CN204357576U - A kind of sealing configuration of spark plug - Google Patents
A kind of sealing configuration of spark plug Download PDFInfo
- Publication number
- CN204357576U CN204357576U CN201520003321.7U CN201520003321U CN204357576U CN 204357576 U CN204357576 U CN 204357576U CN 201520003321 U CN201520003321 U CN 201520003321U CN 204357576 U CN204357576 U CN 204357576U
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- Prior art keywords
- spark plug
- cylinder head
- shoulder hole
- sealing configuration
- circular groove
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Abstract
The utility model relates to a kind of sealing configuration of spark plug, comprise the cylinder head being provided with shoulder hole, spark plug that lower end is connected with the shoulder hole underpart of cylinder head, be located at cylinder head shoulder hole step on seal washer, the spark plug sleeve be located in the shoulder hole of cylinder head, this spark plug sleeve be enclosed within the outside of described spark plug and lower end and described seal washer near, be provided with circular groove on the top of described spark plug sleeve, this circular groove is corresponding with the hole wall of the shoulder hole of described cylinder head; One " 〇 " RunddichtringO coordinates with the circular groove that described spark plug puts; One locking swivel nut is connected with the upper end portion screw-thread fit of the shoulder hole of described cylinder head, the lower end of this locking swivel nut and the upper end of described spark plug sleeve near.The easy manufacturing of the utility model, is convenient to assembling, and sealing is reliable, can prevent cooling water from entering in spark plug and cylinder, avoids reducing engine power, ensures the working life of spark plug.
Description
Technical field
The utility model relates to gas engine seal parts structure, especially relates to a kind of gas engine uses
The sealing configuration of spark plug.
Background technique
Spark plug is arranged on cylinder cap, and have water cooling around, must design a spark plug sleeve around spark plug to seal water, anti-sealing enters in spark plug and cylinder.Disclosed in CN 203547982 U " a kind of novel spark plug steel bushing sealing configuration ", comprise spark plug, cylinder cap; Cylinder cap is screwed into spark plug; Scyewed joint is adopted between described spark plug and cylinder cap, spark plug steel bushing is sleeved on spark plug, " 〇 " type rubber ring is housed between cylinder cap top and spark plug steel bushing, described spark plug steel bushing upper end is screwed into gland and applies axial pressure to spark plug steel bushing, between cylinder cap bottom and spark plug steel bushing, copper washer is housed, copper washer contacts with cylinder cap face and seals cooling water.This model utility upper part adopts the seal with elastometic washer of " 〇 " type, and bottom makes its stressed modification by spark plug steel bushing transmission of pressure to copper washer again by applying pressure to gland, seals to prevent cooling water from entering firing chamber with cylinder cap plane-plane contact.But, because " 〇 " type rubber ring is mounted in the circular groove of the hole wall on cylinder, be both not easy to annular groove processing, and be also not easy to the assembling of " 〇 " type rubber ring, and easily occur the situation of poor sealing.In addition, the material of spark plug sleeve of the prior art is generally brass, the mode of interference fit is adopted to seal between spark plug sleeve and cylinder head, because the material of cylinder head generally adopts cast iron, and the thermal expansion coefficient difference of brass and cast iron is larger, therefore the cylinder head used now and the thermal expansion coefficient difference of spark plug lining material larger, if during spark plug lining loading cylinder head, coaxality is not with great difficulty pressed partially simultaneously, cylinder head and spark plug bushing interface is caused easily to seep water, if water enters cylinder along spark plug, burning will be caused bad, engine power declines, and reduce the working life of spark plug.
Summary of the invention
The purpose of this utility model is to provide a kind of sealing configuration of spark plug, its easy manufacturing, is convenient to assembling, and sealing is reliable, can prevent cooling water from entering in spark plug and cylinder, avoids reducing engine power, ensures the working life of spark plug.
The sealing configuration of a kind of spark plug described in the utility model, comprise the cylinder head being provided with shoulder hole, spark plug that lower end is connected with the shoulder hole underpart of cylinder head, be located at cylinder head shoulder hole step on seal washer, the spark plug sleeve be located in the shoulder hole of cylinder head, this spark plug sleeve be enclosed within the outside of described spark plug and lower end and described seal washer near, it is characterized in that: be provided with circular groove on the top of described spark plug sleeve, this circular groove is corresponding with the hole wall of the shoulder hole of described cylinder head;
One " 〇 " RunddichtringO coordinates with the circular groove that described spark plug puts, and is somebody's turn to do " 〇 " RunddichtringO between the shoulder hole hole wall and spark plug sleeve of described cylinder head; One locking swivel nut is connected with the upper end portion screw-thread fit of the shoulder hole of described cylinder head, the lower end of this locking swivel nut and the upper end of described spark plug sleeve near.
The sealing configuration of described a kind of spark plug, the lower end of spark plug described in it is threaded with the shoulder hole underpart of described cylinder head.
The sealing configuration of described a kind of spark plug, the circular groove section being located at described spark plug cover top is rectangle or semicircle.
The sealing configuration of described a kind of spark plug, the material of seal washer described in it is Cuprum alloy.
The sealing configuration of described a kind of spark plug, described in it, the material of spark plug sleeve is stainless steel.
The sealing configuration of described a kind of spark plug, described in it, the material of " 〇 " RunddichtringO is rubber.
The technique effect that the utility model is useful: the lower end due to spark plug sleeve adopts gasket seal sealing, top adopts the sealing of " 〇 " RunddichtringO, effectively can prevent cooling water from entering into spark plug sleeve inner, and then prevent cooling water from entering on spark plug and in cylinder; Spark plug sleeve sealing configuration is installed simple, and good airproof performance, can effectively avoid cooling water to enter in spark plug and cylinder, and each correlated parts processing and fabricating of this spark plug sleeve sealing configuration is simple, and cost of parts is low.
Accompanying drawing explanation
Fig. 1 is the erection drawing of spark plug sleeve sealing configuration.
In figure: 1-cylinder head, 2-seal washer, 3-spark plug, 4-spark plug sleeve, 5-" 〇 " RunddichtringO, 6-locks swivel nut.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described:
The sealing configuration of a kind of spark plug shown in Figure 1, comprise the cylinder head 1 being provided with shoulder hole, spark plug 3 that lower end is connected with the shoulder hole underpart of cylinder head, be located at cylinder head shoulder hole step on seal washer 2, the spark plug sleeve 4 be located in the shoulder hole of cylinder head, this spark plug sleeve be enclosed within the outside of described spark plug and lower end and described seal washer near, its substantive distinguishing features is: be provided with circular groove on the top of described spark plug sleeve 4, this circular groove is corresponding with the hole wall of the shoulder hole of described cylinder head; One " 〇 " RunddichtringO 5 coordinates with the circular groove that described spark plug puts, and is somebody's turn to do " 〇 " RunddichtringO between the shoulder hole hole wall and spark plug sleeve of described cylinder head; One locking swivel nut 6 is connected with the upper end portion screw-thread fit of the shoulder hole of described cylinder head, the lower end of this locking swivel nut and the upper end of described spark plug sleeve near.
Further, the lower end of described spark plug 3 is threaded with the shoulder hole underpart of described cylinder head.
Further, the circular groove section being located at described spark plug sleeve 4 top is rectangle.
Further, the material of described seal washer 2 is Cuprum alloy.To improve sealing.
Further, the material of described spark plug sleeve 4 is stainless steel.Get rusty to prevent spark plug cover.
Further, the material of described " 〇 " RunddichtringO 5 is rubber.To ensure that sealing is reliable.
Spark plug is threaded connection and is arranged in cylinder head, seal washer is arranged on the step of the shoulder hole of cylinder head, the lower end of spark plug sleeve and seal washer near, the top of spark plug sleeve is corresponding with the top of the shoulder hole of cylinder head 1, " 〇 " RunddichtringO is arranged in the circular groove on spark plug cover top, the circular groove section of this example is rectangle, plays excellent sealing effect; Locking swivel nut 6 with the shoulder hole screw-thread fit of cylinder head 1 and the upper end of lower end and spark plug sleeve 4 near, by torque spanner, locking swivel nut 6 is tightened, by being applied to the pretightening force of locking swivel nut 6, spark plug sleeve 4 compresses seal washer 2, seal washer 2 plays good seal action, the upper and lower of such spark plug sleeve has all sealed, thus avoids cooling water and enter on spark plug 3 and in cylinder.
The circular groove section of spark plug lining 4 for semicircle, then should be formed another embodiment.
Claims (6)
1. the sealing configuration of a spark plug, comprise spark plug (3), the seal washer (2) be located on the shoulder hole step of cylinder head, the spark plug sleeve (4) be located in the shoulder hole of cylinder head that the cylinder head (1), the lower end that are provided with shoulder hole is connected with the shoulder hole underpart of cylinder head, this spark plug sleeve be enclosed within the outside of described spark plug and lower end and described seal washer near, it is characterized in that:
Be provided with circular groove on the top of described spark plug sleeve (4), this circular groove is corresponding with the hole wall of the shoulder hole of described cylinder head;
The circular groove that one " 〇 " RunddichtringO (5) and described spark plug put coordinates, and is somebody's turn to do " 〇 " RunddichtringO between the shoulder hole hole wall and spark plug sleeve of described cylinder head;
One locking swivel nut (6) is connected with the upper end portion screw-thread fit of the shoulder hole of described cylinder head, the lower end of this locking swivel nut and the upper end of described spark plug sleeve near.
2. the sealing configuration of a kind of spark plug according to claim 1, is characterized in that: the lower end of described spark plug (3) is threaded with the shoulder hole underpart of described cylinder head.
3. the sealing configuration of a kind of spark plug according to claim 1 and 2, is characterized in that: the circular groove section being located at described spark plug sleeve (4) top is rectangle or semicircle.
4. the sealing configuration of a kind of spark plug according to claim 1 and 2, is characterized in that: the material of described seal washer (2) is Cuprum alloy.
5. the sealing configuration of a kind of spark plug according to claim 1 and 2, is characterized in that: the material of described spark plug sleeve (4) is stainless steel.
6. the sealing configuration of a kind of spark plug according to claim 1 and 2, is characterized in that: the material of described " 〇 " RunddichtringO (5) is rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520003321.7U CN204357576U (en) | 2015-01-05 | 2015-01-05 | A kind of sealing configuration of spark plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520003321.7U CN204357576U (en) | 2015-01-05 | 2015-01-05 | A kind of sealing configuration of spark plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204357576U true CN204357576U (en) | 2015-05-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520003321.7U Active CN204357576U (en) | 2015-01-05 | 2015-01-05 | A kind of sealing configuration of spark plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204357576U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107508145A (en) * | 2017-09-06 | 2017-12-22 | 广西玉柴机器股份有限公司 | Engine new spark plug |
| CH713504A1 (en) * | 2017-02-28 | 2018-08-31 | Liebherr Machines Bulle Sa | Ignition system for a motor. |
| CN108757267A (en) * | 2018-05-18 | 2018-11-06 | 东风商用车有限公司 | External-capacity spacer bush device of spark plug in engine and manufacturing method thereof |
| CN111075591A (en) * | 2020-01-09 | 2020-04-28 | 中国重汽集团济南动力有限公司 | Cylinder cover water cavity assembly with bushing |
-
2015
- 2015-01-05 CN CN201520003321.7U patent/CN204357576U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH713504A1 (en) * | 2017-02-28 | 2018-08-31 | Liebherr Machines Bulle Sa | Ignition system for a motor. |
| CN107508145A (en) * | 2017-09-06 | 2017-12-22 | 广西玉柴机器股份有限公司 | Engine new spark plug |
| CN108757267A (en) * | 2018-05-18 | 2018-11-06 | 东风商用车有限公司 | External-capacity spacer bush device of spark plug in engine and manufacturing method thereof |
| CN108757267B (en) * | 2018-05-18 | 2023-10-24 | 东风商用车有限公司 | Outer spacer device of spark plug in engine and manufacturing method thereof |
| CN111075591A (en) * | 2020-01-09 | 2020-04-28 | 中国重汽集团济南动力有限公司 | Cylinder cover water cavity assembly with bushing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 402160 Fenghuang Lake Industrial Park, Yongchuan Industrial Park, Chongqing Patentee after: Chongqing Pangu Power Technology Co.,Ltd. Address before: 402160 Fenghuang Lake Industrial Park, Yongchuan Industrial Park, Chongqing Patentee before: CHONGQING GOOGOL ENGINE-TECH Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |