Dust isolation mask

Abstract

The utility model relates to the technical field of isolation masks, in particular to a dust isolation mask which is characterized in that glass is arranged at the position close to the upper portion of a mask body, a filtering device is arranged at the position close to the bottom of the front face of the mask body, two mother hook-and-loop fasteners are fixed to the right side of the mask body, and two child hook-and-loop fasteners are fixed to the left side of the mask body. An elastic band is fixedly connected to the middle of the mother hook-and-loop fastener close to the upper portion, the other end of the elastic band is fixedly connected with the middle of the son hook-and-loop fastener close to the upper portion, a fixing band is fixedly connected to the middle of the top face of the mask body, and the other end of the fixing band is fixedly connected with the middle of the elastic band. According to the dust isolation mask, the filter element is cleaned and replaced after being full of dust, the service life of the dust isolation mask is prolonged, the mask can be easily attached to the faces of different people through the breathing opening designed through silica gel, the mask is more compact and comfortable to wear, gaps between the faces and the mask body are reduced, and the mask is more comfortable to wear under the cooperation of glass. The eyes are protected while the observation of the user is not influenced.

Description

Technical Field

[0001] This utility model relates to the field of isolation face shield technology, specifically a dust isolation face shield. Background Technology

[0002] During the renovation process, a large amount of particulate matter, such as cement dust, plaster dust, and wood dust, will float in the air. These dusts can not only irritate the respiratory tract, but may also contain harmful substances. Long-term inhalation can have a serious impact on the health of workers. Long-term inhalation of these dusts may lead to serious respiratory diseases such as pneumoconiosis, which poses a great threat to the health of workers. Dust isolation masks can effectively filter out these dusts and ensure that every breath of workers takes is relatively pure.

[0003] Utility model with publication number CN218076035U discloses a dust isolation mask, including a mask body, a main body mechanism, goggles, an adjustment mechanism, a first wearing mechanism, and a second wearing mechanism. The goggles are located above the mask body, and the adjustment mechanism is located between the mask body and the goggles. The first wearing mechanism is located at the outer end of the mask body, and the second wearing mechanism is located at the outer end of the goggles. The adjustment mechanism includes a connecting strap, a Velcro female, a Velcro female, a groove, a limiting piece, a spring, a limiting box, and a connecting shaft. The connecting strap is fixedly installed at the lower end of the goggles.

[0004] The above-mentioned technical solution, through the setting of an adjustment mechanism, allows the connecting strap to pull the spring to extend during wear, thereby adjusting the distance between the goggles and the main body of the mask to a suitable position, and fixing the connecting strap to facilitate wear by people with different facial proportions. However, it is difficult to guarantee the stability of the mask after it is worn, and there is still a certain gap between the mask and the person's face, making it impossible to stably fit the mask to the face. During long-term use in construction, dust particles float in the air, and without a dust isolation mask, these dust particles enter the workers' respiratory tract, harming their health. With prolonged use, the filter element accumulates more dust particles, reducing the protective effect. The filter element is also inconvenient to remove and replace, making it unsuitable for long-term use. Furthermore, the single-wearing structure can cause the mask to fall off during work. Therefore, we propose a dust isolation mask. Utility Model Content

[0005] The purpose of this invention is to provide a dust-proof face mask to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A dust-proof face shield includes a face shield body with glass near the top. A filter device is located near the bottom of the front of the face shield body. Two female Velcro fasteners are fixed to the right side of the face shield body, and two female Velcro fasteners are fixed to the left side of the face shield body. An elastic band is fixedly connected to the middle of the upper female Velcro fasteners, and the other end of the elastic band is fixedly connected to the middle of the upper female Velcro fasteners. A fixing strap is fixedly connected to the middle of the top surface of the face shield body, and the other end of the fixing strap is fixedly connected to the middle of the elastic band. The filter device includes a filter cylinder and a screw cap connected to the left end of the filter cylinder. The filter cylinder penetrates the face shield body, and a silicone pad is located at the right end of the filter cylinder.

[0008] Preferably, the glass is curved, and the glass is inserted into the grooves opened in the mask body around its perimeter and then bonded and fixed.

[0009] In this invention, the curved glass is adapted to the curved groove of the mask body, which does not affect vision and prevents external dust from passing through the mask body and contacting the eyes, thus preventing unnecessary damage to the eyes.

[0010] Preferably, a filter element is installed inside the filter cartridge, a filter screen is connected to the right side of the filter cartridge, a silicone pad is fixedly connected to the right side of the filter screen, the outer diameter of the right end of the filter cartridge is adapted to the outer diameter of the left end of the silicone pad, and the left end of the silicone pad is bonded and fixed to the filter cartridge.

[0011] In this invention, the screw cap protects the filter element inside the filter cartridge. The filter element fully fills the inside of the filter cartridge, and air is filtered through it. Dust particles in the air are trapped on the filter element, thus removing impurities from the gas and reducing the amount of dust particles entering the respiratory tract during construction. With the help of the filter screen, the filter element in the filter cartridge is protected. The screw cap and the spiral design of the filter cartridge allow the screw cap to be opened for easy replacement of the filter element inside the filter cartridge, extending the service life of this dust isolation mask and reducing the need for single-use, thus avoiding resource waste.

[0012] Preferably, the screw cap has several circular holes on its surface, an inner spiral on its inner side, an outer spiral on the outer side of the filter cylinder corresponding to the inner spiral, and the screw cap and filter cylinder are screwed together. The filter element is cylindrical, and the outer diameter of the filter element is adapted to the inner diameter of the filter cylinder. The filter screen is fixedly connected to the inner wall of the filter cylinder by screws. The silicone pad is conical, and the radius on the left side of the silicone pad is smaller than the radius on the right side.

[0013] In this invention, the circular hole on the surface of the cap allows air to enter and exit. The cap is designed with an uneven groove around it. The inner and outer spiral design of the cap and filter cartridge makes it easier and less time-consuming to unscrew the cap when the inner core needs to be replaced. The cylindrical filter cartridge is designed to fit the filter cartridge and can be stably fixed inside the filter device. The silicone pad, which is asymmetrical in size with a larger opening on the right side, is elastic and soft, allowing different people to fit the silicone pad tightly against the right end of the filter cartridge, reducing gaps between the silicone pad and the face. The silicone breathing port design makes it more comfortable to wear.

[0014] Preferably, the female hook and loop fastener is rectangular and the two female hook and loop fasteners are parallel vertically, and the male hook and loop fastener is rectangular and the two male hook and loop fasteners are parallel vertically, with the female hook and loop fasteners and male hook and loop fasteners on the same horizontal plane being bonded together.

[0015] In this invention, the symmetrical female and female hook and loop fasteners are used together, and the tear-off design allows for easy wearing and removal of the dustproof mask, saving time and effort in use.

[0016] Preferably, the elastic band is rectangular, and both ends of the elastic band are sewn and fixed to the corresponding female and female hook and loop fasteners by needle and thread.

[0017] In this invention, the elastic band secures the female and female Velcro straps that are symmetrically positioned near the top, thus distributing the weight of the dust shield on the user's head, reducing the pressure and soreness on the back of the head caused by prolonged wear, and improving wearing comfort.

[0018] Preferably, the fixing strap is rectangular in shape, with one end of the fixing strap bonded to the top of the mask body and the other end sewn to the elastic band with needle and thread.

[0019] In this invention, the fixing strap connects to the elastic band, and the top of the entire dust isolation mask is T-shaped. The fixing strap not only keeps the elastic band from moving back and forth, but the T-shaped wearing surface also ensures that the force is evenly distributed on the user's head. After wearing, the dust isolation mask can be firmly fixed in the adjusted position and fits tightly to the face without shaking up and down or falling off, which would require repeated adjustments and affect the user's wearing experience.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. This utility model, through the cooperation of the filter cartridge and filter element, enables the cleaning and replacement of the filter element when it is full of dust, thereby improving the service life of the dust isolation mask. The silicone-designed breathing port allows it to easily fit different people's faces, making it more snug and comfortable to wear, and reducing gaps between the face and the mask body. With the addition of glass, it does not affect the user's vision while protecting the eyes.

[0022] 2. This utility model, through the installation and cooperation of elastic bands and fixing bands, forms a T-shaped head-mounted wearing surface, which shifts the pressure point from the back of the head to the top of the head, reducing the discomfort on the back of the head during prolonged wear. The T-shaped structure of the wearing surface tightly fits the top of the dust isolation mask to the user's head. After the female and female Velcro are put on, the entire face is firmly fixed to the dust isolation mask, preventing it from slipping off and affecting stable wear. Furthermore, the combination of female and female Velcro helps to ensure a stable fit for workers with different head sizes. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the overall screw cap structure in the open state of this utility model;

[0025] Figure 3 This is a schematic diagram of the screw cap in the open state of this utility model;

[0026] Figure 4 This is an exploded structural diagram of the filtration device of this utility model;

[0027] Figure 5 This is a schematic diagram of the overall side view structure of this utility model;

[0028] Figure 6 This is a schematic diagram of the overall cross-sectional structure of this utility model.

[0029] The meanings of the labels in the diagram are as follows:

[0030] 1. Mask body; 2. Glass; 3. Filter device; 301. Screw cap; 302. Filter cylinder; 303. Filter element; 304. Filter screen; 305. Silicone pad; 306. Circular hole; 307. Inner spiral; 308. Outer spiral; 4. Female hook and loop fastener; 5. Female hook and loop fastener; 6. Elastic band; 7. Fixing strap. Detailed Implementation

[0031] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1-6 This utility model provides a technical solution:

[0033] A dustproof face shield includes a face shield body 1, with a glass 2 located near the top of the face shield body 1. Furthermore, the glass 2 is curved and is inserted into and fixedly bonded to the grooves formed in the face shield body 1 around its perimeter.

[0034] In this invention, the curved glass 2 is adapted to the curved groove of the mask body 1, which does not affect vision and prevents external dust from passing through the mask body 1 and contacting the eyes, thus preventing unnecessary damage to the eyes.

[0035] Specifically, a filter device 3 is provided on the front of the mask body 1 near the bottom. The filter device 3 includes a filter cylinder 302 and a screw cap 301 connected to the left end of the filter cylinder 302. The filter cylinder 302 penetrates the mask body 1, and a silicone pad 305 is provided on the right end of the filter cylinder 302. A filter element 303 is installed inside the filter cylinder 3. A filter screen 304 is connected to the right side of the filter cylinder 302. The silicone pad 305 is fixedly connected to the right side of the filter screen 304. The outer diameter of the right end of the filter cylinder 302 is adapted to the outer diameter of the left end of the silicone pad 305, and the left end of the silicone pad 305 is bonded and fixed to the filter cylinder 302.

[0036] In this invention, the screw cap 301 protects the filter element 303 inside the filter cartridge 302. The filter element 303 fully fills the inside of the filter cartridge 302. Air is filtered through the filter element 303, and dust particles in the air are trapped on the filter element 303, thus removing impurities from the gas and reducing the amount of dust particles entering the respiratory tract during construction. With the cooperation of the filter screen 304, the filter element 303 in the filter cartridge 302 is protected. The spiral design of the screw cap 301 and the filter cartridge 302 allows the screw cap 301 to be opened to replace the filter element 303 inside the filter cartridge 302, thus extending the service life of this dust isolation mask and reducing the waste of resources caused by single use.

[0037] Furthermore, the screw cap 301 has several circular holes 306 on its surface, and an inner spiral 307 is provided on the inner side of the screw cap 301. The outer spiral 308 is provided on the outer side of the filter cylinder 302 at the position corresponding to the inner spiral 307. The screw cap 301 and the filter cylinder 302 are screwed together. The filter element 303 is cylindrical, and the outer diameter of the filter element 303 is adapted to the inner diameter of the filter cylinder 302. The filter screen 304 is fixedly connected to the inner wall of the filter cylinder 302 by screws. The silicone pad 305 is conical, and the radius on the left side of the silicone pad 305 is smaller than the radius on the right side.

[0038] In this invention, the circular hole 306 on the surface of the cap 301 allows air to enter and exit. The cap 301 is designed with an uneven groove around it. The spiral design of the cap 301 and the filter cartridge 302 makes it easier and less time-consuming to turn the cap 301 when the filter element 303 needs to be replaced. The cylindrical filter element 303 is designed to fit the filter cartridge 302 and can be stably fixed inside the filter device 3 by the filter cartridge 302. The silicone pad 305, which is asymmetrical in size and has a larger opening on the right side, is elastic and soft, allowing different people to fit the silicone pad 305 tightly against the right end of the filter cartridge 302, reducing gaps between the silicone pad and the face. The silicone-designed breathing port makes it more comfortable to wear.

[0039] Secondly, two female hook and loop fasteners 4 are fixed on the right side of the mask body 1, and two male hook and loop fasteners 5 are fixed on the left side of the mask body 1. Specifically, the female hook and loop fasteners 4 are rectangular and the two female hook and loop fasteners 4 are parallel vertically, and the male hook and loop fasteners 5 are rectangular and the two male hook and loop fasteners are parallel vertically. The female hook and loop fasteners 4 and the male hook and loop fasteners 5 located on the same horizontal plane are glued together.

[0040] In this invention, the left and right symmetrical female hook and loop fastener 4 and female hook and loop fastener 5 are used together. The tear-off design allows for easy wearing and removal of the dust isolation mask, saving time and effort in use.

[0041] It should be noted that an elastic band 6 is fixedly connected to the middle of the upper female hook and loop fastener 4. The other end of the elastic band 6 is fixedly connected to the middle of the upper female hook and loop fastener 5. Furthermore, the elastic band 6 is rectangular in shape, and both ends of the elastic band 6 are sewn to the corresponding female hook and loop fastener 4 and female hook and loop fastener 5 by needle and thread.

[0042] In this invention, the elastic band 6 secures the female Velcro 4 and the female Velcro 5, which are symmetrically positioned near the top, thus distributing the weight of the dust shield on the user's head and reducing the pressure and soreness on the back of the head caused by prolonged wear, thereby improving wearing comfort.

[0043] A fixing strap 7 is fixedly connected to the middle of the top surface of the mask body 1. Specifically, the fixing strap 7 is rectangular in shape. One end of the fixing strap 7 is glued and fixed to the top of the mask body 1, and the other end is sewn to the elastic band 6 with needle and thread.

[0044] In this invention, the fixing strap 7 connects to the elastic band 6, and the top of the entire dust isolation mask is T-shaped. While fixing the elastic band 6 so that it does not move back and forth, the T-shaped wearing surface makes the force on the user's head evenly distributed. After wearing, the dust isolation mask can be firmly fixed in the adjusted position and fits tightly to the face without shaking up and down or falling off, which would require repeated adjustments and affect the user's wearing experience.

[0045] It is worth adding that the other end of the fixing strap 7 is fixedly connected to the middle of the elastic band 6.

[0046] When using the dust isolation mask in this example, firstly, the glass 2 is installed and fixed in the groove on the surface of the mask body 1. Then, the filter device 3 is installed in the cylindrical groove in the lower middle part of the mask body 1. The corresponding screw cap 301 and filter cylinder 302 are assembled together. The filter element 303, the one-piece molded filter screen 304 and the silicone pad 305 are installed from left to right inside the filter cylinder 302. Then, the female Velcro strap 4 and the female Velcro strap 5 are installed on both sides of the mask body 1. An elastic band 6 is fixedly connected in the middle of the upper female Velcro strap 4 and the female Velcro strap 5. A fixing strap 7 is installed at the middle position of the top of the mask body 1 through the elastic band 6.

[0047] When the mask needs to be worn, the user holds the mask body 1 and separates the Velcro straps on both sides of the mask body 1 in sequence. The front and back of the glass 2 are wiped clean. The user starts to wear the mask from the bottom of the T-shaped wearing surface formed by the elastic band 6 and the fixing band 7. After the top of the head is in the T-shaped wearing surface, the user puts the mouth close to the silicone pad 305 and pulls the Velcro straps on both sides of the mask body 1 towards the back of the head. The user then attaches the main Velcro strap 4 and the secondary Velcro strap 5 at the back of the head and adjusts the length of the attachment to suit workers with different head sizes. Wearing the mask body 1 with the glass 2 helps construction workers protect their eyes during construction, reducing the impact of dust falling into the eyes. After long-term use, the filter element 303 needs to be replaced and cleaned. With the grooved screw cap 301, the filter element 303 can be rotated and unscrewed to facilitate replacement and continuous protection and filtration.

Claims

1. A dust isolating face mask comprising a mask body (1), characterized in that: The mask body (1) has a glass (2) near the top. The mask body (1) has a filter device (3) near the bottom on the front. The mask body (1) has two female Velcro straps (4) fixed on the right side and two female Velcro straps (5) fixed on the left side. An elastic band (6) is fixedly connected to the middle of the upper female Velcro strap (4). The other end of the elastic band (6) is fixedly connected to the middle of the upper female Velcro strap (5). A fixing strap (7) is fixedly connected to the middle of the top surface of the mask body (1). The other end of the fixing strap (7) is fixedly connected to the middle of the elastic band (6). The filter device (3) includes a filter cylinder (302) and a screw cap (301) connected to the left end of the filter cylinder (302). The filter cylinder (302) penetrates the mask body (1), and a silicone pad (305) is provided at the right end of the filter cylinder (302).

2. The dust containment hood of claim 1, wherein: The glass (2) is curved, and the glass (2) is inserted into the groove of the mask body (1) around its perimeter and then bonded and fixed.

3. The dust containment hood of claim 1, wherein: The filter cartridge (302) is equipped with a filter element (303). A filter screen (304) is connected to the right side of the filter cartridge (302). A silicone pad (305) is fixedly connected to the right side of the filter screen (304). The outer diameter of the right end of the filter cartridge (302) is adapted to the outer diameter of the left end of the silicone pad (305), and the left end of the silicone pad (305) is bonded and fixed to the filter cartridge (302).

4. The dust containment hood of claim 3, wherein: The screw cap (301) has several circular holes (306) on its surface, and an inner spiral (307) is provided on the inner side of the screw cap (301). An outer spiral (308) is provided on the outer side of the filter cylinder (302) corresponding to the inner spiral (307). The screw cap (301) and the filter cylinder (302) are screwed together. The filter element (303) is cylindrical. The outer diameter of the filter element (303) is adapted to the inner diameter of the filter cylinder (302). The filter screen (304) is fixedly connected to the inner wall of the filter cylinder (302) by screws. The silicone pad (305) is conical. The radius of the left side of the silicone pad (305) is smaller than the radius of the right side.

5. The dust containment hood of claim 1, wherein: The female hook and loop fastener (4) is rectangular and the two female hook and loop fasteners (4) are parallel vertically. The female hook and loop fastener (5) is rectangular and the two female hook and loop fasteners (5) are parallel vertically. The female hook and loop fasteners (4) and the female hook and loop fasteners (5) located on the same horizontal plane are bonded together.

6. The dust containment hood of claim 1, wherein: The elastic band (6) is rectangular in shape, and the two ends of the elastic band (6) are sewn and fixed to the corresponding female hook and loop fastener (4) and female hook and loop fastener (5) by needle and thread.

7. The dust containment hood of claim 6, wherein: The fixing strap (7) is rectangular in shape. One end of the fixing strap (7) is bonded to the top of the mask body (1), and the other end is sewn to the elastic band (6) by needle and thread.

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