CN214660535U

CN214660535U - Engine cylinder cover sealing structure

Info

Publication number: CN214660535U
Application number: CN202023029321.4U
Authority: CN
Inventors: 黄佳龙
Original assignee: Deruibao China Composite Material Co ltd
Current assignee: Deruibao China Composite Material Co ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-11-09
Anticipated expiration: 2030-12-16

Abstract

The utility model relates to an engine cylinder lid seal structure, including cylinder cap and sealing washer, the sealing washer is detained and is established extremely the cylinder cap bottom, the cylinder cap bottom surface is provided with the sand grip, the cross section of sand grip is the trapezium structure, the lateral surface of cylinder cap is provided with the fixed slot, the top surface of sealing washer be provided with sand grip assorted props the fluting, it is "V" shape groove to prop the fluting, prop the fluting degree of depth and be not less than half of sealing washer thickness, the outside of sealing washer upwards buckles and forms connecting portion, be provided with on the connecting portion with fixed slot assorted fixed strip. Utility model's an usage is, the sealing washer is placed in the cylinder cap bottom and is compressed tightly, makes the sand grip insert to prop in the fluting, and its both sides can the perk that makes progress guarantees that the fixed strip can firmly insert in the fixed slot and not fall off to improve the fastness that sealing washer and cylinder cap bottom are connected greatly, helped improving assembly efficiency.

Description

Engine cylinder cover sealing structure

Technical Field

The utility model relates to a sealing device field, more specifically, the utility model relates to an engine cylinder lid seal structure.

Background

In an engine of an automobile, a gasket is required to be installed between a cylinder body and a cylinder head of the engine to prevent air leakage or lubricating oil leakage when the engine works.

In the engine assembling process, usually in the recess of the sealed pad assembly setting cylinder cap, detain the cylinder cap again and establish to the cylinder body on, however because do not fix between sealed pad and the cylinder cap, lead to easily sealed the coming off of filling up, be unfavorable for improving assembly efficiency, for preventing sealed the coming off of filling up, engine cylinder head cover sealing gasket structure in the utility model patent that patent number is CN209228486 has appeared, through the anticreep barb of sealed pad both sides, hook to the protruding strip on the lid to reach the effect of fixed seal pad. However, because the rigidity of the anti-drop barbs is limited, the two anti-drop barbs are difficult to keep absolutely stable, and can still drop or shift due to carrying or vibration in the assembling process, and the effect is poor.

Therefore, a new sealing structure is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an aim at solve the sealed difficult fixed problem of pad in assembly process of current engine cylinder lid.

According to the utility model discloses an aspect provides an engine cylinder lid seal structure, including cylinder cap and sealing washer, the sealing washer detain establish extremely the cylinder cap bottom, the cylinder cap bottom surface is provided with the sand grip, the cross section of sand grip is the trapezium structure, the lateral surface of cylinder cap is provided with the fixed slot, the top surface of sealing washer be provided with sand grip assorted props the fluting, it is "V" shape groove to prop the fluting, prop grooved degree of depth and be not less than half of sealing washer thickness, the outside of sealing washer upwards buckles and forms connecting portion, be provided with on the connecting portion with fixed slot assorted fixed strip.

Through this scheme, the sealing washer is placed in the cylinder cap bottom and is compressed tightly, makes the sand grip insert and props the fluting, owing to prop grooved V-arrangement structure to its degree of depth is greater than half of sealing washer thickness, its both sides can the perk that makes progress, thereby one end compresses tightly to the cylinder cap bottom, connecting portion one end then towards the side application of force of cylinder cap, guarantees that the fixed strip can firmly insert in the fixed slot and not fall off, thereby has improved the fastness that sealing washer and cylinder cap bottom are connected greatly, helps improving assembly efficiency.

Preferably, a positioning groove is formed in the bottom surface of the cylinder cover and is located on the inner side of the convex strip; and the top of the sealing ring is provided with a positioning strip matched with the positioning groove.

Through this scheme, the constant head tank can further improve the fastness of connecting to can play the effect of location in the assembling process, guarantee that the sand grip can accurately insert and prop in the fluting.

Preferably, the top surface of the sealing ring is provided with at least one top sealing strip, and the bottom surface of the sealing ring is provided with at least one bottom sealing strip.

Through this scheme, improve the sealed effect of sealing washer.

Preferably, the number of the top sealing strips is two, and the two top sealing strips are respectively arranged on two sides of the supporting groove.

Through this scheme, seal the both sides that prop the fluting, avoid lubricating oil etc. to get into to prop messenger's sand grip roll-off and reduce fixed effect in the fluting.

Preferably, one of the top sealing strips is disposed on the positioning strip.

Through this scheme, can reduce or avoid lubricating oil to get into in the constant head tank and influence location or fixed effect.

Preferably, the bottom sealing strip is arranged right below the opening groove, and the width of the bottom sealing strip is not less than the maximum width of the opening groove.

Through this scheme, the bottom sealing strip not only can improve sealed effect, can also strengthen strutting groove department, avoids strutting the groove department and strutting the fracture damage because of dragging.

The utility model discloses a technological effect lies in, this seal structure is simple, and convenient to use has improved the fastness when sealing washer is installed to the cylinder cap bottom greatly under the prerequisite of having guaranteed sealed effect, helps improving assembly efficiency.

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 the engine cylinder head seal structure schematic diagram of the embodiment of the utility model.

Fig. 2 is a schematic cross-sectional structure view of a cylinder head in the engine cylinder head sealing structure of fig. 1.

Fig. 3 is a schematic cross-sectional structure view of a seal ring in the engine head seal structure of fig. 1.

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, further discussion thereof is not required in subsequent figures.

Examples

As shown in fig. 1 to 3, the engine cylinder head sealing structure in this embodiment includes a cylinder head 1100 and a sealing ring 1200, the sealing ring 1200 is fastened to the bottom of the cylinder head 1100, a protruding strip 1110 is disposed on the bottom surface of the cylinder head 1100, a cross section of the protruding strip 1110 is a trapezoid structure, a fixing groove 1120 is disposed on the outer side surface of the cylinder head 1100, an opening groove 1210 matched with the protruding strip 1110 is disposed on the top surface of the sealing ring 1200, the opening groove 1210 is a V-shaped groove, the depth of the opening groove 1210 is not less than half of the thickness of the sealing ring 1200, the outer side of the sealing ring 1200 is bent upward to form a connecting portion 1220, and a fixing strip 1221 matched with the fixing groove 1120 is disposed on the connecting portion 1220.

Through this scheme of this embodiment, sealing washer 1200 is placed in cylinder cap 1100 bottom and is compressed tightly, make sand grip 1110 insert and prop in the groove 1210, owing to prop the V-arrangement structure that props groove 1210, and its degree of depth is greater than half of sealing washer 1200 thickness, its both sides can upwards perk, thereby one end compresses tightly to cylinder cap 1100 bottom, connecting portion 1220 one end is then towards the side application of force of cylinder cap 1100, guarantee that fixed strip 1221 can firmly insert in fixed slot 1120 and not fall off, thereby the fastness of being connected bottom sealing washer 1200 and cylinder cap 1100 has been improved greatly, help improving assembly efficiency.

The width of the convex strip 1110 is larger as the convex strip is farther away from the cylinder cover 1100, so that the convex strip can be expanded to the deepest part of the expansion groove 1210, and the two sides of the convex strip are guaranteed to be tilted.

In this embodiment or other embodiments, a positioning groove 1130 is disposed on the bottom surface of the cylinder cover 1100, and the positioning groove 1130 is located inside the protruding strip 1110; the top of the sealing ring 1200 is provided with a positioning bar 1230 matched with the positioning groove 1130. The constant head tank 1130 can further improve the firmness of connection to can play the effect of location in the assembling process, guarantee that the sand grip 1110 can accurately insert and strut in the groove 1210.

In this or other embodiments, the top surface of the seal ring 1200 is provided with at least one top seal 1201, and the bottom surface of the seal ring 1200 is provided with at least one bottom seal 1202. The sealing effect of the seal ring 1200 is improved.

In this embodiment or other embodiments, two top sealing strips 1201 are provided, and the two top sealing strips 1201 are respectively provided on two sides of the expanding groove 1210 to seal the two sides of the expanding groove 1210, so as to prevent lubricating oil and the like from entering the expanding groove 1210 to slide the convex strip 1110 out and reduce the fixing effect.

In this embodiment or other embodiments, one of the top sealing strips 1201 is disposed on the positioning strip 1230, so that the lubricating oil can be prevented or reduced from entering the positioning groove 1130 to affect the positioning or fixing effect.

In this embodiment or other embodiments, the bottom sealing strip 1202 is disposed under the opening groove 1210, the width of the bottom sealing strip 1202 is not less than the maximum width of the opening groove 1210, and the bottom sealing strip 1202 not only can improve the sealing effect, but also can reinforce the opening groove 1210 to prevent the opening groove 1210 from being broken due to pulling.

The technical effect of this embodiment lies in, this seal structure is simple, and convenient to use has improved the fastness when sealing washer is installed to cylinder cap bottom greatly under the prerequisite of having guaranteed sealed effect, helps improving assembly efficiency.

Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for purposes of illustration and is 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

1. The utility model provides an engine cylinder lid seal structure, includes cylinder cap and sealing washer, the sealing washer is detained and is established to cylinder cap bottom, its characterized in that, the cylinder cap bottom surface is provided with the sand grip, the cross section of sand grip is the trapezium structure, the lateral surface of cylinder cap is provided with the fixed slot, the top surface of sealing washer be provided with sand grip assorted props the fluting, it is "V" shape groove to prop the fluting, prop grooved degree of depth and be not less than half of sealing washer thickness, the outside of sealing washer upwards buckles and forms connecting portion, be provided with on the connecting portion with fixed slot assorted fixed strip.

2. The engine cylinder cover sealing structure according to claim 1, wherein the bottom surface of the cylinder cover is provided with a positioning groove which is located inside the raised line; and the top of the sealing ring is provided with a positioning strip matched with the positioning groove.

3. The engine cylinder head seal structure of claim 2, wherein the top surface of the seal ring is provided with at least one top seal strip, and the bottom surface of the seal ring is provided with at least one bottom seal strip.

4. The engine cylinder head sealing structure according to claim 3, characterized in that two top sealing strips are provided, and the two top sealing strips are respectively provided on both sides of the stay groove.

5. The engine head sealing structure according to claim 4, wherein one of the top seal strips is provided on the positioning strip.

6. The engine cylinder head sealing structure according to claim 3, characterized in that the bottom sealing strip is arranged right below the expanding groove, and the width of the bottom sealing strip is not less than the maximum width of the expanding groove.