CN101571208B - Valve closing-locking device - Google Patents
Valve closing-locking device Download PDFInfo
- Publication number
- CN101571208B CN101571208B CN2009100119397A CN200910011939A CN101571208B CN 101571208 B CN101571208 B CN 101571208B CN 2009100119397 A CN2009100119397 A CN 2009100119397A CN 200910011939 A CN200910011939 A CN 200910011939A CN 101571208 B CN101571208 B CN 101571208B
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- China
- Prior art keywords
- pin hole
- locking
- switch
- hole
- slide bar
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- 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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- Preventing Unauthorised Actuation Of Valves (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention provides a valve closing-locking device. A connecting rod body connected with a valve shaft is provided with a round pin hole; the front of the round pin hole is connected with a flat-hole guide ring and a spiral driving device in turn; the back of the round pin hole is connected with a locking-state sensing device; the spiral driving device is provided with a hexagonal-head driving sleeve; a nut fixed with the driving sleeve is arranged in the driving sleeve; movable pins are arranged in the round pin hole, an axial flat hole and a hexagonal-head driving sleeve hole; self-lubricating sliding bearings are arranged between the movable pins and the round pin hole; the locking-state sensing device is provided with a round tube shell; the front end of the shell is provided with aflange; a slide bar is arranged in the shell; a spring is arranged between a boss in the middle of the slide bar and back end of the shell; an axial switch seat is fixed outside the round tube shell; the front and the back of the switch seat are provided with an unlocking switch and a locking switch respectively; and the back end of the slide bar is provided with a switch trigger. As the self-lub ricating sliding bearings are arranged between the round pin hole and the movable pins, the movable pins are driven to move back and forth by use of a spiral in locking and unlocking processes. Therefore, the valve closing-locking device is laborsaving to operate and can send out switching signals in the locking and unlocking processes respectively, so that valve-locking states can be known in thedistance.
Description
Technical field
The present invention relates to a kind of auxiliary device of valve, the manual-lock during particularly a kind of valve closing.
Background technique
Valve is used for fluid delivery pipeline, valve opening and close flowing and ending of may command fluid.Valve need be closed in the fluid delivery pipeline maintenance process, and service work is finished late gate and could be opened, and for the safety of service work, valve will be used the locking device Locked valve when closing, and keeps the closed condition of valve, in order to avoid misoperation causes security incident.In the prior art, valve closing-locking device has the connecting rod shank that is connected on the valve shaft, connecting rod shank has pin hole, loose pin is arranged in the pin hole, the pin hole sidewall has strip hole, the driving lever that stretches out strip hole is arranged on the loose pin, the lockhole relative when having on the valve body with above-mentioned loose pin at valve closing, valve is in off position the time, connecting rod shank is driven the circular pin hole move on the connecting rod shank and the relative position of lockhole on the valve body by valve shaft, stir driving lever with hand, the loose pin in the circular pin hole on the connecting rod shank is inserted in the lockhole on the valve body along the length direction of loose pin and make valve keep lock state.This valve closing state locking device has following deficiency:
1. when valve needs locking or release in off position, be to stir that driving lever inserts the loose pin in the tubular pin-and-hole on the connecting rod shank in the lockhole on the valve body or transfering in the lockhole of the loose pin in the tubular pin-and-hole on the connecting rod shank from the valve body along the axial direction of loose pin with hand, because resistance is bigger, direct control is required great effort very much;
2. lock state and the released state of valve when closing can only be observed at the scene, can not teletransmission.
Summary of the invention
The objective of the invention is in order to overcome above-mentioned deficiency, propose that a kind of valve locks in off position or more laborsaving during release, to the locking and unlocking state can remote transfer signal valve closing-locking device.
The present invention is achieved using the following method.
Valve closing-locking device has the connecting rod shank that is connected on the valve shaft, pin hole is arranged on the connecting rod shank, the front end of pin hole is connected with guide ring and screw drives device successively, guide ring has axial flat hole, the screw drives device has outer sleeve, be inlaid with six square toes driving casings in the outer sleeve, the bearing that bears bi-directional axial power is arranged in the outer sleeve, have in the driving casing and its fixing nut, pin hole, the axis of axial flat hole and six square toes driving casings is on same straight line, pin hole, axial flat hole and six square toes drive in the trepanning loose pin, the leading portion of loose pin has the outside thread that matches with nut, there is the flat shaft part that matches with axial flat hole in the stage casing of loose pin, the back segment of loose pin is the cylindrical section that matches with pin hole, between cylindrical section and the pin hole self-lubricating plain bearing is arranged, the lock state sensing device has the pipe housing, the front end of pipe housing has adpting flange, in the pipe housing slide bar is arranged, slide bar can stretch out from the two ends of pipe housing, there is round ring boss the centre of slide bar, in the pipe housing, between the rear end of the round ring boss of slide bar and pipe housing spring is arranged, the outside of pipe housing rear end is fixed with the axial switch seat, before the switch base, after the unlock switch and the locking switch of exportable switching signal are arranged respectively, there is the switch trigger of unlock switch and locking switch the rear end of slide bar.
Before the use, the adpting flange of lock state sensing device is connected in the rear end of lockhole on the valve body.
Behind throttle down, the pin hole on the connecting rod shank communicates with lockhole on the valve body.
Behind throttle down, when valve is in released state, the slide bar of lock state sensing device is under the effect of spring force, the slide bar leading portion stretches out the pipe housing, in the front end aperture in the lockhole of the front end of slide bar on valve body, when being in the lock state, the rear end of loose pin is in the aperture, rear end of pin hole, the switch trigger of slide bar rear end is triggering the unlock switch state, unlock switch output unlocking signal.
Behind throttle down, when needing the closed condition of Locked valve, moving six square toes driving casings with spanner is rotated in the forward, the constraint that loose pin is subjected to axial flat hole on the guide ring because of the flat shaft part in stage casing is straight line motion backward, loose pin moves backward to insert in the lockhole on the valve body and overcome spring force and promotes slide bar and move backward, valve is in closes lock state, this moment, the switch trigger of slide bar rear end triggered the locking switch state, locking switch output locking signal.
Before the Open valve, counterrotating six square toes driving casings, loose pin travels forward, loose pin leaves the lockhole on the valve body, remove the lock state of valve closing, simultaneously, spring force promotes slide bar and travels forward along with withdrawing from of loose pin, the switch trigger of the rear end of slide bar recovers to trigger the unlock switch state at this moment, unlock switch output unlocking signal.
The present invention has self-lubricating plain bearing between pin hole and loose pin, when the locking and unlocking, use the forward and backward straight line motion of screw drives loose pin, rapid operation, when the locking and unlocking, switching signal can be sent respectively, the working state of loose pin and then the action of control valve correctly can be understood in control far away chamber.
Below in conjunction with accompanying drawing, the present invention is further described.
Description of drawings
Fig. 1 is that the master of valve closing state locking device when lock state looks cross-sectional schematic;
Fig. 2 is that schematic representation cuts open in master the look office of valve closing state locking device when released state;
Fig. 3 is that the A of Fig. 1 is to schematic representation;
Fig. 4 is that the B of Fig. 1 is to schematic representation;
Fig. 5 is the C-C generalized section of Fig. 1;
Fig. 6 is that the master of loose pin looks schematic representation;
Fig. 7 is the D-D cross-sectional schematic of Fig. 6;
Fig. 8 is equipped with valve master of the present invention to look schematic representation;
Fig. 9 is that schematic representation cuts open in the side-looking office of Fig. 7.
Embodiment
Among Fig. 1～Fig. 7, valve closing-locking device has the connecting rod shank 1 that is connected on the valve shaft, pin hole 2 is arranged on the connecting rod shank, the front end of pin hole is connected with guide ring 3 and screw drives device 4 successively, the rear end of pin hole is connected with lock state sensing device 24, guide ring has axial flat hole 5, the screw drives device has outer sleeve 6, be inlaid with six square toes driving casings 26 in the outer sleeve, the bearing 27 that bears bi-directional axial power is arranged in the outer sleeve, have in the driving casing and its fixing nut 7, pin hole, axial flat hole and six square toes drive the axis of trepanning on same straight line, pin hole, in axial flat hole and the six square toes driving casings loose pin 8 is arranged, the leading portion of loose pin has the outside thread 9 that matches with nut, there is the flat shaft part 10 that matches with axial flat hole in the stage casing of loose pin, the back segment of loose pin is the cylindrical section 11 that matches with pin hole, self-lubricating plain bearing 25 is arranged between cylindrical section and the pin hole, the lock state sensing device has pipe housing 12, the front end of pipe housing has adpting flange 13, slide bar 14 is arranged in the pipe housing, slide bar can stretch out from the two ends of pipe housing, there is round ring boss 15 centre of slide bar, in the pipe housing, helical spring or dish spring 16 are arranged between the rear end of the round ring boss of slide bar and pipe housing, the outside of pipe housing rear end is fixed with axial switch seat 17, before the switch base, after the unlock switch 18 and the locking switch 19 of exportable switching signal are arranged respectively, there is the switch trigger 20 of unlock switch and locking switch the rear end of slide bar.
Among Fig. 8, Fig. 9, the present invention is installed in the I place of valve 21, and connecting rod shank 1 is connected on the valve shaft 22, and lockhole 23 is arranged on the valve body, and lock state sensing device 12 is in the rear end of lockhole.
Claims (1)
1. valve closing-locking device, the connecting rod shank that is connected on the valve shaft is arranged, pin hole is arranged on the connecting rod shank, it is characterized in that: the front end of pin hole is connected with guide ring and screw drives device successively, guide ring has axial flat hole, the screw drives device has outer sleeve, be inlaid with six square toes driving casings in the outer sleeve, the bearing that bears bi-directional axial power is arranged in the outer sleeve, have in the driving casing and its fixing nut, pin hole, the axis of axial flat hole and six square toes driving casings is on same straight line, pin hole, axial flat hole and six square toes drive in the trepanning loose pin, the leading portion of loose pin has the outside thread that matches with nut, there is the flat shaft part that matches with axial flat hole in the stage casing of loose pin, the back segment of loose pin is the cylindrical section that matches with pin hole, between cylindrical section and the pin hole self-lubricating plain bearing is arranged, the lock state sensing device has the pipe housing, the front end of pipe housing has adpting flange, the adpting flange of lock state sensing device is connected in the rear end of lockhole on the valve body, behind throttle down, pin hole on the connecting rod shank communicates with lockhole on the valve body, in the pipe housing slide bar is arranged, slide bar can stretch out from the two ends of pipe housing, there is round ring boss the centre of slide bar, in the pipe housing, between the rear end of the round ring boss of slide bar and pipe housing spring is arranged, the outside of pipe housing rear end is fixed with the axial switch seat, before the switch base, after the unlock switch and the locking switch of exportable switching signal are arranged respectively, there is the switch trigger of unlock switch and locking switch the rear end of slide bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100119397A CN101571208B (en) | 2009-06-11 | 2009-06-11 | Valve closing-locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100119397A CN101571208B (en) | 2009-06-11 | 2009-06-11 | Valve closing-locking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101571208A CN101571208A (en) | 2009-11-04 |
| CN101571208B true CN101571208B (en) | 2010-07-21 |
Family
ID=41230640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100119397A Expired - Fee Related CN101571208B (en) | 2009-06-11 | 2009-06-11 | Valve closing-locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101571208B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387268B (en) * | 2015-12-08 | 2018-03-27 | 国家电网公司 | A kind of machinery valve standard-sized sheet, closed positions locking device |
| CN108441422A (en) * | 2018-04-08 | 2018-08-24 | 郭庆 | A kind of soil bacteria screening system |
| JP7479587B2 (en) * | 2020-02-28 | 2024-05-09 | Smc株式会社 | Gate valve |
-
2009
- 2009-06-11 CN CN2009100119397A patent/CN101571208B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101571208A (en) | 2009-11-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NENGFA WEIYE TIELING VALVE CO., LTD. Free format text: FORMER OWNER: NENGFA WEIYE ENERGY TECHNOLOGY CO., LTD.;LIAONING PROVINCE Effective date: 20130408 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130408 Address after: 112000 Tieling City, Liaoning province Yinzhou District Industrial Park No. 39 Liaohai road two Patentee after: NENGFA WEIYE TIELING VALVE JOINT-STOCK CO., LTD. Address before: 112000 Tieling City, Liaoning province Yinzhou District No. 118 Liaoning Guangyu Street Fat Albert Energy Technology Co Ltd Patentee before: Liaoning Nengfa Weiye Energy Technology Co., Ltd. |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20091104 Assignee: Liaoning Nengfa Weiye Energy Technology Co., Ltd. Assignor: NENGFA WEIYE TIELING VALVE JOINT-STOCK CO., LTD. Contract record no.: 2013210000129 Denomination of invention: Valve closing-locking device Granted publication date: 20100721 License type: Exclusive License Record date: 20130930 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100721 Termination date: 20140611 |
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| EXPY | Termination of patent right or utility model |