Deployment mechanism locking device

Abstract

The present invention belongs to the technical field of spacecraft deployment mechanisms, and discloses a deployment mechanism locking device, including a first hinge structure, a second hinge structure and a self-locking assembly. The first hinge structure and the second hinge structure are relatively rotatably connected, and are respectively connected to two deployable parts of the deployable mechanism. The self-locking assembly includes a locking seat and a locking pin, the locking seat is arranged on the first hinge structure, and the locking pin is floatingly arranged on the second hinge structure. During the process of the second hinge structure rotating from an active state to a locked state relative to the first hinge structure, the locking pin abuts against the locking seat and moves along the locking seat. After the second hinge structure rotates to a locked state relative to the first hinge structure, the locking pin extends into and locks in the locking seat. The deployment mechanism locking device can simplify the structure and provide high rigidity and efficient locking for the two deployable parts of the deployable mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of spacecraft deployment mechanisms, and in particular to a deployment mechanism locking device. Background Art

[0002] In the aerospace field, due to the space limitations of the rocket fairing, the onboard satellite antenna mechanism and deployable mechanisms such as solar panels are in a folded state before launch. After the satellite enters orbit, the onboard deployable mechanism is deployed into place through the deployment drive device and then locked.

[0003] With the increasing demand for satellite maneuvers on orbit, higher requirements are placed on the deployment fundamental frequency of the onboard deployable mechanism. For structural units with a certain inherent structure, the deployment fundamental frequency of the onboard deployable mechanism is determined by the stiffness of the hinge, so it is necessary to increase the stiffness when the hinge is locked.

[0004] Existing satellite-borne deployable mechanisms generally use pin-slot hinges. After locking, there is unreliable clamping between the locking slot and the column pin, and the locking stiffness is low due to the short length of the locking arm. In addition, the design of the locking slot and the composition of each component are relatively complicated, which is not conducive to simplification of the structure and has insufficient reliability.

[0005] Therefore, there is an urgent need for a deployment mechanism locking device to solve the above problems. Summary of the invention

[0006] An object of the present invention is to provide a deployment mechanism locking device, which can simplify the structure and provide high rigidity and efficient locking for two deployable parts of the deployable mechanism, thereby improving the reliability of the deployable mechanism.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] Deployment mechanism locking device, comprising:

[0009] A first hinge structure and a second hinge structure respectively connected to the two expandable parts of the expandable mechanism and relatively rotatably connected;

[0010] A self-locking assembly, comprising a locking seat and a locking pin, wherein the locking seat is arranged on the first hinge structure, and the locking pin is floatingly arranged on the second hinge structure;

[0011] During the process of the second hinge structure rotating from the active state to the locked state relative to the first hinge structure, the locking pin abuts against the locking seat and moves along the locking seat;

[0012] After the second hinge structure rotates relative to the first hinge structure to a locked state, the locking pin extends into and is locked in the locking seat.

[0013] As a preferred solution of the locking device of the deployment mechanism provided by the present invention, in the rotation direction of the second hinge structure from the active state to the locked state relative to the first hinge structure, the peripheral side of the locking seat is sequentially provided with an arc wheel surface and a locking groove;

[0014] During the process of the second hinge structure rotating from the active state to the locked state relative to the first hinge structure, the locking pin abuts against the arc-shaped wheel surface;

[0015] After the second hinge structure rotates relative to the first hinge structure to a locked state, the locking pin extends into and is locked in the locking groove.

[0016] As a preferred solution of the locking device of the unfolding mechanism provided by the present invention, an inclined avoidance surface is provided on the peripheral side of the locking seat on a side of the arcuate wheel surface away from the locking groove, and the inclined avoidance surface can avoid the second hinged structure.

[0017] As a preferred solution of the deployment mechanism locking device provided by the present invention, a floating groove is provided on one side of the second hinge structure facing the locking seat, and an elastic element is provided at the bottom of the floating groove;

[0018] The locking pin is floatably arranged in the floating groove through the elastic element, and can float and extend relative to the notch of the floating groove under the action of the elastic element to extend into the locking groove;

[0019] The locking pin can also float and retract relative to the notch of the floating groove under the abutment of the arcuate wheel surface.

[0020] As a preferred solution of the deployment mechanism locking device provided by the present invention, one side of the locking pin is inclined to form an inclined surface, and along the direction of the notch extending out of the floating groove, the inclined surface gradually moves away from the groove wall of the floating groove;

[0021] When the locking pin is extended into and locked in the locking groove, a portion of the inclined surface extending out of the floating groove abuts against a side of the locking groove close to the arc-shaped wheel surface.

[0022] As a preferred solution of the locking device of the deployment mechanism provided by the present invention, the locking pin includes a locking abutment portion and a locking connection portion, the elastic element abuts against the locking abutment portion, the locking connection portion is fixedly arranged on the locking abutment portion and is consistent with the extension direction of the elastic element, and the locking abutment portion can float out or retract relative to the notch of the floating groove.

[0023] As a preferred solution of the deployment mechanism locking device provided by the present invention, the locking connection portion is fixedly connected to the middle portion of the locking abutment portion in the length direction to form a T-shaped structure, and there are two elastic elements, which are respectively located on both sides of the locking connection portion.

[0024] As a preferred solution of the deployment mechanism locking device provided by the present invention, a through hole is provided at the bottom of the floating groove, and a reset connection hole is provided at the locking connection portion opposite to the through hole, and the through hole can allow a reset screw to extend into and be connected to the reset connection hole; the reset screw can apply a pulling force toward the bottom of the floating groove on the locking connection portion.

[0025] As a preferred solution of the locking device of the unfolding mechanism provided by the present invention, the first hinge structure includes a first connection part and a first rotating connection part fixedly connected to each other at an angle, and the second hinge structure includes a second connection part and a second rotating connection part fixedly connected to each other at an angle, and the first connection part and the second connection part are respectively connected to two unfoldable parts of the unfoldable mechanism;

[0026] The deployment mechanism locking device further comprises a rotating shaft structure, the rotating shaft structure is relatively fixedly connected to the first rotating connection part and is fixedly arranged with the locking seat, and the second rotating connection part is rotatably connected to the rotating shaft structure.

[0027] As a preferred solution of the unfolding mechanism locking device provided by the present invention, the unfolding mechanism locking device also includes a micro switch, which is arranged on the first hinge structure and can send an unfolding signal when the second hinge structure rotates to a locked state relative to the first hinge structure.

[0028] Beneficial effects of the present invention:

[0029] The locking device of the unfolding mechanism provided by the present invention comprises a first hinge structure, a second hinge structure and a self-locking assembly. The first hinge structure and the second hinge structure are relatively rotatably connected and are respectively connected to the two unfoldable parts of the unfoldable mechanism. That is to say, through the first hinge structure and the second hinge structure, the two unfoldable parts of the unfoldable mechanism can be rotatably connected to each other. The self-locking assembly comprises a locking seat and a locking pin, the locking seat is arranged on the first hinge structure, and the locking pin can be floatingly arranged on the second hinge structure. During the process of the second hinge structure rotating from the active state to the locked state relative to the first hinge structure, the locking pin abuts against the locking seat and moves along the locking seat. After the second hinge structure rotates to the locked state relative to the first hinge structure, the locking pin extends into and locks in the locking seat. Through the cooperation of the above-mentioned locking pin and the locking seat, the structure can be simplified, the normal process of unfolding the two unfoldable parts is ensured, and after the two unfoldable parts are fully rotated and unfolded, self-locking is achieved, and high rigidity and efficient locking are provided for the two unfoldable parts of the unfoldable mechanism, thereby improving the reliability of the unfoldable mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0031] Figure 1 is a schematic diagram of the locking device of the deployment mechanism provided by the present invention in an active state;

[0032] Figure 2 is a cross-sectional view of the locking device of the deployment mechanism provided by the present invention in an active state;

[0033] Figure 3 The locking device of the deployment mechanism provided by the present invention is in a locked state. Figure 1 ;

[0034] Figure 4 The locking device of the deployment mechanism provided by the present invention is in a locked state. Figure 2 ;

[0035] Figure 5 is a cross-sectional view of the locking device of the deployment mechanism provided by the present invention in a locked state;

[0036] Figure 6 is a schematic structural diagram of a locking pin provided by the present invention;

[0037] Figure 7 It is a side view of the locking pin provided by the present invention.

[0038] In the figure:

[0039] 100, first hinge structure; 110, first connection part; 120, first rotation connection part;

[0040] 200, second hinge structure; 210, floating groove; 211, through hole; 220, second connecting part; 230, second rotating connecting part;

[0041] 300, self-locking assembly; 310, locking seat; 311, arc-shaped wheel surface; 312, locking groove; 313, inclined avoidance surface; 320, locking pin; 321, inclined surface; 322, locking abutment portion; 323, locking connection portion; 324, reset connection hole;

[0042] 400, shaft structure;

[0043] 500. Micro switch. DETAILED DESCRIPTION

[0044] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0045] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0046] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0048] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or are the positions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0049] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", and "fix" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0051] In this embodiment, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in the present invention generally indicates that the associated objects before and after are in an "or" relationship.

[0052] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0053] Figure 1 A schematic diagram showing the locking device of the deployment mechanism provided by the present invention in an active state; Figure 2 A cross-sectional view showing the locking device of the deployment mechanism provided by the present invention in an active state; Figure 3 Schematic diagram showing the locking device of the deployment mechanism provided by the present invention in a locked state Figure 1 ; Figure 4 Schematic diagram showing the locking device of the deployment mechanism provided by the present invention in a locked state Figure 2 ; Figure 5 A cross-sectional view showing the locking device of the deployment mechanism provided by the present invention in a locked state. Figure 1-Figure 5 , this embodiment provides a deployment mechanism locking device.

[0054] Specifically, the locking device of the unfolding mechanism includes a first hinge structure 100, a second hinge structure 200 and a self-locking assembly 300. The first hinge structure 100 and the second hinge structure 200 are respectively connected to the two unfoldable parts of the unfoldable mechanism, and the first hinge structure 100 and the second hinge structure 200 can rotate relative to the two unfoldable parts of the unfoldable mechanism. When the two unfoldable parts of the unfoldable mechanism are in a completely un-expanded state, the first hinge structure 100 and the second hinge structure 200 are in a folded state; during the relative rotation and unfolding of the two unfoldable parts of the unfoldable mechanism, the first hinge structure 100 and the second hinge structure 200 are in an active state; when the two unfoldable parts of the unfoldable mechanism are unfolded in place, the first hinge structure 100 and the second hinge structure 200 can be locked to each other through the self-locking assembly 300, and at this time, the first hinge structure 100 and the second hinge structure 200 are in a locked state. The self-locking assembly 300 can improve the rigidity of the locking position between the two unfoldable parts, and realize efficient locking, thereby improving the reliability of the unfoldable mechanism. In this embodiment, the deployable mechanism may be an onboard satellite antenna mechanism and a solar wing, etc.

[0055] Continue to refer to Figure 1 , Figure 3 and Figure 4 The first hinge structure 100 includes a first connection part 110 and a first rotating connection part 120 which are fixedly connected to each other at an angle. The second hinge structure 200 includes a second connection part 220 and a second rotating connection part 230 which are fixedly connected to each other at an angle. The first connection part 110 and the second connection part 220 can be connected to two deployable parts of the deployable mechanism respectively. The deployment mechanism locking device also includes a rotating shaft structure 400, which is relatively fixedly connected to the first rotating connection part 120 and fixedly connected to a part of the self-locking component 300, and the second rotating connection part 230 is rotatably connected to the rotating shaft structure 400.

[0056] Specifically, the first rotating connection part 120 includes two first connecting support plates, and the rotating shaft structure 400 is fixed and penetrated in the two first connecting support plates. The second rotating connection part 230 includes two second connecting support plates, and the rotating shaft structure 400 is simultaneously penetrated in the two second connecting support plates, and the two second connecting support plates can rotate relative to the rotating shaft structure 400.

[0057] Specifically, the rotating shaft structure 400 is made of stainless steel, and its sleeve is made of polyimide or polytetrafluoroethylene to form an isolation between the first rotating connection part 120 and the second rotating connection part 230 to prevent cold welding between the two. In order to prevent cold welding between the torsion spring and the rotating shaft structure 400 made of stainless steel, the surface of the rotating shaft structure 400 needs to be treated with molybdenum disulfide.

[0058] Continue to refer to Figure 1-Figure 5 The self-locking assembly 300 includes a locking seat 310 and a locking pin 320. The locking seat 310 is disposed on the first hinge structure 100, specifically between the two first connecting support plates, and is fixedly connected to the first connecting portion 110. The rotating shaft structure 400 is relatively fixedly penetrated in the locking seat 310. The locking pin 320 can be floatingly disposed on the second hinge structure 200. During the process of the second hinge structure 200 rotating from the active state to the locked state relative to the first hinge structure 100, the locking pin 320 can abut against the locking seat 310 and move along the locking seat 310. After the second hinge structure 200 rotates to the locked state relative to the first hinge structure 100, the locking pin 320 extends into and is locked in the locking seat 310.

[0059] Specifically, in the rotation direction of the second hinge structure 200 from the active state to the locked state relative to the first hinge structure 100, the circumferential side of the locking seat 310 is sequentially provided with an arcuate wheel surface 311 and a locking groove 312. In the process of the second hinge structure 200 rotating from the active state to the locked state relative to the first hinge structure 100, the locking pin 320 can abut against the arcuate wheel surface 311. After the second hinge structure 200 rotates to the locked state relative to the first hinge structure 100, the locking pin 320 can extend into and lock in the locking groove 312 to achieve self-locking.

[0060] To be more specific, an inclined avoidance surface 313 is provided on the circumferential side of the locking seat 310 on the side of the arcuate wheel surface 311 away from the locking groove 312. The inclined avoidance surface 313 can avoid the second hinged structure 200 when the two expandable parts of the expandable mechanism are in a completely unfolded state, that is, when the first hinged structure 100 and the second hinged structure 200 are in a folded state, thereby avoiding structural interference between the locking seat 310 and the second hinged structure 200.

[0061] More specifically, the second hinge structure 200 is provided with a floating groove 210 on one side facing the locking seat 310, and an elastic element (not shown) is provided at the bottom of the floating groove 210. The locking pin 320 is provided in the floating groove 210 in a floating manner through the elastic element. When the first hinge structure 100 and the second hinge structure 200 are in an active state, the locking pin 320 can float and extend relative to the notch of the floating groove 210 under the action of the elastic element to extend into the locking groove 312. When the first hinge structure 100 and the second hinge structure 200 are in a locked state, the locking pin 320 can also float and retract relative to the notch of the floating groove 210 under the abutment of the arc wheel surface 311.

[0062] Figure 6 The schematic diagram of the structure of the locking pin provided by the present invention is shown. Figure 6 The locking pin 320 includes a locking abutment portion 322 and a locking connection portion 323. The elastic element abuts against the locking abutment portion 322, and the locking connection portion 323 is fixedly disposed on the locking abutment portion 322 and is consistent with the extension direction of the elastic element. The locking abutment portion 322 can float out or retract relative to the notch of the floating groove 210. In this embodiment, the elastic element can specifically be a spring.

[0063] Specifically, the locking connection portion 323 is fixedly connected to the middle portion of the locking abutment portion 322 in the length direction to form a T-shaped structure. There are two elastic elements, which are respectively located on both sides of the locking connection portion 323 and are connected to the bottom of the floating groove 210. Through the above arrangement, the balance of the extension and contraction of the locking pin 320 in the floating groove 210 can be improved.

[0064] More specifically, the bottom of the floating groove 210 is provided with a through hole 211, and the locking connection portion 323 is provided with a reset connection hole 324 opposite to the through hole 211, and the through hole 211 can be inserted with a reset screw and connected to the reset connection hole 324. The reset screw applies a pulling force toward the bottom of the floating groove 210 to the locking connection portion 323, so that the locking abutment portion 322 can be disengaged from the locking groove 312, so that the locking pin 320 is reset, and the first hinge structure 100 and the second hinge structure 200 are unlocked.

[0065] Figure 7 A side view of the locking pin provided by the present invention is shown, referring to Figure 2 and Figure 5-Figure 7One side of the locking pin 320 is inclined to form an inclined surface 321, and along the direction of extending out of the notch of the floating groove 210, the inclined surface 321 gradually moves away from the groove wall of the floating groove 210. When the locking pin 320 extends into and is locked in the locking groove 312, a portion of the inclined surface 321 extending out of the floating groove 210 abuts against a side of the locking groove 312 close to the arc wheel surface 311.

[0066] Specifically, in this embodiment, the angle ɑ between the inclined surface 321 and the axial direction of the locking pin 320 is not greater than 5.7°. By selecting the angle of the above-mentioned angle ɑ, when the first hinge structure 100 and the second hinge structure 200 rotate to reach the locked state, the limiting surfaces between the first hinge structure 100 and the second hinge structure 200 can be abutted to the greatest extent. At the same time, the angle of the above-mentioned angle ɑ is smaller than the friction angle that causes the locking pin 320 to slide, which can prevent the locking pin 320 from rebounding in the opposite direction, that is, the locking pin 320 can play a role in inhibiting the reverse rotation of the second hinge structure 200 relative to the first hinge structure 100 through friction self-locking.

[0067] Preferably, the deployment mechanism locking device further includes a micro switch 500. The micro switch 500 is disposed on the first hinge structure 100, and can send a deployment signal when the second hinge structure 200 rotates to a locked state relative to the first hinge structure 100, so as to facilitate the subsequent control steps of the deployment mechanism. In this embodiment, the micro switch 500 is specifically disposed at 45 degrees to the first connecting portion 110.

[0068] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The locking device of the unfolding mechanism is characterized in that: include: A first hinge structure (100) and a second hinge structure (200) respectively connected to two expandable parts of the expandable mechanism and rotatably connected relative to each other; A self-locking assembly (300) comprising a locking seat (310) and a locking pin (320), wherein the locking seat (310) is arranged on the first hinge structure (100), and the locking pin (320) is floatingly arranged on the second hinge structure (200); During the process of the second hinge structure (200) rotating from an active state to a locked state relative to the first hinge structure (100), the locking pin (320) abuts against the locking seat (310) and moves along the locking seat (310); After the second hinge structure (200) is rotated relative to the first hinge structure (100) to a locked state, the locking pin (320) extends into and is locked in the locking seat (310); In the rotation direction of the second hinged structure (200) from the active state to the locked state relative to the first hinged structure (100), an arcuate wheel surface (311) and a locking groove (312) are sequentially arranged on the circumference of the locking seat (310); During the process of the second hinged structure (200) rotating from an active state to a locked state relative to the first hinged structure (100), the locking pin (320) abuts against the arc-shaped wheel surface (311); After the second hinge structure (200) is rotated relative to the first hinge structure (100) to a locked state, the locking pin (320) extends into and is locked in the locking groove (312); A floating groove (210) is provided on a side of the second hinge structure (200) facing the locking seat (310), and an elastic element is provided at the bottom of the floating groove (210); The locking pin (320) is floatably arranged in the floating groove (210) via the elastic element, and can float and extend relative to the notch of the floating groove (210) under the action of the elastic element to extend into the locking groove (312); The locking pin (320) can also float and retract relative to the notch of the floating groove (210) under the abutment of the arc-shaped wheel surface (311); One side of the locking pin (320) is inclined to form an inclined surface (321), and along the direction of the notch extending out of the floating groove (210), the inclined surface (321) gradually moves away from the groove wall of the floating groove (210); When the locking pin (320) extends into and is locked in the locking groove (312), a portion of the inclined surface (321) extending out of the floating groove (210) abuts against a side of the locking groove (312) close to the arc-shaped wheel surface (311); The included angle ɑ between the inclined surface (321) and the axial direction of the locking pin (320) is smaller than the friction angle causing the locking pin (320) to slide.

2. The deployment mechanism locking device according to claim 1, characterized in that: An inclined avoidance surface (313) is provided on the peripheral side of the locking seat (310) on a side of the arc-shaped wheel surface (311) away from the locking groove (312), and the inclined avoidance surface (313) can avoid the second hinged structure (200).

3. The deployment mechanism locking device according to claim 1, characterized in that: The locking pin (320) comprises a locking abutment portion (322) and a locking connection portion (323); the elastic element abuts against the locking abutment portion (322); the locking connection portion (323) is fixedly arranged on the locking abutment portion (322) and is consistent with the extension direction of the elastic element; the locking abutment portion (322) can float, extend or retract relative to the notch of the floating groove (210).

4. The deployment mechanism locking device according to claim 3, characterized in that: The locking connection portion (323) is fixedly connected to the middle portion of the locking abutment portion (322) in the length direction to form a T-shaped structure. There are two elastic elements, which are respectively located on both sides of the locking connection portion (323).

5. The deployment mechanism locking device according to claim 3, characterized in that: The bottom of the floating groove (210) is provided with a through hole (211), and the locking connection portion (323) is provided with a reset connection hole (324) facing the through hole (211). The through hole (211) can allow a reset screw to extend into and be connected to the reset connection hole (324); The reset screw can apply a pulling force to the locking connection portion (323) toward the groove bottom of the floating groove (210).

6. The deployment mechanism locking device according to claim 1, characterized in that: The first hinge structure (100) comprises a first connection portion (110) and a first rotating connection portion (120) which are fixedly connected to each other at an angle, and the second hinge structure (200) comprises a second connection portion (220) and a second rotating connection portion (230) which are fixedly connected to each other at an angle, and the first connection portion (110) and the second connection portion (220) are respectively connected to two expandable portions of the expandable mechanism; The deployment mechanism locking device further comprises a rotating shaft structure (400), wherein the rotating shaft structure (400) is relatively fixedly connected to the first rotating connection portion (120) and is fixedly arranged with the locking seat (310), and the second rotating connection portion (230) is rotatably connected to the rotating shaft structure (400).

7. The deployment mechanism locking device according to any one of claims 1 to 6, characterized in that: The deployment mechanism locking device further comprises a micro switch (500), wherein the micro switch (500) is arranged on the first hinge structure (100) and is capable of sending a deployment completion signal when the second hinge structure (200) rotates to a locked state relative to the first hinge structure (100).

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