Sliding and rolling internal supporting type curled screen electronic equipment

Abstract

The invention relates to a sliding and rolling inner supporting type curled screen electronic device which comprises a curled base and a curled screen assembly, the curled base comprises a fixed base and a movable base, the curled screen assembly comprises a curled screen and a rolling and unrolling device, the curled screen is unfolded and rolled up along with movement of the movable base, and the rolling and unrolling device comprises a winding roller, a power roller and a transmission part. The movable seat comprises a seat body and an extension body. On one hand, through the inner supporting face which is formed by the extension body and the base body and used for internally supporting the curly screen, in the folding and unfolding process of the curly screen, the inner supporting face can synchronously extend or retract to be matched with the size of the curly screen in real time, and the supporting requirement of the curly screen folded and unfolded to any position is flexibly met; on the other hand, the extension body and the curly screen are driven by the same power roller to stretch and retract, the surface stress of the curly screen is reduced, the stretch and retract texture of the curly screen is greatly improved, the user experience is improved, in addition, the transmission response speed is high, the transmission efficiency is high, and the operation power consumption of the electronic equipment is effectively reduced.

Description

Technical Field

[0001] The invention belongs to the field of communication equipment, and in particular relates to a sliding and internally supported curling screen electronic device. Background Art

[0002] As we all know, in order to display more abundant information to users, improve the efficiency of human-computer communication and enhance the user experience, various electronic equipment terminals (such as mobile phones, tablet computers, etc.) are constantly updated and replaced, and the screen size is getting larger and larger. Correspondingly, electronic equipment terminals with large screens will bring problems of inconvenience in carrying and storage.

[0003] Therefore, in order to solve the above problems, flexible rollable screen technology came into being, which mainly obtains display segments of different sizes of the screen by rolling the rollable screen on a roll shaft and releasing or rolling up the rollable screen. For example, the Chinese patent with publication number CN111508360B discloses a flexible screen assembly and an electronic device, the flexible screen assembly comprising: a shell, the shell is provided with an opening; a rotating shaft, the rotating shaft is arranged inside the shell; a flexible screen, one end of the flexible screen is connected to the rotating shaft, the flexible screen can be rolled up on the rotating shaft, and the other end of the flexible screen can extend out of the shell through the opening; a telescopic bracket, the telescopic bracket is respectively connected to the shell and the flexible screen; a first driving mechanism, the first driving mechanism is installed on the shell, and the first driving mechanism is connected to the rotating shaft to drive the rotating shaft to rotate; wherein, during the unfolding of the flexible screen, the telescopic bracket extends to support the part of the flexible screen located outside the shell.

[0004] However, in actual use, the prior art has the following technical defects: 1. The existing technology mainly uses the support of the telescopic bracket to increase the surface tension of the screen to achieve the effect of "flattening" the screen. It is only applicable when the screen is fully opened and the telescopic bracket is fully extended (when the telescopic bracket is not fully opened, the telescopic bracket is easy to fold under external force, so the stability of the support cannot be guaranteed), but it cannot achieve effective support for the screen at any extended size; 2. The prior art uses a driving mechanism to drive the flexible screen to retract and extend and drives the telescopic bracket to retract and extend, which increases the burden on the flexible screen and easily causes the flexible screen to be blocked or deformed. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an improved sliding and internally supported curling screen electronic device.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: A sliding and internally supported curling screen electronic device comprises a curling seat and a curling screen assembly, wherein the curling seat comprises a fixed seat and a movable seat, the curling screen assembly comprises a curling screen and a winder, the curling screen is unfolded and retracted with the movement of the movable seat, the winder comprises a winding roller, a power roller, and a transmission member, the movable seat comprises a seat body and an extension body, wherein one end of the curling screen is fixed on the seat body; the extension body bypasses the power roller, and one end of the extension body is relatively fixed to the seat body, and the other end extends into the interior of the seat body and is slidably connected to the fixed seat, the seat body and the extension body form an inner supporting surface of the inner supporting curling screen, and as the curling screen is unfolded or retracted, the inner supporting surface is synchronously extended or retracted.

[0007] According to a specific implementation and preferred aspect of the present invention, the inner support surface includes a first inner support surface formed on the seat body and a second inner support surface formed on the extension body. As the rolled screen is unfolded or rolled up, the first inner support surface is statically arranged relative to the part of the rolled screen to be supported, and the second inner support surface is synchronously extended and gradually supports the rolled screen or synchronously retracted and gradually separated from the rolled screen. Here, as the rolled screen is folded and unfolded, a part of the screen can always be kept in the inner support, ensuring the support of the screen.

[0008] Preferably, the first inner supporting surface and the second inner supporting surface are arranged flush with each other.

[0009] Preferably, the roll-up screen is divided into a first screen body fixed to the base body at one end, and a second screen body wound on a winding roller from the other end of the first screen body, wherein the first inner supporting surface and the second inner supporting surface respectively support the first screen body and the second screen body. Here, as the roll-up screen is retracted and extended, the first inner supporting surface and the first screen body can always remain in a relatively static state, and the extension or retraction of the second inner supporting surface is synchronized with the unfolding or retraction of the second screen body, thereby avoiding relative sliding and friction, which is conducive to reducing wear and reducing the power consumption of the reel and unwinder, and extending the battery life of the electronic device.

[0010] Specifically, the width of the second inner supporting surface is greater than or equal to the width of the second screen body. Here, it is ensured that the second screen body is in a flattened state after being unwound from the winding roller.

[0011] According to another specific implementation and preferred aspect of the present invention, the extension body extends into the end of the seat body and is spaced apart from the inner wall of the seat body, thereby avoiding contact between the extension body and the seat body and reducing friction.

[0012] According to another specific implementation and preferred aspect of the present invention, the extension body includes a plurality of sheets extending along the axial direction of the power roller and distributed side by side, and a relatively fixed flexible plate covering the surface of the plurality of sheets. The power roller drives the plurality of sheets to move along the direction of the rolling screen to be retracted and extended, and the flexible plate is retracted and extended accordingly and forms internal support for the rolling screen synchronously. Here, the flexible plate forms a full-coverage internal support effect for the rolling screen, and the rolling screen is evenly stressed so as to be stably unfolded or retracted.

[0013] Preferably, the two ends of the power roller are respectively provided with a plurality of transmission teeth spaced around the center line of the power roller, and the two ends of each sheet are provided with plug-in blocks matching the gap between two adjacent transmission teeth, and as the power roller rotates, the plurality of plug-in blocks are sequentially inserted into the gap and drive the flexible plate body to retract and expand. This is conducive to accurately controlling the extension or retraction distance of the extension body, and the structure is simple and reliable.

[0014] Specifically, an arc-shaped guide surface is formed between each two adjacent transmission teeth, and each plug-in block includes a block body fixedly connected to the corresponding sheet body and a column arranged at the end of the block body. As the power roller rotates, the column maintains the gap in contact with the arc-shaped guide surface to enter or move out of the gap. Here, under the guidance of the arc-shaped guide surface, it is convenient for the plug-in block to accurately enter the gap during the rotation of the power roller to implement transmission, and at the same time, it can improve the smoothness of the extension or retraction of the extension body and enhance the product texture.

[0015] According to another specific implementation and preferred aspect of the present invention, the fixed seat includes a seat body and guide modules arranged on the inner walls of the seat body on both sides, wherein the seat body is inserted into the seat body and is slidably connected to the guide modules, and the seat body and the inner wall of the seat body are kept in contact; the opposite sides of the extended body are slidably connected to the guide modules. Here, the structure is compact and stable, which effectively improves the smoothness of the movement of the mobile seat relative to the reference seat and optimizes the user experience.

[0016] Preferably, the seat body includes a seat bottom plate, a seat end plate connected to the seat bottom plate on a side away from the seat body, and two seat side plates connected to opposite sides of the seat bottom plate, wherein each seat side plate is bent inward from the top to form a pressure plate, and as the rolling screen is folded and unfolded, the two pressure plates are synchronously pressed outward on the two side edges of the rolling screen. Here, the problem of "warping edge" is prevented in the early stage of unwinding the rolling screen from the winding roller, ensuring that the rolling screen is stably unfolded or rolled up.

[0017] Specifically, the cross section of the seat end plate is arc-shaped, the winding roller is installed on the inner side of the arc and forms an inlet and outlet with the top of the seat end plate, and the curling screen passes through the inlet and outlet from the winding roller and is fixedly connected to the seat body.

[0018] In addition, the winding roller and the power roller are rotatably connected to the fixed seat; the transmission member includes a first transmission gear and a second transmission gear respectively arranged at both ends of the winding roller and the power roller, and a third transmission gear meshing with the first transmission gear and the second transmission gear; and / or, the power roller is driven by at least one motor; and / or, the winder also includes a slide trough body fixedly arranged inside the fixed seat and extending along the retraction and expansion direction of the curling screen, and a rack that bypasses the power roller and meshes with it, wherein one end of the rack is inserted into the slide trough body, and slides synchronously along the slide trough body as the power roller rotates.

[0019] Due to the implementation of the above technical solution, the present invention has the following advantages compared with the prior art: The prior art mainly utilizes the support of the telescopic bracket to increase the surface tension of the screen to achieve the effect of "flattening" the screen. It is only applicable when the screen is fully opened and the telescopic bracket is fully extended, and it is impossible to achieve effective support for the screen at any extended size. Moreover, the flexible screen is driven to retract and extend by a driving mechanism and the telescopic bracket is driven to retract, which increases the burden on the flexible screen and easily causes the flexible screen to be blocked or deformed. The present application designs the structure of the sliding internally supported curling screen electronic device as a whole, which ingeniously solves the deficiencies and defects of the prior art. After adopting the electronic device, when the power roller drives the winding roller to rotate to retract the curling screen, the power roller synchronously drives the extension body and the seat body, so that the inner supporting surface of the internally supported curling screen formed by the seat body and the extension body is synchronously retracted to match the changes of the curling screen during retraction in real time. When the power roller drives the winding roller to rotate to unfold the curling screen, the power roller synchronously drives the extension body and the seat body, so that the inner supporting surface of the internally supported curling screen formed by the seat body and the extension body is synchronously extended to match the curling screen in real time. Changes during expansion; therefore, compared with the prior art, the present invention, on the one hand, forms an inner supporting surface of the curling screen through the extension body and the seat body. During the expansion and contraction process of the curling screen, the inner supporting surface can be synchronously extended or retracted to match the size of the curling screen in real time, and flexibly meet the support requirements of the curling screen when it is folded and extended to any position; on the other hand, the expansion and contraction movements of the extension body and the curling screen are driven separately based on the same power roller, which reduces the force on the surface of the curling screen, greatly improves the expansion and contraction texture of the curling screen, and enhances the user experience. In addition, the transmission response speed is fast, the transmission efficiency is high, and the operating power consumption of the electronic equipment is effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the sliding and internally supported curling screen electronic device of the present invention (in unfolded state); Figure 2 for Figure 1 A schematic diagram of the main view; Figure 3 for Figure 2 AA section view; Figure 4 for Figure 1 Schematic diagram of structural decomposition; Figure 5 for Figure 4 A magnified schematic diagram of the structure at B in the middle; Figure 6 for Figure 4 A schematic diagram of the structural decomposition and enlargement of the middle extension body; Figure 7It is a schematic diagram of the three-dimensional structure of the sliding and internally supported curling screen electronic device of the present invention (in the rolled-up state); Figure 8 for Figure 7 A schematic diagram of the main view; Fig. 9 for Figure 8 Schematic diagram of CC section; Among them: 1, curling seat; 10, fixed seat; 100, seat body; a0, seat bottom plate; a1, seat end plate; a2, seat side plate; a20, pressure plate; 101, guide module; c1, first slide groove; c2, second slide groove; 11, movable seat; 110, seat body; b, inner support template; t, slide bar; 111, extension body; d0, sheet body; d00, plug-in block; d000, block body; d001, column; d1, flexible plate body; m, inner support surface; m1, first inner support surface; m2, second inner support surface; 2. Curling screen assembly; 20. Curling screen; 201. First screen body; 202. Second screen body; 21. Winder; 210. Winding roller; k. Inlet and outlet; 211. Power roller; e. Transmission gear; 212. Transmission member; f1. First transmission gear; f2. Second transmission gear; f3. Third transmission gear; 213. Slide chute body; 214. Rack. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0023] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0025] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] In the present application, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature may be that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0027] like Figures 1 to 9 As shown, the sliding and internally supported roll-up screen electronic device involved in this embodiment includes a roll-up seat 1 and a roll-up screen assembly 2.

[0028] In this example, the curling seat 1 includes a fixed seat 10 and a movable seat 11, wherein the fixed seat 10 includes a seat body 100 and a guide module 101 arranged on the inner walls of the seat body 100 on both sides; the movable seat 11 includes a seat body 110 and an extension body 111, wherein the seat body 110 is inserted into the interior of the seat body 100 and is slidably connected to the guide module 101, and the seat body 110 is kept in contact with the inner wall of the seat body 100; the extension body 111 is in the space formed by the seat body 110 and the seat body 100, and the opposite sides of the extension body 111 are slidably connected to the guide module 101.

[0029] The rolling screen assembly 2 includes a rolling screen 20 and a winder 21, wherein the rolling screen 20 is unfolded and retracted with the movement of the moving seat 11; the winder 21 includes a winding roller 210, a power roller 211, and a transmission member 212, wherein the winding roller 210 and the power roller 211 are connected to the fixed seat 10 side by side and rotated at intervals, one end of the rolling screen 20 is fixed on the seat body 110, and the other end is wound on the winding roller 210; the extension body 111 bypasses the power roller 211, and one end of the extension body 111 is relatively fixed to the seat body 110, and the other end extends into the interior of the seat body 110 and is slidably connected to the fixed seat 10, the seat body 110 and the extension body 111 form an inner supporting surface m that supports the rolling screen, and as the rolling screen 20 is unfolded or retracted, the inner supporting surface m is synchronously extended or retracted.

[0030] In some specific embodiments, the seat body 100 includes a seat bottom plate a0, a seat end plate a1 connected to the seat bottom plate a0 on the side away from the seat body, and two seat side plates a2 connected to the opposite sides of the seat bottom plate a0, wherein the cross section of the seat end plate a1 is arc-shaped, and the winding roller 210 is installed on the inner side of the arc and forms an inlet and outlet k with the top of the seat end plate a1, and the curling screen 20 passes through the inlet and outlet k from the winding roller 210 and is fixedly connected to the seat body 110; each seat side plate a2 is bent inward from the top to form a pressure plate a20, and as the curling screen 20 is retracted and expanded, the two pressure plates a20 are synchronously pressed outward on the two side edges of the curling screen. Here, the curling screen is prevented from having a "warping edge" problem in the early stage of unwinding from the winding roller, ensuring that the curling screen is stably unfolded or retracted.

[0031] The guide modules 101 on both sides are formed with a first slide groove c1 and a second slide groove c2 extending along the movement direction of the movable seat 11. The outer walls on the opposite sides of the seat body 110 are in contact with the inner walls of the seat side panels a2 on both sides, and the inner walls on the opposite sides of the seat body 110 are provided with slide bars t which are correspondingly inserted into the first slide groove c1 and slide along the first slide groove c1. The extension body 111 is inserted into the corresponding second slide groove c2 from the opposite side edges and can slide along the second slide groove c2. The extension body 111 extends into the end of the seat body 110 and is separated from the inner wall of the seat body to avoid contact between the extension body and the seat body, thereby reducing friction.

[0032] For the convenience of implementation, the inner support surface m formed by the seat body 110 and the extension body 111 includes a first inner support surface m1 formed on the seat body 110 and a second inner support surface m2 formed on the extension body 111. As the rolling screen 20 is unfolded or rolled up, the first inner support surface m1 is statically arranged relative to the part of the rolling screen to be supported, and the second inner support surface m2 is synchronously extended and gradually supports the rolling screen 20 or synchronously retracted and gradually separated from the rolling screen 20. Here, as the rolling screen is retracted, a part of the screen can always be kept in the inner support to ensure the support of the screen. It should be particularly noted that the extension body 111 can be directly fixedly connected to the seat body 110. When the rolling screen is rolled up, the rolling screen and the extension body act on the seat body together to realize the synchronous movement of the seat body; or the extension body 111 and the seat body are not connected to each other. When the rolling screen is rolled up, the rolling screen drives the seat body to move synchronously to realize the relative fixation of one end of the seat body and the extension body.

[0033] In some specific embodiments, the first inner supporting surface m1 and the second inner supporting surface m2 are arranged flush with each other; the rolling screen 20 is divided into a first screen body 201 fixed to the seat body 110 at one end and a second screen body 202 wound on the winding roller 210 from the other end of the first screen body 201, wherein the first inner supporting surface m1 and the second inner supporting surface m2 respectively support the first screen body 201 and the second screen body 202, and the width of the second inner supporting surface m2 is greater than or equal to the width of the second screen body 202. Here, as the rolling screen is retracted and extended, the first inner supporting surface and the first screen body can always maintain a relatively static state, and the extension or retraction of the second inner supporting surface is synchronized with the expansion or retraction of the second screen body, thereby avoiding relative sliding and friction, which is conducive to reducing wear and reducing the power consumption of the winder and unwinder, and extending the battery life of the electronic device.

[0034] To further facilitate implementation, an internal support template b is fixedly provided inside the seat body 110, wherein the upper surface of the internal support template b forms a first internal support surface m1; the extended body 111 includes a plurality of sheets d0 extending axially along the power roller 211 and arranged side by side in the direction of retraction and expansion of the curling screen (i.e., the direction of movement of the moving seat 11), and a flexible plate d1 covering the surfaces of the plurality of sheets d0 and relatively fixed, wherein both ends of each sheet d0 are inserted into the corresponding second slide groove c2, and the upper surface of the flexible plate d1 forms a second internal support surface m2, and the power roller 211 drives the plurality of sheets d0 to move along the direction of retraction and expansion of the curling screen, and the flexible plate d1 retracts and expands accordingly and synchronously forms internal support for the curling screen 20.

[0035] At the same time, the inner side of the flexible plate d1 forms a plurality of teeth matching the gap between each two adjacent sheets d0, and the flexible plate d1 meshes with the plurality of sheets d0 from the plurality of teeth; the two ends of the power roller 211 are respectively provided with a plurality of transmission teeth e spaced around the center line direction thereof, and the two ends of each sheet d0 are provided with plug-in blocks d00 matching the gap between two adjacent transmission teeth e. As the power roller 211 rotates, the plurality of plug-in blocks d00 are sequentially inserted into the gap and drive the flexible plate d1 to retract. This is conducive to accurately controlling the extension or retraction distance of the extension body, and the structure is simple and reliable. The spacing between each two adjacent sheets d0 is 1 to 1.2 times the width of the transmission teeth e to ensure that each sheet d0 is accurately inserted into the gap between two adjacent transmission teeth e.

[0036] Specifically, an arc-shaped guide surface is formed between each two adjacent transmission teeth e, and each plug-in block d00 includes a block body d000 fixedly connected to the corresponding sheet body d0, and a column d001 disposed at the end of the block body d000. As the power roller 211 rotates, the column d001 maintains the gap in contact with the arc-shaped guide surface to enter or move out of the gap. Here, under the guidance of the arc-shaped guide surface, it is convenient for the plug-in block to accurately enter the gap during the rotation of the power roller to implement transmission, and at the same time, it can improve the smoothness of the extension or retraction of the extension body and enhance the product texture.

[0037] In this example, the winding roller 210 and the power roller 211 of this embodiment both adopt conventional design, wherein the power roller 211 is connected to a drive motor, or two drive motors can be set, which are selected according to the torque required for the actual extension and retraction of the curling screen; the transmission member 212 includes a first transmission gear f1 and a second transmission gear f2 respectively arranged at both ends of the winding roller 210 and the power roller 211, and a third transmission gear f3 meshing with the first transmission gear f1 and the second transmission gear f2.

[0038] In addition, the winder 21 also includes a slide trough body 213 fixedly arranged in the middle part of the fixed seat 10 and extending along the retraction and expansion direction of the curling screen 20, and a rack 214 that bypasses the power roller 211 and meshes with it, wherein one end of the rack 214 is inserted into the slide trough body 213 and slides synchronously along the slide trough body 213 with the rotation of the power roller 211 to form a motion guide, and the other end bypasses the power roller 211 and is located in the space between the slide trough body 213 and the extension body 111.

[0039] In summary, after adopting the electronic device, when the power roller drives the winding roller to rotate to reel in the curled screen, the power roller synchronously drives the extension body and the seat body, so that the inner supporting surface of the curled screen formed by the seat body and the extension body is synchronously retracted to match the changes of the curled screen in real time during the retraction; when the power roller drives the winding roller to rotate to unfold the curled screen, the power roller synchronously drives the extension body and the seat body, so that the inner supporting surface of the curled screen formed by the seat body and the extension body is synchronously extended to match the changes of the curled screen in real time during the unfolding; therefore, compared with the prior art Compared with the present invention, on the one hand, the inner supporting surface of the curling screen is formed by the extension body and the seat body. During the retraction and extension of the curling screen, the inner supporting surface can be synchronously extended or retracted to match the size of the curling screen in real time, and flexibly meet the support requirements of the curling screen when it is retracted to any position; on the other hand, the retraction and extension movement of the extension body and the curling screen are driven separately based on the same power roller, which reduces the force on the surface of the curling screen, greatly improves the retraction and extension texture of the curling screen, and enhances the user experience. In addition, the transmission response speed is fast and the transmission efficiency is high, which effectively reduces the operating power consumption of the electronic device; thirdly, as the curling screen is retracted, a part of the screen can always be kept in the inner support to ensure the support of the screen; fourthly, as the curling screen is retracted, the first inner supporting surface and the first screen body can always remain in a relatively static state, and the extension or retraction of the second inner supporting surface is synchronized with the expansion or retraction of the second screen body, thereby avoiding relative sliding and friction, which is beneficial to reduce wear and reduce the power consumption of the winder, and extend the power life of the electronic device; fifthly, through The flexible plate forms a full-coverage internal support effect for the curling screen, and the curling screen is evenly stressed so that it can be stably unfolded or retracted; sixthly, under the guidance of the arc-shaped guide surface, it is convenient for the plug-in block to accurately enter the gap during the rotation of the power roller to implement transmission, and at the same time it can improve the smoothness of the extension or retraction of the extended body and enhance the product texture; seventhly, as the curling screen retracts, the two pressure plates simultaneously press on the two side edges of the curling screen to prevent the curling screen from being unwound from the winding roller due to the "warping edge" problem, thereby ensuring that the curling screen is stably unfolded or retracted.

[0040] The above detailed description of the present invention is intended to enable persons familiar with the art to understand the contents of the present invention and implement them. It does not limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A sliding and internally supported rolling screen electronic device, comprising a rolling seat and a rolling screen assembly, wherein the rolling seat comprises a fixed seat and a movable seat, the rolling screen assembly comprises a rolling screen and a reel, the rolling screen is unfolded and reeled with the movement of the movable seat, the reel comprises a winding roller, a power roller, and a transmission member, characterized in that: The movable seat includes a seat body and an extension body, wherein one end of the curling screen is fixed on the seat body; the extension body bypasses the power roller, and one end of the extension body is relatively fixed to the seat body, and the other end extends into the interior of the seat body and is slidably connected to the fixed seat, the seat body and the extension body form an inner supporting surface that supports the curling screen, and as the curling screen is unfolded or retracted, the inner supporting surface is synchronously extended or retracted.

2. The sliding and internally supported roll-up screen electronic device according to claim 1, characterized in that: The inner supporting surface includes a first inner supporting surface formed on the seat body and a second inner supporting surface formed on the extended body. As the curling screen is unfolded or rolled up, the first inner supporting surface is stationary relative to the part of the curling screen to be supported, and the second inner supporting surface is synchronously extended and gradually supports the curling screen or synchronously retracted and gradually separated from the curling screen.

3. The sliding and internally supported roll-up screen electronic device according to claim 2, characterized in that: The first inner supporting surface and the second inner supporting surface are arranged flush with each other.

4. The sliding and internally supported roll-up screen electronic device according to claim 2, characterized in that: The rolled screen is divided into a first screen body with one end fixed to the seat body and a second screen body wound on the winding roller from the other end of the first screen body, wherein the first inner supporting surface and the second inner supporting surface respectively support the first screen body and the second screen body.

5. The sliding and internally supported roll-up screen electronic device according to claim 4, characterized in that: The width of the second inner supporting surface is greater than or equal to the width of the second screen body.

6. The sliding and internally supported roll-up screen electronic device according to claim 1, characterized in that: The extended body extends into the end of the seat body and is spaced apart from the inner wall of the seat body.

7. The sliding and rolling internally supported roll-up screen electronic device according to any one of claims 1 to 6, characterized in that: The extended body includes a plurality of sheets extending axially along the power roller and distributed side by side, and a relatively fixed flexible plate covering the surfaces of the plurality of sheets. The power roller drives the plurality of sheets to move along the direction of expansion and contraction of the curling screen, and the flexible plate expands and contracts accordingly and simultaneously forms internal support for the curling screen.

8. The sliding and internally supported roll-up screen electronic device according to claim 7, characterized in that: Both ends of the power roller are respectively provided with a plurality of transmission teeth spaced apart around its own center line direction, and both ends of each sheet are provided with plug-in blocks matching the gap between two adjacent transmission teeth. As the power roller rotates, a plurality of plug-in blocks are sequentially inserted into the gap and drive the flexible plate body to retract and expand.

9. The sliding and internally supported roll-up screen electronic device according to claim 8, characterized in that: An arc-shaped guide surface is formed between each two adjacent transmission teeth. Each of the plug-in blocks includes a block body fixedly connected to the corresponding sheet body and a column arranged at the end of the block body. As the power roller rotates, the column maintains contact with the arc-shaped guide surface and enters or moves out of the gap.

10. The sliding and internally supported roll-up screen electronic device according to claim 1, characterized in that: The fixed seat includes a seat body and a guide module arranged on the inner walls on both sides of the seat body, wherein the seat body is inserted into the seat body and is slidably connected to the guide module, and the seat body is kept in contact with the inner wall of the seat body; the opposite sides of the extended body are slidably connected to the guide module.

11. The sliding and internally supported roll-up screen electronic device according to claim 10, characterized in that: The seat body includes a seat bottom plate, a seat end plate connected to the seat bottom plate on a side away from the seat body, and two seat side plates connected to the opposite sides of the seat bottom plate, wherein each of the seat side plates is bent inward from the top to form a pressure plate, and as the curling screen is retracted and expanded, the two pressure plates are synchronously pressed outward on the two side edges of the curling screen.

12. The sliding and internally supported roll-up screen electronic device according to claim 11, characterized in that: The cross section of the seat end plate is arc-shaped, the winding roller is installed on the inner side of the arc and forms an inlet and outlet between the winding roller and the top of the seat end plate, and the curling screen passes through the inlet and outlet from the winding roller and is fixedly connected to the seat body.

13. The sliding and internally supported roll-up screen electronic device according to claim 1, characterized in that: The winding roller and the power roller are rotatably connected to the fixed seat; the transmission member includes a first transmission gear and a second transmission gear respectively arranged at both ends of the winding roller and the power roller, and a third transmission gear meshing with the first transmission gear and the second transmission gear; and / or, the power roller is driven by at least one motor; and / or, the winder also includes a slide trough body fixedly arranged inside the fixed seat and extending along the retraction and expansion direction of the curling screen, and a rack that bypasses the power roller and meshes with the rack, wherein one end of the rack is slidably inserted into the slide trough body, and slides synchronously along the slide trough body as the power roller rotates.

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