Vehicle seats

Abstract

The utility model provides a vehicle seat, which includes a backrest frame and a cushion frame, and a floor lock unlocking assembly; the backrest frame is connected to the cushion frame through a lower connecting plate, and a recliner is provided between the backrest frame and the lower connecting plate. When the recliner is unlocked, the backrest frame can rotate around the center of the recliner; the floor lock unlocking assembly includes a toggle portion provided on the backrest frame, and a driving member and a follower rotatably provided on the lower connecting plate, the driving member is provided with a toggle groove abutting against the toggle portion, when the backrest frame rotates, the toggle portion pushes the driving member to rotate between the backrest initial position and the backrest folding position, the follower is connected to the pull wire of the floor lock, and the follower can receive the rotation of the driving member to pull the pull wire to unlock the floor lock. The vehicle seat of the utility model can realize the linkage unlocking of the floor lock and the recliner by means of the rotation of the backrest frame and the cooperation with the floor lock unlocking assembly, so as to achieve the purpose of one-key unlocking.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle parts, in particular to a vehicle seat. Background Art

[0002] With the rapid development of the automobile industry and the improvement of users' living standards, the market's requirements for the functionality and convenience of automobile seats and trunk space are constantly increasing, and the seat cushion forward folding mechanism has emerged. At present, there are some rear seats with forward folding function on the market, but the existing seat back unlocking and floor lock unlocking are unlocked separately. The seat flipping function can only be realized by operating the back unlocking button first and then the floor lock unlocking button. The flipping process is cumbersome and the flipping efficiency is low. Utility Model Content

[0003] In view of this, the utility model aims to provide a vehicle seat, so as to realize linkage unlocking of a floor lock and a recliner, thereby achieving the purpose of one-key unlocking.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A vehicle seat comprises a backrest frame and a seat cushion frame, and a floor lock unlocking assembly arranged between the backrest frame and the seat cushion frame;

[0006] The backrest frame is connected to the seat cushion frame via a lower connecting plate, a recliner is provided between the backrest frame and the lower connecting plate, and when the recliner is unlocked, the backrest frame can rotate around the center of the recliner;

[0007] The floor lock unlocking assembly includes a toggle portion provided on the backrest frame, and a driving member and a follower rotatably provided on the lower connecting plate, the driving member is provided with a toggle groove abutting against the toggle portion, when the backrest frame rotates, the toggle portion pushes the driving member to rotate between the backrest initial position and the backrest folding position, the follower is connected to the pull wire of the floor lock, and the follower can bear the rotation of the driving member, pulling the pull wire to unlock the floor lock.

[0008] Furthermore, a mounting base is provided on the lower connecting plate, the driving member and the driven member are rotatably provided on the mounting base, and a wire pulling seat of the wire pulling wire is fixed on the mounting base.

[0009] Furthermore, an elastic reset member is provided between the follower and the mounting base. The elastic reset member is compressed to store energy when the driving member pushes the follower to rotate. When the driving member releases the push from the follower, the elastic reset member releases energy and drives the follower to reset.

[0010] Furthermore, the follower includes a first follower plate and a second follower plate rotatably arranged on the mounting base, one end of the first follower plate is hinged to the second follower plate, the other end of the first follower plate can abut against the driving member, and the second follower plate is connected to the pull wire.

[0011] Furthermore, a driving portion is provided at one end of the driving member away from the toggle slot, and the first driven plate is provided with a convex column protruding toward one side of itself; when the driving member rotates, the driving portion can abut and push the convex column to make the first driven plate rotate relative to the mounting base.

[0012] Furthermore, the mounting base is provided with a rotating shaft passing through the first driven plate and the second driven plate; the elastic reset member includes a first elastic reset member arranged between the first driven plate and the second driven plate, and a second elastic reset member arranged between the second driven plate and the mounting base bracket.

[0013] Furthermore, the lower connecting plate is provided with a first limit end and a second limit end for limiting the rotation angle of the toggle portion, and in the initial position of the backrest, the toggle portion abuts against the first limit end, and in the folded position of the backrest, the toggle portion abuts against the second limit end; and / or, a backrest driving device is provided on the backrest frame, and a synchronization rod is provided on the angle adjuster, the synchronization rod is transmission-connected with the backrest driving device, and the synchronization rod is driven to rotate by the backrest driving device to unlock the angle adjuster.

[0014] Furthermore, the seat cushion frame is provided with a support frame connected to the vehicle floor, and the seat cushion frame is hingedly connected to the support frame; when the floor lock is unlocked, the seat cushion frame can rotate relative to the support frame between the seat cushion initial position and the seat cushion folding position.

[0015] Furthermore, a cushion driving device is provided on the cushion frame, the cushion frame and the support frame are connected via a transmission assembly, and the cushion driving device is transmission-connected to the transmission assembly, the transmission assembly is transmission-connected to the cushion driving device and the support frame respectively, and the transmission assembly is driven by the cushion driving device to drive the cushion frame to rotate between an initial seat position and a folded seat position.

[0016] Furthermore, the transmission assembly includes a gear connected to the seat cushion driving device, and a toothed plate arranged on the support frame, and the gear is meshed and connected with teeth on the toothed plate.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] The vehicle seat described in the utility model can achieve angle adjustment between the backrest frame and the seat cushion frame by means of a recliner arranged between the backrest frame and the lower connecting plate. At the same time, the backrest frame is rotated relative to the seat cushion frame by means of unlocking the recliner, and the driving member is pushed by the toggle portion on the backrest frame to rotate between the initial position of the backrest and the folded position of the backrest. The driven member receives the rotation of the driving member to pull the pull wire, so that the floor lock is unlocked, thereby realizing linkage unlocking of the floor lock and the recliner, achieving the purpose of one-button unlocking, thereby facilitating the forward flipping and folding of the seat cushion, and reducing the steps of seat flipping, and having a good use effect.

[0019] In addition, the arrangement of the mounting base can provide space for the driver, the follower and the wire pull seat, making the structure compact and easy to install. The elastic reset member arranged between the follower and the mounting base is conducive to the reset of the follower. The follower adopts a first follower plate and a second follower plate rotatably arranged on the mounting base, and one end of the first follower plate is hinged to the second follower plate, and the other end can abut against the driver, so that when the driver drives the first follower plate to rotate, the second follower plate is driven to rotate, so that the wire is pulled to unlock the floor lock, so that the structure is more compact and the reliability of unlocking the floor lock can be ensured.

[0020] Secondly, the driving part on the driving member cooperates with the boss on the first driven plate, so that when the driving member rotates, the driving part abuts and pushes the boss, thereby driving the first driven plate to rotate. The structure is simple, the cost is low, and it is easy to process. A rotating shaft that runs through the first driven plate and the second driven plate is set on the mounting base, so that the first driven plate and the second driven plate are rotatably set on the mounting base with the same rotation center. Such a structural arrangement is more compact and occupies less space. The first elastic reset member and the second elastic reset member are provided to facilitate the reset of the first driven plate and the second driven plate, so that when the driving part releases the push from the boss, the reset of the first driven plate and the second driven plate is utilized, so that the floor lock is better in a locked state.

[0021] Furthermore, the first limit end and the second limit end provided on the lower connecting plate can effectively limit the rotation angle of the toggle part, and enable the backrest frame to be better maintained in the initial position of the backrest and the folded position of the backrest after flipping forward. The provision of the backrest drive device and the synchronization rod can improve the automation of unlocking and locking the recliner, and the same backrest drive device can be used in conjunction with the recliner and the floor lock unlocking assembly to unlock the floor lock, without the need to separately provide a floor lock drive device.

[0022] In addition, the support frame cooperates with the locked floor lock to better fix the seat frame on the vehicle floor, and when the floor lock is unlocked, the hinged connection between the seat frame and the support frame is conducive to the seat frame flipping forward from the initial position of the seat to the folded position of the seat, thereby realizing the folding of the seat frame and saving space in the vehicle. The setting of the seat drive device and the transmission assembly is conducive to realizing the automation of the flipping of the seat frame, making the flipping operation of the seat frame time-saving and labor-saving, and highly reliable. The transmission assembly adopts a gear and tooth plate structure, which makes the flipping process of the seat frame smoother and has higher motion accuracy, and is conducive to ensuring the stability of the seat frame in the initial position of the seat and the folded position of the seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0024] Figure 1 A schematic structural diagram of a vehicle seat according to an embodiment of the utility model from a first viewing angle;

[0025] Figure 2 A schematic structural diagram of a vehicle seat according to an embodiment of the utility model from a second viewing angle;

[0026] Figure 3 It is a structural schematic diagram of the backrest frame according to an embodiment of the utility model from a first perspective;

[0027] Figure 4 A schematic structural diagram of a backrest frame from a second viewing angle according to an embodiment of the utility model;

[0028] Figure 5 This is a schematic structural diagram of the lower connecting plate according to an embodiment of the utility model;

[0029] Figure 6 It is a structural schematic diagram of a floor lock unlocking assembly according to an embodiment of the utility model from a first perspective;

[0030] Figure 7 It is a structural schematic diagram of the floor lock unlocking assembly according to an embodiment of the utility model from a second perspective;

[0031] Figure 8 It is a structural schematic diagram of the seat cushion frame according to an embodiment of the utility model from a first perspective;

[0032] Fig. 9 A schematic structural diagram of the seat cushion frame according to an embodiment of the utility model from a second viewing angle;

[0033] Description of reference numerals:

[0034] 1. Backrest frame; 2. Cushion frame; 3. Floor lock unlocking assembly; 4. Pull wire; 5. Floor lock; 101. Toggle part; 11. Lower connecting plate; 12. Backrest driving device; 13. Synchronous rod; 14. Recliner; 1101. First limit end; 1102. Second limit end; 111. Mounting base; 1111. Fixed support foot; 1112. First mounting support arm; 1113. Second mounting support arm; 21 , support frame; 22, seat cushion driving device; 23, gear; 24, tooth plate; 241, teeth; 242, guide groove; 201, pin shaft; 31, driving member; 32, first driven plate; 33, second driven plate; 34, first elastic return member; 35, second elastic return member; 36, first rivet; 37, second rivet; 311, toggle groove; 312, driving part; 321, boss; 41, wire pull seat. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0036] In the description of the present invention, it should be noted that if there are terms such as "upper", "lower", "inner", "outer" and the like indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first" and "second", they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0037] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection" and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0038] In the description of the utility model, it should be noted that the directional words such as "up, down, left, right, front, and back" used in the present embodiment are defined based on the up-down direction, left-right direction, and front-back direction of the car. Among them, the up-down direction of the car is also the height direction of the car, the front-back direction of the car is also the length direction of the car, and the left-right direction of the car is also the width direction of the car.

[0039] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0040] The present embodiment relates to a vehicle seat, which can realize linkage unlocking of a floor lock and a recliner 14, thereby achieving the purpose of one-key unlocking.

[0041] In terms of overall composition, Figures 1 to 4 As shown, the vehicle seat of this embodiment includes a backrest frame 1 and a seat cushion frame 2 , and a floor lock unlocking assembly 3 arranged between the backrest frame 1 and the seat cushion frame 2 .

[0042] Among them, the backrest frame 1 is connected to the seat cushion frame 2 through the lower connecting plate 11, and an adjuster 14 is provided between the backrest frame 1 and the lower connecting plate 11. When the adjuster 14 is unlocked, the backrest frame 1 can rotate around the center of the adjuster 14 to adjust the angle between the backrest frame 1 and the seat cushion frame 2, that is, to realize the rotation of the backrest frame 1 relative to the seat cushion frame 2.

[0043] The floor lock unlocking assembly 3 includes a toggle portion 101 arranged on the backrest frame 1, and a driving member 31 and a follower rotatably arranged on the lower connecting plate 11. The driving member 31 is provided with a toggle groove 311 abutting against the toggle portion 101. When the backrest frame 1 rotates, the toggle portion 101 pushes the driving member 31 to rotate between the initial position of the backrest and the folding position of the backrest. The follower is connected to the pull wire 4 of the floor lock 5, and the follower can bear the rotation of the driving member 31, pulling the pull wire 4 to unlock the floor lock 5.

[0044] At this time, as in the above structure, the angle adjuster 14 arranged between the backrest frame 1 and the lower connecting plate 11 can realize the angle adjustment of the backrest frame 1 relative to the seat cushion frame 2. At the same time, by unlocking the angle adjuster 14, the backrest frame 1 is rotated relative to the seat cushion frame 2, and the driving member 31 is pushed by the toggle portion 101 on the backrest frame 1 to rotate between the initial position of the backrest and the folding position of the backrest. The follower receives the rotation of the driving member 31 to pull the pull wire 4, so that the floor lock 5 is unlocked, thereby realizing the linkage unlocking of the floor lock 5 and the angle adjuster 14, achieving the purpose of one-button unlocking, thereby facilitating the forward flipping and folding of the seat cushion, and reducing the steps of seat flipping.

[0045] In detail, based on the above overall structure, continue to refer to Figures 1 to 4 , and combined with Figures 5 to 7As shown, as a preferred embodiment, in this embodiment, the backrest frame 1 is screwed to the seat cushion frame 2 through the lower connecting plates 11 arranged on the left and right sides, and the recliner 14 is arranged between the backrest frame 1 and the lower connecting plate 11. When the recliner 14 is locked, the backrest frame 1 and the seat cushion frame 2 are relatively fixed. When the recliner 14 is unlocked, the backrest frame 1 can rotate around the center of the recliner 14. At this time, the angle between the backrest frame 1 and the seat cushion frame 2 can be adjusted, that is, the rotation of the backrest frame 1 relative to the seat cushion frame 2 can be realized. Among them, the recliner 14 of this embodiment can adopt an existing mature product, and this embodiment does not introduce this structure in detail.

[0046] As a preferred embodiment, in this embodiment, a mounting base 111 is provided on the lower connecting plate 11, the driving member 31 and the driven member are rotatably provided on the mounting base 111, and the cable holder 4 of the cable 4 is fixed on the mounting base 111. At this time, the arrangement of the mounting base 111 can provide a layout space for the driving member 31, the driven member and the cable holder 4, making the structure compact and easy to install.

[0047] In a specific implementation, the mounting base 111 is arranged on the lower connecting plate 11 on one side thereof, and the mounting base 111 can be formed by bending a sheet metal, for example, and has a main body portion that carries the driving member 31 and the driven member, and a fixed support leg 1111 bent along the main body portion toward the side where the lower connecting plate 11 is located, and a first mounting support arm 1112 and a second mounting support arm 1113 bent along the main body portion toward the side away from the lower connecting plate 11. The fixed support leg 1111 is used to be fixedly connected to the lower connecting plate 11, the first mounting support arm 1112 is used to install the wire pull seat 4, and the second mounting support arm 1113 is used to install the second elastic reset member 35 described below.

[0048] In this embodiment, an L-shaped bent plate is provided on one side of the backrest frame 1, and the L-shaped bent plate has a vertical plate connected to the backrest frame 1, and a horizontal plate extending toward the outside of the backrest frame 1, and the horizontal plate constitutes the above-mentioned toggle portion 101. At this time, the toggle portion 101 is in the form of a horizontal plate, which has a simple structure and is easy to install. Of course, it can be understood that in addition to adopting the above-mentioned structural form, the toggle portion 101 can also be, for example, a columnar toggle column fixedly arranged on the side of the backrest frame 1.

[0049] The driving member 31 of this embodiment preferably adopts a plate-like structure, which has a simple structure, low cost and is easy to process. In terms of specific structure, the driving member 31 is generally in a Y-shaped structure, and has a toggle groove 311 that abuts against the toggle part 101, that is, the above-mentioned cross plate is located in the toggle groove 311 and abuts against the toggle groove 311. In addition, the end of the driving member 31 away from the toggle groove 311 constitutes a driving part 312, which is used to abut against the driven member and push the driven member to rotate.

[0050] To facilitate the reset of the follower, in this embodiment, an elastic reset member is provided between the follower and the mounting base 111. The elastic reset member is compressed and stores energy when the driving member 31 pushes the follower to rotate. When the driving member 31 releases the push from the follower, the elastic reset member releases energy and drives the follower to reset. At this time, the follower is reset, driving the pull wire 4 to reset, so that the floor lock 5 can be switched from the unlocked state to the locked state.

[0051] Specifically, as a preferred implementation form, the driven member of this embodiment includes a first driven plate 32 and a second driven plate 33 rotatably arranged on the mounting base 111, one end of the first driven plate 32 is hinged to the second driven plate 33, the other end of the first driven plate 32 can abut against the driving member 31, and the second driven plate 33 is connected to the pull wire 4. At this time, when the driving member 31 drives the first driven plate 32 to rotate, the second driven plate 33 is driven to rotate, and the pull wire 4 is pulled, thereby unlocking the floor lock 5. Such a design can make the structure more compact and ensure the reliability of unlocking the floor lock 5.

[0052] In the specific implementation, see Figure 6 and Figure 7 As shown, a rotating shaft passing through the first driven plate 32 and the second driven plate 33 is provided on the mounting base 111. At this time, the first driven plate 32 and the second driven plate 33 can rotate around the axis of the rotating shaft, that is, the first driven plate 32 and the second driven plate 33 are rotatably arranged on the mounting base 111 with the same rotation center, which can make the structural arrangement of the floor lock unlocking assembly 3 more compact and occupy less space.

[0053] It is worth noting that, in addition to the rotating shaft, the present embodiment may also use a first rivet 36 that passes through the first driven plate 32 and the second driven plate 33. One end of the shaft of the first rivet 36 is riveted to the mounting base 111. The cooperation between the cap body at the other end of the first rivet 36 and the mounting base 111 can play a good role in axial limiting, and its structure is simple and easy to assemble. Moreover, the hinge of the first driven plate 32 and the second driven plate 33 is also hingedly connected together by a second rivet 37.

[0054] The elastic reset member specifically includes a first elastic reset member 34 disposed between the first driven plate 32 and the second driven plate 33, and a second elastic reset member 35 disposed between the second driven plate 33 and the bracket of the mounting base 111. The first elastic reset member 34 and the second elastic reset member 35 are provided to facilitate the reset of the first driven plate 32 and the second driven plate 33, so that when the driving part 312 releases the push from the boss 321, the reset of the first driven plate 32 and the second driven plate 33 is utilized to make the floor lock 5 in a better locked state.

[0055] It should be noted that, in addition to the split structure of the first driven plate 32 and the second driven plate 33, the driven member of this embodiment can also adopt an integral structure, so that it can rotate with the rotation of the driving member 31, and the floor lock 5 can be unlocked by pulling the pull wire 4. In this case, it is set as an integral structure. In order to facilitate the reset of the driven member, only one elastic reset member can be provided, and the elastic reset member is connected to the driven member and the mounting base 111. In addition, it should also be noted that the floor lock 5 of this embodiment adopts an existing mature product, and its specific structure will not be described in detail in this embodiment.

[0056] In this embodiment, a boss 321 protruding toward one side of the first driven plate 32 is provided on the first driven plate 32 corresponding to the driving portion 312 of the driving member 31. The driving member 31 rotates so that the driving portion 312 can abut against and push the boss 321, thereby causing the first driven plate 32 to rotate relative to the mounting base 111 and pull the pull wire 4. When the boss 321 releases the pushing of the driving portion 312, the pull wire 4 is retracted and reset under the action of the return spring of the floor lock 5, and at this time, the floor lock 5 is in a locked state.

[0057] See also Figure 5 As shown, in this embodiment, a first limiting end 1101 and a second limiting end 1102 for limiting the rotation angle of the toggle portion 101 are provided on the lower connecting plate 11. In the initial position of the backrest, the toggle portion 101 abuts against the first limiting end 1101, and in the folded position of the backrest, the toggle portion 101 abuts against the second limiting end 1102. The provision of the first limiting end 1101 and the second limiting end 1102 can effectively limit the rotation angle of the toggle portion 101, and enable the backrest frame 1 to be better maintained in the initial position of the backrest and the folded position of the backrest after flipping forward.

[0058] Moreover, as a preferred implementation mode, in this embodiment, review Figures 1 to 4 As shown, a backrest drive device 12 is fixedly provided on the backrest frame 1, and a synchronization rod 13 is provided on the recliner 14. The synchronization rod 13 is connected to the backrest drive device 12 by transmission, and the synchronization rod 13 is driven to rotate by the backrest drive device 12 to unlock the recliner 14. The arrangement of the backrest drive device 12 and the synchronization rod 13 can improve the degree of automation of unlocking and locking the recliner 14, and the same backrest drive device 12 is used, and the recliner 14 and the floor lock unlocking assembly 3 are matched, and the floor lock 5 can also be unlocked, without the need to set up a separate drive device for the floor lock 5. As a preferred embodiment, the backrest drive device 12 of this embodiment preferably adopts a motor, at which time the motor drives the synchronization rod 13 to rotate, the recliner 14 is unlocked, and then the backrest frame 1 rotates around the central axis of the recliner 14, and the toggle portion 101 pushes the driving member 31 to rotate, and the rotation of the driving member 31 drives the driven member to rotate, the pull wire 4 is pulled out, and the floor lock 5 is unlocked.

[0059] Combination Figure 1 , Figure and Figure 8 and Fig. 9 As shown, in this embodiment, the rear end of the seat cushion frame 2 is locked on the floor of the vehicle by the floor lock 5, and the front end of the seat cushion frame 2 is provided with a support frame 21 connected to the vehicle floor, and the seat cushion frame 2 is hingedly connected to the support frame 21. Moreover, when the floor lock 5 is unlocked, the seat cushion frame 2 can rotate between the seat cushion initial position and the seat cushion folding position relative to the support frame 21. Such a configuration is conducive to the seat cushion frame 2 being flipped forward from the seat cushion initial position to the seat cushion folding position, thereby realizing the folding of the seat cushion frame 2 and saving space in the vehicle.

[0060] For details, see Figure 8 and Fig. 9 As shown, a cushion driving device 22 is provided on the cushion frame 2 of the present embodiment, the cushion frame 2 and the support frame 21 are connected via a transmission assembly, and the cushion driving device 22 is transmission-connected to the transmission assembly, the transmission assembly is transmission-connected to the cushion driving device 22 and the support frame 21 respectively, and the transmission assembly is driven by the cushion driving device 22 to drive the cushion frame 2 to rotate between the cushion initial position and the cushion folding position.

[0061] Specifically, the seat cushion driving device 22 also preferably adopts a motor, which drives the transmission assembly, so that the transmission assembly drives the seat cushion frame 2 to rotate between the seat cushion initial position and the seat cushion folding position. The setting of the seat cushion driving device 22 and the transmission assembly is conducive to realizing the automation of flipping the seat cushion frame 2, making the flipping operation of the seat cushion frame 2 time-saving, labor-saving, and highly reliable.

[0062] The transmission assembly of this embodiment specifically includes a gear 23 connected to the seat cushion driving device 22, and a tooth plate 24 provided on the support frame 21, and the gear 23 is meshed and connected with the teeth 241 on the tooth plate 24. At this time, the cooperation of the gear 23 and the tooth plate 24 makes the seat cushion frame 2 more stable during the flipping process, has higher movement accuracy, and is also conducive to ensuring the stability of the seat cushion frame 2 in the initial position of the seat cushion and the folded position of the seat cushion.

[0063] To further ensure the smooth rotation of the cushion frame 2, in this embodiment, a pin shaft 201 is provided on the cushion frame 2, and a guide groove 242 is provided on the tooth plate 24. The pin shaft 201 passes through the guide groove 242 from one side of the tooth plate 24 and extends to the other side of the tooth plate 24. At this time, when the gear 23 rotates along the tooth plate 24, the pin shaft 201 can slide in the guide groove 242, and the two ends of the guide groove 242 can also limit the moving position of the pin shaft 201, that is, the flipping angle of the cushion frame 2.

[0064] The vehicle seat of this embodiment, when in use, is driven by the backrest driving device 12 to drive the synchronous rod 13 to rotate, the recliner 14 is unlocked, and the backrest frame 1 rotates around the central axis of the recliner 14. At this time, the toggle portion 101 on the backrest frame 1 pushes the driving member 31 to rotate. After the driving member 31 rotates a certain angle, the driving portion 312 on the driving member 31 abuts against the boss 321 and pushes the boss 321, so that the first driven plate 32 rotates around the center of the rotating shaft. Under the action of the hinge between the first driven plate 32 and the second driven plate 33, the second driven plate 33 is driven to rotate, and the pull wire 4 is pulled to unlock the floor lock 5. Moreover, under the drive of the backrest driving device 12, the toggle portion 101 rotates from the first limit end 1101 to the second limit end 1102, so that the backrest frame 1 flips forward and forms a state of overlapping with the seat cushion frame 2.

[0065] When the floor lock 5 is unlocked, the backrest driving device 12 drives the gear 23 to rotate along the teeth 241 on the tooth plate 24. At this time, the seat cushion frame 2 rotates with the axis of the hinge position of the seat cushion frame 2 and the support frame 21 as the rotation center, so that the seat cushion frame 2 and the folded backrest frame 1 are flipped forward from the initial position of the seat cushion to the folded position of the seat cushion.

[0066] When the seat cushion needs to be switched from the folding position to the initial position, the backrest drive device 12 is driven to make the gear 23 rotate in the opposite direction along the teeth 241 on the gear plate 24, that is, the seat cushion frame 2 rotates in the opposite direction, so that the seat cushion folding position can be switched to the initial position.

[0067] When it is necessary to switch from the folding position of the backrest to the initial position of the backrest, the backrest driving device 12 drives the synchronization rod 13 to rotate in the opposite direction, and the backrest frame 1 rotates in the opposite direction around the center of the angle adjuster 14. At this time, the toggle part 101 on the backrest frame 1 pushes the driving member 31 to rotate in the opposite direction. At the same time, the first driven plate 32 and the second driven plate 33 are reset, and the pull wire 4 returns to the initial position under the reset spring of the floor lock 5, and the floor lock 5 completes the locking action.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle seat, characterized in that: It comprises a backrest frame (1) and a seat cushion frame (2), and a floor lock unlocking assembly (3) arranged between the backrest frame (1) and the seat cushion frame (2); The backrest frame (1) is connected to the seat cushion frame (2) via a lower connecting plate (11); a recliner (14) is provided between the backrest frame (1) and the lower connecting plate (11); when the recliner (14) is unlocked, the backrest frame (1) can rotate around the center of the recliner (14); The floor lock unlocking assembly (3) comprises a toggle portion (101) provided on the backrest frame (1), and a driving member (31) and a driven member rotatably provided on the lower connecting plate (11); the driving member (31) is provided with a toggle groove (311) abutting against the toggle portion (101); when the backrest frame (1) rotates, the toggle portion (101) pushes the driving member (31) to rotate between an initial position of the backrest and a folded position of the backrest; the driven member is connected to a pull wire (4) of a floor lock (5), and the driven member can receive the rotation of the driving member (31) and pull the pull wire (4) to unlock the floor lock (5).

2. The vehicle seat according to claim 1, characterized in that: The lower connecting plate (11) is provided with a mounting base (111), the driving member (31) and the driven member are rotatably arranged on the mounting base (111), and the wire pull seat (41) of the wire pull (4) is fixed on the mounting base (111).

3. The vehicle seat according to claim 2, characterized in that: An elastic reset member is provided between the driven member and the mounting base (111); the elastic reset member is compressed and stores energy when the driving member (31) pushes the driven member to rotate; when the driving member (31) releases the pushing force from the driven member, the elastic reset member releases energy and drives the driven member to reset.

4. The vehicle seat according to claim 3, characterized in that: The follower comprises a first follower plate (32) and a second follower plate (33) rotatably arranged on the mounting base (111), one end of the first follower plate (32) is hinged to the second follower plate (33), the other end of the first follower plate (32) can abut against the driving member (31), and the second follower plate (33) is connected to the pull wire (4).

5. The vehicle seat according to claim 4, characterized in that: The end of the driving member (31) away from the toggle slot (311) is provided with a driving portion (312), and the first driven plate (32) is provided with a convex column (321) protruding toward one side thereof; The driving member (31) rotates, and the driving portion (312) is able to abut against and push the boss (321), so that the first driven plate (32) rotates relative to the mounting base (111).

6. The vehicle seat according to claim 4, characterized in that: The mounting base (111) is provided with a rotating shaft penetrating the first driven plate (32) and the second driven plate (33); The elastic return member comprises a first elastic return member (34) arranged between the first driven plate (32) and the second driven plate (33), and a second elastic return member (35) arranged between the second driven plate (33) and the mounting base (111) bracket.

7. The vehicle seat according to claim 1, characterized in that: The lower connecting plate (11) is provided with a first limiting end (1101) and a second limiting end (1102) for limiting the rotation angle of the toggle portion (101); in the initial position of the backrest, the toggle portion (101) abuts against the first limiting end (1101); in the folded position of the backrest, the toggle portion (101) abuts against the second limiting end (1102); and / or, The backrest frame (1) is provided with a backrest driving device (12), and the angle adjuster (14) is provided with a synchronization rod (13), the synchronization rod (13) is transmission-connected with the backrest driving device (12), and the synchronization rod (13) is driven to rotate by the backrest driving device (12) to unlock the angle adjuster (14).

8. The vehicle seat according to any one of claims 1 to 7, characterized in that: The seat cushion frame (2) is provided with a support frame (21) connected to the vehicle floor, and the seat cushion frame (2) is hingedly connected to the support frame (21); When the floor lock (5) is unlocked, the seat cushion frame (2) can rotate relative to the support frame (21) between a seat cushion initial position and a seat cushion folding position.

9. The vehicle seat according to claim 8, characterized in that: The seat cushion frame (2) is provided with a seat cushion driving device (22), the seat cushion frame (2) and the support frame (21) are connected via a transmission assembly, and the seat cushion driving device (22) is transmission-connected to the transmission assembly, the transmission assembly is transmission-connected to the seat cushion driving device (22) and the support frame (21) respectively, and the transmission assembly is driven by the seat cushion driving device (22) to drive the seat cushion frame (2) to rotate between an initial seat cushion position and a folded seat cushion position.

10. The vehicle seat according to claim 9, characterized in that: The transmission assembly comprises a gear (23) connected to the cushion driving device (22), and a toothed plate (24) arranged on the support frame (21), and the gear (23) is meshed and connected with teeth (241) on the toothed plate (24).

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