CN110180103B - Normally closed elastic quick conversion structure of dust and poison filter - Google Patents
Normally closed elastic quick conversion structure of dust and poison filter Download PDFInfo
- Publication number
- CN110180103B CN110180103B CN201910509099.0A CN201910509099A CN110180103B CN 110180103 B CN110180103 B CN 110180103B CN 201910509099 A CN201910509099 A CN 201910509099A CN 110180103 B CN110180103 B CN 110180103B
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- clamping
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- external
- clamping plate
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Classifications
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- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to a normally closed elastic quick conversion structure of a dust and poison filter, belonging to the field of labor protection articles. The device consists of a base, an elastic clamping plate and an external port, wherein an external bayonet is manufactured in the middle of the base, a fixed clamping foot is manufactured in the upper part of the external bayonet, and a chute is manufactured in the lower part of the external bayonet; the middle part of the elastic clamping plate is provided with a round hole, a button is arranged above the round hole, the lower part of the elastic clamping plate is provided with a movable clamping foot, and the elastic clamping plate is inserted on the fixed clamping foot of the base through the button; the invention adopts one fixed clamping foot and two movable clamping feet to clamp the external connection port, can rapidly convert the dustproof and gas-proof filter box, saves time and labor, has good sealing effect and is firmly clamped. The problem of external bayonet socket and gas defense or dustproof box of current protective mask adopt threaded connection, and gas defense or dustproof filter box need long when changing, change inconvenient, and gas defense or dustproof filter box easily rotate on the face guard body, lead to the interface part not sealed is solved.
Description
Technical Field
The invention relates to a normally closed elastic quick conversion structure of a dust and poison filter, belonging to the field of labor protection articles.
Background
With the development of society and the change of life of people, the protective mask is needed to be used in many working, living or rescue places, and the protective mask is needed to be converted or replaced in different use places or with the environmental change of the use places and the increase of wearing time; but the connection of the external bayonet on the mask body of the existing protective mask and the gas-proof or dust-proof box adopts single-head or multi-head threaded connection, so that the time required for converting or replacing the gas-proof or dust-proof box is long, the replacement is very inconvenient, the gas-proof or dust-proof box is easy to rotate on the mask body after the replacement, the sealing of the interface is poor, and a user frequently misuse the gas-proof or dust-proof mask in field use.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a normally closed elastic rapid conversion structure of a dust and poison filter, which can realize rapid conversion of installation or removal of the dust and poison filter and has good sealing performance by fixing an external bayonet through a fixed clamping foot and a movable clamping foot on a base.
The invention realizes the aim through the following technical scheme:
the utility model provides a quick conversion structure of dirt poison filter normal close formula elasticity, it comprises base, elastic clamping plate and external port, its characterized in that: the middle part of the base is provided with an external bayonet, the base at the upper part of the external bayonet is provided with a fixed clamping foot, the section of the fixed clamping foot is of a T-shaped structure, and the base at the lower part of the external bayonet is provided with a chute; the middle part of the elastic clamping plate is provided with a round hole matched with an external bayonet at the middle part of the base, a button is arranged on the elastic clamping plate above the round hole, a T-shaped groove is arranged on the button, two movable clamping legs are arranged at the lower part in the round hole, form an included angle of 120 degrees, are symmetrically distributed by the vertical center line of the round hole, and an elastic sheet is arranged at the lower part of the elastic clamping plate; the upper part of the elastic clamping plate is inserted into the fixed clamping leg of the base through the T-shaped groove on the button and can slide up and down, and the lower part of the elastic clamping plate is inserted into the chute; the external port is provided with a circular clamping connector matched with the external bayonet of the base, the circular clamping connector is provided with three uniformly distributed concave bayonets, and the external port is fixedly clamped on the base through the three uniformly distributed concave bayonets and the fixed clamping feet on the base and the two movable clamping feet on the elastic clamping plate.
The external bayonet of the base is provided with a sealing ring.
The elastic sheet of the elastic clamping plate is arc-shaped, and after being pressed, the elastic sheet is contracted inwards, and after being out of pressure, the elastic sheet is restored to the original state.
After the circular clamping connector of the external port is clamped in the external clamping opening on the base, the fixed clamping foot and the two movable clamping feet are clamped in the concave clamping opening of the circular clamping connector, and the external port cannot rotate on the external clamping opening of the base after being clamped and fixed.
Compared with the prior art, the invention has the following beneficial effects:
this quick conversion structure of dirt poison filter normal close formula elasticity adopts a fixed card foot and two activity card feet to carry out the joint to external port for the mask can install the filter cartridge fast in the use, and can change dustproof gas defense filter cartridge fast, labour saving and time saving, sealed effectual, the joint is firm. The mask solves the problems that the connection of an external bayonet on the mask body of the existing mask and a gas-proof or dust-proof box adopts threaded connection, the gas-proof or dust-proof box is long in time when being converted or replaced, the replacement is inconvenient, the gas-proof or dust-proof box is easy to rotate on the mask body after the replacement, and the sealing of the interface is poor.
Description of the drawings:
FIG. 1 is a schematic diagram of the front view of a normally closed elastic quick-change structure of a dust-toxic filter;
FIG. 2 is a schematic diagram of the front view of the dust filter after the button of the normally closed elastic quick change structure is pressed;
FIG. 3 is a side view of a dust filter normally closed elastic quick change structure and an external port;
FIG. 4 is a side view of a normally closed elastic quick change structure of a dust filter fastened to an external port;
FIG. 5 is a schematic view of a rear-view explosion structure of a normally closed elastic quick-change structure of a dust-toxic filter;
FIG. 6 is a schematic diagram of a front-view explosion structure of a normally closed elastic quick-change structure of a dust-toxic filter;
FIG. 7 is an enlarged schematic view of a fixing clip leg of the base;
fig. 8 is an enlarged schematic view of the button structure of the elastic clamping plate.
In the figure: 1. the base comprises 1-1 parts of fixed clamping feet, 1-2 parts of external bayonet, 1-3 parts of sliding grooves, 2 parts of silica gel mask, 3 parts of elastic clamping boards, 3-1 parts of buttons, 3-2 parts of movable clamping feet, 3-3 parts of elastic sheets, 3-4 parts of round holes, 4 parts of exhalation valves, 4-1 parts of exhalation valve covers, 5 parts of seal rings, 6 parts of external ports, 6-1 parts of round clamping connectors and 6-2 parts of concave bayonet.
The specific embodiment is as follows:
the normally closed elastic quick conversion structure of the dust and toxin filter is composed of a base 1, an elastic clamping plate 3 and an external port 6, wherein an external bayonet 1-2 is manufactured in the middle of the base 1, a fixing clamping foot 1-1 is manufactured on the base 1 at the upper part of the external bayonet 1-2, the section of the fixing clamping foot 1-1 is of a T-shaped structure, a sliding groove 1-3 is manufactured on the base 1 at the lower part of the external bayonet 1-2, and a sealing ring 5 is arranged on the external bayonet 1-2 of the base 1. The middle part of the elastic clamping plate 3 is provided with a round hole 3-4 matched with an external bayonet 1-2 at the middle part of the base 1, a button 3-1 is arranged on the elastic clamping plate 3 above the round hole 3-4, a T-shaped groove is arranged on the button 3-1, two movable clamping legs 3-2 are arranged at the lower part in the round hole 3-4, included angles of 120 degrees are formed between the two movable clamping legs 3-2, the two movable clamping legs are symmetrically distributed along the vertical center line of the round hole 3-4, the lower part of the elastic clamping plate 3 is provided with an elastic sheet 3-3, the elastic sheet 3-3 is in an arc shape, the elastic sheet 3-3 is contracted inwards after being pressed, and the elastic sheet returns to the original shape after being decompressed. The upper part of the elastic clamping plate 3 is inserted into the fixed clamping leg 1-1 of the base 1 through a T-shaped groove on the button 3-1, the button 3-1 is pressed to slide up and down, and the lower part of the elastic clamping plate 3 is inserted into the sliding groove 1-3, so that the sliding of the elastic clamping plate 3 in the sliding groove 1-3 can be limited. The external port 6 is provided with a circular clamping head 6-1 matched with the external clamping opening 1-2 of the base 1, the circular clamping head 6-1 is provided with three uniformly distributed concave clamping openings 6-2, the external port 6 is fixedly clamped on the base 1 through the three uniformly distributed concave clamping openings 6-2 and the fixed clamping leg 1-1 on the base 1 and the two movable clamping legs 3-2 on the elastic clamping plate 3, after the circular clamping head 6-1 of the external port 6 is clamped in the external clamping opening 1-2 on the base 1, the fixed clamping leg 1-1 and the two movable clamping legs 3-2 are clamped in the concave clamping opening 6-2 of the circular clamping head 6-1, and the external port 6 cannot rotate on the external clamping opening 1-2 of the base 1 after being clamped and fixed. The external port 6 can be fixedly connected with a dustproof or gas-proof filter, is manufactured into a whole with the dustproof or gas-proof filter, and is directly arranged on the external bayonet 1-2 of the base 1.
When the normally closed elastic quick conversion structure of the dust and toxin filter is used, a button 3-1 on a base 1 is pressed by one hand, at the moment, an elastic clamping plate 3 slides downwards, so that an elastic sheet 3-3 at the lower part of the elastic clamping plate 3 props against a mounting seat of an exhalation valve 4 at the lower part of the base 1, the elastic sheet 3-3 is in an arc shape, and then contracts inwards after being pressed, two movable clamping feet 3-2 at the lower part of a round hole 3-4 at the middle part of the elastic clamping plate 3 move downwards simultaneously to be as large as the diameter of an external clamping opening 1-2 of the base 1, at the moment, a concave clamping opening 6-2 at the upper part of an external port 6 is inserted into a fixed clamping foot 1-1 of the base 1, the lower part of the external port 6 is pushed, a circular clamping connector 6-1 of the external port 6 enters into the external clamping opening 1-2 of the base 1, a sealing ring 5 is pressed, then the button 3-1 on the base 1 is loosened, and the two movable clamping feet 3-2 at the lower part of the round hole 3-4 are driven to move upwards under the elastic force of the two elastic sheets 3-3, and the two movable clamping feet 3-2 at the lower part of the round hole 3-4 are simultaneously moved upwards, and the concave clamping 6-2 at the lower part of the round clamping opening 6 is connected into the two concave clamping openings 6-1 and the internal clamping opening 6-1. When the external port 6 needs to be removed, the external port 6 can be quickly removed by pressing the button 3-1 of the elastic clamping plate 3 and tilting the lower part of the external port 6 outwards.
The above description is merely a preferred embodiment of the present invention, and the above illustration is not to be construed as limiting the spirit of the present invention in any way, and any simple modification or variation of the above embodiments according to the technical spirit of the present invention, and equivalent embodiments that may be changed or modified to equivalent variations using the above disclosed technical spirit of the present invention, will still fall within the scope of the technical solutions of the present invention, without departing from the spirit and scope of the present invention.
Claims (4)
1. The utility model provides a quick conversion structure of dust and poison filter normal close formula elasticity, it comprises base (1), elastic clamping board (3) and external port (6), its characterized in that: an external bayonet (1-2) is formed in the middle of the base (1), a fixed clamping foot (1-1) is formed on the base (1) at the upper part of the external bayonet (1-2), the section of the fixed clamping foot (1-1) is of a T-shaped structure, and a sliding groove (1-3) is formed in the base (1) at the lower part of the external bayonet (1-2); the middle part of the elastic clamping plate (3) is provided with a round hole (3-4) matched with an external bayonet (1-2) at the middle part of the base (1), the elastic clamping plate (3) above the round hole (3-4) is provided with a button (3-1), the button (3-1) is provided with a T-shaped groove, the lower part in the round hole (3-4) is provided with two movable clamping legs (3-2), the two movable clamping legs (3-2) form an included angle of 120 degrees, the two movable clamping legs are symmetrically distributed by the vertical central line of the round hole (3-4), and the lower part of the elastic clamping plate (3) is provided with an elastic sheet (3-3); the upper part of the elastic clamping plate (3) is inserted into the fixed clamping leg (1-1) of the base (1) through a T-shaped groove on the button (3-1) and can slide up and down, and the lower part of the elastic clamping plate (3) is inserted into the chute (1-3); the external port (6) is provided with a circular clamping connector (6-1) matched with an external clamping opening (1-2) of the base (1), the circular clamping connector (6-1) is provided with three uniformly distributed concave clamping openings (6-2), and the external port (6) is fixedly clamped on the base (1) through the three uniformly distributed concave clamping openings (6-2) and two movable clamping openings (3-2) on the fixed clamping leg (1-1) and the elastic clamping plate (3) on the base (1).
2. The dust filter normally-closed elastic quick-switching structure according to claim 1, wherein: the external bayonet (1-2) of the base (1) is provided with a sealing ring (5).
3. The dust filter normally-closed elastic quick-switching structure according to claim 1, wherein: the elastic sheet (3-3) of the elastic clamping plate (3) is arc-shaped, the elastic sheet (3-3) is contracted inwards after being pressed, and the elastic sheet is restored to the original state after being decompressed.
4. The dust filter normally-closed elastic quick-switching structure according to claim 1, wherein: after the circular clamping connector (6-1) of the external port (6) is clamped in the external clamping opening (1-2) on the base (1), the fixed clamping leg (1-1) and the two movable clamping legs (3-2) are clamped in the concave clamping opening (6-2) of the circular clamping connector (6-1), and the external port (6) cannot rotate on the external clamping opening (1-2) of the base (1) after being clamped and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910509099.0A CN110180103B (en) | 2019-06-13 | 2019-06-13 | Normally closed elastic quick conversion structure of dust and poison filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910509099.0A CN110180103B (en) | 2019-06-13 | 2019-06-13 | Normally closed elastic quick conversion structure of dust and poison filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110180103A CN110180103A (en) | 2019-08-30 |
| CN110180103B true CN110180103B (en) | 2023-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910509099.0A Active CN110180103B (en) | 2019-06-13 | 2019-06-13 | Normally closed elastic quick conversion structure of dust and poison filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110180103B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2691906A1 (en) * | 1992-06-03 | 1993-12-10 | Comasec International Sa | Rapid connector for gas supply to face piece of respiratory mask - comprises intermediate hollow connector body engaged between mask and gas supply, with sprung catch and pin members engaging mask portions. |
| US6298849B1 (en) * | 1999-10-14 | 2001-10-09 | Moldex-Metric, Inc. | Respirator mask with snap in filter cartridge |
| CN101052441A (en) * | 2004-10-29 | 2007-10-10 | 3M创新有限公司 | Respiratory protection device that has rapid threaded clean air source attachment |
| CN101905063A (en) * | 2009-06-04 | 2010-12-08 | 曲凡成 | Electric breathing mask |
| CN102695549A (en) * | 2009-12-16 | 2012-09-26 | 3M创新有限公司 | Unidirectional valves and filtering face masks comprising unidirectional valves |
| CN104147861A (en) * | 2013-05-13 | 2014-11-19 | 伯特利济康雅科夫工业有限公司 | Filter assembly for nuclear, biological and chemical (NBC) air filtration system and method of manufacture thereof |
| JP6172829B1 (en) * | 2016-03-09 | 2017-08-02 | 株式会社重松製作所 | Detachable connector |
| CN207286477U (en) * | 2017-09-29 | 2018-05-01 | 湖北极标安全防护装备有限公司 | A kind of multipurpose list box dust proof and gas defence half face shield |
| CN210205647U (en) * | 2019-06-13 | 2020-03-31 | 荆州思创科技开发有限公司 | Normally closed elastic fast switching structure of dust filter |
-
2019
- 2019-06-13 CN CN201910509099.0A patent/CN110180103B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2691906A1 (en) * | 1992-06-03 | 1993-12-10 | Comasec International Sa | Rapid connector for gas supply to face piece of respiratory mask - comprises intermediate hollow connector body engaged between mask and gas supply, with sprung catch and pin members engaging mask portions. |
| US6298849B1 (en) * | 1999-10-14 | 2001-10-09 | Moldex-Metric, Inc. | Respirator mask with snap in filter cartridge |
| CN101052441A (en) * | 2004-10-29 | 2007-10-10 | 3M创新有限公司 | Respiratory protection device that has rapid threaded clean air source attachment |
| CN101905063A (en) * | 2009-06-04 | 2010-12-08 | 曲凡成 | Electric breathing mask |
| CN102695549A (en) * | 2009-12-16 | 2012-09-26 | 3M创新有限公司 | Unidirectional valves and filtering face masks comprising unidirectional valves |
| CN104147861A (en) * | 2013-05-13 | 2014-11-19 | 伯特利济康雅科夫工业有限公司 | Filter assembly for nuclear, biological and chemical (NBC) air filtration system and method of manufacture thereof |
| JP6172829B1 (en) * | 2016-03-09 | 2017-08-02 | 株式会社重松製作所 | Detachable connector |
| CN207286477U (en) * | 2017-09-29 | 2018-05-01 | 湖北极标安全防护装备有限公司 | A kind of multipurpose list box dust proof and gas defence half face shield |
| CN210205647U (en) * | 2019-06-13 | 2020-03-31 | 荆州思创科技开发有限公司 | Normally closed elastic fast switching structure of dust filter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110180103A (en) | 2019-08-30 |
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