Breathing gas separation device for cardiopulmonary exercise test and use method

Abstract

The invention relates to the technical field of medical test equipment. The invention discloses an exercise cardiopulmonary test breathing gas separation device and a use method, the top end, the left end and the right end of a breathing separation test mask are each provided with an elastic bandage for helping the breathing separation test mask to be fixed to the head of a user, and the end, not connected with the breathing separation test mask, of each elastic bandage is provided with an insertion buckle; a first plug is vertically arranged at the top of the adjusting box, the first plug is in sliding connection with the top of the adjusting box in the vertical direction, two second plugs are symmetrically and horizontally arranged at the left end and the right end of the adjusting box, the two second plugs are in sliding connection with the left end and the right end of the adjusting box respectively, and a real-time tightening device is arranged in the adjusting box; according to the device, on the premise that the wearing comfort is guaranteed, the wearing tightness between the testing equipment and the head of the user is adjusted in real time according to the running speed of the user, and therefore the effect that the wearing comfort and the head fitting degree are mutually balanced is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical testing equipment, and in particular to a respiratory gas separation device for exercise cardiopulmonary testing and a method of use. Background Art

[0002] With the increasing use of exercise cardiopulmonary testing, exercise cardiopulmonary testing equipment is becoming increasingly popular. At the same time, portability and multi-application scenarios are gaining increasing attention. Conventional exercise cardiopulmonary testing systems are bulky and complex, making them difficult to perform outdoor tests. Therefore, portable exercise cardiopulmonary testing equipment has emerged. Existing exercise cardiopulmonary testing equipment often uses an elastic strap to attach to the head. This mounting method presents the following issues: when wearing the test equipment while running, the head shakes more frequently as the running cadence increases, causing the test equipment to shake along with it. Excessive shaking can lead to a loose fit between the test equipment, the user's head, and mouth, affecting test results. While a tight fit between the test equipment and the head may mitigate this problem, wearing comfort will be significantly compromised. There is a lack of a device that can adjust the tightness of the test equipment to the user's head in real time based on the user's running speed, while ensuring comfortable wearing. This balance between comfort and head fit is therefore lacking. Summary of the Invention

[0003] The present invention aims to provide a respiratory gas separation device for exercise cardiopulmonary testing and a method for use thereof, in order to address the problems identified in the aforementioned background art. To achieve the aforementioned objectives, the present invention provides the following technical solution: The device comprises a respiratory gas separation test mask, wherein the top and left and right ends of the respiratory gas separation test mask are each provided with elastic straps to help secure the respiratory gas separation test mask to the user's head, and each elastic strap has a buckle at the end not connected to the respiratory gas separation test mask;

[0004] It also includes an adjusting box, wherein a first plug is vertically provided on the top of the adjusting box, and the first plug is slidably connected to the top of the adjusting box along the vertical direction, and two second plugs are symmetrically and horizontally provided on the left and right ends of the adjusting box, and the two second plugs are respectively slidably connected to the left and right ends of the adjusting box, and a real-time tightening device is provided inside the adjusting box, and the real-time tightening device is respectively connected to the first plug and the two second plugs, and three buckles are respectively detachably connected to the plug-in ends of the first plug and the two second plugs at corresponding positions.

[0005] Preferably, the real-time tightening device includes a tightening component, which is arranged on a side of the adjusting box close to the first plug, one side of the tightening component is provided with a real-time adjustment component for adjusting the tension of the elastic strap, one side of the real-time adjustment component is provided with a tensioning strength adjustment component for adjusting the tensioning strength of the elastic strap each time, one side of the tensioning strength adjustment component is provided with a distance component, and the other side of the real-time adjustment component is provided with a reset component.

[0006] The cam is connected to the bottom of the adjusting box by a plurality of means, and the plurality of means are connected to each other with a plurality of means for adjusting the position of the adjusting box.

[0007] Preferably, the real-time adjustment component includes a mounting box, the mounting box is arranged on one side of the interior of the adjustment box, a micro motor is provided on one side of the interior of the mounting box, a first bevel gear is provided on the output end of the micro motor, a first mounting bracket is provided on one side of the micro motor, the upper portion of the first mounting bracket is rotatably provided with a first rotating shaft, one end of the first rotating shaft is provided with a second bevel gear, the second bevel gear is meshed with the first bevel gear, one end of the first rotating shaft passes through the side end of the mounting box and is located inside the adjustment box, and the first rotating shaft is rotatably connected to the side end of the mounting box, a second mounting bracket is provided on one side of the interior of the adjustment box, the upper portion of the second mounting bracket is rotatably provided with a second rotating shaft, and the second The end portion of the rotating shaft and the first rotating shaft are each provided with a pulley, and a transmission belt is sleeved on the two pulleys. A driving disk is provided at one end of the second rotating shaft away from the pulley, and the driving disk is eccentrically connected to the end portion of the second rotating shaft. A driving groove is provided on the inner side of the driving disk, and a driving frame is provided on one side of the second mounting frame. The top of the driving frame is horizontally slidably connected to the first sliding frame, and the top of the driving frame is horizontally and rotatably provided with a driving screw rod, and the driving screw rod passes through the bottom of the first sliding frame and is threadedly connected to it. Coil springs are provided at the rotating connection points of the two ends of the driving screw rod and the two ends of the top of the driving frame, and a rotating disk is provided at one end of the driving screw rod, and a circle of anti-slip grooves is provided on the outer side of the rotating disk.

[0008] The cam is connected to the drive shaft by the spring, and the cam is connected to the drive shaft by the spring, and the cam is connected to the drive shaft by the spring.

[0009] Preferably, the tensioning strength adjustment assembly includes a ratchet, which is arranged on one end of the driving screw, and a ratchet rod is rotatably arranged on one side of the top of the driving frame, and a first spring is provided between the top of the ratchet rod and the top of the driving frame, and one end of the ratchet rod is embedded in one of the ratchet grooves on the ratchet, and the ratchet is restricted from rotating clockwise by the ratchet rod. A trigger plate is provided inside the mounting box, and one side of the trigger plate passes through the side end of the mounting box and is horizontally slidably connected to the side end of the mounting box, and one end of the trigger plate is located on one side of the rotating disk and does not contact it, and the bottom of one side of the trigger plate is in contact with the top of the rotating disk. At the same horizontal height, a second spring is provided between the trigger plate and one side adjacent to the interior of the installation box, a connecting frame is provided inside the installation box, the connecting frame is located on one side of the trigger plate and is horizontally slidably connected to the bottom of the installation box, a third spring is provided between the connecting frame and the inner wall of the installation box, a trigger rod is provided at the upper end of the connecting frame, one end of the trigger rod is rotatably connected to the upper end of the connecting frame, and the end of the trigger rod adjacent to the trigger plate is arranged in an arc surface. When the third spring is in a relaxed state and the trigger rod is in a horizontal state, the trigger rod squeezes the trigger plate to drive the trigger plate to slide to the outside of the installation box.

[0010] Preferably, the distance component includes a cam, a driving wheel and a connecting rod, the cam is eccentrically arranged at the output end of the micro motor, the connecting rod is arranged at the side end of the connecting frame, the driving wheel is rotatably arranged on the end of the connecting rod close to the cam, the outer side of the driving wheel contacts the outer side of the cam, and when the cam rotates one circle clockwise, it drives the driving wheel to first move away from the micro motor and then approach the micro motor.

[0011] Preferably, the reset assembly includes a swing lever, a telescopic box, a toggle lever and a fourth spring, the swing lever is horizontally arranged and one end of the swing lever is connected to the rotation connection of the ratchet lever and the driving frame, the first connecting rod is horizontally arranged on one side close to the swing lever, the side end of the telescopic box is horizontally provided with a fourth spring, one end of the toggle lever passes through the side end of the telescopic box and is slidably connected to it in the horizontal direction, and the side end of the toggle lever is connected to one end of the fourth spring, an inclined surface is provided at one end of the toggle lever close to the swing lever, the end of the swing lever close to the toggle lever is arc-shaped, the toggle lever is located directly above the swing lever, and the top of the toggle lever is flat, when the toggle lever descends and contacts one end of the swing lever, the toggle lever is driven to slide inside the telescopic box by the squeezing of the inclined surface of the side end of the toggle lever and the arc surface of the side end of the swing lever.

[0012] Preferably, it also includes a strap sweat-wicking component, and a strap sweat-wicking component is provided on each of the elastic straps located at the left and right ends of the adjustment box, the strap sweat-wicking component includes a sweat-absorbing sponge, a sweat-wicking flexible duct and a sweat-wicking port, the interior of the elastic strap is hollow and is provided with a long sweat-absorbing sponge, the two ends of the sweat-absorbing sponge are connected to the two ends of the interior of the elastic strap, the interior of the elastic strap is provided with a cavity connected to the area where the sweat-absorbing sponge is provided in the lower area of the sweat-absorbing sponge, and a sweat-wicking flexible duct that does not absorb sweat is horizontally provided inside the cavity, and a sweat-wicking port is provided at the end of the bottom of the elastic strap away from the respiratory separation test mask, and one end of the sweat-wicking port is connected to one end of the sweat-wicking flexible duct.

[0013] Preferably, the method for using the respiratory gas separation device for exercise cardiopulmonary test comprises the following steps:

[0014] S1: When using this device, first, plug the buckle of the elastic strap at the top of the respiratory separation test mask into the first plug at the top of the adjustment box, then fit the adjustment box to the back of the user's head. The fitting surface of the adjustment box and the back of the head is provided with a flexible breathable layer to improve wearing comfort. Then, stretch the elastic straps on both sides of the respiratory separation test mask to both sides of the face and fit them to the face. Stretch the elastic straps to the position behind the ears and plug the buckles at the ends of the two elastic straps into the two second plugs on both sides of the adjustment box. The respiratory separation test mask covers the user's mouth and nose, thereby completing the wearing of the respiratory separation test mask.

[0015] S2: During running, as the user's running speed increases or slows down, the tension of the three elastic straps is adjusted in real time according to the change of the user's running frequency with the cooperation of the real-time tightening device. The faster the running speed, the stronger the tension, and the slower the running speed, the weaker the tension, so that the tightening degree of the elastic straps is matched with the running speed, thereby ensuring that the breathing separation test mask is always in a relatively tight state with the user's mouth and nose while ensuring wearing comfort.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In the present invention, after the user puts on the device, during the running exercise, first, as the user runs, the head will shake up and down with the running steps. Since the frequency of the head shaking varies according to the running speed within a certain period of time, the faster the running speed is, the stronger the tension is applied to the three elastic straps under the cooperation of the real-time adjustment component, the tensioning strength adjustment component and the distance component. Conversely, the slower the running speed of the user, the tensioning degree of the three elastic straps is reduced accordingly, thereby achieving real-time adjustment of the wearing tightness between the test device and the user's head according to the user's running speed, thereby achieving a balance between wearing comfort and head fit.

[0018] In the present invention, as the user wears the respiratory separation test mask for a long time and exercises, the user's sweat will accumulate on the elastic strap, affecting the user's wearing comfort. By arranging a sweat-absorbing sponge inside the elastic strap, the sweat generated by the user's head will be absorbed into the sweat-absorbing sponge. As the user's running speed changes, the tension of the elastic strap will change, and then the elasticity of the elastic strap will be used to squeeze the sweat-absorbing sponge, and the sweat will fall on the sweat-discharging flexible duct. Since the elastic strap has a certain inclination when worn, the sweat on the sweat-discharging flexible duct will slide downward and be discharged to the outside of the elastic strap through the sweat-discharging port, thereby improving the sweat-absorbing efficiency of the sweat-absorbing sponge, thereby ensuring the dryness of the elastic strap to a certain extent, and thus improving the wearing comfort of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 is a front cross-sectional view of the real-time tightening device of the present invention;

[0021] Figure 3 This is a partial structural section of the real-time tightening device in the present invention. Figure 1 ;

[0022] Figure 4 This is a partial structural section of the real-time tightening device in the present invention. Figure 2 ;

[0023] Figure 5 It is a partial structural diagram of the real-time adjustment component and the tightening block in the present invention;

[0024] Figure 6 is a side sectional view of the mounting box and the tension strength adjustment assembly of the present invention;

[0025] Figure 7 It is a partial structural diagram of the tensioning strength adjustment component and the distance component in the present invention;

[0026] Figure 8 It is a partial structural diagram of the tensioning strength adjustment component in the present invention;

[0027] Figure 9 A side view of the local structure of the real-time adjustment component of the present invention;

[0028] Figure 10 for Figure 9 Enlarged view of point A in the middle;

[0029] Figure 11 It is a cross-sectional view of the elastic strap and the strap perspiration assembly of the present invention.

[0030] In the figure: 1. respiratory separation test mask; 2. elastic strap; 3. buckle; 4. adjustment box; 5. first plug; 6. second plug; 7. real-time tightening device; 71. tightening assembly; 711. first trapezoidal block; 712. second trapezoidal block; 713. damping telescopic rod; 714. tightening block; 72. real-time adjustment assembly; 721. mounting box; 722. micro motor; 723. first bevel gear; 724. first mounting bracket; 725. first rotating shaft; 726. second bevel gear; 727. second mounting bracket; 728. transmission belt; 729. driving disk; 730. driving bracket; 731. first sliding bracket; 732. driving screw rod; 733. coil spring; 734. rotating disk; 735. first A sliding block; 736, a driving lever; 737, a second sliding frame; 738, a first connecting rod; 739, a second sliding block; 740, a driving hammer; 741, a pulley; 75, a tensioning strength adjustment assembly; 751, a ratchet; 752, a ratchet rod; 753, a first spring; 754, a trigger plate; 755, a second spring; 756, a connecting frame; 757, a third spring; 758, a trigger rod; 76, a distance assembly; 761, a cam; 762, a driving wheel; 763, a connecting rod; 77, a reset assembly; 771, a swing rod; 772, a telescopic box; 773, a toggle rod; 774, a fourth spring; 8, a sweat-wicking strap assembly; 81, a sweat-absorbing sponge; 82, a sweat-wicking flexible conduit; 83, a sweat-wicking port. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0032] See also Figures 1 to 11 The present invention provides a technical solution: a respiratory gas separation device for exercise cardiopulmonary test, comprising a respiratory separation test mask 1, wherein the top and left and right ends of the respiratory separation test mask 1 are provided with elastic straps 2 for helping to fix the respiratory separation test mask 1 to the user's head, and each end of the elastic strap 2 not connected to the respiratory separation test mask 1 is provided with a buckle 3;

[0033] It also includes an adjusting box 4, a first plug 5 is vertically provided on the top of the adjusting box 4, the first plug 5 is slidably connected to the top of the adjusting box 4 along the vertical direction, two second plugs 6 are symmetrically and horizontally provided on the left and right ends of the adjusting box 4, the two second plugs 6 are respectively slidably connected to the left and right ends of the adjusting box 4, a real-time tightening device 7 is provided inside the adjusting box 4, the real-time tightening device 7 is respectively connected to the first plug 5 and the two second plugs 6, and the three buckles 3 are respectively detachably connected to the plug-in ends of the first plug 5 and the two second plugs 6 at corresponding positions.

[0034] In this embodiment, Figures 2 to 10 As shown, the real-time tightening device 7 includes a tightening assembly 71, which is arranged on a side of the adjustment box 4 near the first plug 5. One side of the tightening assembly 71 is provided with a real-time adjustment assembly 72 for adjusting the tension of the elastic band 2. One side of the real-time adjustment assembly 72 is provided with a tensioning strength adjustment assembly 75 for adjusting the tensioning strength of the elastic band 2 each time. One side of the tensioning strength adjustment assembly 75 is provided with a distance assembly 76, and the other side of the real-time adjustment assembly 72 is provided with a reset assembly 77.

[0035] The tightening assembly 71 includes a first trapezoidal block 711, a second trapezoidal block 712, a damping telescopic rod 713 and a tightening block 714. The first trapezoidal block 711 is arranged on one side of the interior of the adjustment box 4 and is slidably connected thereto. A plurality of damping telescopic rods 713 are provided. A plurality of damping telescopic rods 713 are vertically provided between the bottom of the first trapezoidal block 711 and the bottom of the adjustment box 4. The inclined surfaces on both sides of the first trapezoidal block 711 are symmetrically arranged. There are two second trapezoidal blocks 712. The two second trapezoidal blocks 712 are symmetrically arranged on both sides of the first trapezoidal block 711. The two second trapezoidal blocks 712 are both horizontally slidably connected to the side ends inside the adjustment box 4. The second trapezoidal block 712 is provided with an inclined surface on one side close to the first trapezoidal block 711, and the first trapezoidal block 711 and the second trapezoidal block 712 are connected in an oblique sliding manner through the inclined surface. When the first trapezoidal block 711 descends, the two second trapezoidal blocks 712 slide simultaneously toward the opposite side. A damping telescopic rod 713 is horizontally provided between one end of each second trapezoidal block 712 away from the first trapezoidal block 711 and the side end of the adjustment box 4. A tightening block 714 is provided at the lower end of one side of the first trapezoidal block 711. The top of the first trapezoidal block 711 is connected to the bottom of the first plug 5, and the tops of the two second trapezoidal blocks 712 are respectively connected to the side ends of the two second plugs 6;

[0036] The real-time adjustment component 72 includes a mounting box 721, which is arranged on one side of the interior of the adjustment box 4. A micro motor 722 is provided on one side of the interior of the mounting box 721. A first bevel gear 723 is provided on the output end of the micro motor 722. A first mounting bracket 724 is provided on one side of the micro motor 722. A first rotating shaft 725 is rotatably provided on the upper part of the first mounting bracket 724. A second bevel gear 726 is provided at one end of the first rotating shaft 725. The second bevel gear 726 meshes with the first bevel gear 723. One end of the first rotating shaft 725 passes through the side end of the mounting box 721 and is located inside the adjustment box 4. The first rotating shaft 725 is rotatably connected to the side end of the mounting box 721. A second mounting bracket 727 is provided on one side of the interior of the adjustment box 4. The upper part of the second mounting bracket 727 is rotatably provided with a second rotating shaft. The end of the shaft and the first rotating shaft 725 are each provided with a pulley 741, and a transmission belt 728 is sleeved on the two pulleys 741. A driving disk 729 is provided at the end of the second rotating shaft away from the pulley 741. The driving disk 729 is eccentrically connected to the end of the second rotating shaft, and a circle of driving groove is provided on the inner side of the driving disk 729. A driving frame 730 is provided on one side of the second mounting frame 727. The top of the driving frame 730 is slidably connected to the first sliding frame 731 in the horizontal direction. The top of the driving frame 730 is horizontally and rotatably provided with a driving screw rod 732, and the driving screw rod 732 passes through the bottom of the first sliding frame 731 and is threadedly connected to it. Coil springs 733 are provided at the two ends of the driving screw rod 732 and the two ends of the top of the driving frame 730. A rotating disk 734 is provided at one end of the driving screw rod 732, and a circle of anti-slip grooves is provided on the outer side of the rotating disk 734.

[0037] The first sliding frame 731 is connected to a first sliding block 735 for sliding in the vertical direction. A driving lever 736 is provided on one side of the first sliding frame 731. One end of the driving lever 736 is movably connected to the driving groove inside the driving disk 729. The side end of the driving lever 736 is provided with a sliding groove. The side end of the first sliding block 735 is rotatably provided with a connecting piece and the connecting piece is provided in the sliding groove at the side end of the driving lever 736 and is slidably connected thereto. A second sliding frame is vertically provided on the side of the upper end of the driving frame 730 away from the driving disk 729. 737, a first connecting rod 738 is provided at one end of the driving lever 736 away from the driving disk 729, the top end of the first connecting rod 738 is rotatably connected to one end of the driving lever 736, a second sliding block 739 is slidably connected to the second sliding frame 737 in the vertical direction, one side of the second sliding block 739 is rotatably connected to the other end of the first connecting rod 738, and a driving hammer 740 is provided at the side end of the second sliding block 739, the driving hammer 740 is located below the first connecting rod 738 and directly above the tightening block 714;

[0038] The tensioning strength adjustment assembly 75 includes a ratchet 751, which is arranged on one end of the driving screw rod 732. A ratchet rod 752 is rotatably provided on one side of the top of the driving frame 730. A first spring 753 is provided between the top of the ratchet rod 752 and the top of the driving frame 730. One end of the ratchet rod 752 is embedded in one of the ratchet grooves on the ratchet wheel 751, and the ratchet wheel 751 is restricted from rotating clockwise by the ratchet rod 752. A trigger plate 754 is provided inside the mounting box 721. One side of the trigger plate 754 passes through the side end of the mounting box 721 and is horizontally slidably connected to it. One end of the trigger plate 754 is located on one side of the rotating disk 734 and does not contact it, and the bottom of one side of the trigger plate 754 is at the same level as the top of the rotating disk 734. The second spring 755 is provided between the trigger plate 754 and the side adjacent to the inside of the installation box 721. A connecting frame 756 is provided inside the installation box 721. The connecting frame 756 is located on one side of the trigger plate 754 and is horizontally slidably connected to the bottom of the installation box 721. A third spring 757 is provided between the connecting frame 756 and the inner wall of the installation box 721. A trigger rod 758 is provided at the upper end of the connecting frame 756. One end of the trigger rod 758 is rotatably connected to the upper end of the connecting frame 756. The end of the trigger rod 758 adjacent to the trigger plate 754 is arranged in an arc surface. When the third spring 757 is in a relaxed state and the trigger rod 758 is in a horizontal state, the trigger rod 758 squeezes the trigger plate 754 to drive the trigger plate 754 to slide toward the outside of the installation box 721.

[0039] The moving-away assembly 76 includes a cam 761, a driving wheel 762, and a connecting rod 763. The cam 761 is eccentrically arranged at the output end of the micro-motor 722. The connecting rod 763 is arranged at the side end of the connecting frame 756. The driving wheel 762 is rotatably arranged on the end of the connecting rod 763 close to the cam 761. The outer side of the driving wheel 762 contacts the outer side of the cam 761. When the cam 761 rotates one circle clockwise, the driving wheel 762 is driven to move away from the micro-motor 722 and then move closer to the micro-motor 722.

[0040] The reset assembly 77 includes a swing rod 771, a telescopic box 772, a toggle rod 773 and a fourth spring 774. The swing rod 771 is horizontally arranged and one end of the swing rod 771 is connected to the rotation connection between the ratchet rod 752 and the drive frame 730. The first connecting rod 738 is horizontally provided with a telescopic box 772 on the side close to the swing rod 771. The side end of the telescopic box 772 is horizontally provided with a fourth spring 774. One end of the toggle rod 773 passes through the side end of the telescopic box 772 and is connected to it in a horizontal direction. The side end of the movable rod 773 is connected to one end of the fourth spring 774. The end of the toggle rod 773 close to the swing rod 771 is provided with an inclined surface. The end of the swing rod 771 close to the toggle rod 773 is arranged in an arc shape. The toggle rod 773 is located directly above the swing rod 771. The top of the toggle rod 773 is arranged in a flat surface. When the toggle rod 773 descends and contacts one end of the swing rod 771, the inclined surface of the side end of the toggle rod 773 and the arc surface of the side end of the swing rod 771 are squeezed to drive the toggle rod 773 to slide into the telescopic box 772.

[0041] After the user puts on the device, during the running exercise, the micro motor 722 is first controlled to start intermittently and regularly in units of five seconds. Before the micro motor 722 is started, within the five-second interval, the user's head will first shake up and down with the running steps, thereby driving the trigger rod 758 inside the installation box 721 to swing up and down with the connection point with the connecting frame 756 as the axis. The faster the user runs, the more times the trigger rod 758 swings up and down in five seconds. Every time the trigger rod 758 swings up and down, it squeezes the trigger plate 754, driving the trigger plate 754 to move back and forth. When the trigger plate 754 moves toward the outside of the installation box 721, it drives The rotating disk 734 located directly below it rotates a certain angle clockwise. When the trigger plate 754 moves to the inside of the installation box 721 to reset, the rotation of the rotating disk 734 drives the driving screw rod 732 to rotate, thereby driving the ratchet 751 to rotate, and the ratchet rod 752 limits the counterclockwise rotation of the ratchet 751, so that the trigger plate 754 will not drive the rotating disk 734 to rotate counterclockwise when it is reset. Then, within five seconds, the driving screw rod 732 is driven to rotate a certain angle clockwise according to the number of swings of the trigger rod 758. The faster the user runs, the greater the rotation angle of the driving screw rod 732. The slower the running speed, the smaller the rotation angle of the driving screw rod 732. As the driving screw rod 732 rotates, the first sliding frame 731 is driven to rotate in the direction of the rotation of the first sliding frame 731. The top of the driving frame 730 slides toward the direction close to the micro motor 722, thereby adjusting the position of the first sliding block 735 in the driving slot on the driving lever 736. The faster the user runs, the closer the first sliding block 735 is to the rotating disk 734, and the first sliding block 735 slides on the first sliding frame 731 in real time according to the current position. When five seconds have passed, the micro motor 722 is started, and its output end drives the cam 761 to rotate clockwise, thereby pushing the rotating wheel and the connecting frame 756 away from the trigger plate 754. Then, during the process of starting the micro motor 722, the user drives the trigger rod 758 to swing up and down during running, but the trigger rod 758 will not contact the trigger plate 754, thereby avoiding driving the driving screw 7 The second rotating shaft 729 is driven by the first bevel gear 723, the second bevel gear 726, the pulley 741 and the transmission belt 728, thereby driving the driving plate 729 to rotate eccentrically. Under the cooperation of the driving groove and the driving lever 736, the second sliding block 739 is driven to slide back and forth once along the second sliding frame 737, thereby driving the driving hammer 740 to descend and then rise. The distance the driving hammer 740 descends depends on the position of the first sliding block 735. The faster the user runs, the longer the driving hammer 740 descends, the longer the tightening block 714 descends, and the longer the first trapezoidal block 711 descends, and the longer the distance the two second trapezoidal blocks 712 move synchronously to the opposite side.The tightness of the three elastic bands 2 is increased, and vice versa, the slower the user's running speed, the tightness of the three elastic bands 2 is reduced accordingly;

[0042] When the second sliding block 739 is lowered, the toggle rod 773 is lowered and contacts the side end of the swing rod 771, so that the toggle rod 773 is squeezed and retracted into the interior of the telescopic box 772, so that the driving hammer 740 can be smoothly lowered. When the driving hammer 740 rises and resets, the top of the toggle rod 773 contacts the end of the swing rod 771, driving the swing rod 771 to flip to one side, thereby driving the ratchet rod 752 to disengage from the ratchet wheel 751. In this process, the driving screw rod 732 is reversed under the action of the coil spring 733, thereby driving the first sliding block 735 to return to the original position. When the cam 761 is in the initial position, the toggle rod 773 is disengaged from the swing rod 771, the swing rod 771 and the ratchet rod 752 are reset, and the cam 761 stops rotating after one circle, and the trigger rod 758 is reset, so as to facilitate the adjustment of the position of the first sliding block 735 within the next five-second cycle, and then adjust the tension of the elastic strap 2. Combining the above operations, the wearing tightness between the test equipment and the user's head can be adjusted in real time according to the user's running speed, thereby achieving a balance between wearing comfort and head fit.

[0043] In this embodiment, Figure 11 As shown, it also includes a strap sweat-wicking component 8. The elastic straps 2 located at the left and right ends of the adjustment box 4 are each provided with a strap sweat-wicking component 8. The strap sweat-wicking component 8 includes a sweat-absorbing sponge 81, a sweat-wicking flexible duct 82 and a sweat-wicking port 83. The interior of the elastic strap 2 is hollow and provided with a long strip of sweat-absorbing sponge 81. The two ends of the sweat-absorbing sponge 81 are connected to the two ends of the interior of the elastic strap 2. The interior of the elastic strap 2 is provided with a cavity connected to the area where the sweat-absorbing sponge 81 is provided in the lower area of the sweat-absorbing sponge 81. The interior of the cavity is horizontally provided with a sweat-wicking flexible duct 82 that does not absorb sweat. The bottom end of the elastic strap 2 away from the respiratory separation test mask 1 is provided with a sweat-wicking port 83, and one end of the sweat-wicking port 83 is connected to one end of the sweat-wicking flexible duct 82.

[0044] As the user wears the respiratory separation test mask 1 for a long time and exercises, the user's sweat will accumulate on the elastic strap 2, affecting the user's wearing comfort. By arranging a sweat-absorbing sponge 81 inside the elastic strap 2, the sweat generated by the user's head will be absorbed into the sweat-absorbing sponge 81. As the user's running speed changes, the tension of the elastic strap 2 will change, and then the elasticity of the elastic strap 2 will be used to squeeze the sweat-absorbing sponge 81, and the sweat will fall on the sweat-discharging flexible duct 82. Since the elastic strap 2 has a certain inclination when worn, the sweat on the sweat-discharging flexible duct 82 will slide downward and be discharged to the outside of the elastic strap 2 through the sweat-discharging port 83, thereby improving the sweat-absorbing efficiency of the sweat-absorbing sponge 81, thereby ensuring the dryness of the elastic strap 2 to a certain extent, and thus improving the user's wearing comfort.

[0045] The method of use and advantages of the present invention: The method of use of the respiratory gas separation device for exercise cardiopulmonary testing, the working process is as follows:

[0046] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 As shown:

[0047] S1: When using the device, first, connect the buckle 3 of the elastic strap 2 at the top of the respiratory separation test mask 1 to the first plug 5 at the top of the adjustment box 4, then fit the adjustment box 4 to the back of the user's head. The fitting surface of the adjustment box 4 and the back of the head is provided with a flexible breathable layer to improve wearing comfort. Then, stretch the elastic straps 2 on both sides of the respiratory separation test mask 1 to both sides of the face and fit them to the face. Stretch the elastic straps 2 to the position behind the ears and connect the buckles 3 at the ends of the two elastic straps 2 to the two second plugs 6 on both sides of the adjustment box 4. The respiratory separation test mask 1 covers the user's mouth and nose, thereby completing the wearing of the respiratory separation test mask 1.

[0048] S2: During running, as the user's running speed increases or slows down, the tension of the three elastic straps 2 is adjusted in real time according to the change of the user's running frequency with the cooperation of the real-time tightening device 7. The faster the running speed, the stronger the tension, and the slower the running speed, the weaker the tension, so that the tightening degree of the elastic straps 2 is matched with the running speed, thereby ensuring that the breathing separation test mask 1 is always in a relatively tight fit with the user's mouth and nose while ensuring wearing comfort.

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A respiratory gas separation device for an exercise cardiopulmonary test, comprising a respiratory gas separation test mask (1), wherein the top and left and right ends of the respiratory gas separation test mask (1) are provided with elastic straps (2) for helping the respiratory gas separation test mask (1) to be fixed to the user's head, and each end of the elastic strap (2) not connected to the respiratory gas separation test mask (1) is provided with a buckle (3); It is characterized in that The invention also comprises an adjusting box (4), wherein a first plug (5) is vertically provided on the top of the adjusting box (4), and the first plug (5) is slidably connected to the top of the adjusting box (4) in a vertical direction; two second plugs (6) are symmetrically and horizontally provided on the left and right ends of the adjusting box (4), and the two second plugs (6) are slidably connected to the left and right ends of the adjusting box (4) respectively; and a real-time tightening device (7) is provided inside the adjusting box (4).

2. The respiratory gas separation device for cardiopulmonary exercise testing according to claim 1, characterized in that: The real-time tightening device (7) is connected to the first plug (5) and the two second plugs (6) respectively, and the three buckles (3) are detachably connected to the plug ends of the first plug (5) and the two second plugs (6) at corresponding positions respectively. The real-time tightening device (7) comprises a tightening assembly (71), and the tightening assembly (71) is arranged on a side of the adjustment box (4) close to the first plug (5). One side of the tightening assembly (71) is provided with a real-time adjustment assembly (72) for adjusting the tension of the elastic band (2), and one side of the real-time adjustment assembly (72) is provided with a tension strength adjustment assembly (75) for adjusting the tension strength of the elastic band (2) each time. One side of the tension strength adjustment assembly (75) is provided with a distance assembly (76), and the other side of the real-time adjustment assembly (72) is provided with a reset assembly (77).

3. The respiratory gas separation device for cardiopulmonary exercise testing according to claim 2, characterized in that: The tightening assembly (71) comprises a first trapezoidal block (711), a second trapezoidal block (712), a damping telescopic rod (713) and a tightening block (714). The first trapezoidal block (711) is arranged on one side of the interior of the regulating box (4) and is connected to the regulating box (4) in an upward and downward sliding manner. A plurality of damping telescopic rods (713) are provided. A plurality of damping telescopic rods (713) are vertically provided between the bottom of the first trapezoidal block (711) and the bottom of the regulating box (4). The inclined surfaces on both sides of the first trapezoidal block (711) are symmetrically arranged. Two second trapezoidal blocks (712) are provided. The two second trapezoidal blocks (712) are symmetrically arranged on both sides of the first trapezoidal block (711). Both the two second trapezoidal blocks (712) are connected to the side ends of the interior of the regulating box (4) in a horizontal sliding direction. The second trapezoidal block (712) is provided with an inclined surface on a side close to the first trapezoidal block (711), and the first trapezoidal block (711) and the second trapezoidal block (712) are connected in an oblique sliding manner through the inclined surface. When the first trapezoidal block (711) descends, the two second trapezoidal blocks (712) simultaneously slide toward the opposite side. A damping telescopic rod (713) is horizontally provided between an end of each second trapezoidal block (712) away from the first trapezoidal block (711) and a side end of the adjustment box (4). A tightening block (714) is provided at the lower end of one side of the first trapezoidal block (711). The top of the first trapezoidal block (711) is connected to the bottom of the first plug (5), and the tops of the two second trapezoidal blocks (712) are respectively connected to the side ends of the two second plugs (6).

4. The respiratory gas separation device for cardiopulmonary exercise testing according to claim 3, characterized in that: The real-time adjustment component (72) includes a mounting box (721), the mounting box (721) is arranged on one side of the interior of the adjustment box (4), a micro motor (722) is provided on one side of the interior of the mounting box (721), a first bevel gear (723) is provided on the output end of the micro motor (722), a first mounting frame (724) is provided on one side of the micro motor (722), a first rotating shaft (725) is rotatably provided on the upper part of the first mounting frame (724), a second bevel gear (726) is provided at one end of the first rotating shaft (725), the second bevel gear (726) is meshed with the first bevel gear (723), one end of the first rotating shaft (725) passes through the side end of the mounting box (721) and is located inside the adjustment box (4), and the first rotating shaft (725) is in contact with the side end of the mounting box (721). The end is rotatably connected, a second mounting frame (727) is provided on one side of the interior of the regulating box (4), and a second rotating shaft is rotatably provided on the upper part of the second mounting frame (727), and a pulley (741) is provided at the end of the second rotating shaft and the first rotating shaft (725), and a transmission belt (728) is sleeved on the two pulleys (741), and a driving disk (729) is provided at one end of the second rotating shaft away from the pulley (741), and the driving disk (729) is eccentrically connected to the end of the second rotating shaft, and a circle of driving grooves is provided on the inner side of the driving disk (729), and a driving frame (730) is provided on one side of the second mounting frame (727), and the top of the driving frame (730) is slidably connected to the first sliding frame (731) in the horizontal direction, and the top of the driving frame (730) is horizontally and rotatably provided with a driving screw (732).

5. The respiratory gas separation device for cardiopulmonary exercise testing according to claim 4, characterized in that: The driving screw rod (732) passes through the bottom of the first sliding frame (731) and is threadedly connected thereto. Coil springs (733) are provided at the two ends of the driving screw rod (732) and the two ends of the top of the driving frame (730) for rotation connection. One end of the driving screw rod (732) is provided with a rotating disk (734). The outer side of the rotating disk (734) is provided with a circle of anti-slip grooves. The first sliding frame (731) is slidably connected to the first sliding block (735) in the vertical direction. A driving lever (736) is provided on one side of the first sliding frame (731). One end of the driving lever (736) is movably connected to the driving groove on the inner side of the driving disk (729). The side end of the driving lever (736) is provided with a sliding groove. The side end of the first sliding block (735) is rotatably provided with a connecting piece and the connecting piece is provided on the driving lever ( The second sliding frame (737) is vertically provided on the side of the upper end of the driving frame (730) away from the driving disk (729), and the end of the driving lever (736) away from the driving disk (729) is provided with a first connecting rod (738). The top of the first connecting rod (738) is rotatably connected to one end of the driving lever (736). A second sliding block (739) is slidably connected to the second sliding frame (737) in a vertical direction. One side of the second sliding block (739) is rotatably connected to the other end of the first connecting rod (738). A driving hammer (740) is provided on the side end of the second sliding block (739). The driving hammer (740) is located below the first connecting rod (738) and is located directly above the tightening block (714).

6. The respiratory gas separation device for cardiopulmonary exercise testing according to claim 5, characterized in that: The tensioning strength adjustment component (75) includes a ratchet (751), which is arranged on one end of the driving screw (732). A ratchet rod (752) is rotatably arranged on one side of the top of the driving frame (730). A first spring (753) is provided between the top of the ratchet rod (752) and the top of the driving frame (730). One end of the ratchet rod (752) is embedded in one of the ratchet grooves on the ratchet (751), and the ratchet (751) is restricted from rotating clockwise by the ratchet rod (752). A trigger plate (754) is provided inside the mounting box (721). One side of the trigger plate (754) passes through the side end of the mounting box (721) and is horizontally slidably connected thereto. One end of the trigger plate (754) is located on one side of the rotating disk (734) and does not contact it. The bottom of one side of the trigger plate (754) is at the same level as the top of the rotating disk (734). A second spring (755) is provided between the trigger plate (754) and the side adjacent to the inside of the installation box (721). A connecting frame (756) is provided inside the installation box (721). The connecting frame (756) is located on one side of the trigger plate (754) and is horizontally slidably connected to the bottom of the installation box (721). A third spring (757) is provided between the connecting frame (756) and the inner wall of the installation box (721). A trigger rod (758) is provided at the upper end of the connecting frame (756). One end of the trigger rod (758) is rotatably connected to the upper end of the connecting frame (756). The end of the trigger rod (758) adjacent to the trigger plate (754) is arranged in an arc surface. When the third spring (757) is in a relaxed state and the trigger rod (758) is in a horizontal state, the trigger rod (758) squeezes the trigger plate (754) to drive the trigger plate (754) to slide toward the outside of the installation box (721).

7. The respiratory gas separation device for cardiopulmonary exercise testing according to claim 6, characterized in that: The distance component (76) includes a cam (761), a driving wheel (762) and a connecting rod (763). The cam (761) is eccentrically arranged at the output end of the micro motor (722). The connecting rod (763) is arranged at the side end of the connecting frame (756). The driving wheel (762) is rotatably arranged on the end of the connecting rod (763) close to the cam (761). The outer side of the driving wheel (762) contacts the outer side of the cam (761). When the cam (761) rotates one circle clockwise, it drives the driving wheel (762) to first move away from the micro motor (722) and then approach the micro motor (722).

8. The respiratory gas separation device for cardiopulmonary exercise testing according to claim 7, characterized in that: The reset assembly (77) includes a swing rod (771), a telescopic box (772), a toggle rod (773) and a fourth spring (774). The swing rod (771) is horizontally arranged and one end of the swing rod (771) is connected to the rotation connection between the ratchet rod (752) and the driving frame (730). The first connecting rod (738) is horizontally arranged with a telescopic box (772) on one side close to the swing rod (771). The side end of the telescopic box (772) is horizontally provided with a fourth spring (774). One end of the toggle rod (773) passes through the side end of the telescopic box (772) and is slidably connected to the telescopic box (772) in a horizontal direction. The side end of the toggle rod (773) is connected to one end of the fourth spring (774), and an inclined surface is provided at one end of the toggle rod (773) close to the swing rod (771). The end of the swing rod (771) close to the toggle rod (773) is arranged in an arc shape. The toggle rod (773) is located directly above the swing rod (771), and the top of the toggle rod (773) is arranged in a plane. When the toggle rod (773) descends and contacts one end of the swing rod (771), the inclined surface of the side end of the toggle rod (773) and the arc surface of the side end of the swing rod (771) are squeezed to drive the toggle rod (773) to slide into the inside of the telescopic box (772).

9. The respiratory gas separation device for cardiopulmonary exercise testing according to claim 8, characterized in that: The invention also includes a band sweat-discharging assembly (8), wherein each of the elastic bands (2) located at the left and right ends of the adjustment box (4) is provided with a band sweat-discharging assembly (8), the band sweat-discharging assembly (8) includes a sweat-absorbing sponge (81), a sweat-discharging flexible conduit (82) and a sweat-discharging port (83), the interior of the elastic band (2) is hollow and provided with a long strip of sweat-absorbing sponge (81), the two ends of the sweat-absorbing sponge (81) are connected to the two ends of the interior of the elastic band (2), the interior of the elastic band (2) is provided with a cavity in communication with the area where the sweat-absorbing sponge (81) is provided, the interior of the elastic band (2) is located below the sweat-absorbing sponge (81), a sweat-discharging flexible conduit (82) that does not absorb sweat is horizontally provided, the bottom of the elastic band (2) is provided with a sweat-discharging port (83) at one end away from the respiratory separation test mask (1), and one end of the sweat-discharging port (83) is in communication with one end of the sweat-discharging flexible conduit (82).

10. A method for using a respiratory gas separation device for exercise cardiopulmonary testing, characterized in that: Using the respiratory gas separation device for cardiopulmonary exercise testing according to any one of claims 1 to 9 comprises the following steps: S1: When the device is used, first, the buckle (3) of the elastic strap (2) at the top of the respiratory separation test mask (1) is plugged into the first plug (5) at the top of the adjustment box (4), and then the adjustment box (4) is fitted to the back of the user's head. The fitting surface of the adjustment box (4) and the back of the head is provided with a flexible breathable layer to improve wearing comfort. Then, the elastic straps (2) on both sides of the respiratory separation test mask (1) are stretched to both sides of the face and fit with the face. The elastic straps (2) are stretched to the position behind the ears and the buckles (3) at the ends of the two elastic straps (2) are plugged into the two second plugs (6) on both sides of the adjustment box (4). The respiratory separation test mask (1) covers the mouth and nose of the user, and then the wearing of the respiratory separation test mask (1) is completed. S2: During the running process, as the user's running speed increases or decreases, the tension of the three elastic straps (2) is adjusted in real time in cooperation with the real-time tightening device (7) according to the change of the user's running frequency. The faster the running speed, the stronger the tension, and the slower the running speed, the weaker the tension, so that the tension of the elastic straps (2) matches the running speed, thereby ensuring that the breathing separation test mask (1) is always in a relatively tight fit with the user's mouth and nose while ensuring wearing comfort.

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