A hook mechanism, a support device, and an electronic device

Abstract

The application provides a hook mechanism, a supporting device and an electronic device, and relates to the technical field of electronic devices. The application is used to solve the problem that the shaft cover and the base of the existing electronic device are not firmly fixed, the shaft cover is warped and deformed, and the overall appearance is affected. The hook mechanism comprises a shaft cover, a base and a swing arm. The shaft cover is provided with a plurality of first hooking parts. The base is fixedly arranged in the shaft cover. Along a first direction, both ends of the shaft cover are provided with swing arms, and the swing arms are provided with second hooking parts. The swing arm and the base are rotatably connected, so that the swing arm can rotate between an unfolded position and a folded position. When the swing arm is in the unfolded position, the swing arm is located on both sides of the shaft cover along the first direction, and the first hooking part is separated from the corresponding second hooking part. When the swing arm is in the folded position, the swing arms located on both sides of the shaft cover along the first direction are both rotated to one side of the base away from the shaft cover, and are oppositely arranged, and the first hooking part is hooked with the corresponding second hooking part.

Description

[0001] This application claims priority to the Chinese Patent Application No. 202210056058.2, filed on January 18, 2022, and entitled "Terminal Device Shaft Cover Hook Mechanism", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of electronic devices, and in particular to a hook mechanism, a support device, and an electronic device. BACKGROUND

[0003] With the progress of science and technology, the era of large-screen intelligent terminals has arrived. In order to solve the problems of large size of traditional tablet computers, inconvenience of carrying, and small screen of straight bar mobile phones, folding screen terminals have emerged as the times require.

[0004] The folding screen terminal can be divided into a first middle frame, a second middle frame portion, and a shaft mechanism portion. The two sides of the shaft mechanism are fixedly connected with the first and second middle frame portions, respectively. A flexible foldable screen is attached to the plane formed by the first and second middle frame portions and the shaft mechanism portion. The first and second middle frames rotate around the shaft mechanism, so that the folding screen terminal rotates between the folded state and the unfolded state.

[0005] The shaft mechanism includes a base and a shaft cover. The base and the shaft cover are fixedly connected by screws or point gluing. When the terminal is in the folded state, the shaft cover will be exposed externally. However, due to space and layout reasons, the number of fixing points between the shaft cover and the base will be reduced, or the distance between adjacent two fixing points will be too large, resulting in the problem of insecure fixing between the shaft cover and the base. When the terminal is in the folded state and the shaft cover is exposed, if the shaft cover and the base are not fixed securely, the shaft cover may be warped and deformed, affecting the overall appearance, and in severe cases, the shaft cover may even fall off. SUMMARY

[0006] Therefore, the present application provides a hook mechanism, a support device, and an electronic device to solve the problem of insecure fixing between the shaft cover and the base of the folding screen terminal.

[0007] In a first aspect, the present application provides a hook mechanism, comprising a shaft cover, a base and a swing arm, the shaft cover is provided with a plurality of first hooking parts. The base is fixedly arranged in the shaft cover. Along the first direction, both ends of the shaft cover are provided with swing arms, and the swing arms are provided with second hooking parts. The swing arm and the base are rotatably connected, so that the swing arm can rotate between the unfolded position and the folded position; when the swing arm is in the unfolded position, the swing arm is located on both sides of the shaft cover along the first direction, and the first hooking part is separated from the corresponding second hooking part; when the swing arm is in the folded position, the swing arms located on both sides of the shaft cover along the first direction are all rotated to the side of the base away from the shaft cover, and the swing arms located on both sides of the shaft cover along the first direction are oppositely arranged, and the first hooking part is hooked with the corresponding second hooking part.

[0008] The hook mechanism provided by the first aspect of the present application can exert a pulling force on the shaft cover towards the base when the swing arm is in the folded position, because the first hooking part and the second hooking part can be hooked with each other, so that even if the shaft cover is exposed outside, it can also ensure that the shaft cover cannot be warped and deformed away from the base. Moreover, the both ends of the shaft cover along the first direction and the both sides of the shaft cover along the first direction are provided with the swing arms, which is beneficial to the force balance of the shaft cover, and on the other hand, the strength of both ends of the shaft cover along the first direction is enhanced, so as to improve the overall connection strength of the shaft cover and avoid the end of the shaft cover from being warped and deformed away from the base under external force. Compared with the prior art, the hook mechanism provided by the embodiments of the present application increases the hooking structure composed of the first hooking part and the second hooking part on the basis of the fixed connection of the shaft cover and the base by screws or glue points, which is beneficial to further improving the connection strength of the shaft cover when the swing arm is in the folded position, so as to avoid the shaft cover from being warped and deformed, and is beneficial to the overall appearance and improves the user experience.

[0009] In some embodiments of the present application, the first hooking part has a first matching part, and the second hooking part has a second matching part; and the first matching part and the second matching part are matched and abutted when the swing arm is in the folded position. The first matching part and the second matching part are matched and abutted to realize the mutual hooking of the first hooking part and the second hooking part, so as to improve the connection strength of the shaft cover.

[0010] In some embodiments of the present application, the first matching part is a first surface, the first surface faces away from the base, the second matching part is a second surface, and the second surface faces towards the base when the swing arm is in the folded position, and the first surface and the second surface are matched and abutted. In this way, the first hooking part and the second hooking part can exert a pulling force on each other, so that the swing arm and the shaft cover cannot move away from each other, that is, the second hooking part exerts a pulling force on the shaft cover towards the base through the first hooking part, so as to avoid the shaft cover from being warped and deformed away from the base, and improve the fixing strength of the shaft cover.

[0011] In some embodiments of the present application, the first hanging part comprises a first hanging protrusion having a first surface, and a groove is formed between the first surface and the bottom wall of the shaft cover; the second hanging part comprises a second hanging protrusion having a second surface; when the swing arm is in the folded position, the second hanging protrusion is inserted into the groove, and the second surface abuts against the first surface. By abutting against each other, the first hanging protrusion and the second hanging protrusion are limited to avoid moving away from each other in a direction perpendicular to the bottom wall of the shaft cover, i.e., the shaft cover and the swing arm cannot move away from each other, so that the shaft cover cannot be deformed in a direction away from the swing arm or the base.

[0012] In some embodiments of the present application, the second hanging protrusion is arranged on the side of the corresponding swing arm close to the end of the shaft cover. By arranging the second hanging protrusion on the side close to the end of the shaft cover, i.e., the two swing arms at both ends of the shaft cover in the length direction of the shaft cover are located between the two second hanging protrusions, the second hanging protrusion can be closer to the end of the shaft cover, which is beneficial to improve the fixing strength of the end of the shaft cover.

[0013] In some embodiments of the present application, the swing arm comprises a swing arm body, a connecting arm, and a sliding block. The first end of the connecting arm is fixedly connected with the swing arm body, and the second end of the connecting arm is fixedly connected with the sliding block. The sliding block is rotatably connected with the base, and the second hanging part is arranged on the sliding block. By rotatably connecting the sliding block with the base and fixedly connecting the sliding block with the swing arm body through the connecting arm, the swing arm body can rotate relative to the base with the sliding block, and the swing arm body is used to be fixedly connected with the middle frame of the electronic device, so that the middle frame can drive the folding screen to rotate between the folded position and the unfolded position.

[0014] In some embodiments of the present application, a sliding groove is formed in the base, the groove wall of the sliding groove is an arc surface structure, the axis of the arc surface structure is parallel to the rotation axis of the swing arm, and the sliding block is arranged in the sliding groove. In this way, the sliding groove slides along the track of the arc surface structure, i.e., the sliding block rotates around the axis of the arc surface structure, so that the swing arm body and the middle frame can be driven to rotate, so as to realize that the middle frame drives the folding screen to rotate between the folded position and the unfolded position.

[0015] In some embodiments of the present application, an avoiding part is formed in the bottom surface of the sliding groove, and the avoiding part is used to avoid the second hanging part, so that the second hanging part can be hung with the first hanging part. When the sliding block rotates, the avoiding part can avoid the second hanging part, so as to avoid that the second hanging part is blocked by the groove wall of the sliding groove during the rotation of the swing arm, so that the second hanging part can be hung with the corresponding first hanging part.

[0016] In some embodiments of the present application, the avoiding part includes an avoiding gap, the avoiding gap penetrates through the bottom surface of the sliding groove, the first hanging part is arranged corresponding to the position of the avoiding gap, and the second hanging part is located in the avoiding gap. In this way, the second hanging part can be rotated to the lower side of the base through the avoiding gap, and the second hanging part can be hung with the corresponding first hanging part.

[0017] In some embodiments of the present application, the base includes a first base body and a second base body, the second base body is arranged between the first base body and the shaft cover, the second base body is fixedly connected with the first base body, and the second base body is fixedly connected with the shaft cover; the surface of the second base body facing the first base body has a second arc surface, the surface of the first base body facing the second base body has a first arc surface, the second arc surface and the first arc surface form a sliding groove, and the avoiding part is arranged on the second base body. By arranging the base with two parts of the second base body and the first base body, forming the second arc surface on the second base body and the first arc surface on the first base body, and having a certain distance between the corresponding second arc surface and the first arc surface, the sliding groove can be formed, which is beneficial to reduce the processing difficulty of parts and the installation difficulty.

[0018] In some embodiments of the present application, the surface of the sliding block facing the second base body is attached to the second arc surface, and the surface of the sliding block facing the first base body is attached to the first arc surface. That is, the surface of the sliding block facing the second arc surface and the surface of the sliding block facing the first arc surface are arranged as corresponding arc surfaces and coaxially arranged with the first arc surface and the second arc surface, so that the sliding block can rotate around the axis between the first arc surface and the second arc surface.

[0019] In some embodiments of the present application, a plurality of swing arms are arranged, and the plurality of swing arms are distributed along the length direction of the shaft cover. In addition, a plurality of swing arms are arranged on both sides along the length direction of the shaft cover. By arranging a plurality of swing arms, the connection points of the shaft cover along the length direction can be increased. When the swing arm is in the folded position, the plurality of positions on the shaft cover are subjected to the pulling force of the second hanging protrusion towards the base, so as to further improve the connection strength of the shaft cover and avoid the shaft cover from being deformed in the direction away from the base.

[0020] In the second aspect, the present application provides a support device, which includes a first middle frame, a second middle frame, and the hooking mechanism of any one of the above-mentioned solutions. The first middle frame is fixedly connected with the swing arm on one side of the shaft cover, and the second middle frame is fixedly connected with the swing arm on the other side of the shaft cover. The support device provided in the embodiments of the present application includes the hooking mechanism of any one of the above-mentioned solutions, so as to solve the same technical problems and achieve the same technical effects.

[0021] Thirdly, this application provides an electronic device including a foldable screen and the support device described in the above solution, wherein the foldable screen is attached to the support device. The electronic device provided in this application, because it includes the support device described in the above solution, can solve the same technical problem and achieve the same technical effect. Attached Figure Description

[0022] Figure 1 A structural diagram of an electronic device provided in an embodiment of this application;

[0023] Figure 2 A structural diagram of a support device provided in an embodiment of this application;

[0024] Figure 3 A structural diagram of the electronic device provided in the embodiments of this application in its unfolded state;

[0025] Figure 4 This is a structural diagram of the electronic device provided in the embodiments of this application in a folded state;

[0026] Figure 5 A structural diagram of the rotating shaft mechanism of an electronic device provided for related technologies;

[0027] Figure 6 A schematic diagram of the connection structure between the shaft cover and the base provided for related technologies;

[0028] Figure 7 A structural diagram of the hook mechanism of the electronic device provided in the embodiments of this application;

[0029] Figure 8 for Figure 7 Exploded view of the hook mechanism provided;

[0030] Figure 9 A structural diagram of the hook mechanism provided in this application in its deployed state;

[0031] Figure 10 A structural diagram of the hook mechanism provided in this application in a folded state;

[0032] Figure 11 for Figure 7 The provided exploded view of a partial structure of the hook mechanism;

[0033] Figure 12 A partial structural cross-sectional view of the hook mechanism provided in this application;

[0034] Figure 13 A structural diagram showing the first hooking protrusion and the second hooking protrusion hooking each other when the hook mechanism provided in this application is in a folded state;

[0035] Figure 14A structure diagram of a first surface and a second surface abutting each other is provided for an embodiment of the present application.

[0036] Figure 15 Another structure diagram of a first surface and a second surface abutting each other is provided for an embodiment of the present application.

[0037] Figure 16 A structure diagram of a second swing arm and a shaft cover when the hook mechanism is in an unfolded state is provided for the present application.

[0038] Figure 17 A structure diagram of a second swing arm starting to rotate in the hook mechanism is provided. Figure 16

[0039] Figure 18 A distribution structure diagram of a fixing point between a shaft cover and a base and a hooking point between the shaft cover and a swing arm in the hook mechanism is provided for the present application.

[0040] Figure 19 A structure diagram of a first swing arm is provided for the present application.

[0041] Figure 20 A partial structure sectional view of a base of the hook mechanism is provided for the present application.

[0042] Figure 21 A partial structure diagram of the hook mechanism is provided. Figure 20

[0043] A partial structure diagram of the hook mechanism is provided. Figure 22 Figure 21 A sectional structure diagram of a first base body, a second base body and a shaft cover is provided for the present application.

[0044] Figure 23 A structure diagram of a second swing arm is provided for the present application.

[0045] Figure 24 A partial structure diagram of a second base body is provided for the present application.

[0046] Figure 25 A partial structure diagram of a second base body, a first swing arm and a second swing arm is provided for an embodiment of the present application.

[0047] Figure 26 A partial structure diagram of a second base body and a second swing arm is provided for an embodiment of the present application.

[0048] Figure 27 A structure diagram of a base sub-lower part is provided for an embodiment of the present application.

[0049] Figure 28 An assembly structure diagram of a base sub-lower part, a first swing arm and a second swing arm in an unfolded state is provided for an embodiment of the present application. ​​

[0050] Figure 29 Figure 2 shows the assembly structure of the base sub-lower part, the first swing arm and the second swing arm in the folded state according to an embodiment of the present application.

[0051] Figure 2 shows the assembly structure of the base sub-lower part, the first swing arm and the second swing arm in the folded state according to an embodiment of the present application. Figure 2 shows the assembly structure of the base sub-lower part, the first swing arm and the second swing arm in the folded state according to an embodiment of the present application. Figure 2 shows the assembly structure of the base sub-lower part, the first swing arm and the second swing arm in the folded state according to an embodiment of the present application. Figure 2 shows the assembly structure of the base sub-lower part, the first swing arm and the second swing arm in the folded state according to an embodiment of the present application. Figure 2 shows the assembly structure of the base sub-lower part, the first swing arm and the second swing arm in the folded state according to an embodiment of the present application. Figure 2 shows the assembly structure of the base sub-lower part, the first swing arm and the second swing arm in the folded state according to an embodiment of the present application. Figure 2 shows the assembly structure of the base sub-lower part, the first swing arm and the second swing arm in the folded state according to an embodiment of the present application. Figure 2 shows the assembly structure of the base sub-lower part, the first swing arm and the second swing arm in the folded state according to an embodiment of the present application. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0053] Hereinafter, the terms "first", "second", and the like are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", and the like can explicitly or implicitly include one or more of the features.

[0054] In addition, in the present application, the orientation terms such as "upper", "lower", and the like are defined with respect to the orientation of the components shown in the drawings. It should be understood that these directional terms are relative concepts, which are used for relative description and clarification, and can be changed accordingly according to the change of the orientation of the components placed in the drawings.

[0055] In the present application, unless otherwise explicitly specified and limited, the term "connection" should be understood broadly, for example, "connection" can be fixed connection, or detachable connection, or integral; can be directly connected, or indirectly connected through intermediate medium.

[0056] The present application provides an electronic device, which can be a kind of electronic device with a folding screen. The present embodiment is described as a mobile phone as shown in Figure 1 Figure 1.

[0057] For the convenience of the description of the following embodiments, an XYZ coordinate system is established, and the width direction of the electronic device 01 is defined as the X-axis, the length direction of the electronic device 01 is defined as the Y-axis direction, and the thickness direction of the electronic device 01 is defined as the Z-axis direction. It can be understood that the coordinate system of the electronic device 01 can be flexibly set according to actual needs, and the present application only gives an example and cannot be considered as a special limitation to the present application.

[0058] Specifically, please refer to Figure 1 , Figure 1 The structural diagram of the electronic device 01 provided by the embodiments of the present application is shown. The electronic device 01 includes a folding screen 10 and a supporting device 20, the folding screen 10 is supported on the supporting device 20, and the folding screen 10 is used for displaying images, videos, etc. The folding screen 10 includes a first part 11, a second part 12 and a third part 13. The third part 13 is arranged between the first part 11 and the second part 12, when the folding screen 10 is folded, the third part 13 is bent, and the first part 11 and the second part 12 are arranged opposite to each other. At least the third part 13 of the folding screen 10 is made of a flexible material. The first part 11 and the second part 12 can be made of a flexible material, can be made of a rigid material, or can be partially made of a flexible material and partially made of a rigid material. The present application does not make specific limitations in this regard.

[0059] Among them, the folding screen 10 can be an organic light-emitting diode (OLED) screen, a micro organic light-emitting diode (micro OLED) screen, a quantum dot light emitting diode (QLED), a liquid crystal display (LCD), etc.

[0060] Please refer to Figure 2 , Figure 2 The structural diagram of the supporting device provided by the embodiments of the present application is shown. The supporting device 20 includes a first middle frame 22, a second middle frame 23 and a rotating shaft mechanism 21, and the rotating shaft mechanism 21 is connected between the first middle frame 22 and the second middle frame 23.

[0061] Please refer to Figure 3 , Figure 3This is a structural diagram of the electronic device 01 provided in this application embodiment in its unfolded state. The first part 11 of the folding screen 10 is fixedly attached to the corresponding fitting area of ​​the first middle frame 22 (the area shown by the dashed box in the figure), the second part 12 of the folding screen 10 is fixedly attached to the corresponding fitting area of ​​the second middle frame 23, and the third part 13 of the folding screen 10 is fixedly attached to the corresponding fitting area of ​​the pivot mechanism 21. The first middle frame 22 and the second middle frame 23 are rotatably connected by the pivot mechanism 21, thereby enabling the first middle frame 22 and the second middle frame 23 to rotate between the folded position and the unfolded position.

[0062] Please continue reading. Figure 3 When the first middle frame 22 and the second middle frame 23 are in the unfolded position, the electronic device 01 is in the unfolded state. At this time, the folding screen 10 is fully unfolded and the flatness of the folding screen 10 can be guaranteed. In this state, a large screen display can be achieved, which can bring a better user experience.

[0063] Please see Figure 4 , Figure 4 This is a structural diagram of the electronic device 01 in a folded state according to an embodiment of this application. When the first middle frame 22 and the second middle frame 23 are in the folded position, the electronic device 01 is in a folded state. At this time, the first part 11 and the second part 12 of the folded screen 10 are opposite each other, and the third part 13 is in a bent state. The first middle frame 22 and the second middle frame 23 are protected outside the folded screen 10, and the folded screen 10 is not visible to the user, so as to prevent the folded screen 10 from being scratched or damaged, thereby effectively protecting the folded screen 10.

[0064] Furthermore, please continue reading Figure 4 The aforementioned rotating shaft mechanism 21 includes a shaft cover 100 and a base 300. The base 300 is disposed inside the shaft cover 100. When the first middle frame 22 and the second middle frame 23 are in a folded state, the shaft cover 100 will be exposed to the outside. Therefore, the appearance treatment of the shaft cover 100 is required to make the overall structure aesthetically pleasing.

[0065] Please see Figure 5 , Figure 5 A structural diagram of the pivot mechanism 21 of an electronic device 01 provided in the related art. In the electronic device 01 provided in the related art, the pivot cover 100 and the base 300 are connected by a fastener (e.g., a screw, etc.). Figure 5 (As shown) or by applying adhesive for fixation. Please refer to [the diagram]. Figure 6 , Figure 6The schematic diagram of the connection structure between the shaft cover 100 and the base 300 provided for related technologies shows that multiple fixing points need to be set along the length of the shaft cover 100 to improve the fixing strength between the shaft cover 100 and the base 300. However, due to space and layout reasons, it is not possible to reserve screws or glue application points at the locations where the shaft cover 100 and the base 300 need to be fastened. This results in fewer fixing points between the shaft cover 100 and the base 300, or the distance H1 between two adjacent fixing points is too large. Therefore, it causes the problem of the shaft cover 100 and the base 300 not being firmly fixed.

[0066] When the electronic device 01 is in a folded state, the hinge cover 100 is exposed. When the electronic device 01 is subjected to external stress such as a drop, the hinge cover 100 may warp, affecting the overall appearance, and in severe cases, the hinge cover 100 may even detach. For example, please refer to [further details]. Figure 6 When the distance H2 between the fixing point between the shaft cover 100 and the base 300 and the end of the shaft cover 100 is large, the shaft cover 100 is exposed to the outside, and the end of the shaft cover 100 is in a free state. Therefore, under the action of external force, it is easy to warp and deform in the direction away from the base 300, which affects the overall aesthetics. Furthermore, when the warping and deformation is severe, it will also affect the rotation of the electronic device 01 from the folded state to the unfolded state, affecting the user experience.

[0067] To resolve the above issues, please refer to [link / reference]. Figure 7 and Figure 8 , Figure 7 This is a structural diagram of the hook mechanism 24 of the electronic device 01 provided in the embodiments of this application. Figure 8 for Figure 7 An exploded view of the hook mechanism 24 is provided. The hook mechanism 24 includes a shaft cover 100, a base 300, and multiple swing arms 200. The base 300 is fixedly disposed within the shaft cover 100, and the multiple swing arms 200 are rotatably connected to the base 300, and the swing arms 200 are able to rotate relative to the base 300 between an unfolded position and a folded position.

[0068] Please see Figure 9 , Figure 9 A structural diagram of the hook mechanism 24 provided in this application in its unfolded state. The shaft cover 100 has a first side along the Y direction (i.e., the first direction). Figure 9 The left side of the central shaft cover 100) and the second side ( Figure 9(Right side of the central shaft cover 100), the aforementioned swing arm 200 may include a first swing arm 200a and a second swing arm 200b. The first swing arm 200a is located on the first side of the shaft cover 100, and the second swing arm 200b is located on the second side of the shaft cover 100. Both ends along the Y direction are provided with the first swing arm 200a and the second swing arm 200b. The first swing arm 200a and the second swing arm 200b are able to rotate relative to the base 300 between the unfolded position and the folded position.

[0069] Please continue reading for more details. Figure 9 With the first swing arm 200a and the second swing arm 200b in the extended position, the first swing arm 200a and the second swing arm 200b are respectively located on both sides (left and right sides) of the shaft cover 100 along the Y direction. Please refer to [link / reference]. Figure 10 , Figure 10 This is a structural diagram of the hook mechanism 24 provided in this application in a folded state. When the first swing arm 200a and the second swing arm 200b are in the folded position, both the first swing arm 200a and the second swing arm 200b are located on the side of the base 300 away from the shaft cover 100, and the first swing arm 200a and the second swing arm 200b are arranged opposite to each other.

[0070] It should be noted that the first swing arm 200a and the second swing arm 200b provided in this application have the same structure and the same connection method with the base 300. The only difference between the first swing arm 200a and the second swing arm 200b is their installation position. The first swing arm 200a is located on the first side of the shaft cover 100 along the Y direction. Figure 9 (Left side), the second swing arm 200b is located on the second side of the shaft cover 100 along the Y direction ( Figure 9 (Right side). In this way, the first swing arm 200a can be fixedly connected to the first middle frame 22, and the second swing arm 200b can be fixedly connected to the second middle frame 23, thereby realizing the rotation of the first middle frame 22 and the second middle frame 23 between the unfolded position and the folded position.

[0071] Please see Figure 11 , Figure 11 for Figure 7 The provided exploded view of a partial structure of the hook mechanism 24 shows that multiple first hooking parts 110 are provided inside the shaft cover 100, and second hooking parts 210 are provided on both the first swing arm 200a and the second swing arm 200b. When the first swing arm 200a and the second swing arm 200b are in the unfolded state, the first hooking parts 110 and the second hooking parts 210 are separated from each other; when the first swing arm 200a and the second swing arm 200b are in the folded state, the first hooking parts 110 are hooked with the corresponding second hooking parts 210.

[0072] In some embodiments, please continue reading Figure 11The first hanging part 110 comprises a first matching part 110a, and the second hanging part 210 comprises a second matching part 210a. When the first swing arm 200a and the second swing arm 200b are in the folded state, the first matching part 110a and the second matching part 210a abut against each other to realize the mutual hanging of the first hanging part 110 and the second hanging part 210.

[0073] Specifically, please refer to Figure 12 , Figure 12 the partial structure sectional view of the hook mechanism 24 provided in the present application, and in combination with Figure 11 . The first hanging part 110 comprises a first hanging protrusion 111, the second hanging part 210 comprises a second hanging protrusion 211, the first matching part 110a comprises a first surface 111a, and the second matching part 210a comprises a second surface 211a. The surface of the first hanging protrusion 111 away from the base 300 is the first surface 111a, the surface of the second hanging protrusion 211 towards the base 300 is the second surface 211a, and the first surface 111a of the first hanging protrusion 111 and the bottom wall of the shaft cover 100 form a groove 112.

[0074] Please refer to Figure 13 , Figure 13 the structure diagram of the mutual hanging of the first hanging protrusion 111 and the second hanging protrusion 211 when the hook mechanism 24 provided in the present application is in the folded state. When the first swing arm 200a (not shown in the figure) and the second swing arm 200b are in the folded position, the second hanging protrusion 211 is inserted into the groove 112, and the first surface 111a and the second surface 211a abut against each other as shown in Figure 12 .

[0075] Among them, please refer to Figure 14 , Figure 14 the structure diagram of the mutual abutment of the first surface 111a and the second surface 211a provided in the embodiment of the present application. When the first surface 111a and the second surface 211a abut against each other, the first surface 111a and the second surface 211a can be at least partially completely attached and abutted. In this case, the first surface 111a and the second surface 211a are both planes, so when the second hanging protrusion 211 is inserted into the groove 112, the first surface 111a and the second surface 211a abut against each other to realize the mutual hanging of the first hanging protrusion 111 and the second hanging protrusion 211.

[0076] Or, please refer to Figure 15 , Figure 15This is a structural diagram showing another configuration where the first surface 111a and the second surface 211a abut against each other, provided in an embodiment of this application. Both the first surface 111a and the second surface 211a can be curved surfaces, and the axes of both curved surfaces are parallel to the rotation axis of the second hooking protrusion 211. When the second hooking protrusion 211 extends into the groove 112, the edge of the first surface 111a abuts against the second surface 211a, and the edge of the second surface 211a abuts against the first surface 111a, with a gap between the two surfaces. In this case, both the first hooking protrusion 111 and the second hooking protrusion 211 form an approximately hook-like curved structure, allowing the first hooking protrusion 111 and the second hooking protrusion 211 to hook against each other.

[0077] Based on this, the motion process of the hook mechanism 24 will be described in detail, taking the connection structure between the second swing arm 200b and the shaft cover 100 as an example.

[0078] For example, please refer to Figure 16 , Figure 16 The structural diagram of the second swing arm 200b and the shaft cover 100 when the hook mechanism provided in this application is in the unfolded state. When the first swing arm (not shown in the figure) and the second swing arm 200b are in the unfolded position, the first swing arm is located on the first side of the shaft cover 100 along the Y direction. Figure 16 The second swing arm 200b is located on the second side of the shaft cover 100 along the Y direction (left side of the central shaft cover 100). Figure 16 (Right side of the central shaft cover 100), thus enabling... Figure 1 The third part 13 of the foldable screen 10 shown forms a support.

[0079] Then, please see Figure 17 , Figure 17 for Figure 16 The provided hook mechanism 24 includes a structural diagram showing the second swing arm 200b in a folded state and an unfolded state. During the rotation of the second swing arm 200b from the unfolded position to the folded position, the second swing arm 200b rotates relative to the base 300 along direction a, while simultaneously, the second hooking protrusion 211 on the second swing arm 200b rotates relative to the base 300 along direction b. During this process, the second hooking protrusion 211 rotates towards the corresponding first hooking protrusion 111.

[0080] Finally, when the second swing arm 200b rotates to the folded position, the second swing arm 200b rotates to... Figure 13 As shown, the second swing arm 200b is located on the side of the base 300 away from the shaft cover 100. At the same time, the second hooking protrusion 211 is inserted into the groove 112 formed between the corresponding first hooking protrusion 111 and the bottom wall of the shaft cover 100, and the first hooking protrusion 111 and the second hooking protrusion 211 abut against each other.

[0081] It should be noted that during the above movement, the rotation directions of the first swing arm 200a and the second swing arm 200b are opposite, so that when the first swing arm 200a and the second swing arm 200b are rotated to the folded position, the first swing arm 200a and the second swing arm 200b are opposite, and at this position, Figure 1 The third part 13 of the folding screen 10 shown is located between the first swing arm 200a and the second swing arm 200b.

[0082] In this way, when the first swing arm 200a and the second swing arm 200b are in the folded position, since the first hanging protrusion 111 and the second hanging protrusion 211 are hung with each other, the swing arm 200 (including the first swing arm 200a and the second swing arm 200b) can exert a pulling force on the shaft cover 100 towards the base 300, so that even if the shaft cover 100 is exposed outside, the shaft cover 100 cannot be warped and deformed away from the base 300. Furthermore, the first swing arm 200a and the second swing arm 200b are respectively arranged on the first side and the second side of the shaft cover 100, and the first swing arm 200a and the second swing arm 200b are both hung with the second hanging protrusion 211 on the shaft cover 100 through the first hanging protrusion 111, which is beneficial to balance the force on the shaft cover 100; in addition, the first swing arm 200a and the second swing arm 200b are arranged at both ends of the shaft cover 100 along the Y direction, so as to ensure that the connection strength of both ends of the shaft cover 100 is strengthened, thereby improving the overall strength of the shaft cover 100. Compared with the prior art, the hook mechanism 24 provided by the embodiment of the present application increases the hanging structure composed of the first hanging protrusion 111 and the second hanging protrusion 211 on the basis of the fixed connection of the shaft cover 100 and the base 300 through screws or point gluing, so as to further improve the connection strength of the shaft cover 100, and the hanging structure is arranged at both ends of the shaft cover 100, so that when the electronic device 01 falls, the pulling force between the first hanging protrusion 111 and the second hanging protrusion 211 can avoid the end of the shaft cover 100 from being warped and deformed away from the base 300, thereby improving the overall strength of the electronic device 01 and being beneficial to the overall appearance, so as to improve the user experience.

[0083] In some embodiments, please refer to Figure 18 , Figure 18The distribution structure diagram of the connecting point between the shaft cover 100 and the base 300 and the hanging point between the shaft cover 100 and the swing arm 200 in the hook mechanism 24 provided in the present application is shown in the figure. The swing arm 200 can be provided with a plurality of (both the first swing arm 200a and the second swing arm 200b are provided with a plurality of), and is sequentially distributed along the Y direction, that is, the hanging points formed by the plurality of first hanging protrusions 111 and the second hanging protrusions 211 along the Y direction; when the swing arm 200 is in the folded position, the middle region of the shaft cover 100 along the Y direction can also be subjected to the pulling force towards the base 300. In this way, the fixing strength of the shaft cover 100 can be further improved, and the probability of the shaft cover 100 being warped and deformed is greatly reduced.

[0084] The plurality of swing arms 200 (including the first swing arm 200a and the second swing arm 200b) can be evenly distributed at equal intervals along the Y direction, or the distribution mode can be determined according to the actual space and layout. For example, please continue to refer to Figure 18 , the plurality of fixed points (screws or point glue fixing) between the shaft cover 100 and the base 300, and the second hanging protrusions 211 on the plurality of swing arms 200, can be sequentially distributed along the Y direction, that is, the second hanging protrusions 211 and the fixed points are avoided to be on the same straight line along the X direction. In this way, the distance H3 between the fixed points on the shaft cover 100 (including the fixed points between the shaft cover 100 and the base 300, and the hanging points between the first hanging protrusions 111 and the second hanging protrusions 211) can be reduced, so that the distance between the adjacent fixed points can be avoided to be too large, resulting in the reduction of the fixing strength of the shaft cover 100 and the warping deformation of the shaft cover 100.

[0085] Since the first swing arm 200a and the second swing arm 200b have the same structure, and the connection structures between the first swing arm 200a and the base 300 and between the second swing arm 200b and the base 300 are also the same, the connection structure between the swing arm 200 and the base 300 will be described in detail below taking the first swing arm 200a or the second swing arm 200b as an example.

[0086] Please refer to Figure 19 , Figure 19 The structure diagram of the first swing arm 200a provided in the present application is shown in the figure. The first swing arm 200a provided in the embodiment of the present application includes a swing arm body 220, a connecting arm 230, and a sliding block 240, the first end of the connecting arm 230 is fixedly connected with the swing arm body 220, and the second end of the connecting arm 230 is fixedly connected with the sliding block 240. Among them, the swing arm body 220, the connecting arm 230 and the sliding block 240 can be fixedly connected by bonding or other processes, or can be formed into an integrated structure by processes such as injection molding. Therefore, the present application does not make special limitation on this.

[0087] It should be noted that the swing arm body 220 refers to a component for fixed connection with the first middle frame 22 or the second middle frame 23, so that the first middle frame 22 and the second middle frame 23 can rotate relative to the base 300; the connecting arm 230 refers to a component for connecting the slider 240 and the swing arm body 220, so that the swing arm body 220 can rotate together with the slider 240 relative to the base 300; the slider 240 refers to a component for rotating connection with the base 300, so that the overall structure can rotate relative to the base 300.

[0088] In addition, the second hanging protrusion 211 is fixed on the slider 240, and the second hanging protrusion 211 can be provided with one, two or more. When the first swing arm 200a is provided with only one second hanging protrusion 211, the second hanging protrusion 211 can be arranged at any position of the slider 240 along the Y direction, for example, the second hanging protrusion is fixed on any one of the two side walls of the slider 240 along the Y direction. Or the second hanging protrusion 211 can be arranged on one side of the first swing arm 200a close to the end of the shaft cover 100, that is, the two second hanging protrusions 211 arranged on the two first swing arms 200a are arranged on the two sides of the two first swing arms 200a along the Y direction. In this way, the second hanging protrusion 211 can be arranged closer to the end of the shaft cover 100, thereby enhancing the connection strength of the end of the shaft cover 100 and avoiding the end of the shaft cover 100 from being warped and deformed.

[0089] When the first swing arm 200a is provided with two second hanging protrusions 211, the second hanging protrusions 211 can be arranged on the two side walls of the slider 240 along the Y direction. When the first swing arm 200a is provided with multiple second hanging protrusions 211, the multiple second hanging protrusions 211 can be distributed on the slider 240 along the Y direction. In this way, the multiple second hanging protrusions 211 can further improve the connection strength of the shaft cover 100 and further reduce the probability of the end of the shaft cover 100 being warped and deformed.

[0090] In order to realize the rotating connection between the slider 240 and the base 300, the slider 240 and the base 300 can be hinged through a rotating part (such as a rotating shaft) to realize the rotation of the slider 240 (i.e. the swing arm 200) relative to the base 300, so that the swing arm 200 can rotate relative to the base 300 between the unfolded position and the folded position.

[0091] Or, please refer to Figure 20 and Figure 21 , Figure 20 the partial structure sectional view of the base 300 of the hook mechanism 24 provided in the present application, Figure 21 for Figure 20A partial structure diagram of the hook mechanism 24 is provided. The base 300 provided by the embodiment of the present application can include a first base body 310 and a second base body 320, the first base body 310 and the second base body 320 are fixedly connected, and the second base body 320 is arranged between the first base body 310 and the shaft cover 100. Exemplarily, the first base body 310 and the second base body 320 can be fixedly connected through a first screw 340; then, a through hole 350 is formed on the first base body 310 and the second base body 320 in the Z direction, and a second screw 360 passes through the through hole on the first base body 310 and the second base body 320, and the second screw is used for cooperating with a threaded hole on the shaft cover 100, so as to realize the fixed connection between the first base body 310, the second base body 320 and the shaft cover 100.

[0092] In addition, the first base body 310 and the second base body 320, and the second base body 320 and the shaft cover 100 can also be fixed by point gluing, and therefore, the present application does not make specific limitation on this.

[0093] Please refer to Figure 22 and Figure 23 , Figure 22 for Figure 21 the A-A cross-sectional view of the first base body 310, the second base body 320 and the shaft cover 100 provided by the present application, Figure 23 the structure diagram of the second swing arm 200b provided by the present application. The surface of the first base body 310 facing the second base body 320 is formed with a plurality of first arc surfaces 311, the surface of the second base body 320 facing the first base body 310 is formed with a plurality of second arc surfaces 321, and the first arc surface 311 and the corresponding second arc surface 321 are coaxially arranged; the corresponding first arc surface 311 and the second arc surface 321 have a certain distance to form a sliding groove 330. The sliding block 240 is arranged between the first arc surface 311 and the second arc surface 321 (as shown in Figure 20 ), that is, the sliding block 240 is arranged in the sliding groove 330, so that the sliding block 240 can rotate around the axis line of the first arc surface 311 and the second arc surface 321, that is, the first swing arm 200a can rotate around the axis line of the first arc surface 311 and the second arc surface 321.

[0094] In addition, the surface of the sliding block 240 facing the first arc surface 311 and the surface of the sliding block 240 facing the second arc surface 321 are both arc surfaces 241, and the arc surface 241 is coaxially arranged with the first arc surface 311 and the second arc surface 321, so as to realize the rotation of the sliding block 240 around the axis line between the first arc surface 311 and the second arc surface 321.

[0095] It should be noted that the coaxial arrangement of the first arc surface 311, the second arc surface 321, and the arc surface 241 of the slider 240 means that, in a cross section perpendicular to the Y direction, the first arc surface 311, the second arc surface 321, and the arc surface 241 of the slider 240 are all arc lines, and the centers of the arc lines coincide with each other. In addition, the movement trajectory of the slider 240 is rotation around the center.

[0096] In some embodiments, the base 300 described above can also adopt an integrated mechanism, that is, the sliding groove 330 is formed on the base 300, the sliding groove 330 is an arc groove structure in a cross section perpendicular to the Y direction, and then the slider 240 is arranged in the sliding groove 330 to realize the rotational connection between the first swing arm 200a and the base 300.

[0097] To facilitate the hanging of the first hanging protrusion 111 and the corresponding second hanging protrusion 211, please refer to Figure 24 , Figure 25 , Figure 26 , Figure 24 Figure 2 is a partial structure diagram of a second base body 320 provided in the present application, Figure 25 Figure 3 is a partial structure diagram of the second base body 320, the first swing arm 200a, and the second swing arm 200b provided in the embodiments of the present application, Figure 26 Figure 4 is a partial structure diagram of the second base body 320 and the second swing arm 200b provided in the embodiments of the present application.

[0098] The second base body 320 described above is provided with a relief gap 322, the relief gap 322 penetrates the second base body 320, the second hanging protrusion 211 is arranged at the corresponding relief gap 322, and the first hanging protrusion 111 and the corresponding second hanging protrusion 211 and the relief gap 322 are arranged correspondingly. In this way, during the rotation of the first swing arm 200a, the second hanging protrusion 211 rotates around the axis of the second arc surface 321 and the first arc surface 311, and rotates at the relief gap 322; when the first swing arm 200a is rotated to the folded position, the second hanging protrusion 211 can be hung with the corresponding first hanging protrusion 111 through the relief gap 322.

[0099] Among them, the position of the relief gap 322 corresponds to the position of the second hanging protrusion 211, that is, the relief gap 322 is arranged on one side of the second arc surface 321 along the Y direction, or relief gaps 322 are arranged on both sides, so as to form a relief for the second hanging protrusion 211, to realize the mutual hanging of the first hanging protrusion 111 and the second hanging protrusion 211.

[0100] In some embodiments, the second base body 320 and the first base body 310 can be of an integrated structure and fixedly connected by means of screws or glue dispensing, etc. Alternatively, the second base body 320 and the first base body 310 can be of a split structure.

[0101] Exemplarily, please refer to Figure 27 、 Figure 28 and Figure 29 , Figure 27 the structural diagram of the base sub-lower part 323 provided by the embodiments of the present application, Figure 28 the assembly structural diagram of the base sub-lower part 323 provided by the embodiments of the present application and the first swing arm 200a and the second swing arm 200b in the unfolded state, Figure 29 the assembly structural diagram of the base sub-lower part 323 provided by the embodiments of the present application and the first swing arm 200a and the second swing arm 200b in the folded state. The second base body 320 can include a plurality of base sub-lower parts 323, and the plurality of base sub-lower parts 323 are arranged in one-to-one correspondence with the plurality of Figure 25 first swing arms 200a as shown in the figure. In this way, the second base body 320 is divided into a plurality of sub-components for processing respectively, which is beneficial to reduce the processing difficulty.

[0102] In addition, at least two second arc surfaces 321 and two avoiding notches 322 are arranged on one base sub-lower part 323, that is, one base sub-lower part 323 corresponds to at least one first swing arm 200a and one second swing arm 200b, so as to realize the rotary connection with one first swing arm 200a and one second swing arm 200b. In addition, in the area where the swing arm 200 is not arranged, the base sub-lower part 323 can not be arranged, so as to reduce the production cost.

[0103] In the description of the present specification, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0104] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A hooking mechanism, characterized in that, The utility model relates to a kind of foldable shaft cover, including: Shaft cover, a plurality of first hanging parts are arranged in the shaft cover; Base, fixedly arranged in the shaft cover; Swing arm, along the first direction, both ends of the shaft cover are provided with the swing arm, and the second hanging part is arranged on the swing arm; Wherein, the swing arm is rotatably connected with the base, so that the swing arm rotates between unfolded position and folded position;In the case where the swing arm is in the unfolded position, the swing arm is located on both sides of the shaft cover along the first direction, and the first hanging part is separated from the corresponding second hanging part;In the case where the swing arm is in the folded position, the swing arm located on both sides of the shaft cover along the first direction is rotated to the side of the base away from the shaft cover, and the swing arm located on both sides of the shaft cover along the first direction is oppositely arranged, the first hanging part is hung with the corresponding second hanging part, so that the swing arm can exert a pulling force towards the base on the shaft cover.

2. The hooking mechanism according to claim 1, characterized in that The first hanging part has a first matching part, and the second hanging part has a second matching part;In the case where the swing arm is in the folded position, the first matching part is matched with the second matching part.

3. The hooking mechanism of claim 2, wherein The first matching part is a first surface, the first surface is away from the base, and the second matching part is a second surface, in the case where the swing arm is in the folded position, the second surface is towards the base, and the first surface is in abutment with the second surface.

4. The hooking mechanism of claim 3, wherein The first hanging part includes a first hanging protrusion, the first hanging protrusion has the first surface, and a groove is formed between the first surface and the bottom wall of the shaft cover;The second hanging part includes a second hanging protrusion, and the second hanging protrusion has the second surface; In the case where the swing arm is in the folded position, the second hanging protrusion is inserted into the groove, and the second surface is in abutment with the first surface.

5. The hooking mechanism of claim 4, wherein The second hanging protrusion is arranged on the side of the corresponding swing arm close to the end of the shaft cover.

6. A hooking mechanism according to any one of claims 1 to 5, characterised in that The swing arm includes: Swing arm body; Connecting arm, the first end of the connecting arm is fixedly connected with the swing arm body; Sliding block, the second end of the connecting arm is fixedly connected with the sliding block, the sliding block is rotatably connected with the base, and the second hanging part is arranged on the sliding block.

7. A hooking mechanism according to claim 6, characterised in that The base is provided with a sliding groove, the groove wall of the sliding groove is arc surface, the axis of the arc surface is parallel to the rotation axis of the swing arm, and the sliding block is arranged in the sliding groove.

8. The hooking mechanism of claim 7, wherein The bottom surface of the sliding groove is provided with a avoiding part, the avoiding part is used for avoiding the second hanging part, so that the second hanging part can be hung with the first hanging part.

9. The hooking mechanism of claim 8, wherein, The avoiding part includes an avoiding notch, the avoiding notch penetrates the bottom surface of the sliding groove, the first hanging part is arranged corresponding to the position of the avoiding notch, and the second hanging part is located in the avoiding notch.

10. The hooking mechanism of claim 8, wherein The base includes a first base body and a second base body, the second base body is arranged between the first base body and the shaft cover, the second base body is fixedly connected with the first base body, and the second base body is fixedly connected with the shaft cover. The second base body has a second arc surface on the surface thereof facing the first base body, the first base body has a first arc surface on the surface thereof facing the second base body, the second arc surface and the first arc surface form the sliding groove, and the avoiding part is arranged on the second base body.

11. The hooking mechanism of claim 10, wherein The surface of the sliding block facing the second base body is attached to the second arc surface, and the surface of the sliding block facing the first base body is attached to the first arc surface.

12. The hooking mechanism according to any one of claims 1 to 5, characterized in that The swing arms are arranged in plurality, and the swing arms are arranged on both sides of the length direction of the shaft cover.

13. A support device, characterized by The hook mechanism comprises a first middle frame, a second middle frame and the hook mechanism of any one of claims 1-12, the first middle frame is fixedly connected with the swing arm on one side of the shaft cover, and the second middle frame is fixedly connected with the swing arm on the other side of the shaft cover.

14. An electronic device, comprising: The folding screen comprises: A folding screen; The folding screen is attached to the supporting device.

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