Automobile seat with waist support

Abstract

The utility model discloses an automobile seat with a waist support, and relates to the technical field of automobile seats. Comprising a cushion, a backrest and a waist support, an adjusting cavity is formed in the inner side of the backrest, an adjusting mechanism is arranged in the adjusting cavity, two adjusting sliding ways are formed in the front side wall of the adjusting cavity, a guide plate is arranged on the rear side of the waist support, and two clamping mechanisms are hinged to the rear side end of the waist support and the rear side end of the guide plate; and the rear side ends of the two clamping mechanisms penetrate through the adjusting slide way and extend into the adjusting cavity. An adjusting mechanism is arranged in the adjusting cavity, a clamping mechanism is arranged on the rear side of the waist support, the rear side end of the clamping mechanism penetrates through the adjusting sliding way and is matched with connecting inserting grooves in the front sides of an adjusting sliding plate and an auxiliary sliding plate in the adjusting mechanism, and the waist support can be adjusted in the vertical direction under the action of the adjusting mechanism; meanwhile, after the waist support moves to the lowest end in the vertical direction, the waist support can extend to the direction of the guide sliding way under the action of the connecting sliding block, and the inclination angle of the waist support can be conveniently adjusted.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, and in particular to an automotive seat with lumbar support. Background Technology

[0002] In modern automotive design, seat comfort and ergonomics are crucial factors influencing the driving experience. However, traditional car seats often neglect the importance of lumbar support in their design. Most standard car seats do not come with built-in lumbar support, leaving drivers and passengers without sufficient support for their lower backs during long drives, easily leading to fatigue and discomfort. To solve this problem, users usually need to purchase additional lumbar support products.

[0003] Most lumbar support products currently on the market are freestanding designs, typically placed directly behind the lower back of the seat. While these lumbar supports offer some degree of lumbar support, they have a significant drawback: they lack fine-tuning. Since everyone's height, body type, and sitting posture differ, their lumbar support needs also vary. A fixed-position lumbar support may not meet the needs of all users, resulting in inadequate support and potentially even exacerbating lower back discomfort.

[0004] Therefore, this application proposes a car seat with lumbar support to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a car seat with lumbar support, which solves the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a car seat with lumbar support, comprising a seat cushion, a backrest, and a lumbar support. The backrest is located behind the seat cushion, and the lumbar support is located above the seat cushion. An adjustment cavity is provided on the inner side of the backrest, and an adjustment mechanism is provided within the adjustment cavity. Two adjustment slides are provided on the front side wall of the adjustment cavity. A guide plate is provided on the rear side of the lumbar support. The guide plate is arc-shaped and located at the connection between the seat cushion and the backrest. Two guide slides are provided on the front side wall of the guide plate. Two connecting sliders are fixedly connected to the rear side wall of the lumbar support. The rear ends of the connecting sliders extend into the guide slides, and the connecting sliders are slidably connected to the guide slides. The cross-sections of the connecting sliders and the guide slides are both T-shaped. Two locking mechanisms are hinged to the rear ends of the lumbar support and the rear ends of the guide plate. The rear ends of both locking mechanisms pass through the adjustment slides and extend into the adjustment cavity.

[0007] Preferably, the adjustment mechanism includes an adjustment motor, which is fixed to the upper inner wall of the adjustment cavity. An adjustment screw is fixedly connected to the output end of the adjustment motor. An adjustment slide plate and an auxiliary slide plate are slidably connected inside the adjustment cavity. The auxiliary slide plate is located below the adjustment slide plate and behind the guide plate. The lower end of the adjustment screw passes through the adjustment slide plate and the auxiliary slide plate in sequence and is rotatably connected to the lower inner wall of the adjustment cavity. The adjustment screw is threadedly connected to the adjustment slide plate and slidably connected to the auxiliary slide plate. Two connecting slots are provided at the front ends of both the adjustment slide plate and the auxiliary slide plate. The connecting slots are located behind the adjustment slide. The rear end of the locking mechanism extends into the connecting slot.

[0008] Preferably, the snap-fit ​​mechanism includes a connecting rod, the rear end of which extends into a connecting slot. The upper and lower inner walls of the connecting slot are provided with snap-fit ​​grooves. The connecting rod is provided with an installation hole, which is open at both the upper and lower ends. The installation hole is located inside the connecting slot. Two snap-fit ​​plates are hinged to the rear inner wall of the installation hole, and the front ends of the two snap-fit ​​plates extend into the upper and lower snap-fit ​​grooves, respectively.

[0009] Preferably, a sliding groove is provided on the inner front wall of the mounting hole, and a sliding rod is slidably connected in the sliding groove. Connecting rods are hinged to the rear ends of the upper and lower side walls of the sliding rod. The ends of the two connecting rods away from the sliding rod are respectively hinged to the adjacent side walls of the upper and lower snap-fit ​​plates. A support spring is fixedly connected to the inner front wall of the sliding groove, and the rear end of the support spring is fixedly connected to the front end of the sliding rod.

[0010] Preferably, the support spring is always in a compressed state.

[0011] Preferably, a movable slide is provided on the side wall of the sliding groove, and a lever is provided in the movable slide. The end of the lever near the sliding groove is fixedly connected to the side wall of the sliding rod, and the end of the lever away from the sliding groove extends to the outside of the movable slide.

[0012] Compared with related technologies, the car seat with lumbar support provided by this utility model has the following beneficial effects:

[0013] 1. This utility model provides a car seat with lumbar support. The lumbar support is located above the seat cushion, and an adjustment cavity is located inside the backrest. An adjustment mechanism is located within the adjustment cavity. A locking mechanism is located at the rear of the lumbar support. The rear end of the locking mechanism passes through an adjustment slide and engages with the connecting slots at the front of the adjustment slide and auxiliary slide in the adjustment mechanism. Under the action of the adjustment mechanism, the lumbar support can be adjusted vertically. Simultaneously, when the lumbar support moves vertically to its lowest point, it extends along the guide slide under the action of the connecting slider, facilitating adjustment of the lumbar support's tilt angle. The device can be precisely adjusted according to the user's needs, adapting to users of different heights, body types, and sitting postures, providing personalized lumbar support, and effectively relieving lumbar fatigue and discomfort caused by long-term driving.

[0014] 2. This utility model provides a car seat with lumbar support. In this device, the lumbar support is connected to the adjustment mechanism through a snap-fit ​​plate in the snap-fit ​​mechanism and a snap-fit ​​groove in the connecting slot. When the user does not need the lumbar support, they can move the lever forward, which in turn moves the sliding rod forward in the sliding groove and compresses the support spring. The sliding rod, in conjunction with the connecting rod, moves the upper and lower snap-fit ​​plates into the through hole, thus separating the lumbar support, guide plate, and snap-fit ​​mechanism from the backrest. This ensures that the device can also meet the needs of users who do not require lumbar support. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the backrest structure of this utility model;

[0017] Figure 3 This is a cross-sectional view of the adjustment cavity of this utility model;

[0018] Figure 4 This is a schematic diagram of the adjustment cavity of this utility model cut at another angle;

[0019] Figure 5 For the present utility model Figure 4 Enlarged view of point A in the middle;

[0020] Figure 6 This is a schematic diagram showing the rear structure of the lumbar support of this utility model;

[0021] Figure 7 This is a plan view of the connection between the guide slide and the connecting slider of this utility model;

[0022] Figure 8 This is a schematic diagram showing the location of the connection slot structure of this utility model;

[0023] Figure 9This is a schematic diagram of the snap-fit ​​mechanism of this utility model;

[0024] Figure 10 This is a three-dimensional cross-sectional view of the snap-fit ​​mechanism of this utility model;

[0025] Figure 11 This is a schematic diagram showing the engagement of the snap-fit ​​mechanism and the connection slot of this utility model.

[0026] In the diagram: 1. Seat cushion; 2. Backrest; 3. Lumbar support; 4. Adjustment chamber; 5. Adjustment slide; 6. Adjustment motor; 7. Adjustment screw; 8. Adjustment slide; 9. Auxiliary slide; 10. Connecting slot; 11. Guide plate; 12. Guide slide; 13. Connecting slider; 14. Snap-fit ​​mechanism; 15. Lever; 16. Snap-fit ​​groove; 17. Connecting rod; 18. Mounting hole; 19. Snap-fit ​​plate; 20. Sliding groove; 21. Sliding rod; 22. Connecting rod; 23. Support spring; 24. Moving slide. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0028] Example:

[0029] Please see Figures 1-11 This utility model provides a technical solution: a car seat with lumbar support, including a seat cushion 1, a backrest 2, and a lumbar support 3. The backrest 2 is located behind the seat cushion 1, and the lumbar support 3 is located above the seat cushion 1. An adjustment cavity 4 is provided inside the backrest 2, and an adjustment mechanism is provided inside the adjustment cavity 4. Two adjustment slides 5 are provided on the front side wall of the adjustment cavity 4. A guide plate 11 is provided on the rear side of the lumbar support 3. The guide plate 11 is arc-shaped and located at the connection between the seat cushion 1 and the backrest 2. Two guide slides 12 are provided on the front side wall of the lumbar support 3. Two connecting sliders 13 are fixedly connected to the rear side wall of the lumbar support 3. The rear end of the connecting slider 13 extends into the guide slide 12. The connecting slider 13 and the guide slide 12 are slidably connected. The cross-section of the connecting slider 13 and the guide slide 12 is T-shaped. The rear end of the lumbar support 3 and the rear end of the guide plate 11 are both hinged with two locking mechanisms 14. The rear ends of the two locking mechanisms 14 pass through the adjustment slide 5 and extend into the adjustment cavity 4.

[0030] The adjustment mechanism includes an adjustment motor 6, which is fixed to the upper inner wall of the adjustment cavity 4. An adjustment screw 7 is fixedly connected to the output end of the adjustment motor 6. An adjustment slide plate 8 and an auxiliary slide plate 9 are slidably connected inside the adjustment cavity 4. The auxiliary slide plate 9 is located below the adjustment slide plate 8 and behind the guide plate 11. The lower end of the adjustment screw 7 passes through the adjustment slide plate 8 and the auxiliary slide plate 9 sequentially and is rotatably connected to the lower inner wall of the adjustment cavity 4. The adjustment screw 7 is threadedly connected to the adjustment slide plate 8 and slidably connected to the auxiliary slide plate 9. Two connecting slots 10 are provided at the front ends of both the adjustment slide plate 8 and the auxiliary slide plate 9. The connecting slots 10 are located behind the adjustment slide rail 5. The rear end of the locking mechanism 14 extends into the connecting slot 10. In use, the lumbar support 3 provides support for the user's waist. When the height of the lumbar support 3 needs to be adjusted, the adjusting motor 6 drives the adjusting screw 7 to rotate. Then, through the cooperation of the adjusting screw 7 and the adjusting slide plate 8, the lumbar support 3 moves in the vertical direction. When the upper end of the connecting slider 13 on the rear side of the lumbar support 3 contacts the upper inner wall of the guide slide 12, the guide plate 11 and the auxiliary slide plate 9 can move upward together with the lumbar support 3. When the height of the lumbar support 3 is lowered, the lower end of the auxiliary slide plate 9 contacts the lower inner wall of the adjusting cavity 4. When the lumbar support 3 continues to move downward, the connecting slider 13 can extend the guide slide 12 to move. At this time, the lower end of the lumbar support 3 moves forward, which can adjust the tilt angle of the lumbar support 3. The device can be precisely adjusted according to the user's needs, and can adapt to users of different heights, body types and sitting postures, providing personalized lumbar support.

[0031] The snap-fit ​​mechanism 14 includes a connecting rod 17, the rear end of which extends into the connecting slot 10. The upper and lower inner walls of the connecting slot 10 are provided with snap-fit ​​grooves 16, and the longitudinal cross-section of the upper and lower snap-fit ​​grooves 16 is triangular. The connecting rod 17 is provided with a mounting hole 18, which is open at both the upper and lower ends and is located in the connecting slot 10. The rear inner wall of the mounting hole 18 is hinged with two snap-fit ​​plates 19, the front ends of which extend into the upper and lower snap-fit ​​grooves 16 respectively, and the snap-fit ​​plates 19 are adapted to the snap-fit ​​grooves 16.

[0032] A sliding groove 20 is provided on the inner front wall of the mounting hole 18. A sliding rod 21 is slidably connected in the sliding groove 20. A connecting rod 22 is hinged to the rear end of the upper and lower side walls of the sliding rod 21. The ends of the two connecting rods 22 away from the sliding rod 21 are respectively hinged to the adjacent side walls of the upper and lower snap-fit ​​plates 19. A support spring 23 is fixedly connected to the inner front wall of the sliding groove 20. The rear end of the support spring 23 is fixedly connected to the front end of the sliding rod 21.

[0033] The support spring 23 is always in a compressed state, ensuring that when the lumbar support 3 is connected to the backrest 2, the snap plate 19 can always be located in the snap groove 16, thereby ensuring the lumbar support 3 is firm.

[0034] A movable slide 24 is provided on the side wall of the sliding groove 20. A lever 15 is installed in the movable slide 24. One end of the lever 15 near the sliding groove 20 is fixedly connected to the side wall of the sliding rod 21, and the other end of the lever 15 away from the sliding groove 20 extends to the outside of the movable slide 24. When disassembly is required, the lever 15 is moved forward, which in turn moves the sliding rod 21 forward in the sliding groove 20 and compresses the support spring 23. The sliding rod 21 cooperates with the connecting rod 22 to move the upper and lower locking plates 19 into the through hole, thereby separating the lumbar support 3, the guide plate 11, and the locking mechanism 14 from the backrest 2. This ensures that the device can also meet the needs of users who do not require the lumbar support 3.

[0035] Working principle: In use, the lumbar support 3 provides support for the user's waist. When the height of the lumbar support 3 needs to be adjusted, the adjusting motor 6 drives the adjusting screw 7 to rotate. Then, through the cooperation of the adjusting screw 7 and the adjusting slide plate 8, the lumbar support 3 moves up and down. When the upper end of the connecting slider 13 on the rear side of the lumbar support 3 contacts the upper inner wall of the guide slide 12, the guide plate 11 and the auxiliary slide plate 9 can move upward together with the lumbar support 3. When the height of the lumbar support 3 is lowered, the lower end of the auxiliary slide plate 9 contacts the lower inner wall of the adjusting cavity 4. When the lumbar support 3 continues to move downward, the connecting slider 13 can extend the guide slide 12 to move. At this time, the lower end of the lumbar support 3 moves forward, which can adjust the tilt angle of the lumbar support 3. The device can be precisely adjusted according to the user's needs, and can adapt to users of different heights, body types and sitting postures, providing personalized lumbar support and effectively relieving lumbar fatigue and discomfort caused by long-term driving. In the device, the lumbar support 3 is connected to the adjustment mechanism via the engaging plate 19 in the engaging mechanism 14 and the engaging groove 16 in the connecting slot 10. When the user does not need the lumbar support 3, they can move the lever 15 forward, which in turn moves the sliding rod 21 forward in the sliding groove 20 and compresses the support spring 23. The sliding rod 21, in conjunction with the connecting rod 22, moves the upper and lower engaging plates 19 into the through hole, thus separating the lumbar support 3, the guide plate 11, and the engaging mechanism 14 from the backrest 2. This ensures that the device can still meet the needs of users who do not require the lumbar support 3.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A car seat with a lumbar support, comprising a seat cushion (1), a backrest (2) and a lumbar support (3), characterized in that: The backrest (2) is located behind the seat cushion (1), and the lumbar support (3) is located above the seat cushion (1). An adjustment cavity (4) is provided inside the backrest (2), and an adjustment mechanism is provided inside the adjustment cavity (4). Two adjustment slides (5) are provided on the front side wall of the adjustment cavity (4). A guide plate (11) is provided behind the lumbar support (3). The guide plate (11) is arc-shaped and located at the connection between the seat cushion (1) and the backrest (2). Two guide slides (12) are provided on the front side wall of the guide plate (11). The rear side wall of the waist support (3) is fixedly connected to two connecting sliders (13). The rear end of the connecting slider (13) extends into the guide slide (12). The connecting slider (13) is slidably connected to the guide slide (12). The cross-sections of the connecting slider (13) and the guide slide (12) are both T-shaped. The rear end of the waist support (3) and the rear end of the guide plate (11) are both hinged to two locking mechanisms (14). The rear ends of the two locking mechanisms (14) pass through the adjustment slide (5) and extend into the adjustment cavity (4).

2. The automobile seat with a lumbar support according to claim 1, characterized in that: The adjustment mechanism includes an adjustment motor (6), which is fixed on the upper inner wall of the adjustment cavity (4). An adjustment screw (7) is fixedly connected to the output end of the adjustment motor (6). An adjustment slide plate (8) and an auxiliary slide plate (9) are slidably connected inside the adjustment cavity (4). The auxiliary slide plate (9) is located below the adjustment slide plate (8) and behind the guide plate (11). The lower end of the adjustment screw (7) passes through the adjustment slide plate (8) and the auxiliary slide plate (9) in sequence and is rotatably connected to the lower inner wall of the adjustment cavity (4). The adjustment screw (7) is threadedly connected to the adjustment slide plate (8) and slidably connected to the auxiliary slide plate (9). Two connection slots (10) are opened at the front ends of the adjustment slide plate (8) and the connection slots (10) are located behind the adjustment slide (5). The rear end of the snap-fit ​​mechanism (14) extends into the connection slots (10).

3. The automobile seat with a lumbar support according to claim 2, characterized in that: The snap-fit ​​mechanism (14) includes a connecting rod (17), the rear end of which extends into the connecting slot (10). The upper and lower inner walls of the connecting slot (10) are provided with snap-fit ​​grooves (16). The connecting rod (17) is provided with an installation hole (18), which is open at both the upper and lower ends. The installation hole (18) is located in the connecting slot (10). The rear inner wall of the installation hole (18) is hinged with two snap-fit ​​plates (19), the front ends of which extend into the upper and lower snap-fit ​​grooves (16) respectively.

4. The seat cushion of claim 3, wherein: A sliding groove (20) is provided on the inner front wall of the mounting hole (18). A sliding rod (21) is slidably connected in the sliding groove (20). A connecting rod (22) is hinged to the rear end of the upper and lower side walls of the sliding rod (21). The ends of the two connecting rods (22) away from the sliding rod (21) are respectively hinged to the adjacent side walls of the upper and lower snap-fit ​​plates (19). A support spring (23) is fixedly connected to the inner front wall of the sliding groove (20). The rear end of the support spring (23) is fixedly connected to the front end of the sliding rod (21).

5. The seat of claim 4, wherein: The support spring (23) is always in a compressed state.

6. The seat of claim 4 wherein: The sliding groove (20) has a movable slide (24) on its side wall. A lever (15) is provided in the movable slide (24). The end of the lever (15) near the sliding groove (20) is fixedly connected to the side wall of the sliding rod (21). The end of the lever (15) away from the sliding groove (20) extends to the outside of the movable slide (24).

Images