Automobile seat headrest adjusting structure

Abstract

The utility model provides a kind of automobile seat headrest adjusting structure, it is related to automobile seat headrest technical field, including inner shell, the inner shell outer wall is fixedly installed with headrest pad, the inner shell inner bottom both sides are fixedly installed with sliding sleeve, two the sliding sleeve are slidably provided with sliding column, two the sliding column stem lower end surface is all set with several limit slots. In the utility model, under the condition of motor failure or power failure, manual adjustment can be realized by fixed assembly, press two pressing blocks, make two moving blocks along cross bar slide, drive two insert blocks to separate from the insertion slot on connecting ring, the rotating sleeve and the first gear are fixed at this time, at this time, rotating sleeve can be directly manually rotated, drive screw column to rotate, and then drive lifting plate and sliding column to lift, realize the manual adjustment of headrest height, ensure that manual adjustment can still be carried out when motor failure or power failure, to improve the reliability of use and the convenience of emergency adjustment.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat headrest technology, and more specifically, to an adjustable automotive seat headrest structure. Background Technology

[0002] Car seat headrests, commonly referred to as "headrests," are a crucial safety component of car seats, not merely comfort accessories. For example, publication number "CN220809229U" discloses an automatically adjustable car seat headrest comprising a housing, a headrest pad fixedly connected to one side of the housing, and a geared motor fixedly connected to the center of the bottom surface of the inner wall of the housing. The advantage of this invention is that the transmission structure is located inside the housing, with the bottom of the connecting rod extending through the bottom of the housing.

[0003] However, in the above technical solution, the adjustment structure of the automatically adjustable car seat headrest relies entirely on the geared motor to drive the adjustment screw to achieve lifting and lowering, lacking a structure for manually rotating the adjustment screw. This results in the inability to adjust the headrest height in the event of motor failure or power failure, affecting the reliability of use and the convenience of emergency adjustment. Utility Model Content

[0004] The main objective of this invention is to provide an adjustable headrest structure for automobile seats, which can effectively solve the problem that the adjustable headrest structure of automatically adjustable automobile seats in the background art relies entirely on the adjustment screw driven by the geared motor to achieve lifting and lowering, and lacks a structure for manually rotating the adjustment screw. This results in the inability to adjust the headrest height in the event of motor failure or power failure, affecting the reliability of use and the convenience of emergency adjustment.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An adjustable headrest structure for a car seat includes an inner shell, a headrest pad fixedly installed on the outer wall of the inner shell, sliding sleeves fixedly installed on both sides of the bottom of the inner shell, sliding columns slidably arranged in both sliding sleeves, several limiting grooves opened on the lower end surface of the two sliding columns, a lifting plate fixedly installed on the upper end of the two sliding columns, a rotating sleeve rotatably installed in the middle of the bottom of the inner shell, a threaded column riveted to the upper end of the rotating sleeve, and the lifting plate threaded on one side of the threaded column.

[0007] The rotating sleeve is rotatably mounted with a first gear via a bearing. A connecting ring is integrally formed on the upper surface of the first gear. Two slots are formed on the inner wall surface of the connecting ring. A fixing component for fixing is provided inside the rotating sleeve. A driving component for driving the first gear to rotate is provided on one side of the bottom of the inner shell.

[0008] Preferably, the fixing component includes two crossbars, both of which are fixedly installed on the inner wall of the rotating sleeve. Movable blocks are slidably arranged on both sides of the crossbars, and pressing blocks are fixedly installed on the side of each movable block that is away from each other.

[0009] The inner wall surface of the rotating sleeve is provided with a through groove, and each of the two moving blocks is fixedly installed with a plug on one side away from each other. The two plugs are respectively inserted into the corresponding slots.

[0010] Preferably, a spring is fitted in the middle of both crossbars.

[0011] Preferably, a rotating shaft is rotatably mounted on one side of the lower surface of one of the pressing blocks, and a buckle is fixedly mounted on the lower end of the rotating shaft; a limiting post is fixedly mounted on the lower surface of the other pressing block, and the buckle engages with the limiting post.

[0012] Preferably, the lower end of the rotating sleeve penetrates the headrest cushion and is fixedly mounted with a rotating ring.

[0013] Preferably, the drive assembly includes a motor, which is fixedly installed on one side of the bottom of the inner shell, and a second gear is sleeved on the output shaft of the motor, the second gear meshing with the first gear.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) In the event of motor failure or power failure, manual adjustment can be achieved through the fixed components. Press the two pressing blocks to make the two moving blocks slide along the crossbar, which will cause the two insert blocks to disengage from the slots on the connecting ring. At this time, the rotating sleeve is released from the first gear. The rotating sleeve can be manually rotated to drive the threaded column to rotate, thereby driving the lifting plate and sliding column to rise and fall, thus realizing the manual adjustment of the headrest height. This ensures that manual adjustment can still be performed in the event of motor failure or power failure, thereby improving the reliability of use and the convenience of emergency adjustment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an adjustable headrest for a car seat according to the present invention.

[0017] Figure 2 This is a top view schematic diagram of an adjustable headrest structure for a car seat according to the present invention;

[0018] Figure 3 This utility model relates to an adjustable headrest structure for automobile seats. Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0019] Figure 4 This is a schematic diagram of the other side of the headrest adjustment structure for a car seat according to the present invention;

[0020] Figure 5 This utility model relates to an adjustable headrest structure for automobile seats. Figure 3 Enlarged schematic diagram of the structure at point A;

[0021] Figure 6 This utility model relates to an adjustable headrest structure for automobile seats. Figure 3 Enlarged schematic diagram of the structure at point B;

[0022] Figure 7 This utility model relates to an adjustable headrest structure for automobile seats. Figure 3 Enlarged schematic diagram of the structure at point C;

[0023] Figure 8 This utility model relates to an adjustable headrest structure for automobile seats. Figure 4 An enlarged schematic diagram of the structure at point D.

[0024] In the diagram: 1. Inner shell; 2. Headrest cushion; 3. Sliding sleeve; 4. Sliding column; 5. Lifting plate; 6. Rotating sleeve; 7. Threaded column; 8. Bearing; 9. First gear; 10. Connecting ring; 11. Slot; 12. Fixing assembly; 1201. Crossbar; 1202. Moving block; 1203. Pressing block; 1204. Through slot; 1205. Insert block; 1206. Spring; 13. Drive assembly; 1301. Motor; 1302. Second gear; 14. Rotating shaft; 15. Buckle; 16. Limiting column; 17. Rotating ring. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0026] like Figures 1-8 As shown, a car seat headrest adjustment structure includes an inner shell 1, a headrest pad 2 fixedly installed on the outer wall of the inner shell 1, sliding sleeves 3 fixedly installed on both sides of the bottom of the inner shell 1, sliding columns 4 slidably arranged in both sliding sleeves 3, several limiting grooves are opened on the lower end surface of the two sliding columns 4, a lifting plate 5 is fixedly installed on the upper end of the two sliding columns 4, a rotating sleeve 6 is rotatably installed in the middle of the bottom of the inner shell 1, a threaded column 7 is riveted to the upper end of the rotating sleeve 6, and the lifting plate 5 is threaded on one side of the threaded column 7.

[0027] The rotating sleeve 6 is rotatably mounted with the first gear 9 via the bearing 8. The upper surface of the first gear 9 is integrally provided with a connecting ring 10. Two slots 11 are opened on the inner wall surface of the connecting ring 10. The rotating sleeve 6 is provided with a fixing component 12 for fixing. The bottom side of the inner shell 1 is provided with a driving component 13 for driving the first gear 9 to rotate.

[0028] The fixing component 12 includes two crossbars 1201, both of which are fixedly installed on the inner wall of the rotating sleeve 6. Both sides of the crossbars 1201 are slidably provided with moving blocks 1202, and pressing blocks 1203 are fixedly installed on the side of the two moving blocks 1202 that are far apart from each other.

[0029] A through groove 1204 is provided on the inner wall surface of the rotating sleeve 6. Two moving blocks 1202 are fixedly installed with insert blocks 1205 on opposite sides. The two insert blocks 1205 are respectively inserted into the corresponding slots 11.

[0030] The drive assembly 13 includes a motor 1301, which is fixedly installed on one side of the bottom of the inner shell 1. The output shaft of the motor 1301 is fitted with a second gear 1302, which meshes with the first gear 9.

[0031] In use, insert the two sliding posts 4 into the original headrest holes of the car seat, and initially fix them through several limiting grooves on the surface of the sliding posts 4. Start the motor 1301 in the drive assembly 13 to drive the second gear 1302 to rotate. The second gear 1302 meshes with the first gear 9, thereby driving the first gear 9 to rotate. The first gear 9 drives the rotating sleeve 6 to rotate through the connecting ring 10. The upper end of the rotating sleeve 6 is threaded with the lifting plate 5 through the threaded post 7, thereby driving the lifting plate 5 to move up and down along the sliding sleeve 3 to adjust the height of the headrest cushion 2. In case of motor 1301 failure or power failure, manual adjustment can be achieved through the fixing assembly 12. Press the two pressing blocks 1203 to make the two moving blocks 1202 slide along the crossbar 1201, driving the two insert blocks 1205 to disengage from the slots 11 on the connecting ring 10. At this time, the rotating sleeve 6 is released from the first gear 9. At this time, the rotating sleeve 6 can be manually rotated to drive the threaded post 7 to rotate, thereby driving the lifting plate 5 and the sliding posts 4 to rise and fall, thus achieving manual adjustment of the headrest height. This ensures that manual adjustment can still be performed in the event of a motor 1301 failure or power outage, improving the reliability of use and the convenience of emergency adjustment.

[0032] In another embodiment of this utility model, springs 1206 are sleeved in the middle of the two crossbars 1201.

[0033] Spring 1206 provides a continuous restoring force to movable block 1202. When manual adjustment is required and pressing block 1203 is pressed, spring 1206 is compressed; after releasing pressing block 1203, under the restoring action of spring 1206, movable block 1202 drives insert block 1205 to automatically return to its original position and re-insert into slot 11 of connecting ring 10, thereby automatically restoring the fixed connection state between rotating sleeve 6 and first gear 9.

[0034] In another embodiment of the present invention, a rotating shaft 14 is rotatably mounted on one side of the lower surface of one of the pressing blocks 1203, and a buckle 15 is fixedly mounted on the lower end of the rotating shaft 14. A limiting post 16 is fixedly mounted on the lower surface of the other pressing block 1203, and the buckle 15 engages with the limiting post 16.

[0035] By setting a latch 15 that can rotate around the pivot 14 to engage with a limiting post 16 fixed on another pressing block 1203, the two pressing blocks 1203 are locked together. When manual adjustment is required, the latch 15 can be rotated to engage with the limiting post 16, thereby locking both pressing blocks 1203 simultaneously, causing the insert block 1205 to continuously disengage from the slot 11. At this time, continuous manual adjustment can be performed without constant pressing. After adjustment, the latch 15 can be rotated away from the limiting post 16 to release the lock, and the fixing component 12 will automatically reset under the action of the spring 1206. This design provides a stable locking function, frees the user's hands, and makes the manual adjustment process more convenient and effortless.

[0036] In another embodiment of this utility model, the lower end of the rotating sleeve 6 passes through the headrest pad 2 and is fixedly installed with a rotating ring 17.

[0037] By setting a rotating ring 17, it is convenient for staff to rotate the rotating sleeve 6.

[0038] The working principle of this type of car seat headrest adjustment structure:

[0039] Two sliding posts 4 are inserted into the original headrest holes of the car seat, and are initially fixed by several limiting grooves on the surface of the sliding posts 4. The motor 1301 in the drive assembly 13 is started, which drives the second gear 1302 to rotate. The second gear 1302 meshes with the first gear 9, which in turn drives the first gear 9 to rotate. The first gear 9 drives the rotating sleeve 6 to rotate through the connecting ring 10. The upper end of the rotating sleeve 6 is threaded with the lifting plate 5 through the threaded post 7, thereby driving the lifting plate 5 to move up and down along the sliding sleeve 3, realizing the height adjustment of the headrest cushion 2. In the event of a malfunction of the motor 1301 or a power outage, manual adjustment can be achieved through the fixing assembly 12. Press the two pressing blocks 1203 to make the two moving blocks 1202 slide along the crossbar 1201, causing the two insert blocks 1205 to disengage from the slots 11 on the connecting ring 10. At this time, the rotating sleeve 6 is released from the first gear 9. The rotating sleeve 6 can then be manually rotated to drive the threaded post 7 to rotate, thereby driving the lifting plate 5 and the sliding posts 4 to rise and fall, realizing the manual adjustment of the headrest height. This ensures that manual adjustment can still be performed in the event of a motor 1301 failure or power outage, improving the reliability of use and the convenience of emergency adjustment.

[0040] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A car seat headrest adjustment structure, comprising an inner shell (1), characterized in that: A headrest pad (2) is fixedly installed on the outer wall of the inner shell (1). Sliding sleeves (3) are fixedly installed on both sides of the bottom of the inner shell (1). Sliding columns (4) are slidably arranged in both sliding sleeves (3). Several limiting grooves are opened on the lower surface of the column body of both sliding columns (4). A lifting plate (5) is fixedly installed on the upper end of both sliding columns (4). A rotating sleeve (6) is rotatably installed in the middle of the bottom of the inner shell (1). A threaded column (7) is riveted to the upper end of the rotating sleeve (6). The lifting plate (5) is threaded on one side of the column body of the threaded column (7). The rotating sleeve (6) is rotatably mounted with a first gear (9) via a bearing (8). A connecting ring (10) is integrally provided on the upper surface of the first gear (9). Two slots (11) are opened on the inner wall surface of the connecting ring (10). A fixing component (12) for fixing is provided inside the rotating sleeve (6). A driving component (13) for driving the first gear (9) to rotate is provided on one side of the bottom of the inner shell (1).

2. The car seat headrest adjustment structure according to claim 1, characterized in that: The fixing component (12) includes two crossbars (1201), both of which are fixedly installed on the inner wall of the rotating sleeve (6). Both sides of the crossbars (1201) are slidably provided with moving blocks (1202), and both moving blocks (1202) are fixedly installed with pressing blocks (1203) on the side away from each other. The inner wall surface of the rotating sleeve (6) is provided with a through groove (1204), and the two moving blocks (1202) are fixedly installed with plugs (1205) on the side away from each other. The two plugs (1205) are respectively inserted into the corresponding slots (11).

3. The car seat headrest adjustment structure according to claim 2, characterized in that: Springs (1206) are fitted in the middle of the two crossbars (1201).

4. The car seat headrest adjustment structure according to claim 3, characterized in that: One of the pressing blocks (1203) has a rotating shaft (14) rotatably mounted on one side of its lower surface, and a buckle (15) is fixedly mounted on the lower end of the rotating shaft (14). The other pressing block (1203) has a limiting post (16) fixedly mounted on its lower surface, and the buckle (15) engages with the limiting post (16).

5. The car seat headrest adjustment structure according to claim 4, characterized in that: The lower end of the rotating sleeve (6) passes through the headrest cushion (2) and is fixedly installed with a rotating ring (17).

6. The car seat headrest adjustment structure according to claim 1, characterized in that: The drive assembly (13) includes a motor (1301), which is fixedly installed on one side of the bottom of the inner shell (1). The output shaft of the motor (1301) is fitted with a second gear (1302), which meshes with the first gear (9).

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