CN215780695U

CN215780695U - Breathing machine and water tank thereof

Info

Publication number: CN215780695U
Application number: CN202121557625.XU
Authority: CN
Inventors: 李海华
Original assignee: Kefu Medical Technology Co ltd
Current assignee: Kefu Medical Technology Co ltd
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2022-02-11
Anticipated expiration: 2031-07-09

Abstract

The utility model provides a breathing machine and water tank thereof, the water tank includes upper cover and bottom, upper cover and bottom enclose into a cavity, the upper cover is last to have seted up first air inlet, including a stock solution chamber and an air inlet chamber in the cavity, the cavity that the air inlet chamber is formed by the separation of upper cover portion inner wall surface by first baffle, second baffle that set up in the water tank cavity, first air inlet communicates with each other with this air inlet chamber, and second baffle is located stock solution chamber top, has seted up first gas outlet on it, and first gas outlet communicates with each other with the stock solution chamber. Gas that gets into through first air inlet cushions the back at the above-mentioned intracavity that admits air, gets into the stock solution intracavity by first gas outlet again, and the volume in chamber of admitting air has simultaneously reduced the space that the internal heating gas flows in the water tank to easily cause the indiscriminate stream of internal heating gas and be obstructed after having avoided gas to get into the water tank, lead to the unable smooth and easy outflow of following the outlet duct of gas in the water tank, cause the great problem of air inlet and gas outlet pressure difference.

Description

Breathing machine and water tank thereof

Technical Field

The utility model relates to the field of respiratory therapy equipment, in particular to a water tank for a breathing machine and the breathing machine with the water tank.

Background

The respirator is a device which can replace/control or change the normal physiological respiration of a person, increase the ventilation capacity of the lung, improve the respiratory function, reduce the consumption of the respiratory function and save the heart reserve capacity. In modern clinical medicine, a ventilator has been widely used in respiratory failure due to various reasons, anesthesia and breathing management during major surgery, respiratory support therapy and emergency resuscitation as an effective means for manually replacing the function of spontaneous ventilation, and has a very important position in the modern medical field.

In order to reduce the stimulation of cold dry air to respiratory tract mucous membrane, most of the breathing machines are provided with a humidifying water tank, and the humidifying water tank heats water to generate steam so as to warm and moisten the air inhaled into the body of a user. However, the water tank upper cover of current breathing machine includes an intake pipe and an outlet duct usually, the intake pipe is a straight tube usually, the straight tube occupies the space less, it is great to lead to the inside heating gas flow space surplus except that the stock solution chamber, the gas that gets into by the intake pipe does not have sufficient space to cushion simultaneously, the two leads to the gas that directly gets into in the water tank to easily cause inside heating gas to flow indiscriminately and be obstructed, make the unable smooth and easy outflow from the outlet duct of heating gas in the water tank, this kind of structure has caused water tank air inlet and gas outlet pressure difference great, make man-machine demonstration synchronism poor. In addition, if the gas pressure of the outlet gas of the outlet pipe is to be increased, the rotation speed of the turbine must be increased, so that the noise of the respirator is increased, and the service life of the turbine is shortened.

Therefore, it is necessary to provide a ventilator and a water tank thereof to solve the problem in the prior art that the gas entering from the gas inlet pipe has no space for buffering, and the heated gas in the water tank has a large flowing space, which is likely to cause a large pressure difference between the gas inlet and the gas outlet of the water tank.

SUMMERY OF THE UTILITY MODEL

Based on the above, the utility model provides a breathing machine and a water tank thereof, which are used for solving the problems that in the prior art, gas entering from an air inlet pipe is not buffered in a space, and the flow space of heated gas in the water tank is larger, so that the pressure difference between an air inlet and an air outlet of the water tank is larger.

The technical scheme adopted by the utility model is as follows:

the water tank of the breathing machine comprises an upper cover and a bottom cover, wherein the upper cover and the bottom cover form a cavity, the upper cover is provided with a first air inlet, and the water tank is characterized in that the cavity comprises a liquid storage cavity and an air inlet cavity, the air inlet cavity is formed by surrounding a first baffle plate, a second baffle plate and the inner wall surface of the upper cover part, the first baffle plate, the second baffle plate and the inner wall surface of the upper cover part are arranged in the cavity, the first air inlet is communicated with the air inlet cavity, the second baffle plate is provided with a first air outlet, and the first air outlet is communicated with the liquid storage cavity.

Preferably, the upper cover is further provided with a second air outlet and an air outlet pipe, one end of the air outlet pipe is connected with the second air outlet, the other end of the air outlet pipe is a second air inlet, and the second air inlet is communicated with the liquid storage cavity.

Preferably, the second baffle is located above the reservoir cavity.

Preferably, the first baffle is vertically arranged in the upper cover, the second baffle covers the first baffle, the first baffle is mutually attached to at least one side edge of the second baffle, and the other side edges of the first baffle and the second baffle are mutually attached to the inner wall surface of the upper cover.

Preferably, the side edges of the joint of the first baffle plate and the second baffle plate are perpendicular to each other.

Preferably, the first baffle, the second baffle and the joint of part of the inner wall surface of the upper cover are connected in a sealing mode through ultrasonic waves or glue.

Preferably, the first inlet diameter is 22 mm.

Preferably, the outlet duct is arranged on one side of the first baffle, the liquid storage cavity is positioned in the bottom cover, and the position of the first air outlet relative to the second air inlet is closer to the liquid storage cavity.

Preferably, a sealing member is disposed between the upper cover and the lower cover.

The utility model also provides a breathing machine, which comprises any one of the water tanks, and a heating device is arranged at the bottom of the water tank.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model relates to a respirator and a water tank thereof.A first baffle plate, a second baffle plate and an upper cover part are arranged in a cavity of the water tank through an air inlet cavity to form a cavity, the first baffle plate and the second baffle plate are separated from the inner wall surface of the upper cover part to form the cavity, a first air inlet is communicated with the air inlet cavity, the second baffle plate is positioned above a liquid storage cavity and is provided with a first air outlet, and the first air outlet is communicated with the liquid storage cavity. Gas that gets into through first air inlet cushions the back at the above-mentioned intracavity that admits air, gets into the stock solution intracavity by first gas outlet again, and the volume in chamber of admitting air has simultaneously reduced the space that the internal heating gas flows in the water tank to easily cause the indiscriminate stream of internal heating gas and be obstructed after having avoided gas to get into the water tank, lead to the unable smooth and easy outflow of following the outlet duct of the internal heating gas of water tank, cause the great problem of water tank air inlet and gas outlet pressure difference.

Drawings

The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular description of preferred embodiments of the utility model, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intended to be drawn to scale in actual dimensions, emphasis instead being placed upon illustrating the principles of the utility model.

FIG. 1 is a schematic perspective view of a water tank of the present invention;

FIG. 2 is an exploded perspective view of the water tank of the present invention;

FIG. 3 is a bottom view of the upper cover;

fig. 4 is an exploded perspective view of the upper cover.

Description of reference numerals: 10. a water tank; 1. an upper cover; 11. an air inlet cavity; 111. a first air inlet; 112. a first air outlet; 1121. a convex edge; 12. an air outlet pipe; 121. a second air inlet; 122. a second air outlet; 13. a first baffle plate; 14. a second baffle; 2. a bottom cover; 21. a liquid storage cavity; 3. and a seal.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element and be integral therewith, or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like are used herein for illustrative purposes only. The terms "upper", "lower", "horizontal", "vertical", and the like indicate orientations or positional relationships based on directions or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have the specified orientations, be constructed and operated in the specific orientations, and thus, should not be construed as limiting the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Fig. 1 is a schematic perspective view of a water tank 10 of a respirator according to an embodiment of the present invention. The utility model also provides a breathing machine, which comprises the water tank 10, wherein a heating device is arranged at the bottom of the water tank 10.

Referring to fig. 1 to 4, the water tank 10 includes an upper cover 1 and a bottom cover 2, the upper cover 1 and the bottom cover 2 define a cavity, and the cavity includes a liquid storage chamber 21 and an air inlet chamber 11. The reservoir chamber 21 and the intake chamber 11 communicate with each other through necessary intake and exhaust ports. In addition, the chambers maintain respective airtightness.

The upper cover 1 and the bottom cover 2 are detachably connected, so that a sealing member 3 is disposed at a joint between the upper cover 1 and the bottom cover 2 to seal a gap between the upper cover 1 and the bottom cover 2, so that water in the water tank 10 cannot flow out from the gap between the upper cover 1 and the bottom cover 2. Alternatively, the sealing member 3 may be provided on either or both of the upper cover 1 and the lower cover 2. The reservoir chamber 21 is located in the bottom cover 2, and when the upper cover 1 is opened, the reservoir chamber 21 is opened to allow the liquid to be injected therein. Preferably, the sealing member 3 is a sealing ring, but not limited thereto.

Referring to fig. 1 and 2, a first air inlet 111 and a second air outlet 122 may be formed on the outer side of the upper cover 1, and the first air inlet 111 and the second air outlet 122 are located on the same plane side of the upper cover 1. Preferably, first air inlet 111 is located closer to reservoir 21 than second air outlet 122.

Referring to fig. 3 and 4, an air outlet tube 12 is further disposed in the upper cover 1, one end of the air outlet tube 12 is connected to the second air outlet 122, and the other end of the air outlet tube 12 opposite to the one end is a second air inlet 121. The second gas inlet 121 is located above the reservoir 21 and communicates with the reservoir 21. When the upper cover is covered on the bottom cover, the outlet pipe 12 is inclined upward from the second inlet 121 to the second outlet 122. Because the gas in the water tank 10 is heated by the liquid storage cavity 21, the volume expansion of the gas is in an ascending state, and the upward inclined state of the gas outlet pipe 12 is favorable for the gas to smoothly enter the second gas inlet 121 of the gas outlet pipe 12 and flow out from the second gas outlet 122 along the upward inclination of the gas outlet pipe 12, so that a large pressure difference is avoided between the gas entering from the first gas inlet 111 and the gas flowing out from the second gas outlet 122.

The air intake chamber 11 may be surrounded by the first baffle 13, the second baffle 14 and a part of the inner wall surface of the upper cover 1 in the hollow spaces of the upper cover 1 and the lower cover 2. This embodiment reduces the interpolation of other subassemblies through utilizing the partial inner wall space of existing upper cover 1 to make the interior design in the water tank compacter, and reach the effect that reduces the interior heated gas flow space of water tank 10, avoid the interior heated gas random flow of water tank 10 and be obstructed. Meanwhile, the first baffle 13 and the second baffle 14 are utilized to completely separate the air inlet cavity 11 from the air outlet pipe 12, so that the air which just enters the water tank 10 is prevented from flowing out of the air outlet pipe 12 at once, and the heating and humidifying effects of the water tank are ensured.

Preferably, the air inlet cavity 11 is disposed in the upper cover 1, the first air inlet 111 is communicated with the air inlet cavity 11, the second baffle 14 is provided with a first air outlet 112, and the first air outlet 112 is disposed at an end far away from the first air inlet 111 and is communicated with the liquid storage cavity 21. Preferably, the first air outlet 112 is located closer to the liquid storage chamber 21 than the second air inlet 121. Optionally, an annular convex edge 1121 may be disposed around the first air outlet 112, and the convex edge 1121 extends toward the liquid storage cavity 21, so that the air entering the water tank can fully contact with the liquid storage cavity, thereby achieving a better heating and humidifying effect.

Preferably, the first baffle 13 is a flat plate vertically disposed in the upper lid 1, preferably near the middle of the upper lid 1, between the first air inlet 111 and the second air outlet 122. The outlet pipe 12 is positioned at one side of the first barrier 13. Part of the side edge of the first baffle 13 extends to the inner wall surface of the upper cover 1 and is in sealing fit with the inner wall surface, so that the first baffle 13, the top of the upper cover 1 and the inner wall surface at the periphery form an irregular groove with an opening facing the liquid storage cavity 21. The second baffle 14 covers the groove, and one side edge of the second baffle 14 is hermetically attached to one horizontal side edge of the first baffle 13 close to the liquid storage cavity 21. Preferably, the second baffle 14 is disposed perpendicular to the first baffle 13. The remaining sides of the second barrier 14 extend to and sealingly engage the peripheral inner wall surface of the upper lid 1. Preferably, second baffle 14 is positioned horizontally above reservoir chamber 21. Thus, the first baffle 13, the second baffle 14 and the inner wall surface of the upper lid 1 enclose a hermetic inlet chamber 11 except for necessary inlet and outlet ports. The space in the chamber 11 that admits air make full use of upper cover 1, it is enough to make the gas that gets into the chamber 11 that admits air from first air inlet 111, it has sufficient space to cushion the back in the space of the chamber 11 that admits air, get into stock solution chamber 21 from first gas outlet 112 again and heat, this chamber 11 volume that admits air has simultaneously reduced the space that the heating gas flows in the water tank 10, thereby it is obstructed easily to cause the indiscriminate flow of inside heating gas behind the gas admission water tank 10, lead to the unable smooth and easy outflow from outlet duct 12 of heating gas in the water tank, cause the great problem of first air inlet 111 and second gas outlet 122 gas pressure difference.

In another embodiment of the present invention, the first baffle 13 may be an L-shaped plate vertically disposed in the upper cover 1 between the first air inlet 111 and the second air outlet 122. The outlet pipe 12 is positioned at one side of the first barrier 13. Part of the side edge of the first baffle 13 extends to the inner wall surface of the upper cover 1 and is in sealing fit with the inner wall surface, so that two planes of the first baffle 13, the top of the upper cover 1 and the inner wall surface at the periphery form an irregular groove with an opening facing the liquid storage cavity 21. The second baffle 14 covers the groove and is in sealing fit with the two L-shaped horizontal side edges of the first baffle 13 facing the liquid storage cavity 21. The remaining sides of the second barrier 14 extend to and sealingly engage the peripheral inner wall surface of the upper lid 1. Thus, the first baffle 13, the second baffle 14 and the inner wall surface of the upper lid 1 enclose a hermetic inlet chamber 11 except for necessary inlet and outlet ports. Preferably, the second baffle 14 is disposed perpendicular to the first baffle 13.

Alternatively, the first baffle 13 and the second baffle 14 may be in other geometric shapes, as long as the first baffle 13, the second baffle 14 and the inner wall surface of the upper cover 1 enclose an air inlet cavity 11, so as to achieve the effect of reducing the space for flowing the heated air in the water tank 10 while the air entering from the first air inlet 111 has enough space for buffering.

Alternatively, the air inlet chamber 11 is formed by integrally forming the first baffle 13, the second baffle 14 and the inner wall surface of the upper cover 1.

In a preferred embodiment of the present invention, the first baffle 13, the second baffle 14 and the inner wall surface of the upper cover 1 are sealingly attached by, but not limited to, ultrasonic sealing or gluing.

In a preferred embodiment of the present invention, the diameter of the first air inlet 111 is preferably 22 mm. The air inlet pipe of the water tank in the prior art is generally selected to be a circular pipeline with the diameter of 18mm, and through the analysis of air flow simulation, when the diameter of the first air inlet 111 is 22mm, the pressure loss of the air is small.

Compared with the prior art, the breathing machine and the water tank thereof have the beneficial effects that:

according to the respirator and the water tank 10 thereof, the air inlet cavity 11 is a cavity formed by separating the first baffle 13 and the second baffle 14 which are arranged in the cavity of the water tank 10 from part of the inner wall surface of the upper cover 1, the first air inlet 111 is communicated with the air inlet cavity 11, the second baffle 14 is positioned above the liquid storage cavity 21 and is provided with the first air outlet 112, and the first air outlet 112 is communicated with the liquid storage cavity 21. Gas that gets into through first air inlet 111 cushions the back in this chamber 11 of admitting air, gets into stock solution chamber 21 by first gas outlet 112 again, and the volume of chamber 11 of admitting air has simultaneously reduced the space that the interior heating gas of water tank flows to easily cause the indiscriminate stream of inside heating gas and be obstructed after having avoided gas entering water tank 10, lead to the unable smooth and easy outflow of following outlet duct 12 of gas in the water tank 10, cause the great problem of air inlet and gas outlet pressure difference.

The above-mentioned embodiments only express the specific embodiments of the utility model, and the description thereof is specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a water tank for breathing machine, its includes upper cover (1) and bottom (2), upper cover (1) and bottom (2) enclose into a cavity, seted up first air inlet (111) on upper cover (1), characterized in that, including a stock solution chamber (21) and an air inlet chamber (11) in the cavity, air inlet chamber (11) are formed by setting up first baffle (13), second baffle (14) and upper cover (1) part inner wall surface in the cavity are around, first air inlet (111) communicate with each other with this air inlet chamber (11), seted up first gas outlet (112) on second baffle (14), first gas outlet (112) communicate with each other with stock solution chamber (21).

2. The water tank as claimed in claim 1, wherein the upper cover (1) is further provided with a second air outlet (122) and an air outlet pipe (12), one end of the air outlet pipe (12) is connected with the second air outlet (122), the other end of the air outlet pipe is provided with a second air inlet (121), and the second air inlet (121) is communicated with the liquid storage cavity (21).

3. A water tank according to claim 1, characterized in that the second baffle (14) is located above the reservoir chamber (21).

4. A water tank as claimed in claim 3, wherein the first baffle (13) is vertically arranged in the upper cover (1), the second baffle (14) covers the first baffle (13), at least one side of the first baffle (13) and at least one side of the second baffle (14) are attached to each other, and the other sides of the first baffle (13) and the second baffle (14) are attached to the inner wall surface of the upper cover (1).

5. A water tank according to claim 4, characterized in that the sides of the first baffle (13) and the second baffle (14) where they meet each other are perpendicular to each other.

6. A water tank as claimed in claim 4, characterized in that the first baffle (13), the second baffle (14) and the upper cover (1) are sealed and connected by ultrasonic waves or glue at the joint of partial inner wall surfaces.

7. A water tank according to claim 1, characterized in that the first air inlet (111) has a diameter of 22 mm.

8. A water tank as claimed in claim 2, wherein the air outlet pipe (12) is arranged at one side of the first baffle (13), the reservoir chamber (21) is positioned in the bottom cover (2), and the first air outlet (112) is positioned closer to the reservoir chamber (21) than the second air inlet (121).

9. A water tank according to claim 8, characterized in that a sealing (3) is arranged between the upper cover (1) and the bottom cover (2).

10. A respirator, characterized in that it comprises a water tank (10) according to any one of claims 1-9, the bottom of the water tank (10) being provided with heating means.