Seat adjusting device, seat and vehicle
By coordinating the linear drive mechanism and drive components, the seat state is automatically adjusted, solving the problem that traditional seats cannot restrain passengers under simulated weightlessness, achieving reliable restraint during a collision, and reducing the risk of injury to the user.
Patent Information
- Application Number
- CN202520509383.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-03-21
AI Technical Summary
In simulated weightlessness, traditional car seats cannot reliably restrain users with seat belts, resulting in a high risk of injury.
It employs a combination of linear drive mechanism, telescopic positioning component and drive component. The drive component automatically adjusts the seat from a simulated weightlessness state to the initial state during a collision, ensuring that the seat belt reliably restrains the user.
In the event of a vehicle collision, the seat automatically returns to its initial state, and the seat belt provides good restraint for the user, reducing the risk of injury.
Smart Images
Figure CN223803448U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of vehicle seats, and particularly relates to a seat adjusting device, a seat and a vehicle. BACKGROUND
[0002] In modern seat design, in order to enrich the user experience, the seat is often designed to be rotatable. Specifically, the rear end of the seat cushion framework is usually rotatably connected to the chassis of the seat, and an adjusting device is generally arranged to be connected to the seat cushion framework, and the adjusting device is used to drive the seat cushion framework to change the angle, so as to change the posture of the seat and bring the user a diversified use experience. For example, the seat cushion framework is driven to rotate by the adjusting device, so that the front end of the seat cushion framework is raised, and the backrest connected to the seat cushion framework is tilted backward, so that the seat is adjusted to simulate a weightless state.
[0003] However, the conventional seat still has some problems in the simulated weightless state. For example, when the vehicle collides, the state of the seat cushion framework and the backrest remains unchanged, and still remains in the simulated weightless state. In this state, the user lies on the seat in a lying posture, and the safety belt originally used to ensure safety cannot reliably constrain the user, thereby causing a high risk of injury to the user. CONTENT OF THE UTILITY MODEL
[0004] The purpose of the embodiments of the application is to provide a seat adjusting device, a seat and a vehicle, which can solve the problem of high risk of injury to the user in the related art.
[0005] In a first aspect, the embodiments of the application provide a seat adjusting device, comprising:
[0006] a linear driving mechanism and a connecting piece, the driving end of the linear driving mechanism and the connecting piece are slidingly matched along the driving direction of the linear driving mechanism, and one of the fixed end of the linear driving mechanism and the connecting piece is used to be rotatably connected to the chassis of the seat, and the other is used to be rotatably connected to the seat cushion framework of the seat;
[0007] a telescopic positioning assembly, the telescopic direction of the telescopic positioning assembly intersects the driving direction of the linear driving mechanism, one part of the telescopic positioning assembly is connected to the driving end of the linear driving mechanism, and the other part is connected to the connecting piece;
[0008] a driving assembly, the driving assembly can drive the telescopic positioning assembly to contract, so that the telescopic positioning assembly is separated from the linear driving mechanism or the connecting piece.
[0009] In the embodiment of the present application, one end of the telescopic positioning assembly is connected with the driving end of the linear driving mechanism, and the other end is connected with the connecting piece. In this state, the linear driving mechanism is locked relative to the connecting piece, and the two cannot move relative to each other, so that the seat is kept in a corresponding state, such as a simulated weightless state.
[0010] In addition, in the embodiment of the present application, the driving assembly can drive the telescopic positioning assembly to contract, so that the telescopic positioning assembly is separated from the linear driving mechanism or the connecting piece. After separation, the connection relationship between the linear driving mechanism and the connecting piece is released, and the driving end of the linear driving mechanism and the connecting piece can slide relative to each other along the driving direction of the linear driving mechanism. At this time, under the joint action of external force and gravity, the seat can automatically recover to the initial state from the simulated weightless state, for example. When the seat is in the initial state, the user sits on the seat in a sitting position, and the restraint of the safety belt on the user is more reliable.
[0011] Therefore, the adjusting device of the seat provided in the embodiment of the present application can automatically adjust the seat in the simulated weightless state to the initial state when the vehicle collides, and the restraint of the safety belt on the user is better in the initial state, thereby reducing the risk of injury of the user.
[0012] Optionally, the telescopic positioning assembly comprises a cylinder, a piston and a connecting rod. The piston is located in the cylinder and is in sliding fit with the cylinder along the axial direction of the cylinder. The piston divides the inner cavity of the cylinder into a first cavity and a second cavity. The first cavity is in communication with the outside. One end of the connecting rod is located in the second cavity and is connected with the piston. The other end of the connecting rod is connected with one of the linear driving mechanism and the connecting piece, and the other end is connected with the other one. The driving assembly drives the connecting rod to move along the axial direction of the cylinder, so that the telescopic positioning assembly contracts. After such arrangement, the piston and the cylinder slide along the axial direction of the cylinder during the movement of the connecting rod. Under the cooperation of the two, the movement of the connecting rod is smoother, and the movement direction of the connecting rod is accurately controllable.
[0013] Optionally, the driving assembly comprises an explosive and an igniter. The explosive is filled in the second cavity, and the igniter is located in the second cavity and is used to ignite the explosive to drive the connecting rod to move along the axial direction of the cylinder. After such arrangement, a large impact force is generated at the moment of ignition of the explosive, so that the connecting piece can be driven to move along the axial direction of the cylinder in a short time, and the seat can be switched to the initial state more quickly.
[0014] Optionally, the connecting member is a cylindrical structure, the driving end of the linear driving mechanism is located in the inner cavity of the connecting member and is in sliding fit with the connecting member along the axial direction of the connecting member, one of the fixed end of the linear driving mechanism and the connecting member is rotationally connected with the bottom frame and the other is rotationally connected with the cushion frame. In this way, the connecting member provides uniform support and guidance for the driving end of the linear driving mechanism in the circumferential direction of the driving end, so that the relative sliding between the connecting member and the driving end of the linear driving mechanism is relatively stable.
[0015] Optionally, the connecting member is in transition fit with the driving end of the linear driving mechanism. In this way, the linear driving mechanism has a greater friction between the driving end and the connecting member, and when the driving end of the linear driving mechanism is separated from the connecting member, the friction can slow down the relative sliding speed between the driving end of the linear driving mechanism and the connecting member. In this way, the seat can be switched from the simulated weightless state to the initial state more stably.
[0016] Optionally, the linear driving mechanism comprises a rotary driving member, a lead screw and a sleeve, the output end of the rotary driving member is in transmission connection with one end of the lead screw, at least part of the lead screw is located in the sleeve and is in threaded connection with the inner wall of the sleeve, the rotary driving member is rotationally connected with the bottom frame or the cushion frame, the sleeve is in sliding fit with the connecting member along the axial direction of the sleeve, and the sleeve is connected with the telescopic positioning assembly. The threaded connection between the lead screw and the sleeve can accurately convert the rotary motion of the rotary driving member into the linear motion of the sleeve. This motion conversion mode can achieve high-precision linear displacement control, so that the length of the linear driving mechanism can be accurately adjusted, and the angle between the cushion frame and the bottom frame can be accurately adjusted.
[0017] In a second aspect, the embodiments of the present application also provide a seat, which comprises a bottom frame, a cushion frame and the seat adjusting device described above, one of the fixed end of the linear driving mechanism of the seat adjusting device and the connecting member is rotationally connected with the bottom frame and the other is rotationally connected with the cushion frame. The seat has the same beneficial effects as the seat adjusting device described above, and will not be described here.
[0018] Optionally, the rear end of the cushion frame is rotationally connected with the bottom frame, and the seat further comprises a buffer, which is arranged on the bottom frame and supports the front end of the cushion frame when the seat is in the initial state. In this way, when the seat is switched from the simulated weightless state to the initial state, the buffer can buffer the impact force of the cushion frame, so as to prevent the bottom frame from being subjected to excessive force, thereby prolonging the service life of the bottom frame.
[0019] Optionally, the seat further comprises a connecting plate and a connecting rod, a first end of the connecting plate is rotatably connected with the fixed end of the linear driving mechanism or the connecting piece, a second end of the connecting plate is rotatably connected with one end of the connecting rod, the other end of the connecting rod is rotatably connected with the cushion framework, and a third end of the connecting plate is rotatably connected with the base frame. After being arranged in this way, in actual use, part of the force borne by the cushion framework is directly transmitted to the base frame through the connecting rod and the connecting plate in sequence, so that the force transmitted to the linear driving mechanism is reduced, thereby prolonging the service life of the linear driving mechanism.
[0020] In a third aspect, the embodiments of the present application further provide a vehicle comprising the seat described above. The vehicle has the same beneficial effects as the seat described above, and details are not repeated here. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 A structural schematic diagram of the seat disclosed by the embodiments of the present application in a simulated weightlessness state;
[0022] Figure 2 A partial structural schematic diagram of the seat; Figure 1
[0023] Figure 3 A structural schematic diagram of the seat from another perspective; Figure 2
[0024] Figure 4 A partial structural schematic diagram of the seat; Figure 3
[0025] Figure 5 A structural schematic diagram of the seat disclosed by the embodiments of the present application in an initial state;
[0026] Figure 6 A partial structural schematic diagram of the seat; Figure 5
[0027] A schematic diagram of the cooperation mode of the linear driving mechanism, the connecting piece and the telescopic positioning assembly when the seat disclosed by the embodiments of the present application is in a simulated weightlessness state; Figure 7
[0028] A schematic diagram of the cooperation mode of the linear driving mechanism, the connecting piece and the telescopic positioning assembly when the seat disclosed by the embodiments of the present application is in an initial state; Figure 8
[0029] A structural schematic diagram of the driving assembly when the seat disclosed by the embodiments of the present application is in a simulated weightlessness state; Figure 9
[0030] A structural schematic diagram of the driving assembly when the seat disclosed by the embodiments of the present application is in an initial state. Figure 10
[0031] Explanation of reference signs:
[0032] 100 - linear drive mechanism, 110 - rotating drive member, 120 - screw rod, 130 - sleeve
[0033] 200 - connecting member, 210 - mounting portion
[0034] 300 - telescopic positioning assembly, 310 - cylinder, 311 - first cavity, 312 - second cavity, 313 - air release hole, 320 - piston, 330 - connecting rod
[0035] 410 - explosive
[0036] 500 - base frame, 510 - first cross beam, 520 - second cross beam, 530 - sliding member, 540 - guide rail, 550 - first mounting member, 560 - second mounting member, 570 - buffer member, 580 - first mounting seat, 590 - second mounting seat
[0037] 600 - seat cushion framework, 610 - side plate, 620 - third mounting member, 630 - fourth mounting member
[0038] 710 - second shaft, 720 - third shaft, 730 - sixth shaft
[0039] 810 - connecting plate, 820 - connecting rod
[0040] 900 - backrest DETAILED DESCRIPTION
[0041] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art belong to the scope of protection of the present application.
[0042] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be exchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are usually a class, and are not limited to the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in a "or" relationship.
[0043] The adjusting device of a seat, the seat and the vehicle provided by the embodiments of the present application will be described in detail below with reference to the specific embodiments and application scenarios thereof in combination with the drawings.
[0044] Please refer to Figures 1 to 10 In the embodiments of the present application, an adjusting device of a seat is provided, which comprises a linear driving mechanism 100, a connecting piece 200, a telescopic positioning assembly 300 and a driving assembly.
[0045] Specifically, the driving end of the linear driving mechanism 100 and the connecting piece 200 are slidingly fitted along the driving direction of the linear driving mechanism 100, the driving end of the linear driving mechanism 100 moves along the driving direction of the linear driving mechanism 100, for example, the direction indicated by the arrow line A in FIG. 1, and one of the fixed end of the linear driving mechanism 100 and the connecting piece 200 is used to be rotationally connected with the bottom frame 500 of the seat, and the other is used to be rotationally connected with the cushion framework 600 of the seat. Figure 3
[0046] The rear end of the cushion framework 600 is, for example, rotationally connected with the bottom frame 500, and the backrest 900 of the seat is, for example, connected with the cushion framework 600. Referring to FIG. 2, when the seat is in a simulated weightlessness state, the front end of the cushion framework 600 is raised, the backrest 900 is reclined, and the cushion framework 600 and the bottom frame 500 are, for example, at a preset included angle, specifically, the preset included angle is, for example, an acute angle, and the driving end of the linear driving mechanism 100 is controlled to move, so as to change the length of the linear driving mechanism 100, and accordingly, the preset included angle can be changed. In this state, a user lies on the seat in a lying position. In addition, referring to FIG. 3, when the seat is in an initial state, the backrest 900 and the cushion framework 600 are both in a normal state, at this time, a user sits on the seat in a sitting position. Figure 1 Figure 5
[0047] The telescopic direction of the telescopic positioning assembly 300 intersects with the driving direction of the linear driving mechanism 100, and optionally, the telescopic direction of the telescopic positioning assembly 300 is, for example, perpendicular to the driving direction of the linear driving mechanism 100, for example, the direction indicated by the arrow line B in FIG. 1. One part of the telescopic positioning assembly 300 is connected with the driving end of the linear driving mechanism 100, and the other part is connected with the connecting piece 200. Figure 7
[0048] The driving assembly can drive the telescopic positioning assembly 300 to contract, so as to separate the telescopic positioning assembly 300 from the linear driving mechanism 100 or the connecting piece 200.
[0049] In this embodiment, one end of the telescopic positioning component 300 is connected to the drive end of the linear drive mechanism 100, and the other end is connected to the connector 200. In this state, the linear drive mechanism 100 and the connector 200 are locked relative to each other, preventing them from moving relative to each other, thus keeping the seat in a corresponding state, such as simulating a weightless state.
[0050] Furthermore, in this embodiment, the drive component can drive the telescopic positioning component 300 to retract, causing the telescopic positioning component 300 to separate from the linear drive mechanism 100 or the connector 200. After separation, the connection between the linear drive mechanism 100 and the connector 200 is released, and the drive end of the linear drive mechanism 100 and the connector 200 can slide relative to each other along the drive direction of the linear drive mechanism 100. At this time, under the combined action of external force and gravity, the seat can, for example, automatically return to its initial state from a simulated weightlessness state. When the seat is in its initial state, the user is sitting in the seat in a seated posture, and the seat belt provides relatively reliable restraint to the user.
[0051] Therefore, the seat adjustment device provided in this application embodiment can automatically adjust the seat, which is in a simulated weightlessness state, to the initial state through the drive component when a vehicle collision occurs. In the initial state, the seat belt has a good restraining effect on the user, thereby reducing the risk of user injury.
[0052] In another embodiment, reference Figure 9 and Figure 10 As shown, the telescopic positioning assembly 300 includes a cylinder 310, a piston 320, and a connecting rod 330. The piston 320 is located inside the cylinder 310 and slides axially with the cylinder 310. The piston 320 divides the inner cavity of the cylinder 310 into a first cavity 311 and a second cavity 312. The first cavity 311 communicates with the outside. One end of the connecting rod 330 is located in the second cavity 312 and connected to the piston 320. The other end of the connecting rod 330 is connected to either the cylinder 310 or a linear drive mechanism 100, and the other end is connected to a connecting member 200. The drive assembly drives the connecting rod 330 to move axially along the cylinder 310, causing the telescopic positioning assembly 300 to retract. The axial direction of the cylinder 310 is, for example, the same as the telescopic direction of the telescopic positioning assembly 300. Figure 10 The direction indicated by the middle arrow C.
[0053] In actual use, the piston 320 slides along the axial direction of the barrel 310, and drives the connecting rod 330 to extend or retract relative to the barrel 310 along the axial direction of the barrel 310, so as to realize the extension and retraction of the telescopic positioning assembly 300, and then separate the telescopic positioning assembly 300 from the linear driving mechanism 100 or the connecting member 200. During the extension and retraction of the connecting rod 330, the piston 320 slides along the axial direction of the barrel 310, and the extension and retraction of the connecting rod 330 is smooth and controllable.
[0054] Optionally, as shown in Figure 9 and Figure 10 The barrel 310 is provided with a gas escape hole 313, and the first cavity 311 is in communication with the outside through the gas escape hole 313.
[0055] In other optional embodiments, the telescopic positioning assembly 300 can also be an elastic member, and the driving assembly controls the extension and retraction of the telescopic positioning assembly 300 by controlling the elastic deformation of the telescopic positioning assembly 300.
[0056] In further embodiments, the driving assembly includes an explosive 410 and an igniter, the explosive 410 is filled in the second cavity 312, the igniter is located in the second cavity 312 and is used to ignite the explosive 410, and the connecting rod 330 moves along the axial direction of the barrel 310. Optionally, the explosive 410 is gunpowder.
[0057] By using the scheme of the present embodiment, a large impact force is generated at the moment of ignition of the explosive 410, so as to drive the connecting member 200 to move along the axial direction of the barrel 310 in a short time, and then the seat can be quickly switched to the initial state.
[0058] In actual use, the vehicle body is provided with a detection device, and when the detection device detects that the vehicle has collided, the igniter ignites the explosive 410 by the control system of the vehicle, so as to switch the seat to the initial state.
[0059] In other optional embodiments, a gas generating device can also be used to gradually inject gas into the second cavity 312 to drive the connecting member 200 to move, so as to realize the retraction of the telescopic positioning assembly 300.
[0060] In another embodiment, as shown in Figures 1 to 8As shown, the connecting piece 200 is in a cylindrical structure, the driving end of the linear driving mechanism 100 is located in the inner cavity of the connecting piece 200, and is in sliding fit with the connecting piece 200 along the axial direction of the connecting piece 200, for example, the axial direction of the connecting piece 200 is the same as the driving direction of the linear driving mechanism 100, the end of the connecting rod 330 away from the piston 320 is connected with the driving end of the linear driving mechanism 100, and the cylinder body 310 is connected with the connecting piece 200. After being arranged in this way, the connecting piece 200 provides uniform support and guidance for the driving end of the linear driving mechanism 100 in the circumferential direction of the driving end of the linear driving mechanism 100, so that the relative sliding between the connecting piece 200 and the driving end of the linear driving mechanism 100 is relatively stable.
[0061] In actual use, the connecting rod 330 is retracted into the cylinder body 310, for example, so that the connecting rod 330 is separated from the driving end of the linear driving mechanism 100, and then the connection between the driving end of the linear driving mechanism 100 and the connecting piece 200 is released.
[0062] In other optional embodiments, the connecting piece 200 can also be in a block structure, at this time, for example, a sliding groove is arranged on the connecting piece 200, the length direction of the sliding groove is the same as the driving direction of the linear driving mechanism 100, and a sliding block is arranged on the driving end of the linear driving mechanism 100, the sliding block and the sliding groove are in sliding fit in the length direction of the sliding groove, so as to realize the sliding fit between the driving end of the linear driving mechanism 100 and the connecting piece 200 along the driving direction of the linear driving mechanism 100.
[0063] In another embodiment, the connecting piece 200 is in transition fit with the driving end of the linear driving mechanism 100. This fit mode makes the fit between the connecting piece 200 and the driving end of the linear driving mechanism 100 more compact, so that the linear driving mechanism 100 and the connecting piece 200 have a larger friction force, when the driving end of the linear driving mechanism 100 is separated from the connecting piece 200, the friction force can slow down the relative sliding speed between the driving end of the linear driving mechanism 100 and the connecting piece 200. In this way, the seat can be relatively stably switched from the simulated weightlessness state to the initial state.
[0064] In other optional embodiments, the connecting piece 200 can also be in clearance fit with the driving end of the linear driving mechanism 100.
[0065] In another embodiment, with reference to Figure 6As shown, the linear driving mechanism 100 comprises a rotary driving member 110, a screw rod 120 and a sleeve 130, the output end of the rotary driving member 110 is in transmission connection with one end of the screw rod 120, at least part of the screw rod 120 is located in the sleeve 130 and is in threaded connection with the inner wall of the sleeve 130, the rotary driving member 110 is used to be in rotary connection with the base frame 500 or is used to be in rotary connection with the cushion framework 600, the sleeve 130 and the connecting member 200 are in sliding fit along the axial direction of the sleeve 130, the axial direction of the sleeve 130, the axial direction of the connecting member 200 and the driving direction of the linear driving mechanism 100 are the same for example, and the sleeve 130 is connected with the telescopic positioning assembly 300. Optionally, the rotary driving member 110 is a motor for example.
[0066] In the embodiment, the rotary driving member 110 drives the screw rod 120 to rotate, the screw rod 120 is in threaded connection with the sleeve 130, and the rotary motion of the rotary driving member 110 can be converted into linear motion of the sleeve 130 more accurately. This motion conversion mode can realize high-precision linear displacement control, so that the length of the linear driving mechanism 100 can be adjusted more accurately, and then the angle between the cushion framework 600 and the base frame 500 can be adjusted more accurately.
[0067] In actual use, the connecting member 200 and the sleeve 130 are in sliding fit along the axial direction of the sleeve 130, and at the same time, the connecting member 200 applies a certain force to the sleeve 130 for example, under the limitation of the force, the sleeve 130 cannot rotate around its own axis, but can only move in its own axial direction relative to the screw rod 120.
[0068] Optionally, the connecting member 200 is a cylindrical structure in the foregoing for example, and the sleeve 130 is located in the inner cavity of the connecting member 200 and is in sliding fit along the axial direction of the sleeve 130.
[0069] In other optional embodiments, a pneumatic cylinder can also be used as the linear driving mechanism 100.
[0070] Reference Figures 1 to 10 As shown, the application also provides a seat, which comprises a base frame 500, a cushion framework 600 and the seat adjusting device described in the foregoing, one of the fixed end of the linear driving mechanism 100 of the seat adjusting device and the connecting member 200 is in rotary connection with the base frame 500, and the other is in rotary connection with the cushion framework 600.
[0071] The seat adjusting device described in the foregoing can automatically adjust the seat in the simulated weightless state to the initial state through the driving assembly when the vehicle is in a collision, the safety belt has better constraint on the user in the initial state, and thus the risk of injury of the user is reduced. The seat provided in the embodiment of the present application comprises the seat adjusting device described in the foregoing, and thus the seat provided in the embodiment of the present application has a lower risk of injury of the user.
[0072] In another embodiment, referring to Figure 5 The rear end of the cushion framework 600 is rotationally connected with the base frame 500, and the seat further comprises a buffer 570 arranged on the base frame 500. When the seat is in the initial state, the front end of the cushion framework 600 is supported on the buffer 570. In this way, when the seat is switched from the simulated weightless state to the initial state, the buffer 570 can buffer the impact force of the cushion framework 600, so as to prevent the base frame 500 from being subjected to excessive force, thereby prolonging the service life of the base frame 500.
[0073] In actual use, when the seat is in the simulated weightless state, the front end of the cushion framework 600 is separated from the buffer 570, for example. During the process of switching the seat from the simulated weightless state to the initial state, the front end of the cushion framework 600 gradually comes into contact with the buffer 570, for example, until it is completely supported on the buffer 570. In addition, during the process of switching the seat from the simulated weightless state to the initial state, the included angle between the cushion framework 600 and the base frame 500 gradually decreases, for example. Conversely, during the process of switching the seat from the initial state to the simulated weightless state, the included angle between the cushion framework 600 and the base frame 500 gradually increases, for example.
[0074] Optionally, the buffer 570 is a buffer block, for example, and is made of an elastic material, for example. The buffer 570 itself is elastically deformed, thereby buffering the impact force of the cushion framework 600. In addition, referring to Figure 5 In order to facilitate the installation of the buffer 570, the base frame 500 is provided with a first mounting seat 580, for example, and the buffer 570 is mounted on the first mounting seat 580.
[0075] In other optional embodiments, the seat can also not comprise the buffer 570. In this case, when the seat is switched from the simulated weightless state to the initial state, the cushion framework 600 is directly in contact with the base frame 500, for example.
[0076] In one optional embodiment, the seat includes the aforementioned cushioning member 570, and the aforementioned connecting member 200 has a cylindrical structure, and the connecting member 200 transitionally engages with the drive end of the linear drive mechanism 100. With this configuration, during the transition from the simulated weightlessness state to the initial state, the friction between the connecting member 200 and the drive end of the linear drive mechanism 100, as well as the cushioning member 570, both contribute to the cushioning of the seat cushion frame 600. This allows the seat to transition to the initial state relatively smoothly.
[0077] Furthermore, the number of buffer elements 570 is, for example, at least two, including a first buffer element and a second buffer element. For example, each of the opposite sides of the seat cushion frame 600 is provided with a side plate 610, with the two side plates 610 corresponding to the first buffer element and the second buffer element respectively. When the seat is switched to the initial state, the two side plates 610 are supported on the first buffer element and the second buffer element respectively. With this arrangement, at least two buffer elements 570 jointly buffer the seat cushion frame 600, thereby allowing the seat to switch to the initial state more smoothly.
[0078] Furthermore, the number of seat adjustment devices mentioned above is, for example, at least two, with each seat adjustment device arranged side by side. With this arrangement, the drive ends of multiple sets of connectors 200 and linear drive mechanism 100 jointly cushion the seat cushion frame 600, which also allows the seat to switch to the initial state more smoothly.
[0079] In another embodiment, reference Figure 2 and Figure 3 As shown, the seat also includes a connecting plate 810 and a connecting rod 820. The first end of the connecting plate 810 is rotatably connected to the fixed end of the linear drive mechanism 100 or the connecting piece 200. The second end of the connecting plate 810 is rotatably connected to one end of the connecting rod 820. The other end of the connecting rod 820 is rotatably connected to the seat cushion frame 600. The third end of the connecting plate 810 is rotatably connected to the base frame 500.
[0080] In actual use, some of the force on the seat frame 600 is transmitted directly to the base frame 500 through the connecting rod 820 and the connecting plate 810. As a result, the force transmitted to the linear drive mechanism 100 is reduced, thereby extending the service life of the linear drive mechanism 100.
[0081] In other alternative embodiments, the seat may also exclude the connecting plate 810 and the connecting rod 820. In this case, one of the fixed end of the linear drive mechanism 100 and the connector 200 is rotatably connected to the seat cushion frame 600, for example, and the other is rotatably connected to the base frame 500, for example.
[0082] As one specific implementation method, refer to Figures 2 to 6As shown, the first end of the connecting plate 810 is rotatably connected with the fixed end of the linear driving mechanism 100 through a first shaft, and the second end of the connecting plate 810 is rotatably connected with the connecting rod 820 through a second shaft 710.
[0083] The base frame 500 includes, for example, a sliding piece 530, a guide rail 540, a first cross beam 510, a second cross beam 520, a first mounting piece 550, a second mounting piece 560, the first mounting seat 580 and the second mounting seat 590 mentioned above, the sliding piece 530 is above the guide rail 540 and is in sliding fit with the guide rail 540 along a first direction, the first cross beam 510 and the second cross beam 520 are arranged side by side along the first direction, and the length directions of the first cross beam 510 and the second cross beam 520 are both a second direction, the first direction is perpendicular to the second direction, and both are perpendicular to the height direction of the seat, the first direction is, for example, the direction indicated by an arrow line D in Figure 2 , and the second direction is, for example, the direction indicated by an arrow line E in Figure 2 .
[0084] The first cross beam 510 is connected with the sliding piece 530, the first mounting piece 550 is arranged on the first cross beam 510, and the third end of the connecting plate 810 is rotatably connected with the first mounting piece 550 through a third shaft 720.
[0085] The first mounting seat 580 and the second mounting seat 590 mentioned above are both arranged on the sliding piece 530, the second cross beam 520 is connected with the second mounting seat 590, the second mounting piece 560 is arranged on the second cross beam 520, and the connecting piece 200 is provided with, for example, a mounting part 210, which is rotatably connected with the second mounting piece 560 through a fourth shaft.
[0086] The rear end of the cushion framework 600 is connected with, for example, a third mounting piece 620, which is rotatably connected with the second mounting seat 590 through a fifth shaft. The cushion framework 600 is further connected with, for example, a fourth mounting piece 630, and the cushion framework 600 is provided with the side plate 610 mentioned above, and the connecting rod 820 is rotatably connected with the fourth mounting piece 630 through a sixth shaft 730, so as to realize the rotatable connection between the connecting rod 820 and the cushion framework 600.
[0087] In actual use, as shown in Figure 4 and Figure 6 , after the connecting relationship between the linear driving mechanism 100 and the connecting piece 200 is released, under the joint action of external force and gravity, the seat rotates, for example, about the third shaft 720 between the third end of the connecting plate 810 and the first mounting piece 550, and correspondingly, the driving end of the linear driving mechanism 100 slides relative to the connecting piece 200, so that the length of the whole member formed by the linear driving mechanism 100 and the connecting piece 200 becomes longer, thereby making the seat switch from the simulated weightlessness state to the initial state.
[0088] In a third aspect, the embodiments of the present application further provide a vehicle comprising the seat described above. The seat described above has a low risk of injury to the user, and the vehicle provided in the embodiments of the present application comprises the seat described above, so that the vehicle provided in the embodiments of the present application also has a low risk of injury to the user.
[0089] The embodiments of the present application are described above with reference to the drawings; however, the present application is not limited to the specific embodiments described above, but is merely illustrative, and is not restrictive. Those skilled in the art can make many modifications to the embodiments of the present application without departing from the spirit of the present application and the scope of protection of the claims, and all such modifications are within the scope of protection of the present application.
Claims
1. A device for adjusting a seat, characterized in that The application relates to a seat reclining device. The seat reclining device comprises a linear driving mechanism (100) and a connecting piece (200), the driving end of the linear driving mechanism (100) and the connecting piece (200) are slidingly matched along the driving direction of the linear driving mechanism (100), one of the fixed end of the linear driving mechanism (100) and the connecting piece (200) is used for being rotationally connected with the underframe (500) of a seat, and the other is used for being rotationally connected with the cushion framework (600) of the seat. The seat reclining device further comprises a telescopic positioning assembly (300), the telescopic direction of the telescopic positioning assembly (300) intersects the driving direction of the linear driving mechanism (100), one part of the telescopic positioning assembly (300) is connected with the driving end of the linear driving mechanism (100), and the other part is connected with the connecting piece (200). The seat reclining device further comprises a driving assembly, the driving assembly can drive the telescopic positioning assembly (300) to contract, so that the telescopic positioning assembly (300) is separated from the linear driving mechanism (100) or the connecting piece (200).
2. A seat adjustment device according to claim 1, characterised in that, The telescopic positioning assembly (300) comprises a cylinder (310), a piston (320) and a connecting rod (330), the piston (320) is located in the cylinder (310) and is slidingly matched with the cylinder (310) along the axial direction of the cylinder (310), the piston (320) divides the inner cavity of the cylinder (310) into a first cavity (311) and a second cavity (312), the first cavity (311) is communicated with the outside, one end of the connecting rod (330) is located in the second cavity (312) and is connected with the piston (320), the other end of the connecting rod (330) is connected with the linear driving mechanism (100) or the connecting piece (200), and the driving assembly drives the connecting rod (330) to move along the axial direction of the cylinder (310), so that the telescopic positioning assembly (300) is contracted.
3. A seat adjustment device according to claim 2, characterised in that, The driving assembly comprises an explosive (410) and an igniter, the explosive (410) is filled in the second cavity (312), the igniter is located in the second cavity (312) and is used for igniting the explosive (410) and driving the connecting rod (330) to move along the axial direction of the cylinder (310).
4. A seat adjustment device according to claim 2, wherein The connecting piece (200) is a cylindrical structure, the driving end of the linear driving mechanism (100) is located in the inner cavity of the connecting piece (200) and is slidingly matched with the connecting piece (200) along the axial direction of the connecting piece (200), and the end of the connecting rod (330) away from the piston (320) is connected with the driving end of the linear driving mechanism (100).
5. A seat adjustment device according to claim 4, wherein The connecting piece (200) is transitionally matched with the driving end of the linear driving mechanism (100).
6. The seating adjustment device of claim 1, wherein, The linear driving mechanism (100) comprises a rotary driving member (110), a screw rod (120) and a sleeve (130), an output end of the rotary driving member (110) is in transmission connection with one end of the screw rod (120), at least part of the screw rod (120) is located in the sleeve (130) and is in screw connection with an inner wall of the sleeve (130), the rotary driving member (110) is used to be rotationally connected with the base frame (500) or is used to be rotationally connected with the cushion frame (600), the sleeve (130) and the connecting member (200) are in sliding fit along an axial direction of the sleeve (130), and the sleeve (130) is connected with the telescopic positioning assembly (300).
7. A seat, characterized by The seat adjustment device comprises a base frame (500), a cushion frame (600) and the seat adjustment device according to any one of claims 1-6, one of the fixed end of the linear driving mechanism (100) of the seat adjustment device and the connecting member (200) is rotationally connected with the base frame (500), and the other is rotationally connected with the cushion frame (600).
8. The seat of claim 7, wherein, The rear end of the cushion frame (600) is rotationally connected with the base frame (500), and the seat further comprises a buffer member (570), the buffer member (570) is arranged on the base frame (500), and the front end of the cushion frame (600) is supported on the buffer member (570) when the seat is in an initial state.
9. The seat of claim 7, wherein, The seat further comprises a connecting plate (810) and a connecting rod (820), a first end of the connecting plate (810) is rotationally connected with the fixed end of the linear driving mechanism (100) or the connecting member (200), a second end of the connecting plate (810) is rotationally connected with one end of the connecting rod (820), the other end of the connecting rod (820) is rotationally connected with the cushion frame (600), and a third end of the connecting plate (810) is rotationally connected with the base frame (500).
10. A vehicle characterized by comprising: The seat according to any one of claims 7-9.