Quick-reset seat mechanism, seat, and vehicle

Abstract

Disclosed are a quick-reset seat mechanism, a seat, and a vehicle, belonging to the technical field of automobile seats. The quick-reset seat mechanism comprises a backrest frame, a backrest lower fixing base, a self-locking angle adjuster, a synchronization rod, a flywheel, an angle adjustment driver and a reset assembly. The backrest lower fixing base is used for being fixedly connected to a seat cushion frame, the backrest frame is rotatably connected to the backrest lower fixing base by means of the self-locking angle adjuster, the synchronization rod is fixedly connected to the self-locking angle adjuster, the flywheel is fixedly connected to the synchronization rod, the angle adjustment driver is in transmission connection with the synchronization rod, in order to adjust the angle of the backrest frame, the reset assembly is mounted on the backrest frame, the flywheel is located within the reset assembly, and the reset assembly can drive the flywheel to rotate, so that the backrest frame is reset.

Description

A quick-reset seating mechanism, seat, and vehicle.

[0001] This application claims priority to Chinese Patent Application No. 202411428588.0, filed on October 14, 2024, entitled “A quick-reset seat mechanism, seat and vehicle”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application belongs to the field of automotive seat technology, and particularly relates to a seat mechanism, seat, and vehicle with quick reset capability. Background Technology

[0003] In the current sweeping transformation of the automotive industry, intelligent driving and intelligent cockpits are undoubtedly two core areas that major domestic automakers are fiercely pursuing. Zero-gravity seats are an innovative product that further refines the field of intelligent cockpits.

[0004] In the event of a vehicle collision, especially a frontal collision, the force applied to the car seat can cause severe compression of the passenger's chest against the seatbelt. Particularly when the backrest is reclined at a large angle (e.g., in a zero-pressure state), the occupant is more likely to be compressed relative to the seat during a collision or sudden braking, resulting in spinal compression. This poses a significant safety hazard, and the risk of injury is far greater than when the backrest is reclined at a small angle. Summary of the Invention

[0005] This application aims to at least partially address the technical problem that, in the event of a collision or sudden braking, occupants are easily compressed relative to the seat, resulting in spinal compression and posing a significant safety hazard. To this end, this application provides a seat mechanism, seat, and vehicle with quick reset capability.

[0006] In a first aspect, embodiments of this application provide a seat mechanism capable of rapid reset, comprising:

[0007] The backrest frame, the lower backrest fixing base, and the self-locking angle adjuster are provided. The lower backrest fixing base is used to fix the backrest frame to the seat cushion frame. The backrest frame and the lower backrest fixing base are rotatably connected by the self-locking angle adjuster.

[0008] A synchronizing rod and a flywheel, wherein the synchronizing rod is fixedly connected to the self-locking angle adjuster, and the flywheel is fixedly connected to the synchronizing rod;

[0009] An angle adjustment driver is connected to the synchronous rod to adjust the angle of the backrest frame;

[0010] A reset assembly is installed in the backrest frame, and the flywheel is located inside the reset assembly. The reset assembly can drive the flywheel to rotate so that the backrest frame is reset.

[0011] Based on the above technical content, under normal vehicle driving conditions, the tilt of the backrest can be adjusted by the angle adjustment driver driving the synchronous rod to rotate, which in turn drives the self-locking angle adjuster to rotate, thereby causing the backrest frame to rotate. When a collision or emergency braking occurs, the backrest can quickly reset under the action of the reset component. Specifically, the reset component drives the flywheel to rotate, which in turn drives the synchronous rod to rotate, which in turn drives the self-locking angle adjuster to rotate, causing the backrest frame to rotate forward and reset. This absorbs the forward energy of the seat and simultaneously causes the human torso to quickly reset, reducing the impact force transmitted to the seat and the passenger's spine, thus improving seat safety. Furthermore, because this invention has a self-locking angle adjuster, the backrest frame and the lower fixed base of the backrest are always in a self-locking state, ensuring that the backrest frame remains effectively locked even under complex conditions such as secondary collisions, further improving safety.

[0012] In some embodiments, the reset component includes:

[0013] The outer shell is fixedly connected to the backrest frame;

[0014] A guide and a moving part, the guide being fixedly connected to the housing, the guide having a channel and an outlet communicating with the channel, the moving part being located within the channel, and the flywheel being located beside the outlet;

[0015] A drive unit is mounted on the guide member and located on the side of the moving member away from the outlet. The drive unit is capable of driving the moving member to exit from the outlet and driving the flywheel to rotate.

[0016] Furthermore, when the vehicle collides or brakes suddenly, the drive component will drive the moving component to move towards the exit side and discharge the moving component through the exit. After being discharged from the exit, the moving component still has kinetic energy, which will contact the flywheel and push the flywheel to rotate. The flywheel will then drive the synchronizing rod to rotate, which in turn will drive the self-locking angle adjuster to rotate, thereby driving the backrest frame to rotate forward to achieve the backrest frame reset.

[0017] In some embodiments, the reset component further includes:

[0018] A collector, disposed next to the drive member, has a receiving cavity and an inlet communicating with the receiving cavity. The collector is mounted on the housing, and the inlet is disposed opposite to the outlet of the guide member, so that the moving member can enter the receiving cavity through the inlet.

[0019] Furthermore, after the moving component pushes the flywheel, it separates from the flywheel. Even after separation, the moving component retains kinetic energy and continues to move forward, entering the receiving cavity through the inlet and being stored there. This design allows the moving component to be stored in the collector without falling out, facilitating collection and enabling reuse. The shape and size of the receiving cavity are not limited in this application; users can design it adaptively based on the size and quantity of the moving components.

[0020] In some embodiments, the housing includes:

[0021] The bottom shell, the guide and the collecting component are both installed on the bottom shell, and the bottom shell is fixedly connected to the backrest frame;

[0022] A cover plate is installed on the bottom shell and surrounds the bottom shell to form a guide groove. The flywheel is located between the bottom shell and the cover plate, and at least a portion of the flywheel is located in the guide groove. The outlet and the inlet are both connected to the guide groove.

[0023] Furthermore, the bottom shell and the backrest frame are fixedly connected; in some embodiments, the bottom shell and the backrest frame are fixedly connected by bolts. The bottom shell and the cover plate are arranged opposite to each other and fixedly connected; in some embodiments, the bottom shell and the cover plate are fixedly connected by bolts. After the cover plate and the bottom shell are connected, they form a guide groove, which is used to guide the moving parts. The outlet communicates with the guide groove so that the guided parts exit from the outlet and enter the guide groove. At least a portion of the flywheel is located in the guide groove so that the moving parts in the guide groove can contact the peripheral wall of the flywheel and drive the flywheel to rotate. The inlet communicates with the guide groove so that the moving parts in the guide groove can enter the receiving cavity through the inlet.

[0024] In some embodiments, a plurality of limiting grooves are spaced apart on the outer periphery of the flywheel along its circumference, and the moving member is spherical and has a plurality of such grooves. Under the action of the driving member, at least a portion of the moving member can be located within the limiting grooves to drive the flywheel to rotate.

[0025] Furthermore, the moving part is spherical, and at least a portion of the moving part can be located within the limiting groove. After the moving part is discharged from the outlet, it still has kinetic energy, and at least a portion of the moving part will be located within the limiting groove and in contact with the side wall of the limiting groove. Because the moving part has kinetic energy, it will move forward along the guide groove. As the moving part contacts the side wall of the limiting groove, it can drive the flywheel to rotate. Under the action of multiple moving parts, the flywheel can continue to rotate, thereby causing the backrest frame to rotate forward and reset.

[0026] In some embodiments, the channel includes a first channel and a second channel that are connected; the first channel is disposed along the length direction of the synchronizing rod, the second channel is disposed at an angle to the first channel and is J-shaped, the outlet is disposed on the side of the second channel away from the first channel, and the moving member is disposed in the first channel and / or the second channel.

[0027] Furthermore, the first channel is arranged along the length direction of the synchronizing rod, meaning its length direction is parallel to the synchronizing rod. This arrangement utilizes space along the width of the seat. The second channel has a J-shaped design, utilizing space along both the height and length of the seat. This design helps reduce the external dimensions and space occupied by the guide component, facilitating its installation. With this design, the drive component, guide component, guide groove, and collecting component together form a racetrack-shaped structure. The angular arrangement can be right-angled, obtuse-angled, or acute-angled; in some embodiments, the first and second channels are perpendicular.

[0028] In some embodiments, the drive includes:

[0029] Explosives, said explosives being disposed within the passageway;

[0030] An igniter, which is mounted on the guide member, is used to ignite the explosive.

[0031] Furthermore, the explosive material can be composed of gunpowder, etc., and can be ignited, detonating within a short time. An igniter is used to ignite the explosive, causing it to explode. After the explosion, the high-pressure gas generated expands rapidly within the channel, propelling the moving component towards the outlet side, from which it is discharged. These embodiments, by using the explosive explosion to propel the moving component, can respond and propel the component in a short time, allowing the backrest frame to quickly rotate forward and return to its original position within 100ms, thus improving seat safety.

[0032] In some embodiments, the reset component is disposed inside the backrest frame and is located between the angle adjustment driver and the backrest frame.

[0033] Furthermore, the backrest frame has a connecting arm, a first support arm, and a second support arm, which are spaced apart. The connecting arm connects the upper ends of the first and second support arms together. It is easy to understand that the lower backrest fixing base and the self-locking angle adjuster are both located at the lower ends of the first and second support arms. The reset assembly is located inside the backrest frame, that is, between the first and second support arms, specifically on the side of the first support arm closer to the second support arm, or on the side of the second support arm closer to the first support arm. Placing the reset assembly inside the backrest frame utilizes the space between the first and second support arms, reducing the space occupied by the quick-reset seat mechanism in the length direction of the synchronizing rod.

[0034] Secondly, embodiments of this application provide a seat, including the quick-reset seat mechanism described in the first aspect above.

[0035] Thirdly, embodiments of this application provide a vehicle including the quick-reset seat mechanism described in the first aspect above, or including the seat described in the second aspect above.

[0036] The present invention has at least the following beneficial effects:

[0037] This invention provides a quick-reset seat mechanism, a seat, and a vehicle. The quick-reset seat mechanism includes a backrest frame, a lower backrest fixing base, a self-locking angle adjuster, a synchronizing rod, a flywheel, an angle adjustment driver, and a reset assembly. The lower backrest fixing base is used for fixed connection to the seat cushion frame, and the backrest frame and the lower backrest fixing base are rotatably connected via the self-locking angle adjuster; the synchronizing rod is fixedly connected to the self-locking angle adjuster, and the flywheel is fixedly connected to the synchronizing rod; the angle adjustment driver is driven by the synchronizing rod to adjust the angle of the backrest frame; the reset assembly is installed in the backrest frame, and the flywheel is located inside the reset assembly. The reset assembly can drive the flywheel to rotate, thereby resetting the backrest frame.

[0038] Under normal driving conditions, the tilt of the backrest can be adjusted by the angle adjustment actuator driving the synchronous rod to rotate, which in turn drives the self-locking angle adjuster, which in turn drives the backrest frame to rotate. In the event of a collision or emergency braking, the backrest can quickly reset under the action of the reset component. Specifically, the reset component drives the flywheel to rotate, which in turn drives the synchronous rod to rotate, which in turn drives the self-locking angle adjuster, causing the backrest frame to rotate forward and reset. This absorbs the forward energy of the seat and simultaneously allows the human torso to quickly reset, reducing the impact force transmitted to the seat and the passenger's spine, thus improving seat safety. Furthermore, because this invention features a self-locking angle adjuster, the backrest frame and the lower fixed base are always in a self-locking state, ensuring that the backrest frame remains effectively locked even under complex conditions such as secondary collisions, further enhancing safety. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 shows a schematic diagram of the structure of a seat mechanism that can be quickly reset in one or more embodiments of this application;

[0041] Figure 2 shows a partial schematic diagram of the quick-reset seat mechanism shown in Figure 1;

[0042] Figure 3 shows a schematic diagram of the flywheel and reset assembly of a seat mechanism that can be quickly reset in one or more embodiments of this application;

[0043] Figure 4 shows a schematic diagram of the structure after the cover plate of Figure 3 is hidden and the moving parts are located in the channel;

[0044] Figure 5 shows a schematic diagram of the structure after the cover plate of Figure 3 is hidden and the moving part is located in the guide groove.

[0045] Explanation of reference numerals in the attached drawings: 100-Quickly resettable seat mechanism; 110-Backrest frame; 111-First support arm; 112-Second support arm; 113-Connecting arm; 120-Lower backrest fixed base; 130-Self-locking angle adjuster; 140-Synchronizing rod; 150-Flywheel; 150a-Limiting groove; 160-Angle adjustment driver; 170-Reset assembly; 171-Outer shell; 1711-Bottom shell; 1711a-Guide groove; 1712-Cover plate; 172-Guide component; 172a-Channel; 172b-First channel; 172c-Second channel; 172d-Outlet; 173-Moving component; 174-Drive component; 175-Collection component; 175a-Inlet. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0047] It should be noted that all directional indications in the embodiments of the present invention 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 indications will also change accordingly.

[0048] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0049] Furthermore, in this invention, descriptions involving "first," "second," etc., 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 that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0050] In the current sweeping transformation of the automotive industry, intelligent driving and intelligent cockpits are undoubtedly two core areas that major domestic automakers are fiercely pursuing. Zero-gravity seats are an innovative product that further refines the field of intelligent cockpits.

[0051] In the event of a vehicle collision, especially a frontal collision, the force applied to the car seat can cause severe compression of the passenger's chest against the seatbelt. Particularly when the backrest is reclined at a large angle (e.g., in a zero-pressure state), the occupant is more likely to be compressed relative to the seat during a collision or sudden braking, resulting in spinal compression. This poses a significant safety hazard, and the risk of injury is far greater than when the backrest is reclined at a small angle.

[0052] Among related technologies, patent publication number WO2023178831A1 discloses a recovery and energy absorption mechanism for a seat back and a car seat. This patent absorbs energy through the deformation of parts during the rotation of the backrest. However, the mechanism cannot self-lock after a collision, and fails in a secondary collision, posing a safety hazard. Chinese invention patent publication number CN113459911A discloses a front-impact energy absorption structure for a car seat and a seat with this structure. This patent uses a planetary gear structure with planetary gear deformation for energy absorption, resulting in a complex and unstable energy absorption mechanism. Chinese invention patent publication number CN117565761A discloses a rapid backrest return mechanism and a rapid seat cushion return mechanism based on a zero-gravity seat. This patent uses a locking pin bracket structure to achieve rapid return after electric unlocking. However, the mechanism cannot self-lock after a collision, and fails in a secondary collision, posing a safety hazard.

[0053] In related technologies, when a vehicle encounters a collision or sudden braking, there is a technical problem that occupants are easily compressed relative to the seat, causing spinal compression and posing a significant safety hazard. This application provides a seat mechanism 100 with rapid reset capability, which can at least partially solve the technical problem of occupants being easily compressed relative to the seat and causing spinal compression when a vehicle encounters a collision or sudden braking, posing a significant safety hazard.

[0054] It should be noted that in Figure 1, a indicates the position of the backrest frame before the collision, and b indicates the position of the backrest frame after the collision.

[0055] As shown in Figures 1 and 2, the quick-reset seat mechanism 100 includes: a backrest frame 110, a lower backrest fixing base 120, a self-locking angle adjuster 130, a synchronizing rod 140, a flywheel 150, an angle adjustment driver 160, and a reset assembly 170. It should be noted that, for easier observation of the self-locking angle adjuster 130, Figure 2 is an exploded view, showing the self-locking angle adjuster 130 exploded outside the lower backrest fixing base 120. In the unexploded state, the self-locking angle adjuster 130 is located between the backrest frame 110 and the fixing base 120.

[0056] The lower backrest fixing base 120 is used to fix it to the seat cushion frame. The backrest frame 110 and the lower backrest fixing base 120 are rotatably connected by a self-locking angle adjuster 130.

[0057] The self-locking angle adjuster 130 is located between the backrest frame 110 and the fixed base 120. The structure of the self-locking angle adjuster 130 varies, as is known to those skilled in the art, and the installation methods of different types of self-locking angle adjusters 130 are also known to those skilled in the art. This application does not limit the specific structure of the self-locking angle adjuster 130. It is easily understood that the backrest frame 110 is fixed to the rotating component of the self-locking angle adjuster 130, and the lower fixed base 120 of the backrest is fixed to the fixing component of the self-locking angle adjuster 130. The rotating component can rotate relative to the fixing component, thereby enabling the backrest frame 110 to rotate relative to the lower fixed base 120 of the backrest.

[0058] Synchronizing rod 140 is fixedly connected to self-locking angle adjuster 130, and flywheel 150 is fixedly connected to synchronizing rod 140.

[0059] The synchronizing rod 140 is fixedly connected to the rotating component of the self-locking angle adjuster 130. Rotation of the synchronizing rod 140 drives the rotating component to rotate, which in turn drives the backrest frame 110 to rotate. Since the flywheel 150 is fixed to the synchronizing rod 140, the flywheel 150 will rotate synchronously with the synchronizing rod 140. In some embodiments, the flywheel 150 is sleeved on the synchronizing rod 140, and the synchronizing rod 140 and the flywheel 150 are fixedly connected by a spline.

[0060] The angle adjustment driver 160 is connected to the synchronizing rod 140 to adjust the angle of the backrest frame 110.

[0061] The angle adjustment driver 160 may include components such as a motor and output gear, and its structure is diverse and known to those skilled in the art. The angle adjustment driver 160 drives the synchronous rod 140 to rotate, which in turn drives the backrest frame 110 to rotate, thereby adjusting the tilt angle of the backrest.

[0062] The reset assembly 170 is installed on the backrest frame 110, and the flywheel 150 is located inside the reset assembly 170. The reset assembly 170 can drive the flywheel 150 to rotate so that the backrest frame 110 is reset.

[0063] The reset assembly 170 is fixedly connected to the backrest frame 110. The reset assembly 170 rotates synchronously with the backrest frame 110. When the vehicle is involved in a collision or emergency braking, the reset assembly 170 will work and drive the flywheel 150 to rotate. Since the flywheel 150 and the synchronizer rod 140 are fixedly connected, the synchronizer rod 140 will rotate, which in turn will drive the rotating part of the self-locking angle adjuster 130 to rotate, which in turn will drive the backrest frame 110 of the seat to rotate, so that the backrest frame 110 is reset.

[0064] When the backrest is in a large backward tilt (such as a zero-pressure state), in the event of a collision or sudden braking, the occupant is prone to relative compression with the seat, resulting in spinal compression, which poses a significant safety hazard. The risk of injury is much greater than when the backrest is in a small backward tilt. Therefore, resetting refers to rotating the backrest frame 110 forward until it is in an unadjusted state, thereby reducing the tilt angle of the backrest and decreasing spinal compression of the occupant.

[0065] Under normal driving conditions, the tilt of the backrest can be adjusted by the angle adjustment actuator 160 driving the synchronizer 140 to rotate, which in turn drives the self-locking angle adjuster 130 to rotate, thereby causing the backrest frame 110 to rotate. When a collision or emergency braking occurs, the backrest can quickly reset under the action of the reset assembly 170. Specifically, the reset assembly 170 drives the flywheel 150 to rotate, which in turn drives the synchronizer 140 to rotate, which in turn drives the self-locking angle adjuster 130 to rotate, thereby causing the backrest frame 110 to rotate forward and reset. This absorbs the forward energy of the seat and simultaneously causes the human torso to quickly reset, reducing the impact force transmitted to the seat and the passenger's spine, thus improving seat safety. Furthermore, because this invention has the self-locking angle adjuster 130, the backrest frame 110 and the lower backrest fixed base 120 are always in a self-locking state, ensuring that the backrest frame 110 remains effectively locked under complex conditions such as secondary collisions, further enhancing safety.

[0066] As shown in Figures 3, 4, and 5, in some embodiments, the reset assembly 170 includes: a housing 171, a guide 172, a moving member 173, and a drive member 174. The housing 171 is fixedly connected to the backrest frame 110; the guide 172 is fixedly connected to the housing 171, and the guide 172 has a channel 172a and an outlet 172d communicating with the channel 172a; the moving member 173 is located within the channel 172a, and the flywheel 150 is located beside the outlet 172d; the drive member 174 is mounted on the guide 172 and is located on the side of the moving member 173 away from the outlet 172d, and the drive member 174 can drive the moving member 173 to exit from the outlet 172d, so that the moving member 173 pushes the flywheel 150 to rotate.

[0067] The outer shell 171 is fixedly connected to the backrest frame 110. The guide 172 is used to guide the moving part 173 and is also fixedly connected to the outer shell 171. The guide 172 has a channel 172a and an outlet 172d communicating with the channel 172a. The moving part 173 is located in the channel 172a and can be discharged through the outlet 172d. The drive component 174 is mounted on the guide component 172. The drive component 174 is mounted on the side of the moving component 173 away from the outlet 172d. When the vehicle collides or brakes suddenly, the drive component 174 will drive the moving component 173 to move towards the outlet 172d and discharge the moving component 173 through the outlet 172d. After the moving component 173 is discharged from the outlet 172d, it still has kinetic energy. It will contact the flywheel 150 and push the flywheel 150 to rotate. The flywheel 150 will drive the synchronizing rod 140 to rotate. The synchronizing rod 140 will drive the self-locking angle adjuster 130 to rotate, thereby driving the backrest frame 110 to rotate forward to achieve the reset of the backrest frame 110.

[0068] The structure of the drive component 174 is varied. It may include a spring and a spring limiter. Under normal vehicle operation, the spring limiter restricts the spring, keeping it in a compressed state. When a collision or emergency braking occurs, the spring limiter moves, no longer contacting the spring, releasing it. The spring then returns to its original deformation, applying a force to the moving component 173, causing it to move towards the outlet 172d. Alternatively, the drive component 174 may be an electric push rod or a hydraulic cylinder. Under normal vehicle operation, the electric push rod or hydraulic cylinder is in a retracted state. When a collision or emergency braking occurs, the electric push rod or hydraulic cylinder gradually extends, causing the moving component 173 to move towards the outlet 172d.

[0069] In some embodiments, the guide 172 is also provided with an entrance that communicates with the channel 172a, through which the moving part 173 is placed into the channel 172a. Of course, it is also possible to not provide an entrance and place the moving part 173 into the channel 172a through the outlet 172a.

[0070] In some embodiments, the drive 174 includes an explosive and an igniter. The explosive is disposed within a channel 172a; the igniter is mounted on the guide 172 and is used to ignite the explosive.

[0071] The explosive material can be composed of gunpowder, etc., and can be ignited, detonating within a short time. An igniter is used to ignite the explosive material, causing it to explode. After the explosion, the high-pressure gas generated expands rapidly within channel 172a, pushing the moving part 173 towards the outlet 172d, and then discharging it through outlet 172d. These embodiments, by using the explosion of the explosive material to push the moving part 173, can respond and push the moving part 173 in a short time, allowing the backrest frame 110 to quickly rotate forward and return to its original position within 100ms, thus improving the safety of the seat.

[0072] In some embodiments, the igniter is electrically connected to the vehicle's ECU controller and is controlled by the ECU controller. When a collision occurs, the collision sensor inside the vehicle transmits a collision signal to the vehicle's ECU controller. After performing logical operations, the ECU controller sends an ignition command signal to the igniter, which then ignites the explosive upon receiving the ignition command signal.

[0073] In some embodiments, the reset assembly 170 further includes a collector 175 disposed next to the drive member 174. The collector 175 has a receiving cavity and an inlet 175a communicating with the receiving cavity. The collector 175 is mounted on the housing 171, and the inlet 175a is disposed opposite to the outlet 172d of the guide member 172 so that the moving member 173 can enter the receiving cavity through the inlet 175a.

[0074] After the moving component 173 pushes the flywheel 150, it separates from the flywheel 150. Even after separation, the moving component 173 retains kinetic energy and continues to move forward, entering the receiving cavity through the inlet 175a and being stored there. This design allows the moving component 173 to be stored in the collector without falling out, facilitating its collection and enabling its reuse. The shape and size of the receiving cavity are not limited in this application; users can design it adaptively based on the size and quantity of the moving components 173.

[0075] In some embodiments, the collection member 175 is detachably connected to the housing 171. After the moving part 173 is stored in the collection member 175, the collection member 175 can be removed from the housing 171 to empty the moving part 173 inside the collection member 175 so that the moving part 173 can be reused.

[0076] In some embodiments, the outer casing 171 includes a bottom casing 1711 and a cover plate 1712. The guide member 172 and the collector 175 are both mounted on the bottom casing 1711. The cover plate 1712 is mounted on the bottom casing 1711 and surrounds the bottom casing 1711 to form a guide groove (1711a). The flywheel 150 is located between the bottom casing 1711 and the cover plate 1712. At least a portion of the flywheel 150 is located in the guide groove 1711a. The outlet 172d and the inlet 175a are both connected to the guide groove 1711a.

[0077] The bottom shell 1711 is fixedly connected to the backrest frame 110. In some embodiments, the bottom shell 1711 and the backrest frame 110 are fixedly connected by bolts. The bottom shell 1711 and the cover plate 1712 are arranged opposite to each other and fixedly connected. In some embodiments, the bottom shell 1711 and the cover plate 1712 are fixedly connected by bolts. After the cover plate 1712 is connected to the bottom shell 1711, they enclose a guide groove 1711a. The guide groove 1711a is used to guide the moving part 173. The outlet 172d communicates with the guide groove 1711a so that the guide part 172 enters the guide groove 1711a after being discharged from the outlet 172d. At least a portion of the flywheel 150 is located in the guide groove 1711a so that the moving part 173 in the guide groove 1711a can contact the peripheral wall of the flywheel 150 and drive the flywheel 150 to rotate. The inlet 175a is connected to the guide groove 1711a so that the moving part 173 in the guide groove 1711a can enter the receiving cavity through the inlet 175a.

[0078] It is easy to understand that both the bottom shell 1711 and the cover plate 1712 are provided with clearance through holes to avoid the synchronizing rod 140, so that the synchronizing rod 140 can pass through the cover plate 1712 and connect with the flywheel 150, and pass through the bottom shell 1711 and connect with the self-locking angle adjuster 130.

[0079] In some embodiments, a plurality of limiting grooves 150a are spaced apart on the outer periphery of the flywheel 150 along the circumference of the flywheel 150. The moving member 173 is spherical and has a plurality of such grooves. Under the action of the driving member 174, at least a portion of the moving member 173 can be located in the limiting grooves 150a to drive the flywheel 150 to rotate.

[0080] The moving part 173 is spherical, and at least a portion of the moving part 173 can be located within the limiting groove 150a. After the moving part 173 is discharged from the outlet 172d, the moving part 173 still has kinetic energy, and at least a portion of the moving part 173 will be located within the limiting groove 150a and in contact with the side wall of the limiting groove 150a. Because the moving part 173 has kinetic energy, the moving part 173 will move forward along the guide groove 1711a. The moving part 173 is in contact with the side wall of the limiting groove 150a, and thus the moving part 173 can drive the flywheel 150 to rotate. Under the action of multiple moving parts 173, the flywheel 150 can rotate continuously, thereby causing the backrest frame 110 to rotate forward and reset.

[0081] It is easy to understand that the dimension of channel 172a should be larger than the dimension of moving part 173 so that moving part 173 can move along channel 172a. In some embodiments, the cross-section of channel 172a is circular and moving part 173 is a steel ball.

[0082] In some embodiments, channel 172a includes a first channel 172b and a second channel 172c that are connected; the first channel 172b is arranged along the length direction of the synchronizing rod 140, the second channel 172c is arranged at an angle to the first channel 172b and is J-shaped, the outlet 172d is arranged on the side of the second channel 172c away from the first channel 172b, and the moving member 173 is arranged in the first channel 172b and / or the second channel 172c.

[0083] The first channel 172b is arranged along the length direction of the synchronizing rod 140, meaning that the length direction of the first channel 172b is parallel to the synchronizing rod 140. This arrangement of the first channel 172b along the length direction of the synchronizing rod 140 utilizes space in the width direction of the seat. The second channel 172c has a J-shaped design, utilizing space in the height and length directions of the seat. This design helps to reduce the external dimensions of the guide member 172, reduce the space occupied by the guide member 172, and facilitate the installation of the guide member 172. With this design, the drive member 174, guide member 172, guide groove 1711a, and collecting member 175 together form a racetrack-shaped structure. The angular arrangement can be a right angle, an obtuse angle, or an acute angle. In some embodiments, the first channel 172b and the second channel 172c are arranged perpendicularly.

[0084] In some embodiments, as shown in FIG2, the drive member 174 and the collector 175 are located above the guide member 172, which is located below it. The drive member 174 and the collector 175 are arranged side by side along the length of the seat, with the collector 175 located above the outlet 172d. When the drive member 174 is not activated, the moving member 173 is located within the arcuate section of the second channel 172 under the action of gravity. When the drive member 174 is activated, the moving member 173 moves upward along the arcuate section, passes through the guide groove 1711a, and enters the collector 175.

[0085] In some embodiments, the reset assembly 170 is disposed inside the backrest frame 110 and is located between the angle adjustment driver 160 and the backrest frame 110.

[0086] The backrest frame 110 has a connecting arm 113, a first support arm 111, and a second support arm 112. The first support arm 111 and the second support arm 112 are spaced apart. The connecting arm 113 connects the upper ends of the first support arm 111 and the second support arm 112 together. It is easy to understand that the lower backrest fixing base 120 and the self-locking angle adjuster 130 are both located at the lower ends of the first support arm 111 and the second support arm 112. The reset assembly 170 is located inside the backrest frame 110, that is, between the first support arm 111 and the second support arm 112, specifically on the side of the first support arm 111 near the second support arm 112, or on the side of the second support arm 112 near the first support arm 111. By placing the reset assembly 170 inside the backrest frame 110, the space between the first support arm 111 and the second support arm 112 can be utilized, reducing the space occupied by the quick-reset seat mechanism 100 in the length direction of the synchronizing rod 140.

[0087] In some embodiments, two self-locking angle adjusters 130 are provided, which are respectively located on the side of the first support arm 111 away from the second support arm 112 and on the side of the second support arm 112 away from the first support arm 111.

[0088] In some embodiments, two reset components 170 are provided, which are respectively located on the side of the first support arm 111 near the second support arm 112 and on the side of the second support arm 112 near the first support arm 111.

[0089] The working principle of the quick-reset seat mechanism 100 of this application is described below:

[0090] Under normal driving conditions, the occupants can control the angle adjustment driver 160 to drive the synchronous rod 140 to rotate, which in turn drives the rotating part of the self-locking angle adjuster 130 to rotate, thereby rotating the backrest frame 110 and adjusting the tilt angle of the backrest frame 110 to a comfortable state.

[0091] When a vehicle collides or brakes suddenly, the collision sensor inside the vehicle transmits the collision signal to the vehicle ECU controller. After logical calculation, the ECU controller sends an ignition command signal to the igniter. Upon receiving the ignition command signal, the igniter ignites the explosive, causing it to explode. After the explosion, the high-pressure gas generated by the explosion expands rapidly in channel 172a, which in turn pushes the steel balls to move within channel 172a. Finally, multiple steel balls enter the guide groove 1711a sequentially through outlet 172d. The moving part 173 moves towards the side of outlet 172d and is discharged through outlet 172d. After the moving part 173 is discharged from the outlet 172d, it still retains kinetic energy. The moving part 173 contacts the side wall of the limiting groove 150a, causing the flywheel 150 to rotate. Under the action of multiple steel balls, the flywheel 150 can continue to rotate, causing the backrest frame 110 to rotate forward and reset. This, in turn, drives the self-locking angle adjuster 130 to rotate, further rotating the backrest frame 110 forward and resetting it. This absorbs the forward energy of the seat and simultaneously causes the human torso to quickly reset, reducing the impact force transmitted to the seat and the passenger's spine, thus improving seat safety. Furthermore, due to the self-locking angle adjuster 130, when the backrest frame 110 resets to any angle, the backrest frame 110 and the lower fixed base 120 remain in a self-locking state, ensuring that the backrest frame 110 remains effectively locked under complex conditions such as secondary collisions, further enhancing safety.

[0092] Based on the same inventive concept, this application also provides a seat, which includes the aforementioned quick-reset seat mechanism 100.

[0093] Seats typically also include a seat cushion frame and sponge padding fitted onto the seat cushion frame and backrest frame 110. The structure of a seat is diverse and is not limited in this application.

[0094] Since the seat includes the quick-reset seat mechanism 100 of this application, it naturally has all the beneficial effects of the quick-reset seat mechanism 100 of this application, which will not be elaborated here.

[0095] Based on the same inventive concept, this application also provides a vehicle, which includes the above-described quick-reset seat mechanism 100 or seat.

[0096] The vehicle can be an electric vehicle, a gasoline vehicle, a truck, a car, etc., and is not limited thereto in this application. Since the seat includes the quick-reset seat mechanism of this application, it naturally has all the beneficial effects of the quick-reset seat mechanism of this application, which will not be elaborated here.

[0097] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0098] 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 cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0099] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A quick-recoverable seat mechanism, characterized by comprising: include: The backrest frame (110), the lower backrest fixing base (120), and the self-locking angle adjuster (130) are provided. The lower backrest fixing base (120) is used to fix the backrest to the seat cushion frame. The backrest frame (110) and the lower backrest fixing base (120) are rotatably connected by the self-locking angle adjuster (130). A synchronizing rod (140) and a flywheel (150), wherein the synchronizing rod (140) is fixedly connected to the self-locking angle adjuster (130), and the flywheel (150) is fixedly connected to the synchronizing rod (140); An angle adjustment driver (160) is connected to the synchronizing rod (140) to adjust the angle of the backrest frame (110); A reset assembly (170) is installed in the backrest frame (110), and the flywheel (150) is located inside the reset assembly (170). The reset assembly (170) can drive the flywheel (150) to rotate so that the backrest frame (110) is reset.

2. The quick-return seat mechanism according to claim 1, characterized in that The reset assembly (170) includes: The outer shell (171) is fixedly connected to the backrest frame (110); A guide (172) and a moving part (173) are provided. The guide (172) is fixedly connected to the housing (171). The guide (172) has a channel (172a) and an outlet (172d) communicating with the channel (172a). The moving part (173) is located inside the channel (172a). The flywheel (150) is located next to the outlet (172d). A drive member (174) is mounted on the guide member (172) and located on the side of the moving member (173) away from the outlet (172d). The drive member (174) is capable of driving the moving member (173) to exit from the outlet (172d) so that the moving member (173) drives the flywheel (150) to rotate.

3. The quick-return seat mechanism according to claim 2, wherein The reset assembly (170) also includes: A collector (175) is disposed next to the drive member (174) and has a receiving cavity and an inlet (175a) communicating with the receiving cavity. The collector (175) is mounted on the housing (171), and the inlet (175a) is disposed opposite to the outlet (172d) of the guide member (172) so that the moving member (173) can enter the receiving cavity through the inlet (175a).

4. The quick-return seat mechanism of claim 3, wherein The outer casing (171) includes: The bottom shell (1711), the guide (172) and the collecting member (175) are all installed on the bottom shell (1711), and the bottom shell (1711) is fixedly connected to the backrest frame (110); A cover plate (1712) is installed on the bottom shell (1711) and surrounds the bottom shell (1711) to form a guide groove (1711a). The flywheel (150) is located between the bottom shell (1711) and the cover plate (1712), and at least a portion of the flywheel (150) is located in the guide groove (1711a). The outlet (172d) and the inlet (175a) are both connected to the guide groove (1711a).

5. A quick-return seat mechanism according to claim 3 or 4, characterised in that, Along the circumference of the flywheel (150), a plurality of limiting grooves (150a) are spaced apart on the outer periphery of the flywheel (150). The moving member (173) is spherical and has a plurality of such grooves. Under the action of the driving member (174), at least a portion of the moving member (173) can be located in the limiting grooves (150a) to drive the flywheel (150) to rotate.

6. The quick-return seat mechanism of claim 5, wherein, The channel (172a) includes a first channel (172b) and a second channel (172c) that are connected; the first channel (172b) is arranged along the length direction of the synchronizing rod (140), the second channel (172c) is arranged at an angle to the first channel (172b) and the second channel (172c) is J-shaped, the outlet (172d) is arranged on the side of the second channel (172c) away from the first channel (172b), and the moving part (173) is arranged in the first channel (172b) and / or the second channel (172c).

7. A quick-return seat mechanism according to any one of claims 2 to 6, wherein The drive unit (174) includes: Explosives, said explosives being disposed within the passage (172a); Ignition device, which is mounted on the guide (172), is used to ignite the explosive.

8. The quick-return seat mechanism according to any one of claims 1-7, characterized in that The reset component (170) is disposed inside the backrest frame (110), and the reset component (170) is located between the angle adjustment driver (160) and the backrest frame (110).

9. A seat, characterized by Includes the quick-reset seat mechanism (100) according to any one of claims 1-8.

10. A vehicle characterized by comprising: Includes the quick-reset seat mechanism (100) according to any one of claims 1-8, or includes the seat according to claim 9.

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