CN201037390Y - Fast installed well head bolt nut - Google Patents
Fast installed well head bolt nut Download PDFInfo
- Publication number
- CN201037390Y CN201037390Y CNU2007200123774U CN200720012377U CN201037390Y CN 201037390 Y CN201037390 Y CN 201037390Y CN U2007200123774 U CNU2007200123774 U CN U2007200123774U CN 200720012377 U CN200720012377 U CN 200720012377U CN 201037390 Y CN201037390 Y CN 201037390Y
- Authority
- CN
- China
- Prior art keywords
- nut
- bolt
- springs
- well head
- fast
- 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
- 206010055018 Gingival cyst Diseases 0.000 claims description 6
- 210000004907 gland Anatomy 0.000 claims description 6
- 238000009434 installation Methods 0.000 abstract description 6
- 241000237858 Gastropoda Species 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model relates to a fast-installed well mouth bolt and nut applied in rushing emergency of oil and gas well in the oil field for fast installation of the well mouth. The utility model consists of a bolt, a nut casing, a sheet spring and a nut internal tooth slice, wherein, four dovetail grooves at the inner side of the nut casing are respectively provided with sheet springs, each of which is provided with one nut internal tooth slice at the inner side and supported against the sheet spring; a nut consisting of the nut casing, the sheet spring and the nut internal tooth slice is sleeved on the bolt. The utility model has novel structure, convenient operation and reliable working, which can install the control well mouth rapidly, prevent blowout accident, greatly reduce the labor intensity of operator and have convenient extension and application.
Description
Technical field:
The utility model relates to a kind of speedily carry out rescue work component of Fast Installation well head of oil field oil, gas well that are used for.
Background technology:
At present, the bolt and nut of the on-the-spot oil in oil field, use when the gas well mouth control device is installed remains common conventional type bolt and nut.This kind bolt and nut is made up of bolt and two nuts that match with it that two ends have pin thread, when well head is installed, need earlier bolt one end to be screwed on a nut, then bolt is penetrated in the screw of wellhead flange dish, again at the bolt other end another nut and fastening of screwing on.Because the used set bolt quantity of wellhead assembly is more, it is more loaded down with trivial details that the operating process of erection bolt nut just seems in ordinary production, in case running into well kick need promptly install when controlling well head, to tighten the 8-12 bolts at short notice, just be difficult to accomplish Fast Installation, often because of robbing dress not as good as gas blowout accident takes place.
The utility model content:
Thereby the purpose of this utility model is to provide a kind of Fast Installation control well head of can realizing to avoid the fast-assembling well head bolt and nut of gas blowout accident.
The utility model is to realize like this.This kind bolt and nut is made up of tooth sheet in bolt, nut overcoat, springs and the nut, respectively is provided with a slice springs in four dovetail grooves of nut overcoat inboard, and every springs inboard is provided with tooth sheet in the nut, pushes up mutually with springs; To be contained on the bolt by the nut sleeve that tooth sheet in nut overcoat, springs, the nut is formed.When robbing charge of oil gas well control well head, bolt is inserted in the oil gas well wellhead flange valve snail keyhole, again the direction of nut according to the button of falling the gingival cyst of mucous gland in the newborn is enclosed within on the bolt.Because the tooth sheet can be to the compression of external diameter direction in the nut on the nut, the nut internal diameter can enlarge, thus can be with nut directly with hand push to the position that need tighten with instrument, realization Fast Installation.Because the shape of the button of falling the gingival cyst of mucous gland in the newborn is a right-angled triangle, can not produces and promote the power that the tooth sheet expands outwardly in the nut, thereby must nut could be screwed down by left-handed nut during dismounting.
The utility model novel structure, easy to operate, reliable operation utilizes it Fast Installation to control well head, prevents gas blowout accident, and can alleviate labor intensity of operating personnel greatly, is suitable for and applies.
Description of drawings:
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment:
The utility model is provided by following examples, is illustrated below in conjunction with accompanying drawing.
As shown in the figure, the utility model is made up of tooth sheet 4 in bolt 1, nut overcoat 2, springs 3 and the nut, its structure, assembled relation are as follows: respectively be provided with a slice springs 3 in four dovetail grooves of nut overcoat 2 inboards, every springs 3 inboards are provided with tooth sheet 4 in the nut, push up mutually with springs 3; To be contained on the bolt 1 by the nut sleeve that tooth sheet 4 in nut overcoat 2, springs 3, the nut is formed.Wherein, bolt 1 is the screw rod that a upper end is six square nut shapes, and nut shape position, upper end is drilled with a driving hole, so that charge and discharge operations is manufactured with the button of falling the gingival cyst of mucous gland in the newborn on the body of rod.Hexagon is made in nut overcoat 2 outsides, and 4 dovetail grooves are made in inside.Tooth sheet 4 inboard screw threads also are the buttons of falling the gingival cyst of mucous gland in the newborn in the nut, match with the button of falling the gingival cyst of mucous gland in the newborn on the bolt body of rod.
Claims (3)
1. fast-assembling well head bolt and nut, form by tooth sheet (4) in bolt (1), nut overcoat (2), springs (3) and the nut, it is characterized in that: respectively be provided with a slice springs (3) in four dovetail grooves of nut overcoat (2) inboard, every springs (3) inboard is provided with tooth sheet (4) in the nut, pushes up mutually with springs; To be contained on the bolt (1) by the nut sleeve that tooth sheet (4) in nut overcoat (2), springs (3), the nut is formed.
2. fast-assembling well head bolt and nut according to claim 1 is characterized in that: bolt (1) is the screw rod that a upper end is six square nut shapes, and nut shape position, upper end is drilled with a driving hole, so that charge and discharge operations is manufactured with the button of falling the gingival cyst of mucous gland in the newborn on the body of rod.
3. fast-assembling well head bolt and nut according to claim 1 is characterized in that: hexagon is made in nut overcoat (2) outside, and 4 dovetail grooves are made in inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200123774U CN201037390Y (en) | 2007-05-29 | 2007-05-29 | Fast installed well head bolt nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200123774U CN201037390Y (en) | 2007-05-29 | 2007-05-29 | Fast installed well head bolt nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201037390Y true CN201037390Y (en) | 2008-03-19 |
Family
ID=39209906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200123774U Expired - Fee Related CN201037390Y (en) | 2007-05-29 | 2007-05-29 | Fast installed well head bolt nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201037390Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545915A (en) * | 2015-12-12 | 2016-05-04 | 重庆市长寿区农产品商贸流通协会 | Mounting method of ground locking screw for agricultural product showing fence |
-
2007
- 2007-05-29 CN CNU2007200123774U patent/CN201037390Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545915A (en) * | 2015-12-12 | 2016-05-04 | 重庆市长寿区农产品商贸流通协会 | Mounting method of ground locking screw for agricultural product showing fence |
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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 |