CN220833878U - Mask of fire-fighting self-rescue respirator with filter paper arranged in mask - Google Patents
Mask of fire-fighting self-rescue respirator with filter paper arranged in mask Download PDFInfo
- Publication number
- CN220833878U CN220833878U CN202322122955.1U CN202322122955U CN220833878U CN 220833878 U CN220833878 U CN 220833878U CN 202322122955 U CN202322122955 U CN 202322122955U CN 220833878 U CN220833878 U CN 220833878U
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- mask
- filter paper
- valve seat
- valve
- hole
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- 238000007789 sealing Methods 0.000 claims abstract description 62
- 238000009434 installation Methods 0.000 claims description 51
- 238000001125 extrusion Methods 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000001914 filtration Methods 0.000 abstract description 3
- 238000005192 partition Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 206010017740 Gas poisoning Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model relates to a mask of a fire-fighting self-rescue respirator with filter paper arranged in a mask, which comprises an air outlet end tank cover used for covering a canister body of the canister, wherein the air outlet end tank cover is connected with an annular sleeve in a sealing way, the air outlet end tank cover and the annular sleeve enclose the mask, the annular sleeve is provided with a mask part one-way valve which is opened towards the outside of the mask, the air outlet pipe tank cover is provided with an air outlet hole, the end face of the air outlet end tank cover, which is far away from one end of the annular sleeve, is convex, the end face of the air outlet end tank cover, which is positioned at one end in the mask, is concave, filter paper is arranged in the annular sleeve, the filter paper partitions the annular sleeve into two spaces, and the air outlet hole and the mask part one-way valve are positioned at two sides of the filter paper. The first object of the utility model is to provide a mask of a fire-fighting self-rescue respirator, wherein filter paper for filtering gas output by a canister is arranged in the mask, and the novel connection of the filter paper at the air outlet end is improved.
Description
Technical Field
The utility model relates to fire-fighting equipment, in particular to a mask of a fire-fighting self-rescue respirator with filter paper arranged in the mask.
Background
The utility model provides a fire control is worn and prevent apparatus of flue gas poisoning when being used for carrying out the fire control effect, includes the hood, is located the outside canister of hood and is located the face guard of hood, and the canister includes a jar body and a jar lid, and the jar body is equipped with the inlet port, and the jar lid is equipped with the venthole, and the face guard is equipped with the breathing in that is in the same place with the venthole butt joint and possibly, and the canister is used for filtering back human inhalation to the inhaled air. An existing fire-fighting self-rescue respirator is disclosed in the patent document with the patent number 2021214741635. The existing fire-fighting self-rescue respirator has the following defects: the filter paper at the air outlet end is arranged in the filter tank; the one-way valve (air outlet one-way valve) of the mask part is formed on the mask integrally with the valve seat, and when in use, the head sleeve is clamped by the valve seat in a covering mode, so that the valve seat, the valve cover and the sealing diaphragm need to be assembled and stored separately on site during production, and the production steps are more.
Disclosure of utility model
The first object of the utility model is to provide a mask of a fire-fighting self-rescue respirator, wherein filter paper for filtering gas output by a canister is arranged in the mask, and the novel connection of the filter paper at the air outlet end is improved.
The second purpose of the utility model is to further provide a mask of the fire-fighting self-rescue respirator, wherein the mask part one-way valve is detachably connected with filter paper of the mask, and the filter paper of the mask is arranged in the mask, so that the problem of more production process steps caused by integration of a valve seat of the conventional mask part one-way valve on the mask is solved.
The technical problems are solved by the following technical proposal: the utility model provides a filter paper sets up the face guard of fire control self-rescue respirator in the face guard, including the end tank cap of giving vent to anger that is used for lid canister body, the end tank cap sealing connection that gives vent to anger has the annular cover, end tank cap and annular cover enclose into the face guard, the annular cover is equipped with the face guard portion check valve that opens towards the face guard outside, and the outlet duct tank cap is equipped with the venthole, its characterized in that, the terminal surface of keeping away from annular cover one end of end tank cap of giving vent to anger is the convex surface, and the terminal surface of the end tank cap of giving vent to anger that is located face guard one end is the concave surface, be equipped with filter paper in the annular cover, the filter paper cuts off the annular cover into two spaces, venthole and face guard portion check valve are located the both sides of filter paper. The heat insulation effect can be better improved, and the structure of the air outlet end tank cover enables filter paper to be installed in the face mask.
Preferably, a supporting step is arranged in the annular sleeve, and the filter paper can be prevented from being crushed by the extrudate when the extrudate is extruded from the end, away from the gas outlet end tank cover, of the annular sleeve to extrude the supporting step. Can make the squeezing and folding of the canister and the mask convenient in assembly.
Preferably, the supporting step is annular extending along the circumferential direction of the air outlet end tank cover, and the step surface of the supporting step is perpendicular to the central line of the filter tank.
Preferably, the filter paper is connected to the support step in a sealing manner.
Preferably, the annular sleeve is provided with a check valve installation through hole, a check valve sealing ring is integrally formed in the check valve installation through hole, the mask part check valve is installed in the check valve installation through hole, the mask part check valve comprises a valve seat and a check control structure arranged on the valve seat, one end of the valve seat is provided with a plurality of elastic flaps distributed along the circumferential direction of the valve seat, the other end of the valve seat is provided with a valve seat part large-diameter section, the outer side surface of the elastic flaps is provided with a reverse hook head, the elastic flaps penetrate through the check valve installation through hole, the check valve sealing ring is used for sealing and connecting the valve seat with the check valve installation through hole together, the hook head is hooked on the inner surface of the annular sleeve to prevent the valve seat from falling from the check valve installation through hole, and the valve seat part large-diameter section is used for preventing the valve seat from falling into the annular sleeve through the valve seat part installation hole. The one-way valve of the mask part can be directly purchased and assembled from a manufacturer, so that the process steps for producing the respirator are fewer. The check valve seal cavity is integrally formed on the mask, and can be fixed together during injection molding of the mask, so that an assembly process can be omitted, and the sealing reliability can be realized.
Preferably, the outer end of the check valve installation through hole is provided with a large-diameter section of the installation hole, a sealing step is formed between the large-diameter section of the installation hole and the check valve installation through hole, the check valve sealing ring is arranged on the sealing step, and the large-diameter section of the valve seat is matched with the sealing step to clamp the check valve sealing ring. Compact structure, reliable fixation.
Preferably, the outer end of the large-diameter section of the valve seat part is provided with a squeezing ring, and a headgear installation gap is formed between the squeezing ring and the outer end surface of the one-way valve installation through hole; when in use, the large-diameter section is arranged in the one-way valve through hole on the head sleeve in a penetrating way, and the extrusion ring is matched with the outer end surface of the one-way valve installation through hole to clamp the head sleeve. The fixing of the headgear is reliable.
Preferably, the outer end face of the one-way valve installation through hole is a plane, the end face of the extrusion ring facing one end of the elastic valve is a plane, and the outer end face of the one-way valve installation through hole is parallel to the end face of the extrusion ring facing one end of the elastic valve. The connection is reliable when the headgear is fixed.
Preferably, the inner end face of the one-way valve installation through hole is a plane, and the hook head is hooked on the inner end face of the one-way valve installation through hole. The convenience in manufacturing can be improved.
Preferably, the outer end face of the check valve installation through hole is a plane, and the outer end face of the check valve installation through hole is parallel to the inner end face of the check valve installation through hole. Can be assembled conveniently by manufacturing.
Preferably, the valve seat is of a tubular structure, the unidirectional control structure comprises a sealing diaphragm, a sealing ring, a connecting column, a fixed sleeve and a plurality of connecting ribs, the sealing ring is arranged on the inner peripheral surface of the valve seat and extends along the circumferential direction of the valve seat, the connecting column is positioned inside the valve seat and penetrates through the sealing diaphragm, the fixed sleeve is sleeved on the connecting column to prevent the sealing diaphragm from falling off, the connecting ribs are connected with the valve seat together, the connecting ribs are positioned on one side, facing the inner part of the annular sleeve, of the sealing diaphragm, and the periphery of the sealing diaphragm is lapped on the sealing ring. The structure is compact.
Preferably, the valve further comprises a valve cover penetrating through the air inlet end of the valve seat, the valve cover is connected with the connecting column, and a plurality of air holes are formed in the valve cover.
Preferably, the inner peripheral surface of the valve seat is provided with a limiting step for preventing the valve cover from driving the connecting column to move inwards to cause the breakage of the connecting rib. The safety is good.
The utility model has the following advantages: the structure is novel, and the filter paper can be conveniently replaced; the face mask part one-way valve can be purchased and assembled directly, and the manufacturing process steps of the respirator are reduced.
Drawings
FIG. 1 is a schematic illustration of the present utility model;
fig. 2 is a partially enlarged schematic view at a of fig. 1.
In the figure: the air outlet end tank cover 2, the annular sleeve 3, the air outlet hole 4, the mask part check valve 5, the supporting step 6, the filter paper 7, the connecting ring groove 17, the check valve installation through hole 22, the check valve sealing ring 23, the valve seat 24, the elastic valve 25, the valve seat part large diameter section 26, the barb head 27, the sealing step 28, the inner end surface 29 of the check valve installation through hole, the outer end surface 30 of the check valve installation through hole, the extrusion ring 31, the sealing diaphragm 32, the sealing ring 33, the connecting column 34, the fixing sleeve 35, the connecting rib 36, the valve cover 37, the air vent 38, the limiting step 39 and the sealing lip 47.
Detailed Description
The utility model is further described below with reference to the drawings and examples.
Referring to fig. 1 and 2, a mask of a fire-fighting self-rescue respirator with a grid plate in sealing connection comprises an air outlet end tank cover 2 for covering an air outlet end of a canister, wherein the air outlet end tank cover is in sealing connection with an annular sleeve 3. The end tank cover that gives vent to anger is connected and is enclosed into face guard, the other end of annular cover is equipped with sealing lip 47 in annular cover's one end, and sealing lip is the silica gel structure. The air outlet end tank cover is provided with an air outlet hole 4 (the air outlet hole is provided with an air inlet one-way valve which is opened towards the inside of the face mask, and the air inlet one-way valve is not shown in the drawing). The annular sleeve is provided with a face mask part one-way valve 5 which is opened towards the outside of the face mask. The end face of the end cover far away from one end of the annular sleeve is a convex surface, and the end face of the end cover located at one end in the mask is a concave surface. The annular sleeve is internally provided with a supporting step 6. The supporting step is annular extending along the circumferential direction of the tank cover at the air outlet end, and the step surface of the supporting step is perpendicular to the central line of the filter tank. The filter paper 7 at the air outlet end of the canister is connected on the supporting step in a sealing way. The air outlet hole and the one-way valve of the mask part are positioned at two sides of the filter paper, and the filter paper 7 partitions the annular mask into two spaces. When the tank body and the face mask are assembled, the extrusion supporting step is removed from one end of the annular sleeve, which is far away from the tank cover at the air outlet end, so that the face mask is abutted with the roller, and the filter paper can be prevented from being extruded and broken by the extrusion.
The annular sleeve is also provided with a connecting ring groove 17 extending along the circumferential direction of the mask. Two annular protrusions 21 are arranged in the connecting ring groove and are distributed along the axial direction of the connecting ring groove.
The annular sleeve is provided with a check valve mounting through hole 22, a check valve sealing ring 23 (namely, a check valve sealing cavity and a mask are injection molded together) is integrally formed in the check valve mounting through hole, the mask check valve is mounted in the check valve mounting through hole, and the mask check valve comprises a valve seat 24 and a check control structure arranged on the valve seat. The valve seat is of a circular tube structure. One end of the valve seat is provided with a plurality of elastic petals 25 distributed along the circumferential direction of the valve seat, the other end of the valve seat is provided with a valve seat part large-diameter section 26, and the outer side surface of the elastic petals is provided with a reverse hook head 27. The outer end of the check valve installation through hole is provided with an installation hole part large-diameter section, a sealing step 28 is formed between the installation hole part large-diameter section and the check valve installation through hole, and a check valve sealing ring is arranged on the sealing step. The inner end surface 29 of the check valve installation through hole is a plane, the elastic valve is arranged in the check valve installation through hole in a penetrating way, and the hook head is hooked on the inner end surface of the check valve installation through hole to prevent the valve seat from falling off from the check valve installation through hole. The outer end surface 30 of the check valve installation through hole is a plane, and the outer end surface of the check valve installation through hole is parallel to the inner end surface of the check valve installation through hole. The large-diameter section of the valve seat part is used for preventing the valve seat from falling into the annular sleeve through the mounting hole of the valve seat part. The large-diameter section of the valve seat part is matched with the sealing step to clamp the check valve sealing ring. The outer end of the large-diameter section of the valve seat part is provided with a squeezing ring 31, and a head sleeve mounting gap is formed between the squeezing ring and the outer end surface of the one-way valve mounting through hole; when in use, the large-diameter section is arranged in the one-way valve through hole on the head sleeve in a penetrating way, and the extrusion ring is matched with the outer end surface of the one-way valve installation through hole to clamp the head sleeve. The end face of the extrusion ring, which faces one end of the elastic valve, is a plane, and the outer end face of the one-way valve installation through hole is parallel to the end face of the extrusion ring, which faces one end of the elastic valve. The unidirectional control structure comprises a sealing diaphragm 32, a sealing ring 33 which is arranged on the inner peripheral surface of the valve seat and extends along the circumferential direction of the valve seat, a connecting column 34 which is positioned inside the valve seat and penetrates through the sealing diaphragm, a fixing sleeve 35 which is sleeved on the connecting column and prevents the sealing diaphragm from falling off, and a plurality of connecting ribs 36 which are used for connecting the connecting column and the valve seat together, wherein the connecting ribs are positioned on one side of the sealing diaphragm facing the inner part of the annular sleeve. The periphery of the sealing diaphragm is lapped on the sealing ring, so that the sealing diaphragm is opened during expiration and sealed during inspiration. The outer end of the valve seat is sleeved on a valve cover 37, the valve cover is connected with the connecting column, and a plurality of ventilation holes 38 are formed in the valve cover. The inner peripheral surface of the valve seat is provided with a limit step 39 for preventing the valve cover from driving the connecting column to move inwards to cause the breakage of the connecting rib.
In the above embodiment, the air outlet end cap is integrated on the face mask and also serves as the end plate of the face mask and is arched in a direction away from the annular sleeve, but it is of course possible that the air outlet end cap and the end plate of the face mask are connected independently or that the air outlet end cap is integrated on the face mask but is arched toward the inside of the annular sleeve or that the air outlet end cap is located inside the annular sleeve, as is conventional. The tank body can be made of nonmetal such as plastic (the plastic can not be connected with the tank cover from the waterproof of the binding), and the tank body and the face cover can be connected in a threaded mode.
Claims (10)
1. The utility model provides a filter paper sets up the face guard of fire control self-rescue respirator in the face guard, including the end tank cap of giving vent to anger that is used for lid canister body, the end tank cap sealing connection that gives vent to anger has the annular cover, end tank cap and annular cover enclose into the face guard, the annular cover is equipped with the face guard portion check valve that opens towards the face guard outside, and the outlet duct tank cap is equipped with the venthole, its characterized in that, the terminal surface of keeping away from annular cover one end of end tank cap of giving vent to anger is the convex surface, and the terminal surface of the end tank cap of giving vent to anger that is located face guard one end is the concave surface, be equipped with filter paper in the annular cover, the filter paper cuts off the annular cover into two spaces, venthole and face guard portion check valve are located the both sides of filter paper.
2. The mask of the self-rescue fire respirator with the filter paper arranged in the mask according to claim 1, wherein the annular sleeve is internally provided with a supporting step, and the filter paper can be prevented from being crushed by the extrudate when the extrudate is extruded from the end of the annular sleeve, which is far away from the air outlet end tank cover, to the supporting step.
3. The mask of the fire-fighting self-rescue respirator with filter paper arranged in the mask according to claim 2, wherein the supporting step is in a ring shape extending along the circumferential direction of the air outlet end tank cover, and the step surface of the supporting step is perpendicular to the central line of the filter tank.
4. A mask for a fire-fighting self-rescue respirator having a filter paper disposed within the mask according to claim 3, wherein the filter paper is sealingly attached to the support step.
5. The mask of the fire-fighting self-rescue respirator with filter paper arranged in the mask according to claim 1, 2, 3 or 4, wherein the annular sleeve is provided with a one-way valve installation through hole, a one-way valve sealing ring is integrally formed in the one-way valve installation through hole, the mask part one-way valve is installed in the one-way valve installation through hole, the mask part one-way valve comprises a valve seat and a one-way control structure arranged on the valve seat, one end of the valve seat is provided with a plurality of elastic flaps circumferentially distributed along the valve seat, the other end of the valve seat is provided with a valve seat part large-diameter section, the outer side surface of the elastic flaps is provided with a reverse hook head, the elastic flaps penetrate through the one-way valve installation through hole, the one-way valve sealing ring is used for connecting the valve seat with the one-way valve installation through hole in a sealing way, the hook head is hooked on the inner surface of the annular sleeve to prevent the valve seat from falling from the one-way valve installation through hole, and the valve seat part large-diameter section is used for preventing the valve seat from falling into the annular sleeve through the valve seat part installation hole.
6. The mask of the fire-fighting self-rescue respirator with the filter paper arranged in the mask according to claim 5, wherein the outer end of the check valve installation through hole is provided with an installation hole part large-diameter section, a sealing step is formed between the installation hole part large-diameter section and the check valve installation through hole, the check valve sealing ring is arranged on the sealing step, and the check valve sealing ring is clamped by the valve seat part large-diameter section matched with the sealing step.
7. The mask of the fire-fighting self-rescue respirator with the filter paper arranged in the mask according to claim 5, wherein the outer end of the large-diameter section of the valve seat part is provided with a squeezing ring, and a headgear installation gap is formed between the squeezing ring and the outer end surface of the one-way valve installation through hole; when in use, the large-diameter section is arranged in the one-way valve through hole on the head sleeve in a penetrating way, and the extrusion ring is matched with the outer end surface of the one-way valve installation through hole to clamp the head sleeve.
8. The mask of the fire-fighting self-rescue respirator with the filter paper arranged in the mask according to claim 5, wherein the valve seat is of a tubular structure, the unidirectional control structure comprises a sealing diaphragm, a sealing ring arranged on the inner peripheral surface of the valve seat and extending along the circumferential direction of the valve seat, a connecting column arranged in the valve seat and penetrating through the sealing diaphragm, a fixing sleeve sleeved on the connecting column for preventing the sealing diaphragm from falling off, and a plurality of connecting ribs for connecting the connecting column with the valve seat, the connecting ribs are arranged on one side of the sealing diaphragm facing the inner part of the annular sleeve, and the periphery of the sealing diaphragm is lapped on the sealing ring.
9. The mask of the self-rescue fire respirator with the filter paper arranged in the mask according to claim 8, further comprising a valve cover penetrating through the air inlet end of the valve seat, wherein the valve cover is connected with the connecting column, and a plurality of air holes are formed in the valve cover.
10. The mask of the self-rescue fire respirator with the filter paper arranged in the mask according to claim 9, wherein the inner peripheral surface of the valve seat is provided with a limiting step for preventing the valve cover from driving the connecting column to move inwards to cause the connecting rib to break.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322122955.1U CN220833878U (en) | 2023-08-08 | 2023-08-08 | Mask of fire-fighting self-rescue respirator with filter paper arranged in mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322122955.1U CN220833878U (en) | 2023-08-08 | 2023-08-08 | Mask of fire-fighting self-rescue respirator with filter paper arranged in mask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220833878U true CN220833878U (en) | 2024-04-26 |
Family
ID=90781805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322122955.1U Active CN220833878U (en) | 2023-08-08 | 2023-08-08 | Mask of fire-fighting self-rescue respirator with filter paper arranged in mask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220833878U (en) |
-
2023
- 2023-08-08 CN CN202322122955.1U patent/CN220833878U/en active Active
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