CN201739023U - Spark plug sealing structure - Google Patents
Spark plug sealing structure Download PDFInfo
- Publication number
- CN201739023U CN201739023U CN2010202585731U CN201020258573U CN201739023U CN 201739023 U CN201739023 U CN 201739023U CN 2010202585731 U CN2010202585731 U CN 2010202585731U CN 201020258573 U CN201020258573 U CN 201020258573U CN 201739023 U CN201739023 U CN 201739023U
- Authority
- CN
- China
- Prior art keywords
- spark plug
- spacer
- water jacket
- valve chamber
- cover plate
- 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
Links
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- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
The utility model provides a spark plug seal structure, including the spacer sleeve that separates high-tension line and valve door chamber and spark plug and water jacket, be equipped with at least one sealing member between the spacer sleeve surface at position about the water jacket and the cylinder cap internal surface respectively. The utility model discloses respectively be provided with O type sealing washer about the department that meets of water jacket and spacer to can prevent that the coolant liquid in the water jacket from getting into the spark plug. And the cover plate and the sealing ring which are connected with the spacer sleeve on the outer side of the valve chamber cover cap can prevent oil gas in the valve chamber from entering air. Meanwhile, the outer ring of the high-voltage wire is also provided with a dustproof cover, so that the performance of the high-voltage wire is more stable. The utility model discloses only need can reach good sealed effect through simple repacking, have very strong practicality.
Description
Technical field
The utility model relates to a kind of cylinder inner structure, specifically is meant a kind of spark plug sealing structure.
Background technique
The design of the water jacket of 4 valve cylinder caps often communicates with valve cage in the motor, needs special part to separate.The quality of separating effect has directly influenced the cost of production and the reliability of complete machine.The spark plug of spark-ignition engine is in valve cage inside, need carry out isolating seal with water jacket, in case the cooling liquid in the water-baffling sleeve is infiltrated in the spark plug mounting hole.Simultaneously, the oil gas in the valve cage does not allow to be leaked in the atmosphere yet.
Prior art adopts the hollow type spacer that high voltage wire, spark plug and cylinder and water jacket are kept apart at present.The lower surface of spacer comes cooling liquid in the sealed water jacket by sealer or copper washer.But spacer, copper washer and cylinder cap are the hard material sealing, and sealing effect is also bad.
Summary of the invention
The purpose of this utility model provide a kind of can seal isolation the water jacket and the spark plug of motor, can also prevent the spark plug sealing structure of oil and gas leakage in the atmosphere.
For achieving the above object, technical solutions of the utility model are as follows: a kind of spark plug sealing structure, include the spacer that high voltage wire and valve cage and spark plug and water jacket are separated, water jacket is respectively equipped with at least one Sealing between the spacer outer surface at position and the cylinder cap internal surface up and down.
Described spacer stretches out outside the valve chamber cover; The outside of described valve chamber cover is provided with the cover plate that joins with spacer; Described cover plate is fixedlyed connected with valve chamber cover by bolt; Described spacer, valve chamber cover and cover plate three connecting part are provided with seal ring.
Described high voltage wire outer ring is provided with the dust cover of diameter greater than cover plate.
Described Sealing is seal ring or sealing gasket.
Described water jacket below is provided with the annular boss that joins with spacer and be connected as a single entity with cylinder cap, and the height of described annular boss can hold a seal ring at least; The seal ring of described water jacket bottom is between the internal surface of spacer outer surface and annular boss.
The utility model respectively is provided with the O RunddichtringO up and down at water jacket and spacer connecting part, thereby can stop the cooling liquid in the water jacket to enter spark plug.And the valve chamber cover outside can stop the oil gas in the valve cage to enter air with cover plate and seal ring that spacer joins.Simultaneously, the high voltage wire outer ring also is provided with dust cover, makes the high voltage wire performance more stable.The utility model only needs can reach good sealing effect by simple repacking, has very strong practicability.
Description of drawings
Fig. 1 is a kind of structural representation of air cylinder of the present utility model;
Among the figure: 1. bolt, 2. the cover plate O-ring seals, 3. cover plate, 4. valve chamber cover, 5. spacer, 6. high voltage wire, 7. go up O-ring seals, 8. descend O-ring seals, 9. spark plug, 10. cylinder cap, 11. valve cages, 12. water jackets, 13. dust covers, 14. boss.
Embodiment
Further specify the utility model below in conjunction with accompanying drawing:
As shown in Figure 1, cylinder is made up of valve chamber cover 4, valve cage 11 and cylinder cap 10.Be provided with spark plug 9 in the cylinder cap 10, the outside of spark plug 9 is provided with high voltage wire 6.Spark plug 9 and high voltage wire 6 separate by spacer 5 and cylinder cap and valve cage 11.Spacer 5 also separates spark plug 9 and water jacket 12.The below of water jacket 12 is provided with the annular boss 14 that joins with spacer 5 and be connected as a single entity with cylinder cap 10.Respectively be provided with O-ring seals 7 and two following O-ring seals 8 on two on spacer 5 outer surfaces of the above and below of water jacket 12 and 10 cylinder cap phase-contact surfaces, the seal ring 8 of water jacket 12 bottoms is between the internal surface of spacer 5 outer surfaces and annular boss 14.Cooling liquid in these two groups of anti-water-baffling sleeves 12 of seal ring sealing enters in the spark plug 9, makes air cylinder structure more safe and reliable.
Spacer 5 stretches out outside the valve chamber cover 4, and is provided with the cover plate 3 that joins with spacer 5 in the outside of valve chamber cover 4.Described spacer 5, valve chamber cover 4 are provided with cover plate O-ring seals 2 with cover plate 3 three connecting parts, can realize the sealing of valve cage like this, prevent that the oil gas in the valve cage from entering in the atmosphere.Described cover plate 3 is fixedlyed connected with valve chamber cover 4 by bolt 1, thus fixing spacer 5.The outer ring of described high voltage wire 6 also is provided with the dust cover 13 of diameter greater than cover plate 3, can make the performance of high voltage wire 6 more reliable and more stable like this.
The utility model only need be realized by simple architecture advances, but can reach desirable sealing effect, therefore has very strong practicability.
Claims (5)
1. spark plug sealing structure includes the spacer that high voltage wire and valve cage and spark plug and water jacket are separated, and it is characterized in that: water jacket is respectively equipped with at least one Sealing between the spacer outer surface at position and the cylinder cap internal surface up and down.
2. spark plug sealing structure according to claim 1 is characterized in that: described spacer stretches out outside the valve chamber cover; The outside of described valve chamber cover is provided with the cover plate that joins with spacer; Described cover plate is fixedlyed connected with valve chamber cover by bolt; Described spacer, valve chamber cover and cover plate three connecting part are provided with seal ring.
3. spark plug sealing structure according to claim 1 and 2 is characterized in that: described high voltage wire outer ring is provided with the dust cover of diameter greater than cover plate.
4. spark plug sealing structure according to claim 1 is characterized in that: described Sealing is seal ring or sealing gasket.
5. spark plug sealing structure according to claim 1 is characterized in that: described water jacket below is provided with the annular boss that joins with spacer and be connected as a single entity with cylinder cap, and the height of described annular boss can hold a seal ring at least; The seal ring of described water jacket bottom is between the internal surface of spacer outer surface and annular boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202585731U CN201739023U (en) | 2010-07-15 | 2010-07-15 | Spark plug sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202585731U CN201739023U (en) | 2010-07-15 | 2010-07-15 | Spark plug sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201739023U true CN201739023U (en) | 2011-02-09 |
Family
ID=43554301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202585731U Expired - Fee Related CN201739023U (en) | 2010-07-15 | 2010-07-15 | Spark plug sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201739023U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985263A (en) * | 2019-11-13 | 2020-04-10 | 英莎菲司特(深圳)清洁动力科技有限公司 | Spark plug sleeve assembly of gas engine |
-
2010
- 2010-07-15 CN CN2010202585731U patent/CN201739023U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985263A (en) * | 2019-11-13 | 2020-04-10 | 英莎菲司特(深圳)清洁动力科技有限公司 | Spark plug sleeve assembly of gas engine |
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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: 20110209 Termination date: 20130715 |