Oxygen inhalation mask capable of being automatically regulated and controlled

Abstract

The invention relates to the technical field of medical instruments, in particular to an oxygen inhalation mask capable of being automatically regulated and controlled, which comprises a mask main body and an oxygen delivery pipe, one end of the oxygen delivery pipe is in through connection with an oxygen supply source, the other end of the oxygen delivery pipe is in through connection with a mixer, and the mixer is used for mixing oxygen and air. The end, away from the oxygen conveying pipe, of the mixer is in threaded connection with an installation sleeve, and a gas flow sensor is fixedly installed in the installation sleeve and installed on the top of the mixer through the installation sleeve. The first one-way valve and the second one-way valve are arranged on the mask body, so that gas in the mask body can only enter through the mixer, the amount of oxygen conveyed by the oxygen conveying pipe is determined, the gas flow sensor is arranged above the mixer, the breathing intensity of a patient can be monitored in real time, and the breathing effect of the patient is improved. Therefore, the oxygen supply amount is automatically controlled, and accurate regulation and control of the oxygen supply amount of the patient are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an automatically adjustable oxygen absorption mask. Background Art

[0002] Severely ill patients generally require oxygen inhalation. The conventional oxygen tube is a nasal oxygen tube. However, for critically ill patients with weak breathing, the nasal oxygen tube provides too little oxygen to meet the needs. Therefore, an oxygen mask is needed to enable the patient to obtain a higher oxygen supply. A Chinese patent (publication number: CN115079756A) discloses an auxiliary oxygen inhalation tube temperature and humidity monitoring and controlling instrument, comprising a control box, and an oxygen inlet pipe and an oxygen outlet pipe arranged at both ends of the control box, the oxygen inlet pipe is provided with a flow meter and a pressure valve, the oxygen outlet pipe is provided with a humidity sensor, the oxygen outlet pipe is connected to one end of a hose, and the other end of the hose is connected to an oxygen mask through a condensate collection component, a conical liquid storage hopper is provided in the control box, a sealing frame plate is fixedly connected to the bottom end of the conical liquid storage hopper, a plurality of atomization tubes are vertically connected to the top end surface of the sealing frame plate, a liquid inlet is provided at the bottom of the atomization tube, an electromagnetic heating controller is provided in the sealing frame plate, a plurality of heat conducting rods are vertically connected to the top end surface of the electromagnetic heating controller, the heat conducting rods penetrate the sealing frame plate and extend upward into the atomization tube.

[0003] However, the existing adjustable oxygen masks have some disadvantages when used, such as:

[0004] Since the condition of critically ill patients fluctuates greatly, the oxygen demand changes greatly in a short period of time. Existing oxygen masks are unable to change the oxygen supply in time according to the oxygen demand of critically ill patients, making it impossible to automatically control the oxygen supply of the same patient at different stages of the illness. Summary of the invention

[0005] In view of this, the purpose of the present invention is to propose an automatically adjustable oxygen mask to solve the problem that due to the large fluctuations in the condition of critically ill patients, the oxygen demand changes greatly in a short period of time, and the existing oxygen masks cannot change the oxygen supply in time according to the oxygen demand of critically ill patients, making it impossible to automatically adjust the oxygen supply to the same patient at different stages of the illness.

[0006] Based on the above purpose, the present invention provides an automatically adjustable oxygen inhalation mask, comprising a mask body and an oxygen delivery tube, wherein one end of the oxygen delivery tube is connected to an oxygen supply source, and the other end of the oxygen delivery tube is connected to a mixer, and the mixer is used to mix oxygen with air, and the mixer is threadedly connected to an installation sleeve at one end away from the oxygen delivery tube, and a gas flow sensor is fixedly installed inside the installation sleeve, and the gas flow sensor is installed on the top of the mixer through the installation sleeve, and the mixer is connected to the external space through the gas flow sensor. The device is used to monitor the flow rate of the gas entering the mixer. A connecting pipe is connected to the middle of the mixer horizontally. The other end of the connecting pipe is arranged through the middle of the mask body. The connecting pipe is located at one end inside the mask body and is covered with a first dustproof net. A first one-way valve is installed at the center of the connecting pipe. The first one-way valve is used to prevent the gas inside the mask body from flowing out through the connecting pipe; a fixing belt mechanism is fixedly provided at the edge of a side of the mask body away from the connecting pipe, and one-way exhaust mechanisms are fixedly provided on both sides of the mask body above the side where the mixer is located.

[0007] Furthermore, the fixing strap mechanism includes a connecting strap, a pillow strap and a rubber pad, one end of the connecting strap is fixedly connected to the edges of the two side surfaces of the mask body, two connecting straps are provided, a fastening and adjusting mechanism is fixedly installed on the outer side of the other end of the connecting strap, the two connecting straps are respectively connected to the two ends of the pillow strap through the fastening and adjusting mechanism, the rubber pad is fixedly covered at the center of the pillow strap, and the rubber pad is used to cushion under the patient's head.

[0008] Furthermore, the fastening and adjusting mechanism comprises a main body shell, an adjusting top cover, an adjusting rope and a fixing block, the main body shell is fixedly arranged on the outer wall of the end portion of the connecting and mounting belt, a bearing is fixedly arranged at the center of the bottom inner wall of the main body shell, a winding disk is fixedly arranged at the center inside the bearing, the winding disk is rotatably mounted at the center of the bottom inner wall of the main body shell through the bearing, the adjusting rope is wound and fixed on the winding disk, the winding disk is used to wind up the adjusting rope, through holes are opened at the bottom of both sides of the main body shell, the through holes are for the adjusting rope to pass through, the other end of the adjusting rope is fixedly connected to the fixing block, the fixing block is fixedly connected to the outer wall of the end portion of the pillow belt, and the winding disk A driving slot is vertically opened at the center, the driving slot is a hexagonal slot above and a circular slot below, a connecting rod is fixedly connected to the center of the lower surface of the adjusting top cover, the other end of the connecting rod is fixedly connected to a pawl, a hexagonal column is fixedly connected to the center of the bottom of the pawl, the hexagonal column cooperates with the hexagonal slot of the driving slot, a circular column is fixedly connected to the center of the bottom of the hexagonal column, the circular column cooperates with the circular slot of the driving slot, the adjusting top cover drives the winding disk to rotate by the cooperation between the hexagonal column and the hexagonal slot of the driving slot, a ratchet rack is provided on the inner wall of the side of the main shell, and the adjusting top cover rotates unidirectionally by the cooperation between the pawl and the ratchet rack.

[0009] Furthermore, the one-way exhaust mechanism includes a one-way exhaust pipe, a second one-way valve and a second dust-proof net. The one-way exhaust pipe is arranged on both sides of the mask body above the side where the mixer is located. The second one-way valve is fixedly arranged inside the one-way exhaust pipe. The second one-way valve is used to prevent external air from entering the mask body through the one-way exhaust pipe. The second dust-proof net covers one end of the one-way exhaust pipe located outside the mask body. The second dust-proof net is used to prevent the second one-way valve from falling off from the one-way exhaust pipe.

[0010] Furthermore, a dust cover is arranged between the mixer and the mounting sleeve, the dust cover is threadedly installed on the top of the mixer, a third dust net is arranged at the center of the dust cover, a third one-way valve is fixedly arranged on the lower surface of the dust cover corresponding to the third dust net, the third one-way valve is used to prevent the internal gas of the mixer from escaping through the dust cover, a mounting ring is fixedly connected to the upper surface of the dust cover, the third dust net is arranged inside the mounting ring, the mounting sleeve is threadedly installed on the mounting ring, and the gas flow sensor is installed above the dust cover through the cooperation of the mounting sleeve and the mounting ring.

[0011] Furthermore, evaporating cotton is arranged inside the lower part of the mixer, and the evaporating cotton is evenly filled inside the mixer. A liquid supply tank is threadedly installed on the side of the mixer, and the liquid outlet of the liquid supply tank is arranged through the side wall of the mixer. The liquid supply tank is arranged corresponding to the evaporating cotton, and the liquid supply tank is used to transport the internal liquid to the evaporating cotton for evaporation.

[0012] Furthermore, it also includes: a collecting sponge, which is a thin sheet structure, and the collecting sponge fits with the inner wall of the mask body, and the collecting sponge is used to collect liquid condensed on the inner wall of the mask body.

[0013] Furthermore, it also includes: a rubber ring, which is arranged at the edge of the mask body, the rubber ring is used to cushion between the mask body and the patient's face, and the rubber ring is used to improve the sealing performance of the mask body.

[0014] Beneficial effects of the present invention:

[0015] The present invention arranges a first one-way valve and a second one-way valve on the mask body so that the gas inside the mask body can only enter through the mixer. Since the amount of oxygen delivered by the oxygen delivery pipe is fixed, a gas flow sensor is arranged above the mixer to monitor the patient's breathing intensity in real time, thereby automatically controlling the oxygen supply and achieving precise regulation of the patient's oxygen supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the main three-dimensional structure of a product in one embodiment of the present invention;

[0018] Figure 2 For the present invention Figure 1 A rear perspective structural diagram of the product in the embodiment;

[0019] Figure 3 For the present invention Figure 1 A schematic side view of the structure of the product in the embodiment;

[0020] Figure 4 For the present invention Figure 1 A schematic diagram of the side cross-sectional structure of the product in the embodiment;

[0021] Figure 5 For the present invention Figure 3The schematic diagram of the cross-sectional structure of the product at AA;

[0022] Figure 6 For the present invention Figure 1 A schematic diagram of the front view of the fastening and adjusting mechanism of the product in the embodiment;

[0023] Figure 7 For the present invention Figure 6 The cross-sectional structure diagram of the product at BB;

[0024] Figure 8 For the present invention Figure 6 The cross-sectional structure diagram of the product at CC;

[0025] Fig. 9 For the present invention Figure 6 Schematic diagram of the cross-sectional structure of the product at DD;

[0026] Fig.10 For the present invention Figure 1 Schematic diagram of the three-dimensional structure of the first one-way valve of the product in the embodiment.

[0027] The markings in the figure are:

[0028] 101, mask body; 102, oxygen delivery tube; 103, mixer; 104, connecting pipe; 105, first one-way valve; 106, first dust screen; 107, mounting sleeve; 108, gas flow sensor; 200, fixing belt mechanism; 201, connecting mounting belt; 202, pillow belt; 203, rubber pad; 300, fastening adjustment mechanism; 301, main body shell; 302, adjusting top cover; 303, adjusting rope; 304, fixing block; 305, through hole; 306, shaft Bearing; 307, winding disk; 308, ratchet rack; 309, pawl; 310, connecting rod; 311, hexagonal prism; 312, circular column; 313, driving slot; 400, one-way exhaust mechanism; 401, one-way exhaust pipe; 402, second one-way valve; 403, second dustproof net; 501, dust cover; 502, third one-way valve; 503, third dustproof net; 504, installation ring; 601, liquid supply tank; 602, evaporating cotton; 700, collecting sponge; 800, rubber ring. DETAILED DESCRIPTION

[0029] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0030] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0031] Please also read Figure 1-Figure 10 ,in, Figure 1 This is a schematic diagram of the main three-dimensional structure of a product in one embodiment of the present invention; Figure 2 For the present invention Figure 1 A rear perspective structural diagram of the product in the embodiment; Figure 3 For the present invention Figure 1 A schematic side view of the structure of the product in the embodiment; Figure 4 For the present invention Figure 1 A schematic diagram of the side cross-sectional structure of the product in the embodiment; Figure 5 For the present invention Figure 3 The schematic diagram of the cross-sectional structure of the product at AA; Figure 6 For the present invention Figure 1 A schematic diagram of the front view of the fastening and adjusting mechanism of the product in the embodiment; Figure 7 For the present invention Figure 6 The cross-sectional structure diagram of the product at BB; Figure 8 For the present invention Figure 6 The cross-sectional structure diagram of the product at CC; Fig. 9 For the present invention Figure 6 Schematic diagram of the cross-sectional structure of the product at DD; Fig.10 For the present invention Figure 1 Schematic diagram of the three-dimensional structure of the first one-way valve of the product in the embodiment.

[0032] An automatically adjustable oxygen inhalation mask comprises a mask body 101 and an oxygen delivery tube 102, wherein one end of the oxygen delivery tube 102 is connected to an oxygen supply source, and the other end of the oxygen delivery tube 102 is connected to a mixer 103, wherein the mixer 103 is used to mix oxygen with air, and the mixer 103 is threadedly connected to a mounting sleeve 107 at one end away from the oxygen delivery tube 102, wherein a gas flow sensor 108 is fixedly installed inside the mounting sleeve 107, wherein the gas flow sensor 108 is installed on the top of the mixer 103 through the mounting sleeve 107, wherein the mixer 103 is connected to an external space through the gas flow sensor 108, and wherein the gas flow sensor 108 is used to monitor the gas flow entering the mixer The flow rate of the gas inside the mixer 103, the middle part of the mixer 103 is horizontally connected with a connecting pipe 104, the other end of the connecting pipe 104 is set through the middle part of the mask body 101, the connecting pipe 104 is located inside the mask body 101 and one end is covered with a first dustproof net 106, and a first one-way valve 105 is installed at the center of the connecting pipe 104, and the first one-way valve 105 is used to prevent the gas inside the mask body 101 from flowing out through the connecting pipe 104; a fixing belt mechanism 200 is fixedly provided at the edge of a side of the mask body 101 away from the connecting pipe 104, and a one-way exhaust mechanism 400 is fixedly provided on both sides of the mask body 101 above the side where the mixer 103 is located;

[0033] The first one-way valve 105 can control the oxygen in the mixer 103 to enter the mask body 101, and prevent the air in the mask body 101 from being discharged into the mixer 103 through the first one-way valve 105;

[0034] The oxygen supply source connected to one end of the oxygen delivery tube 102 may be bottled liquid oxygen or an oxygen supply pipeline pre-laid by the hospital. Since both of the above two situations support quick connectors, a quick connector may be provided at the connection between the oxygen delivery tube 102 and the oxygen delivery tube 102, which is conducive to quickly connecting the oxygen supply source. In order to prevent dust from entering the oxygen delivery tube 102, a gas filter may be installed at the connection between the quick connector and the oxygen delivery tube 102 to filter the dust hidden inside the quick connector.

[0035] Among them, the gas flow sensor 108 can use a sensor with model awm720p1. The gas flow sensor 108 is mainly used to monitor the gas flow entering the mixer 103. A logic controller can be set up to set a monitoring threshold for the gas flow sensor 108, and the detected flow change is converted into an electrical signal and then connected to a control circuit to control the electric control valve or the electric control switch, so as to form a pipeline control system triggered by the gas flow sensor 108; in specific operation, multiple oxygen supply sources can be selected to be connected to the oxygen delivery pipe 102 at the same time, and an electric control valve is set at the outlet end of each oxygen supply source. When the gas flow sensor 108 detects that the gas flow is low, it proves that the patient's breathing is even at this time and only conventional gas supply operation is required. The electric control valve at the outlet of one of the oxygen supply sources is opened through the logic controller, and oxygen is supplied by a single oxygen supply source; when the gas flow sensor 108 detects that the gas flow is slightly faster, it proves that the patient's breathing becomes rapid and the oxygen demand increases, and the electric control valves at the outlets of the two oxygen supply sources are opened at the same time through the logic controller, and two gas supply sources are provided to supply oxygen to the patient at the same time, so that the patient has sufficient oxygen supply; and when the gas flow sensor 108 detects that the gas flow is faster, it proves that the patient's breathing is accelerated and a large amount of oxygen supply is urgently needed, and the electric control valves at the outlets of the three oxygen supply sources are opened at the same time through the logic controller, and three gas supply sources are provided to supply oxygen to the patient at the same time, so that the patient can fully absorb oxygen, thereby realizing dynamic adjustment of the patient's oxygen supply;

[0036] The air flow change monitored by the gas flow sensor 108 can also be set to be proportional to the opening degree of the electric control valve through the logic controller, that is, when the gas flow sensor 108 monitors that the gas flow is lower, it proves that the patient's breathing is smooth. At this time, the lower the opening degree of the electric control valve of the gas supply source, the lower the oxygen supply to the patient. On the contrary, when the gas flow sensor 108 monitors that the gas flow becomes larger, it proves that the oxygen supply cannot meet the patient's breathing needs. The patient needs to speed up breathing to obtain oxygen. At this time, the logic controller controls the electric control valve to open more, so that the air inside the gas supply source can increase the supply to the patient, so that the patient can obtain more oxygen, and the patient's oxygen supply is dynamically adjusted; the specific adjustment method can be adjusted by those skilled in the art according to the needs and the actual situation, but the adjustment method should be dynamically adjusted according to the monitoring results of the gas flow sensor 108;

[0037] The present invention arranges a first one-way valve 105 and a second one-way valve 402 on the mask body 101 so that the gas inside the mask body 101 can only enter through the mixer 103. Since the amount of oxygen delivered by the oxygen delivery pipe 102 is fixed, a gas flow sensor 108 is arranged above the mixer 103, so that the patient's breathing intensity can be monitored in real time, thereby automatically controlling the oxygen supply and realizing precise regulation of the patient's oxygen supply.

[0038] Further, the fixing belt mechanism 200 includes a connecting and mounting belt 201, a pillow belt 202 and a rubber pad 203. One end of the connecting and mounting belt 201 is fixedly connected to the edges of the two side surfaces of the mask body 101. Two connecting and mounting belts 201 are provided. A fastening and adjusting mechanism 300 is fixedly installed on the outer side of the other end of the connecting and mounting belt 201. The two connecting and mounting belts 201 are respectively connected to the two ends of the pillow belt 202 through the fastening and adjusting mechanism 300. The rubber pad 203 is fixedly covered at the center of the pillow belt 202, and the rubber pad 203 is used to cushion under the patient's head.

[0039] Among them, the fixing belt mechanism 200 is set as a segmented fixing belt consisting of a connecting mounting belt 201 and a pillow belt 202, so that it can meet the use of patients of different body shapes. Covering the pillow belt 202 with a rubber pad 203 can increase the softness of the pillow belt 202 and improve the comfort of the patient.

[0040] Furthermore, the fastening and adjusting mechanism 300 includes a main body shell 301, an adjusting top cover 302, an adjusting rope 303 and a fixing block 304, the main body shell 301 is fixedly arranged on the outer wall of the end of the connecting and mounting belt 201, a bearing 306 is fixedly arranged at the center of the bottom inner wall of the main body shell 301, a winding disk 307 is fixedly arranged at the center inside the bearing 306, the winding disk 307 is rotatably installed at the center of the bottom inner wall of the main body shell 301 through the bearing 306, the adjusting rope 303 is wound and fixed on the winding disk 307, the winding disk 307 is used to wind up the adjusting rope 303, through holes 305 are opened at the bottom of both sides of the main body shell 301, the through holes 305 are for the adjusting rope 303 to pass through, the other end of the adjusting rope 303 is fixedly connected to the fixing block 304, the fixing block 304 is fixedly connected to the outer wall of the end of the pillow belt 202, A driving slot 313 is vertically opened at the center of the reel 307, and the driving slot 313 has a hexagonal slot above and a circular slot below. A connecting rod 310 is fixedly connected to the center of the lower surface of the adjusting top cover 302, and a ratchet 309 is fixedly connected to the other end of the connecting rod 310. A hexagonal column 311 is fixedly connected to the center of the bottom of the ratchet 309, and the hexagonal column 311 cooperates with the hexagonal slot of the driving slot 313. A circular column 312 is fixedly connected to the center of the bottom of the hexagonal column 311, and the circular column 312 cooperates with the circular slot of the driving slot 313. The adjusting top cover 302 drives the winding reel 307 to rotate through the cooperation between the hexagonal column 311 and the hexagonal slot of the driving slot 313. A ratchet rack 308 is provided on the inner wall of the side of the main shell 301, and the adjusting top cover 302 rotates unidirectionally through the cooperation between the ratchet 309 and the ratchet rack 308.

[0041] The winding disk 307 is rotatably mounted at the center of gravity of the bottom of the main housing 301 through the bearing 306. During installation, a fixing seat for fixing the bearing 306 can be set at the bottom of the main housing 301, and the bearing 306 is completely stuck inside the fixing seat, so that the outer ring of the bearing 306 is stuck in the fixing seat and cannot rotate, but the inner ring of the bearing 306 can rotate. At this time, the protruding part of the bottom of the winding disk 307 is fixed in the inner ring of the bearing 306, so that the winding disk 307 can be rotatably mounted at the bottom of the main housing 301 through the bearing 306; then a vertical drive slot 313 is opened at the center of the winding disk 307;

[0042] Among them, the same axis at the center of the lower surface of the adjustment top cover 302 is fixedly connected with a connecting rod 310, a ratchet 309, a hexagonal prism 311 and a circular column 312 in sequence from top to bottom; when the adjustment top cover 302 is pressed on the main shell 301, the ratchet 309 just corresponds to the ratchet rack 308, because the ratchet 309 is limited by the ratchet rack 308 to only rotate in one direction, and at this time the hexagonal prism 311 and the circular column 312 are respectively inserted into the hexagonal slot and the circular slot of the driving slot 313, so that the adjustment top cover 302 can only drive the winding disk 307 to rotate in one direction through the hexagonal prism 311 to wind up the adjustment rope 303, and the tightening of the adjustment rope 303 will drive the pillow belt 202 to approach the connecting mounting belt 201 through the fixing block 304, thereby realizing the tightening effect of the fixing belt mechanism 200;

[0043] When the adjustment top cover 302 is pulled out upward, the pawl 309 will be separated from the position of the corresponding ratchet rack 308, so that the ratchet rack 308 no longer has a one-way limiting effect on the pawl 309, and the pawl 309 can rotate forward and backward at this time. At the same time, the upward movement of the pawl 309 will be blocked by the main body shell 301, so that it can only stay in the main body shell 301 and will not fall off. The upward movement of the adjustment top cover 302 will also cause the hexagonal prism 311 to be separated from the drive slot 313, so that the hexagonal prism 311 no longer limits the rotation of the winding disk 307 through the drive slot 313, and the winding disk 307 is pulled outward by the adjustment rope 303. The reverse rotation rotates, thereby making the fixing belt mechanism 200 loose, making it easier for the user to take it off or wear it;

[0044] In the above process, when the hexagonal prism 311 is separated from the driving slot 313, the circular column 312 is longer so that it can continue to be in the circular slot of the driving slot 313. At this time, the circular column 312 can keep the axis of the hexagonal prism 311 from shifting, so that the hexagonal prism 311 can be inserted into the driving slot 313 again. In addition, there are two possible problems in the process of adjusting the top cover 302 to press the main shell 301. The first problem is that the pawl 309 may not correspond to the empty space of the ratchet rack 308. The ratchet 309 is blocked and the adjusting top cover 302 cannot be pressed. In this case, the connecting rod 310 is cancelled and the hexagonal prism 311 is directly used to penetrate the ratchet 309 and fixedly connect it to the lower surface of the adjusting top cover 302, so that the ratchet 309 is slidably connected with the hexagonal prism 311, and limiting plates are arranged at the upper and lower positions of the ratchet 309, so that the ratchet 309 will not be separated from the ratchet rack 308, and whether the winding disk 307 is limited is changed only by whether the hexagonal prism 311 is separated from the driving slot 313. The pawl 309 is slidably connected to the hexagonal prism 311. However, due to the particularity of the shape of the hexagonal prism 311, the pawl 309 can still limit the hexagonal prism 311, thereby realizing the limit position of the pawl 309 on the winding disk 307. At the same time, in order to prevent the hexagonal prism 311 from falling off from the main shell 301, a baffle can be fixedly arranged at an appropriate position above the hexagonal prism 311 above the pawl 309, thereby preventing the hexagonal prism 311 from falling off from the main shell 301. The above solution does not require the pawl 309 to be separated from the ratchet rack 308. Therefore, there is no situation where the pawl 309 is blocked when returning to its position; the second problem is that the hexagonal prism 311 may be blocked and unable to return to its position due to angle mismatch during the process of returning to the hexagonal slot of the drive slot 313. By setting an inclined chamfer at the bottom of the hexagonal prism 311, the hexagonal prism 311 can slide with the chamfer when inserted into the drive slot 313 to cooperate with the user's fine-tuning rotation of the adjustment top cover 302, thereby greatly improving the accuracy of the hexagonal prism 311 returning to the inside of the drive slot 313.

[0045] Further, the one-way exhaust mechanism 400 includes a one-way exhaust pipe 401, a second one-way valve 402 and a second dust-proof net 403. The one-way exhaust pipe 401 is arranged through both sides of the mask body 101 above the side where the mixer 103 is located. The second one-way valve 402 is fixedly arranged inside the one-way exhaust pipe 401. The second one-way valve 402 is used to prevent external air from entering the mask body 101 through the one-way exhaust pipe 401. The second dust-proof net 403 covers one end of the one-way exhaust pipe 401 outside the mask body 101. The second dust-proof net 403 is used to prevent the second one-way valve 402 from falling off from the one-way exhaust pipe 401.

[0046] Among them, the second one-way valve 402 can discharge the air inside the mask body 101, while the external air cannot enter the mask body 101 through the second one-way valve 402.

[0047] Further, a dust cover 501 is provided between the mixer 103 and the mounting sleeve 107, the dust cover 501 is threadedly mounted on the top of the mixer 103, a third dust net 503 is provided at the center of the dust cover 501, a third one-way valve 502 is fixedly provided on the lower surface of the dust cover 501 corresponding to the third dust net 503, the third one-way valve 502 is used to prevent the internal gas of the mixer 103 from escaping through the dust cover 501, a mounting ring 504 is fixedly connected to the upper surface of the dust cover 501, the third dust net 503 is arranged inside the mounting ring 504, the mounting sleeve 107 is threadedly mounted on the mounting ring 504, and the gas flow sensor 108 is installed above the dust cover 501 through the cooperation of the mounting sleeve 107 and the mounting ring 504;

[0048] The third one-way valve 502 allows external air to enter the mixer 103 through the third one-way valve 502, while preventing the air inside the mixer 103 from being discharged, thereby preventing the oxygen inside the mixer 103 from being discharged through the third one-way valve 502, resulting in a waste of oxygen resources.

[0049] Among them, the first one-way valve 105, the second one-way valve 402 and the third one-way valve 502 have the same shape and structure, all of which have a circular hard through hole at the air inlet end and a flat film air nozzle at the air outlet end. The one-way valves mentioned above have stable airflow when exhausting air and a fast reaction speed when blocking air backflow. The higher the return air pressure, the tighter the air pores are closed. However, the first one-way valve 105, the second one-way valve 402 and the third one-way valve 502 are set in different positions and control airflow directions.

[0050] Furthermore, evaporating cotton 602 is arranged inside the lower part of the mixer 103, and the evaporating cotton 602 is evenly filled inside the mixer 103. A liquid supply tank 601 is threadedly installed on the side of the mixer 103, and the liquid outlet of the liquid supply tank 601 is arranged through the side wall of the mixer 103. The liquid supply tank 601 is arranged corresponding to the evaporating cotton 602, and the liquid supply tank 601 is used to transport the internal liquid to the evaporating cotton 602 for evaporation;

[0051] Among them, the liquid supply tank 601 can store clean water such as distilled water, purified water or saline, which is mainly used for humidification. Atomized liquid medicine can also be placed in the liquid supply tank 601. However, whether it is clean water or atomized liquid medicine, it can be soaked in the evaporating cotton 602, so that the oxygen inside the oxygen delivery tube 102 passes through the evaporating cotton 602, and the liquid inside it is atomized into small droplets for the patient to inhale during the oxygen inhalation process.

[0052] Furthermore, it also includes: a collecting sponge 700, the collecting sponge 700 is a thin sheet structure, the collecting sponge 700 fits with the inner wall of the mask body 101, and the collecting sponge 700 is used to collect the liquid condensed on the inner wall of the mask body 101;

[0053] Among them, since the mask body 101 is a sealed space, the moisture in the air exhaled by the patient is easy to condense on the inner wall of the mask body 101, and the small droplets formed are easy to drip into the patient's nasal cavity and cause choking to the patient. Therefore, a collecting sponge 700 is provided to absorb the condensed water to prevent it from forming droplets, and the collecting sponge 700 can be replaced.

[0054] Furthermore, it also includes: a rubber ring 800, which is arranged at the edge of the mask body 101, and the rubber ring 800 is used to cushion between the mask body 101 and the patient's face, and the rubber ring 800 is used to improve the sealing performance of the mask body 101;

[0055] Among them, since the gas flow sensor 108 needs to monitor the amount of air inhaled into the mask body 101 in real time, the mask body 101 needs to be sealed to prevent other air from entering and causing inaccurate monitoring by the gas flow sensor 108.

[0056] In summary, the present invention is provided with a gas flow sensor 108, and the gas flow sensor 108 is mainly used to monitor the gas flow entering the mixer 103. A logic controller can be additionally provided to set a monitoring threshold for the gas flow sensor 108, and the detected flow change is converted into an electrical signal and then connected to a control circuit to control an electric control valve or an electric control switch, so as to form a pipeline control system triggered by the gas flow sensor 108; in specific operation, multiple oxygen supply sources can be selected to be connected to the oxygen delivery pipe 102 at the same time, and an electric control valve is provided at the gas outlet end of each oxygen supply source. When the gas flow sensor 108 detects that the gas flow is low, it proves that the patient's breathing is even at this time and only conventional gas supply operation is required, and the logic controller is used to control the gas flow sensor 108. The logic controller opens the electric control valve at the outlet of one of the oxygen supply sources, and uses a single oxygen supply source to supply oxygen; when the gas flow sensor 108 detects that the gas flow is slightly faster, it proves that the patient's breathing becomes rapid and the oxygen demand increases, and the logic controller opens the electric control valves at the outlets of the two oxygen supply sources at the same time, and provides two gas supply sources to supply oxygen to the patient, so that the patient has sufficient oxygen supply; and when the gas flow sensor 108 detects that the gas flow is faster, it proves that the patient's breathing is accelerated and a large amount of oxygen supply is urgently needed, and the logic controller opens the electric control valves at the outlets of the three oxygen supply sources at the same time, and provides three gas supply sources to supply oxygen to the patient, so that the patient can fully absorb oxygen, and realize dynamic adjustment of the patient's oxygen supply;

[0057] The present invention arranges a first one-way valve 105 and a second one-way valve 402 on the mask body 101 so that the gas inside the mask body 101 can only enter through the mixer 103. Since the amount of oxygen delivered by the oxygen delivery pipe 102 is fixed, a gas flow sensor 108 is arranged above the mixer 103, so that the patient's breathing intensity can be monitored in real time, thereby automatically controlling the oxygen supply and realizing precise regulation of the patient's oxygen supply.

[0058] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0059] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatically adjustable oxygen breathing mask, comprising a mask body (101) and an oxygen delivery tube (102), characterized in that: One end of the oxygen delivery pipe (102) is connected to an oxygen supply source, and the other end of the oxygen delivery pipe (102) is connected to a mixer (103). The mixer (103) is used to mix oxygen with air. One end of the mixer (103) away from the oxygen delivery pipe (102) is threadedly connected to a mounting sleeve (107). A gas flow sensor (108) is fixedly installed inside the mounting sleeve (107). The gas flow sensor (108) is installed on the top of the mixer (103) through the mounting sleeve (107). The mixer (103) is connected to the external space through the gas flow sensor (108). The gas flow sensor (108) is used to monitor the flow rate of gas entering the mixer (103). A connecting pipe (104) is connected to the middle of the mask body (103) transversely, and the other end of the connecting pipe (104) is arranged to pass through the middle of the mask body (101); one end of the connecting pipe (104) located inside the mask body (101) is covered with a first dustproof net (106); a first one-way valve (105) is installed at the center of the connecting pipe (104), and the first one-way valve (105) is used to prevent the internal gas of the mask body (101) from flowing out through the connecting pipe (104); a fixing belt mechanism (200) is fixedly arranged at the edge of a side of the mask body (101) away from the connecting pipe (104), and one-way exhaust mechanisms (400) are fixedly arranged on both sides of the mask body (101) above the side where the mixer (103) is located.

2. The automatically adjustable oxygen mask according to claim 1, characterized in that: The fixing belt mechanism (200) comprises a connecting and mounting belt (201), a pillow belt (202) and a rubber pad (203); one end of the connecting and mounting belt (201) is fixedly connected to the edges of the two side surfaces of the mask body (101); two connecting and mounting belts (201) are provided; a fastening and adjusting mechanism (300) is fixedly installed on the outer side of the other end of the connecting and mounting belt (201); the two connecting and mounting belts (201) are respectively connected to the two ends of the pillow belt (202) through the fastening and adjusting mechanism (300); the rubber pad (203) is fixedly covered at the center of the pillow belt (202); and the rubber pad (203) is used to cushion under the patient's head.

3. The automatically adjustable oxygen mask according to claim 2, characterized in that: The tightening and adjusting mechanism (300) comprises a main body shell (301), an adjusting top cover (302), an adjusting rope (303) and a fixing block (304); the main body shell (301) is fixedly arranged on the outer wall of the end of the connecting and mounting belt (201); a bearing (306) is fixedly arranged at the center of the inner wall at the bottom of the main body shell (301); a winding disk (307) is fixedly arranged at the center inside the bearing (306); the winding disk (307) is rotatably mounted on the main body shell through the bearing (306). The adjusting rope (303) is wound and fixed on the winding drum (307) at the center of the bottom inner wall of the pillow strap (301). The winding drum (307) is used to wind up the adjusting rope (303). Through holes (305) are provided at the bottom of both sides of the main shell (301). The through holes (305) are used for the adjusting rope (303) to pass through. The other end of the adjusting rope (303) is fixedly connected to the fixing block (304). The fixing block (304) is fixedly connected to the outer wall of the end of the pillow strap (202). A drive slot (313) is vertically opened at the center of the disk (307), the upper part of the drive slot (313) is a hexagonal slot and the lower part is a circular slot, a connecting rod (310) is fixedly connected at the center of the lower surface of the adjustment top cover (302), the other end of the connecting rod (310) is fixedly connected to a pawl (309), the bottom center of the pawl (309) is fixedly connected to a hexagonal column (311), the hexagonal column (311) cooperates with the hexagonal slot of the drive slot (313), and the bottom of the hexagonal column (311) is fixedly connected to the hexagonal slot of the drive slot (313). A circular column (312) is fixedly connected at the center, and the circular column (312) cooperates with the circular slot of the driving slot (313). The adjusting top cover (302) drives the winding disk (307) to rotate through the cooperation between the hexagonal column (311) and the hexagonal slot of the driving slot (313). A ratchet rack (308) is provided on the inner wall of the side of the main shell (301), and the adjusting top cover (302) rotates unidirectionally through the cooperation between the ratchet pawl (309) and the ratchet rack (308).

4. The automatically adjustable oxygen mask according to claim 1, characterized in that: The one-way exhaust mechanism (400) comprises a one-way exhaust pipe (401), a second one-way valve (402) and a second dustproof net (403); the one-way exhaust pipe (401) is arranged to pass through the mask body (101) on both sides above a side surface where the mixer (103) is located; the second one-way valve (402) is fixedly arranged inside the one-way exhaust pipe (401); the second one-way valve (402) is used to prevent external air from entering the mask body (101) through the one-way exhaust pipe (401); the second dustproof net (403) covers one end of the one-way exhaust pipe (401) located outside the mask body (101); the second dustproof net (403) is used to prevent the second one-way valve (402) from falling off from the one-way exhaust pipe (401).

5. The automatically adjustable oxygen mask according to claim 1, characterized in that: A dust cover (501) is arranged between the mixer (103) and the mounting sleeve (107). The dust cover (501) is threadedly mounted on the top of the mixer (103). A third dust net (503) is arranged at the center of the dust cover (501). A third one-way valve (502) is fixedly arranged on the lower surface of the dust cover (501) corresponding to the third dust net (503). The third one-way valve (502) is used to prevent the mixer (103) from 03) The internal gas escapes through the dust cover (501), the upper surface of the dust cover (501) is fixedly connected with a mounting ring (504), the third dust net (503) is arranged inside the mounting ring (504), the mounting sleeve (107) is threadedly mounted on the mounting ring (504), and the gas flow sensor (108) is mounted above the dust cover (501) through the cooperation of the mounting sleeve (107) and the mounting ring (504).

6. The automatically adjustable oxygen mask according to claim 1, characterized in that: An evaporating cotton (602) is arranged inside the lower part of the mixer (103), and the evaporating cotton (602) is evenly filled inside the mixer (103). A liquid supply tank (601) is threadedly mounted on the side of the mixer (103), and a liquid outlet of the liquid supply tank (601) is arranged through the side wall of the mixer (103). The liquid supply tank (601) is arranged corresponding to the evaporating cotton (602), and the liquid supply tank (601) is used to transport internal liquid to the evaporating cotton (602) for evaporation.

7. The automatically adjustable oxygen mask according to claim 1, characterized in that: Also includes: The collecting sponge (700) is a thin sheet structure, and the collecting sponge (700) fits with the inner wall of the mask body (101). The collecting sponge (700) is used to collect liquid condensed on the inner wall of the mask body (101).

8. The automatically adjustable oxygen mask according to claim 1, characterized in that: Also includes: A rubber ring (800), wherein the rubber ring (800) is arranged at the edge of the mask body (101), and the rubber ring (800) is used to cushion between the mask body (101) and the patient's face, and the rubber ring (800) is used to improve the sealing performance of the mask body (101).

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