CN2581686Y - Locking device with two rows of steel balls - Google Patents
Locking device with two rows of steel balls Download PDFInfo
- Publication number
- CN2581686Y CN2581686Y CN 02261451 CN02261451U CN2581686Y CN 2581686 Y CN2581686 Y CN 2581686Y CN 02261451 CN02261451 CN 02261451 CN 02261451 U CN02261451 U CN 02261451U CN 2581686 Y CN2581686 Y CN 2581686Y
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- bull stick
- sleeve
- locking device
- steel ball
- 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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Abstract
The utility model relates to a locking device for double rows of steel balls, which comprises a rotary rod of a sliding sleeve and a nut outer sleeve. The utility model is characterized in that the lower part of the outer side of the nut outer sleeve is provided with a casing provided with an extended part; the outer side of the casing is provided with an inner concave ring sheathed with an outer spring, and an outer sliding ring is arranged under the outer spring. The rotary rod of a sliding sleeve on the lower part of the inner side of the nut outer sleeve is sheathed with an inner spring; the lower part of the rotary rod of a sliding sleeve is provided with two grooves; an inner sleeve is arranged between the rotary rod of a sliding sleeve on the lower part of the inner side of the nut outer sleeve and the outer sliding ring; positions which are opposite to the two grooves of the rotary rod of a sliding sleeve on the inner sleeve are provided with two through slots, wherein, the interiors of which are provided with steel balls. The utility model has the advantage of convenience.
Description
Technical field
The utility model relates to a kind of locking device, particularly a kind of double steel ball locking device.
Background technology
In the oil well delamination water distribution, existing layering water distribution is the deep layer of water nozzle valve from oil well will be picked up, test, the replacing of water nozzle valve then, but owing to need repeatedly test, therefore carry out the sharp increase that pulling will cause workload continually, waste time and energy, for overcoming above-mentioned shortcoming, the existing water nozzle valve that can carry out water yield adjusting under rotating shaft is controlled is the problem that needs solution but how to locate in the deep layer oil well.
Summary of the invention
The purpose of this utility model is to solve in the prior art in the oil well delamination water distribution, existing layering water distribution is the deep layer of water nozzle valve from oil well will be picked up, test, the replacing of water nozzle valve then, but owing to need repeatedly test, therefore carry out the sharp increase that pulling will cause workload continually, waste time and energy, for overcoming above-mentioned shortcoming, have now and can under rotating shaft control, carry out the water nozzle valve that the water yield is regulated, and the problem that water nozzle valve can't be located in the oil well deep layer.Technical solutions of the utility model design double steel ball locking device, comprise sliding sleeve bull stick, nut overcoat, it is characterized in that: the outer lower portion of nut overcoat has a housing that extends, hull outside has interior scrobicular ring, be with outer spring on the interior scrobicular ring, outer slip ring is arranged under the outer spring, be with inner spring on the sliding sleeve bull stick of the lower inside of nut overcoat, two grooves are arranged at the bottom of sliding sleeve bull stick, between the sliding sleeve bull stick of the lower inside of nut overcoat and the outer slip ring interior cover is arranged, in two groove opposite positions putting with the sliding sleeve bull stick have two to be used to groove, being used to has steel ball in the groove.The utility model has the advantages that can be easily at oil.
Description of drawings
Accompanying drawing is a structural representation of the present utility model,
Comprise sliding sleeve bull stick 1, nut overcoat 2 among the specific embodiment figure, it is characterized in that: the outer lower portion of nut overcoat 2 has a housing 3 that extends, there is interior scrobicular ring 4 in housing 3 outsides, be with outer spring 5 on the interior scrobicular ring 4, outer spring has outer slip ring 6 for 5 times, be with inner spring 7 on the sliding sleeve bull stick 1 of the lower inside of nut overcoat 2, two grooves 8 are arranged at the bottom of sliding sleeve bull stick 1, cover 9 in having between the sliding sleeve bull stick 1 of the lower inside of nut overcoat 2 and the outer slip ring 6, two groove 8 opposite positions with sliding sleeve bull stick 1 on the interior cover 9 have two to be used to groove 10, and being used to has steel ball 11 in the groove 10.
Double steel ball locking device is put a special-purpose dispenser in the water nozzle hole of the eccentric injection mandrel to the water injection well during use, the omoplate that outer slip ring 6 is met the water nozzle holes by on push away, the steel ball of being used in the groove 10 11 on upper strata is got away, interior cover 9 inner springs 7 that are with on the sliding sleeve bull stick 1 press down mobile, the part that two grooves of sliding sleeve bull stick 1 are 8 will be withstood down the steel ball of being used in the groove 10 11, because whole double steel ball locking device is dropped in the water nozzle hole of eccentric injection mandrel, the steel ball of being used to down in the groove 10 11 is pressed the double steel ball locking device in back to be positioned in the water nozzle hole, top sliding sleeve bull stick 1 is rotated by top flexible axle control, drive the water nozzle valve rotating shaft in the inner hexagonal hole 12 that the bottom of sliding sleeve bull stick 1 caves in again, reach the effect that the water yield is regulated.When carrying double steel ball locking device on the needs, with carrying on the special-purpose dispenser, move on the sliding sleeve bull stick 1, be used to the pressure of part that steel balls 11 in the groove 10 have lost 8 of two grooves of sliding sleeve bull stick 1 down, carry on the double steel ball locking device, outer slip ring 6 is pressed down by outer spring 5, and the steel ball of being used in the groove 10 11 on upper strata bounces back, and whole double steel ball locking device is suggested the water nozzle hole and rises to outside the water injection well.
Claims (1)
- Double steel ball locking device, comprise the sliding sleeve bull stick, the nut overcoat, it is characterized in that: the outer lower portion of nut overcoat has a housing that extends, hull outside has interior scrobicular ring, be with outer spring on the interior scrobicular ring, outer slip ring is arranged under the outer spring, be with inner spring on the sliding sleeve bull stick of the lower inside of nut overcoat, two grooves are arranged at the bottom of sliding sleeve bull stick, the inner hexagonal hole that caves in is arranged at the bottom of sliding sleeve bull stick, between the sliding sleeve bull stick of the lower inside of nut overcoat and the outer slip ring interior cover is arranged, in two groove opposite positions putting with the sliding sleeve bull stick have two to be used to groove, being used to has steel ball in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02261451 CN2581686Y (en) | 2002-11-11 | 2002-11-11 | Locking device with two rows of steel balls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02261451 CN2581686Y (en) | 2002-11-11 | 2002-11-11 | Locking device with two rows of steel balls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2581686Y true CN2581686Y (en) | 2003-10-22 |
Family
ID=33728239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02261451 Expired - Fee Related CN2581686Y (en) | 2002-11-11 | 2002-11-11 | Locking device with two rows of steel balls |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2581686Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101959613B (en) * | 2008-02-26 | 2013-06-12 | 伊利诺斯工具制品有限公司 | Ball lock mounting arrangement |
| CN103161423A (en) * | 2011-12-09 | 2013-06-19 | 韦特柯格雷公司 | Lock assembly for hydraulic fracing valve |
-
2002
- 2002-11-11 CN CN 02261451 patent/CN2581686Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101959613B (en) * | 2008-02-26 | 2013-06-12 | 伊利诺斯工具制品有限公司 | Ball lock mounting arrangement |
| CN103161423A (en) * | 2011-12-09 | 2013-06-19 | 韦特柯格雷公司 | Lock assembly for hydraulic fracing valve |
| CN103161423B (en) * | 2011-12-09 | 2017-08-15 | 韦特柯格雷公司 | Locked component for hydraulic pressure rupture 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 |