Air leakage detection device for medical oxygen generator

Abstract

The utility model discloses an air leakage detection device for a medical oxygen generator, which comprises a box body, a box cover is arranged at the upper end of the box body, the box cover is connected with the box body through a buckle, a first air inlet pipe and a first air outlet pipe are arranged below one side of the outside of the box body, and a second air inlet pipe and a second air outlet pipe are arranged below the other side of the outside of the box body. The first gas inlet pipe corresponds to the second gas inlet pipe in position, the first gas outlet pipe corresponds to the second gas outlet pipe in position, the first gas inlet pipe, the first gas outlet pipe, the second gas inlet pipe and the second gas outlet pipe all extend into the box body, connecting pipes are arranged at the front end and the rear end in the box body, and gas flow meters are fixedly arranged at the upper ends of the connecting pipes. The structure solves the problems that a detection device is not flexible enough to use, and impurities in air are easy to interfere with detection.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen concentrator detection, in particular to a gas leakage detection device for a medical oxygen concentrator. Background Art

[0002] Leak detection devices for medical oxygen concentrators are essential tools for ensuring the safe and efficient operation of medical oxygen concentrators and related equipment. They are primarily used to monitor gas leaks within the concentrator, its connecting pipes, humidifiers, and other components. Promptly detecting and identifying leaks effectively prevents the waste of oxygen resources and potential safety hazards, ensuring patient oxygen safety and therapeutic efficacy. Leak detection devices typically detect leaks based on changes in gas flow rate, pressure, or concentration.

[0003] For example, the Chinese patent "Medical Oxygen Concentrator Leakage Self-Detection Device" with announcement number CN217237118U includes a detection device arranged on a compressor, two parallel molecular sieve towers, an atomization device and a user end. The detection device includes a conversion valve arranged at the air inlet of the two molecular sieve towers, the conversion valve is connected to the compressor through a first pipe, a first gas flow meter is provided on the first pipe, a second pipe is provided at the exhaust gas outlet of the conversion valve, a second gas flow valve is provided on the second pipe, the outlets of the two molecular sieve towers are connected to the same three-way valve through a pipe, the outlet of the three-way valve is connected to the atomization device through a third pipe, a third gas flow meter is provided on the third pipe, the conversion valve is a four-way conversion valve, the valve core of the four-way conversion valve is spherical, and two airways with a conversion angle of 90 degrees are provided in the valve core.

[0004] Although the above-mentioned existing technology can realize the leakage detection of medical oxygen concentrators, in actual use, on the one hand, the detection device is not flexible enough. Usually, a gas flow meter is set on each pipeline of the oxygen concentrator, which requires medical personnel to record the data on each gas flow meter and compare them when the oxygen concentrator is working, thereby reducing the user experience of the detection device. On the other hand, impurities in the air can easily interfere with the detection. Usually, the oxygen concentrator directly inhales air and performs leakage detection, causing impurities mixed in the air to enter the detection device, thereby affecting the accuracy of the detection data. Therefore, it does not meet the existing needs. In this regard, we propose a leakage detection device for medical oxygen concentrators. Utility Model Content

[0005] The purpose of the present utility model is to provide a gas leakage detection device for a medical oxygen concentrator, so as to solve the problems in the above-mentioned background technology that the detection device is not flexible enough to use and impurities in the air easily interfere with the detection.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a gas leakage detection device for a medical oxygen concentrator, comprising a box body, a box cover is provided at the upper end of the box body, and the box cover is connected to the box body by a snap buckle, a first air inlet pipe and a first air outlet pipe are provided at the lower part of one side of the outside of the box body, and a second air inlet pipe and a second air outlet pipe are provided at the lower part of the other side of the outside of the box body, the first air inlet pipe and the second air inlet pipe are positioned correspondingly, and the first air outlet pipe and the second air outlet pipe are positioned correspondingly, and the first air inlet pipe, the first air outlet pipe, the second air inlet pipe and the second air outlet pipe all extend into the interior of the box body, and connecting pipes are provided at the front and rear ends of the interior of the box body, and a gas flow meter is fixedly provided at the upper end of the connecting pipe.

[0007] Preferably, the first air inlet pipe, the first air outlet pipe, the second air inlet pipe and the second air outlet pipe are each provided with a filter pipe on one side of the inside of the box body, the other end of the filter pipe is connected to the connecting pipe, and flanges are fixedly provided at both ends of the filter pipe, and the filter pipe is fixedly connected to the first air inlet pipe, the first air outlet pipe, the second air inlet pipe, the second air outlet pipe and the connecting pipe through the flanges.

[0008] Preferably, three filter screens are fixedly arranged inside the filter tube, the filter screens are evenly distributed, and the mesh apertures of the filter screens close to the air inlet direction gradually decrease.

[0009] Preferably, support frames are fixedly provided on both sides of the outside of the connecting pipe, and the lower ends of the support frames are fixedly connected to the lower end of the box body.

[0010] Preferably, three air intake grilles are provided on both sides of the inside of the box cover, and the air intake grilles are of a through-type structure. Three heat dissipation grilles are provided on the upper part of the inside of the side walls on both sides of the box body, and the heat dissipation grilles are of a through-type structure. The inside of the air intake grilles and the heat dissipation grilles are both mesh structures.

[0011] Preferably, a protective cover is fixedly provided at the middle position of the upper end of the box cover, a motor is fixedly provided inside the protective cover, the output shaft of the motor extends to the bottom of the box cover, and fan blades are fixedly provided outside the output shaft of the motor located below the box cover.

[0012] Preferably, rubber pads are fixedly provided at the four corners of the lower end of the box, and display screens are fixedly provided on both sides of the front end of the box, and the two display screens are electrically connected to the two gas flow meters respectively.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model can detect whether there is an air leak in the oxygen concentrator through a gas flow meter and a display screen. When the oxygen concentrator is in the air leak detection device, the second air inlet pipe is connected to the air inlet of the oxygen concentrator, and the second air outlet pipe is connected to the air inlet of the oxygen concentrator. At this time, the air enters the connecting pipe on one side after being filtered, and the air intake volume is measured by the sensor of the gas flow meter in the connecting pipe and the data is displayed on a display screen. When the oxygen concentrator discharges oxygen, the oxygen first passes through the connecting pipe on the other side, and the air outlet volume is measured by the sensor of the gas flow meter in the connecting pipe and the data is displayed on another display screen. At this time, the medical staff compares the displayed data. If the difference is too large, it indicates that there is an air leak in the oxygen concentrator.

[0015] 2. The utility model can filter the air through the filter tube and the filter screen. When the oxygen concentrator performs a gas leakage detection device, the second air inlet pipe is connected to the air inlet of the oxygen concentrator, and the second air outlet pipe is connected to the air inlet of the oxygen concentrator. When the oxygen concentrator is working, it will draw outside air into its interior. At this time, the air first enters the interior of the box through the first air inlet pipe, and then is filtered by the filter screen inside the filter tube. At the same time, the graded filter screens can improve the air filtering effect. The produced oxygen enters the interior of the box again through the second air outlet pipe for filtration until the oxygen is discharged from the interior of the box through the first air outlet pipe, thereby avoiding interference with the detection of the gas flow meter due to impurities in the air, and at the same time improving the oxygen quality of the oxygen concentrator.

[0016] 3. The utility model can accelerate the air circulation inside the box through the motor and fan blades. When the oxygen concentrator performs a leak detection device, the motor is turned on so that the output shaft of the motor drives the fan blades to rotate. At this time, the air near the fan blades forms a negative pressure and accelerates the outside air to enter the box. At the same time, the heat generated by the electronic components inside the box will be transferred to the airflow through thermal radiation. The airflow that enters the box and absorbs heat is then discharged from the inside of the box through the heat dissipation grille. At this time, the temperature inside the box drops, thereby avoiding affecting the working efficiency of the electronic components inside the box due to high temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional diagram of the external structure of the utility model;

[0018] Figure 2 This is a front view of the internal structure of the utility model;

[0019] Figure 3 This is a side view of the internal structure of the utility model;

[0020] Figure 4 For the utility model Figure 2 A partial enlarged view of area A in the middle.

[0021] In the figure: 1. Box body; 2. First air inlet pipe; 3. First air outlet pipe; 4. Box cover; 5. Protective cover; 6. Air inlet grille; 7. Heat dissipation grille; 8. Display screen; 9. Second air inlet pipe; 10. Rubber pad; 11. Motor; 12. Fan blades; 13. Connecting pipe; 14. Filter pipe; 15. Filter screen; 16. Support frame; 17. Gas flow meter; 18. Flange; 19. Second air outlet pipe. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] See also Figure 1-4 The utility model provides an embodiment: a gas leakage detection device for a medical oxygen concentrator, comprising a box body 1, a box cover 4 is provided at the upper end of the box body 1, the box cover 4 is connected to the box body 1 by a snap buckle, a first air inlet pipe 2 and a first air outlet pipe 3 are provided at the lower part of one side of the outside of the box body 1, a second air inlet pipe 9 and a second air outlet pipe 19 are provided at the lower part of the other side of the outside of the box body 1, the first air inlet pipe 2 and the second air inlet pipe 9 correspond in position, the first air outlet pipe 3 and the second air outlet pipe 19 correspond in position, and the first air inlet pipe 2, the first air outlet pipe 3, the second air inlet pipe 9 and the second air outlet pipe 19 all extend into the interior of the box body 1, connecting pipes 13 are provided at the front and rear ends of the interior of the box body 1, and a gas flow meter 17 is fixedly provided at the upper end of the connecting pipe 13.

[0024] During use, when the oxygen concentrator performs a gas leak detection device, the second air inlet pipe 9 is connected to the air inlet of the oxygen concentrator, and the second air outlet pipe 19 is connected to the air inlet of the oxygen concentrator. At this time, the air enters the connecting pipe 13 on one side after being filtered, and the air intake volume is measured by the sensor of the gas flow meter 17 in the connecting pipe 13 and the data is displayed on a display screen 8. When the oxygen concentrator discharges oxygen, the oxygen first passes through the connecting pipe 13 on the other side, and the air outlet volume is measured by the sensor of the gas flow meter 17 in the connecting pipe 13 and the data is displayed on another display screen 8. At this time, the medical staff compares the displayed data.

[0025] See also Figure 1 and Figure 3 The first air inlet pipe 2, the first air outlet pipe 3, the second air inlet pipe 9 and the second air outlet pipe 19 are all provided with a filter pipe 14 on one side inside the box body 1. The other end of the filter pipe 14 is connected to the connecting pipe 13. Flanges 18 are fixedly provided at both ends of the filter pipe 14. The filter pipe 14 is fixedly connected to the first air inlet pipe 2, the first air outlet pipe 3, the second air inlet pipe 9, the second air outlet pipe 19 and the connecting pipe 13 through the flange 18, so that air is sucked into the box body 1 through the first air inlet pipe 2.

[0026] See also Figure 2 and Figure 4 Three filter screens 15 are fixedly arranged inside the filter tube 14. The filter screens 15 are equidistantly distributed, and the mesh apertures of the filter screens 15 close to the air inlet direction are gradually reduced, so as to facilitate filtering impurities in the air and oxygen through the filter screens 15.

[0027] See also Figure 1 and Figure 2 Support frames 16 are fixedly provided on both sides of the outside of the connecting pipe 13 , and the lower end of the support frame 16 is fixedly connected to the lower end of the box body 1 , so that the connecting pipe 13 can be fixed by the support frame 16 .

[0028] See also Figure 1 and Figure 2 Three air intake grilles 6 are provided on both sides of the inside of the box cover 4. The air intake grilles 6 are of a through-type structure. Three heat dissipation grilles 7 are provided on the upper part of the inside of the side walls on both sides of the box body 1. The heat dissipation grilles 7 are of a through-type structure, and the air intake grilles 6 and the heat dissipation grilles 7 are both mesh structures, which facilitates the discharge of the airflow that absorbs heat through the heat dissipation grilles 7.

[0029] See also Figure 2 and Figure 3 A protective cover 5 is fixedly provided at the middle position of the upper end of the box cover 4, and a motor 11 is fixedly provided inside the protective cover 5. The output shaft of the motor 11 extends to the bottom of the box cover 4. The motor 11 is located below the box cover 4 and a fan blade 12 is fixedly provided outside the output shaft, so as to accelerate the outside air to enter the interior of the box body 1 through the fan blade 12.

[0030] See also Figure 1 Rubber pads 10 are fixedly provided at the four corners of the lower end of the box body 1, and display screens 8 are fixedly provided on both sides of the front end of the box body 1. The two display screens 8 are electrically connected to the two gas flow meters 17 respectively, so that the data of the intake and exhaust volumes can be displayed through the display screens 8.

[0031] Working principle: When the oxygen concentrator is performing the air leakage detection device, the second air inlet pipe 9 is connected to the air inlet of the oxygen concentrator, and the second air outlet pipe 19 is connected to the air inlet of the oxygen concentrator. When the oxygen concentrator is working, it will draw outside air into its interior. At this time, the air first enters the interior of the box 1 through the first air inlet pipe 2, and then is filtered by the filter 15 inside the filter tube 14. At the same time, the graded filter 15 can improve the air filtering effect. The produced oxygen enters the interior of the box 1 again through the second air outlet pipe 19 for filtration until the oxygen is discharged from the interior of the box 1 through the first air outlet pipe 3. When the oxygen concentrator is performing the air leakage detection device, the motor 11 is turned on, so that the output shaft of the motor 11 drives the fan blades 12 to rotate. At this time, the air near the fan blades 12 forms a negative pressure and accelerates the outside air to enter the interior of the box 1. At the same time, the heat generated by the operation of the electronic components inside the box 1 will be transferred to the airflow through thermal radiation. The airflow that enters the interior of the box 1 and absorbs heat is then discharged from the interior of the box 1 through the heat dissipation grille 7.

[0032] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A gas leakage detection device for a medical oxygen concentrator, comprising a housing (1), characterized in that: The upper end of the box body (1) is provided with a box cover (4), and the box cover (4) is connected to the box body (1) by a buckle. A first air inlet pipe (2) and a first air outlet pipe (3) are provided below one side of the outside of the box body (1), and a second air inlet pipe (9) and a second air outlet pipe (19) are provided below the other side of the outside of the box body (1). The first air inlet pipe (2) corresponds to the second air inlet pipe (9), and the first air outlet pipe (3) corresponds to the second air outlet pipe (19). The first air inlet pipe (2), the first air outlet pipe (3), the second air inlet pipe (9) and the second air outlet pipe (19) all extend into the interior of the box body (1). Connecting pipes (13) are provided at the front and rear ends of the interior of the box body (1), and a gas flow meter (17) is fixedly provided at the upper end of the connecting pipe (13).

2. The gas leakage detection device for a medical oxygen concentrator according to claim 1, characterized in that: The first air inlet pipe (2), the first air outlet pipe (3), the second air inlet pipe (9) and the second air outlet pipe (19) are all provided with a filter pipe (14) on one side inside the box body (1); the other end of the filter pipe (14) is communicated with the connecting pipe (13); flanges (18) are fixedly provided at both ends of the filter pipe (14); the filter pipe (14) is fixedly connected to the first air inlet pipe (2), the first air outlet pipe (3), the second air inlet pipe (9), the second air outlet pipe (19) and the connecting pipe (13) via the flanges (18).

3. The gas leakage detection device for a medical oxygen concentrator according to claim 2, characterized in that: Three filter screens (15) are fixedly arranged inside the filter tube (14). The filter screens (15) are distributed at equal intervals, and the mesh apertures of the filter screens (15) close to the air inlet direction are gradually reduced.

4. The gas leakage detection device for a medical oxygen concentrator according to claim 3, characterized in that: Support frames (16) are fixedly provided on both sides of the outside of the connecting pipe (13), and the lower end of the support frame (16) is fixedly connected to the lower end of the box body (1).

5. The gas leakage detection device for a medical oxygen concentrator according to claim 4, characterized in that: Three air intake grilles (6) are provided on both sides of the interior of the box cover (4), and the air intake grilles (6) are of a through-type structure. Three heat dissipation grilles (7) are provided above the interior of the side walls on both sides of the box body (1), and the heat dissipation grilles (7) are of a through-type structure. The interiors of the air intake grilles (6) and the heat dissipation grilles (7) are both of a mesh structure.

6. The gas leakage detection device for a medical oxygen concentrator according to claim 5, characterized in that: A protective cover (5) is fixedly provided at the middle position of the upper end of the box cover (4), a motor (11) is fixedly provided inside the protective cover (5), an output shaft of the motor (11) extends to the bottom of the box cover (4), and a fan blade (12) is fixedly provided outside the output shaft of the motor (11) located below the box cover (4).

7. The gas leakage detection device for a medical oxygen concentrator according to claim 6, characterized in that: Rubber pads (10) are fixedly provided at the four corners of the lower end of the box (1), and display screens (8) are fixedly provided on both sides of the front end of the box (1). The two display screens (8) are electrically connected to two gas flow meters (17) respectively.

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