CN215804856U - Engine cylinder cover sealing ring assembly - Google Patents

Abstract

The utility model discloses a sealing ring assembly of an engine cylinder cover, which comprises a sealing inner ring and a sealing outer ring, wherein the sealing inner ring is arranged between the plane of an inner hole of a spark plug of the cylinder cover and the plane of the inner hole of the spark plug of the cylinder head, the sealing outer ring is arranged between the plane of the edge of the cylinder cover and the plane of the edge of the cylinder head, the sealing inner ring is arranged in the sealing outer ring, and the left end and the right end of the connecting part are respectively connected with the sealing inner ring and the sealing outer ring. The utility model can make the sealing inner ring and the sealing outer ring into an integrated structure, prevent the condition of missing assembly or falling off, has good sealing effect, can reduce the maintenance frequency of an engine, only needs one pair of dies during processing, improves the injection molding efficiency and reduces the processing cost.

Description

Engine cylinder cover sealing ring assembly

Technical Field

The utility model relates to a motorcycle engine, in particular to a sealing ring component of an engine cylinder cover.

Background

In order to make the cylinder head structure of the motorcycle engine compact and convenient to process, the engine cylinder head and the engine cylinder head are separately processed and then assembled, and during assembly, sealing is needed between the edge plane of the cylinder head and the edge plane of the cylinder head, and between the inner hole plane of the spark plug of the cylinder head and the inner hole plane of the spark plug of the cylinder head, and sealing can be carried out by coating a sealant, a paper pad or a split type rubber cylinder head sealing ring at present. Because the engine cylinder head is one of the main key parts in the engine, the engine cylinder head needs to repeatedly bear heat and explosion pressure generated by fuel oil combustion and vibration generated by the work of the engine, and the pressure and the vibration generated by the combustion and the explosion combustion can be transmitted to the cylinder head cover through a sealing glue, a paper pad or a split type rubber cylinder cover sealing ring. However, the coated sealant or paper pad can only be used once, and has poor high temperature resistance, and once the paper pad is disassembled, the paper pad cannot be effectively sealed without being coated again or replaced by a new one, so that the poor impression of product quality problems caused by air leakage, oil leakage, abnormal sound and the like is generated for users. The rubber sealing ring made of the fluororubber material can resist high temperature, can effectively insulate heat and absorb shock due to certain thickness, and is better than a coating sealant or a paper pad in the aspect of cyclic durable use, but the traditional split rubber sealing ring adopts two rubber sealing rings to respectively seal between a cylinder cover edge plane and a cylinder head edge plane and between a cylinder cover spark plug inner hole plane and a cylinder head spark plug inner hole plane, and the sealing ring between the cylinder cover spark plug inner hole plane and the cylinder head spark plug inner hole plane is frequently subjected to assembly leakage or easy falling, so that the phenomena of air leakage, oil leakage and abnormal sound caused by difficult discovery or assembly failure are caused.

Disclosure of Invention

In view of the above, an object of the present invention is to overcome the defects in the prior art, and provide a seal ring assembly for an engine cylinder head, which can make a seal inner ring and a seal outer ring into an integrated structure, prevent the occurrence of missing assembly or dropping, has a good sealing effect, can reduce the maintenance frequency of an engine, and only needs one pair of molds during processing, thereby improving the injection molding efficiency and reducing the processing cost.

The utility model discloses a sealing ring assembly of an engine cylinder cover, which comprises a sealing inner ring and a sealing outer ring, wherein the sealing inner ring is arranged between the plane of an inner hole of a spark plug of the cylinder cover and the plane of an inner hole of a spark plug of a cylinder head, the sealing outer ring is arranged between the plane of the edge of the cylinder cover and the plane of the edge of the cylinder head, the sealing inner ring is arranged in the sealing outer ring, and the left end and the right end of the connecting part are respectively connected with the sealing inner ring and the sealing outer ring.

Further, the left end of the connecting portion is connected with the outer ring surface of the sealing inner ring, and the right end of the connecting portion is connected with the inner ring surface of the sealing outer ring.

Further, the connecting portion is inclined forward from left to right.

Furthermore, the right side of the sealing outer ring is provided with two sealing plugs protruding downwards.

Furthermore, sealed end cap includes the end cap colloid and embedded in the inside supporting framework of end cap colloid.

Furthermore, the plug colloid is provided with a sealing surface which can be in conformal fit with the processing technical hole of the cylinder head camshaft, and the sealing surface is provided with a plurality of sealing convex parts.

Further, a plurality of the sealing convex parts are arranged at intervals from left to right.

The utility model has the beneficial effects that: through connecting into a whole with sealed inner circle and sealed outer lane through connecting portion, prevent to appear leaking the condition that assembles or drop, it is sealed effectual, can reduce engine maintenance frequency, reduce customer complains to only need a pair mould during processing, improve the efficiency of moulding plastics, reduce the processing cost.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a portion of FIG. 1 taken along line A;

FIG. 3 is a schematic cross-sectional view B-B of FIG. 2;

FIG. 4 is an enlarged view of a portion of FIG. 3 at C;

FIG. 5 is a schematic illustration of a structure of an engine head adapted to the present invention;

fig. 6 is a schematic view of a structure of an engine cylinder head adapted to the present invention.

Description of reference numerals: 1-engine cylinder head sealing ring component, 11-sealing inner ring, 12-sealing outer ring, 13-connecting part, 14-sealing plug, 141-plug colloid, 1411-sealing surface, 1412-sealing bulge, 142-supporting framework, 2-engine cylinder head, 21-cylinder head body, 22-cylinder head spark plug inner hole plane, 221-cylinder head inner ring groove, 23-cylinder head edge plane, 231-cylinder head outer ring groove, 24-mounting groove, 3-engine cylinder head, 31-cylinder head body, 32-cylinder head spark plug inner hole plane, 33-cylinder head edge plane and 34-cylinder head camshaft processing process hole.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1-6, an engine cylinder head sealing ring assembly 1 in the present embodiment includes a sealing inner ring 11 and a sealing outer ring 12, where the sealing inner ring 11 is configured to be disposed between a cylinder head spark plug inner hole plane 22 and a cylinder head spark plug inner hole plane 32, the sealing outer ring 12 is configured to be disposed between a cylinder head edge plane 23 and a cylinder head edge plane 33, and further includes a connecting portion 13, the sealing inner ring 11 is disposed in the sealing outer ring 12, and left and right ends of the connecting portion 13 are respectively connected to the sealing inner ring 11 and the sealing outer ring 12; in this embodiment, two sealing plugs 14 protruding downwards are disposed on the right side of the sealing outer ring 12. The engine cylinder cover 2 comprises a cylinder cover body 21, a cylinder cover spark plug inner hole plane 22 and a cylinder cover edge plane 23, the cylinder cover spark plug inner hole plane 22 is arranged on the cylinder cover body 21, the cylinder cover sealing ring component 1 can be used for being installed on the engine cylinder cover, a cylinder cover inner ring groove 221 used for installing the sealing inner ring 11 is arranged on the cylinder cover spark plug inner hole plane 22, a cylinder cover outer ring groove 231 used for installing the sealing inner ring 11 is arranged on the cylinder cover edge plane 23, and an installation groove 24 used for installing the connecting portion 13 is arranged between the cylinder cover spark plug inner hole plane 22 and the cylinder cover edge plane 23. The engine cylinder head 3 comprises a cylinder head body 31, a cylinder head spark plug inner hole plane 32 arranged on the cylinder head body 31 and a cylinder head edge plane 33 arranged on the cylinder head body 31, wherein a semicircular cylinder head camshaft processing process hole 34 used for processing a camshaft hole is formed in the cylinder head edge plane 33. Firstly, connecting an engine cylinder cover sealing ring component 1 with an engine cylinder cover 2, installing a sealing inner ring 11 on a cylinder cover inner ring groove 221, installing a connecting part 13 on an installation groove 24, installing a sealing outer ring 12 on a cylinder cover outer ring groove 231, then connecting the engine cylinder cover 2 with an engine cylinder head 3, wherein the position of a sealing plug 14 corresponds to a cylinder head camshaft processing process hole 34 during connection, the position of a cylinder cover edge plane 23 corresponds to a cylinder head edge plane 33, and the position of a cylinder cover spark plug inner hole plane 22 corresponds to a cylinder head spark plug inner hole plane 32. The sealing inner ring 11 and the sealing outer ring 12 are connected into a whole through the connecting part 13, the condition of missing assembly or falling off is prevented, the sealing effect is good, the maintenance frequency of an engine can be reduced, customer complaints are reduced, only one pair of dies is needed during machining, the injection molding efficiency is improved, and the machining cost is reduced.

In the present embodiment, as shown in fig. 1, the left end of the connecting portion 13 is connected to the outer ring surface of the seal inner ring 11, and the right end of the connecting portion 13 is connected to the inner ring surface of the seal outer ring 12. The seal inner ring 11 is arranged in the seal outer ring 12, the outer ring surface of the seal inner ring 11 refers to the surface of the seal inner ring 11 facing the side of the seal outer ring 12, and the inner ring surface of the seal outer ring 12 refers to the surface of the seal outer ring 12 facing the side of the seal inner ring 11.

In the present embodiment, as shown in fig. 1, the connecting portion 13 is inclined forward from left to right. The sealing inner ring 11, the sealing outer ring 12 and the connecting portion 13 are made of rubber, preferably fluororubber, the connecting portion 13 plays a connecting role and does not have a sealing role, so that the requirement on the position accuracy of the connecting portion 13 is low, the connecting portion 13 is inclined forwards from left to right to ensure that the connecting portion 13 has a sufficient length, the relative positions of the sealing inner ring 11 and the sealing outer ring 12 can be adjusted, the requirement on the position accuracy of the sealing inner ring 11 and the sealing outer ring 12 is reduced, and the situation that the sealing inner ring 11 and the sealing outer ring 12 cannot be installed simultaneously due to machining errors is prevented.

In this embodiment, as shown in fig. 2 to 3, the sealing plug 14 includes a plug colloid 141 and a supporting skeleton 142 embedded inside the plug colloid 141. The cylinder head edge plane 33 is provided with a cylinder head camshaft processing process hole 34 left by processing a camshaft hole, and the sealing plug 14 is used for plugging the cylinder head camshaft processing process hole 34, so that the strength of the sealing plug 14 is ensured by embedding a support framework 142 in a plug colloid 141, and the sealing performance is improved.

In this embodiment, as shown in fig. 3 to 4, a sealing surface 1411 that can be fitted to the cylinder head camshaft machining process hole 34 in a form-fitting manner is provided on the plug colloid 141, and a plurality of sealing protrusions 1412 are provided on the sealing surface 1411; the plurality of sealing bosses 1412 are spaced from left to right. In this embodiment, the number of the sealing convex parts 1412 is 3, the cylinder head camshaft machining process hole 34 is semicircular, the sealing surface 1411 is fitted with the cylinder head camshaft machining process hole 34 in a form-fitting manner, and the sealing convex parts 1412 are extruded and deformed and tightly abut against the cylinder head camshaft machining process hole 34, so that the sealing performance is good; since the through direction of the cylinder head camshaft machining hole 34 is along the left-right direction, the 3 seal bosses 1412 are provided at intervals from left to right, and the sealing performance can be further improved.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims (7)

1. The utility model provides an engine cylinder head sealing washer subassembly, is including sealed inner circle (11) and sealed outer lane (12), sealed inner circle (11) are used for setting up between cylinder head spark plug hole plane (22) and cylinder head spark plug hole plane (32), sealed outer lane (12) are used for setting up between cylinder head edge plane (23) and cylinder head edge plane (33), its characterized in that: the sealing device is characterized by further comprising a connecting part (13), the sealing inner ring (11) is arranged in the sealing outer ring (12), and the left end and the right end of the connecting part (13) are respectively connected with the sealing inner ring (11) and the sealing outer ring (12).

2. The engine head gasket assembly of claim 1, wherein: the left end of the connecting part (13) is connected with the outer ring surface of the sealing inner ring (11), and the right end of the connecting part (13) is connected with the inner ring surface of the sealing outer ring (12).

3. The engine head gasket assembly of claim 2, wherein: the connecting portion (13) is inclined forward from left to right.

4. The engine head gasket assembly of claim 1, wherein: two sealing plugs (14) protruding downwards are arranged on the right side of the sealing outer ring (12).

5. The engine head gasket assembly of claim 4, wherein: the sealing plug (14) comprises a plug colloid (141) and a supporting framework (142) embedded in the plug colloid (141).

6. The engine head gasket assembly of claim 5, wherein: the plug colloid (141) is provided with a sealing surface (1411) which can be in conformal fit with the cylinder head camshaft machining process hole (34), and the sealing surface (1411) is provided with a plurality of sealing protrusions (1412).

7. The engine head gasket assembly of claim 6, wherein: the sealing protrusions (1412) are arranged at intervals from left to right.

Images