A pneumatic suspension mattress

Abstract

The present invention relates to the technical field of daily necessities and discloses a pneumatic suspension mattress, which includes an adjustable air cushion. The adjustable air cushion is provided with an air inlet connected to an air charging and discharging unit. Two partition belts are arranged in parallel along the width direction of the adjustable air cushion. The partition belts divide the adjustable air cushion into a chest and back adjustment part, a hip adjustment part, and a lower limb adjustment part that communicate with each other. The pneumatic suspension mattress adopting the technical solution of the present invention has a simple structure, can realize the pneumatic suspension adjustment of the mattress with a small air pressure without a complex control system, and has a good fitting effect with the user, and the user has a comfortable use feeling.

Description

Technical Field

[0001] The present invention relates to the technical field of daily necessities, and particularly to a pneumatic suspension mattress. Background Art

[0002] Currently, with the aging of the population, many elderly people need to recuperate in bed at home, in hospitals, and in nursing homes. The elderly have different body weights, and the softness and hardness of the bed they need during sleep are different. The common inflatable mattresses on the market are: integral inflatable mattresses, multi-tube inflatable mattresses, and pneumatic suspension beds. However, all the common products and structural designs on the market at present are that the human body lies directly on the inflatable pad and the bedsheet, and various problems exist in the use of each inflatable mattress:

[0003] ① The contact position between the integral inflatable mattress and the human body is relatively fixed. After lying in bed, the body forms a closed state after fitting with the mattress, and the air permeability is poor. In addition, the pressure-bearing points of the human body in bed change little, and it is impossible to effectively reduce the pressure on the prone positions of human pressure sores, and the role of assisting in preventing pressure sores is limited.

[0004] ② The multi-tube airbags of the multi-tube inflatable mattress can be automatically controlled, alternately inflated, and the pressure-bearing positions of the lying human body can be changed. However, because the airbags on the bed surface are divided into small airbags, each airbag is small, and the inflation volume is limited. Adults generally have a larger body weight, especially in the buttocks position, and a higher pressure is required to lift the human body, changing the weight-bearing position (point) of the human body to achieve the effect of assisting in preventing pressure sores. However, because the inflation pressure is relatively large, the airbag becomes hard, and the junction between two adjacent airbags does not contact the body when the user is using it, resulting in uneven force on the user and poor use experience.

[0005] ③ The pneumatic suspension bed is provided with more than 100 structural design airbags on the bed surface, and the human body is lifted by automatically controlling the inflation and deflation of the high-pressure air flow of different groups of airbags to achieve the goal of preventing pressure sores and treating wounds. However, the contact between the high-pressure airbag of the pneumatic suspension bed and the pressure-bearing points of the lying human body cannot be predicted, which easily causes discomfort to the user. At the same time, it must use a complete set of control systems, which are expensive. At present, it is only applicable to the rescue and treatment of large-area burns and scalds, and cannot be generally applied to ordinary families and nursing homes.

[0006] Because in the common anti-pressure sore air cushion beds on the market, the user directly contacts the inflatable air cushion through the bedsheet during use, and because the inflatable airbags are all made of airtight materials, the lying user's experience is not good. At the same time, all the common inflatable beds on the market require a relatively large inflation pressure to lift the user, and at the same time, a complex control system and sensors are required to control the inflation volume, which is expensive. At the same time, the relatively large inflation pressure makes the bed body too hard, resulting in discomfort to the user, and long-term lying in bed will cause pressure sores. Summary of the Invention

[0007] The object of the present invention is to provide a pneumatic suspension mattress, which has a simple structure, can realize the adjustment of the mattress with a small air pressure without a complex control system, and has a good suspension effect between the mattress and the user, and the user has a comfortable use feeling.

[0008] To achieve the above object, the present invention provides a pneumatic suspension mattress, including an adjustment air cushion. The adjustment air cushion is provided with an inflation port connected to a gas charging and discharging unit. Two partition belts are arranged in parallel along the width direction of the adjustment air cushion inside the adjustment air cushion. The partition belts divide the adjustment air cushion into a chest and back adjustment part, a hip adjustment part and a lower limb adjustment part which are communicated with each other.

[0009] Preferably, a plurality of first isolation belts are arranged along the length direction of the adjustment air cushion inside the chest and back adjustment part. The first isolation belts divide the chest and back adjustment part into a plurality of chest and back adjustment cavities which are communicated with each other. A plurality of second isolation belts are arranged along the length direction of the adjustment air cushion inside the lower limb adjustment part. The second isolation belts divide the lower limb adjustment part into a plurality of lower limb adjustment cavities which are communicated with each other. The number of the first isolation belts is less than the number of the second isolation belts.

[0010] Preferably, a third isolation belt is arranged in the middle of the hip adjustment part. The third isolation belt divides the hip adjustment part into two hip adjustment cavities which are communicated with each other.

[0011] Preferably, the third isolation belt is located in the middle of the inflation channel where the hip adjustment part is communicated with the chest and back adjustment part.

[0012] Preferably, the number of the first isolation belts is 2, and the number of the second isolation belts is 3.

[0013] Preferably, an installation pad is further arranged below the adjustment air cushion.

[0014] Preferably, the installation pad includes a calf hard pad, a thigh hard pad, a hip hard pad and a back hard pad. The calf hard pad, the thigh hard pad, the hip hard pad and the back hard pad are sewn and connected.

[0015] Preferably, a soft pad is further installed on the upper surface of the adjustment air cushion.

[0016] Preferably, an air cushion cover is further sleeved outside the soft pad, the adjustment air cushion and the installation pad.

[0017] Preferably, the inflation port is located at one end of the lower limb adjustment part far away from the hip adjustment part.

[0018] Compared with the prior art, the beneficial effect of the pneumatic suspension mattress according to the embodiment of the present invention is as follows:

[0019] (1) By setting up an integrated and interconnected chest and back adjustment part, hip adjustment part, and lower limb adjustment part, when the patient lies in bed, due to the special airbag design with a large inflation volume, it can not only ensure a flat bed surface but also achieve effective suspension of the human body with a tiny inflation pressure (<0.5 kpa).

[0020] (2) The weight-bearing position of the lying human body contacts the soft pad on the surface of the inflated airbag. The tiny-pressure-inflated airbag has the function of shaping the human body, effectively increasing the weight-bearing surface area of the human body lying in bed and dispersing the key factors for the formation of pressure sores at the pressure-bearing positions of the human body: pressure and shear force.

[0021] (3) A third isolation belt is arranged in the middle of the inflation channel where the hip adjustment part is connected to the chest and back adjustment part. When the patient turns over, after the integrated airbag bears the weight, the gas flow makes the human body located in the middle of the bed, avoiding the risk of falling off the bed.

[0022] (4) After the production of the adjustable air cushion is completed, its volume is determined, and the inflation rate of the inflation device (inflation pump) is determined. Therefore, the problem of tiny air pressure regulation can be solved by controlling the inflation time, eliminating the use of a tiny air pressure sensor and reducing the production cost of the pneumatic suspension device. Description of the Drawings

[0023] Figure 1 is a cross-sectional view of the pneumatic suspension mattress according to an embodiment of the present invention;

[0024] Figure 2 is a schematic connection structure diagram of the pneumatic suspension mattress according to an embodiment of the present invention;

[0025] Figure 3 is a schematic structure diagram of the adjustable air cushion according to an embodiment of the present invention;

[0026] Figure 4 is a schematic control principle diagram of the pneumatic suspension mattress according to an embodiment of the present invention;

[0027] In the figure, 1. Pneumatic suspension mattress, 2. Air pipe plug, 3. Control host, 4. Air cushion cover, 5. Soft pad, 6. Adjustable air cushion, 61. Chest and back adjustment part, 62. Hip adjustment part, 63. Lower limb adjustment part, 7. Installation pad, 8. Inflation port, 9. Air pipe, 10. Air pump, 11. Solenoid valve, 12. Pressure sensor, 13. Liquid crystal display screen, 14. Control main board, 15. DC24V switching power supply. Detailed Embodiments

[0028] The following will further describe in detail the specific implementation manners of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0029] It should be understood that in the present invention, terms such as "first" and "second" are used to describe various information, but these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0030] As Figures 1 to 4 shown, a pneumatic suspension mattress 1 of a preferred embodiment of the present invention includes an adjustment air cushion 6. The adjustment air cushion 6 is provided with an inflation port 8 connected to a charging and discharging unit. In this embodiment, the charging and discharging assembly is an air pump 10. The air pump 10 is connected to the adjustment air cushion 6 through an air pipe 9. Two partition belts are arranged in parallel along the width direction of the adjustment air cushion 6 in the adjustment air cushion 6. The partition belts divide the adjustment air cushion 6 into a chest and back adjustment part 61, a hip adjustment part 62 and a lower limb adjustment part 63 that communicate with each other. Thus, when the user turns over or gets up, the gas can flow mutually, facilitating the user's movement and also avoiding the adjustment air cushion 6 from being damaged due to stress when the user gets up or turns over. After the adjustment air cushion 6 is produced, its volume is determined as V, and the inflation rate of the inflation device is determined as s. Thus, the inflation time t can be regulated, where t = V / s. The inflation pressure in the adjustment air cushion 6 can be adjusted by adjusting the inflation time t, avoiding the installation of a micro air pressure sensor or a precision sensor on the control air path to control and measure the inflation pressure, and reducing the production cost.

[0031] Based on the above technical solutions, by providing the mutually communicating chest and back adjustment part 61, hip adjustment part 62 and lower limb adjustment part 63, when the user lies on the adjustment air cushion 6, when the user flips or moves the body, the gas in the adjustment air cushion 6 can move freely, and the adjustment air cushion 6 can change its shape with the conversion of the user's posture, better fitting with the user. Thus, the stress points between the adjustment air cushion 6 and the user are large, avoiding the phenomenon of pressure sores caused by long-term bedridden. At the same time, when the user turns over, after the gas flows to the side of the adjustment air cushion 6, to a certain extent, it will give the user a reaction force to prevent the user from falling out of the bed. Further, after the adjustment air cushion 6 is produced, its volume is determined, and the rate of the inflation device is determined. Thus, the problem of micro air pressure regulation can be solved by regulating the inflation time, eliminating the use of a micro air pressure sensor and reducing the production cost.

[0032] Furthermore, several first isolation belts are provided inside the chest and back adjustment part 61 along the length direction of the adjustment air cushion 6. The first isolation belts divide the chest and back adjustment part 61 into several interconnected chest and back adjustment cavities; several second isolation belts are provided inside the lower limb adjustment part 63 along the length direction of the adjustment air cushion 6. The second isolation belts divide the lower limb adjustment part 63 into several interconnected lower limb adjustment cavities, and the number of the first isolation belts is less than that of the second isolation belts. Thus, the chamber volume of each chest and back adjustment cavity is larger than that of the lower limb adjustment cavity, and can hold more gas. Since the main stress points of the human body are on the head and back, and the chamber volume of the chest and back adjustment cavity is larger than that of the lower limb adjustment cavity, when the user lies on the mattress, after the gas in the chest and back adjustment cavity is discharged appropriately, the whole mattress is in a flat state and will not show the situation of being unable to float and fit with the bed board.

[0033] Furthermore, a third isolation belt is provided in the middle of the hip adjustment part 62. The third isolation belt divides the hip adjustment part 62 into two interconnected hip adjustment cavities. This avoids the middle part of the adjustment air cushion 6 bulging when inflated like a traditional air mattress, thus preventing the user from slipping to both sides of the air mattress, resulting in poor use experience or the risk of falling to the ground. The setting of the third isolation belt further ensures the safety and comfort of the user.

[0034] Preferably, the third isolation belt is located in the middle of the inflation channel where the hip adjustment part 62 is connected to the chest and back adjustment part 61, thereby avoiding excessive pressure on one side and the protrusion of the airbag on the other side when turning over sideways, and maintaining the balance of the airbags on both sides. In this embodiment, the position length of the inflation channel where the hip adjustment part 62 is connected to the chest and back adjustment part 61 is adjusted according to the age of the person, and its position is at the position corresponding to the coccyx when the user lies on the adjustment air cushion 6. It is located along the length direction of the adjustment air cushion 6, and the length from the end of the chest and back adjustment part 61 to the hip adjustment part 62 is about 1 / 3 - 1 / 2 of the adjustment air cushion 6. Thus, the position of the third isolation belt corresponds to the anatomical shape of the human body, making the user more comfortable when lying on the adjustment air cushion 6.

[0035] In this embodiment, the number of the first isolation belts is 2, and the number of the second isolation belts is 3. There is one chamber in the hip and four chambers in the legs. Due to the structural characteristics of the human body, the main weight of the human body is distributed from the hip to the head. When a person lies on the airbag, the airbag at the load-bearing part will sink downward to a greater height. Therefore, three chambers are designed on the head side and four chambers are designed on the leg side, so that the volume of each chamber will not be too small, thus avoiding the phenomenon that the user cannot float when the chamber volume is too small. At the same time, such a design makes the chambers on the head side larger than those on the leg side, ensuring that the human body can be completely suspended and the airbags can be balanced when lying in bed.

[0036] Preferably, it further includes a mounting pad 7 disposed below the adjustment air cushion 6. This facilitates the installation of the adjustment air cushion 6 and at the same time prevents the adjustment air cushion 6 from directly contacting the bed board, avoiding damage to the adjustment air cushion 6. In this embodiment, the mounting pad 7 is a coir mattress, which facilitates the overall shaping of the mattress and the relatively fixed placement between the mattress and the bed.

[0037] Specifically, the mounting pad 7 includes a calf hard pad, a thigh hard pad, a hip hard pad, and a back hard pad, and the calf hard pad, the thigh hard pad, the hip hard pad, and the back hard pad are sewn together. The segmentation is for the convenience of placing the mounting pad 7 on the multifunctional hospital bed, so that the mounting pad 7 will not be damaged after corresponding movements with the hospital bed.

[0038] In addition, it further includes a soft pad 5 mounted on the upper surface of the adjustment air cushion 6. In this embodiment, the soft pad 5 is a latex pad. Thus, it avoids the user from directly contacting the adjustment air cushion 6, avoiding the discomfort of the user, and at the same time increasing the force point area between the user and the mattress, further avoiding the occurrence of pressure sores during long-term bed rest.

[0039] Furthermore, it further includes an air cushion cover 4 sleeved outside the soft pad 5, the adjustment air cushion 6, and the mounting pad 7, which makes the entire pneumatic suspension mattress 1 a whole, facilitating installation and movement, and further facilitating the replacement of the air cushion cover 4, thereby facilitating the cleaning of the pneumatic suspension mattress 1. At the same time, it improves the appearance of the mattress and makes the mattress integrated and easy to carry.

[0040] In this embodiment, the air inlet 8 is located at one end of the lower limb adjustment part 63 away from the hip adjustment part 62, which facilitates the placement of the control device.

[0041] Preferably, it further includes a control component. The control component includes a liquid crystal display screen 13, a control main board 14, and a power supply for powering the control main board 14. In this embodiment, the power supply is a DC24V switching power supply 15. The 24V direct current is lower than the human body safety voltage of 36V and less than the voltage tolerated by humans, thus ensuring the safety of the user. The control main board 14 is electrically connected to the solenoid valve 11, the air pump 10, and the liquid crystal display screen 13. The user can operate the charging and discharging time of the adjustment air cushion 6 through the liquid crystal display screen 13 to adjust the inflation pressure of the adjustment air cushion 6, improving the comfort of the user.

[0042] In this embodiment, the control main board 14 and the solenoid valve 11 are installed in the control host 3. During use, only by connecting the host to the pneumatic suspension mattress 1 through the air pipe plug 2, the charging and discharging control of the adjustment air cushion 6 can be realized, which is convenient for installation.

[0043] Optionally, a pressure sensor 12 is further provided on the air path connecting the air pump 10 and the solenoid valve 11. The pressure sensor 12 is electrically connected to the control component, facilitating timely feedback of pressure information to the control component, enabling the user to read relevant pressure information, and thus timely monitoring and adjusting the inflation and deflation states of the air cushion 6 and the air pump 10, and making timely adjustments and repairs when their performance changes.

[0044] The working process of the present invention is as follows: The solenoid valve 11 is controlled through the liquid crystal display screen 13 to control the inflation of the air cushion 6, and the softness and hardness of the air cushion 6 are adjusted by controlling the inflation time. When the user lies on the pneumatic suspension mattress 1, when the user turns over or moves the body, the gas in the air cushion 6 can move freely, and the air cushion 6 can change its shape with the conversion of the user's posture, fitting better with the user. Thus, the stress points between the air cushion 6 and the user are large, avoiding the phenomenon of pressure sores caused by long-term bedridden. At the same time, the user does not directly contact the air cushion 6, avoiding skin discomfort.

[0045] In summary, the embodiment of the present invention provides a pneumatic suspension mattress 1. The pneumatic suspension mattress 1 is provided with a chest and back adjustment part 61, a hip adjustment part 62, and a lower limb adjustment part 63 that are interconnected. When the user lies on the air cushion 6, when the user turns over or moves the body, the gas in the air cushion 6 can move freely, and the air cushion 6 can change its shape with the conversion of the user's posture, fitting better with the user. Thus, the stress points between the air cushion 6 and the user are large, avoiding the phenomenon of pressure sores caused by long-term bedridden. At the same time, when the user turns over, the gas flows to the side of the air cushion 6, and to a certain extent, it will give the user a reaction force to prevent the user from falling out of the bed. Further, after the air cushion 6 is produced, its volume is determined, and the rate of the inflation device is determined. Therefore, the problem of micro air pressure regulation can be solved by controlling the inflation time, eliminating the use of a micro air pressure sensor and reducing the production cost.

[0046] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0047] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art in the technical field, without departing from the technical principle of the present invention, several improvements and replacements can be made, and these improvements and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A pneumatic suspension mattress, characterized in that, it includes an adjustable air cushion, the adjustable air cushion is provided with an inflation port connected to the air charging and discharging unit, and two partition belts are arranged in parallel along the width direction of the adjustable air cushion inside the adjustable air cushion, and the partition belts divide the adjustable air cushion into a chest and back adjustment part, a hip adjustment part and a lower limb adjustment part which are communicated with each other; a plurality of first isolation belts are arranged along the length direction of the adjustable air cushion inside the chest and back adjustment part, and the first isolation belts divide the chest and back adjustment part into a plurality of chest and back adjustment cavities which are communicated with each other; a plurality of second isolation belts are arranged along the length direction of the adjustable air cushion inside the lower limb adjustment part, and the second isolation belts divide the lower limb adjustment part into a plurality of lower limb adjustment cavities which are communicated with each other, and the number of the first isolation belts is less than the number of the second isolation belts, so that the chamber volume of each chest and back adjustment cavity is larger than the chamber volume of the lower limb adjustment cavity.

2. The pneumatic suspension mattress according to claim 1, characterized in that, a third isolation belt is arranged in the middle of the hip adjustment part, and the third isolation belt divides the hip adjustment part into two hip adjustment cavities which are communicated with each other.

3. The pneumatic suspension mattress according to claim 2, characterized in that, the third isolation belt is located in the middle of the inflation channel where the hip adjustment part is communicated with the chest and back adjustment part.

4. The pneumatic suspension mattress according to claim 1, characterized in that, the number of the first isolation belts is 2, and the number of the second isolation belts is 3.

5. The pneumatic suspension mattress according to claim 1, characterized in that, it further includes a mounting pad arranged below the adjustable air cushion.

6. The pneumatic suspension mattress according to claim 5, characterized in that, the mounting pad includes a calf hard pad, a thigh hard pad, a hip hard pad and a back hard pad, and the calf hard pad, the thigh hard pad, the hip hard pad and the back hard pad are sewn and connected.

7. The pneumatic suspension mattress according to claim 5, characterized in that, it further includes a soft pad mounted on the upper surface of the adjustable air cushion.

8. The pneumatic suspension mattress according to claim 7, characterized in that, it further includes an air cushion cover sleeved outside the soft pad, the adjustable air cushion and the mounting pad.

9. The pneumatic suspension mattress according to claim 1, characterized in that, the inflation port is located at one end of the lower limb adjustment part away from the hip adjustment part.

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