TWI683684B - Mask - Google Patents

Abstract

The invention relates to the technical field of dust filtration, in particular to a mask. The mask includes a supporting device, a filter element and a protective device and a sealing ring; the supporting device fixedly supports the filter element, the protective device is provided on one side of the supporting device for protecting the filter element, the supporting device The other side is provided with a sealing ring for fitting with the human face. In the mask provided by the present invention, when the user needs to replace the filter element, the user only needs to replace the filter element without replacing the entire mask, which is convenient for the user to use.

Description

Mask

The invention relates to the technical field of dust filtration, in particular to a mask.

With the continuous improvement of my country's industrial standards, my country's environmental pollution has become more and more serious. The waste gas produced by industrial production is discharged into the air, which makes the air pollutants more and more, and the danger to the human body gradually increases. Especially in the smog phenomenon that has appeared in recent years, the increasing value of PM2.5 makes people have to carry anti-fog masks with them.

The anti-fog mask in the prior art includes a filter layer and two fixing ropes. The two fixing ropes are elongated and are respectively arranged at both ends of the filter layer. The user fixes two fixing ropes on the ears, and the filter layer covers the face of the human body, so that the nose and lips of the human body are wrapped in the filter layer. The filter layer filters the inhaled air of the human body to realize the anti-fog and haze function of the mask.

However, the mask in the prior art is disposable. When the user needs to replace the filter layer, the user needs to replace the entire mask, which is not convenient for the user.

The purpose of the present invention is to provide a mask to solve the technical problem existing in the prior art that when the user needs to replace the filter part, the user needs to replace the entire mask, which is inconvenient for the user to use.

The invention provides a mask, including: a supporting device, a filter element, a protection device and a sealing ring; the support device fixedly supports the filter element, and the protection device is provided on one side of the support device to protect the filter element, so The other side of the support device is provided with a sealing ring for fitting with the human face.

Further, the protective device includes a protective plate; one side of the protective plate is fixedly connected to the side of the upper bracket away from the filter core, and the other side of the protective plate is fixedly connected to the fixing device.

Further, the mask further includes a fixing device; the fixing device is used to fix the support device on the human face.

Further, the fixing device includes a fixing cloth; the fixing cloth is in a band shape; one side of the fixing cloth is fixedly connected to the protective plate; one end of the fixing cloth is detachably fixedly connected to the other end The lower support frame is fixed on the human face.

Further, an installation cavity in which the protective plate is installed is provided in the fixed cloth; the installation gap is provided in a position corresponding to the installation cavity of the fixed cloth.

Further, the supporting device includes an upper bracket and a lower bracket; the upper bracket is fixedly connected to the lower bracket; a mask is provided between the upper bracket and the lower bracket to support the mask; the lower bracket is used to Fixed on the human face.

Further, the upper bracket includes a triangular upper support frame; the lower bracket includes a triangular lower support frame; the upper support frame and the lower support frame are fixedly connected, and the upper support frame and the lower support frame The support frame is used to fix the edge of the mask.

Further, a lower support member is provided on the lower support frame, and/or an upper support member is provided on the upper support frame.

Further, the lower support includes a first lower support bar, a second lower support bar, and a third lower support bar; one end of the first lower support bar and one end of the second lower support bar are all connected with the One end of the third lower support bar is connected; the other end of the first lower support bar, the other end of the second lower support bar and the other end of the third lower support bar are respectively connected to one of the lower support frames Connection at the bend; the connection of the first lower support bar, the second lower support bar, and the third lower support bar protrudes from the lower support frame toward the upper support frame; and /Or, the upper support member includes a first upper support bar, a second upper support bar, and a third upper support bar; one end of the first upper support bar and one end of the second upper support bar are all connected with the One end of the third upper support bar is connected; the other end of the first upper support bar, the other end of the second upper support bar and the other end of the third upper support bar are respectively connected to one of the upper support frames Connection at the bend; the connection of the first upper support bar, the second upper support bar, and the third upper support bar protrudes from the upper support frame in a direction away from the lower support frame.

Further, the lower support member further includes two fourth lower support rods arranged at an acute angle; one end of the two fourth lower support rods is connected to one end of the third lower support rod, and two The other end of the fourth lower support rod is connected to the lower support frame.

Further, the first lower support bar, the second lower support bar, and the fourth lower support bar are all arc-shaped, and the first lower support bar, the second lower support bar, and the The fourth lower support bars are all bent toward the upper support frame.

Further, on the upper support frame, an annular fixing protrusion is provided along the circumferential direction of the upper support frame; on the lower support frame, along the circumferential direction of the lower support frame, an An annular fixing groove matched with the fixing protrusion; an edge of the mask is provided between the annular fixing protrusion and the annular fixing groove.

Further, an engagement protrusion is provided on all three sides of the lower support frame; an engagement hole matching with the engagement protrusion is provided on all three sides of the upper support frame.

Further, a ring seal is provided on a side of the lower support frame away from the upper support frame.

Further, the filter element includes a filter element body; the filter element body includes an outer filter layer and an inner filter layer; the outer filter layer and the inner filter layer are sequentially stacked from outside to inside; the outer filter layer and the filter element The inner filter layer is used to filter particulate dirt, and the particles filtered by the outer filter layer are larger than the particles filtered by the inner filter layer.

Further, the filter element further includes a shaping layer; the shaping layer is disposed on a side of the inner filter layer away from the outer filter layer, and is used to shape the filter body.

Further, the edge of the filter body is bent outward to form a fixed curling edge for fixing on the mask.

Further, the inner filter layer includes at least one filter cotton layer.

Further, the filter cotton layer is electrostatic filter core cotton.

Further, the material of the outer filter layer is PP spunbond cloth.

Further, the material of the shaping layer is knitted cotton.

Further, the filter element body has an arc-shaped cross section.

Further, the filter body is triangular.

When using the mask provided by the present invention, the user fits the sealing ring to the face, and the supporting device supports and protects the filter element so that the filter element can wrap the nose and lips of the human body. Filter out particles in the gas. When the user needs to replace the filter element, the user can disassemble the support device, then take out the old filter element, fix the new filter element in the support device, and continue to use.

In the mask provided by the present invention, when the user needs to replace the filter element, the user only needs to replace the filter element without replacing the entire mask, which is convenient for the user to use.

1‧‧‧Upper bracket

2‧‧‧Lower bracket

3‧‧‧Protection board

4‧‧‧Fixed parts

5‧‧‧Fixed cloth

6‧‧‧Installation cavity

7‧‧‧ Installation gap

8‧‧‧ connection structure

81‧‧‧First connection

82‧‧‧Second connection

9‧‧‧Filter body

11‧‧‧Upper support frame

12‧‧‧Upper support

13‧‧‧Snap hole

14‧‧‧Perforation

15‧‧‧Annular fixed protrusion

21‧‧‧Lower support frame

22‧‧‧Lower support

23‧‧‧Snap protrusion

24‧‧‧Annular fixing groove

41‧‧‧Card slot

42‧‧‧Fixed rod

91‧‧‧Outer filter layer

92‧‧‧Inner filter layer

93‧‧‧Shaped layer

121‧‧‧First support rod

122‧‧‧Second upper support rod

123‧‧‧The third upper support rod

124‧‧‧The fourth upper support rod

221‧‧‧First lower support rod

222‧‧‧second lower support rod

223‧‧‧The third lower support rod

224‧‧‧The fourth lower support rod

921‧‧‧First filter layer

922‧‧‧Second filter layer

10‧‧‧Seal

In order to more clearly explain the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required in the specific embodiments or the description of the prior art. Obviously, the drawings in the following description are For some embodiments of the present invention, for those of ordinary skill in the art, without paying any creative labor, other drawings may be obtained based on these drawings.

1 is a schematic structural view of a mask provided by an embodiment of the present invention; FIG. 2 is a structural schematic view of a supporting device in a mask provided by an embodiment of the present invention; FIG. 3 is a main structure of an upper bracket in the supporting device provided by an embodiment of the present invention Figure 4 is a left side view of the upper bracket shown in Figure 3; Figure 5 is an axonometric view of the upper bracket shown in Figure 3; Figure 6 is another schematic structural view of the upper bracket shown in Figure 3; Figure 7 is Front view of the lower bracket in the supporting device provided by the embodiment of the present invention; FIG. 8 is a left side view of the lower bracket shown in FIG. 7; FIG. 9 is a schematic structural view of a protective plate in a mask provided by an embodiment of the present invention; FIG. 10 9 is another schematic structural view of the protective plate shown in FIG. 9; FIG. 11 is another structural schematic view of the protective plate shown in FIG. 9; FIG. 12 is a schematic structural view of a fixed cloth in a mask provided by an embodiment of the present invention; 12 is another schematic structural diagram of the fixed cloth shown in FIG. 12; FIG. 14 is another schematic structural diagram of the fixed cloth shown in FIG. 12; FIG. 15 is a schematic structural diagram of a filter element in a mask provided by an embodiment of the present invention; Another structural diagram of the filter element shown in FIG. 15.

The technical solutions of the present invention will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "level", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, just to facilitate the description of the present invention and simplify the description, rather than to indicate or imply that the device or element referred to must have a specific orientation, a specific orientation The construction and operation cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", and "third" are for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be fixed connection or detachable Connected, or connected integrally; either mechanically or electrically; directly connected, or indirectly connected through an intermediary, or internally connected between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

1 is a schematic structural view of a mask provided by an embodiment of the present invention; as shown in FIG. 1, this embodiment provides a mask including: a supporting device, a filter element and a protective device and a sealing ring; the supporting device fixedly supports the filter element and protects The device is provided on one side of the support device for protecting the filter element, and the other side of the support device is provided with a sealing ring for fitting with the human face.

In the mask provided in this embodiment, when using, the user fits the sealing ring to the face, and the supporting device supports and protects the filter element, so that the filter element can wrap the nose and lips of the human body, and the filter element plays a filtering role. Can filter out particles in the gas. When the user needs to replace the filter element, the user can disassemble the support device, then take out the old filter element, fix the new filter element in the support device, and continue to use.

In the mask provided by the present invention, when the user needs to replace the filter element, the user only needs to replace the filter element without replacing the entire mask, which is convenient for the user to use.

2 is a schematic structural view of a support device in a mask provided by an embodiment of the present invention; FIG. 3 is a front view of an upper bracket in the support device provided by an embodiment of the present invention; FIG. 4 is a left side view of the upper bracket shown in FIG. 3 Figure 5 is an axonometric view of the upper bracket shown in Figure 3; Figure 6 is another schematic structural view of the upper bracket shown in Figure 3; Figure 7 is a front view of the lower bracket in the support device provided by an embodiment of the present invention; Figure 8 is a left side view of the lower bracket shown in Figure 7; as shown in Figure 2-8, based on the above embodiment, further, the support device includes an upper bracket 1 and a lower bracket 2; the upper bracket 1 and The lower bracket 2 is detachably fixedly connected; the filter element is detachably fixed between the upper bracket 1 and the lower bracket 2; the protective device is fixedly connected to the side of the upper bracket away from the filter core; the side of the lower bracket away from the filter core is provided with a sealing ring 10 .

In this embodiment, when replacing the filter element, the upper bracket 1 and the lower bracket 2 can be disassembled, and the old filter element can be replaced. After the replacement, the upper bracket 1 and the lower bracket 2 can be connected. Easy to install and use.

In this embodiment, the supporting device includes an upper bracket 1 and a lower bracket 2, the filter element is disposed between the upper bracket 1 and the lower bracket 2, and the upper bracket 1 and the lower bracket 2 support the filter element, and then the user supports the lower bracket 2 Fixed on the human face.

In this embodiment, since the filter element is disposed between the upper bracket 1 and the lower bracket 2, when the external force or the user's breathing force is applied, the filter element will not be deformed due to the support effect of the upper bracket 1 and the lower bracket 2.

The material of the upper bracket 1 and the lower bracket 2 can be transparent plastic. Due to the lighter plastic quality, when the lower bracket 2 is fixed on the human face, the gravity of the human head is less, which makes the fixing device lighter.

As shown in FIGS. 2-8, on the basis of the above embodiment, further, the upper bracket 1 includes a triangular upper support frame 11; the lower bracket 2 includes a triangular lower support frame 21; the upper support frame 11 and the lower The support frame 21 is fixedly connected, and the upper support frame 11 and the lower support frame 21 are used to fix the edge of the filter element.

The triangle in this embodiment refers to a triangular structure as a whole. The triangle bends of the upper support frame 11 and the lower support frame 21 may be arc-shaped.

In this embodiment, the upper bracket 1 is set as the upper support frame 11 and the lower bracket 2 is set as the lower support frame 21. In use, the filter element is arranged between the upper support frame 11 and the lower support frame 21, and the edge of the filter element is fixed at Between the upper support frame 11 and the lower support frame 21.

In this embodiment, the edge of the filter element is fixed by the upper support frame 11 and the lower support frame 21, so that the filter element can be firmly fixed between the upper bracket 1 and the lower bracket 2.

As shown in FIGS. 2-8, on the basis of the above embodiment, further, the upper support frame 11 and the lower support frame 21 may be triangular or in other shapes. Preferably, the upper support frame 11 and the lower support frame 21 are triangles. The upper support frame 11 and the lower support frame 21 are set in a triangle shape, which is consistent with the shape of the filter element, so that the upper support frame 11 and the lower support frame 21 can be closely connected with the edge of the filter element, and the filter element is firmly fixed. At the same time, the area of the lower support frame 21 covering the face of the human body is also reduced, and user comfort is improved.

As shown in FIGS. 2-8, on the basis of the above embodiment, further, a lower support 22 is provided on the lower support frame 21, and/or an upper support 12 is provided on the upper support frame 11.

In this embodiment, when in use, the filter element is disposed between the upper support 12 and the lower support 22 of the upper support frame 11 and the lower support frame 21, and the edge of the filter element is fixed between the upper support frame 11 and the lower support frame 21. The upper support member 12 and the lower support member 22 are respectively in contact with both sides of the filter element, thereby supporting the filter element to be spread out, so that the filter element can completely cover the user's nose and lips, and the external air is filtered by the filter element and enters the human nasal cavity.

The structure forms of the upper support 12 and the lower support 22 can be various, for example, the upper support 12 and the lower support 22 are both support nets, and the external air flows into the filter element through the gaps of the support nets, the user exhales The gas also flows out from the gap of the support net, which can make the air flow smooth and improve the comfort of the user.

The upper support 12 and the lower support 22 may each include three or other numbers of multiple support rods. Preferably, the upper support 12 and the lower support 22 each include three support rods.

As shown in FIGS. 2-8, based on the above embodiment, further, the lower support 22 includes a first lower support bar 221, a second lower support bar 222, and a third lower support bar 223; the first lower support One end of the rod 221 and one end of the second lower support rod 222 are connected to one end of the third lower support rod 223; the other end of the first lower support rod 221, the other end of the second lower support rod 222 and the third lower support rod The other ends of 223 are respectively connected to a bend of the lower support frame 21; the connection points of the first lower support bar 221, the second lower support bar 222, and the third lower support bar 223 project toward the upper support frame 11于下支持架21。 The lower support frame 21.

In this embodiment, the connection between the first lower support bar 221, the second lower support bar 222, and the third lower support bar 223 protrudes toward the upper support frame 11 and the lower support frame 21, that is, the lower support 22 One side away from the upper bracket 1 is an inner concave surface, and the other side is an outer convex surface. The outer convex surface can support the filter element in the direction of the upper support frame 11 so that the filter element can be fully expanded. At the same time, the concave space formed by the concave surface of the lower support 22 can accommodate the nose and lips of the user without causing the nose and lips to contact the lower support 22 and hinder the user from breathing and speaking.

In addition, the lower support 22 is provided as three support rods, and the interval between the three support rods is that the external air passes through the filter element and then enters the human nasal cavity through the interval between the three support rods, or the air exhaled by the user The spacing between the two support rods then flows out through the filter element. Since the support members are rod-shaped, the intervals on the support members are relatively large, so as to prevent the support members from obstructing the air circulation, thereby making the air circulation smoother and further improving user comfort.

The shapes of the first lower support bar 221, the second lower support bar 222, and the third lower support bar 223 may be various types, such as a linear shape, an arc shape, or a curved shape.

The material of the first lower support bar 221, the second lower support bar 222, and the third lower support bar 223 may be transparent plastic. The first lower support bar 221, the second lower support bar 222, the third lower support bar 223, and the lower support The frame 21 is integrally connected to enhance the connection strength and extend the service life.

As shown in FIGS. 2-8, based on the above embodiment, further, the upper support 12 includes a first upper support bar 121, a second upper support bar 122, and a third upper support bar 123; the first upper support One end of the rod 121 and one end of the second upper support rod 122 are connected to one end of the third upper support rod 123; the other end of the first upper support rod 121, the other end of the second upper support rod 122 and the third upper support rod The other ends of 123 are respectively connected to a bend of the upper support frame 11; the connection of the first upper support bar 121, the second upper support bar 122, and the third upper support bar 123 protrudes away from the lower support frame 21于上支持架11。 The upper support frame 11.

In this embodiment, the connection between the first upper support bar 121, the second upper support bar 122, and the third upper support bar 123 projects away from the lower support frame 21 and the upper support frame 11, that is, the upper support 12 One side close to the lower bracket 2 is an inner concave surface, and the other side is an outer convex surface. The side of the lower support 22 away from the upper bracket 1 is an inner concave surface, and the other side is an outer convex surface. That is, the lower support 22 and the upper support 12 protrude in the same direction. The filter element is located between the upper support member 12 and the lower support member 22, so that the upper support member 12 and the lower support member 22 can closely fit the filter element, so that the filter element is symmetrically balanced by the force. At the same time, the space occupied by the upper bracket 1 and the lower bracket 2 is also reduced, which is convenient for users to carry.

In addition, the upper support 12 is provided as three support rods, with a space between the three support rods. The external air passes through the space between the three support rods, passes through the filter core, and then enters the human nasal cavity, or the air exhaled by the user The space between the three support rods then flows out through the filter element. Since the support member is rod-shaped, the interval between the three support rods is relatively large, that is, the gap on the upper support member 12 is relatively large, to prevent the upper support member 12 from obstructing the air circulation, thereby making the air circulation smoother and further improving the use Comfort.

Preferably, the first upper support bar 121, the second upper support bar 122, and the third upper support bar 123 are provided in a one-to-one correspondence with the first lower support bar 221, the second lower support bar 222, and the third support bar. In this way, the stress of the filter element can be balanced symmetrically, and the stability of the filter element can be improved.

As shown in FIGS. 2-8, on the basis of the above embodiment, further, the lower support 22 further includes two fourth lower support rods 224 arranged at an acute angle; both ends of the two fourth lower support rods 224 are One end of the third lower support bar 223 is connected, and the other ends of the two fourth lower support bars 224 are connected to the lower support frame 21.

In this embodiment, one end of the third lower support bar 223 is connected to the first lower support bar 221 and the second lower support bar 222, and the other end of the third lower support bar 223 is connected to the two fourth lower support bars 224. That is, the third lower support rod 223 is connected to the lower support frame 21 through two third lower support rods 223, and the two fourth lower support rods 224 are arranged at an acute angle. The support bar 224 connects the third lower support bar 223 and the lower support frame 21 so that the user's nose is located at the interval between the two fourth lower support bars 224 and does not support the user's nose and the lower support frame 224 The contact of the piece 22 improves user comfort.

Further, the width of the connection between the first upper support bar 121 and the upper support frame 11 is greater than the width of the first upper support bar 121. The width of the connection between the second upper support bar 122 and the upper support frame 11 is greater than the width of the second upper support bar 122. The width of the connection between the first upper support bar 121, the second upper support bar 122 and the third upper support bar 123 is larger than the width of the first upper support bar 121, the second upper support bar 122 and the third upper support bar 123. The width of the connection between the third support bar 123 and the fourth support bar 124 is larger than the width of the third support bar 123 and the fourth support bar 124. In this way, the connection strength between the first upper support bar 121, the second upper support bar 122 and the upper support frame 11 can be enhanced, and the connection strength between the third upper support bar 123 and the fourth upper support bar 124 can be enhanced to minimize the number of support bars. Quantity to achieve maximum carrying capacity.

Further, the width of the connection between the first lower support bar 221 and the lower support frame 21 is greater than the width of the first lower support bar 221. The width of the connection between the second lower support bar 222 and the lower support frame 21 is greater than the width of the second lower support bar 222. The width of the connection between the first lower support bar 221, the second lower support bar 222 and the third lower support bar 223 is larger than the width of the first lower support bar 221, the second lower support bar 222 and the third lower support bar 223. The width of the connection between the third support bar 223 and the fourth support bar 224 is larger than the width of the third support bar 223 and the fourth support bar 224. In this way, the connection strength of the first lower support bar 221, the second lower support bar 222 and the lower support frame 21 can be enhanced, and the connection strength of the third lower support bar 223 and the fourth lower support bar 224 can be enhanced to minimize the number of support bars Quantity to achieve maximum carrying capacity. In this way, the upper and lower support rods can be combined more closely, and at the same time, the self-weight can be effectively reduced and the appearance can be more beautiful.

Wherein, the upper support 12 may further include two fourth upper support rods 124 disposed at an acute angle, one end of the two fourth upper support rods 124 is connected to one end of the third upper support rod 123, and two fourth upper support rods The other end of the rod 124 is connected to the upper support frame 11. Preferably, the two fourth upper support rods 124 and the two fourth lower support rods 224 are provided in a one-to-one correspondence, so that the filter element is symmetrically balanced and the filter element is more stable between the upper bracket 1 and the lower bracket 2.

In addition, the presence of the fourth upper support bar 124 makes the third upper support bar 123 have stronger structural stability at the connection node with the first upper support bar 121 and the second upper support bar 122, and the fourth lower support bar The existence of 224 makes the third lower support rod 223 have stronger structural stability at the connection node with the first lower support rod 221 and the second lower support rod 222, so as to resist greater stress.

As shown in FIGS. 2-8, on the basis of the above embodiment, further, the first lower support bar 221, the second lower support bar 222, and the fourth lower support bar 224 are all arc-shaped, and the first lower support The rod 221, the second lower support rod 222, and the fourth lower support rod 224 are all bent toward the upper support frame 11.

In this embodiment, the first lower support bar 221, the second lower support bar 222, and the fourth lower support bar 224 all bend toward the upper support frame 11, that is, the first lower support bar 221, the second lower support The rod 222 and the fourth lower support rod 224 support the filter element outward, thereby fully supporting the filter element.

Further, the first upper support bar 121, the second upper support bar 122, and the fourth upper support bar 124 are all curved, and the first upper support bar 121, the second upper support bar 122, and the fourth upper support bar 124 are all Bend in a direction away from the upper support frame 11. At this time, the bending directions of the first upper support bar 121, the second upper support bar 122, and the fourth upper support bar 124 are consistent with the first lower support bar 221, the second lower support bar 222, and the fourth lower support bar 224, which can be more Support the filter element firmly.

As shown in FIGS. 2-8, on the basis of the above embodiment, further, on the upper support frame 11, along the circumferential direction of the upper support frame 11, an annular fixing protrusion 15 is provided; on the lower support frame 21, along The circumferential direction of the lower support frame 21 is provided with an annular fixing groove 24 cooperating with the annular fixing protrusion 15; the annular fixing protrusion 15 and the annular fixing groove 24 are used to set the edge of the filter element.

In this embodiment, the user first places the filter element on the lower bracket 2, and then snaps the ring-shaped fixing protrusion 15 in the ring-shaped fixing groove 24, and the edge of the filter element is stuck in the fixing groove, thereby fixing the filter element. The user can disassemble the upper bracket 1 and the lower bracket 2 to replace the filter element, which is convenient for use.

Preferably, the cross-sectional shape of the ring-shaped fixing groove 24 is arc-shaped, and the edge of the filter element is arranged in the ring-shaped fixing groove 24 and can be pressed into an arc shape by the ring-shaped fixing protrusion 15, thereby improving the fixing effect on the filter element.

Further, an upper groove may be provided on the side of the upper support frame 11 close to the lower support frame 21, and a lower groove may be provided on the side of the lower support frame 21 away from the upper support frame 11, that is, the openings of the upper groove and the lower groove The direction is the same, the filter element can be fixed in the upper groove to achieve the sealing effect.

As shown in FIGS. 2-8, on the basis of the above embodiment, further, an engagement protrusion 23 is provided on each of the three sides of the lower support frame 21; one is provided on each of the three sides of the upper support frame 11 The engaging hole 13 cooperates with the engaging protrusion 23.

In this embodiment, three engaging protrusions 23 are respectively provided on three sides of the lower support frame 21, and the three engaging protrusions 23 form a triangle, and the triangle forms an inverse triangle with the triangle of the lower support frame 21, that is, the card The three vertices of the triangle joining the protrusions 23 are respectively on the three sides of the triangle of the lower support frame 21. Similarly, the triangle formed by the three cards and the holes also forms an inverse triangle with the triangle of the upper support frame 11. When the user engages the three engaging protrusions 23 in the inner holes of one engaging hole 13 respectively, the three sides of the upper support frame 11 and the lower support frame 21 are fixed, which can increase the pair of filter elements of the upper bracket 1 and the lower bracket 2 The supporting force of the system improves the supporting effect.

Further, perforations 14 may be provided on the two sides of the upper support frame 11 respectively. The user may pass the strap through the two perforations 14 and then pass the strap around the head and fix both ends of the strap, thereby Fix the upper bracket 1 and the lower bracket 2 on the human face.

On the basis of the above embodiment, a ring seal is provided on the side of the lower support frame 21 away from the upper support frame 11.

In this embodiment, an annular seal is provided on the lower support frame 21. When the user covers the lower support frame 21 on the human face, there is an annular seal between the lower support frame 21 and the human face. The annular seal can The gap between the support frame 21 and the human face is filled, so as to play a sealing role, to prevent outside air from entering the human nasal cavity from the gap between the lower support frame 21 and the human face, and improve the filtering effect.

15 is a schematic structural view of a filter element in a mask provided by an embodiment of the present invention; FIG. 16 is another schematic structural view of the filter element shown in FIG. 15, as shown in FIGS. 15 and 6, on the basis of the above embodiment, further Ground, the filter element includes a filter element body 9; the filter element body 9 includes an outer filter layer 91 and an inner filter layer 92; the outer filter layer 91 and the inner filter layer 92 are sequentially stacked from outside to inside; the outer filter layer 91 and the inner filter layer 92 are both It is used to filter particulate dirt, and the particles filtered by the outer filter layer are larger than the particles filtered by the inner filter layer.

In the filter element provided by the embodiment of the present invention, the filter body 9 includes an outer filter layer 91 and an inner filter layer 92; the outer filter layer 91 and the inner filter layer 92 are sequentially stacked from outside to inside; the user covers the filter body 9 on the human body Face, and the inner filter layer 92 is located on the side close to the face of the human body. The outside air is filtered through the outer filter layer 91 and the inner filter layer 92 in sequence and enters the human nasal cavity. The outer filter layer 91 can filter larger respirable particles while protecting the inner filter layer 92.

Compared with the prior art mask, the filter element provided by the embodiment of the present invention has no melt-blown layer, and the breathing resistance is small, so that the user can breathe smoothly without configuring the air outlet valve, and at the same time, the filtering efficiency is high, thereby improving the user The comfort level of the user reduces the probability of the user suffering from cardiovascular and cerebrovascular diseases due to breathing difficulties. At the same time, it can filter PM2.5 and smaller respirable particles, the filtering effect is as high as 95%.

The material of the outer filter layer 91 and the material of the inner filter layer 92 can be various, for example, gauze, cotton cloth, or activated carbon.

Preferably, the outer filter layer 91 is made of PP spunbond cloth, which has the advantages of aging resistance, ultraviolet resistance, good stability and breathability, and non-toxicity.

As shown in FIGS. 15 and 6, on the basis of the above embodiment, further, the filter element further includes a shaping layer 93; the shaping layer 93 is provided on the side of the inner filter layer 92 away from the outer filter layer 91, which is used 9 stereotypes.

Among them, there are various materials of the shaping layer 93, for example: cotton cloth, sanitary yarn or non-woven fabric. It is better to use knitted cotton. The knitted cotton layer has better elasticity, is hygroscopic and breathable, and can improve the comfort when people wear it.

In this embodiment, the outer filter layer 91, the inner filter layer 92, and the shaping layer 93 are sequentially arranged from outside to inside. The outer filter layer 91 can filter larger particles, the inner filter layer 92 can filter smaller inhalable particles, and the shaping layer 93 It can play the role of supporting the outer filter layer 91 and the inner filter layer 92, and at the same time can prevent the filter element from deforming due to the change of the air pressure of the breath, prevent the inner filter layer 92 from being wet by the water vapor exhaled by the human body, reduce the filtering efficiency, and prevent the human body from exhaling The larger particles affect the filtering effect of the entire filter element.

As shown in FIGS. 15 and 6, on the basis of the foregoing embodiment, further, the inner filter layer 92 includes at least one filter cotton layer.

Among them, the material of the filter cotton layer can be various, for example: synthetic fiber filter cotton, non-woven filter cotton, glass fiber filter cotton, activated carbon filter cotton, etc.

Preferably, the filter cotton layer adopts high-efficiency electrostatic filter core cotton, the outermost filter cotton layer 121 can filter PM2.5 grade particles, the filter cotton layer located in the shaping layer can filter finer respirable particles, and the air resistance of the high-efficiency electrostatic filter core cotton is small , Can filter 0.3 micron particles, with ultra-high efficiency and ultra-high dust suction capacity.

In this embodiment, a plurality of filter cotton layers are arranged in parallel in order from outer to inner, the outermost filter cotton layer is in close contact with the outer filter layer, and the innermost filter cotton layer is in close contact with the shaping layer. Multiple filter cotton layers can play the role of filtration at the same time, thereby further improving the filtration effect.

As shown in FIGS. 15 and 6, on the basis of the above embodiment, further, the edge of the filter body 9 is bent outward to form a fixed curling edge for fixing on the mask.

In this embodiment, the edge of the filter core body 9 is bent outward to form a curled edge, which is convenient for fixing the filter core on the mask and convenient for processing operations.

As shown in FIGS. 15 and 6, on the basis of the above embodiment, further, the cross section of the filter body 9 is curved.

In this embodiment, the cross-section of the filter body 9 is arc-shaped, that is, the filter body 9 is dome-shaped, and the filter body 9 is curved toward the direction in which the shaping layer 93 is provided, with one side concave and the other side convex, so that it will not A dead cavity is formed, which does not affect the user's breathing. The stable shape also makes the structure of the outer filter layer 91, the inner filter layer 92, and the shaping layer 93 more stable, and the sealing effect is more durable.

On the basis of the above-mentioned embodiment, further, the filter body 9 is shaped by ultrasonic waves.

In this embodiment, the filter body 9 is formed by ultrasonic waves, that is, the shape of the outer filter layer 91, the inner filter layer 92, and the shaping layer 93 is formed by ultrasonic waves, thereby further improving the structure of the filter body 9 The stability of the filter element improves the sealing effect of the filter element.

Based on the above embodiment, further, when there are two good filter cotton layers, one is the first filter layer 921 and the other is the second filter layer 922. The weight of the first filter layer 921 is 150 g.

Further, the weight of the second filter layer 922 is 150 g.

In this embodiment, both the first filter layer 921 and the second filter layer 922 use 150 g of filter cotton. Preferably, both the first filter layer 921 and the second filter layer 922 use 150 g of high-efficiency electrostatic filter core cotton, and the first filter The layer 921 can filter PM2.5 grade particles, and the second filter layer 922 can filter finer respirable particles from PM2.5 to PM0.3, thereby improving the filtering effect.

Based on the above embodiment, further, the filter body 9 is triangular.

In this embodiment, the filter body 9 is set as a triangle, so that when the user covers the filter body 9 on the human face and wraps the nose and lips in the filter body 9, the filter body 9 will not be wrapped too much The human face reduces the coverage of the filter body 9 on the human face, which further improves comfort.

9 is a schematic structural view of a protective plate in a mask provided by an embodiment of the present invention; FIG. 10 is another structural schematic view of the protective plate shown in FIG. 9; FIG. 11 is another structural schematic view of the protective plate shown in FIG. 9; As shown in FIGS. 9-11, on the basis of the above embodiment, further, the protective device includes a protective plate 3; one side of the protective plate 3 is fixedly connected to the side of the upper bracket 1 away from the filter core, and the other side of the protective plate 3 is fixed The device is fixedly connected.

The protective plate 3 can protect the filter element and prevent external dust and other contaminants from adhering to the filter element, thereby ensuring the filtration efficiency of the filter element. For example, when the filter element is used in rain or snow, the protective plate 3 can reduce the rain and snow falling on the filter element and avoid reducing its filtering efficiency; in addition, the protective plate 3 can also reduce part of the air flow rate and extend the filter time of the filter element to increase filtration Effect; again, in winter, the protective plate 3 can also play a role in keeping warm.

Further, the protective plate 3 is triangular. In this embodiment, the protective plate 3 is set to be triangular, so that the shape of the protective plate 3 is consistent with the shape of the filter element, so that the protective plate 3 can completely cover the filter element, so that the filter element can be fully protected. In this embodiment, the protection plate 3 is set as a triangle, and the triangle of the triangle can be set as a transitional arc shape, which can reduce the protection angle and prevent the protection plate 3 from scratching the user's skin.

Further, the cross-sectional shape of the protective plate 3 is an arc shape. In this embodiment, the cross-sectional shape of the shield plate 3 is an arc shape, that is, the edge of the shield plate 3 is curved toward the same surface of the shield plate 3, so that the middle of the shield plate 3 protrudes toward the other surface. The concave side of the protective plate 3 is fixedly connected to the upper bracket 1, so that a gap can be left between the protective plate 3 and the upper bracket 1, and the outside air can enter the filter element and filter from the gap between the protective plate 3 and the upper bracket 1, thereby avoiding The protective plate 3 impedes human breathing and causes difficulty in human breathing.

As shown in FIG. 1, on the basis of the foregoing embodiment, further, a fixing device is further included; the fixing device is used to fix the support device to the human face.

In this embodiment, the support device is fixed to the face of the human body by the fixing device, which can improve the firmness of the mask, make the mask fit the face more closely, and make the wearing effect better.

12 is a schematic structural view of a fixed cloth in a mask provided by an embodiment of the present invention; FIG. 13 is another structural schematic view of the fixed cloth shown in FIG. 12; FIG. 14 is another structural schematic view of the fixed cloth shown in FIG. 12; As shown in FIGS. 12-14, on the basis of the above embodiment, further, the fixing device includes a fixing cloth 5; the fixing cloth 5 is in the form of a band; one side of the fixing cloth 5 is fixedly connected to the protective plate 3; One end and the other end are detachably fixedly connected to fix the lower support frame 21 on the human face.

The user covers the lower bracket 2 on the face of the human body, the filter element wraps the nose and lips of the human body, and then wraps the two ends of the fixing cloth 5 around the back of the head to fix the two ends together to fix the mask on Human face. Since the fixing cloth 5 is in the shape of a belt, the area of the bearing device acting on the face of the person is increased, the pressure acting on the face of the person is reduced, and the user's comfort is improved.

On the basis of the above-mentioned embodiment, further, the fixing cloth 5 is provided with an installation cavity 6 in which the protective plate 3 is installed; and the installation gap 7 is provided at a position of the fixing cloth 5 corresponding to the installation cavity 6.

In this embodiment, an installation cavity 6 is provided in the fixed cloth 5, and an installation gap 7 is provided at a position corresponding to the installation cavity 6. The user installs the protective plate 3 in the installation cavity 6 through the installation notch 7, and then fixes the fixing cloth 51 on the human face. It is convenient for users to install, at the same time, the protective plate 3 can also be spread out in the installation cavity 6, at this time, the fixed cloth 5 also plays the role of filtering the dust in the air, and the air filtered by the fixed cloth 5 is filtered and entered by the filter core The nasal cavity of the human body improves the filtering effect of the mask.

Further, along the length direction of the fixed cloth 5, the installation cavity 6 is provided in the middle of the fixed cloth 5. In this embodiment, the installation cavity 6 is provided in the middle of the fixed cloth 5, so that the protective plate 3 can be fixed in the middle of the fixed cloth 5, after the fixed cloth 5 is connected to the protective plate 3, the two ends of the fixed cloth 5 are symmetrical, which is convenient The user fixes both ends of the fixing cloth 5.

The shapes of the protective plate 3, the installation cavity 6 and the installation gap 7 are all triangular. In this embodiment, the shapes of the installation cavity 6 and the installation gap 7 are consistent with the protective plate 3, and after the user places the protective plate 3 in the installation cavity 6, the protective plate 3 can be fully expanded in the installation cavity 6, ensuring that The filtering effect of the mask is also convenient for the user to place the protective plate 3 in the installation cavity 6.

Wherein, the triangle formed by the installation cavity 6 and the installation gap 7 is a triangle with a curved arc at the bend, that is, the triangle is overall, but the bend at the triangle has an arc shape.

The fixing cloth 5 is provided with a connection structure 8; the connection structure 8 is used to detachably fix one end of the fixing cloth 5 and the other end. The connection structure 8 includes a first connection portion 81 and a second connection portion 82 that cooperates with the first connection portion 81; the first connection portion 81 is provided at one end of the fixed cloth 5; the second connection portion 82 is provided at the other end of the fixed cloth 5 . In this embodiment, the user wraps both ends of the fixing cloth 5 around the back of the human head, and fits the first connecting portion 81 and the second connecting portion 82 to fix one end of the fixing cloth 5 to the other end. The first connection portion 81 and the second connection portion 82 are separated so that one end of the fixing cloth 5 is detached from the other end, thereby removing the fixing cloth 5 from the human face.

The first connection portion 81 and the second connection portion 82 may have various structural forms. For example, the first connection portion 81 may be a buckle, and the second connection portion 82 may be a buckle 41 that cooperates with the buckle. The user snaps the buckle in the slot 41 to fix one end of the fixing cloth 51 to the other end, and removes the buckle from the slot 41 to separate one end of the fixing cloth 51 from the other end.

Preferably, the first connecting portion 81 is a rough surface; the second connecting portion 82 is a hook surface. In this embodiment, the user's wool surface sticks to the hook surface to fix one end of the fixing cloth 5 to the other end, and separates the wool surface from the hook surface, thereby separating one end of the fixing cloth 5 from the other end. The structure of the rough surface and the hook surface is simple and the operation is convenient.

Further, in the longitudinal direction of the fixing cloth 5, the width of the middle part to the width of the end part of the fixing cloth 5 gradually decreases. In this embodiment, the width of the middle to the end of the fixing cloth 5 is gradually smaller, and the middle part has a larger width, so that the middle of the fixing cloth 5 can completely cover the filter element, and the smaller of the two ends can reduce the fixing cloth 5 in The coverage area on the face avoids causing the user's face to be tight and improves the user's comfort.

Further, the protective plate 3 is fixedly connected to the upper bracket 1 through a fixing member 4; the fixing member 4 includes three fixing rods 42; one end of two fixing rods 42 is fixedly connected to one end of the other fixing rod 42 and three fixing The rods 42 are all fixedly connected to one side of the protective plate 3; the three fixing rods 42 are respectively provided with clamping slots 41 for clamping the first upper support rod 121, the second upper support rod 122, and the third upper support rod 123, and the structure is simple. , Securely fixed, easy to install and remove.

Further, a lock structure is provided on the protective plate 3 and the upper bracket 1. The lock structure includes protrusions and notches. The side wall of the clamping groove 41 on the fixing rod 42 is provided with a notch, and the upper bracket 1 is provided with a protrusion. The user clips the protrusion to the notch, thereby further firmly connecting the upper bracket 1 and the protective plate 3 to improve the fixing Reliability.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features can be equivalently replaced; and these modifications or replacements do not deviate from the essence of the corresponding technical solutions of the technical solutions of the embodiments of the present invention. range.

1‧‧‧Upper bracket

2‧‧‧Lower bracket

3‧‧‧Protection board

9‧‧‧Filter body

10‧‧‧Seal

Claims (8)

A mask includes a support device, a filter element, a protection device and a sealing ring, wherein: the support device fixedly supports the filter element, and the protection device is provided on one side of the support device for protecting the filter element , The other side of the supporting device is provided with a sealing ring for fitting with the human face; wherein, the supporting device includes an upper bracket and a lower bracket, the upper bracket and the lower bracket are detachably fixedly connected; The filter element is detachably fixed between the upper bracket and the lower bracket; the protective device is fixedly connected to the side of the upper bracket away from the filter core; the side of the lower bracket away from the filter core is provided with a seal Circle; the lower support frame is provided with a lower support, the lower support includes a first lower support bar, a second lower support bar and a third lower support bar; one end of the first lower support bar, the first One end of the second lower support bar is connected to one end of the third lower support bar; the other end of the first lower support bar, the other end of the second lower support bar and the other end of the third lower support bar One end is respectively connected to a bend of the lower support frame; the connection of the first lower support bar, the second lower support bar, and the third lower support bar is closer to the upper support frame Protruding from the lower support frame; and/or the upper support frame is provided with an upper support member, the upper support member includes a first upper support bar, a second upper support bar, and a third upper support bar; the first One end of an upper support rod and one end of the second upper support rod are connected to one end of the third upper support rod; the other end of the first upper support rod and the other end of the second upper support rod The other end of the third upper support bar is connected to a bend of the upper support frame; the connection of the first upper support bar, the second upper support bar, and the third upper support bar The direction away from the lower support frame protrudes from the upper support frame. The mask as described in item 1 of the patent application scope, wherein the upper bracket includes a triangular For the upper support frame, the lower bracket includes a triangular lower support frame; the upper support frame and the lower support frame are fixedly connected, and the upper support frame and the lower support frame are used to fix the edge of the filter element. The mask as described in item 1 of the patent application scope, wherein the filter element includes a filter element body; the filter element body includes an outer filter layer and an inner filter layer; the outer filter layer and the inner filter layer are in turn from outer to inner Stacked; the outer filter layer and the inner filter layer are used to filter particulate dirt, and the particles filtered by the outer filter layer are larger than the particles filtered by the inner filter layer. The mask as described in item 1 of the patent application scope, wherein the protective device includes a protective plate; one side of the protective plate is fixedly connected to the side of the upper bracket away from the filter core, and the other side of the protective plate is The fixing device is fixedly connected. The mask as described in item 4 of the patent application scope, which further includes a fixing device; the fixing device is used to fix the support device on the human face. The mask as described in item 5 of the patent application scope, wherein the fixing device includes a fixing cloth; the fixing cloth is in a band shape; one side of the fixing cloth is fixedly connected to the protective plate; one end of the fixing cloth The other end is detachably fixedly connected to fix the lower support frame on the human face. The mask as described in item 6 of the patent application range, wherein the fixing cloth is provided with an installation cavity for installing the protective plate; and the fixing cloth is provided with an installation gap at a position corresponding to the installation cavity. The support device for a mask as described in item 1 of the scope of the patent application, wherein the lower support member further includes two fourth lower support rods arranged at an acute angle; both ends of the two fourth lower support rods are It is connected to one end of the third lower support rod, and the other ends of the two fourth lower support rods are connected to the lower support frame.

Images