CN220298359U

CN220298359U - Automobile seat headrest

Info

Publication number: CN220298359U
Application number: CN202321422651.0U
Authority: CN
Inventors: 尚建丽; 聂泽众; 方晨旭; 秦跃飞; 李黄辉; 戚鑫
Original assignee: Zhengzhou Taixin Automobile Interior Parts Co ltd
Current assignee: Zhengzhou Taixin Automobile Interior Parts Co ltd
Priority date: 2023-06-06
Filing date: 2023-06-06
Publication date: 2024-01-05
Anticipated expiration: 2033-06-06

Abstract

The utility model discloses an automobile seat headrest, which comprises a seat backrest, a headrest body and a rotating mechanism, wherein the headrest body is connected with the seat backrest in a height-adjustable way through the rotating mechanism; the rotating mechanism comprises a fixed sleeve, the fixed sleeve is connected with a circumferential rotating mechanism, the circumferential rotating mechanism is adjustable in axial height along the fixed sleeve, the top of the circumferential rotating mechanism is connected with a rotating disc, the circumferential surface of the rotating disc locally extends out of a headrest body, the rotating disc is arranged on the headrest body along circumferential rotation of the rotating disc, a fixed bearing is connected on the headrest body, and the fixed bearing is rotationally connected with the circumferential rotating mechanism. Utilize rotary mechanism's circumference rotation to drive headrest axial altitude mixture control, the high number of turns that is dependent on the rolling disc rotation of headrest regulation, the kind of headrest pole ascending adjustable height is more, and the suitability is higher, has solved the interval that highly is N draw-in groove structures after the headrest is extracted among the prior art, and the high kind after the headrest is extracted is limited, and applicable type is lower technical problem.

Description

Automobile seat headrest

Technical Field

The utility model relates to the technical field of automobile seat headrests, in particular to an automobile seat headrest.

Background

Automotive seats are one type of automotive parts, and in order for a passenger to relax their neck while sitting, a headrest is typically provided on top of the seat back for the passenger to lean against the head.

For example, chinese patent publication No. CN114148232a discloses an automobile headrest, an automobile seat, and an automobile, the automobile headrest including a headrest front end assembly and a headrest rear end assembly, the headrest front end assembly and the headrest rear end assembly being connected by fixing screws. The headrest front end assembly comprises a front end insert assembly, wherein the front end insert assembly comprises two damping hinges, a left headrest plastic framework, a middle headrest plastic framework and a right headrest plastic framework. The left headrest plastic framework and the right headrest plastic framework are turned over along the hinge shafts of the two damping hinges respectively by adjusting the angles of the left headrest plastic framework and the right headrest plastic framework, so that the angle of the automobile headrest is adjusted.

However, the headrest rod of the automobile headrest comprises a clamping groove structure, and the automobile headrest is connected with the seat backrest so as to realize that the automobile headrest slides along the headrest rod. The clamping groove structure on the headrest rod can be a plurality of clamping groove structures which are arranged at equal intervals, and a user can adjust the ascending height of the headrest rod at equal intervals. The headrest which is pulled upwards is inconvenient to adjust in the process of actually adjusting the height of the headrest. The inconvenient regulation special body shows that: in the actual use, the height of pulling out is probably the interval between two draw-in grooves, also probably is the interval of three draw-in grooves, and the height of pulling out is uncontrollable to the height after the headrest pull out is the interval of N draw-in groove structure, and the high kind after the headrest pull out is limited, leads to its application type to be lower.

Disclosure of Invention

Aiming at the defects in the background technology, the utility model provides an automobile seat headrest, which solves the technical problems that the height of the headrest after the headrest is pulled out is the distance between N clamping groove structures, the height type of the headrest after the headrest is pulled out is limited, and the applicability is lower in the prior art.

The technical scheme of the utility model is realized as follows: an automobile seat headrest comprises a seat backrest, a headrest body and a rotating mechanism, wherein the headrest body is connected with the seat backrest in a height-adjustable manner through the rotating mechanism; the rotating mechanism comprises a fixed sleeve, the fixed sleeve is connected with a circumferential rotating mechanism, the circumferential rotating mechanism is adjustable in axial height along the fixed sleeve, the top of the circumferential rotating mechanism is connected with a rotating disc, the circumferential surface of the rotating disc locally extends out of a headrest body, the rotating disc is arranged on the headrest body along circumferential rotation of the rotating disc, a fixed bearing is connected on the headrest body, and the fixed bearing is rotationally connected with the circumferential rotating mechanism.

Preferably, the fixing sleeve is fixedly connected with the seat backrest, and the circumferential rotating mechanism is rotatably connected with the headrest body.

Preferably, the circumferential rotating mechanism comprises a limit rod and a connecting rod, the limit rod is connected with the fixed sleeve in a height-adjustable manner, the top of the limit rod is connected with the connecting rod, the rotating disc is positioned at the top of the connecting rod, and the outer surface of the connecting rod is sleeved with the fixed bearing.

Preferably, the fixing sleeve is provided with a threaded hole, the limiting rod is provided with external threads, and the fixing sleeve is in threaded connection with the limiting rod.

Preferably, the threaded hole is provided with a stop block, the connecting rod is a rod with a smooth outer surface, and the stop block is sleeved on the connecting rod.

Preferably, two sets of rotating mechanisms are arranged between the headrest body and the backrest, and the two sets of rotating mechanisms are a first rotating mechanism and a second rotating mechanism respectively, and the first rotating mechanism is connected with the second rotating mechanism through a gear transmission mechanism.

Preferably, the gear transmission mechanism comprises a driving gear and a driven gear, the driving gear is fixedly connected with the connecting rod of the first rotating mechanism, the driven gear is fixedly connected with the connecting rod of the second rotating mechanism, the transmission gear is rotationally connected with the headrest body, and the driving gear is connected with the driven gear through the transmission gear.

Preferably, a fixed shaft is arranged between the first rotating mechanism and the second rotating mechanism, the fixed shaft is fixedly connected with the headrest body, and the transmission gear is sleeved on the fixed shaft.

Preferably, the gear transmission mechanism comprises a driving gear and a driven gear, the driving gear is fixedly connected with the connecting rod of the first rotating mechanism, the driven gear is fixedly connected with the connecting rod of the second rotating mechanism, and the driving gear is meshed with the driven gear.

Preferably, the circumference of the rotating disc is provided with a non-slip protrusion.

The headrest is connected with the height of the backrest in an adjustable way through the rotating mechanism, the circumferential rotation of the rotating mechanism is utilized to drive the axial height adjustment of the headrest, the headrest does not need to be adjusted along the axial pulling of the headrest, the height of the headrest is adjusted according to the rotating circle number of the rotating disc, the ascending height of the headrest rod which can be adjusted by the headrest adjusting device is the ascending height of the limit rod in a spiral way, compared with the above-mentioned publication, the headrest adjusting device has more ascending height types of the headrest rod, so that the headrest is higher in applicability and wider in application range, and the technical problems that the headrest is limited in the type of the height after pulling of the headrest and lower in applicability in the prior art due to the fact that the height of the headrest is the interval of N clamping groove structures are solved. In addition, when the height of the headrest is adjusted, the head can directly lean on the headrest, and the height of the headrest is adjusted to be optimal by utilizing the positive and negative rotation of the rotating disc.

Drawings

In order to more clearly illustrate the embodiments of the present utility model, the drawings that are required for the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

Fig. 1 is a schematic view of a rotating mechanism according to the present utility model.

Fig. 2 is a schematic view of a circumferential rotation mechanism according to the present utility model.

FIG. 3 is a schematic diagram of the connection between the rotating mechanism and the driving gear.

Fig. 4 is a schematic diagram of the connection between the circumferential rotation mechanism and the driving gear.

Fig. 5 is a cross-sectional view of example 1.

Fig. 6 is a cross-sectional view of example 2.

In the figure, a fixed sleeve 1, a rotating disc 2, a threaded hole 3, a stop block 4, a limit rod 5, a connecting rod 6, a seat back 7, a headrest body 8, a fixed shaft 9, a driving gear 10, a driven gear 11, a transmission gear 12 and a fixed bearing 13.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1, 2, 3, 4 and 5, embodiment 1, an automobile seat headrest includes a seat back 7, a headrest body 8 and a rotation mechanism by which the headrest body 8 is height-adjustably connected with the seat back 7; the rotating mechanism comprises a fixed sleeve 1, the fixed sleeve 1 is connected with a circumferential rotating mechanism, the circumferential rotating mechanism is adjustable along the axial height of the fixed sleeve 1, the top of the circumferential rotating mechanism is connected with a rotating disc 2, the circumferential surface of the rotating disc 2 locally extends out of a headrest body 8, the rotating disc 2 is arranged on the headrest body 8 along the circumferential rotation of the rotating disc 2, a fixed bearing 13 is connected on the headrest body 8, and the fixed bearing 13 is rotationally connected with the circumferential rotating mechanism. The fixed sleeve 1 is fixedly connected with the seat backrest 7, and the circumferential rotating mechanism is rotatably connected with the headrest body 8. The circumferential rotation of the rotating mechanism is utilized to drive the axial height adjustment of the headrest, the headrest does not need to be axially pulled out along the headrest to adjust the height of the headrest, the height adjusted by the headrest depends on the rotation number of turns of the rotating disc, the rising height of the headrest rod which can be adjusted by the headrest rod lifting mechanism is the rising height of the rotating mechanism, compared with the above-mentioned publication, the headrest rod lifting adjustable height is more in variety, so that the headrest is higher in applicability and wider in application range, the technical problems that the height after the headrest is pulled out is the spacing of N clamping groove structures in the prior art, the variety of the height after the headrest is pulled out is limited, and the applicability is lower are solved; because fixed cover 1 and gag lever post 5 threaded connection have avoided appearing directly pulling out the condition that gets off whole headrest body 8 from seat back 7, be equipped with dog 4 on screw hole 3 simultaneously, utilize dog 4 to block the break away from of gag lever post 5 and fixed cover 1, further avoided the condition that breaks away from whole headrest body 8 and seat back 7.

As shown in fig. 1 and 2, preferably, the circumferential rotation mechanism comprises a limit rod 5 and a connecting rod 6, the limit rod 5 is connected with the fixed sleeve 1 in a height-adjustable manner, the top of the limit rod 5 is connected with the connecting rod 6, the rotation disc 2 is positioned at the top of the connecting rod 6, and the outer surface of the connecting rod 6 is sleeved with the fixed bearing 13. The fixed sleeve 1 is provided with a threaded hole 3, the limiting rod 5 is provided with external threads, and the fixed sleeve 1 is in threaded connection with the limiting rod 5. Because the fixed sleeve 1 is in threaded connection with the limit rod 5, the condition that the limit rod 5 is directly pulled out from the fixed sleeve 1 is avoided.

As shown in fig. 1 and 2, preferably, the threaded hole 3 is provided with a stop 4, the connecting rod 6 is a rod with a smooth outer surface, and the stop 4 is sleeved on the connecting rod 6. Be equipped with dog 4 on the inner wall of screw hole 3, utilize dog 4 to block the break away from of gag lever post 5 and fixed cover 1, avoided connecting rod 6 and fixed cover 1 to break away from the condition. The circumference of the rotating disc 2 is provided with anti-slip protrusions. The anti-slip protrusions are arranged to facilitate the rotation of the rotating disc 2 controlled by a human hand. The preferred stop 4 is an annular stop which is sleeved on the connecting rod 6.

As shown in fig. 5, preferably, two sets of rotation mechanisms, namely a first rotation mechanism and a second rotation mechanism, are disposed between the headrest body 8 and the seat back 7, and the first rotation mechanism and the second rotation mechanism are connected through a gear transmission mechanism. The gear transmission mechanism transmits the circumferential rotation of the first rotation mechanism to the second rotation mechanism, so that the first rotation mechanism and the second rotation mechanism can raise or lower the height of the headrest body 8 synchronously.

As shown in fig. 3, 4 and 5, preferably, the gear transmission mechanism includes a driving gear 10 and a driven gear 11, the driving gear 10 is fixedly connected with the connecting rod 6 of the first rotation mechanism, the driven gear 11 is fixedly connected with the connecting rod 6 of the second rotation mechanism, the driving gear 12 is rotatably connected with the headrest body 8, and the driving gear 10 is connected with the driven gear 11 through the driving gear 12. The rotation directions of the driving gear 10 and the driven gear 11 are the same, the rotation directions of the driving gear 10 and the transmission gear 12 are opposite, and the driving gear 10 and the driven gear 11 rotate in the same direction by utilizing the transmission of the transmission gear 12, so that the synchronous lifting of the two ends of the headrest body 8 is realized, and the stability of adjusting the height of the headrest body 8 is improved. Wherein the transmission gear 12 is rotatably arranged in a limit groove arranged on the headrest body 8, and the transmission gear 12 can transmit motion while not separating from the driving gear 10 and the driven gear 11 by utilizing the limit groove.

As shown in fig. 3, 4 and 5, preferably, a fixed shaft 9 is disposed between the first rotating mechanism and the second rotating mechanism, the fixed shaft 9 is fixedly connected with the headrest body 8, and the transmission gear 12 is sleeved on the fixed shaft 9. The rotation axis of the transmission gear 12 is limited by the fixed shaft 9, so that the phenomenon that the transmission gear 12 is blocked by the driving gear 10 or the driven gear 11 due to large deflection of the rotation axis of the transmission gear 12 is avoided, and the service life of the transmission gear 12 is further prolonged.

In the embodiment 1, the stop block 4 is sleeved on the connecting rod 6, then the stop rod 5 in threaded connection with the fixing sleeve 1 is welded at the bottom of the connecting rod 6, then the stop rod 5 is rotationally screwed into the fixing sleeve 1, then the stop block 4 is fixed with the top of the fixing sleeve 1, the assembly of the rotating mechanism can be completed, then the fixing sleeves 1 of the two rotating mechanisms are embedded on the seat back 7, the two rotating mechanisms are arranged in parallel, the connecting rods 6 of the rotating mechanism extend into the headrest body 8, then gears are mounted on the connecting rods 6, one connecting rod 6 is provided with the rotating disc 2, the rotating disc 2 extends along the side face of the headrest body 8, the rotating disc 2 is conveniently controlled by hands to rotate, then the headrest body 8 between the two connecting rods 6 is provided with the fixing shaft 9, the fixing shaft 9 is sleeved with the transmission gear 12, and the transmission gear 12 is respectively meshed with the gears on the two connecting rods 6, so that the headrest body 8 in the embodiment can be mounted on the seat back 7. In the practice of the present utility model, the embodiment 1 is preferably selected for implementation.

As shown in fig. 1, 2, 3, 4 and 6, in embodiment 2, unlike embodiment 1, the gear transmission mechanism includes a driving gear 10 and a driven gear 11, the driving gear 10 is fixedly connected with the connecting rod 6 of the first rotation mechanism, the driven gear 11 is fixedly connected with the connecting rod 6 of the second rotation mechanism, and the driving gear 10 is meshed with the driven gear 11. The driving gear 10 is utilized to drive the driven gear 11 to rotate, so that the connecting rod 6 of the first rotating mechanism drives the connecting rod 6 of the second rotating mechanism to rotate, synchronous and same-direction movement of the two connecting rods 6 is realized, and the driving gear 10 drives the driven gear 11 to rotate in opposite directions.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The automobile seat headrest is characterized by comprising a seat backrest (7), a headrest body (8) and a rotating mechanism, wherein the headrest body (8) is connected with the seat backrest (7) in a height-adjustable manner through the rotating mechanism; the rotating mechanism comprises a fixed sleeve (1), the fixed sleeve (1) is connected with a circumferential rotating mechanism, the circumferential rotating mechanism is adjustable in axial height along the fixed sleeve (1), the top of the circumferential rotating mechanism is connected with a rotating disc (2), the circumferential surface of the rotating disc (2) locally extends out of a headrest body (8), the rotating disc (2) is arranged on the headrest body (8) along circumferential rotation of the rotating disc, a fixed bearing (13) is connected to the headrest body (8), and the fixed bearing (13) is rotationally connected with the circumferential rotating mechanism.

2. The headrest for car seats according to claim 1, characterized in that the fixed sleeve (1) is fixedly connected with the seat back (7) and the circumferential rotation mechanism is rotatably connected with the headrest body (8).

3. The automobile seat headrest according to claim 2, characterized in that the circumferential rotation mechanism comprises a limit rod (5) and a connecting rod (6), the limit rod (5) is connected with the fixed sleeve (1) in a height-adjustable mode, the top of the limit rod (5) is connected with the connecting rod (6), the rotating disc (2) is located at the top of the connecting rod (6), and the outer surface of the connecting rod (6) is sleeved with the fixed bearing (13).

4. A car seat headrest according to claim 3, characterized in that the fixing sleeve (1) is provided with a threaded hole (3), the limiting rod (5) is provided with external threads, and the fixing sleeve (1) is in threaded connection with the limiting rod (5).

5. The headrest of the automobile seat according to claim 4, characterized in that the threaded hole (3) is provided with a stop block (4), the connecting rod (6) is a rod with a smooth outer surface, and the stop block (4) is sleeved on the connecting rod (6).

6. The headrest for the automobile seat according to any one of claims 1 to 5, wherein two sets of rotating mechanisms are arranged between the headrest body (8) and the seat backrest (7), and are respectively a first rotating mechanism and a second rotating mechanism, and the first rotating mechanism and the second rotating mechanism are connected through a gear transmission mechanism.

7. The headrest for the automobile seat according to claim 6, characterized in that the gear transmission mechanism comprises a driving gear (10) and a driven gear (11), the driving gear (10) is fixedly connected with the connecting rod (6) of the first rotation mechanism, the driven gear (11) is fixedly connected with the connecting rod (6) of the second rotation mechanism, the transmission gear (12) is rotationally connected with the headrest body (8), and the driving gear (10) is connected with the driven gear (11) through the transmission gear (12).

8. The headrest of the automobile seat according to claim 7, characterized in that a fixed shaft (9) is arranged between the first rotating mechanism and the second rotating mechanism, the fixed shaft (9) is fixedly connected with the headrest body (8), and the transmission gear (12) is sleeved on the fixed shaft (9).

9. The car seat headrest according to claim 6, characterized in that the gear transmission mechanism comprises a driving gear (10) and a driven gear (11), the driving gear (10) is fixedly connected with the connecting rod (6) of the first rotation mechanism, the driven gear (11) is fixedly connected with the connecting rod (6) of the second rotation mechanism, and the driving gear (10) is meshed with the driven gear (11).

10. The headrest for car seats according to any one of claims 1 to 5, 7 to 9, characterized in that the circumferential surface of the rotating disc (2) is provided with anti-slip protrusions.