Adaptive pressure-adjustable airbag mattress based on multi-pressure sensing technology

Abstract

The present invention relates to the technical field of airbag mattresses, specifically to an adaptively adjustable air pressure airbag mattress based on multi-pressure sensing technology. The airbag comprises an airbag in the shape of a flat square, the airbag comprising an outer skin and a separator membrane, the separator membrane dividing the internal space of the airbag into a plurality of elongated air cavities. A linked air valve portion is provided on the left side of the airbag, the linked air valve portion comprising a valve body, a piston, an adaptive sliding device, a round cover, and a permanent magnet cover, and also comprising an inflation device. The present invention compresses the airbag to cause the piston to slide, thereby driving the adaptive sliding device to link the adjacent pistons to slide. When a user's body part compresses the airbag, the multiple elongated air cavities near the compressed area can simultaneously and to varying degrees contract, adapting to the human body shape to form a smooth concave surface, thereby enabling the airbag to better fit the user's body and avoiding the formation of abrupt gaps between multiple independent airbags, which may cause the user to have an empty waist or empty pillow.

Description

Technical Field

[0001] The present invention relates to the technical field of airbag mattresses, in particular to an adaptive pressure-adjusting airbag mattress based on multi-pressure sensing technology. Background Art

[0002] With the continuous advancement of material civilization and technological technology, the types of mattresses used by modern people have gradually diversified, mainly including: spring mattresses, palm mattresses, latex mattresses, water mattresses, spinal protection mattresses, air mattresses, magnetic mattresses, etc. Air mattresses refer to mattresses that have strong flexibility and elasticity and expand in volume after being inflated.

[0003] Application number CN113907564A discloses an inflatable mattress with adjustable back and foot angles, including a symmetrically arranged support frame; the invention uses a first motor and a second motor to respectively control the first support rod and the second support rod to rise, causing the angle between them and the support frame to change, thereby being able to change the angles of the back and feet according to the needs of different users, improving comfort in use and eliminating the limitation of not being able to change the back and foot angles. At the same time, through the valve assembly, when connecting the telescopic tubes, the connected telescopic tubes can be quickly interconnected, facilitating the connection of multiple adjacent small air bags, and the unconnected telescopic tubes are in a closed state to prevent air leakage, thereby improving the efficiency of connecting multiple telescopic tubes to each other and improving the inflation efficiency of the small air bags.

[0004] This invention, which uses a first motor and a second motor to control the upward movement of the first and second support rods, can indeed adjust the back and foot support angles according to different user needs. However, due to the gaps between the multiple independent small air cells, the user's body cannot perfectly fit the mattress, resulting in an empty waist or empty pillow, which can lead to fatigue. A single air cell is less likely to achieve the elasticity and adjustability of multiple air cells, and is also more expensive. Summary of the Invention

[0005] In order to overcome the defects in the prior art, the purpose of the present invention is to provide an adaptive pressure-adjustable airbag mattress based on multi-pressure sensing technology to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides an adaptively pressure-adjustable airbag mattress based on multi-pressure sensing technology, comprising an airbag in the shape of a flat square, the airbag comprising an outer skin and a plurality of partition membranes that divide the space within the outer skin, the space within the outer skin being divided by the partition membranes into a plurality of elongated spaces, namely, elongated air cavities; a linked air valve portion for automatically distributing air within the plurality of elongated air cavities is fixedly mounted on the left side wall of the airbag, and an inflation device for ventilating the elongated air cavities is disposed within the airbag;

[0007] The linkage air valve portion includes a plurality of valve bodies connected to the ports of the elongated air cavity, a piston slidably inserted into the valve body, a pressure sensor fixed to the left end of the piston, a plurality of adaptive sliding devices fixedly arranged between two adjacent pistons, and a round cover threadedly connected to the outer end of the valve body, a spring is connected between the pressure sensor and the round cover, a valve is provided on the rear side wall of the round cover, a permanent magnet cover is slidably provided in the middle of the outer end surface of the round cover, and an electromagnet for controlling the permanent magnet cover to open and close the valve is fixedly provided on the top of the outer end surface of the round cover;

[0008] The adaptive sliding device includes a fixed slider, a movable slider slidably connected to one side of the fixed slider, and a rubber band fixedly connected between the upper and lower ends of the fixed slider and the movable slider; the fixed slider and the movable slider are respectively fixedly mounted on two adjacent pistons, that is, a plurality of the fixed sliders are fixedly mounted on the outer side of one of the pistons, and a plurality of the movable sliders are fixedly mounted on the outer side of the other piston;

[0009] The inflation device includes an outer sleeve placed horizontally at the ports of several long air cavities and an inner tube slidably inserted into the outer sleeve. The upper end of the outer sleeve is provided with an outer hole corresponding to each of the valve bodies, and the inner tube is provided with an inner hole corresponding to each of the outer holes.

[0010] As a further improvement of the present technical solution, the separation membrane is in a wavy shape that is easy to compress, and an outer shell ring for closing the valve body is fixedly provided on the left side of the airbag, and a support plate is installed on the left side of the outer shell ring; the valve body is cylindrical in shape, and a cylindrical head is connected to the center of the right end of the valve body, the outer diameter of the cylindrical head is smaller than the outer diameter of the valve body, the right end of the cylindrical head is closed, and a number of holes for connecting to the airbag are opened on its arc outer side wall.

[0011] As a further improvement of the present technical solution, a number of deceleration discs for slowing down the flow of gas are fixedly arranged in the valve body, the deceleration discs are all located between the corresponding piston and the corresponding cylindrical head, a number of circular holes for ventilation are opened on the deceleration discs, and the deceleration discs are all perpendicular to the valve body.

[0012] As a further improvement of the present technical solution, two slide rail openings for limiting the sliding stroke of the piston are symmetrically opened on the arc outer wall of the valve body, and extension blocks are fixedly provided at the outside of the piston corresponding to the slide rail openings, and the extension blocks are slidably connected to the corresponding slide rail openings; when the piston slides, the extension blocks slide synchronously, and the slide rail openings are always in a closed state.

[0013] As a further improvement of the present technical solution, the side of the extension block away from the corresponding valve body is a plane, all the extension blocks are parallel to each other, the fixed sliding block and the movable sliding block are fixedly mounted on the side wall of the corresponding extension block away from the valve body by bolts, and the longitudinal cross-section shapes of the fixed sliding block and the movable sliding block are the same.

[0014] As a further improvement of the present technical solution, the fixed slider and the movable slider are rotatably connected with a plurality of joint buckles at the upper and lower ends, all the joint buckles of the same adaptive sliding device correspond one to one in the front and back, and each rubber band is fixedly connected between the two corresponding joint buckles in the front and back.

[0015] As a further improvement of the present technical solution, a convex slider is fixedly provided on the side of the fixed slider close to the corresponding movable slider, and sliding bars are symmetrically provided at the upper and lower edges of the convex slider away from the fixed slider. A concave sliding groove is provided on the side of the movable slider close to the corresponding fixed slider, and sliding rail grooves are provided on the upper and lower groove walls of the concave sliding groove. The convex slider is slidably connected to the concave sliding groove, and the sliding bar is slidably connected to the corresponding sliding rail groove.

[0016] As a further improvement of the present technical solution, a ventilation hole is provided at each of the valves on the support plate, and ventilation gauze is provided at the ventilation hole; the permanent magnet cover is in an inverted convex shape, and the round cover is installed at the electromagnet with a concave slide rail matching the permanent magnet cover.

[0017] As a further improvement of the present technical solution, an air inlet hole for connecting to the outer sleeve is opened at the lower end of the valve body, the air inlet hole is always located between the retarding disc and the piston, and the outer sleeve is connected to the valve body by bolts; a T-shaped bracket is fixedly provided on the left side of the outer sleeve, and an L-shaped bracket is fixedly provided on the right side of the outer sleeve, and the L-shaped bracket is fixedly installed on the inner bottom surface of the outer shell ring by bolts.

[0018] As a further improvement of the present technical solution, the length of the inner tube is greater than that of the outer tube, and both are cylindrical tubes with a closed front end and an open rear end; a handle is vertically fixed to the outside of the rear end of the inner tube, the rear section of the inner tube is provided with an external thread, and the rear section of the outer tube is provided with an internal thread matching the external thread.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. This adaptively adjustable air pressure airbag mattress based on multi-pressure sensing technology uses an airbag, valve body, piston, adaptive sliding device, round cover and permanent magnet cover. When the airbag is pressed by a part of the user's body, the airbag causes the piston to slide, thereby driving the adaptive sliding device to slide adjacent pistons in conjunction. This can cause multiple long air cavities near the compressed area to contract simultaneously and to varying degrees, adapting to the shape of the human body to form a smooth concave surface, allowing the airbag to better fit the user's body and avoiding the formation of abrupt gaps between multiple independent airbags. As a result, the user's body can perfectly fit the mattress, avoiding the formation of an empty waist or empty pillow, which in turn causes muscle tension and fatigue in the corresponding parts of the body.

[0021] 2. This self-adaptive air pressure airbag mattress based on multi-pressure sensing technology, through the provided valve body, pressure sensor, permanent magnet cover and electromagnet, can control the electromagnet to close any airbag that has been adjusted after the user lies on the airbag and the airbag is self-adaptive adjusted, thereby locking the contraction state of a single or multiple airbags, and then freely controlling the opening and closing of the self-adaptive function of different areas on the airbag to adapt to the usage habits of different users.

[0022] 3. This self-adaptive air pressure-adjustable airbag mattress based on multi-pressure sensing technology connects the same outer tube and inner tube at the lower end of the valve body, so that multiple long air cavities can be independent of each other. By rotating the inner tube, the inner holes of the inner tube and the outer tube are aligned with the outer holes, and all the long air cavities can be inflated and deflated uniformly, ensuring the efficiency of airbag inflation and deflation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the various components in the drawings are merely illustrative and are used to help understand the present invention, and are not intended to specifically limit the shapes and proportional dimensions of the various components of the present invention. Those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to specific circumstances under the guidance of the present invention.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the overall split structure of the present invention;

[0026] Figure 3 Schematic diagram of the structure of the airbag in the present invention;

[0027] Figure 4 Schematic diagram of the longitudinal cross-section structure of the airbag of the present invention;

[0028] Figure 5 For the present invention Figure 2 A partial enlarged view of point A in the middle;

[0029] Figure 6 Schematic diagram of the structure of the permanent magnet cover in the present invention;

[0030] Figure 7 This is a schematic diagram of the partial disassembly structure of the linkage air valve portion of the present invention;

[0031] Figure 8 is a transverse cross-sectional view of the valve body of the present invention;

[0032] Figure 9 Schematic diagram of the structure of the adaptive sliding device in the present invention;

[0033] Figure 10 Schematic diagram of the disassembled structure of the adaptive sliding device in the present invention;

[0034] Figure 11 is a longitudinal cross-sectional view of the adaptive sliding device of the present invention;

[0035] Figure 12 This is a schematic diagram of the transverse cross-sectional structure of the valve body of the present invention;

[0036] Figure 13 Schematic diagram of the structure of the outer sleeve in the present invention;

[0037] Figure 14 Schematic diagram of the structure of the inner cannula in the present invention;

[0038] Figure 15 is a longitudinal cross-sectional view of the inflation device of the present invention;

[0039] The meaning of each number in the figure is:

[0040] 1. Airbag; 10. Outer skin; 11. Separating membrane; 12. Long air cavity;

[0041] 2. Linked air valve unit; 20. Outer casing ring; 21. Support plate; 22. Ventilation gauze; 23. Valve body; 230. Slide rail opening; 231. Cylindrical head; 232. Air inlet; 233. Retarder disc; 24. Piston; 240. Extension block; 25. Pressure sensor; 26. Adaptive sliding device; 260. Fixed slider; 261. Convex slider; 2611. Sliding bar; 262. Moving slider; 2620. Concave slide groove; 2621. Slide rail groove; 263. Rubber band; 2630. Joint buckle; 27. Spring; 28. Round cover; 280. Valve; 29. Permanent magnet cover; 290. Electromagnet; 291. Concave slide rail;

[0042] 3. Inflating device; 30. T-shaped bracket; 301. L-shaped bracket; 31. Outer sleeve; 310. Outer hole; 32. Inner tube; 320. Inner hole; 321. Handle. DETAILED DESCRIPTION

[0043] The details of the present invention can be more clearly understood in conjunction with the accompanying drawings and the description of the specific embodiments of the present invention. However, the specific embodiments of the present invention described herein are for the purpose of explaining the present invention only and are not to be construed as limiting the present invention in any way. Based on the teachings of the present invention, skilled artisans can conceive of any possible variations based on the present invention, which should be considered to fall within the scope of the present invention. The terms "mounted" and "connected" should be understood broadly and can refer to direct connection or indirect connection through an intermediary.

[0044] The terms "central axis," "vertical," "horizontal," "front," "back," "up," "down," "left," "right," "top," "bottom," "inside," and "outside" used herein to indicate positions or location relationships are based on the positions or location relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, in the description of the present invention, "several" means two or more, unless otherwise specifically defined.

[0045] See also Figures 1-15 As shown, the present invention provides an adaptively adjustable air pressure airbag mattress based on multi-pressure sensing technology, comprising an airbag 1 in the shape of a flat square. The airbag 1 comprises an outer skin 10 and a plurality of partition membranes 11 that divide the interior space of the outer skin 10. The interior space of the outer skin 10 is divided into a plurality of elongated spaces, namely, elongated air cavities 12, by the plurality of partition membranes 11. A linkage air valve portion 2 for automatically distributing air within the plurality of elongated air cavities 12 is fixedly mounted on the left side wall of the airbag 1. An inflation device 3 for ventilating the elongated air cavities 12 is disposed within the airbag 1.

[0046] The linked air valve portion 2 includes a plurality of valve bodies 23 connected to the ports of the elongated air cavity 12, a piston 24 slidably inserted into the interior of the valve body 23, a pressure sensor 25 fixed to the left end of the piston 24, a plurality of adaptive sliding devices 26 fixedly arranged between two adjacent pistons 24, and a circular cover 28 threadedly connected to the outer end of the valve body 23. A spring 27 is connected between the pressure sensor 25 and the circular cover 28. A valve 280 is provided on the rear side wall of the circular cover 28. A permanent magnet cover 29 is slidably provided in the middle of the outer end surface of the circular cover 28. An electromagnet 290 for controlling the permanent magnet cover 29 to open and close the valve 280 is fixedly provided at the top of the outer end surface of the circular cover 28.

[0047] The adaptive sliding device 26 includes a fixed slider 260, a movable slider 262 slidably connected to one side of the fixed slider 260, and a rubber band 263 fixedly connected between the upper and lower ends of the fixed slider 260 and the movable slider 262. The fixed slider 260 and the movable slider 262 are respectively fixedly mounted on two adjacent pistons 24, that is, a plurality of fixed sliders 260 are fixedly mounted on the outer side of one piston 24, and a plurality of movable sliders 262 are fixedly mounted on the outer side of the other piston 24.

[0048] The inflation device 3 includes an outer sleeve 31 placed horizontally at the ends of several long air cavities 12 and an inner sleeve 32 slidably inserted into the outer sleeve 31. The upper end of the outer sleeve 31 is provided with an outer hole 310 corresponding to each valve body 23, and the inner sleeve 32 is provided with an inner hole 320 corresponding to each outer hole 310.

[0049] Specifically, the separation membrane 11 is in a wavy shape that is easy to compress. When the airbag 1 is squeezed downward at the separation membrane 11, the separation membrane 11 will not be compressed to form a rough curved surface; an outer shell ring 20 for closing the valve body 23 is fixedly provided on the left side of the airbag 1, and a support plate 21 is closed and installed on the left side of the outer shell ring 20; the valve body 23 is cylindrical in shape, and a cylindrical head 231 is connected to the center of the right end of the valve body 23. The outer diameter of the cylindrical head 231 is smaller than the outer diameter of the valve body 23. The right end of the cylindrical head 231 is closed and a number of holes for connecting to the airbag 1 are opened on its arc outer side wall, so that it is more convenient to connect and connect to the airbag 1 on the right side; the valve body 23 and its internal piston 24 and other structures can be extended downward to the bottom of the airbag 1 by installing a right-angle elbow, and the linkage valve part 2 can also be installed with support legs as needed, so that the outer shell ring 20 and the valve body 23 are leaning against the edge of the bed as a whole, so that the airbag 1 is spread flat on the entire bed surface for people to use.

[0050] Preferably, a plurality of deceleration discs 233 for slowing down the flow of gas are fixedly provided in the valve body 23. The deceleration discs 233 are all located between the corresponding pistons 24 and the corresponding cylindrical heads 231. A plurality of circular holes for ventilation are provided on the deceleration discs 233. The deceleration discs 233 are all perpendicular to the valve body 23, so that the air in the long air cavity 12 can gradually and slowly enter the valve body 23, so that the airbag 1 can gradually and slowly shrink after being compressed, thereby avoiding discomfort to the user and increasing the service life of the piston 24.

[0051] Furthermore, two slide rail openings 230 for limiting the sliding stroke of the piston 24 are symmetrically opened on the arc outer wall of the valve body 23. Extension blocks 240 are fixedly provided at the corresponding slide rail openings 230 on the outside of the piston 24, and the extension blocks 240 are slidably connected to the corresponding slide rail openings 230; when the piston 24 slides, the extension blocks 240 slide synchronously, thereby facilitating the installation of the adaptive sliding device 26 and ensuring that the sliding direction of the adaptive sliding device 26 is consistent with the sliding direction of the piston 24, and the slide rail openings 230 are always in a closed state, thereby ensuring the airtightness of the valve body 23.

[0052] Specifically, the side of the extension block 240 away from the corresponding valve body 23 is a plane, all the extension blocks 240 are parallel to each other, the fixed slider 260 and the movable slider 262 are fixedly installed on the side wall of the corresponding extension block 240 away from the valve body 23 by bolts, and the longitudinal cross-section shape of the fixed slider 260 and the movable slider 262 is the same.

[0053] Preferably, a plurality of joint buckles 2630 are rotatably connected at the upper and lower ends of the fixed slider 260 and the movable slider 262. All the joint buckles 2630 of the same adaptive sliding device 26 correspond one to one in the front and back, and each rubber band 263 is fixedly connected between the two corresponding joint buckles 2630 in the front and back. Therefore, when the fixed slider 260 and the corresponding movable slider 262 slide relative to each other, the angle of the rubber band 263 can rotate with the joint buckle 2630, and thus the tension of the rubber band 263 itself can always act along the direction of the rubber band 263.

[0054] The cam 261 is fixed to the side of the fixed slider 260 near the corresponding movable slider 262, and the cam 261 is symmetrically provided with a slide bar 2611 at the upper and lower edges of the cam 261 away from the fixed slider 260. The movable slider 262 is provided with a concave groove 2620 on the side near the corresponding fixed slider 260, and the upper and lower groove walls of the concave groove 2620 are provided with a slide rail groove 2621. The cam 261 is slidably connected to the concave groove 2620, and the slide bar 2611 is slidably connected to the corresponding slide rail groove 2621. If the pressure on a single elongated air cavity 12 is sufficiently greater than the pressure on the adjacent elongated air cavity 12, the fixed slider 260 and the corresponding movable slider 262 will slide relative to each other to the limit of travel, so that one end of the cam 261 is completely in contact with the groove wall of the concave groove 2620, and then the fixed slider 260 and the corresponding movable slider 262 are completely fastened, ensuring that the contraction degrees of any two adjacent elongated air cavities 12 do not differ too much to form a gap.

[0055] Secondly, the support plate 21 is provided with a vent hole corresponding to each valve 280, and a vent gauze 22 is provided at the vent hole to ensure that the piston 24 can slide; the permanent magnet cover 29 is in an inverted convex shape, and the round cover 28 is installed with a concave slide rail 291 matching the permanent magnet cover 29 at the electromagnet 290, so that the permanent magnet cover 29 can close the valve 280 more tightly.

[0056] In this embodiment, Figure 12 The lower end of the valve body 23 is provided with an air inlet 232 for communicating with the outer sleeve 31. The air inlet 232 is always located between the retarding disc 233 and the piston 24. The outer sleeve 31 is connected to the valve body 23 by bolts. Figure 5 A T-shaped bracket 30 is fixedly provided on the left side of the outer sleeve 31, and an L-shaped bracket 301 is fixedly provided on the right side of the outer sleeve 31. The L-shaped bracket 301 is fixedly installed on the inner bottom surface of the outer shell ring 20 by bolts.

[0057] Preferably, the length of the inner tube 32 is greater than that of the outer tube 31, and both are cylindrical tubes with a closed front end and an open rear end; a handle 321 is vertically fixed to the outside of the rear end of the inner tube 32, and the rear section of the inner tube 32 is provided with an external thread, and the rear section of the outer tube 31 is provided with an internal thread matching the external thread, so that after the inner tube 32 is slid into the right end of the outer tube 31, the thread of the rear section of the inner tube 32 is connected to the outer tube 31 to prevent the inner tube 32 from continuing to slide.

[0058] In addition, it should be noted that the pressure sensor 25, electromagnet 290 and supporting controller and other components involved in the present invention are all universal standard parts or components known to technical personnel in this field, and their structures and principles are known to technical personnel through technical manuals or through conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and adaptive controllers and power supplies, are connected through wires. The specific connection means should refer to the working principle of the present invention. The electrical connection between each electrical component is completed in a sequential working order, and the detailed connection means are all well-known technologies in this field.

[0059] Working principle of the present invention:

[0060] If the airbag 1 needs to be deflated, the handle 321 is turned so that the outer hole 310 is aligned with the inner hole 320. Then, the gas in the long air cavity 12 can enter the valve body 23 and enter the inner hole 320 through the air inlet hole 232 and then be discharged from the rear end of the inner tube 32. If the airbag 1 needs to be inflated, the handle 321 is turned so that the outer hole 310 is aligned with the inner hole 320, and an air pump is connected to the rear end of the inner tube 32 to inflate the airbag.

[0061] When the inflated user lies down and the user's body parts press on the airbag 1, the air in the long air cavity 12 enters the valve body 23 from the cylindrical head 231, causing the piston 24 to slide, thereby the extension block 240 to slide synchronously, thereby driving the corresponding fixed slider 260 or the movable slider 262 fixed on the extension block 240 to slide. When the piston 24 drives the fixed slider 260 to slide, the fixed slider 260 slides relative to the corresponding movable slider 262. At this time, the rubber band 263 stretches to generate tension, which then drives the adjacent piston 24 where the movable slider 262 is located. The movable slider 262 can also drive the fixed slider 260 to slide. If the pressure on a single long air cavity 12 is large enough, When the other adjacent long air cavities 12 are not subjected to force or are subjected to relatively little force, the fixed slider 260 and the corresponding movable slider 262 will slide relative to each other to the limit of travel, and then the fixed slider 260 and the corresponding movable slider 262 will be completely fastened, so that continuing to compress the single long air cavity 12 will cause the corresponding two pistons 24 to slide synchronously from then on, thereby ensuring that the contraction degrees of any two adjacent long air cavities 12 do not differ too much to form a gap; any two adjacent pistons 24 can pull each other through the adaptive sliding device 26, thereby enabling multiple long air cavities 12 near the compressed area to contract simultaneously and to different degrees, adapting to the shape of the human body to form a smooth concave surface;

[0062] When the piston 24 slides, the spring 27 is compressed, thereby limiting the maximum sliding stroke of the piston 24, and further limiting the maximum contraction degree of the long air cavity 12; when the piston 24 slides, the pressure sensor 25 can sense the pressure change of the piston 24 squeezing the spring 27, and thereby control the electromagnet 290 to release the permanent magnet cover 29 to close the valve 280 at the appropriate time, so that the corresponding piston 24 is locked, and the contraction degree of the corresponding long air cavity 12 is also locked; the user can actively release the permanent magnet cover 29 through the controller to close any valve 280 according to his or her own body shape or lying posture habits, or keep some valves 280 continuously open.

[0063] Finally, it should be noted that the above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent variations or modifications made in accordance with the spirit and substance of the present invention are intended to be encompassed within the scope of protection of the present invention.

Claims

1. An adaptive air pressure regulating airbag mattress based on multi-pressure sensing technology, comprising an airbag (1) in the shape of a flat square, characterized in that: The airbag (1) is composed of an outer skin (10) and a plurality of partition membranes (11) for partitioning the inner space of the outer skin (10). The inner space of the outer skin (10) is divided into a plurality of long strips of space by the plurality of partition membranes (11), which are long air cavities (12). A linkage air valve portion (2) for automatically distributing the gas inside the plurality of long air cavities (12) is fixedly provided on the left side wall of the airbag (1). An inflation device (3) for ventilating the long air cavities (12) is provided inside the airbag (1). The linkage air valve portion (2) comprises a plurality of valve bodies (23) connected to the ports of the long air cavity (12), a piston (24) slidably inserted into the valve body (23), a pressure sensor (25) fixed at the left end of the piston (24), a plurality of adaptive sliding devices (26) fixedly arranged between two adjacent pistons (24), and a round cover (28) threadedly connected to the outer end of the valve body (23), a spring (27) being connected between the pressure sensor (25) and the round cover (28), a valve (280) being provided on the rear side wall of the round cover (28), a permanent magnet cover (29) being slidably provided at the middle of the outer end surface of the round cover (28), and an electromagnet (290) for controlling the permanent magnet cover (29) to open and close the valve (280) being fixedly provided at the top of the outer end surface of the round cover (28); The adaptive sliding device (26) includes a fixed slider (260), a movable slider (262) slidably connected to one side of the fixed slider (260), and a rubber band (263) fixedly connected between the upper and lower ends of the fixed slider (260) and the movable slider (262); the fixed slider (260) and the movable slider (262) are respectively fixedly mounted on two adjacent pistons (24), that is, a plurality of the fixed sliders (260) are fixedly mounted on the outer side of one of the pistons (24), and a plurality of the movable sliders (262) are fixedly mounted on the outer side of the other piston (24); The inflation device (3) comprises an outer sleeve (31) disposed transversely at the ends of a plurality of long air cavities (12) and an inner sleeve (32) slidably inserted into the outer sleeve (31). An outer hole (310) is provided at the upper end of the outer sleeve (31) corresponding to each of the valve bodies (23), and an inner hole (320) is provided at the inner sleeve (32) corresponding to each of the outer holes (310).

2. The self-adaptive air pressure airbag mattress based on multi-pressure sensing technology according to claim 1, characterized in that: The separation membrane (11) is in a wave shape that is easy to compress. An outer shell ring (20) for closing the valve body (23) is fixedly provided on the left side of the airbag (1), and a support plate (21) is installed on the left side of the outer shell ring (20). The valve body (23) is in a cylindrical shape, and a cylindrical head (231) is connected to the center of the right end of the valve body (23). The outer diameter of the cylindrical head (231) is smaller than the outer diameter of the valve body (23). The right end of the cylindrical head (231) is closed, and a plurality of holes for connecting with the airbag (1) are opened on its arc outer side wall.

3. The self-adaptive air pressure airbag mattress based on multi-pressure sensing technology according to claim 2, characterized in that: A plurality of deceleration discs (233) for decelerating the flow of gas are fixedly arranged in the valve body (23), and the deceleration discs (233) are located between the corresponding piston (24) and the corresponding cylindrical head (231). The deceleration discs (233) are provided with a plurality of circular holes for ventilation, and the deceleration discs (233) are perpendicular to the valve body (23).

4. The self-adaptive air pressure regulating airbag mattress based on multi-pressure sensing technology according to claim 3, characterized in that: Two slide rail openings (230) for limiting the sliding stroke of the piston (24) are symmetrically provided on the arc outer wall of the valve body (23), and extension blocks (240) are fixedly provided on the outside of the piston (24) corresponding to the slide rail openings (230), and the extension blocks (240) are slidably connected to the corresponding slide rail openings (230); when the piston (24) slides, the extension blocks (240) slide synchronously, and the slide rail openings (230) are always in a closed state.

5. The self-adaptive air pressure regulating airbag mattress based on multi-pressure sensing technology according to claim 4, characterized in that: The side of the extension block (240) away from the corresponding valve body (23) is a plane, all the extension blocks (240) are parallel to each other, the fixed slider (260) and the movable slider (262) are fixedly mounted on the side wall of the corresponding extension block (240) away from the valve body (23) by bolts, and the longitudinal cross-section shapes of the fixed slider (260) and the movable slider (262) are the same.

6. The self-adaptive air pressure regulating airbag mattress based on multi-pressure sensing technology according to claim 5, characterized in that: A plurality of joint buckles (2630) are rotatably connected at the upper and lower ends of the fixed slider (260) and the movable slider (262). All the joint buckles (2630) of the same adaptive sliding device (26) correspond to each other front to back, and each rubber band (263) is fixedly connected between two corresponding joint buckles (2630) front to back.

7. The self-adaptive air pressure regulating airbag mattress based on multi-pressure sensing technology according to claim 6, characterized in that: A convex sliding block (261) is fixedly provided on a side of the fixed sliding block (260) close to the corresponding movable sliding block (262); sliding bars (2611) are symmetrically provided at the upper and lower edges of the convex sliding block (261) away from the fixed sliding block (260); a concave sliding groove (2620) is provided on a side of the movable sliding block (262) close to the corresponding fixed sliding block (260); and sliding rail grooves (2621) are provided on the upper and lower groove walls of the concave sliding groove (2620); the convex sliding block (261) is slidably connected to the concave sliding groove (2620), and the sliding bar (2611) is slidably connected to the corresponding sliding rail groove (2621).

8. The self-adaptive air pressure airbag mattress based on multi-pressure sensing technology according to claim 7, characterized in that: The support plate (21) is provided with a ventilation hole corresponding to each of the air valves (280), and a ventilation gauze (22) is provided at the ventilation hole; the permanent magnet cover (29) is in an inverted convex shape, and the circular cover (28) is provided with a concave slide rail (291) matching the permanent magnet cover (29) at the electromagnet (290).

9. The self-adaptive air pressure regulating airbag mattress based on multi-pressure sensing technology according to claim 8, characterized in that: An air inlet (232) for communicating with the outer sleeve (31) is provided at the lower end of the valve body (23). The air inlet (232) is always located between the deceleration disc (233) and the piston (24). The outer sleeve (31) is connected to the valve body (23) by bolts. A T-shaped bracket (30) is fixedly provided on the left side of the outer sleeve (31), and an L-shaped bracket (301) is fixedly provided on the right side of the outer sleeve (31). The L-shaped bracket (301) is fixedly mounted on the inner bottom surface of the outer shell ring (20) by bolts.

10. The self-adaptive air pressure regulating airbag mattress based on multi-pressure sensing technology according to claim 9, characterized in that: The length of the inner tube (32) is greater than that of the outer tube (31), and both are cylindrical tubes with a closed front end and an open rear end; a handle (321) is vertically fixed to the outside of the rear end of the inner tube (32), and the rear section of the inner tube (32) is provided with an external thread, and the rear section of the outer tube (31) is provided with an internal thread matching the external thread.

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