CN215979584U

CN215979584U - Motorcycle, engine and thermostat packaging structure

Info

Publication number: CN215979584U
Application number: CN202122419403.8U
Authority: CN
Inventors: 林健明; 赵向阳
Original assignee: Jiangmen Dachangjiang Group Co Ltd
Current assignee: Jiangmen Dachangjiang Group Co Ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-03-08
Anticipated expiration: 2031-09-30

Abstract

The utility model relates to a packaging structure of a motorcycle, an engine and a thermostat, which only needs to process a second positioning part on the inner side wall of a mounting cavity of a sealing cover and arrange a first positioning part on the outer side wall of a thermostat assembly, thereby not influencing or interfering the flow of cooling liquid at a water outlet, not increasing the pumping power of a pump body and saving energy consumption. Simultaneously, process out second location portion on the inside wall of installation cavity and set up first location portion on the lateral wall of thermostat subassembly, only need can accomplish in the casting stage, and is simple, convenient, and the processing degree of difficulty is low, and the processing cost is low.

Description

Motorcycle, engine and thermostat packaging structure

Technical Field

The utility model relates to the technical field of transportation tools, in particular to a packaging structure of a motorcycle, an engine and a thermostat.

Background

In order to meet the cooling requirements of different working conditions, the transportation tools such as motorcycles need to use the thermostat to control and adjust the large circulation or the small circulation of the cooling liquid. Wherein, the thermostat encapsulates in the delivery port of the cylinder head of engine. In order to accurately package the thermostat, the conventional method is to arrange a corresponding positioning structure on the inner side wall of the water outlet to perform positioning fit with the thermostat, so that the flow resistance of the cooling liquid at the water outlet is increased, the pumping power of the pump body needs to be increased to ensure the flow of the cooling liquid, and the energy consumption is increased.

SUMMERY OF THE UTILITY MODEL

Accordingly, it is necessary to provide a package structure for a motorcycle, an engine and a thermostat, which can solve the problem of high energy consumption.

The technical scheme is as follows:

in one aspect, a thermostat packaging structure is provided, including:

the cylinder head is provided with a water outlet;

the outer side wall of the thermostat assembly is provided with a first positioning part, and one end of the thermostat assembly is installed in the water outlet; and

the sealing cover is connected with the cylinder head, the sealing cover is provided with an installation cavity for installing the other end of the thermostat assembly, and the inner side wall of the installation cavity is provided with a second positioning portion which is used for being matched with the first positioning portion in a positioning mode.

The thermostat packaging structure of the embodiment has the advantages that when the thermostat assembly is required to be packaged, the other end of the thermostat assembly is inserted into the installation cavity, and the first positioning portion on the outer side wall of the thermostat assembly is matched with the second positioning portion on the inner side wall of the installation cavity in a positioning mode, so that the thermostat assembly and the sealing cover are accurately preassembled. And then inserting one end of the thermostat assembly into the water outlet, and connecting the sealing cover with the cylinder head, thereby completing the packaging of the thermostat assembly. Only need process out the second location portion on the inside wall of the installation cavity of closing cap and set up first location portion on the lateral wall of thermostat subassembly can, can not lead to the fact the influence or interfere to the flow of the coolant liquid of delivery port department, need not increase the pumping power of the pump body, energy saving consumed the festival. Simultaneously, process out second location portion on the inside wall of installation cavity and set up first location portion on the lateral wall of thermostat subassembly, only need can accomplish in the casting stage, and is simple, convenient, and the processing degree of difficulty is low, and the processing cost is low.

The technical solution is further explained below:

in one embodiment, the thermostat assembly includes a thermostat body and a sealing element, the thermostat body is provided with an exhaust hole, the sealing element is sleeved on an outer side wall of the thermostat body, the outer side wall of the sealing element is provided with the first positioning portion corresponding to the exhaust hole, and the second positioning portion is corresponding to a topmost end of the cylinder head.

In one embodiment, the sealing element comprises an elastic sealing ring, and the inner side wall of the installation cavity is provided with an abutting part for abutting and matching with the side wall of the elastic sealing ring.

In one embodiment, the number of the interference parts is at least two, and the at least two interference parts are arranged around the circumference of the installation cavity.

In one embodiment, the mounting cavity has a first hole and a second hole which are communicated with each other, the diameter of the first hole is larger than the diameter of the second hole and the diameter of the water outlet, the inner side wall of the first hole is provided with the second positioning part, the sealing element is arranged in the first hole, and one side of the sealing element can be in sealing fit with the cylinder head.

In one embodiment, a connecting flange is arranged on the outer side wall of the sealing cover, the cylinder head is provided with a connecting end surface, the connecting end surface is provided with the water outlet, and the connecting flange is connected with the connecting end surface so that one side of the sealing element is in sealing fit with the connecting end surface.

In one embodiment, the connection flange is provided with a first connection hole, the connection end surface is provided with a second connection hole, and the thermostat packaging structure further comprises a fastener, wherein the fastener is tightly matched with the first connection hole and the second connection hole.

In one embodiment, the first positioning portion includes a positioning flange, and the second positioning portion is provided with a positioning groove, and the positioning flange is in positioning fit with the positioning groove.

In another aspect, an engine is provided, which includes the thermostat packaging structure.

The engine of above-mentioned embodiment, only need process out the second location portion on the inside wall of the installation cavity of closing cap and set up first location portion on the lateral wall of thermostat subassembly can, can not lead to the fact the influence or interfere to the flow of the coolant liquid of delivery port department, need not increase the pumping power of the pump body, energy saving consumed the festival. Simultaneously, process out second location portion on the inside wall of installation cavity and set up first location portion on the lateral wall of thermostat subassembly, only need can accomplish in the casting stage, and is simple, convenient, and the processing degree of difficulty is low, and the processing cost is low.

In still another aspect, a motorcycle is provided, including the engine.

The motorcycle of the embodiment can not influence or interfere the flow of the cooling liquid at the water outlet, does not need to increase the pumping power of the pump body, and saves energy consumption; meanwhile, the processing difficulty is low, and the processing cost is low.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a thermostat package structure according to an embodiment;

FIG. 2 is a schematic view of the thermostat assembly and cover assembly of the thermostat package of FIG. 1;

FIG. 3 is an exploded view of the thermostat assembly and cover of the thermostat package of FIG. 2.

Description of reference numerals:

100. the thermostat comprises a cylinder head, a 110, a water outlet, a 120, a connecting end face, a 121, a second connecting hole, a 200, a thermostat assembly, a 210, an exhaust hole, a 220, a first positioning part, a 230, a thermostat body, a 240, a sealing piece, a 300, a sealing cover, a 310, a mounting cavity, a 311, a first hole, a 312, a second hole, a 320, a second positioning part, a 330, an interference part, a 340, a connecting flange, a 341, a first connecting hole, a 400 and a fastening 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.

As shown in fig. 1 and 2, in one embodiment, a thermostat package structure is provided, which includes a cylinder head 100, a thermostat assembly 200, and a cover 300.

As shown in fig. 1, wherein the cylinder head 100 is provided with a water outlet 110. Thus, when the coolant in the cooling channel in the cylinder head 100 flows into the water outlet 110, the thermostat assembly 200 is turned off or on according to different temperature conditions, so that the coolant flows into the small circulation water pipe or the large circulation water pipe, and the cooling requirements of different working conditions are met.

As shown in fig. 1 to 3, the outer sidewall of the thermostat assembly 200 is provided with a first positioning portion 220, and one end (e.g., the left end) of the thermostat assembly 200 is installed in the water outlet 110.

As shown in fig. 1-3, wherein a closure cap 300 is coupled to the cylinder head 100 to enable packaging of the thermostat assembly 200 at the water outlet 110. Specifically, the cover 300 is provided with a mounting cavity 310 for mounting the other end (e.g., the right end) of the thermostat assembly 200. The inner side wall of the mounting cavity 310 is provided with a second positioning portion 320 for positioning and matching with the first positioning portion 220. Thus, when the thermostat assembly 200 needs to be packaged, the other end of the thermostat assembly 200 is inserted into the mounting cavity 310, and the thermostat assembly 200 and the cover 300 are accurately preassembled by using the positioning fit between the first positioning portion 220 on the outer side wall of the thermostat assembly 200 and the second positioning portion 320 on the inner side wall of the mounting cavity 310. The thermostat assembly 200 is then packaged by inserting one end of the thermostat assembly 200 into the water outlet 110 and connecting the cap 300 to the cylinder head 100.

The traditional location structure of processing out on the inside wall of delivery port 110 has not only increased the flow resistance of delivery port 110 department coolant liquid, processes out location structure moreover on the inside wall of delivery port 110, need carry out the special-shaped processing, and the processing degree of difficulty is high, and the processing cost is high. The thermostat packaging structure of the embodiment of the application only needs to process the second positioning portion 320 on the inner side wall of the mounting cavity 310 of the cover 300 and set the first positioning portion 220 on the outer side wall of the thermostat assembly 200, so that the flow of the coolant at the water outlet 110 is not affected or interfered, the pumping power of the pump body is not increased, and the energy consumption is reduced. Meanwhile, the second positioning portion 320 is processed on the inner side wall of the mounting cavity 310, and the first positioning portion 220 is arranged on the outer side wall of the thermostat assembly 200, so that the process can be completed only in a casting stage, and the process is simple, convenient, low in processing difficulty and low in processing cost.

The connection between the cylinder head 100 and the cover 300 can be realized by means of screw connection, clamping connection and the like, and the thermostat assembly 200 can be packaged in a space formed by the water outlet 110 and the mounting cavity 310. The positioning fit between the first positioning portion 220 and the second positioning portion 320 can be realized by means of insertion (insertion fit between the protrusion and the groove) or by means of clamping (clamping fit between the hook and the clamping groove), and it is only necessary to satisfy the requirement for the thermostat assembly 200 and the sealing cover 300 to realize accurate and reliable assembly connection, and the exhaust hole 210, the first positioning portion 220 and the second positioning portion 320 are correspondingly arranged.

Optionally, the first positioning portion 220 includes a positioning flange (not labeled), and the second positioning portion 320 is provided with a positioning groove (not labeled), and the positioning flange is in positioning fit with the positioning groove. In this way, the thermostat assembly 200 is inserted into the mounting cavity 310 by the positioning fit of the positioning flange and the positioning groove, so that the thermostat assembly 200 and the cover 300 are accurately and reliably assembled and connected. In addition, a positioning groove is processed on the inner side wall of the mounting cavity 310, and a positioning flange is arranged on the outer side wall of the thermostat assembly 200, so that the thermostat assembly is simple and convenient to process, and the processing difficulty is low.

In addition, the processing difficulty is further reduced. As shown in fig. 1 and 3, the thermostat assembly 200 optionally includes a thermostat body 230 and a seal 240. Specifically, the thermostat body 230 is provided with an exhaust hole 210. In this way, the air mixed in the coolant is discharged through the exhaust hole 210. The sealing member 240 is disposed on an outer sidewall of the thermostat body 230 to be connected with the thermostat body 230, the first positioning portion 220 is disposed on an outer sidewall of the sealing member 240 corresponding to the exhaust hole 210, and the second positioning portion 320 is disposed corresponding to a top end of the cylinder head 100. Thus, when the thermostat assembly 200 is required to be packaged, the other end of the thermostat body 230 is inserted into the mounting cavity 310, and the thermostat body 230 and the sealing cover 300 are accurately preassembled by using the positioning fit between the first positioning portion 220 on the outer side wall of the sealing member 240 and the second positioning portion 320 on the inner side wall of the mounting cavity 310. Then, one end of the thermostat body 230 is inserted into the water outlet 110, the second positioning portion 320 corresponds to the topmost end of the cylinder head 100, and finally the cover 300 is fixedly connected with the cylinder head 100. Since the first positioning portion 220 is disposed corresponding to the air discharge hole 210 and the first positioning portion 220 is disposed corresponding to the second positioning portion 320, the air discharge hole 210 is disposed corresponding to the topmost end of the cylinder head 100, so that air mixed in the coolant can be smoothly discharged through the air discharge hole 210. Further, the sealing performance of the assembly of the cap 300 and the cylinder head 100 can be improved by the seal 240, and leakage of the coolant can be prevented. Moreover, the thermostat body 230 may be a wax thermostat or other existing component, so that only the first positioning portion 220 needs to be machined on the sealing element 240, thereby further reducing the machining difficulty and the machining cost.

The topmost end of the cylinder head 100 refers to an end of the cylinder head 100 that is uppermost in the vertical direction. The second positioning portion 320 is disposed corresponding to the topmost end of the cylinder head 100, that is, after the cover 300 is connected to the cylinder head 100, the second positioning portion 320 faces the topmost end of the cylinder head 100, that is, the second positioning portion 320 is located right below the topmost end of the cylinder head 100, so that the exhaust hole 210 faces the topmost end of the cylinder head 100, and gas in the coolant can be smoothly exhausted through the exhaust hole 210.

The connection between the cylinder head 100 and the cover 300 is performed such that the exhaust hole 210, the first positioning portion 220, and the second positioning portion 320 are disposed corresponding to each other, so that the exhaust hole 210 faces the topmost end of the cylinder head 100.

The sealing member 240 may be a sealing ring, a sealing sleeve, or other sealing elements.

Optionally, the sealing member 240 includes an elastic sealing ring (not labeled), and as shown in fig. 3, the inner sidewall of the mounting cavity 310 is provided with an interference portion 330 for interference fit with the sidewall of the elastic sealing ring. So, the elastic sealing ring cover is established on the lateral wall of thermostat body 230, insert thermostat body 230 in installation cavity 310, when making first location portion 220 on the elastic sealing ring lateral wall and second location portion 320 on the inside wall of installation cavity 310 location fit, conflict portion 330 conflicts with elastic sealing ring's lateral wall in step and extrudes elastic sealing ring, and then makes elastic sealing ring warp, thereby make elastic sealing ring and closing cap 300 chucking each other, and then make thermostat body 230 and closing cap 300 stable, reliable even as an organic whole, avoid thermostat body 230 to take place to drop at the in-process of assembly. Wherein, the elastic sealing ring can be made of rubber or silica gel. In addition, the outer side wall of the elastic sealing ring may be provided with a positioning flange, and the thermostat body 230 and the sealing cover 300 may be stably and reliably connected into a whole by the insertion fit of the positioning flange and the positioning groove on the inner side wall of the mounting cavity 310.

At least two interference parts 330 are provided, and the at least two interference parts 330 are disposed around the circumference of the mounting cavity 310. So, receive even interference force in order to guarantee that the elastic sealing ring, can arrange two at least conflict portions 330 in the circumferencial direction of elastic sealing ring, guarantee that the elastic sealing ring takes place even deformation, can not influence the leakproofness. Preferably, the interference portions 330 are uniformly arranged around the central axis of the elastic sealing ring, so that the elastic sealing ring is uniformly stressed.

Specifically, the number of the interference portions 330 may be three, or four or more, and the specific number thereof may be flexibly designed or adjusted according to actual use requirements, and only needs to satisfy the requirement of stably and reliably connecting the thermostat body 230 and the sealing cover 300 into a whole.

The abutting portion 330 may be an abutting protrusion, an abutting convex hull, or other structures capable of applying an abutting force to the elastic sealing ring.

As shown in fig. 3, the mounting chamber 310 may optionally have a first hole 311 and a second hole 312 communicating with each other, and the diameter of the first hole 311 is larger than the diameter of the second hole 312 and the diameter of the water outlet 110. In this manner, the entire mounting cavity 310 is in the form of a stepped bore. The inner side wall of the first hole 311 is provided with a second positioning portion 320, the sealing member 240 is arranged in the first hole 311, and one side of the sealing member 240 can be in sealing fit with the cylinder head 100. In this way, the sealing member 240 is installed in the first hole 311 such that one side of the sealing member 240 is attached to the stepped surface of the installation cavity 310 (i.e., the bottom wall of the first hole 311), and then, in combination with the sealing engagement of the other side of the sealing member 240 with the cylinder head 100, the sealing performance can be ensured when the cylinder head 100 is connected with the cover 300. Meanwhile, the other end of the thermostat body 230 may be inserted into the second hole 312 after passing through the first hole 311.

As shown in fig. 1 to 3, further, the outer sidewall of the cover 300 is provided with a connecting flange 340. The cylinder head 100 has a connecting end surface 120, and the connecting end surface 120 is provided with a water outlet 110. When the sealing cover 300 is assembled and connected with the cylinder head 100, the connecting flange 340 can be connected with the connecting end surface 120, so that one side of the sealing element 240 is in sealing fit with the connecting end surface 120, the sealing cover 300 is in surface sealing fit with the cylinder head 100, and the sealing performance of the assembly of the sealing cover 300 and the cylinder head 100 is ensured.

The connection between the connection flange 340 and the connection end face 120 can be achieved by welding, screwing and the like, and only the requirement that the sealing cover 300 can be connected with the cylinder head 100 and the sealing performance of the water outlet 110 can be ensured by combining the sealing effect of the sealing element 240 is met.

As shown in fig. 1 and 3, optionally, a first connection hole 341 is disposed on the connection flange 340, and a second connection hole 121 is disposed on the connection end surface 120. The thermostat packaging structure further includes a fastener 400, and the fastener 400 is tightly fitted with the first connection hole 341 and the second connection hole 121. Thus, after the connecting flange 340 is attached to the connecting end surface 120, the first connecting hole 341 is correspondingly communicated with the second connecting hole 121, and then the fastening piece 400 is fastened and matched with the first connecting hole 341 and the second connecting hole 121, so that the cover 300 is stably and reliably assembled and connected with the cylinder head 100. Meanwhile, the sealing element 240 can be attached to the connecting end face 120 and the stepped face more tightly, and the sealing performance is better. Wherein, the first connection hole 341 and the second connection hole 121 may be insertion holes, and the fastening member 400 may be a bolt, so that the cover 300 is connected with the cylinder head 100 as a whole by the insertion fit of the bolt and the insertion holes; the first connection hole 341 and the second connection hole 121 may be screw holes, and the fastening member 400 may be a screw member such as a bolt, and the screw member is screwed with the screw holes, so that the cover 300 is integrally connected with the cylinder head 100.

In one embodiment, an engine is also provided, including the thermostat package of any of the above embodiments.

In the engine of the above embodiment, only the second positioning portion 320 needs to be machined on the inner side wall of the mounting cavity 310 of the cover 300 and the first positioning portion 220 is arranged on the outer side wall of the thermostat assembly 200, so that the flow of the coolant at the water outlet 110 is not affected or interfered, the pumping power of the pump body does not need to be increased, and the energy consumption is reduced. Meanwhile, the second positioning portion 320 is processed on the inner side wall of the mounting cavity 310, and the first positioning portion 220 is arranged on the outer side wall of the thermostat assembly 200, so that the process can be completed only in a casting stage, and the process is simple, convenient, low in processing difficulty and low in processing cost.

In one embodiment, there is also provided a motorcycle comprising the engine of any one of the above embodiments.

The motorcycle of the embodiment can not influence or interfere the flow of the cooling liquid at the water outlet 110, does not need to increase the pumping power of the pump body, and saves energy consumption; meanwhile, the processing difficulty is low, and the processing cost is low.

The engine of the above embodiment may be applied to a vehicle such as an automobile.

The "certain body" and the "certain portion" may be a part corresponding to the "member", that is, the "certain body" and the "certain portion" may be integrally formed with the other part of the "member"; the "part" can be made separately from the "other part" and then combined with the "other part" into a whole. The expressions "a certain body" and "a certain part" in the present application are only one example, and are not intended to limit the scope of the present application for reading convenience, and the technical solutions equivalent to the present application should be understood as being included in the above features and having the same functions.

It should be noted that, the components included in the "unit", "assembly", "mechanism" and "device" of the present application can also be flexibly combined, i.e., can be produced in a modularized manner according to actual needs, so as to facilitate the modularized assembly. The division of the above-mentioned components in the present application is only one example, which is convenient for reading and is not a limitation to the protection scope of the present application, and the same functions as the above-mentioned components should be understood as equivalent technical solutions in the present application.

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. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

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," "disposed on," "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. Further, when one element is considered as "fixed transmission connection" with another element, the two elements may be fixed in a detachable connection manner or in an undetachable connection manner, and power transmission can be achieved, such as sleeving, clamping, integrally-formed fixing, welding and the like, which can be achieved in the prior art, and is not cumbersome. When an element is perpendicular or nearly perpendicular to another element, it is desirable that the two elements are perpendicular, but some vertical error may exist due to manufacturing and assembly effects. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

It should also be understood that in explaining the connection relationship or the positional relationship of the elements, although not explicitly described, the connection relationship and the positional relationship are interpreted to include an error range which should be within an acceptable deviation range of a specific value determined by those skilled in the art. For example, "about," "approximately," or "substantially" may mean within one or more standard deviations, without limitation.

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

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be 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 thermostat packaging structure, comprising:

the cylinder head is provided with a water outlet;

2. The thermostat packaging structure of claim 1, wherein the thermostat assembly comprises a thermostat body and a sealing element, the thermostat body is provided with an exhaust hole, the sealing element is sleeved on an outer side wall of the thermostat body, the outer side wall of the sealing element is provided with the first positioning portion corresponding to the exhaust hole, and the second positioning portion is corresponding to the topmost end of the cylinder head.

3. The thermostat packaging structure of claim 2, wherein the sealing member comprises an elastic sealing ring, and an inner side wall of the mounting cavity is provided with an abutting portion for abutting engagement with a side wall of the elastic sealing ring.

4. The thermostat packaging structure of claim 3, wherein the number of the interference parts is at least two, and at least two of the interference parts are arranged around the circumference of the mounting cavity.

5. The thermostat packaging structure according to any one of claims 2 to 4, wherein the mounting chamber has a first hole and a second hole that communicate with each other, the diameter of the first hole is larger than the diameter of the second hole and the diameter of the water outlet, the second positioning portion is provided on an inner side wall of the first hole, the sealing member is provided in the first hole, and one side of the sealing member can be in sealing engagement with the cylinder head.

6. The thermostat packaging structure of claim 5, wherein an outer side wall of the sealing cover is provided with a connecting flange, the cylinder head is provided with a connecting end surface, the connecting end surface is provided with the water outlet, and the connecting flange is connected with the connecting end surface so that one side of the sealing element is in sealing fit with the connecting end surface.

7. The thermostat packaging structure of claim 6, wherein the connecting flange is provided with a first connecting hole, the connecting end surface is provided with a second connecting hole, and the thermostat packaging structure further comprises a fastener, wherein the fastener is tightly matched with the first connecting hole and the second connecting hole.

8. The thermostat packaging structure according to any one of claims 1 to 4, wherein the first positioning portion comprises a positioning flange, and the second positioning portion is provided with a positioning groove, and the positioning flange is in positioning fit with the positioning groove.

9. An engine comprising the thermostat package structure of any one of claims 1 to 8.

10. A motorcycle characterized by comprising the engine as claimed in claim 9.