Device for testing sealing performance of sealing gasket of fuel tank opening cover of unmanned aerial vehicle

Abstract

The utility model provides an unmanned aerial vehicle fuel tank opening cover sealing gasket sealing performance testing device, which comprises a box body, an opening frame, a sealing skin and a filling device, an opening is arranged on one side of the box body, the sealing skin is detachably arranged on the box body and seals the opening, a mounting opening is arranged on the sealing skin, and the filling device is arranged on the mounting opening. The opening frame is detachably arranged on the side, facing the box body, of the sealing skin, a detection opening communicated with the interior of the box body and the mounting opening is formed in the opening frame, the size of the detection opening is smaller than that of the mounting opening, and the filling equipment comprises gas filling equipment and / or liquid filling equipment. Compared with the prior art, the device for testing the sealing performance of the fuel tank cap sealing gasket of the unmanned aerial vehicle can meet the sealing performance verification requirements of the sealing gasket under different environmental conditions, can simulate the working conditions of the fuel tank under different flight attitudes of the unmanned aerial vehicle, further performs simulation verification on the sealing performance, and is convenient to operate, quick to mount and dismount and high in reliability. The device is simple in structure, high in reliability, light in weight, convenient to carry and wide in application range.

Description

TECHNICAL FIELD

[0001] The utility model relates to an unmanned plane technical field, concretely relates to an unmanned plane oil tank mouth lid sealing gasket sealing performance testing device. BACKGROUND

[0002] Unmanned plane has been developed rapidly at home and abroad, because it has the advantages such as high time efficiency, low cost, low loss, strong detection monitoring ability and wide coverage, and its application in military and civil aspects is becoming more and more extensive. The application of integral oil tank in medium and large unmanned plane is increasingly extensive, and the oil supply system is an important part of the unmanned plane system. Good sealing performance of the integral oil tank is the premise of ensuring stable fuel supply, and it is related to flight safety.

[0003] At present, although there is a device for testing the sealing performance of the oil tank mouth lid, there is no device for testing the sealing performance of the sealing gasket of the oil tank mouth lid. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the shortcomings and deficiencies in the prior art, and provides an unmanned plane oil tank mouth lid sealing gasket sealing performance testing device.

[0005] One embodiment of the utility model provides a kind of unmanned plane oil tank mouth lid sealing gasket sealing performance testing device, comprising: box body, mouth frame, sealing skin and filling equipment, the side of the box body is provided with opening, the sealing skin is detachably arranged on the box body, and the opening is closed, the sealing skin is provided with mounting port, the mouth frame is detachably arranged on the side of the sealing skin towards the box body, the mouth frame is provided with detection port that is communicated with the inside of the box body and the mounting port, the size of the detection port is less than the size of the mounting port, the filling equipment includes gas filling equipment and / or liquid filling equipment, the gas filling equipment is communicated with the box body, and the liquid filling equipment is communicated with the box body.

[0006] In some optional embodiments, the mounting port is adapted to the shape of the mouth lid of the oil tank.

[0007] In some optional embodiments, the sealing skin is detachably connected with the mouth frame and the box body by a plurality of threaded fastening pieces.

[0008] In some optional embodiments, when the filling equipment includes the gas filling equipment, the bottom of the gas filling equipment is provided with a bracket, and the bottom of the bracket is provided with a walking wheel assembly.

[0009] In some optional embodiments, the side of the box body is provided with a quick connector.

[0010] When the filling device comprises the gas filling device, the gas filling device is detachably connected with the quick connector through a first pipeline;

[0011] When the filling device comprises the liquid filling device, the liquid filling device is detachably connected with the quick connector through a second pipeline.

[0012] In some optional embodiments, one side of the box body is provided with a side opening, the side opening is provided with a side opening cover, and the quick connector is arranged on the side opening cover.

[0013] In some optional embodiments, a safety valve is arranged on the first pipeline.

[0014] In some optional embodiments, a manual on-off valve is arranged on the first pipeline.

[0015] In some optional embodiments, a gas pressure gauge is arranged on the first pipeline.

[0016] Compared with the prior art, the unmanned aerial vehicle oil tank cover gasket sealing performance testing device can meet the sealing gasket sealing performance verification requirements under different environmental conditions, can simulate the oil tank working condition under different flight attitudes of the unmanned aerial vehicle, and can further simulate and verify the sealing performance, is convenient to operate, fast to install and disassemble, simple in structure, high in reliability, light in weight, convenient to carry, and wide in use range.

[0017] In order to more clearly understand the utility model, the specific embodiments of the utility model will be described below in combination with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structure schematic view of a box body, an opening frame and a sealing skin of an embodiment of the utility model;

[0019] Figure 2 is an explosion of a box body, an opening frame, a sealing skin, an opening cover and a sealing gasket of an embodiment of the utility model;

[0020] Figure 3 is a structure schematic view of the unmanned aerial vehicle oil tank cover gasket sealing performance testing device of an embodiment of the utility model when the box body is connected with the gas filling device;

[0021] Figure 4 is a structure schematic view of the unmanned aerial vehicle oil tank cover gasket sealing performance testing device of an embodiment of the utility model when the box body is connected with the liquid filling device;

[0022] Figure 5 is a side structure schematic view of the gas filling device of an embodiment of the utility model;

[0023] Figure 6 Structure diagram of another side of the gas filling equipment of an embodiment of the present application.

[0024] Explanation of reference signs:

[0025] 10, box body; 11, opening; 12, folded edge; 13, quick connector; 14, side opening; 15, side opening cover; 20, mouth frame; 21, detection opening; 30, sealing skin; 31, mounting opening; 40, gas filling equipment; 41, bracket; 42, walking wheel assembly; 43, first pipeline; 44, safety valve; 45, hand-operated on-off valve; 46, air pressure gauge; 50, liquid filling equipment; 51, second pipeline; 60, tank cover; 70, sealing gasket; Specific implementation

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Please refer to Figures 1 to 4 The present application provides a sealing performance testing device for a tank cover sealing gasket of an unmanned aerial vehicle, comprising a box body 10, a mouth frame 20, a sealing skin 30 and a filling equipment. One side of the box body 10 is provided with an opening 11. The sealing skin 30 is detachably arranged on the box body 10 and closes the opening 11. The sealing skin 30 is provided with a mounting opening 31. The mouth frame 20 is detachably arranged on the side of the sealing skin 30 facing the box body 10. The mouth frame 20 is provided with a detection opening 21 communicating with the inside of the box body 10 and the mounting opening 31. The size of the detection opening is smaller than that of the mounting opening 31, so that the tank cover 60 is abutted and mounted on the sealing gasket 70 on the mouth frame 20. The filling equipment comprises a gas filling equipment 40 and / or a liquid filling equipment 50. The gas filling equipment 40 communicates with the box body 10. The liquid filling equipment 50 communicates with the box body 10.

[0027] The sealing gasket 70 is arranged on the mouth frame 20. The sealing gasket 70 is arranged around the detection opening. The sealing skin 30 cooperates with the mouth frame 20 to clamp the sealing gasket 70. The sealing gasket 70 can be adapted to sealing gaskets 70 of different thicknesses and different sizes. The sealing gasket 70 can be further fastened on the mouth frame 20 by a threaded member. The sealing gasket 70 to be tested can be cut into a shape matching the shape of the mouth frame 20 for easy installation. Of course, the mouth frame 20 and the sealing skin 30 can cooperate to clamp the sealing gasket 70. The sealing gasket 70 can also be tested without cutting, so that the sealing performance of the sealing gasket 70 with irregular outer contour can also be tested. The tank cover 60 of the tank is fixed in the mounting opening 31, closing the detection opening 21. The tank cover 60 of the tank can be fastened on the sealing skin 30 or the mouth frame 20 by a threaded member, and the tank cover 60 of the tank presses the sealing gasket 70 tightly on the mouth frame 20.

[0028] The gas filling device 40 can input gas with different pressures into the box body 10. The gas filling device 40 mainly adopts a gas pump to output gas into the box body 10.

[0029] The liquid filling device 50 component can input liquid into the sealed box body 10. The liquid filling device 50 mainly adopts a liquid storage box and a delivery pump. The liquid storage box is used to store liquid, and is connected with the delivery pump. The delivery pump is connected with the box body 10, and delivers liquid into the box body 10 through the delivery pump. The liquid can be gasoline, kerosene, diesel, cleaning agent or different liquids.

[0030] In some optional embodiments, the mounting port 31 is shaped to match the shape of the oil tank cover 60, so as to facilitate stable installation and positioning of the oil tank cover 60.

[0031] In some optional embodiments, the box body 10 is provided with a folded edge 12 arranged around the opening 11. The sealing skin 30 abuts against the folded edge 12 and is locked with the folded edge 12 through a threaded fastener. This is conducive to improving the stability and sealing performance of the connection between the sealing skin 30 and the box body 10.

[0032] In some optional embodiments, the sealing skin 30 is detachably connected with the port frame 20 and the box body 10 through a plurality of threaded locking members, so that the port frame 20 and the sealing skin 30 are locked with each other, and the sealing skin 30 achieves tight sealing of the opening 11. Of course, the sealing skin 30 can also be connected with the box body 10 or the port frame 20 through other ways, and is not limited to threaded fasteners.

[0033] Please refer to Figure 5 In some optional embodiments, when the filling device includes the gas filling device 40, the bottom of the gas filling device 40 is provided with a bracket 41, and the bottom of the bracket 41 is provided with a walking wheel assembly 42, so as to move the gas filling device 40.

[0034] Please refer to Figure 4 and Figure 6 In some optional embodiments, one side of the box body 10 is provided with a quick connector 13. When the filling device includes the gas filling device 40, the gas filling device 40 is detachably connected with the quick connector 13 through a first pipeline 43. The quick connector 13 facilitates quick assembly with the first pipeline 43, and realizes connection between the box body 10 and the gas filling device 40.

[0035] When the filling device includes the liquid filling device 50, the liquid filling device 50 is detachably connected with the quick connector 13 through a second pipeline 51. The quick connector 13 facilitates quick assembly with the second pipeline 51, and realizes connection between the box body 10 and the liquid filling device 50. The quick connector 13 facilitates switching of connection with the first pipeline 43 and the second pipeline 51, and facilitates different tests.

[0036] In some alternative embodiments, a side opening 14 is provided on one side of the box body 10, and a side opening cover 15 is provided on the side opening 14, and the quick connector 13 is arranged on the side opening cover 15, so that the quick connector 13 is installed. The side opening cover 15 can be locked on the box body 10 by a threaded part. The side opening 14 can also facilitate the quick pouring or discharging of liquid during the test.

[0037] In some alternative embodiments, a safety valve 44 is arranged on the first pipeline 43, and the safety valve 44 is used to control the pressure of the first pipeline 43 to be less than a specified value, so as to avoid the explosion of the box body 10 due to the excessive gas pressure in the box body 10.

[0038] In some alternative embodiments, a manual on-off valve 45 is arranged on the first pipeline 43, and the manual on-off valve is convenient for the staff to open or close the first pipeline 43, so as to control the gas filling device 40 to fill the gas into the box body 10 through the first pipeline 43.

[0039] In some alternative embodiments, a gas pressure gauge 46 is arranged on the first pipeline 43, and the gas pressure gauge 46 is used to detect the size of the gas pressure in the box body 10, so as to facilitate the staff to check.

[0040] The unmanned aerial vehicle oil tank opening cover sealing gasket sealing performance test device can perform different tests on the sealing gasket 70, for example:

[0041] In the air tightness test, the sealing gasket 70 and the opening cover 60 of the oil tank are assembled, and then the gas filling device 40 is used to fill the gas into the box body 10, so that the gas pressure in the box body 10 is increased, and the gas pressure in the box body 10 is maintained at a preset gas pressure higher than the atmospheric pressure. The gap between the opening cover 60 of the oil tank and the sealing skin 30 is detected by soap water, and whether there is a bubble is observed to determine whether there is a leakage point, and the sealing performance of the sealing gasket 70 is tested. In this embodiment, the preset gas pressure is 42±2KPa, and then the gas pressure is maintained for 20 minutes. Whether the gas pressure decreases is observed. If the gas pressure decreases by not more than 0.5KPa and there is no leakage point, it indicates that the sealing gasket 70 meets the requirements.

[0042] In the oil tightness test, the liquid is filled into the sealing box body 10, and the opening cover 60 is placed downward for a period of time. Whether there is leakage is observed by visual observation, and the sealing performance of the sealing gasket 70 is tested. During the test, the box body 10 must be grounded before oil filling, and the grounding is maintained during the process, so as to avoid dangerous situations. Whether there is oil leakage can be detected by coating chalk powder.

[0043] In the air and oil tightness test, the liquid filling device 50 is used to fill the RJ-1 cleaning agent into the box body 10 to a volume of 80% of the box body 10. After the sealing gasket 70 and the opening cover 60 of the oil tank are installed, the box body is pressurized to a preset gas pressure and is maintained for 2 hours. If there is no leakage, the sealing gasket 70 is qualified.

[0044] During hydraulic test, different amounts of liquid can be filled into the box 10 through the liquid filling device 50, and the liquid in the box 10 is at different liquid levels to detect the sealing performance of the sealing gasket 70 at different liquid levels. In addition, the box 10 is filled with liquid and the quick connector 13 of the side cover 15 is sealed, and the box 10 is inverted (the cover 60 is downward and located at the bottom of the box 10) for a predetermined test time and / or the box 10 is placed in a predetermined test environment, which can realize the sealing performance test of the sealing gasket 70 under different environmental conditions.

[0045] During the pressureless oil filling parking test: the RJ-1 cleaning agent is filled into the box 10 through the liquid filling device 50 to 80% of the volume of the box 10, the sealing gasket 70 and the cover 60 of the oil tank are installed, the box 10 is inverted so that the cover 60 is downward and located at the bottom of the box 10, and the parking is observed for 24 hours.

[0046] The test liquid can be selected from various media to meet the test requirements, for example, gasoline, kerosene, diesel oil, cleaning agent, etc.

[0047] Of course, the unmanned aerial vehicle oil tank cover sealing gasket sealing performance test device of the present application can perform test operations including but not limited to the above test operations.

[0048] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An unmanned aerial vehicle fuel tank port cover gasket sealing performance testing device, characterized in that, The box body, the mouth frame, the sealing skin and the filling device, one side of the box body is provided with an opening, the sealing skin is detachably arranged on the box body and closes the opening, the sealing skin is provided with a mounting port, the mouth frame is detachably arranged on the side of the sealing skin facing the box body, the mouth frame is provided with a detection port communicating with the inside of the box body and the mounting port, the size of the detection port is smaller than the size of the mounting port, the filling device includes a gas filling device and / or a liquid filling device, the gas filling device communicates with the box body, and the liquid filling device communicates with the box body. The mounting port is matched with the shape of the cover of the oil tank.

2. The device according to claim 1, characterized in that: The box body is provided with a folding edge arranged around the opening, and the sealing skin abuts on the folding edge.

3. The device according to claim 1, characterized in that: The sealing skin is detachably connected with the mouth frame and the box body through a plurality of threaded locking pieces.

4. The device according to claim 1, characterized in that: When the filling device includes the gas filling device, the bottom of the gas filling device is provided with a bracket, and the bottom of the bracket is provided with a walking wheel assembly.

5. The device according to claim 1, characterized in that: One side of the box body is provided with a quick connector; 6. The sealing performance testing device for the seal of the cover of the oil tank of the unmanned aerial vehicle according to any one of claims 1 to 5, characterized in that: When the filling device includes the gas filling device, the gas filling device is detachably connected with the quick connector through a first pipeline; When the filling device includes the liquid filling device, the liquid filling device is detachably connected with the quick connector through a second pipeline. One side of the box body is provided with a side port, the side port is provided with a side port cover, and the quick connector is arranged on the side port cover.

7. The device of claim 6, wherein: The first pipeline is provided with a safety valve.

8. The device of claim 6, wherein: The first pipeline is provided with a manual on-off valve.

9. The device of claim 6, wherein: The first pipeline is provided with a gas pressure gauge.

10. The device of claim 6, wherein: ​

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