CN219556400U

CN219556400U - Wear-type n95 gauze mask

Info

Publication number: CN219556400U
Application number: CN202320690929.6U
Authority: CN
Inventors: 王小波; 刘德昭
Original assignee: Fifth Affiliated Hospital of Sun Yat Sen University
Current assignee: Fifth Affiliated Hospital of Sun Yat Sen University
Priority date: 2023-03-31
Filing date: 2023-03-31
Publication date: 2023-08-22
Anticipated expiration: 2033-03-31

Abstract

The utility model relates to the field of medical instruments, in particular to a head-wearing n95 mask. The utility model comprises a mask body and an adjusting device; the adjusting device comprises a cylindrical inner adjusting disc and a cylindrical outer adjusting disc sleeved outside the inner adjusting disc; a circle of first ratchets are arranged on the edge of the disc opening of the inner adjusting disc, and a circle of second ratchets are also arranged on the inner bottom surface of the outer adjusting disc; a cavity is formed between the inner adjusting disc and the outer adjusting disc, and a rotating column and a spring are also arranged in the cavity; the side wall of the inner adjusting disc is provided with a first through hole, the side wall of the outer adjusting disc is provided with a second through hole, two ends of the lacing are fixedly connected with the outer side of the mask body through the first through hole and the second through hole, and the second through hole is arranged below the second ratchet. The utility model aims to provide a head-mounted N95 mask, which solves the problem of low comfort level when medical staff wear the N95 mask.

Description

Wear-type n95 gauze mask

Technical Field

The utility model relates to the field of medical instruments, in particular to a head-wearing n95 mask.

Background

The head-wearing N95 mask is a mask capable of effectively preventing virus infection, wherein the head-wearing N95 mask has high wearing comfort compared with the ear-wearing N95 mask, and is popular with people. The correct wearing method comprises the following steps: the first step: holding the mask by one hand, and fixing the mask on the face with the side with the metal sheet upwards by the aid of the hand; and a second step of: placing the upper lacing over the overhead by pulling the overhead; and a third step of: pulling the lower Fang Jidai under the posterior cervical binaural; fourth step: the two finger clamps are compacted according to the shape of nose bridge to make the mask fit the face. In particular, in clinical medicine, medical staff must wear the mask in a correct wearing mode, so that the risk of infection is prevented from increasing.

The existing head-wearing mask is characterized in that in the wearing process, an upper lacing is positioned behind the brain, a lower lacing is positioned at the neck, the mask is worn for a long time, the upper lacing and the lower lacing can enable medical staff to produce tightening feeling, a certain burden is caused, and the comfort level is low.

Therefore, how to design a wearing-comfort and convenient adjustment head-wearing n95 mask is a technical problem to be solved.

Disclosure of Invention

In order to solve the problems, the utility model aims to provide a head-mounted N95 mask, which solves the problem of low comfort level when medical staff wears the N95 mask.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: comprises a mask body, two laces fixedly connected with the outer side of the mask body and an adjusting device arranged on the two laces; the adjusting device comprises a cylindrical inner adjusting disc and a cylindrical outer adjusting disc sleeved outside the inner adjusting disc; a circle of first ratchets are arranged on the edge of the disc opening of the inner adjusting disc, and a circle of second ratchets matched with the first ratchets are also arranged on the inner bottom surface of the outer adjusting disc; the outer adjusting disc comprises a rotary disc arranged in the middle of the outer adjusting disc and a fixed disc arranged around the rotary disc and rotationally connected with the rotary disc; a cavity is formed between the inner adjusting disc and the outer adjusting disc, and a spring is arranged in the cavity, one end of the spring is connected with the inner bottom surface of the inner adjusting disc, and the other end of the spring is connected with the inner bottom surface of the turntable of the outer adjusting disc; a rotating column is arranged in the cavity; at least three first through holes are formed in the side wall of the inner adjusting disc, at least three second through holes are formed in the side wall of the outer adjusting disc, two ends of the lacing are fixedly connected with the outer side of the mask body through the first through holes and the second through holes, and the second through holes are formed in the lower portion of the second ratchet.

Further, a facial trim strip is arranged at the upper part of the inner side surface of the mask body.

Further, a pad is arranged on one surface of the adjusting device, which is close to the head.

Further, the rotating column comprises an inner rotating column and an outer rotating column which is sleeved outside the inner rotating column and is hollow inside, the top end of the inner rotating column is fixedly connected with the inner top surface of the inner adjusting disc, and the bottom end of the outer rotating column is fixedly connected with the inner bottom surface of the outer adjusting disc.

Further, the turntable is in sliding connection with the fixed disc through a sliding rail.

Further, rubber rings are arranged at the openings of the first through hole and the second through hole.

The utility model has the following beneficial effects:

1. according to the utility model, the adjusting device is arranged, so that the lacing of the head-mounted N95 mask is fixed behind the brain in an X-shaped cross manner, and the wearing stability is improved.

2. The position of the adjusting device behind the brain is adjusted by pulling the lacing, so that medical staff can flexibly move the adjusting device to enable the intersection of the adjusting device to be located at a comfortable position, the neck is prevented from producing tight feeling after the medical staff wears the mask for a long time, and the use comfort of the medical staff is improved.

Drawings

FIG. 1 is a schematic diagram 1 of the present utility model;

FIG. 2 is a schematic cross-sectional view of a conditioning apparatus of the present utility model, shown in FIG. 1;

FIG. 3 is a schematic cross-sectional view of the adjusting device of the present utility model, shown in FIG. 2.

Reference numerals illustrate:

1-a mask body and 11-a facial trim strip;

2-adjusting device, 21-inner adjusting disk, 211-first ratchet, 212-first through hole, 22-outer adjusting disk, 221-second ratchet, 222-second through hole, 223-rotary disk, 224-fixed disk, 23-cavity, 24-spring, 25-rotary column, 251-inner rotary column, 252-outer rotary column, 28-rubber ring;

3-lacing.

Detailed Description

The utility model is described in further detail below with reference to the attached drawings and specific examples:

referring to fig. 1-3, the scheme comprises a mask body 1, two laces 3 fixedly connected with the outer side of the mask body 1, and an adjusting device 2 arranged on the two laces 3; the two laces 3 are crossed by the adjusting device 2 for the crossing point.

The adjusting device 2 comprises a cylindrical inner adjusting disc 21 and a cylindrical outer adjusting disc 22 sleeved outside the inner adjusting disc 21; the edge of the opening of the inner adjusting disk 21 is also provided with a circle of first ratchets 211, and the inner bottom surface of the outer adjusting disk 22 is also provided with a circle of second ratchets 221 matched with the first ratchets 211; the outer adjusting disk 22 includes a rotary disk 223 in the middle thereof, and a fixed disk 224 provided around the rotary disk 223 and rotatably connected to the rotary disk 223. The turntable 223 is slidably connected with the fixed disk 224 through a sliding rail.

A cavity 23 is formed between the inner and outer regulation plates 21 and 22, and a spring 24 having one end connected to the inner top surface of the inner regulation plate 21 and the other end connected to the inner bottom surface of the turntable 223 of the outer regulation plate 22 is provided in the cavity 23. A rotating column 25 is also arranged in the cavity 23; the top of the rotating column 25 is fixedly connected with the inner top surface of the inner adjusting disk 21, and the bottom of the rotating column 25 is fixedly connected with the inner bottom surface of the outer adjusting disk 22.

When the inner adjusting plate 21 is rotated clockwise to rotate relative to the outer adjusting plate 22, the rotary plate 223 is driven to rotate simultaneously by the rotary column 25 and the spring 24, the first ratchet teeth 211 and the second ratchet teeth 221 enable the inner adjusting plate 21 to rotate only in one direction relative to the outer adjusting plate 22, so that the inner adjusting plate 21 or the outer adjusting plate 22 is prevented from reversing after rotation adjustment, if the tie 3 is required to restore to the original state, the inner adjusting plate 21 and the outer adjusting plate 22 are pulled up and down to separate the first ratchet teeth 211 and the second ratchet teeth 221 from each other, and at this time, the inner adjusting plate 21 can be reversed relative to the outer adjusting plate 22. In order to facilitate the rotation or separation of the inner adjusting plate 21 and the outer adjusting plate 22, flanges are further provided at the side positions of the inner adjusting plate 21 and the outer adjusting plate 22 to facilitate the adjustment of the finger force. Finally, the inner and outer adjustment plates 21 and 22 are reset by the spring 24 provided between the inner and outer adjustment plates 21 and 22, and the first and second ratchet teeth 211 and 221 are engaged with each other. At least two springs 24 are provided to increase the number of rotation posts 25 between the turntable 223 and the inner adjustment plate 21 in order to enhance the rotational engagement between the adjustment plate 21 and the turntable 223.

At least three first through holes 212 are formed in the side wall of the inner adjusting disc 21, at least three second through holes 222 are formed in the side wall of the outer adjusting disc 22, and the second through holes 222 are arranged below the second ratchet teeth 221. The number of the first through holes 212 or the second through holes 222 is most preferably 4, as shown in fig. 3, taking the inner adjusting plate 21 as an example, the lacing 3 enters the inner adjusting plate 21 through the first through holes 212 on one side on the outer wall of the inner adjusting plate 21, sequentially passes through the two first through holes 212 on the inner adjusting plate 21 from inside to outside and then from outside to inside, finally passes through the inner adjusting plate 21 from the first through holes 212 on the other side from inside to outside, and the other lacing 3 passes through the outer adjusting plate 22 in the same way as the above steps. In order to conveniently pull out the lacing 3 and adjust the length of the lacing 3, the opening parts of the first through hole 212 and the second through hole 222 are provided with rubber rings 28, the friction force at the opening part is increased by arranging the rubber rings 28 at the opening part, and medical staff can adjust the lacing 3 by pulling the lacing 3 at the left end and the right end.

In order to enable medical staff to wear the mask body 1, the mask body 1 is more adhered to the face, and the face pressing strip 11 is arranged at the edge of the upper portion of the inner side face of the mask body 1, so that the tightness of the upper edge during wearing is improved.

In order to increase the wearing comfort of the mask, a pad is arranged on one surface of the adjusting device 2 close to the head.

The working principle is approximately as follows: in the initial state, the two laces 3 are in a relatively elongated state, the mask is worn on the face, the adjusting device 2 and the two laces 3 are moved to the position of the back brain spoon, the laces at the first through hole 212 or the second through hole 222 on the adjusting device 2 are pulled to shorten and adjust the length, and the relative position of the adjusting device 2 on the laces 3 can be changed by pulling the laces 3, so that the position of the adjusting device 2 behind the brain is adjusted; the inner adjusting plate 21 and the outer adjusting plate 22 are mutually rotated to change the crossing angle of the two laces, so that the lacing 3 is stressed more uniformly when the position of the adjusting device 2 behind the brain is adjusted.

The foregoing description is only specific embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the present utility model and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the present utility model.

Claims

1. A wear-type n95 gauze mask, its characterized in that: comprises a mask body (1), two laces (3) fixedly connected with the outer side of the mask body (1), and an adjusting device (2) arranged on the two laces (3);

the adjusting device (2) comprises a cylindrical inner adjusting disc (21) and a cylindrical outer adjusting disc (22) sleeved outside the inner adjusting disc (21); a circle of first ratchets (211) are arranged on the edge of the disc opening of the inner adjusting disc (21), and a circle of second ratchets (221) matched with the first ratchets (211) are also arranged on the inner bottom surface of the outer adjusting disc (22); the outer adjusting disc (22) comprises a rotary disc (223) arranged in the middle of the outer adjusting disc and a fixed disc (224) arranged around the rotary disc (223) and rotationally connected with the rotary disc (223);

a cavity (23) is formed between the inner adjusting disc (21) and the outer adjusting disc (22), and a spring (24) with one end connected with the inner top surface of the inner adjusting disc (21) and the other end connected with the inner bottom surface of a rotary disc (223) of the outer adjusting disc (22) is arranged in the cavity (23); a rotating column (25) is arranged in the cavity (23);

at least three first through holes (212) are formed in the side wall of the inner adjusting disc (21), at least three second through holes (222) are formed in the side wall of the outer adjusting disc (22), and the second through holes (222) are formed below the second ratchet teeth (221).

2. The head-mounted n95 mask of claim 1, wherein: the upper part of the inner side surface of the mask body (1) is provided with a facial depression bar (11).

3. The head-mounted n95 mask of claim 1, wherein: a pad is arranged on one surface of the adjusting device (2) close to the head.

4. The head-mounted n95 mask of claim 1, wherein: the rotating column (25) comprises an inner rotating column (251) and an outer rotating column (252) which is sleeved outside the inner rotating column (251) and is hollow in the inner portion, the top end of the inner rotating column (251) is fixedly connected with the inner top surface of the inner adjusting disc (21), and the bottom end of the outer rotating column (252) is fixedly connected with the inner bottom surface of the outer adjusting disc (22).

5. The head-mounted n95 mask of claim 1, wherein: the turntable (223) is connected with the fixed disc (224) in a sliding way through a sliding rail.

6. The head-mounted n95 mask of claim 1, wherein: and rubber rings (28) are arranged at openings of the first through hole (212) and the second through hole (222).