CN201275744Y - Tool for drawing copper cover in fuel oil injector hole - Google Patents
Tool for drawing copper cover in fuel oil injector hole Download PDFInfo
- Publication number
- CN201275744Y CN201275744Y CNU2008201044793U CN200820104479U CN201275744Y CN 201275744 Y CN201275744 Y CN 201275744Y CN U2008201044793 U CNU2008201044793 U CN U2008201044793U CN 200820104479 U CN200820104479 U CN 200820104479U CN 201275744 Y CN201275744 Y CN 201275744Y
- Authority
- CN
- China
- Prior art keywords
- copper sheathing
- screw tap
- oil injector
- injector hole
- instrument
- 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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- Fuel-Injection Apparatus (AREA)
Abstract
The utility model discloses a tool for pulling out a copper sleeve in a hole of an oil sprayer. The tool comprises a screw tap, the rigidity of the screw tap is higher than that of copper sleeve material, and one end of the screw tap is connected with one end of a connecting rod. The tool for pulling out the copper sleeve in the hole of the oil sprayer has the characteristics that: an inner hole of the copper sleeve is cut by the screw tap with the method of manual tapping to form a segment of thread, the screw tap is then pulled out and is meshed as well as mutually interacted with the copper sleeve by the thread, and then the copper sleeve can be conveniently and quickly pulled out without being damaged.
Description
Technical field
The utility model relates to a kind of, relates in particular to a kind of instrument that copper sheathing is extracted in the oil injector hole that is used for.
Background technology
In the prior art, combustion engine cylinder head oil injector hole copper sheathing pressure-mounting is not in place, and perhaps copper sheathing leaks during leak test, all will pull out copper sheathing and extract, and press-fits again.The method of taking out copper sheathing in the cylinder cap fuel injector hole at present has two kinds usually, a kind of is with spreading formula drawbench, principle is the stretching by the pull bar conical surface, spreading drawing sleeve, make the drawing sleeve be close to the inwall of copper sheathing, effect by frictional force makes the drawing sleeve clamp copper sheathing, by pulling out pull bar, copper sheathing is extracted then.Shortcoming with the method is, copper sheathing inwall smoother, and drawing sleeve and copper sheathing internal friction power are little, and folder is not tight easily, and instrument is complicated, heavy, operation inconvenience.Another kind method is to use mach way, processes step surface on copper sheathing, at the step surface that draws copper sheathing with other instrument, make that copper sheathing is stressed pulls out, the part of this method deficiency is to have damaged copper sheathing, and the flow process more complicated, lose time, operate constantly, production efficiency is low.
The utility model content
The purpose of this utility model is the defective of be difficult for taking out at oil injector hole copper sheathing in the prior art, provide a kind of can easily copper sheathing be taken out be used for the instrument that copper sheathing is extracted in the oil injector hole.
This is used for the instrument that copper sheathing is extracted in the oil injector hole and comprises that hardness is higher than the screw tap of described copper sheathing material, and described screw tap one end is connected with an end of extension bar.
Of the present utility modelly be used for the instrument that copper sheathing is extracted in the oil injector hole, cut the copper sheathing endoporus by screw tap in the mode of manual tapping, form one section screw thread, pull out screw tap then, by screw tap and copper sheathing with screw-threaded engagement stressed effect mutually, copper sheathing can be extracted quickly and easily, and copper sheathing can not be damaged.
Description of drawings
Fig. 1 is the structure chart that the utility model is used for the instrument that copper sheathing is extracted in the oil injector hole;
Mark the following drawings mark thereon in conjunction with the accompanying drawings:
The 1-combustion engine cylinder head; The 2-copper sheathing; The 3-screw tap; The 4-trip bolt; The 5-extension bar; The 6-handle.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is elaborated.
As shown in Figure 1, of the present utility modelly be used for the instrument that copper sheathing 2 is extracted in the oil injector hole and comprise: hardness is higher than the screw tap 3 of copper sheathing 2 materials, and the end of screw tap 3 is connected with the front end of extension bar 5, and the end of extension bar is fixedlyed connected with handle 6.
Screw tap 3 other ends comprise the front end guide frame, and the diameter of front end guide frame is less than the interior diameter of copper sheathing.The diameter of screw tap 3 rear end cutting tips is greater than the interior diameter of copper sheathing.Screw tap 3 and extension bar 5 are provided with the screwed hole of mutual contraposition, by trip bolt 4 fixedly screw tap and extension bar.
After this instrument installs, screw tap 3 is aimed at center, copper sheathing 2 hole, with hand turning handle 6, make screw tap 3 toward the cutting of copper sheathing 2 directions, form screw thread at copper sheathing 2 inwalls.During cutting-in to 20～30mm, the handle 6 that stops the rotation firmly is pulled outwardly handle then, and is stressed mutually by the engagement of screw thread on screw tap 3 and the copper sheathing 2, finally copper sheathing 2 extracted.
Use instrument of the present utility model, can take out the copper sheathing in the cylinder cap fuel injector hole quickly and easily, copper sheathing does not damage.And for the copper sheathing of different size, only need to change a screw tap model and get final product, applied widely, production efficiency is high.
It should be noted that at last: above embodiment only in order to the explanation the utility model and and the described technical scheme of unrestricted the utility model; Therefore, although this specification has been described in detail the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technical scheme and the improvement thereof of spirit and scope of the present utility model, and it all should be encompassed in the claim scope of the present utility model.
Claims (5)
1, a kind ofly is used for the instrument that copper sheathing is extracted in the oil injector hole, it is characterized in that comprise that hardness is higher than the screw tap of described copper sheathing material, described screw tap one end is connected with an end of extension bar.
2, according to claim 1ly be used for the instrument that copper sheathing is extracted in the oil injector hole, it is characterized in that described tap diameter is greater than the interior diameter of described copper sheathing.
3, according to claim 1ly be used for the instrument that copper sheathing is extracted in the oil injector hole, it is characterized in that the other end of described extension bar is fixedlyed connected with handle.
4, describedly be used for the instrument that copper sheathing is extracted in the oil injector hole according to claim 1 or 2 or 3, it is characterized in that the described screw tap other end comprises the front end guide frame, the diameter of described front end guide frame is less than the interior diameter of described copper sheathing.
5, describedly be used for the instrument that copper sheathing is extracted in the oil injector hole according to claim 1 or 2 or 3, it is characterized in that described screw tap and described extension bar are provided with the screwed hole of mutual contraposition, by fixing described screw tap of screw and described extension bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201044793U CN201275744Y (en) | 2008-08-12 | 2008-08-12 | Tool for drawing copper cover in fuel oil injector hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201044793U CN201275744Y (en) | 2008-08-12 | 2008-08-12 | Tool for drawing copper cover in fuel oil injector hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201275744Y true CN201275744Y (en) | 2009-07-22 |
Family
ID=40893322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201044793U Expired - Fee Related CN201275744Y (en) | 2008-08-12 | 2008-08-12 | Tool for drawing copper cover in fuel oil injector hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201275744Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101966700B (en) * | 2009-07-28 | 2012-05-30 | 广西玉柴机器股份有限公司 | Tool and method for pressing injector copper sleeve of cylinder head |
| CN105818081A (en) * | 2016-05-17 | 2016-08-03 | 丁雅 | Multipurpose internal pipe wrench |
| CN109604746A (en) * | 2019-01-31 | 2019-04-12 | 广西玉柴机器股份有限公司 | A kind of tap wrench and preparation method thereof of plunger tip bar |
-
2008
- 2008-08-12 CN CNU2008201044793U patent/CN201275744Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101966700B (en) * | 2009-07-28 | 2012-05-30 | 广西玉柴机器股份有限公司 | Tool and method for pressing injector copper sleeve of cylinder head |
| CN105818081A (en) * | 2016-05-17 | 2016-08-03 | 丁雅 | Multipurpose internal pipe wrench |
| CN109604746A (en) * | 2019-01-31 | 2019-04-12 | 广西玉柴机器股份有限公司 | A kind of tap wrench and preparation method thereof of plunger tip bar |
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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: 20090722 Termination date: 20130812 |