CN209762339U

CN209762339U - Fluid one-way conduction structure, non-return assembly and breathing equipment

Info

Publication number: CN209762339U
Application number: CN201920243514.8U
Authority: CN
Inventors: 孙一鑫
Original assignee: Kunshan Tianshan Tiandi Software Technology Co Ltd
Current assignee: Kunshan Tianshan Tiandi Software Technology Co Ltd
Priority date: 2019-02-26
Filing date: 2019-02-26
Publication date: 2019-12-10
Anticipated expiration: 2029-02-26

Abstract

The application relates to the field of mechanical equipment, in particular to a fluid one-way conduction structure, a check assembly and breathing equipment. The fluid one-way conduction structure comprises a first fluid intercepting body and a second fluid intercepting body; the first fluid-cut body comprises a first connecting part and a first conduction part of at least one first through hole which are connected with each other; the second cut-off body comprises a second connecting part and a second conduction part of at least one second through hole which are connected with each other; when the fluid is reversed, at least part of the first conduction part and at least part of the second conduction part can move relatively. The fluid one-way conduction structure can be designed into any shape, and is convenient to install. For example, when the one-way fluid communicating structure is used for an inhalation pipeline, the one-way fluid communicating structure can be suitable for breathing pipelines with any size and shape, the one-way fluid communicating structure can also be arranged on the breathing isolation cover body, the shape of the breathing isolation cover is suitable for the face shape of people or animals, and the first cut-off fluid and the second cut-off fluid can be set to be suitable shapes so as to better exert the function and the effect of the one-way fluid communicating structure.

Description

Fluid one-way conduction structure, non-return assembly and breathing equipment

Technical Field

The application relates to the field of mechanical equipment, in particular to a fluid one-way conduction structure, a check assembly and breathing equipment.

Background

The one-way conduction structure is that fluid can only flow along an inlet but can not flow back, for example, a one-way valve, but the one-way valve in the prior art has large volume and large occupied space, and is not easy to install especially when the cross section is in an irregular shape.

SUMMERY OF THE UTILITY MODEL

an object of the embodiment of this application is to provide a one-way conduction structure of fluid, non return subassembly and respiratory equipment, it aims at improving the problem that current check valve body occupation space is big, difficult installation.

The first aspect of the present application provides a fluid one-way conduction structure, which includes a first fluid intercepting body and a second fluid intercepting body;

the first fluid cutting body comprises a first connecting part and a first conducting part which are connected with each other, and the first conducting part is provided with at least one first through hole;

The second cut-off body comprises a second connecting part and a second conduction part which are connected with each other, and the second conduction part is provided with at least one second through hole;

When the fluid flows in a reversing way, at least part of the first conduction part and at least part of the second conduction part can move relatively;

When the fluid flows in the forward direction, a gap is formed between the first conduction part and the second conduction part, and the gap is communicated with the at least one first through hole and the at least one second through hole;

When the fluid flows in the reverse direction, all the first through holes are blocked by the second cut-off body and/or all the second through holes are blocked by the first cut-off body.

the fluid one-way conduction structure can be designed into any shape according to the material and the shape of the flow guide pipe, and is convenient to install.

In some embodiments of the first aspect of the present application, when the fluid one-way conduction structure is applied to a breathing apparatus, for example, when the fluid one-way conduction structure is installed on an inhalation pipeline or a breathing pipeline, the fluid one-way conduction structure is used for opening and closing between breaths, so that it is possible to prevent exhaled gas from being inhaled again when inhaling, and supply gas from entering the mouth and nose all the time when inhaling.

The breathing pipeline has different shapes and different sizes, the fluid one-way conduction structure can be suitable for use, the fluid one-way conduction structure can also be arranged on the breathing isolation cover body, the shape of the breathing isolation cover is adapted to the face shape of people or animals, and the first cut-off body and the second cut-off body can be set to be adapted to better exert the function and the effect of the fluid one-way conduction structure.

when fluid flows reversely, the two opposite surface parts of the first conduction part and the second conduction part are mutually attached, gaps are arranged between the rest parts of the two surfaces, and the gaps are not communicated with all the first through holes and all the second through holes.

Because the relation such as the shape of fluid atress and first conduction portion, in comparatively narrow and small compact space water conservancy diversion, first cut off the fluid and the second closure body can make arbitrary shape, and when the fluid reverse flow, first conduction portion and second conduction portion two in opposite directions probably can not be each other completely anastomotic subsides and establish, but as long as satisfy first through-hole, the mutual nonconducting of second through-hole can.

in some embodiments of the first aspect of the present application,

The first connecting part is arranged around the first conduction part, and the second connecting part is arranged around the second conduction part.

Fluid cannot flow through the first connecting part and the second connecting part; under the action of the fluid, the first cut-off fluid and the second cut-off fluid are stressed more uniformly. In addition, the first connecting part and the second connecting part are respectively arranged around the first conduction part and the second conduction part, so that the fluid one-way conduction structure is convenient to install in the flow guide pipe, and no gap is formed between the first connecting part and the second connecting part.

In some embodiments of the first aspect of the present application,

The first cut-off body and the second cut-off body can slide relatively, and when the fluid flows in a reversing way, the first conduction part and the second conduction part can be mutually abutted or separated.

In some embodiments of the first aspect of the present application,

When the fluid flows reversely, at least parts of two opposite surfaces of the first conduction part and the second conduction part are attached to each other; both surfaces are curved surfaces or flat surfaces.

Two faces are curved surfaces or planes, and the parts of the two faces, which are mutually attached, have no gaps, so that the sealing property during closure is stronger.

In some embodiments of the first aspect of the present application,

The elastic modulus of the first conduction part is greater than that of the second conduction part;

Optionally, the first conduction part is made of a rigid material, and the second conduction part is made of a flexible material. The second conduction part is flexible and can deform, and under the action of the fluid, the second conduction part deforms greatly to achieve the opening and closing effect, so that the occupied space is small.

In some embodiments of the first aspect of the present application,

The fluid one-way conduction structure also comprises an adjusting piece;

The regulating member is movably connected with the first section so that a part of the section of the at least one first through hole can be covered by the regulating member. Or

The adjusting piece is movably connected with the second closure body, so that part of the cross section of at least one second through hole can be covered by the adjusting piece.

The adjusting piece can cover a part of the first through hole or a part of the second through hole, and can also cover the whole first through hole or the whole second through hole. The adjusting piece can adjust the flow passing through the first conduction part or the second conduction part.

When the one-way fluid conducting structure is applied to breathing equipment, the regulating part can regulate the size of supplied gas entering the mouth and the nose, for example, all the first through holes are conducted during movement, the air flow is regulated to the maximum, and the regulating part can be regulated to the minimum during sitting and lying, so that the regulation is convenient and the comfort degree is increased.

In some embodiments of the first aspect of the present application,

The adjusting piece can be close to or far away from the first fluid intercepting body, so that the adjusting piece can be abutted against the first fluid intercepting body; or

The regulating member can rotate along the axis of the first cut fluid, so that part of the cross section of the first through hole can be covered by the cut-off area.

The second aspect of the application provides a check assembly, the check assembly comprises a flow guide pipe and a fluid one-way conduction structure provided by the first aspect of the application; the fluid one-way conduction structure is arranged in the flow guide pipe and divides the flow guide pipe into a first cavity and a second cavity; the fluid one-way conduction structure can enable the first cavity and the second cavity to be isolated or conducted.

The check assembly has all the advantages of a one-way fluid conducting structure. The check assembly is used for arranging the fluid one-way conduction structure in the flow guide pipe, so that the fluid one-way conduction structure is convenient to install. For the honeycomb duct with irregular cross section, the fluid one-way conduction structure can be directly installed, and the cutting and the like are not required to be regular, so that the honeycomb duct is more suitable for more application scenes.

in some embodiments of the second aspect of the present application,

The first connecting part is connected with the inner wall of the flow guide pipe in a sealing way.

The fluid one-way conduction structure is convenient to install, when the fluid one-way conduction structure is closed, fluid can be prevented from flowing between the edge of the first fluid-cut and the flow guide pipe, and other parts such as a sealing assembly and the like are omitted.

in some embodiments of the second aspect of the present application,

A sliding rail or a sliding chute with preset length is arranged in the guide pipe; the first fluid intercepting body is fixedly connected with the inner wall of the draft tube, and the second fluid intercepting body is connected with the sliding rail or the sliding groove in a sliding mode.

In some embodiments of the second aspect of the present application,

The honeycomb duct is internally and convexly provided with a limiting block, the first fluid intercepting body is fixedly connected with the honeycomb duct, and the second fluid intercepting body is arranged between the limiting block and the first fluid intercepting body, so that the second fluid intercepting body can slide between the limiting block and the first fluid intercepting body.

When the fluid is reversed to flow, the first cut-off body and the second cut-off body urge the first cut-off body and the second cut-off body to slide relatively by means of the change of the direction of the force applied to the first cut-off body and the second cut-off body by the fluid after the fluid is reversed, so that the purpose that at least part of the first conduction part and at least part of the second conduction part can move relatively is achieved.

In a third aspect of the present application, a check assembly is provided, where the check assembly includes a flow guide pipe and the fluid one-way conduction structure provided in the first aspect of the present application; the honeycomb duct outer wall is seted up the mounting hole that runs through the honeycomb duct, and first section fluid is installed in the mounting hole.

The mounting hole penetrates through the outer wall of the flow guide pipe, and the fluid one-way conduction structure controls whether the inner side and the outer side of the flow guide pipe are communicated or not. Further controlling whether to discharge the fluid inside the draft tube or to prevent the fluid outside the draft tube from flowing into the draft tube.

When the non-return assembly is used for breathing equipment, for example, the non-return assembly is installed in the pipeline of breathing in, and the honeycomb duct is as the pipeline of breathing in, and the one-way conduction structure of fluid is opened during expiration, and the honeycomb duct is discharged the gas of exhalation, and the one-way conduction structure of fluid is closed during inspiration, and external gas only can flow in to the mouth nose through the honeycomb duct.

in some embodiments of the third aspect of the present application,

In a fourth aspect of the present application there is provided a breathing apparatus,

The breathing equipment comprises the check assembly and the breathing isolation hood provided by the third aspect of the application or the second aspect of the application, and one end of the flow guide pipe is connected with the air suction port of the breathing isolation hood.

The non-return assembly is used for the breathing equipment, can avoid exhaled waste gas to be inhaled once more, can also avoid the external air to be inhaled to effectual reduction supply gas is influenced by the mixing of exhaled waste gas or external air, has improved the purity of inhaling supply gas, and then more effectual guarantee breathing equipment's function and effect. The check assembly can be arranged according to the shape and the size of the breathing isolation cover, so that the check assembly is convenient to install and use.

drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic view showing the internal structure of a check assembly provided in embodiment 1 of the present application;

fig. 2 is a schematic diagram illustrating an internal structure of a fluid one-way conduction structure provided in example 1 of the present application in a first state according to a first embodiment;

Fig. 3 is a schematic diagram illustrating an internal structure of a fluid one-way communication structure provided in example 1 of the present application in a second state according to the first embodiment;

Fig. 4 is a schematic structural diagram illustrating another view of the first embodiment of the unidirectional fluid communication structure provided in example 1 of the present application;

Fig. 5 is a schematic diagram illustrating an internal structure of a fluid one-way communication structure provided in example 1 of the present application in a first state according to a second embodiment;

fig. 6 is a schematic diagram illustrating an internal structure of a fluid one-way conduction structure provided in example 1 of the present application in a second state according to a second embodiment;

Fig. 7 is a schematic diagram illustrating an internal structure of a fluid one-way communication structure provided in example 1 of the present application in a first state according to a third embodiment;

Fig. 8 is a schematic diagram illustrating an internal structure of a fluid one-way communication structure provided in example 1 of the present application in a second state according to a third embodiment;

FIG. 9 is a schematic view showing the internal structure of a check assembly provided in embodiment 2 of the present application in a first state;

fig. 10 is a schematic view showing the internal structure of the check assembly provided in embodiment 2 of the present application in the second state.

Fig. 11 is a schematic structural diagram illustrating a first state of a respiratory isolation mask provided in embodiment 3 of the present application.

Fig. 12 is a schematic structural diagram illustrating a second state of the respiratory isolation mask provided in embodiment 3 of the present application.

Icon: 10-a check assembly; 11-a flow guide pipe; 12-a first cavity; 13-a second cavity; 14-mounting holes; 100-fluid one-way conduction structure; 101-a gap; 102-a cavity; 110-first cut-off; 111-a first connection; 112-a first conducting part; 113-a first via; 120-a second cut-off fluid; 121-a second connection; 122-a second conducting part; 123-a second via; 130-an adjustment member; 131-a shifting block; 20-a check assembly; 1000-respiratory mask.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present application, it is to be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, refer to the orientation or positional relationship as shown in the drawings, or as conventionally placed in use of the product of the application, or as conventionally understood by those skilled in the art, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be considered as limiting the present application.

Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

in the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally 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 application can be understood in a specific case by those of ordinary skill in the art.

Example 1

fig. 1 is a schematic view illustrating an internal structure of a check assembly 10 provided in embodiment 1 of the present application, and please refer to fig. 1. The present embodiment provides a check assembly 10, the primary function of the check assembly 10 being to allow one-way passage of fluid or portions of fluid. In the present embodiment, the check assembly 10 is primarily used in a respiratory mask, which in the present embodiment is to be understood in a broad sense including, but not limited to, a mask, a face mask, a respiratory mask, etc. The fluid flowing through the check assembly 10 is a gas, further either inhaled or exhaled by a human or animal.

In other embodiments of the present application, the check assembly 10 may be used in respiratory equipment such as gas masks, respiratory barriers, oxygen breathers, diving gear, etc., and may also be used to make check valves for industrial applications, to be installed in fluid delivery conduits, etc. Accordingly, the fluid flowing through the check assembly 10 may be other gases (e.g., oxygen, nitrogen, carbon dioxide, etc.), and may also be a liquid, a gas-liquid mixture, a gas-solid mixture, etc. The application is not limited to the use of the check assembly 10 and the type of fluid.

The check assembly 10 comprises a guide pipe 11 and a fluid one-way conduction structure 100; the fluid one-way conduction structure 100 is arranged in the draft tube 11, and the draft tube 11 is divided into a first cavity 12 and a second cavity 13 by the fluid one-way conduction structure 100; the fluid one-way conduction structure 100 can isolate or conduct the first cavity 12 and the second cavity 13.

in other words, the fluid one-way conduction structure 100 is disposed in the flow guide tube 11, whether the first cavity 12 and the second cavity 13 are conducted or not is determined by the fluid one-way conduction structure 100, when the fluid one-way conduction structure 100 is opened, the first cavity 12 and the second cavity 13 are conducted, and when the fluid one-way conduction structure 100 is closed, the first cavity 12 and the second cavity 13 are isolated from each other.

In the present application, the shape of the draft tube 11 may be a circular tube, a square tube, a polygonal tube, or any other shape having a cavity.

Several of the various embodiments of the fluid one-way pathway structure 100 provided herein are described below.

Fig. 2 shows an internal structural diagram of the fluid one-way communication structure 100 provided in example 1 of the present application in a first state of the first embodiment, and fig. 3 shows an internal structural diagram of the fluid one-way communication structure 100 provided in example 1 of the present application in a second state of the first embodiment; please refer to fig. 2 and fig. 3.

The fluid one-way conduction structure 100 includes a first fluid cut-off 110 and a second fluid cut-off 120.

The first cut fluid 110 includes a first connection portion 111 and a first conduction portion 112 connected to each other, and the first conduction portion 112 is provided with at least one first through hole 113.

The second fluid intercepting member 120 includes a second connecting portion 121 and a second conduction portion 122 connected to each other, and the second conduction portion 122 is provided with at least one second through hole 123.

In the embodiments of the present application, the first through hole 113 and the second through hole 123 may be of appropriate shapes and sizes.

the first through hole 113 and the second through hole 123 are both capable of allowing fluid to pass therethrough. The first connecting portion 111 and the first conduction portion 112 may be integrally provided, or may be connected to each other by bonding, clamping, or the like. In this embodiment, the first connecting portion 111 is disposed around the first conducting portion 112, the second connecting portion 121 is disposed around the second conducting portion 122, and the fluid cannot flow through the first connecting portion 111 and the second connecting portion 121; under the action of the fluid, the first fluid intercepting body 110 and the second fluid intercepting body 120 are stressed more uniformly. In addition, the first connecting portion 111 and the second connecting portion 121 are respectively disposed around the first conducting portion 112 and the second conducting portion 122, so that the fluid one-way conducting structure 100 is conveniently installed in the flow guide tube 11 without a gap therebetween.

In this embodiment, the non-porous area is disposed around the first conductive portion 112, but in other embodiments of the present application, the non-porous area may not be disposed around the first conductive portion 112, for example, the non-porous area may be located on one side of the first conductive portion 112, or the first conductive portion 112 may be located around the non-porous area. Similarly, the positions of the non-hole region and the second conduction part 122 may be other, and are not described herein again.

The first conducting portion 112 and the second conducting portion 122 are capable of moving relative to each other when the flow of the fluid is reversed, and the first conducting portion 110 and the second conducting portion 120 are independent of each other and cooperate with each other. In other words, when the fluid is flowing in a direction opposite to the direction of flow, the first conduction part 112 and the second conduction part 122 can move relatively, or only a part of the two parts are close to or far away from each other.

Further, when the fluid flows in the forward direction, the first conduction part 112 and the second conduction part 122 have a gap 101 therebetween, and the gap 101 is communicated with the at least one first through hole 113 and the at least one second through hole 123.

As shown in fig. 2, when the fluid flows in the forward direction, the gap 101 is provided between the first conduction part 112 and the second conduction part 122 at a certain distance, and the gap 101 may penetrate the entire first conduction part 112 or may penetrate only a part of the first conduction part 112. The slit 101 communicates with each of the at least one first through-hole 113 and the at least one second through-hole 123, so that fluid can flow through the first through-hole 113, the slit 101, and the second through-hole 123. The first chamber 12 and the second chamber 13 are conducted at this time.

Further, when the fluid flows reversely, all the first through holes 113 are blocked by the second shut-off fluid 120, and/or all the second through holes 123 are blocked by the first shut-off fluid 110.

As shown in fig. 3, when the fluid flows in the reverse direction, the fluid cannot flow through the first and second through holes 113 and 123 at the same time. The first chamber 12 and the second chamber 13 are closed at this time.

Further, when the fluid forward flow is switched to the fluid reverse flow, at least part of the first conduction part 112 and at least part of the second conduction part 122 can move relatively, so that all the first through holes 113 are blocked by the second fluid 120; alternatively, all the second through holes 123 are blocked by the first cutoff fluid 110; or, all the first through holes 113 and all the second through holes 123 are blocked, and at this time, the first cavity 12 and the second cavity 13 are not conducted with each other.

In the embodiment of the present application, the first through hole 113 is provided in the first conducting part 110, the second through hole 123 is provided in the second conducting part 120, and unidirectional conduction is achieved by relative movement between at least part of the first conducting part 112 and at least part of the second conducting part 122.

the fluid one-way conduction structure 100 may be designed into any shape according to the material and shape of the flow guide tube 11, so as to facilitate installation, and the material of the fluid one-way conduction structure 100 may be flexible, rigid, elastic or non-elastic. The fluid one-way conduction structure 100 can be installed on the fluid guide pipe 11 with any shape. The fluid one-way conduction structure 100 can be installed when the intercepting surface of the draft tube 11 is in an irregular shape, and the installation difficulty and the volume of the draft tube 11 cannot be increased.

When fluid one-way conduction structure 100 is applied to respiratory equipment, for example, install when breathing in pipeline or breathing pipeline, the one-way conduction structure 100 of fluid carries out the switching between the breathing, prevent that external unpurified air from being inhaled by the user when breathing in, can discharge exhalation waste gas when exhaling and prevent that the user from inhaling exhaled waste gas once more, thereby effectual reduction supply gas is influenced by the mixture of exhaled waste gas or outside air, improve the purity of inhaling supply gas, and then more effective guarantee respiratory equipment's function and effect.

The shape of the breathing circuit is different, the size is also different, the fluid one-way conduction structure 100 can be suitable for, in addition, the fluid one-way conduction structure 100 can also be installed on the breathing isolation mask body, the shape of the breathing isolation mask body adapts to the shape of the face of a human or an animal, the first fluid intercepting body 110 and the second fluid intercepting body 120 can be set to be suitable shapes, and the installation and the use of the fluid one-way conduction structure 100 cannot be influenced.

In the first embodiment, referring to fig. 3, when the fluid flows in the reverse direction, two opposite surface portions of the first conducting portion 112 and the second conducting portion 122 are attached to each other, a gap may be formed between the rest of the two surface portions, and the gap is not communicated with all of the first through holes 113 and all of the second through holes 123.

In other words, in this embodiment, the fluid flows in the reverse direction to drive the first conduction part 112 and the second conduction part 122 to move relatively, and then only a part of two opposite surfaces of the first conduction part 112 and the second conduction part 122 may be attached to each other, that is, a gap is further provided between the two surfaces, but the gap is not communicated with all of the first through holes 113 and all of the second through holes 123. At this time, the first cavity 12 and the second cavity 13 can be isolated from each other. After the second fluid intercepting member 120 and the first fluid intercepting member 110 are attached to each other, the first through holes 113 and the second through holes 123 are arranged in a mutually staggered manner, and the fluid one-way conduction structure 100 achieves the purpose of non-return.

Because of the relationship between the fluid stress and the shape of the first conduction part 112, the first fluid intercepting member 110 and the second fluid intercepting member 120 may be formed in any shape in the narrow and compact flow guide tube 11, and when the fluid flows in the reverse direction, the two facing surfaces of the first conduction part 112 and the second conduction part 122 may not be completely fitted to each other, but it is sufficient that the first through hole 113 and the second through hole 123 are not conducted to each other.

The first fluid cut-off body 110 and the second fluid cut-off body 120 of this embodiment may be provided according to specific situations, and are not limited to two opposing surfaces of the first fluid cut-off body 110 and the second fluid cut-off body 120 being flat surfaces that can be attached to each other. The fluid one-way communication structure 100 can be applied to the case where there is a large difference between the shapes and the sizes of the first cavity 12 and the second cavity 13.

As mentioned above, when the fluid flows in a reverse direction, at least a portion of the first conduction portion 112 and at least a portion of the second conduction portion 122 can move relatively.

In the present embodiment, when the fluid flows in a reverse direction, the first fluid intercepting member 110 and the second fluid intercepting member 120 can slide relatively, so that the first fluid intercepting member 110 and the second fluid intercepting member 120 can approach or move away from each other, thereby enabling at least part of the first conduction part 112 and at least part of the second conduction part 122 to move relatively.

Further, in the present embodiment, the first fluid intercepting member 110 and the second fluid intercepting member 120 are slidable relative to each other, and at least the following means is provided:

Firstly, the method comprises the following steps: the first intercepting body 110 is provided with a sliding rail or a sliding groove at one side of the second intercepting body 120, and the second intercepting body 120 is slidably connected with the sliding rail or the sliding groove. In other words, in the first embodiment, a slide rail or a chute is provided to the first fluid intercepting member 110.

Secondly, the method comprises the following steps: the first cut-off body 110 is fixedly connected with the draft tube 11, a slide rail or a chute is arranged in the draft tube 11, and the second cut-off body 120 is slidably connected with the slide rail or the chute.

thirdly, the method comprises the following steps: the first intercepting body 110 is fixedly connected with the draft tube 11, a limiting block is convexly arranged inside the draft tube 11, the second intercepting body 120 is arranged between the limiting block and the first intercepting body 110, and the second intercepting body 120 can slide between the limiting block and the first intercepting body 110 under the reversing action of the fluid.

When the fluid is reversed to flow, the first conduction part 112 and the second conduction part 122 can move relatively by the change of the direction of the force applied to the first conduction part 110 and the second conduction part 120 by the fluid after the fluid is reversed, so that the first conduction part and the second conduction part can slide relatively.

fig. 4 is a schematic structural diagram illustrating another view angle of the fluid unidirectional flux structure 100 according to the first embodiment of the present application, please refer to fig. 1, fig. 2, and fig. 4.

In this application, the fluid one-way communication structure 100 further includes an adjusting member 130; the adjusting member 130 is movably connected to the first cutoff member 110 such that a partial section of the at least one first through hole 113 can be covered by the adjusting member 130.

The adjusting member 130 can cover a partial cross section of at least one first through hole 113, and accordingly, the adjusting member 130 can cover a part of the first through hole 113 and can also cover the whole first through hole 113. The adjusting member 130 can adjust the flow rate passing through the first conduction part 112.

When the unidirectional fluid communication structure 100 is applied to a breathing apparatus, the adjusting member 130 can adjust the size of the supplied air entering the mouth and nose, for example, all the first through holes 113 are communicated during movement, the air volume is adjusted to the maximum, and the air volume can be adjusted to be small during sitting and lying, so that the adjustment is convenient, and the comfort degree is increased.

Further, in the present embodiment, the adjuster 130 has at least the following arrangement:

The adjusting member 130 is rotatably connected with the first cut fluid 110 in the fluid flow direction; for example, the adjusting member 130 is configured as a special-shaped member (e.g., crescent), the cross-sectional size of the adjusting member 130 is smaller than that of the first fluid section 110, and after the adjusting member 130 is rotated, the adjusting member 130 can close off a portion of at least one first through hole 113. Or, the adjusting member 130 is provided with a plurality of holes, the plurality of holes are capable of allowing the fluid to flow through, after the adjusting member 130 is rotated, the holes of the adjusting member 130 are communicated with the portion of the at least one first through hole 113, so that the adjusting member 130 can seal the portion of the at least one first through hole 113, and the cross section of the adjusting member 130 can be smaller than or equal to the size of the first cut-off fluid 110.

The adjusting piece 130 is connected with the first fluid intercepting piece 110 in a sliding mode along the flowing direction of the fluid, so that the adjusting piece 130 is attached to the first fluid intercepting piece 110 to achieve the purpose of at least partially blocking one first through hole 113; accordingly, the cross-section of the regulating member 130 may be less than or equal to the size of the first cut fluid 110.

in some embodiments of the present disclosure, a dial 131 may be protruded from the adjusting member 130, the dial 131 extends out of the flow guide tube 11, and the adjusting member 130 and the first intercepting fluid 110 may move relative to each other by dialing the dial 131. The dial 131 can be manually operated or can be moved by a controller.

In the present embodiment, the adjusting member 130 is disposed on a side of the first fluid intercepting member 110 away from the second fluid intercepting member 120. It is understood that, in other embodiments of the present application, the adjusting member 130 may be disposed on a side of the first fluid cut-off body 110 close to the second fluid cut-off body 120.

In addition, in other embodiments of the present application, the adjusting member 130 may also be configured to be movably connected to the second fluid intercepting member 120, and the corresponding connection relationship refers to that the adjusting member 130 is movably connected to the first fluid intercepting member 110.

In other embodiments of the present application, the adjustment member 130 is not necessary, and the adjustment member 130 may not be provided.

Fig. 5 shows an internal structural diagram of a fluid one-way communication structure 100 provided in example 1 of the present application in a first state of a second embodiment, and fig. 6 shows an internal structural diagram of a fluid one-way communication structure 100 provided in example 1 of the present application in a second state of the second embodiment; please refer to fig. 2 to 6.

One of differences between the fluid one-way conduction structure 100 provided in the present embodiment and the fluid one-way conduction structure 100 provided in the first embodiment is a connection relationship between the first fluid cut-off 110 and the second fluid cut-off 120.

In the present embodiment, the first fluid intercepting member 110 and the second fluid intercepting member 120 are connected to each other, and further, in the present embodiment, the first connection portion 111 and the second connection portion 121 are connected to each other, for example, by bonding, clamping, or the like, and the connection portion between the first connection portion 111 and the second connection portion 121 is not conductive.

when the fluid flows in a reverse direction, at least part of the first conduction part 112 and at least part of the second conduction part 122 can move relatively.

The first conduction part 112 and the second conduction part 122 have at least the following embodiments:

Firstly, the method comprises the following steps: the first conduction part 112 and the second conduction part 122 are both made of flexible materials, such as polyethylene, the second conduction part 122 has a surface area larger than that of the first conduction part 112, when the fluid flows in the forward direction, a cavity 102 is formed between the first conduction part 112 and the second conduction part 122 under the action of the fluid, and the first cavity 12 is conducted with the second cavity 13. When the fluid flows in the reverse direction, the second conduction part 122 is attached to the first conduction part 112 by the action of the fluid, the second conduction part 122 blocks all the first through holes 113 of the first conduction part 112, and the first cavity 12 and the second cavity 13 are not conducted with each other.

secondly, the method comprises the following steps: the first conduction part 112 and the second conduction part 122 are both made of elastic materials, and the elastic modulus of the first conduction part 112 is greater than that of the second conduction part 122; when the fluid flows in the forward direction, the first conduction part 112 and the second conduction part 122 are stressed the same, the deformation is different, the deformation of the second conduction part 122 is greater than that of the first conduction part 112, a cavity 102 is formed between the first conduction part 112 and the second conduction part 122, and the first cavity 12 is conducted with the second cavity 13. When the fluid flows in the reverse direction, the first conduction part 112 and the second conduction part 122 are attached to each other by the fluid. The first chamber 12 and the second chamber 13 are not in conduction with each other.

the first conduction part 112 and the second conduction part 122 have elasticity, so that the first conduction part and the second conduction part can be softer, and the comfort of the breathing equipment can be improved when the breathing equipment is used.

in addition, the first cavity 12 and the second cavity 13 may be in any shape, and under the action of the fluid, the first conduction part 112 and the second conduction part 122 both can be deformed to achieve the opening and closing function, and the first conduction part 112 and the second conduction part 122 made of the elastic material are easy to be arranged, so that the occupied space is small.

Thirdly, the method comprises the following steps: the first conduction part 112 is made of a non-elastic material, and the second conduction part 122 is made of an elastic material. When the fluid flows in the forward direction, the second conduction part 122 deforms, the cavity 102 is formed between the first conduction part 112 and the second conduction part 122, and the first cavity 12 is conducted with the second cavity 13. When the fluid flows in the reverse direction, the second conduction part 122 is restored, and the first conduction part 112 and the second conduction part 122 are bonded to each other. The first chamber 12 and the second chamber 13 are not in conduction with each other.

Fourthly: the first conduction part 112 is made of a rigid material, such as stainless steel, aluminum, copper, nickel, plastic, ABS, alloy, medical plastic, carbon fiber, organic glass, ceramic, polyurethane flexible material, etc.; the second conduction part 122 is made of a flexible material, such as a resin film, rubber, fabric coated with an air-impermeable coating, silicone, latex, PVC, thermoplastic rubber, hybrid rubber, TPE material, etc.; when the fluid flows in the forward direction, the second conduction part 122 is away from the first conduction part 112 under the action of the fluid, a cavity 102 is formed between the first conduction part 112 and the second conduction part 122, and as shown in fig. 5, the first cavity 12 is conducted with the second cavity 13. When the fluid flows in the reverse direction, the second conduction part 122 is attached to the first conduction part 112 under the action of the fluid, and as shown in fig. 6, the first cavity 12 and the second cavity 13 are not conducted with each other.

The first conduction part 112 and the second conduction part 122 shown in fig. 5 and fig. 6 are circular and have a relatively regular surface, and in other embodiments, the surfaces of the first conduction part 112 and the second conduction part 122 may be a plane and may be a curved surface.

The fluid one-way conduction structure 100 provided in this embodiment is different from the fluid one-way conduction structure 100 provided in the first embodiment in that the fluid one-way conduction structure 100 is not provided with the adjuster 130 in this embodiment.

In other embodiments of the present application, the fluid one-way conduction structure 100 may have both the structures of the first embodiment and the second embodiment without conflicting with each other, but both are not applicable alternatively, and for example, the sliding connection in the first embodiment and the first conduction part 112 and the second conduction part 122 in the second embodiment may be provided in one fluid one-way conduction structure 100 while having elasticity.

The above is some of the various embodiments of the fluid one-way conduction structure 100 provided in embodiment 1 of the present application.

As mentioned above, the one-way fluid conducting structure 100 is disposed in the fluid guiding tube 11, and in the present embodiment, the first connecting portion 111 is hermetically connected (e.g., bonded, welded, and integrally disposed) with the inner wall of the fluid guiding tube 11, in other words, there is no gap between the edge of the first fluid cutoff member 110 and the fluid guiding tube 11. The fluid one-way conduction structure 100 is convenient to install, when the fluid one-way conduction structure is closed, fluid can be prevented from flowing between the edge of the first fluid cutoff body 110 and the fluid guide pipe 11, and other parts such as a sealing assembly and the like are omitted.

In other embodiments, a sealing ring may be disposed between the first connecting portion 111 and the flow guide tube 11 for sealing connection.

Fig. 7 shows an internal structural diagram of a fluid one-way communication structure 100 provided in example 1 of the present application in a first state of a third embodiment, and fig. 8 shows an internal structural diagram of a fluid one-way communication structure 100 provided in example 1 of the present application in a second state of the third embodiment; please refer to fig. 5 to 8.

One of the differences between the unidirectional fluid communication structure 100 provided in the present embodiment and the unidirectional fluid communication structure 100 provided in the second embodiment is that in the present embodiment, the unidirectional fluid communication structure 100 further includes an adjusting member 130.

In the present embodiment, the adjusting member 130 is movably connected to the second fluid intercepting member 120, for example, slidably connected by a sliding groove, a sliding block, a sliding cover, or the like.

The adjusting member 130 is movably connected to the second closure body 120 such that the adjusting member 130 can block a partial section of the at least one second through-hole 123.

For embodiments in which the adjustment member 130 is provided to be movably connected to the second shut-off body 120:

The adjusting member 130 adjusts the area of the acting force generated by the second conduction part 122 by adjusting the number of the second through holes 123 of the second conduction part 122, so that on one hand, the difficulty of the flow passing through can be adjusted to adjust the flow, and on the other hand, the stress of the second conduction part 122 can be adjusted to adjust the non-return effect.

When the number of the second through holes 123 blocked by the adjusting member 130 is larger, less gas can move at least part of the first conduction part 112 and at least part of the second conduction part 122 relatively, so that the fluid one-way conduction structure 100 is closed, and during the closing process of the fluid one-way conduction structure 100, the amount of gas (for example, unpurified outside air) flowing back from the second through holes 123 is smaller, thereby increasing the non-return effect and reducing the ventilation effect. When the number of the second through holes 123 blocked by the adjusting member 130 is small, more gas is needed to move at least part of the first conduction part 112 and at least part of the second conduction part 122 relatively, so that the fluid one-way conduction structure 100 is closed, and in the closing process of the fluid one-way conduction structure 100, the amount of gas flowing back from the second through holes 123 is large, thereby reducing the non-return effect and increasing the ventilation effect.

Please refer to the second embodiment for other manners of the unidirectional fluid conducting structure 100 provided in this embodiment, which are not described herein.

Please refer to the adjusting member 130 of the first embodiment for the structure of the adjusting member 130 provided in this embodiment, which is not described herein again.

the check assembly 10 provided in embodiment 1 of the present application has at least the following advantages:

the fluid one-way conduction structure 100 can control the conduction and the closing of the first cavity 12 and the second cavity 13. The check assembly 10 has all the advantages of the fluid one-way communication structure 100. The check assembly 10 provided in embodiment 1 disposes the fluid one-way conduction structure 100 inside the draft tube 11, so as to facilitate the installation of the fluid one-way conduction structure 100.

For the honeycomb duct 11 with irregular cross section, the irregular cross section needs to be cut into a plurality of regular cross sections in the prior art, and the valve bodies are installed on the regular cross sections, which inevitably increases the cost and the weight, and the installation process is complicated. In this embodiment, the fluid one-way conduction structure 100 can be directly installed on the flow guide tube 11 with an irregular cross section, and the installation is performed without performing the processes such as cutting and arranging.

Example 2

Fig. 9 shows a schematic internal structure diagram of the check assembly 20 provided in embodiment 2 of the present application in the first state, and fig. 10 shows a schematic internal structure diagram of the check assembly 20 provided in embodiment 2 of the present application in the second state; please refer to fig. 1-10. The present embodiment provides a check assembly 20.

the check assembly 20 provided in embodiment 2 has substantially the same structure as the check assembly 10 provided in embodiment 1, for example, the fluid one-way conduction structure 100, and is not described in detail in embodiment 2.

One of the differences between the check assembly 20 provided in example 2 and the check assembly 10 provided in example 1 is that:

The fluid one-way conduction structure 100 and the draft tube 11 are installed at different positions.

The outer wall of the draft tube 11 is provided with a mounting hole 14 penetrating the draft tube 11, and the first cutoff member 110 is mounted in the mounting hole 14.

The installation hole 14 penetrates through the outer wall of the draft tube 11, and the fluid one-way conduction structure 100 controls whether the inside and the outside of the draft tube 11 are communicated. Further controlling whether to discharge the fluid inside the draft tube 11 or to prevent the fluid outside the draft tube 11 from flowing into the draft tube 11.

When the check assembly 20 is used in a breathing apparatus, for example, the check assembly 20 is installed in an inhalation pipe, the flow guide tube 11 serves as an inhalation pipe, the one-way fluid conducting structure 100 is opened during exhalation, the exhaled gas in the flow guide tube 11 is discharged, the one-way fluid conducting structure 100 is closed during inhalation, and the external gas cannot flow into the mouth and nose through the flow guide tube 11.

in the present embodiment, the fluid one-way conduction structure 100 is disposed inside the draft tube 11, and in the present embodiment, the first connection portion 111 is hermetically connected (for example, bonded, welded, and integrally disposed) with the inner wall of the draft tube 11, in other words, there is no gap between the edge of the first fluid cutoff member 110 and the draft tube 11. The fluid one-way conduction structure 100 is convenient to install, when the fluid one-way conduction structure is closed, fluid can be prevented from flowing between the edge of the first fluid cutoff body 110 and the fluid guide pipe 11, so that fluid leakage is prevented, and other parts such as a sealing assembly are omitted. In other embodiments, a sealing ring may be disposed between the first connecting portion 111 and the flow guide tube 11 for sealing connection.

In example 2, the fluid one-way communication structure 100 is provided in the second embodiment provided in example 1 to be superior to the first embodiment provided in example 1 in terms of reducing the volume of the check assembly 20 and reducing the space occupied thereby.

The first fluid intercepting body 110 and the second fluid intercepting body 120 slide relatively to each other, and a sliding rail, a sliding groove or a limiting block needs to be arranged, and a certain space is needed for the sliding rail, the sliding groove or the limiting block. The first conduction part 112 and the second conduction part 122 are made of elastic materials, or the first conduction part 112 is made of rigid materials, and the second conduction part 122 is made of flexible materials. Space can be saved better.

Example 3

Fig. 11 is a schematic structural diagram illustrating a first state of a respiratory isolation mask 1000 provided in embodiment 3 of the present application; fig. 12 is a schematic structural diagram illustrating a second state of the respiratory isolation mask 1000 provided in embodiment 3 of the present application; please refer to fig. 11 and 12. The present embodiment provides a respiratory isolation mask 1000, wherein the respiratory isolation mask 1000 comprises a mask body, an inhalation tube and the check assembly 20 provided in embodiment 1. The breath shield 1000 is connected to an inhalation tube, and the check assembly 20 is mounted to the inhalation tube (i.e., the delivery tube 11 for delivering supply gas to the breath shield 1000).

Further, the check assembly 20 is installed at one end of the air suction pipe close to the breathing isolation cover 1000 body, so that the volume of the exhaled waste gas entering the air suction pipe can be reduced, the mixing of the waste gas and the supplied gas can be avoided as much as possible, and the waste gas can be prevented from being inhaled when the air suction pipe breathes again.

in the present embodiment, the respiratory isolation cover 1000 comprises two flow guide tubes 11, a plurality of check assemblies 20; each delivery tube 11 is provided with at least one non-return assembly 20 and, correspondingly, the closure body is also provided with one non-return assembly 20.

In other embodiments of the present application, the breath insulation cover 1000 may be provided with only one check assembly 20, for example, the body of the breath insulation cover 1000, and the breath insulation cover 1000 may also be provided with only one delivery tube 11.

Referring to fig. 11 and 12, in fig. 12, the adjusting member 130 moves (e.g., slides or rotates) relative to the flow guide tube 11, so that the adjusting member 130 blocks at least a portion of the at least one first through hole 113 or at least a portion of the at least one second through hole 123 in the check assembly 20; thereby regulating the flow of gas when check assembly 20 is on.

check subassembly 20 is used for breathing cage 1000, can avoid the outside air to be inhaled to effectual reduction supply gas is influenced by mixing of outside air, has improved the purity of inhaling supply gas, and then more effective guarantee respiratory equipment's function and effect. The check assembly 20 may be sized according to the shape of the breathing shield 1000 to facilitate installation and use of the check assembly 20.

Example 4

The present embodiment provides a breathing apparatus comprising a breathing mask 1000 and the check assembly 10 provided in embodiment 1. One of the differences between this embodiment and the respiratory isolation mask 1000 in embodiment 3 is that this embodiment employs the check assembly 10 provided in embodiment 1, and embodiment 3 employs the check assembly 20 provided in embodiment 2.

in this embodiment, the breath isolation cover 1000 is connected to the inhalation tube, and the check assembly 10 is installed on the inhalation tube of the breath isolation cover 1000 (i.e. the pipeline of the breath isolation cover 1000 inhaling the purified air).

In the present embodiment, the respiratory isolation enclosure 1000 includes two draft tubes 11; each draft tube 11 is provided with at least one non-return assembly 10.

In other embodiments of the present application, two fluid conduits 11 may share one check assembly 10, for example, two fluid conduits 11 are connected at an end far from the respiratory shielding enclosure 1000 to form a main conduit, and the check assembly 10 is disposed in the main conduit.

The check assembly 10 is used in a breathing mask 1000 to prevent exhaled exhaust gases from flowing back into the breathing tube and being re-inhaled. The check assembly 10 may be configured to fit within the breathing shield 1000 to facilitate installation and use of the check assembly 10.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The fluid one-way conduction structure is characterized by comprising a first fluid intercepting body and a second fluid intercepting body;

The first fluid-cutting body comprises a first connecting part and a first conducting part which are connected with each other, and the first conducting part is provided with at least one first through hole;

when fluid flows in the forward direction, a gap is formed between the first conduction part and the second conduction part, and the gap is communicated with at least one first through hole and at least one second through hole;

When the fluid flows reversely, all the first through holes are blocked by the second cut-off body, and/or all the second through holes are blocked by the first cut-off body.

2. the structure of claim 1, wherein the fluid is guided in one direction,

When fluid flows reversely, the two opposite surface parts of the first conduction part and the second conduction part are mutually attached, a gap is arranged between the rest parts of the two surfaces, and the gap is not communicated with all the first through holes and all the second through holes.

3. The structure of claim 1, wherein the fluid is guided in one direction,

The first connecting portion is arranged around the first conduction portion, and the second connecting portion is arranged around the second conduction portion.

4. The structure of claim 1, wherein the fluid is guided in one direction,

The first cut-off body and the second cut-off body can slide relatively, and when the fluid flows in a reversing mode, the first conduction part and the second conduction part can be abutted to each other or separated from each other.

5. the structure of claim 1, wherein the fluid is guided in one direction,

when the fluid flows reversely, at least parts of two opposite surfaces of the first conduction part and the second conduction part are attached to each other; the two surfaces are both curved surfaces or both planes.

6. The structure of one-way fluid conduction according to any one of claims 1 to 5, wherein an elastic modulus of the first conduction part is greater than an elastic modulus of the second conduction part.

7. the fluid one-way conduction structure according to claim 6, wherein the first conduction part is made of a rigid material, and the second conduction part is made of a flexible material.

8. The fluid one-way communication structure according to claim 1, further comprising an adjustment member;

The adjusting piece is movably connected with the first through hole, so that part of the cross section of at least one first through hole can be covered by the adjusting piece; or

9. The structure of claim 8, wherein the adjusting member can move toward or away from the first fluid trap, so that the adjusting member can abut against the first fluid trap; or

The adjusting piece can rotate along the axis of the first fluid-intercepting body, so that part of the cross section of the first through hole can be covered by the adjusting piece.

10. a check assembly, wherein the check assembly comprises a flow guide tube and the fluid one-way conduction structure of any one of claims 1 to 9; the fluid one-way conduction structure is arranged in the flow guide pipe and divides the flow guide pipe into a first cavity and a second cavity; the fluid one-way conduction structure can enable the first cavity and the second cavity to be isolated or conducted.

11. The check assembly of claim 10, wherein the first connection sealingly connects with an inner wall of the draft tube.

12. The no-return assembly of claim 10, wherein the flow conduit is internally provided with a sliding track or chute having a preset length; the second fluid intercepting body is connected with the sliding rail or the sliding groove in a sliding mode.

13. The check assembly as claimed in claim 10, wherein a stopper is protruded inside the flow conduit, the first cut fluid is fixedly connected to the flow conduit, and the second cut fluid is disposed between the stopper and the first cut fluid, so that the second cut fluid can slide between the stopper and the first cut fluid.

14. A check assembly, wherein the check assembly comprises a flow guide tube and the fluid one-way conduction structure of any one of claims 1 to 9; the outer wall of the flow guide pipe is provided with a mounting hole penetrating through the flow guide pipe, and the first fluid-intercepting body is mounted in the mounting hole.

15. the check assembly of claim 14, wherein the first connection sealingly connects with an inner wall of the draft tube.

16. A respiratory apparatus comprising the non-return assembly of any one of claims 10 to 15 and a respiratory screen, wherein one end of the flow conduit is connected to the inhalation port of the respiratory screen.