Protection device suitable for reliable fixation and rapid separation in extravehicular environment
By combining a protective shell, limiting springs, and anti-drift hook-and-loop fasteners, the problem of reliable fixation and rapid separation of protective devices in the extravehicular environment is solved, reducing the operational difficulty for astronauts and improving safety.
Patent Information
- Application Number
- CN202422998068.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-04
AI Technical Summary
Existing technologies make it difficult to reliably fix and quickly separate protective devices in a weightless environment outside the cabin, increasing the operational difficulty and safety risks for astronauts.
The design employs a combination of a protective shell, limiting springs, and anti-drift hook-and-loop fasteners. By matching the five-sided structure of the protective shell and the deformation elasticity of the limiting springs with the cylindrical features of the extravehicular equipment, the limiting function is achieved, and the position design of the anti-drift hook-and-loop fasteners enables rapid separation.
It enables astronauts to easily retrieve, place, and secure protective devices in the extravehicular environment, reducing operational difficulty and improving safety and reliability.
Smart Images
Figure CN223658427U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to spacecraft man-machine ergonomics maintenance technical field. BACKGROUND
[0002] With the development of China's space technology, the space operation tasks of the extravehicular environment participated by astronauts will increase day by day.
[0003] In view of the increase of the space station extravehicular equipment operation task, the components of the extravehicular equipment need to be operated to provide a protection device, which should have the functions of convenient operation, reliable fixation and rapid separation, and convenient astronauts in orbit to carry out the taking and fixing operation of the protection device.
[0004] In view of the characteristics of the extravehicular weightlessness environment, the astronauts need to solve the technical problems of convenient taking and fixing of the protection device in the state of wearing extravehicular spacesuit, reliable fixation and rapid separation of the protection device.
[0005] In the extravehicular environment drilling operation, due to the small friction of the drill bit and the safety requirement of the astronauts, only low speed (2 revolutions per minute) rotation output mode can be adopted. In the low speed mode, the drilling tool used by the astronauts needs to take the friction enhancement measures in the weightlessness environment and the sharp blade measures of the drill bit, and therefore a special safety protection shell needs to be designed to ensure the safety measures of the astronauts. UTILITY MODEL CONTENT
[0006] The technical problem solved by the utility model is to provide a protection device suitable for reliable fixation and rapid separation in extravehicular environment, to protect the astronauts to conveniently take and fix the protection device in the state of wearing extravehicular spacesuit, realize reliable fixation and rapid separation operation, and solve the technical problems of the astronauts to conveniently take and fix the protection device in the state of wearing extravehicular spacesuit in the extravehicular weightlessness environment. Through reducing the difficulty of extravehicular operation and improving the safety of astronauts, the utility model has the advantages of convenient operation, reliable fixation and rapid separation.
[0007] The technical solution of the utility model is a protection device suitable for reliable fixation and rapid separation in extravehicular environment, which comprises a protection shell, a limiting spring sheet and an anti-drifting sticky buckle.
[0008] The protection shell is a five-surface structure, the opening end surface is the direction of putting into the extravehicular equipment, the anti-drifting sticky buckle is fixed on the inner side of the protection shell facing the opening direction, the top surface is a U-shaped structure, the limiting spring sheet is installed on the inner side of the U-shaped structure, the limiting function is realized through the deformation elastic force of the limiting spring sheet and the cylindrical feature of the extravehicular equipment to constrain the freedom in the front and back directions; the guide limiting grooves are arranged on the two side surfaces of the protection shell, which are used to cooperate with the extravehicular equipment to constrain the freedom in the up and down and left and right directions.
[0009] Preferably, the U-shaped structure of the top surface of the protective shell comprises an open U-shaped bottom surface and a groove around the bottom surface for placing the limiting spring leaf, the groove bottom is a plane, the plane ends are semicircular grooves, the groove sides are perpendicular to the groove bottom, and the U-shaped front end and the groove side front end are connected by a rounded corner to form an insertion guide end of the top surface.
[0010] Preferably, the limiting spring leaf body is in a U-shaped structure placed on the bottom surface, the U-shaped bottom surface of the limiting spring leaf is a plane for connecting with the groove bottom, the limiting spring leaf bottom surface two sides outwardly protrude as a spring leaf deformation area, a semicircle is provided on the two arms of the U-shaped structure as a limiting area, and the U-shaped open end is outwardly inclined as a guide area.
[0011] Preferably, the limiting size between the two arms of the U-shaped structure is matched with the diameter of the limiting object, the limiting size is controlled within 12-30mm, the radius of the spring leaf deformation area is controlled within 2-5mm, the radius of the limiting area is controlled within 1-2.5mm, and the outward inclination angle of the guide area is controlled within 130°-160°, facilitating the entry of the limiting object.
[0012] Preferably, the protective shell outwardly extends at the place where the anti-drifting adhesive buckle is located, and the extension configuration is a configuration convenient for astronauts to pinch according to ergonomics.
[0013] Preferably, a groove is arranged in the protective shell, and the groove part serves as an anti-drifting adhesive buckle area, thereby effectively protecting the anti-drifting adhesive buckle from damage by the atomic oxygen environment outside the cabin.
[0014] Preferably, the limiting spring leaf is formed by a 0.5mm beryllium bronze strip, and has elasticity and forming rigidity.
[0015] Preferably, the protective shell is made of an aluminum alloy material, and the performance of the aluminum alloy material meets the requirements of effectively resisting atomic oxygen, high and low temperature changes of-100℃-100℃, and impacts of small fragments in the extravehicular environment.
[0016] The beneficial effects of the utility model compared with the prior art are as follows:
[0017] The utility model is a protective device suitable for reliable fixing and rapid separation in an extravehicular environment, which is an important guarantee for astronauts to conveniently take and place and fix the protective device in a state of wearing an extravehicular spacesuit, and realizes reliable fixing and rapid separation.
[0018] The utility model discloses a special limiting constraint structure form is effective to realize the connection of protection device and extravehicular equipment, and the spring leaf limiting matching provides the constraint force to prevent the protection device from floating away, and can realize the separation of protection device after overcoming the spring leaf deformation constraint force.
[0019] The utility model discloses a special anti -floating sticky buckle position design, and the astronaut is in orbit according to the operation demand fast realization operation force separation force adjustment. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is a kind of protection device schematic diagram suitable for reliable fixing and quick separation in extravehicular environment;
[0021] Figure 2 It is protection shell structure schematic diagram;(a) is perspective view, (b) is lateral section view, (c) is front view;
[0022] Figure 3 It is limiting spring leaf structure schematic diagram;
[0023] Figure 4 It is limiting spring leaf structure size diagram;
[0024] Figure 5 It is anti -floating sticky buckle position schematic diagram;
[0025] Figure 6 It is protection device installation direction schematic diagram
[0026] Figure 7 It is protection device installation completion schematic diagram; DETAILED DESCRIPTION
[0027] The utility model is further described below in combination with examples.
[0028] The utility model provides a kind of protection device suitable for reliable fixing and quick separation in extravehicular environment, the utility model is further described in detail below in combination with drawings and specific embodiments.The structure form is composed of protection shell, limiting spring leaf and anti -floating sticky buckle three parts ( Figure 1 )。
[0029] 1) protection shell
[0030] The protection shell adopts a semi-enclosed configuration to effectively constrain the protected object inside the protection shell, and is mainly used for protecting the exposure of the extravehicular device protection area in the extravehicular environment. The protection shell is provided in a 5-face closed configuration, the opening end face is in the direction of placing the extravehicular device, the opening inner side is provided with an anti-drifting adhesive buckle mounting area, the top face is provided with a limiting spring sheet to facilitate observation during the installation process of astronauts, and the two side faces are provided with guide limiting grooves, the limiting grooves are designed to be 23 mm high and 40 mm long, the limiting grooves are designed in a personalized manner with the outer shape of the extravehicular device, and can effectively constrain the two degrees of freedom of the protection shell in the up-down and left-right directions. Figure 2 )。
[0031] The protection shell is made of aluminum alloy material, which can effectively resist atomic oxygen, -100℃-100℃ high and low temperature changes and micro-particle impact in the extravehicular environment.
[0032] 2) Limiting spring sheet
[0033] The limiting spring sheet is fixed outside the extravehicular device to facilitate the astronauts to conveniently take, place or fix the protection shell. The outer diameter of the extravehicular device is 18 mm, the outer shape of the limiting spring sheet is designed as a "U" shape, the "U" type limiting size is matched with the outer diameter of the extravehicular device and is designed as 18 mm, the "U" type opening area is designed as an outward inclination angle of 150°, which facilitates the guiding insertion of the protection shell into the extravehicular device. The two sides of the "U" type are each designed as a semicircular protrusion with a radius of 1.6, the "U" type opening size is consistent with the outer shape size of the extravehicular device, the semicircular protrusion surrounds the fixed point of the extravehicular device in a ring shape, and effectively constrains the freedom degree of the protection shell in the front-back direction. The root of the limiting spring sheet is designed with a semicircular arc with a radius of 3, and when the limiting area is stressed, the spring sheet can release the stress borne by the limiting area through deformation; the root of the limiting spring sheet is designed with a mounting hole, which is mounted on the protection shell Figure 3 ) and is made of 0.5 mm beryllium bronze strip, which has elasticity and forming rigidity.
[0034] 3) Anti-drifting adhesive buckle
[0035] The anti-drifting adhesive buckle is fixed in the mounting area on the inner side of the opening of the protection shell, and the same area of the extravehicular device is also fixed with the anti-drifting adhesive buckle Figure 5 . The astronauts can adjust the contact area of the anti-drifting adhesive buckle according to the operation demand in orbit to realize the adjustment of the operation force separation force. A groove with a width of 45 mm and a height of 23 mm is arranged on the side wall of the protection shell, and the anti-drifting adhesive buckle area is designed in the groove of the protection shell, which can effectively protect the damage of the anti-drifting adhesive buckle caused by the extravehicular atomic oxygen environment.
[0036] 4) Operation process
[0037] A protection device suitable for reliable fixation and rapid separation in the extravehicular environment.
[0038] During installation, the astronauts put the protection device into the extravehicular equipment protection position by pinching the protection device shell, the protection device is guided and limited by the shape of the extravehicular equipment, and the protection device is connected with the extravehicular equipment through the limiting spring sheet. Figure 6 )( Figure 7 )
[0039] During removal, the astronauts apply pulling force to the outside by pinching the protection device shell, the adhesion between the anti-drifting adhesion buckle of the protection device and the anti-drifting adhesion buckle on the surface of the extravehicular equipment is separated, the protection device moves to the outside and the limiting spring sheet is deformed, and finally the protection device is separated from the extravehicular equipment.
[0040] The utility model discloses although has disclosed above like this with preferable embodiment, but it is not used to limit the utility model, any person skilled in the art can utilize the method and technical content disclosed above to make possible change and modification to the utility model technical scheme without departing from the spirit and scope of the utility model, therefore, all the simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the utility model, all belong to the protection scope of the utility model technical scheme.
Claims
1. A protection device suitable for reliable fixing and quick separation in extravehicular environment, characterized in that The protection shell, the limiting spring sheet and the anti-drifting adhesive buckle are included. The protection shell is a five-surface structure, the open end surface is in the direction of putting the extravehicular equipment, the anti-drifting adhesive buckle is fixed on the inner side of the protection shell facing the opening direction, the top surface is a U-shaped structure, the U-shaped structure is internally provided with the limiting spring sheet, the deformation elastic force of the limiting spring sheet realizes the limiting function with the cylindrical feature of the extravehicular equipment, and the front and back directions are constrained.
2. The protection device for reliable fixing and quick separation in extravehicular environment according to claim 1, characterized in that: The U-shaped structure of the top surface of the protection shell includes an open U-shaped bottom surface and grooves arranged around the bottom surface for placing the limiting spring sheet, the groove bottom is a plane, the two ends of the plane are semicircular grooves, the groove sides are perpendicular to the groove bottom, and the U-shaped front end of the bottom surface is connected with the front end of the groove side through a round corner to form an insertion guide end of the top surface.
3. The protection device for reliable fixing and quick separation in extravehicular environment according to claim 2, characterized in that: The main body of the limiting spring sheet is a U-shaped structure placed on the bottom surface, the U-shaped bottom surface of the limiting spring sheet is a plane for realizing the connection with the groove bottom, the two sides of the bottom surface of the limiting spring sheet outwardly protrude semicircular structures as spring sheet deformation zones, the two arms of the U-shaped structure are internally provided with semicircular protrusions as limiting zones, and the open end of the U-shaped structure outwardly inclines as a guide zone.
4. The protection device for reliable fixing and quick separation in extravehicular environment according to claim 3, characterized in that: The limiting size between the two arms of the U-shaped structure should be matched with the diameter of the limiting object, and the limiting size is controlled to be 12-30 mm; the arc radius of the spring sheet deformation zone is controlled to be 2-5 mm; the arc radius of the limiting zone is controlled to be 1-2.5 mm; the outward inclination angle of the guide zone is controlled to be in the range of 130°-160°, so that the limiting object is conveniently put in.
5. The protection device for reliable fixing and quick separation in the extravehicular environment according to claim 1, characterized in that: The protection shell outwardly extends at the position of the anti-drifting adhesive buckle, and the extension configuration is a configuration convenient for astronauts to pinch according to the ergonomics.
6. The protection device for reliable fixing and quick separation in the extravehicular environment according to claim 5, characterized in that: A groove is arranged in the protection shell, and the groove part is used as an anti-drifting adhesive buckle area, so that the damage of the extravehicular atomic oxygen environment to the anti-drifting adhesive buckle is effectively prevented.
7. The protection device for reliable fixing and quick separation in extravehicular environment according to claim 1, characterized in that: The limiting spring sheet is formed by a 0.5 mm beryllium bronze strip, and has elasticity and forming rigidity.
8. The protection device for reliable fixing and quick separation in extravehicular environment according to claim 1, characterized in that: The protection shell is made of an aluminum alloy material, and its performance meets the requirements of effectively resisting atomic oxygen, high and low temperature changes of-100℃-100℃ and impacts of micro debris in the extravehicular environment.