CN215653490U

CN215653490U - Gas flow guide valve nozzle and respirator with same

Info

Publication number: CN215653490U
Application number: CN202121460806.0U
Authority: CN
Inventors: 李成; 李志鹏; 鲁明; 丁超; 丁敏; 陈平绪; 叶南飚
Original assignee: Kingfa Science and Technology Co Ltd; Guangdong Kingfa Science and Technology Co Ltd
Current assignee: Kingfa Science and Technology Co Ltd; Guangdong Kingfa Science and Technology Co Ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2022-01-28
Anticipated expiration: 2031-06-28
Also published as: WO2023272842A1

Abstract

The utility model relates to the technical field of respirators, in particular to a gas guide valve nozzle and a respirator with the same. According to the gas flow guide valve nozzle, the discharged gas is collected in the exhaust pipe, and the one-way valve plate is turned outwards around the hinge point of the one-way valve plate and the valve seat to be opened under the pressure action of the exhaled gas. Based on the lever principle, the one-way valve plate can be easily opened under the condition of slight airflow, waste gas can be discharged in time, smooth breathing is guaranteed, and the use experience of a user is effectively improved; the respirator can effectively solve the problems that the non-woven fabrics and the filter cloth on the inner side of the mask are blocked by water vapor, the breathing resistance is large, the exhaust gas is difficult to discharge, the exhaust gas replacement rate is low, and water vapor atomization glasses are used at present.

Description

Gas flow guide valve nozzle and respirator with same

Technical Field

The utility model relates to the technical field of respirators, in particular to a gas guide valve nozzle and a respirator with the same.

Background

With more and more economic activities, people put higher demands on the requirements and comfort of respiratory protection. People wear the mask for a little long time, and bad experiences such as suffocation, damp and hot cover bodies, atomizing glasses and the like can occur. The reasons for the poor experience are four: firstly, after a wearer wears the mask, because the hot air exhaled by the mouth and the nose contains a large amount of water vapor, the water vapor is not exhausted, so that the fine capillary holes of the non-woven fabric or the filter cloth on the inner side of the mask body of the mask are quickly blocked, and the air intake and the air exhaust are unsmooth; secondly, the mask with a small cavity can be utilized in front of the mouth, the area of filter cloth which really plays a role in filtering is small, the flow of air intake and exhaust is limited, and hot air exhaled by the mouth and the nose can cause moisture to be condensed on the inner side cloth cover, so that the face is difficult to wet and hot; thirdly, the inner cavity of the mask with a large mouth cavity is always filled with waste gas, so that the waste gas replacement rate is extremely low; fourthly, when people breathe out gas, the mask body cavity is always in a positive pressure state, even if the mask with the valve needs enough gas in the mask body to be opened, the positive pressure can lead the air leakage on the two sides of the nose bridge.

In order to solve the above problems, half-face masks with valves are beginning to appear on the market, however, the functions of the valves are limited. Chinese patent CN212814415U discloses a mask with a valve, which comprises a mask main body, elastic adjusting bands connected to two sides of the mask main body, and a breather valve fixedly arranged on the mask main body, wherein the breather valve comprises a breather valve base, the bottom surface of the breather valve base is provided with a filter element replacing device, and the breather valve cover is detachably connected with the breather valve base. Although the gauze mask in the above-mentioned scheme has set up the valve, above-mentioned valve only plays the effect to inhaling filtration, and can't play the effect of air current direction to the exhaling air current, can't solve the breathing out, the cover body is wet and hot, atomizing glasses scheduling problem, and user's use is experienced and is not improved. Still like chinese patent CN205832406U discloses a gauze mask exhaust structure of utensil pipeline buffering district section, utilizes the pressure differential inside and outside the gauze mask, and reaches the switching action of one-way check valve, and waste gas just discharges through the valve when being full of certain malleation in the gauze mask inner chamber, and the valve is opened the difficulty when malleation is less, can lead to the waste gas of exhaling to be detained, leads to the problem such as holding back breath, the cover body damp and hot, atomizing glasses.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and provides a gas guide valve nozzle and a respirator with the same, which can discharge waste gas in time, promote the circulation of air flow inside and outside a mask body, and solve the problems that non-woven fabrics and filter cloth on the inner side of the mask are blocked by water vapor, the breathing resistance is large, the waste gas is difficult to discharge, the waste gas replacement rate is low, and water vapor atomization glasses are provided.

In order to solve the technical problems, the utility model adopts the technical scheme that:

the utility model provides a gaseous diverter valve mouth, includes disk seat, check valve piece and blast pipe, the blast pipe is installed and is equipped with the exhaust outlet in the end of disk seat and blast pipe, the surface of check valve piece one end can with the exhaust outlet laminating sets up and seals the exhaust outlet, the other end of check valve piece with the disk seat rotates to be connected.

According to the gas flow guide valve nozzle, the discharged gas is collected in the exhaust pipe, and the one-way valve plate is turned outwards around the hinge point of the one-way valve plate and the valve seat to be opened under the pressure action of the exhaled gas. At the moment, the hinge point of the one-way valve plate and the valve seat is used as a fulcrum, and based on the lever principle, the one-way valve plate can be easily opened under the condition of slight airflow, so that waste gas can be discharged in time, smooth breathing is guaranteed, and the use experience of a user is effectively improved.

Further, the blast pipe includes nose blast pipe and mouth blast pipe, and nose blast pipe end is equipped with first exhaust outlet, and mouth blast pipe end is equipped with the second exhaust outlet, the surface of check valve piece can set up with the laminating of first exhaust outlet, second exhaust outlet and seal first exhaust outlet, second exhaust outlet, and at least one in first exhaust outlet, the second exhaust outlet is laminated with the surface of check valve piece one end. The air flow exhaled by the nose part is mainly exhausted by the nose exhaust pipe, and the air flow exhaled by the mouth part is mainly exhausted by the mouth exhaust pipe. When air is inhaled or not exhaled, the surface of the one-way valve plate is attached to the first exhaust outlet and the second exhaust outlet to seal the first exhaust outlet and the second exhaust outlet; when exhaling, based on the lever principle, can open the one-way valve piece easily.

Further, the nose blast pipe is two sets of that the symmetry set up, just the cross-sectional dimension of nose blast pipe reduces along the exhaust direction gradually. The pressure of the airflow at the first exhaust outlet is greater according to bernoulli's equation without affecting breathing, so that the valve can be easily opened when the wearer exhales.

Further, the side portion of the oral exhaust pipe is connected with the side portion of the nasal exhaust pipe, and the oral exhaust pipe and the nasal exhaust pipe are gradually reduced along the exhaust direction along the sectional dimension of the oral exhaust pipe. The pressure of the airflow at the second exhaust outlet is greater according to bernoulli's equation without affecting breathing, so that the valve can be easily opened when the wearer exhales.

Further, the nose exhaust pipe and the mouth exhaust pipe are of an integrally formed structure, and the integrally formed structure is detachably mounted on the valve seat. The design of integrated into one piece structure is convenient for the machine-shaping of nose blast pipe and mouth blast pipe, and integrated into one piece structure can be dismantled with the disk seat and be convenient for change the nose blast pipe and the mouth blast pipe of different model sizes according to wearer's needs.

Further, the disk seat is including dismantling face lid and the bottom of connection, the face lid is equipped with the first installation department of being connected with nose blast pipe and the second installation department of being connected with mouth blast pipe, the cavity internalization that the check valve piece formed between face lid and bottom, the bottom is equipped with a plurality of exhaust holes that hold the gas outflow.

Further, the juncture of the first installation part and the second installation part is provided with an air guide plate for guiding air flow to one end surface of the check valve plate. The guide plate leads the expiratory airflow of the nasal exhaust pipe and the oral exhaust pipe to flow to the lower end of the one-way valve plate after passing through the air guide plate.

Furthermore, the valve seat is provided with a connecting column, and the one-way valve plate is rotatably connected with the valve seat through the connecting column. Of course, the rotational connection of the check valve plate and the valve seat is not limited to the above.

The utility model also provides a respirator comprising the gas guide valve nozzle.

According to the respirator, the one-way valve plate can be easily opened under the condition of slight airflow, waste gas can be discharged in time, smooth breathing is guaranteed, the problems that non-woven fabrics and filter cloth on the inner side of a mask are blocked by water vapor, breathing resistance is large, waste gas is difficult to discharge, the waste gas replacement rate is low, and water vapor atomization glasses are solved, and the use experience of a user is effectively improved.

Furthermore, the mask comprises a mask body and mask belts connected to two sides of the mask body, and the gas guide valve nozzle is arranged in the middle of the mask body. The mask body, the gas guide valve mouth and the mask belt form a mask, the mask can be a folding type, cup type, bowl type and other half-mask respirators, and the mask is not limited to the half-mask respirators.

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

according to the gas guide valve nozzle and the respirator with the same, the one-way valve plate can be easily opened under the condition of slight airflow, waste gas can be discharged in time, smoothness of breathing is guaranteed, the problems that non-woven fabrics and filter cloth on the inner side of a mask are blocked by water vapor, breathing resistance is large, waste gas is difficult to discharge, the waste gas replacement rate is low, and water vapor atomization glasses are solved, and the use experience of a user is effectively improved.

Drawings

FIG. 1 is a schematic view of a gas pilot valve nozzle;

FIG. 2 is a schematic view of another angle of the gas guiding valve nozzle

FIG. 3 is a schematic distribution diagram of the exhaust outlet, the air guide plate and the check valve plate inside the gas guide valve nozzle;

FIG. 4 is a schematic view of a valve seat;

FIG. 5 is a schematic structural view of a respirator in a second embodiment;

in the drawings: 1. a valve seat; 11. a face cover; 111. a first mounting portion; 112. a second mounting portion; 12. a bottom cover; 121. an exhaust hole; 2. a one-way valve plate; 3. a nasal exhaust; 31. a first exhaust outlet; 4. an outlet pipe; 41. a second exhaust outlet; 5. connecting columns; 6. a gas guide plate; 7. a cover body; 8. the mask is provided with a belt.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.

Example one

Fig. 1 to 4 show an embodiment of a gas guide valve nozzle of the present invention, which includes a valve seat 1, a check valve plate 2 and an exhaust pipe, wherein the exhaust pipe is installed on the valve seat 1, and an exhaust outlet is arranged at a tail end of the exhaust pipe, a surface of one end of the check valve plate 2 can be attached to the exhaust outlet to seal the exhaust outlet, and another end of the check valve plate 2 is rotatably connected to the valve seat 1. The exhaust pipes can be a group and are used for guiding exhaled gas of the outlet part and the nose part; the exhaust pipes can be also divided into two groups, and the two groups of exhaust pipes are respectively used for guiding gas exhaled by the outlet part and gas exhaled by the nose part. In addition, the check valve plate 2 of this embodiment can be made of an elastic soft material, and can be rotatably connected with the valve seat 1 through the connecting column 5. The end part of the one-way valve plate 2 is provided with a positioning slot hole which is connected with the connecting column 5 in a penetrating way, the size of the positioning slot hole is larger than the section size of the connecting column, and the connecting column 5 is matched with the positioning slot hole to play a positioning role.

When this embodiment was implemented, exhaust gas collects in the blast pipe, and under the pressure effect of expired gas, check valve piece 2 opens around the pin joint of check valve piece 2 and disk seat 1 to the outside upset. At the moment, the hinge point of the one-way valve plate 2 and the valve seat 1 is used as a fulcrum, and based on the lever principle, the one-way valve plate 2 can be easily opened under the condition of slight airflow, so that waste gas can be discharged in time, smooth breathing is ensured, and the use experience of a user is effectively improved; and this embodiment simple structure, low cost conveniently obtain generally promoting, especially in daily protection and industry labour protection trade.

When two groups of exhaust pipes are arranged, the exhaust outlets of the two groups of exhaust pipes can be directly opposite to the surface of one end of the one-way valve plate 2, the exhaust outlets of the other group of exhaust pipes are directly opposite to the surface of the middle part of the one-way valve plate 2, and the airflow of the other group of exhaust outlets can be guided to guide the airflow to the surface of one end of the one-way valve plate 2.

Specifically, in this embodiment, the blast pipe includes nose blast pipe 3 and mouth blast pipe 4, and nose blast pipe 3 end is equipped with first exhaust outlet 31, and mouth blast pipe 4 end is equipped with second exhaust outlet 41, the surface of check valve piece 2 can be sealed first exhaust outlet 31, second exhaust outlet 41 with first exhaust outlet 31, the laminating setting of second exhaust outlet 41. In order to easily open the check valve sheet 2 by using the principle of leverage, the first exhaust outlet 31 and the second exhaust outlet 41 in this embodiment may be opposite to the lower portion of the check valve sheet 2. In order to obtain a compact structure, the first exhaust outlet 31 faces the middle surface of the check valve plate 2, and the second exhaust outlet 41 faces the lower surface of the check valve plate 2, in this embodiment, in order to make the check valve plate 2 easily opened even when the first exhaust outlet 31 discharges air, the air guide plate 6 may be arranged to guide the air flow to the lower surface of the check valve plate 2, and the air guide plate 6 is located between the first exhaust outlet 31 and the second exhaust outlet 41, so that the lever principle can be utilized. In this embodiment, the nasal exhaust tube 3 and the oral exhaust tube 4 can be made of materials with good biocompatibility, and the nasal exhaust tube 3 and the oral exhaust tube 4 can be designed to have different heights, different sizes or different installation modes according to different shapes of faces, ages and application occasions.

The nasal exhaust tubes 3 are symmetrically arranged in two groups, and the cross-sectional dimensions of the nasal exhaust tubes 3 are gradually reduced along the exhaust direction; the side part of the oral exhaust pipe 4 is connected with the side part of the nasal exhaust pipe 3, and the oral exhaust pipe 4 and the nasal exhaust pipe 3 are gradually reduced along the exhaust direction along the section size of the oral exhaust pipe 4. Thus, at the narrowing of the nasal exhaust tube 3 or the oral exhaust tube 4, the dynamic pressure reaches the maximum value, the static pressure reaches the minimum value, the velocity of the gas rises due to the reduction of the cross-sectional area of the through-flow, and further, a pressure difference is generated, which is helpful for providing an external suction force for the fluid, thereby realizing the circulation of the internal and external air flows.

In order to facilitate the machining and forming of the gas diversion valve and the replacement of the nose exhaust pipe 3 and the mouth exhaust pipe 4, the nose exhaust pipe 3 and the mouth exhaust pipe 4 of the embodiment are of an integrally formed structure, and the integrally formed structure is detachably mounted on the valve seat 1. Of course, the integral design of the nasal exhaust tubing 3 and the oral exhaust tubing 4 is not a limiting provision of the present invention.

Valve seat 1 is including dismantling face lid 11 and bottom 12 of connection, face lid 11 is equipped with the first installation department 111 that is connected with nose exhaust pipe 3 and the second installation department 112 of being connected with mouth exhaust pipe 4, the cavity internalization that check valve piece 2 formed between face lid 11 and bottom 12, bottom 12 is equipped with a plurality of exhaust holes 121 that hold the gas outflow. Wherein, the juncture of the first installation part 111 and the second installation part 112 is provided with an air guide plate 6 for guiding the air flow to one end surface of the check valve plate 2. By the design, the valve seat 1 is compact in structure, the one-way valve plate 2 moves in the cavity, and the structure of the one-way valve plate 2 is protected to prolong the service life of the one-way valve plate 2. In this embodiment, the first exhaust outlet 31 faces the surface of the middle of the check valve plate 2, the second exhaust outlet 41 faces the surface of one end of the check valve plate 2, the first exhaust outlet 31 is communicated with the first mounting portion 111, the second exhaust outlet 41 is communicated with the second mounting portion 112, the air guide plate 6 at the junction of the first mounting portion 111 and the second mounting portion 112 inclines downwards from the first mounting portion 111 to the second mounting portion 112, so as to guide the airflow of the first exhaust outlet 31 to the lower side of the second exhaust outlet 41, and the airflow exhaled by the nasal exhaust tube 3 is guided to the surface acting on one end of the check valve plate 2. It should be noted that the air guide plate 6 is not limited to be connected between the first mounting portion 111 and the second mounting portion 112, and can also be connected to the nose exhaust pipe 3, the mouth exhaust pipe 4 or the valve seat 1, as long as the air guide plate 6 can guide the airflow to the lower portion of the check valve plate 2, the effect that the check valve plate 2 can be easily opened by the airflow at the mouth or the nose can be achieved.

In summary, when the utility model is provided with the oral exhaust pipe 4 and the nasal exhaust pipe 3, the airflow exhaled by the nasal exhaust pipe 3 is acted by the air guide plate 6, and the shape design of the nasal exhaust pipe 3 and the oral exhaust pipe 4 is based on the venturi tube effect and the lever principle, so that the one-way valve plate 2 can be opened by breathing each time, and the waste gas can be exhausted in time.

Example two

This embodiment is a respirator embodiment that includes a gas diverter valve nozzle as described in embodiment one. The respirator of the embodiment may be embodied as a mask, and includes a mask body 7 and mask straps 8 connected to both sides of the mask body 7, and the gas guide valve nozzle is installed in the middle of the mask body 7, as shown in fig. 5. The mask of the present embodiment is not limited to an ear-mount type mask or a head-mount type mask. The height material of the exhaust pipe can be adjusted to adapt to half-mask respirators of different sizes and different types. This embodiment is at the gaseous guiding valve mouth of cover 7 middle part installation, and the air current is more concentrated, can not detain waste gas and steam in the cover 7, and nose and oral area respiratory airflow directly exhale. In addition, this embodiment is with gaseous diverter valve mouth mounted position according to the fixed angle of wearer's mouth and nose position for the respirator is directly discharged by very first time to the gas of wearer's mouth and nose exhalation, guarantees that the cover body 7 is dry and comfortable, and breathes at every turn and can both open check valve piece 2, realizes gas exchange.

When the exhaust pipe of the present embodiment includes the nasal exhaust pipe 3 and the oral exhaust pipe 4: the nose exhaust pipe 3 is under the relatively sealed environment of the cover body 7, gives vent to anger at every turn and can all form the venturi effect in the first exhaust outlet 31 department of nose exhaust pipe 3 in the twinkling of an eye, lets the whole cover 7 inside negative pressure that forms for the cover body 7 is inboard not have waste gas to be detained, the cloth cover is dry and form inside and outside air current circulation. Similarly, the mouth exhaust pipe 4 can form a venturi effect at the second exhaust outlet 41 of the nose exhaust pipe 3 every time when giving vent to anger under the relatively sealed environment of the cover body 7, so that the inside of the whole cover body 7 forms negative pressure, and the inner side of the cover body 7 does not have waste gas detention, the cloth cover is dry and forms inner and outer airflow circulation.

When people wear the respirator of the embodiment, when the periphery of the cover body 7 is tightly attached to the face, certain gaps are reserved between the tube opening of the nasal exhaust tube 3 and the lower edge of the nose and between the tube opening of the oral exhaust tube 4 and the front edge of the lips. When a wearer inhales, the one-way valve plate 2 is in a closed state, and outside fresh air can only enter from the cover body 7 with the high-efficiency low-resistance filter layer. When a wearer exhales waste gas, the airflow has strong kinetic energy and directly rushes into the nasal exhaust pipe 3 or the oral exhaust pipe 4, the oral exhaust pipe 4 is directly aligned to the lowest edge of the one-way valve plate 2, and the one-way valve plate 2 is easily opened based on the lever principle. Similarly, the air flow of the second exhaust outlet 41 of the nasal exhaust tube 3 meets the obstruction of the upper part of the check valve plate 2, and then is guided to the middle lower part of the check valve plate 2 by the air guide plate 6, and the check valve plate 2 is easily opened based on the lever principle. So, no matter what kind of breathing mode or breathing custom the person of wearing has, both realized that nose blast pipe 3 does not occupy the space of lip, realized again that the less air current that the nostril came out also can easily open one-way valve block 2, borrow the venturi effect again, the air current forms the air current circulation inside and outside whole gauze mask or half face guard respirator for the person of wearing breathes easily smoothly.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a gaseous diverter valve mouth, its characterized in that includes disk seat (1), check valve piece (2) and blast pipe, the blast pipe is installed and is equipped with the exhaust outlet in disk seat (1) and the end of blast pipe, the surface of check valve piece (2) one end can with the laminating setting of exhaust outlet is sealed with the exhaust outlet, the other end of check valve piece (2) with disk seat (1) rotates and connects.

2. The gas guide valve nozzle according to claim 1, wherein the exhaust pipe comprises a nose exhaust pipe (3) and a mouth exhaust pipe (4), a first exhaust outlet (31) is formed at the tail end of the nose exhaust pipe (3), a second exhaust outlet (41) is formed at the tail end of the mouth exhaust pipe (4), and the surface of the check valve plate (2) can be attached to the first exhaust outlet (31) and the second exhaust outlet (41) to seal the first exhaust outlet (31) and the second exhaust outlet (41).

3. A gas pilot valve nozzle according to claim 2, characterized in that the nasal exhaust tubes (3) are arranged in two groups symmetrically, and the cross-sectional dimension of the nasal exhaust tubes (3) decreases gradually in the exhaust direction.

4. A gas pilot valve nozzle according to claim 2, characterized in that the side of the mouth exhaust pipe (4) is connected with the side of the nose exhaust pipe (3), and the mouth exhaust pipe (4) and the nose exhaust pipe (3) are gradually reduced along the cross-sectional dimension of the mouth exhaust pipe (4) along the exhaust direction.

5. A gas pilot valve nozzle according to claim 2, characterized in that the nose exhaust pipe (3) and the mouth exhaust pipe (4) are of an integrally formed structure, and the integrally formed structure is detachably mounted on the valve seat (1).

6. The gas guide valve nozzle according to any one of claims 1 to 5, wherein the valve seat (1) comprises a surface cover (11) and a bottom cover (12) which are detachably connected, the surface cover (11) is provided with a first mounting part (111) connected with the nose exhaust pipe (3) and a second mounting part (112) connected with the mouth exhaust pipe (4), the one-way valve plate (2) moves in a cavity formed between the surface cover (11) and the bottom cover (12), and the bottom cover (12) is provided with a plurality of exhaust holes (121) for allowing gas to flow out.

7. The gas guide valve nozzle according to claim 6, wherein a gas guide plate (6) for guiding the gas flow to one end surface of the check valve plate (2) is arranged at the junction of the first installation part (111) and the second installation part (112).

8. The gas guide valve nozzle according to claim 1, wherein the valve seat (1) is provided with a connecting column (5), and the one-way valve sheet (2) is rotatably connected with the valve seat (1) through the connecting column (5).

9. A respirator, comprising a gas conductance valve nozzle of any one of claims 1 to 8.

10. The respirator of claim 9, further comprising a mask body (7) and mask straps (8) connected to both sides of the mask body (7), wherein the gas conductance valve nozzle is installed at the middle of the mask body (7).