Seat structure and automobile

Abstract

The utility model discloses a seat structure and car relates to seat technical field, wherein, seat structure includes framework mechanism and turnover mechanism, and framework mechanism includes cushion framework and backrest framework, and backrest framework includes first connecting plate and first framework body, and one end of first connecting plate is through first angle regulator and is rotatively connected with first framework body, and the other end of first connecting plate is connected with cushion framework, and turnover mechanism includes fixed base, connecting seat and rotating shaft, and fixed base is used to install in the car body bottom plate, and connecting seat is connected with first connecting plate, and rotating shaft rotatory mounting is in fixed base and connecting seat, and rotating shaft rotates to be used for drive framework mechanism to place in the luggage compartment groove of car body bottom plate, and the rotation of backrest framework is realized through first angle regulator, and the backrest angle can be adjusted flexibly, and the riding adaptability is improved, and rotating shaft drives framework mechanism whole turnover and places in the luggage compartment groove, reduces the occupation of framework mechanism to back compartment space, makes the space of back compartment maximization utilization.

Description

Technical Field

[0001] This utility model relates to the field of seat technology, and in particular to a seat structure and automobile. Background Technology

[0002] With the improvement of living standards, the space requirements for family cars have greatly increased, and large-space models have become the first choice for multi-person users. Currently, the seats in large-space models are mostly independent seats in the middle row that can be adjusted forward and backward, and the trunk space is often designed with a sunken luggage compartment. To maximize the trunk space, the rear seats are usually designed with backrests that can be folded forward.

[0003] However, after the seat back is folded forward, it is impossible to make the back of the seat back level with the plane of the trunk. The back of the seat back is always at a certain height and angle to the horizontal plane, so the trunk space cannot be maximized.

[0004] Therefore, it is necessary to provide a new seat structure and automobile to solve the above-mentioned technical problems. Utility Model Content

[0005] The main purpose of this utility model is to propose a seat structure and automobile, which aims to improve the technical problem in the prior art that the rear seat backrest cannot be horizontal with the rear cargo plane after being folded forward, resulting in the failure to maximize the utilization of the rear cargo space.

[0006] To achieve the above objectives, according to one aspect of the present invention, a seat structure is provided, comprising: The frame mechanism includes a seat cushion frame and a backrest frame. The backrest frame includes a first connecting plate and a first frame body. One end of the first connecting plate is rotatably connected to the first frame body via a first angle adjuster, and the other end of the first connecting plate is connected to the seat cushion frame. The flipping mechanism includes a fixed seat, a connecting seat, and a rotating shaft. The fixed seat is used to install on the vehicle floor, the connecting seat is connected to the first connecting plate, one end of the rotating shaft is connected to the connecting seat, and the other end of the rotating shaft is rotatably installed on the fixed seat. The rotating shaft rotates to drive the frame mechanism to be placed in the luggage compartment of the vehicle floor.

[0007] In one embodiment, the flipping mechanism further includes a plurality of first torsion springs, the connecting seat forms two spaced-apart partitions, one end of the rotating shaft is connected to the connecting seat, the other end of the rotating shaft is rotatably mounted on the two partitions, the plurality of first torsion springs are sequentially sleeved on the rotating shaft, a first connecting rod is provided between the two partitions, one end of the plurality of first torsion springs is connected to the rotating shaft, and the other end of the plurality of first torsion springs is connected to the first connecting rod.

[0008] In one embodiment, the flipping mechanism further includes a second torsion spring, the first torsion spring and the second torsion spring having opposite directions of rotation, a plurality of first torsion springs and second torsion springs being sequentially sleeved on the rotating shaft, and a second connecting rod being provided between the two spacers, the first connecting rod and the second connecting rod being spaced apart in the horizontal direction, one end of each second torsion spring being connected to the rotating shaft, and the other end of each second torsion spring being connected to the second connecting rod.

[0009] In one embodiment, the flipping mechanism further includes a plurality of felt cloths, with the felt cloths disposed between adjacent second torsion springs and between the second torsion springs and the first torsion springs.

[0010] In one embodiment, the seat structure further includes a floor lock mechanism, which includes a floor lock, an unlocking handle, and a pull rope. The floor lock is rotatably mounted on the front end of the seat cushion frame, and the unlocking handle is mounted on the rear end of the seat cushion frame. The floor lock includes a hook and a lock plate, the lock plate forming a lock groove, and the hook being telescopically mounted in the lock groove for connecting to a fixing rod on the vehicle floor. The unlocking handle includes a fixing member and a handle rotatably mounted on the fixing member. The handle is connected to one end of the pull rope, and the other end of the pull rope is connected to the hook.

[0011] In one embodiment, the lock plate has an arc-shaped waist hole, and the ground lock mechanism further includes a guide rod that is slidably installed in the arc-shaped waist hole and is mounted on the hook.

[0012] In one embodiment, the number of floor locks is at least two, and the two floor locks are spaced apart along the length of the cushion frame. The number of pull cords is the same as the number of floor locks, and the pull cords are arranged in a one-to-one correspondence with the floor locks.

[0013] In one embodiment, the floor lock mechanism further includes a plastic cover rotatably mounted on the front end of the seat cushion frame, the plastic cover being used to cover the floor lock.

[0014] In one embodiment, the backrest frame includes a second frame body, a second connecting plate, and a third connecting plate. One end of the second connecting plate is rotatably connected to the second frame body via a first angle adjuster, and the other end of the second connecting plate is connected to the seat cushion frame. One end of the third connecting plate is rotatably connected to the first frame body and the second frame body via a second angle adjuster, and the other end of the third connecting plate is connected to the seat cushion frame.

[0015] According to another aspect of the present invention, the present invention also provides an automobile, including a vehicle body floor and the aforementioned seat structure, wherein the vehicle body floor forms the luggage compartment slot for accommodating the frame structure.

[0016] In the above scheme, the seat structure includes a frame mechanism and a flipping mechanism. The frame mechanism includes a seat cushion frame and a backrest frame. The backrest frame includes a first connecting plate and a first frame body. One end of the first connecting plate is rotatably connected to the first frame body through a first angle adjuster, and the other end of the first connecting plate is connected to the seat cushion frame. The flipping mechanism includes a fixed seat, a connecting seat, and a rotating shaft. The fixed seat is used to be installed on the vehicle floor. The connecting seat is connected to the first connecting plate. One end of the rotating shaft is connected to the connecting seat, and the other end of the rotating shaft is rotatably installed on the fixed seat. The rotating shaft rotates to drive the frame mechanism to be placed in the trunk compartment of the vehicle floor. Specifically, when a large trunk space is needed, the first frame of the backrest frame rotates via a first angle adjuster, causing it to rotate towards the seat cushion frame. The first frame folds forward and is then pushed to rotate towards the trunk. Since the first connecting plate in the backrest frame is connected to the connecting seat, and the connecting seat is connected to the rotating shaft, this pushes the connecting seat and the rotating shaft to rotate, thus completely lowering the frame mechanism into the trunk compartment of the vehicle floor. The frame mechanism is completely submerged in the trunk compartment, thus not occupying any trunk space. In this invention, the first angle adjuster enables the rotational connection of the backrest frame, allowing for flexible adjustment of the backrest angle and improved seating comfort. The rotating shaft drives the frame mechanism to flip over and place it in the trunk compartment, reducing the space occupied by the frame mechanism and indirectly improving space utilization. This maximizes the use of trunk space. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 A schematic diagram of an embodiment of the seat structure provided by this utility model; Figure 2 A folding schematic diagram of an embodiment of the skeleton mechanism provided by this utility model; Figure 3 A schematic diagram of the flipping of an embodiment of the seat structure provided by this utility model; Figure 4A schematic diagram of a structure of an embodiment of the backrest frame provided by this utility model; Figure 5 A schematic diagram of the structure of an embodiment of the seat cushion frame provided by this utility model; Figure 6 A schematic diagram of the structure of an embodiment of the lock plate provided by this utility model; Figure 7 A schematic diagram of the structure of an embodiment of the connector provided by this utility model from one perspective; Figure 8 This is a structural schematic diagram from another perspective of an embodiment of the connector provided by this utility model.

[0019] Explanation of icon numbers: 100. Seat structure; 1. Frame mechanism; 11. Seat cushion frame; 12. Backrest frame; 121. First connecting plate; 122. First frame body; 123. Second frame body; 124. Second connecting plate; 125. Third connecting plate; 2. Flipping mechanism; 3. First angle adjuster; 21. Fixed seat; 22. Connecting seat; 221. Partition plate; 221a. First connecting rod; 221b. Second connecting rod; 2 3. Rotating shaft; 24. First torsion spring; 25. Second torsion spring; 26. Felt cloth; 41. Floor lock; 411. Hook; 412. Lock plate; 412a. Lock groove; 412b. Arc-shaped waist hole; 42. Unlocking handle; 421. Fixing piece; 422. Handle; 43. Pull rope; 44. Plastic cover; 45. Guide rod; 5. Second angle adjuster; 101. Vehicle body floor; 101a. Luggage compartment; 4. Floor lock mechanism.

[0020] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0022] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0023] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0024] To achieve the above objectives, please refer to Figures 1 to 3 According to one aspect of the present invention, a seat structure 100 is provided, including a frame mechanism 1 and a flipping mechanism 2. The frame mechanism 1 includes a seat cushion frame 11 and a backrest frame 12. The backrest frame 12 includes a first connecting plate 121 and a first frame body 122. One end of the first connecting plate 121 is rotatably connected to the first frame body 122 through a first angle adjuster 3, and the other end of the first connecting plate 121 is connected to the seat cushion frame 11. The flipping mechanism 2 includes a fixed seat 21, a connecting seat 22 and a rotating shaft 23. The fixed seat 21 is used to be installed on the vehicle floor 101. The connecting seat 22 is connected to the first connecting plate 121. The rotating shaft 23 is rotatably installed on the fixed seat 21 and the connecting seat 22. The rotating shaft 23 rotates to drive the frame mechanism 1 to be placed in the luggage compartment 101a of the vehicle floor 101. Specifically, when a large trunk space is needed, the first frame body 122 of the backrest frame 12 is rotated by the first angle adjuster 3, causing the first frame body 122 of the backrest frame 12 to rotate toward the seat cushion frame 11. The first frame body 122 is folded forward and then pushed to rotate the backrest frame 12 toward the luggage compartment. Since the first connecting plate 121 in the backrest frame 12 is connected to the connecting seat 22, the connecting seat 22 is pushed to rotate around the rotation axis 23. In this way, the frame mechanism 1 is completely laid down into the luggage compartment slot 101a of the vehicle floor 101. Thus, the frame mechanism 1 is completely submerged in the luggage compartment slot 101a, and the frame mechanism 1 does not occupy the trunk space at all. In this embodiment, the rotation connection of the backrest frame 12 is achieved by the first angle adjuster 3, which can flexibly adjust the backrest angle and improve the riding adaptability. The frame mechanism 1 is driven to flip over and be placed in the luggage compartment slot 101a by the rotation axis 23, which reduces the occupation of the trunk space by the frame mechanism 1 and indirectly improves the space utilization rate. In this way, the trunk space can be maximized.

[0025] Furthermore, the seat structure 100 also includes a drive motor, which is mounted on the bottom of the vehicle body. The output shaft of the drive motor is connected to the rotating shaft 23 via a coupling. In this way, when the seat structure 100 needs to be flipped, the drive motor can be started to flip the seat structure 100 without manual pushing, thus improving the automation of the seat structure 100.

[0026] Please see Figure 7 and Figure 8In one embodiment, the flipping mechanism 2 further includes a plurality of first torsion springs 24, the connecting seat 22 forms two spacer plates 221 spaced apart, one end of the rotating shaft 23 is connected to the connecting seat 22, and the other end of the rotating shaft 23 is rotatably mounted on the two spacer plates 221. The plurality of first torsion springs 24 are sequentially sleeved on the rotating shaft 23, and a first connecting rod 221a is provided between the two spacer plates 221. One end of each of the plurality of first torsion springs 24 is connected to the rotating shaft 23, and the other end of each of the plurality of first torsion springs 24 is connected to the first connecting rod 221a. When the large trunk space is needed, the first frame body 122 of the backrest frame 12 rotates via the first angle adjuster 3, causing the first frame body 122 of the backrest frame 12 to rotate toward the seat cushion frame 11. The first frame body 122 folds forward, and then pushes the backrest frame 12 to rotate toward the luggage compartment. Since the first connecting plate 121 in the backrest frame 12 is connected to the connecting seat 22, and the connecting seat 22 is connected to the rotating shaft 23, this will push the connecting seat 22 and the rotating shaft 23 to rotate. A first torsion spring 24 is sleeved on the rotating shaft 23. One end of the first torsion spring 24 is fixedly connected to the rotating shaft 23, and the other end of the first torsion spring 24 is connected to the connecting seat 22 via the first connecting rod 221a. At this time, the rotating shaft 23 and the connecting seat 22 remain relatively stationary, and the first torsion spring 24 is in its natural state. When the rotating shaft 23 rotates, one end of the first torsion spring 24 rotates synchronously with the rotating shaft 23, while the other end is fixed to the connecting seat 22 via the first connecting rod 221a. The rotation of the rotating shaft 23 causes a relative angular displacement between the two ends of the torsion spring, resulting in elastic torsional deformation of the first torsion spring 24, storing elastic potential energy. The deformed first torsion spring 24 generates an elastic force in the opposite direction of the rotation of the rotating shaft 23. This force acts on the rotating shaft 23 and the first connecting rod 221a respectively through the two ends of the torsion spring. The first connecting rod 221a is part of the fixed seat 21. Since the connecting seat 22 is connected to the first connecting plate 121, the rotation... Shaft 23 is connected to fixed seat 21. The elastic force directly drives the rotating shaft 23 to rotate continuously, assisting the frame mechanism 1 to flip backward and finally be placed in the trunk compartment 101a. In this way, the frame mechanism 1 is completely submerged in the trunk compartment 101a, and the frame mechanism 1 does not occupy the space of the trunk at all. The elastic deformation of the first torsion spring 24 generates an elastic force to assist the rotation, which can reduce the external force required to manually flip the seat and improve the ease of operation. The elastic force of the torsion spring changes dynamically with the rotation angle, which can buffer the starting resistance at the beginning of the flip and the impact later, and avoid the frame mechanism 1 from shaking violently due to gravity or inertia when flipping. If the external force is interrupted during the flipping process, the elastic force of the first torsion spring 24 can drive the rotating shaft 23 to partially return to its original position, preventing the frame mechanism 1 from getting stuck in a non-target position.

[0027] Please see Figure 7 and Figure 8In one embodiment, the flipping mechanism 2 further includes a second torsion spring 25, and the first torsion spring 24 and the second torsion spring 25 rotate in opposite directions. Multiple first torsion springs 24 and second torsion springs 25 are sequentially sleeved on the rotating shaft 23. A second connecting rod 221b is also provided between the two spacers 221. The first connecting rod 221a and the second connecting rod 221b are spaced apart in the horizontal direction. One end of each second torsion spring 25 is connected to the rotating shaft 23, and the other end of each second torsion spring 25 is connected to the second connecting rod 221b. When a large cargo space is needed, the first frame body 122 of the backrest frame 12 is rotated by the first angle adjuster 3, so that the first frame body 122 of the backrest frame 12 rotates toward the seat cushion frame 11. The first frame body 122 is folded forward and then pushed to rotate the backrest frame 12 toward the luggage compartment. Since the first connecting plate 121 in the backrest frame 12 is connected to the connecting seat 22, and the connecting seat 22 is connected to the rotating shaft 23, the connecting seat 22 and the rotating shaft 23 will be pushed to rotate. A first torsion spring 24 is sleeved on the rotating shaft 23. One end of the first torsion spring 24 is fixedly connected to the rotating shaft 23, and the other end of the first torsion spring 24 is connected to the connecting seat 22 through the first connecting rod 221a. At this time, the rotating shaft 23 and the connecting seat 22 remain relatively stationary, the first torsion spring 24 is in its natural state, and the second torsion spring 25 is sleeved on the rotating shaft 23. Since the second torsion spring 25 rotates in the opposite direction to the first torsion spring 24, and one end of it is fixed to the rotating shaft 23, the other end is fixed to the connecting seat 22 through the second connecting rod 221b.When the rotating shaft 23 rotates, one end of the first torsion spring 24 rotates synchronously with the rotating shaft 23, while the other end is fixed to the connecting seat 22 via the first connecting rod 221a. The rotation of the rotating shaft 23 causes a relative angular displacement at both ends of the torsion spring, resulting in elastic torsional deformation of the first torsion spring 24, storing elastic potential energy. The deformed first torsion spring 24 generates an elastic force in the opposite direction of the rotation of the rotating shaft 23. This force acts on the rotating shaft 23 and the first connecting rod 221a respectively through both ends of the torsion spring. The first connecting rod 221a is part of the fixed seat 21. Since the connecting seat 22 is connected to the first connecting plate 121 and the rotating shaft 23 is connected to the fixed seat 21, the elastic force directly drives the rotating shaft 23 to rotate continuously. The auxiliary frame mechanism 1 flips backward and is finally placed in the luggage compartment 101a. The two ends of the second torsion spring 25 also generate a relative angular displacement, but because the direction of rotation is opposite to that of the first torsion spring 24, the second torsion spring 25... The deformation direction of spring 25 is consistent with its natural direction of rotation. It does not generate an elastic force to assist in the backward flipping. It only passively deforms with the rotating shaft 23. The frame mechanism 1 is completely submerged in the trunk compartment 101a, so the frame mechanism 1 does not occupy the space of the trunk at all. When the frame mechanism 1 returns to its original position, the backrest frame 12 is pushed out of the trunk compartment 101a, which pushes the connecting seat 22 and the rotating shaft 23 to rotate in the opposite direction. The rotating shaft 23 rotates in the opposite direction, and the second torsion spring 25 undergoes torsional deformation due to the relative displacement at both ends, generating an elastic force in the same direction as the rotation of the rotating shaft 23. It actively assists the rotation of the rotating shaft 23, reducing the external force required for forward flipping and achieving effortless reset. Similarly, when the rotating shaft 23 rotates in the opposite direction, the deformation direction of the first torsion spring 24 is consistent with its natural direction of rotation. It does not generate an elastic force to assist in the forward flipping. It passively deforms with the rotating shaft 23 until the frame mechanism 1 returns to its original position. The first torsion spring 24 provides auxiliary force only when flipping backward, and the second torsion spring 25 provides auxiliary force only when flipping forward. Their opposite directions of rotation ensure that they are activated separately at different stages and will not cancel each other out due to conflicting elastic force directions. The fixing points of the two torsion springs are separated in the horizontal direction, and the elastic forces are transmitted to the connecting seat 22 through independent connecting rods, avoiding stress concentration at the same fixing point and reducing the structural load on the connecting seat 22.

[0028] Please see Figure 7 and Figure 8In one embodiment, the flipping mechanism 2 further includes multiple felt cloths 26. Felt cloths 26 are disposed between adjacent second torsion springs 25, and between the second torsion spring 25 and the first torsion spring 24. When the seat flips or returns to its original position, the release of elastic force from the first torsion spring 24 and the second torsion spring 25 may generate high-frequency vibrations. The loose fiber structure inside the felt cloth 26 allows it to absorb vibration energy through friction and deformation between fibers, reducing the transmission of vibration from the first torsion spring 24 and the second torsion spring 25 to components such as the connecting seat 22 and the rotating shaft 23, thus avoiding noise generated by resonance. If the torsion spring experiences axial movement due to installation gaps or deformation, the end or coil of the metal torsion spring may collide with adjacent torsion springs, producing a metallic impact sound. The softness of the felt cloth 26 can buffer the impact force and block sound transmission, significantly reducing abnormal operating noise of the flipping mechanism 2 and improving the user's operating experience.

[0029] Furthermore, the seat structure 100 also includes an arc-shaped guide rail, the contour of which is the same as the flipping trajectory of the seat frame. A slider is provided on the side of the seat frame, and the slider is slidably mounted on the arc-shaped guide rail. This solves the problem of providing guidance for flipping and eliminating the jamming issue.

[0030] Please see Figure 1 , Figure 5 and Figure 6In one embodiment, the seat structure 100 further includes a floor lock mechanism 4, which includes a floor lock 41, an unlocking handle 42, and a pull rope 43. The floor lock 41 is rotatably mounted on the front end of the seat cushion frame 11, and the unlocking handle 42 is mounted on the rear end of the seat cushion frame 11. The floor lock 41 includes a hook 411 and a lock plate 412. The lock plate 412 forms a lock groove 412a, and the hook 411 is telescopically mounted in the lock groove 412a. The hook 411 is used to connect with a fixing rod of the vehicle body floor 101. The unlocking handle 42 includes a fixing member 421 and a handle 422 rotatably mounted on the fixing member 421. The handle 422 is connected to one end of the pull rope 43, and the other end of the pull rope 43 is connected to the hook 411. The floor lock 41 is rotatably installed at the front end of the seat cushion frame 11. The hook 411 in the lock groove 412a is in the extended state. The end of the hook 411 hooks the fixing rod of the vehicle floor 101. The fixing part 421 of the unlocking handle 42 is installed at the rear end of the seat cushion frame 11. The handle 422 hangs down naturally. The two ends of the pull rope 43 are connected to the handle 422 and the hook 411 respectively. At this time, the pull rope 43 is in a slack or slightly pre-tightened state. The hook 411 is rigidly connected to the fixing rod, fixing the front end of the seat cushion frame 11 to the vehicle floor 101, restricting the forward and backward movement and flipping of the seat cushion frame 11, and ensuring the stability of the seat in scenarios such as riding and bumping. When the seat is flipped, the user manually pulls the handle 422 of the unlocking latch 42 at the rear end of the seat cushion frame 11 upwards. The handle 422 rotates around the fixing member 421. When the handle 422 rotates, it pulls one end of the pull rope 43 upwards through the connection point. The pull rope 43 is tightened along the preset path inside the seat cushion frame 11. The tension is transmitted to the hook 411 at the other end of the pull rope 43. Under the action of the pull rope 43, the hook 411 retracts inwards along the locking groove 412a of the locking plate 412. The end of the hook 411 disengages from the fixing rod of the vehicle floor 101, and the locking relationship between the floor lock 41 and the vehicle floor 101 is released. Then, the frame mechanism 1 is pushed to rotate, causing the frame mechanism to... 1. Enter the trunk compartment 101a, then turn the floor lock 41 to retract it into the seat cushion frame 11, preventing the floor lock 41 from occupying the trunk space. When the seat returns to the sitting position from the flipped-over state, the front end of the seat cushion frame 11 moves down with the frame mechanism 1, and the locking plate 412 of the floor lock 41 approaches the fixing rod of the vehicle floor 101. As the seat cushion frame 11 is in place, the hook 411 moves along the extension direction in the lock groove 412a under its own weight. The end of the hook 411 re-hooks the fixing rod, the pull rope 43 returns to a slack state, and the handle 422 of the unlocking handle 42 falls back to the initial position under the action of gravity, and the floor lock mechanism 4 returns to locking. The floor lock 41 is installed at the front end of the seat cushion frame 11 and is the main load-bearing area of ​​the seat. The rigid engagement of the hook 411 with the fixing rod can directly limit the up-and-down bouncing and back-and-forth movement of the seat cushion frame 11, avoiding seat displacement caused by vibration during driving and improving riding safety.The pull cord 43 can be flexibly arranged along the internal path of the seat frame 11, avoiding the metal parts of the frame mechanism 1. It eliminates the need for complex linkages or gear transmissions, simplifying the structure while ensuring efficient transmission of unlocking force.

[0031] Please see Figure 1 , Figure 5 and Figure 6 In one embodiment, the locking plate 412 has an arc-shaped waist hole 412b, and the ground lock mechanism 4 also includes a guide rod 45, which is slidably installed in the arc-shaped waist hole 412b and mounted on the hook 411. When the hook 411 is pulled into the lock groove 412a by the pull rope 43, the guide rod 45 moves in the arc-shaped waist hole 412b. Since the hook 411 is not straight but can be curved, this provides guidance for the hook 411 to retract into the lock groove 412a, ensuring that the hook 411 can enter the lock groove 412a.

[0032] Furthermore, the seat structure 100 also includes an auxiliary locking assembly, which includes an L-shaped locking tongue, a return spring, a third torsion spring, a connecting rod, and a mechanical feedback pawl. The mechanical feedback pawl is made of reinforced plastic. The L-shaped locking tongue is mounted on the side of the seat cushion frame via a pin. One end of the return spring is connected to the L-shaped locking tongue, and the other end of the return spring is connected to the seat cushion frame. One end of the connecting rod is welded to the locking tongue, and the other end of the connecting rod is linked to the pull rope via a plastic buckle. The mechanical feedback pawl is fixed to the rotating shaft of the unlocking handle 42 via a pin. The unlocking handle 42 includes a sector-shaped gear plate, which is disposed on the handle 422. The mechanical feedback pawl is used to engage with the sector-shaped gear plate. The fixing member 421 is provided with a rotating shaft that is rotatably disposed. The rotating shaft is connected to the handle 422. The third torsion spring is sleeved on the rotating shaft. One end of the third torsion spring is connected to the mechanical feedback pawl, and the other end of the third torsion spring is connected to the fixing member 421. When locked, the return spring drives the bolt to engage in the lock hole in the vehicle floor, forming a double-point support with the original locking point. When unlocking, the pull rope pulls the connecting rod to retract the bolt, and the handle rotates around the rotation axis. The fan-shaped toothed disc rotates synchronously with the handle. The grooves of the fan-shaped toothed disc compress the mechanical feedback pawl, causing it to overcome the torque of the third torsion spring and deflect counterclockwise around the rotation axis. When the mechanical feedback pawl slides past the convex peak of the groove of the fan-shaped toothed disc, it engages in the next groove under the action of the torsion spring's return force, producing a clicking feedback sound, thus providing auditory feedback. After fully unlocking, the mechanical feedback pawl engages in the final groove, and the tactile resistance indicates that the unlocking is complete. After releasing the handle 422, the return spring pushes the L-shaped bolt to reset. At the same time, the return spring also drives the handle to reset through the connecting rod and pull rope. The mechanical feedback pawl re-engages in the initial groove under the action of the third torsion spring, restoring the locking feedback state.

[0033] Please see Figure 5In one embodiment, there are at least two floor locks 41, which are spaced apart along the length of the seat cushion frame 11. The number of pull ropes 43 is the same as the number of floor locks 41, and the pull ropes 43 correspond one-to-one with the floor locks 41. The at least two floor locks 41 spaced apart along the length of the seat cushion frame 11 change the locking point between the front end of the seat cushion frame 11 and the vehicle floor 101 from a single point to multiple points. When the seat bears the weight of passengers or the vehicle is bumpy, the locking force is evenly transmitted to the vehicle floor 101 through the multiple floor locks 41, preventing deformation of the hook 411, wear of the lock groove 412a, or bending of the fixing rod due to concentrated force on a single floor lock 41, significantly improving the structural reliability during long-term use. Multiple floor locks 41 spaced apart can form a lateral or longitudinal constraint array. For example, two floor locks 41 symmetrically distributed on the left and right sides can effectively limit the lateral swaying of the seat cushion frame 11, while floor locks 41 spaced apart front and back can limit forward and backward movement. Combined with the rigid connection between the hook 411 and the fixing rod, the overall locking state of the seat is more stable, avoiding a loose feeling when sitting. The pull rope 43 is set one-to-one with the floor lock 41, that is, each floor lock 41 is connected to the unlocking handle 42 through an independent pull rope 43. Compared with the linkage structure of a single pull rope 43 driving multiple floor locks 41, the independent pull rope 43 can avoid the problem of partial unlocking and partial unlocking caused by the length deviation of the pull rope 43, uneven friction resistance, or jamming of a certain lock body. The unlocking action of each floor lock 41 is driven by a dedicated pull rope 43, ensuring that all locking points retract and unlock synchronously, eliminating frame flipping jamming or abnormal noise caused by asynchronous unlocking.

[0034] Please see Figure 1 In one embodiment, the floor lock mechanism 4 further includes a plastic cover 44, which is rotatably mounted on the front end of the seat cushion frame 11. The plastic cover 44 is used to conceal the floor lock 41. The floor lock 41 is made of metal and may have stamping marks, welding points, or assembly gaps on its surface. Exposing it to the front end of the seat cushion frame 11 would disrupt the overall simplicity of the seat. The plastic cover 44 can hide the rough mechanical structure. By matching the color and texture of the seat cushion fabric, the front end of the seat cushion appears smoother and more uniform, enhancing the user's perception of the seat's refinement. The floor lock mechanism 4 is a functional component, and users are more concerned with the seat's comfort than its mechanical structure in daily use. By concealing the floor lock 41, the plastic cover 44 reduces the visual presence of the floor lock 41, transforming the seat's appearance from a collection of mechanical components to an integrated design, which aligns with the design trend of hidden functions in automotive interiors.

[0035] Please see Figure 1 and Figure 4In one embodiment, the backrest frame 12 includes a second frame body 123, a second connecting plate 124, and a third connecting plate 125. One end of the second connecting plate 124 is rotatably connected to the second frame body 123 via a first angle adjuster 3, and the other end of the second connecting plate 124 is connected to the seat cushion frame 11. One end of the third connecting plate 125 is rotatably connected to the first frame body 122 and the second frame body 123 via a second angle adjuster 5, and the other end of the third connecting plate 125 is connected to the seat cushion frame 11. The angle adjuster is the core component for adjusting the backrest angle, and its rigid connection with the connecting plate ensures the locking accuracy of the adjusted angle. The first angle adjuster 3 corresponds to the second connecting plate 124, and the second angle adjuster 5 corresponds to the third connecting plate 125. The two angle adjusters control the rotation angle of the two support links respectively. Even if the locking force of a single angle adjuster is slightly weakened, the other angle adjuster can still provide auxiliary locking, preventing the backrest from suddenly tilting due to locking failure and improving riding safety. When the vehicle accelerates or brakes, a dynamic impact load is generated between the passenger's back and the backrest. The elastic deformation of the double connecting plate can work together to buffer the impact. Combined with the damping structure inside the angle adjuster, the impact load is reduced to the vehicle floor 101, avoiding the passenger's jerking sensation due to the impact and improving the ride stability.

[0036] According to another aspect of the present invention, the present invention also provides an automobile, including a body floor 101 and the above-mentioned seat structure 100, wherein the body floor 101 forms a trunk slot 101a for placing the frame mechanism 1; since the automobile includes all embodiments of the above-mentioned seat structure 100, it has at least all the beneficial effects brought about by all the above-mentioned embodiments, which will not be described in detail here.

[0037] The above are merely exemplary embodiments of this utility model and do not limit the scope of protection of this utility model. Any equivalent structural transformations made based on the technical concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of this utility model.

Claims

1. A seat structure, characterized in that, include: The frame mechanism includes a seat cushion frame and a backrest frame. The backrest frame includes a first connecting plate and a first frame body. One end of the first connecting plate is rotatably connected to the first frame body via a first angle adjuster, and the other end of the first connecting plate is connected to the seat cushion frame. The flipping mechanism includes a fixed seat, a connecting seat, and a rotating shaft. The fixed seat is used to install on the vehicle floor, the connecting seat is connected to the first connecting plate, one end of the rotating shaft is connected to the connecting seat, and the other end of the rotating shaft is rotatably installed on the fixed seat. The rotating shaft rotates to drive the frame mechanism to be placed in the luggage compartment of the vehicle floor.

2. The seat structure as described in claim 1, characterized in that, The flipping mechanism further includes a plurality of first torsion springs. The connecting seat forms two spaced-apart plates. One end of the rotating shaft is connected to the connecting seat, and the other end of the rotating shaft is rotatably mounted on the two spaced plates. The plurality of first torsion springs are sequentially sleeved on the rotating shaft. A first connecting rod is provided between the two spaced plates. One end of the plurality of first torsion springs is connected to the rotating shaft, and the other end of the plurality of first torsion springs is connected to the first connecting rod.

3. The seat structure as described in claim 2, characterized in that, The flipping mechanism also includes a second torsion spring. The first torsion spring and the second torsion spring have opposite directions of rotation. Multiple first torsion springs and second torsion springs are sequentially sleeved on the rotating shaft. A second connecting rod is also provided between the two spacers. The first connecting rod and the second connecting rod are spaced apart in the horizontal direction. One end of each second torsion spring is connected to the rotating shaft, and the other end of each second torsion spring is connected to the second connecting rod.

4. The seat structure as described in claim 3, characterized in that, The flipping mechanism also includes multiple felt cloths, with the felt cloths disposed between adjacent second torsion springs and between the second torsion spring and the first torsion spring.

5. The seat structure as described in claim 1, characterized in that, The seat structure also includes a floor lock mechanism, which includes a floor lock, an unlocking handle, and a pull rope. The floor lock is rotatably mounted on the front end of the seat cushion frame, and the unlocking handle is mounted on the rear end of the seat cushion frame. The floor lock includes a hook and a lock plate, the lock plate forming a lock groove, and the hook being telescopically mounted in the lock groove. The hook is used to connect with a fixing rod on the vehicle body floor. The unlocking handle includes a fixing member and a handle rotatably mounted on the fixing member. The handle is connected to one end of the pull rope, and the other end of the pull rope is connected to the hook.

6. The seat structure as described in claim 5, characterized in that, The lock plate has an arc-shaped waist hole, and the ground lock mechanism also includes a guide rod, which is slidably installed in the arc-shaped waist hole and installed on the hook.

7. The seat structure as described in claim 6, characterized in that, The number of floor locks is at least two, and the two floor locks are spaced apart along the length of the cushion frame. The number of pull cords is the same as the number of floor locks, and the pull cords are arranged in a one-to-one correspondence with the floor locks.

8. The seat structure as described in claim 7, characterized in that, The floor lock mechanism also includes a plastic cover, which is rotatably mounted on the front end of the seat cushion frame and is used to cover the floor lock.

9. The seat structure as described in any one of claims 1 to 8, characterized in that, The backrest frame includes a second frame body, a second connecting plate, and a third connecting plate. One end of the second connecting plate is rotatably connected to the second frame body via a first angle adjuster, and the other end of the second connecting plate is connected to the seat cushion frame. One end of the third connecting plate is rotatably connected to the first frame body and the second frame body via a second angle adjuster, and the other end of the third connecting plate is connected to the seat cushion frame.

10. A car, characterized in that, The vehicle includes a vehicle floor and a seat structure as described in any one of claims 1 to 9, wherein the vehicle floor forms the luggage compartment slot for housing the frame structure.

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