Headrest adjustment, seats and vehicles

Abstract

The present invention provides a headrest adjustment device, a seat and a vehicle, wherein the headrest adjustment device comprises: a base; a mounting rod, the mounting rod is rotatably mounted on the base and used to mount the headrest, and the mounting rod is provided with a locking member, the locking member is mounted on the base and used to lock with the mounting rod; an unlocking assembly, the unlocking assembly is mounted on the base and used to drive the locking member to store energy to release the locking state between the locking member and the mounting rod. Thus, by providing a locking portion on the mounting rod, the locking portion is locked with the locking member to limit the rotation of the mounting rod, thereby fixing the headrest, and by linking the unlocking assembly with the locking member, the unlocking assembly can release the locking state between the locking member and the mounting rod, so that the mounting rod can rotate, simplifying the unlocking process of the headrest and improving the user experience. At the same time, the structure of the present application is simple, easy to assemble, and can reduce the production cost of the headrest adjustment device.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a headrest adjusting device, a seat and a vehicle. Background Art

[0002] In the related art, the structure of the headrest adjustment mechanism is complex, which leads to complex assembly process, increased assembly hours, and increased production costs. At the same time, the process of transmitting the unlocking force is complex, which easily makes the headrest adjustment mechanism difficult to operate, reducing the user experience. Summary of the invention

[0003] In view of this, the present invention aims to provide a headrest adjusting device to simplify the structure of the headrest adjusting device and facilitate operation.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] A headrest adjustment device comprises: a base; a mounting rod, which is rotatably mounted on the base and used to mount the headrest, and the mounting rod is provided with a locking member, the locking member is mounted on the base and used to lock with the mounting rod; an unlocking assembly, the unlocking assembly is mounted on the base and used to drive the locking member to store energy so as to release the locking state of the locking member and the mounting rod.

[0006] According to some embodiments of the present invention, the mounting rod includes: a mounting section, which is used to mount the headrest; a connecting section, which is connected to the mounting section, and the locking portion is formed on the connecting section, and the connecting section is provided with a first connecting portion, which is rotatably connected to the base.

[0007] According to some embodiments of the present invention, the headrest adjustment device further includes a rotating shaft, the rotating shaft is mounted on the base, the first connecting portion is connected to the rotating shaft, and the mounting rod is suitable for rotating around the central axis of the rotating shaft.

[0008] According to some embodiments of the present invention, the headrest adjustment device further comprises an elastic driving member connected between the base and the mounting rod and adapted to drive the mounting rod in an unlocked state to rotate relative to the base.

[0009] According to some embodiments of the present invention, the base is provided with a limiting portion, and the limiting portion can cooperate with the connecting section to limit the rotation of the mounting rod relative to the base.

[0010] According to some embodiments of the present invention, the elastic driving member is suitable for driving the mounting rod to rotate around the rotating shaft by an angle of α in an unlocked state, and the relationship is satisfied: 0°<α≤105°.

[0011] According to some embodiments of the present invention, the locking member includes: a main body section, which is fixedly connected to the base; a locking section, one end of which is connected to the main body section, and the other end of which is passed through the base; wherein the locking section can be twisted relative to the main body section and store energy when in an unlocked state, and the locking section can be locked with the locking part when in a locked state.

[0012] According to some embodiments of the present invention, the unlocking assembly includes: an unlocking block, which is rotatably mounted on the base and is provided with a driving groove, and the locking section is passed through the driving groove; a driving member, which is connected to the unlocking block and is used to drive the unlocking block to rotate, so as to drive the locking section to move through the unlocking block to release the locked state of the locking section and the locking portion.

[0013] According to some embodiments of the present invention, there are two mounting rods, which are spaced apart along the first direction; the headrest adjustment device also includes a synchronization rod, which is connected between the two mounting rods and is suitable for driving the two mounting rods to move synchronously.

[0014] According to some embodiments of the present invention, there is at least one locking segment, and each of the locking segments can be locked and matched with one of the two mounting rods.

[0015] Compared with the prior art, the headrest adjustment device of the present invention has the following advantages:

[0016] By arranging a locking portion on the mounting rod, the locking portion and the locking piece are locked and matched to limit the rotation of the mounting rod, thereby fixing the headrest; by cooperating the unlocking component with the locking piece, the unlocking component can release the locking match state between the locking piece and the mounting rod, so that the mounting rod can be rotated, thereby simplifying the unlocking process of the headrest and improving the user experience. At the same time, the structure of the present application is simple, easy to assemble, and can reduce the production cost of the headrest adjustment device.

[0017] Another object of the present invention is to provide a seat.

[0018] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0019] A seat comprises: a headrest; and a headrest adjusting device, wherein the headrest adjusting device is the headrest adjusting device according to the above claim, and the headrest is mounted on the mounting rod.

[0020] The advantages of the seat and the headrest adjustment device described above over the prior art are the same and will not be described in detail here.

[0021] Another object of the present invention is to provide a vehicle.

[0022] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0023] A vehicle comprises the above-mentioned seat.

[0024] The advantages of the vehicle and the headrest adjustment device described above over the prior art are the same and will not be described in detail herein. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 An exploded view of a headrest adjustment device according to an embodiment of the present invention;

[0027] Figure 2 It is a structural schematic diagram of a headrest adjustment device according to an embodiment of the present invention;

[0028] Figure 3 It is a schematic diagram of the headrest adjustment device according to the embodiment of the present invention in a locked state;

[0029] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0030] Figure 5 It is a schematic diagram of the installation rod and the locking member according to the embodiment of the present invention being unlocked;

[0031] Figure 6 for Figure 5 The enlarged view of point B in the middle;

[0032] Figure 7 It is a schematic diagram of the installation rod according to the embodiment of the present invention when it rotates after being unlocked;

[0033] Figure 8 for Figure 7 Enlarged view of point C in the middle;

[0034] Fig. 9 It is a partial cross-sectional view of the mounting rod and the locking member according to the embodiment of the present invention when they are matched.

[0035] Description of reference numerals:

[0036] The headrest adjustment device 100, the base 10, the limiting portion 11, the fixing hole 12, the stop protrusion 121, the matching groove 14, the first bushing 15, the mounting seat 16, the limiting protrusion 17,

[0037] The mounting rod 20, the mounting section 21, the connecting section 22, the first connecting portion 221, the locking portion 222, the locking member 30, the main section 31, the straight section 311, the extending section 312, the stop fitting portion 3111, the locking section 32, the extending portion 321,

[0038] Unlocking assembly 40, unlocking block 41, driving slide 411, second bushing 412, driving member 42,

[0039] Rotating shaft 50, elastic driving member 60,

[0040] Synchronous rod 70 and rivet 80. DETAILED DESCRIPTION

[0041] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0042] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0043] Combination Figure 1 and Figure 2 The headrest adjustment device 100 according to the present invention comprises: a base 10, a mounting rod 20, a locking member 30 and an unlocking assembly 40, wherein the mounting rod 20 is rotatably mounted on the base 10 and is used to mount the headrest, and the mounting rod 20 is provided with a locking portion 222, the locking member 30 is mounted on the base 10 and is used to lock with the mounting rod 20, and the unlocking assembly 40 is mounted on the base 10 and is used to drive the locking member 30 to store energy so as to release the locking state of the locking member 30 and the mounting rod 20.

[0044] Specifically, combined Figure 3 , Figure 5 and Figure 7 The mounting rod 20 is rotatably connected to the base 10, and the headrest is rotatably connected to the base 10 through the mounting rod 20. The locking portion 222 and the locking member 30 are selectively locked and matched. When the headrest does not need to be rotated, the locking portion 222 and the locking member 30 are locked and matched to limit the rotation of the mounting rod 20 relative to the base 10, thereby limiting the rotation of the headrest.

[0045] Further references Figure 1 The unlocking assembly 40 is transmission-connected with the locking member 30. When the headrest needs to be driven to rotate, the unlocking assembly 40 is driven to drive the locking member 30 to store energy, so as to release the locking cooperation state between the locking member 30 and the mounting rod 20, so that the mounting rod 20 can rotate relative to the base 10, thereby facilitating driving the headrest to rotate.

[0046] By driving the headrest to rotate, it can avoid other structures in the car, thereby increasing the space utilization rate in the car, and the headrest adjustment device 100 can be set on the rear seat, and by driving the headrest of the rear seat to rotate, the headrest can avoid the rear view field of vision, thereby increasing the rear view field of vision.

[0047] Therefore, the locking state of the mounting rod 20 and the locking member 30 can be released by driving the unlocking assembly 40, thereby simplifying the unlocking process of the headrest, thereby simplifying the force transmission process when the headrest is unlocked, and by driving the headrest to rotate, the headrest can be made to avoid other structures in the vehicle, thereby increasing the space utilization rate in the vehicle, and the headrest adjustment device 100 can be arranged on the rear seat, and by driving the headrest of the rear seat to rotate, the headrest can avoid the rear view field of vision, thereby increasing the rear view field of vision and improving the user's experience. At the same time, the structure of the present application is simple, easy to assemble, and can reduce the production cost of the headrest adjustment device 100.

[0048] According to the headrest adjustment device 100 of the present invention, a locking portion 222 is provided on the mounting rod 20 so that the locking portion 222 is locked with the locking member 30 to limit the rotation of the mounting rod 20, thereby fixing the headrest. By cooperating the unlocking assembly 40 with the locking member 30, the unlocking assembly 40 can release the locking cooperation state between the locking member 30 and the mounting rod 20, so that the mounting rod 20 can rotate, simplifying the unlocking process of the headrest and improving the user's experience. At the same time, the structure of the present application is simple, easy to assemble, and can reduce the production cost of the headrest adjustment device 100.

[0049] like Figure 1 As shown, in some embodiments of the present invention, the mounting rod 20 includes: a mounting section 21 and a connecting section 22, the mounting section 21 is used to install the headrest, the connecting section 22 is connected to the mounting section 21, and a locking portion 222 is formed on the connecting section 22, the connecting section 22 is provided with a first connecting portion 221, and the first connecting portion 221 is rotatably connected to the base 10.

[0050] Specifically, combined Figure 1 and Fig. 9 The headrest can be plugged into and matched with the mounting section 21 to install the headrest on the mounting rod 20. The connecting section 22 is connected to one end of the mounting section 21 away from the headrest, and the connecting section 22 can be constructed in an L shape. The first connecting portion 221 is arranged at the end of the connecting section 22 away from the mounting section 21. The mounting rod 20 is rotatably connected to the base 10 through the first connecting portion 221. The locking portion 222 can be configured as a stop groove, and the stop groove is formed on a side surface of the connecting section 22 opposite to the locking member 30. The stop groove is recessed in a direction away from the locking member 30. The locking member 30 can be snapped into the stop groove to lock with the mounting rod 20.

[0051] Further integration Figures 3 to 6When the headrest needs to be driven to rotate, the unlocking assembly 40 is driven to drive the locking member 30 to disengage from the stop groove, thereby releasing the locking cooperation state between the locking member 30 and the mounting rod 20, so that the mounting rod 20 can rotate relative to the base 10.

[0052] Among them, the locking member 30 can be configured as an insert-molded steel wire. When the locking cooperation state between the locking member 30 and the mounting rod 20 needs to be released, the unlocking component 40 drives the steel wire to twist it to store energy, and the steel wire escapes from the stop groove to release the locking state between the steel wire and the mounting rod 20.

[0053] like Figure 1 As shown, in some embodiments of the present invention, the mounting rod 20 can be configured as an insert-molded insertion rod, the mounting section 21 can extend in an arc shape near the connecting section 22 to improve the structural strength of the mounting rod 20, and the mounting section 21 can extend in a straight line away from the connecting section 22 to facilitate the installation of the headrest. Of course, it can be understood that the mounting rod 20 can also be constructed in other shapes. The above structure is only an embodiment of the present application and cannot be understood as a limitation of the present application. The specific structure of the mounting rod 20 is not limited here.

[0054] Combination Figure 1 and Figure 3 In some embodiments of the present invention, the headrest adjustment device 100 further includes a rotating shaft 50 , which is mounted on the base 10 , the first connecting portion 221 is connected to the rotating shaft 50 , and the mounting rod 20 is adapted to rotate around the central axis of the rotating shaft 50 .

[0055] Specifically, both ends of the rotating shaft 50 are passed through the base 10, and the rotating shaft 50 is rotatably connected to the base 10. The first connecting portion 221 is constructed as a hole structure, and a first bushing 15 is arranged in the hole structure. The mounting rod 20 is rotatably connected to the rotating shaft 50 through the hole structure and the first bushing 15, and the mounting rod 20 can rotate relative to the base 10 around the central axis of the rotating shaft 50.

[0056] Furthermore, both ends of the rotating shaft 50 are provided with a protrusion structure, and the radial dimension of the protrusion structure is larger than the radial dimension of the first connecting portion 221, so that the protrusion structure can be engaged with the wall surface of the base 10 to prevent the rotating shaft 50 from escaping from the base 10, thereby preventing the mounting rod 20 from being disengaged from the base 10, thereby ensuring the assembly reliability of the mounting rod 20.

[0057] Combination Figures 1 to 3 In some embodiments of the present invention, the headrest adjustment device 100 further includes an elastic driving member 60, which is connected between the base 10 and the mounting rod 20 and is suitable for driving the mounting rod 20 in an unlocked state to rotate relative to the base 10.

[0058] Specifically, the elastic driving member 60 can be configured as a torsion spring, which is sleeved on the rotating shaft 50, and one end of the torsion spring is abutted against the base 10, and the other end of the torsion spring is connected to the mounting rod 20. When the headrest is in a locked state, the mounting rod 20 and the base 10 compress the torsion spring, so that the torsion spring accumulates energy.

[0059] Further integration Figure 7 When the mounting rod 20 and the locking member 30 are unlocked, the torsion spring releases energy, and the torsion spring drives the mounting rod 20 to rotate through one end connected to the mounting rod 20, and the mounting rod 20 drives the headrest to rotate, thereby realizing the unlocking and automatic adjustment of the headrest.

[0060] Combination Figure 1 and Figure 7 In some embodiments of the present invention, the base 10 is provided with a limiting portion 11 , and the limiting portion 11 can cooperate with the connecting section 22 to limit the installation rod 20 from rotating relative to the base 10 .

[0061] Specifically, the limiting portion 11 is arranged at one end of the base 10 close to the mounting rod 20 in the second direction, that is, the upper end of the base 10, and the limiting portion 11 extends from the base 10 to the mounting rod 20 in the horizontal direction. The limiting portion 11 can be engaged with the connecting section 22 to limit the rotation angle of the mounting rod 20 and prevent the mounting rod 20 from rotating excessively, which makes it difficult to reset the headrest.

[0062] It should be noted that the "second direction" refers to the height direction of the base, which can also be understood as the Z direction of the vehicle. The specific direction indication can be referred to as shown in the accompanying drawings.

[0063] In some embodiments of the present invention, the elastic driving member 60 is adapted to drive the mounting rod 20 to rotate around the rotating shaft 50 at an angle α in the unlocked state, and the relationship is satisfied: 0°<α≤105°.

[0064] Specifically, when the headrest adjustment device 100 is in the unlocked state, the elastic driving member 60 releases energy to drive the mounting rod 20 to rotate relative to the base 10, and its rotation angle α satisfies 0°<α≤105°, wherein α>0° ensures that the headrest can rotate. When the rotation angle α reaches 105°, the limit portion 11 and the connecting section 22 stop and cooperate to limit the mounting rod 20 from continuing to rotate. Moreover, α≤105° can prevent the headrest from rotating excessively and making it inconvenient to reset, thereby improving the user experience.

[0065] It should be noted that the rotation angle α of the mounting rod 20 refers to the angle at which the mounting rod 20 rotates when in the unlocked state relative to the locked state. Of course, it can be understood that the rotation angle of the mounting rod 20 can be limited by the setting position of the limit portion 11. The specific angle setting can be determined by the manufacturer according to user needs and is not specifically limited here.

[0066] like Figure 1 As shown, in some embodiments of the present invention, the locking member 30 includes: a main body section 31 and a locking section 32, the main body section 31 is fixedly connected to the base 10, one end of the locking section 32 is connected to the main body section 31, and the other end of the locking section 32 is passed through the base 10, wherein the locking section 32 can be twisted relative to the main body section 31 and store energy when in an unlocked state, and the locking section 32 can be locked with the locking portion 222 when in a locked state.

[0067] Specifically, combined Figure 1 , Figure 3 and Figure 5 A matching groove 14 is provided on the base 10, and the locking section 32 can be inserted into the matching groove 14, and an extension portion 321 is provided at the end of the locking section 32 away from the main section 31, and the extension portion 321 is arranged at an angle with the locking section 32, and the extension portion 321 can be stopped and matched with the wall surface of the base 10 to prevent the locking member 30 from escaping from the matching groove 14, thereby ensuring the matching reliability of the locking member 30 and the base 10, and when the headrest is in a locked state, the locking section 32 is locked and matched with the locking portion 222 to limit the rotation of the mounting rod 20 and the headrest.

[0068] When the headrest needs to be unlocked, the unlocking assembly 40 drives the locking segment 32 to twist so that the locking segment 32 stores energy. At the same time, the unlocking assembly 40 can drive the locking segment 32 to slide in the matching groove 14, thereby releasing the locking state between the locking member 30 and the mounting rod 20.

[0069] Furthermore, the main body section 31 includes a straight section 311 and an extension section 312, the extension section 312 is connected to the locking section 32, and the extension section 312 and the locking section 32 are arranged at an angle, and the angle between the extension section 312 and the locking section 32 is preferably 90°, the straight section 311 is connected to the end of the extension section 312 away from the locking section 32, and a mounting groove structure is formed on the side surface of the base 10 opposite to the straight section 311, and the mounting groove structure is recessed from the side surface of the base 10 opposite to the main body section 31 to the side surface away from the main body section 31, and the straight section 311 is snap-fitted with the mounting groove structure, so that the base 10 can fix the straight section 311.

[0070] In addition, combined Figure 1 and Figure 2A fixing hole 12 is formed on the base 10, and the fixing hole 12 is arranged opposite to the middle position of the straight section 311. A stop protrusion 121 is formed on the side of the fixing hole 12 close to the headrest, and a stop fitting portion 3111 is formed at the middle position of the straight section 311. The stop fitting portion 3111 is arranged in the fixing hole 12, and the stop protrusion 121 can press the stop fitting portion 3111 to further fix the straight section 311, prevent the unlocking component 40 from driving the straight section 311 to move relative to the base 10 when the locking section 32 is driven to twist, thereby ensuring the connection reliability between the locking member 30 and the base 10.

[0071] Combination Figure 1 , Figure 2 and Figure 4 In some embodiments of the present invention, the unlocking assembly 40 includes: an unlocking block 41 and a driving member 42. The unlocking block 41 is rotatably mounted on the base 10, and the unlocking block 41 is provided with a driving slide groove 411. The locking segment 32 is penetrated through the driving slide groove 411. The driving member 42 is connected to the unlocking block 41 and is used to drive the unlocking block 41 to rotate, so as to drive the locking segment 32 to move through the unlocking block 41 to release the locked state of the locking segment 32 and the locking portion 222.

[0072] Specifically, the headrest adjustment device 100 includes a rivet 80, one end of which is fixedly connected to the base 10, the end of the unlocking block 41 is provided with a through hole structure, and a second bushing 412 is provided in the structure, and the end of the rivet 80 away from the base 10 is connected to the unlocking block 41 through the second bushing 412, and the unlocking block 41 can rotate relatively around the central axis of the rivet 80.

[0073] Furthermore, a through-hole structure is provided at the end of the unlocking block 41 away from the through-hole structure, and the driving member 42 can be passed through the through-hole structure and connected to the unlocking block 41, and an anti-slip structure is provided at the end of the driving member 42 passing through the through-hole structure. The anti-slip structure can be engaged with the side wall surface of the unlocking block 41 to prevent the driving member 42 from being disengaged from the unlocking block 41, thereby ensuring the reliability of the engagement between the driving member 42 and the unlocking block 41.

[0074] In addition, if Figure 3 As shown, the end of the base 10 away from the rotating shaft 50 in the second direction is provided with a mounting seat 16, and the end of the driving member 42 away from the end connected to the unlocking block 41 is passed through the mounting seat 16, and the driving member 42 can move along the second direction on the mounting seat 16. By moving the driving member 42 along the second direction, the driving member 42 drives the unlocking block 41 to rotate around the rivet 80. The driving member 42 can be configured as a cable.

[0075] Furthermore, a driving slot 411 is provided on one side of the unlocking block 41 in the second direction, the locking section 32 is inserted into the driving slot 411, and when the headrest is in a locked state, the locking portion 222 is arranged opposite to the driving slot 411, and at least a portion of the matching slot 14 is arranged opposite to the locking portion 222, and the driving slot 411 and the matching slot 14 both extend in an arc shape, and the angles of the arc extension of the driving slot 411 and the matching slot 14 are different.

[0076] Combination Figures 3 to 8 When the locking state of the headrest needs to be released, the driving member 42 moves along the second direction, the driving member 42 drives the unlocking block 41 to rotate around the rivet 80, the locking segment 32 slides in the driving slide groove 411, and the groove wall of the driving slide groove 411 presses the locking segment 32 to slide in the matching groove 14, and at the same time the locking segment 32 is twisted, so that the locking segment 32 is disengaged from the locking portion 222, so as to release the locking state of the mounting rod 20 and the locking member 30, and the elastic driving member 60 drives the mounting rod 20 to rotate around the central axis of the rotating shaft 50, so as to realize the automatic rotation of the headrest after unlocking, which is convenient for the user to operate.

[0077] Further integration Figure 7 and Figure 8 When the driving member 42 is released, the energy generated by the twisting of the locking segment 32 can drive the unlocking block 41 and the driving member 42 to reset together. When the headrest needs to be locked, the headrest is manually driven to rotate so that it drives the mounting rod 20 to rotate (not shown), and the connecting section 22 presses against the locking segment 32 to twist it again. The locking portion 222 locks with the locking segment 32 to reset the headrest and lock it again.

[0078] like Figure 6 As shown, in some embodiments of the present invention, a limiting protrusion 17 is further provided on the base 10, and the limiting protrusion 17 can be arranged opposite to the unlocking block 41, and the limiting protrusion 17 can be engaged with a stopper on one side end surface of the unlocking block 41 to prevent the unlocking block 41 from rotating at too large an angle and causing the locking section 32 to escape from the self-driving slide groove 411.

[0079] Combination Figure 1 and Figure 3 In some embodiments of the present invention, there are two mounting rods 20, and the two mounting rods 20 are arranged at intervals along the first direction.

[0080] Specifically, the two mounting rods 20 are arranged at intervals along the first direction, and the headrest is fixedly connected to the two mounting rods 20 to improve the assembly stability of the headrest and prevent the headrest from rotating around the axial direction of the mounting rods 20 .

[0081] It should be noted that the “first direction” is perpendicular to the second direction, and can also be understood as the width direction of the base 20 or the Y direction of the vehicle. The specific direction diagram can be referred to as shown in the accompanying drawings.

[0082] Furthermore, the headrest adjustment device 100 further includes a synchronization rod 70 , which is arranged parallel to the central axis of the rotating shaft 50 , and is connected between the two mounting rods 20 , and is suitable for driving the two mounting rods 20 to move synchronously.

[0083] Specifically, the synchronization rod 70 is passed through the two connecting sections 22, and a fixing structure is provided at the end of the synchronization rod 70 to prevent the synchronization rod 70 from escaping from the connecting section 22. One end of the elastic driving member 60 is hooked on the synchronization rod 70. When the locking state of the mounting rod 20 and the locking member 30 is released, the elastic driving member 60 releases energy to press against the synchronization rod 70, and the synchronization rod 70 drives the two mounting rods 20 to rotate around the rotating shaft 50. There is no need to set up a plurality of elastic driving members 60 to achieve synchronous unlocking of the two mounting rods 20, thereby simplifying the structure of the headrest adjustment device 100, simplifying the assembly process of the headrest adjustment device 100, and reducing the production cost of the headrest adjustment device 100.

[0084] Furthermore, the synchronization rod 70 is arranged in parallel with the rotating shaft 50, which can improve the stability of the two installation rods 20 when rotating relative to the base 10 and prevent the installation rods 20 from shaking during the rotation process.

[0085] It should be noted that the synchronization rod 70 and the rotating shaft 50 can be connected to the mounting rod 20 by a riveting process.

[0086] In some embodiments of the present invention, there is at least one locking segment 32 , and each locking segment 32 can be locked and matched with one of the two mounting rods 20 .

[0087] Specifically, the locking member 30 can be constructed as a symmetrical structure, and locking sections 32 are provided at both ends of the locking member 30. The locking sections 32 are arranged in a one-to-one correspondence with the locking portions 222, so that the two mounting rods 20 can be locked respectively. Accordingly, each mounting rod 20 is provided with an unlocking block 41 and a driving member 42 for releasing the lock, and the base 10 is a symmetrical structure, thereby realizing the installation and unlocking of the two mounting rods 20, the two unlocking blocks 41 and the two driving members 42. The specific structure is not repeated here one by one.

[0088] Optionally, the locking segment 32 can also be set as one, and one locking segment 32 can be set at one end of the locking member 30 in the first direction, and locked with the mounting rod 20 arranged opposite to the end. Correspondingly, one driving member 42 and one unlocking block 41 are also provided, and the unlocking block 41 cooperates with the locking segment 32, and the driving member 42 cooperates with the unlocking block 41. By driving the driving member 42 to release the lock between the locking segment 32 and the mounting rod 20, the elastic driving member 60 presses against the synchronization rod 70, so that the synchronization rod 70 drives the two mounting rods 20 to rotate synchronously, thereby realizing unlocking the two mounting rods 20 by one unlocking block 41 and one driving member 42, further simplifying the structure of the headrest adjustment device 100 and reducing the production cost.

[0089] The adjustment process of the headrest adjustment device 100 of the present invention is described in detail below.

[0090] Figure 3 and Figure 4 The figure is a schematic diagram of the headrest adjustment device 100 when it is locked. When the locking state of the headrest adjustment device 100 needs to be released, the driving member 42 is driven to move along the second direction, so that the driving member 42 drives the unlocking block 41 to rotate around the central axis of the rivet 80, and at the same time drives the groove wall of the slide groove 411 to press against the locking section 32 to twist it. At the same time, the locking section 32 slides in the matching groove 14, and the locking section 32 is disengaged from the locking portion 222. The mounting rod 20 and the locking member 30 are released from the locked state. At this time, the positions of the components of the headrest adjustment device 100 are schematically shown as follows. Figure 5 and Figure 6 As shown, one end of the elastic driving member 60 hooked on the synchronization rod 70 presses against the synchronization rod 70, and the synchronization rod 70 drives the installation rod 20 to rotate around the rotating shaft 50, so that the installation rod 20 automatically rotates to the position after being unlocked. Figure 7 The position shown improves the user's operating convenience. It should be noted that the unlocking component 40 is not released at this time.

[0091] When the mounting rod 20 is rotated and the driving member 42 is released, the energy generated by the twisting of the locking section 32 can drive the unlocking block 41 and the driving member 42 to reset together. At this time, the position diagram of the mounting rod 20 and the unlocking assembly 42 can refer to Figure 7 and Figure 8 shown.

[0092] When the headrest needs to be locked, the headrest is manually driven to rotate to drive the mounting rod 20 to rotate, the connecting section 22 presses against the locking section 32 to make it twist again, and the locking portion 222 locks with the locking section 32 to reset and lock the headrest again.

[0093] The seat according to the present invention comprises: a headrest and a headrest adjusting device 100 . The headrest adjusting device 100 is the above-mentioned headrest adjusting device 100 . The headrest is mounted on the mounting rod 20 .

[0094] Specifically, the headrest is connected to the mounting rod 20 , and a locking portion 222 is provided on the mounting rod 20 so that the locking portion 222 is locked and matched with the locking member 30 to limit the rotation of the mounting rod 20 , thereby fixing the headrest.

[0095] In addition, the rear seat headrests can be unlocked to avoid the rear view field, thereby increasing the rear view field. By linking the unlocking assembly 40 with the locking member 30, the unlocking assembly 40 can release the locking state between the locking member 30 and the mounting rod 20, so that the mounting rod 20 can rotate, thereby driving the headrest to flip relative to the seat back, simplifying the unlocking process of the headrest, saving the space occupied by the seat, and improving the user's experience. At the same time, the structure of the present application is simple, easy to assemble, and can reduce production costs.

[0096] Among them, the headrest adjustment device 100 can be installed on the rear seats. When the rear seats need to be folded forward, the headrests can be unlocked by the headrest adjustment device 100 to flip over so that the headrests of the rear seats avoid the front seats, preventing interference with the front seats when folding the rear seats, thereby improving user convenience.

[0097] According to the seat of the present invention, since the seat is provided with the above-mentioned headrest adjustment device 100, the seat adjustment device has a simple structure and is easy to assemble, which can reduce the production cost. The headrest can be unlocked by driving the driving member 42, and the unlocked headrest automatically rotates, thereby improving the convenience of the user and improving the user's usage experience.

[0098] According to the vehicle of the present invention, since the vehicle is provided with the above-mentioned seat, and the seat is provided with the above-mentioned headrest adjustment device 100, the headrest adjustment device 100 has a simple structure and is easy to assemble, which can reduce the production cost and is conducive to realizing the lightweight design of the vehicle. The headrest can be unlocked by driving the driving member 42, and the unlocked headrest rotates automatically, which improves the convenience of the user, improves the user's experience of use, and can improve the utilization rate of the space in the vehicle.

[0099] At the same time, when the headrest adjusting device 100 is arranged on the rear seat, the headrest can be avoided from the rear view field, thereby improving the safety of the vehicle, and the headrest adjusting device 100 can be unlocked together with other mechanisms of the vehicle through the driving member 42, or the headrest adjusting device 100 can be unlocked by the driving member 42 alone.

[0100] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A headrest adjustment device, characterized in that: include: Base (10); A mounting rod (20), the mounting rod (20) is rotatably mounted on the base (10) and is used to mount a headrest, and the mounting rod (20) is provided with a locking portion (222); A locking member (30), the locking member (30) being mounted on the base (10) and used for locking cooperation with the mounting rod (20); an unlocking assembly (40), the unlocking assembly (40) being mounted on the base (10) and used to drive the locking member (30) to store energy so as to release the locking state between the locking member (30) and the mounting rod (20); The mounting rod (20) comprises: A mounting section (21), wherein the mounting section (21) is used to mount the headrest; A connecting section (22), the connecting section (22) being connected to the mounting section (21), the locking portion (222) being formed on the connecting section (22), the connecting section (22) being provided with a first connecting portion (221), the first connecting portion (221) being rotatably connected to the base (10); The locking member (30) comprises: A main body section (31), wherein the main body section (31) is fixedly connected to the base (10); A locking section (32), one end of the locking section (32) is connected to the main section (31), and the other end of the locking section (32) is inserted through the base (10); The locking section (32) can be twisted relative to the main section (31) and store energy when in an unlocked state, and the locking section (32) can be locked and matched with the locking portion (222) when in a locked state.

2. The headrest adjustment device according to claim 1, characterized in that: It also includes a rotating shaft (50), the rotating shaft (50) is installed on the base (10), the first connecting portion (221) is connected to the rotating shaft (50), and the mounting rod (20) is suitable for rotating around the central axis of the rotating shaft (50).

3. The headrest adjustment device according to claim 2, characterized in that: It also comprises an elastic driving member (60) which is connected between the base (10) and the mounting rod (20) and is suitable for driving the mounting rod (20) in an unlocked state to rotate relative to the base (10).

4. The headrest adjustment device according to claim 3, characterized in that: The base (10) is provided with a limiting portion (11), and the limiting portion (11) can cooperate with the connecting section (22) to limit the rotation of the installation rod (20) relative to the base (10).

5. The headrest adjustment device according to claim 3, characterized in that: The elastic driving member (60) is suitable for driving the mounting rod (20) to rotate around the rotating shaft (50) at an angle of α in an unlocked state, and the relationship is satisfied: 0°<α≤105°.

6. The headrest adjustment device according to claim 1, characterized in that: The unlocking assembly (40) comprises: An unlocking block (41), the unlocking block (41) being rotatably mounted on the base (10), and the unlocking block (41) being provided with a driving slide groove (411), and the locking section (32) being passed through the driving slide groove (411); A driving member (42) is connected to the unlocking block (41) and is used to drive the unlocking block (41) to rotate, so as to drive the locking section (32) to move through the unlocking block (41) to release the locking state between the locking section (32) and the locking portion (222).

7. The headrest adjustment device according to claim 1, characterized in that: There are two installation rods (20), and the two installation rods (20) are arranged at intervals along the first direction; The headrest adjustment device also includes a synchronization rod (70), which is connected between the two installation rods (20) and is suitable for driving the two installation rods (20) to move synchronously.

8. The headrest adjustment device according to claim 7, characterized in that: There is at least one locking segment (32), and each locking segment (32) can be locked and matched with one of the two mounting rods (20).

9. A seat, characterized in that: include: Headrest; A headrest adjustment device, wherein the headrest adjustment device is the headrest adjustment device according to any one of claims 1 to 8, and the headrest is mounted on the mounting rod (20).

10. A vehicle, characterized in that: Comprising a seat according to claim 9.

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