CN218923505U

CN218923505U - Breather valve

Info

Publication number: CN218923505U
Application number: CN202221776974.5U
Authority: CN
Inventors: 卢帅; 冷峻
Original assignee: Sanqiyi Oxygen Technology Sichuan Co ltd
Current assignee: Sanqiyi Oxygen Technology Sichuan Co ltd
Priority date: 2022-07-11
Filing date: 2022-07-11
Publication date: 2023-04-28
Anticipated expiration: 2032-07-11

Abstract

The utility model provides a breather valve comprising a decompression section and a pulse section in communication with each other, wherein: the pressure reducing part is used for communicating the high-pressure gas cylinder and performing pressure reduction treatment on the high-pressure oxygen output by the high-pressure gas cylinder; the pulse part is used for communicating the respiratory tract of a user and intermittently supplying oxygen along with the respiration of the user. The utility model has reasonable design and simple structure, can be applied to a high-pressure gas cylinder by arranging the decompression part, has wide application range, can realize oxygen supply when a user inhales and cuts off oxygen supply when the user exhales by matching with the pulse part, and effectively improves the utilization rate of oxygen.

Description

Breather valve

Technical Field

The utility model relates to the technical field of valves, in particular to a breather valve.

Background

At present, a breather valve for a high-pressure oxygen bottle mainly comprises a primary pressure valve and a direct-current breather valve or comprises a secondary pressure valve and a direct-current breather valve, but in practice, the breather valve formed by the mode of adding the direct-current breather valve to the pressure reducing valve is found to continuously give out air, namely, the high-pressure oxygen bottle is supplied with air uninterruptedly no matter the user is in an inhalation state or an exhalation state, so that the utilization rate of oxygen is low.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide a breather valve which has wide application range and can effectively improve the oxygen utilization rate.

The embodiment of the utility model is realized by the following technical scheme:

a breather valve comprising a decompression portion and a pulse portion in communication with each other, wherein: the pressure reducing part is used for communicating the high-pressure gas cylinder and performing pressure reduction treatment on the high-pressure oxygen output by the high-pressure gas cylinder; the pulse part is used for communicating the respiratory tract of a user and intermittently supplying oxygen along with the respiration of the user.

According to a preferred embodiment, the pressure relief portion comprises an upper connection section and a lower connection section connected to each other; the lower end of the lower connecting section is provided with a gas cylinder interface, and a first air passage is arranged in the gas cylinder interface; the upper end of the lower connecting section is provided with a decompression cavity, the decompression cavity is communicated with the first air passage through a second air passage, and the inner diameter of the second air passage is smaller than that of the first air passage; the pressure reducing cavity is internally embedded with a pressure reducing block, and the other end of the pressure reducing block is embedded at the lower end of the upper connecting section; a third air passage is arranged in the pressure reducing block; a fourth air passage is arranged in the upper connecting section, and the fourth air passage is communicated with the decompression cavity through the third air passage; the lower end of the upper connecting section is connected with the upper end of the lower connecting section; the fourth air passage is communicated with the pulse portion.

According to a preferred embodiment, the lower end of the upper connecting section is provided with a clamping groove, and the fourth air passage is distributed at the bottom of the clamping groove; the pressure reducing block is embedded in the clamping groove, the pressure reducing block is in clearance fit with the pressure reducing cavity, a first annular groove is arranged on the peripheral side face of the pressure reducing block, and the first annular groove is distributed in the pressure reducing cavity.

According to a preferred embodiment, a mandrel is embedded in the fourth air passage, and a second annular groove is formed in the peripheral side surface of the mandrel; the mandrel is provided with a fifth air passage along the axial direction of the mandrel.

According to a preferred embodiment, the upper end of the lower connecting section is provided with a connecting cylinder, and the lower end of the upper connecting section is embedded in the connecting cylinder and is in threaded connection with the connecting cylinder; the lateral wall of connecting cylinder runs through and is provided with the discharge opening.

According to a preferred embodiment, the side wall of the lower connecting section is provided with an inflation inlet and a pressure gauge, and the inflation inlet and the pressure gauge are communicated with the first air passage; the side wall of the first air passage is provided with a safety valve interface in a penetrating way.

According to a preferred embodiment, the pulse part comprises a right cover, an air inlet section, an air outlet section and a left cover which are sequentially connected; the air inlet section is internally provided with a first air passage and a second air passage which are communicated with the air inlet, the first air passage is communicated with a main valve air passage arranged in the air outlet section, the air outlet section is provided with an air outlet which is connected with the main valve air passage, the second air passage is communicated with a guide air passage arranged in the air outlet section, a valve clack, a valve plate and a breathing membrane are sequentially arranged in a cavity formed between the air outlet section and a left cover from right to left, the main valve air passage is opened or closed in a left-right movable manner, the guide air passage is communicated to the cavity formed between the valve clack and the valve plate, the valve plate is provided with a guide valve port which is communicated with the cavity, the breathing membrane is closed or opened through deformation, the left cover is provided with a breathing air passage which is communicated to the lower part of the breathing membrane, and the breathing air passage and the air outlet are connected to a breathing cover for breathing of a person; the fourth air passage is communicated with the air inlet.

The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:

the utility model has reasonable design and simple structure, can be applied to a high-pressure gas cylinder by arranging the decompression part, has wide application range, can realize oxygen supply when a user inhales and cuts off oxygen supply when the user exhales by matching with the pulse part, and effectively improves the utilization rate of oxygen.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of the present utility model.

Icon: the device comprises a right cover, a 2-air inlet section, a 3-air outlet section, a left cover, a 5-air inlet, a 6-first air passage, a 7-second air passage, a 8-main valve air passage, a 9-air outlet, a 10-pilot air passage, a 11-valve clack, a 12-valve plate, a 13-breathing membrane, a 14-pilot valve port, a 15-breathing air passage, a 16-fifth air passage, a 17-upper connecting section, a 18-clamping groove, a 19-decompression block, a 20-connecting cylinder, a 21-decompression cavity, a 22-inflation inlet, a 23-safety valve interface, a 24-air cylinder interface, a 25-first air passage, a 26-pressure gauge, a 27-relief inlet, a 28-first annular groove, a 29-third air passage, a 30-second annular groove, a 31-mandrel, a 32-second air passage, a 33-fourth air passage and a 34-lower connecting section.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present utility model and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1, a breather valve includes a decompression portion and a pulse portion that are communicated with each other, wherein: the pressure reducing part is used for communicating the high-pressure gas cylinder and performing pressure reduction treatment on the high-pressure oxygen output by the high-pressure gas cylinder; the pulse part is used for communicating the respiratory tract of a user and intermittently supplying oxygen along with the respiration of the user. The decompression part is used for carrying out decompression treatment on the high-pressure oxygen output from the high-pressure gas cylinder and conveying the high-pressure oxygen to the pulse part, so that a valve is closed when a user exhales, and the valve is opened for supplying oxygen when the user inhales, and the utilization rate of the oxygen can be effectively improved.

Specifically, in the present embodiment, the pressure reducing portion includes the upper connecting section 17 and the lower connecting section 34 connected to each other; the lower end of the lower connecting section 34 is provided with a gas cylinder interface 24, and a first air passage 25 is arranged in the gas cylinder interface 24; the upper end of the lower connecting section 34 is provided with a decompression cavity 21, the decompression cavity 21 is communicated with the first air passage 25 through a second air passage 32, and the inner diameter of the second air passage 32 is smaller than that of the first air passage 25; a decompression block 19 is embedded in the decompression cavity 21, and the other end of the decompression block 19 is embedded at the lower end of the upper connecting section 17; a third air passage 29 is provided in the pressure reducing block 19; a fourth air passage 33 is arranged in the upper connecting section 17, and the fourth air passage 33 is communicated with the decompression cavity 21 through a third air passage 29; the lower end of the upper connecting section 17 is connected with the upper end of the lower connecting section 34; the fourth air passage 33 communicates with the pulse portion. When using, the exhalation valve of this application passes through gas cylinder interface 24 and is connected with the high-pressure gas cylinder, and the high-pressure oxygen in the high-pressure gas cylinder passes through first air flue 25 and gets into this exhalation valve, and the back is throttled and decompressed through second air flue 32 for the oxygen pressure that gets into in the decompression chamber 21 drops, forms intermediate gas, and this part intermediate gas passes through third air flue 29, fourth air flue 33 to pulse portion, can make this exhalation valve use on the high-pressure gas cylinder through setting up decompression portion, and the range of application is wide.

Further, a clamping groove 18 is configured at the lower end of the upper connecting section 17, and a fourth air passage 33 is distributed at the bottom of the clamping groove 18; the decompression block 19 is embedded in the clamping groove 18, the decompression block 19 is in clearance fit with the decompression cavity 21, a first annular groove 28 is arranged on the peripheral side face of the decompression block 19, and the first annular groove 28 is distributed in the decompression cavity 21. In use, the first annular groove 28 is internally provided with an annular sealing ring for sealing the gap between the pressure relief block 19 and the pressure relief cavity 21.

In this embodiment, the fourth air passage 33 is embedded with a mandrel 31, and the circumferential side surface of the mandrel 31 is provided with a second annular groove 30; the spindle 31 is provided with a fifth air passage 16 penetrating in its axial direction. In use, the second annular groove 30 is provided with an annular sealing ring embedded therein for sealing against the spindle 31 and the fourth air passage 33. The oxygen pressure can be further adjusted to the fifth air flue 16 of setting, and when using, the mode of accessible change dabber 31 realizes the transformation of fifth air flue 16 diameter to realize the decompression ability adjustment of decompression portion, the practicality is strong.

In order to facilitate the disassembly and assembly of the upper connecting section 17 and the lower connecting section 34, as shown in fig. 1, the upper end of the lower connecting section 34 is provided with a connecting cylinder 20, and the lower end of the upper connecting section 17 is embedded in the connecting cylinder 20 and is in threaded connection with the connecting cylinder 20; the sidewall of the connecting cylinder 20 is provided with a relief opening 27 therethrough.

In this embodiment, the sidewall of the lower connecting section 34 is configured with an inflation inlet 22 and a pressure gauge 26, and the inflation inlet 22 and the pressure gauge 26 are both communicated with the first air passage 25; the side wall of the first air passage 25 is provided with a relief valve interface 23 therethrough. The inflation inlet 22 is used for filling oxygen into the high-pressure gas cylinder, and the pressure gauge 26 is used for measuring the gas pressure in the gas cylinder, so that a user can conveniently grasp the amount of oxygen in the gas cylinder in real time.

As shown in fig. 1, the pulse part comprises a right cover 1, an air inlet section 2, an air outlet section 3 and a left cover 4 which are sequentially connected; the air inlet section 2 is provided with an air inlet 5, oxygen enters the air inlet section 2 from the air inlet 5 and is divided into two paths, a first air path 6 and a second air path 7 which are communicated with the air inlet 5 are arranged in the air inlet section 2, the first air path 6 is communicated with a main valve air path 8 arranged in the air outlet section 3, the main valve air path 8 is communicated with an air outlet chamber arranged in the air outlet section 3, the wall surface of the air outlet chamber is provided with an air outlet 9 for outputting oxygen supply air, the main valve air path 8 is communicated with the air outlet 9 through the air outlet chamber, in the embodiment, the air outlet chamber is arranged on the lower end surface of the air outlet section 3 and is in a blind hole groove shape, the main valve air path 8 is arranged in the middle part of the air outlet chamber and the mouth part of the air outlet chamber is downward, the second air path 7 is communicated with a pilot air path 10 arranged in the air outlet section 3, the valve plate 11 is opposite to the air outlet chamber, the valve plate 11 is vertically movably opened or closes the opening of the main valve air passage 8, the pilot air passage 10 is communicated to the chamber formed between the valve plate 11 and the valve plate 12, the valve plate 12 is provided with a pilot valve port 14 communicated with the chamber, the breathing diaphragm 13 is positioned at the lower part of the pilot valve port 14 and opposite to the pilot valve port 14, the breathing diaphragm 13 is closed or opened by deformation, the left cover 4 is provided with a breathing air passage 15 communicated to the lower part of the breathing diaphragm 13, the breathing air passage 15 and the air outlet 9 are connected to a breathing cover for breathing by a person, and the pressure generated by breathing drives the breathing diaphragm 13 to deform by the breathing air passage 15 to realize closing or opening of the pilot valve port 14. The fourth air passage 33 communicates with the air intake 5. The depressurized oxygen, i.e. the intermediate gas, enters the pulse portion through the fourth gas passage 33 via the gas inlet 5.

When inhaling, the gas in the left space of the breathing membrane 13 is extracted along with inhaling, so that the pressure is reduced, the breathing membrane 13 acts leftwards, the pilot valve port 14 is opened, the oxygen in the cavity between the valve clack 11 and the valve plate 12 leaks out from the pilot valve port 14, the pressure of the cavity between the valve clack 11 and the valve plate 12 is reduced, the valve clack 11 acts leftwards, the main valve air passage 8 is opened, the oxygen enters the air outlet chamber from the main valve air passage 8 and is conveyed to the breathing mask for breathing by people along the air outlet 9, and the oxygen can be reliably conveyed during inhaling; when exhaling, a part of the exhaled gas enters the left side of the breathing membrane 13 along the breathing gas path 15, so that the pressure on the left side of the breathing membrane 13 is increased, the breathing membrane 13 acts to the right to seal the pilot valve port 14, so that oxygen in a cavity between the valve clack 11 and the valve plate 12 cannot be discharged from the pilot valve port 14, the pressure increase of the cavity between the valve clack 11 and the valve plate 12 drives the valve clack 11 to act to the right to seal the main valve gas path 8, the conveying path of the oxygen is effectively blocked, the oxygen cannot be output from the gas outlet 9, and the phenomenon that the oxygen is still conveyed out during exhaling is avoided, so that the waste of the oxygen is effectively reduced. It should be noted that, the pulse portion in this embodiment refers to a respiration pulse valve disclosed in CN208372262U, and the structure and the working principle of the respiration pulse valve are consistent, and are not described herein.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A breather valve, characterized by: comprising a decompression section and a pulse section communicating with each other, wherein:

the pressure reducing part is used for communicating the high-pressure gas cylinder and performing pressure reduction treatment on the high-pressure oxygen output by the high-pressure gas cylinder;

the pulse part is used for communicating the respiratory tract of a user and intermittently supplying oxygen along with the respiration of the user;

the pressure reducing portion includes an upper connecting section (17) and a lower connecting section (34) connected to each other;

the lower end of the lower connecting section (34) is provided with a gas cylinder interface (24), and a first air passage (25) is arranged in the gas cylinder interface (24);

the upper end of the lower connecting section (34) is provided with a decompression cavity (21), the decompression cavity (21) is communicated with the first air passage (25) through a second air passage (32), and the inner diameter of the second air passage (32) is smaller than that of the first air passage (25);

the decompression cavity (21) is internally embedded with a decompression block (19), and the other end of the decompression block (19) is embedded at the lower end of the upper connecting section (17); a third air passage (29) is arranged in the pressure reducing block (19);

a fourth air passage (33) is arranged in the upper connecting section (17), and the fourth air passage (33) is communicated with the decompression cavity (21) through the third air passage (29);

the lower end of the upper connecting section (17) is connected with the upper end of the lower connecting section (34);

the fourth air passage (33) is communicated with the pulse part;

the pulse part comprises a right cover (1), an air inlet section (2), an air outlet section (3) and a left cover (4) which are connected in sequence;

an air inlet (5) is formed in the air inlet section (2), a first air passage (6) and a second air passage (7) which are communicated with the air inlet (5) are formed in the air inlet section (2), the first air passage (6) is communicated with a main valve air passage (8) arranged in the air outlet section (3), an air outlet (9) which is connected with the main valve air passage (8) is formed in the air outlet section (3), the second air passage (7) is communicated with a pilot air passage (10) which is arranged in the air outlet section (3), a valve clack (11), a valve plate (12) and a breathing membrane (13) are sequentially arranged in a cavity formed between the air outlet section (3) and the left cover (4) from right to left, the valve clack (11) is opened or closed in a left-right moving manner, the pilot air passage (10) is communicated to a cavity formed between the valve clack (11) and the valve plate (12), a pilot valve port (14) which is communicated with the cavity is formed in the valve plate (12), the breathing membrane (13) is closed or opened through deformation, a breathing membrane (15) is formed in the left cover (4) and is communicated with the breathing membrane (9);

the fourth air passage (33) is communicated with the air inlet (5).

2. The breather valve of claim 1, wherein: the lower end of the upper connecting section (17) is provided with a clamping groove (18), and the fourth air passage (33) is distributed at the bottom of the clamping groove (18);

the pressure reducing block (19) is embedded in the clamping groove (18), the pressure reducing block (19) is in clearance fit with the pressure reducing cavity (21), a first annular groove (28) is arranged on the peripheral side face of the pressure reducing block (19), and the first annular groove (28) is distributed in the pressure reducing cavity (21).

3. The breather valve of claim 2, wherein: a mandrel (31) is embedded in the fourth air passage (33), and a second annular groove (30) is arranged on the peripheral side surface of the mandrel (31);

the mandrel (31) is provided with a fifth air passage (16) along the axial direction of the mandrel.

4. A breather valve according to claim 3, characterized in that: the upper end of the lower connecting section (34) is provided with a connecting cylinder (20), and the lower end of the upper connecting section (17) is embedded in the connecting cylinder (20) and is in threaded connection with the connecting cylinder;

the side wall of the connecting cylinder (20) is provided with a discharge opening (27) in a penetrating way.

5. The breather valve of claim 4, wherein: the side wall of the lower connecting section (34) is provided with an inflation inlet (22) and a pressure gauge (26), and the inflation inlet (22) and the pressure gauge (26) are communicated with the first air passage (25);

the side wall of the first air passage (25) is provided with a safety valve interface (23) in a penetrating way.