Positive pressure type air respirator first-aid device

Abstract

The invention relates to the technical field of first-aid devices, and discloses a positive pressure type air respirator first-aid device which comprises a mask, an adjusting shell is fixedly connected to the bottom of the mask, an air delivery pipe is installed on the inner wall of the adjusting shell, an adapter pipe fixedly communicates with the rear portion of the air delivery pipe, and an oxygen tank is installed at the top of the adapter pipe. According to the medical oxygen-saving mask, oxygen in the mask can enter the lungs of a victim, then the victim can be effectively rescued, the size of an opening in the adjusting shell is adjusted through the threaded rod, and the medical oxygen-saving mask is convenient to use. Through the arrangement of the warning rod, firefighters can change at any time according to different conditions, meanwhile, the firefighters can quickly and conveniently judge the wearing condition of the mask according to the swinging condition of the warning rod, and external toxic gas is prevented from being inhaled by victims.

Description

Technical Field

[0001] The present invention relates to the technical field of first aid devices, and particularly to a positive pressure air breathing apparatus first aid device. Background Art

[0002] The positive pressure air breathing apparatus can provide clean and safe air for firefighters, enabling them to breathe normally in a toxic and harmful gas environment. It delivers high-pressure air to the face mask after decompression through its own compressed air source for firefighters to use.

[0003] The patent with the publication number CN208065592U relates to a positive pressure air breathing apparatus box, including: a hollow housing, the housing includes a back plate and an upper cover plate, a lower cover plate, a left cover plate and a right cover plate that are rotatably connected to the back plate. The upper cover plate is provided with a first hook for hanging the face mask of the positive pressure air breathing apparatus; the inner walls of the left cover plate and the right cover plate are both provided with a second hook for hanging the shoulder straps of the positive pressure air breathing apparatus and a third hook for hanging the waist belt of the positive pressure air breathing apparatus; the back plate is provided with a fixing component for fixing the air cylinder of the positive pressure air breathing apparatus. The positive pressure air breathing apparatus box provided by this device solves the technical problems that it takes a long time and is laborious to take out the positive pressure air breathing apparatus from the existing positive pressure air breathing apparatus box for wearing, and it is easy to cause the positive pressure air breathing apparatus to be inaccurately worn. However, when a firefighter wears the face mask on the face of a victim, it is very difficult to judge whether the face mask is closely attached to the victim's face, and thus it is easy to occur that the face mask is not worn well and the toxic gas in the air is inhaled by the victim. Therefore, a positive pressure air breathing apparatus first aid device is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a positive pressure air breathing apparatus first aid device for the deficiencies in the above-mentioned prior art.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is: a positive pressure air breathing apparatus first aid device, including a face mask, the bottom of the face mask is fixedly connected with an adjustment shell, an air delivery pipe is installed on the inner wall of the adjustment shell, the rear part of the air delivery pipe is fixedly communicated with a rotary connection pipe, an oxygen cylinder is installed on the top of the rotary connection pipe, a back plate is fixedly connected to the right side of the rotary connection pipe, a threaded rod is rotatably connected to the inner wall of the adjustment shell, an L-shaped plate one is threadedly connected to the circumferential surface of the threaded rod, an exhaust valve is fixedly communicated with the inner wall of the face mask, an air outlet cover is fixedly connected to the front part of the face mask, a pressure gauge is fixedly connected to the right side of the adjustment shell, a rotating rod is rotatably connected to the inner wall of the air outlet cover, a warning rod is slidably connected to the inner wall of the air outlet cover, a ventilation mechanism for improving the exhaust effect is arranged at the rear part of the pressure gauge, a quick-release mechanism for quickly replacing in an emergency is arranged at the front part of the adjustment shell, a cam is fixedly connected to the circumferential surface of the rotating rod, a blade is fixedly connected to the circumferential surface of the rotating rod, a straight rod one is fixedly connected to the rear part of the L-shaped plate one, the inner wall of the adjustment shell is slidably connected to the surface of the L-shaped plate one, and the L-shaped plate one is used to control the size of the air inlet, and the adjustment shell will limit the L-shaped plate one to prevent it from rotating, the bottom of the warning rod is in contact with the circumferential surface of the cam, and the warning rod will move by being squeezed by the cam.

[0006] Preferably, the ventilation mechanism includes a straight plate two, which is fixedly connected to the inner wall of the straight plate two, a knocking rod is slidably connected to the inner wall of the straight plate two through a spring, an arc-shaped plate is fixedly connected to the rear part of the knocking rod, a U-shaped plate is fixedly connected to the rear part of the straight rod one, a brush plate is fixedly connected to the top of the U-shaped plate, a support plate is fixedly connected to the top of the U-shaped plate, a hose is fixedly communicated with the bottom of the pressure gauge, the rear part of the arc-shaped plate is in contact with the circumferential surface of the cam, and the knocking rod will contact the inner wall of the air outlet cover during the moving process, the right side of the pressure gauge is in contact with the left side of the brush plate, the rear part of the support plate is in contact with the front part of the brush plate, and the support plate is used to support the brush plate when it moves.

[0007] Preferably, the quick-release mechanism includes a connection shell, the connection shell is fixedly connected to the bottom of the adjustment shell, an L-shaped plate two is fixedly connected to the bottom of the U-shaped plate, a plug rod is fixedly connected to the inner wall of the L-shaped plate two, a limit plate is fixedly connected to the bottom of the adjustment shell, a sleeve is fixedly connected to the circumferential surface of the air delivery pipe, a fixed rod is fixedly connected to the front part of the connection shell through a spring, an L-shaped inclined plate is slidably connected to the circumferential surface of the fixed rod, the inner wall of the connection shell is fixedly communicated with the circumferential surface of the hose, and the hose will be used to convey gas into the pressure gauge, the plug rod will contact the inner wall of the limit plate during the moving process, and the rear part of the L-shaped inclined plate is in contact with the inner wall of the sleeve.

[0008] The present invention adopts the above technical solution, which can bring the following beneficial effects: 1. For the positive pressure air breathing apparatus first aid device, through the coordinated operation among the face mask, adjustment shell, air delivery pipe, adapter pipe, oxygen cylinder, backplate, threaded rod, first L-shaped plate, exhaust valve, air outlet cover, pressure gauge, rotating rod, warning rod, cam, blade, and first straight rod, the oxygen in the face mask can enter the lungs of the victim, thereby effectively rescuing the victim. The size of the opening inside the adjustment shell is adjusted by the threaded rod, enabling firefighters to adapt to different situations at any time. At the same time, firefighters can quickly and conveniently judge the wearing situation of the face mask according to the swinging of the warning rod, preventing toxic gases from the outside from being inhaled by the victim.

[0009] 2. For the positive pressure air breathing apparatus first aid device, through the coordinated operation among the second straight plate, knocking rod, and arc-shaped plate, after the face mask is worn, the movement of the knocking rod will impact the exhaust port of the ventilation opening of the air outlet cover, thereby shaking off the dust at the exhaust port, preventing excessive dust and impurities at the fire rescue site from causing excessive dust accumulation at the exhaust port of the face mask, which is likely to lead to poor exhaust, and ensuring that the person wearing the face mask can breathe normally.

[0010] 3. For the positive pressure air breathing apparatus first aid device, through the coordinated operation among the U-shaped plate, brush plate, support plate, and hose, when adjusting the opening size, the surface of the pressure gauge can be automatically wiped, preventing dust from covering the surface of the pressure gauge, which makes it difficult for firefighters to find time to wipe it. By wiping the dust, firefighters can promptly detect the pressure change and make timely adjustments.

[0011] 4. For the positive pressure air breathing apparatus first aid device, through the coordinated operation among the connecting shell, second L-shaped plate, and inserting rod, during adjustment, it is ensured that the face mask and the air delivery pipe can be firmly fixed, preventing the face mask from falling off during use.

[0012] 5. For the positive pressure air breathing apparatus first aid device, through the coordinated operation among the limiting plate, sleeve, fixed rod, and L-shaped inclined plate, and the L-shaped inclined plate can be stuck on the inner wall of the sleeve, thus quickly completing the installation between the face mask and the air delivery pipe. When the oxygen cylinder runs out of gas, it can be quickly replaced, enabling respiratory protection to be obtained in the shortest time. When disassembling, pulling the L-shaped inclined plate can release the limitation of the sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the structure of the air outlet cover of the present invention; Figure 3Half-sectional view of the threaded rod structure of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of the structure at position A in; Figure 5 Half-sectional view of the ventilation mechanism of the present invention; Figure 6 Half-sectional view of the quick-release mechanism of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of the structure at position B in.

[0014] In the figure: 1. Mask; 2. Adjusting shell; 3. Air delivery pipe; 4. Adapter pipe; 5. Oxygen tank; 6. Back plate; 7. Threaded rod; 8. First L-shaped plate; 9. Exhaust valve; 10. Air outlet cover; 11. Pressure gauge; 12. Rotating rod; 13. Warning rod; 14. Cam; 15. Blade; 16. First straight rod; 17. Ventilation mechanism; 171. Second straight plate; 172. Knocking rod; 173. Arc plate; 174. U-shaped plate; 175. Brush plate; 176. Support plate; 177. Hose; 18. Quick-release mechanism; 181. Connection shell; 182. Second L-shaped plate; 183. Insert rod; 184. Limiting plate; 185. Sleeve shell; 186. Fixed rod; 187. L-shaped inclined plate. Specific embodiments

[0015] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0016] Please refer to Figures 1 - 7, an embodiment of the present invention is: a positive pressure air breathing apparatus first aid device, including a face mask 1. A regulating shell 2 is fixedly connected to the bottom of the face mask 1. An air delivery pipe 3 is installed on the inner wall of the regulating shell 2. A rotary joint pipe 4 is fixedly communicated with the rear part of the air delivery pipe 3. An oxygen cylinder 5 is installed on the top of the rotary joint pipe 4. A back plate 6 is fixedly connected to the right side of the rotary joint pipe 4. A threaded rod 7 is rotatably connected to the inner wall of the regulating shell 2. An L-shaped plate 8 is threadedly connected to the circumferential surface of the threaded rod 7. An exhaust valve 9 is fixedly communicated with the inner wall of the face mask 1. An air outlet cover 10 is fixedly connected to the front part of the face mask 1. A pressure gauge 11 is fixedly connected to the right side of the regulating shell 2. A rotating rod 12 is rotatably connected to the inner wall of the air outlet cover 10. A warning rod 13 is slidably connected to the inner wall of the air outlet cover 10. A ventilation mechanism 17 for improving the exhaust effect is arranged at the rear part of the pressure gauge 11. A quick-release mechanism 18 for quickly replacing in case of emergency is arranged at the front part of the regulating shell 2. A cam 14 is fixedly connected to the circumferential surface of the rotating rod 12. A blade 15 is fixedly connected to the circumferential surface of the rotating rod 12. A straight rod 16 is fixedly connected to the rear part of the L-shaped plate 8. During fire fighting and rescue, the face mask 1 is worn on the face of the victim, making the face mask 1 closely fit the face of the victim. Then, the face mask 1 is fixed by a belt around the victim's head. At this time, the threaded rod 7 is rotated by turning the knob. The rotation of the threaded rod 7 drives the L-shaped plate 8 to move through the thread on its surface. The movement of the L-shaped plate 8 opens the hole inside the regulating shell 2, and the oxygen in the oxygen cylinder 5 is transported into the face mask 1 through the air delivery pipe 3, so that the oxygen in the face mask 1 can enter the lungs of the victim, and thus effective rescue can be carried out on the victim. The opening size inside the regulating shell 2 is also adjusted by the threaded rod 7, enabling firefighters to respond accordingly according to different situations; The inner wall of the adjusting shell 2 is slidably connected to the surface of the first L-shaped plate 8, and the first L-shaped plate 8 is used to control the size of the air inlet. The adjusting shell 2 limits the first L-shaped plate 8 to prevent it from rotating. The bottom of the warning rod 13 is in contact with the circumferential surface of the cam 14, and the warning rod 13 will move by being squeezed by the cam 14. After the victim wears the face mask 1, the movement of the first L-shaped plate 8 drives the first straight rod 16 to move. A sufficient amount of gas inside the face mask 1 will be discharged through the exhaust valve 9. The gas discharged by the exhaust valve 9 will blow the blades 15, causing the blades 15 to rotate and drive the rotating rod 12 to rotate. The rotation of the rotating rod 12 drives the cam 14 to rotate. The rotation of the cam 14 squeezes the warning rod 13, causing the warning rod 13 to move upward. When the convex part of the cam 14 turns to the bottom and is no longer in contact with the warning rod 13, the warning rod 13 will move downward due to gravity, enabling the warning rod 13 to move up and down reciprocally. If the face mask 1 is not worn tightly, the gas inside the face mask 1 will be discharged from the edge of the face mask 1. At this time, the gas inside the face mask 1 is not enough to drive the blades 15 to rotate, so that firefighters can quickly and conveniently judge the wearing situation of the face mask 1 according to the swinging of the warning rod 13, and avoid the inhalation of toxic gases from the outside by the victim; Overall working principle: During fire fighting and rescue operations, the face mask 1 is worn on the victim's face to make it close to the victim's face. Then, it is fixed by a belt around the victim's head. The opening size inside the adjusting shell 2 is adjusted by the threaded rod 7, enabling firefighters to adapt to different situations at any time. During the inhalation and exhalation processes, a smooth airflow can be felt, without the impact feeling caused by excessive airflow or the suffocating feeling caused by too little airflow, thus improving the comfort of breathing. At the same time, the exhaled gas inside the face mask 1 drives the warning rod 13 to move, so that when the face mask 1 is used on the victim, the tightness of the face mask 1 can be quickly judged to ensure that the victim can breathe normally and will not inhale the outside gas.

[0017] The ventilation mechanism 17 includes a second straight plate 171, which is fixedly connected to the inner wall of the second straight plate 171. A knocking rod 172 is slidably connected to the inner wall of the second straight plate 171 through a spring. An arc-shaped plate 173 is fixedly connected to the rear of the knocking rod 172. After the face mask 1 is worn, the rotation of the rotating rod 12 drives the cam 14 to rotate. The rotation of the cam 14 generates a squeezing force on the arc-shaped plate 173, causing the arc-shaped plate 173 to move forward under the squeezing force. The forward movement of the arc-shaped plate 173 drives the knocking rod 172 to move forward. During the movement of the knocking rod 172, it will impact the exhaust port of the ventilation port of the air outlet cover 10, thereby shaking off the dust at the exhaust port and avoiding the problem that excessive dust and impurities in the fire rescue site cause too much dust to accumulate at the exhaust port of the face mask 1, which is likely to lead to poor exhaust, so as to ensure that the person wearing the face mask 1 can breathe normally; A U-shaped plate 174 is fixedly connected to the rear part of the first straight rod 16. A brush plate 175 is fixedly connected to the top of the U-shaped plate 174. A support plate 176 is fixedly connected to the top of the U-shaped plate 174. A hose 177 is fixedly connected and communicated to the bottom of the pressure gauge 11. The rear part of the arc-shaped plate 173 is in contact with the circumferential surface of the cam 14, and the knocking rod 172 will contact the inner wall of the air outlet cover 10 during the movement. The right side of the pressure gauge 11 is in contact with the left side of the brush plate 175. The rear part of the support plate 176 is in contact with the front part of the brush plate 175, and the support plate 176 is used to support the brush plate 175 during its movement. When adjusting the opening of the air inlet of the adjusting shell 2, the movement of the first L-shaped plate 8 drives the first straight rod 16 to move. The movement of the first straight rod 16 drives the U-shaped plate 174 to move. The movement of the U-shaped plate 174 drives the brush plate 175 to move. Thus, when adjusting the size of the opening, the surface of the pressure gauge 11 can be automatically wiped, preventing dust from covering the surface of the pressure gauge 11 and making it difficult for firefighters to find time to wipe it. By wiping the dust, firefighters can promptly detect the change in pressure and make timely adjustments.

[0018] Overall working principle: After the mask 1 is worn, when the wearer breathes, the dust accumulated at the exhaust port will be automatically cleaned, preventing the exhaust port from being blocked and affecting normal breathing. At the same time, the surface of the pressure gauge 11 can be automatically wiped during adjustment, enabling firefighters to clearly observe the pressure situation when adjusting for the victim.

[0019] Please refer to Figures 1 - 7 In another embodiment of the present invention based on the above embodiment, the quick-release mechanism 18 includes a connection shell 181. The connection shell 181 is fixedly connected to the bottom of the adjusting shell 2. An L-shaped second plate 182 is fixedly connected to the bottom of the U-shaped plate 174. A plug rod 183 is fixedly connected to the inner wall of the L-shaped second plate 182. During adjustment, the movement of the U-shaped plate 174 drives the L-shaped second plate 182 to move. The movement of the L-shaped second plate 182 drives the plug rod 183 to move. When the plug rod 183 moves, it will be inserted into the limit plate 184, ensuring that the mask 1 and the air delivery pipe 3 can be firmly fixed after the mask 1 is installed, preventing the mask 1 from falling off during use. A limiting plate 184 is fixedly connected to the bottom of the adjusting shell 2. A sleeve shell 185 is fixedly connected to the circumferential surface of the air delivery pipe 3. A fixing rod 186 is fixedly connected to the front part of the connecting shell 181 through a spring. An L-shaped inclined plate 187 is slidably connected to the circumferential surface of the fixing rod 186. The inner wall of the connecting shell 181 is fixedly communicated with the circumferential surface of the hose 177, and the hose 177 is used to convey gas into the barometer 11. During the movement of the inserting rod 183, it will contact the inner wall of the limiting plate 184. The rear part of the L-shaped inclined plate 187 contacts the inner wall of the sleeve shell 185. At the same time, when installing the face mask 1 and the air delivery pipe 3, the sleeve shell 185 is aligned with the inner wall of the connecting shell 181 and inserted into the inner wall of the connecting shell 181. During the insertion of the sleeve shell 185 into the connecting shell 181, it will contact the L-shaped inclined plate 187 and exert a squeezing force on the L-shaped inclined plate 187, forcing the L-shaped inclined plate 187 to move forward. At this time, the sleeve shell 185 continues to move. After completely moving into the inner wall of the connecting shell 181, the L-shaped inclined plate 187 will be flush with the notch of the sleeve shell 185. At this time, the L-shaped inclined plate 187 moves backward through the spring, so that the L-shaped inclined plate 187 can be stuck in the inner wall of the sleeve shell 185, thus quickly completing the installation between the face mask 1 and the air delivery pipe 3, enabling quick replacement when the oxygen cylinder 5 runs out of gas, and obtaining respiratory protection in the shortest time. When disassembling, pulling the L-shaped inclined plate 187 can release the limitation of the sleeve shell 185.

[0020] Overall working principle: During adjustment, when the inserting rod 183 moves, it will be inserted into the limiting plate 184, which can further strengthen the connection between the face mask 1 and the air delivery pipe 3 after replacement. At the same time, in case of an emergency, the oxygen cylinder 5 can be quickly replaced, enabling oxygen delivery in a very short time.

[0021] The present invention provides a positive pressure air breathing apparatus first aid device. There are many methods and ways to specifically implement this technical solution. The above description is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention. Each component not clearly defined in this embodiment can be realized by the prior art.

Claims

1. A positive pressure air respirator first aid device, comprising a mask (1), characterized in that: The bottom of the mask (1) is fixedly connected to an adjustment shell (2), the inner wall of the adjustment shell (2) is installed with an air supply pipe (3), the rear part of the air supply pipe (3) is fixedly connected to a transfer pipe (4), the top of the transfer pipe (4) is installed with an oxygen tank (5), the right side of the transfer pipe (4) is fixedly connected to a back plate (6), the inner wall of the adjustment shell (2) is rotatably connected to a threaded rod (7), the circumferential surface of the threaded rod (7) is threadedly connected to an L-shaped plate (8), the inner wall of the mask (1) is fixedly connected to an exhaust valve (9), the front part of the mask (1) is fixedly connected to an air outlet hood (10), the adjustment shell ( The right side of the regulating housing (2) is fixedly connected to a pressure gauge (11), the inner wall of the air outlet hood (10) is rotatably connected to a rotating rod (12), the inner wall of the air outlet hood (10) is slidably connected to a warning rod (13), the rear part of the pressure gauge (11) is provided with a ventilation mechanism (17) for improving the exhaust effect, the front part of the regulating housing (2) is provided with a quick-release mechanism (18) for rapid replacement in an emergency, the circumferential surface of the rotating rod (12) is fixedly connected to a cam (14), the circumferential surface of the rotating rod (12) is fixedly connected to a blade (15), and the rear part of the L-shaped plate (8) is fixedly connected to a straight rod (16).

2. A positive pressure air respirator first aid device according to claim 1, characterized in that: The inner wall of the regulating shell (2) is slidably connected to the surface of the L-shaped plate (8), and the L-shaped plate (8) is used to control the size of the air inlet. The regulating shell (2) will limit the L-shaped plate (8) to prevent the L-shaped plate (8) from rotating. The bottom of the warning rod (13) is in contact with the circumferential surface of the cam (14), and the warning rod (13) will move by being squeezed by the cam (14).

3. A positive pressure air respirator first aid device according to claim 2, characterized in that: The ventilation mechanism (17) comprises a second straight plate (171), the second straight plate (171) being fixedly connected to the inner wall of the second straight plate (171), the inner wall of the second straight plate (171) being slidably connected to a knocking rod (172) via a spring, the rear portion of the knocking rod (172) being fixedly connected to an arc-shaped plate (173), and the rear portion of the first straight rod (16) being fixedly connected to a U-shaped plate (174).

4. A positive pressure air respirator first aid device according to claim 3, characterized in that: The top of the U-shaped plate (174) is fixedly connected to a brush plate (175), the top of the U-shaped plate (174) is fixedly connected to a support plate (176), and the bottom of the barometer (11) is fixedly connected to a hose (177).

5. A positive pressure air respirator first aid device according to claim 4, characterized in that: The rear portion of the arc plate (173) contacts the circumferential surface of the cam (14), and the knocking rod (172) contacts the inner wall of the air outlet hood (10) during movement. The right side of the barometer (11) contacts the left side of the brush plate (175), and the rear portion of the support plate (176) contacts the front portion of the brush plate (175), and the support plate (176) is used to support the brush plate (175) during movement.

6. A positive pressure air respirator first aid device according to claim 5, characterized in that: The quick-release mechanism (18) comprises a connecting shell (181), the connecting shell (181) being fixedly connected to the bottom of the adjusting shell (2), the bottom of the U-shaped plate (174) being fixedly connected to an L-shaped plate 2 (182), the inner wall of the L-shaped plate 2 (182) being fixedly connected to an insertion rod (183), the bottom of the adjusting shell (2) being fixedly connected to a limiting plate (184), and the circumferential surface of the gas delivery pipe (3) being fixedly connected to a sleeve shell (185).

7. A positive pressure air respirator first aid device according to claim 6, characterized in that: The front portion of the connection shell (181) is fixedly connected to a fixing rod (186) via a spring, and the circumferential surface of the fixing rod (186) is slidably connected to an L-shaped inclined plate (187).

8. A positive pressure air respirator first aid device according to claim 7, characterized in that: The inner wall of the connecting shell (181) is fixedly connected to the circumferential surface of the hose (177), and the hose (177) is used to transport gas to the inside of the pressure gauge (11). The insertion rod (183) will contact the inner wall of the limit plate (184) during the movement, and the rear part of the L-shaped inclined plate (187) is in contact with the inner wall of the sleeve shell (185).

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