CN207510689U

CN207510689U - Underwater breathing cover

Info

Publication number: CN207510689U
Application number: CN201721474964.5U
Authority: CN
Inventors: 赵福源
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-11-08
Filing date: 2017-11-08
Publication date: 2018-06-19
Anticipated expiration: 2027-11-08

Abstract

The utility model discloses underwater breathing covers, including breathing over body case, the side of the breathing over body case is communicated with air outlet pipe, air-suction cover is installed on the breathing over body case, and air-suction cover is connected with respirator enclosure interior, the bottom side of the air-suction cover is installed with link block, the bottom side of the link block offers link slot, and link slot is connected with air-suction cover, connecting tube is movably installed in the link slot, and one end of connecting tube is extended to outside link slot, and it is installed with spiral air inlet, the one end of the spiral air inlet far from air inlet pipe is fixed on bank, the side of the link block offers mounting groove, the mounting groove offers sliding eye on the side inner wall of link slot.The utility model can allow people to be stayed in for a long time without ventilation in water, and study, which is swum, to train with regard to half work(of what one is particularly good at, meanwhile, it is capable to be convenient for firm installation connecting tube, and convenient disassembly, convenient for the height and position of firm immobilizing bandage, is worn convenient for different users.

Description

Underwater breathing cover

Technical field

The utility model is related to respirator technical field more particularly to underwater breathing covers.

Background technology

Existing breathing mask include one with the matched mask of human face's shape, mask exterior set air into Mouthful, in use, mask is worn on upper surface portion, the inner end of air intlet is made to correspond to the oral area of people.

Patent application No. is 201110243850.0 discloses a kind of Multifunctional breathing mask, it includes mask, flexibility Pipe, air inlet end housing, one end of flexible pipe are connected in air inlet end housing, and the other end of flexible pipe is connected on mask, flexible The inner cavity of tube chamber conducting air inlet end housing of pipe and the air intlet of mask, be provided on inlet end housing exterior walls it is multiple in it The air admission hole of chamber conducting, and a gravity block or suspension block are filled in the inner cavity of air inlet end housing.Compared with the prior art, this reality It is with novel advantageous effect：Its when in use, user without subsidiary any oxygen supply equipment with oneself, user under water or In the mechanism of underground, energy can be concentrated in practical operation, simultaneously as air inlet end housing is always positioned at atmospheric environment In, the air that user is sucked is directed to air, will not be used up there is a situation where gas, considerably increases user and exists Safety that is underwater or carrying out operation.However, existing respirator cannot enable a person to prolonged activity under water and not have to change Gas, and different users wear and are not easy to adjust wearing position, meanwhile, it is not easy to that air inlet pipe is installed and is dismounted, has in use There is certain limitation.

Utility model content

Technical problems based on background technology, the utility model proposes underwater breathing covers.

The utility model proposes underwater breathing cover, including breathe over body case, it is described breathing over body case side be communicated with Air outlet pipe, described breathe are installed with air-suction cover, and air-suction cover is connected with respirator enclosure interior on over body case, the suction The bottom side of gas hood is installed with link block, and the bottom side of the link block offers link slot, and link slot is connected with air-suction cover It is logical, connecting tube is movably installed in the link slot, and one end of connecting tube is extended to outside link slot, and is installed with spiral Air inlet pipe, the one end of the spiral air inlet far from air inlet pipe are fixed on bank, and the side of the link block offers mounting groove, The mounting groove offers sliding eye, and sliding eye is connected with link slot on the side inner wall of link slot, the slip Locating rod is slidably fitted in hole, and the both ends of locating rod are all extended to outside sliding eye, location hole is offered in the connecting tube, Link slot offers locating slot on the side inner wall far from sliding eye, positioning is run through in one end that the locating rod is located in link slot Hole, and extend in locating slot, one end of the remotely located slot of locating rod is extended in mounting groove, and be installed with installation Block, the mounting blocks are installed with the first spring of socket on the securing lever, first spring close to the side of locating rod One end far from mounting blocks is fixedly mounted on mounting groove on the side inner wall of link slot, and the lower section of the mounting groove, which is equipped with, to be used In the firm installing mechanism of firm installation connecting tube, the breathing over body case both sides are installed with fixed block, two fixations The side that block is located remotely from each other offers sliding groove, is slidably fitted with sliding shoe in the sliding groove, the sliding groove up and down Same screw is rotatablely equipped on the inner wall of both sides, threaded hole, the threaded hole and screw spiral shell are offered on the sliding shoe Line connects, and the side of the sliding shoe is installed with bandage, and the lower section of the sliding groove is equipped with to adjust bandage height position The regulating mechanism put.

Preferably, the firm installing mechanism includes the first L-shaped sliding slot for being opened in the side of link block, and the first L-shaped is slided Slot is located at the bottom side of mounting groove, and the first L-shaped sliding slot is connected with mounting groove, and is slidably fitted in the first L-shaped sliding slot One L-shaped sliding block, the top of the first L-shaped sliding block are extended to outside the first L-shaped sliding slot, and the bottom side of the locating rod is offered positioned at installation The first fixing groove in slot, the top of the first L-shaped sliding block are slidably mounted in the first fixing groove.

Preferably, the first sliding groove is offered on the side inner wall of the first L-shaped sliding slot, peace is slided in the first sliding groove Equipped with the first sliding block, the side of the first sliding block is extended to outside the first sliding groove, and is fixedly mounted on the first L-shaped sliding block.

Preferably, second spring is installed on the bottom side inner wall of the first L-shaped sliding slot, the top of second spring is consolidated Dingan County is on the bottom side of the first L-shaped sliding block.

Preferably, the described one end of first L-shaped sliding block far from the first fixing groove opens up fluted, and peace is slided in the groove One end equipped with slide bar, and slide bar is extended to outside the first L-shaped sliding slot, and is installed with movable plate, and the movable plate is close to sliding The side of bar is installed with fixture block, and link block offers multiple card slots, the fixture block and card slot phase close to the side of movable plate Adaptation.

Preferably, second sliding slot is offered on the both sides inner wall of the groove, is slidably fitted in the second sliding slot Second sliding block, the side of the second sliding block is extended to outside second sliding slot, and is fixedly mounted on slide bar, and second sliding block is close to living The side of movable plate is installed with the third spring being socketed on slide bar, and the one end of third spring far from the second sliding block is fixedly mounted On side inner wall of the second sliding slot close to movable plate.

Preferably, the regulating mechanism includes the second L-shaped sliding slot for being opened in fixed block side, the 2nd L phases sliding slot and cunning Dynamic slot is connected, and the second L-shaped sliding block is slidably fitted in the second L-shaped sliding slot, and the both ends of the second L-shaped sliding block extend To outside the second L-shaped sliding slot, the bottom side annular of screw is uniformly provided with multiple second fixing grooves, the top of the second L-shaped sliding block It is slidably mounted in the second fixing groove.

Preferably, third sliding slot is offered on the side inner wall of the second L-shaped sliding slot, is slidably fitted in third sliding slot Third sliding block, the side of third sliding block are extended to outside third sliding slot, and are fixedly mounted on the second L-shaped sliding block, second L-shaped The 4th spring is installed on the bottom side inner wall of sliding slot, the top of the 4th spring is fixedly mounted on the bottom side of the second L-shaped sliding block.

In the utility model, the underwater breathing cover, by breathe over body case, air-suction cover, air outlet pipe, bandage, spiral into Tracheae, link block, link slot, connecting tube are used cooperatively, and the spiral air inlet breathed on over body case is fixed on bank, spirally inlet air The people in the shape of a spiral, increasing learning swim scope of activities in water is managed, air outlet pipe is installed on breathing over body case, people's exhalation Air discharges breathing over body case by air outlet pipe, spiral air inlet and air outlet pipe can only one-way ventilating, to ensure spiral air inlet In with fresh air and air outlet pipe will not intake, during with this respirator, people can be allowed to stay in for a long time and do not have to ventilation in water, study Swimming trains with regard to half work(of what one is particularly good at；Pass through mounting groove, locating rod, the first spring, location hole, locating slot, the first fixing groove, the first L Shape sliding slot, the first L-shaped sliding block, second spring, the first sliding groove, the first sliding block, groove, slide bar are used cooperatively, and connecting tube is moved Into link slot, running fix bar, locating rod is slided in sliding eye, and locating rod is through location hole and extends in locating slot, So that locating rod is stabilized in locating slot under first acting force of the spring, meanwhile, mobile first L-shaped sliding block, the first L-shaped sliding block is the It is slided in one L-shaped sliding slot, the first L-shaped sliding block drives the first sliding block to be slided in the first sliding groove, and the first sliding block is driven by second Spring is driven in the first L-shaped sliding block movement the first fixing groove of band, can be convenient for firm installation connecting tube, and convenient disassembly；Pass through Fixed block, sliding groove, sliding shoe, threaded hole, screw, the second L-shaped sliding slot, the second L-shaped sliding block, the second fixing groove, third sliding slot, Third sliding block, the 4th spring are used cooperatively, and mobile sliding shoe, sliding shoe drives bandage to move up and down, and sliding shoe passes through screw thread Hole is slided on screw, and when sliding shoe is moved to required position, mobile second L-shaped sliding block, the second L-shaped sliding block drives third sliding block It is slided in third sliding slot, the second L-shaped sliding block is driven to be moved in the second fixing groove under the 4th acting force of the spring, can be convenient for steady Gu the height and position of immobilizing bandage is worn convenient for different users；The utility model can allow people to stay in water and do not have to for a long time Ventilation, study swimming to train with regard to half work(of what one is particularly good at, meanwhile, it is capable to convenient for firm installation connecting tube, and convenient disassembly, convenient for firm solid Determine the height and position of bandage, worn convenient for different users.

Description of the drawings

Fig. 1 be the utility model proposes underwater breathing cover structure diagram；

Fig. 2 be the utility model proposes underwater breathing cover Fig. 1 in part A structure diagram；

Fig. 3 be the utility model proposes underwater breathing cover Fig. 2 in A1 part-structure schematic diagrams；

Fig. 4 be the utility model proposes underwater breathing cover Fig. 1 in part B structure diagram；

Fig. 5 be the utility model proposes underwater breathing cover Fig. 4 in B1 part-structure schematic diagrams.

In figure：1 breathing over body case, 2 air-suction covers, 3 air outlet pipes, 4 bandages, 5 spiral air inlets, 6 link blocks, 7 link slots, 8 Connecting tube, 9 mounting grooves, 10 locating rods, 11 first springs, 12 location holes, 13 locating slots, 14 first fixing grooves, 15 first L-shaped are slided Slot, 16 first L-shaped sliding blocks, 17 second springs, 18 the first sliding grooves, 19 first sliding blocks, 20 grooves, 21 slide bars, 22 fixed blocks, 23 Sliding groove, 24 sliding shoes, 25 threaded holes, 26 screws, 27 second L-shaped sliding slots, 28 second L-shaped sliding blocks, 29 second fixing grooves, 30 Third sliding slot, 31 third sliding blocks, 32 the 4th springs.

Specific embodiment

The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole Embodiment.

Embodiment.

With reference to Fig. 1-5, underwater breathing cover, including breathing over body case 1, the side of breathing over body case 1 is communicated with air outlet pipe 3, Air-suction cover 2 is installed on breathing over body case 1, and is connected inside air-suction cover 2 and breathing over body case 1, the bottom side of air-suction cover 2 Link block 6 is installed with, the bottom side of link block 6 offers link slot 7, and link slot 7 is connected with air-suction cover 2, link slot Connecting tube 8 is movably installed in 7, and one end of connecting tube 8 is extended to outside link slot 7, and is installed with spiral air inlet 5, The one end of spiral air inlet 5 far from air inlet pipe 5 is fixed on bank, and the side of link block 6 offers mounting groove 9, and mounting groove 9 is close Sliding eye is offered on the side inner wall of link slot 7, and sliding eye is connected with link slot 7, it is fixed to be slidably fitted in sliding eye Position bar 10, and the both ends of locating rod 10 are all extended to outside sliding eye, location hole 12 are offered in connecting tube 8, link slot 7 is far from sliding Locating slot 13 is offered on the side inner wall in dynamic hole, location hole 12 is run through, and extend in one end that locating rod 10 is located in link slot 7 To locating slot 13, one end of 10 remotely located slot 13 of locating rod is extended in mounting groove 9, and be installed with mounting blocks, peace Dress block is installed with the first spring 11 being socketed in locating rod 10 close to the side of locating rod 10, and the first spring 11 is far from peace One end of dress block is fixedly mounted on mounting groove 9 on the side inner wall of link slot 7, and the lower section of mounting groove 9 is equipped with to consolidate The firm installing mechanism of connecting tube 8 is installed, 1 both sides of breathing over body case are installed with fixed block 22, two 22 phases of fixed block Mutually separate side offers sliding groove 23, and sliding shoe 24, the both sides up and down of sliding groove 23 are slidably fitted in sliding groove 23 Same screw 26 is rotatablely equipped on inner wall, threaded hole 25, threaded hole 25 and 26 screw thread of screw are offered on sliding shoe 24 Connection, the side of sliding shoe 24 are installed with bandage 4, and the lower section of sliding groove 23 is equipped with to adjust 4 height and position of bandage Regulating mechanism.By breathing over body case 1, air-suction cover 2, air outlet pipe 3, bandage 4, spiral air inlet 5, link block 6, link slot 7, connecting Take over 8 is used cooperatively, and breathes the spiral air inlet 5 on over body case 1 and is fixed on bank, spiral air inlet 5 in the shape of a spiral, increases and learns The people of swimming scope of activities in water, air outlet pipe 3 is equipped on breathing over body case 1, and the air that people breathes out is passed through air outlet pipe 3 Discharge breathing over body case 1, spiral air inlet 5 and air outlet pipe 3 can only one-way ventilating, to ensure that the air in spiral air inlet 5 is clear New and air outlet pipe 3 will not intake, and during with this respirator, people can be allowed to stay in for a long time and do not have to ventilation in water, study, which is swum, to be come just Half work(of what one is particularly good at is trained.

Firm installing mechanism includes the first L-shaped sliding slot 15 for being opened in the side of link block 6, and the first L-shaped sliding slot 15 is located at The bottom side of mounting groove 9, and the first L-shaped sliding slot 15 is connected with mounting groove 9, and the first L is slidably fitted in the first L-shaped sliding slot 15 Shape sliding block 16, the top of the first L shapes sliding block 16 are extended to outside the first L-shaped sliding slot 15, and the bottom side of locating rod 10 is offered positioned at peace The first fixing groove 14 in tankage 9, the top of the first L-shaped sliding block 16 are slidably mounted in the first fixing groove 14, the first L-shaped sliding slot The first sliding groove 18 is offered on 15 side inner wall, the first sliding block 19 is slidably fitted in the first sliding groove 18, the first sliding block 19 Side is extended to outside the first sliding groove 18, and is fixedly mounted on the first L-shaped sliding block 16, on the bottom side inner wall of the first L-shaped sliding slot 15 Second spring 17 is installed with, the top of second spring 17 is fixedly mounted on the bottom side of the first L-shaped sliding block 16, the first L-shaped The one end of sliding block 16 far from the first fixing groove 14 opens up fluted 20, is slidably fitted with slide bar 21 in groove 20, and slide bar 21 One end is extended to outside the first L-shaped sliding slot 15, and is installed with movable plate, and movable plate is installed with close to the side of slide bar 21 Fixture block, link block 6 offer multiple card slots close to the side of movable plate, and fixture block is adapted with card slot, the both sides inner wall of groove 20 On offer second sliding slot, the second sliding block is slidably fitted in second sliding slot, the side of the second sliding block extends to second sliding slot Outside, it and is fixedly mounted on slide bar 21, the second sliding block is installed be socketed on slide bar 21 close to the side of movable plate Three springs, the one end of third spring far from the second sliding block are fixedly mounted on second sliding slot on the side inner wall of movable plate.It is logical Cross mounting groove 9, locating rod 10, the first spring 11, location hole 12, locating slot 13, the first fixing groove 14, the first L-shaped sliding slot 15, One L-shaped sliding block 16, second spring 17, the first sliding groove 18, the first sliding block 19, groove 20, slide bar 21 are used cooperatively, by connecting tube 8 It is moved in link slot 8, running fix bar 10, locating rod 10 is slided in sliding eye, and locating rod 10 is through location hole 12 and prolongs It extends in locating slot 13, so that locating rod 10 is stabilized in locating slot 13 under 11 active force of the first spring, meanwhile, mobile first L Shape sliding block 16, the first L-shaped sliding block 16 slide in the first L-shaped sliding slot 15, and the first L-shaped sliding block 16 drives the first sliding block 19 the It is slided in one sliding slot 18, the first sliding block 19 drives drives the first L-shaped sliding block 16 to move the first fixing groove of band by second spring 17 In 14, firm installation connecting tube 8, and convenient disassembly can be convenient for.

Regulating mechanism includes the second L-shaped sliding slot 27 for being opened in 22 side of fixed block, the 2nd L phases sliding slot 27 and sliding groove 23 are connected, and the second L-shaped sliding block 28 are slidably fitted in the second L-shaped sliding slot 27, and the both ends of the second L-shaped sliding block 28 extend To outside the second L-shaped sliding slot 27, the bottom side annular of screw 26 is uniformly provided with multiple second fixing grooves 29, the second L-shaped sliding block 28 Top is slidably mounted in the second fixing groove 29, and third sliding slot 30 is offered on the side inner wall of the second L-shaped sliding slot 27, and third is slided Third sliding block 31 is slidably fitted in slot 30, the side of third sliding block 31 is extended to outside third sliding slot 30, and is fixedly mounted on On two L-shaped sliding blocks 28, the 4th spring 32, the top of the 4th spring 32 are installed on the bottom side inner wall of the second L-shaped sliding slot 27 It is fixedly mounted on the bottom side of the second L-shaped sliding block 28.By fixed block 22, sliding groove 23, sliding shoe 24, threaded hole 25, screw 26, Second L-shaped sliding slot 27, the second L-shaped sliding block 28, the second fixing groove 29, third sliding slot 30, third sliding block 31, the 4th spring 32 coordinate It uses, mobile sliding shoe 24, sliding shoe 24 drives bandage 4 to move up and down, and sliding shoe 4 is sliding on screw 26 by threaded hole 25 It is dynamic, sliding shoe 4 be moved to needed for position when, mobile second L-shaped sliding block 28, the second L-shaped sliding block 28 drives third sliding block 31 the It is slided in three sliding slots 30, the second L-shaped sliding block 28 is driven to be moved in the second fixing groove 29 under 32 active force of the 4th spring, Neng Goubian In the height and position of firm immobilizing bandage 4, worn convenient for different users；The utility model can allow people to stay in water for a long time Without ventilation, study swimming trains with regard to half work(of what one is particularly good at, meanwhile, it is capable to convenient for firm installation connecting tube 8, and convenient disassembly, it is convenient for The height and position of firm immobilizing bandage 4, wears convenient for different users.

The utility model：Spiral air inlet 5 on breathing over body case 1 is fixed on bank, spiral air inlet 5 in the shape of a spiral, The people of increase learning swim scope of activities in water, is equipped with air outlet pipe 3 on breathing over body case 1, the air that people breathes out is passed through The discharge breathing over body case 1 of air outlet pipe 3, spiral air inlet 5 and air outlet pipe 3 can only one-way ventilating, to ensure in spiral air inlet 5 With fresh air and air outlet pipe 3 will not intake, during with this respirator, people can be allowed to stay in for a long time and do not have to ventilation in water, study Swimming trains with regard to half work(of what one is particularly good at；Connecting tube 8 is moved in link slot 8, running fix bar 10, locating rod 10 is sliding in sliding eye Dynamic, locating rod 10 is through location hole 12 and extends in locating slot 13, so that locating rod 10 is firm under 11 active force of the first spring In locating slot 13, meanwhile, mobile first L-shaped sliding block 16, the first L-shaped sliding block 16 slides in the first L-shaped sliding slot 15, the first L Shape sliding block 16 drives the first sliding block 19 to slide in the first sliding groove 18, and the first sliding block 19 drives drives the by second spring 17 In the first fixing groove of one L-shaped sliding block 16 movement band 14, reach convenient for firm installation connecting tube 8, and the purpose of convenient disassembly；It is mobile Sliding shoe 24, sliding shoe 24 drive bandage 4 to move up and down, and sliding shoe 4 is slided by threaded hole 25 on screw 26, sliding shoe 4 be moved to needed for position when, mobile second L-shaped sliding block 28, the second L-shaped sliding block 28 drives third sliding block 31 in third sliding slot 30 It slides, the second L-shaped sliding block 28 is driven to be moved in the second fixing groove 29 under 32 active force of the 4th spring, reach and fixed convenient for firm The height and position of bandage 4, the purpose worn convenient for different users.

The preferable specific embodiment of the above, only the utility model, but the scope of protection of the utility model is not This is confined to, in the technical scope that any one skilled in the art discloses in the utility model, according to this practicality Novel technical solution and its inventive concept is subject to equivalent substitution or change, should all cover the scope of protection of the utility model it It is interior.

Claims

1. underwater breathing cover, including breathing over body case (1), which is characterized in that the side of the breathing over body case (1) is communicated with out Tracheae (3), described breathe are installed with air-suction cover (2) on over body case (1), and air-suction cover (2) and breathing over body case (1) are internal It is connected, the bottom side of the air-suction cover (2) is installed with link block (6), and the bottom side of the link block (6) offers link slot (7), and link slot (7) is connected with air-suction cover (2), and connecting tube (8), and connecting tube are movably installed in the link slot (7) (8) one end extends to link slot (7) outside, and is installed with spiral air inlet (5), the spiral air inlet (5) far from into One end of tracheae (5) is fixed on bank, and the side of the link block (6) offers mounting groove (9), and the mounting groove (9) is close Sliding eye is offered on the side inner wall of link slot (7), and sliding eye is connected with link slot (7), slided in the sliding eye Locating rod (10) is installed, and the both ends of locating rod (10) are all extended to outside sliding eye, positioning is offered on the connecting tube (8) Hole (12), link slot (7) offer locating slot (13) on the side inner wall far from sliding eye, and the locating rod (10) is positioned at connection One end in slot (7) is extended in locating slot (13), the remotely located slot of the locating rod (10) (13) through location hole (12) One end extend in mounting groove (9), and be installed with mounting blocks, the mounting blocks are fixed close to the side of locating rod (10) The first spring (11) being socketed in locating rod (10) is installed, peace is fixed in the one end of first spring (11) far from mounting blocks Mounted in mounting groove (9) on the side inner wall of link slot (7), the lower section of the mounting groove (9) is equipped with to be connected for firm installation The firm installing mechanism of (8) is taken over, described breathing over body case (1) both sides are installed with fixed block (22), two fixed blocks (22) side being located remotely from each other offers sliding groove (23), and sliding shoe (24), institute are slidably fitted in the sliding groove (23) It states and same screw (26) is rotatablely equipped on the inner wall of both sides up and down of sliding groove (23), offered on the sliding shoe (24) Threaded hole (25), the threaded hole (25) are threadedly coupled with screw (26), and the side of the sliding shoe (24), which is installed with, ties up Band (4), the lower section of the sliding groove (23) are equipped with the regulating mechanism for adjusting bandage (4) height and position.

2. underwater breathing cover according to claim 1, which is characterized in that the firm installing mechanism includes being opened in connection First L-shaped sliding slot (15) of the side of block (6), the first L-shaped sliding slot (15) is positioned at the bottom side of mounting groove (9), and the first L-shaped sliding slot (15) it is connected with mounting groove (9), the first L-shaped sliding block (16), the first L-shaped is slidably fitted in the first L-shaped sliding slot (15) The top of sliding block (16) extends to the first L-shaped sliding slot (15) outside, and the bottom side of the locating rod (10) is offered positioned at mounting groove (9) Interior the first fixing groove (14), the top of the first L-shaped sliding block (16) are slidably mounted in the first fixing groove (14).

3. underwater breathing cover according to claim 2, which is characterized in that the side inner wall of the first L-shaped sliding slot (15) On offer the first sliding groove (18), is slidably fitted with the first sliding block (19) in the first sliding groove (18), the first sliding block (19) Side extends to the first sliding groove (18) outside, and is fixedly mounted on the first L-shaped sliding block (16).

4. underwater breathing cover according to claim 2, which is characterized in that the bottom side inner wall of the first L-shaped sliding slot (15) On be installed with second spring (17), the top of second spring (17) is fixedly mounted on the bottom side of the first L-shaped sliding block (16).

5. underwater breathing cover according to claim 2, which is characterized in that the first L-shaped sliding block (16) is solid far from first The one end for determining slot (14) opens up fluted (20), and slide bar (21), and the one of slide bar (21) are slidably fitted in the groove (20) End extends to the first L-shaped sliding slot (15) outside, and be installed with movable plate, and the movable plate is fixed close to the side of slide bar (21) Fixture block is installed, link block (6) offers multiple card slots close to the side of movable plate, and the fixture block is adapted with card slot.

6. underwater breathing cover according to claim 5, which is characterized in that opened up on the both sides inner wall of the groove (20) There is second sliding slot, the second sliding block is slidably fitted in the second sliding slot, the side of the second sliding block is extended to outside second sliding slot, and It is fixedly mounted on slide bar (21), second sliding block is installed with close to the side of movable plate to be socketed on slide bar (21) Third spring, the one end of third spring far from the second sliding block are fixedly mounted on second sliding slot on the side inner wall of movable plate.

7. underwater breathing cover according to claim 1, which is characterized in that the regulating mechanism includes being opened in fixed block (22) the second L-shaped sliding slot (27) of side, the 2nd L phases sliding slot (27) are connected with sliding groove (23), the second L-shaped sliding slot (27) the second L-shaped sliding block (28) is slidably fitted with, and the both ends of the second L-shaped sliding block (28) all extend to the second L-shaped sliding slot in (27) outside, the bottom side annular of screw (26) is uniformly provided with multiple second fixing grooves (29), the top of the second L-shaped sliding block (28) End is slidably mounted in the second fixing groove (29).

8. underwater breathing cover according to claim 1, which is characterized in that opened on the side inner wall of the second L-shaped sliding slot (27) Equipped with third sliding slot (30), third sliding block (31), the side extension of third sliding block (31) are slidably fitted in third sliding slot (30) To third sliding slot (30) outside, it and is fixedly mounted on the second L-shaped sliding block (28), the bottom side inner wall of the second L-shaped sliding slot (27) On be installed with the 4th spring (32), the top of the 4th spring (32) is fixedly mounted on the bottom side of the second L-shaped sliding block (28).