CN202580147U - Slow-closure type hydraulic check valve - Google Patents
Slow-closure type hydraulic check valve Download PDFInfo
- Publication number
- CN202580147U CN202580147U CN 201220147685 CN201220147685U CN202580147U CN 202580147 U CN202580147 U CN 202580147U CN 201220147685 CN201220147685 CN 201220147685 CN 201220147685 U CN201220147685 U CN 201220147685U CN 202580147 U CN202580147 U CN 202580147U
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- CN
- China
- Prior art keywords
- oil cylinder
- valve
- slow
- type hydraulic
- check valve
- 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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- Details Of Valves (AREA)
Abstract
The utility model relates to the technical field of check valves, in particular to a slow-closure type hydraulic check valve. The slow-closure type hydraulic check valve has better high-temperature sealing performance and effectively protects pipeline components, so that the service life of the whole slow-closure type hydraulic check valve is guaranteed, the reliability is high and an oil cylinder is less influenced by the medium temperature. The slow-closure type hydraulic check valve comprises a valve body, a valve rod, an oil cylinder, a heavy hammer and a valve cover, wherein the heavy hammer and the valve rod are arranged together through a heavy hammer moment arm rod. The slow-closure type hydraulic check valve also comprises an oil cylinder base, wherein the oil cylinder base is arranged on the side wall of the valve body; the oil cylinder is arranged on the oil cylinder base; and the output end of the oil cylinder and the heavy hammer moment arm rod are arranged together.
Description
Technical field
The utility model relates to the safety check technical field, particularly relates to a kind of Slow Close formula hydraulic back-pressure valve.
Background technique
As everyone knows, open-shut device leans on media flow and strength to open voluntarily or close, with the valve that prevents the medium refluence on safety check; Safety check belongs to the self-acting valve class, is mainly used on the pipeline of medium one-way flow, only allows medium to flow to a direction, to try to avert accidents; Existing Slow Close formula hydraulic back-pressure valve comprises valve body, oil cylinder, flap, weight, weight arm bar, valve gap and valve rod, be cavity structure in the valve body, and oil cylinder, flap and valve rod is installed in the valve body; Valve gap and valve body are installed together; This Slow Close formula hydraulic back-pressure valve is found in using, its elevated-temperature seal poor-performing, and superincumbent line elements is installed is easy to be destroyed; Influence whole safety check working life; And because its oil cylinder is installed in valve inner, and reliability is poor, it is bigger that oil cylinder is influenced by medium temperature.
The model utility content
For solving the problems of the technologies described above, the utility model provides a kind of elevated-temperature seal better performances, has effectively protected line elements, thereby has ensured whole service life, and reliability is stronger, and oil cylinder receives medium temperature to influence less Slow Close formula hydraulic back-pressure valve.
The Slow Close formula hydraulic back-pressure valve of the utility model; Comprise valve body, valve rod, oil cylinder, weight and valve gap; Said weight is installed together through weight arm bar and valve rod, also comprises oil cylinder seat, and said oil cylinder seat is installed on the sidewall of said valve body; And said oil cylinder is installed on the said oil cylinder seat, and the output terminal of said oil cylinder and weight arm bar are installed together.
The Slow Close formula hydraulic back-pressure valve of the utility model, said valve gap and said valve body are installed together.
Compared with prior art the beneficial effect of the utility model is: be provided with oil cylinder seat again, oil cylinder seat is installed on the sidewall of valve body, and oil cylinder is installed on the oil cylinder seat, and the output terminal of oil cylinder and weight arm bar are installed together; Adopted the external hanging type oil cylinder, oil cylinder receives medium temperature to influence reduction, and reliability is higher; And easy to maintenance, the elevated-temperature seal performance is higher, takes up oil cylinder by connecting transmission between valve rod, weight arm bar, the oil cylinder seat; Owing to there has not been the medium active force that makes progress on the flap, adding from gravity of flap acts on the sagging power and the medium back flow power of weight on the oil cylinder when closing; Slowly close flap, can effectively eliminate the medium water hammer effect when closing.Thereby the protective tube kind of thread elements is not damaged, and then has ensured bulk life time.
Description of drawings
Fig. 1 is that the master of the utility model looks sectional view;
Fig. 2 is the plan view of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the embodiment of the utility model is described in further detail.Following examples are used to explain the utility model, but are not used for limiting the scope of the utility model.
As depicted in figs. 1 and 2; The Slow Close formula hydraulic back-pressure valve of the utility model comprises valve body 1, valve rod 2, oil cylinder 3, weight 4 and valve gap 5, and weight is installed together through weight arm bar 6 and valve rod; Also comprise oil cylinder seat 7; Oil cylinder seat is installed on the sidewall of valve body, and oil cylinder is installed on the oil cylinder seat, and the output terminal of oil cylinder and weight arm bar are installed together; Adopted the external hanging type oil cylinder, oil cylinder receives medium temperature to influence reduction, and reliability is higher; And easy to maintenance, the elevated-temperature seal performance is higher, takes up oil cylinder by connecting transmission between valve rod, weight arm bar, the oil cylinder seat; Owing to there has not been the medium active force that makes progress on the flap, adding from gravity of flap acts on the sagging power and the medium back flow power of weight on the oil cylinder when closing; Slowly close flap, can effectively eliminate the medium water hammer effect when closing.Thereby the protective tube kind of thread elements is not damaged, and then has ensured bulk life time.
The Slow Close formula hydraulic back-pressure valve of the utility model, said valve gap and said valve body are installed together.
The above only is the preferred implementation of the utility model; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model know-why, can also make some improvement and modification, these improvement and modification also should be regarded as the protection domain of the utility model.
Claims (2)
1. Slow Close formula hydraulic back-pressure valve; Comprise valve body, valve rod, oil cylinder, weight and valve gap, said weight is installed together through weight arm bar and valve rod, it is characterized in that; Also comprise oil cylinder seat; Said oil cylinder seat is installed on the sidewall of said valve body, and said oil cylinder is installed on the said oil cylinder seat, and the output terminal of said oil cylinder and weight arm bar are installed together.
2. Slow Close formula hydraulic back-pressure valve as claimed in claim 1 is characterized in that said valve gap and said valve body are installed together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220147685 CN202580147U (en) | 2012-04-10 | 2012-04-10 | Slow-closure type hydraulic check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220147685 CN202580147U (en) | 2012-04-10 | 2012-04-10 | Slow-closure type hydraulic check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202580147U true CN202580147U (en) | 2012-12-05 |
Family
ID=47249559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220147685 Expired - Fee Related CN202580147U (en) | 2012-04-10 | 2012-04-10 | Slow-closure type hydraulic check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202580147U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925395A (en) * | 2014-05-13 | 2014-07-16 | 上海东方威尔阀门有限公司 | Energy-saving resistance-free check valve |
| CN114838168A (en) * | 2022-03-18 | 2022-08-02 | 荆门美中美阀门有限公司 | Butterfly slow-closing check valve |
-
2012
- 2012-04-10 CN CN 201220147685 patent/CN202580147U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925395A (en) * | 2014-05-13 | 2014-07-16 | 上海东方威尔阀门有限公司 | Energy-saving resistance-free check valve |
| CN103925395B (en) * | 2014-05-13 | 2016-04-13 | 上海东方威尔阀门有限公司 | Energy-conservation resistance-free check valve |
| CN114838168A (en) * | 2022-03-18 | 2022-08-02 | 荆门美中美阀门有限公司 | Butterfly slow-closing check valve |
| CN114838168B (en) * | 2022-03-18 | 2024-05-03 | 荆门美中美阀门有限公司 | Butterfly slow-closing check valve |
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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: 20121205 Termination date: 20150410 |
|
| EXPY | Termination of patent right or utility model |