CN210205647U - Normally closed elastic fast switching structure of dust filter - Google Patents
Normally closed elastic fast switching structure of dust filter Download PDFInfo
- Publication number
- CN210205647U CN210205647U CN201920883633.XU CN201920883633U CN210205647U CN 210205647 U CN210205647 U CN 210205647U CN 201920883633 U CN201920883633 U CN 201920883633U CN 210205647 U CN210205647 U CN 210205647U
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- bayonet
- base
- external
- elastic
- clamping plate
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Abstract
The utility model relates to a dust and poison filter normal close formula elasticity quick switching structure belongs to the labour protection articles for use field. The device comprises 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 pin is manufactured at the upper part of the external bayonet, and a sliding groove is manufactured at the lower part of the external bayonet; a round hole is formed in the middle of the elastic clamping plate, a button is formed above the round hole, a movable clamping pin is formed at the lower part of the round hole, an elastic sheet is formed at the lower part of the elastic clamping plate, and the elastic clamping plate is inserted into a fixed clamping pin of the base through the button; the utility model discloses a fixed card foot and two activity card feet carry out the joint to external port, can change dustproof gas defense filter box fast, labour saving and time saving, and is sealed effectual, and the joint is firm. The problem of current protective face mask's external bayonet socket and gas-defense or dust-proof box adopt threaded connection, and the time that gas-defense or dust-proof filter cartridge needs when changing is long, and it is inconvenient to change, and gas-defense or dust-proof filter cartridge easily rotates on the face guard body, leads to the kneck not sealed is solved.
Description
Technical Field
The utility model relates to a dust and poison filter normal close formula elasticity quick switching structure belongs to the labour protection articles for use field.
Background
With the development of society and the change of life of people, protective masks are needed to be used in a plurality of working, living or rescuing places, and the gas-proof or dust-proof filter boxes need to be converted or replaced due to the fact that the protective masks are used in different using places or along with the environmental change and the increase of wearing time of the using places; however, the connection between 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, the gas-proof or dust-proof filter box not only needs long time when being converted or replaced, but also is very inconvenient to replace, the gas-proof or dust-proof filter box is easy to rotate on the mask body after being replaced, the sealing of the interface is poor, and the user often makes mistakes when using the mask on site.
Disclosure of Invention
An object of the utility model is to the not enough of above-mentioned prior art, provide one kind through the fixed card foot on the base with the activity card foot fix external bayonet socket, can realize the installation to dustproof or gas defense filter or take off and carry out the quick switching, and the dust poison filter normal close formula elasticity quick switching structure that sealing performance is good.
The utility model discloses a realize above-mentioned purpose through following technical scheme:
the utility model provides a dirt poison filter normal close formula elasticity quick switching structure, it comprises base, elasticity cardboard and external port, its characterized in that: an external bayonet is manufactured in the middle of the base, a fixing clamping pin is manufactured on the base at the upper part of the external bayonet, the cross section of the fixing clamping pin is of a T-shaped structure, and a sliding groove is manufactured on the base at the lower part of the external bayonet; a round hole matched with an external bayonet in the middle of the base is formed in the middle of the elastic clamping plate, a button is formed on the elastic clamping plate above the round hole, a T-shaped groove is formed in the button, two movable clamping pins are formed at the lower part in the round hole, an included angle of 120 degrees is formed between the two movable clamping pins and are symmetrically distributed by the vertical center line of the round hole, and elastic pieces are formed at the lower part of the elastic clamping plate; the upper part of the elastic clamping plate is inserted on the fixed clamping foot 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 in the sliding groove; the external port on make and connect the circular joint with the external bayonet socket matched with of base, the preparation has the spill bayonet socket of three equipartition on the circular joint, external port is fixed on the base through the spill bayonet socket of three equipartition and the fixed card foot on the base and two movable card feet joint on the elasticity cardboard.
And a sealing ring is arranged on an external bayonet of the base.
The elastic sheet of the elastic clamping plate is arc-shaped, and the elastic sheet contracts inwards after being pressed and recovers to the original state after being decompressed.
The circular clamping joint of external port in the external interface of dress on the base in the back, fixed card foot and two movable card foot chucking are in circular clamping joint's spill bayonet socket, then can not rotate on the external interface of base after external port joint is fixed.
Compared with the prior art, the utility model following beneficial effect has:
this dirt poison filter normal close formula elasticity quick switching structure 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, and sealed effectual, the joint is firm. The problem of external bayonet socket on the face guard body of current protective face mask and gas defense or dust-proof box's connection adopt threaded connection, gas defense or dust-proof filter box not only need when changing or changing long, it is very inconvenient to change moreover, and gas defense or dust-proof filter box easily rotates on the face guard body after the change, leads to the kneck not sealed well is solved.
Description of the drawings:
FIG. 1 is a schematic front view of a normally closed elastic fast switching structure of a dust filter;
FIG. 2 is a schematic diagram of a normally closed elastic quick switching structure of a dust filter in a front view after a button is pressed;
FIG. 3 is a side view of a normally closed flexible quick-change structure and an external port of a dust filter;
FIG. 4 is a side view of the normally closed elastic quick-change mechanism of the dust filter fastened to an external port;
FIG. 5 is a schematic diagram of a rear view explosion structure of a normally closed elastic rapid conversion structure of a dust filter;
FIG. 6 is a schematic diagram of a front view explosion configuration of a normally closed elastic rapid switching configuration of a dust filter;
FIG. 7 is an enlarged view of the fixing clip of the base;
fig. 8 is an enlarged structure diagram of the button of the elastic clamping plate.
In the figure: 1. the device comprises a base, 1-1 parts of a fixed clamping foot, 1-2 parts of an external bayonet, 1-3 parts of a sliding groove, 2 parts of a silica gel mask, 3 parts of an elastic clamping plate, 3-1 parts of a button, 3-2 parts of a movable clamping foot, 3-3 parts of an elastic sheet, 3-4 parts of a round hole, 4 parts of an expiratory valve, 4-1 parts of an expiratory valve cover, 5 parts of a sealing ring, 6 parts of an external port, 6-1 parts of a round clamping connector, 6-2 parts of a concave bayonet.
The specific implementation mode is as follows:
the normally closed elastic quick switching structure of the dust filter comprises 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 pin 1-1 is manufactured on the base 1 at the upper part of the external bayonet 1-2, the cross section of the fixing clamping pin 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 mounted 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 in 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 pins 3-2 are arranged at the lower part in the round hole 3-4, an included angle of 120 degrees is formed between the two movable clamping pins 3-2 and is symmetrically distributed by 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 arc-shaped, the elastic sheet 3-3 contracts inwards after being pressed, and returns to the original shape after being pressed. The upper part of the elastic clamping plate 3 is inserted into the fixed clamping foot 1-1 of the base 1 through the T-shaped groove on the button 3-1, the elastic clamping plate can slide up and down by pressing the button 3-1, and the lower part of the elastic clamping plate 3 is inserted into the sliding groove 1-3, so that the effect of limiting the elastic clamping plate 3 to slide in the sliding groove 1-3 can be achieved. The external port 6 is provided with a circular bayonet 6-1 matched with the external bayonet 1-2 of the base 1, the circular bayonet 6-1 is provided with three uniformly distributed concave bayonets 6-2, the external port 6 is clamped and fixed on the base 1 with a fixed bayonet 1-1 on the base 1 and two movable bayonets 3-2 on the elastic bayonets 3 through the three uniformly distributed concave bayonets 6-2, after the circular bayonet 6-1 of the external port 6 is clamped and fixed in the external bayonet 1-2 on the base 1, the fixed bayonet 1-1 and the two movable bayonets 3-2 are clamped and fixed in the concave bayonet 6-2 of the circular bayonet 6-1, and after the external port 6 is clamped and fixed, the external port 6 cannot rotate on the external bayonet 1-2 of the base 1. The external port 6 can be fixedly connected with a dustproof or gas-defense filter, is manufactured into a whole with the dustproof or gas-defense filter, and is directly arranged on the external bayonet 1-2 of the base 1.
When the normally closed elastic quick switching structure of the dust 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, an elastic sheet 3-3 at the lower part of the elastic clamping plate 3 is propped against a mounting seat of an expiratory valve 4 at the lower part of the base 1, because the elastic sheet 3-3 is arc-shaped, the elastic sheet 3-3 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 simultaneously move downwards and move downwards to be as large as the diameter of an external bayonet 1-2 of the base 1, at the moment, a concave bayonet 6-2 at the upper part of an external port 6 is inserted into a fixed clamping foot 1-1 of the base 1, and a circular clamping head 6-1 of the external port 6 enters into the external bayonet 1-2 of the base 1 and compresses a, then the button 3-1 on the base 1 is loosened, the elastic clamping plate 3 moves upwards under the elastic action of the two elastic sheets 3-3, the two movable clamping feet 3-2 at the lower part of the round hole 3-4 are driven to move upwards simultaneously to be clamped into the two concave bayonets 6-2 at the lower part of the round bayonet joint 6-1, and then the base 1 and the external port 6 can be connected and fixed. When the external port 6 needs to be taken down, the button 3-1 of the elastic clamping plate 3 is pressed down to tilt the lower part of the external port 6 outwards, and then the external port 6 can be taken down quickly.
The above description is only a preferred embodiment of the present invention, and the above illustration does not limit the essence of the present invention in any form, and any simple modification or variation of the above embodiments based on the technical essence of the present invention and equivalent embodiments which may be changed or modified to equivalent variations by using the technical essence of the present invention by those of ordinary skill in the art after reading the present description still belong to the technical solution of the present invention without departing from the essence and scope of the present invention.
Claims (4)
1. The utility model provides a dirt poison filter normal close formula elasticity quick switching structure, it comprises base (1), elasticity cardboard (3) and external port (6), its characterized in that: an external bayonet (1-2) is manufactured in the middle of the base (1), a fixed clamping pin (1-1) is manufactured on the base (1) at the upper part of the external bayonet (1-2), the cross section of the fixed clamping pin (1-1) is of a T-shaped structure, and a sliding groove (1-3) is manufactured on the base (1) at the lower part of the external bayonet (1-2); a round hole (3-4) matched with an external bayonet (1-2) in the middle of the base (1) is formed in the middle of the elastic clamping plate (3), a button (3-1) is formed on the elastic clamping plate (3) above the round hole (3-4), a T-shaped groove is formed in the button (3-1), two movable clamping pins (3-2) are formed in the lower portion of the round hole (3-4), the two movable clamping pins (3-2) form an included angle of 120 degrees and are symmetrically distributed with the vertical center line of the round hole (3-4), and elastic pieces (3-3) are formed in the lower portion of the elastic clamping plate (3); the upper part of the elastic clamping plate (3) is inserted into a fixed clamping pin (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 sliding groove (1-3); the external port (6) is provided with a circular bayonet joint (6-1) matched with the external bayonet (1-2) of the base (1), the circular bayonet joint (6-1) is provided with three uniformly distributed concave bayonet sockets (6-2), and the external port (6) is clamped and fixed on the base (1) through the three uniformly distributed concave bayonet sockets (6-2), the fixed bayonet pins (1-1) on the base (1) and the two movable bayonet pins (3-2) on the elastic clamping plate (3).
2. The normally closed elastic rapid conversion structure of a dust filter according to claim 1, wherein: the external bayonet (1-2) of the base (1) is provided with a sealing ring (5).
3. The normally closed elastic rapid conversion structure of a dust filter according to claim 1, wherein: the elastic sheet (3-3) of the elastic clamping plate (3) is arc-shaped, and the elastic sheet (3-3) contracts inwards after being pressed and recovers to the original shape after being pressed.
4. The normally closed elastic rapid conversion structure of a dust filter according to claim 1, wherein: after the circular bayonet joint (6-1) of the external port (6) is clamped in the external bayonet (1-2) on the base (1), the fixed bayonet (1-1) and the two movable bayonet (3-2) are clamped in the concave bayonet (6-2) of the circular bayonet joint (6-1), and the external port (6) cannot rotate on the external bayonet (1-2) of the base (1) after being clamped and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920883633.XU CN210205647U (en) | 2019-06-13 | 2019-06-13 | Normally closed elastic fast switching structure of dust filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920883633.XU CN210205647U (en) | 2019-06-13 | 2019-06-13 | Normally closed elastic fast switching structure of dust filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210205647U true CN210205647U (en) | 2020-03-31 |
Family
ID=69931596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920883633.XU Withdrawn - After Issue CN210205647U (en) | 2019-06-13 | 2019-06-13 | Normally closed elastic fast switching structure of dust filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210205647U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110180103A (en) * | 2019-06-13 | 2019-08-30 | 荆州思创科技开发有限公司 | Toxic dust filter normally closed type elasticity Quick switching structure |
-
2019
- 2019-06-13 CN CN201920883633.XU patent/CN210205647U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110180103A (en) * | 2019-06-13 | 2019-08-30 | 荆州思创科技开发有限公司 | Toxic dust filter normally closed type elasticity Quick switching structure |
| CN110180103B (en) * | 2019-06-13 | 2023-07-25 | 荆州思创科技开发有限公司 | Normally closed elastic quick conversion structure of dust and poison filter |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200331 Effective date of abandoning: 20230725 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200331 Effective date of abandoning: 20230725 |