Signal switching mechanism

Abstract

The utility model discloses a signal switching mechanism, which comprises a signal switching plectrum, and the upper part of the signal switching plectrum is rotationally connected to a signal mechanism base; and when the safety pin is inserted into the signal mechanism base, the signal switching plectrum can be pushed to rotate clockwise to trigger the microswitch to disconnect an ignition circuit. The mechanism has the characteristics of simple structure, simplicity and rapidness in operation, reliability in signal switching and the like.

Description

Technical Field

[0001] This utility model belongs to the field of airborne suspension launch technology, and in particular relates to a signal switching mechanism. Background Technology

[0002] After the airborne suspended launcher has successfully attached the suspended object to the ground, it still requires a series of ground checks before takeoff. During these checks, to prevent accidental energization that could lead to accidental release or ignition of the suspended object and cause personal injury or property damage, airborne suspended launchers are often equipped with a ground safety interface. After the suspended object is attached, a safety pin is inserted into the interface to cut off the release or ignition circuit, preventing accidents caused by accidental energization. Current technology directly uses the safety pin to actuate the microswitch contacts, which causes severe wear and tear on the microswitch contacts over long-term use; furthermore, some safety mechanisms are overly complex and have low structural reliability. Utility Model Content

[0003] Utility Model Purpose

[0004] To solve the above-mentioned technical problems, this utility model provides a signal switching mechanism.

[0005] Utility Model Technical Solution

[0006] A signal switching mechanism includes a signal switching lever, the upper part of which is rotatably connected to a signal mechanism base; when a safety pin is inserted into the signal mechanism base, it can push the signal switching lever to rotate clockwise to trigger a micro switch to disconnect the ignition circuit.

[0007] Preferably, the signal switching lever is rotatably connected to the base of the signal mechanism via a torsion spring shaft.

[0008] Preferably, it also includes a torsion spring, which is mounted on a torsion spring shaft. One end of the torsion spring is connected to the base of the signal mechanism, and the other end pulls the signal switching lever to prevent the signal switching lever from rotating counterclockwise.

[0009] Preferably, the signal switching lever has a protrusion on the side away from the micro switch. When the safety pin is inserted into the base of the signal mechanism, the safety pin can push the protrusion to rotate the signal switching lever clockwise.

[0010] Preferably, the micro switch is fixed on the micro switch base, and the micro switch base is fixed on the signal mechanism base.

[0011] Preferably, two microswitches are provided on the microswitch base, and the signal switching lever can simultaneously activate both microswitches.

[0012] Preferably, the protrusion is trapezoidal.

[0013] Preferably, the base of the signal mechanism has two holes for inserting a safety pin, which are located on both sides of the signal switching lever and are coaxial.

[0014] Preferably, the side of the protrusion facing the hole into which the safety pin is inserted is a bevel.

[0015] The advantages of this utility model are: the mechanism has the characteristics of simple structure, simple and fast operation, and reliable signal switching. Attached Figure Description

[0016] Figure 1 This is an overall isometric schematic diagram of a signal switching mechanism according to this utility model.

[0017] Figure 2 , Figure 3 This is a schematic diagram of a signal switching mechanism of this utility model after the safety pin has been inserted.

[0018] Figure 4 This is a schematic diagram of the external shape of a signal switching mechanism according to this utility model.

[0019] In the diagram: 1-Signal mechanism base; 2-Micro switch; 3-Micro switch base; 4-Torsion spring; 5-Torsion spring shaft; 6-Signal switching lever. Detailed Implementation

[0020] This utility model is achieved through the following technical solution.

[0021] A signal switching mechanism includes a signal mechanism base 1, a micro switch 2, a micro switch base 3, a torsion spring 4, a torsion spring shaft 5, and a signal switching lever 6.

[0022] The upper part of the signal switching lever 6 is rotatably connected to the signal mechanism base 1 via the torsion spring shaft 5; the torsion spring 4 is installed on the torsion spring shaft 5, one end of the torsion spring 4 is fixed to the signal mechanism base 1, and the other end pulls the signal switching lever 6 to prevent the signal switching lever 6 from rotating counterclockwise.

[0023] The micro switch 2 is fixed on the micro switch base 3. When the signal switching lever 6 rotates clockwise, the signal switching lever 6 can activate the micro switch 2. In this embodiment, two micro switches 2 are arranged side by side on the micro switch base 3, and the signal switching lever 6 can activate both micro switches 2 simultaneously.

[0024] The signal switching lever 6 has a protrusion on the side away from the micro switch in the middle. In this embodiment, the protrusion is trapezoidal. When the safety pin is inserted into the base 1 of the signal mechanism, the safety pin pushes the protrusion of the signal switching lever 6 to rotate the signal switching lever 6 clockwise and trigger the micro switch 2 to disconnect the ignition circuit. When the safety pin is pulled out, the signal switching lever 6 rotates counterclockwise under the action of the torsion spring 4 to disengage from the micro switch 2, and the ignition circuit is connected again.

[0025] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All equivalent transformations or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model. The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. A signal switching mechanism, characterized in that, Includes a signal switching lever (6) and a torsion spring (4), with the upper part of the signal switching lever (6) rotatably connected to the base (1) of the signal mechanism; The upper part of the signal switching lever (6) is rotatably connected to the base (1) of the signal mechanism via the torsion spring shaft (5); the torsion spring (4) is installed on the torsion spring shaft (5), one end of the torsion spring (4) is fixed on the base (1) of the signal mechanism, and the other end pulls the signal switching lever (6) to prevent the signal switching lever (6) from rotating counterclockwise; The micro switch (2) is fixed on the micro switch base (3), and the micro switch base (3) is fixed on the signal mechanism base (1). When the signal switching lever (6) rotates clockwise, the signal switching lever (6) can touch the micro switch (2). The signal switching paddle (6) has a protrusion on the side away from the micro switch in the middle. When the safety pin is inserted into the base (1) of the signal mechanism, the safety pin pushes the protrusion of the signal switching paddle (6) to rotate the signal switching paddle (6) clockwise and trigger the micro switch (2) to disconnect the ignition circuit.

2. The signal switching mechanism as described in claim 1, characterized in that, Two microswitches (2) are installed on the microswitch base (3), and the signal switching lever (6) can simultaneously activate the two microswitches (2).

3. The signal switching mechanism as described in claim 1, characterized in that, The protrusion is trapezoidal.

4. The signal switching mechanism as described in claim 1, characterized in that, The base (1) of the signal mechanism has two holes for inserting safety pins. The two holes for inserting safety pins are located on both sides of the signal switching lever (6) and are coaxial.

5. A signal switching mechanism as described in claim 3, characterized in that, The side of the protrusion facing the hole into which the safety pin is inserted is a bevel.

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