Pillow capable of automatically adjusting height

Abstract

A pillow capable of automatically adjusting the height comprises a neck pillow assembly, a head pillow assembly and a base. The neck pillow assembly is provided with at least one lifting system, and the lifting system pulls the supporting wall to move inwards or backwards through a cable so as to achieve lifting or lowering of the neck pillow support. The cable is wound on the pulley block and is collected by rotating the storage wheel through the motor; the self-locking of the storage wheel is realized in a way that the electromagnet assists the latch of the self-weight rod to be clamped into the tooth groove of the gear of the storage wheel; the neck pillow support and the base are provided with guide sliding rails. A heating film is arranged on the neck pillow support and provided with a heating thin film, the heating thin film is coiled in the soft rubber film groove in an S shape, and a plurality of temperature monitoring points are arranged. The heating film is provided with an air pipe for pressure collection to control lifting of the neck pillow support. The headrest assembly is provided with a double-lifting system, the supporting arms are connected through a connecting shaft body, and a cable is collected through a cable storage wheel to drive the connecting shaft body to move; a soft net-shaped body is arranged at the top of the headrest bracket, and pressure monitoring points are arranged on two sides of the soft net-shaped body; the headrest support and the base are provided with guide sliding rails.

Description

Technical Field

[0001] The present invention relates to the field of sleep pillows, and particularly to a pillow with automatically adjustable height. Background Art

[0002] In recent years, with the improvement of the quality of life and the increasing emphasis on sleep quality, especially the increasing attention of more and more people to selecting a pillow that can improve sleep and physical health. For example, when simply using an ordinary pillow to support the head without paying attention to the height of the pillow, being too high or too low will cause the cervical vertebrae between the shoulders and the head to be in a state of stretching or squeezing, making the neck muscles unable to be fully relaxed. A too-high pillow will cause soreness and muscle strain in the neck after a long time of sleeping. In severe cases, it will be difficult to get good sleep in the subsequent period. Therefore, the key to maintaining good sleep quality is to select the right pillow and give full play to the due effect of the pillow. The appropriate pillow height cannot be underestimated. Therefore, the pillow can not only improve sleep but also reduce the load on the neck pillow. Among them, the pursuit of the functions of automatically adjusting the height of the pillow and being able to support the neck pillow is increasing.

[0003] Common pillows only have the function of raising the head, and most of them are made of fiber cotton. This kind of material has a large softness, and the overall height will become lower after long-term use. In addition, the pillow does not have the function of supporting the neck pillow, and this kind of pillow is more likely to cause the problem of stiff neck when sleeping. At the same time, there are also some pillows made of latex, which have a simple supporting shape design for the cervical vertebrae. This kind of pillow has poor air permeability, and the height uniformity of the pillow is high. For many users with different head shapes and cervical vertebrae, the use effect cannot achieve better comfort. In addition, for some places with cold weather and some groups with long-term cervical vertebra problems, these are all problems that the pillow needs to solve and are also important factors affecting the satisfaction of the pillow experience.

[0004] At present, most pillows with adjustable height adopt the airbag height adjustment scheme, and it is only designed at the cervical vertebra position of the pillow. The head has no raising function. Some only use the method of stacking and padding the head, and there is no supporting function for the cervical vertebra. This kind of airbag pillow is inflated by pressing a small airbag by hand to make the airbag larger to achieve elevation. This kind of elevation size is small and easy to leak air, and it can't bear the extrusion of heavier objects, with greater risks. This kind of pillow doesn't massage the cervical vertebra. In addition, the supporting effect of the airbag on the cervical vertebra is not very ideal, and some users with larger head shapes can't use it; the pillow using stacking and padding doesn't support the cervical vertebra, and it is easier to cause harm to the cervical vertebra after padding, resulting in poor comfort. In addition, this kind of pillow doesn't have the function of hot compress on the cervical vertebra. The disadvantages of the above existing technologies are as follows: 1. The pillow can only be partially raised, and the height of the head or cervical vertebra part can't be adjusted simultaneously. Therefore, using an inappropriate pillow is more likely to cause harm to the cervical vertebra; 2. The pillow has poor air permeability, lacks the functions of hot compress and massage on the cervical vertebra; 3. The durability and comfort of the pillow are poor, it is difficult to find a suitable height, and the sleep quality deteriorates.

[0005] Therefore, in order to solve the above problems, providing a pillow with automatically adjustable height is the research topic of the present invention. It is necessary to add functions such as adjustable height of the neck pillow, adjustable height of the head pillow, hot compress and massage on the neck to the pillow, innovate the automatic adjustability of the pillow to meet the needs of different users, improve the comfort and safety of the pillow, facilitate users to adjust the height of the pillow in different sleeping postures, so as to improve the sleep quality of users, pursue the quality of life, reduce the risk of increased cervical spondylosis caused by improper use of the pillow, and at the same time increase the service life of the pillow. Summary of the Invention

[0006] The present invention provides a pillow with automatically adjustable height, aiming to overcome the problems that the existing pillows can't adjust the height of the cervical vertebra and the head of the pillow simultaneously, the air permeability and comfort of the pillow are poor, lack the function of hot compress on the cervical vertebra, and the pillow is not durable. Therefore, the pillow needs to have a raising function at the cervical vertebra and head parts, be able to have the functions of hot compress and massage on the cervical vertebra position, improve the air permeability and comfort of the pillow, facilitate the requirements of different users in different sleeping postures, and adjust the appropriate height of the cervical vertebra and the head simultaneously. At the same time, the pillow is small in size and durable, providing more functional help for users originally troubled by cervical spondylosis, so as to realize the ultimate intelligent demand of the pillow and meet it.

[0007] To achieve the above object, the technical solution adopted by the present invention is: a pillow with automatically adjustable height, comprising a neck pillow assembly, a head pillow assembly and a base assembly; the neck pillow assembly is composed of a neck pillow lifting system and a neck pillow support assembly; the neck pillow support assembly is provided with a heating film, a heating thin film, a neck pillow support, a pressure tube, a vibration motor and a neck pillow guide body; the head pillow assembly is composed of a head pillow double lifting system and a head pillow support assembly, and the head pillow support assembly is provided with a soft mesh body, a head pillow support, a pressure sampling tube and a head pillow guide body.

[0008] The neck pillow lifting system is at least provided with one neck pillow cross support arm, and the labor-saving design of the neck pillow cross support arm is realized by using the lever principle; pulley groups are arranged at the bottom arm ends of the neck pillow cross support arms, and at least one cable winds among the pulley groups in such a winding manner to connect all the pulleys, thereby forming a labor-saving cable pulley group; one end of the cable is fixed on a cable collecting system, and the cable collecting system is at least driven by one motor.

[0009] The cable collecting system comprises a cable storage wheel self-locking device. A storage wheel gear is arranged on the side of the cable storage wheel of the cable storage wheel self-locking device, and at least one rotatable self-weight rod is arranged on the top of the storage wheel gear. Self-locking is realized by the engagement of the teeth of the self-weight rod with the tooth grooves of the storage wheel gear; a neck pillow support arm tension spring is arranged between the motor fixing bracket of the cable collecting system and the neck pillow support arm. The neck pillow support arm tension spring can enable the height of the neck pillow support assembly to be maintained at the set required height when the neck pillow support assembly is subjected to any external force, and at the same time, the neck pillow support arm tension spring can enable the neck pillow support assembly to lower when the cable storage wheel is unlocked.

[0010] The heating film is fixed on the neck pillow support. The heating film is at least provided with one heating thin film which spirals in an S shape in a preset T-shaped groove of the heating film, and a pressure tube is arranged on the top of the heating film; the vibration motor is fixed at the middle position on the lower side of the neck pillow support, and an arc-shaped elastic body is arranged to fix the vibration motor at the bottom of the neck pillow support; at least two neck pillow guide sliding rails are arranged at the connection position between the neck pillow support assembly and the base, and the neck pillow guide sliding rails assist the neck pillow support assembly to move only in the up and down positions when lifting and lowering.

[0011] The head pillow assembly comprises a head pillow support assembly and a head pillow double lifting system; the head pillow support is designed as a mouth-shaped hollow structure body, and a soft mesh body is arranged in the mouth-shaped hollow structure area. At least one round hole handle is arranged on both sides of the soft mesh body, and a pressure sampling tube is installed by using the round holes on the round hole handle. The pressure of the soft mesh body is monitored through the pressure of the pressure sampling tube; a head pillow reinforcement bracket is arranged at the bottom of the head pillow support assembly and is fixed to the head pillow support by screws, and there is a certain distance between the head pillow reinforcement bracket and the soft mesh body.

[0012] The connection position between the headrest support assembly and the base is provided with at least four headrest guide rails, with two headrest guide rails provided on each side of the headrest support assembly; the stroke of the headrest guide rail is shorter than that of the neckrest guide rail.

[0013] The headrest double-lifting system refers to the use of two liftable headrest cross-support arms, with one headrest cross-support arm provided on each side of the headrest support assembly. The two headrest cross-support arms are each provided with the same arm sliding connection shaft on two lower sliding headrest support arms, and a pulley group connection seat is fixed between the two arm sliding connection shafts to form a coupling body. The coupling body is wound and connected to a cable collection system through a cable. The cable collection system is provided with at least one motor for driving to realize the lifting of the headrest support assembly; two compression springs are provided between the pulley group connection seat and the headrest base fixing frame, and the compression springs will contract or expand when the pulley group connection seat moves; a strain gauge sensor is provided at a certain position on the upper sliding headrest support arm to monitor the force on the upper sliding headrest support arm.

[0014] The explanations of the relevant content in the above technical solutions are as follows:

[0015] 1. In the above solution, the neckrest cross-support arm is divided into an upper sliding neckrest support arm and a lower sliding neckrest support arm, and is provided with an upper neckrest support arm rotating seat, an upper neckrest support arm sliding seat, a lower neckrest support arm rotating seat, a lower neckrest support arm sliding seat, a cable collection system, and a cable pulley; the upper sliding support arm and the lower sliding support arm are provided with a neckrest support arm cross-rotating shaft hole at a certain position. The axial hole distance between the neckrest support arm cross-rotating shaft hole and the upper neckrest support arm shaft hole needs to be less than the axial hole distance between the neckrest support arm cross-rotating shaft hole and the lower neckrest support arm shaft hole, and the lever principle is used to realize the labor-saving design of the neckrest cross-support arm; the upper sliding neckrest support arm of the neckrest cross-support arm is connected to the upper neckrest support arm rotating seat through a sliding neckrest shaft, and the lower neckrest support arm shaft hole of the upper sliding neckrest support arm is connected to the lower neckrest support arm rotating seat through a rotating neckrest shaft. The lower sliding neckrest support arm is connected to the upper neckrest support arm rotating seat through a rotating neckrest shaft, and the lower neckrest support arm shaft hole of the lower sliding neckrest support arm is connected to the lower neckrest support arm sliding seat through a sliding neckrest shaft. The upper neckrest support arm rotating seat and the upper neckrest support arm sliding seat are fixed at a specific position on the neckrest support through screws to form a neckrest cross-support arm.

[0016] 2. In the above solution, the lower neckrest support arm rotating seat is provided with at least two cable pulleys connected together by a rotating shaft and fixed at a specific position on the base by screws; the lower neckrest support arm sliding seat is provided with a set of cable pulley groups connected to the sliding neckrest shaft, and the cable pulley group is provided with at least two cable pulleys; one end of the cable is fixed on a cylinder of the lower neckrest support arm rotating seat, the cable is passed through one of the pulleys of the cable pulley group, and then the cable is wound around a pulley on the lower neckrest support arm rotating seat, and the remaining pulleys are connected in this winding manner. Finally, the cable is fixed to the cable storage wheel, thereby forming a labor-saving cable pulley group. This labor-saving effect can reduce the rotational force of the motor driving the cable storage wheel. When the heavy object is transmitted to the pulley group of the neckrest cross support arm through the neckrest support assembly, the weight will be distributed to multiple pulleys, and the weight borne by each pulley will be reduced, thereby reducing the working load of the motor.

[0017] 3. In the above solution, the cable collection system is arranged on the lower neckrest support arm sliding seat in a straight line with the neckrest cross support arm. One section of the cable on the pulley group is fixed on the cable collection system. The cable collection system is provided with a motor to drive the cable storage wheel, and the cable is collected by the cable storage wheel and the neckrest cross support arm is pulled to move to realize the up and down movement of the neckrest support assembly.

[0018] 4. In the above solution, the cable storage wheel self-locking device is a device that prevents the cable storage wheel from rotating again due to the action of other forces after it stops rotating. By providing a storage wheel gear on the side of the cable storage wheel, the storage wheel gear is fixed on the cable storage wheel by screws. The self-weight rod is connected to the bearing fixed seat and the bearing wall of the lower neckrest support arm sliding seat through the self-weight rod rotating shaft. One end of the self-weight rod is connected to the iron rod of the electromagnet, and the self-weight rod locking teeth are aligned with the tooth grooves. The rotation of the self-weight rod is driven by the telescopic movement of the iron rod of the electromagnet. When there is no power to control the electromagnet, the self-weight rod locking teeth are clamped with the tooth grooves by the gravity of the self-weight rod and the elastic force of the iron rod spring on the iron rod of the electromagnet, thereby realizing the self-locking function of the cable storage wheel.

[0019] 5. In the above solution, a neckrest support arm tension spring is provided between the lower sliding neckrest support arm and the motor fixed bracket. This neckrest support arm tension spring can ensure that the height of the neckrest support assembly remains at the set requirement when it is subjected to any external force; when the cable storage wheel self-locking device is unlocked and the motor rotates the cable storage wheel to release the cable, the pulling force of the neckrest support arm tension spring can slowly unfold the neckrest cross support arm, realizing the lowering function of the neckrest support assembly.

[0020] 6. In the above solution, the heating film is provided with a plurality of cylindrical buckles on the inner side surface for buckling on the neck pillow bracket. The fitting surface of the heating film is set as a rough surface to prevent the heating film from slipping when stressed. The heating film is provided with at least one heating thin film spiraling in an S shape in a preset T-shaped groove of the heating film. A plurality of temperature sensors are provided at corresponding positions inside the heating thin film, and the temperature monitoring points are close to the top position of the heating film. The pressure tube is arranged on the top of the heating film, and a certain size of the pressure tube protrudes outside the surface of the heating film. One end of the pressure tube is connected to the pressure sensor on the main board, and the other end of the pressure tube is provided with a capillary tube, which is convenient for the air pressure in the pressure tube to be kept in balance with the atmospheric pressure, so that the pressure sensor can accurately collect the pressure value every time the pressure tube is stressed. The vibration motor is fixed at the middle position on the lower side of the neck pillow bracket, and an arc-shaped elastic body is provided to fix the vibration motor at the bottom of the neck pillow bracket. At least two neck pillow guiding slide rails are provided at the connection position between the neck pillow bracket assembly and the base. The neck pillow guiding body on the neck pillow bracket assembly is set as a detachable type and is fixed on the lower side of the neck pillow bracket by screws. The neck pillow guiding body is made of a plastic material with self-lubricity, wear resistance and sufficient strength. The neck pillow guide rail and the base are set as a detachable type, and the material is made of aluminum alloy with a small density, which can meet the processing accuracy and strength and can be fixed on the side of the base by screws.

[0021] 7. In the above solution, the headrest assembly includes a headrest bracket assembly, a headrest double-lifting system, a soft mesh body and a headrest reinforcement bracket. The headrest bracket is designed as a mouth-shaped structure body, and a mouth-shaped hollow design is provided on one side of the neck pillow bracket assembly. This design is to avoid that the top surface of the headrest bracket is a complete hard structure object. The soft mesh body is secondarily formed through a mold at the mouth-shaped notch position of the headrest bracket. At least one round hole handle is provided on both sides of the soft mesh body and is not connected to the headrest bracket. The round hole handle is provided with a round hole, which is used for installing a pressure sampling tube. At the same time, both ends of the pressure sampling tube are in contact with and limited by the side wall of the headrest bracket. When the soft mesh body is deformed by external gravity, the pressure sampling tube is squeezed through the round hole handle to realize pressure monitoring. The headrest reinforcement bracket is fixed to the headrest bracket by screws to prevent the mouth-shaped notch of the headrest bracket from being deformed when the soft mesh body on the headrest bracket is stressed, and at the same time make the elasticity of the soft mesh body more sufficient. There is a certain distance between the headrest reinforcement bracket and the soft mesh body, which can make the deformation space of the soft mesh body towards the bottom larger.

[0022] 8. In the above solution, at least four headrest guide rails are provided at the connection position between the headrest support assembly and the base. The headrest guide on the headrest support assembly is designed to be detachable and is fixed to both sides of the headrest support by screws. The headrest guide is made of a plastic material with self-lubricity, wear resistance, and sufficient strength. The headrest guide rail and the base are designed to be detachable, and the material is aluminum alloy with a small density, which can meet the machining accuracy and strength requirements, and is fixed to the side of the base by screws; the length of the headrest guide is shorter than that of the neckrest guide by a certain dimension. Therefore, the height that the headrest support assembly can be raised is lower than that of the neckrest support assembly. The headrest guide rail connected to the base by the headrest guide is designed to be detachable.

[0023] 9. In the above solution, the double-lifting system refers to using two headrest cross-support arms that can be lifted in height, with one headrest cross-support arm provided on each side. Its design principle is similar to that of the neckrest lifting system. The difference is that each of the two lower sliding headrest support arms of the two headrest cross-support arms is provided with a support arm sliding connection shaft, and a pulley group connection seat is provided in the middle of the two support arm sliding connection shafts to communicate with them, so as to realize the simultaneous movement of the two headrest cross-support arms. The pulley group connection seat is wound and connected to the cable collection system through a cable to realize a labor-saving pulley group. An electric motor is provided in the cable storage system to drive the storage wheel to drive the two lower sliding headrest support arms to move in the same direction, so as to realize the raising and lowering of the headrest support assembly; the pulley group connection seat is provided with at least three cable pulleys, which are wound with cables with two cable pulleys provided on the rotating seat of the lower neckrest support arm to form a more labor-saving cable pulley group; two compression springs are provided between the pulley group connection seat and the headrest base fixing frame, and the elastic force of the compression springs changes with the movement of the pulley group connection seat, so as to realize that when the cable collection system is unlocked, the headrest support assembly returns to the original height position under the action of the elastic force of the compression springs; a strain gauge sensor is provided at a certain position on the upper sliding headrest support arm to monitor the force condition of the upper sliding headrest support arm, and the output maximum power limit of the electric motor is controlled by monitoring the force on the upper sliding headrest support arm.

[0024] 10. In the above solution, shaft sleeves are provided on each rotating shaft of the cross-support arms of the neckrest lifting system and the headrest double-lifting system to prevent deformation of the support arms when they are stressed; the cable storage wheels and the storage wheel gear locking schemes provided in the neckrest lifting system and the headrest double-lifting system are the same, and the cable is fixed to the set rotating shaft center of the storage wheel by fastening nails.

[0025] The working principle and advantages of the present invention are as follows:

[0026] 1. The neck pillow lifting system samples the cross support arm and uses the lever principle for labor-saving design. Then, through a cable, it connects to a pulley block in a labor-saving scheme to pull the cross support arm of the neck pillow, lifting the neck pillow support assembly, effectively reducing the output of the motor energy, and at the same time reducing the space occupied by the device layout to make the pillow more compact. At a certain position of the sliding support arm on the neck pillow and the headrest, there is a strain gauge sensor, whose function is to monitor the force change of the sliding support arm on the neck pillow and the headrest when the motor drives the cable to drag the support arm on the support, avoiding the motor from outputting excessive torque when lifting the neck pillow support assembly and the headrest support assembly to the same height, thereby prolonging the life of the motor.

[0027] 2. The cable storage wheel is equipped with a self-locking device to prevent the neck pillow support assembly and the headrest support assembly from changing the lifting height when affected by external gravity when they rise to the designated position. When unlocking the self-locking device of the neck pillow support assembly, the motor rotates the cable storage wheel to drive the cable, and the tension of the neck pillow support arm spring can be used to lower the neck pillow support assembly, while the lowering of the headrest support assembly uses the elastic force of two compression springs to lower the headrest support assembly.

[0028] 3. The heating film has a heating thin film coiled in an S shape inside, which can make the temperature of each position on the surface of the neck pillow support assembly uniform. At the same time, each temperature sensor on the heating thin film can effectively monitor the temperature to avoid the temperature being too high or too low. The pressure tube protruding above the heating film surface can better contact with external objects. At the same time, the pressure tube can real-time judge the overall gravity extrusion situation of the neck pillow support assembly to judge whether the lifting height of the neck pillow support assembly overshoots. One end of the pressure tube is provided with a capillary tube that can zero the sampled pressure sensor with the atmospheric pressure in real time. The vibration motor is fixed at the middle position on the lower side of the neck pillow support, which can better drive the vibration of the entire neck pillow support assembly, and the vibration frequency is easy to regulate.

[0029] 4. At the connection position between the neck pillow support assembly and the base, there are two neck pillow guide rails. By setting the neck pillow guide body as detachable, and the neck pillow guide body is made of a plastic material with self-lubricating, wear-resistant and sufficient strength, and the neck pillow guide rail and the base are set as detachable, and the material is made of aluminum alloy with low density, which can meet the processing accuracy and strength, so as to ensure that the neck pillow support assembly moves smoothly up and down, and the neck pillow support assembly will not be displaced when affected by external forces in all directions, and there will be no greater noise when the vibration motor vibrates.

[0030] 5. The headrest support assembly adopts two headrest lifting systems, with one headrest cross support arm on each side. This can meet the requirement of having a large surface area on the headrest support, and can effectively support the headrest when bearing a large weight, achieving a certain lifting height. The large surface area and the ability to bear a large weight can provide comfort for the pillow and be suitable for people with different body weights. At the same time, the two headrest cross support arms are connected into a coaxial body through a pulley group connection seat to connect the sliding support arm under the headrest, enabling the two headrest cross support arms to move simultaneously. Only one motor drives the cable storage wheel to achieve the lifting and lowering of the headrest support assembly.

[0031] 6. A soft mesh body is provided in the middle of the headrest support assembly. At the same time, there is a certain distance between the soft mesh body and the surface of the headrest reinforcement support. Its function is to make the head feel soft and have a buffering effect when leaning on the soft mesh body. At the same time, the soft mesh body can adapt to different head shapes, support the head stably, and the heat emitted by the head can be well dissipated through the mesh holes of the soft mesh body. Pressure sampling tubes are provided on both sides of the soft mesh body, and their function is to judge whether the user's head is in place, which is used to control the power-off of the pillow and cut off the heating of the heating film in time, effectively reducing energy consumption.

[0032] 7. Two headrest guide rails are provided on each side of the headrest support assembly to ensure that the headrest support assembly only moves in one direction when rising or falling, and at the same time ensure that when the headrest support assembly is affected by external forces, the double headrest lifting system can still move normally. The materials and design schemes of the headrest guide rails are the same as those of the neckrest guide rails. The difference is that the length of the headrest guide rails is smaller than that of the neckrest guide rails by a certain size, which can meet the requirement that the arc top surface of the neckrest support assembly is higher than the arc top surface of the headrest side when the neckrest support assembly is lifted to the highest position. Therefore, the stroke of the headrest guide rails is shorter than that of the neckrest guide rails. Description of the Drawings

[0033] Appendix Figure 1 is a schematic diagram of the appearance of the pillow in Embodiment 1 of the present invention; Appendix Figure 2 is an exploded view of the pillow in Embodiment 1 of the present invention; Appendix Figure 3 is an exploded view of the neckrest support assembly in Embodiment 1 of the present invention; Appendix Figure 4 is a schematic sectional view and a partial schematic view of the neckrest support assembly in Embodiment 1 of the present invention; Appendix Figure 5 is a schematic sectional view of the pressure tube in Embodiment 1 of the present invention; Appendix Figure 6 is a schematic diagram of the appearance of the neckrest lifting system in Embodiment 1 of the present invention; Appendix Figure 7 is a schematic sectional view and a partial schematic view of the neckrest lifting system in Embodiment 1 of the present invention; Appendix Figure 8Schematic diagram of the appearance of the neck pillow cross support arm in Embodiment 1 of the present invention; Appendix Figure 9 Schematic diagram of the appearance of the cable pulley group in Embodiment 1 of the present invention; Appendix Figure 10 Schematic cross-sectional view of the cable storage wheel in Embodiment 1 of the present invention; Appendix Figure 11 Schematic diagram of the appearance of the self-weight rod in Embodiment 1 of the present invention; Appendix Figure 12 Exploded schematic diagram of the headrest bracket assembly in Embodiment 1 of the present invention; Appendix Figure 13 Schematic cross-sectional view of the headrest bracket assembly in Embodiment 1 of the present invention; Appendix Figure 14 Schematic diagram of the appearance of the double headrest lifting system in Embodiment 1 of the present invention; Appendix Figure 15 Schematic diagram of the appearance of the headrest cross support arm in Embodiment 1 of the present invention; Appendix Figure 16 Schematic diagram of the base, neck pillow lifting system and double headrest lifting system in Embodiment 1 of the present invention; Appendix Figure 17 Schematic diagram of the scheme for lifting the neck pillow cross support arm by the lead screw in Embodiment 2 of the present invention; Appendix Figure 18 Schematic diagram of the electromagnetic iron rod self-locking scheme in Embodiment 3 of the present invention.

[0034] In the above figures: 001. Neck pillow assembly; 002. Headrest assembly; 003. Base; 1. Neck pillow support assembly; 2. Neck pillow lifting system; 3. Neck pillow guide rail; 4. Base; 5. Headrest guide rail; 6. Headrest support assembly; 7. Headrest double-lifting system; 8. Compression spring; 9. Headrest base fixing bracket; 10. Neck pillow cross support arm; 11. Headrest cross support arm; 101. Pressure tube; 1011. Capillary tube; 102. Heating film; 103. Heating membrane; 1031. Cylindrical buckle; 1032. T-shaped groove; 104. Neck pillow support; 105. Neck pillow guide body; 106. Vibration motor; 107. Arc-shaped elastic body; 201. Upper neck pillow support arm rotating seat; 202. Lower sliding neck pillow support arm; 203. Neck pillow support arm cross rotating shaft; 204. Upper sliding neck pillow support arm; 205. Upper neck pillow support arm sliding seat; 2051. Upper neck pillow support arm sliding seat slide rail; 206. Upper neck pillow support arm sliding shaft; 207. Motor fixing bracket; 208. Motor; 209. Electromagnet; 2091. Iron rod; 2092. Iron rod spring; 210. Bearing fixing seat; 211. Bearing; 212. Cable pulley group; 213. Lower sliding neck pillow support arm sliding shaft; 214. Lower neck pillow support arm sliding seat; 2141. Lower neck pillow support arm sliding seat slide rail; 215. Neck pillow support arm tension spring; 216. Cable; 217. Cable pulley; 218. Cable fixing screw; 219. Lower neck pillow support arm rotating shaft; 220. Lower neck pillow support arm rotating seat; 221. Upper neck pillow support arm rotating shaft; 222. Bush; 223. Neck pillow support arm tension spring hook; 224. Cable storage wheel gear; 2241. Tooth groove; 225. Cable storage wheel; 226. Self-weight rod; 2261. Self-weight rod locking tooth; 2262. Self-weight rod rotating shaft hole; 2263. Self-weight rod connection hole; 227. Self-weight rod rotating shaft; 228. Strain gauge sensor; 229. Cable pulley shaft; 230. Fastening nail; 601. Soft mesh body; 6011. Round hole handle; 6012. Mesh hole; 602. Headrest support; 603. Headrest guide body; 604. Pressure sampling tube; 605. Headrest reinforcement bracket; 701. Arm sliding connection shaft; 702. Pulley group connection seat; 703. Upper headrest support arm sliding seat; 7031. Upper headrest support arm sliding seat slide rail; 704. Headrest support arm sliding shaft; 705. Upper sliding headrest support arm; 706. Lower sliding headrest support arm; 707. Upper headrest support arm rotating seat; 708. Lower headrest support arm rotating seat; 709. Lower headrest support arm rotating shaft; 710. Upper headrest support arm rotating shaft; 711. Headrest support arm cross rotating shaft; 712. Lower headrest support arm sliding seat; 7121. Lower headrest support arm sliding seat slide rail; 901. Fixed frame compression spring baffle; 120. Stepper motor; 121. Lead screw; 122. Lead screw fixing seat; 1221. Lead screw fixing seat slide rail; 123. Sliding shaft; 124. Flange guide shaft support; 130. Electromagnet special-shaped rod; 1301.Guide rod; 1302. Guide rod limit teeth. Specific implementation mode

[0035] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0036] Embodiment 1: Refer to the attached Figure 1-16 As shown, an automatically height-adjustable pillow includes a neck pillow assembly 001, a head pillow assembly 002, and a base assembly 003. The neck pillow assembly 001 includes a neck pillow lifting system composed of a neck pillow lifting system 2 and a neck pillow bracket assembly 1; the neck pillow bracket assembly 1 includes a pressure tube 101, a heating film 102, a heating membrane 103, a neck pillow bracket 104, a neck pillow guide 105, a vibration motor 106, and an arc-shaped elastic body 107. The heating membrane 103 is buckled into the upper hole of the neck pillow bracket 104 through a cylindrical buckle 1031, and the inner side of the heating membrane 103 is a rough surface; the heating film 102 is spirally loaded into the preset T-shaped groove 1032 of the heating membrane 103 in an S shape, and temperature sensors are arranged at various positions on the heating film 102 to control the heating of the heating film 102, so that the S-shaped spirally arranged heating film 102 can heat evenly on the surface of the heating membrane 103; after the pressure tube 101 is installed at a specific position on the surface of the heating membrane 103, the top of the pressure tube 101 will be higher than the surface of the heating membrane 103 by a height of h2, so that it is convenient for the pressure tube to sensitively detect the extrusion pressure after being extruded. A capillary tube 1011 is embedded at one end of the pressure tube 101, which can enable the pressure tube 101 to better return to the atmospheric pressure state after detecting the pressure, and can provide a pressure sensor for zero calibration; one neck pillow guide 105 is assembled on each side of the neck pillow bracket 104. The neck pillow guide 105 is made of a plastic material with self-lubricity, wear resistance and sufficient strength, which can ensure the smooth lifting of the neck pillow bracket assembly 1. At the same time, the noise caused by the collision of the neck pillow guide 105 is reduced when the vibration motor 106 vibrates; the vibration motor 106 is assembled inside the middle position of the neck pillow bracket 104 through the arc-shaped elastic body 107 to ensure that the vibration energy output by the vibration motor 106 is more stable at each position.

[0037] The neck pillow lifting system 2 is composed of a lower sliding neck pillow support arm 202 and an upper sliding neck pillow support arm 204 assembled into a neck pillow cross support arm 10 through a neck pillow support arm cross rotating shaft 203. The distance L1 from the axis of the lower neck pillow support arm rotating shaft 219 to the axis of the neck pillow support arm cross rotating shaft 203 is equal to the distance L3 from the axis of the neck pillow support arm cross rotating shaft 203 to the axis of the lower sliding neck pillow support arm sliding shaft 213. The distance L4 from the axis of the neck pillow support arm cross rotating shaft 203 to the axis of the upper neck pillow support arm rotating shaft 221 is equal to the distance L2 from the axis of the neck pillow support arm cross rotating shaft 203 to the axis of the upper sliding neck pillow support arm sliding shaft 206. Since (L1 = L3) > (L4 = L2), with the neck pillow support arm cross rotating shaft 203 as the fulcrum as a lever, the lever principle of the neck pillow cross support arm 10 is realized to achieve a labor-saving design. The lower sliding neck pillow support arm 202 is connected to the upper neck pillow support arm rotating seat 201 through the upper neck pillow support arm rotating shaft 221, and the lower sliding neck pillow support arm 202 is connected to the lower neck pillow support arm sliding seat rail 2141 of the lower neck pillow support arm sliding seat 214 through the lower sliding neck pillow support arm sliding shaft 213. The upper sliding neck pillow support arm 204 is connected to the lower neck pillow support arm rotating seat 220 through the lower neck pillow support arm rotating shaft 219, and the upper sliding neck pillow support arm 204 is connected to the upper neck pillow support arm sliding seat rail 2051 of the upper neck pillow support arm sliding seat 205 through the upper neck pillow support arm sliding shaft 206. Bushings 222 are installed between the lower sliding neck pillow support arm 202 and the upper sliding neck pillow support arm 204 and the neck pillow support arm cross rotating shaft 203, the upper neck pillow support arm sliding shaft 206, the lower sliding neck pillow support arm sliding shaft 213, and the lower neck pillow support arm rotating shaft 219 to prevent the side walls from deforming when the lower sliding neck pillow support arm 202 and the upper sliding neck pillow support arm 204 are stressed. During the lifting process of the neck pillow lifting system 2, the lower sliding neck pillow support arm sliding shaft 213 of the lower sliding neck pillow support arm 202 will slide in the lower neck pillow support arm sliding seat rail 2141, and under the action of the neck pillow support arm cross rotating shaft 203, the upper neck pillow support arm sliding shaft 206 of the upper sliding neck pillow support arm 204 will slide in the upper neck pillow support arm sliding seat rail 2051. In addition, the support arm will rotate at the positions of the lower neck pillow support arm rotating shaft 219 and the neck pillow support arm rotating shaft 221 to realize the lifting function of the neck pillow lifting system 2.

[0038] The labor-saving cable pulley block is configured such that the cable 216 is first fixed to the rotating seat 220 of the lower neckrest support arm by a cable fixing screw 218, then passes around the cable pulley 217 on the cable pulley block 212 and then around the cable pulley 217 on the rotating seat 220 of the lower neckrest support arm in sequence. Finally, the cable 216 penetrates into the axis of the cable storage wheel 225, and the cable 216 is fixed to the axis of the cable storage wheel 225 by a fastening nail 230. By winding the cable 216 around the two cable pulleys 217 on the rotating seat 220 of the lower neckrest support arm and the two cable pulleys 217 on the cable pulley block 212, the labor-saving function of the cable storage wheel 225 for collecting the cable 216 is achieved.

[0039] According to Figure 7 , 10 , as shown in Fig. 11, a bearing 211 is sleeved on each end of the cable storage wheel 225 of the cable storage wheel self-locking device. One of the bearings 211 is fixed to the sliding seat 214 of the lower neckrest support arm by a bearing fixing seat 210. One end of the cable storage wheel 225 is fixed to the rotating shaft of the motor 208. The bearing 211 on one side of the motor 208 is directly fixed to the sliding seat 214 of the lower neckrest support arm. The storage wheel gear 224 is fixed to the cable storage wheel 225 on one side of the motor 208. The self-weight rod 226 is fixed between the bearing fixing seat 210 and the sliding seat 214 of the lower neckrest support arm through a self-weight rod rotating shaft 227 in a self-weight rod rotating shaft hole 2262. One end of the self-weight rod 226, a self-weight rod connection hole 2263, is connected to an iron rod 2091 of the electromagnet 209. The self-locking of the cable storage wheel 225 means that when the electromagnet 209 is not in the working state, the self-weight rod teeth 2261 on the self-weight rod 226 are engaged into the tooth grooves 2241 of the storage wheel gear 224. In this process, two self-weight rod teeth 2261 are engaged into two tooth grooves 2241. When the electromagnet 209 is not in the working state, the iron rod spring 2092 on the electromagnet 209 raises the self-weight rod connection hole 2263 of the self-weight rod 226, that is, the iron rod 2091 moves upward to achieve self-locking. The unlocking of the cable storage wheel 225 means that when the electromagnet 209 is in the working state, the self-weight rod connection hole 2263 on the self-weight rod 226 is lowered, so that the self-weight rod teeth 2261 on the self-weight rod 226 are disengaged from the tooth grooves 2241 of the storage wheel gear 224, that is, the iron rod 2091 moves downward to achieve the unlocking of the cable storage wheel 225.

[0040] One end of the neck pillow support arm tension spring 215 is buckled on the motor fixing bracket 207, and the other end is buckled on the neck pillow support arm tension spring hook 223. During the upward movement of the pillow support assembly 1, the neck pillow support arm tension spring hook 223 will pull open the neck pillow support arm tension spring 215, and at the same time, the neck pillow support arm tension spring 215 generates a reverse pulling force; the descending height of the pillow support assembly 1 is pulled by the pulling force of the neck pillow support arm tension spring 215 to slide the neck pillow support arm 202 backward. When the electromagnet 209 enters the working state during this process, it lowers the self-weight rod connection hole 2263 on the self-weight rod 226, so that the self-weight rod locking teeth 2261 disengage from the tooth groove 2241 of the cable storage wheel gear 224. At the same time, the motor 208 rotates reversely to release the cable 216, and the neck pillow support arm 202 slides under the reverse pulling force generated by the neck pillow support arm tension spring 215, thereby realizing the descent of the pillow support assembly 1.

[0041] The headrest support assembly 6 includes a headrest support 602, a headrest guide body 603, a pressure sampling tube 604, and a headrest reinforcement bracket 605. The soft mesh body 601 and the headrest support 602 are integrally formed in a secondary molding process. The pressure sampling tubes 604 are assembled on the round hole handles 6011 on the soft mesh body 601, one on each side. Both ends of the pressure sampling tubes 604 are limited to the sides of the headrest support 602; the mesh holes 6012 on the soft mesh body 601 can provide better breathability; the pressure generated by the pressure sampling tubes 604 is caused by the deformation of the pressure sampling tubes 604 squeezed by the round hole handles 6011 when the soft mesh body 601 is deformed by an external force; the headrest reinforcement bracket 605 is fixed at the bottom of the headrest support 602. There is a height distance h3 between the plane of the headrest reinforcement bracket 605 and the soft mesh body 601. The headrest reinforcement bracket 605 can ensure that the headrest support 602 will not be deformed when the soft mesh body 601 is stressed, and at the same time can make the soft mesh body 601 more elastic, so as to improve the comfort of the pillow; the headrest guide bodies 603 are respectively installed on both sides of the headrest support 602, and two are installed on each side. The headrest guide bodies 603 are made of a plastic material with self-lubricating, wear-resistant, and sufficient strength, which can ensure the smooth lifting and lowering of the headrest support assembly 6.

[0042] The double headrest lifting system 7 refers to the use of two headrest cross-support arms 11 that can be lifted in height, with one headrest cross-support arm 11 provided on each side. The design principle of the headrest cross-support arm 11 is the same as that of the neckrest cross-support arm 10 of the neckrest lifting system 2, adopting the principle of a labor-saving lever, that is, (L5 = L7) > (L6 = L8). Since the top surface of the neckrest assembly 001 is higher than the highest surface of the headrest assembly 002 by the dimension h1 when the neckrest assembly 001 and the headrest assembly 002 are in the lowest position, the size of the headrest cross-support arm 11 will be smaller than that of the neckrest cross-support arm 10, that is, [(L5 + L6) = (L7 + L8)] < [(L1 + L2) = (L3 + L4)]; The headrest cross-support arm 11 is composed of the cross-hole of the upper sliding headrest support arm 705 connected to the cross-hole of the lower sliding headrest support arm 706 through the headrest support arm cross-rotation shaft 711. The upper sliding headrest support arm 705 is connected to the upper headrest support arm sliding seat rail 7031 of the upper headrest support arm sliding seat 703 through the headrest support arm sliding shaft 704, and then connected to the lower headrest support arm rotating seat 708 through the lower headrest support arm rotating shaft 709. One end of the lower sliding headrest support arm 706 is connected to the upper headrest support arm rotating seat 707 through the upper headrest support arm rotating shaft 710, and the other end is assembled in the lower headrest support arm sliding seat rail 7121 of the lower headrest support arm sliding seat 712 through the arm sliding connection shaft 701, thus forming a complete headrest cross-support arm 11; Sleeve 222 is installed between the headrest support arm sliding shaft 704, the headrest support arm cross-rotation shaft 711, the lower headrest support arm rotating shaft 709, the upper headrest support arm rotating shaft 710, the arm sliding connection shaft 701 and the lower sliding headrest support arm 706 and the upper sliding headrest support arm 705 to prevent the side walls of the lower sliding headrest support arm 706 and the upper sliding headrest support arm 705 from deforming when stressed; The two headrest cross-support arms 11 are connected into a connected shaft body through the arm sliding connection shaft 701 and the pulley group connection seat 702 to enable one motor to drive the two headrest cross-support arms 11 to move simultaneously; The difference between the labor-saving cable pulley group used in the double headrest lifting system 7 and the labor-saving cable pulley group of the neckrest lifting system 2 is that the pulley group connection seat 702 of the double headrest lifting system 7 is composed of three cable pulleys 217, and the end of the cable 216 is directly connected to the cable storage wheel 225 of the motor 208. During normal operation, the gravity borne by the headrest bracket assembly 6 is greater than the gravity borne by the neckrest bracket assembly 1. Therefore, through this design, the output power of one motor 208 can be reduced to drive the lifting of the double headrest lifting system 7.

[0043] According to Figure 1 、 2As shown in Figures 16, two neck pillow guide rails 3 and four headrest guide rails 5 are respectively assembled on both sides of the base 4. The neck pillow lifting system 2 and the headrest double-lifting system 7 are respectively assembled at specific positions on the base 4. When assembling the headrest double-lifting system 7, the headrest base fixing bracket 9 needs to be installed on the base 4 first. When the headrest double-lifting system 7 is assembled, two compression springs 8 need to be assembled on the fixing bracket compression spring baffle 901 and abutted against the side of the pulley block connection seat 702; when the neck pillow assembly 001 and the headrest assembly 002 are in the lowest position, the top surface of the neck pillow assembly 001 is higher than the highest surface of the headrest assembly 002 by the dimension h1. Therefore, to ensure that the neck pillow assembly 001 is always in the highest position during the rising process of the neck pillow assembly 001 and the headrest assembly 002, it is necessary to ensure that the distance h4 from the neck pillow guide rail 3 to the base 4 is greater than the distance h5 from the headrest guide rail 5 to the base 4, that is, h4 > h5. So the lifting height that the neck pillow lifting system 2 can achieve should be greater than the lifting height that the headrest double-lifting system 7 can achieve.

[0044] According to Figure 16 As shown, when the headrest double-lifting system 7 lifts the height, the side of the pulley block connection seat 702 will squeeze the two compression springs 8 towards the fixing bracket compression spring baffle 901 during the lowering of the headrest assembly 002. When the compression spring 8 is squeezed, the elastic force acting on the pulley block connection seat 702 will increase. For example, when the self-weight rod tooth 2261 of the cable storage wheel self-locking device disengages from the tooth groove 2241 of the storage wheel gear 224, and at the same time the motor 208 rotates reversely to release the cable 216, and the headrest support assembly 6 descends under the reaction force of the compression spring 8.

[0045] According to Figure 8 、 14 As shown, strain gauges 228 are assembled within a certain position on the upper sliding neck pillow support arm 204 on the neck pillow cross support arm 10 and the upper sliding headrest support arm 705 on the headrest cross support arm 11. By monitoring the force change of the support arms during the rising process of the upper sliding neck pillow support arm 204 and the upper sliding headrest support arm 705, the maximum power output of the motor 208 is controlled.

[0046] Embodiment 2: Refer to the appendix Figure 17As shown, the lifting of the neck pillow lifting system 2 is replaced by the use of a stepping motor 120 to drive the screw rod 121 to promote the movement of the lower sliding neck pillow support arm 202; the lower sliding neck pillow support arm 202 of the neck pillow cross support arm 10 is connected between the screw rod fixing seat slide rail 1221 and the flange guide shaft support 124 of the screw rod fixing seat 122 through a sliding shaft 123, and the flange guide shaft support 124 is assembled on the screw rod 121, and the screw rod 121 is connected to the lower sliding neck pillow support arm 202 of the neck pillow cross support arm 10 through a sliding shaft 123. The two ends are assembled on the bearings of the screw fixing seat 122, and the other end of the screw 121 is connected to the rotating shaft of the stepper motor 120, and the stepper motor 120 is fixed to the screw fixing seat 122, thereby forming a new neck pillow lifting system; the lifting of the new neck pillow lifting system is achieved by rotating the screw 121 by the stepper motor 120, and the rotation of the screw 121 drives the movement of the flange guide shaft support 124, while the sliding shaft 123 drives the movement of the lower sliding neck pillow support arm 202, thereby the new neck pillow lifting system realizes the lifting function.

[0047] Embodiment 3: See attached Figure 18 As shown, the self-locking of the cable storage wheel 225 is achieved by eliminating the design of the deadweight rod 226 and directly adopting the change of the shape of the iron rod 2091 of the electromagnet 209 and the tooth groove 2241 of the storage wheel gear 224 for limiting; the iron rod 2091 of the electromagnet 209 is changed into an electromagnet special-shaped rod 130, and one end of the guide rod 1301 of the electromagnet special-shaped rod 130 extends into the bearing fixing seat 210 and the other end extends into the side wall of the lower neck pillow support arm sliding seat 214; when the cable storage wheel 225 is in the self-locking state, the electromagnet 209 is in the iron rod spring 2 Under the action of the elastic force of 092, the guide rod limiting tooth 1302 of the electromagnet shaped rod 130 is stuck in the tooth groove 2241 of the storage wheel gear 224 to realize the self-locking state of the cable storage wheel 225; the unlocking of the cable storage wheel 225 is when the electromagnet 209 is in the working state, and the strong magnetic attraction pulls the electromagnet shaped rod 130 backwards to realize the backward movement of the guide rod 1301 and the guide rod limiting tooth 1302 is disengaged from the tooth groove 2241, which can make the cable storage wheel 225 rotate normally, thereby realizing the unlocking function of the cable storage wheel 225.

[0048] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, the present invention can also be improved and modified without departing from the principle of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A pillow with automatic height adjustment, comprising a neck pillow assembly, a head pillow assembly and a base assembly; the neck pillow assembly is composed of a neck pillow lifting system and a neck pillow bracket assembly, the neck pillow bracket assembly is provided with a heating film, a heating film, a neck pillow bracket, a pressure pipe, a vibration motor and a neck pillow guide body; the head pillow assembly is composed of a head pillow double lifting system and a head pillow bracket assembly, the head pillow bracket assembly is provided with a soft mesh body, a head pillow bracket, a pressure sampling tube and a head pillow guide body: Features: The neck pillow lifting system is provided with at least one neck pillow cross support arm, and the labor-saving design of the neck pillow cross support arm is realized by utilizing the lever principle; pulley blocks are provided at the bottom arm ends of the neck pillow cross support arms, and at least one cable between the pulley blocks connects all the pulleys in a winding manner to form a labor-saving cable pulley block; the cable section is fixed on the cable collection system, and the cable collection system is provided with at least one motor for driving; The cable collection system comprises a cable storage wheel self-locking device, a storage wheel gear is provided on the side of the cable storage wheel of the cable storage wheel self-locking device, and at least one rotatable deadweight rod is provided on the top of the storage wheel gear, and self-locking is achieved by the latching teeth of the deadweight rod being engaged in the tooth groove of the storage wheel gear; a neck pillow support arm tension spring is provided between the motor fixing bracket and the neck pillow support arm of the cable collection system, and the neck pillow support arm tension spring can make the neck pillow support assembly maintain the set required height when any external force acts on it, and at the same time, the neck pillow support arm tension spring can lower the neck pillow support assembly when the cable storage wheel is unlocked; The heating film is fixed on the neck pillow bracket, and the heating film is provided with at least one heating film which is spiraled in an S-shape in a preset T-slot of the heating film, and a pressure pipe is provided on the top of the heating film; the vibration motor is fixed in the middle position of the lower side of the neck pillow bracket, and an arc-shaped elastic body is provided to fix the vibration motor at the bottom of the neck pillow bracket; at least two neck pillow guide rails are provided at the connection position between the neck pillow bracket assembly and the base, and the neck pillow guide rails assist the neck pillow bracket assembly to move only to the upper and lower positions when it is lifted; The headrest assembly includes a headrest bracket assembly and a headrest double lifting system; the headrest bracket is configured as a mouth-shaped hollow structure, and a soft mesh body is provided in the mouth-shaped hollow structure area, and at least one round hole handle is provided on both sides of the soft mesh body, and the round holes of the round hole handle are used to install a pressure sampling tube, and the pressure of the pressure sampling tube is used to monitor the pressure of the soft mesh body; a headrest reinforcement bracket is provided at the bottom of the headrest bracket assembly, which is fixed to the headrest bracket by screws, and there is a certain distance between the headrest reinforcement bracket and the soft mesh body; At least four headrest guide rails are provided at the connection position between the headrest bracket assembly and the base, and two headrest guide rails are provided on both sides of the headrest bracket assembly; the stroke of the headrest guide rail is shorter than that of the neck pillow guide rail; The double lifting system of the headrest refers to the use of two headrest cross support arms, with each headrest cross support arm being arranged on both sides of the headrest bracket assembly, and the two headrest cross support arms are each provided with the same support arm sliding connecting shaft at the two lower sliding headrest support arms, and a pulley group docking seat is provided in the middle of the two support arm sliding connecting shafts to be fixed thereto to form a connecting shaft body; the connecting shaft body is connected to the cable collecting system through a cable, and the cable collecting system is provided with at least one motor for driving to realize the lifting and lowering of the headrest bracket assembly; two compression springs are provided between the pulley group docking seat and the headrest base fixing frame, and the compression springs will shrink or expand when the pulley group docking seat moves; a strain gauge sensor is provided at a certain position on the sliding support arm of the headrest to monitor the stress condition of the sliding support arm of the headrest.

2. The pillow with automatic height adjustment according to claim 1, characterized in that: The raising of the neck pillow bracket assembly is achieved by collecting the cables through a cable storage wheel driven by a motor, so that the upper sliding neck pillow support arm and the lower sliding neck pillow support arm move toward the middle of the cross shaft for lifting, and the weight rod clamping teeth are raised in an unlocked state during the rotation of the motor; the lowering of the neck pillow bracket assembly is achieved by pulling the two support arms outward by the tension of the neck pillow support arm tension spring, at which time the electromagnet raises the weight rod clamping teeth and the cable storage wheel releases the cable; the upper sliding neck pillow support arm is provided with a strain gauge sensor at a specific position to monitor the stress condition of the support arm for controlling the power output of the motor to avoid overload output of the motor; each rotating shaft on the neck pillow cross support arm is provided with a bushing, which can prevent the side wall of the shaft hole from deformation when the upper sliding neck pillow support arm and the lower sliding neck pillow support arm are subjected to stress; the lower neck pillow support arm rotating seat and the cable pulley group are both provided with two cable pulleys.

3. The pillow with automatic height adjustment according to claim 1, characterized in that: The self-locking of the cable storage wheel is limited by the storage wheel gear, and the self-locking is achieved by the self-weight rod clamping teeth provided at the bottom of the self-weight rod into the tooth groove of the storage wheel gear; an electromagnet is provided on one side of the self-weight rod and connected to it to realize the upward rotation of the self-weight rod clamping teeth to unlock the cable storage wheel, and the downward rotation of the self-weight rod clamping teeth to achieve self-locking of the cable storage wheel; the cable is fixed to the axis of the rotating shaft set by the cable storage wheel by a fastening nail.

4. The pillow with automatic height adjustment according to claim 1, characterized in that: The neck pillow support assembly and the base are provided with at least two neck pillow guide rails, which can ensure that the neck pillow support assembly only moves up and down. The neck pillow guide body and the neck pillow guide rail are made of different materials, and the neck pillow guide body is made of plastic material to ensure the smoothness of the guidance and avoid the collision between the two to generate noise when the vibration motor vibrates.

5. The pillow with automatic height adjustment according to claim 1, characterized in that: The heating film is provided with at least one heating film which is coiled in an S shape in a T-shaped groove preset in the heating film, and a plurality of temperature monitoring and collecting points are provided at corresponding positions inside the heating film. Controlling the heating of the heating film through temperature monitoring is beneficial to ensuring that the temperature of each point is the same, thereby avoiding local high temperature; the heating film is clamped on the top of the neck pillow bracket by a cylindrical buckle, and the contact surface between the heating film and the neck pillow bracket is set to a rough surface, which has an anti-slip effect.

6. The pillow with automatic height adjustment according to claim 1, characterized in that: The lifting height memory of the neck pillow bracket assembly and whether the user is in place are determined by monitoring the pressure through the pressure tube on the top of the heating film. The pressure collected by the pressure tube is used to determine the position of the pillow's main control chip and provide feedback to control the lifting height of the motor.

7. The pillow with automatic height adjustment according to claim 1, characterized in that: The vibration motor is arranged in the middle position of the cervical pillow bracket to ensure the most concentrated energy transmission position when the cervical vertebrae are in contact with the cervical pillow bracket. The vibration of the vibration motor realizes micro-vibration of the cervical pillow bracket assembly to achieve regular massage of the cervical vertebrae.

8. The pillow with automatic height adjustment according to claim 1, characterized in that: The raising and lowering of the headrest bracket assembly is achieved by at least two headrest cross-support arms moving in the same direction at the same time, and the two headrest cross-support arms are located on both sides of the headrest bracket assembly; the two headrest cross-support arms are each provided with a support arm sliding connection shaft which is connected to each other through a pulley block docking seat to realize the same coupling body, and the movement of the coupling body is driven by the same motor to achieve the raising of the two headrest cross-support arms; the pulley block docking seat is provided with three cable pulleys; the lowering of the two headrest cross-support arms is achieved by pushing the pulley block docking seat with the elastic force of two compression springs, while the cable storage system is in an unlocked state, and the motor rotates the cable storage wheel to release the cable.

9. The pillow with automatic height adjustment according to claim 1, characterized in that: A soft mesh body is provided in the middle of the headrest bracket to fill the hollow position of the mouth of the headrest bracket, and the soft mesh is formed by many square gaps; a round hole handle is provided in the middle position of each side of the soft mesh body, and the round hole handle and the headrest bracket are in a suspended state, and a pressure sampling tube is provided in the round hole of the round hole handle, and the two sides of the pressure sampling tube are in contact with the headrest bracket; the headrest reinforcement bracket is arranged on the lower side of the mouth gap of the headrest bracket, fixed by screws, and set at a certain distance from the soft mesh body.

10. The pillow with automatic height adjustment according to claim 1, characterized in that: The headrest bracket assembly is respectively provided with two headrest guide slide rails on both sides; the arc top surface of the neck pillow bracket assembly is higher than the arc top surface of the headrest side, and at the same time, it is ensured that the top surface of the neck pillow bracket assembly is the highest in height position than the top surface of the headrest bracket assembly when in the highest and lowest positions, so the stroke of the headrest guide slide rail is shorter than the stroke of the neck pillow guide slide rail.

11. The pillow with automatic height adjustment according to claims 1, 2 and 8, characterized in that: The neck pillow lifting system is replaced by a motor driving a cable to drag the lower sliding neck pillow support arm to achieve lifting, and a stepping motor is used to drive a screw rod to push the movement of the lower sliding neck pillow support arm.

12. The pillow with automatic height adjustment according to claims 1 and 8, characterized in that: The headrest bracket assembly uses a single large-span support arm instead of two headrest cross support arms to achieve the lifting function of the headrest bracket assembly; the fixing seat of the single large-span support arm is arranged at a symmetrical point on the outer circle contour line of the headrest bracket assembly with the center point as the center.

13. The pillow with automatic height adjustment according to claims 1 and 8, characterized in that: The headrest bracket assembly cancels the lifting and lowering system and is set to be directly fixed to the base, retaining only the lifting function of the neck pillow bracket assembly. At this time, the total height of the neck pillow bracket assembly needs to be reduced, which can save two upgrading systems and guide rails to achieve cost saving. At the same time, the pillow also has the function of automatically adjusting the height of the neck pillow, which has the effect of protecting the cervical spine.

14. The pillow with automatic height adjustment according to claims 1, 4 and 10, characterized in that: The final height of the neck pillow bracket assembly and the final height of the headrest bracket assembly can be set to the same height. At this time, the guide rails are designed with the same height to achieve a shared guide rail.

15. The pillow with automatic height adjustment according to claims 1 and 3, characterized in that: The self-locking of the cable storage wheel eliminates the design of the deadweight rod and directly uses the iron rod shape of the electromagnet and the tooth groove of the storage wheel gear for limiting. At this time, the electromagnet pull rod needs to be designed to cooperate with the storage wheel gear separately and increase the magnetic attraction of the electromagnet.

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