Air suction valve for breathing machine and breathing machine

Abstract

The utility model is applicable to the technical field of breathing machines, and provides an inspiration valve for a breathing machine and the breathing machine, the inspiration valve comprises a valve seat, the valve seat is provided with an air inlet, a main air passage, a safety valve passage and a pressure relief opening communicated with the safety valve passage; the base comprises a base body internally provided with a first cavity and a first pipeline arranged in the first cavity, the first cavity communicates with the pressure relief opening, and the first pipeline is connected with the main air channel; the mounting seat comprises a mounting seat main body internally provided with a second cavity and a second pipeline connected with the first pipeline, and the second cavity is communicated with the first cavity; the cover plate covers the second cavity and is provided with an exhaust port communicated with the second cavity; one end of the air outlet bent pipe penetrates through the cover plate and is connected with the second pipeline, and the orthographic projection of the air outlet bent pipe in the direction of the cover plate covers the exhaust port. According to the air suction valve, the exhaust port can be hidden, the attractiveness of the whole breathing machine is improved, the structural design of a shell of the breathing machine can be simplified, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilators, in particular to an inhalation valve for a ventilator and the ventilator. Background Art

[0002] As a device with artificial ventilation function, the ventilator has been widely used in the treatment of respiratory failure, sleep apnea hypopnea syndrome and other diseases caused by various reasons. It occupies a very important position in the field of modern medicine.

[0003] In the prior art, the inhalation valve of the ventilator usually includes a valve seat with an air inlet, a base connected to the valve seat, and an air outlet elbow connected to the base, wherein the valve seat is provided with a safety valve channel for installing a safety valve, and the valve seat is provided with a pressure relief port connected to the safety valve channel, and an exhaust port connected to the pressure relief port needs to be provided on the ventilator housing. When the pressure of the air inlet entering the air inlet through the intake pipeline is greater than the preset pressure relief value, the safety valve starts to relieve pressure, and part of the gas is discharged from the exhaust port through the pressure relief port to ensure that the pressure is lower than the safety threshold and to prevent the patient from suffering from barotrauma. However, in the prior art, the exhaust port is usually provided on the side of the ventilator housing, and the exhaust port is unobstructed, which affects the appearance of the ventilator as a whole; and a hole structure needs to be opened in the ventilator housing corresponding to the exhaust port, resulting in a complex design of the ventilator housing structure, high mold cost of the ventilator housing, and difficult processing. Utility Model Content

[0004] The utility model provides an inhalation valve for a ventilator, aiming to solve the problem in the prior art that the exhaust port setting of the inhalation valve of the ventilator affects the overall appearance of the ventilator, and leads to complex structural design of the ventilator shell, high mold cost and difficult processing.

[0005] The utility model is implemented by providing an inhalation valve for a ventilator, comprising:

[0006] A valve seat, wherein the valve seat is provided with an air inlet, a main air passage communicating with the air inlet, a safety valve passage communicating with the main air passage and used for installing a safety valve, and a pressure relief port communicating with the safety valve passage;

[0007] A base connected to the valve seat, comprising a base body having a first cavity therein, and a first pipe disposed in the first cavity, the first cavity being communicated with the pressure relief port, and the first pipe being connected with the main airway;

[0008] A mounting seat connected to the base, comprising a mounting seat body provided with a second cavity therein, a second pipe provided in the second cavity and connected to the first pipe, wherein the second cavity is in communication with the first cavity;

[0009] A cover plate for covering the second cavity, wherein the cover plate is provided with an exhaust port communicating with the second cavity; and

[0010] An air outlet elbow, one end of which passes through the cover plate and is connected to the second pipe, and the orthographic projection of the air outlet elbow toward the cover plate covers the exhaust port.

[0011] Preferably, the base is provided with a first connecting plate located in the first cavity, the first connecting plate is penetrated by a first communicating hole, and the first pipe passes through and is fixed on the first connecting plate.

[0012] Preferably, a second connecting plate located in the second cavity is provided in the mounting seat, a second connecting plate is penetrated by a second communicating hole, and the second pipe passes through and is fixed on the second connecting plate.

[0013] Preferably, the first connecting holes and the second connecting holes are both multiple and distributed in a ring array.

[0014] Preferably, the air outlet elbow is connected to the cover plate to form an integrated structure.

[0015] Preferably, the mounting seat is snap-connected to the base.

[0016] Preferably, a clamping ring is provided at one end of the base body, and a plurality of slots distributed in a circular array are provided on the clamping ring, and a plurality of buckles are provided on the mounting seat body to cooperate with the plurality of slots, and one end of the mounting seat body passes through the clamping ring and is plugged into the base body, and each buckle is inserted into the corresponding slot.

[0017] Preferably, the exhaust port is an arc-shaped hole.

[0018] Preferably, the mounting seat further comprises a plurality of anti-slip grooves arranged around the outer circumferential surface of the mounting seat body.

[0019] The utility model also provides a respirator, comprising the above-mentioned inhalation valve for the respirator.

[0020] The utility model provides an inhalation valve for a ventilator by providing a mounting seat and a cover plate, an exhaust port is opened on the cover plate, an exhaust elbow is passed through the cover plate and connected to the mounting seat, and the pressure relief port on the valve seat is connected to the exhaust port on the cover plate through the first cavity and the second cavity in sequence, and the exhaust port is covered by the orthographic projection of the exhaust elbow in the direction of the cover plate, and the exhaust port is covered by the orthographic projection of the exhaust elbow in the direction of the cover plate, and the side surface of the shell of the ventilator using the inhalation valve does not need to separately open a hole structure at the corresponding exhaust port position, and the shell of the ventilator only needs to retain the hole structure corresponding to the original exhaust elbow, which can simplify the structural design of the shell of the ventilator, simplify the mold structure of the shell of the ventilator, reduce the mold cost and processing difficulty, and thus reduce the production cost; moreover, because the orthographic projection of the exhaust elbow in the direction of the cover plate covers the exhaust port, the exhaust elbow can block the exhaust port when viewed straight on, so that the exhaust port is hidden, thereby improving the aesthetics of the overall appearance of the ventilator. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional schematic diagram of an inhalation valve for a ventilator provided in an embodiment of the utility model;

[0022] Figure 2 A three-dimensional exploded view of an inhalation valve for a ventilator provided in an embodiment of the utility model;

[0023] Figure 3 Another exploded perspective view of an inhalation valve for a ventilator provided by an embodiment of the utility model;

[0024] Figure 4 A schematic front view of an inhalation valve for a ventilator provided in an embodiment of the utility model;

[0025] Figure 5 A schematic top view of an inhalation valve for a ventilator provided in an embodiment of the utility model;

[0026] Figure 6 For along Figure 5 Schematic diagram of the cross section along line AA.

[0027] Description of reference numerals:

[0028] 1. Base; 10. First cavity; 11. Base body; 12. Flushing pipe; 13. First pipe; 2. Valve seat; 20. Air inlet; 21. Pressure relief port; 22. Main airway; 23. Safety valve channel; 3. Mounting seat; 30. Second cavity; 31. Mounting seat body; 32. Second pipe; 4. Cover plate; 41. Exhaust port; 5. Air outlet elbow; 15. First connecting plate; 151. First connecting hole; 35. Second connecting plate; 351. Second connecting hole; 16. Snap ring; 161. Slot; 34. Buckle; 36. Anti-slip groove. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0030] The embodiment of the utility model provides an inhalation valve for a ventilator, which is provided with a mounting seat and a cover plate, wherein an exhaust port is opened on the cover plate, an exhaust elbow passes through the cover plate and is connected to the mounting seat, and a pressure relief port on the valve seat is connected to the exhaust port on the cover plate through a first cavity and a second cavity in sequence, and an orthographic projection of the exhaust elbow in the direction of the cover plate covers the exhaust port, so that the side surface of the shell of the ventilator using the inhalation valve does not need to separately open a hole structure at the corresponding exhaust port position, and the shell of the ventilator only needs to retain the hole structure corresponding to the original exhaust elbow, which can simplify the structural design of the ventilator shell, simplify the mold structure, reduce the mold cost and processing difficulty, and thus reduce the production cost; moreover, since the orthographic projection of the exhaust elbow in the direction of the cover plate covers the exhaust port, the exhaust elbow can block the exhaust port when viewed straight on, thereby hiding the exhaust port and improving the aesthetics of the overall appearance of the ventilator.

[0031] Please refer to Figure 1-Figure 4 The utility model embodiment provides an inhalation valve for a ventilator, comprising:

[0032] The valve seat 2 is provided with an air inlet 20, a main air passage 22 communicating with the air inlet 20, a safety valve passage 23 communicating with the main air passage 22 and used for installing a safety valve, and a pressure relief port 21 communicating with the safety valve passage 23;

[0033] The base 1 connected to the valve seat 2 includes a base body 11 having a first cavity 10 therein, and a first pipe 13 disposed in the first cavity 10, the first cavity 10 is communicated with the pressure relief port 21, and the first pipe 13 is connected with the main airway 22;

[0034] The mounting seat 3 connected to the base 1 includes a mounting seat body 31 having a second cavity 30 therein, and a second pipe 32 disposed in the second cavity 30 and connected to the first pipe 13, wherein the second cavity 30 is in communication with the first cavity 10;

[0035] A cover plate 4 covering the second cavity 30, wherein the cover plate 4 is provided with an exhaust port 41 communicating with the second cavity 30; and

[0036] The air outlet elbow 5 has one end passing through the cover plate 4 and connected to the second pipe 32 , and the orthographic projection of the air outlet elbow 5 toward the cover plate 4 covers the exhaust port 41 .

[0037] In the embodiment of the utility model, an inhalation valve for a ventilator is provided by setting a mounting seat 3 and a cover plate 4, an exhaust port 41 is opened on the cover plate 4, an exhaust elbow 5 passes through the cover plate 4 and is connected to the mounting seat 3, and the pressure relief port 21 on the valve seat 2 is connected to the exhaust port 41 on the cover plate 4 through the first cavity 10 and the second cavity 30 in sequence. In this way, it is not necessary to separately open a hole structure at the position corresponding to the exhaust port 41 on the side of the housing of the ventilator using the inhalation valve, and the hole structure corresponding to the exhaust elbow 5 of the housing of the ventilator can be fully utilized, which can simplify the structural design of the housing of the ventilator, simplify the mold structure, reduce the mold cost and processing difficulty, and thus reduce the production cost; moreover, the orthographic projection of the exhaust elbow 5 in the direction of the cover plate 4 covers the exhaust port 41, wherein the orthographic projection of the exhaust elbow 5 in the direction of the cover plate 4 is the exhaust port 41 along the exhaust elbow 5. Figure 6 In the projection in the middle X direction, since the orthographic projection of the air outlet elbow 5 toward the cover plate 4 covers the exhaust port 41, when looking directly at the air outlet elbow 5, the air outlet elbow 5 can block the exhaust port 41, thereby hiding the exhaust port 41 and improving the aesthetic appearance of the entire ventilator.

[0038] In the embodiment of the utility model, the air inlet 20 on the valve seat 2 is used to connect with the air inlet pipeline of the ventilator. After the air in the air inlet pipeline enters from the air inlet 20, it is discharged through the main air channel 22, the first pipeline 13, the second pipeline 32, and the air outlet elbow 5 in sequence for the user to inhale air.

[0039] As an embodiment of the utility model, the base 1 includes a flushing pipe 12 provided on the base body 11 and connected to the first pipe 13, and a cleaning liquid can be introduced from the flushing pipe 12 to facilitate flushing the pipeline of the suction valve. As an embodiment of the utility model, the base 1 is an integrated structure, that is, the base body 11, the flushing pipe 12 and the first pipe 13 are integrally formed, which is convenient for the processing of the base 1. Among them, the flushing pipe 12 passes through the side wall of the base body 11 and is connected to the first pipe 13, and the flushing pipe 12 and the first pipe 13 are arranged vertically.

[0040] As an embodiment of the present invention, the first cavity 10 is disposed inside the base body 11 along the axial direction of the base body 11 , and the first cavity 10 is used to achieve communication between the pressure relief port 21 and the second cavity 30 .

[0041] As an embodiment of the utility model, the base 1 is provided with a first connecting plate 15 located in the first cavity 10 . The first connecting plate 15 is penetrated by a first connecting hole 151 . The first pipe 13 passes through the first connecting plate 15 and is fixed on the first connecting plate 15 .

[0042] In this embodiment, the first connecting plate 15 is provided in the first cavity 10 to facilitate the fixing of the first pipe 13. The first connecting plate 15 divides the first cavity 10 into two halves, a left halves and a right halves. The first connecting plate 15 is provided with a first connecting hole 151 to achieve the connection between the left halves and the right halves of the first cavity 10. The first connecting plate 15 is integrally formed with the base body 11.

[0043] As an embodiment of the present invention, there are multiple first communication holes 151, which are arranged in an array around the central axis of the first connecting plate 15. The multiple first communication holes 151 connect the pressure relief port 21 and the second cavity 30, which is more conducive to smooth pressure relief and exhaust.

[0044] In the embodiment of the utility model, the pressure relief port 21 on the valve seat 2 is connected with the safety valve channel 23 on the valve seat 2. When the pressure of the air intake pipeline is greater than the preset pressure relief value, the safety valve in the safety valve channel 23 opens to relieve pressure. At this time, the main air channel 22 is connected with the safety valve channel 23, and part of the gas in the main air channel 22 is discharged from the safety valve channel 23 to the pressure relief port 21. The gas is then discharged to the outside from the pressure relief port 21, the first cavity 10, the second cavity 30, and the exhaust port 41 in turn to ensure that the air pressure coming out of the air outlet elbow 5 is lower than the safety threshold to prevent the user from suffering from air pressure injury.

[0045] The specific number of the pressure relief ports 21 may be one, two or more, and may be flexibly set.

[0046] As an embodiment of the present invention, the mounting seat 3 is an integrated structure, that is, the mounting seat body 31 and the second pipe 32 are integrally formed, which is convenient for processing the base 1 .

[0047] As an embodiment of the utility model, the second cavity 30 is arranged inside the mounting seat body 31 along the axial direction of the mounting seat body 31, and the second pipe 32 is arranged inside the second cavity 3 along the axial direction of the mounting seat body 31, and the second cavity 30 is used to realize the connection between the first cavity 10 and the exhaust port 41.

[0048] As an embodiment of the utility model, the mounting base 3 is provided with a second connecting plate 35 located in the second cavity 30 . The second connecting plate 35 is penetrated by a second connecting hole 351 . The second pipe 32 passes through the second connecting plate 35 and is fixed on the second connecting plate 35 .

[0049] In this embodiment, by arranging the second connecting plate 35 in the second cavity 30, the second pipe 32 is easily fixed, the second connecting plate 35 divides the second cavity 30 into two halves, and a second connecting hole 351 is arranged in the second connecting plate 35 to realize the connection between the left and right halves of the second cavity 30. The second connecting plate 35 is integrally formed with the main body of the mounting seat 3.

[0050] As an embodiment of the present invention, there are multiple second communication holes 351, and the multiple second communication holes 351 are arranged around the central axis of the second connecting plate 35. The multiple second communication holes 351 connect the first cavity 10 and the second cavity 30, which is more conducive to smooth pressure relief and exhaust.

[0051] As a preferred embodiment of the present invention, both the first connecting hole 151 and the second connecting hole 351 are multiple and distributed in a circular array, which is more conducive to smooth pressure relief and exhaust.

[0052] As an embodiment of the utility model, the air outlet elbow 5 is connected to the cover plate 4 to form an integrated structure. The air outlet elbow 5 and the cover plate 4 can be integrally formed or connected to form an integrated structure by gluing or fasteners.

[0053] In this embodiment, when one end of the air outlet elbow 5 passes through the cover plate 4 and is connected to the second pipe 32, the cover plate 4 can simultaneously cover the second cavity 30, which facilitates the synchronous installation of the air outlet elbow 5 and the cover plate 4.

[0054] As a preferred embodiment of the utility model, the exhaust port 41 is an arc-shaped hole, which is easy to process and can accelerate the discharge of the depressurized gas. Of course, the exhaust port 41 can also be a through hole of other shapes, and the specific shape of the exhaust port 41 can be flexibly set.

[0055] As an embodiment of the utility model, the outlet elbow 5 is specifically L-shaped, C-shaped or U-shaped, and the specific shape can be flexibly set. Among them, one end of the outlet elbow 5 is plugged with the second pipeline 32, and the other end is connected to the outside.

[0056] In the embodiment of the utility model, the outer diameter of the air outlet elbow 5 is greater than the width of the exhaust port 41, so that the orthographic projection of the air outlet elbow 5 in the direction of the cover plate 4 can completely cover the exhaust port 41. When viewed from the front, the air outlet elbow 5 can completely block the exhaust port 41, thereby hiding the exhaust port 41 and improving the appearance of the entire ventilator. In the actual production process, the outer diameter of the air outlet elbow 5 can also be equal to the width of the exhaust port 41 or slightly smaller than the width of the exhaust port 41.

[0057] As an embodiment of the present utility model, the mounting seat 3 is snap-connected to the base 1, which facilitates the assembly of the mounting seat 3 and the base 1 and the disassembly and replacement of the air intake valve.

[0058] As an embodiment of the utility model, a clamping ring 16 is provided at one end of the base body 11, and a plurality of slots 161 distributed in a circular array are provided on the clamping ring 16. The mounting seat body 31 is provided with a plurality of buckles 34 that cooperate with the plurality of slots 161. One end of the mounting seat body 31 passes through the clamping ring 16 and is plugged into the base body 11, and each buckle 34 is snapped into the corresponding slot 161.

[0059] In this embodiment, one end of the mounting seat body 31 passes through the snap ring 16 and is plugged into the base body 11, and the mounting seat body 31 is rotated so that the multiple buckles 34 form a buckle connection with the multiple slots 161, thereby realizing the buckle connection between the mounting seat body 31 and the base body 11. The specific number of buckles 34 and slots 161 is not limited and can be flexibly set as needed.

[0060] As an embodiment of the present invention, the mounting seat 3 also includes a plurality of anti-skid grooves 36 arranged around the outer circumference of the mounting seat body 31. The anti-skid grooves 36 can play an anti-skid role and facilitate the rotation operation of the mounting seat 3 so as to rotationally fix the mounting seat 3 and the base 1.

[0061] The embodiment of the utility model also provides a ventilator, including the inhalation valve for ventilator of the above embodiment. The ventilator provided by the embodiment of the utility model is provided with the inhalation valve for ventilator of the above embodiment, so that the side of the shell of the ventilator does not need to separately open a hole structure at the position corresponding to the exhaust port 41, and the hole structure corresponding to the exhaust elbow 5 can be fully used, which can simplify the structural design of the ventilator shell, simplify the mold structure of the ventilator shell, reduce the mold cost and processing difficulty, and thus reduce the production cost of the ventilator; moreover, when the ventilator is viewed straight on, the exhaust elbow 5 can cover the exhaust port 41, so that the exhaust port 41 is hidden, which improves the aesthetics of the overall appearance of the ventilator.

[0062] The embodiment of the utility model provides an inhalation valve for a ventilator, which is provided with a mounting seat 3 and a cover plate 4, an exhaust port 41 is opened on the cover plate 4, and an air outlet elbow 5 passes through the cover plate 4 and is connected to the mounting seat 3, and the pressure relief port 21 on the valve seat 2 is connected with the exhaust port 41 on the cover plate 4 through the first cavity 10 and the second cavity 30 in sequence. In this way, there is no need to separately open a hole structure on the side of the shell of the ventilator using the inhalation valve at the position corresponding to the exhaust port 41, and the hole structure corresponding to the original air outlet elbow 5 can be fully utilized, which can simplify the structural design of the ventilator shell, simplify the mold structure, reduce the mold cost and processing difficulty, and thus reduce the production cost; moreover, by setting the exhaust port 41 to be covered by the orthographic projection of the air outlet elbow 5 in the direction of the cover plate 4, the air outlet elbow 5 can block the exhaust port 41 when viewed straight on, so that the exhaust port 41 is hidden, thereby improving the aesthetic appearance of the entire ventilator.

[0063] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An inhalation valve for a ventilator, characterized in that: include: A valve seat, wherein the valve seat is provided with an air inlet, a main air passage communicating with the air inlet, a safety valve passage communicating with the main air passage and used for installing a safety valve, and a pressure relief port communicating with the safety valve passage; A base connected to the valve seat, comprising a base body with a first cavity therein, and a first pipe disposed in the first cavity, the first cavity being communicated with the pressure relief port, and the first pipe being connected with the main airway; A mounting seat connected to the base, comprising a mounting seat body provided with a second cavity therein, a second pipe provided in the second cavity and connected to the first pipe, wherein the second cavity is in communication with the first cavity; A cover plate for covering the second cavity, wherein the cover plate is provided with an exhaust port communicating with the second cavity; and An air outlet elbow, one end of which passes through the cover plate and is connected to the second pipe, and the orthographic projection of the air outlet elbow toward the cover plate covers the exhaust port.

2. The inhalation valve for a ventilator according to claim 1, characterized in that: The base is provided with a first connecting plate located in the first cavity, the first connecting plate is penetrated by a first communicating hole, and the first pipe passes through and is fixed on the first connecting plate.

3. The inhalation valve for a ventilator according to claim 2, characterized in that: A second connecting plate located in the second cavity is provided in the mounting seat, a second connecting plate is penetrated by a second communicating hole, and the second pipe passes through and is fixed on the second connecting plate.

4. The inhalation valve for a ventilator according to claim 3, characterized in that: The first connecting holes and the second connecting holes are both multiple and distributed in a ring array.

5. The inhalation valve for a ventilator according to claim 1, characterized in that: The air outlet elbow is connected to the cover plate to form an integrated structure.

6. The inhalation valve for a ventilator according to claim 1, characterized in that: The mounting seat is snap-connected to the base.

7. The inhalation valve for a ventilator according to claim 6, characterized in that: A clamping ring is provided at one end of the base body, and a plurality of slots distributed in a circular array are provided on the clamping ring. The mounting seat body is provided with a plurality of buckles that cooperate with the plurality of slots. One end of the mounting seat body passes through the clamping ring and is plugged into the base body, and each buckle is snapped into the corresponding slot.

8. The inhalation valve for a ventilator according to claim 1, characterized in that: The exhaust port is an arc-shaped hole.

9. The inhalation valve for a ventilator according to claim 1, characterized in that: The mounting seat further includes a plurality of anti-slip grooves arranged around the outer peripheral surface of the mounting seat body.

10. A ventilator, characterized in that: Comprising an inhalation valve for a ventilator as described in any one of claims 1-9.

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