Headrest angle adjusting structure and vehicle

Abstract

The utility model provides a headrest angle adjusting structure and a vehicle, and belongs to the technical field of headrest angle adjusting.According to the headrest angle adjusting structure, a first gear is driven by a rotary driving part to rotate, and a connecting frame and a headrest seat vertically swing relative to a headrest frame through the meshing effect of the first gear and a second gear; the angle of the headrest seat can be conveniently adjusted according to the requirements of different passengers, the comfort degree of using the headrest when a driver takes a car or has a rest is improved, the operation process is simplified, the adjusting efficiency is improved, and the automation degree of the car is improved; the number of the connecting bases, the number of the first gears and the number of the second gears are two, so that the first gears and the second gears form a stable meshing effect, and it is guaranteed that driving action is stable and effective. By arranging the controller, automatic control over the rotary driving part is achieved, the complexity of manual control over the rotary driving part is avoided, the intelligent degree of the vehicle is improved, and use by passengers is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model belongs to headrest angle adjustment technical field, more specifically, it relates to a headrest angle adjustment structure and vehicle. BACKGROUND

[0002] In recent years, with the development of vehicle technology, vehicles gradually realize electricization and intelligentization. For example, the automobile seat is upgraded from the original manual adjustment to electric adjustment, and memory adjustment, seat heating and seat ventilation functions are added, which greatly improves the science and technology and driving comfort of the automobile.

[0003] At present, the seat headrest of most vehicle models can only be adjusted in height by manual operation, and it is difficult to adjust the pitch angle, so it is difficult to meet the use requirements of people under different conditions such as driving or resting, which affects the convenience and comfort of driving. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a headrest angle adjustment structure and vehicle, which can conveniently adjust the pitch angle of the headrest and meet the comfort of the driver.

[0005] To achieve the above purpose, the utility model adopts the technical scheme of providing a headrest angle adjustment structure, which comprises a headrest frame, a headrest seat and a driving assembly. The headrest seat is rotatably connected to the front side of the headrest frame through a connecting seat. The driving assembly comprises a first gear, a second gear and a rotary driving piece. The rotary driving piece and the first gear are both rotatably connected to the connecting seat, and the first gear is connected to the output end of the rotary driving piece. The second gear is fixedly connected to the headrest frame and engaged with the first gear. The first gear can drive the headrest seat to swing around the main shaft of the second gear under the action of the rotary driving piece.

[0006] In a possible implementation, the headrest frame has a horizontally extending upper cross beam, the connecting seat is fixedly connected to the rear side of the headrest seat, and the connecting seat has a rotating sleeve that is sleeved on the upper cross beam.

[0007] In some embodiments, two connecting seats are provided, both of which are connected to the headrest seat and are spaced apart along the direction of the upper cross beam.

[0008] In some embodiments, the output end of the rotary driving piece is connected to a transmission shaft, the first gear is fixedly sleeved on the transmission shaft, the rotary driving piece is connected to one of the connecting seats, and the other connecting seat is provided with a mounting shaft seat for mounting the outer end of the transmission shaft.

[0009] In some embodiments, two first gears are spaced apart in the axial direction of the transmission shaft, and two second gears are also provided and engaged with the first gears one by one.

[0010] In a possible implementation, the outer periphery of the second gear is provided with an outwardly protruding sector limiting part, and the sector limiting part has a limiting surface for limiting the swing amplitude of the first gear.

[0011] In a possible implementation, the headrest seat extends in a horizontal direction, and a middle portion of the headrest seat is arc-shaped and protrudes away from one side of the connecting seat.

[0012] In some embodiments, the thickness of the headrest seat gradually decreases from the middle portion to the upper edge, and the thickness of the headrest seat gradually decreases from the middle portion to the lower edge, and the upper edge and the lower edge of the headrest seat are both provided with arc-shaped transition portions.

[0013] In a possible implementation, the headrest angle adjusting structure further comprises a controller, which is electrically connected with the rotary driving member and used for sending a control instruction to the rotary driving member.

[0014] Compared with the prior art, the headrest angle adjusting structure provided by the embodiments of the present application drives the first gear to rotate by using the rotary driving member, and the connecting frame and the headrest seat are vertically swung relative to the headrest frame through the meshing effect of the first gear and the second gear, so that the angle adjustment of the headrest seat is facilitated according to the needs of different passengers, the comfort of using the headrest by the driver or passenger is improved when the driver or passenger is driving or resting, the operation process is simplified, the adjustment efficiency is improved, and the automation level of the vehicle is improved.

[0015] The utility model also provides a vehicle, above-mentioned vehicle includes headrest angle adjusting structure. Above-mentioned vehicle utilizes drive assembly to drive connecting frame and headrest seat relative headrest frame vertically swing, facilitate according to the needs of different passengers to carry out the angle adjustment of headrest seat, improved the comfort of using the headrest by the driver or passenger when the driver or passenger is driving or resting, simplified the operation process, improved the adjustment efficiency, improved the automation level of vehicle. ACCURATE DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0017] Figure 1 The structure diagram of the headrest angle adjusting structure provided by the embodiments of the utility model is shown in the drawings.

[0018] Figure 2 The structure diagram of the headrest seat, the connecting frame and the drive assembly in the embodiments of the utility model is shown in the drawings (the second gear is omitted). Figure 1

[0019] ​Figure 3 For the embodiment of the utility model Figure 1 The structure diagram of the headrest frame and the second gear;

[0020] Figure 4 The left view structure diagram of the headrest angle adjusting structure provided by the embodiment of the utility model.

[0021] In the drawings, various reference signs indicate:

[0022] 1, headrest frame; 11, upper cross beam; 2, headrest seat; 21, arc-shaped transition part; 3, driving assembly; 31, first gear; 32, second gear; 33, rotary driving member; 34, fan-shaped limiting part; 35, limiting surface; 36, reinforcing ring; 4, connecting seat; 41, rotating sleeve; 5, transmission shaft; 51, mounting shaft seat. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model more clear and obvious, the utility model is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0024] In the claims, specification and above drawings of the utility model, the terms "front", "rear" are the same as the front-rear direction of the vehicle body, "left", "right" are the same as the left-right direction of the vehicle body, "up", "down" are the same as the up-down direction of the vehicle body; the term "inner" refers to the direction towards the central axis of the vehicle body, and the term "outer" refers to the direction away from the central axis of the vehicle body, wherein the central axis of the vehicle body is parallel to the front-rear direction of the vehicle body. The rest of the orientation words, unless otherwise explicitly limited, such as the terms "center", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "clockwise", "counterclockwise", "high", "low" indicate the orientation or position relationship based on the orientation and position relationship shown in the drawings, and are only used to facilitate the description of the utility model and simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as limiting the specific protection scope of the utility model.

[0025] Please see Figures 1 to 4The utility model provides a headrest angle adjusting structure and vehicle, and the headrest angle adjusting structure comprises a headrest frame 1, a headrest seat 2 and a driving assembly 3, the headrest seat 2 is rotationally connected to the front side of the headrest frame 1 through a connecting seat 4, the driving assembly 3 comprises a first gear 31, a second gear 32 and a rotary driving part 33, the rotary driving part 33 and the first gear 31 are rotationally connected to the connecting seat 4, and the first gear 31 is connected with the output end of the rotary driving part 33, the second gear 32 is fixedly connected to the headrest frame 1 and is engaged with the first gear 31, and the first gear 31 can drive the headrest seat 2 to oscillate around the main shaft of the second gear 32 under the action of the rotary driving part 33.

[0026] Compared with the prior art, the headrest angle adjusting structure provided by the embodiment drives the first gear 31 to rotate by the rotary driving part 33, makes the connecting frame and the headrest seat 2 oscillate vertically relative to the headrest frame 1 through the meshing action of the first gear 31 and the second gear 32, the angle of the headrest seat 2 can be adjusted according to the needs of different passengers, the comfort of the driver or passenger when using the headrest is improved, the operation process is simplified, the adjustment efficiency is improved, and the automation degree of the vehicle is improved.

[0027] In some possible implementation manners, the above-mentioned features are adopted by the embodiment as shown in Figures 1 to 3 . Referring to Figures 1 to 3 , the headrest frame 1 has a horizontally extending upper cross beam 11, the connecting seat 4 is fixedly connected to the rear side of the headrest seat 2, and the connecting seat 4 has a rotating sleeve 41 sleeved on the upper cross beam 11.

[0028] In the embodiment, the upper cross beam 11 is arranged on the headrest frame 1, and the headrest seat 2 is rotationally connected to the front side of the upper cross beam 11 through the connecting seat 4. The connecting seat 4 is fixedly connected to the rear side of the headrest seat 2, and the rear end of the connecting seat 4 is connected with the upper cross beam 11 through the rotating sleeve 41 sleeved on the outer periphery of the upper cross beam 11. Under the driving of the driving assembly 3, the headrest seat 2 and the connecting seat 4 can synchronously oscillate vertically around the upper cross beam 11 until the position that is convenient for the passenger to comfortably lean against. The above-mentioned structure can adjust the headrest seat 2 at different angles according to the riding needs of different passengers.

[0029] In some embodiments, the above-mentioned features of the connecting seat 4 can adopt the structure as shown in Figures 1 to 3 . Referring to Figures 1 to 3 , two connecting seats 4 are arranged, the two connecting seats 4 are connected with the headrest seat 2, and the two connecting seats 4 are arranged along the running direction of the upper cross beam 11.

[0030] In the embodiment, the upper cross beam 11 extends along the left-right direction of the vehicle body, and the headrest seat 2 is connected to the front side of the upper cross beam 11. In order to improve the strength of the structural connection and facilitate the spatial arrangement of the components, the connecting seat 4 is provided in two, and the two connecting seats 4 are arranged in the left-right direction and located at the positions close to the left and right ends on the rear side of the headrest seat 2, which can be effectively connected with the headrest seat 2. The space between the two connecting seats 4 facilitates the installation of the first gear 31 and the second gear 32, so that the first gear 31 and the second gear 32 have sufficient meshing space. The above structure can reduce the occupied space of the structure, which helps to improve the rationality of the structural arrangement.

[0031] In some embodiments, the above-mentioned feature connecting seat 4 can adopt the structure as shown in Figure 2 . Referring to Figure 2 , the output end of the rotary drive member 33 is connected with a transmission shaft 5, the first gear 31 is fixedly sleeved on the transmission shaft 5, the rotary drive member 33 is connected to one of the connecting seats 4, and the other connecting seat 4 is provided with a mounting shaft seat 51 for mounting the outer end of the transmission shaft 5.

[0032] In the embodiment, the output power of the rotary drive member 33 is transmitted to the first gear 31 through the transmission shaft 5, and the effective driving of the headrest seat 2 is realized by the meshing action of the first gear 31 and the second gear 32. Specifically, the rotary drive member 33 is connected to one of the connecting seats 4, the transmission shaft 5 is connected to the output end of the rotary drive member 33 and extends to the side of the other connecting seat 4, the other connecting seat 4 is provided with a mounting shaft seat 51, and the outer end of the transmission shaft 5 is rotatably connected to the mounting shaft seat 51.

[0033] The first gear 31 is fixedly sleeved on the transmission shaft 5 and can form meshing action with the second gear 32, so as to make the rotary drive member 33, the connecting seat 4, the transmission shaft 5, the first gear 31 and the headrest seat 2 produce vertical oscillation under the action of the rotary drive member 33, thereby facilitating the adjustment of the pitch position of the headrest seat 2.

[0034] In some embodiments, the above-mentioned feature first gear 31 and second gear 32 can adopt the structure as shown in Figures 1 to 3 . Referring to Figures 1 to 3 , two first gears 31 are arranged in the axial direction of the transmission shaft 5, and two second gears 32 are also arranged and correspondingly mesh with the first gears 31.

[0035] In the embodiment, two first gears 31 are arranged in the axial direction of the transmission shaft 5. Two second gears 32 are also correspondingly arranged, which can effectively drive different positions of the headrest seat 2 left and right, ensure that the headrest seat 2 can smoothly oscillate vertically, and avoid structural jam caused by uneven force.

[0036] On the basis of the above structure, please refer to Figure 3A reinforcing ring 36 is arranged on the upper cross beam 11. The reinforcing ring 36 is arranged between the two second gears 32 and can reinforce the middle part of the upper cross beam 11, avoiding the deformation of the upper cross beam 11 caused by the excessive force on the second gears 32, and improving the stability and effectiveness of the driving action.

[0037] In some possible implementation manners, the second gear 32 has the structure as shown in Figures 3 to 4 . Figures 3 to 4 The outer periphery of the second gear 32 is provided with a fan-shaped limiting part 34 protruding outward, and the fan-shaped limiting part 34 has a limiting surface 35 for limiting the swing range of the first gear 31.

[0038] In this embodiment, according to the riding demand of the passenger, the headrest seat 2 is located at the front side of the upper cross beam 11, and the headrest seat 2 only swings within a certain range at the front side of the upper cross beam 11. Therefore, the second gear 32 can only be provided with teeth in the outer periphery part, that is, the area close to the front side and the upper part, and the other areas do not need to be provided with teeth.

[0039] Specifically, the fan-shaped limiting part 34 is arranged at the rear side and the lower part of the second gear 32, and the fan-shaped limiting part 34 effectively limits the swing range of the first gear 31, avoiding the problem that the headrest seat 2 is difficult to use due to the excessive swing of the first gear 31. The limiting surface 35 can effectively constrain the swing range of the first gear 31 and the headrest seat 2, improve the safety of the device operation, and also meet the leaning demand of the passenger.

[0040] In some possible implementation manners, the headrest seat 2 has the structure as shown in Figure 1 , Figure 2 and Figure 4 . Referring to Figure 1 , Figure 2 and Figure 4 , the headrest seat 2 extends in the horizontal direction, and the middle part of the headrest seat 2 is arc-shaped and protrudes away from the connecting seat 4.

[0041] In this embodiment, the headrest seat 2 extends in the horizontal direction, that is, in the left-right direction, which can adapt to the neck area of the human body, radiate in a certain range in the left-right direction, and improve the convenience of leaning. The middle part of the headrest seat 2 in the height direction is arc-shaped and protrudes forward, which adapts to the curvature of the inwardly concave neck area of the human body, matches the physiological curve of the human body, and effectively improves the comfort of leaning.

[0042] In some embodiments, the headrest seat 2 can have the structure as shown in Figure 1 , Figure 2 and Figure 4 . Referring to Figure 1 , Figure 2 andFigure 4 The headrest seat 2 gradually decreases in thickness from the middle to the upper edge, and gradually decreases in thickness from the middle to the lower edge, and the upper edge and the lower edge of the headrest seat 2 are provided with arc transition portions 21.

[0043] In the embodiment, the middle part of the headrest seat 2 is thicker, and the upper and lower edge regions are thinner, which meets the strength support performance and realizes the weight reduction effect of the structure. The arc transition portions 21 provided on the upper edge or the lower edge of the headrest seat 2 can improve the comfort when contacting the human body, and avoid the discomfort caused by rigid contact. The front side of the headrest seat 2 can also be provided with a flexible cushion layer, which further ensures the softness when contacting.

[0044] In some possible implementation manners, the headrest angle adjusting structure further includes a controller, which is electrically connected with the rotary driving member 33 and is configured to send a control instruction to the rotary driving member 33. The controller can be electrically connected with the rotary driving member 33, and the control instruction is sent to the rotary driving member 33 by the controller to control the start-stop action of the rotary driving member 33, so that automatic operation can be realized by setting the controller, and the cumbersome operation of manually controlling the rotary driving member 33 is avoided.

[0045] Specifically, a one-key re-memory function can be set, and scenes to be memorized, such as a driving position, a resting position and a standby position, can be preset in the controller. By selecting different scenes, the controller sends an instruction to the rotary driving member 33, so that the automatic adjustment demand is met.

[0046] Based on the same inventive concept, the embodiment of the present application further provides a vehicle. The vehicle includes the headrest angle adjusting structure. The vehicle drives the connecting frame and the headrest seat 2 to vertically swing relative to the headrest frame 1 by using the driving assembly 3, so that the angle of the headrest seat 2 can be adjusted according to the needs of different passengers, the comfort of the driver or passenger when using the headrest is improved, the operation process is simplified, the adjustment efficiency is improved, and the automation degree of the vehicle is improved.

[0047] The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A headrest angle adjustment structure, characterized in that, The device includes a headrest frame (1), a headrest seat (2), and a drive assembly (3). The headrest seat (2) is rotatably connected to the front side of the headrest frame (1) via a connecting seat (4). The drive assembly (3) includes a first gear (31), a second gear (32), and a rotary drive member (33). The rotary drive member (33) and the first gear (31) are both rotatably connected to the connecting seat (4), and the first gear (31) is connected to the output end of the rotary drive member (33). The second gear (32) is fixedly connected to the headrest frame (1) and meshes with the first gear (31). The first gear (31) can drive the headrest seat (2) to swing around the main shaft of the second gear (32) under the action of the rotary drive member (33).

2. The headrest angle adjustment structure as described in claim 1, characterized in that, The headrest frame (1) has a horizontally extending upper crossbeam (11), and the connecting seat (4) is fixedly connected to the rear side of the headrest seat (2). The connecting seat (4) has a rotating sleeve (41) sleeved on the upper crossbeam (11).

3. The headrest angle adjustment structure as described in claim 2, characterized in that, There are two connecting seats (4), both of which are connected to the headrest seat (2), and the two connecting seats (4) are spaced apart along the direction of the upper crossbeam (11).

4. The headrest angle adjustment structure as described in claim 3, characterized in that, The output end of the rotary drive (33) is connected to a drive shaft (5), the first gear (31) is fixedly sleeved on the drive shaft (5), the rotary drive (33) is connected to one of the connecting seats (4), and the other connecting seat (4) is provided with a mounting shaft seat (51) for mounting the outer end of the drive shaft (5).

5. The headrest angle adjustment structure as described in claim 4, characterized in that, Two first gears (31) are provided at intervals along the axial direction of the transmission shaft (5), and two second gears (32) are also provided, which mesh with the first gears (31) one by one.

6. The headrest angle adjustment structure as described in claim 1, characterized in that, The outer periphery of the second gear (32) is provided with an outwardly protruding fan-shaped limiting part (34), and the fan-shaped limiting part (34) has a limiting surface (35) for limiting the swing amplitude of the first gear (31).

7. The headrest angle adjustment structure as described in any one of claims 1-6, characterized in that, The headrest seat (2) extends horizontally, and the middle part of the headrest seat (2) is provided to be arc-shaped protrusion away from the connecting seat (4).

8. The headrest angle adjustment structure as described in claim 7, characterized in that, The thickness of the headrest seat (2) gradually decreases from the middle to the upper edge, and the thickness of the headrest seat (2) gradually decreases from the middle to the lower edge. Both the upper and lower edges of the headrest seat (2) are provided with arc-shaped transition portions (21).

9. The headrest angle adjustment structure as described in any one of claims 1-6, characterized in that, The headrest angle adjustment structure also includes a controller, which is electrically connected to the rotation drive (33) and is used to send control commands to the rotation drive (33).

10. A vehicle, characterized in that, The headrest angle adjustment structure includes any one of claims 1-9.

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