CN207989166U - A kind of head-cover structure of engine - Google Patents
A kind of head-cover structure of engine Download PDFInfo
- Publication number
- CN207989166U CN207989166U CN201820327132.9U CN201820327132U CN207989166U CN 207989166 U CN207989166 U CN 207989166U CN 201820327132 U CN201820327132 U CN 201820327132U CN 207989166 U CN207989166 U CN 207989166U
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- Prior art keywords
- bearing
- mounting hole
- column sleeve
- aperture
- head
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
A kind of head-cover structure of engine, ontology (1) including valve mechanism cover and seal washer (2), the periphery of ontology (1) forms several arc-shaped bearings (11), and mounting hole (12) is formed on bearing (11)；The seal washer (2) is resisted against on the lower face on ontology (1) periphery, several journal stirrups (21) opposite with bearing (11) are formed on seal washer (2), the column sleeve (22) of annular is formed on journal stirrup (21), column sleeve (22) is plugged in the mounting hole (12) of bearing (11), the card slot (13) of annular is formed on the inner wall of the mounting hole (12), the bulge loop (23) of annular is formed on the outer wall of column sleeve (22), bulge loop (23) is plugged in the card slot (13) of bearing (11).It is securely fixed in engine air cylinder cap is more stable in cylinder head, and sealing effect is more preferable, reduces risk of leakage, and can improve vibration noise.
Description
Technical field：
The utility model is related to the technical fields of engine, more specifically to a kind of valve mechanism cover knot of engine
Structure.
Background technology：
Cylinder cover is the case covered on engine cylinder body, can prevent introduced contaminants from entering in engine, simultaneously
Play the role of sealing.Existing engine air cylinder cap is generally fixed on cylinder using the studs of four secure rockers
It covers, 4 mounting holes are distributed on the top surface of valve mechanism cover, and such head-cover structure is simple, but has the following disadvantages：1、
It cannot fully, reliably seal so that there are engine oil leakage risks with cylinder cap contact surface for valve mechanism cover；2, solid only with four bolts
It is fixed so that valve mechanism cover vibration aggravation, vibration noise are big；3, the vibration of valve mechanism cover can be transmitted to rocking arm shaft member, to its property
It can cause harmful effect.
Utility model content：
The purpose of the utility model is to solve the deficiencies of the prior art, and provides a kind of valve mechanism cover knot of engine
Structure can be securely fixed in engine air cylinder cap is more stable in cylinder head, and sealing effect is more preferable, and can be improved vibration and be made an uproar
Sound.
A kind of head-cover structure of engine includes the ontology and seal washer of valve mechanism cover, all edge formings of ontology
There are several arc-shaped bearings, mounting hole is formed on bearing；The seal washer is resisted against the lower face of body perimeter
On, several journal stirrups opposite with bearing are formed on seal washer, the column sleeve of annular is formed on journal stirrup, and column sleeve is plugged on branch
In the mounting hole of seat, the card slot of annular is formed on the inner wall of the mounting hole, the bulge loop of annular is formed on the outer wall of column sleeve,
Bulge loop is plugged in the card slot of bearing.
Preferably, the mounting hole is poroid in step, and mounting hole is made of macropore and aperture, the big pore size distribution of mounting hole
In the lower section of aperture, the aperture of the column sleeve inner wall is equal to the aperture of mounting hole aperture, and the diameter of the column sleeve outer wall is equal to peace
Fill the aperture of hole macropore.
Preferably, the radius of the card slot semicircular in shape on the bearing, the bulge loop semicircular in shape on column sleeve, bulge loop is equal to card
The radius of slot.
Preferably, the bearing is equipped with 8~10, and the height of bearing is more than the height of column sleeve.
The beneficial effects of the utility model are：
1, it is securely fixed in engine air cylinder cap is more stable in cylinder head, and sealing effect is more preferable, reduces leakage
Risk, and vibration noise can be improved.
2, it connects seal washer and valve mechanism cover, facilitates the pairing between seal washer and valve mechanism cover, more
Facilitate the installation of valve mechanism cover.
Description of the drawings：
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the schematic cross-sectional view at the utility model bearing.
In figure：1, ontology；11, bearing；12, mounting hole；13, card slot；2, seal washer；21, journal stirrup；22, column sleeve；23、
Bulge loop.
Specific implementation mode：
Embodiment：See Fig. 1, shown in 2, a kind of head-cover structure of engine, including the ontology 1 of valve mechanism cover and sealing
The periphery of washer 2, ontology 1 forms several arc-shaped bearings 11, and mounting hole 12 is formed on bearing 11；The sealing
Washer 2 is resisted against on the lower face on 1 periphery of ontology, several journal stirrups 21 opposite with bearing 11 are formed on seal washer 2, branch
The column sleeve 22 of annular is formed on ear 21, column sleeve 22 is plugged in the mounting hole 12 of bearing 11, on the inner wall of the mounting hole 12
The card slot 13 of annular is formed, the bulge loop 23 of annular is formed on the outer wall of column sleeve 22, bulge loop 23 is plugged on the card slot of bearing 11
In 13.
Preferably, the mounting hole 12 in step it is poroid, mounting hole 12 is made of macropore and aperture, mounting hole 12 it is big
In the lower section of aperture, the aperture of 22 inner wall of the column sleeve is equal to the aperture of 12 aperture of mounting hole, 22 outer wall of the column sleeve for pore size distribution
Diameter be equal to 12 macropore of mounting hole aperture.
Preferably, 13 semicircular in shape of card slot on the bearing 11,23 semicircular in shape of bulge loop on column sleeve 22, bulge loop 23
Radius is equal to the radius of card slot 13.
Preferably, the bearing 11 is equipped with 8~10, and the height of bearing 11 is more than the height of column sleeve 22.
Operation principle：The utility model is the head-cover structure of engine, and the sheet in valve mechanism cover will originally be arranged
4 mounting holes of 1 top end face of body, be re-established as type 1 side of ontology multiple mounting holes, if Fig. 1 implement, with 10 mounting holes 12
For, and change the studs size of secure rocker and open up the threaded hole opposite with mounting hole 12 in cylinder head；This
Mode connects, and is securely fixed in engine air cylinder cap is more stable in cylinder head, and sealing effect is more preferable, reduces leakage wind
Danger, and vibration noise can be improved；
And seal washer 2 and valve mechanism cover 1 open up matched structure, facilitate and set valve mechanism cover 1 and seal washer 2
It is covered to cylinder for an integral installation.
The embodiment rather than limits the present invention the utility model is illustrated.Any this field
Technical staff can modify to the embodiment, therefore this practicality under the spirit and scope without prejudice to the utility model
Novel rights protection scope, should be as listed by the claim of the utility model.
Claims (4)
1. a kind of head-cover structure of engine includes the ontology (1) and seal washer (2) of valve mechanism cover, it is characterised in that：
The periphery of ontology (1) forms several arc-shaped bearings (11), and mounting hole (12) is formed on bearing (11)；Described is close
Seal washer (2) is resisted against on the lower face on ontology (1) periphery, and it is opposite with bearing (11) that several are formed on seal washer (2)
Journal stirrup (21), the column sleeve (22) of annular is formed on journal stirrup (21), column sleeve (22) is plugged on the mounting hole (12) of bearing (11)
It is interior, the card slot (13) of annular is formed on the inner wall of the mounting hole (12), and the convex of annular is formed on the outer wall of column sleeve (22)
Ring (23), bulge loop (23) are plugged in the card slot (13) of bearing (11).
2. a kind of head-cover structure of engine according to claim 1, it is characterised in that：The mounting hole (12)
Poroid in step, mounting hole (12) is made of macropore and aperture, and the macropore of mounting hole (12) is distributed in the lower section of aperture, the column
The aperture for covering (22) inner wall is equal to the aperture of mounting hole (12) aperture, and the diameter of column sleeve (22) outer wall is equal to mounting hole (12)
The aperture of macropore.
3. a kind of head-cover structure of engine according to claim 2, it is characterised in that：On the bearing (11)
Card slot (13) semicircular in shape, bulge loop (23) semicircular in shape on column sleeve (22), the radius of bulge loop (23) are equal to the half of card slot (13)
Diameter.
4. a kind of head-cover structure of engine according to claim 1, it is characterised in that：The bearing (11) is set
There are 8~10, the height of bearing (11) is more than the height of column sleeve (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820327132.9U CN207989166U (en) | 2018-03-10 | 2018-03-10 | A kind of head-cover structure of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820327132.9U CN207989166U (en) | 2018-03-10 | 2018-03-10 | A kind of head-cover structure of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207989166U true CN207989166U (en) | 2018-10-19 |
Family
ID=63827598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820327132.9U Active CN207989166U (en) | 2018-03-10 | 2018-03-10 | A kind of head-cover structure of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207989166U (en) |
-
2018
- 2018-03-10 CN CN201820327132.9U patent/CN207989166U/en active Active
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