An unlockable self-rebound ultra-light space camera dust cover

Abstract

The application provides an ultra-light dustproof cover for a space camera, which can be unlocked and self-rebound. The cover is composed of a composite material circular deformation area, a composite material fixed end and a composite material movable end. In the initial state, the composite material fixed end is hinged to the space camera, and the composite material circular deformation area and the composite material movable end are rolled into a "picture shaft". When a load is applied to the composite material circular deformation area, the composite material circular deformation area can be gradually unfolded. When the composite material movable end is hinged to the space camera, the fully unfolded state can be maintained to realize the dustproof function. When the hinge constraint of the composite material movable end is removed, the composite material circular deformation area can quickly recover to the initial state of "picture shaft" by using the strain energy stored in the composite material circular deformation area. The application has the advantages of simple structure, low cost, small quality, small volume, high rigidity and high reliability, and excellent comprehensive performance, and therefore, the application has good engineering application value.

Description

TECHNICAL FIELD

[0001] The application provides a self-rebound unlocking ultra-light space camera dust cover, and belongs to the field of space navigation. BACKGROUND

[0002] The working site of a space camera is in a harsh environment, and there are a large amount of dust and heat radiation in the space. The space camera is a precision instrument and is easily affected by the surrounding environment. Dust can easily enter the inside of the camera body and stick to the photosensitive plate, so that black spots appear on the picture during imaging, which seriously affects the imaging quality. Therefore, a stable and suitable working environment is an important guarantee for the continuous and stable work of the space camera, and is of great significance for improving the imaging contrast and the imaging quality of the space optical system. The application provides a self-rebound unlocking ultra-light space camera dust cover, which has the advantages of simple structure, small mass, low cost, small volume, large rigidity, high reliability and the like, and is easy to implement. SUMMARY

[0003] 1. The purpose of the application is to provide a self-rebound unlocking ultra-light space camera dust cover, so as to solve the problems of large volume, large weight, complex structure and low precision of the existing dust cover. The device can fully cooperate with the use of space, does not affect the imaging quality, and can fundamentally prevent dust and the like from entering the lens, effectively protecting the photosensitive plate.

[0004] 2. The application provides a self-rebound unlocking ultra-light space camera dust cover, which is composed of a composite material circular deformation zone, a composite material fixed end and a composite material movable end. In the initial state, the composite material fixed end is fixed to the space camera through a hinge, and the composite material circular deformation zone and the composite material movable end are rolled into a "picture shaft". The composite material circular deformation zone has a large deformation capacity, and when a load is applied to the composite material circular deformation zone, the composite material circular deformation zone can gradually expand. When the composite material movable end is fixed to the space camera through a hinge in the fully expanded state, the fully expanded state can be maintained to realize the dustproof function. When the optical camera needs to work, the hinge constraint of the composite material movable end is removed, and the strain energy stored in the composite material circular deformation zone is used to quickly recover to the initial state of "picture shaft". BRIEF DESCRIPTION OF DRAWINGS

[0005] Figure 1 is a self-rebound unlocking ultra-light space camera dust cover initial state schematic diagram.

[0006] Figure 2 is a self-rebound unlocking ultra-light space camera dust cover partially expanded state schematic diagram.

[0007] Figure 3 is a self-rebound unlocking ultra-light space camera dust cover fully expanded state schematic diagram.

[0008] Figure 1 Fig. 1: 1. Space camera, 2. Composite material circular deformation area.

[0009] Figure 2 Fig. 3: 3. Composite material fixed end.

[0010] Figure 3 Fig. 4: 4. Composite material movable end. DETAILED DESCRIPTION

[0011] The application will be further described in conjunction with the accompanying drawings and examples.

[0012] The application is a dustproof cover for a super-light space camera which can be unlocked and self-recovered. It is composed of a composite material circular deformation area 2, a composite material fixed end 3 and a composite material movable end 4. In the initial state, the composite material fixed end 3 is fixed to the space camera 1 by hinging, and the composite material circular deformation area 2 and the composite material movable end 4 are rolled into a "picture shaft" shape (as shown in Fig. 1). Figure 1 The composite material circular deformation area 2 has a large deformation capacity. When a load is applied to the composite material circular deformation area 2, the composite material circular deformation area 2 can gradually unfold (as shown in Fig. 2). Figure 2 When the fully unfolded state is reached, the composite material movable end 4 can be fixed to the space camera 1 by hinging, and the fully unfolded state can be maintained to achieve the dustproof function (as shown in Fig. 3). Figure 3 When the space camera 1 needs to work, the hinging constraint of the composite material movable end 4 is removed, and the strain energy stored in the composite material circular deformation area 2 is used to quickly recover to the initial "picture shaft" state.

Claims

1. An unlockable self-rebound ultra-light dust cover for a space camera, characterized in that: The composite material circular deformation area, the composite material fixed end and the composite material movable end constitute; in the initial state, the composite material fixed end is fixed through hinging with the space camera, and the composite material circular deformation area and the composite material movable end are rolled into a "picture shaft shape"; the composite material circular deformation area has a large deformation capacity, and when a load is applied to the composite material circular deformation area, the composite material circular deformation area can gradually unfold; when reaching a fully unfolded state, the composite material movable end can be fixed through hinging with the space camera, and the fully unfolded state can be kept to realize the dustproof function; when the optical camera needs to work, the hinging constraint of the composite material movable end is removed, and the composite material circular deformation area is rapidly restored to the initial state of "picture shaft shape" by using the strain energy stored in the composite material circular deformation area. The space camera is in a cylindrical shape, the composite material fixed end and the composite material movable end are located at one end face of the space camera, and the composite material fixed end and the composite material movable end are respectively located at two sides opposite in the radial direction of the space camera.

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