CN211751919U - Lower air duct of respirator - Google Patents
Lower air duct of respirator Download PDFInfo
- Publication number
- CN211751919U CN211751919U CN202020350721.6U CN202020350721U CN211751919U CN 211751919 U CN211751919 U CN 211751919U CN 202020350721 U CN202020350721 U CN 202020350721U CN 211751919 U CN211751919 U CN 211751919U
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- CN
- China
- Prior art keywords
- hose
- air duct
- lower air
- respirator
- hose nipple
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- 210000002445 nipple Anatomy 0.000 claims abstract description 22
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 7
- 206010066054 Dysmorphism Diseases 0.000 description 1
- 208000004929 Facial Paralysis Diseases 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 208000036826 VIIth nerve paralysis Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 231100000862 numbness Toxicity 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model discloses a wind channel under respirator tuber pipe, including lower wind channel main part, the side of lower wind channel main part has the breather pipe, the breather pipe meets with outside hose through hose nipple, still have in the lower wind channel main part with the communicating air outlet of breather pipe, hose nipple includes output interface end and hose nipple end, hose nipple's one end is passed through output interface end and is met with the breather pipe, hose nipple's the other end passes through hose nipple end and meets with outside hose, output interface end and hose nipple end rotate to be connected, the air outlet includes defogging wind gap and breathing wind gap. The utility model discloses rational in infrastructure, can avoid the hose to tie a knot, buckle, the air-out is more reasonable simultaneously.
Description
Technical Field
The utility model relates to a respirator field especially relates to air duct field under the respirator tuber pipe.
Background
The breathing apparatus is a self-sufficient open type air respirator, which is widely applied to departments such as fire control, chemical engineering, ships, petroleum, smelting, warehouses, laboratories, mines and the like, and is used for fire extinguishment, rescue and relief work and rescue work of firemen or rescue and rescue personnel under various environments such as dense smoke, toxic gas, steam or oxygen deficiency and the like safely and effectively;
when in actual use, the head of a user tends to need to rotate often, the mask can also rotate along with the head, the hose end of the air supply hose of the traditional structure is fixed, therefore, the hose can be knotted and bent, and the like, if the hose is not combed in long-time use, the hose can be knotted and bent, even irreversible damage such as hose crust rupture can be caused, and further, because the air outlet of the mask is improperly arranged, the PC in the mask can be fogged after long-time use, and meanwhile, the same part of the face blown by wind for a long time can cause facial paralysis of the user.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a lower air duct of an air duct of a respirator.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an air duct under respirator tuber pipe, including lower wind channel main part, the side of lower wind channel main part has the breather pipe, the breather pipe meets with outside hose through hose nipple, still have on the lower wind channel main part with the communicating air outlet of breather pipe, hose nipple includes output interface end and hose nipple end, hose nipple's one end meets with the breather pipe through output interface end, hose nipple's the other end meets with outside hose through hose nipple end, output interface end and hose nipple end rotate to be connected, the air outlet includes defogging wind gap and breathing wind gap.
The output interface end comprises an interface tube, an outer tube and an inner tube, one end of the hose joint end is positioned between the outer tube and the inner tube, a sealing ring is arranged between the hose joint end and the outer tube, the inner tube extends into an inner cavity of the hose joint end, and a threaded mounting section is arranged on the wall of the inner cavity of the hose joint end.
The upper end inner chamber of hose nipple end is located inner tube department and opens there is annular step, and the shaft of inner tube is located annular step department and evenly opens along circumference has a plurality of window, and every position of shaft of inner tube in window department all has the spacing backstop that exposes the window and cooperate with annular step.
The upper end of the hose joint end is provided with an annular caulking groove, and the sealing ring is arranged between the hose joint end and the outer pipe through the annular caulking groove.
The output interface end is provided with two symmetrically arranged bulges at the periphery of the interface tube.
The lower air duct main body is provided with a filter screen mounting groove, the breathing air port is positioned at the filter screen mounting groove, the filter screen is embedded and fixed in the filter screen mounting groove and covers the breathing air port, and the lower air duct main body is provided with a plurality of mounting holes.
Compared with the prior art, the beneficial effects of the utility model are that:
compared with the prior art, the output interface end is rotationally connected with the hose joint end, so that the joint of the hose and the mask is not fixed, the hose can rotate along with the rotation of the mask, and the hose is prevented from being knotted, bent and other bad phenomena;
furthermore, the air outlet of the utility model is more reasonable and is divided into a demisting air port and a breathing air port, the demisting air port can blow towards the PC of the face mask, so that the PC aerial fog phenomenon can not occur, and the breathing air port is composed of a plurality of round holes, so that the air quantity dispersion is realized, the air is prevented from directly blowing to the same position of the face of a user, the face numbness is not easy to cause, and the breathing impedance of the user can be reduced by dispersing the air quantity;
and owing to breathe air inlet department and still have the filter screen, the filter screen can be for superfine filter screen, has strong permeability, can further scatter the amount of wind, and the filter screen can further filter gas, prevents that big granule from being inhaled the human body to the hole of superfine filter screen itself is little and many, can reduce wind effectively and make an uproar, because the filter screen is removable accessory, different users can select to change superfine filter screen into the filter screen of oneself when using same equipment, guarantees totally, the health.
Drawings
Fig. 1 is a schematic structural diagram of the present invention (arrows in the figure indicate wind directions);
FIG. 2 is a schematic view of the structural relationship between the filter screen and the lower duct body of the present invention;
FIG. 3 is a schematic perspective view of the hose connector of the present invention;
fig. 4 is a schematic front view of the hose connector of the present invention;
FIG. 5 is a cross-sectional view taken along line D-D of FIG. 4;
fig. 6 is a schematic view of the structure of the present invention when mounted on a respirator mask.
In the figure: the air duct comprises a main body of an air duct 1, an air pipe 2, a hose joint 3, an air outlet 4, a demisting air port 4-1, a breathing air port 4-2, an output port 5, a port pipe 5-1, an outer pipe 5-2, an inner pipe 5-3, a window 5-3-1, a limit stop 5-3-2, a bulge 5-4, a hose joint end 6, a thread mounting section 6-1, an annular step 6-2, an annular caulking groove 6-3, a sealing ring 7, a filter screen mounting groove 8, a filter screen 9 and a mounting hole 10.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-6, a lower air duct of an air duct of a respirator comprises a lower air duct main body 1, wherein an air pipe 2 is arranged on the side edge of the lower air duct main body 1, the air pipe 2 is connected with an external hose through a hose joint 3, an air outlet 4 communicated with the air pipe 2 is further arranged on the lower air duct main body 1, the hose joint 3 comprises an output joint end 5 and a hose joint end 6, one end of the hose joint 3 is connected with the air pipe 2 through the output joint end 5, the other end of the hose joint 3 is connected with an external hose through the hose joint end 6, the output joint end 5 is rotatably connected with the hose joint end 6, and the air outlet 4 comprises a demisting air port 4-1 and a breathing air.
The output interface end 5 comprises an interface tube 5-1, an outer tube 5-2 and an inner tube 5-3, one end part of the hose joint end 6 is positioned between the outer tube 5-2 and the inner tube 5-3, a sealing ring 7 is arranged between the hose joint end 6 and the outer tube 5-2, the inner tube 5-3 extends into an inner cavity of the hose joint end 6, and the cavity wall of the inner cavity of the hose joint end 6 is provided with a threaded mounting section 6-1.
An annular step 6-2 is arranged at the position, located at the inner pipe 5-3, of an inner cavity at the upper end of the hose connector end 6, a plurality of windows 5-3-1 are uniformly arranged at the position, located at the annular step 6-2, of a pipe body of the inner pipe 5-3 along the circumferential direction, and each limiting stop 5-3-2 which is exposed out of the window 5-3-1 and matched with the annular step 6-2 is arranged at the position, located at the window 5-3-1, of the pipe body of the inner pipe 5-3.
The upper end of the hose joint end 6 is provided with an annular caulking groove 6-3, and the sealing ring 7 is arranged between the hose joint end 6 and the outer pipe 5-2 through the annular caulking groove 6-3.
The output interface end 5 is provided with two symmetrically arranged bulges 5-4 at the periphery of the interface tube 5-1.
The lower air duct main body 1 is provided with a filter screen mounting groove 8, the breathing air port 4-2 is positioned at the filter screen mounting groove 8, the filter screen 9 is embedded and fixed in the filter screen mounting groove 8 and covers the breathing air port 4-2, and the lower air duct main body 1 is provided with a plurality of mounting holes 10.
It should be noted that the utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece can all be customized according to the record of description and attached drawing, and the concrete connected mode of each part all adopts conventional means such as mature bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt among the prior art, conventional model, and the inventor does not detailed herein again.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides an air duct under respirator tuber pipe, including lower air duct main part (1), the side of lower air duct main part (1) has breather pipe (2), a serial communication port, breather pipe (2) meet with outside hose through hose nipple (3), still have air outlet (4) communicating with breather pipe (2) on lower air duct main part (1), hose nipple (3) include output interface end (5) and hose nipple end (6), one end of hose nipple (3) meets with breather pipe (2) through output interface end (5), the other end of hose nipple (3) meets with outside hose through hose nipple end (6), output interface end (5) and hose nipple end (6) rotate to be connected, air outlet (4) are including defogging wind gap (4-1) and breathing wind gap (4-2).
2. The lower air duct of the respirator according to claim 1, characterized in that the output mouthpiece end (5) comprises a mouthpiece (5-1), an outer tube (5-2) and an inner tube (5-3), one end of the hose connector end (6) is located between the outer tube (5-2) and the inner tube (5-3), a sealing ring (7) is arranged between the hose connector end (6) and the outer tube (5-2), the inner tube (5-3) extends into an inner cavity of the hose connector end (6), and a threaded mounting section (6-1) is arranged on the wall of the inner cavity of the hose connector end (6).
3. The lower air duct of the respirator as claimed in one of claims 1 or 2, wherein an inner cavity at the upper end of the hose connector end (6) is provided with an annular step (6-2) at the position of the inner tube (5-3), the tube body of the inner tube (5-3) is provided with a plurality of windows (5-3-1) uniformly along the circumferential direction at the position of the annular step (6-2), and each tube body of the inner tube (5-3) is provided with a limit stop (5-3-2) which is exposed out of the window (5-3-1) and is matched with the annular step (6-2) at the position of the window (5-3-1).
4. The lower air duct of the respirator as claimed in claim 2, characterized in that the upper end of the hose connector end (6) is provided with an annular caulking groove (6-3), and the sealing ring (7) is arranged between the hose connector end (6) and the outer tube (5-2) through the annular caulking groove (6-3).
5. The respirator stack according to claim 2, wherein the outlet mouthpiece (5) is provided with two symmetrically arranged protrusions (5-4) at the periphery of the mouthpiece (5-1).
6. The lower air duct of the respirator as claimed in claim 1, wherein the lower air duct main body (1) is provided with a filter screen mounting groove (8), the breathing air opening (4-2) is positioned at the filter screen mounting groove (8), the filter screen (9) is embedded and fixed in the filter screen mounting groove (8) and covers the breathing air opening (4-2), and the lower air duct main body (1) is provided with a plurality of mounting holes (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020350721.6U CN211751919U (en) | 2020-03-19 | 2020-03-19 | Lower air duct of respirator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020350721.6U CN211751919U (en) | 2020-03-19 | 2020-03-19 | Lower air duct of respirator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211751919U true CN211751919U (en) | 2020-10-27 |
Family
ID=72931868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020350721.6U Active CN211751919U (en) | 2020-03-19 | 2020-03-19 | Lower air duct of respirator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211751919U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112717293A (en) * | 2021-01-08 | 2021-04-30 | 常州迅安科技股份有限公司 | Lower air duct air supply mechanism, head-mounted protective tool and electric protective equipment |
| US11701529B2 (en) | 2021-01-08 | 2023-07-18 | Changzhou Shine Science & Technology Co., Ltd. | Air supply mechanism with lower air duct, headgear and electric protective equipment |
-
2020
- 2020-03-19 CN CN202020350721.6U patent/CN211751919U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112717293A (en) * | 2021-01-08 | 2021-04-30 | 常州迅安科技股份有限公司 | Lower air duct air supply mechanism, head-mounted protective tool and electric protective equipment |
| CN112717293B (en) * | 2021-01-08 | 2021-08-10 | 常州迅安科技股份有限公司 | Lower air duct air supply mechanism, head-mounted protective tool and electric protective equipment |
| WO2022147856A1 (en) * | 2021-01-08 | 2022-07-14 | 常州迅安科技股份有限公司 | Lower-air-duct air supply mechanism, head-mounted protector and electric protection device |
| US11701529B2 (en) | 2021-01-08 | 2023-07-18 | Changzhou Shine Science & Technology Co., Ltd. | Air supply mechanism with lower air duct, headgear and electric protective equipment |
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| GR01 | Patent grant |