CN202901508U - Seal structure of valve rod and valve cover - Google Patents
Seal structure of valve rod and valve cover Download PDFInfo
- Publication number
- CN202901508U CN202901508U CN 201220516485 CN201220516485U CN202901508U CN 202901508 U CN202901508 U CN 202901508U CN 201220516485 CN201220516485 CN 201220516485 CN 201220516485 U CN201220516485 U CN 201220516485U CN 202901508 U CN202901508 U CN 202901508U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- seal ring
- cavity
- valve gap
- 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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- Lift Valve (AREA)
Abstract
The utility model relates to a seal structure of a valve rod and a valve cover. The seal structure of the valve rod and the valve cover comprises the valve cover, wherein the valve c over is provided with a movable valve rod, a cavity is arranged in the valve rod, a first seal ring is arranged between the valve cover arranged below the cavity and the valve rod, and a second seal ring is arranged between the valve cover arranged above the cavity and the valve rod. The valve cover is divided into an upper layer and a lower layer by the cavity which is arranged in the valve cover, and a second seal ring and the first seal ring are arranged between the upper layer, the lower layer and the valve rod. Even though the first seal ring leaks, leaked things also can flow into the cavity, the first seal ring can be conveniently replaced by workers in time, and liquid also can not directly flow out the valve cover.
Description
Technical field
The utility model relates to the sealing configuration of a kind of valve rod and valve gap.
Background technique
Sealability was poor between valve gap on the stop valve and the valve rod in the past, and valve gap only has one deck, and the position that seal ring can be set is limited, and sealability is relatively poor.
The model utility content
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, the sealing configuration of a kind of valve rod and valve gap is provided, solve the in the past defective of poor sealing performance between the valve rod and valve gap.
The technological scheme that its technical problem that solves the utility model adopts is: the sealing configuration of a kind of valve rod and valve gap, comprise valve gap, be provided with movably valve rod on the described valve gap, has cavity in the described valve rod, described below cavity valve gap and valve rod between be provided with the first seal ring, described above cavity valve gap and valve rod between be provided with the second seal ring.
The beneficial effects of the utility model are: valve gap inside is arranged a upper cavity, valve gap is divided into two-layer up and down, between the respectively two-layer and valve rod the second seal ring and the first seal ring are set up and down, even occur leaking at the first seal ring place, the thing that leaks also can flow in the cavity, be convenient to the workman and in time change, liquid can directly not flow out valve gap yet.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is the linkage structure schematic representation of valve gap and valve gap;
Wherein: 1, valve gap, 2, valve rod, the 3, first seal ring, the 4, second seal ring.
Embodiment
By reference to the accompanying drawings the utility model is further described now.The schematic representation that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, so it only shows the formation relevant with the utility model.
A kind of valve rod as shown in Figure 1 and the sealing configuration of valve gap, comprise valve gap 1, be provided with movably valve rod 2 on the valve gap 1, has cavity in the valve rod 2, between the valve gap 1 below the cavity and valve rod 2, be provided with the first seal ring 3, between the valve gap 1 above the cavity and valve rod 2, be provided with the second seal ring 4.
Take above-mentioned foundation desirable embodiment of the present utility model as enlightenment, by above-mentioned description, the relevant staff can in the scope that does not depart from this model utility technological thought, carry out various change and modification fully.The technical scope of this model utility is not limited to the content on the specification, must determine its technical scope according to the claim scope.
Claims (1)
1. the sealing configuration of a valve rod and valve gap, it is characterized in that: comprise valve gap (1), be provided with movably valve rod (2) on the described valve gap (1), described valve rod has cavity in (2), be provided with the first seal ring (3) between the described valve gap (1) that is positioned at cavity below and the valve rod (2), described being positioned between valve gap (1) above the cavity and the valve rod (2) is provided with the second seal ring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220516485 CN202901508U (en) | 2012-10-10 | 2012-10-10 | Seal structure of valve rod and valve cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220516485 CN202901508U (en) | 2012-10-10 | 2012-10-10 | Seal structure of valve rod and valve cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202901508U true CN202901508U (en) | 2013-04-24 |
Family
ID=48122179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220516485 Expired - Fee Related CN202901508U (en) | 2012-10-10 | 2012-10-10 | Seal structure of valve rod and valve cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202901508U (en) |
-
2012
- 2012-10-10 CN CN 201220516485 patent/CN202901508U/en not_active Expired - Fee Related
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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: 20130424 Termination date: 20131010 |