Oxygen inhalation mask

Abstract

The invention discloses an oxygen inhalation mask, and particularly relates to the technical field of oxygen inhalation masks.The oxygen inhalation mask comprises a mask body, a fixing base is arranged on the outer side of the mask body, a silica gel pad is arranged on the inner side of the mask body, and a fixing ring is arranged at the end, opposite to the mask body, of the fixing base; and a through hole communicated with the mask body is formed in the fixed seat. By arranging the fixing base, the through hole, the fixing ring, the positioning column, the clamping arms and other structures, after the end of an oxygen catheter penetrates through the fixing ring and is inserted into the through hole, under the cooperation of the driving mechanism and the guide assembly, the positioning column can drive the clamping arms to move stably along a straight line, and therefore the multiple sets of clamping arms can be controlled to be folded inwards at the same time to clamp the oxygen catheter; the oxygen catheter can be locked and fixed on the mask body by the aid of the locking device, connection is stable and reliable, and on the contrary, the oxygen catheter can be pulled out by releasing fixation, so that the oxygen catheter and the mask body can be quickly disassembled and assembled, operation is flexible and convenient, and the using effect of the device is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of oxygen absorption masks, in particular to an oxygen absorption mask. Background Art

[0002] An oxygen mask is a sealed device that covers the patient's mouth and nose, and delivers oxygen by connecting to an oxygen source (such as an oxygen cylinder or a ventilator). In layman's terms, an oxygen mask is a medical device that delivers oxygen to the patient's respiratory tract through a mask. It is mainly used to improve the state of hypoxia. Compared with nasal cannula oxygen inhalation, the mask covers the mouth and nose, has a higher oxygen concentration, and can reduce rebreathing. It is mainly suitable for first aid, postoperative recovery, and treatment of chronic hypoxic diseases. It should be used in non-emergency situations according to the doctor's orders.

[0003] At present, when an oxygen mask is used, the mask is mainly connected to an oxygen source through an oxygen supply tube to supply oxygen to the patient. However, in actual use, the oxygen supply tube and the mask are mostly connected in an integrated manner or with a simple plug-in connection. The integrated connection is difficult to disassemble and maintain, while the simple plug-in connection has poor stability and the oxygen supply tube is easy to loosen and detach, which greatly affects the use effect of the device. Therefore, it is urgent to design a flexible and convenient oxygen mask to solve the above problems. Summary of the Invention

[0004] The object of the present invention is to provide an oxygen inhalation mask, which is provided with a fixing seat, a through hole, a fixing ring, a positioning column and a clamping arm. After the end of the oxygen supply tube passes through the fixing ring and is inserted into the through hole, the positioning column can drive the clamping arm to move smoothly along a straight line under the cooperation of the driving mechanism and the guide assembly, so that multiple groups of clamping arms can be controlled to close inward at the same time to clamp the oxygen supply tube, so that the oxygen supply tube can be locked and fixed on the mask body, and the connection is stable and reliable. Conversely, the fixation can be released and the oxygen supply tube can be pulled out, thereby realizing rapid disassembly and assembly between the oxygen supply tube and the mask body, flexible and convenient operation, greatly improving the use effect of the device, and solving the above-mentioned shortcomings in the technology.

[0005] In order to achieve the above object, the present invention provides the following technical solution: an oxygen inhalation mask, comprising:

[0006] The mask body has a fixing seat provided on the outside of the mask body and a silicone pad provided on the inside of the mask body. The fixing seat is provided with a fixing ring at one end opposite to the mask body, and a through hole communicating with the mask body is provided inside the fixing seat. An oxygen supply tube is inserted into the fixing ring, and one end of the oxygen supply tube can be plugged into the through hole.

[0007] An annular cavity is provided in a fixed ring, and positioning holes are provided at the four inner ends of the fixed ring, communicating with the annular cavity. Positioning posts are connected through the interiors of the positioning holes. One end of the positioning posts extending into the annular cavity is connected to a driving mechanism, and the other end of the positioning posts is connected to a clamping arm. A guide assembly is provided between the clamping arm and the fixed ring. The driving mechanism is used to drive the multiple positioning posts to move synchronously.

[0008] A first connecting strap is provided on one side of the mask body, and a second connecting strap is provided on the other side of the mask body, and a tightness adjustment mechanism is provided between the first connecting strap and the second connecting strap.

[0009] Preferably, the driving mechanism includes a threaded rod rotatably installed at four ends inside the annular cavity near one side of the positioning column, one end of the threaded rod is screwed into the positioning column by a thread, and a transmission gear is fixed to the other end of the threaded rod, a movable ring is installed on one side of the interior of the annular cavity, the side wall of the movable ring is provided with a gear ring meshed with multiple transmission gears, a rotating handle is provided at one end of the side wall of the fixed ring, the output end of the rotating handle extends into the annular cavity and is connected to the driving gear, and the driving gear is meshed with the gear ring.

[0010] Preferably, a plurality of sliding posts are provided on a side of the movable ring opposite to the gear ring, and a sliding groove matching the sliding posts is formed on the inner wall of the annular cavity.

[0011] Preferably, the guide assembly includes two guide posts symmetrically fixed at one end of the clamp arm, a plurality of guide holes communicating with the annular cavity are opened on the inner side of the fixing ring, and the guide posts can be plugged into the guide holes.

[0012] Preferably, the tension adjustment mechanism includes a support seat provided at the end of the first connecting belt, a slide is provided inside the support seat, the end of the second connecting belt can be plugged into the slide, a groove is provided on one side of the inner part of the slide, and the side wall of the support seat is connected to the second stud by a threaded engagement, one end of the second stud extends into the groove and is movably connected to the tooth plate through a bearing, and the other end of the second stud is provided with a second fixing handle, and the outer side of the second connecting belt is provided with a tooth groove that meshes with the tooth plate.

[0013] Preferably, exhalation grooves are provided on both sides of the mask body, and filters are provided in the exhalation grooves.

[0014] Preferably, a retaining ring is provided at one end inside the through hole, and the end of the oxygen supply tube abuts against the retaining ring.

[0015] Preferably, a receiving cavity communicating with the through hole is symmetrically provided at the top and bottom ends of the fixing seat, and a stopper is slidably connected to the inside of the receiving cavity. Both ends of the fixing seat are screwed with a first stud through a thread, one end of the first stud extends into the receiving cavity and is movably connected to the stopper through a bearing, and the other end of the first stud is located outside the fixing seat and is provided with a first fixing handle.

[0016] Preferably, a support member is provided at the inner bottom end of the mask body, an oxygen absorption tube is connected to the top end of the support member, and a protective ring is provided at one end of the oxygen absorption tube close to the through hole.

[0017] Preferably, the support member includes a support tube and a support column, the bottom end of the support tube is fixedly connected to the mask body, and the top end of the support tube is provided with a sliding cavity, the bottom end of the support column is slidably connected in the sliding cavity, and the top end of the support column is fixedly connected to the oxygen inhalation tube, and limiting blocks are provided on both sides of the bottom end of the support column, and limiting grooves matching the limiting blocks are opened on both sides of the interior of the sliding cavity.

[0018] In the above technical solution, the technical effects and advantages provided by the present invention are:

[0019] By arranging structures such as a fixing seat, a through hole, a fixing ring, a positioning column and a clamping arm, after the end of the oxygen supply tube passes through the fixing ring and is inserted into the through hole, the positioning column can drive the clamping arm to move smoothly along a straight line under the cooperation of the driving mechanism and the guide assembly, so that multiple groups of clamping arms can be controlled to close inward at the same time to clamp the oxygen supply tube, so that the oxygen supply tube can be locked and fixed on the mask body, and the connection is stable and reliable. Conversely, the fixation can be released and the oxygen supply tube can be pulled out, thereby realizing rapid disassembly and assembly between the oxygen supply tube and the mask body, flexible and convenient operation, and greatly improving the use effect of the device;

[0020] By providing a first connecting strap, a second connecting strap, a support seat, and a tension adjustment mechanism, the second connecting strap can be pushed and pulled to slide on the support seat on the first connecting strap, and the second connecting strap can be locked on the support seat, so that the mask body can be quickly restrained and fixed on the patient's face. At the same time, the tightness of the mask body when worn can also be quickly adjusted according to the use requirements, thereby greatly improving the comfort of the mask body when used;

[0021] By arranging a first fixing handle, a first stud, a stopper and a receiving cavity on the fixing base, the stopper can be driven to slide in the receiving cavity, thereby adjusting the distance between the two stoppers. By adjusting the distance, the blocking area of ​​the through hole can be controlled, and the oxygen flow rate can be adjusted and controlled, further improving the use effect of the mask body.

[0022] By arranging structures such as an oxygen tube, a support column, a support cylinder and a limit block in the mask body, the oxygen tube suspended in the wearable mask body can be inserted into the patient's mouth, even if the patient holds the oxygen tube in his mouth, and the oxygen tube can be flexibly moved up and down, so that the height of the oxygen tube when connected can be flexibly controlled according to needs, so that the oxygen flowing into the wearable mask body can quickly enter the patient's respiratory tract through the oxygen tube, thereby greatly improving the oxygen supply effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0024] Figure 1 This is one of the overall structural diagrams of the present invention;

[0025] Figure 2 This is the second schematic diagram of the overall structure of the present invention;

[0026] Figure 3 This is a longitudinal cross-sectional view of the mask body, the fixing seat and the fixing ring of the present invention;

[0027] Figure 4 This is the second longitudinal cross-sectional view of the mask body, fixing seat and fixing ring of the present invention;

[0028] Figure 5 This is a schematic diagram of the connection structure between the support column and the support cylinder of the present invention;

[0029] Figure 6 This is a schematic diagram of the connection structure between the support base and the second connecting belt of the present invention;

[0030] Figure 7 It is a transverse cross-sectional view of the support seat of the present invention;

[0031] Figure 8 Schematic diagram of the internal structure of the fixing seat of the present invention;

[0032] Figure 9 Schematic diagram of the internal structure of the fixing ring of the present invention;

[0033] Figure 10 A longitudinal sectional view of the fixing ring of the present invention;

[0034] Figure 11 Schematic diagram of the connection structure between the movable ring and the gear ring of the present invention;

[0035] Figure 12 Schematic diagram of the connection structure between the positioning column and the clamping arm of the present invention.

[0036] Description of reference numerals:

[0037] 1. Mask body; 2. Silicone pad; 3. Exhalation groove; 4. Fixing seat; 5. Fixing ring; 6. Oxygen supply tube; 7. Annular cavity; 8. Threaded rod; 9. Positioning column; 10. Transmission gear; 11. Positioning hole; 12. Clamp arm; 13. Guide hole; 14. Guide column; 15. Movable ring; 16. Gear ring; 17. Sliding column; 18. Sliding groove; 19. Drive gear; 20. Turning handle; 21. Through hole; 22. Retaining ring; 23. , storage cavity; 24, first stud; 25, first fixing handle; 26, stopper; 27, first connecting belt; 28, second connecting belt; 29, support seat; 30, slide; 31, groove; 32, second stud; 33, second fixing handle; 34, tooth plate; 35, tooth groove; 36, support tube; 37, support column; 38, oxygen tube; 39, protective ring; 40, sliding cavity; 41, limit block; 42, limit groove. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0039] The present invention provides Figures 1-12 An oxygen mask is shown, comprising:

[0040] The mask body 1 has a fixing seat 4 on the outside of the mask body 1 and a silicone pad 2 on the inside of the mask body 1. A fixing ring 5 is provided at one end of the fixing seat 4 relative to the mask body 1, and a through hole 21 communicating with the mask body 1 is opened inside the fixing seat 4. An oxygen supply tube 6 is inserted into the fixing ring 5, and one end of the oxygen supply tube 6 can be plugged into the through hole 21.

[0041] Both sides of the mask body 1 are provided with an exhalation groove 3, and a filter is provided in the exhalation groove 3. Based on this, the carbon dioxide exhaled by the patient can be discharged outside the mask body 1 through the exhalation groove 3 and the filter.

[0042] The annular cavity 7 is provided in the fixing ring 5, and the four inner ends of the fixing ring 5 are provided with positioning holes 11 communicating with the annular cavity 7. The interior of the positioning hole 11 is penetrated and connected with a positioning column 9. One end of the positioning column 9 extending into the interior of the annular cavity 7 is connected to a driving mechanism, and the other end of the positioning column 9 is connected to a clamping arm 12. A guide assembly is provided between the clamping arm 12 and the fixing ring 5. The driving mechanism is used to drive multiple positioning columns 9 to move synchronously;

[0043] Specific reference Figure 9 、 Figure 10 、 Figure 11 and Figure 12As shown, the driving mechanism includes a threaded rod 8 rotatably mounted at four ends inside the annular cavity 7 near one side of the positioning column 9, one end of the threaded rod 8 is screwed together with the positioning column 9 by a thread, and a transmission gear 10 is fixed to the other end of the threaded rod 8, a movable ring 15 is installed on one side of the inside of the annular cavity 7, and a gear ring 16 meshing with multiple transmission gears 10 is provided on the side wall of the movable ring 15, and a rotating handle 20 is provided at one end of the side wall of the fixed ring 5, and the output end of the rotating handle 20 extends into the annular cavity 7 and is connected to a driving gear 19, and the driving gear 19 is meshed with the gear ring 16. Based on this, by twisting the turning handle 20, the turning handle 20 can drive the gear ring 16 to rotate through the driving gear 19, so that the gear ring 16 drives the movable ring 15 to rotate, and then the movable ring 15 can drive multiple transmission gears 10 to rotate synchronously through the gear ring 16, and then the transmission gear 10 can drive the threaded rod 8 to rotate, and with the cooperation of the guide assembly, the threaded rod 8 can drive the positioning column 9 to move smoothly along a straight line, and then the positioning column 9 can drive the clamping arm 12 to move smoothly in the positioning hole 11, so that multiple groups of clamping arms 12 can be controlled to close inward or separate outward at the same time.

[0044] The movable ring 15 is provided with a plurality of slide posts 17 on the side opposite to the gear ring 16, and the inner wall of the annular cavity 7 is provided with a slide groove 18 that matches the slide posts 17. Based on this, by providing the slide posts 17 and the slide groove 18, the movable ring 15 can drive the slide posts 17 to slide in the slide groove 18, thereby ensuring stable rotation of the movable ring 15.

[0045] The guide assembly includes two guide posts 14 symmetrically fixed to one end of the clamping arm 12. The inner side of the fixing ring 5 is provided with a plurality of guide holes 13 that communicate with the annular cavity 7. The guide posts 14 can be inserted and fitted into the guide holes 13. Based on this, the provision of the guide posts 14 and the guide holes 13 ensures that the positioning post 9 drives the clamping arm 12 to move stably along a straight line.

[0046] A first connecting strap 27 is provided on one side of the mask body 1 , and a second connecting strap 28 is provided on the other side of the mask body 1 , and a tightness adjustment mechanism is provided between the first connecting strap 27 and the second connecting strap 28 .

[0047] A retaining ring 22 is provided at one end of the inner portion of the through hole 21 , and the end of the oxygen supply tube 6 abuts against the retaining ring 22 .

[0048] Specific reference Figure 1 、 Figure 2 、 Figure 6 and Figure 7As shown, the tension adjustment mechanism includes a support seat 29 provided at the end of the first connecting belt 27, a slide 30 is provided inside the support seat 29, the end of the second connecting belt 28 can be plugged into the slide 30, and a groove 31 is provided on one side of the interior of the slide 30. The side wall of the support seat 29 is connected to the second stud 32 by a threaded engagement, one end of the second stud 32 extends into the groove 31 and is movably connected to the tooth plate 34 through a bearing, and the other end of the second stud 32 is provided with a second fixing handle 33, and the outer side of the second connecting belt 28 is provided with a tooth groove 35 that meshes with the tooth plate 34. Based on this, by pulling the second connecting belt 28 to slide in the slide 30, and then twisting the second fixing handle 33, the second fixing handle 33 can drive the tooth plate 34 to slide back and forth in the groove 31 through the second stud 32, and then the tooth plate 34 can extend out of the groove 31 and lean against the second connecting belt 28 in the slide 30, so that the tooth plate 34 engages with the tooth groove 35, so that the second connecting belt 28 can be locked on the support seat 29. On the contrary, the second fixing handle 33 is twisted to release the lock, and the second connecting belt 28 can continue to be pulled to slide in the slide 30.

[0049] When in use, the end of the oxygen supply tube 6 can be passed through the fixed ring 5 and inserted into the through hole 21, and then the end of the oxygen supply tube 6 can be abutted against the retaining ring 22, and then the handle 20 can be screwed to drive the driving gear 19 to rotate, and the driving gear 19 can drive the gear ring 16 to rotate, so that the gear ring 16 drives the movable ring 15 to rotate, and then the movable ring 15 can drive multiple transmission gears 10 to rotate synchronously through the gear ring 16, and then the transmission gear 10 can drive the threaded rod 8 to rotate, and with the cooperation of the guide assembly, the threaded rod 8 can drive the fixed ring 5 to rotate. The positioning post 9 moves smoothly along a straight line, and then the positioning post 9 can drive the clamping arm 12 to move smoothly in the positioning hole 11, so that the multiple groups of clamping arms 12 can be controlled to close inward at the same time to clamp the oxygen supply tube 6, so that the oxygen supply tube 6 can be locked and fixed on the mask body 1, and the connection is stable and reliable. Conversely, by controlling the multiple groups of clamping arms 12 to separate outward at the same time to release the fixation, the oxygen supply tube 6 can be pulled out of the through hole 21 and the fixing ring 5 in turn, thereby realizing rapid disassembly and assembly between the oxygen supply tube 6 and the mask body 1, and the operation is flexible and convenient, which greatly improves the use effect of the device;

[0050] The second connecting strap 28 can be rotated to slide in the slide 30 on the support seat 29, and the first connecting strap 27 and the second connecting strap 28 can be fastened to the head. Then the second fixing handle 33 can be turned, and the second fixing handle 33 can drive the tooth plate 34 to slide back and forth in the groove 31 through the second screw 32. Then the tooth plate 34 can extend out of the groove 31 and lean against the second connecting strap 28 in the slide track 30, so that the tooth plate 34 engages with the tooth groove 35, thereby locking the second connecting strap 28 on the support seat 29, and the mask body 1 can be quickly bound and fixed to the patient's face. Conversely, the second fixing handle 33 is turned to release the lock, and the second connecting strap 28 can be continued to be pushed and pulled to slide in the slide track 30, and then the tightness of the mask body 1 can be quickly adjusted according to the use requirements, which greatly improves the comfort of the mask body 1 when in use.

[0051] Specific reference Figure 3 、 Figure 4 and Figure 8 As shown, the top and bottom ends of the fixing base 4 are symmetrically provided with a receiving cavity 23 that communicates with the through hole 21. A stopper 26 is slidably connected to the interior of the receiving cavity 23. A first stud 24 is screwed to both ends of the fixing base 4. One end of the first stud 24 extends into the receiving cavity 23 and is movably connected to the stopper 26 via a bearing. The other end of the first stud 24 is located outside the fixing base 4 and is provided with a first fixing handle 25. Based on this, by twisting the two first fixing handles 25, the first fixing handles 25 can drive the first stud 24 to rotate, and then the first stud 24 can drive the stopper 26 to slide within the receiving cavity 23, thereby adjusting the spacing between the two stoppers 26. By adjusting the spacing, the blocking area of ​​the through hole 21 can be controlled, thereby achieving adjustable control of the oxygen flow rate.

[0052] Specific reference Figure 3 、 Figure 4 and Figure 5 As shown, a support member is provided at the inner bottom end of the mask body 1 , an oxygen absorption tube 38 is connected to the top end of the support member, and a protective ring 39 is provided at one end of the oxygen absorption tube 38 close to the through hole 21 .

[0053] The support member includes a support tube 36 and a support column 37. The bottom end of the support tube 36 is fixedly connected to the mask body 1, and the top end of the support tube 36 is provided with a sliding cavity 40. The bottom end of the support column 37 is slidably connected to the sliding cavity 40, and the top end of the support column 37 is fixedly connected to the oxygen tube 38. Limit blocks 41 are provided on both sides of the bottom end of the support column 37, and limit grooves 42 that match the limit blocks 41 are opened on both sides of the interior of the sliding cavity 40. Based on this, the oxygen tube 38 can drive the support column 37 to slide in the sliding cavity 40 inside the support tube 36, and then the support column 37 can drive the limit blocks 41 to slide along the limit grooves 42, thereby freely driving the oxygen tube 38 up and down to adjust the suspended installation height of the oxygen tube 38.

[0054] During use, by twisting the two first fixing handles 25, the first fixing handles 25 can drive the first screw 24 to rotate, and then the first screw 24 can drive the stopper 26 to slide in the receiving cavity 23, so that the distance between the two stoppers 26 can be adjusted. By adjusting the distance, the blocking area of ​​the through hole 21 can be controlled, and the oxygen flow rate can be adjusted and controlled, which greatly improves the use effect of the mask body 1;

[0055] When the mask body 1 is worn, the oxygen inhalation tube 38 suspended in the mask body 1 can be inserted into the patient's mouth. Even if the patient holds the oxygen inhalation tube 38 in his mouth, the oxygen inhalation tube 38 can drive the support column 37 to slide in the sliding cavity 40 in the support tube 36, and the support column 37 can drive the limit block 41 to slide along the limit groove 42, so that the oxygen inhalation tube 38 can be moved up and down, and the height of the oxygen inhalation tube 38 when connected can be flexibly controlled according to needs, so that the oxygen flowing into the mask body 1 can quickly enter the patient's respiratory tract through the oxygen inhalation tube 38, thereby greatly improving the oxygen supply effect.

[0056] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. An oxygen inhalation mask, characterized in that: include: A mask body (1), wherein a fixing seat (4) is provided on the outside of the mask body (1), and a silicone pad (2) is provided on the inside of the mask body (1); a fixing ring (5) is provided at one end of the fixing seat (4) relative to the mask body (1); a through hole (21) communicating with the mask body (1) is provided inside the fixing seat (4); an oxygen supply tube (6) is inserted into the interior of the fixing ring (5); and one end of the oxygen supply tube (6) can be plugged into and fitted into the through hole (21); An annular cavity (7), wherein the annular cavity (7) is arranged in a fixed ring (5), and the four inner ends of the fixed ring (5) are provided with positioning holes (11) communicating with the annular cavity (7), the interior of the positioning hole (11) is penetrated by a positioning column (9), one end of the positioning column (9) extending into the interior of the annular cavity (7) is connected to a driving mechanism, and the other end of the positioning column (9) is connected to a clamping arm (12), a guide assembly is provided between the clamping arm (12) and the fixed ring (5), and the driving mechanism is used to drive multiple positioning columns (9) to move synchronously; A first connecting belt (27) is provided on one side of the mask body (1), and a second connecting belt (28) is provided on the other side of the mask body (1), and a tightness adjustment mechanism is provided between the first connecting belt (27) and the second connecting belt (28).

2. An oxygen inhalation mask according to claim 1, characterized in that: The driving mechanism comprises a threaded rod (8) rotatably mounted at four ends inside the annular cavity (7) near one side of a positioning column (9), one end of the threaded rod (8) being screwed together with the positioning column (9) through a thread, and a transmission gear (10) being fixed to the other end of the threaded rod (8), a movable ring (15) being mounted on one side inside the annular cavity (7), a side wall of the movable ring (15) being provided with a gear ring (16) meshing with a plurality of transmission gears (10), a rotating handle (20) being provided at one end of the side wall of the fixed ring (5), an output end of the rotating handle (20) extending into the annular cavity (7) and connected to a driving gear (19), and the driving gear (19) being meshed with the gear ring (16).

3. An oxygen inhalation mask according to claim 2, characterized in that: A plurality of slide posts (17) are provided on one side of the movable ring (15) relative to the gear ring (16), and a slide groove (18) matching the slide posts (17) is provided on the inner wall of the annular cavity (7).

4. An oxygen inhalation mask according to claim 1, characterized in that: The guide assembly comprises two guide posts (14) symmetrically fixed at one end of the clamp arm (12); a plurality of guide holes (13) communicating with the annular cavity (7) are provided on the inner side of the fixing ring (5); and the guide posts (14) can be plugged into and fitted in the guide holes (13).

5. The oxygen inhalation mask according to claim 1, characterized in that: The tension adjustment mechanism includes a support seat (29) arranged at the end of the first connecting belt (27), a slideway (30) is provided inside the support seat (29), the end of the second connecting belt (28) can be plugged into the slideway (30), a groove (31) is provided on one side of the interior of the slideway (30), the side wall of the support seat (29) is connected to a second stud (32) by screw thread engagement, one end of the second stud (32) extends into the groove (31) and is movably connected to a tooth plate (34) through a bearing, and the other end of the second stud (32) is provided with a second fixing handle (33), and the outer side of the second connecting belt (28) is provided with a tooth groove (35) meshing with the tooth plate (34).

6. An oxygen inhalation mask according to claim 1, characterized in that: Exhalation grooves (3) are provided on both sides of the mask body (1), and filters are provided in the exhalation grooves (3).

7. An oxygen inhalation mask according to claim 1, characterized in that: A retaining ring (22) is provided at one end inside the through hole (21), and the end of the oxygen supply pipe (6) abuts against the retaining ring (22).

8. The oxygen inhalation mask according to claim 1, characterized in that: The top and bottom ends of the fixing seat (4) are symmetrically provided with a receiving cavity (23) communicating with the through hole (21); a stopper (26) is slidably connected to the inside of the receiving cavity (23); both ends of the fixing seat (4) are connected to a first stud (24) by screw thread; one end of the first stud (24) extends into the receiving cavity (23) and is movably connected to the stopper (26) through a bearing; and the other end of the first stud (24) is located outside the fixing seat (4) and is provided with a first fixing handle (25).

9. The oxygen inhalation mask according to claim 1, characterized in that: A support member is provided at the inner bottom end of the mask body (1), an oxygen inhalation tube (38) is connected to the top end of the support member, and a protective ring (39) is provided at one end of the oxygen inhalation tube (38) close to the through hole (21).

10. An oxygen inhalation mask according to claim 9, characterized in that: The support member includes a support tube (36) and a support column (37), the bottom end of the support tube (36) is fixedly connected to the mask body (1), and the top end of the support tube (36) is provided with a sliding cavity (40), the bottom end of the support column (37) is slidably connected in the sliding cavity (40), and the top end of the support column (37) is fixedly connected to the oxygen inhalation tube (38), and both sides of the bottom end of the support column (37) are provided with limiting blocks (41), and both sides of the interior of the sliding cavity (40) are provided with limiting grooves (42) that match the limiting blocks (41).

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