Folding and retracting device, seat, vehicle and aircraft

Abstract

The invention relates to the technical field of storage devices, in particular to a folding and retracting device, a seat, a vehicle and an aircraft. The folding and retracting device is used for folding and unfolding the foldable module, in the folding and retracting device, a sliding mechanism is arranged on the first support in a sliding mode, and the sliding mechanism is connected with the foldable module; the unfolding mechanism is connected with the sliding mechanism and the foldable module, and the unfolding mechanism and the foldable module are suitable for sliding along with the sliding mechanism so as to move out of or move in the first support; when the foldable module is moved out of the first support, the unfolding mechanism can unfold the foldable module. When the folding and retracting device is used, under the condition that the unfolding mechanism and the foldable module slide out of the first support along with the sliding mechanism, the unfolding mechanism can unfold the foldable module, and the using requirement of passengers for the foldable module is met. And under the condition that the unfolding mechanism and the foldable module slide into the first bracket along with the sliding mechanism, the folding of the unfolding mechanism and the foldable module can be realized.

Description

Technical Field

[0001] The present invention relates to the technical field of storage devices, and in particular to a folding and retracting device, a seat, a vehicle, and an aircraft. Background Art

[0002] A rear headrest screen refers to a display screen installed on the back of a seat, which is mainly used to provide entertainment functions for rear passengers and improve the riding experience of the passengers.

[0003] In the current technology, the rear headrest screen is fixedly installed on the back of the seat through a fixed bracket. On the one hand, it poses a potential safety hazard to the passengers, especially the rear children; on the other hand, due to the continuous presence of the rear headrest screen, it will occupy the riding and activity space of the rear passengers, bringing an unpleasant riding experience to the passengers. Summary of the Invention

[0004] Embodiments of the present invention provide a folding and retracting device, a seat, a vehicle, and an aircraft to solve the problems in the prior art that the rear headrest screen is fixedly installed on the back of the seat through a fixed bracket, posing a potential safety hazard to the passengers, and occupying the riding and activity space of the passengers, bringing an unpleasant riding experience to the passengers.

[0005] In a first aspect, embodiments of the present invention provide a folding and retracting device for folding and unfolding a foldable module. The folding and retracting device includes:

[0006] A first bracket;

[0007] A sliding mechanism slidably disposed on the first bracket and connected to the foldable module;

[0008] An unfolding mechanism respectively connected to the sliding mechanism and the foldable module. The unfolding mechanism and the foldable module are adapted to slide with the sliding mechanism to move out of or into the first bracket;

[0009] When the foldable module moves out of the first bracket, the unfolding mechanism can unfold the foldable module.

[0010] In some embodiments, the foldable module is provided with a folding portion, a first module, and a second module, and the folding portion is located between the first module and the second module;

[0011] The sliding mechanism is respectively hinged to the first module and the second module; and

[0012] The unfolding mechanism includes an unfolding component respectively connected to the first module and the second module. The unfolding component causes the first module and the second module to rotate around the folding portion to fold or unfold.

[0013] In some embodiments, the unfolding assembly includes,

[0014] a first moving member and a second moving member. The first moving member is movably disposed on the first module, and the second moving member is movably disposed on the second module. The first moving member and the second moving member are adapted to move towards the folding portion simultaneously or move away from the folding portion simultaneously;

[0015] a first connecting rod and a second connecting rod. The first ends of the first connecting rod and the second connecting rod are respectively hinged to the sliding mechanism. In the moving direction of the sliding mechanism, the hinged positions of the first connecting rod and the second connecting rod with the sliding mechanism are away from the foldable module; the second end of the first connecting rod is hinged to the first moving member, and the second end of the second connecting rod is hinged to the second moving member;

[0016] When the first moving member and the second moving member move towards the folding portion simultaneously, the first module and the second module are folded; when the first moving member and the second moving member move away from the folding portion simultaneously, the first module and the second module are unfolded.

[0017] In some embodiments, the unfolding mechanism further includes,

[0018] a first unfolding driving assembly, which is respectively connected to the first moving member and the first module, and the first unfolding driving assembly drives the first moving member to move reciprocally;

[0019] a second unfolding driving assembly, which is respectively connected to the second moving member and the second module, and the second unfolding driving assembly drives the second moving member to move reciprocally.

[0020] In some embodiments, the first unfolding driving assembly includes a first lead screw and a first motor. The first lead screw is respectively connected to the first motor and the first moving member, and the first motor drives the first lead screw to rotate to make the first moving member move reciprocally;

[0021] The second unfolding driving assembly includes a second lead screw and a second motor. The second lead screw is respectively connected to the second motor and the second moving member, and the second motor drives the second lead screw to rotate to make the second moving member move reciprocally.

[0022] In some embodiments, the first unfolding driving assembly further includes a first support base. The first support base is respectively connected to the first lead screw, the first motor, and the first module, and the first support base is also hinged to the sliding mechanism to hinge the sliding mechanism to the first module;

[0023] The second unfolding driving assembly further includes a second support base, which is respectively connected to the second lead screw, the second motor, and the second module. The second support base is also hinged to the sliding mechanism to hinge the sliding mechanism to the second module.

[0024] In some embodiments, the first module is provided with a first guiding groove, which is recessed into the first module from the end surface of the first module in the extending direction of the folding portion. The first moving member is adapted to be arranged in the first guiding groove;

[0025] The second module is provided with a second guiding groove, which is recessed into the second module from the end surface of the second module in the extending direction of the folding portion. The second moving member is adapted to be arranged in the second guiding groove.

[0026] In some embodiments, the sliding mechanism includes

[0027] a sliding block, which is slidably connected to the first bracket. At one end of the sliding block in the moving direction of the sliding mechanism, it is hinged to the foldable module;

[0028] a sliding driving mechanism, which is respectively connected to the sliding block and the first bracket. The sliding driving mechanism is adapted to drive the sliding block to reciprocate on the first bracket.

[0029] In some embodiments, the first bracket includes a rack portion, and the rack portion is provided with first external teeth; and

[0030] the sliding driving mechanism includes a first gear, which is rotatably connected to the sliding block and meshes with the first external teeth, so that when the first gear and the first external teeth move relative to each other, the sliding block moves on the first bracket.

[0031] In some embodiments, the foldable module is provided with a folding portion;

[0032] The first bracket includes a first connecting portion and two pairs of the rack portions. In the extending direction of the folding portion, one end of the first connecting portion is connected to one pair of the rack portions, and the other end is connected to the other pair of the rack portions;

[0033] There are two sliding mechanisms and unfolding mechanisms respectively, and each sliding mechanism is respectively connected to one unfolding mechanism and one pair of the rack portions.

[0034] In some embodiments, in the direction perpendicular to the extending direction of the folding portion and the moving direction of the sliding mechanism, each pair of the rack portions is spaced and symmetrically arranged, and one sliding block is arranged between each pair of the rack portions.

[0035] In some embodiments, one or at least two first gears are provided, and at least two of the first gears are arranged at intervals along the moving direction of the sliding mechanism;

[0036] The first gears are arranged between each pair of the rack portions, and the first gears are respectively engaged with the two rack portions.

[0037] In some embodiments, one pair or at least two pairs of first gears are provided, and at least two pairs of the first gears are arranged at intervals along the moving direction of the sliding mechanism, and each pair of the first gears is arranged at intervals in a direction perpendicular to the extending direction of the folding portion and the moving direction of the sliding mechanism;

[0038] Each of the first gears in each pair of the first gears is engaged with a corresponding one of the rack portions.

[0039] In some embodiments, the unfolding assembly of the unfolding mechanism includes a first connecting rod and a second connecting rod;

[0040] One end of the sliding block close to the first connecting portion is rotatably connected to the first gear, the other end of the sliding block far from the first connecting portion is hinged to the foldable module, and one end of the first connecting rod and one end of the second connecting rod are respectively hinged to the middle of the sliding block and on the side close to the first gear.

[0041] In some embodiments, a guiding slope surface is provided at the end of the rack portion far from the first connecting portion; in each pair of the rack portions,

[0042] The guiding slope surface of one of the rack portions and the guiding slope surface of the other rack portion are mirror images and are arranged in an outwardly expanding shape. When the foldable module is unfolded, the guiding slope surface of one of the rack portions limits one of the first connecting rod and the second connecting rod, and the guiding slope surface of the other rack portion limits the other of the first connecting rod and the second connecting rod.

[0043] In some embodiments, when the foldable module is moved into the first bracket, at least a part of the foldable module is located in the space surrounded by the first bracket.

[0044] In some embodiments, the sliding driving mechanism further includes a third motor, the third motor is fixedly connected to the sliding block and is in transmission connection with the first gear, and the third motor drives the first gear to rotate so that the first gear and the first external teeth move relatively.

[0045] In some embodiments, the folding and retracting device further includes two first detection elements disposed on the first bracket. In the moving direction of the sliding mechanism, each first detection element corresponds to an end of the rack portion;

[0046] The third motor is electrically connected to the first detection element, and the third motor stops working when the first detection element detects the first gear.

[0047] In some embodiments, a chute is provided on the rack portion, and the chute extends in the moving direction of the sliding mechanism; a part of the sliding block is disposed in the chute.

[0048] In some embodiments, the folding and retracting device further includes,

[0049] a second bracket, the second bracket is hinged to an end of the first bracket close to the foldable module;

[0050] a rotation driving mechanism, which is respectively connected to the second bracket and the first bracket, and the rotation driving mechanism drives the second bracket and the first bracket to rotate relative to each other to adjust the angle of the foldable module.

[0051] In some embodiments, the second bracket includes an arc portion, the arc portion is disposed at an end of the first bracket away from the foldable module, the arc portion takes the hinge position of the second bracket and the first bracket as the center of the circle, and a second external tooth is provided on the surface of the arc portion facing the center of the circle;

[0052] The rotation driving mechanism includes a second gear, the second gear is rotatably connected to the first bracket and meshes with the second external tooth, and the relative movement of the second gear with respect to the second external tooth causes the first bracket and the second bracket to rotate relative to each other.

[0053] In some embodiments, there are two second gears, and in the rotation direction of the first bracket, the two second gears are symmetrically arranged, and the two second gears are respectively meshed with the second external tooth.

[0054] In some embodiments, the rotation driving mechanism further includes a fourth motor, the fourth motor is fixedly connected to the first bracket and is in transmission connection with the second gear, and the fourth motor drives the second gear to rotate to make the first bracket and the second bracket rotate relative to each other.

[0055] In some embodiments, the folding and retracting device further includes two second detection elements disposed on the second bracket. In the rotation direction of the first bracket, each second detection element corresponds to an end of the arc portion;

[0056] The fourth motor is electrically connected to the second detection element, and the fourth motor stops working when the second detection element detects the second gear.

[0057] In some embodiments, the folding and retracting device further includes a third detection element for obtaining the sitting posture or movement state of the occupant;

[0058] The fourth motor is electrically connected to the third detection element, and the fourth motor operates according to the sitting posture or movement state of the occupant obtained by the third detection element, and adjusts the angle of the foldable module through the first bracket.

[0059] In a second aspect, an embodiment of the present invention further provides a seat, the seat is provided with an installation cavity; the seat (80) includes the folding and retracting device as described above, the folding and retracting device is arranged in the installation cavity, and the folding and retracting device includes a second bracket, and the second bracket is connected to the cavity wall of the installation cavity.

[0060] In some embodiments, the seat is provided with an opening, and the opening communicates with the installation cavity; the seat further includes a cover driving assembly and a cover plate, the cover driving assembly and the cover plate are respectively arranged in the installation cavity, the cover driving assembly is respectively connected to the seat and the cover plate, and the cover driving assembly is adapted to drive the cover plate to reciprocate to open or close the opening.

[0061] In some embodiments, the foldable module is provided with a folding portion;

[0062] The cover driving assembly includes two electric push rods, and in the extending direction of the folding portion, each electric push rod is connected to an end of the cover plate.

[0063] In a third aspect, an embodiment of the present invention further provides a vehicle, the vehicle includes an image display module and the folding and retracting device as described above, and the image display module is a foldable module; the sliding mechanism and the unfolding mechanism of the folding and retracting device are respectively connected to the image display module, or,

[0064] The vehicle includes the seat as described above.

[0065] In a fourth aspect, an embodiment of the present invention further provides an aircraft, the aircraft includes an image display module and the folding and retracting device as described above, and the image display module is a foldable module; the sliding mechanism and the unfolding mechanism of the folding and retracting device are respectively connected to the image display module, or the aircraft includes the seat as described above.

[0066] In view of the prior art, the present invention has the following advantages:

[0067] When the folding and retracting device according to the embodiment of the present invention is in use, when the unfolding mechanism and the foldable module slide out of the first bracket along with the sliding mechanism, the unfolding mechanism can unfold the foldable module to meet the usage requirements of the occupant for the foldable module. When the unfolding mechanism and the foldable module slide into the first bracket along with the sliding mechanism, the unfolding mechanism and the foldable module can be stored, reducing the space occupied by the foldable module, avoiding collisions between the foldable module and the occupant, and preventing damage to the foldable module. It can also improve the aesthetics and integrity of the device equipped with the folding and retracting device.

[0068] The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly, it can be implemented according to the content of the specification. In order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following specifically describes the embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or in the prior art, the following will briefly introduce the drawings required for the description of the embodiments.

[0070] Figure 1 is a schematic structural diagram of the folding and retracting device in the first state according to the embodiment of the present application. The first state is that the foldable module is moved into the first bracket and folded;

[0071] Figure 2 is a schematic structural diagram of the exploded view of the folding and retracting device according to the embodiment of the present application;

[0072] Figure 3 is a schematic structural diagram of the folding and retracting device in the second state according to the embodiment of the present application. The second state is that the foldable module is moved out of the first bracket and folded;

[0073] Figure 4 is a schematic structural diagram of the folding and retracting device in the third state according to the embodiment of the present application. The third state is that the foldable module is moved out of the first bracket and partially unfolded;

[0074] Figure 5 is a schematic structural diagram of the folding and retracting device in the fourth state according to the embodiment of the present application. The fourth state is that the foldable module is moved out of the first bracket and fully unfolded;

[0075] Figure 6 is a schematic structural diagram of the connection between the first bracket and the second bracket according to the embodiment of the present application;

[0076] Figure 7 is a schematic structural diagram of the seat according to the embodiment of the present application;

[0077] Figure 8It is a schematic structural diagram of the foldable module in the folding and retracting device on the seat in the embodiment of the present application when it is folded and moved into the first bracket;

[0078] Figure 9 It is a schematic structural diagram of the foldable module in the folding and retracting device on the seat in the embodiment of the present application when it is fully unfolded;

[0079] Figure 10 It is a schematic structural diagram of the cover plate and the electric push rod in the embodiment of the present application;

[0080] Figure 11 It is a schematic structural diagram of the first use state of the folding and retracting device in the embodiment of the present application;

[0081] Figure 12 It is a schematic structural diagram of the second use state of the folding and retracting device in the embodiment of the present application;

[0082] Figure 13 It is a schematic structural diagram of the third use state of the folding and retracting device in the embodiment of the present application.

[0083] Reference numerals:

[0084] 10. First bracket; 11. Rack portion; 111. Guide slope; 12. First external tooth; 13. First connecting portion; 14. Second connecting portion; 141. First shaft portion;

[0085] 20. Sliding mechanism; 21. Sliding block; 22. First gear;

[0086] 30. Deployment mechanism; 311. First moving member; 312. Second moving member; 313. First connecting rod; 314. Second connecting rod; 32. First deployment drive assembly; 321. First lead screw; 322. First support seat; 33. Second deployment drive assembly; 331. Second lead screw; 332. Second support seat;

[0087] 40. Second bracket; 41. Arc portion; 42. Second external tooth; 43. Third connecting portion; 44. First mounting hole;

[0088] 50. Rotation drive mechanism; 51. Second gear;

[0089] 61. First detection element; 62. Second detection element; 63. Third detection element;

[0090] 70. Foldable module; 71. Folding portion; 72. First module; 721. First guide groove; 73. Second module; 731. Second guide groove;

[0091] 80. Seat; 81. Installation cavity; 82. Second mounting hole;

[0092] 90. Cover plate; 91. Electric push rod. Detailed implementation mode

[0093] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present invention can be more thoroughly understood and the scope of the present invention can be fully conveyed to those skilled in the art.

[0094] Refer to Figures 1 to 6 As shown, an embodiment of the present application provides a folding and retracting device, which is used to fold and unfold a foldable module 70 and is suitable for being installed on a device provided with the foldable module 70. It can be understood that the application scenarios of the folding and retracting device and the specific structure of the foldable module 70 are not limited in the embodiments of the present application. For example, high-speed rails, airplanes, automobiles, etc. are provided with foldable modules 70, the folding and retracting device is connected to the corresponding high-speed rails, airplanes, automobiles, etc., and the foldable module 70 is an image display module, etc.

[0095] In some embodiments, refer to Figures 1 to 5 As shown, the folding and retracting device includes a first bracket 10, a sliding mechanism 20, and a deploying mechanism 30; the sliding mechanism 20 is slidably arranged on the first bracket 10, and the sliding mechanism 20 is connected to the foldable module 70; the deploying mechanism 30 is respectively connected to the sliding mechanism 20 and the foldable module 70, and the deploying mechanism 30 and the foldable module 70 are adapted to slide with the sliding mechanism 20 to move out of or into the first bracket 10; when the foldable module 70 moves out of the first bracket 10, the deploying mechanism 30 can deploy the foldable module 70.

[0096] In the folding and retracting device of the embodiment of the present application, the deploying mechanism 30 and the foldable module 70 slide on the first bracket 10 with the sliding mechanism 20 at the same time and are adapted to move out of or into the first bracket 10. Among them, the deploying mechanism 30 and the foldable module 70 can move out of the first bracket 10 completely or partially; for the deploying mechanism 30, it is necessary to ensure that it does not affect the deployment or folding of the foldable module 70; for the foldable module 70, it is necessary to ensure that it does not interfere with other components during deployment or folding, such as interfering with the first bracket 10. In the embodiment of the present application, the case where the deploying mechanism 30 moves out of the first bracket 10 partially and the foldable module 70 moves out of the first bracket 10 completely is taken as an example for illustration.

[0097] When the folding and retracting device according to the embodiment of the present application is in use, when the unfolding mechanism 30 and the foldable module 70 slide out of the first bracket 10 along with the sliding mechanism 20, the unfolding mechanism 30 can unfold the foldable module 70 to meet the use requirements of the occupant for the foldable module 70. When the unfolding mechanism 30 and the foldable module 70 slide into the first bracket 10 along with the sliding mechanism 20, the unfolding mechanism 30 and the foldable module 70 can be stored, reducing the space occupied by the foldable module 70, avoiding collisions between the foldable module 70 and the occupant, etc., and avoiding damage to the foldable module 70. It can also improve the aesthetics and integrity of the device provided with the folding and retracting device.

[0098] In some embodiments, referring to Figures 1 to 5 As shown, the foldable module 70 is provided with a folding part 71, a first module 72 and a second module 73. The folding part 71 is located between the first module 72 and the second module 73; the sliding mechanism 20 is respectively hinged to the first module 72 and the second module 73; and the unfolding mechanism 30 includes an unfolding component which is respectively connected to the first module 72 and the second module 73. The unfolding component rotates the first module 72 and the second module 73 around the folding part 71 to fold or unfold. In the above structure of the embodiment of the present application, the unfolding component is used to drive the first module 72 and the second module 73 to rotate to fold or unfold the foldable module 70, which has the advantage of convenient operation.

[0099] In some embodiments, referring to Figures 2 to 4 As shown, the unfolding component includes a first moving member 311, a second moving member 312, a first connecting rod 313 and a second connecting rod 314; the first moving member 311 is movably arranged on the first module 72, the second moving member 312 is movably arranged on the second module 73, and the first moving member 311 and the second moving member 312 are adapted to move towards the folding part 71 simultaneously or move away from the folding part 71 simultaneously; the first ends of the first connecting rod 313 and the second connecting rod 314 are respectively hinged to the sliding mechanism 20. In the moving direction of the sliding mechanism 20, the hinged positions of the first connecting rod 313 and the second connecting rod 314 with the sliding mechanism 20 are far from the foldable module 70; the second end of the first connecting rod 313 is hinged to the first moving member 311, and the second end of the second connecting rod 314 is hinged to the second moving member 312; when the first moving member 311 and the second moving member 312 move towards the folding part 71 simultaneously, the first module 72 and the second module 73 are folded; when the first moving member 311 and the second moving member 312 move away from the folding part 71 simultaneously, the first module 72 and the second module 73 are unfolded.

[0100] In the embodiment of the present application, the first end of the first connecting rod 313 is hinged to the sliding mechanism 20, the second end of the first connecting rod 313 is hinged to the first moving member 311, the first moving member 311 is movably arranged on the first module 72, and the first module 72 is hinged to the sliding mechanism 20. In the above structure, when the first moving member 311 moves on the first module 72, the first module 72 can rotate around the folding portion 71. The first end of the second connecting rod 314 is hinged to the sliding mechanism 20, the second end of the second connecting rod 314 is hinged to the second moving member 312, the second moving member 312 is movably arranged on the second module 73, and the second module 73 is hinged to the sliding mechanism 20. In the above structure, when the second moving member 312 moves on the second module 73, the second module 73 can rotate around the folding portion 71.

[0101] In the above structure of the embodiment of the present application, the folding and unfolding of the first module 72 and the second module 73 are realized through the first moving member 311, the second moving member 312, the first connecting rod 313 and the second connecting rod 314, which has the advantage of simple structure.

[0102] In some embodiments, the unfolding mechanism 30 further includes a first unfolding driving assembly 32 and a second unfolding driving assembly 33; the first unfolding driving assembly 32 is respectively connected to the first moving member 311 and the first module 72, and the first unfolding driving assembly 32 drives the first moving member 311 to reciprocate; the second unfolding driving assembly 33 is respectively connected to the second moving member 312 and the second module 73, and the second unfolding driving assembly 33 drives the second moving member 312 to reciprocate. In the above structure of the embodiment of the present application, through the arrangement of the first unfolding driving assembly 32 and the second unfolding driving assembly 33, the first moving member 311 is driven to reciprocate and the second moving member 312 is driven to reciprocate respectively, which has the advantage of simple structure. Moreover, for automatically driving the first moving member 311 and the second moving member 312 to move, the folding and retracting device can achieve automation.

[0103] In some embodiments, the first unfolding drive assembly 32 includes a first lead screw 321 and a first motor. The first lead screw 321 is respectively connected to the first motor and the first moving member 311. The first motor drives the first lead screw 321 to rotate to make the first moving member 311 reciprocate; the second unfolding drive assembly 33 includes a second lead screw 331 and a second motor. The second lead screw 331 is respectively connected to the second motor and the second moving member 312. The second motor drives the second lead screw 331 to rotate to make the second moving member 312 reciprocate. In the above structure of the embodiments of the present application, using the first lead screw 321 and the second lead screw 331 as the transmission structure is relatively simple, with high transmission accuracy, having the advantages of high positioning accuracy and repeat positioning accuracy, and being suitable for application scenarios with high requirements for position accuracy such as folding and retracting devices. Moreover, the transmission of the first lead screw 321 and the second lead screw 331 has relatively stable motion characteristics, which can ensure the stability of the motion process, and has the advantages of small friction loss and high transmission efficiency.

[0104] In some embodiments, the first unfolding drive assembly 32 further includes a first support base 322. The first support base 322 is respectively connected to the first lead screw 321, the first motor, and the first module 72. The first support base 322 is also hinged to the sliding mechanism 20 to hinge the sliding mechanism 20 to the first module 72; the second unfolding drive assembly 33 further includes a second support base 332. The second support base 332 is respectively connected to the second lead screw 331, the second motor, and the second module 73. The second support base 332 is also hinged to the sliding mechanism 20 to hinge the sliding mechanism 20 to the second module 73. In the above structure of the embodiments of the present application, the setting of the first support base 322 can realize the setting of the first lead screw 321 and the first motor, and the hinging of the sliding mechanism 20 to the first module 72. Compared with the need to use multiple components for the above connections, it has the advantages of simple structure, few component numbers, and simple assembly. The setting of the second support base 332 can realize the setting of the second lead screw 331 and the second motor, and the hinging of the sliding mechanism 20 to the second module 73. Compared with the need to use multiple components for the above connections, it has the advantages of simple structure, few component numbers, and simple assembly.

[0105] In some embodiments, the first module 72 is provided with a first guide groove 721. The first guide groove 721 is recessed from the end surface of the first module 72 in the extending direction of the folding part 71 into the first module 72. The first moving member 311 is adapted to be arranged in the first guide groove 721; the second module 73 is provided with a second guide groove 731. The second guide groove 731 is recessed from the end surface of the second module 73 in the extending direction of the folding part 71 into the second module 73. The second moving member 312 is adapted to be arranged in the second guide groove 731.

[0106] In the embodiments of the present application, the first guiding groove 721 is provided to limit the movement trajectory of the first moving member 311, and when the first lead screw 321 rotates, the first moving member 311 can move relative to the first lead screw 321. Also, the second guiding groove 731 is provided to limit the movement trajectory of the second moving member 312, and when the second lead screw 331 rotates, the second moving member 312 can move relative to the second lead screw 331.

[0107] In some embodiments, the first motor and the second motor have a self-locking function to maintain the unfolded state after the first module 72 and the second module 73 are unfolded. There are various motors with self-locking functions in the current technology, and the embodiments of the present application do not limit the specific structures of the first motor and the second motor.

[0108] In some embodiments, the sliding mechanism 20 includes a sliding block 21 and a sliding driving mechanism. The sliding block 21 is slidably connected to the first bracket 10. In the moving direction A of the sliding mechanism 20, one end of the sliding block 21 is hinged to the foldable module 70; the sliding driving mechanism is respectively connected to the sliding block 21 and the first bracket 10, and the sliding driving mechanism is adapted to drive the sliding block 21 to reciprocate on the first bracket 10.

[0109] In the embodiments of the present application, the foldable module 70 is hinged to the sliding mechanism 20 through the sliding block 21, specifically, the first module 72 and the second module 73 are respectively hinged to the sliding block 21. When the sliding block 21 slides on the first bracket 10, the sliding block 21 drives the foldable module 70 to slide synchronously.

[0110] In the above structure of the embodiments of the present application, using the sliding driving mechanism to drive the sliding block 21 to reciprocate on the first bracket 10 has the advantage of convenient operation.

[0111] In some embodiments, the first bracket 10 includes a rack portion 11, and the rack portion 11 is provided with first external teeth 12; and the sliding driving mechanism includes a first gear 22. The first gear 22 is rotatably connected to the sliding block 21 and meshes with the first external teeth 12 to move the sliding block 21 on the first bracket 10 when the first gear 22 and the first external teeth 12 move relative to each other.

[0112] In the above structure of the embodiments of the present application, the first gear 22 on the sliding block 21 and the first external teeth 12 on the rack portion 11 form a gear-rack meshing structure. Using gear-rack meshing transmission to move the sliding block 21 on the first bracket 10 has the advantages of long service life, stable operation, and high reliability; the meshing of gear-rack meshing transmission has less sliding, which can reduce transmission loss, effectively transmit the input power to the output end, and achieve efficient power transmission; in addition, the transmission is stable and has high precision, and can achieve precise motion control.

[0113] In some embodiments, in order to limit the sliding trajectory of the sliding block 21 and prevent the sliding block 21 from disengaging from the first bracket 10, a chute is provided on the rack portion 11. The chute extends along the moving direction of the sliding mechanism 20; a part of the sliding block 21 is disposed in the chute.

[0114] In some embodiments, the first bracket 10 includes a first connecting portion 13 and two pairs of rack portions 11. In the extending direction of the folding portion 71, one end of the first connecting portion 13 is connected to one pair of rack portions 11, and the other end is connected to the other pair of rack portions 11; two sliding mechanisms 20 and two deploying mechanisms 30 are respectively provided, and each sliding mechanism 20 is respectively connected to a deploying mechanism 30 and a pair of rack portions 11.

[0115] In the embodiments of the present application, in the extending direction of the folding portion 71, the first pair of rack portions 11 on one side of the first bracket 10 is connected to one sliding mechanism 20, and the second pair of rack portions 11 on the other side of the first bracket 10 is connected to the other sliding mechanism 20. Each sliding mechanism 20 is connected to a deploying mechanism 30. Thus, the first module 72 and the second module 73 are respectively connected to the two deploying mechanisms 30, and the deployment and folding are more stable.

[0116] In some embodiments, in the direction perpendicular to the extending direction of the folding portion 71 and the moving direction of the sliding mechanism 20, each pair of rack portions 11 is spaced apart and symmetrically arranged, and a sliding block 21 is disposed between each pair of rack portions 11. Thus, one sliding block 21 is connected to the two folding portions 71, and the sliding of the sliding block 21 is more stable and reliable.

[0117] In some embodiments, one or at least two first gears 22 are provided. The at least two first gears 22 are spaced apart along the moving direction of the sliding mechanism 20; the first gears 22 are disposed between each pair of rack portions 11, and the first gears 22 are respectively meshed with the two rack portions 11.

[0118] In the embodiments of the present application, one first gear 22 is disposed between a pair of rack portions 11, and the first gear 22 is respectively meshed with the two rack portions 11, so as to meet the meshing transmission requirement between the first gear 22 and the first external teeth 12. When at least two first gears 22 are provided in the sliding mechanism 20, each first gear 22 is disposed between the two rack portions 11, and each first gear 22 is respectively meshed with the two rack portions 11. In addition to meeting the meshing transmission requirement between the first gear 22 and the first external teeth 12, it also has the advantage of more stable transmission.

[0119] In some other embodiments, the first gear 22 is provided with one pair or at least two pairs. At least two pairs of the first gears 22 are arranged at intervals along the moving direction of the sliding mechanism 20. Each pair of the first gears 22 is arranged at intervals along a direction perpendicular to the extending direction of the folding portion 71 and the moving direction of the sliding mechanism 20. Each first gear 22 in each pair of the first gears 22 meshes with a corresponding rack portion 11.

[0120] In the embodiments of the present application, one pair of the first gears 22 is arranged between one pair of the rack portions 11. Each first gear 22 in each pair of the first gears 22 meshes with a corresponding rack portion 11, which can meet the meshing transmission requirements of the first gear 22 and the first external teeth 12. Moreover, only one first gear 22 needs to mesh with one rack portion 11, and the meshing assembly is relatively simple. When at least two pairs of the first gears 22 are provided in the sliding mechanism 20, in addition to the above advantages, it also has the advantage of more stable transmission.

[0121] In some embodiments, the deployment assembly of the deployment mechanism 30 includes a first connecting rod 313 and a second connecting rod 314. One end of the sliding block 21 close to the first connecting portion 13 is rotatably connected to the first gear 22. The other end of the sliding block 21 away from the first connecting portion 13 is hinged to the foldable module 70. One end of the first connecting rod 313 and one end of the second connecting rod 314 are respectively hinged to the middle of the sliding block 21 and on the side close to the first gear 22. In the above structure of the embodiments of the present application, the above connection positions of the sliding block 21 with the first gear 22, the foldable module 70, the first connecting rod 313 and the second connecting rod 314 can prevent the first gear 22 from interfering with the first connecting rod 313 and the second connecting rod 314, affecting the operation of the deployment mechanism 30, and can ensure the stable sliding of the sliding block 21.

[0122] In some embodiments, a guiding slope 111 is provided at the end of the rack portion 11 away from the first connecting portion 13. In each pair of the rack portions 11, the guiding slope 111 of one rack portion 11 and the guiding slope 111 of the other rack portion 11 are mirror images and are arranged in an outward expanding shape. When the foldable module 70 is deployed, the guiding slope 111 of one rack portion 11 limits one of the first connecting rod 313 and the second connecting rod 314, and the guiding slope 111 of the other rack portion 11 limits the other of the first connecting rod 313 and the second connecting rod 314.

[0123] In the embodiments of the present application, when the foldable module 70 is deployed, an included angle exists between the first connecting rod 313 and the second connecting rod 314. The first connecting rod 313 and the second connecting rod 314 are used to support the foldable module 70. The setting of the guiding slope 111 can limit the first connecting rod 313 and the second connecting rod 314, so that the first connecting rod 313 and the second connecting rod 314 stably support the foldable module 70 and preferably maintain the supporting state.

[0124] In some embodiments, when the foldable module 70 is moved into the first bracket 10, at least a part of the foldable module 70 is located within the space enclosed by the first bracket 10. In this way, all of the foldable module 70 can be stored, effectively preventing the foldable module 70 from being damaged due to knocking; moreover, the foldable module 70 does not occupy space outside the folding and retracting device, and the overall volume of the folding and retracting device is relatively small after the foldable module 70 is stored.

[0125] In some embodiments, the sliding drive mechanism further includes a third motor. The third motor is fixedly connected to the sliding block 21 and is in transmission connection with the first gear 22. The third motor drives the first gear 22 to rotate so that the first gear 22 and the first external teeth 12 move relative to each other. In the above structure of the embodiment of the present application, using the third motor to drive the first gear 22 to rotate to achieve the relative movement of the first gear 22 and the first external teeth 12 has the advantages of simple and stable structure.

[0126] In some embodiments, when the third motor is in transmission connection with at least two first gears 22, the third motor can be directly connected to one first gear 22, and the first gear 22 is connected to the remaining first gears 22 by a transmission gear or transmitted by a transmission structure such as a transmission belt. Alternatively, the third motor is in transmission connection with all the first gears 22 by a transmission structure such as a transmission belt, which can be set according to the usage requirements and layout requirements.

[0127] In some embodiments, the folding and retracting device further includes two first detection elements 61 provided on the first bracket 10. In the moving direction of the sliding mechanism 20, each first detection element 61 corresponds to an end of the rack portion 11; the third motor is electrically connected to the first detection element 61, and the third motor stops working when the first detection element 61 detects the first gear 22.

[0128] In the embodiment of the present application, the first detection element 61 is arranged at an appropriate position on the first bracket 10 so that when the first detection element 61 detects the first gear 22, the first gear 22 is located at a first preset position and a second preset position. At this time, the third motor stops working, the first gear 22 stops rotating and stops moving on the rack portion 11. In this way, the excessive movement of the first gear 22 can be avoided, which has the advantage of simple control.

[0129] Wherein, the first preset position is the position where the first gear 22 is located when the sliding mechanism 20 and the unfolding mechanism 30 are moved into the designated position of the first bracket 10, and the second preset position is the position where the first gear 22 is located when the sliding mechanism 20 and the unfolding mechanism 30 are moved out of the first bracket 10 and the unfolding mechanism 30 can unfold or fold the foldable module 70.

[0130] In some embodiments, the folding and retracting device further includes a control system, which is electrically connected to the first detection element 61 and the third motor respectively, and the comprehensive control is realized by the control system.

[0131] In some embodiments, the folding and retracting device further includes a second bracket 40 and a rotation driving mechanism 50. The second bracket 40 is hinged to one end of the first bracket 10 close to the foldable module 70; the rotation driving mechanism 50 is connected to the second bracket 40 and the first bracket 10 respectively, and the rotation driving mechanism 50 drives the second bracket 40 and the first bracket 10 to rotate relative to each other to adjust the angle of the foldable module 70. In the above structure of the embodiment of the present application, the setting of the second bracket 40 and the rotation driving mechanism 50 can adjust the angle of the foldable module 70, so that the foldable module 70 is in a more convenient angle for the occupant to use.

[0132] In some embodiments, the second bracket 40 includes an arc portion 41. The arc portion 41 is provided at one end of the first bracket 10 away from the foldable module 70. The arc portion 41 takes the hinge position of the second bracket 40 and the first bracket 10 as the center of the circle. A second external tooth 42 is provided on the surface of the arc portion 41 facing the center of the circle; the rotation driving mechanism 50 includes a second gear 51. The second gear 51 is rotatably connected to the first bracket 10 and meshes with the second external tooth 42. The relative movement of the second gear 51 with respect to the second external tooth 42 causes the first bracket 10 and the second bracket 40 to rotate relative to each other.

[0133] In the embodiment of the present application, in the moving direction of the sliding mechanism 20, one end of the first bracket 10 is hinged to the second bracket 40, and the other end of the first bracket 10 is close to the arc portion 41 and is connected to the arc portion 41 through the second gear 51 and the second external tooth 42. When the second gear 51 moves relative to the second external tooth 42, the first bracket 10 and the second bracket 40 will rotate relative to each other, and the first bracket 10 drives the foldable module 70 to rotate to adjust the angle of the foldable module 70.

[0134] The arc portion 41 is equivalent to a rack structure, and the meshing of the second gear 51 and the second external tooth 42 is also a gear-rack meshing transmission, which also has the advantages of long service life, stable operation, and high reliability; and has a small sliding, which can reduce the transmission loss. In addition, the transmission is stable and has high precision, and can achieve precise motion control.

[0135] In some embodiments, the second bracket 40 includes an arc portion, which can effectively transfer the input power to the output end to achieve efficient power transmission; an arc portion 41 and two third connecting portions 43 form an arc structure. A first mounting hole 44 is provided at the connection of the two third connecting portions 43. A second connecting portion 14 is provided on one side of a pair of rack portions 11 away from the first connecting portion 13, and a first shaft portion 141 is provided on the second connecting portion 14. The first shaft portion 141 is assembled in the first mounting hole 44 to achieve the hinge connection between the first bracket 10 and the second bracket 40.

[0136] It is understandable that the hinges between other components of the present application may also use an assembly structure of a shaft and a hole, and the embodiments of the present application do not specifically limit this.

[0137] In some embodiments, two second gears 51 are provided. In the rotation direction B of the first bracket 10 , the two second gears 51 are symmetrically arranged, and the two second gears 51 are respectively meshed with the second outer teeth 42 .

[0138] In the rotation direction of the first bracket 10 , the first bracket 10 has a certain thickness, so two second gears 51 are provided on the first bracket 10 , and the two second gears 51 are respectively engaged with the second outer teeth 42 , which can improve the relative rotation stability of the first bracket 10 and the second bracket 40 .

[0139] Reference Figure 3 As shown, two second gears 51 are disposed at two ends of the first bracket 10 in the rotation direction thereof.

[0140] In some embodiments, the rotation drive mechanism 50 further includes a fourth motor, which is fixedly connected to the first bracket 10 and is in transmission connection with the second gear 51. The fourth motor drives the second gear 51 to rotate so that the first bracket 10 and the second bracket 40 rotate relative to each other. In the above structure of the embodiment of the present application, the fourth motor is used to drive the second gear 51 to rotate so as to achieve relative movement of the second gear 51 and the second outer tooth 42, which has the advantages of simple and stable structure.

[0141] In some embodiments, the folding and contracting device also includes two second detection elements 62 arranged on the second bracket 40. In the rotation direction of the first bracket 10, each second detection element 62 corresponds to an end of the arc portion 41; the fourth motor is electrically connected to the second detection element 62, and the fourth motor stops working when the second detection element 62 detects the second gear 51.

[0142] In the embodiment of the present application, the fourth motor stops working when the second detection element 62 detects the second gear 51. At this time, the second gear 51 moves to the end of the arc portion 41. This can avoid problems caused by excessive movement of the second gear 51 and has the advantage of simple control.

[0143] In some embodiments, the control system is electrically connected to the second detection element 62 and the fourth motor respectively, and the comprehensive control is realized by the control system.

[0144] In some embodiments, the folding and retracting device further includes a third detection element 63 for obtaining the sitting posture or movement state of the occupant; the fourth motor is electrically connected to the third detection element 63, and the fourth motor acts according to the sitting posture or movement state of the occupant obtained by the third detection element 63, and adjusts the angle of the foldable module 70 through the first bracket 10. In this way, the angle of the foldable module 70 is adapted to the use of the occupant, improving the satisfaction of the occupant.

[0145] When the folding and retracting device of the embodiment of the present application is in use, when the unfolding mechanism 30 and the foldable module 70 are moved out of the first bracket 10, the unfolding mechanism 30 is located outside the first bracket 10. The first motor drives the first lead screw 321 to rotate. When the first lead screw 321 rotates, the first moving member 311 moves on the first module 72. At the same time, the second motor drives the second lead screw 331 to rotate. When the second lead screw 331 rotates, the second moving member 312 moves on the second module 73. When the first moving member 311 and the second moving member 312 move towards the folding part 71 at the same time, the first module 72 and the second module 73 are folded; when the first moving member 311 and the second moving member 312 move away from the folding part 71 at the same time, the first module 72 and the second module 73 are unfolded. In this way, the first module 72 and the second module 73 can be folded or unfolded according to the use requirements. After the foldable module 70 is unfolded, the use requirements of the occupant for the foldable module 70 are met.

[0146] When the unfolding mechanism 30 and the foldable module 70 are moved out of the first bracket 10 and the first module 72 and the second module 73 are folded, when the foldable module 70 needs to be stored. The third motor drives the first gear 22 to rotate. The first gear 22 moves relative to the first external tooth 12, and the sliding block 21 drives the unfolding mechanism 30 and the foldable module 70 to move into the first bracket 10 at the same time until the first detection element 61 away from the foldable module 70 detects the first gear 22, and the third motor stops working, and the unfolding mechanism 30 and the foldable module 70 move into the first bracket 10 to realize storage.

[0147] The unfolding mechanism 30 and the foldable module 70 are stored in the first bracket 10. When the foldable module 70 needs to be unfolded, the third motor drives the first gear 22 to rotate. The first gear 22 moves relative to the first external teeth 12, and the sliding block 21 simultaneously drives the unfolding mechanism 30 and the foldable module 70 to move out of the first bracket 10 until the first detection element 61 near the foldable module 70 detects the first gear 22, at which point the third motor stops working. The unfolding mechanism 30 and the foldable module 70 move out of the first bracket 10. Then, the unfolding mechanism 30 unfolds the foldable module 70 in the above-mentioned manner.

[0148] When the foldable module 70 needs to be adjusted during unfolding, the fourth motor operates according to the sitting posture or movement state of the occupant obtained by the third detection element 63. The fourth motor drives the second gear 51 to move relative to the second external teeth 42, causing the first bracket 10 and the second bracket 40 to rotate relative to each other until the foldable module 70 is adjusted to the desired angle. Among them, when the second detection element 62 detects the second gear 51, the fourth motor stops working. At this time, the angle of the foldable module 70 has been adjusted to the maximum value and cannot be adjusted further.

[0149] The folding and retracting device of the embodiment of the present application can achieve the folding, unfolding, storage, and angle adjustment of the foldable module 70, meet various control requirements, and has the advantages of simple structure and control and precise movement.

[0150] Refer to Figures 7 to 13 As shown, the embodiment of the present application provides a seat 80. The seat 80 is provided with an installation cavity 81; the seat 80 includes the folding and retracting device as described above. The folding and retracting device is disposed in the installation cavity 81, and the folding and retracting device includes a second bracket 40. The second bracket 40 is connected to the cavity wall of the installation cavity 81. In this way, the foldable module 70 can be completely received in the installation cavity 81, the appearance of the seat 80 can be kept intact without being affected, and the safety factor for rear occupants can be improved.

[0151] Among them, the image display module is the foldable module 70.

[0152] In some embodiments, the seat 80 is provided with an opening that communicates with the installation cavity 81; the seat 80 further includes a cover driving assembly and a cover plate 90. The cover driving assembly and the cover plate 90 are respectively disposed in the installation cavity 81. The cover driving assembly is respectively connected to the seat 80 and the cover plate 90, and the cover driving assembly is adapted to drive the cover plate 90 to reciprocate to open or close the opening. In this way, while not affecting the unfolding of the image display module by the folding and retracting device, the cover plate 90 can keep the appearance of the seat 80 intact and play a role in protecting the image display module and the folding and retracting device.

[0153] In some embodiments, a second mounting hole 82 is further provided on the seat 80. The second mounting hole 82 is located on the upper side of the opening, and a third detection element 63 is installed in the second mounting hole 82.

[0154] In some embodiments, the image display module is provided with a folding portion 71; the cover driving assembly includes two electric push rods 91. In the extending direction of the folding portion 71, each electric push rod 91 is connected to an end of the cover plate 90. In the above structure of the embodiment of the present application, the cover plate 90 is reciprocated by the electric push rod 91 to cover and open the opening, which has the advantages of simple structure and simple control. The setting of the two electric push rods 91 further increases the movement stability of the cover plate 90.

[0155] The seat of the embodiment of the present application is as Figure 7 shown, which is a schematic structural diagram of a seat 80. An installation space for placing an image display module, a folding and retracting device, and a third detection element 63 is designed on the seat 80.

[0156] Referring to Figure 8 shown, which is a schematic diagram of the folded and stored state of the image display module. From the outside view of the seat 80, the image display module has been completely hidden in the seat 80, which can maintain the integrity of the appearance of the seat 80; in addition, this design can avoid occupying the activity space of the rear row occupants and maintain the integrity and beauty of the seat 80.

[0157] Referring to Figure 9 shown, which is a schematic diagram of the image display module in the unfolded state. In the unfolded state of the image display module, the first motor and the second motor can be self-locked, so that the first lead screw 321 and the second lead screw 331 are self-locked, and the image display module can maintain the unfolded state. In this state, it can be firmly fixed to the seat 80. The image display module can be angle-adjusted through the third detection element 63, the fourth motor, the second gear 51, and the arc portion 41 to adapt to the viewing state of the occupant and provide the best use experience for the rear row occupants.

[0158] During use, the third detection element 63 behind the seat 80 works to monitor the sitting posture or movement state of the rear row occupants, and feeds back information such as the sitting posture of the occupants to the controller. The control system controls the angle of the image display module in real time to provide the best viewing experience for the occupants. As Figures 11 to 13 shown, which is a schematic diagram of the image display module at three angles. The control system can also remember the common angle of the occupants, and automatically adjust to this angle when the image display module is unfolded next time.

[0159] The inventor found that in a vehicle, the rear headrest screen is fixedly installed behind the front seat through a fixed bracket, and the rear headrest screen floats above the seat back as a whole; from the outside, it always protrudes from the seat back, which is not aesthetically pleasing, and it occupies the interior space of the vehicle and the sitting and moving space of the rear passengers. The rear passengers are prone to hitting the rear headrest screen and causing injuries, posing a potential safety hazard to the passengers. The rear headrest screen can also be separated from the whole vehicle. When in use, the rear headrest screen can be hung behind the seat, and taken down when not in use. However, in this solution, on the one hand, the rear headrest screen is completely physically isolated from the whole vehicle, and data transmission needs to adopt wireless and other methods, resulting in a certain delay in the operation of the vehicle intelligent control system; on the other hand, it is necessary to manually install and store the rear headrest screen, which is not convenient for operation.

[0160] Referring to Figures 1 to 13 As shown, the embodiment of the present application also provides a vehicle, which can solve the above problems by setting the above folding and retracting device.

[0161] The vehicle includes an image display module and the folding and retracting device as described above; the image display module is a foldable module 70, and the sliding mechanism 20 and the unfolding mechanism 30 of the folding and retracting device are respectively connected to the image display module; alternatively, the vehicle includes the seat as described above.

[0162] In the vehicle of the embodiment of the present application, on the basis that the image display module is foldable, the folding and retracting device automatically folds and retracts and automatically unfolds the image display module. With full-automatic control, it can save the space of the rear passengers; moreover, after the image display module is unfolded, it can also obtain the sitting posture or movement state of the passengers through the third detection element 63, and adjust the angle of the image display module in real time to provide the best viewing angle, improving the use experience of the passengers and the intelligent level of the whole vehicle. The retraction of the image display module can also completely keep the appearance of the vehicle interior unaffected, improving the safety factor for the passengers.

[0163] Among them, the image display module can be a rear headrest screen.

[0164] The foldable and retractable function of the image display module also makes the whole vehicle more convenient for application scenarios in the camping mode, that is, after the image display module is folded and retracted, the seat 80 can be laid down to form a complete plane, facilitating the function of the passenger to sleep in the car for camping.

[0165] When the vehicle is in use, the corresponding control method can be set according to the use requirements. The embodiment of the present application does not make specific limitations on the control method, as long as the use requirements are met. For example, the control method of a specific embodiment is as follows:

[0166] 1. When the control system receives the passenger opening instruction, the control system controls the electric push rod 91 to act. After the cover plate 90 moves upward to open the opening, the electric push rod 91 is self-locked (the electric push rod 91 is an electric push rod with a self-locking function).

[0167] 2. The control system controls the operation of the third motor. The third motor drives the first gear 22 to rotate. The slider 21 drives the deployment mechanism 30 and the image display module to move. The image display module is pushed out of the seat 80. When the first detection element 61 detects the first gear 22, the third motor stops working and locks itself, and the slider 21 is fixed.

[0168] 3. The control system controls the operation of the first motor and the second motor. The first motor drives the first lead screw 321 to rotate, and the second motor drives the second lead screw 331 to rotate. The first moving member 311 and the second moving member 312 move away from the folding portion 71 at the same time, so that the image display module is deployed. After the image display module is deployed, the first motor and the second motor lock themselves, and the image display module remains in the deployed state.

[0169] 4. The control system automatically adjusts the release control instruction according to the occupant's command input or the third detection element 63 according to the occupant's sitting posture or movement state. The control system controls the fourth motor to work. The fourth motor drives the second gear 51 to move relative to the second external teeth 42, so that the first bracket 10 and the second bracket 40 rotate relative to each other until the foldable module 70 is adjusted to the required angle.

[0170] 5. Abnormal handling: In dangerous situations such as when the occupant does not use the image display module in the rear row for a long time or the vehicle encounters a strong bumpy road condition, for the safety of the image display module and the occupant, the control system will issue a closing instruction to fold and retract the image display module into the seat 80, improving the safety of the whole vehicle.

[0171] 6. Occupant preference memory: When the image display module is turned on again, it automatically moves to the occupant-preferred angle, etc.

[0172] The embodiment of the present application also provides an aircraft. The aircraft includes an image display module and a folding and retracting device as described above; the image display module is the foldable module 70, and the sliding mechanism 20 and the deployment mechanism 30 of the folding and retracting device are respectively connected to the image display module; or, the aircraft includes a seat as described above.

[0173] In the embodiment of the present application, the folding and retracting device, the seat, the vehicle, and the aircraft can be referred to each other, and have the same or similar beneficial effects as any one of the foregoing folding and retracting devices. To avoid repetition, it will not be described in detail here.

[0174] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0175] Each embodiment in this specification is described in a related manner. For the same or similar parts among the embodiments, reference can be made to each other, and the key point of each embodiment is to illustrate the differences from other embodiments.

[0176] The above is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A folding and contracting device for folding and unfolding a foldable module (70), characterized in that, The folding and retracting device includes a first bracket (10); a sliding mechanism (20) slidably disposed on the first bracket (10), and the sliding mechanism (20) is connected to the foldable module (70); a deploying mechanism (30) respectively connected to the sliding mechanism (20) and the foldable module (70), and the deploying mechanism (30) and the foldable module (70) are adapted to slide along with the sliding mechanism (20) to move out of or into the first bracket (10); When the foldable module (70) moves out of the first bracket (10), the deploying mechanism (30) can deploy the foldable module (70).

2. The folding and shrinking device according to claim 1, wherein The foldable module (70) is provided with a folding part (71), a first module (72) and a second module (73), and the folding part (71) is located between the first module (72) and the second module (73); the sliding mechanism (20) is respectively hinged to the first module (72) and the second module (73); and the deploying mechanism (30) includes a deploying assembly respectively connected to the first module (72) and the second module (73), and the deploying assembly causes the first module (72) and the second module (73) to rotate around the folding part (71) to be folded or deployed.

3. The folding and retracting device according to claim 2, wherein, The deploying assembly includes a first moving member (311) and a second moving member (312), the first moving member (311) is movably disposed on the first module (72), the second moving member (312) is movably disposed on the second module (73), and the first moving member (311) and the second moving member (312) are adapted to move towards the folding part (71) simultaneously or move away from the folding part (71) simultaneously; a first connecting rod (313) and a second connecting rod (314), a first end of the first connecting rod (313) and a first end of the second connecting rod (314) are respectively hinged to the sliding mechanism (20), and in the moving direction of the sliding mechanism (20), the hinged positions of the first connecting rod (313) and the second connecting rod (314) with the sliding mechanism (20) are away from the foldable module (70); a second end of the first connecting rod (313) is hinged to the first moving member (311), and a second end of the second connecting rod (314) is hinged to the second moving member (312); When the first moving member (311) and the second moving member (312) move towards the folding part (71) simultaneously, the first module (72) and the second module (73) are folded; when the first moving member (311) and the second moving member (312) move away from the folding part (71) simultaneously, the first module (72) and the second module (73) are deployed.

4. The folding and shrinking device according to claim 3, wherein The deploying mechanism (30) further includes The first unfolding drive assembly (32) is respectively connected to the first moving member (311) and the first module (72), and the first unfolding drive assembly (32) drives the first moving member (311) to reciprocate; The second unfolding drive assembly (33) is respectively connected to the second moving member (312) and the second module (73), and the second unfolding drive assembly (33) drives the second moving member (312) to reciprocate.

5. The folding and retracting device according to claim 4, wherein The first unfolding drive assembly (32) includes a first lead screw (321) and a first motor. The first lead screw (321) is respectively connected to the first motor and the first moving member (311), and the first motor drives the first lead screw (321) to rotate to make the first moving member (311) reciprocate; The second unfolding drive assembly (33) includes a second lead screw (331) and a second motor. The second lead screw (331) is respectively connected to the second motor and the second moving member (312), and the second motor drives the second lead screw (331) to rotate to make the second moving member (312) reciprocate.

6. The folding and retracting device according to claim 5, wherein The first unfolding drive assembly (32) further includes a first support base (322). The first support base (322) is respectively connected to the first lead screw (321), the first motor, and the first module (72). The first support base (322) is also hinged to the sliding mechanism (20) to hinge the sliding mechanism (20) to the first module (72); The second unfolding drive assembly (33) further includes a second support base (332). The second support base (332) is respectively connected to the second lead screw (331), the second motor, and the second module (73). The second support base (332) is also hinged to the sliding mechanism (20) to hinge the sliding mechanism (20) to the second module (73).

7. The folding and retracting device according to any one of claims 3-6, wherein The first module (72) is provided with a first guiding groove (721). The first guiding groove (721) is recessed from the end surface of the first module (72) in the extending direction of the folding portion (71) into the first module (72), and the first moving member (311) is adapted to be arranged in the first guiding groove (721); The second module (73) is provided with a second guiding groove (731). The second guiding groove (731) is recessed from the end surface of the second module (73) in the extending direction of the folding portion (71) into the second module (73), and the second moving member (312) is adapted to be arranged in the second guiding groove (731).

8. The folding and retracting device according to claim 1, wherein, The sliding mechanism (20) includes A sliding block (21), which is slidably connected to the first bracket (10). In the moving direction of the sliding mechanism (20), one end of the sliding block (21) is hinged to the foldable module (70); A sliding drive mechanism is respectively connected to the sliding block (21) and the first bracket (10), and the sliding drive mechanism is adapted to drive the sliding block (21) to reciprocate on the first bracket (10).

9. The folding and shrinking device according to claim 8, wherein the first bracket (10) includes a rack portion (11), and the rack portion (11) is provided with first external teeth (12); and the sliding drive mechanism includes a first gear (22), the first gear (22) is rotatably connected to the sliding block (21), and meshes with the first external teeth (12) to move the sliding block (21) on the first bracket (10) when the first gear (22) and the first external teeth (12) move relative to each other.

10. The folding and shrinking device according to claim 9, wherein, The foldable module (70) is provided with a folding portion (71); the first bracket (10) includes a first connecting portion (13) and two pairs of the rack portions (11). In the extending direction of the folding portion (71), one end of the first connecting portion (13) is connected to one pair of the rack portions (11), and the other end is connected to the other pair of the rack portions (11); There are two sliding mechanisms (20) and two unfolding mechanisms (30) respectively, and each sliding mechanism (20) is respectively connected to one unfolding mechanism (30) and one pair of the rack portions (11).

11. The folding and retracting device according to claim 10, wherein, In a direction perpendicular to the extending direction of the folding portion (71) and the moving direction of the sliding mechanism (20), each pair of the rack portions (11) is spaced and symmetrically arranged, and one sliding block (21) is arranged between each pair of the rack portions (11).

12. The folding and retracting device according to claim 11, wherein, There is one or at least two first gears (22), and at least two first gears (22) are spaced along the moving direction of the sliding mechanism (20); The first gear (22) is arranged between each pair of the rack portions (11), and the first gear (22) meshes with the two rack portions (11) respectively.

13. The folding and shrinking device according to claim 11, characterized in that, There are one pair or at least two pairs of first gears (22), at least two pairs of first gears (22) are spaced along the moving direction of the sliding mechanism (20), and each pair of first gears (22) is spaced in a direction perpendicular to the extending direction of the folding portion (71) and the moving direction of the sliding mechanism (20); Each first gear (22) in each pair of first gears (22) meshes with a corresponding one of the rack portions (11).

14. The folding and retracting device according to claim 11, wherein, The unfolding assembly of the unfolding mechanism (30) includes a first connecting rod (313) and a second connecting rod (314); One end of the sliding block (21) close to the first connecting portion (13) is rotatably connected to the first gear (22), the other end of the sliding block (21) away from the first connecting portion (13) is hinged to the foldable module (70), and one end of the first connecting rod (313) and one end of the second connecting rod (314) are respectively hinged to a side of the middle of the sliding block (21) close to the first gear (22).

15. The folding and shrinking device according to claim 14, wherein A guiding slope surface (111) is provided at an end of the rack portion (11) away from the first connecting portion (13); in each pair of the rack portions (11), the guiding slope surface (111) of one of the rack portions (11) and the guiding slope surface (111) of the other rack portion (11) are mirror images and are arranged in an outward-expanding shape. When the foldable module (70) is unfolded, the guiding slope surface (111) of one of the rack portions (11) limits one of the first connecting rod (313) and the second connecting rod (314), and the guiding slope surface (111) of the other rack portion (11) limits the other of the first connecting rod (313) and the second connecting rod (314).

16. The folding and shrinking device according to claim 10, wherein, When the foldable module (70) is moved into the first bracket (10), at least a part of the foldable module (70) is located within the space surrounded by the first bracket (10).

17. The folding and retracting device according to claim 9, wherein, The sliding driving mechanism further includes a third motor, which is fixedly connected to the sliding block (21) and is in transmission connection with the first gear (22). The third motor drives the first gear (22) to rotate so that the first gear (22) and the first external teeth (12) move relative to each other.

18. The folding and retracting device according to claim 17, characterized in that, The folding and contracting device further includes two first detection elements (61) provided on the first bracket (10). In the moving direction of the sliding mechanism (20), each first detection element (61) corresponds to an end of the rack portion (11); the third motor is electrically connected to the first detection element (61), and the third motor stops working when the first detection element (61) detects the first gear (22).

19. The folding and shrinking device according to claim 9, characterized in that, A chute is provided on the rack portion (11), and the chute extends along the moving direction of the sliding mechanism (20); a part of the sliding block (21) is arranged in the chute.

20. The folding and retracting device according to claim 1, wherein, The folding and contracting device further includes, a second bracket (40), which is hinged to an end of the first bracket (10) close to the foldable module (70); a rotation driving mechanism (50), which is respectively connected to the second bracket (40) and the first bracket (10). The rotation driving mechanism (50) drives the second bracket (40) and the first bracket (10) to rotate relative to each other to adjust the angle of the foldable module (70).

21. The folding and retracting device according to claim 20, wherein, The second bracket (40) includes an arc portion (41), and the arc portion (41) is arranged at an end of the first bracket (10) away from the foldable module (70). The arc portion (41) takes the hinged position of the second bracket (40) and the first bracket (10) as the center of the circle. A second external tooth (42) is provided on a surface of the arc portion (41) facing the center of the circle; The rotation driving mechanism (50) includes a second gear (51). The second gear (51) is rotatably connected to the first bracket (10) and meshes with the second external teeth (42). The relative movement of the second gear (51) with respect to the second external teeth (42) causes the first bracket (10) and the second bracket (40) to rotate relative to each other.

22. The folding and shrinking device according to claim 21, wherein There are two second gears (51). In the rotation direction of the first bracket (10), the two second gears (51) are symmetrically arranged, and the two second gears (51) respectively mesh with the second external teeth (42).

23. The folding and shrinking device according to claim 21, wherein, The rotation driving mechanism (50) further includes a fourth motor. The fourth motor is fixedly connected to the first bracket (10) and is in transmission connection with the second gear (51). The fourth motor drives the second gear (51) to rotate, causing the first bracket (10) and the second bracket (40) to rotate relative to each other.

24. The folding and retracting device according to claim 23, wherein The folding and retracting device further includes two second detection elements (62) provided on the second bracket (40). In the rotation direction of the first bracket (10), each second detection element (62) corresponds to one end of the arc portion (41). The fourth motor is electrically connected to the second detection element (62), and the fourth motor stops working when the second detection element (62) detects the second gear (51).

25. The folding and retracting device according to claim 24, wherein The folding and retracting device further includes a third detection element (63) for obtaining the sitting posture or movement state of the occupant. The fourth motor is electrically connected to the third detection element (63). The fourth motor acts according to the sitting posture or movement state of the occupant obtained by the third detection element (63), and adjusts the angle of the foldable module (70) through the first bracket (10).

26. A seat, characterized in that, The seat (80) is provided with an installation cavity (81). The seat (80) includes the folding and retracting device according to any one of claims 1-25. The folding and retracting device is arranged in the installation cavity (81). The folding and retracting device includes a second bracket (40), and the second bracket (40) is connected to the cavity wall of the installation cavity (81).

27. The seat according to claim 26, wherein, The seat (80) is provided with an opening that communicates with the installation cavity (81). The seat (80) further includes a cover driving assembly and a cover plate (90), which are respectively arranged in the installation cavity (81). The cover driving assembly is respectively connected to the seat (80) and the cover plate (90). The cover driving assembly is adapted to drive the cover plate (90) to reciprocate to open or close the opening.

28. The seat according to claim 27, characterized in that, The foldable module (70) is provided with a folding portion (71). The cover driving assembly includes two electric push rods (91). In the extending direction of the folding portion (71), each electric push rod (91) is connected to one end of the cover plate (90).

29. A vehicle, characterized in that, The vehicle includes an image display module, and the image display module is the foldable module (70). The folding and retracting device according to any one of claims 1-25, wherein the sliding mechanism (20) and the deploying mechanism (30) of the folding and retracting device are respectively connected to the image display module; or, The vehicle includes the seat according to any one of claims 26-28.

30. An aircraft, characterized in that, The aircraft includes, An image display module, the image display module being a foldable module (70); The folding and retracting device according to any one of claims 1-25, wherein the sliding mechanism (20) and the deploying mechanism (30) of the folding and retracting device are respectively connected to the image display module; or, The aircraft includes the seat according to any one of claims 26-28.

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