Headrest intelligently adjusted through hydraulic supporting device

Abstract

The invention discloses a headrest intelligently adjusted through a hydraulic supporting device, and belongs to the technical field of household articles. The headrest comprises a headrest body, a combined bracket and a hydraulic supporting device arranged between the headrest body and the combined bracket, the hydraulic supporting device is connected with a liquid circulating system through a circulating pipe, and components such as an electromagnetic valve, a booster pump, a circulating pump and a compressor are controlled by an intelligent control machine such as a sensor signal. Intelligent lifting adjustment of the height of the headrest and accurate control of the temperature are achieved. The hydraulic supporting device is of a double-connector pressure rod structure and is matched with a roller groove, a sliding roller, a movable recorder, a positioning pull rope and other components, and stable lifting and adjustable soft and hard supporting are achieved. The device has the advantages of being reasonable in structure, flexible to adjust, free of noise and pollution, comfortable to support, intelligent in temperature control and the like, and is suitable for a modern intelligent home sleep system.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of smart home and ergonomic products, and particularly relates to a headrest with automatic adjustment function, in particular a headrest system capable of intelligent lifting, softness and hardness adjustment and temperature control through a hydraulic support device. BACKGROUND

[0002] Most of the existing headrest products use memory foam, down, latex and other filling materials, and their support characteristics are fixed. During use, especially when changing posture (such as from lying to lying on one side), the optimal support height required by the head will change, and the traditional headrest cannot dynamically respond to this demand, which can easily cause neck discomfort and affect sleep quality.

[0003] In addition, some high-end products try to achieve height adjustment through inflatable airbags, but there are problems such as slow adjustment speed, loud mechanical noise, unstable support and inability to accurately control softness and hardness. In terms of temperature adjustment, electric heating wires or semiconductor refrigerating sheets are usually used, which have the disadvantages of uneven heating and cooling, safety hazards or high energy consumption.

[0004] Therefore, there is an urgent need in the art for a new type of intelligent headrest that can automatically adjust the support height and softness and hardness in real time, silently and smoothly, and provide uniform and safe temperature control, to meet the higher requirements of modern consumers for sleep health and quality of life. SUMMARY

[0005] To solve the above problems, the present application provides a headrest with intelligent adjustment through a hydraulic support device.

[0006] The technical solution of the present application is as follows: a headrest with intelligent adjustment through a hydraulic support device, comprising a headrest body and a combined bracket arranged below the headrest body, a hydraulic support device is arranged between the headrest body and the combined bracket, the hydraulic support device is controlled by an intelligent control machine, and is connected to a liquid circulation system through a circulation pipe, a plurality of electromagnetic valves are arranged on the circulation pipe, and the intelligent control machine is connected with a sensor and an electromagnetic valve; Preferably, the hydraulic support device comprises a double-interface pressure rod, the double-interface pressure rod comprises a cylinder and a support rod, a piston is arranged in the cylinder, one end of the support rod is connected with the piston, and the other end is connected with a supporting plate of the headrest body through a sliding roller; an inlet pipe and an outlet pipe are arranged on the cylinder and connected with the circulation pipe; Preferably, the headrest body comprises a supporting plate and a spring supporting pad, a roller groove is arranged on the lower side of the supporting plate, the sliding roller is arranged in the roller groove, a supporting temperature control pipe is wound on the spring supporting pad, and the supporting temperature control pipe is connected with the circulation pipe through an inlet pipe C and an outlet pipe C; Preferably, the double-interface pressure rod comprises an auxiliary pressure rod A and a positioning pressure rod B, the support rod A of the auxiliary pressure rod A is connected with the piston at one end and hinged with the cylinder side wall at the other end, the support rod B of the positioning pressure rod B is connected with a mobile recorder, the mobile recorder is arranged on the locking ruler and can move and lock along the locking ruler, and the mobile recorder is connected with the supporting plate through a positioning pull rope; Preferably, the liquid circulation system comprises 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 with each inlet pipe through a supply pipe A, the negative pressure tank is connected with each outlet pipe through a return pipe B, the compressor is connected with the booster tank for adjusting water temperature, and the booster tank and the negative pressure tank are both connected with the pressure control valve. Preferably, the combined bracket is connected with a mattress below, the mattress is provided with a recess and a connecting hole, and the circulation pipe penetrates through the mattress through the connecting hole. Preferably, the sensor comprises a sensor arranged on the upper side of the headrest body and a sensor A arranged on the upper side of the mattress.

[0007] Compared with the prior art, the present application has the following advantages: Intelligent self-adaptive adjustment: the user's posture is sensed in real time through the sensor, the height of the headrest is automatically and accurately adjusted, the cervical vertebra is kept in natural physiological curvature at all times, and the best support is provided.

[0008] Soft and hard stepless adjustment: through control of the pressure in the hydraulic cylinder, stepless support feeling adjustment from soft to hard can be realized, and the individualized preferences of different users are met.

[0009] Uniform and comfortable temperature control: a liquid circulation temperature control system is adopted, heat exchange is carried out through the coiled supporting temperature control pipe, temperature distribution is uniform, local overcooling or overheating is avoided, there is no wind blowing feeling, and the body feeling is comfortable.

[0010] Quiet and stable operation: the hydraulic transmission mode has extremely low operation noise, the lifting action of the support rod is smooth and smooth, and sleep is not disturbed.

[0011] Safety and reliability: the liquid circulation system is separated from the electrical components, the temperature control part has no high-voltage electric direct contact with the head, and the safety is high. The system adopts a closed loop design, is pollution-free, and has a long service life.

[0012] Integrated design: the whole system can be embedded in the mattress, the appearance is neat, and the use experience of the traditional bed is not affected. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a front view cross-sectional schematic view of the overall structure of the present application. Fig. 2 It is a top view cross-sectional schematic view of the present application. Fig. 3 It is a side view cross-sectional schematic view of the present application.

[0014] Parts Description: 1, headrest body, 2, combined bracket, 3, intelligent control machine, 5, circulating pipe, 5-1, supply pipe A, 5-2, return pipe B, 6, electromagnetic valve, 7, supporting temperature control pipe, 8, sensor, 8-1, sensor A, 9, supporting plate, 10, elastic supporting pad, 11, double 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, supporting rod, 13-1, supporting rod A, 13-2, supporting 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, circulating pump, 28, booster tank, 29, negative pressure tank, 30, compressor, 31, groove, 32, connecting hole, 33, mattress, 35, pressure control valve, 36, headrest cover, 37, hanging piece. DETAILED DESCRIPTION

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

[0016] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application.

[0017] Referring to the drawings Figs. 1-3 The overall connection relationship of the headrest intelligently adjusted by the hydraulic supporting device is that the combined bracket 2 is fixed in the groove 31 of the mattress 33, the headrest body 1 is erected above the combined bracket 2 by the hydraulic supporting device, the intelligent control machine 3 and the main components of the liquid circulating system (such as the booster pump 25, the booster tank 28, etc.) can be built-in in the mattress 33 or placed on the bedside, and the circulating pipe 5 connects the liquid circulating system and the hydraulic supporting device through the connecting hole 32 on the mattress 33.

[0018] Specific connection relationship: a headrest is intelligently adjusted through a hydraulic support device, comprising a headrest body 1, a combined bracket 2 is arranged below the headrest body 1, a hydraulic support device is arranged between the headrest body 1 and the combined bracket 2, the hydraulic support device is controlled and adjusted through an intelligent control machine 3, the hydraulic support device is connected with a liquid circulation system through a circulating pipe 5, a plurality of electromagnetic valves 6 are connected to the circulating pipe 5 respectively, the intelligent control machine 3 is connected with the electromagnetic valves 6 and sensors 8 through an electric circuit, and the sensors 8 are connected with the upper side of the headrest body 1. The hydraulic support device comprises a double-interface pressure rod 11, a cylinder barrel 12 and a support rod 13 are arranged on the double-interface pressure rod 11, a piston is arranged in the cylinder barrel 12, a guide cover is arranged at the top end of the piston, one end of the support rod 13 is fixedly connected with the piston through the guide cover, the bottom end of the cylinder barrel 12 is connected with the combined bracket 2 through a connecting shaft, an inlet pipe 15 is connected to the side wall of the bottom end of the cylinder barrel 12, and an outlet pipe 16 is connected to the side wall of the top end of the cylinder barrel 12, the circulating pipe 5 comprises the inlet pipe 15 and the outlet pipe 16, the headrest body 1 comprises a supporting plate 9 and a elastic supporting pad 10, a roller groove 18 is arranged on the lower side of the supporting plate 9, a sliding roller 19 is connected in the roller groove 18, the other end of the support rod 13 is connected with the sliding roller 19, the upper side of the supporting plate 9 is connected with the elastic supporting pad 10, and the upper side of the elastic supporting pad 10 is connected with the sensors 8. The upper side of the elastic headrest supporting pad 10 is connected with a supporting temperature control pipe 7 in a coiled manner, an inlet pipe C and an outlet pipe C are connected to the supporting temperature control pipe 7 respectively, the inlet pipe C and the outlet pipe C are connected with the circulating pipe 5 respectively, a headrest cover 36 covers the upper side of the supporting temperature control pipe 7, and the four edges of the headrest cover 36 are connected with the combined bracket 2 through a hanging piece 37. The double-interface pressure rod 11 comprises an auxiliary pressure rod A11-1, the cylinder barrel 12 comprises a cylinder barrel A12-1, the support rod 13 comprises a support rod A13-1, the cylinder barrel A12-1 and the support rod A13-1 are arranged on the auxiliary pressure rod A11-1, the cylinder barrel A12-1 is connected with the combined bracket 2 through a connecting shaft, one end of the support rod A13-1 is fixedly connected with the piston through the guide cover, the other end of the support rod A13-1 is connected with one side of the cylinder barrel 12 through a connecting shaft, and the cylinder barrel A12-1 is connected with the inlet pipe A and the outlet pipe A.The double-interface pressure rod 11 comprises a positioning pressure rod B11-2, the cylinder 12 comprises a cylinder B12-2, the bottom end of the cylinder B12-2 is connected with the combined bracket 2 through a connecting shaft, the support rod 13 comprises a support rod B13-2, the combined bracket 2 is respectively connected with a roller 20 and a locking ruler 21, the locking ruler 21 is connected with a movement recorder 22, the movement recorder 22 is connected with the intelligent control machine 3 through an electric circuit, the roller 20 is connected with a positioning pull rope 23, one end of the support rod B13-2 is fixedly connected with the piston through a guide cover, and the other end is connected with the movement recorder 22, the bottom end of the cylinder B12-2 is connected with the combined bracket 2 through a connecting shaft, the cylinder B12-2 is connected with an inlet pipe and an outlet pipe, one end of the positioning pull rope 23 is connected with the movement recorder 22, and the other end is connected with the supporting plate 9. The liquid circulation system comprises a booster pump 25, a circulating 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 respectively connected with the booster pump 25 and the circulating pump 26 through a circulating pipe 5, the circulating pipe 5 comprises a supply pipe A5-1 and a return pipe B5-2, the booster tank 28 is connected with each inlet pipe through the supply pipe A5-1, the negative pressure tank 29 is connected with each outlet pipe through the return pipe B5-2, the booster tank 28 is connected with a compressor 30 through the circulating pipe 5, the compressor 30, the booster pump 28, the circulating pump 29 and the pressure control valve 35 are connected with the intelligent control machine 3 through an electric circuit, and the booster tank 28 and the negative pressure tank 29 are connected with the pressure control valve 35. The lower side of the combined bracket 2 is connected with a mattress 33, the mattress 33 is provided with a groove 31, the groove 31 is provided with a connecting hole 32, the circulating pipe 5 is connected with the hydraulic support device and the liquid circulation system through the connecting hole 32, the upper side of the mattress 33 is connected with a sensor A8-1, and the sensor 8 comprises the sensor A8-1.

[0019] Specific action process: after the intelligent control machine 3 is powered on, the intelligent control machine 3 receives the pressure signals conducted by the plurality of sensors 8, and after processing, controls the plurality of electromagnetic valves 6, the booster pump 25, and the circulating pump 26 to work, the high-pressure water is led out from the high-pressure tank 28 through the supply pipe A5-1, and the electromagnetic valve 6 is opened, the high-pressure water enters the cylinder A12-1 provided on the auxiliary pressure rod A11-1 through the inlet pipe 15, and the piston pushes the support rod A13-1 to move and push the upper end of the cylinder 12 to move upward, when the upper end of the cylinder 12 moves a distance, another electromagnetic valve 6 is opened through the intelligent control machine 3, the high-pressure water enters the cylinder 12 provided on the double-interface pressure rod 11 through the inlet pipe 15, and the piston pushes the support rod 13 to move, and the sliding roller 19 is rolled in the roller groove 18, and the supporting plate 9 is lifted, and when the height of the headrest body 1 is reached, the lifting process is stopped. When the headrest body 1 needs to be lowered, first, the electromagnetic valve 6 on the circulating pipe 5 is closed, the high-pressure water in the cylinder 12 enters the return pipe B5-2 through the three-way and the opening of another electromagnetic valve 6, and then returns to the negative pressure tank 29, the pressure in the negative pressure tank 29 is controlled by the control valve 35 and the booster pump 25 to be less than the pressure of the high-pressure tank 28 or form negative pressure, when the headrest body 1 reaches the descending height, the descending process is stopped. The outlet pipe 16 connected to the cylinder 12 enters the return pipe B5-2 through the three-way and the opening of another electromagnetic valve 6 and returns to the negative pressure tank 29, the function of each outlet pipe 16 is to suck a small amount of circulating water allowed to leak from the piston in the cylinder into the negative pressure tank 29, and a small amount of circulating water is set to leak, which has the effect of lubricating the piston in the cylinder, reduces the resistance of the piston when moving, and reduces wear and tear, so that the cylinder and the piston can be used for a long time. By setting the outlet pipe on the upper end of the cylinder, the other side of the piston will not produce high-pressure resistance side effects, which helps the free movement of the piston. The supporting temperature control pipe 7 is arranged on the upper side of the elastic supporting pad 10, which can provide comfortable temperature control and soft supporting effect for the user's head. The intelligent control machine 3 controls the compressor 30 to work to achieve temperature control of the circulating water.

[0020] By setting the positioning pressure rod B11-2, the cylinder B12-2 and the support rod B13-2 provided on the positioning pressure rod B11-2, and the other end of the support rod B13-2 connected with the mobile recorder 22 and the positioning pull rope 23, when the support rod B13-2 is extended and retracted, the mobile recorder 22 transmits the moving distance data to the intelligent control machine 3, and the moving distance data determines the lifting height of the supporting plate 9 connected with the positioning pull rope 23, that is, the lifting height of the headrest body 1. By controlling the locking function of the mobile recorder 22 by the intelligent control machine 3, and the combined connection of the mobile recorder 22 and the locking ruler 21, the extension and retraction of the support rod B13-2 can be locked. After the combined locking of the mobile recorder 22 and the positioning pull rope 23 stops the movement of the support rod B13-2, and then the pressure of the circulating water in the cylinder 12 is adjusted to be large or small, the soft support or hard support effect of the headrest body 1 can be achieved. In summary, by setting the above various adjustment functions, the upward supporting force of the double-interface pressure rod 11 can be adjusted to be large or small, the headrest body 1 can provide comfortable support to the user's head, and comfortable temperature control effect can be achieved, so that the user's better sleep requirement can be met, and the physical health can be promoted.

[0021] Height adjustment process: When the sensor 8 detects that the user turns from lying to lying on one side, the pressure distribution of the head and neck will change significantly, and the pressure center will deviate to one side. The sensor detects the asymmetric pressure distribution and possible pressure value change, and the algorithm of the intelligent control machine judges that the user has turned to lie on one side. The intelligent control machine 3 issues an instruction. First, the electromagnetic valve 6 connected to the auxiliary pressure rod A11-1 is opened, the high-pressure liquid enters the lower chamber of the cylinder A12-1 from the booster tank 28 through the supply pipe A5-1 and the inlet pipe 15, and pushes the piston and the support rod A13-1 to extend. Since the top end of the support rod A13-1 is hinged to the main cylinder 12, its extension will first lift the main cylinder 12, and complete the preliminary lifting.

[0022] Subsequently, the intelligent control machine 3 opens the electromagnetic valve 6 connected to the main double-interface pressure rod 11, and the high-pressure liquid enters the lower chamber of the main cylinder 12, and pushes the main support rod 13 to extend. The top end of the main support rod 13 pushes the sliding roller 19 to roll in the roller groove 18 of the supporting plate 9, so as to smoothly lift the entire headrest body 1 to a predetermined height.

[0023] When the headrest body 1 needs to be lowered, the intelligent control machine 3 closes the electromagnetic valve 6 connected to the booster tank 28, and opens the electromagnetic valve connected to the negative pressure tank 29. The liquid in the cylinder 12 flows back to the negative pressure tank 29 under the action of negative pressure suction and the self-weight of the headrest, and the headrest body 1 is smoothly lowered to a predetermined height.

[0024] Softness and hardness adjustment and precise positioning: The positioning pressure rod B11-2, the moving recorder 22 and the positioning pull rope 23 together constitute the precise positioning and soft-hard adjustment module. The moving recorder 22 can move along the locking ruler 21 and lock the position. When the support rod B13-2 is extended and retracted, the moving recorder 22 is moved, and the moving distance is fed back to the intelligent control machine 3 in real time, so that the height of the headrest is accurately controlled.

[0025] When the height is set, the locking function of the moving recorder 22 can be started, and the extension stroke of the support rod B13-2 is fixed. At this time, the support softness and hardness of the headrest can be changed by adjusting the pressure of the liquid in the main cylinder 12: the support feeling is hard when the pressure is high, and the support feeling is soft when the pressure is low. The soft and hard independent adjustment under the height locking is realized.

[0026] Temperature control process: The intelligent control machine 3 controls the compressor 30 to work according to the setting or the sensor signal, and heats or cools the circulating liquid in the booster tank 28. The liquid with the adjusted temperature is driven by the circulating pump 26 to flow through the supporting temperature control pipe 7. The supporting temperature control pipe 7 is uniformly coiled in the elastic supporting pad 10, and efficient heat exchange is performed through the contact surface with the head, so that the temperature of the surface of the headrest is raised and lowered. The liquid returns to the booster tank 28 again to adjust the temperature, and a closed-loop temperature control system is formed.

[0027] Piston lubrication and leakage control: The upper chamber of the cylinder 12 is in communication with the negative pressure tank 29 through the outlet pipe 16. The design has two effects: one is to balance the piston back pressure, so that the piston moves more smoothly; the other is to suck the micro-leakage liquid allowed to exist in the piston into the backflow system. The micro-leakage liquid plays a lubricating role on the piston, reduces the wear and movement resistance, and is recycled through the closed-loop system, avoids pollution, and ensures the long-term reliable operation of the system.

[0028] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit them. Although the present application is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A headrest with intelligent adjustment by hydraulic support device, comprising a headrest body (1) and a combined bracket (2) arranged below the headrest body, characterized in that: The headrest body (1) and the combined bracket (2) are provided with a hydraulic support device, the hydraulic support device is controlled by an intelligent control machine (3), and is connected with a liquid circulation system through a circulation pipe (5). The circulation pipe (5) is provided with a plurality of electromagnetic valves (6), the intelligent control machine (3) is in communication connection with the sensor (8) and the electromagnetic valve (6).

2. The headrest intelligently adjusted by hydraulic support device according to claim 1, wherein: The hydraulic support device comprises a double-interface pressure rod (11), the double-interface pressure rod (11) comprises a cylinder barrel (12) and a supporting rod (13), the cylinder barrel (12) is provided with a piston, one end of the supporting rod (13) is connected with the piston, and the other end is connected with a supporting plate (9) of the headrest body (1) through a sliding roller (19). The cylinder barrel (12) is provided with an inlet pipe (15) and an outlet pipe (16) connected with the circulation pipe (5) respectively.

3. The headrest intelligently adjusted by hydraulic support device according to claim 2, wherein: The headrest body (1) comprises the supporting plate (9) and an elastic supporting pad (10), the lower side of the supporting plate (9) is provided with a roller groove (18), the sliding roller (19) is arranged in the roller groove (18), and the elastic supporting pad (10) is coiled with a supporting temperature control pipe (7). The supporting temperature control pipe (7) is connected with the circulation pipe (5) through an inlet pipe C and an outlet pipe C.

4. The headrest intelligently adjusted by hydraulic support device according to claim 2, wherein: The double-interface pressure rod (11) comprises an auxiliary pressure rod A (11-1) and a positioning pressure rod B (11-2), one end of a supporting rod A (13-1) of the auxiliary pressure rod A (11-1) is connected with the piston, and the other end is hinged to the side wall of the cylinder barrel (12). A supporting rod B (13-2) of the positioning pressure rod B (11-2) is connected with a movement recorder (22), the movement recorder (22) is arranged on a locking ruler (21) and can move and lock along the locking ruler (21). The movement recorder (22) is connected with the supporting plate (9) through a positioning pull rope (23).

5. The headrest intelligently adjusted by hydraulic support device according to claim 1, wherein: The liquid circulation system comprises 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 with each inlet pipe through a supply pipe A (5-1), the negative pressure tank (29) is connected with each outlet pipe through a return pipe B (5-2), the compressor (30) is connected with the booster tank (28) and is used for heating or cooling the circulating liquid, and the booster tank (28) and the negative pressure tank (29) are both connected with the pressure control valve (35).

6. The headrest intelligently adjusted by hydraulic support device according to claim 1, wherein: The combined bracket (2) is connected with a mattress (33) below, the mattress (33) is provided with a recess (31) and a connecting hole (32), and the circulation pipe (5) penetrates the mattress (33) through the connecting hole (32).

7. The headrest intelligently adjusted by hydraulic support device according to claim 1, wherein: The sensor (8) comprises a sensor arranged on the upper side of the headrest body (1) and a sensor A (8-1) arranged on the upper side of the mattress (33).

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