CN203309269U - By-pass structure in stop valve - Google Patents
By-pass structure in stop valve Download PDFInfo
- Publication number
- CN203309269U CN203309269U CN2013203365840U CN201320336584U CN203309269U CN 203309269 U CN203309269 U CN 203309269U CN 2013203365840 U CN2013203365840 U CN 2013203365840U CN 201320336584 U CN201320336584 U CN 201320336584U CN 203309269 U CN203309269 U CN 203309269U
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- CN
- China
- Prior art keywords
- cavity
- stop valve
- open
- placing chamber
- device placing
- 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 discloses a by-pass structure in a stop valve, and aims at providing the by-pass structure in the stop valve, which is simple in structure, convenient to process, and low in processing cost. The diameter size of a transition cavity is equal to that of a placing cavity for a starting and stopping piece, and the transition cavity and the placing cavity form one cavity. Two connected cavities in the original by-pass structure in the stop valve are modified to one cavity, the processing performance of the part is improved, the production efficiency is improved, and the production cost is reduced.
Description
Technical field
The utility model relates to a kind of valve, and more particularly, it relates to a kind of stop valve internal bypass structure.
Background technique
Domestic medium caliber, heavy caliber cut-off class valve generally adopt the internal bypass structure, and as shown in Figure 1, current internal bypass structure is comparatively complicated, a plurality of cavitys are arranged, and cavity size is uneven, difficulty of processing is large, length consuming time, thus make manufacturing efficiency low, and processing cost is too high.
The model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of stop valve internal bypass structure simple in structure, easy to process, with low cost that has.
For achieving the above object, the utility model provides following technological scheme: a kind of stop valve internal bypass structure, comprise valve petal body, described valve petal body upper end is provided with installation cavity, described installation cavity lower end is provided with adapter cavity, open-shut device placing chamber, and described installation cavity, adapter cavity, open-shut device placing chamber are connected successively, and described open-shut device placing chamber both sides are provided with secondary relief hole, lower end is provided with main relief hole, and described adapter cavity equates with open-shut device placing chamber diameter.
By adopting technique scheme, this stop valve internal bypass structure makes 2 cavitys of original structure into 1 cavity, has improved the part processibility, has improved manufacturing efficiency, has reduced cost of production.
Described open-shut device placing chamber is provided with seal ring with the position that main relief hole is combined.
By adopting technique scheme, the sealability of this stop valve internal bypass structure strengthens.
The accompanying drawing explanation
Fig. 1 is the structure sectional view of existing stop valve internal bypass structure.
Fig. 2 is the utility model stop valve internal bypass structure embodiment's structure sectional view.
Reference character: 1, valve petal body; 2, installation cavity; 3, adapter cavity; 4, open-shut device placing chamber; 5, main relief hole; 6, secondary relief hole; 7, seal ring.
Embodiment
See figures.1.and.2 the utility model stop valve internal bypass structure embodiment is described further.
A kind of stop valve internal bypass structure, comprise valve petal body 1, described valve petal body 1 upper end is provided with installation cavity 2, described installation cavity 2 lower ends are provided with adapter cavity 3, open-shut device placing chamber 4, described installation cavity 2, adapter cavity 3, open-shut device placing chamber 4 are connected successively, described open-shut device placing chamber 4 both sides are provided with secondary relief hole 6, and lower end is provided with main relief hole 5, and described adapter cavity 3 equates with open-shut device placing chamber 4 diameter.As shown in Figure 1, open-shut device placing chamber 4 internal diameters of original structure are greater than adapter cavity 3 internal diameters, add the man-hour difficulty larger, this stop valve internal bypass structure makes 2 cavitys of original structure into 1 cavity, improve the part processibility, improved manufacturing efficiency, reduced cost of production.
Described open-shut device placing chamber 4 is provided with seal ring 7 with the position of main relief hole 5 combinations.By set seal ring 7, can improve the sealability of this structure.
Claims (2)
1. stop valve internal bypass structure, comprise valve petal body, described valve petal body upper end is provided with installation cavity, described installation cavity lower end is provided with adapter cavity, open-shut device placing chamber, described installation cavity, adapter cavity, open-shut device placing chamber are connected successively, and described open-shut device placing chamber both sides are provided with secondary relief hole, and lower end is provided with main relief hole, it is characterized in that: described adapter cavity equates with open-shut device placing chamber diameter, becomes same cavity.
2. stop valve internal bypass structure according to claim 1, it is characterized in that: described open-shut device placing chamber is provided with seal ring with the position that main relief hole is combined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203365840U CN203309269U (en) | 2013-06-08 | 2013-06-08 | By-pass structure in stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203365840U CN203309269U (en) | 2013-06-08 | 2013-06-08 | By-pass structure in stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203309269U true CN203309269U (en) | 2013-11-27 |
Family
ID=49615481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203365840U Expired - Fee Related CN203309269U (en) | 2013-06-08 | 2013-06-08 | By-pass structure in stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203309269U (en) |
-
2013
- 2013-06-08 CN CN2013203365840U patent/CN203309269U/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: 20131127 Termination date: 20140608 |