Mask of air breathing machine

Abstract

The utility model provides a mask of an air breathing machine, which relates to the technical field of fire-fighting articles and comprises a mask body, an expanding device is arranged on one side of a connecting cover and comprises a round tube and a threaded tube, one side of the round tube is fixedly connected with one side of the connecting cover, and the other side of the round tube is fixedly connected with the threaded tube. The expansion device comprises a connecting cover, a threaded pipe is arranged in the connecting cover, the end, away from the threaded pipe, of the conveying pipe is fixedly connected with a conical barrel, the inner wall of the threaded pipe is rotationally connected with a round rod, and the outer surface of the round rod is in threaded connection with a threaded ring. When a firefighter uses the breathing machine to carry out rescue work, the face of a rescued person is sleeved with the conical barrel, and the conical barrel is located on the outer side of the mouth and the outer side of the nose, so that air in the breathing machine can enter the conveying pipe through the round pipe on one side of the connecting cover and is supplied to the person wearing the breathing machine and the rescued person at the same time; and the practicability when the breathing machine is used is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting supplies, in particular to an air breathing machine mask. Background Art

[0002] A fire is a serious natural disaster. In a fire accident, the people in the fire environment will not only be burned by the flames, but the smoke in the fire will enter the respiratory tract and lungs when breathing, causing phenomena such as poisoning and asphyxiation of people. When firefighters carry out rescue operations, they usually carry a breathing machine to provide fresh air for themselves.

[0003] Since there is only one mask on the breathing machine, in a fire environment, when firefighters using the breathing machine encounter trapped people in the fire environment during rescue operations, they cannot share the fresh air inside the breathing machine, which is likely to delay the rescue time and lead to the problem of low practicability when using the breathing machine. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is: in a fire environment, when firefighters using the breathing machine encounter trapped people in the fire environment during rescue operations, they cannot share the fresh air inside the breathing machine, which is likely to delay the rescue time and lead to the problem of low practicability when using the breathing machine.

[0005] The technical solution adopted by the utility model to solve its technical problems is: an air breathing machine mask, including a mask body. A connection cover is clamped at the bottom end of the mask body. A connection pipe is fixedly connected to one side of the connection cover. A strap is arranged on one side of the top end of the mask body. An expansion device is arranged on one side of the connection cover. The expansion device includes a round pipe and a threaded pipe. One side of the round pipe is fixedly connected to one side of the connection cover. The outer surface of the threaded pipe is threadedly connected to the inner wall of the round pipe. One end of the threaded pipe is fixedly connected to a delivery pipe. The end of the delivery pipe far from the threaded pipe is fixedly connected to a conical cylinder. A round rod is rotatably connected to the inner wall of the threaded pipe. A disc is fixedly connected to the outer surface of the round rod. The disc is located inside the threaded pipe. The diameter of the disc is adapted to the inner diameter of the threaded pipe. A threaded ring is threadedly connected to the outer surface of the round rod. A pressing piece is rotatably connected to the bottom end of the threaded ring.

[0006] The effect achieved by the above components is: by setting the tapered cylinder, one end of the threaded tube is inserted into the round tube, and the threaded tube is rotated to connect the inner wall thread of the round tube to connect the threaded tube and the round tube. The delivery tube and the tapered cylinder can be installed on one side of the connecting cover. When the firefighter carries the respirator for rescue, he can push the round rod to rotate and adjust the angle of the disc inside the threaded tube to open the inside of the threaded tube, and then rotate the threaded ring to move the threaded ring downward on the outer surface of the round rod, push the pressing piece to press the bottom end of the pressing piece against the outer surface of the threaded tube, fix the angle between the round rod and the disc and the threaded tube, give the tapered cylinder to the rescued person, hold it on the outside of the delivery tube, put the tapered cylinder on the face outside the mouth and nose, so that the air inside the respirator can enter the delivery tube through the round tube on one side of the connecting cover, and be supplied to the person wearing the respirator and the rescued person at the same time, thereby improving the practicality of using the respirator.

[0007] Preferably, a rectangular block is fixedly connected to the top end of the round rod, and the length of the rectangular block is greater than the diameter of the round rod.

[0008] The effect achieved by the above components is that the movement range of the threaded ring on the outer surface of the round rod can be limited by setting the rectangular block, thereby preventing the threaded ring from falling off the surface of the round rod when moving upward on the outer surface of the round rod.

[0009] Preferably, a sealing ring is fixedly connected to one side of the threaded tube, and a rubber ring made of rubber material is provided on the inner wall of the sealing ring.

[0010] The effect achieved by the above components is: when the threaded pipe is connected to the round pipe, the rubber ring inside the sealing ring will be sleeved on the outside of the connection between the threaded pipe and the round pipe, further sealing the connection between the threaded pipe and the round pipe, and preventing smoke from entering the inside of the round pipe and the connecting cover as much as possible.

[0011] Preferably, a plurality of protrusions are fixedly connected to the outer surface of the sealing ring, and the protrusions are distributed in a circumferential manner on the outer surface of the sealing ring.

[0012] The effect achieved by the above components is that the sealing ring can be pushed more conveniently to control the rotation of the threaded pipe by pressing the protrusion on the outer surface of the sealing ring with the hand.

[0013] Preferably, a disc is fixedly connected to one side of the conical cylinder, and the disc is made of rubber material.

[0014] The effect achieved by the above components is that when the user puts the cone tube on the face, the rubber disc will fit the face, further sealing the contact point between the cone tube and the face, and further preventing smoke from entering the interior of the cone tube.

[0015] Preferably, a groove block is fixedly connected to a side of the outer surface of the delivery pipe close to the conical cylinder, and a plurality of grooves are formed on the outer surface of the groove block.

[0016] The effects achieved by the above components are as follows: It is more convenient to hold the delivery tube and the conical cylinder by grasping the groove on the outer surface of the groove block, improving the convenience when using the expansion device.

[0017] Preferably, a protective device is provided on one side of the conical cylinder. The protective device includes a cover plate. One side of the cover plate is fixedly connected with a rectangular rod, and a clamping groove is formed on one side of the inner wall of the conical cylinder.

[0018] The effects achieved by the above components are as follows: When the expansion device is not in use, the cover plate can be clamped at the clamping groove on the inner wall of the conical cylinder, and the inside of the conical cylinder is closed by the cover plate, as much as possible to prevent dust, sundries, etc. from entering the inside of the conical cylinder and the delivery tube.

[0019] Preferably, an elastic rope is fixedly connected to one side of the groove block, and the end of the elastic rope away from the groove block is fixedly connected to one side of the rectangular rod.

[0020] The effects achieved by the above components are as follows: When removing the cover plate by using the expansion device, the cover plate can be always fixed on one side of the delivery tube through the elastic rope, as much as possible to prevent the cover plate from falling and being lost, and it is convenient to take the cover plate for use.

[0021] The beneficial effects of the present utility model are:

[0022] The expansion device of the present utility model can connect the delivery tube and the conical cylinder with one side of the connection cover through a threaded tube. When firefighters use a breathing machine for rescue work, the conical cylinder is given to the rescued person and is put on the face outside the mouth and nose, so that the air inside the breathing machine can enter the delivery tube through the round tube on one side of the connection cover, and is supplied to both the person wearing the breathing machine and the rescued person at the same time, improving the practicability when using the breathing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0024] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0025] Figure 2 is a three-dimensional structural schematic diagram of the cover body part of the present utility model;

[0026] Figure 3 is a three-dimensional structural schematic diagram of the delivery tube part of the present utility model;

[0027] Figure 4 is for the present utility model Figure 3 partial enlarged three-dimensional structural schematic diagram at A.

[0028] Legend: 1. Cover body; 2. Expansion device; 3. Protection device; 4. Connection cover; 5. Connection pipe; 6. Straps; 21. Round tube; 22. Threaded tube; 23. Delivery pipe; 24. Conical cylinder; 25. Round rod; 26. Disc; 27. Threaded ring; 28. Pressing piece; 29. Rectangular block; 210. Sealing ring; 211. Protrusion; 212. Round plate; 213. Groove block; 31. Card slot; 32. Cover plate; 33. Rectangular rod; 34. Elastic cord. Detailed implementation manners

[0029] Now, the present utility model will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0031] Embodiment 1 Figure 1 An air ventilator face mask shown includes a cover body 1. A connection cover 4 is snap-connected to the bottom end of the cover body 1. A connection pipe 5 is fixedly connected to one side of the connection cover 4. A strap 6 is arranged on one side of the top end of the cover body 1. An expansion device 2 is arranged on one side of the connection cover 4.

[0032] Figures 1-4The expansion device 2 shown includes a round tube 21 and a threaded tube 22. One side of the round tube 21 is fixedly connected to one side of the connecting cover 4. The outer surface of the threaded tube 22 is threadedly connected to the inner wall of the round tube 21. One end of the threaded tube 22 is fixedly connected to a delivery tube 23. The end of the delivery tube 23 away from the threaded tube 22 is fixedly connected to a tapered cylinder 24. The inner wall of the threaded tube 22 is rotatably connected to a round rod 25. The outer surface of the round rod 25 is fixedly connected to a disc 26. The disc 26 is located inside the threaded tube 22. The diameter of the disc 26 is adapted to the inner diameter of the threaded tube 22. The outer surface of the round rod 25 is threadedly connected to a threaded ring 27. The bottom end of the threaded ring 27 is rotatably connected to a pressing piece 28. By setting the tapered cylinder 24, one end of the threaded tube 22 is inserted into the round tube 21, and the threaded tube 22 is rotated to thread the inner wall of the round tube 21 to connect the threaded tube 22 to the round tube 21. The connection can be made by installing the delivery pipe 23 and the tapered tube 24 on one side of the connecting cover 4. When the firefighter carries the respirator for use during rescue, he can push the round rod 25 to rotate the angle of the adjustment disc 26 inside the threaded tube 22 to open the inside of the threaded tube 22, and then rotate the threaded ring 27 to make the threaded ring 27 move downward on the outer surface of the round rod 25 and push the pressing piece 28 to press the bottom end of the pressing piece 28 against the outer surface of the threaded tube 22, fix the angle between the round rod 25 and the disc 26 and the threaded tube 22, give the tapered tube 24 to the rescued person, hold the outside of the delivery pipe 23, and put the tapered tube 24 on the face outside the mouth and nose, so that the air inside the respirator can enter the delivery pipe 23 through the round tube 21 on one side of the connecting cover 4, and be supplied to the person wearing the respirator and the rescued person at the same time, thereby improving the practicality of using the respirator.

[0033] Figures 2-4 The top of the round rod 25 shown is fixedly connected with a rectangular block 29, and the length of the rectangular block 29 is greater than the diameter of the round rod 25. By setting the rectangular block 29, the movement range of the threaded ring 27 on the outer surface of the round rod 25 can be limited to prevent the threaded ring 27 from falling off the surface of the round rod 25 when the outer surface of the round rod 25 moves upward. A sealing ring 210 is fixedly connected to one side of the threaded tube 22, and the inner wall of the sealing ring 210 is provided with a rubber ring made of rubber material. When the threaded tube 22 is connected to the round tube 21, the rubber ring inside the sealing ring 210 will be sleeved on the outside of the connection between the threaded tube 22 and the round tube 21, further sealing the connection between the threaded tube 22 and the round tube 21, and preventing smoke from entering the inside of the round tube 21 and the connecting cover 4 as much as possible.

[0034] Figures 2-4A number of protrusions 211 are fixedly connected to the outer surface of the shown sealing ring 210. The protrusions 211 are circumferentially distributed on the outer surface of the sealing ring 210. By pressing against the protrusions 211 on the outer surface of the sealing ring 210 with hand, it is more convenient to push the sealing ring 210 to control the rotation of the threaded tube 22. A disc 212 is fixedly connected to one side of the conical cylinder 24. The disc 212 is made of rubber material. When the user puts the conical cylinder 24 on the face, the rubber disc 212 will fit on the face, further sealing the contact area between the conical cylinder 24 and the face, and further preventing the flue gas from entering the inside of the conical cylinder 24. A groove block 213 is fixedly connected to the outer surface of the conveying pipe 23 near one side of the conical cylinder 24. A number of grooves are formed on the outer surface of the groove block 213. Holding the groove block 213 at the grooves on its outer surface can make it more convenient to pick up the conveying pipe 23 and hold the conical cylinder 24, improving the convenience when using the expansion device 2.

[0035] Figure 1 and Figure 3 A protective device 3 is provided on one side of the shown conical cylinder 24. The protective device 3 includes a cover plate 32. A rectangular rod 33 is fixedly connected to one side of the cover plate 32. A clamping groove 31 is formed on one side of the inner wall of the conical cylinder 24. When the expansion device 2 is not in use, the cover plate 32 can be clamped at the clamping groove 31 on the inner wall of the conical cylinder 24, and the inside of the conical cylinder 24 is closed by the cover plate 32, as much as possible to prevent dust, sundries, etc. from entering the inside of the conical cylinder 24 and the conveying pipe 23. An elastic cord 34 is fixedly connected to one side of the groove block 213. The end of the elastic cord 34 far from the groove block 213 is fixedly connected to one side of the rectangular rod 33. When the cover plate 32 is removed by using the expansion device 2, the cover plate 32 can be always fixed on one side of the conveying pipe 23 through the elastic cord 34, as much as possible to prevent the cover plate 32 from falling and being lost, and it is convenient to pick up the cover plate 32 for use.

[0036] Working principle: Before using the ventilator, one end of the corrugated tube 22 can be inserted at the round tube 21. By pushing the protrusion 211 on the outer surface of the sealing ring 210, the sealing ring 210 and the corrugated tube 22 are rotated to threadedly connect the corrugated tube 22 with the inner wall of the round tube 21, thereby connecting the corrugated tube 22 and the round tube 21. The delivery tube 23 and the conical cylinder 24 are installed on one side of the connecting cover 4. Then, the cover plate 32 is clamped at the card slot 31 on the inner wall of the conical cylinder 24 to seal the inside of the conical cylinder 24 through the cover plate 32. When firefighters carry and use the ventilator during rescue operations, they wear the cover body 1 on the face and wear the strap 6 on the outer surface of the cover body 1 on the head to fix the cover body 1. A pipeline is used to connect the connecting tube 5 on one side of the connecting cover 4 with the ventilator. When trapped people are encountered during the rescue operation, the elastic rope 34 is pulled to take out the cover plate 32 from the inside of the card slot 31. The round rod 25 is pushed to rotate to adjust the angle of the disc 26 inside the corrugated tube 22 to open the inside of the corrugated tube 22. Then, the threaded ring 27 is rotated to move downward on the outer surface of the round rod 25 to push the pressing piece 28 to press the bottom end of the pressing piece 28 tightly against the outer surface of the corrugated tube 22, so as to fix the angle between the round rod 25 and the disc 26 and the corrugated tube 22. The conical cylinder 24 is given to the rescued person, and the trapped person holds the conical cylinder 24 on the face outside the mouth and nose by grasping the groove block 213 on the outer surface of the delivery tube 23, so that the air inside the ventilator can enter the delivery tube 23 through the round tube 21 on one side of the connecting cover 4, and is supplied to both the person wearing the ventilator and the rescued person for use.

[0037] Inspired by the above ideal embodiments of the present invention, through the above description, relevant staff can make various changes and modifications completely within the scope not deviating from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An air respirator mask, comprising a mask body (1), characterized in that: The bottom end of the cover body (1) is clamped with a connecting cover (4), one side of the connecting cover (4) is fixedly connected to a connecting pipe (5), a top side of the cover body (1) is provided with a binding belt (6), one side of the connecting cover (4) is provided with an expansion device (2), the expansion device (2) comprises a round tube (21) and a threaded tube (22), one side of the round tube (21) is fixedly connected to one side of the connecting cover (4), the outer surface of the threaded tube (22) is threadedly connected to the inner wall of the round tube (21), and one end of the threaded tube (22) is fixedly connected to a delivery pipe. (23), one end of the delivery pipe (23) away from the threaded pipe (22) is fixedly connected to a tapered cylinder (24), the inner wall of the threaded pipe (22) is rotatably connected to a round rod (25), the outer surface of the round rod (25) is fixedly connected to a disc (26), the disc (26) is located inside the threaded pipe (22), the diameter of the disc (26) is adapted to the inner diameter of the threaded pipe (22), the outer surface of the round rod (25) is threadedly connected to a threaded ring (27), and the bottom end of the threaded ring (27) is rotatably connected to a pressing plate (28).

2. An air respirator mask according to claim 1, characterized in that: The top end of the round rod (25) is fixedly connected with a rectangular block (29), and the length of the rectangular block (29) is greater than the diameter of the round rod (25).

3. An air respirator mask according to claim 2, characterized in that: A sealing ring (210) is fixedly connected to one side of the threaded tube (22), and a rubber ring made of rubber material is provided on the inner wall of the sealing ring (210).

4. An air respirator mask according to claim 3, characterized in that: A plurality of protrusions (211) are fixedly connected to the outer surface of the sealing ring (210), and the protrusions (211) are distributed in a circumferential manner on the outer surface of the sealing ring (210).

5. The air respirator mask according to claim 4, characterized in that: A disc (212) is fixedly connected to one side of the conical cylinder (24), and the disc (212) is made of rubber material.

6. The air respirator mask according to claim 1, characterized in that: A groove block (213) is fixedly connected to one side of the outer surface of the delivery pipe (23) close to the conical cylinder (24), and a plurality of grooves are formed on the outer surface of the groove block (213).

7. An air respirator mask according to claim 6, characterized in that: A protective device (3) is provided on one side of the conical cylinder (24), and the protective device (3) comprises a cover plate (32). A rectangular rod (33) is fixedly connected to one side of the cover plate (32), and a clamping groove (31) is provided on one side of the inner wall of the conical cylinder (24).

8. An air respirator mask according to claim 7, characterized in that: One side of the slot block (213) is fixedly connected to an elastic rope (34), and one end of the elastic rope (34) away from the slot block (213) is fixedly connected to one side of the rectangular rod (33).

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