A control stick suitable for use in a general aviation aircraft

Abstract

The utility model relates to a kind of joy stick suitable for general aircraft, including circular base, the upper of base is equipped with operating handle, the middle part of base is shaped with center axis, the annular interface seat is connected on center axis by bearing, the upper end of interface seat is shaped with the interface seat sleeve of section being T type, the upper end surface of interface seat sleeve is shaped with three groups of annular distribution's interface lug;The lower end surface of operating handle is shaped with several installation legs, installation leg is respectively abutted on the outside wall of interface lug and respectively inserted with screw, screw is screwed and fixed on the interface lug of interface seat;The present joy stick design is the structure of small range autorotation, and it is compatible with the holding posture of corresponding pilot, improve the comfort of aircraft driving;Meanwhile, the range of its joy stick autorotation can be adjusted limit, to ensure the safety of driving.

Description

Technical Field

[0001] This utility model relates to the technical field of aircraft control sticks, and more specifically to a control stick suitable for general aviation aircraft. Background Technology

[0002] The aircraft control stick is the core device for pilots to control the aircraft's attitude and movement. Precise operation enables control of key flight phases such as takeoff, climb, cruise, descent, and landing. Current aircraft control sticks come in various forms, including center sticks and side sticks. They integrate multiple control switches, such as communication buttons and speed control switches. However, current control sticks generally only allow forward and backward rotation and cannot achieve relative rotation. Due to differences in pilots' physiques and various gripping habits, the inability to achieve relative rotation results in less than ideal comfort when using a fixed control stick. Therefore, some have proposed designing the control stick with a small range of self-rotation to improve piloting comfort. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a control stick suitable for general aviation aircraft. The control stick is designed with a small range of rotation to adapt to the grip posture of the pilot, thereby improving the comfort of piloting the aircraft. At the same time, the range of rotation of the control stick can be adjusted to ensure piloting safety.

[0004] A control stick suitable for general aviation aircraft includes a circular base, a control handle on top of the base, a central shaft formed in the middle of the base, and an annular connecting seat connected to the central shaft via a bearing. The upper end of the connecting seat is formed with a T-shaped connecting sleeve, and three sets of annularly distributed connecting lugs are formed on the upper end surface of the connecting sleeve. Several mounting feet are formed on the lower end surface of the control handle, and screws are inserted into the outer side walls of the connecting lugs, and the screws are screwed and fixed to the connecting lugs of the connecting seat.

[0005] The lower end face of the connecting seat has arc-shaped flanges extending downwards on its front and rear sides, and an arc-shaped limiting block is formed in the middle of the lower end face of the flanges. The upper end face of the base has arc-shaped grooves opposite to the flanges on its front and rear sides, and an arc-shaped limiting groove is formed on the bottom surface of the arc-shaped grooves. Limiting holes communicating with the limiting grooves are formed on the outer walls of the base on both sides of the arc-shaped grooves. The flanges of the connecting seat are inserted into the arc-shaped grooves of the base, and the limiting blocks are inserted into the limiting grooves of the base. Limiting posts opposite to the limiting blocks are screwed into the limiting holes of the base.

[0006] Preferably, the central axis of the central shaft on the base coincides with the central axis of the connecting seat, and the connecting lugs are evenly distributed in a ring around the central axis of the connecting seat;

[0007] The arc centers of the flange and the limiting block, as well as the arc centers of the arc groove and the limiting groove, are all located on the central axis of the connecting seat.

[0008] Preferably, the control handle has a central hole formed inside, penetrating the lower end face of the control handle, and mounting feet are distributed around the central hole;

[0009] The control handle is equipped with several control switches, and the base is formed with several data connection sockets that are plugged in and fixed. The data connection sockets are electrically connected to the control switches through wires, and the wires on the control handle are set in the center hole of the control handle.

[0010] Preferably, the screw is a countersunk screw, and the mounting leg has a countersunk hole formed therein, with the head of the screw inserted into the countersunk hole of the mounting leg.

[0011] Preferably, a plurality of positioning protrusions are formed on the lower end surface of the base, and the data connection socket is disposed between the positioning protrusions.

[0012] Preferably, a gap is provided between the bottom surface of the arc-shaped groove on the base and the lower end surface of the flange on the connecting seat.

[0013] The beneficial effects of this utility model are as follows:

[0014] This joystick is designed with a small range of rotation to match the grip posture of the pilot, improving the comfort of piloting the aircraft; at the same time, the range of rotation of the joystick can be adjusted to ensure piloting safety. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the present invention;

[0016] Figure 2 This is a side view of the structure of this utility model;

[0017] Figure 3 This is a structural schematic diagram of the present invention viewed from below;

[0018] Figure 4 for Figure 1 A schematic diagram of the cross-sectional structure at point AA.

[0019] In the diagram: 1. Base; 11. Central shaft; 12. Positioning protrusion; 13. Arc-shaped groove; 14. Limiting groove; 15. Limiting hole; 2. Connecting seat; 21. Connecting seat sleeve; 22. Connecting lug; 23. Flange; 24. Limiting block; 3. Operating handle; 4. Screw; 5. Data connection socket; 6. Control switch. Detailed Implementation

[0020] Example: See Figures 1 to 4 As shown, a control stick suitable for general aviation aircraft includes a circular base 1, a control handle 3 on the top of the base 1, a central shaft 11 formed in the middle of the base 1, and an annular connecting seat 2 connected to the central shaft 11 via a bearing. The upper end of the connecting seat 2 is formed with a connecting sleeve 21 with a T-shaped cross-section, and three sets of annularly distributed connecting lugs 22 are formed on the upper end surface of the connecting sleeve 21. The lower end surface of the control handle 3 is formed with several mounting feet 31, and the mounting feet 31 abut against the outer side wall of the connecting lugs 22 respectively, and screws 4 are inserted into them. The screws 4 are screwed and fixed to the connecting lugs 22 of the connecting seat 2.

[0021] The lower end face of the connecting seat 2 has arc-shaped flanges 23 extending downwards formed on the front and rear sides, and an arc-shaped limiting block 24 is formed in the middle of the lower end face of the flanges 23. The upper end face of the base 1 has arc-shaped grooves 13 opposite to the flanges 23 formed on the front and rear sides, and an arc-shaped limiting groove 14 is formed on the bottom surface of the arc-shaped grooves 13. Limiting holes 15 communicating with the limiting grooves 14 are formed on the outer walls of the base 1 on both sides of the arc-shaped grooves 13. The flanges 23 of the connecting seat 2 are respectively inserted into the arc-shaped grooves 13 of the base 1, and the limiting blocks 24 are respectively inserted into the limiting grooves 14 of the base 1. Limiting posts opposite to the limiting blocks 24 are screwed into the limiting holes 15 of the base 1.

[0022] The lower end face of the connecting seat 2 is embedded with several annularly distributed needle rollers, which abut against the upper end face of the base 1.

[0023] The central axis of the central shaft 11 on the base 1 coincides with the central axis of the connecting seat 2, and the connecting lugs 22 are evenly distributed in a ring around the central axis of the connecting seat 2.

[0024] The arc centers of the flange 23 and the limiting block 24, as well as the arc centers of the arc groove 13 and the limiting groove 14, are all located on the central axis of the connecting seat 2.

[0025] The control handle 3 has a central hole formed inside, which penetrates the lower end face of the control handle 3, and the mounting feet 31 are distributed around the central hole.

[0026] The control handle 3 is equipped with several control switches 6, and the base 1 is formed with several data connection sockets 5 that are plugged in and fixed. The data connection sockets 5 are electrically connected to the control switches 6 through wires. The wires on the control handle 3 are set in the center hole of the control handle 3. The mounting feet 31 are formed with wire holes, and the data connection sockets 5 are inserted into the center hole of the control handle 3 through the wire holes.

[0027] The screw 4 is a countersunk screw, and the mounting leg 31 has a countersunk hole formed on it. The head of the screw 4 is inserted into the countersunk hole of the mounting leg 31.

[0028] The lower end surface of the base 1 is formed with a plurality of positioning protrusions 12, and the data connection socket 5 is disposed between the positioning protrusions 12. The positioning protrusions 12 can be used for positioning and connection with other components on the aircraft.

[0029] A gap is provided between the bottom surface of the arc-shaped groove 13 on the base 1 and the lower end surface of the flange 23 on the connecting seat 2; this can reduce the wear caused by the relative rotation between the connecting seat 2 and the base 1.

[0030] Working principle: This structure is a control stick suitable for general aviation aircraft. The control stick consists of three main parts: control handle 3, connecting seat 2 and base 1. The control handle 3 is fixedly connected to the connecting seat 2 and rotates on the base 1. Based on the cooperation of the limiting groove 14 and the limiting block 24, the control handle 3 can rotate within a small range, thereby improving the comfort of the pilot holding the control handle 3.

[0031] Meanwhile, a limiting post is set inside the limiting hole 15. The limiting post can further block the movement of the limiting block 24 and can adjust and reduce the range of rotation.

[0032] The embodiments described above are illustrative of the present invention and are not intended to limit the present invention. Any person skilled in the art can modify the embodiments without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be as set forth in the claims.

Claims

1. A joystick suitable for general aviation aircraft, comprising a circular base (1) and a control handle (3) disposed above the base (1), characterized in that: A central shaft (11) is formed in the middle of the base (1). A circular connecting seat (2) is connected to the central shaft (11) by a bearing. A connecting seat sleeve (21) with a T-shaped cross section is formed at the upper end of the connecting seat (2). Three sets of ring-shaped connecting ears (22) are formed on the upper end surface of the connecting seat sleeve (21). Several mounting feet (31) are formed on the lower end surface of the operating handle (3). Screws (4) are inserted into the outer side wall of the connecting ears (22) respectively. The screws (4) are screwed and fixed to the connecting ears (22) of the connecting seat (2). The lower end face of the connecting seat (2) is formed with arc-shaped flanges (23) extending downwards on the front and rear sides respectively, and an arc-shaped limiting block (24) is formed in the middle of the lower end face of the flange (23); the upper end face of the base (1) is formed with arc-shaped grooves (13) opposite to the flanges (23) on the front and rear sides respectively, and an arc-shaped limiting groove (14) is formed on the bottom surface of the arc-shaped grooves (13). Limiting holes (15) communicating with the limiting grooves (14) are formed on the outer walls of the base (1) on both sides of the arc-shaped grooves (13); the flanges (23) of the connecting seat (2) are respectively inserted into the arc-shaped grooves (13) of the base (1), and the limiting blocks (24) are inserted into the limiting grooves (14) of the base (1); limiting posts opposite to the limiting blocks (24) are screwed into the limiting holes (15) of the base (1).

2. A joystick suitable for general aviation aircraft according to claim 1, characterized in that: The central axis of the central shaft (11) on the base (1) coincides with the central axis of the connecting seat (2), and the connecting lugs (22) are evenly distributed in a ring around the central axis of the connecting seat (2); The arc centers of the flange (23) and the limiting block (24), as well as the arc centers of the arc groove (13) and the limiting groove (14), are all located on the central axis of the connecting seat (2).

3. A joystick suitable for general aviation aircraft according to claim 1, characterized in that: The control handle (3) has a central hole formed inside, which penetrates the lower end face of the control handle (3), and mounting feet (31) are distributed around the central hole; The control handle (3) is equipped with several control switches (6), and the base (1) is formed with several data connection sockets (5) that are plugged in and fixed. The data connection sockets (5) are electrically connected to the control switches (6) through lines. The lines on the control handle (3) are set in the center hole of the control handle (3).

4. A joystick suitable for general aviation aircraft according to claim 3, characterized in that: The screw (4) is a countersunk screw, and the mounting leg (31) has a countersunk hole formed on it. The head of the screw (4) is inserted into the countersunk hole of the mounting leg (31).

5. A joystick suitable for general aviation aircraft according to claim 3, characterized in that: The lower end surface of the base (1) is formed with a plurality of positioning protrusions (12), and the data connection socket (5) is disposed between the positioning protrusions (12).

6. A joystick suitable for general aviation aircraft according to claim 1, characterized in that: A gap is provided between the bottom surface of the arc-shaped groove (13) on the base (1) and the lower end surface of the flange (23) on the connecting seat (2).

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