An aircraft toe plate hitch locking device

Abstract

The application belongs to the technical field of cabin door locking mechanism design, and particularly relates to an aircraft toe plate hanging locking device. The toe plate hook is fixedly installed on a machine body structure, and comprises a hook portion and a mounting portion. The hook portion is provided with a hanging opening for matching toe plate hook shaft hanging. A linkage rotating shaft is rotatably installed on the mounting portion. The first toe plate lock is V-shaped, and comprises a locking wall and a driving wall. The locking wall and the driving wall are fixedly connected with the linkage rotating shaft. The toe plate lock driving assembly comprises a rotating rocker arm, a driving handle and a latch. One end of the rotating rocker arm is hingedly connected with the driving wall. One end of the driving handle is hingedly connected with the other end of the rotating rocker arm. The latch is installed on the other end of the driving handle. The application can effectively lock the toe plate in the hanging connection position, and the whole device is simple in structure, light in weight and safe and reliable.

Description

Technical Field

[0001] This application belongs to the field of cabin door locking mechanism design technology, and specifically relates to an aircraft toe plate mounting locking device. Background Technology

[0002] Movable suspension connection locking devices are commonly found in mechanical designs. Their main function is to safely and reliably keep the movable suspension connection in a designated position, preventing the connection from coming undone and causing functional failure or even danger.

[0003] In transport aircraft, the toeplate is attached to the end of the cargo door ramp, forming a passageway for vehicles and personnel to board and alight. To ensure the reliable position of the toeplate after attachment and prevent it from shifting under the influence of personnel, vehicles, and other loads, thus avoiding unsafe incidents, a toeplate attachment locking device is required. Current locking devices are cumbersome, with most relying on dead points to restrict movement and hold a structure in a specific position. Furthermore, the design of these locking devices lacks versatility. After the aircraft toeplate is attached, it must also allow for rotational movement while preventing it from detaching from the attachment structure; currently, there is no suitable locking device for this.

[0004] Therefore, it is desirable to have a technical solution to overcome or at least mitigate one of the aforementioned defects of the prior art. Summary of the Invention

[0005] The purpose of this application is to provide an aircraft toe plate mounting and locking device to solve at least one problem existing in the prior art.

[0006] The technical solution of this application is:

[0007] An aircraft toeplate mounting and locking device includes:

[0008] A toe plate hook is fixedly installed on the machine body structure. The toe plate hook includes a hook part and a mounting part. The hook part has a hook opening for engaging with the toe plate hanging shaft. A linkage shaft is rotatably mounted on the mounting part.

[0009] The first toe plate lock is V-shaped and includes a locking wall and a driving wall. The locking wall and the driving wall are fixedly connected to the linkage shaft.

[0010] The toe lock drive assembly includes a rotating rocker arm, a drive handle, and a latch lock, wherein...

[0011] One end of the rotating rocker arm is hinged to the drive wall;

[0012] One end of the drive handle is hinged to the other end of the rotating rocker arm;

[0013] The latch lock is installed at the other end of the drive handle;

[0014] In use, the latch lock is opened, and the drive handle is rotated. The drive handle drives the first toe plate lock to rotate through the rotating rocker arm, so that the locking wall moves to the hook opening to achieve hook locking, or so that the locking wall moves away from the hook opening to achieve hook locking release.

[0015] In at least one embodiment of this application,

[0016] The toe plate hook includes two hooks, which are connected by the linkage shaft.

[0017] The first toe plate lock is installed at one end of the linkage shaft, and the other end of the linkage shaft is equipped with a second toe plate lock in the shape of a straight line, the second toe plate lock having a locking wall.

[0018] In at least one embodiment of this application, a retaining spring is mounted on the mounting portion of the toe plate hook, and the pivot of the rotating rocker arm passes through the mounting portion and is connected to the retaining spring.

[0019] In at least one embodiment of this application, the end of the retaining spring is provided with a connecting lug, which is fixedly mounted on the toe plate hook by bolts.

[0020] In at least one embodiment of this application, the bolt lock includes a bolt lock support and a bolt lock handle. The bolt lock support is fixedly installed on the machine body structure. The bolt lock support and the drive handle are provided with matching pin holes. The bolt lock support and the drive handle are positioned by the bolt lock handle.

[0021] In at least one embodiment of this application, two connecting lugs are symmetrically arranged on the pin lock support, and are fixedly installed on the machine body structure by bolts.

[0022] The invention has at least the following beneficial technical effects:

[0023] The aircraft toe plate mounting and locking device of this application can effectively lock the toe plate in the suspension connection position. The whole device is simple in structure, lightweight, safe and reliable. Attached Figure Description

[0024] Figure 1 This is an overall schematic diagram of an aircraft toe plate mounting and locking device according to one embodiment of this application;

[0025] Figure 2 This is a schematic diagram of an aircraft toe plate mounting and locking device after removing the toe plate hook according to one embodiment of this application.

[0026] in:

[0027] 1-Toe plate hanging shaft; 2-Toe plate hook; 3-First toe plate lock; 4-Rotating rocker arm; 5-Drive handle; 6-Pin lock support; 7-Pin lock handle; 8-Linkage rotating shaft; 9-Retaining spring; 10-Second toe plate lock. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0029] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this application.

[0030] The following is in conjunction with the appendix Figures 1 to 2 This application will be described in further detail.

[0031] This application provides an aircraft toeboard mounting and locking device, including: a toeboard hook 2, a first toeboard lock 3, and a toeboard lock drive assembly.

[0032] Specifically, such as Figure 1As shown, the toe plate hook 2 is fixedly installed on the machine body structure. The toe plate hook 2 includes a hook part and a mounting part. The hook part is used for hooking the toe plate hanging shaft 1. The hook part has a hooking opening for hooking the toe plate hanging shaft 1. The mounting part has a shaft hole, and a linkage shaft 8 is rotatably installed in the shaft hole of the mounting part. The first toe plate lock 3 is V-shaped. The first toe plate lock 3 includes a locking wall and a driving wall. The locking wall can cooperate with the hook part on the toe plate hook 2 to block the hooking opening. The driving wall is used to connect with the toe plate lock drive assembly. A connecting part is provided between the locking wall and the driving wall. This connecting part is fixedly connected to the linkage shaft 8 by bolts. The toe plate lock drive assembly includes a rotating rocker arm 4, a driving handle 5, and a pin lock. One end of the rotating rocker arm 4 is hinged to the driving wall of the first toe plate lock 3; one end of the driving handle 5 is hinged to the other end of the rotating rocker arm 4; and the pin lock is installed at the other end of the driving handle 5.

[0033] In use, the aircraft toe plate mounting and locking device of this application is used by opening the latch lock and rotating the drive handle 5. The drive handle 5 drives the first toe plate lock 3 to rotate clockwise or counterclockwise by rotating the rocker arm 4, so that the locking wall moves to the mounting opening to achieve mounting and locking, or so that the locking wall moves away from the mounting opening to achieve mounting and locking release.

[0034] In a preferred embodiment of this application, the toe plate hook 2 includes two hooks connected by a linkage shaft 8. A first toe plate lock 3 is installed at one end of the linkage shaft 8, and a second toe plate lock 10 in a straight line shape is installed at the other end of the linkage shaft 8. The second toe plate lock 10 has a locking wall. It is understood that multiple sets of toe plate hooks 2 and straight toe plate locks can be adapted and installed, with multiple sets connected by the linkage shaft 8 and evenly distributed to improve the reliability of toe plate locking.

[0035] In a preferred embodiment of this application, a retaining spring 9 is installed on the mounting portion of the toe plate hook 2. The rotating shaft of the rocker arm 4 passes through the mounting portion and is connected to the retaining spring 9. Under the tension of the retaining spring 9, the rotating shaft of the rocker arm 4 is driven to rotate clockwise, thereby keeping the toe plate lock in the closed position. In this embodiment, the end of the retaining spring 9 is provided with a connecting lug, which is fixedly installed on the toe plate hook 2 by bolts.

[0036] In a preferred embodiment of this application, the bolt lock includes a bolt lock support 6 and a bolt lock handle 7. The bolt lock support 6 is fixedly mounted on the machine body structure. Matching pin holes are provided on both the bolt lock support 6 and the drive handle 5. The bolt lock support 6 and the drive handle 5 are positioned by the bolt lock handle 7. In this embodiment, two connecting lugs are symmetrically arranged on the bolt lock support 6, and are fixedly mounted on the machine body structure by bolts.

[0037] The working principle of the aircraft toe plate mounting and locking device of this application is as follows:

[0038] (1) When the toe plate needs to be hooked: Pull out the latch lock handle 7, unlock the drive handle 5, operate the drive handle 5 counterclockwise, and the drive handle 5 drives the first toe plate lock 3 to rotate by rotating the rocker arm 4. Under the action of the linkage shaft 8, the locking walls of all toe plate locks move away from the hooking opening of the toe plate hook 2, hook the toe plate hook 2 onto the toe plate hanging shaft 1, and complete the toe plate hooking.

[0039] (2) When locking is required after the toe plate is attached: pull the bolt lock handle 7 out of the bolt lock support 6, keep the drive handle 5 in a movable operating state, rotate the drive handle 5 clockwise, and the drive handle 5 drives the first toe plate lock 3 to rotate by rotating the rocker arm 4. Under the action of the linkage shaft 8, the locking wall of all toe plate locks moves to the attachment opening of the toe plate hook 2, locking the toe plate hanging shaft 1 in the toe plate hook 2, ensuring the reliability of the toe plate attachment.

[0040] The aircraft toe plate mounting and locking device of this application, after the toe plate is mounted at the mounting point at the end of the ramp, operates the drive handle 5 to rotate the rocker arm 4, causing the toe plate lock to lock the toe plate hook 2 onto the toe plate mounting shaft 1. At this time, the direction of disengagement of the toe plate mounting shaft 1 passes through the dead point position of the toe plate lock mechanism, thus ensuring a reliable lock and preventing the load of the mounting shaft from being transmitted to the control handle. After the toe plate lock has moved to its position, the drive handle 5 can be locked by the pin lock handle 7 in conjunction with the pin lock support 6 to prevent the toe plate lock from being accidentally opened.

[0041] The aircraft toe plate mounting and locking device of this application uses the drive handle 5 to drive the rocker arm 4 to connect the toe plate lock. When the toe plate lock is in the closed position, the pin lock is locked, and the toe plate can be reliably fixed on the toe plate hook 2. Thus, after the toe plate is suspended and mounted, the toe plate pin lock is locked in the locked position to prevent the toe plate from falling off during use, thereby ensuring that the toe plate lock can reliably lock the toe plate.

[0042] The aircraft toe plate mounting and locking device of this application cleverly connects the pin lock, drive handle 5, and toe plate lock, avoiding direct load transfer to the pin and preventing the mounting shaft from detaching after locking. This device features an ingenious mechanism, a simple and compact structure, no other complex additional mechanisms, easy component manufacturing, lightweight and low cost, reliable locking, convenient operation, and ensures locking security. It is primarily used in cabin door structure design but can also be applied to the design of other suspension and mounting structures.

[0043] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An aircraft toe plate mounting and locking device, characterized in that, include: Toe plate hook (2), the toe plate hook (2) is fixedly installed on the machine body structure, the toe plate hook (2) includes a hook part and an installation part, the hook part has a hook opening for engaging with the toe plate hanging shaft (1), and a linkage shaft (8) is rotatably installed on the installation part. The first toe plate lock (3) is V-shaped. The first toe plate lock (3) includes a locking wall and a driving wall. The locking wall and the driving wall are fixedly connected to the linkage shaft (8). The toe plate lock drive assembly includes a rotating rocker arm (4), a drive handle (5), and a bolt lock, wherein, One end of the rotating rocker arm (4) is hinged to the drive wall; One end of the drive handle (5) is hinged to the other end of the rotating rocker arm (4); The latch lock is installed at the other end of the drive handle (5); When in use, open the latch lock and rotate the drive handle (5). The drive handle (5) drives the first toe plate lock (3) to rotate through the rotating rocker arm (4), so that the locking wall moves to the hook opening to achieve hook locking, or so that the locking wall moves away from the hook opening to achieve hook locking release. The toe plate hook (2) includes two, and the two toe plate hooks (2) are connected by the linkage shaft (8); The first toe plate lock (3) is installed at one end of the linkage shaft (8), and the other end of the linkage shaft (8) is equipped with a second toe plate lock (10) in the shape of a straight line. The second toe plate lock (10) has a locking wall.

2. The aircraft toe plate mounting and locking device according to claim 1, characterized in that, A retaining spring (9) is installed on the mounting part of the toe plate hook (2), and the pivot of the rotating rocker arm (4) passes through the mounting part and is connected to the retaining spring (9).

3. The aircraft toe plate mounting and locking device according to claim 2, characterized in that, The end of the retaining spring (9) is provided with a connecting lug, which is fixedly installed on the toe plate hook (2) by bolts.

4. The aircraft toe plate mounting and locking device according to claim 1, characterized in that, The bolt lock includes a bolt lock support (6) and a bolt lock handle (7). The bolt lock support (6) is fixedly installed on the machine body structure. The bolt lock support (6) and the drive handle (5) are provided with matching pin holes. The bolt lock support (6) and the drive handle (5) are positioned by the bolt lock handle (7).

5. The aircraft toe plate mounting and locking device according to claim 4, characterized in that, Two connecting lugs are symmetrically arranged on the pin lock support (6), which are fixedly installed on the machine body structure by bolts.

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