Seat and vehicle

Abstract

The utility model relates to a seat and a vehicle. The seat comprises a seat framework and a headrest adjusting mechanism. The seat framework comprises a seat frame, a backrest and an angle adjusting device, the backrest is connected with the seat frame through the angle adjusting device, the angle adjusting device is used for adjusting the rotating angle of the backrest, the headrest adjusting mechanism comprises a headrest and a traction assembly, the headrest is installed above the backrest and can move relative to the backrest in the extending direction of the backrest, and one end of the traction assembly is connected with the angle adjusting device; the other end of the traction assembly is connected with the headrest, when the rotating angle is increased, the angle adjusting device can drive the traction assembly to move so as to drive the headrest to move in the direction close to the backrest, and when the rotating angle is decreased, the angle adjusting device can drive the traction assembly to reset so as to drive the headrest to move in the direction away from the backrest. In the back-and-forth rotation adjusting process of the backrest of the seat, the headrest can be adjusted in a self-adaptive mode along with rotation of the backrest, trouble and labor are saved, and cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a seat and a vehicle. Background Art

[0002] With the deepening popularization of automobiles and the improvement of living standards, people have higher and higher requirements for automobile functions, usage scenarios and comfort. Among them, automobile seats, as an important component integrating functions, safety, comfort and beauty, have been given more attention. At present, automobile seats mainly include seat frames, backrests and headrests.

[0003] In the related art, when the user adjusts the pitch angle of the backrest, the rotation center of the backrest does not coincide with the rotation center of the human body, resulting in the headrest not being able to rest comfortably on the backrest after the backrest is adjusted backwards to a large angle. Therefore, the user needs to adjust the headrest downwards manually or electrically. The manual adjustment of the headrest is cumbersome and the user experience is poor. The electric adjustment of the headrest is costly. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, an embodiment of the utility model provides a seat, in which the headrest can be adaptively adjusted along with the rotation of the seat backrest during the process of the seat backrest being rotated and adjusted, which saves trouble and labor and has low cost.

[0006] An embodiment of the utility model further provides a vehicle.

[0007] The seat of an embodiment of the utility model includes: a seat frame, the seat frame includes a seat frame, a backrest and an angle adjustment device, the backrest is connected to the seat frame through the angle adjustment device, and the angle adjustment device is used to adjust the rotation angle of the backrest; a headrest adjustment mechanism, the headrest adjustment mechanism includes a headrest and a traction assembly, the headrest is installed above the backrest and is movable relative to the backrest along the extension direction of the backrest, one end of the traction assembly is connected to the angle adjustment device, and the other end of the traction assembly is connected to the headrest, when the rotation angle increases, the angle adjustment device can drive the traction assembly to move, so as to drive the headrest to move in a direction close to the backrest, and when the rotation angle decreases, the angle adjustment device can drive the traction assembly to reset, so as to drive the headrest to move in a direction away from the backrest.

[0008] According to the seat of the embodiment of the utility model, since the backrest is connected to the seat frame through the angle adjustment device, the angle adjustment device can rotate with the rotation of the backrest. When the rotation angle of the backrest increases, the angle adjustment device can drive the traction component to move, so as to drive the headrest to move in the direction close to the backrest, thereby ensuring that when the user lies at a large angle, the headrest can automatically move down to just below the user's head, and there is no need for a motor or the user to manually adjust the headrest, so as to facilitate the user's daily use and at a low cost. In addition, when the rotation angle of the backrest decreases, the angle adjustment device can drive the traction component to reset, so as to drive the headrest to move in the direction away from the backrest. Thus, it can be ensured that when the backrest is reset, the headrest can also automatically move up driven by the traction component. Therefore, in the process of adjusting the backrest forward and backward, the headrest of the seat of the embodiment of the utility model can be adaptively adjusted with the rotation of the backrest, which saves trouble and effort, and has a low cost.

[0009] In some embodiments, the headrest includes a headrest body and a bracket, the headrest body is connected to the bracket, a sleeve is provided on the backrest, the axial direction of the sleeve is consistent with the extension direction of the backrest, the bracket slides with the sleeve along the axial direction of the sleeve, and the other end of the traction assembly is connected to the bracket.

[0010] In some embodiments, the traction assembly includes a cable and a driving wheel, the angle adjustment device is drivingly connected to the driving wheel, one end of the cable is wound around the driving wheel, and the other end of the cable is connected to the bracket. When the rotation angle increases, the angle adjustment device can drive the driving wheel to reel in the cable so that the cable pulls the headrest to move toward the backrest.

[0011] In some embodiments, the angle adjustment device includes a synchronization shaft and two angle adjusters, the two angle adjusters are respectively arranged on both sides of the width direction of the backrest and connected to the seat frame, the two ends of the synchronization shaft are respectively connected to the two angle adjusters, and the driving wheel is fixedly sleeved on the synchronization shaft.

[0012] In some embodiments, the traction assembly further includes an elastic return member, one end of which is connected to the backrest, and the other end of which is connected to the bracket, and the elastic return member has an elastic force for driving the headrest to move in a direction away from the backrest.

[0013] In some embodiments, a hook is provided on the backrest, and the elastic return member is a tension spring, one end of the tension spring is hung on the bracket, and the other end of the tension spring is hung on the hook.

[0014] In some embodiments, there are at least two elastic return members, and the two elastic return members are arranged at intervals along the width direction of the backrest.

[0015] In some embodiments, the bracket includes a first vertical rod, a second vertical rod and a cross rod, the first vertical rod and the second vertical rod are arranged at intervals along the width direction of the backrest and are connected to the headrest body, the first vertical rod and the second vertical rod are respectively slidably matched with the corresponding sleeves, the cross rod extends along the width direction of the backrest and is connected to the first vertical rod and the second vertical rod, the traction assembly is connected to the cross rod, and the connection position of the traction assembly and the cross rod is located between the first vertical rod and the second vertical rod.

[0016] In some embodiments, a bushing is provided in the sleeve, the bracket is passed through the bushing, and the bracket slides with the sleeve along the axial direction of the sleeve; and / or the cross bar is located at one end of the sleeve away from the headrest.

[0017] A vehicle according to another embodiment of the present utility model comprises a seat as described in any one of the embodiments of the present utility model.

[0018] According to the vehicle of the embodiment of the utility model, since the backrest is connected to the seat frame through the angle adjustment device, the angle adjustment device can rotate with the rotation of the backrest. When the rotation angle of the backrest increases, the angle adjustment device can drive the traction assembly to move, so as to drive the headrest to move in the direction close to the backrest, thereby ensuring that when the user lies at a large angle, the headrest can automatically move down to just below the user's head, and there is no need for a motor or the user to manually adjust the headrest, so as to facilitate the user's daily use, and the cost is low. In addition, when the rotation angle of the backrest decreases, the angle adjustment device can drive the traction assembly to reset, so as to drive the headrest to move in the direction away from the backrest. Thus, it can be ensured that when the backrest is reset, the headrest can also automatically move up under the drive of the traction assembly. Therefore, in the process of adjusting the backrest forward and backward, the headrest of the vehicle of the embodiment of the utility model can be adjusted adaptively with the rotation of the backrest, which saves trouble and labor, and has a low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of a seat according to an embodiment of the present utility model.

[0020] Figure 2 It is a partial view of a seat according to an embodiment of the present utility model.

[0021] Figure 3 It is a front view of a seat according to an embodiment of the present utility model.

[0022] Reference numerals:

[0023] 1. Seat frame; 11. Backrest; 12. Angle adjustment device; 121. Angle adjuster; 122. Synchronous shaft; 13. Sleeve; 131. First sleeve; 132. Second sleeve; 14. Hook; 15. Backrest return spring;

[0024] 2. headrest adjustment mechanism; 21. headrest; 211. headrest body; 212. bracket; 2121. first vertical rod; 2122. second vertical rod; 2123. cross rod; 22. traction assembly; 221. cable; 222. driving wheel; 23. elastic reset member. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0026] Please refer to the following Figures 1 to 3 A seat and a vehicle according to an embodiment of the present invention are described.

[0027] like Figure 1 and Figure 2 As shown, the seat of the embodiment of the utility model comprises: a seat frame 1 and a headrest adjustment mechanism 2. The seat frame 1 comprises a seat frame (not shown), a backrest 11 and an angle adjustment device 12, and the headrest adjustment mechanism 2 comprises a headrest 21 and a traction assembly 22.

[0028] The backrest 11 is connected to the seat frame through an angle adjustment device 12, and the angle adjustment device 12 is used to adjust the rotation angle of the backrest 11. The headrest 21 is installed above the backrest 11 and extends along the extension direction of the backrest 11 (such as Figure 1 The traction assembly 22 is movable relative to the backrest 11 (in the vertical direction of the backrest 11), one end of the traction assembly 22 is connected to the angle adjustment device 12, and the other end of the traction assembly 22 is connected to the headrest 21. When the rotation angle increases, the angle adjustment device 12 can drive the traction assembly 22 to move, so as to drive the headrest 21 to move toward the direction close to the backrest 11. When the rotation angle decreases, the angle adjustment device 12 can drive the traction assembly 22 to reset, so as to drive the headrest 21 to move in the direction away from the backrest 11.

[0029] According to the seat of the embodiment of the utility model, since the backrest 11 is connected to the seat frame through the angle adjustment device 12, the angle adjustment device 12 can rotate with the rotation of the backrest 11. When the rotation angle of the backrest 11 increases, the angle adjustment device 12 can drive the traction assembly 22 to move, so as to drive the headrest 21 to move toward the direction close to the backrest 11, thereby ensuring that when the user lies at a large angle, the headrest 21 can automatically move down to just below the user's head, and there is no need for a motor or the user to manually adjust the headrest 21, so as to facilitate the user's daily use and have a low cost.

[0030] When the rotation angle of the backrest 11 decreases, the angle adjustment device 12 can drive the traction assembly 22 to reset, so as to drive the headrest 21 to move in the direction away from the backrest 11. This ensures that when the backrest 11 is reset, the headrest 21 can also automatically move up driven by the traction assembly 22. Therefore, in the process of adjusting the backrest 11 forward and backward rotation of the seat of the embodiment of the utility model, the headrest 21 can be adjusted adaptively with the rotation of the backrest 11, which saves trouble and labor, and has low cost.

[0031] It is understandable that when the user adjusts the rotation angle of the backrest 11, the angle adjustment device 12 will rotate synchronously, because the traction assembly 22 is in transmission connection with the angle adjustment device 12. Therefore, when the backrest 11 rotates, the traction assembly 22 can be driven to move synchronously to adjust the upper and lower positions of the headrest 21.

[0032] It should be noted that the angle adjustment device 12 may be a manual angle adjustment device 12 or an automatic angle adjustment device 12, and the present application does not limit this.

[0033] Optionally, the headrest 21 includes a headrest body 211 and a bracket 212, the headrest body 211 is connected to the bracket 212, a sleeve 13 is provided on the backrest 11, the axial direction of the sleeve 13 is consistent with the extension direction of the backrest 11, the bracket 212 is slidably matched with the sleeve 13 along the axial direction of the sleeve 13, and the other end of the traction assembly 22 is connected to the bracket 212. Specifically, the sleeve 13 is arranged adjacent to the upper end of the backrest 11, and the bracket 212 can be inserted into the sleeve 13 from top to bottom.

[0034] It is understandable that the sleeve 13 can guide the up and down movement of the headrest 21. The sleeve 13 can be fixed to the backrest 11 by fasteners or by welding. Since the traction assembly 22 is connected to the bracket 212, the traction assembly 22 can be conveniently hidden in the space between the backrest 11 and the backrest cushion.

[0035] In one example, the bracket 212 includes a first vertical rod 2121, a second vertical rod 2122 and a cross rod 2123, the first vertical rod 2121 and the second vertical rod 2122 are arranged at intervals along the width direction of the backrest 11 and connected to the headrest body 211, the first vertical rod 2121 and the second vertical rod 2122 are respectively slidably matched with the corresponding sleeves 13, and the cross rod 2123 extends along the width direction of the backrest 11 and is connected to the first vertical rod 2121 and the second vertical rod 2122. Specifically, the sleeve 13 includes a first sleeve 131 and a second sleeve 132.

[0036] The first vertical rod 2121 is slidably inserted in the first sleeve 131, and the second vertical rod 2122 is slidably inserted in the second sleeve 132. The seat of the embodiment of the utility model can avoid the problem of the headrest 21 shaking left and right relative to the backrest 11 by setting the bracket 212 as the above structure, and can also improve the firmness of the connection between the bracket 212 and the backrest 11.

[0037] like Figure 1 As shown, the traction assembly 22 is connected to the cross bar 2123, and the connection position of the traction assembly 22 and the cross bar 2123 is located between the first vertical bar 2121 and the second vertical bar 2122. It can be understood that the traction assembly 22 drives the headrest 21 to rise and fall as a whole by traction of the cross bar 2123. Since the connection position of the traction assembly 22 and the cross bar 2123 is located between the first vertical bar 2121 and the second vertical bar 2122, the forces exerted on the first vertical bar 2121 and the second vertical bar 2122 during movement can be made substantially equal, so as to avoid the problems of jamming and abnormal noise caused by uneven force when the first vertical bar 2121 and the second vertical bar 2122 slide.

[0038] Optionally, a bushing (not shown) is provided in the sleeve 13, the bracket 212 is inserted into the bushing, and the bracket 212 is slidably matched with the sleeve 13 along the axial direction of the sleeve 13. In the example of the present application, bushings are provided in both the first sleeve 131 and the second sleeve 132, and the first vertical rod 2121 and the second vertical rod 2122 are connected to the corresponding sleeve 13 through the bushings. The bushing can be a linear bearing, thereby improving the smoothness of the movement of the first vertical rod 2121 and the second vertical rod 2122, and helping to reduce the noise when the headrest 21 moves, thereby improving the user's experience.

[0039] like Figure 1 As shown, the cross bar 2123 is located at the end of the sleeve 13 away from the headrest 21. It can be understood that the upper end of the first vertical bar 2121 (the second vertical bar 2122) is connected to the headrest body 211, and the lower end of the first vertical bar 2121 (the second vertical bar 2122) is connected to the cross bar 2123. Therefore, the cross bar 2123 can limit the up and down movement of the first vertical bar 2121 (the second vertical bar 2122) to avoid the problem of the bracket 212 of the headrest 21 being separated from the backrest 11 due to user misoperation.

[0040] The traction assembly 22 can be a cable transmission mechanism or a gear rack transmission structure.

[0041] In one example, if Figure 1 and Figure 3As shown, the traction assembly 22 includes a cable 221 and a driving wheel 222. The angle adjustment device 12 is transmission-connected to the driving wheel 222. One end of the cable 221 is wound around the driving wheel 222, and the other end of the cable 221 is connected to the bracket 212. When the rotation angle increases, the angle adjustment device 12 can drive the driving wheel 222 to reel in the cable 221, so that the cable 221 pulls the headrest 21 to move toward the direction close to the backrest 11.

[0042] It is understandable that when the angle adjustment device 12 is working, the angle adjustment device 12 can drive the backrest 11 to rotate on the one hand, and on the other hand, the angle adjustment device 12 can synchronously drive the driving wheel 222 to rotate, and the rotation of the driving wheel 222 can drive the stretching, winding and releasing, thereby controlling the lifting and lowering of the headrest 21. The seat of the embodiment of the utility model can ensure the linkage between the headrest 21 and the angle adjustment device 12, reduce the production cost of the seat, and facilitate assembly by setting the traction component 22 as a transmission structure of the cable 221 and the driving wheel 222.

[0043] Alternatively, if Figure 1 and Figure 3 As shown, the angle adjustment device 12 includes a synchronous shaft 122 and two angle adjusters 121. The two angle adjusters 121 are respectively arranged on both sides of the width direction of the backrest 11 and connected to the seat frame. The angle adjusters 121 can be manual angle adjusters 121 or electric angle adjusters 121. The two ends of the synchronous shaft 122 are respectively connected to the two angle adjusters 121, and the driving wheel 222 is fixedly sleeved on the synchronous shaft 122. In other words, the two angle adjusters 121 are respectively arranged on the left and right sides of the backrest 11, the fixed bracket 212 (not shown) of the angle adjuster 121 is installed at the rear end of the seat frame, and the movable bracket 212 of the angle adjuster 121 is installed at the lower end of the backrest 11. The movable bracket 212 of the angle adjuster 121 can rotate relative to the fixed bracket 212, thereby adjusting the angle of the backrest 11.

[0044] like Figure 1 and Figure 3 As shown, the left and right ends of the synchronization shaft 122 are respectively connected to the two angle adjusters 121, and the synchronization shaft 122 can ensure the synchronization of the two angle adjusters 121 when rotating. Since the driving wheel 222 is fixedly sleeved on the synchronization shaft 122, the driving wheel 222 can rotate with the rotation of the synchronization shaft 122. In other words, the angle adjuster 121 can drive the synchronization shaft 122 to rotate, and the synchronization shaft 122 can drive the driving wheel 222 to rotate. Since one end of the cable 221 is wound around the driving wheel 222, the cable 221 can be wound and released, thereby adjusting the position of the headrest 21 along the extension direction of the backrest 11.

[0045] like Figure 1 and Figure 2As shown, the traction assembly 22 also includes an elastic reset member 23, one end of which is connected to the backrest 11, and the other end of which is connected to the crossbar 2123 of the bracket 212. The elastic reset member 23 has an elastic force that drives the headrest 21 to move in a direction away from the backrest 11. It can be understood that when the driving wheel 222 reels the cable 221, the elastic reset member 23 accumulates elastic potential energy. When the driving wheel 222 releases the cable 221, the elastic potential energy of the elastic reset member 23 is released, and thus, under the elastic action of the elastic reset member 23, the bracket 212 can move in a direction away from the backrest 11 (from bottom to top). In this way, the reset structure of the headrest 21 can be simple, and the linkage effect is better.

[0046] Alternatively, if Figure 2 As shown, a hook 14 is provided on the backrest 11, and the elastic reset member 23 is a tension spring, one end of the tension spring (the lower end of the tension spring) is connected to the bracket 212, and the other end of the tension spring (the upper end of the tension spring) is connected to the hook 14. The hook 14 can be fixed to the backrest 11 by a screw or welded to the backrest 11. Alternatively, the hook 14 is fixed to the backrest 11 by a buckle.

[0047] When the driving wheel 222 winds up the cable 221, the tension spring is stretched and has elastic potential energy. When the driving wheel 222 releases the cable 221, the elastic potential energy of the tension spring is released, so that the bracket 212 can move in a direction away from the backrest 11 (from bottom to top) under the elastic action of the tension spring.

[0048] Alternatively, if Figures 1 to 3 As shown, the elastic reset member 23 may be one or more. In the example of the present application, there are two elastic reset members 23, and the two elastic reset members 23 are arranged at intervals along the width direction of the backrest 11. In this way, the efficiency of the headrest 21 when resetting can be ensured, and the stability of the first vertical rod 2121 and the second vertical rod 2122 when resetting and moving can be ensured, so as to avoid the problems of jamming and abnormal noise caused by uneven force when the first vertical rod 2121 and the second vertical rod 2122 slide.

[0049] In the example of this application, Figure 1 and Figure 3 As shown, the seat also includes a backrest return spring 15, which is connected to the seat frame and the backrest 11. The backrest return spring 15 has an elastic force that drives the backrest 11 to rotate forward. Therefore, after the recliner 121 is unlocked, the backrest return spring 15 can drive the backrest 11 to automatically return to its original position.

[0050] A vehicle according to another embodiment of the present invention comprises the seat according to the embodiment of the present invention.

[0051] In the vehicle of the embodiment of the utility model, since the backrest 11 is connected to the seat frame through the angle adjustment device 12, the angle adjustment device 12 can rotate with the rotation of the backrest 11. When the rotation angle of the backrest 11 increases, the angle adjustment device 12 can drive the traction assembly 22 to move, so as to drive the headrest 21 to move in the direction close to the backrest 11, thereby ensuring that when the user lies at a large angle, the headrest 21 can automatically move down to the right below the user's head, and there is no need for a motor or the user to manually adjust the headrest 21, so as to facilitate the user's daily use, and the cost is low. In addition, when the rotation angle of the backrest 11 decreases, the angle adjustment device 12 can drive the traction assembly 22 to reset, so as to drive the headrest 21 to move in the direction away from the backrest 11. Thus, it can be ensured that when the backrest 11 is reset, the headrest 21 can also automatically move up under the drive of the traction assembly 22. Therefore, in the vehicle of the embodiment of the utility model, during the process of adjusting the backrest 11 forward and backward, the headrest 21 can be adjusted adaptively with the rotation of the backrest 11, which saves trouble and labor, and has a low cost.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0054] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0056] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0057] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are illustrative and cannot be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A seat, characterized in that: include: A seat frame, the seat frame comprising a seat frame, a backrest and an angle adjustment device, the backrest is connected to the seat frame through the angle adjustment device, and the angle adjustment device is used to adjust the rotation angle of the backrest; A headrest adjustment mechanism, the headrest adjustment mechanism comprises a headrest and a traction assembly, the headrest is installed above the backrest and is movable relative to the backrest along the extension direction of the backrest, one end of the traction assembly is connected to the angle adjustment device, and the other end of the traction assembly is connected to the headrest, When the rotation angle increases, the angle adjustment device can drive the traction assembly to move, so as to drive the headrest to move toward the direction close to the backrest. When the rotation angle decreases, the angle adjustment device can drive the traction assembly to reset, so as to drive the headrest to move in the direction away from the backrest.

2. The seat according to claim 1, characterized in that: The headrest includes a headrest body and a bracket, the headrest body is connected to the bracket, a sleeve is provided on the backrest, the axial direction of the sleeve is consistent with the extension direction of the backrest, the bracket is slidably matched with the sleeve along the axial direction of the sleeve, and the other end of the traction assembly is connected to the bracket.

3. The seat according to claim 2, characterized in that: The traction assembly includes a cable and a driving wheel, the angle adjustment device is drivingly connected to the driving wheel, one end of the cable is wound around the driving wheel, and the other end of the cable is connected to the bracket. When the rotation angle increases, the angle adjustment device can drive the driving wheel to reel in the cable so that the cable pulls the headrest to move toward the direction close to the backrest.

4. The seat according to claim 3, characterized in that: The angle adjustment device includes a synchronous shaft and two angle adjusters. The two angle adjusters are respectively arranged on both sides of the width direction of the backrest and connected to the seat frame. The two ends of the synchronous shaft are respectively connected to the two angle adjusters. The driving wheel is fixedly sleeved on the synchronous shaft.

5. The seat according to claim 3, characterized in that: The traction assembly also includes an elastic return member, one end of which is connected to the backrest, and the other end of which is connected to the bracket. The elastic return member has an elastic force that drives the headrest to move in a direction away from the backrest.

6. The seat according to claim 5, characterized in that: The backrest is provided with a hook, the elastic reset member is a tension spring, one end of the tension spring is hooked to the bracket, and the other end of the tension spring is hooked to the hook.

7. The seat according to claim 5, characterized in that: There are at least two elastic return members, and the two elastic return members are arranged at intervals along the width direction of the backrest.

8. The seat according to claim 2, characterized in that: The bracket includes a first vertical rod, a second vertical rod and a cross rod, the first vertical rod and the second vertical rod are arranged at intervals along the width direction of the backrest and are connected to the headrest body, the first vertical rod and the second vertical rod are respectively slidably matched with the corresponding sleeves, the cross rod extends along the width direction of the backrest and is connected to the first vertical rod and the second vertical rod, the traction assembly is connected to the cross rod, and the connection position of the traction assembly and the cross rod is located between the first vertical rod and the second vertical rod.

9. The seat according to claim 8, characterized in that A bushing is provided in the sleeve, the bracket is passed through the bushing, and the bracket is slidably matched with the sleeve along the axial direction of the sleeve; And / or, the cross bar is located at an end of the sleeve facing away from the headrest.

10. A vehicle, characterized in that: A seat comprising any one of claims 1-9.

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