CN215479691U

CN215479691U - Aircraft fuel deposits discharges instrument

Info

Publication number: CN215479691U
Application number: CN202121149219.XU
Authority: CN
Inventors: 罗伟; 易从涛; 陈基向; 杨鹏
Original assignee: HNA Aviation Technic Co Ltd
Current assignee: HNA Aviation Technic Co Ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2022-01-11
Anticipated expiration: 2031-05-26

Abstract

The utility model provides an aircraft fuel deposits discharge tool, includes a funnel, matches the oil extraction pipe that sets up in the funnel, sets up the hollow mount pad at oil extraction pipe top, top in the mount pad is installed to elasticity, a plurality of oil spills mouth have evenly been seted up to the interval from top to bottom on the lateral wall of oil extraction pipe. The oil discharge pipe is internally provided with a current-limiting detection block, the current-limiting detection block is provided with a cambered surface bulge in the inner cavity of the oil discharge pipe, and detection ink is uniformly coated on the surface of the bulge of the current-limiting detection block. The centre in the tool can elastically stretch out and draw back on the mounting seat; be provided with the bellied current-limiting of cambered surface in the oil extraction pipe and detect the piece for aircraft fuel fully contacts the printing ink on the protruding surface that the current-limiting detected the piece, can effectively improve and detect the precision.

Description

Aircraft fuel deposits discharges instrument

Technical Field

The utility model relates to the field of airplane fuel precipitation and discharge equipment, in particular to an airplane fuel precipitation and discharge tool.

Background

At present, civil aviation airliners can carry out maintenance work regularly in order to ensure the functionality, reliability and safety of the systems. The fuel tank is used as an important part of a civil aircraft, and regular inspection and maintenance can be carried out, otherwise, microorganisms are easily bred at the junction of water and fuel oil after the water and crystal are deposited on the fuel tank, so that the structure of the fuel tank is corroded, oil leakage is caused, the structure of a large wing of an aircraft of the whole fuel tank is corroded, and the microorganisms can enter an engine along a fuel pipeline to damage the engine. The fuel tank sediment discharge and fuel sampling detection work are two basic works in the regular detection. The aircraft fuel sedimentation discharge tool commonly used in many maintenance bases at present has the following defects:

1) the oil drain funnel is made of opaque materials, the tip of an oil drain tool cannot be aligned with an aircraft oil drain valve, so that the contact between the thimble and the aircraft skin is easy to cause and the potential safety hazard of rubbing is caused;

2) the fixedly arranged thimble often causes that the recovery mechanism of the oil drain valve of the airplane cannot be reset, so that a large amount of fuel oil overflows, the overflowing fuel oil splashes eyes or skin of maintainers and can injure the eyes, the skin is injured when the fuel oil is contacted for a long time, and the overflowing fuel oil can pollute the apron and has fire hidden trouble;

3) the existing aircraft fuel precipitation and discharge tool does not have the functions of preliminarily detecting fuel and visually displaying a detection result.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide an aircraft fuel deposit discharging tool, the tip of which can elastically stretch out and draw back on a mounting seat; be provided with the bellied current-limiting of cambered surface in the oil extraction pipe and detect the piece for aircraft fuel fully contacts the printing ink on the protruding surface that the current-limiting detected the piece, can effectively improve and detect the precision.

In order to achieve the purpose, the scheme is realized by the following technical scheme:

the utility model provides an aircraft fuel deposits discharge tool, includes a funnel, matches the oil extraction pipe that sets up in the funnel, sets up the hollow mount pad at oil extraction pipe top, top in the mount pad is installed to elasticity, a plurality of oil spills mouth have evenly been seted up to the interval from top to bottom on the lateral wall of oil extraction pipe. The oil discharge pipe is internally provided with a current-limiting detection block, the current-limiting detection block protrudes towards the middle arc surface of the inner cavity of the oil discharge pipe, and detection ink is uniformly coated on the protruding surface of the current-limiting detection block.

Preferably, the wall of the oil discharge pipe is further provided with a transparent window, and the transparent window is opposite to the current-limiting detection block.

Preferably, the mounting seat is provided with a stepped inner cavity, the tip is mounted at the upper part of the stepped inner cavity, a return spring is mounted at the lower part of the stepped inner cavity, and the upper end of the return spring abuts against the lower end face of the tip.

Preferably, a fixed rod is transversely arranged on the outer wall of the oil discharge pipe, and two ends of the fixed rod are respectively connected with the outer wall of the oil discharge pipe and the inner wall of the funnel.

Preferably, the funnel is made of transparent materials.

Compared with the prior art, the utility model has the beneficial effects that:

1) the center can elastically stretch out and draw back on the mounting seat, so that the problem that the return mechanism cannot reset when the center pushes open the oil drain valve of the airplane is effectively avoided;

2) the flow-limiting detection block with the convex cambered surface is arranged in the oil discharge pipe, so that the fuel oil of the airplane fully contacts the ink on the convex surface of the flow-limiting detection block, and the detection precision can be effectively improved;

3) the funnel is transparent material, and top is aimed at aircraft oil drain valve easily.

In order that the utility model may be more clearly understood, preferred embodiments of the utility model will now be described with reference to the accompanying drawings.

Drawings

Fig. 1 is a reference diagram of the use state of the present invention.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

Furthermore, if the terms "first," "second," and the like are used for descriptive purposes only, they are used for mainly distinguishing different devices, elements or components (the specific types and configurations may be the same or different), and they are not used for indicating or implying relative importance or quantity among the devices, elements or components, but are not to be construed as indicating or implying relative importance.

Referring to fig. 1, the aircraft fuel oil sedimentation and discharge tool comprises a funnel 1, an oil discharge pipe 2 arranged in the funnel 1 in a matching manner, a hollow mounting seat 3 arranged at the top end of the oil discharge pipe 2, and a tip 4 elastically mounted in the mounting seat 3, wherein a plurality of oil overflow ports 5 are uniformly formed in the side wall of the oil discharge pipe 2 at intervals from top to bottom. After the tip 4 jacks up the aircraft oil discharge valve, the fuel oil in the aircraft oil tank flows into the funnel 1, flows into the oil discharge pipe 2 through the oil overflow port 5, and finally flows into a fuel oil sample collection container 10 through the oil discharge pipe 2.

Further, be provided with a current-limiting detection piece 6 in the oil drain pipe 2, this current-limiting detection piece 6 is located the position between funnel 1 and the fuel sample collection container 10, and this current-limiting detection piece 6 has the bellied surface of arc in 2 inner chambers of oil drain pipe, and has evenly scribbled detection printing ink on the bellied surface of this current-limiting detection piece 6, detects the water content that printing ink is used for detecting the aircraft fuel, can come the water content in the audio-visual judgement aircraft fuel according to the discoloration condition that detects printing ink. Because the current-limiting detection block 6 is a cambered surface bulge, the inner cavity of the oil discharge pipe 2 is narrowed at the position of the current-limiting detection block 6, and the aircraft fuel flowing through the position is limited in current, so that the aircraft fuel fully contacts the ink on the bulge surface of the current-limiting detection block 6, and the detection precision can be effectively improved.

Furthermore, in order to observe the detection result more intuitively, a transparent window 7 is further formed in the pipe wall of the oil discharge pipe 2, and the transparent window 7 is over against the current-limiting detection block 6, so that the color change condition of the ink on the surface of the current-limiting detection block 6 can be seen from the outside of the oil discharge pipe 2.

Further, the mounting seat 3 is provided with a stepped inner cavity, the top 4 is mounted on the upper portion of the stepped inner cavity, the lower portion of the stepped inner cavity is provided with a reset spring 8, and the upper end of the reset spring 8 abuts against the lower end face of the top 4, so that the top 4 can elastically stretch on the mounting seat 3, and the problem that the return mechanism cannot reset when the top 4 pushes the oil drain valve of the airplane is effectively solved.

Furthermore, a fixing rod 9 is transversely arranged on the outer wall of the oil discharge pipe 2, and two ends of the fixing rod 9 are respectively connected with the outer wall of the oil discharge pipe 2 and the inner wall of the funnel 1, so that the oil discharge pipe 2 is fixed in the funnel 1.

Preferably, in this embodiment, the funnel 1 is made of a transparent material, so that the observation can be conveniently performed; the oil discharge pipe 2 is made of metal, so that the structural strength is guaranteed, and the durability is enhanced.

Compared with the prior art, the utility model has the beneficial effects that: the centre 4 can elastically stretch out and draw back on the mounting seat 3, so that the problem that the return mechanism cannot reset when the oil drain valve of the airplane is jacked open by the centre 4 is effectively avoided; a current-limiting detection block 6 with a convex cambered surface is arranged in the oil discharge pipe 2, so that aircraft fuel oil fully contacts ink on the convex surface of the current-limiting detection block 6, and the detection precision can be effectively improved; the funnel 1 is made of transparent materials, and the tip 4 is easy to align to an airplane oil drain valve.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. An aircraft fuel deposits discharge tool which characterized in that: the oil drainage device comprises a funnel, an oil drainage pipe arranged in the funnel in a matched mode, a hollow mounting seat arranged at the top end of the oil drainage pipe, and a tip elastically mounted in the mounting seat, wherein a plurality of oil overflow ports are uniformly formed in the side wall of the oil drainage pipe at intervals from top to bottom.

2. An aircraft fuel deposit drain tool as claimed in claim 1, wherein: the oil discharge pipe is internally provided with a current-limiting detection block, the current-limiting detection block protrudes towards the middle arc surface of the inner cavity of the oil discharge pipe, and detection ink is uniformly coated on the protruding surface of the current-limiting detection block.

3. An aircraft fuel deposit drain tool as claimed in claim 2, wherein: and the pipe wall of the oil discharge pipe is also provided with a transparent window, and the transparent window is over against the current-limiting detection block.

4. An aircraft fuel deposit drain tool as claimed in claim 2, wherein: the mounting seat is provided with a stepped inner cavity, the tip is mounted at the upper part of the stepped inner cavity, a reset spring is mounted at the lower part of the stepped inner cavity, and the upper end of the reset spring abuts against the lower end face of the tip.

5. An aircraft fuel deposit drain tool as claimed in claim 2, wherein: a fixed rod is transversely arranged on the outer wall of the oil discharge pipe, and the two ends of the fixed rod are respectively connected with the outer wall of the oil discharge pipe and the inner wall of the funnel.

6. An aircraft fuel deposit drain tool as claimed in claim 2, wherein: the funnel is transparent material.