Device for detecting sealing performance of anesthesia respirator pipeline

Abstract

The invention belongs to the technical field of breathing machine detection, and particularly relates to a device for detecting the sealing performance of an anesthesia breathing machine pipeline. Comprising a bottom plate, two parallel sliding rails are fixedly arranged on the bottom plate, the two ends of each sliding rail are fixedly connected with a first fixing base and a second fixing base correspondingly, a first pipe end fixing mechanism is fixedly installed on each first fixing base, and an installation platform is arranged on the side, away from the sliding rails, of each first pipe end fixing mechanism; an inflation and pressure control mechanism is arranged at the top end of the mounting platform, a first sliding seat and a second sliding seat are slidably mounted on the sliding rail, the second sliding seat is located between the first fixing seat and the first sliding seat, and a scanning detection mechanism is fixedly mounted at the top end of the second sliding seat and used for conducting scanning detection on a pipeline. And a second pipe end fixing mechanism is fixedly mounted on the first sliding seat. According to the invention, non-contact scanning can be carried out on the pipeline through the scanning detection mechanism, so that the leakage position of the pipeline can be quickly and accurately determined, and the detection efficiency and accuracy are improved.

Description

Technical Field

[0001] This invention belongs to the field of ventilator testing technology, specifically relating to a device for testing the sealing performance of tubing in anesthesia ventilators. Background Technology

[0002] Anesthesia ventilators are critical equipment for maintaining patients' lives during surgery, and the airtightness of their tubing directly affects the anesthetic effect and patient safety. Traditional methods for testing tubing airtightness mainly include: Positive pressure holding method: Inflate the pipeline with air and monitor the rate of pressure drop. This method can determine if a leak exists, but it cannot pinpoint the exact leak point, and is particularly inefficient for micro-leaks or leaks in multiple locations.

[0003] Soap application method: Apply soap solution to the suspected area and observe the formation of bubbles. Although this method can pinpoint the location, it is inefficient, contaminates pipes, is cumbersome, and is not suitable for electrical components or internal structures.

[0004] Therefore, there is an urgent need to design a device for detecting the sealing of anesthesia ventilator tubing that can quickly, accurately, non-contactly, and directly locate leaks. Summary of the Invention

[0005] To address the problems existing in the prior art, the present invention provides a device for detecting the sealing performance of anesthesia ventilator tubing, and specifically discloses the following technical solution: A device for testing the sealing performance of anesthesia ventilator tubing includes a base plate. Two parallel slide rails are fixedly mounted on the upper surface of the base plate. A first fixing seat and a second fixing seat are fixedly connected to the two ends of the slide rails, respectively. A first tube end fixing mechanism is fixedly mounted on the first fixing seat for fixing one end of the ventilator tubing. An installation platform is provided on the side of the first tube end fixing mechanism away from the slide rails. An inflation and pressure control mechanism is provided at the top of the installation platform for inflating the ventilator tubing. A first slide block and a second slide block are slidably mounted on the slide rails. The second slide block is located between the first fixing seat and the first slide block. A scanning detection mechanism covering the outside of the tubing is fixedly mounted at the top of the second slide block for scanning and detecting the tubing. A second tube end fixing mechanism is fixedly mounted on the first slide block for fixing the other end of the ventilator tubing. A driving mechanism for driving the second slide block to slide is also provided on the upper surface of the base plate.

[0006] Furthermore, a tightening bolt is installed on the first slide block, and the first slide block is fixed relative to the two slide rails by the tightening bolt.

[0007] Furthermore, the first pipe end fixing mechanism includes a first support block, which is fixedly connected to the top of the first fixing seat. A first support cylinder is fixedly connected to the top of the first support block. A first sealing plate is provided at the end of the first support cylinder away from the second pipe end fixing mechanism. A first inner support seat is fixedly connected to the center position of the end face of the first sealing plate near the second pipe end fixing mechanism. A plurality of first adjusting screws are evenly arranged circumferentially on the side wall of the first support cylinder. Each first adjusting screw penetrates the side wall of the first support cylinder and is threadedly connected to the side wall of the first support cylinder. A first screw head is fixedly connected to the end of each first adjusting screw located outside the first support cylinder. A first screw head is fixedly connected to the end of each first adjusting screw located inside the first support cylinder. The moving connection has an arc-shaped first clamping plate, the end face of which contacts the end face of the first sealing plate. A first support column is fixedly connected to the end face of the first inner support seat. A first inflation sealing mechanism is fixedly connected to the external end of the first support column away from the first inner support seat. A first gas pipeline and a second gas pipeline are provided inside the first support column. The outlet end of the first gas pipeline is located on the end face of the first support column. The outlet end of the second gas pipeline is connected to the first inflation sealing mechanism. The inlet end of the first gas pipeline passes through the first inner support seat and the first sealing plate in sequence and is connected to the inflation and pressure control mechanism. The inlet end of the second gas pipeline passes through the first inner support seat and the first sealing plate in sequence and is connected to the second air pump fixed on the mounting platform.

[0008] Furthermore, the first inflatable sealing mechanism includes a plurality of first annular support plates, which are spaced apart on the outer wall of the first support column. A first sealing airbag is fixedly connected between adjacent first annular support plates, and the plurality of first sealing airbags are respectively connected to the outlet end of the second gas pipeline through branch pipes.

[0009] Furthermore, the inflation and pressure control mechanism includes a first air pump and an electronic pressure gauge fixed on the mounting platform. The inlet end of the first gas pipeline is connected in sequence to the electronic pressure gauge and the outlet of the first air pump. The inlet of the first air pump is connected to a helium storage tank through a pipeline.

[0010] Furthermore, the second pipe end fixing mechanism includes a second support block, which is fixedly connected to the top of the first slide block. A second support cylinder is fixedly connected to the top of the second support block. A second closing plate is provided at the end of the second support cylinder away from the first pipe end fixing mechanism. A second inner support seat is fixedly connected to the center position of the end face of the second closing plate near the end of the first pipe end fixing mechanism. A plurality of second adjusting screws are evenly arranged circumferentially on the side wall of the second support cylinder. Each second adjusting screw penetrates the side wall of the second support cylinder and is threadedly connected to the side wall of the second support cylinder. A second screw head is fixedly connected to the end of each second adjusting screw located outside the second support cylinder. The second adjusting screw is rotatably connected to an arc-shaped second pressing plate at one end inside the second support cylinder. The end face of the second pressing plate contacts the end face of the second sealing plate. A second support column is fixedly connected to the end face of the second inner support seat. A second inflation sealing mechanism is fixedly connected to the outside of the end of the second support column away from the second inner support seat. The structure of the second inflation sealing mechanism is the same as that of the first inflation sealing mechanism. A third gas pipeline is provided inside the second support column. The outlet end of the third gas pipeline is connected to the second inflation sealing mechanism. The inlet end of the third gas pipeline passes through the second inner support seat and the second sealing plate in sequence and is connected to a third air pump fixed on the second sealing plate.

[0011] Furthermore, the scanning detection mechanism includes a third support block, which is fixedly connected to the top of the second slide. An annular mounting base is fixedly connected to the top of the third support block. An annular mounting cavity is formed on the inner side of the annular mounting base. An annular external gear is rotatably mounted in the annular mounting cavity. A plurality of gas concentration detectors are evenly arranged circumferentially on the inner side of the annular external gear. A first drive motor is fixedly mounted on one side of the top of the annular mounting base. A drive gear is fixedly connected to the output end of the first drive motor. An opening communicating with the annular mounting cavity is formed on the top of the annular mounting base. The drive gear passes through the opening and meshes with the annular external gear. The drive mechanism is connected to the third support block in a transmission manner.

[0012] Furthermore, the driving mechanism includes a second driving motor, which is fixed on the second fixed base. A lead screw is fixedly connected to the output end of the second driving motor. The other end of the lead screw is rotatably connected to the first support block. A through hole is provided on the second support block for the lead screw to pass through. The third support block is sleeved on the lead screw and threadedly connected to the lead screw.

[0013] Furthermore, it also includes a PLC controller, which is mounted on the second fixed base. The first air pump, the second air pump, the electronic pressure gauge, the third air pump, the first drive motor, the second drive motor, and the gas concentration detector are all electrically connected to the PLC controller.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: In this invention, a scanning detection mechanism can perform non-contact scanning of pipelines, thereby quickly and accurately determining the location of pipeline leaks, thus improving the efficiency and accuracy of detection.

[0015] In this invention, helium gas is introduced into the pipeline through an inflation and pressure control mechanism, thus preventing contamination of the pipeline. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is a structural schematic diagram from another perspective of the present invention.

[0018] Figure 3 This is a schematic diagram of the structure of the first pipe end fixing mechanism in this invention.

[0019] Figure 4 This is a schematic diagram of the second pipe end fixing mechanism in this invention.

[0020] Figure 5 This is a schematic diagram of the scanning and detection mechanism in this invention.

[0021] Figure 6 This is a side view of the scanning and detection mechanism in this invention.

[0022] Figure 7 for Figure 6 Sectional view at point AA.

[0023] 1-Base plate, 2-Slide rail, 3-First fixed seat, 4-Second fixed seat, 5-First slide block, 6-Second slide block, 7-First pipe end fixing mechanism, 71-First support block, 72-First support cylinder, 73-First inner support seat, 74-First adjusting screw, 75-First screw head, 76-First pressing plate, 77-First support column, 78-First inflation sealing mechanism, 781-First annular support plate, 782-First sealing airbag, 8-Second pipe end fixing mechanism, 81-Second support block, 82-Second support cylinder, 83-Second inner support seat, 84-Second adjusting screw 85-Second screw head, 86-Second clamping plate, 87-Second support column, 88-Second inflation sealing mechanism, 9-Scanning detection mechanism, 91-Third support block, 92-Annular mounting seat, 93-Annular external gear, 94-Gas concentration detector, 95-First drive motor, 96-Drive gear, 10-Mounting platform, 11-Tightening bolt, 12-First gas pipeline, 13-Second gas pipeline, 14-First air pump, 15-Electronic pressure gauge, 16-Second air pump, 17-Third air pump, 18-Solenoid valve, 19-Second drive motor, 20-Lead screw. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Reference Figure 1-7 A device for testing the sealing performance of anesthesia ventilator tubing includes a base plate 1. Two parallel slide rails 2 are fixedly mounted on the upper surface of the base plate 1. A first fixing seat 3 and a second fixing seat 4 are fixedly connected to the two ends of the slide rails 2, respectively. A first tube end fixing mechanism 7 is fixedly mounted on the first fixing seat 3 for fixing one end of the ventilator tubing. An installation platform 10 is provided on the side of the first tube end fixing mechanism 7 away from the slide rails 2. The installation platform 10 is fixed on the base plate 1. An inflation and pressure control mechanism is provided at the top of the installation platform 10 for inflating the ventilator tubing. A first slide seat 5 and a second slide seat 6 are slidably mounted on the slide rails 2. The second slide seat 6 is located between the first fixing seat 3 and the first slide seat 5. A scanning detection mechanism 9, which covers the outside of the tubing, is fixedly mounted at the top of the second slide seat 6 for scanning and detecting the tubing. A second tube end fixing mechanism 8 is fixedly mounted on the first slide seat 5 for fixing the other end of the ventilator tubing. A driving mechanism for driving the second slide seat 6 to slide is also provided on the upper surface of the base plate 1.

[0026] In this embodiment, a tightening bolt 11 is installed on the first slide block 5, and the first slide block 5 is fixed relative to the two slide rails 2 by the tightening bolt 11. By sliding the first slide block 5, the distance between the first tube end fixing mechanism 7 and the second tube end fixing mechanism 8 can be adjusted to accommodate the fixing of ventilator tubing of different lengths. After adjustment, the position of the first slide block 5 is fixed by the tightening bolt 11 to prevent it from sliding accidentally during the testing process.

[0027] In this embodiment, the first pipe end fixing mechanism 7 includes a first support block 71, which is fixedly connected to the top of the first fixing seat 3. A first support cylinder 72 is fixedly connected to the top of the first support block 71. A first sealing plate is provided at the end of the first support cylinder 72 away from the second pipe end fixing mechanism 8. A first inner support seat 73 is fixedly connected to the center of the end face of the first sealing plate near the end face of the second pipe end fixing mechanism 8. A plurality of first adjusting screws 74 are evenly arranged circumferentially on the side wall of the first support cylinder 72. Each first adjusting screw 74 penetrates the side wall of the first support cylinder 72 and is threadedly connected to the side wall of the first support cylinder 72. A first screw head 75 is fixedly connected to the end of each first adjusting screw 74 outside the first support cylinder 72. The end of each first adjusting screw 74 inside the first support cylinder 72 is rotatably connected to... There is an arc-shaped first pressing plate 76, the end face of which contacts the end face of the first sealing plate. A first support column 77 is fixedly connected to the end face of the first inner support seat 73. A first inflation sealing mechanism 78 is fixedly connected to the end of the first support column 77 away from the first inner support seat 73. A first gas pipeline 12 and a second gas pipeline 13 are provided inside the first support column 77. The outlet end of the first gas pipeline 12 is located on the end face of the first support column 77. The outlet end of the second gas pipeline 13 is connected to the first inflation sealing mechanism 78. The inlet end of the first gas pipeline 12 passes through the first inner support seat 73 and the first sealing plate in sequence and is connected to the inflation and pressure control mechanism. The inlet end of the second gas pipeline 13 passes through the first inner support seat 73 and the first sealing plate in sequence and is connected to the second air pump 16 fixed on the mounting platform 10.

[0028] In this embodiment, the first inflation sealing mechanism 78 includes a plurality of first annular support plates 781, which are spaced apart on the outer wall of the first support column 77. A first sealing airbag 782 is fixedly connected between adjacent first annular support plates 781, and the plurality of first sealing airbags 782 are respectively connected to the outlet end of the second gas pipeline 13 through branch pipes.

[0029] In this embodiment, the inflation and pressure control mechanism includes a first air pump 14 and an electronic pressure gauge 15 fixed on the mounting platform 10. The inlet end of the first gas pipeline 12 is connected to the outlet of the electronic pressure gauge 15 and the first air pump 14 in sequence. The inlet of the first air pump 14 is connected to the helium storage tank through a pipeline.

[0030] In this embodiment, solenoid valves 18 are respectively connected to the first gas pipeline 12 and the second gas pipeline 13, and the solenoid valve on the first gas pipeline 12 is installed between the first gas pump 14 and the electronic pressure gauge 15.

[0031] In this embodiment, the second pipe end fixing mechanism 8 includes a second support block 81, which is fixedly connected to the top of the first slide block 5. A second support cylinder 82 is fixedly connected to the top of the second support block 81. A second sealing plate is provided at the end of the second support cylinder 82 away from the first pipe end fixing mechanism 7. A second inner support seat 83 is fixedly connected to the center of the end face of the second sealing plate near the end face of the first pipe end fixing mechanism 7. A plurality of second adjusting screws 84 are evenly arranged circumferentially on the side wall of the second support cylinder 82. Each second adjusting screw 84 penetrates the side wall of the second support cylinder 82 and is threadedly connected to the side wall of the second support cylinder 82. A second screw head 85 is fixedly connected to the end of each second adjusting screw 84 located outside the second support cylinder 82. One end of 84 located inside the second support cylinder 82 is rotatably connected to an arc-shaped second pressing plate 86. The end face of the second pressing plate 86 is in contact with the end face of the second sealing plate. A second support column 87 is fixedly connected to the end face of the second inner support seat 83. A second inflation sealing mechanism 88 is fixedly connected to the outside of the end of the second support column 87 away from the second inner support seat 83. The structure of the second inflation sealing mechanism 88 is the same as that of the first inflation sealing mechanism 78. A third gas pipeline is provided inside the second support column 87. The outlet end of the third gas pipeline is connected to the second inflation sealing mechanism 88. The inlet end of the third gas pipeline passes through the second inner support seat 83 and the second sealing plate in sequence and is connected to the third air pump 17 fixed on the second sealing plate. A solenoid valve is connected to the third gas pipeline.

[0032] Before inspecting the ventilator tubing, both ends of the tubing need to be secured. First, place one end of the tubing onto the first inner support 73 and the other end onto the second inner support 83. At this point, the first inflation sealing mechanism 78 and the second inflation sealing mechanism 88 are located inside the two ends of the tubing, respectively. Then, rotate the first adjusting screw 74 and the second adjusting screw 84 to press and fix the tubing onto the corresponding inner support via the first clamping plate 76 and the second clamping plate 86. Then, adjust the position of the first sliding block 5 appropriately to straighten the tubing, and then tighten it by pressing. Bolt 11 fixes the position of the first slide block 5. After fixing, the second air pump 16 and the third air pump 17 are turned on, so that air is injected into the first inflation sealing mechanism 78 and the second inflation sealing mechanism 88 through the second gas pipeline 13 and the third gas pipeline respectively. This causes the sealing airbags of the first inflation sealing mechanism 78 and the second inflation sealing mechanism 88 to expand and fit tightly against the inner wall of the pipeline, so as to achieve a seal at both ends of the pipeline. After inflation is completed, the solenoid valve 18 on the second gas pipeline 13 and the third gas pipeline is closed, and then the leakage detection operation can be performed.

[0033] In this embodiment, the scanning detection mechanism 9 includes a third support block 91, which is fixedly connected to the top of the second slide block 6. An annular mounting base 92 is fixedly connected to the top of the third support block 91. An annular mounting cavity is opened on the inner side of the annular mounting base 92. An annular external gear 93 is rotatably installed in the annular mounting cavity. A plurality of gas concentration detectors 94 are evenly arranged circumferentially on the inner side of the annular external gear 93. A first drive motor 95 is fixedly installed on one side of the top of the annular mounting base 92. A drive gear 96 is fixedly connected to the output end of the first drive motor 95. An opening communicating with the annular mounting cavity is opened at the top of the annular mounting base 92. The drive gear 96 passes through the opening and meshes with the annular external gear 93. The drive mechanism is connected to the third support block 91 in a transmission manner.

[0034] In this embodiment, the driving mechanism includes a second driving motor 19, which is fixed on a second fixed base 4. The output end of the second driving motor 19 is fixedly connected to a lead screw 20, and the other end of the lead screw 20 is rotatably connected to a first support block 71. A through hole is provided on the second support block 81 for the lead screw 20 to pass through. A third support block 91 is sleeved on the lead screw 20 and threadedly connected to the lead screw 20.

[0035] In this embodiment, a PLC controller is also included. The PLC controller is installed on the second fixed base 4. The first air pump 14, the second air pump 16, the electronic pressure gauge 15, the third air pump 17, the first drive motor 95, the second drive motor 19, and the gas concentration detector 94 are all electrically connected to the PLC controller.

[0036] After fixing and sealing both ends of the pipeline, the pipeline's sealing performance can be tested. During testing, helium is first pumped into the pipeline using the first air pump 14 until the pressure reaches a predetermined value. Then, the solenoid valve 18 on the first air pump 14 and the first gas pipeline 12 is closed. If the reading on the electronic pressure gauge 15 remains stable, the pipeline is well-sealed. If the reading on the electronic pressure gauge 15 shows a gradual decreasing trend, it indicates a leak in the pipeline. At this point, the PLC controller receives the signal from the electronic pressure gauge 15 and controls the first drive motor 95 and the second drive motor 19 to start simultaneously. The second drive motor 19 drives the lead screw 20 to rotate, thereby driving the third... The support block 91, the second slide block 6, and the scanning detection mechanism 9 slide along the slide rail 2 as a whole, thereby causing the scanning detection mechanism 9 to move along the axial direction of the pipeline. At the same time, the first drive motor 95 drives the drive gear 96 to rotate, thereby driving the annular external gear 93 to rotate in the annular mounting seat 92. The annular external gear 93 drives several gas concentration detectors 94 to scan along the circumference of the pipeline. When a gas leak is detected at a certain point in the pipeline, the gas concentration detector 94 transmits a signal to the PLC controller. The PLC controller immediately shuts down the first drive motor 95 and the second drive motor 19, causing the scanning detection mechanism 9 to stop at the leak point. Then, the staff can mark the corresponding position on the pipeline.

[0037] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A device for testing the sealing performance of tubing in anesthesia ventilators, characterized in that, The device includes a base plate. Two parallel slide rails are fixedly mounted on the upper surface of the base plate. A first fixing seat and a second fixing seat are fixedly connected to the two ends of the slide rails, respectively. A first tube end fixing mechanism is fixedly mounted on the first fixing seat for fixing one end of the ventilator tubing. An installation platform is provided on the side of the first tube end fixing mechanism away from the slide rails. An inflation and pressure control mechanism is provided at the top of the installation platform for inflating the ventilator tubing. A first slide block and a second slide block are slidably mounted on the slide rails. The second slide block is located between the first fixing seat and the first slide block. A scanning detection mechanism covering the outside of the tubing is fixedly mounted at the top of the second slide block for scanning and detecting the tubing. A second tube end fixing mechanism is fixedly mounted on the first slide block for fixing the other end of the ventilator tubing. A drive mechanism for driving the second slide block to slide is also provided on the upper surface of the base plate.

2. The device for detecting the sealing performance of anesthesia ventilator tubing according to claim 1, characterized in that, The first slide block is equipped with a tightening bolt, and the first slide block is fixed relative to the two slide rails by the tightening bolt.

3. The device for detecting the sealing performance of anesthesia ventilator tubing according to claim 1, characterized in that, The first pipe end fixing mechanism includes a first support block, which is fixedly connected to the top of the first fixing seat. A first support cylinder is fixedly connected to the top of the first support block. A first closing plate is provided at the end of the first support cylinder away from the second pipe end fixing mechanism. A first inner support seat is fixedly connected to the center of the end face of the first closing plate near the second pipe end fixing mechanism. A plurality of first adjusting screws are evenly arranged circumferentially on the side wall of the first support cylinder. Each first adjusting screw penetrates the side wall of the first support cylinder and is threadedly connected to the side wall of the first support cylinder. A first screw head is fixedly connected to the end of each first adjusting screw outside the first support cylinder, and a first screw head is rotatably connected to the end of each first adjusting screw inside the first support cylinder. There is an arc-shaped first clamping plate, the end face of which contacts the end face of the first sealing plate. A first support column is fixedly connected to the end face of the first inner support seat. A first inflation sealing mechanism is fixedly connected to the end of the first support column away from the first inner support seat. A first gas pipeline and a second gas pipeline are provided inside the first support column. The outlet end of the first gas pipeline is located on the end face of the first support column. The outlet end of the second gas pipeline is connected to the first inflation sealing mechanism. The inlet end of the first gas pipeline passes through the first inner support seat and the first sealing plate in sequence and is connected to the inflation and pressure control mechanism. The inlet end of the second gas pipeline passes through the first inner support seat and the first sealing plate in sequence and is connected to the second air pump fixed on the mounting platform.

4. The device for detecting the sealing performance of anesthesia ventilator tubing according to claim 3, characterized in that, The first inflatable sealing mechanism includes a plurality of first annular support plates, which are spaced apart on the outer wall of the first support column. A first sealing airbag is fixedly connected between adjacent first annular support plates, and the plurality of first sealing airbags are respectively connected to the outlet end of the second gas pipeline through branch pipes.

5. The device for detecting the sealing performance of anesthesia ventilator tubing according to claim 4, characterized in that, The inflation and pressure control mechanism includes a first air pump and an electronic pressure gauge fixed on the installation platform. The inlet end of the first gas pipeline is connected in sequence to the electronic pressure gauge and the outlet of the first air pump. The inlet of the first air pump is connected to a helium storage tank through a pipeline.

6. The device for detecting the sealing performance of anesthesia ventilator tubing according to claim 5, characterized in that, The second pipe end fixing mechanism includes a second support block, which is fixedly connected to the top of the first slide. A second support cylinder is fixedly connected to the top of the second support block. A second closing plate is provided at the end of the second support cylinder away from the first pipe end fixing mechanism. A second inner support seat is fixedly connected to the center of the end face of the second closing plate near the end of the first pipe end fixing mechanism. A plurality of second adjusting screws are evenly arranged circumferentially on the side wall of the second support cylinder. Each second adjusting screw penetrates the side wall of the second support cylinder and is threadedly connected to the side wall of the second support cylinder. A second screw head is fixedly connected to the end of each second adjusting screw located outside the second support cylinder. One end of the adjusting screw located inside the second support cylinder is rotatably connected to an arc-shaped second pressing plate. The end face of the second pressing plate contacts the end face of the second sealing plate. A second support column is fixedly connected to the end face of the second inner support seat. A second inflation sealing mechanism is fixedly connected to the outside of the end of the second support column away from the second inner support seat. The structure of the second inflation sealing mechanism is the same as that of the first inflation sealing mechanism. A third gas pipeline is provided inside the second support column. The outlet end of the third gas pipeline is connected to the second inflation sealing mechanism. The inlet end of the third gas pipeline passes through the second inner support seat and the second sealing plate in sequence and is connected to a third air pump fixed on the second sealing plate.

7. The device for detecting the sealing performance of anesthesia ventilator tubing according to claim 6, characterized in that, The scanning and detection mechanism includes a third support block, which is fixedly connected to the top of the second slide. An annular mounting base is fixedly connected to the top of the third support block. An annular mounting cavity is formed on the inner side of the annular mounting base. An annular external gear is rotatably mounted in the annular mounting cavity. A plurality of gas concentration detectors are evenly arranged circumferentially on the inner side of the annular external gear. A first drive motor is fixedly mounted on one side of the top of the annular mounting base. A drive gear is fixedly connected to the output end of the first drive motor. An opening communicating with the annular mounting cavity is formed at the top of the annular mounting base. The drive gear passes through the opening and meshes with the annular external gear. The drive mechanism is connected to the third support block in a transmission manner.

8. The device for detecting the sealing performance of anesthesia ventilator tubing according to claim 7, characterized in that, The driving mechanism includes a second driving motor, which is fixed on the second fixed base. A lead screw is fixedly connected to the output end of the second driving motor. The other end of the lead screw is rotatably connected to the first support block. A through hole is provided on the second support block for the lead screw to pass through. The third support block is sleeved on the lead screw and threadedly connected to the lead screw.

9. The device for detecting the sealing performance of anesthesia ventilator tubing according to claim 8, characterized in that, It also includes a PLC controller, which is mounted on the second fixed base. The first air pump, the second air pump, the electronic pressure gauge, the third air pump, the first drive motor, the second drive motor, and the gas concentration detector are all electrically connected to the PLC controller.

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