CN202338677U - Pressure instrument valve structure with convenient checking - Google Patents
Pressure instrument valve structure with convenient checking Download PDFInfo
- Publication number
- CN202338677U CN202338677U CN2011204957610U CN201120495761U CN202338677U CN 202338677 U CN202338677 U CN 202338677U CN 2011204957610 U CN2011204957610 U CN 2011204957610U CN 201120495761 U CN201120495761 U CN 201120495761U CN 202338677 U CN202338677 U CN 202338677U
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- CN
- China
- Prior art keywords
- valve
- pipe close
- instrument
- hole
- pressure instrument
- 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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Abstract
The utility model relates to a pressure instrument valve structure with convenient checking, comprising a valve body, a valve rod and a handle, wherein the handle is arranged at the top end of the valve rod; a pipe plug hole is arranged in the valve body arranged at one side of an instrument, and is communicated with an inner cavity of the valve body; and a pipe plug is connected in the pipe plug hole by threads in a matching manner. After a valve is adopted in a pipeline, and when the pressure instrument needs to be checked, the purpose can be achieved only by closing the valve, taking down the pipe plug and connecting a checking instrument. Simultaneously, an oil draining bolt arranged on the pipe plug can be used for checking whether the valve is closed tightly and the leaking condition exists in advance, so that the accident that a great amount of liquid is spewed out is avoided.
Description
Technical field
The utility model relates to a kind of pressure instrument valve mechanism of being convenient to verification.
Background technique
In liquid such as petroleum pipeline conveying or gas delivery, pressure instrument often need be installed in the pipeline, for example: pressure gauge, pressure switch, pressure transmitter or the like are used for the ducted pressure medium of detection at any time.And these pressure instruments work online for a long time, may produce error, in order in time to find and correction error, need regularly these instrument to be carried out the cycle verification on request.The common practice is a mounted valve between pressure instrument and pipeline now, an end connecting tube of valve, and the other end connects pressure instrument.Valve open in the time of usual work with valve closing, is pulled down instrument and is carried out verification when needing check meter, and verification is loaded onto instrument after accomplishing again, opens valve and begins proper functioning.This method not only wastes time and energy, and the wearing and tearing of pressure instrument and valve joint are also quickened in frequent dismounting easily; In addition owing to there are not suitable protective measures, valve break down be not closed completely in the dismounting instrument can cause liquid to gush, can have an accident in the time of serious.
Summary of the invention
But the purpose of the utility model provides a kind of on-line testing pressure instrument simple in structure, has the pressure instrument valve mechanism of being convenient to verification of safety prevention measure.
For achieving the above object, the utility model is taked following technological scheme:
The described pressure instrument valve mechanism of being convenient to verification of the utility model; Comprise valve body, valve rod, be arranged on the handle of valve stem tip; It is characterized in that: the valve body that is used to install instrument one side is provided with the pipe close hole; The pipe close hole is communicated with the inner chamber of valve body, and pipe close is connected with pipe close through screw-thread fit in the hole.
The place, axle center of above-mentioned pipe close has drain oil, through screw-thread fit oil discharge screw is installed in the drain oil, and the front end of oil discharge screw is coniform, has on the one of which sidewall to extend to the terminal through hole of oil discharge screw.
One end of above-mentioned pipe close is the outside thread that cooperates with the pipe close hole, and the other end has the instrument connection mouth, and its place, axle center has the through hole that runs through pipe close.
In pipeline, adopt after this valve, in needs verification pressure instrument, as long as throttle down takes off pipe close, check meter gets final product in the connection.Simultaneously, the oil discharge screw that is installed on the pipe close can shift to an earlier date the situation whether check valve is closed tight, whether had leakage, avoids occurring the accident that big quantity of fluid is gushed.
Description of drawings
Fig. 1 is an embodiment's of the utility model a structural representation;
Fig. 2 is the another kind of structural representation of pipe close.
Embodiment
Shown in accompanying drawing, the said pressure instrument valve mechanism of being convenient to verification of the utility model comprises valve body 1, valve rod 2, is arranged on the handle 3 on valve rod 2 tops.This valve body valve handle structure adopts common needle type valve structure, need not to further describe at this.The unique distinction of the utility model is, the valve body 1 that is used to install instrument one side is provided with the pipe close hole, and the pipe close hole is communicated with the inner chamber of valve body, is connected with pipe close 4 through screw-thread fit in the pipe close hole.
Described pipe close 4 can have two kinds of structures, and the first has drain oil at its place, axle center, through screw-thread fit oil discharge screw 5 is installed in the drain oil, and the front end of oil discharge screw 5 is coniform, has the through hole that extends to oil discharge screw 5 ends on the one of which sidewall.
As shown in Figure 2, the another kind of structure of pipe close 4 is to be the outside thread that cooperates with the pipe close hole at the one of which end, and the other end has the instrument connection mouth, and its place, axle center has the through hole that runs through pipe close 4.
Above-mentioned two kinds of pipe closes can be used, and the pipe close that will have oil discharge screw in working at ordinary times is installed in the pipe close hole, in the time of needs verification pressure instrument, and first throttle down; Slowly open and put, the liquid in the valve is drained, confirm that valve has leakage by bolt 5; At this moment, because the through hole in the oil discharge screw 5 is very little, even valve has leakage; The flow of liquid can be very not big yet, can take its corresponding measures, is unlikely to cause the accident.After confirming that valve is not revealed, unload whole pipe close again.Change the pipe close shown in the accompanying drawing 2, measuring instrument in the connection is suppressed detection.Restore to the original state again after detection finishes and get final product.Whole testing process need not dismantled pressure instrument, simple to operate, quick, nothing wearing and tearing.
Certainly, also can above-mentioned secundal viae plug is designed to have the structure of closing bolt in the through hole, be to screw on to close bolt and just can replace above-mentioned first kind of pipe close to use as long as work at ordinary times.
Claims (3)
1. pressure instrument valve mechanism of being convenient to verification; Comprise valve body (1), valve rod (2), be arranged on the handle (3) on valve rod (2) top; It is characterized in that: the valve body (1) that is used to install instrument one side is provided with the pipe close hole; The pipe close hole is communicated with the inner chamber of valve body, is connected with pipe close (4) through screw-thread fit in the pipe close hole.
2. pressure instrument valve mechanism according to claim 1; It is characterized in that: the place, axle center of described pipe close (4) has drain oil; Through screw-thread fit oil discharge screw (5) is installed in the drain oil; The front end of oil discharge screw (5) is coniform, has on the one of which sidewall to extend to the terminal through hole of oil discharge screw (5).
3. pressure instrument valve mechanism according to claim 1 is characterized in that: an end of described pipe close (4) is the outside thread that cooperates with the pipe close hole, and the other end has the instrument connection mouth, and its place, axle center has the through hole that runs through pipe close (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204957610U CN202338677U (en) | 2011-12-02 | 2011-12-02 | Pressure instrument valve structure with convenient checking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204957610U CN202338677U (en) | 2011-12-02 | 2011-12-02 | Pressure instrument valve structure with convenient checking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202338677U true CN202338677U (en) | 2012-07-18 |
Family
ID=46487369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204957610U Expired - Fee Related CN202338677U (en) | 2011-12-02 | 2011-12-02 | Pressure instrument valve structure with convenient checking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202338677U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980718A (en) * | 2012-11-22 | 2013-03-20 | 中航力源液压股份有限公司 | On-line pressure detecting method and device thereof |
-
2011
- 2011-12-02 CN CN2011204957610U patent/CN202338677U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980718A (en) * | 2012-11-22 | 2013-03-20 | 中航力源液压股份有限公司 | On-line pressure detecting method and device thereof |
| CN102980718B (en) * | 2012-11-22 | 2015-04-01 | 中航力源液压股份有限公司 | On-line pressure detecting method and device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120718 Termination date: 20141202 |
|
| EXPY | Termination of patent right or utility model |