Gas mask

Abstract

The utility model relates to a gas mask, and belongs to the technical field of protective articles. Comprising a mask, a glasses cover, a first sealing ring, a buckle, a bandage, two filtering boxes, an outer breathing opening, an inner breathing opening, a protective shell, two scraping plates and two driving motors. Due to the fact that the rear end of the glasses cover is fixedly connected with the front side face of the mask body, when a wearer wears glasses, the wearer can directly wear the gas mask without removing the glasses, and it is guaranteed that the wearer can clearly see the field environment in the working process; the protective shell is connected to the front side face of the face mask, the two driving motors are connected to the interior of the protective shell, output shafts of the two driving motors extend to the exterior of the front end of the protective shell and then are fixedly connected with one ends of the two scraping plates, and the two scraping plates are driven to rotate at the front end of the glasses cover while the driving motors rotate; dust or water vapor attached to the front end of the glasses cover is removed, the definition of the glasses cover is improved, and safety accidents of a wearer caused by the fuzzy glasses cover are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of protective equipment, in particular to a gas mask. Background Art

[0002] A gas mask is a personal protective equipment (PPE) that protects the wearer's respiratory organs, eyes, and face from toxic gases or substances. Currently, commonly used gas masks are divided into half-masks and full-face masks. Half-masks only protect the wearer's respiratory organs, leaving the face and eyes unprotected. Full-face masks protect the wearer's entire face, eyes, and respiratory organs.

[0003] However, for wearers who need to wear glasses, the full-face masks commonly used in the prior art cannot be worn with glasses at the same time. The wearer needs to take off the glasses and then wear the protective mask, which can easily lead to the wearer being unable to see the on-site environment clearly, affecting normal work, and even posing certain safety hazards; if encountering a working environment with a lot of dust or water vapor, dust or water vapor is likely to adhere to the gas mask, resulting in reduced clarity of the gas mask, which can easily affect the wearer's normal work and increase the possibility of safety accidents for the wearer. Utility Model Content

[0004] In order to solve the above technical problems, the present invention provides a gas mask. The technical solution of the present invention is as follows:

[0005] A gas mask comprises a mask, a glasses cover, a first sealing ring, a plurality of buckles, a plurality of straps, two filter boxes, an external breathing port, an internal breathing port, a protective shell, two scrapers and two drive motors, wherein the upper portion of the mask is provided with a first through hole, the rear end of the glasses cover is fixedly connected to the front side of the mask through the first through hole, the shape of the first through hole matches the shape of the rear end of the glasses cover, the first sealing ring is detachably connected to the outer periphery of the mask, a plurality of buckles are fixedly connected to the outer periphery of the sealing ring at intervals, one end of a plurality of straps are detachably connected to a plurality of buckles respectively, the lower portion of the mask is provided with two second through holes at intervals, the two filter boxes are respectively connected through two The second through hole is detachably connected to the front side of the mask, and a third through hole is provided between the two second through holes of the mask, the external breathing port is located on the front side of the mask, and the internal breathing port is located on the rear side of the mask. After the external breathing port is fixedly connected to the internal breathing port, it is connected to the mask through the third through hole, and the rear end of the protective shell is fixedly connected to the front side of the mask, and the protective shell is located at the top of the glasses cover, and the two driving motors are both connected to the inside of the protective shell, and the output shafts of the two driving motors are extended to the outside of the front end of the protective shell and are respectively fixedly connected to one end of the two scrapers. When in use, the inner sides of the two scrapers abut the front end of the glasses cover.

[0006] Optionally, a gas mask also includes a battery and a charging management module, the battery is connected to the inside of the protective shell, the two drive motors are electrically connected to the battery, a charging interface is provided at the top of the protective shell, the charging management module is electrically connected to the battery, and an external power supply is electrically connected to the charging management module through the charging interface.

[0007] Optionally, a gas mask also includes a searchlight and a lamp holder, a fourth through hole is opened at the front end of the protective shell, and one end of the outer side surface of the lamp holder is fixedly connected to the front end of the protective shell through the fourth through hole; the lamp holder is electrically connected to the battery, and the searchlight is electrically connected to the lamp holder.

[0008] Optionally, a gas mask further includes a first external switch, and the first external switch is connected to the electrical connection path between the two drive motors and the battery.

[0009] Optionally, a gas mask further includes a second external switch, and the second external switch is connected to the electrical connection path between the lamp holder and the battery.

[0010] Optionally, a gas mask further includes a mask bottom, the mask bottom is semicircular in shape, and the arc end of the mask bottom is vertically fixedly connected to the bottom of the mask.

[0011] Optionally, the two filter boxes are sealedly connected to the two second through holes respectively through a filter screen and a second sealing ring.

[0012] Optionally, the face mask and the glasses cover are both made of polycarbonate.

[0013] All the above optional technical solutions can be combined arbitrarily, and the present utility model does not provide detailed descriptions of the structures after each combination.

[0014] By means of the above solution, the beneficial effects of the present invention are as follows:

[0015] By providing a face mask and a glasses cover, the rear end of the glasses cover is fixedly connected to the front side of the face mask through the first through hole, so that the internal space of the glasses cover connected to the front side of the face mask can accommodate glasses. When the wearer is a person wearing glasses, the wearer can directly wear the gas mask provided by the utility model without taking off the glasses, which can ensure that the wearer can see the on-site environment clearly during work and perform normal work, thereby reducing safety hazards.

[0016] By arranging a protective shell, two scrapers and two driving motors, the protective shell is connected to the front side of the mask, and the protective shell is also located at the top of the glasses cover, the two driving motors are both connected to the inside of the protective shell, and the output shafts of the two driving motors are both extended to the outside of the front end of the protective shell, and are then fixedly connected to one end of the two scrapers, so that when there is a lot of dust or water vapor in the working environment, the two driving motors can be started, and the two driving motors can drive the two scrapers to rotate at the front end of the glasses cover while rotating, thereby scraping off dust or water vapor from the front end of the glasses cover, improving the clarity of the glasses cover, and preventing the wearer from having a safety accident due to the blurring of the glasses cover; after the scraping work is completed, the two driving motors are turned off and the scrapers are reset so that the two scrapers are both located above the glasses cover; when there is no dust or water vapor in the working environment, the motor controls the two scrapers to be located above the glasses cover to avoid blocking the wearer's line of sight.

[0017] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of the utility model at a first viewing angle;

[0019] Figure 2 This is a schematic structural diagram of the utility model at a second viewing angle;

[0020] Figure 3 This is the main view of the utility model;

[0021] Figure 4 It is a rear view of the utility model;

[0022] Figure 5 It is a top view of the utility model;

[0023] Figure 6 This is a power supply connection diagram for the motor, lamp holder, battery and charging management module in this utility model.

[0024] Description of Figure Numbers:

[0025] 1. Face mask; 2. Eyeglass cover; 3. Filter box; 4. External breathing port; 5. Internal breathing port; 6. Protective shell; 7. Scraper; 8. Drive motor; 9. Charging port; 10. Battery; 11. Charging management module; 12. Lamp holder; 13. First external switch; 14. Second external switch; 15. Cover bottom. DETAILED DESCRIPTION

[0026] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] like Figures 1 to 6 As shown, the utility model provides a gas mask, including a mask 1, a glasses cover 2, a first sealing ring, a plurality of buckles, a plurality of straps, two filter boxes 3, an external breathing port 4, an internal breathing port 5, a protective shell 6, two scrapers 7 and two drive motors 8. The upper part of the mask 1 is provided with a first through hole, the rear end of the glasses cover 2 is fixedly connected to the front side of the mask 1 through the first through hole, the shape of the first through hole matches the shape of the rear end of the glasses cover 2, the first sealing ring is detachably connected to the outer periphery of the mask 1, a plurality of buckles are fixedly connected to the outer periphery of the sealing ring at intervals, one end of a plurality of the straps are detachably connected to a plurality of the buckles respectively, the lower part of the mask 1 is provided with two second through holes at intervals, the two filter boxes 3 are respectively connected through two The second through hole is detachably connected to the front side of the mask 1, and a third through hole is provided between the two second through holes of the mask 1. The external breathing port 4 is located on the front side of the mask 1, and the internal breathing port 5 is located on the rear side of the mask 1. After the external breathing port 4 is fixedly connected to the internal breathing port 5, it is connected to the mask 1 through the third through hole. The rear end of the protective shell 6 is fixedly connected to the front side of the mask 1, and the protective shell 6 is located at the top of the glasses cover 2. The two driving motors 8 are both connected to the inside of the protective shell 6. The output shafts of the two driving motors 8 are extended to the outside of the front end of the protective shell 6 and are respectively fixedly connected to one end of the two scrapers 7. When in use, the inner sides of the two scrapers 7 abut the front end of the glasses cover 2.

[0028] Specifically, the first sealing ring and the binding strap in the present invention are both made of rubber. The number of buckles in the present invention is four, two of which are connected to the two sides of the top of the first sealing ring, and the other two are connected to the two sides of the bottom of the first sealing ring; the number of binding straps in the present invention is four. The type of the filter box 3 in the present invention can adopt the gas filter box commonly used in the prior art. A plurality of connecting holes are provided on the circumference of one end of the inner breathing port 5 in the present invention, and a plurality of connecting buckles are connected on the circumference of one end of the outer breathing port 4. After one end of the outer breathing port 4 passes through the third through hole, the outer breathing port 4 and the inner breathing port 5 are fixedly connected by a plurality of connecting buckles and a plurality of connecting holes.

[0029] In a specific embodiment, the operator places the mask 1 in front of the face, wraps the other ends of the four straps around the back of the wearer's head, and ties the other ends of the four straps together to fix the mask 1 to the wearer's head through multiple straps.

[0030] When there is no dust or water vapor in the working environment, there is no need to start the two drive motors 8, and the scrapers 7 do not need to perform scraping work. The two scrapers 7 are both located above the glasses cover 2 to avoid blocking the wearer's vision; if there is more dust or water vapor in the working environment, the two drive motors 8 are started, and the output shafts of the two drive motors 8 rotate, while driving the two scrapers 7 to rotate at the front end of the glasses cover 2 to scrape off the dust or water vapor at the front end of the glasses cover 2; after the scraping work is completed, the two drive motors 8 are turned off and the two scrapers 7 are reset.

[0031] Furthermore, in order to avoid air leakage at the connection between the face mask 1 and the eyeglass cover 2, an integrated molding process can be selected to process the face mask 1 and the eyeglass cover 2 so that the face mask 1 and the eyeglass cover 2 are an integrated structure.

[0032] By fixedly connecting the rear end of the glasses cover 2 to the front side of the mask 1 through the first through hole, when the wearer is a person wearing glasses, the glasses cover 2 provides space for accommodating glasses, and the wearer can directly wear the gas mask provided by the utility model without removing the glasses, which can ensure that the wearer can see the on-site environment clearly during work and perform normal work.

[0033] By connecting the protective shell 6 to the front side of the mask 1, the protective shell 6 is located at the top of the glasses cover 2, and the two drive motors 8 are connected to the inside of the protective shell 6. The output shafts of the two drive motors 8 extend to the outside of the front end of the protective shell 6 and are fixedly connected to one end of the two scrapers 7. When the drive motor 8 starts to rotate, it can drive the two scrapers 7 to rotate at the front end of the glasses cover 2, thereby scraping the front end of the glasses cover 2 to remove dust or water vapor attached to the front end of the glasses cover 2, improve the clarity of the glasses cover 2, and prevent the wearer from having safety accidents due to the blurring of the glasses cover 2.

[0034] By providing two filter cartridges 3, an external breathing port 4, and an internal breathing port 5, the wearer can inhale and exhale normally after putting on the gas mask. The two filter cartridges 3 filter dust and toxic substances in the air, ensuring that the inhaled gas is clean and safe. The wearer then exhales through the internal breathing port 5 and the external breathing port 4. This arrangement separates inhalation and exhalation into two channels, which not only maintains the pressure inside the mask 1 but also reduces the accumulation of water vapor inside the mask 1, especially in humid or high-temperature environments, ensuring that the wearer feels comfortable when breathing. If inhalation and exhalation share a single channel, the exhaled gas contains carbon dioxide and water vapor, which may contaminate the inhalation channel, thereby reducing the filtering effect of the filter cartridge 3.

[0035] Optionally, a gas mask also includes a battery 10 and a charging management module 11, the battery 10 is connected to the inside of the protective shell 6, the two drive motors 8 are electrically connected to the battery 10, a charging interface 9 is provided at the top of the protective shell 6, the charging management module 11 is electrically connected to the battery 10, and an external power supply is electrically connected to the charging management module 11 through the charging interface 9.

[0036] The charging management module 11 is used to manage the charging process and whether the battery 10 is charging. The specific structure of the charging management module 11 is not described in detail in this utility model. By controlling the charging of the battery 10 by the charging management module 11, the utility model can avoid the need for external power equipment such as an external power cord, making the utility model more portable.

[0037] Optionally, a gas mask also includes a searchlight and a lamp holder 12, a fourth through hole is opened at the front end of the protective shell 6, and one end of the outer side surface of the lamp holder 12 is fixedly connected to the front end of the protective shell 6 through the fourth through hole; the lamp holder 12 is electrically connected to the battery 10, and the searchlight is electrically connected to the lamp holder 12.

[0038] In a specific embodiment, by contacting the searchlight with one end of the inner side of the lamp holder 12 , a current path can be formed between the battery 10 and the searchlight, so that the battery 10 supplies power to the searchlight, and the searchlight illuminates the working environment.

[0039] By setting up a searchlight, it can provide lighting for the wearer in a dim or lightless working environment, thereby improving the wearer's work efficiency and reducing the wearer's work difficulty and danger.

[0040] Optionally, a gas mask further includes a first external switch 13 , and the first external switch 13 is connected to the electrical connection path between the two driving motors 8 and the battery 10 .

[0041] By adding a first external switch 13 to the path connecting the battery 10 and the two drive motors 8, it is possible to control whether the battery 10 supplies power to the two drive motors 8 at the same time, thereby controlling whether the two scrapers 7 perform scraping actions at the same time.

[0042] Optionally, a gas mask further includes a second external switch 14 , and the second external switch 14 is connected to the electrical connection path between the lamp holder 12 and the battery 10 .

[0043] By adding a second external switch 14 to the path connecting the battery 10 and the lamp holder 12, it is possible to control whether the battery 10 supplies power to the lamp holder 12, and thus to control whether the searchlight is irradiated. When replacing the searchlight, the second external switch 14 can be adjusted to the off state to disconnect the circuit between the battery 10 and the lamp holder 12, thereby disconnecting the power supply to the searchlight and reducing the risk of replacing the searchlight.

[0044] Optionally, a gas mask further includes a mask bottom 15 , which is semicircular in shape, and the arc end of the mask bottom 15 is vertically fixedly connected to the bottom of the mask 1 .

[0045] Specifically, the material of the cover bottom 15 in the present invention is the same as that of the face mask 1 and the glasses cover 2 .

[0046] Furthermore, in order to avoid air leakage at the connection between the mask 1 and the mask bottom 15, an integrated molding process can be selected to process the mask 1 and the mask bottom 15, so that the mask 1 and the mask bottom 15 are an integrated structure.

[0047] By connecting the mask bottom 15 to the bottom of the mask 1, the fit between the gas mask and the wearer's face can be improved, thereby improving the sealing effect of the utility model.

[0048] Optionally, the two filter boxes 3 are sealedly connected to the two second through holes respectively through a filter screen and a second sealing ring.

[0049] As an embodiment, the outer periphery of the two second through holes of the mask 1 in the utility model is fixed with connecting parts, the middle part of the two connecting parts is provided with a fourth through hole, the fourth through hole is communicated with the second through hole, and the top of the two fourth through holes is fixed with a filter screen; the outer walls of the two connecting parts are connected to the second sealing ring, and the two filter boxes 3 can form a sealed connection with the front side of the mask 1 through the connecting parts and the second sealing ring respectively; such an arrangement allows the two filter boxes 3 to first filter the dust and toxic substances in the air for the first time, and then filter the dust and toxic substances in the air for the second time through the filter screens on the top of the two fourth through holes.

[0050] Optionally, the face mask 1 and the glasses cover 2 are both made of polycarbonate. The face mask 1 and the glasses cover 2 supported by polycarbonate have the characteristics of being not easily deformed and being lightweight.

[0051] In summary, the gas mask provided by the present invention adds a glasses cover 2 to the mask 1, and the internal space of the glasses cover 2 can accommodate glasses, so that the wearer who needs to wear glasses can wear the present invention without taking off the glasses, which can ensure that the wearer can see the on-site environment clearly during work; the two driving motors 8 and the two scrapers 7 can scrape the front end of the glasses cover 2, thereby scraping off the dust or water vapor attached to the front end of the glasses cover 2 to improve the clarity of the glasses cover 2 and avoid safety accidents caused by the blurring of the glasses cover 2 for the wearer; by adding a searchlight to the gas mask, a light source is provided for the wearer, reducing the difficulty and danger of the wearer's work.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A gas mask, characterized in that: include: A face mask (1), a glasses cover (2), a first sealing ring, a plurality of buckles, a plurality of straps, two filter boxes (3), an external breathing port (4), an internal breathing port (5), a protective shell (6), two scrapers (7) and two drive motors (8); the upper portion of the face mask (1) is provided with a first through hole; the rear end of the glasses cover (2) is fixedly connected to the front side of the face mask (1) through the first through hole; the shape of the first through hole matches the shape of the rear end of the glasses cover (2); the first sealing ring is detachably connected to the outer periphery of the face mask (1); a plurality of buckles are fixedly connected to the outer periphery of the sealing ring at intervals; one end of a plurality of straps is detachably connected to the plurality of buckles; the lower portion of the face mask (1) is provided with two second through holes at intervals; the two filter boxes (3) are respectively connected to the face mask (1) through the two second through holes. The front side of the mask (1) is detachably connected, a third through hole is further provided between the two second through holes of the mask (1), the external breathing port (4) is located on the front side of the mask (1), and the internal breathing port (5) is located on the rear side of the mask (1), and the external breathing port (4) and the internal breathing port (5) are fixedly connected and then connected to the mask (1) through the third through hole, the rear end of the protective shell (6) is fixedly connected to the front side of the mask (1), the protective shell (6) is located at the top end of the glasses cover (2), the two driving motors (8) are both connected to the inside of the protective shell (6), the output shafts of the two driving motors (8) are both extended to the outside of the front end of the protective shell (6) and are respectively fixedly connected to one end of the two scrapers (7), and when in use, the inner sides of the two scrapers (7) abut against the front end of the glasses cover (2).

2. A gas mask according to claim 1, characterized in that: Also includes: A battery (10) and a charging management module (11), wherein the battery (10) is connected inside the protective shell (6), the two drive motors (8) are both electrically connected to the battery (10), a charging interface (9) is provided at the top of the protective shell (6), the charging management module (11) is electrically connected to the battery (10), and an external power source is electrically connected to the charging management module (11) via the charging interface (9).

3. A gas mask according to claim 2, characterized in that: Also includes: A searchlight and a lamp holder (12), wherein a fourth through hole is provided at the front end of the protective shell (6), and one end of the outer side surface of the lamp holder (12) is fixedly connected to the front end of the protective shell (6) through the fourth through hole; The lamp holder (12) is electrically connected to the battery (10), and the searchlight is electrically connected to the lamp holder (12).

4. A gas mask according to claim 2, characterized in that: Also includes: A first external switch (13) is connected to the electrical connection path between the two drive motors (8) and the battery (10).

5. A gas mask according to claim 3, characterized in that: Also includes: A second external switch (14) is connected to the electrical connection path between the lamp holder (12) and the battery (10).

6. A gas mask according to claim 1, characterized in that: Also includes: The cover bottom (15) is semicircular in shape, and the arc end of the cover bottom (15) is vertically fixedly connected to the bottom of the mask (1).

7. A gas mask according to claim 1, characterized in that: The two filter boxes (3) are respectively sealed and connected to the two second through holes via a filter screen and a second sealing ring.

8. A gas mask according to claim 1, characterized in that: The face mask (1) and the glasses cover (2) are both made of polycarbonate.

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