Oil drainage tool for oil tank of unmanned aerial vehicle

Abstract

The utility model relates to an unmanned aerial vehicle fuel tank oil drainage tool, belongs to the technical field of aircraft fuel tank maintenance, and solves the problems that a liquid drainage device in the prior art is inconvenient to operate and easy to leak and pollute. The device comprises a sleeve, a sleeve mounting rod, a flow guide strip, a waste oil collecting shell, a driving nut and a flow guide pipe which are sequentially connected from top to bottom, and further comprises an auxiliary handle and an adjustable bracket mechanism. According to the oil drainage tool, the sleeve is driven by the driving nut to disassemble the liquid drainage device, and meanwhile, the flow guide strip, the waste oil collecting shell and the flow guide pipe are adopted to guide flow of flowing-out oil, so that when the oil drainage tool is used for oil drainage, operation is easy, and the situation that the oil leaks and pollutes personnel, airplanes and sites due to tools is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft fuel tank maintenance, in particular to an oil draining tool for a fuel tank of an unmanned aerial vehicle. Background Art

[0002] Aircraft that use fuel as fuel are equipped with various forms of fuel tanks. Most aircraft have regulations on the process of taking fuel samples (draining a small amount of oil) before flight. When the aircraft undergoes partial maintenance or is parked for a long time, the fuel in the fuel tank usually needs to be completely emptied to avoid the risk of possible explosion. Therefore, the fuel tank will be equipped with a specific drainage device to facilitate fuel discharge and ensure that there is no fuel leakage at any stage of the aircraft operation. At present, the drainage devices installed on most aircraft fuel storage tanks are spring self-sealing or drain plugs. The drain plugs are mostly hollow hexagonal bolts. When using these two drainage devices, it is necessary to use an open wrench or socket wrench of matching size to loosen the drain plug, and use an open waste oil collection barrel to collect oil at the bottom for draining. When adjusting the drain flow, some oil will leak in the gap between the tools, causing pollution to personnel, aircraft and sites. For this reason, we propose a UAV fuel tank drain tool. Utility Model Content

[0003] In view of the above analysis, an embodiment of the utility model aims to provide a UAV fuel tank draining tool to solve the problem that the existing draining device is inconvenient to operate and prone to leakage.

[0004] On the one hand, the utility model provides an unmanned aerial vehicle tank oil draining tool, comprising a sleeve, a sleeve mounting rod, a guide strip, a waste oil collection shell, a drive nut and a guide pipe; wherein the sleeve has an upper end and a lower end, the upper end can be adapted to the discharge device of the oil tank, and the lower end is detachably connected to the top of the sleeve mounting rod; the bottom of the sleeve mounting rod is fixedly connected to the top of the guide strip, and the bottom end of the guide strip is fixedly connected to the inner surface of the waste oil collection shell; the bottom of the waste oil collection shell is fixedly connected to the top of the drive nut, and the bottom of the drive nut is fixedly connected to the top of the guide pipe.

[0005] Furthermore, the waste oil collection shell is in the shape of a funnel, and an oil outlet hole is provided at the bottom of the waste oil collection shell.

[0006] Furthermore, a plurality of guide bars are provided, and the plurality of guide bars are evenly distributed along the circumference of the bottom of the sleeve mounting rod, each of the guide bars forms a certain angle with the sleeve mounting rod, and the plurality of guide bars are located on the same conical surface.

[0007] Furthermore, the bottoms of the plurality of guide strips are fixedly connected to the inner surface of the waste oil collection housing, so that the sleeve mounting rod and the sleeve are coaxial with the waste oil collection housing.

[0008] Furthermore, an auxiliary handle is included.

[0009] Furthermore, the auxiliary handle includes two U-shaped handle portions, one end of which is fixedly connected to the outer conical surface of the waste oil collection shell, and the other end is fixedly connected to the outer peripheral surface of the guide tube; the two handle portions are symmetrically arranged.

[0010] Furthermore, a bracket mechanism is also included.

[0011] Furthermore, the support mechanism includes a support fixing seat, a support, a fixing screw and a telescopic support.

[0012] Furthermore, the bracket fixing seat is an annular structure, which is sleeved outside the guide tube; a plurality of threaded holes are evenly distributed on the circumference of the bracket fixing seat, and a plurality of fixing screws are respectively arranged in the threaded holes.

[0013] Furthermore, a plurality of the brackets are fixedly connected to the bracket fixing seat, and the plurality of the brackets are evenly distributed around the circumference of the bracket fixing seat; each of the brackets forms a certain angle with the guide tube, and the plurality of the brackets are on the same conical surface; and the end of each of the brackets is detachably connected to one of the telescopic brackets.

[0014] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0015] (1) The utility model drives the sleeve to disassemble the drain device by driving the nut, and uses the guide strip, the waste oil collection shell and the guide pipe to guide the outflowing oil, so that the oil draining tool of the utility model is easy to operate when draining oil, and the oil will not leak due to the tool, thereby polluting personnel, aircraft and venues;

[0016] (2) The sleeve of the utility model can be provided in various sizes and models, and can be adapted to the discharge devices of oil tanks of different models. When using, only the sleeve needs to be replaced, which is easy to operate and has a wide range of applications;

[0017] (3) The utility model has a drive nut and an auxiliary handle, which can be used with matching tools or manually driven without tools, further expanding the scope of application and reducing the difficulty of operation;

[0018] (4) During the oil discharge process, the utility model only needs to adjust the fixed bracket of the tooling to ensure that the tooling is stable and will not fall over. The operator does not need to hold it all the time, which reduces the difficulty of the operator's work.

[0019] In the present invention, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the subsequent description, and some advantages can become obvious from the description, or can be understood by implementing the present invention. The purpose and other advantages of the present invention can be achieved and obtained through the contents specifically pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are only used for the purpose of illustrating specific embodiments and are not to be considered as limiting the present invention. In the entire drawings, the same reference symbols represent the same components.

[0021] Figure 1 The utility model is a schematic structural diagram of the UAV fuel tank oil draining tooling.

[0022] Reference numerals:

[0023] 1-sleeve; 2-sleeve mounting rod; 3-guide bar; 4-waste oil collection shell; 5-auxiliary handle; 6-drive nut; 7-guide pipe; 8-bracket fixing seat; 9-fixing screw; 10-bracket; 11-telescopic bracket. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0025] Example 1

[0026] The purpose of the utility model is to provide a tooling used by a UAV oil tank draining device when draining oil, which makes the operation simple and convenient, and at the same time ensures that the operator will not be contaminated by oil during the draining process. The utility model is suitable for a draining device that uses a drain screw plug to drain oil, and the drain screw plug is arranged at the drain port of the draining device and blocks the drain port.

[0027] See also Figure 1 The utility model provides an unmanned aerial vehicle fuel tank oil draining tool, which includes a sleeve 1, a sleeve mounting rod 2, a guide bar 3, a waste oil collection shell 4, a driving nut 6 and a guide pipe 7.

[0028] The sleeve 1 has an upper end and a lower end, and the upper end can be matched with the drain plug of the drain device of the oil tank, so that the drain port of the drain device can be opened by screwing the drain plug. The lower end of the sleeve 1 has a threaded portion, which is suitable for threading with the top of the sleeve mounting rod 2. The sleeve 1 has multiple sizes and models, which can be adapted to different models of drain devices.

[0029] The sleeve mounting rod 2 is a rod member, a threaded hole is provided on the top thereof, and the bottom thereof is fixedly connected to the guide bar 3, preferably by welding.

[0030] A plurality of guide bars 3 are provided, which are fixedly connected to the bottom of the sleeve mounting rod 2. The plurality of guide bars 3 are evenly distributed along the circumference of the bottom of the sleeve mounting rod 2, and each guide bar 3 forms a certain angle with the sleeve mounting rod 2. The plurality of guide bars 3 are located on the same conical surface. There are preferably three guide bars 3. The bottom end of the guide bar 3 is fixedly connected to the inner surface of the waste oil collection housing 4, preferably by welding.

[0031] The waste oil collection housing 4 is funnel-shaped, and a plurality of guide bars 3 are fixedly connected to the inner surface of the waste oil collection housing 4 , so that the sleeve mounting rod 2 and the sleeve 1 are coaxial with the waste oil collection housing 4 .

[0032] The bottom of the waste oil collection housing 4 has an oil outlet. The outer periphery of the oil outlet of the waste oil collection housing 4 is fixedly connected with the lower driving nut 6 and the guide pipe 7 in sequence, preferably by welding.

[0033] When using the oil drain tool of the present embodiment 1, first place the open waste oil collection barrel directly below the guide pipe 7 to prepare for oil collection, then select a suitable sleeve 1 and sleeve mounting rod 2 according to the size of the drain plug of the drain device, then reliably dock the sleeve 1 with the drain plug of the drain device, and use a matching wrench to overlap the drive nut 6 of the oil drain tool to loosen the drain plug of the drain device through force transmission until the drain plug on the drain device is completely removed, thereby opening the oil drain port, and the oil flows out from the oil drain port, along the guide strip 3 into the waste oil collection shell 4, flows into the guide pipe 7 through the oil outlet, and finally falls into the open waste oil collection barrel. When no fuel is discharged from the oil drain port, the oil drain tool can be put away.

[0034] Example 2

[0035] On the basis of Example 1, the UAV fuel tank oil draining tool of Example 2 further includes an auxiliary handle 5 and / or a bracket mechanism.

[0036] The auxiliary handle 5 includes two U-shaped handles, one end of which is welded to the outer conical surface of the waste oil collection housing 4, and the other end is welded to the outer peripheral surface of the guide tube 7. The two handles are symmetrically arranged.

[0037] In the prior art, during the oil discharge process, the staff needs to hold the waste oil collector all the time, which easily causes work fatigue. To solve this technical problem, the UAV oil tank oil discharge tool also includes a bracket mechanism. The bracket mechanism includes a bracket fixing seat 8, a bracket 10, a telescopic bracket 11, and a fixing screw 9.

[0038] The bracket fixing seat 8 is an annular structure and is sleeved outside the guide tube 7. A plurality of threaded holes are evenly distributed on the circumference of the bracket fixing seat 8, and a plurality of fixing screws 9 are respectively arranged in the threaded holes. By screwing the fixing screws 9, the connection between the bracket fixing seat 8 and the guide tube 7 can be fixed or loosened, and the position of the bracket fixing seat 8 on the guide tube 7 can be adjusted.

[0039] A plurality of brackets 10 are also fixedly connected to the bracket fixing seat 8, and the plurality of brackets 10 are evenly distributed around the circumference of the bracket fixing seat 8. Each bracket 10 forms a certain angle with the guide tube 7, and the plurality of brackets 10 are on the same conical surface. A telescopic bracket 11 is detachably connected to the end of each bracket 10.

[0040] When using the oil draining tool of the present embodiment 2, first place the open waste oil collection barrel directly below the guide pipe 7 to prepare for oil collection, then select a suitable sleeve 1 and sleeve mounting rod 2 according to the size of the oil drain plug of the drain device, then reliably connect the sleeve 1 with the oil drain plug of the drain device, use a matching wrench to overlap the drive nut 6 of the oil drain tool to loosen the oil drain plug of the drain device through force transmission, and then use the auxiliary handle 5 to completely disassemble the oil drain plug of the drain device, thereby opening the oil drain port, and the oil flows out from the oil drain port, finally, according to the height of the waste oil collection barrel and the flatness of the ground, adjust the bracket mechanism to ensure that the oil drain tool is stable and reliable during the entire oil draining process and will not tip over, until no fuel is discharged from the oil drain port, and then the oil drain tool can be put away.

[0041] The beneficial effect of the present application is that when using the oil draining tool of the utility model to drain oil, there will be no leakage of oil due to the tool, which will pollute personnel, aircraft and venues. After the oil drain plug of the drainage device is disassembled, it is only necessary to adjust the fixed bracket of the tool during the oil draining process to ensure that the tool is stable and will not tip over. The operator does not need to hold it all the time, which reduces the difficulty of the operator's work.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A UAV fuel tank oil discharge tool, Features: The invention comprises a sleeve (1), a sleeve mounting rod (2), a guide strip (3), a waste oil collection shell (4), a drive nut (6) and a guide tube (7); wherein the sleeve (1) has an upper end and a lower end, the upper end can be matched with a liquid discharge device of an oil tank, and the lower end is detachably connected to the top of the sleeve mounting rod (2); the bottom of the sleeve mounting rod (2) is fixedly connected to the top of the guide strip (3), and the bottom end of the guide strip (3) is fixedly connected to the inner surface of the waste oil collection shell (4); the bottom of the waste oil collection shell (4) is fixedly connected to the top of the drive nut (6), and the bottom of the drive nut (6) is fixedly connected to the top of the guide tube (7).

2. The unmanned aerial vehicle fuel tank oil draining tool according to claim 1, It is characterized in that The waste oil collection shell (4) is in the shape of a funnel, and the bottom of the waste oil collection shell (4) is provided with an oil outlet hole.

3. The unmanned aerial vehicle fuel tank oil draining tool according to claim 1, It is characterized in that A plurality of the guide strips (3) are provided, and the plurality of the guide strips (3) are evenly distributed along the circumference of the bottom of the sleeve mounting rod (2), each of the guide strips (3) forms a certain angle with the sleeve mounting rod (2), and the plurality of the guide strips (3) are located on the same conical surface.

4. The unmanned aerial vehicle fuel tank oil draining tool according to claim 3, It is characterized in that The bottoms of the plurality of guide strips (3) are fixedly connected to the inner surface of the waste oil collection shell (4), so that the sleeve mounting rod (2) and the sleeve (1) are coaxial with the waste oil collection shell (4).

5. The unmanned aerial vehicle fuel tank oil draining tool according to claim 1, It is characterized in that An auxiliary handle (5) is also included.

6. The unmanned aerial vehicle fuel tank oil draining tool according to claim 5, It is characterized in that The auxiliary handle (5) comprises two U-shaped handle parts, one end of which is fixedly connected to the outer conical surface of the waste oil collection shell (4), and the other end of which is fixedly connected to the outer peripheral surface of the guide tube (7).

7. The UAV fuel tank draining tool according to any one of claims 1 to 6, It is characterized in that A bracket mechanism is also included.

8. The unmanned aerial vehicle fuel tank oil draining tool according to claim 7, It is characterized in that The support mechanism comprises a support fixing seat (8), a fixing screw (9), a support (10) and a telescopic support (11).

9. The unmanned aerial vehicle fuel tank oil draining tool according to claim 8, It is characterized in that The support fixing seat (8) is an annular structure and is sleeved outside the guide tube (7); a plurality of threaded holes are evenly distributed on the circumference of the support fixing seat (8), and a plurality of fixing screws (9) are respectively arranged in the threaded holes.

10. The unmanned aerial vehicle fuel tank oil draining tool according to claim 9, It is characterized in that A plurality of the brackets (10) are also fixedly connected to the bracket fixing seat (8), and the plurality of the brackets (10) are evenly distributed around the circumference of the bracket fixing seat (8); each of the brackets (10) forms a certain angle with the flow guide pipe (7), and the plurality of the brackets (10) are located on the same conical surface; and the end of each of the brackets (10) is detachably connected to one of the telescopic brackets (11).

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