A headrest intelligently adjusted by a hydraulic support device

Abstract

The utility model discloses a headrest of intelligent adjustment through hydraulic support device belongs to household supplies technical field. The headrest includes headrest body, combination bracket and sets up the hydraulic support device between both, and the hydraulic support device is connected liquid circulation system through circulation pipe, and is controlled by intelligent control machine such as sensor signal control solenoid valve, booster pump, circulating pump and compressor parts, realizes the intelligent lifting adjustment of headrest height and the accurate control of temperature. The hydraulic support device adopts double interface pressure pole structure, and cooperates roller groove, sliding roller, mobile recorder and positioning pull rope parts, realizes stable lifting and soft and hard support adjustable. The utility model has the advantages of reasonable structure, flexible adjustment, no noise, no pollution, support comfortable, temperature control intelligence, is applicable to modern intelligent household sleep system.

Description

Technical Field

[0001] This utility model belongs to the field of smart home and ergonomic products technology, specifically relating to a headrest with automatic adjustment function, and in particular a headrest system that achieves intelligent lifting, softness and firmness adjustment and temperature control through a hydraulic support device. Background Technology

[0002] Most existing headrest products use filling materials such as memory foam, down, and latex, whose support characteristics are fixed. During use, especially when changing positions while sleeping (such as from lying flat to lying on your side), the optimal support height required for the head will change. Traditional headrests cannot dynamically respond to this need, which can easily lead to cervical discomfort and affect sleep quality.

[0003] Furthermore, some high-end products attempt to achieve height adjustment through inflatable airbags, but this suffers from slow adjustment speed, high mechanical noise, unstable support, and an inability to precisely control the firmness. Regarding temperature control, heating wires or semiconductor cooling pads are typically used, which have drawbacks such as uneven heating and cooling, safety hazards, and high energy consumption.

[0004] Therefore, there is an urgent need in this field for a new type of smart headrest that can automatically adjust the support height and firmness in real time, quietly and smoothly, and provide uniform and safe temperature control to meet the higher requirements of modern consumers for sleep health and quality of life. Utility Model Content

[0005] To address the aforementioned problems, this invention provides a headrest that is intelligently adjustable via a hydraulic support device.

[0006] The technical solution of this utility model is implemented as follows: a headrest that is intelligently adjustable by a hydraulic support device includes a headrest body and a combined bracket located below it. A hydraulic support device is provided between the headrest body and the combined bracket. The hydraulic support device is controlled by an intelligent controller and connected to a liquid circulation system through a circulation pipe. Multiple solenoid valves are provided on the circulation pipe. The intelligent controller is connected to sensors and solenoid valves. Preferably, the hydraulic support device includes a dual-port pressure rod, which includes a cylinder and a support rod. A piston is provided inside the cylinder, and one end of the support rod is connected to the piston, while the other end is connected to the support plate of the headrest body through a sliding roller. The cylinder is provided with an inlet pipe and an outlet pipe, which are respectively connected to the circulation pipe. Preferably, the headrest body includes a support plate and an elastic support pad. The support plate has a roller groove on its lower side, and a sliding roller is disposed in the roller groove. A support temperature control tube is wound on the elastic support pad, and the support temperature control tube is connected to the circulation pipe through an inlet pipe C and an outlet pipe C. Preferably, the dual-interface pressure rod includes an auxiliary pressure rod A and a positioning pressure rod B. One end of the support rod A of the auxiliary pressure rod A is connected to the piston, and the other end is hinged to the cylinder side wall. The support rod B of the positioning pressure rod B is connected to a moving recorder. The moving recorder is mounted on a locking ruler and can move and lock along it. The moving recorder is connected to the support plate through a positioning pull rope. Preferably, the liquid circulation system includes a booster pump, a circulation pump, a booster tank, a negative pressure tank, a compressor, and a pressure control valve. The booster tank is connected to each inlet pipe through a supply pipe A, and the negative pressure tank is connected to each outlet pipe through a return pipe B. The compressor is connected to the booster tank for regulating the water temperature. Both the booster tank and the negative pressure tank are connected to a pressure control valve. Preferably, the combined bracket is connected to the mattress below, and the mattress has a groove and a connecting hole, through which the circulation tube passes. Preferably, the sensor includes a sensor disposed on the upper side of the headrest body and a sensor A disposed on the upper side of the mattress.

[0007] Compared with the prior art, the present invention has the following significant advantages: Intelligent adaptive adjustment: Sensors detect the user's posture in real time and automatically and accurately adjust the headrest height to keep the cervical spine in its natural physiological curvature at all times, providing optimal support.

[0008] Infinitely adjustable support: By controlling the pressure inside the hydraulic cylinder, the support can be adjusted from soft to firm, satisfying the personalized preferences of different users.

[0009] Uniform and comfortable temperature control: It adopts a liquid circulation temperature control system, which exchanges heat through a coiled support temperature control tube. The temperature distribution is uniform, avoiding local overcooling or overheating, and there is no draft, making it comfortable to wear.

[0010] Quiet and stable operation: The hydraulic transmission system operates with extremely low noise, and the lifting and lowering of the support rod is smooth and stable, so it will not disturb sleep.

[0011] Safe and reliable: The liquid circulation system is separated from the electrical components, and the temperature control part has no high-voltage electricity directly contacting the head, ensuring high safety. The system adopts a closed-loop design, is pollution-free, and has a long service life.

[0012] Integrated design: The entire system can be embedded in the mattress, with a clean appearance and without affecting the user experience of traditional bedding. Attached Figure Description

[0013] Figure 1 This is a front view and cross-sectional diagram of the overall structure of this utility model; Figure 2 This is a top sectional view of the present invention; Figure 3This is a side sectional view of the present invention.

[0014] Parts Description: 1. Headrest body; 2. Combined bracket; 3. Intelligent controller; 5. Circulation pipe; 5-1. Supply pipe A; 5-2. Return pipe B; 6. Solenoid valve; 7. Temperature control pipe support; 8. Sensor; 8-1. Sensor A; 9. Support plate; 10. Elastic pad; 11. Dual-interface pressure rod; 11-1. Auxiliary pressure rod A; 11-2. Positioning pressure rod B; 12. Cylinder; 12-1. Cylinder A; 12-2. Cylinder B; 13. Support rod; 13-1. Support rod A; 13-2. Support rod B; 15. Inlet pipe; 16. Outlet pipe; 18. Roller groove; 19. Sliding roller; 20. Roller; 21. Locking ruler; 22. Movement recorder; 23. Positioning pull rope. 25. Booster pump, 26. Circulation pump, 28. Booster tank, 29. Negative pressure tank, 30. Compressor, 31. Groove, 32. Connection hole, 33. Mattress, 35. Pressure control valve, 36. Headrest cover, 37. Hanging ornament. 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 1-3 The overall connection relationship of a headrest that is intelligently adjustable by a hydraulic support device is as follows: the combined bracket 2 is fixed in the groove 31 of the mattress 33, the headrest body 1 is mounted on the combined bracket 2 by the hydraulic support device, the intelligent controller 3 and the main components of the liquid circulation system (such as the booster pump 25, the booster tank 28, etc.) can be built into the mattress 33 or placed on the side of the bed, and the circulation pipe 5 passes through the connection hole 32 on the mattress 33 to connect the liquid circulation system with the hydraulic support device.

[0018] Specific connection relationship: A headrest that is intelligently adjustable by a hydraulic support device includes a headrest body 1, a combined bracket 2 provided below the headrest body 1, a hydraulic support device provided between the headrest body 1 and the combined bracket 2, the hydraulic support device being controlled and adjusted by an intelligent controller 3, the hydraulic support device being connected to a liquid circulation system through a circulation pipe 5, and multiple solenoid valves 6 being connected to the circulation pipe 5 respectively, the intelligent controller 3 being connected to the solenoid valves 6 and sensors 8 through a circuit, and the sensors 8 being connected to the upper side of the headrest body 1. The hydraulic support device includes a dual-port pressure rod 11, on which a cylinder 12 and a support rod 13 are provided. A piston is installed inside the cylinder 12, and a guide cap is installed at its top. One end of the support rod 13 passes through the guide cap and is fixedly connected to the piston. The bottom end of the cylinder 12 is connected to the combined bracket 2 through a connecting shaft. An inlet pipe 15 is connected to the side wall at the bottom end of the cylinder 12, and an outlet pipe 16 is connected to the side wall at the top end. The circulation pipe 5 includes an inlet pipe 15 and an outlet pipe 16. The headrest body 1 includes a support plate 9 and an elastic support pad 10. A roller groove 18 is provided on the lower side of the support plate 9, and a sliding roller 19 is connected inside the roller groove 18. The other end of the support rod 13 is connected to the sliding roller 19. The upper side of the support plate 9 is connected to the elastic support pad 10, and the upper side of the elastic support pad 10 is connected to the sensor 8. The elastic headrest cushion 10 has a support and temperature control pipe 7 coiled around its upper side. The support and temperature control pipe 7 is connected to an inlet pipe C and an outlet pipe C, which are respectively connected to a circulation pipe 5. A headrest cover 36 covers the top of the support and temperature control pipe 7, and all four sides of the headrest cover 36 are connected to the combined bracket 2 via hanging parts 37. The dual-interface pressure rod 11 includes an auxiliary pressure rod A11-1, the cylinder 12 includes a cylinder A12-1, and the support rod 13 includes a support rod A13-1. The auxiliary pressure rod A11-1 has a cylinder A12-1 and a support rod A13-1. The cylinder A12-1 is connected to the combined bracket 2 via a connecting shaft. One end of the support rod A13-1 passes through a guide cap and is fixedly connected to a piston; the other end is connected to one side of the cylinder 12 via a connecting shaft. Each cylinder A12-1 is connected to an inlet pipe A and an outlet pipe A.The dual-interface pressure rod 11 includes a positioning pressure rod B11-2; the cylinder 12 includes a cylinder B12-2; the bottom end of the cylinder B12-2 is connected to the combined bracket 2 via a connecting shaft; the support rod 13 includes a support rod B13-2; the combined bracket 2 is respectively connected to a roller 20 and a locking ruler 21; the locking ruler 21 is connected to a motion recorder 22; the motion recorder 22 is connected to the intelligent controller 3 via a circuit; the roller 20 is connected to a positioning pull rope 23; one end of the support rod B13-2 passes through the guide cover and is fixedly connected to the piston, and the other end is connected to the motion recorder 22; the bottom end of the cylinder B12-2 is connected to the combined bracket 2 via a connecting shaft; the cylinder B12-2 is connected to an inlet pipe and an outlet pipe; one end of the positioning pull rope 23 is connected to the motion recorder 22, and the other end is connected to the support plate 9. The liquid circulation system includes a booster pump 25, a circulation pump 26, a pressure control valve 35, a booster tank 28, and a negative pressure tank 29. The booster tank 28 and the negative pressure tank 29 are connected to the booster pump 25 and the circulation pump 26 respectively via circulation pipes 5. The circulation pipe 5 includes a supply pipe A5-1 and a return pipe B5-2. The booster tank 28 is connected to each inlet pipe via the supply pipe A5-1, and the negative pressure tank 29 is connected to each outlet pipe via the return pipe B5-2. The booster tank 28 is connected to the compressor 30 via the circulation pipe 5. The compressor 30, the booster pump 28, the circulation pump 29, and the pressure control valve 35 are all connected to the intelligent controller 3 via circuits. The pressure control valve 35 is connected to both the booster tank 28 and the negative pressure tank 29. The lower side of the combined bracket 2 is connected to the mattress 33. The mattress 33 is provided with a groove 31 and a connection hole 32 in the groove 31. The circulation pipe 5 is connected to the hydraulic support device and the liquid circulation system through the connection hole 32. The upper side of the mattress 33 is connected to a sensor A8-1, and the sensor 8 includes sensor A8-1.

[0019] Specific operation process: After the intelligent controller 3 is powered on, it receives pressure signals transmitted by multiple sensors 8. After processing, it controls multiple solenoid valves 6, booster pump 25, and circulation pump 26 to work. High-pressure water is drawn from the high-pressure tank 28 through the supply pipe A5-1 and opened by the solenoid valve 6. The high-pressure water enters the cylinder A12-1 on the auxiliary pressure rod A11-1 through the inlet pipe 15. The piston pushes the support rod A13-1 to extend and retract, and pushes the upper end of the cylinder 12 to move upward. After the upper end of the cylinder 12 moves upward a certain distance, the intelligent controller 3 controls another solenoid valve 6 to open. The high-pressure water enters the cylinder 12 on the dual-port pressure rod 11 through the inlet pipe 15. The piston pushes the support rod 13 to extend and retract, and pushes the sliding roller 19 to roll in the roller groove 18. This is linked to the support plate 9 rising. The rising process stops after reaching the height of the headrest body 1. When the headrest body 1 needs to descend, first close the solenoid valve 6 on the circulation pipe 5. The high-pressure water in the cylinder 12 enters the return pipe B5-2 through the three-way valve and the opening of another solenoid valve 6, and then flows back into the negative pressure tank 29. The pressure in the negative pressure tank 29 is controlled by the pressure control valve 35 and the pump 25 to reach a pressure lower than that of the high-pressure tank 28 or to form a negative pressure. The descent process stops when the headrest body 1 reaches its descent height. The outlet pipe 16 connected to the cylinder 12 enters the return pipe B5-2 through the three-way valve and the opening of another solenoid valve 6, flowing back into the negative pressure tank 29. The function of each outlet pipe 16 is to draw a small amount of circulating water that is allowed to leak from the piston in the cylinder into the negative pressure tank 29. Allowing a small amount of circulating water to leak provides lubrication for the piston in the cylinder, reducing resistance and wear during piston movement, thus enabling the cylinder and piston to be used for a long time. In addition, by setting an outlet pipe at the upper end of the cylinder, the other side of the piston will not generate the side effect of high pressure resistance, which helps the piston move freely. The temperature control tube 7 is positioned on the upper side of the elastic support pad 10, providing a comfortable temperature control and soft support for the user's head. The compressor 30 is controlled by the intelligent controller 3 to achieve temperature control of the circulating water.

[0020] By setting a positioning pressure rod B11-2, which is equipped with a cylinder B12-2 and a support rod B13-2, and with the other end of the support rod B13-2 connected to a motion recorder 22 and a positioning pull rope 23, when the support rod B13-2 extends or retracts, the motion recorder 22 transmits the movement distance data to the intelligent controller 3. This movement distance data determines the lifting height of the support plate 9 connected to the positioning pull rope 23, i.e., the lifting height of the headrest body 1. The intelligent controller 3 controls the locking function of the motion recorder 22. The combination of the motion recorder 22 and the locking ruler 21 can lock the extension and retraction of the support rod B13-2. After the support rod B13-2 stops moving by locking it with the combination of the motion recorder 22 and the positioning pull rope 23, the pressure of the circulating water in the cylinder 12 can be adjusted to achieve either soft or firm support for the headrest body 1. In summary, through the above-mentioned various adjustment functions, the upward support force of the dual-interface pressure rod 11 can be adjusted to be large or small, so that the headrest body 1 can provide comfortable support for the user's head, have a comfortable temperature control effect, meet the user's better sleep requirements, and promote physical health.

[0021] Height adjustment process: When sensor 8 detects that the user has changed from lying flat to lying on their side, the pressure distribution in the head and neck will change significantly, with the pressure center shifting to one side. The sensor detects this asymmetrical pressure distribution and the potential pressure changes, and the intelligent controller's algorithm determines that the user has turned to their side. The intelligent controller 3 issues a command. First, it opens the solenoid valve 6 connected to the auxiliary pressure rod A11-1, allowing high-pressure liquid to enter the lower chamber of cylinder A12-1 from the pressurization tank 28 via supply pipe A5-1 and inlet pipe 15, pushing the piston and support rod A13-1 to extend. Since the top of support rod A13-1 is hinged to the main cylinder 12, its extension will first lift the main cylinder 12, completing the initial lifting.

[0022] Subsequently, the intelligent control unit 3 opens the solenoid valve 6 connected to the main dual-port pressure rod 11, allowing high-pressure liquid to enter the lower chamber of the main cylinder 12, pushing the main support rod 13 to extend. The top of the main support rod 13 pushes the sliding roller 19 to roll in the roller groove 18 of the support plate 9, thereby smoothly lifting the entire headrest body 1 to the predetermined height.

[0023] When the headrest body 1 needs to be lowered, the intelligent controller 3 closes the solenoid valve 6 connected to the pressurization tank 28 and opens the solenoid valve connected to the negative pressure tank 29. Under the action of negative pressure suction and the weight of the headrest, the liquid in the cylinder 12 flows back to the negative pressure tank 29 through the return pipe B5-2, and the headrest body 1 descends smoothly to the predetermined height.

[0024] Adjustment of stiffness and precise positioning: The positioning pressure rod B11-2, together with the motion recorder 22 and the positioning pull rope 23, constitute a precise positioning and soft / hard adjustment module. The motion recorder 22 can move along the locking ruler 21 and lock its position. When the support rod B13-2 extends or retracts, it will drive the motion recorder 22 to move, and its movement distance is fed back to the intelligent control unit 3 in real time, thereby precisely controlling the headrest height.

[0025] Once the height is set, the locking function of the motion recorder 22 can be activated to fix the extension and retraction stroke of the support rod B13-2. At this time, the firmness of the headrest can be changed by adjusting the pressure of the liquid in the main cylinder 12: higher pressure results in firmer support, while lower pressure results in softer support. This achieves independent adjustment of the firmness while the height is locked.

[0026] Temperature control process: The intelligent controller 3, upon receiving a set signal or sensor signal, controls the compressor 30 to heat or cool the circulating liquid in the pressurization tank 28. The temperature-controlled liquid, driven by the circulation pump 26, flows through the support temperature control tube 7. The support temperature control tube 7 is evenly coiled within the elastic support pad 10, achieving efficient heat exchange with the contact surface with the head, thus raising or lowering the temperature of the headrest surface. The liquid then flows back into the pressurization tank 28 for temperature regulation, forming a closed-loop temperature control system.

[0027] Piston lubrication and leakage control: The upper chamber of cylinder 12 is connected to the negative pressure tank 29 via outlet pipe 16. This design serves two purposes: first, it balances the piston back pressure, making its movement smoother; second, it draws the permissible trace amount of leaked liquid at the piston into the return system. This trace amount of liquid lubricates the piston, reducing wear and movement resistance, and is simultaneously recovered through a closed-loop system, preventing contamination and ensuring the long-term reliable operation of the system.

[0028] 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 the 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 that is intelligently adjustable via a hydraulic support device, comprising a headrest body (1) and a combined bracket (2) disposed below it, characterized in that: A hydraulic support device is provided between the headrest body (1) and the combined bracket (2). The hydraulic support device is controlled by an intelligent controller (3) and connected to a liquid circulation system through a circulation pipe (5). Multiple solenoid valves (6) are provided on the circulation pipe (5). The intelligent controller (3) is communicatively connected to the sensor (8) and the solenoid valves (6).

2. The headrest with intelligent adjustment via a hydraulic support device as described in claim 1, characterized in that: The hydraulic support device includes a double-port pressure rod (11), which includes a cylinder (12) and a support rod (13). The cylinder (12) is equipped with a piston. One end of the support rod (13) is connected to the piston, and the other end is connected to the support plate (9) of the headrest body (1) through a sliding roller (19). The cylinder (12) is equipped with an inlet pipe (15) and an outlet pipe (16), which are respectively connected to the circulation pipe (5).

3. A headrest that is intelligently adjustable via a hydraulic support device as described in claim 2, characterized in that: The headrest body (1) includes a support plate (9) and an elastic support pad (10). The support plate (9) has a roller groove (18) on its lower side, and a sliding roller (19) is located in the roller groove (18). A support temperature control tube (7) is coiled on the elastic support pad (10). The support temperature control tube (7) is connected to the circulation pipe (5) through an inlet pipe C and an outlet pipe C.

4. A headrest that is intelligently adjustable via a hydraulic support device as described in claim 2, characterized in that: The dual-interface pressure rod (11) includes an auxiliary pressure rod A (11-1) and a positioning pressure rod B (11-2). One end of the support rod A (13-1) of the auxiliary pressure rod A (11-1) is connected to the piston, and the other end is hinged to the side wall of the cylinder (12). The support rod B (13-2) of the positioning pressure rod B (11-2) is connected to the moving recorder (22). The moving recorder (22) is mounted on the locking ruler (21) and can move and lock along it. The moving recorder (22) is connected to the support plate (9) through the positioning pull rope (23).

5. A headrest that is intelligently adjustable via a hydraulic support device as described in claim 1, characterized in that: The liquid circulation system includes a booster pump (25), a circulation pump (26), a booster tank (28), a negative pressure tank (29), a compressor (30), and a pressure control valve (35). The booster tank (28) is connected to each inlet pipe through a supply pipe A (5-1), and the negative pressure tank (29) is connected to each outlet pipe through a return pipe B (5-2). The compressor (30) is connected to the booster tank (28) for heating or cooling the circulating liquid. Both the booster tank (28) and the negative pressure tank (29) are connected to a pressure control valve (35).

6. A headrest that is intelligently adjustable via a hydraulic support device as described in claim 1, characterized in that: The combined bracket (2) is connected to the mattress (33) below. The mattress (33) has a groove (31) and a connecting hole (32). The circulation tube (5) passes through the mattress (33) through the connecting hole (32).

7. A headrest that is intelligently adjustable via a hydraulic support device as described in claim 1, characterized in that: The sensor (8) includes a sensor located on the upper side of the headrest body (1) and a sensor A (8-1) located on the upper side of the mattress (33).

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