Adjustable seat headrest, automobile seat and automobile

Abstract

The utility model relates to the technical field of automobile interiors, in particular to an adjustable seat headrest, an automobile seat and an automobile. An adjustable seat headrest includes a headrest rod including a first rod member. The adjustable seat headrest comprises a stabilizing block; a mounting hole is formed in the stabilizing block, and the first rod piece is inserted and matched with the mounting hole. The mounting hole is formed in the stabilizing block, so that the size precision of the mounting hole is easier to guarantee, and the gap between the mounting hole and the headrest rod can be reduced as much as possible. In this way, it can be guaranteed that the headrest body can move more stably relative to the headrest rod, and clamping stagnation is not prone to occurring; and meanwhile, the stability of the adjustable seat headrest is also ensured.

Description

Technical Field

[0001] This utility model relates to the field of automotive interior technology, and in particular to an adjustable headrest, a car seat, and a vehicle. Background Technology

[0002] The headrest is a crucial component of a car seat. To ensure effective head support, it needs height adjustment to accommodate passengers of different heights. To achieve this, the headrest features a headrest rod that is fixedly inserted into the seat back. The headrest body can slide relative to the headrest rod, allowing for height adjustment relative to the seat back.

[0003] However, in existing headrests, a large gap usually needs to be left between the headrest rod and the main body of the headrest, which can easily lead to problems such as failure and poor stability when the headrest is adjusted. Utility Model Content

[0004] This utility model provides an adjustable headrest, a car seat, and a vehicle to solve the technical problems in the prior art where adjustable headrests are prone to jamming and lack of stability during height adjustment.

[0005] In a first aspect, this utility model provides an adjustable seat headrest, which includes:

[0006] A headrest rod, the headrest rod including a first rod member;

[0007] A stabilizing block is provided with a mounting hole, and the first rod is installed in the mounting hole and slidably connected to the mounting hole.

[0008] Optionally, the first rods are arranged in pairs.

[0009] Optionally, the headrest rod includes a second rod that is fixedly connected between a pair of first rods.

[0010] Optionally, the stabilizing blocks are arranged at intervals along the extension direction of the first rod.

[0011] Optionally, the second rod is fixedly connected to one end of the first rod.

[0012] Optionally, the first rod and the second rod are integrally formed.

[0013] Optionally, the second rod is connected to the same end of the pair of first rods.

[0014] Optionally, both the first rod and the second rod are hollow circular tubes.

[0015] Optionally, the first member includes a first segment and a second segment; the extension directions of the first segment and the second segment intersect; the second member is a straight rod.

[0016] Optionally, both the first and second rods are metal rods.

[0017] Optionally, the adjustable seat headrest further includes a headrest frame, a locking plate, and a reset elastic element;

[0018] The first rod is provided with a plurality of locking slots, which are arranged at intervals along the extension direction of the first rod; the stabilizing block is fixedly installed on the headrest frame;

[0019] The locking plate is movably mounted on the headrest frame, and the direction of movement of the locking plate intersects with the extension direction of the first rod; the reset elastic member is connected between the locking plate and the headrest frame, and is used to provide an elastic holding force to hold the locking plate in the locking groove.

[0020] Optionally, the adjustable seat headrest also includes a housing;

[0021] The headrest frame is fixedly installed inside the housing; the housing has a recessed cavity that extends into the interior of the housing.

[0022] Optionally, the adjustable seat headrest further includes a cover plate; the cover plate is fixedly disposed over the opening of the recess.

[0023] Optionally, the adjustable seat headrest also includes operation buttons;

[0024] The operation button is movably mounted on the headrest frame, one end of the operation button is connected to the locking plate, and the other end of the operation button extends outside the headrest frame.

[0025] Optionally, the stabilizing block is provided with a snap-fit ​​structure, and the headrest frame is provided with a mounting slot; the stabilizing block is fixedly snapped into the mounting slot by the snap-fit ​​structure.

[0026] Secondly, this utility model embodiment provides a car seat, the car seat including any of the adjustable headrests described above.

[0027] Thirdly, embodiments of the present invention provide a vehicle, the vehicle including any of the aforementioned car seats.

[0028] Compared with prior art, the present invention has the following advantages:

[0029] The adjustable seat headrest provided in this embodiment of the utility model specifically includes a stabilizing block and a headrest rod, wherein:

[0030] The headrest rod includes a first rod; the adjustable headrest includes a stabilizing block with mounting holes that can be inserted into and slidably connected to the first rod. The stabilizing block is an independent part, and placing the mounting holes on it makes it easier to ensure the dimensional accuracy of the mounting holes. Therefore, this design minimizes the gap between the mounting holes and the headrest rod. This ensures smoother movement of the adjustable headrest, reducing the likelihood of jamming, and also guarantees the stability of the adjustable headrest.

[0031] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0033] Figure 1 This is an axonometric view of the adjustable seat headrest described in this utility model;

[0034] Figure 2 for Figure 1 Exploded view;

[0035] Figure 3 This is a schematic diagram of the internal structure of the adjustable seat headrest described in this utility model;

[0036] Figure 4 for Figure 3 Top view;

[0037] Figure 5 for Figure 4 A cross-sectional view along AA;

[0038] Figure 6 for Figure 2 A schematic diagram of the combination of the headrest rod, locking plate, stabilizing block and operation buttons;

[0039] Figure 7 for Figure 1 Axonometric view of the medium-stable block;

[0040] Figure 8 for Figure 1 Axonometric drawing of the locking plate and the reset elastic element

[0041] Figure 9 for Figure 1 Axonometric view of the headrest frame.

[0042] Reference numerals: 1. Headrest body; 11. Headrest cover; 12. Headrest foam; 13. Stabilizing block; 131. Mounting hole; 132. Buckle structure; 14. Headrest frame; 141. Snap-fit ​​groove; 15. Locking plate; 151. Perforation; 152. Metal sheet; 16. Reset elastic element; 17. Housing; 171. Cavity; 172. Cover plate; 173. First half-shell; 174. Second half-shell; 18. Operation button; 19. Decorative strip; 2. Headrest rod; 21. First rod; 211. Locking groove; 22. Second rod. Detailed Implementation

[0043] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0044] In the realm of automotive interior design, the headrest is a crucial component of car seats. While driving or riding in a vehicle, occupants can rest their heads against the headrest for a more comfortable experience. In situations such as sudden braking or accidents, the headrest provides flexible support to protect the occupant's head and cervical spine.

[0045] However, occupants vary in height. If the headrest height is not properly adapted to the occupant's head height, the headrest's support and protection for the head will be significantly reduced. Therefore, height adjustability is one of the most important functional requirements for headrests.

[0046] Existing seat headrests typically have two headrest rods for mounting the headrest body. To facilitate installation and adjustment, a large clearance is provided between the headrest body and the headrest rods. When adjusting the headrest height, the headrest body is prone to shifting relative to the headrest rods. This increases the resistance between the headrest body and the headrest rods, causing the headrest body's movement relative to the rods to become sluggish. Furthermore, the clearance between the headrest rods and the headrest body is also detrimental to the stability of the headrest body. The headrest body is prone to wobbling relative to the headrest rods, which can cause abnormal noises and affect the occupant's experience, and also negatively impact the headrest's support effectiveness.

[0047] To overcome the above problems, this utility model provides an adjustable seat headrest. (See reference...) Figure 1As shown, the adjustable seat headrest includes a headrest body 1 and a headrest rod 2.

[0048] The headrest rod 2 is typically fixedly installed on the backrest of a car seat to provide a stable mounting base for the headrest body 1. The headrest rod 2 specifically includes a first rod 21, the structure of which can be determined according to actual needs; it can be a straight rod or a curved rod with a certain degree of curvature. During installation, the extension direction of the first rod 21 is along the height direction of the headrest body 1; in other words, the extension direction of the first rod 21 is generally inclined downwards or vertically fixed to the backrest of the car seat. In this embodiment, the headrest rod 2 may also include a second rod 22. The first rods 21 are arranged in pairs, usually two. In rare cases, the number of headrest rods 2 may be four, six, etc. The second rod 22 is fixedly connected between the pairs of first rods 21 to connect them into a single unit. This can improve the structural strength of the headrest rod 2 to a certain extent, providing a more stable mounting base for the headrest body 1. The second member 22 can be fixed to the first member 21 by welding, riveting, screw connection, or other means, or it can be fixedly connected to the first member 22 by integral molding.

[0049] The headrest body 1 is specifically a pillow-shaped structure that contacts the occupant's head and provides flexible support for it. Typically, it can be referenced... Figure 2 As shown, the headrest body 1 has an outer headrest cover 11 and a headrest foam 12 disposed inside the headrest cover 11. The headrest cover 11 is generally made of leather or textile material to provide occupants with a good visual and tactile experience. The headrest foam 12 is generally made of soft filling materials such as sponge to provide flexible support for the occupant's head.

[0050] For reference Figure 2 and Figure 6 As shown, the headrest body 1 of the adjustable seat headrest includes a stabilizing block 13. In this embodiment of the invention, please refer to... Figure 7 As shown, the stabilizing block 13 is specifically a cubic block structure. The stabilizing block 13 has mounting holes 131, and the first rod 21 is inserted into the mounting holes 131. During installation, one end of the first rod 21 extends into the headrest body 1 and is inserted into the mounting hole 131, while also slidingly connecting with the mounting hole 131. In this way, the headrest body 1 can adjust its position on the first rod 21, using the first rod 21 as a track, based on the insertion and engagement of the first rod 21 with the mounting hole 131, thereby achieving height adjustment of the headrest body 1.

[0051] The stabilizing block 13 offers numerous benefits to the adjustable headrest. First, the stabilizing block 13 is an independent part on the headrest body 1. During machining, it is easier to ensure the dimensional accuracy of the mounting hole 131. This minimizes the gap between the mounting hole 131 and the headrest rod 2, ensuring smoother movement of the headrest body 1 relative to the headrest rod 2, and also guaranteeing the stability of the headrest body 1 relative to the headrest rod 2.

[0052] Secondly, the frictional resistance between the headrest rod 2 and the mounting hole 131 can be reduced by specifically selecting the material of the stabilizing block 13. This eliminates the need to change the material of other structures in the headrest body 1, which helps control the production cost of the adjustable seat headrest.

[0053] Finally, when the mounting hole 131 is damaged due to wear or an accident, simply replacing the stabilizing block 13 will ensure that the gap between the mounting hole 131 and the headrest rod 2 remains within the ideal range. This eliminates the need to replace other parts on the headrest body 1, effectively reducing the cost of maintenance and repair of the adjustable seat headrest.

[0054] Based on the aforementioned structure, alternatively, reference may be made to Figure 3 As shown, the first rod 21 can be engaged with at least two stabilizing blocks 13. The stabilizing blocks 13 engaged with the same first rod 21 are arranged with intervals between them. In other words, for the same first rod 21, the headrest body 1 has two, three, four, or even more stabilizing blocks 13 arranged along the extension direction of the first rod 21. A certain interval is left between adjacent stabilizing blocks 13, which allows for multi-point retention between the first rod 21 and the headrest body 1, further improving the stability of the headrest body 1 relative to the headrest rod 2. Simultaneously, with the same length of the first rod 21, this multi-point retention arrangement reduces the contact area between the stabilizing blocks 13 and the headrest rod 2, thereby reducing the frictional resistance between the headrest rod 2 and the stabilizing blocks 13. This helps reduce the overall resistance when adjusting the height of the adjustable seat headrest, thus further facilitating the occupant's adjustment of the headrest height.

[0055] In other embodiments, the same first rod 21 may also be coupled with only one stabilizing block 13. In this case, the length of the stabilizing block 13 along the extension direction of the first rod 21 can be increased, thereby improving the holding effect between the stabilizing block 13 and the first rod 21.

[0056] Optionally, you may refer to Figure 3As shown, the second rod 22 can be fixedly connected to the end of the first rod 21. Preferably, the second rod 22 is connected to the same end of the paired first rods 21. That is, the paired first rods 21 and second rod 22 can form an inverted U-shaped headrest rod 2. After the headrest rod 2 is assembled with the headrest body 1, the second rod 22 and a portion of the first rod 21 are both located inside the headrest body 1. This means that in addition to the first rod 21, the second rod 22 can also provide support for the headrest body 1 to further improve the stability of the adjustable seat headrest. Of course, in other embodiments, the second rod 22 can also be connected to a position other than the end of the first rod 21, such as the middle position of the first rod 21. In this case, the second rod 22 may not be located inside the headrest body 1.

[0057] In this embodiment of the invention, both the first rod 21 and the second rod 22 are hollow circular tubes, preferably made of metal materials such as aluminum or steel. The second rod 22 is a straight rod, and the first rod 21 includes a first segment and a second segment. The extension directions of the first and second segments intersect, causing the first rod 21 to have a certain angle of bend. The second rod 22 is connected to the end of the first segment.

[0058] Based on the aforementioned structure, optionally, the first rod 21 and the second rod 22 are integrally formed bent structures. That is, the headrest rod 2 can be an inverted U-shaped structure formed by bending a hollow tube or a solid rod. This integrally formed structure, compared to structures formed by welding, riveting, or assembly, has better structural strength and avoids dimensional or shape changes caused by welding deformation or tolerance accumulation. It is also easier to ensure structural and dimensional consistency between the first rods 21, thereby reducing jamming or obstruction when adjusting the position of the headrest body 1 relative to the headrest rod 2.

[0059] Optionally, you may refer to Figure 4 , Figure 5 As shown, the headrest body 1 of the adjustable seat headrest described in this embodiment of the present invention also includes a headrest frame 14, a locking piece 15, and a reset elastic member 16.

[0060] For reference Figure 9 As shown, the headrest frame 14 can specifically be a three-dimensional frame structure. Multiple reinforcing ribs are provided on it to enhance the structural strength of the headrest frame 14. The aforementioned stabilizing block 13 is fixedly installed on the headrest frame 14, allowing the headrest frame 14 to be adjusted in position relative to the headrest rod 2.

[0061] The first rod 21 is provided with multiple locking slots 211, and correspondingly, a locking piece 15 is movably installed on the headrest frame 14. The direction of movement of the locking piece 15 intersects the extension direction of the first rod 21, so that the locking piece 15 can be moved and engaged in the locking slot 211, and the headrest frame 14 can be held in its current position. In the embodiment of this utility model, the direction of movement of the locking piece 15 and the extension direction of the first rod 21 are preferably arranged perpendicular to each other. The multiple locking slots 211 are arranged at intervals along the extension direction of the first rod 21, so that the headrest body 1 can be fixedly held in different positions relative to the headrest rod 2, thereby meeting the adjustment needs of the adjustable seat headrest for different heights.

[0062] A reset elastic element 16 is connected between the locking plate 15 and the headrest frame 14 to provide an elastic retaining force that holds the locking plate 15 in the locking groove 211. The reset elastic element 16 is typically a spring. When the height of the adjustable headrest is not required, the reset elastic element 16 holds the locking plate 15 in the position engaged with the locking groove 211. When the height of the adjustable headrest needs to be adjusted, the occupant can manually push the locking plate 15 to disengage it from the locking groove 211. At this time, the reset elastic element 16 deforms under force and accumulates potential energy, unlocking the headrest frame 14 and allowing it to move relative to the headrest rod 2. After adjustment, the external force on the locking plate 15 is removed. The locking plate 15 then automatically engages with the locking groove 211 under the action of the reset elastic element 16, thus holding the headrest frame 14 in its current position.

[0063] In the embodiments described in this utility model, reference can be made to Figure 8 As shown, the locking plate 15 may specifically include a sheet-like structure made of plastic, the surface of which is provided with integrally formed reinforcing ribs for improving strength. To simultaneously mate with the locking grooves 211 on the paired first rods 21, the locking plate 15 can be designed to be relatively large, and a through hole 151 for the paired first rods 21 to pass through is added to the locking plate 15. The part of the locking plate 15 used for engaging with the locking groove 211 can be made of a material with good structural strength and rigidity, such as iron, steel, or hardened ceramics. In the embodiment described in this utility model, a metal plate 152 is fixedly provided on the side of the through hole 151 facing the locking groove 211, so that engagement with the locking groove 211 is achieved through the metal plate 152.

[0064] Optionally, the headrest body 1 may further include a housing 17, with the aforementioned headrest frame 14 fixedly installed within the housing 17. The aforementioned headrest foam 12 is disposed on the housing 17, thus providing a more flat support for the headrest foam 12 using the housing 17. Furthermore, a recessed cavity 171 can be provided in the housing 17. This cavity 171 can accommodate additional devices such as speakers and heaters, enabling the adjustable seat headrest to have more diverse functions such as music playback and heating. Optionally, further details can be referenced. Figure 2 As shown, the headrest body 1 can also include a cover plate 172. The cover plate 172 is fixedly installed at the opening of the cavity 171 to protect the aforementioned additional device. At the same time, the cover plate 172 can also provide a flatter support for the aforementioned headrest foam 12.

[0065] Optionally, the headrest body 1 also includes operation buttons 18;

[0066] The operation button 18 is movably mounted on the headrest frame 14, with one end of the operation button 18 being drive-connected to the locking plate 15. The drive-connection between the operation button 18 and the locking plate 15 can be achieved through a direct fixed connection, or by using a connector or transmission assembly. The other end of the operation button 18 extends beyond the headrest frame 14 to allow the occupant to operate it. The operation button 18 is preferably located on either side of the adjustable headrest in the horizontal direction to prevent limited operating space for the occupant when the adjustable headrest is adjusted to its lowest position.

[0067] Optionally, you may refer to Figure 2 and Figure 6 As shown, a snap-fit ​​structure 132 can be provided on the stabilizing block 13, and a mounting slot 141 can be provided on the headrest frame 14. The shape of the mounting slot 141 matches the shape of the stabilizing block 13. For example, when the stabilizing block 13 is a cubic block structure, the slot 141 is also cubic; when the stabilizing block 13 is a cylindrical block structure, the slot 141 is also cylindrical, so as to achieve a good fixing and holding effect on the stabilizing block 13. The stabilizing block 13 is fixedly snapped into the mounting slot 141 by the snap-fit ​​structure 132, so as to simplify the installation and removal of the stabilizing block 13. This makes it easier to install the stabilizing block 13, thereby improving the production and assembly efficiency of the adjustable seat headrest. At the same time, during maintenance, this also makes it easier to remove the stabilizing block 13, thereby improving the maintenance efficiency of the adjustable seat headrest.

[0068] For reference Figure 2As shown, the headrest body 1 of this embodiment also includes a decorative strip 19. The decorative strip 19 can beautify the seams of other structures on the headrest body 1 to improve the visual experience of the occupant. In this embodiment, the aforementioned shell 17 specifically includes a first half-shell 173 and a second half-shell 174. Both the first half-shell 173 and the second half-shell 174 are half-shell structures with one open end. During installation, the headrest frame 14 and other structures can be pre-installed on one of the first half-shell 173 and the second half-shell 174, and then the first half-shell 173 and the second half-shell 174 are fixedly fastened together with their openings facing each other to form a complete shell 17. This assembly method is convenient, simple, and easy to operate. Based on this, the decorative strip 19 can be fixedly installed at the fastening seam of the first half-shell 173 and the second half-shell 174 to beautify the fastening seam of the first half-shell 173 and the second half-shell 174.

[0069] This utility model embodiment also provides a car seat, which includes any of the adjustable headrests described above.

[0070] The car seat described in this embodiment includes a seat cushion and a backrest. The seat cushion is typically installed in the vehicle cabin to support the occupant's legs and buttocks. The backrest extends upward from one end of the seat cushion to support the occupant's back. An adjustable headrest is installed at the upper end of the backrest to support the occupant's head.

[0071] The adjustable headrest includes a headrest body 1 and a headrest rod 2. The headrest rod 2 extends along the height direction of the headrest body 1 to provide a stable mounting base for the headrest body 1. The headrest rod 2 specifically includes a first rod 21. The structure of the first rod 21 can be determined according to actual needs; it can be a straight rod or a curved rod with a certain degree of curvature. During installation, the first rod 21 extends along the height direction of the headrest body 1. In other words, the first rod 21 is generally arranged inclined downwards or vertically fixed to the backrest of the car seat. The headrest rod 2 may also include a second rod 22. The first rods 21 are arranged in pairs, usually two. The second rod 22 is fixedly connected between the pairs of first rods 21 to connect them into a single unit. The second rod 22 can be fixed to the first rod 21 by welding, riveting, screw connection, etc., or it can be integrally formed and fixedly connected to the first rod 21. The second rod 22 is specifically fixedly connected to the end of the first rod 21 that extends into the headrest body 1. In other words, the pair of first rods 21 and second rods 22 can form an inverted U-shaped headrest rod 2. After the headrest rod 2 is assembled with the headrest body 1, the second rod 22 and a portion of the first rod 21 are both located inside the headrest body 1. The first rod 21 and the second rod 22 are preferably integrally formed bent structures, that is, the headrest rod 2 can be an inverted U-shaped structure formed by bending a hollow tube or a solid rod. The second rod 22 is a straight rod, and the first rod 21 includes a first segment and a second segment. The extension directions of the first segment and the second segment intersect, so that the first rod 21 has a certain angle of bending. The second rod 22 is connected to the end of the first segment.

[0072] The headrest body 1 includes an outer headrest cover 11 and headrest foam 12 disposed within the headrest cover 11. The headrest cover 11 is generally made of leather or textile material, and the headrest foam 12 is generally made of soft filling material such as sponge. A stabilizing block 13 is provided inside the headrest body 1, which can be referenced. Figure 7 As shown, the stabilizing block 13 is provided with a mounting hole 131, and the first rod 21 is inserted into and slidably connected to the mounting hole 131. In this way, the headrest body 1 can adjust its position on the first rod 21 based on the insertion and engagement of the first rod 21 with the mounting hole 131, using the first rod 21 as a track, thereby achieving the height adjustment of the headrest body 1.

[0073] In some embodiments, a single first rod 21 cooperates with at least two stabilizing blocks 13. In other words, for the same first rod 21, the headrest body 1 has two, three, four, or even more stabilizing blocks 13 arranged in the extension direction of the first rod 21. A certain gap is left between adjacent stabilizing blocks 13, which allows for multi-point retention between the first rod 21 and the headrest body 1, further improving the stability of the headrest body 1 relative to the headrest rod 2. Simultaneously, with the same length of the first rod 21, this multi-point retention arrangement reduces the contact area between the stabilizing blocks 13 and the headrest rod 2, thereby reducing the frictional resistance between the headrest rod 2 and the stabilizing blocks 13. This helps reduce the overall resistance when adjusting the height of the adjustable seat headrest, thus further facilitating the occupant's height adjustment. In other embodiments, the same first rod 21 may also cooperate with only one stabilizing block 13. In this case, the length of the stabilizing block 13 along the extension direction of the first rod 21 can be increased to improve the retention effect between the stabilizing block 13 and the first rod 21.

[0074] The headrest body 1 also includes a headrest frame 14, a locking plate 15, and a reset elastic element 16. (See reference...) Figure 9 As shown, the headrest frame 14 is specifically a three-dimensional frame structure. Multiple reinforcing ribs are provided on it to enhance the structural strength of the headrest frame 14. A stabilizing block 13 is fixedly installed on the headrest frame 14, allowing the headrest frame 14 to be adjusted in position relative to the headrest rod 2. A snap-fit ​​structure 132 is provided on the stabilizing block 13, and a mounting slot 141 is provided on the headrest frame 14. The shape of the mounting slot 141 matches the shape of the stabilizing block 13. The stabilizing block 13 is snapped into the mounting slot 141 by the snap-fit ​​structure 132.

[0075] The first rod 21 has multiple locking slots 211, and correspondingly, locking plates 15 are movably mounted on the headrest frame 14. The direction of movement of the locking plates 15 intersects the extension direction of the first rod 21, so that the locking plates 15 can move and engage in the locking slots 211, allowing the headrest frame 14 to remain in its current position. The multiple locking slots 211 are arranged at intervals along the extension direction of the first rod 21, so that the headrest body 1 can be fixedly held in different positions relative to the headrest rod 2, thereby meeting the height adjustment requirements of the adjustable seat headrest. The number of locking slots 211 and the interval between locking slots 211 depend on the actual adjustment needs. For example, five locking slots 211 can be provided on a single first rod 21, with a 12 mm interval between locking slots 211, so that the adjustable seat headrest can be adjusted in height with a total stroke of 48 mm.

[0076] A reset elastic element 16 is connected between the locking plate 15 and the headrest frame 14 to provide an elastic retaining force that holds the locking plate 15 in the locking groove 211. The reset elastic element 16 is typically a spring. When the height of the adjustable headrest is not required, the reset elastic element 16 holds the locking plate 15 in the position engaged with the locking groove 211. When the height of the adjustable headrest needs to be adjusted, the occupant can manually push the locking plate 15 to disengage it from the locking groove 211. At this time, the reset elastic element 16 deforms under force and accumulates potential energy, unlocking the headrest frame 14 and allowing it to move relative to the headrest rod 2. After adjustment, the external force on the locking plate 15 is removed. The locking plate 15 then automatically engages with the locking groove 211 under the action of the reset elastic element 16, thus holding the headrest frame 14 in its current position.

[0077] In the embodiments described in this utility model, reference can be made to Figure 8 As shown, the locking plate 15 may specifically include a sheet-like structure made of plastic, on which reinforcing ribs for increased strength are integrally formed. To simultaneously engage with the locking grooves 211 on both first rods 21, the locking plate 15 can be designed to be relatively large, and a through hole 151 for the first rods 21 to pass through is added to the locking plate 15. The portion of the locking plate 15 used for engaging with the locking groove 211 can be made of a material with good structural strength and rigidity, such as iron, steel, or hardened ceramics. In the embodiment described in this utility model, a metal plate 152 is fixedly provided on the side of the through hole 151 facing the locking groove 211, so that engagement with the locking groove 211 is achieved through the metal plate 152.

[0078] Furthermore, the headrest body 1 may also include a housing 17, within which the aforementioned headrest frame 14 is fixedly installed. The aforementioned headrest foam 12 is disposed on the housing 17, thus providing a more even support for the headrest foam 12. In addition, a recessed cavity 171 can be provided in the housing 17. This cavity 171 can accommodate additional devices such as speakers and heaters, enabling the adjustable headrest to offer more diverse functions such as music playback and heating. Furthermore, the headrest body 1 also includes a cover plate 172. The cover plate 172 is fixedly positioned over the opening of the cavity 171 to protect the aforementioned additional devices. Simultaneously, the cover plate 172 also provides a more even support for the aforementioned headrest foam 12.

[0079] The headrest body 1 also includes an operation button 18. The operation button 18 is movably mounted on the headrest frame 14, and one end of the operation button 18 is drivenly connected to the locking plate 15. The drive connection between the operation button 18 and the locking plate 15 can be achieved by directly fixing the two together, or by using a connector or transmission assembly. The other end of the operation button 18 extends outside the headrest frame 14 so that the occupant can operate the operation button 18. The operation button 18 is preferably arranged on either side of the adjustable seat headrest in the horizontal direction to prevent the occupant's operating space from being limited when the adjustable seat headrest is adjusted to its lowest position.

[0080] Furthermore, the headrest body 1 described in this embodiment of the present invention also includes a decorative strip 19. The decorative strip 19 can beautify the seams of other structures on the headrest body 1 to improve the visual experience of the occupant. In this embodiment of the present invention, the aforementioned shell 17 specifically includes a first half-shell 173 and a second half-shell 174. Both the first half-shell 173 and the second half-shell 174 are half-shell structures with one open end. During installation, the headrest frame 14 and other structures can be pre-installed on one of the first half-shell 173 and the second half-shell 174, and then the first half-shell 173 and the second half-shell 174 are fixedly fastened together with their openings facing each other to form a complete shell 17. This assembly method is convenient, simple, and easy to operate. Based on this, the decorative strip 19 can be fixedly installed at the fastening seam of the first half-shell 173 and the second half-shell 174 to beautify the fastening seam of the first half-shell 173 and the second half-shell 174.

[0081] This utility model embodiment also provides a vehicle that includes any of the car seats described above.

[0082] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0083] The various embodiments in this specification are described in a related manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. For embodiments concerning automobile seats and vehicles, since they are basically similar to embodiments of adjustable seat headrests, the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0084] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.

Claims

1. An adjustable seat headrest, characterized in that, include: Headrest rod (2), the headrest rod (2) includes a first rod (21); A stabilizing block (13) is provided with a mounting hole (131), and the first rod (21) is installed in the mounting hole (131) and slidably connected to the mounting hole (131); The stabilizing blocks (13) are arranged at intervals along the extension direction of the first rod (21); The headrest frame (14) is fixedly mounted on the headrest frame (14); The stabilizing block (13) is provided with a snap-fit ​​structure (132), and the headrest frame (14) is provided with a mounting groove (141); the stabilizing block (13) is fixedly mounted in the mounting groove (141) by the snap-fit ​​structure (132).

2. The adjustable seat headrest according to claim 1, characterized in that, The first rod (21) is arranged in pairs.

3. The adjustable seat headrest according to claim 2, characterized in that, The headrest rod (2) includes a second rod (22), which is fixedly connected between the pair of first rods (21).

4. The adjustable seat headrest according to claim 3, characterized in that, The second rod (22) is fixedly connected to one end of the first rod (21).

5. The adjustable seat headrest according to claim 4, characterized in that, The first rod (21) and the second rod (22) are integrally formed.

6. The adjustable seat headrest according to claim 4, characterized in that, The second rod (22) is connected to the same end of the pair of first rods (21).

7. The adjustable seat headrest according to claim 3, characterized in that, Both the first rod (21) and the second rod (22) are hollow round tubes.

8. The adjustable seat headrest according to claim 3, characterized in that, The first member (21) includes a first segment and a second segment; the extension directions of the first segment and the second segment intersect; the second member (22) is a straight rod.

9. The adjustable seat headrest according to claim 3, characterized in that, Both the first rod (21) and the second rod (22) are metal rods.

10. The adjustable seat headrest according to claim 1, characterized in that, The adjustable seat headrest also includes a locking plate (15) and a reset elastic element (16). The first rod (21) is provided with a plurality of locking grooves (211), which are spaced apart along the extension direction of the first rod (21); the locking piece (15) is movably mounted on the headrest frame (14), and the movement direction of the locking piece (15) intersects with the extension direction of the first rod (21); the reset elastic member (16) is connected between the locking piece (15) and the headrest frame (14), and is used to provide an elastic holding force to hold the locking piece (15) in the locking groove (211).

11. The adjustable seat headrest according to claim 10, characterized in that, The adjustable seat headrest also includes a housing (17); The headrest frame (14) is fixedly installed inside the housing (17); the housing (17) is provided with a recess (171) that is recessed into the interior of the housing (17).

12. The adjustable seat headrest according to claim 11, characterized in that, The adjustable seat headrest also includes a cover plate (172); the cover plate (172) is fixedly installed at the opening of the cavity (171).

13. The adjustable seat headrest according to claim 10, characterized in that, The adjustable headrest also includes an operation button (18); The operation button (18) is movably mounted on the headrest frame (14). One end of the operation button (18) is connected to the locking plate (15) and the other end of the operation button (18) extends to the outside of the headrest frame (14).

14. A car seat, characterized in that, Includes the adjustable seat headrest as described in any one of claims 1-13.

15. A vehicle, characterized in that, Including the car seat as described in claim 14.

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