Integrated air guide channel dust mask

Abstract

This utility model relates to an integrated air-guided dust mask, comprising: a mask body with an air duct opening at the front and an exhaust hole at the bottom; an air duct cover plate, which is located at the air duct opening and protrudes into the inner cavity of the mask body, with an airflow window; a power unit, located at the air duct opening, forming an airflow cavity with the air duct cover plate and the mask body; a filter box, located on the side of the mask body; an air duct, with its inlet connected to the filter box and its outlet connected to the air duct cover and communicating with the airflow cavity; and a face-fitting body, located on the mask body. The air duct of this integrated air-guided dust mask has an inlet at one end connected to the filter box on the side of the mask, and an outlet at the other end extending into the airflow cavity inside the mask, allowing filtered clean air to be directly delivered to the breathing zone.

Description

Technical Field

[0001] This utility model relates to the field of industrial dust mask technology, and in particular to an integrated air-guiding channel dust mask. Background Technology

[0002] Workers who work in dusty environments for extended periods are highly susceptible to respiratory and lung infections, which can lead to serious respiratory illnesses. In dusty environments, it is essential to wear industrial dust masks promptly. These masks are designed to block dust particles from entering the nasal cavity for workers in dusty conditions.

[0003] Existing masks have poorly designed clean air delivery channels, preventing clean air from directly reaching the breathing zone near the mouth and nose. This results in a significant amount of ineffective diffusion of clean air inside the mask, easily mixing with exhaled air remaining inside, causing the problem of "freshly inhaled clean air being contaminated by exhaled air." This prevents the formation of a smooth, closed airflow loop, affecting the quality of the breathable air. Prolonged wear of industrial dust masks may cause breathing difficulties, posing a significant threat to the wearer's health. Utility Model Content

[0004] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide an integrated air-guiding channel dust mask that ensures unobstructed closed-loop breathing airflow.

[0005] To solve the above-mentioned technical problems, this utility model provides an integrated air-guiding dust mask, comprising a mask body with an air duct opening at the front end and an exhaust hole at the bottom; an air duct cover plate, which is disposed at the air duct opening and has a structure protruding into the inner cavity of the mask body, and has an airflow window; a power assembly, which is disposed at the air duct opening and forms an airflow cavity with the air duct cover plate and the mask body; a filter box, which is disposed on the side of the mask body; an air duct, whose air inlet is connected to the filter box and whose air outlet is connected to the air duct cover plate and communicates with the airflow cavity; and a face-fitting body, which is disposed on the mask body.

[0006] The number of filter boxes is two, and the two filter boxes are respectively arranged on both sides of the mask body.

[0007] The air guide channel has a three-way structure, and the air inlets on both sides of the air guide channel are connected to the filter boxes on both sides respectively.

[0008] The inner diameter of the air guide channel is uniform.

[0009] The air outlet of the air guide channel is connected to the air duct cover plate through an embedded structure.

[0010] The power assembly includes: a power housing disposed at the air duct opening, forming an airflow cavity with the air duct cover and the mask body; a battery disposed within the power housing; a control circuit board disposed within the power housing, having a control circuit on it, and connected to the battery; and a fan located within the airflow cavity, communicating with the control circuit via a drive assembly, and connected to the battery.

[0011] A switch is provided on the power housing, the switch communicates with the control circuit, and the switch is connected to the battery.

[0012] A flange is provided on the power housing, and the flange surrounds the switch.

[0013] The flange has a protrusion.

[0014] The number of protrusions is two, and the two protrusions are respectively disposed on both sides of the flange.

[0015] Compared with the prior art, this utility model of an integrated air-guiding channel dustproof mask has the following advantages: First, the air inlet at one end of the air duct connects to the filter box on the side of the mask, while the outlet at the other end extends into the airflow chamber inside the mask. The outlet at the end of the air duct is close to the mouth and nose. This design allows filtered clean air to be delivered directly to the breathing zone, reducing ineffective diffusion within the mask and preventing freshly inhaled clean air from being contaminated by exhaled waste gas, ensuring a smooth and closed-loop airflow for breathing. The inside of the mask is a relatively closed cavity, and the air duct acts like a precise airflow window within this sealed cavity, allowing only filtered air to enter and exit, while keeping harmful external substances outside the sealed cavity. The "tubular structure" of the duct also makes it easier to control the airflow direction than an open design, preventing turbulent airflow from impacting the facial sealing area. Simultaneously, the fan actively guides clean air into the airflow chamber at positive pressure. Inhalation only takes in clean air, and exhalation only expels waste gas, preventing exhaled waste gas from flowing back into the breathing zone.

[0016] Secondly, the filter boxes on both sides of the mask have symmetrical interfaces, which can disperse airflow pressure. During inhalation, air can enter through both channels simultaneously, reducing airflow resistance in a single channel and making breathing easier, especially suitable for long-term work. In addition, the relatively uniform inner diameter of the air guide channel ensures sufficient airflow.

[0017] Third, the air duct is an embedded structure, and the duct components can be replaced individually during production or maintenance. If the inner wall of the duct is contaminated with dust or ages due to long-term use, replacing the duct directly is more cost-effective than replacing the entire mask, thus reducing usage costs. Attached Figure Description

[0018] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the structure of the integrated air duct dustproof face mask of this utility model; Figure 2 This is a schematic diagram of the air guide channel structure of the integrated air guide channel dustproof mask of this utility model; Figure 3 This is a schematic diagram of the connection structure between the air duct and the face mask body of the integrated air duct dustproof face mask of this utility model. Figure 1 ; Figure 4 This is a schematic diagram of the connection structure between the air duct and the face mask body of the integrated air duct dustproof face mask of this utility model. Figure 2 ; Figure 5 This is an exploded view of the integrated air guide channel dustproof mask of this utility model; Figure 6 This is a schematic diagram of the integrated air guide channel dustproof mask structure of this utility model.

[0020] Explanation of reference numerals in the accompanying drawings of this utility model's integrated air-guiding dustproof face shield: Detailed Implementation

[0021] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0022] For ease of description, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified. In this application, unless otherwise explicitly specified and limited, terms such as "installed," "connected," "joined," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] Unless otherwise specified, the terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains, and should be understood to have the meaning consistent with the meaning in the context of the relevant art, and should not be interpreted in an idealized or over-formalized manner, except as expressly defined in this invention.

[0024] like Figures 1-6 As shown, the face-fitting body 15 of this integrated air-guiding dust mask fits snugly against the face. The air-guiding channel 7 of the dust mask adopts a directional delivery design. The air inlet of the air-guiding channel 7 is precisely aligned with the filter box 6 on the side of the mask body 1, while the air outlet extends into the mask body 1 and connects with the inwardly protruding air duct cover 4, communicating with the airflow cavity 9, and ensuring that the end air outlet is close to the breathing area where the mouth and nose are located. During inhalation, the filtered clean air is directly delivered into the airflow cavity 9 and flows out from the airflow window 5 at the top, entering the core breathing area. This significantly reduces the irregular diffusion of clean air inside the mask body 1, fundamentally avoiding the mixing and pollution of freshly inhaled clean air with residual exhaled exhaust gas inside the mask body 1, ultimately achieving a closed-loop effect of smooth airflow during breathing, ensuring that exhaust gas is discharged only from the exhaust port 3. Since the interior of the mask body 1 is a relatively closed cavity, the air guide channel 7 acts as a directional airflow channel within this sealed environment, allowing only filtered clean air to enter the airflow cavity 9 through the air guide channel 7, while preventing harmful external pollutants from entering the sealed cavity. Furthermore, compared to traditional open designs, the tubular structure of the air guide channel 7 provides stronger control over the airflow direction, effectively preventing turbulent airflow from impacting the face and the sealed area of ​​the mask body 1, further ensuring the sealing performance of the mask body 1.

[0025] The mask body 1 has filter boxes 6 on both sides. The symmetrical filter boxes and the air guide channels 7 work together to form a dual-sided air intake structure, which allows for simultaneous air intake from both sides during inhalation. This evenly distributes the airflow pressure to both channels, significantly reducing the airflow resistance of a single channel and making breathing smoother and easier. It is especially suitable for long-term work scenarios and can effectively alleviate the user's respiratory fatigue. Moreover, the inner diameter of the air guide channels 7 remains relatively uniform, ensuring stable airflow within the channels and avoiding airflow loss due to sudden changes in the inner diameter. This ensures that the staff always have a sufficient supply of clean air to meet the breathing needs under different work intensities.

[0026] The power housing 8 of the power unit is fitted to the air duct opening of the mask body 1, forming an airflow cavity 9 together with the air duct cover 4 and the mask body 1. The fan 12 of the power unit is placed inside the airflow cavity 9. Under the active drive of the fan 12, the clean air entering the airflow cavity 9 through the air guide channel 7 is always kept under positive pressure. The positive pressure environment, combined with the directional delivery characteristics of the channel, ensures that the operator only inhales clean air when inhaling, completely eliminating the problem of exhaled waste gas flowing back into the breathing area. The switch 13 on the outermost side of the power housing 8 can control the opening and closing of the fan 12 or its speed. The fan 12 and the switch 13 are controlled by the control circuit on the internal control circuit board 10 and powered by the battery 11. The battery 11 can also be charged via a USB port.

[0027] Since operators typically wear gloves, the heavy gloves increase the difficulty of finding and operating the switch 13. Therefore, a surrounding flange 14 is provided around the switch 13 to facilitate finding and locating it, enabling blind operation. Furthermore, protrusions 2 are provided on both sides of the flange 14 to prevent the switch 13 from contacting the flat surface when the operator places the mask on the flat surface, thus preventing accidental activation due to pressure.

[0028] The air guide channel 7 adopts an embedded installation method, allowing it to be disassembled and replaced individually during production assembly or routine maintenance. When the inner wall of the air guide channel 7 accumulates dust and pollutants due to long-term use, or shows signs of aging and damage, it is not necessary to replace the entire mask; only the air guide channel 7 needs to be replaced to restore normal use. This not only simplifies the maintenance process but also significantly reduces the cost of consumable replacements, thereby substantially lowering the overall cost of using the mask.

[0029] The above description of the embodiments is provided to enable those skilled in the art to understand and use the present invention. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present invention is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the protection scope of the present invention.

Claims

1. An integrated air duct dustproof mask, characterized in that, include: The mask body has an air duct opening at the front end and an exhaust hole at the bottom. A duct cover plate is provided at the duct opening. The duct cover plate has a structure that protrudes into the inner cavity of the mask body and has an airflow window. A power assembly is disposed at the air duct opening, and the power assembly, the air duct cover, and the mask body form an airflow cavity; A filter box is disposed on the side of the mask body; An air guide channel, wherein the air inlet of the air guide channel is connected to the filter box, and the air outlet of the air guide channel is connected to the air duct cover and is connected to the airflow cavity; A face-fitting body is disposed on the face mask body.

2. The integrated air duct dustproof mask according to claim 1, characterized in that, The number of filter boxes is two, and the two filter boxes are respectively arranged on both sides of the mask body.

3. The integrated air duct dustproof mask according to claim 2, characterized in that, The air guide channel has a three-way structure, and the air inlets on both sides of the air guide channel are connected to the filter boxes on both sides respectively.

4. The integrated air duct dustproof mask according to claim 1 or 3, characterized in that, The inner diameter of the air guide channel is uniform.

5. The integrated air duct dustproof mask according to claim 1, characterized in that, The air outlet of the air guide channel is connected to the air duct cover plate through an embedded structure.

6. The integrated air duct dustproof mask according to claim 1, characterized in that, The power assembly includes: A power housing is disposed at the air duct opening and, together with the air duct cover and the mask body, forms the airflow cavity; A battery, wherein the battery is disposed within the power housing; A control circuit board is disposed inside the power housing, and a control circuit is provided on the control circuit board. The control circuit board is connected to the battery. The fan is located within the airflow cavity, and the fan communicates with the control circuit via a drive component. The fan and the drive component are connected to the battery.

7. The integrated air duct dustproof mask according to claim 6, characterized in that, A switch is provided on the power housing, the switch communicates with the control circuit, and the switch is connected to the battery.

8. The integrated air duct dustproof mask according to claim 7, characterized in that, A flange is provided on the power housing, and the flange surrounds the switch.

9. The integrated air duct dustproof mask according to claim 8, characterized in that, The flange has a protrusion.

10. The integrated air duct dustproof mask according to claim 9, characterized in that, The number of protrusions is two, and the two protrusions are respectively disposed on both sides of the flange.

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