Laser measurement adjusting mechanism for adjusting hardness of air bag mattress and application of laser measurement adjusting mechanism

By using distributed control of matrix airbag groups and independent air valves, combined with laser ranging, the airbag mattress can be adjusted quickly and accurately, solving the problems of airflow short-circuiting and adjustment lag in existing technologies, and improving adaptability and reliability.

CN121754032APending Publication Date: 2026-03-31FOSHAN FEILI MENGTE FURNITURE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-24
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing airbag mattress adjustment mechanisms lack time-sequential isolation control, resulting in airflow short-circuiting, low adjustment efficiency, difficulty in achieving rapid, independent, and precise local response, and adaptive adjustment suffers from lag and insufficient precision.

Method used

It employs a matrix airbag assembly and independent air valves, combined with laser ranging and a distributed sensing network. It acquires the mattress deformation profile in real time through multi-point lasers, achieving point-to-point local closed-loop control. It utilizes a magnetically driven valve core and a pen-style electric actuator to achieve precise switching and isolation of the air path.

Benefits of technology

It enables rapid and precise support adjustment for the user's shoulders, waist, hips, and other areas, avoids airflow short-circuiting, improves the system's adaptability and reliability, and ensures the safety and service life of the air pump.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of air bag bed inflation, in particular to a laser measurement adjusting mechanism for adjusting the hardness of an air bag mattress and application, and the laser measurement adjusting mechanism comprises an air bag bed body, an air supply pipeline arranged in the air bag bed body and a plurality of matrix air bag groups regularly distributed above the air supply pipeline; the matrix air bag set comprises two sets of telescopic air bags distributed in a matrix mode, a distance measuring instrument arranged between the two sets of telescopic air bags, an independent air valve arranged below the distance measuring instrument, an inflation pipe and an exhaust pipe, wherein the inflation pipe and the exhaust pipe are connected between the independent air valve and the two sets of telescopic air bags. A distributed sensing and executing unit network is constructed through the matrix air bag groups, so that the system can accurately obtain the deformation outline of the bottom of the mattress in real time through multi-point laser, the telescopic air bags in the matrix air bag groups in the corresponding areas are directly and independently driven to inflate, and through a point-to-point local closed-loop control mode, the deformation outline of the bottom of the mattress can be accurately obtained. And global coordination in a traditional scheme is abandoned.
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Description

Technical Field

[0001] This invention relates to the field of airbag mattress inflation technology, and more specifically, to a laser measurement and adjustment mechanism for adjusting the firmness of an airbag mattress and its application. Background Technology

[0002] Airbag mattresses allow for adjustable firmness by regulating the amount of air inside. Each airbag inflates and deflates independently, providing precise support to different parts of the body. They are typically equipped with a manual or electric pump, allowing for zoned control: a softer head area, stronger lumbar support, and moderate leg support, catering to different sleeping positions. Smart models even support adjusting memory modes via a mobile app. This dynamic adaptability effectively relieves pressure, promotes blood circulation, and balances a soft, enveloping feel with firm support.

[0003] Patent application number CN202222709987.7 discloses the field of anti-decubitus air mattress technology, including a sealed shell. Inside the sealed shell are two pressure gauges. The input ends of both sealed shells are connected to a first connecting pipe. The other ends of the two first connecting pipes are connected to three-way valves. One end of each of the two three-way valves is connected to a second connecting pipe. An air pump is connected between opposite sides of the two second connecting pipes. The pressure gauges are connected to the air pump and the strip-shaped air mattress to detect pressure changes inside the air pump and the strip-shaped air mattress.

[0004] However, existing airbag mattress adjustment mechanisms often employ simple multi-path parallel designs in their air circuit systems, lacking time-sequential isolation control of the inflation and deflation processes. This can easily lead to airflow short-circuiting, reducing adjustment efficiency and threatening the safety of the air pump. At the same time, their control systems often rely on a single central processing unit for global calculation and coordination, making it difficult to respond quickly, independently, and accurately to changes in the user's local contours such as shoulders, waist, and hips. This results in adaptive adjustment exhibiting lag, insufficient overall integration, and inadequate precision, failing to achieve efficient, stable, and reliable personalized support.

[0005] In view of this, we propose a laser measurement and adjustment mechanism for adjusting the firmness of an airbag mattress and its application. Summary of the Invention

[0006] The purpose of this invention is to provide a laser measurement and adjustment mechanism and application for adjusting the firmness of an airbag mattress. The matrix airbag group constructs a distributed sensing and execution unit network, enabling the system to accurately acquire the deformation profile of the mattress bottom in real time through multi-point lasers, thereby solving the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A laser measurement and adjustment mechanism for adjusting the firmness of an airbag mattress includes an airbag mattress body, an air supply pipeline disposed inside it, and a matrix of airbags regularly distributed above the air supply pipeline. The matrix airbag assembly includes two sets of matrix-distributed telescopic airbags, a rangefinder located between the two sets of telescopic airbags, an independent air valve located below the rangefinder, and an inflation tube and an exhaust tube connected between the independent air valve and the two sets of telescopic airbags. The independent air valve includes a magnetic ring, a valve core driven by the magnetic ring, a lever integrally formed on the outer wall of one end of the valve core, a spring set at the other end of the valve core, and a valve body sleeved on the outside of the valve core. The valve body has two parallel air inlets and air outlets of different sizes at its end. Two spiral grooves are opened in the round hole on the side of the valve body near the valve core. In this setup, under normal conditions, the air extraction port is connected to the air extraction pipe. When the magnetic ring is energized, it drives the valve core to overcome the spring force, causing the lever to move along the spiral groove, which in turn drives the valve body to rotate, thus connecting the inflation pipe to the inflation port.

[0008] In the technical solution of the present invention, the airbag bed body includes a bottom frame, an inner support plate fixed to the inner wall of the bottom frame by bolts, a flexible frame placed on the top of the inner support plate, and a mattress laid on the top surface of the flexible frame. The bottom surface of the mattress is made of white matte fabric.

[0009] This setup creates a stable base through a bottom frame and internal support plates. The flexible frame and the mattress with a specific bottom material together form a stable, reliable testing and support platform that is compatible with laser ranging, providing a foundation for subsequent precise measurement and adjustment.

[0010] In the technical solution of the present invention, the air supply pipeline includes a diversion box that is snapped and fixed to the inner wall of the rear end of the bottom frame, a plurality of exhaust pipes that are snapped and fixed to the outer wall of the diversion box, and an air supply pipe that is snapped and fixed to the outer wall of the diversion box and parallel to the lower part of the exhaust pipes. The exhaust pipes and the air supply pipes are integrally formed with protruding branch pipes at the corresponding positions of the matrix airbag group.

[0011] In the technical solution of the present invention, the air supply pipeline further includes a sealing box that is snapped and fixed to the end of the diverter box, a piston that slides inside the sealing box, a pen-type electric actuator that is fixed to the inner wall of the bottom frame by screws, and two air pipes that are snapped and fixed to the outer wall of the sealing box in parallel.

[0012] In the technical solution of the present invention, the top surfaces of the upper and lower ends of the sealing box are respectively provided with vents that pass through the inside and outside. The round rod at the end of the pen-type electric actuator extends into the interior of the sealing box and is fixedly engaged with the piston. Two air holes that pass through the left and right and two air holes with an L-shaped longitudinal section are respectively provided at the diagonal ends of the outer wall of the piston. The ends of the upper and lower air pipes are respectively connected to the air inlet and air outlet of the external air pump.

[0013] The above setup intelligently switches between the air supply and exhaust circuits by moving a piston with special air holes and ventilation holes within the sealed box, driven by a pen-type electric actuator. This enables the system to efficiently and reliably switch between the three working modes of inflation, deflation, and isolation.

[0014] In the technical solution of the present invention, the matrix airbag group further includes a base plate and a sealing airbag that is heat-fused to the top of the telescopic airbag. The telescopic airbag is adhered to the top surface of the base plate. When the telescopic airbag is not inflated, the top surface of the sealing airbag abuts against the bottom surface of the mattress. The rangefinder is fixedly connected to the top surface of the base plate by screws.

[0015] In this setup, the base plate serves as an integrated carrier, enabling the rangefinder to accurately measure the deformation of the mattress above. At the same time, the combination of the telescopic airbag and the sealing airbag allows for controllable height adjustment based on the lowest possible base support.

[0016] In the technical solution of the present invention, the independent air valve further includes a fixing box that is fixedly connected to the bottom surface of the base plate by screws and a sleeve that is snapped and fixed inside the fixing box. The outer wall of the sleeve has a protruding tube integrally formed thereon that is snapped and fixed to the branch pipes of the exhaust pipe and the air supply pipe. The two ends of the magnetic ring are fixedly connected to the outer wall of the fixing box by bolts.

[0017] In the technical solution of the present invention, the valve core is welded and fixed to the spring, the other end of the spring abuts against the inner wall of the fixed box, the elastic force provided by the spring pushes the valve core to move to the front end, the valve body is rotatably connected to the inside of the sleeve, and the spiral groove of the end hole is adapted to the size of the lever.

[0018] In the technical solution of the present invention, the top end of the inflation tube is snapped and fixed to the outside of the air port on the outer wall of the telescopic airbag, the bottom end of the inflation tube is snapped and fixed to the right side of the sleeve and the protrusion at the position corresponding to the inflation hole, the top end of the suction tube extends from the bottom surface of the telescopic airbag to the inside of the telescopic airbag, and the bottom end of the suction tube is snapped and fixed to the right side of the sleeve and the protrusion at the position corresponding to the suction hole.

[0019] The above setup utilizes a mechanical linkage consisting of a magnetic coil, valve core, valve body with spiral groove, and spring to convert the on / off signal of the electromagnet into precise rotation and switching of the air passage. The control logic is simple and reliable, ensuring the precise execution of inflation and deflation of the single-point telescopic airbag.

[0020] On the other hand, the present invention also provides an application of a laser measurement and adjustment mechanism for adjusting the firmness of an airbag mattress, which is the application of the aforementioned laser measurement and adjustment mechanism for adjusting the firmness of an airbag mattress in a smart mattress integrated into a smart bedroom ecosystem.

[0021] Compared with the prior art, the beneficial effects of the present invention are: 1. The laser measurement and adjustment mechanism for adjusting the firmness of this airbag mattress constructs a distributed sensing and execution unit network through a matrix airbag group. This allows the system to accurately acquire the deformation profile of the mattress bottom in real time through multi-point lasers, and directly and independently drive the expansion airbags in the corresponding area of ​​the matrix airbag group to inflate. Through a point-to-point local closed-loop control mode, it abandons the global coordination in traditional solutions, and realizes rapid and precise adjustment of the support height for various parts of the user's shoulders, waist, hips, etc., improving the real-time performance and accuracy of adaptive support.

[0022] 2. The laser measurement and adjustment mechanism for adjusting the firmness of this airbag mattress, through an independent air valve, allows a single electromagnetic action to complete the rotational switching of the air passage. It is responsive and mechanically self-locking, and works in conjunction with a piston driven by a pen-type electric actuator to achieve precise control of the main air passage's inflation, deflation, and closure states. The system achieves complete isolation and sequential operation of the inflation and deflation stages in the air passage, which not only avoids the risk of airflow short circuits and protects the air pump, but also ensures that the entire pneumatic process is efficient, orderly, and stable, whether for personalized adjustments or bed reset, greatly improving the system's reliability and service life. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the overall structure of the present invention; Figure 3 This is a cross-sectional schematic diagram of the airbag bed body in this invention; Figure 4 This is a schematic diagram of the gas supply pipeline in this invention; Figure 5 For the present invention Figure 4 An enlarged schematic diagram of part A in the middle; Figure 6 This is a partial structural diagram of the gas supply pipeline in this invention; Figure 7 This is a schematic diagram of the structure of the sealing box in this invention; Figure 8 This is one of the structural schematic diagrams of the matrix airbag assembly in this invention; Figure 9 This is the second schematic diagram of the matrix airbag assembly in this invention; Figure 10 This is one of the partial structural schematic diagrams of the matrix airbag assembly in this invention; Figure 11 This is a second schematic diagram of a partial structure of the matrix airbag assembly in this invention; Figure 12 This is a cross-sectional schematic diagram of the independent air valve in this invention; Figure 13This is a structural breakdown diagram of the independent air valve in this invention; Figure 14 This is a cross-sectional view of the valve body in this invention; Explanation of reference numerals in the attached figures: 100. Airbag bed frame; 110. Base frame; 120. Internal support board; 130. Flexible frame; 140. Mattress; 200. Air supply line; 210. Diverter box; 211. Partition plate; 220. Exhaust pipe; 230. Air supply line; 240. Sealing box; 241. Vent; 250. Pen-type electric actuator; 260. Piston; 261. Air hole; 262. Vent hole; 270. Vent pipe; 300. Matrix airbag assembly; 310. Base plate; 320. Telescopic airbag; 330. Sealing airbag; 340. Rangefinder; 350. Independent air valve; 351. Fixing box; 352. Sleeve; 353. Magnetic ring; 354. Valve core; 355. Lever; 356. Spring; 357. Valve body; 3570. Inflation port; 3571. Suction port; 3572. Spiral groove; 360. Inflation tube; 370. Suction tube. Detailed Implementation

[0024] The technical solutions of this invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0025] Please see Figures 1-3 As shown, this embodiment provides the following technical solution: A laser measurement and adjustment mechanism for adjusting the firmness of an airbag mattress, used in a smart mattress integrated into a smart bedroom ecosystem, includes an airbag mattress body 100, an air supply pipe 200 disposed inside it, and a matrix airbag group 300 regularly distributed above the air supply pipe 200. Specifically, the airbag bed 100 includes a base frame 110, an inner support plate 120 fixed to the inner wall of the base frame 110 by bolts, a flexible frame 130 placed on top of the inner support plate 120, and a mattress 140 laid on the top surface of the flexible frame 130. The bottom surface of the mattress 140 is made of white matte fabric.

[0026] Furthermore, the base frame 110 is used to ensure the overall structural strength of the airbag bed 100, the inner support plate 120 is used to provide a placement area for the flexible frame 130, and the mattress 140 is used to ensure the comfort of the airbag bed 100. This setup, through the base frame 110 and the inner support plate 120, constructs a stable base. The flexible frame 130 and the mattress 140 with a specific bottom material together constitute a stable, reliable testing and bearing platform that is compatible with laser ranging, providing a foundation for subsequent precise measurement and adjustment.

[0027] Please see Figures 4-7 As shown, in this embodiment, the air supply pipeline 200 includes a diversion box 210 snapped and fixed to the inner wall of the rear end of the bottom frame 110, a plurality of exhaust pipes 220 snapped and fixed to the outer wall of the diversion box 210, and an air supply pipe 230 snapped and fixed to the outer wall of the diversion box 210 and parallel to the lower part of the exhaust pipes 220. The exhaust pipes 220 and the air supply pipes 230 are integrally formed with protruding branch pipes at corresponding positions of the matrix airbag assembly 300.

[0028] Specifically, the gas supply line 200 also includes a sealing box 240 that is snapped and fixed to the end of the distributor box 210, a piston 260 that slides inside the sealing box 240, a pen-type electric actuator 250 that is fixed to the inner wall of the bottom frame 110 by screws, and two air pipes 270 that are snapped and fixed to the outer wall of the sealing box 240 in parallel.

[0029] Furthermore, the top surfaces of the upper and lower ends of the sealing box 240 are respectively provided with vents 241 that are open to the inside and outside. The round rod at the end of the pen-type electric actuator 250 extends into the interior of the sealing box 240 and is engaged and fixed with the piston 260. Two air holes 261 that are open to the left and right and two air holes 262 with an L-shaped longitudinal section are respectively provided at the diagonal ends of the outer wall of the piston 260. The ends of the upper and lower air pipes 270 are respectively connected to the air inlet and air outlet of the external air pump.

[0030] Furthermore, the partition 211 inside the diverter box 210 divides the interior of the diverter box 210 into an air supply chamber and an exhaust chamber. The pen-type electric actuator 250 drives the piston 260 to move to a designated position inside the sealing box 240, so that the lower air hole 261 on the piston 260 connects the lower vent pipe 270 with the air supply chamber of the diverter box 210, and seals the upper vent pipe 270 with the exhaust chamber of the diverter box 210. At the same time, the upper vent pipe 270 can connect to the vent 241 on the top surface of the sealing box 240 through the upper vent hole 262. In actual use, small holes can be opened on the front and rear sides of the sealing box 240 to ensure the stability of the piston 260 moving inside the sealing box 240.

[0031] The above setup intelligently switches between the air supply and exhaust circuits by moving the piston 260, which has special air holes 261 and vent holes 262, within the sealed box 240 driven by the pen-type electric actuator 250. This enables the system to switch efficiently and reliably between the three working modes of inflation, deflation, and isolation.

[0032] Please see Figures 8-10 As shown, in this embodiment, the matrix airbag group 300 includes two sets of matrix-distributed telescopic airbags 320, a rangefinder 340 disposed between the two sets of telescopic airbags 320, an independent air valve 350 disposed below the rangefinder 340, and an inflation tube 360 ​​and an air extraction tube 370 connected between the independent air valve 350 and the two sets of telescopic airbags 320.

[0033] Specifically, the matrix airbag assembly 300 also includes a base plate 310 and a sealing airbag 330 that is heat-fused to the top of the telescopic airbag 320. The telescopic airbag 320 is adhered to the top surface of the base plate 310. When the telescopic airbag 320 is not inflated, the top surface of the sealing airbag 330 abuts against the bottom surface of the mattress 140. The rangefinder 340 is fixedly connected to the top surface of the base plate 310 by screws.

[0034] Furthermore, the base plate 310 is used to provide a fixed platform for the telescopic airbag 320, the rangefinder 340, and the independent air valve 350. The telescopic airbag 320 is used to adjust the height of the sealing airbag 330. The sealing airbag 330 is pre-charged with a certain air pressure at the factory, so that it can still independently provide basic support for the mattress 140 when it is not lifted by the telescopic airbag 320 below, thereby ensuring that the user can obtain the most basic and even support effect in any state.

[0035] The rangefinder 340 emits a laser vertically upward and receives the signal reflected back from the white matte bottom surface of the mattress 140, thereby accurately measuring the real-time distance from the bottom of the mattress 140 to the substrate 310 at each measurement point.

[0036] In the above configuration, the base plate 310 serves as an integrated carrier, enabling the rangefinder 340 to accurately measure the deformation of the mattress 140 above. At the same time, the combination of the telescopic airbag 320 and the sealing airbag 330 achieves controllable height adjustment based on the lowest basic support.

[0037] Please see Figures 11-14As shown, in this embodiment, the independent air valve 350 includes a magnetic ring 353, a valve core 354 driven by the magnetic ring 353, a lever 355 integrally formed on the outer wall of one end of the valve core 354, a spring 356 disposed at the other end of the valve core 354, and a valve body 357 sleeved on the outside of the valve core 354. Two parallel air inlets 3570 and an air extraction inlet 3571 of different sizes are provided at the end of the valve body 357. Two spiral grooves 3572 are provided in the circular hole on the side of the valve body 357 near the valve core 354. In its natural state, the air extraction inlet 3571 is connected to the air extraction pipe 370. When the magnetic ring 353 is energized, it drives the valve core 354 to overcome the elastic force of the spring 356, causing the lever 355 to move along the spiral grooves 3572, thus rotating the valve body 357 and connecting the air inlet 360 to the air inlet 3570.

[0038] Specifically, the independent air valve 350 also includes a fixing box 351 fixedly connected to the bottom surface of the base plate 310 by screws, and a sleeve 352 snapped and fixed inside the fixing box 351. The outer wall of the sleeve 352 has an integrally formed protrusion that snaps and fixes to the branch pipes of the exhaust pipe 220 and the air supply pipe 230. The two ends of the magnetic ring 353 are fixedly connected to the outer wall of the fixing box 351 by bolts.

[0039] Furthermore, the valve core 354 is welded and fixed to the spring 356, and the other end of the spring 356 abuts against the inner wall of the fixed box 351. The elastic force provided by the spring 356 pushes the valve core 354 to move towards the front end. The valve body 357 is rotatably connected to the inside of the sleeve 352, and the spiral groove 3572 of the end round hole is adapted to the size of the lever 355.

[0040] Furthermore, the top end of the inflation tube 360 ​​is snapped and fixed to the outside of the air port on the outer wall of the telescopic airbag 320, and the bottom end of the inflation tube 360 ​​is snapped and fixed to the right side of the sleeve 352 and the protrusion at the corresponding position of the inflation hole 3570. The top end of the suction tube 370 extends from the bottom surface of the telescopic airbag 320 into the interior of the telescopic airbag 320, and the bottom end of the suction tube 370 is snapped and fixed to the right side of the sleeve 352 and the protrusion at the corresponding position of the suction hole 3571.

[0041] Furthermore, for the matrix airbag assembly 300 that requires inflation and pressurization, the control system energizes the magnetic coil 353 in its corresponding independent air valve 350, causing the valve core 354 to overcome the spring force of the spring 356 and drive the lever 355 to move along the spiral groove 3572, thereby rotating the valve body 357 and connecting the inflation tube 360 ​​with the inflation port 3570. This allows the inflation tube 360 ​​to connect with the air supply chamber of the distribution box 210 through the air supply tube 230. When the magnetic coil 353 of the matrix airbag assembly 300 is de-energized during inflation, the spring 356 pushes the valve core 354 forward, switching the valve body 357 to the state where the suction port 3571 is connected to the suction tube 370.

[0042] The above setup utilizes the mechanical linkage of the magnetic coil 353, valve core 354, valve body 357 with spiral groove 3572, and spring 356 to convert the on / off signal of the electromagnet into precise rotation and switching of the air passage. The control logic is simple and reliable, ensuring the precise execution of inflation and deflation of the single-point telescopic airbag 320.

[0043] Finally, it should be noted that the pen-type electric actuator 250, rangefinder 340, and magnetic coil 353 involved in this invention are all general standard parts or components known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle part of this device, the pen-type electric actuator 250, rangefinder 340, and magnetic coil 353 are connected to an external power source through wires. The specific connection method should refer to the working principle in this invention. The electrical connections between each electrical component are completed in the order of operation. The detailed connection methods are all technologies known in the art.

[0044] When the laser measurement and adjustment mechanism for adjusting the firmness of the airbag mattress of the present invention is used, firstly, sleep state recognition and initial contour measurement are performed. When the user lies on the mattress 140 of the airbag mattress body 100 and remains still for more than a preset time threshold, the control system built into the airbag mattress body 100 recognizes that the user has entered a stable sleep preparation state. Subsequently, the system activates the rangefinders 340 in all matrix airbag groups 300. Each rangefinder 340 emits laser vertically upward and receives the signal reflected back from the white matte bottom surface of the mattress 140, thereby accurately measuring the real-time distance from the bottom of the mattress 140 to the substrate 310 at each measurement point, forming a complete mattress deformation contour data array. Next, the system performs weight and sleeping posture analysis and calculates target pressure. The control system receives the mattress deformation contour data array and analyzes it through the built-in algorithm. First, based on the overall deformation depth and distribution model, it estimates the user's total weight and center of gravity position. Second, by comparing the morphological characteristics of the relative concavity of the shoulders, waist, and hips, it identifies the user's current sleeping posture. Based on the identified weight and sleeping posture information, the system calls the stored ergonomic ideal support curve model to calculate the target pressure value that the telescopic airbags 320 under each matrix airbag group 300 need to achieve in order to achieve the best support effect. Subsequently, based on the calculated adjustment requirements, the control system first activates the pen-type electric actuator 250 in the air supply line 200. The pen-type electric actuator 250 drives the piston 260 to move to the designated position in the sealing box 240, so that the lower air hole 261 on the piston 260 connects the lower air pipe 270 with the air supply chamber of the diversion box 210, and at the same time seals the upper air pipe 270 with the exhaust chamber of the diversion box 210, the upper air pipe 270 can connect to the air port 241 on the top surface of the sealing box 240 through the upper air hole 262. The system marks the matrix airbag group 300 that needs to be inflated and pressurized based on the comparison between the preset initial value and the target pressure value of each telescopic airbag 320. Subsequently, for the matrix airbag assembly 300 that needs to be inflated and pressurized, the control system energizes the magnetic coil 353 in the independent air valve 350 corresponding to the matrix airbag assembly 300, driving the valve core 354 to overcome the elastic force of the spring 356, driving the lever 355 to move along the spiral groove 3572, driving the valve body 357 to rotate, so that the inflation tube 360 ​​is connected to the inflation hole 3570, thereby connecting the inflation tube 360 ​​to the air supply chamber of the distribution box 210 through the air supply tube 230. Next, the external air pump is activated to allow external air to enter the telescopic airbag 320, causing the telescopic airbag 320 to expand and lift the sealed airbag 330 and mattress 140 above it, reducing the indentation of the mattress 140 in that area, thereby completing the support for the user's lower back. Subsequently, when the user leaves the mattress, and the distance values ​​detected by all rangefinders 340 return to near the initial unloaded state and remain there for a period of time, the control system determines that the user has gotten up. The system will first control the pen-type electric actuator 250 to drive the piston 260 to reset, and de-energize the magnetic coils 353 of all the matrix airbag groups 300 that were in the inflated state during the previous adjustment, and switch the valve body 357 to the state where the air extraction port 3571 is connected to the air extraction pipe 370. The pen-type electric actuator 250 drives the piston 260 to reset, so that the lower air hole 261 on the piston 260 seals the lower air pipe 270 and the air supply chamber of the diversion box 210, and seals and connects the upper air pipe 270 and the exhaust chamber of the diversion box 210. At the same time, the lower air pipe 270 connects to the air port 241 on the bottom surface of the sealing box 240 through the lower air hole 262. Finally, the air pump is restarted. The gas inside the telescopic airbag 320 flows from the suction pipe 370 through the suction port 3571, and then enters the exhaust chamber of the diversion box 210 through the exhaust pipe 220. Finally, it is drawn out by the air pump from the vent pipe 270 above the outer wall of the sealing box 240, so that the telescopic airbag 320 returns to its initial flat state before inflation, ready for the next use.

[0045] The foregoing description of specific exemplary embodiments of the invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the invention, as well as various different choices and variations. The scope of the invention is intended to be defined by the specification and its equivalents.

Claims

1. A laser measurement adjustment mechanism for air bed mattress firmness adjustment, characterized by: The air bag bed body, the air supply pipeline arranged in the air bag bed body, and a plurality of matrix air bags regularly arranged above the air supply pipeline; The matrix air bag group comprises two groups of matrix air bags, a range finder arranged between the two groups of air bags, an independent air valve arranged below the range finder, and a gas filling pipe and a gas exhaust pipe connected between the independent air valve and the two groups of air bags. The independent air valve comprises a magnetic ring, a valve core driven by the magnetic ring, a lever integrally formed on one end of the valve core, a spring arranged on the other end of the valve core, and a valve body sleeved on the outside of the valve core. In a natural state, the gas exhaust hole is connected with the gas exhaust pipe, and the magnetic ring is energized to drive the valve core to overcome the spring force and drive the lever to move along the spiral groove, thereby rotating the valve body to connect the gas filling pipe with the gas filling hole.

2. The laser measured adjustment mechanism for softness adjustment of an air bag mattress according to claim 1, wherein: The air bag bed body comprises a bottom frame, an inner support plate fixedly connected to the inner wall of the bottom frame by bolts, a flexible frame arranged on the top of the inner support plate, and a mattress arranged on the top surface of the flexible frame.

3. The laser measured adjustment mechanism for softness adjustment of an air bag mattress according to claim 2, wherein: The air supply pipeline comprises a shunt box fixedly connected to the inner wall of the rear end of the bottom frame, a plurality of exhaust pipes fixedly connected to the outer wall of the shunt box, and a gas supply pipe fixedly connected to the outer wall of the shunt box and parallel to the exhaust pipes below.

4. The laser measured adjustment mechanism for softness adjustment of an air bag mattress according to claim 3, wherein: The air supply pipeline further comprises a sealing box fixedly connected to the end of the shunt box, a piston sliding in the sealing box, a pen-type electric push rod fixedly connected to the inner wall of the bottom frame by screws, and two parallel upper and lower air pipes fixedly connected to the outer wall of the sealing box.

5. The laser measured adjustment mechanism for softness adjustment of an air bag mattress according to claim 4, wherein: The sealing box is provided with air inlets on the top surfaces of the upper and lower ends, the circular rod at the end of the pen-type electric push rod extends into the sealing box and is fixedly connected with the piston, and the piston is provided with two left and right air holes and two L-shaped air holes in the oblique corners of the front and rear ends of the outer wall.

6. The laser measured adjustment mechanism for softness adjustment of an air bag mattress according to claim 5, wherein: The matrix air bag group further comprises a base plate and a sealing air bag connected to the top of the air bag by hot melting, the air bag is adhered to the top surface of the base plate, and the top surface of the sealing air bag is in contact with the bottom surface of the mattress when the air bag is not inflated.

7. The laser measured adjustment mechanism for softness adjustment of an air bag mattress according to claim 6, wherein: The independent air valve further comprises a fixing box fixedly connected to the bottom surface of the base plate by screws and a sleeve fixedly connected to the inside of the fixing box, the outer wall of the sleeve is integrally provided with a convex pipe fixedly connected with the branch pipes of the exhaust pipes and the gas supply pipe, and the two ends of the magnetic ring are fixedly connected to the outer wall of the fixing box by bolts.

8. The laser measured adjustment mechanism for softness adjustment of an air bag mattress according to claim 7, wherein: The valve core and the spring are fixedly connected by welding, the other end of the spring is in contact with the inner wall of the fixing box, the spring provides a spring force to push the valve core to move to the front end, and the valve body is rotationally connected to the inside of the sleeve and the spiral groove of the end circular hole is matched with the size of the lever.

9. The laser measured adjustment mechanism for softness adjustment of an air bag mattress according to claim 8, wherein: The top end of the inflation pipe is clamped and fixed outside the air port of the outer wall of the telescopic air bag, the bottom end of the inflation pipe is clamped and fixed with the right side of the sleeve pipe and the convex pipe at the corresponding position of the inflation hole, the top end of the exhaust pipe extends to the inside of the telescopic air bag from the bottom surface of the telescopic air bag, and the bottom end of the exhaust pipe is clamped and fixed with the right side of the sleeve pipe and the convex pipe at the corresponding position of the exhaust hole.

10. Use of the laser measurement adjustment mechanism for softness adjustment of an air bag mattress according to claim 9, characterized in that: Application in a smart mattress integrated in a smart bedroom ecosystem.

Citation Information

Patent Citations

  • Device for measuring anti-bedsore air cushion by using pressure gauge method

    CN219474928U