CN216691278U

CN216691278U - Engine and sealing assembly mechanism

Info

Publication number: CN216691278U
Application number: CN202122975557.5U
Authority: CN
Inventors: 林志成; 林健明
Original assignee: Jiangmen Dachangjiang Group Co Ltd
Current assignee: Jiangmen Dachangjiang Group Co Ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-06-07
Anticipated expiration: 2031-11-30

Abstract

The utility model relates to an engine and a sealing assembly mechanism. The cylinder head gasket comprises a cylinder head gasket body, a cylinder body, a fixing component and a cylinder head, wherein the cylinder head gasket body is laid on the end face of the cylinder body, the cylinder body is matched with a cylinder head cover, the cylinder head gasket body is located between the cylinder head and the cylinder body, one side of the cylinder head is an assembling side, the assembling side is used for being assembled with a water pump seat, a fixing part used for being fixedly matched with the fixing component is arranged on the cylinder head, when the water pump seat is arranged on the assembling side, the fixing part is located on the inner side of the water pump seat, the fixing side of the cylinder head gasket body is attached to the fixing part, and along the long edge direction of the fixing side, the fixing side is fixedly matched with the fixing part through the fixing component. The fixing part can avoid avoiding around a water pump base design concave part, so that the redundant length of the cylinder head pad fixing side is effectively reduced.

Description

Engine and sealing assembly mechanism

Technical Field

The utility model relates to the technical field of engine assembly, in particular to an engine and a sealing assembly mechanism.

Background

In the process of assembling an engine, a cylinder head and a cylinder block are installed in an aligned mode, a cylinder head gasket is additionally arranged between the cylinder head and the cylinder block in order to improve the sealing performance of the engine in the traditional engine, however, the cylinder head gasket needs to be fixed through a side bolt, the fixing part of the side bolt and the assembling part of a water pump seat are located on the same side of the cylinder head, the fixing part of the side bolt is located on the outer side of the side part of the cylinder head compared with the assembling part of the water pump seat, when the cylinder head gasket is fixed through the side bolt, the cylinder head gasket needs to be provided with a sunken part used for preventing the assembling part of the water pump seat (the cylinder head gasket can avoid the influence on the assembling part of the water pump seat through the sunken part), and after the cylinder head gasket is fixed with the side bolt, the sunken part and the lateral part of the cylinder head are poor in attaching effect, so that the cylinder head gasket leaks oil easily from the sunken part.

SUMMERY OF THE UTILITY MODEL

Accordingly, it is necessary to provide an engine and a seal assembly mechanism for solving the problems of poor adhesion and sealing effect of the cylinder head gasket and easy oil leakage.

A seal assembly mechanism. The seal assembly mechanism includes: the cylinder head gasket comprises a cylinder head gasket body, a cylinder body, a fixing component and a cylinder head, wherein the cylinder head gasket body is laid on the end face of the cylinder body, the cylinder body is matched with a cylinder head cover, the cylinder head gasket body is located between the cylinder head and the cylinder body, one side of the cylinder head is an assembling side, the assembling side is used for being assembled with a water pump seat, a fixing part used for being fixedly matched with the fixing component is arranged on the cylinder head, when the water pump seat is arranged on the assembling side, the fixing part is located on the inner side of the water pump seat, the fixing side of the cylinder head gasket body is attached to the fixing part, and along the long edge direction of the fixing side, the fixing side is fixedly matched with the fixing part through the fixing component.

The engine comprises the sealing assembly mechanism and further comprises a water pump seat, wherein the water pump seat is arranged on the assembly side.

In one embodiment, the fixing component includes a first fixing part and a second fixing part, the fixing part includes a first fixing column and a second fixing column, the first fixing column and the second fixing column are spaced from each other and disposed on one side of the mounting side close to the cylinder head gasket body, the fixing side of the cylinder head gasket body is provided with a first mounting hole for fixedly matching with the first fixing column, the fixing side of the cylinder head gasket body is provided with a second mounting hole for fixedly matching with the second fixing column, the first fixing part is fixedly matched with the first fixing column through the first mounting hole, and the second fixing part is fixedly matched with the second fixing column through the second mounting hole.

In one embodiment, the engine further comprises a camshaft wheel set, a sprocket and a water pump, the camshaft wheel set is installed in the cylinder head, the sprocket is sleeved at the driving end of the camshaft wheel set, a sprocket cavity for installing the sprocket is formed in the cylinder head, and the water pump is installed and matched with the driving end of the camshaft wheel set through the water pump seat.

In one embodiment, after the water pump seat is installed on the assembling side, the water pump seat is thickened.

In one embodiment, a plurality of positioning parts are arranged on the end surface of the cylinder head at intervals along the circumferential direction of the cylinder head, and a plurality of positioning holes which are installed in alignment with the positioning parts are arranged on the surface of the cylinder head pad body along the circumferential direction of the cylinder head pad body.

In one embodiment, the engine further comprises a third fixing piece and a fourth fixing piece, the third fixing piece and the fourth fixing piece are arranged on the assembling side of the cylinder head at intervals, a first fixing hole is formed in the third fixing piece, a second fixing hole is formed in the fourth fixing piece, both the orifice of the first fixing hole and the orifice of the second fixing hole are communicated with the outside, one end of the third fixing piece is fixedly matched with the water pump seat through the first fixing hole in sequence, and one end of the fourth fixing piece is fixedly matched with the water pump seat through the second fixing hole in sequence.

In one embodiment, after the third fixing piece is fixedly matched with the water pump seat, the other end of the third fixing piece is positioned outside the opening of the first fixing hole or the other end of the third fixing piece is positioned in the first fixing hole; and after the fourth fixing piece is fixedly matched with the water pump base, the other end of the fourth fixing piece is positioned outside the orifice of the second fixing hole or the other end of the fourth fixing piece is positioned in the second fixing hole.

In one embodiment, the water pump seat is a circular ring seat, an arc-shaped groove for accommodating the water pump seat is formed in the assembling side of the cylinder head, the first fixing hole orifice for the third fixing piece to pass through is formed in the groove wall of the arc-shaped groove, and the second fixing hole orifice for the fourth fixing piece to pass through is formed in the groove wall of the arc-shaped groove.

In one embodiment, the water pump seat is provided with a timing scale mark, and when the water pump seat is arranged in the arc-shaped groove, the timing scale mark is flush with the end horizontal reference line of the arc-shaped groove.

When the sealing assembly mechanism is used, the internal sizes of the cylinder block and the cylinder head are determined according to installation requirements, and the shape and the size of the cylinder head gasket body are determined according to the shape and the size of the end parts of the cylinder block and the cylinder head, so that the cylinder head gasket body can be aligned and attached to the end part of the cylinder head and the end part of the cylinder head. When the cylinder head cushion body is laid at the end part of the cylinder body, the cylinder head cushion body needs to be fixed, at the moment, a fixing part is additionally arranged on the cylinder head according to the length of the fixing side of the cylinder head cushion body, and meanwhile, the position of the fixing part is arranged on one side of the water pump seat close to the inside of the cylinder head. Compare in the fixed knot of traditional cylinder head pad to construct, above-mentioned fixed part can avoid the cylinder head pad body to dodge around water pump seat design depressed part, thereby effectively reduced the unnecessary length of the fixed side of cylinder head pad, simultaneously, the fixed side is when fixing through fixed subassembly and fixed part, because the interval of fixed side and fixed subassembly is reduced, so the fixed effect of fixed side and fixed part can effectively improve, the laminating effect of cylinder head pad body and cylinder block has been guaranteed, thereby the oil leak condition has been avoided the cylinder head pad body.

In the above engine, the head gasket body is laid on the end face of the cylinder block, and then the cylinder head cover is provided on the cylinder block. At the moment, a fixing part is additionally arranged on the cylinder head according to the length of the fixing side of the cylinder head gasket body, and meanwhile, the position of the fixing part is arranged on one side, close to the inside of the cylinder head, of the water pump seat. Compare in the fixed knot of traditional cylinder head pad to construct, above-mentioned fixed part can avoid dodging around water pump base design depressed part to effectively reduced the unnecessary length of the fixed side of cylinder head pad, simultaneously, the fixed side is when fixing through fixed subassembly and fixed part, because the interval of fixed side and fixed subassembly reduces, so the fixed effect of fixed side and fixed part can effectively improve, guaranteed the laminating effect of cylinder head pad body and cylinder block, thereby avoided the oil leak condition to appear in the engine.

Drawings

FIG. 1 is a schematic view of an assembly structure of a seal assembly mechanism;

FIG. 2 is a schematic structural view of a cylinder head gasket body;

FIG. 3 is a schematic view of the overall structure of the engine;

FIG. 4 is a partially exploded view of the engine from one perspective thereof;

fig. 5 is a partially exploded view of the engine from another perspective.

100. The cylinder head gasket comprises a cylinder head gasket body, 101, a first assembling hole, 102, a second assembling hole, 110, a fixing side, 120, a positioning hole, 200, a cylinder body, 201, a positioning piece, 202, an arc-shaped groove, 210, an assembling side, 220, a fixing part, 221, a first fixing column, 222, a second fixing column, 230, a chain wheel cavity, 240, a third fixing column, 250, a fourth fixing column, 300, a fixing component, 310, a first fixing piece, 320, a second fixing piece, 400, a water pump seat, 410, a timing scale mark, 500, a cylinder head, 600, a cam shaft wheel set, 700, a chain wheel, 800, a third fixing piece, 900 and a fourth fixing piece.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 1-5, in one embodiment, the seal assembly mechanism includes: the cylinder head gasket comprises a cylinder head gasket body 100, a cylinder block 200, a fixing component 300 and a cylinder head 500, wherein the cylinder head gasket body 100 is laid on the end face of the cylinder block 200, the cylinder block 200 is matched with the cylinder head 500 in a covering mode, the cylinder head gasket body 100 is located between the cylinder head 500 and the cylinder block 200, one side of the cylinder head 500 is an assembling side 210, the assembling side 210 is used for being installed and matched with a water pump seat 400, the cylinder head 500 is provided with a fixing part 220 used for being fixedly matched with the fixing component 300, when the water pump seat 400 is installed on the assembling side 210, the fixing part 220 is located on the inner side of the water pump seat 400, the fixing side 110 of the cylinder head gasket body 100 is attached to the fixing part 220, and the fixing side 110 is fixedly matched with the fixing part 220 through the fixing component 300 along the long side direction of the fixing side 110.

When the sealing assembly mechanism is used, firstly, the internal dimensions of the cylinder block 200 and the cylinder head 500 are determined according to the installation requirements, and the shape and the dimension of the cylinder head gasket body 100 are determined according to the shapes and the dimensions of the end parts of the cylinder block 200 and the cylinder head 500, so that the cylinder head gasket body 100 can be aligned and attached to the end part of the cylinder block 200 and the end part of the cylinder head 500. When the head gasket body 100 is laid on the end of the cylinder block 200, the head gasket body 100 needs to be fixed, and at this time, the fixing portion 220 is additionally provided on the cylinder head 500 according to the length of the fixing side 110 of the head gasket body 100, and the position of the fixing portion 220 is installed on the side of the water pump base 400 close to the inside of the cylinder head 500. Compared with the fixing structure of the traditional cylinder head gasket, the fixing part 220 can prevent the cylinder head gasket body 100 from avoiding around the design concave part of the water pump seat 400, so that the redundant length of the fixed side 110 of the cylinder head gasket is effectively reduced, meanwhile, when the fixed side 110 is fixed with the fixing part 220 through the fixing component 300, because the distance between the fixed side 110 and the fixing component 300 is reduced, the fixing effect of the fixed side 110 and the fixing part 220 can be effectively improved, the laminating effect of the cylinder head gasket body 100 and the cylinder block 200 is ensured, and the oil leakage condition of the cylinder head gasket body 100 is avoided.

Referring to fig. 1 to 5, in one embodiment, an engine includes the seal mounting mechanism and further includes a water pump base 400, wherein the water pump base 400 is mounted on the mounting side 210.

In the engine assembly, the head gasket body 100 is laid on the end surface of the cylinder block 200, and then the cylinder head 500 is placed on the cylinder block 200. At this time, the fixing portion 220 is additionally provided on the cylinder head 500 according to the length of the fixing side of the head gasket body 100, and the position of the fixing portion 220 is installed on the side of the water pump mount 400 near the inside of the cylinder head 500. Compared with the fixing structure of the traditional cylinder head gasket, the fixing part 220 can avoid avoiding around the concave part designed on the water pump seat 400, so that the redundant length of the fixing side 110 of the cylinder head gasket is effectively reduced, meanwhile, when the fixing side 110 is fixed with the fixing part 220 through the fixing component 300, as the distance between the fixing side 110 and the fixing component 300 is reduced, the fixing effect of the fixing side 110 and the fixing part 220 can be effectively improved, the laminating effect of the cylinder head gasket body 100 and the cylinder block 200 is ensured, and the oil leakage condition of an engine is avoided.

As shown in fig. 1 to 5, in an embodiment, the fixing assembly 300 includes a first fixing member 310 and a second fixing member 320, the fixing portion 220 includes a first fixing column 221 and a second fixing column 222, the first fixing column 221 and the second fixing column 222 are spaced apart from each other and disposed on a side of the mounting side 210 close to the cylinder head gasket body 100, a first mounting hole 101 for fixedly engaging with the first fixing member 310 is disposed on a fixing side 110 of the cylinder head gasket body 100, a second mounting hole 102 for fixedly engaging with the second fixing member 320 is disposed on the fixing side 110 of the cylinder head gasket body 100, the first fixing member 310 is fixedly engaged with the first fixing column 221 through the first mounting hole 101, and the second fixing member 320 is fixedly engaged with the second fixing column 222 through the second mounting hole 102. Specifically, the first fixing element 310 and the second fixing element 320 are bolts or screws. The corresponding number of fixing assemblies 300 and the corresponding number of fixing portions 220 are selected according to the overall length of the fixing side 110 of the head gasket body 100. For example: in this embodiment, two fixing members are selected to be fixedly matched with the two fixing columns, and the first fixing member 310, the second fixing member 320, the first fixing column 221 and the second fixing column 222 can effectively realize the attachment and fixation of the fixed side 110 of the cylinder head gasket body 100 and the cylinder head 500, that is, the whole fixed side 110 can be subjected to uniform fixing force along the long side direction of the fixed side 110, and the situation that the fixed side 110 is not tightly sealed with the assembling side 210 is avoided.

Referring to fig. 1 to 5, in an embodiment, the engine further includes a camshaft wheel set 600, a sprocket 700, and a water pump, the camshaft wheel set 600 is installed in the cylinder head 500, the sprocket 700 is sleeved at a driving end of the camshaft wheel set 600, a sprocket cavity 230 for installing the sprocket 700 is provided in the cylinder head 500, and the water pump is installed and matched with the driving end of the camshaft wheel set 600 through the water pump seat 400. After the water pump mount 400 is installed on the assembly side 210, the water pump mount 400 is thickened. Specifically, proper operation of sprocket 700 is ensured by the provision of the chain cavity. Compared with the conventional engine structure (the fixing portion 220 is located at the outer side of the assembling side 210 of the cylinder head 500), when the fixing portion 220 is additionally arranged at the inner side of the assembling side 210 of the cylinder head 500, whether the fixing portion 220 affects the space of the chain cavity needs to be considered, so that the opening range of the chain cavity is properly enlarged when the cylinder head 500 is processed, and the influence of the fixing at the inner side of the assembling side 210 of the cylinder head 500 on the space of the sprocket cavity 230 can be avoided. Further, when the conventional engine structure is used for assembling the water pump base 400, since the fixing portion 220 is located on a side of the water pump base 400 away from the chain cavity, that is, the mounting thickness (axial thickness) of the water pump base 400 can only be designed correspondingly according to the thickness of the mounting side 210 of the water pump base 400, because if the mounting thickness of the water pump base 400 is greater than the thickness of the mounting side 210 of the water pump base 400, the water pump base 400 enters the space of the sprocket cavity 230, thereby affecting the mounting or operation of the sprocket 700 in the sprocket cavity 230. The engine has the advantages that the fixing portion 220 is arranged on the inner side of the assembling side 210 of the cylinder head 500, the obstruction of the fixing portion 220 to the water pump seat 400 is eliminated, the water pump seat 400 can be thickened towards the direction away from the chain cavity according to the installation condition, or the water pump seat 400 can be thickened towards the direction close to the chain cavity according to the installation condition, and at the moment, the thickened portion of the water pump seat 400 only enters the area where the fixing portion 220 is located and cannot influence the space of the chain cavity 230. Therefore, the installation guide effect on the water pump can be effectively improved by thickening the water pump seat 400, and the installation is more convenient.

In one embodiment, in order to avoid the influence of the mounting of the cylinder head gasket body 100 on the camshaft assembly, the sprocket 700 and other components, a mounting opening corresponding to the engine assembling parts is opened on the surface of the cylinder head gasket body 100.

Referring to fig. 1 to 5, in an embodiment, a plurality of positioning members 201 are spaced on an end surface of the cylinder head 500 along a circumferential direction of the cylinder head 500, and a plurality of positioning holes 120 aligned with the positioning members 201 are disposed on a surface of the cylinder head gasket body 100 along the circumferential direction of the cylinder head gasket body 100. Specifically, the above embodiment can effectively improve the positioning and mounting effect of the cylinder head gasket body 100 and the cylinder block 200, and avoid the situation that the cylinder head gasket body 100 and the end surface of the cylinder block 200 move relatively when being fixed.

Referring to fig. 1 to 5, in an embodiment, the engine further includes a third fixing member 800 and a fourth fixing member 900, the third fixing column 240 and the fourth fixing column 250 are spaced apart from each other on the assembly side 210 of the cylinder head 500, a first fixing hole is disposed on the third fixing column 240, a second fixing hole is disposed on the fourth fixing column 250, both the orifice of the first fixing hole and the orifice of the second fixing hole are communicated with the outside, one end of the third fixing member 800 is sequentially fixedly engaged with the water pump base 400 through the first fixing hole, and one end of the fourth fixing member 900 is sequentially fixedly engaged with the water pump base 400 through the second fixing hole. Specifically, the third fixing element 800 and the fourth fixing element 900 are bolts or screws. The third fixing column 240 and the fourth fixing column 250 may be integrally formed with the cylinder head 500 or formed by splicing. The third fixing member 800 can be fixed to the water pump seat 400 at the outer side of the mounting side 210 of the cylinder head 500 by forming a first fixing hole in the third fixing post 240. And a second fixing hole is formed in the fourth fixing post 250, so that the fourth fixing member 900 can be fixed to the water pump seat 400 at the outer side of the assembly side 210 of the cylinder head 500. Therefore, the third fixing member 800 and the fourth fixing member 900 are not embedded in the cylinder head 500 in the above embodiment, that is, the camshaft assembly and the sprocket 700 can be first installed, and then the water pump mount 400 can be fixedly installed on the assembling side 210 of the cylinder head 500.

In one embodiment, after the third fixing member 800 is fixedly engaged with the water pump base 400, the other end of the third fixing member 800 is located outside the first fixing hole or the other end of the third fixing member 800 is located in the first fixing hole; after the fourth fixing member 900 is fixedly engaged with the water pump base 400, the other end of the fourth fixing member 900 is located outside the second fixing hole aperture or the other end of the fourth fixing member 900 is located in the second fixing hole. Specifically, the end of the third fixing member 800 may be selectively buried or exposed in the first fixing hole and the end of the fourth fixing member 900 may be selectively buried or exposed in the second fixing hole according to installation needs.

As shown in fig. 1 to 5, in one embodiment, the water pump seat 400 is a circular ring seat, the assembling side 210 of the cylinder head 500 is provided with an arc-shaped groove 202 for receiving the water pump seat 400, a wall of the arc-shaped groove 202 is provided with the first fixing hole orifice for the third fixing member 800 to pass through, and a wall of the arc-shaped groove 202 is provided with the second fixing hole orifice for the fourth fixing member 900 to pass through. Specifically, the arc-shaped groove 202 is formed on the assembling side 210 of the cylinder head 500, so that the attaching and fixing effects of the cylinder head 500 and the water pump seat 400 can be improved. When the water pump base 400 is fixed to the third fixing member 800 and the fourth fixing member 900, the water pump base 400 may be provided with a threaded hole fixedly engaged with the third fixing member 800 and the fourth fixing member 900. This is only one of the embodiments, for example: the third fixing element 800 and the fourth fixing element 900 may be fastening elements (a first fastening element and a second fastening element), that is, the third fixing element 800 sequentially passes through the first fixing hole and the first assembling hole 101, and a first clamping groove adapted to the first fastening element is formed on the water pump seat 400. And the fourth fixing member 900 sequentially passes through the second fixing hole and the second assembling hole 102, and a second clamping groove adapted to the second fastening member is formed in the water pump seat 400. Namely, the water pump seat 400 is clamped and fixed to the third fixture 800 and the fourth fixture 900.

Referring to fig. 1 to 5, in one embodiment, the water pump base 400 is provided with a timing scale 410, and when the water pump base 400 is installed in the arc-shaped groove 202, the timing scale 410 is flush with a horizontal reference line at the end of the arc-shaped groove 202. Specifically, the alignment of the timing scale mark 410 and the end horizontal reference line of the arc-shaped groove 202 is compared, so that the alignment installation of the water pump seat 400 in the arc-shaped groove 202 can be more effectively ensured.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A seal assembly mechanism, comprising: the cylinder head gasket comprises a cylinder head gasket body, a cylinder body, a fixing component and a cylinder head, wherein the cylinder head gasket body is laid on the end face of the cylinder body, the cylinder body is matched with a cylinder head cover, the cylinder head gasket body is located between the cylinder head and the cylinder body, one side of the cylinder head is an assembling side, the assembling side is used for being assembled with a water pump seat, a fixing part used for being fixedly matched with the fixing component is arranged on the cylinder head, when the water pump seat is arranged on the assembling side, the fixing part is located on the inner side of the water pump seat, the fixing side of the cylinder head gasket body is attached to the fixing part, and along the long edge direction of the fixing side, the fixing side is fixedly matched with the fixing part through the fixing component.

2. An engine comprising the seal assembly mechanism of claim 1, further comprising a water pump mount mounted on the assembly side.

3. The engine of claim 2, wherein the fixing assembly comprises a first fixing piece and a second fixing piece, the fixing portion comprises a first fixing column and a second fixing column, the first fixing column and the second fixing column are spaced from each other and are arranged on one side, close to the cylinder head gasket body, of the assembling side, a first assembling hole used for being fixedly matched with the first fixing piece is formed in the fixing side of the cylinder head gasket body, a second assembling hole used for being fixedly matched with the second fixing piece is formed in the fixing side of the cylinder head gasket body, the first fixing piece is fixedly matched with the first fixing column through the first assembling hole, and the second fixing piece is fixedly matched with the second fixing column through the second assembling hole.

4. The engine of claim 2, further comprising a camshaft wheel set, a sprocket and a water pump, wherein the camshaft wheel set is installed in the cylinder head, the sprocket is sleeved at the driving end of the camshaft wheel set, a sprocket cavity for installing the sprocket is formed in the cylinder head, and the water pump is installed and matched with the driving end of the camshaft wheel set through the water pump seat.

5. The engine of claim 4, characterized in that the water pump base is thickened after being installed on the assembling side.

6. The engine according to claim 2, characterized in that a plurality of positioning members are provided at intervals on the end surface of the cylinder head in the circumferential direction of the cylinder head, and a plurality of positioning holes are provided on the surface of the cylinder head gasket body in the circumferential direction of the cylinder head gasket body in alignment with the positioning members.

7. The engine according to claim 2, characterized in that the engine further comprises a third fixing piece and a fourth fixing piece, the third fixing column and the fourth fixing column are arranged on the assembling side of the cylinder head at intervals, a first fixing hole is formed in the third fixing column, a second fixing hole is formed in the fourth fixing column, both the orifice of the first fixing hole and the orifice of the second fixing hole are communicated with the outside, one end of the third fixing piece is fixedly matched with the water pump base through the first fixing hole in sequence, and one end of the fourth fixing piece is fixedly matched with the water pump base through the second fixing hole in sequence.

8. The engine of claim 7, wherein after the third fixing member is fixedly engaged with the water pump mount, the other end of the third fixing member is located outside the aperture of the first fixing hole or the other end of the third fixing member is located in the first fixing hole; and after the fourth fixing piece is fixedly matched with the water pump base, the other end of the fourth fixing piece is positioned outside the orifice of the second fixing hole or the other end of the fourth fixing piece is positioned in the second fixing hole.

9. The engine of claim 7, wherein the water pump mount is a ring mount, the mounting side of the cylinder head is provided with an arc-shaped slot for receiving the water pump mount, a wall of the arc-shaped slot is provided with the first fixing hole port for the third fixing member to pass through, and a wall of the arc-shaped slot is provided with the second fixing hole port for the fourth fixing member to pass through.

10. The engine of claim 9, characterized in that the water pump base is provided with a timing scale line which is flush with a horizontal reference line at the end of the arc-shaped groove when the water pump base is installed in the arc-shaped groove.