Inflation regulating valve and ventilation gas mask

Abstract

The inflation adjusting valve comprises a valve body, an adjusting knob, an air inlet pipe, an air outlet pipe and a belt gland, the valve body is provided with a first end and a second end which are oppositely arranged, the first end is arranged towards one side of the outside of a human body, and the second end is arranged towards one side of the human body; the adjusting knob is mounted at the first end, and the belt gland is arranged at the second end; the valve body comprises an air inlet and an air outlet, one end of the air inlet pipe is connected to the air inlet, one end of the air outlet pipe is connected to the air outlet, and the air inlet pipe and the air outlet pipe are both located on the same side of the belt gland. The comfort level of a wearer can be improved.

Description

Technical Field

[0001] This utility model relates to the field of ventilation mask technology in workpiece scenarios with polluted environment, and particularly to an inflation regulating valve and a ventilation mask using the inflation regulating valve. Background Technology

[0002] Wearing a ventilated face mask is an important protective measure in areas where radioactive aerosol contamination may occur. The ventilated face mask is equipped with an inflation regulating valve (such as...). Figure 1 As shown, the inflation regulating valve is used to adjust the airflow of the ventilated mask to ensure the user has sufficient air for breathing. The inflation regulating valve has an inlet and an outlet, with the inlet and outlet pipes located on opposite sides of the belt. The inflation regulating valve is typically positioned directly opposite the user's waist, and the outlet pipe is positioned directly opposite the lumbar spine. This structure causes the outlet pipe to press against the lumbar spine when worn, and because the outlet pipe is a protruding structure, it makes the wearer extremely uncomfortable, severely impacting comfort and consequently affecting work efficiency and accuracy.

[0003] Therefore, designing an inflation regulating valve that does not affect the wearing experience is of great significance. Utility Model Content

[0004] This invention provides an inflation regulating valve and a ventilated face mask, designed to improve the comfort of the wearer of the ventilated face mask.

[0005] According to a first aspect provided in the embodiments of this application, an inflation regulating valve is provided, comprising: a valve body, an adjusting knob, an air inlet pipe, an air outlet pipe, and a belt cover. The valve body has a first end and a second end disposed opposite to each other, the first end being disposed facing the outside of the human body, and the second end being disposed facing the human body. The adjusting knob is mounted on the first end, and the belt cover is disposed on the second end. The valve body includes an air inlet and an air outlet, one end of the air inlet pipe is connected to the air inlet, and one end of the air outlet pipe is connected to the air outlet. The air inlet pipe and the air outlet pipe are both located on the same side of the belt cover.

[0006] In the inflation regulating valve of this utility model, the air inlet pipe and the valve body are an integral structure.

[0007] In the inflation regulating valve of this utility model, the first end has a mounting groove cavity communicating with the air inlet and the air outlet, and the regulating knob is installed in the mounting groove cavity.

[0008] In the inflation regulating valve of this utility model, the regulating knob includes a knob part and an insertion cylinder part. The insertion cylinder part is inserted into the mounting groove cavity. The insertion cylinder part has a through hole and an adjusting groove strip, and the adjusting groove strip is connected to the through hole. The through hole is directly opposite the air outlet. The adjusting groove strip is located on the outer wall surface of the insertion cylinder part. An air venting cavity is provided at the end of the insertion cylinder part away from the knob part. Both the through hole and the air inlet are connected to the air venting cavity. By rotating the knob part, the position of the adjusting groove strip facing the air outlet is adjusted, thereby adjusting the amount of air output.

[0009] In the inflation regulating valve of this utility model, the regulating groove strip is parallel to the radial direction of the insertion cylinder, and the depth of the regulating groove strip gradually decreases from the side closer to the through hole to the side farther away from the through hole.

[0010] In the inflation regulating valve of this utility model, the first end has a snap-fit ​​part, and the knob part is provided with a slot part at the position corresponding to the snap-fit ​​part. The first end is fastened into the slot part by the snap-fit ​​part, thereby positioning the regulating knob and the valve body.

[0011] In the inflation regulating valve of this utility model, the valve body has a mounting ring platform on the side near the second end, and the belt cover has a lug at the position corresponding to the mounting ring platform. The belt is clamped by the lug and the mounting ring platform, wherein the air inlet pipe and the air outlet pipe are located on the same side of the mounting ring platform.

[0012] In the inflation regulating valve of this utility model, the regulating knob further includes a limiting convex ring wall, which extends from the knob portion toward the insertion cylinder portion; a limiting plate is provided on the side of the valve body near the first end, and the limiting plate abuts against the limiting convex ring wall.

[0013] According to a second aspect provided in the embodiments of this application, a ventilated face mask is provided, including the inflation regulating valve described above.

[0014] The technical solution provided in this application embodiment may include the following beneficial effects: This application designs an inflation regulating valve, which can improve the comfort of the wearer. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1This is a schematic diagram of the structure of an inflation regulating valve in the prior art;

[0017] Figure 2 This is a schematic diagram of the structure of an inflation regulating valve provided by this utility model from one perspective;

[0018] Figure 3 This is a structural schematic diagram of an inflation regulating valve provided by this utility model from another perspective;

[0019] Figure 4 This is a cross-sectional structural schematic diagram of an inflation regulating valve provided by this utility model;

[0020] Figure 5 This is a schematic diagram of the valve body of an inflation regulating valve provided by this utility model from one perspective.

[0021] Figure 6 This is a structural schematic diagram of the valve body of an inflation regulating valve provided by this utility model from another perspective.

[0022] Label Explanation:

[0023] 10. Valve body; 11. First end; 111. Snap-fit ​​part; 12. Second end; 13. Air inlet; 14. Air outlet;

[0024] 15. Install the recessed cavity; 16. Install the ring platform; 17. Limiting plate; 20. Adjusting knob; 21. Knob part;

[0025] 211. Slot; 22. Insertion cylinder; 221. Through hole; 222. Adjustment groove strip; 223. Vent cavity;

[0026] 23. Limiting convex ring wall; 30. Air inlet pipe; 40. Air outlet pipe; 50. Belt pressure cover; 51. Convex ear ring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0029] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0030] Please refer to Figures 2-6 As shown, this utility model discloses an inflation regulating valve, including a valve body 10, an adjusting knob 20, an air inlet pipe 30, an air outlet pipe 40, and a belt cover 50. The valve body 10 has a first end 11 and a second end 12 arranged opposite to each other, with the first end 11 facing the outside of the human body and the second end 12 facing the human body. The adjusting knob 20 is installed on the first end 11, and the belt cover 50 is located on the second end 12. The valve body 10 includes an air inlet 13 and an air outlet 14. One end of the air inlet pipe 30 is connected to the air inlet 13, and one end of the air outlet pipe 40 is connected to the air outlet 14. Both the air inlet pipe 30 and the air outlet pipe 40 are located on the same side of the belt cover 50. The end face of the belt cover 50 in this application is flat, and the belt end face fits against the waist of the human body. Compared with the original protruding structure of the air outlet pipe 40, it greatly improves the user's comfort and indirectly improves the user's work efficiency and accuracy.

[0031] In other words, the end face of the belt cover 50 of this application is flat, and the end face of the belt fits against the waist of the human body, so that the air outlet 40 is away from the waist of the human body. No matter how the air outlet 40 is installed, it will not come into contact with the waist of the human body. At the same time, during use, the inflation regulating valve can be adjusted at will, and the air outlet 40 will not come into contact with the waist of the human body, which greatly improves the user's comfort, as well as the user's work efficiency and accuracy.

[0032] In an alternative embodiment, the intake manifold 30 and the valve body 10 are an integral structure. For example, the valve body 10 can be a single piece of plastic, which reduces the labor costs associated with assembly.

[0033] In an optional embodiment, the first end 11 of the valve body 10 has a mounting recess 15, which is connected to the air inlet 13 and the air outlet 14. An adjustment knob 20 is installed in the mounting recess 15, and the amount of air output is adjusted by rotating the adjustment knob 20.

[0034] In this embodiment, the adjusting knob 20 includes a knob portion 21 and an insertion cylinder portion 22, which is inserted into the mounting groove cavity 15. The insertion cylinder portion 22 has a through hole 221 and an adjusting groove strip 222, which communicates with the through hole 221. The through hole 221 faces the air outlet 14, and the adjusting groove strip 222 is located on the outer wall surface of the insertion cylinder portion 22, surrounding the outer wall surface of the insertion cylinder portion 22. The overall shape of the adjusting groove strip 222 is arc-shaped. A venting cavity 223 is provided at the end of the insertion cylinder portion 22 away from the knob, and both the through hole 221 and the air inlet 13 communicate with the venting cavity 223. By rotating the knob portion 21, the position of the adjusting groove strip 222 facing the air outlet 14 is adjusted, thereby adjusting the amount of air output. The adjusting groove 222 is parallel to the radial direction of the insertion cylinder 22, and the depth of the adjusting groove 222 gradually decreases from the side closer to the through hole 221 to the side farther away from the through hole 221. Oxygen and other gases required by the human body enter the mounting groove cavity 15 through the air inlet 13, then pass through the ventilation groove cavity 223, and then move to the through hole 221, finally exiting through the air outlet 14 and from the air outlet pipe 40. During the rotation of the knob 21, the adjusting groove 222 remains connected to the air outlet 14, and the depth of the adjusting groove 222 gradually decreases from the side closer to the through hole 221 to the side farther away from the through hole 221. Therefore, the amount of air output can be adjusted during the rotation of the knob 21. It is understood that in this embodiment, the outer diameter of the insertion cylinder 22 is adapted to the inner diameter of the mounting groove cavity 15.

[0035] In an optional embodiment, the first end 11 has a latching part 111, and the knob part 21 is provided with a slot part 211 at a position corresponding to the latching part 111. The first end 11 is fastened into the slot part 211 by the latching part 111, thereby positioning the adjustment knob 20 and the valve body 10. At this time, the knob part 21 can rotate around its axis.

[0036] The valve body 10 has a mounting ring platform 16 on the side near the second end 12. The belt cover 50 has a lug 51 at the position corresponding to the mounting ring platform 16. The lug 51 and the mounting ring platform 16 clamp the belt to position the entire inflation regulating valve. The air inlet pipe 30 and the air outlet pipe 40 are located on the same side of the mounting ring platform 16, that is, both the air inlet pipe 30 and the air outlet pipe 40 are located on the side away from the belt cover 50.

[0037] In an optional embodiment, the adjusting knob 20 further includes a limiting protruding ring wall 23, which extends from the knob portion 21 toward the insertion portion. A limiting plate 17 is provided on the side of the valve body 10 near the first end 11, and the limiting plate 17 abuts against the limiting protruding ring wall 23. In this embodiment, in the initial state, one end of the limiting protruding ring wall 23 abuts against one end of the limiting plate 17, at which time the through hole 221 is directly opposite the air outlet 14, and the air volume is at its maximum. When the user needs to adjust the air volume, the knob portion 21 is rotated to the right so that the adjusting groove strip 222 is directly opposite the air outlet 14, at which time the air volume is reduced. When the other end of the limiting protruding ring wall 23 abuts against the other end of the limiting plate 17, the end of the adjusting groove strip 222 is directly opposite the air outlet 14, at which time the air volume is at its minimum. By setting the limiting protruding ring wall 23 and the limiting plate 17, it is ensured that air can always pass through, thus ensuring the user's breathing.

[0038] This application also relates to a ventilated face mask that uses the aforementioned inflation regulating valve to adjust the amount of ventilation, thereby significantly improving the comfort of the user when wearing the ventilated face mask of this application.

[0039] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An inflation regulating valve, characterized in that, include: The valve body comprises a valve body, an adjustment knob, an air inlet pipe, an air outlet pipe, and a belt cover. The valve body has a first end and a second end arranged opposite to each other, with the first end facing the outside of the human body and the second end facing the human body. The adjustment knob is installed at the first end, and the belt cover is installed at the second end. The valve body includes an air inlet and an air outlet. One end of the air inlet pipe is connected to the air inlet, and one end of the air outlet pipe is connected to the air outlet. The air inlet pipe and the air outlet pipe are both located on the same side of the belt cover, which is close to the human body.

2. The inflation regulating valve according to claim 1, characterized in that, The intake pipe and the valve body are an integral structure.

3. The inflation regulating valve according to claim 1, characterized in that, The first end has a mounting groove cavity communicating with the air inlet and the air outlet, and the adjustment knob is installed in the mounting groove cavity.

4. The inflation regulating valve according to claim 3, characterized in that, The adjustment knob includes a knob portion and an insertion cylinder portion. The insertion cylinder portion is inserted into the mounting groove cavity. The insertion cylinder portion has a through hole and an adjustment groove strip, which is connected to the through hole. The through hole faces the air outlet. The adjustment groove strip is located on the outer wall surface of the insertion cylinder portion. A venting cavity is provided at the end of the insertion cylinder portion away from the knob portion. Both the through hole and the air inlet are connected to the venting cavity. By rotating the knob portion, the position of the adjustment groove strip facing the air outlet is adjusted, thereby adjusting the amount of air output.

5. The inflation regulating valve according to claim 4, characterized in that, The adjusting groove is parallel to the radial direction of the insertion cylinder, and the depth of the adjusting groove gradually decreases from the side closer to the through hole to the side farther away from the through hole.

6. The inflation regulating valve according to claim 5, characterized in that, The first end has a snap-fit ​​part, and the knob part is provided with a slot part at the position corresponding to the snap-fit ​​part. The first end is fastened into the slot part by the snap-fit ​​part, thereby positioning the adjustment knob and the valve body.

7. The inflation regulating valve according to claim 1, characterized in that, The valve body has a mounting ring platform on the side near the second end. The belt cover has a lug at the position corresponding to the mounting ring platform. The belt is clamped by the lug and the mounting ring platform. The air inlet pipe and the air outlet pipe are located on the same side of the mounting ring platform.

8. The inflation regulating valve according to claim 6, characterized in that, The adjustment knob also includes a limiting protruding ring wall, which extends from the knob portion toward the insertion cylinder portion; a limiting plate is provided on the side of the valve body near the first end, and the limiting plate abuts against the limiting protruding ring wall.

9. A ventilated face mask, characterized in that, Includes the inflation regulating valve as described in any one of claims 1-8.

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