CN207066692U - A kind of engine cylinder cap sealing - Google Patents
A kind of engine cylinder cap sealing Download PDFInfo
- Publication number
- CN207066692U CN207066692U CN201720641507.4U CN201720641507U CN207066692U CN 207066692 U CN207066692 U CN 207066692U CN 201720641507 U CN201720641507 U CN 201720641507U CN 207066692 U CN207066692 U CN 207066692U
- Authority
- CN
- China
- Prior art keywords
- engine cylinder
- limiting section
- cylinder cap
- ring seal
- connecting shaft
- 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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- Gasket Seals (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
It the utility model is related to a kind of engine cylinder cap sealing, air-leakage test for engine cylinder cover, including sequentially coaxially connect fixed part (1), connecting shaft (2), limiting section (3), cut somebody's hair (4) and hex bolts (5), the fixed part (1) is cylindrical structural, the screw thread (6) for being used for tightening with engine cylinder cover is provided with fixed part (1), the limiting section (3) is Circular plate structure, and the limiting section (3) is provided with O-ring seal (7) towards the one side of connecting shaft (2).The device is easy to use, need to only be directly threaded into the device in gaging hole to be checked and can reach sealing effectiveness, drastically increases the efficiency of cylinder cap air-leakage test experiment, while also ensure that sealing effectiveness, convenient and swift.
Description
Technical field
It the utility model is related to sealing device, and in particular to a kind of engine cylinder cap sealing, for engine cylinder cover
Air-leakage test.
Background technology
Existing automobile engine cylinder head air-leakage test mainly examines method using gas, i.e.,：Water channel first to cylinder cap,
Detection hole on oil duct or air flue carries out plug for seal, cylinder cap inner chamber is formed the cavity of a closing, then toward in the cavity
Gases at high pressure are injected, the air pressure in water channel, oil duct or air flue is finally detected, judges the water for detecting obtained atmospheric pressure value
The air-tightness in road, oil duct or air flue.But the plug for seal to detection hole at present is usually to be blocked using special frock
Detection hole, this method complex process, assembling is cumbersome, takes time and effort.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of engine cylinder cap sealing, this can be sealed
Device is directly tightened in detection hole, and installation and removal are all very convenient, solve the problems, such as existing frock sealing technology complexity, carry
The high efficiency of air-leakage test.
The technical solution of the utility model is：
A kind of engine cylinder cap sealing, including sequentially coaxially connect fixed part, connecting shaft, limiting section, cut somebody's hair and
Hex bolts, the fixed part are cylindrical structural, and the screw thread for being used for tightening with engine cylinder cover is provided with fixed part, described
Limiting section is Circular plate structure, and the limiting section is provided with O-ring seal towards the one side of connecting shaft.
Further, the internal diameter of the O-ring seal is more than the diameter of connecting shaft, and the external diameter of the O-ring seal is small
In the diameter of limiting section.
Further, the O-ring seal is the integrated formed structure that rubber makes.
Further, in order to ensure sealing effectiveness, it is provided with towards the one side of connecting shaft in limiting section and matches somebody with somebody with O-ring seal
The annular groove of conjunction, the depth of the annular groove are less than the height of O-ring seal.
Further, described to cut somebody's hair as frustum cone structure, the diameter cut somebody's hair is less than the diameter of limiting section.
Further, the fixed part, connecting shaft, limiting section, cut somebody's hair, hex bolts, screw thread and annular groove are integrated
Molding structure.
In order to meet seal request, O-ring seal is set towards the one side of connecting shaft in limiting section, to ensure sealing effect
Fruit.
The sealing device, is directly placed on treats when in use by a kind of engine cylinder cap sealing provided by the utility model
In the water hole of detection, oilhole or stomata, hex bolts is tightened, then passes through the screw thread on fixed part excircle and detection hole coordinates
Tighten, the O-ring seal on limiting section seals detection hole, then completes and block up sealing to the plug of detection hole；End to be detected
Afterwards, hex bolts is unclamped, extracts the sealing device.
It should be noted that a kind of engine cylinder cap sealing provided by the utility model is the specification type according to cylinder cap
Number specific design.
Compared with prior art, a kind of engine cylinder cover sealing device structure provided by the utility model is simple, user
Just, the device need to be only directly threaded into gaging hole to be checked and can reach sealing effectiveness, drastically increase cylinder cap air-leakage test
The efficiency of experiment, while sealing effectiveness is also ensure that, it is convenient and swift.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model.
Fig. 2 is front view of the present utility model.
Fig. 3 is upward view of the present utility model.
Fig. 4 is axis sectional view of the present utility model.
Shown in figure：1- fixed parts, 2- connecting shafts, 3- limiting sections, 4- cut somebody's hair, 5- hex bolts, 6- screw threads, and 7- annulars are close
Seal, 8- annular grooves.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with the accompanying drawings and implement
The utility model is described in further detail for example, it should be appreciated that the specific embodiment that this place is described is only explaining this reality
With new, it is not used to limit the utility model.
Provided by the utility model is a kind of engine cylinder cap sealing, is tested for engine cylinder cover air-leakage test
In closure to detection hole, its structure as Figure 1-4, including sequentially coaxially connect fixed part 1, connecting shaft 2, limiting section 3,
Cut somebody's hair 4 and hex bolts 5, the fixed part 1 is cylindrical structural, is provided with fixed part 1 and is used to tighten with engine cylinder cover
Screw thread 6, the limiting section 3 is Circular plate structure, and the limiting section 3 is provided with O-ring seal 7 towards the one side of connecting shaft 2.
Further, as shown in Figure 3-4, the internal diameter of the O-ring seal 7 is more than the diameter of connecting shaft 2, the annular
The external diameter of sealing ring 7 is less than the diameter of limiting section 3.
Further, the O-ring seal 7 is rubber integrated formed structure.
Further, described cut somebody's hair 4 is frustum cone structure, and 4 diameter of cutting somebody's hair is less than the diameter of limiting section 3.
Further, as shown in figure 4, in order to meet seal request, an O-ring seal 7 is set on limiting section 3,
The annular groove 8 that limiting section 3 is also provided with coordinating with O-ring seal 7 towards the one side of connecting shaft 2, the annular groove 8
Depth be less than O-ring seal 7 height.
Further, the fixed part 1, connecting shaft 2, limiting section 3,4, hex bolts 5 of cutting somebody's hair, screw thread 6 and annular groove 8
Be formed in one structure.
Application method of the present utility model is：
By engine cylinder cap sealing provided by the utility model directly it is corresponding be positioned over water hole to be detected on cylinder cap,
In oilhole or stomata, tighten hex bolts 5, then the sealing device by the screw thread 6 on fixed part 1 and water hole to be detected,
Oilhole or stomata are tightened, and the O-ring seal 7 on limiting section 3 carries out plug to detection hole and blocked up, then completes the plug to detection hole
Stifled sealing, can be to carrying out cylinder cap air-leakage test after sealing；After end to be detected, hex bolts 5 is unclamped, extracts the sealing device
.
A kind of engine cylinder cap sealing provided by the utility model changes existing use special tooling to detection hole
Blocked, design a kind of sealing device simple in construction, the device need to be only directly threaded into gaging hole to be checked and fixed, use ring
The mode of shape sealing ring ensures sealing effectiveness；The sealing device has the characteristics of simple in construction, easy to operate, is ensureing to seal
The efficiency of cylinder cap air-leakage test experiment is also drastically increased while effect.
The part not illustrated in specification is prior art or common knowledge.It is new that the present embodiment is merely to illustrate the practicality
Type, rather than limitation the scope of the utility model, the equivalent replacement that those skilled in the art are done for the utility model etc.
Modification is deemed to fall within the utility model right claim institute protection domain.
Claims (6)
1. a kind of engine cylinder cap sealing, the air-leakage test for engine cylinder cover, it is characterised in that：Including same successively
The fixed part (1) of axis connection, connecting shaft (2), limiting section (3), cut somebody's hair (4) and hex bolts (5), the fixed part (1) are circle
Column construction, the screw thread (6) for being used for tightening with engine cylinder cover is provided with fixed part (1), the limiting section (3) is plectane knot
Structure, the limiting section (3) are provided with O-ring seal (7) towards the one side of connecting shaft (2).
A kind of 2. engine cylinder cap sealing according to claim 1, it is characterised in that：The O-ring seal (7)
Internal diameter be more than the diameter of connecting shaft (2), the external diameter of the O-ring seal (7) is less than the diameter of limiting section (3).
A kind of 3. engine cylinder cap sealing according to claim 2, it is characterised in that：The O-ring seal (7)
For rubber integrated formed structure.
A kind of 4. engine cylinder cap sealing according to claim 3, it is characterised in that：Limiting section (3) direction
The one side of connecting shaft (2) is provided with the annular groove (8) coordinated with O-ring seal (7), and the depth of the annular groove (8) is less than
The height of O-ring seal (7).
A kind of 5. engine cylinder cap sealing according to claim 1, it is characterised in that：Described cut somebody's hair (4) are round platform
Structure, cut somebody's hair (4) diameter be less than limiting section (3) diameter.
6. according to the engine cylinder cap sealing of Arbitrary Term described in claim 1-5, it is characterised in that：The fixed part (1),
Connecting shaft (2), limiting section (3), cut somebody's hair (4), hex bolts (5), screw thread (6) and annular groove (8) are formed in one structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720641507.4U CN207066692U (en) | 2017-06-05 | 2017-06-05 | A kind of engine cylinder cap sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720641507.4U CN207066692U (en) | 2017-06-05 | 2017-06-05 | A kind of engine cylinder cap sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207066692U true CN207066692U (en) | 2018-03-02 |
Family
ID=61505407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720641507.4U Expired - Fee Related CN207066692U (en) | 2017-06-05 | 2017-06-05 | A kind of engine cylinder cap sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207066692U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109068521A (en) * | 2018-07-24 | 2018-12-21 | 天津深之蓝海洋设备科技有限公司 | Sealing cover, underwater boost motor, control device and its airtight detection method |
-
2017
- 2017-06-05 CN CN201720641507.4U patent/CN207066692U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109068521A (en) * | 2018-07-24 | 2018-12-21 | 天津深之蓝海洋设备科技有限公司 | Sealing cover, underwater boost motor, control device and its airtight detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180302 Termination date: 20200605 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |