CN107631060A - A kind of swing check valve for being easy to observation - Google Patents
A kind of swing check valve for being easy to observation Download PDFInfo
- Publication number
- CN107631060A CN107631060A CN201610564144.9A CN201610564144A CN107631060A CN 107631060 A CN107631060 A CN 107631060A CN 201610564144 A CN201610564144 A CN 201610564144A CN 107631060 A CN107631060 A CN 107631060A
- Authority
- CN
- China
- Prior art keywords
- valve body
- bonnet
- changeable colour
- thing
- translucent cover
- 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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- Indication Of The Valve Opening Or Closing Status (AREA)
- Lift Valve (AREA)
Abstract
The present invention provides a kind of swing check valve for being easy to observation, including valve body, bonnet and flap, the bonnet is connected by bolt with the valve body, the bulge loop with valve body is provided with valve body, bulge loop passes through support and pin connection, screw is installed on bulge loop, the lower end of screw is connected with support, in pin fixation and valve body, and pass through rocking arm, nut is connected with flap, changeable colour thing is provided between the bonnet and valve body, the changeable colour thing is extended to outside the bonnet, the bonnet is externally provided with translucent cover, the translucent cover covers on the bonnet, valve body junction and changeable colour beyond the region of objective existence.Beneficial effects of the present invention are：Changeable colour thing is used between bonnet and valve body, and cover bonnet, valve body junction and changeable colour thing with translucent cover, changeable colour thing, which runs into medium, to change colour, depending on the medium that changeable colour thing transports according to pipeline, when there is seepage in stop valve, related personnel can in time have found, handle, and avoid medium pollution environment.
Description
Technical field
The invention belongs to pipe control apparatus field, more particularly to a kind of swing check valve for being easy to observation.
Background technology
A kind of strength by media flow of swing check valve automatically controls being turned on and off for flap, for preventing medium flows backwards in pipeline valve.When the medium forward flow in pipeline, the flap of check-valves is automatically turned in the presence of medium power, and when the medium reverse flow in pipeline, flap is closed automatically in the presence of medium power.The Opening pressure of common swing check valve flap is constant, when the pressure of the medium of forward flow reaches certain value, can just open flap.When swing check valve is used in the small pipeline of positive pressure medium, flap can be in the intermediate state fully opened with closing, for a long time in this way, the service life of swing check valve can be influenceed, after a period of time has been used, easily there is the situation of seepage with valve body junction in bonnet.For transport acidic or the pipeline of alkaline medium, even a little seepage also easily causes larger pollution to environment, and slight seepage is not easy to observe.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention provides a kind of swing check valve for being easy to observation, including valve body, bonnet and flap, the bonnet is connected by bolt with the valve body, the bulge loop with valve body is provided with valve body, bulge loop passes through support and pin connection, screw is installed on bulge loop, the lower end of screw is connected with support, in pin fixation and valve body, and pass through rocking arm, nut is connected with flap, it is characterized in that, changeable colour thing is provided between the bonnet and valve body, the changeable colour thing is extended to outside the bonnet, the bonnet is externally provided with translucent cover, the translucent cover covers on the bonnet, valve body junction and changeable colour beyond the region of objective existence.
A circle groove is provided with outside the valve body, bonnet, the translucent cover upper and lower ends are connected in the groove respectively
The changeable colour thing is PH test paper.
Beneficial effects of the present invention are：Changeable colour thing is used between bonnet and valve body, and cover bonnet, valve body junction and changeable colour thing with translucent cover, changeable colour thing, which runs into medium, to change colour, depending on the medium that changeable colour thing transports according to pipeline, when there is seepage in stop valve, related personnel can in time have found, handle, and avoid medium pollution environment.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Embodiment
The present invention is described in more detail below with reference to accompanying drawings, which show the preferred embodiments of the present invention, it should be appreciated that those skilled in the art can change invention described herein and still realize the advantageous effects of the present invention.Therefore, description below is appreciated that for the widely known of those skilled in the art, and is not intended as limitation of the present invention.
In figure, 1, valve body；2nd, bonnet；3rd, rocking arm；4th, flap；5th, changeable colour thing；6th, translucent cover.
As shown in Figure 1, the bonnet 2 is connected by bolt with the valve body 1, the bulge loop with the one of valve body 1 is provided with valve body 1, bulge loop passes through support and pin connection, screw is installed on bulge loop, the lower end of screw is connected with support, in pin fixation and valve body 1, and connected by rocking arm 3, nut and flap 4, changeable colour thing 5 is provided between the bonnet 2 and valve body 1, the changeable colour thing 5 is extended to outside the bonnet 2, and the bonnet 2 is externally provided with translucent cover 6, the translucent cover 6 cover on the valve 2 cover, the junction of valve body 1 and changeable colour beyond the region of objective existence 5.A circle groove is provided with outside the valve body 1, bonnet 2, the upper and lower ends of translucent cover 6 are connected in the groove respectively.If pipeline transportation medium is acid or akaline liquid, changeable colour thing 9 can use PH test paper.
The present invention is described in detail above by embodiment, but the content is only presently preferred embodiments of the present invention, it is impossible to be considered as the practical range for limiting the present invention.Any changes and modifications in accordance with the scope of the present application, all should still it belong within the patent covering scope of the present invention.
Claims (3)
- A kind of 1. swing check valve for being easy to observation, including valve body, bonnet and flap, the bonnet is connected by bolt with the valve body, the bulge loop with valve body is provided with valve body, bulge loop passes through support and pin connection, screw is installed on bulge loop, the lower end of screw is connected with support, in pin fixation and valve body, and pass through rocking arm, nut is connected with flap, it is characterized in that, changeable colour thing is provided between the bonnet and valve body, the changeable colour thing is extended to outside the bonnet, the bonnet is externally provided with translucent cover, the translucent cover covers on the bonnet, valve body junction and changeable colour beyond the region of objective existence.
- 2. a kind of swing check valve for being easy to observation as claimed in claim 1, it is characterised in that a circle groove is provided with outside the valve body, bonnet, the translucent cover upper and lower ends are connected in the groove respectively.
- 3. a kind of swing check valve for being easy to observation as claimed in claim 1, it is characterised in that the changeable colour thing is PH test paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610564144.9A CN107631060A (en) | 2016-07-18 | 2016-07-18 | A kind of swing check valve for being easy to observation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610564144.9A CN107631060A (en) | 2016-07-18 | 2016-07-18 | A kind of swing check valve for being easy to observation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107631060A true CN107631060A (en) | 2018-01-26 |
Family
ID=61112807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610564144.9A Pending CN107631060A (en) | 2016-07-18 | 2016-07-18 | A kind of swing check valve for being easy to observation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107631060A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11378198B2 (en) | 2020-11-17 | 2022-07-05 | Saudi Arabian Oil Company | Valve bonnet accessory |
-
2016
- 2016-07-18 CN CN201610564144.9A patent/CN107631060A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11378198B2 (en) | 2020-11-17 | 2022-07-05 | Saudi Arabian Oil Company | Valve bonnet accessory |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180126 |