CN201778907U - Cylinder cover plug adopting conical surface sealing structure - Google Patents
Cylinder cover plug adopting conical surface sealing structure Download PDFInfo
- Publication number
- CN201778907U CN201778907U CN2009200947400U CN200920094740U CN201778907U CN 201778907 U CN201778907 U CN 201778907U CN 2009200947400 U CN2009200947400 U CN 2009200947400U CN 200920094740 U CN200920094740 U CN 200920094740U CN 201778907 U CN201778907 U CN 201778907U
- Authority
- CN
- China
- Prior art keywords
- conical surface
- cylinder head
- seal structure
- cylinder cover
- stop
- 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 - Lifetime
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Abstract
A cylinder cover plug adopting a conical surface sealing structure is characterized in that the plug is provided with thread, and the matching surface of the upper end of the plug with a cylinder cover is made into a conical surface. The cylinder cover plug has the advantages of installation space economization, ease in assembly, improvement of sealing reliability, fine corrosion resistance, low cost and the like.
Description
Technical field
The utility model belongs to the technical field that engine cylinder cap stops up, and particularly adopts the cylinder head of conical surface seal structure to stop up.
Background technique
Cylinder head is as the critical component of motor, and its quality of product has very important influence for the performance of motor.The casting structure complexity, the dimension precision requirement height always is one of representative of intricate casting.Along with the raising of engine performance requirement, for the also raising thereupon of quality requirement of cylinder cap casting.Still the structure of cylinder head is not complicated more, and is more and more higher for the dimensional accuracy and the otherwise performance requirement of foundry goods yet.
The sand removal hole of water jacket is all left on the cylinder head surface, and the sealing in sand removal hole is also extremely important.Traditional encapsulating method has two kinds, and a kind of is after fine finishing is carried out in the sand removal hole, to be pressed into the bowl-type patch.Another kind is to adopt the tapered thread plug screw.Bowl Plug is installed more complicated, and leaks easily after being corroded.And tapered thread plug screw installation process is difficult to control, easily cylinder cap is caused damage.
Summary of the invention
The utility model purpose provides a kind of cylinder head of conical surface seal structure that adopts and stops up.
The technical solution of the utility model is achieved in that
Adopt the cylinder head of conical surface seal structure to stop up, it is characterized by: stops up threadedly, stop up the fitting surface of upper end and cylinder cap and make the conical surface.
The utility model is saved installing space, is easy to assembling, improves sealing reliability, and characteristics such as it is good to have corrosion resistance, and cost is low.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the utility model and cylinder head mounting structure schematic representation.
Specific embodiments
Describe specific embodiments of the present utility model in detail below in conjunction with accompanying drawing.
Adopt the cylinder head of conical surface seal structure to stop up, it is characterized by: stop up 1 threadedly, stop up the fitting surface of 1 upper end and cylinder cap 2 and make the conical surface 3.
Adopt the cylinder head of conical surface seal structure to stop up, it is characterized by: the inner hexagonal hole 5 of making standard at the obstruction top.
Adopt the cylinder head of conical surface seal structure to stop up, it is characterized by: obstruction 1 is tightened the back with cylinder cap 2 and is contacted for line.
Adopt the cylinder head of conical surface seal structure to stop up, it is characterized by: sealing cone and screw thread transition position reserve one section diameter slightly little lead footpath 4.
Embodiment:
The utility model is a threaded obstruction, stops up the upper end and makes the conical surface with the fitting surface of cylinder cap, is used for sealing; Make the inner hexagonal hole of standard simultaneously at the obstruction top, be used to tighten; When using this obstruction, direct thread mill drilling gets final product on the cylinder cap; Obstruction cooperates as shown in Figure 2 with cylinder cap, and chamfer is 45 ° on the tapped hole, and stopping up the conical surface is 60 °, and tightening the latter two is the line contact, with the contact force formation sealing of minimum.The conical surface is in conjunction with having neutrality, and what be convenient to stop up screws installation smoothly.And be more convenient installation, sealing cone and screw thread transition position reserve one section diameter slightly little lead footpath 4.
Claims (4)
1. adopt the cylinder head of conical surface seal structure to stop up, it is characterized by: it is threaded to stop up (1), stops up (1) upper end and makes the conical surface (3) with the fitting surface of cylinder cap (2).
2. the cylinder head of employing conical surface seal structure according to claim 1 is stopped up, and it is characterized by: the described inner hexagonal hole (5) of making standard at obstruction (1) top.
3. the cylinder head of employing conical surface seal structure according to claim 1 is stopped up, and it is characterized by: described obstruction (1) is tightened the back with cylinder cap (2) and is contacted for line.
4. the cylinder head of employing conical surface seal structure according to claim 1 is stopped up, and it is characterized by: described sealing cone (3) and screw thread transition position reserve one section diameter slightly little lead directly (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200947400U CN201778907U (en) | 2009-11-13 | 2009-11-13 | Cylinder cover plug adopting conical surface sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200947400U CN201778907U (en) | 2009-11-13 | 2009-11-13 | Cylinder cover plug adopting conical surface sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201778907U true CN201778907U (en) | 2011-03-30 |
Family
ID=43792120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200947400U Expired - Lifetime CN201778907U (en) | 2009-11-13 | 2009-11-13 | Cylinder cover plug adopting conical surface sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201778907U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989844A (en) * | 2019-05-06 | 2019-07-09 | 广西玉柴机器股份有限公司 | A kind of collect with bubble blocks with the cylinder cap of leadout hole |
-
2009
- 2009-11-13 CN CN2009200947400U patent/CN201778907U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989844A (en) * | 2019-05-06 | 2019-07-09 | 广西玉柴机器股份有限公司 | A kind of collect with bubble blocks with the cylinder cap of leadout hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110330 |
|
| CX01 | Expiry of patent term |