Quick insertion type emergency endurance device of air respirator

Abstract

The utility model relates to the technical field of breathing apparatus endurance, and discloses an air breathing apparatus quick-plug type emergency endurance device, which comprises an equipment main body, a movable ring is slidably connected in the equipment main body, and a reset spring, an extrusion block, a blocking buckle and a rotating shaft are inserted in the equipment main body. The device is reasonable in structure, and through the moving ring, when the whole device is installed on the surface of an existing respirator mask, a butt joint object on the surface of the mask can conveniently eject the moving ring into the device body, so that the whole device can be rapidly inserted into the surface of the respirator mask to be used; the problem that when the whole equipment is installed on the surface of the respirator mask, a user needs to push the moving ring into the equipment main body by himself or herself due to the fact that the moving ring cannot quickly enter the equipment main body, and then the whole equipment can be installed on the surface of the respirator mask is solved; and when the whole equipment is mounted on the surface of a mask, the movable ring is pushed into the equipment main body, and then the extrusion block pops up to fix the mask.

Description

Technical Field

[0001] This utility model relates to the field of respirator endurance technology, specifically a quick-connect emergency endurance device for air respirators. Background Technology

[0002] This device is mainly used in the field of emergency fire fighting. Its main function is to provide users with a quick-connect emergency refueling device when the equipment unexpectedly stops supplying air or the gas cylinder runs out when using an air respirator. The purpose is to ensure the user's protective breathing in the fire scene and smoke, and to avoid the occurrence of personnel suffocation accidents caused by the inability of the air respirator to continue supplying air.

[0003] However, existing devices lack the ability to be used independently in emergency situations and to easily connect the device to the breathing tubing of an oxygen cylinder. This easily leads to problems such as the inability to easily install the device onto the breathing mask surface for continued use in emergency situations, resulting in the inability to inhale oxygen again after the oxygen in the cylinder is used up, and the inability to quickly connect the device to the oxygen cylinder when needed, resulting in wasted time. It also lacks the ability to filter and purify the air inside the device multiple times when used independently, which easily leads to the inability to filter and purify impurities in the air during emergency use in firefighting, causing harm to the user due to inhalation. Therefore, we propose a new device to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a quick-connect emergency recharge device for air respirators, which solves the problems of existing devices being unable to be quickly installed on the mask surface and unable to quickly connect the entire device to the oxygen cylinder. It also solves the problem that the entire device cannot purify and filter the air inside the main body of the device multiple times.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a quick-connect emergency recharge device for air respirators, comprising a main body, a movable ring slidably connected inside the main body, a return spring inserted inside the main body, a compression block inserted at one end of the return spring, a blocking buckle snapped inside the main body, a rotating shaft inserted inside the blocking buckle, a filter plate rotatably connected to the surface of the rotating shaft, a compression spring inserted inside the filter plate, an adjustment button inserted at one end of the compression spring, a pressing buckle inserted on one side of the adjustment button, a lifting plate slidably connected inside the main body, a telescopic spring inserted inside the lifting plate, an adjustment block inserted at one end of the telescopic spring, a receiving box fixedly connected to the upper surface of the lifting plate, a sponge block inserted inside the receiving box, and a baffle inserted on one side of the main body.

[0008] Optionally, the surface of the main body of the device is provided with a plurality of elongated slots, the interior of which can be connected with existing meshing clamps.

[0009] Optionally, the device body has short limiting grooves on both sides, and the moving ring has limiting slider structures on both sides, which can move within the limiting grooves inside the device body. The surface of the blocking buckle has two shapes, one hollow and the other solid. The surface of the filter plate has two shapes corresponding to the blocking buckle and in the same position.

[0010] Optionally, a storage box is inserted into the inside of the main body of the device. The bottom of the storage box has multiple small water inlet holes, and the bottom of the storage box can be adapted to the sponge block.

[0011] Optionally, a vent plate is inserted into the upper surface of the storage box. The surface of the vent plate has multiple vent holes of different sizes and shapes. The larger vent holes are located in the middle of the vent plate, and the smaller vent holes are located on both sides of the vent plate.

[0012] Optionally, a rotating rod is inserted into the inside of the main body of the device, and a circular mounting block is provided at both ends of the rotating rod. The circular mounting block can be inserted into the inside of the main body of the device for fixation.

[0013] Optionally, a closing plate is sleeved on the surface of the rotating rod. The closing plate is made of rubber sealing gasket material and can be opened by the outlet of an existing oxygen cylinder.

[0014] Optionally, a cover plate is inserted into one side of the main body of the device. The upper surface of the cover plate has an opening and closing groove, which is semi-circular and can open or close the cover plate.

[0015] In summary, the technical effects and advantages of this utility model are as follows:

[0016] 1. This utility model has a reasonable structure. Through the movable ring, it facilitates the insertion of the movable ring into the main body of the device when installing the entire device on the surface of an existing respirator mask. This allows the device to be quickly inserted into the respirator mask for use, reducing the need for the user to manually push the movable ring into the main body before installation. The return spring and compression block ensure that after the movable ring is pushed into the main body, the compression block pops out to secure the mask, reducing the risk of the device being stuck due to a small mask contact area during emergency refueling. The issue of loose or falling equipment is addressed by using a compression spring and a push-button mechanism. This allows for easy engagement of the push-button, retracting the adjustment button, and manual rotation of the filter plate to misalign it with the blocking buckle. This reduces the risk of air being unable to pass through the filter plate when the entire device is connected to the oxygen cylinder of the respirator. The filter plate also provides a simple filtration effect for emergency use during firefighting operations, reducing the risk of airborne impurities entering the user's body and causing injury. Furthermore, the rotating shaft allows for easy rotation of the filter plate, preventing air from entering the main body of the device if the filter plate cannot rotate after connecting to the oxygen cylinder.

[0017] 2. In this utility model, the telescopic spring and adjusting block achieve the effect of fixing the lifting plate after it is pushed into the main body of the equipment. This reduces the problem of the sponge block not being able to contact the bottom of the storage box due to the lifting plate falling when it is pushed up for use. The lifting plate also allows the sponge block to be pulled into the main body of the equipment for use through the receiving box. This reduces the problem of the sponge block being unable to rise or fall, making it easy to push up when it is no longer usable and unable to retract when not in use. The sponge block also allows the water inside to be squeezed into the storage box to filter the air inside the equipment when the whole equipment is in use. This reduces the risk of users inhaling air with high temperature and many impurities when the whole equipment is used for emergency backup during fire fighting. To address the issue of water entering the body and causing harm to the user, a baffle is installed that allows manual opening of the baffle to add water into the receiving box, enabling water to permeate into the sponge block. This reduces the inconvenience of reusing the device because the sponge block cannot be replenished or replaced after use. A storage box allows the sponge block to engage with the bottom of the storage box, storing the water inside. This reduces the inconvenience of filtering the air inside the device due to water trapped in the sponge block. Finally, a vent plate allows moisture from the storage box to enter the device, purifying the air inside. This also reduces the inconvenience of filtering the air inside the device due to moisture trapped in the storage box.

[0018] 3. In this utility model, the rotating rod allows for the quick insertion of the closing plate into the main body of the equipment when the oxygen cylinder's breathing tubing needs to be connected to the overall device. This facilitates easy access for the breathing tubing and reduces the problem of not being able to quickly insert the breathing tubing when connecting the oxygen cylinder to the overall device. Simultaneously, the closing plate effectively blocks external air when the overall device is used independently, preventing external air from entering the device and being inhaled by the user when the connection is not needed. The cover plate allows for easy opening and closing when the oxygen cylinder needs to be connected, and also prevents external air from entering the device when connection is not required. This reduces the problem of external air entering the device due to the closing plate becoming unable to block external air independently after prolonged use or due to damage to the closing plate during emergency use and the inability to replace it promptly. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the planar structure of the lifting plate of this utility model;

[0021] Figure 3 This is a schematic diagram of the exploded structure of the filter plate of this utility model;

[0022] Figure 4 This is a schematic diagram of the exploded structure of the sponge block of this utility model;

[0023] Figure 5 This is a schematic diagram of the exploded structure of the closed plate of this utility model.

[0024] In the diagram: 1. Main body of the equipment; 2. Moving ring; 3. Return spring; 4. Squeezing block; 5. Blocking buckle; 6. Rotating shaft; 7. Filter plate; 8. Compression spring; 9. Adjustment button; 10. Press buckle; 11. Lifting plate; 12. Telescopic spring; 13. Adjustment block; 14. Receiving box; 15. Sponge block; 16. Baffle; 17. Storage box; 18. Ventilation plate; 19. Rotating rod; 20. Closing plate; 21. Cover plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example: Reference Figures 1-5 The quick-connect emergency recharge device for the air respirator shown includes a main body 1. The surface of the main body 1 has multiple elongated slots that can engage with existing clamping fixtures. Short limiting grooves are located on both sides of the interior of the main body 1. A moving ring 2 is slidably connected inside the main body 1. A return spring 3 is inserted inside the main body 1, with a compression block 4 inserted at one end. A blocking buckle 5 is snapped inside the main body 1, and a rotating shaft 6 is inserted inside the blocking buckle 5. A filter plate 7 is rotatably connected to the surface of the device body 1. A compression spring 8 is inserted inside the filter plate 7. An adjustment button 9 is inserted at one end of the compression spring 8. A push button 10 is inserted on one side of the adjustment button 9. A lifting plate 11 is slidably connected inside the device body 1. A telescopic spring 12 is inserted inside the lifting plate 11. An adjustment block 13 is inserted at one end of the telescopic spring 12. A receiving box 14 is fixedly connected to the upper surface of the lifting plate 11. A sponge block 15 is inserted inside the receiving box 14. A baffle 16 is inserted on one side of the device body 1.

[0027] As a preferred embodiment of this example, Figures 1 to 4As shown, a movable ring 2 is slidably connected inside the main body 1 of the equipment. Limiting slider structures are provided on both sides of the movable ring 2, allowing it to move within the limiting groove inside the main body 1. A return spring 3 is inserted inside the main body 1, with a pressing block 4 inserted at one end. A blocking buckle 5 is snapped inside the main body 1. The surface of the blocking buckle 5 has two shapes: hollow and solid. A rotating shaft 6 is inserted inside the blocking buckle 5, and a filter plate 7 is rotatably connected to the surface of the rotating shaft 6. The surface of the filter plate 7 has two shapes corresponding to the blocking buckle 5 and are in the same position. A compression spring 8 is inserted inside the filter plate 7, with an adjustment button 9 inserted at one end. A pressing buckle 10 is inserted on one side of the adjustment button 9. A lifting plate 11 is dynamically connected, and a telescopic spring 12 is inserted inside the lifting plate 11. An adjusting block 13 is inserted into one end of the telescopic spring 12. A receiving box 14 is fixedly connected to the upper surface of the lifting plate 11, and a sponge block 15 is inserted inside the receiving box 14. A baffle 16 is inserted into one side of the main body 1 of the device. During use, the moving ring 2 can be manually pushed into the main body 1 of the device. This allows the device to be easily installed on the surface of an existing respirator mask, so that the mating surface of the mask can push the moving ring 2 into the main body 1 of the device, enabling the device to be quickly inserted into the respirator mask for use. This reduces the need for manual insertion when installing the device on the respirator mask due to the moving ring 2 not being able to quickly enter the main body 1. The problem of users having to manually push the movable ring 2 into the device body 1 to install the entire device on the respirator mask surface is addressed by using the return spring 3 and the compression block 4. After the movable ring 2 is pushed into the device body 1, the return spring 3 pops out the compression block 4, achieving the effect of securing the device to the mask surface by pushing the movable ring 2 into the device body 1 and then popping out the compression block 4. This reduces the problem of the entire device loosening and falling off due to the small mask locking area when the device is installed on the mask surface for emergency use. It is worth noting that there are two return springs 3 and compression blocks 4, located on the upper and lower surfaces inside the device body 1, and in opposite directions. The compression spring 8 and the pressing buckle 10 allow the pressing buckle to be manually squeezed down. When the compression spring 8 drives the adjustment button 9 into the filter plate 7 and the pressing buckle 10 is released, the adjustment button 9 pops out, allowing for easy engagement. After the pressing buckle 10 is retracted, the adjustment button 9 can be manually rotated to offset the filter plate 7 from the blocking buckle 5. This reduces the problem of air not being able to enter the entire device through the filter plate 7 when it is connected to the oxygen cylinder of the breathing apparatus. Through the filter plate 7, air can enter the main body 1 of the device, achieving the effect of simple filtration of air during firefighting when the device is used in an emergency. This reduces the risk of injury to the user due to impurities in the air entering the user's body during emergency firefighting operations.The filter plate 7 can be manually rotated on one side of the stop buckle 5 via the pivot 6, allowing for easy rotation of the filter plate 7. This reduces the problem of air entering the main body 1 from inside the filter plate 7 because it cannot rotate after the entire device is connected to the oxygen cylinder. The lifting plate 11 can be secured inside the main body 1 via the telescopic spring 12 and the adjusting block 13. This allows the lifting plate 11 to be pushed into the main body 1 and then fixed by the adjusting block 13, reducing the problem of the sponge block 15 failing to contact the bottom of the storage box 17 due to the lifting plate 11 falling off during use. The lifting plate 11 can also be manually pushed into the main body 1, allowing the sponge block 15 to be driven into the main body 1 via the receiving box 14 for use. This reduces the problem of the sponge block 15 failing to contact the bottom of the storage box 17. The system addresses the issues of the sponge block 15 being easily pushed up when it cannot be raised or lowered, and the inability to retract it when not in use. Water can be added to the sponge block 15, allowing it to be squeezed into the storage box 17 during use, effectively filtering the air inside the device. This reduces the risk of injury to users due to high air temperature and impurities during emergency use in fire situations. The baffle 16 can be manually opened or closed on one side of the device body 1, allowing water to be added to the receiving box 14 and permeate the sponge block 15. This prevents the inconvenience of reusing the sponge block 15 after use, as water cannot be added or replaced.

[0028] like Figure 5As shown, in this embodiment, a storage box 17 is inserted into the interior of the device body 1. Multiple small water inlet holes are provided at the bottom of the storage box 17, allowing it to fit with the sponge block 15. A vent plate 18 is inserted into the upper surface of the storage box 17. Multiple vent holes of different sizes are provided on the surface of the vent plate 18, with larger vent holes located in the middle and smaller vent holes on either side. A rotating rod 19 is inserted into the interior of the device body 1. Circular mounting blocks are provided at both ends of the rotating rod 19, allowing it to be inserted into the device body 1 for fixation. A closing plate 20 is fitted onto the surface of the rotating rod 19. The closing plate 20 is made of rubber sealing gasket material and can be... The oxygen cylinder's outlet is opened, and a cover plate 21 is inserted into one side of the main body 1. The upper surface of the cover plate 21 has a semi-circular opening and closing groove, allowing the cover plate 21 to be opened or closed. During use, water inside the sponge block 15 can be stored through the storage box 17. This allows the sponge block 15 to engage with the bottom of the storage box 17, enabling the water inside the sponge block 15 to enter and be stored. This reduces the problem of water trapped inside the sponge block 15 hindering the purification and filtration of the air inside the main body 1. Through the vent plate 18, the water vapor inside the storage box 17 can be discharged into the main body 1, achieving the goal of allowing the water vapor inside the storage box 17 to enter the equipment. The internal air purification and filtration system of the main body 1 effectively reduces the problem of air purification and filtration failure caused by moisture trapped inside the storage box 17. Notably, the surface of the ventilation plate 18 has numerous ventilation holes, with a larger central hole and smaller side holes. Moisture can be expelled through the larger holes, allowing the user to precisely inhale moisture through their mouth and nose. The rotating rod 19 allows manual rotation of the closing plate 20, enabling quick insertion of the closing plate 20 into the main body 1 when connecting the oxygen cylinder's breathing tubing to the equipment. This reduces the need for manual connection and filtration. The design addresses the issue of the inability to quickly insert the breathing tubing into the main body 1 of the device when the oxygen cylinder is connected to the overall equipment. Simultaneously, it achieves the effect of blocking external air from entering the main body 1 when the overall equipment needs to be used independently, reducing the risk of external air entering the main body 1 and being inhaled by the user when the overall equipment is not connected to the oxygen cylinder. The cover 21 can be manually opened or closed on one side of the main body 1, achieving the effect of conveniently opening the cover 21 for connection when the oxygen cylinder needs to be connected and closing it to block external air when connection is not required.This reduces the problems of external air entering the main body 1 due to the closure plate 20 failing to independently block external air after prolonged use, and due to damage to the closure plate 20 during emergency use of the entire equipment and its inability to be replaced in a timely manner.

[0029] The working principle of this practical application is as follows:

[0030] During use, the movable ring 2 can be manually pushed into the device body 1. This allows the device to be easily installed on the surface of an existing respirator mask, with the mating parts on the mask surface pushing the movable ring 2 into the device body 1. This reduces the need for the user to manually push the movable ring 2 into the device body 1 before installation, as the movable ring 2 cannot be quickly inserted into the device body 1. The return spring 3 and the compression block 4 allow the movable ring 2 to be pushed into the device body 1, after which the return spring 3 ejects the compression block 4, achieving the desired effect. When the entire device is installed on the mask surface, the moving ring 2 is pushed into the device body 1, and the pressing block 4 pops out to fix the mask. This reduces the problem of the entire device loosening and falling off due to the small mask locking area when the entire device is installed on the mask surface for emergency refueling. Through the compression spring 8 and the pressing buckle 10, the pressing buckle 10 can be manually squeezed to make the compression spring 8 drive the adjustment button 9 into the filter plate 7. When the pressing buckle 10 is released, the adjustment button 9 pops out. This achieves the effect of easily engaging the pressing buckle 10 and retracting the adjustment button 9, and then manually rotating the filter plate 7 to offset the position of the filter plate 7 from the blocking buckle 5 and the filter plate 7. This reduces the problem of air not being able to pass through the filter plate 7 when the entire device is connected to the oxygen cylinder of the respirator. Regarding the issue of air entering the interior of the overall equipment, the filter plate 7 allows air to pass through it into the main body 1 of the equipment. This achieves a simple filtration effect during emergency use by the user, reducing the risk of airborne impurities entering the user's body and causing harm. The rotating shaft 6 allows the filter plate 7 to be manually rotated on one side of the stop buckle 5, facilitating easy rotation of the filter plate 7 and preventing air from entering the main body 1 due to the filter plate 7 not being able to rotate after the equipment is connected to the oxygen cylinder. The extension spring 12 and adjusting block 13 allow for... The lifting plate 11 is secured inside the main body 1 of the equipment. This allows the lifting plate 11 to be pushed into the main body 1 and then fixed in place by the adjusting block 13. This reduces the problem of the sponge block 15 failing to contact the bottom of the storage box 17 due to the lifting plate 11 falling off during use. The lifting plate 11 can be manually pushed into the main body 1, allowing the sponge block 15 to be pulled into the main body 1 for use via the receiving box 14. This reduces the problem of the sponge block 15 being unable to rise or fall, making it easy to push up when no longer needed and retract when not in use. Water can be added to the sponge block 15.This design achieves the effect of squeezing water from inside the sponge block 15 into the storage box 17 to filter the air inside the entire device during use. This reduces the risk of injury to users due to the high temperature and impurities inside the air when using the device for emergency backup during firefighting. The baffle 16 can be manually opened or closed on one side of the device body 1, allowing water to be added into the receiving box 14 and seep into the sponge block 15. This reduces the inconvenience of not being able to add or replace water in the sponge block 15 after use, preventing further inconvenience. The problem is that the storage box 17 can store the water inside the sponge block 15, allowing the sponge block 15 to engage with the bottom of the storage box 17, thus preventing the water inside the sponge block 15 from being trapped and hindering the purification and filtration of the air inside the main body 1. The vent plate 18 allows the water vapor inside the storage box 17 to be discharged into the main body 1, achieving the effect of purifying and filtering the air inside the main body 1, and reducing the problem caused by the water vapor inside the storage box 17 being trapped and hindering the purification and filtration of the air inside the main body 1. To address the issue of the inability to purify and filter the air inside the main body 1 of the equipment, the closing plate 20 can be manually rotated using the rotating rod 19. This allows the closing plate 20 to be quickly lowered into the main body 1 when the oxygen cylinder's breathing tubing needs to be connected to the overall equipment, facilitating easy access for the oxygen cylinder's breathing tubing. This reduces the problem of not being able to quickly insert the breathing tubing into the main body 1 when connecting the oxygen cylinder to the overall equipment. Simultaneously, the closing plate 20 can also block external air from entering the overall equipment when it needs to be used independently, reducing the need for connecting the overall equipment to the oxygen cylinder. When gas cylinders are docked, outside air can enter the main body 1 of the equipment through the closing plate 20, causing the user to inhale it. The cover plate 21 can be manually opened or closed on one side of the main body 1. This allows for easy opening of the cover plate 21 when docking the oxygen cylinder with the overall equipment is needed, and for closing the cover plate 21 when docking is not required, effectively blocking outside air. This reduces the problem of outside air entering the main body 1 due to the closing plate 20 becoming unable to block outside air independently after prolonged use, or due to damage to the closing plate 20 during emergency use of the overall equipment and the inability to replace it in time.

[0031] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-connect emergency recharge device for air respirators, comprising a main body (1), characterized in that: The device body (1) has a sliding ring (2) inside, a reset spring (3) inside, a compression block (4) at one end of the reset spring (3), a blocking buckle (5) inside the device body (1), a rotating shaft (6) inside the blocking buckle (5), a filter plate (7) rotatably connected to the surface of the rotating shaft (6), a compression spring (8) inside the filter plate (7), an adjustment button (9) at one end of the compression spring (8), a pressing buckle (10) at one side of the adjustment button (9), a lifting plate (11) inside the device body (1), a telescopic spring (12) inside the lifting plate (11), an adjustment block (13) at one end of the telescopic spring (12), a receiving box (14) fixedly connected to the upper surface of the lifting plate (11), a sponge block (15) inside the receiving box (14), and a baffle (16) at one side of the device body (1).

2. The quick-connect emergency recharge device for air respirators according to claim 1, characterized in that: The surface of the main body of the device (1) has multiple elongated slots, and the interior of the elongated slots can be connected with existing meshing clamps.

3. The quick-connect emergency recharge device for air respirators according to claim 1, characterized in that: The device body (1) has a limiting groove on both sides inside. The moving ring (2) has a limiting slider structure on both sides, which can move in the limiting groove inside the device body (1). The surface of the blocking buckle (5) is divided into two shapes, one is hollow and the other is solid. The surface of the filter plate (7) is provided with two shapes corresponding to the blocking buckle (5) and in the same position.

4. The quick-connect emergency recharge device for air respirators according to claim 1, characterized in that: The device body (1) has a storage box (17) inserted inside. The bottom of the storage box (17) has multiple small water inlet holes. The bottom of the storage box (17) can be adapted to the sponge block (15).

5. The quick-connect emergency recharge device for air respirators according to claim 4, characterized in that: A vent plate (18) is inserted into the upper surface of the storage box (17). The surface of the vent plate (18) is provided with a plurality of vent holes of different sizes and shapes. The larger vent holes are located in the middle of the vent plate (18), and the smaller vent holes are located on both sides of the vent plate (18).

6. The quick-connect emergency recharge device for air respirators according to claim 1, characterized in that: A rotating rod (19) is inserted inside the main body (1) of the equipment. Both ends of the rotating rod (19) are provided with circular mounting blocks, which can be inserted into the main body (1) of the equipment for fixation.

7. The quick-connect emergency recharge device for air respirators according to claim 6, characterized in that: The rotating rod (19) is fitted with a closing plate (20), which is made of rubber sealing gasket material and can be opened by the outlet of an existing oxygen cylinder.

8. The quick-connect emergency recharge device for air respirators according to claim 1, characterized in that: A cover plate (21) is inserted into one side of the main body (1) of the device. The upper surface of the cover plate (21) is provided with an opening and closing groove, which is semi-circular. The opening and closing groove can open or close the cover plate (21).

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