Seat adjusting assembly, seat and vehicle

Abstract

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 rotationally connected with a second frame, the first end of a first connecting rod is rotationally connected with the rear end of the first frame, and the second end of the first connecting rod is rotationally 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 utility model relates to vehicle seat adjusting assembly technical field especially is a kind of seat adjusting assembly, seat and vehicle. BACKGROUND

[0002] With the continuous improvement of living standards, the demand for comfort of vehicle is also improving when user purchases vehicle, wherein, the comfort of seat adjusting assembly of vehicle directly influences the driving feeling of user, therefore, car enterprise gradually values the adjustable ability of seat adjusting assembly to improve the comfort of sitting, such as the height of back end and front end of cushion can be independently adjusted, but the design flexibility of seat posture adjusting rate and transmission stability in the related art are obviously insufficient.Therefore, there is room for improvement. SUMMARY

[0003] The utility model discloses a seat adjusting assembly, the seat adjusting assembly has the advantages of adjusting rate design flexibility and high adjusting stability.

[0004] According to the seat adjusting assembly of the utility model first aspect embodiment, including: the first frame, second frame and connecting rod mechanism of frame assembly, the front end of the first frame is rotatably connected with the second frame, the connecting rod mechanism includes first connecting rod and second connecting rod, the first end of the first connecting rod is rotatably connected with the rear end of the first frame, the second end of the first connecting rod is rotatably connected with the first end of the second connecting rod;Sliding assembly, including first slide rail, second slide rail, first connecting plate and second connecting plate, the first slide rail is slidably arranged in the second slide rail along the front and back direction, the first connecting plate is arranged in the first slide rail and is formed with the slide groove extending along the front and back direction, the second connecting plate is arranged in the second slide rail and is connected with the second frame, the second end of the second connecting rod is equipped with first connecting piece, the first connecting piece is slidably arranged in the slide groove along the front and back direction and rotatably relative to the first connecting plate, the second connecting rod is rotatably connected with the second connecting plate, the slide groove includes at least first adjusting section, the height of the front and back two ends of the first adjusting section is different;First drive mechanism is used to drive the first slide rail to slide along the second slide rail.

[0005] According to the seat adjusting assembly of the utility model first aspect embodiment, the lifting or lowering rate of first connecting piece can be flexibly controlled by adjusting the slope of first adjusting section, so that the design flexibility of the lifting or lowering rate of rear end of first frame can be improved, in addition, the rotation fulcrum of second connecting rod relative to second connecting plate can be kept fixed by the rotatable connection of second connecting rod and second connecting plate, so that the reliability of connecting rod mechanism transmission can be improved, to improve the stability of controlling the lifting or lowering of rear end of first frame.

[0006] According to some embodiments of the utility model, the connecting rod mechanism further includes third connecting rod and fourth connecting rod, first end of third connecting rod with second frame's front end rotatory connection, second end of third connecting rod with first end of fourth connecting rod rotatory connection, the rear end of second frame with second connecting plate rotatory connection, second end of fourth connecting rod is equipped with second connecting piece, second connecting piece is slidably arranged in the chute along the front and back direction and rotatable relative to first connecting plate, fourth connecting rod with second connecting plate rotatory connection, the chute further includes second adjusting section, first horizontal section and second horizontal section, first adjusting section with first horizontal section intercommunication, the height of front and back two ends of second adjusting section is different, second adjusting section with second horizontal section intercommunication, first connecting piece is slidably between first adjusting section and first horizontal section, second connecting piece is slidably between second adjusting section and second horizontal section.

[0007] According to some embodiments of the utility model, the first adjusting section is located at the rear side of the first horizontal section, the rear end of the first adjusting section is lower than the front end of the first adjusting section, the second adjusting section is located at the front side of the second horizontal section, the rear end of the second adjusting section is higher than the front end of the second adjusting 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 in communication with the front end of the first horizontal section.

[0008] According to some embodiments of the utility model, the seat adjusting assembly has at least a first state, a second state and a third state; wherein: in the first state, the first connecting piece is located in the first adjusting section, and the second connecting piece is located in the second horizontal section; in the second state, the first connecting piece is located in the first horizontal section, and the second connecting piece is located in the second adjusting section; in the third state, the first connecting piece is located in the first horizontal section, and the second connecting piece is located in the second horizontal section.

[0009] According to some embodiments of the utility model, the sliding assembly and the connecting rod mechanism are both provided with two, which are arranged at intervals along the left-right direction, the first drive mechanism includes a first drive motor, and the first sliding rails of the two sliding assemblies are both in transmission connection with the output shaft of the first drive motor, and the first drive motor is used to drive the two first sliding rails to slide.

[0010] According to some embodiments of the utility model, a worm gear is arranged on the first sliding rail, the second sliding rail is provided with a worm that is in transmission connection with the worm gear, the first drive mechanism further includes a first transmission shaft and a second transmission shaft, the first drive motor is rotatably connected with the two worm gears through the first transmission shaft and the second transmission shaft respectively, and is used to drive the worm gears to rotate.

[0011] According to some embodiments of the present application, the first driving motor is a double-output shaft motor, and the first transmission shaft and the second transmission shaft are respectively connected with two output shafts of the double-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 application, the first driving mechanism further comprises a fixed support extending along the left-right direction, two ends of the fixed support are respectively connected with the first slide rails on the two sides, and the first driving motor is arranged on the fixed support.

[0013] According to some embodiments of the present application, the seat adjusting assembly further comprises a backrest frame body and a second driving mechanism, the second driving mechanism comprises a second driving motor, a linkage shaft and angle adjusters, two angle adjusters are arranged, left and right sides of the lower end of the backrest frame body are connected with the rear end of the second frame through the angle adjusters, and an output shaft of the second driving motor is connected with the angle adjusters on the two sides through the linkage shaft.

[0014] The present application provides a seat adjusting assembly.

[0015] According to the vehicle of the second aspect of the present application, the slope of the second adjusting section can be adjusted to flexibly control the lifting or lowering speed of the second connecting piece, thereby improving the design flexibility of the lifting or lowering speed of the front end of the second frame, and the rotating connection between the fourth connecting rod and the second connecting plate can keep the rotating fulcrum of the fourth connecting rod relative to the second connecting plate fixed, thereby improving the reliability of the transmission of the connecting rod mechanism and the stability of controlling the lifting or lowering of the front end of the second frame.

[0016] According to the vehicle of the second aspect of the present application, the slope of the second adjusting section can be adjusted to flexibly control the lifting or lowering speed of the second connecting piece, thereby improving the design flexibility of the lifting or lowering speed of the front end of the second frame, and the rotating connection between the fourth connecting rod and the second connecting plate can keep the rotating fulcrum of the fourth connecting rod relative to the second connecting plate fixed, thereby improving the reliability of the transmission of the connecting rod mechanism and the stability of controlling the lifting or lowering of the front end of the second frame.

[0017] The third aspect of the utility model provides a seat.

[0018] The seat according to the third aspect of the utility model embodiment comprises the seat adjusting assembly.

[0019] The seat according to the third aspect of the utility model embodiment can flexibly control the lifting or lowering speed of the first connecting piece by adjusting the slope of the first adjusting section, thereby improving the design flexibility of the lifting or lowering speed of the rear end of the first frame, in addition, the rotary connection of the second connecting rod and the second connecting plate can keep the rotary fulcrum of the second connecting rod relative to the second connecting plate fixed, thereby improving the reliability of the connecting rod mechanism transmission, to improve the stability of controlling the lifting or lowering of the rear end of the first frame.

[0020] The fourth aspect of the utility model provides a vehicle.

[0021] The vehicle according to the fourth aspect of the utility model embodiment comprises the seat.

[0022] The vehicle according to the fourth aspect of the utility model embodiment can flexibly control the lifting or lowering speed of the first connecting piece by adjusting the slope of the first adjusting section, thereby improving the design flexibility of the lifting or lowering speed of the rear end of the first frame, in addition, the rotary connection of the second connecting rod and the second connecting plate can keep the rotary fulcrum of the second connecting rod relative to the second connecting plate fixed, thereby improving the reliability of the connecting rod mechanism transmission, to improve the stability of controlling the lifting or lowering of the rear end of the first frame.

[0023] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be known by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the schematic diagram of seat adjusting assembly according to the utility model embodiment;

[0025] Figure 2 It is the schematic diagram of seat adjusting assembly according to the utility model embodiment;

[0026] Figure 3 It is Figure 2 The schematic diagram of another angle of structure in

[0027] Figure 4 It is Figure 2 The schematic diagram of another angle of structure in Figure 3 Different from the angle of

[0028] Figure 5 It is Figure 2A top view of the structure with the A-A section position marked;

[0029] Figure 6 is Figure 5 A sectional view along A-A;

[0030] Figure 7 is Figure 2 A top view of the structure with the B-B section position marked;

[0031] Figure 8 is Figure 7 A sectional view along B-B;

[0032] Figure 9 is Figure 2 The structure and Figure 3 and Figure 4 A schematic view of another angle different from the angle;

[0033] Figure 10 is a schematic view of a first slide rail, a second slide rail and a first driving mechanism of a seat adjusting assembly according to an embodiment of the present application;

[0034] Figure 11 is a sectional view of a first slide rail, a second slide rail and a first driving mechanism of a seat adjusting assembly according to an embodiment of the present application;

[0035] Figure 12 is a schematic view of a backrest frame body and a second driving mechanism of a seat adjusting assembly according to an embodiment of the present application;

[0036] Figure 13 is Figure 12 A schematic view of another angle of the structure;

[0037] Figure 14 is Figure 12 A partial enlarged view of;

[0038] Figure 15 is Figure 13 A partial enlarged view of;

[0039] Figure 16 is a schematic view of a clasp of a seat adjusting assembly according to an embodiment of the present application;

[0040] Figure 17 is a schematic view of a step bolt and a bushing of a seat adjusting assembly according to an embodiment of the present application.

[0041] Reference signs:

[0042] 100, a seat adjusting assembly;

[0043] 1, a seat frame assembly;

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

[0045] 12, second frame; 121, second frame side plate; 122, rear cross pipe; 123, third fixed plate; 124, front cross pipe;

[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 piece; 136, second connecting piece; 137, stepped bolt; 138, bushing;

[0047] 2, sliding assembly; 21, first slide rail; 22, second slide rail; 23, first connecting plate; 231, sliding groove; 2311, first adjusting section; 2312, second adjusting 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 support; 37, mounting support;

[0049] 4, backrest frame; 41, backrest side plate; 42, upper cross pipe; 43, headrest guide pipe; 44, backrest suspension; 45, reinforcing plate; 46, limiting piece;

[0050] 5, second drive mechanism; 51, second drive motor; 52, angle adjuster; 53, linkage shaft; 54, lower connecting plate; 55, snap spring. DETAILED DESCRIPTION

[0051] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0052] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0053] The seat adjustment assembly 100 according to a first aspect of the present invention is described below with reference to the accompanying drawings.

[0054] like Figures 1 to 4 As shown, the seat adjustment assembly 100 according to a first aspect embodiment of the present invention includes: a seat frame assembly 1, a sliding assembly 2, and a first drive mechanism 3. The seat frame assembly 1 includes a first frame 11, a second frame 12, and a linkage mechanism. The front end of the first frame 11 is rotatably connected to the second frame 12. The linkage mechanism includes a first link 131 and a second link 132. The first end of the first link 131 is rotatably connected to the rear end of the first frame 11, and the second end of the first link 131 is rotatably connected to the first end of the second link 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 extends along the front-rear direction. The first connecting plate 23 is slidably disposed on the second slide rail 22 and is disposed on the first slide rail 21 and forms a slide groove 231 extending in the front-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-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 includes at least a first adjusting section 2311. The front and rear ends of the first adjusting section 2311 have different heights. The first driving mechanism 3 is used to drive the first slide rail 21 to slide along the second slide rail 22.

[0055] In the embodiment, the first frame 11 is an inner frame, and the second frame 12 is an outer frame. The sliding assembly 2 is connected with 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 with the first connecting plate 23 through the first connecting piece 135. The rotatable connection position of the second connecting rod 132 and the second connecting plate 24 is preferably a middle position between the first end and the second end of the second connecting rod 132, and can also be other positions between the first end and the second end of the second connecting rod 132, so that the second connecting rod 132 forms a lever structure with the rotation fulcrum located at the connection position of the second connecting rod 132 and the second connecting plate 24, so that the movement of the first end of the second connecting rod 132 can be driven by driving the movement of the second end of the second connecting rod 132, and then the movement of the first connecting rod 131 can be driven by the movement of the first end of the second connecting rod 132 to realize the lifting or lowering of the rear end of the first frame 11.

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

[0057] 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. 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-right direction.

[0058] For the convenience of understanding the adjustment of the seat adjusting assembly 100 to the rear end of the first frame 11, the rear end of the first adjusting section 2311 is lower than the front end of the first adjusting section 2311 as an example, that is, the first adjusting section 2311 is high in front and low in back. When the first drive mechanism 3 drives the first sliding rail 21 to slide forward relative to the second sliding rail 22, the first connecting plate 23 slides forward relative to the first connecting piece 135, so that the first connecting piece 135 slides backward relative to the sliding groove 231. When the first connecting piece 135 enters the first adjusting section 2311, because the rear end of the first adjusting section 2311 is lower than the front end of the first adjusting section 2311, the first adjusting section 2311 has a downward extending trend in the direction from front to back, and the first connecting piece 135 is pressed downward when it slides backward relative to the first adjusting section 2311, that is, the second end of the second connecting rod 132 is pressed downward to lift the first end of the second connecting rod 132, so that the first end of the first frame 11 can be lifted by the first connecting rod 131 around the rotating connection point between the front end of the first frame 11 and the second frame 12. When the backrest of the seat is reclined at a large angle, the gap 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, so as to better support the human body and improve the riding comfort. When it is needed to lower the rear end of the first frame 11, the first drive mechanism 3 can be driven to drive the first sliding rail 21 to slide backward relative to the second sliding rail 22, and the first connecting piece 135 can slide forward relative to the first adjusting section 2311, so that the first connecting piece 135 can be gradually lifted by the first adjusting section 2311, and the height of the second end of the second connecting rod 132 can be gradually lowered, so that the rear end of the first frame 11 can be lowered by the first connecting rod 131.

[0059] It should be noted that this is only an example of one form of the first adjusting section 2311, and is not a limitation on the form of the first adjusting section 2311. For example, the first adjusting section 2311 can also be formed in a form of low in front and high in back. When it is needed to lift the rear end of the first frame 11, the first drive mechanism 3 can be driven to drive the first sliding rail 21 to slide backward, and the first connecting piece 135 can be pressed downward relative to the first adjusting section 2311 to lift the rear end of the first frame 11. Conversely, when it is needed to lower the rear end of the first frame 11, the first drive mechanism 3 can be driven to drive the first sliding rail 21 to slide forward, and the first connecting piece 135 can be lifted relative to the first adjusting section 2311 to lower the rear end of the first frame 11.

[0060] According to the seat adjusting assembly 100 of the first aspect of the utility model, the lifting or lowering speed of the first connecting piece 135 can be flexibly controlled by adjusting the slope of the first adjusting section 2311, so that the design flexibility of the lifting or lowering speed of the rear end of the first frame 11 can be improved, and in addition, the rotation pivot of the second connecting rod 132 relative to the second connecting plate 24 can be kept fixed through the rotation connection of the second connecting rod 132 and the second connecting plate 24, so that the reliability of the connecting rod mechanism transmission can be improved, and the stability of controlling the lifting or lowering of the rear end of the first frame 11 can be improved.

[0061] In some embodiments, the first slide rail 21 and the second slide rail 22 can be arranged in the up-down direction, for example, 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 can be arranged in the left-right direction, for example, 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, and the like. It should be noted that here only some of the layout modes of the first slide rail 21 and the second slide rail 22 are limited, as long as the first slide rail 21 can slide relative to the second slide rail 22 in the front-rear direction, and the layout mode of the first slide rail 21 and the second slide rail 22 is not limited here.

[0062] According to some embodiments of the utility model, the connecting rod mechanism further includes a third connecting rod 133 and a fourth connecting rod 134, the first end of the third connecting rod 133 is rotationally connected with the front end of the second frame 12, the second end of the third connecting rod 133 is rotationally connected with the first end of the fourth connecting rod 134, the rear end of the second frame 12 is rotationally connected with the second connecting plate 24, the second end of the fourth connecting rod 134 is provided with a second connecting piece 136, the second connecting piece 136 is slidably arranged in the sliding groove 231 in the front-rear direction and is rotatable relative to the first connecting plate 23, the fourth connecting rod 134 is rotationally connected with the second connecting plate 24, the sliding groove 231 further includes a second adjusting section 2312, a first horizontal section 2313 and a second horizontal section 2314, the first adjusting section 2311 is communicated with the first horizontal section 2313, the front and rear ends of the second adjusting section 2312 are different in height, the second adjusting section 2312 is communicated with the second horizontal section 2314, the first connecting piece 135 is slidable between the first adjusting section 2311 and the first horizontal section 2313, and the second connecting piece 136 is slidable between the second adjusting section 2312 and the second horizontal section 2314.

[0063] That is, the sliding assembly 2 is connected with the first frame 11 through the first connecting rod 131 and the second connecting rod 132, and is connected with 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 with the first connecting plate 23 through the second connecting piece 136, and the rotation connection position of the fourth connecting rod 134 and the second connecting plate 24 is preferably the middle position of the fourth connecting rod 134 between the first end and the second end, and can also be other positions of the fourth connecting rod 134 between the first end and the second end, so that the fourth connecting rod 134 forms a lever structure with the rotation fulcrum located at the connection position of the fourth connecting rod 134 and the second connecting plate 24, so that the movement of the second end of the fourth connecting rod 134 can drive the movement of the first end of the fourth connecting rod 134, and then the movement of the first end of the fourth connecting rod 134 can drive the movement of the third connecting rod 133 to realize the lifting or lowering of the front end of the second frame 12.

[0064] Furthermore, the first connecting piece 135 is slidably arranged in the sliding groove 231 in the front-rear direction, and the second connecting piece 136 is slidably arranged in the sliding groove 231 in the front-rear direction, the positions of the first connecting piece 135 and the second connecting piece 136 in the sliding groove 231 can be adjusted by driving the first sliding rail 21 to slide relative to the second sliding rail 22 through the first driving mechanism 3, since the sliding groove 231 has the first adjusting section 2311 and the second adjusting section 2312 with different heights at the front and rear ends, and the first horizontal section 2313 and the second horizontal section 2314 extending in the horizontal direction, therefore, through the cooperation of the first adjusting section 2311 and the first connecting piece 135 and the cooperation of the second adjusting section 2312 and the second connecting piece 136, only by controlling the first sliding rail 21 to slide along the second sliding rail 22 through the first driving mechanism 3, the rear end of the first frame 11 and the front end of the second frame 12 can be lifted or lowered through the connecting rod mechanism, the number of parts of the seat adjusting assembly 100 can be reduced, the structure of the seat adjusting assembly 100 can be better simplified, and the production cost and energy consumption of the seat adjusting assembly 100 can be reduced.

[0065] In addition, by arranging the first horizontal section 2313 and the second horizontal section 2314, during the adjustment of the lifting or lowering of the rear end of the first frame 11, the second connecting piece 136 can slide in the second horizontal section 2314 in the front-rear direction to keep the height of the front end of the second frame 12 unchanged, and during the adjustment of the lifting or lowering of the front end of the second frame 12, the first connecting piece 135 can slide in the first horizontal section 2313 in the front-rear direction to keep the height of the rear end of the first frame 11 unchanged, so as to facilitate the separate 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] Meanwhile, the lifting or lowering speed of the first connecting piece 135 and the second connecting piece 136 can be flexibly controlled by adjusting the slopes of the first adjusting section 2311 and the second adjusting section 2312, so that the design flexibility of the angle adjusting speed of the rear end of the first frame 11 and the front end of the second frame 12 can be improved, in addition, the rotation pivot of the second connecting rod 132 relative to the second connecting plate 24 can be fixed through the rotation connection between the second connecting rod 132 and the second connecting plate 24, and the rotation pivot of the fourth connecting rod 134 relative to the second connecting plate 24 can be fixed through the rotation connection between the fourth connecting rod 134 and the second connecting plate 24, so that the reliability of the connecting rod mechanism transmission can be improved, and 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 can be improved.

[0067] Wherein, 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, 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 rotation axes of the third connecting rod 133 relative to the second frame 12 and the fourth connecting rod 134 are respectively the fifth rotation axis and the sixth rotation axis, the rotation axes of the fourth connecting rod 134 relative to the first connecting plate 23 and the second connecting plate 24 are respectively the seventh rotation axis and the eighth rotation axis, and 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 along the left-right direction.

[0068] According to some embodiments of the present application, the first adjusting section 2311 is located at the rear side of the first horizontal section 2313, the rear end of the first adjusting section 2311 is lower than the front end of the first adjusting section 2311, the second adjusting section 2312 is located at the front side of the second horizontal section 2314, the rear end of the second adjusting section 2312 is higher than the front end of the second adjusting 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 communicated with the front end of the first horizontal section 2313. That is, the first adjusting section 2311, the second adjusting section 2312, the first horizontal section 2313 and the second horizontal section 2314 are communicated in sequence, so that the processing and forming difficulty of the chute 231 can be reduced.

[0069] According to some embodiments of the utility model, the seat adjusting assembly 100 has at least a first state, a second state and a third state; wherein: in the first state, the first connecting piece 135 is located in the first adjusting section 2311, and the second connecting piece 136 is located in the second horizontal section 2314. Wherein, since the first connecting piece 135 can drive the rear end of the first frame 11 to be lifted when being located in the first adjusting section 2311, and the second connecting piece 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 this time, the seat can be in a flat lying mode, that is, the backrest is placed at the maximum angle, the rear end of the first frame 11 is lifted to reduce the difference between the lower end of the backrest and the rear end of the cushion, so as to avoid the discomfort caused by the suspension of the waist of the passenger.

[0070] In the second state, the first connecting piece 135 is located in the first horizontal section 2313, and the second connecting piece 136 is located in the second adjusting section 2312. Wherein, since the first connecting piece 135 is located in the first horizontal section 2313, the height of the rear end of the first frame 11 can be kept fixed, and the second connecting piece 136 can drive the front end of the second frame 12 to be lifted when being located in the second adjusting 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 a zero gravity mode, and the leg of the user 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 piece 135 is located in the first horizontal section 2313, and the second connecting piece 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 like a default height, and the height of the front end of the second frame 12 remains unchanged like a default height, at this time, the seat can be in a regular riding posture, that is, an initial posture.

[0072] Specifically, in the initial position, the first connecting piece 135 is located in the first horizontal section 2313, and the second connecting piece 136 is located in the second horizontal section. When the first driving mechanism 3 drives the first sliding rail 21 to slide forward, the first connecting piece 135 and the second connecting piece 136 slide backward relative to the sliding groove 231. When the first connecting piece 135 enters the first adjusting section 2311, the first connecting piece 135 is depressed when it slides backward relative to the first adjusting section 2311, the second end of the second connecting rod 132 is depressed to lift the first end of the second connecting rod 132, so that the rear end of the first frame 11 can be lifted by the first connecting rod 131 around the rotating connection point between the front end of the first frame 11 and the second frame 12. In this process, the second connecting piece 136 can slide in the second horizontal section 2314, that is, the height of the second connecting piece 136 does not change, so that the third connecting rod 133 and the fourth connecting rod 134 can be kept stationary relative to the second frame 12, so that the posture of the second frame 12 can be kept unchanged during the process of controlling the rear end of the first frame 11 to be lifted or lowered. When it is needed to lower the rear end of the first frame 11, the first driving mechanism 3 can be used to drive the first sliding rail 21 to slide backward, the first connecting piece 135 and the second connecting piece 136 slide forward relative to the sliding groove 231, and the first connecting piece 135 is gradually lifted during the process of sliding forward relative to the first adjusting section 2311, so that the height of the second end of the second connecting rod 132 is gradually lowered, so that the front end of the second frame 12 can be lowered by the third connecting rod 133 around the rotating connection point between the rear end of the second frame 12 and the second connecting plate 24.

[0073] When the first driving mechanism 3 drives the first sliding rail 21 to slide backward, the first connecting piece 135 and the second connecting piece 136 slide forward relative to the sliding groove 231, and the second connecting piece 136 is depressed when it slides forward relative to the second adjusting section 2312, that is, the second end of the fourth connecting rod 134 is depressed to lift the first end of the fourth connecting rod 134, so that the front end of the second frame 12 can be lifted by the third connecting rod 133 around the rotating connection point between the rear end of the second frame 12 and the second connecting plate 24. In this process, the first connecting piece 135 can slide in the first horizontal section 2313, that is, the height of the first connecting piece 135 does not change, so that the first connecting rod 131 and the second connecting rod 132 can be kept 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 during the process of controlling the front end of the second frame 12 to be lifted or lowered. When it is needed to lower the front end of the second frame 12, the first driving mechanism 3 can be used to drive the first sliding rail 21 to slide forward, the first connecting piece 135 and the second connecting piece 136 slide backward relative to the sliding groove 231, and the second connecting piece 136 is gradually lifted during the process of sliding backward along the second adjusting section 2312, so that the height of the second end of the fourth connecting rod 134 is gradually lowered, 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, here is only an example of one of the chute 231 form, in order to understand the way the chute 231 and linkage mechanism. As, in another embodiment, the first horizontal section 2313 is located at the rear side of the first adjusting section 2311, the rear end of the first adjusting section 2311 is higher than the front end of the first adjusting section 2311, the second horizontal section 2314 is located at the front side of the second adjusting section 2312, the front end of the second adjusting section 2312 is higher than the rear end of the second adjusting section 2312, in this embodiment, when the first slide rail 21 is relative to the second slide rail 22 forward sliding, through the third connecting rod 133 and the fourth connecting rod 134 drive the front end of the second frame 12 to lift; when the first slide rail 21 is relative to the second slide rail 22 backward sliding, through the first connecting rod 131 and the second connecting rod 132 drive the rear end of the first frame 11 to lift, here will not be detailed.

[0075] According to some embodiments of the utility model, as shown in Figure 10 and Figure 11 The sliding assembly 2 and the linkage mechanism are both provided with two which are arranged in the left-right direction, the first drive mechanism 3 includes a first drive motor 31, the first slide rail 21 of the two sliding assemblies 2 is in transmission connection with the output shaft of the first drive motor 31, and the first drive motor 31 is used to drive the two first slide rails 21 to slide. That is to say, the sliding assembly 2 located on the left side is connected with the first frame 11 and the second frame 12 through the linkage mechanism on the left side, the sliding assembly 2 located on the right side is connected with the first frame 11 and the second frame 12 through the linkage mechanism on the right side, and the first drive motor 31 can drive the first slide rails 21 on the two sides to slide along the second slide rail 22 in the front-back direction at the same time.

[0076] Therefore, only one first drive motor 31 can control the sliding of the first slide rails 21 on the two sides at the same time, and the lifting and lowering of the rear end of the first frame 11 and the front end of the second frame 12 can be realized, so that the number of first drive motors 31 can be saved, and the cost of the seat adjusting assembly 100 can be reduced. In addition, through the two groups of sliding assemblies 2 and linkage mechanisms on the left and right sides, the transmission stability between the sliding assembly 2 and the seat frame assembly 1 can be improved, so that 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 can be improved.

[0077] According to some embodiments of the utility model, first sliding rail 21 is equipped with worm gear, second sliding rail 22 is equipped with worm 33 of transmission connection with worm gear, first drive mechanism 3 still includes first transmission shaft 34 and second transmission shaft 35, first drive motor 31 is rotatably connected with both sides worm gear through first transmission shaft 34 and second transmission shaft 35 respectively, and is used to drive worm gear rotation. That is to say, first sliding rail 21 and second sliding rail 22 are connected through worm gear and worm 33 structure and realize transmission, first drive motor 31 can pass through first transmission shaft 34 and second transmission shaft 35 respectively drive power transmission to both sides worm gear, drive worm gear rotation on worm 33, to adjust the position of worm gear on worm 33, so that first sliding rail 21 can be driven by worm gear relative to second sliding rail 22 and slide back and forth. Among them, through the cooperation of worm gear and worm 33, the stability of first drive mechanism 3 driving first sliding rail 21 to slide can be improved, at the same time, self-locking can be realized between worm gear and worm 33, so that the position on worm 33 can be maintained when worm gear does not receive the driving force of first drive motor 31, so that the stability of seat frame assembly 1 in multiple modes such as the front end of second frame 12 lifting or the rear end of first frame 11 lifting can be ensured.

[0078] In one specific example, the worm gear is integrated in a gear box 32, which 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 sliding rail 21, and the worm 33 is a lead screw rotatably arranged in the gear box 32, with the rotation axis extending in the front-rear direction.

[0079] According to some embodiments of the utility model, first drive motor 31 is double-output shaft motor, first transmission shaft 34 and second transmission shaft 35 are connected with the two output shafts of double-output shaft motor respectively. Thus, the structure of first drive mechanism 3 can be simplified, and the synchronization of first drive motor 31 driving both sides first sliding rail 21 to slide can be improved. Specifically, the output shaft of first drive motor 31 extends in the left-right direction, and first transmission shaft 34 and second transmission shaft 35 are located on the left and right sides of first drive motor 31 respectively. After first transmission shaft 34 and second transmission shaft 35 are connected with the two output shafts of first drive motor 31, they can directly output driving force to both sides worm gear without the need to set a turning structure between first drive motor 31 and first transmission shaft 34 and second transmission shaft 35, etc., so as to simplify the structure of first drive mechanism 3.

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

[0081] According to some embodiments of the present application, the first driving mechanism 3 further comprises a fixed support 36 extending in the left-right direction, both ends of the fixed support 36 are connected with the two sides of the first sliding rail 21 respectively, and the first driving motor 31 is arranged on the fixed support 36. That is, the two sides of the first sliding rail 21 can be connected through the fixed support 36, so that the front and rear synchronous sliding of the two sides of the first sliding rail 21 can be better ensured, and the positional relationship between the two sides of the sliding assembly 2 can be better maintained, so as to improve the structural stability of the seat adjusting assembly 100 as a whole. Moreover, the fixed support 36 can also provide a mounting position for the first driving motor 31, so that the reuse of the fixed support 36 can be realized, thereby the mounting structure separately arranged for the fixation of the first driving motor 31 can be omitted, so as to reduce the cost of the seat adjusting assembly 100.

[0082] In some embodiments, as shown in Figures 5-8 The fourth connecting rod 134 comprises a third rod body 1341 and a fourth rod body 1342 arranged at an angle, and the rotating 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. In the direction from one end of the third rod body 1341 away from the fourth rod body 1342 to the end of the third rod body 1341 connected with the fourth rod body 1342, the fourth rod body 1342 extends obliquely towards the direction close to the second frame 12. Thus, the space occupied by the second rod body 1322 and the fourth rod body 1342 in the up-down direction can be better reduced, and the overall structure of the connecting rod mechanism is compact and the layout is reasonable.

[0083] Specifically, the first connector 135 is located at the end of the first rod 1321 opposite to the second rod 1322, and the end of the second rod 1322 opposite to the first rod 1321 is rotatably connected to the second end of the first connecting rod 131. The second connector 136 is located at the end of the third rod 1341 opposite to the fourth rod 1342, and the end of the fourth rod 1342 opposite to the third rod 1341 is rotatably connected to the second end of the third connecting rod 133. Figure 8 In the structure shown, the angle between the second rod 1322 and the first rod 1321 in the counterclockwise direction is an obtuse angle, and the angle between the fourth rod 1342 and the third rod 1341 in the counterclockwise direction is an obtuse angle. When the first connecting member 135 is located within the first horizontal segment 2313 and the second connecting member 136 is located within the second horizontal segment 2314, the connection position between the first rod 1321 and the first connecting member 135, as well as the rotational connection position between the second rod 1322 and the first connecting rod 131, are all located above the rotational connection position between the second connecting rod 132 and the second connecting plate 24. The connection position between the third rod 1341 and the second connecting member 136, as well as the rotational connection position between the fourth rod 1342 and the third connecting rod 133, are all 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 this utility model, such as Figures 12-15 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 two angle adjusters 52. The lower left and right sides of the backrest frame 4 are connected to the rear end of the second frame 12 through the angle adjusters 52. The output shaft of the second drive motor 51 is connected to the two side angle adjusters 52 through the linkage shaft 53. Therefore, the second drive motor 51 can drive the linkage shaft 53 to rotate, thereby moving the two side angle adjusters 52 and adjusting the angle between the backrest frame 4 and the seat frame assembly 1 to meet the different seating posture requirements of the occupants.

[0085] In some embodiments, the seat adjustment assembly 100 further includes a third drive mechanism (not shown). The sliding component 2 is mounted on the third drive mechanism, which can drive the sliding component 2 to move back and forth or rotate as a whole. This allows the seat frame assembly 1 and the backrest frame 4 to translate or rotate back and forth via the sliding component 2. This improves the seat's adjustment flexibility to better meet different user needs.

[0086] The seat adjustment assembly 100 according to a second aspect of the present invention is described below with reference to the accompanying drawings.

[0087] According to the seat adjusting assembly 100 of the second aspect of the present application, the seat adjusting assembly 100 comprises a seat frame assembly 1, a sliding assembly 2 and a first driving mechanism 3, the seat frame assembly 1 comprises a second frame 12 and a connecting rod mechanism, the connecting rod mechanism comprises a third connecting rod 133 and a fourth connecting rod 134, the first end of the third connecting rod 133 is rotatably connected with the front end of the second frame 12, the second end of the third connecting rod 133 is rotatably connected with the first end of the fourth connecting rod 134, the sliding assembly 2 comprises a first sliding rail 21, a second sliding rail 22, a first connecting plate 23 and a second connecting plate 24, the first sliding rail 21 is slidably arranged on the second sliding rail 22 along the front-rear direction, the first connecting plate 23 is arranged on the first sliding rail 21 and is formed with a sliding groove 231 extending along the front-rear direction, the second connecting plate 24 is arranged on the second sliding rail 22, the rear end of the second frame 12 is rotatably connected with the second connecting plate 24, the second end of the fourth connecting rod 134 is provided with a second connecting piece 136, the second connecting piece 136 is slidably arranged in the sliding groove 231 along the front-rear direction and is rotatable relative to the first connecting plate 23, the fourth connecting rod 134 is rotatably connected with the second connecting plate 24, and the sliding groove 231 comprises a second adjusting section 2312, the front and rear ends of the second adjusting section 2312 are different in height, and the first driving mechanism 3 is used for driving the first sliding rail 21 to slide along the second sliding rail 22.

[0088] In the present embodiment, the first frame 11 is an inner frame, and the second frame 12 is an outer frame. The sliding assembly 2 is connected with 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 with the first connecting plate 23 through the second connecting piece 136, and the rotatable connection position of 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 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 forms a lever structure with the rotatable connection position between the fourth connecting rod 134 and the second connecting plate 24 as the rotation support point, so that the second end of the fourth connecting rod 134 can be driven to move to drive the first end of the fourth connecting rod 134 to move, and then the first end of the fourth connecting rod 134 drives the third connecting rod 133 to move to realize the lifting or lowering of the front end of the second frame 12.

[0089] And, the rear end of the second frame 12 is rotationally connected with the second connecting plate 24, the second connecting piece 136 is slidably arranged in the sliding groove 231 along the front-rear direction, the first slide rail 21 is driven to slide along the second slide rail 22 by the first driving mechanism 3, the position of the second connecting piece 136 in the sliding groove 231 can be adjusted, and the front end of the second frame 12 can be lifted or lowered by the linkage mechanism through the cooperation of the second adjusting section 2312 and the second connecting piece 136. Since the sliding groove 231 has the second adjusting section 2312 with different heights at the front and rear ends, the lifting or lowering rate of the second connecting piece 136 can be flexibly controlled by adjusting the slope of the second adjusting 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 rotation pivot of the fourth connecting rod 134 relative to the second connecting plate 24 remains fixed through the rotation connection of the fourth connecting rod 134 and the second connecting plate 24, thereby improving the reliability of the linkage mechanism transmission and the stability of the lifting or lowering control of the front end of the second frame 12.

[0090] Wherein, 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, 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 along the left-right direction.

[0091] For the convenience of understanding the adjustment of the seat adjusting assembly 100 to the front end of the second frame 12, the second adjusting section 2312 is taken as an example, which is low in front and high in back, that is, the front end of the second adjusting section 2312 is lower than the rear end of the second adjusting section 2312. 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 piece 136, so that the second connecting piece 136 slides forward relative to the slide groove 231. When the second connecting piece 136 enters the second adjusting section 2312, because the rear end of the second adjusting section 2312 is higher than the front end of the second adjusting section 2312, the second adjusting section 2312 has a downward extending trend from back to front. When the second connecting piece 136 slides forward relative to the second adjusting section 2312, the second connecting piece 136 is pressed downward, that is, the second end of the fourth connecting rod 134 is pressed downward, so that the first end of the fourth connecting rod 134 is lifted up, thereby the front end of the second frame 12 can be lifted up around the rotating connection point between the rear end of the second frame 12 and the second connecting plate 24 through the third connecting rod 133, so that the zero-gravity seat mode can be realized. When it is needed to lower the front end of the second frame 12, the first driving mechanism 3 can be driven to drive the first slide rail 21 to slide forward, so that the second connecting piece 136 slides backward relative to the second adjusting section 2312, thereby the second connecting piece 136 can be gradually lifted up through the second adjusting section 2312, so that the height of the second end of the fourth connecting rod 134 can be gradually lowered, thereby the front end of the second frame 12 can be lowered through the third connecting rod 133.

[0092] It should be noted that the second adjusting section 2312 is only taken as an example of one form, and is not limited to the form of the second adjusting section 2312. For example, the second adjusting section 2312 can also be formed in a form of high in front and low in back. When it is needed to lift up the rear end of the second frame 12, the first driving mechanism 3 can be driven to drive the first slide rail 21 to slide forward, so that the second connecting piece 136 slides backward relative to the second adjusting section 2312 and is pressed downward, to lift up the front end of the second frame 12. Conversely, when it is needed to lower the front end of the second frame 12, the first driving mechanism 3 can be driven to drive the first slide rail 21 to slide backward, so that the second connecting piece 136 slides forward relative to the second adjusting section 2312 and is lifted up, to lower the front end of the second frame 12.

[0093] According to the seat adjusting assembly 100 of the second aspect of the present application, the lifting or lowering speed of the second connecting piece 136 can be flexibly controlled by adjusting the slope of the second adjusting section 2312, so that the design flexibility of the lifting or lowering speed of the front end of the second frame 12 can be improved. In addition, the rotating connection between the fourth connecting rod 134 and the second connecting plate 24 can keep the rotating pivot point of the fourth connecting rod 134 relative to the second connecting plate 24 fixed, so that the reliability of the transmission of the connecting rod mechanism can be improved, and the stability of the lifting or lowering of the front end of the second frame 12 can be improved.

[0094] The seat adjusting assembly 100 of the second aspect of the present application will be described below Figures 1-17A seat adjustment assembly 100 according to embodiments of the present application is described. It is to be understood that the following description is only exemplary and is intended to explain the present application and not to limit the present application.

[0095] Referring 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] As shown in Figures 2-4 , 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 fixed plate 112, a seat plate 113, a seat frame suspension 114, a connecting pipe 115 and a second fixed plate 116, the first fixed plate 112 is provided with two plates opposite in the left-right direction, the rear ends of the two first fixed plates 112 are welded to the support plate 111, the front ends of the two first fixed plates 112 are welded to the seat plate 113, the seat frame suspension 114 is buckled to the support plate 111 and the seat plate 113, the seat frame suspension 114 can better support the user's hips, the second fixed plate 116 is provided with two plates spaced apart in the left-right direction and fixed on the bottom surface of the seat plate 113 by bolts, and the connecting pipe 115 is rotatably provided on the two second fixed plates 116.

[0097] The second frame 12 includes a second frame side plate 121, a rear cross pipe 122, a third fixed plate 123 and a front cross pipe 124, the second frame side plate 121 is provided with two plates opposite in the left-right direction, the support plate 111 and the first fixed plate 112 are located between the two second frame side plates 121, the rear cross pipe 122 is arranged between the two second frame side plates 121 and the two ends of the rear cross pipe 122 are respectively welded to the rear ends of the two second frame side plates 121, the front cross pipe 124 is arranged between the two second frame side plates 121 and the two ends of the front cross pipe 124 are respectively welded to the front ends of the two second frame side plates 121, the third fixed plate 123 is provided with two plates opposite in the left-right direction, the third fixed plate 123 is welded to the front cross pipe 124, and the two ends of the connecting pipe 115 are respectively welded to the two third fixed plates 123 to realize the rotary connection of the connecting pipe 115 and the front end of the second frame 12. Among them, the third fixed 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 plate 113.

[0098] As shown in Figures 5-9 and Figure 17As shown, the connecting mechanism and the sliding assembly 2 are both arranged in two groups along the left-right direction. The connecting 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 stepped 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 stepped 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 stepped bolt 137 and a bushing 138. The second end of the third connecting rod 133 is rotatably connected to the first end of the fourth connecting rod 134 through a stepped bolt 137 and a bushing 138.

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

[0100] As Figure 10 and Figure 11As shown, the first driving mechanism 3 comprises a first driving motor 31, two gear boxes 32, two worm gears 33, a first transmission shaft 34, a second transmission shaft 35, a fixed support 36 and mounting supports 37, the fixed support 36 extends along the left-right direction and both ends thereof are connected with the mounting supports 37 through bolts, the mounting supports 37 are screwed with the corresponding first slide rails 21, the first driving motor 31 is clamped on the fixed support 36, the two gear boxes 32 are respectively arranged on the two first slide rails 21, the two worm gears 33 are respectively connected with the two second slide rails 22 through bolts, the gear box 32 is matched with the corresponding worm gear 33 in the way of worm gear, both ends of the first transmission shaft 34 are respectively matched with the corresponding gear box 32 and the first driving motor 31 in the way of insertion, both ends of the second transmission shaft 35 are respectively matched with the corresponding gear box 32 and the first driving motor 31 in the way of insertion.

[0101] As shown in the drawings, Figures 12-16 As shown, the backrest frame 4 comprises backrest side plates 41, an upper horizontal pipe 42, headrest guide pipes 43, backrest suspensions 44, a reinforcing plate 45 and limiting pieces 46, the backrest side plates 41 are provided with two plates oppositely arranged along the left-right direction, upper ends of the two backrest side plates 41 are respectively welded with both ends of the upper horizontal pipe 42, the headrest guide pipes 43 are welded with the upper horizontal pipe 42 and are provided with two pipes spaced along the left-right direction, lower ends of the two backrest side plates 41 are respectively welded with left and right ends of the reinforcing plate 45, the backrest suspensions 44 are clamped on the two backrest side plates 41 and the reinforcing plate 45, and the backrest suspensions 44 can better support the back of the user.

[0102] The second driving mechanism 5 comprises a second driving motor 51, angle adjusters 52, a linkage shaft 53, lower connecting plates 54 and clamping springs 55, wherein the angle adjusters 52 and the lower connecting plates 54 are both provided with two, the two backrest side plates 41 are respectively connected with the corresponding angle adjusters 52 and the lower connecting plates 54, the angle adjusters 52 are welded with the backrest side plates 41 and the lower connecting plates 54, and the backrest side plates 41 are welded with the limiting pieces 46 for limiting the rotation angle of the lower connecting plates 54 relative to the backrest side plates 41. The second driving motor 51 is fixed on one side of the backrest side plate 41 through bolts, the linkage shaft 53 passes through the first driving motor 31 and the two angle adjusters 52, and both ends of the linkage shaft 53 are respectively connected with the two angle adjusters 52 through the clamping springs 55. In addition, the linkage shaft 53 passes through the reinforcing plate 45, and the linkage shaft 53 is rotatable relative to the reinforcing plate 45, so that the reinforcing plate 45 can provide good protection for the linkage shaft 53.

[0103] The seat according to the third aspect of the present application will be described below with reference to the drawings.

[0104] The seat according to the third aspect of the present application comprises a seat adjustment assembly 100.

[0105] According to the seat of the third aspect of the present application, the lifting or lowering speed of the first connecting piece 135 can be flexibly controlled by adjusting the slope of the first adjusting section 2311, so that the design flexibility of the lifting or lowering speed of the rear end of the first frame 11 can be improved, and in addition, the rotation pivot of the second connecting rod 132 relative to the second connecting plate 24 can be kept fixed through the rotation connection of the second connecting rod 132 and the second connecting plate 24, so that the reliability of the connecting rod mechanism transmission can be improved, and the stability of controlling the lifting or lowering of the rear end of the first frame 11 can be improved.

[0106] A vehicle according to the fourth aspect of the present application will be described below with reference to the drawings.

[0107] A vehicle according to the fourth aspect of the present application comprises a seat.

[0108] A vehicle according to the fourth aspect of the present application can flexibly control the lifting or lowering speed of the first connecting piece 135 by adjusting the slope of the first adjusting section 2311, so that the design flexibility of the lifting or lowering speed of the rear end of the first frame 11 can be improved, and in addition, the rotation pivot of the second connecting rod 132 relative to the second connecting plate 24 can be kept fixed through the rotation connection of the second connecting rod 132 and the second connecting plate 24, so that the reliability of the connecting rod mechanism transmission can be improved, and the stability of controlling the lifting or lowering of the rear end of the first frame 11 can be improved.

[0109] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrated; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0110] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" 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 application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.

[0111] Although the embodiments of the utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A seat adjustment assembly, characterized by, The seat adjusting assembly comprises: a seat frame assembly comprising a first frame, a second frame and a linkage mechanism, the front end of the first frame being rotatably connected with the second frame, the linkage mechanism comprising a first linkage and a second linkage, the first end of the first linkage being rotatably connected with the rear end of the first frame, the second end of the first linkage being rotatably connected with the first end of the second linkage; a sliding assembly comprising 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 along the front-rear direction, the first connecting plate being arranged on the first slide rail and formed with a sliding groove extending along the front-rear direction, the second connecting plate being arranged on the second slide rail and connected with the second frame, the second end of the second linkage being provided with a first connecting member, the first connecting member being slidably arranged in the sliding groove along the front-rear direction and rotatable relative to the first connecting plate, the second linkage being rotatably connected with the second connecting plate, the sliding groove comprising at least a first adjusting section, the front-rear ends of the first adjusting section being different in height; a first driving mechanism for driving the first slide rail to slide along the second slide rail.

2. The seat adjustment assembly of claim 1, wherein, The linkage mechanism further comprises a third linkage and a fourth linkage, the first end of the third linkage being rotatably connected with the front end of the second frame, the second end of the third linkage being rotatably connected with the first end of the fourth linkage, the rear end of the second frame being rotatably connected with the second connecting plate, the second end of the fourth linkage being provided with a second connecting member, the second connecting member being slidably arranged in the sliding groove along the front-rear direction and rotatable relative to the first connecting plate, the fourth linkage being rotatably connected with the second connecting plate, the sliding groove further comprising a second adjusting section, a first horizontal section and a second horizontal section, the first adjusting section being communicated with the first horizontal section, the front-rear ends of the second adjusting section being different in height, the second adjusting section being communicated with the second horizontal section, the first connecting member being slidable between the first adjusting section and the first horizontal section, the second connecting member being slidable between the second adjusting section and the second horizontal section.

3. The seat adjustment assembly of claim 2, wherein, The first adjusting section is located at the rear side of the first horizontal section, the rear end of the first adjusting section being lower than the front end of the first adjusting section, the second adjusting section is located at the front side of the second horizontal section, the rear end of the second adjusting section being higher than the front end of the second adjusting section, the first horizontal section and the second horizontal section being at the same height, the rear end of the second horizontal section being communicated with the front end of the first horizontal section.

4. The seat adjustment assembly of claim 3, wherein, The seat adjusting 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 adjusting 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 adjusting 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 of claim 1, wherein, The sliding assembly and the linkage mechanism are both provided with two arranged in the left-right direction, the first drive mechanism includes a first drive motor, and the first sliding rails of the two sliding assemblies are in transmission connection with the output shaft of the first drive motor, and the first drive motor is used for driving the first sliding rails to slide.

6. The seat adjustment assembly of claim 5, wherein, The first sliding rail is provided with a worm gear, the second sliding rail is provided with a worm shaft in transmission connection with the worm gear, the first drive mechanism further includes a first transmission shaft and a second transmission shaft, and the first drive motor is in rotary connection with the two worm gears through the first transmission shaft and the second transmission shaft respectively, so as to drive the worm gears to rotate.

7. The seat adjustment assembly of claim 6, wherein, The first drive motor is a double-output-shaft motor, the first transmission shaft and the second transmission shaft are connected with the two output shafts of the double-output-shaft motor respectively, and / or the first transmission shaft and the second transmission shaft are both flexible shafts.

8. The seat adjustment assembly of claim 1, wherein, Further comprising a backrest frame and a second drive mechanism, the second drive mechanism includes a second drive motor, a linkage shaft and an angle adjuster, the angle adjuster is provided with two, the left and right sides of the lower end of the backrest frame are connected with the rear end of the second frame through the angle adjuster, and the output shaft of the second drive motor is connected with the two angle adjusters through the linkage shaft.

9. A seat adjustment assembly characterized by, Comprise: The seat frame assembly comprises a second frame and a linkage mechanism, the linkage mechanism comprises a third linkage and a fourth linkage, the first end of the third linkage is in rotary connection with the front end of the second frame, and the second end of the third linkage is in rotary connection with the first end of the fourth linkage; The sliding assembly comprises a first sliding rail, a second sliding rail, a first connecting plate and a second connecting plate, the first sliding rail is slidably arranged on the second sliding rail in the front-rear direction, the first connecting plate is arranged on the first sliding rail and forms a sliding groove extending in the front-rear direction, the second connecting plate is arranged on the second sliding rail, the rear end of the second frame is in rotary connection with the second connecting plate, the second end of the fourth linkage is provided with a second connecting piece, the second connecting piece is slidably arranged in the sliding groove in the front-rear direction and is rotatable relative to the first connecting plate, the fourth linkage is in rotary connection with the second connecting plate, and the sliding groove comprises at least a second adjusting section, the heights of the front and rear ends of the second adjusting section are different; The first drive mechanism is used for driving the first sliding rail to slide along the second sliding rail.

10. A seat, characterized by Comprise: The seat adjusting assembly according to any one of claims 1-9.

11. A vehicle characterized by comprising: Comprise: The seat according to claim 10.

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