Expandable mechanism

Abstract

The invention provides an extensible mechanism which comprises a top part, a bottom part, a folding assembly and a first locking assembly, the folding assembly is connected with the top part and the bottom part, the folding assembly has an extending state and a folding state, and the folding assembly changes between the extending state and the folding state. The extensible mechanism at least has an extending state and a folding state; the first locking assembly is disposed between the top member and the bottom member for indirectly or directly locking the top member and the bottom member when the folding assembly is in the extended state such that the expandable mechanism is locked in the extended state. The stability of the extensible mechanism in the stretching state can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment accessories, and in particular to an expandable mechanism. Background Art

[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 supporting functions as brackets for mobile phones and other electronic devices.

[0003] In the prior art, this type of expandable mechanism has poor stability in the extended state and provides a poor user experience. Summary of the Invention

[0004] The present application provides an expandable mechanism, which can improve the stability of the expandable mechanism in an extended state.

[0005] In order to solve the above technical problems, the present application provides an expandable mechanism, which includes a top component, a bottom component, a folding assembly, and a first locking assembly. The folding assembly is connected to the top component and the bottom component respectively, and the folding assembly has an extended state and a folded state. The folding assembly changes between its extended state and its folded state so that the expandable mechanism has at least an extended state and a folded state; the first locking assembly is arranged between the top component and the bottom component, and is used to indirectly or directly lock the top component and the bottom component when the folding assembly is in the extended state, so that the expandable mechanism is locked in the extended state.

[0006] The beneficial effects of the present application are as follows: the expandable mechanism of the present application includes a top member, a bottom member, a folding assembly, and a first locking assembly, wherein the folding assembly is connected to the top member and the bottom member respectively, and the folding assembly has an extended state and a folded state, and the folding assembly changes between its extended state and its folded state so that the expandable mechanism has at least an extended state and a folded state; the first locking assembly is arranged between the top member and the bottom member, and is used to indirectly or directly lock the top member and the bottom member when the folding assembly is in the extended state, so that the expandable mechanism is locked in the extended state. In this way, the expandable mechanism can be switched between the extended state and the folded state by the folding assembly, and can achieve relative expansion and contraction between the top member and the bottom member; further, the first locking assembly can improve the stability of the expandable mechanism in the extended state. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive work, among which:

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

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

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

[0011] Figure 4 yes Figure 1 A schematic diagram of the structure of the expandable mechanism in the folded state according to the embodiment;

[0012] Figure 5 yes Figure 4 A schematic side view of an embodiment;

[0013] Figure 6 yes Figure 1 A schematic diagram of the structure of the expandable mechanism in a semi-folded state according to an embodiment;

[0014] Figure 7 yes Figure 6 A schematic side view of an embodiment;

[0015] Figure 8 1 is a schematic diagram of the three-dimensional structure of another embodiment of the expandable mechanism of the present application (in the extended state);

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

[0017] Figure 10 yes Figure 8 A schematic diagram of the structure of the expandable mechanism in a semi-folded state according to an embodiment;

[0018] Figure 11 1 is a schematic diagram of the three-dimensional structure of another embodiment of the expandable mechanism of the present application (in the extended state);

[0019] Figure 12 1 is a side view of another embodiment of the expandable mechanism of the present application (in the extended state);

[0020] Figure 13 yes Figure 11 A schematic side view of an expandable mechanism according to an embodiment;

[0021] Figure 14 yes Figure 11 A schematic diagram of the structure of the expandable mechanism in a semi-folded state according to an embodiment;

[0022] Figure 15 yes Figure 11 Schematic diagram of the structure of the expandable mechanism in the folded state in the embodiment. DETAILED DESCRIPTION

[0023] In the following description, specific details such as specific system structures and techniques are provided for purposes of illustration rather than limitation to facilitate a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obscuring the description of the present application with unnecessary detail.

[0024] The terms "first", "second", etc. in this application are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. It should be understood that when used in this specification and the appended claims, the term "including" indicates the presence of the described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or their collections. It should also be understood that the terms used in this specification are merely for the purpose of describing specific embodiments and are not intended to limit this application. As used in this specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include the plural forms. It should also be further understood that the term "and / or" 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 these combinations.

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

[0026] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts 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 supporting functions as brackets for mobile phones and other electronic devices.

[0028] The expandable mechanism provided in this application can be applied to a variety of electronic devices, such as mobile phones, tablet computers, portable media players, cameras and other electronic devices or other portable electronic devices, and can provide support for electronic devices.

[0029] In the prior art, this type of expandable mechanism usually requires the user to manually provide the force required to close the expandable mechanism, which is inconvenient to operate and provides a poor user experience.

[0030] It should be noted that the expandable mechanism provided in this application can be used in electronic devices to support electronic devices. The following description will be made using a mobile phone as an example.

[0031] Example Group 1

[0032] This application proposes an extensible mechanism, such as Figures 1 to 7 The expandable mechanism includes a top member 11, a bottom member 12, a folding assembly 13, and a magnetic assembly 15. The folding assembly 13 includes a deformable connection portion 14. The deformable connection portion 14 is connected to the top member 11 and the bottom member 12, respectively. The deformable connection portion 14 has at least an extended state and a folded state. The deformable connection portion 14 can change between the extended state and the folded state, so that the top member 11 and the bottom member 12 of the expandable mechanism move away from or closer to each other, 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 member 11 and the bottom member 12. In other embodiments, the magnetic assembly 15 is disposed between the top member 11 and the bottom member 12.

[0033] In some embodiments, the magnetic component 15 is used to provide an attractive biasing force when the deformable connection portion 14 switches from its extended state to its folded state, so that the deformable connection portion 14 tends to form its folded state.

[0034] Among them, 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 deformable connection part 14; it should be noted that the deformation method of the deformable connection part 14 is not limited, such as folding, sleeve expansion and contraction, elastic deformation, etc.

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

[0036] In the above manner, the expandable mechanism can be switched between the extended state and the folded state through the folding component 13, and the relative expansion and contraction between the top component 11 and the bottom component 12 can be achieved; further, a magnetic component 15 is provided between the top component 11 and the bottom component 12, and the magnetic force of the magnetic component 15 can provide an attractive bias force for the top component 11 and the bottom component 12, which can save the user's force in controlling the expandable mechanism to enter the folded state, improve the convenience of user operation, and make the state switching faster, so that the user can feel a better hand feel.

[0037] In some embodiments, when at least a portion of the deformable connection portion 14 is in an extended state, the user can, on the one hand, use the extended deformable connection portion 14 to extend the top member 11 and the bottom member 12, thereby enabling the expandable mechanism to support the electronic device. Furthermore, the extended deformable connection portion 14 can form a receiving gap between the top member 11 and the bottom member 12, which can accommodate the fingers of the hand holding the electronic device, further improving the user's convenience in using the electronic device.

[0038] 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 a direction perpendicular to the arrangement direction.

[0039] Among them, such as Figure 1 As shown, the folding component 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, and the contraction and extension movement of the deformable connection part 14 can drive the top component 11 and the bottom component 12 to move relative to each other in the first direction y, thereby realizing the top component 11 and the bottom component 12 to move closer or farther away.

[0040] For example, when the expandable mechanism is applied to a mobile phone, the top member 11 is fixed to the back of the mobile phone. The fixing method can be magnetic fixing or structural connection fixing. The deformable connecting portion 14 can support the top member 11 and the bottom member 12 in the first direction y in its extended state. The bottom member 12 abuts against the support surface (such as a desktop). This enables the expandable mechanism to support the mobile phone on the support surface, and the expandable mechanism plays a role in supporting the mobile phone. It should be noted that the bottom member 12 can also be fixed to the back of the mobile phone. This application uses the fixing of the top member 11 to the back of the mobile phone as an example for description.

[0041] The extended state of the deformable connecting portion 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 in which the distance between the top member 11 and the bottom member 12 is the largest, such as Figures 1 to 3 The fully folded state refers to the state where the distance between the top member 11 and the bottom member 12 is the smallest, as shown Figure 4 and Figure 5 As shown; the deformable connection part 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 part 14 to be in different incompletely extended states, which can increase the diversity of application scenarios of the expandable mechanism.

[0042] It should be noted that, in the present application, the deformable connection portion 14 can drive the expandable mechanism to switch states. For example, when the deformable connection 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, and no further details will be given. When the folding assembly 13 includes an extended state and a folded state, the state switching of the deformable connection portion 14 can drive the folding assembly 13 to switch states, and then drive the expandable mechanism to switch states. For example, when the deformable connection 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, and no further details will be given.

[0043] Among them, the deformable connecting part 14 may include folding parts, elastic parts, etc., which can drive the expandable mechanism to switch between the extended state and the folded state through deformation (size change or shape change, etc.). Specifically, it can be achieved through various methods such as the extension and folding of the folding part, the elastic deformation of the elastic component, and the relative movement of multiple groups of sleeves. There is no specific limitation.

[0044] Among them, the telescopic direction of the expandable mechanism is parallel to the first direction y, which can more directly and efficiently adjust the spacing distance between the top component 11 and the bottom component 12, and can realize the switching of the expandable mechanism between its extended state and its folded state with a shorter moving path.

[0045] In some embodiments, 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 respectively connected to the top part 11 and the bottom part 12. It is understood that in other specific embodiments of the present application, the number of deformable connecting parts 14 is not limited and can 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] Among them, the two groups of deformable connection parts 14 are spaced apart along the direction perpendicular to the arrangement direction (i.e., the first direction y) (i.e., the second direction x), which can improve the smoothness of the movement when the deformable connection part 14 drives 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 arranged between the top component 11 and the bottom component 12, and can provide an attractive bias force for the top component 11 and the bottom component 12 through magnetic force, which can save the user's force and operation path for controlling the expandable mechanism to enter the folded state, thereby improving 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 top component 11 and the bottom component 12 with an attractive biasing force is not limited.

[0050] For example, two mutually attractive permanent magnets are respectively disposed on the top member 11 and the bottom member 12. When the deformable connection portion 14 switches from its extended state to its folded state, the top member 11 and the bottom member 12 approach each other. When the distance between the permanent magnet on the top member 11 and the permanent magnet on the bottom member 12 reaches a threshold, a magnetic attraction is formed between the two. This magnetic attraction can provide a biasing force for the top member 11 and the bottom member 12 to approach each other, thereby reducing the user's effort in controlling the expandable mechanism to enter its folded state. When the magnetic attraction is sufficiently large, this magnetic attraction can automatically drive the top member 11 and the bottom member 12 to engage, thereby reducing the user's effort in controlling the expandable mechanism to enter its folded state.

[0051] For another example, when the top component 11 includes a magnetizable material, a permanent magnet is disposed on the bottom component 12. During the process of the deformable connection portion 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 value, the permanent magnet can magnetize the corresponding area of ​​the top component 11, and a magnetic attraction force is formed between the two. This magnetic attraction force can provide a bias force for the top component 11 and the bottom component 12 to approach each other, and this magnetic attraction force can save the user the force of controlling the expandable mechanism to enter its folded state; when the magnetic attraction force is large enough, when the distance between the permanent magnet and the top component 11 reaches a threshold value, this magnetic attraction force can drive the top component 11 and the bottom component 12 to automatically attract each other, which can save the user the operating path of controlling the expandable mechanism to enter its folded state.

[0052] For another example, the magnetic component 15 can indirectly provide an attractive biasing force for the top component 11 and the bottom component 12 when the expandable mechanism is folded by providing a biasing force for the deformable connecting portion 14 to enter the folded state. Figure 3 As shown, the magnetic component 15 may include multiple magnetic parts, the deformable connecting part 14 includes a first folding arm 16 and a second folding arm 17 that are rotatably arranged, the first end 161 of the first folding arm 16 is rotatably arranged with the bottom part 12, the position on the first folding arm 16 close to its second end 162 is rotatably arranged with the first end 171 of the second folding arm 17, and the second end 172 of the second folding arm 17 is rotatably arranged with the top part 11; the magnetic component 15 includes a third magnetic part 151 arranged in the second folding arm 17 (for example, it can be arranged inside the second folding arm 17), and a first magnetic part 152 arranged in the first folding arm 16 and magnetically attracted to the third magnetic part 151 (for example, it can be arranged inside the first folding arm 16). When the deformable connection part 14 switches from the extended state to the folded state, the second folding arm 17 rotates around the rotational connection position between it and the first folding arm 16, so that the third magnetic part 151 of the second folding arm 17 gradually approaches the first magnetic part 152. As the deformable connection part 14 contracts, the distance between the third magnetic part 151 and the first magnetic part 152 decreases to reach a threshold value, and the attraction between the third magnetic part 151 and the first magnetic part 152 can drive the first folding arm 16 and the second folding arm 17 to automatically attract and fold, thereby providing an attraction bias force for the top part 11 and the bottom part 12, so that the expandable mechanism can achieve semi-automatic contraction to a certain extent, saving the user's operation path and effort, and enabling the expandable mechanism to remain in the folded state more stably after folding.

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

[0054] In the above manner, the expandable mechanism can switch between the extended state and the folded state through the two groups of deformable connecting parts 14, which can improve the stability of the expandable mechanism when switching states; the setting of the two groups of deformable connecting parts 14 can improve the stability of the expandable mechanism in its extended state; further, the magnetic component 15 is set between the top part 11 and the bottom part 12, and can provide an attractive bias force to the top part 11 and the bottom part 12 through magnetic force, which can save the user's effort in controlling the expandable mechanism to enter its folded state, improve the convenience of user operation, and the magnetic attraction force can improve the stability of the expandable mechanism in its folded state.

[0055] In some embodiments, the magnetic assembly 15 is used to provide a separating biasing force during the transition of the deformable connection portion 14 from its folded state to its extended state, causing the deformable connection portion 14 to tend toward its extended state. In this way, the user can reduce the amount of force and operating path required to control the expandable mechanism to enter its extended state, thereby improving user convenience.

[0056] For example, the magnetic component 15 indirectly provides a separation biasing force for the top component 11 and the bottom component 12 when the expandable mechanism is extended by providing a biasing force for the folding component 13 to enter the extended state. Figure 3 As shown, the magnetic component 15 may include multiple magnetic parts, the folding component 13 includes a deformable connecting part 14, the deformable connecting part 14 includes a first folding arm 16 and a second folding arm 17 that are rotatably arranged, the first end 161 of the first folding arm 16 is rotatably arranged with the bottom part 12, the position of the first folding arm 16 near its second end 162 is rotatably arranged with the first end 171 of the second folding arm 17, and the second end 172 of the second folding arm 17 is rotatably arranged with the top part 11; the magnetic component 15 includes a third magnetic part 151 arranged in the second folding arm 17 (for example, it can be arranged inside the second folding arm 17), and a second magnetic part 154 arranged in the first folding arm 16 and magnetically attracted to the third magnetic part 151 (for example, it can be arranged inside the first folding arm 16). When the deformable connecting portion 14 switches from the folded state to the extended state, the second folding arm 17 rotates around the rotational connection position between it and the first folding arm 16. It can be understood that the rotation direction of the second folding arm 17 in this process is opposite to the rotation direction of the second folding arm 17 in the process from the extended state to the folded state; this process causes the third magnetic member 151 of the second folding arm 17 to gradually approach the second magnetic member 154. As the deformable connecting portion 14 stretches, the distance between the third magnetic member 151 and the second magnetic member 154 decreases to a threshold value, and the attraction between the third magnetic member 151 and the second magnetic member 154 can drive the first folding arm 16 and the second folding arm 17 to automatically engage and stretch (such as Figures 1 to 3As shown), it is possible to provide a separation biasing force for the top component 11 and the bottom component 12, so that the expandable mechanism can be semi-automatically extended to a certain extent, saving the user's operation path and effort, and enabling the expandable mechanism to be more stably maintained in the extended state after folding.

[0057] In some embodiments, the magnetic component 15 may include a first group of magnetic components and a second group of magnetic components, the first group of magnetic components including the first magnetic member 152 and the third magnetic member 151, which are used to make the expandable mechanism tend to form the folded state and lock the expandable mechanism in the folded state by magnetic attraction; the second group of magnetic components including the second magnetic member 154 and the third magnetic member 151, which are used to make the expandable mechanism tend to form the extended state and lock the expandable mechanism in the extended state by magnetic attraction; and the position of the third magnetic member 151 can be controlled by controlling the shape of the expandable mechanism, such as the distance between the top member 11 and the bottom member 12, so that the third magnetic member 151 is close to the first magnetic member 152 or close to the second magnetic member 154. For example, when the top member 11 and the bottom member 12 are When the distance between the bottom member 12 is less than the first threshold, the third magnetic member 151 is closer to the first magnetic member 152, so that the magnetic force between the third magnetic member 151 and the first magnetic member 152 is greater than the magnetic force between the third magnetic member 151 and the second magnetic member 154. At this time, the third magnetic member 151 tends to be attracted to the first magnetic member 152, so that the expansion mechanism tends to form the folded state; when the distance between the top member 11 and the bottom member 12 is greater than the first threshold, the third magnetic member 151 is closer to the second magnetic member 154, so that the magnetic force between the third magnetic member 151 and the second magnetic member 154 is greater than the magnetic force between the third magnetic member 151 and the first magnetic member 152. At this time, the third magnetic member 151 tends to be attracted to the second magnetic member 154, so that the expandable mechanism tends to form the extended state. When the magnetic members are attracted to each other, the state of the expandable mechanism is locked by the magnetic force, 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 arranged on the first folding arm 16 near the second end 162 of the first folding arm 16 and is arranged 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 arranged with the bottom member 12, and the first folding arm 16 near the first end 162 is arranged parallel to the first folding arm 16. The position of the second end 162 is rotatably set with the first end 171 of the second folding arm 17, and the second end 172 of the second folding arm 17 is rotatably set with the top component 11; the magnetic component 15 includes a third magnetic component 151 arranged on the second folding arm 17, a first magnetic component 152 arranged on the first folding arm 16, and a second magnetic component 154 arranged on the extension arm 18 (for example, it can be arranged inside the extension arm 18); the third magnetic component 151 can be magnetically attracted to the first magnetic component 152, and the third magnetic component 151 is magnetically attracted to the second magnetic component 154. When the deformable connection part 14 switches from the folded state to the extended state, the extension arm 18 and the second folding arm 17 approach each other, so the third magnetic part 151 and the second magnetic part 154 approach each other. When the distance between the third magnetic part 151 and the second magnetic part 154 reaches the threshold, the attraction between the third magnetic part 151 and the second magnetic part 154 can drive the extension arm 18 and the second folding arm 17 to automatically attract each other, so that the second folding arm 17 and the first folding arm 16 can be extended, so that the deformable connection part 14 enters the extended state, which enables 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 in the extended state more stably after extension.

[0059] In the above manner, the expandable mechanism can realize the switching of the expandable mechanism between the extended state and the folded state through the folding component 13. The magnetic component 15 is arranged 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 during the process of entering the folded state, and provide a separation bias force for the top component 11 and the bottom component 12 through magnetic force during the process of entering the extended state, which can save the user's force when controlling the switching state of the expandable mechanism and improve the convenience of user operation.

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

[0061] In one application scenario, the two sets of deformable links 14 can be simultaneously extended and collapsed to achieve smooth transition between the extended and collapsed states of the expandable mechanism. For example, when the expandable mechanism needs to switch from the collapsed state to the extended state, the two sets of deformable links 14 can be simultaneously switched from the collapsed state to the extended state, thereby driving the top member 11 and the bottom member 12 away from each other along the first direction y, thereby achieving extension of the expandable mechanism. It is understood that the top member 11 and the bottom member 12 can also move away from each other, thereby driving the deformable links 14 to deform. Conversely, when the expandable mechanism needs to switch from the extended state to the folded state, the two sets of deformable links 14 can be simultaneously switched from the extended state to the folded state, thereby driving the top member 11 and the bottom member 12 toward each other along the first direction y, thereby achieving collapse of the expandable mechanism, which can also be understood as contraction. It is understood that the top member 11 and the bottom member 12 can also move toward each other, thereby driving the deformable links 14 to deform.

[0062] In some embodiments, see Figure 3 、 Figure 6 The deformable 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, and the second end 172 of the second folding arm 17 is rotatably set to the top component 11.

[0063] The above-mentioned structure of this embodiment can form a rotatable first connection point 19 between the first end 161 of the first folding arm 16 and the bottom part 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 close to 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 part 11, which can improve the flexibility of the deformation connection part 14 in rotating and folding relative to the bottom part 12 and the top part 11, thereby improving the reliability and smoothness of the 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) 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 arranged close to the bottom part 12 relative to the second part 164; when the deformable connection 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 remain parallel or approximately parallel; when the deformable connection 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 remain parallel or approximately parallel.

[0065] In which, when the deformable connection part 14 is in the extended state, 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 connection part 14, the first end 161 of the first folding arm 16 abuts against the second end 172 of the second folding arm 17.

[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 part 12; the arm segment that is rotatably connected to the first folding arm 16 and 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; the second end 172 of the second folding arm 17 refers to the arm segment that is rotatably connected to the top part 11.

[0067] In which, in the extended state, along the first direction y, the first folding arm 16 and the second folding arm 17 are parallel, 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, and 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 part 11 and the bottom part 12.

[0068] Specifically, the first end 161 of the first folding arm 16 and the second end 172 of the second folding arm 17 move closer together, causing the deformable connecting portion 14 to begin to contract from the extended state. When the first and second folding arms 16, 17 are completely folded, the first portion 163 of the first folding arm 16 abuts the second folding arm 17, and the deformable connecting portion 14 is in the folded state. Therefore, the extension of the first and second folding arms 16, 17 can push the bottom member 12 and the top member 11 apart, thereby extending the expandable mechanism. The folding of the first and second folding arms 16, 17 can drive the bottom member 12 and the top member 11 closer together, thereby contracting the expandable mechanism. Conversely, the separation of the bottom member 12 and the top member 11 can also drive the extension of the first and second folding arms 16, 17, and the folding of the bottom member 12 and the top member 11 can also drive the folding of the first and second folding arms 16, 17. In other words, the present invention does not limit the position of force applied to cause the expandable mechanism to deform.

[0069] Since 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, that is, the rotational connection position of 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 (close to the second end 162) rather than the second end 162, therefore, during the state switching process, the first folding arm 16 can play a certain limiting and obstructing role on the rotation of the second folding arm 17, so that the first folding arm 16 and the second folding arm 17 can rotate in a single direction (fold inward or outward), reducing the relative shaking of the top part 11 and the bottom part 12 due to excessive rotation of the first folding arm 16 and the second folding arm 17 during the state switching process. For example, when in the process of switching from the folded state to the extended state, this setting can prevent the first folding arm 16 and the second folding arm 17 from entering the folded state again due to excessive rotation.

[0070] In some embodiments, when the expandable mechanism is in the extended state, along the first direction y, the first folding arm 16 and the second folding arm 17 may not be arranged in parallel, and the specific limitation is not made.

[0071] In some embodiments, see Figure 3 、 Figure 6The first folding arm 16 and the second folding arm 17 are both sheet-like structures, and the rotational connection position of the second folding arm 17 and the first folding arm 16 divides the outer side surface of the first folding arm 16 into a first part and a second part, the first part of the outer side surface is the outer side surface of the above-mentioned first part 163, and the second part of the outer side surface is the outer side surface of the above-mentioned second part 164; wherein, the first part of the outer side surface is arranged close to the bottom part 12 relative to the second part of the outer side surface; when the deformable connection part 14 is in its extended state, the second part of the outer side surface of the first folding arm 16 abuts against the inner side surface of the second folding arm 17, in this state, the first folding arm 16 and the second folding arm 17 remain parallel or approximately parallel; when the deformable connection part 14 is in its folded state, the first part of the outer side surface of the first folding arm 16 is in contact with the outer side surface of the second folding arm 17; in this state, the first folding arm 16 and the second folding arm 17 remain parallel or approximately parallel.

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

[0073] The first folding arm 16 and the second folding arm 17 are both 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 can also be a rod-shaped structure, or a combination of a rod-shaped structure and a sheet-shaped structure; wherein, for example, when the first folding arm 16 is a rod-shaped structure, its inner line or inner side surface abuts against the bottom part 12, and its outer line or outer side surface abuts against the outer side surface 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 special 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 are overlapped and abutted 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 in the folded state and achieve miniaturization.

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

[0079] In one application scenario, the projections of the top component 11 and the bottom component 12 in the first direction y completely overlap, and the two groups 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 distribution of the force exerted by the deformable connection part 14 on the top part 11 and the bottom part 12 when 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 component 13 on the top part 11 and the bottom part 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 spaced apart along the second direction x, so that the two first folding arms 16 are spaced apart along the second direction x, and the two second folding arms 17 are spaced apart along the second direction x. The side of a first folding arm 16 that is closer to the other first folding arm 16 in the extended state is defined as the inner side of the first folding arm 16, and the side of a first folding arm 16 that is away from the other first folding arm 16 in the extended state is defined as the outer side of the first folding arm 16. The side of a second folding arm 17 that is closer to the other second folding arm 17 in the extended state is defined as the inner side of the second folding arm 17, and the side of a second folding arm 17 that is away from the other second folding arm 17 in the extended state is defined as the outer side of the second folding arm 17.

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

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

[0085] Due to the above arrangement, the second folding arm 17 has a certain effect of hindering the rotation of the first folding arm 16 toward the relative outward direction, thereby enabling the deformable connection portion 14 composed of the first folding arm 16 and the second folding arm 17 to fold inward, and the two sets of deformable connection portions 14 to approach each other. This arrangement enables the first folding arm 16 and the second folding arm 17 to move according to the designed trajectory when folding or extending, reducing the probability of the deformable connection portion 14 folding outward. More specifically, the above design enables the first folding arm 16 and the second folding arm 17 to rotate in a single direction, thereby causing the deformable connection portion 14 to fold inward, which can reduce the relative shaking of the top member 11 and the bottom member 12 caused by excessive rotation of the first folding arm 16 and the second folding arm 17 during state switching.

[0086] In other embodiments, it can be arranged that when the expandable mechanism is in the folded state, the inner side of the first folding arm 16 abuts against the inner side of the second folding arm 17 , so that the first folding arm 16 and the second folding arm 17 can be folded outward.

[0087] In some embodiments, see Figures 3 to 7 The deformable connection portion 14 also includes an extension arm 18, which is arranged on the first folding arm 16 at a position close to the second end 162 of the first folding arm 16, and is maintained parallel or approximately parallel to the first folding arm 16; when the deformable connection portion 14 is 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 close to the top component 11 and the first end 161 of the first folding arm 16, and the inner side of the second folding arm 17 is at least partially in contact with the outer side of the extension arm 18, so that the first folding arm 16 and the second folding arm 17 are maintained in parallel, or approximately in parallel.

[0088] The inner side and outer side of the extension arm 18 may refer to the determination method of the inner side and outer side 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 arranged opposite to the first end 181 of the extension arm 18, 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 position of the second end 162 of the first folding arm 16 on 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 to form a single unit, or it can be fixedly connected to the first folding arm 16 by other connection methods. In some embodiments, the first folding arm 16 and the extension arm 18 are both made of multi-layer 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, and the rotation connection is achieved through the flexible portion between them. The extension arm 18 and the second folding arm 17 can also be separate units, and the rotation connection between them can be a hinge or other type of rotation connection known in the art.

[0091] Among them, 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 close to 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 hinder the relative rotation of the second folding arm 17 and the first folding arm 16, prevent excessive rotation from causing folding again, 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 settings when the deformable connection part 14 is in the extended state.

[0092] In some embodiments, the extension arm 18 and the first folding arm 16 are integrally provided, 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 rotational 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 connection parts 14 are in the extended state, the expandable mechanism is in the extended state; when both sets of deformable connection parts 14 are in the folded state, the expandable mechanism is in the folded state; when only one of the two sets of deformable connection 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 in a fully extended state, the expandable mechanism is in an extended state, i.e., the expandable mechanism is in a fully extended state; when both sets of deformable connecting parts 14 are in a fully contracted state, the expandable mechanism is in a folded state, i.e., the expandable mechanism is in a fully contracted 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 semi-folded state. When one deformable connecting part 14 is in an extended state and one deformable connecting part 14 is in another state that is not fully extended, the expandable mechanism is in a semi-folded state.

[0096] This setting can make the states of the two groups of deformable connecting parts 14 asynchronous, increase the state diversity of the expandable mechanism, and switch between the semi-folded state, the folded state, and the extended state to adjust the orientation of the mobile phone screen, thereby improving the user experience.

[0097] In some embodiments, all rotational connection positions of the expandable mechanism are rotationally connected by hinges, and the hinges have 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 assembly 15 includes a first magnetic member 152 and a third magnetic member 151 . The first magnetic member 152 and the third magnetic member 151 can be used to provide a biasing force for the deformable connecting portion 14 to enter the folded state.

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

[0100] When the first folding arm 16 and the second folding arm 17 transition from an extended state to a folded state, the third magnetic member 151 and the first magnetic member 152 approach each other. When the distance between the third magnetic member 151 and the first magnetic member 152 reaches a certain threshold, the magnetic attraction between the two can provide an attraction bias force for the folding trend of the first folding arm 16 and the second folding arm 17, thereby saving the user the effort of controlling 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 automatically fold, which can save the user the operation path of controlling the expandable mechanism to enter the folded state.

[0101] Among them, in the folded state, the third magnetic member 151 and the first magnetic member 152 at least partially overlap. For example, the third magnetic member 151 and the first magnetic member 152 are arranged along the first direction y and overlap and abut. They can partially overlap and abut, or they can be set to completely overlap and abut. 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, and improve the stability of the expandable mechanism in the folded state. In other application scenarios, it is not necessary to limit the third magnetic member 151 and the first magnetic member 152 to abut in the folded state. The projections of the third magnetic member 151 and the first magnetic member 152 along the first direction y at least partially overlap to achieve magnetic attraction.

[0102] In some embodiments, the magnetic component 15 may also include multiple groups of third magnetic parts 151 and first magnetic parts 152, so as to provide an attractive bias force for the folding of the second folding arm 17 and the first folding arm 16 through the third magnetic parts 151 and the first magnetic parts 152, thereby indirectly providing a bias force for the bottom part 12 and the top part 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 member 152, a second magnetic member 154, and a third magnetic member 151. The first magnetic member 152, the second magnetic member 154, and the third magnetic member 151 can be used to provide a biasing force for the deformable connection portion 14 to enter the folded state or the extended state, and can improve the stability of the expandable mechanism in the corresponding state.

[0104] Specifically, the first magnetic member 152 is provided on the first portion 163 of the first folding arm 16; the second magnetic member 154 is provided on the second portion 164 of the first folding arm 16; and the third magnetic member 151 is provided on the second folding arm 17. When the deformable connection portion 14 is in its folded state, the first magnetic member 152 and the third magnetic member 151 are attracted to each other; when the deformable connection portion 14 is in its extended state, the second magnetic member 154 and the third magnetic member 151 are attracted to each other. When the first folding arm 16 and the second folding arm 17 transition from the extended state to the folded state, the interaction between the first magnetic member 152 and the third magnetic member 151 can provide a biasing force for the deformable connection portion 14 to enter the folded state; when the first folding arm 16 and the second folding arm 17 transition from the folded state to the extended state, the interaction between the second magnetic member 154 and the third magnetic member 151 can provide a biasing force for the deformable connection 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 assembly 15 further includes a fourth magnetic member 153 , which is disposed on a side of the bottom member 12 facing the top member 11 ; when the expandable mechanism is in its folded state, the second magnetic member 154 is attracted to the fourth magnetic member 153 .

[0106] 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 approach each other, and the fourth magnetic part 153 and the second magnetic part 154 approach each other. When the distance between the fourth magnetic part 153 and the second magnetic part 154 reaches a certain threshold, the magnetic attraction between the two can provide an attraction bias force for the folding trend of the first folding arm 16 and the second folding arm 17, thereby saving the user the effort of controlling 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, which can save the user the operation path of controlling the expandable mechanism to enter the folded state. The attraction between the second magnetic part 154 and the fourth magnetic part 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 component 153 and a second magnetic component 154. The fourth magnetic component 153 is arranged on the side of the bottom component 12 facing the top component 11; the second magnetic component 154 is arranged on the second part 164 of the first folding arm 16 (in other embodiments, the second magnetic component 154 can also be arranged on the extension arm 18). When the expandable mechanism is in its folded state, the fourth magnetic component 153 and the second magnetic component 154 are attracted to each other.

[0108] The fourth magnetic component 153 and the second magnetic component 154 are configured to be magnetically attracted to each other.

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

[0110] Among them, in the folded state, the fourth magnetic member 153 and the second magnetic member 154 at least partially overlap. For example, the fourth magnetic member 153 and the second magnetic member 154 are arranged along the first direction y and overlap and abut. They can partially overlap and abut, or they can be set to completely overlap and abut. 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, and improve the stability of the expandable mechanism in the folded state. In other application scenarios, it is not limited to the fourth magnetic member 153 and the second magnetic member 154 abutting in the folded state. The projections of the fourth magnetic member 153 and the second magnetic member 154 along the first direction y at least partially overlap to achieve magnetic attraction.

[0111] In other embodiments (not shown), the magnetic assembly includes a first magnetic component 152 and a fourth magnetic component 153, wherein the first magnetic component 152 is disposed on the first folding arm; the fourth magnetic component 153 is disposed on the side of the bottom component facing the top component; and in the folded state, the first magnetic component 152 and the fourth magnetic component 153 at least partially overlap; wherein the first magnetic component 152 and the fourth magnetic component 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 approach each other, the second end 162 of the first folding arm 16 moves toward the direction close to the bottom part 12, and the fourth magnetic part 153 and the first magnetic part 152 approach each other. When the distance between the fourth magnetic part 153 and the first magnetic part 152 reaches a certain threshold, the magnetic attraction between the two can provide an attractive 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 also include multiple groups of fourth magnetic parts 153 and second magnetic parts 154 or multiple groups of fourth magnetic parts 153 and first magnetic parts 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 bottom part 12 and the top part 11 to approach each other, and improving the stability of the expandable mechanism in the folded state.

[0114] In other embodiments (not shown), the fourth magnetic member may also be provided on the side of the top member facing the bottom member to cooperate with the magnetic member on the first folding arm, the second folding arm or the extension arm to provide a corresponding biasing force, which will not be repeated.

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

[0116] The third magnetic component 151 and the second magnetic component 154 are configured to be magnetically attracted to each other.

[0117] Among them, 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 approach each other, so that the third magnetic part 151 and the second magnetic part 154 approach each other. When the distance between the third magnetic part 151 and the second magnetic part 154 reaches a certain threshold, the magnetic attraction between the two can provide a bias force for the extension trend of the first folding arm 16 and the second folding arm 17, thereby saving the user the effort of controlling the expandable mechanism to enter the extended state.

[0118] Among them, in the extended state, the third magnetic member 151 and the second magnetic member 154 at least partially overlap. For example, the third magnetic member 151 and the second magnetic member 154 are arranged along the second direction x and overlap and abut. They can partially overlap and abut, or they can be set to completely overlap and abut. 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, and improve the stability of the expandable mechanism in the extended state. In other application scenarios, it is not limited to the third magnetic member 151 and the second magnetic member 154 abutting in the extended state. The projections of the third magnetic member 151 and the second magnetic member 154 along the second direction x at least partially overlap to achieve magnetic attraction.

[0119] In some embodiments, the magnetic component 15 may also include multiple groups of third magnetic parts 151 and second magnetic parts 154, so as 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 parts 151 and the second magnetic parts 154, thereby indirectly achieving a bias force for the mutual separation and positioning of the bottom part 12 and the top part 11, and improving the stability of the expandable mechanism in the extended state.

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

[0121] Among them, when the first folding arm 16 and the second folding arm 17 change from the extended state to the folded state, the second part 164 of the first folding arm 16 and the bottom part 12 approach each other, so the third magnetic part 151 and the first magnetic part 152 approach each other, and the fourth magnetic part 153 and the second magnetic part 154 approach each other. When the distance between the third magnetic part 151 and the first magnetic part 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; when the distance between the fourth magnetic part 153 and the second magnetic part 154 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; therefore, the third magnetic part 151 and the first magnetic part 152, the fourth magnetic part 153 and the second magnetic part 154 can save the user the effort of controlling the expandable mechanism to enter the folded state. When the magnetic attraction force is large enough, the magnetic attraction force 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 folded state.

[0122] 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 approach each other, so that the third magnetic part 151 and the second magnetic part 154 approach each other. When the distance between the third magnetic part 151 and the second magnetic part 154 reaches a certain threshold, the magnetic attraction between the two can provide a bias force for the extension trend of the first folding arm 16 and the second folding arm 17, thereby saving the user the effort of controlling the expandable mechanism to enter the extended state.

[0123] Among them, in the folded state, the third magnetic member 151 and the first magnetic member 152 at least partially overlap, and the fourth magnetic member 153 and the second magnetic member 154 at least partially overlap. For example, the third magnetic member 151 and the first magnetic member 152, and the fourth magnetic member 153 and the second magnetic member 154 are arranged along the first direction y and overlap and abut. They can partially overlap and abut, or they can be set to completely overlap and abut. In the extended state, the third magnetic member 151 and the second magnetic member 154 at least partially overlap. For example, the third magnetic member 151 and the second magnetic member 154 are arranged along the second direction x and overlap and abut. They can partially overlap and abut, or they can be set to completely overlap and abut. This method can improve the stability of the first folding arm 16 and the second folding arm 17 in the folded state and the extended state through magnetic attraction, and improve the stability of the expandable mechanism in different states. In other application scenarios, it is not limited to the abutment between the third magnetic member 151 and the second magnetic member 154 in the extended state, and it is not limited to the abutment between the third magnetic member 151 and the first magnetic member 152, and the fourth magnetic member 153 and the second magnetic member 154 in the folded state. In the extended state, the projections of the third magnetic member 151 and the second magnetic member 154 along the second direction x at least partially overlap to achieve magnetic attraction, and in the folded state, the projections of the third magnetic member 151 and the first magnetic member 152 along the first direction y at least partially overlap to achieve magnetic attraction, and in the folded state, the projections of the fourth magnetic member 153 and the second magnetic member 154 along the first direction y at least partially overlap to achieve magnetic attraction.

[0124] In some embodiments, see Figure 3 The magnetic assembly 15 also includes a fifth magnetic component 155 and a sixth magnetic component 156. The fifth magnetic component 155 is arranged on the side of the bottom component 12 facing the top component 11; the sixth magnetic component 156 is arranged 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 component 155 and the sixth magnetic component 156 are attracted to each other.

[0125] The fifth magnetic component 155 and the sixth magnetic component 156 are configured to be magnetically attracted to each other.

[0126] For example, in the folded state, the fifth magnetic member 155 and the sixth magnetic member 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 member 12 and the top member 11 approach each other, thereby bringing the fifth magnetic member 155 and the sixth magnetic member 156 closer to each other. When the distance between the fifth magnetic member 155 and the sixth magnetic member 156 reaches a certain threshold, the magnetic attraction between the two can provide an attractive biasing force for the folding trend of the first folding arm 16 and the second folding arm 17, thereby saving the user the effort of controlling the expandable mechanism to enter the folded state. When the magnetic attraction is large enough, the magnetic attraction can drive the first folding arm 16 and the second folding arm 17 to automatically fold, thereby saving the user the operational path of controlling the expandable mechanism to enter the folded state.

[0128] In other embodiments, the fifth magnetic component 155 is arranged on the bottom component 12, and the sixth magnetic component 156 is arranged on the top component 11, and in the folded state, the projections of the fifth magnetic component 155 and the sixth magnetic component 156 in the first direction y at least partially overlap, and the projections of the fifth magnetic component 155 and the sixth magnetic component 156 along 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 member 155 and the sixth magnetic member 156 in the arrangement direction do not overlap with the projection of the folding element 13 in the arrangement direction.

[0130] Among them, when the expandable mechanism is in a folded state and the folding component 13 is in a folded state, the projections of the fifth magnetic component 155 and the sixth magnetic component 156 in the first direction y are set not to overlap with the projection of the folding component 13 in the first direction y, which can reduce the interference of the fifth magnetic component 155 and the sixth magnetic component 156 on the folding state of the folding component 13 and can reduce the size of the expandable mechanism in the first direction y.

[0131] In some embodiments, during the switching process of the expandable mechanism between its extended state and its folded state, 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 arrangement can reduce the shaking of the expandable mechanism during state switching.

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

[0134] Specifically, the first and second folding arms 16, 17 are in an extended state to form a support arm that supports the top member 11 and the bottom member 12. The two sets of deformable connectors 14 form two support arms. Because the first spacing is greater than the second spacing, an isosceles trapezoid is formed between the two support arms and the top and bottom members 11, 12. When the first and second folding arms 16, 17 transition from an extended state to a folded state, this isosceles trapezoid reduces the misalignment range of the top member 11 relative to the bottom member 12 in the second direction x, thereby reducing the space occupied by the expandable mechanism during state switching.

[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 part 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 part 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 arrangement 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 second connection points 20 of the two groups of deformable connecting portions 14 move in opposite directions along the vertical direction.

[0139] The folding assembly 13 includes two sets of deformable connecting portions 14. In the extended state, the two sets of deformable connecting portions 14 are spaced apart along the second direction x. The inner and outer sides of the deformable connecting portions 14 can be determined by referring to the inner and outer sides of the first folding arm 16 described above, and will not be further described 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 groups of deformable connection parts 14 are opposite, the first folding arm 16 and the second folding arm 17 of the deformable connection part 14 are folded inward, and the two groups of deformable connection parts 14 are close 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 groups of deformable connection parts 14 are opposite, the first folding arm 16 and the second folding arm 17 of the deformable connection part 14 are folded outward, and the two groups of deformable connection parts 14 move away from each other, and the inner side of the first folding arm 16 abuts against the inner side of the second folding arm 17.

[0141] When the movement directions of the second connection points 20 are in the same direction during state switching, the top component 11 and the bottom component 12 can be relatively misaligned to a greater extent in the second direction x, which increases the space occupied by the expandable mechanism during state switching.

[0142] Therefore, by arranging the second connection points 20 of the two sets of deformable connectors 14 to move in opposite directions, the range of relative misalignment between the top member 11 and the bottom member 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 be switched between an extended state and a folded state via the first foldable arm 16 and the second foldable 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 can be hinged to the bottom part 12 to increase the damping effect during the rotation between the two; the second end 162 of the first folding arm 16 can be hinged to the first end 171 of the second folding arm 17 to increase the damping effect during the rotation between the two; the second end 172 of the second folding arm 17 is hinged to the top part 11 to increase the damping effect during the 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 a folded state to an 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 a folded state to an 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 foldable arm 17 rotates clockwise relative to the top member 11 to switch the expandable mechanism from the folded state to the extended state. In the extended state, the first foldable arm 16 and the second foldable arm 17 are locked together to achieve a fixed relative position, forming a support arm that supports the top member 11 and the bottom member 12. The first limiter is disposed forward of the second foldable arm 17 in the direction of rotation. When the expandable mechanism is already in the extended state, the first limiter prevents the second foldable arm 17 from continuing to rotate clockwise about the third connection point 21 relative to the top member 11. In other words, it prevents the support arm from continuing to rotate clockwise about the third connection point 21 relative to the top member 11, thereby reducing the shaking 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 a folded state to an 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 foldable arm 16 rotates counterclockwise relative to the bottom member 12 to switch the expandable mechanism from a folded state to an extended state. In the extended state, the first foldable arm 16 and the second foldable arm 17 are locked together to achieve a fixed relative position, forming a support arm that supports the top member 11 and the bottom member 12. The second limiter is positioned forward of the first foldable arm 16 in the direction of rotation. When the expandable mechanism is in the extended state, the second limiter prevents the first foldable arm 16 from continuing to rotate counterclockwise about the first connection point 19 relative to the bottom member 12. In other words, it prevents the support arm from continuing to rotate counterclockwise about the first connection point 19 relative to the bottom member 12, thereby reducing the shaking of the support arm and improving the stability of the expandable mechanism in the extended state.

[0149] In some embodiments, a first protrusion may 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 may 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, along the arrangement direction (ie, the first direction y), the top component 11 and the bottom component 12 are at least partially overlapped, 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.

[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 folded state in the direction perpendicular to the arrangement direction (i.e., the second direction x); further, at least part of the edge of the top component 11 abuts at least part of the edge of the bottom component 12, which can reduce the size of the expandable mechanism in the folded state in the arrangement direction of the top component 11 and the bottom component 12 (i.e., the first direction y), thereby improving the miniaturization of the expandable mechanism and enhancing the user experience.

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

[0153] In some embodiments, the folding component 13 is arranged between the top component 11 and the bottom component 12, and a first accommodating groove 30 is provided on the side of the top component 11 facing the bottom component 12, so that when the expandable mechanism is in the folded state, an accommodating space is formed between the top component 11 and the bottom component 12; when the expandable mechanism is in the folded state, the folding component 13 is at least partially received in the accommodating space.

[0154] In this way, the first accommodating groove 30 can be used to accommodate the folding assembly 13, thereby 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 component 13 is arranged between the top component 11 and the bottom component 12, and a second accommodating groove 40 is provided on the side of the bottom component 12 facing the top component 11, so as to form an accommodating space between the top component 11 and the bottom component 12 in the folded state; in the folded state, the folding component 13 is at least partially received in the accommodating space.

[0156] In this way, the second accommodating groove 40 can be used to accommodate the folding assembly 13, thereby 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 the first accommodating groove 30 and the second accommodating groove 40 may be provided.

[0158] For example, the projections of the first accommodating groove 30 and the second accommodating groove 40 in the first direction y completely overlap, or the projections of the notches of the first accommodating groove 30 and the notches of the second accommodating groove 40 in the first direction y completely overlap. In this way, the first accommodating groove 30 and the second accommodating groove 40 can be used 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 assembly 13 is completely stored in the accommodating space.

[0160] In this way, the folding assembly 13 is completely accommodated in the accommodation 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 side wall connected to the first bottom wall 301 on a side facing the bottom member 12. The first annular side wall can form the first receiving groove 30 in an annular shape.

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

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

[0164] The two end surfaces may be partially or completely in contact with each other. When they are completely in contact with each other, the first and second receiving grooves 30 and 40 can form a closed accommodation space in the folded state, and the folding assembly 13 can be accommodated in the accommodation space. This can improve the aesthetics of the expandable mechanism in the folded state, reduce the impact of external interference on the folding assembly 13 in the folded state, increase the service life of the folding assembly 13, and reduce the thickness of the expandable mechanism along the first direction y.

[0165] In other embodiments, in the folded state, the end surface 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, this can also form a closed storage space. In other embodiments, in the folded state, the end surface 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, this can also form a closed storage space.

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

[0167] In some embodiments, the outer side surface of the first annular sidewall is provided with a first edge groove 50. In some embodiments, the outer side 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, thereby improving the convenience of opening the expandable mechanism from a folded state to an extended state, and improving the convenience of use for users.

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

[0170] In some embodiments, the projections of the bottom component 12 and the top component 11 in the first direction y completely overlap, and the two groups of deformable connecting parts 14 of the folding component 13 are symmetrically arranged about the central axis of the projections.

[0171] In some embodiments, the bottom member 12 and the top member 11 are of the same shape. For example, their projections in the first direction y are both circular, square, diamond, etc. Circular shapes can improve operational convenience and enhance aesthetics.

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

[0173] In some embodiments, the third magnetic part 151, the first magnetic part 152, the fourth magnetic part 153, the second magnetic part 154, the fifth magnetic part 155, the sixth magnetic part 156 and other magnetic parts can be set on the surface of the corresponding parts (for example, the first folding arm 16, the second folding arm 17, the top part 11, and the bottom part 12), or can be embedded in the parts in a sealed or semi-enclosed 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 further include three or more deformable connecting parts 14, which can improve the stability of the expandable mechanism in the extended state.

[0175] In other embodiments, the deformable connecting portion 14 may further include more than three folding arms.

[0176] In some embodiments, the top component 11 may be fixed to the back of the mobile phone. This application is described by taking the fixing of the bottom component 12 to the back of the mobile phone as an example.

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

[0178] In some embodiments, the bottom member 12 is used to connect to an electronic device or a protective case 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 through a snap connection, a magnetic connection, etc., which is not limited here. In some embodiments, the deformable connection portion 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 above two states; in some embodiments, the deformable connection portion 14 includes a foldable leg, and the foldable leg includes a plurality of segments (i.e., folding arms) and a hinge located between two adjacent segments. The hinge serves as a hinge point, and the segments can rotate around the hinge to achieve a folding function. Depending on the structural inconsistency of the locking portion (such as the first locking component 22, the second locking component 23, or the third locking component 24 in the following embodiments, 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 connecting portion 14 to maintain an extended state and a compressed state, and also includes a mechanism for locking the top component 11 and the bottom component 12 closed so that the expandable mechanism is in a folded state. For example, in a specific embodiment, the foldable leg includes a first segment (equivalent to the second folding arm 17), a second segment (equivalent to the second portion 164 of the first folding arm 16), and a third segment (equivalent to the first portion 163 of the first folding arm 16); the bottom component 12 includes a first surface facing the electronic device / protective case and a second surface opposite thereto; the first end of the third segment (equivalent to the first end 161 of the first folding arm 16) is rotatably mounted on the first surface of the bottom component 12, the second segment is parallel to the third segment and the second segment is mounted on the third segment; the second end of the first segment (equivalent to the second end of the second folding arm 17) is rotatably mounted on the first surface of the bottom component 12 The end 172) is rotatably mounted on the second surface of the top component 11; the third segment is mounted with a third magnet (equivalent to the first magnetic component 152), and the second segment is mounted with a second magnet (equivalent to the second magnetic component 154); the first segment is mounted with a first magnet (equivalent to the third magnetic component 151); a fourth magnet (equivalent to the fourth magnetic component 153) is also mounted on the first surface of the bottom component 12; when the expandable mechanism is in an extended state, the first magnet and the second magnet are attracted to each other; when the expandable mechanism is in a folded state, the first magnet and the third magnet are attracted to each other, the third magnet and the fourth magnet are attracted to each other, and the fifth magnet and the sixth magnet are attracted to each other. It can be 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 connection part 14 to maintain the extended state and the compressed state; 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 a folded state.

[0180] In other embodiments, the magnetic component 15 may also be replaced by other detachable components, such as a lock, such as a button component; it may also be a Velcro component, reusable adhesive, etc., as long as it can achieve the above-mentioned locking function.

[0181] Among them, in the embodiment where the magnetic component 15 is used as the locking component, the magnetic component 15 also plays a biasing role. According to the actual folding angle of the foldable leg, the magnetic component 15 can make the expandable mechanism biased to be in an extended state or a folded state, and can also be set so that the expandable mechanism only includes three states: extended state, semi-folded state and folded state.

[0182] In other embodiments, the first and second segments may be integrally formed, with the foldable legs being foldable via pleats, allowing the first and second segments to be rotatably connected. The pleats can be formed by reducing the thickness of the material at a localized location and forming the material into a pleated structure. When the first and second segments are integrally formed, the first segment is rotatably connected to the third segment.

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

[0184] In other embodiments, the foldable legs may be made of flexible materials, such as flexible resin, flexible fiber, leather, or other flexible composite materials. The materials forming the foldable legs may be multi-layered and include a magnetic layer. The magnetic layer may be a magnet, located 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 the second end thereof is a free end; the first end of the first segment is rotatably mounted on the middle upper position of the third segment, and the second end thereof 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 may be one or more. When the number of the foldable leg is one, in order to improve the stability of the expandable mechanism in the extended state, a rotational connection between the foldable leg and the top part 11 and the bottom part 12 may be provided through a hinge with a certain damping.

[0187] In other embodiments, the first surface of the top member 11 is provided with an aramid fiber layer for decoration.

[0188] In other embodiments, the second surface of the bottom member 12 is provided with a magnet, which can be used for magnetic docking with a corresponding area such as a magnetic ring of a smart device such as a mobile phone.

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

[0190] In some embodiments, a first groove (equivalent to a first accommodating groove or a second accommodating 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 legs, 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. Alternatively, a first groove may 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 the first edge groove or the second edge groove) is provided on the edge of the top member 11 or the bottom member 12 to facilitate the user to separate the top member 11 and the bottom member 12. Alternatively, a second groove may be provided on the edge of both the top member 11 and the bottom member 12.

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

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

[0194] For example, the shape of the avoidance groove 174 corresponds to the shape of the first folding arm 16, and when the expandable mechanism is in the folded state, the avoidance 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 avoidance groove 174.

[0195] The specific implementation and extension of this embodiment can be found in the following embodiments.

[0196] In some embodiments, the avoidance 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 avoidance groove 174 may fully or partially accommodate the second folding arm 17. Specific implementations 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 is a "U"-shaped structure, including an avoidance groove 174 and a connecting portion 173; the second end 162 of the first folding arm 16 is rotatably connected to the upper end of the connecting portion 173; when the expandable mechanism is in its extended state, the first folding arm 16 is located on the relative inner side of the second folding arm 17, and the outer side surface of the first folding arm 16 is partially in contact with the inner side surface of the second folding arm 17, and the first folding arm 16 and the second folding arm 17 are arranged in parallel or substantially in parallel; when the expandable mechanism is in its folded state, the first folding arm 16 is fully or partially accommodated in the avoidance groove 174 of the second folding arm 17, and the first folding arm 16 and the second folding arm 17 are arranged in the same plane or substantially in the same plane.

[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] The specific implementation and extension of this embodiment can be found in the following embodiments.

[0200] In some embodiments, see Figures 8 to 15 The magnetic assembly 15 includes at least two magnetic members 157 , one magnetic member 157 is located at the connection portion 173 of the second folding arm 17 , and the other magnetic member 157 is located on the first folding arm 16 and close to the second end 162 of the first folding arm 16 .

[0201] The specific implementation and extension of this embodiment can be found in the following embodiments.

[0202] Example Group 2

[0203] In some embodiments, as Figures 1 to 7 As shown, the expandable mechanism includes a top part 11, a bottom part 12, a folding assembly 13, and a first locking assembly 22. The folding assembly 13 is connected to the top part 11 and the bottom part 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 implementations of the top component 11 , the bottom component 12 , and the folding assembly 13 in this embodiment may refer to the above embodiments.

[0205] The first locking assembly 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 assembly 13 is in the extended state, so that the expandable mechanism is locked in the extended state.

[0206] This arrangement can improve the stability of the stretched state. For example, the first locking component 22 includes one or more sets of magnetic parts, Velcro or locking parts, which are not specifically limited.

[0207] Among them, the specific position of the first locking component 22 is not limited. For example, one or more groups of magnetic parts, Velcro or fasteners are arranged on the folding component 13 between the top component 11 and the bottom component 12, and the state of the folding component 13 can be limited to indirectly fix the folding component 13 in an extended state; for another example, one or more groups of magnetic parts, Velcro or fasteners are respectively arranged on the folding component 13 and the top component 11, or respectively arranged on the folding component 13 and the bottom component 12, for fixing the folding component 13 in an extended state, etc.

[0208] In the above manner, the expandable mechanism can be switched between the extended state and the folded state through the folding component 13; further, the first locking component 22 can improve the stability of the expandable mechanism in the extended state.

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

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

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

[0212] This arrangement can improve the stability of the folded state. For example, the second locking component 23 includes one or more sets of magnetic parts, Velcro or locking parts, which are not specifically limited.

[0213] Among them, the specific position of the second locking component 23 is not limited. For example, one or more groups of magnetic parts, Velcro or fasteners are arranged on the folding component 13 between the top component 11 and the bottom component 12, for fixing the folding component 13 in a folded state; for another example, one or more groups of magnetic parts, Velcro or fasteners are respectively arranged on the folding component 13 and the top component 11, or respectively arranged on the folding component 13 and the bottom component 12, for fixing the folding component 13 in a folded state; for another example, one or more groups of magnetic parts, Velcro or fasteners are respectively arranged on the bottom component 12 and the top component 11, for fixing the bottom component 12 and the top component 11 in the folded state to maintain their relative positions unchanged, so that the expandable mechanism can be locked in the folded state, etc.

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

[0215] When the first locking member 221 and the second locking member 222 are in the connected state, the folding assembly 13 is kept in its extended state. The user can control the folding assembly 13 to exit the extended state by detaching the first locking member 221 and the second locking member 222 so that the two are in the separated state.

[0216] In some embodiments, 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, thereby maintaining the folding assembly in its folded state. In one application scenario, the third locking component 231 is the fourth magnetic member 153 in the above-mentioned embodiment, and the fourth locking component 232 is the second magnetic member 154 in the above-mentioned embodiment.

[0217] When the third locking member 231 and the fourth locking member 232 are connected, the folding assembly 13 is kept in its folded state. The user can control the folding assembly 13 to exit the folded state by detaching the third locking member 231 and the fourth locking member 232 so that they are in a separated state.

[0218] The user can disassemble and separate the first locking part 221 and the second locking part 222, and the user can disassemble and separate the third locking part 231 and the fourth locking part 232, which means that the user can apply a force to separate the two locking parts, and the two locking parts are separated under the force, such as the first locking part 221 and the second locking part 222 are separated, or the third locking part 231 and the fourth locking part 232 are separated.

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

[0221] In a more specific embodiment, for example, the third locking component 231 is a first hook and loop fastener, and the fourth locking component 232 is a second hook and loop 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 disposed opposite each other and abut and lock. The first hook and loop fastener is disposed on the side of the top component 11 facing the bottom component 12, and the second hook and loop fastener is correspondingly disposed on the side of the folding assembly 13 near the top component 11 to cooperate with the first hook and loop fastener.

[0222] In some application scenarios, the second locking component 23 can also be composed of a magnetic component or a locking component. The Velcro group can be replaced by a magnetic component group, a locking component group, etc.

[0223] In some application scenarios, the second locking component 23 can also be set to include multiple groups of third locking parts 231 and fourth locking parts 232. For example, the second locking component 23 includes two correspondingly arranged and lockably connected magnetic parts and two correspondingly arranged and lockably connected Velcros.

[0224] For another example, the second locking assembly 23 includes two correspondingly disposed and lockably connected locking members. In some application scenarios, when the second locking assembly 23 includes locking members, the locking members may include a first locking portion disposed on the top member 11 or the bottom member 12 and a second locking portion disposed on the folding assembly 13.

[0225] In some embodiments, the folding component 13 includes a deformable connection portion 14, and the deformable 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 a position on the first folding arm 16 close 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 component 11.

[0226] The specific analysis and expansion of this embodiment can refer to the above embodiments, and the specific implementation of the deformable connecting portion 14, the first folding arm 16, and the second folding arm 17 can refer to the above embodiments.

[0227] The manner 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 special locking mechanism, such as the first locking assembly 22, may be provided.

[0228] In some embodiments, in the extended state, along the first direction y, the first folding arm 16 and the second folding arm 17 may be arranged in parallel or approximately in parallel, or may be arranged non-parallel, which is not specifically limited.

[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 are overlapped and abutted 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 in the folded state and achieve miniaturization.

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

[0232] In one application scenario, the projections of the top component 11 and the bottom component 12 in the first direction y completely overlap, and the two groups 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 distribution of the force exerted by the deformable connection part 14 on the top part 11 and the bottom part 12 when 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 component 13 on the top part 11 and the bottom part 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 arranged close to the bottom part 12 relative to the second part 164; when the deformable connection 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 remain parallel or approximately parallel; when the deformable connection 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 remain parallel or approximately parallel.

[0235] The specific analysis and extension of this embodiment can refer to the above embodiment, and the specific implementation of the first part 163 and the second part 164 can refer to the above embodiment.

[0236] In some embodiments, the first folding arm 16 and the second folding arm 17 are both sheet-like structures, and the rotational connection position of the second folding arm 17 and the first folding arm 16 divides the outer side surface of the first folding arm 16 into a first part 163 and a second part 164; wherein, the first part 163 is arranged close to the bottom part 12 relative to the second part 164; when the deformable connection part 14 is in its extended state, the second part 164 of the outer side surface of the first folding arm 16 abuts against the inner side surface of the second folding arm 17, in this state, the first folding arm 16 and the second folding arm 17 remain parallel or approximately parallel; when the deformable connection part 14 is in its folded state, the first part 163 of the outer side surface of the first folding arm 16 fits against the outer side surface of the second folding arm 17; in this state, the first folding arm 16 and the second folding arm 17 remain parallel or approximately parallel.

[0237] The specific analysis and extension of this embodiment can refer to the above embodiments.

[0238] In some embodiments, see Figures 3 to 7The deformable connection portion 14 also includes an extension arm 18, which is arranged at a position of the first folding arm 16 close to the second end 162 of the first folding arm 16, and is maintained parallel or approximately parallel to the first folding arm 16; when the deformable connection portion 14 is 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 close to the top component 11 and the first end 161 of the first folding arm 16, and the inner side of the second folding arm 17 is at least partially in contact with the outer side of the extension arm 18, so that the first folding arm 16 and the second folding arm 17 are maintained in parallel, or approximately in parallel.

[0239] The specific analysis and expansion of this embodiment can refer to the above embodiment; the specific implementation of the extension arm 18 can refer to the above embodiment.

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

[0241] The specific analysis and expansion of this embodiment can refer to the above embodiments. Among them, when both sets of deformable connecting parts 14 are in a fully extended state, the expandable mechanism is in an extended state, that is, the expandable mechanism is in a fully extended state; when both sets of deformable connecting parts 14 are in a fully contracted state, the expandable mechanism is in a folded state, that is, the expandable mechanism is in a fully contracted 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 semi-folded state. When one deformable connecting part 14 is in an extended state and one deformable connecting part 14 is in other incompletely extended states, the expandable mechanism is in a semi-folded state.

[0242] This setting can make the states of the two groups of deformable connecting parts 14 asynchronous, increase the state diversity of the expandable mechanism, and switch between the semi-folded state, the folded state, and the extended state to adjust the orientation of the mobile phone screen, thereby improving the user experience.

[0243] 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 can be hinged to the bottom part 12 to increase the damping effect during the rotation between the two; the second end 162 of the first folding arm 16 can be hinged to the first end 171 of the second folding arm 17 to increase the damping effect during the rotation between the two; the second end 172 of the second folding arm 17 is hinged to the top part 11 to increase the damping effect during the rotation between the two, so that the expandable mechanism can be maintained 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 a folded state to an 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 foldable arm 17 rotates clockwise relative to the top member 11 to switch the expandable mechanism from the folded state to the extended state. In the extended state, the first foldable arm 16 and the second foldable arm 17 are locked together to achieve a fixed relative position, forming a support arm that supports the top member 11 and the bottom member 12. The first limiter is disposed forward of the second foldable arm 17 in the direction of rotation. When the expandable mechanism is already in the extended state, the first limiter prevents the second foldable arm 17 from continuing to rotate clockwise about the third connection point 21 relative to the top member 11. In other words, it prevents the support arm from continuing to rotate clockwise about the third connection point 21 relative to the top member 11, thereby reducing the shaking 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 a folded state to an 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 foldable arm 16 rotates counterclockwise relative to the bottom member 12 to switch the expandable mechanism from a folded state to an extended state. In the extended state, the first foldable arm 16 and the second foldable arm 17 are locked together to achieve a fixed relative position, forming a support arm that supports the top member 11 and the bottom member 12. The second limiter is positioned forward of the first foldable arm 16 in the direction of rotation. When the expandable mechanism is in the extended state, the second limiter prevents the first foldable arm 16 from continuing to rotate counterclockwise about the first connection point 19 relative to the bottom member 12. In other words, it prevents the support arm from continuing to rotate counterclockwise about the first connection point 19 relative to the bottom member 12, thereby reducing the shaking of the support arm and improving the stability of the expandable mechanism in the extended state.

[0248] In some embodiments, a first protrusion may 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 may 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 assembly 22 includes a third magnetic component 151 and a second magnetic component 154. The third magnetic component 151 is arranged on the second folding arm 17; the second magnetic component 154 is arranged on the second part 164 of the first folding arm 16 (in other embodiments, the second magnetic component 154 can also be arranged on the extension arm 18); when the deformable connecting portion 14 is in its extended state, the second magnetic component 154 is attracted to the third magnetic component 151.

[0250] The magnetic attraction between the third magnetic member 151 and the second magnetic member 154 can lock the first folding arm 16 and the second folding arm 17 in their extended state, so that the deformable connecting portion 14 is in its extended state. The specific implementation of the third magnetic member 151 and the second magnetic member 154 can refer to the above embodiment.

[0251] In some embodiments, the second locking assembly 23 includes a first magnetic member 152 , which is disposed on the first portion 163 of the first folding arm 16 . When the deformable connection portion 14 is in its folded state, the first magnetic member 152 and the third magnetic member 151 are attracted to each other.

[0252] The magnetic attraction between the first magnetic member 152 and the third magnetic member 151 locks the first and second folding arms 16 and 17 in their folded state, thereby maintaining the deformable connection portion 14 in its folded state. In other words, in this embodiment, the second locking assembly 23 and the first locking assembly 22 cooperate to lock the expandable mechanism in its folded state. For the specific implementation of the first and third magnetic members 152 and 151, please refer to the above embodiments.

[0253] In some embodiments, see Figure 3 The second locking assembly 23 includes a fourth magnetic member 153, which is provided on the side of the bottom member 12 facing the top member 11; when the deformable connecting portion 14 is in its folded state, the second magnetic member 154 is attracted to the fourth magnetic member 153.

[0254] The magnetic attraction between the second magnetic member 154 and the fourth magnetic member 153 enables the base member 12 and the first folding arm 16 to be locked together, thereby maintaining the expandable mechanism in its folded state. In other words, in this embodiment, the second locking assembly 23 and the first locking assembly 22 cooperate to lock the expandable mechanism in its folded state. The specific implementation of the second magnetic member 154 and the fourth magnetic member 153 can be found in the above embodiments.

[0255] In some embodiments, see Figure 3 The second locking assembly 23 includes a fourth magnetic member 153 and a second magnetic member 154. The fourth magnetic member 153 is arranged on the side of the bottom member 12 facing the top member 11; the second magnetic member 154 is arranged on the second portion 164 of the first folding arm 16 (in other embodiments, the second magnetic member 154 can also be arranged on the extension arm 18). When the expandable mechanism is in its folded state, the fourth magnetic member 153 and the second magnetic member 154 are attracted to each other.

[0256] The magnetic attraction between the second magnetic member 154 and the fourth magnetic member 153 enables the base member 12 and the first folding arm 16 to be locked together, thereby maintaining the expandable mechanism in its folded state. In other words, in this embodiment, the expandable mechanism is locked in its folded state using the second locking assembly 23. The specific implementations of the second magnetic member 154 and the fourth magnetic member 153 can be found in the above embodiments.

[0257] In some embodiments, the second locking assembly 23 may include a first magnetic member 152 and a third magnetic member 151, the first magnetic member 152 is arranged on the first part 163 of the first folding arm 16; the third magnetic member 151 is arranged on the second folding arm 17; when the deformable connecting portion 14 is in its folded state, the first magnetic member 152 and the third magnetic member 151 are attracted to each other.

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

[0259] The magnetic attraction between the fifth and sixth magnetic members 155, 156 enables the bottom and top members 12, 11 to be locked together, thereby maintaining the expandable mechanism in its folded state. In other words, in this embodiment, the expandable mechanism is locked in its folded state using the third locking assembly 24. The specific implementations of the fifth and sixth magnetic members 155, 156 can be found in the aforementioned embodiments.

[0260] In other embodiments, the third locking component 24 may also be comprised of hook-and-loop strips. For example, the third locking component 24 may include a first hook-and-loop strip and a second hook-and-loop strip. In the folded state, the projections of the first and second hook-and-loop strips along the first direction y at least partially overlap, and the first and second hook-and-loop strips are positioned opposite each other and abut and lock. The first hook-and-loop strip is positioned on the side of the top member 11 facing the bottom member 12, and the second hook-and-loop strip is positioned on the side of the bottom member 12 facing the top member 11 to engage with the first hook-and-loop strip.

[0261] In some application scenarios, the third locking assembly 24 may also be composed of a locking member. For example, the locking member may include a first locking portion provided on the top member 11 or the bottom member 12 and a second locking portion provided on the folding assembly 13.

[0262] In some embodiments, 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 member 11 and the bottom member 12. The deformable connecting parts 14 have at least an extended state and a folded state, which allows the top member 11 and the bottom member 12 to move away from or closer to each other, so that the expandable mechanism has at least an extended state and a folded state.

[0263] The specific analysis and extension of this embodiment can refer to the above embodiments.

[0264] In some embodiments, during the switching process of the expandable mechanism between its extended state and its folded state, 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 arrangement can reduce the shaking of the expandable mechanism during the state switching process. The specific analysis and extension of this embodiment can refer to the above embodiment.

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

[0267] The specific analysis and extension of this embodiment can 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 part 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 part 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] The specific analysis and extension of this embodiment can refer to the above embodiments.

[0270] In some embodiments, see Figure 4 In the folded state of the expandable mechanism, along the arrangement direction (ie, the first direction y), the top component 11 and the bottom component 12 are at least partially overlapped, 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.

[0271] The specific analysis and extension of this embodiment can refer to the above embodiments.

[0272] In some embodiments, the folding component 13 is arranged between the top component 11 and the bottom component 12, and a first accommodating groove 30 is provided on the side of the top component 11 facing the bottom component 12, so that when the expandable mechanism is in the folded state, an accommodating space is formed between the top component 11 and the bottom component 12; when the expandable mechanism is in the folded state, the folding component 13 is at least partially received in the accommodating space.

[0273] The detailed analysis and extension of this embodiment can refer to the above embodiment. The detailed implementation of the first receiving groove 30 can refer to the above embodiment.

[0274] In some embodiments, the folding component 13 is arranged between the top component 11 and the bottom component 12, and a second accommodating groove 40 is provided on the side of the bottom component 12 facing the top component 11, so as to form an accommodating space between the top component 11 and the bottom component 12 in the folded state; in the folded state, the folding component 13 is at least partially received in the accommodating space.

[0275] The detailed analysis and extension of this embodiment can refer to the above embodiment. The detailed implementation of the second receiving groove 40 can refer to the above embodiment.

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

[0277] In some embodiments, in the folded state, the folding assembly 13 is completely stored in the accommodation space. Detailed analysis and extension of this embodiment can refer to the above embodiments.

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

[0279] The detailed analysis and extension of this embodiment can refer to the above embodiment. The detailed implementation of the first annular sidewall, the second annular sidewall, the first edge groove 50 and the second edge groove 60 can refer to the above embodiment.

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

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

[0282] For example, the shape of the avoidance groove 174 corresponds to the shape of the first folding arm 16, and when the expandable mechanism is in the folded state, the avoidance 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 avoidance groove 174.

[0283] The specific implementation and extension of this embodiment can be found in the following embodiments.

[0284] In some embodiments, the avoidance 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 avoidance groove 174 may fully or partially accommodate the second folding arm 17. Specific implementations 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 is a "U"-shaped structure, including an avoidance groove 174 and a connecting portion 173; the second end 162 of the first folding arm 16 is rotatably connected to the upper end of the connecting portion 173; when the expandable mechanism is in its extended state, the first folding arm 16 is located on the relative inner side of the second folding arm 17, and the outer side surface of the first folding arm 16 is partially in contact with the inner side surface of the second folding arm 17, and the first folding arm 16 and the second folding arm 17 are arranged in parallel or substantially in parallel; when the expandable mechanism is in its folded state, the first folding arm 16 is fully or partially accommodated in the avoidance groove 174 of the second folding arm 17, and the first folding arm 16 and the second folding arm 17 are arranged in the same plane or substantially in the same plane.

[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] The specific implementation and extension of this embodiment can be found in the following embodiments.

[0288] In some embodiments, see Figures 8 to 15The magnetic assembly 15 includes at least two magnetic members 157, one magnetic member 157 is located at the connection portion 173 of the second folding arm 17, and the other magnetic member 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 member 157 includes a third magnetic member 151 and a first magnetic member 152. The third magnetic member 151 is installed at the connection portion 173 of the second folding arm 17, and the first magnetic member 152 is installed at 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 member 151 and the first magnetic member 152.

[0289] The specific implementation and extension of this embodiment can be found in the following embodiments.

[0290] Example Group 3

[0291] In this embodiment, if Figures 8 to 10 As shown, the expandable mechanism includes a top part 11, a bottom part 12 and a deformable connection part 14 connected between the top part 11 and the bottom part 12; similar to embodiment group 1 and embodiment group 2, the expandable mechanism is changed between the extended state and the folded state by the deformation of the deformable connection part 14.

[0292] In this embodiment, if Figures 8 to 10 As shown, the deformable connection 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 part 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 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 part 11; the first folding arm 16 or the second folding arm 17 moves or rotates 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 connection part 14 can change between the extended state and the folded state, thereby enabling the expandable mechanism to change between the extended state and the folded state.

[0293] In this embodiment, if Figures 8 to 10 As shown, the second folding arm 17 is provided with an avoidance groove 174, and the shape of the avoidance groove 174 corresponds to the shape of the first folding arm 16. When the expandable mechanism is in the folded state, the avoidance 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 avoidance groove 174.

[0294] In some embodiments, the avoidance 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 avoidance groove 174 may fully or partially accommodate the second folding arm 17 .

[0295] In a specific embodiment, the second folding arm 17 is a "U"-shaped structure, and the second end 172 of the second folding arm 17 is movably connected to the top member 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 member 12, and 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 movably connected position can be a rotational connection achieved by a hinge structure, or the rotatable connection position can be a movably connected position achieved by a flexible connecting material.

[0296] In some embodiments, the expandable mechanism includes a locking component; the locking component can lock the expandable mechanism in the extended state; the locking component can also lock the expandable mechanism in the folded state; preferably, it can include multiple groups of locking components, one of which can lock the expandable mechanism in the extended state, and another group of which can lock the expandable mechanism in the folded state; preferably, each group of locking components can include two matching locking components, the two locking components can be located at the first folding arm 16 and the second folding arm 17 respectively; the two locking components can also be located at the first folding arm 16 and the bottom part 12 respectively; the two locking components can also be located at the second folding arm 17 and the bottom part 12 respectively; the expandable mechanism is locked in the extended state or the folded state by locking two of the locking components in a group of the locking components; it can be understood that the locking component can be combined and locked by structural locking, for example, it can be a button locking component, for example, it can also be Velcro; the locking component can be locked by adhesive bonding, for example, it can be tape; the locking component can be locked by magnetic attraction, for example, the locking component can be a magnetic locking part.

[0297] In some embodiments, the expandable mechanism includes at least two magnetic members 157, one magnetic member 157 is provided at the connecting portion 173 of the second folding arm 17, and the other magnetic member 157 is provided at a position near the second end 162 of the first folding arm 16; 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 close to 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 members 157 are attracted to lock the expandable mechanism in the extended state.

[0298] In some embodiments, the expandable mechanism includes at least two magnetic parts 157, one magnetic part 157 is installed on the first folding arm 16, and the other magnetic part 157 is installed on the bottom part 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 surface of the bottom part 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 surface of the top part 11; at this time, the two magnetic parts 157 are magnetically attracted to lock the expandable mechanism in the extended state.

[0299] In some embodiments, the expandable mechanism includes at least two magnetic parts 157, one magnetic part 157 is installed on the second folding arm 17, and the other magnetic part 157 is installed on the bottom part 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 surface of the bottom part 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 surface of the top part 11; at this time, the two magnetic parts 157 are magnetically attracted to lock the expandable mechanism in the folded state.

[0300] In some embodiments, the expandable mechanism includes three magnetic parts 157, namely a first magnetic part 152, a third magnetic part 151 and a fourth magnetic part 153. The first magnetic part 152 is installed on the first folding arm 16; the third magnetic part 151 is installed on the connecting part 173 of the second folding arm 17, and the fourth magnetic part 153 is installed on the bottom part 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 surface of the bottom part 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 surface of the top part 11; at this time, the first magnetic part 152 and the third magnetic part 151 are attracted to lock 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 surface of the bottom member 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 surface of the top member 11; at this time, the first magnetic member 152 and the fourth magnetic member 153 are attracted to each other, locking the expandable mechanism in the folded state. It is understood that, depending on the position of the fourth magnetic member 153, the third magnetic member 151 and the fourth magnetic member 153 may also be attracted to each other in the folded state.

[0301] In some embodiments, the magnetic member 157 includes a fifth magnetic member 155 and a sixth magnetic member 156, the fifth magnetic member 155 is arranged on the side of the bottom member 12 facing the top member 11; the sixth magnetic member 156 is arranged on the side of the top member 11 facing the bottom member 12; when the expandable mechanism is in its folded state, the fifth magnetic member 155 and the sixth magnetic member 156 are attracted to lock the expandable mechanism in the folded state.

[0302] In some embodiments, as Figure 8 or Figure 10 As shown, the cross-section of the avoidance groove 174 is in a stepped shape, so that the avoidance groove 174 forms a first area with a larger area and a second area with a smaller area; correspondingly, the outer side surface of the first folding arm 16 also has a boss corresponding to the cross-sectional shape of the avoidance groove 174; when the expandable mechanism is in a folded state, the first folding arm 16 is embedded in the first area of ​​the avoidance groove 174, and the boss is embedded in the second area of ​​the avoidance groove 174; the above structural design serves to limit the first folding arm 16.

[0303] Example Group 4

[0304] In this embodiment, if Figures 11 to 15As shown, the expandable mechanism includes a top part 11, a bottom part 12 and a deformable connection part 14 connected between the top part 11 and the bottom part 12; similar to embodiment group 1 and embodiment group 2, the expandable mechanism is changed between the extended state and the folded state by the deformation of the deformable connection part 14.

[0305] In this embodiment, if Figures 11 to 15 As shown, the deformable connection 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 part 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 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 part 11; the first folding arm 16 or the second folding arm 17 moves or rotates 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 connection part 14 can change between the extended state and the folded state, thereby enabling the expandable mechanism to change between the extended state and the folded state.

[0306] In this embodiment, if Figures 11 to 15 As shown, the second folding arm 17 is provided with an avoidance groove 174, and the shape of the avoidance groove 174 corresponds to the shape of the first folding arm 16. When the expandable mechanism is in the folded state, the avoidance 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 avoidance groove 174.

[0307] In some embodiments, the avoidance 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 avoidance groove 174 may fully or partially accommodate the second folding arm 17 .

[0308] In a specific embodiment, Figures 11 to 15As shown, the second folding arm 17 is a "U"-shaped structure, and the second end 172 of the second folding arm 17 is movably connected to the top member 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 member 12, and 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 movably connected position can be a hinge structure to achieve a rotational connection, or the rotatable connection position can be a movably connected position using 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 the inner side, the space between the second folding arm 17 and the other second folding arm 17 is called the outer side, and the surface of the second folding arm 17 facing the outer side is the outer side; 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 the inner side, the space between the first folding arm 16 and the other first folding arm 16 is called the outer side, and the surface of the first folding arm 16 facing the outer side is the outer side; preferably, in the extended state, as Figure 11 As shown, the outer side surface of the first folding arm 16 is in contact with the inner side surface of the second folding arm 17; in the above design, when the expandable mechanism is folded, the deformable connecting portion 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 portions 14 are folded in opposite directions, that is, toward the outside.

[0309] In some embodiments, the expandable mechanism includes a locking component; the locking component can lock the expandable mechanism in the extended state; the locking component can also lock the expandable mechanism in the folded state; preferably, it can include multiple groups of locking components, one of which can lock the expandable mechanism in the extended state, and another group of which can lock the expandable mechanism in the folded state; preferably, each group of locking components can include two matching locking components, the two locking components can be located at the first folding arm 16 and the second folding arm 17 respectively; the two locking components can also be located at the first folding arm 16 and the bottom part 12 respectively; the two locking components can also be located at the second folding arm 17 and the bottom part 12 respectively; the expandable mechanism is locked in the extended state or the folded state by locking two of the locking components in a group of the locking components; it can be understood that the locking component can be combined and locked by structural locking, for example, it can be a button locking component, for example, it can also be Velcro; the locking component can be locked by adhesive bonding, for example, it can be tape; the locking component can be locked by magnetic attraction, for example, the locking component can be a magnetic locking part.

[0310] In some embodiments, the expandable mechanism includes at least two magnetic members 157, one magnetic member 157 is provided at the connecting portion 173 of the second folding arm 17, and the other magnetic member 157 is provided at a position near the second end 162 of the first folding arm 16; 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 members are attracted to lock the expandable mechanism in the extended state. When the expandable mechanism is converted to the folded state, due to the folding of the two deformable connecting portions 14, the two magnetic members 157 move in a direction away from the center of the expandable mechanism, so that after the expandable mechanism is folded, the distance between the magnetic member 157 on one deformable connecting portion 14 and the magnetic member 157 on the other deformable connecting portion 14 increases compared to the extended state. Furthermore, in the folded state, a sufficiently large distance is formed between the magnetic member 157 on one deformable connecting portion 14 and the magnetic member 157 on the other deformable connecting portion 14 so that the magnetic member 157 on the deformable connecting portion 14 does 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 in the electronic product, and the magnetic flux of the magnetic field has a more obvious effect on the efficiency of wireless fast charging. If there is a large component with a magnetic field between the wireless fast charging module and the wireless fast charging device in the electronic product, the wireless fast charging efficiency will be reduced. Therefore, the magnetic part 157 on one of the deformable connecting parts 14 and the magnetic part 157 on the other deformable connecting part 14 described in this embodiment form a sufficiently large distance between them. It can be said that in the folded state, along the first direction y, the projections of the magnetic parts 157 on the two deformable connecting parts 14 do not overlap or partially overlap with the projections of the wireless fast charging module or wireless fast charging device in the electronic product, so as to avoid the magnet affecting the wireless charging efficiency of the electronic product.

[0311] In some embodiments, the expandable mechanism includes three magnetic parts 157, namely a first magnetic part 152, a third magnetic part 151 and a fourth magnetic part 153. The first magnetic part 152 is installed on the first folding arm 16; the third magnetic part 151 is installed on the connecting part 173 of the second folding arm 17, and the fourth magnetic part 153 is installed on the bottom part 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 surface of the bottom part 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 surface of the top part 11; at this time, the first magnetic part 152 and the third magnetic part 151 are attracted to lock the expandable mechanism in the extended state. 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 fit with the upper end surface of the bottom component 12; the inner surface of the second folding arm 17 and the outer surface of the first folding arm 16 fit with the lower end surface of the top component 11; at this time, the first magnetic component 152 and the fourth magnetic component 153 are attracted to lock the expandable mechanism in the folded state. It can be understood that, depending on the position of the fourth magnetic component 153, the third magnetic component 151 and the fourth magnetic component 153 may also be attracted to each other in the folded state. Along the first direction y, the projection of the fourth magnetic component 153 does not overlap or partially overlap with the projection of the wireless fast charging module or wireless fast charging device in the electronic product, so as to avoid the fourth magnetic component 153 affecting the wireless charging efficiency of the electronic product.

[0312] In some embodiments, the device includes a fifth magnetic member 155 and a sixth magnetic member 156. The fifth magnetic member 155 is disposed on the side of the bottom member 12 facing the top member 11; the sixth magnetic member 156 is disposed on the side of the top member 11 facing the bottom member 12. When the expandable mechanism is in its folded state, the fifth magnetic member 155 and the sixth magnetic member 156 engage, locking the expandable mechanism in the folded state. Along the first direction y, the projections of the fifth magnetic member 155 and the sixth magnetic member 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, thereby preventing the fifth magnetic member 155 and the sixth magnetic member 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 smaller 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 and the top part 11 and the bottom part 12 together form an isosceles trapezoidal structure, thereby 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, as Figure 11 As shown, the cross-section of the avoidance groove 174 is in a stepped shape, so that the avoidance groove 174 forms a first area with a larger area and a second area with a smaller area; correspondingly, the inner side surface of the first folding arm 16 also has a boss corresponding to the cross-sectional shape of the avoidance groove 174; when the expandable mechanism is in a folded state, the first folding arm 16 is embedded in the first area of ​​the avoidance groove 174, and the boss is embedded in the second area of ​​the avoidance groove 174; the above structural design serves to limit the first folding arm 16.

[0316] Example Group 5

[0317] In some embodiments, 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 groups of deformable connecting parts 14; each deformable connecting part 14 is connected to the top component 11 and the bottom component 12 respectively, and 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 moved away from or close to each other, so that the expandable mechanism has at least an extended state and a folded state.

[0318] The specific implementation of the top member 11, the bottom member 12, the folding assembly 13, and the deformable connecting portion 14 in this embodiment can refer to the above embodiment. The specific analysis and expansion of this embodiment can refer to the above embodiment.

[0319] In some embodiments, see Figure 3 、 Figure 6 The deformable 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 part 12 to form 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 to form a second connection point 20; the second end 172 of the second folding arm 17 is rotatably set to the top part 11 to form a third connection point 21.

[0320] The specific implementations of the first folding arm 16 , the second folding arm 17 , the first connection point 19 , the second connection point 20 , and the third connection point 21 may refer 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 a position on the second folding arm 17 close to the first end 171 of the second folding arm 17 to form a second connection point 20.

[0322] In some embodiments, during the switching process of the expandable mechanism between its extended state and its folded state, 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 arrangement can reduce the shaking of the expandable mechanism during the state switching process. The specific analysis and extension of this embodiment can refer to the above embodiment.

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

[0325] The specific analysis and extension of this embodiment can refer to the above embodiments.

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

[0327] The specific analysis and extension of this embodiment can 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. The above arrangement enables the two deformable connecting parts 14 and the partial areas of the top part 11 and the bottom part 12 to form an isosceles trapezoidal shape when the expandable mechanism is in the extended state, such as Figure 3As shown; the above structure makes the extended state more stable; and when the expandable mechanism changes from the extended state to the folded state, the top component 11 and the bottom component 12 approach each other along the first direction y, which has the advantage of making the folding process smoother and reducing the probability of the top component 11 and the bottom component 12 being in a misplaced state after being folded; the misplaced state refers to the situation in which, in the folded state, the top component 11 and the bottom component 12 are overlapped and misplaced in the first direction y.

[0329] The specific analysis and extension of this embodiment can refer to the above embodiments.

[0330] In some embodiments, see Figure 3 The expandable mechanism also includes a magnetic component 15, which is arranged between the top component 11 and the bottom component 12, and is used to provide an attractive biasing force when the deformable connection part 14 switches from its extended state to its folded state, so that the deformable connection part 14 tends to form its folded state.

[0331] The specific analysis and extension of this embodiment can refer to the above embodiments.

[0332] In some embodiments, the magnetic component 15 is used to provide a separation biasing force when the deformable connection portion 14 switches from its folded state to its extended state, so that the deformable connection portion 14 tends to form its extended state.

[0333] The specific analysis and extension of this embodiment can refer to the above embodiments.

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

[0335] The specific analysis and extension of this embodiment can 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 arranged close to the bottom part 12 relative to the second part 164; when the deformable connection 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 remain parallel or approximately parallel; when the deformable connection 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 remain parallel or approximately parallel.

[0337] The specific analysis and extension of this embodiment can refer to the above embodiments.

[0338] In some embodiments, see Figure 3 、 Figure 6 The first folding arm 16 and the second folding arm 17 are both sheet-like structures, and the rotational connection position of the second folding arm 17 and the first folding arm 16 divides the outer side surface of the first folding arm 16 into a first part and a second part, the first part of the outer side surface is the outer side surface of the above-mentioned first part 163, and the second part of the outer side surface is the outer side surface of the above-mentioned second part 164; wherein, the first part of the outer side surface is arranged close to the bottom part 12 relative to the second part of the outer side surface; when the deformable connection part 14 is in its extended state, the second part of the outer side surface of the first folding arm 16 abuts against the inner side surface of the second folding arm 17, in this state, the first folding arm 16 and the second folding arm 17 remain parallel or approximately parallel; when the deformable connection part 14 is in its folded state, the first part of the outer side surface of the first folding arm 16 is in contact with the outer side surface of the second folding arm 17; in this state, the first folding arm 16 and the second folding arm 17 remain parallel or approximately parallel.

[0339] The specific analysis and extension of this embodiment can refer to the above embodiments.

[0340] In some embodiments, see Figures 3 to 7 The deformable connection portion 14 also includes an extension arm 18, which is arranged at a position of the first folding arm 16 close to the second end 162 of the first folding arm 16, and is maintained parallel or approximately parallel to the first folding arm 16; when the deformable connection portion 14 is 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 close to the top component 11 and the first end 161 of the first folding arm 16, and the inner side of the second folding arm 17 is at least partially in contact with the outer side of the extension arm 18, so that the first folding arm 16 and the second folding arm 17 are maintained in parallel, or approximately in parallel.

[0341] The specific analysis and extension of this embodiment can 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 connection parts 14 are in the extended state, the expandable mechanism is in the extended state; when both sets of deformable connection parts 14 are in the folded state, the expandable mechanism is in the folded state; when only one of the two sets of deformable connection parts 14 is in the extended state, the expandable mechanism is in the semi-folded state.

[0343] The specific analysis and extension of this embodiment can refer to the above embodiments.

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

[0345] The specific analysis and extension of this embodiment can refer to the above embodiments.

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

[0347] The specific analysis and extension of this embodiment can refer to the above embodiments.

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

[0349] The specific analysis and extension of this embodiment can refer to the above embodiments.

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

[0351] The specific analysis and extension of this embodiment can refer to the above embodiments.

[0352] In some embodiments, the second locking assembly 23 may include a first magnetic member 152 and a third magnetic member 151, the first magnetic member 152 is arranged on the first part 163 of the first folding arm 16; the third magnetic member 151 is arranged on the second folding arm 17; when the deformable connecting portion 14 is in its folded state, the first magnetic member 152 and the third magnetic member 151 are attracted to each other.

[0353] The specific analysis and extension of this embodiment can refer to the above embodiments.

[0354] In some embodiments, see Figure 3 The magnetic assembly 15 also includes a fifth magnetic component 155 and a sixth magnetic component 156. The fifth magnetic component 155 is arranged on the side of the bottom component 12 facing the top component 11; the sixth magnetic component 156 is arranged 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 component 155 and the sixth magnetic component 156 are attracted to each other.

[0355] The specific analysis and extension of this embodiment can refer to the above embodiments.

[0356] In some embodiments, the expandable mechanism further includes a locking assembly, which is disposed between the top component 11 and the bottom component 12 and is configured to indirectly or directly lock the top component 11 and the bottom component 12 when the deformable connection portion 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 assembly includes a first locking assembly 22 disposed between the top member 11 and the bottom member 12. The first locking assembly 22 is configured to indirectly or directly lock the top member 11 and the bottom member 12 when the folding assembly 13 is in the extended state, thereby locking the expandable mechanism in the extended state. The specific implementation of the first locking assembly 22 can be found in the above embodiments.

[0358] In some embodiments, a locking assembly is used to indirectly or directly lock the top component 11 with the bottom component 12 when the folding assembly 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 assembly includes a second locking assembly 23 disposed between the top member 11 and the bottom member 12. The second locking assembly 23 is configured to indirectly or directly lock the top member 11 and the bottom member 12 when the folding assembly 13 is in its folded state, thereby locking the expandable mechanism in its folded state. The specific implementation of the second locking assembly 23 can be found in the above embodiments.

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

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

[0362] For example, the shape of the avoidance groove 174 corresponds to the shape of the first folding arm 16, and when the expandable mechanism is in the folded state, the avoidance 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 avoidance groove 174.

[0363] The specific implementation and extension of this embodiment can be found in the following embodiments.

[0364] In some embodiments, the avoidance 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 avoidance groove 174 may fully or partially accommodate the second folding arm 17. Specific implementations 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 is a "U"-shaped structure, including an avoidance groove 174 and a connecting portion 173; the second end 162 of the first folding arm 16 is rotatably connected to the upper end of the connecting portion 173; when the expandable mechanism is in its extended state, the first folding arm 16 is located on the relative inner side of the second folding arm 17, and the outer side surface of the first folding arm 16 is partially in contact with the inner side surface of the second folding arm 17, and the first folding arm 16 and the second folding arm 17 are arranged in parallel or substantially in parallel; when the expandable mechanism is in its folded state, the first folding arm 16 is fully or partially accommodated in the avoidance groove 174 of the second folding arm 17, and the first folding arm 16 and the second folding arm 17 are arranged in the same plane or substantially in the same plane.

[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] The specific implementation and extension of this embodiment can be found in the following embodiments.

[0368] In some embodiments, see Figures 8 to 15 The magnetic assembly 15 includes at least two magnetic members 157 , one magnetic member 157 is located at the connection portion 173 of the second folding arm 17 , and the other magnetic member 157 is located on the first folding arm 16 and close to the second end 162 of the first folding arm 16 .

[0369] The specific implementation and extension of this embodiment can be found in the following embodiments.

[0370] Example Group 6

[0371] In some embodiments, 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 implementations of the top component 11 , the bottom component 12 , and the folding assembly 13 in this embodiment can refer to the above embodiments.

[0373] In some embodiments, see Figure 4 In the folded state of the expandable mechanism, along the arrangement direction of the top component 11 and the bottom component 12 (i.e., the first direction y), the top component 11 and the bottom component 12 are at least partially overlapped, 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 component 13 is arranged between the top component 11 and the bottom component 12, and a first accommodating groove 30 is provided on the side of the top component 11 facing the bottom component 12, so that when the expandable mechanism is in the folded state, an accommodating space is formed between the top component 11 and the bottom component 12; when the expandable mechanism is in the folded state, the folding component 13 is at least partially received in the accommodating space.

[0375] In this way, the first receiving groove 30 can be used to accommodate the folding assembly 13, reducing the thickness of the expandable mechanism in the first direction y and improving the miniaturization of the expandable mechanism.

[0376] In some embodiments, the folding component 13 is arranged between the top component 11 and the bottom component 12, and a second accommodating groove 40 is provided on the side of the bottom component 12 facing the top component 11, so as to form an accommodating space between the top component 11 and the bottom component 12 in the folded state; in the folded state, the folding component 13 is at least partially received in the accommodating space.

[0377] In this way, the second receiving groove 40 can be used to accommodate the folding assembly 13, reducing the thickness of the expandable mechanism in the first direction y and improving the miniaturization of the expandable mechanism.

[0378] In some embodiments, both the first accommodating groove 30 and the second accommodating groove 40 may be provided.

[0379] For example, the projections of the first accommodating groove 30 and the second accommodating groove 40 in the first direction y completely overlap, or the projections of the notches of the first accommodating groove 30 and the notches of the second accommodating groove 40 in the first direction y completely overlap. In this way, the first accommodating groove 30 and the second accommodating groove 40 can be used to form a storage space, which can accommodate as many folding assemblies 13 as possible, reduce the thickness of the expandable mechanism in the first direction y, and improve the miniaturization of the expandable mechanism. For detailed analysis and expansion of this embodiment, please refer to the above embodiments.

[0380] In some embodiments, in the folded state, the folding assembly 13 is completely stored in the accommodating space.

[0381] In this way, the folding assembly 13 is completely accommodated in the accommodation space, which can further reduce the thickness of the expandable mechanism in the first direction y and improve the miniaturization of the expandable mechanism.

[0382] In some embodiments, the first receiving groove 30 includes a first bottom wall 301 and a first annular side wall connected to the first bottom wall 301 on the side facing the bottom member 12. The first annular side wall can form an annular first receiving groove 30. Detailed analysis and expansion of this embodiment can refer to the above embodiments.

[0383] In some embodiments, the second receiving groove 40 includes a second bottom wall 401 and a second annular side wall connected to the second bottom wall 401 on the side facing the bottom member 12. The second annular side wall can form an annular second receiving groove 40. Detailed analysis and expansion of this embodiment can refer to the above embodiments.

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

[0385] The detailed analysis and extension of this embodiment can be found in the above embodiment. The two end surfaces may be partially or fully abutted. When fully abutted, the first and second accommodating grooves 30 and 40 can be used to form a closed accommodation space in the folded state, and the folding assembly 13 can be accommodated within the accommodation space. This can improve the aesthetics of the expandable mechanism in the folded state, reduce the impact of external interference on the folding assembly 13 in the folded state, increase the service life of the folding assembly 13, and reduce the thickness of the expandable mechanism along the first direction y.

[0386] In other embodiments, in the folded state, the end surface 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, this can also form a closed storage space. In other embodiments, in the folded state, the end surface 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, this can also form a closed storage space.

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

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

[0389] The detailed analysis and extension of this embodiment can refer to the above embodiment. 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, thereby improving the user's convenience.

[0390] In some embodiments, in the folded state, the first edge groove 50 and the second edge groove 60 are at least partially overlapped and communicated with each other along the arrangement direction.

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

[0392] In some embodiments, in the folded state, the notch of the first edge groove 50 completely overlaps and communicates with the notch of the second edge groove 60. For example, the first edge groove 50 and the second edge groove 60 can be set to the same size and shape. This can not only further improve the convenience of operation, but also improve the aesthetics and reduce the complexity of the production 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. When the user operates the expandable mechanism to extend, this arrangement can prevent the user from touching the folding assembly 13 and affecting the extension of the folding assembly 13, thereby improving the smoothness of operation.

[0395] In some embodiments, the folding assembly 13 includes two sets of deformable connectors 14; each set of deformable connectors 14 is rotatably connected to the top member 11 and the bottom member 12, respectively. The deformable connectors 14 have at least an extended state and a folded state. To ensure that the expandable mechanism has at least an extended state and a folded state, the two sets of deformable connectors 14 are spaced apart in a direction perpendicular to the arrangement direction.

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

[0397] In some embodiments, the outer side surface of the first annular sidewall is provided with two symmetrically arranged first edge grooves 50. In some embodiments, the outer side surface of the second annular sidewall is provided with two 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, making it easier for the user to separate the top member 11 from the bottom member 12 by pinching the first edge grooves 50 on either side of the expandable mechanism, thereby improving operational convenience. In some embodiments, providing two symmetrically arranged first edge grooves 50 and two symmetrically arranged second edge grooves 60 can further improve operational convenience.

[0399] In some embodiments, the arrangement direction of the two groups of deformable connecting parts 14 is perpendicular to the arrangement direction of the two first edge grooves 50. In some embodiments, the arrangement direction of the two groups of deformable connecting parts 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, and 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 connections 14 are arranged along the first sub-direction, and the two first edge grooves 50 are arranged along the second sub-direction. When a user separates the top component 11 and the bottom component 12 by pinching the first edge grooves 50 on both sides, setting the arrangement direction of the two sets of deformable connections 14 perpendicular to the arrangement direction of the two first edge grooves 50 can improve the uniformity of force applied to the two sets of deformable connections 14, improve stability during state changes, and improve the synchronization of the movement trajectories of the two sets of deformable connections 14 during state transitions. Setting the arrangement direction of the two sets of deformable connections 14 perpendicular to the arrangement direction of the two second edge grooves 60 can also achieve this same 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 completely overlaps with the projection of the second edge groove 60. The arrangement direction of the two groups of deformable connection parts 14 is perpendicular to the arrangement direction of the two first edge grooves 50, which can further improve the operational convenience.

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

[0403] In some embodiments, as Figure 11 and 14 As shown, the projections of the top member 11 and the bottom member 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 shown Figure 15As shown, the folded deformable connecting portion 14 is completely located in the groove 121 ; at this time, the annular area of ​​the outer periphery of the top component 11 abuts against the annular area of ​​the outer periphery of the bottom component 12 .

[0404] Example Group 7

[0405] On the basis of embodiment groups 1 to 6, the deformable connecting 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 a flexible material, and the flexible material can be leather or a fiber woven material, or a composite of multiple layers of the above materials, and the magnetic member is mounted on the surface of the first folding arm 16 and the second folding arm 17 or is accommodated inside the first folding arm 16 and the second folding arm 17; the accommodation inside the first folding arm 16 and the second folding arm 17 means that the magnetic member is located inside the first folding arm 16 and the second folding arm 17; in a specific embodiment, the first folding arm 16 and the second folding arm 17 are both sewn with multiple layers of leather material, and the magnetic member is located between two layers of leather material. The addition of the magnetic member, in addition to playing the locking and biasing role mentioned in the above embodiments, can also strengthen the first folding arm 16 and the second folding arm 17, so that it has a certain rigidity, thereby 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 can also be made of a rigid material, which can be a rigid resin material or a metal material, and the magnetic member can 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 can be made of a flexible aramid material; in other specific embodiments, the first folding arm 16 and the second folding arm 17 can 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 a flexible aramid material that is impregnated with a thermosetting resin to obtain a more rigid aramid material, and the thermosetting resin can be an epoxy resin. It is understood that the extension arm 18 and the first folding arm 16 or the second folding arm 17 can be made of similar structures and similar materials.

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

[0407] In some optional 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 member 12 is mounted with a seventh magnetic member, located on a side of the bottom member 12 away from the top member, and configured to interface with an electronic product or a magnetic protective case for the electronic product. The seventh magnetic member may be an annular structure. In one specific embodiment, a groove is defined on a side of the bottom member 12 facing away from the top member 11, the groove corresponding to the shape of the seventh magnetic member, and the seventh magnetic member may be embedded in the groove.

[0409] The above description is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An expandable mechanism, characterized in that: The expandable mechanism comprises: Top piece; bottom piece; a folding assembly connected to the top member and the bottom member, respectively, the folding assembly having an extended state and a folded state, the folding assembly changing between the extended state and the folded state so that the expandable mechanism has at least an extended state and a folded state; A first locking assembly is disposed between the top member and the bottom member, and is used to indirectly or directly lock the top member and the bottom member when the folding assembly is in its extended state, so that the expandable mechanism is locked in its extended state.

2. The expandable mechanism according to claim 1, wherein: The first locking assembly is provided on the folding assembly and is used to lock the folding assembly in its extended state.

3. The expandable mechanism according to any one of claims 1 or 2, characterized in that: The expandable mechanism further comprises: A second locking assembly is disposed between the top member and the bottom member, and is used to indirectly or directly lock the top member and the bottom member when the folding assembly is in its folded state, so that the expandable mechanism is locked in its folded state.

4. The expandable mechanism according to claim 3, wherein: The first locking assembly includes a first locking part and a second locking part, both of which are arranged on the folding assembly; when the folding assembly is in its extended state, the first locking part and the second locking part are detachably connected to each other, so that the folding assembly maintains its extended state.

5. The expandable mechanism according to claim 3, characterized in that: The second locking assembly includes a third locking component and a fourth locking component, the third locking component is arranged on the top component or the bottom component, and the fourth locking component is arranged on the folding assembly; when the folding assembly is in its folded state, the third locking component and the fourth locking component are detachably connected to each other, so that the folding assembly maintains its folded state.

6. The expandable mechanism according to claim 3, characterized in that: The folding assembly includes a deformable connection portion, and the deformable connection portion includes: a first folding arm, a first end of which is rotatably connected to the bottom member; The second folding arm has a first end rotatably connected to a position on the first folding arm close to the second end of the first folding arm, and a second end rotatably connected to the top component.

7. The expandable mechanism according to claim 6, characterized in that: The rotational connection position of the second folding arm and the first folding arm divides the first folding arm into a first portion and a second portion; wherein the first portion is arranged closer to the bottom member relative to the second portion; When the deformable connecting portion is in its extended state, the second portion of the first folding arm abuts against the second folding arm. In this state, the first folding arm and the second folding arm remain parallel or approximately parallel. When the deformable connecting portion is in its folded state, the first portion of the first folding arm abuts against the second folding arm; in this state, the first folding arm and the second folding arm remain parallel or approximately parallel.

8. The expandable mechanism according to claim 6, wherein: The first folding arm and the second folding arm are both sheet-like structures, and the rotational connection position of the second folding arm and the first folding arm divides the outer side surface of the first folding arm into a first portion and a second portion; wherein the first portion is arranged closer to the bottom member relative to the second portion; When the deformable connecting portion is in its extended state, the second portion of the outer side surface of the first folding arm abuts against the inner side surface of the second folding arm. In this state, the first folding arm and the second folding arm are kept parallel or approximately parallel. When the deformable connecting portion is in its folded state, the first portion of the outer side surface of the first folding arm is in contact with the outer side surface of the second folding arm; in this state, the first folding arm and the second folding arm remain parallel or approximately parallel.

9. The expandable mechanism according to claim 6, wherein: The deformable connection portion further includes: an extension arm, disposed on the first folding arm near the second end of the first folding arm, and parallel or approximately parallel to the first folding arm; When the deformable connecting portion 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 close to the top component and the first end of the first folding arm, and 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 remain parallel or approximately parallel.

10. The expandable mechanism according to claim 6, wherein: The folding component includes two groups of deformable connecting parts, each group of deformable connecting parts is connected to the top part and the bottom part respectively; the expandable mechanism also has a semi-extended state; when the two groups of deformable connecting parts are in the extended state, the expandable mechanism is in the extended state; when the two groups of deformable connecting parts are in the folded state, the expandable mechanism is in the folded state; when only one of the two groups of deformable connecting parts is in the extended state, the expandable mechanism is in the semi-extended state.

11. The expandable mechanism according to claim 7 or 8, characterized in that: The first locking assembly comprises: a second magnetic member, disposed on the second portion of the first folding arm; a third magnetic member, provided on the second folding arm; When the expandable mechanism is in its extended state, the second magnetic member is attracted to the third magnetic member.

12. The expandable mechanism according to claim 11, wherein: The second locking assembly comprises: a first magnetic member, disposed on the first portion of the first folding arm; a fourth magnetic member, disposed on a side of the bottom member facing the top member; When the deformable connection portion is in its folded state, the first magnetic member and the third magnetic member are attracted to each other, and the second magnetic member and the fourth magnetic member are attracted to each other.

13. The expandable mechanism according to claim 7 or 8, characterized in that: The second locking assembly comprises: a fourth magnetic member, disposed on a side of the bottom member facing the top member; a second magnetic member, disposed on the second portion of the first folding arm; When the expandable mechanism is in its folded state, the fourth magnetic member is attracted to the second magnetic member.

14. The expandable mechanism according to claim 7 or 8, characterized in that: The second locking assembly comprises: a first magnetic member, disposed on the first portion of the first folding arm; a third magnetic member, provided on the second folding arm; When the deformable connecting portion is in its folded state, the first magnetic member and the third magnetic member are attracted to each other.

15. The expandable mechanism according to claim 6, wherein: The expandable mechanism further includes a third locking assembly, the third locking assembly comprising: a fifth magnetic member, disposed on a side of the bottom member facing the top member; The sixth magnetic member is provided on a side of the top member facing the bottom member; when the deformable connecting portion is in its folded state, the fifth magnetic member and the sixth magnetic member are attracted to each other.

16. The expandable mechanism according to claim 1, wherein: The folding assembly includes a deformable connection portion, and the deformable connection portion includes: a first folding arm, a first end of which is rotatably connected to the bottom member; a second folding arm, a second end of which is rotatably connected to the top member; The second end of the first folding arm is rotatably connected to a position on the second folding arm close to the first end of the second folding arm.

17. The expandable mechanism according to claim 16, wherein: The second folding arm is provided with an avoidance groove; when the expandable mechanism is in its folded state, the first folding arm is completely or partially accommodated in the avoidance groove.

18. The expandable mechanism according to claim 17, wherein: The folding component includes two groups of deformable connecting parts arranged along the second direction; each group of deformable connecting parts is connected to the top part and the bottom part respectively; the second folding arm is a "U"-shaped structure, including the avoidance groove and the connecting part; the second end of the first folding arm is rotatably connected to the upper end of the connecting part; when the expandable mechanism is in its extended state, the first folding arm is located on the relative inner side of the second folding arm, the outer side surface of the first folding arm is partially in contact with the inner side surface of the second folding arm, and the first folding arm and the second folding arm are arranged in parallel or basically in parallel; when the expandable mechanism is in its folded state, the first folding arm is fully or partially accommodated in the avoidance groove of the second folding arm, and the first folding arm and the second folding arm are arranged in the same plane or basically in the same plane.

19. The expandable mechanism according to claim 18, wherein: The first locking assembly includes at least two magnetic components, one of which is located at the connecting portion of the second folding arm, and the other of which is located on the first folding arm and close to the second end of the first folding arm.

20. The expandable mechanism according to claim 15, wherein: The first locking component is composed of a magnetic part, a Velcro or a locking part; the second locking component is composed of a magnetic part, a Velcro or a locking part.

21. The expandable mechanism according to claim 1, wherein: The folding assembly includes two groups of deformable connecting parts; each group of the deformable connecting parts is rotatably connected to the top part and the bottom part respectively, and the deformable connecting parts have at least an extended state and a folded state, so that the top part and the bottom part move away from or close to each other, so that the expandable mechanism has at least an extended state and a folded state.

22. The expandable mechanism according to claim 6 or 16, characterized in that: 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; the arrangement direction is the stacking direction of the top component and the bottom component when the expandable mechanism is in the folded state.

23. The expandable mechanism according to claim 22, wherein: The folding assembly includes two groups of deformable connecting parts, each group of deformable connecting parts is connected to the top component and the bottom component respectively; along a direction perpendicular to the arrangement direction, a first distance between the first ends of the first folding arms of the two groups of deformable connecting parts is greater than a second distance between the second ends of the second folding arms of the two groups of deformable connecting parts; When the deformable connecting parts are in an extended state, the lengths of the two groups of deformable connecting parts are equal, and the top component and the bottom component are arranged in parallel along the vertical direction.

24. The expandable mechanism according to claim 23, wherein: A first connection point is formed between the first folding arm and the bottom member, a second connection point is formed between the second folding arm and the first folding arm, and a third connection point is formed between the second folding arm and the top member; 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.

25. The expandable mechanism according to claim 1, wherein: In the folded state of the expandable mechanism, the top component and the bottom component are at least partially overlapped along the arrangement direction of the top component and the bottom component, and at least a portion of the edge of the top component abuts against at least a portion of the edge of the bottom component.

26. The expandable mechanism according to claim 25, wherein: The folding assembly is arranged between the top component and the bottom component, and a first accommodating groove is provided on a side of the top component facing the bottom component and / or a second accommodating groove is provided on a side of the bottom component facing the top component, so that when the expandable mechanism is in the folded state, an accommodating space is formed between the top component and the bottom component; when the expandable mechanism is in the folded state, the folding assembly is completely stored in the accommodating space.

27. The expandable mechanism according to claim 26, wherein: The first accommodating groove has a first bottom wall and a first annular side wall connected to the first bottom wall and facing the bottom member, and the second accommodating groove has a second bottom wall and a second annular side wall connected to the second bottom wall and facing the bottom member; When the expandable mechanism is in a folded state, an end surface of the first annular side wall facing away from the first bottom wall abuts against an end surface of the second annular side wall facing away from the second bottom wall; The outer side surface of the first annular side wall is provided with a first edge groove and / or the outer side surface of the second annular side wall is provided with a second edge groove.

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