CN113907953B

CN113907953B - A device is wrapped to type of ventilating nose for nasal care

Info

Publication number: CN113907953B
Application number: CN202111306523.5A
Authority: CN
Inventors: 郭恩萍; 彭雪; 李佳家; 熊欣; 高磊; 杨琴; 杨芳
Original assignee: First Affiliated Hospital of Army Medical University
Current assignee: First Affiliated Hospital of Army Medical University
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2023-01-31
Anticipated expiration: 2041-11-05
Also published as: CN113907953A

Abstract

The invention discloses a ventilating type nasal bandaging device for nasal nursing, which comprises a nasal sleeve, wherein breathable gauze is arranged in the nasal sleeve, filter components are arranged on the left side and the right side of the nasal sleeve and close to the top end of the nasal sleeve, fixed blocks are arranged on the left side, the right side and the rear side of the nasal sleeve, connecting belts are arranged on the left side and the right side of the nasal sleeve and close to the fixed blocks, and nasal cavity linings which are symmetrical to each other are arranged in the nasal sleeve and close to the front side edge; according to the nasal mask, the air holes are formed in the two sides of the nose to facilitate air permeation, the air on the two sides of the nasal mask can be filtered by the filtering component, the condition that the wounds on the two sides of the nose are polluted by dust to affect recovery is avoided, in addition, the nasal cavity lining can be expanded outwards by rotating the adjusting screw tube, so that the nasal cavity lining is supported in the nasal cavity, the internal part of the nasal cavity is conveniently bound, poor air permeability caused by too much gauze in the nasal cavity is avoided, further, the breathing of a patient is facilitated, and the nursing effect is improved.

Description

A device is wrapped to type of ventilating nose for nasal care

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a ventilating type nose bandaging device for nose care.

Background

Nose shaping can reduce or increase the size of the nose, change the shape of the nose head or bridge, thereby enhancing the appearance of the face, and also correct natural defects or injuries to the nose, and even help alleviate some respiratory problems.

The nose is wrapped very complicated after the operation, the nasal cavity is wrapped, and a lot of gauze cotton cloth and the like are usually filled in the nasal cavity, so that the air permeability in the nasal cavity is poor, and the respiration of a patient is influenced; in addition, the inside gauze of nasal cavity is too much, and is inconvenient to the inside medicine application of nasal cavity, influences the nursing of nasal part, and through filter assembly and nasal cavity facing etc. in the application, wrap the relatively poor problem that influences patient's nasal part nursing of back gas permeability according to the nasal part to improve to the problem that the aforesaid was proposed, conveniently medicine application to the inside of nasal cavity, and make things convenient for the patient to breathe.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Disclosure of Invention

It is an object of the present invention to provide a vented nasal wrap for nasal care that solves the above-mentioned problems of the prior art.

In order to achieve the purpose, the invention provides a ventilating type nose bandaging device for nose nursing, which comprises a nose sleeve, wherein the bottom of the nose sleeve is of an open structure, ventilating gauze is arranged in the nose sleeve, filtering components are arranged on the left side and the right side of the nose sleeve and close to the top end of the nose sleeve, fixing blocks are arranged on the left side and the right side and the rear side of the nose sleeve, connecting belts are arranged on the left side and the right side of the nose sleeve and close to the fixing blocks, and mutually symmetrical nasal cavity linings are arranged in the nose sleeve and close to the front side edge.

In an embodiment of the invention, a buffer pad is arranged inside the nose sleeve and close to the bottom edge, the buffer pad is aligned with the bottom edge of the nose sleeve and is fixedly bonded with the inner wall of the nose sleeve, an arc-shaped groove is arranged on the side wall of the rear side of the nose sleeve and close to the bottom end, an arc-shaped pad is arranged on the inner side of the arc-shaped groove, the arc-shaped pad is in bonding fit with the nose sleeve, a plurality of uniformly distributed air holes are formed in the side walls of the left side and the right side of the nose sleeve, air ventilation is facilitated for the two sides of the nose through the air holes, and the nursing effect is prevented from being influenced by the low air permeability of the nose.

In one embodiment of the invention, the filtering component comprises an outer frame, the outer frame is positioned on the outer side of the air holes and is integrally formed with the side wall of the nose sleeve, an air filtering sheet is arranged on the inner side of the outer frame and is in clamping fit with the outer frame, a cover plate is arranged on the outer side of the outer frame and is in clamping fit with the outer frame, a plurality of uniformly distributed air holes are formed in the cover plate, air on two sides of the nose sleeve can be filtered through the filtering component, and the situation that wounds on two sides of the nose are polluted by dust to affect recovery is avoided.

In an embodiment of the invention, the anti-slip pads are arranged on the left side and the right side of the nose sleeve and close to the edge of the bottom, the anti-slip pads and the nose sleeve are integrally formed, a plurality of anti-slip convex blocks which are uniformly distributed are arranged at the bottom of the anti-slip pads, and the anti-slip pads have an anti-slip effect and can prevent the nose sleeve from falling off.

In an embodiment of the invention, the fixed block is provided with an insertion slot, the connecting belt is provided with a movable belt near the center, one side of the movable belt near the connecting belt is provided with a movable ring, the movable ring is connected with the connecting belt in a sliding manner, the left side and the right side of the connecting belt and one side of the movable belt near the nose sleeve are provided with connecting blocks, the left side and the right side of each connecting block are provided with clamping blocks, the connecting blocks are fixedly connected with the insertion slot in a clamping manner through the clamping blocks, the nose sleeve is conveniently fixed on the outer side of the nose through the connecting belt, and the nose is conveniently bound.

In an embodiment of the invention, the nasal cavity lining is composed of a plurality of linings distributed in an annular array, connecting pipes are arranged on the nasal cavity lining and close to the edge of the front side, the connecting pipes and the nasal cavity lining are integrally formed, the connecting pipes penetrate through the side wall of the front side of the nasal sleeve and are fixedly welded with the side wall of the nasal sleeve, wedge-shaped pieces distributed in an annular array are arranged on the inner side of the nasal cavity lining, the wedge-shaped pieces and the nasal cavity lining are integrally formed, and the nasal cavity can be supported through the nasal cavity lining, so that the nasal cavity can be conveniently wrapped, and poor ventilation caused by excessive gauze in the nasal cavity is avoided.

In an embodiment of the invention, an adjusting screw tube is arranged at the inner side of the nasal cavity lining and near the front end, the adjusting screw tube is of a hollow structure with openings at two ends, a threaded section is arranged on the circumferential outer wall of the adjusting screw tube, the adjusting screw tube penetrates through the connecting tube and is in threaded connection with the connecting tube, an extrusion head is arranged at one side of the adjusting screw tube near the nasal cavity lining, a hexagonal block is arranged at one side of the adjusting screw tube far from the nasal cavity lining, the adjusting screw tube, the extrusion head and the hexagonal block are integrally formed, and the adjusting screw tube can be rotated to support the nasal cavity lining, so that the inner part of the nasal cavity can be conveniently wrapped.

In an embodiment of the present invention, a shrink sleeve is disposed at a front side of the adjusting screw tube, the shrink sleeve and the adjusting screw tube are integrally formed, an inner lining ring is disposed inside the shrink sleeve and near the hexagonal block, the inner lining ring and the shrink sleeve are integrally formed, a limit block is disposed on the shrink sleeve and near a front edge, a plurality of uniformly distributed annular grooves are disposed on a circumferential outer wall of the shrink sleeve, and an infusion tube can be externally connected through the shrink sleeve, so that an atomized liquid medicine can be delivered into a nasal cavity, the administration of the atomized liquid medicine into the nasal cavity is facilitated, and a nursing effect of the nasal cavity is improved.

In an embodiment of the invention, a movable sleeve is arranged on the outer side of the shrinkage sleeve, the movable sleeve is arranged on the outer side of the shrinkage sleeve and is in sliding connection with the shrinkage sleeve, fixing rings which are parallel to each other are arranged on the circumferential inner wall of the movable sleeve, each fixing ring corresponds to one of the annular grooves, the fixing rings are in clamping fit with the annular grooves, the shrinkage sleeve can be extruded through the movable sleeve, and the shrinkage sleeve can conveniently fix an externally-connected infusion tube.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. according to the invention, the air holes facilitate the ventilation of the two sides of the nose, so that the nursing effect is prevented from being influenced by the low air permeability of the nose, and meanwhile, the air on the two sides of the nose sleeve can be filtered by the filtering component, so that the recovery is prevented from being influenced by the dust on the wounds on the two sides of the nose.

2. According to the nasal cavity lining, the nasal cavity lining and the adjusting screw tube are arranged, the adjusting screw tube is rotated to enable the extrusion head to extrude the nasal cavity lining, the nasal cavity lining can be expanded outwards, so that the inner part of the nasal cavity is supported, the inner part of the nasal cavity is conveniently bound, poor ventilation caused by excessive gauze in the nasal cavity is avoided, further, the breathing of a patient is facilitated, and the nursing effect is improved.

3. The invention is provided with the shrink sleeve which can be externally connected with the infusion tube, and the inner lining ring can be supported and fixed at the inner side of the externally connected infusion tube, so that atomized liquid medicine can be conveniently conveyed to the inner part of the nasal cavity through the infusion tube, the medicine can be applied to the inner part of the nasal cavity, and the nursing effect on the nasal part is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention (including the state of the connection band);

FIG. 2 is a schematic view of the overall structure of the present invention (in a state where the connection tape is not included);

FIG. 3 is a schematic view of the structure of the nose cap of the present invention;

FIG. 4 is an exploded view of the filter assembly of the present invention;

FIG. 5 is a schematic view of a connecting band according to the present invention;

FIG. 6 is a schematic view of the connection between the connection block and the fixing block according to the present invention;

FIG. 7 is a schematic structural view of a nasal insert of the present invention;

FIG. 8 is a schematic view of the construction of the adjusting coil of the present invention;

fig. 9 is a schematic structural view of the shrinkable sleeve of the present invention.

Description of reference numerals:

1. a nose cover; 11. a cushion pad; 12. an arc-shaped slot; 13. an arc-shaped pad; 14. air holes are formed; 2. breathable gauze; 3. a filter assembly; 31. an outer frame; 32. an air filter; 33. a cover plate; 34. a vent hole; 4. a non-slip mat; 41. an anti-slip bump; 5. a fixed block; 51. a slot; 6. a connecting belt; 61. a movable belt; 611. a movable ring; 62. connecting blocks; 621. a clamping block; 7. a nasal cavity lining; 71. a connecting pipe; 72. a wedge-shaped piece; 8. adjusting a solenoid; 81. an extrusion head; 82. a hexagonal block; 9. a shrink sleeve; 91. an inner liner ring; 92. a limiting block; 93. an annular groove; 94. a movable sleeve; 95. and (4) fixing the ring.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

Example 1

Referring to fig. 1-3, a preferred embodiment of the present invention comprises a nose sleeve 1, the bottom of the nose sleeve 1 is an open structure, a breathable gauze 2 is arranged inside the nose sleeve 1, a filtering component 3 is arranged on each of the left and right sides of the nose sleeve 1 near the top end, a fixing block 5 is arranged on each of the left and right sides and the rear side of the nose sleeve 1, a connecting band 6 is arranged on each of the left and right sides of the nose sleeve 1 near the fixing block 5, and a nasal cavity lining 7 is arranged inside the nose sleeve 1 near the front edge and is symmetrical to each other.

In the above scheme, the inside of nose cover 1 and be close to bottom edge and be equipped with blotter 11, blotter 11 is aligned with the bottom edge of nose cover 1, and bond fixedly with the inner wall of nose cover 1, just be close to bottom department and be provided with arc 12 on the lateral wall of nose cover 1 rear side, make things convenient for the top and the bridge of the nose contact of nose cover 1 through arc 12, the inboard of arc 12 is equipped with arc pad 13, arc pad 13 and nose cover 1 bonding cooperation, can cushion between nose cover 1 and nose through blotter 11 and arc pad 13, improve the comfort level of nose, avoid nose cover 1 to cause the discomfort to the nose, thereby conveniently wrap.

Furthermore, a plurality of air holes 14 which are uniformly distributed are formed in the side walls of the left side and the right side of the nose sleeve 1, so that the two sides of the nose can ventilate conveniently through the air holes 14, and the problem that the nursing effect is influenced due to the lower ventilation property of the nose is avoided.

In addition, the left and right sides of nose cover 1 just is close to bottom edge and all is equipped with slipmat 4, slipmat 4 and nose cover 1 integrated into one piece, and the bottom of slipmat 4 is provided with a plurality of evenly distributed's skid proof block 41, can strengthen the anti-skidding effect of slipmat 4 through skid proof block 41 to prevent that nose cover 1 from droing.

Example 2

Referring to fig. 4, in a preferred embodiment, the filtering assembly 3 includes an outer frame 31, the outer frame 31 is located outside the air holes 14, and is integrated with the side wall of the nose sleeve 1, the inner side of the outer frame 31 is provided with an air filter sheet 32, the air filter sheet 32 is matched with the outer frame 31 in a clamping manner, the outer side of the outer frame 31 is provided with a cover plate 33, the cover plate 33 is matched with the outer frame 31 in a clamping manner, the cover plate 33 is provided with a plurality of uniformly distributed air holes 34, the air on the two sides of the nose sleeve 1 is convenient to circulate through the air holes 34, meanwhile, the air filter sheet 32 can filter the air on the two sides of the nose sleeve 1, and the wounds on the two sides of the nose are prevented from being contaminated by dust and affecting recovery.

Example 3

Referring to fig. 5-6, in a preferred embodiment, a slot 51 is formed in the fixed block 5, a movable band 61 is disposed on the connecting band 6 and near the center, a movable ring 611 is disposed on the movable band 61 and near one side of the connecting band 6, the movable ring 611 is slidably connected with the connecting band 6, so that the position of the movable band 61 can be conveniently adjusted, connecting blocks 62 are disposed on the left and right sides of the connecting band 6 and on one sides of the movable band 61 near the nose sleeve 1, clamping blocks 621 are disposed on the left and right sides of the connecting blocks 62, and the connecting blocks 62 are fixedly clamped with the slot 51 through the clamping blocks 621, so that the connecting band 6 and the movable band 61 can fix the nose sleeve 1, and the nose can be conveniently wrapped.

Example 4

Referring to fig. 7-8, in a preferred embodiment, the nasal cavity lining 7 is composed of a plurality of linings distributed in an annular array, a connecting pipe 71 is arranged on the nasal cavity lining 7 and near the edge of the front side, the connecting pipe 71 is integrally formed with the nasal cavity lining 7, the connecting pipe 71 penetrates through the side wall of the front side of the nasal cannula 1 and is welded and fixed with the side wall of the nasal cannula 1, wedge-shaped pieces 72 distributed in an annular array are arranged on the inner side of the nasal cavity lining 7, the wedge-shaped pieces 72 are integrally formed with the nasal cavity lining 7, and the inner part of the nasal cavity can be supported through the nasal cavity lining 7, so that the nasal cavity can be wrapped conveniently, and the problem that too much gauze in the nasal cavity causes poor air permeability is avoided.

In a preferred embodiment, the inner side of the nasal cavity lining 7 and the part close to the front end are provided with an adjusting solenoid 8, the adjusting solenoid 8 is of a hollow structure with openings at two ends, the outer circumferential wall of the adjusting solenoid 8 is provided with a thread section, the adjusting solenoid 8 penetrates through the connecting pipe 71 and is in threaded connection with the connecting pipe 71, one side of the adjusting solenoid 8, which is close to the nasal cavity lining 7, is provided with an extrusion head 81, one side of the adjusting solenoid 8, which is far away from the nasal cavity lining 7, is provided with a hexagonal block 82, the adjusting solenoid 8, the extrusion head 81 and the hexagonal block 82 are integrally formed, the adjusting solenoid 8 is rotated to enable the extrusion head 81 to extrude the wedge-shaped sheet 72, the nasal cavity lining 7 is expanded outwards to be supported and fixed in the nasal cavity, and the inside of the nasal cavity is wrapped conveniently.

Example 5

Referring to fig. 9, in a preferred embodiment, a shrink sleeve 9 is arranged at the front side of the adjusting screw tube 8, the shrink sleeve 9 and the adjusting screw tube 8 are integrally formed, and the shrink sleeve 9 can be externally connected with a transfusion tube, so that atomized liquid medicine can be conveyed into the nasal cavity, the medicine can be conveniently supplied into the nasal cavity, and the nursing effect on the nasal cavity is improved.

Further, an inner lining ring 91 is arranged inside the shrink sleeve 9 and close to the hexagonal block 82, the inner lining ring 91 and the shrink sleeve 9 are integrally formed, and the inner lining ring 91 can be supported on the inner side of the externally connected infusion tube, so that the externally connected infusion tube can be conveniently fixed.

In the above scheme, shrink 9 is last and be provided with stopper 92 near front side edge, stopper 92 can prevent that shrink 9 from droing, set up a plurality of evenly distributed's ring channel 93 on shrink 9's the circumference outer wall, shrink 9's the outside is equipped with movable sleeve 94, movable sleeve 94 cover is established in shrink 9's the outside, and with shrink 9 sliding connection, be provided with the solid fixed ring 95 that is parallel to each other on the circumference inner wall of movable sleeve 94, each solid fixed ring 95 is corresponding with ring channel 93 respectively, gu fixed ring 95 cooperates with ring channel 93 joint, thereby can fix movable sleeve 94 in shrink 9's the outside, make movable sleeve 94 extrude shrink 9, make things convenient for shrink 9 to fix external transfer line.

The ventilating nose wrap device for nose care of the present invention, when in use:

when the nose is bandaged, firstly, the connecting block 62 is moved, the clamping block 621 is in clamping fit with the slot 51, the connecting belt 6 is fixedly connected with the nasal sleeve 1, then, the outer side of the nose is bandaged by using the breathable gauze 2, then, the gauze is slightly wound on the outer side of the nasal cavity lining 7, the nasal sleeve 1 is moved, the nasal cavity lining 7 is driven by the nasal sleeve 1 to move, the nasal cavity lining 7 is placed in the nasal cavity, then, the nasal sleeve 1 is fixed on the outer side of the nose through the connecting belt 6, finally, the adjusting screw tube 8 is rotated, the extruding head 81 is enabled to extrude the wedge-shaped piece 72, the nasal cavity lining 7 is enabled to expand outwards, the nasal cavity lining 7 is enabled to support the inner part of the nasal cavity, the nasal cavity gauze on the nasal cavity lining 7 is enabled to be attached, and therefore the bandaging of the nose is completed;

when medicine is loaded to the nose, at first, put into the inboard of shrink sleeve 9 with external transfer line, continuously remove the transfer line, make the transfer line cup joint on interior grommet 91, later, to one side pulling movable sleeve 94 of stopper 92, make solid fixed ring 95 and ring channel 93 joint cooperation, make solid fixed ring 95 extrude shrink sleeve 9, make shrink sleeve 9 fix the transfer line, carry the inside of nasal cavity with the atomizing liquid medicine through the transfer line at last.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims

1. A ventilated nasal wrap device for nasal care, comprising a nasal sleeve (1), characterized in that: the nose cover comprises a nose cover body (1), wherein the bottom of the nose cover body (1) is of an open structure, breathable gauze (2) is arranged inside the nose cover body (1), filter components (3) are arranged on the left side and the right side of the nose cover body (1) and close to the top end of the nose cover body, fixing blocks (5) are arranged on the left side and the right side and the rear side of the nose cover body (1), connecting belts (6) are arranged on the left side and the right side of the nose cover body (1) and close to the fixing blocks (5), and mutually symmetrical nasal cavity linings (7) are arranged inside the nose cover body (1) and close to the front side edge of the nose cover body;

the nasal cavity lining (7) is composed of a plurality of linings distributed in an annular array, a connecting pipe (71) is arranged on the nasal cavity lining (7) and close to the edge of the front side, the connecting pipe (71) and the nasal cavity lining (7) are integrally formed, the connecting pipe (71) penetrates through the side wall of the front side of the nasal sleeve (1) and is fixedly welded with the side wall of the nasal sleeve (1), wedge-shaped pieces (72) distributed in an annular array are arranged on the inner side of the nasal cavity lining (7), and the wedge-shaped pieces (72) and the nasal cavity lining (7) are integrally formed;

an adjusting screw tube (8) is arranged on the inner side of the nasal cavity lining (7) and close to the front end, the adjusting screw tube (8) is of a hollow structure with openings at two ends, a threaded section is arranged on the outer wall of the circumference of the adjusting screw tube (8), the adjusting screw tube (8) penetrates through a connecting tube (71) and is in threaded connection with the connecting tube (71), an extrusion head (81) is arranged on one side of the adjusting screw tube (8) close to the nasal cavity lining (7), a hexagonal block (82) is arranged on one side of the adjusting screw tube (8) far away from the nasal cavity lining (7), and the adjusting screw tube (8), the extrusion head (81) and the hexagonal block (82) are integrally formed;

a contraction sleeve (9) is arranged on the front side of the adjusting solenoid (8), the contraction sleeve (9) and the adjusting solenoid (8) are integrally formed, an inner lining ring (91) is arranged inside the contraction sleeve (9) and close to the hexagonal block (82), the inner lining ring (91) and the contraction sleeve (9) are integrally formed, a limit block (92) is arranged on the contraction sleeve (9) and close to the edge of the front side, and a plurality of uniformly distributed annular grooves (93) are formed in the circumferential outer wall of the contraction sleeve (9);

the outside of shrink sleeve (9) is equipped with movable sleeve (94), movable sleeve (94) cover is established in the outside of shrink sleeve (9), and with shrink sleeve (9) sliding connection, be provided with solid fixed ring (95) that are parallel to each other on the circumference inner wall of movable sleeve (94), each gu fixed ring (95) are corresponding with ring channel (93) respectively, gu fixed ring (95) and ring channel (93) joint cooperation.

2. A vented nasal dressing for nasal care as recited in claim 1 wherein: the utility model discloses a nose cover, including nose cover (1), bottom edge, blotter (11), bottom edge is just being close to in the inside of nose cover (1) is equipped with blotter (11), blotter (11) are aligned with the bottom edge of nose cover (1), and bond fixedly with the inner wall of nose cover (1), just be close to bottom department on the lateral wall of nose cover (1) rear side and be provided with arc wall (12), the inboard of arc wall (12) is equipped with arc pad (13), arc pad (13) and nose cover (1) bonding cooperation, a plurality of evenly distributed's bleeder vent (14) have all been seted up on the lateral wall of the nose cover (1) left and right sides.

3. A vented nasal dressing for nasal care as recited in claim 1 wherein: filter component (3) include frame (31), frame (31) are located the outside of bleeder vent (14), and with the lateral wall integrated into one piece of nose cover (1), the inboard of frame (31) is equipped with air filter (32), air filter (32) and frame (31) joint cooperation, the outside of frame (31) is equipped with apron (33), apron (33) and frame (31) joint cooperation, a plurality of evenly distributed's air vent (34) have been seted up on apron (33).

4. A vented nasal dressing for nasal care as recited in claim 1 wherein: the nose cover is characterized in that anti-slip pads (4) are arranged on the left side and the right side of the nose cover (1) and close to the edge of the bottom, the anti-slip pads (4) and the nose cover (1) are integrally formed, and a plurality of anti-slip lugs (41) are uniformly distributed at the bottom of the anti-slip pads (4).

5. A vented nasal dressing for nasal care as recited in claim 1 wherein: slot (51) have been seted up on fixed block (5), just be close to center department on connecting band (6) and be equipped with movable area (61), the activity is taken (61) and is gone up and be provided with movable circle (611) near one side of connecting band (6), movable circle (611) and connecting band (6) sliding connection, the left and right sides of connecting band (6) the activity is taken (61) and is close to one side of nose cover (1) and all is provided with connecting block (62), the left and right sides of connecting block (62) is provided with fixture block (621), it is fixed with slot (51) joint through fixture block (621) in connecting block (62).