Upper backstop disassembling and assembling tool

Abstract

The utility model relates to the technical field of aircraft maintenance, and discloses an upper backstop dismounting and mounting tool which comprises a connector, a connecting rod, a positioning rod, a first wing plate and a second wing plate, and the connector, the connecting rod and the positioning rod are fixedly connected in sequence. The central axis of the connector, the central axis of the connecting rod and the central axis of the positioning rod are all located on the first axis, the first wing plate and the second wing plate are both fixedly arranged on the connecting rod and oppositely arranged on the two sides of the central axis of the connecting rod, and the end faces of the ends, away from the connector, of the first wing plate and the second wing plate are both arc faces. The axis of the arc surface of the first wing plate and the axis of the arc surface of the second wing plate are collinear, and the axis of the arc surface of the first wing plate and the axis of the arc surface of the second wing plate are both perpendicular to and intersect with the first axis. According to the upper backstop dismounting and mounting tool, the dismounting and mounting efficiency of the upper backstop of the pilot seat can be greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft maintenance, in particular to an upper stopper disassembly and assembly tool. Background Art

[0002] The pilot's seat is a crucial piece of equipment in civil aircraft. The pilot is a key human factor in ensuring aircraft safety, and the controllability and comfort of the pilot's seat have a direct impact on their mood. A malfunction or failure of the pilot's seat not only affects the pilot's comfort but also, by preventing them from assuming the optimal driving position, impairs their field of vision, leading to deviations in aircraft control and threatening flight safety. In the event of a crash, the pilot could be injured or even killed if the seat's static and dynamic loads fail to meet requirements. Therefore, the maintenance and repair of the pilot's seat is a crucial component of civil aircraft operations.

[0003] like Figure 1 The figure shows the pilot seat of the A320 series aircraft. The removal and installation of the upper stopper 10 on the pilot seat is an important step in the removal and installation of the pilot seat motor. Figure 2 - Figure 4 The diagram shows the upper stopper 10. Due to the special groove shape of the special groove 101 on the upper stopper 10, the special groove 101 includes a cylindrical groove 1011 at the bottom and a circular arc groove 1012 at the top of the cylindrical groove 1011. The axis of the circular arc groove 1012 is perpendicular to the axis of the cylindrical groove 1011. There is currently no special disassembly and assembly tool for the upper stopper 10. Currently, the operation and maintenance personnel usually use a flat-blade cutter to insert into the special groove 101 of the upper stopper 10 to disassemble it. Since the shape of the flat-blade cutter does not match the shape of the special groove 101, the depth of the flat-blade cutter inserted into the special groove 101 is limited, making disassembly difficult. If the upper stopper 10 is installed too tightly, the flat-blade cutter will not be able to disassemble the upper stopper 10. When the flat-blade cutter cannot disassemble the upper stopper 10, the operator will generally use a reverse tap and pliers to disassemble the upper stopper 10, which results in a significant increase in working hours. At the same time, due to the use of reverse taps, the workpiece has a certain degree of damage. If the damage is too large, it is necessary to re-order the upper stopper 10. It is a waste of manpower and cost.

[0004] Therefore, there is an urgent need for an upper stopper disassembly and assembly tool to solve the above problems. Utility Model Content

[0005] The utility model aims to provide an upper stopper disassembly and assembly tool, which is convenient for disassembly and assembly of the upper stopper of a pilot seat.

[0006] In order to achieve the above-mentioned purpose, the utility model provides an upper stop disassembly and assembly tool, comprising: a connecting head, a connecting rod, a positioning rod, a first wing plate and a second wing plate, the connecting head, the connecting rod and the positioning rod are fixedly connected in sequence, and the central axis of the connecting head, the central axis of the connecting rod and the central axis of the positioning rod are all located on the first axis, the first wing plate and the second wing plate are both fixedly arranged on the connecting rod and are relatively arranged on both sides of the central axis of the connecting rod, the end faces of the first wing plate and the second wing plate away from the connecting head are both arc surfaces, the axis of the arc surface of the first wing plate is collinear with the axis of the arc surface of the second wing plate, and the axis of the arc surface of the first wing plate and the axis of the arc surface of the second wing plate are both perpendicular to and intersect with the first axis.

[0007] As an improvement of the above technical solution, the connector is provided with a plurality of connecting surfaces, and the plurality of connecting surfaces are sequentially connected end to end along the circumference of the connector.

[0008] As an improvement of the above technical solution, six connecting surfaces are provided.

[0009] As an improvement to the above technical solution, the end surface of the connecting head away from the connecting rod is a plane.

[0010] As an improvement to the above technical solution, each of the connecting surfaces intersects with the end surface.

[0011] As an improvement to the above technical solution, the connecting rod and the positioning rod are both cylindrical, and the diameter of the positioning rod is smaller than the diameter of the connecting rod.

[0012] As an improvement of the above technical solution, the connecting rod is cylindrical, the positioning rod is truncated cone, and the diameter of one end of the positioning rod connected to the connecting rod is equal to the diameter of the connecting rod, and the diameter of one end of the positioning rod away from the connecting rod is smaller than the diameter of the connecting rod.

[0013] As an improvement of the above technical solution, the diameter of the arc surface is 20 mm.

[0014] As an improvement of the above technical solution, the diameter of the connecting rod is 3.6 mm.

[0015] As an improvement of the above technical solution, the length of the positioning rod along the first axis direction is 3.2 mm.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The upper stop disassembly and assembly tool of the present invention is configured such that, when disassembling and installing the upper stop, the lower portion of the upper stop disassembly and assembly tool is inserted into the special-shaped groove on the upper stop, wherein the positioning rod extends into the cylindrical groove at the bottom of the special-shaped groove, and the lower portions of the first wing plate and the second wing plate are located in the arc-shaped groove, with the arc surface abutting the bottom of the arc-shaped groove. The positioning rod serves to position the upper stop disassembly and assembly tool relative to the special-shaped groove, so that the first wing plate and the second wing plate have as large an overlap area as possible with the side wall of the arc-shaped groove, and the connector is used to connect the operating handle. By twisting the upper stop disassembly and assembly tool, the upper stop is driven to rotate, thereby achieving disassembly and installation of the upper stop. When twisting the upper stop disassembly and assembly tool, the torque acts on the side wall of the arc-shaped groove through the first wing plate and the second wing plate, driving the upper stop to rotate. The upper stop disassembly and assembly tool of the present invention can greatly improve the efficiency of disassembling and installing the upper stop of the pilot seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a pilot seat for an A320 series aircraft provided by an embodiment of the present utility model;

[0019] Figure 2 It is a side view of the upper stop provided by an embodiment of the utility model;

[0020] Figure 3 This is a top view of the upper stop provided by an embodiment of the utility model;

[0021] Figure 4 This is a cross-sectional view of an upper stop provided by an embodiment of the present utility model;

[0022] Figure 5 This is a structural diagram of the upper stopper disassembly and assembly tool provided in the first embodiment of the present utility model;

[0023] Figure 6 This is a bottom view of the upper stopper disassembly and assembly tool provided in the first embodiment of the present utility model;

[0024] Figure 7 It is a side view of the upper stopper disassembly and assembly tool provided in the second embodiment of the present utility model.

[0025] In the picture:

[0026] 1. Connector; 11. Connecting surface; 12. End surface;

[0027] 2. Connecting rod; 3. Positioning rod; 4. First wing plate; 5. Second wing plate; 6. Arc surface;

[0028] 10. Upper stopper; 101. Special-shaped groove; 1011. Cylindrical groove; 1012. Arc-shaped groove. DETAILED DESCRIPTION

[0029] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0030] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0031] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0032] In the description of this embodiment, terms such as "upper," "lower," and "right" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0033] like Figure 1 The following is a schematic diagram of the structure of the pilot seat of the A320 series aircraft. Figure 2 - Figure 4 The figure shows a schematic diagram of the upper stopper 10, wherein a special-shaped groove 101 is provided on the top of the upper stopper 10, and the special-shaped groove 101 includes a cylindrical groove 1011 at the bottom end and an arc-shaped groove 1012 at the top end of the cylindrical groove 1011, and the axis of the arc-shaped groove 1012 (that is, the axis of the arc surface at the bottom of the arc-shaped groove 1012) is perpendicular to the axis of the cylindrical groove 1011.

[0034] Example 1

[0035] like Figure 5 and Figure 6As shown, this embodiment provides an upper stop disassembly and assembly tool for disassembling and installing the upper stop 10 of the pilot seat motor of the A320 series aircraft. The upper stop disassembly and assembly tool includes a connecting head 1, a connecting rod 2, a positioning rod 3, a first wing panel 4 and a second wing panel 5. The connecting head 1, the connecting rod 2 and the positioning rod 3 are fixedly connected in sequence, and the central axis of the connecting head 1, the central axis of the connecting rod 2 and the central axis of the positioning rod 3 are all located on the first axis, that is, the central axis of the connecting head 1, the central axis of the connecting rod 2 and the central axis of the positioning rod 3 are all collinear with the first axis. The first wing panel 4 and the second wing panel 5 are both fixedly arranged on the connecting rod 2 and are relatively arranged on both sides of the central axis of the connecting rod 2. The end faces 12 of the first wing panel 4 and the second wing panel 5 at one end away from the connecting head 1 are both arc surfaces 6. The axis of the arc surface 6 of the first wing panel 4 is collinear with the axis of the arc surface 6 of the second wing panel 5. The axis of the arc surface 6 of the first wing panel 4 and the axis of the arc surface 6 of the second wing panel 5 are both perpendicular to and intersect with the first axis. In this embodiment, the diameter of the arc surface 6 is 20 mm, the diameter of the connecting rod 2 is 3.6 mm, and the length of the positioning rod 3 along the first axis direction is 3.2 mm.

[0036] When disassembling and installing the upper stop 10, the lower portion of the upper stop assembly and disassembly tool provided in this embodiment is inserted into the special-shaped groove 101 on the upper stop 10, wherein the positioning rod 3 extends into the cylindrical groove 1011 at the bottom of the special-shaped groove 101, and the lower portions of the first wing plate 4 and the second wing plate 5 are located in the arc-shaped groove 1012, with the arc surface 6 abutting against the bottom of the arc-shaped groove 1012. The positioning rod 3 serves to position the upper stop assembly and disassembly tool relative to the special-shaped groove 101, so that the first wing plate 4 and the second wing plate 5 have as large an overlap area as possible with the sidewall of the arc-shaped groove 1012. The connector 1 is used to connect the operating handle, which is a common device in this field and the specific structure is not described here. The upper stop 10 is rotated by screwing the upper stop disassembly and assembly tool, thereby realizing the disassembly and installation of the upper stop 10. When the upper stop disassembly and assembly tool is screwed, the torque acts on the side wall of the arc-shaped groove 1012 through the first wing plate 4 and the second wing plate 5, driving the upper stop 10 to rotate.

[0037] Optionally, the connector 1 is provided with multiple connecting surfaces 11, which are connected end to end along the circumference of the connector 1. The end surface 12 of the connector 1 facing away from the connecting rod 2 is a flat surface. Each connecting surface 11 intersects with the end surface 12. In this embodiment, there are six connecting surfaces 11. The hexagonal prism-shaped connector 1 facilitates connection with a universal operating handle.

[0038] Optionally, both the connecting rod 2 and the positioning rod 3 are cylindrical, and the diameter of the positioning rod 3 is smaller than the diameter of the connecting rod 2 .

[0039] From a functional perspective, the upper stopper 10's outer surface is a bearing structure, designed to facilitate better meshing of the guide rail with the motor gear. The upper stopper 10 must be installed vertically. If the upper stopper 10 is not installed vertically, uneven force will be applied to the meshing guide rail and motor gear, accelerating gear aging and shortening the motor's lifespan. The upper stopper assembly and disassembly tool in this embodiment facilitates vertical installation of the upper stopper 10.

[0040] Example 2

[0041] like Figure 7 As shown, this embodiment provides an upper stop disassembly and assembly tool, and its specific structure is basically the same as that in Example 1. The difference is that the positioning rod 3 in this embodiment is frustum-shaped, and the diameter of the end of the positioning rod 3 connected to the connecting rod 2 is equal to the diameter of the connecting rod 2, and the diameter of the end of the positioning rod 3 away from the connecting rod 2 is smaller than the diameter of the connecting rod 2.

[0042] 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. An upper stopper disassembly and assembly tool, characterized in that: include: A connecting head (1), a connecting rod (2), a positioning rod (3), a first wing plate (4) and a second wing plate (5); the connecting head (1), the connecting rod (2) and the positioning rod (3) are fixedly connected in sequence, and the central axis of the connecting head (1), the central axis of the connecting rod (2) and the central axis of the positioning rod (3) are all located on the first axis; the first wing plate (4) and the second wing plate (5) are both fixedly arranged on the connecting rod (2) and are relatively arranged on both sides of the central axis of the connecting rod (2); the end surfaces (12) of the first wing plate (4) and the second wing plate (5) at one end away from the connecting head (1) are both arc surfaces (6); the axis of the arc surface (6) of the first wing plate (4) and the axis of the arc surface (6) of the second wing plate (5) are collinear; the axis of the arc surface (6) of the first wing plate (4) and the axis of the arc surface (6) of the second wing plate (5) are both perpendicular to and intersect with the first axis.

2. The upper stopper disassembly and assembly tool according to claim 1, characterized in that: The connector (1) is provided with a plurality of connecting surfaces (11), and the plurality of connecting surfaces (11) are sequentially connected end to end along the circumference of the connector (1).

3. The upper stopper disassembly and assembly tool according to claim 2, characterized in that: Six connecting surfaces (11) are provided.

4. The upper stopper disassembly and assembly tool according to claim 3, characterized in that: The end surface (12) of the connecting head (1) away from the connecting rod (2) is a plane.

5. The upper stopper disassembly and assembly tool according to claim 4, characterized in that: Each of the connecting surfaces (11) intersects with the end surface (12).

6. The upper stopper disassembly and assembly tool according to claim 1, characterized in that: The connecting rod (2) and the positioning rod (3) are both cylindrical, and the diameter of the positioning rod (3) is smaller than the diameter of the connecting rod (2).

7. The upper stopper disassembly and assembly tool according to claim 1, characterized in that: The connecting rod (2) is cylindrical, the positioning rod (3) is truncated cone, and the diameter of one end of the positioning rod (3) connected to the connecting rod (2) is equal to the diameter of the connecting rod (2), and the diameter of one end of the positioning rod (3) away from the connecting rod (2) is smaller than the diameter of the connecting rod (2).

8. The upper stopper disassembly and assembly tool according to any one of claims 1 to 7, characterized in that: The diameter of the arc surface (6) is 20 mm.

9. The upper stopper disassembly and assembly tool according to any one of claims 1 to 7, characterized in that: The diameter of the connecting rod (2) is 3.6 mm.

10. The upper stopper disassembly and assembly tool according to any one of claims 1 to 7, characterized in that: The length of the positioning rod (3) along the first axis direction is 3.2 mm.

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