Bypass device and breathing mask comprising bypass device

Abstract

The utility model provides a bypass device and a breathing mask comprising the bypass device. The bypass device comprises a shell assembly, a breathing valve assembly and a switch. The breathing valve assembly and the switch assembly are arranged in the base; the breathing valve assembly comprises a supporting piece, a breathing valve plate, a breathing valve base and a bent shaft piece. The breather valve plate is coaxially arranged on one side of the supporting piece. The breather valve base is arranged on the side, away from the supporting piece, of the breather valve plate and detachably connected with the breather valve base. The fixed end of the bent shaft piece is arranged on the breather valve base, the movable end of the bent shaft piece is arranged on the supporting piece, and the bent shaft piece is used for enabling the breather valve piece and the supporting piece to generate axial relative displacement under the action of the switch to form a ventilation gap. The utility model can be opened as required according to external conditions, and has the advantages of simple structure and convenience in use.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the individual protection equipment technical field especially, it is a kind of bypass device and including breathing mask of bypass device. BACKGROUND

[0002] In the process of forest fire, the existing respirator breathing mask mostly adopts to wear filter tank to filter the dust and flue gas generated by combustion, not only the breathing resistance is big, and when the environment is more severe, the channel connected with outside cannot be closed, so that the outside flue gas etc. enter breathing mask, cause harm to firemen.

[0003] Therefore, a bypass device for breathing mask, which can be opened as needed according to the external situation, is urgently needed. SUMMARY

[0004] In order to solve the problems of the prior art, the utility model provides a bypass device and a breathing mask comprising the bypass device, which can at least solve one technical problem in the prior art.

[0005] The technical scheme adopted by the utility model to solve the above technical problems is:

[0006] A bypass device comprises:

[0007] A housing assembly;

[0008] A breathing valve assembly is arranged in the housing assembly;

[0009] A switch is movably connected with the breathing valve assembly, and is used to drive the breathing valve assembly to move along the axial direction of the housing assembly, so as to control the opening or closing of the airflow in the housing assembly.

[0010] The housing assembly comprises:

[0011] A base;

[0012] An outer shell is detachably connected with the base;

[0013] The breathing valve assembly and the switch assembly are arranged in the base.

[0014] The breathing valve assembly comprises:

[0015] A support is arranged in the base of the housing assembly;

[0016] A breathing valve plate is coaxially arranged on one side of the support;

[0017] A breathing valve base is arranged on the side of the breathing valve plate away from the support, and is detachably connected with the breathing valve base;

[0018] A bending shaft is arranged on the breathing valve base with a fixed end and a movable end arranged on the support, and is used to generate axial relative displacement between the breathing valve plate and the support under the action of the switch to form a ventilation gap.

[0019] The bending shaft comprises:

[0020] A first part;

[0021] A door-shaped part connected to one end of the first part;

[0022] A second part connected to the other end of the door-shaped part;

[0023] The first part, the door-shaped part and the second part are in the same plane.

[0024] The support comprises:

[0025] A support body arranged in the base;

[0026] At least one limiting protrusion arranged on the side of the support body facing the breathing valve plate, and used to limit the breathing valve plate;

[0027] A fixed column arranged on the support body and on the same side as the limiting protrusion;

[0028] The fixed column is provided with a groove used to cooperate with the door-shaped part of the bending shaft.

[0029] The breathing valve base comprises:

[0030] A breathing valve base body arranged on one side of the breathing valve plate and used to arrange the breathing valve plate;

[0031] An extension arranged in the circumferential direction of the breathing valve base body;

[0032] The extension is provided with a shaft hole used to arrange the end of the first part and the second part of the bending shaft respectively;

[0033] The extension is connected to the switch.

[0034] The breathing valve assembly further comprises a reset member.

[0035] The reset member is arranged between the breathing valve base and the outer shell of the shell assembly.

[0036] The breathing valve plate comprises:

[0037] A breathing valve plate body arranged on the support;

[0038] A cap-shaped protrusion is arranged at the axial center of the breathing valve piece body and is matched and connected with the through hole arranged at the middle part of the breathing valve base.

[0039] The bypass device further comprises a filtering assembly.

[0040] The filtering assembly comprises:

[0041] A filtering piece is detachably connected with the base in the shell assembly.

[0042] A sealing piece is arranged between the filtering piece and the support in the breathing valve assembly, and the sealing piece is arranged at the opposite side of the breathing valve piece in the breathing valve assembly.

[0043] A breathing mask comprises:

[0044] The bypass device as described above.

[0045] The breathing mask has the advantages that:

[0046] The bypass device comprises a breathing valve base, a support, a breathing valve piece, a shell assembly, a filtering assembly, a sealing piece, a switch and a curved shaft piece. BRIEF DESCRIPTION OF DRAWINGS

[0047] Figure 1 FIG. 1 is a structural schematic view of the bypass device;

[0048] Figure 2 FIG. 2 is a front view of the base in FIG. 1; Figure 1

[0049] Figure 3 FIG. 4 is a view in A-A direction in FIG. 3; Figure 2

[0050] Figure 4 FIG. 6 is a schematic view of the curved shaft piece in FIG. 5; Figure 1

[0051] Figure 5 FIG. 8 is a front view of the support in FIG. 7; Figure 1

[0052] Figure 6 FIG. 10 is a rear view of FIG. 9; Figure 5 The bypass device has the functions of free opening and closing and can be opened according to the external situation as needed, and has the advantages of simple structure and convenient use.​​​​

[0053] Figure 7 for Figure 6 BB view;

[0054] Figure 8 for Figure 1 Front view of the breather valve base;

[0055] Figure 9 for Figure 8 CC view in the middle;

[0056] Figure 10 for Figure 1 Front view of the breathing valve plate in the middle;

[0057] Figure 11 for Figure 10 DD view.

[0058] exist Figures 1-11 middle:

[0059] 1. Base; 2. Filter element; 3. Seal; 4. Support element; 5. Breathing valve plate; 6. Breathing valve base; 7. Bending shaft; 8. Switch; 9. Housing; 10. Reset element; 401. Support body; 402. Limiting protrusion; 403. Fixing post; 501. Breathing valve plate body; 502. Cap-shaped protrusion; 601. Breathing valve base body; 602. Extension; 701. First part; 702. Door-shaped part; 703. Second part; 1A. Gourd hole; 2A. Fixing hole; 4A. Snapping protrusion; 6A. Through hole; 403A. Groove; 602A. Shaft hole. Detailed Implementation

[0060] Various embodiments of the present invention will be described more fully below. The present invention may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit the various embodiments of the present invention to the specific embodiments thereof, but rather the present invention should be understood to cover all adjustments, equivalents, and / or alternatives falling within the spirit and scope of the various embodiments thereof.

[0061] Hereinafter, the term "include" or "may include" used in various embodiments of the present disclosure indicates existence of a function, operation, or a constituent element of the present disclosure and does not limit one or more functions, operations, or constituent elements to be added. Also, the term "include", "have", and their conjugates as used in various embodiments of the present disclosure, are merely intended to denote a specific characteristic, number, step, operation, constituent element, component, or a combination of the foregoing, and should not be construed as excluding the existence or a possibility of adding one or more other characteristics, numbers, steps, operations, constituent elements, components, or combinations thereof.

[0062] In various embodiments of the present disclosure, the expression "or" or "at least one of A or / and B" includes any combination of the listed terms or all the terms. For example, the expression "A or B" or "at least one of A or / and B" can include A, can include B, or can include both A and B.

[0063] The expressions (such as "first", "second", etc.) used in various embodiments of the present disclosure can modify various constituent elements in various embodiments, but can not limit the corresponding constituent elements. For example, the above expressions do not limit the order and / or importance of the elements. The above expressions are used merely for the purpose of distinguishing a constituent element from other constituent elements. For example, a first user device and a second user device indicate different user devices, although both are user devices. For example, a first element can be referred to as a second element, and similarly, a second element can be referred to as a first element without departing from the scope of various embodiments of the present disclosure.

[0064] It should be noted that if a constituent element is described as being "connected" to another constituent element, the first constituent element can be directly connected to the second constituent element, and a third constituent element can be "connected" between the first constituent element and the second constituent element. Conversely, when a constituent element is "directly connected" to another constituent element, it can be understood that there is no third constituent element between the first constituent element and the second constituent element.

[0065] The term "user" used in various embodiments of the present disclosure can indicate a person using an electronic device or a device (for example, an artificial intelligence electronic device) using an electronic device.

[0066] The terms used in the various embodiments of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the various embodiments of the present utility model. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of the present utility model belong. The terms (such as those defined in a commonly used dictionary) will be interpreted as having the same meaning as the contextual meaning in the relevant technical field and will not be interpreted as having an idealized or overly formal meaning, unless clearly defined in the various embodiments of the present utility model. Specific embodiment 1:

[0068] The present utility model provides a kind of embodiment:

[0069] As Figure 1 A bypass device, comprising: a housing assembly, a breather valve assembly and a switch 8;Wherein, the breather valve assembly is arranged in the housing assembly;Switch 8 is movably connected with the breather valve assembly, for driving the breather valve assembly moves along the axial direction of the housing assembly, to control the opening or closing of airflow in the housing assembly.

[0070] In an embodiment, the housing assembly comprises: base 1, shell 9;Wherein, shell 9 is detachably connected with the base 1;The breather valve assembly, switch assembly are all arranged in the base 1.

[0071] Specifically, as Figures 2-3 Threaded hole is provided on the base 1 with column 1B;Screw hole is provided on the shell 9, and base 1 and shell 9 are fixed together by bolt.

[0072] In an embodiment, the breather valve assembly comprises: support 4, breather valve sheet 5, breather valve base 6 and curved shaft 7;Wherein, support 4 is arranged in the base 1 in the housing assembly;Breather valve sheet 5 is coaxially arranged on one side of the support 4;Breather valve base 6 is arranged on the side of the breather valve sheet 5 away from the support 4, and is detachably connected with the breather valve base 6;Curved shaft 7, its fixed end is arranged on the breather valve base 6, and its movable end is arranged on the support 4, for generating axial relative displacement between the breather valve sheet 5 and the support 4 under the action of the switch 8, to form ventilation gap.

[0073] Preferably, as Figure 4The bending shaft 7 comprises a first part 701, a door-shaped part 702 and a second part 703. One end of the door-shaped part 702 is connected with the first part 701. The second part 703 is connected with the other end of the door-shaped part 702. The first part 701, the door-shaped part 702 and the second part 703 are in the same plane. In use, the door-shaped part 702 rotates around the first part 701 and the second part 703. Due to the certain height of the door-shaped part 702, the axial relative displacement between the breathing valve plate 5 and the support 4 is generated, and the ventilation gap is formed.

[0074] Specifically, as shown in Figures 5-7 The support 4 comprises a support body 401, three limiting protrusions 402 and a fixing column 403. The support body 401 is arranged in the base 1. The limiting protrusions 402 are arranged on the side of the support body 401 facing the breathing valve plate 5, and are used for limiting the breathing valve plate 5. The fixing column 403 is arranged on the support body 401 and is arranged on the same side as the limiting protrusions 402. In order to facilitate the installation of the bending shaft 7, a groove 403A for cooperating with the door-shaped part 702 of the bending shaft 7 is arranged on the fixing column 403.

[0075] As shown in Figures 8-9 The breathing valve base 6 comprises a breathing valve base body 601 and an extension 602. The breathing valve base body 601 is arranged on one side of the breathing valve plate 5 and is used for arranging the breathing valve plate 5. The extension 602 is arranged in the circumferential direction of the breathing valve base body 601. An axle hole 602A is arranged on the extension 602 and is used for arranging the end of the first part 701 and the second part 703 of the bending shaft 7. The extension 602 is connected with the switch 8. The size of the breathing valve plate 5 corresponds to the breathing valve base body 601, so that the ventilation hole on the breathing valve base body 601 can be closed.

[0076] In use, in order to facilitate the movement of the switch 8, the breathing valve assembly further comprises a reset member 10. The reset member 10, such as a spring, is arranged between the breathing valve base 6 and the outer shell 9 in the shell assembly, and is used for resetting the breathing valve base 6, so that the breathing valve assembly is in a closed state in a normal state.

[0077] Preferably, as shown in Figures 10-11 The breathing valve plate 5 comprises a breathing valve plate body 501 and a cap-shaped protrusion 502. The breathing valve plate body 501 is arranged on the support 4. The cap-shaped protrusion 502 is arranged on the shaft center of the breathing valve plate body 501 and forms a buckling structure with the through hole 6A arranged in the middle of the breathing valve base 6, so that the breathing valve plate 5 and the breathing valve base 6 become an integral whole.

[0078] In order to filter the airflow into the shell assembly, the bypass device further comprises a filter assembly; the filter assembly comprises a filter 2 and a sealing member 3; wherein the filter 2 is connected with the base 1 in the shell assembly through a snap-fit mechanism; the sealing member 3 is arranged between the filter 2 and the support 4 in the breathing valve assembly, and the sealing member 3 is arranged on the opposite side of the breathing valve disc 5 in the breathing valve assembly. Figure 1

[0079] Preferably, the periphery of the filter 2 is provided with a plurality of fixing holes 2A; the periphery of the side of the support 4 away from the breathing valve base 6 is provided with a plurality of uniformly distributed snap-fit protrusions 4A; the filter 2 is arranged on the support 4 through the snap-fit protrusions 4A; the snap-fit protrusions 4A are in a cap-shaped structure, facilitating the installation of the filter 2; the base 1 is provided with a plurality of gourd-shaped holes 1A corresponding in number to the snap-fit protrusions 4A; the cap end of the snap-fit protrusion 4A has a diameter greater than the smaller hole diameter of the gourd-shaped hole 1A and less than the larger hole diameter of the gourd-shaped hole 1A; in use, the filter 2 is first fixed, and then the combination of the filter 2 and the support 4 is installed through the snap-fit protrusions 4A corresponding to the larger hole diameter end of the gourd-shaped hole 1A, and then the support 4 is rotated to make the snap-fit protrusions 4A cooperate with the smaller hole diameter of the gourd-shaped hole 1A, thereby completing the installation of the combination of the filter 2 and the support 4; through this structure, the replacement of the filter 2 is very convenient. Figure 2 Figure 7 Meanwhile, in specific use, the back recess of the switch 8 matches the arc-shaped protrusion of the base 1, facilitating the combination of the switch 8 and the base 1; in addition, a limiting groove can be arranged below the back side of the switch 8 to limit the stroke of the movement of the switch 8, and when the switch 8 moves, the sharp end above the switch 8 limits the two ends of the switch 8 to prevent the axial shaking of the switch 8.

[0080] Figure 9 Specific embodiment 2:

[0082] The present disclosure provides an embodiment:

[0083] A breathing mask comprises the bypass device and the breathing mask body as described in the specific embodiment 1; the bypass device is arranged on the breathing mask body; when the breathing mask body can communicate with the external environment, the user can make the breathing valve disc 5 move axially by the axial movement of the switch 8, so as to directly breathe through the external environment air; when the external environment is seriously polluted, the user can close the air bypass device and switch to the gas cylinder air supply mode to protect the personal safety of the user.

[0084] ​​​​The above-mentioned utility model is only several specific implementation scenarios of the utility model, but the utility model is not limited to this, and any change that can be thought of by any person skilled in the art should fall within the protection scope of the utility model. The above-mentioned utility model serial number is only for description, and does not represent the advantages and disadvantages of the implementation scenarios.

Claims

1. A bypass device, characterized in that The bypass device comprises: a shell assembly; a breathing valve assembly arranged in the shell assembly; a switch movably connected with the breathing valve assembly, used to drive the breathing valve assembly to move along the axial direction of the shell assembly, so as to control the opening or closing of the air flow in the shell assembly.

2. The bypass device of claim 1, wherein The shell assembly comprises: a base; a shell detachably connected with the base; the breathing valve assembly and the switch assembly are arranged in the base.

3. The bypass device of claim 1, wherein The breathing valve assembly comprises: a support arranged in the base of the shell assembly; a breathing valve disc coaxially arranged on one side of the support; a breathing valve base arranged on the side of the breathing valve disc away from the support, and detachably connected with the breathing valve base; a curved shaft arranged with a fixed end on the breathing valve base and an active end on the support, used to cause the axial relative displacement between the breathing valve disc and the support under the action of the switch, so as to form an air gap.

4. The bypass device of claim 3, wherein The curved shaft comprises: a first part; a door-shaped part connected with one end of the first part; a second part connected with the other end of the door-shaped part; the first part, the door-shaped part and the second part are in the same plane.

5. The bypass device of claim 3, wherein The support comprises: a support body arranged in the base; at least one limiting protrusion arranged on the side of the support body facing the breathing valve disc, used to limit the breathing valve disc; a fixed column arranged on the support body and on the same side as the limiting protrusion; a groove is arranged on the fixed column, used to cooperate with the door-shaped part of the curved shaft.

6. The bypass device of claim 3, wherein The breathing valve base comprises: a breathing valve base body arranged on one side of the breathing valve disc, used to arrange the breathing valve disc; an extension arranged in the circumferential direction of the breathing valve base body; an axle hole is arranged on the extension, used to arrange the end of the first part and the second part of the curved shaft respectively; the extension is connected with the switch.

7. The bypass device of claim 3, wherein The breathing valve assembly further comprises a reset member; the reset member is arranged between the breathing valve base and the shell of the shell assembly.

8. The bypass device of claim 3, wherein, The breathing valve disc comprises: a breathing valve disc body arranged on the support; a cap-shaped protrusion arranged on the axial center of the breathing valve disc body, and matched with the through hole arranged in the middle of the breathing valve base.

9. The bypass device of claim 1, wherein The bypass device further comprises: a filter assembly; the filter assembly comprises: a filter detachably connected with the base of the shell assembly; a sealing member arranged between the filter and the support of the breathing valve assembly, and arranged on the opposite side of the breathing valve disc of the breathing valve assembly.

10. A respiratory mask characterized by, The bypass device comprises: a mask body; the bypass device according to any one of claims 1-9 is arranged on the mask body.

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