CN217873043U - Sealing gasket structure of cylinder head cover - Google Patents

Abstract

The utility model relates to a cylinder head cover sealing gasket structure, sealed the pad setting between cylinder head cover and cylinder cap, the location strip is installed perpendicularly to the one end of sealed pad, the location strip pastes tightly the surface of cylinder cap, be provided with a plurality of fins on the sealing pad, the fin is including setting up the last fin and the setting of sealing pad upper surface are in the lower fin of sealed pad lower surface, go up the fin with lower fin is contradicted respectively the cylinder head cover with on the cylinder cap, based on above-mentioned operation, under the condition of the unable processing slot of part cylinder head cover edge and cylinder cap casing hookup location size on the small side, satisfied the sealed requirement between cylinder head cover and the cylinder cap composition surface, reduced the manufacturing procedure of slot, reduced the roughness requirement and the roughness requirement of part fitting surface, improved sealed effect.

Description

Sealing gasket structure of cylinder head cover

Technical Field

The utility model relates to an engine cylinder head cover seals the field, more specifically, the utility model relates to a cylinder head cover seals pad structure.

Background

The cylinder head cover gasket is a gasket disposed between the cylinder head and the cylinder head cover of the engine and functions to prevent blow-by gas and working medium splashed from the camshaft bearing from leaking out between the cylinder head and the cylinder head cover. When the cylinder head cover sealing gasket fails, the performance and the normal operation of an engine (hereinafter referred to as sealing gasket) are directly influenced. The sealing gasket is made of sealing materials and used for blocking a medium of a permeation channel of a joint surface of the cylinder head cover and the cylinder head, and the sealing gasket can generate elastic deformation and elastic restoring force when receiving the contact pressure of the joint surface of the cylinder head cover and the cylinder head, so that the unevenness and the roughness of the joint surface of parts are reduced, the flow resistance of the medium is increased, and the permeation channel of a cut-off working medium realizes a sealing effect.

Because some cylinder head covers and cylinder head hookup location size are slightly littleer can't process the slot, if process the slot, there is very big deformation fracture risk just at slot position wall thickness undersize, leads to revealing of working medium to the performance and the normal work of direct influence engine.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem of the prior art, the utility model provides a sealed pad structure of cylinder head cover will seal the pad and place between cylinder head cover and cylinder cap, use the bolt to screw up cylinder head cover and cylinder cap to solved the problem that part cylinder head cover and cylinder cap hookup location size are too little can't process the slot (behind the processing slot, there is deformation fracture risk slot position wall thickness undersize), satisfied the sealed requirement between cylinder head cover and the cylinder cap composition surface.

According to an aspect of the utility model, a cylinder head cover seals up structure is provided, sealed the pad setting between cylinder head cover and cylinder cap, the location strip is installed perpendicularly to the one end of sealed pad, the location strip pastes tightly the surface of cylinder cap, be provided with a plurality of fins on the sealing pad, the fin is including setting up the last fin and the setting of sealing pad upper surface are in the lower fin of sealed pad lower surface, go up the fin with lower fin is contradicted respectively the cylinder head cover with on the cylinder cap.

Through the scheme, the positioning strip can play a good limiting role, the sealing gasket is prevented from being separated from the cylinder head cover and the cylinder cover in the process of screwing by using the bolt, rework is avoided, the sealing speed is accelerated, and the sealing effect is ensured; be provided with fin and lower fin down on the sealing gasket, not only blocked the infiltration passageway of cylinder head cover and cylinder head composition surface, avoided working medium to reveal, can also avoid processing the slot simultaneously on cylinder head cover and cylinder head, avoid appearing the risk of slot position wall thickness undersize deformation fracture.

Preferably, the upper convex rib and the lower convex rib are symmetrically arranged.

Through this scheme for sealed the pad atress at the in-process that the bolt was screwed up is more even, and sealed effect is better.

Preferably, the cross-sectional area of the rib is gradually reduced from the bottom to the top.

Through this scheme, press down at the cylinder head cover and carry out the in-process sealed, the cross section at fin top crescent can shorten the distance between cylinder head cover and the cylinder head to the at utmost, prevents that the inside working medium of cylinder from revealing, plays a better sealed effect.

Preferably, the ribs are arranged perpendicular to the surface of the gasket.

Through this scheme, because at sealed in-process, for arranging perpendicularly from top to bottom between head cover and the cylinder head, the sealed fin of filling up arranges perpendicularly with the top of filling up the pad for the direction of pressing down the normal force with the direction of arranging of fin is unanimous, avoids appearing the position emergence slope of one of them fin, thereby leads to sealed effect poor.

Preferably, the ribs are arranged obliquely to the surface of the gasket.

Through this scheme, the fin all inclines to arrange, presses down sealed in-process downwards, and the fin all inclines to one side under the effect of power to cut off working medium's infiltration passageway fast, blocked the entering of outside air and inside working medium's outflow, strengthened sealed effect.

Preferably, the top of the protruding rib is arranged towards both ends of the sealing gasket.

Through this scheme, at the in-process of pressing down, the fin all extends towards the tip of sealed pad, has cut off infiltration passageway in the at utmost, and is sealed effectual.

Preferably, both ends that are close to sealed pad are provided with the recess, the fin sets up between the recess and is close to the recess is arranged.

Through this scheme, the setting of recess for at the in-process of screwing up cylinder head cover and cylinder cap, the fin has cut off working medium's infiltration passageway to the one side slope of recess under the effect of power, has blocked the entering of outside air and inside working medium's outflow, has strengthened sealed effect.

The technical effect of the utility model lies in, this cylinder head cover seals gasket structure, under the condition that part cylinder head cover edge and cylinder head casing hookup location size are unable processing slot slightly, satisfied the sealed requirement between cylinder head cover and the cylinder head composition surface, reduced the manufacturing procedure of slot, reduced the roughness requirement and the roughness requirement of part fitting surface, improved sealed effect.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

FIG. 1 is a schematic structural view of a cylinder head cover gasket structure in the first embodiment.

Fig. 2 is a schematic structural view of a cylinder head cover gasket structure in the second embodiment.

FIG. 3 is a schematic structural view of a cylinder head cover gasket structure in the third embodiment.

Wherein like parts are designated by like reference numerals throughout the several views; the figures are not drawn to scale.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.

Example one

As shown in fig. 1, in the cylinder head cover sealing gasket structure of the present embodiment, the sealing gasket 1 is disposed between the cylinder head cover 2 and the cylinder head 3, the sealing gasket 1 is made of rubber, the positioning strip 4 is perpendicularly installed at one end of the sealing gasket 1, the positioning strip 4 is perpendicularly disposed on the lower surface of the sealing gasket 1, the positioning strip 4 is attached to the outer surface of the cylinder head 3, and the positioning strip 4 is disposed to have a good limiting effect, so as to prevent the sealing gasket 1 from being separated from the cylinder head cover 2 and the cylinder head 3 in the process of screwing up the bolt, to avoid rework again, to accelerate the sealing speed, to ensure the sealing effect, the sealing gasket 1 is provided with a plurality of ribs 5, the ribs 5 include an upper rib 51 disposed on the upper surface of the sealing gasket 1 and a lower rib 52 disposed on the lower surface of the sealing gasket 1, and the upper rib 51 and the lower rib 52 are respectively abutted to the cylinder head cover 2 and the cylinder head cover 3 when the wall thickness of the groove is too small to avoid the risk of cracking of the groove position and deformation.

Furthermore, the upper convex ribs 51 and the lower convex ribs 52 are symmetrically arranged, so that the stress of the sealing gasket 1 is more uniform in the bolt tightening process, and the sealing effect is better.

Further, the cross-sectional area of the rib 5 is gradually reduced from the bottom to the top.

In the process of sealing by pressing the cylinder head cover 2 downwards, the cross section at the top of the convex rib 5 is gradually increased, the distance between the cylinder head cover 2 and the cylinder cover 3 can be shortened to the greatest extent, the working medium inside the cylinder is prevented from leaking, and a better sealing effect is achieved.

Further, the ribs 5 are arranged perpendicular to the surface of the gasket 1.

Because in the sealing process, the cylinder head cover 2 and the cylinder head 3 are vertically arranged up and down, and the convex rib 5 of the sealing gasket 1 and the top of the sealing gasket 1 are also vertically arranged, the direction of the pressing force is consistent with the arrangement direction of the convex rib 5, and the situation that the position of one convex rib 5 is inclined is avoided, so that the sealing effect is poor.

Example two

As shown in fig. 2, in the cylinder head cover gasket structure according to the first embodiment, the ribs 5 are arranged obliquely to the surface of the gasket 1.

Based on above-mentioned operation, the equal slope of fin 5 is arranged, and at the sealed in-process of pushing down, fin 5 all inclines to one side under the effect of power to cut off working medium's infiltration passageway fast, blocked the entering of outside air and inside working medium's outflow, strengthened sealed effect.

Further, the top of fin 5 all moves towards the both ends setting of sealed pad 1, at the in-process that presses down, fin 5 all extends towards the tip of sealed pad 1, has cut off infiltration passageway in the at utmost, and is sealed effectual.

EXAMPLE III

As shown in fig. 3, in the cylinder head cover gasket structure according to the first and second embodiments, grooves 6 are provided near both ends of the gasket 1, and the ribs 5 are provided between the grooves 6 and arranged near the grooves 6.

The setting of recess 6 for at the in-process of screwing up cylinder head cover 2 and cylinder cap 3, rib 5 has cut off working medium's infiltration passageway to the lopsidedness of recess 6 under the effect of power, has blocked the entering of outside air and inside working medium's outflow, has strengthened sealed effect.

The utility model discloses the technological effect lies in, this cylinder head cover seals gasket structure, under the condition that part cylinder head cover edge and cylinder head casing hookup location size are on the small side unable processing slot, has satisfied the sealed requirement between cylinder head cover and the cylinder head composition surface, has reduced the manufacturing procedure of slot, has reduced the roughness requirement and the roughness requirement of part fitting surface, has improved sealed effect.

Although some specific embodiments of the present invention have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims (7)

1. The utility model provides a cylinder head cover seals gasket structure, sealed pad (1) sets up between cylinder head cover (2) and cylinder head (3), its characterized in that, sealed one end of filling up (1) is installed perpendicularly and is fixed a position strip (4), fixed a position strip (4) paste tightly the surface of cylinder head (3), be provided with a plurality of fins (5) on sealed pad (1), fin (5) are including setting up sealed protruding rib (51) and the setting of (1) upper surface are in sealed protruding rib (52) down of (1) lower surface, go up fin (51) with down fin (52) contradict respectively cylinder head cover (2) with on the cylinder head (3).

2. The cylinder head cover gasket structure according to claim 1, wherein the upper beads (51) and the lower beads (52) are arranged symmetrically.

3. The cylinder head cover gasket structure according to claim 2, wherein the cross-sectional area of the beads (5) is gradually reduced from bottom to top.

4. The cylinder head cover gasket structure according to claim 2, characterized in that the ribs (5) are arranged perpendicular to the surface of the gasket (1).

5. The cylinder head cover gasket structure according to claim 2, characterized in that the ribs (5) are arranged obliquely to the surface of the gasket (1).

6. The cylinder head cover gasket structure according to claim 5, characterized in that the top of the rib (5) is provided toward both ends of the gasket (1).

7. The cylinder head cover gasket arrangement according to claim 1, characterized in that grooves (6) are provided near both ends of the gasket (1), the ribs (5) being provided between the grooves (6) and arranged near the grooves (6).

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