A breathing aid

Abstract

The present invention belongs to the field of nursing technology, and in particular to an auxiliary breathing device, comprising a base plate, a replaceable mask mouth mechanism is installed at the bottom end of the base plate, and a breathing mechanism for auxiliary breathing is installed at the top end of the base plate; the mask mouth mechanism comprises a mounting sleeve, a fixed cover and a cushioning layer, an air hole is opened on the inner side wall of the base plate, the mounting sleeve is threadedly connected to the inner side wall of the air hole, the fixed cover is fixedly connected to the outer side of the bottom end of the mounting sleeve, and the cushioning layer is installed on the concave side of the fixed cover; a ventilation component is installed on the top end of the base plate, and the sealing ring is installed on the bottom end of the ventilation component. Through the mask mouth mechanism, breathing mechanism and nose sealing mechanism, direct contact with the patient's oral cavity is avoided, and the patient's exhaled air will not be exhaled into the folding tube, thereby reducing the possibility of virus transmission carried by the patient, and can protect medical staff as much as possible during rescue when it is unknown whether the patient carries the virus.

Description

Technical Field

[0001] The invention belongs to the technical field of nursing, and in particular relates to an auxiliary breathing device. Background Art

[0002] There are also asymptomatic carriers of the new coronavirus. Before the nucleic acid test corresponding to the new coronavirus is available, it is impossible to determine whether the patient is carrying or infected with the new coronavirus. However, the patient needs assisted breathing at this time. Traditional active assisted breathing is in direct contact with the patient, which is easy to be infected with the new coronavirus or other infectious diseases. In addition, traditional assisted breathing devices are cumbersome to operate and inconvenient to fix the mouth and nose. Active assisted breathing is required when the patient has no spontaneous breathing, or when the spontaneous breathing is laborious or weak. However, the safety of medical staff cannot be guaranteed. In addition to the gas exhaled by the patient, medical staff should wear masks for self-protection and reduce direct contact with patients as much as possible.

[0003] In order to solve the above problems, this application proposes an auxiliary breathing device. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a respiratory assistance device, which has the characteristic of conveniently performing active respiratory assistance on patients who are unknown virus carriers.

[0005] To achieve the above object, the present invention provides the following technical solution: an auxiliary breathing device, comprising a bottom plate, a replaceable mask mouth mechanism is installed at the bottom end of the bottom plate, and a breathing mechanism for auxiliary breathing is installed at the top end of the bottom plate;

[0006] The cover mouth mechanism comprises a mounting sleeve, a fixed cover and a cushioning layer, the inner side wall of the bottom plate is provided with an air hole, the inner side wall of the air hole is threadedly connected with the mounting sleeve, the outer side of the bottom end of the mounting sleeve is fixedly connected with the fixed cover, and the cushioning layer is installed on the concave side of the fixed cover;

[0007] The breathing mechanism includes a ventilation component, a sealing ring, a breathing component and a ventilation auxiliary component. The ventilation component is installed on the top of the base plate, the sealing ring is installed on the bottom of the ventilation component, the breathing component is installed on the top of the ventilation component, and the ventilation auxiliary component is installed below the breathing component.

[0008] As a preferred auxiliary breathing device of the present invention, an annular groove is provided on the inner side of the top end of the bottom plate, the movement trajectory of the sealing ring is linear, and the annular groove is arranged on the movement trajectory of the sealing ring.

[0009] As a preferred auxiliary breathing device of the present invention, the ventilation component is mainly composed of a sliding rod, a pressure plate and a pull ring, two of the sliding rods are fixedly connected to the top of the base plate, the two sliding rods are symmetrically arranged on both sides of the air hole of the base plate, the pressure plate is provided above the base plate, a sliding groove is opened on the inner side of the pressure plate corresponding to the position of the sliding rod, the inner side wall of the sliding groove is slidably connected to the sliding rod, the pull ring is fixedly connected to the top of the pressure plate, and a connecting hole is opened on the inner side of the pressure plate corresponding to the position of the air hole of the base plate.

[0010] As a preferred auxiliary breathing device of the present invention, the breathing component is mainly composed of a folding tube, a top plate, a spring A and a one-way valve, the folding tube is fixedly connected to the pressure plate just above the connecting hole, the top of the folding tube is fixedly connected to the top plate, an air inlet hole is opened on the inner side of the top plate, the one-way valve is installed on the inner side wall of the air inlet hole, and the spring A is fixedly connected between the bottom end of the top plate and the pressure plate.

[0011] As a preferred auxiliary breathing device of the present invention, the ventilation auxiliary component is mainly composed of two closing plates and a push rod. The left and right sides of the inner wall of the connecting hole of the pressure plate are rotatably connected to the closing plates through a torsion shaft. The push rod is provided directly below the closing plate. The push rod is arranged in an "L" shape, and one end of the push rod away from the closing plate is fixedly connected to the air hole of the bottom plate.

[0012] As a preferred auxiliary breathing device of the present invention, a nose sealing mechanism for sealing the nose is also installed on the bottom plate, and the nose sealing mechanism includes a rotating assembly, a slider, a clamping assembly and a nose clip assembly. The rotating assembly is installed on the right side of the top of the bottom plate, and the slider is slidably installed on the side of the rotating assembly away from the bottom plate, and the clamping assembly and the nose clip assembly are installed on the inner side of the slider.

[0013] As a preferred auxiliary breathing device of the present invention, the rotating assembly is mainly composed of a rotating sleeve, a rotating rod, a connecting sleeve, a clamping block and a spring B. The rotating sleeve is fixedly connected to the top of the bottom plate, and a rotating groove is opened on the inner side of the front end face of the rotating sleeve, and the inner side wall of the rotating groove is rotatably connected to the rotating rod through a rotating shaft. A connecting groove A is opened on the inner side of the rotating rod, and the connecting sleeve is slidably connected to the inner side wall of the connecting groove. A connecting groove B begins to be opened on the inner side of the connecting sleeve, and the spring B is fixedly connected between the inner side wall of the connecting groove B and the inner side wall of the connecting groove A. A square groove is opened on the inner side of the rear end face of the rotating sleeve, and the clamping block is slidably connected to the inner side wall of the square groove. The clamping block is fixedly connected to the rear end face of the connecting sleeve, and the rotating rod and the connecting sleeve are both arranged in square strip shapes.

[0014] As a preferred auxiliary breathing device of the present invention, the locking assembly is mainly composed of a spring C, a push plate and a clamping rod. The outer side of the rotating rod is slidably connected to the slider, the rotating rod passes through the surface of the slider, and a spring groove is provided on the inner side of the slider. The top of the inner wall of the spring groove is fixedly connected to the spring C, the bottom end of the spring C is fixedly connected to the push plate, the inner side of the push plate is fixedly connected to the clamping rod, the clamping rod passes through the surface of the slider, the outer side of the clamping rod is slidably connected to the slider, and a clamping groove is provided on the inner side of the rotating rod away from the rotating sleeve. The movement trajectory of the clamping rod is linear, and the clamping groove is arranged on the movement trajectory of the rotating rod.

[0015] As a preferred auxiliary breathing device of the present invention, the nose clip assembly is mainly composed of a connecting rod and a nose clip, a limiting groove is provided on the inner side of the sliding block, the connecting rod is slidably connected to the inner side wall of the limiting groove, the nose clip is fixedly connected to the bottom end of the connecting rod, the connecting rod is arranged in a square strip shape, and the outer side of the connecting rod is in contact with the limiting groove.

[0016] As a preferred auxiliary breathing device of the present invention, the bottom end of the base plate is also fixedly connected to an elastic band, the number of the elastic bands is two, and the two elastic bands are symmetrically arranged at the bottom end of the base plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The mask mouth mechanism, breathing mechanism and nose sealing mechanism are set to avoid direct contact with the patient's mouth, and the patient's exhaled air will not be exhaled into the folding tube, thereby reducing the possibility of virus transmission carried by the patient. In addition, when it is unknown whether the patient is carrying the virus, medical staff can be protected as much as possible during rescue. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the installation structure of the mask mouth mechanism in the present invention;

[0022] Figure 3 It is a schematic diagram of the installation structure of the breathing mechanism in the present invention;

[0023] Figure 4 It is a schematic diagram of the installation structure of the ventilation component in the present invention;

[0024] Figure 5It is a schematic diagram of the installation structure of the breathing assembly in the present invention;

[0025] Figure 6 It is a schematic diagram of the installation structure of the ventilation auxiliary component in the present invention;

[0026] Figure 7 Schematic diagram of the installation structure of the nose sealing mechanism in the present invention;

[0027] Figure 8 It is a schematic diagram of the installation structure of the rotating assembly in the present invention;

[0028] Fig. 9 It is a schematic diagram of the installation structure of the card block in the present invention;

[0029] Fig.10 It is a schematic diagram of the installation structure of the clamping assembly in the present invention;

[0030] Fig.11 Schematic diagram of the installation structure of the nose clip assembly in the present invention;

[0031] Fig.12 It is a schematic diagram of the installation structure of the nose clip in the present invention;

[0032] In the figure:

[0033] 1. Bottom plate;

[0034] 2. Cover opening mechanism; 21. Installation sleeve; 22. Fixed cover; 23. Pad protection layer;

[0035] 3. Breathing mechanism; 31. Ventilation assembly; 311. Sliding rod; 312. Pressing plate; 313. Pull ring; 32. Sealing ring; 33. Breathing assembly; 331. Folding tube; 332. Top plate; 333. Spring A; 334. One-way valve; 34. Ventilation auxiliary assembly; 341. Closing plate; 342. Top rod;

[0036] 4. Nose sealing mechanism; 41. Rotating assembly; 411. Rotating sleeve; 412. Rotating rod; 413. Connecting sleeve; 414. Clamping block; 415. Spring B; 42. Sliding block; 43. Clamping assembly; 431. Spring C; 432. Push plate; 433. Clamping rod; 44. Nose clip assembly; 441. Connecting rod; 442. Nose clip;

[0037] 5. Elastic band. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0039] Example 1

[0040] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown;

[0041] An auxiliary breathing device comprises a bottom plate 1, a replaceable mask mouth mechanism 2 is installed at the bottom end of the bottom plate 1, and a breathing mechanism 3 for auxiliary breathing is installed at the top end of the bottom plate 1;

[0042] The cover mouth mechanism 2 includes a mounting sleeve 21, a fixed cover 22 and a cushioning layer 23. An air hole is opened on the inner side wall of the bottom plate 1. The mounting sleeve 21 is threadedly connected to the inner side wall of the air hole. The fixing cover 22 is fixedly connected to the outer side of the bottom end of the mounting sleeve 21. The cushioning layer 23 is installed on the concave side of the fixing cover 22.

[0043] The breathing mechanism 3 includes a ventilation component 31, a sealing ring 32, a breathing component 33 and a ventilation auxiliary component 34. The ventilation component 31 is installed on the top of the base plate 1, the sealing ring 32 is installed on the bottom of the ventilation component 31, the breathing component 33 is installed on the top of the ventilation component 31, and the ventilation auxiliary component 34 is installed below the breathing component 33.

[0044] In this embodiment: prepare a new mask mouth mechanism 2, screw the installation sleeve 21 into the air hole of the base plate 1, and if the patient's physical condition permits, put the elastic band 5 over the patient's head, so that the elastic band 5 tightens the base plate 1 so that the mask mouth mechanism 2 covers the patient's mouth, the fixed mask 22 covers the patient's mouth, the cushion layer 23 fits with the outer circle of the patient's mouth, and the ventilation component 31 is pressed down to fit with the base plate 1, the ventilation auxiliary component 34 is opened, and assisted breathing is performed by pressing the breathing component 33.

[0045] It should be noted that: in this embodiment,

[0046] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown;

[0047] In an optional embodiment, an annular groove is provided on the inner side of the top of the bottom plate 1 , and the movement trajectory of the sealing ring 32 is linear, and the annular groove is arranged on the movement trajectory of the sealing ring 32 .

[0048] In this embodiment: in combination with the above, when the slide rod 311 is in contact with the bottom plate 1 , the sealing ring 32 moves to the annular groove of the bottom plate 1 , thereby reducing the leakage between the connecting hole of the pressure plate 312 and the air hole of the bottom plate 1 .

[0049] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown;

[0050] In an optional embodiment, the ventilation component 31 is mainly composed of a sliding rod 311, a pressure plate 312 and a pull ring 313. Two sliding rods 311 are fixedly connected to the top of the base plate 1. The two sliding rods 311 are symmetrically arranged on both sides of the air hole of the base plate 1. A pressure plate 312 is provided above the base plate 1. A sliding groove is opened on the inner side of the pressure plate 312 at the position corresponding to the sliding rod 311. The inner side wall of the sliding groove is slidably connected to the sliding rod 311. A pull ring 313 is fixedly connected to the top of the pressure plate 312. A connecting hole is opened on the inner side of the pressure plate 312 at the position corresponding to the air hole of the base plate 1.

[0051] In an optional embodiment, the breathing component 33 is mainly composed of a folding tube 331, a top plate 332, a spring A333 and a one-way valve 334. The folding tube 331 is fixedly connected to the pressure plate 312 just above the connecting hole. The top of the folding tube 331 is fixedly connected to the top plate 332. An air inlet hole is opened on the inner side of the top plate 332. A one-way valve 334 is installed on the inner wall of the air inlet hole. A spring A333 is fixedly connected between the bottom end of the top plate 332 and the pressure plate 312.

[0052] In an optional embodiment, the ventilation auxiliary component 34 is mainly composed of two closing plates 341 and a push rod 342. The left and right sides of the inner wall of the connecting hole of the pressure plate 312 are rotatably connected to the closing plate 341 through a torsion shaft. A push rod 342 is provided directly below the closing plate 341. The push rod 342 is arranged in an "L" shape, and the end of the push rod 342 away from the closing plate 341 is fixedly connected to the air hole of the bottom plate 1.

[0053] In this embodiment: in combination with the above, when the patient needs assisted breathing, a new mask mouth mechanism 2 is prepared, and the installation sleeve 21 is screwed into the air hole of the bottom plate 1. If the patient's physical condition allows, the elastic band 5 is put over the patient's head, so that the elastic band 5 tightens the bottom plate 1 so that the mask mouth mechanism 2 covers the patient's mouth, the fixed mask 22 covers the patient's mouth, the cushion protective layer 23 fits with the outer circle of the patient's mouth, the finger holds the pull ring 313, and the pull ring 313 is pressed downward to make the pressing plate 312 fit downward with the bottom plate 1, and the sealing ring 32 is inserted into the annular groove of the bottom plate 1. The sealing ring 32 seals and reinforces the connection between the pressing plate 312 and the bottom plate 1, so that the connection between the air hole and the connecting hole reduces air leakage. At the same time, the closing plate 341 moves downward and is pushed open by the push rod 342, and then the top plate 332 is pressed. The top plate 332 passes the air in the folding tube 331 through the connecting hole in sequence. The through hole and the air hole are pressed into the patient's mouth, and the patient's nose is blocked, so that air is pressed into the patient's lungs, and then the pull ring 313 is lifted to separate the pressure plate 312 from the bottom plate 1, and the torsion shaft drives the closing plate 341 to reset, and the two closing plates 341 close the connecting hole, and the spring A333 pushes the top plate 332 away from the pressure plate 312. The one-way valve 334 on the top plate 332 is used for the air intake in the folding tube 331. At this time, the closing plate 341 closes the connecting hole, and the patient automatically exhales the air through the pressure of the chest cavity, and then presses down the pressure plate 312 again and then presses the top plate 332 to perform assisted breathing, avoiding direct contact with the patient's mouth, and the patient's exhaled air will not be exhaled into the folding tube 331, thereby reducing the possibility of virus transmission carried by the patient, and can protect medical staff as much as possible during rescue when it is unknown whether the patient carries the virus.

[0054] like Figure 1 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown;

[0055] In an optional embodiment, a nose sealing mechanism 4 for sealing the nose is also installed on the base plate 1, and the nose sealing mechanism 4 includes a rotating component 41, a slider 42, a clamping component 43 and a nose clip component 44. The rotating component 41 is installed on the right side of the top of the base plate 1, and the slider 42 is slidably installed on the side of the rotating component 41 away from the base plate 1, and the clamping component 43 and the nose clip component 44 are installed on the inner side of the slider 42.

[0056] In an optional embodiment, the rotating component 41 is mainly composed of a rotating sleeve 411, a rotating rod 412, a connecting sleeve 413, a clamping block 414 and a spring B415. The rotating sleeve 411 is fixedly connected to the top of the bottom plate 1. A rotating groove is opened on the inner side of the front end surface of the rotating sleeve 411. The inner side wall of the rotating groove is rotatably connected to the rotating rod 412 through a rotating shaft. A connecting groove A is opened on the inner side of the rotating rod 412. The inner side wall of the connecting groove is slidably connected to the connecting sleeve 413. A connecting groove B begins to be opened on the inner side of the connecting sleeve 413. A spring B415 is fixedly connected between the inner side wall of the connecting groove B and the inner side wall of the connecting groove A. A square groove is opened on the inner side of the rear end surface of the rotating sleeve 411. The inner side wall of the square groove is slidably connected to the clamping block 414. The rear end surface of the connecting sleeve 413 is fixedly connected to the clamping block 414. The rotating rod 412 and the connecting sleeve 413 are both arranged in square strips.

[0057] In an optional embodiment, the locking assembly 43 is mainly composed of a spring C431, a push plate 432 and a locking rod 433. The outer side of the rotating rod 412 is slidably connected to the slider 42, the rotating rod 412 passes through the surface of the slider 42, and a spring groove is provided on the inner side of the slider 42. The top of the inner wall of the spring groove is fixedly connected with the spring C431, the bottom end of the spring C431 is fixedly connected with the push plate 432, the inner side of the push plate 432 is fixedly connected with the locking rod 433, the locking rod 433 passes through the surface of the slider 42, the outer side of the locking rod 433 is slidably connected to the slider 42, a locking groove is provided on the inner side of the rotating rod 412 away from the rotating sleeve 411, the movement trajectory of the locking rod 433 is linear, and the locking groove is set on the movement trajectory of the rotating rod 412.

[0058] In an optional embodiment, the nose clip assembly 44 is mainly composed of a connecting rod 441 and a nose clip 442. A limiting groove is provided on the inner side of the slider 42. The connecting rod 441 is slidably connected to the inner wall of the limiting groove. The nose clip 442 is fixedly connected to the bottom end of the connecting rod 441. The connecting rod 441 is arranged in a square strip shape, and the outer side of the connecting rod 441 fits in the limiting groove.

[0059] In this embodiment: in combination with the above, the fixed cover 22 covers the patient's mouth, the cushion protective layer 23 fits with the outer circle of the patient's mouth, and then the block 414 is pulled to separate from the square groove of the rotating sleeve 411, the rotating rod 412 is connected to the rotating sleeve 411 through the rotating shaft, and then the rotating rod 412 is rotated to be horizontal, and then the block 414 is released, so that the spring B415 pulls the connecting sleeve 413 and then the block 414 is received in the square groove of the rotating sleeve 411, and then the block 414 is limited by the square groove to prevent the block 414 from rotating at will, and the block 414 limits the connecting sleeve 413 to prevent the connecting sleeve 413 from rotating at will, and the connecting sleeve 413 and the rotating rod 412 are both square strip structures, and the connecting sleeve 413 cannot rotate at will, thereby restricting the rotating rod 412, thereby keeping the rotating rod 41 2, then pull the card rod 433 to separate from the card slot of the rotating rod 412, slide the slider 42 on the rotating rod 412, and the slider 42 slides from left to right so that the nose clip 442 is aligned with the patient's nose and injected, and the connecting rod 441 can slide in the slider 42, so as to adjust the distance of the nose clip 442 relative to the nose, so that the nose clip 442 can stably and reliably clamp the nose, and then release the card rod 433, and the spring C431 pushes the push plate 432 so that the card rod 433 is inserted into the card slot of the rotating rod 412 and limits the position of the slider 42, thereby limiting the position of the nose clip 442, and then operate the breathing mechanism 3 to perform assisted breathing, thereby reducing direct contact with the patient as much as possible, reducing the risk of virus transmission, and conveniently blocking the patient's nostrils.

[0060] like Figure 1 As shown;

[0061] In an optional embodiment, an elastic band 5 is also fixedly connected to the bottom end of the base plate 1 . The number of the elastic bands 5 is two, and the two elastic bands 5 are symmetrically arranged at the bottom end of the base plate 1 .

[0062] In this embodiment: in combination with the above, if the patient's physical condition permits, the elastic band 5 is put over the patient's head, so that the elastic band 5 tightens the bottom plate 1 so that the mask mouth mechanism 2 covers the patient's mouth, the fixed cover 22 covers the patient's mouth, and the cushion protective layer 23 fits with the outer circle of the patient's mouth. There is no need to manually press the bottom plate 1 to make the mask mouth mechanism 2 fit with the patient, and the operation is simple.

[0063] The working principle and use process of the present invention are as follows: when the device is in use, when the patient needs assisted breathing, a new mask mouth mechanism 2 is prepared, and the installation sleeve 21 is screwed into the air hole of the bottom plate 1. If the patient's physical condition allows, the elastic band 5 is put over the patient's head, so that the elastic band 5 tightens the bottom plate 1 so that the mask mouth mechanism 2 covers the patient's mouth, the fixed cover 22 covers the patient's mouth, and the cushion protective layer 23 fits with the outer circle of the patient's mouth, and then the clamping block 414 is pulled to separate from the square groove of the rotating sleeve 411, the rotating rod 412 is connected to the rotating sleeve 411 through the rotating shaft, and then the rotating rod 412 is rotated to be horizontal, and then the clamping block 414 is released, so that the spring B415 pulls the connecting sleeve 413 and then the clamping block 414 is received in the square groove of the rotating sleeve 411. Then the block 414 is limited by the square groove to prevent the block 414 from rotating at will. The block 414 limits the connecting sleeve 413 to prevent the connecting sleeve 413 from rotating at will. The connecting sleeve 413 and the rotating rod 412 are both square strip structures. The connecting sleeve 413 cannot rotate at will and thus limits the rotating rod 412, thereby maintaining the position of the rotating rod 412. Then the card rod 433 is pulled to separate from the card slot of the rotating rod 412, and the slider 42 is slid on the rotating rod 412. The slider 42 slides from left to right, so that the nose clip 442 is aligned with the patient's nose and injected. The connecting rod 441 can slide in the slider 42, so that the distance between the nose clip 442 and the nose can be adjusted, so that the nose clip 442 can stably and reliably clamp the nose. At this time, the card rod 433 is released, and the spring C431 The push plate 432 is pushed so that the locking rod 433 is inserted into the locking groove of the rotating rod 412 and the position of the slider 42 is limited, thereby limiting the position of the nose clip 442. Then, the finger holds the pull ring 313 and presses the pull ring 313 downward so that the pressing plate 312 is fitted downward with the bottom plate 1. The sealing ring 32 is inserted into the ring groove of the bottom plate 1. The sealing ring 32 seals and reinforces the connection between the pressing plate 312 and the bottom plate 1, so that the connection between the air hole and the connecting hole reduces air leakage. At the same time, the closing plate 341 moves downward and is pushed open by the ejector rod 342. Then, the top plate 332 is pressed. The top plate 332 presses the air in the folding tube 331 into the patient's mouth through the connecting hole and the air hole in turn, and the patient's nose is blocked, thereby pressing the air into the patient's lungs. Then, the pull ring 313 is lifted to make The pressure plate 312 is separated from the bottom plate 1, and the torsion shaft drives the closing plate 341 to reset. The two closing plates 341 close the connecting hole, and the spring A333 pushes the top plate 332 away from the pressure plate 312. The one-way valve 334 on the top plate 332 is used for the air intake in the folding tube 331. At this time, the closing plate 341 closes the connecting hole, and the patient automatically exhales the air through the pressure of the chest cavity, and then presses the pressure plate 312 down again and then presses the top plate 332 to perform assisted breathing, avoiding direct contact with the patient's mouth. The patient's exhaled air will not be exhaled into the folding tube 331, thereby reducing the possibility of virus transmission carried by the patient, and can protect medical staff as much as possible during rescue when it is unknown whether the patient carries the virus. When it is inconvenient for the patient to put on the elastic band 5,The bottom plate 1 needs to be pressed down by hand to make the cushion layer 23 close to the patient's mouth, and then the thumb or index finger passes through the pull ring 313 to drive and move the pull ring 313 up and down, which is convenient for assisting breathing and improving the protection of medical staff as much as possible.

[0064] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A breathing aid, characterized in that: The invention comprises a bottom plate (1), a replaceable mask mouth mechanism (2) being installed at the bottom end of the bottom plate (1), and a breathing mechanism (3) for assisting breathing being installed at the top end of the bottom plate (1); the mask mouth mechanism (2) comprising a mounting sleeve (21), a fixed cover (22) and a cushioning layer (23); an air hole is provided on the inner side wall of the bottom plate (1), the mounting sleeve (21) is threadedly connected to the inner side wall of the air hole, the fixed cover (22) is fixedly connected to the outer side of the bottom end of the mounting sleeve (21), and the cushioning layer (23) is installed on the concave side of the fixed cover (22); The breathing mechanism (3) comprises a ventilation component (31), a sealing ring (32), a breathing component (33) and a ventilation auxiliary component (34); the ventilation component (31) is installed at the top end of the bottom plate (1), the sealing ring (32) is installed at the bottom end of the ventilation component (31), the breathing component (33) is installed at the top end of the ventilation component (31), and the ventilation auxiliary component (34) is installed below the breathing component (33); The bottom plate (1) is also provided with a nose sealing mechanism (4) for sealing the nose, the nose sealing mechanism (4) comprising a rotating assembly (41), a slider (42), a clamping assembly (43) and a nose clip assembly (44), the rotating assembly (41) being installed on the right side of the top end of the bottom plate (1), the slider (42) being slidably installed on the side of the rotating assembly (41) away from the bottom plate (1), and the clamping assembly (43) and the nose clip assembly (44) being installed on the inner side of the slider (42); The rotating assembly (41) is mainly composed of a rotating sleeve (411), a rotating rod (412), a connecting sleeve (413), a clamping block (414) and a spring B (415). The top of the bottom plate (1) is fixedly connected to the rotating sleeve (411). The inner side of the front end surface of the rotating sleeve (411) is provided with a rotating groove. The inner side wall of the rotating groove is rotatably connected to the rotating rod (412) via a rotating shaft. The inner side of the rotating rod (412) is provided with a connecting groove A. The inner side wall of the connecting groove is slidably connected to the connecting rod (412). A connecting sleeve (413), wherein a connecting groove B is provided on the inner side of the connecting sleeve (413), and the spring B (415) is fixedly connected between the inner side wall of the connecting groove B and the inner side wall of the connecting groove A; a square groove is provided on the inner side of the rear end surface of the rotating sleeve (411), and the clamping block (414) is slidably connected to the inner side wall of the square groove; the clamping block (414) is fixedly connected to the rear end surface of the connecting sleeve (413), and the rotating rod (412) and the connecting sleeve (413) are both arranged in a square strip shape; The engaging assembly (43) is mainly composed of a spring C (431), a push plate (432) and a clamping rod (433); the outer side of the rotating rod (412) is slidably connected to the slider (42); the rotating rod (412) passes through the surface of the slider (42); an elastic groove is provided on the inner side of the slider (42); the top of the inner side wall of the elastic groove is fixedly connected to the spring C (431); the bottom end of the spring C (431) is fixedly connected to the pushing plate (432); the inner side of the pushing plate (432) is fixedly connected to the clamping rod (433); the clamping rod (433) passes through the surface of the slider (42); the outer side of the clamping rod (433) is slidably connected to the slider (42); a clamping groove is provided on the inner side of the rotating rod (412) away from the rotating sleeve (411); the movement trajectory of the clamping rod (433) is linear; and the clamping groove is arranged on the movement trajectory of the rotating rod (412); The nose clip assembly (44) is mainly composed of a connecting rod (441) and a nose clip (442). A limiting groove is provided on the inner side of the slider (42). The connecting rod (441) is slidably connected to the inner side wall of the limiting groove. The nose clip (442) is fixedly connected to the bottom end of the connecting rod (441). The connecting rod (441) is arranged in a square strip shape. The outer side of the connecting rod (441) is in contact with the limiting groove. The ventilation assembly (31) is mainly composed of a sliding rod (311), a pressure rod (312), and a pressure rod (314). The bottom plate (1) is composed of a plate (312) and a pull ring (313), the top of the bottom plate (1) is fixedly connected to two sliding rods (311), the two sliding rods (311) are symmetrically arranged on both sides of the air hole of the bottom plate (1), the pressure plate (312) is arranged above the bottom plate (1), a sliding groove is opened on the inner side of the pressure plate (312) at the position corresponding to the sliding rod (311), the inner side wall of the sliding groove is slidably connected to the sliding rod (311), and the top of the pressure plate (312) is fixed The pull ring (313) is connected, and a connecting hole is opened on the inner side of the pressure plate (312) at a position corresponding to the air hole of the bottom plate (1); the breathing component (33) is mainly composed of a folding tube (331), a top plate (332), a spring A (333) and a one-way valve (334), and the pressure plate (312) is fixedly connected to the folding tube (331) just above the connecting hole, and the top plate (332) is fixedly connected to the top of the folding tube (331). An air inlet hole is opened on the inner side of the plate (332), and the one-way valve (334) is installed on the inner side wall of the air inlet hole. The spring A (333) is fixedly connected between the bottom end of the top plate (332) and the pressure plate (312); the ventilation auxiliary component (34) is mainly composed of two closing plates (341) and a top rod (342). The left and right sides of the inner side wall of the connecting hole of the pressure plate (312) are rotatably connected to the closing plates (341) through a torsion shaft. The two closing plates (341) The connecting hole is closed, and the push rod (342) is provided directly below the closing plate (341). The push rod (342) is arranged in an "L" shape, and one end of the push rod (342) away from the closing plate (341) is fixedly connected to the air hole of the bottom plate (1). When the pressing plate (312) moves downward to fit the bottom plate (1), the closing plate (341) moves downward and is pushed open by the push rod (342).

2. The respiratory assist device according to claim 1, characterized in that: An annular groove is provided on the inner side of the top end of the bottom plate (1); the movement track of the sealing ring (32) is linear; and the annular groove is arranged on the movement track of the sealing ring (32).

3. The respiratory assist device according to claim 1, characterized in that: The bottom end of the base plate (1) is also fixedly connected with an elastic band (5), the number of the elastic bands (5) is two, and the two elastic bands (5) are symmetrically arranged at the bottom end of the base plate (1).

Images