CN210170696U - Bypass atmosphere device of one-key opening type fire-fighting air respirator - Google Patents
Bypass atmosphere device of one-key opening type fire-fighting air respirator Download PDFInfo
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- CN210170696U CN210170696U CN201920477538.XU CN201920477538U CN210170696U CN 210170696 U CN210170696 U CN 210170696U CN 201920477538 U CN201920477538 U CN 201920477538U CN 210170696 U CN210170696 U CN 210170696U
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- diaphragm
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- swing arm
- atmosphere
- air respirator
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Abstract
The utility model provides a bypass atmosphere device of one key open-type fire control air respirator, include: the air supply valve body, the big gas pocket of bypass, the big gas diaphragm of bypass, diaphragm body and diaphragm dead lever have, diaphragm body lid is on the big gas pocket of bypass, the one end and the diaphragm body of diaphragm dead lever are predetermined angle fixed connection, the one end and the second pivot of swing arm rotate to be connected, the other end is the free end, the swing arm rotates the one end of being connected with the second pivot and has the bellying, the second action point is pressed on the free end, the swing arm is pressed on the diaphragm dead lever, it is rotatory to drive the big gas diaphragm of bypass, the bellying of swing arm rear end, jack-up or break away from the case subassembly. The utility model discloses both can solve the problem that gets into the interior air supply of on-the-spot preceding consumption composite gas cylinder, but the use of compressed air is saved to the fast operation again to increase effective rescue time.
Description
Technical Field
The utility model relates to a bypass atmosphere device of a key open-type fire control air respirator belongs to the fire-fighting equipment field.
Background
The positive pressure fire-fighting air respirator used by firemen utilizes the face mask to be closely fit with the periphery of the face of the wearer, so that the respiratory organs, eyes and the face of the wearer are completely isolated from the outside contaminated air or oxygen-deficient environment, a compressed air source is provided for supplying clean and quiet air for the wearer to breathe, the exhaled air is directly discharged into the atmosphere, the pressure in the face mask is greater than the ambient pressure in any breathing circulation process.
Most of the most common air respirator mask assemblies and air supply valve assemblies in the market are connected in a buckling or fast-inserting mode; the air supply valve assembly needs to be manually lifted and installed on the mask assembly in the mutual connection process of the air supply valve assembly and the mask assembly, one hand needs to be occupied in the connection process of the air supply valve assembly and the mask assembly, and particularly, in a rescue site, fire fighters operate under great psychological pressure, so that unsmooth connection is easily caused. And the self-contained compressed air is required to be used all the time before entering a rescue site after connection, the compressed air in the air bottle is limited, and the effective rescue time and the escape time can be reduced by consuming the compressed air just before entering the rescue site. Therefore, under the rescue scene of the necessity of minutes and seconds, a set of products is needed to save gas and do not need to be connected by two hands.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a bypass atmosphere device of a key open-type fire control air respirator to solve above-mentioned problem.
The utility model adopts the following technical scheme:
the utility model provides a bypass atmosphere device of one key open-type fire control air respirator, a serial communication port, include: an air supply valve body (5) which is detachably connected with a fire mask, a bypass atmospheric hole is arranged on the air supply valve body (5), a bypass atmospheric diaphragm is provided with a diaphragm body and a diaphragm pull rod, the diaphragm body covers the bypass atmospheric hole, one end of the diaphragm pull rod is fixedly connected with the diaphragm body at a preset angle, the intersection of the diaphragm body and the diaphragm pull rod is rotatably connected with a fourth rotating shaft, a button (4) is a V-shaped lever, the turning part is rotatably connected with a first rotating shaft (16), one end of the V-shaped lever is provided with a first action point (4-1), the other end of the V-shaped lever is provided with a second action point (4-2), one end of a swing arm (12) is rotatably connected with a second rotating shaft (17), the other end of the swing arm is a free end, one end of the swing arm (12) rotatably connected with the second rotating shaft (17) is provided with a bulge, and the second action point (4-2) is pressed on the free end of the, swing arm (12) are pressed on the diaphragm dead lever, drive bypass atmosphere diaphragm (14) and rotate around fourth pivot (21), and the bellying of swing arm (12) rear end along with the rotation of swing arm (12), jack-up or break away from case subassembly (22), case subassembly (22) self sealss when swing arm (12) break away from, case subassembly (22) are opened when swing arm (12) jack-up, case subassembly (22) and gas cylinder intercommunication.
Further, the utility model discloses a one-key open-type fire control air respirator's bypass atmosphere device still has such characteristic, still has: and the button clamping spring piece corresponds to the clamping position of the first action point (4-1) after clockwise rotation.
Further, the utility model discloses a one-key open-type fire control air respirator's bypass atmosphere device still has such characteristic, still includes: and the rocker (11) is positioned between the valve core assembly (22) and the boss.
Further, the utility model discloses a one-key open-type fire control air respirator's bypass atmosphere device still has such characteristic, and wherein, wane (11) rotate to be connected in the third pivot.
Furthermore, the bypass atmosphere device of the one-key opening type fire-fighting air respirator also has the characteristics that the bypass atmosphere device also comprises a valve block fixing ring 6, a valve block group 7 and a valve block fixing seat 8, wherein the valve block group 7 is fixed on the air supply valve body 5, and the valve block fixing ring 6 is pressed on the valve block group 7.
Further, the utility model discloses a one-key open-type fire control air respirator's bypass atmosphere device still has such characteristic, still has: and the valve plate fixing seat 8 is connected with the air supply valve body 5 through threads, and the valve plate fixing seat 8 is pressed on the valve plate fixing ring 6.
Further, the utility model discloses a one-key open-type fire control air respirator's bypass atmosphere device still has such characteristic, still has: and a second button (3-2) provided at a position corresponding to the free end of the air supply valve body (5).
Further, the one-button-opening fire-fighting air respirator bypass atmosphere device of the present invention has the feature that the valve sheet set 7 is located between the second button (3-2) and the free end of the swing arm (12).
Further, the utility model discloses a one-key open-type fire control air respirator's bypass atmosphere device still has such characteristic, wherein, still has the sealing washer on bypass atmosphere hole (14), and the diaphragm body is pressed on the sealing washer.
Further, the utility model discloses a one-key open-type fire control air respirator's bypass atmosphere device still has such characteristic, and wherein, bypass atmosphere diaphragm still has torsion spring, applys the power that is close to the sealing washer to the diaphragm body.
Beneficial effects of the utility model
The invention provides a bypass atmosphere device which is provided with a bypass atmosphere diaphragm, a bypass atmosphere hole, a torsion spring, a fourth rotating shaft and the like. The ambient air bypass device can be switched to a compressed air source for air supply from ambient air in a one-key mode, and has a function of preventing false opening. The bypass atmospheric membrane is provided with a rotating mechanism, the mouth and the nose of the human body are communicated with the ambient atmosphere after the rotation, and the compressed air in the composite gas cylinder is communicated after the bypass atmospheric membrane is reset. The device is completely installed and worn before entering a rescue site, the atmosphere of the breathing environment is realized, and the device can be directly switched to the composite gas cylinder for gas supply only by adopting a finger to press a switch immediately before entering the rescue site, so that the problem of consuming a gas source in the composite gas cylinder before entering the site can be solved, the device can be quickly operated, the use of compressed air is saved, and the effective rescue time is prolonged.
Drawings
FIG. 1 is a schematic view of the external structure of a supply valve assembly;
FIG. 2 is a respiratory mask assembly;
FIG. 3 is a cross-sectional view of AA in FIG. 1;
FIG. 4 is a schematic view of the internal structure of the bypass atmosphere device in a state where the bypass atmosphere is closed;
FIG. 5 is a schematic view of the internal structure of the bypass atmospheric device in a closed state of the bypass atmosphere from another perspective;
FIG. 6 is a schematic view of the internal structure of the bypass atmosphere device in the bypass atmosphere open state;
FIG. 7 is a schematic view of the internal structure of the bypass atmosphere device in another view, with the bypass atmosphere open;
fig. 8 is a schematic structural view of the swing arm 12;
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
The terms "first", "second", "third" and "fourth" used in this embodiment do not refer to the order of the components, but are used only to distinguish different component structures.
The supply valve assembly is constructed as shown in figure 1 and the mask assembly is shown in figure 2. The air supply valve connector 1-1 on the air supply valve assembly 1 in fig. 1 is connected with the mask assembly connecting interface 2-1 in fig. 2 for matching use.
A bypass atmosphere device for a one-touch fire-fighting air respirator comprises: the bypass air diaphragm 14, the torsion spring 15, the bypass air structural member 19, the sealing ring 20, the fourth rotating shaft 21 and the like.
The matching relation of products on the air supply valve assembly is as follows:
the air supply valve sheath 3 is fixed on the air supply valve body 5;
as shown in fig. 3 and 5, the push button 4 is fixed to the supply valve body 5 by a first rotation shaft 16, and the push button 4 is swingable about the first rotation shaft 16;
as shown in fig. 6, one end of the button 4 has a first action point 4-1, and when pressed, the button 4 rotates clockwise around the first rotation shaft 16 until the first action point 4-1 is caught in the catching groove 10-1 of the button catching reed 10.
The second point of action 4-2 of the button 4 presses on the swing arm 12 and when the button 4 is pressed to rotate in a clockwise direction, the second point of action 4-2 presses the swing arm 12 downwards.
One end of the swing arm 12 is rotatably connected to the second rotating shaft 17, and the other end is a free end, as shown in fig. 8, a protruding portion 122 is provided at the end of the swing arm 12 connected to the second rotating shaft 17. As shown in fig. 4 and 6, the boss 122 abuts the valve core assembly 22. When the swing arm 12 is in the position shown in fig. 4, the position with the larger radius of the boss 122 corresponds to the valve core assembly 22, and at this time, the valve core assembly 22 is jacked up, and the inside of the mask is supplied with compressed air. When the swing arm 12 is in the position shown in fig. 6, the position with the smaller radius of the boss 122 corresponds to the valve core assembly 22, and at this time, the valve core assembly 22 is not jacked up, and the inside of the mask is supplied with air from the outside atmosphere. Fig. 3 shows two states of the swing arm 12 at the same time.
As shown in fig. 3, the valve plate group 7 is fixed on the air supply valve body 5, the valve plate fixing ring 6 is pressed on the valve plate group 7, and the valve plate fixing seat 8 is connected with the upper thread of the air supply valve body 5 and acts on the valve plate fixing ring 6 to ensure the sealing function in the air supply valve cavity;
as shown in fig. 3, compression spring 9 acts on valve plate group 7;
a pressing point 3-1 on the air supply valve sheath 3 acts on the button 4;
the swing arm 12 acts on the rocker 11, and the rocker 11 is rotatably connected to the third rotating shaft 18;
as shown in fig. 3, the rocker 11 acts on the valve core assembly 22.
As shown in fig. 5 and 7, the bypass atmospheric membrane 14 is fixed to the air supply valve body 5 by the fourth rotary shaft 21; as shown in FIG. 7, the bypass atmospheric diaphragm 14 includes a diaphragm body 14-2 and a diaphragm pull rod 14-1, which are connected in a V-shape, and a fourth rotating shaft 21 is located at the V-shaped turning point. When the diaphragm pull rod 14-1 is pulled downwards, the diaphragm body 14-2 is opened inwards.
As shown in fig. 4, the torsion spring 15 acts on the bypass diaphragm 14 through the fourth shaft 21, so that the diaphragm body 14-2 is tightly covered on the seal ring 20.
Description of the use of the formulation:
and (3) a transmission process of opening bypass atmosphere:
as shown in figure 3, a pressing and holding piece 3-1 on the air supply valve sheath 3 is pressed on the button 4 by one key, the button 4 rotates clockwise around a first rotating shaft 16 until a first action point 4-1 on the button 4 is fixed in a clamping groove 10-1 of a clamping spring piece 10 of the button, meanwhile, as shown in figure 6, a second action point 4-2 on the button 4 pushes a swing arm 12 to rotate clockwise around a second rotating shaft 17, the swing arm 12 acts on a diaphragm pulling rod 14-1, and the pulling rod 14-1 drives a diaphragm body 14-2 to rotate around a fourth rotating shaft 21 as shown in figures 6 and 7, so that the diaphragm body 14-2 is separated from a sealing ring 20, and the device is connected with the ambient atmosphere. Meanwhile, the swing arm 12 is separated from the rocker 11, so that the valve core assembly 22 is self-sealed, and air supply is stopped. This part operates to cut off the air supply from the air source and instead to breathe ambient air.
And (3) closing the transmission process of the bypass atmosphere:
as shown in fig. 3, a second button 3-2 on the air supply valve sheath 3 is pressed by one key, the second button 3-2 acts on an action point 12-1 on the swing arm 12, the swing arm 12 rotates around a second rotating shaft 17 to act on a second action point 4-2 of the button 4, as shown in fig. 4, the button 4 rotates anticlockwise around a first rotating shaft 16, so that the first action point 4-1 on the button 4 is separated from a clamping groove 10-1 of a button clamping spring piece 10, and at the moment, the valve piece group 7 acts on the action point 12-1 of the swing arm 12; the raised portion 122 of the swing arm 12 lifts the rocker 11 upward, and the rocker 11 acts on the valve core assembly 22. At the moment, the air supply is kept as required through the pressure balance in the system. Meanwhile, as shown in fig. 5, the bypass atmospheric diaphragm 14 is reset under the action of the torsion spring 15, and the bypass atmospheric diaphragm action point 14-2 is in contact with the sealing ring 20 to keep a sealing state. The operation is connected with air supply and self-sealing of the ambient air.
Claims (10)
1. A by-pass atmosphere device for a one-touch fire air respirator, comprising:
an air supply valve body (5) which is detachably connected with the fire-fighting mask,
a bypass atmospheric hole arranged on the air supply valve body (5),
a bypass atmospheric diaphragm, which is provided with a diaphragm body and a diaphragm pull rod, wherein the diaphragm body covers the bypass atmospheric hole, one end of the diaphragm pull rod is fixedly connected with the diaphragm body at a preset angle, the intersection of the diaphragm body and the diaphragm pull rod is rotationally connected with a fourth rotating shaft,
the button (4) is a V-shaped lever, the turning part is rotationally connected with the first rotating shaft (16), one end of the V-shaped lever is provided with a first action point (4-1), the other end is provided with a second action point (4-2),
one end of the swing arm (12) is rotationally connected with the second rotating shaft (17), the other end is a free end, one end of the swing arm (12) rotationally connected with the second rotating shaft (17) is provided with a convex part, the second action point (4-2) is pressed on the free end of the swing arm (12),
the swing arm (12) presses on the diaphragm pull rod to drive the bypass atmospheric diaphragm (14) to rotate around a fourth rotating shaft (21),
the bulge at the rear end of the swing arm (12) jacks or breaks away from the valve core assembly (22) along with the rotation of the swing arm (12), the valve core assembly (22) is self-sealed when the swing arm (12) breaks away, the valve core assembly (22) is opened when the swing arm (12) jacks,
the valve core assembly (22) is communicated with the gas cylinder.
2. The atmosphere bypass device of a one-touch fire air respirator of claim 1, further comprising:
and the button clamping spring piece corresponds to the clamping position of the first action point (4-1) after clockwise rotation.
3. The atmosphere bypass device of a one-touch fire air respirator of claim 1, further comprising:
and the rocker (11) is positioned between the valve core assembly (22) and the boss.
4. The atmosphere bypass device of a one-touch fire air respirator of claim 3, wherein:
wherein, the rocker (11) is rotationally connected to the third rotating shaft.
5. The atmosphere bypass device of a one-touch fire air respirator of claim 1, wherein:
also comprises a valve plate fixing ring (6), a valve plate group (7) and a valve plate fixing seat (8), the valve plate group (7) is fixed on the air supply valve body (5),
the valve plate fixing ring (6) is pressed on the valve plate group (7).
6. The atmosphere bypass device of a one-touch fire air respirator of claim 5, further comprising:
the valve plate fixing seat (8), the valve plate fixing seat (8) is connected with the air supply valve body (5) through threads and pressed on the valve plate fixing ring (6).
7. The atmosphere bypass device of a one-touch fire air respirator of claim 6, further comprising:
and a second button (3-2) provided at a position of the air supply valve body (5) corresponding to the free end.
8. The atmosphere bypass device of a one-touch fire air respirator of claim 7, wherein:
the valve plate group 7 is located between the second button (3-2) and the free end of the swing arm (12).
9. The atmosphere bypass device of a one-touch fire air respirator of claim 1, wherein the bypass atmosphere vent further comprises a sealing ring, and wherein the diaphragm body presses against the sealing ring.
10. The atmosphere bypass device of a one-touch fire air respirator of claim 1,
the bypass atmospheric diaphragm is also provided with a torsion spring, and the torsion spring applies a force to the diaphragm body to approach the sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920477538.XU CN210170696U (en) | 2019-04-10 | 2019-04-10 | Bypass atmosphere device of one-key opening type fire-fighting air respirator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920477538.XU CN210170696U (en) | 2019-04-10 | 2019-04-10 | Bypass atmosphere device of one-key opening type fire-fighting air respirator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210170696U true CN210170696U (en) | 2020-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920477538.XU Active CN210170696U (en) | 2019-04-10 | 2019-04-10 | Bypass atmosphere device of one-key opening type fire-fighting air respirator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210170696U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111632294A (en) * | 2020-06-05 | 2020-09-08 | 江苏长城消宝安防科技股份有限公司 | Mask with air bypass valve and air supply breathing device using same |
| CN115400363A (en) * | 2022-09-19 | 2022-11-29 | 邸天健 | Simple and reliable multifunctional mask |
-
2019
- 2019-04-10 CN CN201920477538.XU patent/CN210170696U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111632294A (en) * | 2020-06-05 | 2020-09-08 | 江苏长城消宝安防科技股份有限公司 | Mask with air bypass valve and air supply breathing device using same |
| CN111632294B (en) * | 2020-06-05 | 2021-12-21 | 江苏长城消宝安防科技股份有限公司 | Mask with air bypass valve and air supply breathing device using same |
| CN115400363A (en) * | 2022-09-19 | 2022-11-29 | 邸天健 | Simple and reliable multifunctional mask |
| CN115400363B (en) * | 2022-09-19 | 2024-04-16 | 邸天健 | Simple and reliable multifunctional mask |
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