Slipping mechanism, driving mechanism of folding screen and electronic equipment

Abstract

The utility model discloses a slipping mechanism, a driving mechanism of a folding screen and electronic equipment, the slipping mechanism is used for realizing power transmission between a transmission assembly of the folding screen and a screen support and is used for preventing reverse driving force acting on the screen support from being transmitted to the transmission assembly, and the slipping mechanism comprises a connecting piece and an elastic piece, the connecting piece can slide relative to the screen support, can drive the screen support to rotate and is provided with a transmission position matched with the power input end of the transmission assembly and a slipping position separated from the power output end of the transmission assembly, and at the transmission position, the transmission assembly can drive the connecting piece to rotate so that the screen support can rotate; the elastic piece is used for keeping the connecting piece at the transmission position. According to the slipping mechanism, the transmission assembly of the folding screen can be separated from the screen support under the condition that reverse driving is too large, and the phenomenon that the transmission assembly is damaged due to the fact that reverse driving is too large is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment, and in particular to a sliding mechanism, a driving mechanism of a folding screen and electronic equipment. Background Art

[0002] With the continuous development of portable electronic devices, the display screens of mobile terminals such as mobile phones and tablets are becoming larger and larger. Although large screens can display more content for users at the same time, they also bring problems such as large size of electronic devices, large space occupied and poor portability, which restricts the development of large-screen portable electronic devices. In order to take into account the dual attributes of portability and large screens of various electronic devices, foldable screen electronic products came into being.

[0003] For existing folding screen devices, in addition to the complex and non-compact structural design, there is also a lack of protective structure. When the reverse drive is too large (such as using external force to pry open the screen or the screen falls, etc.), it is very easy to cause damage to the driving mechanism of the folding screen. Utility Model Content

[0004] The first purpose of the utility model is to propose a sliding mechanism, which is used to realize the power transmission between the transmission component of the folding screen and the screen bracket, and to prevent the back-driving force acting on the screen bracket from being transmitted to the transmission component, so as to ensure that the transmission component can be disengaged from the screen bracket when the back-driving force is too large, thereby avoiding the problem of damage to the transmission component due to excessive back-driving.

[0005] The second object of the utility model is to provide a driving mechanism for a folding screen, in which, when the back-drive is too large, the transmission component of the driving mechanism of the folding screen can be disengaged from the screen bracket, thereby avoiding the problem of damage to the transmission component due to excessive back-drive.

[0006] The third purpose of the utility model is an electronic device, which has high reliability and long service life.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] The utility model discloses a slipping mechanism, which is used to realize power transmission between the transmission component of the folding screen and the screen bracket, and to prevent the counter-driving force acting on the screen bracket from being transmitted to the transmission component. The slipping mechanism includes a connecting member and an elastic member. The connecting member is slidable relative to the screen bracket and can drive the screen bracket to rotate. It has a transmission position that cooperates with the power input end of the transmission component and a slipping position that is disengaged from the power output end of the transmission component. In the transmission position, the transmission component can drive the connecting member to rotate so that the screen bracket rotates; the elastic member is used to keep the connecting member in the transmission position.

[0009] In some embodiments, a first clutch tooth is provided at the power output end of the transmission assembly, and a second clutch tooth is provided on the connecting member; wherein: in the transmission position, the first clutch tooth and the second clutch tooth are plugged in, and the first clutch tooth and the second clutch tooth can rotate synchronously; in the slipping position, the second clutch tooth can rotate relative to the first clutch tooth, and disengage from the plugging with the first clutch tooth.

[0010] In some embodiments, a rotating plate is provided on the screen bracket, a sliding groove is provided on the rotating plate and extends along the rotation axis of the screen bracket, and the connecting member has a sliding portion that cooperates with the sliding groove.

[0011] The utility model also discloses a driving mechanism for a folding screen, comprising: a fixed seat, wherein two ends of the fixed seat are rotatably connected to two screen brackets of the folding screen respectively; a rotating plate, wherein the rotating plate is connected to one of the screen brackets; a transmission assembly, wherein the transmission assembly is mounted on the fixed seat, and the power input end of the transmission assembly is connected to a power member; a slipping mechanism, wherein the slipping mechanism comprises a connecting member and an elastic member, wherein the connecting member is rotatably mounted on the fixed seat, wherein one end of the elastic member abuts against the connecting member, and the other end of the elastic member abuts against the fixed seat.

[0012] In some embodiments, a rotating plate is provided on each of the two screen brackets, the transmission assembly has two power output ends, there are two slipping mechanisms, and each of the slipping mechanisms is connected to one of the rotating plates and one of the power output ends.

[0013] In some embodiments, at least one of the screen brackets is provided with a rotating plate, the transmission components are arranged in pairs, and the two transmission components arranged in pairs are respectively located at both ends of the rotating plate along its length direction, and at least one of the two transmission components arranged in pairs cooperates with the power member.

[0014] In some specific embodiments, the transmission assembly includes a plurality of transmission gears meshing in sequence, one of the plurality of transmission gears cooperates with the power member, and the transmission gears located on both sides of the plurality of transmission gears constitute the power output end of the transmission assembly; a gear mounting plate for mounting the plurality of transmission gears is provided on the fixed seat.

[0015] In some embodiments, the power component includes a drive motor, which is installed on the fixed seat; a gear box, the input end of the gear box cooperates with the motor shaft of the drive motor, and the output end cooperates with the power input end of the transmission assembly.

[0016] In some embodiments, the sliding mechanism further includes a rotating shaft, one end of the rotating shaft is connected to the fixing seat, and the other end is passed through the connecting member, and the elastic member is a spring and is sleeved on the rotating shaft.

[0017] The utility model also discloses an electronic device, including a folding screen and the driving mechanism of the folding screen as described above, wherein the folding screen includes two screen brackets and a flexible screen mounted on the screen brackets.

[0018] The slipping mechanism of the utility model has the following beneficial effects: under normal conditions, the connecting part is in the transmission position. At this time, the transmission assembly can drive the connecting part to rotate, and the connecting part can drive the screen bracket to rotate. In this way, the screen bracket can be driven to rotate during the movement of the transmission assembly, thereby realizing the normal unfolding and folding of the folding screen; when a sudden external force acts on the folding screen to open it (external force pries the folding screen open or the screen falls, etc.), and the force between the connecting part and the transmission assembly exceeds the pre-tightening force of the elastic part, the connecting part slides relative to the screen bracket, thereby causing the connecting part to disengage from the power output end of the transmission assembly, so that the movement of the folding screen will not be reversely transmitted from the screen bracket to the power input end of the transmission assembly, thereby protecting the transmission assembly and avoiding damage to the transmission assembly due to excessive reverse power transmission.

[0019] The driving mechanism of the folding screen of the utility model has the following beneficial effects: Due to the slipping mechanism described above, under normal conditions, the power output end of the transmission component cooperates normally with the slipping mechanism, and the transmission component of the folding screen can normally transmit power to the screen bracket. During the movement of the transmission component, the rotating plate can be driven to rotate so that the screen bracket rotates, thereby realizing the normal unfolding and folding of the folding screen. When a sudden external force acts on the folding screen to open it, the slipping mechanism and the power output end of the transmission component are disengaged to prevent the reverse driving force acting on the screen bracket from being transmitted to the transmission component, thereby protecting the transmission component and the power parts, and preventing damage to the transmission component and the power parts due to excessive reverse power transmission.

[0020] The beneficial effects of the electronic device of the utility model are as follows: Since it has the driving mechanism of the folding screen as described above, when a sudden external force acts on the folding screen to open the folding screen (external force pries the folding screen open or the screen falls, etc.), the transmission component of the driving mechanism can be disengaged from the transmission cooperation with the screen bracket of the folding screen, thereby protecting the transmission component and the power parts, avoiding damage to the transmission component and the power parts due to excessive reverse power transmission, thereby improving the reliability of the electronic device.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the folding screen driving mechanism of an embodiment of the utility model;

[0023] Figure 2 It is a partial structural schematic diagram of the folding screen driving mechanism of the embodiment of the utility model when the connecting member is in the transmission position;

[0024] Figure 3 This is a partial structural schematic diagram of the folding screen driving mechanism of the embodiment of the utility model when the connecting member is in a slipping position;

[0025] Reference numerals:

[0026] 100, fixing seat; 110, gear mounting plate; 120, mounting seat; 130, stop plate;

[0027] 200, rotating plate; 210, sliding slot;

[0028] 300, transmission assembly; 310, transmission gear; 320, first clutch gear;

[0029] 400, sliding mechanism; 410, connecting member; 411, sliding portion; 412, second clutch tooth; 420, elastic member; 430, rotating shaft;

[0030] 500. Driving motor; 600. Gear box; 700. Screen bracket. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0032] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0035] The following describes a sliding mechanism 400, a driving mechanism of a folding screen, and an electronic device according to a specific embodiment of the present invention with reference to the accompanying drawings.

[0036] like Figure 2 and Figure 3 As shown, the slipping mechanism 400 of the present embodiment is used to realize power transmission between the transmission assembly 300 of the folding screen and the screen bracket 700, and to prevent the counter-driving force acting on the screen bracket 700 from being transmitted to the transmission assembly 300. The slipping mechanism 400 includes a connecting member 410 and an elastic member 420. The connecting member 410 is slidable relative to the screen bracket 700 and can drive the screen bracket 700 to rotate. It has a transmission position that cooperates with the power input end of the transmission assembly 300, and a slipping position that is disengaged from the power output end of the transmission assembly 300. In the transmission position, the transmission assembly 300 can drive the connecting member 410 to rotate so as to rotate the screen bracket 700. The elastic member 420 is used to keep the connecting member 410 in the transmission position.

[0037] It is understandable that in the actual working process, under normal conditions, the connecting member 410 is in the transmission position. Since the transmission assembly 300 can drive the connecting member 410 to rotate at this time, and the connecting member 410 can drive the screen bracket 700 to rotate, the rotating plate 200 can be driven to rotate during the movement of the transmission assembly 300, so that the screen bracket 700 can be rotated, thereby realizing the normal unfolding and folding of the folding screen. When a sudden external force acts on the folding screen to open it (external force breaks the folding screen or the screen falls, etc.), when the force between the connecting member 410 and the transmission assembly 300 exceeds the pre-tightening elastic force of the elastic member 420, the connecting member 410 slides relative to the screen bracket 700, so that the connecting member 410 is out of cooperation with the power output end of the transmission assembly 300, so that the movement of the folding screen will not be reversely transmitted from the screen bracket 700 to the power input end of the transmission assembly 300, thereby protecting the transmission assembly 300 and avoiding damage to the transmission assembly 300 due to excessive reverse power transmission. When the external force disappears, the elastic member 420 can drive the connecting member 410 located in the slipping position to the transmission position, ensuring that the folding screen can be stably driven to fold or unfold by driving the transmission assembly 300 after the external force disappears.

[0038] like Figure 2-Figure 3 As shown, the power output end of the transmission assembly 300 of this embodiment is provided with a first clutch tooth 320, and the connecting member 410 is provided with a second clutch tooth 412. In the transmission position, the first clutch tooth 320 and the second clutch tooth 412 are plugged, and the first clutch tooth 320 and the second clutch tooth 412 can rotate synchronously; in the slipping position, the second clutch tooth 412 can rotate relative to the first clutch tooth 320 and disengage from the plugging with the first clutch tooth 320. It can be understood that in the actual working process, when the power member drives the transmission assembly 300 to move, the first clutch tooth 320 and the second clutch tooth 412 are plugged, and the first clutch tooth 320 and the second clutch tooth 412 can rotate synchronously, and at this time, the transmission assembly 300 can drive the connecting member 410 to rotate, thereby realizing the driving of the rotating plate 200. When an external force acts on the screen and the force between the connecting member 410 and the transmission assembly 300 exceeds the pre-tightening force of the elastic member 420, the second clutch tooth 412 can rotate relative to the first clutch tooth 320, disengage from the connection with the first clutch tooth 320 and move in the direction of squeezing the elastic member 420, thereby achieving the disengagement of the connecting member 410 from the power output end of the transmission assembly 300.

[0039] In an alternative embodiment, the power output end of the transmission assembly 300 is provided with a first clutch sleeve, and the connecting member 410 is provided with a second clutch sleeve, the first clutch sleeve is sleeved on the second clutch sleeve, and in the transmission position, the first clutch sleeve and the second clutch sleeve can rotate synchronously, and in the slipping position, the second clutch sleeve can rotate relative to the first clutch sleeve. In other embodiments of the utility model, the clutch transmission structure of the power output end of the transmission assembly 300 and the connecting member 410 can be selected according to actual needs, and is not limited to the structure of the first clutch tooth 320 and the second clutch tooth 412 described above.

[0040] like Figure 2-Figure 3 As shown, the screen bracket 700 is provided with a rotating plate 200, and the rotating plate 200 is provided with a sliding groove 210 extending along the rotation axis of the screen bracket 700, and the connecting member 410 has a sliding portion 411 matched with the sliding groove 210. It can be understood that in the actual working process, when the connecting member 410 is located at the transmission position, since the sliding portion 411 is matched in the sliding groove 210, when the connecting member 410 moves under the drive of the power output end of the transmission assembly 300, it can drive the rotating plate 200 to move. When an external force acts on the screen, and the force between the connecting member 410 and the transmission assembly 300 exceeds the pre-tightening elastic force of the elastic member 420, the sliding portion 411 will slide in the sliding groove 210, so that the connecting member 410 is disengaged from the power output end of the transmission assembly 300, so that the connecting member 410 moves from the transmission position to the slipping position. At the same time, the cooperation between the sliding groove 210 and the sliding part 411 can also limit the sliding direction of the connecting member 410 to prevent the connecting member 410 from getting stuck. In this embodiment, the cooperation structure of the sliding groove 210 and the sliding part 411 can ensure that the connecting member 410 can stably drive the rotating plate 200 to move, and can also ensure that the connecting member 410 can stably move from the transmission position to the slipping position.

[0041] The utility model also discloses a driving mechanism for a folding screen, such as Figure 1 As shown, the driving mechanism of the folding screen of this embodiment includes a fixed base 100, a transmission assembly 300 and the sliding mechanism 400 mentioned above, the two ends of the fixed base 100 are rotatably connected to the two screen brackets 700 of the folding screen respectively, the transmission assembly 300 is installed on the fixed base 100, the power input end of the transmission assembly 300 is connected to the power member, the sliding mechanism 400 includes a connecting member 410 and an elastic member 420, the connecting member 410 is rotatably installed on the fixed base 100, one end of the elastic member 420 stops at the connecting member 410, and the other end of the elastic member 420 stops at the fixed base 100.

[0042] It is understandable that, due to the aforementioned slip mechanism 400, under normal conditions, the connector 410 is in the transmission position, the power output end of the transmission assembly 300 cooperates with the slip mechanism 400 normally, and the transmission assembly 300 of the folding screen can normally transmit power to the screen bracket 700. During the movement of the transmission assembly 300, the rotating plate 200 can be driven to rotate so that the screen bracket 700 rotates, thereby realizing the normal unfolding and folding of the folding screen. When a sudden external force acts on the folding screen to open it (external force pries the folding screen apart or the screen falls, etc.), the slip mechanism 400 disengages from the power output end of the transmission assembly 300 to prevent the reverse driving force acting on the screen bracket 700 from being transmitted to the transmission assembly 300, thereby protecting the transmission assembly 300 and the power parts, and preventing damage to the transmission assembly 300 and the power parts due to excessive reverse power transmission.

[0043] refer to Figure 1 As shown, the driving mechanism of the folding screen of this embodiment further includes a rotating plate 200 provided on the screen bracket 700, and the connecting member 410 is slidable relative to the rotating plate 200 and can drive the rotating plate 200 to rotate. By using the rotating plate 200 as an intermediate structure, it is possible to avoid providing a guide groove or other structure on the screen bracket 700 to realize the sliding of the connecting member 410, and it is possible to ensure that the screen bracket 700 can stably support the screen.

[0044] Furthermore, in this embodiment, there are two rotating plates 200, and the two rotating plates 200 are connected to the two screen brackets 700 respectively. There are two transmission assemblies 300, and the two transmission assemblies 300 are respectively located at the two ends of the rotating plate 200 along its length direction, and one of the two transmission assemblies 300 cooperates with the power member. Each transmission assembly 300 has two power output ends, and there are four sliding mechanisms 400, and two sliding mechanisms 400 form a group, a group of sliding mechanisms 400 cooperates with one transmission assembly 300, and the two sliding mechanisms 400 in the group cooperate with the ends of the two rotating plates 200 respectively. It can be understood that in the embodiment of the utility model, the power member can drive the two screen brackets 700 to rotate simultaneously during operation, which can increase the folding speed and opening speed of the folding screen, thereby helping to improve user satisfaction. There are two transmission assemblies 300, and they are located at the ends of the two rotating plates 200. In the actual working process, the two transmission assemblies 300 can drive the two sets of sliding mechanisms 400 to move, and drive the two rotating plates 200 to rotate, so that the end of each rotating plate 200 is provided with a structure to drive its movement, ensuring the smooth rotation of the rotating plate 200.

[0045] like Figure 2-Figure 3 As shown, a stop plate 130 is disposed on the fixing seat 100 , and one end of the elastic member 420 is fixed on the stop plate 130 , thereby ensuring the installation stability of the elastic member 420 .

[0046] In an alternative embodiment, there is one rotating plate 200, one transmission assembly 300, and one slip mechanism 400. The transmission assembly 300 is arranged in the middle of the rotating plate 200. The transmission assembly 300 has a power output end and cooperates with the slip mechanism 400. In an alternative embodiment, there is one rotating plate 200, two transmission assemblies 300, and two slip mechanisms 400. The two transmission assemblies 300 are respectively located at both ends of the rotating plate 200 along its length direction. Each transmission assembly 300 has a power output end and cooperates with the two slip mechanisms 400 respectively. In an alternative embodiment, there are two rotating plates 200, two transmission assemblies 300, and two slip mechanisms 400. The two transmission assemblies 300 are respectively located in the middle of the two rotating plates 200. Each transmission assembly 300 has a power output end and cooperates with the two slip mechanisms 400 respectively. It should be noted that, in the embodiment of the present invention, the number and arrangement of the rotating plate 200, the transmission assembly 300 and the sliding mechanism 400 can be arbitrarily selected according to the above description and are not limited to the embodiment ( Figure 1 ) shown in the arrangement.

[0047] like Figure 2-Figure 3 As shown, the transmission assembly 300 includes a plurality of transmission gears 310 meshing in sequence, one of the plurality of transmission gears 310 cooperates with the power member, and the transmission gears 310 located on both sides of the plurality of transmission gears 310 constitute the power output end of the transmission assembly 300; a gear mounting plate 110 for mounting the plurality of transmission gears 310 is provided on the fixing seat 100. It can be understood that fixing the transmission gear 310 by the gear mounting plate 110 can improve the reliability of the transmission gear 310, not only can the deceleration and force increase be achieved, but also the use of this transmission mode can bear a larger load due to the different weights of the folding screen, saving space.

[0048] It should be supplemented that, in the present embodiment, the number of the transmission gears 310 is four. In other embodiments of the present utility model, the number of the transmission gears 310 can be selected according to actual needs and is not limited to four.

[0049] like Figure 2-Figure 3As shown, the slip mechanism 400 of this embodiment further includes a rotating shaft 430, one end of which is connected to the fixing seat 100, and the other end is passed through the connecting member 410 and the transmission gear 310 constituting the power output end of the transmission assembly 300, and the elastic member 420 is a spring and is sleeved on the rotating shaft 430. It can be understood that the rotating shaft 430 is independently provided as a supporting rotating shaft of the connecting member 410 and the transmission gear 310 constituting the power output end of the transmission assembly 300, which can ensure that the connecting member 410 can rotate synchronously with the transmission gear 310 when in the transmission position, and can also play a guiding role when the connecting member 410 moves from the transmission position to the slip position, and can also serve as a guiding structure of the elastic member 420 to prevent the elastic member 420 from bending when being compressed and stretched.

[0050] like Figure 1 As shown, the power member of this embodiment includes a drive motor 500, which is installed on the fixing seat 100, and the drive motor 500 is in transmission cooperation with the power input end of the transmission assembly 300. The drive motor 500 is used to drive the transmission assembly 300, which can simplify the structure of the power member, thereby helping to simplify the structure of the driving mechanism of the folding screen.

[0051] like Figure 1 As shown, the power part of this embodiment also includes a gear box 600, the input end of the gear box 600 cooperates with the motor shaft of the drive motor 500, and the output end cooperates with the power input end of the transmission assembly 300. It can be understood that the gear box 600 is a gear transmission assembly, which is assembled in the housing. It can be a planetary gear transmission assembly, or a single-stage transmission or a multi-stage transmission. The number of stages of the planetary gear box 600 is not limited, and it can be one stage, two stages or multiple stages. The input end of the gear box 600 is connected to the drive motor 500, which can not only achieve deceleration and force increase, but also adopt this transmission mode to bear a larger load due to the different weights of the folding screen, saving space.

[0052] like Figure 2 and Figure 3 As shown, optionally, a mounting seat 120 is provided on the fixing seat 100 of this embodiment, and the mounting seat 120 is used to mount the driving motor 500 and the gear box 600. Thus, the mounting stability of the driving motor 500 and the gear box 600 can be improved.

[0053] Of course, it should be additionally explained here that, in other embodiments of the present invention, the power member can also be a driving source provided at other positions of the folding screen, which can provide power to the transmission assembly 300 through a terminal line connected to the connection port.

[0054] The utility model also discloses an electronic device, including a folding screen and the aforementioned driving mechanism of the folding screen, wherein the folding screen includes two screen brackets 700 and a flexible screen mounted on the screen brackets 700. Due to the aforementioned driving mechanism of the folding screen, when a sudden external force acts on the folding screen to open the folding screen (external force pries the folding screen apart or the screen falls, etc.), the transmission assembly 300 of the driving mechanism can be disengaged from the transmission cooperation with the screen bracket 700 of the folding screen, which protects the transmission assembly 300 and the power parts, avoids excessive reverse power transmission causing damage to the transmission assembly 300 and the power parts, and thus improves the reliability of the electronic device.

[0055] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0056] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A sliding mechanism, characterized in that: The slipping mechanism is used to realize power transmission between the transmission component (300) of the folding screen and the screen bracket (700), and to prevent the reverse driving force acting on the screen bracket (700) from being transmitted to the transmission component (300). The slipping mechanism includes a connecting member (410) and an elastic member (420). The connecting member (410) is slidable relative to the screen bracket (700) and can drive the screen bracket (700) to rotate. It has a transmission position that cooperates with the power input end of the transmission component (300) and a slipping position that is disengaged from the power output end of the transmission component (300). In the transmission position, the transmission component (300) can drive the connecting member (410) to rotate so that the screen bracket (700) rotates; the elastic member (420) is used to keep the connecting member (410) in the transmission position.

2. The sliding mechanism according to claim 1, characterized in that: The power output end of the transmission assembly (300) is provided with a first clutch tooth (320), and the connecting member (410) is provided with a second clutch tooth (412); wherein: In the transmission position, the first clutch tooth (320) and the second clutch tooth (412) are plugged into each other, and the first clutch tooth (320) and the second clutch tooth (412) are capable of rotating synchronously; In the slipping position, the second clutch tooth (412) can rotate relative to the first clutch tooth (320) and disengage from the first clutch tooth (320).

3. The sliding mechanism according to claim 1, characterized in that: The screen bracket (700) is provided with a rotating plate (200), the rotating plate (200) is provided with a sliding groove (210) extending along the rotation axis of the screen bracket (700), and the connecting member (410) has a sliding portion (411) matched with the sliding groove (210).

4. A driving mechanism for a folding screen, characterized in that: include: A fixing seat (100), two ends of the fixing seat (100) being rotatably connected to two screen brackets (700) of the folding screen respectively; A transmission assembly (300), wherein the transmission assembly (300) is mounted on the fixing seat (100), and a power input end of the transmission assembly (300) is connected to a power member; The sliding mechanism as described in any one of claims 1 to 3, wherein the sliding mechanism comprises a connecting member (410) and an elastic member (420), wherein the connecting member (410) is rotatably mounted on the fixed seat (100), one end of the elastic member (420) abuts against the connecting member (410), and the other end of the elastic member (420) abuts against the fixed seat (100).

5. The driving mechanism of the folding screen according to claim 4, characterized in that: The two screen brackets (700) are each provided with a rotating plate (200), the transmission assembly (300) has two power output ends, and there are two slipping mechanisms, each of which is connected to a rotating plate (200) and a power output end.

6. The driving mechanism of the folding screen according to claim 4, characterized in that: At least one of the screen brackets (700) is provided with a rotating plate (200), the transmission components (300) are arranged in pairs, and the two transmission components (300) arranged in pairs are respectively located at two ends of the rotating plate (200) along its length direction, and at least one of the two transmission components (300) arranged in pairs cooperates with the power component.

7. The driving mechanism of the folding screen according to claim 4, characterized in that: The transmission assembly (300) comprises a plurality of transmission gears (310) meshed in sequence, one of the plurality of transmission gears (310) cooperates with the power member, and the transmission gears (310) located on both sides of the plurality of transmission gears (310) constitute the power output end of the transmission assembly (300); and a gear mounting plate (110) for mounting the plurality of transmission gears (310) is provided on the fixing seat (100).

8. The driving mechanism of the folding screen according to claim 4, characterized in that: The power member comprises: A driving motor (500), wherein the driving motor (500) is mounted on the fixing seat (100); A gear box (600), wherein an input end of the gear box (600) cooperates with the motor shaft of the drive motor (500), and an output end cooperates with the power input end of the transmission assembly (300).

9. The driving mechanism of the folding screen according to claim 4, characterized in that: The sliding mechanism further comprises a rotating shaft (430), one end of the rotating shaft (430) is connected to the fixing seat (100), and the other end is passed through the connecting member (410), and the elastic member (420) is a spring and is sleeved on the rotating shaft (430).

10. An electronic device, characterized in that: It comprises a folding screen and a driving mechanism for the folding screen as claimed in claim 4, wherein the folding screen comprises two screen supports (700) and a flexible screen mounted on the screen supports (700).

Images