Seat headrest, seat and vehicle

Abstract

The utility model discloses a seat headrest, a seat and a vehicle, relates to the technical field of automobiles, and aims to solve the problem that a headrest is easy to interfere with a front-row seat in the forward turning process of the existing rear-row seat. The seat headrest comprises a headrest body, a locking assembly, a connecting assembly, a first unlocking assembly and a second unlocking assembly. The locking assembly is connected with the headrest. The locking assembly comprises a mounting piece and a locking mechanism. The mounting piece is connected with the headrest, and the locking mechanism is arranged on the mounting piece. The connecting assembly is rotationally connected with the mounting piece. The locking mechanism is used for enabling the connecting assembly and the locking assembly to be connected in a clamped mode, and the locking mechanism is further used for enabling the connecting assembly and the locking assembly to be rotationally connected. The first unlocking assembly is arranged on the headrest and connected with the locking assembly. The second unlocking assembly is arranged on the headrest and connected with the locking assembly. The first unlocking assembly and the second unlocking assembly are both used for enabling the locking mechanism and the connecting assembly to be separated or clamped. The seat headrest is used for supporting the head of a passenger.

Description

Technical Field

[0001] The present application relates to the field of automotive technology, and in particular to a seat headrest, a seat, and a vehicle. Background Art

[0002] Vehicle seats are usually provided with headrests. When passengers are riding in the vehicle, the seat headrests can support the passengers' heads to improve the comfort of the passengers.

[0003] Existing vehicle seat headrests can usually only be adjusted to a certain extent in the height direction of the seat back to accommodate passengers of different sizes. When the rear seats are flipped forward, the rear seat headrests easily interfere with the front seat backs, affecting the flipping of the rear seats. Utility Model Content

[0004] The present application provides a seat headrest, a seat and a vehicle, which are used to solve the problem that the headrest of the existing rear seat easily interferes with the front seat during the process of flipping forward.

[0005] To achieve the above objectives, this application adopts the following technical solutions:

[0006] On the one hand, an embodiment of the present application provides a seat headrest, which includes a headrest, a locking assembly, a connecting assembly, a first unlocking assembly, and a second unlocking assembly. The locking assembly is connected to the headrest. The locking assembly includes a mounting member and a locking mechanism. The mounting member is connected to the headrest, and the locking mechanism is provided on the mounting member. The connecting assembly is rotatably connected to the mounting member. The locking mechanism is used to enable the connecting assembly and the locking assembly to be mutually engaged, and the locking mechanism is also used to enable the connecting assembly and the locking assembly to be rotatably connected. The first unlocking assembly is provided on the headrest and connected to the locking assembly. The second unlocking assembly is provided on the headrest and connected to the locking assembly. The first unlocking assembly and the second unlocking assembly are both used to separate or engage the locking mechanism with the connecting assembly.

[0007] The seat headrest provided in the embodiment of the present application has a connection assembly and a mounting member that are rotatably connected, so the mounting member can rotate around the connection assembly. Accordingly, the headrest connected to the mounting member can also rotate around the connection assembly. In actual use, when the locking mechanism is engaged with the connection assembly, the locking mechanism can limit the mounting member from rotating around the connection assembly, so that the mounting member and the headrest connected to the mounting member can remain in a stable setting state. When the locking mechanism is separated from the connection assembly, the mounting member can rotate around the connection assembly, thereby driving the headrest to rotate so that the headrest is folded relative to the seat back. The first unlocking assembly and the second unlocking assembly can be configured with different unlocking forms, respectively. In this way, passengers can choose different unlocking methods to separate the locking mechanism from the connection assembly according to actual use needs, which can meet the use needs in different scenarios.

[0008] In some embodiments, the connecting assembly includes a first connecting member and a first limiting member. The first connecting member is rotatably connected to the mounting member. The first limiting member is provided on the first connecting member, and a first limiting portion is formed on the first limiting member. The locking mechanism includes a first locking member and a first driving member. The first locking member is rotatably connected to the mounting member. The first locking member is provided with a first locking portion, and the first locking portion is used to engage with the first limiting portion so that the locking mechanism is engaged with the connecting assembly, and the first locking portion is also used to separate from the first limiting portion so that the locking mechanism is separated from the connecting assembly. The first driving member is slidably connected to the headrest and is connected to the first locking member, and is used to drive the first locking member to rotate so that the first locking portion is engaged with or separated from the first limiting portion. The first unlocking assembly and the second unlocking assembly are respectively connected to the first driving member.

[0009] In some embodiments, the first locking member includes a first locking member body and a first transmission member. The first locking member body is rotatably connected to the mounting member and is provided with a first locking portion. The first transmission member is connected to the first locking member body and is provided with a first transmission portion. The first transmission portion is located outside the rotation axis of the first locking member body and is connected to the first driving member.

[0010] In some embodiments, a first transmission groove is formed on the first driving member, and the first transmission part is inserted into the first transmission groove.

[0011] In some embodiments, the first driving member is provided with a second transmission slot, and the first unlocking assembly includes the second driving member and a second transmission member. The second driving member is rotatably connected to the headrest, with at least a portion inserted into the second transmission slot. The rotation axis of the second driving member is perpendicular to the sliding direction of the first driving member. The second transmission member is slidably connected to the headrest, and the second transmission member is connected to the second driving member, and the connection point between the second transmission member and the second driving member is located outside the rotation axis of the second driving member.

[0012] In some embodiments, the second driving member includes a first rotating portion, a first main portion, and a second main portion. The first rotating portion is rotatably connected to the headrest. The first main portion extends along a first direction, one end of which is connected to the first rotating portion, and the other end is inserted into the second transmission slot, wherein the first direction is perpendicular to the rotation axis of the first rotating portion. The second main portion extends along a second direction, one end of which is connected to the first rotating portion, and the second direction intersects the first direction and is perpendicular to the rotation axis of the first rotating portion. The second transmission member is connected to the end of the second main portion away from the first rotating portion.

[0013] In some embodiments, a push groove is formed on a side of the first driving member proximate to the second unlocking assembly. The second unlocking assembly includes a third driving member and a third transmission member. The third driving member is rotationally connected to the headrest and has a push portion formed thereon that engages with the push groove. The rotation direction of the third driving member is perpendicular to the sliding direction of the first driving member. One end of the third transmission member is connected to the third driving member, and the connection position is located outside the rotation axis of the third driving member.

[0014] In some embodiments, the third transmission member is a cable, a guide groove is provided on the peripheral side of the third driving member, and one end of the third transmission member is provided in the guide groove and connected to the inner wall of the guide groove.

[0015] On the other hand, an embodiment of the present application further provides a seat comprising the above-mentioned seat headrest.

[0016] On the other hand, an embodiment of the present application further provides a vehicle comprising the above-mentioned seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of a seat headrest provided in an embodiment of the present application;

[0018] Figure 2 A schematic diagram of the partial structure of a seat headrest provided in an embodiment of the present application;

[0019] Figure 3 This is one of the cross-sectional structural diagrams of the seat headrest provided in an embodiment of the present application;

[0020] Figure 4 This is a second schematic cross-sectional view of the seat headrest provided in an embodiment of the present application;

[0021] Figure 5 This is a third schematic cross-sectional view of the seat headrest provided in an embodiment of the present application;

[0022] Figure 6 This is a fourth schematic cross-sectional view of the seat headrest provided in an embodiment of the present application;

[0023] Figure 7 This is a fifth schematic cross-sectional structural diagram of a seat headrest provided in an embodiment of the present application;

[0024] Figure 8 This is a sixth schematic cross-sectional structural diagram of a seat headrest provided in an embodiment of the present application;

[0025] Figure 9 This is a seventh schematic cross-sectional structural diagram of a seat headrest provided in an embodiment of the present application;

[0026] Figure 10 This is the eighth schematic diagram of the cross-sectional structure of the seat headrest provided in the embodiment of the present application.

[0027] Reference numerals:

[0028] 100-seat headrest; 1-headrest; 11-accommodating cavity; 12-through hole; 13-sliding groove; 14-protective side plate; 2-locking assembly; 21-mounting member; 22-locking mechanism; 221-first locking member; 2211-first locking portion; 2212-first locking member body; 2213-first transmission member; 2214-first transmission portion; 2215-second torsion spring; 2216-first rotating rod; 2217-first limiting plate; 222-first driving member; 2221-first transmission groove; 2222-pushing groove; 2223-second transmission groove; 223-reset spring; 3-connecting assembly; 31-first connecting member; 3 2-first limiting member; 321-first limiting portion; 33-first elastic member; 4-first unlocking assembly; 41-second driving member; 411-first rotating portion; 412-first main body; 413-second main body; 414-mounting shaft; 415-fourth torsion spring; 42-second transmission member; 421-pushing rod; 422-pressing push plate; 5-second unlocking assembly; 51-third driving member; 511-pushing portion; 512-guide groove; 52-third transmission member; 521-cable; 6-second locking member; 61-second locking member body; 62-locking abutment member; 63-fourth transmission member; 631-second transmission portion; 7-damping member. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0030] In the description of this application, it should be understood that the terms, "up", "down", "left", "right", "front", "back", "inside", "outside", "center", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0031] In the following, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the quantity of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0032] In the description of this application, unless otherwise specified, " / " means "or." For example, A / B can mean A or B. "And / or" in this document is simply a description of an association between related objects, indicating that three relationships can exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, and B exists alone. Furthermore, "at least one" means one or more, and "a plurality" means two or more.

[0033] In the embodiments of the present application, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0034] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0035] In some related technologies, the headrest of the rear seat of a vehicle usually includes a connecting rod and a headrest body, the headrest body is fixedly connected to one end of the connecting rod, and the other end of the connecting rod is connected to the structure of the rear seat backrest.

[0036] In actual use, passengers sometimes flip the rear seats of the vehicle forward to expand the space of the vehicle trunk so that more items can be stored in the trunk, or a flat resting space is formed at the rear of the vehicle.

[0037] In the related art, in order to prevent the seat headrests of the rear seats from interfering with the front seats, the seat headrests can be flipped over, thereby reducing the interference between the seat headrests and the front seats.

[0038] In the related art, in order to ensure the stability of the seat headrest during normal use, a locking mechanism is also provided on the seat headrest, which can limit the rotation of the seat headrest so that the seat headrest can stably support the head of the passenger.

[0039] Correspondingly, the seat headrest is also provided with an unlocking mechanism, which is used to release the restriction of the locking mechanism on the rotation of the seat headrest, so that the seat headrest can be flipped over.

[0040] The unlocking method of the seat headrest in the related art is relatively simple, which is difficult to meet the different usage needs of customers.

[0041] Based on this, an embodiment of the present application provides a vehicle, comprising a vehicle body and seats. A cabin is formed within the vehicle body, and the seats are disposed within the cabin. The seats may include front seats and rear seats, both of which are for passengers, and the rear seats can be flipped toward the front of the vehicle.

[0042] It is understandable that the vehicle provided in the embodiment of the present application may also include other components, such as an engine, a transmission mechanism, etc., to realize the basic functions of the vehicle.

[0043] The rear seat may include a seat cushion, a backrest, and a headrest. One end of the backrest is pivotally connected to the seat cushion, and the headrest is located at the end of the backrest away from the seat cushion. It is understood that the rear seat may also include a frame and a rotation locking mechanism to achieve the basic functions of the rear seat.

[0044] Next, the seat headrest provided in the embodiment of the present application is further introduced.

[0045] Among them, such as Figure 1 As shown, Figure 1 This is a structural schematic diagram of a seat headrest 100 provided in an embodiment of the present application. The seat headrest 100 may include a headrest 1, a locking assembly 2, and a connecting assembly 3.

[0046] The locking assembly 2 is connected to the headrest 1. It includes a mounting member 21 and a locking mechanism 22. The mounting member 21 is connected to the headrest 1, and the locking mechanism 22 is mounted on the mounting member 21. In actual use, the mounting member 21 can provide a location for the locking mechanism 22. Thus, the overall structure of the headrest 1 does not require any significant modifications.

[0047] The connecting assembly 3 is rotatably connected to the mounting member 21. In this way, the mounting member 21 can rotate around the connecting assembly 3, and accordingly, the headrest 1 connected to the mounting member 21 can also rotate around the connecting assembly 3.

[0048] In actual use, one end of the connecting assembly 3 can be connected to the rear seat backrest to place the mounting member 21 and the headrest 1 connected to the mounting member 21 on the rear seat backrest. As the mounting member 21 rotates around the connecting assembly 3, the headrest 1 can be driven to rotate, thereby causing the headrest 1 to rotate relative to the rear seat backrest and fold up relative to the rear seat backrest.

[0049] like Figure 1As shown, the seat headrest 100 may further include a first unlocking assembly 4 and a second unlocking assembly 5. The first unlocking assembly 4 is disposed on the headrest 1 and connected to the locking assembly 2. The second unlocking assembly 5 is disposed on the headrest 1 and connected to the locking assembly 2. The first unlocking assembly 4 and the second unlocking assembly 5 are both used to separate or engage the locking mechanism 22 with the connecting assembly 3.

[0050] In actual use, when the locking mechanism 22 is engaged with the connecting assembly 3, the locking mechanism 22 can restrict the mounting member 21 from rotating about the connecting assembly 3, thereby maintaining the mounting member 21 and the headrest 1 connected thereto in a stable position. When the locking mechanism 22 is separated from the connecting assembly 3, the mounting member 21 can rotate about the connecting assembly 3, thereby driving the headrest 1 to rotate, allowing the headrest 1 to fold relative to the seat back.

[0051] In actual use, the first unlocking component 4 and the second unlocking component 5 can be configured with different unlocking modes. In this way, passengers can choose different unlocking modes to separate the locking mechanism 22 from the connecting component 3 according to their actual use needs, which can meet the use needs in different scenarios.

[0052] For example, the first unlocking assembly 4 can be configured to unlock manually by the passenger, while the second unlocking assembly 5 can be configured to unlock automatically as the seatback rotates. In this way, when the rear seat does not need to be flipped, the passenger can use the first unlocking assembly 4 to release the engagement between the locking mechanism 22 and the connecting assembly 3, allowing the headrest 1 to fold relative to the seatback to increase the driver's viewing angle. When the passenger flips the seatback, the second unlocking assembly 5 automatically disengages the locking mechanism 22 from the connecting assembly 3, eliminating the need for the passenger to manually unlock the engagement between the locking mechanism 22 and the connecting assembly 3.

[0053] In the actual application process, Figure 1 As shown, a receiving cavity 11 can be formed inside the headrest 1, and the locking assembly 2 can be arranged in the receiving cavity 11. The receiving cavity 11 can cover the structure of the locking assembly 2, thereby improving the aesthetics of the headrest 1 and also protecting the structure of the locking assembly 2.

[0054] In some embodiments, as Figure 2 As shown, Figure 2 This is a partial structural diagram of a seat headrest 100 provided in an embodiment of the present application. The connecting assembly 3 may include a first connecting member 31. The first connecting member 31 is rotatably connected to the mounting member 21. In this way, the mounting member 21 can rotate around the first connecting member 31.

[0055] The first limiting member 32 is disposed on the first connecting member 31 , and a first limiting portion 321 is formed on the first limiting member 32 . The locking mechanism 22 can be engaged with the first limiting portion 321 , thereby limiting the headrest 1 from rotating around the first connecting member 31 .

[0056] In some embodiments, as Figure 2 As shown, the locking mechanism 22 may include a first locking member 221 and a first driving member 222. The first locking member 221 is rotatably connected to the mounting member 21 and is provided with a first locking portion 2211. The first locking portion 2211 is configured to engage with the first limiting portion 321 to engage the locking mechanism 22 with the connecting assembly 3. The first locking portion 2211 is also configured to separate from the first limiting portion 321 to separate the locking mechanism 22 from the connecting assembly 3.

[0057] In actual use, the first locking member 221 can rotate. As the first locking member 221 rotates, the first locking portion 2211 can engage or disengage with the first limiting portion 321. When the first locking portion 2211 is engaged with the first limiting portion 321, the headrest 1 does not rotate relative to the seat back, providing stable support for the passenger's head. When the first locking portion 2211 disengages from the first limiting portion 321, the rotation of the headrest 1 is no longer restricted, and the headrest 1 can be rotated to a folded position.

[0058] In some embodiments, as Figure 2 As shown, the locking mechanism 22 may further include a first driving member 222, which is slidably connected to the headrest 1 and connected to the first locking member 221, and is configured to drive the first locking member 221 to rotate so as to engage or disengage the first locking portion 2211 with the first limiting portion 321. The first unlocking assembly 4 and the second unlocking assembly 5 are respectively connected to the first driving member 222.

[0059] In actual use, both the first unlocking assembly 4 and the second unlocking assembly 5 can drive the first driving member 222 to slide, thereby rotating the first locking member 221 connected to the first driving member 222. As the first locking member 221 rotates, the first locking portion 2211 can be separated from the first limiting portion 321. In this way, triggering either the first unlocking assembly 4 or the second unlocking assembly 5 can unlock the locking mechanism 22 from the connecting assembly 3, allowing the headrest 1 to rotate to the folded state.

[0060] In some embodiments, as Figure 1 As shown, a sliding groove 13 may be formed on the headrest 1, and at least a portion of the first driving member 222 is slidably connected in the sliding groove 13. Like this, the sliding groove 13 can form a guide for the first driving member 222, ensuring that the first driving member 222 slides along a predetermined direction.

[0061] In other embodiments, a plurality of guide members may be formed inside the headrest 1, and the plurality of guide members are relatively arranged on both sides of the first driving member 222. In this way, the movement of the first driving member 222 can also be guided.

[0062] In some embodiments, as Figure 1 As shown, the locking mechanism 22 may further include a return spring 223, one end of which is connected to the first driving member 222, and the other end of which is connected to the headrest 1. In actual use, the return spring 223 can keep the first driving member 222 in a predetermined position, reducing the shaking of the first driving member 222, and the return spring 223 can also push the first driving member 222 to return to its original position.

[0063] In some embodiments, as Figure 2 As shown, the first locking member 221 includes a first locking member body 2212 and a first transmission member 2213. The first locking member body 2212 is rotatably connected to the mounting member 21 and is provided with a first locking portion 2211. The first transmission member 2213 is connected to the first locking member body 2212 and is provided with a first transmission portion 2214. The first transmission portion 2214 is located on one side of the first locking member body 2212 and is connected to the first driving member 222.

[0064] In actual use, since the first transmission portion 2214 is connected to the first driving member 222, the sliding of the first driving member 222 can drive the movement of the first transmission portion 2214. Since the first transmission portion 2214 is located on one side of the first locking member body 2212, that is, the position of the first transmission portion 2214 does not coincide with the rotation axis of the first locking member body 2212, the first transmission portion 2214 can drive the first locking member body 2212 to rotate during movement.

[0065] Thus, as the first locking member body 2212 rotates, the first locking portion 2211 can rotate to a position separated from the first limiting portion 321. At this time, the mounting member 21 and the headrest 1 connected to the mounting member 21 can rotate around the first connecting member 31.

[0066] In some embodiments, the first locking member 221 may further include a second torsion spring 2215. The second torsion spring 2215 is sleeved outside the first locking member body 2212, with one end connected to the mounting member 21 and the other end connected to the first limiting plate. When the first locking portion 2211 is engaged with the first limiting portion 321, the second torsion spring 2215 may be in a stretched or compressed state. In this way, the second torsion spring 2215 can apply an elastic force toward the first limiting portion 321 to the first limiting plate, thereby ensuring that the first locking portion 2211 on the first limiting plate is stably engaged within the first limiting portion 321.

[0067] For example, Figure 2 As shown, the first connecting member 31 may include a connecting crossbar and a connecting rod. Figure 2 The left and right directions in the middle are penetrated on the mounting member 21 and are rotatably connected with the mounting member 21. One end of the connecting rod can be connected to the connecting cross bar, and the other end is connected to the structure of the seat back.

[0068] The first stopper 32 can be a semi-annular stopper plate, connected to the annular sidewall of the first connector 31, with the inner annular sidewall of the first stopper 32 abutting against the annular sidewall of the first connector 31. This creates a large contact area at the connection between the first stopper 32 and the first connector 31, providing improved stability when the two are connected by welding or other means.

[0069] Continue to refer to Figure 2 The first locking member body 2212 may include a first rotating rod 2216 and a first limiting plate 2217. The first rotating rod 2216 is rotatably connected to the mounting member 21, and the second torsion spring 2215 is sleeved on the outer side of the first rotating rod 2216. The first limiting plate 2217 is disposed around the first rotating rod 2216 and extends away from the first rotating rod 2216 to form a first locking portion 2211.

[0070] Continue to refer to Figure 2 The first limiting portion 321 can be a limiting groove. The first rotating rod 2216 is spaced apart and parallel to the connecting cross bar. When the first rotating rod 2216 rotates clockwise, the first locking portion 2211 can be engaged in the limiting groove. When the first rotating rod 2216 rotates counterclockwise, the first locking portion 2211 can be rotated out of the limiting groove.

[0071] It is understandable that in other embodiments, there may be an angle between the first rotating rod 2216 and the connecting cross bar, and it is only necessary to ensure that the first locking portion 2211 can be driven to move toward or away from the limiting recess during the rotation of the first rotating rod 2216.

[0072] In some embodiments, the connecting assembly 3 may further include a first elastic member 33. One end of the first elastic member 33 is connected to the mounting member 21, and the other end is connected to the first limiting member 32. When the first locking portion 2211 is engaged with the first limiting portion 321, the first elastic member 33 is in a deformed state.

[0073] In actual use, after the first locking portion 2211 separates from the first limiting portion 321, the first elastic member 33 returns to its original state under its own elastic force. During this process, the first elastic member 33 can drive the mounting member 21 to rotate around the first connecting member 31, thereby converting the headrest 1 into the folded state. In this way, the passenger does not need to manually rotate the headrest 1.

[0074] It is understandable that in other embodiments, one end of the first elastic member 33 may be connected to the headrest 1 and the other end may be connected to the first limiting portion 321. In this way, the elastic force of the first elastic member 33 can also drive the headrest 1 to rotate around the first connecting member 31.

[0075] Exemplarily, the first elastic member 33 may be a first torsion spring, which is sleeved around the circumference of the connecting crossbar. One end of the first torsion spring may be connected to the side wall of the mounting member 21, and the other end may be connected to the first stop member 32. When the first locking portion 2211 is engaged with the first stop member 321, the first torsion spring may be in a compressed or stretched state. Thus, after the first locking portion 2211 is separated from the first stop member 321, the first torsion spring may drive the mounting member 21 to rotate, thereby driving the headrest 1 to rotate about the first connecting member 31, thereby converting the headrest 1 into a folded state.

[0076] It is understood that the connecting crossbar of the first connecting member 31 and the first stopper 32 can also be disposed within the accommodating cavity 11, with one end of the connecting rod connected to the connecting crossbar and the other end extending to the outside of the headrest 1. It is understood that the sidewalls of the headrest 1 form a clearance where the connecting rod is disposed to prevent interference between the headrest 1 and the connecting rod during rotation.

[0077] In some embodiments, as Figure 1 As shown, the seat headrest 100 may further include a damping member 7. One end of the damping member 7 may be connected to the headrest 1, and the other end may be connected to the first connecting member 31, for slowing down the rotation speed of the headrest 1 relative to the first connecting member 31.

[0078] In some embodiments, damping element 7 may be a viscous damper, comprising a sealed housing, a rotating blade, and a rotating rod. A viscous liquid is disposed within the sealed housing, the rotating blade is disposed within the sealed housing, and the rotating rod extends through the sealed housing, one end of the rotating blade being connected to the rotating blade. The sealed housing is connected to headrest 1, and the rotating rod is connected to the connecting crossbar, with the rotation axis of the rotating rod coinciding with the rotation axis of the connecting crossbar.

[0079] In this way, during the rotation of the headrest 1 , resistance is generated between the viscous liquid inside the sealing shell and the rotating blades, thereby slowing down the rotation speed of the headrest 1 .

[0080] It is understandable that the damping member 7 may also be other dampers as long as it can slow down the rotation speed of the headrest 1 .

[0081] In some embodiments, as Figure 2 As shown, the first driving member 222 defines a first transmission groove 2221, and the first transmission portion 2214 is inserted into the first transmission groove 2221. Thus, when the first driving member 222 slides, the inner wall of the first transmission groove 2221 can abut against the first transmission portion 2214, pushing the first transmission portion 2214 to move, thereby driving the first locking member body 2212 to rotate, so that the first locking portion 2211 is separated from the first limiting portion 321.

[0082] In actual use, a gap may be left between the first transmission portion 2214 and the inner wall of the first transmission slot 2221 along the sliding direction of the first driving member 222. In this way, when the first unlocking assembly 4 or the second unlocking assembly 5 is impacted and causes the first driving member 222 to move slightly, the inner wall of the first transmission slot 2221 will not push the first transmission portion 2214 to move, and the first locking portion 2211 can remain engaged with the first limiting portion 321.

[0083] In some embodiments, as Figure 2 As shown, the seat headrest 1 may further include a second locking member 6. The second locking member 6 may include a second locking member body 61, a locking abutment member 62, and a fourth transmission member 63. The second locking member body 61 is rotatably connected to the mounting member. The locking abutment member 62 is disposed around the second locking member body 61. The end of the locking abutment member 62 away from the second locking member body 61 may abut against a side of the first limiting plate 2217 away from the first rotating rod 2216 to limit the rotation of the first rotating rod 2216.

[0084] In actual application, the locking abutment member 62 can enable the first locking portion 2211 to be stably engaged in the first limiting portion 321 , thereby ensuring that the headrest 1 can be stably set at the preset supporting position.

[0085] The fourth transmission member 63 is connected to the second locking member body 61. One end of the fourth transmission member 63 extends away from the axis of the second locking member body 61 to form a second transmission portion 631. Accordingly, the first driving member 222 can be provided with a pushing recess 2222. The second transmission portion 631 is inserted into the pushing recess 2222.

[0086] In actual use, when the first driving member 222 slides, the inner wall of the pushing recess 2222 can push the second transmission portion 631 to move, thereby rotating the second locking member body 61. As the second locking member body 61 rotates, the locking abutment 62 rotates therewith. In this way, the locking abutment 62 no longer restricts the first limiting plate 2217, and the first limiting plate 2217 can rotate together with the first rotating rod 2216, thereby separating the first locking portion 2211 from the first limiting portion 321.

[0087] In some embodiments, as Figure 2 As shown, the second locking member 6 may further include a third torsion spring 64. The third torsion spring 64 is sleeved on the outside of the second locking member body 61, with one end connected to the mounting member 21 and the other end connected to the locking abutment member 62. In actual use, the third torsion spring 64 can apply elastic force to the locking abutment member 62, so that the locking abutment member 62 can stably abut the side of the first limiting plate 2217 away from the first rotating rod 2216.

[0088] For example, Figure 3 As shown, Figure 3 This is one of the cross-sectional structural diagrams of the seat headrest 100 provided in an embodiment of the present application. The first locking portion 2211 is clamped together with the first limiting portion 321, and the locking abutment 62 abuts against the side of the first limiting plate 2217 away from the first rotating rod 2216.

[0089] At this time, if Figure 4 As shown, Figure 4 This is a second cross-sectional structural diagram of the seat headrest 100 provided in the embodiment of the present application. The first transmission part 2214 and the second transmission part 631 are located at Figure 4 The lower center edge may be horizontal.

[0090] like Figure 5 As shown, Figure 5 This is the third cross-sectional structural diagram of the seat headrest 100 provided in the embodiment of the present application. The first transmission part 2214 and the second transmission part 631 are connected to the first driving member 222 ( Figure 2 ) is driven to rotate a certain angle.

[0091] At this time, if Figure 6 As shown, Figure 6This is the fourth cross-sectional structural diagram of the seat headrest 100 provided in an embodiment of the present application. The locking abutment 62, driven by the second locking member body 61, rotates clockwise to a certain angle, thereby forming a certain gap between the locking abutment 62 and the first limiting plate. In this way, the first limiting plate, driven by the first locking member body 2212, can rotate counterclockwise, allowing the first locking portion 2211 to separate from the first limiting portion 321, thereby releasing the lock between the locking assembly 2 and the connecting assembly 3.

[0092] In some embodiments, as Figure 2 As shown, the first driving member 222 may be provided with a second transmission groove 2223, and the first unlocking assembly 4 may include a second driving member 41 and a second transmission member 42. The second driving member 41 is rotatably connected to the headrest 1, with at least a portion inserted into the second transmission groove 2223. The rotation axis of the second driving member 41 is perpendicular to the sliding direction of the first driving member 222.

[0093] During actual application, the second driving member 41 can rotate. During the rotation of the second driving member 41, the part inserted in the second transmission groove 2223 can drive the first driving member 222 to slide, thereby driving the first locking member 221 to move through the first driving member 222, so that the first locking part 2211 is separated from the first limiting part 321.

[0094] The second transmission member 42 is slidably connected to the headrest 1, and the second transmission member 42 is connected to the second driving member 41, and the connection position of the second transmission member 42 and the second driving member 41 is located outside the rotation axis of the second driving member 41. In this way, the second transmission member 42 can drive the second driving member 41 to rotate during the sliding process.

[0095] In actual use, a passenger can manually push the second transmission member 42 to rotate the second driving member 41, thereby releasing the engagement between the locking assembly 2 and the connecting assembly 3, allowing the passenger to adjust the setting of the headrest 1. In this way, the passenger can actively adjust the setting of the headrest 1 according to different needs.

[0096] In some embodiments, as Figure 7 As shown, Figure 7 This is the fifth cross-sectional structural diagram of the seat headrest 100 provided in the embodiment of the present application. The second driving member 41 may include a first rotating portion 411, a first main body portion 412, and a second main body portion 413. The first rotating portion 411 is rotatably connected to the headrest 1.

[0097] The first main body 412 extends along the first direction X, with one end connected to the first rotating portion 411 and the other end inserted into the second transmission slot 2223. The first direction X is perpendicular to the rotation axis of the first rotating portion 411. In this way, the rotation of the first rotating portion 411 can drive the first main body 412 to rotate.

[0098] The second main body 413 extends along a second direction Y, with one end connected to the first rotating portion 411. The second direction Y intersects the first direction X and is perpendicular to the rotation axis of the first rotating portion 411. This allows the first main body 412 and the second main body 413 to form a V-shape, allowing the first main body 412 to rotate synchronously with the rotation of the second main body 413.

[0099] The second transmission member 42 is connected to an end of the second main body 413 away from the first rotating part 411. In this way, the second transmission member 42 can push the second main body 413, thereby causing the second driving member 41 to rotate.

[0100] In some embodiments, as Figure 7 as well as Figure 2 As shown, the second driving member 41 may further include a mounting shaft 414 and a fourth torsion spring 415. One end of the mounting shaft 414 is rotationally connected to the first rotating portion 411, and the other end is connected to the headrest 1. The fourth torsion spring 415 is sleeved on the outside of the mounting shaft 414, with one end connected to the second driving member 41 and the other end connected to the headrest 1. In actual use, the second driving member 41 needs to overcome the elastic force of the fourth torsion spring 415 during rotation, so that the second driving member 41 can remain relatively stable in a predetermined state and prevent the second driving member 41 from shaking and colliding with other structures.

[0101] It is understandable that the main body of the first unlocking component 4 can also be arranged in the accommodating cavity 11 ( Figure 1 ), only a portion of the second transmission member 42 extends outside the accommodating cavity 11. In this way, the accommodating cavity 11 can shield the first unlocking assembly 4, and the passenger can release the lock between the locking assembly 2 and the connecting assembly 3 through the portion of the second transmission member 42 extending outside the accommodating cavity 11.

[0102] In some embodiments, as Figure 7 As shown, the peripheral wall of the headrest 1 may be formed with a through hole 12, and a protective side plate 14 may be provided around the through hole 12. The second transmission member 42 may include a push rod 421 and a push plate 422. The push rod 421 is inserted through the through hole 12, with one end abutting against the second main body 413 and the other end positioned within the sliding channel formed by the protective side plate 14. The push plate 422 is connected to the other end of the push rod 421.

[0103] In the actual application process, Figure 8 As shown, Figure 8 This is the sixth schematic diagram of the cross-sectional structure of the seat headrest 100 provided in the embodiment of the present application. The passenger can drive the push rod 421 to move by pressing the push plate 422, so that the push rod 421 drives the second driving member 41 to rotate.

[0104] In some embodiments, as Figure 2 As shown, a pushing groove 2222 is formed on the side of the first driving member 222 adjacent to the second unlocking assembly 5. The second unlocking assembly 5 may include a third driving member 51 and a third transmission member 52. The third driving member 51 is rotationally connected to the headrest 1 and has a pushing portion 511 formed thereon. The pushing portion 511 is inserted into the pushing groove 2222. The rotation direction of the third driving member 51 is perpendicular to the sliding direction of the first driving member 222.

[0105] In actual application, when the third driving member 51 rotates, the pushing portion 511 may abut against the side wall of the pushing groove 2222 , thereby driving the first driving member 222 to slide.

[0106] One end of the third transmission member 52 is connected to the third driving member 51, and the connection position is located outside the rotation axis of the third driving member 51. In this way, the third transmission member 52 can drive the third driving member 51 to rotate during the movement process.

[0107] In actual use, the other end of the third transmission member 52 can be connected to the structure of the seat cushion portion. In this way, when the seat back is tilted, the end of the third transmission member 52 connected to the seat cushion portion is fixed. As the seat back is tilted, the third transmission member 52 is pulled, thereby driving the third driving member 51 to rotate.

[0108] In some embodiments, as Figure 9 As shown, Figure 9 This is the seventh cross-sectional structural diagram of the seat headrest 100 provided in an embodiment of the present application. The third transmission member 52 can be a cable 521. A guide groove 512 is provided on the circumference of the third driving member 51. One end of the third transmission member 52 is disposed in the guide groove 512 and connected to the inner wall of the guide groove 512.

[0109] During actual application, the guide groove 512 can limit the cable 521 to prevent the cable 521 from falling off the peripheral wall of the third driving member 51 .

[0110] For example, Figure 10 As shown, Figure 10 The eighth cross-sectional structural diagram of the seat headrest 100 provided in the embodiment of the present application is that the left side of the third driving member 51 protrudes toward the direction close to the first driving member 222 to form a pushing portion 511. Figure 10In the vertical direction, the upper surface of the pushing portion 511 abuts against the top wall of the pushing groove 2222. One end of the cable 521 is from Figure 10 The lower left portion of the guide groove 512 is entered, and then goes around to the right side of the third driving member 51 .

[0111] As the seat back flips, the cable 521 gradually tightens and pulls the third driving member 51 along the Figure 10 As the third driving member 51 rotates in the counterclockwise direction, Figure 10 The counterclockwise movement in the middle of the driving part 511 drives the first driving member 222 to Figure 10 The first driving member 222 drives the first locking portion 2211 ( Figure 2 ) and the first limiting portion 321 ( Figure 2 ) is separated, thereby releasing the locking component 2 ( Figure 2 ) and the clamping state between the connecting component 3.

[0112] In actual use, the connecting rod can be hollow with openings at both ends. This allows the cable 521 to pass through the connecting rod and connect to the seat cushion deep within the seat back. This prevents the cable 521 from being exposed to the outside world, thus avoiding any need for protection.

[0113] The above is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or replacements within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A seat headrest for installation on a seat, characterized in that: include: headrest; A locking assembly connected to the headrest; the locking assembly includes a mounting member and a locking mechanism; The mounting member is connected to the headrest, and the locking mechanism is provided on the mounting member; A connecting assembly is rotatably connected to the mounting member; the locking mechanism is used to engage the connecting assembly with the locking assembly, and the locking mechanism is also used to rotatably connect the connecting assembly with the locking assembly; a first unlocking assembly, disposed on the headrest and connected to the locking assembly; as well as, a second unlocking assembly, disposed on the headrest and connected to the locking assembly; Wherein, the first unlocking assembly and the second unlocking assembly are both used to separate or engage the locking mechanism with the connecting assembly.

2. The seat headrest according to claim 1, characterized in that: The connection component includes: a first connecting member, rotatably connected to the mounting member; and a first limiting member, disposed on the first connecting member, wherein a first limiting portion is formed on the first limiting member; The locking mechanism comprises: A first locking member is rotatably connected to the mounting member; the first locking member is provided with a first locking portion, the first locking portion is used to engage with the first limiting portion to engage the locking mechanism with the connecting assembly, and the first locking portion is further used to separate from the first limiting portion to separate the locking mechanism from the connecting assembly; and a first driving member, slidably connected to the headrest and connected to the first locking member, for driving the first locking member to rotate so that the first locking portion is engaged with or separated from the first limiting portion; Wherein, the first unlocking component and the second unlocking component are respectively connected to the first driving member.

3. The seat headrest according to claim 2, characterized in that: The first locking member comprises: A first locking member body is rotatably connected to the mounting member, and the first locking portion is provided on the first locking member body; and The first transmission member is connected to the first locking member body, and the first transmission member is provided with a first transmission part; the first transmission part is located outside the rotation axis of the first locking member body and is connected to the first driving member.

4. The seat headrest according to claim 3, characterized in that: A first transmission groove is formed on the first driving member, and the first transmission part is inserted into the first transmission groove.

5. The seat headrest according to claim 2, characterized in that: The first driving member is provided with a second transmission groove, and the first unlocking component includes: a second driving member, rotatably connected to the headrest, at least a portion of which is inserted into the second transmission groove, wherein the rotation axis of the second driving member is perpendicular to the sliding direction of the first driving member; and The second transmission member is slidably connected to the headrest. The second transmission member is connected to the second driving member, and the connection position between the second transmission member and the second driving member is located outside the rotation axis of the second driving member.

6. The seat headrest according to claim 5, characterized in that: The second driving member includes: a first rotating portion, rotatably connected to the headrest; A first main body portion extends along a first direction, one end of which is connected to the first rotating portion and the other end of which is inserted into the second transmission slot, wherein the first direction is perpendicular to the rotation axis of the first rotating portion; and a second main body portion extending along a second direction, one end of which is connected to the first rotating portion, wherein the second direction intersects the first direction and is perpendicular to the rotation axis of the first rotating portion; Wherein, the second transmission member is connected to an end of the second main body away from the first rotating part.

7. The seat headrest according to claim 2, characterized in that: A pushing groove is formed on a side of the first driving member close to the second unlocking component; the second unlocking component includes: A third driving member is rotatably connected to the headrest, the third driving member is formed with a pushing portion, and the pushing portion is inserted into the pushing groove; the rotation direction of the third driving member is perpendicular to the sliding direction of the first driving member; and One end of the third transmission member is connected to the third driving member, and the connection position is located outside the rotation axis of the third driving member.

8. The seat headrest according to claim 7, characterized in that: The third transmission member is a cable, a guide groove is provided on the circumference of the third driving member, and one end of the third transmission member is provided in the guide groove and connected to the inner wall of the guide groove.

9. A seat, characterized in that: The seat headrest comprises the seat headrest according to any one of claims 1 to 8.

10. A vehicle, characterized in that: Including the seat described in claim 9.

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