CN217559001U - Engine cylinder head cover sealing gasket and automobile - Google Patents
Engine cylinder head cover sealing gasket and automobile Download PDFInfo
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- CN217559001U CN217559001U CN202220717744.5U CN202220717744U CN217559001U CN 217559001 U CN217559001 U CN 217559001U CN 202220717744 U CN202220717744 U CN 202220717744U CN 217559001 U CN217559001 U CN 217559001U
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- gasket body
- sealing
- falling
- engine cylinder
- cylinder head
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Abstract
The utility model provides a sealed pad of engine cylinder head cover and car, include: the sealing gasket comprises a first sealing gasket body, a second sealing gasket body and a third sealing gasket body which are sequentially connected; the end face of one side of the first sealing gasket body, which is far away from the second sealing gasket body, is provided with a sealing rib in a protruding mode, and the sealing rib is used for forming surface sealing with the lower surface of an engine cylinder cover; the width of the first gasket body is greater than that of the second gasket body, and the width of the second gasket body is greater than that of the third gasket body.
Description
Technical Field
The utility model belongs to the product new construction in the sealed field of engine, concretely relates to sealed pad of engine cylinder head cover and car.
Background
The requirement of the automobile on the engine is higher and higher, wherein the sealing product is very important, the poor sealing affects the performance of the engine and increases the oil consumption on one hand, and the poor sealing affects the appearance and cannot meet the requirement of environmental protection on the other hand, so that the satisfaction of customers is reduced invisibly. The sealing gasket of the part plays a role of sealing engine oil through the compression and rebound of the flexible rubber.
At present, the sealing gaskets of the cylinder head cover of the engine which are commonly used have two structural forms, the first is a first sealing gasket 4 with an approximately trapezoidal upper section and an approximately I-shaped lower section as shown in figure 1, and the second is a second sealing gasket 5 with an approximately I-shaped overall section as shown in figure 2.
The sealing rib assembly of the first sealing gasket 4 is good, but the structure is relatively large, the cost is high, in addition, the design requirement of the part a on the groove top of the matched cylinder cover groove 3 is high, the compression ratio is small, oil leakage is easy to occur, the compression ratio is increased, and the problem of cracking due to stress concentration is easy to occur. The second gasket 5 can save cost, but has poor assembly performance, and is easy to twist and press in assembly, so that oil leakage is easy to occur.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an engine cylinder head cover is sealed fills up and car to improve sealing reliability and assembling nature, avoid appearing the oil leak problem.
The technical scheme of the utility model is that:
the utility model provides an engine cylinder head cover is sealed to be filled up, include:
the sealing gasket comprises a first sealing gasket body, a second sealing gasket body and a third sealing gasket body which are sequentially connected;
the end face of one side of the first sealing gasket body, which is far away from the second sealing gasket body, is provided with a sealing rib in a protruding mode, and the sealing rib is used for forming surface sealing with the lower surface of an engine cylinder cover;
the width of the first gasket body is greater than that of the second gasket body, and the width of the second gasket body is greater than that of the third gasket body.
Preferably, the engine cylinder head cover gasket further comprises:
the first anti-toppling bulge extends outwards from the end part of the first sealing gasket body and is attached to the side edge of the second sealing gasket body and the side edge of the third sealing gasket body;
a second anti-tipping bulge extending outwards from the end part of the first sealing gasket body and attached to the first anti-tipping bulge;
the first anti-toppling bulges and the second anti-toppling bulges are of multiple groups.
Preferably, the engine cylinder head cover gasket further comprises:
the first anti-falling bulge extends outwards from the end part of the first sealing gasket body and is attached to the side edge of the second sealing gasket body;
the second anti-falling bulge extends outwards from the end part of the first anti-falling bulge, which is far away from the first sealing gasket body, and is attached to the side edge of the second sealing gasket body;
the first anti-falling bulge and the second anti-falling bulge are used for forming interference fit with the side surface of the assembling groove on the engine cylinder head cover;
the first anti-falling protrusion and the second anti-falling protrusion are multiple groups, the anti-falling structure formed by the first anti-falling protrusion and the second anti-falling protrusion is arranged between the two groups of anti-falling structures, and the anti-falling structure comprises the first anti-falling protrusion and the second anti-falling protrusion.
Preferably, the width of the second anti-slip protrusion is greater than that of the first anti-slip protrusion.
Preferably, the engine cylinder head cover sealing gasket is made of acrylate rubber material of a carboxylic acid type vulcanization system.
The utility model also provides an automobile, including foretell engine cylinder head cover sealed pad.
The utility model has the advantages that:
(1) The first sealing gasket body, the second sealing gasket body and the third sealing gasket body are designed to be approximately T-shaped in cross section, trapezoidal sealing ribs are arranged on the upper end face of the first sealing gasket body to form face sealing with the engine cover, the sealing area is large, and the problems of stress concentration, cracking and the like caused by sealing of the protruding ribs are solved; the second sealing gasket body and the third sealing gasket body are two sections of different sections, the first section and the second section are funnel-shaped from top to bottom in sequence, the first section is wider funnel-shaped, the second section is narrower funnel-shaped, and the lowest part of the second funnel section is matched with an assembly groove in the engine cylinder head cover. The structure has the advantages that the sealing solves the assembly problem, improves the sealing reliability and avoids the oil leakage problem.
(2) The anti-toppling bulge is arranged on the periphery of the second sealing gasket body and the periphery of the third sealing gasket body, the two anti-toppling bulges are respectively a large arc bulge and a small arc bulge, and when the anti-toppling bulge is assembled, the anti-toppling bulge can play a supporting role for the second sealing gasket body and the third sealing gasket body, so that distortion is prevented when the second sealing gasket body and the third sealing gasket body are assembled, and the oil leakage problem is avoided.
(3) The anti-falling bulge is arranged on the periphery of the second sealing gasket body and the third sealing gasket body, the width of the second anti-falling bulge on the lower part is larger than that of the first anti-falling bulge on the upper part, and the anti-falling bulge and the side surface of the matched engine cylinder cover groove form interference fit to prevent the sealing gasket from being separated from the assembly groove of the engine cylinder cover during assembly and cause leakage.
Drawings
FIG. 1 is a cross-sectional view of a prior art first engine cylinder head cover gasket;
FIG. 2 is a cross-sectional view of a second prior art engine cylinder head cover gasket;
FIG. 3 is an overall view of the cylinder head cover gasket of the present invention;
FIG. 4 is a partial enlarged view of the cylinder head cover gasket I in FIG. 3;
FIG. 5 is a partial enlarged view of a second position and a fourth position of a cylinder head cover sealing gasket in FIG. 4;
FIG. 6 is a partial enlarged view of the position of the cylinder head cover gasket III and & ltposition & gt in FIG. 4;
FIG. 7 isbase:Sub>A schematic view ofbase:Sub>A section A-A of the cylinder head cover gasket body of FIG. 3;
FIG. 8 is a cross section of a cylinder head cover gasket B-B in FIG. 3 and a schematic position of the same in FIG. 4;
FIG. 9 is a schematic view of a section C-C of the cylinder head cover gasket of FIG. 3 and at the position of FIG. 4;
FIG. 10 is an assembly view of the cylinder head, gasket, and assembly groove;
in the figure: 1-cylinder cover, 2-sealing gasket, 3-assembly groove, 21-sealing rib, 22-second sealing gasket body, 23-third sealing gasket body, 24-second anti-toppling protrusion, 25-first anti-toppling protrusion, 26-second anti-toppling protrusion, 27-first anti-toppling protrusion, 4-common first sealing gasket section and 5-common second sealing gasket section.
Detailed Description
The utility model discloses specific embodiment does:
the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 3 to 10, an embodiment of the present invention provides an engine cylinder head cover gasket, which is made of acrylate rubber material of a carboxylic acid type vulcanization system, and includes a first gasket body, a second gasket body 22 and a third gasket body 23, a cross section formed by the first gasket body, the second gasket body 22 and the third gasket body 23 is approximately T-shaped, a trapezoidal sealing rib 21 is arranged along a length direction of the first gasket body at the uppermost end of the first gasket body, the sealing rib 21 is a plane, and the sealing rib 21 is in fit sealing with a lower surface of an engine cylinder head 1; the height of the trapezoidal sealing rib 21 is 0.4mm; the second gasket body 22 and the third gasket body 23 are sequentially a funnel-shaped first section and a funnel-shaped second section from top to bottom, the first section is a wider funnel shape, and the second section is a narrower funnel shape.
As shown in fig. 5 and 8, 2 sets of anti-toppling cross sections are provided along the & position of the gasket 2, specifically, an anti-toppling structure is added to the middle lower portion of the cross section of the gasket 2, a first anti-toppling protrusion in the shape of a circular arc is added to the lower portion of the second gasket body and the third gasket, a second anti-toppling protrusion 24 is added to the periphery of the first anti-toppling protrusion 25, and the second anti-toppling protrusion 24 is arranged on the periphery of the first anti-toppling protrusion 25 and is shorter than the first anti-toppling protrusion 25 (specifically, the length of the second anti-toppling protrusion 24 in the gasket thickness direction is shorter than the length of the first anti-toppling protrusion 25). The first anti-toppling bulge 25 is in a large circular arc shape, the second anti-toppling bulge is in a small circular arc shape, the first anti-toppling bulge 25 and the second anti-toppling bulge 24 form a group of anti-toppling structures, and the distance between every two adjacent groups of anti-toppling structures is 15mm.
As shown in fig. 5 and 9, 1 set of retaining structures is provided at a desired position along the gasket 2, and a retaining structure is added to the lower middle portion of the cross section of the gasket 2, specifically, a first retaining protrusion 27 is added to the outside of the cross section of the second gasket body 22, and a second retaining protrusion 26 is added to the outside of the cross section of the third gasket body 23, and the retaining structure is composed of the first retaining protrusion 27 and the second retaining protrusion 26. The anti-falling structure in the embodiment is added between every two groups of anti-falling structures, and the distance between the position and the & position is 15mm.
The utility model discloses above-mentioned engine cylinder head cover is sealed fills up has following effect:
(1) The first sealing gasket body, the second sealing gasket body 22 and the third sealing gasket body 23 are designed to be approximately T-shaped in cross section, trapezoidal sealing ribs 21 are arranged on the upper end face of the first sealing gasket body to form face sealing with an engine cover, the sealing area is large, and the problems of stress concentration, cracking and the like caused by protruding rib sealing are solved; the second gasket body 22 and the third gasket body 23 have two different sections, which are funnel-shaped first and second sections from top to bottom in sequence, the first section is a wider funnel-shaped section, the second section is a narrower funnel-shaped section, and the lowest part of the second funnel-shaped section is matched with the assembly groove 3 on the engine cylinder head cover. The structure has the advantages that the sealing solves the assembly problem, improves the sealing reliability and avoids the oil leakage problem.
(2) The anti-toppling bulge is arranged on the periphery of the second sealing gasket body 22 and the periphery of the third sealing gasket body 23, the two anti-toppling bulges are respectively a large arc bulge and a small arc bulge, and when the anti-toppling bulge is assembled, the anti-toppling bulge can play a supporting role for the second sealing gasket body 22 and the third sealing gasket body 23, so that the second sealing gasket body 22 and the third sealing gasket body 23 are prevented from being distorted and deformed during assembly, and the oil leakage problem is avoided.
(3) The anti-falling bulge is arranged on the peripheries of the second sealing gasket body 22 and the third sealing gasket body 23, the width of the second anti-falling bulge on the lower part is larger than that of the first anti-falling bulge on the upper part, and the anti-falling bulge and the side surface of the matched engine cylinder cover groove form interference fit to prevent the problem that the sealing gasket is separated from the assembly groove of the engine cylinder cover during assembly and leakage occurs.
Claims (6)
1. An engine cylinder head cover gasket, comprising:
a first sealing gasket body, a second sealing gasket body (22) and a third sealing gasket body (23) which are connected in sequence;
the end face of one side of the first sealing gasket body, which is far away from the second sealing gasket body (22), is provided with a sealing rib in a protruding mode, and the sealing rib is used for forming surface sealing with the lower surface of an engine cylinder cover;
the width of the first gasket body is larger than that of the second gasket body (22), and the width of the second gasket body (22) is larger than that of the third gasket body (23).
2. The engine cylinder head cover gasket according to claim 1, further comprising:
a first anti-toppling protrusion (25) extending outwards from the end of the first gasket body and attached to the side edge of the second gasket body (22) and the side edge of the third gasket body (23);
a second anti-tipping boss (24) extending outwardly from an end of the first gasket body and disposed in abutment with the first anti-tipping boss (25);
the first anti-toppling bulges (25) and the second anti-toppling bulges (24) are in a plurality of groups.
3. The engine cylinder head cover gasket according to claim 1, further comprising:
a first anti-falling bulge (27) which extends outwards from the end part of the first sealing gasket body and is attached to the side edge of the second sealing gasket body (22);
a second anti-falling bulge (26) which extends outwards from the end part of the first anti-falling bulge (27) far away from the first sealing gasket body and is attached to the side edge of the second sealing gasket body (22);
the first anti-falling bulge (27) and the second anti-falling bulge (26) are used for forming interference fit with the side surface of the assembling groove (3) on the engine cylinder head cover;
the first anti-falling bulges (27) and the second anti-falling bulges (26) are multiple groups, the anti-falling structure formed by one first anti-falling bulge (27) and one second anti-falling bulge (26) is arranged between two groups of anti-falling structures, and one group of anti-falling structures comprises one first anti-falling bulge (25) and one second anti-falling bulge.
4. The engine cylinder head cover gasket according to claim 3, wherein the width of the second retaining projection (26) is larger than the width of the first retaining projection (27).
5. The engine cylinder head cover gasket according to claim 1, wherein the engine cylinder head cover gasket is made of an acrylate rubber material of a carboxylic acid type vulcanization system.
6. An automobile characterized by comprising the engine cylinder head cover gasket according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220717744.5U CN217559001U (en) | 2022-03-30 | 2022-03-30 | Engine cylinder head cover sealing gasket and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220717744.5U CN217559001U (en) | 2022-03-30 | 2022-03-30 | Engine cylinder head cover sealing gasket and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217559001U true CN217559001U (en) | 2022-10-11 |
Family
ID=83470233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220717744.5U Active CN217559001U (en) | 2022-03-30 | 2022-03-30 | Engine cylinder head cover sealing gasket and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217559001U (en) |
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2022
- 2022-03-30 CN CN202220717744.5U patent/CN217559001U/en active Active
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