Dual-purpose anti-falling disassembling and assembling tool for aircraft tire valve cap

Abstract

The utility model provides a dual-purpose anti-falling disassembling and assembling tool for an aircraft tire valve cap. The dual-purpose anti-falling disassembling and assembling tool comprises an anti-falling cylinder, a sliding sleeve, a central shaft rod, a first disassembling and assembling part, a second disassembling and assembling part and an opening rubber cap. The anti-falling cylinder is connected with the sliding sleeve through two symmetrical connecting rods, one ends of the two connecting rods are fixedly connected to the symmetrical side wall positions of the anti-falling cylinder respectively, and the other ends of the two connecting rods are rotationally connected to the symmetrical side wall positions of the sliding sleeve through pin shafts. The central shaft rod is mounted in the sliding sleeve in a sliding manner; the first disassembling and assembling component and the second disassembling and assembling component are installed at the two ends of the center shaft rod correspondingly, and an inner hexagonal hole used for disassembling and assembling a hexagonal nut is formed in the end of the first disassembling and assembling component. A nylon chuck used for disassembling and assembling the round nut is installed at the end of the second disassembling and assembling component. According to the utility model, the same set of tool is compatible with two nut specifications, so that the efficiency of loading and unloading operation is greatly improved; the number of tools is reduced, the airport tool management process is simplified, and the risk of manpower and time loss caused by mistakenly taking tools is reduced.

Description

Technical Field

[0001] This utility model relates to the field of aircraft wheel maintenance technology, specifically to a tool for removing and installing a tire valve cap for dual-purpose aircraft to prevent it from falling off. Background Technology

[0002] During aircraft maintenance operations, the existing tire valve nut loading and unloading operations involve workers directly using wrenches to load and unload the valve nuts. Due to the depth of the valve, it is difficult for workers to ensure that the threads are aligned during operation, which may result in the tire valve nut accidentally falling off during the disassembly and assembly process.

[0003] There have been cases where valve stem nuts have slipped through the spoke openings into the brake assembly area and become difficult to remove. In such cases, the entire wheel hub must be removed to retrieve the nut, significantly increasing the time and workload of the maintenance process, causing flight delays, and resulting in a huge waste of human and material resources. To prevent such situations from occurring, additional training is required for personnel, thereby increasing the cost of personnel training. There are also potential safety hazards and risks. Furthermore, current aircraft wheel valve stem nuts are generally hexagonal and round, and existing nut removal and installation tools require different sizes of tools for different nut sizes, lacking universality and reducing the convenience of using the tools.

[0004] To address this issue, a technology for preventing the accidental fall of tire valve nuts on dual-purpose aircraft has been developed. This solution aims to improve the safety and convenience of aircraft maintenance processes, prevent losses caused by accidental nut falls, reduce the difficulty of operation for personnel, and minimize operational steps. Utility Model Content

[0005] In order to overcome the problems existing in the background technology, this utility model provides a tool for removing and installing a tire valve cap for dual-purpose aircraft to prevent it from falling off, so as to solve the technical problem that the tire valve cap may fall off accidentally during the removal and installation process in the prior art.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0007] A tool for removing and installing anti-falling tire valve caps for dual-purpose aircraft includes an anti-falling cylinder 1, a sliding sleeve 2, a central shaft 3, a first removal / installation component 4, a second removal / installation component 5, and an open rubber cap 6. The anti-falling cylinder 1 and the sliding sleeve 2 are connected by two symmetrical connecting rods 7. One end of each connecting rod 7 is fixedly connected to a symmetrical side wall of the anti-falling cylinder 1, and the other end is rotatably connected to a symmetrical side wall of the sliding sleeve 2 via a pin. The central shaft 3 is slidably installed in the sliding sleeve 2. The first removal / installation component 4 and the second removal / installation component 5 are respectively installed at both ends of the central shaft 3. The end of the first removal / installation component 4 has an internal hexagonal hole 401 for removing and installing hexagonal nuts. The end of the second removal / installation component 5 is equipped with a nylon chuck 501 for removing and installing round nuts. The open rubber cap 6 is installed at the end of the anti-falling cylinder 1.

[0008] Preferably, the open rubber cap 6 has a cross-shaped opening 601.

[0009] Preferably, the sidewall of the disassembly component 4 is uniformly fitted with spherical spring screws 402 by means of threads, and the spherical end of the spherical spring screws 402 extends into the internal hexagonal hole 401 from the side.

[0010] Preferably, a push rod 403 is slidably installed inside the disassembly component 4. The end of the push rod 403 can slide into the bottom of the internal hexagonal hole 401 to push out the hexagonal nut. A lever 405 is fixedly provided on the side wall of the push rod 403, which passes through a bent irregular hole 404 opened in the side wall of the disassembly component 4. The lever 405 moves along the bent irregular hole 404 to push the push rod 403 to move.

[0011] Preferably, the nylon chuck 501 is installed at the end of the disassembly and assembly component 2 5 by screws. The nylon chuck 501 is provided with an outwardly inclined elastic clamping flap 502. The end of the disassembly and assembly component 2 5 is threadedly connected to a clamping cylinder 503. The clamping cylinder 503 is sleeved on the nylon chuck 501. Rotating the clamping cylinder 503 by screws causes the clamping cylinder 503 to move and adjust the opening and closing degree of the clamping flap 502.

[0012] Preferably, a sliding locking handle 504 is slidably mounted on the second disassembly component 5, and the tight cylinder 503 is threadedly mounted on the sliding locking handle 504; a spherical spring screw 505 is threadedly mounted on the side wall of the sliding locking handle 504, and the spherical end of the spherical spring screw 505 is engaged in a groove opened on the second disassembly component 5.

[0013] Preferably, the sliding locking handle 504 is also equipped with a locking nut 506 to limit the position of the clamping cylinder 503.

[0014] Preferably, the central shaft 3 is provided with an outer handle 8 whose surface is provided with anti-slip texture.

[0015] The beneficial effects of this utility model are:

[0016] 1. This utility model improves the efficiency of loading and unloading operations by setting special structures for disassembling hexagonal nuts and round nuts at both ends of the tool, allowing the same set of tools to be compatible with both types of nuts; it also reduces the number of tools, simplifies the airport tool management process, and reduces the risk of manpower and time loss due to incorrect tool collection.

[0017] 2. This utility model designs a reversible anti-fall cylinder 1 as an anti-fall safety device, reducing the risk of flight delays and resource waste caused by accidents; it can be quickly used without complicated training, saving human resources and reducing management pressure; it makes it easier and more convenient for staff to install and remove aircraft tire valve nuts, thereby reducing workload and improving work efficiency. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is an enlarged schematic diagram of a partial structure of this utility model. Figure 1 .

[0020] Figure 3 This is a partial cross-sectional view of the present invention. Figure 1 .

[0021] Figure 4 This is an enlarged schematic diagram of a partial structure of this utility model. Figure 2 .

[0022] Figure 5 This is a partial cross-sectional view of the present invention. Figure 2 . Detailed Implementation

[0023] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate the understanding of those skilled in the art.

[0024] like Figure 1-5As shown, this utility model provides a tool for removing and installing anti-falling valve caps for dual-purpose aircraft tires, including an anti-falling cylinder 1, a sliding sleeve 2, a central shaft 3, a first removal and installation component 4, a second removal and installation component 5, and an open rubber cap 6. The anti-falling cylinder 1 and the sliding sleeve 2 are connected by two symmetrical connecting rods 7. One end of each connecting rod 7 is fixedly connected to a symmetrical side wall of the anti-falling cylinder 1, and the other end is rotatably connected to a symmetrical side wall of the sliding sleeve 2 via a pin. The central shaft 3 is slidably installed in the sliding sleeve 2. The first removal and installation component 4 and the second removal and installation component 5 are respectively installed at both ends of the central shaft 3. The end of the first removal and installation component 4 has an internal hexagonal hole 401 for removing and installing hexagonal nuts. The end of the second removal and installation component 5 is equipped with a nylon chuck 501 for removing and installing round nuts. The open rubber cap 6 is installed at the end of the anti-falling cylinder 1. In use, the first disassembly / assembly component 4 and the second disassembly / assembly component 5 can be used to disassemble and assemble two nuts of different specifications: a hexagonal nut and a round nut. In practice, Boeing and Airbus aircraft typically use different specifications of hexagonal and round nuts, respectively. Therefore, this tool can be used for disassembling and assembling valve nuts on different aircraft models. During disassembly / assembly, the anti-fall cylinder 1 is rotated along the sliding sleeve 2 to the end of the first disassembly / assembly component 4. The anti-fall cylinder 1 is then placed on the tire valve, and the valve is inserted into the anti-fall cylinder 1 through the open rubber cap 6. The hexagonal nut is then removed, and the first disassembly / assembly component 4 is pushed along the sliding sleeve 2. To remove the nut, place the internal hexagonal socket 401 onto the hexagonal nut and rotate the central shaft 3. Since the nut is covered by the anti-drop sleeve 1, it prevents the nut from falling into the brake assembly area through the spoke opening. When installing the nut, insert the nut into the internal hexagonal socket 401 beforehand and then place the anti-drop sleeve 1 onto the valve stem for installation. When disassembling and assembling the round nut on the Airbus model, rotate the anti-drop sleeve 1 so that the disassembly part 2 is aligned with the anti-drop sleeve. Use the nylon chuck 501 to disassemble and assemble the round nut. The nylon chuck 501 is elastic and can clamp and fix the round nut. This invention significantly improves loading and unloading efficiency by incorporating specialized structures at both ends of the tool for disassembling hexagonal and round nuts of different specifications. This allows for compatibility of both nut sizes with a single tool set. It also reduces the number of tools required, simplifies airport tool management, and mitigates the risk of manpower and time losses due to incorrect tool delivery. Furthermore, the invention features a reversible anti-fall cylinder 1 as a safety feature, reducing the risk of flight delays and resource waste caused by accidents. It requires no complex training and can be quickly mastered, saving manpower and reducing management pressure. Finally, it allows staff to more easily and conveniently load and unload aircraft tire valve nuts, thereby reducing workload and improving operational efficiency.

[0025] The open rubber cap 6 has a cross opening 601. The open rubber cap 6 allows the valve stem to be inserted into the anti-drop cylinder 1 through the cross opening 601, and also prevents the nut from falling out.

[0026] The disassembly / assembly component 4 has spherical spring-loaded screws 402 evenly installed circumferentially on its sidewalls via threads. The spherical end of the spherical spring-loaded screw 402 extends into the internal hexagonal socket 401 from the side. When the hexagonal nut is inserted into the internal hexagonal socket 401, the nut is clamped by the extension and retraction of the steel ball at the head of the spherical spring-loaded screw 402, thus ensuring that the nut will not slip out of the internal hexagonal socket 401. With the cooperation of the anti-drop sleeve 1, the double anti-drop design ensures that the nut can be securely clamped to facilitate loading and unloading operations and prevent accidental drops, avoiding the risk of loss of manpower and resources and flight delays caused by accidental nut drops.

[0027] A push rod 403 is slidably installed inside the disassembly / assembly component 4. The end of the push rod 403 can slide into the bottom of the internal hexagonal hole 401 to push out the hexagonal nut. A lever 405 is fixedly provided on the side wall of the push rod 403, passing through a bent irregular hole 404 opened in the side wall of the disassembly / assembly component 4. The lever 405 moves along the bent irregular hole 404 to push the push rod 403 to move. After the hexagonal nut is removed, it can be pushed out of the internal hexagonal hole 401 by the push rod 403, making it easy to remove the nut. By moving the lever 405 in the bent irregular hole 404, the push rod 403 is pushed to move and push out the nut. The design of the bent irregular hole 404 can prevent the push rod 403 from being accidentally moved.

[0028] The nylon chuck 501 is mounted on the end of the second disassembly component 5 by screws. The nylon chuck 501 has an outwardly inclined, elastic clamping flap 502. A clamping sleeve 503 is threadedly connected to the end of the second disassembly component 5. The clamping sleeve 503 is fitted onto the nylon chuck 501. Rotating the clamping sleeve 503 causes it to move, adjusting the opening and closing degree of the clamping flap 502. By rotating the clamping sleeve 503, pressure is applied to the clamping flap 502, thereby adjusting the clamping force of the nylon chuck 501 on round Airbus-sized nuts. This allows for the clamping of nuts of different sizes by engaging the nut in the clamping flap 502, thus enabling the assembly and disassembly of the nut.

[0029] A sliding locking handle 504 is slidably mounted on the second disassembly component 5, and the clamping cylinder 503 is threadedly mounted on the sliding locking handle 504. A spherical spring screw 505 is threadedly mounted on the side wall of the sliding locking handle 504, and the spherical end of the spherical spring screw 505 is engaged in a groove on the second disassembly component 5. Moving the sliding locking handle 504 forward causes the clamping cylinder 503 to move and directly press against the nylon chuck 501 to clamp and fix the nut, or sliding the locking handle 504 backward causes the clamping cylinder 503 to retract and loosen the nylon chuck 501, allowing the nut to be directly removed from the nylon chuck 501, thus improving the efficiency of nut assembly and disassembly of the nylon chuck 501. The clamping force of the nylon chuck 501 on the nut can be adjusted by rotating the position of the clamping cylinder 503 on the sliding locking handle 504.

[0030] The sliding locking handle 504 is also equipped with a locking nut 506 to limit the clamping cylinder 503. After adjusting the appropriate clamping force of the clamping cylinder 503 on the nylon chuck 501, the locking nut 506 is rotated to press against the end of the clamping cylinder 503, thereby locking the clamping force of the nylon chuck 501.

[0031] The central shaft 3 is equipped with an outer handle 8 with a surface textured for anti-slip. The outer handle 8 facilitates the installation and removal of the nut by rotation.

[0032] Work process:

[0033] The operator holds the tool and rotates the anti-fall cylinder 1 to the end corresponding to the nut specification to be loaded or unloaded. The wheel valve is inserted into the anti-fall cylinder 1 through the open rubber cap 6 until the nut is completely submerged in the open rubber cap 6. Then, the corresponding specification end of the tool is put on the nut until it is fully inserted and cannot be inserted any further. If it is a Boeing specification hexagonal nut, the tool body can be rotated directly to load or unload the nut. To remove the nut from the tool, the lever 405 is pushed forward to push the nut out. If it is an Airbus specification round nut, the central shaft 3 is pushed along the sliding sleeve 2 to make the nylon chuck 501 fit on the nut. Then, the sliding locking handle 504 is pushed forward to make the clamping cylinder 503 press against the nylon chuck 501, so that the nylon chuck 501 clamps the nut. The tool body can then be rotated to achieve the loading and unloading action. To remove the nut from the tool, the sliding locking handle 504 is pulled back to allow the nut to fall out under gravity.

[0034] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A tool for removing and installing a dual-purpose aircraft tire valve cap to prevent it from falling off, characterized in that: The device includes a fall arrestor (1), a sliding sleeve (2), a central shaft (3), a disassembly / assembly component one (4), a disassembly / assembly component two (5), and an open rubber cap (6). The fall arrestor (1) and the sliding sleeve (2) are connected by two symmetrical connecting rods (7). One end of each connecting rod (7) is fixedly connected to the symmetrical side wall of the fall arrestor (1), and the other end is rotatably connected to the symmetrical side wall of the sliding sleeve (2) via a pin. The central shaft (3) is slidably installed in the sliding sleeve (2). The disassembly / assembly component one (4) and the disassembly / assembly component two (5) are respectively installed at both ends of the central shaft (3). The end of the disassembly / assembly component one (4) is provided with an internal hexagonal hole (401) for disassembling and assembling a hexagonal nut. The end of the disassembly / assembly component two (5) is equipped with a nylon chuck (501) for disassembling and assembling a round nut. The open rubber cap (6) is installed at the end of the fall arrestor (1).

2. The dual-purpose aircraft tire valve cap anti-fall-off removal and installation tool according to claim 1, characterized in that: The open rubber cap (6) has a cross opening (601).

3. The anti-fall-off removal and installation tool for dual-purpose aircraft tire valve caps according to claim 2, characterized in that: The side wall of the disassembly component 1 (4) is uniformly fitted with a ball spring screw 1 (402) by means of a thread, and the ball end of the ball spring screw 1 (402) extends from the side into the internal hexagonal hole (401).

4. A tool for preventing the tire valve cap of a dual-purpose aircraft from falling off, as described in any one of claims 1-3, characterized in that: The disassembly and assembly component 1 (4) has a push rod (403) slidably installed inside. The end of the push rod (403) can slide into the bottom of the internal hexagonal hole (401) to push out the hexagonal nut. The side wall of the push rod (403) is fixedly provided with a lever (405) that passes through the bent irregular hole (404) opened on the side wall of the disassembly and assembly component 1 (4). The lever (405) moves along the bent irregular hole (404) to push the push rod (403) to move.

5. The anti-fall-off removal and installation tool for dual-purpose aircraft tire valve caps according to claim 4, characterized in that: The nylon chuck (501) is installed at the end of the disassembly and assembly component two (5) by screws. The nylon chuck (501) is provided with an outwardly inclined elastic clamping flap (502). The end of the disassembly and assembly component two (5) is threadedly connected to a clamping sleeve (503). The clamping sleeve (503) is sleeved on the nylon chuck (501). Rotating the clamping sleeve (503) by screws causes the clamping sleeve (503) to move and adjust the opening degree of the clamping flap (502).

6. The anti-fall-off removal and installation tool for dual-purpose aircraft tire valve caps according to claim 5, characterized in that: A sliding locking handle (504) is slidably installed on the second disassembly component (5), and the tight cylinder (503) is threadedly installed on the sliding locking handle (504); a ball spring screw (505) is threadedly installed on the side wall of the sliding locking handle (504), and the ball end of the ball spring screw (505) is inserted into the groove opened on the second disassembly component (5).

7. The anti-fall-off removal and installation tool for dual-purpose aircraft tire valve caps according to claim 6, characterized in that: The sliding locking handle (504) is also equipped with a locking nut (506) to limit the tight cylinder (503).

8. A tool for preventing the tire valve cap of a dual-purpose aircraft from falling off, as described in any one of claims 1-3 and 5-7, characterized in that: The central shaft (3) is provided with an outer handle (8) with anti-slip texture on its surface.

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