CN114313312B - Anti-rotation locking device for spaceflight carrier - Google Patents
Anti-rotation locking device for spaceflight carrier Download PDFInfo
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- CN114313312B CN114313312B CN202111683761.8A CN202111683761A CN114313312B CN 114313312 B CN114313312 B CN 114313312B CN 202111683761 A CN202111683761 A CN 202111683761A CN 114313312 B CN114313312 B CN 114313312B
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Abstract
The invention discloses an anti-rotation locking device, which comprises a first main body and a second main body which are connected through a rotating shaft, wherein one side of the rotating shaft is provided with a locking mechanism comprising a base, an elastic piece and a locking part; according to the invention, the first main body and the rotating shaft rotate simultaneously, and the elastic piece always ejects the locking part from the opening towards the rotating shaft until the rotating shaft rotates to the locking position, so that the side wall of the locking part is contacted with the first plane, the rotating shaft is limited to rotate continuously through the locking part, the rotating shaft is prevented from rotating, the first main body rotating synchronously with the rotating shaft is prevented from rotating simultaneously, the first main body can be restrained from being kept in a locking state rapidly on the premise of fixing the second main body, rotation is not generated, even in an irregular long-term vibration process, the mutual limitation of the locking part and the first plane can be kept all the time under the action of the elastic piece, the stability of the locking state of the locking device is realized, and the locking reliability between space carrier parts is improved.
Description
Technical Field
The application relates to the technical field of space vehicles, in particular to an anti-rotation locking device for a space vehicle.
Background
In the field of aerospace vehicles, locking problems of the mechanism are faced in many scenarios. Because of the special application environment of the space vehicle, high requirements are put on the structural complexity, locking reliability, compactness and unlocking difficulty of the locking mechanism.
At present, the locking mechanism mainly adopts a spring, cylindrical pin scheme and a link mechanism scheme. After the scheme of the spring and the cylindrical pin is locked, under the vibration working condition caused by high-speed movement of the space vehicle, the locking device between the mechanisms easily generates the rotation condition of the connecting mechanism, so that the locking failure is caused, the free rotation and even direct separation condition between the structures needing to be locked occurs, and the structural stability and reliability of the space vehicle are seriously influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the application provides an anti-rotation locking device for an aerospace carrier, which is used for solving the problem that the locking device in the prior art is easy to rotate.
The above object of the present invention is mainly achieved by the following technical solutions:
A anti-spin lock for an aerospace vehicle, comprising:
The first main body is provided with a rotating shaft which synchronously rotates;
The second main body is arranged on the rotating shaft, the rotating shaft penetrates through the second main body so as to enable the second main body and the first main body to rotate relatively, and a first plane is arranged on the peripheral surface of the rotating shaft;
The locking mechanism comprises a base, an elastic piece and a locking part, wherein the base is arranged on the second main body, a first cavity is formed in the base, an opening is formed in one side of the first cavity, a detachable base is arranged on the other side of the first cavity, the locking part is arranged in the first cavity, one end of the locking part can penetrate through the opening and extend out of the first cavity, the elastic piece is arranged between the locking part and the base, the locking part is pushed out from the opening towards the direction of the rotating shaft, and the rotating shaft is provided with a locking position, so that the side wall of the locking part contacts with the first plane and limits the rotating shaft to rotate.
Further, two first lugs are arranged on the first main body at intervals, two second lugs are arranged on the second main body at intervals, and the rotating shaft penetrates through the first lugs and the second lugs at the same time.
Further, one end of the rotating shaft is provided with a fastener for preventing the rotating shaft from being separated from the first support lug or the second support lug.
Further, the upper peripheral surface of the rotating shaft is provided with two second planes which are parallel to each other, the first support lug is provided with a matching hole, and when the rotating shaft penetrates through the matching hole, the inner wall of the matching hole is contacted with the second planes so as to limit the rotating shaft to rotate relative to the first support lug.
Further, a supporting block is arranged on the base, and a supporting groove attached to the outer side wall of the locking part is arranged on the side wall of the supporting block, so that when the rotating shaft is in a locking position, the supporting groove and the first plane are respectively contacted with the two radial sides of the locking part.
Further, a sliding round table is arranged on the locking part, and the inner wall of the first cavity is attached to the outer wall of the sliding round table.
Further, two sides of the sliding round table are respectively provided with a rectangular bar, two rectangular grooves are formed in the side wall of the first cavity along the axial direction of the first cavity, and the rectangular bars extend into the rectangular grooves and slide along the length direction of the rectangular grooves.
Further, the elastic member is provided as a spring.
Further, the first main body is provided with a supporting groove, a through hole is arranged in the supporting groove, when the rotating shaft is in a locking position, the base is clamped and embedded into the supporting groove, the through hole corresponds to the base, and a channel for separating the base from the base is formed.
Further, the base is in threaded connection with the base.
Compared with the prior art, the invention has the advantages that:
According to the invention, the first main body and the rotating shaft synchronously rotate, the second main body is penetrated by the rotating shaft at the same time, the locking mechanism comprising the base, the elastic piece and the locking part is arranged, the base is arranged on the second main body, the base is internally provided with the first cavity, one side of the first cavity is provided with the detachable base, the locking part is arranged in the first cavity and can extend out of the first cavity through the opening at the other side of the first cavity, the elastic piece is arranged between the locking part and the base, the rotating shaft is provided with the locking position, when the first main body and the rotating shaft synchronously rotate, the elastic piece always ejects the locking part from the opening towards the rotating shaft until the rotating shaft rotates to the locking position, the side wall of the locking part is contacted with the first plane, so that the rotating shaft is prevented from continuously rotating by the locking part, the first main body synchronously rotating with the rotating shaft is prevented from rotating, the first main body can be rapidly restrained from keeping the locking state on the premise of fixing the second main body, the rotating is not generated, even in an irregular long-term vibration process, the mutual limitation of the locking part and the first plane can be always kept through the elastic piece, the locking part and the first plane can be kept, the locking device is kept, the locking state, and the reliability of the locking part can be stably locked by the carrier is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a first angle structure of a locking device according to an embodiment of the present application;
FIG. 2 is a schematic view of a second angle structure of a locking device according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a first main body according to an embodiment of the present application;
FIG. 4 is an enlarged view of a portion of FIG. 3A, provided in accordance with an embodiment of the present application;
FIG. 5 is a schematic structural diagram of a spindle according to an embodiment of the present application;
FIG. 6 is a cross-sectional view of a locking mechanism provided by an embodiment of the present application;
FIG. 7 is a schematic diagram of an unlocked state of a first body and a second body according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a locking state of a first body and a second body according to an embodiment of the present application.
In the figure: 1. a first body; 11. a rotating shaft; 12. a first plane; 13. a first support lug; 14. a second plane; 15. a mating hole; 16. a holding groove; 17. a through hole; 2. a second body; 21. a second support lug; 31. a base; 32. an elastic member; 33. a locking part; 331. sliding round table; 34. an opening; 35. a base; 36. a support block; 37. a bracket; 38. a rectangular bar; 39. rectangular grooves; 4. a fastener.
Detailed Description
The invention is further described with reference to the drawings and specific examples. It should be noted that the description of these examples is for aiding in understanding the present invention, but is not intended to limit the present invention. Specific structural and functional details disclosed herein are merely representative of example embodiments of the invention. This invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.
As shown in fig. 1-8, a rotation-proof locking device for an aerospace vehicle comprises a first body 1, a second body 2 and a locking mechanism between the first body 1 and the second body 2, wherein:
The first main body 1 is provided with a rotating shaft 11 which synchronously rotates, and when the first main body 1 rotates around the axis of the rotating shaft 11, the rotating angle of the first main body 1 is consistent with the rotating angle of the rotating shaft 11;
The second body 2 is mounted on the rotating shaft 11, and the rotating shaft 11 penetrates through the second body 2 to enable the second body 2 and the first body 1 to rotate relatively, specifically, when the second body 2 is a reference object, the second body 2 is set to be in a state of not moving and not rotating, and the first body 1 rotates relative to the second body 2 through the rotating shaft 11; the circumference of the rotating shaft 11 is provided with a first plane 12.
The locking mechanism comprises a base 31, an elastic piece 32 and a locking part 33, wherein the base 31 is arranged on the second main body 2, a first cavity is formed in the base 31, an opening 34 is formed in one side of the first cavity, a detachable base 35 is arranged on the other side of the first cavity, the locking part 33 is arranged in the first cavity, one end of the locking part can penetrate through the opening 34 and extend out of the first cavity, the elastic piece 32 is arranged between the locking part 33 and the base 35, and the locking part 33 is ejected out from the opening 34 towards the direction of the rotating shaft 11; the rotation shaft 11 has a locking position such that a side wall of the locking portion 33 contacts the first plane 12 and restricts the rotation of the rotation shaft 11.
It should be noted that, the rotating shaft 11 has a locking position, the locking position is a relatively stable locking relationship between the rotating shaft 11 and the locking portion 33 after the rotating shaft 11 rotates along with the first body 1 by an angle, at this time, the stable position of the rotating shaft 11 is the locking position, after the relative included angle between the first body 1 and the second body 2 is designed, when the first body 1 is communicated with the rotating shaft 11 to rotate to the locking position of the rotating shaft 11, the relative included angle between the first body 1 and the second body 2 is in a designed locking state, at this time, the first plane 12 on the rotating shaft 11 is propped by the locking portion 33, the rotating shaft 11 cannot rotate around the axis continuously, so as to keep the relative position relationship between the first body 1 and the second body 2 stable, and locking is formed.
The working principle of the embodiment is as follows: through setting up first main part 1 and pivot 11 synchronous rotation, and second main part 2 is run through by pivot 11 simultaneously, set up the locking mechanical system including base 31, elastic component 32 and locking part 33, base 31 establishes on second main part 2, have first cavity in the base 31, first cavity one side is equipped with detachable base 35, locking part 33 locates in the first cavity, and can extend outside first cavity through the opening 34 of first cavity opposite side, elastic component 32 locates between locking part 33 and base 35, pivot 11 has the latched position, when first main part 1 and pivot 11 rotate simultaneously, elastic component 32 is ejecting the direction of locking part 33 from opening 34 towards pivot 11 all the time, until pivot 11 rotates to the latched position, the lateral wall of locking part 33 contacts with first plane 12, thereby continue rotatory through locking part 33 restriction pivot 11, prevent pivot 11 gyration, prevent simultaneously with the first main part 1 gyration of pivot 11 synchronous rotation, under the prerequisite of fixed second main part 2, can retrain first main part 1 to keep the locked state fast, and do not take place gyration, even if not keep the steady carrier's of mutual locking device through the steady state of elastic component 33 is kept through the steady state of elastic component in the long-term, the steady carrier device can be realized to the locking part's of the steady state of mutual locking of the side of the pivot 11.
Further, on the basis of the above embodiment, two first lugs 13 are disposed on the first main body 1 at intervals, two second lugs 21 are disposed on the second main body 2 at intervals, and the rotating shaft 11 penetrates through the first lugs 13 and the second lugs 21 at the same time.
Through two first lugs 13 and two second lugs 21 interval arrangement in proper order, perhaps two second lugs 21 set up between two first lugs 13 to be connected between first main part 1, second main part 2 and the pivot 11, set up two first lugs 13 and two second lugs 21 simultaneously, with the stability that improves the connection between first main part 1 and the pivot 11, between second main part 2 and the pivot 11, and the support nature for pivot 11 is further improved to two spaced first lugs 13 or two spaced second lugs 21, improves overall stability.
Further, on the basis of the above embodiment, one end of the rotating shaft 11 is provided with a fastener 4 for preventing the rotating shaft 11 from being separated from the first support lug 13 or the second support lug 21, so as to facilitate the disassembly and assembly of the rotating shaft 11 or the replacement of parts.
Further, on the basis of the above embodiment, the upper peripheral surface of the rotating shaft 11 has two second planes 14 parallel to each other, the distance between the two second planes 14 is smaller than the outer diameter of the rotating shaft 11, the first support lug 13 has a mating hole 15, when the rotating shaft 11 penetrates through the mating hole 15, the inner wall of the mating hole 15 contacts with the second planes 14 to limit the rotating shaft 11 to rotate relative to the first support lug 13, so that the rotating shaft 11 is limited to move in the mating hole 15 along the axial direction through the two second planes 14 and the mating hole 15, but cannot rotate in the mating hole 15 around the axial direction of the rotating shaft 11, so that the rotating shaft 11 and the second planes 14 synchronously rotate.
Further, in the above embodiment, the base 31 is provided with a supporting block 36, and a supporting groove 37 attached to an outer side wall of the locking portion 33 is provided on a side wall of the supporting block 36, so that when the rotating shaft 11 is in the locked position, the supporting groove 37 and the first plane 12 are respectively contacted with two radial sides of the locking portion 33.
When the rotating shaft 11 is at the locking position, under the pushing of the elastic piece 32, the locking part 33 rises out of the opening 34, the side wall of the locking part 33 contacts with the first plane 12 and limits the rotating shaft 11 to rotate, at the moment, the first plane 12 on the rotating shaft 11 is propped against by the locking part 33, the rotating shaft 11 cannot rotate around the axis continuously, a part of the locking part 33 is positioned in the first cavity, a part of the locking part extends out of the first cavity, the part extending out of the first cavity through the locking part 33 and the rotating shaft 11 form constraint, namely, at the moment, the locking part 33 is pushed by the rotating shaft 11, the supporting block 36 is positioned on the base 31, the supporting groove 37 on the supporting block 36 is attached to the outer side wall of the locking part 33, the supporting block 36 forms a support for the locking part 33, bending and other deformation of the locking part 33 under the action of the rotating shaft 11 is avoided, and the stability of the locking state of the locking part 33 is improved.
Further, in the above embodiment, the locking portion 33 is provided with a sliding circular table 331, and an inner wall of the first cavity is attached to an outer wall of the sliding circular table 331.
The sliding table 331 slides up and down in the first cavity under the driving of the elastic member 32, so as to drive the locking portion 33 to move up and down.
And the outer wall of the sliding round table 331 is attached to the inner wall of the first cavity, so as to ensure that the position of the locking part 33 in the first cavity is stable, and avoid the deviation of the locking part 33.
Further, on the basis of the above embodiment, two rectangular strips 38 are respectively disposed on two sides of the sliding table 331, two rectangular grooves 39 are disposed on the side wall of the first cavity along the axial direction of the first cavity, and the rectangular strips 38 extend into the rectangular grooves 39 and slide along the length direction of the rectangular grooves 39.
The two rectangular strips 38 extend into the two rectangular grooves 39 and move up and down synchronously along with the circular table, the arc-shaped grooves guide the rectangular strips 38, the length extending direction of the rectangular grooves 39 is the same as the axial direction of the first cavity, the sliding circular table 331 is prevented from rotating around the axis of the first cavity in the lifting process, the locking part 33 is restrained from moving up and down, deflection does not occur, the degree of fit with the first plane 12 on the rotating shaft 11 after the locking part 33 extends out of the opening 34 is improved, and the locking effect is improved.
Further, on the basis of the above embodiment, the elastic member 32 is provided as a spring.
Other elastic members 32 capable of pushing the locking portion 33 out of the opening 34 can accomplish the replacement of the spring on the basis of using the spring as the elastic member 32.
Further, on the basis of the above embodiment, the first body 1 is provided with a holding groove 16, the holding groove 16 is provided with a through hole 17, when the rotating shaft 11 is in the locking position, the base 31 is clamped into the holding groove 16, the through hole 17 corresponds to the base 35, and a channel in which the base 35 is separated from the base 31 is formed.
Specifically, if the included angle between the first body 1 and the second body 2 is 180 ° when the included angle between the first body 1 and the second body 2 is set to be the locking state of the first body 1 and the second body 2, the first body 1 rotates to be 180 ° with the included angle between the second body 2, the first body 1 drives the rotating shaft 11 to rotate to the locking position, at this time, the elastic member 32 ejects the locking portion 33, the locking portion 33 extends to the first plane 12 side and contacts with the first plane 12 to form the restriction on the rotating shaft 11, at this time, the first body 1 cannot continue to rotate relative to the second body 2, the base 31 is clamped in the supporting groove 16, the rotating shaft 11 is prevented from being stressed, the stability of the locking state of the first body 1 and the second body 2 is improved, if the locking state is required to be unlocked, after the base 35 is separated from the base 31 through the through hole 17, the base 35, the elastic member 32 and the locking portion 33 are sequentially released from the through hole 17, after the locking portion 33 is separated from the rotating shaft 11, the first body 1 and the second body 2 are in an unlocking state, at this time, the first body 1 can rotate around the axis of the rotating shaft 11 again.
Further, on the basis of the above embodiment, the base 35 is screwed with the base 31, so that the base 35 is detached from the base 31.
It should be appreciated that the terms first, second, etc. are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. Although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of example embodiments of the present invention.
It should be understood that the term "and/or" is merely an association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B may mean: the terms "/and" herein describe another associative object relationship, indicating that there may be two relationships, e.g., a/and B, may indicate that: the character "/" herein generally indicates that the associated object is an "or" relationship.
It should be understood that in the description of the present invention, the terms "upper", "vertical", "inner", "outer", etc. indicate an orientation or a positional relationship in which the disclosed product is conventionally put in use, or an orientation or a positional relationship that is conventionally understood by those skilled in the art, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates to the contrary. It will be further understood that the terms "comprises," "comprising," "includes," "including" and/or "including," when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, and do not preclude the presence or addition of one or more other features, numbers, steps, operations, elements, components, and/or groups thereof.
In the following description, specific details are provided to provide a thorough understanding of example embodiments. However, it will be understood by those of ordinary skill in the art that the example embodiments may be practiced without these specific details. In other embodiments, well-known processes, structures, and techniques may not be shown in unnecessary detail in order to avoid obscuring the example embodiments.
The foregoing is merely exemplary of embodiments of the present application to enable those skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A spin-proof locking device for an aerospace vehicle, comprising:
a first main body (1) is provided with a rotating shaft (11) which synchronously rotates;
the second main body (2) is arranged on the rotating shaft (11), the rotating shaft (11) penetrates through the second main body (2) so as to enable the second main body (2) and the first main body (1) to rotate relatively, and a first plane (12) is arranged on the peripheral surface of the rotating shaft (11);
The locking mechanism comprises a base (31), an elastic piece (32) and a locking part (33), wherein the base (31) is arranged on the second main body (2), a first cavity is formed in the base (31), an opening (34) is formed in one side of the first cavity, a detachable base (35) is arranged on the other side of the first cavity, the locking part (33) is arranged in the first cavity, one end of the locking part (33) can penetrate through the opening (34) and extend out of the first cavity, the elastic piece (32) is arranged between the locking part (33) and the base (35), the locking part (33) is ejected out from the opening (34) towards the direction of the rotating shaft (11), and the rotating shaft (11) is provided with a locking position so that the side wall of the locking part (33) is in contact with the first plane (12) and the rotating shaft (11) is limited;
The first main body (1) is provided with a supporting groove (16), the supporting groove (16) is internally provided with a through hole (17), when the rotating shaft (11) is positioned at a locking position, the base (31) is clamped and embedded into the supporting groove (16), the through hole (17) corresponds to the base (35), and a channel for separating the base (35) from the base (31) is formed;
When the first main body (1) and the rotating shaft (11) rotate, the elastic piece (32) always ejects the locking part (33) from the opening (34) towards the rotating shaft (11) until the rotating shaft (11) rotates to the locking position, and the side wall of the locking part (33) is in contact with the first plane (12), so that the rotating shaft (11) is limited to rotate continuously through the locking part (33), and the rotating shaft (11) is prevented from rotating.
2. A anti-spin lock for an aerospace vehicle according to claim 1, wherein: two first lugs (13) are arranged on the first main body (1) at intervals, two second lugs (21) are arranged on the second main body (2) at intervals, and the rotating shaft (11) penetrates through the first lugs (13) and the second lugs (21) at the same time.
3. A lock for a space vehicle according to claim 2, wherein: one end of the rotating shaft (11) is provided with a fastener (4) for preventing the rotating shaft (11) from being separated from the first support lug (13) or the second support lug (21).
4. A lock for a space vehicle according to claim 2, wherein: the upper peripheral surface of the rotating shaft (11) is provided with two second planes (14) which are parallel to each other, the first supporting lugs (13) are provided with matching holes (15), and when the rotating shaft (11) penetrates through the matching holes (15), the inner walls of the matching holes (15) are contacted with the second planes (14) so as to limit the rotating shaft (11) to rotate relative to the first supporting lugs (13).
5. A anti-spin lock for an aerospace vehicle according to claim 1, wherein: the base (31) is provided with a supporting block (36), and the side wall of the supporting block (36) is provided with a supporting groove (37) attached to the outer side wall of the locking part (33), so that when the rotating shaft (11) is in a locking position, the supporting groove (37) and the first plane (12) are respectively contacted with the two radial sides of the locking part (33).
6. A anti-spin lock for an aerospace vehicle according to claim 1, wherein: the locking part (33) is provided with a sliding round table (331), and the inner wall of the first cavity is attached to the outer wall of the sliding round table (331).
7. The anti-rollback lockout device for an aerospace vehicle of claim 6, wherein: two sides of the sliding round table (331) are respectively provided with a rectangular bar (38), two rectangular grooves (39) are formed in the side wall of the first cavity along the axial direction of the first cavity, and the rectangular bars (38) extend into the rectangular grooves (39) and slide along the length direction of the rectangular grooves (39).
8. A anti-spin lock for an aerospace vehicle according to claim 1, wherein: the elastic member (32) is provided as a spring.
9. A anti-spin lock for an aerospace vehicle according to claim 1, wherein: the base (35) is in threaded connection with the base (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111683761.8A CN114313312B (en) | 2021-12-31 | 2021-12-31 | Anti-rotation locking device for spaceflight carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111683761.8A CN114313312B (en) | 2021-12-31 | 2021-12-31 | Anti-rotation locking device for spaceflight carrier |
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| Publication Number | Publication Date |
|---|---|
| CN114313312A CN114313312A (en) | 2022-04-12 |
| CN114313312B true CN114313312B (en) | 2024-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111683761.8A Active CN114313312B (en) | 2021-12-31 | 2021-12-31 | Anti-rotation locking device for spaceflight carrier |
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| RU2514015C1 (en) * | 2012-12-07 | 2014-04-27 | Федеральное Государственное Унитарное Предприятие "Государственный научно-производственный ракетно-космический центр "ЦСКБ-Прогресс" (ФГУП "ГНПРКЦ "ЦСКБ-Прогресс") | Spacecraft light protection device cover assembly |
| CN109707726A (en) * | 2019-01-29 | 2019-05-03 | 李俊楠 | A kind of shaft connector and collapsible vehicle using motor |
| CN112498751A (en) * | 2020-12-15 | 2021-03-16 | 航天科工火箭技术有限公司 | Connecting and unlocking device |
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