A headrest provided with an intelligent plenum support device

CN224776473UActive Publication Date: 2026-09-22YANTAI SANQI INTELLIGENT TECH CO LTD
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Patent Information

Application Number
CN202522120835.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-02
Publication Date
2026-09-22
Estimated Expiration
2035-10-02

AI Technical Summary

Technical Problem

这些头枕的支撑高度和硬度是固定的,无法适应使用者在睡眠中频繁变换的姿势(如平躺与侧卧)

Benefits of technology

1.全自动智能调节:基于传感器信号自动识别用户姿态,无需人工干预,在睡眠过程中无缝切换支撑模式,真正实现智能化。

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a headrest equipped with an intelligent pressure-boosting support device, comprising a headrest body and a supporting base plate. A pressure-boosting support device is provided between the headrest body and the supporting base plate. The pressure-boosting support device is controlled by an intelligent controller, which is connected to a sensor located on the upper side of the headrest body. The pressure-boosting support device is connected to a pressure-controlled circulation system via a circulation pipe, which is equipped with multiple solenoid valves electrically connected to the intelligent controller. This utility model automatically identifies the user's posture based on sensor signals, requiring no manual intervention, and seamlessly switches support modes during sleep, truly achieving intelligent operation. It quickly and accurately adjusts the headrest height and firmness to meet the different needs of cervical spine height when lying flat or on one's side, effectively maintaining the natural physiological curvature of the cervical spine, improving sleep quality, and preventing cervical spine problems.
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Description

Technical Field

[0001] This utility model belongs to the field of smart home and ergonomic products technology, specifically relating to a headrest that can automatically and intelligently adjust the support height and support firmness according to the user's sleeping posture. Background Technology

[0002] Traditional headrests or pillows often use fixed fillings such as sponge, memory foam, down, or buckwheat hulls. These headrests offer a fixed support height and firmness, making them unsuitable for adapting to the frequent changes in sleeping postures (such as lying flat or on one's side). When a person changes from lying flat to lying on their side, the width of the shoulders significantly increases the actual height the head needs to support. A headrest with a fixed height can cause the user's head to tilt and the cervical spine to bend, easily leading to neck discomfort and stiff neck with prolonged use.

[0003] To address this issue, a small number of height-adjustable headrests have appeared on the market, but most rely on manual filling or mechanical adjustments, failing to provide seamless, automatic adjustment during sleep. Some products have attempted to use air or water bags as adjustment media, but the high fluidity of gases and liquids makes precise control and rapid response difficult, easily leading to unstable support, excessive envelopment, and slow response, resulting in poor comfort and an unsatisfactory user experience.

[0004] Therefore, there is an urgent need in this field for a smart headrest that can sense changes in user posture in real time and quickly, accurately, and automatically adjust its support performance while maintaining a stable sense of support. Utility Model Content

[0005] To address the aforementioned issues, this invention provides a headrest equipped with an intelligent pressure-boosting support device. This headrest uses sensors to monitor head pressure distribution in real time and an intelligent control system to drive an air pressure circulation system, dynamically adjusting the support height and firmness of different areas of the headrest. This provides optimal and most comfortable support for the head and cervical spine regardless of whether the user is lying flat or on their side.

[0006] The technical solution of this utility model is implemented as follows: A headrest equipped with an intelligent pressure-boosting support device includes a headrest body and a supporting base plate. The pressure-boosting support device is provided between the headrest body and the supporting base plate. The pressure-boosting support device is controlled by an intelligent controller. The intelligent controller is connected to a sensor, which is located on the upper side of the headrest body. The pressure-boosting support device is connected to a pressure-controlled circulation system through a circulation pipe. The circulation pipe is equipped with multiple solenoid valves, which are electrically connected to the intelligent controller. Preferably, the headrest body includes a support pad, and the pressure support device includes at least one pressure support cylinder. The upper end of the pressure support cylinder is connected to the support pad, the lower end is connected to the support base plate, and it is connected to the pressure control circulation system through a circulation pipe. Preferably, the upper and lower ends of the pressurizing support cylinder are respectively provided with an upper cover and a lower cover, and a control spring is provided between the upper cover and the lower cover. The control spring is connected to the cylinder wall of the pressurizing support cylinder by an elastic strap. Preferably, the pressure-boosting support device further includes a pressure-boosting support tube coiled around the upper side of the support pad, the pressure-boosting support tube being connected to the pressure control circulation system via a circulation pipe, and an elastic pillowcase covering the pressure-boosting support tube, the four sides of which are connected to the support base plate. Preferably, the pressure boosting support device further includes a pull rope positioner. The support base plate is provided with a roller for guiding the positioning pull rope. The positioning pull rope is wound around the roller. One end of the positioning pull rope is obliquely connected to the side or bottom of the support pad, and the other end is connected to the pull rope positioner. The pull rope positioner is provided with a gas-driven pneumatic reel and a pull rope recorder for measuring the length of the pull rope. The other end of the positioning pull rope is wound around the pneumatic reel. The pneumatic reel is connected to the pressure control circulation system through a circulation pipe. The pull rope recorder is connected to the intelligent controller via a signal. Preferably, the pressure control circulation system includes a high-pressure tank, a low-pressure tank, a booster pump, and a pressure controller. The high-pressure tank and the low-pressure tank are connected to the booster pump via a circulation pipe. The high-pressure tank and the low-pressure tank are respectively connected to the booster support device via a solenoid valve and a three-way connector. The pressure controller and the booster pump are both electrically connected to the intelligent control electromechanical system. Preferably, the support base plate is provided with a connection hole, and the circulation pipe passes through the connection hole to connect with an external pressure control circulation system.

[0007] The beneficial effects of this utility model are as follows: Compared with the prior art, this utility model has the following significant advantages: 1. Fully automatic intelligent adjustment: Based on sensor signals, it automatically recognizes the user's posture without manual intervention, and seamlessly switches support modes during sleep, truly achieving intelligent control.

[0008] 2. Precise and comfortable support: The headrest height and firmness can be quickly and precisely adjusted to meet the different needs of head and cervical spine height when lying flat or on one's side, effectively maintaining head height and the natural physiological curvature of the cervical spine, improving sleep quality and preventing cervical spine problems.

[0009] 3. Rapid and stable response: It adopts gas transmission, which has a much faster response speed than liquid, and the pull rope positioning system ensures the stability and accuracy of the adjustment process, avoiding the shaking and sinking feeling of traditional air cushion headrests.

[0010] 4. Rich and adjustable functions: Not only can the overall height be adjusted, but the surface softness can also be adjusted independently. It can also preset multiple support modes (such as reading mode, snoring intervention mode, etc.) through software to meet personalized needs.

[0011] 5. Reliable and durable structure: Modular design, simple and reliable mechanical structure, pollution-free and low-noise pneumatic system, easy maintenance, and long service life.

[0012] 6. Environmentally friendly and healthy: It reduces the reliance on traditional polyurethane foam and other chemical filler materials, making it more environmentally friendly and easier to clean. Attached Figure Description

[0013] Figure 1 This is a front sectional view of the overall structure of this utility model; Figure 2 This is a top sectional view of the present invention.

[0014] Parts Description: 1. Headrest body; 2. Support base plate; 3. Intelligent controller; 5. Sensor; 6. Circulation pipe; 7. Support pad; 8. Solenoid valve; 9. Pressure boosting support cylinder; 10. Upper cover; 11. Lower cover; 12. Control spring; 13. Elastic pull strap; 15. Connecting hole; 16. Elastic pillowcase; 18. Pressure boosting support cylinder; 19. Positioning pull rope; 21. Roller; 22. Pull rope positioner; 23. Pneumatic reel; 25. High-pressure tank; 26. Low-pressure tank; 27. T-connector; 28. Booster pump; 29. ​​Pressure controller; 30. Pull rope recorder. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] See attached document Figure 1-2A headrest equipped with an intelligent pressure-boosting support device includes a headrest body 1, a support base plate 2 below the headrest body 1, and a pressure-boosting support device between the headrest body 1 and the support base plate 2. The pressure-boosting support device is controlled by an intelligent controller 3. The intelligent controller 3 is connected to a sensor 5 via a circuit. The sensor 5 is connected to the upper side of the headrest body 1. The pressure-boosting support device is connected to a pressure-controlled circulation system via a circulation pipe 6. Multiple solenoid valves 8 are connected to the circulation pipe 6, and the solenoid valves 8 are connected to the intelligent controller 3 via a circuit. The headrest body 1 includes a support pad 7, and the pressure-boosting support device includes a pressure-boosting support cylinder 9. The pressure-boosting support cylinder 9 is connected to the pressure-controlled circulation system via the circulation pipe 6. The upper end of the pressure-boosting support cylinder 9 is connected to the support pad 7, and the lower end is connected to the support base plate 2. The pressure-boosting support cylinder 9 has an upper cover 10 and a lower cover 11 at both its upper and lower ends. A control spring 12 connects the upper cover 10 and the lower cover 11. An elastic band 13 connects the control spring 12 to the cylinder wall of the pressure-boosting support cylinder 9. The upper side of the upper cover 10 is connected to the support pad 7, and the lower side is connected to the upper end of the pressure-boosting support cylinder 9. The upper side of the lower cover 11 is connected to the lower end of the pressure-boosting support cylinder 9, and the lower side is connected to the support base plate 2. The pressure-boosting support device includes a pressure-boosting support tube 18, which is connected to the pressure control circulation system through a circulation pipe 6. The pressure-boosting support tube 18 is coiled around the upper side of the support pad 7, and an elastic pillowcase 16 covers the pressure-boosting support tube 18. The four sides of the elastic pillowcase 16 are connected to the support base plate 2. The pressurization support device includes a pull rope positioner 22. A roller 21 is connected to the support base plate 2. A positioning pull rope 19 is connected to the roller 21. One end of the positioning pull rope 19 is connected to the support pad 7 with oblique tension, and the other end is connected to the pull rope positioner 22. The pull rope positioner 22 is equipped with a pneumatic winding wheel 23 and a pull rope recorder 30. The other end of the positioning pull rope 19 is wound and connected to the pneumatic winding wheel 23. The pull rope recorder 30 is connected to the positioning pull rope 19. The pull rope recorder 30 is connected to the intelligent controller 3 through a circuit. The pneumatic winding wheel 23 is connected to the pressure control circulation system through a circulation pipe 6. The pressure control and circulation system includes a high-pressure tank 25, a low-pressure tank 26, a booster pump 28, and a pressure controller 29. The high-pressure tank 25 and the low-pressure tank 26 are connected to the booster pump 28 via a circulation pipe 6. Both the high-pressure tank 25 and the low-pressure tank 26 are connected to the pressure controller 29. The high-pressure tank 25 and the low-pressure tank 26 are respectively connected to the booster support cylinder 9, the booster bearing tube 18, and the pull rope positioner 22 via the circulation pipe 6, the solenoid valve 8, and the three-way valve 27. The pressure controller 29 and the booster pump 28 are both connected to the intelligent controller 3 via a circuit. The support base plate 2 is provided with a connection hole 15, and the circulation pipe 6 is connected to the connection hole 15.

[0018] Specifically, after powering on the intelligent controller 3, the intelligent controller 3 receives the pressure signal transmitted by the sensor 5, processes it, and controls the operation of the solenoid valve 8, booster pump 28, pressure controller 29, and pull rope recorder 30, etc. High-pressure gas is supplied from the high-pressure tank 25 to the booster support cylinder 9 through the circulation pipe 6 and the solenoid valve 8. After the booster support cylinder 9 is pressurized, it drives the support pad 7 to rise. When the headrest body 1 is at the required support height when the human body is lying flat or on its side, the gas supply stops. When the support pad 7 needs to be lowered, the pressure is reduced by depressurizing the booster support cylinder 9 and the valve is closed. The high-pressure gas in the pressurized support cylinder 9 flows back to the low-pressure tank 26 through the three-way valve, another solenoid valve 8, and the return circulation pipe 6. After the pressurized support cylinder 9 reaches the required descent height, the other solenoid valve 8 closes, and the height of the support pad 7 stabilizes. Through the pressurization or depressurization process of the gas in the pressurized support cylinder 9, the pressurized support device achieves the function of intelligently adjusting the support height of the headrest body 1, realizing the purpose of allowing the user to adjust the support height and firmness of the headrest body 1 at any time according to their requirements. By setting an upper cover 10 and a lower cover 11 at the upper and lower ends of the pressure-boosting support cylinder 9 respectively, it is easier to connect the pressure-boosting support cylinder 9 with the supporting base plate 2 and the supporting pad 7, facilitating the maintenance and repair of the pressure-boosting support cylinder 9. By setting a control spring 12 between the upper cover 10 and the lower cover 11, and connecting the control spring 12 and the pressure-boosting support cylinder 9 with the elastic strap 13 respectively, the middle part of the pressure-boosting support cylinder 9 can be prevented from deforming or folding. The control spring 12 also has a certain auxiliary support function. A pressure-boosting support tube 18 is set above the supporting pad 7. After filling the pressure-boosting support tube 18 with an appropriate amount of pressurized gas through the circulation pipe 6 and the solenoid valve 8, the pressure-boosting support tube 18 will have a good effect of soft support for the head, which can reduce the use of easily deformable and polluting sponges and other materials, achieving a more environmentally friendly headrest body 1.

[0019] By setting up a pull cord positioner 22 and multiple positioning pull cords 19, the support height of the support pad 7 can be determined by adjusting the length of the positioning pull cords 19. The oblique pulling force of the multiple positioning pull cords 19 on the support pad 7 can reduce the swaying in the left-right or front-back direction when using the headrest, which is conducive to improving the comfort support effect of the headrest body 1. After the support height of the support pad 7 is positioned, the pressure of the gas supplied to the pressurized support cylinder 9 can be increased or decreased to adjust the headrest body 1 to have a soft or firm support effect. The function of the pull cord positioner 22 is to drive the pneumatic roller 23 to rotate through the high-pressure gas supplied by the circulation pipe 6 and another solenoid valve 8. It can also lock the rotation of the pneumatic roller 23 through a pressure valve on the pull cord positioner 22. When the support pad 7 rises or falls, the pull cord 19 is connected to the pull cord recorder 30. The pull cord recorder 30 transmits the movement distance of the positioning pull cord 19 to the intelligent controller 3. The intelligent controller 3 controls the opening and closing of multiple solenoid valves 8 to achieve timely control of the forward or reverse rotation or locking function of the pneumatic roller 23. The pressure controller 29, under the control of the intelligent controller 3, adjusts the gas pressure in the high-pressure tank 25 and the low-pressure tank 26 in a timely manner. Through the combination of the above-mentioned pressurized support device and the intelligent controller 3, the intelligent adjustment process enables the headrest body 1 to have intelligent adjustment of height and soft or firm support, providing a comfortable support effect for the user's head. The headrest of this utility model has a simple structure, is pollution-free and noiseless, and is suitable for users to rest and sleep better. It is especially suitable for teenagers or the elderly, and has the characteristics of wide adaptability and environmental protection.

[0020] The pressurized support cylinder is the core component for adjusting the overall height of the headrest. It includes at least one vertically positioned pressurized support cylinder 9, with its upper end connected to the support pad 7 via an upper cover 10 and its lower end connected to the support base plate 2 via a lower cover 11. The pressurized support cylinder 9 has a hollow interior and is connected to a pressure-controlled circulation system via a circulation pipe 6. When high-pressure gas is injected into it, the cylinder expands and elongates, lifting the support pad 7 and increasing the headrest height; when the gas is released, the cylinder contracts, and the headrest height decreases. To ensure that the pressurized support cylinder 9 remains straight during inflation and deflation and to prevent bending or folding in the middle, a control spring 12 is installed between the upper and lower covers, and the control spring 12 is connected to the cylinder wall of the pressurized support cylinder 9 via an elastic strap 13, forming a radial constraint.

[0021] The pressurized support tubes are used to optimize the contact comfort of the headrest surface. They consist of flexible pressurized support tubes 18 coiled or arrayed on the upper surface of the support pad 7, covered by an elastic pillowcase 16. The pressurized support tubes 18 are also connected to the pressure-controlled circulation system via circulation tubes 6. By filling these tubes with gas at different pressures, the softness of the top layer of the headrest can be adjusted, making it more conform to the contours of the head and avoiding the pressure caused by overly firm support.

[0022] The positioning pull cord 19 is used to improve the stability and accuracy of the headrest's shape changes. It has multiple rollers 21 arranged along the edge of the support base plate 2, with a positioning pull cord 19 wound around each roller 21. One end of the positioning pull cord 19 is obliquely connected to the side or bottom of the support pad 7 at a certain angle, and the other end is connected to an integrated pull cord positioner 22. The pull cord positioner 22 internally contains a pneumatic reel 23 and a pull cord recorder 30. The pneumatic reel 23 is gas-driven and responsible for extending and retracting the positioning pull cord 19; the pull cord recorder 30 (such as an encoder) accurately measures the extension and retraction length of the pull cord. By coordinating the control of the lengths of multiple positioning pull cords 19, the tilt angle and horizontal height of the support pad 7 can be finely adjusted to ensure smooth and stable operation during use.

[0023] The intelligent control system is the "brain" of the headrest, comprising an intelligent controller 3 (such as a microprocessor MCU) and sensors 5 (such as pressure distribution sensors or thin-film pressure sensor arrays) integrated on or inside the headrest. Sensors 5 collect pressure signals from the head in contact with the headrest in real time and transmit the data to the intelligent controller 3. The intelligent controller has a built-in algorithm that determines whether the user is lying flat, on their left side, or on their right side based on the pressure distribution pattern, and generates corresponding control commands.

[0024] The pressure-controlled circulation system is the "power source" of the headrest, comprising a high-pressure tank 25, a low-pressure tank 26, a booster pump 28, and a pressure controller 29. The booster pump 28 pumps gas from the low-pressure tank 26 into the high-pressure tank 25 to maintain system pressure. The high-pressure tank 25 provides pressurized gas, while the low-pressure tank 26 recovers any released gas. The pressure controller 29 precisely monitors and regulates the pressure of both gas tanks.

[0025] After the user lies down, their head exerts pressure on sensor 5. The intelligent controller 3 receives the pressure distribution map transmitted by sensor 5. For example, when the pressure is evenly distributed, it is determined to be lying flat; when the pressure is significantly concentrated on the left side, it is determined to be lying on the left side.

[0026] Scenario A: Changing from lying flat to lying on the left side 1. Signal detection and processing: Sensor 5 detects that the pressure center has shifted to the left and transmits the signal to the intelligent controller 3.

[0027] 2. Height Adjustment Command: The intelligent controller 3 calculates the required height to be raised on the left side of the headrest. It first sends a command to the pull rope positioner 22, controlling the pneumatic roller 23 connected to the left side to release the positioning pull rope 19 appropriately, preparing for the left side to rise.

[0028] 3. Pressurization Execution: The intelligent controller 3 opens the solenoid valve 8 connected to the left pressurization support cylinder 9. High-pressure gas enters the left pressurization support cylinder 9 from the high-pressure tank 25 through the circulation pipe 6 and the opened solenoid valve 8. The gas pressure inside the cylinder increases, the cylinder expands axially, and pushes the left side of the upper cover 10 and the support pad 7 upward.

[0029] 4. Stability Control: During this process, the rope recorder 30 monitors the movement length of the positioning rope 19 in real time and feeds it back to the intelligent controller 3. When the preset height is reached, the intelligent controller 3 closes the corresponding solenoid valve 8 and stops the air supply. At the same time, it may control the pneumatic reel 23 to slightly reverse, tighten the positioning rope 19, and stabilize the left side of the support pad 7 at the new height to prevent shaking.

[0030] 5. Hardness fine adjustment (optional): At the same time, the intelligent control machine 3 can fill an appropriate amount of gas into the pressurized support tube 18 coiled on the left side of the upper surface of the support pad 7, making it softer and better fit the side of the head.

[0031] Scenario B: Returning from side-lying to supine position 1. Sensor 5 detected that the pressure distribution tends to be uniform.

[0032] 2. The intelligent controller 3 issues a lowering command. It opens the solenoid valve 8 of the return pipeline connected to the left pressure support cylinder 9, and may simultaneously control the pneumatic reel 23 to retract the positioning pull rope 19.

[0033] 3. The high-pressure gas inside the left-side pressurized support cylinder 9 is discharged to the low-pressure tank 26 through the circulation pipe 6 and the solenoid valve 8. As the gas pressure inside the cylinder decreases, the cylinder contracts under the auxiliary contraction force of the control spring 12 and the weight of the support pad 7, causing the left side of the headrest to drop in height.

[0034] 4. The rope recorder 30 monitors the descent process. When the desired height for lying flat is reached, the solenoid valve 8 is closed to complete the adjustment.

[0035] Users can preset headrest modes via a mobile app or a bedside switch. For example, selecting "reading mode" will cause the smart controller 3 to inflate all the pressurized support cylinders 9 appropriately, raising the overall headrest height for easier reading while leaning against the headboard. Selecting "zero pressure mode" will control the pressurized support cylinders 18 to maintain a lower air pressure, providing an extremely soft and enveloping feel.

[0036] The pressure controller 29 continuously monitors the pressure of the high-pressure tank 25 and the low-pressure tank 26. When the pressure in the high-pressure tank is insufficient, the intelligent controller 3 starts the booster pump 28 to pump gas from the low-pressure tank into the high-pressure tank; when the pressure in the low-pressure tank is too high, the system can release gas through a safety valve.

[0037] In summary, this invention achieves automated, precise, and personalized adjustment of the headrest's support performance through the close integration of pneumatic drive and intelligent control, effectively improving sleep comfort and health.

[0038] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A headrest equipped with an intelligent pressure-boosting support device, comprising a headrest body (1) and a support base plate (2), characterized in that: A pressure-boosting support device is provided between the headrest body (1) and the supporting base plate (2). The pressure-boosting support device is controlled by an intelligent controller (3). The intelligent controller (3) is connected to a sensor (5), which is located on the upper side of the headrest body (1). The pressure-boosting support device is connected to a pressure control circulation system through a circulation pipe (6). The circulation pipe (6) is equipped with multiple solenoid valves (8), which are electrically connected to the intelligent controller (3).

2. A headrest equipped with an intelligent pressure-boosting support device according to claim 1, characterized in that: The headrest body (1) includes a support pad (7), and the pressure boosting support device includes at least one pressure boosting support cylinder (9). The upper end of the pressure boosting support cylinder (9) is connected to the support pad (7), the lower end is connected to the support base plate (2), and it is connected to the pressure control circulation system through the circulation pipe (6).

3. A headrest equipped with an intelligent pressure-boosting support device according to claim 2, characterized in that: The pressure-boosting support cylinder (9) is provided with an upper cover (10) and a lower cover (11) at its upper and lower ends, respectively. A control spring (12) is provided between the upper cover (10) and the lower cover (11). The control spring (12) is connected to the cylinder wall of the pressure-boosting support cylinder (9) by an elastic strap (13).

4. A headrest equipped with an intelligent pressure-boosting support device according to claim 1, characterized in that: The pressure boosting support device also includes a pressure boosting support tube (18) coiled around the upper side of the support pad (7). The pressure boosting support tube (18) is connected to the pressure control circulation system through the circulation pipe (6). An elastic pillowcase (16) covers the top of the pressure boosting support tube (18). The four sides of the elastic pillowcase (16) are connected to the support base plate (2).

5. A headrest equipped with an intelligent pressure-boosting support device according to claim 1, characterized in that: The pressurization support device also includes a pull rope locator (22). The support base plate (2) is provided with a roller (21) for guiding the positioning pull rope (19). The positioning pull rope (19) is wound around the roller (21). One end of the positioning pull rope (19) is obliquely connected to the side or bottom of the support pad (7), and the other end is connected to the pull rope locator (22). The pull rope locator (22) is provided with a gas-driven pneumatic reel (23) and a pull rope recorder (30) for measuring the length of the pull rope. The other end of the positioning pull rope (19) is wound around the pneumatic reel (23). The pneumatic reel (23) is connected to the pressure control circulation system through the circulation pipe (6). The pull rope recorder (30) is connected to the intelligent controller (3) via signal.

6. A headrest equipped with an intelligent pressure-boosting support device according to claim 1, characterized in that: The pressure control circulation system includes a high-pressure tank (25), a low-pressure tank (26), a booster pump (28), and a pressure controller (29). The high-pressure tank (25) and the low-pressure tank (26) are connected to the booster pump (28) through a circulation pipe (6). The high-pressure tank (25) and the low-pressure tank (26) are respectively connected to the pressure boosting support device through a solenoid valve (8) and a three-way connector (27). The pressure controller (29) and the booster pump (28) are both electrically connected to the intelligent controller (3).

7. A headrest equipped with an intelligent pressure-boosting support device according to claim 1, characterized in that: The supporting base plate (2) is provided with a connection hole (15), and the circulation pipe (6) passes through the connection hole (15) and is connected to the external pressure control circulation system.