Seat adjusting device, seat set, and vehicle

Abstract

A seat adjusting device, comprising a first connecting member (11), a second connecting member (12), a first angle adjuster (13), and a rotating assembly (14), wherein the first connecting member (11) is connected to the first angle adjuster (13), the first angle adjuster (13) is connected to the rotating assembly (14), and the rotating assembly (14) is connected to the second connecting member (12); the first connecting member (11) and the second connecting member (12) are respectively used for connecting two adjacent seat backrests; when the first angle adjuster (13) is in an unlocked state, the rotating assembly (14) can rotate so as to facilitate adjustment of the seat backrests, and when the first angle adjuster (13) is in a locked state, the rotating assembly (14) is prohibited from rotating, so as to lock the seat backrests after adjustment. A seat set using the seat adjusting device, and a vehicle are also provided. According to the seat adjusting device, the upper space of a seat backrest is released, adjustment of seat backrests is facilitated, and the passenger comfort is improved.

Description

Seat adjustment, seat groups and vehicles

[0001] This application claims priority to Chinese patent application CN202311240621.2, filed on September 22, 2023, with the invention name “Seat adjustment device, seat group and vehicle”. The entire contents of the above Chinese patent application are incorporated into this application by reference. Technical Field

[0002] The present invention relates to the technical field of vehicles, and in particular provides a seat adjustment device, a seat group and a vehicle. Background Art

[0003] The rear seat backrests of passenger cars are generally divided into fixed and adjustable types. Fixed seats cannot be adjusted, while adjustable seats can adjust the seat backrests to tilt forward and backward to improve passenger comfort. Adjustable seats are divided into 4 / 6 and 4 / 2 / 4 types. The 4 / 6 type has two rear seat backrests, and the lengths of the two seat backrests in the Y-axis direction of the vehicle account for 40% and 60% of the rear seats respectively. The 4 / 2 / 4 type has three rear seat backrests, and the lengths of the three seat backrests in the Y-axis direction of the vehicle account for 40%, 20% and 40% of the rear seats respectively.

[0004] The existing 4 / 2 / 4 type is more flexible in the use of the rear seat backrest, but its structure is more complicated. It is necessary to set an independent upper lock at the upper end of the middle backrest to ensure structural stability. However, it sacrifices the upper end space of the middle backrest and cannot arrange a large armrest. At the same time, it reduces the comfort of the seat backrest. In addition, the existing middle backrest is not easy to adjust, which affects the passenger experience.

[0005] In summary, the existing middle backrest sacrifices the upper space and cannot be used to arrange a large armrest, and is not easy to adjust.

[0006] Accordingly, the art requires a new seat adjustment device, seat group and vehicle to solve the above problems.

[0007] Summary of the Invention

[0008] The present invention aims to solve the above technical problem, that is, to solve the problem that the existing middle backrest sacrifices the upper end space and cannot be arranged with a large armrest, and is not convenient for adjustment.

[0009] In a first aspect, the present invention provides a seat adjustment device, comprising a first connecting member, a second connecting member, a first recliner, and a rotating assembly;

[0010] The first connecting member is connected to the first angle adjuster, the first angle adjuster is connected to the rotating assembly, and the rotating assembly is connected to the second connecting member;

[0011] The first connecting member and the second connecting member are respectively used to connect two adjacent seat backs;

[0012] When the first recliner is in an unlocked state, the rotating assembly can rotate to facilitate seat back adjustment. When the first recliner is in a locked state, the rotating assembly is prohibited from rotating to achieve locking of the seat back after adjustment.

[0013] In the preferred technical solution of the above seat adjustment device, the rotating assembly includes a first transmission member and a second transmission member.

[0014] One end of the first transmission member is fixedly connected to the first recliner, the other end of the first transmission member is rotatably connected to one end of the second transmission member, and the other end of the second transmission member is rotatably connected to the second connecting member.

[0015] In the preferred technical solution of the above-mentioned seat adjustment device, the rotating assembly also includes a third transmission member, which is arranged between the second transmission member and the second connecting member. One end of the third transmission member is rotatably connected to the second transmission member, and the other end of the third transmission member is fixedly connected to the second connecting member. The third transmission member and the second connecting member are arranged to be able to rotate synchronously.

[0016] In a preferred technical solution of the above-mentioned seat adjustment device, the rotating assembly further includes a rotating member, and the third transmission member and the second connecting member are connected via the rotating member.

[0017] In the preferred technical solution of the above seat adjustment device, the rotating assembly further includes a support member,

[0018] The supporting member is fixedly connected to the first connecting member. A rotating hole is provided on the supporting member. The rotating member passes through the rotating hole. Two ends of the rotating member are respectively connected to the third transmission member and the second connecting member.

[0019] In a preferred technical solution of the above-mentioned seat adjustment device, a through hole is provided on the first transmission member, and the first transmission member is sleeved onto the first recliner through the through hole.

[0020] In the preferred technical solution of the above seat adjustment device, the seat adjustment device further includes an operating handle and a connecting harness, one end of the connecting harness is connected to the locking member, and the other end of the connecting harness is connected to the first recliner.

[0021] The operating handle drives the first recliner to unlock or lock through the connecting harness.

[0022] In a preferred technical solution of the above-mentioned seat adjustment device, the operating handle is further connected to a driving device, and the driving device drives the operating handle to rotate / move up and down.

[0023] In the preferred technical solution of the above seat adjustment device, the first recliner includes a first rotating part, a locking part and a second rotating part.

[0024] The first rotating part is connected to the rotating assembly, and the locking part is configured to unlock and lock the first rotating part.

[0025] The second rotating part is connected to the locking part. When the second rotating part rotates in a first direction, the locking part unlocks the first rotating part. When the second rotating part rotates in a second direction, the locking part locks the first rotating part.

[0026] In a preferred technical solution of the above seat adjustment device, the first recliner further includes an elastic component, and the elastic component is connected to the second rotating portion, or the elastic component is connected to the locking portion.

[0027] In a preferred technical solution of the above seat adjustment device, the seat adjustment device further includes a locking member connected to the first recliner, and the locking member is configured to control locking and / or unlocking of the first recliner.

[0028] In a second aspect, the present invention further provides a seat group, characterized in that the seat group includes the seat adjustment device according to any one of the above-mentioned preferred technical solutions.

[0029] In a preferred technical solution of the above seat group, the seat group includes a first seat back and a second seat back, and the seat adjustment device is arranged between the first seat back and the second seat back.

[0030] In a preferred technical solution of the above seat group, the first connecting member is fixedly connected to the first seat back, and the second connecting member is fixedly connected to the second seat back.

[0031] In the preferred technical solution of the above-mentioned seat group, the seat group includes a first seat back, a second seat back and a third seat back, the second seat back is located between the first seat back and the third seat back, the seat adjustment device is arranged between the first seat back and the second seat back, and the second seat back is arranged to form a middle armrest when it is folded down.

[0032] In the preferred technical solution of the above seat group, the seat group further includes a driving member, a transmission rod, a second recliner and a third recliner.

[0033] The driving member is connected to the transmission rod to drive the transmission rod to rotate,

[0034] The second recliner and the third recliner are respectively arranged on both sides of the first seat back, one end of the transmission rod is connected to the second recliner, and the other end of the transmission rod is rotatably connected to a side of the second seat back that passes through the third recliner, the rotating member and the second seat back away from the first seat back.

[0035] In the preferred technical solution of the above-mentioned seat group, the operating handle is rotatably connected to the second seat backrest. When the operating handle is in a first position, the first recliner is in a locked state. When the operating handle is rotated to the second position, the first recliner is in an unlocked state.

[0036] In a third aspect, the present invention further provides a vehicle comprising the seat group according to any one of the above preferred technical solutions.

[0037] When the above technical solution is adopted, the seat adjustment device of the present invention includes a first connector, a second connector, a first recliner, and a rotating assembly; the first connector is connected to the first recliner, the first recliner is connected to the rotating assembly, and the rotating assembly is connected to the second connector; the first connector and the second connector are respectively used to connect two adjacent seat backs; when the first recliner is in an unlocked state, the rotating assembly can rotate to facilitate seat back adjustment, and when the first recliner is in a locked state, the rotating assembly is prohibited from rotating to achieve locking of the seat back after adjustment. The present invention connects two adjacent seat backs respectively through the first connector and the second connector, so that the seat adjustment device is located between the two seat backs, freeing up the upper space of the seat backs and improving passenger comfort. At the same time, through the arrangement of the first recliner and the rotating assembly, when the first recliner is in an unlocked state, the seat back connected to the second connector can be adjusted separately, and when the first recliner is in a locked state, the two adjacent seat backs can be adjusted synchronously.

[0038] Furthermore, the present invention is also fixedly connected to the first recliner through the first transmission member, the second transmission member is rotatably connected to the first transmission member and the third transmission member, and the third transmission member is fixedly connected to the second connecting member. When the first recliner is in a locked state, the rotating assembly plays a role of fixed connection, and can synchronously adjust two adjacent seat backs. When the first recliner is in an unlocked state, the seat back connected to the second connecting member can be adjusted individually. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0040] FIG1 is a structural diagram of a seat adjustment device of the present invention;

[0041] FIG2 is a structural diagram of the rotating assembly and the second connecting member of the present invention;

[0042] FIG3 is a structural diagram of a support member of the present invention;

[0043] FIG4 is a structural diagram of a second connecting member of the present invention;

[0044] FIG5 is a partial structural diagram of the seat adjustment device of the present invention;

[0045] FIG6 is a structural diagram of point A in FIG5 ;

[0046] 7 is a schematic diagram of the internal structure of the first angle adjuster according to the first preferred embodiment of the present invention;

[0047] FIG8 is a structural diagram of a seat group according to a first preferred embodiment of the present invention;

[0048] 9 is a structural diagram of the second seat backrest of the present invention after being folded down;

[0049] FIG10 is a partial structural diagram of the first seat back and the second seat back of the present invention;

[0050] FIG11 is a structural diagram of FIG10 from another perspective;

[0051] FIG12 is a structural diagram of a seat group according to a second preferred embodiment of the present invention;

[0052] 13 is a schematic diagram of the internal structure of the first angle adjuster according to the second preferred embodiment of the present invention;

[0053] Figures and symbols: 1. seat adjustment device; 11. first connecting member; 111. mounting hole; 112. wire hole; 113. first flange; 12. second connecting member; 13. first angle adjuster; 130. body; 131. first rotating part; 132. locking part; 1321. moving block; 1322. guide block; 133. second rotating part; 1331. guide rail; 134. moving groove; 135. first spring; 14. rotating assembly; 141. first transmission member; 1411. through hole; 142. second transmission member; 1421. first hole; 1422. first bushing; 1423. second hole; 1424. second bushing; 143. third transmission member Moving part; 144, rotating part; 1441, center hole; 145, supporting part; 1451, rotating hole; 1452, third bushing; 1453, second flange; 146, rivet; 15, operating handle; 16, connecting wire harness; 17, locking member; 171, wire harness connecting part; 172, second spring; 2, seat cushion; 21, first seat back; 22, second seat back; 23, third seat back; 3, driving member; 4, transmission rod; 5, second angle adjuster; 6, third angle adjuster; 7, first plate; 8, second plate; 9, third plate. DETAILED DESCRIPTION

[0054] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. For example, the present invention does not impose any restrictions on the specific type of vehicle. Those skilled in the art can set the specific type of vehicle according to actual use requirements, such as a sedan model, an SUV model, or other models, which are not restrictive. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0055] It should be noted that in the description of the present invention, terms such as "inner," "outer," "front," "rear," "left," and "right" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These terms are used solely for ease of description and do not indicate or imply that the device or component described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0056] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed or detachable connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0057] First, referring to Figures 1 and 5, the seat adjustment device 1 of the present invention includes a first connecting member 11, a second connecting member 12, a first recliner 13, a rotating assembly 14 and a locking member 17; the first connecting member 11 and the first recliner 13 are fixedly connected, the first recliner 13 and the rotating assembly 14 are connected, and the rotating assembly 14 is connected to the second connecting member 12; the first connecting member 11 and the second connecting member 12 are respectively used to connect two adjacent seat backs; the locking member 17 is configured to control the locking and unlocking of the first recliner 13; when the first recliner 13 is in the unlocked state, the rotating assembly 14 can rotate to facilitate seat back adjustment, and when the first recliner 13 is in the locked state, the rotating assembly 14 is prohibited from rotating to achieve locking of the seat back after adjustment.

[0058] In another preferred embodiment, the seat adjustment device 1 does not include the locking member 17 , the first recliner 13 is an electric recliner, and the first recliner 13 can be unlocked and locked by itself.

[0059] In another preferred embodiment, the first recliner 13 is unlocked by itself, and the locking member 17 is used to lock the first recliner 13 .

[0060] In another preferred embodiment, the first recliner 13 is locked by itself, and the first recliner 13 is unlocked by the locking member 17 .

[0061] In another preferred embodiment, the first recliner 13 is unlocked and locked by a locking member 17 .

[0062] The locking member 17 of the present invention can be a turntable directly connected to the first recliner 13, or an L-shaped rod directly connected to the first recliner 13, or other structures, which can be set by those skilled in the art according to actual conditions.

[0063] The present invention connects two adjacent seat backs respectively through the first connecting member 11 and the second connecting member 12, so that the seat adjustment device 1 is located between the two seat backs, freeing up the upper space of the seat back and improving the comfort of the passengers. At the same time, through the arrangement of the first recliner 13 and the rotating assembly 14, the rotating assembly 14 is fixedly connected to the first recliner 13, and the rotating assembly 14 is fixedly connected to the second connecting member 12. When the first recliner 13 is in the unlocked state, the rotating assembly 14 can rotate, and the seat back connected to the second connecting member 12 can be adjusted separately. When the first recliner 13 is in the locked state, the rotating assembly 14 is prohibited from rotating. The rotating assembly 14 and the first recliner 13 play the role of fixedly connecting the first connecting member 11 and the second connecting member 12. At this time, the two adjacent seat backs can be adjusted synchronously.

[0064] 1 and 2 , the rotating assembly 14 includes a first transmission member 141, a second transmission member 142 and a third transmission member 143. One end of the first transmission member 141 is fixedly connected to the first recliner 13, the other end of the first transmission member 141 is rotatably connected to one end of the second transmission member 142, the other end of the second transmission member 142 is rotatably connected to one end of the third transmission member 143, the other end of the third transmission member 143 is fixedly connected to the second connecting member 12, and the third transmission member 143 and the second connecting member 12 are configured to rotate synchronously, that is, the third transmission member 143 and the second connecting member 12 can rotate synchronously around the same axis.

[0065] 2 and 4 , a first hole 1421 and a second hole 1423 are respectively provided at the left and right ends of the second transmission member 142, a first bushing 1422 is provided in the first hole 1421, and a second bushing 1424 is provided in the second hole. A first rotating hole (not shown in the figure) matching the first hole 1421 is provided on the first transmission member 141, and a rivet 146 passes through the first hole 1421 and the first rotating hole to rivet the first transmission member 141 and the second transmission member 142. The provision of the first bushing 1422 can realize the rotation between the first transmission member 141 and the second transmission member 142. A second rotating hole (not shown in the figure) matching the second hole 1423 is provided on the third transmission member 143, and the rivet 146 passes through the second hole 1423 and the second rotating hole to rivet the second transmission member 142 and the third transmission member 143. The provision of the second bushing 1424 can realize the rotation between the second transmission member 142 and the third transmission member 143.

[0066] Based on the above structural setting, the first transmission member 141 is fixedly connected to the first recliner 13, the second transmission member 142 is rotatably connected to the first transmission member 141 and the third transmission member 143, and the third transmission member 143 is fixedly connected to the second connecting member 12. When the first recliner 13 is in a locked state, the first transmission member 141 cannot rotate around the first recliner 13. Since the third transmission member 143 is fixedly connected to the second connecting member 12, if the second connecting member 12 is rotated at this time, the second connecting member 12 must be able to move up and down to meet the rotation of the second transmission member 142. However, the second connecting member 12 is fixedly connected to the seat back, so the second connecting member 12 cannot move up and down. That is, when the first recliner 13 is in a locked state, the rotating assembly 14 as a whole plays a role of fixed connection, which can synchronously adjust two adjacent seat backs. When the first recliner 13 is in an unlocked state, the seat back connected to the second connecting member 12 can be adjusted individually.

[0067] It should be noted that the present invention does not impose any restrictions on the specific connection method of the first transmission member 141, the second transmission member 142 and the third transmission member 143. It is also possible that the first bushing 1422 can be sleeved into the first hole 1421 and the first rotating hole, and the second bushing 1424 can be sleeved into the second hole 1423 and the second rotating hole; it is also possible that no bushing is provided, and the rotating shaft passes through the first hole 1421 and the first rotating hole, and a lubricating medium is applied; it is also possible that the rotating shaft passes through the second hole 1423 and the second rotating hole, and a lubricating medium is applied. Those skilled in the art can set it themselves according to actual conditions.

[0068] In another preferred embodiment, the rotating assembly 14 only includes a first transmission member 141 and a second transmission member 142, one end of the first transmission member 141 is fixedly connected to the first recliner 13, the other end of the first transmission member 141 and one end of the second transmission member 142 are rotatably connected, and the other end of the second transmission member 142 is rotatably connected to the second connecting member 12; it is still possible to achieve that when the first recliner 13 is in a locked state, the rotating assembly 14 as a whole plays a role of fixed connection, and can synchronously adjust two adjacent seat backs, and when the first recliner 13 is in an unlocked state, the seat back connected to the second connecting member 12 can be adjusted individually.

[0069] Furthermore, in the present invention, the first recliner 13 includes a first rotating portion 131, a locking portion 132, and a second rotating portion 133. The first rotating portion 131 is connected to the rotating assembly 14. The locking portion 132 is configured to unlock and lock the first rotating portion 131. The second rotating portion 133 is connected to the locking portion 132. When the second rotating portion 133 rotates in a first direction, the locking portion 132 unlocks the first rotating portion 131. When the second rotating portion 133 rotates in a second direction, the locking portion 132 locks the first rotating portion 131. The first recliner 13 also includes an elastic member connected to the second rotating portion 133.

[0070] Specifically, referring to Figures 1, 2, 5, 6 and 7, a through hole 1411 is provided on the first transmission member 141, and the first transmission member 141 is sleeved on the first recliner 13 through the through hole 1411. The first recliner 13 includes a body 130, a first rotating portion 131, a locking portion 132 and a second rotating portion 133. The through hole 1411 is sleeved on the first rotating portion 131 and is fixedly connected to the first rotating portion 131. The first rotating portion 131 is rotatably connected to the body 130. A radial movable track (not shown in the figure) is provided on the body 130. The locking portion 132 is arranged in the radial movable track so that the locking portion 132 can reciprocate along the radial direction of the first rotating portion 131. The first rotating portion 133 The moving portion 131 is provided with a plurality of first meshing teeth (not shown in the figure), and the plurality of first meshing teeth are circumferentially arranged around the inner ring of the first rotating portion 131. The locking portion 132 is provided with a plurality of second meshing teeth (not shown in the figure), and the first meshing teeth and the second meshing teeth are meshed and connected. A moving block 1321 is provided on the locking portion 132, and a moving groove 134 is provided on the second rotating portion 133. The moving block 1321 can move in the moving groove 134, and the moving groove 134 gradually approaches the first rotating portion 133 in a counterclockwise direction. The center of the second rotating part 133, the second rotating part 133 and the locking member 17 are connected, one end of the first spring 135 is connected to the edge of the second rotating part 133, and the other end of the first spring 135 is connected to the body 130. The locking member 17 drives the second rotating part 133 to rotate clockwise, and the moving block 1321 moves in the moving groove 134. Since the moving groove 134 gradually approaches the center of the second rotating part 133 in the counterclockwise direction, the moving block 1321 moves toward the center of the second rotating part 133, driving the locking part 132 to move toward the center of the second rotating part 133, thereby separating the first meshing tooth and the second meshing tooth. The first rotating part 131 is unlocked and can rotate. At this time, the first spring 135 is deformed. When the locking member 17 is not subjected to force, the first spring 135 has a tendency to restore the deformation, driving the second rotating part 133 to rotate counterclockwise and return to its original position, so that the first meshing tooth and the second meshing tooth are meshed, thereby achieving the locking of the first rotating part 131.

[0071] Those skilled in the art will understand that the elastic component being the first spring 135 is only a preferred setting method. The elastic component can also be an elastic rope with elasticity, a torsion spring, or a coil spring. Those skilled in the art can set it according to actual conditions.

[0072] In another preferred embodiment of the first recliner 13, as shown in Figure 13, the elastic member (first spring 135) is connected to the locking portion 132, one end of the elastic member is connected to the locking portion 132, and the other end is connected to the body 130. A guide block 1322 is provided on the locking portion 132, and a guide track 1331 matching the guide block 1322 is provided on the second rotating portion 133. The guide track 1331 gradually recesses in the direction close to the center of the second rotating portion 133 in the clockwise direction of the second rotating portion 133. The state shown in Figure 13 is a locked state. When the first recliner 13 is in the locked state, In the stopped state, the first spring 135 deforms, and then the second rotating portion 133 rotates counterclockwise. The first spring 135 tends to recover its deformation, driving the guide block 1322 to gradually move toward the center of the second rotating portion 133, synchronously driving the locking portion 132 to move, thereby causing the locking portion 132 to unlock the first rotating portion 131. In the unlocked state, the second rotating portion 133 rotates clockwise, causing the guide block 1322 to gradually move away from the center of the second rotating portion 133, synchronously driving the locking portion 132 to move, thereby causing the locking portion 132 to lock the first rotating portion 131. The difference between the two embodiments of the first adjuster 13 lies in the connection method between the locking portion 132 and the second rotating portion 133, and the different connection positions of the elastic member. The remaining structures are the same and will not be repeated here.

[0073] It should be noted that the present invention does not impose any restrictions on the specific type and structure of the first recliner 13. The first recliner 13 can be a continuous recliner in the prior art, a discontinuous recliner, or other types. Changes to the specific structure and type of the first recliner 13 do not deviate from the basic principles of the present invention and will fall within the scope of protection of the present invention.

[0074] In the first preferred embodiment, the first recliner 13 may also not include an elastic component, and the second rotating part 133 is directly connected to the driving motor. The driving motor drives the second rotating part 133 to rotate clockwise to unlock the first recliner 13, and the driving motor drives the second rotating part 133 to rotate counterclockwise to lock the first recliner 13.

[0075] The main body 130 may be a separate structure or a part of the first connecting member 11 , and those skilled in the art may set it according to actual conditions.

[0076] Furthermore, as shown in Figure 6, a second spring 172 is provided in the locking member 17, and an accommodating cavity (not shown in the figure) is provided in the locking member 17. The second spring 172 is arranged in the accommodating cavity. One end of the second spring 172 is connected to the locking member 17, and the other end of the second spring 172 is connected to the first adjuster 13. When the locking member 17 rotates, the second spring 172 is deformed. When the locking member 17 is not subjected to force, the second spring 172 causes the locking member 17 to return to its original position.

[0077] In a preferred embodiment, both the first spring 135 and the second spring 172 are included. In another preferred embodiment, only the first spring 135 is included. In another preferred embodiment, only the second spring 172 is included.

[0078] Continuing with FIG. 2 , the rotating assembly 14 further includes a rotating member 144, which connects the third transmission member 143 and the second connecting member 12. The third transmission member 143 and the second connecting member 12 are capable of coaxial rotation about the central axis of the rotating member 144. One end of the rotating member 144 is connected to the second connecting member 12, and the other end of the rotating member 144 is connected to the third transmission member 143. This provides sufficient rotational space for the first transmission member 141, the second transmission member 142, and the third transmission member 143, thereby improving the overall stability of the seat adjustment device 1.

[0079] Furthermore, referring to Figures 1 and 3 , the rotating assembly further includes a support member 145, which is fixedly connected to the first connecting member 11. A rotation hole 1451 is defined in the support member 145, through which the rotating member 144 passes. The ends of the rotating member 144 are respectively connected to the third transmission member 143 and the second connecting member 12. The support member 145 supports the rotation of the rotating member 144. A third bushing 1452 is disposed within the rotation hole 1451, enabling the rotating member 144 to rotate within the rotation hole 1451.

[0080] Furthermore, a second flange 1453 is provided on the support member 145, and the second flange 1453 is fixedly connected to the first connecting member 11, and the second flange 1453 is separated from the rotating hole 1451 by a preset distance in the left and right directions. The setting of the preset distance enables the support member 145 to form an accommodating cavity (not shown in the figure), which can accommodate the third transmission member 143, and the cross-section of the accommodating cavity is semicircular so as not to hinder the rotation of the third transmission member 143.

[0081] In another preferred embodiment, the seat adjustment device 1 may not include the support member 145. Instead, a center hole 1441 (as shown in FIG. 2 ) may be provided in the rotating member 144. The center hole 1441 extends through the rotating member 144 and the third transmission member 143. A rotating shaft passes through the first connecting member 11, the center hole 1441, and the second connecting member 12. The rotating shaft is rotatably connected to the first connecting member 11, the center hole 1441, and the second connecting member 12, thereby still supporting the coaxial rotation of the second connecting member 12 and the third transmission member 143. Providing the support member 145 can enhance the overall stability of the seat adjustment device 1.

[0082] 5 and 6 , the seat adjustment device further includes an operating handle 15 and a connecting wire harness 16. One end of the connecting wire harness 16 is connected to a locking member 17, and the other end of the connecting wire harness 16 is connected to the operating handle 15. The operating handle 15 drives the locking member 17 to rotate via the connecting wire harness 16, thereby enabling the locking member 17 to unlock the first recliner 13 (the first recliner 13 of the first preferred embodiment). When the locking member 17 is not subjected to force, the locking member 17 resets, thereby enabling the locking member 17 to lock the first recliner 13. The first connector 11 is provided with a wire hole 112, through which the connecting wire harness 16 passes to connect to the locking member 17. The locking member 17 is provided with a wire harness connecting portion 171, which is connected to the connecting wire harness 16. The wire harness connecting portion 171 drives the locking member 17 to rotate as a whole, thereby unlocking the first recliner 13.

[0083] Although in this preferred embodiment, the operating handle 15 drives the connecting harness 16 to drive the locking member 17 to rotate, and the locking member 17 is connected to the second rotating part 133, thereby being able to drive the first angle adjuster 13 to unlock, this is not restrictive. In another feasible embodiment, based on the first angle adjuster 13 of the first preferred embodiment, the connecting harness 16 is directly connected to the second rotating part 133 to drive the second rotating part 133 to rotate. When the operating handle 15 and the connecting harness 16 are subjected to force, the force is transmitted to the second rotating part 133, so that the second rotating part 133 rotates clockwise, thereby unlocking the first angle adjuster 13. At this time, the first spring 135 is deformed. When the operating handle 15 and the connecting harness 16 are not subjected to force, the first spring 135 drives the second rotating part 133 to rotate counterclockwise, thereby locking the first angle adjuster 13.

[0084] Based on the first angle adjuster 13 of the second preferred embodiment, the connecting harness 16 is directly connected to the second rotating part 133 to drive the second rotating part 133 to rotate. When the operating handle 15 and the connecting harness 16 are subjected to force, the force is transmitted to the second rotating part 133, so that the second rotating part 133 rotates clockwise, thereby locking the first angle adjuster 13. At this time, the first spring 135 is deformed. When the operating handle 15 and the connecting harness 16 are not subjected to force, the first spring 135 drives the locking part 132 to reset, thereby unlocking the first angle adjuster 13, and then the guide block 1322 moves in the guide rail 1331, so that the second rotating part 133 rotates counterclockwise.

[0085] It will be understood by those skilled in the art that the connection harness 16 can be used to drive the locking member 17 to rotate by pulling the operating handle 15, or the connection harness 16 can be driven to move and then drive the locking member 17 to rotate by rotating the operating handle 15. Those skilled in the art can set it according to actual conditions.

[0086] In addition, the operating handle 15 is also connected to a driving device (not shown in the figure), which drives the operating handle 15 to rotate or move up and down. The driving device can be a driving motor, which drives the operating handle 15 to rotate, or it can be a hydraulic driving mechanism, which drives the operating handle 15 to move up and down.

[0087] In a second aspect, the present invention further claims protection for a seat group, which comprises the seat adjustment device 1 according to any one of the above preferred embodiments.

[0088] 8 and 9 , as shown in FIG8 and 9 , the seat group includes a first seat backrest 21, a second seat backrest 22 and a third seat backrest 23, the second seat backrest 22 being located between the first seat backrest 21 and the third seat backrest 23, the seat adjustment device 1 being disposed between the first seat backrest 21 and the second seat backrest 22, and the second seat backrest 22 being configured to form a center armrest when it is folded down (as shown in FIG9 ).

[0089] Specifically, the first connecting member 11 is connected to the first seat back 21, and the second connecting member 12 is connected to the second seat back 22. When the first recliner 13 is in the unlocked state, the second seat back 22 can be folded down to form a middle armrest, thereby improving the comfort of passengers on the left and right sides.

[0090] The first connecting member 11 is connected to the seat frame of the first seat back 21 (the back support frame composed of pipe fittings), and can also be directly connected to the first seat back 21. Similarly, the second connecting member 12 is connected to the seat frame of the second seat back 22 (the back support frame composed of pipe fittings), and can also be directly connected to the second seat back 22. Those skilled in the art can set it according to actual conditions.

[0091] 5 , a first flange 113 is provided on the first connecting member 11 , which improves the structural strength of the first connecting member 11 and facilitates the connection between the first connecting member 11 and the seat frame of the first seat back 21 .

[0092] Next, referring to Figure 10, the seat group also includes a driving member 3, a transmission rod 4, a second recliner 5 and a third recliner 6. The driving member 3 is connected to the transmission rod 4 to drive the transmission rod 4 to rotate. The second recliner 5 and the third recliner 6 are respectively arranged on both sides of the first seat back 21. One end of the transmission rod 4 is connected to the second recliner 5, and the other end of the transmission rod 4 is rotatably connected to the side of the second seat back 22 away from the first seat back 21, which passes through the third recliner 6, the rotating member 144 in sequence.

[0093] When the seat adjustment device 1 is in the locked state, the transmission rod 4 is driven by the driving member 3, and the transmission rod 4 drives the second recliner 5 and the third recliner 6 to rotate, thereby allowing the first seat back 21 to be tilted forward or backward. Since the seat adjustment device 1 is in the locked state, the seat adjustment device 1 plays the role of fixedly connecting the first seat back 21 and the second seat back 22. Therefore, the second seat back 22 will be tilted forward or backward together with the first seat back. When the seat adjustment device 1 is in the unlocked state, since the transmission rod 4 passes through the rotating member 144 and is rotatably connected to the rotating member 144, and the transmission rod 4 is also rotatably connected to the right side of the second seat back 22, when the second seat back 22 is folded down, the first seat back 21 will not be driven to rotate by the transmission rod 4. Based on this, the seat group of the present invention can adjust the second seat back 22 separately and the first seat back 21 and the second seat back 22 simultaneously.

[0094] The driving member 3 of the present invention can be a driving motor or a driving handle, and the second recliner 5 and the third recliner 6 can be electric recliners or manual recliners. Those skilled in the art can set them according to actual conditions.

[0095] Preferably, the driving member 3 is a driving motor, and the second recliner 5 and the third recliner 6 are electric recliners.

[0096] Furthermore, the third seat back 23 can be driven by an electric mechanism to achieve front and rear tilt adjustment, or can be driven by a manual adjustment mechanism to achieve front and rear tilt adjustment, and those skilled in the art can set it according to actual conditions.

[0097] Continuing with Figure 10 , the operating handle 15 is rotatably connected to the second seat back 22. When the operating handle 15 is in the first position, the first recliner 13 is locked. When the operating handle 15 is rotated to the second position, the first recliner 13 is unlocked. Specifically, when the operating handle 15 is rotated from the first position to the second position, the operating handle 15 rotates upward, driving the connecting harness 16 to rotate the locking member 17, thereby unlocking the first recliner 13. When no force is applied to the operating handle 15, it automatically returns to its original position, and the first recliner 13 is now locked.

[0098] Next, referring to Figure 11, a first plate 7 and a second plate 8 are provided on both sides of the first seat back 21. The first plate 7 is rotatably connected to the first seat back 21 through the second recliner 5, and the second plate 8 is rotatably connected to the first connecting member 11 through the third recliner 6. The first connecting member 11 is provided with a mounting hole 111 (shown in Figure 5) for mounting the third recliner 6; the third plate 9 is rotatably connected to the second seat back 22 through a rotating shaft or a bearing; the first plate 7, the second plate 8, and the third plate 9 are fixedly connected to the seat cushion 2 (shown in Figure 8).

[0099] In another preferred embodiment, as shown in FIG12 , the seat adjustment device 1 is disposed between the second seat back 22 and the third seat back 23 , that is, the first connecting member 11 is connected to the third seat back 23 , and the second connecting member 12 is connected to the second seat back 22 .

[0100] In another preferred embodiment, the seat group only includes a first seat back 21 and a second seat back 22, the seat adjustment device 1 is arranged between the first seat back 21 and the second seat back 22, the first connecting member 11 is fixedly connected to the first seat back 21, and the second connecting member 12 is fixedly connected to the second seat back 22.

[0101] In another preferred embodiment, the seat group only includes a first seat back 21 and a second seat back 22, the seat adjustment device 1 is arranged between the first seat back 21 and the second seat back 22, the first connecting member 11 is fixedly connected to the second seat back 22, and the second connecting member 12 is fixedly connected to the first seat back 21.

[0102] In a third aspect, the present invention further claims protection for a vehicle comprising the seat group according to any one of the above preferred embodiments.

[0103] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A seat adjustment device, characterized in that: The seat adjustment device comprises a first connecting member, a second connecting member, a first angle adjuster and a rotating assembly; The first connecting member is connected to the first angle adjuster, the first angle adjuster is connected to the rotating assembly, and the rotating assembly is connected to the second connecting member; The first connecting member and the second connecting member are respectively used to connect two adjacent seat backs; When the first recliner is in an unlocked state, the rotating assembly can rotate to facilitate seat back adjustment. When the first recliner is in a locked state, the rotating assembly is prohibited from rotating to achieve locking of the seat back after adjustment.

2. The seat adjustment device according to claim 1, characterized in that: The rotating assembly includes a first transmission member and a second transmission member, One end of the first transmission member is fixedly connected to the first angle adjuster, the other end of the first transmission member is rotatably connected to one end of the second transmission member, and the other end of the second transmission member is rotatably connected to the second connecting member.

3. The seat adjustment device according to claim 2, characterized in that: The rotating assembly also includes a third transmission member, which is arranged between the second transmission member and the second connecting member. One end of the third transmission member is rotatably connected to the second transmission member, and the other end of the third transmission member is fixedly connected to the second connecting member. The third transmission member and the second connecting member are arranged to be able to rotate synchronously.

4. The seat adjustment device according to claim 3, characterized in that: The rotating assembly further includes a rotating member, and the third transmission member and the second connecting member are connected via the rotating member.

5. The seat adjustment device according to claim 4, characterized in that: The rotating assembly further comprises a support member, The support member is fixedly connected to the first connecting member, a rotation hole is provided on the support member, the rotating member passes through the rotation hole, and two ends of the rotating member are respectively connected to the third transmission member and the second connecting member.

6. The seat adjustment device according to claim 2, characterized in that: The first transmission member is provided with a through hole, and the first transmission member is sleeved onto the first angle adjuster through the through hole.

7. The seat adjustment device according to claim 1, characterized in that: The seat adjustment device further includes an operating handle and a connecting wire harness, one end of the connecting wire harness is connected to the first angle adjuster, and the other end of the connecting wire harness is connected to the operating handle. The operating handle drives the first angle adjuster to unlock or lock through the connecting harness.

8. The seat adjustment device according to claim 7, characterized in that: The operating handle is also connected to a driving device, and the driving device drives the operating handle to rotate / move up and down.

9. The seat adjustment device according to claim 1, characterized in that: The first angle adjuster includes a first rotating part, a locking part and a second rotating part. The first rotating part is connected to the rotating assembly, and the locking part is configured to unlock and lock the first rotating part. The second rotating part is connected to the locking part. When the second rotating part rotates in a first direction, the locking part unlocks the first rotating part. When the second rotating part rotates in a second direction, the locking part locks the first rotating part.

10. The seat adjustment device according to claim 9, characterized in that: The first angle adjuster further includes an elastic component, and the elastic component is connected to the second rotating part, or the elastic component is connected to the locking part.

11. The seat adjustment device according to claim 1, characterized in that: The seat adjustment device further comprises a locking member connected to the first recliner, and the locking member is configured to control locking and / or unlocking of the first recliner.

12. A seat group, characterized in that: The seat group comprises the seat adjustment device according to any one of claims 1 to 11.

13. The seat assembly according to claim 12, characterized in that: The seat group includes a first seat back and a second seat back, and the seat adjustment device is disposed between the first seat back and the second seat back.

14. The seat assembly according to claim 13, characterized in that: The first connecting member is fixedly connected to the first seat back, and the second connecting member is fixedly connected to the second seat back.

15. The seat assembly according to claim 12, characterized in that: The seat group includes a first seat back, a second seat back and a third seat back, the second seat back is located between the first seat back and the third seat back, the seat adjustment device is arranged between the first seat back and the second seat back, and the second seat back is arranged to form a middle armrest when it is folded down.

16. Seat group according to claim 15 as dependent on claim 4, characterized in that The seat group further includes a driving member, a transmission rod, a second recliner and a third recliner, The driving member is connected to the transmission rod to drive the transmission rod to rotate. The second recliner and the third recliner are respectively arranged on both sides of the first seat back, one end of the transmission rod is connected to the second recliner, and the other end of the transmission rod is rotatably connected to a side of the second seat back that passes through the third recliner, the rotating member and the second seat back away from the first seat back in sequence.

17. The seat group according to claim 15 as dependent on claim 7, characterized in that The operating handle is rotatably connected to the second seat back. When the operating handle is in a first position, the first recliner is in a locked state. When the operating handle is rotated to a second position, the first recliner is in an unlocked state.

18. A vehicle, characterized in that: The vehicle comprises a seat group as claimed in any one of claims 12 to 17.

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