CN203879647U - Anti-disengagement cylinder head cover sealing gasket - Google Patents
Anti-disengagement cylinder head cover sealing gasket Download PDFInfo
- Publication number
- CN203879647U CN203879647U CN201420199667.4U CN201420199667U CN203879647U CN 203879647 U CN203879647 U CN 203879647U CN 201420199667 U CN201420199667 U CN 201420199667U CN 203879647 U CN203879647 U CN 203879647U
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- CN
- China
- Prior art keywords
- sealing gasket
- cylinder head
- head cover
- barb
- loose
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 52
- 238000005728 strengthening Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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- Gasket Seals (AREA)
Abstract
The utility model discloses an anti-disengagement cylinder head cover sealing gasket. The anti-disengagement cylinder head cover sealing gasket comprises a sealing gasket body, a lower sealing protrusion and an anti-disengagement barb. The sealing gasket body is provided with an embed-in portion on the upper portion and a base body portion on the lower portion. The embed-in portion is embedded in and connected into a sealing groove in a cylinder head cover and is in clearance fit with the sealing groove. The lower sealing protrusion is arranged at the bottom of the base body portion. The lower sealing protrusion and the cylinder head cover are attached in a sealed mode. The side wall of the outer side of the base body portion extends outwards in a tongue-shaped mode and is provided with the barb-shaped anti-disengagement barb. The anti-disengagement barb and the cylinder head cover are hooked and matched. The sealing gasket is provided with the anti-disengagement structure, and therefore the phenomenon that the sealing gasket is prone to falling when assembled on the cylinder head cover is eliminated, and assembly efficiency and assembly quality are improved.
Description
Technical field
The utility model relates to seal structure for engine field, especially relates to a kind of loose-prevention type cylinder head cover sealing gasket.
Background technique
Between cylinder head and valve mechanism cover, sealing gasket is installed, is used for preventing gas blowby and oil leakage, realize the sealing between cylinder head and valve mechanism cover.Generally, in engine assembly process, first sealing gasket is assemblied in to valve mechanism cover groove the inside, then valve mechanism cover is assemblied in cylinder head.In assembly process, Anti-releasing position limiting structure is not set between sealing gasket and valve mechanism cover, causes sealing gasket very easily to come off, cause the work holdup to do over again, quality and the efficiency of impact assembling.
Publication No. is CN102588141A, date of publication is to disclose a kind of Anti-drop integral cylinder cover component in the Chinese patent document on July 18th, 2012, the one-piece cylinder housing that comprises integral molded plastic moulding, the edge of described valve mechanism cover is provided with annular groove and some with female axle sleeve and the bolt that penetrates axle sleeve, described bolt epimere and the smooth surface of hypomere and the surface in stage casing are provided with the outside thread matching with the internal thread of axle sleeve, on described bolt, segment length is more than or equal to the length of axle sleeve, bolt epimere diameter is less than the internal thread path of axle sleeve, described bolt hypomere diameter is less than the externally threaded large footpath of bolt, described groove has been embedded in seal washer.In this loose-prevention type structure, by adopting between axle sleeve and bolt, be threaded, by the Machine Design of bolt, the in the situation that installing and using, air cylinder lid cover component prevents that bolt from deviating from from cylinder head not affecting, realize the anti-drop function after each assembly packing.But seal washer is directly embedded into the annular groove arranging on the edge in valve mechanism cover, disconnecting prevention structure is not set, in the process of assembling, very easily there is the phenomenon that seal washer comes off from valve mechanism cover like this.
Notification number is CN202325895U, the day for announcing is in the Chinese patent document on July 11st, 2012, to disclose the sealing configuration of a kind of cylinder head and valve mechanism cover, comprise cylinder head, valve mechanism cover, be opened in the semicircle processing technology hole of cylinder head end, between described cylinder head and valve mechanism cover, be provided with sealing gasket, described sealing gasket is provided with the seal convexity in sealing semicircle processing technology hole, in described seal convexity, offer half slot, inner surface and the outer surface of described seal convexity are rubber layer, between the rubber layer of seal convexity inner surface and the rubber layer of outer surface, be provided with metal frame.In this structure, solved the problem that still keeps good seal performance between cylinder head and valve mechanism cover under powerful extruding force, but disconnecting prevention structure is not set between sealing gasket and valve mechanism cover, the caducous problem of sealing gasket will be brought difficulty to assembling work.
Model utility content
The technical problems to be solved in the utility model is to provide a kind of loose-prevention type cylinder head cover sealing gasket, and it has disconnecting prevention structure, has eliminated the phenomenon that sealing gasket easily comes off on being assembled to valve mechanism cover time, thereby has improved efficiency of assembling and assembly quality.
The utility model is to make by the following technical programs above-mentioned technical problem be solved.
A kind of loose-prevention type cylinder head cover sealing gasket, comprise sealing gasket body, lower seal projection and anticreep barb, two-part up and down of sealing gasket body are Embedded Division and base portion, in the sealed groove of Embedded Division interlocking in valve mechanism cover, Embedded Division and sealed groove are interference fit, the bottom of base portion arranges lower seal projection and forms sealing laminating with cylinder head, is ligule and stretches out barb-shaped anticreep barb is set on the sidewall in base portion outside, and anticreep barb articulates and coordinates with valve mechanism cover formation.In this structure, by anticreep barb is set, articulates and coordinate with valve mechanism cover formation, in assembly process, sealing gasket is by the phenomenon that can not come off like this, and can not cause assembly quality undesirable because of loosening or displacement, the cost waste that causes the work holdup to be done over again.
As preferably, in anticreep barb, metal frame is set.Make anticreep barb firm reliable, and easily tensile buckling, highly versatile.
As preferably, the top of Embedded Division arranges seal convexity.Reinforce the sealing effect between Embedded Division and valve mechanism cover.
As preferably, on the sidewall of Embedded Division, strengthening rib is set.Setting up strengthening rib can make Embedded Division rabbet more closely in sealed groove, not get loose phenomenon.
As preferably, lower seal projection is made as two and its section and is circular arc.Sealing effect good reliability.
As preferably, anticreep barb and valve mechanism cover articulate some corrugated shape raised lines are set on the gib head inner side surface contacting.Strengthen the mount surface frictional force between anticreep barb and valve mechanism cover, prevent from getting loose.
The beneficial effects of the utility model: be easy to manufacturing, good sealing effect.Effectively prevented that the phenomenon that in assembly process, sealing gasket becomes flexible, is shifted and comes off from occurring, the cost waste of having avoided the work holdup to do over again causing.Efficiency of assembling and assembly quality have been improved.
Accompanying drawing explanation
Fig. 1 is the structural representation under working state of the present utility model;
Fig. 2 is the sectional structure schematic diagram at B-B place in Fig. 1.
In figure: 1-sealing gasket body, 2-lower seal projection, 3-anticreep barb, 4-Embedded Division, 5-base portion, 6-valve mechanism cover, 7-sealed groove, the upper seal convexity of 8-, 9-strengthening rib.
Embodiment
Below by embodiment, also by reference to the accompanying drawings the utility model is described in detail.
A kind of loose-prevention type cylinder head cover sealing gasket of the utility model as shown in Fig. 1 Fig. 2, comprise sealing gasket body 1, lower seal projection 2 and anticreep barb 3, two-part up and down of sealing gasket body 1 are Embedded Division 4 and base portion 5, in the sealed groove 7 of Embedded Division 4 interlockings in valve mechanism cover 6, Embedded Division 4 is interference fit with sealed groove 7, the bottom of base portion 5 arranges lower seal projection 2 and forms sealing laminating with cylinder head, on the sidewall in base portion 5 outsides, be ligule and stretch out barb-shaped anticreep barb 3 is set, anticreep barb 3 forms to articulate with valve mechanism cover 6 and coordinates.
In order to make anticreep barb 3 firm reliable, and easily tensile buckling, as improvement, can be at the interior metal frame that arranges of anticreep barb 3.By conversion body, make itself and valve mechanism cover be easy to articulate like this, versatility is good.
As another kind of mode of execution of the present utility model, the top that can be chosen in Embedded Division 4 arranges seal convexity 8.Further improve, also strengthening rib 9 can be set on the sidewall of Embedded Division 4.This kind of structure is conducive to strengthen Embedded Division 4 and is combined effect with the sealing of sealed groove 7, prevents the phenomenon that gets loose.
As another mode of execution of the present utility model, lower seal projection 2 is made as to two and make its section be circular arc.Such sealing structure is effective.
In order to prevent getting loose, as further improved structure, can articulate some corrugated shape raised lines are set on the gib head inner side surface contacting in anticreep barb 3 and valve mechanism cover 6.For strengthening the frictional force between surface of contact.
Claims (6)
1. a loose-prevention type cylinder head cover sealing gasket, it is characterized in that: comprise sealing gasket body (1), lower seal projection (2) and anticreep barb (3), two-part up and down of sealing gasket body (1) are Embedded Division (4) and base portion (5), in the sealed groove (7) of Embedded Division (4) interlocking in valve mechanism cover (6), Embedded Division (4) is interference fit with sealed groove (7), the bottom of base portion (5) arranges lower seal projection (2) and forms sealing laminating with cylinder head, on the sidewall in base portion (5) outside, being ligule stretches out barb-shaped anticreep barb (3) is set, anticreep barb (3) forms to articulate with valve mechanism cover (6) and coordinates.
2. loose-prevention type cylinder head cover sealing gasket according to claim 1, is characterized in that: anticreep barb arranges metal frame in (3).
3. loose-prevention type cylinder head cover sealing gasket according to claim 1, is characterized in that: the top of Embedded Division (4) arranges seal convexity (8).
4. loose-prevention type cylinder head cover sealing gasket according to claim 1, is characterized in that: strengthening rib (9) is set on the sidewall of Embedded Division (4).
5. loose-prevention type cylinder head cover sealing gasket according to claim 1, is characterized in that: lower seal projection (2) is made as two and its section and is circular arc.
6. loose-prevention type cylinder head cover sealing gasket according to claim 1, is characterized in that: anticreep barb (3) and valve mechanism cover (6) articulate some corrugated shape raised lines are set on the gib head inner side surface contacting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420199667.4U CN203879647U (en) | 2014-04-23 | 2014-04-23 | Anti-disengagement cylinder head cover sealing gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420199667.4U CN203879647U (en) | 2014-04-23 | 2014-04-23 | Anti-disengagement cylinder head cover sealing gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203879647U true CN203879647U (en) | 2014-10-15 |
Family
ID=51680151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420199667.4U Expired - Fee Related CN203879647U (en) | 2014-04-23 | 2014-04-23 | Anti-disengagement cylinder head cover sealing gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203879647U (en) |
-
2014
- 2014-04-23 CN CN201420199667.4U patent/CN203879647U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 |