CN201551751U - Automatic switching escape device - Google Patents
Automatic switching escape device Download PDFInfo
- Publication number
- CN201551751U CN201551751U CN 200920070893 CN200920070893U CN201551751U CN 201551751 U CN201551751 U CN 201551751U CN 200920070893 CN200920070893 CN 200920070893 CN 200920070893 U CN200920070893 U CN 200920070893U CN 201551751 U CN201551751 U CN 201551751U
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- CN
- China
- Prior art keywords
- main channel
- subaisle
- automatic switching
- channel
- valve
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- Expired - Lifetime
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Abstract
The utility model introduces an automatic switching escape device, which is matched with a long tube movable air supply source. The automatic switching escape device comprises a valve body; a main channel and an auxiliary channel are arranged on the valve body; an automatic switching device used for switching the channels is arranged between the main channel and the auxiliary channel; when the automatic switching device is positioned in a first position, the main channel is operated, and the auxiliary channel is switched off; when the automatic switching device is positioned in a second position, the main channel is switched off, and the auxiliary channel is operated; one-way valves are arranged inside both the main channel and the auxiliary channel; and the main channel and the auxiliary channel are respectively communicated with air supply valve connectors. The automatic switching escape device can also comprises an alarm whistle which is arranged on the auxiliary channel; and when the automatic switching device is positioned in the second position, the alarm whistle is communicated with the auxiliary channel. When the air in the main channel is used up or unexpected air stopping condition happens, the automatic switching escape device can automatically switch on the auxiliary channel communicated with a backup air cylinder to begin to supply air, so as to achieve the function of the automatic switching of the air supply channels; in addition, the automatic switching escape device gives the alarm while the automatic switching escape device automatically switches on the auxiliary channel communicated with the backup air cylinder to begin to supply air.
Description
Technical field
The utility model relates to the correlative technology field of the equipment of escaping, and especially a kind of and long tube moves the automatic conversion escape apparatus that air supply source is used.
Background technology
Automatically the conversion escape apparatus designs for the user uses in long working or small space.It cooperates mobile air supply source or air respiratorresuscitator to use.When the user needs long distance work, as: heavy duty service, small space operation etc., this moment, mobile air supply source was far away from user's distance, when the compressed air in the mobile air supply source use up or long tube by after the accident blocking-up, at this moment changing escape apparatus automatically will open bailout gas automatically and begin air feed, and give the alarm, remind the user to lose no time to withdraw the scene.
But existing and long tube moves the technical problem that escape apparatus that air supply source is used exists: the most function singleness of escape apparatus, and not conversion and warning device are automatically changed the converter complex operation of escape apparatus automatically, and product reliability is poor.Can't guarantee the security protection of user under unexpected situation.
The utility model content
Exist the defective of not having conversion automatically and automatic warning function at prior art, the purpose of this utility model provides a kind of automatic conversion escape apparatus, this escape apparatus can have auto-conversion function and long tube to move air supply source to be used the simple to operate of its converter, the reliability height.Can realize automatic warning function, may be implemented in the safeguard protection under the fortuitous event.
In order to achieve the above object, a kind of automatic conversion escape apparatus that the utility model provides, comprise valve body, valve body is provided with a main channel and a subaisle, be provided with one between described main channel and the subaisle and be used for the automatic switch that passage switches, when automatic switch is positioned at primary importance, main channel work, subaisle cuts off, when automatic switch was positioned at the second place, the main channel cut off, subaisle work, all be provided with check valve in described main channel and the subaisle, main channel and subaisle are communicated with a steam supply valve joint respectively.
Preferably, described automatic switch is one to be arranged at the moveable piston between main channel and the subaisle.
Preferably, be provided with check valve in the described moveable piston cavity, conducting direction is that the main channel is to subaisle.
Preferably, the end face that is positioned at main channel one end of described moveable piston is greater than the end face that is positioned at subaisle one end.
Preferably, described main channel connects a left intake valve, is used for and being connected of main steam line.
Preferably, described subaisle connects a right intake valve, is used for and being connected of secondary steam line.
Preferably, also comprise a warning whistle, be arranged on the subaisle that when automatic switch was positioned at the second place, the warning whistle was communicated with subaisle.
Preferably, also comprise an end cap, be arranged between valve body and the steam supply valve joint, which is provided with a gas channel, be communicated with main channel, subaisle and steam supply valve joint respectively.
The utility model makes it compared with prior art owing to adopted above technical scheme, has the following advantages and good effect:
The utility model by a relay piston is set in converter inside and in the main channel and subaisle check valve is set respectively, make and to use up or to occur under the situation that accident dies when the gas in the main channel, can open the subaisle that communicates with bailout bottle automatically and begin air feed, thereby reach the function of automatic conversion air supply channel; When beginning air feed, the subaisle of opening automatically and bailout bottle communicates to give the alarm by the warning whistle that is arranged on the subaisle in addition.Change the conversion opening ways of manual switch device into automatic conversion opening ways, and increased the function of sending auto-alarm-signal keying device after the automatic conversion, improved comprehensive technical performance and engineering reliability.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, and illustrative examples of the present utility model and explanation thereof are used to explain the utility model, do not constitute improper qualification of the present utility model.
In the accompanying drawings:
Fig. 1 is the structural representation of automatic switch of the present utility model when being positioned at primary importance.
Fig. 2 is the structural representation of automatic switch of the present utility model when being positioned at the second place.
Drawing reference numeral:
| 1 | |
2 | Left side active joint |
| 3 | Valve body | 4 | Left |
| 5 | Left side joint O shape circle | 6 | Left side intake valve |
| 7 | Left side joint back-up |
8 | End cap |
| 9 | The main |
10 | Main body O shape circle |
| 11 | The check |
12 | The check |
| 13 | The |
14 | |
| 15 | End cap interface O shape circle | 16 | Relay piston |
| 17 | The |
18 | |
| 19 | The bailout |
20 | |
| 21 | Right |
22 | Right connector |
| 23 | The right connector back-up ring | 24 | Right intake valve |
| 25 | The check |
26 | The |
| 27 | Warning |
28 | The big O shape circle of |
| 29 | The little O shape circle of |
30 | The piston one-way valve spring |
| 1 | |
2 | Left side |
| 31 | Piston check |
32 | Piston check |
| 33 | Piston screw |
The specific embodiment
Specifically introduce a kind of preferred embodiment of the present utility model below in conjunction with accompanying drawing 1,2.
As shown in Figure 1, behind the valve opening of main air supply source, gas enters the main channel of valve body 3 via main steam line 1, and main steam line is by withholding an end that is connected to left intake valve 4 at the left active joint 2 of main air supply hose one end, utilize left joint O shape circle 5 sealings, with left joint back-up ring 7 location.Left side intake valve 4 utilizes left intake valve O shape circle 6 sealings by being threadedly connected on the valve body 3.Gas upwards promotes to enter in the gas passage of end cap 8 after check valve steel ball 12 is opened check valve by the pressure of gas by valve body 3, and end cap 8 is connected with valve body 3 by main body attachment screw 9, utilizes 10 sealings of main body O shape circle.Check valve is made up of check valve sealing ring 11, check valve steel ball 12 and turriform spring 13.Gas enters steam supply valve snap joint 14 via the gas passage of end cap 8.This moment the user of service can breathe by the steam supply valve and the face shield that are connected with snap joint, use be the gas at gas source place.Snap joint 14 is connected with end cap 8 by screw thread, utilizes between end cap interface O shape circle 15 and the end cap to seal.Because the gas pressure in the main channel acts on the left end of relay piston 16, it is advanced to the right simultaneously, the rubber inserts 17 on relay piston 16 right sides is adjacent to sealing with right intake valve 18, i.e. primary importance.Relay piston utilizes sealing between the big O shape circle 28 of piston and little O shape circle 29 of piston and the valve body 3.The gas of main air supply source is opened conversion piston check valve by the check valve steel ball 31 in the pressure promotion relay piston 16 simultaneously.Check valve in the conversion piston is made up of piston one-way valve spring 30, piston check valve sealing ring 32 and piston screw 33.Gas is input to by the piston in the check valve in the passage of bailout gas, can keep the pressure balance in the major-minor passage like this, its objective is the pressure influence that is not subjected to bailout gas for the opening pressure value of relay piston, guarantees design pressure unlatching value.
Open bailout bottle cylinder valve 19 this moment, make bailout bottle be in opening, the gas of bailout gas enters right intake valve 18 via secondary steam line 20, secondary steam line is connected with right intake valve 18 by the right active joint of withholding at secondary air supply hose one end 21, utilize 22 sealings of right connector O shape circle, with right connector back-up ring 23 location.With being threaded, utilize right intake valve O shape circle 24 sealings between right intake valve 18 and the valve body 3.Gas enters in the gas passage of valve body 3 through right intake valve 18, and act on the right side of relay piston 16, because the right side of relay piston 16 is less than the left side, so under the situation equal of main channel with the subaisle internal pressure, stressed greater than the right of the relay piston left side stressed, therefore relay piston still with subaisle in 21 sealings of right active joint, bailout gas wouldn't air feed.User of service at this moment portability equipment carries out work.What breathe is the gas at gas source place.
As shown in Figure 2, when the gas of main air supply source is used up or after gas source place accident dies, this moment, the pressure of valve body 3 interior main air supply channels descended, the power that acts on relay piston 16 left sides is more and more littler, up to less than the power that acts on relay piston 16 right sides, at this moment the bailout gas in the subaisle will advance relay piston 16 left, thereby open the sealing of relay piston 16 and right intake valve 18, it is the second place, beginning is air feed in valve body 3, gas is opened check valve by the subaisle promotion check valve steel ball 25 of valve body 3, enters steam supply valve snap joint 14 via end cap 8 and breathes for the user.And close check valve steel ball 7 with the pressure of bailout gas, avoid bailout gas to leak.Simultaneously to the warning whistle of valve body 3 belows 26 air feed, open the warning whistle and give the alarm when bailout gas is opened, remind user master's air supply source to stop air feed.Warning whistle assembly is connected with valve body 3 with warning whistle packing ring 27 by screw thread.
So far change the process that escape apparatus has been finished automatic conversion and given the alarm automatically.
Should be noted that at last: above embodiment only is not intended to limit in order to the explanation the technical solution of the utility model; Although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characterictic is equal to replacement the specific embodiment of the present utility model; And not breaking away from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that the utility model asks for protection.
Claims (8)
1. change escape apparatus automatically for one kind, comprise valve body (3), it is characterized in that: valve body (3) is provided with a main channel and a subaisle, is provided with one between described main channel and the subaisle and is used for the automatic switch that passage switches, when automatic switch is positioned at primary importance, main channel work, subaisle cuts off, when automatic switch is positioned at the second place, the main channel cuts off, subaisle work all is provided with check valve in described main channel and the subaisle, main channel and subaisle are communicated with a steam supply valve joint respectively.
2. automatic conversion escape apparatus as claimed in claim 1 is characterized in that:
Described automatic switch is one to be arranged at the moveable piston between main channel and the subaisle.
3. automatic conversion escape apparatus as claimed in claim 2 is characterized in that:
Be provided with a check valve in the cavity of described moveable piston, conducting direction is that the main channel is to subaisle.
4. automatic conversion escape apparatus as claimed in claim 3 is characterized in that:
The end face that is positioned at main channel one end of described moveable piston is greater than the end face that is positioned at subaisle one end.
5. automatic conversion escape apparatus as claimed in claim 4 is characterized in that:
Described main channel connects a left intake valve, is used for and being connected of main steam line.
6. automatic conversion escape apparatus as claimed in claim 5 is characterized in that:
Described subaisle connects a right intake valve, is used for and being connected of secondary steam line.
7. automatic conversion escape apparatus as claimed in claim 6 is characterized in that also comprising:
The one warning whistle is arranged on the subaisle, and when automatic switch was positioned at the second place, the warning whistle was communicated with subaisle.
8. automatic conversion escape apparatus as claimed in claim 7 is characterized in that: also comprise an end cap, be arranged between valve body (3) and the steam supply valve joint, which is provided with a gas channel, be communicated with main channel, subaisle and steam supply valve joint respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920070893 CN201551751U (en) | 2009-04-22 | 2009-04-22 | Automatic switching escape device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920070893 CN201551751U (en) | 2009-04-22 | 2009-04-22 | Automatic switching escape device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201551751U true CN201551751U (en) | 2010-08-18 |
Family
ID=42611424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920070893 Expired - Lifetime CN201551751U (en) | 2009-04-22 | 2009-04-22 | Automatic switching escape device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201551751U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103182152A (en) * | 2013-04-03 | 2013-07-03 | 抚顺抚运安仪救生装备有限公司 | Positive pressure air respirator for emergency rescue |
| CN103285537A (en) * | 2013-05-22 | 2013-09-11 | 上海宝亚安全装备有限公司 | Inhalation valve and breathing mask both with function of switching ambient air and air-bottle air |
| CN105864637A (en) * | 2014-09-23 | 2016-08-17 | Aiut有限责任公司 | Automatic cylinder changeover device and method for monitoring gas installation |
| CN107131326A (en) * | 2017-07-06 | 2017-09-05 | 轩维技术（北京）有限公司 | Switching valve |
| CN115634382A (en) * | 2022-10-26 | 2023-01-24 | 江苏海拓科技有限公司 | Rotary pulling type long tube air respirator |
-
2009
- 2009-04-22 CN CN 200920070893 patent/CN201551751U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103182152A (en) * | 2013-04-03 | 2013-07-03 | 抚顺抚运安仪救生装备有限公司 | Positive pressure air respirator for emergency rescue |
| CN103182152B (en) * | 2013-04-03 | 2016-01-20 | 抚顺抚运安仪救生装备有限公司 | Emergency management and rescue positive-pressure air respirator |
| CN103285537A (en) * | 2013-05-22 | 2013-09-11 | 上海宝亚安全装备有限公司 | Inhalation valve and breathing mask both with function of switching ambient air and air-bottle air |
| CN103285537B (en) * | 2013-05-22 | 2015-06-17 | 上海宝亚安全装备有限公司 | Inhalation valve and breathing mask both with function of switching ambient air and air-bottle air |
| CN105864637A (en) * | 2014-09-23 | 2016-08-17 | Aiut有限责任公司 | Automatic cylinder changeover device and method for monitoring gas installation |
| CN105864637B (en) * | 2014-09-23 | 2019-09-17 | 克莱斯工业公司 | Automated gas cylinder conversion equipment and method for monitoring gas apparatus |
| CN107131326A (en) * | 2017-07-06 | 2017-09-05 | 轩维技术（北京）有限公司 | Switching valve |
| CN115634382A (en) * | 2022-10-26 | 2023-01-24 | 江苏海拓科技有限公司 | Rotary pulling type long tube air respirator |
| CN115634382B (en) * | 2022-10-26 | 2023-05-12 | 江苏海拓科技有限公司 | Rotary pulling type long tube air respirator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100818 |
|
| CX01 | Expiry of patent term |