CN202432083U - Liquid-operated safety valve actuator - Google Patents
Liquid-operated safety valve actuator Download PDFInfo
- Publication number
- CN202432083U CN202432083U CN201120527577XU CN201120527577U CN202432083U CN 202432083 U CN202432083 U CN 202432083U CN 201120527577X U CN201120527577X U CN 201120527577XU CN 201120527577 U CN201120527577 U CN 201120527577U CN 202432083 U CN202432083 U CN 202432083U
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- Prior art keywords
- piston
- safety valve
- cylinder
- cylinder body
- spring
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- Expired - Fee Related
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Abstract
The utility model discloses a liquid-operated safety valve actuator, and belongs to the technical field of control of valves. The liquid-operated safety valve actuator comprises a cylinder body, a base and a cylinder cover, the base is arranged at the lower end of the cylinder body, the cylinder cover is arranged at the upper end of the cylinder body, a piston is disposed in the cylinder body, the upper side of the piston, the inner wall of the cylinder body and the cylinder cover form a hydraulic cylinder, a liquid inlet and a safety valve are arranged on the liquid cylinder, and the piston is connected with a valve stem penetrating out of the base and is provided with a return device. The liquid-operated safety valve actuator is simple in structure, reliable in sealing, long in service life, simple in replacement and easy to be maintained, is operated simply and conveniently, and is fast mounted and detached in a field conveniently, abrasion of the piston is avoided, the friction coefficient is reduced, and the liquid-operated safety valve actuator can be used for gate valves in different specifications, and is wide in application range and favorable for popularization and utilization.
Description
Technical field
The utility model relates to the final controlling element of a kind of control technique of safety valve, particularly a kind of safety valve.
Background technique
At present, what gate valve generally adopted is the manually operated type structure, adopts the manually operated type structure to waste time and energy, and can not efficiently apace gate valve be closed, and is unfavorable for producing and utilizes.Therefore on the manually operated type structure with regard to transmission, the pneumatic type of being improved to is arranged and the final controlling element of the formula of surging again, but because the specification of gate valve is different, the moment that needed final controlling element provided is also different; Therefore single final controlling element can not can both be used with the gate valve of plurality of specifications model, simultaneously, because gate valve and final controlling element thereof are in the environment of deep-etching for a long time; Very easily damage, its life-span of Sealing wherein is short, causes the life-span short; Cost is high, is unfavorable for applying, and the control gear of traditional gate valve; Its complex structure, not quick detachable, thus make very inconvenience of maintenance and maintenance.
The model utility content
The goal of the invention of the utility model is: the problem to above-mentioned existence, provide a kind of simple in structure, easy and simple to handle, and sealing is reliable; Life-span is permanent, changes simply, and the safety valve final controlling element that surges that is easy to safeguard is through using this safety valve final controlling element that surges; Can avoid the excessive damage that valve is caused of driving force, and the scene of being convenient to installs fast and remove, avoid piston wear, reduce friction factor; Can on the gate valve of different size, use, applied widely, be beneficial to utilization and extention.
The technological scheme that the utility model adopts is following:
The safety valve final controlling element that surges of the utility model comprises cylinder body, base and cylinder cap, and said base is arranged at the lower end of cylinder body; Said cylinder cap is arranged at the upper end of cylinder body; Be provided with piston in the said cylinder body, form fluid cylinder between said piston top and inboard wall of cylinder block, the cylinder cap, said fluid cylinder is provided with liquid entering hole and safety valve; Be connected with the piston rod that passes cylinder cap on the said piston; The top of said cylinder cap is provided with guard shield, and said piston rod stretches in the guard shield, also is provided with return facilities on the said piston.
Owing to adopted said structure, valve rod is connected with gate valve, thereby can reach the effect that the control gate valve opens and closes through the control valve rod, and cylinder cap is arranged at the upper end of cylinder body; Base is arranged at the lower end of cylinder body, is provided with the piston that is mated in the cylinder body, thereby makes the fluid cylinder part of this final controlling element of space formation between piston top and cylinder body, the cylinder cap, and its this cylinder is provided with liquid entering hole and safety valve; Liquid entering hole can be used for feed flow in fluid cylinder, moves with driven plunger, and safety valve is used to ensure when the hydraulic pressure in the fluid cylinder is too high, liquid is discharged; In the time of perhaps need the liquid in the fluid cylinder being discharged, also can operate through this safety valve, piston is provided with return facilities, when the needs closing gate valve; Move up thereby need backward stroke of the piston to promote valve rod, thereby realize closing of gate valve, when the needs gate valve is opened, can in fluid cylinder, supply water etc.; Make piston move down, move down that gate valve is opened, and this final controlling element is opened through the start-up control gate valve thereby drive valve rod; And its automation is adopted in backhaul, and it is easy and simple to handle, and is simple in structure; Keep in repair easy, long service life, this final controlling element of use with low cost; Through highly pressurised liquid exerted pressure in piston top, interlock valve rod and flashboard are opened gate valve, utilize the spring-return switch gate valve.When the final controlling element pressure release, heavy-duty spring can guarantee that gate valve closes automatically, and its operation is very easy, is fit to apply.
The safety valve final controlling element that surges of the utility model; Said return facilities comprises wedge nut and spring, and said wedge nut is fixed in the bottom of piston, is fixed with the valve rod that passes base on the said wedge nut; Said spring is placed in outside the valve rod, is restricted between piston base and the base.
Owing to adopted said structure, this return facilities comprises the wedge nut, and this nut is fixedly connected with piston; And the valve rod that below nut, has been threaded, this valve rod passes base, and valve rod can move with piston; Cooperating between valve rod and the base can guide piston to move, and outside valve rod, is with spring, and this spring is restricted between wedge nut and the base; Therefore piston can remain the trend that moves upward under the effect of spring force, above the wedge nut, is connected with piston rod, and this piston rod passes cylinder cap; Can guide moving of piston, guarantee that piston is installed on the correct direction to move, avoid taking place skew and cylinder body and piston itself are worn and torn and cause damage; Thereby can guarantee its working life, reduce maintenance cost.When need be through the opening of this final controlling element control gate valve, need be in fluid cylinder feed flow, make piston in cylinder body, overcome spring force and move downward, thereby make piston rod move down with piston, piston rod can the control gate opening of valves; When needs control gate valve is closed, when need the liquid in the fluid cylinder be discharged,, piston returns because receiving the effect of spring force; Piston rod moves up with piston; Thereby the closure of control gate valve, it is through the switching of liquid control gate valve, not only environmental protection but also safe and reliable; Operation simultaneously is very easy, is fit to apply.
The safety valve final controlling element that surges of the utility model, said wedge nut overcoat has the spring wedge, and said spring wedge and piston base are fitted, and said spring is restricted between spring wedge and the base.
Owing to adopted said structure, through bottom the spring wedge is set, and said spring wedge is installed for adapting at piston; Be placed in outside the wedge nut, the two ends up and down of spring cooperate with spring wedge and base respectively, thereby make spring be restricted between spring wedge and the base; The spring wedge can avoid spring directly to contact with piston, thereby reduces the damage of spring to piston, the working life of improving piston; Reduce its maintenance cost, be fit to apply.
The safety valve final controlling element that surges of the utility model, the top of said piston is connected with piston rod, and the top of said cylinder cap is provided with guard shield, and said piston rod passes cylinder cap and stretches in the guard shield.
Owing to adopted said structure; The top of cylinder cap is provided with guard shield; The piston rod that the top of piston connects passes cylinder cap and stretches in the guard shield, makes piston rod can guide piston to move, and avoids piston in the process that moves, to squint; Thereby damage with the cylinder body friction, and then guarantee its working life.
The safety valve final controlling element that surges of the utility model, said wedge nut overcoat has Adjusting bolt Adjusting screw, and said Adjusting bolt Adjusting screw is provided with screw, and said piston rod is connected on the piston through flange.
Owing to adopted said structure, whole return facilities is through the position of regulating and controlling swivel nut on the wedge nut, thus the stroke that limited piston is moved downwards; Thereby limit the distance that whole valve rod moves; Thereby can adjust according to the gate valve of different model, be fit to the gate valve of different model, make it applied widely to realize this final controlling element; Highly versatile is fit to apply.
The safety valve final controlling element that surges of the utility model, the edge of said piston is provided with O type circle and back-up ring.
Owing to adopted said structure; O type circle and back-up ring are set on the edge of piston, can make between piston and the cylinder body through O type circle to seal, guarantee that the sealing of fluid cylinder of its top is good; Pass through back-up ring; Thereby avoid direct contact the between piston and the cylinder body, thereby make that the life-span of piston is permanent, thereby reduce maintenance cost.
In sum, owing to adopted technique scheme, the beneficial effect of the utility model is:
1, the safety valve final controlling element that surges of the utility model is simple in structure, easy and simple to handle, and sealing is reliable, and the life-span is permanent, changes simply, is easy to safeguard;
2, the safety valve final controlling element that surges of the utility model can be avoided the excessive damage that valve is caused of driving force, and the scene of being convenient to installs fast and remove, and avoids piston wear, reduces friction factor;
3, the safety valve final controlling element that surges of the utility model can use on the gate valve of different size, and is applied widely, is beneficial to utilization and extention.
Description of drawings
Fig. 1 is the structural representation of the safety valve final controlling element that surges of the utility model.
Mark among the figure: 1-spring, 2-cylinder body, 3-Adjusting bolt Adjusting screw, 4-wedge nut; Hexagonal awl end Cock screw in the 5-, 6-spring wedge, 7-O type circle, 8-back-up ring; The 9-piston, 10-flange, 11-O type circle, 12,13-Full Thread FT hexagon head bolt; The 14-cylinder cap, 15-seal ring pressure cap, 16-seal ring pressure cap, 17-combined stuffing, 18-dust ring, 19-piston rod, 20-guard shield, 21-safety valve, 22-waterproof adhesive sticker, 23-nameplate, 24-rivet.
Embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed explanation.
For the purpose, technological scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As shown in Figure 1, the safety valve final controlling element that surges of the utility model comprises cylinder body 2, base and cylinder cap 14; Said base is arranged at the lower end of cylinder body 2, and said cylinder cap 14 is arranged at the upper end of cylinder body 2, is provided with piston 9 in the said cylinder body 2; The edge of said piston 9 is provided with O type circle 7 and back-up ring 8, forms fluid cylinder between said piston 9 tops and cylinder body 2 inwalls, the cylinder cap 14, and said fluid cylinder is provided with liquid entering hole and safety valve 21; Be connected with the valve rod that passes base on the said piston 9, the top of said piston 9 is connected with piston rod 9, and the top of said cylinder cap 14 is provided with guard shield 20; Said piston rod 9 passes cylinder cap 14 and stretches in the guard shield 20, also is provided with return facilities on the said piston 9, and this return facilities comprises wedge nut 4 and spring 1; Said wedge nut 4 is fixed in the bottom of piston 9, is with Adjusting bolt Adjusting screw 3 outside the said wedge nut 4, and said Adjusting bolt Adjusting screw 3 is provided with screw; Said piston rod 19 is connected on the piston 9 through flange 10; Said wedge nut 4 is connected with valve rod, and said spring 1 is placed in outside the valve rod, is restricted between piston 9 bottoms and the base.The said wedge nut 4 outer spring wedges 6 that are with, said spring wedge 6 is fitted with piston 9 bottoms, and said spring 1 is restricted between spring wedge 6 and the base.
The safety valve final controlling element that surges of the utility model, when needs are opened gate valve, can be in fluid cylinder for liquid; Like water or high pressure water, make piston 9 under the effect of air pressure, pressure spring 1; Thereby move down, valve rod moves with piston 9, thereby controls the unlatching of gate valve through valve rod; When the action that need close gate valve, can the liquid in the fluid cylinder be bled off through safety valve, piston moves up under the effect of spring 1, and valve rod moves with piston 9, from through valve rod gate valve being closed.The safety valve final controlling element that surges of the utility model, simple in structure, sealing is reliable, keep in repair easy, long service life, with low cost; Through liquid or highly pressurised liquid exerted pressure in piston top, interlock valve rod and flashboard are opened gate valve, utilize the spring-return switch gate valve; When the final controlling element pressure release, heavy-duty spring can guarantee that gate valve closes automatically, and its operation is very easy, is fit to apply.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (6)
1. safety valve final controlling element that surges; It is characterized in that: it comprises cylinder body (2), base and cylinder cap (14); Said base is arranged at the lower end of cylinder body (2), and said cylinder cap (14) is arranged at the upper end of cylinder body (2), is provided with piston (9) in the said cylinder body (2); Said piston (9) top and cylinder body (2) inwall, cylinder cap form fluid cylinder between (14); Said fluid cylinder is provided with liquid entering hole and safety valve (21), and said piston is connected with the valve rod that passes base on (9), and said piston also is provided with return facilities on (9).
2. the safety valve final controlling element that surges as claimed in claim 1; It is characterized in that: said return facilities comprises wedge nut (4) and spring (1); Said wedge nut (4) is fixed in the bottom of piston (9); Said wedge nut (4) is connected with valve rod, and said spring (1) is placed in outside the valve rod, is restricted between piston (9) bottom and the base.
3. the safety valve final controlling element that surges as claimed in claim 2; It is characterized in that: the outer spring wedge (6) that is with of said wedge nut (4); Said spring wedge (6) is fitted with piston (9) bottom, and said spring (1) is restricted between spring wedge (6) and the base.
4. like claim 1 or the 2 or 3 described safety valve final controlling element that surge; It is characterized in that: the top of said piston (9) is connected with piston rod (9); The top of said cylinder cap (14) is provided with guard shield (20), and said piston rod (9) passes cylinder cap (14) and stretches in the guard shield (20).
5. the safety valve final controlling element that surges as claimed in claim 4; It is characterized in that: the outer Adjusting bolt Adjusting screw (3) that is with of said wedge nut (4); Said Adjusting bolt Adjusting screw (3) is provided with screw, and said piston rod (19) is connected on the piston (9) through flange (10).
6. like claim 1 or 2 or the 3 or 5 described safety valve final controlling element that surge, it is characterized in that: the edge of said piston (9) is provided with O type circle (7) and back-up ring (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120527577XU CN202432083U (en) | 2011-12-16 | 2011-12-16 | Liquid-operated safety valve actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120527577XU CN202432083U (en) | 2011-12-16 | 2011-12-16 | Liquid-operated safety valve actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202432083U true CN202432083U (en) | 2012-09-12 |
Family
ID=46781529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120527577XU Expired - Fee Related CN202432083U (en) | 2011-12-16 | 2011-12-16 | Liquid-operated safety valve actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202432083U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672130A (en) * | 2013-12-18 | 2014-03-26 | 纽威石油设备（苏州）有限公司 | Deepwater underwater brake valve hydraulic driver |
| CN105650338A (en) * | 2015-12-17 | 2016-06-08 | 高卫兵 | Axial flow type safety cut-off valve |
| CN108799251A (en) * | 2018-07-10 | 2018-11-13 | 芜湖岭上信息科技有限公司 | Dismounting auxiliary device is installed and used and cleans for hydraulic cylinder |
-
2011
- 2011-12-16 CN CN201120527577XU patent/CN202432083U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672130A (en) * | 2013-12-18 | 2014-03-26 | 纽威石油设备（苏州）有限公司 | Deepwater underwater brake valve hydraulic driver |
| CN105650338A (en) * | 2015-12-17 | 2016-06-08 | 高卫兵 | Axial flow type safety cut-off valve |
| CN108799251A (en) * | 2018-07-10 | 2018-11-13 | 芜湖岭上信息科技有限公司 | Dismounting auxiliary device is installed and used and cleans for hydraulic cylinder |
| CN108799251B (en) * | 2018-07-10 | 2019-11-29 | 浙江迈兴机械股份有限公司 | Dismounting auxiliary device is installed and used and cleaned for hydraulic cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SICHUAN TIAN'GONG PETROLEUM EQUIPMENT MANUFACTURIN Free format text: FORMER NAME: SICHUAN TIAN'GONG VALVE MANUFACTURING CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 618300 Hexing Town, Guanghan, Sichuan, Deyang Patentee after: Sichuan Tiangong Petroleum Equipment Manufacture Co., Ltd. Address before: 618300 Hexing Town, Guanghan, Sichuan, Deyang Patentee before: Sichuan Tiangong Valve Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20151216 |
|
| EXPY | Termination of patent right or utility model |