Oil detection device for aircraft engines

Abstract

This utility model relates to the field of aircraft testing technology and discloses a fluid testing device for aircraft engines, comprising: a flexible oil receiving bottle, an oil collecting connector, a flexible oil receiving pipe, and a pipe clamp; the flexible oil receiving bottle has an opening, the oil collecting connector has a first connecting end and a second connecting end that are interconnected, the first connecting end being connected to the opening, the flexible oil receiving pipe has an oil receiving end and an oil collecting end that are interconnected, the oil collecting end being connected to the second connecting end, the oil receiving end being used to connect to the residual oil pipe of the aircraft engine, and the pipe clamp being sleeved on the flexible oil receiving pipe, with at least a portion of the pipe clamp located on the outer periphery of the oil receiving end, the pipe clamp enabling the inner diameter of the oil receiving end to be reduced and thus fitted in a limiting fit with the residual oil pipe of the aircraft engine. This utility model can improve the safety and reliability of testing.

Description

Technical Field

[0001] This utility model relates to the field of aircraft testing technology, and in particular to an oil testing device for aircraft engines. Background Technology

[0002] With the continuous development of aviation technology, the performance and safety requirements of aircraft engines are also increasing. During aircraft engine testing, operators need to effectively collect and measure engine oil to detect engine leakage rates in a timely manner. Existing aircraft engine oil testing tools typically adopt an integrated design, including multiple components such as an oil collection sump, oil collection pipe, oil receiving pipe, and metering scale. While this design simplifies the operation process to some extent, it also has some significant drawbacks.

[0003] First, during engine testing, the continuous vibration of the engine and the lubricating properties of the oil pose a risk of the existing testing device falling off during use. This not only leads to incomplete oil collection but may also threaten the safety of the operator. Second, this integrated measuring tool has limitations. When any component is damaged or malfunctions, the entire tool becomes unusable, forcing the operator to replace it entirely, increasing maintenance costs.

[0004] Therefore, there is an urgent need to design an oil detection device to overcome the shortcomings of existing technologies, improve the safety and reliability of detection, and reduce maintenance costs. Utility Model Content

[0005] The purpose of this invention is to design an oil detection device that can improve the safety and reliability of detection.

[0006] To achieve the above objectives, this utility model provides an oil detection device for aircraft engines, comprising: a flexible oil collection bottle, an oil collection connector, a flexible oil receiving pipe, and pipe clamps.

[0007] The flexible oil receiving bottle has an opening, and the oil collecting connector has a first connecting end and a second connecting end that are interconnected. The first connecting end is connected to the opening. The flexible oil receiving pipe has an oil receiving end and an oil collecting end that are interconnected. The oil collecting end is connected to the second connecting end. The oil receiving end is used to connect to the residual oil pipe of the aircraft engine. The pipe clamp is sleeved on the flexible oil receiving pipe, and at least part of the pipe clamp is located on the outer periphery of the oil receiving end. The pipe clamp can reduce the inner diameter of the oil receiving end and limit its fit with the residual oil pipe of the aircraft engine.

[0008] Furthermore, the tube clamp includes a first spiral tube, which is spirally wound around the outer periphery of the oil receiving end. The two ends of the first spiral tube cross each other to form two first handles. When the two first handles are in a natural state, the first spiral tube is tightly fitted with the oil receiving end. When the two first handles are brought close to each other under the action of external force, there is a release gap between the first spiral tube and the oil receiving end.

[0009] Furthermore, the second connecting end is inserted into the oil collecting end, at least part of the pipe clamp is located on the outer periphery of the oil collecting end, and can limit the inner diameter of the oil collecting end to cooperate with the second connecting end after the inner diameter is reduced.

[0010] Furthermore, the pipe clamp includes a second spiral tube, which is spirally wound around the outer periphery of the oil collecting end. The two ends of the second spiral tube cross each other to form two second hand grips. When the two second hand grips are in a natural state, the second spiral tube is tightly fitted with the oil collecting end. When the two second hand grips are brought closer to each other under the action of external force, there is a movement gap between the second spiral tube and the oil collecting end.

[0011] Furthermore, the two first hand-held parts and the two second hand-held parts are connected in an alternating manner. When the two first hand-held parts approach each other under the action of external force, the two second hand-held parts move away from each other.

[0012] Furthermore, the oil collecting connector is provided with an oil passage and an exhaust passage, and an exhaust hole is also provided on the oil collecting connector. The oil passage connects the first connecting end and the second connecting end, and one end of the exhaust passage is connected to the oil passage and the other end is connected to the exhaust hole.

[0013] Furthermore, the oil collecting connector includes a connecting portion and a bent connector body. The connecting portion protrudes from the first end of the connector body to define the second connecting end. The connecting portion is inserted into the flexible oil receiving pipe for contacting the excess oil pipe of the aircraft engine. The oil collecting end abuts against the first end of the connector body. The vent is opened at the first end of the connector body and is offset from the oil collecting end. The second end of the connector body is connected to the flexible oil receiving bottle to define the first connecting end.

[0014] Furthermore, the flexible oil collection bottle includes a spherical portion and a mounting portion, one end of the mounting portion is connected to the spherical portion, and the opening is formed at the other end of the mounting portion.

[0015] Furthermore, the spherical portion is transparent and has measuring scales on its peripheral wall.

[0016] Furthermore, the included angle formed between the first end and the second end of the connector body is less than 180°.

[0017] Compared with the prior art, the oil detection device for aircraft engines according to this embodiment of the utility model has the following advantages:

[0018] This utility model discloses an oil detection device for aircraft engines. By installing a pipe clamp on the outside of the oil inlet end of a flexible oil inlet pipe and using the clamp to retract the oil inlet end, a limiting fit with the excess oil pipe of the aircraft engine is achieved. This effectively and firmly fixes the detection device to the excess oil pipe, significantly reducing the risk of the device falling off due to vibration and oil lubrication during engine testing, thereby improving operational safety. Furthermore, the device is composed of multiple independent components. When one component (such as the flexible oil inlet pipe) becomes unusable due to wear, damage, or other reasons, only the damaged component needs to be replaced, without replacing the entire device. This modular design greatly improves the durability of the device, reduces maintenance and replacement costs, and extends the device's service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an oil detection device for aircraft engines according to an embodiment of the present invention. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the structure of an oil detection device for aircraft engines according to an embodiment of the present invention. Figure 2 ;

[0021] Figure 3 This is a cross-sectional view of an oil detection device for an aircraft engine according to an embodiment of the present invention.

[0022] In the diagram, 1. Flexible oil collection bottle; 11. Opening; 12. Spherical part; 13. Mounting part; 2. Oil collection connector; 21. First connecting end; 22. Second connecting end; 23. Oil passage; 24. Exhaust passage; 25. Exhaust hole; 26. Connecting part; 27. Connector body; 3. Flexible oil receiving pipe; 31. Oil receiving end; 32. Oil collecting end; 4. Pipe clamp; 41. First winding pipe; 42. First handhold; 43. Second winding pipe; 44. Second handhold; 5. Excess oil pipe of aircraft engine. Detailed Implementation

[0023] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" used to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, it should be understood that the terms "connected," "linked," and "fixed," etc., used in this utility model 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 a welded 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, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] In this invention, terms such as "first" and "second" are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this invention, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information.

[0027] Reference Figure 1 and Figure 2 An embodiment of the present invention provides an oil detection device for an aircraft engine, comprising: a flexible oil collection bottle 1, an oil collection connector 2, a flexible oil receiving pipe 3, and a pipe clamp 4.

[0028] The flexible oil receiving bottle 1 has an opening 11. The oil collecting connector 2 has a first connecting end 21 and a second connecting end 22 that are interconnected. The first connecting end 21 is connected to the opening 11. The flexible oil receiving pipe 3 has an oil receiving end 31 and an oil collecting end 32 that are interconnected. The oil collecting end 32 is connected to the second connecting end 22. The oil receiving end 31 is used to connect to the residual oil pipe 5 of the aircraft engine. The pipe clamp 4 is sleeved on the flexible oil receiving pipe 3, and at least part of the pipe clamp 4 is located on the outer periphery of the oil receiving end 31. The pipe clamp 4 can reduce the inner diameter of the oil receiving end 31 and limit its fit with the residual oil pipe 5 of the aircraft engine.

[0029] Specifically, the inner diameter of the flexible oil connection pipe 3 is smaller than the outer diameter of the excess oil pipe 5 of the aircraft engine, so that the excess oil pipe can be interference-fitted with the flexible oil connection pipe 3 for fixation.

[0030] In some improvements of this application, the tube clamp 4 includes a first spiral tube 41, which is spirally wound around the outer periphery of the oil receiving end 31. The two ends of the first spiral tube 41 cross each other to form two first handholds 42. When the two first handholds 42 are in a natural state, the first spiral tube 41 is tightly fitted with the oil receiving end 31. When the two first handholds 42 are brought closer to each other under the action of external force, there is a release gap between the first spiral tube 41 and the oil receiving end 31.

[0031] When the two ends (first hand-held portions 42) of the spiral-shaped first winding tube 41 are in their natural state, they can tightly wrap around and shrink the outer periphery of the oil receiving end 31, achieving a firm fit with the engine's excess oil pipe. By pinching the two staggered ends, i.e., the two first hand-held portions 42, the operator can loosen the first winding tube 41, obtain a release gap, and then adjust the tightness of the pipe clamp 4 on the flexible oil receiving pipe 3.

[0032] In some improvements of this application, the second connecting end 22 is inserted into the oil collecting end 32, and at least part of the pipe clamp 4 is located on the outer periphery of the oil collecting end, allowing the inner diameter of the oil collecting end 32 to be reduced and thus limiting its fit with the second connecting end 22. The pipe clamp 4 simultaneously clamps both ends of the flexible oil receiving pipe 3, forming a double fixation, making the connection between the oil collecting connector 2 and the flexible oil receiving pipe 3 more secure.

[0033] In some improvements of this application, the pipe clamp 4 includes a second spiral tube 43, which is spirally wound around the outer periphery of the oil collecting end 32. The two ends of the second spiral tube 43 intersect to form two second handles 44. When the two second handles 44 are in their natural state, the second spiral tube 43 and the oil collecting end 32 are tightly fitted. When the two second handles 44 are brought closer together under external force, a movement gap exists between the second spiral tube 43 and the oil collecting end 32. When it is necessary to disassemble the device, simply pinch the two second handles 44 to expand the spiral of the second spiral tube 43 outward, creating a movement gap, thereby reducing its contractile force on the oil collecting end 32. This allows the operator to easily restore the inner diameter of the oil collecting end 32 to a sufficiently large size to facilitate the disconnection of the oil collecting end 32 from the second connecting end 22.

[0034] In some improvements of this application, the two first handle parts 42 and the two second handle parts 44 are connected in an alternating manner. When the two first handle parts 42 approach each other under the action of external force, the two second handle parts 44 move away from each other. During installation, the operator only needs to squeeze one set of handle parts, such as the first handle parts 42, to simultaneously and firmly fix the oil receiving end 31 and the oil collecting end 32, preventing them from falling off during installation.

[0035] Reference Figure 3 In some improvements of this application, the oil collecting connector 2 is provided with an oil passage 23 and an exhaust passage 24, and an exhaust hole 25 is also provided on the oil collecting connector 2. The oil passage 23 connects the first connecting end 21 and the second connecting end 22. One end of the exhaust passage 24 is connected to the oil passage 23, and the other end is connected to the exhaust hole 25. The exhaust passage 24 can timely discharge the air in the oil passage 23, avoiding poor oil flow or measurement errors caused by gas retention.

[0036] In some improvements of this application, the oil collecting connector 2 includes a connecting portion 26 and a bent connector body 27. The connecting portion 26 protrudes from the first end of the connector body 27 to define the second connecting end 22. The connecting portion 26 is inserted into the flexible oil receiving pipe 3 for contacting the excess oil pipe 5 of the aircraft engine. The oil collecting end 32 abuts against the first end of the connector body 27. The vent 25 is opened at the first end of the connector body 27 and is offset from the oil collecting end 32. The second end of the connector body 27 is connected to the flexible oil receiving bottle 1 to define the first connecting end 21. The bent connector body 27 design allows the oil collecting connector 2 to be flexibly arranged in a limited space, adapting to the complex structural layout of the aircraft engine and improving the ease of installation. The offset arrangement of the vent 25 from the oil collecting end 32 allows it to connect to the exhaust channel 24 and the outside. Arranging the vent 25 at the first end of the connector body 27 also ensures that its opening 11 is always upward, facilitating gas discharge. Specifically, the second end of the connector body 27 is connected to the flexible oil receiving bottle 1 by a screw, and the connection between the two is tighter and less prone to loosening through the thread engagement.

[0037] In some improvements of this application, the flexible oil receiving bottle 1 includes a spherical portion 12 and a mounting portion 13. One end of the mounting portion 13 is connected to the spherical portion 12, and the opening 11 is formed at the other end of the mounting portion 13. The spherical shape, as one of the most volumetrically efficient geometric shapes, can accommodate a larger amount of excess oil, and the flexible spherical shape of the oil receiving bottle facilitates its deformation to adapt to the complex structural layout of aircraft engines.

[0038] In some improvements of this application, the spherical portion 12 is transparent and has a measuring scale on its peripheral wall, allowing the operator to directly see the amount of oil collected. Specifically, the measuring unit of the measuring scale is milliliters.

[0039] In some improvements of this application, the included angle between the first end and the second end of the connector body 27 is less than 180°.

[0040] The working principle and usage process of this technical solution:

[0041] The operator first places the flexible oil inlet pipe 3 over the outside of the excess oil pipe 5 of the aircraft engine. By squeezing the pipe clamp 4, the two first hand-held parts 42 are brought close together to facilitate the opening of the oil inlet pipe and its tight connection with the excess oil pipe, thereby fixing the device. After fixing, the pipe clamp 4 is released to allow the two first hand-held parts 42 to return to their natural state. When the excess oil pipe 5 of the aircraft engine drips oil, the dripping oil will pass through the flexible oil inlet pipe 3 and the oil collecting connector 2 in sequence to the interior of the flexible oil receiving bottle 1. During this process, the vent 25 is used to balance the air pressure inside the flexible oil receiving bottle 1 with the outside air, so that the oil dripping is smooth.

[0042] When the test time is reached, the operator squeezes the pipe clamp 4 to bring the two first hand parts 42 close together to release the flexible oil receiving pipe 3, making it easy to separate and pull out the flexible oil receiving pipe 3 from the residual oil pipe 5 of the aircraft engine. Then, the flexible oil receiving bottle 1 of this device is rotated to the upright position, that is, the measuring position of the measuring scale. At this time, the operator can directly read the amount of oil leakage from the aircraft engine through the measuring scale and obtain the test results.

[0043] In a specific embodiment of this application, the flexible oil collection bottle 1 is made of silicone; the oil collection connector 2 is made of hard plastic, such as PTFE; the flexible oil receiving pipe 3 is made of a double-layer composite of silicone and PVC, with silicone as the inner layer and PVC as the outer layer. When the flexible oil receiving pipe 3 is heated during use, the high coefficient of thermal expansion of silicone and the low coefficient of thermal expansion of PVC help to ensure a tight connection with the residual oil pipe 5 of the aircraft engine, preventing it from falling off. Silicone, PTFE, and PVC all have oil resistance and high temperature resistance, and silicone is colorless and translucent, making the flexible oil collection bottle 1 transparent, allowing operators to see the oil inside and obtain the leakage amount according to the metering scale.

[0044] In summary, this utility model embodiment provides an oil detection device for aircraft engines, which adopts a combination of a flexible oil collection bottle 1, an oil collection connector 2, a flexible oil connection pipe 3, and pipe clamps 4, making oil collection and measurement more convenient, allowing operators to quickly and accurately obtain the oil status, and reducing human error. The transparent spherical part 12 and the metering scale design make the observation and monitoring of oil volume more intuitive. At the same time, the staggered connection design of the pipe clamps 4 enhances the stability of the device and ensures safety under high pressure or vibration environments. The optimization of the overall structure not only improves the flexibility of operation, but also reduces oil leakage errors caused by poor connections.

[0045] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. An oil detection device for an aircraft engine, characterized in that, include: Flexible oil collection bottle, oil collection connector, flexible oil connection pipe and pipe clamp; The flexible oil receiving bottle has an opening, and the oil collecting connector has a first connecting end and a second connecting end that are interconnected. The first connecting end is connected to the opening. The flexible oil receiving pipe has an oil receiving end and an oil collecting end that are interconnected. The oil collecting end is connected to the second connecting end. The oil receiving end is used to connect to the residual oil pipe of the aircraft engine. The pipe clamp is sleeved on the flexible oil receiving pipe, and at least part of the pipe clamp is located on the outer periphery of the oil receiving end. The pipe clamp can reduce the inner diameter of the oil receiving end and limit its fit with the residual oil pipe of the aircraft engine.

2. The oil detection device for an aircraft engine according to claim 1, wherein The tube clamp includes a first spiral tube, which is spirally wound around the outer periphery of the oil receiving end. The two ends of the first spiral tube cross each other to form two first handles. When the two first handles are in a natural state, the first spiral tube is tightly fitted with the oil receiving end. When the two first handles are brought close to each other under the action of external force, there is a release gap between the first spiral tube and the oil receiving end.

3. The oil detection apparatus for an aircraft engine according to claim 2, wherein The second connecting end is inserted into the oil collecting end, at least part of the pipe clamp is located on the outer periphery of the oil collecting end, and can limit the inner diameter of the oil collecting end to cooperate with the second connecting end after the inner diameter is reduced.

4. The oil detection apparatus for an aircraft engine according to claim 3, wherein The pipe clamp includes a second spiral tube, which is spirally wound around the outer periphery of the oil collecting end. The two ends of the second spiral tube cross each other to form two second hand grips. When the two second hand grips are in a natural state, the second spiral tube is tightly fitted with the oil collecting end. When the two second hand grips are brought closer to each other under the action of external force, there is a movement gap between the second spiral tube and the oil collecting end.

5. The oil detection apparatus for an aircraft engine according to claim 4, wherein The two first hand-held parts and the two second hand-held parts are connected in an alternating manner. When the two first hand-held parts approach each other under the action of external force, the two second hand-held parts move away from each other.

6. The oil detection apparatus for an aircraft engine as recited in claim 1, wherein The oil collecting connector is provided with an oil passage and an exhaust passage. The oil collecting connector is also provided with an exhaust hole. The oil passage connects the first connecting end and the second connecting end. One end of the exhaust passage is connected to the oil passage, and the other end is connected to the exhaust hole.

7. The oil detection apparatus for an aircraft engine according to claim 6, wherein The oil collecting connector includes a connecting part and a bent connector body. The connecting part protrudes from the first end of the connector body to define the second connecting end. The connecting part is inserted into the flexible oil receiving pipe for contacting the excess oil pipe of the aircraft engine. The oil collecting end abuts against the first end of the connector body. The vent is opened at the first end of the connector body and is offset from the oil collecting end. The second end of the connector body is connected to the flexible oil receiving bottle to define the first connecting end.

8. The oil detection apparatus for an aircraft engine as recited in claim 1, wherein The flexible oil collection bottle includes a spherical part and a mounting part, one end of the mounting part is connected to the spherical part, and the opening is opened at the other end of the mounting part.

9. The oil detection apparatus for an aircraft engine as recited in claim 8, wherein The spherical part is transparent and has measuring scales on its peripheral wall.

10. The oil detection apparatus for an aircraft engine as recited in claim 7, wherein The included angle between the first end and the second end of the connector body is less than 180°.

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