CN218558656U - Headrest structure and vehicle with same - Google Patents

Abstract

The utility model discloses a headrest structure and vehicle that has it, headrest structure includes: a bracket assembly for attachment to a seat; the headrest component is rotatably connected with the bracket assembly and is provided with a first clamping part; spacing subassembly, spacing subassembly install in the support assembly, spacing subassembly include for the mobilizable second joint portion of support assembly, second joint portion when the primary importance with first joint portion joint locking and when the secondary importance with first joint portion separation unblock. The utility model discloses a headrest structure, through the removal of control second joint portion for the support assembly, can realize the locking and the unblock of headrest structure, and the structure is simpler, is convenient for reduce the operation degree of difficulty.

Description

Headrest structure and vehicle with same

Technical Field

The utility model belongs to the technical field of the vehicle technique and specifically relates to a headrest structure and vehicle that has it.

Background

Among the correlation technique, when the driver drives the vehicle, can fold the headrest of back row seat, for the driver provides wider back vision field, very big improvement the security of driving, and can fold the headrest when laying the back row seat back flat, the headrest of back row seat and the problem of front seat interference when having avoided folding the seat back.

However, the existing adjusting mechanism of the headrest has the problems of complex design, complex unlocking force transmission process and the like, so that the operation difficulty is high, and the use experience of a user is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a headrest structure, through the removal of control second joint portion for support assembly, can realize the locking and the unblock of headrest structure, and the structure is simpler, is convenient for reduce the operation degree of difficulty.

According to the utility model discloses headrest structure, include: a bracket assembly for attachment to a seat; the headrest component is rotatably connected with the bracket assembly and is provided with a first clamping part; spacing subassembly, spacing subassembly install in the support assembly, spacing subassembly include for the mobilizable second joint portion of support assembly, second joint portion when the primary importance with first joint portion joint locking and when the secondary importance with first joint portion separation unblock.

According to the utility model discloses headrest structure, when its second joint portion removed to the first position for the support assembly, second joint portion and first joint portion joint locking, and second joint portion when removing to the second position for the support assembly, second joint portion and the separation unblock of first joint portion, from this, through the removal of control second joint portion for the support assembly, can realize the locking and the unblock of headrest structure, and the structure is simpler, is convenient for reduce the operation degree of difficulty.

According to the utility model discloses the headrest structure of some embodiments, at least part of second joint portion is located the below of first joint portion, just second joint portion is suitable for along upper and lower direction removal with first position with switch between the second position.

According to the utility model discloses headrest structure of some embodiments, spacing subassembly still includes spacing support and elastic component, spacing support with the support assembly links to each other, movably install in second joint portion spacing support, the elastic component be used for with second joint portion orientation first position pretension.

According to the utility model discloses the headrest structure of some embodiments, be formed with the direction cavity in the spacing support, second joint portion with the elastic component all is located in the direction cavity.

According to the utility model discloses the headrest structure of some embodiments, the elastic component structure is the spring, the spring housing is located second joint portion.

According to the utility model discloses headrest structure of some embodiments, first joint portion structure is the joint interface, second joint portion structure is the block tongue, just the upper end of block tongue is formed with the joint arch, the joint arch with joint interface joint cooperation.

According to the utility model discloses the headrest structure of some embodiments, the latch includes spring bolt and inserted sheet, the lock tongue cover is located the inserted sheet, the joint arch is located the upper end of spring bolt, the upper end of spring with the joint is protruding to offset, the lower extreme of spring with the lower extreme of inserted sheet links to each other.

According to some embodiments of the present invention, the headrest assembly comprises a headrest body, a headrest bracket and a connecting bracket, wherein the headrest body is connected to the headrest bracket, the headrest bracket is fixedly connected to the connecting bracket, and the first clamping portion is disposed on the connecting bracket; the support assembly comprises a support body and a mounting support, the mounting support is mounted on the support body, and the connecting support is rotatably connected with the mounting support through a rotating shaft.

According to the utility model discloses headrest structure of some embodiments, the cover is equipped with the unblock torsional spring in the axis of rotation, the unblock torsional spring is located linking bridge with between the installing support, wherein, the one end of unblock torsional spring with spacing subassembly links to each other, the other end of unblock torsional spring with linking bridge links to each other.

The utility model also provides a vehicle.

According to the utility model discloses vehicle, including any one above-mentioned embodiment headrest structure.

The vehicle and the headrest structure have the same advantages compared with the prior art, and the detailed description is omitted.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of a headrest structure according to some embodiments of the present invention;

FIG. 2 is an exploded view of the headrest structure shown in FIG. 1;

FIG. 3 is a schematic view of an attachment bracket of the headrest structure shown in FIG. 1;

FIG. 4 is an assembly view of the attachment bracket and headrest bracket shown in FIG. 3;

FIG. 5 is an exploded view of a restraining assembly of the headrest structure shown in FIG. 1;

fig. 6 is an assembly view of the latch bolt and insert of the spacing assembly shown in fig. 5;

FIG. 7 is a schematic view of a stop assembly of the headrest structure shown in FIG. 1;

FIG. 8 is a schematic view of a bracket assembly of the headrest structure shown in FIG. 1;

FIG. 9 is an assembly view of the headrest bracket, the connecting bracket and the bracket assembly shown in FIG. 2;

FIG. 10 is an assembly view of the headrest bracket, the connecting bracket, the bracket assembly and the stop assembly shown in FIG. 9;

FIG. 11 is a front view of the headrest structure shown in FIG. 1;

FIG. 12 isbase:Sub>A cross-sectional view at A-A of the headrest structure shown in FIG. 11 (with the second snap-in portion in the first position);

fig. 13 is a sectional view of a critical state of the second catching portion of the headrest structure shown in fig. 12 when unlocked;

fig. 14 is a sectional view of a final state of the second catching portion of the headrest structure shown in fig. 12 after unlocking.

Reference numerals:

the head rest structure 100 is provided with a structure,

a bracket assembly 10, a bracket body 11, a mounting bracket 12, a connecting hole 121,

a headrest assembly 20, a first clip portion 21, a clip interface 211,

a headrest body 22, a frame 221, a headrest foam 222, a headrest face cover 223,

the head rest support 23 is provided with a head rest,

a connecting bracket 24, a mounting hole 241, a connecting screw 25, a clamp spring 26, a bushing 27,

a limit component 30, a second clamping part 31, a clamping tongue 311, a lock tongue 3111, an embedded sheet 3112, a clamping bulge 312,

a limit bracket 32, a guide cavity 321, an elastic member 33,

a rotating shaft 40, an unlocking torsion spring 41, a limiting shaft sleeve 42,

structural reinforcement 50, cushion 51.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials.

A headrest structure 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 14.

As shown in fig. 1 and 11, a headrest structure 100 according to an embodiment of the present invention includes: a bracket assembly 10, a head restraint assembly 20, and a stop assembly 30.

Specifically, support assembly 10 is used for linking to each other with the seat, and headrest subassembly 20 rotationally links to each other with support assembly 10, and headrest subassembly 20 is equipped with first joint portion 21, and spacing subassembly 30 is installed in support assembly 10, and spacing subassembly 30 includes for the mobilizable second joint portion 31 of support assembly 10, and second joint portion 31 is with the locking of first joint portion 21 joint when the first position and with the separation unblock of first joint portion 21 when the second position.

It is understood that the bracket assembly 10 is connected to the headrest assembly 20 and the seat, respectively, and the headrest assembly 20 is rotatable relative to the bracket assembly 10 such that the headrest assembly 20 is rotatable relative to the seat, wherein the seat may be a front seat or a rear seat, without limitation.

For example, the seat is the back row seat, and headrest subassembly 20 rotates for the back row seat to fold the headrest of back row seat, for the driver provides wider back vision field, very big improvement the safety of driving, and can fold the headrest when laying the back row seat back flat, the headrest of back row seat interferes with the front-seat when having avoided folding the seat back.

Further, headrest subassembly 20 is equipped with first joint portion 21, and spacing subassembly 30 is installed in support assembly 10, and spacing subassembly 30 has second joint portion 31, and first joint portion 21 and second joint portion 31 are suitable for the joint cooperation, and wherein, second joint portion 31 can remove for support assembly 10, and in second joint portion 31 with first joint portion 21 joint locking when the first position, second joint portion 31 separates the unblock with first joint portion 21 when the second position.

Therefore, the headrest structure 100 can be locked and unlocked by controlling the movement of the second clamping portion 31 relative to the bracket assembly 10, and the structure is simpler, so that the operation difficulty is reduced.

For example, headrest assembly 20 has locking state and fold condition, wherein, during the locking state, headrest assembly 20 does not take place to rotate, during fold condition, headrest assembly 20 rotates to folding position for the seat, when headrest assembly 20 is in the locking state, second joint portion 31 at the primary importance and with first joint portion 21 joint locking, thereby be convenient for fix headrest assembly 20, with the structural stability of reinforcing headrest assembly 20, when headrest assembly 20 rotates to fold condition by the locking state, second joint portion 31 is removed to the secondary importance and with first joint portion 21 separation unblock by the primary importance, thereby be convenient for headrest assembly 20 can rotate for the seat.

Wherein, it should be noted that the second clamping portion 31 can be connected with the cable, and the second clamping portion 31 can be pulled by the user to drive the second clamping portion 31 to move relative to the bracket assembly 10 when moving from the first position to the second position, so as to be convenient for reduce the moving difficulty of the second clamping portion 31, and the structure is simpler, and is beneficial to reducing the operation difficulty.

Of course, as to the driving manner of the second engaging portion 31, the above-mentioned cable is only used for illustration and not meant to be limited thereto, for example, the cable may be pulled by a motor, and a motion track groove is disposed on the bracket assembly 10, so that the cable moves along the motion track groove to drive the second engaging portion 31 to move, thereby implementing the folding motion of the headrest assembly 20.

According to the utility model discloses headrest structure 100, when its second joint portion 31 removed to the first position for support assembly 10, second joint portion 31 and the locking of first joint portion 21 joint, and second joint portion 31 when removing to the second position for support assembly 10, second joint portion 31 and the unblock of the separation of first joint portion 21, from this, through the removal of control second joint portion 31 for support assembly 10, can realize headrest structure 100's locking and unblock, and the structure is simpler, be convenient for reduce the operation degree of difficulty.

In some embodiments, as shown in fig. 10-14, at least a portion of the second clamping portion 31 is located below the first clamping portion 21, and the second clamping portion 31 is adapted to move in an up-and-down direction to switch between the first position and the second position.

From this, at least part of second joint portion 31 is located the below of first joint portion 21 to be convenient for save the ascending installation space of width direction, and when pulling second joint portion 31 switches between primary importance and second place, second joint portion 31 can follow the up-and-down direction and move, so that reduce the operation degree of difficulty.

In some embodiments, as shown in fig. 5 and 7, the position-limiting component 30 further includes a position-limiting bracket 32 and an elastic member 33, the position-limiting bracket 32 is connected to the bracket assembly 10, the second clamping portion 31 is movably mounted on the position-limiting bracket 32, and the elastic member 33 is used for pre-tensioning the second clamping portion 31 toward the first position.

For example, the limit bracket 32 and the bracket assembly 10 may be connected by the connection screw 25, but the limit bracket 32 and the bracket assembly 10 may also be connected by a snap connection, a plug connection, or a magnetic attraction fit, which is not limited herein.

From this, through setting up spacing support 32, so that install second joint portion 31 movably in spacing support 32, and elastic component 33 is used for second joint portion 31 towards first position pretension, thereby be convenient for when second joint portion 31 does not receive artificial external force, its second joint portion 31 can be towards first position elasticity pretension under the effect of the elastic force of elastic component 33, and then guarantee second joint portion 31 when first position, the joint stability of second joint portion 31 and first joint portion 21.

In some embodiments, as shown in fig. 5, a guide cavity 321 is formed in the position limiting bracket 32, and as shown in fig. 7, the second clamping portion 31 and the elastic member 33 are both located in the guide cavity 321.

From this, through setting up direction cavity 321, and second joint portion 31 and elastic component 33 all are located direction cavity 321 to in the effect of playing the protection to second joint portion 31 and elastic component 33, avoid second joint portion 31 and elastic component 33 to take place to interfere with other structures, simultaneously, direction cavity 321 can provide the removal space for second joint portion 31, and is convenient for play the effect of direction to the removal of second joint portion 31.

Further, as shown in fig. 7, the elastic member 33 is configured as a spring, and the spring is sleeved on the second clamping portion 31.

From this, through locating second joint portion 31 with the spring housing, be convenient for save installation space to realize spacing subassembly 30's miniaturized design.

In some embodiments, as shown in fig. 3, the first clamping portion 21 is configured as a clamping interface 211, and as shown in fig. 7, the second clamping portion 31 is configured as a clamping tongue 311, and a clamping protrusion 312 is formed at the upper end of the clamping tongue 311, and the clamping protrusion 312 is in clamping fit with the clamping interface 211.

From this, through constructing first joint portion 21 as joint interface 211, second joint portion 31 is constructed as joint tongue 311, and the upper end of joint tongue 311 is formed with the joint arch 312, on the one hand, be convenient for through the removal of joint tongue 311 in direction cavity 321 in order to realize joint arch 312 and joint interface 211's joint locking or separation unblock, even if be convenient for reduce the joint degree of difficulty, on the other hand, be convenient for reduce the processing degree of difficulty, do benefit to reduction in production cost.

In some embodiments, as shown in fig. 6, the latch 311 includes a latch 3111 and an insert 3112, the latch 3111 is sleeved on the insert 3112, the latch protrusion 312 is disposed at an upper end of the latch 3111, an upper end of the spring abuts against the latch protrusion 312, and a lower end of the spring is connected to a lower end of the insert 3112.

From this, locate embedded slice 3112 in order to form block 311 through spring bolt 3111 cover, be convenient for strengthen the structural strength of block 311, and the upper end of spring offsets with the protruding 312 of joint, the lower extreme of spring links to each other with the lower extreme of embedded slice 3112, in order to avoid spring and block 311 to separate, do benefit to the stability of being connected of reinforcing spring and block 311, and make the upper end of spring can support to press in the joint protruding so that the protruding 312 of joint pretensions towards first position, so that when second joint portion 31 is not receiving people to be external force, second joint portion 31 can automatic re-setting to first position.

In some embodiments, as shown in fig. 2, the headrest assembly 20 includes a headrest body 22, a headrest bracket 23 and a connecting bracket 24, the headrest body 22 is connected to the headrest bracket 23, the headrest bracket 23 is fixedly connected to the connecting bracket 24, the first clamping portion 21 is disposed on the connecting bracket 24, the bracket assembly 10 includes a bracket body 11 and a mounting bracket 12, the mounting bracket 12 is mounted on the bracket body 11, and the connecting bracket 24 is rotatably connected to the mounting bracket 12 through a rotating shaft 40.

Thus, the connecting bracket 24 is provided so that the headrest bracket 23 can be rotatably connected to the mounting bracket 12 of the bracket assembly 10 through the connecting bracket 24.

For example, as shown in fig. 3, two opposite mounting holes 241 are formed on the connecting bracket 24, and as shown in fig. 8, two opposite connecting holes 121 are formed on the mounting bracket 12 of the bracket assembly 10, and the rotating shaft 40 is inserted through the connecting holes 121 and the mounting holes 241.

During actual assembly, as shown in fig. 4, the connecting bracket 24 and the headrest bracket 23 may be welded at first, and then as shown in fig. 8, at the contact position of the mounting bracket 12 and the headrest bracket 23, the structural reinforcement 50 and the buffer 51 may be installed, wherein the structural reinforcement 50 may be a reinforcing metal plate, so as to enhance the structural strength at the position, and the buffer 51 may be a rubber pad, so as to avoid the rigid collision between the headrest bracket 23 and the structural reinforcement 50 during rotation, so as to prevent the generation of abnormal sound due to the collision between the headrest bracket 23 and the structural reinforcement 50, eliminate the gap between the headrest bracket 23 and the mounting bracket 12, protect the headrest bracket 23, and prolong the service life of the headrest bracket 23.

Next, as shown in fig. 9, the connecting bracket 24 is connected to the mounting bracket 12, at this time, two opposite mounting holes 241 are located between the two opposite connecting holes 121, the rotating shaft 40 is sequentially inserted through the connecting holes 121 and the mounting holes 241, and a bushing 27 is provided at the connection position of the rotating shaft 40 and the mounting holes 241 to enhance the connection stability of the rotating shaft 40 and the connecting bracket 24.

Thus, when the headrest bracket 23 is pivoted, the headrest bracket 23 can pivot the connecting bracket 24 relative to the mounting bracket 12 about the pivot axis 40 as the pivot axis 40, thereby pivoting the headrest assembly 20.

It should be noted that, as shown in fig. 2, the headrest body 22 includes a frame 221, a headrest foam 222 and a headrest cover 223, and the headrest bracket 23 is configured in a structure similar to a U shape, corresponding mounting grooves are provided on the frame 221 so as to mount the frame 221 on the headrest bracket 23, the frame 221 is fixedly connected with the headrest foam 222 through a snap spring 26, and the headrest foam 222 and the headrest cover 223 are sequentially sleeved on the frame 221 to form the headrest body 22.

Further, the cover is equipped with unblock torsional spring 41 on the axis of rotation 40, and unblock torsional spring 41 is located between linking bridge 24 and the installing support 12, and wherein, unblock torsional spring 41's one end links to each other with spacing subassembly 30, and unblock torsional spring 41's the other end links to each other with linking bridge 24.

Thus, by providing the unlocking torsion spring 41 to have a tendency to move from the locked state toward the folded state by the elastic force of the unlocking torsion spring 41, the connecting bracket 24 is caused to have the tendency to move.

Two unlocking torsion springs 41 can be arranged, and the two unlocking torsion springs 41 are respectively positioned between the two side walls of the connecting bracket 24 and the two side walls of the mounting bracket 12, so that the stress of the connecting bracket 24 at the two ends can be balanced, and the motion stability of the connecting bracket 24 can be ensured.

For example, when the headrest assembly 20 is unlocked, as shown in fig. 12, when the second latch portion 31 is located at the first position, the latch protrusion 312 of the latch 311 extends into the latch opening 211 of the connecting bracket 24 to latch and fix the connecting bracket 24, and when the lower end of the latch 311 is forced, as shown in fig. 13, the latch protrusion 312 is separated from the latch opening 211, and at this time, the connecting bracket 24 moves the headrest assembly 20 from the locked state toward the folded state (as the headrest assembly 20 is in the state in fig. 14) under the elastic force of the unlocking torsion spring 41, so as to achieve the movement of the headrest assembly 20.

It should be noted that, when the headrest assembly 20 needs to be moved from the folded state to the locked state, the headrest assembly 20 may be manually turned by the user, so that the connecting bracket 24 presses the upper end of the latch 311 to overcome the elastic pre-tightening force of the elastic element 33, and when the headrest assembly 20 rotates to the locked state, because the upper end of the latch 311 does not bear any pressure any more, at this time, the latch 311 moves to the first position under the elastic pre-tightening force of the elastic element 33, that is, the clamping protrusion 312 of the latch 311 extends into the clamping opening 211 of the connecting bracket 24, so as to clamp and fix the connecting bracket 24.

In some embodiments, a limiting shaft sleeve 42 is further disposed between the unlocking torsion spring 41 and the rotating shaft 40, the limiting shaft sleeve 42 is sleeved on the rotating shaft 40, and the unlocking torsion spring 41 is sleeved on the limiting shaft sleeve 42, so that the structural stability of the unlocking torsion spring 41 is enhanced by disposing the limiting shaft sleeve 42.

The utility model also provides a vehicle.

According to the utility model discloses the vehicle, including any one above-mentioned embodiment headrest structure 100.

According to the utility model discloses vehicle, when second joint portion 31 of its headrest structure 100 moved to the first position for support assembly 10, second joint portion 31 and the locking of first joint portion 21 joint, and second joint portion 31 when moving to the second position for support assembly 10, second joint portion 31 and the separation unblock of first joint portion 21, therefore, through the removal of control second joint portion 31 for support assembly 10, can realize the locking and the unblock of headrest structure 100, and the structure is simpler, be convenient for reduce the operation degree of difficulty.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (8)

1. A headrest structure, comprising:

a bracket assembly for attachment to a seat;

the headrest component is rotatably connected with the bracket assembly and is provided with a first clamping part;

the limiting component is mounted on the support assembly and comprises a second clamping part which is movable relative to the support assembly, and the second clamping part is clamped and locked with the first clamping part when in a first position and separated and unlocked from the first clamping part when in a second position;

the limiting component further comprises a limiting support and an elastic piece, the limiting support is connected with the support assembly, the second clamping part is movably arranged on the limiting support, and the elastic piece is used for pre-tightening the second clamping part towards the first position;

a guide cavity is formed in the limiting support, and the second clamping portion and the elastic piece are located in the guide cavity.

2. The headrest structure according to claim 1, wherein at least a portion of the second catching portion is located below the first catching portion, and the second catching portion is adapted to move in an up-down direction to switch between the first position and the second position.

3. The headrest structure according to claim 1, wherein the elastic member is configured as a spring, and the spring is sleeved on the second catching portion.

4. The headrest structure according to claim 3, wherein the first clamping portion is configured as a clamping interface, the second clamping portion is configured as a clamping tongue, and a clamping protrusion is formed at an upper end of the clamping tongue and is in clamping fit with the clamping interface.

5. The headrest structure of claim 4, wherein the latch includes a latch and an insert, the latch is sleeved on the insert, the clamping protrusion is disposed on the upper end of the latch, the upper end of the spring abuts against the clamping protrusion, and the lower end of the spring is connected with the lower end of the insert.

6. The headrest structure according to claim 1, wherein the headrest assembly comprises a headrest body, a headrest bracket and a connecting bracket, the headrest body is connected with the headrest bracket, the headrest bracket is fixedly connected with the connecting bracket, and the first clamping portion is arranged on the connecting bracket;

the support assembly comprises a support body and a mounting support, the mounting support is mounted on the support body, and the connecting support and the mounting support are rotatably connected through a rotating shaft.

7. The headrest structure of claim 6, wherein an unlocking torsion spring is sleeved on the rotating shaft and located between the connecting bracket and the mounting bracket, wherein one end of the unlocking torsion spring is connected with the limiting assembly, and the other end of the unlocking torsion spring is connected with the connecting bracket.

8. A vehicle characterized by comprising the headrest structure of any one of claims 1 to 7.

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