CN108561560A - A kind of selector valve for preventing valve body piston stuck - Google Patents
A kind of selector valve for preventing valve body piston stuck Download PDFInfo
- Publication number
- CN108561560A CN108561560A CN201810329333.7A CN201810329333A CN108561560A CN 108561560 A CN108561560 A CN 108561560A CN 201810329333 A CN201810329333 A CN 201810329333A CN 108561560 A CN108561560 A CN 108561560A
- Authority
- CN
- China
- Prior art keywords
- valve body
- piston
- intake duct
- air intake
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/58—Pipe-line systems
- A62C35/68—Details, e.g. of pipes or valve systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded
Abstract
A kind of selector valve for preventing valve body piston stuck includes mainly：Bonnet, bottom flange, valve body, core assembly and driving device；The core assembly includes piston, resetting spring and end socket；The end socket includes fixed plug, cushion seal circle and capping, the fixed plug bottom connects resetting spring, the resetting spring other end is connect with lower valve body, the cushion seal circle is located between fixed plug and capping, this selector valve structure design science, good airproof performance, can prevent valve body piston stuck or inner pressure of air cylinder is too high to open.
Description
Technical field
The present invention relates to fire-extinguishing apparatus field more particularly to a kind of selector valves for preventing valve body piston stuck.
Background technology
Selector valve is a kind of common fire-extinguishing apparatus, and selector valve is mounted on header, and import is connect with header, outlet
It is connect with extinguishing chemical conveyance conduit.Selector valve is mainly used for controlling extinguishing chemical flow direction in combined distribution system, ensures fire extinguishing
Agent enters the protection zone that fire occurs, and is instructed when alarm sends out fire extinguishing, is on valve release and starts gas, it is logical to start gas
It crosses startup pipeline and opens corresponding selector valve and container value（Bottle valve）, extinguishing chemical is discharged, fire extinguishing is implemented.
There are following problems for selector valve currently on the market：First, valve body and cylinder are split settings, and the two uses
It is threadedly coupled, when spool impacts, screw thread, which is squeezed, to deform, and causes seizure of piston, if spool is axial close with valve body use
Envelope mode then needs higher air pressure that could open；Second, inner pressure of air cylinder is excessively high, in case of emergency occurs, and can not open
The case where.
Chinese patent CN106090396A discloses a kind of integral type selector valve, and cooperation can be connect with driving device, selection
Valve includes valve body, can be equipped with air inlet and gas outlet in the piston and return unit that are moved in valve body, the valve body；The piston
It is sealedly attached in valve body, the first space, the air inlet and the first sky can be formed between valve interior wall at the top of the piston
Between be connected, the valve body be equipped with connection the first space and driving device first passage；In the lower part and valve body of the piston
Second space is formed between wall, the valve body is equipped with the second channel of connection second space and driving device；The piston bottom
Forming third space between portion and valve body, equipped with buffer structure in the third space, the characteristics of the invention is that opening force is smaller,
Good seal performance；The invention is passed through gas using the first space, piston after entering second space into driving device and then gas
It moves downward, third space is communicated with atmospheric pressure plays buffering reset response, while buffer structure is equipped in third space.This
Kind selector valve, structure is more complicated, and dismounting and change is not easy.
Invention content
The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, provide a kind of scientific structure design, sealing
Property is good, and valve body piston can be prevented stuck or inner pressure of air cylinder is too high to open.
Following technical scheme is provided to realize the present invention：A kind of selector valve for preventing valve body piston stuck includes mainly：On
Valve deck, bottom flange, valve body, core assembly and driving device；The bonnet, and bottom flange are located at the both ends of core assembly, described
Core assembly includes piston, resetting spring and end socket；The piston base is recessed inwardly to form spacing zone, and the resetting spring is set
In in spacing zone；The end socket includes fixed plug, cushion seal circle and capping, and the fixed plug bottom connects resetting spring, multiple
The position spring other end is connect with lower valve body, and the cushion seal circle is located between fixed plug and capping, and upper valve is stretched into the capping
Lid, cushion seal circle center position is additionally provided with buffer air bag；The upper piston area forms the first atmospheric pressure cavity, piston with valve body
Middle part forms the second atmospheric pressure cavity with valve body, and piston lower portion forms third atmospheric pressure cavity with valve body；The valve body and the first atmospheric pressure cavity phase
Corresponding side wall is equipped with the first air intake duct, and valve body side wall corresponding with the second atmospheric pressure cavity is equipped with the second air intake duct,
Valve body side wall corresponding with third atmospheric pressure cavity be equipped with third air intake duct, first air intake duct, the second air intake duct and
Not intercommunication between third air intake duct；The driving device includes air inlet air flue and manually boots dress on air inlet air flue
It sets, the air inlet air flue is connect with the first air intake duct, the second air intake duct and third air intake duct respectively.
Preferably, the manual start device is manual ball valve.
Preferably, the air inlet air flue and the first air intake duct junction are additionally provided with driving gas feed.Preferably, institute
It states cushion seal circle center to be recessed inwardly, material is rubber.
Preferably, the bonnet, is equipped with connection screw thread with bottom flange inner wall.
Usefulness of the present invention：First, valve body is all made of with bonnet, and bottom flange and is threadedly coupled, dismounting and change side
Just, while using the end enclosure structure of fixed plug, cushion seal circle, buffer air bag and capping it can effectively slow down end socket to upper valve
The impact of lid prevents seizure of piston to prevent deformed threads；The design of simultaneous buffering air bag can protect cushion seal again
Circle increases the service life of cushion seal circle；The second, the second atmospheric pressure cavity can play buffering during piston moves up and down
Effect.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
In figure：1 be bonnet, 2 be bottom flange, 3 be valve body, 4 be core assembly, 4.1 be piston, 4.2 be resetting spring,
4.3 be end socket, 4.3.1 be fixed plug, 4.3.2 be that be capping, 4.3.4 be buffer air bag, 5 be driving by cushion seal circle, 4.3.3
Device, 5.1 be manual ball valve, 5.2 be air inlet air flue, 5.3 be driving gas feed, 6 be the first atmospheric pressure cavity, 6.1 be first into
Air flue, 7 be the second atmospheric pressure cavity, 7.1 be the second air intake duct, 8 be third atmospheric pressure cavity, 8.1 be third air intake duct.
Specific implementation mode
A kind of selector valve for preventing valve body piston stuck includes mainly：Bonnet, 1, bottom flange 2, valve body 3, core assembly 4
With driving device 5；The bonnet, 1 and bottom flange 2 are located at the both ends of core assembly 4, the core assembly 4 include piston 4.1,
Resetting spring 4.2 and end socket 4.3；4.1 bottom of the piston is recessed inwardly to form spacing zone, and the resetting spring 4.2 is placed in limit
In the area of position；The end socket 4.3 includes fixed plug 4.3.1, cushion seal circle 4.3.2 and capping 4.3.3, the fixed plug 4.3.1
Bottom connects resetting spring 4.2, and 4.2 other end of resetting spring is connect with lower valve body 2, and the cushion seal circle 4.3.2 is located at solid
Surely it fills between 4.3.1 and capping 4.3.3, the capping 4.3.3 stretches into bonnet, 1, the centers cushion seal circle 4.3.2
It is additionally provided with buffer air bag 4.3.4；4.1 top of the piston forms the first atmospheric pressure cavity 6,4.1 middle part of piston and valve body 3 with valve body 3
The second atmospheric pressure cavity 7 is formed, 4.1 lower part of piston forms third atmospheric pressure cavity 8 with valve body 3；The valve body 3 and the first atmospheric pressure cavity 6 are opposite
The side wall answered is equipped with the first air intake duct 6.1, and the side wall corresponding with the second atmospheric pressure cavity 7 of the valve body 3 is equipped with the second air inlet
Road 7.1, the side wall corresponding with third atmospheric pressure cavity 8 of the valve body 3 are equipped with third air intake duct 8.1, first air intake duct
6.1, not intercommunication between the second air intake duct 7.1 and third air intake duct 8.1；The driving device 5 includes air inlet air flue 5.2 and installation
Manual start device on air inlet air flue 5.2, the air inlet air flue 5.2 respectively with the first air intake duct 6.1, the second air intake duct
7.1 and third air intake duct 8.1 connect, the manual start device be manual ball valve 5.1, the air inlet air flue 5.2 and first into
6.1 junction of air flue is additionally provided with driving gas feed 5.3, and the centers cushion seal circle 4.3.2 are recessed inwardly, and material is rubber
Glue, the bonnet, 1 are equipped with connection screw thread with 2 inner wall of bottom flange.
This selector valve operation principle：When selector valve is closed, the second atmospheric pressure cavity 7 keeps the atmospheric pressure consistent with the external world, prevents
Only do not opened due to hypertonia in selector valve；It is instructed when alarm sends out fire extinguishing, is on valve release and starts gas, open
Body of taking offence enters the first atmospheric pressure cavity 6 by air inlet air flue 5.2, and air is pressed in the second atmospheric pressure cavity 7 and third atmospheric pressure cavity 8 at this time
Contracting, piston 4.1 move down, and end socket 4.3 is detached with bonnet, 1, and selector valve is opened；When needing to close selector valve, third gas
There is gas compressed that can push up piston 4.1 in pressure chamber 8 so that end socket 4.3 resets, and the second atmospheric pressure cavity 7 is in piston 4.1
Can play the role of buffering during moving up and down, the second air intake duct 7.1 and third air intake duct 8.1 respectively with air inlet air flue
5.2 connections, to the second atmospheric pressure cavity 7 and third atmospheric pressure cavity 8 is inflated or equilibrium air pressure；Buffer air bag 4.3.4 can be prevented
Cushion seal circle 4.3.2 is deformed because air pressure is excessive, and can slow down impact when end socket 4.3 resets to bonnet, 1.
The invention is not limited in the selector valves involved by above-mentioned specific implementation mode, and those skilled in the art are also
It can make a variety of variations accordingly, but any be equal or similar variation should all be covered in the claims in the present invention with of the invention
In range.
Claims (5)
1. a kind of selector valve for preventing valve body piston stuck, it is characterised in that：Include mainly：Bonnet, bottom flange, valve body, valve
Core assembly and driving device；The bonnet, and bottom flange are located at the both ends of core assembly, and the core assembly includes piston, answers
Position spring and end socket；The piston base is recessed inwardly to form spacing zone, and the resetting spring is placed in spacing zone；The end socket
Including fixed plug, cushion seal circle and capping, the fixed plug bottom connects resetting spring, the resetting spring other end and lower valve body
Connection, the cushion seal circle are located between fixed plug and capping, and bonnet, the cushion seal circle center are stretched into the capping
Position is additionally provided with buffer air bag；The upper piston area forms the first atmospheric pressure cavity with valve body, and piston middle part forms the second gas with valve body
Chamber, piston lower portion is pressed to form third atmospheric pressure cavity with valve body；Valve body side wall corresponding with the first atmospheric pressure cavity is equipped with first
Air intake duct, valve body side wall corresponding with the second atmospheric pressure cavity are equipped with the second air intake duct, the valve body and third atmospheric pressure cavity
Corresponding side wall is equipped with third air intake duct, not intercommunication between first air intake duct, the second air intake duct and third air intake duct；
The driving device includes air inlet air flue and the manual start device on air inlet air flue, and the air inlet air flue is respectively with
One air intake duct, the second air intake duct are connected with third air intake duct.
2. a kind of selector valve for preventing valve body piston stuck according to claim 1, it is characterised in that：It is described to manually boot
Device is manual ball valve.
3. a kind of selector valve for preventing valve body piston stuck according to claim 1, it is characterised in that：The air inlet air flue
It is additionally provided with driving gas feed with the first air intake duct junction.
4. a kind of selector valve for preventing valve body piston stuck according to claim 1, it is characterised in that：The cushion seal
Circle center is recessed inwardly, and material is rubber.
5. a kind of selector valve for preventing valve body piston stuck according to claim 1, it is characterised in that：The bonnet, with
Bottom flange inner wall is equipped with connection screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810329333.7A CN108561560A (en) | 2018-04-13 | 2018-04-13 | A kind of selector valve for preventing valve body piston stuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810329333.7A CN108561560A (en) | 2018-04-13 | 2018-04-13 | A kind of selector valve for preventing valve body piston stuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108561560A true CN108561560A (en) | 2018-09-21 |
Family
ID=63534910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810329333.7A Pending CN108561560A (en) | 2018-04-13 | 2018-04-13 | A kind of selector valve for preventing valve body piston stuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108561560A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529630A (en) * | 2019-08-19 | 2019-12-03 | 重庆懿熙品牌策划有限公司 | A kind of commutation valve group and its air automated collection systems |
| CN110701311A (en) * | 2019-09-27 | 2020-01-17 | 陕西新竹防务设备有限公司 | Normally closed selector valve device for fire extinguisher |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2438880Y (en) * | 2000-05-26 | 2001-07-11 | 西安新竹防灾救生设备有限公司 | Differential pressure selective valve |
| CN202660038U (en) * | 2012-06-20 | 2013-01-09 | 白生雨 | Isobaric selector valve |
| CN203442155U (en) * | 2013-09-12 | 2014-02-19 | 尹西峰 | Area selecting valve for gas fire-extinguishing system |
| CN204004715U (en) * | 2014-07-30 | 2014-12-10 | 安季安全科技（上海）有限公司 | Selector valve |
| CN104390045A (en) * | 2014-11-17 | 2015-03-04 | 天津意安消防设备有限公司 | Automatic resetting selection valve for straight-through gas extinguishing system |
| CN105276269A (en) * | 2015-11-02 | 2016-01-27 | 艾赛孚消防科技（天津）有限公司 | Selector valve used for inert gas fire extinguishing system |
| CN208107171U (en) * | 2018-04-13 | 2018-11-16 | 宜兴市锦辉铜材有限公司 | A kind of selector valve for preventing valve body piston stuck |
-
2018
- 2018-04-13 CN CN201810329333.7A patent/CN108561560A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2438880Y (en) * | 2000-05-26 | 2001-07-11 | 西安新竹防灾救生设备有限公司 | Differential pressure selective valve |
| CN202660038U (en) * | 2012-06-20 | 2013-01-09 | 白生雨 | Isobaric selector valve |
| CN203442155U (en) * | 2013-09-12 | 2014-02-19 | 尹西峰 | Area selecting valve for gas fire-extinguishing system |
| CN204004715U (en) * | 2014-07-30 | 2014-12-10 | 安季安全科技（上海）有限公司 | Selector valve |
| CN104390045A (en) * | 2014-11-17 | 2015-03-04 | 天津意安消防设备有限公司 | Automatic resetting selection valve for straight-through gas extinguishing system |
| CN105276269A (en) * | 2015-11-02 | 2016-01-27 | 艾赛孚消防科技（天津）有限公司 | Selector valve used for inert gas fire extinguishing system |
| CN208107171U (en) * | 2018-04-13 | 2018-11-16 | 宜兴市锦辉铜材有限公司 | A kind of selector valve for preventing valve body piston stuck |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529630A (en) * | 2019-08-19 | 2019-12-03 | 重庆懿熙品牌策划有限公司 | A kind of commutation valve group and its air automated collection systems |
| CN110529630B (en) * | 2019-08-19 | 2021-10-15 | 苏州市啸峰环保科技有限公司 | Reversing valve group and automatic air acquisition system thereof |
| CN110701311A (en) * | 2019-09-27 | 2020-01-17 | 陕西新竹防务设备有限公司 | Normally closed selector valve device for fire extinguisher |
| CN110701311B (en) * | 2019-09-27 | 2022-04-29 | 陕西新竹防务设备有限公司 | Normally closed selector valve device for fire extinguisher |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |