CN203130657U - Hydraulic cylinder used for driving butterfly valve and provided with dual-locking device - Google Patents
Hydraulic cylinder used for driving butterfly valve and provided with dual-locking device Download PDFInfo
- Publication number
- CN203130657U CN203130657U CN 201220745123 CN201220745123U CN203130657U CN 203130657 U CN203130657 U CN 203130657U CN 201220745123 CN201220745123 CN 201220745123 CN 201220745123 U CN201220745123 U CN 201220745123U CN 203130657 U CN203130657 U CN 203130657U
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- hydraulic cylinder
- cylinder
- piston rod
- butterfly valve
- locking
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Abstract
Disclosed is a hydraulic cylinder used for driving a butterfly valve and provided with a dual-locking device. According to the hydraulic cylinder used for driving the butterfly valve and provided with the dual-locking device, a limiting ring is arranged on the front section of a rod body, extending out of a cylinder body, of a piston rod, a vertical locking hydraulic cylinder is connected with the upper end of the front end of the cylinder body, a portis formed in a lower cylinder cover, a spring is arranged in the cylinder body and between a piston and an upper cylinder cover, an X-shaped locking piece is connected with the lower end of the piston rod extending out of the lower cylinder cover, a semicircle orifice of the X-shaped locking piece abuts against the front side of the limiting ring on the piston rod of the hydraulic cylinder used for driving the butterfly valve when the piston rod of the hydraulic cylinder used for driving the butterfly valve retracts and a piston rod of the locking hydraulic cylinder extends downwards, an axial through hole is formed in the middle of an upper cylinder cover of the locking hydraulic cylinder, a nut is arranged on the axial through hole, and a screw located on the axis of the locking hydraulic cylinder is arranged on the nut in a screwed mode. Due to the fact that the hydraulic cylinder used for driving the butterfly valve is connected with the locking hydraulic cylinder and the locking state of the locking hydraulic cylinder is controlled by the nut-screw dual-locking device, starting driving force is effectively prevented from being applied to the butterfly valve. The butterfly valve closing state locking device is reasonable in position and structure.
Description
Technical field
The utility model relates to a kind of butterfly valve and drives oil hydraulic cylinder, and particularly a kind of butterfly valve drives the closing-locking device of oil hydraulic cylinder.
Background technique
Large-diameter butterfly valve need be used the Driven by Hydraulic Cylinder opening and closing.Be connected with connecting rod shank between the hydraulic cylinder piston rod of driving butterfly valve opening and closing and the valve shaft, when hydraulic cylinder piston rod stretches out, by the connecting rod shank opened butterfly valve, during the hydraulic cylinder piston rod indentation, close butterfly valve by connecting rod shank.
When the pipe fitting in butterfly valve downstream needs repairing, close with the Driven by Hydraulic Cylinder butterfly valve, the maintenance man could carry out the maintenance operation to pipe fitting safely in the pipeline in downstream or around the pipeline.When butterfly plate is in the complete shut-down state, for maintenance man's safety, the closed condition of butterfly valve is locked, the butterfly valve of Driven by Hydraulic Cylinder has closing-locking device.
In the prior art, butterfly valve closed condition locking device is mounted in the holding down bolt on the body of butterfly valve, after butterfly valve cuts out, blocks connecting rod shank between hydraulic cylinder piston rod and the valve shaft with holding down bolt, prevents the connecting rod shank action, makes the butterfly valve closed condition locked.
This butterfly valve closed condition locking device breaks down in driving oil hydraulic cylinder hydraulic system and element, or operation misoperation, hydraulic cylinder piston rod can stretch out, by connecting rod shank active force is added on the holding down bolt on the body of butterfly valve, because the driving force of oil hydraulic cylinder is bigger, above-mentioned fault or misoperation probably cause the pipeline destroyed that links to each other to the lower margin basis of butterfly valve body, butterfly valve or with butterfly valve by the holding down bolt on the butterfly valve body.Mounting point and the structure of this butterfly valve closed condition locking device are very unreasonable.
Summary of the invention
The purpose of this utility model is in order to overcome above-mentioned deficiency, proposes a kind of mounting point and rational in infrastructure have twin-lock and decide the butterfly valve of device and drive oil hydraulic cylinder.
The utility model is realized with the following method.
Having twin-lock decides the butterfly valve of device and drives oil hydraulic cylinder cylinder body is arranged, piston is arranged in the cylinder body, piston is connected with the piston rod that stretches out the cylinder body front end, before the cylinder body, rear side has the hydraulic medium that communicates with inner chamber of cylinder block to import and export, piston rod stretches out limited circle of position ring on the body of rod leading portion of cylinder body, the top of cylinder body front end is connected with the perpendicular locking oil hydraulic cylinder of axis of axis and cylinder body, the locking oil hydraulic cylinder has cylinder body, the top and bottom of cylinder body are connected with cylinder cap respectively, the piston rod that links to each other with piston in the cylinder body stretches out from following cylinder cap, there is the hydraulic medium that communicates with inner chamber of cylinder block to import and export on the following cylinder cap, in the cylinder body, between piston and the upper cylinder cover spring is arranged, the lower end of piston rod is connected with the fork-shaped locking plate, and the semicircle orifice that matches with the external diameter that drives hydraulic cylinder piston rod is arranged on the prong of fork-shaped locking plate, drives oil hydraulic cylinder
The piston rod indentation time, when the piston rod that locks oil hydraulic cylinder simultaneously stretches out downwards, the semicircle orifice of fork-shaped locking plate is against the front that drives hydraulic cylinder piston rod upper limit annulus, there is axial hole centre at the upper cylinder cover that locks oil hydraulic cylinder, nut is arranged on the axial hole, be rotary with the screw rod on the locking hydraulic cylinder axis on the nut.
In the normal state, the locking hydraulic cylinder piston rod stretches out because of the power that the spring in the locking oil hydraulic cylinder is stretched out downwards, and the semicircle orifice of locking hydraulic cylinder piston rod lower end fork-shaped locking plate is against on the piston rod that drives oil hydraulic cylinder.If the fork-shaped locking plate is in the front of spacing annulus, the piston rod that drives oil hydraulic cylinder can not stretch out, and has only the fork-shaped locking plate in the back of spacing annulus, and the piston rod that drives oil hydraulic cylinder just can stretch out.
After hydraulic medium enters the inner chamber of locking oil hydraulic cylinder from the hydraulic medium that locks cylinder cap under the oil hydraulic cylinder, the piston that can promote to lock oil hydraulic cylinder overcomes spring force and moves upward, the piston rod indentation of locking oil hydraulic cylinder, the fork-shaped locking plate be raised to spacing annulus above, allow spacing annulus surmount the fork-shaped locking plate.
During use, allow locking hydraulic cylinder piston rod indentation with hydraulic pressure, the fork-shaped locking plate of locking hydraulic cylinder piston rod lower end leaves the spacing annulus that drives hydraulic cylinder piston rod, allowing the driving hydraulic cylinder piston rod stretch out with hydraulic pressure can drive the butterfly valve unlatching, can drive butterfly valve with the indentation of hydraulically-driven hydraulic cylinder piston rod and close.
After driving hydraulic cylinder piston rod indentation butterfly valve cuts out, allow the locking hydraulic cylinder piston rod stretch out downwards, the fork-shaped locking plate of locking hydraulic cylinder piston rod lower end is against on the piston rod that drives oil hydraulic cylinder and keeps off in the front that drives the spacing annulus of hydraulic cylinder piston rod, the piston rod that drives oil hydraulic cylinder can not be stretched out, screw rod on the rotational lock oil hydraulic cylinder upper cylinder cover nut again, allow screw rod be against on the interior piston of locking oil hydraulic cylinder downwards, piston is withstood motionless with screw rod, allow the lock state of locking oil hydraulic cylinder be in the lock state, namely butterfly valve is in twin-lock and decides state.
Allow the butterfly valve of closing be in above-mentioned twin-lock and decide state.When butterfly valve is decided state at twin-lock, in case driving oil hydraulic cylinder hydraulic system and element take place to break down, or operation misoperation, when causing the piston rod that drives oil hydraulic cylinder that the trend of stretching out is arranged, because of the spacing annulus front of fork-shaped locking plate retaining at the driving hydraulic cylinder piston rod, the piston rod that drives oil hydraulic cylinder can not be stretched out, allow butterfly valve be in lock state stably, and the lock state of locking oil hydraulic cylinder also keeps locking with the nut-screw device, and dual locking can guarantee more effectively that the butterfly valve of cutting out can not open because of unexpected.
Driving oil hydraulic cylinder of the present utility model is connected with the locking oil hydraulic cylinder, the piston-rod lower end of locking oil hydraulic cylinder is connected with the fork-shaped locking plate, can allow the butterfly valve of closing be in the lock state, the lock state of locking oil hydraulic cylinder has the nut-screw locking device, in case driving oil hydraulic cylinder hydraulic system and element take place to break down, or operation misoperation, when causing the piston rod that drives oil hydraulic cylinder that the trend of stretching out is arranged, dual locking can guarantee can not produce butterfly valve to open driving force effectively, can not cause the butterfly valve body, the lower margin of butterfly valve basis or the pipeline destroyed that links to each other with butterfly valve, the position of this butterfly valve closed condition locking device and rational in infrastructure.
Below in conjunction with accompanying drawing, the utility model is further described.
Description of drawings
Fig. 1 a kind ofly has twin-lock and decide the master office of looking of the butterfly valve driving oil hydraulic cylinder of device and cuts open schematic representation according to what invention scheme of the present utility model proposed;
Fig. 2 is that schematic representation cuts open in the office of overlooking of Fig. 1;
Fig. 3 is the A-A cross-sectional schematic of Fig. 1.
Embodiment
Among Fig. 1 ~ Fig. 3, having twin-lock decides the butterfly valve of device and drives oil hydraulic cylinder cylinder body 1 is arranged, piston 2 is arranged in the cylinder body, piston is connected with the piston rod 3 that stretches out the cylinder body front end, before the cylinder body, rear side has the hydraulic medium that communicates with inner chamber of cylinder block to import and export 4,5, piston rod stretches out limited circle of position ring 6 on the body of rod leading portion of cylinder body, the top of cylinder body front end is connected with the perpendicular locking oil hydraulic cylinder 7 of axis of axis and cylinder body by support 16, the locking oil hydraulic cylinder has cylinder body 8, the top and bottom of cylinder body are connected with cylinder cap 9 respectively, 10, the piston rod 11 that links to each other with piston in the cylinder body stretches out from following cylinder cap, there is the hydraulic medium that communicates with inner chamber of cylinder block to import and export 12 on the following cylinder cap, in the cylinder body, upper cylinder cover is connected with axially directed bar 17, in the cylinder body, the spring 13 that is enclosed within on the guide rod is arranged between piston and the upper cylinder cover, the lower end of piston rod is connected with fork-shaped locking plate 14, the semicircle orifice 15 that matches with the external diameter that drives hydraulic cylinder piston rod is arranged on the prong of fork-shaped locking plate, when driving the piston rod indentation of oil hydraulic cylinder, when the piston rod that locks oil hydraulic cylinder simultaneously stretches out downwards, the semicircle orifice of fork-shaped locking plate is against the spacing annulus front that drives on the hydraulic cylinder piston rod, there is axial hole 18 centre at the upper cylinder cover that locks oil hydraulic cylinder, nut 19 is arranged on the axial hole, be rotary with the screw rod 20 on the locking hydraulic cylinder axis on the nut.
Claims (1)
1. one kind has the butterfly valve driving oil hydraulic cylinder that twin-lock is decided device, include cylinder body, piston is arranged in the cylinder body, piston is connected with the piston rod that stretches out the cylinder body front end, before the cylinder body, rear side has the hydraulic medium that communicates with inner chamber of cylinder block to import and export, it is characterized in that: piston rod stretches out limited circle of position ring on the body of rod leading portion of cylinder body, the top of cylinder body front end is connected with the perpendicular locking oil hydraulic cylinder of axis of axis and cylinder body, the locking oil hydraulic cylinder has cylinder body, the top and bottom of cylinder body are connected with cylinder cap respectively, the piston rod that links to each other with piston in the cylinder body stretches out from following cylinder cap, there is the hydraulic medium that communicates with inner chamber of cylinder block to import and export on the following cylinder cap, in the cylinder body, between piston and the upper cylinder cover spring is arranged, the lower end of piston rod is connected with the fork-shaped locking plate, the semicircle orifice that matches with the external diameter that drives hydraulic cylinder piston rod is arranged on the prong of fork-shaped locking plate, when driving the piston rod indentation of oil hydraulic cylinder, when the piston rod that locks oil hydraulic cylinder simultaneously stretches out downwards, the semicircle orifice of fork-shaped locking plate is against the front that drives hydraulic cylinder piston rod upper limit annulus, there is axial hole centre at the upper cylinder cover that locks oil hydraulic cylinder, nut is arranged on the axial hole, be rotary with the screw rod on the locking hydraulic cylinder axis on the nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220745123 CN203130657U (en) | 2012-12-29 | 2012-12-29 | Hydraulic cylinder used for driving butterfly valve and provided with dual-locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220745123 CN203130657U (en) | 2012-12-29 | 2012-12-29 | Hydraulic cylinder used for driving butterfly valve and provided with dual-locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203130657U true CN203130657U (en) | 2013-08-14 |
Family
ID=48938637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220745123 Expired - Fee Related CN203130657U (en) | 2012-12-29 | 2012-12-29 | Hydraulic cylinder used for driving butterfly valve and provided with dual-locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203130657U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071730A (en) * | 2017-08-24 | 2018-05-25 | 深圳市罗伯医疗科技有限公司 | A kind of main passive damping device |
-
2012
- 2012-12-29 CN CN 201220745123 patent/CN203130657U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071730A (en) * | 2017-08-24 | 2018-05-25 | 深圳市罗伯医疗科技有限公司 | A kind of main passive damping device |
| CN108071730B (en) * | 2017-08-24 | 2020-10-13 | 深圳市罗伯医疗科技有限公司 | Active and passive damper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Liaoning Nengfa Weiye Energy Technology Co., Ltd. Assignor: NENGFA WEIYE TIELING VALVE JOINT-STOCK CO., LTD. Contract record no.: 2013210000129 Denomination of utility model: Hydraulic cylinder used for driving butterfly valve and provided with dual-locking device Granted publication date: 20130814 License type: Exclusive License Record date: 20130930 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20131229 |