Throttle trigger unlocking mechanism with input and output shifts completely perpendicular

Abstract

This utility model discloses a throttle trigger unlocking mechanism with input and output displacements completely perpendicular. The unlocking trigger (1) is hinged to the housing (10) via a fixed shaft B (3), and the lever (5) is hinged to the housing (10) via a fixed shaft C (4). Its upper end contacts the unlocking trigger (1), and its lower end is hinged to a limiting pin (8) via a fixed shaft A (2). The limiting pin (8) is parallel to the fixed shaft B (3), with a spring (7) fitted at one end and the other end sliding through a guide cylinder (6). The fixed shaft A (2) and fixed shaft C (4) are parallel and perpendicular to the fixed shaft B (3). This utility model enables the finger to only move vertically along the palm when pressing the unlocking trigger, avoiding horizontal movement of the finger during unlocking. It allows for easier design of the trigger's initial position based on human biometrics and better maintains the operator's hand grip shape, significantly improving the ergonomics of the unlocking trigger.

Description

Technical Field

[0001] This utility model belongs to the technical field of aircraft throttle limit mechanism, specifically relating to a trigger unlocking mechanism that enables the finger input displacement and the limit pin output displacement to be completely perpendicular when a person presses the trigger. Background Technology

[0002] Currently, throttle consoles typically have a limit mechanism at a specific location, requiring the operator to unlock the throttle by pressing the release trigger. However, in existing release trigger mechanisms, the trigger rotation axis is perpendicular to the limit pin, causing the operator's finger to shift not only vertically along the palm but also laterally when pressing the trigger. This design restricts the trigger's installation position, reduces operating comfort, and affects the maintenance of the hand position on the lever, negatively impacting ergonomics. Summary of the Invention

[0003] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a throttle trigger unlocking mechanism that allows the finger to move only along the vertical direction of the palm when the user presses the unlocking trigger, avoiding the finger's movement along the horizontal direction of the palm during the unlocking process. It can also make it easier to design the initial position of the trigger according to human bio-data and better maintain the operator's hand shape on the lever, greatly improving the ergonomics of the unlocking trigger. The input and output displacements are completely perpendicular.

[0004] The purpose of this utility model and the solution to its main technical problem are achieved by the following technical solution:

[0005] This utility model discloses a throttle trigger unlocking mechanism with input and output displacements completely perpendicular, comprising an unlocking lever, fixed shaft A, fixed shaft B, fixed shaft C, a lever block, a guide cylinder, a spring, and a limiting pin. The unlocking trigger is hinged to the housing via fixed shaft B, and its pressing direction is perpendicular to the movement direction of the limiting pin. The lever block is hinged to the housing via fixed shaft C, with its upper end contacting the unlocking trigger and its lower end hinged to the limiting pin via fixed shaft A. The limiting pin is parallel to fixed shaft B, with a spring sleeved at one end and the other end slidingly passing through the guide cylinder. Fixed shaft A and fixed shaft C are parallel and both perpendicular to fixed shaft B.

[0006] The lever has a double-arm structure. The contact surface between the first arm and the unlocking trigger is a smooth plane, and the top of the second arm has a groove for fitting and fixing the shaft A.

[0007] The plane of rotation of the unlocking trigger is orthogonal to the direction of movement of the limit pin at 90°.

[0008] The spring is a compression spring, and its preload acts simultaneously on the extension and reset of the limit pin and the rotation and reset of the unlocking trigger.

[0009] The fixed shaft A limit pin moves synchronously.

[0010] Compared with existing technologies, this invention has significant advantages. As can be seen from the above technical solution: the limiting pin is embedded in the fixed groove of the throttle lever, preventing the throttle lever from moving. When the operator presses the unlock trigger, the unlock trigger rotates around the fixed shaft B, pushing the lever to rotate. The lever, through the fixed shaft A, drives the limiting pin to compress the spring, causing the limiting pin to retract into the housing, completing the unlocking. When the operator releases their hand, the spring, under its force, pushes the limiting pin out of the housing, completing the locking. Simultaneously, the limiting pin, through the fixed shaft A, pushes the lever, causing it to rotate and push the unlock trigger back to its initial position. The input and output displacements are completely perpendicular: when the operator presses the unlock trigger with their finger, the finger only moves vertically along the palm, not horizontally, improving operational comfort and ergonomics. Both the unlock trigger and the limiting pin can push the lever to rotate, making operation simple. The spring pushes the limit pin out of the housing under the action of the spring force to complete the locking. At the same time, the limit pin pushes the toggle block through the fixed shaft A. The toggle block rotates and pushes the unlocking trigger back to the initial position, making the operation convenient. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the unlocking trigger of this utility model;

[0013] Figure 3 This is a schematic diagram of the structure of the limiting pin of this utility model;

[0014] Figure 4 This is a diagram showing the state of the unlocking trigger of this utility model when it is not pressed.

[0015] Figure 5 This is a diagram showing the usage state of the press-to-unlock trigger of this utility model;

[0016] Figure 6 This is a schematic diagram of the shell structure.

[0017] Markings in the figure

[0018] 1. Unlock trigger; 2. Fixed shaft A; 3. Fixed shaft B; 4. Fixed shaft C; 5. Pulley; 6. Guide cylinder; 7. Spring; 8. Limit pin; 9. Handle; 10. Housing. Detailed Implementation

[0019] The following detailed description, in conjunction with the accompanying drawings and preferred embodiments, describes the specific implementation methods, structure, features, and effects of this utility model.

[0020] See Figure 2A trigger unlocking mechanism with input and output displacements completely perpendicular includes an unlocking trigger 1, fixed shafts A2, B3, and C4, a lever 5, a guide cylinder 6, a spring 7, and a limit pin 8. The unlocking trigger 1 is fixed to the housing 10 via fixed shaft B3. When a person presses the unlocking trigger, the trigger rotates around fixed shaft B3. Fixed shaft A2 is fixed to the limit pin 8 and moves synchronously with it. The guide cylinder 6 is fixed to the housing 10. The spring 7 is installed between the guide cylinder 6 and the limit pin 8, pushing the limit pin 8 out of the housing. The lever 5 is fixed to the housing 10 via fixed shaft C4. One end of the lever 5 is in contact with the unlocking trigger 1, and a slot on the other end is inserted into fixed shaft A2. When the unlocking trigger 1 rotates, it pushes the lever 5 to rotate around fixed shaft C4, and simultaneously, the lever 5 causes the limit pin 8 to move along the guide cylinder 6. The limit pin 8 maintains the initial position of the unlocking trigger 1 through the lever 5.

[0021] In use, a handle 9 is installed on the housing 10. To unlock the limit pin, the operator presses the unlocking trigger 1. The unlocking trigger 1 pushes the lever 5 to rotate. The lever 5, through the fixed shaft A 2, drives the limit pin 8 to compress the spring 7, causing the limit pin 8 to retract into the housing 10, thus unlocking. To relock the limit pin, the operator releases the unlocking trigger 1. The spring 7, under its force, pushes the limit pin 8 out of the housing, thus locking. Simultaneously, the limit pin 8, through the fixed shaft A 2, pushes the lever 5, causing it to rotate and push the unlocking trigger 1 back to its initial position.

[0022] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A throttle trigger unlocking mechanism with input and output displacements completely perpendicular, comprising an unlocking trigger (1), a fixed shaft A (2), a fixed shaft B (3), a fixed shaft C (4), a lever (5), a guide cylinder (6), a spring (7), and a limit pin (8), characterized in that: The unlocking trigger (1) is hinged to the housing (10) via a fixed shaft B (3), and its pressing direction is perpendicular to the movement direction of the limit pin (8); the toggle block (5) is hinged to the housing (10) via a fixed shaft C (4), its upper end is in contact with the unlocking trigger (1), and its lower end is hinged to the limit pin (8) via a fixed shaft A (2); the limit pin (8) is parallel to the fixed shaft B (3), one end of which is fitted with a spring (7), and the other end slides through the guide tube (6); the fixed shaft A (2) is parallel to the fixed shaft C (4), and both are perpendicular to the fixed shaft B (3).

2. The mechanism of claim 1, wherein: The lever (5) is a double lever structure. The contact surface between the first lever and the unlocking trigger (1) is a smooth plane, and the top of the second lever has a groove for fitting and fixing the shaft A (2).

3. The mechanism of claim 1, wherein: The plane of rotation of the unlocking trigger (1) is arranged at 90° orthogonal to the direction of movement of the limiting pin (8).

4. The mechanism as described in claim 1, characterized in that: The spring (7) is a compression spring, and its preload force acts simultaneously on the extension reset of the limit pin (8) and the rotation reset of the unlocking trigger (1).

5. The mechanism of claim 1, wherein: The fixed shaft A (2) moves synchronously with the limiting pin (8).

Images