Cylinder cover drainage structure and engine

Abstract

The utility model discloses a cylinder cover drainage structure and an engine, and relates to the technical field of engines. The cylinder cover drainage structure comprises a cylinder cover, a drainage piece and a communicating piece. The cylinder cover comprises a cylinder cover body and a water outlet end. The drainage piece comprises a main pipe and a water inlet end, and the water inlet end is communicated with the main pipe; the communicating piece comprises a flexible pipe and a connecting pipe, the connecting pipe comprises a pipe body, the flexible pipe is communicated with the water inlet end and the pipe body, and the pipe body is further communicated with the water outlet end. The cylinder cover drainage structure is low in installation precision, good in sealing performance and not prone to water leakage.

Description

Technical Field

[0001] This application relates to the technical field of engines, and particularly to a cylinder head drainage structure and an engine. Background Art

[0002] Currently, due to factors such as performance and structure, more and more engines arrange fuel injectors, spark plugs, and ignition coils at the top of the cylinder head. The accumulated water at the top of the cylinder head usually evaporates naturally or with the help of the engine's heat. If the accumulated water at the top of the cylinder head cannot be drained in time, it will inevitably damage components such as fuel injectors, spark plugs, and ignition coils over time, and drainage needs to be carried out in a timely manner.

[0003] The existing connection method of the cylinder head water cooling system is as follows: The water outlet of the cylinder head is connected to a plug member, and the plug member is connected to the cylinder liner outlet pipe interface. The concentric accuracy requirement for the water inlet of the cylinder head and the center of the water inlet pipe is high, and water leakage is likely to occur. Utility Model Content

[0004] In view of this, this application provides a cylinder head drainage structure and an engine, aiming to solve one of the technical problems in the prior art.

[0005] To achieve the above object, the technical solution adopted in this application is as follows:

[0006] In the first aspect, an embodiment of this application provides a cylinder head drainage structure, including:

[0007] A cylinder head, including a cylinder head body and a water outlet end;

[0008] A drainage member, including a main pipe and a water inlet end, the water inlet end being communicated with the main pipe;

[0009] A connecting member, including a flexible pipe and a connecting pipe, the connecting pipe including a pipe body, the flexible pipe being communicated with the pipe body, and the pipe body also being communicated with the water outlet end.

[0010] In one embodiment of the first aspect, the connecting pipe further includes a flange, the flange being disposed around the circumference of the pipe body, and the flange separating the flexible pipe and the water outlet end.

[0011] In one embodiment of the first aspect, the connecting pipe further includes a gasket, the gasket being disposed on a side of the flange away from the flexible pipe;

[0012] A first groove is provided at a port of the water outlet end close to the flexible pipe, and the gasket is disposed in the first groove.

[0013] In one embodiment of the first aspect, the gasket is made of any one of copper, aluminum, and stainless steel materials.

[0014] In one embodiment of the first aspect, the connecting pipe further includes at least one sealing ring, and the sealing ring is sleeved on the side of the washer away from the flange.

[0015] At least one second groove is provided in the water outlet end, and one sealing ring is correspondingly arranged in one second groove.

[0016] In one embodiment of the first aspect, the flange divides the pipe body into a first connecting section and a second connecting section. The first connecting section is communicated with the flexible pipe. The second connecting section includes a smooth section and a processed section, and the washer and the sealing ring are sleeved on the smooth section.

[0017] In one embodiment of the first aspect, an external thread is provided on the processed section, and an internal thread is provided at a position corresponding to the external thread in the water outlet end.

[0018] In one embodiment of the first aspect, the number of the water outlet ends is multiple, and the multiple water outlet ends are arranged at intervals.

[0019] Correspondingly, the number of the water inlet ends and the connecting members is multiple, and one connecting member correspondingly communicates one water inlet end and one water outlet end.

[0020] In one embodiment of the first aspect, the cylinder head drainage structure further includes two fastening heads. The flexible pipe is sleeved on the outside of the water outlet end or the pipe body, and the fastening heads clamp the flexible pipe and the water outlet end, or the fastening heads clamp the flexible pipe and the pipe body.

[0021] In a second aspect, an embodiment of the present application further provides an engine, including the cylinder head drainage structure in any of the above embodiments.

[0022] Compared with the prior art, the beneficial effects of the present application are as follows: The present application provides a cylinder head drainage structure, including a cylinder head, a drainage member and a connecting member. The cylinder head includes a cylinder head body and a water outlet end. The drainage member includes a main pipe and a water inlet end, and the water inlet end is communicated with the main pipe. The connecting member includes a flexible pipe and a connecting pipe. The connecting pipe includes a pipe body. The flexible pipe communicates the water inlet end and the pipe body, and the pipe body is also communicated with the water outlet end. By providing a flexible pipe to communicate the pipe body and the water inlet end, the requirement for the concentricity of the communication between the water inlet end and the water outlet end is reduced, and water leakage is prevented. In addition, even if the engine unit vibrates and causes the water inlet end and the water outlet end to be non-concentric, it is not easy to leak water. Description of the Drawings

[0023] To more clearly illustrate the technical solutions of the embodiments of the present application, the accompanying drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0024] Figure 1 Shows a schematic structural diagram of the cylinder head drainage structure in some embodiments of the present application;

[0025] Figure 2 Shows an exploded structural diagram of the cylinder head drainage structure in some embodiments of the present application;

[0026] Figure 3 Shows a schematic structural diagram of the connection between the pipe body and the flange in some embodiments of the present application.

[0027] Main element symbol description: 100 - cylinder head drainage structure; 110 - cylinder head; 111 - cylinder head body; 112 - water outlet end; 120 - drainage part; 121 - main pipe; 122 - water inlet end; 130 - connecting part; 131 - flexible pipe; 132 - connecting pipe; 1321 - pipe body; 1322 - flange; 1323 - gasket; 1121 - first groove; 1324 - sealing ring; 1122 - second groove; 1325 - first connecting section; 1326 - second connecting section; 13261 - smooth section; 13262 - machining section. Detailed description of the specific embodiments

[0028] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and should not be construed as limiting the present application.

[0029] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present application.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality of" means two or more unless otherwise specifically defined.

[0031] In this application, unless otherwise clearly stipulated and defined, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] In this application, unless otherwise clearly stipulated and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0033] The existing cylinder head drainage method is as follows: a plug member is used to connect the water outlet of the cylinder head and the drain pipe. Such a connection method has the following disadvantages:

[0034] 1. The concentric accuracy requirement between the water outlet of the cylinder head and the center of the drain pipe is high, and water leakage will occur if the installation is not in place; 2. The vibration during the operation of the engine unit will affect the concentricity of the connection between the water outlet, the plug member and the drain pipe, and it is easy to leak water; 3. The plug member is made of rubber. In a low-temperature environment, the hardness of the rubber part increases, the sealing performance of the plug member becomes poor, and it is easy to leak water.

[0035] In view of the above problems, as Figure 1 shown, an embodiment of this application provides a cylinder head drainage structure 100, which is mainly used to drain the water of the engine cylinder head 110 in a timely manner.

[0036] The cylinder head 110 drainage structure includes a cylinder head 110, a drainage member 120 and a connecting member 130.

[0037] Among them, the cylinder head 110 includes a cylinder head body 111 and a water outlet end 112 provided on the cylinder head body 111.

[0038] As Figure 1 and Figure 2 shown, the water outlet end 112 is in the shape of a hollow cylinder and is made of a metal material.

[0039] The drain member 120 includes a main pipe 121 and a water inlet end 122, and the water inlet end 122 communicates with the main pipe 121.

[0040] In this embodiment, the main pipe 121 is a metal pipe, the second water outlet pipe is a port formed by extending from the wall of the main pipe 121, and the main pipe 121 and the water inlet end 122 are integrally formed. In other embodiments, the water inlet end 122 is made of a metal material and the main pipe 121 is made of a plastic material.

[0041] The connecting member 130 includes a flexible pipe 131 and a connecting pipe 132. The connecting pipe 132 includes a pipe body 1321. The flexible pipe 131 communicates the water inlet end 122 and the pipe body 1321, and the pipe body 1321 also communicates with the water outlet end 112. By providing the flexible pipe 131 to communicate the pipe body 1321 and the water inlet end 122, the requirement for concentricity of the connection between the water inlet end 122 and the water outlet end 112 is reduced, preventing water leakage. Additionally, even if the engine unit vibrates and causes the water inlet end 122 and the water outlet end 112 to be non-concentric, it is not easy for water to leak.

[0042] In some embodiments, as Figure 2 and Figure 3 shown, the connecting pipe 132 further includes a flange 1322. The flange 1322 is disposed around the circumference of the pipe body 1321, and the flange 1322 separates the flexible pipe 131 and the water outlet end 112. In this way, interference between the flexible pipe 131 and the water outlet end 112 during the vibration of the engine unit is avoided, the connection strength between the flexible pipe 131 and the pipe body 1321 is reduced, and water leakage is prevented.

[0043] The pipe body 1321 and the flange 1322 are integrally provided, improving the sealing performance and structural strength of the connecting member 130.

[0044] In some embodiments, as Figure 1 and Figure 2 shown, the connecting pipe 132 further includes a gasket 1323. The gasket 1323 is disposed on the side of the flange 1322 away from the flexible pipe 131, and a first groove 1121 is provided at the port of the water outlet end 112 close to the flexible pipe 131, and the gasket 1323 is disposed in the first groove 1121.

[0045] The pipe body 1321 is in a straight line or a curved shape. One end of the pipe body 1321 communicates with the water inlet end 122 through the flexible pipe 131, and the other end is directly inserted into the water outlet end 112 to communicate with the water outlet end 112. In this way, a plug member can be not used, reducing costs.

[0046] The sealing performance between the pipe body 1321 and the water outlet end 112 is also improved by using the gasket 1323, and the connection can be made more stable, preventing loosening and water leakage due to the vibration of the engine unit.

[0047] In some embodiments, the gasket 1323 is a metal gasket 1323.

[0048] Optionally, it is made of any one of copper, aluminum, and stainless steel materials to increase the connection strength.

[0049] In some embodiments, the connecting pipe 132 further includes at least one sealing ring 1324. The sealing ring 1324 is sleeved on the side of the gasket 1323 away from the flange 1322. At least one second groove 1122 is provided in the water outlet end 112, and one sealing ring 1324 is correspondingly arranged in one second groove 1122. By providing the sealing ring 1324, the sealing performance between the pipe body 1321 and the water outlet end 112 is improved, and the connection can be made more stable, preventing loosening and water leakage due to the vibration of the engine unit.

[0050] In this embodiment, the number of the sealing rings 1324 is one. In other embodiments, the number of the sealing rings 1324 can be set according to requirements without special limitations.

[0051] In some embodiments, the flange 1322 divides the pipe body 1321 into a first connection section 1325 and a second connection section 1326. The first connection section 1325 is communicated with the flexible pipe 131, and the second connection section 1326 is directly communicated with the water outlet end 112. In this way, without changing the structures of the original water outlet end 112 and the water inlet end 122, the practicability of the connecting member 130 is stronger.

[0052] The second connection section 1326 includes a smooth section 13261 and a processed section 13262. The gasket 1323 and the sealing ring 1324 are sleeved on the smooth section 13261. In this way, a double-sealing structure of the gasket 1323 and the sealing ring 1324 is arranged at the port of the water outlet end 112, making the connection between the pipe body 1321 and the water outlet end 112 more stable, not easily loosening, extending the service life, and improving the sealing performance to prevent water leakage.

[0053] In some embodiments, an external thread is provided on the processed section 13262, and an internal thread corresponding to the external thread is provided in the water outlet end 112, making the connection between the pipe body 1321 and the water outlet end 112 more efficient and stable. At the same time, in cooperation with the gasket 1323 and the sealing ring 1324, a stable connection is formed between the second connection section 1326 and the water outlet end 112.

[0054] On this basis, one end of the flexible pipe 131 is sleeved at the first connection section 1325, which reduces the docking accuracy between the drainage member 120 and the water outlet end 112. Additionally, the length of the flexible pipe 131 can be set according to requirements to adjust the distance between the main pipe 121 and the cylinder head 110, making the connection structure more flexible and applicable to more scenarios.

[0055] In some embodiments, the number of water outlet ends 112 is multiple, and the multiple water outlet ends 112 are arranged at intervals; correspondingly, the number of water inlet ends 122 and the communicating members 130 is multiple, and one communicating member 130 corresponds to communicating one water inlet end 122 and one water outlet end 112, improving the drainage efficiency and the drainage effect.

[0056] In this embodiment, the drainage structure of the cylinder head 110 further includes two fastening heads (not shown in the figure). The flexible pipe 131 is sleeved outside the water outlet end 112 or the pipe body 1321, and the fastening head clamps the flexible pipe 131 and the water outlet end 112, or the fastening head clamps the flexible pipe 131 and the pipe body 1321.

[0057] In other embodiments, a rigid connection head can also be provided at the end of the flexible pipe 131, and the rigid connection head is used to form a stable connection with the water outlet end 112 and / or the first connection section 1325.

[0058] The rigid connection head is integrally provided with the flexible pipe 131 to enhance the sealing performance.

[0059] The present application also provides an engine including the drainage structure of the cylinder head 110 in any of the above embodiments. Therefore, it has all the beneficial effects of the drainage structure of the cylinder head 110 in any of the above embodiments, and will not be elaborated here one by one.

[0060] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0061] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A cylinder head drainage structure, characterized in that, Comprising: A cylinder head, including a cylinder head body and a water outlet end; A drainage member, including a main pipe and a water inlet end, the water inlet end communicating with the main pipe; A connecting member, including a flexible pipe and a connecting pipe, the connecting pipe including a pipe body, the flexible pipe communicating the water inlet end and the pipe body, and the pipe body also communicating with the water outlet end.

2. The cylinder head drainage structure according to claim 1, characterized in that The connecting pipe further includes a flange, the flange being disposed around the circumference of the pipe body, the flange separating the flexible pipe and the water outlet end.

3. The cylinder head drainage structure according to claim 2, characterized in that, The connecting pipe further includes a gasket, the gasket being disposed on a side of the flange away from the flexible pipe; A first groove is provided at a port of the water outlet end close to the flexible pipe, and the gasket is disposed in the first groove.

4. The cylinder head drainage structure according to claim 3, characterized in that, The gasket is made of any one of copper, aluminum, and stainless steel materials.

5. The cylinder head drainage structure according to claim 3, characterized in that, The connecting pipe further includes at least one sealing ring, the sealing ring being sleeved on a side of the gasket away from the flange; At least one second groove is provided in the water outlet end, and one sealing ring is correspondingly disposed in one second groove.

6. The cylinder head drainage structure according to claim 5, characterized in that The flange divides the pipe body into a first connecting section and a second connecting section, the first connecting section communicating with the flexible pipe, the second connecting section including a smooth section and a machined section, and the gasket and the sealing ring being sleeved on the smooth section.

7. The cylinder head drainage structure according to claim 6, characterized in that External threads are provided on the machined section, and internal threads are provided at positions in the water outlet end corresponding to the external threads.

8. The drain structure of the cylinder head according to any one of claims 1 to 7, characterized in that The number of the water outlet ends is multiple, and the multiple water outlet ends are spaced apart; Correspondingly, the number of the water inlet ends and the connecting members is multiple, and one connecting member correspondingly communicates one water inlet end and one water outlet end.

9. The drain structure of the cylinder head according to any one of claims 1 to 7, characterized in that The cylinder head drainage structure further includes two fastening heads, the flexible pipe being sleeved on the outside of the water outlet end or the pipe body, and the fastening heads clamping the flexible pipe and the water outlet end, or the fastening heads clamping the flexible pipe and the pipe body.

10. An engine, characterized in that, Comprising the cylinder head drainage structure according to any one of claims 1 to 9.

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