An electric vehicle seat adjustment mechanism

Abstract

The present invention relates to an electric vehicle seat adjustment mechanism, which includes a fixed seat. Above the fixed seat, there is a bottom plate. On the bottom plate, there is a seat cushion device with adjustable width. The bottom plate is connected to the fixed seat through an adjustment device. The adjustment device is used to adjust the tilt angle and height of the bottom plate. The fixed seat is fixedly installed on the electric vehicle. The adjustment device includes a first rotating shaft rotatably provided on the bottom plate, a first rotating rod and a second rotating rod with one end rotatably sleeved on the first rotating shaft and the other end rotatably provided on the fixed seat, a first limiting block fixedly provided on the fixed seat, and a first driving component and a second driving component located at both ends of the bottom plate and respectively used to drive the lifting of both ends of the bottom plate. The present invention can adjust the height, tilt angle and width of the electric vehicle seat.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicles, and particularly to an electric vehicle seat adjustment mechanism. Background Art

[0002] Electric vehicles are deeply loved by the general public when traveling. Due to strong demand, the market has been growing by leaps and bounds. The users of electric vehicles cover all age groups, and people vary in height, weight, and build. Therefore, the width, tilt angle, and height of the seat affect the driving comfort during riding. However, in the prior art, the seat of an electric vehicle often uses only one specification for the same model, and the seat is fixedly arranged and cannot be adjusted in width, tilt angle, or height. That is, the seat of an electric vehicle cannot be adjusted according to the physical conditions of the rider, which may also cause instability when the rider turns or brakes, thereby increasing the occurrence of safety accidents. Therefore, there is an urgent need for an electric vehicle that can adjust the width, tilt angle, and height of the seat. Summary of the Invention

[0003] In view of the problems in the prior art, the present invention provides an electric vehicle seat adjustment mechanism.

[0004] The technical solution adopted by the present invention to solve its technical problem is: an electric vehicle seat cushion adjustment mechanism, comprising a fixed seat, a bottom plate is provided above the fixed seat, a width-adjustable seat cushion device is provided on the bottom plate, the bottom plate is connected to the fixed seat by an adjustment device, the adjustment device is used to adjust the inclination angle and height of the bottom plate, the fixed seat is fixedly installed on the electric vehicle; the adjustment device comprises a first rotating shaft rotatably arranged on the bottom plate, a first rotating rod and a second rotating rod, one end of which is rotatably sleeved on the first rotating shaft and the other end of which is rotatably arranged on the fixed seat, a first limiting block fixedly arranged on the fixed seat, a first driving assembly and a second driving assembly located at both ends of the bottom plate and respectively used to drive the two ends of the bottom plate to rise and fall. The first driving assembly comprises a second rotating shaft rotatably arranged on the fixed seat, two third rotating rods arranged in parallel and fixedly sleeved on the second rotating shaft at one end, a third rotating shaft parallel to the second rotating shaft and rotatably arranged on the other ends of the two third rotating rods at both ends, a fourth rotating rod rotatably arranged on the bottom plate at one end and rotatably sleeved on the third rotating shaft at the other end, a rotating element arranged at one end of the second rotating shaft and used to drive the rotation thereof, a second limiting block fixedly arranged at one end of the fixed seat, a first making way groove arranged on the bottom plate for making way for the second limiting block, and the second limiting block is used to limit the third rotating shaft; the first driving assembly has the same structure as the second driving assembly; the first driving assembly and the second driving assembly When the first drive assembly is started separately, the second shaft rotates to drive the third shaft to rotate, thereby driving the third shaft to rotate with the second shaft as the axis, so that the fourth shaft rotates. At this time, the first shaft and the second shaft rotate in coordination, and at the same time, the fourth shaft on the second drive assembly rotates in coordination, so that one end of the base plate is lifted and lowered. The first drive assembly stops, and the second drive assembly starts to control the lifting of the other end of the base plate. The above arrangement can improve the diversity of the inclination angle of the base plate, and make the inclination angle of the seat cushion device diversified to better meet people's needs. At the same time, the above arrangement can also provide a good supporting effect on the lifting of the base plate; the first limit block can be used to limit the distance between the base plate and the fixed seat, and the second limit block can be used to limit the third rotating shaft during the rotation process with the second rotating shaft as the axis, that is, the first limit block and the second limit block can make the base plate only adjustable within the required range, so that the third rotating rod and the fourth rotating rod can rotate within the required angle, and the base plate can be protected from rising or falling; the seat cushion device can be used to adjust the width of the seat cushion according to the fatness or thinness of the rider.

[0005] Specifically, the rotating element includes a fifth rotating rod fixedly sleeved on the second rotating shaft, a base located on one side of the second rotating shaft and fixedly arranged on the fixed seat, a first rotating block rotatably arranged on the base, a second rotating block rotatably arranged at one end of the fifth rotating rod, a screw rod with one end rotatably arranged on the second rotating block and the other end movably penetrating through the first rotating block, a threaded block sleeved on the screw rod, a sixth rotating rod with both ends respectively rotatably arranged on the threaded block and the other end of the fifth rotating rod, and a motor fixedly arranged on the second rotating block and used to drive the screw rod to rotate.

[0006] Specifically, the rotating element further includes an extension shaft with one end fixedly arranged on the first rotating block, a seventh rotating rod with one end fixedly sleeved on the extension shaft, a fixing plate rotatably sleeved on the extension shaft and fixedly arranged on the base, an eighth rotating rod located between the fixing plate and the seventh rotating rod and with one end rotatably sleeved on the extension shaft, a ninth rotating rod located between the eighth rotating rod and the fixing plate and rotatably arranged on the eighth rotating rod, a first slider movably arranged at the other end of the seventh rotating rod, a first connecting shaft with one end rotatably arranged on one end of the ninth rotating rod and the other end rotatably arranged on the first slider, a second slider movably arranged on the fixing plate, a second connecting shaft with one end rotatably arranged on the other end of the ninth rotating rod and the other end rotatably arranged on the second slider, a first spring with both ends respectively fixedly arranged on the first slider and the seventh rotating rod, and a second spring with both ends respectively fixedly arranged on the second slider and the fixing plate.

[0007] Specifically, the seat cushion device includes a left seat cushion and a right seat cushion above the bottom plate, a middle seat cushion below the middle of the left seat cushion and the right seat cushion, a first linkage assembly and a second linkage assembly for driving the left seat cushion and the right seat cushion to move relatively and the middle seat cushion to lift, and a fixing assembly arranged on the bottom plate for locking the first linkage assembly and the second linkage assembly simultaneously. The left seat cushion is arranged flush with the right seat cushion; the first linkage assembly and the second linkage assembly are symmetrically arranged and have the same structure.

[0008] Specifically, the first linkage assembly includes a fourth rotating shaft and a fifth rotating shaft rotatably arranged on the bottom plate, a tenth rotating rod with one end rotatably arranged on the left seat cushion and the other end fixedly sleeved on the fourth rotating shaft, an eleventh rotating rod with one end rotatably arranged on the right seat cushion and the other end fixedly sleeved on the fifth rotating shaft, a twelfth rotating rod with one end fixedly sleeved on the fourth rotating shaft, a thirteenth rotating rod with both ends respectively rotatably arranged on the other end of the twelfth rotating rod and the middle seat cushion, a fourteenth rotating rod with one end fixedly sleeved on the fifth rotating shaft, and a fifteenth rotating rod with both ends respectively rotatably arranged on the other end of the fourteenth rotating rod and the middle seat cushion. The eleventh rotating rod and the tenth rotating rod are symmetrically arranged, the twelfth rotating rod and the fourteenth rotating rod are symmetrically arranged, and the thirteenth rotating rod and the fifteenth rotating rod are symmetrically arranged.

[0009] Specifically, the first linkage assembly further includes a second relief groove provided on the middle seat cushion, a sixteenth rotating rod with one end rotatably provided on the left seat cushion and the other end rotatably provided in the second relief groove, a seventeenth rotating rod with one end rotatably provided on the right seat cushion and the other end rotatably provided in the second relief groove, an eighteenth rotating rod with both ends rotatably provided on the bottom plate and the left seat cushion, and a nineteenth rotating rod with both ends rotatably provided on the bottom plate and the right seat cushion; the sixteenth rotating rod and the seventeenth rotating rod are symmetrically arranged, the eighteenth rotating rod and the nineteenth rotating rod are symmetrically arranged, the eighteenth rotating rod is parallel to the tenth rotating rod, and the nineteenth rotating rod is parallel to the eleventh rotating rod.

[0010] Specifically, the first linkage assembly further includes a first intermittent gear fixedly sleeved on the fourth rotating shaft, a second intermittent gear fixedly sleeved on the fifth rotating shaft, a guide post with one end fixedly provided on the bottom plate, a lifting plate movably sleeved on the guide post, a sliding groove provided on the lifting plate, a first telescopic rod with one end fixedly provided on the fourth rotating shaft, a second telescopic rod with one end fixedly provided on the fifth rotating shaft, a third connecting shaft with one end movably provided in the sliding groove and the other end rotatably provided on the other end of the first telescopic rod, and a fourth connecting shaft with one end movably provided in the sliding groove and the other end rotatably provided on the other end of the second telescopic rod; the first intermittent gear and the second intermittent gear are meshed, and the first telescopic rod and the second telescopic rod are symmetrically arranged.

[0011] Specifically, the fixing assembly includes a lifting frame movably provided on the bottom plate, a jack provided on the bottom plate, a plug rod with one end movably penetrating through the lifting frame, and a third spring sleeved on the plug rod and fixedly provided on the lifting frame and the other end of the plug rod respectively, and the lifting frame is fixedly connected to the lifting plate.

[0012] Specifically, the seat cushion device further includes a limiting post with one end fixedly provided on the middle seat cushion and the other end movably provided on the bottom plate, a first limiting ring fixedly sleeved on the limiting post, and a second limiting ring located below it.

[0013] The beneficial effects of the present invention are:

[0014] When the first driving component and the second driving component are started simultaneously, the two ends of the bottom plate can be lifted simultaneously, thereby completing the vertical movement of the bottom plate and the seat cushion device, that is, completing the lifting work of the seat cushion device. During the lifting process of the bottom plate, the first rotating rod and the second rotating rod rotate accordingly, improving the stability during the lifting process of the bottom plate and playing a role in supporting and assisting; when the first driving component is started alone, the second rotating shaft rotates to drive the third rotating rod to rotate, thereby driving the third rotating shaft to rotate around the second rotating shaft, causing the fourth rotating rod to rotate. At this time, the first rotating rod and the second rotating rod rotate in cooperation, and at the same time, the fourth rotating rod on the second driving component rotates in cooperation, so as to lift one end of the bottom plate; when the first driving component stops and the second driving component is started, similarly, the other end of the bottom plate can be controlled to lift. Through the above settings, the diversification of the inclination angle of the bottom plate can be improved, the inclination angle of the seat cushion device can be diversified, better meeting the needs of people. At the same time, through the above settings, it can also play a good supporting role in the lifting of the bottom plate; through the setting of the seat cushion device, the width of the seat cushion can be adjusted according to the build of the rider. Brief Description of the Drawings

[0015] The present invention will be further described below with reference to the drawings and embodiments.

[0016] Figure 1 is a schematic structural diagram of the present invention;

[0017] Figure 2 is a side schematic view of the present invention;

[0018] Figure 3 is Figure 2 a structural cross-sectional view taken along line A-A in

[0019] Figure 4 is a schematic view of the first linkage component;

[0020] Figure 5 is a schematic view of the rotating element;

[0021] Figure 6 is Figure 5 a cross-sectional view taken along line D-D in

[0022] Figure 7 is Figure 6 an enlarged view of part B in

[0023] Figure 8 is Figure 2 a cross-sectional view taken along line B-B in

[0024] Figure 9 is Figure 2 a cross-sectional view taken along line C-C in

[0025] Figure 10 is Figure 2 a cross-sectional view taken along line E-E in

[0026] Figure 11 is Figure 4 a structural sectional view of the F-F line in

[0027] Figure 12 is Figure 11 an enlarged view of part A in

[0028] Figure 13 is Figure 2 a structural sectional view of the G-G line in

[0029] Figure 14 is Figure 13 an enlarged view of part C in Detailed implementation manners

[0030] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0031] Such as Figures 1-14As shown, an electric vehicle seat adjustment mechanism described in the present invention comprises a fixed seat 1, a bottom plate 2 is arranged above the fixed seat, a width-adjustable seat cushion device 3 is arranged on the bottom plate, the bottom plate is connected to the fixed seat by an adjustment device 4, the adjustment device is used to adjust the inclination angle and height of the bottom plate, and the fixed seat is fixedly installed on the electric vehicle; the adjustment device 4 comprises a first rotating shaft 41 rotatably arranged on the bottom plate, a first rotating rod 42 and a second rotating rod 43, one end of which is rotatably sleeved on the first rotating shaft and the other end of which is rotatably arranged on the fixed seat, a first limiting block 44 fixedly arranged on the fixed seat, and a plurality of first limiting blocks 44 located at both ends of the bottom plate and respectively used to drive the two ends of the bottom plate. The first driving assembly 45 comprises a second rotating shaft 451 rotatably arranged on a fixed seat, two third rotating rods 452 arranged in parallel and fixedly sleeved on the second rotating shaft at one end, a third rotating shaft 453 parallel to the second rotating shaft and rotatably arranged on the other ends of the two third rotating rods at both ends, a fourth rotating rod 454 rotatably arranged on the bottom plate at one end and rotatably sleeved on the third rotating shaft at the other end, a rotating element 455 arranged at one end of the second rotating shaft and used to drive the second rotating shaft to rotate, a second limiting block 456 fixedly arranged at one end of the fixed seat, and a first making way slot 457 arranged on the bottom plate for making way for the second limiting block , the second limit block is used to limit the third rotating shaft; the first driving assembly and the second driving assembly have the same structure; the first driving assembly and the second driving assembly are started at the same time to simultaneously lift and lower both ends of the base plate, thereby completing the vertical movement of the base plate and the cushion device, that is, completing the lifting and lowering work of the cushion device, and the first rotating rod and the second rotating rod rotate accordingly during the lifting and lowering of the base plate; starting the first driving assembly alone, the second rotating shaft rotates to drive the third rotating rod to rotate, thereby driving the third rotating shaft to rotate with the second rotating shaft as the axis, so that the fourth rotating rod rotates, at this time, the first rotating rod and the second rotating rod rotate in coordination, and at the same time, the fourth rotating rod on the second driving assembly rotates in coordination, from To make one end of the base plate rise and fall, the first drive component stops, and the second drive component starts to control the lifting of the other end of the base plate. The above settings can adjust the heights of the two ends of the base plate respectively; the first limit block can limit the distance between the base plate and the fixed seat, and the second limit block can limit the third shaft during the rotation process with the second shaft as the axis, that is, the first limit block and the second limit block can make the base plate only adjustable within the required range, and the third rotating rod and the fourth rotating rod can rotate within the required angle, so as to protect the base plate from rising or falling; the seat cushion device can adjust the width of the seat cushion according to the fatness or thinness of the rider.

[0032] Specifically, the rotating element 455 includes a fifth rotating rod 4551 fixedly sleeved on the second rotating shaft, a base 4552 located on one side of the second rotating shaft and fixedly arranged on the fixed seat, a first rotating block 4553 rotatably arranged on the base, a second rotating block 4554 rotatably arranged at one end of the fifth rotating rod, a screw rod 4555 with one end rotatably arranged on the second rotating block and the other end movably penetrating through the first rotating block, a threaded block 4556 sleeved on the screw rod, a sixth rotating rod 4557 with both ends rotatably arranged on the threaded block and the other end of the fifth rotating rod respectively, and a motor 4569 fixedly arranged on the second rotating block and used to drive the screw rod to rotate; the motor can be obtained by purchasing in the market. By driving the screw rod to rotate, the threaded block moves, thereby driving the sixth rotating rod to rotate, driving the fifth rotating rod to rotate, and the rotation of the fifth rotating rod drives the second rotating shaft to rotate, so as to adjust the height of one end of the bottom plate. During the rotation of the fifth rotating rod, the first rotating block and the second rotating block rotate adaptively, and at the same time, one end of the screw rod moves adaptively on the first rotating block. Through the above settings, the effect of saving effort is achieved, and at the same time, the rotation of the second rotating shaft is stable. By the rotation of the screw rod driving the threaded block to move, when the screw rod stops rotating, the fixation of the threaded block can be completed, and finally the fixation of the fifth rotating rod can be completed. After fixation, a good supporting effect can be achieved, and at the same time, a good protection effect can be achieved on the screw rod.

[0033] Specifically, the rotating element 455 further includes an extension shaft 4558 with one end fixedly arranged on the first rotating block, a seventh rotating rod 4559 with one end fixedly sleeved on the extension shaft, a fixing plate 4560 rotatably sleeved on the extension shaft and fixedly arranged on the base, an eighth rotating rod 4561 located between the fixing plate and the seventh rotating rod and with one end rotatably sleeved on the extension shaft, a ninth rotating rod 4562 located between the eighth rotating rod and the fixing plate and rotatably arranged on the eighth rotating rod, a first slider 4563 movably arranged at the other end of the seventh rotating rod, a first connecting shaft 4564 with one end rotatably arranged on one end of the ninth rotating rod and the other end rotatably arranged on the first slider, a second slider 4565 movably arranged on the fixing plate, a second connecting shaft 4566 with one end rotatably arranged on the other end of the ninth rotating rod and the other end rotatably arranged on the second slider, a first spring 4567 with both ends fixedly arranged on the first slider and the seventh rotating rod respectively, and a second spring 4568 with both ends fixedly arranged on the second slider and the fixing plate respectively; the rotation of the first rotating block drives the extension shaft to rotate, so that the seventh rotating rod rotates around the extension shaft. Through the settings of the first connecting shaft and the first slider, the rotation of the seventh rotating rod drives the ninth rotating rod to rotate. Through the settings of the second slider and the second connecting shaft, the eighth rotating rod rotates. When the eighth rotating rod rotates, the second slider moves on the fixing plate, causing the second spring to stretch and contract. When the ninth rotating rod rotates, the first slider rotates on the seventh rotating rod, causing the first spring to stretch and contract. Through the above settings, the rotational force received by the extension shaft during rotation is ultimately controlled, thereby controlling the rotational force received by the first rotating block during rotation, and finally enabling the rapid locking between the threaded block and the screw rod.

[0034] Specifically, the seat cushion device 3 includes a left seat cushion 31 and a right seat cushion 32 located above the bottom plate, a middle seat cushion 33 located in the lower middle of the left and right seat cushions, a first linkage assembly 34 and a second linkage assembly 35 for driving the relative movement of the left and right seat cushions and the lifting of the middle seat cushion, and a fixing assembly 39 provided on the bottom plate for locking the first and second linkage assemblies at the same time. The left seat cushion is flush with the right seat cushion. The first linkage assembly and the second linkage assembly are symmetrically arranged and have the same structure. The initial positions of the left and right seat cushions are attached to each other. At this time, the middle seat cushion is located below the two. When an obese person rides a bicycle, the first and second linkage assemblies are activated to make the left and right seat cushions move away from each other, and at the same time, the middle seat cushion rises. After the upper end surface of the middle seat cushion is flush with the upper end surfaces of the left and right seat cushions, the first and second linkage assemblies stop working. At this time, the first and second linkage assemblies are fixed by the fixing assembly, that is, the middle seat cushion, the left seat cushion, and the right seat cushion are fixed. Through the above settings, it is equivalent to increasing the width of the left and right seat cushions, so as to adapt to obese cyclists. Through the above settings, the storage work of the middle seat cushion is facilitated.

[0035] Specifically, the first linkage assembly 34 includes a fourth rotating shaft 341 and a fifth rotating shaft 342 rotatably provided on the bottom plate, a tenth rotating rod 343 with one end rotatably provided on the left seat cushion and the other end fixedly sleeved on the fourth rotating shaft, an eleventh rotating rod 344 with one end rotatably provided on the right seat cushion and the other end fixedly sleeved on the fifth rotating shaft, a twelfth rotating rod 345 fixedly sleeved on the fourth rotating shaft at one end, a thirteenth rotating rod 346 with both ends rotatably provided on the other end of the twelfth rotating rod and the middle seat cushion respectively, a fourteenth rotating rod 347 fixedly sleeved on the fifth rotating shaft at one end, and a fifteenth rotating rod 348 with both ends rotatably provided on the other end of the fourteenth rotating rod and the middle seat cushion respectively. The eleventh rotating rod and the tenth rotating rod are symmetrically arranged. The twelfth rotating rod and the fourteenth rotating rod are symmetrically arranged. The thirteenth rotating rod and the fifteenth rotating rod are symmetrically arranged. By driving the relative rotation of the fourth and fifth rotating shafts, the tenth and eleventh rotating rods rotate relative to each other, so that the left and right seat cushions move away from each other, the twelfth and fourteenth rotating rods rotate relative to each other, and the thirteenth and fifteenth rotating rods rotate relative to each other, driving the middle seat cushion to rise. Through the above settings, the relative movement of the left and right seat cushions and the lifting of the middle seat cushion can be driven at the same time.

[0036] Specifically, the first linkage assembly 34 further includes a second relief groove 349 provided on the middle seat cushion, a sixteenth rotating rod 350 with one end rotatably provided on the left seat cushion and the other end rotatably provided in the second relief groove, a seventeenth rotating rod 351 with one end rotatably provided on the right seat cushion and the other end rotatably provided in the second relief groove, an eighteenth rotating rod 352 with both ends rotatably provided on the bottom plate and the left seat cushion, and a nineteenth rotating rod 353 with both ends rotatably provided on the bottom plate and the right seat cushion; the sixteenth rotating rod and the seventeenth rotating rod are symmetrically arranged, the eighteenth rotating rod and the nineteenth rotating rod are symmetrically arranged, the eighteenth rotating rod is parallel to the tenth rotating rod, and the nineteenth rotating rod is parallel to the eleventh rotating rod; through the arrangement of the eighteenth rotating rod and the nineteenth rotating rod, the left seat cushion and the right seat cushion are kept moving relatively horizontally, and through the arrangement of the sixteenth rotating rod and the seventeenth rotating rod, the left seat cushion, the right seat cushion and the middle seat cushion can be synchronized, and a good supporting effect is achieved. When the sixteenth rotating rod and the seventeenth rotating rod are completely located in the second relief groove, they are in the same plane and flush with the left seat cushion and the right seat cushion, thus playing a good role in supporting and limiting.

[0037] Specifically, the first linkage assembly 34 further includes a first intermittent gear 354 fixedly sleeved on the fourth rotating shaft, a second intermittent gear 355 fixedly sleeved on the fifth rotating shaft, a guide post 356 with one end fixedly provided on the bottom plate, a lifting plate 357 movably sleeved on the guide post, a chute 358 provided on the lifting plate, a first telescopic rod 359 with one end fixedly provided on the fourth rotating shaft, a second telescopic rod 360 with one end fixedly provided on the fifth rotating shaft, a third connecting shaft 361 with one end movably provided in the chute and the other end rotatably provided on the other end of the first telescopic rod, and a fourth connecting shaft 362 with one end movably provided in the chute and the other end rotatably provided on the other end of the second telescopic rod; the first intermittent gear and the second intermittent gear are meshed, and the first telescopic rod and the second telescopic rod are symmetrically arranged; when driving the lifting plate to rise, through the arrangement of the third connecting shaft and the fourth connecting shaft, the first telescopic rod and the second telescopic rod rotate relatively and automatically extend and contract themselves, so that the third connecting shaft and the fourth connecting shaft move relatively in the chute, the fourth rotating shaft and the fifth rotating shaft rotate, and the first intermittent gear and the second intermittent gear rotate relatively. Through the two, the fifth rotating shaft and the fourth rotating shaft rotate synchronously, and interference with the eighteenth rotating rod and the nineteenth rotating rod is avoided to affect the transmission. After the upper end surfaces of the middle seat cushion, the left seat cushion and the right seat cushion are flush, the driving of the lifting plate is stopped. At this time, the included angle formed by the first telescopic rod and the second telescopic rod faces downward, so that a good supporting effect can be achieved. In summary, through the above transmission, a good labor-saving effect, a supporting effect and good synchronism can be achieved.

[0038] Specifically, the fixing component includes a lifting frame 391 movably arranged on the bottom plate, a jack 392 arranged on the bottom plate, a plug rod 393 with one end movably penetrating through the lifting frame, and a third spring 394 sleeved on the plug rod and fixed on the lifting frame and the other end of the plug rod respectively. The lifting frame is fixedly connected with the lifting plate. Driving the lifting frame to move drives the movement of the lifting plate and simultaneously drives the movement of the plug rod. When the plug rod coincides with the jack, the plug rod is inserted into the jack through the setting of the third spring to complete the fixation of the lifting frame, thereby completing the fixation of the lifting plate, and finally completing the fixation work of the left seat cushion, the right seat cushion and the middle seat cushion. The fixation is convenient and fast. Pull the plug rod to move the plug rod out of the jack, and then drive the lifting frame to descend, finally resetting the left seat cushion, the right seat cushion and the middle seat cushion.

[0039] Specifically, the seat cushion device 3 further includes a limit post 36 with one end fixedly arranged on the middle seat cushion and the other end movably arranged on the bottom plate, a first limit ring 37 fixedly sleeved on the limit post, and a second limit ring 38 located below it. When the middle seat cushion rises, the rising distance of the middle seat cushion is controlled through the setting of the second limit ring, and the descending distance of the middle seat cushion is controlled through the setting of the first limit ring. At the same time, the second limit ring and the first limit ring can also support the middle seat cushion again. Since the middle seat cushion is also related to the left seat cushion and the right seat cushion, it can support the left seat cushion and the right seat cushion. Because when the upper end surfaces of the middle seat cushion, the left seat cushion and the right seat cushion are flush, the eighteenth rotating rod and the nineteenth rotating rod form a reverse included angle, and the tenth rotating rod and the eleventh rotating rod are in the same direction and form a reverse included angle. Therefore, when the rider sits on the left seat cushion and the right seat cushion, a force that makes the left seat cushion and the right seat cushion move relatively away from each other can be given, that is, an upward force is generated on the middle seat cushion, so that the second limit ring can play a supporting role.

[0040] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0041] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only includes an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An electric vehicle seat adjustment mechanism, characterized in that: The electric vehicle comprises a fixed seat (1), a bottom plate (2) is arranged above the fixed seat, a cushion device (3) with adjustable width is arranged on the bottom plate, the bottom plate and the fixed seat are connected via an adjustment device (4), the adjustment device is used to adjust the inclination angle and height of the bottom plate, and the fixed seat is fixedly mounted on the electric vehicle; the adjustment device (4) comprises a first rotating shaft (41) rotatably arranged on the bottom plate, a first rotating rod (42) and a second rotating rod (43) with one end rotatably sleeved on the first rotating shaft and the other end rotatably arranged on the fixed seat, a first limiting block (44) fixedly arranged on the fixed seat, a first driving assembly (45) and a second driving assembly located at both ends of the bottom plate and respectively used to drive the two ends of the bottom plate to rise and fall. (46); The first driving assembly (45) comprises a second rotating shaft (451) rotatably arranged on a fixed seat, two third rotating rods (452) arranged in parallel and fixedly sleeved on the second rotating shaft at one end, a third rotating shaft (453) parallel to the second rotating shaft and rotatably arranged on the other ends of the two third rotating rods at both ends, a fourth rotating rod (454) rotatably arranged on the bottom plate at one end and rotatably sleeved on the third rotating shaft at the other end, a rotating element (455) arranged at one end of the second rotating shaft and used to drive the second rotating shaft to rotate, a second limiting block (456) fixedly arranged at one end of the fixed seat, and a first making way groove (457) arranged on the bottom plate for making way for the second limiting block, wherein the second limiting block is used to limit the third rotating shaft; The rotating element (455) comprises a fifth rotating rod (4551) fixedly sleeved on the second rotating shaft, a base (4552) located at one side of the second rotating shaft and fixedly mounted on the fixed seat, a first rotating block (4553) rotatably mounted on the base, a second rotating block (4554) rotatably mounted on one end of the fifth rotating rod, a screw (4555) rotatably mounted on the second rotating block at one end and movably passing through the first rotating block at the other end, a threaded block (4556) sleeved on the screw, a sixth rotating rod (4557) rotatably mounted on the threaded block and the other end of the fifth rotating rod at two ends, and a motor (4569) fixedly mounted on the second rotating block and used to drive the screw to rotate; The rotating element (455) further includes an extension shaft (4558) with one end fixedly arranged on the first rotating block, a seventh rotating rod (4559) with one end fixedly sleeved on the extension shaft, a fixing plate (4560) rotatably sleeved on the extension shaft and fixedly arranged on the base, an eighth rotating rod (4561) located between the fixing plate and the seventh rotating rod and with one end rotatably sleeved on the extension shaft, a ninth rotating rod (4562) located between the eighth rotating rod and the fixing plate and rotatably arranged on the eighth rotating rod, a first slider (4563) movably arranged on the other end of the seventh rotating rod, a first connecting shaft (4564) with one end rotatably arranged on one end of the ninth rotating rod and the other end rotatably arranged on the first slider, a second slider (4565) movably arranged on the fixing plate, a second connecting shaft (4566) with one end rotatably arranged on the other end of the ninth rotating rod and the other end rotatably arranged on the second slider, a first spring (4567) with both ends respectively fixedly arranged on the first slider and the seventh rotating rod, and a second spring (4568) with both ends respectively fixedly arranged on the second slider and the fixing plate.

2. The electric vehicle seat cushion adjusting mechanism according to claim 1, characterized in that: The seat cushion device (3) includes a left seat cushion (31) and a right seat cushion (32) above the bottom plate, a middle seat cushion (33) below the middle of the left seat cushion and the right seat cushion, a first linkage assembly (34) and a second linkage assembly (35) for driving the relative movement of the left seat cushion and the right seat cushion and the lifting of the middle seat cushion, and a fixing assembly (39) arranged on the bottom plate for locking the first linkage assembly and the second linkage assembly simultaneously. The left seat cushion is arranged flush with the right seat cushion; the first linkage assembly and the second linkage assembly are symmetrically arranged and have the same structure.

3. The adjustable mechanism for the seat cushion of an electric vehicle according to claim 2, characterized in that: The first linkage assembly (34) includes a fourth rotating shaft (341) and a fifth rotating shaft (342) rotatably arranged on the bottom plate, a tenth rotating rod (343) with one end rotatably arranged on the left seat cushion and the other end fixedly sleeved on the fourth rotating shaft, an eleventh rotating rod (344) with one end rotatably arranged on the right seat cushion and the other end fixedly sleeved on the fifth rotating shaft, a twelfth rotating rod (345) with one end fixedly sleeved on the fourth rotating shaft, a thirteenth rotating rod (346) with both ends respectively rotatably arranged on the other end of the twelfth rotating rod and the middle seat cushion, a fourteenth rotating rod (347) with one end fixedly sleeved on the fifth rotating shaft, and a fifteenth rotating rod (348) with both ends respectively rotatably arranged on the other end of the fourteenth rotating rod and the middle seat cushion. The eleventh rotating rod and the tenth rotating rod are symmetrically arranged, the twelfth rotating rod and the fourteenth rotating rod are symmetrically arranged, and the thirteenth rotating rod and the fifteenth rotating rod are symmetrically arranged.

4. The electric vehicle seat cushion adjusting mechanism according to claim 2, characterized in that: The first linkage assembly (34) further includes a second relief groove (349) provided on the middle seat cushion, a sixteenth rotating rod (350) with one end rotatably provided on the left seat cushion and the other end rotatably provided in the second relief groove, a seventeenth rotating rod (351) with one end rotatably provided on the right seat cushion and the other end rotatably provided in the second relief groove, an eighteenth rotating rod (352) with both ends rotatably provided on the bottom plate and the left seat cushion, and a nineteenth rotating rod (353) with both ends rotatably provided on the bottom plate and the right seat cushion; the sixteenth rotating rod and the seventeenth rotating rod are symmetrically arranged, the eighteenth rotating rod and the nineteenth rotating rod are symmetrically arranged, the eighteenth rotating rod is parallel to the tenth rotating rod, and the nineteenth rotating rod is parallel to the eleventh rotating rod.

5. The electric vehicle seat cushion adjusting mechanism according to claim 3, characterized in that: The first linkage assembly (34) further includes a first intermittent gear (354) fixedly sleeved on the fourth rotating shaft, a second intermittent gear (355) fixedly sleeved on the fifth rotating shaft, a guide post (356) with one end fixedly provided on the bottom plate, a lifting plate (357) movably sleeved on the guide post, a chute (358) provided on the lifting plate, a first telescopic rod (359) with one end fixedly provided on the fourth rotating shaft, a second telescopic rod (360) with one end fixedly provided on the fifth rotating shaft, a third connecting shaft (361) with one end movably provided in the chute and the other end rotatably provided on the other end of the first telescopic rod, and a fourth connecting shaft (362) with one end movably provided in the chute and the other end rotatably provided on the other end of the second telescopic rod; the first intermittent gear and the second intermittent gear are meshed, and the first telescopic rod and the second telescopic rod are symmetrically arranged.

6. The electric vehicle seat cushion adjusting mechanism according to claim 5, characterized in that: The fixing assembly includes a lifting frame (391) movably provided on the bottom plate, a jack (392) provided on the bottom plate, a plug rod (393) with one end movably penetrating through the lifting frame, and a third spring (394) sleeved on the plug rod and fixedly provided on the lifting frame and the other end of the plug rod respectively, and the lifting frame is fixedly connected to the lifting plate.

7. The electric vehicle seat cushion adjusting mechanism according to claim 2, characterized in that: The seat cushion device (3) further includes a limit post (36) with one end fixedly provided on the middle seat cushion and the other end movably provided on the bottom plate, a first limit ring (37) fixedly sleeved on the limit post, and a second limit ring (38) located below it.

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