CN207701911U - Sealing device after a kind of valve - Google Patents
Sealing device after a kind of valve Download PDFInfo
- Publication number
- CN207701911U CN207701911U CN201721696651.4U CN201721696651U CN207701911U CN 207701911 U CN207701911 U CN 207701911U CN 201721696651 U CN201721696651 U CN 201721696651U CN 207701911 U CN207701911 U CN 207701911U
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- China
- Prior art keywords
- valve
- valve rod
- valve body
- sealing device
- rod
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- 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.)
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- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The utility model is related to sealing devices after a kind of valve, the valve rod realized material circulation including valve body and in valve body and blocked, it is stretched out outside the valve rod on the outside of the upper end of valve body and is installed with handwheel, the bottom end of the valve rod and valve body lower end constitute the rear sealing device of valve body together, the utility model has the beneficial effects that：Sealing device after a kind of valve of the utility model offer, pass through double-deck sealing rubber ring of the junction setting of tail portion valve body and valve rod in valve, it can effectively improve the sealing effect between valve stem end and valve body, it is convenient and practical, by installing a leak detector that can detect leakage in the lower end of valve body, it can be found in time when valve leaks, prevent material leakage from influencing production, it is more convenient.
Description
Technical field
The utility model is related to valve seal technical field, sealing device after specifically a kind of valve.
Background technology
Valve is control unit in pipeline fluid transport system to be had for changing access section and media flow direction
The functions such as water conservancy diversion, cut-off, throttling, non-return, shunting or overflow release.For the valve of fluid control, from simplest shut-off valve
To various valves used in extremely complex robot control system(RCS), kind and specification are various, and the inside nominal diameter of valve is from atomic small
Gauge valve greatly to latus rectum reach 10m industrial pipeline valve.It can be used for controlling water, steam, oil product, gas, mud, various corrosion
The various types such as property medium, liquid metal and radioactive fluid fluidly flow, and the operating pressure of valve can be from
The super-pressure of 0.0013MPa to 1000MPa, operating temperature can be with c-270 DEG C of ultralow temperature to 1430 DEG C of high temperature.Valve
A variety of kinds of drive can be used in control, such as manually, electrically, surge, pneumatically, turbine, electromagnetic driven, electromagnetism surge, electro-hydraulic dynamic, gas-liquid
Dynamic, spur gear, umbrella tooth wheel drive etc.；It can be under the action of pressure, temperature or other forms transducing signal, by scheduled requirement
Action, or do not depend on transducing signal and be simply turned on and off, valve makes opening and closing element by driving or automechanism
It lifts, slide, swing or rotary motion, to change the size of its flow area to realize its control function.Existing valve
Door is relatively simple, and sealing effect is bad, and the phenomenon that dripping is susceptible to after closing valve, while waste water resource
Also it makes troubles to using.
Utility model content
The technical issues of in order to solve above-mentioned existing valve seal, the utility model provide sealing device after a kind of valve,
By double-deck sealing rubber ring of the junction setting of tail portion valve body and valve rod in valve, can effectively improve valve stem end and
Sealing effect between valve body, it is convenient and practical, by installing a leak detector that can detect leakage in the lower end of valve body,
Valve can be found in time when leaking, and prevent material leakage from influencing production, more convenient.
Technical solution adopted by the utility model to solve its technical problems is：
Sealing device after a kind of valve, including valve body and material circulation and the valve rod blocked, institute are realized in valve body
It states and is installed with handwheel on the outside of the upper end for stretching out valve body outside valve rod, the bottom end of the valve rod and valve body lower end constitute valve together
The rear sealing device of body；
Sealing device includes lower valve bonnet and valve rod after described, and there are two annular grooves for setting on the valve rod in the lower valve bonnet, often
It is socketed with rubber ring, the rubber ring and annular groove in a annular groove and realizes rubber ring and ring by stretching clamp on rubber ring
The fixation of slot, the lower end of the valve rod is limited by bearing to be fixed, and is equipped on the lower valve bonnet and is connected with valve rod edge breather
Logical leak detector.
Further, the valve rod and handwheel are by pin fastener, and the valve rod is smooth rod structure, and the valve rod exists
Conducting is installed at valve inner fluid passage and blocks the valve switch of material circulation.
Further, the annular groove edge of the valve rod lower end is provided with for being tied with the interior protrusion for stretching clamp clamping
Structure.
Further, the lower valve bonnet and valve body are fixed by bolt arrangement, and the junction of lower valve bonnet and valve body is lined with close
Packing.
Further, the lower end of the bearing and valve rod is connected by keyway arrangements, and valve rod can be in bearing
Portion is freely rotated.
Further, filled with the test paper for meeting water discoloration in the leak detector.
The utility model has the beneficial effects that：Sealing device after a kind of valve of the utility model offer, by valve
Double-deck sealing rubber ring of the junction of tail portion valve body and valve rod setting, can effectively improve close between valve stem end and valve body
Effect is sealed, it is convenient and practical, by installing a leak detector that can detect leakage in the lower end of valve body, leaked in valve
When can find in time, prevent material leakage influence production, it is more convenient.
Description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the rear schematic diagram of sealing device of the utility model.
In figure：1, valve body, 2, valve rod, 3, handwheel, 4, rear sealing device, 41, lower valve bonnet, 42, rubber ring, 43, interior stretch card
Head, 44, annular groove, 45, bearing, 46, leak detector.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As shown in Figs. 1-2, Fig. 1 is the structural schematic diagram of the utility model, and Fig. 2 is the rear sealing device knot of the utility model
Structure schematic diagram.
As one preferred embodiment of the utility model, sealing device after a kind of valve described in the utility model, packet
The valve rod 2 for including valve body 1 and realizing material circulation in valve body 1 and blocking, the valve rod 2 stretch out the upper end of valve body 1 outside
Outside is installed with handwheel 3, and the bottom end and 1 lower end of valve body of the valve rod 2 constitute the rear sealing device 4 of valve body together；
Sealing device 4 includes lower valve bonnet 41 and valve rod 2 after described, on the valve rod 2 in the lower valve bonnet 41 there are two settings
Annular groove 44 is socketed with rubber ring 42, the rubber ring 42 and annular groove 44 in each annular groove 44 by rubber ring 42
The fixation that clamp 43 realizes rubber ring 42 and annular groove 44 is stretched, the lower end of the valve rod 2 is limited by bearing 45 to be fixed, under described
The leak detector 46 being connected to 1 edge breather of valve rod is installed on valve bonnet 41.
Further, by pin fastener, the valve rod 2 is smooth rod structure, the valve for the valve rod 2 and handwheel 3
Bar 2 is equipped with conducting at 1 internal fluid passages of valve body and blocks the valve switch of material circulation.
Further, 44 edge of annular groove of 2 lower end of the valve rod is provided with for stretching the convex of 43 clamping of clamp with interior
Play structure.
Further, the lower valve bonnet 41 and valve body 1 are fixed by bolt arrangement, the junction of lower valve bonnet 41 and valve body 1
It is lined with gasket.
Further, the lower end of the bearing 45 and valve rod 2 is connected by keyway arrangements, and valve rod 2 can be in axis
It holds and is freely rotated inside 45.
Further, filled with the test paper for meeting water discoloration in the leak detector 46.
Embodiment two
In use, the open or close that fluid passage in valve body 1 is realized in the rotation of valve rod 2 is controlled by handwheel 3, valve rod 2
Extended into lower end in lower valve bonnet 41, the junction of valve rod 2 and lower valve bonnet 41 be fixedly installed two circles for sealing rubber
42 are enclosed, the leak detector 46 for detecting leakage, valve rod 2 and lower valve bonnet 41 hair are installed on the lower valve over body case of 42 lower section of rubber ring
When raw leakage, it can carry out judging whether leakage by test paper discoloration in leak detector 46 in time, it is more convenient.
Basic principles, main features, and advantages of the present invention has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (6)
1. sealing device after a kind of valve, including valve body and material circulation is realized in valve body and the valve rod that blocks, it is described
It is stretched out outside valve rod on the outside of the upper end of valve body and is installed with handwheel, which is characterized in that the bottom end of the valve rod and valve body lower end
The rear sealing device of valve body is constituted together；
Sealing device includes lower valve bonnet and valve rod after described, and there are two annular groove, Mei Gesuo for setting on the valve rod in the lower valve bonnet
It states and is socketed with rubber ring in annular groove, the rubber ring and annular groove realize rubber ring and annular groove by stretching clamp on rubber ring
Fixed, the lower end of the valve rod is limited by bearing to be fixed, and is equipped on the lower valve bonnet and is connected to valve rod edge breather
Leak detector.
2. sealing device after a kind of valve according to claim 1, it is characterised in that：The valve rod and handwheel pass through pin
Fastening, the valve rod are smooth rod structure, and the valve rod is equipped with conducting at valve inner fluid passage and blocks material
The valve switch of circulation.
3. sealing device after a kind of valve according to claim 1, it is characterised in that：The annular groove side of the valve rod lower end
Be provided at edge for the interior bulge-structure for stretching clamp clamping.
4. sealing device after a kind of valve according to claim 1, it is characterised in that：The lower valve bonnet and valve body pass through spiral shell
Stud structure is fixed, and the junction of lower valve bonnet and valve body is lined with gasket.
5. sealing device after a kind of valve according to claim 1, it is characterised in that：The lower end of the bearing and valve rod
It is connected by keyway arrangements, valve rod can be freely rotated in Bearing inner.
6. sealing device after a kind of valve according to claim 1, it is characterised in that：Filled with chance water in the leak detector
The test paper of discoloration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721696651.4U CN207701911U (en) | 2017-12-07 | 2017-12-07 | Sealing device after a kind of valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721696651.4U CN207701911U (en) | 2017-12-07 | 2017-12-07 | Sealing device after a kind of valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207701911U true CN207701911U (en) | 2018-08-07 |
Family
ID=63025415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721696651.4U Active CN207701911U (en) | 2017-12-07 | 2017-12-07 | Sealing device after a kind of valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207701911U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110346094A (en) * | 2019-07-17 | 2019-10-18 | 梁敏 | A kind of triple valve of air-leakage test |
-
2017
- 2017-12-07 CN CN201721696651.4U patent/CN207701911U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110346094A (en) * | 2019-07-17 | 2019-10-18 | 梁敏 | A kind of triple valve of air-leakage test |
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| GR01 | Patent grant |