Protective mask

Abstract

The utility model provides a protective mask which comprises a mask body provided with a containing cavity. The supporting assembly comprises a supporting column and an attaching structure, one end of the supporting column is contained in the containing cavity, the other end of the supporting column is connected with the attaching structure, and the attaching structure is arranged in a protruding mode relative to the peripheral side surface of the supporting column; the pressing piece is fixed to the surface of the peripheral side of the supporting column, a plurality of buckling grooves are further formed in the cover body, the pressing piece is connected with the buckling grooves in a buckled mode, and the pressing piece is matched with the buckling grooves to form a plurality of gears; on the peripheral side surface of the supporting column, the protruding height of the pressing piece is smaller than the protruding height of the attaching structure. The projection of the pressing piece in the axial direction of the supporting column falls on the attaching structure. When the protective mask collides with other parts by mistake, the attaching structure collides with the other parts before the pressing piece, so that the pressing piece is prevented from being pressed, the phenomenon of buckling dislocation between the pressing piece and the multiple buckling grooves is prevented, and the use experience of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a protective mask. Background Art

[0002] Medical protective masks are a common protective tool in hospitals. Medical staff can effectively cover their faces by wearing protective masks, thereby blocking droplets, thereby reducing the infectiousness of bacteria and viruses, and effectively protecting medical staff. Due to the differences in head dimensions of different users, medical protective masks need to be adjustable to fit different head dimensions.

[0003] In the related art, the protective mask includes a mask body, a support assembly and a pressing piece. The mask body is provided with a receiving cavity, one end of the support assembly extends into the receiving cavity, and the other end is provided with a buckle groove. The pressing piece is provided on the cup, and the pressing piece buckles into the buckle groove to connect the support assembly and the mask body; wherein, there are multiple buckle grooves on the support assembly, and the pressing piece cooperates with the multiple buckle grooves to achieve gear adjustment. However, since the pressing piece is provided on the mask body, the pressing piece is exposed on the surface of the protective mask. When the protective mask accidentally touches other parts, the pressing piece will be pressed and unfastened, resulting in buckle misalignment, affecting the user experience. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a protective mask, aiming to solve the problem in the related art that when the protective mask is bumped, the pressing piece is pressed and misaligned.

[0005] In order to solve the above technical problems, the utility model provides a protective mask, comprising:

[0006] The cover body is provided with a receiving cavity;

[0007] A support assembly, comprising a support column and a fitting structure, wherein one end of the support column is received in the accommodating cavity, and the other end is connected to the fitting structure, and the fitting structure is arranged to be raised relative to the peripheral side surface of the support column; and

[0008] A pressing sheet is fixed to the surface of the peripheral side of the support column, and the cover body is also provided with a plurality of buckling grooves spaced apart along the length direction of the accommodating cavity, the pressing sheet is buckled and connected with the buckling grooves, and the pressing sheet and the plurality of buckling grooves cooperate with each other to form a plurality of gears;

[0009] Wherein, on the peripheral side surface of the support column, the protrusion height of the pressing sheet is smaller than the protrusion height of the fitting structure; and the projection of the pressing sheet along the axial direction of the support column falls on the fitting structure.

[0010] Optionally, the fitting structure includes a baffle fixed to one end of the support column away from the cover body, the end of the baffle is protruded relative to the peripheral surface of the support column, the end of the pressing plate close to the baffle is a pressing end, and the protruding height of the pressing end of the pressing plate is smaller than the protruding height of the baffle.

[0011] Optionally, two pressing sheets are provided, positions of the two pressing sheets respectively correspond to positions of two ends of the blocking sheet, and the two pressing sheets are buckled into the same buckling groove.

[0012] Optionally, each of the snap-fit ​​grooves is distributed continuously or at intervals along the circumferential direction.

[0013] Optionally, the blocking piece, the pressing piece and the supporting column are connected as one body.

[0014] Optionally, the fitting structure further includes a soft rubber pad, and the soft rubber pad is fixed to a side of the baffle away from the cover body.

[0015] Optionally, a positioning portion is provided on the peripheral surface of the support column, a positioning groove is provided on the inner peripheral wall of the accommodating cavity, the length of the positioning groove extends along the length direction of the accommodating cavity, and the positioning portion is assembled in the positioning groove.

[0016] Optionally, the positioning portion is arranged opposite to the plate surface of the pressing sheet, and the positioning groove adopts a dovetail groove structure.

[0017] Optionally, a limiting portion is further provided on the peripheral side surface of the support column, a limiting groove communicating with the accommodating cavity is provided on the cover body, the length of the limiting groove extends along the length direction of the accommodating cavity, and the limiting portion is assembled in the limiting groove;

[0018] Wherein, when the pressing piece is buckled into the buckling groove and is in the first gear position, the limiting portion abuts against one end of the limiting groove close to the supporting column.

[0019] Optionally, the protective mask further includes an elastic member, the interior of the support column is hollow, one end of the elastic member is accommodated in the support column, and the other end is accommodated in the accommodating cavity.

[0020] Compared with the related art, the protective mask in the utility model has the beneficial effect that: since the pressing piece and the fitting structure are both arranged on the supporting column, and the protruding height of the pressing piece is smaller than the protruding height of the fitting structure, the projection of the pressing piece along the axial direction of the supporting column falls on the fitting structure, so that when the protective mask accidentally collides with other components, the fitting structure will collide with other components before the pressing piece, thereby avoiding the pressing piece from being pressed, preventing the pressing piece and the multiple snap-fitting grooves from being misaligned, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is an overall structural diagram of the protective mask provided by the embodiment of the utility model;

[0023] Figure 2 It is an exploded view of the protective mask provided by the embodiment of the utility model;

[0024] Figure 3 is a cross-sectional view of a protective mask provided by an embodiment of the utility model;

[0025] Figure 4 yes Figure 3 A magnified view of detail A;

[0026] Figure 5 It is a schematic diagram of the connection relationship between the support column, the baffle plate and the pressing plate in the protective mask provided by the embodiment of the utility model;

[0027] Figure 6 It is a schematic structural diagram of a mask body in a protective mask provided in an embodiment of the utility model.

[0028] In the accompanying drawings, the various reference numerals represent: 1. cover body; 11. cover body; 12. connecting tube; 121. accommodating chamber; 122. positioning groove; 123. snap-fit ​​groove; 124. limiting groove; 125. protrusion; 13. positioning tube; 2. support column; 21. positioning part; 22. limiting part; 23. connecting block; 3. baffle; 31. positioning hole; 4. soft rubber pad; 5. pressing sheet; 51. pressing end; 52. snap-fit ​​end; 6. elastic member; 7. positioning column. DETAILED DESCRIPTION

[0029] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" and "several" is two or more, unless otherwise clearly and specifically defined.

[0032] Example:

[0033] See also Figure 1 and Figure 2 The embodiment of the utility model provides a protective mask, including a mask body 1, a support assembly and a pressing piece 5. The mask body 1 is provided with a receiving cavity 121; the support assembly includes a support column 2 and a fitting structure, one end of the support column 2 is accommodated in the receiving cavity 121, and the other end is connected to the fitting structure, and the fitting structure is convexly arranged relative to the peripheral surface of the support column 2; the pressing piece 5 is fixed to the peripheral surface of the support column 2, and the mask body 1 is also provided with a plurality of snap-fit ​​grooves 123 spaced apart along the length direction of the receiving cavity 121, the pressing piece 5 is snap-fitted with the snap-fit ​​grooves 123, and the pressing piece 5 cooperates with the plurality of snap-fit ​​grooves 123 to form a plurality of gears; wherein, on the peripheral surface of the support column 2, the protruding height of the pressing piece 5 is less than the protruding height of the fitting structure; the projection of the pressing piece 5 along the axial direction of the support column 2 falls on the fitting structure.

[0034] Since the pressing sheet 5 and the fitting structure are both arranged on the support column 2, and the protruding height of the pressing sheet 5 is smaller than the protruding height of the fitting structure, the projection of the pressing sheet 5 along the axial direction of the support column 2 falls on the fitting structure, so that when the protective mask accidentally collides with other components, the fitting structure will collide with other components before the pressing sheet 5, thereby avoiding the pressing sheet 5 from being pressed, preventing the pressing sheet 5 and the multiple snap-fitting grooves 123 from being misaligned, and improving the user experience.

[0035] It should be noted that the buckle misalignment refers to the transition of the pressing piece 5 from being buckled with one of the multiple buckle grooves 123 to being buckled with another. In the related art, since the pressing piece 5 is arranged on the mask body 1, when the protective mask accidentally touches other components, the pressing piece 5 will be pressed by other components, and the pressing piece 5 will be unfastened from the buckle groove 123. At this time, the support column 2 will move along the length direction of the accommodating cavity 121, and the pressing piece 5 will move to be buckled with another buckle groove 123 under the drive of the support column 2, thereby causing the buckle misalignment phenomenon.

[0036] See also Figure 1 , Figure 2 and Figure 5 The fitting structure includes a baffle 3 fixed to the end of the support column 2 away from the mask body 1, the end of the baffle 3 is raised relative to the peripheral surface of the support column 2, and the end of the pressing sheet 5 close to the baffle 3 is a pressing end 51, and the protruding height of the pressing end 51 of the pressing sheet 5 is smaller than the protruding height of the baffle 3, so that when the protective mask is bumped, the end of the baffle 3 will contact other components before the pressing end 51 of the pressing sheet 5, thereby ensuring that the pressing end 51 of the pressing sheet 5 will not be pressed by other components, avoiding the phenomenon of buckling misalignment between the baffle 3 and the multiple buckling grooves 123.

[0037] It should be noted that the projection of the pressing sheet 5 along the axial direction of the support column 2 falls on the baffle 3, and the projection of the pressing sheet 5 is located between the end of the pressing sheet 5 and the support column 2 to ensure that the end of the baffle 3 will contact other components before the pressing end 51 of the pressing sheet 5; the end of the pressing sheet 5 away from the baffle 3 is the snap-fit ​​end 52, and the snap-fit ​​end 52 of the pressing sheet 5 is snap-fitted and connected to the snap-fit ​​groove 123.

[0038] See also Figure 1 , there are two pressing pieces 5, the positions of the two pressing pieces 5 correspond to the positions of the two ends of the baffle 3, and the two pressing pieces 5 are buckled into the same buckling groove 123. Specifically, the baffle 3 is symmetrically arranged with the support column 2 as the axis of symmetry, that is, the support column 2 is connected to the middle area of ​​the baffle 3; the two pressing pieces 5 are symmetrically arranged with the support column 2 as the axis of symmetry, and the projections of the two pressing pieces 5 along the axial direction of the support column 2 fall on the plate surfaces at both ends of the baffle 3 respectively, so that the baffle 3 can contact other components before the two pressing pieces 5, avoiding any pressing piece 5 from being pressed due to the collision of the protective mask. By setting the two pressing pieces 5 to buckle into the same buckling groove 123, the connection strength between the support column 2 and the cover body 1 can be improved, and the support column 2 and the cover body 1 can be avoided from shaking easily; moreover, since the two pressing pieces 5 are symmetrically arranged, it is convenient to apply force to the pressing end 51 of the pressing piece 5, so that the pressing piece 5 is buckled into the buckling groove 123 or unfastened.

[0039] It should be noted that the pressing sheet 5 is connected to the support column 2 through the connecting block 23. Specifically, one end of the connecting block 23 is connected to the outer peripheral side surface of the support column 2, and the other end is connected to the pressing sheet 5. The connection between the connecting block 23 and the pressing sheet 5 is located in the middle part of the pressing sheet 5, so that after the pressing end 51 of the pressing sheet 5 is pressed or released, the buckling end 52 of the pressing sheet 5 will rise or fall, thereby realizing the buckling and unlocking of the buckling end 52 of the pressing sheet 5 and the buckling groove 123.

[0040] See also Figure 1 , Figure 2 and Figure 6 Each snap-fit ​​groove 123 is spaced apart along the circumferential direction. For example, each snap-fit ​​groove 123 is divided into two segments of snap-fit ​​sub-grooves along the circumferential direction, and the two pressing sheets 5 are snapped into the two segments of snap-fit ​​sub-grooves respectively. Specifically, the cover body 1 includes a cover body 11 and a connecting tube 12 fixed to one end of the cover body 11. The connecting tube 12 has a receiving cavity 121. The outer circumferential side of the connecting tube 12 is provided with a plurality of protrusions 125 spaced apart along the length direction of the receiving cavity 121, and a snap-fit ​​groove 123 is formed between two adjacent protrusions 125. For example, four protrusions 125 are respectively provided on opposite sides of the outer peripheral side of the connecting tube 12, and the four protrusions 125 on each side jointly form three snap-fit ​​grooves 123. The snap-fit ​​end 52 of the pressing plate 5 is snap-fitted with the first snap-fit ​​groove 123 to form a first gear position, at which time the length of the end of the support column 2 extending out of the accommodating cavity 121 is the longest; the snap-fit ​​end 52 of the pressing plate 5 is snap-fitted with the second snap-fit ​​groove 123 to form a second gear position, at which time the length of the end of the support column 2 extending out of the accommodating cavity 121 is reduced; the snap-fit ​​end 52 of the pressing plate 5 is snap-fitted with the third snap-fit ​​groove 123 to form a third gear position, at which time the length of the end of the support column 2 extending out of the accommodating cavity 121 is the shortest, so that the fitting structure can be driven forward and backward by the support column 2 to adapt to the forehead height of different people. According to actual needs, each snap-fit ​​groove 123 can also be distributed continuously along the circumference, that is, the snap-fit ​​groove 123 is annular.

[0041] See also Figure 1 , Figure 2 and Figure 5 In some embodiments, the baffle 3, the pressing sheet 5 and the support column 2 are connected as one body, which is convenient for molding the protective mask. Preferably, the baffle 3, the pressing sheet 5 and the support column 2 are all made of plastic, that is, the baffle 3, the pressing sheet 5 and the support column 2 are integrally molded by injection molding. The fitting structure also includes a soft rubber pad 4, which is fixed to the side of the baffle 3 away from the mask body 1. The soft rubber pad 4 can be a silicone pad. A positioning column 7 is provided on the soft rubber pad 4, and a positioning hole 31 is provided on the baffle 3. The positioning column 7 is interference-fitted in the positioning hole 31, thereby realizing the mutual fixation between the soft rubber pad 4 and the baffle 3.

[0042] See also Figure 2 , Figure 3 and Figure 4 The peripheral surface of the support column 2 is provided with a positioning portion 21, and the inner peripheral wall of the accommodating cavity 121 is provided with a positioning groove 122. The length of the positioning groove 122 extends along the length direction of the accommodating cavity 121. The positioning portion 21 is assembled in the positioning groove 122, which can not only prevent the support column 2 from rotating relative to the connecting tube 12, avoid the support column 2 from shaking, but also further prevent the buckle misalignment phenomenon. Preferably, the positioning portion 21 is arranged opposite to the plate surface of the pressing plate 5, which is conducive to preventing the buckle end 52 of the pressing plate 5 from rotating in the buckle groove 123 along the circumferential direction; there are two positioning portions 21 and two positioning grooves 122, which is conducive to ensuring that the support column 2 and the connecting tube 12 are assembled more tightly; the positioning groove 122 adopts a dovetail groove structure, for example, the connection between the positioning portion 21 and the support column 2 is recessed, and the inner peripheral wall of the connecting tube 12 surrounding the opening of the positioning groove 122 is convex toward the positioning groove 122, thereby forming a dovetail groove structure, which further prevents the buckle misalignment phenomenon.

[0043] See also Figure 1 , Figure 2 and Figure 5 A limiting portion 22 is also provided on the circumferential surface of the support column 2, and the limiting portion 22 is provided at the end of the support column 2 extending into the accommodating cavity 121; a limiting groove 124 connected to the accommodating cavity 121 is provided on the cover body 1, and the length of the limiting groove 124 extends along the length direction of the accommodating cavity 121, and the limiting portion 22 is assembled in the limiting groove 124; wherein, when the pressing piece 5 is buckled into the buckling groove 123 and is in the first gear, the limiting portion 22 abuts against one end of the limiting groove 124 close to the support column 2, so as to prevent the support column 2 from being separated from the accommodating cavity 121 when the buckling end 52 of the pressing piece 5 and the buckling groove 123 are unfastened.

[0044] See also Figure 1 and Figure 2 The protective mask also includes an elastic member 6, the support column 2 is hollow inside, one end of the elastic member 6 is accommodated in the support column 2, and the other end is accommodated in the accommodating cavity 121. The elastic member 6 can be a spring, a positioning cylinder 13 is provided in the connecting cylinder 12, and the elastic member 6 is sleeved on the outer side of the positioning cylinder 13; the elastic member 6 can make the axial movement of the support column 2 smoother and more stable, so that the silicone pad can be adjusted forward and backward under the drive of the support column 2 more smoothly and stably, thereby improving the user experience.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A protective mask, characterized in that: include: The cover body is provided with a receiving cavity; A support assembly, comprising a support column and a fitting structure, wherein one end of the support column is received in the accommodating cavity, and the other end is connected to the fitting structure, and the fitting structure is arranged to be raised relative to the peripheral side surface of the support column; and A pressing sheet is fixed to the surface of the peripheral side of the support column, and the cover body is also provided with a plurality of buckling grooves spaced apart along the length direction of the accommodating cavity, the pressing sheet is buckled and connected with the buckling grooves, and the pressing sheet and the plurality of buckling grooves cooperate with each other to form a plurality of gears; Wherein, on the peripheral side surface of the support column, the protrusion height of the pressing sheet is smaller than the protrusion height of the fitting structure; and the projection of the pressing sheet along the axial direction of the support column falls on the fitting structure.

2. The protective mask according to claim 1, characterized in that: The fitting structure includes a baffle fixed to one end of the support column away from the cover body, the end of the baffle is protruded relative to the peripheral surface of the support column, the end of the pressing plate close to the baffle is a pressing end, and the protruding height of the pressing end of the pressing plate is smaller than the protruding height of the baffle.

3. The protective mask according to claim 2, characterized in that: There are two pressing sheets, the positions of the two pressing sheets correspond to the positions of the two ends of the blocking sheet respectively, and the two pressing sheets are buckled into the same buckling groove.

4. The protective mask according to claim 3, characterized in that: Each of the buckling grooves is distributed continuously or at intervals along the circumferential direction.

5. The protective mask according to claim 2, characterized in that: The blocking piece, the pressing piece and the supporting column are connected as one body.

6. The protective mask according to claim 2, characterized in that: The fitting structure further comprises a soft rubber pad, and the soft rubber pad is fixed to a side of the baffle away from the cover body.

7. The protective mask according to claim 1, characterized in that: The peripheral surface of the support column is provided with a positioning portion, the inner peripheral wall of the accommodating cavity is provided with a positioning groove, the length of the positioning groove extends along the length direction of the accommodating cavity, and the positioning portion is assembled in the positioning groove.

8. The protective mask according to claim 7, characterized in that: The positioning portion is arranged opposite to the plate surface of the pressing piece, and the positioning groove adopts a dovetail groove structure.

9. The protective mask according to claim 1, characterized in that: The peripheral surface of the support column is also provided with a limiting portion, the cover body is provided with a limiting groove connected with the accommodating cavity, the length of the limiting groove extends along the length direction of the accommodating cavity, and the limiting portion is assembled in the limiting groove; Wherein, when the pressing piece is buckled into the buckling groove and is in the first gear position, the limiting portion abuts against one end of the limiting groove close to the supporting column.

10. The protective mask according to claim 1, characterized in that: The protective mask also includes an elastic member, the interior of the support column is hollow, one end of the elastic member is accommodated in the support column, and the other end is accommodated in the accommodating cavity.

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