CN204099634U - Oil field locking leading screw gate valve - Google Patents
Oil field locking leading screw gate valve Download PDFInfo
- Publication number
- CN204099634U CN204099634U CN201420497490.6U CN201420497490U CN204099634U CN 204099634 U CN204099634 U CN 204099634U CN 201420497490 U CN201420497490 U CN 201420497490U CN 204099634 U CN204099634 U CN 204099634U
- Authority
- CN
- China
- Prior art keywords
- leading screw
- valve
- spring
- dead bolt
- oil field
- Prior art date
- 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
Links
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- Preventing Unauthorised Actuation Of Valves (AREA)
Abstract
Oil field locking leading screw gate valve, primarily of valve body, flap, leading screw valve rod and handwheel composition, copper sheathing bottom between leading screw valve rod and handwheel connects a locking engagement, copper sheathing and locking engagement are overall structure, the main body of locking engagement is an arc sleeve, arc sleeve two ends side inner walls arranges some lock tongue slots, the lock tongue slot outside that arc sleeve one end side inwall is arranged and inside arrange keyhole and dead bolt respectively, dead bolt inner surface is arranged the screw thread matched with the screw thread of leading screw valve rod, dead bolt rear end connects a spring, the spring the other end is fixed in lock tongue slot, keyhole is connected with spring by spring driving lever.The utility model arranges the copper sheathing that has latch functions on the gate valve in existing oil field, achieve valve and only have the object that could be controlled by staff, prevent non-working person to change normal production that valve state affects oil field, has the advantage that structure is simple and easy to use.
Description
Technical field
The utility model relates to oil field pipe valve technology field, is specifically related to a kind of oil field locking leading screw gate valve.
Background technique
The valve that oil field pipe is installed is in Chang Kai or normally off mostly, steal to place lawless person, at present a lot of method closed is taken to oil field pipe valve, change valve state to prevent lawless person and carry out illegal action, general valve adopts common hex head bolt fixed closed usually, HEX HEAD CAP SCREWS dismounting is simple and convenient, and extracting tool is general, easily looks for.But because conventional hexagonal bolt does not have anti-theft feature, cause valve to be easy to others and rotate its using state of change, immeasurable impact is caused on field produces, because a lot of Oil/gas Well is high-pressure oil-gas well, easily cause the eruption of Oil/gas Well in lawless person's actuating valve process, cause gas blowout accident to occur, easily burn during blowout, explode, maintenance man cannot be close, causes huge loss, befouling environment to country.
Model utility content
The utility model provides a kind of oil field locking leading screw gate valve, and the oil field valve existed to solve prior art is easily changed by non-working person the problem that working state affects field produces.
The utility model is primarily of valve body, flap, leading screw valve rod and handwheel composition, solving technological scheme that its technical problem adopts is that copper sheathing bottom between leading screw valve rod and handwheel connects a locking engagement, copper sheathing and locking engagement are overall structure, the main body of locking engagement is an arc sleeve, arc sleeve two ends side inner walls arranges some lock tongue slots, the lock tongue slot outside that arc sleeve one end side inwall is arranged and inside arrange keyhole and dead bolt respectively, dead bolt inner surface is arranged the screw thread matched with the screw thread of leading screw valve rod, dead bolt rear end connects a spring, the spring the other end is fixed in lock tongue slot, keyhole is connected with spring by spring driving lever.
The working principle of the utility model gate valve is, by valve installation on oil field pipe, according to technological requirement, valve is made to be in Chang Kai or normally off, then use key through the keyhole of locking engagement, the spring of dead bolt rear end connection is discharged by spring driving lever, dead bolt stretches out the lock tongue slot entering the arc sleeve the other end from the lock tongue slot of arc sleeve one end, the screw thread of dead bolt internal surface and the screw thread of leading screw valve rod are combined closely, if there is lawless person to attempt to steal valve, key must be used to open, if locking engagement is opened in lawless person's violence, just need the screw thread destroying dead bolt internal surface just can open locking engagement, but the screw thread of the screw thread of dead bolt internal surface and leading screw valve rod is combined closely, once the screw thread of dead bolt internal surface is damaged, the screw thread of leading screw valve rod also can break down accordingly, such valve has been exactly the function opened and closed, still can keep its state that should be in, ensure that the normal operation in oil field.
The utility model arranges the copper sheathing that has latch functions on the gate valve in existing oil field, achieve valve and only have the object that could be controlled by staff, prevent non-working person to change normal production that valve state affects oil field, has the advantage that structure is simple and easy to use.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model locking engagement;
Fig. 3 is the schematic top plan view of the utility model locking engagement.
1 valve body, 2 flaps, 3 leading screw valve rods, 4 handwheels, 5 copper sheathings, 51 locking engagements, 52 arc sleeves, 53 lock tongue slots, 54 dead bolts, 55 keyholes, 56 springs, 57 spring driving levers, 58 screw threads in figure.
Embodiment
As Fig. 1, shown in Fig. 2 and Fig. 3, a kind of oil field locking leading screw gate valve, primarily of valve body 1, flap 2, leading screw valve rod 3 and handwheel 4 form, copper sheathing 5 bottom between leading screw valve rod 3 and handwheel 4 connects a locking engagement 51, copper sheathing 5 and locking engagement 51 are overall structure, the main body of locking engagement 51 is an arc sleeve 52, arc sleeve 52 two ends side inner walls arranges some lock tongue slots 53, lock tongue slot 53 outside that arc sleeve 52 one end side inwall is arranged and inside arrange keyhole 55 and dead bolt 54 respectively, dead bolt 54 inner surface is arranged the screw thread 58 matched with the screw thread of leading screw valve rod 3, dead bolt 54 rear end connects a spring 56, spring 56 the other end is fixed in lock tongue slot 53, keyhole 55 is connected with spring 56 by spring driving lever 57.
The working principle of the utility model gate valve is, by valve installation on oil field pipe, according to technological requirement, valve is made to be in Chang Kai or normally off, then use key through the keyhole 55 of locking engagement 51, the spring 56 of dead bolt 54 rear end connection is discharged by spring driving lever 57, spring 56 promotes dead bolt 54 and stretches out the lock tongue slot 53 entering arc sleeve 52 the other end from the lock tongue slot 53 of arc sleeve 52 one end, the screw thread 58 of dead bolt 54 internal surface is combined closely with the screw thread of leading screw valve rod 3, if there is lawless person to attempt to steal valve, key must be used to open, if locking engagement 51 is opened in lawless person's violence, just need the screw thread 58 destroying dead bolt 54 internal surface just can open locking engagement, but the screw thread of dead bolt 54 internal surface 58 is combined closely with the screw thread of leading screw valve rod 3, once the screw thread 58 of dead bolt 54 internal surface is damaged, the screw thread of leading screw valve rod 3 also can break down accordingly, such valve has been exactly the function opened and closed, still can keep its state that should be in, ensure that the normal operation in oil field.
Claims (1)
1. an oil field locking leading screw gate valve, primarily of valve body, flap, leading screw valve rod and handwheel composition, it is characterized in that the copper sheathing bottom between leading screw valve rod and handwheel connects a locking engagement, copper sheathing and locking engagement are overall structure, the main body of locking engagement is an arc sleeve, arc sleeve two ends side inner walls arranges some lock tongue slots, the lock tongue slot outside that arc sleeve one end side inwall is arranged and inside arrange keyhole and dead bolt respectively, dead bolt inner surface is arranged the screw thread matched with the screw thread of leading screw valve rod, dead bolt rear end connects a spring, the spring the other end is fixed in lock tongue slot, keyhole is connected with spring by spring driving lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420497490.6U CN204099634U (en) | 2014-08-25 | 2014-08-25 | Oil field locking leading screw gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420497490.6U CN204099634U (en) | 2014-08-25 | 2014-08-25 | Oil field locking leading screw gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204099634U true CN204099634U (en) | 2015-01-14 |
Family
ID=52268064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420497490.6U Expired - Fee Related CN204099634U (en) | 2014-08-25 | 2014-08-25 | Oil field locking leading screw gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204099634U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373049A (en) * | 2019-01-04 | 2019-02-22 | 王金霞 | A kind of oil well head Theft-proof collar clamp gate valve |
-
2014
- 2014-08-25 CN CN201420497490.6U patent/CN204099634U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373049A (en) * | 2019-01-04 | 2019-02-22 | 王金霞 | A kind of oil well head Theft-proof collar clamp gate valve |
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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: 20150114 Termination date: 20150825 |
|
| EXPY | Termination of patent right or utility model |