Adjustable one-way valve with indication function and breathing mask with adjustable one-way valve

Abstract

The utility model discloses an adjustable one-way valve with an indication function and a breathing mask adopting the adjustable one-way valve. An adjustable one-way valve with an indication function comprises a one-way valve body provided with an air vent, a blocking valve plate used for blocking the air vent and a pressure adjusting piece, the outer wall of the pressure adjusting piece is in threaded connection with the one-way valve body, a spring is arranged between the pressure adjusting piece and the blocking valve plate in a clamped mode, and the pressure adjusting piece and the blocking valve plate are in threaded connection. The spring is located in the one-way valve body. The pressure adjusting piece is a transparent visible ventilation structure which is ventilated in the axial direction, and an indicating ball is movably connected into the transparent visible ventilation structure. The one-way valve further comprises a limiting cover plate, the limiting cover plate is connected with the one-way valve body in an interference fit mode, and the center of the limiting cover plate is provided with an exposure opening for partially exposing the pressure adjusting piece. The indicating ball is movably connected in the transparent visible ventilation structure, and the ventilation condition of the one-way valve is known by judging whether the indicating ball moves in the transparent visible ventilation structure or not.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical technical field, concretely relates to one -way valve and its breathing mask. BACKGROUND

[0002] One -way valve is a kind of valve body of control gas flow. The existing one -way valve can only simply control the flow or not of gas, cannot realize the intuitive indication of one -way valve ventilation, cannot intuitively obtain the working state of one -way valve.

[0003] Currently, one -way valve is added on breathing mask (such as the exhalation valve in the controllable pressure breathing mask device disclosed in the publication No. CN113521474A), one -way exhaust is carried out, but the working state of one -way valve cannot be realized, which is not conducive to the intuitive viewing of patient's breathing condition. UTILITY MODEL CONTENT

[0004] In view of the problems existing in the prior art, the utility model provides a one -way valve with indication function and breathing mask using same, to solve the above at least one technical problem.

[0005] The technical scheme of the utility model is: a one -way valve with indication function, including a one -way valve body, the one -way valve body is provided with a ventilation opening, further including a blocking valve piece for blocking the ventilation opening, characterized by further including a pressure regulating member, the outer wall of the pressure regulating member is threadedly connected with the one -way valve body, a spring is clamped between the pressure regulating member and the blocking valve piece, and the spring is located in the one -way valve body.

[0006] The pressure regulating member is a transparent visible ventilation structure with axial ventilation, and an indicating ball is movably connected in the transparent visible ventilation structure.

[0007] Further including a limiting cover plate for limiting the rotation angle of the pressure regulating member, the limiting cover plate is connected with the one -way valve body in interference fit, and the central part of the limiting cover plate is provided with an exposed opening for the partial exposure of the pressure regulating member.

[0008] The utility model optimizes the structure of one -way valve, adjusts the spring force between the blocking valve piece and the pressure regulating member by the rotation of the pressure regulating member, adjusts the opening pressure of one -way valve, and the indicating ball is movably connected in the transparent visible ventilation structure, so that the ventilation condition of one -way valve can be known by whether the indicating ball moves in the transparent visible ventilation structure.

[0009] Further preferably, the pressure regulating member includes a detachably connected adjusting sleeve body and an adjusting cover plate, and the adjusting sleeve body and the adjusting cover plate are connected to form the transparent visible ventilation structure.

[0010] Further preferably, the adjusting sleeve body comprises an air cylinder which is axially open, and an outer wall of the air cylinder is provided with external threads for threadedly connecting the one-way valve body;

[0011] One end of the air cylinder is fixedly connected with a gas-permeable stop portion for preventing the indicating ball from falling out, and the other end of the air cylinder is detachably connected with the adjusting cover plate.

[0012] The adjusting cover plate is provided with a gas-permeable hole.

[0013] Further preferably, one side of the adjusting sleeve body axially adjacent to the spring is provided with an annular limiting groove for embedding the spring.

[0014] Further preferably, the adjusting cover plate is provided with a mounting cylinder portion, and opposite sides of the mounting cylinder portion are provided with spherical protrusions.

[0015] An inner wall of the air cylinder is provided with a guide groove for guiding axial movement of the spherical protrusions and a limiting groove for embedding the spherical protrusions.

[0016] Further preferably, an outer side of the limiting groove is in abutment with the outer wall of the air cylinder.

[0017] The mounting cylinder portion is provided with a circumferentially arranged strip-shaped notch, and a length direction of the strip-shaped notch is parallel to an axial direction of the adjusting cover plate.

[0018] Further preferably, a gap exists between the guide groove and the limiting groove.

[0019] Further preferably, the limiting cover plate comprises a sleeve, and one end of the sleeve away from the one-way valve body is provided with an internally extending extension ring, and an inner hole of the extension ring is the exposed opening.

[0020] The extension ring is connected with a mirror-symmetric inwardly extending limiting boss.

[0021] An outer wall of the pressure adjusting member is provided with a limiting portion for abutting against the limiting boss.

[0022] Further preferably, the indicating ball is a plastic ball.

[0023] A breathing mask comprises a mask body, and further comprises the adjustable one-way valve with an indicating function, and the one-way valve body is mounted on the mask body.

[0024] Compared with the prior art, the breathing mask has the following beneficial effects:

[0025] The utility model discloses a structure of one -way valve is optimized, through the rotation of pressure regulating spare, adjust the spring elasticity between the plugging valve piece and pressure regulating spare, adjust one -way valve opening pressure, through being provided with transparent visible aeration structure on pressure regulating spare, the movable coupling of indicating ball has in transparent visible aeration structure, through indicating ball whether movement in transparent visible aeration structure knows the aeration situation of one -way valve.

[0026] The utility model discloses through install on breathing mask, it is convenient for to observe the exhalation of patient. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a structure schematic diagram of the utility model embodiment 1;

[0028] Figure 2 It is a structure schematic diagram of the utility model embodiment 1 another view angle;

[0029] Figure 3 It is an explosion exploded view of the utility model embodiment 1;

[0030] Figure 4 It is an explosion exploded view of the utility model embodiment 1;

[0031] Figure 5 It is a structure schematic diagram of the breathing mask of the utility model embodiment 1.

[0032] In the drawing, 1 is one -way valve body, 2 is plugging valve piece, 3 is pressure regulating spare, 4 is spring, 5 is indicating ball, 6 is limit cover, 7 is cover, 8 is sealing ring, 31 is adjusting cover, 32 is adjusting cover, 33 is limit portion, 61 is limit boss. DETAILED DESCRIPTION

[0033] See Figures 1 to 5The utility model discloses a kind of adjustable check valves with indicating function, including a check valve body 1, check valve body 1 is opened with vent, further including the obturator valve piece 2 for plugging vent, further including a pressure regulating member 3, the outer wall of pressure regulating member 3 is threadedly connected with check valve body 1, spring 4 is clamped between pressure regulating member 3 and obturator valve piece 2, and spring 4 is located in check valve body 1;Pressure regulating member 3 is a transparent visual vent structure vented in axial direction, and a indicating ball 5 is movably connected in transparent visual vent structure;Further including a limiting cover plate 6 for limiting the rotation angle of the pressure regulating member 3, and the limiting cover plate 6 is connected with check valve body 1 with interference fit, and the central part of the limiting cover plate 6 is provided with the exposed mouth of the partial exposure of pressure regulating member 3.The utility model discloses the structure of check valve is optimized, the elasticity of spring 4 between obturator valve piece 2 and pressure regulating member 3 is adjusted by the rotation of pressure regulating member 3, check valve opening pressure is adjusted, indicating ball 5 is movably connected in transparent visual vent structure, and the venting condition of check valve is known by whether indicating ball 5 moves in transparent visual vent structure or not.Obturator valve piece is metal sheet.

[0034] The inner diameter of the inner hole of the transparent visual vent structure is greater than the outer diameter of the indicating ball and less than 2 times the outer diameter of the indicating ball.

[0035] The length of the area of the pressure regulating member exposed to the limiting cover plate is greater than the outer diameter of the indicating ball.

[0036] The check valve body is sequentially provided with an air inlet portion, an obturator valve piece movable portion and a limiting portion along the axial direction. The inner side of the limiting portion is threadedly connected with the pressure regulating member, and the outer side of the limiting portion is connected with the limiting cover plate with interference fit. The air inlet portion is provided with an air port, and the side of the air inlet portion adjacent to the obturator valve piece movable portion is provided with an annular recess for embedding a sealing ring 9.

[0037] The pressure regulating member 3 comprises a detachably connected adjusting sleeve body 31 and an adjusting cover plate 32, and the adjusting sleeve body 31 and the adjusting cover plate 32 are connected to form the transparent visual vent structure.

[0038] The adjusting sleeve body 31 comprises an air cylinder vented in the axial direction, and the outer wall of the air cylinder is provided with external threads for threadedly connecting with the check valve body 1. One end of the air cylinder is fixedly connected with an air vent blocking portion for preventing the indicating ball 5 from falling out, and the other end of the air cylinder is detachably connected with the adjusting cover plate 32. The adjusting cover plate 32 is provided with an air vent hole.

[0039] The side of the adjusting sleeve body 31 adjacent to the spring 4 is provided with an annular limiting groove for embedding the spring 4, and the limiting groove is located on the outer side of the air vent blocking portion.

[0040] The adjusting cover plate 32 is provided with a mounting cylinder portion, opposite sides of the mounting cylinder portion are provided with spherical protrusions; an inner wall of the air passage cylinder is provided with a guide groove for guiding axial movement of the spherical protrusions and a limiting groove for embedding the spherical protrusions. The outer side of the limiting groove is in abutment with the outer wall of the air passage cylinder. The mounting cylinder portion is provided with a circumferentially arranged strip-shaped notch, a length direction of the strip-shaped notch is parallel to an axial direction of the adjusting cover plate 32. There is a gap between the guide groove and the limiting groove.

[0041] The limiting cover plate 6 comprises a sleeve, an inner extending extension ring is arranged at one end of the sleeve away from the one-way valve body 1, an inner hole of the extension ring is an exposed opening; the extension ring is connected with a mirror image inward extending limiting boss 61; an outer wall of the pressure adjusting member 3 is provided with a limiting portion 33 for abutting against the limiting boss. One side of the limiting boss in a circumferential direction is in abutment with the limiting portion. The indicating ball 5 is a plastic ball.

[0042] A breathing mask, comprising a mask body 7, characterized in that further comprising an adjustable one-way valve with an indicating function, the one-way valve body 1 is installed on the mask body 7.

[0043] The above is only the preferred embodiment of the present application, it should be pointed out that, for ordinary skilled in the art, without departing from the principles of the present application, under the premise of can make a number of improvements and refinements, these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. An adjustable one-way valve with an indicating function, comprising a one-way valve body, wherein the one-way valve body has a vent, and further comprising a blocking valve plate for blocking the vent, characterized in that, It also includes a pressure regulating component, the outer wall of which is threadedly connected to the one-way valve body, and a spring is sandwiched between the pressure regulating component and the blocking valve plate, with the spring located inside the one-way valve body; The pressure regulating component is a transparent and visible ventilation structure with axial upward ventilation, and an indicator ball is movably connected inside the transparent and visible ventilation structure; It also includes a limiting cover plate for limiting the rotation angle of the pressure regulating component. The limiting cover plate is interference-fitted with the one-way valve body, and the limiting cover plate has an exposed opening in the center where the pressure regulating component is partially exposed.

2. An adjustable check valve with an indicating function according to claim 1, characterized in that: The pressure regulating component includes a detachably connected regulating sleeve and a regulating cover plate, wherein the regulating sleeve and the regulating cover plate are connected to form the transparent and visible ventilation structure.

3. An adjustable check valve with an indicating function according to claim 2, characterized in that: The adjusting sleeve includes an axially conductive vent cylinder, and the outer wall of the vent cylinder is provided with an external thread that is threaded to the one-way valve body. One end of the ventilator is fixedly connected to a ventilated baffle to prevent the indicator ball from falling out, and the other end of the ventilator is detachably connected to the adjusting cover plate; The adjusting cover plate has ventilation holes.

4. An adjustable check valve with an indicating function according to claim 3, characterized in that: The adjusting sleeve has an annular limiting groove embedded in the spring on the side adjacent to the spring in the axial direction, and the limiting groove is located on the outside of the venting baffle.

5. An adjustable check valve with an indicating function according to claim 3, characterized in that: The adjusting cover plate is provided with a mounting cylinder, and a spherical protrusion is provided on the opposite side of the mounting cylinder; The inner wall of the ventilator is provided with a guide groove for guiding the axial movement of the spherical protrusion and a limiting groove for embedding the spherical protrusion.

6. An adjustable check valve with an indicating function according to claim 5, characterized in that: The outer side of the limiting groove is connected to the outer wall of the ventilator; The mounting cylinder has a circumferentially arranged strip-shaped notch, the length of which is parallel to the axial direction of the adjusting cover plate.

7. An adjustable check valve with an indicating function according to claim 5, characterized in that: There is a gap between the guide groove and the limiting groove.

8. An adjustable check valve with an indicating function according to claim 1, characterized in that: The limiting cover plate includes a sleeve, and an inner extending ring is provided at one end of the sleeve away from the one-way valve body. The inner hole of the extending ring is the exposed opening. The extension ring is connected to a limiting boss that extends inward in a mirror image. The outer wall of the pressure regulating component is provided with a limiting part for abutting against the limiting boss.

9. An adjustable check valve with an indicating function according to claim 1, characterized in that: The indicator ball is a plastic ball.

10. A breathing mask, comprising a mask body, characterized in that, It also includes an adjustable one-way valve with an indication function as described in any one of claims 1 to 9, wherein the one-way valve body is mounted on the cover.

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