Folding driving device and folding screen equipment

Abstract

The invention provides a folding driving device and folding screen equipment. The folding driving device comprises a supporting frame with a containing groove, a guide rail fixedly connected with the supporting frame, a sliding block slidably connected with the guide rail, a switch sequentially penetrating through the supporting frame and the guide rail and fixedly connected with the sliding block, and two driving motors fixed to the two opposite sides of the sliding block. The first gears are fixed to the output ends of the two driving motors, the two speed reducers are fixedly connected with the supporting frame, the second gears are fixed to the input ends of the two speed reducers, the driving motors and the speed reducers are arranged in the sliding direction of the sliding block, the driving motors and the supporting frame are arranged in a spaced mode, and the second gears are meshed with the first gears respectively. When the folding driving device is applied to the folding screen equipment, an electric folding mode and a manual folding mode of the folding screen equipment can be achieved, and the user experience feeling is improved.

Description

Technical Field

[0001] The present invention relates to the field of folding technology, and in particular to a folding drive device and a folding screen device. Background Art

[0002] Folding screen devices, such as folding screen mobile phones, are a new type of smart phones that can be flexibly folded. They have two modes of folding: single-screen or dual-screen. Whether it is a single-screen folding mobile phone or a dual-screen folding mobile phone, the purpose is to fold the phone to make it easier for users to carry.

[0003] The folding screen device in the related technology mainly includes a first folding screen, a second folding screen, a folding drive device and a transmission mechanism connected to the folding drive device. The first folding screen and the second folding screen are respectively rotationally connected with the transmission mechanism. After the folding drive device is turned on, the first folding screen and the second folding screen are driven by the transmission mechanism to fold.

[0004] Although the folding screen device in the related art can realize the electric folding of the first folding screen and the second folding screen, this purely electric folding method is too single, which will result in a poor user experience, and when the user encounters a low battery situation, the folding screen device will not be able to fold.

[0005] Therefore, it is necessary to provide a new folding drive device and folding screen device to solve the above technical problems. Summary of the invention

[0006] The purpose of the present invention is to provide a new folding drive device and a folding screen device to solve the problem that the folding screen device in the related art adopts a pure electric folding method which is too single, resulting in a poor user experience, and when the user encounters a low battery situation, the folding screen device cannot be folded.

[0007] In the first aspect, the present invention provides a folding drive device, which is applied to a folding screen device, comprising a support frame with a receiving groove, a guide rail received in the receiving groove and fixedly connected to the support frame, a slider slidably connected to the guide rail and spaced apart from the support frame, a switch that sequentially passes through the support frame and the guide rail and is fixedly connected to the slider, two driving motors fixed on opposite sides of the slider, first gears respectively fixed to output ends of the two driving motors, two reducers received in the receiving groove and fixedly connected to the support frame, and second gears respectively fixed to input ends of the two reducers, the driving motor and the reducer are arranged along the sliding direction of the slider, the driving motor is spaced apart from the support frame, the second gears are respectively meshed with the first gears, and the switch is moved to drive the slider and the driving motor to slide relative to the guide rail and the support frame to achieve meshing or separation of the first gear and the second gear.

[0008] Preferably, the first gear and the second gear are end face gears meshing with each other along their respective axial directions; any end face of one of the first gear and the second gear is provided with an insert portion protruding and extending outward along its axial direction, and any end face of the other one of the first gear and the second gear is provided with a slot penetrating therethrough along its axial direction, and the insert portion is inserted into the slot.

[0009] Preferably, a first annular sleeve is sleeved and fixed on one end of the drive motor close to the reducer; a second annular sleeve is sleeved and fixed on one end of the reducer close to the drive motor; an end of the second sleeve close to the first sleeve is provided with an annular clamping portion which protrudes outward along its axial direction and is inserted into the first sleeve and forms a sliding connection with the first sleeve.

[0010] Preferably, the surface of the guide rail facing the support frame is provided with an inwardly recessed groove, and the opposite sides of the groove are respectively provided with outwardly protruding and arc-shaped limiting grooves; the folding drive device also includes an elastic member, and the elastic member includes a fixed part received in the groove and sleeved on the switch, elastic arms protruding outward from the opposite sides of the fixed part, and an arc-shaped limiting part protruding from one end of the elastic arm away from the fixed part, and the switch passes through the fixed part and the bottom of the groove in sequence, and is fixedly connected to the slider, and when the limiting part slides to the position of the limiting groove, the limiting part slides into the limiting groove under the elastic action of the elastic arm.

[0011] Preferably, the guide rail includes a bottom plate fixed to the support frame, a first stacked portion protruding and extending from the middle area of ​​the bottom plate away from the support frame surface, a second stacked portion protruding and extending from a partial area of ​​the first stacked portion, and extension portions protruding outward and extending from opposite sides of the second stacked portion and exceeding the first stacked portion, the extension portions being spaced apart from the bottom plate; the slider includes two relatively spaced sliders, a connecting plate connecting one end of the two sliders, and a pressing portion formed by bending and extending from one end of the slider away from the connecting plate, and the sides of the two sliders close to each other are respectively provided with sliding grooves formed by inward depressions; the two extension portions are respectively inserted into the sliding grooves of the two sliders, and the slider is slidably connected to the guide rail, the switch passes through the bottom plate and the first stacked portion and is fixedly connected to the connecting plate, and the two drive motors are respectively fixed to the side of the two sliders away from the support frame and pressed against the corresponding pressing portions.

[0012] Preferably, the support frame is provided with an inwardly recessed slot near the drive motor, the drive motor is spaced apart from the bottom of the slot, and the length of the slot along the sliding direction of the slider is equal to the length of the drive motor plus the sliding distance of the switch.

[0013] Preferably, the folding drive device also includes a bracket accommodated in the accommodating groove and fixedly connected to the support frame, and both sides of the bracket are respectively provided with inwardly recessed arc grooves, and one end of the reducer away from the drive motor is inserted into the arc groove, and the output end of the reducer passes through the bracket and extends in a direction away from the drive motor.

[0014] Preferably, a support plate extending outwardly and protruding is provided on the inner side of the support frame, and a support groove recessed inwardly is provided on the support plate at positions corresponding to the drive motor and the reducer.

[0015] Preferably, the support frame and the guide rail are both provided with waist-shaped holes penetrating therethrough at positions corresponding to the switch, and the switch passes through the waist-shaped holes on the support frame and the guide rail in sequence and forms a fixed connection with the slider.

[0016] In the second aspect, the present invention provides a folding screen device, which includes the folding drive device as described above and a first folding screen and a second folding screen that are respectively rotationally connected to the output ends of the two reducers; the switch passes through the connection between the first folding screen and the second folding screen, and when the first gear is engaged with the second gear, the first folding screen and the second folding screen are electrically opened and closed, and when the first gear is separated from the second gear, the first folding screen and the second folding screen are manually opened and closed.

[0017] Compared with the related art, the folding drive device in the present invention fixes the guide rail and the reducer to the support frame, fixes the drive motor to the slider, and forms a sliding connection between the slider and the guide rail. A switch is also designed to pass through the support frame and the guide rail in sequence and form a fixed connection with the slider. When the folding drive device is applied to the folding screen device, not only can the electric folding method of the folding screen device be realized through the drive motor, but also the drive motor and the reducer can be separated by turning the switch, thereby realizing a manual folding method, enriching the folding method of the folding screen device to enhance the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which: Figure 1 A schematic diagram of the three-dimensional structure of the folding drive device provided in the first embodiment of the present invention; Figure 2 A partial structural exploded view of the folding drive device provided in the first embodiment of the present invention; Figure 3 A partial structural exploded view of a driving motor and a reducer corresponding to the folding driving device provided in the first embodiment of the present invention from a first viewing angle; Figure 4 A second perspective view of the partial structural decomposition of the drive motor and the reducer corresponding to the folding drive device provided in the first embodiment of the present invention; Figure 5 A partial structural exploded view of a guide rail, a switch and an elastic member in a folding drive device provided in Embodiment 1 of the present invention; Figure 6 A schematic diagram of the front structure of a folding screen device provided in Embodiment 2 of the present invention; Figure 7 A schematic diagram of the back structure of a folding screen device provided in Embodiment 2 of the present invention; Figure 8 This is a structural schematic diagram of the folding screen device provided in Embodiment 2 of the present invention, in which a part of the structure is hidden to expose the folding drive device.

[0019] Among them, 100, folding drive device; 1, support frame; 11, card slot; 12, support plate; 121, support slot; 13, waist hole; 14, accommodating slot; 2, guide rail; 21, groove; 211, limit slot; 22, bottom plate; 23, first stacking part; 24, second stacking part; 25, extension part; 3, slider; 31, slide plate; 311, slide slot; 32, connecting plate; 33, pressing part; 4, switch; 5, drive motor; 51, first sleeve; 52, output end of drive motor; 6, first gear; 61, insertion part; 7, reducer; 71, second sleeve; 711, card connection part; 72, input end of reducer; 8, second gear; 81, slot; 9, elastic member; 91, fixing part; 92, elastic arm; 93, limit part; 101, bracket; 1011, arc groove; 110, circuit board;

[0020] 200, folding screen device; 201, first folding screen; 202, second folding screen. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Embodiment 1 The embodiment of the present invention provides a folding drive device 100, Figures 1 to 5 As shown, it includes a support frame 1 with a receiving groove 14, a guide rail 2 received in the receiving groove 14 and fixedly connected to the support frame 1, a slider 3 slidably connected to the guide rail 2 and spaced apart from the support frame 1, a switch 4 sequentially passing through the support frame 1 and the guide rail 2 and fixedly connected to the slider 3, two drive motors 5 fixed on opposite sides of the slider 3, a first gear 6 respectively fixed to the output ends 52 of the two drive motors, two reducers 7 received in the receiving groove 14 and fixedly connected to the support frame 1, and a second gear 8 respectively fixed to the input ends 72 of the two reducers, the drive motor 5 and the reducer 7 are arranged along the sliding direction of the slider, the drive motor 5 is spaced apart from the support frame 1, the second gear 8 is respectively meshed with the first gear 6, and the switch 4 is moved to drive the slider 3 and the drive motor 5 to slide relative to the guide rail 2 and the support frame 1, so as to achieve the meshing or separation of the first gear 6 and the second gear 8.

[0023] Among them, the folding drive device 100 is applied to a folding screen device, such as a folding mobile phone, to realize the folding of the folding screen device.

[0024] The support frame 1 is provided with an inwardly recessed slot 11 near the driving motor 5, the driving motor 5 is spaced apart from the bottom of the slot 11, and the length of the slot 11 along the sliding direction of the slider 3 is equal to the length of the driving motor 5 plus the sliding distance of the switch 4. This design can not only realize the spacing between the driving motor 5 and the support frame 1, but also limit the sliding distance of the slider 3 by the length of the slot 11.

[0025] The inner side of the support frame 1 is provided with a support plate 12 extending outwardly, and the support plate 12 is provided with a support groove 121 formed by being recessed inwardly at the position corresponding to the driving motor 5 and the reducer 7; in this embodiment, the support plate 12 includes two, one of which is used to support the driving motor 5 and the reducer 7, and the other is used to support the reducer 7. This design can facilitate the fixing of the driving motor 5 and the reducer 7, and make it convenient to connect the input end 72 of the reducer with the output end 52 of the driving motor.

[0026] The support frame 1 and the guide rail 2 are provided with waist-shaped holes 13 passing through the positions corresponding to the switch 4. The switch 4 passes through the waist-shaped holes 13 on the support frame 1 and the guide rail 2 in sequence and forms a fixed connection with the slider 3. The length of the waist-shaped hole 13 is equal to the sliding distance of the slider 3. Accordingly, the switch 4 is T-shaped so as to pass through the support frame 1 and the guide rail 2 and has a portion exposed outside the support frame 1. This design can facilitate the switch 4 to form a sliding connection with the support frame 1 and the guide rail 2 respectively.

[0027] The surface of the guide rail 2 facing the support frame 1 is provided with an inwardly recessed groove 21, and the opposite sides of the groove 21 are respectively provided with outwardly protruding and arc-shaped limiting grooves 211; the folding drive device 100 also includes an elastic member 9, which includes a fixed portion 91 accommodated in the groove 21 and sleeved on the switch 4, elastic arms 92 protruding outward from the opposite sides of the fixed portion 91, and an arc-shaped limiting portion 93 protruding from one end of the elastic arm 92 away from the fixed portion 91. The switch 4 passes through the fixed portion 91 and the groove bottom of the groove 21 in turn, and is fixedly connected to the slider 3. When the limiting portion 93 slides to the position of the limiting groove 211, the limiting portion 93 slides into the limiting groove 211 under the elastic action of the elastic arm 92. This design can limit the position of the slider 3 through the limiting action of the limiting portion 93 sliding into the limiting groove 211 when the switch 4 slides, so as to avoid the drive motor 5 on the slider 3 from shifting during operation, so as to ensure the normal use of electric folding or manual folding.

[0028] The guide rail 2 includes a bottom plate 22 fixed to the support frame 1, a first stacked portion 23 protruding from the middle area of ​​the bottom plate 22 away from the surface of the support frame 1, a second stacked portion 24 protruding from a part of the first stacked portion 23, and an extension portion 25 protruding outward from opposite sides of the second stacked portion 24 and extending beyond the first stacked portion 23, and the extension portion 25 is spaced from the bottom plate 22; the slider 3 includes two relatively spaced slide plates 31, a connecting plate 32 connecting one end of the two slide plates 31, and a bent end extending from one end of the slide plate 31 away from the connecting plate 32. The two slide plates 31 are respectively provided with a slide groove 311 formed by an inward depression on one side of the two slide plates 31; the two extensions 25 are respectively inserted into the slide grooves 311 of the two slide plates 31, and the slider 3 is slidably connected to the guide rail 2; the switch 4 passes through the bottom plate 22 and the first stacked portion 23 and is fixedly connected to the connecting plate 32; the two drive motors 5 are respectively fixed to the side of the two slide plates 31 away from the support frame 1, and are pressed to the corresponding press portion 33; the waist-shaped holes 13 on the guide rail 2 sequentially penetrate the corresponding positions of the bottom plate 22 and the first stacked portion 23. This design can realize the sliding design of the slider 3 and the guide rail 2 in the narrow receiving groove 14 of the support frame 1, so that the structure of the folding drive device 100 is compact and suitable for the small space of the folding screen device.

[0029] The first gear 6 and the second gear 8 are face gears meshing with each other along their respective axial directions; any end face of one of the first gear 6 and the second gear 8 is provided with an insertion portion 61 protruding outwardly along its axial direction, and any end face of the other of the first gear 6 and the second gear 8 is provided with a slot 81 penetrating therethrough along its axial direction, and the insertion portion 61 is inserted into the slot 81. By designing the first gear 6 and the second gear 8 as face gears, and designing matching insertion portions 61 and slots 81 on the first gear 6 and the second gear 8, it is ensured that the first gear 6 of the driving motor 5 and the second gear 8 of the speed reducer 7 can achieve gear meshing and separation when connected or separated, thereby ensuring the normal rotation of the folding drive device 100. In this embodiment, the insertion portion 61 is provided on the first gear 6, and the slot 81 is provided on the second gear 8.

[0030] A first annular sleeve 51 is sleeved and fixed on one end of the driving motor 5 close to the reducer 7; a second annular sleeve 71 is sleeved and fixed on one end of the reducer 7 close to the driving motor 5; a clamping portion 711 protruding outwardly and extending along its axial direction and in an annular shape is provided on one end of the second sleeve 71 close to the first sleeve 51, and the clamping portion 711 is inserted into the first sleeve 51 and forms a sliding connection with the first sleeve 51. This design can further ensure that the first gear 6 of the driving motor 5 and the second gear 8 of the reducer 7 can achieve gear meshing and separation when connected or separated, thereby ensuring the normal rotation of the folding driving device 100.

[0031] The folding drive device 100 further includes a bracket 101 received in the receiving groove 14 and fixedly connected to the support frame 1. Both sides of the bracket 101 are provided with arc grooves 1011 recessed inwardly. The end of the reducer 7 away from the drive motor 5 is inserted into the arc groove 1011, and the output end of the reducer 7 extends through the bracket 101 in a direction away from the drive motor 5. This design can facilitate the fixing effect of the reducer 7 and avoid the reducer 7 from shaking or detaching when the folding drive device 100 is running.

[0032] The folding driving device 100 further includes a circuit board 110 electrically connected to the driving motor 5 .

[0033] In the folding drive device 100 of the present embodiment, if electric folding is required, the first gear 6 and the second gear 8 are kept meshed; if manual folding is required, the first gear 6 of the drive motor 5 is separated from the second gear 8 of the reducer 7 by toggling the switch 4, and the self-locking force of the reducer 7 after separation is greatly reduced, so that manual folding can be achieved; if electric folding is required again, the switch 4 can be toggled again to mesh the first gear 6 of the drive motor 5 with the second gear 8 of the reducer 7 again, and the electric folding can be used normally. In the folding drive device 100 of the present embodiment, the two folding modes of electric folding and manual folding do not interfere with each other.

[0034] When the folding screen device in the related technology is designed based on the electric drive concept, it is often necessary to design a high transmission ratio reducer to increase the torque required for the folding hinge due to the limitations of the length, width and height of the internal space of the folding screen device. The self-locking force of this type of structure is large, and manual folding is difficult to achieve. However, this embodiment realizes a sliding design in a narrow space by designing a sliding connection between the slider 3 and the guide rail 2, and fixing the drive motor 5 to the slider 3. In this way, the drive motor 5 can be separated from the reducer 7 to achieve manual folding.

[0035] The connection between the motor and the reduction device of the folding screen device in the related art is usually transmitted by a flat position or a key. During the switching process of electric or manual folding, this type of structure cannot ensure that the flat position or the key can be realigned after separation and manual folding. However, this embodiment solves the problem of being unable to realign and engage in a small space through the design of end face gears.

[0036] The folding drive device 100 in this embodiment is designed based on the size of the folding screen device, and reasonably allocates the smaller radial width, axial length and longitudinal height space. It has a compact structure, high space utilization, high parts integration and reliability, and realizes switching between electric folding and manual folding, and is suitable for a wider range of scenarios.

[0037] Compared with the related art, the folding drive device 100 in this embodiment fixes the guide rail 2 and the reducer 7 to the support frame 1, fixes the drive motor 5 to the slider 3, and makes the slider 3 form a sliding connection with the guide rail 2, and also designs a switch 4 that passes through the support frame 1 and the guide rail 2 in sequence and forms a fixed connection with the slider 3. In this way, when the folding drive device 100 is applied to the folding screen device, not only can the electric folding mode of the folding screen device be realized through the drive motor 5, but also the drive motor 5 can be separated from the reducer 7 by turning the switch 4, thereby realizing a manual folding mode, enriching the folding mode of the folding screen device to enhance the user experience; in addition, by adding a manual folding mode, the folding screen device can also be manually folded when the power is insufficient to enhance its convenience.

[0038] Embodiment 2 This embodiment provides a folding screen device 200, combined with Figures 6 to 8 As shown, it includes the folding drive device 100 as in the above-mentioned embodiment 1 and the first folding screen 201 and the second folding screen 202 which are respectively rotationally connected with the output ends of the two reducers 7; the switch 4 passes through the connection between the first folding screen 201 and the second folding screen 202, and when the first gear 6 is engaged with the second gear 8, the first folding screen 201 and the second folding screen 202 are electrically opened and closed, and when the first gear 6 is separated from the second gear 8, the first folding screen 201 and the second folding screen 202 are manually opened and closed.

[0039] The first folding screen 201 and the second folding screen 202 are electrically opened and closed by clicking a specific area of ​​the entire screen, which is equivalent to the specific area being a switch to start the drive motor 5.

[0040] There are two situations in which the switch 4 passes through the first folding screen 201 and the second folding screen 202: the first is that the switch 4 is exposed on the first folding screen 201 and the second folding screen 202, which is equivalent to that the outer side surface of the switch 4 protrudes more outward relative to the outer side surfaces of the first folding screen 201 and the second folding screen 202; the second is that the outer side surface of the switch 4 and the outer side surfaces of the first folding screen 201 and the second folding screen 202 are located in the same horizontal plane.

[0041] Since the folding screen device 200 in this embodiment includes the folding drive device 100 in the above-mentioned embodiment 1, it can also achieve the technical effect achieved by the folding drive device 100 in the above-mentioned embodiment 1, which will not be elaborated here.

[0042] The above are merely embodiments of the present invention. It should be pointed out that, for those skilled in the art, improvements can be made without departing from the creative concept of the present invention, but these all fall within the protection scope of the present invention.

Claims

1. A folding drive device, applied to a folding screen device, characterized in that: The folding drive device includes a support frame with a receiving groove, a guide rail received in the receiving groove and fixedly connected to the support frame, a slider slidably connected to the guide rail and spaced apart from the support frame, a switch that sequentially passes through the support frame and the guide rail and is fixedly connected to the slider, two driving motors fixed on opposite sides of the slider, first gears respectively fixed to output ends of the two driving motors, two reducers received in the receiving groove and fixedly connected to the support frame, and second gears respectively fixed to input ends of the two reducers, the driving motor and the reducer are arranged along the sliding direction of the slider, the driving motor and the support frame are spaced apart, the second gears are respectively meshed with the first gears, and the switch is moved to drive the slider and the driving motor to slide relative to the guide rail and the support frame, thereby achieving meshing or separation of the first gear and the second gear.

2. The folding drive device according to claim 1, characterized in that: The first gear and the second gear are end face gears meshing with each other along their respective axial directions; any end face of one of the first gear and the second gear is provided with an insert portion protruding and extending outward along its axial direction, and any end face of the other one of the first gear and the second gear is provided with a slot penetrating therethrough along its axial direction, and the insert portion is inserted into the slot.

3. The folding drive device according to claim 1, characterized in that: A first annular sleeve is fixedly mounted on one end of the drive motor close to the reducer; a second annular sleeve is fixedly mounted on one end of the reducer close to the drive motor; an annular clamping portion is provided at one end of the second sleeve close to the first sleeve, which protrudes outward along its axial direction and is annular; the clamping portion is inserted into the first sleeve and forms a sliding connection with the first sleeve.

4. The folding drive device according to claim 1, characterized in that: The surface of the guide rail facing the support frame is provided with an inwardly recessed groove, and the opposite sides of the groove are respectively provided with outwardly protruding and arc-shaped limiting grooves; the folding drive device also includes an elastic member, which includes a fixed part received in the groove and sleeved on the switch, elastic arms protruding outward from the opposite sides of the fixed part respectively, and an arc-shaped limiting part protruding and extending from one end of the elastic arm away from the fixed part, the switch passes through the fixed part and the bottom of the groove in sequence, and is fixedly connected to the slider, and when the limiting part slides to the position of the limiting groove, the limiting part slides into the limiting groove under the elastic action of the elastic arm.

5. The folding drive device according to claim 1, characterized in that: The guide rail includes a bottom plate fixed to the support frame, a first stacked portion protruding and extending from the middle area of ​​the bottom plate away from the support frame surface, a second stacked portion protruding and extending from a partial area of ​​the first stacked portion, and extension portions protruding outward and extending from opposite sides of the second stacked portion and exceeding the first stacked portion, wherein the extension portion is spaced apart from the bottom plate; the slider includes two relatively spaced sliders, a connecting plate connecting one end of the two sliders, and a pressing portion formed by bending and extending from one end of the slider away from the connecting plate, and the sides of the two sliders close to each other are respectively provided with sliding grooves formed by inward depressions; the two extension portions are respectively inserted into the sliding grooves of the two sliders, and the slider is slidably connected to the guide rail, the switch passes through the bottom plate and the first stacked portion and is fixedly connected to the connecting plate, and the two driving motors are respectively fixed to the sides of the two sliders away from the support frame and pressed against the corresponding pressing portions.

6. The folding drive device according to claim 1, characterized in that: The support frame is provided with an inwardly recessed slot near the drive motor, the drive motor is spaced apart from the bottom of the slot, and the length of the slot along the sliding direction of the slider is equal to the length of the drive motor plus the sliding distance of the switch.

7. The folding drive device according to claim 1, characterized in that: The folding drive device also includes a bracket accommodated in the accommodating groove and fixedly connected to the support frame, and both sides of the bracket are respectively provided with inwardly recessed arc grooves, one end of the reducer away from the drive motor is inserted into the arc groove, and the output end of the reducer passes through the bracket and extends in a direction away from the drive motor.

8. The folding drive device according to claim 1, characterized in that: A support plate extending outwardly and protruding is provided on the inner side of the support frame, and a support groove recessed inwardly is provided on the support plate corresponding to the positions of the drive motor and the reducer.

9. The folding drive device according to claim 1, characterized in that: The support frame and the guide rail are both provided with waist-shaped holes penetrating therethrough at positions corresponding to the switch, and the switch passes through the waist-shaped holes on the support frame and the guide rail in sequence and forms a fixed connection with the slider.

10. A folding screen device, characterized in that: The folding screen device includes a folding drive device as described in any one of claims 1 to 9 and a first folding screen and a second folding screen that are respectively rotationally connected to the output ends of the two reducers; the switch passes through the connection between the first folding screen and the second folding screen, and when the first gear is engaged with the second gear, the first folding screen and the second folding screen are electrically opened and closed, and when the first gear is separated from the second gear, the first folding screen and the second folding screen are manually opened and closed.

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