Double-track folding screen folding and unfolding integrated device

Abstract

The application relates to a double-track vehicle-mounted folding screen folding and unfolding integrated device, which comprises a mounting seat, a folding screen assembly and a power assembly. The warehouse door extends along the left-right direction and can be opened or closed. The folding screen assembly comprises a first screen body and a second screen body which are folded up and down. The power assembly comprises a base, a connecting seat, a track seat, a follow-up module and a power device. In one aspect, the continuous layout of the sliding section and the folding and unfolding section can realize the synchronization and continuity of stretching and turning in single linear pushing movement, so that the structure is optimized and the failure rate is reduced. In another aspect, the cooperation between the two movements enables the folding screen assembly to be not completely exposed, the unfolded folding screen is in one-way self-locking and close to the warehouse opening to be flat, the required folding and unfolding space is effectively shortened, effective shielding is formed, and the overall aesthetic appearance is improved.

Description

Technical Field

[0001] This invention belongs to the field of foldable screen technology, specifically relating to a dual-track vehicle-mounted foldable screen retraction and unfolding integrated device. Background Technology

[0002] Currently, most in-vehicle screens are single, non-foldable pieces. To enhance the technological feel of the in-vehicle interior, many manufacturers plan to introduce foldable screens, allowing for one-button operation to fold in and out.

[0003] However, many foldable screens face the following challenges during the loading process:

[0004] 1) The inward and outward extension of the foldable screen is controlled by a power system, while the relative unfolding and folding of the foldable screen is controlled by a system. The two systems are independent and cannot work together, resulting in a complex structure, high cost, and increased failure rate.

[0005] 2) Because the two actions are performed separately, the folding operation can only be carried out after all the relevant components of the folding screen have been fully displayed. This not only requires a lot of space, but also causes some parts to protrude at any time, affecting their aesthetics and resulting in a poor user experience. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an improved dual-track vehicle-mounted folding screen retraction and unfolding integrated device.

[0007] To solve the above technical problems, the present invention adopts the following technical solution:

[0008] A dual-track vehicle-mounted folding screen retraction and unfolding integrated device includes a mounting base with a compartment door, a folding screen assembly that folds or unfolds based on the length direction of the compartment door, and a power assembly. The compartment door extends in the left-right direction and is capable of opening or closing. The folding screen assembly includes a folding screen, a first screen body and a second screen body on which the folding screen is mounted and rotates around a folding center line. The power assembly includes a base, a connecting seat for connecting the base to the mounting base, a track seat formed on the connecting seat and having an upper guide rail and a lower guide rail, and a track seat slidably connected to the upper guide rail and the lower guide rail and fixed to the first guide rail. The first and second screens are equipped with a follow-up module on the back and a power unit that is mounted on the base and can move linearly along the direction of the access door. The track seats form a displacement channel to avoid the entry and exit of the folding screen assembly. The upper and lower guide rails both have sliding sections and unfolding sections. Under the linear push of the power unit, the follow-up module moves in the sliding section and unfolding section to synchronously and continuously unfold the first and second screens. When the first and second screens are in the unfolded state, the follow-up module is relatively opposed and forms a one-way lock based on the unfolding section. The follow-up module is hidden inside the mounting base and blocks the corresponding access door position.

[0009] Preferably, the sliding section extends along the direction of the inlet / outlet door, and the unfolding / retracting section is arranged forward and outward from the end of the sliding section near the door. The unfolding / retracting section synchronously drives the first and second screens to fold or unfold relative to each other during the linear motion of the power unit. That is, the inlet / outlet mounting base is formed by the linear sliding section, and the first and second screens are folded or unfolded relative to each other by the unfolding / retracting section. The movements of both can be continuous, without requiring all components to extend completely out of the mounting base before flipping. Furthermore, the continuous movement is only possible at specific positions to avoid obstructing the opening of the mounting base.

[0010] Specifically, the sliding section is perpendicular to the length direction of the door, and the unfolding section is a smoothly transitioning arc shape. The vertical distance from the center of the arc to the center line of the sliding section is equal to the radius of the arc. The unfolding section of the upper guide rail curves upward and forward, while the unfolding section of the lower guide rail curves downward and forward. Preferably, the end of the arc extends inward, and a one-way self-locking is formed based on the arc limitation created by the inward extension end and the contact of the follower module. Here, the one-way self-locking prevents the first and second screens from flipping open too quickly, and also improves the stability of the flattened display screen. In addition, the one-way self-locking does not affect the inward retraction operation of the folding screen. Since the vertical distance from the center of the arc to the center line of the sliding section is equal to the radius of the arc, it not only determines the movement path but also controls the distance the folding screen extends out of the mounting base. In other words, under this path, the distance the folding screen extends out of the mounting base is the shortest, and it can still maintain a continuous movement between flipping and translation under linear power.

[0011] According to a specific embodiment and preferred aspect of the present invention, the upper guide rail and the lower guide rail are symmetrically arranged vertically; the follower module includes an upper follower module base and a lower follower module base symmetrically arranged about the folding center line of the first screen body and the second screen body, wherein the upper follower module base and the lower follower module base abut against each other to restrict the first screen body and the second screen body to be in a flattened state. The high degree of motion synchronization formed by the symmetrical rails, coupled with the symmetrical follower implementation on the upper and lower follower module bases, improves the synchronization and stability of the folding screen's unfolding and retraction.

[0012] Preferably, the track base includes an upper base and a lower base that are aligned vertically and symmetrically arranged. The upper guide rail is located on the upper base, and the lower guide rail is located on the lower base. Multiple upper bases are arranged side-by-side with intervals, and each lower base corresponds to one upper base. By aligning multiple sets of components, the forces generated by flipping and folding are distributed at intervals along the folding center line, resulting in relatively uniform unfolding or folding driving forces for the first and second screens, thus improving the service life of the foldable screen assembly.

[0013] In some specific embodiments, there are two upper seats and two corresponding lower seats. The upper follower mold seat slides on the upper guide rail with two follower pins respectively; the lower follower mold seat slides on the lower guide rail with two follower pins respectively. The synchronous displacement of the follower pins improves the synchronous coordination of the expansion and contraction, and the self-locking limit formed by the clamping and abutment of the follower pins further improves the stability of the flattening.

[0014] Preferably, the connecting seat includes seat plates located on opposite sides and forming U-shaped clearance grooves, wherein the U-shaped clearance grooves are aligned with the displacement channel, and the folded first screen and second screen can move out of the U-shaped clearance grooves.

[0015] According to another specific embodiment and preferred aspect of the present invention, the power unit includes a power connector connected to the rotating connection of the first screen body and the second screen body, and a power member that drives the power connector to move linearly along the direction perpendicular to the length of the compartment door, wherein an avoidance notch is formed on the follower module, and when the first screen body and the second screen body are in the unfolded state, the follower module and the power connector cooperate to clamp and flatten the first screen body and the second screen body in a clamping manner.

[0016] Preferably, the power component includes a power screw extending along the length direction perpendicular to the door, a sliding module cooperating with the power screw, and a power motor driving the power screw to rotate in both directions. The sliding module includes a slide block parallel to the power screw and a sliding sleeve sleeved on the slide block. The sliding sleeve is fixed to the power connector, and the power screw and the sliding sleeve form a screw-nut structure.

[0017] Furthermore, the compartment door is slidably mounted on the mounting base, with the compartment opening of the mounting base opened or closed based on the sliding of the compartment door. In this example, it is laid out based on vertically extending slide rails, with the compartment door engaging via a slide block that slides on the slide rails. At one end of the compartment opening, there is also an annular power belt assembly that drives the slide block to open or close the compartment opening.

[0018] Specifically, the annular power belt assembly includes three power wheels arranged in a triangle and an annular belt wound around the three power wheels. The annular belt is fixedly connected to the slide block, and the movement of the annular belt drives the slide block to move up and down along the slide rail.

[0019] Due to the implementation of the above technical solutions, the present invention has the following advantages compared with the prior art:

[0020] In existing foldable screen loading processes, the inward and outward extension of the foldable screen are controlled by one power system, while the relative unfolding and folding are controlled by another. These two systems are independent and cannot coordinate, resulting in complex structures, high costs, and increased failure rates. Furthermore, because the two actions are performed separately, the unfolding operation can only be performed after all relevant components of the foldable screen are fully extended. This not only requires a large space but also causes some parts to protrude, affecting the aesthetics and leading to a poor user experience. This application addresses these shortcomings by providing a holistic design for a dual-track vehicle-mounted foldable screen unfolding and folding integrated device, cleverly resolving the deficiencies and defects of existing technologies. Using this integrated device, driven linearly by a power unit, a follower module moves synchronously and continuously in the sliding and unfolding sections for simultaneous unfolding and folding. The first screen and the second screen are in the unfolded state. When the first screen and the second screen are in the unfolded state, the follower module is in relative contact and forms a one-way lock based on the unfolding section. The follower module is hidden inside the mounting base and blocks the corresponding compartment position. Therefore, the present invention, on the one hand, based on the continuous layout of the sliding section and the unfolding section, can achieve synchronous and continuous extension and flipping in a single linear push movement. Therefore, while optimizing the structure, the failure rate is reduced, and the required unfolding space is further shortened, and the distance between the display screen and the mounting base is shortened as much as possible. On the other hand, based on the cooperation between the two movements, the folding screen assembly does not need to be fully exposed. Moreover, the unfolded folding screen is flattened close to the compartment opening in a one-way self-locking state, which effectively shortens the required unfolding space and forms an effective shield, improving the overall aesthetics. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of the dual-track vehicle-mounted folding screen retraction and unfolding integrated device of the present invention (outward unfolding state);

[0022] Figure 2 for Figure 1 Front view diagram;

[0023] Figure 3 for Figure 2 A top-down view;

[0024] Figure 4 for Figure 3 Schematic diagram of the sectional view along the central AA direction;

[0025] Figure 5 This is a structural schematic diagram of the dual-track vehicle-mounted folding screen retraction and unfolding integrated device of the present invention (inward retraction state);

[0026] Figure 6 for Figure 5 Front view diagram;

[0027] Figure 7 for Figure 6 A top-down view;

[0028] Figure 8 for Figure 7 Schematic diagram of the BB-direction section;

[0029] The components include: 1. Mounting base; 10. Compartment opening; 11. Slide rail; 12. Slide block; 13. Circular power belt assembly; a. Drive wheel; b. Circular belt; m. Compartment door;

[0030] 2. Foldable screen component; 20. Foldable screen; 21. First screen body; 22. Second screen body;

[0031] 3. Power assembly; 30. Base; 31. Connecting seat; 310. Seat plate; c. U-shaped clearance groove; 32. Track seat; 320. Upper guide rail; 321. Lower guide rail; h1. Sliding section; h2. Extending and retracting section; s1. Upper seat body; s2. Lower seat body; 33. Follower module; 330. Upper follower module seat; 331. Lower follower module seat; 34. Power unit; 340. Power connector; 341. Power component; k. Clearance notch; d. Power lead screw; e. Sliding module; e1. Slide seat; e2. Slide sleeve; f. Power motor. Detailed Implementation

[0032] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the application will be described in detail below with reference to the accompanying drawings and specific embodiments. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0033] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0036] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0037] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0038] like Figures 1 to 8 As shown, the dual-track vehicle-mounted folding screen retraction and unfolding integrated device involved in this embodiment includes a mounting base 1 with a compartment door m, a folding screen assembly 2 that folds or unfolds based on the length direction of the compartment door m, and a power assembly 3.

[0039] Specifically, the mounting base 1 is assembled with the vehicle frame via its periphery, and a left-right extending compartment opening 10 is formed on the mounting base 1. The compartment door m is slidably mounted on the mounting base 1, and the compartment opening 10 of the mounting base 1 is opened or closed based on the sliding of the compartment door m.

[0040] In some specific embodiments, the mounting base 1 has slide rails 11 on opposite sides, and the compartment door m is connected to a slide block 12 that slides on the slide rails 11. Simultaneously, an annular power belt assembly 13 is provided at one end of the compartment opening 10 to drive the slide block 12 to open or close the compartment opening. Specifically, the annular power belt assembly 13 includes three drive wheels a arranged in a triangle and an annular belt b wound around the three drive wheels a. The annular belt b is fixedly connected to the slide block 12, and the movement of the annular belt b drives the slide block 12 to move up and down along the slide rails 11. In short, one side of the annular belt b extends vertically, thus adjusting the height of the slide block 12 based on the movement of the vertically extending annular belt b, thereby opening and closing the compartment door m.

[0041] The folding screen assembly 2 includes a folding screen 20, a first screen body 21 and a second screen body 22 on which the folding screen 20 is mounted and rotates around the folding center line. That is, the first screen body 21 and the second screen body 22 are folded up and down and flipped around the folding center line so that the folding screen 20 is folded and flattened.

[0042] The power assembly 3 includes a base 30, a connecting seat 31 for connecting the base 30 to the mounting base 1, a track seat 32 formed on the connecting seat 31 and having an upper guide rail 320 and a lower guide rail 321, a follower module 33 slidably connected to the upper guide rail 320 and the lower guide rail 321 and fixed to the back of the first screen 21 and the second screen 22, and a power unit 34 disposed on the base 30 and capable of linear movement along the direction of the inlet / outlet door m. The base 30 is a conventional base. The connecting seat 31 includes a seat plate 310 located on opposite sides and forming a U-shaped clearance groove c, wherein the U-shaped clearance groove c is aligned with the displacement channel. The folded first... The screen 21 and the second screen 22 can move from the U-shaped clearance groove c; a displacement channel is formed between the track seats 32 to avoid the entry and exit of the folding screen assembly 2. The upper guide rail 320 and the lower guide rail 321 both have a sliding section h1 and an unfolding section h2. Under the linear push of the power unit 34, the follower module 33 moves in the sliding section h1 and the unfolding section h2 to synchronously and continuously unfold the first screen 21 and the second screen 22. When the first screen 21 and the second screen 22 are in the unfolded state, the follower module 33 is relatively opposed and forms a one-way lock based on the unfolding section h2. At the same time, the follower module 33 is hidden inside the mounting base 1 and blocks the corresponding compartment opening 10 position.

[0043] In some specific embodiments, the sliding section h1 extends along the direction of the in-and-out door m, and the unfolding section h2 is set forward and outward from the end of the sliding section near the door m. The unfolding section h2 synchronously drives the first screen 21 and the second screen 22 to fold or unfold relative to each other during the linear motion of the power unit 34. That is, the in-and-out mounting base is formed based on the linear sliding section h1, and the first screen 21 and the second screen 22 are folded or unfolded relative to each other based on the unfolding section h2. The movement of the two can be continuous, without all parts needing to extend out of the mounting base to flip over. At the same time, the continuous movement can only be performed at specific positions to avoid the opening 10 of the mounting base 1.

[0044] In this example, the sliding section h1 is perpendicular to the length direction of the door m, and the unfolding section h2 is a smoothly transitioning arc shape. The unfolding section h2 of the upper guide rail 320 curves upwards and forwards, while the unfolding section h2 of the lower guide rail 321 curves downwards and forwards. Simultaneously, the ends of the curved sections extend inwards, and a one-way self-locking mechanism is formed based on the contact between the inwardly extended ends and the contact with the follower module 33. This one-way self-locking prevents the first screen 21 and the second screen 22 from flipping open excessively, while also improving the stability of the flattened display screen. Furthermore, the one-way self-locking does not affect the inward retraction operation of the folding screen.

[0045] The track base 32 includes an upper base s1 and a lower base s2 that are aligned vertically and symmetrically arranged (i.e., an upper guide rail 320 and a lower guide rail 321 are symmetrically arranged vertically). The upper guide rail 320 is located on the upper base s1, and the lower guide rail 321 is located on the lower base s2. The follower module 33 includes an upper follower module 330 and a lower follower module 331 that are symmetrically arranged about the folding center line of the first screen 21 and the second screen 22. The upper follower module 330 and the lower follower module 331 abut against each other to limit the first screen 21 and the second screen 22 to be in a flattened state. The high degree of motion synchronization formed by the symmetrical tracks, along with the symmetrical follower implementation on the upper and lower follower modules, improves the synchronization and stability of the folding screen's unfolding and retraction.

[0046] In this example, there are two upper bases s1 and two corresponding lower bases s2. By aligning these two sets, the forces generated by flipping and folding are distributed at intervals along the folding center line, resulting in relatively uniform driving forces for the unfolding or folding of the first and second screens, thus improving the lifespan of the folding screen assembly. Simultaneously, the upper follower mold base 330 slides along the upper guide rail 320 from its two follower pins; the lower follower mold base 331 slides along the lower guide rail 321 from its two follower pins. The synchronous displacement of the follower pins improves the synchronous coordination of unfolding and folding, and the locking action formed by the follower pins creates a limiting self-locking mechanism, further enhancing the stability of the flattened state.

[0047] The power unit 34 includes a power connector 340 connected to the rotating connection between the first screen body 21 and the second screen body 22, and a power component 341 that drives the power connector 340 to move linearly along the length direction perpendicular to the door m. The upper follower mold base 330 and the lower follower mold base 331 each have clearance notches k. When the first screen body 21 and the second screen body 22 are in the unfolded state, the upper follower mold base 330, the lower follower mold base 331, and the power connector 340 cooperate to clamp and flatten the first screen body 21 and the second screen body 22. The power component 341 includes a power lead screw d extending along the length direction perpendicular to the door m, a sliding module e cooperating with the power lead screw d, and a power motor f driving the power lead screw d to rotate in both directions. The sliding module e includes a slide seat e1 parallel to the power lead screw d and a sliding sleeve e2 sleeved on the slide seat e1. The sliding sleeve e2 is fixed to the power connector 340, and the power lead screw d and the sliding sleeve e2 form a lead screw and nut structure.

[0048] In summary, by adopting this integrated device, driven linearly by the power unit, the follower module moves in the sliding section and the unfolding section to synchronously and continuously unfold the first and second screens. When the first and second screens are in the unfolded state, the follower module is relatively opposed and forms a one-way lock based on the unfolding section. The follower module is concealed inside the mounting base and blocks the corresponding compartment opening. Therefore, this invention, on the one hand, based on the continuous layout of the sliding section and the unfolding section, can achieve synchronous and continuous extension and folding in a single linear push motion, thus optimizing the structure and reducing the failure rate; on the other hand, based on the cooperation between the two movements, it can reduce the cost of the foldable screen assembly. It does not require all parts to be exposed, and the unfolded folding screen is flattened near the compartment opening in a one-way self-locking mechanism, effectively shortening the required unfolding and retraction space and providing effective shielding, thus improving the overall aesthetics. Thirdly, it uses a linear sliding section to enter and exit the mounting base, and the unfolding section to fold or unfold the first and second screens relative to each other, with continuous movement between the two. It does not require all components to extend beyond the mounting base for flipping, and continuous movement is only possible at specific locations to avoid the compartment opening of the mounting base. Furthermore, since the vertical distance from the center of the arc to the centerline of the sliding section is equal to the radius of the arc, it not only determines the movement path but also controls the folding... The distance the folded screen extends beyond the mounting base is the shortest possible along this path, while still maintaining continuous movement between flipping and translation under linear power. Fourthly, unidirectional self-locking prevents the first and second screens from flipping excessively, while also improving the stability of the flattened display. Furthermore, unidirectional self-locking does not affect the inward retraction of the folded screen. Fifthly, the high motion synchronization achieved through symmetrical tracks, along with symmetrical follow-up on the upper and lower follow-up modules, improves the synchronization and stability of the folding screen's unfolding and retraction. Sixthly, multiple alignments are used to integrate the power generated by flipping and folding during the folding process. The spacing along the center line ensures a relatively uniform driving force for the unfolding or folding of the first and second screens, improving the lifespan of the folding screen assembly. Simultaneously, the synchronous displacement of the follower pins enhances the coordination of unfolding and folding, and the locking mechanism formed by the follower pins creates a self-locking limit, further improving the stability of the flattened state. Seventhly, the avoidance notch design allows the follower module and power connector to clamp and flatten the first and second screens when they are unfolded. Eighthly, the screw and nut structure ensures smooth pushing, while the movement of the annular belt drives the slide block to move up and down along the slide rail to open or close the compartment door.

[0049] The present invention has been described in detail above, with the aim of enabling those skilled in the art to understand and implement the invention. However, this description should not be construed as limiting the scope of protection of the invention. All equivalent changes or modifications made in accordance with the spirit and essence of the invention should be included within the scope of protection of the invention.

Claims

1. A dual-track vehicle-mounted folding screen retraction and unfolding integrated device, comprising a mounting base with a compartment door, a folding screen assembly folded or unfolded with the length direction of the compartment door as a reference, and a power assembly, wherein the compartment door extends along the left-right direction and is configured to open or close, characterized in that: The folding screen assembly includes a folding screen, a first screen body and a second screen body respectively mounted on the folding screen and rotating around the folding center line. The power assembly includes a base, a connecting seat for connecting the base to the mounting base, a track seat formed on the connecting seat and having an upper guide rail and a lower guide rail, a follower module slidably connected to the upper guide rail and the lower guide rail and fixed to the back of the first screen body and the second screen body, and a power unit disposed on the base and capable of linear movement along the direction of entering and exiting the compartment door. The track seats form a displacement channel to avoid the entry and exit of the folding screen assembly. The upper guide rail and the lower guide rail each have a sliding section and an unfolding section. Under the linear push of the power unit, the follower module moves in the sliding section and the unfolding section to synchronously and continuously unfold the first screen body and the second screen body. When the first screen body and the second screen body are in the unfolded state, the follower module is relatively opposed and forms a one-way lock based on the unfolding section. The follower module is concealed inside the mounting base and covers the corresponding compartment door position.

2. The dual-track vehicle-mounted folding screen retraction and unfolding integrated device according to claim 1, characterized in that: The sliding section extends along the direction of entering and exiting the compartment door, and the unfolding section is arranged forward and outward from the end of the sliding section near the compartment door. The unfolding section synchronously drives the first screen and the second screen to fold or unfold relative to each other during the linear motion of the power unit.

3. The dual-track vehicle-mounted folding screen retraction and unfolding integrated device according to claim 2, characterized in that: The sliding section is perpendicular to the length direction of the door, and the retracting section is a smoothly transitioning arc shape. The vertical distance from the center of the arc to the center line of the sliding section is equal to the radius of the arc. The retracting section of the upper guide rail is raised upward and forward, and the retracting section of the lower guide rail is raised downward and forward.

4. The dual-track vehicle-mounted folding screen retraction and unfolding integrated device according to claim 3, characterized in that: The arc-shaped end extends inward, and the arc formed by the inner extension end and the abutment of the follower module form a one-way self-locking; the upper guide rail and the lower guide rail are symmetrically arranged vertically; the follower module includes an upper follower module base and a lower follower module base symmetrically arranged about the folding center line of the first screen body and the second screen body, wherein the upper follower module base and the lower follower module base abut against each other to restrict the first screen body and the second screen body to be in a flattened state.

5. The dual-track vehicle-mounted folding screen retraction and unfolding integrated device according to claim 4, characterized in that: The track base includes an upper base and a lower base that are aligned vertically and symmetrically arranged. The upper guide rail is located on the upper base, and the lower guide rail is located on the lower base. There are multiple upper bases arranged side by side with intervals, and each lower base corresponds to one of the upper bases.

6. The dual-track vehicle-mounted folding screen retraction and unfolding integrated device according to claim 5, characterized in that: There are two upper seats and two corresponding lower seats. The upper follower mold base slides on the upper guide rail via two follower pins. The lower follower mold base slides on the lower guide rail via two follower pins.

7. The dual-track vehicle-mounted folding screen retraction and unfolding integrated device according to claim 1, characterized in that: The connecting seat includes seat plates located on opposite sides and forming U-shaped clearance grooves, wherein the U-shaped clearance grooves are aligned with the displacement channel, and the folded first screen and second screen can move out of the U-shaped clearance grooves.

8. The dual-track vehicle-mounted folding screen retraction and unfolding integrated device according to claim 1, characterized in that: The power unit includes a power connector connected to the rotating connection of the first screen and the second screen, and a power component that drives the power connector to move linearly along a direction perpendicular to the length of the door. The follower module has an avoidance notch. When the first screen and the second screen are in the unfolded state, the follower module and the power connector cooperate to clamp and flatten the first screen and the second screen.

9. The dual-track vehicle-mounted folding screen retraction and unfolding integrated device according to claim 8, characterized in that: The power component includes a power lead screw extending along a direction perpendicular to the length of the compartment door, a sliding module cooperating with the power lead screw, and a power motor driving the power lead screw to rotate in both directions. The sliding module includes a slide block parallel to the power lead screw and a slide sleeve sleeved on the slide block. The slide sleeve is fixed to the power connector, and the power lead screw and the slide sleeve form a lead screw and nut structure.

10. The dual-track vehicle-mounted folding screen retraction and unfolding integrated device according to claim 1, characterized in that: The compartment door is slidably mounted on the mounting base, wherein the sliding of the compartment door opens or closes the compartment opening of the mounting base.

Images