CN206252771U - Signal feedback device - Google Patents
Signal feedback device Download PDFInfo
- Publication number
- CN206252771U CN206252771U CN201621354961.3U CN201621354961U CN206252771U CN 206252771 U CN206252771 U CN 206252771U CN 201621354961 U CN201621354961 U CN 201621354961U CN 206252771 U CN206252771 U CN 206252771U
- Authority
- CN
- China
- Prior art keywords
- piston
- valve
- ring seals
- valve body
- spring
- 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.)
- Expired - Fee Related
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- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The utility model discloses a kind of signal feedback device, its valve body for including being provided with valve seat is provided with microswitch in the valve body, the inner chamber of valve body is provided with the action component coordinated with microswitch, and the action component includes：The pneumatic head piston being installed in input channel set by valve body and the piston being installed on by locating piece in body cavity, air spring is installed between the piston and pneumatic head piston, spring is installed between locating piece and piston, O-ring seals are installed between the head and body cavity wall of piston, plug screw is provided with the valve channel wall for installing pneumatic head piston, the extrusion spring that O-ring seals are resisted against valve interior wall is installed in the annular mounting groove of piston crown installation O-ring seals.The utility model can improve the sealing between piston and valve interior wall.
Description
Technical field
The utility model is related to fire-fighting equipment field, more particularly, to a kind of signal feedback suitable for gas extinguishing system
Device.
Background technology
Gas fire-extinguishing facility needs signal feedback device that the signal that gas discharges is fed back into controller, in order to controller
Corresponding warning signal is sent, and in existing signal feedback device, microswitch is touched by piston movement, to allow fine motion
Switch obtains the signal of gas release, but, generally need that o shape sealing rings, o shapes sealing are installed between piston and valve interior wall
Circle easily causes abrasion, and then easily cause the problem of partially sealed effect on driving birds is not good in piston repeatedly motion process.
Utility model content
The purpose of this utility model is to provide a kind of signal feedback device, and it can be improved between piston and valve interior wall
Sealing.
In order to solve the above technical problems, implementation method of the present utility model provides a kind of signal feedback device, it includes
The valve body of valve seat is installed, microswitch is installed in the valve body, the inner chamber of valve body is provided with the action coordinated with microswitch
Component, the action component includes：The pneumatic head piston that is installed in input channel set by valve body and installed by locating piece
Piston in body cavity, is provided with air spring between the piston and pneumatic head piston, installed between locating piece and piston
There is spring, O-ring seals are installed between the head and body cavity wall of piston, install on the valve channel wall of pneumatic head piston
It is provided with plug screw, it is characterised in that be provided with the annular mounting groove of piston crown installation O-ring seals and support O-ring seals
It is against the extrusion spring of valve interior wall.
Compared with prior art, it is close that a kind of signal feedback device that the utility model is provided can install piston crown
Seal is resisted against valve interior wall, even if abrasion occurs in sealing ring, now, due to the effect of extrusion spring, sealing ring can be allowed tight
Close is fitted on valve interior wall, it is to avoid the situation for poor sealing occur occurs.
Further, stripper plate is installed between extrusion spring and O-ring seals.
Brief description of the drawings
Fig. 1 is signal feedback device structural representation；
Fig. 2 is enlarged drawing at K in Fig. 1.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the utility model is realized are easy to understand, under
Face in conjunction with specific embodiments, is expanded on further the utility model.
Implementation method of the present utility model provides a kind of signal feedback device, its valve body for including being provided with valve seat 10
15, microswitch 4 is installed in the valve body 15, the Cross Recess Head Screw 3 at microswitch, the valve are shown in Fig. 1
Body left part is provided with outer urgent formula cable fixing head 1, and the signal of microswitch 4 is by being installed on outer urgent formula cable fixing head 1
RVV types cable 16 is exported, and RVV types cable 16 is provided with protective case 2, and the end of the RVV types cable 16 is provided with H type flexible wire clippers
17, the inner chamber of valve body 15 is provided with the action component coordinated with microswitch, and the action component includes：It is installed on defeated set by valve body
Enter the pneumatic head piston 12 in passage and the piston 14 in body cavity be installed on by locating piece 5, the piston with inflation
Air spring 13 is installed between head piston, spring 6 is installed, in the head and valve body of piston between locating piece 4 and piston 14
O-ring seals 7 are installed between cavity wall, plug screw 8 is provided with the valve channel wall for installing pneumatic head piston 12, the plug screw 8
O-ring seals 9 are provided with, the right end position of pneumatic head piston 12 installs and is equipped with O-ring seals 11, piston crown installs O shapes
The extrusion spring 18 that O-ring seals are resisted against valve interior wall is installed in the annular mounting groove of sealing ring.
Stripper plate 19 is installed referring to Fig. 2, between extrusion spring and O-ring seals, is worn at the top of O-ring seals
Afterwards, stripper plate, right stripper plate is promoted to promote O-ring seals to fill up abration position by extrusion spring, so as to keep lasting close
Effect is closed, and the left part of the O-ring seals, right part are contacted with the cell wall of annular mounting groove respectively, and O-ring seals
Top contacted with body cavity wall, so as to be effectively guaranteed the sealing effectiveness of total, be not in O-ring seals because
Occur sealing situation not in place for abrasion to occur.
When ductwork pressure enters into valve body from valve seat, pneumatic head piston, pneumatic head piston is promoted to pass through compressive charge spring
And then piston, piston compression spring 6 are promoted, and then microswitch is touched, microswitch is by this signal output to control system.
It will be understood by those skilled in the art that the respective embodiments described above are to realize specific implementation of the present utility model
Example, and in actual applications, can to it, various changes can be made in the form and details, without departing from spirit of the present utility model
And scope.
Claims (2)
1. a kind of signal feedback device, its valve body for including being provided with valve seat, are provided with microswitch in the valve body, valve body it is interior
Chamber is provided with the action component coordinated with microswitch, and the action component includes：It is installed on filling in input channel set by valve body
Gas head piston and the piston being installed on by locating piece in body cavity, are provided between the piston and pneumatic head piston and filled
Gas spring, is provided with spring between locating piece and piston, O-ring seals are provided between the head and body cavity wall of piston,
Plug screw is provided with the valve channel wall for installing pneumatic head piston, it is characterised in that the piston crown installs O-ring seals
The extrusion spring that O-ring seals are resisted against valve interior wall is installed in annular mounting groove.
2. signal feedback device according to claim 1, it is characterised in that between the extrusion spring and O-ring seals
Stripper plate is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621354961.3U CN206252771U (en) | 2016-12-12 | 2016-12-12 | Signal feedback device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621354961.3U CN206252771U (en) | 2016-12-12 | 2016-12-12 | Signal feedback device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206252771U true CN206252771U (en) | 2017-06-16 |
Family
ID=59029732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621354961.3U Expired - Fee Related CN206252771U (en) | 2016-12-12 | 2016-12-12 | Signal feedback device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206252771U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533827A (en) * | 2018-06-11 | 2018-09-14 | 浙江信达可恩消防实业有限责任公司 | A kind of initial signal feedback device for having pressure energy self-locking and energy hand-reset |
-
2016
- 2016-12-12 CN CN201621354961.3U patent/CN206252771U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533827A (en) * | 2018-06-11 | 2018-09-14 | 浙江信达可恩消防实业有限责任公司 | A kind of initial signal feedback device for having pressure energy self-locking and energy hand-reset |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170616 Termination date: 20171212 |