CN212911860U

CN212911860U - Venturi assisted breathing device and mask

Info

Publication number: CN212911860U
Application number: CN202020813227.9U
Authority: CN
Inventors: 张晓利
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2021-04-09
Anticipated expiration: 2030-05-15

Abstract

The utility model relates to a medical product technical field discloses a venturi assisted respiration device and gauze mask, include: the exhalation collection chamber, venturi exhale subassembly, pipe and mat face connecting piece. Exhale and collect the chamber, set up under the mouth nose exhales, exhale to collect the chamber and exhale the subassembly with the venturi and be connected, the pipe exhales the subassembly with the venturi and is connected, and the venturi exhales the subassembly and passes through the top facing connecting piece and cover facing fixed. The product solves the problems that the human body breathes difficultly, feels strong oppressive and causes side air inlet due to overlarge breathing resistance of the mask surface when wearing a general self-suction mask, saves energy supply parts such as a battery and the like, lightens a counter weight, and solves the problems that the structure is complex and the wearing weight is large when the electric mask is worn.

Description

Venturi assisted breathing device and mask

Technical Field

The utility model relates to a medical product technical field specifically is a venturi assisted breathing apparatus and gauze mask.

Background

Most of the existing masks on the market directly cover the face when in use, and have the following defects: 1) the self-absorption filter type mask is obvious in protection effect and simple to wear, but when patients suffer from respiratory diseases such as asthma and rhinitis and strong exercises, the patients can use the oral cavity to assist breathing, but the resistance of the filter material to breathing cannot be overcome to meet the breathing function, so that the breathing difficulty and the feeling of oppression are strong, and the smoothness of breathing is reduced; 2) the general side of filtering nature gauze mask all can the air leakage of certain degree, and the main reason of air leakage still is respiratory resistance too big, and the side air inlet is more smooth and easy a little than passing through the filtering material air inlet, and the people is at the in-process of breathing, and the side has got into the air and just can not get to the infection of stopping the virus completely.

In order to solve the problem of suffocating feeling, most of existing mask production is limited to the mode that breathing equipment is made into whole-body wearing equipment, a filtering device is installed on positions of a cap bag, a wearing garment and the like, and air is supplied to the mouth and the nose by utilizing an air box, an electric fan and the like, so that the problem of suffocating feeling in breathing is solved, the wearing is inconvenient, and the external equipment affects the activities of human bodies too much. The air supply and filtration system is worn on the garment in the patent number of CN 106913970A, the patent named as cap type air purification device, the patent number of CN 105816972A, the patent named as wearable air purifier, the patent number of CN 106924898A, the patent named as wearable air purification system integrated on the garment and the like, and the problems of inconvenient wearing due to overlarge volume and poor cruising performance exist. For example, the active breathing type air purification clothes of the utility model in the patent with the application number of "CN 201910855296.8" combines the jet sinking gas isolation technology with the air purification technology to realize the active breathing and air purification functions, but the clothes are inconvenient to wear; the utility model discloses a wearing formula electroless air supply gauze mask device of patent application number "201910942554.6", air supply system include integrated bellows device and aggregate unit on the corsage seat of the front chest of the wearer, send the aggregate unit to the pulling force that the limbs movement produced by the flexible axle, drive bellows device air supply. The whole-body wearable air supply system limits whole-body activity and is inconvenient to wear and move.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a device and gauze mask with supplementary breathing has solved and has breathed difficulty, the top facing resistance of breathing in too big, the strong problem of sense of oppression when wearing general gauze mask. Arrange the breathing-assisting device in the mask structure body, save energy supply parts such as batteries under no special condition, lighten the counter weight and solve the problems of complex structure and large wearing weight of the electric mask when the electric mask is worn.

(II) technical scheme

The nasal cavity of a person is covered in the mask, air flow is pushed to be sprayed out of the nasal cavity by means of the air blowing pushing force of the lung during the exhalation action, and the air flow in the mask is pushed to penetrate through the mask face by means of the air blowing pushing force, so that the air flow is discharged out of the body. Due to the exhalation dynamics and the mask blockage, this air stream does not pass straight through the mask, but instead escapes around the mask, with a significant portion of the air stream escaping around the less tight periphery of the mask seal, i.e., the cheek peripheries on both sides. If the air escapes from the upper part of the cover surface, the air-breathing glasses cover the glasses in a breathing manner, and the vision is affected. And at the end of expiration, due to the reduced momentum of the flow, the pressure of the expiratory flow is not sufficient to penetrate the mask, and a substantial portion of the expiratory gas remains in the mask. After a short breathing interval (breath holding period, the time is not more than 1 second), when the inspiration action starts, the lung lobes of the human body expand and inhale from the periphery of the nasal wings, the first inhaled gas is residual gas which is not exhausted in the exhalation period in the mask surface, when the residual gas is inhaled into the nasal cavity, and then, along with the continuation of the inspiration action, the air pressure in the mask surface is gradually smaller than the air pressure outside the mask surface, and the human body inhales fresh air by means of the air pressure difference between the inside and the outside of the mask surface.

For the purpose that realizes above-mentioned assisted respiration, follow human breathing law, the utility model provides a following technical scheme: collect the gas of human mouth nose department (mainly the nasal cavity) exhalation, the exhalation air current is collected the chamber through exhaling and is inhaled into venturi expiration subassembly, accelerates in venturi to spout from the nozzle, according to venturi effect, rely on this a burst of exhalation air current after accelerating to drive the remaining gas exhaust in the cover face external, thereby remain the exhalation gas as far as possible in the cover face when breathing in, guaranteed more smoothly when breathing in. In order to increase the smooth and easy effect of breathing the utility model discloses in increased expiration pressure boost turbine and promoted the accelerated motion of expired gas, it is external that the rotation through the turbine drives the expired gas discharge. In order to exhaust the residual breath in the cover surface more quickly, the utility model discloses still increased the rotary valve device in waste gas sunction inlet department. The product solves the problems that the human body breathes difficultly, feels strong oppressive and causes side air inlet due to overlarge breathing resistance of the mask surface when wearing a general self-suction mask, saves energy supply parts such as a battery and the like, lightens a counter weight, and solves the problems that the structure is complex and the wearing weight is large when the electric mask is worn.

Particularly, the utility model mainly relates to a device of assisted respiration, include:

the breath collecting cavity is arranged below the breath of the mouth and the nose, and the opening of the breath direction of the mouth and the nose is in a micro-trumpet shape.

The venturi exhalation assembly consists of a venturi tube, a venturi inlet, a nozzle, a waste gas suction inlet and a venturi outlet. The venturi inlet is connected with the expired air collecting cavity, the nozzle is nested in the venturi tube and connected with the venturi inlet, the waste gas suction inlet is arranged on the outer wall of the venturi tube and faces the cover surface, and the venturi inlet, the nozzle and the waste gas suction inlet form a venturi gas collecting chamber together.

And the conduit is connected with the Venturi expiration assembly through threads.

And the expiratory valve is connected with the tail end of the catheter.

The venturi expiration component is fixed with the cover surface through the cover surface connecting piece.

Preferably, the direction of the airflow channel of the expired air collection cavity is 45-60 degrees to the horizontal direction, so that the expired air of a human body can be collected conveniently, and the airflow channel is formed. The diameter of the expired air collection chamber is 3-4 cm. The breath collecting cavity is in a tapered shape, and the diameter of the breath collecting cavity at the other end of the mouth and nose in the breath direction is 2-3 cm.

Preferably, the exhaust gas intake port in the venturi exhalation module is circular and has a diameter of 2-3 cm. The exhaust gas suction inlet is at 90 deg. to the venturi tube. The throat diameter of the nozzle in the Venturi expiration component is 0.5-0.8 cm. The angle of the nozzle is 10-30 degrees. The venturi outlet was 1.5 cm.

Preferably, an exhalation supercharging turbine is arranged in a Venturi air collecting chamber in the Venturi expiration assembly. The exhalation booster turbine includes a turbine, a shaft, and blades.

Preferably, the blades of the expiratory pressure boost turbine are in the shape of a three-dimensional annular groove. The blades of the expiratory pressure boosting turbine have 8-10 blades which are arranged in a radial curve.

Preferably, the exhaust gas intake of the venturi exhalation module is provided with a rotary valve having 8-10 rotary vanes.

The top facing connecting piece is the polypodium claw type, is connected with top facing screw thread or buckle spare, exhales to collect the chamber and exhales the subassembly with the venturi and is connected through screw thread or buckle, and the pipe exhales the subassembly with the venturi and is connected through the screw thread.

A mask comprises the auxiliary breathing device.

(III) advantageous effects

Compared with the prior art, the utility model provides a supplementary respiratory device and gauze mask possesses following beneficial effect:

1. a channel is made for the exhaled air, so that the exhaled air is prevented from escaping, and the exhaled air is exhausted through the channel, so that a good foundation is laid for smooth inspiration function. The utility model discloses set out with pneumatic conveying mechanism, through venturi injection principle, with human expired gas with higher speed the back, drive residual gas in the top facing and discharge to it is more smooth and easy when guaranteeing to breathe in. The utility model discloses an expiration is collected chamber and venturi and is exhaled subassembly and collect human exhalation waste gas and recycle, has realized the effect of air pressure boost acceleration, has accomplished the row of arranging of exhaling waste gas, remains less exhalation waste gas in the cover, has avoided exhaling waste gas to arrange in the unable short time to the greatest extent and extrude to the top facing top, causes the problem of the fuzzy lens of breathing out. The utility model has the characteristics of simple structure need not the takeaway energy such as battery, bears a burden for a short time.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

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

Fig. 1 is a structural diagram of an assisted breathing apparatus provided by the present invention;

FIG. 2 is a schematic view of a venturi exhalation module according to the present invention;

fig. 3 is a structural diagram of an expiratory pressure-increasing turbine provided by the present invention;

FIG. 4 is a schematic view of a rotary valve according to the present invention;

description of reference numerals:

1-an expired air collection chamber; 2-a venturi exhalation module; 3-a catheter; 4-cover surface connecting piece; 5-an exhalation valve; 6-cover surface.

21-a venturi tube; 22 a venturi inlet; 23-a nozzle; 24-exhaust suction; 25-a venturi outlet; 26-venturi collection chamber.

30-an expiratory pressure boost turbine; 31-a turbine; 32-axis; 33-blade.

40-a rotary valve; 41-rotating blades.

Detailed Description

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

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "physical quantity" in the formula, unless otherwise noted, is understood to mean a basic quantity of a basic unit of international system of units, or a derived quantity derived from a basic quantity by a mathematical operation such as multiplication, division, differentiation, or integration.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

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 work belong to the protection scope of the present invention.

Referring to fig. 1 in combination, according to a first embodiment of the present application, a respiratory assistance apparatus is configured to include: a respiratory assistance apparatus, comprising: an exhalation collection chamber 1, a venturi exhalation module 2, a conduit 3, a mat connection 4 and an exhalation valve 5. Exhale and collect chamber 1, set up under the mouth and nose exhales, exhale and collect chamber 1 and exhale subassembly 2 with the venturi and be connected through screw thread or buckle, pipe 3 exhales subassembly 2 with the venturi and is connected through the screw thread, and the subassembly 2 is exhaled to the venturi is fixed with top facing 6 through top facing connecting piece 4. Expiration collection chamber 1, set up under the mouth nose exhales, it is little loudspeaker form to exhale the opening in mouth nose exhalation direction department.

Furthermore, the diameter of the expired air collection cavity 1 is 3-4cm, so that the expired air of a human body can be collected conveniently, and an air flow channel is formed. The direction of the airflow channel of the exhalation collecting cavity 1 is 45-60 degrees to the horizontal direction, so that the exhalation airflow can be collected to the maximum extent, the dispersed airflow exhaled by the mouth and the nose can be focused to form a streamline airflow channel, the airflow flowing rate is improved, and the utilization rate of the exhalation airflow is enhanced. The breath collecting cavity 1 is in a tapered shape, and the diameter of the other end of the breath collecting cavity in the breath direction of the mouth and the nose is 2-3 cm.

Referring to fig. 2 in combination, the present application also discloses a second embodiment, a venturi exhalation assembly 2, comprised of a venturi tube 21, a venturi inlet 22, a nozzle 23, an exhaust suction inlet 24, and a venturi outlet 25. The venturi inlet 22 is connected with the exhaled air collecting chamber 1, the nozzle 23 is nested in the venturi tube 21 and is connected with the venturi inlet 22, the waste gas suction inlet 24 is arranged on the outer wall of the venturi tube 21, and the venturi inlet 22, the nozzle 23 and the waste gas suction inlet 24 jointly form a venturi gas collecting chamber 26.

Further, the exhaust gas intake port 24 in the venturi exhalation module 2 is circular and has a diameter of 2-3 cm. The exhaust gas suction port 24 is at 90 ° to the venturi tube 21. The throat diameter of the nozzle 23 in the Venturi expiration component 2 is 0.5-0.8 cm. The angle of the nozzle 23 is 10-30 deg.. The venturi outlet 25 is 1.5 cm.

Referring to fig. 3 in combination, the present application also discloses a third embodiment, a breath boosting turbine 30 is disposed in the venturi collection chamber 26 of the venturi breath assembly 2, the breath boosting turbine 30 includes a turbine 31, a shaft 32 and blades 33, the acceleration of the exhaled air is increased, and the rotation of the turbine 31 drives the exhaled air to be exhausted.

Further, the blades 33 of the exhalation booster turbine 30 are shaped like a three-dimensional annular groove. The leaves 33 have 8 to 10 leaves arranged in a radial curve.

Referring now to FIG. 4 in combination, a fourth embodiment is disclosed wherein the exhaust inlet port 24 of the venturi exhalation module 2 is provided with a rotary valve 40, the rotary valve 40 having 8-10 rotary vanes 41.

According to an embodiment of the application, the mask comprises the auxiliary breathing device.

The utility model discloses an use venturi air conveying principle, through being thin by thick with the exhalation air current, in order to accelerate the gas flow rate, make the nozzle department rear side of exhalation air current gas in the venturi subassembly form a "low pressure" district, can produce certain adsorption to it when this low pressure district is close to the interior residual gas of top facing, thereby make the exhalation air current drive the interior residual gas of top facing and discharge together, not only accomplished in the top facing exhalation waste gas and should arrange to the greatest extent and discharge, and further reduced when breathing in the top facing internal pressure, for inspiratory smooth and easy good basis of putting down, it is more smooth and easy to have guaranteed that the human body breathes in, effectively solved the breathing and suffocated feeling problem, the problem of breathing fuzzy lens has been solved. Additionally, the utility model discloses rely on human exhalation gas stream as power source, need not extra electric power or other power sources, simple structure.

Those skilled in the art will readily understand that the above embodiments are only for illustrating the technical solutions of the present invention, and not for limiting the same; the above advantageous modes can be freely combined and superposed without conflict. The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.

Claims

1. A venturi assisted breathing device, comprising: the device comprises an expiration collecting cavity (1), a Venturi expiration component (2), a conduit (3), a cover surface connecting piece (4) and an expiration valve (5); expiration collection chamber (1) sets up in the oblique below of mouth and nose expiration, and expiration collection chamber (1) is connected with venturi expiration subassembly (2), and pipe (3) are connected with venturi expiration subassembly (2), and venturi expiration subassembly (2) are fixed with top facing (6) through top facing connecting piece (4), and expiratory valve (5) are terminal at the pipe.

2. The venturi assisted breathing device according to claim 1, wherein the exhalation collection chamber (1) is open in the mouth-nose exhalation direction in a micro-trumpet shape, the airflow channel direction of the exhalation collection chamber (1) is in a 45 ° to 60 ° direction with the horizontal, the diameter is 3 to 4cm, the exhalation collection chamber is in a tapered shape, and the diameter at the other end of the mouth-nose exhalation direction is 2 to 3 cm.

3. The venturi assisted breathing device according to claim 1, characterized in that the venturi exhalation assembly (2) consists of a venturi tube (21), a venturi inlet (22), a nozzle (23), an exhaust gas intake opening (24) and a venturi outlet (25); the venturi inlet (22) is connected with the expiration collecting cavity (1), the nozzle (23) is nested in the venturi tube (21), the nozzle (23) is connected with the venturi inlet (22), the waste gas suction inlet (24) is arranged on the outer wall of the venturi tube (21) and faces to the cover surface, and the venturi inlet (22), the nozzle (23) and the waste gas suction inlet (24) jointly form a venturi gas collecting chamber (26).

4. The venturi assisted breathing device according to claim 3, characterized in that the exhaust gas intake opening (24) of the venturi exhalation module (2) is circular and has a diameter of 2-3cm, the exhaust gas intake opening (24) is at 90 ° to the venturi tube (21), the throat diameter of the nozzle (23) is 0.5-0.8cm, the angle of the nozzle (23) is 10 ° -30 °, and the venturi outlet (25) is 1.5 cm.

5. The venturi assisted breathing device according to claim 4, characterized in that an exhalation booster turbine (30) is placed within the venturi plenum (26) of the venturi exhalation module (2).

6. The venturi assisted breathing device according to claim 5, characterized in that the expiratory pressure boost turbine (30) comprises a turbine (31), a shaft (32) and blades (33).

7. The venturi assisted breathing device according to claim 6, characterized in that the blades (33) of the expiratory pressure boosting turbine (30) are shaped as a three-dimensional ring groove, and the blades (33) of the expiratory pressure boosting turbine (30) have 8-10 blades arranged in a radial curve.

8. The venturi assisted breathing device according to any of claims 3 to 7, characterized in that the exhaust gas intake opening (24) of the venturi exhalation module (2) is provided with a rotary valve (40), the rotary valve (40) having 8 to 10 rotary blades (41).

9. A mask comprising a venturi assisted breathing apparatus, wherein the assisted breathing apparatus is as claimed in any one of claims 1 to 8.