CN203685412U - Sealing structure of oil duct port of cylinder head - Google Patents
Sealing structure of oil duct port of cylinder head Download PDFInfo
- Publication number
- CN203685412U CN203685412U CN201420089390.XU CN201420089390U CN203685412U CN 203685412 U CN203685412 U CN 203685412U CN 201420089390 U CN201420089390 U CN 201420089390U CN 203685412 U CN203685412 U CN 203685412U
- Authority
- CN
- China
- Prior art keywords
- oil duct
- duct junction
- section
- cylinder head
- bolt head
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Abstract
The utility model discloses a sealing structure of an oil duct port of a cylinder head. The sealing structure comprises a cylinder head body. The cylinder head body is provided with a main oil duct, the oil duct port of the main oil duct is in a step shape and is connected with a plug in a screw-thread fit mode, the plug comprises a threaded rod and a bolt head at one end of the threaded rod, a circle of rubber seal ring is further arranged on the threaded rod in a sleeved mode, the rubber seal ring is located between a thread section of the threaded rod and the bolt head and is tapered, and the outer diameter of one end, away from the bolt head, of the rubber seal ring is smaller than that of one end, close to the bolt head, of the rubber seal ring. The sealing structure is convenient and fast to assemble, capable of greatly relieving labor intensity of workers, good in sealing effect and low in cost.
Description
Technical field
The utility model relates to cylinder head, relates in particular to a kind of cylinder head oil duct junction sealing configuration.
Background technique
Conventionally, in cylinder head, there is a main oil gallery, for to lubrication oil supplies such as camshafts.After assembling completes, the oil duct junction of this main oil gallery needs sealing.Traditional cylinder head is mainly sealed by bolt and copper washer, but so not only sealing effect is bad, and holistic cost is higher, also can increase workman's labor intensity simultaneously.
Model utility content
For prior art above shortcomings, the purpose of this utility model is just to provide a kind of cylinder head oil duct junction sealing configuration, easy to assembly, quick, can greatly reduce workman's labor intensity, good sealing effect, and with low cost.
To achieve these goals, the technical solution adopted in the utility model is such: a kind of cylinder head oil duct junction sealing configuration, comprise cylinder head body, this cylinder head body has main oil gallery, it is characterized in that: the oil duct junction of described main oil gallery is step-like, its diameter near one section, oil duct junction edge is greater than the diameter away from one section, oil duct junction edge, is provided with internal thread at oil duct junction away from a section of oil duct junction edge; Oil duct junction screw-thread fit at main oil gallery is connected with an obstruction, and described obstruction comprises the bolt head of screw rod and screw rod one end, and described bolt head is hexagon socket head cap screw head, and its external diameter is less than or equal to the diameter of oil duct junction near one section, its edge; Described screw rod has the outside thread matching away from the internal thread on one section, its edge with oil duct junction away from one end of bolt head; On screw rod, be also arranged with a rubber seal, described rubber seal is between screw flight section and bolt head, and this rubber seal is tapered, and its one end external diameter away from bolt head is less than its external diameter near bolt head one end.
Further, the internal thread of described oil duct junction is dry seal formula screw thread.Can more effectively seal oil duct junction, and can further improve sealing effect.
Further, the hexagonal cavity of described hexagon socket head cap screw is step-like, and its cross sectional area near one section of hexagonal cavity open end is greater than the cross sectional area near one section of hexagonal cavity closed end.Also can carry out dismounting by different inner hexagon spanners like this, thereby make dismounting convenient.
Compared with prior art, the utlity model has following advantage: simple in structure, good sealing effect; Directly carry out the oil duct junction sealing of main oil gallery by obstruction, easy to assembly, quick, can greatly reduce workman's labor intensity; And cancel the use of copper washer, can reduce well holistic cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation stopping up.
In figure: 1-cylinder head body, 2-main oil gallery, 3-oil duct junction, 4-stop up 41-screw rod, 42-bolt head, 43-rubber seal, 44-hexagonal cavity.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment: referring to Fig. 1, Fig. 2, a kind of cylinder head oil duct junction sealing configuration, comprises cylinder head body 1, and this cylinder head body 1 has main oil gallery 2.The oil duct junction 3 of described main oil gallery 2 is step-like, and its diameter near one section, oil duct junction 3 edge is greater than the diameter away from one section, oil duct junction 3 edge, is provided with internal thread at oil duct junction 3 away from a section of oil duct junction 3 edges.The internal thread of described oil duct junction 3 is dry seal formula screw thread; Can more effectively seal oil duct junction 3, and can further improve sealing effect.
On screw rod 41, be also arranged with a rubber seal 43, described rubber seal 43 is between the thread section and bolt head 42 of screw rod 41, and this rubber seal 43 is tapered, and its one end external diameter away from bolt head 42 is less than its external diameter near bolt head 42 one end.Like this, stop up in 4 installing, oil duct junction 3 is sealed, thereby make easy for installation, fast, can greatly reduce workman's labor intensity.
Finally it should be noted that, above embodiment is only in order to the technical solution of the utility model to be described but not restriction technologies scheme, those of ordinary skill in the art is to be understood that, those are modified to the technical solution of the utility model or are equal to replacement, and do not depart from aim and the scope of the technical program, all should be encompassed in the middle of claim scope of the present utility model.
Claims (3)
1. a cylinder head oil duct junction sealing configuration, comprise cylinder head body, this cylinder head body has main oil gallery, it is characterized in that: the oil duct junction of described main oil gallery is step-like, its diameter near one section, oil duct junction edge is greater than the diameter away from one section, oil duct junction edge, is provided with internal thread at oil duct junction away from a section of oil duct junction edge; Oil duct junction screw-thread fit at main oil gallery is connected with an obstruction, and described obstruction comprises the bolt head of screw rod and screw rod one end, and described bolt head is hexagon socket head cap screw head, and its external diameter is less than or equal to the diameter of oil duct junction near one section, its edge; Described screw rod has the outside thread matching away from the internal thread on one section, its edge with oil duct junction away from one end of bolt head; On screw rod, be also arranged with a rubber seal, described rubber seal is between screw flight section and bolt head, and this rubber seal is tapered, and its one end external diameter away from bolt head is less than its external diameter near bolt head one end.
2. cylinder head oil duct junction sealing configuration according to claim 1, is characterized in that: the internal thread of described oil duct junction is dry seal formula screw thread.
3. cylinder head oil duct junction sealing configuration according to claim 1 and 2, it is characterized in that: the hexagonal cavity of described hexagon socket head cap screw is step-like, its cross sectional area near one section of hexagonal cavity open end is greater than the cross sectional area near one section of hexagonal cavity closed end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420089390.XU CN203685412U (en) | 2014-02-28 | 2014-02-28 | Sealing structure of oil duct port of cylinder head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420089390.XU CN203685412U (en) | 2014-02-28 | 2014-02-28 | Sealing structure of oil duct port of cylinder head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203685412U true CN203685412U (en) | 2014-07-02 |
Family
ID=51007324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420089390.XU Expired - Lifetime CN203685412U (en) | 2014-02-28 | 2014-02-28 | Sealing structure of oil duct port of cylinder head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203685412U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121058A (en) * | 2014-07-10 | 2014-10-29 | 安徽江淮汽车股份有限公司 | Engine lubrication system and oil duct seal assembly thereof |
-
2014
- 2014-02-28 CN CN201420089390.XU patent/CN203685412U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121058A (en) * | 2014-07-10 | 2014-10-29 | 安徽江淮汽车股份有限公司 | Engine lubrication system and oil duct seal assembly thereof |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |