Multi-person automobile seat

Abstract

The utility model provides a multi-person automobile seat. The multi-person automobile seat comprises a backrest framework assembly, a seat basin mechanism and a multi-angle adjuster coaxial mechanism. The multi-recliner coaxial mechanism comprises two recliner components which are coaxially arranged on two sides of the backrest framework assembly, and each recliner component comprises two or more recliners which are coaxially arranged, so that the backrest framework assembly is rotatably mounted on the seat basin mechanism through the two recliner components. The utility model relates to the technical field of automobile seats, and can solve the problem that a seat framework in the prior art cannot meet the torque strength requirement.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, in particular to a multi-person automobile seat. Background Art

[0002] As the quality of life of the public improves, the automotive industry is paying more and more attention to rear seats. The integrated rear seats are also in demand for camping mode, movie-watching mode, sleeping mode, and zero-pressure mode. In the current zero-pressure mode, in order to ensure the safety of passengers, the seat belt needs to be integrated into the seat, and adding an integrated seat belt requires the seat back to have a large torque strength.

[0003] Integrated safety belts are currently only used in single-seat cars. For example, Chinese utility model patent CN217022281U discloses a seat back with integrated safety belts. However, in the rear-row integrated multi-person seats, two or even three safety belts need to be integrated. The seat back needs a higher torque strength during rotation, and the recliners on the market cannot meet the torque strength requirements.

[0004] At the same time, for camping mode, sleeping mode, etc., the seat needs to be laid flat at 180 degrees, and a larger backrest torque strength is also required, but the seat frame of the existing technology cannot provide sufficient torque strength, and it is necessary to add a support structure at the bottom of the backrest to ensure the flat function of the seat, which is costly, complex, and takes up more space. Therefore, it is necessary to provide a multi-person car seat that can solve the problem that the seat frame in the existing technology cannot meet the torque strength requirements. Utility Model Content

[0005] In view of the above situation, the utility model provides a multi-person automobile seat, which can solve the problem in the prior art that the seat frame cannot meet the torque strength requirement.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a multi-person car seat, including a backrest frame assembly, a seat basin mechanism and a multi-angle adjuster coaxial mechanism; the multi-angle adjuster coaxial mechanism includes two groups of angle adjuster assemblies coaxially arranged on both sides of the backrest frame assembly, and each group of angle adjuster assemblies includes two or more coaxially arranged angle adjusters, so that the backrest frame assembly can be rotatably mounted on the seat basin mechanism through the two groups of angle adjuster assemblies.

[0007] In the embodiments of the utility model, each group of the recliner assemblies comprises a second recliner and a first recliner; the backrest frame assembly comprises a backrest side plate assembly, and the second recliner and the first recliner of each group of the recliner assemblies are fixedly arranged on the backrest side plate assembly, and are passed through by a transmission rod to form a coaxial arrangement, so that the second recliners and the first recliners of the two groups of recliner assemblies move synchronously through the transmission rod.

[0008] In the embodiment of the utility model, in each group of the recliner assemblies, the sum of the torque strengths of the second recliner and the first recliner is not less than the torque strength requirement of the corresponding side of the seat.

[0009] In the embodiment of the utility model, the seat basin mechanism includes a seat basin frame, a connecting rod and a seat basin base; the backrest side panel assembly includes a lower connecting plate fixedly connected to the seat basin base and an inner backrest panel rotatable relative to the lower connecting plate; one side of the seat basin frame is hinged to the seat basin base through a connecting rod, and the other side of the seat basin frame is hinged to the inner backrest panel, so that the inner backrest panel, the seat basin frame, the connecting rod and the lower connecting plate form a transmission four-bar structure.

[0010] In the embodiment of the utility model, a second elastic reset member is installed on the inner side plate of the backrest, and two ends of the second elastic reset member are fixedly connected to the inner side plate of the backrest and the lower connecting plate respectively.

[0011] In an embodiment of the utility model, the backrest side panel assembly also includes an outer backrest panel; the inner backrest panel is fixedly connected to the backrest back plate, the two angle adjustment rings of the second angle adjuster are respectively fixedly connected to the inner backrest panel and one surface of the lower connecting plate, and the two angle adjustment rings of the first angle adjuster are respectively fixedly connected to the other surface of the lower connecting plate and the outer backrest panel; the outer backrest panel is fixedly connected to the inner backrest panel, and the transmission rod passes through the lower connecting plate, the inner backrest panel and the outer backrest panel.

[0012] In the embodiment of the utility model, a rear limit stop point and a front limit stop point are formed on the outer side plate of the backrest; a stop block is formed on the lower connecting plate, and when the backrest frame assembly rotates to the frontmost position, the stop block conflicts with the front limit stop point, and when the backrest frame assembly rotates to the rearmost position, the stop block conflicts with the rear limit stop point.

[0013] In the embodiment of the utility model, the final position includes a lying flat position.

[0014] In the embodiment of the utility model, when the backrest frame assembly is rotated to the lying-flat position, the seat basin frame is lifted until the seat surface is higher than the safety belt buckle or is flush with the top of the safety belt buckle.

[0015] In the embodiment of the utility model, each group of the recliner assemblies further comprises a manual unlocking mechanism, and the manual unlocking mechanisms of the two groups of recliner assemblies are coaxially mounted on the transmission rod.

[0016] In an embodiment of the utility model, the manual unlocking mechanism includes an unlocker, a first elastic reset member and an unlocking handle; the unlocker is fixedly arranged on the unlocking handle, the transmission rod passes through the first elastic reset member and the unlocker, and the two ends of the first elastic reset member are respectively fixedly connected to the unlocker and the outer plate of the backrest.

[0017] In the embodiment of the utility model, each group of the angle adjuster components includes a first electric angle adjuster and a second electric angle adjuster.

[0018] In the embodiment of the utility model, each group of the angle adjuster assemblies further includes a motor, and the motors of the two groups of angle adjuster assemblies are coaxially mounted on the transmission rod.

[0019] The utility model adopts the above technical solution, so that it has the following beneficial effects:

[0020] (1) The utility model is provided with a multi-angle adjuster coaxial mechanism. By coaxially arranging multiple angle adjusters on both sides of the backrest frame assembly, multiple angle adjusters are used to provide greater torque strength, thereby meeting the torque strength requirements of the backrest frame assembly of a multi-person seat, especially the greater torque requirement of rotating a multi-person seat with an integrated safety belt to a lying position, ensuring safe and stable rotation of the backrest frame assembly, and eliminating the need to set up a supporting structure for the backrest frame assembly, thereby simplifying the structure, reducing costs, and reducing occupied space.

[0021] (2) Since the utility model is provided with a multi-recliner coaxial mechanism, the single-side quantity and specification of the recliners can be adaptively adjusted according to the torque strength requirements of the backrest frame assembly on the side where the recliner is located. The recliners have high combination flexibility and can be applied to double, triple and other multi-person car seats, with a wide range of applications.

[0022] (3) Since the utility model is provided with a transmission four-bar linkage, when the backrest frame assembly rotates backward, the transmission four-bar linkage is linked by the inner side plate of the backrest, so that the seat basin frame is synchronously rotated and lifted upward, so that when the backrest frame assembly is rotated to a lying position, the backrest, the seat cushion and the leg rest can be in the same horizontal plane, meeting the passenger's lying flat needs and improving the comfort of the seat; when the backrest frame assembly rotates forward, the transmission four-bar linkage can also be linked to the transmission four-bar linkage to make the seat basin frame synchronously rotate downward and drop, and the riding comfort of the car seat when the angle is adjusted is improved through the linkage control of the backrest frame assembly and the seat basin frame.

[0023] (4) Since the utility model is provided with a transmission four-bar linkage, when the backrest frame assembly rotates backward to a lying position, the seat basin frame is lifted upward along with the backrest frame assembly until the seat surface is higher than the seat belt buckle or flush with the top of the seat belt buckle, thereby hiding the seat belt buckle under the foam of the seat cushion, avoiding exposure of the seat belt buckle, thereby improving the aesthetics and comfort of the car seat; at the same time, when the backrest frame assembly rotates forward to the frontmost position, the seat basin frame drops below the seat belt buckle, thereby exposing the seat belt buckle, which is convenient for the insertion and use of the seat belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional diagram of the multi-person automobile seat of the utility model (manual control);

[0025] Figure 2 It is an exploded view of the multi-person car seat of the utility model (manual control, the basin mechanism is not shown);

[0026] Figure 3 It is an exploded view of the backrest side panel assembly of the multi-person vehicle seat of the utility model;

[0027] Figure 4 It is an exploded view of the manual unlocking mechanism in the multi-person vehicle seat of the utility model;

[0028] Figure 5 It is an exploded view of the transmission four-link mechanism in the multi-person car seat of the utility model;

[0029] Figure 6 It is an exploded view of the multi-person car seat of the utility model (electric control);

[0030] Figure 7 It is a three-dimensional diagram of the utility model multi-person automobile seat (electrically controlled);

[0031] Figure 8 It is a side view of the multi-person car seat of the utility model (electrically controlled);

[0032] Fig. 9 It is an exploded view of the motor, the first electric angle adjuster, the second electric angle adjuster and the transmission rod in the multi-person car seat of the utility model;

[0033] Fig.10 It is a schematic diagram of the use of the multi-person car seat of the utility model (electric control, frontmost position);

[0034] Fig.11 This is a schematic diagram of the frontmost position limit of the multi-person vehicle seat of the utility model;

[0035] Fig.12 It is a side view of the multi-person car seat of the utility model (electrically controlled, lying flat position);

[0036] Fig.13 It is a schematic diagram of the use of the multi-person car seat of the utility model (electric control, lying flat position);

[0037] Fig.14 It is a schematic diagram of the last position limit of the multi-person vehicle seat of the utility model;

[0038] Fig.15 It is a schematic diagram of the safety belt buckle position of a multi-person car seat of the utility model (non-lying flat position);

[0039] Fig.16 yes Fig.15 A partial enlarged view of

[0040] Fig.17 yes Fig.15 Side view of

[0041] Fig.18 It is a schematic diagram of the safety belt buckle position of the multi-person car seat of the utility model (lying flat position);

[0042] Fig.19 yes Fig.18 A partial enlarged view of

[0043] Fig. 20 yes Fig.18 Side view of.

[0044] The corresponding relationship between the reference numerals and the components is as follows:

[0045] 1 backrest frame assembly, 2 seat basin frame, 3 connecting rod, 4 seat basin base, 5 motor, 6 first angle adjuster, 7 lower connecting plate, 8 second angle adjuster, 9 rear limit stop point, 10 stopper, 11 front limit stop point, 12 unlocker, 13 first elastic reset member, 14 second elastic reset member, 15 transmission rod, 16 unlocking handle, 17 first electric angle adjuster, 18 second electric angle adjuster, 19 backrest plate, 20 backrest inner side plate, 21 backrest outer side plate, 22 backrest side plate assembly, 23 safety belt buckle, 24 seat seat. DETAILED DESCRIPTION

[0046] To facilitate understanding of the present invention, the following description is provided in conjunction with the accompanying drawings and embodiments.

[0047] Please see attached Figure 1 and attached Figure 7 A multi-person car seat comprises a backrest frame assembly 1, a seat pot mechanism and a multi-recliner coaxial mechanism; the multi-recliner coaxial mechanism comprises two sets of recliner assemblies coaxially arranged on both sides of the backrest frame assembly 1, and each set of recliner assemblies comprises two or more coaxially arranged recliners, so that the backrest frame assembly 1 can be rotatably mounted on the seat pot mechanism through the two sets of recliner assemblies.

[0048] Recliner assemblies are arranged on both sides of the backrest frame assembly 1 of the multi-person seat, and each group of recliner assemblies is arranged with at least two recliners. The coaxial arrangement of at least four recliners on both sides provides a larger torque strength to meet the rotation requirements of the backrest frame assembly 1 of the multi-person car seat, and can ensure the stability of the backrest frame assembly 1 when the backrest frame assembly 1 is rotated to the final position (the final position may include a lying flat position), without the need to set a supporting structure under the backrest frame assembly 1.

[0049] At the same time, through the coaxial arrangement of the angle adjusters, the synchronous movement of all the angle adjusters can be achieved, which makes the driving method simpler and the structural arrangement more concise while providing sufficient torque strength.

[0050] The two sets of angle adjuster components are both controlled by manual drive mode, and can also be controlled by electric drive mode.

[0051] For manual drive control of the recliner assembly, see the attached Figure 1 To Attachment Figure 3 Each group of the recliner assemblies includes a second recliner 8 and a first recliner 6; the backrest frame assembly 1 includes a backrest side plate assembly 22, and the second recliner 8 and the first recliner 6 of each group of the recliner assemblies are fixedly arranged on the backrest side plate assembly 22, and are passed through by the transmission rod 15 to form a coaxial arrangement, so that the second recliners 8 and the first recliners 6 of the two groups of recliner assemblies move synchronously through the transmission rod 15.

[0052] Since the torque strength that can be provided by the recliners of the prior art is limited, in order to meet the torque strength requirements of the back frame assembly 1 of a multi-person seat, at least two recliners need to be provided on each side of the back frame assembly 1. The number and torque strength of the recliners in each set of recliner assemblies can be adaptively adjusted according to the actual torque requirements of the corresponding side of the back frame assembly 1, thereby being able to meet the torque strength requirements of the back frame assembly 1 of a multi-person seat, especially being able to meet the torque strength requirements of the back frame assembly 1 with an integrated safety belt.

[0053] In each group of the recliner assemblies, the sum of the torque strengths of the second recliner 8 and the first recliner 6 is not less than the torque strength requirement of the corresponding side of the seat.

[0054] A pair of second recliners 8 and a pair of first recliners 6 arranged on both sides of the backrest frame assembly 1 move together through the transmission rod 15 to provide greater torque strength. The second recliners 8 and the first recliners 6 can have the same specifications or different specifications. It is only necessary to ensure that the sum of the torque strengths of the second recliners 8 and the first recliners 6 is not less than the torque strength requirements of the corresponding side of the seat where they are located. When the seat back is lying flat, there is no need to install a support structure under the backrest frame assembly 1, which greatly reduces the structural design and installation space requirements of the seat.

[0055] Since the structural forms of the backrest frame assembly 1 are diverse, such as a double seat, a triple seat, etc., the torque strength requirements on both sides may be the same or different. Therefore, the sum of the torque strengths of the angle adjusters on both sides of the backrest frame assembly 1 may be the same or different, and the angle adjusters can be flexibly selected and combined according to actual usage requirements.

[0056] Please see attached Figure 1 To Attachment Figure 3 and attached Figure 5The seat bowl mechanism includes a seat bowl frame 2, a connecting rod 3 and a seat bowl base 4; the backrest side panel assembly 22 includes a lower connecting plate 7 fixedly connected to the seat bowl base 4 and a backrest inner side panel 20 rotatable relative to the lower connecting plate 7; one side of the seat bowl frame 2 is hinged to the seat bowl base 4 through the connecting rod 3, and the other side of the seat bowl frame 2 is hinged to the backrest inner side panel 20, so that the backrest inner side panel 20, the seat bowl frame 2, the connecting rod 3 and the lower connecting plate 7 form a transmission four-bar structure.

[0057] When the backrest frame assembly 1 rotates backward to the lying flat position, the four-bar linkage structure is driven through the inner side plate 20 of the backrest, so that the seat basin frame 2 rotates synchronously, and the seat basin frame 2 is lifted upward by a certain angle, so that the backrest, seat cushion and leg rest can be adjusted to the same horizontal plane to realize the lying flat function of the seat, thereby improving the comfort of the seat.

[0058] When the backrest frame assembly 1 is rotated backward or forward to any position between the frontmost position and the lying position, the four-bar linkage structure can be linked to the inner side plate 20 of the backrest, so that the seat basin frame 2 can be synchronously rotated upward or downward by a corresponding angle to ensure the comfort of the seat.

[0059] Preferably, the bidet frame 2, the connecting rod 3 and the bidet base 4 can be installed and connected by using sleeves and bolts, which has a simple structure and is easy to assemble.

[0060] Please see attached Figure 3 The backrest side panel assembly 22 also includes a lower connecting plate 7 and an outer backrest panel 21; the inner backrest panel 20 is fixedly connected to the backrest back plate 19, the two angle adjustment rings of the second angle adjuster 8 are respectively fixedly connected to the inner backrest panel 20 and one surface of the lower connecting plate 7, and the two angle adjustment rings of the first angle adjuster 6 are respectively fixedly connected to the other surface of the lower connecting plate 7 and the outer backrest panel 21; the upper part of the outer backrest panel 21 is fixedly connected to the inner backrest panel 20, and the transmission rod 15 passes through the lower connecting plate 7, the inner backrest panel 20 and the outer backrest panel 21.

[0061] Preferably, two screw holes are provided at the bottom of the lower connecting plate 7 and the rear side of the seat basin base 4, so that the lower connecting plate 7 is fixedly connected to the rear side of the seat basin base 4 by bolts. The two angle adjustment rings of the first recliner 6 are respectively welded on the outer side surface of the lower connecting plate 7 (i.e., the surface away from the backrest frame assembly 1) and the lower inner side surface of the backrest outer side plate 21 (i.e., the surface close to the backrest frame assembly 1), and the two angle adjustment rings of the second recliner 8 are respectively welded on the inner side surface of the lower connecting plate 7 and the lower inner side surface of the backrest inner side plate 20, and the upper part of the backrest outer side plate 21 is welded on the backrest inner side plate 20. A hinge hole is provided at the bottom of the backrest inner side plate 20 for hinge connection with the rear end of the seat basin frame 2, and the transmission rod 15 passes through and connects the first recliner 6 and the second recliner 8.

[0062] When the transmission rod 15 rotates, it drives one of the angle adjustment rings of the first recliner 6 and the second recliner 8 to rotate. By utilizing the relative rotation of the two angle adjustment rings of the first recliner 6 and the two angle adjustment rings of the second recliner 8, the inner side plate 20 of the backrest can drive the backrest frame assembly 1 to rotate. At the same time, the motion is transmitted to the seat basin frame 2 through the inner side plate 20 of the backrest, so that the seat basin frame 2 can realize the corresponding angle rotation through the transmission four-bar structure.

[0063] Please see attached Figure 1 and attached Figure 2 Each set of the recliner assemblies further includes a manual unlocking mechanism, and the manual unlocking mechanisms of the two sets of recliner assemblies are coaxially mounted on the transmission rod 15.

[0064] When a manual unlocking mechanism is used, the first recliner 6 and the second recliner 8 adopt manually controlled recliners in the prior art. The manual unlocking mechanism drives the transmission rod 15 to rotate a certain angle to unlock the first recliner 6 and the second recliner 8, so that the two adjustment rings of the first recliner 6 and the second recliner 8 can rotate relative to each other, thereby realizing the rotation adjustment of the backrest frame assembly 1.

[0065] Please see attached Figure 2 and attached Figure 4 The manual unlocking mechanism includes an unlocker 12, a first elastic reset member 13 and an unlocking handle 16; the unlocker 12 is fixedly arranged on the unlocking handle 16, the transmission rod 15 passes through the first elastic reset member 13 and the unlocker 12, and the two ends of the first elastic reset member 13 are respectively fixedly connected to the unlocker 12 and the outer side plate 21 of the backrest.

[0066] Preferably, one end of the unlocker 12 can be fixedly connected to the unlocking handle 16 by means of a key connection or a slot and strip insertion, and the transmission rod 15 is connected to the unlocking handle 16 through a key, so that the transmission rod 15 can be driven to rotate through the unlocking handle 16 via the unlocking handle 16, and the transmission rod 15 can be rotated to the unlocking position or locking position of the first recliner 6 and the second recliner 8.

[0067] Preferably, the first elastic reset member 13 can be a coil spring. When the unlocking handle 16 is rotated to unlock the first angle adjuster 6 and the second angle adjuster 8, the first elastic reset member 13 accumulates force. After the unlocking handle 16 is released, the elastic force of the first elastic reset member 13 is used to reset the unlocking handle 16 and drive the transmission rod 15 to rotate to the locking position of the first angle adjuster 6 and the second angle adjuster 8, so that the first angle adjuster 6 and the second angle adjuster 8 are locked.

[0068] When the unlocking handle 16 rotates, since the unlocking handles 16 on both sides of the backrest frame assembly 1 are coaxially installed at the two ends of the transmission rod 15, when the unlocking handle 16 on one side is rotated, the unlocking handle 16 on the other side is synchronously rotated through the transmission rod 15, ensuring that the adjusters on both sides are unlocked or locked synchronously.

[0069] The structure of the manually controlled recliner and its unlocking and locking working process are both prior art and will not be described in detail here.

[0070] Please see attached Figure 2 A second elastic reset member 14 is installed on the inner side plate 20 of the backrest, and two ends of the second elastic reset member 14 are fixedly connected to the inner side plate 20 of the backrest and the lower connecting plate 7 respectively.

[0071] Preferably, the second elastic reset member 14 can be a coil spring. When the backrest frame assembly 1 rotates backward, the second elastic reset member 14 stores force to facilitate the forward rotation and reset of the backrest frame assembly 1.

[0072] For electric drive control of the recliner assembly, see the attached Figure 7 and attached Figure 8 Each group of the recliner assemblies includes a first electric recliner 17 and a second electric recliner 18, so as to facilitate the rotation of the first electric recliner 17 and the second electric recliner 18 to be controlled by electric control.

[0073] The arrangement of a pair of first electric recliners 17 and a pair of second electric recliners 18 on the transmission rod 15 and the backrest side panel assembly 22 is the same as the arrangement of a pair of first recliners 6 and a pair of second recliners 8 on the transmission rod 15 and the backrest side panel assembly 22, and the transmission process of a pair of first electric recliners 17 and a pair of second electric recliners 18 to the transmission four-bar structure is the same as the transmission process of a pair of first recliners 6 and a pair of second recliners 8 to the transmission four-bar structure, only the driving method of the recliner is different. During installation, the first electric recliner 17 can replace the first recliner 6, and the second electric recliner 18 can replace the second recliner 8.

[0074] Please see attached Figure 7 To Attachment Fig. 9 Each group of the recliner assemblies further includes a motor 5. The motors 5 of the two groups of recliner assemblies are coaxially mounted on a transmission rod 15, and are used to synchronously drive a pair of first electric recliners 17 and a pair of second electric recliners 18 through the transmission rod 15.

[0075] The first electric recliner 17 and the second electric recliner 18 are electrically controlled recliners in the prior art. When the motor 5 drives the transmission rod 15 to rotate, the two angle adjustment rings of the first electric recliner 17 and the second electric recliner 18 are synchronously driven to rotate relative to each other, so as to realize the rotation adjustment of the backrest frame assembly 1. The rotation adjustment process of the backrest frame assembly 1 by the first electric recliner 17 and the second electric recliner 18 is the same as the rotation adjustment process of the backrest frame assembly 1 by the first recliner 6 and the second recliner 8, which will not be repeated here.

[0076] The motors 5 on both sides of the transmission rod 15 run synchronously with the same parameters, so that the transmission rod 15 can rotate stably in the forward or reverse direction. The motor 5 can adopt a motor with forward and reverse rotation functions in the prior art, and the motor specifications can be adaptively selected according to actual driving requirements.

[0077] Since the motor 5 has the functions of forward and reverse rotation, the forward and backward rotation control of the backrest frame assembly 1 can be realized, and the second elastic reset member 14 can be provided or not provided according to needs.

[0078] The structure of the electrically controlled angle adjuster and its movement working process are both prior art and will not be described in detail here.

[0079] Please see attached Fig.15 To Attachment Fig. 20 When the backrest frame assembly 1 is rotated to the lying position, the seat basin frame 2 is rotated until the seat surface 24 is higher than the seat belt buckle 23 or is flush with the top of the seat belt buckle 23, so that the seat belt buckle 23 is hidden in the seat; when the backrest frame assembly 1 is rotated to the frontmost position, the seat basin frame 2 is rotated until the seat surface 24 is lower than the seat belt buckle 23, so that the seat belt buckle 23 is exposed from the seat surface 24.

[0080] When the backrest frame assembly 1 rotates backward, the rear end of the seat frame 2 gradually rises upward relative to the safety belt buckle 23, so that the safety belt buckle 23 can be hidden under the seat surface 24 in the lying position without being exposed, which can improve the aesthetics and lying comfort.

[0081] When the backrest frame assembly 1 rotates forward, the rear end of the seat frame 2 gradually drops relative to the safety belt buckle 23, so that the safety belt buckle 23 can protrude above the seat surface 24 at the frontmost position, which is convenient for the insertion and use of the safety belt.

[0082] Please see attached Fig.10 To Attachment Fig.14 A rear limit stop point 9 and a front limit stop point 11 are formed on the outer side plate 21 of the backrest; a stop block 10 is formed on the lower connecting plate 7. When the backrest frame assembly 1 rotates to the frontmost position, the stop block 10 conflicts with the front limit stop point 11. When the backrest frame assembly 1 rotates to the rearmost position or the lying position, the stop block 10 conflicts with the rear limit stop point 9.

[0083] The rear limit stop point 9 and the front limit stop point 11 on the outer side plate 21 of the backrest rotate synchronously with the backrest frame assembly 1. The stop block 10 cooperates with the rear limit stop point 9 or the front limit stop point 11 to limit the rotation angle of the outer side plate 21 of the backrest, thereby limiting the rotation angle of the backrest frame assembly 1 so that it can rotate between the frontmost position and the rearmost position.

[0084] The specific arrangement positions of the rear limit stop point 9 , the stop block 10 and the front limit stop point 11 can be adaptively adjusted according to the rotation angle requirement of the backrest frame assembly 1 .

[0085] Please see attached Figure 1 To Attachment Figure 5 , the use process and working principle of the utility model are (manual control):

[0086] The user rotates the unlocking handle 16 on one side, and the unlocking handle 16 drives the transmission rod 15 to rotate through the unlocking device 12, and the transmission rod 15 drives the first recliner 6 and the second recliner 8 to rotate to the unlocking position. At this time, the first elastic reset member 13 accumulates force.

[0087] The user uses the body gravity to push the backrest frame assembly 1 backward, so that the backrest frame assembly 1 can be stably rotated downward to the desired angle under the rotation of a pair of first angle adjusters 6 and a pair of second angle adjusters 8. At the same time, the inner side plate 20 of the backrest rotates synchronously with the backrest frame assembly 1 and is transmitted to the seat frame 2, so that the seat frame 2, the connecting rod 3 and the seat base 4 are synchronously linked, and the seat frame 2 is synchronously lifted upward by a corresponding angle, so that the angle formed by the backrest frame assembly 1 and the seat frame 2 can ensure the comfort of the seat. At this time, the second elastic reset member 14 accumulates force.

[0088] Please see attached Fig.13 and attached Fig.14 , the backrest frame assembly 1 can be rotated backward to a lying flat position, and the rear limit stop point 9 conflicts with the stopper 10. At this time, the seat frame 2 is lifted to the maximum angle, so that the backrest, seat cushion and leg rest can be on the same horizontal plane without step difference. The entire car seat is in a flat lying state, which effectively improves the riding comfort. And because at least four angle adjusters are arranged on both sides of the backrest frame assembly 1, sufficient torque strength can be provided to meet the stability of the backrest frame assembly 1 in the lying flat position, and there is no need to set a support structure under the backrest frame assembly 1.

[0089] Please see attached Fig.15 and attached Fig.16 At the same time, due to the lifting of the seat pan frame 2, the seat pan frame 2 is higher than the safety belt buckle 23, and the safety belt buckle can be hidden under the seat seat 24 without being exposed. It is not only beautiful but also more comfortable when lying down.

[0090] Release the unlocking handle 16, and under the elastic force of the first elastic reset member 13, the transmission rod 15 rotates in the opposite direction to the locking position of the first recliner 6 and the second recliner 8, limiting the rotation of the two angle adjustment rings of the first recliner 6 and the second recliner 8, thereby locking the backrest frame assembly 1 at the corresponding angle.

[0091] When the backrest frame assembly 1 needs to be rotated forward, the unlocking handle 16 is rotated to unlock the first recliner 6 and the second recliner 8, and the user does not apply force to the backrest frame assembly 1 with his body, and the backrest frame assembly 1 is pushed forward by the elastic force of the second elastic reset member 14. When the backrest frame assembly 1 is rotated to the desired angle, the backrest frame assembly 1 is restrained from further rotation by the body, and the unlocking handle 16 is released to lock the first recliner 6 and the second recliner 8.

[0092] When the backrest frame assembly 1 is rotated forward to the frontmost position, the stopper 10 contacts the front limit stop point 11. Fig.11 As shown, the backrest frame assembly 1 is restricted from further forward rotation.

[0093] Please see attached Figure 6 To Attachment Fig. 20 , the use process and working principle of the utility model are (electric control):

[0094] The motors 5 on both sides are started synchronously to make the transmission rod 15 rotate backward and drive a pair of coaxially arranged first electric angle adjusters 17 and a pair of second electric angle adjusters 18 to rotate synchronously, so that the backrest frame assembly 1 can rotate backward. After the backrest frame assembly 1 rotates to the required angle, the motor 5 is turned off to lock the backrest frame assembly 1 at the corresponding angle.

[0095] The backrest frame assembly 1 can be rotated to a lying position or a final position under the drive of the motor 5 , and its working process is the same as the manual control working process, which will not be repeated here.

[0096] When the backrest frame assembly 1 needs to be rotated forward, the motor 5 rotates in the opposite direction, causing the transmission rod 15 to rotate forward and driving a pair of first electric angle adjusters 17 and a pair of second electric angle adjusters 18 to rotate, so that the backrest frame assembly 1 can be rotated forward to any angle, and the motor 5 can be turned off.

[0097] When the backrest frame assembly 1 is rotated forward to the frontmost position, the stopper 10 abuts against the front limit stop point 11 to limit the backrest frame assembly 1 from further rotating forward.

[0098] The utility model is described in detail above with reference to the accompanying drawings and embodiments. A person skilled in the art can make various variations of the utility model according to the above description. Therefore, certain details in the embodiments should not constitute a limitation of the utility model, and the scope of protection of the utility model shall be defined by the scope of the attached claims.

Claims

1. A multi-person car seat, characterized in that: The invention comprises a backrest frame assembly (1), a seat basin mechanism and a multi-angle adjuster coaxial mechanism; the multi-angle adjuster coaxial mechanism comprises two sets of angle adjuster assemblies coaxially arranged on both sides of the backrest frame assembly (1), and each set of angle adjuster assemblies comprises two or more coaxially arranged angle adjusters, so that the backrest frame assembly (1) can be rotatably mounted on the seat basin mechanism through the two sets of angle adjuster assemblies.

2. The multi-person vehicle seat according to claim 1, characterized in that: Each group of the recliner assemblies comprises a second recliner (8) and a first recliner (6); the backrest frame assembly (1) comprises a backrest side plate assembly (22); the second recliner (8) and the first recliner (6) of each group of the recliner assemblies are fixedly arranged on the backrest side plate assembly (22) and are passed through by a transmission rod (15) to form a coaxial arrangement, so that the second recliners (8) and the first recliners (6) of the two groups of recliner assemblies move synchronously through the transmission rod (15).

3. The multi-person vehicle seat according to claim 2, characterized in that: In each group of the recliner assemblies, the sum of the torque strengths of the second recliner (8) and the first recliner (6) is not less than the corresponding side torque strength requirement of the seat.

4. The multi-person vehicle seat according to claim 2, characterized in that: The seat bowl mechanism comprises a seat bowl frame (2), a connecting rod (3) and a seat bowl base (4); the backrest side panel assembly (22) comprises a lower connecting plate (7) fixedly connected to the seat bowl base (4) and a backrest inner side panel (20) rotatable relative to the lower connecting plate (7); one side of the seat bowl frame (2) is hinged to the seat bowl base (4) through the connecting rod (3), and the other side of the seat bowl frame (2) is hinged to the backrest inner side panel (20), so that the backrest inner side panel (20), the seat bowl frame (2), the connecting rod (3) and the lower connecting plate (7) form a transmission four-bar structure.

5. The multi-person vehicle seat according to claim 4, characterized in that: A second elastic reset member (14) is installed on the inner side plate (20) of the backrest, and two ends of the second elastic reset member (14) are respectively fixedly connected to the inner side plate (20) of the backrest and the lower connecting plate (7).

6. The multi-person vehicle seat according to claim 4, characterized in that: The backrest side panel assembly (22) also includes an outer backrest panel (21); the inner backrest panel (20) is fixedly connected to the backrest back panel (19); the two angle adjustment rings of the second angle adjuster (8) are respectively fixedly connected to the inner backrest panel (20) and one surface of the lower connecting plate (7); the two angle adjustment rings of the first angle adjuster (6) are respectively fixedly connected to the other surface of the lower connecting plate (7) and the outer backrest panel (21); the outer backrest panel (21) is fixedly connected to the inner backrest panel (20); the transmission rod (15) passes through the lower connecting plate (7), the inner backrest panel (20) and the outer backrest panel (21).

7. The multi-person vehicle seat according to claim 6, characterized in that: The backrest outer side plate (21) is formed with a rear limit stop point (9) and a front limit stop point (11); the lower connecting plate (7) is formed with a stop block (10); when the backrest frame assembly (1) rotates to the frontmost position, the stop block (10) abuts against the front limit stop point (11); when the backrest frame assembly (1) rotates to the rearmost position, the stop block (10) abuts against the rear limit stop point (9).

8. The multi-person vehicle seat according to claim 7, characterized in that: The final position includes a lying flat position.

9. The multi-person vehicle seat according to claim 8, characterized in that: When the backrest frame assembly (1) is rotated to the lying position, the seat pan frame (2) is lifted until the seat surface (24) is higher than the safety belt buckle (23) or is flush with the top of the safety belt buckle (23).

10. The multi-person vehicle seat according to claim 2, characterized in that: Each group of the recliner assemblies further comprises a manual unlocking mechanism, and the manual unlocking mechanisms of the two groups of recliner assemblies are coaxially mounted on the transmission rod (15).

11. The multi-person vehicle seat according to claim 10, characterized in that: The manual unlocking mechanism comprises an unlocker (12), a first elastic reset member (13) and an unlocking handle (16); the unlocker (12) is fixedly arranged on the unlocking handle (16), the transmission rod (15) passes through the first elastic reset member (13) and the unlocker (12), and the two ends of the first elastic reset member (13) are respectively fixedly connected to the unlocker (12) and the outer side plate (21) of the backrest.

12. The multi-person vehicle seat according to claim 2, characterized in that: Each group of the angle adjuster components comprises a first electric angle adjuster (17) and a second electric angle adjuster (18).

13. The multi-person vehicle seat according to claim 12, characterized in that: Each group of the angle adjuster assemblies further comprises a motor (5), and the motors (5) of the two groups of angle adjuster assemblies are coaxially mounted on the transmission rod (15).

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