JP7328721B2 - A mask with an easy-to-replace filter unit - Google Patents

Description

TECHNICAL FIELD The present invention relates to the technical field of masks, and more particularly to a mask whose filter unit is easy to replace.

With the development of society and industrial level, human activities and production will generate many pollutants, floating in the air and causing air pollution, so to reduce the damage to human health caused by air pollution In addition, people use many masks, and masks are widely used as items that protect themselves from pollutants, viruses and bacteria, and bring safety to people's lives. The level is also different, commonly used masks are used to filter dust, but a higher filtration level is required to prevent dust, viruses and bacteria, or to purify the air. .

According to the applicant of the present invention, when conventional masks are used, it is necessary to wear masks of different levels according to the situation, which cannot be reused and leads to waste of resources, and the ear straps of the mask are found to be incapable of adjusting to the size of the wearer's head and lack flexibility in use.

The purpose of the present invention is to provide a mask with a filter unit that is easy to replace, and the problem that the conventional mask has a single method of use and cannot be reused, resulting in wasted resources and reduced flexibility of use. The purpose is to improve
The present invention is realized as follows,

A mask for easy replacement of a filter unit, comprising a mask body, a mounting cavity provided in an intermediate portion of the mask body, a snap ring fixed to an edge of the mounting cavity, and an annular snap groove inside the snap ring. Ear straps are provided on both the left and right ends of the mask body, one end of the ear strap is fixedly connected to the mask body, a buckle is provided on both ends near the lower edge of the mask body, and the buckle is on the other end of the ear strap. Connected by an adjustable locking method, the front of the mask body is provided with a raised seal ring made of silicone material near the peripheral edge, the first filter unit is sandwiched inside the snap ring, and the ear strap The adjustable locking connection between the other end and the buckle realizes the fixing of the ear strap by the buckle, and adjusts the length of the ear strap to meet the different needs of users with good flexibility. can.

The first filter unit includes a frame sandwiched inside the snap ring, the outer circumference of the frame is provided with an annular protrusion that fits into the snap groove, and the first filter part is fixed inside the frame, and the frame is , comprising a press frame and a fixed frame, the side of the fixed frame facing the press frame is provided with a locating groove, the end of the first filter part is fitted into the locating groove, and the pressing frame is fixed by the locating groove; The first filter part is pressed and fixed, one side of the pressing frame is provided with a plurality of equally spaced plugs, the fixing frame is provided with sockets for fitting the plugs, and the first filter part is in normal use The parts filter dust in the air, and the first filter unit is sandwiched by the snap ring, so that the first filter unit can be easily removed, and at the same time, the detachable separation between the press frame and the fixed frame allows the entire mask Only the first filter part can be replaced without replacing the mask, enabling reuse of the mask and reducing waste of resources.

Further, a second filter unit is sandwiched inside the snap ring, the second filter unit includes a filter cartridge, an annular protrusion is provided on the outer edge of one end of the filter cartridge to fit into the snap groove, and the filter cartridge A mesh cover is provided on the other end, a second filter part is provided near the mesh cover inside the filter cartridge, and an activated carbon filter is provided on one side of the filter part, and the mask body is provided on one side of the activated carbon filter. An air supply plate for blowing air inward is provided, and the end of the air supply plate is sandwiched inside the filter cartridge, and the second filter part and the activated carbon filter provided in the second filter unit against the inhaled air Achieving a higher level of filtration, at the same time, the detachable connection with the snap ring makes it easy to switch between the first filter part and the second filter unit, allowing the use of filter units with different levels of filtration depending on the situation. Therefore, it can be used for multiple purposes.

In addition, the outermost layer of the second filter part is provided with filter cotton, the inside of the filter cotton is provided with an activated carbon filter layer, the inner side of the activated carbon filter layer is provided with cotton gauze, and the filter cotton is used to filter dust. And the activated carbon filter layer filters harmful gases and bacteria, and the cotton gauze provided is gentle on the skin.

In addition, the inside of the filter cartridge is provided with an inner groove that engages with the air supply plate, and the outer peripheral surface of the filter cartridge is provided with a plurality of one-way exhaust silicon valves arranged circularly and evenly. A one-way silicon valve is provided to achieve rapid exhalation of exhaled gases while avoiding the ingress of ambient air.

In addition, the surface of the air supply plate is provided with uniformly arranged ventilation holes, the middle part of the air supply plate is provided with a mounting cavity, the inside of the mounting cavity is provided with a battery, and the air supply plate Fans are installed near both ends, and the fans are electrically connected to the battery, and the battery rotates the fan to blow the face, preventing rough skin due to heat and humidity while ensuring smooth breathing.

In addition, the ear strap is fitted with a slidable and adjustable protective sleeve, the protective sleeve is made of silicone material, and the provided protective sleeve increases the contact area between the ear strap and the user's ear, The burden on the ear is reduced, and the pain in the ear is reduced.

In addition, the mask body includes a mask cloth, a nose fit wire is provided near the upper end of the mask cloth, an antistatic agent is provided on the outer surface of the mask, and a nano waterproof fabric is provided inside the antistatic agent, A water-absorbing cotton layer is provided inside the nano-waterproof cloth, and the antistatic agent prevents the electrostatic adsorption of dust. The absorbent cotton layer absorbs exhaled water vapor to ensure dryness inside the mask.

Further, the sealing ring includes an elastic vertical edge, one end of the elastic vertical edge is fixedly connected to the mask cloth by a bonding strip, and the other end of the elastic vertical edge is provided with a contact edge to contact the provided elastic vertical edge. The edge fits the contour of the face and prevents outside air from entering through the gap between the mask and the face.

Further, the buckle includes a fixed sleeve fixed to the mask cloth, the fixed sleeve is provided with a press post, and an elastic gasket is provided between the press post and the inner bottom of the fixed sleeve, and the press post has a horizontal The fixing sleeve is provided with a second through hole that fits in the first through hole, and one end of the ear strap passes through the first through hole and the second through hole, A resilient gasket pushes the press post outward to secure the pierced ear strap.

Further, a nonwoven fabric is provided outside the second filter part, a meltblown cloth is provided inside the nonwoven fabric, a spunbond nonwoven fabric is provided inside the meltblown cloth, and dust is generated by the provided nonwoven fabric and the meltblown cloth. filter.

The beneficial effects of the present invention compared to the prior art are:
1. The adjustable locking connection between the other end of the ear strap and the buckle realizes the fixing of the ear strap by the buckle, and the length of the ear strap can be adjusted to provide good flexibility to meet the different needs of users. During normal use, the first filter part filters out dust in the air, and the first filter unit is attached to the snap ring, so the first filter unit can be easily removed, and at the same time , the detachable separation of the press frame and the fixed frame allows only the first filter part to be replaced without replacing the entire mask, enabling reuse of the mask and reducing waste of resources.

2. The second filter part and the activated carbon filter installed in the second filter unit achieve a higher level of filtration for the inhaled air, and at the same time, the snap ring is detachable to connect the first filter part and the second filter. Since switching between two filter units is easy and filter units with different filtration levels can be used according to the situation, it can be used for multiple purposes.

In order to describe the technical solutions of the embodiments of the present invention more clearly, the following briefly describes the accompanying drawings used in the embodiments, and the following accompanying drawings are only specific embodiments of the present invention. should not be viewed as limiting the scope, and it should be understood that those skilled in the art can derive other relevant accompanying drawings based on these drawings without creative effort. .

FIG. 1 is a first structural schematic diagram of a mask with an easy-to-replace filter unit according to the present invention. FIG. 2 is a second structural schematic view of the mask with easy to replace filter unit shown in the present invention. FIG. 3 is a schematic view of the mask body of the mask with easy to replace filter unit shown in the present invention. FIG. 4 is a structural schematic diagram of a mask cloth of a mask with an easy-to-replace filter unit shown in the present invention. FIG. 5 is a schematic view of a mask seal ring that facilitates replacement of the filter unit shown in the present invention. FIG. 6 is a schematic view of the first filter unit of the easy-to-replace filter unit mask shown in the present invention. FIG. 7 is a schematic view of the first filter part of the mask with easy to replace filter unit shown in the present invention. FIG. 8 is a schematic illustration of the outer frame of a mask that facilitates replacement of the filter unit shown in the present invention. FIG. 9 is a schematic view of the ear straps of a mask that facilitates replacement of the filter unit shown in the present invention. FIG. 10 is a schematic view of the second filter unit of the easy-to-replace filter unit mask shown in the present invention. FIG. 11 is a schematic view of the second filter part of the mask with easy to replace filter unit shown in the present invention. FIG. 12 is a schematic view of the filter cartridge of the mask with easy to replace filter unit shown in the present invention. FIG. 13 is a schematic view of the air supply plate of the mask with easy to replace filter unit shown in the present invention.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following will clarify the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. While fully described, it should be understood that the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by persons skilled in the art based on the embodiments in the present invention without ingenuity fall within the protection scope of the present invention. Accordingly, the following detailed description of embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely provides selected embodiments of the invention. It is intended to indicate

Example 1
Specifically, as shown in FIGS. 1 and 3, the mask, which facilitates replacement of the filter unit, includes a mask body 2, a mounting cavity 23 is provided in the middle of the mask body 2, and an edge of the mounting cavity 23 is provided. , an annular snap groove 221 is provided inside the snap ring 22, ear straps 1 are provided on both left and right ends of the mask body 2, and one end of the ear strap 1 is fixedly connected to the mask body 2. A buckle 5 is provided at both ends near the lower edge of the mask body 2, and the buckle 5 is connected to the other end of the ear strap 1 in an adjustable locking manner. A protruding seal ring 3 made of silicone material is provided on the face, and the provided seal ring 3 prevents outside air from entering through the gap between the mask and the face when inhaling and affecting the filtering effect of the mask. , the first filter unit 4 is sandwiched inside the snap ring 22, and the other end of the ear strap 1 and the buckle 5 are adjustable and locked, thereby realizing the fixing of the ear strap 1 by the buckle 5 and the ear strap 1. The length of the can be adjusted and used with good flexibility to meet the different needs of the user.

Specifically, as shown in FIGS. 6 and 8, the first filter unit 4 includes a frame 41 sandwiched inside the snap ring 22, and the outer circumference of the frame 41 is provided with an annular protrusion that fits into the snap groove 221. The first filter part 42 is fixed inside the frame 41, the frame 41 includes a press frame 411 and a fixed frame 412, and the fixed frame 412 has a placement groove 413 on the side facing the press frame 411. The end of the first filter part 42 is sandwiched in the arrangement groove 413, the press frame 411 is fixed by the arrangement groove 413, and the first filter part 42 is pressed and fixed. A plurality of plugs 414 are arranged in an array, and the fixed frame 412 is provided with sockets 415 that fit into the plugs 414, and during normal use, the first filter part 42 filters the dust in the air, and the first filter unit 4 is sandwiched by the snap ring 22, the first filter unit 4 can be easily removed, and at the same time, the detachable separation of the press frame 411 and the fixed frame 412 allows the first filter part to be replaced without replacing the entire mask. 42 can be replaced, allowing reuse of the mask and reducing waste of resources.

Specifically, as shown in FIGS. 1 and 2, the ear strap 1 is fitted with a slidable and adjustable protective sleeve 11, the protective sleeve 11 is made of silicone material, and the provided protective sleeve 11 The contact area between the ear strap 1 and the user's ear is increased, the burden on the ear is reduced, and the ear pain is reduced.

Specifically, as shown in FIGS. 3 and 4, the mask body 2 includes a mask cloth 21, a nose fit wire 24 is provided near the upper end of the mask cloth 21, and an antistatic agent 211 is applied to the outer surface of the mask 21. A nano waterproof cloth 212 is provided inside the antistatic agent 211, a water-absorbent cotton layer 213 is provided inside the nano waterproof cloth 212, and the antistatic agent 211 prevents dust from being electrostatically adsorbed, The provided nano-waterproof cloth 212 has excellent antifouling and waterproof performance, and the provided water-absorbing cotton layer 213 absorbs the exhaled water vapor to ensure drying inside the mask.

Specifically, as shown in FIG. 5, the sealing ring 3 includes an elastic vertical edge 33, one end of which is fixedly connected to the mask cloth 21 by a bonding strip 32, and the other end of the elastic vertical edge 33 is A contacting edge 31 is provided which closely conforms to the contours of the face by means of the provided elastic vertical edge 33 and the contacting edge 31 to prevent outside air from entering through the gap between the mask and the face.

Specifically, as shown in FIG. 9, the buckle 5 includes a fixed sleeve 53 fixed to the mask cloth 21, the fixed sleeve 53 is provided with a press post 51, and the inner bottom of the press post 51 and the fixed sleeve 53 The press post 51 is provided with a first through hole 54 penetrating in the horizontal direction, and the fixing sleeve 53 is provided with a second through hole 55 that fits into the first through hole 54. When one end of the ear strap 1 passes through the first through hole 54 and the second through hole 55, the elastic gasket 52 pushes the press post 51 outward to fix the ear strap 1 passed therethrough.

Specifically, as shown in FIG. 7, a nonwoven fabric 421 is provided outside the second filter part 42, a meltblown fabric 422 is provided inside the nonwoven fabric 421, and a spunbond nonwoven fabric is provided inside the meltblown fabric 422. 423 is provided, the provided spunbond non-woven fabric 423 is skin-friendly and improves the wearing comfort of the mask, and the provided non-woven fabric 421 and meltblown fabric 422 filter dust.

Example 2
Specifically, as shown in FIGS. 2 and 10, the second filter unit 6 is sandwiched inside the snap ring 22, the second filter unit 6 includes a filter cartridge 62, and the outer edge of one end of the filter cartridge 62 An annular protrusion that fits into the snap groove 221 is provided, a mesh cover 63 is provided at the other end of the filter cartridge 62, and a second filter part 65 is provided near the mesh cover 63 inside the filter cartridge 62. An activated carbon filter 64 is provided on one side of the filter part 65, an air supply plate 61 for blowing air into the mask main body 2 is provided on one side of the activated carbon filter 64, and an end of the air supply plate 61 is connected to the filter. The second filter part 65 and the activated carbon filter 64, which are sandwiched inside the cartridge 62 and installed in the second filter unit 6, achieve a higher level of filtration of the inhaled air, and at the same time are detachable from the snap ring 22. The connection makes it easy to switch between the first filter part 42 and the second filter unit 6, and filter units with different filtration levels can be used depending on the situation, so it can be used for multiple purposes.

Specifically, as shown in FIG. 11, the outermost layer of the second filter part 65 is provided with a filter cotton 651, the inside of the filter cotton 651 is provided with an activated carbon filter layer 652, and the inside of the activated carbon filter layer 652 is A cotton gauze 653 is provided, the filter cotton 651 filters dust, and the activated carbon filter layer 652 filters harmful gases and bacteria, and the provided cotton gauze 653 is gentle on the skin.

Specifically, as shown in FIG. 12 , an inner groove 622 that engages with the air supply plate 61 is provided inside the filter cartridge 62 , and a plurality of circular and evenly arranged grooves 622 are provided on the outer peripheral surface of the filter cartridge 62 . A one-way silicon valve 621 for one-way exhaust is provided, and the provided one-way silicon valve 621 achieves rapid discharge of exhaled gas while avoiding the intrusion of outside air.

Specifically, as shown in FIG. 13, the surface of the air supply plate 61 is provided with uniformly arranged ventilation holes, and the middle portion of the air supply plate 61 is provided with a mounting cavity 611. A battery 612 is provided inside, a fan 613 is provided near both ends of the air supply plate 61, the fan 613 is electrically connected to the battery 612, and the battery 612 rotates the fan 613 to blow the face to heat the face. Ensures smooth breathing while preventing rough skin on the face due to humidity.

The working principle is as follows,
During normal use, press the press post 51 to adjust the length of the ear strap 1 until it has just the right amount of elasticity and a comfortable feeling of wearing. The mask is worn by fitting the protective sleeve 11 to the ear hook part, the gap between the mask and the face is sealed by the seal ring 3 during wearing, and the air is normally filtered by the first filter part 42 during breathing. , when replacing the first filter part 42, after removing the first filter unit 4, replace the first filter part 42 by removing the pressing frame 411 and the fixing frame 412, so that the need for higher filtration requirements In this case, the first filter unit 4 is removed, the second filter unit 6 is attached inside the snap ring 22, and the switch at the place where the fan 613 and the battery 612 are electrically connected on the air supply plate 61 is turned on during use. The fan 613 is turned on to operate the fan 613, and the fan 613 continuously blows the filtered air from the outside to the face to keep the face cool. 64 realizes filtration and sterilization of harmful gases and bacteria in the air, filters and purifies the air, and discharges exhaled carbon dioxide to the outside through the one-way silicon valve 621 during exhalation.

The device obtained by the above design can basically meet the multifunctional use of traditional masks, can be reused to avoid causing waste of resources, and has excellent flexibility of use. , with the aim of further improving its functionality, the designers have made further improvements to the device.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention, and the present invention may have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Here, 1 - ear strap, 11 - protective sleeve, 2 - mask body, 21 - mask cloth, 211 - antistatic agent, 212 - nano waterproof cloth, 213 - absorbent cotton layer, 22 - snap ring, 221 - snap groove, 23 - mounting cavity, 24 - nose fit wire, 3 - sealing ring, 31 - contact edge, 32 - bonding strip, 33 - elastic vertical edge, 4 - first filter unit, 41 - frame, 411 - press frame, 412 - fixing frame, 413 - locating groove, 414 - plug, 415 - socket, 42 - first filter part, 421 - nonwoven fabric, 422 - meltblown fabric, 423 - spunbond nonwoven fabric, 5 - buckle, 51 - press post, 52 - elastic gasket, 53 - fixing sleeve, 54 - first through hole, 55 - second through hole, 6 - second filter unit, 61 - air supply plate, 611 - mounting cavity, 612 - battery, 613 - fan, 62 - filter cartridge, 621 - one-way silicone valve, 622 - inner groove, 63 - mesh cover, 64 - activated carbon filter, 65 - second filter part, 651 - filter cotton, 652 - activated carbon filter layer, 653 - cotton gauze.

Claims (6)

A mask for easy filter unit replacement, comprising a mask body (2) and a second filter unit (6), wherein a mounting cavity (23) is provided in the middle of said mask body (2), and a mounting cavity (23) ), an annular snap groove (221) is provided inside the snap ring (22), and ear straps (1) are attached to the left and right ends of the mask body (2). One end of the ear string (1) is fixedly connected to the mask body (2), and buckles (5) are provided at both ends near the lower edge of the mask body (2), and the buckles (5) are ear strings. (1) is connected to the other end in an adjustable locking manner, the front of said mask body (2) is provided with a raised seal ring (3) made of silicone material near the peripheral edge, said snap A second filter unit (6) is sandwiched inside the ring (22),
The second filter unit (6) includes a filter cartridge (62), an outer edge of one end of the filter cartridge (62) is provided with an annular protrusion that fits into a snap groove (221), and the filter cartridge (62) is ) is provided with a mesh cover (63) at the other end of the filter cartridge (62), a second filter part (65) is provided near the mesh cover (63) inside the filter cartridge (62), and the filter part (65) An activated carbon filter (64) is provided on one side of the activated carbon filter (64), an air supply plate (61) for blowing air to the inside of the mask body (2) is provided on one side of the activated carbon filter (64), and the air supply plate (61) is sandwiched inside the filter cartridge (62) ,
The outermost layer of the second filter part (65) is provided with a filtering cotton (651), the inner side of the filtering cotton (651) is provided with an activated carbon filter layer (652), and the inner side of the activated carbon filter layer (652) is provided with cotton gauze (653),
The inside of the filter cartridge (62) is provided with an inner groove (622) that engages with the air supply plate (61). A one-way silicon valve (621) is provided for one-way exhaust,
A mask with a filter unit that is easy to replace. The surface of the air supply plate (61) is provided with uniformly arranged ventilation holes, the middle part of the air supply plate (61) is provided with a mounting cavity (611), and the mounting cavity (611) is provided with A battery (612) is installed inside, a fan (613) is installed near both ends of the air supply plate (61), and the fan (613) is electrically connected to the battery (612). The mask according to claim 1 , wherein the filter unit is easy to replace. 3. Replacement filter unit according to claim 2 , characterized in that the ear strap (1) is fitted with a slidable and adjustable protective sleeve (11), and the protective sleeve (11) is made of silicone material. Easy mask. The mask body (2) includes a mask cloth (21), a nose fit wire (24) is provided near the upper end of the mask cloth (21), and an antistatic agent (211) is applied to the outer surface of the mask (21). is provided, a nano-waterproof cloth (212) is provided inside the antistatic agent (211), and a water-absorbent cotton layer (213) is provided inside the nano-waterproof cloth (212) Item 3. A mask in which the filter unit according to Item 3 can be easily replaced. Said sealing ring (3) comprises an elastic vertical edge (33), one end of said elastic vertical edge (33) is fixedly connected to the mask cloth (21) by a bonding strip (32), and the elastic vertical edge (33) is 5. Mask for easy exchange of filter units according to claim 4 , characterized in that the other end is provided with a contact edge (31). The buckle (5) comprises a fixing sleeve (53) fixed to the mask cloth (21), the fixing sleeve (53) is provided with a press post (51), and the press post (51) and the fixing sleeve An elastic gasket (52) is provided between the inner bottom of (53), the press post (51) is provided with a first through hole (54) penetrating horizontally, and the fixing sleeve (53) is provided with a first through hole (54). 6. The mask for easy replacement of the filter unit according to claim 5 , characterized in that it is provided with a second through-hole (55) that fits into the first through-hole (54).

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