Integrated four-way electric headrest, music headrest and heating back cushion

Abstract

The utility model belongs to the field of automobile headrests, and provides an integrated four-way electric headrest, music headrest and heating back cushion, which comprises a headrest main body and an exterior shell, the headrest main body can move relative to the exterior shell, and a headrest support rod is arranged on the exterior shell; the Z-axis driving module is detachably connected to the headrest supporting rod, the Z-axis driving module comprises a sliding seat and a Z-direction sliding block nut, and the sliding seat is movably connected to the headrest body and can reciprocate in the height direction of the headrest supporting rod. Compared with the prior art, the utility model has the advantages that: by arranging elastic buffer structures such as the half-surrounded rubber ring, the first rubber ring and the second rubber ring between key transmission parts, the vibration and noise in the movement process are effectively absorbed, the stability and the mute performance of the whole operation are improved, and especially in an X-axis driving module, the vibration and the noise can be effectively reduced. The buffer gap formed between the first rubber ring and the second rubber ring can adapt to deformation requirements under different working conditions, the impact resistance of the system is improved, and the service life of the system is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of automotive headrests, specifically relating to an integrated four-way electric headrest, a music headrest, and a heated backrest. Background Technology

[0002] The main function of a car seat headrest is to prevent neck injuries to passengers in the vehicle ahead due to inertia during rear-end collisions and other accidents. In a rear-end collision, the head of a passenger will be thrown backward instantly. Without a headrest, this can lead to severe whiplash injuries. A headrest effectively mitigates the enormous impact of the accident, preventing neck injuries caused by excessive head tilting backward.

[0003] Seat headrests come in two types: fixed and movable. Fixed headrests cannot meet the needs of different users and their application is limited. Movable headrests generally only have a single-direction adjustment function. In some headrest structures with multi-directional adjustment, the increased number of parts leads to problems such as loud noise and noticeable vibration during operation. In addition, the manufacturing tolerances of the parts themselves make it easy for errors to accumulate during headrest adjustment, affecting the user experience and shortening the lifespan of the headrest. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing an integrated four-way electric headrest, music headrest, and heated backrest with a simple overall structure, good stability, and effective shock absorption and noise reduction.

[0005] The purpose of this utility model can be achieved through the following technical solution: an integrated four-way electric headrest is proposed, comprising: a headrest body and an outer shell, wherein the headrest body is movable relative to the outer shell, and a headrest support rod is disposed on the outer shell;

[0006] The Z-axis drive module is detachably connected to the headrest support rod. The Z-axis drive module includes a slide block and a Z-axis slider nut. The slide block is movably connected to the headrest body and can reciprocate along the height direction of the headrest support rod. The Z-axis slider nut is connected to the slide block to drive the headrest body to perform lifting and lowering movements.

[0007] An X-axis drive module is mounted on the slide block. The X-axis drive module includes an X-axis slider nut, which is connected to the headrest body to drive the headrest body to move closer to or further away from the outer shell relative to the slide block.

[0008] The contact surfaces between the Z-axis slider nut and the slide block are all covered by the semi-enclosed rubber ring, the first rubber ring, and the second rubber ring. A mounting cavity is formed inside the headrest body. The first rubber ring and the second rubber ring are respectively wrapped around the right angle of the X-axis slider nut and are close to the inner wall of the mounting cavity. A buffer gap is formed between the first rubber ring and the second rubber ring within the mounting cavity.

[0009] In the aforementioned integrated four-way electric headrest, the Z-axis drive module further includes a Z-axis drive motor and a Z-axis lead screw disposed within the outer casing. The output end of the Z-axis drive motor is connected to the Z-axis lead screw, and the Z-axis slider nut is movably connected to the Z-axis lead screw to drive the slide to move up and down along the axis of the Z-axis lead screw.

[0010] In the aforementioned integrated four-way electric headrest, the X-axis drive module further includes an X-axis drive motor and an X-axis lead screw. The X-axis drive motor is mounted on the slide block, and the output end of the X-axis drive motor is connected to the X-axis lead screw. The X-axis slider nut is movably connected to the X-axis lead screw to drive the headrest body closer to or away from the outer shell.

[0011] In the aforementioned integrated four-way electric headrest, a headrest frame is provided inside the headrest body, and a protective sheet metal is detachably connected inside the headrest frame. The protective sheet metal is used to restrict the X-axis lead screw from passing through the headrest frame.

[0012] In the aforementioned integrated four-way electric headrest, the headrest frame is equipped with an X-axis guide post, the outer shell is equipped with a Z-axis guide post, and the slide has several guide holes for the X-axis guide post and the Z-axis guide post to be movably inserted.

[0013] In the aforementioned integrated four-way electric headrest, the slide is provided with several fixing sleeves, which are fitted onto the X-axis guide post and the Z-axis guide post to eliminate manufacturing gaps.

[0014] In the aforementioned integrated four-way electric headrest, a number of snap-on ends are provided around the periphery of the headrest frame, and the headrest body also includes a cover with snap-on plates. The snap-on plates have snap-on holes, which are movably engaged with the snap-on ends to restrict the movement of the cover relative to the headrest frame.

[0015] In the aforementioned integrated four-way electric headrest, the headrest body is further provided with a cover plate, the outer shell is provided with a decorative plate, the cover plate is provided with a Z-axis slider, the decorative plate is provided with a Z-axis slide rail and an X-axis slider, the bottom of the slide base is connected to a mounting sheet metal, the bottom of the mounting sheet metal is provided with an X-axis slide rail, the Z-axis slider is movably engaged with the Z-axis slide rail, and the X-axis slider is movably engaged with the X-axis slide rail.

[0016] The technical solution adopted by this utility model to solve its technical problem is to also propose a music headrest, including an integrated four-way electric headrest as described above, and also including a speaker installed in the headrest body.

[0017] The technical solution adopted by this utility model to solve its technical problem is to also propose a heated backrest pillow, including an integrated four-way electric headrest as described above, and a backrest end four-hook fastener. The headrest body is provided with a headrest end four-hook fastener at the lower end, and the headrest end four-hook fastener and the backrest end four-hook fastener are connected by a wire harness.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) The present invention provides an integrated four-way electric headrest, music headrest and heated backrest. Through the combination design of Z-axis drive module and X-axis drive module, the headrest body can be adjusted in the Z-axis and independently adjusted in the X-axis. The integrated structure facilitates smooth and precise linear motion control. At the same time, by setting semi-enclosed rubber rings, first rubber rings and second rubber rings and other elastic buffer structures between key transmission components, vibration and noise during the movement are effectively absorbed, improving the overall smoothness and quietness of operation. In particular, in the X-axis drive module, the buffer gap formed between the first rubber ring and the second rubber ring can adapt to the deformation requirements under different working conditions, and enhance the impact resistance and service life of the system.

[0020] (2) The detachable protective sheet metal is not only conducive to the manufacturing and molding of the headrest frame, and convenient for subsequent maintenance and replacement, but also prevents the X-axis lead screw from deviating or bending during the movement, ensuring that it is always in the correct axis position, providing a stable guide path for the headrest body, and reducing friction and noise caused by movement deviation.

[0021] (3) The fixed sleeve tightly covers the guide column, eliminating the sliding instability caused by processing errors or assembly gaps, and significantly improving the linearity and repeatability of the headrest adjustment process; at the same time, the flexible contact can buffer the small vibrations during the sliding process, reduce friction noise, and make the headrest adjustment more stable and smooth. Attached Figure Description

[0022] Figure 1 This is a perspective view of this application;

[0023] Figure 2 yes Figure 1 A cross-sectional schematic diagram;

[0024] Figure 3 This is a schematic diagram of the installation structure of the Z-axis drive module;

[0025] Figure 4 yes Figure 2 Enlarged view of section A in the image;

[0026] Figure 5 This is an exploded view of the Z-axis drive motor, the Z-axis slider nut, and the slide block;

[0027] Figure 6 This is a schematic diagram of the mounting structure supporting the sheet metal at the front end of the X-axis drive motor;

[0028] Figure 7 This is a schematic diagram of the installation structure of the speaker and the clip-on end within the headrest frame;

[0029] Figure 8 This is a schematic diagram of the mounting structure of the clip holes on the clip plate.

[0030] In the diagram, 1. Headrest body; 10. Mounting cavity; 11. Headrest frame; 110. Protective sheet metal; 111. Snap-on end; 112. Rubber assembly part; 113. Cover; 114. Snap-on groove; 12. X-axis guide post; 13. Face cover; 130. Snap-on plate; 130a. Snap-on hole; 14. Cover plate; 140. Z-axis slider; 15. Speaker; 16. Headrest end snap fastener; 17. Assembly plate;

[0031] 2. Exterior housing; 20. Headrest support rod; 21. Z-axis guide column; 22. Decorative panel; 220. Z-axis slide rail; 221. X-axis slider; 23. Positioning pin;

[0032] 3. Z-axis drive module; 30. Slide block; 300. Guide hole; 301. Fixing sleeve; 302. Mounting sheet metal; 303. X-axis slide rail; 31. Z-axis slider nut; 32. Z-axis drive motor; 33. Z-axis lead screw; 34. Soft rubber pad;

[0033] 4. X-axis drive module; 40. X-axis slider nut; 41. X-axis drive motor; 42. X-axis lead screw; 43. Support sheet metal;

[0034] 50. Semi-enclosed rubber ring; 500. Side wall covering part; 501. Arc-shaped covering part; 502. Clearance opening; 51. First rubber ring; 52. Second rubber ring; 530. Buffer gap. Detailed Implementation

[0035] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0036] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly. Example 1:

[0037] like Figures 1 to 8 As shown, an integrated four-way electric headrest includes: a headrest body 1, an outer shell 2, a Z-axis drive module 3, an X-axis drive module 4, a semi-enclosed rubber ring 50, a first rubber ring 51, and a second rubber ring 52.

[0038] The headrest body 1 is movable relative to the outer shell 2, and the outer shell 2 is equipped with a headrest support rod 20. A Z-axis drive module 3 is detachably connected to the headrest support rod 20. The Z-axis drive module 3 includes a slide block 30 and a Z-axis slider nut 31. The slide block 30 is movably connected to the headrest body 1 and can reciprocate along the height direction of the headrest support rod 20. The Z-axis slider nut 31 is connected to the slide block 30 to drive the headrest body 1 to move up and down. An X-axis drive module 4 is mounted on the slide block 30 and includes an X-axis slider nut 40. The slider nut 40 is connected to the headrest body 1 so that the headrest body 1 moves closer to or further away from the outer shell 2 when it moves relative to the slide block 30; the contact surfaces between the Z-axis slider nut 31 and the slide block 30 are all covered by semi-enclosed rubber rings 50; an installation cavity 10 is formed inside the headrest body 1, and the first rubber ring 51 and the second rubber ring 52 respectively cover the right angle of the X-axis slider nut 40 and are close to the inner wall of the installation cavity 10, and a buffer gap 530 is formed between the first rubber ring 51 and the second rubber ring 52 located in the installation cavity 10.

[0039] Specifically, the function of the headrest body 1 is to provide support for the head of the passenger in the car, such as... Figure 1 and Figure 2 As shown, when the user adjusts the height of the headrest body 1 according to the control panel, the Z-axis drive module 3 starts to rotate, which drives the Z-axis slider nut 31 to move vertically. Since the slider nut is fixedly connected to the slide block 30, and the headrest body 1 is movably connected to the slide block 30, the movement of the slide block 30 will inevitably cause the headrest body 1 to rise or fall together, thus realizing the vertical movement of the headrest body 1 (i.e., Figure 2The adjustment is shown in the Z-axis direction. Similarly, when the headrest body 1 needs to be "moved forward" or "moved backward", the X-axis drive module 4 can drive the X-axis slider nut 40 to move horizontally, thereby directly driving the headrest body 1 to achieve the corresponding adjustment function. It is worth noting that in this embodiment, by integrating the Z-axis drive module 3 and the X-axis drive module 4 on the slide block 30, the headrest body 1 is realized to achieve linkage adjustment in the Z-axis and independent adjustment in the X-axis. The integrated structure facilitates smooth and precise linear motion control. For this reason, in this embodiment, a semi-enclosed rubber ring 50 is used to cover the contact surface between the Z-axis slider nut 31 and the slide block 30. At the same time, the first rubber ring 51 and the second rubber ring 52 are respectively covered at the right angle of the X-axis slider nut 40 and are close to the inner wall of the mounting cavity 10. In this way, the headrest body 1 can move horizontally along the Z-axis direction. Figure 2 During the Z-axis or X-axis adjustment process, vibrations and noise during movement can be effectively absorbed, improving the overall stability and quietness of operation. Especially in the X-axis drive module 4, the buffer gap 530 formed between the first rubber ring 51 and the second rubber ring 52 can adapt to deformation requirements under different working conditions, enhancing the system's impact resistance and service life. Therefore, with the semi-enclosed rubber ring 50 and the combined use of the two rubber rings, whether the headrest body 1 is adjusted along the X-axis or Z-axis, the accumulation of adjustment errors between components can be effectively eliminated, providing a more efficient, stable, accurate, and comfortable head support adjustment function, possessing good market application prospects and user experience value. Preferably, this embodiment also includes a positioning pin 23 on the outer shell 2 for aligning and installing the four-way electric headrest, ensuring the smoothness and accuracy of the headrest body 1's installation position.

[0040] It should be noted that, as Figure 5 As shown, the semi-enclosed rubber ring 50 in this embodiment consists of a side wall covering part 500 and an arc-shaped covering part 501 connecting its two ends. The overall structure is modeled after the outer wall of the Z-direction slider nut 31 to ensure that there is no gap between the Z-direction slider nut 31 and the slide block 30, avoiding unnecessary shaking or displacement during operation. An avoidance opening 502 is formed between the arc-shaped covering part 501 and the semi-enclosed rubber ring 50. The avoidance opening 502 allows the Z-direction lead screw 33 to pass through, and also facilitates the quick assembly and disassembly of the semi-enclosed rubber ring 50, the Z-direction slider nut 31, and the slide block 30, providing convenience for workers.

[0041] The Z-axis drive module 3 also includes a Z-axis drive motor 32 and a Z-axis lead screw 33 disposed in the outer casing 2. The output end of the Z-axis drive motor 32 is connected to the Z-axis lead screw 33, and the Z-axis slider nut 31 is movably connected to the Z-axis lead screw 33 to drive the slide block 30 to move up and down along the axis of the Z-axis lead screw 33.

[0042] like Figure 2 , Figure 3 as well as Figure 5 As shown, in this embodiment, the power source for the lifting and lowering adjustment of the headrest body 1 in the Z-axis direction mainly relies on the Z-axis drive motor 32. The output end of the Z-axis drive motor 32 can be connected to the Z-axis lead screw 33 through a coupling or reduction gear, thereby converting the rotational motion of the Z-axis lead screw 33 into the linear motion of the Z-axis slider nut 31 along the axis of the Z-axis lead screw 33. This structure is relatively simple overall, facilitating subsequent maintenance and replacement, while also ensuring smooth and non-deviation-free lifting and lowering. Preferably, as Figure 3 As shown, in this embodiment, a soft rubber pad 34 for eliminating abnormal noise can also be provided at the bottom of the Z-axis drive motor 32.

[0043] The X-axis drive module 4 also includes an X-axis drive motor 41 and an X-axis lead screw 42. The X-axis drive motor 41 is mounted on the slide block 30, and the output end of the X-axis drive motor 41 is connected to the X-axis lead screw 42. The X-axis slider nut 40 is movably connected to the X-axis lead screw 42 to drive the headrest body 1 closer to or away from the outer shell 2.

[0044] like Figure 2 and Figure 6 As shown, it should be noted that the structure and working principle of each component of the X-axis drive module 4 in this embodiment are the same as those of the Z-axis drive module 3, and will not be described in detail here. That is, this drive module (i.e., the lead screw and nut pair in the machine) has high transmission accuracy. With the design of the semi-enclosed rubber ring 50, the first rubber ring 51 and the second rubber ring 52, it can reduce vibration and noise while also meeting the personalized adjustment needs of the headrest body 1. The difference is that the X-axis drive module 4 in this embodiment is integrated on the slide 30, so that along the slide 30... Figure 2 During the lifting and lowering process shown in the Z-axis direction, the X-axis drive module 4 can move synchronously, and then the distance between the headrest body 1 and the outer shell 2 can be adjusted (i.e., front and back adjustment) based on this position through the X-axis drive module 4.

[0045] Preferably, such as Figure 2 and Figure 6 As shown, in this embodiment, a support sheet metal 43 is also installed at the front end of the X-axis drive motor 41 by screws. The support sheet metal 43 is used to enhance the front and rear connection strength of the structure, prevent the structure from falling off and causing the X-axis lead screw 42 to tilt, and also ensure the stability of the headrest body 1 when adjusting back and forth in the X-axis direction, and play a role in shock absorption and noise reduction.

[0046] More preferably, such as Figure 2 and Figure 6As shown, this embodiment also has a rubber assembly part 112 formed on the headrest frame 11. The rubber assembly part 112 is used to form the above-mentioned mounting cavity 10. After the first rubber ring 51 and the second rubber ring 52 are both fitted on the X-axis slider nut 40, the first rubber ring 51 and the second rubber ring 52 can be fixed by the cover 113 using screws and other components. This structure further plays a buffering role in the process of the X-axis drive module 4 driving the headrest body 1 to move forward or backward, avoiding abnormal noise or even jamming due to large mechanical vibration.

[0047] The headrest frame 11 is equipped with an X-axis guide post 12, and the outer shell 2 is equipped with a Z-axis guide post 21. The slide 30 has several guide holes 300 for the X-axis guide post 12 and the Z-axis guide post 21 to be inserted movably.

[0048] Furthermore, such as Figure 3 and Figure 7 As shown, since both the X-axis drive module 4 and the Z-axis drive module 3 in this embodiment are integrated on the slide block 30, guide holes 300 in the Z-axis and X-axis directions are provided on the slide block 30. During the movement of the Z-axis drive motor 32 along the Z-axis lead screw 33, the slide block 30 can form a stable guide path through the movable cooperation between the Z-axis guide post 21 and the guide hole 300, effectively preventing lateral swaying or rotation of the slide block 30 during lifting and lowering, thus improving operational stability. Similarly, the cooperation between the X-axis guide post 12 and the guide hole 300 provides lateral (i.e., X-axis) guiding force to the headrest body 1, preventing it from jamming, tilting, or even shaking when moving closer to or away from the outer shell 2. This enhances the headrest structure's vibration resistance and durability, providing a solid technical guarantee for realizing intelligent and comfortable seat adjustment functions. Preferably, in this embodiment, sheet metal is welded to the top and bottom of the Z-axis guide column, which is used for the installation of the X-axis slide rail and the positioning pin.

[0049] Preferably, such as Figure 3 As shown, this embodiment also has several fixing sleeves 301 on the slide 30. These fixing sleeves 301 eliminate swaying and vibration, improving user comfort during use, especially suitable for high-end seats that require frequent adjustments. Furthermore, the buffering effect of the fixing sleeves 301 reduces direct friction between metal parts, lowers the wear rate, and extends the service life of the guide system. In this embodiment, the fixing sleeves 301 are fitted onto the X-axis guide post 12 and the Z-axis guide post 21, effectively compensating for manufacturing errors and assembly gaps, ensuring that the headrest body 1 maintains a high-precision movement trajectory during adjustment.

[0050] The headrest body 1 is provided with a headrest frame 11, and a protective sheet metal 110 is detachably connected inside the headrest frame 11. The protective sheet metal 110 is used to restrict the X-direction lead screw 42 from passing through the headrest frame 11.

[0051] More preferably, such as Figure 2 and Figure 7 As shown, in this embodiment, all four X-axis guide pillars 12 are connected to the headrest frame 11 by screws or bolts. It is worth noting that the headrest frame 11 in this embodiment is not integrally injection molded. By providing a detachable protective sheet metal 110 on the headrest frame 11, it is convenient to manufacture the headrest frame 11 and ensures that the headrest support rod 20 moves along the... Figure 2 The smoothness and stability of the X-axis relative to the outer shell 2 when moving closer or further away effectively prevent abnormal noises or even jamming of the X-axis lead screw 42 due to displacement or shaking. Furthermore, to simplify the overall assembly operation, the protective sheet metal 110 and the X-axis guide post 12 in this embodiment can be installed within the headrest frame 11 using the same screw or similar component, improving assembly efficiency and providing convenience for subsequent maintenance and replacement.

[0052] The headrest frame 11 has several snap-on ends 111 around its perimeter. The headrest body 1 also includes a cover 13 with a snap-on plate 130. The snap-on plate 130 has snap-on holes 130a, which are movably snapped onto the snap-on ends 111 to restrict the cover 13 from moving relative to the headrest frame 11.

[0053] like Figure 7 and Figure 8 As shown, during normal use, the headrest body 1 will be subjected to multi-directional forces due to adjustment movements or pressure from the human head. At this time, the mechanical interlocking structure between the buckle end 111 and the buckle hole 130a effectively prevents the cover 13 from sliding, shifting or falling off relative to the headrest frame 11. The modular quick-release design greatly reduces maintenance costs and time, and improves product maintainability.

[0054] The headrest body 1 is also provided with a cover plate 14, the outer shell 2 is provided with a decorative plate 22, the cover plate 14 is provided with a Z-axis slider 140, the decorative plate 22 is provided with a Z-axis slide rail 220 and an X-axis slider 221, the bottom of the slide base 30 is connected to a mounting sheet metal 302, the bottom of the mounting sheet metal 302 is provided with an X-axis slide rail 303, the Z-axis slider 140 is movably engaged with the Z-axis slide rail 220, and the X-axis slider 221 is movably engaged with the X-axis slide rail 303.

[0055] like Figure 3 and Figure 6 As shown, when the Z-axis drive motor 32 drives the Z-axis lead screw 33 to rotate, the headrest body 1 moves along the Z-axis through the cooperation of the Z-axis slider nut 31 and the slide block 30. Figure 2When the headrest body 1 moves up and down along the Z-axis, the Z-axis slider 140 on the cover plate 14 and the Z-axis slide rail 220 on the decorative plate 22 engage to ensure smooth up and down movement along the Z-axis, preventing swaying or jamming. This ensures that the headrest body 1 moves without shaking throughout its movement, improving user comfort. Similarly, when the X-axis drive motor 41 rotates the X-axis lead screw 42, the X-axis slider nut 40 drives the headrest body 1 to move along the Z-axis... Figure 2 During the forward or backward movement along the X-axis, the slide block 30, mounting sheet metal 302, and X-axis slide rail 303 remain stationary. Since the decorative panel 22 is movably connected to the headrest body 1 via the aforementioned Z-axis slide rail 220 and Z-axis slider 140, it guides the headrest body 1 to slide freely along the X-axis during the movement of the X-axis slider 221 relative to the X-axis slide rail 303, while simultaneously restricting its vertical or tilt displacement. Therefore, the dual-axis slider / slide rail system provides a precise guiding path, avoiding adjustment errors caused by structural loosening, meeting the precision requirements of high-end seats, and exhibiting good contact rigidity and shock absorption performance between the slider and slide rail, reducing fatigue damage during long-term use. Example 2:

[0056] This second embodiment, based on the first embodiment, provides a music headrest, including a speaker 15 installed within the headrest body 1. The speaker 15 is used for music playback and can be detachably installed within the headrest body 1 using screws, bolts, or other components. This allows the user to receive audio signals through vibration and air transmission when leaning against the headrest body 1, achieving a private, comfortable, and immersive listening experience. Of course, this structure is not only suitable for car seats but can also be applied to office chairs, massage chairs, and other scenarios. Example 3:

[0057] This third embodiment, based on either embodiment one or two, or a combination of both, further provides a heated backrest pillow. The heated backrest pillow includes a backrest end snap fastener, and a headrest end snap fastener 16 is provided at the lower end of the headrest body 1. The headrest end snap fastener 16 and the backrest end snap fastener are connected via a wiring harness. That is, the metal contacts in the snap fasteners make contact with each other to form a complete current loop. Because the snap fasteners have good conductivity, low-resistance, high-efficiency energy transmission can be achieved, ensuring rapid heating response. Furthermore, the integrated quick-release design eliminates the need for additional power cord plugging and unplugging, making operation simple and quick, suitable for frequent usage scenarios. It should be noted that this snap fastener structure is the same as the structure used in existing headrests, and will not be described in detail here. Preferably, in this embodiment, several headrest end snap fasteners 16 (four in this embodiment) are connected to the same assembly plate 17. A locking groove 114 is formed at the bottom end of the headrest frame 11. Therefore, both ends of the assembly plate 17 can be simultaneously locked into the locking groove 114 and connected to the headrest frame 11, ensuring the stability of the headrest end snap fasteners 17, simplifying the overall assembly and disassembly operation, and bringing great convenience to subsequent maintenance and replacement.

[0058] It should be noted that the Z-axis drive motor 32 and X-axis drive motor 41 in this embodiment can be replaced by other drive devices such as stepper motors and servo motors.

[0059] It should be noted that in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly defined. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0060] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0061] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An integrated four-way power headrest, characterized by, include: The headrest body and the outer shell are movable relative to the outer shell, and the outer shell is provided with a headrest support rod; The Z-axis drive module is detachably connected to the headrest support rod. The Z-axis drive module includes a slide block and a Z-axis slider nut. The slide block is movably connected to the headrest body and can reciprocate along the height direction of the headrest support rod. The Z-axis slider nut is connected to the slide block to drive the headrest body to perform lifting and lowering movements. An X-axis drive module is mounted on the slide block. The X-axis drive module includes an X-axis slider nut, which is connected to the headrest body to drive the headrest body to move closer to or further away from the outer shell relative to the slide block. The contact surfaces between the Z-axis slider nut and the slide block are all covered by the semi-enclosed rubber ring, the first rubber ring, and the second rubber ring. A mounting cavity is formed inside the headrest body. The first rubber ring and the second rubber ring are respectively wrapped around the right angle of the X-axis slider nut and are close to the inner wall of the mounting cavity. A buffer gap is formed between the first rubber ring and the second rubber ring within the mounting cavity.

2. The integrated four-way electric headrest of claim 1, wherein, The Z-axis drive module also includes a Z-axis drive motor and a Z-axis lead screw disposed in the outer casing. The output end of the Z-axis drive motor is connected to the Z-axis lead screw, and the Z-axis slider nut is movably connected to the Z-axis lead screw to drive the slide to move up and down along the axis of the Z-axis lead screw.

3. The integrated four-way electric headrest of claim 1, wherein, The X-axis drive module also includes an X-axis drive motor and an X-axis lead screw. The X-axis drive motor is mounted on the slide block, and the output end of the X-axis drive motor is connected to the X-axis lead screw. The X-axis slider nut is movably connected to the X-axis lead screw to drive the headrest body closer to or away from the outer shell.

4. The integrated four-way electric headrest of claim 3, wherein, The headrest body is provided with a headrest frame, and a protective sheet metal is detachably connected to the headrest frame. The protective sheet metal is used to restrict the X-axis lead screw from passing through the headrest frame.

5. The integrated four-way electric headrest of claim 4, wherein, The headrest frame is equipped with an X-axis guide post, the outer shell is equipped with a Z-axis guide post, and the slide has several guide holes for the X-axis guide post and the Z-axis guide post to be movably inserted.

6. The integrated four-way electric headrest of claim 5, wherein, The slide block is provided with several fixing sleeves, which are fitted onto the X-axis guide post and the Z-axis guide post to eliminate manufacturing gaps.

7. The integrated four-way power headrest of claim 4, wherein, The headrest frame has several snap-on ends around its perimeter. The headrest body also includes a cover with snap-on plates. The snap-on plates have snap-on holes that are movably engaged with the snap-on ends to restrict the cover from moving relative to the headrest frame.

8. The integrated four-way power headrest of claim 7, wherein, The headrest body is also provided with a cover plate, the outer shell is provided with a decorative plate, the cover plate is provided with a Z-axis slider, the decorative plate is provided with a Z-axis slide rail and an X-axis slider, the bottom of the slide is connected to a mounting sheet metal, the bottom of the mounting sheet metal is provided with an X-axis slide rail, the Z-axis slider is movably engaged with the Z-axis slide rail, and the X-axis slider is movably engaged with the X-axis slide rail.

9. A music headrest, characterized by, The integrated four-way electric headrest, as described in any one of claims 1-8, further includes a speaker installed within the headrest body.

10. A heated headrest, characterized by The integrated four-way electric headrest, including any one of claims 1-9, further includes a headrest end snap fastener, the lower end of the headrest body is provided with a headrest end snap fastener, and the headrest end snap fastener and the headrest end snap fastener are connected by a wire harness.

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