CN200982172Y - Well mouth bolt anti-theft device - Google Patents
Well mouth bolt anti-theft device Download PDFInfo
- Publication number
- CN200982172Y CN200982172Y CN 200620030286 CN200620030286U CN200982172Y CN 200982172 Y CN200982172 Y CN 200982172Y CN 200620030286 CN200620030286 CN 200620030286 CN 200620030286 U CN200620030286 U CN 200620030286U CN 200982172 Y CN200982172 Y CN 200982172Y
- Authority
- CN
- China
- Prior art keywords
- well
- connecting link
- steel bushing
- nuts
- head
- 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
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- Burglar Alarm Systems (AREA)
Abstract
A well-head screw burglar alarm belongs to the well-head theft protection installation of the oil well and the water well in the oilfield, and overcomes the shortcomings of the prior art. The screw burglar alarm is connected and fixed with an upper steel jacket, a lower steel jacket, a connecting link which is arranged with grooves and a hard metal steel bar, wherein the upper and the lower steel jacket which cover two nuts are connected and fixed through the connecting link which is arranged with grooves, the hard metal steel bar is arranged in the grooves of the connecting link. The burglar alarm has the advantages that the steel jackets covering the nuts are connected with the connecting link without welding the nuts tightly and devastatingly and thereby can save the materials, when disassembling the well head, the connecting link is cut off by the gas cutting and thereby can realize the normal dissembling without cutting the screw, the well head will not lose its hermeticity due to the cutting of the connecting link, and the cut can be welded again when in reuse and thereby can save the cost and ensure safe operation and guard against theft.
Description
One, technical field: the utility model relates to the wellhead equipment anti-theft device of oilfield, well, especially well head bolt alarm.
Two, background technology: in oil field development was produced, the wellhead equipment of producing well, water injection well generally all was to adopt clip or flange to connect, and clip or flange connect both simple and convenient, solid and reliable again, so be used widely in each wellhead equipment junction.Oil well, well all are in the open air in the oil field development at present, and the most of the time all is to be in unattended duty.The lawless person uses general tool just can dismantle clip or flange bolt, stolen, steal gas, the theft wellhead equipment, wellhead equipment is stolen, not only can cause direct economic loss, but also can cause bigger indirect loss, oil, the well theft protection for devices is the most important thing of field produces field work, find to have five pieces of patent documentations by retrieval about the antitheft Theft-proof collar clamp of well head, the patent No. is 94242792.0,95220552.1,022142797.7,03253556.2,200420040610.6, these products can only prevent that the lawless person from laying down bolt with general tool, substantially all be the method that adopts special shaped screw bolt and use special tool, in case special tool runs off or will to have large quantities of well heads stolen by imitated, special tool loses antitheft meaning.Add on the ear handle of clip that weldering is common fixedly protects watt sawing that also can't prevent the hand hacksaw; On the ear handle of clip, leave the clip of internal thread, in case internal thread damage and will cause scrapping of whole pair of clip, so above theft preventing method not by the oil field practicality.The theft preventing method that generally adopt present production line is that the stud of mounted clip or flange is dead with the destructive weldering of electric welding, prevent removing nut, add weldering protects watt in the bolt outside, prevent the hacksaw sawing, when oil well need be dismantled well head, to protect watt and bolt cuts off with gas cutting, a large amount of bolts and part clip have not only been scrapped, and cut off bolt moment clip or flange will lose its sealing suddenly, crude oil or natural gas may overflow rapidly, site operation personnel's safety can't ensure that this theft preventing method has been prevented others, has fettered oneself especially.Adding fixedly protecting of weldering watt also is to prevent the hacksaw sawing.Therefore, existing theft preventing method can not effectively solve antitheft problem.
Three, summary of the invention: the purpose of this utility model provides and can reuse safely, saves the well head bolt alarm of accessory, the purpose of this utility model is to realize like this, it is to be formed by connecting by last steel bushing, following steel bushing, the connecting rod that has groove and hard tool steel bar, last steel bushing, following steel bushing cover two nuts, and last steel bushing, following steel bushing firmly connect with the connecting rod that has groove, and the hard tool steel bar is embedded in the groove of connecting rod.
Benefit of the present utility model is: steel bushing covers nut, steel bushing need only be connected with connecting rod, need not weld dead bolt devastatingly, saved material, with gas cutting connecting rod is cut off during the dismounting well head, need not cut off bolt and can normally dismantle, well head can not lose sealing because of cutting off connecting rod when getting angry, the place of cutting off welding need only be got final product when reusing again, not only save cost but also production safety; Theftproof is good.
Four, description of drawings: Fig. 1 is the structural representation of well head bolt alarm, among the figure 1, go up steel bushing 2, steel bushing 3, the connecting rod 4 that has groove, hard tool steel bar down
Fig. 2 is the lateral view of well head bolt alarm, among the figure 1, go up steel bushing 3, the connecting rod 4 that has groove, hard tool steel bar
Five, the specific embodiment: in Fig. 1, last steel bushing 1, down steel bushing 2 covers two bolts, and go up steel bushing 1, the steel bushing 2 usefulness connecting rod 3 that has a groove firmly connects down, hard tool steel bar 4 is embedded in the groove of the connecting rod 3 that has groove.
Claims (1)
1, well head bolt alarm, it is to be formed by connecting by last steel bushing (1), following steel bushing (2), the connecting rod (3) that has groove and hard tool steel bar (4), it is characterized in that: upward steel bushing (1), following steel bushing (2) cover two nuts, and last steel bushing (1), steel bushing (2) the firmly connection of connecting rod (3) that has groove down, hard tool steel bar (4) is embedded in the groove of the connecting rod (3) that has groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620030286 CN200982172Y (en) | 2006-03-24 | 2006-03-24 | Well mouth bolt anti-theft device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620030286 CN200982172Y (en) | 2006-03-24 | 2006-03-24 | Well mouth bolt anti-theft device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200982172Y true CN200982172Y (en) | 2007-11-28 |
Family
ID=38909332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620030286 Expired - Fee Related CN200982172Y (en) | 2006-03-24 | 2006-03-24 | Well mouth bolt anti-theft device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200982172Y (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 |
-
2006
- 2006-03-24 CN CN 200620030286 patent/CN200982172Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |