A footrest assembly and a seat

Abstract

The application discloses a footboard assembly and a seat, and relates to the technical field of seats, in particular to a footboard assembly and a seat. The footboard assembly comprises a supporting plate, a driving mechanism and a supporting mechanism, the supporting plate is installed on the supporting mechanism; the driving mechanism comprises a driving piece and a moving rod, the driving piece is installed on the supporting plate, and the moving rod is drivingly connected to the driving end of the driving piece; the supporting mechanism comprises a guide rod and a supporting frame which are rotationally connected, and the guide rod and the moving rod are slidingly connected. When the footboard assembly is used, the supporting plate supports the feet of passengers, the supporting mechanism is used to reduce the deformation of the supporting plate caused by the load pressure of the feet of passengers, and the use reliability of the footboard assembly is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of seats, in particular to a footboard assembly and a seat. BACKGROUND

[0002] In a vehicle, in order to improve the comfort of passengers, a footboard is usually arranged at the rear end of the front row seat to support the feet of passengers in the rear row. For example, a car seat is equipped with a footboard at the rear of the seat for use by passengers in the rear row.

[0003] The footboard is usually mounted on the seat cushion or backrest framework, and the loading form of the footboard is reasonably designed to optimize the structure volume and improve the convenience of the seat. The inventors have found that in the prior art, the footboard is usually in a suspended state after being unfolded and relies on the connecting structure of the seat cushion or backrest framework for limiting support. When actually used by passengers in the rear row, the footboard cannot bear a large load and is prone to deformation, which reduces the use reliability of the footboard. SUMMARY

[0004] The technical problem to be solved or at least partially solved by the present application is that in the related art, the footboard cannot bear a large load and is prone to deformation, which reduces the use reliability of the footboard.

[0005] In a first aspect, the present application provides a footboard assembly adapted to be connected with a seat framework assembly, the footboard assembly comprising:

[0006] a supporting plate adapted to support the feet of passengers;

[0007] a driving mechanism comprising a driving member and a moving rod, the driving member being mounted on the supporting plate, and the moving rod being drivingly connected to the driving end of the driving member;

[0008] and a supporting mechanism, the supporting plate being mounted on the supporting mechanism; the supporting mechanism comprising a guide rod and a supporting frame in rotational connection, and the moving rod being slidingly connected to the guide rod;

[0009] Under the action of the driving member, the moving rod reciprocally slides along the guide direction of the guide rod to drive the rotation angle of the supporting end of the supporting frame to be adjusted, so that the supporting end rotates to approach or move away from the ground side.

[0010] The supporting mechanism further comprises a connecting rod, one end of the connecting rod being in rotational connection with the moving rod, and the other end of the connecting rod being in rotational connection with the supporting frame.

[0011] The supporting frame comprises a connecting body and a supporting body; the end portion of the supporting body away from the connecting body is arranged as the supporting end;

[0012] The connecting body and the guide rod are rotationally connected, and the connecting body and the supporting body are fixedly connected.

[0013] The connecting body and the guide rod are fixedly connected, and the connecting body and the supporting body are rotationally connected.

[0014] The guide rod and the connecting rod are respectively provided with two, and the connecting body is arranged between the two guide rods; the supporting body is provided with two, and the two supporting bodies are arranged at intervals, and the supporting body and the connecting rod are correspondingly connected.

[0015] The moving rod has a first position state and a second position state.

[0016] In the first position state, the moving rod is located at the initial driving position or the reset limit position of the driving member.

[0017] In the second position state, the moving rod is located at the stroke limit position or the reset initial position of the driving member.

[0018] When the moving rod is in the first position state, for the corresponding connecting rod and the supporting body, in a plane perpendicular to the rotation axes of the two, the obtuse angle formed by the projections of the length direction of the connecting rod and the extension direction of the supporting body on the plane is set to 175-177°, and the sharp end formed by the connecting rod and the supporting body is arranged towards the ground side.

[0019] The foot pedal assembly further comprises a supporting wheel, and the supporting mechanism further comprises a second adapter, the supporting wheel is sleeved on the second adapter, one end of the second adapter is rotationally connected with the connecting rod, the other end of the second adapter is rotationally connected with the supporting frame, and the supporting wheel is arranged between the connecting rod and the supporting frame; the supporting wheel and the second adapter are fixedly connected or rotationally connected.

[0020] The supporting plate comprises a detachably connected mounting cover and a connecting cover, the driving member is fixedly arranged in the mounting cover, the supporting mechanism is arranged in the connecting cover, and the connecting cover is provided with a avoiding groove suitable for accommodating the rotation of the supporting end of the supporting frame; and / or

[0021] The guide rod is provided with a guide groove, and the guide groove and the moving rod are slidingly arranged.

[0022] The driving mechanism further comprises a speed reducer and a transmission structure, the speed reducer is fixed in the supporting plate, the speed reducer is arranged at the output end of the driving member, the transmission structure comprises a transmission screw rod and a screw rod slider, the transmission screw rod is fixedly connected at the output end of the speed reducer, the screw rod slider is fixed on the moving rod, and the extension direction of the transmission screw rod is parallel to the guide direction of the guide groove; the transmission screw rod and the screw rod slider are in transmission connection to drive the moving rod to reciprocatingly slide; and / or

[0023] The driving mechanism further comprises a limiting sleeve, the limiting sleeve is installed at the end of the moving rod, and the limiting sleeve and the guide groove are in sliding arrangement.

[0024] In the second aspect, the application provides a seat, comprising:

[0025] A seat framework assembly adapted to be connected with a vehicle frame;

[0026] and a footboard assembly; the footboard assembly is reversibly installed on the seat framework assembly.

[0027] The seat framework assembly comprises a chair frame and a mounting assembly; the mounting assembly comprises a mounting seat, a mounting shaft and a locking member, the mounting seat is fixedly connected with the chair frame, the mounting shaft is rotationally arranged with the mounting seat, and the footboard assembly is fixedly connected with the mounting shaft; and the locking member is sleeved on the mounting shaft to lock and fix the footboard assembly on the mounting shaft.

[0028] The technical scheme provided by the application has the following advantages:

[0029] 1. The footboard assembly provided by the application drives the moving rod through the driving member, so that the moving rod reciprocatingly slides along the guide direction of the guide rod, the rotation angle of the supporting end of the supporting frame is adjusted in transmission, the supporting end is rotated to approach the ground side in use, contacts with the vehicle body structure, and supports the supporting plate, when the supporting plate supports the feet of the passenger, the supporting mechanism is used to reduce the deformation of the supporting plate caused by the load pressure of the feet of the passenger, and the use reliability of the footboard assembly is improved; or when the supporting plate needs to be retracted, the moving rod is driven by the driving member, the supporting end is rotated to move away from the ground side, and the contact with the vehicle body structure is broken, and the retraction process is completed.

[0030] 2. The footboard assembly provided by the application further comprises a connecting rod, one end of the connecting rod is rotationally connected with the moving rod, and the other end of the connecting rod is rotationally connected with the supporting frame. The power of the moving rod is transmitted through the connecting rod to drive the rotation of the supporting frame, so as to adjust the rotation angle of the supporting frame, and the supporting end is rotated to approach or move away from the ground side.

[0031] 3. The footboard assembly provided by the present application, the end portion of the support body away from the connecting body is configured as a support end of the support frame, the connecting body is used to contact with the guide rod, the guide rod is used to provide stable support for the support frame, and reliable rotation stroke of the support end relative to the guide rod is promoted.

[0032] 4. The footboard assembly provided by the present application, when the driving member drives the moving rod to slide, the connecting rod is used to transmit force to the support frame, in order to facilitate the support mechanism to deform in the desired direction, the obtuse angle formed by the length direction of the connecting rod and the extension direction of the support body in the projection on the plane perpendicular to the rotation axes of the two is set to 175-177°, and the unfolding capability of the support mechanism is improved.

[0033] 5. The footboard assembly provided by the present application, the driving member is loaded in the mounting cover, the support mechanism is accommodated in the connecting cover, the avoiding groove is arranged on the connecting cover, and the support end of the support frame is accommodated in the avoiding groove when the support frame is retracted, and the structure is optimized to facilitate space utilization.

[0034] 6. The footboard assembly provided by the present application, the driving member drives the lead screw slider to slide on the transmission lead screw to drive the moving rod to slide, the transmission form is stepless adjustment form, the sliding stroke of the moving rod can have different sliding lengths, so that the support frame can have different rotation angles when the moving rod drives the connecting rod and the support frame to move, the support capability of the footboard assembly is optimized.

[0035] 7. The seat provided by the present application, comprising a seat framework assembly and a footboard assembly. The seat framework assembly is adapted to be connected with a vehicle frame, and the footboard assembly is reversibly installed on the seat framework assembly. When the footboard assembly supports the feet of a passenger, the support mechanism in the footboard assembly is used to reduce the deformation of the support plate caused by the load pressure of the feet of the passenger, improve the use reliability of the footboard assembly, and facilitate to improve the convenience and safety of the seat. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the following specific embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0037] Figure 1 The structure schematic diagram of the footboard assembly in the seat provided in the embodiments of the present application is shown when the footboard assembly is folded and stored.

[0038] Figure 2Structure diagram of the seat in the embodiment of the present application in the unfolding and turning over state;

[0039] Figure 3 Connection diagram of the mounting assembly and the footboard assembly in the seat in the embodiment of the present application;

[0040] Figure 4 Structure diagram of the footboard assembly in the embodiment of the present application;

[0041] Figure 5 Connection diagram of the guide rod and the connecting rod in the footboard assembly in the embodiment of the present application;

[0042] Figure 6 Structure diagram of the guide rod in the footboard assembly in the embodiment of the present application;

[0043] Explanation of the reference signs:

[0044] 11-chair frame; 12-mounting assembly; 121-mounting seat; 122-mounting shaft; 123-locking member;

[0045] 21-supporting plate; 211-mounting cover; 212-connection cover;

[0046] 22-driving mechanism; 221-driving member; 222-reducer; 223-transmission screw; 224-moving rod; 225-limiting sleeve;

[0047] 23-supporting mechanism; 231-guide rod; 2311-guide groove; 2312-connection hole; 2313-assembly hole; 232-connecting rod; 233-supporting frame; 2331-connection body; 2332-supporting body; 234-first adapter; 235-second adapter; 236-third adapter;

[0048] 24-supporting wheel. DETAILED DESCRIPTION

[0049] The technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0050] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0051] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0052] In addition, the technical features involved in the different embodiments of the application described below can be combined with each other as long as there is no conflict between them.

[0053] Embodiment 1

[0054] The present embodiment provides a foot pedal assembly, which is suitable for being connected with a seat framework assembly. Specifically, the foot pedal assembly is reversibly arranged on the seat framework assembly of an external device.

[0055] Referring to Figures 1 to 4 , the foot pedal assembly comprises a supporting plate 21, a driving mechanism 22 and a supporting mechanism 23; the supporting plate 21 is installed on the supporting mechanism 23; the supporting plate 21 is suitable for supporting the feet of a passenger.

[0056] Referring to Figure 4 , the driving mechanism 22 comprises a driving member 221 and a moving rod 224, the driving member 221 is installed on the supporting plate 21, and the moving rod 224 is drivingly connected to the driving end of the driving member 221; the supporting mechanism 23 comprises a guide rod 231 and a supporting frame 233 which are rotatably connected, and the moving rod 224 is slidingly connected to the guide rod 231; under the action of the driving member 221, the moving rod 224 reciprocatingly slides along the guide direction of the guide rod 231 to drive the rotation angle of the supporting end of the supporting frame 233 to be adjusted, so that the supporting end rotates to approach or move away from the ground side.

[0057] The foot pedal assembly provided in this embodiment drives the moving rod 224 via the driving component 221, causing the moving rod 224 to slide back and forth along the guide direction of the guide rod 231. This drives the adjustment of the rotation angle of the support end of the support frame 233, so that the support end rotates closer to the ground side during use to contact the vehicle body structure and form support for the support plate 21. When the support plate 21 supports the passenger's foot, the support mechanism 23 reduces the deformation of the support plate 21 caused by the load pressure of the passenger's foot, improving the reliability of the foot pedal assembly. Alternatively, when it is necessary to retract the support plate 21, the driving component 221 drives the moving rod 224 to rotate the support end away from the ground side, thereby disengaging from the vehicle body structure and completing the retraction process.

[0058] See also Figure 4 The support mechanism 23 also includes a connecting rod 232, one end of which is rotatably connected to the moving rod 224, and the other end of which is rotatably connected to the support frame 233. The connecting rod 232 transmits power to the moving rod 224 to drive the rotation of the support frame 233, thereby adjusting the rotation angle of the support frame 233 and achieving the purpose of moving the support end closer to or away from the ground.

[0059] In this embodiment, see Figure 4 The support frame 233 includes a connecting body 2331 and a supporting body 2332; the end of the supporting body 2332 away from the connecting body 2331 is configured as a supporting end; specifically, the end of the supporting body 2332 away from the connecting body 2331 is configured as the supporting end of the support frame 233, the connecting body 2331 is used to contact the guide rod 231, and the guide rod 231 provides stable support for the support frame 233, promoting reliable rotation of the supporting end relative to the guide rod 231.

[0060] In some embodiments, the connecting body 2331 and the supporting body 2332 are respectively configured as rod structures; the guide rod 231 is configured as a plate rod structure, the length direction of the connecting body 2331 is perpendicular to the extension plane of the guide rod 231, and the extension direction of the supporting body 2332 is parallel to the extension plane of the guide rod 231.

[0061] In this embodiment, see Figure 4 The connecting body 2331 and the guide rod 231 are rotatably connected, while the connecting body 2331 and the supporting body 2332 are fixedly connected. The moving rod 224 drives the connecting rod 232, the supporting body 2332, and the connecting body 2331 to move. The support frame 233 as a whole and the guide rod 231 are rotatably configured. The support frame 233 has good overall consistency and high connection strength, which is beneficial to improving the movement accuracy of the support frame 233 in the support mechanism 23.

[0062] As a deformation, the connecting body 2331 and the guide rod 231 are fixedly connected, and the connecting body 2331 and the support body 2332 are rotatably connected. The support body 2332 and the connecting body 2331 are rotated by moving the rod 224 to drive the connecting rod 232 and the support body 2332 to move, and the support body 2332 at the transmission end of the driving member 221 is rotated. Compared with the driving member 221 driving the overall support frame 233, the driving member 221 can select a smaller driving force, and also can achieve the purpose of adjusting the support end to rotate to the desired angle.

[0063] In this embodiment, referring to Figure 4 , the guide rod 231 and the connecting rod 232 are provided with two respectively, and the connecting body 2331 is arranged between the two guide rods 231; the support body 2332 is provided with two, and the two support bodies 2332 are arranged at intervals, and the support body 2332 and the connecting rod 232 are correspondingly connected.

[0064] Among them, the moving rod 224 has a first position state and a second position state; referring to Figure 4 , in the first position state, the moving rod 224 is located at the initial driving position or the reset limit position of the driving member 221; in the second position state, the moving rod 224 is located at the stroke limit position or the reset initial position of the driving member 221. When the moving rod 224 is in the first position state, for the corresponding connecting rod 232 and the support body 2332, in the plane perpendicular to the rotation axis of the two, the obtuse angle formed by the projection of the length direction of the connecting rod 232 and the extension direction of the support body 2332 on the plane is set to 175°-177°, and the sharp end formed by the connecting rod 232 and the support body 2332 is arranged towards the ground side.

[0065] In this embodiment, in order to facilitate the deformation movement of the support mechanism 23 in the desired direction, when the moving rod 224 is in the first position state, the obtuse angle formed by the projection of the length direction of the connecting rod 232 and the extension direction of the support body 2332 on the plane perpendicular to the rotation axis of the two is set to 175°-177°, and the unfolding ability of the support mechanism 23 is improved.

[0066] As an embodiment, the support mechanism 23 further comprises a first adapter 234, referring to Figure 5 , the first adapter 234 and the moving rod 224 are fixedly arranged, the first adapter 234 and the connecting rod 232 are rotatably connected, and the power of the moving rod 224 is transmitted to the connecting rod 232 through the first adapter 234.

[0067] In this embodiment, the foot pedal assembly further comprises a support wheel 24, and the support mechanism 23 further comprises a second adapter 235, referring to Figure 5The support wheel 24 is sleeved on the second adapter 235, one end of the second adapter 235 is rotationally connected with the connecting rod 232, the other end of the second adapter 235 is rotationally connected with the support frame 233, and the support wheel 24 is arranged between the connecting rod 232 and the support frame 233. The support wheel 24 and the second adapter 235 are rotationally connected. The support wheel 24 is arranged as a support end of the support mechanism 23 which is in contact with the vehicle body structure after the support mechanism 23 is unfolded. The support wheel 24 reaches the vehicle body structure from one end of the connecting rod 232 and the support frame 233, thereby providing support for the supporting plate. The support wheel 24 is arranged as, but is not limited to, a rubber wheel or a plastic wheel. In other embodiments, the support wheel 24 and the second adapter 235 are fixedly connected.

[0068] As an embodiment, the support mechanism 23 further comprises a third adapter 236, as shown in Figure 5 and Figure 6 The third adapter 236 is used to connect the support frame 233 and the guide rod 231. The third adapter 236 is fixedly connected with the support frame 233, and is rotationally connected with the guide rod 231. When the support frame 233 rotates relative to the guide rod 231, the third adapter 236 rotates synchronously with the support frame 233. The end of the guide rod 231 is provided with a connecting hole 2312, and the connecting hole 2312 is connected with the third adapter 236.

[0069] As a variation, the end of the support body 2332 is not connected with the end of the connecting rod 232. The middle section of the connecting rod 232 and the support body 2332 is rotationally connected, and the second adapter 235 is arranged to pass through and rotationally connect the middle section of the connecting rod 232 and the support body 2332. When the moving rod 224 drives the connecting rod 232 and the support frame 233 to move, it is more conducive to expand the rotation stroke of the support end, and the design of the volume occupied by the transmission structure in the support mechanism 23 can be optimized, and the movement range of the support end can be reasonably improved.

[0070] As a variation, when the connecting body 2331 and the support body 2332 are fixedly arranged, and the connecting body 2331 and the guide rod 231 are rotationally arranged, the support body 2332 can be arranged at intervals along the length direction of the connecting body 2331. The ends of the plurality of support bodies 2332 are arranged to contact the vehicle body structure close to the ground side, thereby increasing the contact area, reducing the deformation of the supporting plate 21 caused by the load pressure of the passenger's feet, and improving the use reliability of the foot plate assembly.

[0071] In the non-use state, the support frame 233 is withdrawn into the inside of the supporting plate 21, and does not occupy the space in the vehicle. In the present embodiment, as shown in Figure 1 and Figure 4The supporting plate 21 comprises a detachable mounting cover 211 and a connecting cover 212, the driving member 221 is fixedly arranged in the mounting cover 211, the supporting mechanism 23 is arranged in the connecting cover 212, and the connecting cover 212 is provided with avoiding grooves suitable for accommodating the rotation of the supporting end of the supporting frame 233. Specifically, the avoiding grooves are provided with two, and the two avoiding grooves are arranged to avoid the supporting bodies 2332 with the designed rotation angle. The driving member 221 is loaded through the mounting cover 211, the supporting mechanism 23 is accommodated in the connecting cover 212, the avoiding grooves are arranged on the connecting cover 212, and when the supporting frame 233 is retracted, the avoiding grooves are used to accommodate the supporting end of the supporting frame 233, the structure is optimized, and space utilization is facilitated.

[0072] Referring to Figure 6 The guide rod 231 is provided with a guide groove 2311, and the guide groove 2311 and the moving rod 224 are slidingly arranged. In the embodiment, the driving mechanism 22 further comprises a limiting sleeve 225, the limiting sleeve 225 is installed at the end of the moving rod 224, and the limiting sleeve 225 and the guide groove 2311 are slidingly arranged. The limiting sleeve 225 is provided with a baffle, and the baffle abuts against the guide rod 231 to correct the sliding movement of the moving rod 224. As an example, the limiting sleeve 225 is provided with two baffles, the two baffles are arranged on the two sides of the guide rod 231, and a sliding part is arranged between the two baffles, and the sliding part and the guide groove 2311 are slidingly arranged. Through the driving cooperation of the driving mechanism 22 and the supporting mechanism 23, the moving rod 224 reciprocally slides in the guide groove 2311, so that the retracting or unfolding function of the supporting mechanism 23 in the foot pedal assembly can be realized. The two limit positions of the guide groove 2311 can be provided with a buffer structure, such as a buffer energy-absorbing plastic or a buffer rubber, to improve the stability of the sliding movement of the moving rod 224, and to facilitate the improvement of the movement precision of the supporting mechanism 23.

[0073] Referring to Figure 3 and Figure 4The drive mechanism 22 also includes a reducer 222 and a transmission structure. The reducer 222 is fixed inside the support plate 21 and is located at the output end of the drive member 221. The transmission structure includes a transmission screw 223 and a screw-slider. The transmission screw 223 is fixedly connected to the output end of the reducer 222, and the screw-slider is fixed to the moving rod 224. The extension direction of the transmission screw 223 is parallel to the guiding direction of the guide groove 2311. The transmission screw 223 and the screw-slider are connected in a transmission connection to drive the moving rod 224 to reciprocate. In some embodiments, the drive member 221 may be a drive motor, and the reducer 222 may be a worm gear reducer 222. The foot pedal assembly provided in this embodiment drives the lead screw slider to slide on the transmission lead screw 223 via the drive component 221, thereby driving the moving rod 224 to slide. Its transmission form is infinitely adjustable, which allows the moving rod 224 to slide with different sliding lengths. As a result, when the moving rod 224 drives the connecting rod 232 and the support frame 233 to move, the support frame 233 can rotate at different angles to adapt to the different support opening angles required by the foot pedal assembly, thus optimizing the support capacity of the foot pedal assembly.

[0074] When in use, the support mechanism 23 extends to contact the vehicle floor, providing support for the support plate 21 and improving the insufficient rigidity of the foot pedal assembly along the support direction. As an example, the extended surface of the upper end of the support plate 21 can be adjusted to be horizontal, allowing the passenger's feet to be placed horizontally. After contacting the vehicle structure, the support end of the support frame 233 is positioned along the height direction, perpendicular to the extended surface of the support plate 21. This enhances the foot pedal assembly's support for the passenger's feet, improving the insufficient rigidity of the foot pedal assembly along the vertical height direction. As another example, the extended surface of the upper end of the support plate 21 can be adjusted to be a plane inclined to the horizontal, allowing the passenger's feet to be placed at an angle. After contacting the vehicle structure, the support end of the support frame 233 is positioned perpendicular to the extended surface of the support plate 21. This enhances the foot pedal assembly's support for the passenger's feet, improving the insufficient rigidity of the foot pedal assembly along the vertical support direction.

[0075] In this embodiment, see Figure 1 The support plate 21 is configured as a square plate structure, the sliding direction of the moving rod 224 is parallel to the width direction of the support plate 21, and the length direction of the support frame 233 is parallel to the length direction of the support plate 21. In other embodiments, the support plate 21 is configured as a circular or elliptical structure, and the support mechanism 23 is built into the support plate 21.

[0076] The material of the supporting plate 21 can be metal material or engineering plastic, and the supporting plate 21 has good anti-deformation effect. The supporting plate 21 is an appearance part of the footrest assembly, and needs to have good appearance quality. For example, aluminum alloy, polyamide plastic, polycarbonate plastic, etc.

[0077] It should be noted that the footrest assembly is not limited to use by rear passengers, and can be used in other applications. For example, the footrest assembly is arranged at the front end of a seat and used by a passenger on the seat. The footrest assembly provides a foot supporting function, and the supporting mechanism 23 supports the supporting plate 21 to reduce deformation of the supporting plate 21 caused by the load pressure of the passenger's feet, thereby improving the use reliability of the footrest assembly.

[0078] Embodiment 2

[0079] The embodiment provides a seat including a seat framework assembly and the footrest assembly of embodiment 1. The seat framework assembly is adapted to be connected to a vehicle frame. The footrest assembly is reversibly installed on the seat framework assembly. When the footrest assembly supports the passenger's feet, the supporting mechanism 23 in the footrest assembly supports the supporting plate to reduce deformation of the supporting plate caused by the load pressure of the passenger's feet, thereby improving the use reliability of the footrest assembly and facilitating the convenience and safety of the seat.

[0080] In this embodiment, referring to Figure 1 and Figure 2 , the seat framework assembly includes a chair frame 11 and a mounting assembly 12. The mounting assembly 12 includes a mounting seat 121, a mounting shaft 122, and a locking part 123. The mounting seat 121 is fixedly connected to the chair frame 11. The mounting shaft 122 is rotatably arranged with the mounting seat 121, and the footrest assembly is fixedly connected to the mounting shaft 122. The locking part 123 is sleeved on the mounting shaft 122 to lock and fix the footrest assembly on the mounting shaft 122.

[0081] Specifically, referring to Figure 2 , the mounting seat 121 is provided with two mounting seats 121, which are respectively fixedly connected to the chair frame 11. The two ends of the mounting shaft 122 are respectively rotatably connected between the two mounting seats 121. The mounting shaft 122 is driven to rotate by an external mechanism to adjust and reverse the footrest assembly to a desired position, thereby meeting the use requirements of the rear passengers.

[0082] As an implementation, referring to Figure 6 , the guide rod 231 is provided with an assembly hole 2313, and the mounting shaft 122 is arranged through the assembly hole 2313. The assembly hole 2313 is used to assemble the mounting shaft 122, thereby providing sufficient contact connection area between the guide rod 231 and the mounting shaft 122.

[0083] Referring to Figure 2 and Figure 3The locking members 123 are arranged in sleeving spring members, and are sleeved on the mounting shaft 122. In the embodiment, two locking members 123 are arranged. The two locking members 123 are arranged at intervals, and the opposite ends in the length direction abut against the guide rods 231, so as to limit the approaching movement of the two guide rods 231, avoid the displacement of the guide rods 231 from affecting the movement of the supporting mechanism 23, and improve the movement precision of the overall supporting mechanism 23.

[0084] In the embodiment, the overall overturning and supporting expansion movement of the footboard assembly are synchronously controlled by the seat ECU (seat electronic controller unit) or the electronic control signal of the whole vehicle. When the footboard assembly is overturned downward by the external driving action, the supporting mechanism 23 is expanded downward by the driving mechanism 22, so as to play a supporting function.

[0085] The seat provided by the application has the following use method:

[0086] Firstly, the mounting shaft 122 is rotated by the external driving action, so that the mounting shaft 122 synchronously drives the footboard assembly to overturn. Then, the expansion process of the supporting mechanism 23 is driven by the driving mechanism 22. The driving member 221 drives the lead screw 223 and the lead screw block, the lead screw block drives the moving rod 224 to slide in the guide direction of the guide rod 231, the moving rod 224 drives the transmission connecting rod 232 and the supporting frame 233, the rotating angle of the supporting frame 233 is changed, the supporting end of the supporting frame 233 is close to the vehicle body structure on the ground side, so as to support the supporting plate 21 by the supporting end. The retraction process of the supporting mechanism 23 is driven by the driving mechanism 22, which is not repeated here.

[0087] Obviously, the above embodiment is only an example for clearly illustrating, and does not limit the implementation. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the implementation is not required and cannot be exhausted. The obvious changes or variations derived from the above still fall within the protection scope of the application.

Claims

1. A foot pedal assembly, suitable for connection to a seat frame assembly, characterized in that, The foot pedal assembly includes: Support plate (21) is suitable for supporting the passenger's feet; The driving mechanism (22) includes a driving member (221) and a moving rod (224). The driving member (221) is mounted on the support plate (21), and the moving rod (224) is throttle connected to the driving end of the driving member (221). The support mechanism (23) includes a support plate (21) mounted on the support mechanism (23); the support mechanism (23) includes a guide rod (231) and a support frame (233) rotatably connected, the guide rod (231) and the moving rod (224) being slidably connected; the guide rod (231) is provided with a guide groove (2311), the guide groove (2311) and the moving rod (224) being slidably arranged; Under the action of the driving member (221), the moving rod (224) slides back and forth along the guiding direction of the guide rod (231) to adjust the rotation angle of the support end of the support frame (233) so that the support end rotates closer to or away from the ground side; The support plate (21) includes a detachably connected mounting cover (211) and a connecting cover (212). The driving component (221) is fixedly installed inside the mounting cover (211). The support mechanism (23) is installed inside the connecting cover (212). The connecting cover (212) is provided with a clearance groove suitable for accommodating the rotation of the support end of the support frame (233). The drive mechanism (22) further includes a reducer (222) and a transmission structure. The reducer (222) is fixed inside the support plate (21) and is located at the output end of the drive member (221). The transmission structure includes a transmission screw (223) and a screw slider. The transmission screw (223) is fixedly connected to the output end of the reducer (222), and the screw slider is fixed on the moving rod (224). The extension direction of the transmission screw (223) is parallel to the guiding direction of the guide groove (2311). The transmission screw (223) and the screw slider are connected in a transmission connection to drive the moving rod (224) to slide back and forth. The support mechanism (23) further includes a connecting rod (232), one end of which is rotatably connected to the moving rod (224), and the other end of which is rotatably connected to the support frame (233); The support frame (233) includes a connecting body (2331) and a supporting body (2332); the end of the supporting body (2332) away from the connecting body (2331) is configured as the supporting end; The connecting body (2331) and the guide rod (231) are rotatably connected, and the connecting body (2331) and the support body (2332) are fixedly connected; or, the connecting body (2331) and the guide rod (231) are fixedly connected, and the connecting body (2331) and the support body (2332) are rotatably connected.

2. The foot pedal assembly according to claim 1, characterized in that, Two guide rods (231) and two connecting rods (232) are provided respectively, and the connecting body (2331) is provided between the two guide rods (231); two support bodies (2332) are provided, and the two support bodies (2332) are provided at intervals, and the support bodies (2332) and the connecting rods (232) are connected to each other.

3. The foot pedal assembly according to claim 2, characterized in that, The moving rod (224) has a first position state and a second position state; In the first position state, the moving rod (224) is located in the initial driving position or the reset limit position of the driving member (221); In the second position state, the moving rod (224) is located at the travel limit position driven by the driving member (221) or the reset initial position; When the movable rod (224) is in the first position, for the corresponding connected connecting rod (232) and the support body (2332), on a plane perpendicular to the rotation axis of both, the obtuse angle formed by the projection of the length direction of the connecting rod (232) and the extension direction of the support body (2332) on this plane is set to 175°-177°, and the tips formed by the connecting rod (232) and the support body (2332) are set towards the ground side.

4. The foot pedal assembly according to any one of claims 1-3, characterized in that, The foot pedal assembly also includes a support wheel (24), and the support mechanism (23) also includes a second adapter (235). The support wheel (24) is sleeved on the second adapter (235). One end of the second adapter (235) is rotatably connected to the connecting rod (232), and the other end of the second adapter (235) is rotatably connected to the support frame (233). The support wheel (24) is disposed between the connecting rod (232) and the support frame (233). The support wheel (24) and the second adapter (235) are fixedly connected or rotatably connected.

5. The foot pedal assembly according to claim 1, characterized in that, The drive mechanism (22) also includes a limiting sleeve (225), which is installed at the end of the moving rod (224), and the limiting sleeve (225) and the guide groove (2311) are slidably arranged.

6. A type of seat, characterized in that, include: Seat frame assembly, suitable for connection to the vehicle frame; And the foot pedal assembly, which is the foot pedal assembly according to any one of claims 1-5; The foot pedal assembly is rotatably mounted on the seat frame assembly.

7. The seat according to claim 6, characterized in that, The seat frame assembly includes a seat frame (11) and a mounting assembly (12); the mounting assembly (12) includes a mounting base (121), a mounting shaft (122), and a locking member (123). The mounting base (121) is fixedly connected to the seat frame (11), the mounting shaft (122) and the mounting base (121) are rotatably configured, and the foot pedal assembly is fixedly connected to the mounting shaft (122); the locking member (123) is sleeved on the mounting shaft (122) to lock the foot pedal assembly onto the mounting shaft (122).

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