Seat adjusting mechanism, seat and vehicle

Abstract

The invention discloses a seat adjusting mechanism, a seat and a vehicle. The seat adjusting mechanism comprises a sliding rail, a seat cushion frame, a driving structure and a connecting rod support, the driving structure is arranged on the sliding rail, one end of the connecting rod support is movably connected with the driving structure, the other end of the connecting rod support is movably connected with the seat cushion frame, and the driving structure drives the connecting rod support to move so as to drive the seat cushion frame to move. The driving structure is further used for locking the connecting rod support. According to the seat adjusting mechanism, the driving structure drives the connecting rod support to move so as to drive the seat cushion frame to move, the driving structure is further used for locking the connecting rod support, the locking function of the connecting rod support is integrated to the driving structure, and the number of parts of the seat adjusting mechanism is reduced; the structure complexity of the seat adjusting mechanism is reduced, the structure redundancy is reduced, the space occupation of the seat adjusting mechanism is reduced, and meanwhile, the stability and reliability of the connecting rod support in the moving process and the seat in the using process are improved.

Description

Technical Field

[0001] The present application relates to the technical field of seats, and in particular to a seat adjustment mechanism, a seat and a vehicle. Background Art

[0002] In the related art, the seat adjustment mechanism includes a driving structure and a connecting rod bracket. The driving structure is used to drive the connecting rod bracket to move, and there is also a locking device on the seat adjustment mechanism for locking the connecting rod bracket. The structure of the seat adjustment mechanism is too complicated and redundant. Summary of the Invention

[0003] The present application aims to solve at least one of the above-mentioned technical problems in the prior art to a certain extent. To this end, the present application proposes a seat adjustment mechanism that simplifies the number of components of the seat adjustment mechanism and reduces structural redundancy.

[0004] The present application also proposes a seat having the above-mentioned seat adjustment mechanism.

[0005] The present application also proposes a vehicle having the above-mentioned seat.

[0006] According to an embodiment of the present application, the seat adjustment mechanism includes a slide rail, a seat cushion frame, a drive structure and a connecting rod bracket, the drive structure is arranged on the slide rail, one end of the connecting rod bracket is movably connected to the drive structure, and the other end of the connecting rod bracket is movably connected to the seat cushion frame, the drive structure drives the connecting rod bracket to move to drive the seat cushion frame to move, and the drive structure is also used to lock the connecting rod bracket.

[0007] According to the seat adjustment mechanism of the embodiment of the present application, the driving structure drives the connecting rod bracket to move to drive the seat cushion frame to move, and the driving structure is also used to lock the connecting rod bracket. The locking function of the connecting rod bracket is integrated into the driving structure, which reduces the number of components of the seat adjustment mechanism, reduces the structural complexity of the seat adjustment mechanism, reduces structural redundancy, and reduces the space occupied by the seat adjustment mechanism. At the same time, it also improves the stability and reliability of the connecting rod bracket during the movement process and the use of the seat.

[0008] According to some embodiments of the present application, the driving structure includes a sliding member, a driving bracket and a driving member, the sliding member is arranged on the sliding rail, the driving bracket is installed on the sliding member, and the driving member is at least partially installed on the driving bracket, wherein the driving member drives the sliding member to slide along the sliding rail, and / or the driving member drives the connecting rod bracket to rotate or the driving member locks the connecting rod bracket.

[0009] According to some embodiments of the present application, the driving member includes a driving motor and a transmission box, the driving motor is installed on the driving bracket, the transmission box is installed on the sliding member, the driving motor is connected to the transmission box by transmission, and the connecting rod bracket is connected to the transmission box by transmission.

[0010] According to some embodiments of the present application, the drive motor is a motor with a self-locking function.

[0011] According to some embodiments of the present application, the slide rail has a rack portion, the transmission box includes an input shaft, an output shaft and a transmission gear, the input shaft is connected to the drive motor, the output shaft is connected to the connecting rod bracket, the transmission gear is connected to the input shaft, and the transmission gear is engaged with the rack portion for transmission.

[0012] According to some embodiments of the present application, the transmission case further includes a clutch installed on one of the input shaft and the output shaft and selectively connecting or disconnecting the other of the input shaft and the output shaft.

[0013] According to some embodiments of the present application, the connecting rod bracket includes a bracket rod and a connecting rod, the bracket rod is movably connected to the seat cushion frame, the connecting rod is connected to the bracket rod, and the connecting rod is connected to the output shaft.

[0014] According to some embodiments of the present application, the seat adjustment mechanism also includes a drive rod, which includes a first rod segment and a second rod segment connected to each other, the first rod segment is connected to the connecting rod, and the second rod segment is connected to the output shaft, and when the output shaft rotates, it is suitable for driving the connecting rod to swing through the drive rod.

[0015] According to some embodiments of the present application, one of the second rod segment and the output shaft has an external spline, and the other has a spline groove, and the external spline cooperates with the spline groove.

[0016] According to some embodiments of the present application, the transmission box includes a box body, which is provided with a box body hole. One of the output shaft and the second rod segment is passed through the box body hole and has an interference fit with the box body hole, so as to lock the connecting rod bracket through the friction force provided by the box body hole when the input shaft and the output shaft are disconnected.

[0017] According to some embodiments of the present application, the sliding member includes a support frame and a sliding frame, the sliding frame is slidably arranged on the slide rail, the support frame is installed on the sliding frame, the first rod segment passes through the support frame and the first rod segment can rotate relative to the support frame, and the transmission box is installed on the sliding frame.

[0018] According to some embodiments of the present application, a support hole is provided on the support frame, and the first rod segment is passed through the support hole and interference fits with the support hole, so that the connecting rod bracket is locked by the friction force between the first rod segment and the support hole when the input shaft and the output shaft are disconnected.

[0019] According to some embodiments of the present application, the support frame is provided with a first limiting structure and a second limiting structure, the first limiting structure is used to limit the first extreme position of the connecting rod bracket, and the second limiting structure is used to limit the second extreme position of the connecting rod bracket.

[0020] According to some embodiments of the present application, the slide rail includes a slide rail body and a guide rod, the sliding member is slidably engaged with the slide rail body, the guide rod is fixed on the slide rail body, and the rack portion is arranged on the guide rod.

[0021] According to some embodiments of the present application, the transmission box further includes a box body, the guide rod passes through the box body, the transmission gear is arranged in the box body, and the guide rod is engaged with the transmission gear.

[0022] According to some embodiments of the present application, there are at least two driving structures, and the at least two driving structures can selectively drive at least two connecting rod brackets to move or lock the connecting rod brackets.

[0023] According to some embodiments of the present application, there are two slide rails, and one end of any one of the driving structures is disposed on one of the slide rails, and the other end is disposed on the other slide rail.

[0024] According to some embodiments of the present application, the transmission box is respectively provided on both sides of the drive motor, and the driving member also includes a first transmission shaft and a second transmission shaft. The drive motor drives the first transmission shaft and the second transmission shaft to rotate, and the first transmission shaft is suitable for connecting to the transmission box on one side, and the second transmission shaft is suitable for connecting to the transmission box on the other side.

[0025] According to some embodiments of the present application, the first transmission shaft and the second transmission shaft are coaxially arranged.

[0026] According to some embodiments of the present application, the seat adjustment mechanism also includes a torsion bar, which connects the connecting rod bracket and the seat cushion frame. The torsion bar is used to apply a force to the connecting rod bracket, and the force drives the connecting rod bracket to swing so that the lower end of the connecting rod bracket moves toward another swinging mechanism.

[0027] According to some embodiments of the present application, the torsion bar includes a torsion bar body, a first torsion bar section and a second torsion bar section, the first torsion bar section is connected to one end of the torsion bar body, the torsion bar body at least partially extends into the support rod, the first torsion bar section is fixedly connected to the support rod, the second torsion bar section is connected to the other end of the torsion bar body, and the second torsion bar section is connected to the seat cushion frame.

[0028] According to some embodiments of the present application, the first section of the torsion bar is a U-shaped structure and includes a first arm, a second arm and a connecting arm, the connecting arm connects the first arm and the second arm, the first arm is connected to the one end of the torsion bar body, the inner wall of the bracket rod is provided with an embossed limiting section, and the first arm and the second arm stop at the embossed limiting section.

[0029] A seat according to another embodiment of the present application includes the above-mentioned seat adjustment mechanism.

[0030] According to the seat of another embodiment of the present application, its seat adjustment mechanism drives the connecting rod bracket to move through the driving structure to drive the seat cushion frame to move, and the driving structure is also used to lock the connecting rod bracket. The locking function of the connecting rod bracket is integrated into the driving structure, which reduces the number of components of the seat adjustment mechanism, reduces the structural complexity of the seat adjustment mechanism, reduces structural redundancy, and reduces the space occupied by the seat adjustment mechanism. At the same time, it also improves the stability and reliability of the connecting rod bracket during the movement process and the use of the seat.

[0031] A vehicle according to yet another embodiment of the present application includes the above-mentioned seat.

[0032] According to a vehicle in another embodiment of the present application, the seat adjustment mechanism of its seat drives the connecting rod bracket to move through the driving structure to drive the seat cushion frame to move, and the driving structure is also used to lock the connecting rod bracket. The locking function of the connecting rod bracket is integrated into the driving structure, which reduces the number of components of the seat adjustment mechanism, reduces the structural complexity of the seat adjustment mechanism, reduces structural redundancy, reduces the space occupied by the seat adjustment mechanism, and at the same time, improves the stability and reliability of the connecting rod bracket during the movement process and the use of the seat.

[0033] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a perspective schematic diagram of a seat adjustment mechanism according to an embodiment of the present application;

[0035] Figure 2 is an exploded view of a seat adjustment mechanism according to an embodiment of the present application;

[0036] Figure 3 is a perspective schematic diagram of a seat cushion frame according to an embodiment of the present application;

[0037] Figure 4 is a top view of the drive structure and the slide rail according to an embodiment of the present application;

[0038] Figure 5 is an exploded diagram of a driving structure according to an embodiment of the present application;

[0039] Figure 6 is a perspective schematic diagram of a transmission box according to an embodiment of the present application;

[0040] Figure 7 is a perspective schematic diagram of a connecting rod bracket according to an embodiment of the present application;

[0041] Figure 8 is a schematic diagram of an initial state of a seat adjustment mechanism according to an embodiment of the present application;

[0042] Figure 9 is a schematic diagram of the overall elevation of the seat adjustment mechanism according to an embodiment of the present application;

[0043] Figure 10 is a schematic diagram of the overall lowering of the seat adjustment mechanism according to an embodiment of the present application;

[0044] Figure 11 is a schematic diagram of a seat adjustment mechanism that is raised in front and lowered in the rear according to an embodiment of the present application;

[0045] Figure 12 is a schematic diagram of a seat adjustment mechanism that is raised at the rear and lowered at the front according to an embodiment of the present application;

[0046] Figure 13 is a perspective schematic diagram of a torsion bar according to an embodiment of the present application;

[0047] Figure 14 1 is a schematic diagram of the assembly of the drive structure, the drive rod and the support rod according to an embodiment of the present application;

[0048] Figure 15 is a partial enlarged view of the driving structure, driving rod and support rod according to an embodiment of the present application;

[0049] Figure 16 is a perspective schematic diagram of a driving rod according to an embodiment of the present application;

[0050] Figure 17 is a schematic diagram of a seat according to an embodiment of the present application;

[0051] Figure 18 is a schematic diagram of a vehicle according to an embodiment of the present application.

[0052] Reference numerals:

[0053] Vehicle 1000, seat 100, seat adjustment mechanism 10, slide rail 1, slide rail body 11, guide rod 12, drive structure 21, first transmission shaft 211, second transmission shaft 212, drive motor 213, drive bracket 214, transmission box 215, input shaft 2151, output shaft 2152, clutch 2153, sliding frame 216, support frame 217, first limiting structure 2171, second limiting structure 2172, connecting rod bracket 22, connecting rod 221, bracket rod 222, seat cushion frame 4, seat cushion first side plate 41, seat cushion second side plate 42, seat cushion connecting plate, torsion bar 5, torsion bar body 51, torsion bar first section 52, first support arm 521, second support arm 522, connecting arm 523, torsion bar second section 53, drive rod 6, first rod section 61, second rod section 62, intermediate rod section 63. DETAILED DESCRIPTION

[0054] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0055] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0056] The following combination Figures 1-18 A seat adjustment mechanism 10 , a seat 100 having the seat adjustment mechanism 10 , and a vehicle 1000 having the seat 100 according to an embodiment of the present application will be described in detail.

[0057] See Figure 1 、 Figure 2 、 Figure 4 、 Figure 7 As shown, the seat adjustment mechanism 10 according to the embodiment of the present application may include a slide rail 1, a seat cushion frame 4, a driving structure 21 and a connecting rod bracket 22. The driving structure 21 is arranged on the slide rail 1, one end of the connecting rod bracket 22 is movably connected to the driving structure 21, and the other end of the connecting rod bracket 22 is movably connected to the seat cushion frame 4. The driving structure 21 drives the connecting rod bracket 22 to move to drive the seat cushion frame 4 to move, and the driving structure 21 is also used to lock the connecting rod bracket 22.

[0058] Specifically, one end of the connecting rod bracket 22 is connected to the drive structure 21, which drives the connecting rod bracket 22 to move. The other end of the connecting rod bracket 22 is connected to the seat cushion frame 4. During the movement of the connecting rod bracket 22, the other end of the connecting rod bracket 22 also drives the seat cushion frame 4 to move, realizing multi-dimensional adjustment of the seat cushion frame 4. The drive structure 21 can lock the connecting rod bracket 22, so the seat adjustment mechanism 10 will not cause the seat cushion frame 4 to move due to slight vibration, shaking, or load, thus ensuring the safety and comfort of the user.

[0059] Combining the driving structure 21 driving the movement of the connecting rod bracket 22 with the driving structure 21 locking the connecting rod bracket 22, and integrating the locking function of the connecting rod bracket 22 into the driving structure 21, not only reduces the number of components of the seat adjustment mechanism 10, reduces the structural complexity of the seat adjustment mechanism 10 and reduces structural redundancy, reduces the space occupied by the seat adjustment mechanism 10, but also makes the operation of the seat adjustment mechanism 10 more precise and controllable. During the adjustment process, the driving structure 21 can accurately drive the connecting rod bracket 22 to drive the seat cushion frame 4 to move to the desired position; and the locking function ensures that the seat cushion frame 4 can remain in the set position during use of the seat 100. Taking the locking function as an example, the locking function ensures that the seat cushion frame 4 can remain at the set height position during use of the seat 100. The locking function improves the stability of the seat cushion frame 4 during use of the seat 100, reduces component wear and damage caused by accidental movement of the seat cushion frame 4 in the height direction, thereby extending the service life of the seat 100 and improving the overall reliability of the seat 100.

[0060] In some embodiments, see Figure 3 As shown, the seat cushion frame 4 is rigidly connected and consists of a first seat cushion side panel 41, a second seat cushion side panel 42, and a seat cushion connecting plate 43. The first seat cushion side panel 41 and the second seat cushion side panel 42 can be spaced apart in the left-right direction of the seat 100. One end of the seat cushion connecting plate 43 is connected to the first seat cushion side panel 41, and the other end is connected to the second seat cushion side panel 42. One end of the connecting rod bracket 22 (for example, the bracket rod 222 of the connecting rod bracket 22) is mounted on the first seat cushion side panel 41, and the other end of the connecting rod bracket 22 is mounted on the second seat cushion side panel 42.

[0061] It is understandable that the left-right direction of the seat 100 is consistent with the left-right direction of the vehicle 1000 , that is, the Y direction, the width direction of the vehicle 1000 .

[0062] In the related art, the seat adjustment mechanism includes a driving structure and a connecting rod bracket. The driving structure is used to drive the connecting rod bracket to move, and there is also a locking device on the seat adjustment mechanism for locking the connecting rod bracket. The structure of the seat adjustment mechanism is too complicated and redundant.

[0063] According to the seat adjustment mechanism 10 of the embodiment of the present application, the driving structure 21 drives the connecting rod bracket 22 to move to drive the seat cushion frame 4 to move, and the driving structure 21 is also used to lock the connecting rod bracket 22. The locking function of the connecting rod bracket 22 is integrated into the driving structure 21, which reduces the number of components of the seat adjustment mechanism 10, reduces the structural complexity of the seat adjustment mechanism 10, reduces structural redundancy, and reduces the space occupied by the seat adjustment mechanism 10. At the same time, it also improves the stability and reliability of the connecting rod bracket 22 during the movement process and the seat 100 during use.

[0064] In some embodiments of this application, see Figure 2-Figure 5 As shown, the driving structure 21 includes a sliding member, a driving bracket 214 and a driving member, the sliding member is arranged on the slide rail 1, the driving bracket 214 is installed on the sliding member, and the driving member is at least partially installed on the driving bracket 214, wherein the driving member drives the sliding member to slide along the slide rail 1, and the driving member drives the connecting rod bracket 22 to rotate or the driving member locks the connecting rod bracket 22.

[0065] Specifically, the driver can selectively drive the sliding member to slide along the slide rail 1, making the adjustment operation of the seat adjustment mechanism 10 precise and controllable. The driver can precisely control the movement distance of the sliding member on the slide rail 1. The seat cushion frame 4 is indirectly connected to the driver structure 21 via the connecting rod bracket 22. Therefore, the position of the sliding member changes, allowing users to make more personalized adjustments to the seat cushion frame 4 according to their own needs, thereby improving the accuracy of the seat adjustment mechanism 10 in adjusting the position of the seat cushion frame 4. By driving the connecting rod bracket 22 to rotate by the driver, combined with the movement of the sliding member on the slide rail 1, the seat cushion frame 4 can be easily adjusted in multiple dimensions in the horizontal and vertical directions, increasing the diversity and functionality of the seat cushion frame 4 position. By locking the connecting rod bracket 22 by the driver, the seat cushion frame 4 can be locked in the height direction.

[0066] In some embodiments, the driving member drives the sliding member to slide along the sliding rail 1 .

[0067] In some embodiments, the driving member drives the connecting rod bracket 22 to rotate or the driving member locks the connecting rod bracket 22 .

[0068] In some embodiments of this application, see Figure 2-Figure 6As shown, the drive element includes a drive motor 213 and a transmission box 215. The drive motor 213 is mounted on a drive bracket 214, and the transmission box 215 is mounted on a sliding member. The drive motor 213 is in transmission connection with the transmission box 215, and the connecting rod bracket 22 is in transmission connection with the transmission box 215. Specifically, the drive motor 213 and the transmission box 215 transmit power to each other, and the transmission box 215 can accurately change the speed and torque of the power output by the drive motor 213. For example, by setting different gear combinations or transmission ratios, the transmission box 215 can convert the high-speed, low-torque rotation of the drive motor 213 into a low-speed, high-torque output suitable for the seat adjustment mechanism 10, thereby achieving precise control of the speed and force of the seat adjustment mechanism 10 and making the adjustment more stable and precise. Of course, in some cases, it is not ruled out that by setting different gear combinations or transmission ratios on the transmission box 215, the transmission box 215 can convert the low-speed, high-torque rotation of the drive motor 213 into a high-speed, low-torque output suitable for the seat adjustment mechanism 10.

[0069] In some embodiments of the present application, see Figure 1 、 Figure 2 、 Figure 4 、 Figure 14 As shown, the drive motor 213 is a motor with a self-locking function. Specifically, during use of the seat 100, even if it is slightly vibrated or shaken by external forces, or the user's load on the seat cushion frame 4 changes, the self-locking function of the drive motor 213 prevents its own rotation when in the self-locking state, thereby preventing the connecting rod bracket 22 from moving, ensuring that the seat cushion frame 4 is firmly positioned and avoiding accidental displacement. This improves the stability of the seat 100 and provides the user with a safe and reliable riding environment.

[0070] In some embodiments of the present application, see Figure 4 、 Figure 6 、 Figure 14As shown, the slide rail 1 has a rack portion, and the transmission box 215 includes an input shaft 2151, an output shaft 2152, and a transmission gear. The input shaft 2151 is connected to the drive motor 213, and the output shaft 2152 is connected to the connecting rod bracket 22. The transmission gear is connected to the input shaft 2151 for transmission, and the transmission gear meshes with the rack portion for transmission. Specifically, the drive motor 213 is connected to the input shaft 2151, and can efficiently transmit the rotational power of the drive motor 213 to the input shaft 2151. The transmission gear can be mounted on the input shaft 2151. When the input shaft 2151 rotates, the transmission gear rotates. The transmission gear meshes with the rack portion of the slide rail 1 for transmission. In this way, at least a portion of the driving force of the drive motor 213 is converted into linear motion of the drive structure 21 along the length direction of the slide rail 1, thereby driving the seat cushion frame 4 to move through the connecting rod bracket 22. Output shaft 2152 is connected to connecting rod bracket 22, converting a portion of the driving force of drive motor 213 into rotation of connecting rod bracket 22. Rotation of connecting rod bracket 22 drives movement of seat cushion frame 4 (primarily for height adjustment of seat cushion frame 4). This enables multi-dimensional adjustment of seat 100 and ensures stable and reliable power transmission.

[0071] In some embodiments of the present application, see Figure 14 As shown, the transmission case 215 further includes a clutch 2153, which is mounted on one of the input shaft 2151 and the output shaft 2152 and selectively connects or disconnects the other of the input shaft 2151 and the output shaft 2152. In other words, the clutch 2153 is used to connect or disconnect the input shaft 2151 and the output shaft 2152. Specifically, when the clutch 2153 disconnects the input shaft 2151 and the output shaft 2152, the driving force of the drive motor 213 is transmitted to the input shaft 2151 and is no longer transmitted to the output shaft 2152. At this time, the drive motor 213 can be used to drive the seat frame 4 to move along the length of the slide rail 1, preventing the seat frame 4 from being adjusted in height, thereby enabling adjustment of the overall forward or backward translation of the seat 100. When the clutch 2153 connects the input shaft 2151 and the output shaft 2152, the drive motor 213 can drive the output shaft 2152 to rotate through the input shaft 2151. The seat frame 4 moves along the length direction of the slide rail 1 while the height of the seat frame 4 is adjusted to meet the different operating needs of users and increase the flexibility and reliability of the adjustment of the seat 100.

[0072] In some embodiments of the present application, see Figure 1 、 Figure 2 、 Figure 7As shown, the connecting rod bracket 22 includes a bracket rod 222 and a connecting rod 221. The bracket rod 222 is movably connected to the seat cushion frame 4, and the connecting rod 221 is connected to the bracket rod 222. The connecting rod 221 is connected to the output shaft 2152. When the output shaft 2152 rotates, it can drive the connecting rod 221 to rotate. Specifically, the connecting rod 221 is driven by the transmission box 215, and the bracket rod 222 is movably connected to the seat cushion frame 4. When the clutch 2153 connects the input shaft 2151 and the output shaft 2152, the power of the drive motor 213 can be transmitted to the connecting rod 221 through the transmission box 215, and effectively transmitted to the seat cushion frame 4 through the bracket rod 222. The transmission box 215 drives the connecting rod 221 to move, and the connecting rod 221 drives the bracket rod 222 to move, so that the seat cushion frame 4 can be quickly and accurately adjusted to the user's desired position, thereby improving the response speed and adjustment accuracy of the seat adjustment mechanism 10.

[0073] In some embodiments, the support rod 222 and the seat cushion frame 4 are assembled through a tube expansion process.

[0074] In other embodiments, the support rod 222 and the seat cushion frame 4 are assembled by fasteners (such as bolts, rivets, etc.).

[0075] In some embodiments of the present application, see Figure 2 、 Figure 5 、 Figure 14-16 As shown, the seat adjustment mechanism 10 also includes a drive rod 6, which includes a first rod segment 61 and a second rod segment 62. The first rod segment 61 and the second rod segment 62 are connected. The first rod segment 61 is connected to the connecting rod 221, and the second rod segment 62 is connected to the output shaft 2152. When the output shaft 2152 rotates, it is suitable for driving the connecting rod 221 to swing through the drive rod 6.

[0076] Specifically, the drive rod 6 serves as a bridge connecting the transmission case 215 and the connecting rod 221, efficiently and stably transmitting power from the output shaft 2152 in the transmission case 215 to the connecting rod 221. The first rod segment 61 is connected to the connecting rod 221, while the second rod segment 62 is connected to the output shaft 2152. This reduces energy loss and delay during power transmission, ensuring that the seat cushion frame 4 responds each time the drive motor 213 activates and rotates the output shaft 2152, thereby improving adjustment efficiency. When the clutch 2153 disconnects the input shaft 2151 and the output shaft 2152, the driving force of the drive motor 213 is transmitted to the input shaft 2151 and is no longer further transmitted to the output shaft 2152.

[0077] In some embodiments, the clutch 2153 connects the input shaft 2151 and the output shaft 2152 . When the driving structure 21 moves along the slide rail 1 , the output shaft 2152 can swing the driving link 221 through the driving rod 6 .

[0078] In some embodiments, the clutch 2153 disconnects the input shaft 2151 and the output shaft 2152 . When the driving structure 21 moves along the slide rail 1 , the output shaft 2152 can lock the driving rod 6 so that the connecting rod 221 cannot swing.

[0079] In some embodiments of this application, see Figure 1 、 Figure 2 、 Figure 6 、 Figure 14-16 As shown, one of the second rod section 62 and the output shaft 2152 has an external spline, and the other has a spline groove, and the external spline cooperates with the spline groove. Specifically, for example Figure 2 As shown, the second rod segment 62 has internal splines, and the output shaft 2152 has external splines. The external splines closely mate with the spline grooves, enabling high torque transmission. When driving the seat adjustment mechanism 10, the power of the output shaft 2152 is efficiently transmitted to the second rod segment 62 of the drive rod 6 through the engagement of the external splines with the spline grooves. This in turn drives the rotation of the first rod segment 61 and the connecting rod 221, achieving adjustment of the seat cushion frame 4. This reduces energy loss during power transmission and ensures efficient operation of the seat adjustment mechanism 10.

[0080] In some embodiments of this application, see Figure 5 、 Figure 6 、 14 As shown, the transmission case 215 includes a housing with a housing hole. One of the output shaft 2152 and the second rod segment 62 extends through the housing hole and forms an interference fit therewith. When the input shaft 2151 and the output shaft 2152 are disconnected, the friction generated by the housing hole locks the connecting rod bracket 22. Specifically, when the input shaft 2151 and the output shaft 2152 are disconnected (e.g., by the clutch 2153), the interference fit between the output shaft 2152 and the housing hole generates friction. This friction effectively prevents rotation of the output shaft 2152 and the second rod segment 62, thereby locking the connecting rod bracket 22 and preventing displacement of the seat cushion frame 4 due to external forces (e.g., slight shaking). This provides an additional mechanical locking mechanism for the seat 100, enhancing its stability and safety.

[0081] In some embodiments, the output shaft 2152 passes through the box hole and has an interference fit with the box hole.

[0082] In other embodiments, the second rod segment 62 is inserted into the box hole and has an interference fit with the box hole.

[0083] For example, the second rod segment 62 is inserted into the housing hole and has an interference fit with the housing hole. When the clutch 2153 disconnects the input shaft 2151 and the output shaft 2152, the drive motor 213 drives the sliding member to move on the slide rail 1, thereby moving the seat cushion frame 4 along the length of the slide rail 1. At this time, the input shaft 2151 and the output shaft 2152 are disconnected, and the connecting rod bracket 22 is self-locked and locked due to the interference fit of the second rod segment 62 and the housing hole. The seat cushion frame 4 does not move in the height direction, and the seat cushion frame 4 can be adjusted forward or backward in translation as a whole.

[0084] In some embodiments, a bushing is provided on the housing hole, and one of the output shaft 2152 and the second rod segment 62 is passed through the bushing and has an interference fit with the bushing.

[0085] In the related art, the seat adjustment mechanism usually uses an angle adjustment piece to achieve the locking and limiting effect on the connecting rod bracket. However, in some embodiments of the present application, the angle adjustment piece is eliminated, and the clutch 2153 is disconnected from the input shaft 2151 and the output shaft 2152, and the locking and limiting of the connecting rod bracket 22 are achieved by relying on the friction force provided by the box hole, thereby simplifying the overall structure of the seat adjustment mechanism 10 and reducing the manufacturing and installation costs.

[0086] In some embodiments of the present application, see Figure 5 、 Figure 6 As shown, the sliding member includes a support frame 217 and a sliding frame 216. The sliding frame 216 is slidably mounted on the slide rail 1. The support frame 217 is mounted on the sliding frame 216. The first rod segment 61 passes through the support frame 217 and is rotatable relative to the support frame 217. The transmission box 215 is mounted on the sliding frame 216. Specifically, the sliding frame 216 is slidably mounted on the slide rail 1, allowing the sliding member to move along the slide rail 1, thereby changing the position of the seat cushion frame 4 (e.g., moving along the slide rail 1), thereby accommodating different driving or riding postures and improving comfort and convenience. The first rod segment 61 passes through the support frame 217 and is rotatable relative to the support frame 217 when driven to rotate. This provides more degrees of freedom for adjusting the seat cushion frame 4, allowing the seat cushion frame 4 to be adjusted in other ways (such as overall lifting, one-way tilting, etc.) through the rotation of the first rod segment 61, providing users with more options and increasing the diversity and functionality of the seat cushion frame 4.

[0087] In some embodiments of the present application, see Figure 4 、 Figure 5 、 Figure 14As shown, the support frame 217 is provided with a support hole, and the first rod segment 61 is inserted into the support hole and has an interference fit with the support hole. When the input shaft 2151 and the output shaft 2152 are disconnected, the friction between the first rod segment 61 and the support hole can lock the connecting rod bracket 22. Specifically, when the input shaft 2151 and the output shaft 2152 are disconnected (e.g., by the clutch 2153), the friction generated by the first rod segment 61 inserted into the support hole and having an interference fit with the support hole can effectively prevent the rotation of the drive rod 6, thereby locking the connecting rod bracket 22 and preventing the seat cushion frame 4 from being displaced by external forces (such as slight shaking). This provides an additional mechanical locking guarantee for the seat 100, enhancing the stability and safety of the seat 100.

[0088] In the related art, the seat adjustment mechanism usually uses an angle adjustment piece to achieve the locking and limiting effect on the connecting rod bracket. However, in some embodiments of the present application, the angle adjustment piece is eliminated, and the clutch 2153 is disconnected from the input shaft 2151 and the output shaft 2152, and the locking and limiting of the connecting rod bracket 22 are achieved by relying on the friction force between the first rod segment 61 and the support hole, thereby simplifying the overall structure of the seat adjustment mechanism 10 and reducing the manufacturing and installation costs.

[0089] In some other optional embodiments, referring to Figure 14 and Figure 16 The drive rod 6 further includes an intermediate rod segment 63, which connects the first rod segment 61 and the second rod segment 62. The intermediate rod segment 63 passes through the support frame 217 and is rotatable relative to the support frame 217. Specifically, the support frame 217 is provided with a support hole, through which the intermediate rod segment 63 passes. The intermediate rod segment 63 and the support hole have an interference fit. When the input shaft 2151 and the output shaft 2152 are disconnected, the friction between the intermediate rod segment 63 and the support hole locks the connecting rod bracket 22.

[0090] In some embodiments of the present application, see Figure 4 、 Figure 5 、 Figure 14 、 Figure 16As shown, the support frame 217 is provided with a first limiting structure 2171 and a second limiting structure 2172. The first limiting structure 2171 is used to limit the first limit position A of the connecting rod bracket 22, and the second limiting structure 2172 is used to limit the second limit position B of the connecting rod bracket 22. Specifically, the first limiting structure 2171 and the second limiting structure 2172 effectively prevent the connecting rod bracket 22 from exceeding the normal operating range during adjustment. When the user over-adjusts the seat cushion frame 4, the motion trajectory of the driving structure 21 is prevented from deviating, which could cause the adjustment function of the seat adjustment mechanism 10 to fail and become uncontrollable, affecting the normal use and safety of the seat 100. This avoids mechanical failures and safety hazards caused by over-adjustment. In the related art, limiting rods are added to limit the connecting rod bracket from exceeding the normal operating range. However, the present application eliminates the limiting rod design. By adding the first limiting structure 2171 and the second limiting structure 2172 to the support frame 217, the connecting rod bracket 22 is prevented from exceeding the normal operating range during adjustment, simplifying the structure of the seat adjustment mechanism 10 and saving costs.

[0091] For example, the first limiting structure 2171 can be a limiting protrusion, a limiting plate, a limiting edge, etc., and the second limiting structure 2172 can be a limiting protrusion, a limiting plate, a limiting edge, etc.

[0092] In some embodiments of the present application, see Figure 1 、 Figure 2 、 Figure 4 As shown, the slide rail 1 includes a slide rail body 11 and a guide rod 12. The sliding member slidably engages with the slide rail body 11. The guide rod 12 is fixed to the slide rail body 11, and the rack portion is disposed on the guide rod 12. Specifically, the guide rod 12 is fixed to the slide rail body 11, and the sliding member slidably engages with the slide rail body 11, providing precise guidance for the movement of the sliding member and the entire transmission box 215, ensuring smooth movement of the sliding member along the slide rail, preventing deviation or shaking, and improving the stability and accuracy of the seat adjustment mechanism 10.

[0093] In some embodiments of the present application, see Figure 1 、 Figure 2 、 Figure 4 、 Figure 14As shown, the transmission case 215 further includes a housing, through which the guide rod 12 passes. A transmission gear is disposed within the housing, with the guide rod 12 meshing with the transmission gear. Specifically, when the drive motor 213 rotates the transmission gear, the guide rod 12 meshes with the transmission gear, causing the sliding member to move along the length of the guide rod 12, thereby driving the seat frame 4 along the length of the guide rod 12, thereby achieving adjustment of the seat 100. The meshing of the guide rod 12 with the transmission gear provides precise guidance for the movement of the sliding member and the entire transmission case 215, ensuring smooth movement of the sliding member along the guide rail, preventing deviation or shaking, and improving the stability and accuracy of the seat adjustment mechanism 10.

[0094] The box body is provided with a box body guide hole, and the guide rod 12 is passed through the box body guide hole. Therefore, when the transmission box 215 moves, the guide rod 12 can guide the transmission box 215.

[0095] In some embodiments of this application, see Figure 1 、 Figure 2 、 Figure 4 As shown, there are at least two drive structures 21, and the at least two drive structures 21 can selectively drive the movement of at least two connecting rod brackets 22 or lock the connecting rod brackets 22. Specifically, when there are at least two drive structures 21, locking the connecting rod bracket 22 by one drive structure 21 will not affect the movement of the other drive structures 21, so that the seat adjustment mechanism 10 can raise or lower the seat cushion frame 4 on one side, providing more adjustment options for the seat cushion frame 4, allowing users to make more personalized adjustments to the seat adjustment mechanism 10 according to their own usage needs (such as body curves or sitting habits, etc.), thereby improving the versatility of the seat adjustment mechanism 10.

[0096] In some embodiments of the present application, when any driving structure 21 is in a non-moving state, the driving structure 21 locks the corresponding connecting rod bracket 22 .

[0097] Optionally, the number of the driving structures 21 may be two, three, four or more, for example Figure 4 As shown, there are two driving structures 21 , and the two driving structures 21 are spaced apart in the front-to-back direction of the seat 100 .

[0098] In existing technology, linkage mechanisms mostly use a fork arm or crank-connecting rod structure to adjust the position of the seat cushion frame. However, fork arm seat adjustment mechanisms have a high block value, requiring a high space requirement above the seat adjustment mechanism, resulting in a limited range of applicability. Furthermore, fork arm structures cannot achieve unilateral raising or lowering of the seat adjustment mechanism. Crank-connecting rod structures are more complex, requiring multiple drive mechanisms for control, and cannot adjust the fore-and-aft movement of the seat adjustment mechanism.

[0099] According to the seat adjustment mechanism 10 of the embodiment of the present application, by setting the connecting rod bracket 22, the Block value of the seat adjustment mechanism 10 is reduced, the application range of the seat adjustment mechanism 10 is increased, and various forms of adjustment schemes can be realized, including moving forward along the slide rail 1, moving backward along the slide rail 1, overall raising, overall lowering, unilateral raising (including front raising and rear raising) and unilateral lowering (including front lowering and rear lowering), providing users with more choices and increasing the diversity and functionality of the position of the seat cushion frame 4.

[0100] It should be noted that in this solution, “moving forward along the slide rail 1, moving backward along the slide rail 1, overall raising, overall lowering, unilateral raising (including front raising and rear raising) and unilateral lowering (including front lowering and rear lowering)” are explained in detail in the following text and will not be repeated here.

[0101] In some embodiments of this application, see Figure 1 、 Figure 2 As shown, there are two drive structures 21, which are spaced apart. Specifically, the two drive structures 21 provide double-sided support for the seat cushion frame 4, preventing the seat cushion frame 4 from shaking or deflecting during movement, and ensuring the stability of the seat adjustment mechanism 10.

[0102] In the prior art, the overall raising or lowering operation of a seat adjustment mechanism is achieved through two different types of motors (i.e., a screw adjustment and a gear adjustment), making it difficult to ensure synchronization of the overall raising or lowering. The seat adjustment mechanism 10 of the present embodiment, by providing an identical drive motor 213 on each drive member, ensures that each drive member operates in perfect sync during the overall raising or lowering operation of the seat cushion frame 4, thereby improving the synchronization of the seat adjustment mechanism 10.

[0103] In the prior art, seat adjustment mechanisms include front and rear link brackets. However, these differ in structure and require separate design and installation, hindering platform integration and cost optimization. The seat adjustment mechanism 10 of the present invention utilizes two identical link brackets 22, simplifying the design and installation process. This facilitates platform integration of the seat adjustment mechanism 10 and reduces design and installation costs.

[0104] In some embodiments of this application, see Figure 1 、 Figure 2 As shown, there are two slide rails 1, with one end of each driving structure 21 disposed on one of the slide rails 1 and the other end disposed on the other slide rail 1. Specifically, the two slide rails 1 provide double-sided support for the driving structure 21, preventing the driving structure 21 from shaking or deflecting during movement, thereby ensuring the stability of the seat adjustment mechanism 10.

[0105] In some embodiments of the present application, see Figure 4 、 Figure 5 As shown, a transmission case 215 is provided on either side of the drive motor 213. The drive member further includes a first transmission shaft 211 and a second transmission shaft 212. The drive motor 213 drives the first transmission shaft 211 and the second transmission shaft 212 to rotate. The first transmission shaft 211 is adapted to connect to the transmission case 215 on one side, and the second transmission shaft 212 is adapted to connect to the transmission case 215 on the other side. Specifically, one drive member includes one drive motor 213 and two transmission cases 215. The two transmission cases 215 are respectively connected to the first transmission shaft 211 and the second transmission shaft 212. The drive motor 213 simultaneously drives the two transmission shafts to rotate in the same cycle, thereby achieving highly synchronized adjustment actions on both sides of the seat adjustment mechanism 10.

[0106] In some embodiments, see Figure 4-Figure 6 As shown, the input shaft 2151 on one transmission box 215 is connected to the first transmission shaft 211 , and the input shaft 2151 on the other transmission box 215 is connected to the second transmission shaft 212 .

[0107] In some embodiments of the present application, see Figure 4-Figure 6 As shown, the first transmission shaft 211 and the second transmission shaft 212 are coaxially arranged.

[0108] In some embodiments of the present application, see Figure 4-Figure 6 As shown, the first transmission shaft 211 and the second transmission shaft 212 are of unequal length. Specifically, the different lengths of the first transmission shaft 211 and the second transmission shaft 212 prevent the drive motor 213 from being located in the exact center of the seat adjustment mechanism 10. When the seat adjustment mechanism 10 is installed on the seat 100, the user's center of gravity is located near the center of the seat adjustment mechanism 10 when sitting on the seat 100. This prevents the drive motor 213 from being damaged by excessive pressure, thereby increasing the service life of the seat adjustment mechanism 10. Furthermore, the drive motor 213 is prevented from feeling a foreign object sensation when located in the center of the seat adjustment mechanism 10, thereby ensuring user comfort. For example, the length of the first transmission shaft 211 is greater than the length of the second transmission shaft 212.

[0109] In some embodiments of the present application, see Figure 1 、 Figure 2As shown, the seat adjustment mechanism 10 further includes a torsion bar 5, which connects the connecting rod bracket 22 to the seat cushion frame 4. The torsion bar 5 is used to apply a force to the connecting rod bracket 22, which drives the connecting rod bracket 22 to swing so that the lower end of the connecting rod bracket 22 moves toward the other swing mechanism. Specifically, the torsion bar 5 is used to apply a force to the connecting rod bracket 22 to cause the seat cushion frame 4 to rise. When the seat adjustment mechanism 10 is applied to the seat 100, the torsion bar 5 provides an upward force to the connecting rod bracket 22. When the seat adjustment mechanism 10 is adjusted upward, the torsion bar 5 provides assistance to the connecting rod bracket 22, thereby improving the adjustment efficiency of the seat adjustment mechanism 10. When the seat adjustment mechanism 10 is adjusted downward, the torsion bar 5 provides resistance to the movement of the connecting rod bracket 22, making the movement of the connecting rod bracket 22 smoother and preventing a sudden downward jerk, thereby ensuring the normal operation of the adjustment function of the seat cushion frame 4.

[0110] In some embodiments of this application, see Figure 1 、 Figure 2 、 Figure 13 As shown, the torsion bar 5 includes a torsion bar body 51, a first torsion bar section 52, and a second torsion bar section 53. The first torsion bar section 52 is connected to one end of the torsion bar body 51, which at least partially extends into the bracket rod 222. The first torsion bar section 52 is fixedly connected to the bracket rod 222, and the second torsion bar section 53 is connected to the other end of the torsion bar body 51. The second torsion bar section 53 is connected to the seat cushion frame 4. Specifically, the first torsion bar section 52 is fixedly connected to the bracket rod 222, and the torsion bar body 51 at least partially extends into the bracket rod 222, so that the torsion bar 5 can accurately transmit its own torsion force to the bracket rod 222, thereby ensuring the stability of the force exerted by the torsion bar 5 on the connecting rod bracket 22.

[0111] In some embodiments, the first section 52 of the torsion bar is fixedly connected to the bracket rod 222 by a tube expansion process.

[0112] In some embodiments of this application, see Figure 1 、 Figure 2 、 Figure 13As shown, the first section 52 of the torsion bar is a U-shaped structure and includes a first arm 521, a second arm 522, and a connecting arm 523. The connecting arm 523 connects the first arm 521 and the second arm 522. The first arm 521 is connected to one end of the torsion bar body 51. The inner wall of the support rod 222 is provided with an embossed stopper section, and the first arm 521 and the second arm 522 abut against the embossed stopper section. Specifically, the connecting arm 523 connects the first arm 521 and the second arm 522, forming a single U-shaped structure. When the torsion bar 5 is subjected to a torsional force, it can effectively transmit the torsional force to the support rod 222. At the same time, the abutment of the first arm 521 and the second arm 522 can resist large torsional forces, preventing the torsion bar 5 from sliding unnecessarily within the support rod 222. This ensures the reliability of the connection between the torsion bar 5 and the support rod 222, thereby ensuring the accuracy of the seat adjustment mechanism 10. The embossed limiting section can be a limiting structure formed by an embossing process. The embossed limiting section can at least increase the friction between the inner wall of the bracket rod 222 and the first arm 521 and the second arm 522 to limit the rotation or movement of the first arm 521 and the second arm 522.

[0113] In some embodiments of the present application, see Figure 1 、 Figure 2 、 Figure 4 As shown, the seat adjustment mechanism 10 includes a slide rail 1, a seat cushion frame 4, at least two drive structures 21, and at least two connecting rod brackets 22. The drive structure 21 is movably arranged on the slide rail 1 and is movably connected to the seat cushion frame 4. The height of the seat cushion frame 4 is adjustable, wherein multiple drive structures 21 are suitable for synchronous movement or asynchronous movement. Specifically, the height of multiple seat cushion frames 4 is adjustable, and synchronous movement or asynchronous movement can be achieved. The seat adjustment mechanism 10 has multiple forms of adjustment methods (such as height adjustment, linear adjustment along the slide rail 1, or one or more adjustment methods of unilateral height adjustment), which meets the diverse usage needs of users and improves the comfort of the adjustment structure of the seat 100.

[0114] The synchronous movement of multiple driving structures 21 can move at the same speed along the direction of the slide rail 1, thereby enabling the seat cushion frame 4 to move as shown in FIG. Figure 1 As shown, it moves left or right along the direction of the slide rail 1.

[0115] The asynchronous motion of the multiple drive structures 21 provides the seat adjustment mechanism 10 with a richer range of adjustment functions, meeting a wider range of user needs and increasing the functionality of the seat adjustment mechanism 10. For example, one side of the seat cushion frame 4 can be raised or lowered while the other side remains stationary, one side of the seat cushion frame 4 can be raised while the other side is lowered, one side can be lowered while the other side is raised, or the entire seat adjustment mechanism 10 can be raised or lowered.

[0116] It should be noted that synchronous motion is motion in the same direction and at the same speed. Asynchronous motion is motion in different directions or at different speeds, for example, one drive structure 21 is stationary while the other drive structure 21 moves; the two drive structures 21 move toward each other at the same speed; or the two drive structures 21 move in opposite directions at the same speed.

[0117] In the related art, the functionality of the seat adjustment mechanism is relatively simple, and it can only meet the user's two adjustment methods: the height direction of the seat cushion frame and the straight direction along the slide rail. However, with the improvement of people's quality of life, users expect the seat adjustment mechanism to have more flexible and diversified adjustment methods to meet different usage needs.

[0118] According to the seat adjustment mechanism 10 of the embodiment of the present application, the height of the seat cushion frame 4 is adjustable by providing a drive structure 21 and a connecting rod bracket 22, and multiple drive structures 21 and connecting rod brackets 22 can realize synchronous movement or asynchronous movement to adjust the position and height of the seat cushion frame 4, so that the seat cushion frame 4 can realize various forms of adjustment (for example, overall height adjustment of the seat cushion frame 4, linear adjustment along the slide rail 1, or a combination of one or more of unilateral height adjustment), providing users with more choices and increasing the diversity and functionality of the position of the seat cushion frame 4.

[0119] See Figure 17 As shown, a seat 100 according to another embodiment of the present application includes the above-mentioned seat adjustment mechanism 10.

[0120] According to the seat 100 of another embodiment of the present application, its seat adjustment mechanism 10 drives the connecting rod bracket 22 to move through the driving structure 21 to drive the seat cushion frame 4 to move, and the driving structure 21 is also used to lock the connecting rod bracket 22. The locking function of the connecting rod bracket 22 is integrated into the driving structure 21, which reduces the number of components of the seat adjustment mechanism 10, reduces the structural complexity of the seat adjustment mechanism 10, reduces structural redundancy, and reduces the space occupied by the seat adjustment mechanism 10. At the same time, it also improves the stability and reliability of the connecting rod bracket 22 during the movement process and the use of the seat 100.

[0121] In some embodiments, the seat 100 further includes a seat cushion mounted on the seat cushion frame 4 .

[0122] In some embodiments, the chair 100 further includes a backrest that is rotatable relative to the seat cushion.

[0123] In some embodiments, see Figure 1 、 Figure 8 、 Figure 9 As shown, there are two driving structures 21. When the two driving structures 21 move toward each other, the seat cushion frame 4 is lifted as a whole, thereby realizing the height adjustment function of the seat 100.

[0124] In some embodiments, see Figure 1 、 Figure 8 、 Figure 10 As shown, there are two driving structures 21. When the two driving structures 21 move in opposite directions, the seat cushion frame 4 is lowered as a whole, thereby realizing the lowering function of the seat 100.

[0125] In some embodiments, see Figure 1 、 Figure 8 As shown, there are two driving structures 21 , and the two driving structures 21 move forward along the slide rail 1 , and the connecting rod brackets 22 are both locked, thereby realizing the forward movement function of the seat 100 .

[0126] In some embodiments, see Figure 1 、 Figure 8 As shown, there are two driving structures 21, and the two driving structures 21 move backward along the slide rail 1, and the connecting rod brackets 22 are all locked, so as to realize the rearward movement function of the seat 100.

[0127] In some embodiments, see Figure 1 、 Figure 8 、 Figure 11 As shown, there are two driving structures 21. The driving structure 21 on the front side moves backward along the slide rail 1, driving the front connecting rod bracket 22 to rotate counterclockwise. The driving structure 21 on the rear side is stationary and the rear connecting rod bracket 22 is locked, so that the seat 100 is lifted forward.

[0128] In some embodiments, see Figure 1 、 Figure 8 、 Figure 12 As shown, there are two drive structures 21. The front drive structure 21 moves forward along the slide rail 1, driving the front link bracket 22 to rotate clockwise. The rear drive structure 21 is stationary and the rear link bracket 22 is locked, so that the seat 100 is lowered forward.

[0129] In some embodiments, see Figure 1 、 Figure 8 、 Figure 12 As shown, there are two driving structures 21. The driving structure 21 at the rear side moves forward along the slide rail 1, driving the rear connecting rod bracket 22 to rotate clockwise. The driving structure 21 at the front side is stationary and the front connecting rod bracket 22 is locked, so that the seat 100 is raised backward.

[0130] In some embodiments, see Figure 1 、 Figure 8 、 Figure 11 As shown, there are two drive structures 21. The drive structure 21 at the rear side moves backward along the slide rail 1, driving the rear connecting rod bracket 22 to rotate counterclockwise. The drive structure 21 at the front side is stationary and the front connecting rod bracket 22 is locked, so that the seat 100 is lowered backward.

[0131] See Figure 11 As shown in FIG, when the front end of the seat cushion is raised to an extremely high position and the rear end of the seat cushion is lowered to an extremely low position, it can be applied to the zero gravity chair 100 scenario. Figure 12 As shown, when the rear end of the seat 100 is raised to an extremely high position and the front end of the seat 100 is lowered to an extremely low position, the backrest of the seat 100 can be adjusted forward to a flat state to cooperate with the rear seat 100 of the vehicle 1000 to realize a large bed mode.

[0132] The seat adjustment mechanism 10 can realize the child cradle seat 100 mode through a motion cycle of "front raising, rear lowering"-"rear raising, front lowering".

[0133] See Figure 18 As shown, a vehicle 1000 according to another embodiment of the present application includes the above-mentioned seat 100.

[0134] According to another embodiment of the present application, the vehicle 1000 of the seat adjustment mechanism 10 of the seat 100 drives the connecting rod bracket 22 to move through the driving structure 21 to drive the seat cushion frame 4 to move, and the driving structure 21 is also used to lock the connecting rod bracket 22. The locking function of the connecting rod bracket 22 is integrated into the driving structure 21, which reduces the number of components of the seat adjustment mechanism 10, reduces the structural complexity of the seat adjustment mechanism 10, reduces structural redundancy, and reduces the space occupied by the seat adjustment mechanism 10. At the same time, it also improves the stability and reliability of the connecting rod bracket 22 during the movement process and the seat 100 during use.

[0135] In the description of this application, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0136] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections, or communication; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0137] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to 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 different embodiments or examples described in this specification.

[0138] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A seat adjustment mechanism (10), characterized in that: include: Slide rail (1); Seat cushion frame (4); A driving structure (21), wherein the driving structure (21) is arranged on the slide rail (1); A connecting rod bracket (22), one end of the connecting rod bracket (22) is movably connected to the driving structure (21), and the other end of the connecting rod bracket (22) is movably connected to the seat cushion frame (4). The driving structure (21) drives the connecting rod bracket (22) to move so as to drive the seat cushion frame (4) to move. The driving structure (21) is also used to lock the connecting rod bracket (22).

2. The seat adjustment mechanism (10) according to claim 1, characterized in that The driving structure (21) comprises: A sliding member, the sliding member being arranged on the slide rail (1); a driving bracket (214), the driving bracket (214) being mounted on the sliding member; a drive member, the drive member being at least partially mounted on the drive bracket (214); The driving member drives the sliding member to slide along the slide rail (1), and / or the driving member drives the connecting rod bracket (22) to rotate or the driving member locks the connecting rod bracket (22).

3. The seat adjustment mechanism (10) according to claim 2, characterized in that The driving member comprises a driving motor (213) and a transmission box (215); the driving motor (213) is mounted on the driving bracket (214); the transmission box (215) is mounted on the sliding member; the driving motor (213) is connected to the transmission box (215) in a transmission manner; and the connecting rod bracket (22) is connected to the transmission box (215) in a transmission manner.

4. The seat adjustment mechanism (10) according to claim 3, characterized in that The driving motor (213) is a motor with a self-locking function.

5. The seat adjustment mechanism (10) according to claim 3, characterized in that The slide rail (1) has a rack portion, and the transmission box (215) includes: an input shaft (2151), the input shaft (2151) being connected to the drive motor (213); an output shaft (2152), the output shaft (2152) being connected to the connecting rod bracket (22); and A transmission gear is connected to the input shaft (2151) for transmission, and the transmission gear is meshed with the rack for transmission.

6. The seat adjustment mechanism (10) according to claim 5, characterized in that The transmission box (215) further comprises: A clutch (2153) is mounted on one of the input shaft (2151) and the output shaft (2152) and selectively connects or disconnects the other of the input shaft (2151) and the output shaft (2152).

7. The seat adjustment mechanism (10) according to claim 6, characterized in that The connecting rod bracket (22) comprises a bracket rod (222) and a connecting rod (221), the bracket rod (222) is movably connected to the seat cushion frame (4), the connecting rod (221) is connected to the bracket rod (222), and the connecting rod (221) is connected to the output shaft (2152).

8. The seat adjustment mechanism (10) according to claim 7, characterized in that The seat adjustment mechanism (10) further comprises a driving rod (6), wherein the driving rod (6) comprises a first rod segment (61) and a second rod segment (62) connected to each other, wherein the first rod segment (61) is connected to the connecting rod (221), and the second rod segment (62) is connected to the output shaft (2152), and when the output shaft (2152) rotates, it is suitable for driving the connecting rod (221) to swing through the driving rod (6).

9. The seat adjustment mechanism (10) according to claim 8, characterized in that One of the second rod section (62) and the output shaft (2152) has an external spline, and the other has a spline groove, and the external spline cooperates with the spline groove.

10. The seat adjustment mechanism (10) according to claim 8, characterized in that The transmission box (215) includes a box body, a box body hole is provided on the box body, and one of the output shaft (2152) and the second rod segment (62) is inserted into the box body hole and is interference-fitted with the box body hole, so that the friction force provided by the box body hole can lock the connecting rod bracket (22) when the input shaft (2151) and the output shaft (2152) are disconnected.

11. The seat adjustment mechanism (10) according to claim 8, characterized in that The sliding member includes a support frame (217) and a sliding frame (216); the sliding frame (216) is slidably arranged on the slide rail (1); the support frame (217) is installed on the sliding frame (216); the first rod segment (61) passes through the support frame (217) and the first rod segment (61) can rotate relative to the support frame (217); and the transmission box (215) is installed on the sliding frame (216).

12. The seat adjustment mechanism (10) according to claim 11, characterized in that A support hole is provided on the support frame (217), and the first rod segment (61) is inserted into the support hole and is interference-fitted with the support hole, so that the connecting rod bracket (22) is locked by the friction force between the first rod segment (61) and the support hole when the input shaft (2151) and the output shaft (2152) are disconnected.

13. The seat adjustment mechanism (10) according to claim 11, characterized in that The support frame (217) is provided with a first limiting structure (2171) and a second limiting structure (2172), wherein the first limiting structure (2171) is used to limit the first extreme position of the connecting rod bracket (22), and the second limiting structure (2172) is used to limit the second extreme position of the connecting rod bracket (22).

14. The seat adjustment mechanism (10) according to claim 5, characterized in that The slide rail (1) comprises: A slide rail body (11), wherein the sliding member is in sliding engagement with the slide rail body (11); and A guide rod (12), wherein the guide rod (12) is fixed on the slide rail body (11), and the rack portion is arranged on the guide rod (12).

15. The seat adjustment mechanism (10) according to claim 14, characterized in that The transmission box (215) further comprises a box body, the guide rod (12) passes through the box body, the transmission gear is arranged in the box body, and the guide rod (12) is meshed with the transmission gear.

16. The seat adjustment mechanism (10) according to claim 1, characterized in that There are at least two driving structures (21), and at least two driving structures (21) can selectively drive at least two connecting rod brackets (22) to move or lock the connecting rod brackets (22).

17. The seat adjustment mechanism (10) according to claim 1, characterized in that There are two slide rails (1), one end of any one of the drive structures (21) is arranged on one of the slide rails (1), and the other end is arranged on the other slide rail (1).

18. The seat adjustment mechanism (10) according to claim 3, characterized in that The transmission boxes (215) are respectively provided on both sides of the driving motor (213), and the driving member further comprises a first transmission shaft (211) and a second transmission shaft (212). The driving motor (213) drives the first transmission shaft (211) and the second transmission shaft (212) to rotate. The first transmission shaft (211) is suitable for being connected to the transmission box (215) on one side, and the second transmission shaft (212) is suitable for being connected to the transmission box (215) on the other side.

19. The seat adjustment mechanism (10) according to claim 18, characterized in that The first transmission shaft (211) and the second transmission shaft (212) are coaxially arranged.

20. The seat adjustment mechanism (10) according to claim 7, characterized in that The seat adjustment mechanism (10) further comprises a torsion bar (5), wherein the torsion bar (5) connects the connecting rod bracket (22) and the seat cushion frame (4), and the torsion bar (5) is used to apply a force to the connecting rod bracket (22), wherein the force drives the connecting rod bracket (22) to swing so that the lower end of the connecting rod bracket (22) moves toward another swing mechanism.

21. The seat adjustment mechanism (10) according to claim 20, characterized in that The torsion bar (5) comprises a torsion bar body (51), a first torsion bar section (52) and a second torsion bar section (53); the first torsion bar section (52) is connected to one end of the torsion bar body (51); the torsion bar body (51) at least partially extends into the support rod (222); the first torsion bar section (52) is fixedly connected to the support rod (222); the second torsion bar section (53) is connected to the other end of the torsion bar body (51); and the second torsion bar section (53) is connected to the seat cushion frame (4).

22. The seat adjustment mechanism (10) according to claim 21, characterized in that The first section (52) of the torsion bar is a U-shaped structure and includes a first support arm (521), a second support arm (522) and a connecting arm (523). The connecting arm (523) connects the first support arm (521) and the second support arm (522). The first support arm (521) is connected to the one end of the torsion bar body (51). The inner wall of the support rod (222) is provided with an embossed limiting section. The first support arm (521) and the second support arm (522) stop at the embossed limiting section.

23. A chair (100), characterized in that: The invention comprises a seat adjustment mechanism (10) according to any one of claims 1 to 22.

24. A vehicle (1000), characterized in that Comprising the seat (100) according to claim 23.

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