CN111075278A

CN111075278A - Locking device of experiment box on material cabin outer exposure device and experiment box

Info

Publication number: CN111075278A
Application number: CN201911415622.XA
Authority: CN
Inventors: 王乐天; 张伟贵; 张聚乐; 王珂; 乔志宏; 王志忠; 管洪飞
Original assignee: Technology and Engineering Center for Space Utilization of CAS
Current assignee: Technology and Engineering Center for Space Utilization of CAS
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-04-28
Anticipated expiration: 2039-12-31
Also published as: CN111075278B

Abstract

The invention relates to a locking device of an experimental box on a material cabin outer exposure device and the experimental box, wherein the experimental box comprises a box door and a box body, and comprises a driving mechanism, a sliding plate and a locking seat; the sliding plate is connected with the vertical side wall of the box body in a sliding mode, a lock pin is fixedly mounted on the sliding plate, and the lock pin is inserted into the first locking groove; the lock seat is arranged on the vertical side wall of the box door corresponding to the first locking groove; after the lock seat is inserted into the first locking groove, the driving mechanism drives the sliding plate to move from the first position to the second position, so that the lock pin is clamped with the lock seat, the lock seat cannot be separated from the first locking groove, and the locking of the box door and the box body is realized.

Description

Locking device of experiment box on material cabin outer exposure device and experiment box

Technical Field

The invention relates to the technical field of space, in particular to a locking device of a test box on a material cabin outer exposure device and the test box.

Background

In space science research, the use of various materials, particularly new materials, is not isolated. The material space environment exposure experiment aims at researching the service behavior of the material under the action of space special environment effect.

1. Influence of space environment on mechanism reliability

The differences in the operation of space machines with respect to machines operating on the ground are mainly due to the space environment, which differs from the ground environment in terms of space dynamics.

1.1 influence of the spatial Environment

(1) Influence of microgravity

Because the existing spacecraft is usually installed and adjusted on the ground, namely under the action of gravity, when the spacecraft enters the space, the environment of the spacecraft is a microgravity environment, and the gravity in the installation and adjustment process can be released and deformed. The friction between the parts is reduced, the system is in a free state, and the interference from the outside is more prominent. Microgravity has less impact on typical mechanisms but more impact on some release mechanisms, such as the hold-down mechanism in a solar array.

(2) Influence of pressure difference

The influence of the pressure difference is usually 1X 10-²Pa～1×10-⁵Pa, and when a sealing structure exists in the spacecraft, the internal and external difference of the sealing structure is increased, so that the structure is deformed or damaged.

(3) Influence of vacuum outgassing

Adsorbed or absorbed gases exist on the surface of the material and are dissolved in the material, and the gases are released under the vacuum degree higher than 1 x 10 < -2 > Pa, namely vacuum gas release. The released gases re-condense on the cryogenic components, contaminating the optical lens, the sensor and the optically selective thermal control coating, resulting in reduced optical performance, increased solar absorption and increased temperature.

(4) Influence of radiation heat transfer

In a vacuum environment, radiative heat transfer is the primary form of heat transfer from the spacecraft to the environment. Thus, the radiative properties of the surface material have a significant impact on the thermal control function. When each system and mechanism of the spacecraft cannot work in a reasonable temperature range, the structural parts can generate stress, deformation and even fracture due to the change of the environmental temperature, so that the mechanism of the spacecraft is damaged.

(5) Effects of adhesion and Cold welding

Adhesion and cold welding typically occur at a pressure of 1X 10^-7And Pa or above. On the ground, the solid surface always adsorbs organic and other films, which are called boundary lubrication lubricants, which function to reduce the friction coefficient. In a vacuum environment, a solid surface film, when partially or completely removed, forms a clean material surface between the parts in contact, and a different degree of adhesion, called sticking, occurs. If the oxide film is removed, the surface can reach atom cleanness, and can be further integrally adhered under the action of certain pressure and temperature, namely cold welding is formed.

The main method for preventing cold welding is to select mating materials which are not easy to generate cold welding, adopt solid lubrication, grease lubrication or liquid lubricant, coat material film layers which are not easy to generate cold welding and the like.

(6) Microstellar and space debris

The space environment has micro-stars and various space fragments generated by human space activities, and because the micro-stars and the space fragments have higher speed and kinetic energy, even a small fragment collides with a spacecraft, the equipment is likely to be out of order. Therefore, spacecraft should provide enhanced protection against micrometeors and space debris.

(7) Environmental impact of solar radiation

Mechanical forces are generated by mechanical structural parts due to solar radiation, and particularly, the thermal bending effect caused by uneven heating is the largest, so that the structure generates low-frequency vibration. In addition, the change of temperature has a great influence on the selection of the lubricant in the mechanism, and the lubricant with good temperature change resistance needs to be selected.

(8) Cold and black environmental impact

The cold and black environment refers to an environment in which the radiation of the sun and the spacecraft is not considered, and the heat radiation of the spacecraft is completely absorbed by the space and is not reflected. The cold and black environment easily causes the stretching performance of the retractable mechanism on the spacecraft, influences the performance of certain organic materials, causes the aging and embrittlement of the materials and the like.

2. Basic method for improving reliability of mechanism

(1) Simplified design

The more complex the structure, the more likely faults occur, so for the design of the mechanism, the complex and meaningless design should be avoided, and the structure is simple and efficient as much as possible.

(2) Redundancy design

The redundancy design improves the reliability of the system by adopting a mode of repeatedly allocating resources, and key functional components adopt a redundancy design method to improve the reliability. For example, in the focusing mechanism, the reliability of the focusing mechanism can be improved by using a structural design mode of double motors and double encoders; the redundancy design of double igniters is adopted in the initiating explosive mechanism to improve the reliability. The redundancy design is a method for improving the reliability of the system at the cost of increasing the quality, volume, cost and power consumption of the system, and the method is used comprehensively, and comprehensively considers, analyzes and balances advantages and disadvantages when in specific use.

(3) Lubrication design

The lubrication design needs to fully consider various environments experienced by the mechanism, such as ground transportation, rocket launching, on-orbit work and the like, comprehensively consider the performance of part materials, and select a proper lubrication mode to ensure effective lubrication of the mechanism and ensure the reliability of the mechanism.

(4) Margin design

Margin design, that is, safety margin design, is designed to leave margin in the aspects of precision, strength and the like of a designed product. Because the performance, the processing precision, the assembly precision, the personnel operation and the like of the material have certain uncertainty and the aerospace cost is higher, the product is subjected to margin design, certain hidden risks can be avoided, and the reliability of the system is improved.

(5) Thermal design

The thermal design is based on the thermal environment in the life cycle of the product, and adopts various methods to reduce the heat exchange between the product and the outside and reduce the influence of thermal stress on the product. The thermal design mainly comprises two aspects, namely, the structure is subjected to active thermal control or passive thermal control, the temperature of the environment where the product is located is controlled, and thermal stress generated by the surface with overlarge temperature change is avoided; and secondly, reasonable design is adopted, and the matching of materials and the clearance of a kinematic pair are controlled to reduce the influence of thermal stress on the product.

(6) Electrostatic protection design

For mechanisms with electrostatic protection requirements, such as mechanisms containing electronic components and initiating explosive devices, electrostatic protection design is required, and the components are damaged or the initiating explosive devices are mistakenly detonated by stray current and mistakenly operated.

(7) Seal design

Some mechanisms on the spacecraft need to be designed in a sealing mode, such as liquid lubricant sealing of a high-speed bearing, a pneumatic mechanism or a hydraulic mechanism and the like. These mechanisms, once leaking, can have considerable consequences. The complexity of the space environment can cause the aging of the sealing material and the reduction of the sealing performance, so the sealing design is also an important content of the reliability design of the spacecraft.

(8) Reliability test

Because the aerospace cost is huge, a reliability test needs to be carried out on key functional parts, the reliability of the key functional parts is verified through the test, and meanwhile, the design work can be guided according to the test result.

In the material extravehicular exposure platform, the material extravehicular exposure experimental box provides an installation space and an exposure environment for various materials, and provides a closed protection environment for the materials when necessary, so that the material exposure experimental box is in an openable and closable configuration. During the ascending and descending processes of the material exposure experiment box, the material exposure experiment box can bear the vibration environment during launching.

Therefore, how to realize the locking of the door of the material exposure laboratory box is an important problem to be solved urgently.

Disclosure of Invention

The invention aims to solve the technical problem of the prior art, and provides a locking device of a test box on a material extravehicular exposure device and the test box, so as to solve at least one of the technical problems.

On one hand, the technical scheme for solving the technical problems is as follows: a locking device of an experimental box on a material cabin outer exposure device comprises a box door and a box body, wherein the locking device comprises a driving mechanism, a sliding plate and a lock seat, and a first locking groove is formed in the vertical side wall of the box body; the sliding plate is connected with the vertical side wall of the box body in a sliding mode, a lock pin is fixedly mounted on the sliding plate, and the lock pin is inserted into the first locking groove; the lock seat is arranged on the vertical side wall of the box door corresponding to the first locking groove; when the box door is closed, the lock seat is inserted into the first locking groove, and the driving mechanism drives the sliding plate to move from the first position to the second position, so that the lock pin is clamped with the lock seat.

The invention has the beneficial effects that: when the sliding plate is at the first position, the lock seat can be inserted into the first locking groove without obstacles; after the lock seat is inserted into the first locking groove, the driving mechanism drives the sliding plate to move from the first position to the second position, so that the lock pin is clamped with the lock seat, the lock seat cannot be separated from the first locking groove, and the locking of the box door and the box body is realized.

On the basis of the technical scheme, the invention can be further improved as follows.

Further, the driving mechanism comprises a power device, a transmission device and a pin shaft arm, the power device drives the transmission device to rotate, the transmission device is connected with one end of the pin shaft arm through a spline, and the other end of the pin shaft arm is connected with the sliding plate in a rotating mode.

The beneficial effect of adopting the further scheme is that: the spline can transmit motion and power; the power of the driving mechanism is converted into the power of the sliding plate through the transmission device, and the sliding plate is driven.

Furthermore, the transmission device comprises a locking turntable and a locking gear disc, and the power device drives the locking turntable to rotate; the gear section is arranged on the outer peripheral side of the locking turntable and is meshed with the locking gear disc when the locking turntable rotates to a preset position; the output shaft of the locking gear plate is connected with one end of the pin shaft arm through a spline.

The beneficial effect of adopting the further scheme is that: when the gear section is meshed with the locking gear disc, the locking gear disc rotates under the acting force of the gear section, and then the pin shaft arm is driven to rotate, so that the other end of the pin shaft arm drives the sliding plate to move.

Furthermore, the transmission device also comprises a steel wire rope and a winding wheel, and the winding wheel is coaxially and fixedly connected with the locking turntable; the steel wire rope is spirally wound on the winding wheel; the driving device drives the reel to rotate by pulling the steel wire rope, and then drives the locking turntable to rotate.

The beneficial effect of adopting the further scheme is that: the driving steel wire rope is a power transmission device and can transmit the motion and the power from the driving device to the locking turntable; the steel wire rope has the characteristic that the layout can be changed along with the main structure, the occupied space is small, and the adjusting capacity is strong; the thin steel wire rope has extremely high strength and small occupied space; and the deformation of the steel wire rope is small along with the change of temperature difference, so that the transmission device is prevented from being blocked at high and low temperatures.

Furthermore, a connecting plate is fixedly connected to the sliding plate, and the connecting plate is rotatably connected with the other end of the pin shaft arm.

The beneficial effect of adopting the further scheme is that: through setting up the connecting plate, the position setting of the sliding plate of being convenient for wholly realizes rational layout.

Further, the connecting plate further comprises a rotating shaft, a round hole is formed in the connecting plate, a long-strip-shaped hole is formed in the other end of the pin shaft arm, one end of the rotating shaft is fixed in the round hole, the other end of the rotating shaft extends into the long-strip-shaped hole and is in rotating connection with the long-strip-shaped hole, and the rotating shaft can slide along the length direction of the long-strip-.

The beneficial effect of adopting the further scheme is that: the other end of the pin shaft arm does circular motion, the connecting plate does linear motion, and the other end of the pin shaft arm is provided with the strip-shaped hole, so that space is provided for motion, and the structure is feasible.

Furthermore, a sliding groove is formed in the sliding plate, a sliding shaft is fixed on the vertical side wall of the box body, and the sliding shaft penetrates through the sliding groove and is in sliding connection with the sliding groove.

The beneficial effect of adopting the further scheme is that: the sliding plate is guided and positioned by the sliding groove and the sliding shaft.

Furthermore, a second locking groove is formed in the box door corresponding to the first locking groove, and the lock seat is fixed to one side of the opening end of the second locking groove and surrounds a space for movement of the lock pin with the side wall of the second locking groove.

The beneficial effect of adopting the further scheme is that: the lockpin removes to the back with lock seat joint, and the sliding plate still laminates in the outside of experimental box, and what utilize is the space that the experimental box occupy, does not additionally occupy exterior space, improves space utilization.

Furthermore, one side of the lock seat, which is far away from the box body, is a slope surface, and the upper part of the slope surface is inwards sunken to form an arc-shaped assembly opening; the lockpin is cylindrical, and when the sliding plate removed to the second position, lockpin and arc assembly opening adaptation joint.

The beneficial effect of adopting the further scheme is that: the slope surface is a reinforcement slope surface, so that the lock pin can move conveniently after the box door of the experiment box moves in place; thereby locking the door.

In another aspect, the present invention provides a test kit comprising a locking device for a test kit on a material extravehicular exposure apparatus as described above.

The beneficial effect of this scheme of adoption is: this scheme has above-mentioned a material cabin exposes device upper experiment box's whole beneficial effect outside the device, just need not be repeated here.

Drawings

FIG. 1 is an exploded view of the locking device of the present invention mounted on a laboratory box;

FIG. 2 is a schematic view of the locking device of the present invention installed on a laboratory box;

FIG. 3 is a schematic cross-sectional view of the transmission of the present invention;

FIG. 4 is a schematic view of a reel and locking dial in the present invention;

FIG. 5 is a partial schematic view of the transmission of the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

110. the box door comprises a box door body, 111, a second locking groove, 120, a box body, 121, a first locking groove, 122, an assembly groove, 123, a cover plate, 124, a limiting hole, 220, a transmission device, 221, a locking turntable, 222, a gear section, 223, a locking gear disc, 224, a reel, 225A, a locking transmission box base, 225B, a locking transmission box shell, 226, an upper rope knot groove, 227, a lower rope knot groove, 228, a spring collision bead, 230, a pin shaft arm, 231, a strip-shaped hole, 300, a sliding plate, 310, a locking pin, 320, a connecting plate, 330, a sliding groove, 400, a lock base, 410 and an arc-shaped assembly opening.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

Example 1

As shown in fig. 1 to 5, a locking device of a laboratory box on a material extravehicular exposure device, the laboratory box comprises a box door 110 and a box body 120, the locking device comprises a driving mechanism, a sliding plate 300 and a lock seat 400, and a first locking groove 121 is formed on a vertical side wall of the box body 120; the sliding plate 300 is slidably connected with the vertical side wall of the box body 120, and a locking pin 310 is fixedly installed on the sliding plate 300, and the locking pin 310 is inserted into the first locking groove 121; the latch holder 400 is installed on the vertical sidewall of the door 110 corresponding to the first latching recess 121; after the lock base 400 is inserted into the first locking groove 121, the driving mechanism drives the sliding plate 300 to move from the first position to the second position, so that the locking pin 310 is engaged with the lock base 400.

Preferably, in the present embodiment, the sliding plate 300 is slidably installed at the outer side of the vertical sidewall of the box body 120, since the exposed material sample is installed inside the experimental box through the sample tray, the sample tray is detachably installed inside the door 110 and the open end of the box body 120, and the sliding plate 300 is installed at the outer side of the box body 120 to prevent the moving sliding plate 300 from affecting the sample tray or the sample inside the experimental box. When the sliding plate 300 is at the first position, the lock base 400 can be inserted into the first locking groove 121 without hindrance; after the lock base 400 is inserted into the first locking groove 121, the driving mechanism drives the sliding plate 300 to move from the first position to the second position, so that the lock pin 310 is clamped with the lock base 400, the lock base 400 cannot be separated from the first locking groove 121, and the locking of the box door 110 and the box body 120 is realized.

When it is required to open the door, the driving mechanism drives the sliding plate 300 to move from the second position to the first position, so that the lock pin 310 is separated from the lock base 400, the lock base 400 can be separated from the first locking groove 121, and the door can be opened.

Specifically, the door 110 is hinged to the box body 120 through a hinge, and the hinge and the locking device are respectively located at two sides of the experimental box. The experimental box is installed on the on-orbit platform through the mounting bracket, the experimental box is detachably connected with the mounting bracket, and the mounting bracket is fixedly connected with the on-orbit platform.

As shown in fig. 1 to 5, a locking device for an experimental box on a material extravehicular exposure device, a driving mechanism comprises a power device, a transmission device 220 and a pin shaft arm 230, the power device drives the transmission device 220 to rotate, the transmission device 220 is in splined connection with one end of the pin shaft arm 230, and the other end of the pin shaft arm 230 is in rotatable connection with a sliding plate 300.

Preferably, the spline is an involute spline, and the involute spline can transmit motion and power; the power of the driving mechanism is converted into the power of the sliding plate 300 through the transmission 220, thereby realizing the driving of the sliding plate 300.

As shown in fig. 1-5, a locking device for a test box on a material extravehicular exposure device, a transmission device 220 comprises a locking turntable 221 and a locking gear plate 223, and a power device drives the locking turntable 221 to rotate; a gear section 222 is arranged on the outer peripheral side of the locking turntable 221, and when the locking turntable 221 rotates to a preset position, the gear section 222 is meshed with the locking gear disc 223; the output shaft of the locking gear plate 223 is splined to one end of the pin arm 230.

When the gear segment 222 is engaged with the locking gear disc 223, the locking gear disc 223 rotates under the action of the gear segment 222, and further drives the pin shaft arm 230 to rotate, so that the other end of the pin shaft arm 230 drives the sliding plate 300 to move.

In some implementations, the outer circumferential sides of lock dial 221 may all be gears.

Preferably, in this embodiment, only one segment of the outer circumference of the locking dial 221 is a gear, so that the rotation time and position of the pin arm 230 can be controlled. The applicability is improved. When a plurality of experiment boxes are provided, the locking time of the experiment boxes can be controlled by setting the relative positions of the gear section 222 and the locking gear disc 223 on different experiment boxes to be different.

As shown in FIGS. 1-5, the transmission 220 of the locking device of the experimental box on the material cabin outer exposure device further comprises a steel wire rope and a winding wheel 224, wherein the winding wheel 224 is coaxially and fixedly connected with a locking turntable 221; the wire rope is spirally wound on the reel 224; the driving device drives the reel 224 to rotate by pulling the wire rope, and further drives the locking dial 221 to rotate.

A driving wire rope, which is a power transmission device, for transmitting the motion and power from the driving device to the locking turntable 221; the steel wire rope has the characteristic that the layout can be changed along with the main structure, the occupied space is small, and the adjusting capacity is strong; the thin steel wire rope has extremely high strength and small occupied space; and the deformation of the steel wire rope is small along with the change of temperature difference, so that the transmission device is prevented from being blocked at high and low temperatures.

As shown in fig. 4 and 5, the reel 224 includes at least two layers of winding grooves, the side walls of the two outer layers of winding grooves are respectively formed with an upper knot groove 226 and a lower knot groove 227 in a recessed manner, the steel wire rope is spirally wound on the winding grooves, and two knots are arranged on the steel wire rope, namely an upper knot and a lower knot, the upper knot is clamped in the upper knot groove 226, the lower knot is clamped in the lower knot groove 227 to play a role in positioning, when the power device pulls the steel wire rope, the upper knot or the lower knot exerts an acting force on the reel 224 to drive the reel 224 to rotate.

As shown in FIGS. 1 to 5, the locking device for the experimental box of the material extravehicular exposure apparatus further comprises a connecting plate 320, wherein the sliding plate 300 is fixedly connected with the connecting plate 320, and the connecting plate 320 is rotatably connected with the other end of the pin shaft arm 230.

Through setting up connecting plate 320, the position setting of sliding plate 300 is convenient for, wholly realizes reasonable layout.

Specifically, as shown in fig. 1 and 2, a portion of the bottom wall of the box 120 near the vertical side wall is recessed to form an assembly groove 122, and the pin arm 230 is located in the assembly groove 122; the cover plate 123 and the actuator 220 are omitted from fig. 2.

The sliding plate assembly further comprises a cover plate 123, wherein the cover plate 123 is installed at one side of the open end of the assembly groove 122 and forms an opening with the assembly groove 122, the opening faces the sliding plate 300, one end of the connecting plate 320 is located in the assembly groove 122, and the other end of the connecting plate passes through the opening and is fixedly connected with the sliding plate 300. The sliding plate 300 covers the outside of the opening. The structural design reasonably utilizes space.

As shown in fig. 1 and 3, the locking device further includes a locking transmission box base 225A and a locking transmission box housing 225B, the transmission box base and the locking transmission box housing 225B surround to form a transmission cavity for mounting the transmission device 220, the locking transmission box base 225A is fixedly mounted on the outer side of the bottom wall of the box body 120 or on the mounting bracket, and an output shaft of the locking gear plate 223 penetrates through the locking transmission box base 225A to be connected with one end of the pin shaft arm 230 through a spline. The locking transmission box shell 225B is provided with a rope passing hole for a steel wire rope to pass through.

Specifically, the two ends of the steel wire rope respectively penetrate out of the two through holes, the steel wire rope is pulled forward and backward through the power device, forward and backward rotation of the reel 224 is achieved, and finally reciprocating motion of the sliding plate at the first position and the second position is achieved.

Preferably, a plurality of positioning grooves are formed in the locking gear disc 223, the spring collision bead 228 is mounted on the locking transmission box shell 225B, when the locking gear disc 223 is not meshed with the gear section 222, the spring collision bead 228 is clamped in the positioning grooves, the locking gear disc 223 cannot rotate, the positioning of the pin shaft arm 230 is achieved, and the positioning of the sliding plate 300 is achieved.

And facilitates setting the initial relative position of the gear segment 222 and the locking gear plate 223.

As shown in fig. 1 to 5, the locking device of the upper experimental box of the material extravehicular exposure device further comprises a rotating shaft, a round hole is formed in the connecting plate 320, a strip-shaped hole 231 is formed in the other end of the pin shaft arm 230, one end of the rotating shaft is fixed in the round hole, and the other end of the rotating shaft extends into the strip-shaped hole 231 and is rotatably connected with the same and can slide along the length direction of the strip-shaped hole 231.

Specifically, a long-strip-shaped limiting hole 124 is formed in the assembling groove 122, one end of the rotating shaft is inserted into the limiting hole 124, or the other end of the rotating shaft penetrates through the long-strip-shaped hole 231 and then is inserted into the limiting hole 124, so that the up-and-down moving position of the rotating shaft is further limited. The other end of the pin shaft arm 230 makes a circular motion, the connecting plate 320 makes a linear motion, and a long hole 231 is formed in the other end of the pin shaft arm 230, so that a space is provided for movement, and the structure is feasible.

As shown in fig. 1 to 5, in the locking device of the experimental box on the material cabin outer exposure device, a sliding chute 330 is formed on a sliding plate 300, a sliding shaft is fixed on a vertical side wall of a box body 120, and the sliding shaft is inserted into the sliding chute 330 and is slidably connected with the sliding chute 330.

The movement of the sliding plate 300 is guided and positioned by the sliding grooves 330 and the sliding shaft.

The present invention provides a redundant design by having various limit structures to secure the positions of the first and second positions of the sliding plate 300.

As shown in fig. 1 to 5, in the locking device of the experimental box on the material cabin outer exposure device, a second locking groove 111 is formed on the box door 110 corresponding to the first locking groove 121, and a lock seat 400 is fixed on one side of an open end of the second locking groove 111 and encloses a space for movement of a lock pin 310 with a side wall of the second locking groove 111.

After the lock pin 310 is moved to be clamped with the lock seat 400, the sliding plate 300 still fits the outer side of the experimental box, the space occupied by the experimental box is utilized, no external space is additionally occupied, the space utilization rate is improved, and the space for performing the on-rail exposure experiment outside the space station cabin is limited.

Specifically, an opening for the locking pin 310 to pass through is formed between the lower end of the lock holder 400 and the lower sidewall of the second locking recess 111, and the lock holder 400 is inserted into the first locking recess 121 while passing over the locking pin 310, and at the same time, the locking pin 310 is inserted into the first locking recess 121.

As shown in FIGS. 1 to 5, in the locking device of the experimental box on the material cabin outer exposure device, one side of a lock seat 400 far away from a box body 120 is a slope, and the upper part of the slope is inwards sunken to form an arc-shaped assembly opening 410; the locking pin 310 is cylindrical, and when the sliding plate 300 moves to the second position, the locking pin 310 is fittingly engaged with the arc-shaped assembling hole 410.

The slope surface is a force-increasing slope surface, so that the lock pin 310 can move conveniently after the box door 110 of the experiment box moves in place; thereby locking the door 110. The arcuate mounting opening 410 provides a snap fit with the latch 310.

The working process of the embodiment is as follows: in the unlocked state, when the sliding plate 300 is in the first position, the lock housing 400 can be inserted into the first locking groove 121 without obstruction.

When the door is closed, after the lock base 400 is inserted into the first locking groove 121, the power device drives the reel 224 to rotate by pulling the steel wire rope, and further drives the locking turntable 221 to rotate, when the locking turntable 221 rotates to a preset position, the gear section 222 is engaged with the locking gear disc 223 to drive the locking gear disc 223 to rotate, the locking gear disc 223 drives one end of the pin shaft arm 230 to rotate, the other end of the pin shaft arm 230 rotates around one end of the pin shaft arm 230, and further drives the connecting plate 320 to move, so that the sliding plate 300 moves from the first position to the second position, the locking pin 310 is clamped with the arc-shaped assembling port 410 of the lock base 400, the lock base 400 cannot be separated from the first locking groove 121, and locking of the door 110 and the box body 120 is realized.

Example 2

As shown in fig. 1-3, a test kit includes a locking device of the test kit on a material extravehicular exposure apparatus described above.

The beneficial effect of this embodiment is: the present embodiment has all the advantages of the above locking device of the experimental box on the material extravehicular exposure device, and will not be described herein again.

In the description herein, reference to the terms "embodiment one," "embodiment two," "example," "specific example," or "some examples," etc., means that a particular method, apparatus, or feature described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, methods, apparatuses, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A locking device of a test box on a material cabin outer exposure device is characterized in that the locking device comprises a box door and a box body, and the locking device is characterized in that a first locking groove is formed in the vertical side wall of the box body; the sliding plate is connected with the vertical side wall of the box body in a sliding mode, a lock pin is fixedly installed on the sliding plate, and the lock pin is inserted into the first locking groove; the lock seat is arranged on the vertical side wall of the box door corresponding to the first locking groove; when the box door is closed, the lock seat is inserted into the first locking groove, and the driving mechanism drives the sliding plate to move from the first position to the second position, so that the lock pin is clamped with the lock seat.

2. The apparatus of claim 1, wherein the driving mechanism comprises a power unit, a transmission unit and a pin arm, the power unit drives the transmission unit to rotate, the transmission unit is connected with one end of the pin arm through a spline, and the other end of the pin arm is connected with the sliding plate in a rotating manner.

3. The locking device of the experimental box on the material extravehicular exposure device, according to claim 2, wherein the transmission device comprises a locking turntable and a locking gear plate, and the power device drives the locking turntable to rotate; a gear section is arranged on the outer peripheral side of the locking turntable, and when the locking turntable rotates to a preset position, the gear section is meshed with the locking gear disc; and an output shaft of the locking gear disc is connected with one end of the pin shaft arm through a spline.

4. The locking device of the experimental box on the material extravehicular exposure device, according to claim 3, characterized in that the transmission device further comprises a steel wire rope and a winding wheel, and the winding wheel is coaxially and fixedly connected with the locking turntable; the steel wire rope is spirally wound on the winding wheel; the driving device drives the reel to rotate by pulling the steel wire rope, and then drives the locking turntable to rotate.

5. The apparatus of claim 2, wherein the sliding plate is fixedly connected with a connecting plate, and the connecting plate is rotatably connected with the other end of the pin shaft arm.

6. The locking device of the experimental box on the material extravehicular exposure device, according to claim 5, further comprising a rotating shaft, wherein the connecting plate is provided with a circular hole, the other end of the pin shaft arm is provided with an elongated hole, one end of the rotating shaft is fixed in the circular hole, and the other end of the rotating shaft extends into the elongated hole and is rotatably connected with the elongated hole and can slide along the length direction of the elongated hole.

7. The locking device of the experimental box on the material extravehicular exposure device according to any one of claims 1 to 6, wherein the sliding plate is provided with a sliding groove, the vertical side wall of the box body is fixed with a sliding shaft, and the sliding shaft is inserted into the sliding groove and is slidably connected with the sliding groove.

8. The locking device of the experimental box on the material extravehicular exposure device according to any one of claims 1 to 6, wherein a second locking groove is formed on the box door corresponding to the first locking groove, and the lock seat is fixed on one side of an opening end of the second locking groove and encloses a space for the movement of the lock pin with a side wall of the second locking groove.

9. The locking device of the experimental box on the material extravehicular exposure device, according to any one of claims 1 to 6, wherein the side of the locking seat away from the box body is a slope, and the upper part of the slope is recessed inwards to form an arc-shaped assembly opening; the lock pin is cylindrical, and when the sliding plate moves to the second position, the lock pin is in adaptive clamping connection with the arc-shaped assembling hole.

10. A test kit comprising a locking device of the test kit on the material extravehicular exposure apparatus of any of claims 1-9.