An electronic device

Abstract

The present application discloses an electronic device, including a first body, a second body and a rotating shaft assembly, wherein the rotating shaft assembly is arranged on the first body, and the second body is connected to the first body through the rotating shaft assembly and can rotate relative to the first body. A camera is movably arranged in the rotating shaft body of the rotating shaft assembly, and the lens axis of the camera and the axis of the rotating shaft body meet the vertical condition. The camera can switch between the first form and the second form by moving relative to the rotating shaft body. When switching from the first form to the second form, the camera extends out of the axial end of the rotating shaft body so that the lens is located outside the rotating shaft body; when switching from the second form to the first form, the camera retreats into the rotating shaft body.

Description

Technical Field

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

[0002] Most of the current electronic devices are equipped with cameras. However, how to minimize the spatial impact of the camera on other major components such as the screen while meeting usage requirements has always been a problem that technicians in this field need to solve. Summary of the invention

[0003] On the one hand, this application provides the following technical solutions:

[0004] An electronic device, comprising:

[0005] first ontology;

[0006] A rotating shaft assembly, disposed on the first body;

[0007] A second body, connected to the first body through the rotating shaft assembly, and capable of rotating relative to the first body;

[0008] In which, a camera is movably arranged in the shaft body of the shaft assembly, and the lens axis of the camera meets the vertical condition with the axis of the shaft body. The camera can switch between a first form and a second form by moving relative to the shaft body. When switching from the first form to the second form, the camera extends out of the axial end of the shaft body so that the lens is located outside the shaft body; when switching from the second form to the first form, the camera retreats into the shaft body.

[0009] Optionally, in the above electronic device, in the first form, the lens faces a first direction; in the second form, the lens faces a second direction different from the first direction.

[0010] Optionally, in the above electronic device, the first direction is opposite to the second direction.

[0011] Optionally, in the above-mentioned electronic device, the first body has a first surface and a second surface relative to each other, the first surface is provided with a display screen, the hinge assembly is arranged in the middle and upper part of the second surface, and a light-transmitting window is arranged on the side of the hinge body away from the first surface, and in the first form, the lens is opposite to the light-transmitting window.

[0012] Optionally, in the above electronic device, in the first form, the camera is flush with the end surface of the shaft body.

[0013] Optionally, in the above electronic device, there are two cameras, which are respectively located at two ends of the rotating shaft body.

[0014] Optionally, in the above-mentioned electronic device, the shaft body includes a cylinder member, the cylinder member is sleeved on a cylindrical rod member, the camera is arranged at the first end of the rod member, the outer surface of the rod member is provided with a first guide groove, the inner surface of the cylinder member is provided with a first protrusion slidably matched with the first guide groove, the first guide groove includes a straight line segment that meets the parallel condition with the axis of the rod member and an arc segment extending from the end of the straight line segment, and the plane where the arc segment is located meets the perpendicular condition with the axis of the rod member.

[0015] Optionally, in the above electronic device, two end portions of the straight line segment respectively extend to both sides of the straight line segment to form the arc segments at their ends.

[0016] Optionally, in the above-mentioned electronic device, the second end of the rod is provided with a cylindrical cavity extending axially, and the inner surface of the cylindrical cavity is provided with a second guide groove extending spirally around the axis of the rod; a drive shaft is provided in the cylindrical cavity, and the outer surface of the drive shaft is provided with a second protrusion that slides with the second guide groove.

[0017] Optionally, in the above electronic device, there are more than two first guide grooves which are evenly distributed around the axis of the rod, and / or there are more than two second guide grooves which are evenly distributed around the axis of the rod.

[0018] According to the above technical solution, in the electronic device provided by the present application, the first body and the second body are connected by a rotating shaft assembly and can rotate relative to each other. A camera is movably arranged in the rotating shaft body of the rotating shaft assembly. The lens axis of the camera and the axis of the rotating shaft body meet the vertical condition. The camera can switch between the first form and the second form by moving relative to the rotating shaft body. When switching from the first form to the second form, the camera extends out of the axial end of the rotating shaft body so that the lens is located outside the rotating shaft body; when switching from the second form to the first form, the camera retreats into the rotating shaft body. That is, the camera is arranged at the rotating shaft connecting the first body and the second body, and can be extended and retracted from one end of the rotating shaft. When the camera is extended, the lens is located outside the rotating shaft body, so that the shooting requirements can be met. At the same time, since the camera is arranged in the rotating shaft assembly and does not occupy the first body and the second body, the space impact on other main components such as the screen can be reduced. For example, the display screen of the electronic device can achieve a smaller narrow edge. In summary, the camera layout of the electronic device provided by the present application is reasonable, which is conducive to reducing the space impact of the camera on other main components such as the screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0020] Figure 1 is a schematic diagram of the electronic device provided in an embodiment of the present application after the second body 2 is opened relative to the first body 1;

[0021] Figure 2 is a schematic diagram of the electronic device provided in an embodiment of the present application after the second body 2 is closed relative to the first body 1;

[0022] Figure 3 yes Figure 2 Schematic diagram of the second body 2 and the rotating shaft assembly 3 (the cylinder 4 is cut away);

[0023] Figure 4 yes Figure 3 An enlarged schematic diagram of the rod 5 in FIG.

[0024] Figure 5 yes Figure 4 A schematic diagram of the structure of the rod 5;

[0025] Figure 6 yes Figure 4 Schematic diagram of the internal structure of the cylinder 4;

[0026] Figure 7 yes Figure 4 A schematic diagram of the structure of the drive assembly 7;

[0027] Figure 8 yes Figure 4 A schematic diagram of the rod 5 after it rotates along the arrow A;

[0028] Fig. 9 yes Figure 8 a schematic diagram of another view of the structure shown;

[0029] Fig.10 yes Figure 8 A schematic diagram of the rod 5 after it moves along the arrow B;

[0030] Fig.11 yes Fig.10 A schematic diagram of the rod 5 after it rotates along the arrow C;

[0031] Fig.12 yes Fig.11 Schematic diagram of another view of the structure shown.

[0032] The markings in the figure are:

[0033] 1. First body; 2. Second body; 21. Hollow area; 3. Rotating shaft assembly; 4. Cylinder; 41. First protrusion; 5. Rod; 511. First guide groove a; 512. First guide groove b; 521. Second guide groove a; 522. Second guide groove b; 6. Camera; 61. Lens; 7. Driving assembly; 71. Motor; 72. Driving shaft; 721. Second protrusion a; 722. Second protrusion b. DETAILED DESCRIPTION

[0034] The present application provides an electronic device with a reasonable camera layout, which is conducive to reducing the spatial impact of the camera on other major components such as a screen.

[0035] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0036] See also Figures 1 to 12 The embodiment of the present application provides an electronic device, including a first body 1, a second body 2 and a rotating shaft assembly 3, wherein the second body 2 is connected to the first body 1 through the rotating shaft assembly 3 and can rotate relative to the first body 1. A camera 6 is movably arranged in the rotating shaft body of the rotating shaft assembly 3, and the rotating shaft body is relatively fixedly arranged with respect to either the first body 1 or the second body 2. The axis of the lens 61 of the camera 6 and the axis of the rotating shaft body meet the vertical condition, that is, the axis of the lens 61 of the camera 6 and the axis of the rotating shaft body are perpendicular or substantially perpendicular, for example, the angle between the two is 90±5°, and the camera 6 can realize the switching between the first form and the second form by moving relative to the rotating shaft body. When switching from the first form to the second form, the camera 6 extends out of the axial end of the rotating shaft body, so that the lens 61 is located outside the rotating shaft body; when switching from the second form to the first form, the camera 6 retreats into the rotating shaft body. That is to say, the camera 6 is arranged at the shaft connecting the first body 1 and the second body 2, and can be extended and retracted from one end of the shaft. When the camera 6 is extended, the lens 61 is located outside the shaft body, thereby meeting the shooting requirements. At the same time, since the camera 6 is arranged on the shaft assembly 3 and does not occupy the first body 1 and the second body 2, the space impact on other major components such as the screen can be reduced.

[0037] In one embodiment, the first body 1 is a host system of the electronic device, and the second body 2 is a support body of the host system. Figure 1 and Figure 2As shown, in this embodiment, a display screen is arranged on the front of the first body 1, a hinge assembly 3 is arranged on the back of the first body 1, and electronic components such as a motherboard of an electronic device are arranged inside the first body 1. The second body 2 is connected to the back of the first body 1 through the hinge assembly 3, and can be rotated to open and close relative to the first body 1. When the second body 2 is opened to a certain angle relative to the first body 1, the second body 2 and the first body 1 form a herringbone support structure as a whole, as shown in FIG. Figure 1 As shown, the electronic device can be used standing on a desktop. When the second body 2 is closed relative to the first body 1 until it is attached to the back of the first body 1, the second body 2 is stacked with the first body 1, as shown in FIG. Figure 2 As shown, the second body 2 and the first body 1 are generally flat as a whole, and the user can conveniently place the electronic device flat on a support such as a desktop or knee for use. In order to make it easy to open the second body 2 when it is in contact with the back of the first body 1, the second body 2 is provided with a hollow area 21, so that when the second body 2 needs to be opened, the user can open the second body 2 and the first body 1 by putting his fingers into the hollow area 21. In addition, while the second body 2 serves as a support for the host system, some functional modules can also be set on the second body 2 to enrich the use functions of the second body 2, for example, a screen can be set on the second body 2 as a secondary display screen, or an audio output module can be set on the second body 2.

[0038] In other embodiments, the electronic device may be a foldable device, for example, the second body 2 and the first body 1 are both plate-shaped, one side of the second body 2 is connected to one side of the first body 1 via a hinge assembly 3, the electronic device is provided with a flexible display screen, a first portion of the flexible display screen is supported by the front side of the first body 1, a second portion of the flexible display screen is supported by the front side of the second body 2, and the second body 2 can rotate relative to the first body 1 within a range of 0° to 180°, thereby realizing the flattening and folding of the above-mentioned flexible display screen.

[0039] like Figure 1 As shown, the first body 1 has a first surface and a second surface relative to each other, the first surface (i.e., the surface facing away from the second body 2) is provided with a display screen, and in one embodiment, the hinge assembly 3 is arranged at the middle and upper part of the second surface, which is conducive to the second body 2 providing a more stable support for the first body 1. In another embodiment, the hinge assembly 3 can also be arranged at other positions of the second surface, such as the top edge of the first body 1.

[0040] In a preferred embodiment, the lens 61 of the camera 6 faces different directions in the first form and the second form, that is, in the first form, the lens 61 faces the first direction; in the second form, the lens 61 faces the second direction different from the first direction. In other words, when the camera 6 switches between the first form and the second form, it not only moves a certain distance in the axial direction relative to the shaft body of the shaft assembly 3, but also rotates a certain angle in the circumferential direction relative to the shaft body. In this way, the electronic device can achieve shooting in different directions with the camera 6 when in use, thereby providing convenience for the user's multi-scene use. Specifically, the first direction is opposite to the second direction, that is, the angle between the first direction and the second direction is approximately 180°, so that the front-view function and the rear-view function can be achieved by the same camera 6. For example, a light-transmitting window is provided on one side of the first surface of the hinge body away from the first body 1. In the first form, that is, when the camera 6 is retracted into the hinge body, the lens 61 is opposite to the light-transmitting window, thereby meeting the need for rear-view photography. When front-view photography is required, the camera 6 is switched from the first form to the second form, and the lens 61 extends from the axial end of the hinge assembly 3 and turns to the first surface of the first body 1. At this time, the extended camera 6 exceeds the edge of the first surface, that is, the first body 1 does not block the lens 61, thereby meeting the need for front-view photography.

[0041] In the above-mentioned embodiment where the first direction is opposite to the second direction, the camera 6 is switched from the first form to the second form and rotated approximately 180° circumferentially relative to the shaft body. In other embodiments, the present application can also switch the camera 6 from the first form to the second form and rotate other angles, such as 270°, circumferentially relative to the shaft body. In addition, the camera 6 can stop moving at any time during the process of switching from the first form to the second form, that is, the camera 6 has a third form during the process of switching from the first form to the second form. In this way, when the camera 6 switches from the first form to the second form and rotates circumferentially relative to the shaft body by an angle greater than 180°, the camera 6 can be stopped when the rotation angle reaches 180°, and the aforementioned forward and backward shooting functions can also be realized.

[0042] In a preferred embodiment, the present application makes the camera 6 flush with the end face of the shaft body in the first form, that is, when the camera 6 switches from the second form back to the first form, the camera 6 retreats into the shaft body and there is no step structure formed between the surface of the camera 6 exposed axially toward the shaft body and the end face of the shaft body. In this way, the surface of the shaft assembly 3 can be neater and more beautiful after the camera 6 is retracted, and the user's fingers will feel better when touching the end face of the shaft assembly 3.

[0043] The shaft assembly 3 has two opposite shaft ends. In the present application, the aforementioned cameras 6 can be arranged at both shaft ends, that is, two cameras 6 are arranged at the two ends of the shaft body. By arranging two cameras 6, the electronic device can have more functions, for example, two cameras 6 can be opened at the same time for holographic projection or shooting, and dual cameras can be used to realize 3D shooting.

[0044] like Figure 3 to Figure 12 As shown, in order to realize that the camera 6 can switch between the first form and the second form, the present embodiment makes the shaft body include a barrel 4, the barrel 4 is sleeved on the cylindrical rod 5, the camera 6 is arranged at the first end of the rod 5, the outer surface of the rod 5 is provided with a first guide groove, the inner surface of the barrel 4 is provided with a first projection 41 that slides with the first guide groove, the first guide groove includes a straight line segment that meets the parallel condition with the axis of the rod 5 and an arc segment extending from the end of the straight line segment, the plane where the arc segment is located meets the perpendicular condition with the axis of the rod 5, that is, the straight line segment of the first guide groove is parallel or substantially parallel to the axis of the rod 5, and the arc segment of the first guide groove extends substantially along the circumference of the rod 5 from the end of the straight line segment. The barrel 4 is fixedly arranged relative to the shaft body, and when the rod 5 moves relative to the shaft body, the first projection 41 changes position relative to the rod 5 along the first guide groove. When the first protrusion 41 moves in the arc segment of the first guide groove, it means that the rod 5 rotates relative to the barrel 4, that is, the rod 5 rotates relative to the barrel 4 along the circumferential direction of the barrel 4, and the direction of the lens 61 of the camera 6 changes; when the first protrusion 41 moves in the straight segment of the first guide groove, it means that the rod 5 moves relative to the barrel 4, that is, the rod 5 moves relative to the barrel 4 along the axial direction of the barrel 4, and the camera 6 extends outward or retracts inward. In other words, when the camera 6 switches between the first form and the second form, the movement of the camera 6 relative to the shaft body includes both the translational movement of the extension or retraction action and the rotational movement around the axis of the shaft assembly 3. In other embodiments, the movement of the camera 6 relative to the shaft body may only include translational movement, not rotational movement, but in this embodiment, the camera 6 cannot change the direction of the lens 61 by switching the form.

[0045] The length of the straight segment of the first guide groove determines the stroke that the rod 5 can move axially relative to the cylinder 4, and the length of the arc segment of the first guide groove determines the stroke that the rod 5 can rotate circumferentially relative to the cylinder 4. The length of the straight segment and the length of the arc segment can be set as needed, and the total length of the arc segment can be distributed to the two ends of the straight segment, that is, the two ends of the straight segment extend to the two sides of the straight segment to form the arc segments at the ends. Specifically, the two arc segments at the two ends of the straight segment can be evenly divided or unequally divided into the total rotation stroke, that is, the two arc segments at the two ends of the straight segment can be set to be equal in length or unequal in length. For example, when the camera 6 switches from the first form to the second form, the rotation stroke of the rod 5 relative to the cylinder 4 is 180°, then the lengths of the two arc segments at the two ends of the straight segment can be equal to achieve a rotation stroke of 90° respectively, or the lengths of the two arc segments at the two ends of the straight segment can be unequal, one arc segment achieves a rotation stroke of 60°, and the other arc segment achieves a rotation stroke of 120°.

[0046] In a preferred embodiment, the present application provides more than two first guide grooves which are evenly distributed around the axis of the rod 5, which is conducive to making the movement of the rod 5 more stable. Figure 5 As shown, in this embodiment, the rod 5 is provided with two first guide grooves, namely the first guide groove a511 and the first guide groove b512. It should be noted that Figure 6 In order to show the internal structure of the cylinder 4, the cylinder 4 is cut open along the longitudinal section. Figure 6 The other half of the cylinder 4 (not shown) is also provided with a first protrusion 41. The two first protrusions 41 are respectively slidably matched with the first guide groove a511 and the first guide groove b512. Figure 4 , Figure 8 , Fig.10 and Fig.11 During the illustrated movement, the illustrated first protrusion 41 is located in the first guide groove b512. Figure 4 What is shown is the position of the camera 6 in the first form. Fig.11 The position of the camera 6 in the second state is shown. Figure 8 and Fig.10 The figure shows the position of the camera 6 during the switching process from the first state to the second state. Figure 4 and Fig.12 It can be seen that in the first form, the lens 61 of the camera 6 faces the positive direction of the normal of the longitudinal section of the barrel 4, and in the second form, the lens 61 of the camera 6 faces the negative direction of the normal of the longitudinal section of the barrel 4, that is, the camera 6 rotates 180° around the axis of the barrel 4 from the first form to the second form. In this embodiment, the two arc segments at both ends of the straight segment of the first guide groove are equal in length, so the camera 6 is rotated 180° around the axis of the barrel 4 from the first form to the second form. Figure 4 The position shown along Figure 4The arrow A in the middle is rotated 90° and transformed to Figure 8 The position shown in the figure, camera 6 is Fig.10 The position shown along Fig.10 The arrow C in the middle is rotated 90° and transformed to Fig.11 The position shown in the figure, camera 6 is Figure 8 The position shown is transformed to Fig.10 The position shown is only along Figure 8 Arrow B in the figure moves without rotating.

[0047] In order to make the movement of the camera 6 extending out of the shaft body and retracting the shaft more coherent and smooth, the second end of the rod 5 is provided with a cylindrical cavity extending in the axial direction, and the inner surface of the cylindrical cavity is provided with a second guide groove extending spirally around the axis of the rod 5; a driving shaft 72 is provided in the cylindrical cavity, and the outer surface of the driving shaft 72 is provided with a second protrusion that slidably cooperates with the second guide groove. The driving shaft 72 is rotatably arranged on the shaft assembly 3 and can rotate around the axis of the cylinder 4. When the driving shaft 72 rotates, the second protrusion on the driving shaft 72 abuts against the guide surface of the second guide groove to apply a driving force to the rod 5. Since the second guide groove extends spirally around the axis of the rod 5, when the first protrusion 41 is located in the straight section of the first guide groove to restrict the rotation of the rod 5, the rod 5 moves along the axial direction of the cylinder 4 under the action of the rotating driving shaft 72; when the first protrusion 41 is located in the arc section of the first guide groove and no longer restricts the rotation of the rod 5, the rod 5 rotates with the rotating driving shaft 72. It should be noted that the rotation direction of the driving shaft 72 is opposite when the camera 6 is extended and retracted, that is, the driving shaft 72 can retract the extended camera 6 by rotating in the opposite direction.

[0048] In a preferred embodiment, there are more than two second guide grooves and they are evenly distributed around the axis of the rod 5, which is conducive to making the movement of the rod 5 more stable. Figure 5 As shown, in this embodiment, the rod 5 is provided with two second guide grooves, namely, a second guide groove a521 and a second guide groove b522. Correspondingly, the drive shaft 72 is provided with two second protrusions, such as Figure 7 As shown, they are the second bump a721 and the second bump b722, which are symmetrically arranged, that is, 180° apart. Figure 8 As shown, the first protrusion 41b is located in the first guide groove b512. Fig.10 As shown, the second protrusion b722 is located in the second guide groove b522. It should be noted that the rotation angle from the first end to the second end of the second guide groove should not be less than the total rotation stroke angle corresponding to the arc segment of the first guide groove. For example, in this embodiment, the total rotation stroke angle corresponding to the arc segment of the first guide groove is 180°, so the rotation angle from the first end to the second end of the second guide groove can be set to 180°. In addition, the relative position of the second guide groove and the first guide groove can be set as needed, such as Figure 8 As shown, in this embodiment, the second guide groove is arranged on the side of the first guide groove away from the camera 6. In other embodiments, the second guide groove can also be arranged on the side of the first guide groove close to the camera 6. Figure 8 As shown, in this embodiment, one end of the second guide groove close to the first guide groove starts at a position opposite to the straight segment of the first guide groove in the axial direction. In other embodiments, this end of the second guide groove can also start at other positions, such as a position opposite to the middle of the arc segment of the first guide groove in the axial direction.

[0049] There are many options for the power source of the drive shaft 72. In a preferred embodiment, the present application makes the drive assembly 7 include a motor 71, and the motor 71 is fixedly arranged relative to the shaft body of the shaft assembly 3, and the drive shaft 72 rotates driven by the output shaft of the motor 71. In other embodiments, the aforementioned second body 2 can be connected to the drive shaft 72 in a transmission manner. When the second body 2 rotates relative to the first body 1, the moving second body 2 can drive the drive shaft 72 to rotate relative to the shaft body. On the basis of the motor 71 as the power source of the drive shaft 72, the present application can start and shut down the motor 71 in a variety of ways. For example, a physical button can be set to control the motor 71, a virtual button can be set to control the motor 71, and a voice recognition module can be set in the electronic device to control the motor 71 by voice.

[0050] In this specification, each part of the structure is described in a progressive manner, and the structure of each part focuses on the differences from the existing structure. The overall and partial structures of the electronic device can be obtained by combining the structures of the above multiple parts.

[0051] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electronic device, comprising: first ontology; A rotating shaft assembly, disposed on the first body; A second body, connected to the first body through the rotating shaft assembly, and capable of rotating relative to the first body; A camera is movably arranged in the shaft body of the shaft assembly, the lens axis of the camera and the axis of the shaft body meet the vertical condition, and the camera can switch between the first form and the second form by moving relative to the shaft body. When switching from the first form to the second form, the camera extends out of the axial end of the shaft body so that the lens is located outside the shaft body; when switching from the second form to the first form, the camera retreats into the shaft body; The rotating shaft body includes a cylinder member, which is sleeved on a cylindrical rod member, the camera is arranged at the first end of the rod member, the outer surface of the rod member is provided with a first guide groove, the inner surface of the cylinder member is provided with a first protrusion that slides with the first guide groove, the first guide groove includes a straight line segment that meets the parallel condition with the axis of the rod member and an arc segment extending from the end of the straight line segment, and the plane where the arc segment is located meets the perpendicular condition with the axis of the rod member. 2 . The electronic device according to claim 1 , wherein in the first state, the lens faces a first direction; and in the second state, the lens faces a second direction different from the first direction. The electronic device according to claim 2 , wherein the first direction is opposite to the second direction.

4. The electronic device according to claim 3, wherein the first body has a first surface and a second surface relative to each other, the first surface is provided with a display screen, the hinge assembly is arranged at the middle and upper part of the second surface, and a light-transmitting window is arranged on a side of the hinge body away from the first surface, and in the first form, the lens is opposite to the light-transmitting window. 5 . The electronic device according to claim 1 , wherein in the first form, the camera is flush with an end surface of the rotating shaft body. 6 . The electronic device according to claim 5 , wherein the number of the cameras is two and the cameras are located at two ends of the rotating shaft body respectively. 7 . The electronic device according to claim 1 , wherein two ends of the straight line segment extend toward both sides of the straight line segment to form the arc segments at the ends thereof.

8. According to the electronic device of claim 7, the second end of the rod is provided with a cylindrical cavity extending axially, and the inner surface of the cylindrical cavity is provided with a second guide groove extending spirally around the axis of the rod; a driving shaft is provided in the cylindrical cavity, and the outer surface of the driving shaft is provided with a second protrusion that slides with the second guide groove. 9 . The electronic device according to claim 8 , wherein the number of the first guide grooves is more than two and they are evenly distributed around the axis of the rod, and / or the number of the second guide grooves is more than two and they are evenly distributed around the axis of the rod.

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