A high-sealing breathing mask capable of being quickly put on and taken off

Abstract

The present invention relates to a high-sealing breathing mask that can be quickly put on and taken off, comprising: a mask body; a one-way valve sheet; a sealing elastic body; a protective shell, which is detachably fixedly mounted on the front side of the mask body, and a group of mutually symmetrical through holes are respectively arranged at the upper and lower ends; a swing limiter, which is rotatably mounted on the outer side of the protective shell; a first wearing rope, which can be movably inserted through the through hole on the left side, fixedly connected to the swing limiter, and can be movably inserted through the through hole on the right side in sequence; a limiting component, comprising two wedges respectively fixed to the swing limiter and the protective shell; when the swing limiter is rotated clockwise to the right, the first wearing rope between the swing limiter and the through hole is set in a tensioned state, and the two wedges overlap each other to limit and fix the swing limiter; after the swing limiter is rotated counterclockwise to the right, the first wearing rope between the swing limiter and the through hole is in a relaxed state. The present invention effectively improves the convenience of taking and putting on and the sealing performance of wearing.

Description

Technical Field

[0001] The present invention relates to the technical field of breathing masks, and particularly to a high-sealing breathing mask that can be quickly put on and taken off. Background Art

[0002] A breathing mask is a special breathing device that protects the human respiratory organs from being harmed by toxic gases in the outside world. It removes toxic and harmful gases and vapors, such as organic vapors, inorganic, acidic gases, ammonia, and smoke, through the adsorption, absorption, catalysis, and direct filtration of a filtering device, and is used by personnel in industrial and mining enterprises in an environment without oxygen deficiency.

[0003] The breathing mask is mainly composed of a mask body and a sealing elastomer. The mask body is provided with corresponding air inlet and air outlet, and corresponding wearing ropes are connected to the upper and lower sides of the mask body for wearing. Since the sealing elastomer that fits the face is made of a flexible material, under the action of the pulling forces of the two pulling points of the wearing ropes arranged at intervals up and down on the mask body, the elastomer between the pulling points is likely to bulge outwards due to the force, which affects the sealing performance of the breathing mask during wearing. If the two pulling points are close to each other, it will affect the overall force balance of the breathing mask, as well as the wearing stability and overall tightness.

[0004] Furthermore, the breathing mask mainly uses an adjustment buckle arranged on the wearing rope for the connection and length adjustment of the end of the wearing rope, so as to adjust the tightness to fix and disassemble the breathing mask. Each time the mask is disassembled, it is necessary to stretch and loosen the wearing rope, or it is necessary to disassemble the buckle and regulator of the adjustment buckle. However, the adjustment buckle is mainly installed at the position of the back of the head, and it is inconvenient for personnel to wear it backwards; and when wearing the mask again, it is necessary to re-adjust the tightness of the wearing rope according to the different positions of the wearing rope on the human head. For those who need to temporarily disassemble the breathing mask for a short rest, or those who need to frequently put on and take off the breathing mask during wearing, the convenience of such a wearing method is still insufficient.

[0005] Therefore, the research purpose of the present invention is to design a breathing mask that can quickly realize the temporary detachment of the mask body and quickly and easily reset without disassembling the adjustment buckle or adjusting the tightness of the wearing rope, and without changing the wearing position of the wearing rope on the head, effectively improving the convenience of putting on and taking off; and through the improvement of the structure to balance the force of the breathing mask during wearing, thereby ensuring a high-sealing performance during wearing. Summary of the Invention

[0006] Aiming at the technical problems existing in the above-mentioned prior art, the present invention provides a high-sealing breathing mask that can be quickly put on and taken off, and this high-sealing breathing mask that can be quickly put on and taken off can effectively solve the technical problems existing in the above-mentioned prior art.

[0007] The technical solution of the present invention is as follows:

[0008] A highly sealed breathing mask capable of being quickly put on and taken off, comprising:

[0009] A mask body, with corresponding air inlets provided on both sides of the mask body, and a corresponding air outlet provided in the middle of its lower side;

[0010] A one-way valve piece, movably installed outside the mask body at the position of the air outlet. The one-way valve piece can be opened outward during exhalation and closed during inhalation;

[0011] A sealing elastomer, installed at the edge of the mask body close to the human face, and the edge of the sealing elastomer is folded inward;

[0012] A protective housing, detachably and fixedly installed on the front side of the mask body, used to cover and protect the air outlet and the one-way valve piece. The protective housing is provided with air-permeable holes communicating its inside and outside, and a set of symmetrically arranged through holes and a set of symmetrically arranged connection holes are respectively provided at the upper and lower ends of the protective housing;

[0013] A swing limiting member, rotatably installed outside the protective housing; used to cooperate with the installation of the first wearing rope and adjust the tightness of the first wearing rope;

[0014] A first wearing rope, which can be movably inserted through the left through hole in sequence, fixedly connected to the swing limiting member, and movably inserted through the right through hole, and its two ends are respectively connected to each other after winding around the head;

[0015] A second wearing rope, with corresponding second wearing ropes respectively connected at the connection holes, and the ends of the two second wearing ropes are connected;

[0016] A limiting and fixing assembly. At least one set of limiting and fixing assemblies for limiting and fixing the swing limiting member after it rotates clockwise to the in-place position is provided between the swing limiting member and the protective housing. The limiting and fixing assembly includes two wedge blocks respectively fixed on the swing limiting member and the protective housing; when the swing limiting member rotates clockwise to the in-place position, that is, when it rotates to the rear side of the vertical line, the first wearing rope between the swing limiting member and the through hole is in a tensioned state, and the two corresponding wedge blocks overlap each other to limit and fix the swing limiting member; after the swing limiting member rotates counterclockwise to the in-place position, the first wearing rope between the swing limiting member and the through hole is in a relaxed state, and the breathing mask can be stretched out of the human face along the first wearing rope through the cooperation of the through hole.

[0017] When the swing limiting member rotates clockwise to the in-place position, that is, when it rotates to the rear side of the vertical line, the angle between the swing limiting member and the perpendicular line where its hinge point is located is an acute angle not greater than 45°.

[0018] The protective housing includes a main body portion and an auxiliary body portion integrally formed and protruding from the front side of the main body portion. The ventilation holes are provided through the lower side or the front side of the auxiliary body portion. When the ventilation holes are provided on the front side of the auxiliary body portion, guide partition strips are integrally formed and fixedly connected to the outside of the ventilation holes at intervals from top to bottom, and the guide partition strips are gradually inclined downward from inside to outside.

[0019] The swing limiting member is arranged in a U-shaped or V-shaped structure, and corresponding connecting columns are integrally formed and fixedly connected to the relative inner sides of its two end portions. Corresponding embedding holes are recessed inwardly on both sides of the auxiliary body portion of the protective housing, and the swing limiting member is rotatably mounted on the protective housing by respectively installing the connecting columns into the embedding holes.

[0020] The swing limiting member includes a connecting body and convex edges integrally formed and protruding upward on both sides of the connecting body. The convex edges and the connecting body cooperate to form corresponding guide grooves for limiting and accommodating the first wearing rope.

[0021] At least one set of connecting components for connecting the first wearing rope is arranged in the middle of the lower end of the connecting body. The connecting components include two long holes penetrating through the upper and lower end faces of the connecting body, and the first wearing rope is fixedly arranged by alternately passing through the long holes up and down in sequence.

[0022] A first buckling component and a second buckling component for detachably installing the protective housing are arranged up and down between the protective housing and the mask body. The first buckling component includes a buckling base and a buckling member fixedly connected to the upper side of the mask body and the protective housing respectively. The second buckling component includes a buckling convex plate and a buckling V-shaped member fixedly connected to the lower side of the mask body and the protective housing respectively. The buckling base buckles the buckling member from top to bottom, and the buckling V-shaped member buckles the buckling convex plate from bottom to top.

[0023] A limiting plate for limiting and abutting the swing limiting member is arranged on the protective housing, and the limiting plate is integrally formed and extended downward from the end portion of the buckling V-shaped member.

[0024] A positioning block for positioning and installing the protective housing is arranged on the upper side of the mask body, and a positioning through hole adapted to the shape of the positioning block is arranged on the protective housing.

[0025] The end portion of the first wearing rope is connected through a corresponding adjusting buckle or is connected through an adjusting buckle and a headrest in cooperation. The headrest is connected to the end portion of the corresponding first wearing rope through a corresponding adjusting buckle, and the end portions of the two second wearing ropes are also connected through a corresponding adjusting buckle.

[0026] Advantages of the present invention:

[0027] 1) Through the optimization and improvement of the structure, a corresponding protective housing is detachably installed on the front side of the mask body. On the basis of ensuring the cover protection of the one-way valve piece for breathing, a corresponding swing limiting member is movably installed to adjust the tightness of the front end of the first wearing rope connected to the head. Thus, without disassembling the adjustment buckle or adjusting the tightness of the first wearing rope, and without changing the wearing position of the first wearing rope on the head, the tightness of the first wearing rope can be quickly and conveniently adjusted by rotating the swing limiting member clockwise or counterclockwise. Furthermore, the mask body can be quickly detached temporarily and reset, further effectively improving the convenience performance of wearing and removing the breathing mask.

[0028] Through the mutual cooperation of the structural improvement of the protective housing and the added swing limiting member, and the first wearing rope is installed by sequentially passing through the left through hole of the swing limiting member movably, fixedly connecting the swing limiting member, and passing through the right through hole movably. After the breathing mask is worn, only by adjusting the rotation angle of the swing limiting member to change the tightness of the first wearing rope, that is, when the swing limiting member rotates clockwise to the position behind the vertical line, the first wearing rope between the swing limiting member and the through hole is in a tensioned state; after the swing limiting member rotates counterclockwise to the in-place position, the first wearing rope between the swing limiting member and the through hole is in a relaxed state, and the breathing mask can be stretched out of the human face along the first wearing rope through the cooperation of the through hole. The adjustment method is simpler, and the swing limiting member is arranged on the front side, making the operation more convenient.

[0029] 2) On the basis of adding the above swing limiting member, the present invention further sets a corresponding limiting and fixing component between the swing limiting member and the protective housing. The limiting and fixing component can be wedge blocks respectively fixed on the swing limiting member and the protective housing. The swing limiting member is fixed by overlapping the two wedge blocks. This can not only ensure the firm fixation of the swing limiting member to prevent loosening and ensure the use effect, but also can apply an external force to detach the connection of the two wedge blocks lightly and quickly to make the swing limiting member rotate, further ensuring the practical effect of the present invention. And when the swing limiting member rotates clockwise to the in-place position, because the first wearing rope is in a tensioned state, and the included angle between the swing limiting member and the perpendicular line where its hinge point is located is an acute angle not greater than 45°, the swing limiting member has a tendency to swing backward clockwise. At this time, the limiting and fixing component can form an effective stroke limit for the swing limiting member to prevent it from swinging backward continuously. Under the interaction of forces, it can also fasten the two wedge blocks of the limiting and fixing component, so that the breathing mask has a corresponding acting force in the direction facing the human face at the position of the limiting and fixing component, and cooperates with the two pulling points above and below when the original first wearing rope is installed to bear the force evenly to avoid the middle bulge of the sealing elastomer and ensure the sealing performance of the breathing mask.

[0030] 3) A swing limiting member is rotatably installed on the outer side of the protective housing of the present invention. The first wearing rope passes through the through holes on the left side in sequence, is fixedly connected to the swing limiting member, passes through the through holes on the right side, and after winding around the head, its two end portions are connected to each other. After the swing limiting member rotates clockwise to the in-place position, the first wearing rope is arranged, stretched and tensioned along the guide groove on the swing limiting member. After the swing limiting member rotates counterclockwise to the in-place position, the first wearing rope is disengaged from the limit of the guide groove and is in a relaxed state. And the breathing mask is movably inserted and connected to the first wearing rope through the through holes. Therefore, the breathing mask can be pulled outwards along the relaxed first wearing rope through the cooperation of the through holes without affecting the connection of the first wearing rope at the rear side of the head. Therefore, when re-wearing the mask, directly place the breathing mask on the face and rotate the swing limiting member clockwise, then the first wearing rope can be in a tensioned state and the breathing mask is fixedly worn, without adjusting the length of the first wearing rope through an adjustment buckle, further ensuring and improving the practical effect of the present invention.

[0031] 4) The present invention is provided with at least one set of long strip holes in the middle of the lower end of the swing limiting member for connecting the first wearing rope and the swing limiting member. Preferably, there are three sets of symmetric long strip holes, and the first wearing rope is connected and fixed by the way of sequentially passing through up and down alternately. It is also possible to use existing fixing methods such as bonding and bolt locking to fix the middle part of the first wearing rope and the swing limiting member, ensuring the fixed connection between the middle part of the first wearing rope and the middle part of the lower end of the swing limiting member when the swing limiting member rotates. The connection method of the first wearing rope and the swing limiting member of the present invention improves the flexibility and simplicity of the installation of the first wearing rope compared with the existing fixing methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic structural diagram of the present invention.

[0033] Figure 2 is a schematic side view of the present invention.

[0034] Figure 3 is Figure 1 a longitudinal sectional view of

[0035] Figure 4 is Figure 1 a schematic structural diagram of the mask body and the protective housing in

[0036] Figure 5 is Figure 1 a schematic diagram of the use state when installing the wearing rope.

[0037] Figure 6 is Figure 4 a schematic diagram of the use state of the wearing rope during the counterclockwise rotation of the swing limiting member in

[0038] Figure 7 is Figure 4Schematic diagram of the usage state of the wearing rope when the middle swing limiting member rotates counterclockwise to the in-place position.

[0039] Figure 8 is Figure 7 side view schematic diagram.

[0040] In the attached drawings: mask body 1, air inlet 101, air outlet 102, positioning block 103, sealing elastomer 2, protective housing 3, ventilation holes 301, through holes 302, connection holes 303, main body part 304, auxiliary body part 305, embedding holes 306, positioning through holes 307, swing limiting member 4, connecting column 401, connecting body 402, flange 403, first wearing rope 5, wedge block 7, long strip hole 8, second wearing rope 6, buckling base 9, buckling member 10, buckling convex plate 11, buckling V-shaped member 12, limiting plate 13. Specific implementation manner

[0041] For the convenience of those skilled in the art to understand, the structure of the present invention will be further described in detail below in conjunction with the attached drawings:

[0042] Refer to Figures 1-8 , a highly-sealed breathing mask capable of being quickly put on and taken off, comprising:

[0043] Mask body 1, corresponding air inlets 101 are provided on both sides of the mask body 1, and a corresponding air outlet 102 is provided in the middle of its lower side;

[0044] One-way valve piece, movably installed outside the mask body 1 at the air outlet 102, the one-way valve piece can be opened outwards during exhalation and closed during inhalation;

[0045] Sealing elastomer 2, installed at the edge of the mask body 1 close to the human face, and the edge of the sealing elastomer 2 is turned inwards; the sealing elastomer 2 can be made of rubber, silica gel or other flexible materials, and is used to improve the sealing performance of the breathing mask when worn;

[0046] Protective housing 3, detachably and fixedly installed on the front side of the mask body 1, used to cover and protect the air outlet and the one-way valve piece, ventilation holes 301 communicating the inside and outside of the protective housing 3 are provided on the protective housing 3, and a set of symmetrically arranged through holes 302 and a set of symmetrically arranged connection holes 303 are respectively provided at the upper and lower ends of the protective housing 3;

[0047] Swing limiting member 4, rotatably installed outside the protective housing 3; used to cooperate with the installation of the first wearing rope 5 and adjust the tightness of the first wearing rope 5;

[0048] The first wearing rope 5 can be movably inserted through the through holes 302 on the left side, fixedly connected to the swing limiting member 4, and movably inserted through the through holes 302 on the right side in sequence, and the two end portions thereof are respectively wound around the head and then connected to each other;

[0049] The second wearing ropes 6 are respectively connected to the corresponding second wearing ropes 6 at the connection holes 303, and the end portions of the two second wearing ropes 6 are connected;

[0050] The limiting and fixing assembly: At least one set of limiting and fixing assemblies for limiting and fixing the swing limiting member 4 after it rotates clockwise to the in-place position is arranged between the swing limiting member 4 and the protective housing 3. The limiting and fixing assembly includes two wedges 7 fixedly connected to the swing limiting member 4 and the protective housing 3 respectively; when the swing limiting member 4 rotates clockwise to the in-place position, that is, when it rotates to the rear side of the vertical line, the first wearing rope 5 located between the swing limiting member 4 and the through hole 302 is in a tensioned state, and the two corresponding wedges 7 overlap each other to limit and fix the swing limiting member 4; after the swing limiting member 4 rotates counterclockwise to the in-place position, the first wearing rope 5 located between the swing limiting member 4 and the through hole 302 is in a relaxed state, and the breathing mask can be stretched out of the human face along the first wearing rope 5 through the cooperation of the through hole 302.

[0051] Through the optimization and improvement of the structure, the present invention movably installs a corresponding swing limiting member 4 for adjusting the tightness of the front end of the first wearing rope 5 connecting the head. Thus, without disassembling the adjustment buckle or adjusting the tightness of the first wearing rope 5, and without changing the wearing position of the first wearing rope 5 on the head, the tightness of the first wearing rope 5 can be quickly and conveniently adjusted by rotating the swing limiting member 4 clockwise or counterclockwise, thereby realizing the quick temporary detachment and reset of the mask body 1, and further effectively improving the convenience performance of wearing and taking off the breathing mask.

[0052] Through the mutual cooperation of the structural improvement of the protective housing 3 and the added swing limiting member 4, and the first wearing rope 5 is installed by movably inserting through the through hole 302 on the left side of the swing limiting member 4, fixedly connecting the swing limiting member 4, and movably inserting through the through hole 302 on the right side in sequence. After the breathing mask is worn, only by adjusting the rotation angle of the swing limiting member 4 to change the tightness of the first wearing rope 5, that is, when the swing limiting member 4 rotates clockwise to the in-place position, that is, when it rotates to the rear side of the vertical line, the first wearing rope 5 located between the swing limiting member 4 and the through hole 302 is in a tensioned state; after the swing limiting member 4 rotates counterclockwise to the in-place position, the first wearing rope 5 located between the swing limiting member 4 and the through hole 302 is in a relaxed state, and the breathing mask can be stretched out of the human face along the first wearing rope 5 through the cooperation of the through hole 302. The adjustment method is simpler, and the swing limiting member is arranged on the front side, so the operation is more convenient.

[0053] When the swing limiting member 4 rotates clockwise to the position where it reaches the rear side of the vertical line, the angle between the swing limiting member 4 and the vertical line where its hinge point is located is an acute angle not greater than 45°.

[0054] Based on the addition of the above swing limiting member 4, the present invention further provides a corresponding limiting and fixing assembly between the swing limiting member 4 and the protective housing 3. The limiting and fixing assembly can be wedges 7 respectively fixed on the swing limiting member 4 and the protective housing 3. The two wedges 7 are overlapped with each other to fix the swing limiting member 4, which can not only ensure that the swing limiting member 4 is firmly fixed to prevent loosening and ensure the use effect, but also can easily and quickly apply an external force to disengage the connection of the two wedges 7 to make the swing limiting member 4 rotate, further ensuring the practical effect of the present invention. And when the swing limiting member 4 rotates clockwise to the in-place position, since the first wearing rope 5 is in a tensioned state, and the angle between the swing limiting member 4 and the vertical line where its hinge point is located is an acute angle not greater than 45°, the swing limiting member 4 has a tendency to swing backward clockwise. At this time, the limiting and fixing assembly can form an effective stroke limit for the swing limiting member 4 to prevent it from swinging backward continuously. Under the interaction of forces, the two wedges 7 of the limiting and fixing assembly can be clamped, so that the breathing mask has a corresponding acting force in the direction of the human face at the position of the limiting and fixing assembly, and cooperates with the two pulling points above and below when the original first wearing rope 5 is installed to balance the force to avoid the middle bulge of the sealing elastomer 2 and ensure the sealing performance of the breathing mask.

[0055] The protective housing 3 includes a main body portion 304 and an auxiliary body portion 305 integrally formed and protruding on the front side of the main body portion 304. The ventilation holes 301 are provided through the lower side or the front side of the auxiliary body portion 305. When the ventilation holes 301 are provided on the front side of the auxiliary body portion 305, guide partition strips are integrally formed and fixed on the outside of the ventilation holes 301 at intervals from top to bottom, and the guide partition strips are gradually inclined downward from inside to outside.

[0056] The swing limiting member 4 is arranged in a U-shaped or V-shaped structure, and corresponding connecting columns 401 are integrally formed and fixed on the relative inner sides of its two ends. Corresponding embedding holes 306 are recessed inwardly on both sides of the auxiliary body portion 305 of the protective housing 3. The swing limiting member 4 is rotatably mounted on the protective housing 3 by respectively installing the connecting columns 401 in the embedding holes 306.

[0057] The swing limiting member 4 includes a connecting body 402 and convex edges 403 integrally formed and protruding upward on both sides of the connecting body 402. The convex edges 403 and the connecting body 402 cooperate to form a corresponding guide groove for limiting and accommodating the first wearing rope 5.

[0058] The present invention rotatably mounts a swing limiting member 4 on the outer side of a protective housing 3. A first wearing rope 5 passes through a through hole 302 on the left side in sequence, is fixedly connected to the swing limiting member 4, passes through a through hole 302 on the right side, and its two end portions are connected to each other after winding around the head. After the swing limiting member 4 rotates clockwise to the in-place position, the first wearing rope 5 is arranged, stretched and tensioned along a guide groove on the swing limiting member 4. After the swing limiting member 4 rotates counterclockwise to the in-place position, the first wearing rope 5 is disengaged from the limit of the guide groove and is in a relaxed state. And a breathing mask is movably inserted and connected to the first wearing rope 5 through the through hole 302. Furthermore, the breathing mask can be pulled outwards along the relaxed first wearing rope 5 through the cooperation of the through hole 302 without affecting the connection of the first wearing rope 5 at the rear side of the head. Therefore, when re-wearing the mask, the breathing mask is directly placed on the face, and the swing limiting member 4 is rotated clockwise, so that the first wearing rope 5 can be in a tensioned state, and the breathing mask is fixedly worn without adjusting the length of the first wearing rope 5, further ensuring and improving the practical effect of the present invention.

[0059] At least one set of connection components for connecting the first wearing rope 5 is arranged in the middle of the lower end of the connection body 402. The connection components include two long holes 8 penetrating through the upper and lower end faces of the connection body 402, and the first wearing rope 5 is fixedly arranged by alternately passing through the long holes 8 up and down in sequence.

[0060] The present invention arranges at least one set of long holes 8 in the middle of the lower end of the swing limiting member 4 for connecting the first wearing rope 5 and the swing limiting member 4. The long holes 8 are preferably three sets symmetrically. The first wearing rope 5 is connected and fixed by alternately passing through up and down in sequence. Existing fixing methods such as bonding and bolt locking can also be used to fix the middle part of the first wearing rope 5 and the swing limiting member 4, ensuring the fixed connection between the middle part of the first wearing rope 5 and the middle part of the lower end of the swing limiting member 4 when the swing limiting member 4 rotates. The connection method of the first wearing rope 5 and the swing limiting member 4 in the present invention improves the flexibility and simplicity of the installation of the first wearing rope 5 compared with the existing fixing methods.

[0061] A first buckling component and a second buckling component for detachably mounting the protective housing 3 are arranged up and down between the protective housing 3 and the mask body 1. The first buckling component includes a buckling base 9 and a buckling member 10 fixedly connected to the upper sides of the mask body 1 and the protective housing 3 respectively. The second buckling component includes a buckling convex plate 11 and a buckling V-shaped member 12 fixedly connected to the lower sides of the mask body 1 and the protective housing 3 respectively. The buckling base 9 buckles the buckling member 10 from top to bottom, and the buckling V-shaped member 12 buckles the buckling convex plate 11 from bottom to top.

[0062] A limiting plate 13 for limiting and abutting the swing limiting member 4 is arranged on the protective housing 3, and the limiting plate 13 is integrally formed by extending downward from the end of the buckling V-shaped member 12.

[0063] A positioning block 103 for positioning and installing the protective housing 3 is provided on the upper side of the mask body 1, and a positioning through hole 307 adapted to the shape of the positioning block 103 is provided on the protective housing 3.

[0064] The end of the first wearing rope 5 is connected through a corresponding adjustment buckle or is connected through the cooperation of an adjustment buckle and a headrest. The headrest is connected to the end of the corresponding first wearing rope 5 through a corresponding adjustment buckle, and the ends of the two second wearing ropes 6 are also connected through a corresponding adjustment buckle.

[0065] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A high-seal breathing mask that can be quickly put on and taken off, characterized in that: include: A mask body (1), wherein both sides of the mask body (1) are provided with corresponding air inlet ports (101), and a corresponding air outlet port (102) is provided in the middle of the lower side thereof; a one-way valve sheet, movably mounted on the mask body (1) and located outside the air outlet (102), the one-way valve sheet being able to open outwards during exhalation and being closed during inhalation; A sealing elastic body (2) is mounted on the edge of the mask body (1) close to the face of the person, and the edge of the sealing elastic body (2) is folded inwards; A protective shell (3) is detachably fixedly mounted on the front side of the mask body (1) and is used to cover and protect the air outlet and the one-way valve plate. The protective shell (3) is provided with an air vent (301) communicating with the inside and outside thereof. The upper and lower ends of the protective shell (3) are respectively provided with a group of mutually symmetrical through holes (302) and a group of mutually symmetrical connecting holes (303); A swing limiter (4) is rotatably mounted on the outside of the protective shell (3); and is used to cooperate with the installation of the first wearing rope (5) and to adjust the tightness of the first wearing rope (5); The first wearing rope (5) is sequentially and movably inserted into the through hole (302) on the left side, fixedly connected to the swing limiter (4), and movably inserted into the through hole (302) on the right side, and its two ends are respectively wrapped around the head and then connected to each other; A second wearing rope (6), wherein the connecting holes (303) are respectively connected to corresponding second wearing ropes (6), and the ends of the two second wearing ropes (6) are connected; A fixing component, wherein at least one group of fixing components for fixing the swing limiter (4) after the swing limiter (4) is rotated clockwise to a certain position is provided between the swing limiter (4) and the protective shell (3), and the fixing component comprises two wedge blocks (7) respectively fixed to the swing limiter (4) and the protective shell (3); when the swing limiter (4) is rotated clockwise to a certain position, i.e., to the rear side of the vertical line, the first wearing rope (5) between the swing limiter (4) and the through hole (302) is arranged in a tensioned state, and the two corresponding wedge blocks (7) overlap each other to fix the swing limiter (4); when the swing limiter (4) is rotated counterclockwise to a certain position, the first wearing rope (5) between the swing limiter (4) and the through hole (302) is in a relaxed state, and the breathing mask can be pulled outwards along the first wearing rope (5) through the cooperation of the through hole (302) to be detached from the human face.

2. A high-seal breathing mask that can be quickly put on and taken off according to claim 1, characterized in that: When the swing limiter (4) is rotated clockwise to the rear of the vertical line, the angle between the swing limiter (4) and the vertical line at which its hinge point is located is an acute angle of no more than 45°.

3. A high-seal breathing mask that can be quickly put on and taken off according to claim 1, characterized in that: The protective shell (3) comprises a main body (304) and an auxiliary body (305) having an integrally formed protrusion arranged on the front side of the main body (304); the air vent (301) is arranged through the lower side or the front side of the auxiliary body (305); when the air vent (301) is arranged on the front side of the auxiliary body (305), the outer side of the air vent (301) is integrally formed with guide strips arranged at intervals from top to bottom, and the guide strips are arranged to be gradually inclined downward from the inside to the outside.

4. A high-seal breathing mask that can be quickly put on and taken off according to claim 3, characterized in that: The swing limiter (4) is arranged in a U-shaped or V-shaped structure, and corresponding connecting columns (401) are integrally formed and fixedly connected on the opposite inner sides of the two end portions, and corresponding embedding holes (306) are recessed inwardly on both sides of the auxiliary body (305) of the protective shell (3), and the connecting columns (401) are respectively installed in the embedding holes (306) to rotatably install the swing limiter (4) on the protective shell (3).

5. A high-seal breathing mask that can be quickly put on and taken off according to claim 1, characterized in that: The swing limiting member (4) comprises a connecting body (402) and an integrally formed flange (403) protruding upwardly and arranged on both side edges of the connecting body (402); the flange (403) cooperates with the connecting body (402) to form a corresponding guide groove for limiting and accommodating the first wearing rope (5).

6. A high-seal breathing mask that can be quickly put on and taken off according to claim 5, characterized in that: At least one group of connection components for connecting the first wearing rope (5) is arranged in the middle of the lower end of the connecting body (402), and the connection component comprises two elongated holes (8) penetrating the upper and lower end surfaces of the connecting body (402), and the first wearing rope (5) is fixedly arranged by alternately inserting the elongated holes (8) in sequence.

7. A high-seal breathing mask that can be quickly put on and taken off according to claim 1, characterized in that: A first buckling assembly and a second buckling assembly for detachably mounting the protective shell (3) are arranged between the protective shell (3) and the mask body (1) above and below, the first buckling assembly comprising a buckling base (9) and a buckling member (10) respectively fixed to the upper sides of the mask body (1) and the protective shell (3), and the second buckling assembly comprising a buckling convex plate (11) and a buckling V-shaped member (12) respectively fixed to the lower sides of the mask body (1) and the protective shell (3), the buckling base (9) buckles the buckling member (10) from top to bottom, and the buckling V-shaped member (12) buckles the buckling convex plate (11) from bottom to top.

8. A high-seal breathing mask that can be quickly put on and taken off according to claim 7, characterized in that: The protective housing (3) is provided with a limiting plate (13) for limiting and abutting against the swing limiting member (4); the limiting plate (13) is formed integrally by extending downward from the end of the buckling V-shaped member (12).

9. A high-seal breathing mask that can be quickly put on and taken off according to claim 1, characterized in that: A positioning block (103) for positioning and installing the protective shell (3) is provided on the upper side of the mask body (1), and a positioning through hole (307) matching the shape of the positioning block (103) is provided on the protective shell (3).

10. A high-seal breathing mask that can be quickly put on and taken off according to claim 1, characterized in that: The ends of the first wearing rope (5) are connected via corresponding adjustment buckles or are connected via the adjustment buckle and the head support, the head support and the end of the corresponding first wearing rope (5) are connected via the corresponding adjustment buckle, and the ends of the two second wearing ropes (6) are also connected via the corresponding adjustment buckle.

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