Vehicle seats

Abstract

The utility model provides a vehicle seat, which includes a cushion frame and two support frames arranged at intervals; a cushion driving device is provided on the cushion frame; the two support frames are rotatably connected to the left and right sides of the front end of the cushion frame, a first angle adjuster is provided between the support frame on at least one side and the corresponding side of the cushion frame, the first angle adjuster is provided with a first synchronization rod, and the synchronization rod is transmission-connected to the cushion driving device; when the floor lock is unlocked, the cushion driving device drives the synchronization rod to rotate, and drives the cushion frame to rotate between the cushion initial position and the cushion folding position relative to the support frame. The vehicle seat of the utility model is conducive to improving the degree of automation of the flipping of the cushion frame, so that the flipping operation of the cushion frame is time-saving and labor-saving, and has high reliability and good use effect.

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 backrest unlocking button first and then the floor lock unlocking button. In addition, the flipping operation of the seat cushion is time-consuming and laborious, 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 improve the automation degree of flipping of the seat cushion frame, so that the flipping operation of the seat cushion frame is time-saving and labor-saving.

[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 seat cushion frame and two support frames arranged at intervals;

[0006] The seat cushion frame is provided with a seat cushion driving device;

[0007] The two support frames are rotatably connected to the left and right sides of the front end of the cushion frame, and a first angle adjuster is provided between at least one of the support frames and the corresponding side of the cushion frame. The first angle adjuster is provided with a first synchronization rod, and the synchronization rod is transmission-connected to the cushion drive device;

[0008] When the floor lock is unlocked, the seat cushion driving device drives the synchronous rod to rotate, and drives the seat cushion frame to rotate between the seat cushion initial position and the seat cushion folding position relative to the support frame.

[0009] Furthermore, a limiting structure for limiting the rotation angle of the seat cushion frame is provided between the seat cushion frame and at least one of the support frames.

[0010] Furthermore, the limiting structure includes a limiting member arranged on the seat cushion frame, and a first limiting end arranged on the support frame; when the seat cushion is in the initial position, the floor lock abuts against the locking rod on the vehicle floor, and when the seat cushion is in the folded position, the limiting member abuts against the first limiting end.

[0011] Furthermore, it also includes a backrest frame, and a floor lock unlocking assembly arranged between the backrest frame and the seat cushion frame; the backrest frame is connected to the seat cushion frame through a lower connecting plate, and a second angle adjuster is arranged between the backrest frame and the lower connecting plate, and when the second angle adjuster is unlocked, the backrest frame can rotate around the center of the angle adjuster; the floor lock unlocking assembly is connected to the backrest frame and the pull wire of the floor lock, and the floor lock assembly can rotate with the backrest frame, pull the pull wire and unlock the floor lock.

[0012] Furthermore, a backrest driving device is provided on the backrest frame, and a synchronization rod is provided on the recliner. 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 recliner.

[0013] Furthermore, 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 initial position of the backrest and the folded position of the backrest, the follower is connected to the pull wire of the floor lock, and the follower can bear the rotation of the driving member, pull the pull wire and unlock the floor lock.

[0014] Furthermore, a mounting base and a wire-pulling fixing seat are provided on the lower connecting plate; the driving member and the driven member are rotatably provided on the mounting base, and the wire-pulling seat of the wire-pulling is fixed on the wire-pulling fixing seat.

[0015] 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.

[0016] Furthermore, the driving member and the driven member are rotatably arranged on the mounting seat through a connecting member penetrating the driving member and the driven member.

[0017] Furthermore, the lower connecting plate is provided with a second limit end and a third limit end for limiting the rotation angle of the toggle portion. In the initial position of the backrest, the toggle portion abuts against the second limit end, and in the folded position of the backrest, the toggle portion abuts against the third limit end.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] The vehicle seat described in the utility model, through the seat cushion driving device, the first angle adjuster and the first synchronization rod arranged on the seat cushion frame, can drive the synchronization rod to rotate through the seat cushion driving device when the floor lock is unlocked, and after unlocking the first angle adjuster, the seat cushion frame can be rotated between the seat cushion initial position and the seat cushion folding position relative to the support frame, thereby facilitating the automation degree of flipping of the seat cushion frame, making the flipping operation of the seat cushion frame time-saving and labor-saving, and having high reliability and good use effect.

[0020] In addition, the setting of the limiting structure is conducive to limiting the rotation angle of the seat cushion frame, and can make the seat cushion frame better maintain the seat cushion initial position and the seat cushion folding position. The limiting structure adopts the abutment cooperation of the limiting member and the first limiting end, which has a simple structure, is easy to design and implement, and can ensure a good limiting effect. The floor lock unlocking assembly set between the backrest frame and the seat cushion frame can utilize the unlocking of the recliner to make the backrest frame rotate relative to the seat cushion frame, and pull the pull wire with the help of the floor lock unlocking assembly to unlock the floor lock, thereby realizing the linkage unlocking of the floor lock and the recliner, and facilitating the forward flipping and folding of the seat cushion, and reducing the steps of seat flipping.

[0021] Secondly, the setting of the backrest drive device and the synchronization rod can improve the automation degree 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 set up a separate floor lock drive device. The floor lock unlocking assembly includes a toggle part, a driving member and a follower. When the recliner is unlocked, the backrest frame rotates relative to the seat cushion frame. At this time, the toggle part on the backrest frame is used to push the driving member to rotate between the backrest initial position and the backrest folding position. The follower receives the rotation of the driving member to pull the pull wire, so that the floor lock is unlocked. It has the advantages of ingenious design, compact structure, and high reliability.

[0022] In addition, the setting 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 driver and the follower are rotatably arranged on the mounting base using a connecting member that runs through the two, which allows the driver and the follower to be rotatably arranged on the mounting base with the same rotation center, so that the structural arrangement is more compact and occupies less space. The second limit end and the third limit end arranged on the lower connecting plate can effectively limit the rotation angle of the toggle part, and enable the backrest frame to better maintain the initial position of the backrest and the folded position of the backrest after flipping forward. 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 partial enlarged view of the backrest frame described in the embodiment of the utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the backrest frame according to an embodiment of the utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the seat cushion frame according to an embodiment of the utility model;

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

[0031] Description of reference numerals:

[0032] 1. Backrest frame; 2. Seat frame; 3. Floor lock unlocking assembly; 4. Pull wire; 5. Floor lock; 101. Toggle part; 11. Lower connecting plate; 12. Backrest driving device; 13. Second synchronization rod; 14. Second angle adjuster; 1101. Second limit end; 1102. Third limit end; 111. Mounting base; 1111. Main body; 1112. Fixed support foot; 21. Support frame; 201. Limit member; 211. First limit end; 22. Seat drive device; 23. First synchronization rod; 24. First angle adjuster; 31. Driving member; 32. Follower; 33. Rivet; 34. Elastic reset member; 311. Toggle slot; 41. Cable holder. DETAILED DESCRIPTION

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0038] The present embodiment relates to a vehicle seat, which is beneficial to improving the degree of automation of flipping the seat cushion frame 2, so that the flipping operation of the seat cushion frame 2 is time-saving and labor-saving.

[0039] In terms of overall structure, Figure 1 and Figure 2 Combined with Figure 5 As shown, the vehicle seat of this embodiment includes a cushion frame 2 and two support frames 21 arranged at intervals. Among them, a cushion driving device 22 is provided on the cushion frame 2. The two support frames 21 are rotatably connected to the left and right sides of the front end of the cushion frame 2, and a first angle adjuster 24 is provided between at least one side of the support frame 21 and the corresponding side of the cushion frame 2. The first angle adjuster 24 is provided with a first synchronization rod 23, and the synchronization rod is transmission-connected with the cushion driving device 22. In addition, when the floor lock 5 is unlocked, the cushion driving device 22 drives the synchronization rod to rotate, and drives the cushion frame 2 to rotate between the cushion initial position and the cushion folding position relative to the support frame 21.

[0040] At this time, as in the above structure, through the seat cushion driving device 22 arranged on the seat cushion frame 2, and the first angle adjuster 24 and the first synchronization rod 23 arranged, when the floor lock 5 is unlocked, the seat cushion driving device 22 can drive the synchronization rod to rotate, and after unlocking the first angle adjuster 24, the seat cushion frame 2 can be rotated between the seat cushion initial position and the seat cushion folding position relative to the support frame 21, which can be helpful to realize the degree of automation of flipping the seat cushion frame 2, so that the flipping operation of the seat cushion frame 2 is time-saving, labor-saving, and has higher reliability.

[0041] It should be noted that, in this embodiment, the seat cushion frame 2 is connected to the vehicle floor through two support frames 21 on the left and right sides of the front end and two floor locks 5 on the left and right sides of the rear end. Specifically, the two support frames 21 are fixedly connected to the vehicle floor, and a locking rod is fixedly provided on the vehicle floor, and the two floor locks 5 can be locked on the locking rod. In this way, the seat cushion frame 2 is fixed to the vehicle floor, and when the floor lock 5 is unlocked, the seat cushion frame 2 can rotate relative to the support frames 21, that is, it rotates from the initial position of the seat cushion when the seat cushion is used to the folded position of the seat cushion when the seat cushion is stored.

[0042] It should also be noted that the seat drive device 22 of this embodiment preferably uses a motor, which has mature technology and high reliability. In addition, in this embodiment, the seat drive device 22 can be set as one or two, and when it is set as two, it can provide a larger torque for the flipping of the seat frame 2, further ensuring the reliability of use.

[0043] Based on the above overall structure, for details, continue to refer to Figure 1 , Figure 2 and Figure 5 As shown, in this embodiment, a limiting structure for limiting the rotation angle of the seat cushion frame 2 is provided between the seat cushion frame 2 and at least one of the support frames 21. The limiting structure can effectively limit the rotation angle of the seat cushion frame 2 and can keep the seat cushion frame 2 in the initial position and the folded position of the seat cushion.

[0044] Specifically, the limiting structure includes a limiting member 201 provided on the seat cushion frame 2, and a first limiting end 211 provided on the support frame 21. When the seat cushion is in the initial position, the floor lock 5 abuts against the lock rod on the vehicle floor, and when the seat cushion is in the folded position, the limiting member 201 abuts against the first limiting end 211. In this embodiment, the limiting structure adopts the abutment cooperation of the limiting member 201 and the first limiting end 211, which has a simple structure, is easy to design and implement, and can ensure a good limiting effect.

[0045] It should be noted that the limiting structure can be set only between the seat cushion frame 2 and the left support frame 21, or only between the seat cushion frame 2 and the right support frame 21, or both between the seat cushion frame 2 and the left support frame 21 and between the seat cushion frame 2 and the right support frame 21, which is all feasible.

[0046] The vehicle seat of this embodiment includes, in addition to the seat cushion frame 2, a backrest frame 1, and a floor lock unlocking assembly 3 disposed 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, and a second recliner 14 is disposed between the backrest frame 1 and the lower connecting plate 11. When the second recliner 14 is unlocked, the backrest frame 1 can rotate around the center of the recliner. The floor lock unlocking assembly 3 is connected to the backrest frame 1 and the pull wire 4 of the floor lock 5, and the floor lock assembly can rotate with the backrest frame 1, pull the pull wire 4 and unlock the floor lock 5.

[0047] At this time, the floor lock unlocking assembly 3 arranged between the backrest frame 1 and the seat cushion frame 2 can utilize the unlocking of the recliner to make the backrest frame 1 rotate relative to the seat cushion frame 2, and pull the pull wire 4 with the help of the floor lock unlocking assembly 3 to unlock the floor lock 5, thereby realizing the linkage unlocking of the floor lock 5 and the recliner, and facilitating the forward flipping and folding of the seat cushion, thereby reducing the steps of seat flipping.

[0048] For specific structure, see Figures 1 to 4 , and combined with Figure 6 and Figure 7 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 is arranged between the backrest frame 1 and the lower connecting plate 11. When the recliner is locked, the backrest frame 1 and the seat cushion frame 2 are relatively fixed. When the recliner is unlocked, the backrest frame 1 can rotate around the center of the recliner, and 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 of this embodiment can adopt an existing mature product, and this embodiment does not introduce this structure in detail.

[0049] As a preferred embodiment, in this embodiment, a backrest drive device 12 is provided on the backrest frame 1, and a synchronization rod is provided on the recliner. The synchronization rod is connected to the backrest drive device 12 by transmission, and the synchronization rod receives the drive of the backrest drive device 12 to rotate, so as to unlock the recliner. By providing the backrest drive device 12 and the synchronization rod, the automation degree of unlocking and locking the recliner can be improved, and the same backrest drive device 12 is used, and the recliner and the floor lock unlocking assembly 3 are matched, and the floor lock 5 can also be unlocked, without the need to separately provide a drive device for the floor lock 5. Among them, the backrest drive device 1212 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 11 rotates around the central axis of the recliner 14, and the toggle part 101101 pushes the driving member 3131 to rotate, and the rotation of the driving member 3131 drives the driven member 32 to rotate, the pull wire 44 is pulled out, and the floor lock 5 is unlocked.

[0050] Continue to view Figures 1 to 4 ,as well as Figure 6 and Figure 7 The floor lock unlocking assembly 3 of this embodiment includes a toggle portion 101 provided on the backrest frame 1, and a driving member 31 and a driven member 32 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 the backrest initial position and the backrest folding position. The driven member 32 is connected to the pull wire 4 of the floor lock 5, and the driven member 32 can receive the rotation of the driving member 31, pull the pull wire 4 and unlock the floor lock 5. In this way, when the recliner is unlocked, the backrest frame 1 rotates relative to the cushion frame 2. At this time, the toggle portion 101 on the backrest frame 1 pushes the driving member 31 to rotate between the backrest initial position and the backrest folding position. The driven member 32 receives the rotation of the driving member 31 to pull the pull wire 4, so that the floor lock 5 is unlocked. It has the advantages of ingenious design, compact structure and high reliability.

[0051] 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.

[0052] In this embodiment, a mounting base 111 and a cable 4 fixing seat are also provided on the lower connecting plate 11. The driving member 31 and the driven member 32 are rotatably provided on the mounting base 111, and the cable 4 seat of the cable 4 is fixed on the cable 4 fixing seat. At this time, the setting of the mounting base 111 can provide a layout space for the driving member 31, the driven member 32 and the cable 4 seat, making the structure compact and easy to install.

[0053] In a specific implementation, the mounting base 111 is disposed 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 1111 carrying the driving member 31 and the driven member 32, and a fixed leg 1112 bent along the main body 1111 toward the side where the lower connecting plate 11 is located, and the fixed leg 1112 is used to be fixedly connected to the lower connecting plate 11,

[0054] Still viewing Figures 1 to 4 ,as well as Figure 6 and Figure 7 As shown, in this embodiment, an L-shaped bending plate is provided on one side of the backrest frame 1, and the L-shaped bending 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 adopts 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 11.

[0055] 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 and shape. In terms of specific structure, the driving member 31 is roughly in a Y-shaped structure, and has a toggle groove 311 that abuts against the toggle portion 101, that is, the above-mentioned cross plate is located in the toggle groove 311 and abuts against the toggle groove 311. The follower 32 of this embodiment also preferably adopts a plate-like structure, and the follower 32 is provided with a first ear bent toward the inner side of the backrest frame 1, and a second ear bent toward the outer side of the backrest. The first ear is used to fix the end of the pull wire 4, and the second ear is used to fix the elastic reset member 34 described below.

[0056] In order to facilitate the reset of the follower 32 after rotation, and to ensure that the pull wire 4 is reliably retracted and the floor lock 5 is reliably locked, in this embodiment, an elastic reset member 34 is provided between the follower 32 and the mounting base 111. The elastic reset member 34 is compressed and stores energy when the driving member 31 pushes the follower 32 to rotate. When the driving member 31 releases the push from the follower 32, the elastic reset member 34 releases energy and drives the follower 32 to reset. At this time, the follower 32 is reset, and the reset spring on the floor lock 5 drives the pull wire 4 to reset, so that the floor lock 5 can be switched from the unlocked state to the locked state.

[0057] In addition, in this embodiment, the driving member 31 and the driven member 32 are rotatably arranged on the mounting seat through a connecting member that penetrates the driving member 31 and the driven member 32. In this way, the driving member 31 and the driven member 32 can be rotatably arranged on the mounting base 111 with the same rotation center, and the structural arrangement is more compact and occupies less space. In specific implementation, the connecting member preferably adopts a rivet 33 that connects the driving member 31 and the driven member 32, and the driving member 31 and the driven member 32 are installed on the mounting base 111 through the rivet 33, and there is no relative rotation between the driving member 31 and the driven member 32, and the two can rotate synchronously relative to the mounting base 111.

[0058] It should be noted that, in addition to the above-mentioned structural form, the driving member 31 and the driven member 32 can be designed as an integrated structure, so that the whole formed by the driving member 31 and the driven member 32 can be rotatably arranged on the mounting base 111, which is also feasible. 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.

[0059] As a preferred embodiment, in this embodiment, the lower connecting plate 11 is also provided with a second limiting end 1101 and a third 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 second limiting end 1101, and in the folded position of the backrest, the toggle portion 101 abuts against the third limiting end 1102. The second limiting end 1101 and the third 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.

[0060] When the vehicle seat of this embodiment is used, the backrest driving device 12 drives the second synchronization rod 13 to rotate, the second angle adjuster 14 is unlocked, and the backrest frame 1 rotates around the central axis of the second angle adjuster 14. At this time, the toggle part 101 on the backrest frame 1 pushes the driving member 31 to rotate, and the driving member 31 rotates the driving member to rotate around the center of the connecting member and pulls the pull wire 4 to unlock the floor lock 5. Moreover, under the drive of the backrest driving device 12, the toggle part 101 rotates from the second limit end 1101 to the third limit end 1102, so that the backrest frame 1 flips forward and forms a state of overlapping with the seat cushion frame 2, that is, the backrest is in the backrest folding position.

[0061] When the floor lock 5 is unlocked, the backrest driving device 12 is driven to rotate the first synchronization rod 23, unlock the first angle adjuster 24, and rotate the seat cushion frame 2 around the axis of the hinge position of the seat cushion frame 2 and the support frame 21, so that the seat cushion frame 2 and the folded backrest frame 1 are flipped forward from the initial position of the seat cushion frame 2 to the folded position of the seat cushion frame 2.

[0062] When the seat cushion folding position needs to be switched to the seat cushion initial position, the backrest driving device 12 is driven to make the first synchronization rod 23 rotate in the opposite direction, that is, the seat cushion frame 2 rotates in the opposite direction, so that the seat cushion folding position can be switched to the seat cushion initial position.

[0063] 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 second synchronization rod 13 to rotate in the opposite direction, and the backrest frame 1 rotates in the opposite direction around the center of the second angle adjuster 14. At this time, the toggle portion 101 on the backrest frame 1 pushes the driving member 31 to rotate in the opposite direction. At the same time, the follower 32 is reset under the action of the elastic reset member 34, 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.

[0064] 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 seat cushion frame (2) and two support frames (21) arranged at intervals; The seat cushion frame (2) is provided with a seat cushion driving device (22); The two support frames (21) are rotatably connected to the left and right sides of the front end of the seat cushion frame (2); a first angle adjuster (24) is provided between at least one side of the support frame (21) and the corresponding side of the seat cushion frame (2); a first synchronization rod (23) is provided on the first angle adjuster (24); and the synchronization rod is transmission-connected to the seat cushion drive device (22); When the floor lock (5) is unlocked, the seat cushion driving device (22) drives the synchronization rod to rotate, and drives the seat cushion frame (2) to rotate between the seat cushion initial position and the seat cushion folding position relative to the support frame (21).

2. The vehicle seat according to claim 1, characterized in that: A limiting structure for limiting the rotation angle of the seat cushion frame (2) is provided between the seat cushion frame (2) and at least one of the support frames (21).

3. The vehicle seat according to claim 2, characterized in that: The limiting structure comprises a limiting member (201) provided on the seat cushion frame (2), and a first limiting end (211) provided on the support frame (21); When the seat cushion is in the initial position, the floor lock (5) abuts against a lock rod on the vehicle floor, and when the seat cushion is in the folded position, the limiting member (201) abuts against the first limiting end (211).

4. The vehicle seat according to any one of claims 1 to 3, characterized in that: It also includes a backrest frame (1), 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 second angle adjuster (14) is provided between the backrest frame (1) and the lower connecting plate (11); when the second angle adjuster (14) is unlocked, the backrest frame (1) can rotate around the center of the angle adjuster; The floor lock unlocking assembly (3) is connected to the backrest frame (1) and the pull wire (4) of the floor lock (5), and the floor lock assembly can rotate with the backrest frame (1), pull the pull wire (4) and unlock the floor lock (5).

5. The vehicle seat according to claim 4, characterized in that: The backrest frame (1) is provided with a backrest drive device (12), and the recliner is provided with a synchronization rod, the synchronization rod is transmission-connected to the backrest drive device (12), and the synchronization rod is driven to rotate by the backrest drive device (12) to unlock the recliner.

6. The vehicle seat according to claim 4, characterized in that: 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 the floor lock, and the driven member can receive the rotation of the driving member (31), pull the pull wire (4) and unlock the floor lock (5).

7. The vehicle seat according to claim 6, characterized in that: The lower connecting plate (11) is provided with a mounting base (111) and a pull wire (4) fixing base; 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 wire pull (4) fixing seat.

8. The vehicle seat according to claim 7, characterized in that: An elastic reset member (34) is provided between the driven member and the mounting base (111); the elastic reset member (34) is compressed to store energy when the driving member (31) pushes the driven member to rotate; and when the driving member (31) releases the pushing force from the driven member, the elastic reset member (34) releases the energy and drives the driven member to reset.

9. The vehicle seat according to claim 7, characterized in that: The driving member (31) and the driven member are rotatably arranged on the mounting base (111) via a connecting member penetrating the driving member (31) and the driven member.

10. The vehicle seat according to claim 6, characterized in that: The lower connecting plate (11) is provided with a second limiting end (1101) and a third 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 second limiting end (1101); in the folded position of the backrest, the toggle portion (101) abuts against the third limiting end (1102).

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