CN105363162A - One-way valve for release pipe of inert gas fire-extinguishing system - Google Patents
One-way valve for release pipe of inert gas fire-extinguishing system Download PDFInfo
- Publication number
- CN105363162A CN105363162A CN201510724185.5A CN201510724185A CN105363162A CN 105363162 A CN105363162 A CN 105363162A CN 201510724185 A CN201510724185 A CN 201510724185A CN 105363162 A CN105363162 A CN 105363162A
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- China
- Prior art keywords
- check valve
- way valve
- valve body
- inert gas
- hole
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Abstract
The invention relates to a one-way valve for a release pipe of an inert gas fire-extinguishing system. The one-way valve is characterized in that the one-way valve comprises a one-way valve body and a sealing ball; a center hole is formed in the one-way valve body and is a step hole formed by two large round holes and a small round hole between the large round holes; the sealing ball is arranged on the small round hole in the center hole; a through hole is formed in the one-way valve body in the radial direction of the one-way valve body and connected with a stop pin in an inserting manner; and a cylindrical pin is located at the upper end in the upward movement direction of the sealing ball. The one-way valve has the beneficial effects that compared with the prior art, the structure of the stop pin and the nylon sealing ball is adopted, the structure is simple, rusting is avoided, the sealing performance is good, movement is flexible, and reliability is greatly improved.
Description
Technical field
The invention belongs to valve, particularly relate to a kind of check valve for inert gas fire-fighting system releasing tube.
Background technology
The gas storage cylinder container value liberation port of inert gas fire-fighting system is connected with release hose, is connected with check valve between release hose outlet and the header be connected.Check valve can ensure gas unidirectional conducting when only having connected steel cylinder to discharge.The check valve of current use all adopts the structure of snap close+spring, and structure is relatively complicated, the fault causing blocking of easily getting rusty.This kind of check valve be applied to play a part at secure context in inert gas fire-fighting system very important.When certain steel cylinder in system needs maintenance and pulls down, the connection of container value and release hose must be taken apart.If now system is triggered by fire alarm; steel cylinder is caused to discharge; if have fault because overhauling the check valve of steel cylinder release hose pulled down, inert gas or will leak from this releasing tube, serious situation is by not enough for the fire extinguishing air pressure causing spurting protection subregion and do not reach the invalid of extinguishing effect and spurt.
Summary of the invention
The present invention is to overcome deficiency of the prior art, provides a kind of check valve for inert gas fire-fighting system releasing tube, avoids, because getting rusty, causing the fault blocked, good seal performance.
The present invention for achieving the above object, be achieved through the following technical solutions, a kind of check valve for inert gas fire-fighting system releasing tube, it is characterized in that: comprise check valve body and ball sealer, described check valve body is provided with centre bore, described centre bore forms shoulder hole by the small sircle hole of two big holes and centre thereof, small sircle hole in described centre bore is equipped with ball sealer, check valve body is radially provided with through hole, described through hole is plugged with backing pin, and described straight pin is positioned at ball sealer and moves upward upper end, direction.
Small sircle hole upper port in described centre bore is provided with kisses with ball sealer the chamfering connect.
Described ball sealer adopts nylon material to make.
Described check valve body side is provided with the external screw thread be spirally connected with header, and opposite side is provided with and exports with release hose the internal thread be spirally connected.
The internal thread of described check valve body is taper pipe thread.
Beneficial effect: compared with prior art, the present invention adopts the structure of shelves pin+sealed nylon ball, and structure is simple, avoids and gets rusty, good seal performance, be active in one's movements, significantly improve reliability.
Accompanying drawing explanation
Fig. 1 is
In figure: 1 check valve body, 2, ball sealer, 3, shoulder hole, 4, backing pin, 5, sealing cone mouth.
Detailed description of the invention
Below in conjunction with preferred embodiment, to according to detailed description of the invention provided by the invention, details are as follows: embodiment
Refer to accompanying drawing, present embodiments provide a kind of check valve for inert gas fire-fighting system releasing tube, comprise check valve body 1 and ball sealer 2, described check valve body is provided with centre bore, described centre bore forms shoulder hole 3 by the small sircle hole of two big holes and centre thereof, and the small sircle hole in described centre bore is equipped with ball sealer, and check valve body is radially provided with through hole, described through hole is plugged with backing pin 4, and described straight pin is positioned at ball sealer and moves upward upper end, direction.Small sircle hole upper port in described centre bore is provided with kisses with ball sealer the chamfering connect, and forms sealing cone mouth 5.Described ball sealer adopts nylon material to make.Described check valve body side is provided with the external screw thread be spirally connected with header, and opposite side is provided with and exports with release hose the internal thread be spirally connected.The internal thread of described check valve body is taper pipe thread.
The course of work: utilize release hose vertically to install, ball sealer drops in the sealing cone mouth in check valve naturally.When the steel cylinder that check valve connects therewith discharges, ball sealer is washed open by gas from bottom to top, forward conduction, and shelves pin then blocks ball sealer, does not allow it be taken away by air-flow.Once gas bomb air release, air pressure acts on downwards on ball sealer, and ball sealer and conical surface seal mouth seal, and Aerodynamic Inverse acts on to cut-off.
Above-mentioned detailed description of this kind of check valve for inert gas fire-fighting system releasing tube being carried out with reference to embodiment; illustrative instead of determinate; several embodiments can be listed according to institute's limited range; therefore in the change do not departed under general plotting of the present invention and amendment, should belong within protection scope of the present invention.
Claims (5)
1. the check valve for inert gas fire-fighting system releasing tube, it is characterized in that: comprise check valve body and ball sealer, described check valve body is provided with centre bore, described centre bore forms shoulder hole by the small sircle hole of two big holes and centre thereof, small sircle hole in described centre bore is equipped with ball sealer, check valve body is radially provided with through hole, and described through hole is plugged with backing pin, and described straight pin is positioned at ball sealer and moves upward upper end, direction.
2. the check valve for inert gas fire-fighting system releasing tube according to claim 1, is characterized in that: the small sircle hole upper port in described centre bore is provided with kisses with ball sealer the chamfering connect.
3. the check valve for inert gas fire-fighting system releasing tube according to claim 1 and 2, is characterized in that: described ball sealer adopts nylon material to make.
4. the check valve for inert gas fire-fighting system releasing tube according to claim 1, is characterized in that: described check valve body side is provided with the external screw thread be spirally connected with header, and opposite side is provided with and exports with release hose the internal thread be spirally connected.
5. the check valve for inert gas fire-fighting system releasing tube according to claim 4, is characterized in that: the internal thread of described check valve body is taper pipe thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510724185.5A CN105363162A (en) | 2015-10-30 | 2015-10-30 | One-way valve for release pipe of inert gas fire-extinguishing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510724185.5A CN105363162A (en) | 2015-10-30 | 2015-10-30 | One-way valve for release pipe of inert gas fire-extinguishing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105363162A true CN105363162A (en) | 2016-03-02 |
Family
ID=55366098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510724185.5A Pending CN105363162A (en) | 2015-10-30 | 2015-10-30 | One-way valve for release pipe of inert gas fire-extinguishing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105363162A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506532A (en) * | 2018-06-08 | 2018-09-07 | 珠海市思卡净化技术有限公司 | A kind of air outlet valve of double ball sealings |
| CN109899570A (en) * | 2019-04-08 | 2019-06-18 | 上海易扣精密件制造有限公司 | A kind of check valve can control coolant liquid one-way flow |
-
2015
- 2015-10-30 CN CN201510724185.5A patent/CN105363162A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506532A (en) * | 2018-06-08 | 2018-09-07 | 珠海市思卡净化技术有限公司 | A kind of air outlet valve of double ball sealings |
| CN109899570A (en) * | 2019-04-08 | 2019-06-18 | 上海易扣精密件制造有限公司 | A kind of check valve can control coolant liquid one-way flow |
| CN109899570B (en) * | 2019-04-08 | 2024-02-27 | 上海易扣精密件制造有限公司 | One-way valve capable of controlling one-way flow of cooling liquid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160302 |
|
| WD01 | Invention patent application deemed withdrawn after publication |