CN114701625A - Water-choking-proof life-saving device in water - Google Patents

Water-choking-proof life-saving device in water Download PDF

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Publication number
CN114701625A
CN114701625A CN202210627029.7A CN202210627029A CN114701625A CN 114701625 A CN114701625 A CN 114701625A CN 202210627029 A CN202210627029 A CN 202210627029A CN 114701625 A CN114701625 A CN 114701625A
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CN
China
Prior art keywords
plate
mask body
gear
water
connecting block
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Pending
Application number
CN202210627029.7A
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Chinese (zh)
Inventor
赵帅
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Weihai Ocean Vocational College
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Weihai Ocean Vocational College
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Publication date
Application filed by Weihai Ocean Vocational College filed Critical Weihai Ocean Vocational College
Priority to CN202210627029.7A priority Critical patent/CN114701625A/en
Publication of CN114701625A publication Critical patent/CN114701625A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63CLAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C9/00Life-saving in water

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

The invention is suitable for the lifesaving field, has provided a kind of anti-choking aquatic life saving equipment, including: the face guard body, be provided with the connecting block on the face guard body, still include: the gas flow transmission assembly is arranged on the mask body and is used for discharging residual water in the mask body while controlling oxygen to enter the mask body in a one-way mode; automatic chucking subassembly is installed on the connecting block, after face guard body and facial laminating, automatic chucking subassembly is used for the pulling bandage to fix. This prevent chocking aquatic life saving equipment can make the complete laminating of face guard body automatically in the face, avoids the laminating not hard up, more can not lead to rivers to enter into the face guard body inside, prevents to chock the circumstances such as water in the use, also can guarantee the stability of air current transmission subassembly in the use, and air current transmission subassembly can prevent the rivers backward flow, discharges completely until the water in the face guard body, realizes the effect of chocking water, uses safelyr, and rescue effectually.

Description

Life-saving device for preventing water choking in water
Technical Field
The invention belongs to the field of lifesaving, and particularly relates to a lifesaving device for preventing water choking in water.
Background
Lifesaving devices are devices for rescuing people from a predicament at a time of crisis, such as lifesaving hammers on buses, fire extinguishers and AEDs (automatic External Defibrillator/automatic External Defibrillator) in public places, life buoys provided by cruise ships and swimming pools, and the like, which are regarded as broad life saving devices.
Taking underwater rescue as an example, rescue ships, life buoys, life jackets and other equipment can provide safety first-aid guarantee when people drown or other emergencies occur, harm is reduced to the maximum extent, and the most important thing in the underwater rescue process is a breathing mask, so that the rescuers and rescuees can breathe normally underwater.
Most of existing underwater life saving masks do not have the function of automatic drainage, people need to pay attention to the breathing mode of mouth and nose all the time when using the underwater life saving mask, the situation of water choking is easy to happen carelessly, the safety is poor, in the wearing process, most of the existing underwater life saving masks are manually fixed in a mode of fastening a binding belt, the wearing stability of the existing underwater life saving mask is limited, the loosening situation is easy to happen, water flow is easy to suck, and the safety is low.
Disclosure of Invention
The embodiment of the invention aims to provide an anti-water-choking underwater lifesaving device, which aims to solve the problems that most of the existing underwater lifesaving masks do not have the function of automatic drainage, the breathing mode of mouth and nose needs to be paid attention to constantly during use, the water choking condition is easy to occur with little attention, the safety is poor, and most of underwater lifesaving masks are fixed manually in the wearing process by fastening a binding band, so that the wearing stability is limited, the looseness condition is easy to occur, the water flow is easy to suck, and the safety is low.
The embodiment of the invention is realized in such a way that the life saving device in the anti-choking water comprises: the face guard body, be provided with the connecting block on the face guard body, be provided with the bandage on the connecting block, antichoke aquatic life saving equipment still includes:
the gas flow transmission assembly is arranged on the mask body and is used for discharging residual water in the mask body while controlling oxygen to enter the mask body in a one-way mode;
the automatic clamping assembly is mounted on the connecting block and used for automatically pulling the binding band to fix after the mask body is attached to the face.
Preferably, the airflow transfer assembly comprises:
the unidirectional air inlet assembly is arranged on one side of the mask body and is used for controlling oxygen to flow into the mask body in a unidirectional mode;
the one-way air outlet assembly is arranged on the other side of the mask body and used for discharging waste gas and residual water flow out of the mask body during expiration and preventing backflow.
Preferably, the one-way intake assembly includes:
the air inlet pipe is arranged on the mask body, and one side of the air inlet pipe is connected with the oxygen interface;
the limiting plate is arranged in the air inlet pipe, an air guide port is formed in the limiting plate, and a sealing baffle is arranged on one side of the air guide port;
the first closing plate is rotatably connected to the limiting plate and is matched with the sealing baffle;
the arc-shaped groove is formed in the limiting plate, an arc-shaped clamping plate is arranged inside the arc-shaped groove in a sliding mode, the arc-shaped clamping plate is connected with the first sealing plate, and a first spring is arranged between the arc-shaped clamping plate and the arc-shaped groove.
Preferably, the unidirectional air outlet assembly comprises:
the air outlet pipe is arranged on the mask body, and a control cavity is arranged in the air outlet pipe;
the sliding column is connected to the side part of the control cavity in a sliding mode, one end of the sliding column is provided with a rubber plate, and the rubber plate is matched with the inner wall of the control cavity;
and the second spring is sleeved on the sliding column and is matched with the rubber plate and the inner wall of the control cavity.
Preferably, the automatic clamping assembly comprises:
the clamping block is arranged on the side part of the connecting block, a sliding soft plate is connected in the clamping block in a sliding manner, and the sliding soft plate is connected with the binding band;
and the driving assembly is arranged on the connecting block and is used for controlling the sliding soft plate to slide in the clamping block.
Preferably, the drive assembly comprises:
the groove body is arranged inside the connecting block, a compression column is arranged inside the groove body in a sliding mode, and a pressing plate is arranged at one end of the compression column;
the main motor is arranged on the connecting block, a driving button is arranged in the groove body, and the driving button is connected with the main motor;
the first gear is connected to the output end of the main motor, the connecting block is also rotatably connected with a second gear, and the first gear and the second gear are meshed with each other;
the third gear is rotatably connected inside the fixture block, and transmission belts are sleeved among the third gear, the first gear and the second gear;
and the toothed plate is arranged on the side part of the sliding soft plate and is matched with the third gear.
Preferably, the number of the automatic clamping assemblies is two, and the automatic clamping assemblies are symmetrically arranged on two sides of the mask body.
The anti-water-choking lifesaving device provided by the embodiment of the invention has the following beneficial effects:
when this antichoke aquatic life saving equipment uses, directly detain the face guard body in oronasal department, then can the automatic chucking subassembly operation of direct drive to the action of pushing down of face guard body, then automatic chucking subassembly can tighten up the bandage, make the laminating that the face guard body can be complete at the face, avoid the laminating not hard up, more can not lead to rivers to enter into inside the face guard body, prevent that it from appearing the circumstances such as choke water in the use, also can guarantee the stability of air current transmission subassembly in the use. Treat the face guard body and wear the completion back, contain the entry with airflow transmission subassembly, inhale through the oral area earlier, guarantee the breathing in of oxygen, the rethread nasal part exhales, then the gas of exhalation can increase the atmospheric pressure in the face guard body, can utilize airflow transmission subassembly to discharge the water in the face guard body this moment, airflow transmission subassembly can prevent rivers backward flow, water in the face guard body is discharged completely until, realize the effect of antichoking water, it is safer to use, rescue effectually.
Drawings
Fig. 1 is a schematic structural view of a life saving device for preventing water choking provided by an embodiment of the invention;
FIG. 2 is a top view of a life saving device for use in preventing water from being choked according to an embodiment of the present invention;
FIG. 3 is a partial side view of FIG. 2;
FIG. 4 is an internal side view of a life saving device for preventing water from being choked according to an embodiment of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4 at A;
FIG. 6 is a partial enlarged view of the portion B in FIG. 4;
fig. 7 is a partially enlarged view at C in fig. 4.
In the drawings: 1-a mask body; 2, connecting blocks; 3-binding a belt; 4-an airflow transfer assembly; 41-air inlet pipe; 42-a limiting plate; 43-a gas-guide port; 44-sealing baffle; 45-a first closing plate; 46-an arc-shaped slot; 47-arc pallet; 48-a first spring; 49-air outlet pipe; 410-a control chamber; 411-sliding column; 412-rubber sheet; 413-a second spring; 5-automatic clamping assembly; 51-a cartridge; 52-sliding soft board; 54-a trough body; 55-a compression column; 56-a pressure plate; 57-main motor; 58-an actuation button; 59-a first gear; 510-a second gear; 511-a third gear; 512-conveying belt; 513-toothed plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
As shown in fig. 1, fig. 2 and fig. 4, in the embodiment of the invention, the life saving device for preventing water choking comprises: face guard body 1, be provided with connecting block 2 on the face guard body 1, be provided with bandage 3 on the connecting block 2, life saving equipment still includes in the anti-choke aquatic:
the air flow transmission assembly 4 is arranged on the mask body 1, and the air flow transmission assembly 4 is used for discharging residual water in the mask body 1 while controlling oxygen to enter the mask body 1 in a one-way mode;
automatic chucking subassembly 5 installs on connecting block 2, after face guard body 1 and facial laminating, automatic chucking subassembly 5 is used for automatic pulling bandage 3 to fix.
When this prevent chocking aquatic life saving equipment and use, directly detain face guard body 1 in the mouth nose department, then can the automatic chucking subassembly 5 operation of direct drive to the action of pushing down of face guard body 1, then automatic chucking subassembly 5 can tighten up bandage 3, make the laminating that face guard body 1 can be complete at the face, avoid the laminating not hard up, more can not lead to rivers to enter into face guard body 1 inside, prevent it and chock the circumstances such as water in the use, also can guarantee the stability of air current transmission subassembly 4 in the use. Treat that face guard body 1 wears the completion back, contain the entry with air current transmission assembly 4, breathe in through the oral area earlier, utilize air current transmission assembly 4's intake pipe 41 to guarantee the breathing in of oxygen, the rethread nose exhales, then the gas of exhalation can increase the atmospheric pressure in the face guard body 1, can utilize air current transmission assembly 4's outlet duct 49 to discharge the water in the face guard body 1 this moment, and air current transmission assembly 4 can prevent the rivers backward flow, until the water in the face guard body 1 discharges completely, realize the effect of antichoke water, it is safer to use, rescue effectually.
As shown in fig. 1 to 7, in the embodiment of the present invention, the airflow transfer assembly 4 includes:
the unidirectional air inlet assembly is arranged on one side of the mask body 1 and is used for controlling oxygen to flow into the mask body 1 in a unidirectional mode;
the one-way air outlet assembly is arranged on the other side of the mask body 1, and when the mask body exhales, the one-way air outlet assembly is used for discharging waste gas and residual water flow out of the mask body 1 and preventing backflow.
As shown in fig. 1 to 7, in an embodiment of the present invention, the unidirectional air intake assembly includes:
the air inlet pipe 41 is arranged on the mask body 1, and one side of the air inlet pipe 41 is connected with an oxygen interface;
a limiting plate 42 installed inside the air inlet pipe 41, wherein an air guide opening 43 is formed in the limiting plate 42, and a sealing baffle 44 is arranged on one side of the air guide opening 43;
a first closing plate 45 rotatably connected to the limiting plate 42, wherein the first closing plate 45 is matched with the sealing baffle 44;
the limiting plate 42 is provided with an arc-shaped slot 46, an arc-shaped clamping plate 47 is arranged in the arc-shaped slot 46 in a sliding mode, the arc-shaped clamping plate 47 is connected with the first sealing plate 45, and a first spring 48 is arranged between the arc-shaped clamping plate 47 and the arc-shaped slot 46.
During the use, contain intake pipe 41 one end in the mouth earlier, inhale through the oral area afterwards, then the action of breathing in can make the inside atmospheric pressure of intake pipe 41 reduce, inhale first closing plate 45, make first closing plate 45 take place rotatoryly, stretch first spring 48, then oxygen can get into in the intake pipe 41 by the gas guide port 43 this moment, realize the effect of oxygen uptake, when exhaling, if the user uses the mouth to exhale, then because the atmospheric pressure in the intake pipe 41 resumes, first spring 48 can pull back first closing plate 45, seal gas guide port 43, lead to gaseous unable backward flow, then the user will unable exhale through the oral area this moment, can remind the user to exhale through the nose, in order to ensure device normal use.
As shown in fig. 1 to 7, in an embodiment of the present invention, the unidirectional air outlet assembly includes:
the air outlet pipe 49 is arranged on the mask body 1, and a control cavity 410 is arranged in the air outlet pipe 49;
the sliding column 411 is connected to the side part of the control cavity 410 in a sliding manner, one end of the sliding column 411 is provided with a rubber plate 412, and the rubber plate 412 is matched with the inner wall of the control cavity 410;
and the second spring 413 is sleeved on the sliding column 411 and is matched with the rubber plate 412 and the inner wall of the control cavity 410.
During the use, when the user exhales through the nose, can increase the inside atmospheric pressure of face guard body 1, then atmospheric pressure can promote rubber slab 412 this moment, make slip post 411 move down, then outlet duct 49 can be in unobstructed state this moment, and because gaseous density is less than liquid, then the gas of exhalation can be in the upper end of face guard body 1, rivers can discharge through outlet duct 49 of lower extreme, and after exhaling, second spring 413 can promote slip post 411 and reset, make outlet duct 49 continue to be in the encapsulated situation, prevent that external water from flowing back and entering face guard body 1, realize the effect of one-way drainage, exhale several times repeatedly, can arrange the water in the face guard body 1 completely, prevent the condition of appearing the water in the follow-up use chocking, the security is high.
As shown in fig. 1 to 7, in the embodiment of the present invention, the automatic clamping assembly 5 includes:
a clamping block 51 installed at the side of the connecting block 2, wherein a sliding soft plate 52 is connected in the clamping block 51 in a sliding manner, and the sliding soft plate 52 is connected with the binding band 3;
and the driving assembly is installed on the connecting block 2 and is used for controlling the sliding soft plate 52 to slide in the fixture block 51.
As shown in fig. 1 to 7, in an embodiment of the present invention, the driving assembly includes:
the groove body 54 is arranged inside the connecting block 2, a compression column 55 is arranged inside the groove body 54 in a sliding mode, and a pressing plate 56 is arranged at one end of the compression column 55;
the main motor 57 is installed on the connecting block 2, a driving button 58 is arranged in the groove body 54, and the driving button 58 is connected with the main motor 57;
the first gear 59 is connected to the output end of the main motor 57, the connecting block 2 is also rotatably connected with a second gear 510, and the first gear 59 and the second gear 510 are meshed with each other;
the third gear 511 is rotatably connected inside the fixture block 51, and a transmission belt 512 is sleeved between the third gear 511 and the first gear 59 and between the third gear 511 and the second gear 510;
and a toothed plate 513 installed at the side of the sliding soft plate 52, wherein the toothed plate 513 is matched with the third gear 511.
During the use, cover face guard body 1 in the mouth nose department, and push down, then clamp plate 56 can contact with user's cheek, and promote compression post 55 and remove, make drive button 58 pressed, then main motor 57 can operate this moment, drive first gear 59 and second gear 510 and be the counter-rotation, and then drive third gear 511 through transmission band 512 and rotate, when third gear 511 is rotatory, can drive slip soft board 52 through pinion rack 513 and slide, tighten up bandage 3, make face guard body 1 can closely laminate in the face, avoid not hard up.
As shown in fig. 1 to 7, in the embodiment of the present invention, the number of the automatic fastening assemblies 5 is two, and the automatic fastening assemblies are symmetrically disposed at both sides of the mask body 1.
In conclusion, when the anti-water-choking lifesaving device is used, the mask body 1 is directly buckled at the mouth and nose, the downward pressing action of the mask body 1 can directly drive the automatic clamping assembly 5 to operate, the automatic clamping assembly 5 can tighten up the bandage 3, the mask body 1 can be completely attached to the face, the attachment is avoided being loosened, water flow cannot enter the mask body 1, the situations of choking and the like in the using process are prevented, and the stability of the airflow transmission assembly 4 in the using process can be ensured. Treat that face guard body 1 wears the completion back, contain the entry with air current transmission assembly 4, breathe in through the oral area earlier, utilize air current transmission assembly 4's intake pipe 41 to guarantee the breathing in of oxygen, the rethread nose exhales, then the gas of exhalation can increase the atmospheric pressure in the face guard body 1, can utilize air current transmission assembly 4's outlet duct 49 to discharge the water in the face guard body 1 this moment, and air current transmission assembly 4 can prevent the rivers backward flow, until the water in the face guard body 1 discharges completely, realize the effect of antichoke water, it is safer to use, rescue effectually.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (7)

1. An anti-choking life-saving device in water, comprising: the face guard body, be provided with the connecting block on the face guard body, be provided with the bandage on the connecting block, its characterized in that, antichoke aquatic life saving equipment still includes:
the air flow transmission assembly is arranged on the mask body and is used for discharging residual water in the mask body when oxygen is controlled to enter the mask body in a one-way mode;
the automatic clamping assembly is mounted on the connecting block, and is used for automatically pulling the binding band and fixing the binding band after the mask body is attached to the face.
2. The anti-choking water life saving device of claim 1, wherein the airflow transmission assembly comprises:
the unidirectional air inlet assembly is arranged on one side of the mask body and is used for controlling oxygen to flow into the mask body in a unidirectional mode;
the one-way air outlet assembly is arranged on the other side of the mask body, and when the mask body exhales, the one-way air outlet assembly is used for discharging waste gas and residual water out of the mask body and preventing backflow.
3. The life saving equipment of claim 2, wherein said one-way air intake assembly comprises:
the air inlet pipe is arranged on the mask body, and one side of the air inlet pipe is connected with the oxygen interface;
the limiting plate is arranged in the air inlet pipe, an air guide port is formed in the limiting plate, and a sealing baffle is arranged on one side of the air guide port;
the first closing plate is rotatably connected to the limiting plate and is matched with the sealing baffle;
the arc-shaped groove is formed in the limiting plate, an arc-shaped clamping plate is arranged in the arc-shaped groove in a sliding mode, the arc-shaped clamping plate is connected with the first sealing plate, and a first spring is arranged between the arc-shaped clamping plate and the arc-shaped groove.
4. The life saving equipment in water of chocking of claim 2, wherein said one-way air outlet assembly comprises:
the air outlet pipe is arranged on the mask body, and a control cavity is arranged in the air outlet pipe;
the sliding column is connected to the side part of the control cavity in a sliding mode, one end of the sliding column is provided with a rubber plate, and the rubber plate is matched with the inner wall of the control cavity;
and the second spring is sleeved on the sliding column and is matched with the rubber plate and the inner wall of the control cavity.
5. The life saving equipment of claim 1, wherein said automatic clamping assembly comprises:
the clamping block is arranged on the side part of the connecting block, a sliding soft plate is connected in the clamping block in a sliding manner, and the sliding soft plate is connected with the binding band;
and the driving assembly is arranged on the connecting block and is used for controlling the sliding soft plate to slide in the clamping block.
6. The life saving device of claim 5, wherein said drive assembly comprises:
the groove body is arranged inside the connecting block, a compression column is arranged inside the groove body in a sliding mode, and a pressing plate is arranged at one end of the compression column;
the main motor is arranged on the connecting block, a driving button is arranged in the groove body, and the driving button is connected with the main motor;
the first gear is connected to the output end of the main motor, the connecting block is also rotatably connected with a second gear, and the first gear and the second gear are meshed with each other;
the third gear is rotatably connected inside the fixture block, and transmission belts are sleeved among the third gear, the first gear and the second gear;
and the toothed plate is arranged on the side part of the sliding soft plate and is matched with the third gear.
7. The life saving equipment of claim 1, wherein the number of the automatic clamping components is two, and the automatic clamping components are symmetrically arranged on two sides of the mask body.
CN202210627029.7A 2022-06-06 2022-06-06 Water-choking-proof life-saving device in water Pending CN114701625A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210627029.7A CN114701625A (en) 2022-06-06 2022-06-06 Water-choking-proof life-saving device in water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210627029.7A CN114701625A (en) 2022-06-06 2022-06-06 Water-choking-proof life-saving device in water

Publications (1)

Publication Number Publication Date
CN114701625A true CN114701625A (en) 2022-07-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210627029.7A Pending CN114701625A (en) 2022-06-06 2022-06-06 Water-choking-proof life-saving device in water

Country Status (1)

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CN (1) CN114701625A (en)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007005005U1 (en) * 2007-04-03 2007-06-06 Qbas Co., Ltd. Face mask for e.g. swimming, has head band for fastening soft mask and glass frame to face, and nose section with expandable structure that is expanded when flanks at nose section are pressed, where frame accommodates viewing glass
US7484646B1 (en) * 2004-09-23 2009-02-03 The United States Of America As Represented By The Secretary Of The Navy Dive mask index bracket
CN202156530U (en) * 2011-07-14 2012-03-07 深圳市环球博洋机电科技有限公司 Breathing mask with internal mouthpiece connected by elastic pipe
CN202244042U (en) * 2011-08-30 2012-05-30 浙江理工大学 Novel mouth-biting diving mask
CN106741751A (en) * 2017-01-06 2017-05-31 谢志勇 Integral type snorkel mask and preventing snorkel mask lens atomization method
CN206318002U (en) * 2016-12-21 2017-07-11 广东元和鑫龙游艇制造有限公司 A kind of self-adjustable luntttes
CN207875950U (en) * 2018-02-28 2018-09-18 深圳市中天潜水装备有限公司 A kind of rebreather
CN211139624U (en) * 2019-10-14 2020-07-31 南通荣威娱乐用品有限公司 Diving full face mask
CN112546478A (en) * 2021-01-12 2021-03-26 成都一路御见科技有限公司 Novel air filtering face mask
CN213722884U (en) * 2020-11-05 2021-07-20 江苏美信光电科技有限公司 Welding mask with automatic tightening function
CN214713031U (en) * 2020-12-15 2021-11-16 临沂万诺光电科技有限公司 Wearable intelligent solar energy-adjustable automatic light-changing electric welding mask
CN216536465U (en) * 2021-07-12 2022-05-17 济南国科医工科技发展有限公司 Controllable pressure breathing mask device

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7484646B1 (en) * 2004-09-23 2009-02-03 The United States Of America As Represented By The Secretary Of The Navy Dive mask index bracket
DE202007005005U1 (en) * 2007-04-03 2007-06-06 Qbas Co., Ltd. Face mask for e.g. swimming, has head band for fastening soft mask and glass frame to face, and nose section with expandable structure that is expanded when flanks at nose section are pressed, where frame accommodates viewing glass
CN202156530U (en) * 2011-07-14 2012-03-07 深圳市环球博洋机电科技有限公司 Breathing mask with internal mouthpiece connected by elastic pipe
CN202244042U (en) * 2011-08-30 2012-05-30 浙江理工大学 Novel mouth-biting diving mask
CN206318002U (en) * 2016-12-21 2017-07-11 广东元和鑫龙游艇制造有限公司 A kind of self-adjustable luntttes
CN106741751A (en) * 2017-01-06 2017-05-31 谢志勇 Integral type snorkel mask and preventing snorkel mask lens atomization method
CN207875950U (en) * 2018-02-28 2018-09-18 深圳市中天潜水装备有限公司 A kind of rebreather
CN211139624U (en) * 2019-10-14 2020-07-31 南通荣威娱乐用品有限公司 Diving full face mask
CN213722884U (en) * 2020-11-05 2021-07-20 江苏美信光电科技有限公司 Welding mask with automatic tightening function
CN214713031U (en) * 2020-12-15 2021-11-16 临沂万诺光电科技有限公司 Wearable intelligent solar energy-adjustable automatic light-changing electric welding mask
CN112546478A (en) * 2021-01-12 2021-03-26 成都一路御见科技有限公司 Novel air filtering face mask
CN216536465U (en) * 2021-07-12 2022-05-17 济南国科医工科技发展有限公司 Controllable pressure breathing mask device

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Application publication date: 20220705

RJ01 Rejection of invention patent application after publication