of the second folding arm 17 overlap and abut against each other along the first direction y.

[0230] In some embodiments, in the folded state, the first end 161 of the first folding arm 16 and the second end 172 of the second folding arm 17 may also be staggered and spaced apart, which can reduce the size of the expandable mechanism when it is in the folded state and achieve miniaturization.

[0231] In some embodiments, the two sets of deformable connecting portions 14 are spaced apart and symmetrically arranged along the vertical direction of the first direction y.

[0232] In one application scenario, the projections of the top component 11 and the bottom component 12 on the first direction y completely overlap, and the two sets of deformable connecting parts 14 are symmetrically arranged along the central axis of the top component 11 or the bottom component 12.

[0233] In this way, the uniformity of the force distribution on the top component 11 and bottom component 12 when the deformable connection 14 is extended can be improved, and the stability of the expandable mechanism during the extension and contraction process can be improved; and the support stability of the folding assembly 13 on the top component 11 and bottom component 12 in the extended state can be improved.

[0234] In some embodiments, the rotational connection position of the second folding arm 17 and the first folding arm 16 divides the first folding arm 16 into a first part 163 and a second part 164; wherein, the first part 163 is disposed closer to the bottom component 12 relative to the second part 164; when the deformable connecting part 14 is in its extended state, the second part 164 of the first folding arm 16 abuts against the second folding arm 17, and in this state, the first folding arm 16 and the second folding arm 17 are parallel or approximately parallel; when the deformable connecting part 14 is in its folded state, the first part 163 of the first folding arm 16 abuts against the second folding arm 17; in this state, the first folding arm 16 and the second folding arm 17 are parallel or approximately parallel.

[0235] For a detailed analysis and extension of this embodiment, please refer to the above embodiments. For the specific implementation of the first part 163 and the second part 164, please refer to the above embodiments.

[0236] In some embodiments, both the first folding arm 16 and the second folding arm 17 are sheet-like structures. The rotational connection position between the second folding arm 17 and the first folding arm 16 divides the outer surface of the first folding arm 16 into a first part 163 and a second part 164. The first part 163 is disposed closer to the bottom component 12 relative to the second part 164. When the deformable connecting part 14 is in its extended state, the second part 164 of the outer surface of the first folding arm 16 abuts against the inner surface of the second folding arm 17. In this state, the first folding arm 16 and the second folding arm 17 are parallel or approximately parallel. When the deformable connecting part 14 is in its folded state, the first part 163 of the outer surface of the first folding arm 16 fits against the outer surface of the second folding arm 17. In this state, the first folding arm 16 and the second folding arm 17 are parallel or approximately parallel.

[0237] For a detailed analysis and extension of this embodiment, please refer to the above embodiments.

[0238] In some embodiments, see Figures 3 to 7The deformable connecting part 14 also includes an extension arm 18, which is disposed near the second end 162 of the first folding arm 16 and is parallel or approximately parallel to the first folding arm 16. In the extended state of the deformable connecting part 14, the rotation point between the second folding arm 17 and the first folding arm 16 is located between the first end 181 of the extension arm 18 near the top member 11 and the first end 161 of the first folding arm 16. The inner side of the second folding arm 17 at least partially abuts against the outer side of the extension arm 18, so that the first folding arm 16 and the second folding arm 17 are parallel or approximately parallel.

[0239] For a detailed analysis and extension of this embodiment, please refer to the above embodiments; for a detailed implementation of the extension arm 18, please refer to the above embodiments.

[0240] In some embodiments, see Figure 6 , Figure 7 The expandable mechanism also has a semi-folded state; when both sets of deformable connecting parts 14 are in the extended state, the expandable mechanism is in the extended state; when both sets of deformable connecting parts 14 are in the folded state, the expandable mechanism is in the folded state; when only one of the two sets of deformable connecting parts 14 is in the extended state, the expandable mechanism is in the semi-folded state.

[0241] For a detailed analysis and extension of this embodiment, please refer to the above embodiments. When both sets of deformable connecting parts 14 are in a fully extended state, the expandable mechanism is in an extended state, meaning the expandable mechanism is in a fully extended state. When both sets of deformable connecting parts 14 are in a fully retracted state, the expandable mechanism is in a folded state, meaning the expandable mechanism is in a fully retracted state. When one deformable connecting part 14 is in an extended state and one deformable connecting part 14 is in a folded state, the expandable mechanism is in a half-folded state. When one deformable connecting part 14 is in an extended state and one deformable connecting part 14 is in another partially extended state, the expandable mechanism is in a half-folded state.

[0242] This configuration allows the two sets of deformable connecting parts 14 to be in asynchronous states, increasing the versatility of the expandable mechanism. Switching between the semi-folded, folded, and extended states enables adjustment of the orientation of the phone screen, thus improving the user experience.

[0243] In some embodiments, to improve the stability of the expandable mechanism in its extended state, the first end 161 of the first folding arm 16 may be hinged to the bottom member 12 to increase the damping effect during rotation between the two; the second end 162 of the first folding arm 16 may be hinged to the first end 171 of the second folding arm 17 to increase the damping effect during rotation between the two; the second end 172 of the second folding arm 17 is hinged to the top member 11 to increase the damping effect during rotation between the two, enabling the expandable mechanism to remain in any transition state between the extended state and the folded state.

[0244] In some embodiments, the top component 11 is provided with a first limiting portion and is located on one side of the second folding arm 17. When the second folding arm 17 switches from the folded state to the extended state, one side of the second folding arm 17 serves as the front side of the rotation direction of the second folding arm 17.

[0245] For example, the second folding arm 17 rotates clockwise relative to the top member 11 to switch the expandable mechanism from a folded state to an extended state. In the extended state, the first folding arm 16 and the second folding arm 17 are locked together to fix their relative positions, forming a support arm that supports the top member 11 and the bottom member 12. A first limiting part is positioned in front of the second folding arm 17 in the direction of rotation. When the expandable mechanism is already in the extended state, the first limiting part prevents the second folding arm 17 from continuing to rotate clockwise relative to the top member 11 around the third connection point 21. This prevents the support arm from continuing to rotate clockwise relative to the top member 11 around the third connection point 21, thereby reducing the swaying of the support arm and improving the stability of the expandable mechanism in the extended state.

[0246] In some embodiments, the bottom component 12 is provided with a second limiting portion and is located on one side of the first folding arm 16. When the first folding arm 16 switches from the folded state to the extended state, one side of the first folding arm 16 serves as the front side of the rotation direction of the first folding arm 16.

[0247] For example, the first folding arm 16 rotates counterclockwise relative to the bottom component 12 to switch the expandable mechanism from a folded state to an extended state. In the extended state, the first folding arm 16 and the second folding arm 17 are locked together to fix their relative positions, forming a support arm that supports the top component 11 and the bottom component 12. A second limiting part is positioned in front of the first folding arm 16 in the direction of rotation. When the expandable mechanism is already in the extended state, the second limiting part prevents the first folding arm 16 from continuing to rotate counterclockwise relative to the bottom component 12 around the first connection point 19. This prevents the support arm from continuing to rotate counterclockwise relative to the bottom component 12 around the first connection point 19, thereby reducing the swaying of the support arm and improving the stability of the expandable mechanism in the extended state.

[0248] In some embodiments, a first protrusion can be formed on the side of the top member 11 facing the bottom member 12 to form a first limiting portion; in some embodiments, a second protrusion can be formed on the side of the bottom member 12 facing the top member 11 to form a second limiting portion.

[0249] In some embodiments, see Figure 3 The first locking component 22 includes a third magnetic element 151 and a second magnetic element 154. The third magnetic element 151 is disposed on the second folding arm 17. The second magnetic element 154 is disposed on the second part 164 of the first folding arm 16 (in other embodiments, the second magnetic element 154 may also be disposed on the extension arm 18). When the deformable connecting part 14 is in its extended state, the second magnetic element 154 and the third magnetic element 151 are attracted together.

[0250] The magnetic attraction between the third magnetic element 151 and the second magnetic element 154 can lock the extended state of the first folding arm 16 and the second folding arm 17, so that the deformable connecting part 14 is in its extended state. For specific implementations of the third magnetic element 151 and the second magnetic element 154, please refer to the above embodiments.

[0251] In some embodiments, the second locking component 23 includes a first magnetic element 152 disposed on a first portion 163 of the first folding arm 16. When the deformable connecting portion 14 is in its folded state, the first magnetic element 152 and the third magnetic element 151 are attracted together.

[0252] The magnetic attraction between the first magnetic element 152 and the third magnetic element 151 can lock the folded state of the first folding arm 16 and the second folding arm 17, so that the deformable connecting part 14 is in its folded state. That is, in this embodiment, the second locking component 23 and the first locking component 22 can cooperate to lock the folded state of the expandable mechanism. For specific implementation of the first magnetic element 152 and the third magnetic element 151, please refer to the above embodiment.

[0253] In some embodiments, see Figure 3 The second locking component 23 includes a fourth magnetic element 153, which is disposed on the side of the bottom component 12 facing the top component 11; when the deformable connecting part 14 is in its folded state, the second magnetic element 154 and the fourth magnetic element 153 are attracted together.

[0254] The magnetic attraction between the second magnetic component 154 and the fourth magnetic component 153 enables the bottom component 12 and the first folding arm 16 to be locked together, thus keeping the expandable mechanism in its folded state. Specifically, in this embodiment, the second locking component 23 and the first locking component 22 work together to lock the expandable mechanism in its folded state. For detailed implementations of the second magnetic component 154 and the fourth magnetic component 153, please refer to the above embodiments.

[0255] In some embodiments, see Figure 3 The second locking component 23 includes a fourth magnetic element 153 and a second magnetic element 154. The fourth magnetic element 153 is disposed on the side of the bottom component 12 facing the top component 11. The second magnetic element 154 is disposed on the second part 164 of the first folding arm 16 (in other embodiments, the second magnetic element 154 may also be disposed on the extension arm 18). When the expandable mechanism is in its folded state, the fourth magnetic element 153 and the second magnetic element 154 are attracted together.

[0256] The magnetic attraction between the second magnetic element 154 and the fourth magnetic element 153 enables the bottom component 12 and the first folding arm 16 to be attracted and locked, thus keeping the expandable mechanism in its folded state. In this embodiment, the second locking component 23 can be used to lock the expandable mechanism in its folded state. For specific implementation details of the second magnetic element 154 and the fourth magnetic element 153, please refer to the above embodiments.

[0257] In some embodiments, the second locking component 23 may include a first magnetic element 152 and a third magnetic element 151. The first magnetic element 152 is disposed on a first portion 163 of the first folding arm 16; the third magnetic element 151 is disposed on the second folding arm 17; when the deformable connecting portion 14 is in its folded state, the first magnetic element 152 and the third magnetic element 151 are attracted together.

[0258] In some embodiments, see Figure 3 The expandable mechanism also includes a third locking component 24, which includes a fifth magnetic element 155 and a sixth magnetic element 156. The fifth magnetic element 155 is located on the side of the bottom component 12 facing the top component 11; the sixth magnetic element 156 is located on the side of the top component 11 facing the bottom component 12. When the deformable connecting part 14 is in its folded state, the fifth magnetic element 155 and the sixth magnetic element 156 are attracted together.

[0259] The magnetic attraction between the fifth magnetic element 155 and the sixth magnetic element 156 enables the bottom component 12 and the top component 11 to be locked together, thus keeping the expandable mechanism in its folded state. In this embodiment, the third locking component 24 is used to lock the expandable mechanism in its folded state. For specific implementation details of the fifth magnetic element 155 and the sixth magnetic element 156, please refer to the above embodiments.

[0260] In other embodiments, the third locking component 24 may also be composed of Velcro. For example, the third locking component 24 includes a first Velcro and a second Velcro, wherein in the folded state, the projections of the first Velcro and the second Velcro along the first direction y at least partially overlap, and the first Velcro and the second Velcro are disposed opposite to each other and abut against each other for locking. The first Velcro is disposed on the side of the top component 11 facing the bottom component 12, and the second Velcro is correspondingly disposed on the side of the bottom component 12 facing the top component 11 to cooperate with the first Velcro.

[0261] In some applications, the third locking component 24 may also consist of a locking fastener. For example, the locking fastener may include a first locking portion disposed on the top component 11 or the bottom component 12 and a second locking portion disposed on the folding component 13.

[0262] In some embodiments, such as Figures 1 to 3 , Figure 6 and 7 As shown, the folding assembly 13 includes two sets of deformable connecting portions 14; each set of deformable connecting portions 14 is connected to the top component 11 and the bottom component 12 respectively. The deformable connecting portions 14 have at least an extended state and a folded state, such that the top component 11 and the bottom component 12 are either far apart or close together, so that the expandable mechanism has at least an extended state and a folded state.

[0263] For a detailed analysis and extension of this embodiment, please refer to the above embodiments.

[0264] In some embodiments, during the switching process between the extended state and the folded state of the expandable mechanism, the relative running direction of the top component 11 and the bottom component 12 remains parallel or approximately parallel to the arrangement direction (i.e., the first direction y); the arrangement direction is the stacking direction of the top component 11 and the bottom component 12 when the expandable mechanism is in the folded state.

[0265] This configuration reduces swaying of the scalable mechanism during state transitions. For a detailed analysis and extension of this embodiment, please refer to the embodiments described above.

[0266] In some embodiments, along the vertical direction of the arrangement direction (i.e., the second direction x), the first distance between the first ends 161 of the first folding arms 16 of the two sets of deformable connecting portions 14 is greater than the second distance between the second ends 172 of the second folding arms 17 of the two sets of deformable connecting portions 14; when the deformable connecting portions 14 are in the extended state, the lengths of the two sets of deformable connecting portions 14 are equal, and the top component 11 and the bottom component 12 are arranged parallel to each other along the vertical direction.

[0267] For a detailed analysis and extension of this embodiment, please refer to the above embodiments.

[0268] In some embodiments, see Figure 3 , Figure 6 A first connection point 19 is formed between the first folding arm 16 and the bottom component 12, a second connection point 20 is formed between the second folding arm 17 and the first folding arm 16, and a third connection point 21 is formed between the second folding arm 17 and the top component 11; wherein, the distance between the first connection point 19 and the second connection point 20 is greater than the distance between the third connection point 21 and the second connection point 20.

[0269] For a detailed analysis and extension of this embodiment, please refer to the above embodiments.

[0270] In some embodiments, see Figure 4 In the folded state of the expandable mechanism, the top member 11 and the bottom member 12 are at least partially overlapped along the arrangement direction (i.e., the first direction y), and at least a portion of the edge of the top member 11 abuts against at least a portion of the edge of the bottom member 12.

[0271] For a detailed analysis and extension of this embodiment, please refer to the above embodiments.

[0272] In some embodiments, the folding assembly 13 is disposed between the top component 11 and the bottom component 12, and the top component 11 has a first receiving groove 30 on the side facing the bottom component 12, so that when the expandable mechanism is in the folded state, a receiving space is formed between the top component 11 and the bottom component 12; when the expandable mechanism is in the folded state, the folding assembly 13 is at least partially housed in the receiving space.

[0273] For a detailed analysis and extension of this embodiment, please refer to the above embodiments. For a detailed implementation of the first receiving groove 30, please refer to the above embodiments.

[0274] In some embodiments, the folding assembly 13 is disposed between the top component 11 and the bottom component 12, and the bottom component 12 is provided with a second receiving groove 40 on the side facing the top component 11, so that a receiving space is formed between the top component 11 and the bottom component 12 in the folded state; in the folded state, the folding assembly 13 is at least partially housed in the receiving space.

[0275] For a detailed analysis and extension of this embodiment, please refer to the above embodiments. For a detailed implementation of the second receiving groove 40, please refer to the above embodiments.

[0276] In some embodiments, both a first receiving groove 30 and a second receiving groove 40 may be provided. For a detailed analysis and extension of this embodiment, please refer to the above embodiments.

[0277] In some embodiments, in the folded state, the folding component 13 is completely housed within the receiving space. Detailed analysis and extensions of this embodiment can be found in the above embodiments.

[0278] In some embodiments, the first receiving groove 30 has a first bottom wall 301 and a first annular sidewall connected to the side of the first bottom wall 301 facing the bottom member 12. The first annular sidewall forms the annular first receiving groove 30. In some embodiments, the second receiving groove 40 has a second bottom wall 401 and a second annular sidewall connected to the side of the second bottom wall 401 facing the bottom member 12. The second annular sidewall forms the annular second receiving groove 40. In some embodiments, in the folded state of the expandable mechanism, the end face of the first annular sidewall facing away from the first bottom wall 301 abuts against the end face of the second annular sidewall facing away from the second bottom wall 401. In some embodiments, the outer surface of the first annular sidewall is provided with a first edge groove 50. In some embodiments, the outer surface of the second annular sidewall is provided with a second edge groove 60.

[0279] For a detailed analysis and extension of this embodiment, please refer to the above embodiments. For specific implementation methods of the first annular sidewall, the second annular sidewall, the first edge groove 50, and the second edge groove 60, please refer to the above embodiments.

[0280] In some embodiments, such as Figures 8 to 15 As shown, the deformable connecting part 14 includes: a first folding arm 16, the first end 161 of which is rotatably connected to the bottom part 12; a second folding arm 17, the second end 172 of which is rotatably connected to the top part 11; the second end 162 of the first folding arm 16 is rotatably connected to the second folding arm 17 at a position near the first end 171 of the second folding arm 17. Specific implementation methods and extensions of this embodiment can be found in the following embodiments.

[0281] In some embodiments, such as Figures 8 to 15 As shown, the second folding arm 17 is provided with a clearance groove 174. When the expandable mechanism is in its folded state, the first folding arm 16 is fully or partially placed in the clearance groove 174.

[0282] For example, the shape of the clearance groove 174 corresponds to the shape of the first folding arm 16. When the expandable mechanism is in the folded state, the clearance groove 174 can fully or partially accommodate the first folding arm 16. In some embodiments, when the expandable mechanism is in the folded state, the first folding arm 16 can be embedded in the clearance groove 174.

[0283] For specific implementation methods and extensions of this embodiment, please refer to the following embodiments.

[0284] In some embodiments, the clearance groove 174 may also be located on the first folding arm 16, and its shape may correspond to the shape of the second folding arm 17. When the expandable mechanism is in the folded state, the clearance groove 174 may fully or partially accommodate the second folding arm 17. Specific implementation methods and extensions of this embodiment can be found in the following embodiments.

[0285] In some embodiments, see Figures 8 to 15 The second folding arm 17 has a "U" shaped structure, including a clearance groove 174 and a connecting part 173; the second end 162 of the first folding arm 16 is rotatably connected to the upper end of the connecting part 173; when the expandable mechanism is in its extended state, the first folding arm 16 is located on the opposite inner side of the second folding arm 17, the outer side of the first folding arm 16 is partially in contact with the inner side of the second folding arm 17, and the first folding arm 16 and the second folding arm 17 are arranged parallel or substantially parallel; when the expandable mechanism is in its folded state, the first folding arm 16 is wholly or partially housed in the clearance groove 174 of the second folding arm 17, and the first folding arm 16 and the second folding arm 17 are arranged coplanarly or substantially coplanarly.

[0286] In the extended state, the second end 162 of the first folding arm 16 is rotatably connected to the upper end of the connecting portion 173. In one application scenario, the first end 171 of the second folding arm 17 is located at the lower end of the connecting portion 173.

[0287] For specific implementation methods and extensions of this embodiment, please refer to the following embodiments.

[0288] In some embodiments, see Figures 8 to 15The magnetic assembly 15 includes at least two magnetic elements 157. One magnetic element 157 is located at the connecting portion 173 of the second folding arm 17, and the other magnetic element 157 is located on the first folding arm 16 and near the second end 162 of the first folding arm 16. For example, the magnetic element 157 includes a third magnetic element 151 and a first magnetic element 152. The third magnetic element 151 is mounted on the connecting portion 173 of the second folding arm 17, and the first magnetic element 152 is mounted on the first folding arm 16 and near the second end 162 of the first folding arm 16. The first locking assembly 22 includes at least the third magnetic element 151 and the first magnetic element 152.

[0289] For specific implementation methods and extensions of this embodiment, please refer to the following embodiments.

[0290] Example Group 3

[0291] In this embodiment, as Figures 8 to 10 As shown, the expandable mechanism includes a top component 11, a bottom component 12, and a deformable connecting portion 14 connecting the top component 11 and the bottom component 12; similar to Embodiment Group 1 and Embodiment Group 2, the expandable mechanism changes between the extended state and the folded state by deforming the deformable connecting portion 14.

[0292] In this embodiment, as Figures 8 to 10 As shown, the deformable connecting part 14 includes a first folding arm 16 and a second folding arm 17. The first end 161 of the first folding arm 16 is movably connected to the bottom component 12. The second end 162 of the first folding arm 16 is movably connected to the first end 171 of the second folding arm 17 or at a position close to the first end 171 of the second folding arm 17. The second end 172 of the second folding arm 17 is movably connected to the top component 11. The first folding arm 16 or the second folding arm 17 can move or rotate around the movable connection point of the first folding arm 16 and the second folding arm 17 (i.e., the second connection point 20 in the following embodiment), so that the deformable connecting part 14 can change between an extended state and a folded state, thereby enabling the expandable mechanism to change between the extended state and the folded state.

[0293] In this embodiment, as Figures 8 to 10 As shown, the second folding arm 17 is provided with a clearance groove 174, the shape of which corresponds to the shape of the first folding arm 16. When the expandable mechanism is in the folded state, the clearance groove 174 can fully or partially accommodate the first folding arm 16. In some embodiments, when the expandable mechanism is in the folded state, the first folding arm 16 can be embedded in the clearance groove 174.

[0294] In some embodiments, the clearance groove 174 may also be located on the first folding arm 16, and its shape may correspond to the shape of the second folding arm 17. When the expandable mechanism is in the folded state, the clearance groove 174 may fully or partially accommodate the second folding arm 17.

[0295] In one specific embodiment, the second folding arm 17 has a "U"-shaped structure, with its second end 172 movably connected to the top component 11. The second folding arm 17 includes a connecting portion 173 located at its first end 171 and arranged laterally. The first end 161 of the first folding arm 16 is movably connected to the bottom component 12, and its second end 162 is movably connected to the connecting portion 173 of the second folding arm 17. Furthermore, the second end 162 of the first folding arm 16 is movably connected to the upper end of the connecting portion 173 of the second folding arm 17. In some embodiments, the movable connection can be achieved through a hinge structure for rotational connection, or through a flexible connecting material for movable connection.

[0296] In some embodiments, the expandable mechanism includes a locking component; the locking component can lock the expandable mechanism in an extended state; the locking component can also lock the expandable mechanism in a folded state; preferably, it may include multiple sets of locking components, one set of which can lock the expandable mechanism in an extended state, and another set of which can lock the expandable mechanism in a folded state; preferably, each set of locking components may include two cooperating locking components, the two locking components may be located on the first folding arm 16 and the second folding arm 17 respectively; the two locking components may also be located on the first folding arm 16 and the bottom component 12 respectively; the two locking components may also be located on the second folding arm 17 and the bottom component 12 respectively; the expandable mechanism is locked in the extended or folded state by the locking of two locking components in one set of locking components; it is understood that the locking component may be locked by structural locking, such as a button locking component, or a Velcro; the locking component may be locked by adhesive bonding, such as tape; the locking component may be locked by magnetic attraction, such as a magnetic locking element.

[0297] In some embodiments, the expandable mechanism includes at least two magnetic elements 157, one magnetic element 157 being disposed at the connecting portion 173 of the second folding arm 17, and the other magnetic element 157 being disposed at a position near its second end 162 of the first folding arm 16; as Figure 8 and Figure 9As shown, when the expandable mechanism is in the extended state, the inner surface of the portion of the first folding arm 16 near the second end 162 is in contact with the outer surface of the connecting portion 173 of the second folding arm 17, and the two magnetic elements 157 are attracted together, so that the expandable mechanism is locked in the extended state.

[0298] In some embodiments, the expandable mechanism includes at least two magnetic elements 157, one of which is mounted on the first folding arm 16 and the other on the bottom component 12. When the expandable mechanism is in a folded state, the outer surface of the second folding arm 17 and the inner surface of the first folding arm 16 are in contact with the upper end face of the bottom component 12; the inner surface of the second folding arm 17 and the outer surface of the first folding arm 16 are in contact with the lower end face of the top component 11; at this time, the two magnetic elements 157 magnetically attract each other, locking the expandable mechanism in the extended state.

[0299] In some embodiments, the expandable mechanism includes at least two magnetic elements 157, one of which is mounted on the second folding arm 17 and the other on the bottom component 12. When the expandable mechanism is in a folded state, the outer surface of the second folding arm 17 and the inner surface of the first folding arm 16 are in contact with the upper end face of the bottom component 12; the inner surface of the second folding arm 17 and the outer surface of the first folding arm 16 are in contact with the lower end face of the top component 11; at this time, the two magnetic elements 157 magnetically attract each other, locking the expandable mechanism in the folded state.

[0300] In some embodiments, the expandable mechanism includes three magnetic elements 157: a first magnetic element 152, a third magnetic element 151, and a fourth magnetic element 153. The first magnetic element 152 is mounted on the first folding arm 16; the third magnetic element 151 is mounted on the connecting portion 173 of the second folding arm 17; and the fourth magnetic element 153 is mounted on the bottom component 12. When the expandable mechanism is in a folded state, the outer surface of the second folding arm 17 and the inner surface of the first folding arm 16 are in contact with the upper end face of the bottom component 12; the inner surface of the second folding arm 17 and the outer surface of the first folding arm 16 are in contact with the lower end face of the top component 11. At this time, the first magnetic element 152 and the third magnetic element 151 attract each other, locking the expandable mechanism in the extended state. When the expandable mechanism is in the folded state, the outer surface of the second folding arm 17 and the inner surface of the first folding arm 16 are in contact with the upper end face of the bottom component 12; the inner surface of the second folding arm 17 and the outer surface of the first folding arm 16 are in contact with the lower end face of the top component 11; at this time, the first magnetic element 152 and the fourth magnetic element 153 are attracted, locking the expandable mechanism in the folded state. It can be understood that, depending on the position of the fourth magnetic element 153, the third magnetic element 151 and the fourth magnetic element 153 may also be attracted in the folded state.

[0301] In some embodiments, the magnetic element 157 includes a fifth magnetic element 155 and a sixth magnetic element 156. The fifth magnetic element 155 is disposed on the side of the bottom component 12 facing the top component 11; the sixth magnetic element 156 is disposed on the side of the top component 11 facing the bottom component 12. When the expandable mechanism is in its folded state, the fifth magnetic element 155 and the sixth magnetic element 156 are attracted together, locking the expandable mechanism in the folded state.

[0302] In some embodiments, such as Figure 8 or Figure 10 As shown, the cross-section of the clearance groove 174 is stepped, forming a larger first area and a smaller second area. Correspondingly, the outer side of the first folding arm 16 also has a boss corresponding to the cross-sectional shape of the clearance groove 174. When the expandable mechanism is in a folded state, the first folding arm 16 is embedded in the first area of ​​the clearance groove 174, and the boss is embedded in the second area of ​​the clearance groove 174. The above structural design serves to limit the position of the first folding arm 16.

[0303] Example Group 4

[0304] In this embodiment, as Figures 11 to 15As shown, the expandable mechanism includes a top component 11, a bottom component 12, and a deformable connecting portion 14 connecting the top component 11 and the bottom component 12; similar to Embodiment Group 1 and Embodiment Group 2, the expandable mechanism changes between the extended state and the folded state by deforming the deformable connecting portion 14.

[0305] In this embodiment, as Figures 11 to 15 As shown, the deformable connecting part 14 includes a first folding arm 16 and a second folding arm 17. The first end 161 of the first folding arm 16 is movably connected to the bottom component 12. The second end 162 of the first folding arm 16 is movably connected to the first end 171 of the second folding arm 17 or at a position close to the first end 171 of the second folding arm 17. The second end 172 of the second folding arm 17 is movably connected to the top component 11. The first folding arm 16 or the second folding arm 17 can move or rotate around the movable connection point of the first folding arm 16 and the second folding arm 17 (i.e., the second connection point 20 in the following embodiment), so that the deformable connecting part 14 can change between an extended state and a folded state, thereby enabling the expandable mechanism to change between the extended state and the folded state.

[0306] In this embodiment, as Figures 11 to 15 As shown, the second folding arm 17 is provided with a clearance groove 174, the shape of which corresponds to the shape of the first folding arm 16. When the expandable mechanism is in the folded state, the clearance groove 174 can fully or partially accommodate the first folding arm 16. In some embodiments, when the expandable mechanism is in the folded state, the first folding arm 16 can be embedded in the clearance groove 174.

[0307] In some embodiments, the clearance groove 174 may also be located on the first folding arm 16, and its shape may correspond to the shape of the second folding arm 17. When the expandable mechanism is in the folded state, the clearance groove 174 may fully or partially accommodate the second folding arm 17.

[0308] In a specific embodiment, such as Figures 11 to 15As shown, the second folding arm 17 has a "U"-shaped structure. The second end 172 of the second folding arm 17 is movably connected to the top component 11. The second folding arm 17 includes a connecting portion 173 located at its first end 171 and arranged laterally. The first end 161 of the first folding arm 16 is movably connected to the bottom component 12. The second end 162 of the first folding arm 16 is movably connected to the connecting portion 173 of the second folding arm 17. Furthermore, the second end 162 of the first folding arm 16 is movably connected to the upper end of the connecting portion 173 of the second folding arm 17. In some embodiments, the movable connection can be achieved through a hinge structure, or through a flexible connecting material. The space between the two second folding arms 17 is called the inner side, the surface of the second folding arm 17 facing the inner side is called the inner surface, and the space between one second folding arm 17 and the other is called the outer side, with the surface of the second folding arm 17 facing the outer side being the outer surface; similarly, the space between the two first folding arms 16 is called the inner side, the surface of the first folding arm 16 facing the inner side is called the inner surface, and the space between one first folding arm 16 and the other is called the outer side, with the surface of the first folding arm 16 facing the outer side being the outer surface; preferably, in the extended state, such as Figure 11 As shown, the outer side of the first folding arm 16 is in contact with the inner side of the second folding arm 17. In the above design, when the expandable mechanism is folded, the deformable connecting part 14 moves around the movable connection position of the first folding arm 16 and the second folding arm 17, so that the two deformable connecting parts 14 fold in opposite directions, that is, outward.

[0309] In some embodiments, the expandable mechanism includes a locking component; the locking component can lock the expandable mechanism in an extended state; the locking component can also lock the expandable mechanism in a folded state; preferably, it may include multiple sets of locking components, one set of which can lock the expandable mechanism in an extended state, and another set of which can lock the expandable mechanism in a folded state; preferably, each set of locking components may include two cooperating locking components, the two locking components may be located on the first folding arm 16 and the second folding arm 17 respectively; the two locking components may also be located on the first folding arm 16 and the bottom component 12 respectively; the two locking components may also be located on the second folding arm 17 and the bottom component 12 respectively; the expandable mechanism is locked in the extended or folded state by the locking of two locking components in one set of locking components; it is understood that the locking component may be locked by structural locking, such as a button locking component, or a Velcro; the locking component may be locked by adhesive bonding, such as tape; the locking component may be locked by magnetic attraction, such as a magnetic locking element.

[0310] In some embodiments, the expandable mechanism includes at least two magnetic elements 157, one magnetic element 157 being disposed at the connecting portion 173 of the second folding arm 17, and the other magnetic element 157 being disposed at a position near its second end 162 of the first folding arm 16; as Figure 8 and Figure 9As shown, when the expandable mechanism is in the extended state, the inner surface of the portion of the first folding arm 16 near the second end 162 is in contact with the outer surface of the connecting portion 173 of the second folding arm 17, and the two magnetic components attract each other, locking the expandable mechanism in the extended state. When the expandable mechanism is converted to the folded state, as the two deformable connecting portions 14 fold outward, the two magnetic components 157 move away from the center of the expandable mechanism, increasing the distance between the magnetic components 157 on one deformable connecting portion 14 and the magnetic components 157 on the other deformable connecting portion 14 after folding, compared to the extended state. Furthermore, in the folded state, a sufficiently large distance is formed between the magnetic components 157 on one deformable connecting portion 14 and the magnetic components 157 on the other deformable connecting portion 14, ensuring that the magnetic components 157 on the deformable connecting portion 14 do not interfere with the wireless fast charging of electronic products. During the wireless fast charging process of electronic products, there is a magnetic field between the wireless fast charging module and the wireless fast charging device inside the electronic product. The magnetic flux of this magnetic field has a significant impact on the efficiency of wireless fast charging. If there is a large magnetic field component between the wireless fast charging module and the wireless fast charging device inside the electronic product, the wireless fast charging efficiency will be reduced. Therefore, in this embodiment, a sufficiently large distance is formed between the magnetic element 157 on one of the deformable connecting parts 14 and the magnetic element 157 on the other deformable connecting part 14. This means that in the folded state, along the first direction y, the projections of the magnetic elements 157 on the two deformable connecting parts 14 do not overlap or partially overlap with the projections of the wireless fast charging module or the wireless fast charging device inside the electronic product, thus avoiding the magnet from affecting the wireless charging efficiency of the electronic product.

[0311] In some embodiments, the expandable mechanism includes three magnetic elements 157: a first magnetic element 152, a third magnetic element 151, and a fourth magnetic element 153. The first magnetic element 152 is mounted on the first folding arm 16; the third magnetic element 151 is mounted on the connecting portion 173 of the second folding arm 17; and the fourth magnetic element 153 is mounted on the bottom component 12. When the expandable mechanism is in a folded state, the outer surface of the second folding arm 17 and the inner surface of the first folding arm 16 are in contact with the upper end face of the bottom component 12; the inner surface of the second folding arm 17 and the outer surface of the first folding arm 16 are in contact with the lower end face of the top component 11. At this time, the first magnetic element 152 and the third magnetic element 151 attract each other, locking the expandable mechanism in the extended state. When the expandable mechanism is in the folded state, the outer surface of the second folding arm 17 and the inner surface of the first folding arm 16 are in contact with the upper end face of the bottom component 12; the inner surface of the second folding arm 17 and the outer surface of the first folding arm 16 are in contact with the lower end face of the top component 11; at this time, the first magnetic element 152 and the fourth magnetic element 153 are attracted, locking the expandable mechanism in the folded state. It can be understood that, depending on the position of the fourth magnetic element 153, the third magnetic element 151 and the fourth magnetic element 153 may also be attracted in the folded state. Along the first direction y, the projection of the fourth magnetic element 153 does not overlap or partially overlap with the projection of the wireless fast charging module or wireless fast charging device within the electronic product, thus avoiding the fourth magnetic element 153 affecting the wireless charging efficiency of the electronic product.

[0312] In some embodiments, the device includes a fifth magnetic element 155 and a sixth magnetic element 156. The fifth magnetic element 155 is disposed on the side of the bottom component 12 facing the top component 11; the sixth magnetic element 156 is disposed on the side of the top component 11 facing the bottom component 12. When the expandable mechanism is in its folded state, the fifth magnetic element 155 and the sixth magnetic element 156 are attracted together, locking the expandable mechanism in the folded state. Along the first direction y, the projections of the fifth magnetic element 155 and the sixth magnetic element 156 do not overlap or partially overlap with the projections of the wireless fast charging module or wireless fast charging device within the electronic product, thus avoiding the fifth magnetic element 155 and the sixth magnetic element 156 from affecting the wireless charging efficiency of the electronic product.

[0313] In some embodiments, reference Figure 12 The distance between the second ends 152 of the two second folding arms 17 is less than the distance between the first ends 161 of the two first folding arms 16; so that when in the extended state, the two deformable connecting parts 14 together with the top part 11 and the bottom part 12 form an isosceles trapezoidal structure, increasing the structural stability of the deformable mechanism in the extended state.

[0314] In some embodiments, the length of the second folding arm 17 is greater than the length of the first folding arm 16.

[0315] In some embodiments, such as Figure 11 As shown, the cross-section of the clearance groove 174 is stepped, forming a larger first area and a smaller second area. Correspondingly, the inner side of the first folding arm 16 also has a boss corresponding to the cross-sectional shape of the clearance groove 174. When the expandable mechanism is in a folded state, the first folding arm 16 is embedded in the first area of ​​the clearance groove 174, and the boss is embedded in the second area of ​​the clearance groove 174. The above structural design serves to limit the position of the first folding arm 16.

[0316] Example Group 5

[0317] In some embodiments, such as Figures 1 to 7 As shown, the expandable mechanism includes a top component 11, a bottom component 12, and a folding assembly 13. The folding assembly 13 includes two sets of deformable connecting parts 14. Each deformable connecting part 14 is connected to the top component 11 and the bottom component 12 respectively. The deformable connecting part 14 has at least an extended state and a folded state. The deformable connecting part 14 can change between the extended state and the folded state, so that the top component 11 and the bottom component 12 of the expandable mechanism are either far apart or close to each other, so that the expandable mechanism has at least an extended state and a folded state.

[0318] The specific implementation methods of the top component 11, bottom component 12, folding assembly 13, and deformable connecting part 14 in this embodiment can be referred to the above embodiments. Detailed analysis and extensions of this embodiment can be found in the above embodiments.

[0319] In some embodiments, see Figure 3 , Figure 6 The deformable connecting part 14 includes a first folding arm 16 and a second folding arm 17. The first end 161 of the first folding arm 16 is rotatably connected to the bottom part 12 and forms a first connection point 19. The first end 171 of the second folding arm 17 is rotatably connected to the second end 162 of the first folding arm 16 and forms a second connection point 20. The second end 172 of the second folding arm 17 is rotatably connected to the top part 11 and forms a third connection point 21.

[0320] The specific implementation methods of the first folding arm 16, the second folding arm 17, the first connecting point 19, the second connecting point 20, and the third connecting point 21 can be referred to the above embodiments.

[0321] In some embodiments, see Figures 8 to 10The second end 162 of the first folding arm 16 is rotatably connected to the second folding arm 17 near the first end 171 of the second folding arm 17, forming a second connection point 20.

[0322] In some embodiments, during the switching process between the extended state and the folded state of the expandable mechanism, the relative running direction of the top component 11 and the bottom component 12 remains parallel or approximately parallel to the arrangement direction (i.e., the first direction y); the arrangement direction is the stacking direction of the top component 11 and the bottom component 12 when the expandable mechanism is in the folded state.

[0323] This configuration reduces swaying of the scalable mechanism during state transitions. For a detailed analysis and extension of this embodiment, please refer to the embodiments described above.

[0324] In some embodiments, during the switching process between the extended state and the folded state of the deformable connecting portion 14, the movement directions of the second connection points 20 of the two sets of deformable connecting portions 14 are opposite or in opposite directions along the vertical direction.

[0325] For a detailed analysis and extension of this embodiment, please refer to the above embodiments.

[0326] In some embodiments, along the vertical direction of the arrangement direction (i.e., the second direction x), the first distance between the first ends 161 of the first folding arms 16 of the two sets of deformable connecting portions 14 is greater than the second distance between the second ends 172 of the second folding arms 17 of the two sets of deformable connecting portions 14; when the deformable connecting portions 14 are in the extended state, the lengths of the two sets of deformable connecting portions 14 are equal, and the top component 11 and the bottom component 12 are arranged parallel to each other along the vertical direction.

[0327] For a detailed analysis and extension of this embodiment, please refer to the above embodiments.

[0328] In some embodiments, see Figure 3 , Figure 6 The distance between the first connection point 19 and the second connection point 20 is greater than the distance between the third connection point 21 and the second connection point 20. This arrangement ensures that, when the expandable mechanism is in its extended state, portions of the two deformable connection parts 14 and parts of the top component 11 and bottom component 12 form an isosceles trapezoidal shape. Figure 3As shown; the above structure makes the extended state more stable; and during the process of the expandable mechanism changing from the extended state to the folded state, the top component 11 and the bottom component 12 move closer to each other along the first direction y. Its advantage is that the folding process is smoother and the probability of the top component 11 and the bottom component 12 being out of position after folding is reduced; the out-of-position state refers to the top component 11 and the bottom component 12 overlapping and misaligning in the first direction y in the folded state.

[0329] For a detailed analysis and extension of this embodiment, please refer to the above embodiments.

[0330] In some embodiments, see Figure 3 The expandable mechanism also includes a magnetic component 15 disposed between the top component 11 and the bottom component 12, for providing an attractive bias force during the transition of the deformable connection 14 from its extended state to its folded state, causing the deformable connection 14 to tend to form its folded state.

[0331] For a detailed analysis and extension of this embodiment, please refer to the above embodiments.

[0332] In some embodiments, the magnetic component 15 is used to provide a separation bias force during the transition of the deformable connection 14 from its folded state to its extended state, causing the deformable connection 14 to tend to form its extended state.

[0333] For a detailed analysis and extension of this embodiment, please refer to the above embodiments.

[0334] In some embodiments, such as Figures 1 to 3 , Figure 6 and 7 As shown, the folding assembly 13 includes two sets of deformable connecting parts 14; each set of deformable connecting parts 14 is connected to the top part 11 and the bottom part 12 respectively.

[0335] For a detailed analysis and extension of this embodiment, please refer to the above embodiments.

[0336] In some embodiments, see Figure 3 , Figure 6The rotational connection position of the second folding arm 17 and the first folding arm 16 divides the first folding arm 16 into a first part 163 and a second part 164; wherein, the first part 163 is disposed closer to the bottom component 12 relative to the second part 164; when the deformable connecting part 14 is in its extended state, the second part 164 of the first folding arm 16 abuts against the second folding arm 17, and in this state, the first folding arm 16 and the second folding arm 17 are parallel or approximately parallel; when the deformable connecting part 14 is in its folded state, the first part 163 of the first folding arm 16 abuts against the second folding arm 17; in this state, the first folding arm 16 and the second folding arm 17 are parallel or approximately parallel.

[0337] For a detailed analysis and extension of this embodiment, please refer to the above embodiments.

[0338] In some embodiments, see Figure 3 , Figure 6 Both the first folding arm 16 and the second folding arm 17 are sheet-like structures. The rotational connection position between the second folding arm 17 and the first folding arm 16 divides the outer side of the first folding arm 16 into a first part and a second part. The first part of the outer side is the outer side of the first part 163, and the second part of the outer side is the outer side of the second part 164. The first part of the outer side is positioned closer to the bottom component 12 than the second part of the outer side. When the deformable connecting part 14 is in its extended state, the second part of the outer side of the first folding arm 16 abuts against the inner side of the second folding arm 17. In this state, the first folding arm 16 and the second folding arm 17 are parallel or approximately parallel. When the deformable connecting part 14 is in its folded state, the first part of the outer side of the first folding arm 16 fits against the outer side of the second folding arm 17. In this state, the first folding arm 16 and the second folding arm 17 are parallel or approximately parallel.

[0339] For a detailed analysis and extension of this embodiment, please refer to the above embodiments.

[0340] In some embodiments, see Figures 3 to 7 The deformable connecting part 14 also includes an extension arm 18, which is disposed near the second end 162 of the first folding arm 16 and is parallel or approximately parallel to the first folding arm 16. In the extended state of the deformable connecting part 14, the rotation point between the second folding arm 17 and the first folding arm 16 is located between the first end 181 of the extension arm 18 near the top member 11 and the first end 161 of the first folding arm 16. The inner side of the second folding arm 17 at least partially abuts against the outer side of the extension arm 18, so that the first folding arm 16 and the second folding arm 17 are parallel or approximately parallel.

[0341] For a detailed analysis and extension of this embodiment, please refer to the above embodiments.

[0342] In some embodiments, see Figure 6 , Figure 7 The expandable mechanism also has a semi-folded state; when both sets of deformable connecting parts 14 are in the extended state, the expandable mechanism is in the extended state; when both sets of deformable connecting parts 14 are in the folded state, the expandable mechanism is in the folded state; when only one of the two sets of deformable connecting parts 14 is in the extended state, the expandable mechanism is in the semi-folded state.

[0343] For a detailed analysis and extension of this embodiment, please refer to the above embodiments.

[0344] In some embodiments, the magnetic component 15 includes a first magnetic element 152, a second magnetic element 154, and a third magnetic element 151. The first magnetic element 152 is disposed on a first portion 163 of the first folding arm 16; the second magnetic element 154 is disposed on a second portion 164 of the first folding arm 16; and the third magnetic element 151 is disposed on the second folding arm 17. When the deformable connecting portion 14 is in its folded state, the first magnetic element 152 and the third magnetic element 151 are attracted together; when the deformable connecting portion 14 is in its extended state, the second magnetic element 154 and the third magnetic element 151 are attracted together.

[0345] For a detailed analysis and extension of this embodiment, please refer to the above embodiments.

[0346] In some embodiments, see Figure 3 The magnetic component 15 also includes a fourth magnetic element 153, which is disposed on the side of the bottom component 12 facing the top component 11; when the expandable mechanism is in its folded state, the second magnetic element 154 is attracted to the fourth magnetic element 153.

[0347] For a detailed analysis and extension of this embodiment, please refer to the above embodiments.

[0348] In some embodiments, see Figure 3 The magnetic component 15 includes a fourth magnetic element 153 and a second magnetic element 154. The fourth magnetic element 153 is disposed on the side of the bottom component 12 facing the top component 11. The second magnetic element 154 is disposed on the second part 164 of the first folding arm 16 (in other embodiments, the second magnetic element 154 may also be disposed on the extension arm 18). When the expandable mechanism is in its folded state, the fourth magnetic element 153 and the second magnetic element 154 are attracted together.

[0349] For a detailed analysis and extension of this embodiment, please refer to the above embodiments.

[0350] In some embodiments, see Figure 3The magnetic component 15 also includes a third magnetic element 151 and a second magnetic element 154. The third magnetic element 151 is disposed on the second folding arm 17; the second magnetic element 154 is disposed on the second part 164 of the first folding arm 16 (in other embodiments, the second magnetic element 154 may also be disposed on the extension arm 18); when the deformable connecting part 14 is in its extended state, the second magnetic element 154 and the third magnetic element 151 are attracted together.

[0351] For a detailed analysis and extension of this embodiment, please refer to the above embodiments.

[0352] In some embodiments, the second locking component 23 may include a first magnetic element 152 and a third magnetic element 151. The first magnetic element 152 is disposed on a first portion 163 of the first folding arm 16; the third magnetic element 151 is disposed on the second folding arm 17; when the deformable connecting portion 14 is in its folded state, the first magnetic element 152 and the third magnetic element 151 are attracted together.

[0353] For a detailed analysis and extension of this embodiment, please refer to the above embodiments.

[0354] In some embodiments, see Figure 3 The magnetic component 15 also includes a fifth magnetic element 155 and a sixth magnetic element 156. The fifth magnetic element 155 is disposed on the side of the bottom component 12 facing the top component 11; the sixth magnetic element 156 is disposed on the side of the top component 11 facing the bottom component 12. When the expandable mechanism is in its folded state, the fifth magnetic element 155 and the sixth magnetic element 156 are attracted together.

[0355] For a detailed analysis and extension of this embodiment, please refer to the above embodiments.

[0356] In some embodiments, the expandable mechanism further includes a locking component disposed between the top component 11 and the bottom component 12 for indirectly or directly locking the top component 11 and the bottom component 12 when the deformable connection 14 is in its extended state, so that the expandable mechanism is locked in its extended state.

[0357] For example, in some embodiments, the locking component includes a first locking component 22 disposed between the top component 11 and the bottom component 12, for indirectly or directly locking the top component 11 and the bottom component 12 when the folding component 13 is in the extended state, so that the expandable mechanism is locked in the extended state. Specific implementations of the first locking component 22 can be found in the above embodiments.

[0358] In some embodiments, the locking component is used to indirectly or directly lock the top component 11 to the bottom component 12 when the folding component 13 is in its extended state, so that the expandable mechanism is locked in its folded state.

[0359] For example, in some embodiments, the locking component includes a second locking component 23 disposed between the top component 11 and the bottom component 12, for indirectly or directly locking the top component 11 and the bottom component 12 when the folding component 13 is in its folded state, so that the expandable mechanism is locked in its folded state. Specific implementations of the second locking component 23 can be found in the embodiments described above.

[0360] In some embodiments, such as Figures 8 to 15 As shown, the deformable connecting part 14 includes: a first folding arm 16, the first end 161 of which is rotatably connected to the bottom part 12; a second folding arm 17, the second end 172 of which is rotatably connected to the top part 11; the second end 162 of the first folding arm 16 is rotatably connected to the second folding arm 17 at a position near the first end 171 of the second folding arm 17. Specific implementation methods and extensions of this embodiment can be found in the following embodiments.

[0361] In some embodiments, such as Figures 8 to 15 As shown, the second folding arm 17 is provided with a clearance groove 174. When the expandable mechanism is in its folded state, the first folding arm 16 is fully or partially placed in the clearance groove 174.

[0362] For example, the shape of the clearance groove 174 corresponds to the shape of the first folding arm 16. When the expandable mechanism is in the folded state, the clearance groove 174 can fully or partially accommodate the first folding arm 16. In some embodiments, when the expandable mechanism is in the folded state, the first folding arm 16 can be embedded in the clearance groove 174.

[0363] For specific implementation methods and extensions of this embodiment, please refer to the following embodiments.

[0364] In some embodiments, the clearance groove 174 may also be located on the first folding arm 16, and its shape may correspond to the shape of the second folding arm 17. When the expandable mechanism is in the folded state, the clearance groove 174 may fully or partially accommodate the second folding arm 17. Specific implementation methods and extensions of this embodiment can be found in the following embodiments.

[0365] In some embodiments, see Figures 8 to 15The second folding arm 17 has a "U" shaped structure, including a clearance groove 174 and a connecting part 173; the second end 162 of the first folding arm 16 is rotatably connected to the upper end of the connecting part 173; when the expandable mechanism is in its extended state, the first folding arm 16 is located on the opposite inner side of the second folding arm 17, the outer side of the first folding arm 16 is partially in contact with the inner side of the second folding arm 17, and the first folding arm 16 and the second folding arm 17 are arranged parallel or substantially parallel; when the expandable mechanism is in its folded state, the first folding arm 16 is wholly or partially housed in the clearance groove 174 of the second folding arm 17, and the first folding arm 16 and the second folding arm 17 are arranged coplanarly or substantially coplanarly.

[0366] In the extended state, the second end 162 of the first folding arm 16 is rotatably connected to the upper end of the connecting portion 173. In one application scenario, the first end 171 of the second folding arm 17 is located at the lower end of the connecting portion 173.

[0367] For specific implementation methods and extensions of this embodiment, please refer to the following embodiments.

[0368] In some embodiments, see Figures 8 to 15 The magnetic component 15 includes at least two magnetic elements 157. One magnetic element 157 is located at the connection portion 173 of the second folding arm 17, and the other magnetic element 157 is located on the first folding arm 16 and near the second end 162 of the first folding arm 16.

[0369] For specific implementation methods and extensions of this embodiment, please refer to the following embodiments.

[0370] Example Group 6

[0371] In some embodiments, such as Figures 1 to 7 As shown, the expandable mechanism includes a top component 11, a bottom component 12, and a folding assembly 13. The folding assembly 13 is connected to the top component 11 and the bottom component 12 respectively. The folding assembly 13 has an extended state and a folded state, so that the expandable mechanism has at least an extended state and a folded state.

[0372] The specific implementation methods of the top component 11, bottom component 12, and folding assembly 13 involved in this embodiment can be referred to the above embodiments.

[0373] In some embodiments, see Figure 4 In the folded state of the expandable mechanism, the top component 11 and the bottom component 12 are at least partially overlapped along the arrangement direction of the top component 11 and the bottom component 12 (i.e., the first direction y), and at least a portion of the edge of the top component 11 abuts against at least a portion of the edge of the bottom component 12.

[0374] In some embodiments, the folding assembly 13 is disposed between the top component 11 and the bottom component 12, and the top component 11 has a first receiving groove 30 on the side facing the bottom component 12, so that when the expandable mechanism is in the folded state, a receiving space is formed between the top component 11 and the bottom component 12; when the expandable mechanism is in the folded state, the folding assembly 13 is at least partially housed in the receiving space.

[0375] In this way, the folding component 13 can be housed in the first receiving slot 30, reducing the thickness of the expandable mechanism in the first direction y and improving the miniaturization of the expandable mechanism. For a detailed analysis and extension of this embodiment, please refer to the above embodiments.

[0376] In some embodiments, the folding assembly 13 is disposed between the top component 11 and the bottom component 12, and the bottom component 12 is provided with a second receiving groove 40 on the side facing the top component 11, so that a receiving space is formed between the top component 11 and the bottom component 12 in the folded state; in the folded state, the folding assembly 13 is at least partially housed in the receiving space.

[0377] In this way, the second receiving slot 40 can be used to accommodate the folding component 13, reducing the thickness of the expandable mechanism in the first direction y and improving the miniaturization of the expandable mechanism. For a detailed analysis and extension of this embodiment, please refer to the above embodiment.

[0378] In some embodiments, both a first receiving slot 30 and a second receiving slot 40 may be provided.

[0379] For example, the projections of the first receiving groove 30 and the second receiving groove 40 in the first direction y completely overlap, or the projections of the openings of the first receiving groove 30 and the second receiving groove 40 in the first direction y completely overlap. In this way, the first receiving groove 30 and the second receiving groove 40 can jointly form a receiving space, maximizing the storage of the folding component 13, reducing the thickness of the expandable mechanism in the first direction y, and improving the miniaturization of the expandable mechanism. For a detailed analysis and extension of this embodiment, please refer to the above embodiments.

[0380] In some embodiments, in the folded state, the folding component 13 is completely housed within the receiving space.

[0381] In this way, the folding component 13 is completely housed within the receiving space, further reducing the thickness of the expandable mechanism in the first direction y and improving the miniaturization of the expandable mechanism. For a detailed analysis and extension of this embodiment, please refer to the above embodiments.

[0382] In some embodiments, the first receiving groove 30 has a first bottom wall 301 and a first annular sidewall connected to the first bottom wall 301 on the side facing the bottom member 12. The first annular sidewall forms the annular first receiving groove 30. Detailed analysis and extensions of this embodiment can be found in the above embodiments.

[0383] In some embodiments, the second receiving groove 40 has a second bottom wall 401 and a second annular sidewall connected to the second bottom wall 401 on the side facing the bottom member 12. The second annular sidewall forms an annular second receiving groove 40. Detailed analysis and extensions of this embodiment can be found in the above embodiments.

[0384] In some embodiments, in the folded state of the expandable mechanism, the end face of the first annular sidewall facing away from the first bottom wall 301 abuts against the end face of the second annular sidewall facing away from the second bottom wall 401.

[0385] For a detailed analysis and extension of this embodiment, please refer to the above embodiments. The two end faces can partially or completely abut each other. When completely abutting, the first receiving groove 30 and the second receiving groove 40 can form a closed receiving space in the folded state, and the folding assembly 13 can be housed within this space. This improves the aesthetics of the expandable mechanism in the folded state, reduces the impact of external interference on the folding assembly 13 in the folded state, increases the service life of the folding assembly 13, and reduces the thickness of the expandable mechanism along the first direction y.

[0386] In other embodiments, in the folded state, the end face of the first annular sidewall facing away from the first bottom wall 301 abuts against the side of the bottom member 12 facing the top member 11. When fully abutted, a closed receiving space can also be formed. In other embodiments, in the folded state, the end face of the second annular sidewall facing away from the second bottom wall 401 abuts against the side of the top member 11 facing the bottom member 12. When fully abutted, a closed receiving space can also be formed.

[0387] Specifically, a first receiving groove 30 can be formed by providing a concave groove on the side of the top component 11 facing the bottom component 12; or a second receiving groove 40 can be formed by providing a concave groove on the side of the bottom component 12 facing the top component 11.

[0388] In some embodiments, the outer surface of the first annular sidewall is provided with a first edge groove 50. In some embodiments, the outer surface of the second annular sidewall is provided with a second edge groove 60.

[0389] For a detailed analysis and extension of this embodiment, please refer to the above embodiments. The provision of the first edge groove 50 or the second edge groove 60 can form an operating groove on the expandable mechanism, which can improve the convenience of opening the expandable mechanism from the folded state to the extended state, and improve the user's ease of use.

[0390] In some embodiments, in the folded state, the first edge groove 50 and the second edge groove 60 at least partially overlap and communicate along the arrangement direction.

[0391] That is, the first edge groove 50 and the second edge groove 60 overlap and connect at least partially along the first direction y. In this way, the first edge groove 50 and the second edge groove 60 can be used together to form an operating groove, increasing the area of ​​the operating space and improving the user's convenience.

[0392] In some embodiments, in the folded state, the opening of the first edge groove 50 and the opening of the second edge groove 60 completely overlap and communicate with each other. For example, the first edge groove 50 and the second edge groove 60 can be set to have the same size and shape. This not only further improves the ease of operation, but also improves the aesthetics and reduces the complexity of the manufacturing process.

[0393] In some embodiments, the first edge groove 50 is spaced apart from the first receiving groove 30. In some embodiments, the second edge groove 60 is spaced apart from the second receiving groove 40.

[0394] Specifically, the first edge groove 50 is not connected to the first receiving groove 30. The second edge groove 60 is not connected to the second receiving groove. This arrangement prevents the user from touching the folding component 13 and affecting its extension when the user operates the expandable mechanism to extend it, thus improving operational smoothness.

[0395] In some embodiments, the folding assembly 13 includes two sets of deformable connecting portions 14; each set of deformable connecting portions 14 is rotatably connected to the top component 11 and the bottom component 12 respectively, and the deformable connecting portions 14 have at least an extended state and a folded state. This ensures that the expandable mechanism has at least an extended state and a folded state, and the two sets of deformable connecting portions 14 are spaced apart along the vertical direction of the arrangement direction.

[0396] For a detailed analysis and extension of this embodiment, please refer to the above embodiments. In this way, the extension and retraction of the folding assembly 13 can be achieved by utilizing the extension and retraction of the two sets of deformable connecting parts 14, which can improve the stability during the extension and retraction process and improve the stability of the expandable mechanism in the extended state.

[0397] In some embodiments, the outer surface of the first annular sidewall is provided with two symmetrically arranged first edge grooves 50. In some embodiments, the outer surface of the second annular sidewall is provided with symmetrically arranged second edge grooves 60.

[0398] The two first edge grooves 50 or the two second edge grooves 60 can form two operating grooves, which facilitates the user to separate the top part 11 and the bottom part 12 by pinching the first edge grooves 50 on both sides of the expandable mechanism, thereby improving the ease of operation. In some embodiments, the two first edge grooves 50 and the two second edge grooves 60 are symmetrically arranged, which can further improve the ease of operation.

[0399] In some embodiments, the arrangement direction of the two sets of deformable connecting portions 14 is perpendicular to the arrangement direction of the two first edge grooves 50. In some embodiments, the arrangement direction of the two sets of deformable connecting portions 14 is perpendicular to the arrangement direction of the two second edge grooves 60.

[0400] For example, the second direction x is perpendicular to the first direction y. The second direction x includes a first sub-direction and a second sub-direction that are perpendicular to each other. The two sets of deformable connecting parts 14 are arranged along the first sub-direction, and the two first edge grooves 50 are arranged along the second sub-direction. When the user separates the top part 11 and the bottom part 12 by pinching the first edge grooves 50 on both sides, setting the arrangement direction of the two sets of deformable connecting parts 14 perpendicular to the arrangement direction of the two first edge grooves 50 can improve the uniformity of force on the two sets of deformable connecting parts 14, improve the stability during state changes, and improve the synchronization of the movement trajectory of the two sets of deformable connecting parts 14 during state transitions. Setting the arrangement direction of the two sets of deformable connecting parts 14 perpendicular to the arrangement direction of the two second edge grooves 60 can also achieve this effect.

[0401] In some embodiments, the arrangement direction of the two first edge grooves 50 can be set to be parallel to the arrangement direction of the two second edge grooves 60. In the first direction y, the projection of the first edge groove 50 and the projection of the second edge groove 60 completely coincide. The arrangement direction of the two sets of deformable connecting parts 14 is perpendicular to the arrangement direction of the two first edge grooves 50, which can further improve the ease of operation.

[0402] The method for preparing the protective shell proposed in this application is used to prepare the protective shell in the above embodiments. It can be adjusted based on different structures of the protective shell, and all of them are included within the scope of patent protection of this application.

[0403] In some embodiments, such as Figure 11 and 14 As shown, the projections of the top component 11 and the bottom component 12 in the first direction y completely overlap; a groove 121 is provided; the first end of the first folding arm 16 is rotatably connected to the bottom surface of the groove 121; the projection of the second end of the second folding arm 17 along the first direction y is also located within the range of the projection of the groove 121 along the first direction y; when the expandable mechanism is in the folded state, as... Figure 15As shown, the folded deformable connecting part 14 is completely located within the groove 121; at this time, the annular area of ​​the outer periphery of the top part 11 abuts against the annular area of ​​the outer periphery of the bottom part 12.

[0404] Example Group 7

[0405] Based on Embodiments 1 to 6, the deformable connection portion 14 includes a first folding arm 16 and a second folding arm 17. The first folding arm 16 and the second folding arm 17 can be made of flexible material, such as leather or woven fiber material, or a multilayer composite of the above materials. The magnetic component is mounted on the surface of the first folding arm 16 and the second folding arm 17 or is housed within them. "Hosted within the first folding arm 16 and the second folding arm 17" means that the magnetic component is located inside the first folding arm 16 and the second folding arm 17. In a specific embodiment, both the first folding arm 16 and the second folding arm 17 are made of multiple layers of leather material, with the magnetic component located between two layers of leather material. The addition of the magnetic component, in addition to providing the locking and biasing functions mentioned in the above embodiments, can also strengthen the first folding arm 16 and the second folding arm 17, giving them a certain rigidity and improving the structural stability of the expandable device in the extended state. In other embodiments, the first folding arm 16 and the second folding arm 17 may also be made of a rigid material, which may be a rigid resin material or a metal material, and the magnetic component may be located on the surface or inside the rigid material. In some specific embodiments, the first folding arm 16 and the second folding arm 17 may be made of a flexible aramid material; in other specific embodiments, the first folding arm 16 and the second folding arm 17 may also be made of a rigid aramid material; the difference between the flexible aramid material and the rigid aramid material is that the rigid aramid material is an aramid material with greater rigidity obtained by impregnating the flexible aramid material with a thermosetting resin, and the thermosetting resin may be epoxy resin. It is understood that the extension arm 18 may be made of a similar structure and similar materials as the first folding arm 16 or the second folding arm 17.

[0406] In some optional embodiments, the top component 11 and the bottom component 12 are both disc-shaped structures; the top component 11 and the bottom component 12 have equal areas; the first folding arm 16 and the second folding arm 17 are both rectangular or trapezoidal sheet-like structures.

[0407] In some alternative embodiments, the top component 11 or the bottom component 12 is made of resin material; the surface of the top component 11 or the bottom component 12 may be provided with an aramid fiber layer to improve the user's feel.

[0408] In some optional embodiments, the bottom component 12 is equipped with a seventh magnetic element located on the side of the bottom component 12 away from the top component. The seventh magnetic element is used to dock with an electronic product or a magnetic protective case for an electronic product. The seventh magnetic element may be a ring structure; in a specific embodiment, the bottom component 12 has a groove on the side facing away from the top component 11, the groove being shaped to correspond to the seventh magnetic element, and the seventh magnetic element can be embedded in the groove.

[0409] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An extensible mechanism, characterized by, The scalable mechanism includes: Top component; Bottom component; A folding assembly includes two sets of deformable connecting parts; each set of deformable connecting parts is connected to the top part and the bottom part respectively, and the deformable connecting parts have an extended state and a folded state. The deformable connecting parts can change between the extended state and the folded state, so that the top part and the bottom part of the expandable mechanism are far apart or close to each other, so that the expandable mechanism has at least an extended state and a folded state. The deformable connection portion includes: The first folding arm has its first end rotatably connected to the bottom component, forming a first connection point; The second folding arm has a first end rotatably connected to the upper part of the first folding arm near the second end of the first folding arm, or the second end of the first folding arm is rotatably connected to the upper part of the second folding arm near the first end of the second folding arm, forming a second connection point; the second end of the second folding arm is rotatably connected to the top component, forming a third connection point. In the process of switching between its extended state and its folded state, the top component and the bottom component maintain a relative running direction that is parallel or approximately parallel to the arrangement direction; the arrangement direction is the stacking direction of the top component and the bottom component when the expandable mechanism is in the folded state.

2. The expandable mechanism of claim 1, wherein, In the direction perpendicular to the arrangement direction, the first distance between the first ends of the first folding arms of the two sets of deformable connecting parts is greater than the second distance between the second ends of the second folding arms of the two sets of deformable connecting parts. When the deformable connecting parts are in the extended state, the lengths of the two sets of deformable connecting parts are equal, and the top part and the bottom part are arranged parallel to each other along the vertical direction.

3. The expandable mechanism of claim 2, wherein, The distance between the first connection point and the second connection point is greater than the distance between the third connection point and the second connection point.

4. The expandable mechanism of claim 1, wherein, The scalable mechanism also includes: A magnetic component, disposed between the top component, the bottom component, or the top component and the bottom component, is used to provide an attractive biasing force during the process of the deformable connection switching from its extended state to its folded state, so that the deformable connection tends to form its folded state. The magnetic component is also used to provide a separation bias force during the process of the deformable connection switching from its folded state to its extended state, so that the deformable connection tends to form its extended state. The folding assembly includes two sets of deformable connecting parts; each set of deformable connecting parts is connected to the top component and the bottom component respectively.

5. The expandable mechanism of claim 4, wherein, The first end of the second folding arm is rotatably connected to the upper part of the first folding arm near the second end of the first folding arm; the rotatable connection position between the second folding arm and the first folding arm divides the first folding arm into a first part and a second part; wherein, the first part is disposed near the bottom component relative to the second part; When the deformable connecting part is in its extended state, the second part of the first folding arm abuts against the second folding arm. In this state, the first folding arm and the second folding arm are parallel or approximately parallel. When the deformable connecting part is in its folded state, the first part of the first folding arm abuts against the second folding arm; in this state, the first folding arm and the second folding arm are parallel or approximately parallel.

6. The expandable mechanism of claim 4, wherein, The first end of the second folding arm is rotatably connected to the upper part of the first folding arm near the second end of the first folding arm; both the first folding arm and the second folding arm are sheet-like structures, and the rotatable connection position between the second folding arm and the first folding arm divides the outer side of the first folding arm into a first part and a second part; wherein, the first part is located closer to the bottom component than the second part; When the deformable connecting part is in its extended state, the second part of the outer side of the first folding arm abuts against the inner side of the second folding arm. In this state, the first folding arm and the second folding arm are parallel or approximately parallel. When the deformable connecting part is in its folded state, the first part of the outer side of the first folding arm is in contact with the outer side of the second folding arm; in this state, the first folding arm and the second folding arm are parallel or approximately parallel.

7. The expandable mechanism of claim 4, wherein, The first end of the second folding arm is rotatably connected to the upper part of the first folding arm near the second end of the first folding arm; the deformable connection part further includes: An extension arm is disposed on the first folding arm at a position near the second end of the first extension arm, and is disposed parallel or approximately parallel to the first folding arm; When the deformable connection is in its extended state, the rotation point between the second folding arm and the first folding arm is located between the first end of the extension arm near the top component and the first end of the first folding arm. The inner side of the second folding arm at least partially abuts against the outer side of the extension arm, so that the first folding arm and the second folding arm are arranged parallel or approximately parallel.

8. The expandable mechanism according to claim 1, characterized in that, The expandable mechanism also has a semi-extended state; when both sets of deformable connecting parts are in the extended state, the expandable mechanism is in the extended state; when both sets of deformable connecting parts are in the folded state, the expandable mechanism is in the folded state; when only one of the two sets of deformable connecting parts is in the extended state, the expandable mechanism is in the semi-extended state.

9. The expandable mechanism of claim 5 or 6, wherein, The magnetic component includes: A first magnetic element is disposed on a first portion of the first folding arm; A second magnetic element is disposed on the second part of the first folding arm; A third magnetic component is provided on the second folding arm; When the deformable connecting part is in its folded state, the first magnetic element and the third magnetic element attract each other. When the deformable connecting part is in its extended state, the second magnetic element and the third magnetic element attract each other.

10. The expandable mechanism of claim 9, wherein, The magnetic component includes: A fourth magnetic component is disposed on the side of the bottom component facing the top component; When the expandable mechanism is in its folded state, the second magnetic element and the fourth magnetic element are attracted to each other.

11. The expandable mechanism of claim 5 or 6, wherein, The magnetic component includes: A fourth magnetic component is disposed on the side of the bottom component facing the top component; A second magnetic element is disposed on the second part of the first folding arm; When the expandable mechanism is in its folded state, the fourth magnetic element attracts the second magnetic element.

12. The expandable mechanism of claim 5 or 6, wherein, The magnetic component includes: A third magnetic component is provided on the second folding arm; A second magnetic element is disposed on the second part of the first folding arm; When the deformable connecting part is in its extended state, the second magnetic element and the third magnetic element are attracted to each other.

13. The expandable mechanism of claim 5 or 6, wherein, The magnetic component includes: A first magnetic element is disposed on a first portion of the first folding arm; A third magnetic component is provided on the second folding arm; When the deformable connecting part is in its folded state, the first magnetic element and the third magnetic element attract each other.

14. The expandable mechanism of claim 4, wherein, The magnetic component also includes: The fifth magnetic component is located on the side of the bottom component facing the top component; A sixth magnetic component is provided on the side of the top component facing the bottom component; When the expandable mechanism is in its folded state, the fifth magnetic element and the sixth magnetic element are attracted to each other.

15. The expandable mechanism of claim 1, wherein, The expandable mechanism further includes: a locking component disposed between the top component and the bottom component, for indirectly or directly locking the top component and the bottom component when the deformable connection is in its extended state, so that the expandable mechanism is locked in its extended state; and / or, for indirectly or directly locking the top component and the bottom component when the folding component is in its extended state, so that the expandable mechanism is locked in its folded state.

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