Automobile headrest adjusting device

Abstract

The utility model relates to the technical field of headrest adjustment, and discloses an automobile headrest adjusting device which is characterized in that a moving plate is horizontally and movably arranged between two groups of sliding grooves, the two ends of the moving plate are located in the corresponding sliding grooves and slide up and down, and a gearbox is vertically arranged in the center of the bottom in a rectangular groove; a threaded rod is vertically and movably arranged in the center of the surface of the top of the moving plate, the threaded rod is in threaded connection with the interior of the moving plate through threads of the threaded rod, the bottom of the threaded rod vertically extends into the gearbox, and a driven gear is horizontally and fixedly connected to the bottom of the threaded rod. According to the utility model, when people sit on the seat and feel that the height of the headrest is not suitable and uncomfortable, a motor rotates forwards and backwards, and when the motor rotates forwards, a driving gear drives a driven gear in a gear box to rotate to enable a threaded rod to rotate, so that a movable plate ascends, and the height of the headrest mounted at the top of a headrest rod is increased, otherwise, the height of the headrest mounted at the top of the headrest rod is increased; when the movable plate descends, the height of the headrest is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of headrest adjustment, in particular to an automobile headrest adjustment device. Background Art

[0002] The car seat headrest is designed with safety in mind, so it is not only a comfort feature but also a safety feature. In addition to improving riding comfort, the greater role of the headrest is to protect our head and neck. Only when the headrest is of appropriate height can better protection be obtained. Otherwise, it may have a counterproductive effect and aggravate the injury.

[0003] After searching application number CN201820208170.2, a car headrest adjustment device is found, which relates to the technical field of headrest adjustment; the utility model discloses a car headrest adjustment device, including a seat and a headrest, a connecting piece is fixedly connected to the seat, a sleeve is fixedly connected to the connecting piece, the headrest is slidably connected to a headrest rod, the headrest and the headrest rod are connected by a first adjustment mechanism and a sliding mechanism, the headrest rod is sleeved in the sleeve, the headrest rod and the sleeve are slidably connected, and a second adjustment mechanism is connected between the headrest rod and the sleeve; the first adjustment mechanism includes an adjusting piece and an adjusting track, the adjusting piece is fixedly connected to the end of the headrest rod, the adjusting track is arranged at the bottom end of the headrest, the adjusting piece is slidably connected to the adjusting track, a card slot is arranged in the adjusting track, a fixing block matching with the card slot is arranged on the adjusting piece, and a control mechanism matching with the fixing block is arranged on the adjusting piece.

[0004] The comparative document discloses a car headrest adjustment device, which, when in use, requires manually stretching a fixing block outward, pulling the headrest rod upward, and then engaging the fixing block with the slot. Therefore, the operation is cumbersome and very inconvenient. The connection between the fixing block and the slot is not firm enough and may be separated due to the bumps of the car.

[0005] For this reason, we propose a vehicle headrest adjusting device. Utility Model Content

[0006] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides an automobile headrest adjusting device.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a car headrest adjustment device, including a seat, a rectangular groove is opened inside the seat, a horizontal plate is horizontally fixedly connected to the top of the inner two side surfaces of the rectangular groove, and tube sleeves are arranged at both ends of the top surface of the horizontal plate for vertical downward movement, a rectangular plate is vertically fixedly installed at the bottom of the center position of the inner two side surfaces of the rectangular groove, a sliding groove is vertically opened on the side surface where two groups of rectangular plates are close to each other, a movable plate is horizontally movably arranged between the two groups of sliding grooves, a headrest rod is vertically movably arranged inside each group of tube sleeves, and the bottom of each group of headrest rods is fixedly connected to the top surface of the movable plate.

[0008] Preferably, both ends of each group of the sleeves are open cylindrical, a support is horizontally fixedly connected to the center of the top surface of the horizontal plate, and fixed plates are horizontally fixedly connected to the two side surfaces of the support, and one end of each group of fixed plates is horizontally fixedly connected to one side surface of the corresponding sleeve.

[0009] Preferably, both ends of the movable plate slide up and down inside the corresponding slide grooves, a gear box is vertically arranged at the inner bottom center of the rectangular groove, and a threaded rod is vertically and movably arranged at the top surface center of the movable plate.

[0010] Preferably, the threaded rod is threadedly connected to the inside of the movable plate through its own thread, the bottom of the threaded rod vertically extends into the inside of the gear box, the bottom of the threaded rod is horizontally fixedly connected to a slave gear, and a limiting groove is vertically opened on one side surface of the gear box.

[0011] Preferably, a motor is vertically fixedly installed on the inner bottom surface of the rectangular groove near one end of the gear box, a main gear is horizontally arranged on the top of the motor, and one end of the outer surface of the main gear is horizontally located inside the gear box through a limiting groove and movably engaged with the surface of the slave gear.

[0012] Preferably, the top of each group of headrest rods is located above the top surface of the seat, a headrest is horizontally movably arranged above the top surface of the seat, and the top of each group of headrest rods is fixedly connected to the bottom surface of the headrest.

[0013] Beneficial Effects

[0014] The utility model provides a vehicle headrest adjustment device, which has the following beneficial effects:

[0015] The automobile headrest adjustment device is used when people feel that the headrest height is not suitable and causes discomfort when sitting on the seat. Through the forward and reverse rotation of the motor, when the motor rotates forward, the main gear drives the gear inside the gear box to rotate to rotate the threaded rod, and the movable plate will rise, thereby making the headrest installed on the top of the headrest rod higher. Conversely, the movable plate drops and the headrest height becomes lower, thereby realizing the adjustment of the headrest height to adapt to different people and improve the comfort of the seat. The two ends of the movable plate are located in the corresponding slide groove and slide up and down, which has a stabilizing effect on the movable plate when moving. The horizontal plate and the sleeve make the headrest rod more stable when moving up and down. The device has a simple structure, low cost and is easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the fixing member of the utility model;

[0020] Figure 3 It is a schematic diagram of the interior of the rectangular groove of the utility model.

[0021] Legend:

[0022] 1. Seat; 2. Rectangular groove; 3. Horizontal plate; 4. Cylinder sleeve; 5. Support; 6. Fixed plate; 7. Rectangular plate; 8. Slide groove; 9. Moving plate; 10. Threaded rod; 11. Gear box; 12. Motor; 13. Main gear; 14. Headrest rod; 15. Headrest. DETAILED DESCRIPTION

[0023] 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.

[0024] In the description of the utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] Embodiment: A vehicle headrest adjustment device, such as Figure 1-Figure 3 As shown, it includes a seat 1, a rectangular groove 2 is vertically opened inside the seat 1, a horizontal plate 3 is horizontally fixedly connected to the top of the inner two side surfaces of the rectangular groove 2, and tube sleeves 4 are vertically movably arranged at both ends of the top surface of the horizontal plate 3, the bottom of each group of tube sleeves 4 is located below the bottom surface of the horizontal plate 3, and the two ends of each group of tube sleeves 4 are open cylindrical, a support 5 is horizontally fixedly connected to the center of the top surface of the horizontal plate 3, and a fixing plate 6 is horizontally fixedly connected to the two side surfaces of the support 5, and one end of each group of fixing plates 6 is horizontally fixedly connected to the side surface of the corresponding tube sleeve 4, a rectangular plate 7 is vertically fixedly installed at the bottom of the center of the inner two side surfaces of the rectangular groove 2, and a slide groove 8 is vertically opened on the side surface where the two groups of rectangular plates 7 are close to each other.

[0026] A movable plate 9 is horizontally movably arranged between the two groups of slide grooves 8. The two ends of the movable plate 9 are located in the corresponding slide grooves 8 and slide up and down. A gear box 11 is vertically arranged at the center of the inner bottom of the rectangular groove 2. A threaded rod 10 is vertically movably arranged at the center of the top surface of the movable plate 9. The threaded rod 10 is threadedly connected with the inside of the movable plate 9 through its own thread. The bottom of the threaded rod 10 vertically extends to the inside of the gear box 11. The bottom of the threaded rod 10 is horizontally fixedly connected with a slave gear. A limiting groove is vertically provided on one side surface of the gear box 11. The inner bottom surface of the rectangular groove 2 A motor 12 is vertically fixedly installed near one end of the gear box 11, and a main gear 13 is horizontally arranged on the top of the motor 12. One end of the outer surface of the main gear 13 is horizontally located inside the gear box 11 through a limiting groove and movably engaged with the surface of the slave gear. A headrest rod 14 is vertically movably arranged inside each group of tube sleeves 4, and the bottom of each group of headrest rods 14 is fixedly connected to the top surface of the movable plate 9. The top of each group of headrest rods 14 is located above the top surface of the seat 1, and a headrest 15 is horizontally movably arranged above the top surface of the seat 1, and the top of each group of headrest rods 14 is fixedly connected to the bottom surface of the headrest 15.

[0027] Working principle: When people sit on the seat 1 and feel that the height of the headrest 15 is not suitable, causing discomfort, the motor 12 is rotated forward and reversed. When the motor 12 rotates forward, the main gear 13 drives the gear inside the gear box 11 to rotate the threaded rod 10, and the movable plate 9 will rise, thereby making the headrest 15 installed on the top of the headrest rod 14 higher. Conversely, the movable plate 9 drops and the headrest 15 becomes lower, thereby realizing the adjustment of the height of the headrest 15 to adapt to different people and improve the comfort of the seat 1. The two ends of the movable plate 9 are located in the corresponding slide groove 8 and slide up and down, which has a stabilizing effect on the movable plate 9 when it moves. The horizontal plate 3 and the sleeve 4 make the headrest rod 14 more stable when moving up and down. The device has a simple structure, low cost, and is easy to promote.

[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A vehicle headrest adjustment device, comprising a seat (1), a rectangular groove (2) is provided inside the seat (1), a horizontal plate (3) is horizontally fixedly connected to the top of the inner two side surfaces of the rectangular groove (2), and sleeves (4) are vertically and movably provided at both ends of the top surface of the horizontal plate (3), characterized in that: A rectangular plate (7) is vertically fixedly installed at the bottom of the center position of the inner two side surfaces of the rectangular groove (2), a sliding groove (8) is vertically opened on the surface of one side where the two groups of rectangular plates (7) are close to each other, and a movable plate (9) is horizontally movably arranged between the two groups of sliding grooves (8), and a headrest rod (14) is vertically movably arranged inside each group of tube sleeves (4), and the bottom of each group of headrest rods (14) is fixedly connected to the top surface of the movable plate (9).

2. The automobile headrest adjustment device according to claim 1, characterized in that: Both ends of each group of the sleeves (4) are open cylindrical shapes, a support (5) is horizontally fixedly connected to the center of the top surface of the horizontal plate (3), and fixed plates (6) are horizontally fixedly connected to the two side surfaces of the support (5), and one end of each group of fixed plates (6) is horizontally fixedly connected to a side surface of the corresponding sleeve (4).

3. The automobile headrest adjustment device according to claim 1, characterized in that: The two ends of the movable plate (9) are located inside the corresponding slide groove (8) and slide up and down. A gear box (11) is vertically arranged at the center of the inner bottom of the rectangular groove (2). A threaded rod (10) is vertically and movably arranged at the center of the top surface of the movable plate (9).

4. The automobile headrest adjustment device according to claim 3, characterized in that: The threaded rod (10) is threadedly connected to the inside of the movable plate (9) through its own thread, the bottom of the threaded rod (10) vertically extends into the inside of the gear box (11), the bottom of the threaded rod (10) is horizontally fixedly connected to a slave gear, and a limiting groove is vertically provided on one side surface of the gear box (11).

5. The automobile headrest adjustment device according to claim 4, characterized in that: A motor (12) is vertically fixedly mounted on the inner bottom surface of the rectangular groove (2) near one end of the gear box (11), a main gear (13) is horizontally arranged on the top of the motor (12), and one end of the outer surface of the main gear (13) is horizontally located inside the gear box (11) through a limiting groove and movably engaged with the surface of the slave gear.

6. The automobile headrest adjustment device according to claim 4, characterized in that: The top of each group of headrest rods (14) is located above the top surface of the seat (1), a headrest (15) is horizontally movably arranged above the top surface of the seat (1), and the top of each group of headrest rods (14) is fixedly connected to the bottom surface of the headrest (15).

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