Disassembling and assembling tool for airplane cabin door handle

Abstract

The utility model relates to the technical field of aircraft maintenance tools, in particular to a dismounting tool for an aircraft cabin door handle, which comprises a handle and a clamping part fixed at the end part of the handle, the clamping part is provided with a clamping groove matched with the outer contour of a locking sleeve, and the groove wall of the clamping groove is provided with an opening for the locking sleeve to enter the clamping groove. A stop column is movably mounted in the groove wall of the clamping groove, and the stop column can be inserted into or separated from the wrenching hole towards one end in the clamping groove by moving the stop column; according to the disassembling and assembling tool for the airplane cabin door handle, the clamping part and the locking sleeve can be tightly matched, shaking between the clamping part and the locking sleeve is avoided, the locking sleeve is further prevented from being scratched by the clamping part, and therefore it is guaranteed that the appearance of a cabin door is still good after the airplane cabin door handle is disassembled and assembled for multiple times.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft maintenance tools, in particular to a disassembly and assembly tool for aircraft cabin door handles. Background Art

[0002] Aircraft doors are frequently used and require high maintenance frequency. Inspection, replacement, and lubrication of doors involve the disassembly and assembly of door handles. Figure 1 As shown, the aircraft cabin door handle includes a handle body 101 and a locking sleeve 102 for connecting the handle body 101 to the cabin door. Two wrench holes 1021 are symmetrically provided on the outer periphery of the locking sleeve 102.

[0003] The disassembly wrench 200 provided by the manufacturer Figure 2 As shown, the disassembly wrench 200 includes a hand rod 201 and a semicircular hook portion 202 arranged at the end of the hand rod 201. The end of the hook portion 202 away from the hand rod 201 is integrally formed with a columnar protrusion 203 protruding toward the center of the hook portion 202. When in use, the hook portion 202 is first hooked on the outside of the locking sleeve 102, and the columnar protrusion 203 is alternately inserted into the two wrench holes 1021. After inserting into each wrench hole 1021, the hand rod 201 is rotated to rotate the locking sleeve 102, thereby realizing the disassembly and assembly of the handle body 101.

[0004] When the disassembly wrench 200 is in use, in order to ensure that the hook portion 202 is smoothly hooked on the outside of the locking sleeve 102 and that the stop post 3 can be inserted into the wrench hole 1021, the inner diameter of the hook portion 202 needs to be set larger, so as to prevent the stop post 3 from interfering with the hook portion 202 when the hook portion 202 is hooked on the outside of the locking sleeve 102 or when it is removed from the outside of the locking sleeve 102. However, the larger inner diameter of the hook portion 202 results in a loose fit between the hook portion 202 and the locking sleeve 102. When the handle 201 is rotated, the hook portion 202 and the locking sleeve 102 may wobble, which can easily damage the appearance of the locking sleeve 102 and the appearance of the hatch. Utility Model Content

[0005] The technical problem to be solved by the utility model is that: in the existing aircraft cabin door handle disassembly and assembly wrench, the columnar protrusion for inserting into the locking hole of the locking sleeve is fixed on the inner side of the hook-shaped portion, and the inner diameter of the hook-shaped portion needs to be set larger. When the handle is rotated, shaking will occur between the hook-shaped portion and the locking sleeve.

[0006] In order to solve the above technical problems, the purpose of the present utility model is to provide an aircraft cabin door handle disassembly and assembly tool, which is used to disassemble and assemble the locking sleeve of the aircraft cabin door handle. The outer peripheral side of the locking sleeve is provided with a wrench hole. The aircraft cabin door handle disassembly and assembly tool includes a handle and a clamping portion fixed to the end of the handle;

[0007] The holding portion has a slot that matches the outer contour of the locking sleeve, and the slot wall of the slot has an opening for the locking sleeve to enter the slot. A stopping column is movably installed in the slot wall of the slot. Moving the stopping column can allow the stopping column to be inserted into or removed from the wrench hole toward one end in the slot.

[0008] As a preferred solution, the stopping column has an external thread, the mounting hole is a threaded hole, and the stopping column is threadedly matched with the mounting hole.

[0009] As a preferred solution, a guide portion is provided at the end of the stopping column that is inserted into the wrench hole.

[0010] As a preferred solution, the guide portion is a tapered portion with the tip facing the wrench hole.

[0011] As a preferred solution, a gripping portion is provided at one end of the stopping column away from the wrench hole.

[0012] As a preferred solution, the gripping portion is a wrench head.

[0013] As a preferred solution, the wrench head is an internal hexagonal or external hexagonal structure.

[0014] As a preferred embodiment, the aircraft cabin door handle includes a handle body and two locking sleeves, the two locking sleeves are arranged at both ends of the handle body at intervals, the interval between the two locking sleeves is for a human hand to pass through to grasp the handle body, and the length of the handle is smaller than the interval.

[0015] As a preferred solution, the length of the handle is greater than or equal to half of the interval.

[0016] As a preferred solution, the outer side of the locking sleeve is provided with two wrench holes, and the two wrench holes are symmetrically arranged on the outer side of the locking sleeve;

[0017] The stopping columns are movably installed at positions of the slot wall of the clamping slot and opposite to the two wrench holes.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The utility model discloses a disassembly and assembly tool for aircraft cabin door handle, comprising a handle and a holding part fixed to the end portion of the handle, the holding part having a slot matching the outer contour of the locking sleeve, the slot wall having an opening for the locking sleeve to enter the slot, and a stopping post being movably installed in the slot wall of the slot, and the stopping post can be moved so that the stopping post can be inserted into or out of the wrench hole toward one end in the slot. When the stopping post is out of the wrench hole, the holding part can be moved to a position close to the outer side of the locking sleeve, and then the stopping post is inserted into the wrench hole, and the stopping post will stop the rotation of the holding part and the locking sleeve. The locking sleeve can be disassembled and assembled by rotating the handle. After the locking sleeve is disassembled and assembled, the stopping post is moved toward the outer side of the holding part, so that the stopping post is out of the holding part and then the holding part is removed, which can avoid the stopping part blocking the holding part when the holding part is moved to the outer side of the locking sleeve or when the holding part is detached from the locking sleeve. Therefore, the aircraft cabin door handle disassembly and assembly tool of the present invention can tightly fit the clamping part and the locking sleeve, avoiding shaking between the clamping part and the locking sleeve, and further avoiding the locking sleeve being scratched by the clamping part, thereby ensuring that the cabin door still maintains a good appearance after multiple disassembly and assembly of the aircraft cabin door handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of an aircraft cabin door handle;

[0021] Figure 2 This is a schematic diagram of the structure of an existing disassembly and assembly tool for disassembling and assembling an aircraft cabin door handle;

[0022] Figure 3 This is an axonometric view of the aircraft door handle disassembly and assembly tool of the utility model;

[0023] Figure 4 This is an axonometric view of the aircraft cabin door handle disassembly and assembly tool of the utility model when in use;

[0024] Figure 5 This is a side view of the aircraft cabin door handle disassembly and assembly tool of the present invention when in use;

[0025] Figure 6 for Figure 5 A-A sectional view;

[0026] In the figure, 101, handle body, 102, locking sleeve, 1021, wrench hole, 200, disassembly wrench, 201, hand lever, 202, hook-shaped portion, 203, columnar protrusion, 21, handle, 22, holding portion, 221, slot, 222, opening, 3, stop column, 31, guide portion, 32, holding portion. DETAILED DESCRIPTION

[0027] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0029] The utility model is a disassembly and assembly tool for aircraft cabin door handles, which is used to disassemble and assemble the locking sleeve 102 of the aircraft cabin door handle. The outer peripheral side of the locking sleeve 102 is provided with a wrench hole 1021. Figures 3 to 6 As shown, the disassembly and assembly tool for the aircraft cabin door handle of the present invention includes a handle 21 and a holding portion 22 fixed to the end of the handle 21, the holding portion 22 has a slot 221 that matches the outer contour of the locking sleeve 102, and the slot wall of the slot 221 has an opening 222 for the locking sleeve 102 to enter the slot 221, and a stopping column 3 is movably installed in the slot wall of the slot 221. Moving the stopping column 3 can allow the stopping column 3 to be inserted into or removed from the wrench hole 1021 toward one end in the slot 221.

[0030] When the stopping column 3 is out of the wrench hole 1021, the aircraft cabin door handle is moved with a disassembly and assembly tool to make the locking sleeve 102 enter the slot 221, and the holding portion 22 can be moved to a position close to the outside of the locking sleeve 102. Then, the stopping column 3 is inserted into the wrench hole 1021. The stopping column 3 will stop the rotation of the holding portion 22 and the locking sleeve 102. The locking sleeve 102 can be disassembled and assembled by rotating the handle 221. After the locking sleeve 102 is disassembled and assembled, the stopping column 3 is moved toward the outside of the holding portion 22, so that the stopping column 3 is out of the holding portion 22 and then the holding portion 22 is removed. This can avoid the stopping portion blocking the holding portion 22 when the holding portion 22 is moved to the outside of the locking sleeve 102 or when the holding portion 22 is detached from the locking sleeve 102. Therefore, the aircraft cabin door handle disassembly and assembly tool of the present invention can tightly fit the clamping portion 22 and the locking sleeve 102, avoiding shaking between the clamping portion 22 and the locking sleeve 102, and further avoiding the locking sleeve 102 being scratched by the clamping portion 22, thereby ensuring that the cabin door still maintains a good appearance after multiple disassembly and assembly of the aircraft cabin door handle.

[0031] There are various ways to install the stop post 3, such as sliding the stop post 3 into the mounting hole and installing a locking screw radially disposed along the wall of the mounting hole. When the locking screw is tightened, the threaded end of the locking screw abuts against the outer side of the stop post 3, locking the stop post 3. When the locking screw is loosened, the threaded end of the locking screw disengages from the stop post 3, unlocking the movement of the stop post 3. In this embodiment, the stop post 3 has external threads, and the mounting hole is a threaded hole. The stop post 3 and the mounting hole are threadedly engaged, and the operating state of the stop post 3 can be adjusted by rotating the stop post 3. This facilitates operation and allows for precise adjustment of the depth of the stop post 3 inserted into the wrench hole 1021.

[0032] In this embodiment, the end of the stopper post 3 inserted into the wrench hole 1021 is defined as the insertion end, and the other end of the stopper post 3 is defined as the non-insertion end. The end of the insertion end is provided with a guide portion 31, which can be a large rounded corner or beveled corner provided at the end of the insertion end. This facilitates the operator to insert the stopper post 3 into the wrench hole 1021.

[0033] In this embodiment, for ease of processing, the guide portion 31 is a tapered portion with the tip facing the wrench hole 1021 . The tapered portion can be formed by chamfering. In other embodiments of the present invention, the guide portion 31 can be hemispherical.

[0034] To facilitate rotation of the stop post 3, a grip 32 is provided on the end of the stop post 3 facing away from the retaining slot 221. In this embodiment, the grip 32 is a wrench. Specifically, the wrench has an internal or external hexagonal structure, making it easier for the operator to use a commonly used wrench to tighten the stop post 3.

[0035] In this embodiment, the aircraft cabin door handle includes a handle body 101 and two locking sleeves 102. The two locking sleeves 102 are arranged at both ends of the handle body 101 at intervals. The gap between the two locking sleeves 102 is for a human hand to pass through to grasp the handle body 101, and the length of the handle 21 is smaller than the gap. Specifically, the handle body 101 is arranged at intervals from the aircraft cabin door, the handle 21 is in the shape of a long strip, the thickness of the handle 21 is less than the distance between the handle body 101 and the aircraft cabin door, the locking sleeve 102 is a circular sleeve, and the wrench hole 1021 is arranged along the radial direction of the locking sleeve 102. After the handle body 101 is connected to the cabin door, the axial direction of the wrench hole 1021 is parallel to the door panel of the cabin door. After the aircraft cabin door handle disassembly and assembly tool of this embodiment is installed on the outside of the locking sleeve 102, the handle 21 is rotated around the axial direction of the locking sleeve 102. Since the length of the handle 21 is less than the interval between the two locking sleeves 102, when the handle 21 is rotated, the handle 21 can pass through the interval between the two locking sleeves 102 and rotate 360°. In the process of wrench the locking sleeve 102, there is no need to disassemble the aircraft cabin door handle disassembly and assembly tool, thereby realizing quick disassembly and assembly of the locking sleeve 102. In other embodiments of the present invention, the handle 21 can be set longer. When the handle 21 is rotated to interfere with the handle body 101 or another locking sleeve 102, the aircraft cabin door handle disassembly tool is removed, and the aircraft cabin door handle disassembly tool is rotated to a certain angle and then flushed and installed to avoid interference.

[0036] To prevent the handle 21 from being too short and inconvenient to hold, in this embodiment, the length of the handle 21 is greater than or equal to half of the interval.

[0037] In this embodiment, the outer side of the locking sleeve 102 is provided with two wrench holes 1021, which are symmetrically arranged on the outer side of the locking sleeve 102; and stop posts 3 are movably installed at positions on the groove wall of the locking slot 221 opposite the two wrench holes 1021. Providing two stop posts 3 allows the two stop posts 3 to jointly drive the locking sleeve 102 to rotate when the handle 21 is rotated, thereby increasing the force application point when the clamping portion 22 drives the locking sleeve 102 to rotate, and improving the stability of the connection between the clamping portion 22 and the locking sleeve 102. Moreover, when a single stop post 3 is used, to prevent the single stop post 3 from dislodging from the locking hole when the handle 21 is rotated, the handle 21 can only be rotated in a direction away from the stop post 3. When two stop posts 3 are used, the handle 21 can rotate in both forward and reverse directions, further facilitating the operator's operation.

[0038] The method of using the aircraft door handle disassembly and assembly tool of this embodiment is as follows:

[0039] First, rotate the two stopping posts 3 so that the insertion ends of the stopping posts 3 are retracted into their respective mounting holes, then place the holding portion 22 against the outside of the locking sleeve 102 to ensure that the locking sleeve 102 is located in the card slot 221, and the two stopping posts 3 are respectively opposite to the corresponding wrench holes 1021, then screw the two stopping posts 3 so that the insertion ends of the two stopping posts 3 are respectively inserted into the corresponding wrench holes 1021, and tighten the two stopping posts 3; then rotate the handle 21 to tighten or loosen the locking sleeve 102. After the locking sleeve 102 is installed, rotate the two stopping posts 3 in the opposite direction so that the insertion ends of the two stopping posts 3 are respectively disengaged from the corresponding wrench holes 1021, and then remove the aircraft cabin door handle with a disassembly tool.

[0040] In summary, the aircraft cabin door handle disassembly and assembly tool of the present invention comprises a handle 21 and a clamping portion 22 fixed to the end of the handle 21, the clamping portion 22 having a clamping groove 221 matching the outer contour of the locking sleeve 102, the groove wall of the clamping groove 221 having an opening 222 for the locking sleeve 102 to enter the clamping groove 221, a stopper column 3 is movably installed in the groove wall of the clamping groove 221, and the stopper column 3 can be moved so that the stopper column 3 can be inserted into or out of the wrench hole 1021 toward one end in the clamping groove 221. When the stopper column 3 is out of the wrench hole 1021, the clamping portion 22 can be moved. 2 is moved to a position abutting against the outside of the locking sleeve 102, and then the stop post 3 is inserted into the wrench hole 1021. The stop post 3 will block the rotation of the clamping portion 22 and the locking sleeve 102. The locking sleeve 102 can be disassembled and assembled by turning the handle 221. After the locking sleeve 102 is disassembled and assembled, the stop post 3 is moved toward the outside of the clamping portion 22 so that the stop post 3 is disengaged from the clamping portion 22 and then the clamping portion 22 is removed. This can prevent the stop post from blocking the clamping portion 22 when the clamping portion 22 is moved to the outside of the locking sleeve 102 or when the clamping portion 22 is removed from the locking sleeve 102. Therefore, the aircraft cabin door handle disassembly and assembly tool of the present invention can tightly fit the clamping portion 22 and the locking sleeve 102, avoid shaking between the clamping portion 22 and the locking sleeve 102, and further prevent the locking sleeve 102 from being scratched by the clamping portion 22, thereby ensuring that the cabin door still maintains a good appearance after multiple disassembly and assembly by the aircraft cabin door handle.

[0041] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A disassembly and assembly tool for an aircraft cabin door handle, used for disassembling and assembling a locking sleeve (102) of an aircraft cabin door handle, wherein the outer peripheral side of the locking sleeve (102) is provided with a wrench hole (1021), characterized in that: The aircraft cabin door handle disassembly and assembly tool comprises a handle (21) and a clamping portion (22) fixed to the end of the handle (21); The clamping portion (22) has a clamping groove (221) that matches the outer contour of the locking sleeve (102); the groove wall of the clamping groove (221) has an opening (222) for the locking sleeve (102) to enter the clamping groove (221); a stopper column (3) is movably installed in the groove wall of the clamping groove (221); the stopper column (3) can be moved so that the stopper column (3) can be inserted into or removed from the wrench hole (1021) toward one end in the clamping groove (221).

2. The aircraft door handle disassembly and assembly tool according to claim 1, characterized in that: The stopping column (3) has an external thread, the mounting hole is a threaded hole, and the stopping column (3) is threadedly matched with the mounting hole.

3. The aircraft door handle disassembly and assembly tool according to claim 1, characterized in that: A guide portion (31) is provided at the end of one end of the stopping column (3) inserted into the wrench hole (1021).

4. The aircraft door handle disassembly and assembly tool according to claim 3, characterized in that: The guide portion (31) is a tapered portion with its tip facing the wrench hole (1021).

5. The aircraft door handle disassembly and assembly tool according to claim 1, wherein: The end of the stopping column (3) facing away from the wrench hole (1021) is provided with a gripping portion (32).

6. The aircraft door handle disassembly and assembly tool according to claim 5, characterized in that: The gripping portion (32) is a wrench head.

7. The aircraft door handle disassembly and assembly tool according to claim 6, characterized in that: The wrench head is an inner hexagon or outer hexagon structure.

8. The aircraft door handle disassembly and assembly tool according to claim 1, wherein: The aircraft cabin door handle comprises a handle body (101) and two locking sleeves (102), wherein the two locking sleeves (102) are arranged at intervals at both ends of the handle body (101), and the interval between the two locking sleeves (102) allows a human hand to pass through to hold the handle body (101), and the length of the handle (21) is smaller than the interval.

9. The aircraft door handle disassembly and assembly tool according to claim 8, characterized in that: The length of the handle (21) is greater than or equal to half of the interval.

10. The aircraft cabin door handle disassembly and assembly tool according to any one of claims 1 to 9, characterized in that: Two wrench holes (1021) are provided on the outer side of the locking sleeve (102), and the two wrench holes (1021) are symmetrically arranged on the outer side of the locking sleeve (102); The stop columns (3) are movably mounted at positions where the groove wall of the clamping groove (221) is opposite to the two wrench holes (1021).

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