CN107651141B

CN107651141B - Underwater breathing mask

Info

Publication number: CN107651141B
Application number: CN201711088480.1A
Authority: CN
Inventors: 赵福源
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-11-08
Filing date: 2017-11-08
Publication date: 2023-08-18
Anticipated expiration: 2037-11-08
Also published as: CN107651141A

Abstract

The invention discloses an underwater breathing mask, which comprises a breathing mask shell, wherein one side of the breathing mask shell is communicated with an air outlet pipe, an air suction mask is fixedly arranged on the breathing mask shell and is communicated with the inside of the breathing mask shell, a connecting block is fixedly arranged at the bottom side of the air suction mask, a connecting groove is formed at the bottom side of the connecting block and is communicated with the air suction mask, a connecting pipe is movably arranged in the connecting groove, one end of the connecting pipe extends out of the connecting groove and is fixedly provided with a spiral air inlet pipe, one end of the spiral air inlet pipe far away from the connecting pipe is fixed on the bank, a mounting groove is formed at one side of the connecting block, and a sliding hole is formed in the inner wall of one side, close to the connecting groove, of the mounting groove. The multifunctional swimming training device can enable people to perform half-power culture in water for a long time without ventilation, can facilitate stable installation of the connecting pipe, is convenient to detach, facilitates stable fixation of the height position of the bandage, and is convenient for different users to wear.

Description

Underwater breathing mask

Technical Field

The invention relates to the technical field of respirators, in particular to an underwater respirators.

Background

The existing breathing mask comprises a mask matched with the shape of the face of a person, an air inlet is formed in the outer portion of the mask, and when the breathing mask is used, the mask is worn on the upper face, so that the inner side end of the air inlet corresponds to the mouth of the person.

The patent of application number 201110243850.0 discloses a multifunctional breathing mask, and it includes face guard, flexible pipe, inlet end casing, and the one end of flexible pipe is connected on the inlet end casing, and the other end of flexible pipe is connected on the face guard, and the lumen of flexible pipe switches on the inner chamber of inlet end casing and the air inlet of face guard, is provided with a plurality of inlet ports that switch on with its inner chamber on the inlet end casing outer wall, and has packed a gravity piece or suspended solid in the inner chamber of inlet end casing. Compared with the prior art, the invention has the beneficial effects that: when the device is used, a user does not need to carry any oxygen supply equipment, and the user can concentrate on actual operation in the underwater or underground action process, and meanwhile, the air sucked by the user is directly sourced from the atmosphere as the air inlet end shell is always positioned in the atmosphere, so that the condition of gas exhaustion can not occur, and the safety of the user under the water or in operation is greatly improved. However, the existing respiratory mask cannot enable people to move underwater for a long time without ventilation, and different users wear the respiratory mask to adjust wearing positions, and meanwhile, the respiratory mask is inconvenient to mount and dismount the air inlet pipe and has certain limitation in use.

Disclosure of Invention

Based on the technical problems in the background technology, the invention provides an underwater breathing mask.

The invention provides an underwater breathing mask, which comprises a breathing mask shell, wherein one side of the breathing mask shell is communicated with an air outlet pipe, an air suction mask is fixedly arranged on the breathing mask shell, the air suction mask is communicated with the inside of the breathing mask shell, a connecting block is fixedly arranged at the bottom side of the air suction mask, a connecting groove is formed at the bottom side of the connecting block, the connecting groove is communicated with the air suction mask, a connecting pipe is movably arranged in the connecting groove, one end of the connecting pipe extends out of the connecting groove, a spiral air inlet pipe is fixedly arranged, one end of the spiral air inlet pipe far away from the connecting pipe is fixed on the bank, one side of the connecting block is provided with a mounting groove, a sliding hole is formed on the inner wall of one side of the mounting groove close to the connecting groove, the sliding hole is communicated with the connecting groove, a positioning rod is slidably arranged in the sliding hole, two ends of the positioning rod extend out of the sliding hole, a positioning hole is formed on the connecting pipe, a positioning groove is formed in the inner wall of one side of the connecting groove far away from the sliding hole, one end of the positioning rod, which is positioned in the connecting groove, penetrates through the positioning hole and extends into the positioning groove, one end of the positioning rod far away from the positioning groove extends into the mounting groove, a mounting block is fixedly mounted, a first spring sleeved on the positioning rod is fixedly mounted on one side of the mounting block close to the positioning rod, one end of the first spring far away from the mounting block is fixedly mounted on the inner wall of one side of the mounting groove close to the connecting groove, a stable mounting mechanism for firmly mounting the connecting pipe is arranged below the mounting groove, fixing blocks are fixedly mounted on two sides of the housing of the breathing mask, sliding grooves are formed in one sides of the two fixing blocks far away from each other, sliding blocks are mounted in the sliding grooves, one screw rod is rotatably mounted on the inner walls of the upper side and the lower side of the sliding grooves, the sliding block is provided with a threaded hole, the threaded hole is in threaded connection with the screw rod, a binding belt is fixedly arranged on one side of the sliding block, and an adjusting mechanism for adjusting the height position of the binding belt is arranged below the sliding groove.

Preferably, the firm installation mechanism is including seting up the first L shape spout in one side of connecting block, and first L shape spout is located the bottom side of mounting groove, and first L shape spout is linked together with the mounting groove, sliding mounting has first L shape slider in the first L shape spout, and outside the top of first L shape slider extended to first L shape spout, the bottom side of locating lever has been seted up and has been located the first fixed slot of mounting groove, the top slidable mounting of first L shape slider is in first fixed slot.

Preferably, a first sliding groove is formed in the inner wall of one side of the first L-shaped sliding groove, a first sliding block is slidably installed in the first sliding groove, one side of the first sliding block extends out of the first sliding groove, and the first sliding block is fixedly installed on the first L-shaped sliding block.

Preferably, a second spring is fixedly arranged on the inner wall of the bottom side of the first L-shaped sliding groove, and the top end of the second spring is fixedly arranged on the bottom side of the first L-shaped sliding block.

Preferably, the one end that first L shape slider kept away from first fixed slot is seted up flutedly, slidable mounting has the slide bar in the recess, and the one end of slide bar extends to outside the first L shape spout, and fixed mounting has the fly leaf, one side fixed mounting that the fly leaf is close to the slide bar has the fixture block, and a plurality of draw-in grooves have been seted up to one side that the connecting block is close to the fly leaf, fixture block and draw-in groove looks adaptation.

Preferably, the second sliding grooves are formed in the inner walls of the two sides of the groove, a second sliding block is arranged in the second sliding groove in a sliding mode, one side of the second sliding block extends out of the second sliding groove and is fixedly arranged on the sliding rod, a third spring sleeved on the sliding rod is fixedly arranged on one side, close to the movable plate, of the second sliding block, and one end, away from the second sliding block, of the third spring is fixedly arranged on the inner wall, close to the movable plate, of the second sliding groove.

Preferably, the adjustment mechanism includes the second L shape spout of seting up in fixed block one side, and second L shape spout is linked together with the sliding tray, sliding mounting has the second L shape slider in the second L shape spout, and outside the both ends of second L shape slider all extended to the second L shape spout, a plurality of second fixed slots have evenly been seted up to the bottom side annular of lead screw, the top slidable mounting of second L shape slider is in the second fixed slot.

Preferably, a third sliding groove is formed in the inner wall of one side of the second L-shaped sliding groove, a third sliding block is arranged in the third sliding groove in a sliding mode, one side of the third sliding block extends out of the third sliding groove and is fixedly arranged on the second L-shaped sliding block, a fourth spring is fixedly arranged on the inner wall of the bottom side of the second L-shaped sliding groove, and the top end of the fourth spring is fixedly arranged on the bottom side of the second L-shaped sliding block.

According to the underwater breathing mask, the breathing mask shell, the breathing mask, the air outlet pipe, the bandage, the spiral air inlet pipe, the connecting block, the connecting groove and the connecting pipe are matched for use, the spiral air inlet pipe on the breathing mask shell is fixed on the bank, the spiral air inlet pipe is spiral, the range of motion of a person learning swimming in water is increased, the air outlet pipe is arranged on the breathing mask shell, air exhaled by the person is exhausted out of the breathing mask shell through the air outlet pipe, the spiral air inlet pipe and the air outlet pipe can only be ventilated in one direction, so that air in the spiral air inlet pipe is fresh, the air outlet pipe cannot enter water, and when the breathing mask is used, the person can stay in water for a long time without ventilation, and half-power cultivation can be realized by learning swimming; through the cooperation of the mounting groove, the positioning rod, the first spring, the positioning hole, the positioning groove, the first fixed groove, the first L-shaped sliding block, the second spring, the first sliding groove, the first sliding block, the groove and the sliding rod, the connecting pipe is moved into the connecting groove, the positioning rod is moved to slide in the sliding hole, the positioning rod penetrates through the positioning hole and extends into the positioning groove, the positioning rod is firmly fixed in the positioning groove under the action force of the first spring, meanwhile, the first L-shaped sliding block is moved, the first L-shaped sliding block slides in the first L-shaped sliding groove, the first L-shaped sliding block drives the first sliding block to slide in the first sliding groove, the first sliding block drives the first L-shaped sliding block to move with the first fixed groove through the second spring, the connecting pipe can be conveniently and firmly installed, and the disassembly is convenient; the fixing block, the sliding groove, the sliding block, the threaded hole, the screw rod, the second L-shaped sliding groove, the second L-shaped sliding block, the second fixing groove, the third sliding block and the fourth spring are matched for use, the sliding block is moved, the sliding block drives the bandage to move up and down, the sliding block slides on the screw rod through the threaded hole, when the sliding block moves to a required position, the second L-shaped sliding block is moved, the second L-shaped sliding block drives the third sliding block to slide in the third sliding groove, the fourth spring acts on the fourth spring to drive the second L-shaped sliding block to move into the second fixing groove, so that the bandage can be conveniently and firmly fixed in height position, and different users can conveniently wear the bandage; the multifunctional swimming training device can enable people to perform half-power culture in water for a long time without ventilation, can facilitate stable installation of the connecting pipe, is convenient to detach, facilitates stable fixation of the height position of the bandage, and is convenient for different users to wear.

Drawings

FIG. 1 is a schematic view of an underwater breathing mask according to the present invention;

FIG. 2 is a schematic view of the structure of part A in FIG. 1 of the underwater breathing mask according to the present invention;

FIG. 3 is a schematic view of a portion A1 of the underwater breathing mask shown in FIG. 2;

FIG. 4 is a schematic view of the structure of part B in FIG. 1 of the underwater breathing mask according to the present invention;

fig. 5 is a schematic view of a part B1 of the underwater breathing mask in fig. 4 according to the present invention.

In the figure: the breathing mask comprises a breathing mask shell, a breathing mask 2, a gas outlet pipe 3, a bandage 4, a spiral gas inlet pipe 5, a connecting block 6, a connecting groove 7, a connecting pipe 8, a mounting groove 9, a positioning rod 10, a first spring 11, a positioning hole 12, a positioning groove 13, a first fixed groove 14, a first L-shaped sliding groove 15, a first L-shaped sliding block 16, a second spring 17, a first sliding groove 18, a first sliding block 19, a groove 20, a sliding rod 21, a fixed block 22, a sliding groove 23, a sliding block 24, a threaded hole 25, a screw rod 26, a second L-shaped sliding groove 27, a second L-shaped sliding block 28, a second fixed groove 29, a third sliding groove 30, a third sliding groove 31 and a fourth spring 32.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.

Examples

Referring to figures 1-5, the underwater breathing mask comprises a breathing mask shell 1, an air outlet pipe 3 is communicated with one side of the breathing mask shell 1, an air suction mask 2 is fixedly installed on the breathing mask shell 1, the air suction mask 2 is communicated with the inside of the breathing mask shell 1, a connecting block 6 is fixedly installed at the bottom side of the air suction mask 2, a connecting groove 7 is formed at the bottom side of the connecting block 6, the connecting groove 7 is communicated with the air suction mask 2, a connecting pipe 8 is movably installed in the connecting groove 7, one end of the connecting pipe 8 extends out of the connecting groove 7, a spiral air inlet pipe 5 is fixedly installed, one end of the spiral air inlet pipe 5 far from the connecting pipe 8 is fixed on the bank, a mounting groove 9 is formed at one side of the connecting block 6, a sliding hole is formed in the inner wall of one side of the mounting groove 9 close to the connecting groove 7, the sliding hole is communicated with the connecting groove 7, a positioning rod 10 is slidingly installed in the sliding hole, two ends of the positioning rod 10 extend out of the sliding hole, the connecting pipe 8 is provided with a positioning hole 12, the inner wall of one side of the connecting groove 7 far away from the sliding hole is provided with a positioning groove 13, one end of the positioning rod 10 positioned in the connecting groove 7 penetrates through the positioning hole 12 and extends into the positioning groove 13, one end of the positioning rod 10 far away from the positioning groove 13 extends into the mounting groove 9 and is fixedly provided with a mounting block, one side of the mounting block close to the positioning rod 10 is fixedly provided with a first spring 11 sleeved on the positioning rod 10, one end of the first spring 11 far away from the mounting block is fixedly arranged on the inner wall of one side of the mounting groove 9 close to the connecting groove 7, a stable mounting mechanism for stably mounting the connecting pipe 8 is arranged below the mounting groove 9, two sides of the breathing mask shell 1 are fixedly provided with fixing blocks 22, one sides of the two fixing blocks 22 far away from each other are provided with sliding grooves 23, the sliding blocks 24 are slidably mounted in the sliding grooves 23, the same screw rod 26 is rotatably arranged on the inner walls of the upper side and the lower side of the sliding groove 23, a threaded hole 25 is formed in the sliding block 24, the threaded hole 25 is in threaded connection with the screw rod 26, a binding belt 4 is fixedly arranged on one side of the sliding block 24, and an adjusting mechanism for adjusting the height position of the binding belt 4 is arranged below the sliding groove 23. Through respiratory mask casing 1, suction mask 2, outlet duct 3, bandage 4, spiral intake pipe 5, connecting block 6, spread groove 7, connecting pipe 8 cooperation use, spiral intake pipe 5 on the respiratory mask casing 1 is fixed on the bank, spiral intake pipe 5 is the heliciform, increase the people's of learning swimming movable range in water, install outlet duct 3 on respiratory mask casing 1, discharge respiratory mask casing 1 to the air that the people exhaled through outlet duct 3, spiral intake pipe 5 and outlet duct 3 only can one-way ventilate, with the fresh air in the assurance spiral intake pipe 5 and outlet duct 3 can not intaking, when using this respiratory mask, can let the people wait for a long time in water and do not need take a breath, study swimming just can half work in the past and cultivate.

The stable installation mechanism comprises a first L-shaped chute 15 arranged on one side of the connecting block 6, the first L-shaped chute 15 is positioned on the bottom side of the installation groove 9, the first L-shaped sliding groove 15 is communicated with the mounting groove 9, a first L-shaped sliding block 16 is slidably arranged in the first L-shaped sliding groove 15, the top end of the first L-shaped sliding block 16 extends out of the first L-shaped sliding groove 15, a first fixing groove 14 positioned in the mounting groove 9 is formed in the bottom side of the positioning rod 10, the top end of the first L-shaped sliding block 16 is slidably arranged in the first fixing groove 14, a first sliding groove 18 is formed in the inner wall of one side of the first L-shaped sliding groove 15, a first sliding block 19 is slidably arranged in the first sliding groove 18, one side of the first sliding block 19 extends out of the first sliding groove 18, and is fixedly arranged on the first L-shaped sliding block 16, a second spring 17 is fixedly arranged on the inner wall of the bottom side of the first L-shaped sliding groove 15, the top end of the second spring 17 is fixedly arranged on the bottom side of the first L-shaped sliding block 16, a groove 20 is arranged at one end of the first L-shaped sliding block 16 far away from the first fixed groove 14, a sliding rod 21 is arranged in the groove 20 in a sliding way, and one end of the slide bar 21 extends out of the first L-shaped slide groove 15, a movable plate is fixedly arranged, a clamping block is fixedly arranged on one side of the movable plate, which is close to the slide bar 21, a plurality of clamping grooves are formed on one side of the connecting block 6, which is close to the movable plate, the clamping blocks are matched with the clamping grooves, second slide grooves are formed on the inner walls of the two sides of the groove 20, a second slide block is arranged in the second slide groove in a sliding manner, one side of the second slide block extends out of the second slide groove, and fixedly mounted on the slide bar 21, one side of the second sliding block, which is close to the movable plate, is fixedly mounted with a third spring sleeved on the slide bar 21, and one end, which is far away from the second sliding block, of the third spring is fixedly mounted on the inner wall of one side, which is close to the movable plate, of the second sliding groove. Through mounting groove 9, locating lever 10, first spring 11, the locating hole 12, constant head tank 13, first fixed slot 14, first L shape spout 15, first L shape slider 16, second spring 17, first spout 18, first slider 19, recess 20, slide bar 21 cooperation is used, move connecting pipe 8 to in the connecting groove 8, remove locating lever 10, locating lever 10 slides in the sliding hole, locating lever 10 runs through locating hole 12 and extends to in the constant head tank 13, make locating lever 10 firm in constant head tank 13 under the effort of first spring 11, simultaneously, remove first L shape slider 16, first L shape slider 16 slides in first L shape spout 15, first L shape slider 16 drives first slider 19 and slides in first spout 18, first slider 19 drives through second spring 17 drives first L shape slider 16 and moves in taking first fixed slot 14, can be convenient for firm installation connecting pipe 8, and dismantle conveniently.

The adjusting mechanism comprises a second L-shaped sliding groove 27 formed in one side of the fixed block 22, the second L-shaped sliding groove 27 is communicated with the sliding groove 23, a second L-shaped sliding block 28 is arranged in the second L-shaped sliding groove 27 in a sliding mode, two ends of the second L-shaped sliding block 28 extend out of the second L-shaped sliding groove 27, a plurality of second fixing grooves 29 are formed in the bottom side of the screw rod 26 in an annular mode, the top end of the second L-shaped sliding block 28 is arranged in the second fixing groove 29 in a sliding mode, a third sliding groove 30 is formed in the inner wall of one side of the second L-shaped sliding groove 27, a third sliding block 31 is arranged in the third sliding groove 30 in a sliding mode, one side of the third sliding block 31 extends out of the third sliding groove 30 and is fixedly arranged on the second L-shaped sliding block 28, a fourth spring 32 is fixedly arranged on the inner wall of the bottom side of the second L-shaped sliding groove 27, and the top end of the fourth spring 32 is fixedly arranged on the bottom side of the second L-shaped sliding block 28. Through the cooperation of the fixed block 22, the sliding groove 23, the sliding block 24, the threaded hole 25, the screw rod 26, the second L-shaped sliding groove 27, the second L-shaped sliding block 28, the second fixed groove 29, the third sliding groove 30, the third sliding block 31 and the fourth spring 32, the sliding block 24 is moved, the sliding block 24 drives the bandage 4 to move up and down, the sliding block 4 slides on the screw rod 26 through the threaded hole 25, when the sliding block 4 moves to a required position, the second L-shaped sliding block 28 is moved, the second L-shaped sliding block 28 drives the third sliding block 31 to slide in the third sliding groove 30, the fourth spring 32 drives the second L-shaped sliding block 28 to move into the second fixed groove 29 under the action force, so that the height position of the bandage 4 can be conveniently and firmly fixed, and different users can wear the bandage 4 conveniently; the invention can enable people to work and culture in half without ventilation in water for a long time and study swimming, and simultaneously can facilitate the stable installation of the connecting pipe 8, the disassembly and the stable fixation of the height position of the bandage 4, and the wearing of different users.

The invention comprises the following steps: the spiral air inlet pipe 5 on the breathing mask shell 1 is fixed on the bank, the spiral air inlet pipe 5 is spiral, the moving range of a person learning swimming in water is increased, the air outlet pipe 3 is arranged on the breathing mask shell 1, air exhaled by the person is exhausted out of the breathing mask shell 1 through the air outlet pipe 3, the spiral air inlet pipe 5 and the air outlet pipe 3 can only be ventilated in one direction, so that the air in the spiral air inlet pipe 5 is fresh, the air outlet pipe 3 cannot enter water, and when the breathing mask is used, the person can stay in water for a long time without ventilation, and can learn swimming to perform half-power culture; moving the connecting pipe 8 into the connecting groove 8, moving the positioning rod 10, sliding the positioning rod 10 in the sliding hole, penetrating the positioning hole 12 and extending into the positioning groove 13 by the positioning rod 10, stabilizing the positioning rod 10 in the positioning groove 13 under the action of the first spring 11, simultaneously moving the first L-shaped sliding block 16, sliding the first L-shaped sliding block 16 in the first L-shaped sliding groove 15, driving the first sliding block 19 to slide in the first sliding groove 18 by the first L-shaped sliding block 16, driving the first L-shaped sliding block 16 to move in the first fixed groove 14 by the first sliding block 19 through the second spring 17, and achieving the purposes of convenience in stably installing the connecting pipe 8 and convenience in disassembly; moving the sliding block 24, the sliding block 24 drives the bandage 4 to move up and down, and the sliding block 4 slides on the screw rod 26 through the threaded hole 25, when the sliding block 4 moves to a required position, the second L-shaped sliding block 28 is moved, the second L-shaped sliding block 28 drives the third sliding block 31 to slide in the third sliding groove 30, the fourth spring 32 drives the second L-shaped sliding block 28 to move into the second fixing groove 29 under acting force, and the purposes of being convenient for fixing the height position of the bandage 4 firmly and being convenient for different users to wear are achieved.

The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims

1. The utility model provides an underwater respiratory mask, includes respiratory mask casing (1), its characterized in that, one side intercommunication of respiratory mask casing (1) has outlet duct (3), fixed mounting has suction mask (2) on respiratory mask casing (1), and suction mask (2) are linked together with respiratory mask casing (1) inside, the bottom side fixed mounting of suction mask (2) has connecting block (6), connecting groove (7) have been seted up to the bottom side of connecting block (6), and connecting groove (7) are linked together with suction mask (2), movable mounting has connecting pipe (8) in connecting groove (7), and the one end of connecting pipe (8) extends outside connecting groove (7), and fixed mounting has spiral intake pipe (5), one end that connecting pipe (8) were kept away from to spiral intake pipe (5) is fixed on the bank, mounting groove (9) have been seted up on one side inner wall that mounting groove (9) are close to connecting groove (7), and the sliding hole is linked together with connecting groove (7), in the sliding hole has locating lever (10) and locating hole (10) are kept away from on one side inner wall (7) and one side of connecting pipe (7) is kept away from locating hole (12), one end of the locating rod (10) is positioned in the connecting groove (7) and penetrates through the locating hole (12) and extends into the locating groove (13), one end of the locating rod (10) away from the locating groove (13) extends into the mounting groove (9) and is fixedly provided with a mounting block, one side of the mounting block, which is close to the locating rod (10), is fixedly provided with a first spring (11) sleeved on the locating rod (10), one end of the first spring (11) away from the mounting block is fixedly provided with a firm mounting mechanism for firmly mounting the connecting pipe (8) on one side inner wall of the mounting groove (9), which is close to the connecting groove (7), the lower part of the mounting groove (9) is provided with a firm mounting mechanism for firmly mounting the connecting pipe (8), two sides of the respiratory mask shell (1) are fixedly provided with fixing blocks (22), one sides, which are mutually away from each other, of the two fixing blocks (22) are provided with sliding grooves (23), one side, which is provided with sliding blocks (24), the upper side and the lower side inner wall of the sliding groove (23) are fixedly provided with a same screw rod (26), one side of the sliding block (24), which is fixedly provided with the screw thread hole (25), an adjusting mechanism for adjusting the height position of the binding belt (4) is arranged below the sliding groove (23); the stable installation mechanism comprises a first L-shaped sliding groove (15) formed in one side of the connecting block (6), the first L-shaped sliding groove (15) is located at the bottom side of the installation groove (9), the first L-shaped sliding groove (15) is communicated with the installation groove (9), a first L-shaped sliding block (16) is slidably installed in the first L-shaped sliding groove (15), the top end of the first L-shaped sliding block (16) extends out of the first L-shaped sliding groove (15), a first fixing groove (14) located in the installation groove (9) is formed in the bottom side of the positioning rod (10), and the top end of the first L-shaped sliding block (16) is slidably installed in the first fixing groove (14); a groove (20) is formed in one end, far away from the first fixed groove (14), of the first L-shaped sliding block (16), a sliding rod (21) is arranged in the groove (20) in a sliding mode, one end of the sliding rod (21) extends out of the first L-shaped sliding groove (15) and is fixedly provided with a movable plate, a clamping block is fixedly arranged on one side, close to the sliding rod (21), of the movable plate, a plurality of clamping grooves are formed in one side, close to the movable plate, of the connecting block (6), and the clamping blocks are matched with the clamping grooves; the adjusting mechanism comprises a second L-shaped sliding groove (27) formed in one side of the fixed block (22), the second L-shaped sliding groove (27) is communicated with the sliding groove (23), a second L-shaped sliding block (28) is arranged in the second L-shaped sliding groove (27) in a sliding mode, two ends of the second L-shaped sliding block (28) extend out of the second L-shaped sliding groove (27), a plurality of second fixed grooves (29) are uniformly formed in the annular shape of the bottom side of the screw rod (26), and the top end of the second L-shaped sliding block (28) is slidably arranged in the second fixed groove (29).

2. The underwater breathing mask according to claim 1, wherein a first chute (18) is formed in an inner wall of one side of the first L-shaped chute (15), a first sliding block (19) is slidably mounted in the first chute (18), one side of the first sliding block (19) extends out of the first chute (18), and the first sliding block is fixedly mounted on the first L-shaped sliding block (16).

3. The underwater breathing mask according to claim 1, characterized in that a second spring (17) is fixedly mounted on the inner wall of the bottom side of the first L-shaped chute (15), and the top end of the second spring (17) is fixedly mounted on the bottom side of the first L-shaped slider (16).

4. The underwater breathing mask according to claim 1, wherein the inner walls of the two sides of the groove (20) are provided with second sliding grooves, a second sliding block is arranged in the second sliding grooves in a sliding mode, one side of the second sliding block extends out of the second sliding grooves and is fixedly arranged on the sliding rod (21), one side, close to the movable plate, of the second sliding block is fixedly provided with a third spring sleeved on the sliding rod (21), and one end, far away from the second sliding block, of the third spring is fixedly arranged on the inner wall of one side, close to the movable plate, of the second sliding groove.

5. The underwater breathing mask according to claim 1, wherein a third sliding groove (30) is formed in an inner wall of one side of the second L-shaped sliding groove (27), a third sliding block (31) is installed in the third sliding groove (30) in a sliding mode, one side of the third sliding block (31) extends out of the third sliding groove (30) and is fixedly installed on the second L-shaped sliding block (28), a fourth spring (32) is fixedly installed on an inner wall of the bottom side of the second L-shaped sliding groove (27), and the top end of the fourth spring (32) is fixedly installed on the bottom side of the second L-shaped sliding block (28).