High-rigidity automobile seat framework
By designing a cushioning mechanism and spring telescopic rod in the car seat, absorbing inertial forces and energy absorption and dissipating forces, the problem of existing seats that may break under strong impact is solved, and the safety and stiffness of the seat are improved.
Patent Information
- Application Number
- CN202421721107.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-07-19
AI Technical Summary
When existing car seats face strong impact, the connection between the adjustment mechanism and the bottom of the vehicle body or the base of the seat back may break, threatening the lives and safety of the driver and passengers.
A high-rigid car seat skeleton is designed, and a buffer mechanism is used to absorb the force generated by inertia, and to absorb energy and eliminate force through the spring telescopic rod to reduce the impact on the root of the seat back.
It effectively avoids deformation or breakage caused by huge forces caused by inertia under strong impact, and improves the safety and stiffness of the seat.
Smart Images

Figure CN222554783U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile seats, in particular to a high-rigidity automobile seat frame. Background Art
[0002] Car seats are an important part of car interiors. They are not only areas that passengers come into direct contact with, but also components that integrate safety, functionality, comfort and decoration. The quality of seat design directly affects the passengers' riding experience, and plays a vital role in safety, comfort, functionality and aesthetics. They are not only directly related to the passengers' riding experience and safety, but also reflect the car manufacturers' pursuit of quality and design. Therefore, when choosing a car, the configuration and quality of the seats are also one of the factors that consumers need to consider.
[0003] Among many traffic accidents, rear-end collision is a relatively common one. When the vehicle behind hits the vehicle in front at a high speed, the reaction force under the impact and its own inertia will cause the driver or passenger to move forward first and then be pulled back by the seat belt and fall heavily on the seat back. Most existing cars have adjustment mechanisms added to the bottom of the seats for adjusting the seats, and are only fixed to the body by screws and welding. As a result, in the face of such a strong impact, the connection between the adjustment mechanism and the inner wall of the bottom of the body or the root of the seat back may break, threatening the life safety of the driver and passengers. Utility Model Content
[0004] The purpose of the utility model is to provide a high-rigidity automobile seat frame to solve the problems raised in the above-mentioned background technology.
[0005] In order to solve the above technical problems, the utility model provides a high-rigidity automobile seat frame, including a seat cushion frame and a backrest frame rotatably connected to the rear side wall of the seat cushion frame, an adjustment mechanism is installed at the bottom of the seat cushion frame, a fixing plate is provided at the bottom of the adjustment mechanism, a longitudinal slide groove 1 is provided at the center of the top of the fixing plate, longitudinal slide grooves 2 are provided on both sides of the slide groove 1, a longitudinal slide groove 3 is provided on the side of the slide groove 2 away from the slide groove 1, a transversely penetrating sliding channel 1 is provided between the slide grooves 1 and 2, a transversely penetrating sliding channel 2 is provided between the slide grooves 2 and 3, a buffer mechanism 1 is provided inside the fixed plate, the buffer mechanism 1 includes a rack fixedly connected to the inner wall of the bottom of the slide groove 1, and the top of the rack is meshed with A plurality of gears, a rotating shaft 1 passes through the center of one side wall of the plurality of gears, a fixed frame is sleeved on the outer arc walls at both ends of the rotating shaft 1, and rollers are rotatably connected to the two side walls of the rotating shaft 1, a horizontal sliding groove 4 is provided on one side wall of the gear, and a slider 1 is slidably connected to the end of the inner wall of the sliding groove 4 away from the rotating shaft 1, a spring telescopic rod 1 is fixedly connected to the side wall of the slider 1 close to the rotating shaft 1, and a limiting column is fixedly connected to the side wall of the slider 1 away from the inner wall of the sliding groove 1, and a limiting plate 1 is coaxially provided on the side of the gear close to the limiting column, and the limiting plate 1 is fixedly connected to the outer arc wall of the rotating shaft 1, and a coil spring is rotatably connected to the side wall of the limiting plate 1 away from the gear, and a limiting plate 2 is rotatably connected to the side wall of the coil spring away from the limiting plate 1.
[0006] Furthermore, a transversely penetrating, spiral slide groove five is provided on the side wall of the limit plate one, and an end of the limit column away from the slider one is slidably connected in the slide groove five, an end of the coil spring located on the inner side is fixedly connected to the outer arc wall of the rotating shaft one, and the other end of the coil spring located on the outer side is provided with a baffle extending outward, the bottom of the end of the limit column away from the slider one abuts against the top of the baffle, the limit plate one and the limit plate two are both fixedly connected to the outer arc wall of the rotating shaft one, the front ends of the inner walls of the slide groove one, the slide groove three, the sliding channel one and the bottom of the sliding channel two are all higher than the rear ends, the inner wall of the bottom of the slide groove two is in a horizontal state, a transversely penetrating channel three is provided on the side wall of the fixed frame close to the roller, the outer arc wall of the rotating shaft one is fixedly connected with a limiting block one at the position corresponding to the fixed frame, the limiting block one is slidably connected to the channel three, and the fixed frame is located between the roller and the gear.
[0007] Furthermore, a transverse slide groove 6 is provided on the rear side wall of the backrest frame, a transverse slide groove 7 is provided on the rear end of the top of the fixed plate, and a buffer mechanism 2 is provided on the rear side of the backrest frame, and the buffer mechanism 2 includes two sliders 2 slidably connected to the slide groove 6, and two sliders 2 with the same structure are slidably connected in the slide groove 7, and a spring telescopic rod 2 is fixedly connected to a side wall of the two sliders 2 away from each other, and two fixing rings 1 are fixedly connected to a side wall of the slider 2 away from the slide groove 6, and the two fixing rings 1 are rotatably connected to the same fixing ring 2 on the side wall close to each other, and the front and rear sides of one end of the fixing ring 2 away from the fixing ring 1 are fixedly connected to a limiting block 2, and a rotating rod 1 is rotatably connected between the fixing rings 2 on the two sliders 2 located in different slide grooves and not on the same side, and a rotating rod 2 is rotatably connected between the fixing rings 2 on the other two sliders 2, and the two ends of the rotating rod 1 and the rotating rod 2 are respectively rotatably connected between their corresponding two limit blocks 2.
[0008] Furthermore, the rotating rod 1 and the rotating rod 2 have the same structure, the two sliding blocks 2 located in different slide grooves and on the same side are located in a straight line, the fixing ring 2 can rotate in the horizontal longitudinal direction, and the rotating rod 1 and the rotating rod 2 can both rotate in the horizontal transverse direction.
[0009] Furthermore, a groove 1 with the same structure is provided on one side wall where the rotating rod 1 and the rotating rod 2 are close to each other, and a same rotating shaft 2 is rotatably connected at the center of the side wall where the rotating rod 1 and the rotating rod 2 are close to each other.
[0010] Furthermore, both ends of the rotating rod 1 and the rotating rod 2 away from the rotating shaft 2 are retractable, that is, when the backrest frame rotates toward the direction of the buffer mechanism 2, the horizontal angle between the rotating rod 1 and the rotating rod 2 will gradually decrease. As the backrest frame rotates further, the rotating rod 1 and the rotating rod 2 will adaptively retract.
[0011] Furthermore, the bottom of the adjusting mechanism is fixedly connected to the tops of the plurality of fixing frames, and one end of the plurality of fixing frames away from the adjusting mechanism is slidably connected to the second slide groove.
[0012] Furthermore, the rotating shaft 1 is rotatably connected to the gear, the limiting plate 2 abuts against the inner wall of the slide groove 1, and the fixed frame located at the rear end abuts against the rear inner wall of the slide groove 2 in the initial state. A hemispherical fixing block is provided at the rear end of the bottom of the adjustment mechanism, and a groove 2 is provided at the corresponding position on the top of the fixing plate, and the hemispherical fixing block fits with the groove 2.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] 1. Through the buffer mechanism 1, when the vehicle hits an object, its own inertia during the collision affects the seat, and the seat is suddenly subjected to a force toward the front of the vehicle. At this time, multiple buffer mechanisms 1 convert the force generated by the inertia into power for the gear rotation, and then the coil spring absorbs the force. Combined with the slope design with high front and low back, the force is gradually eliminated. Compared with traditional seats, this avoids the deformation or even breakage of the components in the mechanism of traditional seat adjustment due to the huge force brought by inertia during the collision, resulting in poor connection between the seat itself and the vehicle body, thereby threatening the safety of the occupants;
[0015] 2. Through the second buffer mechanism, after the inertial force on the occupants is weakened and they are pulled back by the seat belt and exert a force on the seat back, a number of spring telescopic rods absorb and dissipate energy to absorb and dissipate the force on the seat back, thereby reducing the impact on the root connection of the backrest. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 The figure is a schematic diagram of the overall structure of a high-rigidity automobile seat frame;
[0017] Figure 2 A transverse cross-sectional view of the internal structure of a fixing plate in a high-rigidity automobile seat frame;
[0018] Figure 3 for Figure 2 Exploded view of the structure at A in the middle;
[0019] Figure 4 for Figure 3 A magnified view of the structure at point B.
[0020] In the figure:
[0021] 10. Seat cushion frame; 11. Backrest frame; 12. Fixing plate; 13. Adjustment mechanism;
[0022] 20. Buffer mechanism 1; 21. Fixed frame; 22. Roller; 23. Rotating shaft 1; 24. Gear; 25. Rack; 26. Limiting plate 1; 27. Coil spring; 28. Limiting plate 2;
[0023] 30. A spring telescopic rod; 31. A slider; 32. A limiting column;
[0024] 40. Buffer mechanism 2; 41. Sliding block 2; 42. Spring telescopic rod 2; 43. Fixed ring 1; 44. Fixed ring 2; 45. Rotating rod 1; 46. Rotating rod 2. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] See also Figure 1-4 , the utility model provides a technical solution:
[0027] See also Figure 1-4 As shown, a high-rigidity automobile seat frame includes a cushion frame 10 and a backrest frame 11 rotatably connected to the rear side wall of the cushion frame 10, an adjustment mechanism 13 is installed at the bottom of the cushion frame 10, a fixing plate 12 is provided at the bottom of the adjustment mechanism 13, a longitudinal slide groove 1 is provided at the center of the top of the fixing plate 12, longitudinal slide grooves 2 are provided on both sides of the slide groove 1, a longitudinal slide groove 3 is provided on the side of the slide groove 2 away from the slide groove 1, a transversely penetrating sliding channel 1 is provided between the slide grooves 1 and 2, a transversely penetrating sliding channel 2 is provided between the slide grooves 2 and 3, a buffer mechanism 1 20 is provided inside the fixing plate 12, the buffer mechanism 1 20 includes a rack 25 fixedly connected to the inner wall of the bottom of the slide groove 1, a plurality of gears 24 are meshed at the top of the rack 25, a rotating shaft 1 23 is penetrated at the center of one side wall of the plurality of gears 24, the rotating shaft A fixed frame 21 is sleeved on the outer arc walls at both ends of the shaft 23, and rollers 22 are rotatably connected to the two side walls of the rotating shaft 23. A horizontal slide groove four is provided on one side wall of the gear 24, and a slider 31 is slidably connected to the end of the inner wall of the slide groove four away from the rotating shaft 23, and a spring telescopic rod 30 is fixedly connected to the side wall of the slider 31 close to the rotating shaft 23, and a limiting column 32 is fixedly connected to the side wall of the slider 31 away from the inner wall of the slide groove one. A limiting plate 26 is coaxially provided on the side of the gear 24 close to the limiting column 32, and the limiting plate 26 is fixedly connected to the outer arc wall of the rotating shaft 23. A coil spring 27 is rotatably connected to the side wall of the limiting plate 26 away from the gear 24, and a limiting plate 28 is rotatably connected to the side wall of the coil spring 27 away from the limiting plate 26. The buffer mechanism 20 is used to absorb the forward force generated by inertia when the vehicle collides.
[0028] See also Figure 1-4As shown, a high-rigidity automobile seat frame is provided, the side wall of the limit plate 1 26 is provided with a transversely penetrating, spiral slide groove 5, the end of the limit column 32 away from the slider 1 31 is slidably connected in the slide groove 5, the end of the coil spring 27 located on the inner side is fixedly connected to the outer arc wall of the rotating shaft 1 23, the other end of the coil spring 27 located on the outer side is provided with a baffle extending outward, the bottom of the end of the limit column 32 away from the slider 1 31 is in contact with the top of the baffle, the limit plate 1 26 and the limit plate 28 are both fixedly connected to the outer arc wall of the rotating shaft 1 23, and the slide is fixedly connected to the outer arc wall of the rotating shaft 1 23. The front ends of the inner walls at the bottom of groove one, slide groove three, sliding channel one and sliding channel two are all higher than the rear ends. The inner wall at the bottom of slide groove two is in a horizontal state. A transversely penetrating channel three is provided on the side wall of the fixed frame 21 close to the roller 22. The outer arc wall of the rotating shaft one 23 is fixedly connected to the limiting block one at the position corresponding to the fixed frame 21. The limiting block one is slidably connected to the channel three. The fixed frame 21 is located between the roller 22 and the gear 24. Since the radius of the coil spring 27 will gradually decrease when it contracts, the slide groove five is used to guide the limiting column 32 to compress the coil spring 27.
[0029] See also Figure 1-4 As shown, a high-rigidity automobile seat frame is provided, wherein a transverse slide groove 6 is provided on the rear side wall of the backrest frame 11, a transverse slide groove 7 is provided at the top rear end of the fixing plate 12, a buffer mechanism 2 40 is provided at the rear side of the backrest frame 11, the buffer mechanism 2 40 comprises two sliders 2 41 slidably connected to the slide groove 6, two sliders 2 41 with the same structure are slidably connected in the slide groove 7, a spring telescopic rod 2 42 is fixedly connected to one side wall of the two sliders 2 41 away from each other, two fixing rings 1 43 are fixedly connected to one side wall of the slider 2 41 away from the slide groove 6, and the two fixing rings 1 43 are close to each other. A same fixing ring 2 44 is rotatably connected to one side wall, and the front and rear sides of one end of the fixing ring 2 44 away from the fixing ring 1 43 are fixedly connected to the limiting block 2, a rotating rod 1 45 is rotatably connected between the fixing rings 2 44 on two sliders 2 41 located in different slide grooves and not on the same side, and a rotating rod 2 46 is rotatably connected between the fixing rings 2 44 on the other two sliders 2 41, and both ends of the rotating rod 1 45 and the rotating rod 2 46 are respectively rotatably connected between their corresponding two limiting blocks 2, and the buffer mechanism 2 40 is used to absorb the impact force of the driver or passenger on the backrest frame 11 after being pulled back by the safety belt.
[0030] See also Figure 1-4 As shown, a high-rigidity automobile seat frame, the rotating rod 1 45 and the rotating rod 2 46 have the same structure, the two sliders 2 41 located in different slide grooves and on the same side are located in a straight line, the fixed ring 2 44 can rotate in the horizontal longitudinal direction, the rotating rod 1 45 and the rotating rod 2 46 can both rotate in the horizontal transverse direction, and the rotation trajectory of the fixed ring 2 44 is perpendicular to the rotation trajectory of the rotating rod 1 45 and the rotating rod 2 46.
[0031] See also Figure 1-4 As shown, a high-rigidity automobile seat frame, a groove 1 with the same structure is provided on a side wall where the rotating rod 1 45 and the rotating rod 2 46 are close to each other, and the center of the side wall where the rotating rod 1 45 and the rotating rod 2 46 are close to each other is rotatably connected with the same rotating shaft 2, and the groove 1 is to prevent the rotating rod 1 45 and the rotating rod 2 46 from interfering with each other when rotating.
[0032] See also Figure 1-4 As shown, a high-rigidity automobile seat frame, the two ends of the rotating rod 1 45 and the rotating rod 2 46 away from the rotating shaft 2 are both retractable, that is, when the backrest frame 11 rotates toward the direction of the buffer mechanism 2 40, the horizontal angle between the rotating rod 1 45 and the rotating rod 2 46 will gradually decrease, and as the backrest frame 11 further rotates, the rotating rod 1 45 and the rotating rod 2 46 will adaptively retract, and the two ends of the rotating rod 1 45 and the rotating rod 2 46 at the center of the principle can be adaptively contracted, and will not be affected even when the backrest frame 11 is adjusted.
[0033] See also Figure 1-4 As shown, a high-rigidity automobile seat frame is shown, wherein the bottom of the adjusting mechanism 13 is fixedly connected to the top of a plurality of the fixing frames 21, and one end of the plurality of the fixing frames 21 away from the adjusting mechanism 13 is slidably connected in a slide groove 2, and the seat cushion frame 10 and the buffer mechanism 20 are linked by the connection between the adjusting mechanism 13 at the bottom of the seat cushion frame 10 and the fixing frame 21.
[0034] See also Figure 1-4 As shown, a high-rigidity automobile seat frame, the rotating shaft 23 is rotatably connected with the gear 24, the limiting plate 28 abuts against the inner wall of the slide groove 1, and the fixed frame 21 located at the rear end abuts against the rear inner wall of the slide groove 2 in the initial state, a hemispherical fixing block is provided at the rear end of the bottom of the adjustment mechanism 13, and a groove 2 is provided at the corresponding position of the top of the fixing plate 12, the hemispherical fixing block fits with the groove 2, and the hemispherical fixing block can ensure that the seat cushion frame 10 will not trigger the buffer mechanism 20 during adjustment, and the buffer mechanism 20 can operate normally when the vehicle is subjected to a strong impact.
[0035] Working principle:
[0036] When the vehicle itself hits an object, first of all, under the action of inertia, the seat will be subjected to a forward force. At this time, the fixed frame 21 in the buffer mechanism 20 is driven by the adjustment mechanism 13, and the hemispherical fixed block is forced to disengage from the groove 2. The fixed frame 21 drives the gear 24 to rotate so that the limit column 32 continuously tightens the coil spring 27, and cooperates with the obliquely arranged slide groove 1 to gradually eliminate the force generated by inertia. After the inertial force gradually subsides, the occupants will be pulled back by the safety belt to generate a force on the backrest frame 11. At this time, the rotating rod 1 45 and the rotating rod 2 46 in the buffer mechanism 2 40 are compressed, driving the sliders 2 41 at both ends thereof to slide in their corresponding slide grooves. At the same time, the spring telescopic rod 2 42 is compressed to absorb the force, thereby reducing the impact on the backrest frame 11.
Claims
1. A high-rigidity automobile seat frame, comprising a seat cushion frame (10) and a backrest frame (11) rotatably connected to the rear side wall of the seat cushion frame (10), an adjustment mechanism (13) is installed at the bottom of the seat cushion frame (10), a fixing plate (12) is provided at the bottom of the adjustment mechanism (13), a longitudinal slide groove 1 is provided at the top center of the fixing plate (12), longitudinal slide grooves 2 are provided on both sides of the slide groove 1, a longitudinal slide groove 3 is provided on the side of the slide groove 2 away from the slide groove 1, a transversely penetrating sliding channel 1 is provided between the slide grooves 1 and 2, a transversely penetrating sliding channel 2 is provided between the slide grooves 2 and 3, a buffer mechanism 1 (20) is provided inside the fixing plate (12), characterized in that: The buffer mechanism (20) comprises a rack (25) fixedly connected to the inner wall at the bottom of the slide groove, a plurality of gears (24) are meshed on the top of the rack (25), a rotating shaft (23) is passed through the center of one side wall of the plurality of gears (24), a fixed frame (21) is sleeved on the outer arc walls at both ends of the rotating shaft (23), rollers (22) are rotatably connected to the two side walls of the rotating shaft (23), a horizontal slide groove (4) is provided on one side wall of the gear (24), a slider (31) is slidably connected to the end of the inner wall of the slide groove (4) away from the rotating shaft (23), and the slider (31) is slidably connected to the end of the inner wall of the slide groove (25) away from the rotating shaft (23), and the slider (31) is slidably connected to the rotating shaft (23). A spring telescopic rod (30) is fixedly connected to a side wall close to the rotating shaft (23) one, a limiting column (32) is fixedly connected to a side wall of the slider (31) away from the inner wall of the slide groove one, a limiting plate (26) is coaxially provided on a side of the gear (24) close to the limiting column (32), the limiting plate (26) is fixedly connected to the outer arc wall of the rotating shaft (23), a coil spring (27) is rotatably connected to a side wall of the limiting plate (26) away from the gear (24), and the coil spring (27) is rotatably connected to a limiting plate (28) on a side wall away from the limiting plate (26) one.
2. A high-rigidity automobile seat frame as claimed in claim 1, characterized in that: The side wall of the limit plate 1 (26) is provided with a transversely penetrating, spiral slide groove 5, the end of the limit column (32) away from the slider 1 (31) is slidably connected in the slide groove 5, the end of the coil spring (27) located on the inner side is fixedly connected to the outer arc wall of the rotating shaft 1 (23), and the other end of the coil spring (27) located on the outer side is provided with a baffle extending outward, the bottom of the end of the limit column (32) away from the slider 1 (31) is in contact with the top of the baffle, and the limit plate 1 (26) and the limit plate 2 (28) are fixed. Connected to the outer arc wall of the rotating shaft 1 (23), the front ends of the inner walls of the bottoms of the slide groove 1, the slide groove 3, the sliding channel 1 and the sliding channel 2 are all higher than the rear ends, the inner wall of the bottom of the slide groove 2 is in a horizontal state, a transversely penetrating channel 3 is provided on the side wall of the fixed frame (21) close to the roller (22), the outer arc wall of the rotating shaft 1 (23) is fixedly connected to the position of the fixed frame (21), the limit block 1 is slidably connected to the channel 3, and the fixed frame (21) is located between the roller (22) and the gear (24).
3. A high-rigidity automobile seat frame as claimed in claim 1, characterized in that: A transverse slide groove 6 is provided on the rear side wall of the backrest frame (11), a transverse slide groove 7 is provided at the top rear end of the fixed plate (12), and a buffer mechanism 2 (40) is provided on the rear side of the backrest frame (11), the buffer mechanism 2 (40) comprises two sliders 2 (41) slidably connected to the slide groove 6, two sliders 2 (41) with the same structure are slidably connected in the slide groove 7, a spring telescopic rod 2 (42) is fixedly connected to the side wall away from each other of the two sliders 2 (41), two fixing rings 1 (43) are fixedly connected to the side wall away from the slide groove 6 of the slider 2 (41), and the two The same fixing ring 2 (44) is rotatably connected on one side wall of the fixing ring 1 (43) close to each other, and the front and rear sides of the fixing ring 2 (44) away from the fixing ring 1 (43) are fixedly connected to the limiting block 2, and the fixing rings 2 (44) on the two sliding blocks 2 (41) located in different slide grooves and not on the same side are rotatably connected between the fixing rings 2 (44), and the fixing rings 2 (44) on the other two sliding blocks 2 (41) are rotatably connected between the fixing rings 2 (44), and the two ends of the rotating rod 1 (45) and the rotating rod 2 (46) are respectively rotatably connected between the two corresponding limiting blocks 2.
4. A high-rigidity automobile seat frame as claimed in claim 3, characterized in that: The rotating rod 1 (45) and the rotating rod 2 (46) have the same structure. The two sliding blocks 2 (41) located in different slide grooves and on the same side are located in a straight line. The fixing ring 2 (44) can rotate in the horizontal longitudinal direction. The rotating rod 1 (45) and the rotating rod 2 (46) can both rotate in the horizontal transverse direction.
5. A high-rigidity automobile seat frame as claimed in claim 3, characterized in that: A groove 1 with the same structure is provided on a side wall where the rotating rod 1 (45) and the rotating rod 2 (46) are close to each other, and a same rotating shaft 2 is rotatably connected at the center of the side wall where the rotating rod 1 (45) and the rotating rod 2 (46) are close to each other.
6. A high-rigidity automobile seat frame as claimed in claim 5, characterized in that: Both ends of the rotating rod 1 (45) and the rotating rod 2 (46) away from the rotating shaft 2 are retractable, that is, when the backrest frame (11) rotates toward the direction of the buffer mechanism 2 (40), the horizontal angle between the rotating rod 1 (45) and the rotating rod 2 (46) will gradually decrease. As the backrest frame (11) further rotates, the rotating rod 1 (45) and the rotating rod 2 (46) will adaptively retract.
7. The high-rigidity automobile seat frame according to claim 1, characterized in that: The bottom of the adjusting mechanism (13) is fixedly connected to the tops of a plurality of the fixing frames (21), and one end of the plurality of the fixing frames (21) away from the adjusting mechanism (13) is slidably connected to the second slide groove.
8. The high-rigidity automobile seat frame according to claim 1, characterized in that: The rotating shaft 1 (23) is rotatably connected to the gear (24), the limiting plate 2 (28) is in contact with the inner wall of the first slide groove, and the fixed frame (21) located at the rear end is in contact with the rear inner wall of the second slide groove in the initial state. A hemispherical fixing block is provided at the rear end of the bottom of the adjustment mechanism (13), and a groove 2 is provided at a corresponding position on the top of the fixing plate (12), and the hemispherical fixing block fits with the groove 2.