Connecting structure, oil taking device and engine

Abstract

The utility model discloses a connecting structure, an oil taking device and an engine, and relates to the technical field of engines, the connecting structure comprises a connecting body, the connecting body is provided with a first connecting part and a second connecting part, and the first connecting part and the second connecting part are located at the two ends of the connecting body in the preset direction correspondingly; the connecting body is further provided with a first oil passing hole and a second oil passing hole, the first oil passing hole and the second oil passing hole both extend in the preset direction, the first oil passing hole at least partially penetrates through the first connecting part, the second oil passing hole at least partially penetrates through the second connecting part, and the first oil passing hole communicates with the second oil passing hole. And the aperture of the first oil passing hole is smaller than that of the second oil passing hole. According to the connecting structure, the possibility that engine oil is splashed out in the oil taking process can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of engine technology, and more specifically, to a connection structure, an oil extraction device, and an engine. Background Technology

[0002] Due to the specific nature of their operation, gas generator engines require continuous, long-term operation. However, after prolonged operation, the engine oil can deteriorate and become unusable due to various reasons. Therefore, it is necessary to periodically or regularly take a suitable amount of engine oil from the running engine for testing to monitor its condition and ensure safe engine operation within a controllable range. Traditionally, oil is taken from the engine's oil filler port using a quick-connect fitting. During engine operation, the oil pressure and temperature within the lubrication lines are very high. Therefore, during oil extraction, hot, high-pressure oil can easily spray out from the fitting, posing a safety hazard to the operator and increasing the risk of burns. Utility Model Content

[0003] In view of this, the purpose of this application is to overcome the shortcomings of the prior art and provide a connection structure that can reduce the possibility of oil splashing out during the oil extraction process.

[0004] This application also provides an oil extraction device.

[0005] This application also provides an engine.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0007] Firstly, this application provides a connection structure having a preset direction, the connection structure comprising:

[0008] The connecting body has a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion being located at opposite ends of the connecting body along the preset direction. The connecting body also has a first oil passage hole and a second oil passage hole, both of which extend along the preset direction. The first oil passage hole at least partially penetrates the first connecting portion, and the second oil passage hole at least partially penetrates the second connecting portion. The first oil passage hole and the second oil passage hole are in communication, and the diameter of the first oil passage hole is smaller than the diameter of the second oil passage hole.

[0009] In an optional embodiment, the diameter of the first oil passage is D1 and the diameter of the second oil passage is D2, satisfying: 5≤D2 / D1≤7.

[0010] In an optional implementation, the following condition must be met: 1mm ≤ D1 ≤ 2mm.

[0011] In an optional embodiment, the depth of the first oil passage along the preset direction is L1, satisfying: 10≤L1 / D1≤20.

[0012] In an optional embodiment, the depth of the second oil passage along the preset direction is L2, satisfying: 2≤L2 / D2≤10.

[0013] In an optional embodiment, the connection structure further includes a handheld portion, which is connected to the connection body and surrounds the connection body circumferentially, located between the first connection portion and the second connection portion, and the handheld portion protrudes radially from the connection body.

[0014] In an optional embodiment, the connecting body is further provided with a relief groove, which is formed on the surface of the connecting body and recessed toward the interior of the connecting body in the radial direction of the connecting body, and the relief groove extends circumferentially along the connecting body, and the relief groove is located between the handle and the first connecting part.

[0015] In an optional embodiment, both the first connecting portion and the second connecting portion have external threads.

[0016] Secondly, this application provides an oil extraction device, comprising:

[0017] Oil extraction connector;

[0018] As described in any of the foregoing embodiments, the second connecting portion of the connecting structure is connected to the oil tap.

[0019] Thirdly, this application provides an engine, comprising:

[0020] Lubrication system;

[0021] The oil extraction device as described in the foregoing embodiments is connected to the lubricating oil system via a connection structure.

[0022] The connection structure of this application has the following advantages:

[0023] In the connection structure of this application, the first connecting part of the connecting body is used to connect with the oil inlet of the engine's lubrication system, and the second connecting part of the connecting body is used to connect with the oil inlet connector of the oil inlet device. This connection structure enables the connection between the engine's lubrication system and the oil inlet connector of the oil inlet device, facilitating oil intake from the engine. During this process, since the first oil passage hole at least partially penetrates the first connecting part, and the second oil passage hole at least partially penetrates the second connecting part, and the first and second oil passage holes are connected, engine oil can enter the oil inlet connector through the first and second oil passage holes. Simultaneously, since the diameter of the first oil passage hole is smaller than that of the second oil passage hole, the flow rate of engine oil flowing through the first oil passage hole is less than that flowing through the second oil passage hole. Thus, when engine oil flows sequentially through the first and second oil passage holes, the oil can be buffered within the second oil passage hole, reducing the possibility of oil splashing out from the second oil passage hole during the oil intake process, thereby reducing the risk of burns during oil intake. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A schematic diagram of the connection structure in this application is shown. Figure 1 ;

[0026] Figure 2 A schematic diagram of the connection structure in this application is shown. Figure 2 ;

[0027] Figure 3 A partial structural schematic diagram of the engine in this application is shown.

[0028] Explanation of key component symbols:

[0029] 10-Connection structure;

[0030] 100 - Connecting body; 110 - First connecting part; 120 - Second connecting part; 130 - First oil passage hole; 140 - Second oil passage hole; 150 - Clearance groove;

[0031] 200 - Handheld part;

[0032] 20 - Oil tap; 30 - Lubrication system;

[0033] x - Preset direction. Detailed Implementation

[0034] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0035] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0036] Furthermore, 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 number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0037] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0038] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] Reference Figure 1 as well as Figure 2 As shown, the connection structure 10 involved in the embodiment of this application has a preset direction x, and the connection structure 10 includes: a connection body 100.

[0040] Specifically, the connecting body 100 has a first connecting portion 110 and a second connecting portion 120. The first connecting portion 110 and the second connecting portion 120 are respectively located at both ends of the connecting body 100 along a preset direction x. The connecting body 100 is also provided with a first oil passage hole 130 and a second oil passage hole 140. The first oil passage hole 130 and the second oil passage hole 140 are both extended along the preset direction x. The first oil passage hole 130 at least partially penetrates the first connecting portion 110, and the second oil passage hole 140 at least partially penetrates the second connecting portion 120. The first oil passage hole 130 and the second oil passage hole 140 are connected, and the diameter of the first oil passage hole 130 is smaller than the diameter of the second oil passage hole 140.

[0041] It should be noted that the preset direction x is Figure 1 as well as Figure 2 The direction indicated by x in the middle.

[0042] In the connection structure 10 of this application, the first connecting portion 110 of the connecting body 100 is used to connect with the oil inlet of the engine's lubrication system 30, and the second connecting portion 120 of the connecting body 100 is used to connect with the oil inlet connector 20 of the oil inlet device. The connection structure 10 enables the connection between the engine's lubrication system 30 and the oil inlet connector 20 of the oil inlet device, facilitating oil intake from the engine. During this process, since the first oil passage hole 130 at least partially penetrates the first connecting portion 110, and the second oil passage hole 140 at least partially penetrates the second connecting portion 120, and the first oil passage hole 130 and the second oil passage hole 140 are connected... With the 40 holes connected, engine oil can enter the oil tap 20 through the first oil passage hole 130 and the second oil passage hole 140. At the same time, since the diameter of the first oil passage hole 130 is smaller than that of the second oil passage hole 140, the flow rate of engine oil through the first oil passage hole 130 is less than that through the second oil passage hole 140. Thus, when the engine oil flows through the first oil passage hole 130 and the second oil passage hole 140 in sequence, the engine oil can be buffered in the second oil passage hole 140, which reduces the possibility of engine oil splashing out from the second oil passage hole 140 during the oil tapping process, thereby reducing the risk of being burned during the oil tapping process.

[0043] Reference Figure 2 As shown, the diameter of the first oil passage 130 is D1, and the diameter of the second oil passage 140 is D2, satisfying: 5≤D2 / D1≤7.

[0044] Specifically, in this embodiment, D2 / D1 can be 5, 5.5, 6.0, 6.5, 7.0, etc.

[0045] In this embodiment, if D2 / D1 < 5, the diameter of the second oil passage 140 will be too small and the diameter of the first oil passage 130 will be too large. As a result, when engine oil enters the second oil passage 140 through the first oil passage 130, the flow rate of engine oil entering the second oil passage 140 will increase, and the oil storage space of the second oil passage 140 will decrease, thereby increasing the risk of engine oil splashing out from the second oil passage 140. If D2 / D1 > 7, the diameter of the second oil passage 140 will be too large, which will make the size of the second connecting part 120 too large. When the second connecting part 120 is connected to the standard oil tap 20, it will affect the connection between the second connecting part 120 and the oil tap 20. When 5 ≤ D2 / D1 ≤ 7, the risk of engine oil splashing can be reduced, and the impact on the connection between the second connecting part 120 and the oil tap 20 can also be reduced.

[0046] Specifically, in this embodiment, the following condition is met: 1mm≤D1≤2mm.

[0047] Specifically, in this embodiment, D1 can be 1.0mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2.0mm, etc.

[0048] In this embodiment, if D1 < 1 mm, the diameter of the first oil passage 130 will be too small, resulting in a low oil flow rate through the first oil passage 130, which will reduce the oil extraction efficiency. If D1 > 2 mm, the diameter of the first oil passage 130 will be too large, resulting in a high oil flow rate through the first oil passage 130, which will increase the risk of oil splashing. When 1 mm ≤ D1 ≤ 2 mm, the impact on oil extraction efficiency and the risk of oil splashing can be reduced.

[0049] Continue to refer to Figure 2 As shown, the depth of the first oil passage 130 along the preset direction x is L1, which satisfies: 10≤L1 / D1≤20.

[0050] Specifically, in this embodiment, L1 / D1 can be 10, 12, 14, 16, 18, 20, etc.

[0051] In this embodiment, if L1 / D1≤10, the depth of the first oil passage 130 along the preset direction x will be too short. This will shorten the flow path of the oil in the first oil passage 130, thereby accelerating the flow of oil into the second oil passage 140. This will further accelerate the oil buffering speed in the second oil passage 140, thus accelerating the filling speed of the second oil passage 140 and increasing the risk of oil splashing. If L1 / D1>20, the depth of the first oil passage 130 along the preset direction x will be too deep. This will increase the flow path of the oil in the first oil passage 130, thereby reducing the flow rate of oil into the second oil passage 140 and greatly reducing the oil extraction efficiency. When 10≤L1 / D1≤20, the risk of oil splashing can be reduced, and the impact on oil extraction efficiency can also be reduced.

[0052] Continue to refer to Figure 2 As shown, the depth of the second oil passage 140 along the preset direction x is L2, which satisfies: 2≤L2 / D2≤10.

[0053] Specifically, in this embodiment, L2 / D2 can be 2, 3, 4, 5, 6, 7, 8, 9, 10, etc.

[0054] In this embodiment, if L2 / D2 < 2, the depth of the second oil passage 140 along the preset direction x will be too short, which will accelerate the filling speed of the second oil passage 140, thereby increasing the risk of oil splashing. If L2 / D2 > 10, the depth of the second oil passage 140 along the preset direction x will be too deep, which will increase the flow path of the oil in the second oil passage 140, thereby reducing the oil extraction efficiency. When 2 ≤ L2 / D2 ≤ 10, the risk of oil splashing can be reduced, and the impact on oil extraction efficiency can also be reduced.

[0055] Continue to refer to Figure 2 As shown, the connection structure 10 also includes a handheld part 200, which is connected to the connection body 100 and surrounds the connection body 100 in the circumferential direction, and is located between the first connection part 110 and the second connection part 120. The handheld part 200 protrudes from the connection body 100 in the radial direction.

[0056] In this embodiment, since the handheld part 200 is arranged around the connecting body 100 in the circumferential direction and is located between the first connecting part 110 and the second connecting part 120, when the connecting body 100 is connected to the oil inlet of the engine's lubricating oil system 30 and the oil inlet connector 20 of the oil inlet device, the handheld part 200 can provide a handheld position. At the same time, since the handheld part 200 protrudes from the connecting body 100 in the radial direction, when the connecting body 100 is connected to the oil inlet of the engine's lubricating oil system 30 and the oil inlet connector 20 of the oil inlet device, interference between the first connecting part 110 and the second connecting part 120 and the handheld part 200 can be avoided, ensuring that the operator can always hold the handheld part 200 to facilitate the assembly and disassembly of the connecting structure 10.

[0057] Continue to refer to Figure 2 As shown, the connecting body 100 is also provided with a relief groove 150. The relief groove 150 is formed on the surface of the connecting body 100 and is recessed towards the interior of the connecting body 100 along the radial direction of the connecting body 100. The relief groove 150 is provided to extend along the circumference of the connecting body 100 and is located between the handheld part 200 and the first connecting part 110.

[0058] In this embodiment, since the relief groove 150 is recessed towards the interior of the connecting body 100 along the radial direction of the connecting body 100 and is located between the handle portion 200 and the first connecting portion 110, a sealing ring can be fitted over the relief groove 150 to facilitate the positioning of the sealing ring and prevent it from shifting during the connection between the first connecting portion 110 and the oil inlet of the engine's lubrication system 30. This improves the sealing performance of the connection between the first connecting portion 110 and the oil inlet of the engine's lubrication system 30 and prevents oil leakage from the connection between the first connecting portion 110 and the oil inlet of the engine's lubrication system 30.

[0059] Specifically, both the first connecting portion 110 and the second connecting portion 120 have external threads.

[0060] In this embodiment, since both the first connecting part 110 and the second connecting part 120 have external threads, when the first connecting part 110 is connected to the oil inlet of the engine's lubrication system 30, the first connecting part 110 can be threadedly connected to the oil inlet of the engine's lubrication system 30. Similarly, when the second connecting part 120 of the connecting body 100 is connected to the oil inlet connector 20 of the oil inlet device, the second connecting part 120 can be threadedly connected to the oil inlet connector 20 of the oil inlet device, thereby improving the convenience of connecting the connecting structure 10 to the engine's lubrication system 30 and the oil inlet connector 20 of the oil inlet device.

[0061] Specifically, in this embodiment, when the outer surface of the first connecting part 110 is threaded, the relief groove 150 can act as a tool relief groove to ensure the integrity of the external thread of the first connecting part 110, thereby ensuring the connection stability between the first connecting part 110 and the oil intake port of the engine's lubrication system 30.

[0062] This utility model provides an oil extraction device, including: an oil extraction connector 20 and the aforementioned connection structure 10.

[0063] Specifically, the second connecting part 120 of the connecting structure 10 is connected to the oil tap 20.

[0064] In the oil extraction device of this application, since the connection structure 10 of this application can reduce the possibility of oil splashing out during the oil extraction process, the oil extraction device of this application has a high degree of safety during the oil extraction process.

[0065] Reference Figure 3 As shown, this utility model provides an engine, including: a lubricating oil system 30 and an oil extraction device.

[0066] Specifically, the connecting structure 10 of the oil extraction device is connected to the lubricating oil system 30.

[0067] In the engine of this application, since the oil extraction device of this application has high safety during the oil extraction process, it is possible to extract oil from the engine of this application irregularly or periodically, so as to keep track of the oil index status at any time and ensure the safety of the oil extraction process.

[0068] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0069] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A connection structure characterized by comprising: The connecting structure has a preset direction, and the connecting structure comprises: A connecting body having a first connecting part and a second connecting part, the first connecting part and the second connecting part being located at two ends of the connecting body along the preset direction respectively, the connecting body being further provided with a first oil passing hole and a second oil passing hole, the first oil passing hole and the second oil passing hole being arranged along the preset direction, the first oil passing hole at least partially penetrating the first connecting part, the second oil passing hole at least partially penetrating the second connecting part, the first oil passing hole and the second oil passing hole being in communication, and a hole diameter of the first oil passing hole being smaller than a hole diameter of the second oil passing hole.

2. The connection structure according to claim 1, characterized in that The hole diameter of the first oil passing hole is D1, and the hole diameter of the second oil passing hole is D2, satisfying 5≤D2 / D1≤7.

3. The connection structure according to claim 2, characterized in that Satisfying 1mm≤D1≤2mm.

4. The connection structure according to claim 2, characterized by A depth of the first oil passing hole along the preset direction is L1, satisfying 10≤L1 / D1≤20.

5. The connection structure according to claim 2, wherein A depth of the second oil passing hole along the preset direction is L2, satisfying 2≤L2 / D2≤10.

6. The connection structure according to claim 1, wherein The connecting structure further comprises a hand-holding part, the hand-holding part being connected with the connecting body and being arranged outside the connecting body along a circumferential direction of the connecting body and being located between the first connecting part and the second connecting part, and the hand-holding part being protruded from the connecting body along a radial direction of the connecting body.

7. The connection structure according to claim 6, characterized in that The connecting body is further provided with a relief groove, the relief groove being arranged on a surface of the connecting body and being recessed towards an inside of the connecting body along a radial direction of the connecting body, and the relief groove being arranged along a circumferential direction of the connecting body, the relief groove being located between the hand-holding part and the first connecting part.

8. The connection structure according to claim 1, wherein The first connecting part and the second connecting part are both provided with external threads.

9. An oil extraction device characterized by, The connecting structure comprises: An oil taking joint; The connecting structure according to any one of claims 1-8, the second connecting part of the connecting structure being connected with the oil taking joint.

10. An engine characterized by, The connecting structure comprises: A lubricating oil system; The oil taking device according to claim 9, the connecting structure of the oil taking device being connected with the lubricating oil system.

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