Front-row seat with height-adjustable and forward-moving seat cushion

Abstract

The utility model discloses a front-row seat with a seat cushion capable of being adjusted in height and moved forwards, which comprises a slide rail assembly, the slide rail assembly comprises a lower slide rail module and an upper slide rail module, the lower slide rail module is used for being assembled on an automobile floor, and the rear end of the upper slide rail module is fixedly provided with an adapter part extending upwards; a backrest framework is rotationally mounted on the adapter part, and a first driving assembly for driving the backrest framework to rotate is arranged on the backrest framework; a seat cushion framework is arranged on the upper side of the upper sliding rail module, a height adjusting mechanism is arranged between the seat cushion framework and the upper sliding rail module and used for driving and adjusting the seat cushion framework to move up and down relative to the upper sliding rail module, and a front-back adjusting mechanism is arranged between the seat cushion framework and the upper sliding rail module. The front-back adjusting mechanism is used for driving the seat cushion framework to move front and back relative to the upper sliding rail module. The seat cushion has the advantages that the seat cushion has the forward moving function and the height adjusting function and has the advantages of being high in practicability and good in comfort.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, in particular to a front seat with a seat cushion capable of being height-adjusted and moved forward. Background Art

[0002] Car seats are one of the most important parts of cars, which can provide comfortable and safe riding positions for drivers and passengers. With the expansion of the automobile market, both automobile manufacturers and consumer terminals have put forward more stringent requirements on the comfort of car seats.

[0003] Some front-row seats on the market have a forward-tilting function. The forward tilting of the backrest can increase the space for rear passengers to move around, allowing passengers to support their legs on the backrest of the front seat when resting. However, in existing seat structures, the backrest of the front seat is usually rotatably mounted on the rear end of the seat cushion frame. When the backrest rotates forward, the seat cushion is stationary relative to the backrest. The backrest is restricted by the interference of the seat cushion and cannot be tilted forward at a large angle, resulting in limited space for rear passengers to move around, and the passengers' legs cannot get more comfortable support. To this end, the applicant intends to increase the folding space under the backrest by moving the seat cushion forward alone, so that the backrest can be tilted forward at a large angle. However, in this research and development context, giving the seat cushion a separate forward movement function requires the addition of some additional transmission mechanism components, making it difficult for the seat cushion to take into account the high-profile function. If the high-profile function is cancelled, the practicality and comfort of the seat will be greatly reduced.

[0004] Therefore, how to integrate the forward movement function and the high-profile function of the seat cushion on the same seat has become a technical problem that needs to be solved urgently. Utility Model Content

[0005] In view of this, the utility model provides a front seat with a seat cushion that can be raised and moved forward, and the seat cushion can have the functions of moving forward and raising, and has the advantages of strong practicality and good comfort.

[0006] To achieve the above purpose, the technical solution of the utility model is as follows:

[0007] A front row seat with a seat cushion capable of being raised and moved forward, the key points of which are as follows:

[0008] A slide rail assembly, the slide rail assembly comprising a lower slide rail module and an upper slide rail module slidably arranged on the lower slide rail module, the lower slide rail module is used to be assembled to the vehicle floor, and a transfer component extending upward is fixedly arranged at the rear end of the upper slide rail module;

[0009] A backrest frame rotatably mounted on the adapter component, wherein the backrest frame is provided with a first drive assembly, and the first drive assembly is used to drive the backrest frame to rotate forward or backward;

[0010] And a seat cushion frame located on the upper side of the upper slide rail module, a height adjustment mechanism is provided between the seat cushion frame and the upper slide rail module, the height adjustment mechanism is used to drive the seat cushion frame to move up and down relative to the upper slide rail module, and a front and rear adjustment mechanism is provided between the seat cushion frame and the upper slide rail module, the front and rear adjustment mechanism is used to drive the seat cushion frame to move forward and backward relative to the upper slide rail module.

[0011] With the above structure, the seat cushion frame and the backrest are assembled on different structural bases of the upper slide rail module, and the seat cushion frame can be driven to move forward as a whole by the front and rear adjustment mechanism, thereby eliminating the space interference under the backrest frame, providing space for the backrest frame to fold forward, so that the backrest frame can be tilted forward at a large angle. The seat cushion frame is driven up and down by the height adjustment mechanism, which can realize the high-profile function of the seat cushion frame and ensure the riding comfort of the front passengers.

[0012] Preferably, the lower slide rail module comprises a first lower rail and a second lower rail arranged in parallel, and the upper slide rail module comprises a first upper rail and a second upper rail respectively slidably connected to the first lower rail and the second lower rail;

[0013] The front and rear adjustment mechanism includes a first link arranged between the front portion of the seat cushion frame and the first upper rail, two ends of the first link are respectively hinged to the front portion of the seat cushion frame and the first upper rail, a second link is provided between the rear portion of the seat cushion frame and the first upper rail, two ends of the second link are respectively hinged to the rear portion of the seat cushion frame and the first upper rail, and one end of the second link away from the seat cushion frame can be slidably connected to the first upper rail forward and backward, and the first link and the second link are symmetrically provided with two groups, and the other group of the first link and the second link are located between the seat cushion frame and the second upper rail. A supporting cross bar is provided at the rear portion of the seat cushion frame, and two ends of the supporting cross bar are respectively rotatably connected to the upper ends of the two second links, and a second driving assembly is provided on the inner side of the first upper rail, which is used to drive the second link on the first upper rail to slide back and forth on the first upper rail, so as to drive the seat cushion frame to move forward and backward relative to the first upper rail and the second upper rail.

[0014] Preferably, the first upper rail and the second upper rail are both provided with a slide groove extending along their length direction, and the ends of the two second connecting rods away from the seat cushion frame are respectively hinged to the first upper rail and the second upper rail through two pins, and the two pins can be slidably supported in the corresponding slide grooves.

[0015] Preferably, the slide groove is constructed into a wave-shaped structure, which includes an inclined section, a first transition section, a first horizontal section, a second transition section, and a second horizontal section connected in sequence from front to back, and the height of the front end of the inclined section is lower than the height of the rear end.

[0016] Preferably, the second drive assembly includes a first motor, a first screw rod driven to rotate by the first motor, and a first nut sleeve threadedly mounted on the first screw rod, the base of the first motor is rotatably mounted on the first upper rail, the first screw rod extends backward along the length direction of the first upper rail, and the first nut sleeve is rotatably connected to the corresponding pin shaft through a supporting component.

[0017] Preferably, the height adjustment mechanism includes a third drive assembly arranged on the inner side of the second upper rail, and the third drive assembly is used to drive the first connecting rod and the second connecting rod on the second upper rail to rotate upward or downward, and lock the first connecting rod and the second connecting rod to drive the seat cushion frame to move upward or downward relative to the upper slide rail module.

[0018] Preferably, the third drive assembly includes a second motor, a second screw rod driven to rotate by the second motor, and a second nut sleeve threadedly mounted on the second screw rod, the base of the second motor is rotatably mounted on the seat cushion frame, and the second nut sleeve is rotatably connected to the corresponding pin shaft through a connecting rod.

[0019] Preferably, the base of the second motor is rotatably mounted on the front part of the seat cushion frame through an adapter, and the second screw rod extends backward along the length direction of the second upper rail.

[0020] Preferably, in the initial state, the first connecting rod and the second connecting rod are both arranged to be tilted backward, and the height of the front end thereof is lower than the height of the rear end.

[0021] Preferably, a crossbeam is fixedly supported between the first upper rail and the second upper rail.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] 1. The front row seats with a cushion that can be raised and moved forward provided by the utility model are assembled with the cushion frame and the backrest on different structural bases of the upper slide rail module. The cushion frame can be driven to move forward as a whole by the front and rear adjustment mechanism, thereby eliminating the spatial interference under the backrest frame, providing space for the backrest frame to fold forward, so that the backrest frame can be tilted forward at a large angle, improving the activity space and riding comfort of the rear passengers. The cushion frame is then driven up and down by the height adjustment mechanism, thereby realizing the high-profile function of the cushion frame and ensuring the riding comfort of the front row passengers. In addition, by lifting the cushion frame upward, the height difference between the rear end of the cushion and the backrest can be made up when the backrest frame is tilted backward, ensuring the comfort of the waist and hip area of ​​the user when lying flat, further improving the user experience.

[0024] 2. The front row seats provided by the utility model with seat cushions that can be raised and moved forward can, through reasonable layout, integrate the seat cushion's forward movement function, high-profile function and hip lifting function on the seat while reducing parts, so that the entire chair is compactly arranged and can take into account more layout requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of the front seats with cushions that can be raised and moved forward;

[0026] Figure 2 A side view of a front seat in a sitting position with a cushion that can be raised and moved forward;

[0027] Figure 3 A side view of the front seats in a folded state with seat cushions that can be raised and moved forward;

[0028] Figure 4 A side view of a front seat with a cushion that can be adjusted high and moved forward, with the cushion frame 3 in the highest state of being adjusted high;

[0029] Figure 5 A top view of the front seats with cushions that can be raised and moved forward;

[0030] Figure 6 A cross-sectional view of a front seat with a seat cushion that can be raised and moved forward in a sitting position (to show the second drive assembly 6);

[0031] Figure 7 A cross-sectional view of a front seat in a folded state with a cushion that can be raised and moved forward;

[0032] Figure 8 Another cross-sectional view of the front seat in a sitting position with a seat cushion that can be raised and moved forward (to show the third drive assembly 7);

[0033] Fig. 9 A cross-sectional view of a front seat with a seat cushion that can be adjusted high and moved forward, when the seat cushion frame 3 is in the highest height adjustment state;

[0034] Fig.10 It is a structural schematic diagram of the slide rail assembly 1;

[0035] Fig.11 It is a side view of the second lower rail 14 and the second upper rail 13. DETAILED DESCRIPTION

[0036] The utility model is further described below in conjunction with embodiments and drawings.

[0037] like Figure 1 and 10As shown, a front row seat with a seat cushion that can be adjusted high and moved forward includes a slide rail assembly 1, a backrest frame 2 and a seat cushion frame 3, wherein the slide rail assembly 1 includes a lower slide rail module 1b and an upper slide rail module 1a slidably arranged on the lower slide rail module 1b, the lower slide rail module 1b is used to be assembled to the car floor, the upper slide rail module 1a is fixedly provided with an upwardly extending adapter component 1c at the rear end, and the backrest frame 2 is rotatably mounted on the adapter component 1c. A first driving assembly (not shown in the figure) is provided on the backrest frame 2, and the first driving assembly can drive the backrest frame 2 to rotate forward or backward relative to the adapter component 1c. The first driving assembly that drives the seat back to rotate forward and backward can use an electric angle adjuster, which is a prior art and will not be repeated here. The seat cushion frame 3 is located on the upper side of the upper slide rail module 1a, and a height adjustment mechanism is provided between the seat cushion frame 3 and the upper slide rail module 1a, and the height adjustment mechanism can drive the seat cushion frame 3 to move up and down relative to the upper slide rail module 1a and lock the seat cushion frame 3 at a suitable height. A front-to-back adjustment mechanism is provided between the seat cushion frame 3 and the upper slide rail module 1a, and the front-to-back adjustment mechanism can drive the seat cushion frame 3 to move back and forth relative to the upper slide rail module 1a.

[0038] Based on the above structural design, combined with Figures 2 to 4 As shown, the seat cushion frame 3 and the backrest frame 2 are assembled on different structural bases of the upper slide rail module 1a, and the seat cushion frame 3 can be driven to move forward relative to the two upper rails by the front and rear adjustment mechanism, thereby eliminating the space interference below the backrest frame 2, providing space for the backrest frame 2 to fold forward, so that the backrest frame 2 can be tilted forward at a large angle (refer to Figure 3 ), improving the activity space and riding comfort of rear passengers. Then the seat cushion frame 3 can be driven up and down by the height adjustment mechanism to achieve the high-profile function of the seat cushion frame 3, thereby adjusting the field of vision and riding comfort of front passengers. Figure 4 It can be seen that by lifting the seat cushion frame 3 upwards, the height difference between the rear end of the seat cushion and the backrest can be compensated when the backrest frame 2 is flattened backwards, ensuring the comfort of the waist and hip area of ​​the user when lying flat, further improving the user experience.

[0039] Furthermore, Figure 1 and Fig.10 As shown, the lower slide rail module 1b includes a first lower rail 12 and a second lower rail 14 arranged in parallel, and the upper slide rail module 1a includes a first upper rail 11 slidably connected to the first lower rail 12, and a second upper rail 13 slidably connected to the second lower rail 14. A crossbeam 1d is fixedly supported between the first upper rail 11 and the second upper rail 13 to facilitate the synchronous forward and backward sliding of the two upper rails. Figure 5 and 6As shown, the front-to-back adjustment mechanism includes a first connecting rod 4 arranged between the front of the seat cushion frame 3 and the first upper rail 11, the upper end of the first connecting rod 4 is hinged to the front of the seat cushion frame 3, and the lower end is hinged to the front end of the first upper rail 11. A second connecting rod 5 is arranged between the rear of the seat cushion frame 3 and the first upper rail 11, the upper end of the second connecting rod 5 is hinged to the rear of the seat cushion frame 3, the lower end is hinged to the rear of the upper slide rail module 1a, and the lower end of the second connecting rod 5 is connected to the first upper rail 11 in a forward and backward sliding manner. In this embodiment, the first connecting rod 4 and the second connecting rod 5 are symmetrically arranged in two groups, and the other group of the first connecting rod 4 and the second connecting rod 5 is located between the seat cushion frame 3 and the second upper rail 13. A supporting cross bar 31 is arranged at the rear of the seat cushion frame 3, and the two ends of the supporting cross bar 31 are respectively rotatably connected to the upper ends of the two second connecting rods 5. Considering this, when one of the connecting rods on one side moves, it can drive the other side connecting rod to move synchronously. A second driving assembly 6 is provided inside the first upper rail 11, and the second driving assembly 6 can drive the lower end of the second connecting rod 5 on the left side to slide forward and backward on the first upper rail 11, and under the linkage action of the supporting cross bar 31, drive the lower end of the second connecting rod 5 on the right side to slide forward and backward on the second upper rail 13 synchronously, thereby driving the rear part of the seat cushion frame 3 to move forward and backward. Figure 7 It can be seen that when the second drive assembly 6 drives the rear part of the seat cushion frame 3 to move forward, the two first connecting rods 4 can rotate around the hinge center with the corresponding upper rail, thereby driving the front part of the seat cushion frame 3 to move forward. When the backrest needs to be tilted forward, the seat cushion frame 3 is first controlled to move forward by the second drive assembly 6, and then the backrest frame 2 is driven to rotate forward to be completely tilted forward by the first drive assembly. Conversely, when restoring the seat to a sitting position, the backrest frame 2 is first driven to rotate backward to an upright position, and then the seat cushion frame 3 is controlled to move backward by the second drive assembly 6.

[0040] For further information, see Fig.10 The first upper rail 11 and the second upper rail 13 are both provided with a slide groove a extending along the length direction thereof. Figure 6 and 8 The lower ends of the two second connecting rods 5 are respectively hinged to the first upper rail 11 and the second upper rail 13 through two pins b, and the two pins b are supported in the corresponding slide grooves a of the upper rails in a forward and backward sliding manner. The second driving assembly 6 drives the pin b of the left second connecting rod 5 to slide forward and backward in the corresponding slide groove a, and under the linkage action of the supporting cross bar 31, it can drive the pin b of the right second connecting rod 5 to slide synchronously in the corresponding slide groove a. With such a design, the slide groove a has the functions of guiding and limiting, so that the forward movement of the seat cushion frame 3 can be smoother and more accurate.

[0041] Re-attend Figure 6The second driving assembly 6 includes a first motor 61, a first screw rod 62 driven to rotate by the first motor 61, and a first nut sleeve 63 threadedly mounted on the first screw rod 62, wherein the base of the first motor 61 is rotatably mounted on the first upper rail 11, the first screw rod 62 extends backward along the length direction of the first upper rail 11, the first nut sleeve 63 is rotatably connected to the corresponding pin shaft b through the support component 8, and the first nut sleeve 63 is fixedly connected to the support component 8. In this embodiment, the hinge center of the base of the first motor 61 and the first upper rail 11 coincides with the hinge center of the first connecting rod 4 and the first upper rail 11. Figure 7 It can be seen that the first motor 61 drives the first nut sleeve 63 to move forward along the length direction of the first screw rod 62, which can drive the seat cushion frame 3 to move forward along the length direction of the slide groove a.

[0042] Please refer to Fig.11 In this embodiment, the slide a is constructed into a wave-shaped structure, which includes an inclined section a1, a first transition section a2, a first horizontal section a3, a second transition section a4, and a second horizontal section a5 which are connected in sequence from front to back, wherein the height of the front end of the inclined section a1 from the horizontal plane is lower than the height of the rear end, the first transition section a2 is an arc section, and the second transition section a4 is inclined backward and downward. When the seat is in a sitting position, the pin b is located at the rear end of the slide a (refer to Figure 6 ), when the second driving assembly 6 drives the rear part of the seat cushion frame 3 to move forward, the pin shaft b slides from the rear end to the front end under the guidance of the slide groove a (refer to Figure 7 ), that is, the seat cushion frame 3 is driven to move forward slowly horizontally and then move downward. Since the seat cushion design of the car seat is usually slightly tilted backward and downward, such a movement trajectory can further increase the folding space below the backrest frame 2 to ensure that the backrest frame 2 can be tilted forward.

[0043] like Figure 1 and Figure 5 As shown, the height adjustment mechanism includes a third driving assembly 7 arranged on the inner side of the second upper rail 13, and the third driving assembly 7 can drive the first connecting rod 4 and the second connecting rod 5 on the second upper rail 13 to rotate upward and lock the first connecting rod 4 and the second connecting rod 5, and then drive the first connecting rod 4 and the second connecting rod 5 on the first upper rail 11 to rotate upward and lock synchronously under the linkage action of the supporting cross bar 31, thereby driving the seat cushion frame 3 to be lifted upward relative to the two upper rails (refer to Fig. 9 ). Thereafter, the first connecting rod 4 and the second connecting rod 5 on the second upper rail 13 are driven to rotate downward, which can drive the seat cushion frame 3 to return downward to the starting position.

[0044] Further, such as Figure 8As shown, the third drive assembly 7 includes a second motor 71, a second screw rod 72 driven to rotate by the second motor 71, and a second nut sleeve 73 threadedly mounted on the second screw rod 72, wherein the base of the second motor 71 is rotatably mounted on the front part of the seat cushion frame 3 through an adapter c, the second screw rod 72 extends backward along the length direction of the second upper rail 13, and a connecting rod 9 is fixed on the second nut sleeve 73, and the rear end of the connecting rod 9 is rotatably connected to the pin shaft b. With this design, the third drive assembly 7 is not affected by the operation of the second drive assembly 6. Fig. 9 As shown, the second motor 71 drives the second nut sleeve 73 to move backward along the second screw rod 72, which can force the first connecting rod 4 and the second connecting rod 5 to rotate upward synchronously around the hinge center between them and the second upper rail 13, that is, it can drive the seat cushion frame 3 to be lifted upward relative to the upper slide rail module 1a. Thereafter, the second motor 71 drives the second nut sleeve 73 to move forward along the second screw rod 72. Since the second drive assembly 6 can control the sliding of the pin shaft b in the corresponding slide groove a, the second drive assembly 6 can lock the corresponding lower end of the second connecting rod 5 at the rear end of the slide groove a. When the second nut sleeve 73 drives the connecting rod 9 to move forward, it can force the first connecting rod 4 and the second connecting rod 5 to rotate backward and downward synchronously around the hinge center between them and the second upper rail 13, thereby driving the seat cushion frame 3 to move downward to the initial position as a whole.

[0045] Please refer to Figure 6 In the initial state, that is, when the seat cushion frame 3 has not moved forward and is not adjusted high, the first connecting rod 4 is tilted and arranged between the front part of the seat cushion frame 3 and the first upper rail 11, and the height of the front end is lower than the height of the rear end, that is, when the seat is in the sitting position, the upper end of the first connecting rod 4 is tilted and hinged to the front part of the seat cushion frame 3. The advantage of this design is that when the seat cushion frame 3 moves forward, the first connecting rod 4 rotates from the back to the top and then downward with its lower end hinge point as the center, ensuring the maximum rotation angle of the first connecting rod 4, so that the first connecting rod 4 can maximize the movement of the seat cushion frame 3 forward to the farthest distance (refer to Figure 7 In addition, when the upper end of the first connecting rod 4 rotates upward to the highest point, the rear part of the seat cushion frame 3 can be tilted downward, further increasing the space for the backrest frame 2 to fold downward. Thereafter, the first connecting rod 4 continues to rotate downward, and the seat cushion frame 3 can move forward and downward as a whole, that is, the avoidance space of the seat cushion frame 3 is guaranteed to the maximum extent, and the forward tilting angle of the backrest frame 2 is increased, thereby providing sufficient activity space for rear passengers, thereby improving the riding comfort of rear passengers.

[0046] Furthermore, Figure 8As shown, the second connecting rod 5 is arranged obliquely between the rear part of the seat cushion frame 3 and the upper rail 11. Similarly, when the seat is in a sitting position, the upper end of the second connecting rod 5 is hinged to the rear part of the seat cushion frame 3. With such a design, when the second motor 71 drives the second nut sleeve 73 to move backward along the second screw rod 72, it can ensure that the first connecting rod 4 and the second connecting rod 5 are synchronously rotated upward around the hinge center with the corresponding upper rail.

[0047] Re-attend Figure 1 and 5 Through the structural layout of the second drive assembly 6 and the third drive assembly 7, the high-profile function and forward movement function of the seat cushion and the hip lifting function can be integrated and installed inside the same seat under the premise of reducing the number of parts, thereby improving the compactness of the internal structure of the seat cushion, making the entire chair compact and able to take into account more layout requirements. At the same time, the corresponding structure can be selected according to different functional requirements. For example, if only a single seat cushion high-profile function or seat cushion forward movement function is required, only the second drive assembly 6 or the third drive assembly 7 needs to be assembled, making the structural selection more abundant and having better adaptability.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make a variety of similar expressions without violating the purpose and claims of the present invention, and such changes fall within the scope of protection of the present invention.

Claims

1. A front row seat with a seat cushion that can be raised and moved forward, characterized in that: include: A slide rail assembly (1), the slide rail assembly (1) comprising a lower slide rail module (1b) and an upper slide rail module (1a) slidably arranged on the lower slide rail module (1b), the lower slide rail module (1b) being used for being assembled to a vehicle floor, and a transfer component (1c) extending upward is fixedly arranged at the rear end of the upper slide rail module (1a); A backrest frame (2) rotatably mounted on the adapter component (1c), wherein the backrest frame (2) is provided with a first drive assembly, and the first drive assembly is used to drive the backrest frame (2) to rotate forward or backward; and a seat cushion frame (3) located on the upper side of the upper slide rail module (1a); a height adjustment mechanism is provided between the seat cushion frame (3) and the upper slide rail module (1a); the height adjustment mechanism is used to drive the seat cushion frame (3) to move up and down relative to the upper slide rail module (1a); and a front-to-back adjustment mechanism is provided between the seat cushion frame (3) and the upper slide rail module (1a); the front-to-back adjustment mechanism is used to drive the seat cushion frame (3) to move forward and backward relative to the upper slide rail module (1a).

2. The front seat with a seat cushion that can be adjusted high and moved forward according to claim 1, characterized in that: The lower slide rail module (1b) comprises a first lower rail (12) and a second lower rail (14) arranged in parallel, and the upper slide rail module (1a) comprises a first upper rail (11) and a second upper rail (13) respectively slidably connected to the first lower rail (12) and the second lower rail (14); The front-to-back adjustment mechanism comprises a first connecting rod (4) arranged between the front part of the seat cushion frame (3) and the first upper rail (11), the two ends of the first connecting rod (4) being respectively hinged to the front part of the seat cushion frame (3) and the first upper rail (11), a second connecting rod (5) being arranged between the rear part of the seat cushion frame (3) and the first upper rail (11), the two ends of the second connecting rod (5) being respectively hinged to the rear part of the seat cushion frame (3) and the first upper rail (11), and the end of the second connecting rod (5) away from the seat cushion frame (3) being slidably connected to the first upper rail (11) in a front-to-back manner, and the first connecting rod (4) and the second connecting rod ( 5) are symmetrically provided with two groups, the other group of first connecting rods (4) and second connecting rods (5) are located between the seat cushion frame (3) and the second upper rail (13), the rear part of the seat cushion frame (3) is provided with a supporting cross bar (31), the two ends of the supporting cross bar (31) are respectively rotatably connected to the upper ends of the two second connecting rods (5), and the inner side of the first upper rail (11) is provided with a second driving component (6), which is used to drive the second connecting rod (5) on the first upper rail (11) to slide forward and backward on the first upper rail (11), so as to drive the seat cushion frame (3) to move forward and backward relative to the first upper rail (11) and the second upper rail (13).

3. The front row seat with a seat cushion that can be adjusted high and moved forward according to claim 2, characterized in that: The first upper rail (11) and the second upper rail (13) are both provided with a slide groove (a) extending along the length direction thereof; the ends of the two second connecting rods (5) away from the seat cushion frame (3) are respectively hinged to the first upper rail (11) and the second upper rail (13) through two pin shafts (b); the two pin shafts (b) are supported in the corresponding slide grooves (a) in a manner that they can slide forward and backward.

4. The front row seat with a seat cushion that can be adjusted high and moved forward according to claim 3, characterized in that: The slide groove (a) is constructed into a wave-shaped structure, which includes an inclined section (a1), a first transition section (a2), a first horizontal section (a3), a second transition section (a4), and a second horizontal section (a5) connected in sequence from front to back, and the height of the front end of the inclined section (a1) is lower than the height of the rear end.

5. The front seat with a seat cushion that can be adjusted high and moved forward according to claim 3, characterized in that: The second driving assembly (6) comprises a first motor (61), a first screw rod (62) driven to rotate by the first motor (61), and a first nut sleeve (63) threadedly mounted on the first screw rod (62); the base of the first motor (61) is rotatably mounted on the first upper rail (11); the first screw rod (62) extends backward along the length direction of the first upper rail (11); and the first nut sleeve (63) is rotatably connected to the corresponding pin shaft (b) through a supporting component (8).

6. The front seat with a seat cushion that can be adjusted high and moved forward according to claim 3, characterized in that: The height adjustment mechanism comprises a third driving assembly (7) arranged on the inner side of the second upper rail (13), and the third driving assembly (7) is used to drive the first connecting rod (4) and the second connecting rod (5) on the second upper rail (13) to rotate upward or downward, and lock the first connecting rod (4) and the second connecting rod (5) to drive the seat cushion frame (3) to move upward or downward relative to the upper slide rail module (1a).

7. The front row seat with a seat cushion that can be adjusted high and moved forward according to claim 6, characterized in that: The third driving assembly (7) comprises a second motor (71), a second screw rod (72) driven to rotate by the second motor (71), and a second nut sleeve (73) threadedly mounted on the second screw rod (72); the base of the second motor (71) is rotatably mounted on the seat cushion frame (3); and the second nut sleeve (73) is rotatably connected to the corresponding pin shaft (b) via a connecting rod (9).

8. The front row seat with a seat cushion that can be adjusted high and moved forward according to claim 7, characterized in that: The base of the second motor (71) is rotatably mounted on the front part of the seat cushion frame (3) via an adapter (c), and the second screw rod (72) extends backward along the length direction of the second upper rail (13).

9. The front row seat with a seat cushion that can be adjusted high and moved forward according to claim 2, characterized in that: In the initial state, the first connecting rod (4) and the second connecting rod (5) are both arranged obliquely backwards, and the height of the front ends thereof is lower than the height of the rear ends.

10. The front row seat with a seat cushion that can be adjusted high and moved forward according to claim 2, characterized in that: A crossbeam (1d) is fixedly supported between the first upper rail (11) and the second upper rail (13).

Images