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

Abstract

The invention 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 body and an exterior shell, the headrest body can move relative to the exterior shell, and a headrest supporting 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 shock absorber has the advantages that elastic buffer structures such as the half-surrounding rubber ring, the first rubber ring and the second rubber ring are arranged between key transmission parts, vibration and noise in the movement process are effectively absorbed, the stability and the mute performance of overall operation are improved, and particularly in an X-axis driving module, the shock absorber can effectively absorb the shock and noise in the X-axis driving module. 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] The invention belongs to the field of automobile headrests, and in particular relates to an integrated four-way electric headrest, a music headrest and a heating pillow. Background Art

[0002] The primary function of a seat headrest is to protect the cervical spine of passengers in the vehicle ahead from inertial injuries in the event of a rear-end collision. In a rear-end collision, the occupant's head is instantly thrown backward. Without a headrest, severe whiplash injuries can result. A headrest effectively mitigates the immense impact of an accident and prevents neck injuries caused by excessive backward tilt of the head.

[0003] Seat safety headrests are divided into two types: fixed and movable. Among them, fixed seat safety headrests cannot meet the usage needs of different users and their scope of use is subject to certain limitations; the movable type generally only has an adjustment function in a single direction. In some seat safety headrest structures with multi-directional adjustment functions, due to the increase in the number of components, there are problems such as loud noise and obvious vibration during operation. In addition, due to the manufacturing tolerances of the components themselves, the headrest position is prone to accumulation of errors during the adjustment process, which not only affects the user experience, but also easily shortens the service life of the headrest. Summary of the Invention

[0004] The purpose of the present invention is to address the above-mentioned problems in the prior art and to propose an integrated four-way electric headrest, music headrest and heated pillow with a simple overall structure, good stability and effective shock absorption and noise reduction.

[0005] The object of the present invention can be achieved by the following technical solutions, which provide an integrated four-way electric headrest, comprising: a headrest body and an outer shell, wherein the headrest body can move relative to the outer shell, and the outer shell is provided with a headrest support rod; a Z-axis drive module detachably connected to the headrest support rod, the Z-axis drive module comprising a slide and a Z-direction slider nut; the slide being movably connected to the headrest body and capable of reciprocating along the height direction of the headrest support rod; the Z-direction slider nut being connected to the slide to drive the headrest body to perform lifting motion; An X-axis drive module is disposed on the slide, the X-axis drive module including an X-direction slider nut connected to the headrest body to drive the headrest body to move closer to or away from the exterior shell when moving relative to the slide; A semi-enclosed rubber ring, a first rubber ring, and a second rubber ring, wherein the contact surface between the Z-direction slider nut and the slide seat is covered by the semi-enclosed rubber ring; a mounting cavity is formed in the headrest body, the first rubber ring and the second rubber ring are respectively covered at right angles to the X-direction slider nut and adhere to the inner wall of the mounting cavity, and a buffer gap is formed between the first rubber ring and the second rubber ring within the mounting cavity.

[0006] In the above-mentioned integrated four-way electric headrest, the Z-axis drive module also includes a Z-axis drive motor and a Z-axis screw rod arranged in the exterior shell, the output end of the Z-axis drive motor is connected to the Z-axis screw rod, and the Z-axis slider nut is movably connected to the Z-axis screw rod to drive the slide to move up and down along the axis direction of the Z-axis screw rod.

[0007] In the above-mentioned integrated four-way electric headrest, the X-axis drive module also includes an X-axis drive motor and an X-axis screw rod. The X-axis drive motor is installed on the slide, and the output end of the X-axis drive motor is connected to the X-axis screw rod. The X-axis slider nut is movably connected to the X-axis screw rod to drive the headrest body closer to or away from the exterior shell.

[0008] In the above-mentioned integrated four-way electric headrest, a headrest frame is provided in the headrest body, and a protective sheet metal is detachably connected to the headrest frame. The protective sheet metal is used to restrict the X-axis screw rod from passing through the headrest frame.

[0009] In the above-mentioned integrated four-way electric headrest, the headrest frame is installed with an X-axis guide column, the exterior shell is installed with a Z-axis guide column, and the slide seat is provided with a plurality of guide holes for the X-axis guide column and the Z-axis guide column to be movably inserted.

[0010] In the above-mentioned integrated four-way electric headrest, a plurality of fixing sleeves are provided on the slide seat, and the fixing sleeves are provided on the X-axis guide column and the Z-axis guide column to eliminate manufacturing gaps.

[0011] In the above-mentioned integrated four-way electric headrest, a plurality of snap ends are provided at the periphery of the headrest frame, and the headrest body also includes a face cover equipped with a snap plate, and a snap hole is provided in the snap plate, and the snap hole is movably fastened to the snap end to limit the movement of the face cover relative to the headrest frame.

[0012] In the above-mentioned integrated four-way electric headrest, a cover plate is also provided on the headrest body, a decorative panel is provided on the exterior shell, a Z-axis slider is provided on the cover plate, a Z-axis slide rail and an X-axis slider are provided on the decorative panel, a mounting sheet metal is connected to the bottom of the slide seat, an X-axis slide rail is provided at the bottom of the mounting sheet metal, the Z-axis slider is movably connected to the Z-axis slide rail, and the X-axis slider is movably connected to the X-axis slide rail.

[0013] The technical solution adopted by the present invention to solve the technical problem is to provide a music headrest, which includes the above-mentioned integrated four-way electric headrest and a speaker installed in the headrest body.

[0014] The technical solution adopted by the present invention to solve its technical problems is to also propose a heated pillow, including an integrated four-way electric headrest as mentioned above, and also including a pillow end snap, a headrest end snap is provided at the lower end of the headrest body, and the headrest end snap is connected to the pillow end snap via a wiring harness.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) The present invention provides an integrated four-way electric headrest, music headrest and heated pillow. The headrest body can be adjusted in a linked manner in the Z direction and independently adjusted in the X direction by combining a Z-axis drive module and an X-axis drive module. The integrated structure facilitates smooth and precise linear motion control. At the same time, elastic buffer structures such as a semi-enclosed rubber ring, a first rubber ring and a second rubber ring are provided between key transmission components to effectively absorb vibration and noise during the motion process, thereby improving the overall operational stability and quietness. 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, thereby enhancing the system's impact resistance and service life.

[0017] (2) The removable protective sheet metal is not only conducive to the manufacturing and forming of the headrest frame and convenient for subsequent maintenance and replacement, but also can prevent the X-axis screw from deflecting or bending during movement, ensuring that it is always in the correct axial position, providing a stable guide path for the headrest body, and reducing friction and noise caused by movement deviation.

[0018] (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 during adjustment. At the same time, the flexible contact can buffer the tiny vibrations during the sliding process, reduce friction noise, and make the headrest adjustment more stable and smooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a perspective view of the present application; Figure 2 yes Figure 1 Schematic cross-section diagram of ; Figure 3 This is a schematic diagram of the installation structure of the Z-axis drive module; Figure 4 yes Figure 2 A local enlarged view of point A in FIG; Figure 5 This is an exploded view of the Z-axis drive motor, Z-slider nut, and slide. Figure 6 This is a schematic diagram of the installation structure supporting the sheet metal at the front end of the X-axis drive motor; Figure 7 This is a schematic diagram of the installation structure of the speaker and the clip end in the headrest frame; Figure 8 It is a schematic diagram of the installation structure of the snap hole on the snap plate.

[0020] In the figure, 1, headrest body; 10, mounting cavity; 11, headrest frame; 110, protective sheet metal; 111, buckle end; 112, rubber assembly portion; 113, cover; 114, snap groove; 12, X-axis guide column; 13, face cover; 130, snap plate; 130a, buckle hole; 14, cover plate; 140, Z-axis slider; 15, speaker; 16, headrest end snap; 17, assembly plate; 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; 3. Z-axis drive module; 30. Slide; 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 screw; 34. Soft rubber pad; 4. X-axis drive module; 40. X-axis slider nut; 41. X-axis drive motor; 42. X-axis screw; 43. Support sheet metal; 50. Semi-enclosed rubber ring; 500. Side wall covering portion; 501. Arc-shaped covering portion; 502. Avoidance opening; 51. First rubber ring; 52. Second rubber ring; 530. Buffer gap. DETAILED DESCRIPTION

[0021] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0022] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. Example 1:

[0023] like Figures 1 to 8 As shown, an integrated four-way electric headrest includes: a headrest body 1, an exterior 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.

[0024] Among them, the headrest body 1 can move relative to the exterior shell 2, and the exterior shell 2 is provided with a headrest support rod 20; the Z-axis drive module 3 is detachably connected to the headrest support rod 20, and the Z-axis drive module 3 includes a slide 30 and a Z-direction slider nut 31. The slide 30 is movably connected to the headrest body 1 and can reciprocate along the height direction of the headrest support rod 20. The Z-direction slider nut 31 is connected to the slide 30 to drive the headrest body 1 to move up and down; the X-axis drive module 4 is set on the slide 30, and the X-axis drive module 4 includes an X-direction slider nut 40, X The Z-axis slider nut 40 is connected to the headrest body 1 to drive the headrest body 1 to move closer to or away from the exterior shell 2 relative to the slide 30; the contact surfaces between the Z-axis slider nut 31 and the slide 30 are both covered by a semi-enclosed rubber ring 50; an installation cavity 10 is formed in the headrest body 1, and a first rubber ring 51 and a second rubber ring 52 are respectively covered at right angles to the X-axis slider nut 40 and tightly attached 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 within the installation cavity 10.

[0025] Specifically, the function of the headrest body 1 is to provide support for the brain of the passenger in the car. 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 driving module 3 starts to rotate and drives the Z-direction slider nut 31 to move in the vertical direction. Since the slider nut is fixedly connected to the slide 30, and the headrest body 1 is movably connected to the slide 30, the movement of the slide 30 will inevitably drive the headrest body 1 to rise or fall together, thereby achieving the vertical direction (i.e. Figure 2, and the Z-axis direction is adjusted accordingly. Figure 2 During both the Z-axis and X-axis adjustment processes, the system effectively absorbs vibration and noise, improving overall operational smoothness and quietness. In particular, the buffer gap 530 formed between the first rubber ring 51 and the second rubber ring 52 in the X-axis drive module 4 adapts to deformation requirements under different operating conditions, enhancing the system's impact resistance and service life. Furthermore, the combined use of the semi-enclosed rubber ring 50 and two rubber rings effectively eliminates component adjustment errors, whether adjusting the headrest body 1 along the X-axis or Z-axis. This provides a more efficient, smooth, accurate, and comfortable head support adjustment function, promising market application prospects and user experience. Preferably, this embodiment also includes locating pins 23 on the exterior housing 2 for alignment of the four-way electric headrest, ensuring smooth and accurate installation of the headrest body 1.

[0026] It should be noted that if Figure 5 As shown, the semi-enclosed rubber ring 50 in this embodiment is composed of a side wall covering portion 500 and an arc-shaped covering portion 501 connecting the two ends thereof. The overall structure is contoured to 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 seat 30, avoiding unnecessary shaking or deviation during operation. An avoidance opening 502 is formed between the arc-shaped covering portion 501 and the semi-enclosed rubber ring 50. On the one hand, the avoidance opening 502 can allow the Z-direction screw rod 33 to pass through. On the other hand, it helps to quickly assemble and disassemble the semi-enclosed rubber ring 50, the Z-direction slider nut 31 and the slide seat 30, providing convenience for workers when operating.

[0027] The Z-axis drive module 3 also includes a Z-axis drive motor 32 and a Z-direction screw rod 33 arranged in the exterior shell 2. The output end of the Z-axis drive motor 32 is connected to the Z-direction screw rod 33, and the Z-direction slider nut 31 is movably connected to the Z-direction screw rod 33 to drive the slide 30 to move up and down along the axis direction of the Z-direction screw rod 33.

[0028] 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 screw 33 through a coupling or a reduction gear, thereby converting the rotational motion of the Z-axis screw 33 into the linear motion of the Z-axis slider nut 31 along the axis of the Z-axis screw 33. The overall structure is relatively simple, which is convenient for subsequent maintenance and replacement, and also ensures that the lifting process is smooth and does not deviate. 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.

[0029] The X-axis drive module 4 also includes an X-axis drive motor 41 and an X-axis screw rod 42. The X-axis drive motor 41 is installed on the slide 30. The output end of the X-axis drive motor 41 is connected to the X-axis screw rod 42. The X-axis slider nut 40 is movably connected to the X-axis screw rod 42 to drive the headrest body 1 to move closer to or away from the exterior shell 2.

[0030] 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 screw-nut pair in the machine) has a high transmission accuracy. In conjunction with the design of the semi-enclosed rubber ring 50, the first rubber ring 51, and the second rubber ring 52, it not only reduces vibration and noise, but also meets the personalized adjustment requirements 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 when the slide 30 moves along the Figure 2 The Z-axis direction lifting process can drive the X-axis driving module 4 to move synchronously, and then the distance between the headrest body 1 and the exterior shell 2 can be further adjusted (i.e., front and rear adjustment) through the X-axis driving module 4 based on this position.

[0031] Preferably, if 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 to avoid the structure falling off and causing the X-axis screw rod 42 to tilt. At the same time, it also ensures the stability of the headrest body 1 when it is adjusted forward and backward in the X-axis direction, and plays a role in shock absorption and noise reduction.

[0032] More preferably, Figure 2 and Figure 6As shown, the present embodiment further forms a rubber assembly portion 112 on the headrest frame 11, and the rubber assembly portion 112 is used to form the above-mentioned installation cavity 10. After the above-mentioned first rubber ring 51 and the second rubber ring 52 are both sleeved on the X-direction slider nut 40, the first rubber ring 51 and the second rubber ring 52 can be fixed by means of screws, screws and other components through the cover 113. This structure further has a buffering effect on the process of the X-axis drive module 4 driving the headrest body 1 to move forward or backward, thereby avoiding abnormal noise or even jamming due to large mechanical vibration.

[0033] The headrest frame 11 is installed with an X-axis guide column 12, and the exterior shell 2 is installed with a Z-axis guide column 21. The slide 30 is provided with a plurality of guide holes 300 for the X-axis guide column 12 and the Z-axis guide column 21 to be movably inserted.

[0034] Further, if Figure 3 and Figure 7 As shown, since both the X-axis drive module 4 and the Z-axis drive module 3 are integrated into the slide 30 in this embodiment, guide holes 300 are provided in both the Z-axis and X-axis directions. As the Z-axis drive motor 32 drives the Z-direction slider nut 31 to move along the axis of the Z-direction screw 33, the slide 30 forms a stable guide path thanks to the active cooperation between the Z-axis guide post 21 and the guide hole 300. This effectively prevents lateral deflection or rotation of the slide 30 during the lifting and lowering process, thereby enhancing operational stability. Similarly, the cooperation between the X-axis guide post 12 and the guide hole 300 provides a lateral (i.e., X-axis) guiding force for the headrest body 1, preventing it from jamming, deflecting, or even shaking during movement relative to the exterior shell 2. This enhances the vibration resistance and durability of the headrest structure, providing a solid technical foundation for intelligent and comfortable seat adjustment. Preferably, in this embodiment, sheet metal is welded to the top and bottom ends of the Z-axis guide column, and the sheet metal is used for installing the above-mentioned X-axis slide rail and positioning pin.

[0035] Preferably, if Figure 3 As shown, this embodiment further provides a plurality of fixing sleeves 301 on the slide 30, which eliminate shaking and vibration and improve the user's comfort during use, and is particularly suitable for high-end seat scenarios with frequent adjustments; and the buffering effect of the fixing sleeves 301 reduces the direct friction between metal parts, reduces the wear rate, and extends the service life of the guide system. This embodiment adopts the method of setting the fixing sleeves 301 on the X-axis guide column 12 and the Z-axis guide column 21, which effectively compensates for the manufacturing errors and assembly gaps of the parts, so that the headrest body 1 always maintains a high-precision motion trajectory during the adjustment process.

[0036] A headrest frame 11 is provided in the headrest main body 1 , and a protective sheet metal 110 is detachably connected to the headrest frame 11 . The protective sheet metal 110 is used to restrict the X-direction screw rod 42 from passing through the headrest frame 11 .

[0037] More preferably, Figure 2 and Figure 7 As shown, the four X-axis guide columns 12 in this embodiment are connected to the headrest frame 11 by screws or screws. It is worth noting that the headrest frame 11 in this embodiment is not made of one-piece injection molding. A detachable protective sheet metal 110 is provided on the headrest frame 11. On the one hand, it is convenient to manufacture and mold the headrest frame 11, and on the other hand, it ensures that the headrest support rod 20 is in a stable state along the headrest frame 11. Figure 2 The smoothness and stability of the X-axis movement toward or away from the exterior housing 2 effectively prevents unusual noise or even jamming of the X-axis screw 42 due to displacement or shaking. To simplify overall assembly, the protective sheet metal 110 and X-axis guide post 12 in this embodiment can be installed within the headrest frame 11 using the same screw or screw components, improving assembly efficiency and facilitating subsequent maintenance and replacement.

[0038] Several snap ends 111 are provided at the periphery of the headrest frame 11. The headrest body 1 also includes a face cover 13 equipped with a snap plate 130. The snap plate 130 has snap holes 130a formed therein. The snap holes 130a are movably fastened to the snap ends 111 to limit the movement of the face cover 13 relative to the headrest frame 11.

[0039] like Figure 7 and Figure 8 As shown, during normal use by the user, the headrest body 1 will be subjected to multi-directional forces due to adjustment actions or pressure from the human head. At this time, the mechanical bite structure between the buckle end 111 and the buckle hole 130a effectively prevents the face cover 13 from sliding, offsetting or falling off relative to the headrest frame 11. The modular quick-release design greatly reduces maintenance costs and time and improves product maintainability.

[0040] A cover plate 14 is also provided on the headrest main body 1, a decorative plate 22 is provided on the exterior shell 2, a Z-axis slider 140 is provided on the cover plate 14, a Z-axis slide rail 220 and an X-axis slider 221 are provided on the decorative plate 22, a mounting sheet metal 302 is connected to the bottom of the slide seat 30, an X-axis slide rail 303 is provided at the bottom of the mounting sheet metal 302, the Z-axis slider 140 is movably connected to the Z-axis slide rail 220, and the X-axis slider 221 is movably connected to the X-axis slide rail 303.

[0041] like Figure 3 and Figure 6 As shown, when the Z-axis driving motor 32 drives the Z-direction screw rod 33 to rotate, the headrest body 1 is moved along the Z-direction slider nut 31 and the slide seat 30. Figure 2When the headrest body 1 is lifted and lowered in the Z-axis direction, the Z-axis slider 140 on the cover plate 14 and the Z-axis slide rail 220 on the decorative plate 22 can be engaged with each other to ensure that the headrest body 1 is lifted and lowered smoothly in the Z-axis direction to prevent deflection or jamming. As a result, the headrest body 1 is lifted and lowered without shaking throughout the entire process, improving the user's comfort. Similarly, when the X-axis drive motor 41 drives the X-axis screw 42 to rotate, the X-axis slider nut 40 drives the headrest body 1 to Figure 2 During forward or backward movement in the X-axis direction, the slider 30, mounting sheet metal 302, and X-axis rail 303 remain stationary. Because the decorative panel 22 is movably connected to the headrest body 1 via the Z-axis rail 220 and Z-axis slider 140, the X-axis slider 221 guides the headrest body 1's free X-axis sliding motion relative to the X-axis rail 303 while limiting its vertical or tilting displacement. Therefore, the dual-axis slider / rail system provides a precise guide path, avoiding adjustment errors caused by structural looseness and meeting the precision requirements of high-end seats. Furthermore, the slider / rail system provides excellent contact rigidity and shock absorption, reducing fatigue damage during long-term use. Example 2:

[0042] This second embodiment, based on the first embodiment, provides a music headrest, including a speaker 15 installed in the headrest body 1. The speaker 15 is used to play music, and the speaker 15 can be detachably installed in the headrest body 1 using screws, bolts, and other components. When the user leans on the headrest body 1, they can receive audio signals through vibration and air transmission, achieving a private, comfortable, and immersive listening experience. Of course, this structure is not only suitable for car seats, but can also be used in other scenarios such as office chairs and massage chairs. Example 3:

[0043] This third embodiment is based on the first or second embodiment or the combination of the first and second embodiments, and further provides a heated headrest. The heated headrest includes a headrest end snap, a headrest end snap 16 is provided at the lower end of the headrest body 1, and the headrest end snap 16 is connected to the headrest end snap via a wiring harness. That is, the metal contacts in the snap are in contact with each other to form a complete current loop. Since the snap has good electrical conductivity, it can achieve low-resistance and high-efficiency energy transmission, ensuring a rapid heating response. The integrated quick-release design eliminates the need for additional power cord plugging and unplugging, making operation simple and quick, and suitable for frequent replacement scenarios. It should be noted that the snap structure is the same as that used in existing headrests and will not be described in detail here. Preferably, several headrest end snaps 16 in this embodiment (four in this embodiment) are connected to the same assembly plate 17, and a snap-fit ​​groove 114 is formed at the bottom end of the headrest frame 11. Therefore, the two ends of the assembly plate 17 can be connected to the headrest frame 11 when they are simultaneously snapped into the snap-fit ​​groove 114, ensuring the stability of the headrest end snaps 17, simplifying the overall assembly and disassembly operations, and bringing great convenience to subsequent maintenance and replacement.

[0044] It should be noted that the Z-axis drive motor 32 and the X-axis drive motor 41 in this embodiment can be replaced by other drive devices such as a stepper motor and a servo motor.

[0045] It should be noted that, in the present invention, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly defined. The terms "connected", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0046] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0047] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

Claims

1. An integrated four-way electric headrest, characterized in that: include: A headrest body and an exterior shell, wherein the headrest body is movable relative to the exterior shell, and the exterior shell is provided with a headrest support rod; a Z-axis drive module detachably connected to the headrest support rod, the Z-axis drive module comprising a slide and a Z-direction slider nut; the slide being movably connected to the headrest body and capable of reciprocating along the height direction of the headrest support rod; the Z-direction slider nut being connected to the slide to drive the headrest body to perform lifting motion; An X-axis drive module is disposed on the slide, the X-axis drive module including an X-direction slider nut connected to the headrest body to drive the headrest body to move closer to or away from the exterior shell when moving relative to the slide; A semi-enclosed rubber ring, a first rubber ring, and a second rubber ring, wherein the contact surface between the Z-direction slider nut and the slide seat is covered by the semi-enclosed rubber ring; a mounting cavity is formed in the headrest body, the first rubber ring and the second rubber ring are respectively covered at right angles to the X-direction slider nut and adhere to the inner wall of the mounting cavity, and 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 according to claim 1, characterized in that: The Z-axis drive module also includes a Z-axis drive motor and a Z-direction screw rod arranged in the exterior shell. The output end of the Z-axis drive motor is connected to the Z-direction screw rod, and the Z-direction slider nut is movably connected to the Z-direction screw rod to drive the slide to move up and down along the axis direction of the Z-direction screw rod.

3. The integrated four-way electric headrest according to claim 1, characterized in that: The X-axis drive module also includes an X-axis drive motor and an X-axis screw rod. The X-axis drive motor is installed on the slide. The output end of the X-axis drive motor is connected to the X-axis screw rod. The X-axis slider nut is movably connected to the X-axis screw rod to drive the headrest body closer to or away from the exterior shell.

4. The integrated four-way electric headrest according to claim 3, characterized in that: A headrest frame is provided in the headrest main body, and a protective sheet metal is detachably connected to the headrest frame. The protective sheet metal is used to restrict the X-direction screw rod from passing through the headrest frame.

5. The integrated four-way electric headrest according to claim 4, characterized in that: The headrest frame is installed with an X-axis guide column, the exterior shell is installed with a Z-axis guide column, and the slide seat is provided with a plurality of guide holes for the X-axis guide column and the Z-axis guide column to be movably inserted into the guide holes.

6. The integrated four-way electric headrest according to claim 5, characterized in that: A plurality of fixing sleeves are provided on the slide seat, and the fixing sleeves are sleeved on the X-axis guide column and the Z-axis guide column to eliminate manufacturing gaps.

7. The integrated four-way electric headrest according to claim 4, characterized in that: A plurality of buckle ends are provided at the periphery of the headrest frame, and the headrest body also includes a face cover equipped with a buckle plate, a buckle hole is opened in the buckle plate, and the buckle hole is movably buckled with the buckle end to limit the movement of the face cover relative to the headrest frame.

8. The integrated four-way electric headrest according to claim 7, characterized in that: A cover plate is also provided on the headrest body, a decorative plate is provided on the exterior shell, a Z-axis slider is provided on the cover plate, a Z-axis slide rail and an X-axis slider are provided on the decorative plate, a mounting sheet metal is connected to the bottom of the slide seat, an X-axis slide rail is provided at the bottom of the mounting sheet metal, the Z-axis slider is movably connected to the Z-axis slide rail, and the X-axis slider is movably connected to the X-axis slide rail.

9. A musical headrest, characterized in that: An integrated four-way electric headrest comprising any one of claims 1 to 8, further comprising a speaker mounted in the headrest body.

10. A heated pillow, characterized in that: An integrated four-way electric headrest comprising any one of claims 1-9 above, further comprising a backrest end snap buckle, wherein the lower end of the headrest body is provided with a headrest end snap buckle, and the headrest end snap buckle is connected to the backrest end snap buckle via a wiring harness.

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