CN205298570U - Electric check valve with slowly close vice valve - Google Patents
Electric check valve with slowly close vice valve Download PDFInfo
- Publication number
- CN205298570U CN205298570U CN201521068461.9U CN201521068461U CN205298570U CN 205298570 U CN205298570 U CN 205298570U CN 201521068461 U CN201521068461 U CN 201521068461U CN 205298570 U CN205298570 U CN 205298570U
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- Prior art keywords
- valve
- flap
- vice
- main
- main valve
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- Expired - Fee Related
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Abstract
Electric check valve with slowly close vice valve, it relates to valve technical field, vice valve is installed to one side of main valve valve clack, vice valve contain vice valve valve body, vice valve valve clack, piston rod, piston, vice valve valve gap, cushioned cylinder, through -hole, vice valve valve body in install vice valve valve clack, vice valve valve body upper portion is provided with the cushioned cylinder, is provided with the piston rod in the cushioned cylinder, piston rod one end and hinge joint, the other end is connected with pair valve valve clack, cushioned cylinder upper end be provided with vice valve valve gap, be provided with the through -hole on the vice valve valve gap. Electric check valve with slowly close vice valve, solved that prior art pressure medium is too big to lead to the problem that the valve body damaged.
Description
Technical field
This utility model relates to valve technology field, is specifically related to the electric check valve with slow-closing sub valve of rotary.
Background technology
The opening and closing element of stop valve is the flap of stopper, and sealing is plane or the sea conical surface above, and flap is for linear motion along the centrage of valve seat. The forms of motion of valve rod, (adopted name: dark bar), also there is lifting rotation rod-type to can be used for controlling the flowing of all kinds fluids such as sky gas and water, steam, various Korrosionsmedium, mud, oil product, liquid metal and radiating medium. Therefore, such stop valve valve that dams is highly suitable as cut-out or regulates and throttling use. Due to the valve rod of such valve, to be turned on and off stroke relatively short, and has cutting function very reliably, again due to the stroke direct proportionality of the change of valve seat port Yu flap, is very suitable for the adjustment to flow.
Electric check valve and flanged gate valve are the valves belonging to a type together, it is made up of electric operator or pneumatic actuator and stop valve two parts, distinguishing the closure member at it is a valve body, and valve body is made around valve body centrage to rotate a kind of valve reaching to open, close. Gate valve is mainly used to make the flow direction cutting off, distribute and changing medium in pipeline. Two-chip type ball valve, three-flat ball valve, is a kind of novel valve being widely adopted in recent years.
Electric check valve, also it is electronic pipe valve, is most popular a kind of valve, is distinguishing with electrical ball valve, why very popular it is, be due in opening and closing process between sealing surface frictional force little, relatively durable, Lift is little, easy to manufacture, easy to maintenance, it is applicable not only to mesolow, and is applicable to high pressure. The Guan Bi principle of electric check valve is, relies on electronic thrust rotary valve thick stick, makes valve clack sealing surface and sealing surface of seat fit tightly, and stops medium circulation. Electric check valve is only permitted medium one-way flow, directional during installation, and the structure length of stop valve is more than gate valve, and fluid resistance is big simultaneously, and during longtime running, sealing reliability is not strong. The closedown of electric check valve main valve is equivalent to the quick closing valve stage, when pressure medium is excessive, can cause that valve body damages.
Utility model content
The purpose of this utility model is in that the defect for prior art and deficiency, it is provided that a kind of simple in construction, the electric check valve with slow-closing sub valve of rotary reasonable in design, easy to use.
For achieving the above object, the technical solution adopted in the utility model is: it comprises main valve, vavle shelf, electric performance device, secondary valve; Described main valve is connected with vavle shelf, and the upper end of vavle shelf is provided with electric performance device; Described main valve comprises valve body of main valve, main valve flap, rocking bar, bearing pin, main valve valve gap; Being provided with main valve flap in described valve body of main valve, main valve flap is connected with rocking bar, and rocking bar is provided with bearing pin, and valve body of main valve upper end is fixed with main valve valve gap; The side of described main valve flap is provided with secondary valve; Described secondary valve comprises valve body of auxiliary valve, secondary valve flap, piston rod, piston, secondary valve valve gap, cushion dashpot, through hole; Being provided with secondary valve flap in described valve body of auxiliary valve, valve body of auxiliary valve top is provided with cushion dashpot, is provided with piston rod in cushion dashpot, and piston rod one end is connected with piston, and the other end is connected with secondary valve flap; Described cushion dashpot upper end is provided with secondary valve valve gap, and secondary valve valve gap is provided with through hole.
As preferably, being provided with sealing ring between described piston and cushion dashpot.
As preferably, described secondary valve and main valve flap are threaded connection.
As preferably, the quantity of described through hole is 1, and is positioned at the center of secondary valve valve gap.
Operation principle of the present utility model is: during medium proper flow valve opening, pair valve is opened by pressure medium, and medium flows into the port of export of main valve by the through hole of secondary valve, makes main intake valve end release, and main valve flap is opened, and the front and back pressure of main valve tends to balance; During medium counter flow, the quick closedown under counter-flow media effect of main valve flap, adopt O-shaped rubber ring to seal between piston and cushion dashpot, be flat seal between piston lower portion and secondary valve flap; When secondary valve flap is closed with main valve flap and closed, because of the effect of through hole, medium gradually flows into cushion dashpot upper cavity by through hole, and a part of medium is flow backwards by the gap between secondary valve flap and piston rod, therefore secondary valve piston is slowly closing.
After adopting said structure, what this utility model produced has the beneficial effect that the electric check valve with slow-closing sub valve of rotary described in the utility model, solving the excessive problem causing valve body to damage of prior art media pressure, this utility model has simple in construction, arranges the advantages such as reasonable, cost of manufacture is low.
Accompanying drawing explanation
Fig. 1 is this utility model structure chart;
Fig. 2 is main valve structure figure of the present utility model;
Fig. 3 is secondary valve arrangement figure of the present utility model.
Description of reference numerals:
1, main valve; 2, vavle shelf; 3, electric performance device; 4, secondary valve; 5, valve body of main valve; 6, main valve flap; 7, rocking bar; 8, bearing pin; 9, main valve valve gap; 10, valve body of auxiliary valve; 11, secondary valve flap; 12, piston rod; 13, piston; 14, secondary valve valve gap; 15, cushion dashpot; 16, sealing ring; 17, through hole.
Detailed description of the invention
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Referring to such as shown in Fig. 1 Fig. 3, this detailed description of the invention adopts the following technical scheme that it comprises main valve 1, vavle shelf 2, electric performance device 3, secondary valve 4;Described main valve 1 is connected with vavle shelf 2, and the upper end of vavle shelf 2 is provided with electric performance device 3; Described main valve 1 comprises valve body of main valve 5, main valve flap 6, rocking bar 7, bearing pin 8, main valve valve gap 9; Being provided with main valve flap 6 in described valve body of main valve 5, main valve flap 6 is connected with rocking bar 7, and rocking bar 7 is provided with bearing pin 8, and valve body of main valve 5 upper end is fixed with main valve valve gap 9; The side of described main valve flap 6 is provided with secondary valve 4; Described secondary valve 4 comprises valve body of auxiliary valve 10, secondary valve flap 11, piston rod 12, piston 13, secondary valve valve gap 14, cushion dashpot 15, through hole 17; Being provided with secondary valve flap 11 in described valve body of auxiliary valve 10, valve body of auxiliary valve 10 top is provided with cushion dashpot 15, is provided with piston rod 12 in cushion dashpot 15, and piston rod 12 one end is connected with piston 13, and the other end is connected with secondary valve flap 11; Described cushion dashpot 15 upper end is provided with secondary valve valve gap 14, and secondary valve valve gap 14 is provided with through hole 17.
As preferably, being provided with sealing ring 16 between described piston 13 and cushion dashpot 15.
As preferably, described secondary valve 4 is threaded connection with main valve flap 6.
As preferably, the quantity of described through hole 17 is 1, and is positioned at the center of secondary valve valve gap 14.
The operation principle of this detailed description of the invention is: during medium proper flow valve opening, pair valve 4 is opened by pressure medium, and medium flows into the port of export of main valve 1 by the through hole 17 of secondary valve 4, makes main valve 1 inlet end release, main valve flap 6 is opened, and the front and back pressure of main valve 1 tends to balance; During medium counter flow, main valve flap 6 quick closedown under counter-flow media effect, adopt O-shaped rubber ring to seal between piston 13 and cushion dashpot 15, be flat seal between piston 13 bottom and secondary valve flap 11; When secondary valve flap 11 close with main valve flap 6 and when closing, effect because of through hole 17, medium gradually flows into cushion dashpot 15 upper cavity by through hole 17, and a part of medium is flow backwards by the gap between secondary valve flap 11 and piston rod 12, therefore secondary valve piston 13 is slowly closing.
After adopting said structure, the electric check valve with slow-closing sub valve of rotary having the beneficial effect that described in this detailed description of the invention that this detailed description of the invention produces, solving the excessive problem causing valve body to damage of prior art media pressure, this detailed description of the invention has simple in construction, arranges the advantages such as reasonable, cost of manufacture is low.
Of the present utility model ultimate principle and principal character and of the present utility model advantage have more than been shown and described. Skilled person will appreciate that of the industry; this utility model is not restricted to the described embodiments; described in above-described embodiment and description is that principle of the present utility model is described; under the premise without departing from this utility model spirit and scope; this utility model also has various changes and modifications, and these changes and improvements both fall within the scope of claimed this utility model. This utility model claims scope and is defined by appending claims and equivalent thereof.
Claims (4)
1. having the electric check valve of slow-closing sub valve of rotary, it comprises main valve, vavle shelf, electric performance device; Described main valve is connected with vavle shelf, and the upper end of vavle shelf is provided with electric performance device; Described main valve comprises valve body of main valve, main valve flap, rocking bar, bearing pin, main valve valve gap; Being provided with main valve flap in described valve body of main valve, main valve flap is connected with rocking bar, and rocking bar is provided with bearing pin, and valve body of main valve upper end is fixed with main valve valve gap; It is characterized in that it also comprises secondary valve;The side of described main valve flap is provided with secondary valve; Described secondary valve comprises valve body of auxiliary valve, secondary valve flap, piston rod, piston, secondary valve valve gap, cushion dashpot, through hole; Being provided with secondary valve flap in described valve body of auxiliary valve, valve body of auxiliary valve top is provided with cushion dashpot, is provided with piston rod in cushion dashpot, and piston rod one end is connected with piston, and the other end is connected with secondary valve flap; Described cushion dashpot upper end is provided with secondary valve valve gap, and secondary valve valve gap is provided with through hole.
2. the electric check valve with slow-closing sub valve of rotary according to claim 1, it is characterised in that: it is provided with sealing ring between described piston and cushion dashpot.
3. the electric check valve with slow-closing sub valve of rotary according to claim 1, it is characterised in that: described secondary valve and main valve flap are threaded connection.
4. the electric check valve with slow-closing sub valve of rotary according to claim 1, it is characterised in that: the quantity of described through hole is 1, and is positioned at the center of secondary valve valve gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521068461.9U CN205298570U (en) | 2015-12-18 | 2015-12-18 | Electric check valve with slowly close vice valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521068461.9U CN205298570U (en) | 2015-12-18 | 2015-12-18 | Electric check valve with slowly close vice valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205298570U true CN205298570U (en) | 2016-06-08 |
Family
ID=56470851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521068461.9U Expired - Fee Related CN205298570U (en) | 2015-12-18 | 2015-12-18 | Electric check valve with slowly close vice valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205298570U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895181A (en) * | 2015-12-18 | 2017-06-27 | 纽威阀门有限公司 | The non-damageable electric check valve of valve body |
-
2015
- 2015-12-18 CN CN201521068461.9U patent/CN205298570U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895181A (en) * | 2015-12-18 | 2017-06-27 | 纽威阀门有限公司 | The non-damageable electric check valve of valve body |
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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: 20160608 Termination date: 20171218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |