Mask supporting frame and mask

Abstract

The utility model discloses a mask supporting frame and a mask. The mask supporting frame comprises a face fitting ring, an assembling ring and a supporting framework, the supporting framework is fixedly arranged between the face fitting ring and the assembling ring, the assembling ring is used for installing a breather valve, the face fitting ring is provided with a fitting face matched with the face contour of the human body, and the supporting framework is further provided with a buffering structure. The buffer structure is arranged between the face fitting ring and the assembly ring, and the buffer structure can generate recoverable deformation under the action of external force. When the face fitting ring is subjected to tension applied from inside to outside, the buffer structure can be compressed in the direction from the face fitting ring to the assembling ring, so that the overall shape of the face fitting ring is kept basically constant, and the fitting face of the face fitting ring is always fitted with the face of the human body.

Description

Technical Field

[0001] The utility model particularly relates to a mask support frame and a mask, belonging to the technical field of protective equipment. Background Art

[0002] Smog is a mixture of fog and haze. Since the core substances of haze are smoke, dust and other substances suspended in the air, it reduces visibility. Moreover, haze can directly enter the nostrils with the gas and adhere to the lower respiratory tract and lung lobes of the human body, thus causing harm to human health.

[0003] Haze weather is primarily caused by human-induced environmental pollution. It typically occurs under natural conditions such as low temperatures and low winds, making it difficult for air pollutants to disperse and linger in a specific area for extended periods. To mitigate the effects of haze on the respiratory system, people wear masks when exercising outdoors or traveling to reduce the inhalation of dust particles. However, ordinary masks do not provide a good seal, allowing tiny pollutant particles to enter the respiratory system through the gap between the mask and the face. Consequently, many masks with high sealing properties have emerged on the market. Patent application number CN03142937.8 discloses a mask with excellent airtightness, comprising a mask body, a face seal, and a frame. The outer edges of the mask body and the face seal are joined together. The face seal is formed by laminating an airtight soft resin onto an elastic fabric made of nylon or polyester fibers. The frame is inserted along the connecting portion between the outer edges of the mask body and the face seal. However, existing mask frames require a certain degree of structural strength to support the mask body and maintain its three-dimensional shape. However, these overly stable frames only maintain a seal with the human face in a specific posture and cannot adapt to facial movements. Summary of the Invention

[0004] The main purpose of the utility model is to provide a mask support frame and a mask, thereby overcoming the deficiencies in the prior art.

[0005] In order to achieve the above-mentioned purpose of the utility model, the technical solution adopted by the utility model includes:

[0006] The first aspect of an embodiment of the present invention provides a mask support frame, which includes: a facial fitting ring, an assembly ring and a support frame, wherein the support frame is fixedly arranged between the facial fitting ring and the assembly ring, the assembly ring is used to install a breathing valve, and the facial fitting ring has a fitting surface adapted to the human facial contour, wherein the support frame also has a buffer structure, wherein the buffer structure is arranged between the facial fitting ring and the assembly ring, and the buffer structure can undergo recoverable deformation under the action of external force, and when the facial fitting ring is subjected to tension applied from the inside to the outside, the buffer structure can be compressed in a direction from the facial fitting ring to the assembly ring, so that the overall shape of the facial fitting ring remains basically constant, and the fitting surface of the facial fitting ring always fits with the human face.

[0007] The second aspect of the embodiment of the present utility model provides a mask, which includes: a mask body, a breathing valve and the mask support frame, the mask body is covered on the mask support frame, the breathing valve is arranged on the outside of the mask body facing away from the mask support frame, and the breathing valve is fixedly matched with the assembly ring of the mask support frame.

[0008] Compared with the prior art, the advantages of the present invention include: a mask support frame provided in an embodiment of the present invention can adapt to the muscle movements of the human face and produce a certain degree of adaptive deformation. When the wearer wears a mask using the mask support frame, the mask can maintain dynamic fit with the wearer's face to the greatest extent. Moreover, through the adaptive deformation of the mask support frame, the pressure on the wearer's face can also be reduced, avoiding leaving obvious marks, thereby greatly improving the wearing comfort and airtightness. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0010] Figure 1 This is a schematic diagram of the overall structure of a mask support frame provided in a typical implementation case of the present utility model;

[0011] Figure 2 This is a front structural diagram of a mask support frame provided in a typical implementation case of the utility model;

[0012] Figure 3 This is a side structural diagram of a mask support frame provided in a typical implementation case of the utility model;

[0013] Figure 4 This is a structural diagram of a mask support frame provided in a typical implementation case of the utility model;

[0014] Figure 5 This is a structural diagram of a mask support frame provided in a typical implementation case of the utility model. DETAILED DESCRIPTION

[0015] In view of the shortcomings of the existing technology, the inventors of this case, after long-term research and extensive practice, have proposed the technical solution of this utility model. The following will further explain this technical solution, its implementation process and principles.

[0016] The first aspect of an embodiment of the present invention provides a mask support frame, which includes: a facial fitting ring, an assembly ring and a support frame, wherein the support frame is fixedly arranged between the facial fitting ring and the assembly ring, the assembly ring is used to install a breathing valve, and the facial fitting ring has a fitting surface adapted to the human facial contour, wherein the support frame also has a buffer structure, wherein the buffer structure is arranged between the facial fitting ring and the assembly ring, and the buffer structure can undergo recoverable deformation under the action of external force, and when the facial fitting ring is subjected to tension applied from the inside to the outside, the buffer structure can be compressed in a direction from the facial fitting ring to the assembly ring, so that the overall shape of the facial fitting ring remains basically constant, and the fitting surface of the facial fitting ring always fits with the human face.

[0017] Furthermore, the facial fitting ring includes a first fitting segment, a second fitting segment, a third fitting segment and a fourth fitting segment, the first fitting segment is adapted to the nose area of ​​the human body, the second fitting segment and the fourth fitting segment are adapted to the cheek area of ​​the human body, and the third fitting segment is adapted to the chin area of ​​the human body, wherein the buffer structure is located between the first fitting segment and / or the third fitting segment and the assembly ring.

[0018] Furthermore, the buffer structure is a circuitous bending structure that extends as a whole in a direction from the face fitting ring to the assembly ring, or the buffer structure is a flexible body as a whole, or the buffer structure is an elastic body as a whole.

[0019] Furthermore, the buffer structure includes a plurality of buffer strips connected end to end in sequence, two adjacent buffer strips are set at an angle, and the plurality of buffer strips are connected to form the circuitous bending structure, wherein the two buffer strips located at both ends are fixedly connected to the facial fitting ring and the assembly ring respectively.

[0020] Furthermore, the buffer strip is a linear structure or an arc-shaped structure.

[0021] Furthermore, the mask support frame as a whole is an axisymmetric structure, and the buffer structure is located in the middle area where the central axis of the mask support frame is located.

[0022] Furthermore, the support frame includes a support main beam and a plurality of support bars, the support main beam as a whole extends along the central axis of the mask support frame, the support main beam is arranged between the first fitting section, the third fitting section and the assembly ring of the face fitting ring, and the two ends of the buffer structure are respectively fixedly connected to the support main beam, the face fitting ring or the assembly ring, or the buffer structure is part of the support main beam;

[0023] The plurality of support bars are respectively arranged between the assembly ring and the second fitting section and the fourth fitting section of the face fitting ring.

[0024] Furthermore, the supporting main beam includes a first supporting main beam section and a second supporting main beam section, one end of the first supporting main beam section is fixedly connected to the facial fitting ring, and the other end is fixedly connected to the assembly ring via a buffer structure, and one end of the first supporting main beam section is fixedly connected to the assembly ring, and the other end is fixedly connected to the facial fitting ring via another buffer structure.

[0025] Furthermore, the support strip and the facial fitting ring have four connection points, and the four connection points are symmetrically distributed on both sides of the central axis of the mask support frame. The central angle of the arc segment between two connection points on the same side of the central axis of the mask support frame is 60°.

[0026] The second aspect of the embodiment of the present utility model provides a mask, which includes: a mask body, a breathing valve and the mask support frame, the mask body is covered on the mask support frame, the breathing valve is arranged on the outside of the mask body facing away from the mask support frame, and the breathing valve is fixedly matched with the assembly ring of the mask support frame.

[0027] Furthermore, the mask also includes: a facial seal, the outer edge portion of the facial seal is joined to the outer edge portion of the mask body and wraps the outer edge of the mask support frame, wherein the facial seal is provided with openings corresponding to the mouth and nose of the human body.

[0028] The following will further explain the technical solution, its implementation process and principles in conjunction with the accompanying drawings and specific implementation cases. Unless otherwise specified, the mask support frame, mask body, facial seal and ear straps mentioned in the embodiments of the present invention can be obtained by processing means known in the art, and their specific structures, sizes, etc. are not limited here.

[0029] In a more specific implementation case, please refer to Figure 1 and Figure 5 A mask support frame is used to support the mask body and make the mask body present the desired three-dimensional shape. The mask support frame includes: a facial fitting ring 100, an assembly ring 200 and a support frame 300. The support frame 300 is fixedly arranged between the facial fitting ring 100 and the assembly ring 200. The assembly ring 200 is used to install a breathing valve. The facial fitting ring 100 has a fitting surface that adapts to the facial contour of the human body. The central axis AA of the mask support frame corresponds to the central axis of the human face.

[0030] It should be noted that the structure of the fitting surface of the facial fitting ring 100 adapted to the human facial contour is well known in the art, and its specific contour structure and shape are not limited here.

[0031] For details, please refer to Figure 2-Figure 4 The facial fitting ring 100 as a whole includes a first fitting section 110, a second fitting section 120, a third fitting section 130 and a fourth fitting section 140. The first fitting section 110 is adapted to the nose area of ​​the human body, the second fitting section 120 and the fourth fitting section 140 are adapted to the cheek area of ​​the human body, and the third fitting section 130 is adapted to the chin area of ​​the human body. The first fitting section 110 and the second fitting section 120 intersect with the central axis AA of the mask support frame, and the second fitting section 120 and the fourth fitting section 140 are relatively arranged on both sides of the central axis AA of the mask support frame. As a preferred embodiment, the facial fitting ring 100 is a mirror-symmetrical structure, and the axis of symmetry of the facial fitting ring 100 is the central axis AA of the mask support frame, that is, the central axis AA of the mask support frame passes through the midpoint of the first fitting section and the third fitting section 130. The first fitting section and the third fitting section 130 are also mirror-symmetrical structures with the central axis AA of the mask support frame as the axis of symmetry. The second fitting section 120 and the fourth fitting section 140 are mirror-symmetrically arranged with the central axis AA of the mask support frame as the axis of symmetry.

[0032] It should be noted that the present invention divides the facial fitting ring 100 as a whole into a first fitting segment 110, a second fitting segment 120, a third fitting segment 130 and a fourth fitting segment 140 arranged along its own circumference. The first fitting segment 110, the second fitting segment 120, the third fitting segment 130 and the fourth fitting segment 140 can be connected end to end in sequence. Of course, the facial fitting ring 100 can also include other functional segments, and the first fitting segment 110, the second fitting segment 120, the third fitting segment 130 and the fourth fitting segment 140 and the other functional segments are fixedly connected.

[0033] Specifically, the support frame 300 includes two sections of support main beams 310, multiple support bars 320 and two sections of buffer structures 330. The support main beam 310 extends along the central axis of the mask support frame as a whole. The multiple support bars 320 are respectively arranged between the assembly ring 200 and the second fitting section 120 and the fourth fitting section 140 of the facial fitting ring 100. The two sections of support main beams 310 and the two sections of buffer structures 330 are respectively arranged between the assembly ring 200 and the first fitting section 110 and the third fitting section 130 of the facial fitting ring 100. Specifically, a section of support is respectively arranged between the assembly ring 200 and the first fitting section 110 and the third fitting section 130 of the facial fitting ring 100. The main beam 310 and a buffer structure 330 are supported, and the main beam 310 and the buffer structure 330 are fixedly connected. One of the main beam 310 and the buffer structure 330 is fixedly connected to the assembly ring 200, and the other is fixedly connected to the facial fitting ring 100. The buffer structure 330 can undergo recoverable deformation under the action of external force. When the facial fitting ring 100 is subjected to tension applied from the inside to the outside, the buffer structure 330 can be compressed in the direction from the facial fitting ring 100 to the assembly ring 200, so that the overall shape of the facial fitting ring 100 remains basically constant, and the fitting surface of the facial fitting ring 100 always fits with the human face. It should be noted that this tension is generally caused when the wearer of the mask including the mask support frame moves his mouth. For example, when the wearer is speaking, the mask support frame will be affected by this tension. At this time, the buffer structure 330 will expand and contract along the extension direction of the support main beam 310, thereby ensuring that the posture of the face fitting ring 100 of the mask support frame remains stable, and thus always maintains a good fit with the human face and maintains a good sealing effect.

[0034] As a typical embodiment, between the assembly ring 200 and the first fitting section 110 of the facial fitting ring 100, the support main beam 310 is directly fixedly connected to the first fitting section 110 of the facial fitting ring 100, and the buffer structure 330 is directly fixedly connected to the assembly ring 200. Between the assembly ring 200 and the third fitting section 130 of the facial fitting ring 100, the support main beam 310 is directly fixedly connected to the assembly ring 200, and the buffer structure 330 is directly fixedly connected to the first fitting section 110 of the facial fitting ring 100. It should be noted that in other specific embodiments, multiple sections of support main beams 310 may be provided between the assembly ring 200 and the first fitting section 110 and the third fitting section 130 of the facial fitting ring 100, and accordingly, the buffer structure 330 may be provided between two sections of support main beams 310.

[0035] Specifically, the buffer structure 330 is a winding structure that extends as a whole in the direction from the facial fitting ring 100 to the assembly ring 200, or the buffer structure 330 is a flexible body as a whole, or the buffer structure 330 is an elastomer as a whole. For example, the flexible body can be a silicone component, etc., and the elastomer can be a spring, etc.

[0036] More specifically, the buffer structure 330 includes a plurality of buffer bars connected end to end, with two adjacent buffer bars arranged at an angle. The plurality of buffer bars are connected in sequence to form the zigzag structure. More specifically, the buffer bars are linear or arcuate. As a preferred embodiment, the zigzag buffer structure 330 can be integrated with the support beam 310, that is, the buffer structure 330 can be formed by zigzagging a portion of the support beam 310. It should be noted that the buffer structure 330 shown in the figure is generally S-shaped, but it can also have other structures, such as wavy or broken line shapes, which will not be described in detail here.

[0037] Specifically, multiple support bars 320 are fixedly connected to the assembly ring 200 and the facial fitting ring 100, respectively. Some support bars 320 can also be fixedly connected to each other. The multiple support bars 320 between the assembly ring 200 and the second fitting section 120 or the fourth fitting section 140 of the facial fitting ring 100 form a support network structure. The multiple support bars 320 can ensure the structural stability of the assembly ring 200 and the facial fitting ring 100 in the axial direction perpendicular to the central axis of the mask support frame. As a preferred embodiment, the structure of the multiple support bars 320 between the assembly ring 200 and the second fitting section 120 and the fourth fitting section 140 of the facial fitting ring 100 is arranged in mirror symmetry with respect to the central axis of the mask support frame.

[0038] For more details, please refer to Figure 4 The assembly ring 200 is a circular ring structure, and the assembly ring 200 has a first connection point (part) 201, a second connection point (part) 202, a third connection point (part) 203, a fourth connection point (part) 204, a fifth connection point (part) 205, and a sixth connection point (part) 206. The first connection point 201, the second connection point 202, the third connection point 203, the fourth connection point 204, the fifth connection point 205, and the sixth connection point 206 are arranged at equal intervals along the circumference of the assembly ring 200, wherein the first connection point 201 and the fourth connection point 204 are located on the central axis of the mask support frame, and the assembly ring 200 is only connected to the multiple support bars 320 between the second fitting section 120 and the fourth fitting section 140 of the facial fitting ring 100 and the second connection point 202, the third connection point 203, the fifth connection point 205, and the sixth connection point 206 of the assembly ring 200.

[0039] As a preferred embodiment, the assembly ring 200 is located in the central area of ​​the mask support frame, and the mask support frame as a whole is a mirror-symmetrical structure (which can also be understood as an axisymmetric structure).

[0040] Specifically, the facial fitting ring 100, the assembly ring 200 and the support frame 300 included in the mask support frame can be fixedly connected by a method known in the art, or they can be integrally arranged. For example, the facial fitting ring 100, the assembly ring 200 and the support frame 300 can be integrally formed by 3D printing. Exemplarily, the material of the mask support frame can also be polyolefins such as polyethylene (PE) and its copolymers, including high-density polyethylene (HDPE), medium-density polyethylene (MDPE), low-density polyethylene (LDPE), ultra-low-density polyethylene (ULDPE), polyethylene-α-olefin copolymers, etc., polypropylene (PP) such as polypropylene homopolymer and its copolymers, polycarbonate (PC).

[0041] In a more specific implementation case, a mask includes a mask body, a breathing valve, a facial seal, and a mask support frame. The mask body is covered on the mask support frame, and the breathing valve is arranged on the outside of the mask body facing away from the mask support frame. The breathing valve is fixedly matched with the assembly ring 200 of the mask support frame, and the outer edge portion of the facial seal is joined together with the outer edge portion of the mask body and wraps the outer edge of the mask support frame, wherein the facial seal is provided with openings corresponding to the human mouth and nose, and ear straps, etc. can be fixed on the mask body.

[0042] Specifically, the face seal is fixed to one side of the mask body by ultrasonic welding (for example, the face seal is fixedly coupled to the inner layer of the mask body). Specifically, the structure of the mask body is a conventional structure known to those skilled in the art, which is known to those skilled in the art and can be produced using existing mask production equipment. It can be a disposable medical surgical mask that complies with the YY0469-2011 standard or a disposable medical mask that complies with the YY / T0969-2013 or GB 15979-2002 standard. For example, the mask body includes an inner layer, a middle layer, and an outer layer arranged in sequence, wherein the middle layer includes at least one layer of meltblown cloth, and the face seal is fixed to a side of the inner layer away from the middle layer by ultrasonic welding. The inner layer and the outer layer can be non-woven fabrics, and their thickness and other aspects are all in accordance with standard settings. In addition, the mask body further has a folding structure formed by folding at least a portion of the mask body along its width direction to facilitate the user to pull the mask along the width direction when in use. Specifically, the facial seal includes a veneer layer, a filter layer and a surface layer stacked in sequence. The surface layer is located on the side of the filter layer close to the mask body. The veneer layer can directly fit the human face. The veneer layer and the surface layer are both non-woven fabrics. The filter layer includes a polytetrafluoroethylene filter membrane. The veneer layer, the filter layer and the surface layer are combined into one by bonding or ultrasonic welding; wherein the thickness of the veneer layer is 0.1-2mm, the thickness of the filter layer is 1-500μm, and the thickness of the surface layer is 0.1-2.5mm.

[0043] It should be understood that the above embodiments are merely illustrative of the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to fall within the scope of protection of the present invention.

Claims

1. A mask support frame, characterized in that: include: A facial fitting ring, an assembly ring and a support frame, wherein the support frame is fixedly arranged between the facial fitting ring and the assembly ring, the assembly ring is used to install a breathing valve, and the facial fitting ring has a fitting surface adapted to the human facial contour, wherein the support frame also has a buffer structure, the buffer structure is arranged between the facial fitting ring and the assembly ring, the buffer structure can undergo recoverable deformation under the action of external force, when the facial fitting ring is subjected to tension applied from the inside to the outside, the buffer structure can be compressed in the direction from the facial fitting ring to the assembly ring, so that the overall shape of the facial fitting ring remains basically constant, and the fitting surface of the facial fitting ring always fits with the human face.

2. The mask support frame according to claim 1, characterized in that: The facial fitting ring includes a first fitting segment, a second fitting segment, a third fitting segment and a fourth fitting segment, the first fitting segment is adapted to the nose area of ​​the human body, the second fitting segment and the fourth fitting segment are adapted to the cheek area of ​​the human body, and the third fitting segment is adapted to the chin area of ​​the human body, wherein the buffer structure is located between the first fitting segment and / or the third fitting segment and the assembly ring.

3. The mask support frame according to claim 1 or 2, characterized in that: The buffer structure is a circuitous bending structure extending in a direction from the face fitting ring to the assembly ring as a whole, or the buffer structure is a flexible body as a whole, or the buffer structure is an elastic body as a whole.

4. The mask support frame according to claim 3, characterized in that: The buffer structure includes a plurality of buffer strips connected end to end in sequence, wherein two adjacent buffer strips are arranged at an angle, and the plurality of buffer strips are connected to form the circuitous bending structure, wherein the two buffer strips at the two ends are fixedly connected to the facial fitting ring and the assembly ring respectively; And / or, the buffer strip is a linear structure or an arc-shaped structure.

5. The mask support frame according to claim 2, characterized in that: The mask support frame as a whole is an axisymmetric structure, and the buffer structure is located in the middle area where the central axis of the mask support frame is located.

6. The mask support frame according to claim 5, characterized in that: The support frame includes a support main beam and a plurality of support bars. The support main beam extends as a whole along the central axis of the mask support frame. The support main beam is arranged between the first fitting section, the third fitting section and the assembly ring of the face fitting ring. The two ends of the buffer structure are respectively fixedly connected to the support main beam, the face fitting ring or the assembly ring, or the buffer structure is part of the support main beam; The plurality of support bars are respectively arranged between the assembly ring and the second fitting section and the fourth fitting section of the face fitting ring.

7. The mask support frame according to claim 6, characterized in that: The supporting main beam includes a first supporting main beam section and a second supporting main beam section. One end of the first supporting main beam section is fixedly connected to the facial fitting ring, and the other end is fixedly connected to the assembly ring via a buffer structure. One end of the first supporting main beam section is fixedly connected to the assembly ring, and the other end is fixedly connected to the facial fitting ring via another buffer structure.

8. The mask support frame according to claim 6, characterized in that: The support strip and the facial fitting ring have four connection points, which are symmetrically distributed in pairs on both sides of the central axis of the mask support frame. The central angle of the arc segment between two connection points on the same side of the central axis of the mask support frame is 60°.

9. A mask, characterized in that: include: A mask body, a breathing valve and the mask support frame according to any one of claims 1 to 8, wherein the mask body is covered on the mask support frame, the breathing valve is arranged on the outside of the mask body facing away from the mask support frame, and the breathing valve is fixedly matched with the assembly ring of the mask support frame.

10. The mask according to claim 9, characterized in that: Also includes: A face seal, the outer edge of which is joined to the outer edge of the mask body and wraps around the outer edge of the mask support frame, wherein the face seal is provided with openings corresponding to the mouth and nose of the human body.

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