Safe centering mechanism for operating lever
By designing a control stick safety return mechanism, the compression and tension mechanism of the return section is used to automatically return the control stick to center, solving the problem of frequent operation required by the pilot, realizing automatic centering of the control stick, and reducing operator fatigue and safety hazards.
Patent Information
- Application Number
- CN202422875640.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-11-25
AI Technical Summary
The aircraft control stick cannot automatically return to center without pilot intervention, increasing the pilot's workload and posing safety risks.
A control stick safety return mechanism was designed, including a control handle, an operation box, and a control stick. Through the compression and extension mechanism of the return part, the control stick automatically returns to the vertical position after the pilot releases the control handle.
It reduces the need for pilots to frequently operate the control stick, reduces operator fatigue and safety hazards, and improves the convenience and safety of using the control stick.
Smart Images
Figure CN223658408U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a centering mechanism technical field especially a kind of operating rod safety centering mechanism. BACKGROUND
[0002] The aircraft control stick, also known as the joystick or control lever, is one of the main devices used by pilots to control the flight attitude of the aircraft. It is mainly used to change the pitch (up and down tilt) and roll (left and right tilt) angles of the aircraft, thereby controlling the aircraft's ascent, descent and turning. Pushing and pulling the control stick forward and backward can change the pitch angle of the aircraft. Pushing forward will make the aircraft tilt downward, and pulling backward will make the aircraft tilt upward. Moving the control stick left and right can make the aircraft rotate around its longitudinal axis, i.e. perform a roll action. Pushing the control stick to the left will make the left wing of the aircraft droop, and pushing it to the right will make the right wing droop.
[0003] Generally, the aircraft control stick does not have a centering mechanism, and the operation is entirely self-operated by the pilot. If the control stick is moved left and right, the aircraft will fly left and right, and will maintain this attitude unless the pilot intervenes and frequently operates the control stick, which will increase the pilot's workload. CONTENT OF THE UTILITY MODEL
[0004] The main purpose of the utility model is to provide a kind of operating rod safety centering mechanism to solve the problem that the control stick needs to be operated by the pilot to return to the center in related technology.
[0005] In order to achieve the above purpose, according to one aspect of the utility model, a kind of operating rod safety centering mechanism is provided, comprising: operating handle part, the operating handle part is fixedly connected with control stick part, and the control stick part is driven to move forward and backward by operating the operating handle part;
[0006] Operation box part, the operation box part is located below operating handle part, the operation box part includes box body assembly and guide groove assembly, the guide groove assembly is located above box body assembly, the guide groove assembly provides movement space for control stick part, and guides control stick part to move in four directions of front, back, left and right;
[0007] The lever part is located inside the operation box part, and comprises a lever, four convex balls, a connecting part and four rebound parts, the top end of the lever is fixedly connected with the lever handle part, the bottom end is rotationally connected with the bottom of the operation box part, the convex balls are fixedly arranged on the outer upper part of the lever, the connecting part is arranged on the outer circle of the lever and below the convex balls, one end of the rebound part is fixedly connected with the connecting part through a screw, and the other end is fixedly connected with the operation box part, the rebound parts are respectively arranged in front, back, left and right four directions of the connecting part, when the pilot pushes the lever to rotate to one direction, the rebound part in the same direction of the lever is compressed, and the rebound part in the opposite direction is stretched, when the pilot releases the lever, the rebound part in the same direction of the lever and the rebound part in the opposite direction are rebounded, and the lever is driven to return to the vertical state.
[0008] Further, the lever handle part comprises a horizontal plate, a main lever handle and an auxiliary lever handle, the main lever handle is fixedly arranged on one end of the upper surface of the horizontal plate, and the auxiliary lever handle is fixedly arranged on the other end of the upper surface of the horizontal plate.
[0009] Further, the box assembly comprises an operation box and four vertical plates, the operation box is internally provided with a cavity, and the vertical plates are fixedly arranged on the bottom of the operation box.
[0010] Further, the guide groove assembly comprises a transverse groove, a longitudinal groove and four guide grooves, the transverse groove is arranged on the top of the operation box along the left-right direction, the longitudinal groove is arranged on the top of the operation box along the front-rear direction, the guide grooves are arranged on both sides of the transverse groove and the longitudinal groove, the convex balls slide in the guide grooves, and the lever moves in the transverse groove and the longitudinal groove.
[0011] Further, the connecting part comprises a connecting ring, a bottom cover and a top cover, the bottom cover is fixedly arranged on the lower part of the outer circle of the lever, the top cover is rotationally arranged on the upper part of the outer circle of the lever, the connecting ring is located on the outer circle of the lever, the bottom end of the connecting ring is threadedly connected with the bottom cover, and the top end is threadedly connected with the top cover.
[0012] Further, the connecting ring comprises a first connecting body and a second connecting body, the two ends of the first connecting body are fixedly provided with first clamping grooves and first clamping bodies, the first clamping bodies are located on the outer sides of the first clamping grooves, the two ends of the second connecting body are fixedly provided with second clamping grooves and second clamping bodies, and the second clamping bodies are located on the inner sides of the second clamping grooves.
[0013] Further, the rebound part comprises a connecting block, a first spring and a second spring, the connecting block is fixedly arranged on the outer circle of the connecting ring through a screw, one end of the first spring and the second spring is fixedly connected with the connecting block, and the other end is fixedly connected with the vertical plate, the first spring is in a horizontal state, and the included angle between the second spring and the first spring is 30°-45°.
[0014] Compared with the prior art, the utility model have following beneficial effect: it is provided with rebound part in four directions of left and right before and after the connecting portion, when the pilot pushes the control lever to rotate to one direction, the rebound part in the same direction of the control lever is compressed, the rebound part in the opposite direction is stretched, when the pilot releases the control lever, the rebound part in the same direction of the control lever and the rebound part in the opposite direction all rebound, drive the control lever to restore to vertical state, do not need the pilot to interfere operation, the control lever can be safe to the center, avoid the pilot to make the control lever frequently to make him tired, reduce the security risk. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is whole schematic diagram of the utility model;
[0016] Figure 2 It is whole schematic diagram of the utility model operation box part;
[0017] Figure 3 It is internal structure schematic diagram of the utility model;
[0018] Figure 4 It is control lever part structure schematic diagram of the utility model;
[0019] Figure 5 It is rebound part structure schematic diagram of the utility model;
[0020] Figure 6 It is connecting portion structure schematic diagram of the utility model;
[0021] Figure 7 It is first connecting body structure schematic diagram of the utility model;
[0022] Figure 8 It is second connecting body structure schematic diagram of the utility model.
[0023] Brief Description of Drawings:
[0024] 1, control handle part;11, horizontal plate;12, main control handle;13, auxiliary control handle;
[0025] 2, operation box part;21, operation box body;22, vertical plate;23, transverse slot;24, longitudinal slot;25, guide slot;
[0026] 3, control lever part;31, control lever;32, convex ball;33, connecting portion;34, rebound part;341, connecting block;342, first spring;343, second spring;331, connecting ring;332, bottom cover;333, top cover;3311, first connecting body;3312, second connecting body;3313, first clamping groove;3314, first clamping body;3315, second clamping groove;3316, second clamping body. DETAILED DESCRIPTION
[0027] To further illustrate the technical means and effects taken by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model are described in detail as follows in combination with the drawings and preferred embodiments.
[0028] Please refer to Figures 1 to 8 The embodiment provides a joystick safe return mechanism, which comprises a handle part 1, the handle part 1 is fixedly connected with a joystick part 3, and the joystick part 3 is driven to move forward, backward, leftward and rightward by operating the handle part 1.
[0029] An operation box part 2 is located below the handle part 1, the operation box part 2 comprises a box body assembly and a guide groove assembly, the guide groove assembly is located above the box body assembly, the guide groove assembly provides a movement space for the joystick part 3 and guides the joystick part 3 to move in the four directions of forward, backward, leftward and rightward.
[0030] The joystick part 3 is located inside the operation box part 2, the joystick part 3 comprises a joystick 31, four convex balls 32, a connecting part 33 and four rebound parts 34, the top end of the joystick 31 is fixedly connected with the handle part 1, the bottom end is rotatably connected with the bottom of the operation box part 2, the convex balls 32 are all fixedly arranged on the upper part of the outer circle of the joystick 31, the connecting part 33 is arranged on the outer circle of the joystick 31 and located below the convex balls 32, one end of the rebound part 34 is fixedly connected with the connecting part 33 through a screw, the other end is fixedly connected with the operation box part 2, and the rebound part 34 is arranged at the four directions of front, back, left and right of the connecting part 33 respectively, when the pilot pushes the joystick 31 to rotate to one direction, the rebound part 34 in the same direction of the joystick 31 is compressed, and the rebound part 34 in the opposite direction is stretched, when the pilot releases the joystick 31, the rebound part 34 in the same direction of the joystick 31 and the rebound part 34 in the opposite direction are all rebounded, so that the joystick 31 is restored to the vertical state.
[0031] The handle part 1 comprises a horizontal plate 11, a main handle 12 and an auxiliary handle 13, the main handle 12 is fixedly arranged on one end of the upper surface of the horizontal plate 11, and the auxiliary handle 13 is fixedly arranged on the other end of the upper surface of the horizontal plate 11.
[0032] The box body assembly comprises an operation box body 21 and four vertical plates 22, the operation box body 21 is internally provided with a cavity, and the vertical plates 22 are all fixedly arranged on the bottom of the operation box body 21.
[0033] The guide groove assembly comprises a transverse groove 23, a longitudinal groove 24 and four guide grooves 25, the transverse groove 23 is arranged on the top of the operation box 21 in the left-right direction, the longitudinal groove 24 is arranged on the top of the operation box 21 in the front-rear direction, the guide grooves 25 are arranged on both sides of the transverse groove 23 and the longitudinal groove 24, the convex ball 32 slides in the guide grooves 25 to guide the operation lever 31, and the operation lever 31 moves in the transverse groove 23 and the longitudinal groove 24, so that the operation lever 31 only moves in the front-rear direction or the left-right direction.
[0034] The connecting part 33 comprises a connecting ring 331, a bottom cover 332 and a top cover 333, the bottom cover 332 is fixedly arranged at the lower part of the outer circle of the operation lever 31, the top cover 333 is rotatably arranged at the upper part of the outer circle of the operation lever 31, and the connecting ring 331 is located at the outer circle of the operation lever 31, the bottom end of the connecting ring 331 is threadedly connected with the bottom cover 332, and the top end is threadedly connected with the top cover 333.
[0035] The connecting ring 331 comprises a first connecting body 3311 and a second connecting body 3312, the first connecting body 3311 is fixedly provided with a first clamping groove 3313 and a first clamping body 3314 at both ends, the first clamping body 3314 is located outside the first clamping groove 3313, the second connecting body 3312 is fixedly provided with a second clamping groove 3315 and a second clamping body 3316 at both ends, and the second clamping body 3316 is located inside the second clamping groove 3315; when the first connecting body 3311 and the second connecting body 3312 are combined, the first clamping body 3314 presses the second clamping body 3316 to increase the connection length of the two.
[0036] The rebound part 34 comprises a connecting block 341, a first spring 342 and a second spring 343, the connecting block 341 is fixedly arranged on the outer circle of the connecting ring 331 through screws, one end of each of the first spring 342 and the second spring 343 is fixedly connected with the connecting block 341, and the other end is fixedly connected with the vertical plate 22, the first spring 342 is in a horizontal state, the second spring 343 is at an angle of 30°-45° with the first spring 342, preferably 45° in the embodiment, and the operation lever 31 is pulled in two directions to ensure normal return.
[0037] When the pilot pushes the main control handle 12 or the auxiliary control handle 13 to move left and right along the transverse slot 23 or to move forward and backward along the longitudinal slot 24, the control lever 31 is rotated synchronously with the main control handle 12 or the auxiliary control handle 13 through the horizontal plate 11, when the control lever 31 moves left along the transverse slot 23, the first spring 342 and the second spring 343 on the left side of the control lever 31 are compressed, and the first spring 342 and the second spring 343 on the right side are elongated, when the control lever 31 needs to return to the original state, the main control handle 12 and the auxiliary control handle 13 are released, the first spring 342 and the second spring 343 on both sides of the control lever 31 are returned to the original state, and the control lever 31 is rotated to return to the vertical state, and the same applies to the right, forward and backward rotation of the control lever 31, the main control handle 12 and the auxiliary control handle 13 are released, and the return part 34 can drive the control lever 31 to rotate to return to the vertical state, thereby reducing the workload of the pilot operating the control lever 31; when the connecting part 33 needs to be replaced, the screw of the return part 34 is unscrewed, the connecting ring 331 is taken out from the connecting ring 331, the top cover 333 is unscrewed from the connecting ring 331, the connecting ring 331 is unscrewed from the bottom cover 332, the first connecting body 3311 is taken out outward, the second connecting body 3312 is taken out, the new first connecting body 3311 and the second connecting body 3312 are connected together, the second clamping body 3316 is located in the first clamping groove 3313, the first clamping body 3314 is located in the second clamping groove 3315, the first connecting body 3311 and the second connecting body 3312 are pressed inward and screwed into the bottom cover 332, the top cover 333 is screwed on the top of the connecting ring 331, and finally the return part 34 is fixed on the corresponding position outside the connecting ring 331 by the screw.
[0038] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the preferred embodiment of the present application has been disclosed as above, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the technical solution of the present application, and any equivalent embodiments with equivalent changes and modifications are still within the scope of the present application.
Claims
1. A joystick safety return mechanism, characterized in that, include: The control handle (1) is fixedly connected to the control lever (3). By operating the control handle (1), the control lever (3) can be driven to move forward, backward, left and right. The operation box (2) is located below the control handle (1). The operation box (2) includes a box assembly and a guide groove assembly. The guide groove assembly is located above the box assembly. The guide groove assembly provides movement space for the control lever (3) and guides the control lever (3) to move in four directions: front, back, left, and right. The control lever part (3) is located inside the control box part (2). The control lever part (3) includes a control lever (31), four convex balls (32), a connecting part (33), and four spring-loaded parts (34). The top end of the control lever (31) is fixedly connected to the control handle part (1), and the bottom end is rotatably connected to the bottom of the control box part (2). The convex balls (32) are all fixedly located on the upper part of the outer ring of the control lever (31). The connecting part (33) is located on the outer ring of the control lever (31) and below the convex balls (32). One end of the spring-loaded part (34) is connected to the connecting part by a screw. (33) is fixedly connected, and the other end is fixedly connected to the control box (2). The spring-loaded parts (34) are respectively located in the front, back, left and right directions of the connecting part (33). When the pilot pushes the control stick (31) to rotate in one direction, the spring-loaded parts (34) in the same direction of the control stick (31) are compressed, and the spring-loaded parts (34) in the opposite direction are stretched. When the pilot releases the control stick (31), the spring-loaded parts (34) in the same direction of the control stick (31) and the spring-loaded parts (34) in the opposite direction of the control stick (31) both spring back, driving the control stick (31) back to the vertical state.
2. The joystick safety return mechanism according to claim 1, characterized in that, The control handle (1) includes a horizontal plate (11), a main control handle (12) and an auxiliary control handle (13). The main control handle (12) is fixedly disposed at one end of the upper surface of the horizontal plate (11), and the auxiliary control handle (13) is fixedly disposed at the other end of the upper surface of the horizontal plate (11).
3. The joystick safety return mechanism according to claim 1, characterized in that, The box assembly includes an operating box (21) and four vertical plates (22). The operating box (21) has a cavity inside, and the vertical plates (22) are all fixedly installed at the bottom of the operating box (21).
4. The joystick safety return mechanism according to claim 2, characterized in that, The guide slot assembly includes a transverse slot (23), a longitudinal slot (24), and four guide slots (25). The transverse slot (23) is located on the top of the operating box (21) in the left-right direction, and the longitudinal slot (24) is located on the top of the operating box (21) in the front-back direction. The guide slots (25) are located on both sides of the transverse slot (23) and the longitudinal slot (24). The convex ball (32) slides in the guide slot (25), and the control lever (31) moves in the transverse slot (23) and the longitudinal slot (24).
5. The joystick safety return mechanism according to claim 1, characterized in that, The connecting part (33) includes a connecting ring (331), a bottom cover (332) and a top cover (333). The bottom cover (332) is fixedly disposed on the lower part of the outer ring of the control lever (31), and the top cover (333) is rotatably disposed on the upper part of the outer ring of the control lever (31). The connecting ring (331) is located on the outer ring of the control lever (31). The bottom end of the connecting ring (331) is threadedly connected to the bottom cover (332), and the top end is threadedly connected to the top cover (333).
6. The joystick safety return mechanism according to claim 5, characterized in that, The connecting ring (331) includes a first connecting body (3311) and a second connecting body (3312). The first connecting body (3311) has a first slot (3313) and a first card body (3314) fixedly provided at both ends. The first card body (3314) is located outside the first slot (3313). The second connecting body (3312) has a second slot (3315) and a second card body (3316) fixedly provided at both ends. The second card body (3316) is located inside the second slot (3315).
7. The joystick safety return mechanism according to claim 5, characterized in that, The rebound part (34) includes a connecting block (341), a first spring (342) and a second spring (343). The connecting block (341) is fixed to the outer ring of the connecting ring (331) by screws. One end of the first spring (342) and the second spring (343) are fixedly connected to the connecting block (341), and the other end is fixedly connected to the vertical plate (22). The first spring (342) is horizontal, and the angle between the second spring (343) and the first spring (342) is 30°~45°.