A simple respirator

Abstract

The present invention discloses a simple respirator, and relates to the technical field of respirators. The present invention comprises a respirator bracket, an airbag compartment is fixedly installed on the top of the respirator bracket, air supply balloons are fixedly installed on both sides of the airbag compartment, an air intake valve is fixedly installed on one end of the air supply balloon, an air storage valve and an oxygen tube are fixedly installed on one side of the air intake valve, the two air storage valves and one end of the two oxygen tubes are fixedly installed with the same oxygen storage bag, and the other end of the two air supply balloons is fixedly installed with the same three-way air supply pipe. By arranging two air supply balloons, the present invention can press the corresponding air supply balloon to assist the patient's breathing. Since the two air supply balloons and the paired pressure valves, control valves and other components have different specifications, the air supply volume each time can correspond to the air supply volume of adults and children respectively, and the respirators of different specifications are integrated into the same respirator, effectively avoiding the risk of incomplete respirator equipment during rescue.

Description

Technical Field

[0001] The present invention relates to the technical field of respirators, in particular to a simple respirator. Background Art

[0002] The simple respirator, also known as a pressurized oxygen bag, is the simplest first aid device for maintaining artificial ventilation. It is portable and easy to use, and can be used for ventilation with or without an oxygen source. It is often used in important occasions such as on-site first aid and transfer of critically ill patients in hospitals. The simple respirator consists of ten components: a mask, a one-way valve (duckbill valve), an exhalation valve, a pressure safety valve, a ball / airbag, an air inlet valve, an air storage valve, an oxygen storage safety valve, an oxygen storage bag, and an oxygen connection port. When the operator squeezes the airbag, the gas in the airbag passes through the one-way valve, through the mask or endotracheal tube, into the patient's respiratory tract, supplying oxygen to patients with respiratory dysfunction, playing the role of artificial respiration, and effectively improving the patient's respiratory function.

[0003] According to the standard "Special Requirements for Simple Respirators", there are three types of simple respirators: for infants, children and adults. The air bag volumes are approximately 280ml, 500ml and 1500ml respectively. There are large differences in tidal volume, frequency and airway pressure among different age groups: for adults > 600ml, 10-12 times / min, and pressure < 60cmH20; the tidal volume for infants is 15ml / kg, the frequency for children is 16-20 times / min, for infants is 35 times / min, and the pressure is < 40cmH20.

[0004] Since the air supply volume for adults and children is different, the existing simple respirators are generally equipped with different air bags and masks respectively, and medical staff are required to press the air bags at different frequencies and strengths. When performing pre-hospital emergency treatment, if the patient's condition is not clear or there are many casualties in a large accident, it is necessary to equip both adult and child simple respirators. On the one hand, the devices may not be fully equipped, delaying the rescue time and endangering the patient's life. On the other hand, it increases the workload and difficulty of the medical staff. Therefore, a simple respirator is proposed. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that when performing pre-hospital emergency treatment, if the patient's condition is not clear or there are many casualties in a large accident, it is necessary to equip both adults and children with simple respirators. On the one hand, the equipment may not be fully equipped, delaying the rescue time and endangering the patient's life. Secondly, it increases the workload and work difficulty of medical staff. The present invention provides a simple respirator.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] A simple respirator comprises a respirator bracket, an airbag compartment is fixedly installed on the top of the respirator bracket, a supply balloon is fixedly installed on both sides of the airbag compartment, an air intake valve is fixedly installed on one end of the supply balloon, an air storage valve and an oxygen tube are fixedly installed on one side of the air intake valve, the same oxygen storage bag is fixedly installed on one end of two of the air storage valves and two of the oxygen tubes, the same three-way air supply pipe is fixedly installed on the other ends of the two supply balloons, pressure valves and control valves are arranged on both ends of the three-way air supply pipe close to the two supply balloons, a one-way valve is fixedly installed on one end of the three-way air supply pipe away from the supply balloon, and a mask assembly is arranged on the bottom end of the one-way valve;

[0008] The mask assembly is used to be adjusted into two types of masks, one for children and one for adults, according to the age of the patient;

[0009] The mask assembly includes a butt joint tube which is sleeved on the bottom end of the one-way valve, an inner ring airbag cover is fixedly installed on the bottom end of the butt joint tube, a first shaping ring is fixedly installed on the bottom of the inner ring airbag cover, an outer ring airbag cover is fixedly installed on the bottom of the first shaping ring, a second shaping ring is fixedly installed on the bottom of the outer ring airbag cover, a connecting pipe and an air blowing pipe are fixedly installed on the top of the inner ring airbag cover, an interface which is compatible with the connecting pipe is opened on the top of the outer ring airbag cover, plug covers which are compatible with the connecting pipe and the air blowing pipe are bolted on one side of the connecting pipe and the air blowing pipe respectively, a plurality of plastic strips are fixedly installed between the butt joint tube and the first shaping ring, and between the first shaping ring and the second shaping ring, and the plurality of plastic strips are respectively located inside the inner ring airbag cover and the outer ring airbag cover and are evenly distributed along the axis of the butt joint tube.

[0010] Furthermore, a direction-adjusting rotating rod is rotatably installed on the top of the respirator bracket, and the top and bottom ends of the direction-adjusting rotating rod are fixedly sleeved with a hanging bracket, and a micro-electric push rod is rotatably installed on the side where the two hanging brackets are close to each other, and the telescopic ends of the two micro-electric push rods are close to each other and fixedly installed with push air pressure plates, and the two air supply balloons are located between the two push air pressure plates, and a fixed bracket is fixedly installed on the top of the respirator bracket, and a positioning sleeve is fixedly installed on one side of the fixed bracket, and the direction-adjusting rotating rod is rotatably installed inside the positioning sleeve, and limiting brackets are fixedly installed on both sides of the top and bottom ends of the positioning sleeve, and a limiting guide rod is fixedly installed between the two limiting brackets on the same side, and the two limiting guide rods are respectively located on one side of the top and bottom end of the positioning sleeve, and a positioning telescopic rod is fixedly installed on the side of the micro-electric push rod close to the direction-adjusting rotating rod, and a limiting sliding sleeve is fixedly installed on the telescopic end of the positioning telescopic rod, and the two limiting sliding sleeves are respectively slidably sleeved on the two limiting guide rods.

[0011] Furthermore, a suspension plate is fixedly installed on one side of the limit frame, a side magnetic plate and a frequency modulation switch are fixedly installed on the side of the suspension plate close to the limit sleeve, and a magnetic block is fixedly installed on the side where the two limit sleeves are close to each other, and the magnetic blocks located on the same side correspond to the positions of the side magnetic plate and the frequency modulation switch.

[0012] Furthermore, a positive magnetic attraction plate is fixedly mounted on the top and bottom of the airbag compartment, and the positive magnetic attraction plate corresponds to the position of the push air pressure plate.

[0013] Furthermore, a plurality of evenly distributed friction strips are fixedly mounted on the circumferential side of the air supply balloon.

[0014] Furthermore, a nozzle is bolted to one side of the air blowing tube, and the nozzle is adapted to the air blowing tube.

[0015] Furthermore, a plurality of inner circle Velcros are fixedly mounted on the top of the inner circle airbag cover, and a plurality of outer circle Velcros are fixedly mounted on the top of the outer circle airbag cover, and positions of the outer circle Velcros correspond to those of the inner circle Velcros.

[0016] Furthermore, an elastic loop is provided at the bottom of the outer ring airbag cover, and two ends of the elastic loop are respectively fixedly mounted on two sides of the top of the outer ring airbag cover, and the two ends of the elastic loop are respectively located between two adjacent outer ring Velcros.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The present invention provides two air supply balloons. When in use, the corresponding air supply balloon can be pressed to assist the patient's breathing. Since the two air supply balloons and the matching pressure valves, control valves and other valve components have different specifications, the air delivery volume of the two air supply balloons can correspond to the air supply volume of adults and children respectively, integrating the original respirators of different specifications into the same respirator, effectively avoiding the risk of incomplete respirator equipment during the rescue process;

[0019] 2. The present invention provides a mask assembly so that when facing an adult patient, the inner circle airbag cover and the outer circle airbag cover can be inflated to form a bowl-shaped mask, and when facing a child patient, the connecting tube is pulled out from the interface, the outer circle airbag cover is folded on the top of the inner circle airbag cover, and the inner circle airbag cover is used alone as a mask, which reduces the volume of the mask, so that the mask assembly can be changed in shape and specifications according to the age of the patient;

[0020] 3. The present invention provides a plastic strip so that after the mask assembly is inflated and unfolded, the inner circle airbag cover and the outer circle airbag cover can be adjusted to a desired shape by bending a plurality of plastic strips and the first shaping ring and the second shaping ring, so that the inner circle airbag cover and the outer circle airbag cover (or a separate inner circle airbag cover) can better fit the patient's face shape, reduce gas leakage at the seam between the mask and the patient's face, and ensure the normal use of the respirator;

[0021] 4. The present invention sets a push air pressure plate, so that when it is necessary to press the gas supply balloon, the suspension frame can be rotated to make the two push air pressure plates move synchronously and parallel to the top and bottom of the gas supply balloon, and then the two micro electric push rods drive the two push air pressure plates to move up and down respectively, and the gas supply balloon is mechanically pressed instead of manual pressing, which can not only improve the precise control of gas delivery, but also reduce the fatigue intensity of medical staff;

[0022] 5. The present invention sets a frequency modulation switch so that when the air pressure plate moves toward the air supply balloons on both sides, the two magnetic blocks will contact the side magnetic suction plate and the frequency modulation switch on one side, so as to be adsorbed and fixed by the side magnetic suction plate, effectively avoiding the air pressure plate from slipping and affecting the accuracy of air supply control. At the same time, the frequency modulation switch there will be triggered to adjust the pressing frequency and pressing depth of the current air pressure plate, so as to adjust and control the air supply;

[0023] 6. The present invention sets a positive magnetic suction plate to rotate the air pressure plate to the position between the two air supply balloons, and then the two micro electric push rods drive the air pressure plate to contact the two positive magnetic suction plates, so that the air pressure plate is adsorbed and fixed by the positive magnetic suction plates, thereby preventing the two air pressure plates from shaking, making it convenient to store. At the same time, after the air pressure plate is fixed, it is convenient for medical staff to manually press the air supply balloon, meeting the various use requirements of the respirator;

[0024] 7. The present invention provides a mouthpiece so that when there is no inflation tool at the emergency scene, the mouthpiece on one side of the air blowing tube can be removed and inserted into one end of the air blowing tube, so that the mouthpiece and the air blowing tube are connected, and then the medical staff blows air into the inner circle airbag cover and the outer circle airbag cover through the mouthpiece and the air blowing tube to achieve emergency inflation of the outer circle Velcro and the outer circle airbag cover, thereby avoiding affecting the emergency work;

[0025] 8. The present invention provides inner and outer Velcros, so that when the mask assembly is replaced from adult specifications to children specifications, the deflated outer airbag cover can be folded on top of the inner airbag cover, and the inner Velcro and the outer Velcro are butted and adhered to each other to fix the outer airbag cover, thereby avoiding affecting the normal use of the mask assembly;

[0026] 9. The present invention provides an elastic loop so that the elastic loop can be sleeved on the patient's head, so that the shaped mask assembly can fit the patient's face closely under the elastic action of the elastic loop. At the same time, after the outer ring airbag cover is folded and fixed on the inner ring airbag cover, parts of the two ends of the elastic loop will also be folded on the top of the inner ring airbag cover, thereby shortening the length of the elastic loop and making the length of the elastic loop more suitable for the child's head shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the three-dimensional structure of the cooperation between the respirator support and the air supply balloon of the present invention;

[0029] Figure 3 It is a schematic diagram of the three-dimensional structure of the air-feeding balloon of the present invention;

[0030] Figure 4 It is a schematic diagram of the three-dimensional structure of the mask assembly of the present invention;

[0031] Figure 5 It is a schematic diagram of the internal three-dimensional structure of the inner ring airbag cover and the outer ring airbag cover of the present invention;

[0032] Figure 6 It is a schematic diagram of the three-dimensional structure of the respiratory apparatus bracket and the micro electric push rod of the present invention;

[0033] Figure 7 It is a schematic diagram of the three-dimensional structure of the steering rod and the micro electric push rod of the present invention;

[0034] Figure 8 It is a schematic diagram of the three-dimensional structure of the positioning sleeve and the limiting guide rod of the present invention;

[0035] Figure numerals: 1, respirator bracket; 2, airbag compartment; 3, air supply airbag; 301, friction strip; 4, air inlet valve; 5, air storage valve; 6, oxygen pipe; 7, oxygen storage bag; 8, three-way air supply pipe; 9, pressure valve; 10, control valve; 11, one-way valve; 12, butt joint; 13, inner ring airbag cover; 14, first shaping ring; 15, outer ring airbag cover; 16, second shaping ring; 17, connecting pipe; 18, blowing pipe; 19, plug cover; 20, plastic 1. The first part is the first part of the second part. The second part is the second part of the second part. The first part is the second part of the second part. The second part is the second part of the second part. The second part is the second part of the second part. The third part is the second part of the second part. The fourth part is the second part of the second part. The fourth part is the second part of the second part. The fifth part is the second part of the second part. The fifth part is the second part of the second part. The sixth part is the second part of the second part. The seventh part is the second part of the second part. The eighth part is the second part of the second part. The eighth part is the second part of the second part. The eighth part is the second part of the second part. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0039] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] like Figures 1 to 8 As shown, a simple respirator includes a respirator bracket 1, as shown in Figure 3 As shown, an airbag compartment 2 is fixedly installed on the top of the respirator bracket 1, and air supply balloons 3 are fixedly installed on both sides of the airbag compartment 2. An air intake valve 4 is fixedly installed on one end of the air supply balloon 3, and an air storage valve 5 and an oxygen tube 6 are fixedly installed on one side of the air intake valve 4. Figure 1As shown, one end of the two gas storage valves 5 and the two oxygen tubes 6 is fixedly installed with the same oxygen storage bag 7, and the other end of the two air supply balloons 3 is fixedly installed with the same three-way air supply pipe 8. Pressure valves 9 and control valves 10 are arranged on both ends of the three-way air supply pipe 8 near the two air supply balloons 3. In this embodiment, the insides of the two control valves 10 are provided with cut-off switches for controlling the connection between the two air supply balloons 3 and the three-way air supply pipe 8. A one-way valve 11 is fixedly installed at one end of the three-way air supply pipe 8 away from the air supply balloon 3, and a mask assembly is arranged at the bottom of the one-way valve 11. Specifically, the simple respirator is used for adults and children respectively by arranging two air supply balloons 3. When in use, the shape of the mask assembly can be changed according to the age of the patient, and then the corresponding air supply balloon 3 can be pressed, so that the mixed tidal gas can be sequentially delivered to the inside of the mask assembly through the air inlet valve 4, the positive magnetic suction plate 39, the control valve 10, the three-way air supply pipe 8 and the one-way valve 11 to assist the patient's breathing. Since the specifications of the two air supply balloons 3 and the matching pressure valve 9, the control valve 10 and other valve components are different, the air supply volume of the two air supply balloons 3 each time can correspond to the air supply volume of adults and children respectively, and the original respirators of different specifications are integrated into the same respirator, effectively avoiding the risk of incomplete respirator equipment during rescue;

[0041] The mask assembly is used to be adjusted into two types of masks, one for children and one for adults, according to the age of the patient;

[0042] like Figure 4 As shown, the mask assembly includes a butt joint 12 which is sleeved on the bottom end of the one-way valve 11, an inner ring airbag cover 13 is fixedly installed on the bottom end of the butt joint 12, a first shaping ring 14 is fixedly installed on the bottom of the inner ring airbag cover 13, an outer ring airbag cover 15 is fixedly installed on the bottom of the first shaping ring 14, a second shaping ring 16 is fixedly installed on the bottom of the outer ring airbag cover 15, a connecting pipe 17 and an air blowing pipe 18 are fixedly installed on the top of the inner ring airbag cover 13, an interface which is compatible with the connecting pipe 17 is opened on the top of the outer ring airbag cover 15, and a plug cover 19 which is compatible with the connecting pipe 17 and the air blowing pipe 18 is bolted on one side of the connecting pipe 17 and the air blowing pipe 18, as shown in FIG. Figure 5As shown, a plurality of plastic strips 20 are fixedly installed between the butt joint pipe 12 and the first shaping ring 14, and between the first shaping ring 14 and the second shaping ring 16. The plurality of plastic strips 20 are respectively located inside the inner ring airbag cover 13 and the outer ring airbag cover 15 and are evenly distributed along the axis of the butt joint pipe 12. In this embodiment, the interface between one end of the connecting pipe 17 and the top of the outer ring airbag cover 15 can be glued by medical tape to improve the sealing performance. Specifically, by setting the mask assembly, when facing In case of adult patients, the inner circle airbag cover 13 can be inflated directly through the air blowing tube 18, and the inflated gas will be transported to the outer circle airbag cover 15 through the connecting tube 17, so that the originally folded and deflated inner circle airbag cover 13 and the outer circle airbag cover 15 will swell to form a bowl-shaped mask, and then the plug cover 19 will be inserted into one end of the air blowing tube 18 to close the inner circle airbag cover 13. In case of child patients, the connecting tube 17 is pulled out from the interface at the top of the outer circle airbag cover 15, and then the other plug cover 19 is inserted to close the connecting tube The outer ring airbag cover 15 is closed by folding the outer ring airbag cover 15 on the top of the inner ring airbag cover 13, so that the inner ring airbag cover 13 can be used as a mask alone, thereby reducing the volume of the mask, making the mask adaptable to the face shape of children, and making the mask assembly change the shape and specification according to the age of the patient, thereby improving the application range of the respirator. By setting the plastic strip 20, after the mask assembly is inflated and unfolded, the inner ring airbag cover 13 and the outer ring airbag cover are discharged. The excess gas in 15 prevents the inner circle airbag cover 13 and the outer circle airbag cover 15 from being too inflated. At the same time, by bending multiple plastic strips 20 and the first shaping ring 14 and the second shaping ring 16, the inner circle airbag cover 13 and the outer circle airbag cover 15 can be adjusted to a required shape, so that the inner circle airbag cover 13 and the outer circle airbag cover 15 (or a single inner circle airbag cover 13) can better fit the patient's face shape, reduce gas leakage at the seam between the mask and the patient's face, and ensure the normal use of the respirator.

[0043] like Figure 6 As shown, a steering rod 25 is rotatably installed on the top of the respirator bracket 1, and a suspension frame 26 is fixedly sleeved on the top and bottom ends of the steering rod 25. A micro-electric push rod 27 is rotatably installed on the side where the two suspension frames 26 are close to each other. The telescopic ends of the two micro-electric push rods 27 are close to each other and are fixedly installed with a push air pressure plate 28. The two air supply balloons 3 are located between the two push air pressure plates 28. A fixed bracket 29 is fixedly installed on the top of the respirator bracket 1, and a positioning sleeve 30 is fixedly installed on one side of the fixed bracket 29. The steering rod 25 is rotatably installed inside the positioning sleeve 30, and limit frames 31 are fixedly installed on both sides of the top and bottom ends of the positioning sleeve 30. Figure 8 As shown, a limiting guide rod 32 is fixedly installed between the two limiting frames 31 on the same side, and the two limiting guide rods 32 are respectively located on the top and bottom sides of the positioning sleeve 30. Figure 7As shown, a positioning telescopic rod 33 is fixedly installed on one side of the micro-electric push rod 27 close to the direction-adjusting rotating rod 25, and a limiting sleeve 34 is fixedly installed on the telescopic end of the positioning telescopic rod 33, and the two limiting sleeves 34 are respectively slidably sleeved on the two limiting guide rods 32; specifically, by setting a push air pressure plate 28, when it is necessary to press the air supply balloon 3, the suspension frame 26 can be rotated so that it can drive the upper and lower push air pressure plates 28 to rotate synchronously to the position designated for the air supply balloon 3 through the direction-adjusting rotating rod 25, and the push air pressure plate 28 will move parallel to the top and bottom of the air supply balloon 3 under the limiting action of the positioning telescopic rod 33, the limiting sleeve 34 and the limiting guide rod 32, and then the two micro-electric push rods 27 respectively drive the two push air pressure plates 28 to move up and down, and mechanically press the air supply balloon 3 instead of manual pressing, which can not only improve the precise control of the gas supply volume, but also reduce the fatigue intensity of medical staff.

[0044] like Figure 8 As shown, a suspension plate 36 is fixedly installed on one side of the limit frame 31, and a side magnetic suction plate 37 and a frequency modulation switch 38 are fixedly installed on the side of the suspension plate 36 close to the limit sliding sleeve 34. Figure 7 As shown, a magnetic block 35 is fixedly installed on one side of the two limit sleeves 34 close to each other. The magnetic block 35 located on the same side corresponds to the position of the side magnetic suction plate 37 and the frequency modulation switch 38. In this embodiment, the frequency modulation switch 38 located on the same side is electrically connected to the micro electric push rod 27, and the frequency modulation switch 38 is connected to the single-chip microcomputer. The output frequency of the micro electric push rod 27 is selected by touching different frequency modulation switches 38. The output frequencies controlled by the two frequency modulation switches 38 are respectively suitable for children and adults. Specifically, by setting the frequency modulation switch 38, when the air pressure plate 28 is pushed to the sides respectively, the output frequency of the micro electric push rod 27 is selected. When the air supply balloon 3 moves, the two magnetic blocks 35 will contact the side magnetic plate 37 and the frequency modulation switch 38 on one side as the limiting sleeve 34 slides on the limiting guide rod 32, and are thereby adsorbed and fixed by the side magnetic plate 37, effectively preventing slippage in the process of the air pressure plate 28 pressing the air supply balloon 3, which would affect the accuracy of air supply control. At the same time, the frequency modulation switch 38 there will be triggered, causing the frequency modulation switch 38 to adjust the current travel frequency and travel range of the micro electric push rod 27 through the single chip microcomputer, that is, adjust the current pressing frequency and pressing depth of the air pressure plate 28, so as to adjust and control the air supply volume.

[0045] like Figure 3As shown, positive magnetic attraction plates 39 are fixedly installed on the top and bottom of the airbag compartment 2, and the positive magnetic attraction plates 39 correspond to the positions of the push air pressure plates 28. In the present embodiment, the push air pressure plates 28 are made of magnetic metal, or a magnetic metal sheet can be arranged inside the push air pressure plates 28; specifically, by arranging the positive magnetic attraction plates 39, when the simple respirator is idle, the push air pressure plates 28 can be rotated to the position between the two air supply balloons 3, and then the two micro electric push rods 27 are extended to drive the push air pressure plates 28 to press against the airbag compartment 2, and respectively contact the two positive magnetic attraction plates 39, so as to be adsorbed and fixed by the positive magnetic attraction plates 39, thereby preventing the two push air pressure plates 28 from shaking, and facilitating storage. At the same time, after the push air pressure plates 28 are fixed, it is convenient for medical staff to manually press the air supply balloon 3, thereby meeting the various usage requirements of the respirator.

[0046] like Figure 3 As shown, a plurality of evenly distributed friction strips 301 are fixedly installed around the circumference of the gas-charging balloon 3; specifically, by providing the friction strips 301, the friction strips 301 can increase the friction force of holding the gas-charging balloon 3, making it convenient for medical staff to hold the gas-charging balloon 3 and press it.

[0047] like Figure 4 As shown, a nozzle 21 is bolted to one side of the air blowing tube 18, and the nozzle 21 is adapted to the air blowing tube 18; specifically, by providing the nozzle 21, when there is no inflation tool at the first aid site, the nozzle 21 on one side of the air blowing tube 18 can be removed and inserted into one end of the air blowing tube 18, so that the nozzle 21 and the air blowing tube 18 are connected, and then the medical staff blows air into the inner ring airbag cover 13 and the outer ring airbag cover 15 through the nozzle 21 and the air blowing tube 18, so as to realize emergency inflation of the outer ring Velcro 23 and the outer ring airbag cover 15, and avoid affecting the first aid work.

[0048] like Figure 4 As shown, a plurality of inner circle Velcro 22 are fixedly installed on the top of the inner circle airbag cover 13, and a plurality of outer circle Velcro 23 are fixedly installed on the top of the outer circle airbag cover 15. The positions of the outer circle Velcro 23 and the inner circle Velcro 22 correspond to each other. In this embodiment, the inner circle Velcro 22 and the outer circle Velcro 23 can be the hook surface and the fleece surface of the same group of Velcro respectively; specifically, by arranging the inner circle Velcro 22 and the outer circle Velcro 23, when the mask assembly is replaced from the adult specification to the child specification, the deflated outer circle airbag cover 15 can be folded on the top of the inner circle airbag cover 13, and the inner circle Velcro 22 and the outer circle Velcro 23 are connected and adhered to each other, so as to fix the outer circle airbag cover 15 and avoid affecting the normal use of the mask assembly.

[0049] like Figure 4As shown, an elastic loop 24 is provided at the bottom of the outer ring airbag cover 15, and two ends of the elastic loop 24 are respectively fixedly installed on both sides of the top of the outer ring airbag cover 15, and the two ends of the elastic loop 24 are respectively located between two adjacent outer ring Velcros 23; specifically, by providing the elastic loop 24, the elastic loop 24 can be sleeved on the patient's head, so that the shaped mask assembly can fit the patient's face tightly under the elastic action of the elastic loop 24, and at the same time, after the outer ring airbag cover 15 is folded and fixed on the inner ring airbag cover 13, a part of the two ends of the elastic loop 24 will also be folded on the top of the inner ring airbag cover 13, thereby shortening the length of the elastic loop 24, so that the length of the elastic loop 24 can be more suitable for the child's head shape.

[0050] In summary: Selection of the balloon 3: Rotate the hanging frame 26 to drive the upper and lower push air pressure plates 28 to rotate synchronously to the positions designated for the balloon 3 through the turning rod 25. The push air pressure plates 28 will move parallel to the top and bottom of the balloon 3 designated for the balloon under the limiting action of the positioning telescopic rod 33, the limiting sliding sleeve 34 and the limiting guide rod 32;

[0051] Adjustment of pressing frequency: When the air pressure plate 28 moves toward the air supply balloon 3 on both sides respectively, the two magnetic blocks 35 will contact the side magnetic plate 37 and the frequency modulation switch 38 on one side as the limiting sliding sleeve 34 slides on the limiting guide rod 32, and are thus adsorbed and fixed by the side magnetic plate 37, effectively avoiding slippage in the process of the air pressure plate 28 pressing the air supply balloon 3, which affects the accuracy of air supply control. At the same time, the frequency modulation switch 38 there will be triggered, so that the frequency modulation switch 38 adjusts the current travel frequency and travel range of the micro electric push rod 27 through the single chip microcomputer, that is, adjusts the pressing frequency and pressing depth of the current air pressure plate 28, so as to adjust and control the air supply amount;

[0052] Adjustment of the mask assembly: When facing an adult patient, the inner circle airbag cover 13 can be inflated directly through the air blowing tube 18, and the inflated gas will be transported to the outer circle airbag cover 15 through the connecting tube 17, so that the originally folded and deflated inner circle airbag cover 13 and outer circle airbag cover 15 will swell to form a bowl-shaped mask, and then the plug cover 19 will be inserted into one end of the air blowing tube 18 to close the inner circle airbag cover 13. When facing a child patient, the connecting tube 17 is pulled out from the interface at the top of the outer circle airbag cover 15, and then the other plug cover 19 is used to close the connecting tube 17, so that the outer circle airbag cover 15 remains deflated, and then the outer circle airbag cover 15 is closed. Folding on the top of the inner circle airbag cover 13, the inner circle airbag cover 13 is used as a mask alone, thereby reducing the volume of the mask so that the mask can be adapted to the face shape of children. At the same time, the excess gas in the inner circle airbag cover 13 and the outer circle airbag cover 15 is discharged so that the inner circle airbag cover 13 and the outer circle airbag cover 15 will not be too bulging. At the same time, by bending a plurality of plastic strips 20 and the first shaping ring 14 and the second shaping ring 16, the inner circle airbag cover 13 and the outer circle airbag cover 15 can be adjusted into a desired shape so that the inner circle airbag cover 13 and the outer circle airbag cover 15 (or the inner circle airbag cover 13 alone) can better fit the patient's face shape;

[0053] Use of the respirator: Put the elastic rope 24 on the patient's head so that the shaped mask assembly fits tightly to the patient's face under the elastic effect of the elastic rope 24. Two miniature electric push rods 27 drive the two air pressure plates 28 to move up and down respectively, and mechanically press the air supply balloon 3 instead of manual pressing, so that the mixed tidal gas can be transported to the inside of the mask assembly through the air inlet valve 4, the positive magnetic suction plate 39, the control valve 10, the three-way air supply pipe 8 and the one-way valve 11 in sequence to assist the patient's breathing. Since the specifications of the two air supply balloons 3 and the matching pressure valves 9, control valves 10 and other valve components are different, the air supply volume of the two air supply balloons 3 each time can correspond to the air supply volume of adults and children respectively.

[0054] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A simple respirator, characterized in that: It comprises a respirator support (1), wherein an airbag compartment (2) is fixedly mounted on the top of the respirator support (1), and a supply balloon (3) is fixedly mounted on both sides of the airbag compartment (2), and an air intake valve (4) is fixedly mounted on one end of the supply balloon (3), and an air storage valve (5) and an oxygen tube (6) are fixedly mounted on one side of the air intake valve (4), and the same oxygen storage bag (7) is fixedly mounted on one end of the two air storage valves (5) and the two oxygen tubes (6), and the same three-way air supply pipe (8) is fixedly mounted on the other end of the two supply balloons (3), and pressure valves (9) and control valves (10) are arranged on both ends of the three-way air supply pipe (8) close to the two supply balloons (3), and a one-way valve (11) is fixedly mounted on one end of the three-way air supply pipe (8) away from the supply balloon (3), and a mask assembly is arranged on the bottom end of the one-way valve (11); The mask assembly is used to be adjusted into two types of masks, one for children and one for adults, according to the age of the patient; The mask assembly comprises a butt joint pipe (12) sleeved on the bottom end of the one-way valve (11), an inner ring airbag cover (13) is fixedly mounted on the bottom end of the butt joint pipe (12), a first shaping ring (14) is fixedly mounted on the bottom of the inner ring airbag cover (13), an outer ring airbag cover (15) is fixedly mounted on the bottom of the first shaping ring (14), a second shaping ring (16) is fixedly mounted on the bottom of the outer ring airbag cover (15), a connecting pipe (17) and an air blowing pipe (18) are fixedly mounted on the top of the inner ring airbag cover (13), and a connecting pipe (17) and an air blowing pipe (18) are fixedly mounted on the top of the outer ring airbag cover (15). The connecting pipe (17) is adapted to an interface, and one side of the connecting pipe (17) and the blowing pipe (18) is bolted with a plug cover (19) adapted to the connecting pipe (17) and the blowing pipe (18) respectively. A plurality of plastic strips (20) are fixedly installed between the butt joint pipe (12) and the first shaping ring (14), and between the first shaping ring (14) and the second shaping ring (16). The plurality of plastic strips (20) are respectively located inside the inner ring airbag cover (13) and the outer ring airbag cover (15) and are evenly distributed along the axis of the butt joint pipe (12).

2. A simple respirator according to claim 1, characterized in that: A turning rod (25) is rotatably mounted on the top of the respirator bracket (1), and a suspension frame (26) is fixedly sleeved on the top and bottom ends of the turning rod (25). A micro-electric push rod (27) is rotatably mounted on the side where the two suspension frames (26) are close to each other. The telescopic ends of the two micro-electric push rods (27) are close to each other and are fixedly mounted with a push air pressure plate (28). The two air supply balloons (3) are located between the two push air pressure plates (28). A fixed bracket (29) is fixedly mounted on the top of the respirator bracket (1), and a positioning sleeve (30) is fixedly mounted on one side of the fixed bracket (29). The turning rod (25) is rotatably mounted on the side where the two suspension frames (26) are close to each other. The micro electric push rod (27) is movably mounted inside the positioning sleeve (30), and both sides of the top and bottom ends of the positioning sleeve (30) are fixedly mounted with limit frames (31), and a limit guide rod (32) is fixedly mounted between two limit frames (31) located on the same side. The two limit guide rods (32) are respectively located on the top and bottom ends of the positioning sleeve (30), and a positioning telescopic rod (33) is fixedly mounted on one side of the micro electric push rod (27) close to the direction-adjusting rotating rod (25). The telescopic ends of the positioning telescopic rod (33) are fixedly mounted with limit sliding sleeves (34), and the two limit sliding sleeves (34) are respectively slidably sleeved on the two limit guide rods (32).

3. A simple respirator according to claim 2, characterized in that: A suspension plate (36) is fixedly mounted on one side of the limit frame (31); a side magnetic attraction plate (37) and a frequency modulation switch (38) are fixedly mounted on the side of the suspension plate (36) close to the limit sleeve (34); a magnetic block (35) is fixedly mounted on the side of the two limit sleeves (34) close to each other; the magnetic block (35) located on the same side corresponds to the position of the side magnetic attraction plate (37) and the frequency modulation switch (38).

4. A simple respirator according to claim 2, characterized in that: A positive magnetic attraction plate (39) is fixedly mounted on the top and bottom of the airbag compartment (2), and the position of the positive magnetic attraction plate (39) corresponds to that of the air pressure plate (28).

5. A simple respirator according to claim 1, characterized in that: A plurality of evenly distributed friction strips (301) are fixedly mounted on the circumference of the air supply balloon (3).

6. A simple respirator according to claim 1, characterized in that: A blowing nozzle (21) is bolted to one side of the blowing tube (18), and the blowing nozzle (21) is adapted to the blowing tube (18).

7. A simple respirator according to claim 1, characterized in that: A plurality of inner circle Velcro strips (22) are fixedly mounted on the top of the inner circle airbag cover (13), and a plurality of outer circle Velcro strips (23) are fixedly mounted on the top of the outer circle airbag cover (15), wherein the positions of the outer circle Velcro strips (23) and the inner circle Velcro strips (22) correspond to each other.

8. A simple respirator according to claim 7, characterized in that: An elastic loop (24) is provided at the bottom of the outer ring airbag cover (15), and two ends of the elastic loop (24) are respectively fixedly mounted on two sides of the top of the outer ring airbag cover (15), and the two ends of the elastic loop (24) are respectively located between two adjacent outer ring Velcro strips (23).

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