Footrest device, seat and vehicle

Abstract

The application provides a foot supporting device, a seat and a vehicle. The foot supporting device comprises a supporting plate and a foot-arch massaging device. The foot-arch massaging device comprises a supporting part and a pressing part. The supporting part is provided with a cover surface, two ends of the cover surface are connected with the supporting plate, and the cover surface and the supporting plate jointly define a foot accommodating space. The pressing part is arranged on a side of the cover surface facing the accommodating space, and the pressing part is a movable part. The foot-arch massaging device can be accommodated on the foot-arch of the foot in the accommodating space through the movable pressing of the pressing part.

Description

Technical Field

[0001] This application relates to a footrest device, a seat, and a vehicle. Background Technology

[0002] Seating products, such as car seats, are equipped with footrests to provide support for the user's feet.

[0003] However, current footrest devices in car seats do not have a foot massage function, and there is a need for a footrest device that can provide foot massage to improve the user experience. Therefore, this application proposes a footrest device, a seat, and a vehicle to meet the above technical needs. Summary of the Invention

[0004] The first aspect of this application aims to provide a footrest device.

[0005] The second aspect of this application aims to provide a seat.

[0006] The purpose of the third aspect of this application is to provide a means of transportation.

[0007] According to the first aspect of this application, a foot support device includes: a support plate; a foot massage device, the foot massage device including a support portion and a pressing portion; wherein, the support portion has a cover surface, both ends of the cover surface are connected to the support plate, the cover surface and the support plate together define an accommodating space for the foot; the pressing portion is disposed on the side of the cover surface facing the accommodating space, the pressing portion is a movable member; the foot massage device can be accommodated on the instep of the accommodating space by the movable pressing of the pressing portion.

[0008] The footrest device described above can provide massage to the instep through the instep massage device, enhancing the user experience. When the user's foot is placed in the receiving space, the sole of the foot is supported by the support plate, and the instep is covered by the cover provided by the support part. The pressing part set on the cover part moves to abut and press the instep, and the support part supports the reaction force of the instep, thereby achieving the massage effect on the instep.

[0009] In one or more embodiments of the footrest device, the support portion includes a flexible band that provides an arcuate cover; the pressing portion includes a hollow body disposed on the side of the cover facing the accommodating space and capable of volume change by filling and discharging fluid.

[0010] The flexible band design, while covering the instep, allows the toes to extend from one side, accommodating different foot shapes and sizes to enhance versatility. The curved cover design conforms to the shape of the instep, ensuring proper pressure placement and massage effectiveness. When the hollow body is filled with fluid, it and the flexible band automatically adjust to the shape of the instep, applying even pressure and avoiding discomfort caused by excessive pressure in certain areas. The massage effect can be flexibly adjusted by regulating the filling and discharging process of the hollow body to meet different usage needs; for example, adjusting the time interval between filling and discharging adjusts the massage rhythm, and / or adjusting the amount of fluid filling and discharging adjusts the massage intensity. When the footrest is folded up, for example, when fitted against a seat back, the flexible band naturally folds and deforms, and the hollow body shrinks in volume by discharging fluid, saving space and facilitating storage.

[0011] In one or more embodiments of the footrest device, the hollow body is configured as an air bag; and / or, the support portion provides two covers; the two covers are distributed on both sides in the width direction for correspondingly covering the insteps of both feet; the hollow bodies disposed between the two covers are connected by an air passage; and / or, one side of the cover has a relatively large opening and the opposite side has a relatively small opening; and / or, the hollow body extends from one end of the cover connected to the support plate to the other end; and / or, a foot massage device is further provided on the support plate at a position corresponding to the cover.

[0012] In one or more embodiments of the footrest device, the support plate is adapted to be rotatably connected to the backrest of a seat; the footrest device further includes a flipping device, which includes a bracket, a guide member, a connecting rod, and a drive unit; wherein, the bracket is adapted to connect to the backrest and is provided with a guide rail; the guide member is movably connected to the guide rail; one end of the connecting rod is rotatably connected to the guide member, and the other end is rotatably connected to the support plate; the drive unit is disposed on the bracket and connected to the guide member for driving the guide member to move along the guide rail.

[0013] In one or more embodiments of the footrest device, the drive unit includes a motor and a lead screw and nut mechanism; the motor is disposed on the bracket and connected to the lead screw and nut mechanism for providing power to the lead screw and nut mechanism; the lead screw and nut mechanism is connected to the guide member for converting the rotational motion output by the motor into linear motion and transmitting it to the guide member to drive the guide member to move along the guide track.

[0014] In one or more embodiments of the footrest device, the bracket is provided with two guide rails; the two guide rails are distributed on both sides in the width direction and provide parallel and opposite strip-shaped through holes; the guide includes a crossbar passing through the strip-shaped through holes of the two guide rails; two connecting rods are distributed on both sides in the width direction and rotatably connect the two ends of the crossbar respectively.

[0015] A seat according to a second aspect of this application includes a backrest and a footrest as described in the first aspect; the footrest is disposed at the rear of the backrest for providing support for the feet of a user of a rear seat located at the rear of the seat.

[0016] In one or more embodiments of the seat, the support plate is rotatably connected to the backrest; the footrest device further includes a flipping device, which includes a bracket, a guide member, a connecting rod, and a drive unit; wherein, the bracket is connected to the backrest and is provided with a guide rail; the guide member is movably connected to the guide rail; one end of the connecting rod is rotatably connected to the guide member, and the other end is rotatably connected to the support plate; the drive unit is disposed on the bracket and connected to the guide member, for driving the guide member to move along the guide rail.

[0017] In one or more embodiments of the seat, the seat is configured with a motion state structure; the motion state structure is configured such that when the backrest is flipped relative to the seat cushion, the support plate automatically flips relative to the backrest.

[0018] A means of transport according to a third aspect of this application includes a seat as described in the second aspect. Attached Figure Description

[0019] The above and other features, properties, and advantages of this application will become more apparent from the following description taken in conjunction with the accompanying drawings and embodiments, in which the same reference numerals always denote the same features. It should be noted that these drawings are merely illustrative and are not drawn to scale, and should not be construed as limiting the scope of protection actually claimed by this application, wherein:

[0020] Figure 1 This is a schematic diagram of the structure of a vehicle according to one embodiment.

[0021] Figure 2 This is a structural schematic diagram of a seat according to one embodiment.

[0022] Figure 3 This is a schematic diagram of the structure of a footrest device according to one embodiment.

[0023] Figure 4 for Figure 3The diagram shows the hollow body of the footrest device in a deflated state.

[0024] Figure 5 for Figure 3 The diagram shows the hollow body of the footrest device in a fluid-filled state.

[0025] Figure 6 This is a structural schematic diagram of a seat according to one embodiment.

[0026] Figure 7 for Figure 6 Another structural schematic diagram of the seat shown.

[0027] Figure 8 for Figure 6 Another structural schematic diagram of the seat shown.

[0028] Figure 9 This is a schematic diagram of the structure of a footrest device according to one embodiment.

[0029] Figure 10 for Figure 9 Another schematic diagram of the footrest device shown.

[0030] Figure 11 This is a schematic diagram of the structure of a footrest device according to one embodiment.

[0031] Figure 12 for Figure 11 Another schematic diagram of the footrest device shown.

[0032] Figure 13 for Figure 11 Another schematic diagram of the footrest device shown.

[0033] Figure label:

[0034] 1. Means of transportation;

[0035] 10. Seat; 11. Backrest; 12. Seat cushion;

[0036] 100. Footrest device;

[0037] 110. Tray; 111. Connection position;

[0038] 120. Foot massager; 121. Support; 1211. Cover; 1212. Flexible band; 122. Pressing part; 1221. Hollow body; 1222. Inflation / depression device; 1223. Air tube; 123. Accommodation space;

[0039] 130. Tilting device; 131. Support; 1311. Guide rail; 1312. Strip-shaped through hole; 132. Guide component; 1321. Crossbar; 133. Connecting rod; 134. Drive unit; 1341. Motor; 1342. Screw and nut mechanism;

[0040] 140. Foot massage device. Detailed Implementation

[0041] Reference will now be made in detail to various embodiments of this application, examples of which are shown in the accompanying drawings and described below. Although this application will be described in conjunction with exemplary embodiments, it should be understood that this application is not intended to be limited to those exemplary embodiments. Rather, this application is intended to cover not only these exemplary embodiments, but also various alternatives, modifications, equivalents, and other embodiments that may be included within the spirit and scope of this application as defined by the appended claims.

[0042] This application uses specific terms to describe embodiments of the application. For example, "an embodiment" and / or "one embodiment" refers to a feature, structure, or characteristic associated with at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment" or "one embodiment" mentioned twice or more in different locations in this application does not necessarily refer to the same embodiment. Furthermore, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined. In the following description, the orientation or positional relationship indicated by terms such as "upper," "lower," "inner," "outer," "front," "rear," or other directional terms is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the device or component referred to must have a specific orientation, be constructed and / or implemented in a specific orientation, and therefore should not be construed as a limitation of the application. In this application, the terms "first," "second," etc., are only used for distinguishing descriptions and should not be construed as indicating or implying positional relationships or order of importance. In the following description, unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly; for example, they can refer to fixed connections or movable connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0043] It is understood that the footrest device and seat provided in this application are particularly suitable for automobiles, but can also be applied to other applicable occasions, such as rail trains, ships, aircraft and other means of transportation, as well as applicable fixed places, such as meeting rooms, auditoriums, cinemas, etc., as long as the footrest device disclosed in the embodiments of this application can be used, and is not limited thereto.

[0044] See Figures 1 to 5 The foot support device 100 shown includes a support plate 110 and a foot massage device 120. The support plate 110 supports the user's foot. The foot massage device 120 includes a support portion 121 and a pressing portion 122; wherein, the support portion 121 has a cover 1211; both ends of the cover 1211 are connected to the support plate 110, thereby defining a foot accommodating space 123 together with the support plate 110; the pressing portion 122 is disposed on the side of the cover 1211 facing the accommodating space 123, and the pressing portion 122 is a movable member; the foot massage device 120 can massage the instep by pressing the instep with the movement of the pressing portion 122. The instep referred to here is the upward-facing surface of the foot extending from the ankle to the base of the toes. The support portion 121 refers to a structure capable of supporting the reaction force of the instep during foot massage; the cover 1211 refers to a structure capable of covering at least a portion of the instep, providing a mounting position for the pressing portion 122; for example, the cover 1211 may be configured in a shape similar to the upper of a slipper (e.g., Figure 3 As shown), the cover 1211 can also cover the entire upward-facing instep, and is not limited thereto. The activity of the pressing part 122 described herein should be interpreted broadly, including not only narrow movement, such as the pressing part 122 providing translation or rotation, but also changes in shape, such as changes in the volume of the pressing part 122. In some embodiments, the pressing part 122 may be configured with a hollow body 1221, which undergoes volume changes (expansion and contraction) within the accommodating space 123 by filling and discharging fluid into the hollow body 1221, thereby applying pressure and massaging to the instep housed in the accommodating space 123; the pressing part 122 may also adopt other structures, such as driving the massage head to translate, rotate, or vibrate on the instep via an actuator, and is not limited thereto.

[0045] The footrest device 100 described above can provide massage to the instep through the instep massage device 120, enhancing the user experience. When the user's foot is placed in the receiving space 123, the sole of the foot is supported by the support plate 110, and the instep is covered by the cover 1211 provided by the support part 121. The pressing part 122 provided on the cover 1211 abuts against and presses the instep through movement, and the support part 121 supports the reaction force of the instep, thereby achieving the massage effect on the instep.

[0046] like Figures 3 to 5As shown, in some embodiments, the support portion 121 includes a flexible strip 1212, which provides an arcuate cover surface 1211. The flexible strip 1212, as described herein, refers to a strip-shaped structure that can deform under stress. When the foot is accommodated in the accommodating space 123, the flexible strip 1212 can form an arcuate cover surface 1211 covering the instep. Generally, the flexible strip 1212 is made of a flexible material, such as fabric, artificial leather, or leather, but is not limited thereto. The pressing portion 122 includes a hollow body 1221; the hollow body 1221 is disposed inside the cover surface 1211, i.e., on the side facing the accommodating space 123; and the hollow body can expand by filling with fluid and shrink by discharging fluid. Figure 4 , Figure 5 As shown, when the hollow body 1221 expands, it occupies more of the accommodating space 123, increasing the pressure on the instep; when it shrinks, it leaves more of the accommodating space 123 for the instep, reducing the pressure on the instep. Thus, by filling and discharging fluid in a specific manner through the hollow body 1221, such as at specific time intervals and / or the amount of fluid filling, massage of the instep can be achieved.

[0047] The design employs a flexible band 1212, allowing the toes to protrude from one side of the band 1212 while the cover 1211 covers the instep. This adaptability helps accommodate different foot shapes and sizes, enhancing versatility. The curved cover 1211 design conforms to the shape of the instep, ensuring proper pressure placement and effectiveness. When the hollow body 1221 is filled with fluid, both the hollow body 1221 and the flexible band 1212 automatically adjust to fit the shape of the instep, applying even pressure and preventing discomfort from excessive localized pressure. By adjusting the filling and discharging process of the hollow body 1221, the massage effect can be flexibly adjusted to meet different usage needs; for example, adjusting the time interval between filling and discharging can regulate the massage rhythm, and / or adjusting the amount of fluid filling and discharging can regulate the massage intensity. When the footrest device 100 is retracted, for example, when it is attached to the backrest 11, the flexible strip 1212 can fold and deform naturally, and the hollow body 1221 can shrink in volume by discharging fluid, thereby saving space and facilitating storage and arrangement.

[0048] like Figure 3As shown, in some embodiments, the hollow body 1221 can be configured as an air bag, with the fluid being a gas such as air. The air bag can be connected to the air passage of the inflation / deflation device 1222, for example, via an air pipe 1223, to achieve inflation / deflation. Generally, the inflation / deflation device 1222 may include a valve, an air source (e.g., an air pump), and a vacuum generator, but is not limited thereto; the valve enables switching between inflation and deflation air passages; when the hollow body 1221 (air bag) needs to be inflated to increase pressure, the inflation air passage is connected, and the air source delivers gas to the air bag; when the air bag needs to be deflated to reduce pressure, the deflation air passage is connected, and the vacuum generator discharges gas from the air bag. The components of the inflation / deflation device 1222 can also be distributed in different locations, and can be selected according to factors such as actual layout space, and are not limited thereto; for example, the air pump can be located on the backrest 11 and connected to the air bag via the air pipe 1223. It is understood that the hollow body 1221 can also adopt other structures, and the fluid filling it can also be other media, such as liquids, without limitation.

[0049] like Figure 3 As shown, in some embodiments, the flexible band 1212 provides a cover 1211 with a relatively large opening on one side and a relatively small opening on the opposite side; thus, the foot can be inserted from the side with the relatively large opening and the toes can be extended from the side with the relatively small opening, so that the cover 1211 better conforms to the shape of the instep.

[0050] like Figure 4 , Figure 5 As shown, in some embodiments, the hollow body 1221 extends from one end of the cover 1211 connected to the tray 110 to the other end, or covers the entire inner side of the cover 1211, thereby fully covering the instep during massage to enhance comfort.

[0051] like Figure 3 As shown, in some embodiments, the support portion 121 provides two covers 1211; the two covers 1211 are distributed on both sides in the width direction to cover the insteps of the feet respectively; the hollow bodies 1221 disposed between the two covers 1211 are connected by an air passage, for example by an air pipe; this design allows the hollow bodies 1221 on both sides to share the same fluid delivery device (e.g., inflation / deflation device 1222) to achieve fluid filling and discharge, which is beneficial for cost saving and weight reduction.

[0052] like Figure 13 As shown, in some embodiments, a foot massage device 140 is also provided on the tray 110 at a position corresponding to the cover 1211, for providing massage to the soles of the feet to enhance the user experience.

[0053] like Figures 6 to 13As shown, in some embodiments, the support plate 110 is adapted to be rotatably connected to the backrest 11 of the seat 10 at a connection position 111. The footrest device 100 also includes a flipping device 130, which includes a bracket 131, a guide 132, a connecting rod 133, and a drive unit 134. The bracket 131 is adapted to connect to the backrest 11 and is provided with a guide rail 1311. Figure 13 As shown, it can be understood that in some embodiments, the bracket 131 is fixed to the backrest, so the tray 110 can be connected to the backrest 11 by rotatably connecting the bracket 131 at the connection position 111, but this is not a limitation. The guide member 132 is movably connected to the guide rail 1311, that is, the guide member 132 and the guide rail 1311 cooperate to move on the trajectory defined by the guide rail 1311. The connecting rod 133 has one end rotatably connected to the guide member 132 and the other end rotatably connected to the tray 110. The drive unit 134 is disposed on the bracket 131, and its output end is connected to the guide member 132 for driving the guide member 132 to move along the guide rail 1311; generally, the drive unit 134 is equipped with a motor 1341 to provide power, but the drive unit 134 can also adopt other structures, such as being equipped with a pneumatic device or a hydraulic device to provide power, but this is not a limitation. The leg rest is automatically flipped and adjusted by the drive unit 134; furthermore, a controller connected to the drive unit can be installed at an appropriate location; this makes the flipping and adjustment of the leg rest simple, and in particular solves the problem that the footrest device 100 is inconvenient to access in some special situations, such as when the seat 10 is adjusted to a zero-gravity seat 10. When the drive unit 134 drives the guide member 132 to move along the guide rail 1311, the guide member 132, the connecting rod 133 and the support plate 110 are linked together, thereby causing the support plate 110 to flip relative to the bracket 131 and the backrest 11.

[0054] The design of the flipping device 130 described above allows the footrest device 100 to be installed on the backrest 11 of the seat 10, and it can be flipped to switch between the use position and the storage position to effectively utilize space. The design of the guide member 132 and the guide rail 1311 on the bracket 131 helps to improve the stability of the footrest 110 during flipping and also helps to improve the load-bearing capacity of the footrest 110. Compared with the traditional footrest device 100 located at the rear of the seat cushion 12, placing the footrest device 100 on the backrest 11 allows the footrest 110 to have a larger flipping stroke. In use, the footrest 110 can be flipped down to the height of overlapping with the seat cushion 12, thereby forming an appropriate angle between it and the cabin floor (the seat surface of the rear seat 10), allowing the user's feet to rest more naturally on the footrest 110, thus improving comfort. Placing the drive unit 134 on the backrest 11 also helps to make full use of the space of the backrest 11.

[0055] like Figures 6 to 8As shown, specifically, the footrest device 100 can be configured in a folded-down state, where the support plate 110 fits against the backrest 11 to save space; the footrest device 100 can also be configured in a usable state, where the support plate 110 can be flipped to reach a height position overlapping with the seat cushion 12, such as... Figure 8 As shown; the traditional footrest device 100 arranged on the seat cushion 12 has a small achievable tilting range due to its small distance from the cabin floor, or it is arranged parallel to the cabin floor. However, using a footrest device 100 arranged on the backrest 11 allows for a larger adjustable range of tilting angles to adapt to different usage needs. In some embodiments, the leg rest can also be approximately parallel to the cabin floor, for example, to form a single support surface by contacting the seat surface of the rear seat 10. Figure 7 As shown.

[0056] like Figures 9 to 13 As shown, in some embodiments, the drive unit 134 includes a motor 1341 and a lead screw and nut mechanism 1342. The motor 1341 is mounted on the bracket 131 and connected to the lead screw and nut mechanism 1342, providing power to the lead screw and nut mechanism 1342. The lead screw and nut mechanism 1342 is connected to the guide member 132, converting the rotational motion output by the motor 1341 into linear motion and transmitting it to the guide member 132, thereby driving the guide member 132 to move along the guide rail 1311. Specifically, the lead screw and nut mechanism 1342 includes a cooperating lead screw and nut, one of which is connected to the motor 1341 to receive the rotational motion provided by the motor 1341, and the other is connected to the guide member 132. Through the cooperation of the lead screw and nut, the rotational motion from the motor 1341 is converted into linear motion and transmitted to the guide member 132, thereby driving the guide member 132 to move along the guide rail 1311. The motor 1341 and the lead screw and nut mechanism 1342 can also be indirectly connected through a transmission component such as a speed reducer, and are not limited thereto. Compared to using the commonly used angle-adjusting motor 1341 in this field to achieve the flipping adjustment of the tray 110, which requires the angle-adjusting motor 1341 to be pivotally connected between the tray 110 and the backrest 11, the design of using the motor 1341 and the lead screw and nut mechanism 1342 makes the arrangement of the drive unit 134 more flexible and free, so as to effectively utilize the space.

[0057] like Figures 9 to 13As shown, in some embodiments, the bracket 131 is provided with two guide rails 1311; the two guide rails 1311 are distributed on both sides in the width direction and provide parallel and opposite strip-shaped through holes 1312; the guide member 132 includes a crossbar 1321, which passes through the strip-shaped through holes 1312 of the two guide rails 1311; two connecting rods 133 are distributed on both sides in the width direction and are rotatably connected to the two ends of the crossbar 1321 respectively. This design provides support for the pallet 110 through the structure of the bracket 131, crossbar 1321, and connecting rods 133 on both sides, thereby improving the load-bearing capacity; the crossbar 1321 and the strip-shaped through holes 1312 on both sides further improve the stability of movement and ensure synchronous movement on both sides. Specifically, each guide rail 1311 may also be provided with two or more strip-shaped through holes 1312 to further improve the load-bearing capacity and movement stability, without limitation.

[0058] like Figure 1 , Figure 2 as well as Figures 6 to 8 The seat 10 shown includes a backrest 11 and a footrest device 100; the footrest device 100 is disposed at the rear of the backrest 11 and is used to provide support for the feet of the user of the rear seat 10 located at the rear side of the seat 10.

[0059] like Figures 6 to 8 As shown, in some embodiments, the tray 110 is rotatably connected to the backrest 11; the footrest device 100 also includes a flipping device 130, which includes a bracket 131, a guide member 132, a connecting rod 133, and a drive unit 134; wherein, the bracket 131 is connected to the backrest 11 and is provided with a guide rail 1311; the guide member 132 is movably connected to the guide rail 1311; the connecting rod 133 is rotatably connected to the guide member 132 at one end and rotatably connected to the tray 110 at the other end; the drive unit 134 is disposed on the bracket 131 and connected to the guide member 132, for driving the guide member 132 to move along the guide rail 1311.

[0060] In some embodiments, the seat 10 is equipped with a motion state structure; the motion state structure is configured such that when the backrest 11 is flipped relative to the seat cushion 12, the tray 110 automatically flips relative to the backrest 11. This motion state structure design allows the seat cushion 12 and the tray 110 to be flipped simultaneously, thus simultaneously meeting the needs of the user of the seat 10 for the backrest 11, as well as the needs of the user of the rear seat 10 located behind the seat 10 for the footrest device 100, and preventing interference or collision between the footrest device 100 and the cabin floor when the backrest 11 is flipped backward.

[0061] like Figure 1 The vehicle 1 shown is, for example, a car, which includes seats 10.

[0062] In summary, the beneficial technical effects of this application include, but are not limited to, at least one of the following:

[0063] The footrest device described above can provide massage to the instep through the instep massage device, enhancing the user experience. When the user's foot is placed in the receiving space, the sole of the foot is supported by the support plate, and the instep is covered by the cover provided by the support part. The pressing part set on the cover part moves to abut and press the instep, and the support part supports the reaction force of the instep, thereby achieving the massage effect on the instep.

[0064] While this application discloses preferred embodiments as described above, it is not intended to limit the scope of this application. Any changes and modifications can be made by those skilled in the art without departing from the spirit and scope of this application. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application, without departing from the content of the technical solution of this application, fall within the protection scope defined by the claims of this application.

Claims

1. A footrest device (100), characterized in that, include: Pallet (110); A foot massage device (120) includes a support part (121) and a pressing part (122); wherein, The support part (121) is provided with a cover (1211), the two ends of the cover (1211) are connected to the tray (110), and the cover (1211) and the tray (110) together define the accommodating space (123) of the foot. The pressing part (122) is disposed on the side of the cover (1211) facing the accommodating space (123), and the pressing part (122) is a movable part; the foot massage device (120) can be accommodated on the instep of the accommodating space (123) by the movable pressing of the pressing part (122).

2. The footrest device (100) according to claim 1, characterized in that, The support portion (121) includes a flexible strip (1212) that provides an arcuate cover surface (1211); the pressing portion (122) includes a hollow body (1221); the hollow body (1221) is disposed on the side of the cover surface (1211) facing the accommodating space (123) and is capable of volume change by filling and discharging fluid.

3. The footrest device (100) according to claim 2, characterized in that: The hollow body (1221) is configured as an air bag; and / or, The flexible strip (1212) provides two covers (1211); the two covers (1211) are distributed on both sides in the width direction for correspondingly covering the insteps of both feet; the hollow bodies (1221) disposed between the two covers (1211) are connected by an air passage; and / or, The flexible strip (1212) has a relatively large opening on one side and a relatively small opening on the opposite side; and / or, The hollow body (1221) extends from one end of the cover (1211) connected to the tray (110) to the other end; and / or, A foot massage device (140) is also provided on the tray (110) at a position corresponding to the cover (1211).

4. The footrest device (100) according to claim 1, characterized in that, The tray (110) is adapted to be rotatably connected to the backrest (11) of the seat (10); the footrest device (100) further includes a flipping device (130), which includes a bracket (131), a guide (132), a connecting rod (133), and a drive unit (134); wherein, The bracket (131) is adapted to connect the backrest (11) and is provided with a guide rail (1311). The guide (132) is movably connected to the guide rail (1311). The connecting rod (133) is rotatably connected to the guide (132) at one end and rotatably connected to the support plate (110) at the other end. The drive unit (134) is disposed on the bracket (131) and connected to the guide member (132), and is used to drive the guide member (132) to move along the guide rail (1311).

5. The footrest device (100) according to claim 4, characterized in that, The drive unit (134) includes a motor (1341) and a lead screw and nut mechanism (1342); the motor (1341) is mounted on the bracket (131) and connected to the lead screw and nut mechanism (1342) to provide power to the lead screw and nut mechanism (1342); the lead screw and nut mechanism (1342) is connected to the guide member (132) to convert the rotational motion output by the motor (1341) into linear motion and transmit it to the guide member (132) to drive the guide member (132) to move along the guide rail (1311).

6. The footrest device (100) according to claim 4, characterized in that, The bracket (131) is provided with two guide rails (1311); the two guide rails (1311) are distributed on both sides in the width direction and provide parallel and opposite strip-shaped through holes (1312); the guide member (132) includes a crossbar (1321) which passes through the strip-shaped through holes (1312) of the two guide rails (1311); two connecting rods (133) are distributed on both sides in the width direction and are rotatably connected to the two ends of the crossbar (1321).

7. A seat (10), characterized in that, It includes a backrest (11) and a footrest device (100) as claimed in any one of claims 1 to 6; the footrest device (100) is disposed at the rear of the backrest (11) for providing support for the feet of the user of the rear seat (10) located behind the seat (10).

8. The seat (10) according to claim 7, characterized in that, The tray (110) is rotatably connected to the backrest (11); the footrest device (100) further includes a flipping device (130), which includes a bracket (131), a guide (132), a connecting rod (133), and a drive unit (134); wherein, the bracket (131) is connected to the backrest (11) and is provided with a guide rail (1311); the guide (132) is movably connected to the guide rail (1311); one end of the connecting rod (133) is rotatably connected to the guide (132), and the other end is rotatably connected to the tray (110); the drive unit (134) is disposed on the bracket (131) and connected to the guide (132), and is used to drive the guide (132) to move along the guide rail (1311).

9. The seat (10) according to claim 7, characterized in that, The seat (10) is equipped with a motion state structure; the motion state structure is configured such that when the backrest (11) is flipped relative to the cushion (12), the tray (110) automatically flips relative to the backrest (11).

10. A means of transportation (1), characterized in that, Includes the seat (10) as described in any one of claims 7 to 9.

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