CN202432082U - Pneumatic piston type safety valve actuator - Google Patents
Pneumatic piston type safety valve actuator Download PDFInfo
- Publication number
- CN202432082U CN202432082U CN2011205275479U CN201120527547U CN202432082U CN 202432082 U CN202432082 U CN 202432082U CN 2011205275479 U CN2011205275479 U CN 2011205275479U CN 201120527547 U CN201120527547 U CN 201120527547U CN 202432082 U CN202432082 U CN 202432082U
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- piston
- cylinder
- safety valve
- nut
- controlling element
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Abstract
The utility model discloses a pneumatic piston type safety valve actuator and belongs to the technical field of valve controlling. The pneumatic piston type safety valve actuator comprises a cylinder body, a cylinder cover, a lower cylinder cover and a base, wherein the cylinder cover is arranged at the upper end of the cylinder body, the lower cylinder cover is arranged at the lower end of the cylinder body, the lower end of the lower cylinder cover is provided with the base, a piston which is matched with the cylinder body is arranged in the cylinder body, the upper portion of the piston, the cylinder body and the cylinder cover form an air cylinder which is provided with an air inlet and a safety valve, and the piston is provided with a return stroke device and a valve rod. The pneumatic piston type safety valve actuator is simple in structure, reliable in sealing, convenient to maintain, long in service life and low in cost; and compressed air is used for exerting pressure on the upper portion of the piston to link the valve rod and a gate plate to open a gate valve, and the gate valve is opened and closed by means of the return of a spring.
Description
Technical field
The utility model relates to a kind of safety valve final controlling element, particularly a kind of Pneumatic piston safety valve final controlling element.
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, and 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 to damage, its life-span of Sealing wherein is short; Cause the life-span short, cost is high, is unfavorable for applying.
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, and sealing is reliable; Keep in repair easy, long service life, Pneumatic piston safety valve final controlling element with low cost; Use this final controlling element; Through pressurized gas 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 technological scheme that the utility model adopts is following:
The Pneumatic piston safety valve final controlling element of the utility model comprises cylinder body, cylinder cap, following cylinder cap and base, and said cylinder cap is arranged at the upper end of cylinder body; Said cylinder cap down is arranged at the lower end of cylinder body; The said lower end of cylinder cap down is provided with base, is provided with the piston that is mated in the said cylinder body, and said piston top forms cylinder with cylinder body, cylinder cap; This cylinder is provided with suction port and safety valve, and said piston is provided with return facilities and valve rod.
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; Following cylinder cap is arranged at the lower end of cylinder body, and the lower end of said down cylinder cap is provided with base, is provided with the piston that is mated in the cylinder body, thereby makes the cylinder portion of this final controlling element of space formation between piston top and cylinder body, the cylinder cap; Its this cylinder is provided with suction port and safety valve, and suction port can be used for air feed in cylinder, moves with driven plunger, and safety valve is used to ensure when the air pressure in the cylinder is too high; Gas is discharged, in the time of perhaps need the gas in the cylinder being discharged, also can operate through this safety valve, piston is provided with return facilities; When needs are opened gate valve, move up thereby need backward stroke of the piston to promote valve rod, thus the unlatching of realization gate valve, when the needs gate valve is closed; Can in cylinder, supply nitrogen etc., make piston move down, move up, gate valve is opened thereby drive valve rod; This final controlling element is opened through the start-up control gate valve, and its automation of backhaul employing, 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 pressurized gas 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 Pneumatic piston safety valve final controlling element of the utility model; Said return facilities comprises the nut that is fixedly connected with piston; The top of said nut is connected with the piston rod that passes cylinder cap, and the below of said nut is connected with valve rod, and said valve rod passes base; Said valve rod is with spring outward, and said spring is restricted between nut and the base.
Owing to adopted said structure, this return facilities comprises 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 nut and the base; Therefore piston can remain the trend that moves upward under the effect of spring force, above 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 closing of this final controlling element control gate valve, need be in cylinder air feed, make piston in cylinder body, overcome spring force and move downward, thereby make valve rod move down with piston, valve rod can be controlled gate valve and close; When needs control gate opening of valves, when need the gas in the cylinder be discharged,, piston returns because receiving the effect of spring force; Valve rod moves up with piston; Thereby the closure of control gate valve, it is through the switching of gas control gate valve, not only environmental protection but also safe and reliable; Operation simultaneously is very easy, is fit to apply.
The Pneumatic piston safety valve final controlling element of the utility model, said nut is with the spring wedge, and fit in the bottom of said spring wedge and piston, and said spring is restricted between spring wedge and the base.
Owing to adopted said structure, in the bottom of piston the spring wedge is set, can be through being threaded; Spring is restricted between spring wedge and the base simultaneously, thereby makes the spring wedge directly to contact with spring, thereby can the masterpiece of spring be used for piston; Avoid the direct contact piston of spring; It is caused damage, guarantee its working life, reduce maintenance cost.
The Pneumatic piston safety valve final controlling element of the utility model, said nut sleeve has spacing swivel nut, and said spacing swivel nut can move up and down with respect to nut.
Owing to adopted said structure, nut sleeve that spacing swivel nut is arranged, spacing swivel nut can move up and down with respect to nut; Make to adopt between this spacing swivel nut and the nut to be threaded, and can adjust the relative position of spacing swivel nut on nut, thereby can adjust the stroke that moves downward with limited piston; And then control piston can be to piston rod applied force square, thereby can adjust according to the situation of reality, guarantees to be fit to the gate valve of a plurality of models; Applied widely, be worthy of popularization.
The Pneumatic piston safety valve final controlling element of the utility model, said piston rod is with pressure cap outward, and said pressure cap is fixedly connected with piston.
Owing to adopted said structure, can piston rod be limited on the piston through pressure cap, it can be moved with piston simultaneously, guarantee that the structure between piston and the piston rod is surely leaned on, safe in utilization convenient.
The Pneumatic piston safety valve final controlling element of the utility model; Said piston is provided with the piston rod that passes cylinder cap; Be provided with lip-type packing and dust ring between piston rod and the cylinder cap, said dust ring is provided with circlip, and said circlip is affixed on dust ring and piston rod.
Owing to adopted said structure, overlapping successively from bottom to top between the top of cylinder cap, piston rod have lip-type packing, dust ring and a circlip, and the sealing of lip-type packing is reliable; Long service life is changed simply, is easy to safeguard; Dust ring gets into the effect that influences piston rod for fear of the impurity such as particle in the external world; Thereby guarantee that final controlling element uses quickly and easily, circlip can guarantee that dust ring can be close to piston rod, guarantees its dustproof effect.
The Pneumatic piston safety valve final controlling element of the utility model is provided with guide collar between said piston rod and the cylinder cap.
Owing to adopted said structure, piston rod can be close to guide collar in cylinder cap, makes guide collar can guide piston rod to come and go and moves, and avoids direct contact the between piston rod and the cylinder cap and the friction that causes, thereby makes its life-span permanent, reduces maintenance cost.
The Pneumatic piston safety valve final controlling element of the utility model, the edge of said piston is provided with wear ring.
Owing to adopted said structure, on the edge of piston wear ring is set, thereby between the edge of avoiding piston and the cylinder body between contact, can guarantee life-span of piston through this wear ring, it is permanent to guarantee that it uses, the reduction maintenance cost.
In sum, owing to adopted technique scheme, the beneficial effect of the utility model is:
1, the Pneumatic piston safety valve final controlling element of the utility model is simple in structure, and sealing is reliable, keep in repair easy, long service life, with low cost;
2, the Pneumatic piston safety valve final controlling element of the utility model is exerted pressure to piston top through pressurized gas, and interlock valve rod and flashboard are opened gate valve, utilize the spring-return switch gate valve;
3, the Pneumatic piston safety valve final controlling element of the utility model, when the final controlling element pressure release, heavy-duty spring can guarantee that gate valve closes automatically, its operation is very easy, is fit to apply.
Description of drawings
Fig. 1 is the structural representation of the Pneumatic piston safety valve final controlling element of the utility model.
Mark among the figure: 1-base, 2-hexagon head bolt, 3-valve rod, cylinder cap under the 4-, 5-spring, 6-bracing ring; The 7-jump ring, 8-silencing apparatus, 9-cylinder body, the spacing swivel nut of 10-, hexagonal awl end Cock screw in the 11-nut, 12-; The 13-wear ring, 14-spring wedge, 15,18,19-O type circle, 16-piston, 17-pressure cap, 20-cylinder cap; The 21-guide collar, 22-lip-type packing, 23-dust ring, 24-circlip, 25-piston rod.
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 Pneumatic piston safety valve final controlling element of the utility model comprises cylinder body 9, cylinder cap 20, following cylinder cap 4 and base 1; Said cylinder cap 20 is arranged at the upper end of cylinder body 9; Said down cylinder cap 4 is arranged at the lower end of cylinder body 9, and the said lower end of cylinder cap 4 down is provided with base 1, and is connected through hexagon head bolt 2 between cylinder cap 4 and the base 1 down; Be provided with the piston 16 that is mated in the said cylinder body 9; Said piston 16 tops and cylinder body 9, cylinder cap 20 form cylinder, and this cylinder is provided with suction port and safety valve, and said piston 16 is provided with return facilities and is connected with the piston rod 25 that passes cylinder cap 4.Said return facilities comprises the nut 11 that is fixedly connected with piston 16; The top of said nut 11 is connected with the piston rod 25 that passes cylinder cap 20; The below of said nut 11 is connected with the valve rod 3 that passes base 1; Be with spring 5 outside the said valve rod 3, said spring 5 is restricted between nut 11 and the base 1.Said nut 11 is with spring wedge 14, and said spring wedge 14 is fitted with the bottom of piston 16, and said spring 5 is restricted between spring wedge 14 and the base 1.Said nut 11 is with spacing swivel nut 10, and said spacing swivel nut 10 can move up and down with respect to nut 11.Be with pressure cap 17 outside the said piston rod 25, said pressure cap 17 is fixedly connected with piston 16.Be provided with lip-type packing 22 and dust ring 23 between said piston rod 25 and the cylinder cap 20, said dust ring 23 is provided with circlip 24, and said circlip 24 is affixed on dust ring 23 and piston rod 25.Be provided with guide collar 21 between said piston rod 25 and the cylinder cap 20; The edge of piston 16 is provided with wear ring 13 and O type circle 15; And wear ring 13 is fitted with cylinder body 9 inwalls with O type circle 15 in use; Be provided with silencing apparatus 8 in the bottom of cylinder body 9, between cylinder cap 20 and cylinder body 9, seal through O type circle equally, between pressure cap 17 and piston rod 25, pressure cap 17 and piston 16, seal through O type circle equally simultaneously.
The Pneumatic piston safety valve final controlling element of the utility model, when needs are closed gate valve, can be in cylinder air feed; Make piston 9 under the effect of air pressure, pressure spring 5, thus move down; Valve rod moves with piston 9, thus closing through piston rod 25 control gate valves; When the action that need open gate valve, can the gas in the cylinder be bled off through safety valve, piston moves up under the effect of spring 5, and valve rod moves with piston 9, from through valve rod gate valve being closed.The Pneumatic piston safety valve final controlling element of the utility model, simple in structure, sealing is reliable, keep in repair easy, long service life, with low cost; Through pressurized gas 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 (8)
1. Pneumatic piston safety valve final controlling element; Comprise cylinder body (9), cylinder cap (20), following cylinder cap (4) and base (1); It is characterized in that: said cylinder cap (20) is arranged at the upper end of cylinder body (9), and said cylinder cap (4) down is arranged at the lower end of cylinder body (9), and the said lower end of cylinder cap (4) down is provided with base (1); Be provided with the piston (16) that is mated in the said cylinder body (9); Said piston (16) top forms cylinder with cylinder body (9), cylinder cap (20), and this cylinder is provided with suction port and safety valve, and said piston (16) is provided with return facilities and valve rod (3).
2. Pneumatic piston safety valve final controlling element as claimed in claim 1; It is characterized in that: said return facilities comprises the nut (11) that is fixedly connected with piston (16); The top of said nut (11) is connected with the piston rod (25) that passes cylinder cap (20), and the below of said nut (11) is connected with valve rod (3), and said valve rod (3) passes base (1); Said valve rod (3) is outer to be with spring (5), and said spring (5) is restricted between nut (11) and the base (1).
3. Pneumatic piston safety valve final controlling element as claimed in claim 2; It is characterized in that: said nut (11) is with spring wedge (14); Said spring wedge (14) is fitted with the bottom of piston (16), and said spring (5) is restricted between spring wedge (14) and the base (1).
4. Pneumatic piston safety valve final controlling element as claimed in claim 2 is characterized in that: said nut (11) is with spacing swivel nut (10), and said spacing swivel nut (10) can move up and down with respect to nut (11).
5. Pneumatic piston safety valve final controlling element as claimed in claim 2 is characterized in that: said piston rod (25) is outer to be with pressure cap (17), and said pressure cap (17) is fixedly connected with piston (16).
6. like each described Pneumatic piston safety valve final controlling element in the claim 2 to 5; It is characterized in that: said piston (16) is provided with the piston rod (25) that passes cylinder cap (20); Be provided with lip-type packing (22) and dust ring (23) between piston rod (25) and the cylinder cap (20); Said dust ring (23) is provided with circlip (24), and said circlip (24) is affixed on dust ring (23) and piston rod (25).
7. Pneumatic piston safety valve final controlling element as claimed in claim 6 is characterized in that: be provided with guide collar (21) between said piston rod (25) and the cylinder cap (20).
8. like each described Pneumatic piston safety valve final controlling element in claim 1 to 5 or 7, it is characterized in that: the edge of said piston (16) is provided with wear ring (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205275479U CN202432082U (en) | 2011-12-16 | 2011-12-16 | Pneumatic piston type safety valve actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205275479U CN202432082U (en) | 2011-12-16 | 2011-12-16 | Pneumatic piston type safety valve actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202432082U true CN202432082U (en) | 2012-09-12 |
Family
ID=46781528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205275479U Expired - Fee Related CN202432082U (en) | 2011-12-16 | 2011-12-16 | Pneumatic piston type safety valve actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202432082U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151656A (en) * | 2016-08-17 | 2016-11-23 | 亚新铸造（苏州）有限公司 | A kind of pneumatic controller of relief valve |
| CN106151657A (en) * | 2016-08-17 | 2016-11-23 | 亚新铸造（苏州）有限公司 | The pneumatic toucher quickly opened for relief valve and close |
| CN110848448A (en) * | 2019-12-17 | 2020-02-28 | 昆山新莱洁净应用材料股份有限公司 | Pneumatic actuator |
| CN110864158A (en) * | 2019-12-18 | 2020-03-06 | 昆山新莱洁净应用材料股份有限公司 | Long-life pneumatic actuator |
-
2011
- 2011-12-16 CN CN2011205275479U patent/CN202432082U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151656A (en) * | 2016-08-17 | 2016-11-23 | 亚新铸造（苏州）有限公司 | A kind of pneumatic controller of relief valve |
| CN106151657A (en) * | 2016-08-17 | 2016-11-23 | 亚新铸造（苏州）有限公司 | The pneumatic toucher quickly opened for relief valve and close |
| CN110848448A (en) * | 2019-12-17 | 2020-02-28 | 昆山新莱洁净应用材料股份有限公司 | Pneumatic actuator |
| CN110864158A (en) * | 2019-12-18 | 2020-03-06 | 昆山新莱洁净应用材料股份有限公司 | Long-life pneumatic actuator |
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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 |