A smart anti-loosening chest breathing effort detection device with a magnetic quick-change probe

Abstract

This invention belongs to the field of medical testing equipment technology, specifically an intelligent anti-loosening chest breathing effort testing device with a magnetic quick-change probe. The proposed solution includes: a magnetic suction mechanism, one end of which is fitted with a sleeve tube. This mechanism enables quick magnetic attachment and disassembly of the probe to the device body, and forms an intelligent anti-loosening seal through the magnetic attraction and elastic structure, preventing the probe from falling off and leakage of the patient's exhaled air during testing; and a testing mechanism, with both ends fixedly mounted on the other ends of the two magnetic suction mechanisms. This invention utilizes a Tesla valve structure composed of a right side plate, a left side plate, and a mounting plate to create an asymmetric resistance airflow channel. During inhalation, the airflow passes through quickly; during exhalation, the airflow is guided by a triangular diverter and flows along the surfaces of the right and left side plates, creating a counter-impact. This counter-impact significantly increases exhalation resistance, ensuring the required airflow power for testing while greatly reducing the respiratory burden on the tester.

Description

Technical Field

[0001] This invention relates to the field of medical testing equipment technology, and in particular to an intelligent anti-loosening chest breathing effort testing device with a magnetic quick-change probe. Background Technology

[0002] In clinical medical testing, chest respiratory effort is an important indicator for assessing human respiratory function, respiratory muscle strength and the degree of respiratory disorder. Its test results are of key significance for the diagnosis of respiratory diseases, the formulation of treatment plans and the evaluation of rehabilitation effects. Existing chest respiratory effort testing devices suffer from several technical shortcomings: First, the probe and device body are mostly connected by threads or snap-fit ​​mechanisms, requiring tools for assembly and disassembly, making the process cumbersome and time-consuming, and failing to meet the needs of rapid and batch clinical testing. Repeated disassembly and assembly also easily leads to wear and tear on the connection structure, reducing connection stability. Second, the sealing structure of the connection points is simply designed, making it prone to probe detachment or leakage of exhaled air during testing due to airflow impact or device vibration, resulting in airflow loss and distorted data. Third, most testing institutions use a single pressure sensing method, which has low sensitivity to weak airflow, making it unable to accurately identify subtle changes in respiratory effort. Furthermore, the detection signal is easily affected by external interference, resulting in poor quantification accuracy. Fourth, the airflow channel design is unreasonable, with no difference in inspiratory and expiratory resistance, easily increasing the respiratory burden on the tester. Additionally, poor airflow guidance can lead to airflow blind spots. Therefore, there is an urgent need for an intelligent, anti-loosening chest respiratory effort testing device with a magnetic quick-change probe. Summary of the Invention

[0003] Based on the technical problems in the background art, the present invention proposes an intelligent anti-loosening chest breathing effort detection device with a magnetic quick-change probe.

[0004] This invention proposes an intelligent anti-loosening chest breathing effort detection device with a magnetic quick-change probe, comprising: a magnetic suction mechanism, one end of which is fitted with a sleeve tube, enabling quick magnetic attachment and disassembly of the probe to the device body, and forming an intelligent anti-loosening seal through magnetic attraction and elastic structure to prevent the probe from falling off and leakage of the patient's exhaled air during the detection process; a detection mechanism, with both ends fixedly mounted to the other ends of the two magnetic suction mechanisms; a breathing nozzle, nested in one end of the sleeve tube for flexible contact with the patient's mouth and nose; the detection mechanism includes: mounting plates, the top and bottom of which are fixedly mounted to the other ends of the two magnetic suction mechanisms, serving as the main support frame of the detection mechanism; and multiple long bolts. One end of a long bolt moves through the two mounting plates, enabling a detachable connection between them. A threaded ring, with its central thread fitted onto the end of the long bolt, engages with it to lock the mounting plates in place. A right side plate, a left side plate, and two rubber strips are fixedly mounted on the sides of the two mounting plates, forming a sealed airflow channel. The rubber strips enhance the channel's sealing performance. Multiple diverter blocks are fixedly positioned in the gap between the two mounting plates to guide and divert airflow, creating opposing impacts and increasing airflow resistance. Multiple intermediate blocks are integrally formed and fixedly mounted on the sides of the multiple diverter blocks. Multiple fixing rings are also fixedly mounted on the sides of the two mounting plates.

[0005] Preferably, the detection mechanism further includes: a circular ring pad, which is movably sleeved on one end of a long bolt; a small bearing, which is sleeved in the middle of a fixed ring; a rotating rod, which is inserted through the middle of the small bearing; air blowing vanes, which are distributed and fixedly arranged around the outer surface of the rotating rod to receive the impact force of the airflow and drive the rotating rod to rotate. The rotation speed is positively correlated with the airflow velocity and pressure, reflecting the degree of breathing effort; and a sealing plate, which is fixed to the end of the fixed ring.

[0006] Preferably, the detection mechanism further includes: a corner plate, which is integrally formed and fixedly disposed on the edge of the air blowing plate to increase the effective contact area between the air blowing plate and the airflow, so that the air blowing plate can respond to even weak airflow; a light-absorbing plate, which is fixedly disposed on the surface of the sealing plate; a notched plate, which is fixedly sleeved on the end of the rotating rod and rotates synchronously with the rotating rod, serving as a dynamic detection target for the laser rangefinder, and its notched structure causes the laser ranging signal to change periodically, making it easy to convert the rotation amount into an electrical signal; a support frame, with multiple support frames respectively fixedly disposed on the surfaces of the two mounting plates; and a laser rangefinder, which is fixedly disposed through the middle of the support frame to detect the distance change of the notched plate during rotation in real time and convert the mechanical rotation amount into an electrical signal.

[0007] Preferably, the magnetic attraction mechanism includes: an open frame, two open frames fixedly disposed at the top and bottom of the mounting plate respectively; vertical tubes, one end of two vertical tubes embedded in the side of the open frame; a docking cylinder, two docking cylinders integrally formed and fixedly sleeved on the other end of the two vertical tubes; a rubber sleeve, the rubber sleeve being glued to the inner wall of the docking cylinder; a magnet ring, the magnet ring being embedded in the rubber sleeve; a movable sleeve, the movable sleeve being movably sleeved inside the docking cylinder; and a connecting pipe, one end of the connecting pipe being fixedly disposed through the middle of the movable sleeve.

[0008] Preferably, the magnetic attraction mechanism further includes: a sliding cylinder, which is fixedly sleeved on the outer surface of the connecting tube; two large springs, one end of which is embedded in the middle of the sliding cylinder; a magnet ring, the surface of which is glued to the other end of the two large springs; adhesive rods, one end of which is glued to the surface of the magnet ring; a pressing ring, which is fixedly sleeved to the other end of the adhesive rods; an inclined flange, two inclined flanges, which are integrally formed on the inner and outer rings of the rubber sleeve; and two semi-circular grooves, which are respectively opened on the inner and outer sides of the rubber sleeve.

[0009] Preferably, the end of the laser rangefinder is electrically connected to a connecting wire, one end of which is embedded in a protective shell. A display screen is embedded in the front of the protective shell, and a circuit board is fixedly installed on the inner wall of the protective shell. Multiple laser rangefinders and the display screen are electrically connected to the circuit board via the connecting wire.

[0010] Preferably, the right side plate, the left side plate, and the two mounting plates constitute a Tesla valve, which forms an air flow channel inside. The air flow channel is connected to the interior of the two open frames. Multiple diverter blocks are evenly distributed at equal intervals in the air flow channel, and the multiple diverter blocks guide the air to form opposing impacts inside the air flow channel.

[0011] Preferably, the multiple air blowing blades are arranged in a group around the outer surface of the rotating rod, the middle block is located between the two groups of air blowing blades, the diverting block is triangular in shape, and the axial direction of the rotating rod is biased to one side of the center of the middle block, so that the distance between the multiple air blowing blades and the surface of the left side plate is different.

[0012] Preferably, the rotating rod is movably inserted through the middle of the sealing plate, and two fixed rings are movably fitted at both ends of the rotating rod. The rotating rod is rotatably inserted through the middle of the two fixed rings via a small bearing, and the rotating rod is movably inserted through the middle block.

[0013] Preferably, the adhesive rod is movably inserted through the middle of one end of the sliding cylinder, and two large springs are movably sleeved in the gap between the connecting tube and the sliding cylinder. The magnetic ring and the magnetic collar attract each other, causing the movable sleeve to be tightly attached to the rubber sleeve, so that the inner wall of the rubber sleeve and the movable sleeve is sealed. The outer diameter of the movable sleeve is smaller than the inner diameter of the connecting cylinder.

[0014] The beneficial effects of this invention are as follows: The magnetic attraction mechanism enables tool-free quick assembly and disassembly of the probe and the main body of the device through the attraction between opposite poles of the magnetic ring and the magnetic coil. The operation is simple and time-saving, meeting the needs of rapid clinical testing. At the same time, the magnetic attraction force combined with the elastic restoring force of the large spring forms a double intelligent anti-loosening structure, which effectively resists the influence of external forces such as airflow impact and equipment vibration, preventing the probe from falling off. Furthermore, the tight fit between the movable sleeve and the rubber sleeve achieves a reliable seal, completely eliminating the leakage of the test air exhaled by the patient and ensuring the airtightness of the airflow transmission. The right side plate, left side plate, and mounting plate together form a Tesla valve structure, creating an asymmetric resistance airflow channel. During inhalation, the airflow can pass through quickly, while during exhalation, the airflow is guided by the triangular diverter block and flows along the surfaces of the right and left side plates, forming a counter-impact. This counter-impact greatly increases the exhalation resistance, ensuring the airflow power required for the test while significantly reducing the respiratory burden on the tester and improving test comfort. The corner plates at the edge of the air blower increase the effective contact area with the airflow, enabling the detection mechanism to produce a significant rotational response even to weak respiratory airflow. The eccentric setting of the rotating rod creates a gradient distance between the air blower and the side plate, eliminating airflow blind spots and ensuring that the air blower can accurately respond to airflows of different directions and velocities, greatly improving detection sensitivity. At the same time, the greater the pressure of the patient's exhaled air, the different rotation speeds of the multiple sets of air blowers in the airflow channel. By judging the decreasing curve of the patient's exhaled air flow through the multiple sets of air blower rotation speeds, the patient's exhaled air pressure can be calculated by using the rotation data of multiple sets of air blower rotations, which has the advantage of accurate detection. The rotating rod is driven by airflow, and the laser rangefinder detects the rotational displacement of the notch plate in real time. The mechanical rotation is converted into an electrical signal. After signal acquisition, noise reduction and calculation by the circuit board, it is finally converted into intuitive breathing effort detection data and displayed on the screen in real time. The entire detection process is non-contact and without mechanical wear, with high detection accuracy and stable electrical signal transmission, effectively avoiding external interference and realizing accurate quantification and digitization of breathing effort. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an intelligent anti-loosening chest breathing effort detection device with a magnetic quick-change probe proposed in this invention. Figure 2 This is a schematic cross-sectional view of the detection mechanism of an intelligent anti-loosening chest breathing effort detection device with a magnetic quick-change probe proposed in this invention. Figure 1 ; Figure 3 This is a schematic cross-sectional view of the detection mechanism of an intelligent anti-loosening chest breathing effort detection device with a magnetic quick-change probe proposed in this invention. Figure 2 ; Figure 4This invention presents a schematic diagram of the detection mechanism of an intelligent anti-loosening chest breathing effort detection device with a magnetic quick-change probe. Figure 1 ; Figure 5 This invention presents a schematic diagram of the detection mechanism of an intelligent anti-loosening chest breathing effort detection device with a magnetic quick-change probe. Figure 2 ; Figure 6 This invention presents a disassembly diagram of the detection mechanism of an intelligent anti-loosening chest breathing effort detection device with a magnetic quick-change probe. Figure 1 ; Figure 7 This invention presents a disassembly diagram of the detection mechanism of an intelligent anti-loosening chest breathing effort detection device with a magnetic quick-change probe. Figure 2 ; Figure 8 This is a disassembly diagram of the magnetic attraction mechanism of an intelligent anti-loosening chest breathing effort detection device with a magnetic quick-change probe proposed in this invention. Figure 9 This is a schematic diagram of the rubber sleeve structure of an intelligent anti-loosening chest breathing effort detection device with a magnetic quick-change probe proposed in this invention.

[0016] In the diagram: Mounting plate 1, long bolt 11, threaded ring 12, circular washer 13, fixing ring 14, right side plate 15, left side plate 16, rubber strip 17, diverter block 18, middle block 19, small bearing 110, rotating rod 111, air blower 112, corner plate 113, sealing plate 114, light-absorbing plate 115, notch plate 116, support frame 117, laser rangefinder 118, opening frame 2, vertical tube 21, docking cylinder 22, rubber sleeve 23, magnetic ring 24, movable sleeve 25, docking pipe 26, sliding cylinder 27, large spring 28, magnetic ring 29, adhesive rod 210, pressing ring 211, inclined edge 212, semi-circular groove 213, sleeve tube 3, breather nozzle 4, connecting line 5, protective shell 6, display screen 7. Detailed Implementation

[0017] Reference Figures 1 to 9 A smart anti-loosening chest breathing effort detection device with a magnetic quick-change probe includes: a magnetic attraction mechanism, one end of which is fitted with a sleeve tube 3. The core of this magnetic attraction mechanism is to realize the tool-free quick disassembly and assembly of the probe and the main body of the device by magnetic attraction. At the same time, the attraction of opposite magnetic poles, combined with the elastic reset structure, forms a double intelligent anti-loosening seal, highlighting the convenience of magnetic quick-change and the reliability of anti-loosening seal. It effectively resists the influence of external forces such as airflow impact and equipment vibration during the detection process, completely prevents the probe from falling off and eliminates the leakage of the detection air exhaled by the patient, and ensures the airtightness of airflow transmission and the stability of the connection structure.

[0018] In this invention, the detection mechanism has two ends fixedly mounted on the other ends of two magnetic suction mechanisms. The Tesla valve fluid structure creates directional resistance to the detection gas exhaled by the patient, while providing minimal resistance to the inhaled respiratory airflow, allowing for unobstructed and rapid passage, reducing the respiratory burden on the tester, and facilitating breathing during use. Through airflow-driven mechanical rotation, the kinetic energy of the airflow is converted into mechanical rotation, and then combined with laser ranging sensing technology to achieve precise conversion of mechanical quantity into electrical signal, ultimately achieving highly sensitive, precise quantification, and digital detection of chest breathing effort.

[0019] In this invention, the breathing nozzle 4 is nested at one end of the sleeve tube 3 and is used to flexibly fit and connect with the mouth and nose of the tester. This enhances the airtightness of the directional airflow transmission and the ergonomic comfort of wearing it, realizing the unidirectional directional introduction and export of breathing airflow, avoiding airflow overflow from affecting the detection accuracy, and reducing the pressure on the mouth and nose of the tester during the detection process.

[0020] In this invention, the testing mechanism includes: mounting plates 1, with the top and bottom of the two mounting plates 1 respectively fixedly disposed at the other end of the two magnetic attraction mechanisms, serving as the main rigid support frame of the testing mechanism, highlighting the stability of the structural support and the accuracy of assembly positioning, providing a solid and unified installation foundation and positioning benchmark for each functional component, ensuring the deformation resistance of the overall structure of the testing mechanism and the assembly accuracy of the components, and avoiding testing errors caused by frame deformation.

[0021] In this invention, one end of a plurality of long bolts 11 is movably inserted through two mounting plates 1, thereby achieving a detachable fastening connection between the two mounting plates 1. This highlights the convenience of disassembly and maintenance as well as the robustness of the connection, facilitating the rapid disassembly of the testing mechanism, maintenance and replacement of internal components, and subsequent calibration of testing accuracy, while ensuring that the frame structure remains stable during the testing process.

[0022] In this invention, the threaded ring 12 has its central thread fitted onto the end of the long bolt 11. It works in conjunction with the long bolt 11 to achieve precise locking of the mounting plate 1, providing anti-loosening and positioning accuracy. This prevents the threads from loosening due to equipment vibration during the testing process, avoids deformation of the airflow channel and displacement of the testing components, and ensures the continuity and stability of the testing accuracy.

[0023] In this invention, the right side plate 15, the left side plate 16, and the two rubber strips 17 are respectively fixedly disposed on the sides of the two mounting plates 1, forming a sealed integrated airflow channel with the mounting plates 1. This highlights the airtightness of the airflow channel and the integrity of the structure. The rubber strips 17 fill the gaps between the plates, achieving a complete seal of the gaps, thoroughly preventing airflow leakage and causing distortion of the detection data, and ensuring the directional flow of airflow within the channel.

[0024] In this invention, a diversion block 18, or multiple diversion blocks 18, is fixedly disposed in the gap between two mounting plates 1 to uniformly divert and directionally guide the respiratory airflow in the channel, so that the airflow forms a high-intensity opposing impact inside the channel, increasing the resistance to airflow during the patient's exhalation.

[0025] In this invention, intermediate blocks 19 are integrally formed and fixedly disposed on the sides of multiple diverter blocks 18. They enhance the uniformity of secondary airflow sorting and provide radial limiting support for rotating components. They perform secondary straightening and orientation of the airflow after it is guided by the diverter blocks 18, ensuring that the airflow acts uniformly on the subsequent power components and avoiding detection deviation caused by airflow eccentricity. At the same time, they provide stable radial limiting and support for the rotating rod 111, preventing it from eccentrically shaking during rotation.

[0026] In this invention, fixing rings 14 and multiple fixing rings 14 are respectively fixedly disposed on the sides of two mounting plates 1, protruding to improve the coaxial installation positioning accuracy and support stability of the rotating components. This provides a highly coaxial installation positioning and solid support foundation for rotating core components such as small bearings 110 and rotating rods 111, ensuring the assembly coaxiality of the rotating components, reducing eccentricity errors during rotation, and ensuring the accuracy of power transmission and the accuracy of test data.

[0027] In this invention, the detection mechanism further includes a circular ring pad 13, which is movably sleeved on one end of the long bolt 11, providing a triple function of elastic buffering, shock absorption, and thread anti-loosening. It is positioned between the threaded ring 12 and the mounting plate 1, and its elastic deformation offsets the impact force caused by equipment vibration, preventing the threaded ring 12 from loosening after locking. At the same time, it prevents wear and deformation of the plate caused by hard contact between the bolt end and the plate, thus protecting the structural integrity of the mounting plate 1.

[0028] In this invention, the small bearing 110 is sleeved in the middle of the fixed ring 14, protruding with the characteristics of low-friction rotational support and coaxiality maintenance. It provides non-contact low-friction support for the rotation of the rotating rod 111, greatly reducing the rotational friction resistance of the rotating rod 111, ensuring the smoothness and coaxiality of the rotation of the rotating rod 111, reducing mechanical loss, and enabling the rotating rod 111 to generate a sensitive response to weak airflow dynamics, thereby improving the low-velocity airflow detection capability of the detection mechanism.

[0029] In this invention, the rotating rod 111 is disposed in the middle of the small bearing 110. As the core power transmission component of the detection mechanism, it highlights the precise conversion characteristic of airflow energy to mechanical rotation. It converts the airflow energy received by the blower 112 into its own rotational mechanical energy without loss, realizing a precise linear conversion of airflow energy to mechanical rotation. Its rotation angle and rotation speed are strictly positively correlated with the airflow velocity and pressure, providing a precise mechanical quantity basis for subsequent detection.

[0030] In this invention, multiple air-blowing blades 112 are arranged and fixedly disposed around the outer surface of the rotating rod 111. The protrusion maximizes the contact area of ​​the airflow and the efficiency of airflow power reception. The radially extended structure greatly increases the effective contact area with the breathing airflow, which can efficiently and comprehensively receive the impact force of the airflow and drive the rotating rod to rotate. Its rotation state directly and truly reflects the power of the breathing airflow, thereby accurately reflecting the degree of breathing effort of the tester.

[0031] In this invention, the sealing plate 114 is fixed to the end of the fixing ring 14, protruding from the end of the fixing ring to provide a full seal and support for component installation, thereby achieving a seamless full seal at the end of the fixing ring. This prevents airflow from leaking out through the gap between the fixing ring 14 and the rotating rod 111, ensuring the airtightness of the airflow channel. At the same time, it provides a flat, firm, and stable installation base for the light-absorbing plate 115, ensuring the installation accuracy and light absorption effect of the light-absorbing plate 115.

[0032] In this invention, the detection mechanism further includes a corner piece 113, which is integrally formed and fixedly disposed on the edge of the air blowing piece 112 to increase the high sensitivity response characteristics of weak airflow. The corner piece 113 extends outward in a bent structure to further increase the effective contact area and airflow carrying capacity of the air blowing piece 112 and the airflow, so that the air blowing piece 112 can also produce a clear and identifiable rotational response to weak breathing airflow, and greatly improve the detection sensitivity of the detection mechanism to weak breathing effort changes.

[0033] In this invention, the light-absorbing plate 115 is fixed to the surface of the sealing plate 114, highlighting the full absorption characteristics of stray laser and the anti-interference ability of laser ranging. It can fully and efficiently absorb stray laser emitted by the laser rangefinder, avoid laser reflection forming interference spots, eliminate stray laser interference to the laser ranging signal, and ensure the accuracy and stability of laser ranging.

[0034] In this invention, a notched plate 116 is fixedly sleeved on the end of a rotating rod 111 and rotates synchronously with the rotating rod 111. As a dynamic detection target of the laser rangefinder 118, it highlights the precise conversion characteristics of mechanical rotation amount to ranging signal change. Its notched structure makes the laser ranging signal generate periodic and regular distance changes with rotation, which facilitates the conversion of continuous mechanical rotation amount into collectable and calculable electrical signal changes, providing a clear signal basis for the quantification of breathing effort.

[0035] In this invention, a support frame 117, and multiple support frames 117 are respectively fixedly set on the surface of two mounting plates 1, which enhances the installation stability and positioning accuracy of the laser rangefinder 118, provides rigid and shockproof installation support and coaxial positioning for the laser rangefinder 118, prevents the laser rangefinder 118 from shifting or tilting due to equipment vibration or structural deformation, ensures accurate alignment of laser emission and reception, and guarantees ranging accuracy.

[0036] In this invention, a laser rangefinder 118 is fixed in the middle of the support frame 117, highlighting the rapid and accurate conversion of mechanical rotation into electrical signals. It can detect the distance change of the notch plate during rotation in real time and without contact, quickly converting mechanical rotation into electrical signals to achieve real-time quantitative detection of breathing effort, and the detection accuracy is not affected by mechanical wear.

[0037] In this invention, the magnetic attraction mechanism includes: an open frame 2, with two open frames 2 respectively fixedly disposed on the top and bottom of the mounting plate 1, protruding the rigidity of the structural connection and the smoothness of airflow conduction, realizing a seamless rigid connection between the magnetic attraction mechanism and the detection mechanism, ensuring the overall structural strength, and forming an airflow transfer channel to realize smooth and unobstructed airflow conduction between the detection mechanism and the magnetic attraction mechanism.

[0038] In this invention, vertical tubes 21, one end of two vertical tubes 21 are embedded in the side of the opening frame 2, which enhances the directionality of airflow turning and the smoothness of transmission, realizes 90° vertical turning and directional conduction of airflow, and enables the airflow to complete lossless and deflection-free directional transmission between the detection mechanism and the probe, ensuring the effective transmission of airflow power.

[0039] In this invention, two docking cylinders 22 are integrally formed and fixedly sleeved on the other end of two vertical tubes 21, protruding to provide basic support and guidance for magnetic attraction docking. As the core docking foundation of the magnetic attraction mechanism, it provides precise installation space for sealing magnetic attraction components such as rubber sleeve 23 and magnet ring 24, and at the same time provides precise guidance for the axial movement of movable sleeve 25, ensuring the coaxiality of magnetic attraction docking.

[0040] In this invention, the rubber sleeve 23 is bonded to the inner wall of the docking cylinder 22 with adhesive, which enhances the tightness of the elastic seal and the protective function of docking buffer. The elastic material is used to achieve a flexible seal between the movable sleeve and the docking cylinder. The elastic deformation makes the sealing surface fit tightly, improves the sealing effect, and at the same time alleviates the hard contact impact during magnetic docking, protecting the structural integrity of the magnetic components and the movable sleeve.

[0041] In this invention, the magnet ring 24 is embedded in the rubber sleeve 23, protruding the basic magnetic force supply characteristics of magnetic attraction docking, providing a stable and continuous basic magnetic force for magnetic quick replacement, and forming a magnetic attraction force with the magnet ring 29 due to their opposite polarity, providing core magnetic force support for the rapid docking and anti-loosening sealing of the probe.

[0042] In this invention, the movable sleeve 25 is movably fitted inside the docking cylinder 22, providing flexibility for axial movement and tightness for sealing. It can slide freely along the axial direction of the docking cylinder 22, and with the help of magnetic attraction, it enables rapid docking and separation of the probe. At the same time, under the action of magnetic attraction, it is tightly fitted with the rubber sleeve 23 to form a sealing surface, ensuring the sealing effect.

[0043] In this invention, the connecting pipe 26 has one end fixedly installed in the middle of the movable sleeve 25, which protrudes to ensure the continuity of airflow and the basic support for component installation. As the core airflow channel between the probe and the equipment, it realizes smooth airflow throughout the detection process. At the same time, it provides a solid installation foundation for elastic anti-loosening components such as the sliding cylinder 27 and the large spring 28, realizing the dual transmission of force and airflow.

[0044] In this invention, the magnetic attraction mechanism further includes a sliding cylinder 27, which is fixedly sleeved on the outer surface of the connecting tube 26. The guiding nature of the extension and retraction of the large spring 28 and the precision of the movement of the adhesive rod 210 provide extension and retraction guidance space for the large spring 28, preventing the large spring 28 from deviating or jamming during extension and retraction. At the same time, it provides precise guidance for the axial movement of the adhesive rod 210, ensuring the linearity of the pressing operation.

[0045] In this invention, two large springs 28 are embedded at one end in the middle of the sliding cylinder 27, providing timely elastic reset and buffering against loosening. This provides a continuous elastic reset force for the magnetic attraction mechanism, and together with the magnetic attraction force, achieves dual intelligent anti-loosening. When the equipment is subjected to vibration or airflow impact, the external force is quickly offset by elastic deformation to prevent the probe from loosening. At the same time, it provides a reverse elastic force for probe disassembly, facilitating quick separation. When the probe needs to be disassembled, the pressing ring 211 is manually pressed. The pressing force is transmitted to the magnet ring 29 through the adhesive rod 210, overcoming the magnetic attraction force and the elastic force of the large springs 28, causing the magnet ring 29 to separate from the magnet ring 24. The sealing and bonding state between the movable sleeve 25 and the rubber sleeve 23 is released, and the probe can be directly pulled to complete the disassembly. The operation is convenient.

[0046] In this invention, the surface of the magnet ring 29 is glued to the other end of the two large springs 28, highlighting the core tensile force characteristic of the magnetic attraction. It forms a core magnetic force cooperation with the magnet ring 24, which is opposite in polarity, and generates a strong magnetic attraction force that drives the movable sleeve to tightly adhere to the rubber sleeve 23, ensuring a tight fit of the sealing surface and realizing the linkage between magnetic attraction and sealing.

[0047] In this invention, adhesive rods 210, one end of multiple adhesive rods 210 is bonded to the surface of the magnet ring 29 with adhesive, highlighting the precise transmission characteristics of pressing pressure, realizing a rigid connection between the magnet ring 29 and the pressing ring 211, and transmitting the pressing pressure applied by the tester to the pressing ring 211 to the magnet ring 29 without loss and with precision, overcoming magnetic attraction and pulling force, and realizing the separation of the magnet ring 29 and the magnet ring 24.

[0048] In this invention, a pressing ring 211 is fixedly disposed at the other end of multiple adhesive rods 210, which highlights the convenience of applying force and the dispersion of force, providing a convenient and comfortable point of force application for the testing personnel, while evenly distributing the pressing force to multiple adhesive rods 210, avoiding excessive local force that could damage the components, and enabling easy and quick disassembly of the probe.

[0049] In this invention, two inclined edges 212 are integrally formed on the inner and outer rings of the rubber sleeve 23, respectively, which enhance the precise guidance of the movable sleeve 25 during docking. The inclined surface structure provides precise guidance for the axial movement of the movable sleeve 25, so that the movable sleeve 25 can quickly and accurately align and fit with the center of the rubber sleeve 23 under the magnetic attraction force, thereby improving the docking efficiency and coaxiality of the magnetic quick-change.

[0050] In this invention, two semi-circular grooves 213 are respectively opened on the inner and outer sides of the rubber sleeve 23, which enhance the firmness of adhesive storage and the stress relief characteristics of deformation. They are used to store adhesive, increase the contact area between the adhesive and the rubber sleeve 23 and the connecting cylinder 22, improve the bonding firmness between the rubber sleeve 23 and the connecting cylinder 22, prevent the rubber sleeve 23 from falling off, and at the same time relieve the internal stress of the rubber sleeve 23 during the sealing and deformation process, thus extending the service life of the rubber sleeve 23.

[0051] In this invention, the end of the laser rangefinder 118 is electrically connected to a connecting line 5, one end of the connecting line 5 is embedded with a protective shell 6, the front of the protective shell 6 is embedded with a display screen 7, and the inner wall of the protective shell 6 is fixed with a circuit board. Multiple laser rangefinders 118 and display screens 7 are electrically connected to the circuit board through the connecting line 5.

[0052] In this invention, the connecting line 5 protrudes to enhance the stability and anti-interference of electrical signal transmission, enabling high-speed, lossless electrical signal transmission between the laser rangefinder 118 and the circuit board, thus avoiding signal attenuation; the protective shell 6 protrudes to provide all-around protection for the circuit board, offering multiple protections against dust, water, collision, and electromagnetic interference, ensuring the stable operation of the circuit board; the circuit board protrudes to provide rapid processing and calculation of electrical signals, enabling real-time acquisition, noise reduction, and calculation of the electrical signals transmitted by the laser rangefinder 118, converting the electrical signals into intuitive breathing effort detection data; the display screen 7 protrudes to provide real-time visualization of the detection data, displaying the breathing effort data calculated by the circuit board in real time and clearly, facilitating quick reading, recording, and analysis by testing personnel.

[0053] In this invention, the right side plate 15, the left side plate 16 and the two mounting plates 1 form a Tesla valve, which forms an air flow channel inside and is connected to the interior of the two open frames 2. Multiple diverter blocks 18 are evenly distributed at equal intervals in the air flow channel, and the multiple diverter blocks 18 guide the air to form opposing impacts inside the air flow channel.

[0054] In this invention, the Tesla valve structure highlights the asymmetric resistance characteristics of the breathing airflow. Combined with the opposing impact guidance of the triangular diverter block 18, the detection mechanism can accurately distinguish the effort changes at different breathing stages, while greatly improving the ability to identify minute changes in breathing effort, making it easier to accurately assess the breathing state of the test subject.

[0055] In this invention, multiple air blowing blades 112 are arranged in a group around the outer surface of the rotating rod 111. The middle block 19 is located in the middle of the two groups of air blowing blades 112. The diverting block 18 is triangular in shape. The axial direction of the rotating rod 111 is biased to one side of the center of the middle block 19, so that the distance between the multiple air blowing blades 112 and the surface of the left side plate 16 is different.

[0056] In this invention, the structure highlights the comprehensiveness and blind-zone-free characteristics of airflow response. The triangular-shaped diverter block 18 realizes efficient airflow diversion and counter-impact. The middle block 19 separates and uniformly guides the airflow of the two sets of air blowers. The eccentric setting of the rotating rod 111 makes the air blower 112 and the side plate form a gradient distance, so that the air blower 112 can produce a precise and sensitive rotational response to airflows of different directions and different velocities, completely eliminating airflow blind zones and avoiding detection errors caused by airflow not contacting the air blower 112.

[0057] In this invention, the rotating rod 111 is movably inserted through the middle of the sealing plate 114, and the two fixing rings 14 are respectively movably sleeved on both ends of the rotating rod 111. The rotating rod 111 is rotatably inserted through the middle of the two fixing rings 14 via the small bearing 110, and the rotating rod 111 is movably inserted through the middle block 19.

[0058] In this invention, the multi-point support structure provides ultra-high stability and coaxiality of the rotating rod 111. The fixed ring 14 and the small bearing 110 cooperate to provide high-precision coaxial support for both ends of the rotating rod 111. The middle block 19 provides radial limiting and auxiliary support for the rotating rod 111 in the middle, forming a multi-point support structure of "support at both ends + limiting in the middle". This prevents the rotating rod 111 from eccentricity, swaying, or slippage when rotating, ensuring the stability and coaxiality of the rotating rod 111. Structurally, this eliminates detection errors caused by rotational deviation.

[0059] In this invention, the adhesive rod 210 is movably inserted through the middle of one end of the sliding cylinder 27, and two large springs 28 are movably sleeved in the gap between the connecting tube 26 and the sliding cylinder 27. The magnet ring 24 and the magnet ring 29 attract each other, causing the movable sleeve 25 to be tightly attached to the rubber sleeve 23, so that the inner wall of the rubber sleeve 23 and the movable sleeve 25 are kept sealed. The outer diameter of the movable sleeve 25 is smaller than the inner diameter of the connecting tube 22.

[0060] In this invention, the structure highlights the linkage of magnetic attraction sealing and the flexibility of component movement. The sliding cylinder 27 provides precise guidance for the adhesive rod 210, ensuring smooth pressing operation. The gap between the connecting tube and the sliding cylinder 27 provides sufficient extension and contraction space for the large spring 28. The magnetic attraction force enables the movable sleeve 25 and the rubber sleeve 23 to fit tightly together to form a surface seal, effectively preventing leakage of the test air exhaled by the patient during the testing process. The diameter difference between the movable sleeve 25 and the connecting cylinder 22 provides sufficient axial movement space for the movable sleeve 25, ensuring the smooth docking and separation actions of the magnetic quick-change and the deformation of the elastic anti-loosening large spring, realizing the triple linkage of "magnetic quick-change + elastic anti-loosening + sealing and leak prevention".

[0061] In this invention, the breathing nozzle 4 is made of food-grade flexible silicone, the laser rangefinder 118 uses a high-precision laser displacement sensor, and the circuit board integrates an STM32 main control chip, a signal acquisition module, a noise reduction module, and a calculation module. The signal acquisition module is used to acquire the electrical signal of the laser rangefinder 118, the noise reduction module is used to eliminate external electromagnetic interference, the calculation module is used to convert the electrical signal into detection data such as breathing effort index and airflow pressure value, the STM32 main control chip realizes the coordinated control of each module, and the display screen 7 uses a high-definition LCD screen.

[0062] Probe Installation: Align the mating end of the detection probe with the mating tube 26 of the magnetic attraction mechanism. Utilize the magnetic attraction force generated by the opposite polarity of the magnetic ring 24 and the magnetic ring 29 to drive the movable sleeve 25 to move axially along the mating cylinder 22 and fit tightly against the rubber sleeve 23, achieving rapid docking and sealing between the probe and the main body of the equipment. At this time, the large spring 28 is in an initial slightly stretched state, providing basic elastic anti-loosening force. If a stronger sealing effect is required, the pressing ring 211 can be manually pushed to bring the magnetic ring 29 closer to the magnetic ring 24, further stretching the large spring 28. The magnetic attraction force and sealing tightness are simultaneously improved, completing the probe installation.

[0063] Test preparation: Flexibly fit the flexible silicone mouthpiece 4 to the mouth and nose of the tester, ensuring a tight fit without gaps; turn on the power switch of the device, the circuit board, laser rangefinder 118 and display screen 7 start up, and the display screen 7 enters the data display standby state, completing the test preparation.

[0064] Breathing detection: The test subject breathes naturally or at a specified rhythm and depth according to the instructions of medical staff. The breathing airflow enters the airflow channel of the equipment through the breathing nozzle 4 and the sleeve tube 3. The airflow is guided by the Tesla valve structure and the triangular diverter block 18 to form a counter-impact. The airflow pushes the blower 112 to drive the rotating rod 111 to rotate around its own axis. The notch plate 116 rotates synchronously with the rotating rod 111. The laser rangefinder 118 detects the rotational displacement of the notch plate 116 in real time, converts the mechanical rotation into an electrical signal, and transmits it to the circuit board through the connecting line 5.

[0065] Data processing and display: The circuit board collects electrical signals through the signal acquisition module. After the noise reduction module eliminates interference, the calculation module converts the electrical signals into intuitive chest breathing effort detection data, such as breathing effort index and airflow pressure value. The detection data is then transmitted to the display screen 7 in real time for clear display. Medical staff can directly read and record the detection data on the display screen 7.

[0066] In use, first, hold the connecting tube 26 and insert the movable sleeve 25 into the connecting tube 22. The movable sleeve 25 rests against the surface of the rubber sleeve 23. Then, push the pressing ring 211 by hand to push the magnet ring 29 closer to the magnet ring 24. The large spring 28 is stretched, causing the magnet ring 29 and the magnet ring 24 to... As the distance between them decreases, the magnetic attraction between them increases, causing the movable sleeve 25 to press against the surface of the rubber sleeve 23. Due to the increased magnetic force between the magnetic ring 24 and the magnetic ring 29, the movable sleeve 25 compresses the inclined edge 212 of the rubber sleeve 23, causing elastic deformation. This makes the rubber sleeve 23 and the inner wall of the movable sleeve 25 fit tightly together, achieving a seal and ensuring good sealing between the rubber sleeve 23 and the movable sleeve 25. This keeps the inside of the sleeve tube 3 and the inside of the opening frame 2 connected. The examiner breathes naturally or at a specified rhythm and depth according to the instructions of medical staff. The breathing airflow enters the airflow channel of the equipment through the breathing nozzle 4 and the sleeve tube 3. When the airflow passes through the Tesla valve structure, the gas can flow quickly through the airflow channel when the patient inhales, facilitating the patient's inhalation. The triangular diverter block 1... The guide of 8 forms a counter-impact that obstructs airflow. During the patient's exhalation, air flows through the Tesla valve structure and blows towards the blower 112, causing the rotating rod 111, blower 112, corner plate 113, sealing plate 114, and notch plate 116 to rotate synchronously. The air drives multiple sets of blower 112 to rotate. The greater the pressure of the patient's exhaled air, the higher the rotation speed of the blower 112. Moreover, the rotation speed of multiple sets of blower 112 is different. Multiple laser rangefinders 118 detect the rotation angle and speed of the corresponding notch plate 116. Using the flow rate decrease curve formed by multiple sets of detection electrical signals, combined with the airflow dynamics algorithm, the patient's expiratory pressure and chest breathing effort index are accurately calculated. The exhalation degree data is displayed on the display screen 7.

[0067] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A smart anti-loose chest respiratory effort detection device with magnetic attraction quick-change probe, characterized in that: The utility model relates to a kind of detection device for detecting respiratory effort, including: ​ Magnetic attraction mechanism, one end of one magnetic attraction mechanism is provided with sleeve pipe (3), magnetic attraction mechanism realizes probe and equipment main body with magnetic attraction type quick disassembly and assembly, and through magnetic attraction cooperation elastic structure forms intelligent anti-loose seal, prevent probe from falling off and patient exhaled detection air leakage during detection; Detection mechanism, two ends of detection mechanism are fixedly arranged at the other end of two magnetic attraction mechanisms respectively; Breathing nozzle (4), breathing nozzle (4) is nested in one end of sleeve pipe (3), for flexible docking with the mouth and nose of detector; Detection mechanism includes: Mounting plate (1), the top and bottom of two mounting plates (1) are fixedly arranged at the other end of two magnetic attraction mechanisms respectively, as the main support frame of detection mechanism; Long bolt (11), one end of multiple long bolts (11) is movably penetrated in two mounting plates (1), to realize the detachable connection of two mounting plates (1); Thread ring (12), the middle thread of thread ring (12) is sleeved on the end of long bolt (11), and is locked with long bolt (11) to realize mounting plate (1); Right side plate (15), left side plate (16) and rubber strip (17), right side plate (15), left side plate (16) and two rubber strips (17) are fixedly arranged on the side of two mounting plates (1) respectively, and form closed airflow channel with mounting plate (1), and rubber strip (17) enhances the sealing performance of channel; Shunt block (18), multiple shunt blocks (18) are fixedly arranged in the gap of two mounting plates (1), for shunting and guiding airflow, so that airflow forms counter-impact, and increases the resistance of airflow flow; Middle block (19), multiple middle blocks (19) are integrally formed and fixedly arranged on the side of multiple shunt blocks (18) respectively; Fixed ring (14), multiple fixed rings (14) are fixedly arranged on the side of two mounting plates (1) respectively.

2. The intelligent anti-loosening chest respiratory effort detection device with a magnetic suction probe according to claim 1, characterized in that, The detection mechanism further includes: Circular ring pad (13), circular ring pad (13) is movably sleeved on one end of long bolt (11); Small bearing (110), small bearing (110) is sleeved on the middle of fixed ring (14); Rotating rod (111), rotating rod (111) is penetrated and arranged in the middle of small bearing (110); Wind blowing piece (112), multiple wind blowing pieces (112) are fixedly arranged on the outer surface of rotating rod (111) and are distributed around, receive airflow impact force and drive rotating rod (111) to rotate, and the rotation speed thereof is positively correlated with airflow flow rate and pressure, reflecting respiratory effort degree; Sealing plate (114), sealing plate (114) is fixed on the end of fixed ring (14).

3. The intelligent anti-loosening chest respiratory effort detection device with a magnetic suction probe according to claim 2, characterized in that, The detection mechanism further includes: Corner piece (113), corner piece (113) is integrally formed and fixedly arranged on the edge of wind blowing piece (112), to increase the effective contact area of wind blowing piece (112) and airflow, so that wind blowing piece can also respond to weak airflow; Light absorption plate (115), light absorption plate (115) is fixed on the surface of sealing plate (114). The notch plate (116) is fixedly sleeved on the end of the rotating rod (111) and rotates synchronously with the rotating rod (111), and serves as a dynamic detection target of the laser range finder (118), and the notch structure of the notch plate (116) causes the laser ranging signal to periodically change, so that the rotation amount can be converted into an electric signal; The support frame (117) is fixedly arranged on the surface of the two mounting plates (1); The laser range finder (118) is fixedly arranged in the middle of the support frame (117), and detects the distance change of the notch plate (116) in the rotating process in real time, and converts the mechanical rotation amount into an electric signal.

4. The intelligent anti-loosening chest respiratory effort detection device with a magnetic suction probe according to claim 3, characterized in that, The magnetic attraction mechanism comprises: The opening frame (2) is fixedly arranged on the top and bottom of the mounting plate (1); The vertical pipe (21) is embedded on the side of the opening frame (2); The butt joint cylinder (22) is integrally formed and fixedly sleeved on the other end of the two vertical pipes (21); The rubber sleeve (23) is arranged on the inner wall of the butt joint cylinder (22) by glue; The magnet ring (24) is embedded in the rubber sleeve (23); The movable sleeve (25) is movably sleeved in the butt joint cylinder (22); The butt joint pipe (26) is fixedly arranged in the middle of the movable sleeve (25).

5. The intelligent anti-loosening chest respiratory effort detection device with a magnetic suction probe according to claim 4, characterized in that, The magnetic attraction mechanism further comprises: The sliding cylinder (27) is fixedly sleeved on the outer surface of the butt joint pipe (26); The large spring (28) is embedded in the middle of the sliding cylinder (27); The magnet ring (29) is arranged on the other end of the two large springs (28) by glue; The adhesive rod (210) is arranged on the surface of the magnet ring (29) by glue; The pressing ring (211) is fixedly arranged on the other end of the adhesive rod (210); The inclined edge (212) is integrally formed on the inner and outer circles of the rubber sleeve (23); The semicircular groove (213) is arranged on the inner and outer sides of the rubber sleeve (23).

6. The intelligent anti-loosening chest respiratory effort detection device with a magnetic suction probe according to claim 5, characterized in that, The end of the laser range finder (118) is electrically connected with the connecting line (5), one end of the connecting line (5) is embedded with the protective shell (6), the front surface of the protective shell (6) is embedded with the display screen (7), the inner wall of the protective shell (6) is fixedly arranged with the circuit board, and the plurality of laser range finders (118) and the display screen (7) are electrically connected on the circuit board through the connecting line (5).

7. The intelligent anti-loosening chest respiratory effort detection device with a magnetic suction probe according to claim 6, characterized in that, The right side plate (15), the left side plate (16) and the two mounting plates (1) form a Tesla valve, an air flow channel is formed in the Tesla valve, the air flow channel is in communication with the interiors of the two opening frames (2), the plurality of shunt blocks (18) are uniformly distributed in the air flow channel at equal intervals, and the plurality of shunt blocks (18) guide the air to form opposite impacts in the air flow channel.

8. The intelligent anti-loosening chest respiratory effort detection device with a magnetic suction probe according to claim 6, characterized in that, The plurality of wind blowing pieces (112) are distributed around the outer surface of the rotating rod (111) in a group, the middle block (19) is located in the middle of the two groups of wind blowing pieces (112), the shunt block (18) is triangular, the axis of the rotating rod (111) is deviated to one side of the center of the middle block (19), and the plurality of wind blowing pieces (112) are different in spacing from the surface of the left side plate (16).

9. The intelligent anti-loosening chest respiratory effort detection device with a magnetic suction probe according to claim 6, characterized in that, The rotating rod (111) is movably penetrated in the middle of the sealing plate (114), the two fixed rings (14) are movably sleeved at the two ends of the rotating rod (111), the rotating rod (111) is movably penetrated in the middle of the middle block (19) through the small bearing (110) movably penetrated in the middle of the two fixed rings (14), and the rotating rod (111) is movably penetrated in the middle of the middle block (19).

10. The intelligent anti-loosening chest respiratory effort detection device with a magnetic suction probe according to claim 6, characterized in that, The adhesive rod (210) is movably penetrated in the middle of one end of the sliding cylinder (27), the two large springs (28) are movably sleeved in the gap between the butt joint pipe (26) and the sliding cylinder (27), the magnet ring (24) and the magnet ring (29) are attracted to each other, the movable sleeve (25) is tightly attached to the rubber sleeve (23), the inner wall between the rubber sleeve (23) and the movable sleeve (25) is kept sealed, and the outer diameter of the movable sleeve (25) is smaller than the inner diameter of the butt joint cylinder (22).

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