Aircraft fuel tank sedimentation device

Abstract

The application discloses an aircraft fuel tank sediment discharging device and belongs to the technical field of aircraft fuel tank maintenance. The device comprises a receiving bucket, a top plate is fixed to the top end of the receiving bucket, a connecting seat is fixed to the top end side of the top plate, an oil delivery pipe is inserted into the connecting seat, a sealing assembly is arranged in the connecting seat, a column is rotatably connected to the center of the bottom side wall of the receiving bucket, a bottom shaking assembly is arranged at the bottom of the receiving bucket, and a wall cleaning assembly is connected to the column. The sealing assembly can conveniently release the fixation of the oil delivery pipe in the connecting seat, so that the oil delivery pipe can be conveniently taken out for cleaning or replacement. The inner side wall of the receiving bucket is fully cleaned by the wall cleaning assembly, the side wall of the receiving bucket is continuously knocked by the bottom shaking assembly, the side wall of the receiving bucket continuously vibrates, the falling of stubborn impurities adhered to the inner side wall of the receiving bucket is accelerated, the deposition of the impurities at the bottom of the receiving bucket is prevented, and the cleaning effect and cleaning efficiency of the interior of the receiving bucket are improved.

Description

Technical Field

[0001] This invention belongs to the field of aircraft fuel tank maintenance technology, specifically relating to an aircraft fuel tank sediment removal device. Background Technology

[0002] Due to temperature changes, water vapor can easily form inside aircraft fuel tanks. This water vapor condenses into water and mixes with the aircraft fuel. In addition, it is difficult for aircraft fuel to be 100% pure, and there will be a certain amount of condensation and impurities. After the aircraft has been parked for a period of time, the condensation and impurities will settle together at the bottom of the fuel tank. It is necessary to use an aircraft fuel tank sedimentation device to drain the sediment to ensure the safety of the aircraft fuel.

[0003] For example, Chinese Patent Publication No. CN102431655A discloses a telescopic fuel draining and settling tool, comprising an opening device, a holding cup, a telescopic rod, a locking device, and a metal bucket with a magnetic base. This telescopic fuel draining and settling tool can be used to open the fuel draining and settling valve on an aircraft, collecting the settling discharged from the valve and introducing it into the fuel bucket below. This telescopic fuel draining and settling tool consists of two sets of rods, inner and outer, connected by a locking device. When the locking device is loosened and tightened, the inner rod slides within the outer rod; when the locking device is tightened, the inner rod expands and locks itself at any position within the outer rod. The fuel tank draining and settling device of this invention has a highly adjustable function, thus adapting to different wing heights. It is fixed between the aircraft wing and the ground, allowing the fuel draining and settling work to be completed without manual lifting.

[0004] The above application still has shortcomings. The oil pipeline in the above application is prone to a lot of dirt or even blockage after long-term use, making it difficult to remove for maintenance. At the same time, a lot of impurities tend to adhere to the inner wall of the oil tank, making it difficult to clean the inside and affecting the overall use.

[0005] Therefore, there is a need for an aircraft fuel tank sedimentation device to solve the problems mentioned in the background art. Summary of the Invention

[0006] The purpose of this invention is to provide a sediment discharge device for aircraft fuel tanks to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an aircraft fuel tank sedimentation device, comprising a receiving tank, a top plate fixed to the top of the receiving tank, a connecting seat fixed to the top side of the top of the top plate, an oil pipe inserted into the connecting seat, a sealing component for sealing the oil pipe inserted into the connecting seat, a column rod rotatably connected to the center of the bottom side wall of the receiving tank, a motor disposed below the receiving tank, the output end of the motor being fixed to the bottom end of the column rod, a bottom-vibrating component for striking the side wall of the receiving tank being disposed at the bottom of the receiving tank, and a wall-cleaning component connected to the column rod.

[0008] It should be noted in the solution that the sealing component includes an annular rubber block embedded in the inner wall of the connector, and the annular rubber block has a cavity inside.

[0009] It is worth noting that a liquid cylinder communicating with the cavity is fixed on the outer wall of the connecting seat, a connecting rod is inserted inside the liquid cylinder, and a piston plate that fits tightly against the inner wall of the liquid cylinder is fixed at the end of the connecting rod.

[0010] Furthermore, it should be noted that a protruding post is fixed on the outer wall of the liquid cylinder, and an L-shaped groove is provided on the side wall of the outer sleeve to slide and adapt to the protruding post.

[0011] In a preferred embodiment, a rotating head plate is fixed to the end of the outer sleeve, and a plurality of convex ribs arranged in a ring are provided on the side of the rotating head plate, and a rubber sleeve is fitted onto the side of the convex column.

[0012] In a preferred embodiment, the wall cleaning assembly includes a groove formed on the side of the column and arranged along the length of the column. A rod is slidably inserted into the groove. A connecting rod b is fixed to the bottom end of the rod. A connecting rod a, arranged parallel to the rod, is fixed to the end of the connecting rod b away from the rod. Densely distributed bristles are fixed to the sides of the connecting rods a and b. The bristles are in contact with the inner wall of the receiving tank. A discharge pipe is fixed to the outer wall of the receiving tank, and a valve is installed on the discharge pipe.

[0013] In a preferred embodiment, a top post is fixed to the top of the insertion rod, and a pressure plate that limits the position of the top post is rotatably connected to the side of the top of the rod.

[0014] In a preferred embodiment, the vibrating bottom assembly includes a plurality of circular protrusions b arranged in a ring on the outer side wall of the bottom end of the receiving tank. A ring plate is fixed to the bottom end of the column rod, and a spring plate is fixed to the side of the ring plate. A circular protrusion a is fixed to the end of the spring plate away from the ring plate, which slides in cooperation with the circular protrusions b.

[0015] In a preferred embodiment, the bottom of the receiving bucket is fixed with a plurality of symmetrically distributed support rods, the bottom of the plurality of support rods is jointly fixed with a base plate, the bottom of the base plate is fixed with a plurality of symmetrically distributed support leg rods, and the bottom of the plurality of support leg rods is fixed with casters.

[0016] In a preferred embodiment, a vertical plate is fixed to one end of the base plate, and an opening is provided at the top of the vertical plate.

[0017] Compared with the prior art, the sediment removal device for aircraft fuel tanks provided by the present invention has at least the following beneficial effects: (1) The sealing components can be conveniently released from the connection seat, so that the oil pipeline can be easily removed for cleaning or replacement, which can effectively improve the convenience of later maintenance of the oil pipeline and improve maintenance efficiency.

[0018] (2) When it is necessary to clean the inside of the receiving tank, the output end of the motor drives the column to rotate, thereby driving the wall cleaning component to thoroughly clean the inner wall of the receiving tank, removing the impurities adhering to the inner wall of the receiving tank, effectively improving the cleaning effect of the inside of the receiving tank and reducing the amount of cleaning and maintenance work of the inside of the receiving tank.

[0019] (3) When the column rotates, the vibration bottom assembly is driven to work synchronously through the column, thereby continuously knocking on the side wall of the receiving bucket through the vibration bottom assembly, causing the side wall of the receiving bucket to vibrate continuously, accelerating the falling off of stubborn impurities adhering to the inner side wall of the receiving bucket, preventing impurities from accumulating at the bottom of the receiving bucket, and further improving the cleaning effect and cleaning efficiency of the inside of the receiving bucket. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall front view of the present invention; Figure 3 This is a partial structural diagram of the sealing component of the present invention; Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the internal structure of the receiving bucket of the present invention; Figure 6 for Figure 5 Enlarged structural diagram at point B; Figure 7 This is a partial structural diagram of the wall cleaning component of the present invention. Figure 1 ; Figure 8 This is a partial structural diagram of the wall cleaning component of the present invention. Figure 2 ; Figure 9 This is a partial structural diagram of the wall cleaning component of the present invention. Figure 3 ; Figure 10 This is a partial structural diagram of the shock-absorbing base assembly of the present invention.

[0021] In the diagram: 1. Sealing assembly; 101. Connecting rod; 102. Piston plate; 103. Outer sleeve; 104. Liquid cylinder; 105. Annular rubber block; 106. Cavity; 107. Rotating head plate; 108. Rib; 109. L-shaped groove; 110. Protruding column; 111. Rubber sleeve; 2. Vibration base assembly; 201. Ring plate; 202. Spring plate; 203. Circular protrusion a; 204. Circular 3. Protrusion b; 4. Cleaning assembly; 5. Connecting rod a; 6. Insert rod; 7. Connecting rod b; 8. Brush bristles; 9. Top column; 10. Pressure plate; 11. Groove; 12. Receiving bucket; 13. Top plate; 14. Motor; 15. Support rod; 16. Base plate; 27. Vertical plate; 18. Through port; 19. Connecting seat; 20. Oil pipe; 21. Outrigger rod; 22. Caster wheel; 33. Column rod. Detailed Implementation

[0022] The present invention will be further described below with reference to embodiments.

[0023] Please see Figure 1-10This invention provides a sedimentation device for an aircraft fuel tank, comprising a receiving tank 4, a top plate 5 fixed to the top of the receiving tank 4, a connecting seat 11 fixed to the top side of the top of the top plate 5, an oil supply pipe 12 inserted into the connecting seat 11, and a sealing assembly 1 for sealing the oil supply pipe 12 inserted into the connecting seat 11. A column rod 15 is rotatably connected to the center of the bottom side wall of the receiving tank 4, a motor 6 is disposed below the receiving tank 4, and the output end of the motor 6 is fixed to the bottom end of the column rod 15. A striking mechanism is provided at the bottom of the receiving tank 4 to strike the side wall of the receiving tank 4. The bottom-vibrating component 2 and the column rod 15 are connected to the wall-cleaning component 3. In use, one end of the oil pipe 12 is inserted into the connecting seat 11, and the sealing component 1 clamps the end of the oil pipe 12 into the connecting seat 11 while simultaneously sealing the gap between the outer wall of the oil pipe 12 and the inner wall of the connecting seat 11, thus sealing the end of the oil pipe 12 into the connecting seat 11. The other end of the oil pipe 12 is inserted into the oil tank. Residual oil and impurities at the bottom of the tank are released through the oil pipe 12 and sealed and transported into the receiving tank 4. The receiving tank 4 is used for storage. When the oil pipeline 12 needs to be removed for cleaning and maintenance, the sealing component 1 can easily release the oil pipeline 12 from the connecting seat 11, allowing for easy removal for cleaning or replacement. This effectively improves the convenience and efficiency of subsequent maintenance of the oil pipeline 12. When the inside of the receiving tank 4 needs to be cleaned, cleaning fluid is introduced into the receiving tank 4, and the motor 6 is started. The output of the motor 6 drives the column rod 15 to rotate, thereby driving the wall cleaning assembly through the column rod 15. Component 3 thoroughly cleans the inner wall of the receiving tank 4, removing impurities adhering to the inner wall of the receiving tank 4, effectively improving the cleaning effect inside the receiving tank 4 and reducing the amount of cleaning and maintenance work inside the receiving tank 4; when the column rod 15 rotates, it synchronously drives the bottom vibration component 2 to work, thereby continuously tapping the side wall of the receiving tank 4 through the bottom vibration component 2, causing the side wall of the receiving tank 4 to generate continuous vibration, accelerating the falling off of stubborn impurities adhering to the inner wall of the receiving tank 4, and preventing impurities from accumulating at the bottom of the receiving tank 4.

[0024] Further as Figure 1 , Figure 4 and Figure 6As shown, it is worth noting that the sealing assembly 1 includes an annular rubber block 105 embedded in the inner wall of the connecting seat 11. The annular rubber block 105 has a cavity 106 inside. A liquid cylinder 104 communicating with the cavity 106 is fixed to the outer wall of the connecting seat 11. A connecting rod 101 is inserted inside the liquid cylinder 104, and a piston plate 102 that fits tightly against the inner wall of the liquid cylinder 104 is fixed to the end of the connecting rod 101. In use, by inserting one end of the oil pipe 12 into the connecting seat 11, the liquid cylinder 104 is filled with a certain amount of liquid, which can be water or hydraulic oil. By pushing the outer sleeve 103, the outer sleeve 103 moves the connecting rod 101 and the piston plate 102 within the liquid cylinder 104, thereby forcing the liquid inside the liquid cylinder 104 into the cavity 106 through the piston plate 102. The internal hydraulic pressure causes the annular rubber block 105 to expand, causing its sidewall to press tightly against the outer wall of the oil pipe 12. This clamps the end of the oil pipe 12 into the connecting seat 11 and fully seals the gap between the outer wall of the oil pipe 12 and the inner wall of the connecting seat 11, thus sealing the end of the oil pipe 12 into the connecting seat 11. When the oil pipe 12 needs to be removed for cleaning and maintenance, the outer sleeve 103 is pulled in the opposite direction, causing the piston plate 102 to move in the opposite direction inside the liquid cylinder 104. This releases the hydraulic pressure inside the cavity 106, thus releasing the expansion of the annular rubber block 105 and releasing the sealing clamp on the oil pipe 12. The oil pipe 12 can then be easily removed for cleaning or replacement, effectively improving the convenience and efficiency of subsequent maintenance of the oil pipe 12.

[0025] Further as Figure 4 As shown, it is worth noting that a protruding post 110 is fixed on the outer wall of the liquid cylinder 104, and an L-shaped groove 109 is provided on the side wall of the outer sleeve 103 to slide and adapt to the protruding post 110. In specific operation, the outer sleeve 103 is locked by inserting the protruding post 110 into the limiting section of the L-shaped groove 109, thereby ensuring the hydraulic stability of the piston plate 102, that is, ensuring the stable expansion and sealing of the annular rubber block 105.

[0026] Further as Figure 4 , Figure 5 and Figure 6 As shown, it is worth noting that a rotating head plate 107 is fixed to the end of the outer sleeve 103. Multiple annularly distributed protruding ribs 108 are provided on the side of the rotating head plate 107, and a rubber sleeve 111 is fitted onto the side of the protruding post 110. In actual operation, the rotating head plate 107 facilitates the pushing of the outer sleeve 103, making operation convenient. The rubber sleeve 111 increases the friction of the protruding post 110 within the limiting section of the L-shaped slide groove 109, thereby improving the locking stability of the outer sleeve 103.

[0027] Further as Figure 7 , Figure 8 and Figure 9 As shown, it is worth noting that the wall cleaning component 3 includes a groove 307 formed on the side of the column 15 and arranged along the length of the column 15. A rod 302 is slidably inserted into the groove 307. A connecting rod b303 is fixed to the bottom end of the rod 302. A connecting rod a301, arranged parallel to the rod 302, is fixed to the end of the connecting rod b303 away from the rod 302. Densely distributed bristles 304 are fixed to the sides of the connecting rods a301 and b303. The bristles 304 contact the inner wall of the receiving tank 4. A discharge outlet is fixed to the outer wall of the receiving tank 4. The discharge pipe is equipped with a valve; when it is necessary to clean the inside of the receiving tank 4, the motor 6 is started to work, and the output end of the motor 6 drives the column rod 15 to rotate, thereby driving the connecting rod b303 and connecting rod a301 to rotate synchronously, so that the bristles 304 on the connecting rod a301 and connecting rod b303 can thoroughly brush and clean the inner wall of the receiving tank 4, removing the impurities adhering to the inner wall of the receiving tank 4, effectively improving the cleaning effect of the inside of the receiving tank 4 and reducing the amount of cleaning and maintenance work inside the receiving tank 4.

[0028] Further as Figure 8 and Figure 9 As shown, it is worth noting that a top post 305 is fixed to the top of the insertion rod 302, and a pressure plate 306 is rotatably connected to the top side of the post rod 15 to limit the position of the top post 305. When the bristles 304 need to be replaced or maintained, the insertion rod 302 is dislodged from the groove 307 by pulling up the top post 305, so that the whole assembly consisting of the insertion rod 302, connecting rod b303, connecting rod a301 and bristles 304 can be taken out, making it convenient to clean and replace the bristles 304.

[0029] Further as Figure 2 , Figure 5 , Figure 8 and Figure 10As shown, it is worth noting that the vibration bottom assembly 2 includes multiple annularly distributed circular protrusions b204 fixed to the outer wall of the bottom end of the receiving tank 4. A ring plate 201 is fixed to the bottom end of the column 15, and a spring plate 202 is fixed to the side of the ring plate 201. A circular protrusion a203 that slides with the circular protrusions b204 is fixed to the end of the spring plate 202 away from the ring plate 201. When the column 15 rotates, the spring plate 202 is rotated synchronously by the column 15, so that the circular protrusions a203 and b204 rotate relative to each other. This causes the circular protrusions a203 to continuously strike the bottom side wall of the receiving tank 4, causing the side wall of the receiving tank 4 to vibrate continuously. This accelerates the falling off of stubborn impurities adhering to the inner side wall of the receiving tank 4, prevents impurities from accumulating at the bottom of the receiving tank 4, and further improves the cleaning effect and efficiency of the inside of the receiving tank 4.

[0030] This solution has the following working process: By inserting one end of the oil pipe 12 into the connecting seat 11, the outer sleeve 103 is pushed, which drives the connecting rod 101 and the piston plate 102 to move inside the liquid cylinder 104. The piston plate 102 then forces the liquid inside the liquid cylinder 104 into the cavity 106. The annular rubber block 105 has hydraulic pressure, causing it to expand, thus making its sidewalls tightly adhere to the outer sidewall of the oil pipe 12. This clamps the end of the oil pipe 12 into the connecting seat 11 while simultaneously sealing the gap between the outer wall of the oil pipe 12 and the inner wall of the connecting seat 11, thus sealing the end of the oil pipe 12 into the connecting seat 11. The other end of the oil pipe 12 is inserted into the oil tank, and the residual oil and impurities at the bottom of the oil tank are released through the oil pipe 12 and sealed and transported into the receiving tank 4. When the oil pipe 12 needs to be removed for cleaning and maintenance, the piston plate 102 is moved in the opposite direction by pulling the outer sleeve 103. The internal movement of the liquid cylinder 104 reverses, thereby releasing the hydraulic pressure inside the cavity 106, which in turn releases the expansion of the annular rubber block 105 and releases the sealing clamp on the oil delivery pipe 12. This allows the oil delivery pipe 12 to be easily removed for cleaning or replacement. The output end of the motor 6 drives the column rod 15 to rotate, which in turn drives the connecting rods b303 and a301 to rotate synchronously. This allows the bristles 304 on the connecting rods a301 and b303 to thoroughly brush the inner wall of the receiving tank 4. The cleaning process involves brushing away impurities adhering to the inner wall of the receiving tank 4. When the column rod 15 rotates, it synchronously drives the spring plate 202 to rotate, causing the round protrusions a203 and b204 to rotate relative to each other. This causes the round protrusions a203 to continuously strike the bottom side wall of the receiving tank 4, resulting in continuous vibration of the side wall of the receiving tank 4. This accelerates the removal of stubborn impurities adhering to the inner wall of the receiving tank 4 and prevents impurities from accumulating at the bottom of the receiving tank 4.

[0031] Further as Figure 1 and Figure 2 As shown, it is worth noting that the bottom of the receiving tank 4 is fixed with multiple symmetrically distributed support rods 7, the bottom of the multiple support rods 7 is jointly fixed with a base plate 8, the bottom of the base plate 8 is fixed with multiple symmetrically distributed support legs 13, and the bottom of the multiple support legs 13 is fixed with casters 14; in actual operation, the casters 14 facilitate the movement and transfer of the entire device, making it convenient for transfer and use.

[0032] Further as Figure 1 As shown, it is worth noting that a vertical plate 9 is fixed to one end of the base plate 8, and an opening 10 is provided at the top of the vertical plate 9.

[0033] In summary: The sealing component 1 allows for easy release of the oil pipe 12 from the connector 11, enabling convenient removal for cleaning or replacement. This significantly improves the ease and efficiency of subsequent maintenance of the oil pipe 12. When cleaning the inside of the receiving tank 4 is required, cleaning fluid is introduced into the tank, and the motor 6 is started. The output of the motor 6 drives the column rod 15 to rotate, which in turn drives the wall cleaning component 3 to clean the inner wall of the receiving tank 4. A thorough brushing and cleaning process is performed to remove impurities adhering to the inner wall of the receiving tank 4, effectively improving the cleaning effect inside the receiving tank 4 and reducing the amount of cleaning and maintenance work inside the receiving tank 4. When the column rod 15 rotates, it synchronously drives the bottom vibration component 2 to work, thereby continuously tapping the side wall of the receiving tank 4 through the bottom vibration component 2, causing the side wall of the receiving tank 4 to generate continuous vibration, accelerating the falling off of stubborn impurities adhering to the inner wall of the receiving tank 4, and preventing impurities from accumulating at the bottom of the receiving tank 4.

[0034] The motor 6 can be purchased from the market. The motor 6 is equipped with a power supply. It is a mature technology in this field and has been fully disclosed. Therefore, it will not be described again in the specification.

Claims

1. A sedimentation device for aircraft fuel tanks, comprising a receiving container (4), characterized in that, A top plate (5) is fixed to the top of the receiving tank (4), and a connecting seat (11) is fixed to the top side of the top of the top plate (5). An oil pipe (12) is inserted into the connecting seat (11). A sealing component (1) is provided in the connecting seat (11) to seal the oil pipe (12) inserted into the connecting seat (11). A column rod (15) is rotatably connected to the center of the bottom side wall of the receiving tank (4). A motor (6) is provided below the receiving tank (4). The output end of the motor (6) is fixed to the bottom end of the column rod (15). A bottom-vibrating component (2) is provided at the bottom of the receiving tank (4) to strike the side wall of the receiving tank (4). A wall-cleaning component (3) is connected to the column rod (15). The sealing component (1) includes an annular rubber block (105) embedded in the inner wall of the connecting seat (11), and the annular rubber block (105) has a cavity (106) inside. A liquid cylinder (104) communicating with a cavity (106) is fixed on the outer wall of the connecting seat (11). A connecting rod (101) is inserted inside the liquid cylinder (104). A piston plate (102) that fits tightly against the inner wall of the liquid cylinder (104) is fixed at the end of the connecting rod (101). A protruding post (110) is fixed on the outer wall of the liquid cylinder (104), and an L-shaped groove (109) is provided on the side wall of the outer sleeve (103) to slide and adapt to the protruding post (110). The end of the outer sleeve (103) is fixed with a rotating plate (107), and the side of the rotating plate (107) is provided with a plurality of convex ribs (108) arranged in a ring, and the side of the protruding column (110) is fitted with a rubber sleeve (111). The wall cleaning component (3) includes a groove (307) opened on the side of the column (15) and arranged along the length of the column (15). A rod (302) is slidably inserted in the groove (307). A connecting rod b (303) is fixed at the bottom end of the rod (302). A connecting rod a (301) arranged parallel to the rod (302) is fixed at the end of the connecting rod b (303) away from the rod (302). Brush bristles (304) are densely distributed on the sides of the connecting rod a (301) and the connecting rod b (303). The brush bristles (304) are in contact with the inner wall of the receiving bucket (4). A discharge pipe is fixed on the outer wall of the receiving bucket (4) and a valve is installed on the discharge pipe. The shock-absorbing assembly (2) includes a plurality of circular protrusions b (204) fixed on the outer side wall of the bottom end of the receiving bucket (4) in a ring distribution. A ring plate (201) is fixed on the bottom end of the column rod (15). A spring plate (202) is fixed on the side of the ring plate (201). A circular protrusion a (203) that slides with the circular protrusions b (204) is fixed on the end of the spring plate (202) away from the ring plate (201).

2. The aircraft fuel tank sediment discharge device according to claim 1, characterized in that, A top post (305) is fixed to the top of the insertion rod (302), and a pressure plate (306) is rotatably connected to the top side of the post (15) to limit the position of the top post (305).

3. The aircraft fuel tank sediment discharge device according to claim 2, characterized in that, The bottom of the receiving bucket (4) is fixed with a plurality of symmetrically distributed support rods (7), and the bottom of the plurality of support rods (7) is fixed with a base plate (8). The bottom of the base plate (8) is fixed with a plurality of symmetrically distributed support rods (13), and the bottom of the plurality of support rods (13) is fixed with casters (14).

4. The aircraft fuel tank sediment discharge device according to claim 3, characterized in that, A vertical plate (9) is fixed to one end of the base plate (8), and an opening (10) is provided at the top of the vertical plate (9).

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