Pedal flexible shaft unlocking tool

Abstract

The utility model discloses a pedal flexible shaft unlocking tool which comprises an extension rod, an unlocking head is arranged at one end of the extension rod, an extension head is arranged at the end, away from the unlocking head, of the extension rod, an unlocking groove is formed in the unlocking head and faces a rod body of the extension rod from the end face of the extension rod, and the extension head is connected with the extension rod. The unlocking groove is a linear through groove, and a connecting groove is formed in the end, away from the extension rod, of the extension head. Through the arrangement of the unlocking groove, the pedal can be directly clamped to the adjusting mechanism so that the adjusting mechanism can be clamped and unlocked, and the problem of clamping stagnation of the aged airplane pedal can be quickly solved by unlocking the adjusting mechanism.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of aircraft supporting tool, more particularly, it relates to a footrest flexible axle unlocking tool. BACKGROUND

[0002] 737NG aircraft inspection finds that the footrest is stuck in the limit position, and the handle is invalid for adjustment, can only rotate half a circle, and the elastic force is very large.

[0003] At the same time, rotating the adjusting handle with excessive force will cause the fixed screw rod to break, and subsequent search and verification will be required to unlock the footrest adjusting machine, but Boeing does not provide a special unlocking tool for this purpose.

[0004] With the aging of the fleet, such problems often occur. INVENTION CONTENTS

[0005] The utility model aims at providing a footrest flexible axle unlocking tool, an auxiliary tool capable of conveniently unlocking the 737NG footrest cable.

[0006] The above technical purpose of the utility model is realized by the following technical scheme: a footrest flexible axle unlocking tool, comprising an extension rod, an extension head and an unlocking head.

[0007] The utility model further sets up that: the extension rod is provided with the unlocking head at one end, the extension rod is provided with the extension head at the end away from the unlocking head, the unlocking head is provided with the unlocking slot opened from the end face of the extension rod to the rod body of the extension rod, the unlocking slot is a straight slot, the extension head is provided with the connecting slot at the end away from the extension rod.

[0008] The utility model further sets up that: the unlocking slot is provided with the mounting hole on one side wall, the mounting hole is provided with the reset spring, the reset spring is provided with the ball bearing close to the mounting hole, at least one third of the ball body can be exposed in the unlocking slot through the mounting hole.

[0009] The utility model further sets up that: the unlocking head is provided with the straight chamfer, and the straight chamfer is located on the end face of the unlocking slot away from the extension rod.

[0010] The utility model further sets up that: the connecting slot is provided with the clamping ring slot arranged along the circumference of the extension rod.

[0011] The utility model further sets up that: the connecting slot is provided with the annular chamfer on the slot opening and located on the end face of the extension head away from the extension rod.

[0012] The utility model further sets up: the connecting groove is square opening groove.

[0013] In conclusion, the utility model has the following beneficial effects: through the setting of the unlocking groove, the adjusting mechanism can be directly clamped and unlocked, and through the unlocking of the adjusting mechanism, the aging airplane footrest clamping and sticking problem can be quickly unlocked. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is the perspective view of the tool in the embodiment of the utility model;

[0015] Figure 2 is the second perspective view of the tool in the embodiment of the utility model;

[0016] Figure 3 is the third perspective view of the tool in the embodiment of the utility model;

[0017] Figure 4 is the sectional view of the tool in the embodiment of the utility model.

[0018] In the drawing:

[0019] 1, extension head, 2, extension rod, 3, unlocking head, 4, unlocking groove, 5, connecting groove, 6, clamping ring groove, 7, annular chamfer, 8, ball spring, 9, strip chamfer. DETAILED DESCRIPTION

[0020] In order to make the personnel in the technical field better understand the utility model scheme, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model, obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor should belong to the protection scope of the utility model.

[0021] It should be noted that if the specification and claims of the utility model and the above-mentioned drawings involve the terms "first", "second" and the like, they are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the utility model described herein can be implemented. In addition, if the terms "include" and "have" and any variations thereof are involved, the intention is to cover non-exclusive inclusion, for example, the process, method, system, product or equipment including a series of steps or units does not have to be limited to the clearly listed steps or units, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0022] In addition, in the utility model, if the terms "mounting", "setting", "provided with", "connecting", "connecting", "sleeving" and the like are involved, they should be understood in a broad sense. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0023] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict. The utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0024] The following will be described in detail below with reference to the drawings and in combination with embodiments Figures 1-4 The utility model will be described in further detail.

[0025] Embodiment

[0026] As Figure 1 , Figure 2 , Figure 3 , Figure 4 Indicated, a pedal flexible shaft unlocking tool, including extension rod 2, extension head 1 and unlocking head 3.

[0027] Extension rod 2, one end of the extension rod 2 is provided with unlocking head 3, the end of the extension rod 2 away from the unlocking head 3 is provided with extension head 1, the unlocking head 3 is provided with unlocking slot 4 from the end surface of the extension rod 2 to the shaft body of the extension rod 2, the unlocking slot 4 is a straight through slot, the end of the extension head 1 away from the extension rod 2 is provided with connecting slot 5.

[0028] Through the connecting slot 5, the flexible shaft can be rotated to realize the effect of unlocking the flexible shaft, and the extension rod 2 is fixedly connected with the flexible shaft at the extension head 1, which is a rotating shaft forced rotation unlocking.

[0029] One side wall in the unlocking slot 4 is provided with a mounting hole, a reset spring is arranged in the mounting hole, the reset spring is provided with a ball bearing near the position of the mounting hole, and at least one third of the ball body can be exposed in the unlocking slot 4 through the mounting hole.

[0030] Through the setting of the ball bearing and the spring, whether it is installed in place can be found more quickly, and the installation feeling is further improved.

[0031] The unlocking head 3 is provided with a straight chamfer, and the straight chamfer is located on the end surface of the unlocking slot 4 away from the extension rod 2.

[0032] The connecting slot 5 is provided with a clamping ring groove 6 arranged along the circumference of the extension rod 2.

[0033] The setting of the clamping ring groove 6 can facilitate the connection of other extension tools.

[0034] The annular chamfer 7 is arranged on the opening of the connecting groove 5 and is located on the end surface of the extension head 1 away from the extension rod 2.

[0035] The setting of the annular chamfer 7 can facilitate the use of the unlocking tool.

[0036] The connecting groove 5 is a square opening groove.

[0037] In the embodiment, the overall size of the tool is 92.26 mm, the opening depth of the unlocking groove 44 is 8.38 mm, the width of the opening groove at both ends is 2 mm, and the diameter of the extension rod 22 is 7.96 mm.

[0038] In the embodiment, in order to facilitate the use of the product, the outer wall of the extension rod is further provided with anti-skid lines, and the anti-skid lines are embossed anti-skid lines.

[0039] In summary, the utility model has the following beneficial effects: the setting of the unlocking groove 44 can be directly clamped to the adjusting mechanism to unlock the clamping of the adjusting mechanism, and the unlocking of the adjusting mechanism can quickly unlock the aging aircraft footrest clamping and sticking problem.

[0040] Secondly, without the unlocking tool, the aircraft needs to be stopped for about 2 days for disassembly and unlocking, and the use of the tool for about 4 hours can solve the problem, which is convenient for maintenance work and saves maintenance time.

[0041] The device is simple, easy to operate and use, and does not need special equipment training for maintenance personnel. It is easy for maintenance personnel to understand the principle and easy to start. It should be noted that all the features disclosed in the specification, or all the steps in the disclosed methods or processes, can be combined in any way except for mutually exclusive features and / or steps.

[0042] In addition, the above specific embodiments are exemplary, and those skilled in the art can think of various solutions under the inspiration of the disclosure of the utility model, and these solutions also belong to the disclosed range of the utility model and fall within the protection scope of the utility model. Those skilled in the art should understand that the utility model specification and its drawings are illustrative and do not constitute a limitation on the claims. The protection scope of the utility model is defined by the claims and their equivalents.

Claims

1. A step soft shaft unlocking tool, characterized in that, The utility model relates to a kind of extension rod and extension head, including: Extension rod (2), one end of the extension rod (2) is provided with unlocking head (3), the end of the extension rod (2) away from the unlocking head (3) is provided with extension head (1), unlocking slot (4) is set on the unlocking head (3) from the end surface of the extension rod (2) to the stem of the extension rod (2), the unlocking slot (4) is straight slot, the end of the extension head (1) away from the extension rod (2) is provided with connecting slot (5).

2. A spud shaft release tool as claimed in claim 1, wherein: One side wall in the unlocking slot (4) is provided with mounting hole, reset spring is arranged in the mounting hole, the position of the reset spring close to the mounting hole is provided with ball, at least one third of the ball body can be exposed in the unlocking slot (4) by the mounting hole.

3. A spud shaft release tool as claimed in claim 2, wherein: Straight chamfer is provided on the unlocking head (3), and the straight chamfer is located on the end surface of the unlocking slot (4) away from the extension rod (2).

4. A spud shaft release tool as claimed in claim 1, wherein: The connecting slot (5) is provided with clamping ring slot (6) arranged along the circumference of the extension rod (2).

5. A spud shaft release tool as claimed in claim 4, wherein: Annular chamfer (7) is arranged on the slot opening of the connecting slot (5), and is located on the end surface of the extension head (1) away from the extension rod (2).

6. A spud shaft release tool as claimed in claim 5, wherein: The connecting slot (5) is a square opening slot.

Images