CN204720779U - For the tapping screw of spark plug cap - Google Patents
For the tapping screw of spark plug cap Download PDFInfo
- Publication number
- CN204720779U CN204720779U CN201520336304.5U CN201520336304U CN204720779U CN 204720779 U CN204720779 U CN 204720779U CN 201520336304 U CN201520336304 U CN 201520336304U CN 204720779 U CN204720779 U CN 204720779U
- Authority
- CN
- China
- Prior art keywords
- screw
- tapping screw
- spark plug
- head boss
- plug cap
- 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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- Spark Plugs (AREA)
Abstract
The utility model discloses a kind of tapping screw for spark plug cap, comprise shank of screw (1) and head boss (2), shank of screw (1) is provided with screw thread, the upper end of described shank of screw (1) is connected as a single entity by the bottom surface of large footpath section (3) with head boss (2), head boss (2) is regular polygon, location notch (4) is had, on the axial line being centrally located at described shank of screw (1) of this location notch (4) at the end face of head boss (2).The utility model relatively rotates after effectively preventing tapping screw to be pressed into spark plug cap body, while facilitating wire harness to connect, electric conductivity can be guaranteed, there is the features such as reasonable in design, structure simple, be easy to processing, production cost is low, all applicable on various types of conductive cap.
Description
Technical field
The utility model relates to a kind of engine components, particularly a kind of tapping screw for spark plug cap.
Background technology
Spark plug cap is the vitals on universal machine, for connecting high-voltage line and spark plug, and its quality, the directly startability of the logical machine of impact.Traditional spark plug cap is by body and be arranged on the compositions such as intrinsic conductive cap, resistance, spring, reed, tapping screw, and the tapping screw used is standard component, adopts press mode to be fixed in body.Head boss due to tapping screw is circular, and easily rotate at spark plug cap body contents, steadiness and the reliability of tapping screw are poor, can affect the connection of wire harness, thus reduce efficiency of assembling when assembling.
Utility model content
Because the above-mentioned defect of prior art, technical problem to be solved in the utility model is to provide a kind of tapping screw for spark plug cap that effectively can prevent rotating.
Technical solutions of the utility model are as follows: a kind of tapping screw for spark plug cap, comprise shank of screw (1) and head boss (2), shank of screw (1) is provided with screw thread, it is characterized in that: the upper end of described shank of screw (1) is connected as a single entity by the bottom surface of large footpath section (3) with head boss (2), head boss (2) is regular polygon, location notch (4) is had, on the axial line being centrally located at described shank of screw (1) of this location notch (4) at the end face of head boss (2).
Adopt above technical scheme, by the section transition of large footpath between shank of screw and head boss, structural strength is good, fracture not easily occurs or damages.Head boss is positive shape changeable, embed after in spark plug cap body, tapping screw can not rotate relative to spark plug cap body, the steadiness that such tapping screw is installed and good reliability, being conducive to wire harness when assembling is connected on tapping screw, ensure that efficiency of assembling.Location notch on head boss is used for resistance location, and enable the end of resistance enter in location notch, the steadiness that such resistance is installed is good.
As preferably, described head boss (2) is regular hexagon, has oblique angle between all sides of this head boss (2) and end face.
As preferably, described location notch (4) is up big and down small taper shape.
In order to improve conductive effect, described tapping screw is made of copper.
In order to guarantee conductive effect while reducing costs, described tapping screw is fabricated from iron, and has conductive layer at the Surface coating of tapping screw.
Beneficial effect: the utility model relatively rotates after effectively preventing tapping screw to be pressed into spark plug cap body, while facilitating wire harness to connect, electric conductivity can be guaranteed, there is the features such as reasonable in design, structure simple, be easy to processing, production cost is low, all applicable on various types of conductive cap.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
As shown in Figure 1 and Figure 2, the tapping screw of spark plug cap can be made of copper; Also can be fabricated from iron, have conductive layer at the Surface coating of tapping screw.Tapping screw comprises shank of screw 1, large footpath section 3 and head boss 2 three part.Wherein, shank of screw 1 is provided with screw thread, the lower end of this shank of screw 1 is prong structure, and the upper end of shank of screw 1 is connected as a single entity by the bottom surface of large footpath section 3 with head boss 2, and the axial line of shank of screw 1, greatly footpath section 3 and head boss 2 three point-blank.Head boss 2 is regular polygon, and in the present embodiment, head boss 2 is preferably regular hexagon, has oblique angle between all sides of this head boss 2 and end face.Have location notch 4 at the end face of head boss 2, this location notch 4 is up big and down small taper shape, on the axial line being centrally located at shank of screw 1 of location notch 4.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without the need to creative work.Therefore, all technical staff in the art according to design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should by the determined protection range of claims.
Claims (5)
1. the tapping screw for spark plug cap, comprise shank of screw (1) and head boss (2), shank of screw (1) is provided with screw thread, it is characterized in that: the upper end of described shank of screw (1) is connected as a single entity by the bottom surface of large footpath section (3) with head boss (2), head boss (2) is regular polygon, location notch (4) is had, on the axial line being centrally located at described shank of screw (1) of this location notch (4) at the end face of head boss (2).
2., as claimed in claim 1 for the tapping screw of spark plug cap, it is characterized in that: described head boss (2) is regular hexagon, has oblique angle between all sides of this head boss (2) and end face.
3., as claimed in claim 1 or 2 for the tapping screw of spark plug cap, it is characterized in that: described location notch (4) is up big and down small taper shape.
4., as claimed in claim 3 for the tapping screw of spark plug cap, it is characterized in that: described tapping screw is made of copper.
5., as claimed in claim 3 for the tapping screw of spark plug cap, it is characterized in that: described tapping screw is fabricated from iron, have conductive layer at the Surface coating of tapping screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520336304.5U CN204720779U (en) | 2015-05-22 | 2015-05-22 | For the tapping screw of spark plug cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520336304.5U CN204720779U (en) | 2015-05-22 | 2015-05-22 | For the tapping screw of spark plug cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204720779U true CN204720779U (en) | 2015-10-21 |
Family
ID=54319745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520336304.5U Expired - Fee Related CN204720779U (en) | 2015-05-22 | 2015-05-22 | For the tapping screw of spark plug cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204720779U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993378A (en) * | 2015-05-22 | 2015-10-21 | 重庆从仁机电有限公司 | Self-tapping screw of spark plug cap |
-
2015
- 2015-05-22 CN CN201520336304.5U patent/CN204720779U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993378A (en) * | 2015-05-22 | 2015-10-21 | 重庆从仁机电有限公司 | Self-tapping screw of spark plug cap |
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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 |
Granted publication date: 20151021 Termination date: 20210522 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |