CN204673543U - Diesel injector sheath extractor - Google Patents
Diesel injector sheath extractor Download PDFInfo
- Publication number
- CN204673543U CN204673543U CN201520233783.8U CN201520233783U CN204673543U CN 204673543 U CN204673543 U CN 204673543U CN 201520233783 U CN201520233783 U CN 201520233783U CN 204673543 U CN204673543 U CN 204673543U
- Authority
- CN
- China
- Prior art keywords
- overcoat
- drawing pin
- return spring
- boss
- pin
- 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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- Earth Drilling (AREA)
Abstract
The utility model relates to a kind of diesel injector sheath extractor, its technical scheme is: drawing pin is a straight pin structure, the bottom of drawing pin is a boss, the top of described boss is provided with groove, the outside of drawing pin is helicitic texture, the top of drawing pin is threaded connection locking nut, the top of drawing pin connects handle, the bottom of drawing pin is provided with overcoat, described overcoat is a cylindrical structure, the bottom of overcoat is provided with multiple circular hole, ball is provided with outward in groove on drawing pin and the circular hole put, return spring is installed on the top of overcoat, one end of return spring acts on overcoat, the other end of return spring acts on locking nut, the lower end of overcoat is clamped on the boss of drawing pin, the beneficial effects of the utility model are: tool construction is simple, easy for installation, and taking out oil sprayer protective cover does not need welding and other aid, and it is time saving and energy saving to dismantle, and has both alleviated the labour intensity of workman, has turn improved work limitation.
Description
Technical field
The utility model relates to a kind of oil sprayer protective cover extraction device, particularly a kind of diesel injector sheath extractor.
Background technology
On-the-spot at wellbore construction, 190 diesel engines are one of major impetus of drilling well, due to a variety of causes, the oil sprayer protective cover of 190 diesel engines often needs to change because leaking or damaging, belong to interference between oil sprayer protective cover with cylinder cap to add seal with elastometic washer and coordinate, following problem is mainly there is: one is be convenient disassembly in unloading process, producer devises " V " shape technology groove at oil sprayer protective cover inner headed face, and be equipped with removal tool special, but there is a lot of defect in removal tool special design, be never widely applied for many years.Two is after oil sprayer protective cover damages, and user, generally at the upper plane-welding bolt of sheath, adopts the mode of drawing that sheath is pulled up.This kind of method not only wastes time and energy, and at wellbore construction scene by not allowing the restriction of arbitrarily employing electrogas welding, moreover be also easy to cause fire in diesel engine welding, cause very large difficulty to the maintenance of diesel engine.
Summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, and provide a kind of diesel injector sheath extractor, it is time saving and energy saving to dismantle, and has both alleviated the labour intensity of workman, has turn improved work limitation.
Its technical scheme is: comprise drawing pin, ball, overcoat, return spring, locking nut, handle, drawing pin is a straight pin structure, the bottom of drawing pin is a boss, the top of described boss is provided with groove, the outside of drawing pin is helicitic texture, the top of drawing pin is threaded connection locking nut, the top of drawing pin connects handle, the bottom of drawing pin is provided with overcoat, described overcoat is a cylindrical structure, the bottom of overcoat is provided with multiple circular hole, is provided with ball in the groove on drawing pin and the circular hole put outward, and return spring is installed on the top of overcoat.
One end of above-mentioned return spring acts on overcoat, and the other end of return spring acts on locking nut, and the lower end of overcoat is clamped on the boss of drawing pin.
Above-mentioned handle is a long rod structure, and the bottom of handle is connected with drawing pin by screw thread.
Wherein, the polished rod place socket hand hammer of handle, hand hammer moves along polished rod.
Above-mentioned ball 2 is evenly distributed in the circular hole on overcoat 3.
The beneficial effects of the utility model are: tool construction is simple, easy for installation, and taking out oil sprayer protective cover does not need welding and other aid, and it is time saving and energy saving to dismantle, and has both alleviated the labour intensity of workman, has turn improved work limitation.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is structural representations of drawing pin;
In upper figure: drawing pin 1, ball 2, overcoat 3, return spring 4, locking nut 5, hand hammer 6, handle 7, boss 1.1, groove 1.2.
Detailed description of the invention
1-2 by reference to the accompanying drawings, the utility model will be further described:
The utility model comprises drawing pin 1, ball 2, overcoat 3, return spring 4, locking nut 5, handle 7, drawing pin 1 is a straight pin structure, the bottom of drawing pin 1 is a boss 1.1, the top of described boss 1.1 is provided with groove 1.2, the outside of drawing pin 1 is helicitic texture, the top of drawing pin 1 is threaded connection locking nut 5, the top of drawing pin 1 connects handle 7, the bottom of drawing pin 1 is provided with overcoat 3, described overcoat 3 is a cylindrical structure, the bottom of overcoat 3 is provided with multiple circular hole, ball 2 is provided with in groove 1.2 on drawing pin 1 and the circular hole on overcoat 3, return spring 4 is installed on the top of overcoat 3, one end of return spring 4 acts on overcoat 3, the other end of return spring 4 acts on locking nut 5, the lower end of overcoat 3 is clamped on the boss of drawing pin 1.
Wherein, handle 7 is a long rod structure, and the bottom of handle 7 is connected with drawing pin 1 by screw thread, the polished rod place socket hand hammer 6 of handle 7, and hand hammer 6 moves along polished rod; Above-mentioned ball 2 is evenly distributed in the circular hole on overcoat 3.
Oil sprayer protective cover takes out process: when oil sprayer protective cover damage need be taken off, this instrument is inserted in the inner chamber of oil sprayer protective cover, and drawing pin is descending, compression retracteding position spring.When the groove part of drawing pin is corresponding with circular hole, ball 2 is uniformly distributed in the circular hole of overcoat, can not take out from the periphery of overcoat during free state, can only take out from the inside of overcoat, ball is under inner headed face effect, inwardly slide along small sircle hole, part ball cylindrical enters in the groove of drawing pin.When the periphery of ball and the periphery of overcoat concordant time, make this instrument continue insert in oil sprayer protective cover.When being inserted into ball and being corresponding with " V " shape technology groove of oil sprayer protective cover inner headed face, stop inserting, drawing pin is up under the effect of return spring, drawing pin groove inclined-plane forces ball outwards to slide along aperture, part enters in " V " shape technology groove, until the periphery of drawing pin withstands ball, the ball ejected so just couples together oil sprayer protective cover and extractor.Then one hold handle, another holds hand hammer, makes hand hammer clash into the handle part of handle, by the impact of hand hammer, oil sprayer protective cover is slowly taken out.
Claims (5)
1. a diesel injector sheath extractor, it is characterized in that: comprise drawing pin (1), ball (2), overcoat (3), return spring (4), locking nut (5), handle (7), drawing pin (1) is a straight pin structure, the bottom of drawing pin (1) is a boss (1.1), the top of described boss (1.1) is provided with groove (1.2), the outside of drawing pin (1) is helicitic texture, the top of drawing pin (1) is threaded connection locking nut (5), the top of drawing pin (1) connects handle (7), the bottom of drawing pin (1) is provided with overcoat (3), described overcoat (3) is a cylindrical structure, the bottom of overcoat (3) is provided with multiple circular hole, ball (2) is provided with in groove (1.2) on drawing pin (1) and the circular hole on overcoat (3), return spring (4) is installed on the top of overcoat (3).
2. diesel injector sheath extractor according to claim 1, it is characterized in that: one end of described return spring (4) acts on overcoat (3), the other end of return spring (4) acts on locking nut (5), and the lower end of overcoat (3) is clamped on the boss of drawing pin (1).
3. diesel injector sheath extractor according to claim 1, is characterized in that: described handle (7) is a long rod structure, and the bottom of handle (7) is connected with drawing pin (1) by screw thread.
4. diesel injector sheath extractor according to claim 3, is characterized in that: polished rod place socket hand hammer (6) of described handle (7), hand hammer (6) moves along polished rod.
5. diesel injector sheath extractor according to claim 1, is characterized in that: described ball (2) is evenly distributed in the circular hole on overcoat (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520233783.8U CN204673543U (en) | 2015-04-17 | 2015-04-17 | Diesel injector sheath extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520233783.8U CN204673543U (en) | 2015-04-17 | 2015-04-17 | Diesel injector sheath extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204673543U true CN204673543U (en) | 2015-09-30 |
Family
ID=54173265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520233783.8U Expired - Fee Related CN204673543U (en) | 2015-04-17 | 2015-04-17 | Diesel injector sheath extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204673543U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110549294A (en) * | 2019-08-30 | 2019-12-10 | 国网辽宁省电力有限公司葫芦岛供电公司 | Sliding hammer hammering and dismounting pin shaft device |
-
2015
- 2015-04-17 CN CN201520233783.8U patent/CN204673543U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110549294A (en) * | 2019-08-30 | 2019-12-10 | 国网辽宁省电力有限公司葫芦岛供电公司 | Sliding hammer hammering and dismounting pin shaft device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150930 Termination date: 20160417 |