Vital capacity training equipment for respiratory medicine nursing

Abstract

The invention discloses vital capacity training equipment for respiratory medicine nursing, and relates to the field of medical equipment, the vital capacity training equipment comprises a mask, an air inlet bin is arranged in the mask, a breathable absorbent cotton piece in a wet state is arranged in the air inlet bin, a refrigeration semiconductor is further arranged in the mask, the refrigeration surface of the refrigeration semiconductor faces the outside of the mask, and the refrigeration surface of the refrigeration semiconductor faces the outside of the mask. The heating surface faces the interior of the mask, airflow entering the mask can penetrate through the absorbent cotton piece and then pass through the heating surface of the refrigeration semiconductor, one end of the corrugated pipe is connected with the mask, and the other end of the corrugated pipe is connected with an impedor. The breathable cotton piece capable of preserving moisture is arranged at the air inlet channel of the mask, the humidity of air entering the mask is increased, meanwhile, the heating face of the refrigeration semiconductor in the mask is used for heating the air entering the mask, then more comfortable air conditions are provided for a patient in dry and cold weather, and the vital capacity training quality of the patient is improved.

Description

Technical Field

[0001] The invention relates to the field of medical equipment, in particular to a lung capacity training device for respiratory medicine nursing. Background Art

[0002] Due to the symptoms of respiratory diseases, the muscle contraction of respiratory patients is relatively small, so they need to be assisted by a respiratory trainer. The respiratory trainer mainly uses the basic principle of impedance training. The patient inhales hard into the respiratory trainer to resist the set impedance to increase the strength of the inspiratory muscles, which can effectively regulate the breathing of respiratory patients.

[0003] Existing vital capacity training equipment for respiratory medicine nursing generally includes a respirator that the patient needs to bite tightly and an impedance that can adjust the gas flow resistance, and the impedance is connected to the respirator through a bellows. After the medical staff adjusts the gas flow resistance of the impedance, the patient bites the respirator tightly and repeats deep breathing to achieve the purpose of training vital capacity.

[0004] Regarding the above-mentioned related technologies, in dry and cold weather conditions, for some patients with sensitive respiratory tracts, frequent breathing of dry and cold air through the mouth can easily irritate the respiratory tract and induce a cold, which in turn causes harm to the patient's body. In addition, existing respirators also have the problem of being difficult to bite tightly. When the patient exhales, the existing medical respiratory masks increase the pressure inside the mask, and gaps are likely to appear between the mask and the patient's skin, making it difficult to perform vital capacity training during the exhalation process. In summary, the existing vital capacity training equipment for respiratory medicine nursing is not easy to provide patients with comfortable vital capacity training conditions in dry and cold weather. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide a lung capacity training device for respiratory medicine nursing to solve the technical problem that the existing lung capacity training equipment for respiratory medicine nursing is not easy to provide comfortable lung capacity training conditions for patients in dry and cold weather.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a vital capacity training device for respiratory medicine nursing, comprising a mask, an air inlet chamber is arranged in the mask, a moist and breathable absorbent cotton sheet is arranged in the air inlet chamber, a refrigeration semiconductor is also arranged in the mask, the refrigeration surface of the refrigeration semiconductor faces the outside of the mask, and the heating surface faces the inside of the mask, the airflow entering the mask will pass through the absorbent cotton sheet and then pass through the heating surface of the refrigeration semiconductor, and also includes a bellows, one end of the bellows is connected to the mask, and the other end is connected to an impedance.

[0007] By adopting the above technical solution, a breathable and moisturizing cotton sheet is arranged at the air inlet channel of the mask to increase the humidity of the air entering the mask. At the same time, the heating surface of the refrigeration semiconductor in the mask is used to heat the air entering the mask, thereby providing patients with more comfortable air conditions in dry and cold weather and improving the quality of patients' vital capacity training.

[0008] The present invention is further configured such that the mask is provided with installation bins on both sides of the air inlet bin, the refrigeration semiconductor is installed in the installation bins, a second one-way diaphragm is provided in the mask corresponding to each installation bin, the ventilation direction of the second one-way diaphragm is from the inside of the mask to the outside of the mask, and an air outlet channel for connecting the second one-way diaphragm and the refrigeration surface of the refrigeration semiconductor is provided in the mask.

[0009] Preferably, after the small water droplets are collected, they are guided by the water guide component to the absorbent cotton sheet to ensure that the absorbent cotton sheet is kept moist.

[0010] The present invention is further configured such that two refrigeration semiconductors are arranged in each installation bin, and the two refrigeration semiconductors are arranged obliquely in an inverted cone shape. A water-guiding cotton strip is arranged at the bottom end of the refrigeration semiconductor in the installation bin along the length direction of the refrigeration semiconductor, and one end of the water-guiding cotton strip is in contact with the edge of the absorbent cotton sheet.

[0011] Preferably, the small water droplets condensed on the cooling surfaces of the two cooling semiconductors arranged in an inverted cone shape can flow down to the water-conducting cotton strip more smoothly.

[0012] The present invention is further configured such that a ventilation cover is installed at the bottom end of the installation bin, and a louver-shaped air outlet groove is provided on the ventilation cover.

[0013] Preferably, the breathable cover plays a role in protecting the refrigeration semiconductor and the water-conducting cotton strip.

[0014] The present invention is further configured such that the bottom end of the air inlet bin is fixedly connected to a bin cover, the bottom end of the bin cover is connected to a three-way pipe, the bottom end of the three-way pipe is connected to a bellows, and the end of the bellows away from the bin cover is connected to an impedance.

[0015] Preferably, the bin cover is used to provide a connection port for the three-way pipe and also serves as a limit for the absorbent cotton sheet.

[0016] The present invention is further configured such that a first one-way diaphragm is provided at the connection between the three-way pipe and the chamber cover, the three-way pipe is also directly connected to a position inside the mask facing the patient's mouth, and a third one-way diaphragm is provided on the mask facing the three-way pipe. The ventilation direction of the first one-way diaphragm is from the outside of the mask to the inside of the mask, and the ventilation direction of the third one-way diaphragm is from the inside of the mask to the outside of the mask.

[0017] Preferably, while preheating the inner wall of the bellows, part of the water vapor can be condensed by utilizing the low-temperature bellows, thereby further ensuring the humidity of the inhaled air, while also effectively avoiding the formation of gaps at the edges due to increased air pressure inside the mask.

[0018] The present invention is further configured such that the top and bottom ends of both sides of the mask are fixedly connected with ties, and the ties diagonally arranged are connected to each other.

[0019] Preferably, the diagonally connected straps can further ensure that the mask is stably fixed to the patient's head to prevent it from falling off due to movement of the patient's head.

[0020] The present invention is further configured such that an air guide plug-in is inserted into the air inlet bin inside the mask, the top of the air guide plug-in is an arc-shaped structure, and the two ends are respectively facing the two installation bins of the mask.

[0021] Preferably, the air guide plug-in is used to guide the air entering the mask to the heating surface of the refrigeration semiconductor, thereby achieving heating of the cold air.

[0022] The present invention is further configured such that the bottom end of the air guide plug-in is fixedly connected with a hollow plug-in platform, the plug-in platform can be inserted into the air inlet bin, the bottom end of the plug-in platform contacts the water-absorbing cotton sheet, and a gap is left near the water-guiding cotton strip.

[0023] Preferably, the absorbent cotton sheet is fixed by the cooperation of the plug-in platform and the bin cover.

[0024] In summary, the present invention mainly has the following beneficial effects:

[0025] 1. The present invention increases the humidity of the air entering the mask by arranging a breathable and moisturizing cotton sheet at the air inlet channel of the mask, and at the same time utilizes the heating surface of the refrigeration semiconductor in the mask to heat the air entering the mask, thereby providing patients with more comfortable air conditions in dry and cold weather and improving the quality of patients' vital capacity training.

[0026] 2. The present invention directs the cooling surface of the cooling semiconductor toward the air outlet channel of the mask, and the water vapor carried by the patient's own breathing in the air exhaled by the patient condenses on the cooling surface of the cooling semiconductor, and then is guided to the water absorbent cotton sheet by the capillary action of the water-conducting cotton strip, so as to continuously maintain the humidity of the water absorbent cotton sheet, humidify the water absorbent cotton sheet with the water vapor exhaled by the patient, and at the same time, humidify the air entering the mask to be inhaled by the patient with the water vapor stored in the water absorbent cotton sheet, without the need to frequently replace the water absorbent cotton sheet or frequently add moisture to the water absorbent cotton sheet;

[0027] 3. The present invention fixes and connects the strap structure at the four corners of the mask. When the mask is worn, the strap is connected diagonally and fastened to the patient's face, which can effectively prevent the mask edge from having a gap with the patient's skin, thereby effectively improving the air tightness of the mask and further improving the effect of vital capacity training;

[0028] 4. The present invention provides an air outlet connected to the bellows at a position corresponding to the patient's mouth exhalation, and provides a one-way diaphragm from the mask to the bellows at the air outlet. During the patient's exhalation, the air pressure inside the mask increases, and part of the gas can flow out of the mask from the air outlet connected to the bellows, thereby effectively avoiding the low air outlet efficiency of the mask and the appearance of a gap at the edge of the mask contacting the patient's skin;

[0029] 5. The present invention arranges two refrigeration semiconductors in the installation bin, and arranges the two refrigeration semiconductors in an inverted cone shape. A water-guiding cotton strip for guiding condensed water is arranged at the bottom of the two semiconductors, so that the condensed water generated by the refrigeration surface of the refrigeration semiconductor can flow to the water-guiding cotton strip more smoothly, thereby effectively reducing the evaporation of condensed water and improving the efficiency of the condensed water flowing to the water-absorbing cotton sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a three-dimensional diagram of the mask of the present invention;

[0031] Figure 2 A three-dimensional view of the mask from another perspective of the present invention;

[0032] Figure 3 It is a stereoscopic diagram of the assembled state of the mask, bellows and impedance device of the present invention;

[0033] Figure 4 For the present invention Figure 3 A magnified view of middle;

[0034] Figure 5 An exploded view of the internal components of the mask of the present invention;

[0035] Figure 6 For the present invention Figure 5 Enlarged view of middle B;

[0036] Figure 7 This is an exploded view of the internal components of the mask from another perspective of the present invention;

[0037] Figure 8 For the present invention Figure 7 Enlarged view of middle C;

[0038] Fig. 9 It is a three-dimensional diagram of the air guide plug-in of the present invention.

[0039] Description of reference numerals:

[0040] 1. Mask; 101. Air inlet bin; 102. Installation bin; 103. Air outlet channel; 2. Refrigeration semiconductor; 3. Water-absorbing cotton sheet; 4. Water-conducting cotton strip; 5. Bin cover; 6. Three-way pipe; 7. Bellows; 8. Impedance device; 9. Breathable cover; 10. Power plug-in port; 11. First one-way diaphragm; 12. Second one-way diaphragm; 13. Third one-way diaphragm; 14. Air guide plug-in; 1401. Plug-in platform; 15. Tie strap. DETAILED DESCRIPTION

[0041] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0042] The following describes an embodiment of the present invention based on its overall structure.

[0043] First embodiment:

[0044] A lung capacity training device for respiratory medicine nursing, please refer to Figure 1-9 , including a mask 1, the edge of the mask 1 is a rubber ring with strong skin-fitting ability, an air inlet bin 101 is arranged in the mask 1, specifically, the air inlet bin 101 penetrates the inner wall of the mask 1 in the vertical direction, a moist and breathable water-absorbing cotton sheet 3 is arranged in the air inlet bin 101, a refrigeration semiconductor 2 is also arranged in the mask 1, specifically, the refrigeration semiconductor 2 includes a refrigeration surface and a heating surface, when the refrigeration semiconductor 2 is energized, the heating surface will heat and the refrigeration surface will cool, the mask 1 is also provided with a plug 10 for connecting a power supply line, the power supply wire is connected through the plug 10 to power the refrigeration semiconductor 2, the heating surface of the refrigeration semiconductor 2 will automatically cut off the power when the temperature exceeds the threshold value to prevent scalding the patient, the cooling surface of the refrigeration semiconductor 2 faces the outside of the mask 1, and the heating surface faces the inside of the mask 1, the heating surface temperature of the refrigeration semiconductor 2 will not be too high to avoid scalding the patient, and the airflow entering the mask 1 will pass through the water-absorbing cotton sheet 3 and then pass through the heating surface of the refrigeration semiconductor 2.

[0045] It also includes a bellows 7, one end of the bellows 7 is connected to the mask 1, and the other end is connected to an impedance 8. The length of the bellows 7 is long enough to allow patients with different physical conditions to lie or lean on the bed, and the impedance 8 is placed on the bedside table. The patient does not need to hold the impedance 8 to perform vital capacity training. Specifically, the impedance 8 is a respiratory medicine impedance 8 commonly used in the prior art for vital capacity training. The present application does not make any improvements to the impedance 8, and it will not be described in detail here.

[0046] In the above embodiments, please refer to Figure 4-8The mask 1 is provided with mounting bins 102 on both sides of the air inlet bin 101, and the refrigeration semiconductor 2 is installed in the mounting bins 102. Specifically, the mounting bins 102 are airtight, and a second one-way diaphragm 12 is provided in the mask 1 corresponding to each mounting bin 102. The ventilation direction of the second one-way diaphragm 12 is from the inside of the mask 1 to the outside of the mask 1, and an air outlet channel 103 for connecting the second one-way diaphragm 12 and the refrigeration surface of the refrigeration semiconductor 2 is provided in the mask 1. Specifically, the blowing direction of the air outlet channel 103 toward the mounting bin 102 is parallel to the refrigeration surface of the refrigeration semiconductor 2, and the refrigeration surface of the refrigeration semiconductor 2 can be utilized to the maximum extent to condense the moisture in the patient's exhaled air, and the patient's exhaled gas leaving the mask 1 through the second one-way diaphragm 12 is condensed on the refrigeration surface of the refrigeration semiconductor 2 to form small water droplets. After the small water droplets are gathered, they are guided by the water guide component to the water absorbent cotton sheet 3 to ensure the moist state of the water absorbent cotton sheet 3.

[0047] Furthermore, two refrigeration semiconductors 2 are arranged in each installation bin 102, and the two refrigeration semiconductors 2 are arranged in an inverted cone shape. The installation bin 102 is provided with a water-guiding cotton strip 4 at the bottom end of the refrigeration semiconductor 2 along the length direction of the refrigeration semiconductor 2. One end of the water-guiding cotton strip 4 is in contact with the edge of the absorbent cotton sheet 3. The small water droplets condensed on the refrigeration surface of the two refrigeration semiconductors 2 arranged in an inverted cone shape can flow down to the water-guiding cotton strip 4 more smoothly.

[0048] Specifically, the bottom end of the air inlet bin 101 is fixedly connected with a bin cover 5, the bottom end of the bin cover 5 is connected with a three-way pipe 6, the bottom end of the three-way pipe 6 is connected with a bellows 7, the end of the bellows 7 away from the bin cover 5 is connected to an impedance 8, and the bin cover 5 is used to provide a connection port for the three-way pipe 6, and also serves to limit the absorbent cotton sheet 3.

[0049] In the above embodiments, please refer to Figure 4-8 A first one-way diaphragm 11 is provided at the connection between the three-way pipe 6 and the chamber cover 5. The three-way pipe 6 is also directly connected to the position inside the mask 1 facing the patient's mouth. The mask 1 is provided with a third one-way diaphragm 13 facing the three-way pipe 6. The ventilation direction of the first one-way diaphragm 11 is from the outside of the mask 1 to the inside of the mask 1, and the ventilation direction of the third one-way diaphragm 13 is from the inside of the mask 1 to the outside of the mask 1. When the patient's exhaled gas causes the air pressure in the mask 1 to rise rapidly, part of the exhaled gas passes through the third one-way diaphragm 13 and then flows in the opposite direction in the bellows 7. While preheating the inner wall of the bellows 7, it can also use the low-temperature bellows 7 to condense part of the water vapor, thereby further ensuring the humidity of the inhaled air, and at the same time effectively avoiding the formation of gaps at the edge due to the increase in the air pressure inside the mask 1.

[0050] Second embodiment:

[0051] A lung capacity training device for respiratory medicine nursing, please refer to Figure 1-9On the basis of the first embodiment, the difference from the first embodiment is that a breathable cover 9 is installed at the bottom end of the installation bin 102, the top surface of the breathable cover 9 contacts the water-conducting cotton strip 4, which plays a role in limiting the water-conducting cotton strip 4, and a louver-shaped air outlet groove is provided on the breathable cover 9. The breathable cover 9 plays a role in protecting the refrigeration semiconductor 2 and the water-conducting cotton strip 4, and a louver-shaped air outlet is provided on the bottom surface of the breathable cover 9, and the inclination direction of the louver-shaped air outlet conforms to the air outlet direction of the air outlet channel 103, so as to avoid causing excessive resistance to the air flowing out of the air outlet channel 103.

[0052] The third embodiment:

[0053] A lung capacity training device for respiratory medicine nursing, please refer to Figure 1-9 On the basis of the second embodiment, the difference from the second embodiment is that the top and bottom ends of both sides of the mask 1 are fixedly connected with straps 15. In this embodiment, the diagonally arranged straps 15 are connected to each other. The diagonally connected straps 15 can further ensure that the mask 1 is stably fixed to the patient's head to prevent it from falling off due to the movement of the patient's head. In other undisclosed embodiments, the straps 15 can also be connected to each other at the same height to adapt to different head shapes of different patients.

[0054] In the above embodiments, please refer to Figure 4-9 An air guide plug-in 14 is inserted into the air intake bin 101 inside the mask 1. The top of the air guide plug-in 14 is an arc-shaped structure, and both ends are respectively facing the two mounting bins 102 of the mask 1. The arc-shaped air guide plug-in 14 can effectively avoid excessive resistance to air intake. The air guide plug-in 14 is used to guide the air entering the mask 1 to the heating surface of the refrigeration semiconductor 2, thereby heating the cold air and avoiding the patient from directly inhaling too much cold air and causing physical discomfort.

[0055] Furthermore, the bottom end of the air guide plug-in 14 is fixedly connected with a hollow plug-in platform 1401, and the plug-in platform 1401 can be inserted into the air inlet bin 101. Specifically, the outer wall of the plug-in platform 1401 is in close contact with the inner wall of the air inlet bin 101, and the friction between the two is used to fix the air guide plug-in 14. When installing the absorbent cotton sheet 3 and actively humidifying the absorbent cotton sheet 3, the air guide plug-in 14 can be pulled out first, and then the absorbent cotton sheet 3 can be operated. The bottom end of the plug-in platform 1401 contacts the absorbent cotton sheet 3, and a gap is left near the position of the water guide cotton strip 4. The absorbent cotton sheet 3 is fixed by the plug-in platform 1401 and the bin cover 5. Specifically, the gap at the bottom end of the plug-in platform 1401 is used to stagger the water guide cotton strip 4 to prevent the water guide cotton strip 4 from being unable to smoothly conduct condensed water to the absorbent cotton sheet 3 due to the plug-in platform 1401 squeezing the edge of the absorbent cotton sheet 3 too tightly.

[0056] When the present invention is in operation, after the mask 1 is worn on the patient's head, the impedance device 8 is connected to the bottom end of the three-way pipe 6 through the bellows 7, and after adjusting the gas flow resistance of the impedance device 8, the patient cyclically inhales and exhales through the mouth, and the dry and cold air passes through the moist absorbent cotton sheet 3 and enters the mask 1, and then is guided by the wind guide plug-in 14 and blows to the heating surfaces of the refrigeration semiconductors 2 on both sides. The air is changed from the dry and cold state before entering the mask 1 to the temperature and humidity suitable for the patient to inhale, thereby improving the comfort of the patient;

[0057] The gas exhaled by the patient passes through the second one-way diaphragm 12 and flows along the air outlet channel 103 to the cooling surface of the cooling semiconductor 2 and condenses into small water droplets. After condensing on the cooling surface of the cooling semiconductor 2, the small water droplets slide downward to the water-guiding cotton strip 4 and are guided by the capillary action of the water-guiding cotton strip 4 to flow to the absorbent cotton sheet 3 to maintain the moist state of the absorbent cotton sheet 3, and continuously humidify the dry and cold air entering the mask 1, so that there is no need to frequently replace the absorbent cotton sheet 3 in the mask 1, and better lung capacity rehabilitation training can be achieved for the patient.

[0058] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A lung capacity training device for respiratory medicine nursing, characterized in that: include A mask (1), wherein an air inlet bin (101) is arranged inside the mask (1), wherein a moist and breathable water-absorbing cotton sheet (3) is arranged inside the air inlet bin (101), wherein a refrigeration semiconductor (2) is further arranged inside the mask (1), wherein the refrigeration surface of the refrigeration semiconductor (2) faces the outside of the mask (1), and the heating surface faces the inside of the mask (1), and the airflow entering the mask (1) passes through the water-absorbing cotton sheet (3) and then passes through the heating surface of the refrigeration semiconductor (2); A bellows (7), one end of which is connected to the mask (1), and the other end of which is connected to an impedance (8).

2. The lung capacity training device for respiratory medicine nursing according to claim 1, characterized in that: The mask (1) is provided with mounting chambers (102) on both sides of the air inlet chamber (101), the refrigeration semiconductor (2) is installed in the mounting chamber (102), and a second one-way diaphragm (12) is provided in the mask (1) corresponding to each mounting chamber (102), the ventilation direction of the second one-way diaphragm (12) is from the inside of the mask (1) to the outside of the mask (1), and an air outlet channel (103) for connecting the second one-way diaphragm (12) and the refrigeration surface of the refrigeration semiconductor (2) is provided in the mask (1).

3. The lung capacity training device for respiratory medicine nursing according to claim 2, characterized in that: Two refrigeration semiconductors (2) are arranged in each installation chamber (102), and the two refrigeration semiconductors (2) are arranged in an inverted cone shape. The installation chamber (102) is provided with a water-conducting cotton strip (4) at the bottom end of the refrigeration semiconductor (2) along the length direction of the refrigeration semiconductor (2), and one end of the water-conducting cotton strip (4) is in contact with the edge of the water-absorbing cotton sheet (3).

4. The lung capacity training device for respiratory medicine nursing according to claim 3, characterized in that: A vent cover (9) is installed at the bottom end of the installation bin (102), and a louver-shaped air outlet groove is provided on the vent cover (9).

5. The lung capacity training device for respiratory medicine nursing according to claim 1, characterized in that: The bottom end of the air inlet bin (101) is fixedly connected to a bin cover (5), the bottom end of the bin cover (5) is connected to a three-way pipe (6), the bottom end of the three-way pipe (6) is connected to a bellows (7), and the end of the bellows (7) away from the bin cover (5) is connected to an impedance (8).

6. The lung capacity training device for respiratory medicine nursing according to claim 5, characterized in that: A first one-way diaphragm (11) is arranged at the connection between the three-way pipe (6) and the chamber cover (5); the three-way pipe (6) is also directly connected to a position inside the mask (1) facing the patient's mouth; a third one-way diaphragm (13) is arranged on the mask (1) facing the three-way pipe (6); the ventilation direction of the first one-way diaphragm (11) is from the outside of the mask (1) to the inside of the mask (1); and the ventilation direction of the third one-way diaphragm (13) is from the inside of the mask (1) to the outside of the mask (1).

7. The lung capacity training device for respiratory medicine nursing according to claim 1, characterized in that: The top and bottom ends of both sides of the mask (1) are fixedly connected with straps (15), and the straps (15) arranged diagonally are connected to each other.

8. The lung capacity training device for respiratory medicine nursing according to claim 4, characterized in that: An air guide plug-in (14) is inserted into the air inlet bin (101) inside the mask (1), and the top of the air guide plug-in (14) is an arc-shaped structure, with two ends facing the two installation bins (102) of the mask (1) respectively.

9. The lung capacity training device for respiratory medicine nursing according to claim 8, characterized in that: The bottom end of the air guide plug-in unit (14) is fixedly connected to a hollow plug-in platform (1401), and the plug-in platform (1401) can be inserted into the air inlet bin (101). The bottom end of the plug-in platform (1401) contacts the water-absorbing cotton sheet (3), and a gap is left at a position close to the water-guiding cotton strip (4).

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