CN211410530U

CN211410530U - Breathing machine and humidifying water tank assembly thereof

Info

Publication number: CN211410530U
Application number: CN201822005782.4U
Authority: CN
Inventors: 李永贵; 余世密; 周才政
Original assignee: Shenzhen City Daya Medical Technology Co ltd
Current assignee: Shenzhen City Daya Medical Technology Co ltd
Priority date: 2018-11-30
Filing date: 2018-11-30
Publication date: 2020-09-04
Anticipated expiration: 2028-11-30

Abstract

The application discloses humidification water tank set spare, this humidification water tank set spare includes: the water tank is provided with an air inlet and an air outlet and is used for humidifying the air flow entering from the air inlet and then discharging the air flow from the air outlet; the anti-backflow pipe is arranged in the water tank, the end part of the first end of the anti-backflow pipe is connected with the water tank, the opening of the first end of the anti-backflow pipe is communicated with the air inlet, the anti-backflow pipe comprises a first pipe section connected with the water tank and a second pipe section connected with the first pipe section, and the inner diameter of the first pipe section is larger than that of the second pipe section. The application also discloses a ventilator. Through the mode, the liquid in the water tank can be prevented from flowing backwards from the air inlet, and the stability of the air flow can be improved.

Description

Breathing machine and humidifying water tank assembly thereof

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a breathing machine and humidification water tank set spare thereof.

Background

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. The breathing machine is a vital medical device which can prevent and treat respiratory failure, reduce complications and save and prolong the life of a patient. Traditional breathing machine humidification water tank does not have the function of carrying out the rectification to the air current, and the air current is unstable, and the noise is big, and user experience is relatively poor.

SUMMERY OF THE UTILITY MODEL

The main technical problem who solves of this application provides a breathing machine and humidification water tank set spare thereof, can prevent that the liquid in the water tank from flowing backward from the air inlet, and can improve the stability of air current.

In order to solve the above technical problem, one technical solution adopted in the embodiments of the present application is: there is provided a humidification water tank assembly comprising: the water tank is provided with an air inlet and an air outlet and is used for humidifying the air flow entering from the air inlet and then discharging the air flow from the air outlet; the anti-backflow pipe is arranged in the water tank, the end part of the first end of the anti-backflow pipe is connected with the water tank, the opening of the first end of the anti-backflow pipe is communicated with the air inlet, the anti-backflow pipe comprises a first pipe section connected with the water tank and a second pipe section connected with the first pipe section, and the inner diameter of the first pipe section is larger than that of the second pipe section.

Wherein the axes of the first and second tube segments are not coincident.

Wherein at least part of the outer circumferential surfaces of the first and second pipe sections are flush with each other.

The volume of the space surrounded by the first pipe section is larger than that of the space surrounded by the second pipe section.

Wherein, the internal diameter of the first end opening of the backflow preventing pipe is larger than that of the air inlet, and the backflow preventing pipe is connected with the inner wall of the water tank around the air inlet.

Wherein, the diapire of water tank includes heat transfer portion and load-bearing part, and the middle zone of load-bearing part is provided with the opening, and heat transfer portion and load-bearing part fixed connection just cover the opening on the load-bearing part.

Wherein, be provided with the sealing washer between bearing part and the heat transfer portion, the sealing washer sets up between heat transfer portion and bearing part for seal heat transfer portion and the clearance between the bearing part.

Wherein, the air inlet sets up on the lateral wall of water tank, and the gas outlet sets up on the roof of water tank.

Wherein the air inlet is close to the top wall and is far away from the bottom wall.

In order to solve the above technical problem, another technical solution adopted in the embodiment of the present application is: the utility model provides a respirator, respirator include fan subassembly and the humidification water tank set spare that communicates with the fan subassembly at least, and the fan subassembly is used for producing the air current, and humidification water tank set spare is used for humidifying the air current.

This application embodiment includes through setting up humidification water tank set spare: the water tank is provided with an air inlet and an air outlet and is used for humidifying the air flow entering from the air inlet and then discharging the air flow from the air outlet; the anti-backflow pipe is arranged in the water tank, the end part of the first end of the anti-backflow pipe is connected with the water tank, the opening of the first end of the anti-backflow pipe is communicated with the air inlet, the anti-backflow pipe comprises a first pipe section connected with the water tank and a second pipe section connected with the first pipe section, and the inner diameter of the first pipe section is larger than that of the second pipe section. Because the internal diameter of first pipe section is greater than the internal diameter of second pipe section, form the great cavity in other positions relatively at the root of preventing flowing backward the pipe to in the casing carries out the rectification to the air current that gets into from the air inlet and then discharges into the water tank, on the other hand can prevent that the water in the water tank from flowing backward from the air inlet.

Drawings

FIG. 1 is an exploded view of a humidifying water tank assembly according to an embodiment of the present application;

FIG. 2 is a schematic view of the internal structure of the water tank in the embodiment of the present application;

FIG. 3 is a schematic view of an assembly structure of a humidifying water tank assembly according to an embodiment of the present application;

FIG. 4 is a schematic diagram illustrating a position relationship between a vertical projection of a first end opening and a second pipe section of the backflow prevention pipe on a side wall of the water tank and the air inlet according to the embodiment of the present application;

fig. 5 is a schematic diagram of a ventilator according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "first", "second", etc. in this application are used to distinguish between different objects and not to describe a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Referring to fig. 1 to fig. 3, fig. 1 is an exploded schematic view of a humidifying water tank assembly according to an embodiment of the present application; FIG. 2 is a schematic view of the internal structure of the water tank in the embodiment of the present application; fig. 3 is an assembly structure diagram of a humidifying water tank assembly according to an embodiment of the present application.

In the present embodiment, the humidifying water tank assembly includes a water tank 10 and a backflow preventing pipe 20.

The water tank 10 is provided with an air inlet a and an air outlet b, and is used for humidifying the air flow entering from the air inlet a and then discharging the air flow from the air outlet b.

Alternatively, the vertical distance of the air outlet b from the bottom of the water tank 10 is greater than the vertical distance of the air inlet a from the bottom of the water tank 10. In other words, the air outlet b is located above the air inlet a.

The tank 10 includes a bottom wall 11, side walls 12 and a top wall 13. The air inlet a is provided on a side wall 12 of the water tank 10, and the air outlet b is provided on a top wall 13 of the water tank 10. The bottom of the tank 10 described above may refer to the bottom wall 11 of the tank 10.

In such a way, the gas outlet b is arranged above the gas inlet a, so that the gas can be conveniently discharged.

Optionally, the top wall 13 of the water tank 10 is detachably connected, for example, snapped connected, to the box enclosed by the side wall 12 and the bottom wall 11 of the water tank 10. Cleaning of the interior of the tank 10 is facilitated by the removable attachment of the top wall 13 to the housing.

Alternatively, the air inlet a is disposed close to the top wall 13 and far from the bottom wall 11. The inlet opening a is closer to the top wall 13. In other words, the vertical distance of the air inlet a from the top wall 13 of the water tank 10 is smaller than the vertical distance of the air inlet a from the bottom wall 11 of the water tank 10, so that the liquid in the water tank 10 can be better prevented from flowing backward from the air inlet a.

The bottom wall 11 of the water tank 10 includes a heat transfer portion 112 and a bearing portion 111, an opening is provided in a middle region of the bearing portion 111, and the heat transfer portion 112 is fixedly connected with the bearing portion 111 and covers the opening on the bearing portion 111.

A seal ring 113 is provided between the support portion 111 and the heat transfer portion 112, and the seal ring 113 is provided between the heat transfer portion 112 and the support portion 111 for sealing a gap between the heat transfer portion 112 and the support portion 111.

The heat transfer portion 111 is used to heat the liquid in the water tank 10 by contacting an external heating element to humidify the air flow entering through the air inlet a.

The backflow preventing pipe 20 is disposed in the water tank 10, an end portion of a first end of the backflow preventing pipe 20 is connected to the water tank 10, an opening 201 of the first end of the backflow preventing pipe 20 is communicated with the air inlet a, the backflow preventing pipe 20 includes a first pipe section 21 connected to the water tank 10 and a second pipe section 22 connected to the first pipe section 21, and an inner diameter of the first pipe section 21 is larger than an inner diameter of the second pipe section 22.

Through the above manner, the pipe section of the anti-backflow pipe 20 close to the side wall of the water tank 10 is set to be relatively large, so that a large cavity (a cavity surrounded by the first pipe section 21) is formed at the root part of the anti-backflow pipe, on one hand, even if liquid in the water tank 10 flows into the anti-backflow pipe 20, the cavity at the root part of the anti-backflow pipe can also have a certain buffering effect, and the liquid cannot directly flow backwards from the air inlet a; on the other hand, the chamber has a certain buffering function on the air flow entering from the air inlet a, and can rectify the air flow entering from the air inlet a and then discharge the air flow into the water tank 10 through the opening 202 of the second end of the backflow preventing pipe 20.

Optionally, the axes L1 and L2 of the first and

second tube segments

21 and 22 do not coincide. In other words, the axis L1 of the first tube segment 21 and the axis of the second tube segment L2 are not collinear. Thereby achieving an eccentric design of the first tube section 21 and the second tube section 22. Further, the axis L1 of the first pipe segment 21 and the axis of the air inlet a are not on the same straight line, so that the air inlet a is not aligned with the opening direction of the second pipe segment 22, and the air flow entering from the air inlet a does not directly enter the second pipe segment 22, but bypasses the cavity of the root and then enters the second pipe segment 22, thereby achieving the rectification effect.

Optionally, at least part of the outer circumferential surfaces of the first and

second pipe sections

21, 22 are flush with each other. By the mode, the anti-backflow pipe 20 can be integrally formed, the anti-backflow pipe can be manufactured conveniently, the distance of the axis L2 of the second pipe section 22 deviating from the first pipe section L1 can be maximized, and the rectification effect is improved.

Optionally, the volume of the space enclosed by the first tube section 21 is larger than the volume of the space enclosed by the second tube section 22. Through this kind of mode, can make the circuitous space of air current in the cavity of preventing flowing backward the pipe root more greatly further promote the effect of rectification, on the other hand, even in liquid in water tank 10 flows backward to the cavity in, because the space in the cavity is great, has bigger buffer space, can strengthen the effect of preventing flowing backward.

Referring to fig. 4 in combination with fig. 1-3, fig. 4 is a schematic diagram illustrating a position relationship between a vertical projection of the first end opening and the second pipe section of the backflow prevention pipe on the sidewall of the water tank and the air inlet according to the embodiment of the present application.

Alternatively, the inner diameter of the opening 201 of the first end of the backflow preventing pipe 20 is greater than that of the air inlet a, and the backflow preventing pipe 20 is connected to the inner wall of the water tank 10 around the air inlet a. The vertical projection y of the first end opening 20 of the backflow preventing pipe 20 on the side wall 12 of the water tank 10 surrounds the vertical projection z of the opening of the second pipe section 22 close to the first pipe section 21 on the side wall 12 of the water tank 10, and surrounds the area of the air inlet a on the side wall 12. The area of the air inlet a and the vertical projection z of the opening of the second pipe section 22 close to the end of the first pipe section 21 on the side wall 12 of the water tank 10 do not overlap.

Referring to fig. 5, fig. 5 is a schematic diagram of a ventilator according to an embodiment of the present application.

The breathing machine of this application embodiment is including fan subassembly 51, radome fairing subassembly 52, the humidification water tank set spare 53 that communicate in proper order, and fan subassembly 51 is used for producing the air current, and radome fairing subassembly 52 is used for rectifying the air current that fan subassembly 51 produced, and humidification water tank set spare 53 is used for humidifying the air current. The humidifying water tank assembly 53 may be the humidifying water tank assembly in any of the embodiments described above.

The above embodiments are merely examples and are not intended to limit the scope of the present disclosure, and all modifications, equivalents, and flow charts using the contents of the specification and drawings of the present disclosure or those directly or indirectly applied to other related technical fields are intended to be included in the scope of the present disclosure.

Claims

1. A humidification water tank assembly, characterized in that said humidification water tank assembly comprises:

the water tank is provided with an air inlet and an air outlet and is used for humidifying the airflow entering from the air inlet and then discharging the airflow from the air outlet;

the anti-backflow pipe is arranged in the water tank, the end part of the first end of the anti-backflow pipe is connected with the water tank, the opening of the first end of the anti-backflow pipe is communicated with the air inlet, the anti-backflow pipe comprises a first pipe section connected with the water tank and a second pipe section connected with the first pipe section, and the inner diameter of the first pipe section is larger than that of the second pipe section.

2. The humidifying water tank assembly of claim 1, wherein the axes of the first and second pipe segments are non-coincident.

3. The humidifying water tank assembly of claim 2, wherein at least portions of the outer peripheral surfaces of the first and second pipe sections are flush with each other.

4. The humidifying water tank assembly as defined in claim 1, wherein a volume of a space enclosed by the first pipe section is greater than a volume of a space enclosed by the second pipe section.

5. The humidifying tank assembly of claim 1, wherein an inner diameter of the first end opening of the backflow prevention pipe is larger than an inner diameter of the air inlet, and the backflow prevention pipe is connected to an inner wall of the tank around the air inlet.

6. The humidifying water tank assembly as defined in claim 1, wherein the bottom wall of the water tank comprises a heat transfer portion and a carrying portion, an intermediate region of the carrying portion is provided with an opening, and the heat transfer portion is fixedly connected with the carrying portion and covers the opening on the carrying portion.

7. The humidifying water tank assembly as claimed in claim 6, wherein a sealing ring is provided between the heat transfer portion and the bearing portion for sealing a gap between the heat transfer portion and the bearing portion.

8. The humidifying water tank assembly of claim 1, wherein the air inlet is disposed on a side wall of the water tank and the air outlet is disposed on a top wall of the water tank.

9. The humidifying water tank assembly of claim 1, wherein the air inlet is disposed proximate to a top wall of the water tank and distal to a bottom wall of the water tank.

10. A respirator, comprising at least a blower assembly and a humidification water tank assembly in communication with the blower assembly, the blower assembly being adapted to generate an air flow, the humidification water tank assembly being adapted to humidify the air flow, the humidification water tank assembly being as claimed in any one of claims 1 to 9.