CN108404271B

CN108404271B - Slide rail type ventilation mask

Info

Publication number: CN108404271B
Application number: CN201810169627.8A
Authority: CN
Inventors: 耿武军; 唐红丽; 洪万东; 郏丹赟; 唐晶晶
Original assignee: First Affiliated Hospital of Wenzhou Medical University
Current assignee: Wenzhou Celecare Medical Devices Co ltd
Priority date: 2018-02-27
Filing date: 2018-02-27
Publication date: 2020-09-04
Anticipated expiration: 2038-02-27
Also published as: CN108404271A

Abstract

The invention discloses a slide rail type ventilation mask, wherein a left mask body and a right mask body are combined to form a complete mask, and a left air bag and a right air bag are combined to form an annular air bag; the fitting surface department of controlling the cover body sets up oxygen pipe hole and sliding hole, oxygen pipe hole and sliding hole divide into two parts when controlling the cover body separation, can slide in the sliding hole set up two sliders, two slider detachable concatenations form a socket, adjust the position of socket when two sliders slide along the length direction of sliding hole, slider lateral wall and sliding hole inner wall connection elasticity seal the membrane and cover the sliding hole, the socket divide into two parts when two sliders separate, control the cover body and install as an organic wholely through a locking structure when the phase combination. The position of the socket is adjusted so that a doctor can conveniently adjust the socket to a proper position to smoothly and quickly insert the fiberbronchoscope into the nostril of the patient; after the fiber bronchoscope is positioned, the left cover body and the right cover body are divided into two parts, so that the peripheral space of the oral cavity of a patient can be opened, a tracheal catheter can be placed conveniently, the operation time is shortened, and the efficiency is improved.

Description

Slide rail type ventilation mask

Technical Field

The invention relates to the field of medical masks, in particular to a sliding rail type ventilation mask convenient to disassemble.

Background

In the prior art, a commonly used medical trachea cannula oxygen inhalation mask comprises an oxygen interface, wherein the oxygen interface is positioned in the middle of the mask, an air cushion is arranged at the bottom edge of the mask, and the air cushion is provided with an inflation valve. In actual clinical anesthesia work, for patients with mandibular fracture and difficult mouth opening, tracheal intubation guided by a nasal fiberoptic bronchoscope is needed under the condition that the patients are awake, in order to improve the tolerance of the patients, analgesic and sedative drugs are needed, which may cause respiratory depression of the patients and cause oxygen supply interruption.

The applicant has previously reported that patent number is ZL201420281131.7, the name is the special face guard of trachea cannula's of supplementary trachea cannula's of fibre bronchoscope china utility model patent, a face guard structure is disclosed, it sets up fixed part and opening portion, the grafting oxygen hose of oxygen takeover on the fixed part carries out the oxygen suppliment, the fixed part supplies fibre bronchoscope to pass through the socket with opening portion cooperation department's socket and inserts the nasal cavity, guarantee that the patient carries out the operation of fibre bronchoscope intubate under the condition of face guard oxygen suppliment, and after the fibre bronchoscope guide was accomplished, open opening portion, carry out trachea cannula operation. But there are certain drawbacks in clinical use: firstly, the socket position is fixed, the positions of nostrils of patients are different due to the difference of the shapes of faces, so that a doctor cannot smoothly complete intubation, and normal oxygen supply to the patients can be influenced by moving the mask or opening the opening part to perform the operation of the fiberbronchoscope intubation; secondly, accomplish the work back that the fiberbronchoscope inserted the nasal cavity through the socket, and need not continue to last the oxygen suppliment after, the opening space of opening is less, is unfavorable for the doctor to carry out the trachea cannula operation to the oral cavity, and the face guard is also unable to be lifted off by oxygen hose and fiberbronchoscope restriction, has influenced the operation and has gone on more efficiently.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a slide rail type ventilation mask which can move the position of a socket, is detached after the fiberbronchoscope is intubated without oxygen supply and is more convenient for subsequent operations.

The invention adopts the following technical scheme: the sliding rail type ventilation mask comprises a left mask body, a right mask body, a left air bag arranged on the left mask body and a right air bag arranged on the right mask body, wherein the left mask body and the right mask body are combined to form a complete mask, and the left air bag and the right air bag are combined to form an annular air bag; the fitting surface department of the left side cover body and the right side cover body sets up oxygen pipe hole and sliding hole, oxygen pipe hole and sliding hole divide into two parts when the left side cover body and the right side cover body separate, can slide in the sliding hole set up two sliders, two slider detachable concatenations form a socket, the position of adjusting the socket when two sliders slide along the length direction of sliding hole, slider lateral wall and sliding hole inner wall connection elasticity seal membrane cover the sliding hole, the socket divide into two parts when two sliders separate, the left side cover body is as an organic whole through a locking structure installation when the right side cover body phase combination.

As an improvement, the locking structure is two sets of, sets up respectively in the upper and lower both sides of the left cover body and the right cover body fitting surface, and the locking structure includes bolt, round pin frame and locking screw, and the bolt can set up in the pinhole of round pin frame that slides, and locking screw sets up in the both ends of bolt, all is provided with the screw on the left cover body and the right cover body, when the bolt slides to the screw that both ends locking screw correspond the left cover body and the right cover body, carries out the locking of the left cover body and the right cover body with the locking screw in screw.

As an improvement, the pin frame comprises a first sub frame and a second sub frame, the first sub frame and the second sub frame are respectively arranged on the left cover body and the right cover body, the bolt is located at the first sub frame, and when the left cover body and the right cover body are combined, the bolt penetrates through a pin hole of the second sub frame and then the locking screw corresponds to the position of the screw hole.

As an improvement, a limit block is arranged on the side edge of the bolt; when the left cover body and the right cover body are combined, the movable position of the limiting block is limited by the first sub-frame and the second sub-frame; when the limiting block abuts against the second sub-frame, the locking screw corresponds to the screw hole.

As an improvement, still including two sets of check valves, two sets of check valves set up respectively on the left cover body and the right cover body and connect left gasbag and right gasbag, the check valve includes cylindricality outrigger and valve body, the cylindricality outrigger sets up on the left cover body or the right cover body and adjacent the setting with the bolt, the cylindricality outrigger has the mounting hole, this mounting hole bottom communicates to left gasbag or right gasbag, the mounting hole pore wall has the step, but the valve body through a spring axial displacement set up in the mounting hole and support in step department closed mounting hole by the spring, communicate the mounting hole when following outside inside top-open valve body and compression spring.

As an improvement, a transverse through hole is formed in the side wall of the cylindrical outer frame, a supporting block extends upwards from the valve body, the position of the supporting block corresponds to the position of the transverse through hole, and the limiting block can enter the transverse through hole to push the supporting block downwards when moving towards the first sub-frame.

As an improvement, the left air bag and the right air bag are provided with limiting structures, the limiting structures comprise protruding pieces arranged on the left air bag and grooves arranged on the right air bag, the grooves are formed by surrounding of extending bodies on the upper side and the lower side, when the left air bag and the right air bag are combined and inflated, the extending bodies on the upper side and the lower side are expanded to clamp the protruding pieces located in the grooves, and when the left air bag and the right air bag are deflated, the limiting of the extending bodies on the protruding pieces is released.

As an improvement, the side wall of the sliding hole is provided with a sliding groove with an isosceles trapezoid cross section, the sliding blocks are provided with sliding rails matched with the sliding grooves, and the opposite surfaces of the two sliding blocks are provided with matched insertion blocks and slot structures.

As an improvement, the edge of the elastic sealing film is provided with an elastic ball body, and the elastic ball body is deformed and clamped into the sliding groove for limiting.

As an improvement, a rubber layer is arranged at the matching surface of the left cover body and the right cover body, and the rubber layers on the two sides form a matched tooth-shaped structure.

The invention has the beneficial effects that: the ventilation mask solves the problems of respiratory depression and oxygen supply interruption caused by the use of sedative analgesic drugs in the positioning stage of the patient fiberbronchoscope, the left mask body and the right mask body are combined into an integrated mask, the left air bag and the right air bag are well adapted to the face of a person, and the oxygen pipe extends into the mask from the oxygen pipe hole and can supply oxygen to the patient; socket accessible soft lid seals, and can follow the socket when opening and carry out the inserting of fiberbronchoscope, and the socket position can be adjusted in the slider at socket place gliding from top to bottom in the hole that slides, and the doctor of being convenient for adjusts suitable position and inserts patient's nostril smoothly quick with fiberbronchoscope, improves operation efficiency, shortens operation time. The left cover body and the right cover body are installed into a whole through the locking structure, after the fiber bronchoscope is positioned, the locking structure can be detached, the left cover body and the right cover body are divided into two parts, the sliding block is also divided into two parts, the set fiber bronchoscope does not influence the overall separation, the space around the oral cavity of a patient is opened under the condition that oxygen supply does not need to be continued, the tracheal catheter is more convenient to place, the operation time is shortened, and the overall efficiency is improved.

Drawings

Fig. 1 is a schematic front view of the present invention.

Fig. 2 is a front view of the mask of the present invention with the two portions separated.

Fig. 3 is a schematic side view of the present invention.

Fig. 4 is a longitudinal sectional structural view of the locking structure of the present invention.

Fig. 5 is a schematic view of the locking structure and the longitudinal cross-sectional structure at the check valve of the present invention.

Fig. 6 is a schematic view of the longitudinal cross-sectional structure at the slider of the present invention.

Fig. 7 is a schematic longitudinal sectional structure of the sealing film of the present invention.

Detailed Description

The following detailed description of specific embodiments of the invention refers to the accompanying drawings.

Referring to fig. 1-7, a particular embodiment of the slide-rail ventilation mask of the present invention is shown. The mask comprises a left mask body 1, a right mask body 2, a left air bag 3 arranged on the left mask body 1 and a right air bag 4 arranged on the right mask body 2, wherein the left mask body 1 and the right mask body 2 are combined to form a complete mask, and the left air bag 3 and the right air bag 4 are combined to form an annular air bag; the fitting surface department of the left cover body 1 and the right cover body 2 sets up oxygen pipe hole 5 and slide opening 6, oxygen pipe hole 5 and slide opening 6 divide into two parts when the left cover body 1 separates with the right cover body 2, can slide in the slide opening 6 set up two slider 7, the concatenation of two slider 7 detachable forms a socket 8, two slider 7 adjust the position of socket 8 when sliding along the length direction of

slide opening

6, 6 inner wall connection elasticity sealing film 9 of slider 7 lateral wall and slide opening cover 6 with slide opening 6, socket 8 divide into two parts when two slider 7 separate, the left cover body 1 is as an organic whole through a locking structure 0 installation when the right cover body 2 phase combination.

When the oxygen tube sliding cover is used, the left cover body 1 and the right cover body 2 are installed into a whole through the locking structure 0, the section of the oxygen tube hole 5 is a whole circle, preferably, the oxygen tube hole 5 is symmetrically arranged on the left cover body 1 and the right cover body 2 to be a semicircular structure, the section of the sliding hole 6 is a cuboid, the length direction of the sliding hole is along the length direction of the left cover body 1 and the right cover body 2, preferably, the sliding hole 6 is symmetrically arranged on the left cover body 1 and the right cover body 2, the long sides of the sliding hole 6 are respectively arranged with one sliding block 7 in a sliding mode, the sliding blocks 7 on the two sides are spliced to form a socket 8 with a circular section, preferably, the socket 8 is symmetrically arranged on the two sliding blocks 7, and the socket 8 can be plugged through a soft cover. The other parts except the sliding block 7 at the sliding hole 6 are covered with the elastic sealing film 9, the periphery of the elastic sealing film 9 is limited on the sliding block 7 and the wall of the sliding hole 6, and the elastic sealing film 9 can be deformed by being pulled when the sliding block 7 slides, so that the inside and the outside of the sliding hole 6 are kept isolated. Patient is after taking the face guard, aerify through gasbag 3 and right gasbag 4 left and make face guard laminating adaptation patient face, oxygen hose hole 5 departments insert the oxygen hose, the doctor can adjust the position of socket 8 through sliding from top to bottom to slider 7, can adjust more convenient position and insert the fiberbronchoscope, make the nostril of inserting patient that the fiberbronchoscope can be comparatively smooth, improve operation efficiency, shorten operation time, avoid original socket rigidity unable patient's that adapts to the nose position difference puzzlement. After the fiber bronchoscope is positioned, the locking structure 0 can be detached, the left cover body 1 and the right cover body 2 are divided into two parts, the sliding block 7 is also divided into two parts, the arranged fiber bronchoscope does not influence the overall separation, the peripheral space of the oral cavity of a patient is opened under the condition that oxygen supply does not need to be continued, a tracheal catheter is more convenient to place, the operation time is shortened, and the overall efficiency is improved.

As an improved specific implementation mode, two sets of locking structures 0 are provided, which are respectively arranged on the upper and lower sides of the matching surfaces of the left cover body 1 and the right cover body 2, each locking structure 0 comprises a bolt 01, a pin frame 02 and a locking screw 03, the bolts 01 can be arranged in pin holes 04 of the pin frame 02 in a sliding manner, the locking screws 03 are arranged at two ends of the bolts 01, both the left cover body 1 and the right cover body 2 are provided with screw holes 05, and when the bolts 01 slide to the screw holes 05 on the two ends of the locking screws 03 corresponding to the left cover body 1 and the right cover body 2, the locking screws 03 are screwed into the screw holes 05 to lock the left cover body 1 and the right cover.

As shown in fig. 1, 2 and 3, the upper and lower locking structures 0 can meet the requirement of positioning the left cover body 1 and the right cover body 2, after the left cover body 1 and the right cover body 2 are folded, the bolt 01 slides to two locking screws 03 in the pin hole 04 of the pin frame 02 to correspond to the screw holes 05 on the left cover body 1 and the right cover body 2, and a doctor rotates the locking screws 03 to the screw holes 05 to complete the positioning of the left cover body 1 and the right cover body 2; when the locking screw 03 is detached, the locking screw is operated reversely, the operation is simple, and the locking is firm. For general block structure, the stability of closing soon is more favorable to guaranteeing, and locking screw 03 altogether appears becoming flexible everywhere, and can not make left cover body 1 and right cover body 2 produce the separation, has fine locking effect.

As a modified embodiment, the pin frame 02 includes a first sub frame 021 and a second sub frame 022, the first sub frame 021 and the second sub frame 022 are respectively disposed on the left cover 1 and the right cover 2, the pin 01 is located at the first sub frame 021, and when the left cover 1 and the right cover 2 are combined, the pin 01 passes through the pin hole 04 of the second sub frame 022 and then the locking screw 03 is positioned corresponding to the screw hole 05.

As shown in fig. 1, 2, 3, 4, and 5, the first sub-frame 021 is used for installing the bolt 01 well and making it slide along its length direction, and the bolt 01 is limited by the second sub-frame 022 after sliding to the second sub-frame 022, so as to realize the good positioning of the left cover body 1 and the right cover body 2. As shown in fig. 4 and 5, a space is further provided above the pin hole 04 of the second sub-frame 022 for the locking screw 03 to pass through smoothly, and the locking screw 03 can reach the position corresponding to the screw hole 05 after passing through the second sub-frame 022, thereby completing the locking. The pin holes 04 at the first sub-frame 021 as shown in fig. 4 do not allow the locking screw 03 to pass through, so that after the locking screw 03 is installed on the latch 01, the locking screw 03 can be limited on the first sub-frame 021 and cannot fall out from both ends, and the structure is reasonable and the use is more convenient.

As an improved specific implementation manner, a limit block 011 is arranged on the side edge of the bolt 01; when the left cover body 1 and the right cover body 2 are combined, the movable position of the limiting block 011 is limited by the first sub frame 021 and the second sub frame 022; when the limiting block 011 abuts against the second sub-frame 022, the locking screw 03 corresponds to the screw hole 05.

As shown in fig. 1, 2 and 4, the limiting block 011 has firstly realized the effect of a counterpoint, and the structure is designed to slide to the time of propping against with the second subframe 022 at the limiting block 011, and the position of the locking screw 03 corresponds to the position of the screw hole 05, so that the doctor and the nurse can quickly debug before the operation to complete the counterpoint of the locking screw 03 and the screw hole 05 on the left cover body 1 and the right cover body 2, and then the locking screw 03 is screwed to complete the integrated installation of the whole mask. On the other hand, after the limiting block 011 is arranged, the limiting block replaces the function of a locking screw 03 to limit when abutting against the first sub-frame 021, so that the moving distance of the bolt 01 on the first sub-frame 021 can be further limited, and the operation difficulty and the moving space between smaller parts are reduced.

As an improved specific embodiment, the air bag type air bag valve further comprises two sets of check valves 10, the two sets of check valves 10 are respectively arranged on the left cover body 1 and the right cover body 2 and are connected with the left air bag 3 and the right air bag 4, each check valve 10 comprises a cylindrical outer frame 101 and a valve body 102, the cylindrical outer frame 101 is arranged on the left cover body 1 or the right cover body 2 and is arranged adjacent to the bolt 01, the cylindrical outer frame 101 is provided with a mounting hole 103, the bottom of the mounting hole 103 is communicated with the left air bag 3 or the right air bag 4, the hole wall of the mounting hole 103 is provided with a step 104, the valve body 102 is axially movably arranged in the mounting hole 103 through a spring 105 and is abutted against the step 104 to close the mounting hole 103, and the mounting hole 103 is communicated when the valve body 102 is jacked from the.

As shown in fig. 1 and 5, when in use, the inflator is sleeved on the cylindrical outer frame 101 from the outside, gas enters the mounting hole 103 and pushes the valve body 102 open during inflation, the gas can enter the left air bag 3 or the right air bag 4 along the mounting hole 103 below the step 104 for inflation, and the compressed spring 105 is reset after the pressurization is stopped, so that the valve body 102 is pushed back to the step 104 to close the mounting hole 103. After use, deflation may be accomplished by a tool that pushes the valve body 102 inward from the outside.

As an improved embodiment, a transverse through hole 106 is formed on the sidewall of the cylindrical outer frame 101, a resisting block 107 is upwardly extended from the valve body 102, the position of the resisting block 107 corresponds to the transverse through hole 106, and the limiting block 011 can enter the transverse through hole 106 to push the resisting block 107 downwardly when moving towards the first sub-frame 021.

As shown in fig. 1, 2 and 5, in order to facilitate the detachment of the mask, a structure is provided for deflating the left airbag 3 and the right airbag 4 simultaneously when the left mask body 1 and the right mask body 2 are unlocked, that is, the limiting block 011 is used as a structure for pushing the valve body 102 open, the transverse through hole 106 on the cylindrical outer frame 101 can be filled with the limiting block 011, the limiting block 011 can press the abutting block 107 down after entering the transverse through hole 106 and reaching the abutting block 107, so that the valve body 102 is pressed down, the gas of the left airbag 3 and the right airbag 4 can be released, the linkage mode of the structure enables the gas to be released synchronously, the detachment of the left mask body 1 and the right mask body 2 is facilitated, the gas does not need to be released in advance during the next assembly, and the use efficiency is improved. The contact positions of the limiting block 011 and the resisting block 107 can be set to be round surfaces or arc shapes, so that the extrusion abrasion between the structures is reduced, and the matching is smoother.

As a modified embodiment, the left air bag 3 and the right air bag 4 are provided with a limiting structure 31, the limiting structure 31 comprises a protruding piece 32 arranged on the left air bag 3 and a groove 33 arranged on the right air bag 4, the groove 33 is formed by surrounding of upper and lower extending bodies 34, when the left air bag 3 and the right air bag 4 are combined and inflated, the upper and lower extending bodies 34 are expanded to clamp the protruding piece 32 positioned in the groove 33, and the limiting of the protruding piece 32 by the extending bodies 34 is released when the left air bag 3 and the right air bag 4 are deflated.

As shown in fig. 4, the extension 34 and the right airbag 4 integrated therewith form a "concave" structure, the protruding piece 32 and the left airbag 3 integrated therewith form a "convex" structure, the protruding piece 32 is accommodated in the groove 33, and after the left airbag 3 and the right airbag 4 are inflated, the protruding piece 32 can be clamped, so that a stable matching structure is formed, the boundary between the left airbag 3 and the right airbag 4 is restricted, and is not easy to separate, and the gap between the structures is also closed, thereby ensuring the use effect. The existence of the gap in the groove 33 is only illustrated in the figure, and in the actual use, the groove 33 is filled under the condition that the left air bag 3 and the right air bag 4 are fully inflated, and no gap exists in the whole. Meanwhile, the structure improves the stability of the connection of the two parts of structures on the basis of the locking structure 0, when the locking state of the locking structure 0 is released, the limit block 011 linked with the bolt 01 can press down the abutting block 107 when reaching the abutting block 107 after entering the transverse through hole 106, so that the valve body 102 is pressed down, the gas of the left air bag 3 and the right air bag 4 can be discharged, the linkage mode of the structure enables the gas to be synchronously discharged, the left cover body 1 and the right cover body 2 as well as the left air bag 3 and the right air bag 4 can be synchronously released, and the unlocking of the two aspects can be quickly completed under the condition of positioning the two aspects.

As a modified embodiment, the side wall of the sliding hole 6 is provided with a sliding groove 61 with an isosceles trapezoid cross section, the sliding block 7 is provided with a sliding rail 71 matched with the sliding groove 61, and the opposite surfaces of the two sliding blocks 7 are provided with a matched inserting block 72 and a matched inserting groove 73 structure.

As shown in fig. 6, the sliding groove 61 and the sliding rail 71 are matched with each other, so that the sliding block 7 can slide along the length direction of the sliding hole 6; the isosceles trapezoid sliding groove 61 is internally provided with a long side and externally provided with a short side; the left cover body 1 and the right cover body 2 can be provided with a multi-plate mounting structure at the sliding hole 6, namely, an upper plate and a lower plate are mutually mounted and spliced to form a sliding groove 61, and a sliding block 7 can be mounted or dismounted when being dismounted; the slider 7 can be stable set up in the spout 61, is favorable to two slider 7's counterpoint installation. The insertion block 72 and the insertion slot 73 have the effect of positioning and assembling the two sliding blocks 7, and the two sliding blocks 7 can form an integral complete socket 8 after being aligned, so that the fiber bronchoscope can be conveniently inserted.

As a modified specific embodiment, the edge of the elastic sealing film 9 is provided with an elastic ball 91, and the elastic ball 91 is deformed to be clamped into the sliding groove 61 for limiting.

As shown in fig. 7, due to the isosceles trapezoid structure of the sliding groove 61, the elastic ball 91 is disposed at the edge of the elastic sealing film 9 and is inserted into the sliding groove 61 by deformation, so that when the left cover body 1 and the right cover body 2 are separated, the elastic sealing film 9 and the one side can be separated by the elastic ball 91 coming out of the sliding groove 61. The slider 7 can also be provided with a similar structure or can be directly positioned in a sticking way, so that the slider is convenient to pull away.

As a modified embodiment, the matching surfaces of the left cover body 1 and the right cover body 2 are provided with rubber layers 11, and the rubber layers 11 on the two sides are provided with matched tooth-shaped structures 12.

As shown in fig. 4, the rubber layers 11 on both sides can well close the matching surface gap between the left cover body 1 and the right cover body 2, so as to ensure the sealing effect; the tooth-shaped structure 12 enables the contact surfaces of the rubber layers 11 on the two sides to be in fold line extrusion fitting, the sealing effect is better, and the interaction limit between the structures is better.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. Slide rail formula face guard of ventilating, its characterized in that: the mask comprises a left mask body (1), a right mask body (2), a left air bag (3) arranged on the left mask body (1) and a right air bag (4) arranged on the right mask body (2), wherein the left mask body (1) and the right mask body (2) are combined to form a complete mask, and the left air bag (3) and the right air bag (4) are combined to form an annular air bag; the oxygen pipe hole (5) and the sliding hole (6) are formed in the matching surface of the left cover body (1) and the right cover body (2), the oxygen pipe hole (5) and the sliding hole (6) are divided into two parts when the left cover body (1) and the right cover body (2) are separated, two sliding blocks (7) can be arranged in the sliding hole (6) in a sliding mode, the two sliding blocks (7) are detachably spliced to form a socket (8), the position of the socket (8) is adjusted when the two sliding blocks (7) slide along the length direction of the sliding hole (6), the side wall of each sliding block (7) and the inner wall of the corresponding sliding hole (6) are connected with an elastic sealing film (9) to cover the corresponding sliding hole (6), the socket (8) is divided into two parts when the two sliding blocks (7) are separated, and the left cover body (1) and the right cover body (2) are assembled into a whole through a locking structure (0);

the locking structures (0) are two groups and are respectively arranged on the upper side and the lower side of the matching surface of the left cover body (1) and the right cover body (2), each locking structure (0) comprises a bolt (01), a pin frame (02) and a locking screw (03), the bolts (01) can be arranged in pin holes (04) of the pin frames (02) in a sliding manner, the locking screws (03) are arranged at two ends of each bolt (01), screw holes (05) are respectively arranged on the left cover body (1) and the right cover body (2), and when the bolts (01) slide to the locking screws (03) at the two ends corresponding to the screw holes (05) on the left cover body (1) and the right cover body (2), the locking screws (03) are screwed into the screw holes (05) to lock the left cover body (1) and the right cover body (2);

the pin frame (02) comprises a first sub frame (021) and a second sub frame (022), the first sub frame (021) and the second sub frame (022) are respectively arranged on the left cover body (1) and the right cover body (2), the bolt (01) is positioned at the first sub frame (021), and when the left cover body (1) and the right cover body (2) are combined, the bolt (01) penetrates through a pin hole (04) of the second sub frame (022) and then the locking screw (03) is made to correspond to the position of the screw hole (05);

a limit block (011) is arranged on the side edge of the bolt (01); when the left cover body (1) and the right cover body (2) are combined, the movable position of the limiting block (011) is limited by the first sub-frame (021) and the second sub-frame (022); when the limiting block (011) is abutted against the second subframe (022), the locking screw (03) corresponds to the screw hole (05);

also comprises two groups of one-way valves (10), the two groups of one-way valves (10) are respectively arranged on the left cover body (1) and the right cover body (2) and are connected with the left air bag (3) and the right air bag (4), the check valve (10) comprises a cylindrical outer frame (101) and a valve body (102), the cylindrical outer frame (101) is arranged on the left cover body (1) or the right cover body (2) and is adjacent to the bolt (01), the cylindrical outer frame (101) is provided with a mounting hole (103), the bottom of the mounting hole (103) is communicated with the left air bag (3) or the right air bag (4), the hole wall of the mounting hole (103) is provided with a step (104), the valve body (102) is axially movably arranged in the mounting hole (103) through a spring (105) and the spring (105) presses against the step (104) to close the mounting hole (103), the mounting hole (103) is communicated when the valve body (102) is pushed open from the outside to the inside and the spring (105) is compressed.

2. The slide-track ventilation mask according to claim 1, wherein: the side wall of the cylindrical outer frame (101) is provided with a transverse through hole (106), the valve body (102) extends upwards to be provided with a resisting block (107), the position of the resisting block (107) corresponds to the position of the transverse through hole (106), and the limiting block (011) can enter the transverse through hole (106) to push the resisting block (107) downwards when moving towards the first sub-frame (021).

3. The slide-track ventilation mask according to claim 1 or 2, wherein: the left air bag (3) and the right air bag (4) are provided with limiting structures (31), each limiting structure (31) comprises a protruding piece (32) arranged on the left air bag (3) and a groove (33) arranged on the right air bag (4), each groove (33) is formed by surrounding extending bodies (34) on the upper side and the lower side, when the left air bag (3) and the right air bag (4) are combined and inflated, the extending bodies (34) on the upper side and the lower side are expanded to clamp the protruding pieces (32) located in the grooves (33), and when the left air bag (3) and the right air bag (4) are deflated, the limiting of the extending bodies (34) on the protruding pieces (32) is released.

4. The slide-track ventilation mask according to claim 1 or 2, wherein: the lateral wall of slide sliding hole (6) has that the cross-section is isosceles trapezoid's spout (61), slider (7) have with spout (61) matched with slide rail (71), be provided with on the face that two slider (7) are relative and cooperate inserted block (72) and slot (73) structure.

5. The slide-track ventilation mask according to claim 4, wherein: the edge of elasticity seal membrane (9) is provided with elasticity spheroid (91), spout (61) are carried on spacingly to elasticity spheroid (91) deformation card.

6. The slide-track ventilation mask according to claim 1 or 2, wherein: the rubber layer (11) is arranged on the matching surface of the left cover body (1) and the right cover body (2), and the rubber layers (11) on the two sides form a matched tooth-shaped structure (12).