CN2201532Y - Full liquid-controlled check butterfly bamper - Google Patents
Full liquid-controlled check butterfly bamper Download PDFInfo
- Publication number
- CN2201532Y CN2201532Y CN 94229393 CN94229393U CN2201532Y CN 2201532 Y CN2201532 Y CN 2201532Y CN 94229393 CN94229393 CN 94229393 CN 94229393 U CN94229393 U CN 94229393U CN 2201532 Y CN2201532 Y CN 2201532Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- butterfly
- butterfly plate
- hydraulic
- 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 a butterfly valve with buffering and non-return functions, which discloses a structure that a valve body and a butterfly plate set are in a double eccentric type referring to the problems that the friction torque of the prior check butterfly valve of liquid control is big, the closing property can not satisfy the use of a special working condition, an installation mode is single, the safety system is low, the anti-vibration performance is poor, and a safety system is low. A full travel angle of fast closing and slow closing, a convex block, the speed of which can be adjusted, a travel switch device and a valve, the control portion of which is combined with the valve body in split are provided. The valve has the characteristics of reliable operation, long service life, convenient installation and arrangement, small size and light weight, the utility model can be suitable for various working conditions and can also work without dynamic power supply.
Description
The utility model relate to a kind of be used for having on the liquid medium pipeline by and the valve of check function, particularly relate to the valve of hydraulic control class.
At present, the producer that has is big in order to overcome heavy hammer type hydraulic control butterfly valve volume, complex structure, weight easily falls, the time have accident to take place drawback, and disclose a kind of hydraulic butterfly valve, discovery in actual applications, the valve of this kind scheme, the closing property adjustability is poor, and mounting type is single, a little less than the antivibration ability, keying surface friction drag is big, so this valve is desirable not enough.
The purpose of this utility model is to provide a kind of minimizing sealing pair friction torque, and the closing property total travel is adjustable arbitrarily, crouches, vertically all can install, and vibration resistance is strong, safe and reliable full hydraulic butterfly check valve.
The purpose of this utility model is to reach by following technical measures on the basis of existing technology: promptly by valve body, butterfly plate, hydraulic control, carrying out on the valve base plinth that oil cylinder and electrical control division be grouped into valve body and butterfly plate group is the double eccentric-pieces structure, hydraulic control and electric control system and valve body group are split-type structural, and on the butterfly plate output shaft, be provided with the projection of translation-angle arbitrarily at garden Zhou Fangxiang, valve body is provided with the position limit switch that it can be triggered by projection, in addition for preventing that outer power supply source from having a power failure, or oil hydraulic pump breaks down and is difficult to handle that butterfly plate is opened or soon, when closing slowly, in electric control system, be provided with break contact and the standby DC electrical source that is subjected to its control.
Full hydraulic butterfly check valve described in the utility model has following advantage compared to existing technology:
1, because valve body of this valve and butterfly plate adopt two eccentric structure forms, thereby realizes that sealing is reliable, reduce sealing surface wear and friction torque, and play and help the pass butterfly plate and prolong the valve effect in working life.
2, because hydraulic control in this valve and electric control system and valve body group are split-type structural, thereby overcome abominable working environment such as humidity to electric, the disadvantage of hydraulic element corrosion, thereby prolong its working life, improved the reliability of complete machine, bring great convenience particularly for Installation and Debugging and operation, also therefore realization level or vertical installation.Overcome the disadvantage that current cause vibration.
3, because the position limit switch that on the output shaft of butterfly plate, is provided with projection and closes soon, slowly by the realization butterfly plate of its control, thereby realized the butterfly plate piece, closed slowly, angle and the adjustable purpose of speed total travel reduce water hammer further, have guaranteed the water system safe operation.
Below in conjunction with an embodiment in the accompanying drawing the utility model is further described:
Fig. 1 is full hydraulic butterfly check valve structural principle schematic representation.
As shown in Figure 1, full hydraulic butterfly check valve described in the utility model, by valve body (1), butterfly plate (2), connecting rod (3), carry out oil cylinder (4), accumulator (5), oil hydraulic pump (6), hand pump (7), hydraulic control (8), pipeline (9), position limit switch (10), projection (11), electric control system (12), break contact (13) and DC electrical source (14) and form, and valve body center line A and butterfly plate rotary centerline B do not coincide.
When valve of the present invention, be installed in when moving on the system pipeline, valve is in certain state that opens or closes, at this moment make oil hydraulic pump carry out ftercompction or operator press pump to the accumulator ftercompction by electric control system and hydraulic control to accumulator, when the certain pressure value is arrived in ftercompction, automatically stop solution press pump or stop hand pump, at this moment, full hydraulic control system is returned butterfly valve and is in the operation state for the treatment of, when system pipeline needs full hydraulic butterfly check valve to change working state, operating hydraulically operated control system is chosen hand pump wantonly, oil hydraulic pump or accumulator are power source, realize that its full hydraulic butterfly check valve is opened or soon, slowly close.
Claims (2)
1, a kind of full hydraulic butterfly check valve of forming by valve body (1), butterfly plate (2), hydraulic control (8), execution oil cylinder (4) and electric control system (12), it is characterized in that valve body (1) and butterfly plate (2) group are the double eccentric-pieces structure, hydraulic control (8) is split-type structural with valve body (1) group, the butterfly plate output shaft is provided with the projection of translation-angle (11) arbitrarily at garden Zhou Fangxiang, and valve body (1) is provided with by projection (11) and makes its position limit switch that can trigger (10).
2, full hydraulic butterfly check valve according to claim 1 is characterized in that said electric control system (12) is provided with normally-closed contact (13) and is subjected to the standby DC electrical source (14) of its control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94229393 CN2201532Y (en) | 1994-08-19 | 1994-08-19 | Full liquid-controlled check butterfly bamper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94229393 CN2201532Y (en) | 1994-08-19 | 1994-08-19 | Full liquid-controlled check butterfly bamper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2201532Y true CN2201532Y (en) | 1995-06-21 |
Family
ID=33841732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94229393 Expired - Fee Related CN2201532Y (en) | 1994-08-19 | 1994-08-19 | Full liquid-controlled check butterfly bamper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2201532Y (en) |
-
1994
- 1994-08-19 CN CN 94229393 patent/CN2201532Y/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 | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: TIELING VALVE FACTORY, LIAONING PROV. TO: TIELING VALVE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Tieling Valve Co., Ltd. Patentee before: Tieling Valve Factory, Liaoning Prov. |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |