CN210933314U

CN210933314U - Humidifier water box and breathing machine

Info

Publication number: CN210933314U
Application number: CN201921005852.4U
Authority: CN
Inventors: 余世密; 夏聪
Original assignee: Shenzhen City Daya Medical Technology Co ltd
Current assignee: Shenzhen City Daya Medical Technology Co ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-07-07
Anticipated expiration: 2029-06-28

Abstract

The utility model relates to a breathing machine technical field discloses a humidifier water box and breathing machine, humidifier water box includes the water box body and locates this internal pipe of preventing flowing backward of water box, the water box body have the inner chamber and with the air intake of inner chamber intercommunication, the inner chamber has first inside wall, the air intake is located on the first inside wall, the one end and the first inside wall of preventing flowing backward of pipe are connected, prevent flowing backward intraductally and be equipped with first runner and second runner, the one end and the air intake intercommunication of first runner, the second runner is buckled from the other end of first runner and is extended towards the direction of keeping away from first inside wall. The utility model discloses in prevent flowing backward intraductal second runner from the tip of first runner buckle towards the direction extension of keeping away from first inside wall, prevent flowing backward intraductal runner for buckling the setting, play the effect of rectification to the air current that flows backward in preventing flowing backward to this optimizes the produced noise of the air current of flowing through here.

Description

Humidifier water box and breathing machine

Technical Field

The utility model relates to a breathing machine technical field especially relates to a humidifier water box and breathing machine.

Background

When the respirator is used alone to treat respiratory diseases, the patient feels dry nasal cavity and throat due to the dryness of the output air of the respirator. The humidifier water box arranged in the respirator can effectively increase the humidity of air blown out by the respirator, thereby improving the dryness of the nasal cavity and the throat and preventing the problems.

The humidifier water box is connected with the main machine on the breathing machine, and air is supplied by the centrifugal fan in the main machine, so that the water in the humidifier water box is prevented from flowing back into the centrifugal fan, and the backflow preventing pipe is arranged in the humidifier water box.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a humidifier water box and breathing machine, it aims at solving prior art, prevents flowing backward the pipe and all be the straight tube, does not consider the rectification effect for noise and rectification do not obtain the technical problem who optimizes in this link of humidifier water box.

In order to achieve the above purpose, the utility model provides a scheme is:

the utility model provides a humidifier water box, include the water box body and locate this internal pipe of preventing flowing backward of water box, the water box body have the inner chamber and with the air intake of inner chamber intercommunication, the inner chamber has first inside wall, the air intake is located on the first inside wall, prevent flowing backward the one end of pipe with first inside wall is connected, prevent flowing backward intraductal first runner and the second runner of being equipped with, the one end of first runner with the air intake intercommunication, the second runner is followed the other end of first runner is buckled and is kept away from the direction of first inside wall extends.

As an improvement, an orthographic projection of the second flow passage on the first inner side wall and an orthographic projection of the air inlet on the first inner side wall are not overlapped; and/or the presence of a gas in the atmosphere,

the first flow passage extends from the air inlet to the second flow passage with the trend that the cross-sectional area is gradually reduced.

As a refinement, the first flow passage extends from the intake opening to the second flow passage in a direction parallel to the first inner side wall, and/or,

the second flow channel extends from the first flow channel in a direction perpendicular to the first inner side wall in a direction away from the first inner side wall.

As an improvement, the inner cavity further has a second inner side wall arranged opposite to the first inner side wall at a spacing, and a distance from an end of the second flow passage far away from the first inner side wall to the first inner side wall is greater than or equal to half of a distance between the first inner side wall and the second inner side wall.

As an improvement, the inner chamber still has interval third inside wall and the fourth inside wall that sets up relatively, first inside wall, third inside wall, the second inside wall, the fourth inside wall connects gradually and forms an annular structure, the tip that keeps away from of second runner first inside wall to the distance of third inside wall and to the distance of fourth inside wall equals.

As an improvement, one end of the backflow preventing pipe is connected with the water box body in an ultrasonic welding mode.

As an improvement, the backflow preventing pipe is provided with a matching surface matched with the first inner side wall, one of the first inner side wall and the matching surface is convexly provided with an annular convex rib, and the other one of the first inner side wall and the matching surface is concavely provided with an annular clamping groove matched with the annular convex rib in a clamping mode.

As an improvement, the backflow preventing pipe comprises a cover-shaped part and a tubular part, one side of the cover-shaped part is connected with the first inner side wall, the tubular part extends and protrudes from the side part of the cover-shaped part, which is back to the first inner side wall, in the direction away from the first inner side wall, the first flow channel is a cavity arranged on one side of the cover-shaped part, which faces the first inner side wall, and the second flow channel is a hollow inner hole penetrating through the tubular part.

As a refinement, the tubular portion is a straight tube.

The utility model also provides a breathing machine, a serial communication port, include host computer, fairing and as aforesaid humidifier water box, fairing locates the host computer with between the humidifier water box, just the air intake with the fairing intercommunication.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses in prevent flowing backward intraductal second runner from the tip of first runner buckle towards the direction extension of keeping away from first inside wall, prevent flowing backward intraductal runner for buckling the setting, play the effect of rectification to the air current that flows backward in preventing flowing backward to this optimizes the produced noise of the air current of flowing through here.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic perspective view of a humidifier water box according to an embodiment of the present invention;

fig. 2 is an exploded view of a humidifier water cartridge provided by an embodiment of the present invention;

fig. 3 is a schematic perspective view of a backflow prevention pipe provided in an embodiment of the present invention;

fig. 4 is a schematic perspective view of a bottom case provided in an embodiment of the present invention;

FIG. 5 is a schematic view of an assembly structure of the backflow prevention pipe and the bottom case according to an embodiment of the present invention;

fig. 6 is a right side view of a humidifier water cartridge provided in accordance with an embodiment of the present invention;

FIG. 7 is a cross-sectional view taken at A-A in FIG. 6;

fig. 8 is a schematic view of an assembly structure of the humidifier water box, the rectifying device and the host provided by the embodiment of the invention.

Wherein, 1, a humidifier water box; 10. a water box body; 11. an inner cavity; 12. a bottom case; 121. an air inlet; 122. a first inner side wall; 123. a second inner side wall; 124. a third inner side wall; 125. a fourth inner side wall; 126. a bottom wall body; 127. an annular convex rib; 13. a top cover; 131. an opening; 20. a backflow preventing pipe; 21. a hood-shaped portion; 211. a first flow passage; 212. a mating surface; 213. an annular neck; 22. a tubular portion; 221. a second flow passage; 30. a host; 40. a rectifying device.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

It will also be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 to 8, an embodiment of the present invention provides a humidifier water box 1, the humidifier water box 1 includes a water box body 10 and a backflow preventing pipe 20 disposed in the water box body 10, the water box body 10 has an inner cavity 11 for storing water and an air inlet 121 communicated with the inner cavity 11, the inner cavity 11 has a first inner sidewall 122, a second inner sidewall 123, a third inner sidewall 124, a fourth inner sidewall 125 and a bottom wall 126, wherein the first inner sidewall 122 and the second inner sidewall 123 are oppositely disposed at intervals, the third inner sidewall 124 and the fourth inner sidewall 125 are oppositely disposed at intervals, the first inner sidewall 122, the third inner sidewall 124, the second inner sidewall 123 and the fourth inner sidewall 125 are sequentially connected to form an annular structure, the bottom wall 126 is disposed at the bottom of the annular structure, the air inlet 121 is disposed on the first inner sidewall 122, one end of the backflow preventing pipe 20 is connected to the first inner sidewall 122, the other end of the backflow preventing pipe 20 extends in a direction away from the first inner side wall 122 and is arranged opposite to the second inner side wall 123 at an interval, so that external air flow can enter the water box body 10 from the backflow preventing pipe 20, wherein the air flow is wind conveyed by a host 30 connected with the humidifier water box 1.

Specifically, referring to fig. 4, 6 to 7, a first flow channel 211 and a second flow channel 221 are disposed in the backflow preventing pipe 20, one end of the first flow channel 211 is communicated with the air inlet 121, and the second flow channel 221 is bent from the other end of the first flow channel 211 to extend in a direction away from the first inner sidewall 122. Preferably, the first flow channel 211 extends from the air inlet 121 to the second flow channel 221 along a direction parallel to the first inner side wall 122, the second flow channel 221 extends from the first flow channel 211 towards a direction away from the first inner side wall 122 along a direction perpendicular to the first inner side wall 122, an orthographic projection of the second flow channel 221 on the first inner side wall 122 and an orthographic projection of the air inlet 121 on the first inner side wall 122 do not overlap with each other, the first flow channel 211 and the second flow channel 221 form a 100-degree left-right corner connection, and the flow channel in the entire backflow prevention pipe 20 is bent, so as to perform a rectification function on an airflow flowing through the backflow prevention pipe 20, thereby optimizing noise generated by the airflow flowing through the backflow prevention pipe.

Referring to fig. 3, in the present embodiment, the backflow-preventing pipe 20 is an elbow pipe, the backflow-preventing pipe 20 includes a cover-shaped portion 21 and a tubular portion 22, one side of the cover-shaped portion 21 is connected to the first inner sidewall 122, the tubular portion 22 extends and protrudes from a side portion of the cover-shaped portion 21 opposite to the first inner sidewall 122 in a direction away from the first inner sidewall 122, the first flow channel 211 is a cavity disposed on a side of the cover-shaped portion 21 facing the first inner sidewall 122, the second flow channel 221 is a hollow inner hole disposed through the tubular portion 22, the hollow inner hole is communicated with the cavity, and preferably, the tubular portion 22 is a straight pipe to form an inner flow channel of the backflow-preventing pipe 20 with the cavity.

Preferably, the first flow channel 211 extends from the air inlet 121 to the second flow channel 221 with a gradually decreasing cross-sectional area, the inner cross-section of the first flow channel 211 changes, and the first flow channel 211 and the second flow channel 221 have a large side and a small side, which can perform a rectification function.

Preferably, the distance from the end of the second flow channel 221 far from the first inner side wall 122 to the first inner side wall 122 is greater than or equal to half of the distance between the first inner side wall 122 and the second inner side wall 123, the distance from the end of the second flow channel 221 far from the first inner side wall 122 to the third inner side wall 124 is equal to the distance from the fourth inner side wall 125, and the central axis of the second flow channel 221 is parallel to the bottom wall 126 of the inner cavity 11, so that the water in the inner cavity 11 can be effectively prevented from flowing backwards into the backflow prevention pipe 20.

In this embodiment, one end of the backflow preventing pipe 20 is connected to the water box body 10 by ultrasonic welding, and the ultrasonic welding can play a role in sealing.

Referring to fig. 3 and 4, specifically, the backflow prevention pipe 20 has a matching surface 212 matching with the first inner side wall 122, one of the first inner side wall 122 and the matching surface 212 is convexly provided with an annular convex rib 127, and the other one of the first inner side wall 122 and the matching surface 212 is concavely provided with an annular groove 213 matching with the annular convex rib 127 in a clamping manner, preferably, the first inner side wall 122 is convexly provided with the annular convex rib 127, and the matching surface 212 of the backflow prevention pipe 20 is provided with the annular groove 213 to form a tongue-and-groove structure, which is favorable for ultrasonic sealing. During specific assembly, the annular clamping groove 213 on the backflow preventing pipe 20 is inserted and matched with the annular convex rib 127 on the first inner side wall 122, then ultrasonic welding is adopted at the joint of the backflow preventing pipe 20 and the water box body 10, namely an ultrasonic line is added in the water box body 10 at the position where the backflow preventing pipe 20 is contacted with the backflow preventing pipe 20, ultrasonic sealing is formed, the sealing ring structure is reduced, and therefore the assembly cost and the part cost of the humidifier water box 1 are saved.

Referring to fig. 1 and 2, in the embodiment, the water box body 10 includes a bottom box 12 and a top cover 13, an opening 131 is disposed at a center position of the top cover 13, the top cover 13 is connected to the bottom box 12 and encloses the bottom box 12 to form the inner cavity 11, the air inlet 121 is disposed on the bottom box 12, when specifically installing, the backflow preventing pipe 20 can be installed on the bottom box 12 in an ultrasonic sealing manner, and then the top cover 13 is covered, so that the backflow preventing pipe 20 can perform a rectification function while preventing backflow.

Referring to fig. 1 and 8, an embodiment of the present invention further provides a ventilator, which includes a main unit 30, a rectifying device 40, and the humidifier water box 1 as described above, wherein the rectifying device 40 is disposed between the main unit 30 and the humidifier water box 1, and the air inlet 121 of the humidifier water box 1 is communicated with the rectifying device 40.

Specifically, fairing 40 has the rectification chamber, with the inlet that the rectification chamber communicates and dock with host computer 30 and with the outlet that the inlet 121 docks on fairing chamber intercommunication and the water box body 10 on, the wind that produces in the host computer 30 can further fall the noise earlier when passing through fairing 40, then further fall the noise reduction in preventing flowing backward pipe 20 on humidifier water box 1 to this optimizes the noise of wind in flowing to water box body 10 from host computer 30, and does not influence the inside structure of preventing flowing backward of water box body 10.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. The utility model provides a humidifier water box, its characterized in that includes the water box body and locates this internal pipe of preventing flowing backward of water box, the water box body have the inner chamber and with the air intake of inner chamber intercommunication, the inner chamber has first inside wall, the air intake is located on the first inside wall, prevent flowing backward the one end of pipe with first inside wall is connected, prevent flowing backward intraductally and be equipped with first runner and second runner, the one end of first runner with the air intake intercommunication, the second runner is followed the other end of first runner is buckled and is kept away from the direction of first inside wall extends.

2. The humidifier water cartridge according to claim 1, wherein an orthographic projection of the second flow passage on the first inner side wall and an orthographic projection of the air inlet on the first inner side wall do not overlap with each other; and/or the presence of a gas in the atmosphere,

3. The humidifier water cartridge according to claim 1 or 2, wherein the first flow passage extends from the inlet opening to the second flow passage in a direction parallel to the first inner side wall, and/or,

4. The humidifier water cartridge according to claim 1 or 2, wherein said inner chamber further has a second inner side wall disposed in spaced opposed relation to said first inner side wall, an end of said second flow passage remote from said first inner side wall being spaced from said first inner side wall by a distance greater than or equal to one half of a distance between said first inner side wall and said second inner side wall.

5. The humidifier water box as claimed in claim 4, wherein said inner chamber further comprises a third inner sidewall and a fourth inner sidewall oppositely disposed at an interval, said first inner sidewall, said third inner sidewall, said second inner sidewall and said fourth inner sidewall are sequentially connected to form an annular structure, and a distance from an end of said second flow channel far from said first inner sidewall to said third inner sidewall is equal to a distance from said fourth inner sidewall.

6. The humidifier water box according to claim 1 or 2, wherein one end of the backflow prevention pipe is connected with the water box body through ultrasonic welding.

7. The humidifier water box according to claim 6, wherein the backflow prevention pipe has a fitting surface fitting with the first inner side wall, one of the first inner side wall and the fitting surface is provided with an annular convex rib in a protruding manner, and the other one of the first inner side wall and the fitting surface is provided with an annular clamping groove in a recessed manner to be inserted and fitted with the annular convex rib.

8. The humidifier water box according to claim 1 or 2, wherein the backflow prevention pipe comprises a cover-shaped portion and a tubular portion, one side of the cover-shaped portion is connected with the first inner side wall, the tubular portion extends and protrudes from a side portion of the cover-shaped portion, which is opposite to the first inner side wall, in a direction away from the first inner side wall, the first flow passage is a cavity formed in one side of the cover-shaped portion, which faces the first inner side wall, and the second flow passage is a hollow inner hole formed through the tubular portion.

9. A humidifier water cartridge as claimed in claim 8, wherein said tubular portion is a straight tube.

10. A respirator comprising a main unit, a rectifying device and a humidifier water box as claimed in any one of claims 1 to 9, wherein the rectifying device is arranged between the main unit and the humidifier water box, and the air inlet is communicated with the rectifying device.