A zero-gravity seat with rapid return upon impact

Abstract

The application discloses a zero-gravity seat with collision quick return, and relates to the technical field of automobile seats.The seat framework and two supports are provided with a connecting rod assembly, a driving assembly and a pretensioner at the bottom of the seat framework.The driving end of the driving assembly is connected with the connecting rod assembly and drives the seat framework to adjust the angle through the connecting rod assembly.The one end of the pretensioner is fixedly connected with the seat framework, and the tensioning end of the pretensioner is fixedly connected with the driving assembly.When the automobile collides and the seat is in a zero-gravity lying position, the sensor on the automobile detects the collision signal, the sensor sends the collision signal to the pretensioner, the pretensioner is triggered and moves the connecting rod assembly to reset through the driving assembly, so that the seat can quickly return to a traditional sitting position when the collision occurs.

Description

Technical Field

[0001] This application relates to the field of automotive seat technology, and in particular to a zero-gravity seat that allows for rapid recovery after a collision. Background Technology

[0002] The zero-gravity seat, an innovative product integrating aerospace technology and ergonomics, is inspired by the natural posture of astronauts in the microgravity environment of space. Utilizing a precise mechanical adjustment structure, it can adjust the occupant's torso and legs to specific angles that conform to the body's physiological curves. By evenly distributing body weight across the seat surface, it simulates a near-weightless floating sensation, not only relieving pressure on the spine and joints but also reducing muscle tension, providing users with a comfortable experience for extended periods.

[0003] Currently, in a traditional seating position, three-point seat belts in cars can firmly secure the passenger's torso and pelvis through the combined action of the shoulder straps and lap belts, effectively reducing the risk of injury in a collision. However, when a zero-gravity seat is in a reclining position, the passenger's body is in a significantly backward-leaning state, with the pelvis positioned relatively further back and at an angle. In this situation, the force point of the seat belt shifts. The seat belt, which originally conforms to the chest and hips, will slide upward due to the change in body posture, the shoulder straps will tend to move closer to the neck area, and the restraining force of the lap belt on the pelvis will also weaken.

[0004] In the event of a collision, the immense inertia generated by the vehicle's sudden deceleration will cause passengers to slide violently forward and downward. At this point, the misaligned seatbelt cannot effectively disperse the impact force; instead, it will concentrate most of the force on the passenger's neck. On the one hand, the tightness of the shoulder strap on the neck may lead to a risk of suffocation and affect breathing function; on the other hand, under the combined effects of inertial pull and seatbelt restraint, the cervical spine is prone to excessive flexion, extension, or twisting, which can lead to serious injuries to the cervical vertebrae and other structures. Utility Model Content

[0005] In order to enable the seat to quickly return from a zero-gravity reclining position to a traditional sitting position when a car is involved in a collision, this application provides a zero-gravity seat with rapid collision return.

[0006] The zero-gravity seat that provides rapid recovery after a collision, as provided in this application, adopts the following technical solution:

[0007] A zero-gravity seat with rapid collision recovery includes a seat frame and two supports. The two supports are fixedly installed inside the car cabin, and the seat frame is rotatably mounted on the two supports. A linkage assembly and a drive assembly are provided at the bottom of the seat frame. The drive end of the drive assembly is connected to the linkage assembly and drives the seat frame to adjust its angle through the linkage assembly. A pretensioner is provided at the bottom of the seat frame. One end of the pretensioner is fixedly connected to the seat frame, and the tensioning end of the pretensioner is fixedly connected to the drive assembly. When the seat is in a zero-gravity posture and a collision occurs, the pretensioner pulls the linkage assembly through the drive assembly to move and reset, causing the seat to return to a traditional sitting position.

[0008] By adopting the above technical solution, the drive component drives the linkage assembly to operate, and the linkage assembly drives the seat frame to adjust the angle, so that the seat can change from a traditional sitting posture to a zero-gravity reclining posture. When the car is in a collision and the seat is in a zero-gravity reclining posture, the sensors on the car detect the collision signal. The sensors send the collision signal to the pretensioner, which is triggered and pulls the linkage assembly to move and reset through the drive component, so that the seat can quickly return to the traditional sitting posture when a collision occurs.

[0009] Preferably, the linkage assembly includes a connecting rod, two first rotating plates and a second rotating plate. The two first rotating plates are rotatably mounted on two brackets. The two ends of the connecting rod are fixedly connected to the two first rotating plates. The two second rotating plates are rotatably mounted on the two first rotating plates. The two second rotating plates are rotatably connected to the seat frame. The driving end of the drive assembly is rotatably connected to the first rotating plates.

[0010] By adopting the above technical solution, the drive component drives the first rotating plate to rotate on the bracket, the two first rotating plates rotate synchronously through the connecting rod, the two first rotating plates drive the two second rotating plates to rotate, and the two second rotating plates drive the seat frame to rotate, thereby enabling the adjustment of the seat angle.

[0011] Preferably, the drive assembly includes a drive component, a lead screw, a fixed seat, and a movable seat. The movable seat is rotatably mounted on the first rotating plate, the lead screw is rotatably mounted inside the movable seat, the drive component is mounted on the movable seat and is connected to the lead screw via a transmission, the fixed seat is mounted on the tensioning end of the pretensioner, and the lead screw is threaded through the fixed seat.

[0012] By adopting the above technical solution, the driving component drives the lead screw to rotate. After the lead screw rotates in the fixed seat, it drives the movable seat to move. The movable seat then drives the first rotating plate to rotate, thereby enabling the adjustment of the seat angle.

[0013] Preferably, the pretensioner includes a cylinder, a piston, a pull rod, and a gas generator. The cylinder is fixedly mounted on the bottom of the seat frame. The pull rod is slidably mounted on the end of the cylinder near the fixed seat, and the end of the pull rod is fixedly connected to the fixed seat. The piston is slidably mounted inside the cylinder and fixedly connected to the end of the pull rod. The gas generator is mounted on the cylinder and communicates with the inner cavity of the cylinder. The gas generator is located on the side of the piston near the fixed seat, and the cylinder has an exhaust port on the side of the piston away from the gas generator.

[0014] By adopting the above technical solution, when a car is involved in a collision and the seat is in a zero-gravity reclining position, the sensors on the car detect the collision signal. The sensors send the collision signal to the gas generator, which emits high-pressure gas and pushes the piston to move towards the exhaust port. During the piston's movement, the connecting rod moves synchronously, and the connecting rod then pulls the fixed seat to move, thereby enabling the drive assembly to pull the linkage assembly to move and reset.

[0015] Preferably, a mounting rod is fixedly provided on the side of the first rotating plate away from the second rotating plate, and the movable seat is rotatably mounted on the mounting rod.

[0016] By adopting the above technical solution, the movable seat drives the first rotating plate to rotate through the mounting rod, making the connection between the movable seat and the first rotating plate more stable.

[0017] Preferably, a lever is fixedly provided on the mounting rod, and a lever groove is formed on the lever, with the connecting rod located in the lever groove.

[0018] By adopting the above technical solution, when the first rotating plate drives the second rotating plate to rotate, the first rotating plate drives the paddle to rotate synchronously through the mounting rod. The paddle is engaged with the connecting rod through the paddle slot, thereby improving the connection stability between the drive assembly and the paddle assembly.

[0019] Preferably, the lever is perpendicular to the mounting rod, and one side of the lever is bent to form a baffle, which abuts against the side of the mounting rod near the pretensioner.

[0020] By adopting the above technical solution, when the pretensioner quickly pulls the movable seat back to its original position via the pull rod, the baffle abuts against the connecting rod, thereby making the seat's repositioning movement more stable.

[0021] Preferably, the fixed base is covered with a fixed sleeve, and the end of the pull rod is provided with a locking member, which passes through the fixed sleeve and locks the fixed base inside the fixed sleeve.

[0022] By adopting the above technical solution, locking components and fixing sleeves are used to connect the fixing seat and the pull rod, thereby facilitating the disassembly and maintenance of the pull rod and the fixing seat.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The drive assembly drives the linkage assembly, which in turn adjusts the angle of the seat frame, allowing the seat to change from a traditional sitting position to a zero-gravity reclining position. When a collision occurs and the seat is in a zero-gravity reclining position, the sensors on the car detect the collision signal and send it to the pretensioner. The pretensioner is triggered and pulls the linkage assembly to move and reset via the drive assembly, thus enabling the seat to quickly return to a traditional sitting position in the event of a collision.

[0025] 2. With the help of the paddle, when the first rotating plate drives the second rotating plate to rotate, the first rotating plate drives the paddle to rotate synchronously through the mounting rod, and the paddle drives the connecting rod to move through the paddle groove, thereby improving the connection stability between the drive assembly and the paddle assembly;

[0026] 3. The fixing seat and the tie rod are connected by locking parts and fixing sleeves, which facilitates the disassembly and maintenance of the tie rod and the fixing seat. Attached Figure Description

[0027] Figure 1 This is a side view of the overall structure of the zero-gravity seat with rapid collision recovery as described in this application, to highlight the transmission seating posture;

[0028] Figure 2 This is a partial structural diagram of the zero-gravity seat that rapidly returns to its original position after a collision, as described in this application.

[0029] Figure 3 This is a partial structural diagram of the zero-gravity seat with rapid collision recovery according to this application, in its traditional sitting posture.

[0030] Figure 4 This is a side view of the overall structure of the zero-gravity seat with rapid collision recovery as described in this application, to highlight the zero-gravity reclining posture;

[0031] Figure 5 This is a partial structural diagram of the zero-gravity reclining position of the zero-gravity seat that allows for rapid recovery after a collision, as described in this application.

[0032] Figure 6 This is an exploded view of part of the zero-gravity seat that rapidly returns to its original position after a collision, as described in this application.

[0033] Reference numerals: 1. Seat frame; 2. Bracket; 3. Linkage assembly; 31. Connecting rod; 32. First rotating plate; 33. Second rotating plate; 4. Drive assembly; 41. Drive component; 42. Lead screw; 43. Fixed seat; 44. Moving seat; 5. Pretensioner; 51. Cylinder; 52. Piston; 53. Tie rod; 54. Gas generator; 6. Exhaust port; 7. Mounting rod; 8. Paddle; 9. Paddle groove; 10. Baffle; 11. Fixing sleeve; 12. Locking component. Detailed Implementation

[0034] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.

[0035] This application discloses a zero-gravity seat that allows for rapid recovery after a collision.

[0036] Reference Figure 1 , Figure 2 and Figure 3 A zero-gravity seat with rapid collision recovery includes a seat frame 1 and two supports 2. The two supports 2 are fixedly installed inside the car body, and the seat frame 1 is rotatably mounted on one end of the two supports 2. A linkage assembly 3 is installed at the bottom of the seat frame 1, and the linkage assembly 3 is connected to the two supports 2. A drive assembly 4 is installed at the bottom of the seat frame 1, and the drive end of the drive assembly 4 is connected to the linkage assembly 3. A pretensioner 5 is installed at the bottom of the seat frame 1, and the tensioning end of the pretensioner 5 is connected to the drive assembly 4.

[0037] The linkage assembly 3 is activated by the drive assembly 4, changing the angle of the seat frame 1 to allow the seat to shift from a conventional sitting posture (see reference). Figure 1 Transform into a zero-gravity lying position (refer to) Figure 4 When a collision occurs and the seat is in a zero-gravity reclining position, the vehicle's sensors accurately identify the collision signal and send it to the pretensioner 5. The pretensioner 5 then activates, applying tension to the linkage assembly 3 via the drive assembly 4, causing it to quickly return to its original position. This ultimately enables the seat to rapidly return to a traditional sitting position at the moment of impact. Compared to traditional crumple-type return methods, this solution achieves millisecond-level return, making the return much faster.

[0038] Reference Figure 3 , Figure 5 and Figure 6 The linkage assembly 3 includes a connecting rod 31, two first rotating plates 32, and a second rotating plate 33. The middle portions of the two first rotating plates 32 are rotatably connected to the sides of the two supports 2 that are close to each other. The two ends of the connecting rod 31 are rotatably mounted on the two supports 2, and the two ends of the connecting rod 31 are fixedly connected to the middle portions of the two first rotating plates 32. The two second rotating plates 33 are rotatably mounted on the tops of the two first rotating plates 32, and the tops of the two second rotating plates 33 away from the first rotating plates 32 are rotatably connected to the bottom of the seat frame 1.

[0039] The pretensioner 5 includes a cylinder 51, a piston 52, a pull rod 53, and a gas generator 54. The cylinder 51 is fixedly mounted on the bottom of the seat frame 1, and the piston 52 is slidably mounted inside the cylinder 51. The gas generator 54 is mounted on the cylinder 51 and located on the side of the piston 52 closer to the drive assembly 4. The pull rod 53 is slidably mounted inside the cylinder 51, with one end fixedly connected to the piston 52 and the other end extending into the cylinder 51 towards the drive assembly 4. An exhaust port 6 is formed at the end of the cylinder 51 where the piston 52 is furthest from the pull rod 53.

[0040] The drive assembly 4 includes a drive member 41, a lead screw 42, a fixed seat 43, and a movable seat 44. The end of the pull rod 53 away from the piston 52 is fixedly mounted with a fixed sleeve 11 by two locking members 12. The fixed seat 43 is installed in the fixed sleeve 11. In this application, the locking member 12 can be a bolt, and the locking member 12 locks the fixed seat 43 in the fixed sleeve 11.

[0041] A mounting rod 7 is fixedly installed at the bottom of the first rotating plate 32. A movable seat 44 is rotatably mounted on the mounting rod 7, and a drive component 41 is fixedly mounted on the movable seat 44. One end of a lead screw 42 is rotatably mounted on the movable seat 44 and is connected to the drive component 41 for transmission, and the other end of the lead screw 42 is threaded through a fixed seat 43. In this application, the drive component 41 can be a servo motor.

[0042] The drive unit 41 provides power to drive the lead screw 42 to rotate. The rotating lead screw 42 rotates inside the fixed seat 43, and this rotational motion is converted into a driving force on the movable seat 44, causing the movable seat 44 to move. The movable seat 44 then drives the first rotating plate 32 to rotate around the fixed point through the mounting rod 7. The two first rotating plates 32 rotate synchronously through the connecting rod 31 and drive the two second rotating plates 33 to rotate. The two second rotating plates 33 drive the seat frame 1 to rotate on the two brackets 2, thereby enabling the adjustment of the seat angle.

[0043] If a collision occurs and the seat is in a zero-gravity reclining position, the onboard sensors will first detect the collision signal and transmit it to the gas generator 54. The gas generator 54 has a gas generating section and an ignition section (not shown). For example, after a collision is detected by the sensors, an ignition signal is sent to the ignition section, causing it to operate. The gas generating section injects high-temperature, high-pressure gas into the cylinder 51. The high-pressure gas pushes the piston 52 to move rapidly within the cylinder 51. The piston 52 drives the connecting rod 53 to move towards the exhaust port 6. As the piston 52 moves, the connected connecting rod 53 moves synchronously. The connecting rod 53 further pulls the fixed seat 43, causing displacement. Finally, the drive assembly 4 pulls the linkage assembly 3 to move and complete the reset action, allowing the seat to quickly return to a traditional sitting position at the moment of impact.

[0044] A lever 8 is fixedly installed at the end of the mounting rod 7. The lever 8 is perpendicular to the connecting rod 31. The top of the lever 8 is recessed to form a lever groove 9, and the connecting rod 31 is located in the lever groove 9. One side of the lever 8 is bent at 90° to form a baffle 10, which abuts against the side of the mounting rod 7 near the pretensioner 5.

[0045] When the first rotating plate 32 drives the second rotating plate 33 to rotate, the first rotating plate 32 will drive the paddle 8 to rotate synchronously with the help of the mounting rod 7. The rotating paddle 8 is engaged with the connecting rod 31 through the slot 9, which enhances the stability of the connection between the drive assembly 4 and the paddle assembly. When the pretensioner 5 quickly pulls the seat back to its original position through the pull rod 53, the baffle 10 will abut against the connecting rod 31. Through this limiting effect, the seat is more stable during the repositioning process.

[0046] The implementation principle of a zero-gravity seat with rapid collision recovery according to an embodiment of this application is as follows: In the zero-gravity seat with rapid collision recovery, the drive assembly 4 serves as the power source, driving the connected linkage assembly 3 to perform coordinated movement; the linkage assembly 3 further transmits power to the seat frame 1, thereby realizing the angle adjustment of the seat back and seat cushion, ultimately enabling the seat to smoothly transition from a normal sitting posture to a zero-gravity reclining posture, providing users with a more comfortable and relaxing riding experience. When a vehicle collision occurs and the seat is in a zero-gravity reclining state, the collision sensor installed on the vehicle will quickly detect the collision signal and transmit the signal to the pretensioner 5 in real time. Upon receiving the signal, the pretensioner 5 is immediately triggered, acting in the opposite direction through the drive assembly 4 to the linkage assembly 3, forcing it to perform a reset action, thereby ensuring that the seat quickly returns to the traditional sitting posture in a very short time after the collision, effectively reducing the risk of injury to occupants in sudden accidents.

[0047] The above are merely optional embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A zero-gravity seat with rapid collision recovery, comprising a seat frame (1) and two supports (2), the two supports (2) being fixedly installed inside a car cabin, and the seat frame (1) being rotatably mounted on the two supports (2), characterized in that: The bottom of the seat frame (1) is provided with a linkage assembly (3) and a drive assembly (4). The drive end of the drive assembly (4) is connected to the linkage assembly (3) and drives the seat frame (1) to adjust the angle through the linkage assembly (3). The bottom of the seat frame (1) is provided with a pretensioner (5). One end of the pretensioner (5) is fixedly connected to the seat frame (1), and the tension end of the pretensioner (5) is fixedly connected to the drive assembly (4). When the seat is in a zero-gravity posture and the car is involved in a collision, the pretensioner (5) pulls the linkage assembly (3) through the drive assembly (4) to move and reset, and the seat returns to the traditional sitting position.

2. A zero-gravity seat with rapid collision recovery according to claim 1, characterized in that: The linkage assembly (3) includes a connecting rod (31), two first rotating plates (32) and a second rotating plate (33). The two first rotating plates (32) are rotatably mounted on two brackets (2). The two ends of the connecting rod (31) are fixedly connected to the two first rotating plates (32). The two second rotating plates (33) are rotatably mounted on the two first rotating plates (32). The two second rotating plates (33) are rotatably connected to the seat frame (1). The driving end of the drive assembly (4) is rotatably connected to the first rotating plate (32).

3. A zero-gravity seat with rapid collision recovery according to claim 2, characterized in that: The drive assembly (4) includes a drive member (41), a lead screw (42), a fixed seat (43), and a movable seat (44). The movable seat (44) is rotatably mounted on the first rotating plate (32). The lead screw (42) is rotatably mounted inside the movable seat (44). The drive member (41) is mounted on the movable seat (44) and is connected to the lead screw (42) in a transmission manner. The fixed seat (43) is mounted at the tensioning end of the pretensioner (5). The lead screw (42) is threaded through the fixed seat (43).

4. A zero-gravity seat with rapid collision recovery according to claim 3, characterized in that: The pretensioner (5) includes a cylinder (51), a piston (52), a pull rod (53), and a gas generator (54). The cylinder (51) is fixedly installed at the bottom of the seat frame (1). The pull rod (53) is slidably installed at one end of the cylinder (51) near the fixed seat (43). The end of the pull rod (53) is fixedly connected to the fixed seat (43). The piston (52) is slidably installed inside the cylinder (51) and fixedly connected to the end of the pull rod (53). The gas generator (54) is installed on the cylinder (51) and communicates with the inner cavity of the cylinder (51). The gas generator (54) is located on the side of the piston (52) near the fixed seat (43). The cylinder (51) has an exhaust port (6) on the side of the piston (52) away from the gas generator (54).

5. A zero-gravity seat with rapid collision recovery according to claim 4, characterized in that: An installation rod (7) is fixedly provided on the side of the first rotating plate (32) away from the second rotating plate (33), and the movable seat (44) is rotatably mounted on the installation rod (7).

6. A zero-gravity seat with rapid collision recovery according to claim 5, characterized in that: A paddle (8) is fixedly installed on the mounting rod (7), and a groove (9) is formed on the paddle (8). The connecting rod (31) is located in the groove (9).

7. A zero-gravity seat with rapid collision recovery according to claim 6, characterized in that: The lever (8) is perpendicular to the mounting rod (7), and one side of the lever (8) is bent to form a baffle (10), which abuts against the side of the mounting rod (7) near the pretensioner (5).

8. A zero-gravity seat with rapid collision recovery according to claim 4, characterized in that: The fixed seat (43) is covered with a fixed sleeve (11), and the end of the pull rod (53) is provided with a locking member (12). The locking member (12) passes through the fixed sleeve (11) and locks the fixed seat (43) inside the fixed sleeve (11).

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