Seat framework, seat and vehicle

Abstract

The utility model relates to a seat skeleton, seat and vehicle, said seat skeleton includes: skeleton body, first rotating device and second rotating device, skeleton body includes seat frame and base, the base is provided the lower side of seat frame, first rotating device includes first rod, the first end of first rod is pivoted with the front end of seat frame, and the second end of first rod is pivoted with the front end of seat frame. The second rotating device comprises a second linear driving part and a third rod, the first end of the third rod is pivoted with the rear end of the base, the second end of the third rod is pivoted with the rear end of the seat frame, and the third end of the third rod is pivoted with the first end of the second linear driving part; the second end of the second linear driving piece is pivoted with the first end of the first rod, and the length of the second linear driving piece is adjustable so as to adjust the height of the seat frame. The transmission efficiency of the seat framework is high.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and in particular to a seat frame, a seat and a vehicle. Background Art

[0002] With the development of automobile intelligence and the continuous maturity of autonomous driving technology, passengers have higher and higher requirements for in-car comfort, and various forms of zero-gravity seats have appeared one after another. In order to adjust the zero-gravity posture of the seat, a height adjustment mechanism is usually provided at the lower end of the seat frame. In the related art, when adjusting the height of the seat frame, the lifting mechanism at the front end of the seat frame and the lifting mechanism at the rear end of the seat frame need to work simultaneously to lift or lower the seat frame as a whole, so the transmission efficiency of the above transmission structure is poor. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an embodiment of the utility model provides a seat frame, which can adjust the overall height of the seat frame through a second transmission device alone, thereby improving the transmission efficiency of the seat frame.

[0005] The embodiment of the utility model further provides a seat.

[0006] An embodiment of the utility model further provides a vehicle.

[0007] According to an embodiment of the utility model, the seat frame includes: a frame body, the frame body includes a seat frame and a base, and the base is arranged on the lower side of the seat frame; a first rotating device, the first rotating device includes a first rod, the first end of the first rod is pivoted to the front end of the seat frame, and the second end of the first rod is pivoted to the front end of the base; a second rotating device, the second rotating device includes a second linear drive member and a third rod, the first end of the third rod is pivoted to the rear end of the base, the second end of the third rod is pivoted to the rear end of the seat frame, the third end of the third rod is pivoted to the first end of the second linear drive member, the second end of the second linear drive member is pivoted to the first end of the first rod, and the length of the second linear drive member is adjustable to adjust the height of the seat frame.

[0008] According to the seat frame of the embodiment of the utility model, when the second linear driving member is extended, the second end of the second linear driving member can drive the first end of the first rod to lift upward. At the same time, the second linear driving member can also drive the third rod to rotate around the first end of the third rod in a vertical plane, so that the second end of the third rod moves upward, thereby simultaneously raising the height of the front end and the rear end of the seat frame.

[0009] Similarly, when the second linear driving member is shortened, the second end of the second linear driving member can drive the first end of the first rod to move downward. At the same time, the second linear driving member can also drive the third rod to rotate around the first end of the third rod in a vertical plane, so that the second end of the third rod moves downward, thereby reducing the height of the front and rear ends of the seat frame at the same time.

[0010] Therefore, the seat frame of the embodiment of the utility model can adjust the height of the seat frame by only one power source by setting the first rotating device and the second rotating device as the above-mentioned structure, which is beneficial to improve the transmission efficiency of the seat frame height adjustment, and the transmission is smoother, and the user experience is better.

[0011] In some embodiments, the first rotating device also includes a first linear driving member and a second rod, the second end of the first rod is pivotally connected to the first end of the second rod, the second end of the second rod is pivotally connected to the front end of the base, the third end of the second rod is pivotally connected to the first end of the first linear driving member, and the first linear driving member is arranged on the base and is used to drive the first rod and the second rod to rotate.

[0012] In some embodiments, the first rotating device is divided into two groups, and the two groups of the first rotating device are respectively arranged on the left and right sides of the base; the second rotating device is divided into two groups, and the two groups of the second rotating device are respectively arranged on the left and right sides of the base.

[0013] In some embodiments, the seat frame includes a seat frame body and a first intermediate rod, the first intermediate rod is penetrated through the seat frame body along the left-right direction of the base, the first ends of the two groups of the first rods and the second ends of the two groups of the second linear driving members are pivotally connected to the first intermediate rod; and / or, the seat frame includes a seat frame body and a second intermediate rod, the two ends of the second intermediate rod are respectively pivotally connected to the third ends of the third rods in the two groups of the second rotating devices, and the first ends of the two groups of the second linear driving members are connected to the second intermediate rod.

[0014] In some embodiments, the seat frame also includes a passive reset device, which includes a first detonator and a first fixing member, the first detonator is connected to the second rod, the second rod is provided with a first slide groove, the first slide groove extends along the front and rear direction of the seat frame, the first rotating device includes a first pivot, the first pivot is connected to the first end of the first linear drive member, and is rotatably passed through the front end of the first slide groove, the first fixing member is passed through the first slide groove and stopped at the rear side of the first pivot, when the first detonator is working, the first fixing member is separated from the first slide groove, and the second rod can move relative to the first pivot along the extension direction of the first slide groove, so that the second rod drives the first rod to move downward.

[0015] In some embodiments, the width dimension of the first slide groove gradually decreases in the direction from the front end to the rear end of the first slide groove, and the outer diameter of the first pivot is smaller than the width dimension of the rear end of the first slide groove.

[0016] In some embodiments, the passive reset device also includes a first energy absorbing sheet, which is mounted on the first pivot and connected to the second rod. The first energy absorbing sheet can break and absorb energy to prevent the second rod from moving relative to the first pivot, and the first fixing member abuts against the first pivot.

[0017] In some embodiments, the second rod includes a first connecting section, a second connecting section and a third connecting section, the first connecting section is arranged on a side of the second connecting section adjacent to the first rod along the left-right direction of the seat frame, the third connecting section is arranged on a side of the second connecting section away from the first rod along the left-right direction of the seat frame, the first connecting section is pivotally connected to the base and the first rod, the first slide groove is arranged on the third connecting section, the first detonator is connected to the third connecting section, and the first detonator is arranged on a side of the third connecting section away from the second connecting section.

[0018] The seat of the embodiment of the utility model comprises the seat frame described in any one of the embodiments of the utility model.

[0019] According to the seat of the embodiment of the utility model, when the second linear driving member is extended, the second end of the second linear driving member can drive the first end of the first rod to lift upward. At the same time, the second linear driving member can also drive the third rod to rotate around the first end of the third rod in a vertical plane, so that the second end of the third rod moves upward, thereby simultaneously raising the height of the front end and the rear end of the seat frame.

[0020] Similarly, when the second linear driving member is shortened, the second end of the second linear driving member can drive the first end of the first rod to move downward. At the same time, the second linear driving member can also drive the third rod to rotate around the first end of the third rod in a vertical plane, so that the second end of the third rod moves downward, thereby reducing the height of the front and rear ends of the seat frame at the same time.

[0021] Therefore, the seat frame of the embodiment of the utility model can adjust the height of the seat frame by only one power source by setting the first rotating device and the second rotating device as the above-mentioned structure, which is beneficial to improve the transmission efficiency of the seat frame height adjustment, and the transmission is smoother, and the user experience is better.

[0022] The vehicle of the embodiment of the utility model comprises the seat frame or the seat described in any one of the embodiments of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an axonometric view of a seat frame according to an embodiment of the utility model.

[0024] Figure 2 It is a side view of a seat frame according to an embodiment of the utility model.

[0025] Figure 3 It is a partial schematic diagram of a seat frame according to an embodiment of the utility model.

[0026] Figure 4 It is another partial schematic diagram of a seat frame of an embodiment of the utility model.

[0027] Figure 5 It is a partial schematic diagram of a seat frame (hiding the first end of the first linear drive member) of an embodiment of the utility model.

[0028] Figure 6 It is a schematic diagram of the installation of a first angle adjuster of a seat frame of another embodiment of the utility model.

[0029] Figure 7 It is a partial schematic diagram of a seat frame according to another embodiment of the present invention.

[0030] Figure 8 It is a schematic diagram of the installation of a first bracket and a second energy absorbing sheet of a seat frame of another embodiment of the utility model.

[0031] Reference numerals:

[0032] 1. frame body; 11. seat frame; 111. seat frame body; 112. first middle rod; 113. second middle rod; 12. base; 13. backrest;

[0033] 2. first rotating device; 21. first linear driving member; 22. first rod; 23. second rod; 231. first connecting section; 232. second connecting section; 233. third connecting section; 2331. first sliding slot; 24. first pivot;

[0034] 3. second rotating device; 31. second linear driving member; 32. third rod;

[0035] 41. first detonator; 421. first fixing member; 422. second fixing member; 423. third fixing member; 431. first energy absorbing sheet; 432. second energy absorbing sheet; 44. first guide member; 45. second detonator;

[0036] 5. first angle adjuster; 51. first angle adjuster body; 52. first bracket; 521. second slide groove; 53. second bracket;

[0037] 6. Active reset device; 61. Reset motor. DETAILED DESCRIPTION

[0038] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0039] Please refer to the following Figures 1 to 8 A seat frame, a seat and a vehicle according to embodiments of the present invention are described.

[0040] like Figure 1 , Figure 2 and Figure 4 As shown, the seat frame according to the embodiment of the utility model includes: a frame body 1, a first rotating device 2 and a second rotating device 3. The frame body 1 includes a seat frame 11 and a base 12, and the base 12 is arranged on the lower side of the seat frame 11. The first rotating device 2 includes a first rod 22, the first end of the first rod 22 is pivoted to the front end of the seat frame 11, and the second end of the first rod 22 is pivoted to the front end of the base 12. The second rotating device 3 includes a second linear drive member 31 and a third rod 32, the first end of the third rod 32 is pivoted to the rear end of the base 12, the second end of the third rod 32 is pivoted to the rear end of the seat frame 11, the third end of the third rod 32 is pivoted to the first end of the second linear drive member 31, the second end of the second linear drive member 31 is pivoted to the first end of the first rod 22, and the length of the second linear drive member 31 is adjustable to adjust the height of the seat frame 11.

[0041] According to the seat frame of the embodiment of the utility model, when the second linear driving member 31 is extended, the second end of the second linear driving member 31 can drive the first end of the first rod 22 to lift upward. At the same time, the second linear driving member 31 can also drive the third rod 32 to rotate around the first end of the third rod 32 in the vertical plane, so that the second end of the third rod 32 moves upward, thereby simultaneously raising the height of the front end and the rear end of the seat frame 11.

[0042] Similarly, when the second linear driving member 31 is shortened, the second end of the second linear driving member 31 can drive the first end of the first rod 22 to move downward. At the same time, the second linear driving member 31 can also drive the third rod 32 to rotate around the first end of the third rod 32 in a vertical plane, so that the second end of the third rod 32 moves downward, thereby simultaneously reducing the height of the front and rear ends of the seat frame 11.

[0043] Therefore, the seat frame of the embodiment of the utility model can adjust the height of the seat frame 11 by only one power source by setting the first rotating device 2 and the second rotating device 3 as the above-mentioned structure, which is beneficial to improve the transmission efficiency of the height adjustment of the seat frame 11, and the transmission is smoother, and the user experience is better.

[0044] It should be noted that the second end of the first rod 22 and the front end of the base 12 may be connected to each other in a direct pivoting manner or an indirect pivoting manner.

[0045] like Figure 5 As shown, the second end of the first rod 22 is connected to the front end of the base 12 by an indirect pivoting manner. Specifically, the first rotating device 2 also includes a first linear driving member 21 and a second rod 23. The second end of the first rod 22 is pivoted to the first end of the second rod 23, and the second end of the second rod 23 is pivoted to the front end of the base 12. It can be understood that the first rod 22 is indirectly pivoted to the front end of the base 12 through the second rod 23. The third end of the second rod 23 is pivoted to the first end of the first linear driving member 21, and the first linear driving member 21 is provided on the base 12 and is used to drive the first rod 22 and the second rod 23 to rotate.

[0046] When the length of the first linear driving member 21 is extended, the first linear driving member 21 can drive the second rod 23 to rotate downward around the second end of the second rod 23, thereby driving the first rod 22 to move downward, and accordingly, the first rod 22 can drive the front end of the seat frame 11 to rotate downward to reduce the elevation angle of the seat frame 11. Similarly, when the length of the first linear driving member 21 is shortened, the first linear driving member 21 can drive the second rod 23 to rotate upward around the second end of the second rod 23, thereby driving the first rod 22 to lift upward, and accordingly, the first rod 22 can drive the front end of the seat frame 11 to rotate upward to increase the elevation angle of the seat frame 11.

[0047] When the second linear driving member 31 is extended, since the first end of the second linear driving member 31 is connected to the third end of the third rod 32, and the second end of the second linear driving member 31 is pivotally connected to the second end of the first rod 22, the second end of the second linear driving member 31 can drive the upper end of the first rod 22 to lift upward, and accordingly, the front end of the seat frame 11 can rise synchronously. At the same time, when the second linear driving member 31 is extended, it can also drive the third rod 32 to rotate around the first end of the third rod 32 in the vertical plane, thereby making the second end of the third rod 32 move upward, and accordingly, the rear end of the seat frame 11 can rise synchronously.

[0048] According to the seat frame of the embodiment of the utility model, the first linear drive member 21 can drive the second rod 23 to rotate around the second end of the second rod 23, so that the second rod 23 can drive the first rod 22 to rotate synchronously to complete the angle adjustment of the front end of the seat frame 11. In addition, the seat frame of the embodiment of the utility model can raise or lower the height of the seat frame 11 as a whole by setting the second rotating device 3. Since the second linear drive member 31 can drive the first rod 22 and the third rod 32 to rotate at the same time, the height adjustment of the seat frame 11 can be completed without driving the first linear drive member 21 to move, which is conducive to improving the transmission efficiency of the height adjustment of the seat frame 11, and the transmission is more stable, and the user experience is better.

[0049] It should be noted that if Figure 1 and Figure 4 As shown, the pivot axis between the second end of the second linear drive member 31 and the first end of the first rod 22 is in line with the pivot axis between the first end of the first rod 22 and the front end of the seat frame 11. The inventor of the present application has found through experimental research that, compared with the solution in the related art that "the pivot axis between the second end of the second linear drive member 31 and the first end of the first rod 22 is not in line with the pivot axis between the first end of the first rod 22 and the front end of the seat frame 11", the present application can greatly improve the efficiency of raising (lowering) the height of the seat frame 11, and make the stability of the seat frame 11 better when adjusting the height.

[0050] For example, the first linear driving member 21 and the second linear driving member 31 may be linear screw motors, or linear air cylinders or linear oil cylinders, which are not limited in the present application.

[0051] Optionally, the first rotating device 2 is provided in two groups, and the two groups of the first rotating device 2 are respectively arranged on the left and right sides of the base 12, and the second rotating device 3 is provided in two groups, and the two groups of the second rotating device 3 are respectively arranged on the left and right sides of the base 12. The seat frame of the embodiment of the utility model is provided with two groups of the first rotating device 2 and the second rotating device 3, which can improve the stability of the front tilt angle adjustment and the height adjustment of the seat frame on the one hand, and on the other hand, can improve the structural strength of the seat frame, improve the bearing capacity of the seat frame, and extend the service life of the seat frame.

[0052] Specifically, Figure 1 and Figure 4As shown, the seat frame 11 includes a seat frame body 111 and a first intermediate rod 112. The first intermediate rod 112 is disposed in the seat frame body 111 along the left-right direction of the base 12. The first ends of the two groups of first rods 22 and the second ends of the two groups of second linear driving members 31 are both pivotally connected to the first intermediate rod 112. It can be understood that the first intermediate rod 112 can connect the first rods 22 of the two groups of first rotating devices 2 to ensure the synchronization of the lifting of the two groups of first rotating devices 2, which is conducive to reducing the fluctuation generated when the angle of the front end of the seat frame 11 is adjusted. In addition, since the first intermediate rod 112 is disposed in the seat frame body 111 along the left-right direction of the base 12, the structural strength of the seat frame 11 can be improved, and the bearing capacity of the seat frame 11 can be improved.

[0053] Furthermore, if Figure 1 and Figure 4 As shown, the seat frame 11 includes a seat frame body 111 and a second intermediate rod 113, the two ends of the second intermediate rod 113 are respectively pivotally connected to the third ends of the two groups of third rods 32, and the first ends of the two groups of second linear driving members 31 are connected to the second intermediate rod 113. It can be understood that the second intermediate rod 113 can connect the third rods 32 of the two groups of second rotating devices 3 to ensure the synchronization of the lifting of the two groups of second rotating devices 3, which is conducive to reducing the fluctuation generated when the angle of the rear end of the seat frame 11 is adjusted, and because the second intermediate rod 113 is penetrated in the seat frame body 111 along the left and right direction of the base 12, the structural strength of the seat frame 11 can be improved, and the bearing capacity of the seat frame 11 can be improved.

[0054] In some embodiments, Figure 4 As shown, the seat frame also includes a passive reset device, which includes a first detonator 41. The first detonator 41 is connected to the second rod 23. When the first detonator 41 is working, the second rod 23 is movable relative to the first end of the first linear drive member 21 so that the second rod 23 can rotate downward around the second end of the second rod 23.

[0055] According to the seat frame of the embodiment of the utility model, when the first detonator 41 is working, the second rod 23 can move relative to the first end of the first linear drive member 21, that is, the second rod 23 is unlocked from the first linear drive member 21, and under the gravity and inertia of the occupant, the second rod 23 can rotate downward around the second end of the second rod 23, thereby driving the first rod 22 and the front end of the seat frame 11 to move downward, thereby reducing the elevation angle of the front end of the seat frame 11. Therefore, the seat frame of the embodiment of the utility model integrates the first detonator 41 on the second rod 23, and has a simple structural design, occupies less space in the seat frame, and has a high degree of integration.

[0056] For example, the arrangement points of the first end of the second rod 23, the second end of the second rod 23 and the third end of the second rod 23 are generally in a triangular shape, so that the connecting rod mechanism formed by the first rod 22, the second rod 23, the seat frame 11 and the base 12 runs more smoothly.

[0057] In some embodiments, Figure 3 and Figure 5 As shown, the second rod 23 is provided with a first slide groove 2331, and the first slide groove 2331 extends along the front and rear direction of the seat frame 11. The first rotating device 2 includes a first pivot 24, and the first pivot 24 is connected to the first end of the first linear drive member 21, and is rotatably penetrated through the front end of the first slide groove 2331. The passive reset device includes a first fixing member 421, and the first fixing member 421 is penetrated through the first slide groove 2331 and stopped at the rear side of the first pivot 24. When the first detonator 41 is working, the first fixing member 421 can be separated from the first slide groove 2331, so that the second rod 23 can move relative to the first pivot 24 along the extension direction of the first slide groove 2331.

[0058] It is understandable that if Figure 3 and Figure 5 As shown, when the first detonator 41 is not working, the first fixing member 421 can prevent the first slide slot 2331 from moving relative to the first pivot 24 because it is inserted into the first slide slot 2331 and stops at the rear side of the first pivot 24, so as to ensure that the first linear drive member 21 can normally drive the second rod 23 to rotate. When the first detonator 41 is working, the first fixing member 421 is separated from the first slide slot 2331. Since the first pivot 24 is not hindered by the first fixing member 421, the second rod 23 can move relative to the first pivot 24 along the extension direction of the first slide slot 2331 under the gravity and inertia of the occupant. In other words, when the first detonator 41 is working, the first linear drive member 21 remains stationary, and the second rod 23 can rotate forward under the guidance of the first slide slot 2331, so as to drive the first rod 22 to descend, thereby reducing the height of the front end of the seat frame 11.

[0059] The seat frame of the embodiment of the utility model can constrain the moving track of the second rod 23 through the first pivot 24 and the first slide groove 2331 to improve the reliability of the reset of the seat frame 11. In addition, the application can constrain the end point of the passive reset of the seat frame 11 by constraining the extension length of the first slide groove 2331. In other words, when the seat frame 11 is passively reset to the set position, the second rod 23 can be stopped from continuing to rotate by the first pivot 24, thereby ensuring that the occupant returns to the best collision posture.

[0060] It should be noted that the first slide groove 2331 can extend horizontally or obliquely backward. The present application does not specifically limit the inclination angle and extension length of the first slide groove 2331, and can be designed according to the actual seat type.

[0061] Alternatively, if Figure 5 As shown, in the direction from the front end of the first slide groove 2331 to the rear end of the first slide groove 2331 , the width dimension of the first slide groove 2331 gradually decreases, and the outer diameter of the first pivot 24 is smaller than the width dimension of the rear end of the first slide groove 2331 .

[0062] It should be noted that the width direction of the first slide groove 2331, the extension direction of the first slide groove 2331 and the thickness direction of the second rod 23 are orthogonal to each other. Figure 5 As shown, the width dimension of the first sliding groove 2331, that is, the spacing dimension of the first sliding groove 2331 generally along the up and down direction.

[0063] Therefore, when the first slide groove 2331 slides relative to the first pivot 24, the second rod 23 can rotate downward with damping. In other words, when the first slide groove 2331 slides relative to the first pivot 24, since the width of the first slide groove 2331 gradually narrows, the side wall of the first slide groove 2331 will interfere with the first pivot 24, thereby absorbing the energy of the seat frame 11 when it is passively reset, so as to achieve energy absorption and better protect the safety of the occupants.

[0064] Alternatively, if Figure 5 As shown, the passive reset device further includes a first energy absorbing sheet 431, which is sleeved on the first pivot 24 and connected to the second rod 23. The first energy absorbing sheet 431 can be broken to absorb energy, so as to prevent the second rod 23 from moving relative to the first pivot 24. For example, the first energy absorbing sheet 431 can be welded or integrally formed on the second rod 23, and the first pivot 24 is penetrated by the first energy absorbing sheet 431. When the first slide groove 2331 slides relative to the first pivot 24, the first energy absorbing sheet 431 can be broken and deformed due to the downward impact force of the occupant, thereby achieving the energy absorption effect to better protect the safety of the occupant.

[0065] For example, the first energy absorbing sheet 431 includes an outer ring portion, an inner ring portion and an energy absorbing portion (not shown), the outer ring portion is arranged outside the inner ring portion, and the outer ring portion and the inner ring portion are connected through one or more energy absorbing portions, the outer ring portion is welded or integrally formed on the second rod 23, and the inner ring portion is sleeved on the first pivot 24. When the first slide groove 2331 slides relative to the first pivot 24, the energy absorbing portion can be broken and deformed with the outer ring portion or the inner ring portion due to the impact force of the seat frame 11, so as to achieve the energy absorbing effect.

[0066] In one example, the first fixing member 421 can directly abut the first pivot 24. In other words, there is no gap between the first fixing member 421 and the first pivot 24, thereby ensuring the reliability of the first fixing member 421 stopping the first pivot 24, that is, preventing the first pivot 24 from moving relative to the first slide groove 2331 when the first detonator 41 is not in a working state, thereby avoiding the problem of failure of the passive reset device.

[0067] In other examples, part of the first energy absorbing sheet 431 abuts between the first pivot 24 and the first fixing member 421. It is understandable that the first fixing member 421 can prevent the first pivot 24 from moving relative to the first slide slot 2331 through the first energy absorbing sheet 431, so as to prevent the first pivot 24 from moving relative to the first slide slot 2331 when the first detonator 41 is not in operation, thereby avoiding the problem of failure of the passive reset device.

[0068] Alternatively, if Figure 4 As shown, the second rod 23 includes a first connecting section 231, a second connecting section 232 and a third connecting section 233. The first connecting section 231 is arranged on a side of the second connecting section 232 adjacent to the first rod 22 along the left-right direction of the seat frame 11, and the third connecting section 233 is arranged on a side of the second connecting section 232 away from the first rod 22 along the left-right direction of the seat frame 11. The first connecting section 231 is pivotally connected to the base 12 and the first rod 22, the first sliding groove 2331 is arranged on the third connecting section 233, the first detonator 41 is connected to the third connecting section 233, and the first detonator 41 is arranged on a side of the third connecting section 233 away from the second connecting section 232. The seat frame of the embodiment of the utility model can avoid the problem of interference between the first detonator 41, the first rod 22 and the second rod 23 when the first rotating device 2 rotates by setting the second rod 23 to the above-mentioned structure, and by optimizing the second rod 23, it is beneficial to reduce the size of the second rod 23 along the front and rear direction of the seat frame 11, improve the structural strength of the second rod 23, and make the seat frame more compact and the spatial layout structure better.

[0069] For example, Figure 4 As shown, the connection structure of the first connecting segment 231, the second connecting segment 232 and the third connecting segment 233 is generally Z-shaped, the first connecting segment 231 and the second connecting segment 232 are generally parallel, the second connecting segment 232 is arranged between the first connecting segment 231 and the second connecting segment 232, and has a certain angle with the first connecting segment 231 and the third connecting segment 233.

[0070] In some embodiments, Figures 6 to 8As shown, the skeleton body 1 also includes a backrest 13 and a first recliner 5, and the first recliner 5 includes a first recliner body 51, a first bracket 52 and a second bracket 53, and the first bracket 52 and the second bracket 53 are both connected to the first recliner body 51. It should be noted that the first bracket 52 is connected to the fixed part of the first recliner body 51, and the second bracket 53 is connected to the rotating part of the first recliner body 51. Therefore, when the first recliner body 51 rotates, the angle between the first bracket 52 and the second bracket 53 can be changed.

[0071] The first bracket 52 is connected to the seat frame 11, the second bracket 53 is connected to the backrest 13, the first angle adjuster body 51 is used to adjust the angle between the first bracket 52 and the second bracket 53, the passive reset device also includes a second detonator 45, a second fixing member 422 and a third fixing member 423, the second fixing member 422 and the third fixing member 423 are arranged at intervals, and are both penetrated by the first bracket 52 and the seat frame 11, the second detonator 45 is connected to the second fixing member 422, and when the second detonator 45 is working, it can drive the second fixing member 422 to separate from the first bracket 52 and the seat frame 11, so that the backrest 13 rotates forward around the axis of the third fixing member 423.

[0072] According to the seat frame of the embodiment of the utility model, when the vehicle is about to be hit, the controller can receive a pre-collision signal and can control the reset motor 61 to start. The reset motor 61 drives the first recliner body 51 to rotate so that the backrest 13 rotates forward around the axis of the first recliner body 51, thereby resetting the backrest 13 and returning the occupant to the best posture to meet the collision. In addition, after the vehicle collides, the second detonator 45 works to separate the second fixing member 422 from the first bracket 52 and the seat frame 11. At this time, the first bracket 52 and the seat frame 11 are connected through the third fixing member 423. Under the inertial force of the occupant and the traction of the safety belt on the seat frame, the backrest 13 can be rotated forward around the axis of the third fixing member 423 to reset the backrest 13.

[0073] The seat frame also includes an active reset device 6, which includes a reset motor 61 and a controller. The controller and the first recliner body 51 are both connected to the reset motor 61. When the controller receives a pre-collision signal, the reset motor 61 can drive the first recliner body 51 to rotate so that the backrest 13 rotates forward around the axis of the first recliner body 51.

[0074] Therefore, the seat frame of the embodiment of the utility model can actively and passively reset the backrest 13 through two safety measures, namely, an active reset device 6 and a passive reset device, so as to meet the safety protection of the occupants in a zero-gravity posture during driving, and has high reliability.

[0075] On the other hand, the passive reset device of the seat frame of the embodiment of the utility model requires a relatively small number of parts, and the passive reset of the backrest 13 can be completed only by the second detonator 45, the second fixing member 422 and the third fixing member 423. The structural design is simple, easy to process and manufacture, and the cost is low.

[0076] It is understandable that the vehicle is provided with a sensor (not shown) for detecting whether the vehicle is in collision and for providing an early warning of an impending collision. In other words, the sensor can sense whether there is a danger in the driving scene outside the vehicle. When the system determines that the vehicle is about to collide, a pre-collision signal can be transmitted to the controller, whereby the controller can drive the reset motor 61 to rotate rapidly. Since the first recliner body 51 is connected to the backrest 13 via the second bracket 53, the first recliner body 51 can drive the backrest 13 to reset rapidly via the second bracket 53, so that the occupant returns to the best posture to meet the collision.

[0077] It should be noted that when the system determines that the active reset device 6 can meet the safety expectations, the passive reset device may not be activated. On the contrary, when the system determines that the active reset device 6 cannot meet the safety expectations, the passive reset device needs to be activated.

[0078] Specifically, after the vehicle collides, the second detonator 45 will be detonated. When the second detonator 45 is detonated, the second fixing member 422 can be driven to separate from the first bracket 52 and the seat frame 11, so that the first bracket 52 and the seat frame 11 are only connected through the third fixing member 423. Under the inertial force of the occupant and the traction of the safety belt on the seat frame, the occupant can drive the backrest 13 to rotate forward. At this time, the first recliner 5 and the backrest 13 will simultaneously rotate forward around the axis of the third fixing member 423 to reset the backrest 13, thereby allowing the occupant to return to the best posture to meet the collision.

[0079] like Figure 1 As shown, the reset motor 61 can normally adjust the angle of the first angle adjuster 5 when the vehicle is not in danger. For example, when the system senses that the driving scene outside the vehicle is risky, the safety calculation module determines the severity based on the status of the occupants in the vehicle and the status of the vehicle, and when an active reset signal is issued, the backrest 13 can be driven to quickly return to 20 degrees within 700ms, so that the occupants return to the best posture to prepare for the collision.

[0080] Alternatively, if Figure 7 and Figure 8As shown, the first bracket 52 is provided with a second slide groove 521, the second slide groove 521 extends along the second arc, the center of the second arc is located on the axis of the third fixing member 423, the second fixing member 422 is inserted through the second slide groove 521 and the first bracket 52, and the second fixing member 422 is arranged adjacent to the bottom of the second slide groove 521, and the passive reset device further includes a first guide member 44, the first guide member 44 is inserted through the second slide groove 521 and the first bracket 52, and the first guide member 44 is arranged adjacent to the top of the second slide groove 521. It can be understood that when the backrest 13 is passively reset, the first guide member 44 is fixed, and the second slide groove 521 can slide relative to the first guide member 44 along the second arc. The first guide member 44 can guide and limit the movement of the first bracket 52 to improve the reliability of the reset of the backrest 13.

[0081] In addition, the present application can constrain the end point of the passive reset of the backrest 13 by constraining the extension length of the second slide groove 521. In other words, when the backrest 13 is passively reset to the set position, the first guide member 44 can stop the first bracket 52 from continuing to rotate, thereby ensuring that the occupant returns to the optimal collision posture.

[0082] Alternatively, if Figure 7 and Figure 8 As shown, in the direction from the top of the second slide groove 521 to the bottom of the second slide groove 521 , the width dimension of the second slide groove 521 gradually decreases, and the outer diameter of the first guide member 44 is smaller than the width dimension of the bottom of the second slide groove 521 .

[0083] It should be noted that if Figure 8 As shown, the distance between the two side walls of the second slide groove 521 along the direction orthogonal to the extension direction thereof (i.e., the side wall adjacent to the third fixing member 423 and the side wall away from the third fixing member 423) is the width dimension of the second slide groove 521. In other words, the width direction of the second slide groove 521, the extension direction of the second slide groove 521, and the thickness of the first bracket 52 are orthogonal to each other.

[0084] It is understandable that the width of the second slide groove 521 gradually decreases from top to bottom, so that when the second slide groove 521 slides relative to the first guide member 44, the first bracket 52 can rotate forward with damping. In other words, when the second slide groove 521 slides relative to the first guide member 44, due to the gradually narrowing width of the second slide groove 521, the side wall of the second slide groove 521 will interfere with the first guide member 44, thereby absorbing the energy of the backrest 13 when it is passively reset, so as to achieve energy absorption and better protect the safety of the occupants.

[0085] Alternatively, if Figure 7 and Figure 8As shown, the passive reset device further includes a second energy absorbing sheet 432, which is sleeved on the first guide member 44 and connected to the first bracket 52. The second energy absorbing sheet 432 can be broken to absorb energy, so as to prevent the backrest 13 from rotating forward around the axis of the third fixing member 423. For example, the second energy absorbing sheet 432 can be welded or integrally formed on the first bracket 52, and the first guide member 44 is penetrated by the second energy absorbing sheet 432. When the second slide groove 521 slides relative to the first guide member 44, the second energy absorbing sheet 432 can be broken and deformed due to the impact force of the backrest 13 and the safety belt, thereby achieving the energy absorption effect to better protect the safety of the occupants.

[0086] A seat in another embodiment of the present invention comprises a seat frame and a safety belt. The seat frame is the seat frame of the present invention, and the safety belt is arranged on the seat frame. The technical advantages of the seat in the embodiment of the present invention are the same as the technical advantages of the seat frame in the above embodiment, and will not be repeated here.

[0087] When the vehicle brakes suddenly or collides, the occupant can drive the backrest 13 to move forward through the safety belt. For example, the safety belt is a pre-tensioned safety belt.

[0088] Furthermore, the seat also includes an airbag, which includes a side airbag and a seat cushion airbag. The side airbag is arranged on one side of the backrest 13 along the left-right direction of the backrest 13 , and the seat cushion airbag is arranged on the upper side of the seat frame 11 .

[0089] A vehicle of another embodiment of the present invention comprises the seat frame or seat of the present invention. The technical advantages of the vehicle of the embodiment of the present invention are the same as the technical advantages of the seat frame or seat of the above embodiment, which will not be repeated here.

[0090] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0091] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0092] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0093] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0094] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0095] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are illustrative and cannot be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A seat frame, characterized in that: include: A skeleton body (1), the skeleton body (1) comprising a seat frame (11) and a base (12), the base (12) being arranged on the lower side of the seat frame (11); A first rotating device (2), the first rotating device (2) comprising a first rod (22), a first end of the first rod (22) being pivotally connected to a front end of the seat frame (11), and a second end of the first rod (22) being pivotally connected to a front end of the base (12); A second rotating device (3), the second rotating device (3) comprises a second linear driving member (31) and a third rod (32), the first end of the third rod (32) is pivotally connected to the rear end of the base (12), the second end of the third rod (32) is pivotally connected to the rear end of the seat frame (11), the third end of the third rod (32) is pivotally connected to the first end of the second linear driving member (31), the second end of the second linear driving member (31) is pivotally connected to the first end of the first rod (22), and the length of the second linear driving member (31) is adjustable to adjust the height of the seat frame (11).

2. The seat frame according to claim 1, characterized in that: The first rotating device (2) further comprises a first linear driving member (21) and a second rod (23); the second end of the first rod (22) is pivotally connected to the first end of the second rod (23); the second end of the second rod (23) is pivotally connected to the front end of the base (12); the third end of the second rod (23) is pivotally connected to the first end of the first linear driving member (21); the first linear driving member (21) is arranged on the base (12) and is used to drive the first rod (22) and the second rod (23) to rotate.

3. The seat frame according to claim 1, characterized in that: The first rotating devices (2) are in two groups, and the two groups of the first rotating devices (2) are arranged on the left and right sides of the base (12) respectively; the second rotating devices (3) are in two groups, and the two groups of the second rotating devices (3) are arranged on the left and right sides of the base (12) respectively.

4. The seat frame according to claim 3, characterized in that: The seat frame (11) comprises a seat frame body (111) and a first intermediate rod (112), wherein the first intermediate rod (112) is arranged in the seat frame body (111) along the left-right direction of the base (12), and the first ends of the two groups of the first rods (22) and the second ends of the two groups of the second linear driving members (31) are both pivotally connected to the first intermediate rod (112); And / or, the seat frame (11) comprises a seat frame body (111) and a second intermediate rod (113), two ends of the second intermediate rod (113) are respectively pivotally connected to the third ends of the third rods (32) in the two groups of the second rotating devices (3), and the first ends of the two groups of the second linear driving members (31) are both connected to the second intermediate rod (113).

5. The seat frame according to claim 2, characterized in that: The seat frame also includes a passive reset device, which includes a first detonator (41) and a first fixing member (421), wherein the first detonator (41) is connected to the second rod (23), the second rod (23) is provided with a first slide groove (2331), the first slide groove (2331) extends along the front-rear direction of the seat frame (11), the first rotating device (2) includes a first pivot (24), the first pivot (24) is connected to the first end of the first linear drive member (21), and the rotating device (2) includes a first pivot (24). The first fixing member (421) is movably arranged at the front end of the first slide groove (2331), the first fixing member (421) is arranged in the first slide groove (2331) and is stopped at the rear side of the first pivot (24), when the first detonator (41) is working, the first fixing member (421) is separated from the first slide groove (2331), and the second rod (23) can move relative to the first pivot (24) along the extension direction of the first slide groove (2331), so that the second rod (23) drives the first rod (22) to move downward.

6. The seat frame according to claim 5, characterized in that: In the direction from the front end of the first slide groove (2331) to the rear end of the first slide groove (2331), the width dimension of the first slide groove (2331) gradually decreases, and the outer diameter of the first pivot (24) is smaller than the width dimension of the rear end of the first slide groove (2331).

7. The seat frame according to claim 5, characterized in that: The passive reset device further comprises a first energy absorbing sheet (431), the first energy absorbing sheet (431) being sleeved on the first pivot (24) and connected to the second rod (23), the first energy absorbing sheet (431) being breakable to absorb energy so as to prevent the second rod (23) from moving relative to the first pivot (24), and the first fixing member (421) being in contact with the first pivot (24).

8. The seat frame according to claim 5, characterized in that: The second rod (23) includes a first connecting section (231), a second connecting section (232) and a third connecting section (233). The first connecting section (231) is arranged on a side of the second connecting section (232) adjacent to the first rod (22) along the left-right direction of the seat frame (11). The third connecting section (233) is arranged on a side of the second connecting section (232) away from the first rod (22) along the left-right direction of the seat frame (11). The first connecting section (231) is pivotally connected to the base (12) and the first rod (22). The first sliding groove (2331) is arranged on the third connecting section (233). The first detonator (41) is connected to the third connecting section (233), and the first detonator (41) is arranged on a side of the third connecting section (233) away from the second connecting section (232).

9. A seat, characterized in that: The seat frame comprises the seat frame described in any one of claims 1-8.

10. A vehicle, characterized in that: The invention comprises the seat frame according to any one of claims 1 to 8 or the seat according to claim 9.

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