CN208722562U - A kind of safety-type alarm whistle - Google Patents
A kind of safety-type alarm whistle Download PDFInfo
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- CN208722562U CN208722562U CN201821365913.3U CN201821365913U CN208722562U CN 208722562 U CN208722562 U CN 208722562U CN 201821365913 U CN201821365913 U CN 201821365913U CN 208722562 U CN208722562 U CN 208722562U
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- whistle
- alarm
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- face
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Abstract
The utility model discloses the safety-type alarm whistles, connect with the high-voltage tube of air respiratorresuscitator, and safety-type alarm whistle includes: shell, the interior chamber having with high-voltage tube gas connection；Whistle body, with cage connection；Whistle core, the whistle body connection；Alarm piston is set in the body of the whistle, and is configured to direction axially along and slides in the body of the whistle；Sealing piston, it is arranged to a part and is located in shell, and another part is located in the body of the whistle, and sealing piston has first end face and second end face in its axial direction, wherein first end face bears the pressure of high pressure gas in chamber, and second end face bears the pressure from alarm piston；Wherein, under non-alarm station, the second end face of sealing piston and the inner wall step surface of whistle body are in close contact, and under station of alarming, the second end face pushes away the inner wall step surface by alarm piston.The safety-type alarm whistle solves the problems, such as the security risk as brought by threaded engagement by being adjusted to structure.
Description
Technical field
The utility model relates to a kind of warning device more particularly to a kind of warning devices for respirator pressure reducer.
Background technique
Air respiratorresuscitator is equipped as respiratory protection, is widely used in fire-fighting and rescue, metallurgy, chemical industry, ship and army
Etc. every field.Air respiratorresuscitator includes that cylinder package, depressurized system component, alarm whistle component, mask, steam supply valve and backrest are total
At.In use, will first be full of the compressed air of 30MPa in cylinder package, then by the decompression on cylinder package and air respiratorresuscitator
Pressure reducing valve connection in system component, after opening the bottle valve in cylinder package, the compressed air in cylinder package enters decompression
Valve, after level-one depressurizes (at this point, air pressure reduces to 0.7MPa) by middle pressure pipe, pressure pipe enters steam supply valve and carries out secondary pressure in
(at this point, air pressure reduces to 1.5 millibars) enters mask and uses for user's breathing afterwards.Wherein alarm whistle component is in storage pressure in 5-
It will start alarm within the scope of 6MPa, issue the alarm sound greater than 90 decibels or more, remind user's tolerance insufficient, need to remove at once
From arrive place of safety.But since the initiation value of alarm whistle needs are adjusted, and need band controlled atmosphere again in adjustment process
Section, therefore, once external screw thread and internal screw thread are not engaged a tooth or more in adjustment process, gas source one is connected, inside alarm whistle
Part will fly out with the pressure of gas source, cause injury to personnel even occur injures and deaths safety accident, especially in scheduling and planning
The defect seems especially prominent in the process, is extremely unfavorable for the personal safety of commissioning staff.
Based on this, it is expected that obtaining a kind of safety-type alarm whistle, by being designed adjustment to structure, effectively solve in band
Safety during controlled atmosphere section ensure that the personal safety of commissioning staff.
Utility model content
The purpose of this utility model is to provide a kind of safety-type alarm whistles, and the safety-type alarm whistle is by carrying out structure
Adjustment, solves the problems, such as the security risk as brought by threaded engagement in the prior art, the people of commissioning staff has been effectively ensured
Body safety.
In order to reach above-mentioned purpose of utility model, the utility model provides a kind of safety-type alarm whistle, described safety-type
Alarm whistle includes:
Shell, the interior chamber having with high-voltage tube gas connection；
Whistle body, with the cage connection；
Whistle core is connect with the whistle body；
Alarm piston is set in the whistle body, and is configured to direction axially along and slides in the body of the whistle；
Sealing piston is arranged to a part and is located in the shell, and another part is located in the whistle body, described close
Envelope piston has first end face and second end face in its axial direction, wherein the first end face bears high pressure in the chamber
The pressure of gas, the second end face bear the pressure from alarm piston；
Wherein, under non-alarm station, the second end face of sealing piston and the inner wall step surface of whistle body are in close contact, and are being reported
Under alert station, the second end face pushes away the inner wall step surface by alarm piston.
Further, in safety-type alarm whistle described in the utility model, the outer wall of the whistle body is equipped with external screw thread,
To be connect with the outer casing screw.
Further, in safety-type alarm whistle described in the utility model, sealing is equipped between the whistle body and shell
Circle.
Further, in safety-type alarm whistle described in the utility model, the whistle core is threadedly coupled with whistle body, described
Locking nut is also arranged with outside the core of the whistle.
Further, it in safety-type alarm whistle described in the utility model, is equipped between the whistle core and alarm piston
First spring, first spring make alarm piston that sealing piston be pushed to leave the inner wall step surface to alarm piston application
Pressure.
Further, in safety-type alarm whistle described in the utility model, the sealing piston has non-metallic part
So that the second end face has the non-metal portion that can be in close contact with inner wall step surface.
Further, it in safety-type alarm whistle described in the utility model, is equipped between the whistle body and alarm piston
Sealing ring.
Further, in safety-type alarm whistle described in the utility model, second spring is equipped in the chamber, it is described
Second spring is arranged to apply elastic force to the first end face of sealing piston.
Further, in safety-type alarm whistle described in the utility model, the shell has to be connected with high pressure pipe screw thread
The interface connect.
Further, it is equipped in safety-type alarm whistle described in the utility model, between the shell and high-voltage tube close
Seal.
Safety-type alarm whistle described in the utility model has the following advantages and beneficial effects: compared to the prior art
Safety-type alarm whistle described in the utility model is by being adjusted structure, so that the safety-type alarm whistle
Part with the sealing piston that can not deviate from, even if there is a situation where screw threads not to be engaged, when gas source is opened inside it
It will not fly out with the pressure of gas source, to overcome the deficiencies in the prior art, and then avoid as brought by occlusion problem
The personal safety of commissioning staff has been effectively ensured in security risk.
Detailed description of the invention
Fig. 1 shows that safety-type alarm whistle described in the utility model is installed on air respiratorresuscitator in one embodiment
On state.
Fig. 2 is that the structure of respirator pressure reducer alarm whistle device described in the utility model in one embodiment is shown
It is intended to.
Specific embodiment
Below by specific embodiment according to the present utility model and Figure of description to described in the utility model safety-type
Alarm whistle is further described, but the explanation does not constitute improper limits to the present invention.
Fig. 1 show safety-type alarm whistle described in the utility model in one embodiment be installed on aerial respiration
State on device.
As shown in Figure 1, air respiratorresuscitator includes mask 1, gas cylinder 3 and the steam supply valve 2 with mask 1,3 air circuit connection of gas cylinder
And the safety-type alarm whistle 6 by high-voltage tube 5 and 3 air circuit connection of gas cylinder, wherein safety-type alarm whistle 6 and 5 screw thread of high-voltage tube
Connection.
Fig. 2 further illustrates the specific structure of safety-type alarm whistle.Fig. 2 is respirator described in the utility model decompression
Structural schematic diagram of the device with alarm whistle device in one embodiment.
As shown in Fig. 2, safety-type alarm whistle 6 includes shell 100, the interior chamber having with 5 gas connection of high-voltage tube；The whistle
Body 400, by setting external screw thread on the outer wall of whistle body 400 to be connect with shell 100；Whistle core 110 connects with whistle body 400
It connects, and whistle core 110 is threadedly coupled with whistle body 400, locking nut 900 is also arranged with outside whistle core 110；Alarm piston 700, sets
In in whistle body 400, and it is configured to direction axially along and is slided in whistle body 400；Sealing piston 300, is set
It is located in shell 100 for a part, another part is located in whistle body 400, and sealing piston 300 has first in its axial direction
End face I and second end face II, wherein first end face I bears the pressure of high pressure gas in chamber, and second end face II is born from report
The pressure of alert piston 700.
In addition, the first sealing ring 500 is equipped between whistle body 400 and shell 100 in order to improve leakproofness, and in whistle body 400
The second sealing ring 600 is equipped between alarm piston 700.And it is also set in high-voltage tube 5 and the threaded connection place of safety-type alarm whistle 6
There is third sealing ring 130.
In addition, in order to avoid causing workpiece rapid wear caused by frequently contacting, sealing piston 300 have non-metallic part with
Make second end face II that there is the non-metal portion that can be in close contact with inner wall step surface.
The first spring 800 is equipped between whistle core 110 and alarm piston 700, the first spring 800 is applied to alarm piston 700
Add the pressure for making alarm piston 700 that sealing piston 300 be pushed to leave inner wall step surface.In addition, being equipped with second spring in chamber
200, second spring 200 is arranged to apply elastic force to the first end face I of sealing piston 300.Sealing piston 300 and whistle body 400
Between with pressure variation carry out open and close matching relationship, by left or right rotation adjust whistle core 110 so that the first spring
800 occur elastic deformation, so that alarming value is within the scope of 5-6MPa, are then locked by locking nut 900.
When bleed pressure 111 is higher than 6MPa, the power of bleed pressure 111 and spring 200 is acted in sealing piston 300,
At this point, being in closed state between sealing piston 300 and whistle body 400, overcomes the elastic force of the first spring 800, make alarm piston
700 in axial direction move upwards, so that the second end face II of sealing piston 300 and the inner wall step surface of whistle body 400 are close
Contact, i.e., safety-type alarm whistle 6 is in non-alarm station.
And when bleed pressure 111 is lower than 5MPa, the power of the first spring 800 acts on alarm piston 700, alarm piston
700 push sealing piston 300 down, and the second end face II of sealing piston 300 is pushed away the inner wall of whistle body 400 by alarm piston 700
Step surface, at this point, in the open state between sealing piston 300 and whistle body 400, i.e., safety-type alarm whistle 6 is in alarm condition.
And when left-handed adjusting whistle core 110, the elastic force of the first spring 800 reduces, between sealing living 300 and whistle body 400
Closed state is switched to, at this point, acting on alarm piston 700 without bleed pressure, the screw thread between whistle core 110 and whistle body 400
Effective connection screw thread of connection is reduced, it might even be possible to whistle core all back-outed in left-handed adjustment process, it will not be due to gas source
All parts such as whistle core 110, the first spring 800 and alarm piston 700 are gone out in the effect of pressure 111, so as to avoid people
Member's injury, ensure that the personal safety of user.
It should be pointed out that bleed pressure 111 from high-voltage tube 5 high pressure gas after gas passage enters chamber
The pressure of formation, arrow direction illustrates the action direction of bleed pressure 111 in figure.
It can thus be seen that safety-type alarm whistle described in the utility model has the advantages that the safety-type alarm whistle
By being adjusted to structure, so that the safety-type alarm whistle has the sealing piston that can not deviate from, even if screw thread occurs
Situation about not being engaged, the part when gas source is opened inside it will not fly out with the pressure of gas source, to overcome existing
The deficiency of technology, and then the security risk as brought by occlusion problem is avoided, the person peace of commissioning staff has been effectively ensured
Entirely.
It should be noted that prior art part is not limited to present specification institute in the protection scope of the utility model
The embodiment provided, all prior arts not contradicted with the embodiment of the utility model, including but not limited to first patent
Document, first public publication, formerly openly use etc., it can all be included in the protection scope of the utility model.
In addition, in this case in the combination of each technical characteristic and unlimited this case claim documented combination or
It is combination documented by specific embodiment, all technical characteristics that this case is recorded can be freely combined in any way
Or combine, unless generating contradiction between each other.
It is also to be noted that embodiment enumerated above is only specific embodiment of the utility model.This obvious reality
Above embodiments are not limited to novel, the similar variation or deformation made therewith are that those skilled in the art can be practical new from this
What type disclosure immediately arrived at or was easy to just to associate, it all should belong to the protection range of the utility model.
Claims (10)
1. a kind of safety-type alarm whistle, connect with the high-voltage tube of air respiratorresuscitator, which is characterized in that the safety-type alarm whistle
Include:
Shell, the interior chamber having with high-voltage tube gas connection；
Whistle body, with the cage connection；
Whistle core is connect with the whistle body；
Alarm piston is set in the whistle body, and is configured to direction axially along and slides in the body of the whistle；
Sealing piston is arranged to a part and is located in the shell, and another part is located in the whistle body, and the sealing is lived
Plug has first end face and second end face in its axial direction, wherein the first end face bears high pressure gas in the chamber
Pressure, the second end face bears the pressure from alarm piston；
Wherein, under non-alarm station, the second end face of sealing piston and the inner wall step surface of whistle body are in close contact, in alarm work
Under position, the second end face pushes away the inner wall step surface by alarm piston.
2. safety-type alarm whistle as described in claim 1, which is characterized in that the outer wall of the whistle body is equipped with external screw thread, with
It is connect with the outer casing screw.
3. safety-type alarm whistle as described in claim 1, which is characterized in that be equipped with sealing ring between the whistle body and shell.
4. safety-type alarm whistle as described in claim 1, which is characterized in that the whistle core is threadedly coupled with whistle body, the whistle
Locking nut is also arranged with outside core.
5. safety-type alarm whistle as described in claim 1, which is characterized in that be equipped with first between the whistle core and alarm piston
Spring, first spring apply the pressure for making alarm piston that sealing piston be pushed to leave the inner wall step surface to alarm piston
Power.
6. safety-type alarm whistle as described in claim 1, which is characterized in that the sealing piston there is non-metallic part so that
The second end face has the non-metal portion that can be in close contact with inner wall step surface.
7. safety-type alarm whistle as described in claim 1, which is characterized in that be equipped with sealing between the whistle body and alarm piston
Circle.
8. the safety-type alarm whistle as described in any one of claim 1-7, which is characterized in that be equipped with second in the chamber
Spring, the second spring are arranged to apply elastic force to the first end face of sealing piston.
9. safety-type alarm whistle as described in claim 1, which is characterized in that the shell has to be threadedly coupled with high-voltage tube
Interface.
10. safety-type alarm whistle as described in claim 1, which is characterized in that be equipped with sealing between the shell and high-voltage tube
Circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821365913.3U CN208722562U (en) | 2018-08-23 | 2018-08-23 | A kind of safety-type alarm whistle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821365913.3U CN208722562U (en) | 2018-08-23 | 2018-08-23 | A kind of safety-type alarm whistle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208722562U true CN208722562U (en) | 2019-04-09 |
Family
ID=65979179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821365913.3U Active CN208722562U (en) | 2018-08-23 | 2018-08-23 | A kind of safety-type alarm whistle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208722562U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111330183A (en) * | 2020-04-03 | 2020-06-26 | 上海宝亚安全装备股份有限公司 | Head-up display device for air respirator mask and using method thereof |
-
2018
- 2018-08-23 CN CN201821365913.3U patent/CN208722562U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111330183A (en) * | 2020-04-03 | 2020-06-26 | 上海宝亚安全装备股份有限公司 | Head-up display device for air respirator mask and using method thereof |
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