TWM450289U - Air cushion bed - Google Patents

Description

Air bed

The present invention relates to an air bed, and more particularly to an air bed structure that can be safely turned sideways for the human body.

The airbag is arranged in the mattress, and air is injected into the airbag to form a soft air bed structure, which can provide the patient to lie comfortably, and the patient can not turn over by himself due to serious illness or serious injury, so it is often caused by lying for a long time. The blood can not be circulated in the body where the body is compressed, resulting in muscle necrosis, and the pressure is not ventilated, which is prone to acne, skin ulceration, etc. For this reason, people who are interested in designing an air bed structure that can help the patient turn over, A plurality of inflatable strip tubes having completely identical pipe diameters are arranged in the mattress, and a longitudinal air bag strip is respectively arranged on both sides of the lower end of the plurality of inflatable strip tubes, and the setting of the control box is matched, and the automatic timing is alternated for both sides. The longitudinal airbag tube is filled and deflated, so that the body of the seriously ill or seriously injured patient can raise and lower the height of both sides of the inflatable tube with the charging and deflation of the longitudinal airbags on both sides, and can be side to the patient body lying on the side Turning to the operation.

In the above-mentioned air bed structure which can help the patient turn over, the diameter of each inflatable strip tube is the same from head to tail. After inflation, there is no twistable mechanism design on the inflatable strip tube, so on one side When the longitudinal airbag tube is inflated, it pushes up one end of the inflatable strip tube, and because the inflatable strip tube is straight and has no turning mechanism, it will have one end as a fulcrum and the other end is inflated by the longitudinal airbag strip to raise a height. The surface of the mattress is formed from left to right or from right to left, causing serious illness or serious injury. In addition to being turned sideways, the patient may overturn and roll out of the air bed, causing accidental injury to the ground.

In order to improve the prior art problems, the present invention aims to provide a safer "air bed" structure for sideways turning operation of a human body, which comprises a plurality of adjacent side-by-side inflatable strip tubes, and a backing sheet having a flexible elastic package. Overlaid in plural The adjacent side of the inflatable strip tube is folded and positioned into a bed body, each of the inflating strip tubes has a first inflating section and a second inflating section, and the first inflating section side and the second inflating section side form an opposite end, and The two ends of the connecting section are respectively connected to the opposite ends of the first inflating section side and the second inflating section side, so that the first inflating section side and the second inflating section side are formed around the opposite ends to form the first inflating section side and a recessed portion of the second inflation section side, and a control box comprising a pumping pump, a gas direction adjusting device and a control panel, and a first airbag and a second airbag respectively located in the plurality of phases a plurality of first inflatable segments and a lower side of the second inflatable portion, and adjacent to the inflatable strip tubes, and comprising a plurality of gas tubes, wherein the plurality of gas tubes are respectively connected to the respective inflatable strips Between the tube and the gas direction adjusting device of the control box, and a plurality of gas pipes are respectively connected between the first air bag, the second air bag and the gas direction adjusting device of the control box, so that the gas of the pumping pump can output the gas Each inflatable tube pieces are input, the first airbag and the second airbag.

The creation structure can inhale a plurality of adjacent inflatable strip tubes by initiating a pumping pump by the control box to form a mattress with comfortable elasticity, and the gas direction adjusting device of the control box can control the first air bag. Or the second airbag is inflated, and after the first airbag or the second airbag is inflated, the first inflation section or the second inflation section of the plurality of adjacent inflatable fuel tubes may be respectively raised to make the first inflation section or the second inflation section It can raise the angle of inclination separately, and can perform the lateral turning operation for the human body lying on the bed body, thereby forming a safer turning over, so that the patient lying on the air bed can turn over sideways, only The first inflation section may be raised by an inclination angle to invert the human body toward the horizontal second inflation section, or the second inflation section may be raised by an inclination angle, and the human body is turned toward the horizontal first inflation section. The side of the lying body is turned over, which can avoid overturning and falling outward, so that it can achieve a more practical effect.

All of the following figures are merely illustrative of the basic teachings of the present invention, and the number, position, relationship, and size of the components constituting the preferred embodiment will be The extension will be explained, and the relevant changes implemented after reading and understanding the teachings of this creation are industry skills. In addition, after reading and understanding the teachings of this creation, it is also an industry skill to adapt to the precise dimensions and size ratios of specific strengths, weights, strengths, and similar requirements.

In the different figures, the same reference numerals are used to designate the same or similar elements; in addition, please refer to the text such as "first", "second", "inside", "outside", "end", "edge", "relative" , "Upper", "Bottom", and the like, are provided only for the construction of the viewer's reference map, and are only used to help describe the creation.

According to the drawings, the inventive air bed 10 includes a plurality of adjacent inflatable tubes 30, each of the inflatable tubes 30 having a first inflation section 32 and a second inflation section 34, each inflatable strip tube 30 being formed in the first a recess 38 between the first and second inflation sections 32, 34, each of the inflatable strip tubes 30 further including a first end 32A at the first inflation section 32 and a second end 34A at the end of the second inflation section 34. The recess 38 defines a connecting section 36 on the inflator strip 30. The connecting section 36 includes an air flow passage 37 that communicates the first and second inflating sections 32, 34, resulting in structural strength of the connecting section 36 after inflation of each of the inflating strip tubes 32. Far below the first and second inflation segments 32, 34, the first and second inflation segments 32, 34 are thus relatively foldable (as shown in Figures 5 and 6). As shown, a button 28 is provided on the other end side of the first inflation section 32 and the second inflation section 34 away from the opposite ends thereof.

According to the drawings, the present air bed 10 includes a flexible backing 20, and the backing 20 has a telescopic elasticity, and has a bottom portion 22, and a bottom wall 24 is formed around the bottom portion 22, and the inner wall of the side wall 24 is formed. A plurality of buttons 28 are disposed at equal intervals, and the bottom portion 22 and the side wall 24 of the bottom liner 20 define an accommodating space 26 for accommodating a plurality of adjacent side-by-side inflatable strip tubes 30 such that each of the inflatable strip tubes 30 The button 28 can be buckled with the button 28 on the inner wall of the side wall 24, and the plurality of adjacent inflated strip tubes 30 can be folded to form the bed structure of the air bed. Each of the inflator strips 30 and the outer side of the backing 20 is covered with a bed cover 90, so that each inflating strip tube 30 is located in the bed cover 90 and the backing 20 between.

According to the graphical display, the creation includes a control box 82 that can provide regular airing, deflation, and adjustment of various airflow passages. The control box 82 has an air pump 86, a gas direction adjusting device 88, and a control panel. 84, the control panel 84 has a power switch, a timing pumping and deflation switch and various control means of the operation switch, each of the gas strip tube 30 is connected to the gas direction adjusting device 88 of the control box 82 by a gas pipe 40, so the control box 82 can The gas pumping device 86 is used to control the aeration pump 86 to inflate or not inflate some or all of the gas strip tubes 30. The control panel 84 provides a mode of operation for the user to operate or adjust the control box 82.

According to the drawings, the present invention includes an elongated first airbag 50 and a second airbag 70. The first airbag 40 is partitioned into an independent upper side pocket 52 and a lower side pocket 54, and the second airbag 70 is partitioned into A separate upper side capsule 72 and a lower side pocket 74 are provided. The first airbag 50 and the second airbag 70 are respectively coupled to the lower surface of the underlay 20, causing the upper side pockets 52, 72 of the first and second airbags 50, 70 to rest against the lower surface of the backing 20, first and second. The airbags 50, 70 span a plurality of inflating strip tubes 30 in the middle, and the first airbags 50 are located at the first end 32A of the corresponding plurality of inflating strip tubes 30, and the second airbags 70 are located in the corresponding plurality of inflating strip tubes 30. The second end 34A. The first and second airbags 50, 70 are each in communication with the gas direction adjusting device 88 of the control box 82 with two air tubes 40, causing the upper and lower side pockets 52, 54 of the first airbag 50 and the second airbag 70 to be up and down. The side pockets 72, 74 can be individually inflated by the control box 82 to expand or deflate to contract.

According to the drawings, the present invention further includes a back airbag 60 that includes a spaced apart and independent T-shaped upper bladder 62 and a T-shaped lower bladder 64, such that the back bladder 60 presents a longitudinal section and a transverse section. The T-shaped shape, the length of the transverse section of the back airbag 60 is slightly smaller than the length of each of the inflatable strip tubes 30, and the length of the back airbag 60 is about half of the longitudinal length of the backing 20 perpendicular to the inflatable strip tube 30. The back airbag 60 is fixed on the lower surface of the underlay 20 and located between the first and second airbags 50, 70, and the back airbag 60 is externally The side inflatable strip tube 30 extends toward the other outermost inflatable strip tube 30, and the upper bladder 62 of the back air bag 60 rests against the lower surface of the backing 20. The back air bag 60 communicates with the gas direction adjusting device 88 of the control box 82 with two air pipes 40, so that the upper bag 62 communicates with one air tube 40, and the lower bag 64 communicates with another air tube 40, so that the control box 82 can independently face the back air bag 60. The upper bladder 62 or lower bladder 64 is inflated separately or simultaneously.

According to the drawings, the present invention further includes a foot air bag 80 having a longitudinal length that is approximately the longitudinal length of the inflator tube 30, and the foot air bag 80 is coupled to the lower surface of the backing 20, the first and second air bags. 50, 70 is located between the back air bag 60 and the foot air bag 80, and a gas pipe 40 is connected between the leg air bag 80 and the gas direction adjusting device 88 of the control box 82, so that the gas of the air pump 86 of the control box 82 can be outputted. The foot air bag 80 is input.

For convenience of explanation, it is assumed that each of the inflatable strip tubes 30 of the mattress 10 of the present invention is inflated through the inflation pump 86 of the control box 82 to inflate, thereby causing the inflatable strip tube 30 to have a comfortable elasticity when the person lies in the air bed of the present creation. 10, the gas direction adjusting device 88 of the control box 82 controls a part of the inflating strip tube 30 to fill the air, and the other part of the air strip tube 30 is not filled with air (as shown in the fourth figure), so that each is full The air-filled strip tube 30 has sufficient force to support the human body, and each of the air-filled gas strip tubes 30 does not press the human body, for example, the singularly arranged gas strip tube 30 is continuously injected with gas, and the double-numbered gas strips are continuously injected. The tube 30 is not filled with air, and after a period of time, the inflated strip tube 30 is replaced with a single row of inflated strips 30, and the double rows of the inflated strip tubes 30 are filled with air, so that the position of the air bed 10 for pressing the body for support will change. Therefore, the body of the bedridden is prevented from being subjected to long-term pressure, and the blood cannot be circulated, thereby causing muscle necrosis, and further avoiding acne and skin ulceration.

The first and second airbags 50, 70 of the present air-cushion bed 10 have a function of automatically turning over the body for the bedridden in order to facilitate the description. For convenience of explanation, the control box 82 inflates the lower side bag 54 of the first airbag 50, the first airbag. The lower side bag 54 of 50 is inflated and inflated and the second air bag 70 is not inflated, at this time, since the body of the patient is pressed against each of the inflating strip tubes 30, the lower side of the first air bag 50 The side pocket 54 only pushes the first end 32A of the partial inflation strip tube 30 to bend the connecting section 36 and causes the first inflation section 32 to reverse, while the second inflation section 34 of the partial inflation strip tube 30 does not move (as shown in the fifth figure) The first inflation section 32 of each of the inflatable strip tubes 30 pushed by the lower side pocket 54 of the first airbag 50 pushes the human body toward the respective second inflation sections 34, thereby achieving the effect of turning over. When the patient's turning angle is to be made larger, the control box 82 further drives air into the upper side pocket 52 of the first airbag 50 to expand it (as shown in Figure 6), thus simultaneously at the upper and lower side pockets 52, 54. In the inflated state, the first inflation section 32 of each of the inflatable strip tubes 30 pushed by the first airbag 50 is turned over at a larger angle (greater than 45°, less than or equal to 90°). In addition, the second airbag 70 of the present invention has the same effect as the first airbag 50, that is, after the first airbag 50 is not inflated and the lower side bladder 74 of the second airbag 70 is inflated, the partial inflatable strip rotates 30. The second inflation section 34 is pressed upward by the second airbag 70, and when the upper side bladder 72 of the second airbag 70 is also inflated and inflated, the second inflation section 34 of the partial inflation strip 30 is further inverted by a larger angle. Inflating the first or second airbags 50, 70 with the control box 82 to control the air bed 10 automatically causes the bedridden to roll over in different directions, and utilizes the upper side pockets 52, 72 of the first or second airbags 50, 70 or The lower side pockets 54, 74 are inflated to control the angle of overturning of the bedridden.

In addition, the first and second airbags 50, 70 can also be inflated at the same time, thereby ensuring that the bed-turning angle of the bed-ridden person is not excessively large, thereby causing the face to face the air bed 10 and causing suffocation or difficulty in breathing. The airbag 50 is filled with more air to expand to the extent that the bedridden can be pushed over, and the second airbag 70 is filled with part of the air, so that the second airbag 70 is expanded to a lesser extent than the first airbag 50, so that the first and the first Each of the inflating strip tubes 30 on the second airbags 50, 70 is V-shaped, so that the second airbag 70 is slightly tilted upward, so that the bedridden does not cause a 180° turning over.

If the angle of the upper body of the bedridden is to be adjusted, the inflation of the back airbag 60 is inflated in the lying state shown in the fourth figure. In detail, when the lower bladder 64 of the back airbag 60 is inflated to expand, Longitudinal segment pair of back airbag 60 The plurality of inflatable strip tubes 30 are raised by the back air bag 60, and the other inflatable strip tubes 30 that are not aligned with the back air bag 60 are not raised, so that the upper body above the waist of the bed-ridden person is propped up by the back air bag 60 (eg, The seven segments of the back airbag 60 are used to support the lateral direction of the air bed 10, making the air bed 10 more stable and less prone to tipping. When the upper bag 62 of the back air bag 60 is also inflated and inflated, the inflating strips 30 of the air bed 10 and the back air bag 60 are supported higher, so that the bedridden person will assume a sitting posture (as shown in the eighth figure). The support of the bedridden by the air bed 10 facilitates the conduct of such things as feeding, changing clothes or other necessary care activities.

If the knee portion of the front foot of the lying body is to be bent upward, it can be achieved by inflating the foot air bag 80, which uses the air pump 86 of the control box 82 to drive air into the foot through the air tube 40. In the airbag 80, the foot airbag 80 is inflated to lift the upper inflatable tube 30, thereby raising the knee portion when the human body is lying, so that the human foot can be bent upward to achieve the movable human foot. efficacy. Further, when the bedgear is in a sitting position after the back airbag 60 is inflated, the foot airbag 80 is inflated to keep the bedridden person from slipping in the direction of the foot airbag 80.

The connecting section 36 of each of the inflatable strip tubes 30 of the air bed 10 of the present invention is designed such that the structural strength of the front and rear connecting sections 36 of each of the inflatable strip tubes 30 is much lower than that of the first and second inflating sections 32, 34, and thus When any one end of the inflatable strip tube 30 is subjected to a thrust, the connecting portion 36 of each of the inflating strip tubes 30 is easily deformed, so that only one of the first or second inflating sections 32, 34 of each of the inflating strip tubes 30 is turned upside down. The other maintains the horizontal state, so that even if the bedridden body's body is turned over a large angle, it is not easy to fall off the air bed 10, so the air bed 10 of the present invention can be expanded by the first or second airbag 50, 70 to make the plurality of inflatable strips The first and second inflated sections 32, 34 of the tube 30 are at most perpendicular to each other, so that the air bed 10 of the present invention provides a side-turning effect of a large angle of the bedridden, which can effectively prevent problems such as hemorrhoids in a long-term bedridden person.

Furthermore, the air bed 10 of the present invention provides a back airbag 60 for supporting the bedridden person to get up, and supports the bedridden person to maintain the sitting posture, and such a design is also It helps the caregivers of bedriddens to carry out related care activities. In addition, the inflation of the foot airbag 80 can support the bending of the thigh and the calf of the bedridden, so that the leg of the bedridden can be moved by the airbag 80 of the foot to help the blood circulation of the leg.

The basic teachings of the present invention have been described, and many extensions and variations will be apparent to those having ordinary skill in the art, for example, the connecting section 36 in the drawings may have no airflow path 37, and The first inflation section 32 and the second inflation section 34 of the inflatable strip tube 30 are respectively connected to the air pipe 40 for conveying air and can be separately inflated, and the respective inflation and expansion of the first airbag 50 and the second airbag 70 can be separately lifted. The first inflating section 32 and the second inflating section 34 are raised, and the lateral turning operation of the human body lying on the air bed can also be performed, and the two ends of the connecting section 36 can be coupled to the first inflating section 32 and the second inflating section 34. The first inflating section 32 and the second inflating section 34 can be relatively folded, and both can be lifted and turned, and one is horizontal, to avoid the entire inflatable strip. The tubes 30 are all inclined at an angle such that the human body lying thereon is overturned and falls outward. Or the air bed 10 of the present invention may not include the underlay 20, such that each of the inflatable strip tubes 30 is covered with the bed cover 90 to form a whole group without scattering, and the first and second air bags 50, 70, the back air bag 60, and the foot air bag The 80 series is directly fixed below the inflatable strip tube 30 at the corresponding position.

In addition, each of the inflated strip tubes 30 of the present invention can make the recessed portions 80 face the bedridden when the inflated strip tubes 30 are mounted, in addition to the recesses 80 facing downwards, so that the recesses 80 of the inflated strip tubes 30 are approximately Located on the back of the bedridden, the back of the bedridden is less stressed, allowing the blood to circulate smoothly, further reducing the chance of developing a disease or problem of prolonged bed rest.

The disclosure of the present invention may be embodied in other specific forms without departing from the spirit and scope of the invention. The scope of the present invention is defined by the scope of the appended claims, and is not intended to be limited by the scope of the invention.

(10) ‧‧‧ air bed

(20) ‧ ‧ lining

(22) ‧‧‧ bottom

(24)‧‧‧Side wall

(26) ‧‧‧ accommodating space

(28)‧‧‧ buttons

(30)‧‧‧Inflatable tube

(32)‧‧‧First inflatable section

(32A) ‧ ‧ first end

(34) ‧‧‧second inflation section

(34A) ‧‧‧ second end

(36)‧‧‧Connected segments

(37) ‧‧‧Air passage

(38) ‧ ‧ recess

(40) ‧‧‧ trachea

(50) ‧‧‧First airbag

(52) ‧‧‧ upper sac

(54) ‧‧‧ lower sac

(60) ‧‧‧Back airbag

(62) ‧ ‧ sac

(64) ‧ ‧ sac

(70)‧‧‧second airbag

(72) ‧‧‧ upper sac

(74) ‧‧‧ lower sac

(80)‧‧‧foot airbags

(82) ‧‧‧Control box

(84)‧‧‧Control panel

(86)‧‧‧Air pump

(88)‧‧‧Gas direction adjustment device

(90)‧‧‧ bedspread

The first figure shows an exploded view of the creation.

The second figure shows a schematic diagram of the creation combination.

The third figure shows a cross-sectional view of the second figure 3-3.

The fourth figure shows a longitudinal section view of the creation.

The fifth figure shows a schematic view of the underside of the first balloon of the present invention.

The sixth figure shows a schematic diagram of simultaneous inflation of the upper and lower side capsules of the first airbag of the present invention.

The seventh figure shows the schematic diagram of the inflation of the capsule under the back airbag.

The eighth figure shows the schematic diagram of the simultaneous inflation of the upper and lower capsules of the back airbag.

The ninth figure shows a schematic view of the airbag of the present creation.

(10) ‧‧‧ air bed

(20) ‧ ‧ lining

(22) ‧‧‧ bottom

(24)‧‧‧Side wall

(26) ‧‧‧ accommodating space

(28)‧‧‧ buttons

(30)‧‧‧Inflatable tube

(32)‧‧‧First inflatable section

(32A) ‧ ‧ first end

(34) ‧‧‧second inflation section

(34A) ‧‧‧ second end

(36)‧‧‧Connected segments

(38) ‧ ‧ recess

(40) ‧‧‧ trachea

(50) ‧‧‧First airbag

(52) ‧‧‧ upper sac

(54) ‧‧‧ lower sac

(60) ‧‧‧Back airbag

(62) ‧ ‧ sac

(64) ‧ ‧ sac

(70)‧‧‧second airbag

(72) ‧‧‧ upper sac

(74) ‧‧‧ lower sac

(80)‧‧‧foot airbags

(82) ‧‧‧Control box

(84)‧‧‧Control panel

(86)‧‧‧Air pump

(88)‧‧‧Gas direction adjustment device

(90)‧‧‧ bedspread

Claims (6)

An air bed comprising: a plurality of adjacent inflated strip tubes (30), each inflator strip tube (30) having a first inflated section (32) and a second inflated section (34), and formed in the first a recess (38) between the second inflatable section (32, 34), each of the inflatable strip tubes (30) further including a first end (32A) at the end of the first inflatable section (32), and located at the a second end (34A) of the second inflatable section (34), the recess (38) defining a connecting section (36) on the inflatable strip tube (30); a bed cover (90) covering each of the inflatable strip tubes ( 30) upper; a first airbag (50) coupled to the lower side of the plurality of inflatable strip tubes (30) and located at the first end (32A) of each of the inflatable strip tubes (30); When the inflation is inflated, the first airbag (50) presses against the first end (32A) of the corresponding plurality of inflatable strip tubes (30), causing the first end (32A) to be pressed against each of the inflatable strip tubes (30) The connecting section (36) is bent to flip the first inflation section (32) upward. The air bed according to claim 1, further comprising a second air bag (70) coupled to the lower side of the plurality of inflating strip tubes (30) and located at the second end (34A); and the second air bag (70) Inflated and inflated and the first airbag (50) is not inflated, and the second airbag (70) presses against the second end (34A) of the corresponding plurality of inflatable strip tubes (30), causing the second end (34A) to be pressed The connecting section (36) of the inflatable strip tube (30) is bent such that the second inflation section (34) is turned upside down and the first inflation section (32) of each inflation strip tube (30) remains stationary. The air bed according to claim 1, wherein the first air bag (50) comprises an upper side bag (52) and a lower side bag (54); and a lower side bag of the first air bag (50) ( 54) When inflating and expanding, the lower side pocket (54) is pressed against the first of the plurality of inflatable strip tubes (30) The end (32A), the connecting section (36) of each of the inflating strip tubes (30) causing the first end (32A) to be pressed is bent such that the first inflating section (32) is turned upside down, and each inflating strip tube (30) The second inflation section (34) remains stationary, and further inflates the upper side capsule (52) of the first airbag (50) to expand after the lower side pocket (54) of the first airbag (50) is inflated, the first airbag The upper side pocket (52) of (50) presses against the first end (32A) of the corresponding plurality of inflatable strip tubes (30), causing the connecting sections of the respective inflatable strip tubes (30) to be pressed by the first end (32A) ( 36) Further bending causes the first inflation section (32) to flip upward again, and the second inflation section (34) of each inflation strip tube (30) remains stationary. The air bed according to claim 2, wherein the second air bag (70) comprises an upper side bag (72) and a lower side bag (74) integrated; and a lower side bag of the second air bag (70) ( 74) When inflated and inflated, the lower side bladder (74) presses against the second end (34A) of the corresponding plurality of inflatable strip tubes (30), causing the inflated strip tubes (30) to be pressed by the second end (34A) The connecting section (36) is bent such that the second inflation section (34) is turned upside down, and the second inflation section (34) of each inflation strip tube (30) remains stationary, when the lower side pocket of the second airbag (70) ( 74) further inflating the upper side pocket (72) of the second airbag (70) to inflate after inflation, and the upper side pocket (72) of the second airbag (70) is pressed against the second of the corresponding plurality of inflatable strip tubes (30) The end (34A), the connecting section (36) of each of the inflating strip tubes (30) causing the second end (34A) to be pressed is further bent to cause the first inflating section (32) to be turned up again, and each inflating strip tube ( The second inflation section (34) of 30) remains stationary. The air bed according to claim 1, further comprising a back airbag (60), the back airbag (60) having an upper capsule (62) and a lower capsule (64), and a back airbag (60) The length is about half of the longitudinal length of the backing (20) perpendicular to the inflatable strip tube (30), And connected to the lower side of the longitudinal line of the bottom liner (20) and to the end of the bottom lining (20), the upper sac (62) and the lower sac (64) are respectively connected with the gas direction adjusting device of the control box (82). The air tube (40) allows the gas output from the pumping pump of the control box (82) to be input into the lower bag (64) via the air tube (40) or simultaneously into the upper bag (62) and the lower bag (64). The back airbag (60) can be adjusted to tilt the different angles of the adjacent adjacent inflatable strips (30) to different angles. The air bed according to claim 1, further comprising a foot airbag (80) having a length equal to a length of the inflatable strip tube (30), the foot airbag (80) being coupled to The lower side of the bottom liner (20) is opposite to the opposite end of the back airbag (60), and a gas pipe (40) is connected between the foot airbag (80) and the gas direction adjusting device of the control box (82) to make the control box (82) The gas pumped by the pumping pump can be input into the foot airbag (80) via the air tube (40), and can be raised to a height on the inflatable strip tube (30) for raising the knee when the human body is lying down. Part.