Anti-bubble unmanned aerial vehicle soft multi-layer oil tank

Abstract

The utility model relates to the field of unmanned aerial vehicles, and discloses an anti-bubble unmanned aerial vehicle soft multi-layer oil tank which comprises a shell, the inner wall of the shell is fixedly connected with an inner oil bag, the inner oil bag is made of a flexible breathing film, and the lower surface of the outer wall of the inner oil bag is connected with the inner wall of the shell. An air storage layer is arranged in the middle of the inner oil bag and the shell, an extraction opening is formed in the joint of the outer wall of the inner oil bag and the shell, an oil passing opening is fixedly connected to the inner wall of the inner oil bag, an air pressure sensor is installed at the top end of the shell, and a balance assembly is arranged on the outer wall of the shell and comprises a ventilation sleeve. The ventilation sleeve is fixedly connected to the outer wall of the shell. According to the utility model, by adopting the multi-layer design, when the unmanned aerial vehicle rises to the high altitude, air can be injected into the air storage layer through the ventilation sleeve, so that the external air pressure of the inner oil bag can be kept stable, even if the total amount of fuel oil in the device is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to unmanned plane field especially relates to a soft multi -layer oil tank of unmanned plane of preventing air bubble. BACKGROUND

[0002] The oil tank is a kind of storage container, mainly for vehicle, ship, aircraft and other vehicles provide sustained energy source, to ensure that they can normally drive or fly, at the same time, the hard shell of oil tank can provide protection to the liquid inside, so as to reduce the probability of oil leakage.

[0003] In prior art, unmanned plane generally uses single-layer oil tank, when unmanned plane ascends, due to the decrease of atmospheric pressure, so air bubble will be generated in the oil tank, so when supplying oil for engine, air bubble and oil will enter the inside of engine simultaneously, will affect the normal work of engine, to solve the above problems, a soft multi -layer oil tank of unmanned plane of preventing air bubble is provided. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides a soft multi -layer oil tank of unmanned plane of preventing air bubble, aims at improving the problem of "air bubble will appear in the oil tank due to atmospheric pressure change when unmanned plane ascends" in prior art.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme: a soft multi -layer oil tank of unmanned plane of preventing air bubble, including shell, the inner wall of the shell is fixedly connected with inner oil bag, the inner oil bag is made of flexible breathing membrane, the lower surface of the outer wall of the inner oil bag and the inner wall of the shell are connected with each other, the middle position of the inner oil bag and the shell is set as gas storage layer, the connecting portion of the outer wall of the inner oil bag and the shell is provided with suction port, the inner wall of the inner oil bag is fixedly connected with oil port, the top of the shell is provided with air pressure sensor, the outer wall of the shell is provided with balance assembly, the balance assembly includes air sleeve, the air sleeve is fixedly connected to the outer wall of the shell, the inner wall of the air sleeve is slidably connected with sealing cover, the inner wall of the sealing cover is provided with air hole.

[0006] As a further description of the above technical scheme:

[0007] The balance assembly further includes sealing ring, and the sealing ring is fixedly connected to the inner wall of the air sleeve.

[0008] As a further description of the above technical scheme:

[0009] The inner wall of the air sleeve is slidably connected with control rod, the inner wall of the control rod is fixedly connected with connecting sleeve, and the sealing cover penetrates and is slidably connected to the upper surface of the connecting sleeve.

[0010] As a further description of the above technical scheme:

[0011] The lower surface of the sealing cover is fixedly connected with a reset spring, the lower surface of the reset spring is fixedly connected with a supporting block, and the supporting block is fixedly connected to the inner wall of the connecting sleeve.

[0012] As a further description of the above technical solution:

[0013] The sealing cover and the reset spring are provided in multiple groups, and the multiple groups of the sealing cover and the reset spring are symmetrically arranged with the center line of the supporting block as the axis of symmetry.

[0014] As a further description of the above technical solution:

[0015] The outer wall of the control rod is fixedly connected with a sealing sleeve, and the sealing sleeve slides on the outer wall of the ventilation sleeve.

[0016] As a further description of the above technical solution:

[0017] The upper surface of the shell is fixedly connected with an electric telescopic rod, the output shaft of the electric telescopic rod is fixedly connected with an adjusting sleeve, and the adjusting sleeve is fixedly connected to the upper surface of the sealing sleeve.

[0018] As a further description of the above technical solution:

[0019] The outer wall of the shell is provided with an air outlet, and the right end of the air outlet is provided with a closing cover.

[0020] The utility model has the advantages of the following beneficial effects:

[0021] 1、The utility model discloses a multi-layer design, when the unmanned plane rises to high altitude, air can be injected into the gas storage layer through the ventilation sleeve, so that the air pressure outside the inner oil bag can be kept stable, even if the total amount of fuel in the device is reduced, the internal pressure of the gas storage layer can be kept stable through continuous pressurization, and the overall device has good anti-bubble effect.

[0022] 2、The utility model discloses an adjustable balancing device, when the fuel in the inner oil bag is gasified and the gas pressure of the gas storage layer increases, the electric telescopic rod can drive the sealing sleeve to move downwards, the sealing sleeve can drive the sealing cover and the sealing ring to be attached, so that the gas can be prevented from continuing to enter the inside of the gas storage layer, and the overall device has good stability. DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the overall device in the utility model;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the overall device in the utility model;

[0025] Figure 3The utility model discloses a balanced three-dimensional structure section split schematic view.

[0026] Figure 4 The utility model discloses a three-dimensional structure section schematic view of connecting sleeve.

[0027] Legend:

[0028] 1, shell, 2, suction port, 3, oil passage, 4, gas outlet, 5, gas pressure sensor, 6, balance assembly, 61, electric telescopic rod, 62, adjusting sleeve, 63, air sleeve, 64, sealing ring, 65, sealing cover, 66, air hole, 67, connecting sleeve, 68, control rod, 69, sealing sleeve, 610, reset spring, 611, support block, 7, inner oil bag, 8, closed cover, 9, gas storage layer. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0030] Refer to Figure 1 Figure 3 An embodiment provided by the utility model: a bubble-proof unmanned aerial vehicle soft multi-layer oil tank, including the shell 1 for supporting the whole device, the inner wall of shell 1 is fixedly connected with the inner oil bag 7 for storing fuel, the inner oil bag 7 is made of flexible breathing membrane, the flexible breathing membrane material makes fuel gas can pass through the inner oil bag 7, so that the internal pressure of the inner oil bag 7 can be prevented from being too large, the lower surface of the outer wall of the inner oil bag 7 and the inner wall of the shell 1 are connected with each other, the middle position of the inner oil bag 7 and the shell 1 is set as the gas storage layer 9, the gas storage layer 9 can be used to store gas, so that the external pressure of the inner oil bag 7 can be guaranteed to be stable, the connecting portion of the outer wall of the inner oil bag 7 and the shell 1 is provided with the suction port 2 for sucking out the excess gas in the inner oil bag 7, the inner wall of the inner oil bag 7 is fixedly connected with the oil passage 3 for oil supply body to pass through the inner oil bag 7, the top of the shell 1 is provided with the gas pressure sensor 5 for detecting the internal pressure of the inner oil bag 7, the outer wall of the shell 1 is provided with the balance assembly 6 for controlling the gas to pass through the shell 1, the balance assembly 6 includes the air sleeve 63 for gas passing, the air sleeve 63 is fixedly connected to the outer wall of the shell 1, the inner wall of the air sleeve 63 is slidably connected with the sealing cover 65 for blocking the gas, the inner wall of the sealing cover 65 is provided with the air hole 66 for the gas to pass through the sealing cover 65.

[0031] Refer to Figure 2 Figure 4 ​​, the balance assembly 6 further comprises a sealing ring 64 used to block the air hole 66, the sealing ring 64 is fixedly connected to the inner wall of the air sleeve 63, when the sealing cover 65 is attached to the sealing ring 64, the air hole 66 will be blocked and unable to pass through the gas, the inner wall of the air sleeve 63 is slidingly connected with a control rod 68 used to drive the connecting sleeve 67 to move, the inner wall of the control rod 68 is fixedly connected with the connecting sleeve 67 used to accommodate the return spring 610, the sealing cover 65 penetrates and is slidingly connected to the upper surface of the connecting sleeve 67, the lower surface of the sealing cover 65 is fixedly connected with the return spring 610 used to pull the sealing cover 65, the lower surface of the return spring 610 is fixedly connected with the support block 611 used to support the return spring 610, the support block 611 is fixedly connected to the inner wall of the connecting sleeve 67, the return spring 610 will pull the sealing cover 65 inward at all times under the support of the support block 611, the sealing cover 65 and the return spring 610 are provided in multiple groups, the multiple groups of sealing cover 65 and return spring 610 are symmetrically arranged with the center line of the support block 611 as the axis of symmetry, and the two groups of sealing cover 65 can control the air inlet and air outlet of the air sleeve 63 respectively.

[0032] With reference to Figure 2 - Figure 4 , the outer wall of the control rod 68 is fixedly connected with a sealing sleeve 69 used to close the opening of the outer wall of the air sleeve 63, the sealing sleeve 69 slides on the outer wall of the air sleeve 63, the upper surface of the outer shell 1 is fixedly connected with a motor telescopic rod 61 used to drive the sealing sleeve 69 to move, the output shaft of the motor telescopic rod 61 is fixedly connected with an adjusting sleeve 62 used to transmit motion, the adjusting sleeve 62 is fixedly connected to the upper surface of the sealing sleeve 69, when the adjusting sleeve 62 moves up and down, the sealing sleeve 69 will also be driven to move synchronously, the outer wall of the outer shell 1 is provided with an air outlet 4 used to discharge excess gas inside the gas storage layer 9, and the right end of the air outlet 4 is provided with a closure cover 8 used to close the opening of the air outlet 4.

[0033] Working principle: before the unmanned aerial vehicle takes off, the excess gas inside the inner oil bag 7 is pumped out through the air outlet 2, so that the inner oil bag 7 is in a suitable pressure state, and then the air outlet 2 is closed. At the same time, check whether the closure cover 8 seals the air outlet 4, so as to ensure that the gas storage layer 9 is in a closed state.

[0034] When the air pressure sensor 5 detects a decrease in air pressure after the UAV takes off, the electric telescopic rod 61 drives the adjusting sleeve 62 to move upward, the adjusting sleeve 62 drives the sealing sleeve 69 to move upward, the sealing sleeve 69 drives the connecting sleeve 67 to move upward through the control rod 68, the connecting sleeve 67 drives the sealing cover 65 below the connecting sleeve 67 to move upward through the support block 611 and the reset spring 610, so that the sealing cover 65 in the group adheres to the sealing ring 64, so that the whole device cannot exhaust air outward, and at the same time, air can be supplied to the inside of the device through the air supply device. After the gas enters the inside of the air supply sleeve 63 from the top, it will extrude the sealing cover 65 to drive it to move downward and separate from the lower surface of the sealing ring 64. At this time, the air hole 66 will be exposed, and the gas can enter the inside of the gas storage layer 9 through the air hole 66. When the device is not supplied with air, the reset spring 610 will pull the sealing cover 65 to reset it.

[0035] When the fuel in the inner fuel bag 7 evaporates and causes the air pressure in the gas storage layer 9 to be too large, the electric telescopic rod 61 can drive the adjusting sleeve 62 to move downward, the adjusting sleeve 62 drives the sealing sleeve 69, the control rod 68, and the connecting sleeve 67 to move downward, so that the sealing cover 65 above the connecting sleeve 67 adheres to the sealing ring 64. At this time, the device can only exhaust air outward and cannot input air inward, so that the device can be prevented from being damaged due to the air pressure in the gas storage layer 9 being too large.

[0036] Finally, it should be noted that: the above only describes preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An anti-bubble soft multi-layer fuel tank for unmanned aerial vehicles, comprising a shell (1), characterized in that: The inner wall of the shell (1) is fixedly connected with an inner oil bag (7), the inner oil bag (7) is made of flexible breathing membrane, the lower surface of the outer wall of the inner oil bag (7) and the inner wall of the shell (1) are connected with each other, the middle position of the inner oil bag (7) and the shell (1) is provided as a gas storage layer (9), the connecting position of the outer wall of the inner oil bag (7) and the shell (1) is provided with a gas extraction port (2), the inner wall of the inner oil bag (7) is fixedly connected with an oil passage (3), the top end of the shell (1) is provided with a gas pressure sensor (5), the outer wall of the shell (1) is provided with a balance assembly (6), the balance assembly (6) comprises a ventilation sleeve (63), the ventilation sleeve (63) is fixedly connected to the outer wall of the shell (1), the inner wall of the ventilation sleeve (63) is slidably connected with a sealing cover (65), and the inner wall of the sealing cover (65) is provided with a ventilation hole (66).

2. The bubble-free soft multi-layer tank for UAVs according to claim 1, characterized in that: The balance assembly (6) further comprises a sealing ring (64), and the sealing ring (64) is fixedly connected to the inner wall of the ventilation sleeve (63).

3. The bubble-free soft multi-layer tank for UAVs according to claim 2, characterized in that: The inner wall of the ventilation sleeve (63) is slidably connected with a control rod (68), the inner wall of the control rod (68) is fixedly connected with a connecting sleeve (67), and the sealing cover (65) penetrates and is slidably connected to the upper surface of the connecting sleeve (67).

4. The bubble-free soft multi-layer tank for UAVs according to claim 3, characterized in that: The lower surface of the sealing cover (65) is fixedly connected with a return spring (610), the lower surface of the return spring (610) is fixedly connected with a supporting block (611), and the supporting block (611) is fixedly connected to the inner wall of the connecting sleeve (67).

5. The bubble-free soft multi-layer tank for UAVs according to claim 4, characterized in that: The sealing cover (65) and the return spring (610) are provided in multiple groups, and the multiple groups of the sealing cover (65) and the return spring (610) are symmetrically arranged with the center line of the supporting block (611) as the axis of symmetry.

6. The bubble-free soft multi-layer tank for UAVs according to claim 5, characterized in that: The outer wall of the control rod (68) is fixedly connected with a sealing sleeve (69), and the sealing sleeve (69) slides on the outer wall of the ventilation sleeve (63).

7. The bubble-free soft multi-layer tank for UAVs according to claim 6, characterized in that: The upper surface of the shell (1) is fixedly connected with an electric telescopic rod (61), the output shaft of the electric telescopic rod (61) is fixedly connected with an adjusting sleeve (62), and the adjusting sleeve (62) is fixedly connected to the upper surface of the sealing sleeve (69).

8. The bubble-free soft multi-layer tank for UAVs according to claim 1, characterized in that: The outer wall of the shell (1) is provided with an air outlet (4), and the right end of the air outlet (4) is provided with a sealing cover (8).

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