Protective cover switch trigger device

Abstract

The application discloses a protective cover switch triggering device, which comprises a protective cover, a shaft, a support, a stepped column, a spring, a micro switch and an adjusting washer. The protective cover is installed on the support through the shaft. When the protective cover rotates to a predetermined angle range, the stepped column moves downward and triggers the micro switch, and the spring is compressed to generate deformation. When the protective cover is in the predetermined angle range and no external force is applied, the protective cover can be parked and kept in an open state. When the protective cover is subjected to an external force, the deformation of the spring generates a force to promote the stepped column to return to the initial position, and the micro switch is released from the triggered state. When the device is used with the protected switch, the device has the functions of outputting two control instructions, and the protective cover can greatly reduce the probability of false triggering. When the protective cover is opened, the device outputs a control instruction as a signal of a preparation stage of a follow-up system. The protected switch can be operated only after the protective cover is opened, and the protected switch outputs a control instruction as a signal of a working stage of the follow-up system.

Description

Technical Field

[0001] This invention belongs to the technical field of helicopter control components, specifically relating to the technical field of switch control, and in particular to a protective cover switch triggering device for a control stick. Background Technology

[0002] The control of a helicopter's servo system is divided into a preparation phase and an operational phase. The control commands required for these two phases must have specific logical relationships and a temporal sequence. Typically, such a servo system requires two switch commands as control instructions; the operator operates one switch before operating the other. Under mission-defined conditions, this limitation can easily lead to accidental triggering by the operator. Therefore, a switch triggering device is needed to restrict this operation.

[0003] Currently, there are many switch triggering devices, most of which are switches with protective covers. These covers only serve to prevent accidental triggering of the switch and cannot output control commands. This poses several problems for the phased control of helicopter servo systems:

[0004] (1) Selecting two switches without protective covers is convenient and saves time, but it is very easy to trigger them accidentally.

[0005] (2) Select two switches with protective covers. The protective covers need to be opened before the switches can be operated, which is cumbersome and time-consuming. Summary of the Invention

[0006] The purpose of this invention is to address the unique logical and sequential nature of staged control in servo systems, as well as the shortcomings of traditional switch triggering devices, such as cumbersome operation, time-consuming operation, and susceptibility to accidental triggering, by providing a protective cover switch triggering device.

[0007] The technical solution to achieve the purpose of this invention is as follows: a protective cover switch triggering device, the device comprising a protective cover, a shaft, a support, a stepped column, a spring, a micro switch, and an adjusting shim; the protective cover is connected to the support via the shaft and can rotate on the support; the spring is mounted on the stepped column and is installed together with the spring inside the support; the micro switch is mounted on the adjusting shim, and the adjusting shim is mounted on the support; the protective cover pushes the stepped column downward by rotation, triggering the micro switch, and can return to its original position under the action of the spring.

[0008] Furthermore, the top of the protective cover has an annular structure, specifically, the annular structure has a curved surface structure above it, which can prevent the protective cover from returning to its original position when it is rotated to a certain angle.

[0009] Further, the support includes two side plates, and each side plate is provided with a hole at a corresponding position, the protective cover includes two side plates which are in corresponding structure with the side plates of the support, and the shaft penetrates through the corresponding holes of the side plates to connect the protective cover and the support.

[0010] Further, the support is hollow, and a stepped column and a spring are arranged inside the support, and the stepped column is arranged to penetrate through a hole in the bottom of the support to move up and down to control the closing and opening of the micro switch.

[0011] Further, the stepped column is in cooperative movement with the spring, and the stepped column is in a cylindrical structure and has a boss, and the stepped column is sleeved into the inside of the spring.

[0012] Further, the adjusting washer is arranged at the bottom of the support in cooperation with the micro switch, and the bottom of the support is provided with two mounting holes for mounting the adjusting washer, and the adjusting washer is provided with four mounting holes, two of which are used for mounting the adjusting washer at the bottom of the support, and the other two are used for fixing the micro switch.

[0013] Further, the micro switch is fixed at the bottom of the support by a screw, and the adjusting washer makes the micro switch closely cooperate with the stepped column.

[0014] Compared with the prior art, the present application has the following advantages:

[0015] (1) The protective cover switch triggering device is designed in an integrated manner, and has the functions of switch protection and output of one control instruction, thereby improving the operation convenience and efficiency.

[0016] (2) The logical sequence and time sequence of the control instruction output when the protective cover is opened and the control instruction output when the protected switch is pressed are determined by the structure, thereby improving the reliability and safety of the switch operation.

[0017] The present application will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 FIG. 1 is a structural schematic view of the protective cover switch triggering device of the present application.

[0019] Figure 2 FIG. 2 is a structural schematic view of the protective cover of the present application. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the specific technical solutions of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application, so as to make the person skilled in the art further understand the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by the person skilled in the art without creative work fall within the protection scope of the present application.

[0021] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0022] In combination with Figure 1 and Figure 2 , the present application provides a protective cover switch triggering device, the device comprising a protective cover 1, a shaft 2, a support 3, a stepped column 4, a spring 5, a micro switch 6 and an adjusting gasket 7;

[0023] The protective cover 1 is connected with the support 3 through the shaft 2 and can rotate on the support 3; the stepped column 4 is installed with the spring and is installed together with the spring 5 in the support 3; the micro switch 6 is installed on the adjusting gasket 7, and the adjusting gasket 7 is installed on the support 3; the protective cover 1 can push the stepped column 4 to move downward by rotating, trigger the micro switch 6, and can return to the original position under the action of the spring 5.

[0024] Specifically, the top of the protective cover 1 has an annular structure, and specifically, the annular structure has a curved surface structure above, which can make the protective cover 1 not return to the original position when the protective cover 1 is rotated to a certain angle, and when not affected by external force, the protective cover 1 will stop at the angle, and when affected by external force, the protective cover 1 will be more easily loosened and return to the closed position.

[0025] Specifically, the support 3 has two side plates, and specifically, each of the two side plates of the support 3 has a hole, and the side plates of the support 3 and the side plates of the protective cover 1 are corresponding structures, and the protective cover 1 is connected with the support 3 through the shaft 2.

[0026] Specifically, the inside of the support 3 is a hollow structure, the stepped column 4 and the spring 5 are installed inside the support 3, and specifically, the bottom of the support 3 has a hole, the bottom of the stepped column 4 can pass through the hole at the bottom of the support 3, and the up-down movement of the stepped column 4 can control the closing and opening of the micro switch 6.

[0027] Specifically, the stepped column 4 and the spring 5 can cooperate with each other, specifically, the stepped column 4 is a cylindrical structure and has a boss, the stepped column 4 is sleeved into the inside of the spring 5. When affected by external force, the spring 5 generates compression deformation, when the external force is removed, the spring 5 generates elongation deformation, forcing the stepped column 4 to return to the original position, at the same time, the micro switch 6 recovers from the closed state to the open state.

[0028] Specifically, the adjusting washer 7 is installed at the bottom of the support 3 in cooperation with the micro switch 6, specifically, the bottom of the support 3 has two mounting holes for mounting the adjusting washer 7, the adjusting washer 7 has four mounting holes, two of which are used to install the adjusting washer 7 on the bottom of the support 3, and the other two are used to fix the micro switch 6.

[0029] Specifically, the micro switch 6 is fixed on the bottom of the support 3 by screws, adjusting the position of the adjusting washer 7 can adjust the distance between the micro switch 6 and the stepped column 4, so that the micro switch 6 and the stepped column 4 form a close fit.

[0030] The device provided by the application is used with the protected switch, has the function of outputting two control commands, and has a protective cover, which can greatly reduce the probability of false triggering. When the protective cover is opened, the device outputs a control command as a signal for the preparation stage of the follow-up system; the protected switch can be operated only after the protective cover is opened, and the protected switch outputs a control command as a signal for the working stage of the follow-up system.

[0031] The above only describes the preferred embodiments of the application, and does not limit the implementation and protection scope of the application. For those skilled in the art, any equivalent replacement and obvious changes made according to the content of the specification and drawings should be included in the protection scope of the application.

Claims

1. A protective cover switch triggering device, characterized in that, The device includes a protective cover, a shaft, a support, a stepped column, a spring, a micro switch, and an adjusting shim. The protective cover is connected to the support via the shaft and can rotate on the support. The spring is mounted on the stepped column and installed together with the spring inside the support. The micro switch is mounted on the adjusting shim, which is also mounted on the support. The protective cover rotates to push the stepped column downwards, triggering the micro switch, and can return to its original position under the action of the spring. When the protective cover rotates to a predetermined angle range, the stepped column moves downward and triggers the micro switch. At the same time, the spring is compressed and deformed. When the protective cover is within the predetermined angle range and no external force is applied, it can stop and remain in the open state. When the protective cover is affected by external force, the deformation of the spring generates a force that causes the stepped column to return to its initial position, and the micro switch is deactivated. The top of the protective cover has an annular structure, and above the annular structure is a curved surface structure. The curved surface structure can prevent the protective cover from returning to its original position when it is rotated to a certain angle. When the device is used in conjunction with the protected switch, it has the function of outputting two control commands. When the protective cover is opened, the device outputs one control command as a signal for the preparation stage of the follow-up system. The protected switch can only be operated after the protective cover is opened, and the protected switch outputs one control command as a signal for the working stage of the follow-up system.

2. The protective cover switch triggering device according to claim 1, characterized in that, The support includes two side plates, each with a corresponding hole. The protective cover includes two side plates, which are structured to correspond to the side plates of the support. The shaft passes through the corresponding holes on the side plates to connect the protective cover and the support.

3. The protective cover switch triggering device according to claim 1, characterized in that, The support has a hollow interior with a stepped column and a spring installed inside. There is a hole at the bottom of the support, through which the bottom of the stepped column moves up and down to control the opening and closing of the micro switch.

4. The protective cover switch triggering device according to claim 1, characterized in that, The stepped column moves in conjunction with the spring. The stepped column is a cylindrical structure with a boss and is fitted inside the spring.

5. The protective cover switch triggering device according to claim 1, characterized in that, The adjusting shim is installed on the bottom of the support in conjunction with the micro switch. The bottom of the support has two mounting holes for installing the adjusting shim. The adjusting shim has four mounting holes, two of which are used to install the adjusting shim on the bottom of the support, and the other two are used to fix the micro switch.

6. The protective cover switch triggering device according to claim 1, characterized in that, The micro switch is fixed to the bottom of the support by screws. Adjusting the position of the adjusting shim can adjust the distance between the micro switch and the stepped column, so that the micro switch and the stepped column can form a tight fit.

Images