CN202659907U - Sealing structure of valve rod of stop valve - Google Patents
Sealing structure of valve rod of stop valve Download PDFInfo
- Publication number
- CN202659907U CN202659907U CN 201220232670 CN201220232670U CN202659907U CN 202659907 U CN202659907 U CN 202659907U CN 201220232670 CN201220232670 CN 201220232670 CN 201220232670 U CN201220232670 U CN 201220232670U CN 202659907 U CN202659907 U CN 202659907U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- valve body
- flap
- rod
- 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
Links
Images
Landscapes
- Lift Valve (AREA)
Abstract
The utility model discloses a sealing structure of a valve rod of a stop valve. The sealing structure comprises a valve body. The left end and the right end of the valve body are provided with a water inlet and a water outlet respectively, a cavity is arranged in the valve body, a side wall of the cavity is provided with an overhauling port, a sealing cover is covered on the overhauling port, the bottom of the cavity is provided with a valve clack seat, the valve clack seat separates the water inlet from the water outlet, the upper end of the valve clack seat is provided with a water outflow hole, the upper end of the valve body is connected with a valve cover, the valve cover is in internal thread match with the valve rod, the upper end of the valve cover is provided with a threaded rod sleeve, contact surfaces of the valve rod and the valve cover are provided with sealing threads respectively, and a valve clack is fixedly installed at the lower end of the valve rod and is in sealing connection with the water outflow hole of the valve clack seat. The sealing structure is stable, good in sealing performance and long in service life.
Description
Technical field
The utility model relates to a kind of stop valve valve rod leak-proof structure.
Background technique
The stop valve valve rod leak-proof structure belongs to forced seal formula valve, so when valve closing, must exert pressure to flap, does not leak with forced seal face.When medium enters valve by the flap below, the required resistance that overcomes of steering force is the frictional force and the thrust that is produced by the pressure of medium of valve rod and filler, and the power that the force rate of closing valve is opened valve is large, so it is large that the diameter of valve rod is wanted, otherwise the fault of valve rod bending can occur.In recent years, after occurring from self-packing valve, the MEDIA FLOW of stop valve valve rod leak-proof structure enters valve pocket to just changing by the flap top, and at this moment under the pressure medium effect, the power of closing valve is little, and it is large to open the power of valve, and the diameter of valve rod can correspondingly reduce.
The model utility content
The utility model provides a kind of structural stability, good airproof performance, the stop valve valve rod leak-proof structure of looking working life.
The utility model technical solution problem provides following scheme:
A kind of stop valve valve rod leak-proof structure, comprise valve body, it is characterized in that: the left side of described valve body, right two ends are respectively equipped with water intake, water outlet, the inside of described valve body has chamber, the sidewall of described chamber is provided with access hole, described access hole is stamped sealing cover, the bottom of described chamber has the flap seat, described flap seat separates water intake and water outlet, the upper end of described flap seat is provided with osculum, the upper end of described valve body is connected with valve gap, described valve gap screw-internal thread fit has valve rod, and the upper end of described valve gap is provided with the threaded stem cover, is respectively equipped with sealing thread on the surface of contact of described valve rod and valve gap, the lower end of described valve rod is installed with flap, and described flap and flap seat osculum are tightly connected.
Be installed with seal ring on the sidewall of described flap.
The utility model stop valve valve rod leak-proof structure is offered access hole at the sidewall of the chamber of valve inner, and is long-time when no when valve like this, education mouthful can be opened, and emits the moisture that the valve body inner product is held, and prevents that valve body from getting rusty.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Referring to accompanying drawing, a kind of stop valve valve rod leak-proof structure, comprise valve body 1, the left side of described valve body 1, right two ends are respectively equipped with water intake, water outlet 2,3, the inside of described valve body 1 has chamber 4, the sidewall of described chamber 4 is provided with access hole 5, described access hole 5 is stamped sealing cover 6, the bottom of described chamber 4 has flap seat 7, described flap seat 7 separates water intake and water outlet, and the upper end of described flap seat 7 is provided with osculum 8, and the upper end of described valve body 1 is connected with valve gap 9, described valve gap 9 screw-internal thread fit have valve rod 10, the upper end of described valve gap 9 is provided with threaded stem cover 14, is respectively equipped with sealing thread 13 on the surface of contact of described valve rod 10 and valve gap 9, and the lower end of described valve rod 10 is installed with flap 11, described flap 11 is tightly connected with flap seat 7 osculums 8, is installed with seal ring 12 on the sidewall of described flap 11.
Claims (2)
1. stop valve valve rod leak-proof structure, comprise valve body, it is characterized in that: the left side of described valve body, right two ends are respectively equipped with water intake, water outlet, the inside of described valve body has chamber, the sidewall of described chamber is provided with access hole, described access hole is stamped sealing cover, the bottom of described chamber has the flap seat, described flap seat separates water intake and water outlet, the upper end of described flap seat is provided with osculum, the upper end of described valve body is connected with valve gap, described valve gap screw-internal thread fit has valve rod, and the upper end of described valve gap is provided with the threaded stem cover, is respectively equipped with sealing thread on the lower end sidewall of described valve rod and the surface of contact of valve gap, the lower end of described valve rod is installed with flap, and described flap and flap seat osculum are tightly connected.
2. described stop valve valve rod leak-proof structure according to claim 1 is characterized in that: be installed with seal ring on the sidewall of described flap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220232670 CN202659907U (en) | 2012-05-22 | 2012-05-22 | Sealing structure of valve rod of stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220232670 CN202659907U (en) | 2012-05-22 | 2012-05-22 | Sealing structure of valve rod of stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202659907U true CN202659907U (en) | 2013-01-09 |
Family
ID=47454816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220232670 Expired - Fee Related CN202659907U (en) | 2012-05-22 | 2012-05-22 | Sealing structure of valve rod of stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202659907U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390019A (en) * | 2014-11-27 | 2015-03-04 | 苏州福润机械有限公司 | Stop valve |
-
2012
- 2012-05-22 CN CN 201220232670 patent/CN202659907U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390019A (en) * | 2014-11-27 | 2015-03-04 | 苏州福润机械有限公司 | Stop valve |
| CN104390019B (en) * | 2014-11-27 | 2016-08-17 | 苏州福润机械有限公司 | A kind of stop valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201751587U (en) | Sealing device for centrifugal pump impeller wear ring | |
| CN202674331U (en) | Pressurizing stop valve | |
| CN202659907U (en) | Sealing structure of valve rod of stop valve | |
| CN201954016U (en) | Dual sealing structure for plunger valve | |
| CN202659906U (en) | Thread sealing stop valve | |
| CN203797061U (en) | Swing low temperature check valve | |
| CN202629100U (en) | High-pressure block valve | |
| CN202746606U (en) | Stop valve | |
| CN201884700U (en) | High-performance pressure balance type bushing plug valve | |
| CN203395193U (en) | Pneumatic stop valve | |
| CN204041421U (en) | Plunger pump packing_seal pressure compensator | |
| CN202302274U (en) | Sealing mechanism of valve rod and valve body | |
| CN201764040U (en) | Stop check valve | |
| CN201206543Y (en) | Hydraulic brake pump body | |
| CN202746623U (en) | Valve | |
| CN203098938U (en) | Novel fluorine lined diaphragm valve | |
| CN203718054U (en) | Ammonia check valve | |
| CN206190919U (en) | High performance angie type stop valve | |
| CN203404400U (en) | Stop valve | |
| CN203892643U (en) | External pilot relief valve structure | |
| CN104747743A (en) | Low and medium-pressure pneumatic balanced stop valve | |
| CN203627046U (en) | Gasoline engine oil tank cap | |
| CN204175985U (en) | Be provided with the butterfly valve of hydraulic sealing structure | |
| CN204083451U (en) | For the switch valve of soda drinking machine | |
| CN202327256U (en) | Constant-flow non-return valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20140522 |