Automobile seat headrest height adjusting and fixing mechanism

Abstract

The utility model relates to the technical field of automobile seat headrest adjustment, and discloses an automobile seat headrest height adjusting and fixing mechanism which comprises a seat framework, a supporting plate is fixedly installed outside the seat framework, a positioning cylinder is fixedly installed outside the seat framework, a headrest framework is installed on the inner wall of the positioning cylinder in a sliding mode, and the headrest framework is fixedly installed on the supporting plate. An adjusting mechanism is arranged on the front face of the supporting plate, and a limiting mechanism is arranged in the adjusting mechanism. By rotating a hand wheel, a rotating column and a second bevel gear can rotate conveniently, so that a first bevel gear and a threaded column can rotate conveniently, the height of a lifting plate and the height of a headrest framework can be adjusted conveniently, the situation that the headrest framework and the headrest move substantially is avoided, the height of the headrest can be adjusted accurately, and the requirements of a passenger are met. And through the arranged inserting columns, the headrest framework can be conveniently limited, and the height of the headrest can be conveniently adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile seat headrest adjustment, specifically is a kind of automobile seat headrest height adjustment fixing mechanism. BACKGROUND

[0002] In automobile design, automobile seat design will be directly reflected in comfort. Among them, the position adjustment of seat headrest can improve the comfort of head, and at the same time when the car has an accident, especially the rear collision causes the sudden backward movement of the occupant, the headrest can also prevent the injury of the neck and head of the occupant. Because the height of the occupant is different, the height of the headrest is different, so it is necessary to conveniently adjust the height of the headrest to meet the use requirement.

[0003] In the prior art, the pawl and the gear groove structure are usually used, and the headrest is automatically locked after being moved to the target position by pressing the button, but in actual use, the height of the headrest is adjusted by manually lifting or pressing, which is prone to the situation that the headrest is moved greatly due to large force, and it is inconvenient to meet the accurate height adjustment, so a kind of automobile seat headrest height adjustment fixing mechanism is needed to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of automobile seat headrest height adjustment fixing mechanism to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of automobile seat headrest height adjustment fixing mechanism, including seat framework, the outside fixed mounting of seat framework has support plate, the outside fixed mounting of seat framework has locating cylinder, headrest framework is slidably installed on the inner wall of locating cylinder, the front of support plate is provided with adjusting mechanism, the inside of adjusting mechanism is provided with limiting mechanism.

[0006] Preferably, the adjusting mechanism comprises a connecting frame fixedly installed on the front face of the support plate, a first bevel gear rotatably installed in the connecting frame, a second bevel gear meshing with the outer portion of the first bevel gear, a rotating column fixedly installed at the left end of the second bevel gear, the rotating column being rotatably installed with the connecting frame, a hand wheel fixedly installed at the left end of the rotating column, a connecting plate rotatably installed on the outer portion of the rotating column, a threaded column fixedly installed at the top of the first bevel gear, the threaded column being rotatably installed with the connecting frame, an extension plate fixedly installed on the front face of the support plate, the threaded column being rotatably installed with the extension plate, a lifting plate threadedly installed on the outer portion of the threaded column, the lifting plate being slidably installed on the front face of the support plate, a positioning seat fixedly installed at the top of the lifting plate, the headrest framework being slidably installed with the positioning seat, a sliding block fixedly installed at the back of the lifting plate, a guide column fixedly installed in the support plate, the sliding block being slidably installed on the outer portion of the guide column, and the height of the headrest is conveniently and accurately adjusted.

[0007] Preferably, a through groove is formed in the corresponding position of the inner portion of the support plate and the sliding block is slidably installed in the through groove, so that the sliding block is conveniently and stably lifted.

[0008] Preferably, the limiting mechanism comprises a sliding plate slidably installed on the inner wall of the positioning seat, a plug column fixedly installed on the outer side of the sliding plate, the plug column being slidably installed with the positioning seat, an extension rod fixedly installed on the inner side of the sliding plate, the extension rod being fixedly installed with the positioning seat, a spring fixedly installed between the inner side of the sliding plate and the positioning seat, a bent plate fixedly installed at the top of the sliding plate, a connecting seat fixedly installed at the bottom of the extension plate, and a roller rotatably installed in the connecting seat, and the roller is in contact with the inclined surface of the bent plate when the bent plate is lifted, so that the bent plate is moved and the headrest framework is conveniently and quickly released from the limiting work.

[0009] Preferably, a through hole is formed in the corresponding position of the inner portion of the headrest framework and the plug column is slidably installed in the through hole, so that the headrest framework is conveniently and quickly limited.

[0010] Preferably, a through groove is formed in the corresponding position of the inner portion of the positioning seat and the bent plate is slidably installed in the through groove, so that the bent plate is conveniently and quickly moved.

[0011] Compared with the prior art, the automobile seat headrest height adjusting and fixing mechanism has the following beneficial effects:

[0012] 1. The height adjusting and fixing mechanism of the automobile seat headrest, through the adjusting mechanism, in the using process, the rotating handle is rotated, the rotating column and the second bevel gear are rotated, the first bevel gear and the threaded column are rotated, the height of the lifting plate and the headrest framework is adjusted, the headrest framework and the headrest are prevented from moving greatly, the height of the headrest is accurately adjusted, and the needs of the passenger are met.

[0013] 2. The height adjusting and fixing mechanism of the automobile seat headrest, through the limiting mechanism, in the using process, the plug column is arranged, the headrest framework is limited, the height of the headrest is adjusted, when the headrest framework and the headrest need to be disassembled, the lifting plate is moved upwards until the roller contacts the bending plate, the bending plate is moved, the plug column is away from the headrest framework, the limiting work of the headrest framework is quickly released, and the headrest framework and the headrest are conveniently disassembled. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for the ordinary skilled in the art, other drawings can be obtained according to these drawings without the creative labor:

[0015] Figure 1 It is the front structure schematic view of the utility model;

[0016] Figure 2 It is the adjusting mechanism structure schematic view of the utility model;

[0017] Figure 3 It is the sliding block position relation schematic view of the utility model;

[0018] Figure 4 It is the limiting mechanism structure schematic view of the utility model.

[0019] In the drawing: 1, seat framework;2, support plate;3, positioning cylinder;4, headrest framework;5, adjusting mechanism;501, connecting frame;502, first bevel gear;503, second bevel gear;504, rotating column;505, handle;506, connecting plate;507, threaded column;508, extension plate;509, lifting plate;510, positioning seat;511, sliding block;512, guide column;6, limiting mechanism;601, sliding plate;602, plug column;603, telescopic rod;604, spring;605, bending plate;606, connecting seat;607, roller. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0021] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense. For example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication between two elements or the interaction between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0022] Embodiment one:

[0023] Please refer to Figures 1-3 The present application provides a technical scheme: a height adjusting and fixing mechanism for a headrest of an automobile seat, comprising a seat framework 1, a support plate 2 fixedly installed outside the seat framework 1, a positioning cylinder 3 fixedly installed outside the seat framework 1, a headrest framework 4 slidingly installed on the inner wall of the positioning cylinder 3, an adjusting mechanism 5 arranged on the front surface of the support plate 2, and a limiting mechanism 6 arranged inside the adjusting mechanism 5.

[0024] Further, the adjusting mechanism 5 comprises a connecting frame 501 fixedly installed on the front face of the support plate 2, a first bevel gear 502 rotatably installed in the connecting frame 501, a second bevel gear 503 meshing with the outer part of the first bevel gear 502, a rotating column 504 fixedly installed at the left end of the second bevel gear 503, the rotating column 504 being rotatably installed with the connecting frame 501, a hand wheel 505 fixedly installed at the left end of the rotating column 504, a connecting plate 506 rotatably installed on the outer part of the rotating column 504, especially, the rotating column 504 penetrates through the filler in the car seat, the connecting plate 506 is fixedly installed with the wrapping layer on the surface of the seat, so as to facilitate the rotating work of the hand wheel 505, a threaded column 507 is fixedly installed on the top of the first bevel gear 502, the threaded column 507 is rotatably installed with the connecting frame 501, an extension plate 508 is fixedly installed on the front face of the support plate 2, the threaded column 507 is rotatably installed with the extension plate 508, a lifting plate 509 is threadedly installed on the outer part of the threaded column 507, the lifting plate 509 is slidingly installed on the front face of the support plate 2, a positioning seat 510 is fixedly installed on the top of the lifting plate 509, the headrest framework 4 is slidingly installed with the positioning seat 510, a sliding block 511 is fixedly installed on the back of the lifting plate 509, a guide column 512 is fixedly installed in the support plate 2, the sliding block 511 is slidingly installed on the outer part of the guide column 512, so as to facilitate the accurate adjustment of the height of the headrest.

[0025] Further, a through slot is formed in the support plate 2 at the position corresponding to the sliding block 511, and the sliding block 511 is slidingly installed in the through slot, so as to facilitate the stable lifting of the sliding block 511.

[0026] Embodiment two:

[0027] Please refer to Figure 4 , and further get, the limiting mechanism 6 comprises a sliding plate 601 slidingly installed on the inner wall of the positioning seat 510, an insertion column 602 fixedly installed on the outer side of the sliding plate 601, the insertion column 602 being slidingly installed with the positioning seat 510, a telescopic rod 603 fixedly installed on the inner side of the sliding plate 601, the telescopic rod 603 being fixedly installed with the positioning seat 510, a spring 604 fixedly installed between the inner side of the sliding plate 601 and the positioning seat 510, a bent plate 605 fixedly installed on the top of the sliding plate 601, a connecting seat 606 fixedly installed on the bottom of the extension plate 508, a roller 607 rotatably installed in the connecting seat 606, especially, the roller 607 is in contact with the inclined surface of the bent plate 605 along with the upward movement of the bent plate 605, so as to facilitate the movement of the bent plate 605 and quickly release the limiting work of the headrest framework 4.

[0028] Further, a through hole is formed in the headrest framework 4 at the position corresponding to the insertion column 602, and the insertion column 602 is slidingly installed in the through hole, so as to facilitate the limiting work of the headrest framework 4.

[0029] Further, the inner part of the positioning seat 510 is provided with a through slot at the position corresponding to the bending plate 605, and the bending plate 605 is slidingly installed in the through slot, facilitating the movement of the bending plate 605.

[0030] In actual operation, when the device is used, the rotating handle 505 is rotated to rotate the rotating column 504 and the second bevel gear 503, so as to rotate the first bevel gear 502 and the threaded column 507, so that the lifting plate 509, the positioning seat 510 and the headrest framework 4 are lifted to accurately adjust the height of the headrest framework 4 and the headrest. When the headrest needs to be disassembled, the lifting plate 509 is moved upward until the roller 607 contacts the bending plate 605, and the bending plate 605 is moved as the lifting plate 509 continues to move upward, so that the sliding plate 601 extrudes the spring 604, and the insertion column 602 moves away from the headrest framework 4, thereby releasing the limiting work of the headrest framework 4, and the headrest is disassembled. When the headrest framework 4 needs to be installed, the headrest framework 4 passes through the positioning cylinder 3, and the headrest framework 4 is positioned under the cooperation of the positioning seat 510. By pressing the headrest downward, the rotating handle 505 moves the lifting plate 509 downward, and under the cooperation of the spring 604, the sliding plate 601, the bending plate 605 and the insertion column 602 return to the original position, completing the limiting work of the headrest framework 4 and the headrest.

[0031] It should be noted that in this text, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.

Claims

1. A car seat headrest height adjustment and fixing mechanism, comprising a seat frame (1), characterized in that: The seat frame (1) is fixedly mounted with a support plate (2), and the seat frame (1) is fixedly mounted with a positioning cylinder (3). A headrest frame (4) is slidably mounted on the inner wall of the positioning cylinder (3). An adjustment mechanism (5) is provided on the front of the support plate (2), and a limit mechanism (6) is provided inside the adjustment mechanism (5).

2. The car seat headrest height adjustment and fixing mechanism according to claim 1, characterized in that: The adjusting mechanism (5) includes a connecting frame (501), which is fixedly installed on the front of the support plate (2). A first bevel gear (502) is rotatably installed inside the connecting frame (501), and a second bevel gear (503) meshes with the outside of the first bevel gear (502). A rotating column (504) is fixedly installed on the left end of the second bevel gear (503). The rotating column (504) is rotatably installed with the connecting frame (501). A handwheel (505) is fixedly installed on the left end of the rotating column (504). A connecting plate (506) is rotatably installed on the outside of the rotating column (504). A threaded column (507) is fixedly installed on the top of the first bevel gear (502). The support plate (2) is rotatably installed with the connecting frame (501). An extension plate (508) is fixedly installed on the front side of the support plate (2). The threaded column (507) is rotatably installed with the extension plate (508). A lifting plate (509) is installed on the external thread of the threaded column (507). The lifting plate (509) is slidably installed on the front side of the support plate (2). A positioning seat (510) is fixedly installed on the top of the lifting plate (509). The headrest frame (4) is slidably installed with the positioning seat (510). A slider (511) is fixedly installed on the back of the lifting plate (509). A guide column (512) is fixedly installed inside the support plate (2). The slider (511) is slidably installed outside the guide column (512).

3. The car seat headrest height adjustment and fixing mechanism according to claim 2, characterized in that: The support plate (2) has a through groove at the position corresponding to the slider (511), and the slider (511) is slidably installed in the through groove.

4. The car seat headrest height adjustment and fixing mechanism according to claim 2, characterized in that: The limiting mechanism (6) includes a sliding plate (601), which is slidably mounted on the inner wall of the positioning seat (510). A pin (602) is fixedly mounted on the outer side of the sliding plate (601), and the pin (602) is slidably mounted on the positioning seat (510). A telescopic rod (603) is fixedly mounted on the inner side of the sliding plate (601), and the telescopic rod (603) is fixedly mounted on the positioning seat (510). A spring (604) is fixedly mounted between the inner side of the sliding plate (601) and the positioning seat (510). A bending plate (605) is fixedly mounted on the top of the sliding plate (601). A connecting seat (606) is fixedly mounted on the bottom of the extension plate (508), and a roller (607) is rotatably mounted inside the connecting seat (606).

5. The car seat headrest height adjustment and fixing mechanism according to claim 4, characterized in that: The headrest frame (4) has a through hole at the position corresponding to the insertion post (602), and the insertion post (602) is slidably installed in the through hole.

6. The car seat headrest height adjustment and fixing mechanism according to claim 4, characterized in that: The positioning seat (510) has a through groove at the position corresponding to the bending plate (605), and the bending plate (605) is slidably installed in the through groove.

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