An adjustable height car seat headrest

Abstract

The utility model discloses an adjustable height's car seat headrest, including seat back, seat back inside one side fixed mounting has motor no.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat accessories technology, and in particular to an adjustable height automotive seat headrest. Background Technology

[0002] As an important component of car seats, car seat headrests play a crucial role in improving the comfort and safety of drivers and passengers. During vehicle operation, especially in the event of a collision, a headrest of appropriate height can effectively reduce neck injuries to drivers and passengers.

[0003] Currently available height-adjustable car seat headrests still have the following problems:

[0004] 1. Most height-adjustable car seat headrests use a manual plug-in adjustment method, which results in inconvenient operation, low adjustment precision, and affects driving and riding comfort and the satisfaction of personalized needs, thus leading to poor structural stability and reliability.

[0005] 2. Some height-adjustable car seat headrests do not have angle adjustment function, which affects the personalized needs of drivers and passengers for head support angle, which is not conducive to improving the comfort and adaptability of use, and makes it difficult to balance the convenience and practicality of height and angle adjustment. Utility Model Content

[0006] The purpose of this utility model is to provide an adjustable height car seat headrest, which solves the problem that most existing adjustable height car seat headrests adopt a manual plug-in adjustment method, resulting in inconvenient operation, low adjustment accuracy, and lack of angle adjustment function, thus affecting the personalized needs of drivers and passengers for head support angle.

[0007] To achieve the above objectives, an adjustable height car seat headrest is provided, including a seat backrest. A motor is fixedly installed on one side inside the seat backrest. The output end of the motor is connected to a rotating shaft via a coupling. A gear is fixedly installed at the front end of the rotating shaft. A lifting assembly is provided inside the seat backrest.

[0008] The lifting assembly includes a sliding block, a sliding groove, a gear rack, and a limiting block. The sliding block is fixedly installed at the bottom of the seat back. Sliding grooves are provided on both sides of the sliding block. A gear rack is slidably installed in the sliding block. Limiting blocks are fixedly installed on both sides of the gear rack. The limiting blocks are slidably installed in the sliding grooves. The gear rack meshes with a gear.

[0009] According to the aforementioned height-adjustable car seat headrest, a connecting block is fixedly installed at the upper end of the gear rack, and an angle adjustment component is provided inside the connecting block. The angle adjustment component includes an electric push rod, a slide rod, a second motor, a second gear, a placement groove, a second rotating shaft, and a slider.

[0010] According to the adjustable height car seat headrest, two slide rods are fixedly installed at both ends on one side of the connecting block, and an electric push rod is fixedly installed in the middle of one side of the connecting block.

[0011] According to the aforementioned height-adjustable car seat headrest, an extension of the electric push rod is fixedly mounted with a slider, which is slidably mounted on two slide rods.

[0012] According to the adjustable height car seat headrest, a second motor is fixedly installed on the slider, the output end of the second motor is connected to a second rotating shaft via a coupling, and a second gear is fixedly installed through a connecting block at the front end of the second rotating shaft.

[0013] According to the adjustable height car seat headrest, a placement groove is provided on one side of the connecting block, and the placement groove is adapted to the gear.

[0014] According to the adjustable height car seat headrest, the headrest body is slidably mounted on the connecting block, and a cushion is provided at the front end of the headrest body.

[0015] According to the adjustable height car seat headrest, a gear groove is provided on one side of the headrest body, and the gear groove meshes with a gear.

[0016] The above-mentioned solution has the following beneficial effects:

[0017] 1. This patent, by setting up a motor, a rotating shaft, a gear, and a lifting assembly, enables the electric adjustment of the headrest height through motor drive during use. The gear meshing transmission ensures the smoothness and accuracy of the adjustment process, while the cooperation between the limit block and the slide groove effectively restricts the movement trajectory of the gear rack, avoiding deviation and jamming during adjustment, and significantly improving the stability and reliability of the structure operation.

[0018] 2. This patent, by setting an angle adjustment component, allows for flexible adjustment of the headrest body's tilt angle during use to conform to the curve of the driver's and passenger's head and neck, alleviate fatigue, and meet individual needs. It also enables automated and precise, stable angle adjustment, which improves user comfort and adaptability, and significantly enhances convenience and practicality.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0021] Figure 1 This is a schematic diagram of an adjustable height car seat headrest according to the present invention.

[0022] Figure 2 This is a schematic diagram of the interior of the seat back of an adjustable height car seat headrest according to the present invention.

[0023] Figure 3 This is a schematic diagram of a gear rack for an adjustable height car seat headrest according to the present invention;

[0024] Figure 4 This is a schematic diagram of the internal structure of the connecting block of an adjustable height car seat headrest according to this utility model.

[0025] Figure 5 This is a schematic diagram of the gear groove of an adjustable height car seat headrest according to the present invention.

[0026] Legend:

[0027] 1. Seat backrest; 2. Connecting block; 3. Cushion; 4. Headrest body; 5. Motor 1; 6. Rotating shaft 1; 7. Gear 1; 8. Sliding block; 9. Slide groove; 10. Gear rack; 11. Limiting block; 12. Electric push rod; 13. Slide rod; 14. Motor 2; 15. Gear 2; 16. Placement slot; 17. Rotating shaft 2; 18. Slider; 19. Gear groove. Detailed Implementation

[0028] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0029] Reference Figure 1-5This utility model discloses an adjustable height car seat headrest, including a seat back 1. A motor 5 is fixedly installed on one side inside the seat back 1. The output end of the motor 5 is connected to a rotating shaft 6 via a coupling. A gear 7 is fixedly installed at the front end of the rotating shaft 6. A lifting assembly is provided inside the seat back 1, which includes a sliding block 8, a sliding groove 9, a gear rack 10, and a limiting block 11. A sliding block 8 is fixedly installed at the bottom inside the seat back 1. Sliding grooves 9 are provided on both sides of the sliding block 8. A gear rack 10 is slidably installed inside the sliding block 8. Limiting blocks 11 are fixedly installed on both sides of the gear rack 10 and are slidably installed in the sliding grooves 9. The gear rack 10 meshes with the gear 7. In use, the drive structure consisting of motor 5, shaft 6, and gear 7 is integrated into the seat back 1. Together with the lifting assembly consisting of sliding block 8, gear rack 10, and limiting block 11, it realizes electric drive for height adjustment, eliminating the inconvenience of traditional manual plug-and-play adjustment. The meshing transmission between gear 7 and gear rack 10 ensures the smoothness and accuracy of the adjustment process. At the same time, the limiting blocks 11 on both sides of gear rack 10 slide along the sliding groove 9 of sliding block 8, which can effectively limit the movement trajectory of gear rack 10 and avoid problems such as deviation and jamming during adjustment, thus improving the stability and reliability of the structure. The overall structure is compact and takes into account both practicality and space utilization.

[0030] A connecting block 2 is fixedly installed at the upper end of the gear rack 10. An angle adjustment assembly is provided inside the connecting block 2. The angle adjustment assembly includes an electric push rod 12, a slide rod 13, a second motor 14, a second gear 15, a placement groove 16, a second rotating shaft 17, and a slider 18. Two slide rods 13 are fixedly installed at both ends on one side of the connecting block 2. An electric push rod 12 is fixedly installed in the middle of one side of the connecting block 2. A slider 18 is fixedly installed on the extension section of the electric push rod 12. The slider 18 is slidably installed on the two slide rods 13. A second motor 14 is fixedly installed on the slider 18. The output end of the second motor 14 is connected to the second rotating shaft 17 through a coupling. The front end of the second rotating shaft 17 passes through the connecting block 2 and a second gear 15 is fixedly installed. A placement groove 16 is opened on one side of the connecting block 2. The placement groove 16 is adapted to the second gear 15. A headrest body 4 is slidably installed on the connecting block 2. A cushion 3 is provided at the front end of the headrest body 4. A gear groove 19 is opened on one side of the headrest body 4. The gear groove 19 is connected to the gear. When in use, the angle adjustment assembly consisting of an electric push rod 12, a slide rod 13, a slider 18, a second motor 14, and a second gear 15 is integrated into the connecting block 2. The electric push rod 12 pushes the slider 18 to slide smoothly along the slide rod 13 to adjust the position of the second motor 14 and the second gear 15, so that the second gear 15 meshes into the gear groove 19. Then, the second motor 14 drives the second gear 15 to mesh with the gear groove 19 in the headrest body 4, realizing flexible adjustment of the angle of the headrest body 4 to meet the personalized needs of drivers and passengers for different head support angles. At the same time, the placement groove 16 opened on the connecting block 2 is adapted to the second gear 15, which not only provides reasonable installation space for the second gear 15, but also ensures the stability of the transmission process. Furthermore, the design of the headrest body 4 slidingly installed on the connecting block 2 and the front end set with a backrest 3 further improves the reliability of the structural connection and the comfort of use. The transmission is precise, effectively enhancing the practicality and adaptability of the headrest.

[0031] Working principle: When an adjustable car seat headrest is put into use, motor 5 starts and drives gear 7 to rotate via shaft 6. Since gear 7 meshes with gear rack 10 which is slidably installed in sliding block 8, and the limiting blocks 11 on both sides of gear rack 10 slide along the slide groove 9 of sliding block 8, the rotation of gear 7 can drive gear rack 10 to move up and down. In turn, the headrest body 4 is driven by the connecting block 2 at the upper end of gear rack 10 to achieve height adjustment. When adjusting the angle, after the headrest body 4 is slidably installed in connecting block 2, the electric push rod 12 pushes the slider 18 to slide along the slide rod 13 to adjust the position of motor 14, so that gear 15 meshes into gear groove 19. Then, motor 14 starts and drives shaft 17 and gear 15 to rotate. Since gear 15 meshes with gear groove 19 in headrest body 4, the rotation of gear 15 can drive headrest body 4 to rotate relative to connecting block 2, thereby completing the adjustment of headrest angle.

[0032] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A height-adjustable car seat headrest, comprising a seat back (1), characterized in that, A motor (5) is fixedly installed on one side inside the seat back (1). The output end of the motor (5) is connected to a rotating shaft (6) via a coupling. A gear (7) is fixedly installed at the front end of the rotating shaft (6). A lifting assembly is provided inside the seat back (1). The lifting assembly includes a sliding block (8), a sliding groove (9), a gear rack (10), and a limiting block (11). The sliding block (8) is fixedly installed at the bottom of the seat back (1). The sliding block (8) has sliding grooves (9) on both sides. The gear rack (10) is slidably installed in the sliding block (8). The limiting blocks (11) are fixedly installed on both sides of the gear rack (10). The limiting blocks (11) are slidably installed in the sliding grooves (9). The gear rack (10) meshes with gear one (7).

2. The height-adjustable car seat headrest according to claim 1, characterized in that, A connecting block (2) is fixedly installed at the upper end of the gear rack (10). An angle adjustment component is provided inside the connecting block (2). The angle adjustment component includes an electric push rod (12), a slide rod (13), a second motor (14), a second gear (15), a placement groove (16), a second rotating shaft (17), and a slider (18).

3. The height-adjustable car seat headrest according to claim 2, characterized in that, Two slide rods (13) are fixedly installed at both ends on one side of the connecting block (2), and an electric push rod (12) is fixedly installed in the middle of one side of the connecting block (2).

4. The height-adjustable car seat headrest according to claim 3, characterized in that, The extension of the electric push rod (12) is fixedly mounted with a slider (18), which is slidably mounted on two slide rods (13).

5. The height-adjustable car seat headrest according to claim 4, characterized in that, A second motor (14) is fixedly installed on the slider (18). The output end of the second motor (14) is connected to a second rotating shaft (17) through a coupling. A second gear (15) is fixedly installed at the front end of the second rotating shaft (17) through the connecting block (2).

6. The height-adjustable car seat headrest according to claim 5, characterized in that, The connecting block (2) has a placement groove (16) on one side, which is adapted to the gear (15).

7. The height-adjustable car seat headrest according to claim 6, characterized in that, The headrest body (4) is slidably mounted on the connecting block (2), and a cushion (3) is provided at the front end of the headrest body (4).

8. The height-adjustable car seat headrest according to claim 7, characterized in that, A gear groove (19) is provided on one side of the headrest body (4), and the gear groove (19) meshes with the second gear (15).

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