CN2895929Y - Slow-closing device of butterfly valve - Google Patents
Slow-closing device of butterfly valve Download PDFInfo
- Publication number
- CN2895929Y CN2895929Y CN 200620031625 CN200620031625U CN2895929Y CN 2895929 Y CN2895929 Y CN 2895929Y CN 200620031625 CN200620031625 CN 200620031625 CN 200620031625 U CN200620031625 U CN 200620031625U CN 2895929 Y CN2895929 Y CN 2895929Y
- Authority
- CN
- China
- Prior art keywords
- valve
- connecting rod
- base plate
- utility
- model
- 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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- Fluid-Driven Valves (AREA)
- Mechanically-Actuated Valves (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model discloses a slow-closing device of butterfly valve which comprises a mounting base plate a crank connecting rod mechanism which is mounted on the mounting base plate by a bearing, the crank connecting rod mechanism is hinged with a piston rod of a driving cylinder by a driving shaft, a drop hammer is provided at the end of the rod of the crank connecting rod mechanism and a curved scale plate and a limit switch are mounted on the outside surface of the mounting base plate. The utility model has the advantages that the motion of the butterfly valve driven by the drop hammer which is driven by the hydraulic cylinder can easily control the speed of the motion of the valve board by steps, the utilization of the potential energy of the drop hammer in closing the valve enables to close the valve when the power or the hydraulic system is down, so as prevent the pump from the damage caused by a large quantity of water backflow. The utility model can also be remote controlled by linking the cylinder with a electric control device.
Description
Technical field
The utility model relates to butterfly valve, especially relates to the slow closing device of butterfly valve.
Background technique
Present hydraulic butterfly check valve, the unlatching of its valve, closed how the realization by the Driven by Hydraulic Cylinder operating device.Existing deficiency mainly shows as behind the valve opening because of having a power failure or the malfunctioning valve that causes of hydraulic system can't be closed; Moreover the speed that valve opens and closes is difficult to control stage by stage, and it is higher to consume energy.
The model utility content
The utility model purpose is to provide a kind of slow closing device of butterfly valve.
For achieving the above object, the utility model can be taked following technical proposals:
The slow closing device of butterfly valve described in the utility model, it comprises the installation base plate, is arranged on the connecting rod of installing on the base plate by bearing, described connecting rod is hinged by the piston rod of live axle and power cylinder; Interlinking lever end at connecting rod is provided with weight; The outer plate surface that base plate is installed is provided with arc-shaped scale and limit switch.
Advantage of the present utility model is to drive by the hydraulic jack driving weight keying of butterfly valve valve, can realize easily that the valve plate speed that opens and closes controls stage by stage; Owing to is the potential energy that utilizes weight during valve closing,, avoid the flow backwards generation of damage water pump accidents of a large amount of water bodys therefore when having a power failure or hydraulic system also can be with valve closing when malfunctioning.This device also can be realized remote auto control with oil cylinder and electric control equipment interlock.
Description of drawings
Fig. 1 is a main TV structure schematic representation of the present utility model.
Fig. 2 is that the A-A of Fig. 1 is to cutaway view Amplified image.
Embodiment
As shown in the figure, the slow closing device of butterfly valve described in the utility model comprises base plate 1 is installed, and is arranged on crank 2 connecting rods 3 mechanisms of installing on the base plate 1 by bearing, and described crank 2 connecting rods 3 mechanisms are hinged by the piston rod 5 of live axle 4 with power cylinder; Connecting rod 3 ends in crank 2 connecting rods 3 mechanisms are provided with weight 6; The outer plate surface that base plate 1 is installed is provided with arc-shaped scale 7 and limit switch 8.
Claims (1)
1, a kind of slow closing device of butterfly valve, it is characterized in that: it comprises installs base plate (1), be arranged on crank (2) connecting rod (3) mechanism of installing on the base plate (1) by bearing, described crank (2) connecting rod (3) mechanism is hinged by the piston rod (5) of live axle (4) with power cylinder; Connecting rod (3) end in crank (2) connecting rod (3) mechanism is provided with weight (6); The outer plate surface that base plate (1) is installed is provided with arc-shaped scale (7) and limit switch (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620031625 CN2895929Y (en) | 2006-04-19 | 2006-04-19 | Slow-closing device of butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620031625 CN2895929Y (en) | 2006-04-19 | 2006-04-19 | Slow-closing device of butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2895929Y true CN2895929Y (en) | 2007-05-02 |
Family
ID=38065505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620031625 Expired - Fee Related CN2895929Y (en) | 2006-04-19 | 2006-04-19 | Slow-closing device of butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2895929Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182672A (en) * | 2011-05-17 | 2011-09-14 | 肖凤桂 | Adjustable automatic intercept valve |
| CN108644171A (en) * | 2018-07-09 | 2018-10-12 | 江南阀门有限公司 | Crank-linkage type linkage mechanism |
| CN108825861A (en) * | 2018-09-04 | 2018-11-16 | 瑞安市阀门厂 | A kind of multifunction valve door drive of part revolution |
-
2006
- 2006-04-19 CN CN 200620031625 patent/CN2895929Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182672A (en) * | 2011-05-17 | 2011-09-14 | 肖凤桂 | Adjustable automatic intercept valve |
| CN108644171A (en) * | 2018-07-09 | 2018-10-12 | 江南阀门有限公司 | Crank-linkage type linkage mechanism |
| CN108825861A (en) * | 2018-09-04 | 2018-11-16 | 瑞安市阀门厂 | A kind of multifunction valve door drive of part revolution |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |