Cylinder block structure, engine and vehicle

Abstract

The utility model discloses a cylinder body structure, engine and vehicle, cylinder body structure includes: cylinder body, the cylinder body forms crankshaft installation space, output bearing installation hole and oil guide space, the oil guide space is communicated with output bearing installation hole and crankshaft installation space, the oil guide space is suitable for guiding oil to output bearing installation hole, the oil guide space comprises an oil inlet space and an oil storage space, and the oil storage space communicates with the oil inlet space and the output bearing mounting hole. By arranging the oil inlet space and the oil storage space, when the crankshaft rotates, splashed oil can be guided into the output bearing mounting hole through the oil inlet space, and part of the oil is stored in the oil storage space, so that the oil collecting effect of the output bearing mounting hole is improved, the oil can continuously enter the output bearing mounting hole and lubricate the output bearing, and the service life of the crankshaft is prolonged. Therefore, the lubricating effect of the output bearing is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a cylinder structure, an engine with the cylinder structure and a vehicle with the engine. Background Art

[0002] In the related technology, the engine uses splash lubrication to ensure good lubrication between the friction pairs and to dissipate heat. However, due to the limitations of product structure and casting process, the splash lubrication effect of some output bearing parts is poor, which is prone to the risk of poor lubrication leading to the output bearing seizure. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a cylinder structure, when the crankshaft rotates, the splashed oil can be guided into the output bearing mounting hole through the oil guide space, thereby improving the lubrication effect of the output bearing.

[0004] The utility model further provides an engine.

[0005] The utility model further provides a vehicle.

[0006] According to the cylinder structure of the utility model, it includes: a cylinder body, the cylinder body is formed with a crankshaft installation space, an output bearing installation hole and an oil guide space, the oil guide space is connected with the output bearing installation hole and the crankshaft installation space, the oil guide space is suitable for guiding oil to the output bearing installation hole, the oil guide space includes an oil inlet space and an oil storage space, and the oil storage space is connected with the oil inlet space and the output bearing installation hole.

[0007] According to the cylinder structure of the utility model, by providing the oil inlet space and the oil storage space, when the crankshaft rotates, the splashed oil can be guided into the output bearing mounting hole through the oil inlet space, and part of the oil is stored in the oil storage space, thereby improving the oil collection effect of the output bearing mounting hole, so that the oil can continuously enter the output bearing mounting hole and lubricate the output bearing, thereby improving the lubrication effect of the output bearing.

[0008] In some embodiments of the present invention, along the axial direction of the output bearing mounting hole, the oil storage space is located between the oil inlet space and the output bearing mounting hole.

[0009] In some embodiments of the utility model, an oil storage tank is formed on the cylinder body, and the oil storage tank is adjacent to the output bearing mounting hole along the axial direction of the output bearing mounting hole. The end of the oil storage tank facing the output bearing mounting hole is open so that the oil storage tank is connected to the output bearing mounting hole, and the oil storage tank is constructed as an oil storage space.

[0010] In some embodiments of the utility model, a communicating port is formed on the bottom wall of the oil storage tank along the axial direction of the output bearing mounting hole, and the communicating port communicates with the oil storage tank and the oil inlet space.

[0011] In some embodiments of the utility model, the connecting port is formed at the upper end of the bottom wall of the groove; and / or the bottom wall of the oil inlet space is connected to the bottom wall of the connecting port, and the bottom wall of the oil inlet space is formed with a guide slope, and an angle is formed between the guide slope and the horizontal plane, and the guide slope is suitable for guiding oil to the connecting port.

[0012] In some embodiments of the present invention, a reflux space is formed in the cylinder body, and the reflux space is communicated with the oil storage space.

[0013] In some embodiments of the present invention, the bottom wall of the reflow space is configured as a reflow slope, and an angle is formed between the reflow slope and the horizontal plane.

[0014] In some embodiments of the present invention, an oil inlet is formed in the oil guide space, and the oil inlet is suitable to be opposite to the tangential direction of the crankshaft rotation.

[0015] The engine according to the utility model comprises the cylinder structure of the above embodiment.

[0016] The vehicle according to the present utility model comprises the engine of the above embodiment.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 It is a schematic diagram of the cylinder structure according to an embodiment of the utility model;

[0020] Figure 2 It is a schematic diagram of the cylinder structure according to another angle of the embodiment of the utility model;

[0021] Figure 3 It is a schematic diagram of the cylinder structure and oil flow path according to an embodiment of the utility model;

[0022] Figure 4 yes Figure 3 Sectional view at RR;

[0023] Figure 5 It is a partial diagram of the cylinder structure according to an embodiment of the utility model.

[0024] Reference numerals:

[0025] Cylinder body 1;

[0026] Crankshaft installation space 11;

[0027] Output bearing mounting hole 12;

[0028] Oil guide space 13;

[0029] Oil inlet space 131; oil storage space 132; guide slope 133; oil inlet 134;

[0030] Oil storage tank 14;

[0031] Communication port 141;

[0032] Reflux space 15;

[0033] Backflow slope 151;

[0034] Crankshaft 100. DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Reference below Figure 1-Figure 5 The cylinder structure according to the embodiment of the utility model is described.

[0040] like Figure 1 As shown, according to the cylinder structure of the utility model, it includes: a cylinder body 1, the cylinder body 1 is formed with a crankshaft mounting space 11, an output bearing mounting hole 12 and an oil guide space 13, the oil guide space 13 connects the output bearing mounting hole 12 and the crankshaft mounting space 11, the oil guide space 13 is suitable for guiding oil to the output bearing mounting hole 12, and the oil guide space 13 may include: an oil inlet space 131 and an oil storage space 132, and the oil storage space 132 connects the oil inlet space 131 and the output bearing mounting hole 12.

[0041] The cylinder structure includes a cylinder body 1, the material of the cylinder body 1 can be set to an aluminum-based (ADC12) material. The cylinder body 1 is an important component of the engine. The cylinder body 1 is a supporting frame for installing the piston, crankshaft 100 and other parts and accessories. The cylinder body 1 is formed with a crankshaft installation space 11, and the crankshaft installation space 11 is used to install the crankshaft 100 of the engine. The crankshaft 100 of the engine can rotate in the crankshaft installation space 11. During the rotation of the crankshaft 100, the crank of the crankshaft 100 stirs the oil and throws the oil to the target position along the tangent direction of the crank to achieve the lubrication effect on the engine parts.

[0042] The cylinder body 1 is also formed with an output bearing mounting hole 12, which is used to mount the output bearing, and the output shaft of the engine is mounted on the output bearing. The cylinder body 1 is also formed with an oil guide space 13, which is used to guide the oil. The oil guide space 13 is connected to the output bearing mounting hole 12 and the crankshaft mounting space 11. The oil guide space 13 can guide the splashed oil into the output bearing mounting hole 12, so that the oil can continuously lubricate the output bearing, thereby improving the lubrication effect of the output bearing.

[0043] The oil guide space 13 may include an oil inlet space 131 and an oil storage space 132. The oil inlet space 131 may guide the oil, and the oil storage space 132 may store the oil. The oil storage space 132 connects the oil inlet space 131 and the output bearing mounting hole 12. When the engine is working, the oil inlet space 131 continuously guides the oil splashed from the crankshaft 100, so that the oil can continuously enter the oil storage space 132. Part of the oil can be stored in the oil storage space 132, thereby improving the stability of oil lubrication.

[0044] Specifically, the cylinder structure includes a cylinder body 1, which is formed with a crankshaft installation space 11 and an output bearing installation hole 12. The crankshaft 100 and the output bearing of the engine can be installed in the crankshaft installation space 11 and the output bearing installation hole 12 respectively. The cylinder body 1 is also formed with an oil guide space 13, which is connected with the output bearing installation hole 12 and the crankshaft installation space 11. When the engine is working, the crankshaft 100 rotates and throws the oil to the oil guide space 13 along the tangent direction of the crank. The oil guide space 13 continuously guides the oil splashed from the crankshaft 100, and part of the oil is stored in the oil storage space 132, so that the oil can continuously enter the output bearing installation hole 12 and lubricate the output bearing.

[0045] Therefore, by providing the oil inlet space 131 and the oil storage space 132, when the crankshaft 100 rotates, the splashed oil can be guided into the output bearing mounting hole 12 through the oil inlet space 131, and part of the oil is stored in the oil storage space 132, thereby improving the oil collection effect of the output bearing mounting hole 12, so that the oil can continuously enter the output bearing mounting hole 12 and continuously lubricate the output bearing, thereby improving the lubrication effect of the output bearing and reducing the risk of the output bearing seizing due to poor lubrication of the output bearing.

[0046] In some embodiments of the present invention, Figure 1 and Figure 3 As shown, along the axial direction of the output bearing mounting hole 12 , the oil storage space 132 is located between the oil inlet space 131 and the output bearing mounting hole 12 .

[0047] Among them, along the axial direction of the output bearing mounting hole 12, the oil storage space 132 is arranged between the oil inlet space 131 and the output bearing mounting hole 12, so that the oil in the oil storage space 132 can flow into the output bearing mounting hole 12 and lubricate the output bearing, thereby improving the lubrication effect of the output bearing and reducing the risk of the output bearing seizing due to poor lubrication of the output bearing.

[0048] In some embodiments of the present invention, Figure 1As shown, the cylinder body 1 is formed with an oil storage groove 14, and along the axial direction of the output bearing mounting hole 12, the oil storage groove 14 is adjacent to the output bearing mounting hole 12, and the end of the oil storage groove 14 facing the output bearing mounting hole 12 is open so that the oil storage groove 14 is connected with the output bearing mounting hole 12, and the oil storage groove 14 is constructed as an oil storage space 132.

[0049] The cylinder body 1 may be formed with an oil storage tank 14, which is adjacent to the output bearing mounting hole 12 along the axial direction of the output bearing mounting hole 12, and the end of the oil storage tank 14 facing the output bearing mounting hole 12 is open, so that the oil storage tank 14 is connected with the output bearing mounting hole 12, so that the oil in the oil storage tank 14 can flow into the output bearing mounting hole 12 and lubricate the output bearing, and the oil storage tank 14 is configured as an oil storage space 132. When the output bearing is installed in the output bearing mounting hole 12, one side end wall of the output bearing corresponds to the open end of the oil storage tank 14, and the oil lubricates the output bearing from the open end of the oil storage tank 14, thereby reducing the risk of the output bearing seizing due to poor lubrication of the output bearing, thereby improving the working stability of the engine.

[0050] Furthermore, the oil stored in the oil storage tank 14 is greater than the amount of lubricating oil required by the output bearing, which is beneficial to further reduce the risk of the output bearing seizing due to poor lubrication of the output bearing, thereby improving the working stability of the engine.

[0051] In some embodiments of the present invention, Figure 1-Figure 3 As shown, along the axial direction of the output bearing mounting hole 12 , a communicating port 141 is formed on the bottom wall of the oil storage tank 14 , and the communicating port 141 communicates the oil storage tank 14 with the oil inlet space 131 .

[0052] In which, along the axial direction of the output bearing mounting hole 12, a connecting port 141 may be formed on the bottom wall of the oil storage tank 14, and oil may pass through the connecting port 141. The connecting port 141 may connect the oil storage tank 14 and the oil inlet space 131, so that the oil may flow from the oil inlet space 131 into the oil storage tank 14 through the connecting port 141.

[0053] In some embodiments of the present invention, Figure 1 As shown, the connecting port 141 is formed at the upper end of the bottom wall of the groove, and / or the bottom wall of the oil inlet space 131 is connected to the bottom wall of the connecting port 141, and the bottom wall of the oil inlet space 131 is formed with a guide slope 133, and the guide slope 133 forms an angle with the horizontal plane, and the guide slope 133 is suitable for guiding oil to the connecting port 141.

[0054] As some embodiments of the present application, the connecting port 141 can be formed at a position near the upper end of the bottom wall of the groove, so that the oil can flow into the oil storage tank 14 from the connecting port 141 under the action of gravity, thereby achieving the effect of storing the oil in the oil storage tank 14, reducing the risk of oil storage failure caused by the oil in the oil storage tank 14 flowing out of the connecting port 141, and improving the oil storage reliability of the oil storage tank 14.

[0055] As some embodiments of the present application, the bottom wall of the oil inlet space 131 is connected to the bottom wall of the connecting port 141, so that the oil in the oil inlet space 131 can flow into the oil storage tank 14 from the connecting port 141. The bottom wall of the oil inlet space 131 is formed with a guide slope 133, which can guide the oil, which is conducive to the oil flowing into the oil storage tank 14 along the guide slope 133. An angle α is formed between the guide slope 133 and the horizontal plane, and the angle α between the guide slope 133 and the horizontal plane can satisfy the relationship of 30°≤α≤80°. For example, the angle α between the guide slope 133 and the horizontal plane can be set to 30°, 35°, 45° or 80°, etc., to reduce the risk of the oil not being able to flow smoothly into the oil storage tank 14 due to too small an angle α, and to avoid the oil from forming a vortex in the oil inlet space 131 due to too large an angle α, so that the oil quickly flows into the oil storage tank 14 along the guide slope 133. The guide slope 133 is suitable for guiding the oil to the connecting port 141 , so that the oil can be guided to the connecting port 141 through the guide slope 133 and flow into the oil storage tank 14 from the connecting port 141 under the action of gravity, which is conducive to further storing the oil in the oil storage tank 14 .

[0056] As some embodiments of the present application, the connecting port 141 can be formed at a position close to the upper end of the bottom wall of the groove, so that the oil can flow from the connecting port 141 into the oil storage tank 14 under the action of gravity, so as to achieve the effect of storing the oil in the oil storage tank 14, reduce the risk of oil storage failure caused by the oil in the oil storage tank 14 flowing out from the connecting port 141, and improve the oil storage reliability of the oil storage tank 14, and the bottom wall of the oil inlet space 131 is connected to the bottom wall of the connecting port 141, so that the oil in the oil inlet space 131 can flow from the connecting port 141 into the oil storage tank 14. The bottom wall of the oil inlet space 131 is formed with a guide slope 133, which can guide the oil, which is conducive to the oil flowing into the oil storage tank 14 along the guide slope 133. An angle α is formed between the guide slope 133 and the horizontal plane, and the angle α between the guide slope 133 and the horizontal plane can satisfy the relationship 30°≤α≤80°. For example, the angle α between the guide slope 133 and the horizontal plane can be set to 30°, 35°, 45° or 80°, etc., to reduce the risk that the oil cannot flow smoothly into the oil storage tank 14 due to too small an angle α, and to avoid the oil from forming a vortex in the oil inlet space 131 due to too large an angle α, so that the oil flows quickly into the oil storage tank 14 along the guide slope 133. The guide slope 133 is suitable for guiding the oil to the connecting port 141, so that the oil can be guided to the connecting port 141 through the guide slope 133, and flow into the oil storage tank 14 from the connecting port 141 under the action of gravity, which is conducive to further achieving the effect of storing the oil in the oil storage tank 14.

[0057] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the cylinder body 1 is formed with a return space 15 , and the return space 15 is communicated with the oil storage space 132 .

[0058] Among them, the cylinder body 1 can be equipped with an oil pan, and the oil pan can store oil. The cylinder body 1 can be formed with a reflux space 15, and the reflux space 15 is used to divert excess oil out of the oil storage space 132, and the oil can flow back to the oil pan through the reflux space 15. The reflux space 15 is connected with the oil storage space 132. When there is too much oil in the oil storage space 132, the oil can overflow from the connecting port 141 and be diverted into the oil pan through the reflux space 15, so as to collect the excess oil, which is conducive to keeping the oil in the oil storage space 132 at a suitable capacity at all times, so as to reliably lubricate the output bearing. It should be noted that the reflux space 15 can be a separate space formed by the cylinder body 1, and the reflux space 15 can also be defined by the bottom wall of the connecting port 141. The reflux space 15 can be connected with the oil inlet space 131.

[0059] In some embodiments of the present invention, Figure 2 As shown, the bottom wall of the reflow space 15 is configured as a reflow slope 151 , and an angle is formed between the reflow slope 151 and the horizontal plane.

[0060] Among them, the bottom wall of the reflux space 15 can be constructed as a reflux slope 151, and the oil can flow back to the oil pan along the reflux slope 151. In order to facilitate the reflux of the oil, the reflux slope 151 can have a certain inclination angle with the horizontal plane, and an angle β can be formed between the reflux slope 151 and the horizontal plane. The angle β between the reflux slope 151 and the horizontal plane can satisfy the relationship 3°≤β≤5°. For example, the angle β between the guide slope 133 and the horizontal plane can be set to 3°, 4° or 5°, which reduces the risk of the oil not being able to flow back smoothly due to the angle β being too small, and can also reduce the oil flow rate being too fast due to the angle β being too large, thereby reducing the impact of the oil on the oil pan. The reflux slope 151 is suitable for guiding the oil to the oil pan, so that the oil can be guided to the oil pan through the reflux slope 151, which is conducive to achieving the effect of returning excess oil into the oil pan.

[0061] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the oil guide space 13 is formed with an oil inlet 134 , and the oil inlet 134 is adapted to be opposite to the tangential direction of the rotation of the crankshaft 100 .

[0062] The oil guide space 13 may be formed with an oil inlet 134, and oil may enter the oil guide space 13 through the oil inlet 134, and enter the oil storage tank 14 along the oil guide space 13, thereby achieving the effect of lubricating the output bearing. The oil inlet 134 is suitable for being opposite to the tangential direction of the rotation of the crankshaft 100. Since the oil thrown out by the rotation of the crankshaft 100 splashes along the tangential direction of the rotation of the crankshaft 100, setting the oil inlet 134 in the tangential direction of the rotation of the crankshaft 100 can facilitate the oil to accurately splash to the oil inlet 134, thereby achieving the effect of the oil entering the oil guide space 13 through the oil inlet 134, and entering the oil storage tank 14 along the oil guide space 13, thereby lubricating the output bearing.

[0063] The engine according to the utility model comprises the cylinder structure of the above embodiment.

[0064] The cylinder body 1 is formed with a crankshaft installation space 11 and an output bearing installation hole 12. The crankshaft 100 rotates in the crankshaft installation space 11 and throws oil along the tangential direction of the crankshaft 100. The oil splashes to the oil inlet 134 and enters the oil storage tank 14 along the oil guide space 13 to achieve the effect of lubricating the output bearing. When there is too much oil in the oil storage tank 14, the oil can overflow from the connecting port 141 and be guided into the oil pan through the reflux space 15 to collect the excess oil, which is conducive to keeping the oil in the oil storage space 132 at an appropriate level at all times, so that oil collection, lubrication and reflux can be carried out simultaneously. By providing the oil inlet space 131 and the oil storage space 132, when the crankshaft 100 rotates, the splashed oil can be guided into the output bearing mounting hole 12 through the oil inlet space 131, and part of the oil is stored in the oil storage space 132, thereby improving the oil collection effect of the output bearing mounting hole 12, so that the oil can continuously enter the output bearing mounting hole 12 and continuously lubricate the output bearing, thereby improving the lubrication effect of the output bearing and reducing the risk of the output bearing seizing due to poor lubrication of the output bearing.

[0065] According to the vehicle of the utility model, including the engine of the above embodiment, by providing the oil inlet space 131 and the oil storage space 132, when the crankshaft 100 rotates, the splashed oil can be guided into the output bearing mounting hole 12 through the oil inlet space 131, and part of the oil is stored in the oil storage space 132, thereby improving the oil collection effect of the output bearing mounting hole 12, so that the oil can continuously enter the output bearing mounting hole 12 and continuously lubricate the output bearing, thereby improving the lubrication effect of the output bearing and reducing the risk of the output bearing seizing due to poor lubrication of the output bearing.

[0066] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0067] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A cylinder structure, characterized in that: include: A cylinder body (1), wherein the cylinder body (1) is formed with a crankshaft installation space (11), an output bearing installation hole (12) and an oil guide space (13), wherein the oil guide space (13) is connected to the output bearing installation hole (12) and the crankshaft installation space (11), and the oil guide space (13) is suitable for guiding oil to the output bearing installation hole (12), and the oil guide space (13) includes an oil inlet space (131) and an oil storage space (132), and the oil storage space (132) is connected to the oil inlet space (131) and the output bearing installation hole (12).

2. The cylinder structure according to claim 1, characterized in that: Along the axial direction of the output bearing mounting hole (12), the oil storage space (132) is located between the oil inlet space (131) and the output bearing mounting hole (12).

3. The cylinder structure according to claim 2, characterized in that: The cylinder body (1) is formed with an oil storage groove (14), and along the axial direction of the output bearing mounting hole (12), the oil storage groove (14) is adjacent to the output bearing mounting hole (12), and the end of the oil storage groove (14) facing the output bearing mounting hole (12) is open so that the oil storage groove (14) is connected with the output bearing mounting hole (12), and the oil storage groove (14) is configured as the oil storage space (132).

4. The cylinder structure according to claim 3, characterized in that: A communicating port (141) is formed on the bottom wall of the oil storage tank (14) along the axial direction of the output bearing mounting hole (12), and the communicating port (141) communicates the oil storage tank (14) and the oil inlet space (131).

5. The cylinder structure according to claim 4, characterized in that: The communication port (141) is formed at the upper end of the bottom wall of the groove; And / or, the bottom wall of the oil inlet space (131) is connected to the bottom wall of the connecting port (141), the bottom wall of the oil inlet space (131) is formed with a guide slope (133), an angle is formed between the guide slope (133) and a horizontal plane, and the guide slope (133) is suitable for guiding oil to the connecting port (141).

6. The cylinder structure according to any one of claims 1 to 5, characterized in that: The cylinder body (1) is formed with a return space (15), and the return space (15) is communicated with the oil storage space (132).

7. The cylinder structure according to claim 6, characterized in that: The bottom wall of the reflow space (15) is configured as a reflow slope (151), and an angle is formed between the reflow slope (151) and a horizontal plane.

8. The cylinder structure according to any one of claims 1 to 5, characterized in that: The oil guide space (13) is formed with an oil inlet (134), and the oil inlet (134) is suitable for being opposite to the tangential direction of the crankshaft rotation.

9. An engine, characterized in that: It comprises a cylinder structure according to any one of claims 1-8.

10. A vehicle, characterized in that: Comprising an engine according to claim 9.

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