CN112933452A - Noise reduction, damping and air supply device applied to air breathing mask - Google Patents
Noise reduction, damping and air supply device applied to air breathing mask Download PDFInfo
- Publication number
- CN112933452A CN112933452A CN202110223060.XA CN202110223060A CN112933452A CN 112933452 A CN112933452 A CN 112933452A CN 202110223060 A CN202110223060 A CN 202110223060A CN 112933452 A CN112933452 A CN 112933452A
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- CN
- China
- Prior art keywords
- breathing
- air
- damping
- mask
- air supply
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/02—Masks
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B23/00—Filters for breathing-protection purposes
- A62B23/02—Filters for breathing-protection purposes for respirators
Abstract
The invention relates to the technical field of respirator accessories, in particular to a noise reduction, damping and air supply device applied to an air breathing mask, which is characterized in that: the inside cavity that is equipped with of face guard breathing joint, a water conservancy diversion mouth cover is established outside the air supply hose, is equipped with the damping filter screen of making an uproar that falls in the water conservancy diversion mouth, the water conservancy diversion mouth set up in the face guard breathing joint cavity, water conservancy diversion mouth rear end with face guard breathing joint, water conservancy diversion mouth the place ahead is equipped with flow control damping blade, face guard breathing joint rear end connect the valve gap, its advantage lies in: when using the air respirator, the user can not too big or undersize the breathing air current, but moderate breathing air current lets the user not cause and does not have obvious breathing difference when wearing the device usually when wearing the air respirator breathing completely, lets more comfortable when the wearer breathes, produces the air current noise also to control at reasonable within range when breathing simultaneously.
Description
Technical Field
The invention relates to the technical field of respirator accessories, in particular to a noise reduction, damping and air supply device applied to an air breathing mask.
Background
The air respirator is used as a breathing protection device, is applied to the fields of fire fighting, petroleum, chemical industry, heavy industry, sewage treatment, ships and the like, and is used for escaping from dangerous gas during emergency rescue and relief work and sudden accidents and being worn in an oxygen-deficient environment. The air work in using the gas cylinder when breathing does not rely on external environment gas, supplies the air feed in to the hood through air feeder, supplies the user to breathe, and user of service is when using, and airflow is too big when current air feeder supplies the air to make the user breathe uncomfortable, still accompanies big decibel noise during the use simultaneously, influences user's auditory system.
Disclosure of Invention
The invention aims to overcome the defects that the prior air supply device has overlarge airflow when supplying air, overlarge impact on the face airflow when a user breathes, and simultaneously has large decibel noise when in use, which affects the auditory system of the user.
In order to realize above-mentioned purpose, design one kind and be applied to making an uproar, damping, air feeder that falls of air respirator, including face guard breathing joint and air supply hose, face guard breathing joint connection air supply hose, its characterized in that: the mask breathing connects inside to be equipped with the cavity, a water conservancy diversion mouth cover is established outside the air supply hose, is equipped with the damping filter screen of making an uproar that falls in the water conservancy diversion mouth, the water conservancy diversion mouth set up in the mask breathing connects the cavity, water conservancy diversion mouth rear end with mask breathing connects the joint, water conservancy diversion mouth the place ahead is equipped with flow control damping blade, mask breathing connect the rear end and connect the valve gap.
Preferably, the outer side of the breathing joint of the mask is provided with an external thread, and the valve cover is internally provided with an internal thread matched with the external thread.
Preferably, the inner wall of the rear end of the mask breathing joint is provided with a step structure, and the flow guide nozzle is provided with a boss matched with the step structure.
Preferably, a sealing ring is arranged at the connecting position of the mask breathing joint and the valve cover.
Preferably, the front end of the mask breathing joint is also provided with a sealing ring.
Preferably, the inner wall of the flow guide nozzle is provided with a limiting block, the noise reduction damping filter screen is abutted against the limiting block, and the air supply hose is abutted against the noise reduction damping filter screen.
Preferably, the rear end of the valve cover is provided with a spherical diaphragm.
Compared with the prior art, the invention has the advantages that: when using the air respirator, the user can not too big or undersize the breathing air current, but moderate breathing air current lets the user not cause and does not have obvious breathing difference when wearing the device usually when wearing the air respirator breathing completely, lets more comfortable when the wearer breathes, produces the air current noise also to control at reasonable within range when breathing simultaneously.
Drawings
FIG. 1 is an assembly view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an exploded view of the present invention;
in the figure: 1. the mask comprises a mask breathing joint 2, an air supply hose 3, a flow guide nozzle 4, a noise reduction damping filter screen 5, a flow regulation damping blade 6, a valve cover 7, a sealing ring 8 and a spherical diaphragm.
Detailed Description
The present invention is further described below in conjunction with the following drawings, the structure and principle of which will be apparent to those skilled in the art. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-3, the invention is a noise reduction, damping and air supply device applied to an air breathing mask, comprising a mask breathing joint and an air supply hose, wherein the mask breathing joint is connected with the air supply hose, a cavity is arranged inside the mask breathing joint, a flow guide nozzle is sleeved outside the air supply hose, a noise reduction and damping filter screen is arranged in the flow guide nozzle, the flow guide nozzle is arranged in the cavity of the mask breathing joint, the rear end of the flow guide nozzle is clamped with the mask breathing joint, a flow regulation and damping blade is arranged in front of the flow guide nozzle, and the rear end of the mask breathing joint is connected with a valve cover; the outer side of the mask breathing joint is provided with an external thread, and an internal thread matched with the external thread is arranged in the valve cover; the inner wall of the rear end of the mask breathing joint is provided with a step structure, and the flow guide nozzle is provided with a boss matched with the step structure; a sealing ring is arranged at the connecting position of the mask breathing joint and the valve cover; the front end of the mask breathing joint is also provided with a sealing ring; the inner wall of the flow guide nozzle is provided with a limiting block, the noise reduction damping filter screen is abutted against the limiting block, and the air supply hose is abutted against the noise reduction damping filter screen; the rear end of the valve cover is provided with a spherical diaphragm.
In a preferred embodiment, through the mask breathing joint, the flow control damping blade, the flow guide nozzle, the damping filter screen of making an uproar falls (200 mesh), the air supply device that air feed hose and valve body are constituteed, when the user is using, the air current flows through the damping filter screen of making an uproar falls through the air feed hose, then shunt through the flow guide nozzle, a part flows into the damping blade of flow control and supplies the user to breathe through breathing joint, a part flows into the valve gap through the air vent of flow guide nozzle, when reducing air velocity through spherical diaphragm, the primary air current is the damping filter screen of making an uproar falls first grade unhurried current, when passing through flow control damping blade second grade unhurried current, through flow guide nozzle reposition of flow, the inflow valve gap air current reduces air velocity through spherical diaphragm, the air current finally reaches the effect that reduces.
The invention relates to a noise reduction, damping and air supply device applied to an air breathing mask, which comprises the following specific optimization parts:
1. the sealing ring is arranged on the mask breathing joint of the air supply device and can be directly inserted into the mask air supply joint, so that the connection is convenient and quick, and the picking is convenient;
2. the air flow flows through the noise reduction damping filter screen with 200 meshes of pores through the air supply hose to carry out primary slow flow, flows out of the flow guide nozzle, and carries out secondary slow flow through the flow regulation damping blade;
3. the whole set of gas supply device is composed of a valve cover (the top end is provided with a spherical diaphragm, the bottom end inner side is provided with a thread), a gas supply hose, a noise reduction damping filter screen (200 meshes of pores), a flow guide nozzle, a mask breathing joint, a flow regulation damping blade and a mask breathing joint 2-end sealing ring, noise can be effectively reduced when gas flow is supplied, comfortable expiration flow of a user is provided, and the wearing of the gas supply device is enabled to become comfortable experience.
Claims (7)
1. The utility model provides a be applied to making an uproar, damping, air feeder that falls of air respirator, includes that face guard breathing connects and air supply hose, and face guard breathing connects air supply hose, its characterized in that: the mask breathing connects inside to be equipped with the cavity, a water conservancy diversion mouth cover is established outside the air supply hose, is equipped with the damping filter screen of making an uproar that falls in the water conservancy diversion mouth, the water conservancy diversion mouth set up in the mask breathing connects the cavity, water conservancy diversion mouth rear end with mask breathing connects the joint, water conservancy diversion mouth the place ahead is equipped with flow control damping blade, mask breathing connect the rear end and connect the valve gap.
2. A noise reducing, damping, air supply apparatus for an air breathing mask as claimed in claim 1, wherein: the outer side of the breathing joint of the face mask is provided with external threads, and the valve cover is internally provided with internal threads matched with the external threads.
3. A noise reducing, damping, air supply apparatus for an air breathing mask as claimed in claim 1, wherein: the inner wall of the rear end of the mask breathing joint is provided with a step structure, and the flow guide nozzle is provided with a boss matched with the step structure.
4. A noise reducing, damping, air supply apparatus for an air breathing mask as claimed in claim 2, wherein: and a sealing ring is arranged at the connecting position of the mask breathing joint and the valve cover.
5. A noise reducing, damping, air supply apparatus for an air breathing mask as claimed in claim 1, wherein: the front end of the face mask breathing joint is also provided with a sealing ring.
6. A noise reducing, damping, air supply apparatus for an air breathing mask as claimed in claim 1, wherein: the inner wall of the flow guide nozzle is provided with a limiting block, the noise reduction damping filter screen is abutted against the limiting block, and the air supply hose is abutted against the noise reduction damping filter screen.
7. A noise reducing, damping, air supply apparatus for an air breathing mask as claimed in claim 1, wherein: the rear end of the valve cover is provided with a spherical diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110223060.XA CN112933452A (en) | 2021-03-01 | 2021-03-01 | Noise reduction, damping and air supply device applied to air breathing mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110223060.XA CN112933452A (en) | 2021-03-01 | 2021-03-01 | Noise reduction, damping and air supply device applied to air breathing mask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112933452A true CN112933452A (en) | 2021-06-11 |
Family
ID=76246773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110223060.XA Pending CN112933452A (en) | 2021-03-01 | 2021-03-01 | Noise reduction, damping and air supply device applied to air breathing mask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112933452A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115154946A (en) * | 2022-07-14 | 2022-10-11 | 上海宝亚安全装备股份有限公司 | Noise reduction, damping and air supply device applied to air breathing mask |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6269839B1 (en) * | 1998-08-07 | 2001-08-07 | Resmed (R&D) Limited | Control member for a valve and method for determining fluid flow rate through a valve |
| CN1432416A (en) * | 2002-01-08 | 2003-07-30 | 雷斯梅德有限公司 | Shunt for controlling pressure and flow rate inside CPAP equipment |
| CN2568223Y (en) * | 2002-04-19 | 2003-08-27 | 钮静江 | Straight feeding respirator mask for lifesaving |
| CN1444497A (en) * | 2000-06-16 | 2003-09-24 | 3M创新有限公司 | Pressure regulator for respirator system |
| US20170143927A1 (en) * | 2003-06-18 | 2017-05-25 | Resmed Limited | Respiratory mask system with vent assembly |
| CN109999381A (en) * | 2019-04-12 | 2019-07-12 | 辽宁思科安全装备制造有限公司 | Air respiratorresuscitator supplies valve union |
-
2021
- 2021-03-01 CN CN202110223060.XA patent/CN112933452A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6269839B1 (en) * | 1998-08-07 | 2001-08-07 | Resmed (R&D) Limited | Control member for a valve and method for determining fluid flow rate through a valve |
| CN1444497A (en) * | 2000-06-16 | 2003-09-24 | 3M创新有限公司 | Pressure regulator for respirator system |
| CN1432416A (en) * | 2002-01-08 | 2003-07-30 | 雷斯梅德有限公司 | Shunt for controlling pressure and flow rate inside CPAP equipment |
| CN2568223Y (en) * | 2002-04-19 | 2003-08-27 | 钮静江 | Straight feeding respirator mask for lifesaving |
| US20170143927A1 (en) * | 2003-06-18 | 2017-05-25 | Resmed Limited | Respiratory mask system with vent assembly |
| CN109999381A (en) * | 2019-04-12 | 2019-07-12 | 辽宁思科安全装备制造有限公司 | Air respiratorresuscitator supplies valve union |
Non-Patent Citations (1)
| Title |
|---|
| 戴德沛: "《阻尼技术的工程应用》", 31 October 1991, 清华大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115154946A (en) * | 2022-07-14 | 2022-10-11 | 上海宝亚安全装备股份有限公司 | Noise reduction, damping and air supply device applied to air breathing mask |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210611 |