Aviation fuel oil sampling device

Abstract

The utility model provides an aviation fuel oil sampling device, which relates to the field of aviation fuel oil sampling equipment and comprises a sampling bottle, a runner pipe, an external thread, a connecting rod, a mounting seat, a mounting box, a miniature electric push rod, a circular truncated cone and an ejector rod, the device can automatically complete the sampling process after completing the threaded butt joint with the oil outlet of the aircraft body, the sampling bottle is singly screwed off for the subsequent quality inspection process after the sampling is completed, the device does not need to be manually held in the whole aviation fuel oil sampling process, the sampling convenience is improved, and the process is optimized.

Description

TECHNICAL FIELD

[0001] The utility model relates to aviation fuel oil sampling equipment field, specifically, relate to an aviation fuel oil sampling device. BACKGROUND

[0002] In order to ensure the safety of the aircraft and passengers, in the aircraft assembly process in the aviation field, before the aircraft is put into use and before the aircraft takes off, the staff will strictly detect the various function parameters of the aircraft, including aircraft fuel sampling detection, from the degree of pollution or water content of fuel and other factors to judge whether the whole machine oil supply system is intact, whether it can work normally and other conditions. The impurities in aviation fuel not only cause corrosion of system metal parts, but also pollute the atmosphere, and are easily oxidized and condensed into gum and precipitate in fuel, causing combustion system blockage, which has a very important influence on the normal flight of the aircraft in the air.

[0003] Publication No. CN216207797U proposes an aircraft fuel sampling device, which can realize sampling of aviation fuel, but manual support is needed during the sampling process, and the funnel needs to be attached to the bottom of the fuel tank, which can easily cause fatigue after a long time, and the sampling process needs to be optimized. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problem in the background art, and further proposes an aviation fuel oil sampling device.

[0005] The technical scheme adopted by the utility model to solve its technical problems is:

[0006] An aviation fuel oil sampling device, comprising a sampling bottle, further comprising a flow pipe, an external thread, a connecting rod, a mounting seat, a mounting box, a micro electric push rod, a circular table and a top rod,

[0007] One end of the flow pipe is threadedly connected with the bottle mouth of the sampling bottle, and the other end of the flow pipe is provided with an external thread on the outer wall;

[0008] The connecting rod is symmetrically arranged in the upper region inside the flow pipe;

[0009] The mounting seat is fixed between the two connecting rods, and the center of the mounting seat and the center of the flow pipe are on the same straight line;

[0010] The mounting box is fixedly arranged at the bottom of the mounting seat, and the micro electric push rod is arranged in the mounting box;

[0011] The bottom center of the circular table is connected with the micro electric push rod;

[0012] The top rod is fixedly arranged on the circular table, and the end face center of the top rod and the center of the flow pipe are on the same straight line.

[0013] Further, one end of the top rod is provided with a rubber block.

[0014] The rubber block at one end of the top rod contacts the one-way valve to reduce wear of the one-way valve.

[0015] Further, an annular sealing plate is arranged below the external thread on the outer wall of the flow pipe, and a sealing rubber ring with the same size is arranged on the annular sealing plate.

[0016] When the internal thread of the aircraft body oil drain port is matched with the external thread of the flow pipe, the sealing rubber ring can contact the surface of the aircraft body near the oil drain port, thereby improving the sealing effect after installation.

[0017] Further, a plurality of through holes are arranged on the connecting rod, and a plurality of reinforcing ribs are arranged on the bottom of the connecting rod and staggered with the through holes.

[0018] The through holes can reduce the amount of residual fuel oil on the connecting rod, and the reinforcing ribs ensure the bearing strength of the connecting rod.

[0019] Further, the direction of the external thread is opposite to the direction of the external thread of the bottle mouth of the sampling bottle.

[0020] In the above scheme, the dismounting direction of the flow pipe is opposite to the dismounting direction of the sampling bottle, so that the flow pipe and the oil drain port are not loosened during dismounting of the sampling bottle.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] Compared with the prior art, the device can automatically complete the sampling process after the thread of the aircraft body oil drain port is connected, and the sampling bottle can be screwed off for subsequent quality inspection process after sampling, so that the device does not need to be manually held during the whole aviation fuel oil sampling process, the sampling convenience is improved, and the process is optimized. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a whole structure schematic view of the utility model;

[0024] Figure 2 It is a top rod installation schematic view;

[0025] Reference signs:

[0026] 1, sampling bottle; 2, flow pipe; 3, external thread; 4, sealing plate; 5, connecting rod; 6, mounting seat; 7, mounting box; 8, circular table; 9, top rod; 10, rubber block. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present utility model. The present utility model will be further described in combination with the drawings and embodiments.

[0028] As shown in Figure 1 and Figure 2 , an aviation fuel oil sampling device comprises a sampling bottle 1, further comprises a flow pipe 2, an external thread 3, a connecting rod 5, a mounting seat 6, a mounting box 7, a miniature electric push rod, a circular table 8 and a top rod 9,

[0029] One end of the flow pipe 2 is threadedly connected with the bottle mouth of the sampling bottle 1, and a plurality of circles of external threads 3 are arranged on the outer wall of the other end of the flow pipe 2;

[0030] The connecting rod 5 is symmetrically arranged in the upper region inside the flow pipe 2;

[0031] The mounting seat 6 is arranged between the two connecting rods 5, and the center of the mounting seat 6 is on the same straight line as the center of the flow pipe 2;

[0032] The mounting box 7 is arranged at the bottom of the mounting seat 6, and the miniature electric push rod is arranged inside the mounting box 7;

[0033] The bottom center of the circular table 8 is connected with the miniature electric push rod;

[0034] The top rod 9 is arranged on the circular table 8, and the end surface center of the top rod 9 is on the same straight line as the center of the flow pipe 2.

[0035] Further refinement of the embodiment scheme of the present utility model is shown in Figure 2 One end of the top rod 9 is provided with a rubber block 10.

[0036] Further refinement of the embodiment scheme of the present utility model is shown in Figure 1 and Figure 2 An annular sealing plate 4 is arranged below the external threads 3 on the outer wall of the flow pipe 2, the annular sealing plate 4 is provided with a sealing rubber ring consistent in size, and the sealing rubber ring is not shown in the figure.

[0037] Further optimization of the embodiment scheme of the present utility model is that the direction of the external threads 3 is opposite to the direction of the outer circle threads of the bottle mouth of the sampling bottle 1.

[0038] It should be noted that the miniature electric push rod is electrically connected with a controller, and the controller is not shown in the figure.

[0039] The working process of the present utility model is:

[0040] First, connect the mouth of the sampling bottle 1 to the lower end of the flow tube 2 by thread. After the sampling bottle 1 and the flow tube 2 are installed, align the external thread 3 with the oil drain port of the aircraft body and screw it in. The oil drain port of the aircraft body has internal threads and a one-way valve, which is existing technology and will not be improved. Then the connection and fixation between this device and the oil drain port of the aircraft body can be achieved. After the internal thread of the oil drain port and the external thread 3 of the flow tube 2 are engaged, the sealing rubber ring can contact the surface of the aircraft body near the oil drain port, thereby improving the sealing effect after installation.

[0041] In the initial state, the controller controls the miniature electric push rod to retract, so that the push rod 9 is inside the flow tube 2 (as per the instruction manual). Figure 2 As shown in the diagram, once the device is installed, the controller will control the micro electric push rod to extend a pre-set distance. At this time, the push rod 9 will rise vertically and open the one-way valve in the oil outlet. The rubber block 10 is placed in contact with the one-way valve to reduce wear on the one-way valve. Then the aviation fuel oil can flow out. When the fuel oil flows to the truncated cone 8, it will then spread out in all directions and finally leave from the bottom outer edge of the truncated cone 8. Finally, the fuel oil is injected into the sampling bottle 1 through the flow pipe 2 to start the aviation fuel oil sampling process.

[0042] Staff can monitor the collection of aviation fuel oil in the transparent sampling bottle 1 in real time. Once enough aviation fuel oil has been sampled, staff will control the micro electric push rod to retract to its initial state via the controller. At this time, the one-way valve in the drain port will close. After the fuel oil that has flowed out has completely entered the sampling bottle 1, the sampling bottle 1 can be removed by thread for subsequent aviation fuel oil quality inspection. It should be noted that the direction of disassembly and tightening of the flow tube 2 is opposite to that of disassembly and tightening of the sampling bottle 1, so that the flow tube 2 and the drain port will not become loose during the disassembly of the sampling bottle 1.

[0043] Compared to existing technologies, this device can automatically complete the sampling process immediately after completing the threaded connection with the aircraft's fuel drain port. After sampling, the sampling bottle 1 can be unscrewed separately for subsequent quality inspection. The entire aviation fuel sampling process does not require manual handling of the device, thus improving sampling convenience and optimizing the process.

[0044] In some embodiments, the connecting rod 5 has several through holes and several reinforcing ribs that are staggered with the through holes at the bottom of the connecting rod 5. This embodiment is not shown in the figure. This embodiment can reduce the amount of fuel oil remaining on the connecting rod 5 by opening through holes, and on this basis, the reinforcing ribs ensure the load-bearing strength of the connecting rod 5.

[0045] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. An aviation fuel oil sampling device comprising a sampling bottle (1), characterised in that, It also includes a flow pipe (2), an external thread (3), a connecting rod (5), a mounting seat (6), a mounting box (7), a micro electric push rod, a circular table (8), and a top rod (9), One end of the flow pipe (2) is threadedly connected with the bottle mouth of the sampling bottle (1), and the other end of the flow pipe (2) is provided with an external thread (3) on the outer wall thereof; The connecting rod (5) is symmetrically fixed in the upper region inside the flow pipe (2); The mounting seat (6) is fixed between the two connecting rods (5), and the center of the mounting seat (6) is on the same straight line with the center of the flow pipe (2); The mounting box (7) is fixed at the bottom of the mounting seat (6), and the micro electric push rod is arranged inside the mounting box (7); The bottom center of the circular table (8) is connected with the micro electric push rod; The top rod (9) is fixed on the circular table (8), and the end face center of the top rod (9) is on the same straight line with the center of the flow pipe (2).

2. An aircraft fuel oil sampling device according to claim 1, wherein, One end of the top rod (9) is provided with a rubber block (10).

3. An aircraft fuel oil sampling device according to claim 1, wherein, An annular sealing plate (4) is arranged below the external thread (3) on the outer wall of the flow pipe (2), and the annular sealing plate (4) is provided with a sealing rubber ring with the same size.

4. An aircraft fuel oil sampling device according to claim 1, wherein, A plurality of through holes are formed in the connecting rod (5), and a plurality of reinforcing ribs are arranged at the bottom of the connecting rod (5) and staggered with the through holes.

5. An aircraft fuel oil sampling device according to claim 1, wherein, The direction of the external thread (3) is opposite to the direction of the outer circle thread of the bottle mouth of the sampling bottle (1).

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