Portable aircraft tire dismounting device

Abstract

A portable aircraft tire dismounting device is composed of a scissor jack, a cross table, a telescopic joint, a connecting rod, a tire jacking seat and a tire limiting device, the tire jacking seat and the tire limiting device are installed on the two sides of a tire to be dismounted, the scissor jack is adjusted to enable the cross table to drive the tire jacking seat to extrude the tire, and then the tire is dismounted. And meanwhile, through transmission of the connecting rod, the expansion joint drives the tire limiting device to limit the hub, reverse force application to the hub and the tire is achieved, and quick disassembly of the tire is achieved. The whole device is small in size and more convenient to store, can be carried by a single person, is different from returning to a specific maintenance point in the prior art, can be used for tire replacement or maintenance anytime and anywhere, is greatly improved in flexibility and portability, and meets the requirement for quick tire replacement in fields or non-fixed places.

Description

Technical Field

[0001] This utility model relates to a portable aircraft tire removal device, specifically a portable aircraft tire removal device. Background Technology

[0002] When replacing military or civilian aircraft tires, the process usually involves going to a suitable repair location or a fixed maintenance station. Currently, the equipment used for replacement is bulky and slow, and the replacement locations are relatively fixed. When a tire is damaged and needs to be replaced, it must be returned to the airport maintenance station for repair. If temporary repairs are needed in the field, maintenance personnel cannot arrive immediately, and transporting maintenance equipment to the repair location is also very difficult. Not only is the repair speed slow, but the repair difficulty is also greatly increased. After prolonged use, tires may stick to the rim, which increases the difficulty of manual tire replacement and slows down the tire replacement process. Summary of the Invention

[0003] The purpose of this utility model is to provide a portable aircraft tire removal device. The tire removal device is composed of a scissor jack, a telescopic joint, a cross platform, and a tire limiting device. It solves the problem that the existing technology requires a fixed maintenance station and cannot meet the needs of rapid replacement in the field or non-fixed locations. It achieves the effect of convenient maintenance and portability, and solves the problems in the existing technology.

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows: a portable aircraft tire disassembly device, including a scissor jack 1. The scissor jack 1 can be manually adjusted to retract or move away from both ends via an adjusting rod. One end of the scissor jack 1 is provided with a cross platform 2 and a telescopic joint 3. The cross platform 2 is connected to the end of the scissor jack 1. The telescopic joint 3 is connected to the other end of the scissor jack 1 via a connecting rod 30. Each of the four ends of the cross platform 2 away from the scissor jack 1 is equipped with a riser 4. The end of the riser 4 away from the cross platform 2 is equipped with a tire mount 5. The end of the telescopic joint 3 away from the scissor jack 1 is equipped with a tire limiting device 6. The tire limiting device 6 can be rotated and folded back towards one end of the scissor jack 1. The cross platform 2 includes a fixed circular plate 8 fixed to the end of the scissor jack 1. A through groove 9 is provided on the fixed circular plate 8 to mate with the connecting rod 30. Four circumferentially arranged square tubes 10 are installed on the outer periphery of the fixed circular plate 8. Each square tube 10 is fitted with a slidable square tube sleeve 11. A vertically arranged riser 4 is fixedly installed at the end of the square tube sleeve 11 away from the fixed circular plate 8. A top mount 5 is installed at the end of the riser 4 away from the square tube sleeve 11. A first boss 12 is provided on one side of the square tube sleeve 11. A threaded hole is provided in the first boss 12, and an adjusting stud 13 is fitted into the threaded hole. Rotating the adjusting stud 13 can tighten the square tube sleeve 11 onto the square tube 10. The top tire seat 5 is equipped with a second boss 14, which has a second through hole 15. The riser 4 has a third through hole 16 near the top tire seat 5 that mates with the second through hole 15. The second through hole 15 and the third through hole 16 are fixed by a pin 17. The telescopic joint 3 includes a mounting block 18, which has a first through hole 19. A threaded sleeve 20 is installed in the first through hole 19. One end of the threaded sleeve 20 is provided with a limiting ring 21, the diameter of which is larger than the diameter of the first through hole 19. A telescopic screw 29 is installed in the threaded sleeve 20. A limiting block 7 is installed at the end of the screw 29 that extends out of the threaded sleeve 20. A detachable tire limiting device 6 is installed on the limiting block 7. The tire limiting device 6 includes a hinge seat 22, on which four rotatable support square tubes 23 are hinged. A first circular groove 25 is provided at one end of the hinge seat 22 near the telescopic screw 29. An elongated through groove 26 that cooperates with the limiting block 7 is provided in the first circular groove 25. A second circular groove 27 is provided at the other end of the hinge seat 22. The second circular groove 27 is connected to the first circular groove 25 through the elongated through groove 26. The limiting block 7 can pass through the elongated through groove 26 and enter the second circular groove 27. Two limiting posts 28 are installed on the second circular groove 27. When the limiting block 7 rotates to contact the limiting posts 28, the limiting block 7 is arranged perpendicular to the elongated through groove 26.Furthermore, each supporting square tube 23 has a fourth through hole 24 at one end near the hinge seat 22, and a plug 31 that mates with the fourth through hole 24 is installed on the hinge seat 22, so that the supporting square tube 23 can rotate relative to the hinge seat 22 with the plug 31 as the center.

[0005] The positive effects of this utility model are as follows: The portable aircraft tire removal device described in this utility model consists of a scissor jack, a cross platform, a telescopic joint, a connecting rod, a tire mount, and a tire limiting device. The tire mount and tire limiting device are installed on both sides of the tire to be removed. Adjusting the scissor jack causes the cross platform to drive the tire mount to compress the tire. Simultaneously, the connecting rod drives the telescopic joint to limit the tire limiting device on the wheel rim, achieving reverse force on the wheel rim and tire, thus enabling rapid tire removal. The overall device is smaller and easier to store, and can be carried by a single person. Unlike existing technologies that require returning to a specific repair point, this device can be used anytime, anywhere for tire replacement or repair, greatly improving flexibility and portability. It meets the problem of rapid tire replacement in the field or non-fixed locations. Even if the tire is stuck to the wheel rim, this device can still achieve quick tire removal and replacement, improving the shortcomings of long repair times and high requirements for repair locations, and significantly improving tire replacement efficiency and repair quality. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the structure of this utility model;

[0007] Figure 2 This is the front view of this utility model;

[0008] Figure 3 yes Figure 2 Top view;

[0009] Figure 4 yes Figure 2 The left view;

[0010] Figure 5 yes Figure 2 A bottom view;

[0011] Figure 6 yes Figure 2 A magnified view of part of I;

[0012] Figure 7 yes Figure 3 Enlarged view of the sectional view along the AA direction;

[0013] Figure 8 yes Figure 5 Enlarged view of the sectional view along the BB direction;

[0014] Figure 9 yes Figure 2Enlarged view of the sectional view along the CC direction;

[0015] Figure 10 This is a diagram showing the tire limit device in its retracted state. Detailed Implementation

[0016] The present invention will be further described below with reference to the embodiments, but the present invention is not limited to these examples. Any improvements made without departing from the spirit of the present invention shall fall within the protection scope of the present invention.

[0017] like Figure 1 As shown, a portable aircraft tire removal device includes a scissor jack 1, which can be manually adjusted to retract or extend its ends via an adjusting rod. A cross-shaped platform 2 and a telescopic joint 3 are provided on one side of the scissor jack 1. The cross-shaped platform 2 is connected to one end of the scissor jack 1, and the telescopic joint 3 is connected to the other end of the scissor jack 1 via a connecting rod 30. Each of the four ends of the cross-shaped platform 2, on the side away from the scissor jack 1, is equipped with a riser 4. A tire mount 5 is installed at the end of the riser 4 away from the cross-shaped platform 2, and a tire limiting device 6 is installed at the end of the telescopic joint 3 away from the cross-shaped platform 2. The tire limiting device 6 can be placed horizontally on the ground and extended away from the end of the scissor jack 1, with the tire to be replaced placed at the end of the tire limiting device 6 closest to the scissor jack 1. The scissor jack 1 is equipped with a tire seat 5 that contacts the tire at one end. When the scissor jack 1 tends to separate its two ends using the adjusting rod, the scissor jack 1 can synchronously drive the tire limiting device 6 to move through the connecting rod 30 and the telescopic joint 3. The tire limiting device 6 at one end of the tire tends to approach the tire seat 5 at the other end. The tire limiting device 6 and the tire seat 5 are installed on both sides of the tire, so that the tire seat 5 presses against the side of the tire that is close to the tire limiting device 6, thereby forcing the tire to leave the rim area. The tire limiting device 6 can be rotated and folded back to one end of the scissor jack 1.

[0018] Furthermore, the cross platform 2 may include a fixed circular plate 8 fixed to the end of the scissor jack 1. A through groove 9 is provided on the fixed circular plate 8 to cooperate with the connecting rod 30, and the through groove 9 can limit the offset of the connecting rod 30. Four circumferentially arranged square tubes 10 are installed on the outer periphery of the fixed circular plate 8, and each square tube 10 is fitted with a sliding square tube sleeve 11.

[0019] Furthermore, a first boss 12 may be provided on one side of the square tube sleeve 11. The first boss 12 has a threaded hole, and an adjusting stud 13 is installed in the threaded hole. Rotating the adjusting stud 13 can press the square tube sleeve 11 against the square tube 10. A vertically arranged riser 4 is fixedly installed at the end of the square tube sleeve 11 away from the fixed circular plate 8. A top mount 5 is installed at the end of the riser 4 away from the square tube sleeve 11. When the adjusting stud 13 is rotated towards the end away from the square tube sleeve 11, the square tube sleeve 11 can move along the length direction of the square tube 10, thereby realizing the extension and retraction of the square tube sleeve 11 on the square tube 10. The square tube sleeve 11 drives the top mount 5 to move through the riser 4 fixed at one end. When the top mount 5 is adjusted to a suitable position, the adjusting stud 13 can be rotated towards the end close to the square tube sleeve 11, so that one end of the adjusting stud 13 presses against the square tube 10. Its square tube sleeve 11 fixes the top tire seat 5 through the riser tube 4 at one end, so that the top tire seat 5 can be adapted to tires of different sizes.

[0020] Furthermore, a second boss 14 can be installed on the top tire seat 5. The second boss 14 has a second through hole 15. The riser 4 has a third through hole 16 that mates with the second through hole 15 at one end near the top tire seat 5. The second through hole 15 and the third through hole 16 are fixed by a pin 17. The pin 17 allows for better and faster replacement of the top tire seat 5 to fit different sizes of tires, while also facilitating storage.

[0021] Furthermore, the telescopic joint 3 may include a mounting block 18, which has a first through hole 19. A threaded sleeve 20 is installed in the first through hole 19, and one end of the threaded sleeve 20 is provided with a limiting ring 21, wherein the diameter of the limiting ring 21 is larger than the diameter of the first through hole 19. The mounting block 18 is located below the scissor jack 1, and the threaded sleeve 20 passes through the first through hole 19 and is installed on the mounting block 18. The limiting ring 21 is installed at one end of the threaded sleeve 20, that is, the threaded sleeve 20 provides a downward limiting function for the mounting block 18. The threaded sleeve 20 is equipped with a telescopic screw 29. The end of the screw 29 extending out of the threaded sleeve 20 is equipped with the limiting block 7. The limiting block 7 is equipped with a tire limiting device 6. When the scissor jack 1 above the mounting block 18 is adjusted, the scissor jack 1 drives the mounting block 18 to move upward through the connecting rod 30. When the mounting block 18 moves upward, the limiting ring 21 can simultaneously drive the threaded sleeve 20 and the screw 29 in the threaded sleeve 20 to move synchronously. The screw 29 can continue to be finely adjusted in the extension length in the threaded sleeve 20, so as to adapt to tires of different widths.

[0022] Furthermore, the tire limiting device 6 may include a hinge seat 22, on which four rotatable support square tubes 23 are hingedly mounted.

[0023] Furthermore, each supporting square tube 23 can have a fourth through hole 24 at one end near the hinge seat 22. A pin 31 that mates with the fourth through hole 24 is installed on the hinge seat 22. The supporting square tube 23 can rotate relative to the hinge seat 22 with the pin 31 as the center. A first circular groove 25 is opened at one end of the hinge seat 22 near the telescopic screw 29. A long through groove 26 that mates with the limiting block 7 is opened in the first circular groove 25. A second circular groove 27 is opened at the other end of the hinge seat 22. The second circular groove 27 is connected to the first circular groove 25 through the long through groove 26. The limiting block 7 can pass through the long through groove 26 and enter the second circular groove 27. Two limiting posts 28 are installed on the second circular groove 27. After the limiting block 7 rotates to contact the limiting posts 28, the limiting block 7 is arranged perpendicular to the long through groove 26. When the supporting square tube 23 rotates 90 degrees with the insert 31 as the rotation center towards the end closer to the scissor jack 1, it is in the retracted state. In the retracted state, the tire limiting device 6 is easy to store and occupies little space. When the supporting square tube 23 rotates 90 degrees in the opposite direction after being retracted, it is in the unfolded state. In the retracted state, the tire limiting device 6 provides a larger support area for the tire hub and the support effect is more stable. When the hinge seat 22 and the limiting block 7 are not installed, the hinge seat 22 is separated from the limiting block. When the hinge seat 22 and the limiting block 7 are installed, the limiting block 7 passes through the elongated through slot 26 and rotates to contact the limiting post 28. The elongated through slot 26 and the limiting block 7 are arranged perpendicularly. At this time, the limiting block 7 cannot pass out of the elongated through slot 26. The limiting block 7 can drive the hinge seat 22 to move upward as a whole. At this time, the limiting block 7 has a downward limiting effect on the hinge seat 22. When the screw 29 has an upward tendency, the screw 29 simultaneously drives the hinge seat 22 to move upward through the limiting block 7 installed at one end. A connecting rod 30 is installed above the scissor jack 1, and a mounting block 18 is installed at the lower end of the connecting rod 30. A first through hole 19 is provided on the mounting block 18, into which a threaded sleeve 20 is inserted. A limiting ring 21 is installed on the threaded sleeve 20, which limits its downward movement. When the scissor jack 1 is lifted upwards, the connecting rod 30 drives the mounting block 18 upwards, and the upward movement of the mounting block 18, in turn, drives the threaded sleeve 20 upwards via the limiting ring 21. A matching screw 29 is installed on the threaded sleeve 20, and a limiting block 7 is installed at the lower end of the screw 29. Through the cooperation between the screw 29 and the threaded sleeve 20, the limiting block 7 can also adjust the installation position by moving away from or closer to the threaded sleeve 20. The limiting block 7 also limits the downward movement of the hinge seat 22.A fixed circular plate 8 is installed below the scissor jack 1. A through slot 9 is provided on the fixed circular plate 8, which limits the movement of the connecting rod 30. Four square tubes 10 are installed below the fixed circular plate 8, with each square tube 10 at a 90-degree angle to the others. A square tube sleeve 11 is installed on the outer periphery of each square tube 10 away from the fixed circular plate 8. A first boss 12 is installed on one side of each square tube sleeve 11, with a threaded hole in which a matching adjusting stud 13 is installed. When the adjusting stud 13 rotates towards the end away from the square tube 10, the square tube sleeve 11 can move and adjust along the length of the square tube 10. When the adjusting stud 13 rotates towards the end closer to the square tube 10, the square tube sleeve 11 can move and adjust along the length of the square tube 10. The sleeve 11 can be fixed on the square tube 10. A riser 4 is installed at the end of the square tube sleeve 11 away from the fixed circular plate 8. A top mount 5 is installed below the riser 4. A second boss 14 is installed on the top mount 5. A second through hole 15 is opened on the second boss 14. A third through hole 15 is opened at the end of the riser 4 near the top mount 5, which mates with the second through hole 16. The second through hole 15 and the third through hole 16 are fixed by a pin 17. The second boss 14 can be inserted into the riser 4. After aligning the center of the second through hole 15 with the center of the third through hole 16, the pin 31 is inserted through the third through hole 16 and then inserted into the second through hole 15 to fix the top mount 5. Each supporting square tube 23 is rotated evenly towards the end away from the hinge seat 22. The device can be unfolded by rotating 90 degrees. After unfolding the supporting square tubes 23, the tire to be replaced can be placed on them, which also increases the support area for the tire. On the other side of the tire, the top tire seat 5 is placed in a suitable position using the adjusting stud 13. After the device is installed, the scissor jack 1 is adjusted using the adjusting rod. At this time, the two ends of the scissor jack 1 are separated. The upper end of the scissor jack 1 moves upward through the linkage of the connecting rod, causing the lower limit block 7 to move upward. The limit block 7 will drive the hinge seat 22 to be fixed to one side of the tire rim. The lower end of the scissor jack 1 moves downward through the linkage of the fixed circular plate 8 with the top tire seat 5. When the top tire seat 5 continues to press against one side of the tire, the tire will detach from the rim and can be... Remove the tire that needs to be replaced; when installing the tire, first unfold the tire limiting device 6 and place it horizontally on the ground. Place the tire that needs to be replaced on the tire limiting device 6. Pass the limiting block 7 through the center of the wheel hub and the long through groove 26 into the second circular groove 27. After entering the second circular groove 27, rotate the limiting block 7 until it contacts the limiting post 28. Use the square tube sleeve 11 to adjust the position of the other side of the tire. Place the top tire seat 5 in a suitable position. Use the adjusting rod to separate the two ends of the scissor jack 1. The top tire seat 5 touches one side of the tire. Continue to rotate the adjusting rod to control the scissor jack 1 so that the top tire seat 5 continues to move closer to the tire limiting device 6. Push the tire away from the wheel hub so that the tire is removed from the wheel hub and the tire can be replaced.After folding and retracting the tire limiting device 6, its screw 29 rotates and retracts into the screw sleeve 20. The tire limiting device 6 is then installed onto the limiting block 7, with the supporting square tube 23 avoiding the hanging block 18. The device below the screw sleeve 20 is then retracted towards the fixed circular plate 8, completing the storage process.

[0024] The technical solution of this utility model is not limited to the scope of the embodiments described herein. All technical contents not described in detail herein are publicly known technologies.

Claims

1. A portable aircraft tire removal device, characterized in that: The device includes a scissor jack (1), which can be manually adjusted to retract or move away from the scissor jack by means of an adjusting rod. One end of the scissor jack (1) is provided with a cross platform (2) and a telescopic joint (3). The cross platform (2) is connected to the end of the scissor jack (1). The telescopic joint (3) is connected to the other end of the scissor jack (1) by means of a connecting rod (30). Each of the four ends of the cross platform (2) away from the scissor jack (1) is equipped with a riser (4). The end of the riser (4) away from the cross platform (2) is equipped with a top tire seat (5). The end of the telescopic joint (3) away from the scissor jack (1) is equipped with a tire limiting device (6). The tire limiting device (6) can be rotated and folded away from the scissor jack (1).

2. The portable aircraft tire removal device according to claim 1, characterized in that: The cross platform (2) includes a fixed circular plate (8) fixed to the end of the scissor jack (1). A through groove (9) that cooperates with the connecting rod (30) is provided on the fixed circular plate (8). Four square tubes (10) arranged in a circle are installed on the outer periphery of the fixed circular plate (8). A sliding square tube sleeve (11) is installed on the outer periphery of each square tube (10). A vertically arranged riser (4) is fixedly installed at the end of the square tube sleeve (11) away from the fixed circular plate (8). A top mount seat (5) is installed at the end of the riser (4) away from the square tube sleeve (11).

3. The portable aircraft tire removal device according to claim 2, characterized in that: The square tube sleeve (11) has a first boss (12) on one side, and a threaded hole is provided in the first boss (12). An adjusting stud (13) is installed in the threaded hole. Rotating the adjusting stud (13) can press the square tube sleeve (11) against the square tube (10).

4. The portable aircraft tire disassembly device according to claim 2, characterized in that: The top mount (5) is equipped with a second boss (14), and the second boss (14) has a second through hole (15). The riser (4) has a third through hole (16) that matches the second through hole (15) at one end near the top mount (5). The second through hole (15) and the third through hole (16) are fixed by a pin (17).

5. A portable aircraft tire removal device according to claim 1, characterized in that: The telescopic joint (3) includes a mounting block (18), on which a first through hole (19) is provided. A threaded sleeve (20) is installed in the first through hole (19) and a limiting ring (21) is provided at one end of the threaded sleeve (20). The diameter of the limiting ring (21) is larger than the diameter of the first through hole (19). A telescopic screw (29) is installed in the threaded sleeve (20). A limiting block (7) is installed at one end of the screw (29) that extends out of the threaded sleeve (20). A detachable tire limiting device (6) is installed on the limiting block (7).

6. A portable aircraft tire removal device according to claim 5, characterized in that: The tire limiting device (6) includes a hinge seat (22), on which four rotatable support square tubes (23) are hinged. The hinge seat (22) has a first circular groove (25) near the telescopic screw (29). The first circular groove (25) has a long through groove (26) that cooperates with the limiting block (7). The other end of the hinge seat (22) has a second circular groove (27). The second circular groove (27) is connected to the first circular groove (25) through the long through groove (26). The limiting block (7) can pass through the long through groove (26) and enter the second circular groove (27). Two limiting posts (28) are installed on the second circular groove (27). When the limiting block (7) rotates to contact the limiting posts (28), the limiting block (7) and the long through groove (26) are arranged perpendicularly.

7. A portable aircraft tire removal device according to claim 6, characterized in that: Each supporting square tube (23) has a fourth through hole (24) at one end near the hinge seat (22). A plug (31) that matches the fourth through hole (24) is installed on the hinge seat (22). The supporting square tube (23) can rotate relative to the hinge seat (22) with the plug (31) as the center.

Images