CN202628068U - Underground spring spear of free point indicator - Google Patents
Underground spring spear of free point indicator Download PDFInfo
- Publication number
- CN202628068U CN202628068U CN 201220066376 CN201220066376U CN202628068U CN 202628068 U CN202628068 U CN 202628068U CN 201220066376 CN201220066376 CN 201220066376 CN 201220066376 U CN201220066376 U CN 201220066376U CN 202628068 U CN202628068 U CN 202628068U
- Authority
- CN
- China
- Prior art keywords
- body resistance
- strengthening tablets
- hole
- spring
- spear
- 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
Landscapes
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
An underground spring spear of a free point indicator, which is simple in structure and quick for demounting, is characterized in that a male joint, a compression spring, a strengthening piece fixing seat and a female joint are connected sequentially on a mandrel; and fastening screws penetrate through holes at two ends of an elastic strengthening piece to be screwed down the strengthening piece fixing seat and the female joint.
Description
Affiliated technical field
The utility model is applied in the oil field downhole instrument and connects and set upright, and is a kind of can dismounting quick, safety, the reliable sticking point instrument down-hole spring lance that connects.
Background technology
At present, the sticking point instrument down-hole spring lance of oil field use is made up of steel male joint, mandrel, compression spring, body resistance-strengthening tablets holder, fixing pin, elasticity body resistance-strengthening tablets and steel female joint.The steel male joint is to aboveground connection instrument, and the steel female joint connects instrument to the down-hole.Whole instrument discharges instrument through the center hydrophthalmia of downhole tool to the down-hole, and the elasticity body resistance-strengthening tablets of sticking point instrument down-hole spring lance is supported on the hydrophthalmia inwall of downhole tool, makes the center of downhole probe at the downhole tool hydrophthalmia.But; Because sticking point instrument down-hole spring lance is gone into the well frequently, be easy to cause the wearing and tearing of elasticity body resistance-strengthening tablets, need frequent dismounting and change; And the fixing pin of dismounting elasticity body resistance-strengthening tablets very difficulty with dally over one's work the time, bring great difficulty and trouble for oil field field operation personnel.
Summary of the invention
In order to overcome existing sticking point instrument down-hole spring lance dismounting and change elasticity body resistance-strengthening tablets problem such as waste time and energy, the utility model provides a kind of sticking point instrument down-hole spring lance, and is convenient and swift, economical and practical during the spring lance dismounting and change elasticity body resistance-strengthening tablets of this sticking point instrument down-hole.
The utility model solves the technical scheme that its technical problem adopted: on the spring lance mandrel of sticking point instrument down-hole; Male joint, compression spring, body resistance-strengthening tablets holder and female joint are linked in sequence, and the hole that hold-down screw passes elasticity body resistance-strengthening tablets two ends is tightened in respectively in body resistance-strengthening tablets holder and the female joint.Only need unclamp during dismounting elasticity body resistance-strengthening tablets and back out hold-down screw, be easy to take off the elasticity body resistance-strengthening tablets, so just reduce working strength, improve operating efficiency with screwdriver.
The beneficial effect of the utility model is that this fixed form is simple in structure, does not change the connection of sticking point instrument down-hole spring lance and sets upright performance, and is convenient and swift, economical and practical when making this instrument dismounting and change elasticity body resistance-strengthening tablets.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the sectional structure chart of the utility model.
1. male joints among the figure, 2. mandrel 3. compresses spring, 4. body resistance-strengthening tablets holder, 5. hold-down screw, 6. elasticity body resistance-strengthening tablets, 7. female joint.
The specific embodiment
In Fig. 1; Mandrel (2) left end is through the male joint that is threaded (1); Mandrel (2) right-hand member passes compression spring (3) and body resistance-strengthening tablets holder (4); Right-hand member is through the female joint that is threaded (7), and the hole that hold-down screw (5) passes elasticity body resistance-strengthening tablets (6) two ends is tightened in respectively in body resistance-strengthening tablets holder (4) and the female joint (7).Only need unclamp during dismounting elasticity body resistance-strengthening tablets and back out hold-down screw (5), be easy to take off elasticity body resistance-strengthening tablets (6), so just reduce working strength, improve operating efficiency with screwdriver.
Claims (1)
1. sticking point instrument down-hole spring lance; It is characterized in that: the mandrel left end is through the male joint that is threaded; The mandrel right-hand member passes compression spring and body resistance-strengthening tablets holder; Right-hand member is through the female joint that is threaded, and the hole that hold-down screw passes elasticity body resistance-strengthening tablets two ends is tightened in respectively in body resistance-strengthening tablets holder and the female joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220066376 CN202628068U (en) | 2012-02-23 | 2012-02-23 | Underground spring spear of free point indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220066376 CN202628068U (en) | 2012-02-23 | 2012-02-23 | Underground spring spear of free point indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202628068U true CN202628068U (en) | 2012-12-26 |
Family
ID=47381276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220066376 Expired - Fee Related CN202628068U (en) | 2012-02-23 | 2012-02-23 | Underground spring spear of free point indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202628068U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033144A (en) * | 2014-06-23 | 2014-09-10 | 北京奥瑞安能源技术开发有限公司 | Lifting head device |
| CN116006105A (en) * | 2021-10-22 | 2023-04-25 | 中国石油天然气集团有限公司 | Roller centralizing spring spear |
-
2012
- 2012-02-23 CN CN 201220066376 patent/CN202628068U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033144A (en) * | 2014-06-23 | 2014-09-10 | 北京奥瑞安能源技术开发有限公司 | Lifting head device |
| CN116006105A (en) * | 2021-10-22 | 2023-04-25 | 中国石油天然气集团有限公司 | Roller centralizing spring spear |
| CN116006105B (en) * | 2021-10-22 | 2024-04-26 | 中国石油天然气集团有限公司 | Roller centralizing spring spear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20140223 |