Protective sleeve and electronic device

Abstract

The application provides a protective sleeve and an electronic device, and belongs to the technical field of electronic device accessories. The protective sleeve comprises a shell, a first supporting part and a second supporting part. The first supporting part and the second supporting part are arranged on the shell. The first supporting part comprises a first supporting piece and a second supporting piece, and the second supporting part comprises a third supporting piece and a fourth supporting piece. The first supporting piece is movably connected with the second supporting piece, and the third supporting piece is movably connected with the fourth supporting piece. When the first supporting piece and the second supporting piece move oppositely to have a first angle, the first supporting part supports the shell in a first direction. When the third supporting piece and the fourth supporting piece move oppositely to have a second angle, the second supporting part supports the shell in a second direction.

Description

Technical Field

[0001] This invention relates to the field of electronic device accessories technology, and in particular to a protective case and an electronic device. Background Technology

[0002] With the continuous development of the electronic device industry, tablet computers are increasingly favored by consumers due to their small size, portability, and support for a large number of applications, which can be used for business office work as well as games and entertainment.

[0003] Tablets typically come with protective cases to protect them from bumps and knocks during transport and use. The case provides support for the tablet without needing to be removed.

[0004] However, existing protective cases can only support tablets horizontally. When users need to use the tablet vertically, the protective case cannot provide support, which makes it extremely inconvenient for users. Summary of the Invention

[0005] This invention provides a protective case and an electronic device to solve the problem that existing protective cases cannot provide bidirectional support, causing inconvenience for users.

[0006] To solve the above-mentioned technical problems, the present invention is implemented as follows:

[0007] This invention provides a protective sleeve, including a shell, a first support portion, and a second support portion;

[0008] The first support portion and the second support portion are disposed on the housing. The first support portion includes a first support member and a second support member, and the second support portion includes a third support member and a fourth support member.

[0009] The first support member is movably connected to the second support member, and the third support member is movably connected to the fourth support member;

[0010] When the first support member and the second support member move relative to each other to a first angle, the first support member supports the housing in a first direction; when the third support member and the fourth support member move relative to each other to a second angle, the second support member supports the housing in a second direction.

[0011] Optionally, the housing is provided with a mounting groove, and both the first support portion and the second support portion are disposed in the mounting groove;

[0012] The ends of the first support member and the third support member are fixedly connected to the mounting groove, and the ends of the second support member and the fourth support member are slidably connected to the mounting groove.

[0013] Optionally, along the first direction, the end dimension of the first support member is larger than the end dimension of the second support member;

[0014] Along the second direction, the end dimension of the third support member is larger than the end dimension of the fourth support member.

[0015] Optionally, when the first support member and the second support member move relative to each other to a 180° angle, the surface of the first support member is flush with the surface of the housing; when the third support member and the fourth support member move relative to each other to a 180° angle, the surface of the second support member is flush with the surface of the housing.

[0016] Optionally, the protective sleeve further includes a driving mechanism; the driving mechanism is connected to the first support portion and the second support portion respectively, and is used to drive the first support member and the second support member to move relative to each other, as well as the third support member and the fourth support member to move relative to each other.

[0017] Optionally, the drive mechanism includes a gear set, a first rack, and a second rack;

[0018] The first rack and the second rack mesh with the gear set respectively; the first rack is fixedly connected to the second support member; and the second rack is fixedly connected to the fourth support member.

[0019] The gear set rotates, causing the first rack and the second rack to slide along the housing, so that the second support member moves to a first angle with the first support member, and the fourth support member moves to a second angle with the third support member.

[0020] Optionally, the gear set includes a first gear and a second gear; the first gear meshes with the first rack, and the second gear meshes with the second rack.

[0021] Optionally, the drive mechanism further includes a cover plate and a knob;

[0022] The cover plate is used to cover the gear set, the first rack, and the second rack;

[0023] The knob is located on the side of the cover plate away from the gear set, and the knob is fixedly connected to the gear set to drive the gear set to rotate.

[0024] Optionally, the cover plate has a plurality of grooves on the side near the knob, and the knob has a limiting member on the side near the cover plate;

[0025] Rotating the knob causes the limiting piece to engage with different grooves, thereby locking and fixing the gear set with the first rack and the second rack.

[0026] This invention also provides an electronic device including the protective case described in any of the preceding embodiments.

[0027] Compared with the prior art, the protective case and electronic device provided in the embodiments of the present invention have the following advantages:

[0028] The protective sleeve provided in this embodiment of the invention includes a shell, a first support portion and a second support portion. The first support portion includes a first support member and a second support member, and the second support portion includes a third support member and a fourth support member. When the first support member and the second support member move relative to each other to a first angle, the first support portion can support the shell in a first direction. When the third support member and the fourth support member move relative to each other to a second angle, the second support portion can support the shell in a second direction. This achieves support for the electronic device in both horizontal and vertical directions, meets the user's needs for various applications in the electronic device, and improves the user experience.

[0029] The electronic device provided in this embodiment of the invention has the same advantages as the prior art and protective cases, which will not be repeated here. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 A schematic diagram showing the protective sleeve in a supported state according to an embodiment of the present invention;

[0032] Figure 2 A schematic diagram showing the protective cover of an embodiment of the present invention in a retracted state;

[0033] Figure 3 A schematic diagram illustrating the protective sleeve in a lateral support configuration according to an embodiment of the present invention;

[0034] Figure 4 A schematic diagram showing the protective sleeve of an embodiment of the present invention in a vertically supported position;

[0035] Figure 5A schematic diagram showing the mounting slot according to an embodiment of the present invention;

[0036] Figure 6 A schematic diagram illustrating the driving mechanism according to an embodiment of the present invention;

[0037] Figure 7 A cross-sectional schematic diagram showing a protective sleeve cut along a direction perpendicular to the shell according to an embodiment of the present invention;

[0038] Figure 8 This is a schematic diagram showing the connection between the cover plate and the knob in an embodiment of the present invention.

[0039] 1-Housing, 11-First support, 12-Second support, 13-Third support, 14-Fourth support, 21-First support member, 22-Second support member, 31-Third support member, 32-Fourth support member, 4-Mounting groove, 5-Gear set, 51-First gear, 52-Second gear, 61-First rack, 62-Second rack, 7-Cover plate, 71-Groove, 8-Knob, 81-Limiting member. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] The terms "first," "second," etc., used in the specification and claims of this invention are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0042] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the invention. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0043] See Figures 1 to 4 This invention provides a protective sleeve, which includes a shell 1, a first support portion 11, and a second support portion 12. The first support portion 11 and the second support portion 12 are disposed on the shell 1. The first support portion 11 includes a first support member 21 and a second support member 22, and the second support portion 12 includes a third support member 31 and a fourth support member 32. The first support member 21 is movably connected to the second support member 22, and the third support member 31 is movably connected to the fourth support member 32. When the first support member 21 and the second support member 22 move relative to each other to a first angle, the first support portion 11 supports the shell 1 in a first direction. When the third support member 31 and the fourth support member 32 move relative to each other to a second angle, the second support portion 12 supports the shell 1 in a second direction.

[0044] Specifically, protective cases are mainly used on portable electronic devices such as tablets and mobile phones. They are placed over the outside of the device to protect it from scratches or damage caused by bumps and knocks. During device use, the protective case also provides support, facilitating video viewing or business office work. This embodiment primarily uses a tablet computer as an example to illustrate the invention. Traditional protective cases can only provide unidirectional support for tablets, but some applications require users to switch screen orientations for operation. In such cases, unidirectional support cases are insufficient to support the tablet.

[0045] Based on this, the protective case provided in this embodiment includes a shell 1, a first support part 11, and a second support part 12. The shell 1 can be made of materials such as silicone, soft plastic, hard plastic, leather, or metal. Since tablet computers are usually rectangular, the shell 1 is also designed as a rectangular structure, with its size slightly larger than the tablet computer. Different sizes of shell 1 can be equipped with tablet computers of different specifications. The shell 1 can be worn only on the back of the tablet computer without obstructing the screen side, thereby reducing the overall weight of the device and allowing the user to use the screen at any time. The shell 1 can also be a structure that includes a protective cover. When the shell 1 is worn on the back of the tablet computer, the protective cover can cover the screen side of the tablet computer, protecting the screen. When the tablet computer is not in use, the presence of the protective cover can effectively prevent scratches on the screen.

[0046] like Figure 1As shown, a first support portion 11 and a second support portion 12 are disposed on the housing 1. The first support portion 11 includes a first support member 21 and a second support member 22, and the second support portion 12 includes a third support member 31 and a fourth support member 32. The first support member 21 and the second support member 22 are movably connected and can move relative to each other to form different angles. The third support member 31 and the fourth support member 32 are also movably connected and can move relative to each other to form different angles. The first support member 21 and the second support member 22, the third support member 31 and the fourth support member 32 can be an integral structure formed by bending, or they can be separate structures formed by rotational connection. When the first support member 21 and the second support member 22 move relative to each other to a first angle, the first support part 11 can support the housing 1 in a first direction. When the third support member 31 and the fourth support member 32 move relative to each other to a second angle, the second support part 12 can support the housing 1 in a second direction. The first direction and the second direction represent the horizontal support and vertical support of the tablet computer, respectively. It should be noted that the relative movement between the first support member 21 and the second support member 22, and the relative movement between the third support member 31 and the fourth support member 32, can be achieved by manual pushing and pulling or by automatic control mechanism. The specific movement can be freely set according to production costs and actual needs, and this embodiment does not impose any restrictions on this.

[0047] Of course, such as Figures 2 to 4 As shown, a third support part 13 and a fourth support part 14 can also be provided on the housing 1. The third support part 13 is arranged opposite to the first support part 11, and the fourth support part 14 is arranged opposite to the second support part 12, thereby realizing all-round support of the tablet computer in four directions. Users can freely choose the direction of support by combining the gravity sensing function of the tablet computer, which further facilitates the use of the user.

[0048] The protective sleeve provided in this embodiment of the invention includes a shell 1, a first support portion 11 and a second support portion 12. The first support portion 11 includes a first support member 21 and a second support member 22. The second support portion 12 includes a third support member 31 and a fourth support member 32. When the first support member 21 and the second support member 22 move relative to each other to a first angle, the first support portion 11 can support the shell 1 in a first direction. When the third support member 31 and the fourth support member 32 move relative to each other to a second angle, the second support portion 12 can support the shell 1 in a second direction. This achieves support for the electronic device in both horizontal and vertical directions, meets the user's needs for various applications in the electronic device, and improves the user experience.

[0049] Optionally, see Figure 4The housing 1 is provided with a mounting groove 4, and the first support part 11 and the second support part 12 are both disposed in the mounting groove 4; wherein, the ends of the first support member 21 and the third support member 31 are fixedly connected to the mounting groove 4, and the ends of the second support member 22 and the fourth support member 32 are slidably connected to the mounting groove 4.

[0050] Specifically, the housing 1 is provided with a mounting groove 4, and the first support part 11 and the second support part 12 are both disposed within the mounting groove 4. The ends of the first support member 21 and the third support member 31 are fixedly connected to the mounting groove 4, while the ends of the second support member 22 and the fourth support member 32 are slidably connected to the mounting groove 4. This means that the first support part 11 and the second support member 1 and the housing 1 are fixedly connected at one end and slidably connected at the other end. This configuration provides better stability for the support compared to a configuration where both ends are movably connected. Furthermore, the second support member 22 and the fourth support member 32 can be slidably connected near the center of the housing 1 to ensure a sufficient sliding area. The size of the sliding area determines the amount of sliding and the support angle; a larger sliding area better meets the user's needs for using the tablet in different postures such as standing, sitting, and lying down.

[0051] Optionally, see Figure 1 Along the first direction, the end dimension of the first support member 21 is larger than the end dimension of the second support member 22; along the second direction, the end dimension of the third support member 31 is larger than the end dimension of the fourth support member 32.

[0052] Specifically, based on the fixed connection between the first support member 21 and the mounting groove 4, and the slidable connection between the second support member 22 and the mounting groove 4, the end dimension of the first support member 21 is set to be larger than the end dimension of the second support member 22 along the first direction. Similarly, based on the fixed connection between the third support member 31 and the mounting groove 4, and the slidable connection between the fourth support member 32 and the mounting groove 4, the end dimension of the third support member 31 is set to be larger than the end dimension of the fourth support member 32 along the second direction. This can further strengthen the reliable connection between the first support part 11 and the second support part 12 and the housing 1, and prevent the support part from failing due to loose connection, which could cause the tablet computer to be bumped or damaged.

[0053] Optionally, see Figure 2 When the first support member 21 and the second support member 22 move relative to each other to a 180° angle, the surface of the first support portion 11 is flush with the surface of the housing 1; when the third support member 31 and the fourth support member 32 move relative to each other to a 180° angle, the surface of the second support portion 12 is flush with the surface of the housing 1.

[0054] Specifically, when the first support member 21 and the second support member 22 move relative to each other to a 180° angle, the first support part 11 is embedded inside the housing 1, and its surface is flush with the surface of the housing 1. When the third support member 31 and the fourth support member 32 move relative to each other to a 180° angle, the second support part 12 is embedded inside the housing 1, and its surface is flush with the surface of the housing 1. In this case, the protective case is in a retracted state and does not support the tablet computer. When the user is not using the tablet computer or is carrying the tablet computer, the first support part 11 and the second support part 12 can be embedded inside the housing 1 to save space occupied by the tablet computer and make it easier to carry.

[0055] Optionally, the protective sleeve further includes a driving mechanism; the driving mechanism is connected to the first support portion 11 and the second support portion 12 respectively, and is used to drive the first support member 21 and the second support member 22 to move relative to each other, and the third support member 31 and the fourth support member 32 to move relative to each other.

[0056] Specifically, the protective case also includes a drive mechanism, which is connected to the first support part 11 and the second support part 12 respectively. The drive mechanism can drive the first support member 21 and the second support member 22 to move relative to each other, as well as drive the third support member 31 and the fourth support member 32 to move relative to each other, so as to realize the switching between the protective case in the supported state and the retracted state. Users can directly adjust the movement of the support members through the drive mechanism, which greatly simplifies the use of the protective case.

[0057] In one embodiment, the driving mechanism includes an elastic element and a snap-fit ​​element. The number of elastic elements and snap-fit ​​elements is equal to the number of support parts, both being two. One end of one elastic element is fixedly connected to the first support member 21, and the other end is fixedly connected to the second support member 22. When the elastic element undergoes elastic deformation, it can drive the second support member 22 to slide along the surface of the housing 1, so that the second support member 22 moves to a position with a first angle to the first support member 21, thereby adjusting the support state of the first support part 11. The other elastic element is fixedly connected to the third support member 31, and the other end is fixedly connected to the fourth support member 32. When the elastic element undergoes elastic deformation, it can drive the fourth support member 32 to slide along the surface of the housing 1, so that the fourth support member 32 moves to a position with a second angle to the third support member 31, thereby adjusting the support state of the second support part 12.

[0058] Optionally, see Figure 5The driving mechanism includes a gear set 5, a first rack 61, and a second rack 62; the first rack 61 and the second rack 62 are respectively meshed with the gear set 5, the first rack 61 is fixedly connected to the second support member 22, and the second rack 62 is fixedly connected to the fourth support member 32; the gear set 5 rotates, causing the first rack 61 and the second rack 62 to slide along the housing 1, so that the second support member 22 moves to have a first angle with the first support member 21, and the fourth support member 32 moves to have a second angle with the third support member 31.

[0059] Specifically, in another embodiment, the driving mechanism includes a gear set 5, a first rack 61, and a second rack 62. The first rack 61 and the second rack 62 mesh with the gear set 5, respectively. The first rack 61 is fixedly connected to the second support member 22, and the second rack 62 is fixedly connected to the fourth support member 32. During the rotation of the gear set 5, the first rack 61 and the second rack 62 slide along the housing 1, thereby causing the second support member 22 and the fourth support member 32 to slide along the housing 1. This causes the second support member 22 to move to a position with a first angle relative to the first support member 21, and the fourth support member 32 to move to a position with a second angle relative to the third support member 31. This embodiment achieves the change of state of the first support part 11 and the second support part 12 through gear and rack transmission. The driving method is simple, reliable, and easy to operate manually. Of course, to prevent the first rack 61 and the second rack 62 from shifting during sliding, a groove can be provided on the surface of the housing 1, into which the first rack 61 and the second rack 62 are embedded for sliding.

[0060] Optionally, see Figure 6 The gear set 5 includes a first gear 51 and a second gear 52; the first gear 51 meshes with the first rack 61, and the second gear 52 meshes with the second rack 62.

[0061] Specifically, the gear set 5 includes a first gear 51 and a second gear 52. The first gear 51 meshes with a first rack 61, and the second gear 52 meshes with a second rack 62. The first gear 51 and the second gear 52 can be mounted on the same gear shaft and rotate synchronously with the gear shaft, thereby achieving synchronous drive of the first support part 11 and the second support part 12. Alternatively, the first gear 51 and the second gear 52 can be mounted on different gear shafts and rotate synchronously with different gear shafts. If the rotation speeds of the gear shafts are inconsistent, the rotation speeds of the first gear 51 and the second gear 52 will also be inconsistent, thereby achieving independent drive of the first support part 11 and the second support part 12.

[0062] Optionally, see Figure 6The drive mechanism further includes a cover plate 7 and a knob 8; the cover plate 7 is used to cover the gear set 5, the first rack 61 and the second rack 62; the knob 8 is located on the side of the cover plate 7 away from the gear set 5, and the knob 8 is fixedly connected to the gear set 5 for driving the gear set 5 to rotate.

[0063] Specifically, the drive mechanism also includes a cover plate 7 and a knob 8. The cover plate 7 is disposed on the housing 1 and is used to cover the gear set 5, the first rack 61, and the second rack 62 to improve the aesthetics of the protective cover. The knob 8 is disposed on the side of the cover plate 7 away from the gear set 5. The knob 8 is fixedly connected to the gear shaft of the gear in the gear set 5. Rotating the knob 8 drives the gear shaft to rotate synchronously, thereby driving the gear set 5 to rotate and realizing the adjustment of the support state.

[0064] Optionally, see Figures 7 to 8 The cover plate 7 has a plurality of grooves 71 on the side near the knob 8, and the knob 8 has a limiting member 81 on the side near the cover plate 7; the knob 8 is rotated so that the limiting member 81 is engaged in different grooves 71, so that the gear set 5 is locked and fixed with the first rack 61 and the second rack 62.

[0065] Specifically, the cover plate 7 has multiple grooves 71 on the side near the knob 8, and the knob 8 has a limiting member 81 on the side near the cover plate 7. During rotation of the knob 8, the limiting member 81 can engage with different grooves 71 on the cover plate 7. When the support is in a supported state, the limiting member 81 can be engaged with the groove 71, locking the gear set 5 with the first rack 61 and the second rack 62. After locking, the first rack 61 and the second rack 62 can no longer slide along the housing 1, thus keeping the support in a supported state. Of course, multiple limiting members can be used to enhance the engagement effect between the limiting member 81 and the groove 71, further strengthening the support. Preferably, a spring can be added to the end of the limiting member 81 to allow for elastic engagement between the limiting member 81 and the groove 71, reducing the impact of machining errors and ensuring full engagement between the limiting member 81 and the groove 71. The limiting member 81 engages with different grooves 71, which means that the gear set 5 rotates at different angles, causing the first rack 61 and the second rack 62 to slide at different distances along the housing 1, and thus the support angle of the support part is also different. The support angle of the support part can be adjusted by the engagement position of the limiting member 81 with the groove 71.

[0066] To facilitate rotating the knob 8, the multiple grooves 71 on the cover plate 7 can be arranged in a circular pattern, with the included angle between two adjacent grooves 71 not exceeding 90°. For example, such as... Figure 8As shown, the included angle between two adjacent grooves 71 can be set to 30°. Twelve grooves 71 are set on the cover plate 7, and four limiting parts 81 are set on the knob 8. This can not only satisfy the reliable locking of the gear set 5 and the rack and pinion and achieve stable support, but also achieve multi-angle support of the protective sleeve in a certain direction, so as to meet the user's needs in different scenarios.

[0067] This invention also provides an electronic device including any of the aforementioned protective covers.

[0068] Specifically, the electronic device in this embodiment includes any of the aforementioned protective cases. When the electronic device is not in use, the support portion on the protective case can be folded up, saving space and making it easy for users to carry. When the electronic device is in use, the support portion on the protective case can be in a supporting state, supporting the electronic device and facilitating users to watch videos or conduct business office work. Furthermore, since the protective case has a two-way support function, users can freely choose horizontal or vertical support as needed, effectively improving the user experience.

[0069] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0070] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art, under the guidance of the present invention, can make many other forms without departing from the spirit and scope of protection of the claims, and all such forms are within the protection scope of the present invention.

Claims

1. A protective case, characterized in that, The protective sleeve includes a shell, a first support portion, and a second support portion; The first support portion and the second support portion are disposed on the housing. The first support portion includes a first support member and a second support member, and the second support portion includes a third support member and a fourth support member. The first support member is movably connected to the second support member, and the third support member is movably connected to the fourth support member; When the first support member and the second support member move relative to each other to a first angle, the first support member supports the housing in a first direction; when the third support member and the fourth support member move relative to each other to a second angle, the second support member supports the housing in a second direction. The housing is provided with a mounting groove, and both the first support part and the second support part are disposed in the mounting groove; The ends of the first support member and the third support member are fixedly connected to the mounting groove, and the ends of the second support member and the fourth support member are slidably connected to the mounting groove. The protective sleeve further includes a drive mechanism; the drive mechanism is connected to the first support portion and the second support portion respectively, and is used to drive the first support member and the second support member to move relative to each other, as well as the third support member and the fourth support member to move relative to each other; The driving mechanism includes a gear set, a first rack, and a second rack; the first rack and the second rack mesh with the gear set respectively, the first rack is fixedly connected to the second support member, and the second rack is fixedly connected to the fourth support member; the gear set rotates, causing the first rack and the second rack to slide along the housing, so that the second support member moves to a first angle with the first support member, and the fourth support member moves to a second angle with the third support member; The drive mechanism further includes a cover plate and a knob; the cover plate is used to cover the gear set, the first rack and the second rack; the knob is located on the side of the cover plate away from the gear set, and the knob is fixedly connected to the gear set for driving the gear set to rotate.

2. The protective sleeve according to claim 1, characterized in that, Along the first direction, the end dimension of the first support member is larger than the end dimension of the second support member; Along the second direction, the end dimension of the third support member is larger than the end dimension of the fourth support member.

3. The protective sleeve according to claim 1, characterized in that, When the first support member and the second support member move relative to each other to a 180° angle, the surface of the first support member is flush with the surface of the housing; when the third support member and the fourth support member move relative to each other to a 180° angle, the surface of the second support member is flush with the surface of the housing.

4. The protective sleeve according to claim 1, characterized in that, The gear set includes a first gear and a second gear; The first gear meshes with the first rack, and the second gear meshes with the second rack.

5. The protective sleeve according to claim 1, characterized in that, The cover plate has multiple grooves on the side near the knob, and the knob has a limiting element on the side near the cover plate; Rotating the knob causes the limiting piece to engage with different grooves, thereby locking and fixing the gear set with the first rack and the second rack.

6. An electronic device, characterized in that, Includes the protective sleeve as described in any one of claims 1 to 5.

Images