Seat adjusting assembly, seat and vehicle

Abstract

The invention discloses a seat adjusting assembly, a seat and a vehicle, the seat adjusting assembly comprises a seat frame assembly, a sliding assembly and a first driving mechanism, the front end of a first frame is rotatably connected with a second frame, the first end of a first connecting rod is rotatably connected with the rear end of the first frame, and the second end of the first connecting rod is rotatably connected with the first end of a second connecting rod; the first connecting plate is arranged on the first sliding rail and provided with a sliding groove extending in the front-back direction, the second connecting plate is arranged on the second sliding rail and connected with the second frame, the second end of the second connecting rod is provided with a first connecting piece, and the first connecting piece is arranged in the sliding groove in a sliding mode in the front-back direction and can rotate relative to the first connecting plate. The middle of the second connecting rod is rotatably connected with the second connecting plate, the sliding groove at least comprises a first adjusting section, the front end and the rear end of the first adjusting section are different in height, and the first driving mechanism is used for driving the first sliding rail to slide along the second sliding rail. According to the seat adjusting assembly, the adjusting speed design flexibility and the adjusting stability are high.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle seat adjustment assemblies, and in particular to a seat adjustment assembly, a seat and a vehicle. Background Art

[0002] With the continuous improvement of living standards, users' demands for vehicle comfort when purchasing vehicles are also increasing. Among them, the comfort of the vehicle's seat adjustment assembly directly affects the user's driving experience. Therefore, car companies gradually pay attention to the adjustable ability of the seat adjustment assembly to improve riding comfort. For example, the height of the rear end and the front end of the seat cushion can be adjusted independently. However, the flexibility of the seat posture adjustment rate design and the transmission stability in the relevant technology are obviously insufficient. Therefore, there is room for improvement. Summary of the invention

[0003] A first aspect of the present invention provides a seat adjustment assembly, which has the advantages of flexibility in adjusting rate design and high adjustment stability.

[0004] According to the first aspect of the present invention, the seat adjustment assembly includes: a seat frame assembly, including a first frame, a second frame and a connecting rod mechanism, the front end of the first frame is rotatably connected to the second frame, the connecting rod mechanism includes a first connecting rod and a second connecting rod, the first end of the first connecting rod is rotatably connected to the rear end of the first frame, and the second end of the first connecting rod is rotatably connected to the first end of the second connecting rod; a sliding assembly, including a first slide rail, a second slide rail, a first connecting plate and a second connecting plate, the first slide rail is slidably arranged on the second slide rail along the front-back direction, the first connecting plate is arranged on the first slide rail and is formed with a slide groove extending along the front-back direction, the second connecting plate is arranged on the second slide rail and connected to the second frame, the second end of the second connecting rod is provided with a first connecting member, the first connecting member is slidably arranged in the slide groove along the front-back direction and is rotatable relative to the first connecting plate, the second connecting rod is rotatably connected to the second connecting plate, the slide groove includes at least a first adjustment section, and the front and rear ends of the first adjustment section have different heights; a first driving mechanism is used to drive the first slide rail to slide along the second slide rail.

[0005] According to the seat adjustment assembly of the first aspect of the present invention, the lifting or lowering rate of the first connecting member can be flexibly controlled by adjusting the slope of the first adjustment section, thereby improving the design flexibility of the lifting or lowering rate of the rear end of the first frame. In addition, the rotational connection between the second connecting rod and the second connecting plate can keep the second connecting rod fixed relative to the rotation fulcrum of the second connecting plate, thereby improving the reliability of the transmission of the connecting rod mechanism and improving the stability of controlling the lifting or lowering of the rear end of the first frame.

[0006] According to some embodiments of the present invention, the connecting rod mechanism also includes a third connecting rod and a fourth connecting rod, the first end of the third connecting rod is rotatably connected to the front end of the second frame, the second end of the third connecting rod is rotatably connected to the first end of the fourth connecting rod, the rear end of the second frame is rotatably connected to the second connecting plate, the second end of the fourth connecting rod is provided with a second connecting member, the second connecting member is slidably arranged in the sliding groove along the front and rear directions and is rotatable relative to the first connecting plate, the fourth connecting rod is rotatably connected to the second connecting plate, the sliding groove also includes a second adjustment section, a first horizontal section and a second horizontal section, the first adjustment section is connected to the first horizontal section, the front and rear ends of the second adjustment section are different in height, the second adjustment section is connected to the second horizontal section, the first connecting member is slidable between the first adjustment section and the first horizontal section, and the second connecting member is slidable between the second adjustment section and the second horizontal section.

[0007] According to some embodiments of the present invention, the first adjustment section is located at the rear side of the first horizontal section, the rear end of the first adjustment section is lower than the front end of the first adjustment section, the second adjustment section is located at the front side of the second horizontal section, the rear end of the second adjustment section is higher than the front end of the second adjustment section, the first horizontal section and the second horizontal section are at the same height, and the rear end of the second horizontal section is connected to the front end of the first horizontal section.

[0008] According to some embodiments of the present invention, the seat adjustment assembly has at least a first state, a second state and a third state; wherein: in the first state, the first connecting member is located in the first adjustment section, and the second connecting member is located in the second horizontal section; in the second state, the first connecting member is located in the first horizontal section, and the second connecting member is located in the second adjustment section; in the third state, the first connecting member is located in the first horizontal section, and the second connecting member is located in the second horizontal section.

[0009] According to some embodiments of the present invention, the sliding assembly and the connecting rod mechanism are each provided with two arranged at intervals along the left-right direction, the first driving mechanism includes a first driving motor, the first sliding rails of the sliding assembly on both sides are drivingly connected to the output shaft of the first driving motor, and the first driving motor is used to drive the first sliding rails on both sides to slide.

[0010] According to some embodiments of the present invention, a worm wheel is provided on the first slide rail, and a worm is provided on the second slide rail for transmission connection with the worm wheel. The first driving mechanism also includes a first transmission shaft and a second transmission shaft. The first driving motor is rotationally connected to the worm wheels on both sides through the first transmission shaft and the second transmission shaft, respectively, and is used to drive the worm wheel to rotate.

[0011] According to some embodiments of the present invention, the first drive motor is a dual-output shaft motor, and the first transmission shaft and the second transmission shaft are respectively connected to two output shafts of the dual-output shaft motor; and / or, the first transmission shaft and the second transmission shaft are both flexible shafts.

[0012] According to some embodiments of the present invention, the first driving mechanism further includes a fixed bracket extending in the left-right direction, two ends of the fixed bracket are respectively connected to the first slide rails on both sides, and the first driving motor is disposed on the fixed bracket.

[0013] According to some embodiments of the present invention, the seat adjustment assembly also includes a backrest frame and a second driving mechanism, the second driving mechanism includes a second driving motor, a linkage shaft and an angle adjuster, two angle adjusters are provided, the left and right sides of the lower end of the backrest frame are connected to the rear end of the second frame through the angle adjuster, and the output shaft of the second driving motor is connected to the angle adjusters on both sides through the linkage shaft.

[0014] A second aspect of the present invention provides a seat adjustment assembly.

[0015] The vehicle according to the second embodiment of the present invention includes: a seat frame assembly, including a second frame and a connecting rod mechanism, the connecting rod mechanism includes a third connecting rod and a fourth connecting rod, the first end of the third connecting rod is rotatably connected to the front end of the second frame, and the second end of the third connecting rod is rotatably connected to the first end of the fourth connecting rod; a sliding assembly, including a first slide rail, a second slide rail, a first connecting plate and a second connecting plate, the first slide rail is slidably arranged on the second slide rail along the front-back direction, the first connecting plate is arranged on the first slide rail and is formed with a slide groove extending along the front-back direction, the second connecting plate is arranged on the second slide rail, the rear end of the second frame is rotatably connected to the second connecting plate, the second end of the fourth connecting rod is provided with a second connecting member, the second connecting member is slidably arranged in the slide groove in the front-back direction and is rotatable relative to the first connecting plate, the fourth connecting rod is rotatably connected to the second connecting plate, the slide groove includes at least a second adjustment section, and the front and rear ends of the second adjustment section have different heights; a first driving mechanism is used to drive the first slide rail to slide along the second slide rail.

[0016] According to the vehicle of the second aspect of the present invention, the lifting or lowering rate of the second connecting member can be flexibly controlled by adjusting the slope of the second adjustment section, thereby improving the design flexibility of the lifting or lowering rate of the front end of the second frame. In addition, the rotational connection between the fourth connecting rod and the second connecting plate can keep the rotation fulcrum of the fourth connecting rod fixed relative to the second connecting plate, thereby improving the reliability of the transmission of the connecting rod mechanism and improving the stability of controlling the lifting or lowering of the front end of the second frame.

[0017] A third aspect of the present invention provides a seat.

[0018] A seat according to an embodiment of the third aspect of the present invention includes: the above-mentioned seat adjustment assembly.

[0019] According to the seat embodiment of the third aspect of the present invention, the lifting or lowering rate of the first connecting member can be flexibly controlled by adjusting the slope of the first adjustment section, thereby improving the design flexibility of the lifting or lowering rate of the rear end of the first frame. In addition, the rotational connection between the second connecting rod and the second connecting plate can keep the second connecting rod fixed relative to the rotation fulcrum of the second connecting plate, thereby improving the reliability of the transmission of the connecting rod mechanism and improving the stability of controlling the lifting or lowering of the rear end of the first frame.

[0020] A fourth aspect of the present invention provides a vehicle.

[0021] A vehicle according to an embodiment of the fourth aspect of the present invention includes: the above-mentioned seat.

[0022] According to the vehicle of the fourth aspect of the present invention, the lifting or lowering rate of the first connecting member can be flexibly controlled by adjusting the slope of the first adjustment section, thereby improving the design flexibility of the lifting or lowering rate of the rear end of the first frame. In addition, the rotational connection between the second connecting rod and the second connecting plate can keep the second connecting rod fixed relative to the rotation fulcrum of the second connecting plate, thereby improving the reliability of the transmission of the connecting rod mechanism and improving the stability of controlling the lifting or lowering of the rear end of the first frame.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of a seat adjustment assembly according to an embodiment of the present invention;

[0025] Figure 2 is a schematic diagram of a seat frame assembly, a sliding assembly and a first driving mechanism of a seat adjustment assembly according to an embodiment of the present invention;

[0026] Figure 3 yes Figure 2 Schematic diagram of another angle of the structure;

[0027] Figure 4 yes Figure 2 Middle structure and Figure 3 A schematic diagram of another angle with a different angle;

[0028] Figure 5 yes Figure 2 A top view of the structure with the AA section marked;

[0029] Figure 6 yes Figure 5 Sectional view along AA;

[0030] Figure 7 yes Figure 2 A top view of the structure with the BB section marked;

[0031] Figure 8 yes Figure 7 Sectional view along BB;

[0032] Fig. 9 yes Figure 2 Middle structure and Figure 3 as well as Figure 4 A schematic diagram of another angle with a different angle;

[0033] Fig.10 is a schematic diagram of a first slide rail, a second slide rail and a first driving mechanism of a seat adjustment assembly according to an embodiment of the present invention;

[0034] Fig.11 is a cross-sectional view of a first slide rail, a second slide rail and a first drive mechanism of a seat adjustment assembly according to an embodiment of the present invention;

[0035] Fig.12 is a schematic diagram of a backrest frame and a second driving mechanism of a seat adjustment assembly according to an embodiment of the present invention;

[0036] Fig.13 yes Fig.12 Schematic diagram of another angle of the structure;

[0037] Fig.14 yes Fig.12 A partial enlarged view of

[0038] Fig.15 yes Fig.13 A partial enlarged view of

[0039] Fig.16 is a schematic diagram of a retaining spring of a seat adjustment assembly according to an embodiment of the present invention;

[0040] Fig.17 Schematic diagram of the cooperation between the step bolt and the bushing of the seat adjustment assembly according to an embodiment of the present invention.

[0041] Reference numerals:

[0042] 100. Seat adjustment assembly;

[0043] 1. Seat frame assembly;

[0044] 11. first frame; 111. support plate; 112. first fixing plate; 113. seat plate; 114. seat frame suspension; 115. connecting pipe; 116. second fixing plate;

[0045] 12. second frame; 121. second frame side plate; 122. rear transverse tube; 123. third fixing plate; 124. front transverse tube;

[0046] 131, first connecting rod; 132, second connecting rod; 1321, first rod body; 1322, second rod body; 133, third connecting rod; 134, fourth connecting rod; 1341, third rod body; 1342, fourth rod body; 135, first connecting member; 136, second connecting member; 137, step bolt; 138, bushing;

[0047] 2. Sliding assembly; 21. First slide rail; 22. Second slide rail; 23. First connecting plate; 231. Sliding groove; 2311. First adjustment section; 2312. Second adjustment section; 2313. First horizontal section; 2314. Second horizontal section; 24. Second connecting plate;

[0048] 3. First drive mechanism; 31. First drive motor; 32. Gear box; 33. Worm; 34. First transmission shaft; 35. Second transmission shaft; 36. Fixed bracket; 37. Mounting bracket;

[0049] 4. Backrest frame; 41. Backrest side panel; 42. Upper cross pipe; 43. Headrest guide tube; 44. Backrest suspension; 45. Reinforcement plate; 46. Limiting piece;

[0050] 5. Second driving mechanism; 51. Second driving motor; 52. Angle adjuster; 53. Linkage shaft; 54. Lower connecting plate; 55. Circlip. DETAILED DESCRIPTION

[0051] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0052] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific processes and examples of materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0053] The seat adjustment assembly 100 according to the first embodiment of the present invention will be described below with reference to the accompanying drawings.

[0054] like Figures 1 to 4 As shown, the seat adjustment assembly 100 according to the first embodiment of the present invention includes: a seat frame assembly 1, a sliding assembly 2 and a first driving mechanism 3, the seat frame assembly 1 includes a first frame 11, a second frame 12 and a connecting rod mechanism, the front end of the first frame 11 is rotatably connected to the second frame 12, the connecting rod mechanism includes a first connecting rod 131 and a second connecting rod 132, the first end of the first connecting rod 131 is rotatably connected to the rear end of the first frame 11, and the second end of the first connecting rod 131 is rotatably connected to the first end of the second connecting rod 132, the sliding assembly 2 includes a first slide rail 21, a second slide rail 22, a first connecting plate 23 and a second connecting plate 24, the first slide rail 21 can be moved along the front and rear directions The second connecting rod 132 is slidably disposed on the second slide rail 22, the first connecting plate 23 is disposed on the first slide rail 21 and is formed with a slide groove 231 extending in the front-to-back direction, the second connecting plate 24 is disposed on the second slide rail 22 and is connected to the second frame 12, the second end of the second connecting rod 132 is provided with a first connecting member 135, the first connecting member 135 is slidably disposed in the slide groove 231 in the front-to-back direction and is rotatable relative to the first connecting plate 23, the second connecting rod 132 is rotatably connected to the second connecting plate 24, the slide groove 231 at least includes a first adjustment section 2311, the front and rear ends of the first adjustment section 2311 have different heights, and the first driving mechanism 3 is used to drive the first slide rail 21 to slide along the second slide rail 22.

[0055] In this embodiment, the first frame 11 is an inner frame, and the second frame 12 is an outer frame. The sliding assembly 2 is connected to the first frame 11 through the first connecting rod 131 and the second connecting rod 132. The second end of the second connecting rod 132 is rotatably connected to the first connecting plate 23 through the first connecting member 135. The rotation connection point between the second connecting rod 132 and the second connecting plate 24 is preferably the middle position between the first end and the second end of the second connecting rod 132, or it can be other positions between the first end and the second end of the second connecting rod 132, so that the second connecting rod 132 constitutes a lever structure with a rotation fulcrum located at the connection position between the second connecting rod 132 and the second connecting plate 24, so that the first end of the second connecting rod 132 can be driven to move, and then the first end of the second connecting rod 132 can be driven to move to drive the first connecting rod 131 to move to achieve the lifting or lowering of the rear end of the first frame 11.

[0056] Furthermore, the first connecting member 135 is slidably disposed in the slide groove 231 along the front-back direction. The first driving mechanism 3 drives the first slide rail 21 to slide forward and backward relative to the second slide rail 22, and the position of the first connecting member 135 in the slide groove 231 can be adjusted. Since the slide groove 231 has a first adjustment section 2311 with different heights at the front and rear ends, through the cooperation of the first adjustment section 2311 and the first connecting member 135, only the first driving mechanism 3 is used to control the first slide rail 21 to slide forward and backward along the second slide rail 22, and the rear end of the first frame 11 can be controlled to be lifted or lowered through the connecting rod mechanism. Among them, the lifting or lowering rate of the first connecting member 135 can be flexibly controlled by adjusting the slope of the first adjustment section 2311, so that the design flexibility of the lifting or lowering rate of the rear end of the first frame 11 can be improved. In addition, the second connecting rod 132 can be connected to the second connecting plate 24 by rotation, so that the second connecting rod 132 can be kept fixed relative to the rotation fulcrum of the second connecting plate 24, so that the reliability of the transmission of the connecting rod mechanism can be improved, so as to improve the stability of controlling the lifting or lowering of the rear end of the first frame 11.

[0057] Among them, the rotation axes of the first connecting rod 131 relative to the first frame 11 and the second connecting rod 132 are respectively the first rotation axis and the second rotation axis, and the rotation axes of the second connecting rod 132 relative to the first connecting plate 23 and the second connecting plate 24 are respectively the third rotation axis and the fourth rotation axis. The first rotation axis, the second rotation axis, the third rotation axis and the fourth rotation axis are parallel and extend in the left and right directions.

[0058] To facilitate understanding of the adjustment of the rear end of the first frame 11 by the seat adjustment assembly 100, an example is given in which the rear end of the first adjustment section 2311 is lower than the front end of the first adjustment section 2311, that is, the first adjustment section 2311 is higher at the front and lower at the back. When the first driving mechanism 3 drives the first slide rail 21 to slide forward relative to the second slide rail 22, the first connecting plate 23 slides forward relative to the first connecting member 135, so that the first connecting member 135 slides backward relative to the slide slot 231. When the first connecting member 135 enters the first adjustment section 2311, since the rear end of the first adjustment section 2311 is lower than the front end of the first adjustment section 2311, the first adjustment section 2311 tends to extend downward from the front to the back. When the first connecting member 135 slides backward relative to the first adjustment section 2311, it is pressed down, that is, the second end of the second connecting rod 132 is pressed down to lift the first end of the second connecting rod 132, so that the rear end of the first frame 11 can be driven by the first connecting rod 131 to rotate and lift around the rotation connection point between the front end of the first frame 11 and the second frame 12. For example, when the backrest of the seat is tilted backward at a large angle, the drop between the lower end of the backrest and the rear end of the seat cushion can be reduced by lifting the rear end of the first frame 11 to better support the human body and improve the riding comfort. When the rear end of the first frame 11 needs to be lowered, the first driving mechanism 3 can be used to drive the first slide rail 21 to slide backward relative to the second slide rail 22, and the first connecting member 135 can slide forward relative to the first adjusting section 2311, so that the first connecting member 135 can be gradually raised through the first adjusting section 2311, and the height of the second end of the second connecting rod 132 can be gradually reduced, so that the rear end of the first frame 11 can be driven to be lowered through the first connecting rod 131.

[0059] It should be noted that this is only an example of one form of the first adjustment section 2311, and it is not a limitation on the form of the first adjustment section 2311. For example, the first adjustment section 2311 can also be formed in a form that is low in the front and high in the back. When it is necessary to lift the rear end of the first frame 11, the first drive mechanism 3 drives the first slide rail 21 to slide backward, and the first connecting member 135 slides forward relative to the first adjustment section 2311 and is pressed down to lift the rear end of the first frame 11; conversely, when it is necessary to lower the rear end of the first frame 11, the first drive mechanism 3 drives the first slide rail 21 to slide forward, and the first connecting member 135 slides backward relative to the first adjustment section 2311 and is lifted to lower the rear end of the first frame 11.

[0060] According to the seat adjustment assembly 100 of the first aspect of the present invention, the lifting or lowering rate of the first connecting member 135 can be flexibly controlled by adjusting the slope of the first adjustment section 2311, thereby improving the design flexibility of the lifting or lowering rate of the rear end of the first frame 11. In addition, the second connecting rod 132 can be kept fixed relative to the rotation fulcrum of the second connecting plate 24 through the rotational connection between the second connecting rod 132 and the second connecting plate 24, thereby improving the reliability of the transmission of the connecting rod mechanism and improving the stability of controlling the lifting or lowering of the rear end of the first frame 11.

[0061] In some embodiments, the first slide rail 21 and the second slide rail 22 may be arranged in the up-down direction, such as the first slide rail 21 is arranged on the upper side of the second slide rail 22, or the first slide rail 21 is arranged on the lower side of the second slide rail 22. In other embodiments, the first slide rail 21 and the second slide rail 22 may be arranged in the left-right direction, such as the first slide rail 21 is arranged on the left side of the second slide rail 22, or the first slide rail 21 is arranged on the right side of the second slide rail 22, etc. It should be noted that this is only a limitation on the layout of some of the first slide rails 21 and the second slide rails 22, and it is sufficient to ensure that the first slide rail 21 can slide in the front-to-back direction relative to the second slide rail 22. No specific limitation is made on the layout of the first slide rail 21 and the second slide rail 22.

[0062] According to some embodiments of the present invention, the linkage mechanism further includes a third link 133 and a fourth link 134, the first end of the third link 133 is rotatably connected to the front end of the second frame 12, the second end of the third link 133 is rotatably connected to the first end of the fourth link 134, the rear end of the second frame 12 is rotatably connected to the second connecting plate 24, the second end of the fourth link 134 is provided with a second connecting member 136, the second connecting member 136 is slidably arranged in the slide groove 231 along the front and rear directions and is rotatable relative to the first connecting plate 23, the fourth link 134 is connected to the first connecting member 136, and the second connecting member 136 is slidably arranged in the slide groove 231 along the front and rear directions and is rotatable relative to the first connecting plate 23. The two connecting plates 24 are rotatably connected, and the slide groove 231 also includes a second adjustment section 2312, a first horizontal section 2313 and a second horizontal section 2314. The first adjustment section 2311 is connected to the first horizontal section 2313, and the front and rear ends of the second adjustment section 2312 have different heights. The second adjustment section 2312 is connected to the second horizontal section 2314, and the first connecting member 135 can slide between the first adjustment section 2311 and the first horizontal section 2313, and the second connecting member 136 can slide between the second adjustment section 2312 and the second horizontal section 2314.

[0063] That is to say, while the sliding assembly 2 is connected to the first frame 11 through the first connecting rod 131 and the second connecting rod 132, it is connected to the second frame 12 through the third connecting rod 133, the fourth connecting rod 134 and the second connecting plate 24. The second end of the fourth connecting rod 134 is rotatably connected to the first connecting plate 23 through the second connecting member 136. The rotational connection point between the fourth connecting rod 134 and the second connecting plate 24 is preferably a middle position between the first end and the second end of the fourth connecting rod 134, or it can be another position between the first end and the second end of the fourth connecting rod 134, so that the fourth connecting rod 134 constitutes a lever structure with a rotation fulcrum located at the connection position between the fourth connecting rod 134 and the second connecting plate 24, so that the first end of the fourth connecting rod 134 can be driven to move, and then the third connecting rod 133 can be driven to move by the movement of the first end of the fourth connecting rod 134 to achieve the lifting or lowering of the front end of the second frame 12.

[0064] Furthermore, the first connecting member 135 is slidably disposed in the slide groove 231 along the front-to-back direction, and the second connecting member 136 is slidably disposed in the slide groove 231 along the front-to-back direction. The first driving mechanism 3 drives the first slide rail 21 to slide forward and backward relative to the second slide rail 22, so that the positions of the first connecting member 135 and the second connecting member 136 in the slide groove 231 can be adjusted. Since the slide groove 231 has a first adjustment section 2311 and a second adjustment section 2312 with different heights at the front and rear ends, and a first horizontal section 2313 and a second horizontal section 2312 extending in the horizontal direction, 14. Therefore, by the cooperation between the first adjustment section 2311 and the first connecting member 135 and the cooperation between the second adjustment section 2312 and the second connecting member 136, it is only necessary to control the first slide rail 21 to slide forward and backward along the second slide rail 22 through the first driving mechanism 3, and the rear end of the first frame 11 and the front end of the second frame 12 can be controlled to be lifted or lowered through the connecting rod mechanism, which can reduce the number of parts of the seat adjustment assembly 100, so as to better simplify the structure of the seat adjustment assembly 100, thereby reducing the production cost and energy consumption of the seat adjustment assembly 100.

[0065] In addition, by setting the first horizontal section 2313 and the second horizontal section 2314, when adjusting the rear end of the first frame 11 to be lifted or lowered, the second connecting member 136 can slide back and forth in the second horizontal section 2314 to keep the height of the front end of the second frame 12 unchanged; when adjusting the front end of the second frame 12 to be lifted or lowered, the first connecting member 135 can slide back and forth in the first horizontal section 2313 to keep the height of the rear end of the first frame 11 unchanged, so as to facilitate the independent adjustment of the lifting or lowering of the rear end of the first frame 11 or the front end of the second frame 12.

[0066] At the same time, the lifting or lowering rate of the first connecting member 135 and the second connecting member 136 can be flexibly controlled by adjusting the slope of the first adjustment section 2311 and the second adjustment section 2312, so as to improve the design flexibility of the angle adjustment rate of the rear end of the first frame 11 and the front end of the second frame 12. In addition, the second connecting rod 132 can be kept fixed relative to the rotation fulcrum of the second connecting plate 24 through the rotation connection between the second connecting rod 132 and the second connecting plate 24, and the fourth connecting rod 134 can be kept fixed relative to the rotation fulcrum of the second connecting plate 24 through the rotation connection between the fourth connecting rod 134 and the second connecting plate 24, so as to improve the reliability of the transmission of the connecting rod mechanism, so as to improve the stability of controlling the lifting or lowering of the rear end of the first frame 11 and the front end of the second frame 12.

[0067] Among them, the rotation axes of the first connecting rod 131 relative to the first frame 11 and the second connecting rod 132 are the first rotation axis and the second rotation axis respectively, the rotation axes of the second connecting rod 132 relative to the first connecting plate 23 and the second connecting plate 24 are the third rotation axis and the fourth rotation axis respectively, the rotation axes of the third connecting rod 133 relative to the second frame 12 and the fourth connecting rod 134 are the fifth rotation axis and the sixth rotation axis respectively, and the rotation axes of the fourth connecting rod 134 relative to the first connecting plate 23 and the second connecting plate 24 are the seventh rotation axis and the eighth rotation axis respectively. The first rotation axis, the second rotation axis, the third rotation axis, the fourth rotation axis, the fifth rotation axis, the sixth rotation axis, the seventh rotation axis and the eighth rotation axis are parallel and extend in the left and right directions.

[0068] According to some embodiments of the present invention, the first adjustment section 2311 is located at the rear side of the first horizontal section 2313, the rear end of the first adjustment section 2311 is lower than the front end of the first adjustment section 2311, the second adjustment section 2312 is located at the front side of the second horizontal section 2314, the rear end of the second adjustment section 2312 is higher than the front end of the second adjustment section 2312, the first horizontal section 2313 and the second horizontal section 2314 are at the same height, and the rear end of the second horizontal section 2314 is connected to the front end of the first horizontal section 2313. In other words, the first adjustment section 2311, the second adjustment section 2312, the first horizontal section 2313 and the second horizontal section 2314 are connected in sequence, thereby reducing the difficulty of processing and forming the slide 231.

[0069] According to some embodiments of the present invention, the seat adjustment assembly 100 has at least a first state, a second state and a third state; wherein: in the first state, the first connecting member 135 is located in the first adjustment section 2311, and the second connecting member 136 is located in the second horizontal section 2314. Wherein, since the first connecting member 135 can drive the rear end of the first frame 11 to be lifted when it is located in the first adjustment section 2311, and the second connecting member 136 is located in the second horizontal section 2314, the height of the front end of the second frame 12 can be kept fixed, that is, in the first state, the rear end of the first frame 11 is lifted, and the height of the front end of the second frame 12 remains unchanged, at which time the seat can be in a flat lying mode, that is, the backrest is flat at the maximum angle, and the rear end of the first frame 11 is lifted to reduce the gap between the lower end of the backrest and the rear end of the seat cushion, so as to avoid discomfort caused by the occupant's waist being suspended in the air.

[0070] In the second state, the first connecting member 135 is located in the first horizontal section 2313, and the second connecting member 136 is located in the second adjustment section 2312. Since the first connecting member 135 is located in the first horizontal section 2313, the height of the rear end of the first frame 11 can remain fixed, and the second connecting member 136 can drive the front end of the second frame 12 to lift when it is located in the second adjustment section 2312, that is, in the second state, the height of the rear end of the first frame 11 remains unchanged and the front end of the second frame 12 is lifted. At this time, the seat can be in zero gravity mode, and the user's legs can be lifted by lifting the front end of the second frame 12 to provide a more comfortable riding experience.

[0071] In the third state, the first connecting member 135 is located in the first horizontal section 2313, and the second connecting member 136 is located in the second horizontal section 2314. That is, at this time, the height of the rear end of the first frame 11 remains unchanged as at a default height, and the height of the front end of the second frame 12 remains unchanged as at a default height, and at this time, the seat can be in a normal sitting posture, that is, an initial posture.

[0072] Specifically, in the initial position, the first connecting member 135 is located in the first horizontal section 2313, and the second connecting member 136 is located in the second horizontal section. When the first driving mechanism 3 drives the first slide rail 21 to slide forward, the first connecting member 135 and the second connecting member 136 slide backward relative to the slide slot 231. After the first connecting member 135 enters the first adjustment section 2311, the first connecting member 135 is pressed down when sliding backward relative to the first adjustment section 2311, and the second end of the second connecting rod 132 is pressed down to lift the first end of the second connecting rod 132, so that the rear end of the first frame 11 can be driven by the first connecting rod 131 to rotate and lift around the rotation connection point between the front end of the first frame 11 and the second frame 12. In this process, the second connecting member 136 can keep sliding in the second horizontal section 2314, that is, the height of the second connecting member 136 remains unchanged, so that the third connecting rod 133 and the fourth connecting rod 134 can be ensured to remain stationary relative to the second frame 12, so that the posture of the second frame 12 can be kept unchanged in the process of controlling the rear end of the first frame 11 to be lifted or lowered. When the rear end of the first frame 11 needs to be lowered, the first slide rail 21 can be driven to slide backward by the first driving mechanism 3, and the first connecting member 135 and the second connecting member 136 can slide forward relative to the slide groove 231. The first connecting member 135 is gradually lifted during the process of sliding forward relative to the first adjustment section 2311, and the height of the second end of the second connecting rod 132 is gradually reduced, so that the rear end of the first frame 11 can be lowered by the first connecting rod 131.

[0073] When the first driving mechanism 3 drives the first slide rail 21 to slide backward, the first connecting member 135 and the second connecting member 136 slide forward relative to the slide slot 231. When the second connecting member 136 enters the second adjustment section 2312, the second connecting member 136 is pressed down when sliding forward relative to the second adjustment section 312, that is, the second end of the fourth connecting rod 134 is pressed down to lift the first end of the fourth connecting rod 134, so that the front end of the second frame 12 can be driven by the third connecting rod 133 to rotate and lift around the rotation connection point between the rear end of the second frame 12 and the second connecting plate 24. In this process, the first connecting member 135 can keep sliding in the first horizontal section 2313, that is, the height of the first connecting member 135 remains unchanged, so that the first connecting rod 131 and the second connecting rod 132 can be ensured to remain stationary relative to the first frame 11, so that the posture of the first frame 11 relative to the second frame 12 can be kept unchanged in the process of controlling the front end of the second frame 12 to be lifted or lowered. When the front end of the second frame 12 needs to be lowered, the first slide rail 21 can be driven to slide forward by the first driving mechanism 3, and the first connecting member 135 and the second connecting member 136 slide backward relative to the slide groove 231. The second connecting member 136 is gradually lifted when sliding backward along the second adjustment section 2312, and the height of the second end of the fourth connecting rod 134 is gradually reduced, so that the front end of the second frame 12 can be lowered by the third connecting rod 133.

[0074] It should be noted that only one example of the slide groove 231 is provided here to facilitate understanding of the cooperation between the slide groove 231 and the connecting rod mechanism. For example, in another embodiment, the first horizontal section 2313 is located at the rear side of the first adjustment section 2311, the rear end of the first adjustment section 2311 is higher than the front end of the first adjustment section 2311, the second horizontal section 2314 is located at the front side of the second adjustment section 2312, the front end of the second adjustment section 2312 is higher than the rear end of the second adjustment section 2312, in this embodiment, when the first slide rail 21 slides forward relative to the second slide rail 22, the front end of the second frame 12 is lifted up by the third connecting rod 133 and the fourth connecting rod 134; when the first slide rail 21 slides backward relative to the second slide rail 22, the rear end of the first frame 11 is lifted up by the first connecting rod 131 and the second connecting rod 132, which will not be described in detail here.

[0075] According to some embodiments of the present invention, Fig.10 and Fig.11 As shown, the sliding assembly 2 and the connecting rod mechanism are both provided with two arranged at intervals along the left-right direction, the first driving mechanism 3 includes a first driving motor 31, and the first slide rails 21 of the sliding assemblies 2 on both sides are drivingly connected to the output shaft of the first driving motor 31, and the first driving motor 31 is used to drive the first slide rails 21 on both sides to slide. In other words, the sliding assembly 2 on the left side is connected to the first frame 11 and the second frame 12 through the connecting rod mechanism on the left side, and the sliding assembly 2 on the right side is connected to the first frame 11 and the second frame 12 through the connecting rod mechanism on the right side, and the first drive motor 31 can simultaneously drive the first slide rails 21 on both sides to slide along the second slide rails 22 in the front-back direction.

[0076] Thus, only one first drive motor 31 is needed to simultaneously control the sliding of the first slide rails 21 on both sides, and to achieve the lifting and lowering of the rear end of the first frame 11 and the front end of the second frame 12, which can effectively save the number of first drive motors 31 to reduce the cost of the seat adjustment assembly 100. In addition, through the two sets of sliding assemblies 2 and the connecting rod mechanism on the left and right sides, the transmission stability between the sliding assembly 2 and the seat frame assembly 1 can be improved, so as to improve the stability of controlling the lifting or lowering of the rear end of the first frame 11 and the front end of the second frame 12.

[0077] According to some embodiments of the present invention, a worm wheel is provided on the first slide rail 21, a worm 33 is provided on the second slide rail 22 for transmission connection with the worm wheel, the first driving mechanism 3 further comprises a first transmission shaft 34 and a second transmission shaft 35, and the first driving motor 31 is rotationally connected to the worm wheels on both sides through the first transmission shaft 34 and the second transmission shaft 35, and is used to drive the worm wheels to rotate. In other words, the first slide rail 21 and the second slide rail 22 are transmission-connected through the worm wheel and the worm 33 structure, and the first driving motor 31 can transmit the driving force to the worm wheels on both sides through the first transmission shaft 34 and the second transmission shaft 35, respectively, and drive the worm wheels to rotate on the worm 33 to adjust the position of the worm wheel on the worm 33, so that the first slide rail 21 can be driven by the worm wheel to slide forward and backward relative to the second slide rail 22. Among them, through the cooperation of the worm wheel and the worm 33, the stability of the first driving mechanism 3 driving the first slide rail 21 to slide can be improved. At the same time, self-locking can be achieved between the worm wheel and the worm 33, so that the worm wheel can maintain its position on the worm 33 when it does not receive the driving force of the first driving motor 31, thereby ensuring the stability of the seat frame assembly 1 in various modes, such as when the front end of the second frame 12 is lifted or the rear end of the first frame 11 is lifted.

[0078] In a specific example, the worm gear is integrated in the gear box 32, and the gear box 32 can convert the driving force transmitted by the first transmission shaft 34 and the second transmission shaft 35 into the rotation of the worm gear on the worm 33. The gear box 32 is fixed on the first slide rail 21, and the worm 33 is a lead screw, which is rotatably arranged in the gear box 32, and the rotation axis of the lead screw extends in the front-to-back direction.

[0079] According to some embodiments of the present invention, the first drive motor 31 is a dual-output shaft motor, and the first transmission shaft 34 and the second transmission shaft 35 are respectively connected to the two output shafts of the dual-output shaft motor. As a result, the structure of the first drive mechanism 3 can be simplified, and the synchronization of the first drive motor 31 driving the first slide rails 21 on both sides to slide can be improved. Specifically, the output shaft of the first drive motor 31 extends in the left-right direction, and the first transmission shaft 34 and the second transmission shaft 35 are respectively located on the left and right sides of the first drive motor 31. After the first transmission shaft 34 and the second transmission shaft 35 are connected to the two output shafts of the first drive motor 31, the driving force can be directly output to the worm gears on both sides, without the need to set a steering structure between the first drive motor 31 and the first transmission shaft 34 and the second transmission shaft 35, etc., so as to simplify the structure of the first drive mechanism 3.

[0080] According to some embodiments of the present invention, both the first transmission shaft 34 and the second transmission shaft 35 are flexible shafts. Therefore, when there is a difference in the transmission of the worm wheels and the worm 33 on both sides, the first transmission shaft 34 and the second transmission shaft 35 can stably output driving force to the worm wheels on both sides through deformation, which can better avoid the first transmission shaft 34 and the second transmission shaft 35 from being stuck due to the rigid connection, so as to improve the reliability of the first drive mechanism 3.

[0081] According to some embodiments of the present invention, the first drive mechanism 3 further includes a fixed bracket 36 extending in the left-right direction, and the two ends of the fixed bracket 36 are respectively connected to the first slide rails 21 on both sides, and the first drive motor 31 is arranged on the fixed bracket 36. In other words, the first slide rails 21 on both sides can be connected by the fixed bracket 36, so that the first slide rails 21 on both sides can be better guaranteed to slide forward and backward synchronously, and the positional relationship between the sliding components 2 on both sides can be better maintained, so as to improve the overall structural stability of the seat adjustment assembly 100. In addition, the fixed bracket 36 can also provide an installation position for the first drive motor 31, so that the fixed bracket 36 can be reused, so that the installation structure separately set for fixing the first drive motor 31 can be omitted, so as to reduce the cost of the seat adjustment assembly 100.

[0082] In some embodiments, Figure 5-8 As shown, the second connecting rod 132 includes a first rod body 1321 and a second rod body 1322 arranged at an angle, the rotational connection position of the first connecting rod 131 and the second connecting plate 24 is located at the connection position of the first rod body 1321 and the second rod body 1322, and in the direction from the end of the first rod body 1321 away from the second rod body 1322 to the end where the first rod body 1321 and the second rod body 1322 are connected, the second rod body 1322 extends obliquely toward the direction close to the first frame 11; the fourth connecting rod 134 includes a third rod body 1341 and a fourth rod body 1342 arranged at an angle, the rotational connection position of the third connecting rod 133 and the second connecting plate 24 is located at the connection position of the third rod body 1341 and the fourth rod body 1342, and in the direction from the end of the third rod body 1341 away from the fourth rod body 1342 to the end where the third rod body 1341 and the fourth rod body 1342 are connected, the fourth rod body 1342 extends obliquely toward the direction close to the second frame 12. Therefore, the space occupied by the second rod body 1322 and the fourth rod body 1342 in the up and down directions can be reduced well, and the overall structure of the connecting rod mechanism is compact and the layout is reasonable.

[0083] Specifically, the first connecting member 135 is provided at one end of the first rod body 1321 away from the second rod body 1322, and one end of the second rod body 1322 away from the first rod body 1321 is rotatably connected to the second end of the first connecting rod 131. The second connecting member 136 is provided at one end of the third rod body 1341 away from the fourth rod body 1342, and one end of the fourth rod body 1342 away from the third rod body 1341 is rotatably connected to the second end of the third connecting rod 133. Figure 8In the structure shown in , the angle between the second rod body 1322 and the first rod body 1321 in the counterclockwise direction is an obtuse angle, and the angle between the fourth rod body 1342 and the third rod body 1341 in the counterclockwise direction is an obtuse angle. When the first connecting member 135 is located in the first horizontal section 2313 and the second connecting member 136 is located in the second horizontal section 2314, the connection position between the first rod body 1321 and the first connecting member 135 and the rotational connection position between the second rod body 1322 and the first connecting rod 131 are both located above the rotational connection position between the second connecting rod 132 and the second connecting plate 24, and the connection position between the third rod body 1341 and the second connecting member 136 and the rotational connection position between the fourth rod body 1342 and the third connecting rod 133 are both located above the rotational connection position between the fourth connecting rod 134 and the second connecting plate 24, thereby avoiding occupying the space below the connection position between the second connecting rod 132 and the second connecting plate 24.

[0084] According to some embodiments of the present invention, Figure 12-Figure 15 As shown, the seat adjustment assembly 100 also includes a backrest frame 4 and a second drive mechanism 5, the second drive mechanism 5 includes a second drive motor 51, a linkage shaft 53 and a recliner 52, two recliners 52 are provided, the left and right sides of the lower end of the backrest frame 4 are connected to the rear end of the second frame 12 through the recliners 52, and the output shaft of the second drive motor 51 is connected to the recliners 52 on both sides through the linkage shaft 53. Therefore, the second drive motor 51 can drive the linkage shaft 53 to rotate to drive the recliners 52 on both sides to move, and adjust the angle between the backrest frame 4 and the seat frame assembly 1 to meet the different sitting posture requirements of the occupants.

[0085] In some embodiments, the seat adjustment assembly 100 further includes a third driving mechanism (not shown), the sliding assembly 2 is mounted on the third driving mechanism, and the third driving mechanism can drive the sliding assembly 2 to move forward or backward as a whole, thereby driving the seat frame assembly 1 and the backrest frame 4 to translate or rotate forward and backward through the sliding assembly 2. In this way, the adjustment flexibility of the seat can be improved to better meet the different usage requirements of users.

[0086] The seat adjustment assembly 100 according to the second embodiment of the present invention will be described below with reference to the accompanying drawings.

[0087] According to the second aspect of the present invention, the seat adjustment assembly 100 includes: a seat frame assembly 1, a sliding assembly 2 and a first driving mechanism 3, the seat frame assembly 1 includes a second frame 12 and a connecting rod mechanism, the connecting rod mechanism includes a third connecting rod 133 and a fourth connecting rod 134, the first end of the third connecting rod 133 is rotatably connected to the front end of the second frame 12, the second end of the third connecting rod 133 is rotatably connected to the first end of the fourth connecting rod 134, the sliding assembly 2 includes a first slide rail 21, a second slide rail 22, a first connecting plate 23 and a second connecting plate 24, the first slide rail 21 is slidably arranged on the second slide rail 22 along the front and rear directions, and the first connecting plate 23 is arranged A slide groove 231 extending in the front-to-back direction is formed on the first slide rail 21, the second connecting plate 24 is arranged on the second slide rail 22, the rear end of the second frame 12 is rotatably connected to the second connecting plate 24, the second end of the fourth connecting rod 134 is provided with a second connecting member 136, the second connecting member 136 is slidably arranged in the slide groove 231 in the front-to-back direction and is rotatable relative to the first connecting plate 23, the fourth connecting rod 134 is rotatably connected to the second connecting plate 24, the slide groove 231 includes a second adjustment section 2312, the front and rear ends of the second adjustment section 2312 have different heights, and the first driving mechanism 3 is used to drive the first slide rail 21 to slide along the second slide rail 22.

[0088] In this embodiment, the first frame 11 is an inner frame, and the second frame 12 is an outer frame. The sliding assembly 2 is connected to the second frame 12 through the third connecting rod 133, the fourth connecting rod 134 and the second connecting plate 24. The second end of the fourth connecting rod 134 is rotatably connected to the first connecting plate 23 through the second connecting member 136. The rotation connection point between the fourth connecting rod 134 and the second connecting plate 24 is preferably the middle position between the first end and the second end of the fourth connecting rod 134, or it can be other positions between the first end and the second end of the fourth connecting rod 134, so that the fourth connecting rod 134 constitutes a lever structure with a rotation fulcrum located at the connection position between the fourth connecting rod 134 and the second connecting plate 24, so that the first end of the fourth connecting rod 134 can be driven to move by driving the second end of the fourth connecting rod 134 to move, and then the third connecting rod 133 can be driven to move by the first end of the fourth connecting rod 134 to achieve the lifting or lowering of the front end of the second frame 12.

[0089] In addition, the rear end of the second frame 12 is rotatably connected to the second connecting plate 24, and the second connecting member 136 is slidably arranged in the slide groove 231 along the front-to-back direction. The first driving mechanism 3 drives the first slide rail 21 to slide forward and backward relative to the second slide rail 22, and the position of the second connecting member 136 in the slide groove 231 can be adjusted. Since the slide groove 231 has a second adjustment section 2312 with different heights at the front and rear ends, through the cooperation of the second adjustment section 2312 and the second connecting member 136, it is only necessary to control the first slide rail 21 to slide forward and backward along the second slide rail 22 through the first driving mechanism 3, and the front end of the second frame 12 can be controlled to be lifted or lowered through the connecting rod mechanism. Among them, the lifting or lowering rate of the second connecting member 136 can be flexibly controlled by adjusting the slope of the second adjustment section 2312, thereby improving the design flexibility of the lifting or lowering rate of the front end of the second frame 12. In addition, the fourth connecting rod 134 can be kept fixed relative to the rotation fulcrum of the second connecting plate 24 through the rotational connection between the fourth connecting rod 134 and the second connecting plate 24, thereby improving the reliability of the transmission of the connecting rod mechanism and improving the stability of controlling the lifting or lowering of the front end of the second frame 12.

[0090] Among them, the rotation axes of the third connecting rod 133 relative to the second frame 12 and the fourth connecting rod 134 are the fifth rotation axis and the sixth rotation axis respectively, and the rotation axes of the fourth connecting rod 134 relative to the first connecting plate 23 and the second connecting plate 24 are the seventh rotation axis and the eighth rotation axis respectively. The fifth rotation axis, the sixth rotation axis, the seventh rotation axis and the eighth rotation axis are parallel and extend in the left and right directions.

[0091] To facilitate understanding of the adjustment of the front end of the second frame 12 by the seat adjustment assembly 100, an example is given in which the front end of the second adjustment section 2312 is lower than the rear end of the second adjustment section 2312, that is, the second adjustment section 2312 is lower at the front and higher at the rear. When the first driving mechanism 3 drives the first slide rail 21 to slide backward, the first connecting plate 23 slides backward relative to the second connecting member 136, so that the second connecting member 136 slides forward relative to the slide groove 231. When the second connecting member 136 enters the second adjustment section 2312, since the rear end of the second adjustment section 2312 is higher than the front end of the second adjustment section 2312, the second adjustment section 2312 tends to extend downward from the back to the front. When the second connecting member 136 slides forward relative to the second adjustment section 2312, it is pressed down, that is, the second end of the fourth connecting rod 134 is pressed down to lift the first end of the fourth connecting rod 134, so that the front end of the second frame 12 can be driven by the third connecting rod 133 to rotate and lift around the rotation connection point between the rear end of the second frame 12 and the second connecting plate 24, thereby realizing the zero gravity seat mode. When the front end of the second frame 12 needs to be lowered, the first slide rail 21 can be driven to slide forward by the first driving mechanism 3, and the second connecting member 136 can slide backward relative to the second adjusting section 2312, so that the second connecting member 136 can be gradually raised by the second adjusting section 2312, so that the height of the second end of the fourth connecting rod 134 is gradually reduced, so that the front end of the second frame 12 can be driven to be lowered by the third connecting rod 133.

[0092] It should be noted that this is only an example of one form of the second adjustment section 2312, and it is not a limitation on the form of the second adjustment section 2312. For example, the second adjustment section 2312 can also be formed in a form of high front and low back. When it is necessary to lift the rear end of the second frame 12, the first drive mechanism 3 drives the first slide rail 21 to slide forward, and the second connecting member 136 slides backward relative to the second adjustment section 2312 and is pressed down to lift the front end of the second frame 12; conversely, when it is necessary to lower the front end of the second frame 12, the first drive mechanism 3 drives the first slide rail 21 to slide backward, and the second connecting member 136 slides forward relative to the second adjustment section 2312 and is lifted to lower the front end of the second frame 12.

[0093] According to the seat adjustment assembly 100 of the second aspect of the present invention, the lifting or lowering rate of the second connecting member 136 can be flexibly controlled by adjusting the slope of the second adjustment section 2312, thereby improving the design flexibility of the lifting or lowering rate of the front end of the second frame 12. In addition, the fourth connecting rod 134 can be kept fixed relative to the rotation fulcrum of the second connecting plate 24 through the rotational connection between the fourth connecting rod 134 and the second connecting plate 24, thereby improving the reliability of the transmission of the connecting rod mechanism and improving the stability of controlling the lifting or lowering of the front end of the second frame 12.

[0094] Reference below Figure 1-Figure 17The seat adjustment assembly 100 according to a specific embodiment of the present invention is described. It is worth noting that the following description is only exemplary and intended to be used to explain the present invention, and cannot be construed as limiting the present invention.

[0095] refer to Figure 1 The seat adjustment assembly 100 includes a seat frame assembly 1, a sliding assembly 2, a first driving mechanism 3, a backrest frame 4 and a second driving mechanism 5.

[0096] like Figure 2-Figure 4 As shown, the seat frame assembly 1 includes a first frame 11, a second frame 12 and a connecting rod mechanism. The first frame 11 includes a support plate 111, a first fixing plate 112, a seat pan 113, a seat frame suspension 114, a connecting pipe 115 and a second fixing plate 116. The first fixing plate 112 is provided with two pieces opposite to each other in the left-right direction. The rear ends of the two first fixing plates 112 are welded to the support plate 111, and the front ends of the two first fixing plates 112 are welded to the seat pan 113. The seat frame suspension 114 is buckled with the support plate 111 and the seat pan 113. The seat frame suspension 114 can better support the user's buttocks. The second fixing plate 116 is provided with two pieces spaced apart in the left-right direction and fixed to the bottom surface of the seat pan 113 by bolts. The connecting pipe 115 is rotatably passed through the two second fixing plates 116.

[0097] The second frame 12 includes a second frame side plate 121, a rear cross tube 122, a third fixing plate 123 and a front cross tube 124. The second frame side plate 121 is provided with two opposite pieces along the left and right directions. The support plate 111 and the first fixing plate 112 are located between the second frame side plates 121 on both sides. The rear cross tube 122 is provided between the two second frame side plates 121 and the two ends of the rear cross tube 122 are respectively welded to the rear ends of the two second frame side plates 121. The front cross tube 124 is provided between the two second frame side plates 121 and the two ends of the front cross tube 124 are respectively welded to the front ends of the two second frame side plates 121. The third fixing plate 123 is provided with two opposite pieces along the left and right directions. The third fixing plate 123 is welded to the front cross tube 124. The two ends of the connecting pipe 115 are respectively welded to the two third fixing plates 123 to realize the rotational connection between the connecting pipe 115 and the front end of the second frame 12. The third fixing plate 123 , the front cross pipe 124 and the front ends of the two second frame side plates 121 are all located below the seat pan 113 .

[0098] like Figure 5-9 as well as Fig.17As shown, the connecting mechanism and the sliding assembly 2 are both provided with two groups arranged along the left and right directions, and the connecting rod mechanism includes a first connecting rod 131, a second connecting rod 132, a third connecting rod 133 and a fourth connecting rod 134, the first connecting rod 131 and the second connecting rod 132 are located at the rear side of the third connecting rod 133 and the fourth connecting rod 134, the first end of the first connecting rod 131 is rotatably connected to the first fixed plate 112 through a step bolt 137 and a bushing 138, the second end of the first connecting rod 131 is rotatably connected to the first end of the second connecting rod 132 through a step bolt 137 and a bushing 138, the first end of the third connecting rod 133 is rotatably connected to the front end of the second frame side plate 121 through a step bolt 137 and a bushing 138, and the second end of the third connecting rod 133 is rotatably connected to the first end of the fourth connecting rod 134 through a step bolt 137 and a bushing 138.

[0099] The sliding assembly 2 includes a first slide rail 21, a second slide rail 22, a first connecting plate 23 and a second connecting plate 24. The first slide rail 21 is slidably arranged on the second slide rail 22 along the front-to-back direction. The first connecting plate 23 is fixed to the first slide rail 21 by bolts. A slide groove 231 extending along the front-to-back direction is formed on the first connecting plate 23. The slide groove 231 penetrates the first connecting plate 23 along the left-to-right direction. The second end of the second connecting rod 132 is slidably connected to the slide groove 231 through a step bolt 137 and a bushing 138 and is rotatable relative to the first connecting plate 23. The step bolt 137 and the bushing 138 arranged at the second end of the second connecting rod 132 constitute a first connecting member 135. The second end of the fourth connecting rod 134 is slidably connected to the slide groove 231 through the step bolt 137 and the bushing 138 and is rotatable relative to the first connecting plate 23. The step bolt 137 and the bushing 138 arranged at the second end of the fourth connecting rod 134 constitute a second connecting member 136. The second connecting plate 24 is welded to the second slide rail 22, the middle part of the second connecting rod 132 is rotatably connected to the second connecting plate 24 through the step bolt 137 and the bushing 138, the middle part of the fourth connecting rod 134 is rotatably connected to the second connecting plate 24 through the step bolt 137 and the bushing 138, and the first connecting plate 23 and the second connecting plate 24 cooperate with the second connecting rod 132 and the fourth connecting rod 134 at positions between the sliding components 2 on both sides. The bushing 138 may be a Teflon member to improve the wear resistance of the bushing 138.

[0100] like Fig.10 and Fig.11As shown, the first driving mechanism 3 includes a first driving motor 31, two gear boxes 32, two worms 33, a first transmission shaft 34, a second transmission shaft 35, a fixed bracket 36 and a mounting bracket 37. The fixed bracket 36 extends in the left and right directions and the left and right ends are connected with the mounting bracket 37 by bolts. The mounting bracket 37 is screwed with the corresponding first slide rail 21. The first driving motor 31 is clamped on the fixed bracket 36. The two gear boxes 32 are respectively arranged on the two first slide rails 21. The two worms 33 are respectively connected with the two second slide rails 22 by bolts. The gear box 32 and the corresponding worm 33 cooperate with each other in the form of a worm gear 33. The two ends of the first transmission shaft 34 are respectively plug-fitted with the corresponding gear box 32 and the first driving motor 31. The two ends of the second transmission shaft 35 are respectively plug-fitted with the corresponding gear box 32 and the first driving motor 31.

[0101] like Figure 12-16 As shown, the backrest frame 4 includes a backrest side panel 41, an upper transverse tube 42, a headrest duct 43, a backrest suspension 44, a reinforcement plate 45 and a limit plate 46. The backrest side panel 41 is provided with two pieces which are arranged opposite to each other in the left-right direction. The upper ends of the two backrest side panels 41 are respectively welded to the two ends of the upper transverse tube 42. The headrest duct 43 is welded to the upper transverse tube 42 and is provided with two pieces which are spaced apart in the left-right direction. The lower ends of the two backrest side panels 41 are welded to the left and right ends of the reinforcement plate 45. The backrest suspension 44 is clamped on the two backrest side panels 41 and the reinforcement plate 45. The backrest suspension 44 can better support the user's back.

[0102] The second driving mechanism 5 includes a second driving motor 51, a recliner 52, a linkage shaft 53, a lower connecting plate 54 and a retaining spring 55, wherein two recliners 52 and two lower connecting plates 54 are provided, and the two backrest side plates 41 are connected to the lower connecting plate 54 through corresponding recliners 52, respectively. The recliners 52, the backrest side plates 41 and the lower connecting plate 54 are welded, and a limit plate 46 is welded on the backrest side plate 41 to limit the rotation angle of the lower connecting plate 54 relative to the backrest side plate 41. The second driving motor 51 is fixed to one side of the backrest side plate 41 by bolts, and the linkage shaft 53 passes through the first driving motor 31 and the two recliners 52, and the two ends of the linkage shaft 53 are connected to the two recliners 52 by retaining springs 55. In addition, the linkage shaft 53 is inserted into the reinforcing plate 45, and the linkage shaft 53 can rotate relative to the reinforcing plate 45, so that the reinforcing plate 45 can provide a good protection effect on the linkage shaft 53.

[0103] The following describes a seat according to an embodiment of the third aspect of the present invention with reference to the accompanying drawings.

[0104] A seat according to an embodiment of the third aspect of the present invention includes: a seat adjustment assembly 100 .

[0105] According to the seat embodiment of the third aspect of the present invention, the lifting or lowering rate of the first connecting member 135 can be flexibly controlled by adjusting the slope of the first adjustment section 2311, thereby improving the design flexibility of the lifting or lowering rate of the rear end of the first frame 11. In addition, the second connecting rod 132 can be kept fixed relative to the rotation fulcrum of the second connecting plate 24 through the rotational connection between the second connecting rod 132 and the second connecting plate 24, thereby improving the reliability of the transmission of the connecting rod mechanism and improving the stability of controlling the lifting or lowering of the rear end of the first frame 11.

[0106] A vehicle according to a fourth embodiment of the present invention will be described below with reference to the accompanying drawings.

[0107] A vehicle according to an embodiment of the fourth aspect of the present invention includes: a seat.

[0108] According to the vehicle of the fourth aspect of the present invention, the lifting or lowering rate of the first connecting member 135 can be flexibly controlled by adjusting the slope of the first adjustment section 2311, thereby improving the design flexibility of the lifting or lowering rate of the rear end of the first frame 11. In addition, the second connecting rod 132 can be kept fixed relative to the rotation fulcrum of the second connecting plate 24 through the rotational connection between the second connecting rod 132 and the second connecting plate 24, thereby improving the reliability of the transmission of the connecting rod mechanism and improving the stability of controlling the lifting or lowering of the rear end of the first frame 11.

[0109] 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 connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0110] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means 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 invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described 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.

[0111] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A seat adjustment assembly, characterized in that: include: A seat frame assembly, comprising a first frame, a second frame and a connecting rod mechanism, wherein the front end of the first frame is rotatably connected to the second frame, the connecting rod mechanism comprises a first connecting rod and a second connecting rod, the first end of the first connecting rod is rotatably connected to the rear end of the first frame, and the second end of the first connecting rod is rotatably connected to the first end of the second connecting rod; The sliding assembly comprises a first slide rail, a second slide rail, a first connecting plate and a second connecting plate, wherein the first slide rail is slidably arranged on the second slide rail in a front-to-back direction, the first connecting plate is arranged on the first slide rail and is formed with a slide groove extending in a front-to-back direction, the second connecting plate is arranged on the second slide rail and is connected to the second frame, a first connecting member is arranged at the second end of the second connecting rod, the first connecting member is slidably arranged in the slide groove in a front-to-back direction and is rotatable relative to the first connecting plate, the second connecting rod is rotatably connected to the second connecting plate, the slide groove comprises at least a first adjustment section, and the heights of the front and rear ends of the first adjustment section are different; The first driving mechanism is used to drive the first slide rail to slide along the second slide rail.

2. The seat adjustment assembly according to claim 1, characterized in that: The linkage mechanism also includes a third link and a fourth link, a first end of the third link being rotatably connected to the front end of the second frame, a second end of the third link being rotatably connected to the first end of the fourth link, and a rear end of the second frame being rotatably connected to the second connecting plate, a second end of the fourth link being provided with a second connecting piece, the second connecting piece being slidably arranged in the slide slot along a front-to-rear direction and rotatable relative to the first connecting plate, the fourth link being rotatably connected to the second connecting plate, the slide slot also includes a second adjustment section, a first horizontal section and a second horizontal section, the first adjustment section is connected to the first horizontal section, the front and rear ends of the second adjustment section have different heights, the second adjustment section is connected to the second horizontal section, the first connecting piece is slidable between the first adjustment section and the first horizontal section, and the second connecting piece is slidable between the second adjustment section and the second horizontal section.

3. The seat adjustment assembly according to claim 2, characterized in that: The first adjustment section is located at the rear side of the first horizontal section, and the rear end of the first adjustment section is lower than the front end of the first adjustment section. The second adjustment section is located at the front side of the second horizontal section, and the rear end of the second adjustment section is higher than the front end of the second adjustment section. The first horizontal section and the second horizontal section are at the same height, and the rear end of the second horizontal section is connected to the front end of the first horizontal section.

4. The seat adjustment assembly according to claim 3, characterized in that: The seat adjustment assembly has at least a first state, a second state and a third state; wherein: In the first state, the first connecting member is located in the first adjustment section, and the second connecting member is located in the second horizontal section; In the second state, the first connecting member is located in the first horizontal section, and the second connecting member is located in the second adjustment section; In the third state, the first connecting member is located in the first horizontal section, and the second connecting member is located in the second horizontal section.

5. The seat adjustment assembly according to claim 1, characterized in that: The sliding assembly and the connecting rod mechanism are each provided with two of them spaced apart in the left-right direction, the first driving mechanism includes a first driving motor, the first sliding rails of the sliding assembly on both sides are drivingly connected to the output shaft of the first driving motor, and the first driving motor is used to drive the first sliding rails on both sides to slide.

6. The seat adjustment assembly according to claim 5, characterized in that: A worm wheel is provided on the first slide rail, and a worm is provided on the second slide rail that is transmission-connected to the worm wheel. The first driving mechanism also includes a first transmission shaft and a second transmission shaft. The first driving motor is rotationally connected to the worm wheels on both sides through the first transmission shaft and the second transmission shaft, respectively, to drive the worm wheels to rotate.

7. The seat adjustment assembly according to claim 6, characterized in that: The first drive motor is a dual-output shaft motor, the first transmission shaft and the second transmission shaft are respectively connected to two output shafts of the dual-output shaft motor, and / or the first transmission shaft and the second transmission shaft are both flexible shafts.

8. The seat adjustment assembly according to claim 1, characterized in that: It also includes a backrest frame and a second driving mechanism, the second driving mechanism includes a second driving motor, a linkage shaft and an angle adjuster, two angle adjusters are provided, the left and right sides of the lower end of the backrest frame are connected to the rear end of the second frame through the angle adjuster, and the output shaft of the second driving motor is connected to the angle adjusters on both sides through the linkage shaft.

9. A seat adjustment assembly, characterized in that: include: A seat frame assembly, comprising a second frame and a connecting rod mechanism, wherein the connecting rod mechanism comprises a third connecting rod and a fourth connecting rod, wherein a first end of the third connecting rod is rotatably connected to a front end of the second frame, and a second end of the third connecting rod is rotatably connected to a first end of the fourth connecting rod; The sliding assembly comprises a first slide rail, a second slide rail, a first connecting plate and a second connecting plate, the first slide rail being slidably arranged on the second slide rail in a front-to-back direction, the first connecting plate being arranged on the first slide rail and forming a slide groove extending in a front-to-back direction, the second connecting plate being arranged on the second slide rail, the rear end of the second frame being rotatably connected to the second connecting plate, the second end of the fourth connecting rod being provided with a second connecting piece, the second connecting piece being slidably arranged in the slide groove in a front-to-back direction and rotatable relative to the first connecting plate, the fourth connecting rod being rotatably connected to the second connecting plate, the slide groove comprising at least a second adjusting section, the front and rear ends of the second adjusting section having different heights; The first driving mechanism is used to drive the first slide rail to slide along the second slide rail.

10. A seat, characterized in that: include: A seat adjustment assembly according to any one of claims 1 to 9.

11. A vehicle, characterized in that: include: A seat according to claim 10.

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