Double-track type vehicle-mounted folding screen folding and unfolding integrated equipment

Abstract

The invention relates to double-track type vehicle-mounted folding screen folding and unfolding integrated equipment which comprises a mounting base, a folding screen assembly and a power assembly, a bin door extends in 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, and the power assembly comprises a base, a connecting base, a track base, a follow-up module and a power device. On one hand, based on the continuous layout of the sliding section and the unfolding and folding section, synchronization and coherence of stretching, retracting and overturning can be achieved in single linear pushing motion, and therefore the fault rate is reduced while the structure is optimized; on the other hand, on the basis of cooperation between the two motions, the folding screen does not need to be completely exposed, the unfolded folding screen is in a one-way self-locking state and is close to a bin opening to be flatly unfolded, meanwhile, the needed unfolding and folding space is effectively shortened, effective shielding can be formed, and the overall attractiveness is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of folding screens, and specifically relates to a dual-track vehicle-mounted folding screen retractable and extendable integrated device. Background Art

[0002] As for the current car screens, they are basically a whole piece and cannot be folded. In order to enhance the technological experience of the car interior, many manufacturers plan to push folding screens into cars, which can be retracted and extended by one-touch start of a button.

[0003] However, many folding screens have the following problems during the loading process:

[0004] 1) The retraction and extension of the folding screen are controlled by a power system, and the relative expansion and folding of the folding screen are controlled by a system. The two systems are independent and cannot form a synergy, resulting in a complex structure, high cost, and increased failure rate;

[0005] 2) Because the two actions are performed separately, that is to say, the folding and unfolding operations can only be performed after the folding screen-related components are fully unfolded. Not only is a large space required, but some parts are also extended at any time, which affects the aesthetics and causes poor user experience. Summary of the invention

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

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] A dual-track vehicle-mounted folding screen retractable and unfolding device, which includes a mounting seat with a door, a folding screen assembly that is folded or unfolded based on the length direction of the door, and a power assembly, wherein the door extends in the left and right directions and can be opened or closed, the folding screen assembly includes a folding screen, a first screen body and a second screen body on which the folding screens are respectively mounted and rotated around a folding center line, the power assembly includes a base, a connecting seat for connecting the base to the mounting seat, a track seat formed on the connecting seat and having an upper guide track and a lower guide track, and a sliding connection respectively connected to the upper guide track and the lower guide track and fixed to the first A follower module on the back of a first screen body and a second screen body, and a power device arranged on a base and capable of linear movement in the direction of entering and exiting a warehouse door, wherein a displacement channel is formed between the track seats to avoid the entry and exit of the folding screen assembly, and the upper guide rail and the lower guide rail both have a sliding section and an extension and retraction section. Under the linear push of the power device, the follower module moves in the sliding section and the extension and retraction section to synchronously and continuously retract and unfold the first screen body and the second screen body, and when the first screen body and the second screen body are in the unfolded state, the follower module is relatively in conflict and forms a one-way lock based on the extension and retraction section; the follower module is hidden inside the mounting seat and blocks the corresponding warehouse opening position.

[0009] Preferably, the sliding section extends along the direction of entering and exiting the warehouse door, and the unfolding section is arranged to be forward and outwardly arched from the end of the sliding section close to the warehouse door, wherein the first screen body and the second screen body are synchronously driven to be relatively folded or unfolded based on the folding section in the linear motion of the power device. That is, the entry and exit mounting seat is formed based on the linear sliding section, and the first screen body and the second screen body are relatively folded or unfolded based on the unfolding section, and the movements of the two can be continuous, and all parts do not need to be fully extended from the mounting seat to flip, and the movement can only be continuous at a specific position to avoid the hatch of the mounting seat.

[0010] Specifically, the sliding section is perpendicular to the length direction of the door, and the unfolding section is an arc with a smooth transition. 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, wherein the unfolding section of the upper guide rail tilts upward and forward, and the unfolding section of the lower guide rail tilts downward and forward. Preferably, the end of the arc extends inward, and a one-way self-locking is formed based on the curvature restriction formed by the inner extension end and the interference of the follower module. Here, based on the one-way self-locking, the first screen body and the second screen body are prevented from being flipped open in transition, and the stability of the flattened display screen is also improved; in addition, the one-way self-locking will not affect the retracting operation of the folding screen; at the same time, based on 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, therefore, not only the moving path is determined, but also the distance of the folding screen extending out of the mounting seat is controlled. In other words, under this path, the distance of the folding screen extending out of the mounting seat is the shortest, and it can still maintain a coherent movement between flipping and translation under linear power.

[0011] According to a specific implementation and preferred aspect of the present invention, the upper guide rail and the lower guide rail are symmetrically arranged up and down; the follower mold group includes an upper follower mold base and a lower follower mold base symmetrically arranged about the folding center line of the first screen body and the second screen body, wherein the upper follower mold base and the lower follower mold base are in contact with each other to limit the first screen body and the second screen body to be in a flattened state. The movement synchronization formed by the symmetrical rails is high, and the upper follower mold base and the lower follower mold base are symmetrically implemented to improve the synchronization and stability of the folding and unfolding of the folding screen.

[0012] Preferably, the track seat comprises an upper seat body and a lower seat body that are aligned and symmetrically arranged up and down, the upper guide track is located on the upper seat body, and the lower guide track is located on the lower seat body, wherein there are multiple upper seats and they are spaced side by side, and the lower seats correspond to the upper seats one by one. Through multiple groups of alignment, the power generated by flipping and folding is spaced and distributed on the folding center line, so that the driving force for unfolding or folding the first screen body and the second screen body is relatively uniform, thereby improving the service life of the folding screen assembly.

[0013] In some specific embodiments, the upper seat body has two rails, and the lower seat body has two rails correspondingly. The upper follower mold seat slides on the upper guide rails from the two follower pins respectively; the lower follower mold seat slides on the lower guide rails from the two follower pins respectively. Based on the synchronous displacement of the follower pins, the synchronous coordination of the contraction and expansion is improved, and the limit self-locking is formed in the buckling and pressing resistance formed by the follower pins, further improving the stability of the flattening.

[0014] Preferably, the connecting seat includes seat plates located on opposite sides and forming a U-shaped avoidance groove, wherein the U-shaped avoidance groove is aligned with the displacement channel, and the folded first screen body and the second screen body can move from the U-shaped avoidance groove.

[0015] According to another specific implementation and preferred aspect of the present invention, the power device includes a power joint connected to the rotating connection part of the first screen body and the second screen body, and a power member that drives the power joint to move linearly along a direction perpendicular to the length of the warehouse door, wherein an avoidance gap 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 joint cooperate to flatten the first screen body and the second screen body in a clamping manner.

[0016] Preferably, the power part includes a power screw extending in a direction perpendicular to the length of the warehouse door, a sliding module cooperating with the power screw, and a power motor driving the power screw to rotate forward and reversely, wherein the sliding module includes a sliding seat parallel to the power screw, a sliding sleeve mounted on the sliding seat, the sliding sleeve is fixed to the power joint, and the power screw and the sliding sleeve constitute a screw nut structure.

[0017] In addition, the door is slidably mounted on the mounting seat, wherein the door slides to open or close the hatch of the mounting seat. In this example, the layout is based on the slide rails extending up and down, the door is docked by the slide seat sliding on the slide rail, and an annular power belt assembly is provided at one end of the hatch to drive the slide seat to move to open or close the hatch.

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

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

[0020] During the loading process of the existing folding screen, the inward and outward movement of the folding screen is controlled by a power system, and the relative expansion and folding of the folding screen is controlled by a system. The two systems are independent and cannot form a synergy, resulting in a complex structure and high cost, and also increasing the failure rate. In addition, because the two actions are performed separately, that is to say, the folding and extension operation can only be performed after the relevant components of the folding screen are fully unfolded, not only is the space required large, but some parts are also extended at any time, which affects the aesthetics of the folding screen, thereby causing poor user experience and other deficiencies. The present application comprehensively designs the structure of the dual-track vehicle-mounted folding screen folding and extension integrated device, cleverly solving the deficiencies and defects of the prior art. After adopting the integrated device, based on the linear push of the power device, the follow-up module moves in the sliding section and the expansion and contraction section to synchronously and continuously fold and extend. The first screen body and the second screen body, and when the first screen body and the second screen body are in the unfolded state, the follower module is in relative conflict with each other and forms a one-way lock based on the unfolding section; the follower module is hidden inside the mounting seat and blocks the corresponding bay opening position. Therefore, on the one hand, based on the continuous layout of the sliding section and the unfolding section, the present invention can achieve synchronization and continuity of extension and retraction and flipping in a single linear pushing 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 seat 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 completely exposed, and the unfolded folding screen is in a one-way self-locking state and is flattened close to the bay opening, while effectively shortening the required unfolding space, and can form an effective shielding to improve the overall aesthetics. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the dual-track vehicle-mounted folding screen retractable and unfoldable integrated device of the present invention (extended state);

[0022] Figure 2 for Figure 1 A schematic diagram of the main view;

[0023] Figure 3 for Figure 2 A top view schematic diagram of

[0024] Figure 4 for Figure 3 AA section view;

[0025] Figure 5 It is a structural schematic diagram of the dual-track vehicle-mounted folding screen retractable and extendable integrated device of the present invention (retracted state);

[0026] Figure 6 for Figure 5 A schematic diagram of the main view;

[0027] Figure 7 for Figure 6 A top view schematic diagram of

[0028] Figure 8 for Figure 7 BB-direction cross-sectional view;

[0029] Among them: 1. mounting seat; 10. hatch; 11. slide rail; 12. slide seat; 13. annular power belt assembly; a. power wheel; b. annular belt; m. hatch;

[0030] 2. Folding screen assembly; 20. Folding screen; 21. First screen body; 22. Second screen body;

[0031] 3. Power assembly; 30. Base; 31. Connecting seat; 310. Seat plate; c. U-shaped avoidance groove; 32. Track seat; 320. Upper guide track; 321. Lower guide track; h1. Sliding section; h2. Extension and retraction section; s1. Upper seat body; s2. Lower seat body; 33. Follow-up module; 330. Upper follow-up mold seat; 331. Lower follow-up mold seat; 34. Power device; 340. Power joint; 341. Power part; k. Avoidance gap; d. Power screw; e. Sliding module; e1. Sliding seat; e2. Sleeve; f. Power motor. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application is described in detail below in conjunction with the accompanying drawings and specific embodiments. 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.

[0033] 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", etc., indicating orientations or positional relationships, are 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 device or element referred to 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.

[0034] 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.

[0035] 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 directly connected or indirectly connected 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.

[0036] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean 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, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0037] It should be noted that when an element is referred to as being "fixed to" or "disposed 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", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

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

[0039] Specifically, the mounting base 1 is assembled with the vehicle frame through the periphery, and a hatch 10 extending left and right is formed on the mounting base 1. A hatch door m is slidably installed on the mounting base 1, and the hatch 10 of the mounting base 1 is opened or closed based on the sliding of the hatch door m.

[0040] In some specific embodiments, slide rails 11 are provided on opposite sides of the mounting seat 1, and the warehouse door m is docked by a slide seat 12 sliding on the slide rails 11. At the same time, an annular power belt assembly 13 is provided at one end of the warehouse opening 10 to drive the slide seat 12 to move to open or close the warehouse opening. Specifically, the annular power belt assembly 13 includes three power wheels a distributed in a triangular shape, and an annular belt b wound around the three power wheels a, wherein the annular belt b is fixedly connected to the slide seat 12, and the movement of the annular belt b drives the slide seat 12 to move up and down along the slide rail 11. In short, one side of the annular belt b extends in the up-and-down direction, so that the lifting and lowering adjustment of the slide seat 12 is implemented based on the movement of the annular belt b extending up and down, and then the warehouse door m is implemented.

[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 respectively installed and rotated around a folding center line, that is, the first screen body 21 and the second screen body 22 are folded and flipped up and down 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 base 31 for connecting the base 30 with the mounting base 1, a track base 32 formed on the connecting base 31 and having an upper guide track 320 and a lower guide track 321, a follower module 33 respectively slidably connected to the upper guide track 320 and the lower guide track 321 and fixed to the back of the first screen body 21 and the second screen body 22, and a power device 34 arranged on the base 30 and capable of linear movement along the direction of the inlet and outlet door m, wherein the base 30 is a conventional base; the connecting base 31 includes a seat plate 310 located on opposite sides and forming a U-shaped avoidance groove c, wherein the U-shaped avoidance groove c is aligned with the displacement channel, and the folded first screen body 21 and the second screen body 22 are connected to the upper guide track 320 and the lower guide track 321. The screen body 21 and the second screen body 22 can move in the U-shaped avoidance groove c; a displacement channel for avoiding the entry and exit of the folding screen assembly 2 is formed between the rail seats 32, and the upper guide rail 320 and the lower guide rail 321 both have a sliding section h1 and an expansion and retraction section h2. Under the linear push of the power device 34, the follower module 33 moves in the sliding section h1 and the expansion and retraction section h2 to synchronously and continuously retract and unfold the first screen body 21 and the second screen body 22, and when the first screen body 21 and the second screen body 22 are in the unfolded state, the follower module 33 is relatively abutted and forms a one-way lock based on the expansion and retraction section h2. At the same time, the follower module 33 is hidden on the inner side of the mounting seat 1 and blocks the corresponding position of the bay opening 10.

[0043] In some specific embodiments, the sliding section h1 extends along the direction of entering and exiting the warehouse door m, and the stowing section h2 is arranged to be forward and outwardly arched from the end of the sliding section close to the warehouse door m, wherein the stowing section h2 synchronously drives the first screen body 21 and the second screen body 22 to be relatively folded or unfolded in the linear motion of the power device 34. That is, the entry and exit mounting seat is formed based on the linear sliding section h1, and the first screen body 21 and the second screen body 22 are relatively folded or unfolded based on the stowing section h2, and the movements of the two can be continuous, and all parts do not need to be fully extended from the mounting seat to flip, and the movement can only be continuous at a specific position to avoid the bay opening 10 of the mounting seat 1.

[0044] In this example, the sliding section h1 is perpendicular to the length direction of the door m, and the stowing section h2 is an arc with a smooth transition, wherein the stowing section h2 of the upper guide rail 320 tilts upward and forward, and the stowing section h2 of the lower guide rail 321 tilts downward and forward, and the end of the tilted arc extends inward, and a one-way self-locking is formed based on the resistance of the inner extension end and the resistance of the follower module 33. Here, the one-way self-locking prevents the first screen body 21 and the second screen body 22 from being flipped open in a transitional manner, and also improves the stability of the flattened display screen; in addition, the one-way self-locking will not affect the retraction operation of the folding screen.

[0045] The track seat 32 includes an upper seat body s1 and a lower seat body s2 that are aligned and symmetrically arranged up and down (that is, the upper guide track 320 and the lower guide track 321 are symmetrically arranged up and down), the upper guide track 320 is located on the upper seat body s1, and the lower guide track 321 is located on the lower seat body s2; the follower module 33 includes an upper follower mold seat 330 and a lower follower mold seat 331 that are symmetrically arranged about the folding center line of the first screen body 21 and the second screen body 22, wherein the upper follower mold seat 330 and the lower follower mold seat 331 are in contact with each other to limit the first screen body 21 and the second screen body 22 to be in a flattened state. The motion synchronization formed by the symmetrical track is high, and the upper follower mold seat and the lower follower mold seat are symmetrically implemented to improve the synchronization and stability of the folding and unfolding of the folding screen.

[0046] In this example, the upper seat body s1 has two and the lower seat body s2 has two corresponding ones. The two groups are aligned to distribute the power generated by flipping and folding at intervals on the folding center line, so that the driving force for unfolding or folding the first screen body and the second screen body is relatively uniform, thereby improving the service life of the folding screen assembly. At the same time, the upper follower mold seat 330 slides on the upper guide track 320 from the two follower pins respectively; the lower follower mold seat 331 slides on the lower guide track 321 from the two follower pins respectively. Based on the synchronous displacement of the follower pin, the synchronous coordination of folding and unfolding is improved, and the limit self-locking is formed in the buckling and pressing resistance formed by the follower pin, further improving the stability of the flattening.

[0047] The power device 34 includes a power joint 340 connected to the rotation connection part of the first screen body 21 and the second screen body 22, and a power member 341 driving the power joint 340 to move linearly along the length direction perpendicular to the warehouse door m, wherein the upper follower mold base 330 and the lower follower mold base 331 are respectively formed with an avoidance gap k, and when the first screen body 21 and the second screen body 22 are in the unfolded state, the upper follower mold base 330 and the lower follower mold base 331 and the power joint 340 cooperate to flatten the first screen body 21 and the second screen body 22 in a sandwiched manner. The power member 341 includes a power screw rod d extending along the length direction perpendicular to the warehouse door m, a sliding module e cooperating with the power screw rod d, and a power motor f driving the power screw rod d to rotate forward and reversely, wherein the sliding module e includes a slide seat e1 parallel to the power screw rod d, and a sliding sleeve e2 sleeved on the slide seat e1, the sliding sleeve e2 is fixed to the power joint 340, and the power screw rod d and the sliding sleeve e2 form a screw nut structure.

[0048] In summary, after adopting the integrated device, based on the linear push of the power device, the follower module moves in the sliding section and the stowage section to synchronously and continuously stow and retract the first screen body and the second screen body, and when the first screen body and the second screen body are in the unfolded state, the follower module relatively conflicts and forms a one-way lock based on the stowage section; the follower module is hidden inside the mounting seat and blocks the corresponding bay opening position. Therefore, on the one hand, based on the continuous layout of the sliding section and the stowage section, the present invention can realize the synchronization and continuity of extension and retraction and flipping in a single linear pushing movement, thereby optimizing the structure while reducing the failure rate; on the other hand, based on the cooperation between the two movements, the folding screen assembly can be made There is no need to expose all of it, and the unfolded folding screen is in a one-way self-locking state and is flattened close to the opening, which effectively shortens the required unfolding and retracting space and can form an effective shielding to improve the overall aesthetics; on the third aspect, an entry and exit mounting seat is formed based on the straight sliding segment, and the first screen body and the second screen body are relatively folded or unfolded based on the unfolding and retracting segment, and the movements of the two can be continuous, and all parts do not need to be extended out of the mounting seat to flip over, and the movement can only be continuous at a specific position to avoid the opening of the mounting seat; at the same time, the vertical distance from the center of the arc to the center line of the sliding segment is equal to the radius of the arc, therefore, not only the moving path is determined, but also the folding path is controlled. In other words, under this path, the distance that the folding screen extends out of the mounting seat is the shortest, and it can still maintain a coherent movement between flipping and translation under linear power; fourthly, based on the one-way self-locking, the first screen body and the second screen body are prevented from being flipped open in transition, and the stability of the flattened display screen is also improved; in addition, the one-way self-locking will not affect the retraction operation of the folding screen; fifthly, the movement synchronization formed by the symmetrical track is high, and at the same time, the upper follower mold base and the lower follower mold base are symmetrically implemented to improve the synchronization and stability of the folding and unfolding of the folding screen; sixthly, multiple groups of alignment are used to transfer the power generated by flipping and folding in the folding process. The spaced distribution on the center line makes the driving force for unfolding or folding the first screen body and the second screen body relatively uniform, thereby increasing the service life of the folding screen assembly; at the same time, based on the synchronous displacement of the follower pin, the synchronous coordination of folding and unfolding is improved, and a limit self-locking is formed in the buckling resistance formed by the follower pin, further improving the stability of flattening; the seventh aspect is based on the setting of the avoidance gap, when the first screen body and the second screen body are in the unfolded state, the follower module and the power joint cooperate to flatten the first screen body and the second screen body in a clamping manner; the eighth aspect is based on the screw nut structure to implement smooth pushing, and at the same time, based on the movement of the annular belt, the slide seat is driven to move up and down along the slide rail to realize the opening or closing of the warehouse door.

[0049] 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 dual-track vehicle-mounted folding screen folding and unfolding integrated device, comprising a mounting seat with a door, a folding screen assembly that folds or unfolds based on the length direction of the door, and a power assembly, wherein the door extends in the left-right direction and can be opened or closed, characterized in that: The folding screen assembly includes a folding screen, a first screen body and a second screen body on which the folding screens are respectively installed and rotated around a folding center line, the power assembly includes a base, a connecting seat for connecting the base with the mounting seat, a track seat formed on the connecting seat and having an upper guide rail and a lower guide rail, a follower module respectively 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 device arranged on the base and capable of linear movement along the direction of entering and exiting the warehouse door, wherein a displacement channel for avoiding the entry and exit of the folding screen assembly is formed between the track seats, the upper guide rail and the lower guide rail both have a sliding section and an extension and retraction section, under the linear push of the power device, the follower module moves in the sliding section and the extension and retraction section to synchronously and continuously retract and unfold the first screen body and the second screen body, and when the first screen body and the second screen body are in an unfolded state, the follower module relatively conflicts and forms a one-way lock based on the extension and retraction section; the follower module is hidden inside the mounting seat and blocks the corresponding warehouse opening position.

2. The dual-track vehicle-mounted folding screen stowage and extension device according to claim 1, characterized in that: The sliding section extends along the direction of entering and exiting the warehouse door, and the expansion and retraction section is arranged to be forward and outwardly arched from the sliding section near the end of the warehouse door, wherein the expansion and retraction section synchronously drives the first screen body and the second screen body to be relatively folded or unfolded during the linear motion of the power device.

3. The dual-track vehicle-mounted folding screen stowage and extension device according to claim 2, characterized in that: The sliding section is perpendicular to the length direction of the warehouse door, and the expansion and retraction section is an arc with a smooth transition. 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, wherein the expansion and retraction section of the upper guide rail is tilted upward and forward, and the expansion and retraction section of the lower guide rail is tilted downward and forward.

4. The dual-track vehicle-mounted folding screen stowage and extension device according to claim 3, characterized in that: The end of the arc extends inward, and based on the arc limit formed by the inner extension end and the interference of the follower module, a one-way self-locking is formed; the upper guide rail and the lower guide rail are symmetrically arranged up and down; the follower module includes an upper follower mold base and a lower follower mold base symmetrically arranged about the folding center line of the first screen body and the second screen body, wherein the upper follower mold base and the lower follower mold base are in conflict with each other to limit the first screen body and the second screen body to be in a flattened state.

5. The dual-track vehicle-mounted folding screen stowage and extension device according to claim 4, characterized in that: The track seat includes an upper seat body and a lower seat body which are aligned up and down and symmetrically arranged, the upper guide track is located on the upper seat body, and the lower guide track is located on the lower seat body, wherein there are multiple upper seats which are spaced side by side, and the lower seats correspond to the upper seats one by one.

6. The dual-track vehicle-mounted folding screen stowage and extension device according to claim 5, characterized in that: The upper seat body has two strips, and the lower seat body has two strips correspondingly. The upper follower mold seat slides on the upper guide rails from two follower pins respectively; the lower follower mold seat slides on the lower guide rails from two follower pins respectively.

7. The dual-track vehicle-mounted folding screen stowage and extension device according to claim 1, characterized in that: The connecting seat includes seat plates located on opposite sides and forming a U-shaped avoidance groove, wherein the U-shaped avoidance groove is aligned with the displacement channel, and the folded first screen body and the second screen body can move from the U-shaped avoidance groove.

8. The dual-track vehicle-mounted folding screen stowage and extension device according to claim 1, characterized in that: The power device includes a power joint connected to the rotating connection part of the first screen body and the second screen body, and a power part that drives the power joint to move linearly along a direction perpendicular to the length of the warehouse door, wherein an avoidance gap 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 joint cooperate to flatten the first screen body and the second screen body in a clamping manner.

9. The dual-track vehicle-mounted folding screen stowage and extension device according to claim 8, characterized in that: The power component includes a power screw extending in a direction perpendicular to the length of the warehouse door, a sliding module cooperating with the power screw, and a power motor driving the power screw to rotate forward and reversely, wherein the sliding module includes a sliding seat parallel to the power screw, a sliding sleeve mounted on the sliding seat, the sliding sleeve is fixed to the power joint, and the power screw and the sliding sleeve constitute a screw nut structure.

10. The dual-track vehicle-mounted folding screen stowage and extension device according to claim 1, characterized in that: The bin door is slidably mounted on the mounting base, wherein the bin opening of the mounting base is opened or closed based on the sliding of the bin door.

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