A novel deployment and retraction device for a space hatch

Abstract

The present invention provides a novel deployment and retraction device for a space hatch, comprising: the fixed end of the left deployment and retraction device is installed on the inner side of the frame body, and the moving end of the left deployment and retraction device is installed on the inner side of the left hatch, so that the left hatch rotates around the frame body to realize the opening or closing of the left hatch. The left deployment and retraction device has a left auxiliary device for assisting the opening of the left hatch; the fixed end of the right deployment and retraction device is installed on the inner side of the frame body, and the moving end of the right deployment and retraction device is installed on the inner side of the right hatch, so that the right hatch rotates around the frame body to realize the opening or closing of the right hatch. The right deployment and retraction device has a right auxiliary device for assisting the opening of the right hatch; the central locking mechanism includes a passive lock post arranged on the inner side of the left hatch and an active lock hook arranged on the inner side of the right hatch; the controller is electrically connected to the left deployment and retraction device and the right deployment and retraction device to drive the left deployment and retraction device and the right deployment and retraction device to move.

Description

Technical Field

[0001] The present invention relates to the technical field of space hatch doors, and particularly to a novel unfolding and retracting device for a space hatch door. Background Art

[0002] Most space vehicles such as space shuttles, spacecrafts, and space stations are equipped with hatch mechanisms. During the launch stage, the hatch mechanism is locked to achieve in-cabin sealing and withstand the force and thermal environment loads. After entering orbit, before performing tasks, the hatch mechanism unfolds and retracts to achieve the release of in-cabin loads. Due to experiencing the force and thermal loads during the launch stage and the long-term in-orbit high and low temperature vacuum environment, structural deformations, cold welding of contact surfaces, etc. may occur in the hatch structure and the compressed part of the vehicle structure, resulting in an increase in the unfolding and retracting resistance after the hatch is unlocked and a relatively low reliability of unfolding and retracting.

[0003] Therefore, the present invention provides a novel unfolding and retracting device for a space hatch door. Summary of the Invention

[0004] Aiming at the defects in the prior art, the purpose of the present invention is to provide a novel unfolding and retracting device for a space hatch door.

[0005] A novel unfolding and retracting device for a space hatch door includes: a frame body, a left hatch door, a right hatch door, a first hinge member, a second hinge member, a left unfolding and retracting device, a right unfolding and retracting device, and a controller;

[0006] One end of the first hinge member is installed on the outer side surface of the frame body, and the other end is installed on the outer side surface of the left hatch door;

[0007] One end of the second hinge member is installed on the outer side surface of the frame body, and the other end is installed on the outer side surface of the right hatch door;

[0008] The fixed end of the left unfolding and retracting device is installed on the inner side surface of the frame body, and the moving end of the left unfolding and retracting device is installed on the inner side surface of the left hatch door, so that the left hatch door rotates around the frame body to realize the opening or closing of the left hatch door and the right hatch door. The left unfolding and retracting device has a left auxiliary device for assisting the opening of the left hatch door and the right hatch door;

[0009] The fixed end of the right unfolding and retracting device is installed on the inner side surface of the frame body, and the moving end of the right unfolding and retracting device is installed on the inner side surface of the right hatch door, so that the right hatch door rotates around the frame body to realize the opening or closing of the right hatch door and the left hatch door. The right unfolding and retracting device has a right auxiliary device for assisting the opening of the right hatch door and the right hatch door;

[0010] The central locking mechanism includes a passive lock post arranged on the inner side surface of the left hatch door and an active lock hook arranged on the inner side surface of the right hatch door;

[0011] The controller is electrically connected to the left deployment and retraction device and the right deployment and retraction device, and is used to drive the left deployment and retraction device and the right deployment and retraction device to move.

[0012] Based on the above solution and as a preferred solution of the above solution: The left deployment and retraction device includes a first left deployment and retraction mechanism and a second left deployment and retraction mechanism;

[0013] The first left deployment and retraction mechanism includes a first left drive assembly electrically connected to the controller, a first left bent arm link, and a first left link. The first left drive assembly electrically connected to the controller is fixedly installed on the inner side of the frame. One end of the first left bent arm link is fixedly connected to the rotation output shaft of the first left drive assembly, and the other end is hinged to the right end of the first left link. The left end of the first left link is hinged to the inner side of the left hatch.

[0014] The second left deployment and retraction mechanism includes a second left drive assembly electrically connected to the controller, a second left bent arm link, and a second left link. The second left drive assembly electrically connected to the controller is fixedly installed on the inner side of the frame. One end of the second left bent arm link is fixedly connected to the rotation output shaft of the second left drive assembly, and the other end is hinged to the right end of the second left link. The left end of the second left link is hinged to the inner side of the left hatch.

[0015] Based on the above solution and as a preferred solution of the above solution: The first left link includes a first left half link a and a first left half link b. The left end of the first left half link a is hinged to the inner side of the left hatch. The right end of the first left half link b is hinged to the first left bent arm link. A first left auxiliary step is provided on the first left half link b;

[0016] The second left link includes a second left half link a and a second left half link b. The left end of the second left half link a is hinged to the inner side of the left hatch. The right end of the second left half link b is hinged to the second left bent arm link. A second left auxiliary step is provided on the second left half link b;

[0017] The left auxiliary device includes a first left auxiliary mechanism installed on the first left deployment and retraction mechanism and a second left auxiliary mechanism installed on the second left deployment and retraction mechanism;

[0018] The first left auxiliary mechanism includes a first left auxiliary sleeve, a first left auxiliary spring, a first left fastening nut, and a first left auxiliary adjusting gasket. The left side of the first left auxiliary sleeve is fixedly connected to the first left half connecting rod a. The first left auxiliary adjusting gasket is sleeved from the right end of the first left half connecting rod b onto the first left auxiliary step. The first left auxiliary spring is sleeved from the right end of the first left half connecting rod b onto the first left auxiliary adjusting gasket. The left end of the first left half connecting rod b extends into the first left auxiliary sleeve from the right side of the first left auxiliary sleeve and is fixed by the first left fastening nut;

[0019] The second left auxiliary mechanism includes a second left auxiliary sleeve, a second left auxiliary spring, a second left fastening nut, and a second left auxiliary adjusting gasket. The left side of the second left auxiliary sleeve is fixedly connected to the second left half connecting rod a. The second left auxiliary adjusting gasket is sleeved from the right end of the second left half connecting rod b onto the second left auxiliary step. The second left auxiliary spring is sleeved from the right end of the second left half connecting rod b onto the second left auxiliary adjusting gasket. The left end of the second left half connecting rod b extends into the second left auxiliary sleeve from the right side of the second left auxiliary sleeve and is fixed by the second left fastening nut.

[0020] Based on the above solution and as a preferred solution of the above solution: The right unfolding and folding device includes a first right unfolding and folding mechanism and a second right unfolding and folding mechanism;

[0021] The first right unfolding and folding mechanism includes a first right driving component electrically connected to the controller, a first right bent arm connecting rod, and a first right connecting rod. The first right driving component electrically connected to the controller is fixedly installed on the inner side surface of the frame. One end of the first right bent arm connecting rod is fixedly connected to the rotating output shaft of the first right driving component, and the other end is hinged to the left end of the first right connecting rod. The right end of the first right connecting rod is hinged to the inner side surface of the right hatch;

[0022] The second right unfolding and folding mechanism includes a second right driving component electrically connected to the controller, a second right bent arm connecting rod, and a second right connecting rod. The second right driving component electrically connected to the controller is fixedly installed on the inner side surface of the frame. One end of the second right bent arm connecting rod is fixedly connected to the rotating output shaft of the second right driving component, and the other end is hinged to the left end of the second right connecting rod. The right end of the second right connecting rod is hinged to the inner side surface of the right hatch.

[0023] Based on the above solution and as a preferred solution of the above solution: The first right connecting rod includes a first right half connecting rod a and a first right half connecting rod b. The right end of the first right half connecting rod a is hinged to the inner side surface of the right hatch. The left end of the first right half connecting rod b is hinged to the first right bent arm connecting rod. The first right half connecting rod b is provided with a first right auxiliary step;

[0024] The second right connecting rod includes a second right half connecting rod a and a second right half connecting rod b. The right end of the second right half connecting rod a is hinged to the inner side surface of the right hatch door. The left end of the second right half connecting rod b is hinged to the second right bent arm connecting rod. A second right auxiliary step is provided on the second right half connecting rod b.

[0025] The right auxiliary device includes a first right auxiliary mechanism mounted on the first right unfolding and folding mechanism and a second right auxiliary mechanism mounted on the second right unfolding and folding mechanism.

[0026] The first right auxiliary mechanism includes a first right auxiliary sleeve, a first right auxiliary spring, a first right fastening nut, and a first right auxiliary adjusting gasket. The left side of the first right auxiliary sleeve is fixedly connected to the first right half connecting rod a and fixed by the first right fastening nut. The first right auxiliary adjusting gasket is sleeved from the right end of the first right half connecting rod b onto the first right auxiliary step. The first right auxiliary spring is sleeved from the right end of the first right half connecting rod b onto the first right auxiliary adjusting gasket. The right end of the first right half connecting rod b extends into the first right auxiliary sleeve from the left side of the first right auxiliary sleeve.

[0027] The second right auxiliary mechanism includes a second right auxiliary sleeve, a second right auxiliary spring, a second right fastening nut, and a second right auxiliary adjusting gasket. The left side of the second right auxiliary sleeve is fixedly connected to the second right half connecting rod a. The second right auxiliary adjusting gasket is sleeved from the right end of the second right half connecting rod b onto the second right auxiliary step. The second right auxiliary spring is sleeved from the right end of the second right half connecting rod b onto the second right auxiliary adjusting gasket. The right end of the second right half connecting rod b extends into the second right auxiliary sleeve from the right side of the second right auxiliary sleeve and is fixed by the second right fastening nut.

[0028] Based on the above solution and as a preferred solution of the above solution: It further includes a support device, and the support device includes a first support component and a second support component.

[0029] The first support component includes a first separation spring mechanism, a first left pressing plate, and a first right pressing plate fixed to the inner side surface of the frame body. The first pressing plate for cooperating with the first separation spring mechanism is fixedly installed on the inner side surface of the left hatch door. The first right pressing plate for cooperating with the first separation spring mechanism is installed on the inner side surface of the right hatch door.

[0030] The second support component includes a second separation spring mechanism, a second left pressing plate, and a second right pressing plate fixed to the inner side surface of the frame body. The second pressing plate for cooperating with the second separation spring mechanism is fixedly installed on the inner side surface of the left hatch door. The second right pressing plate for cooperating with the second separation spring mechanism is installed on the inner side surface of the right hatch door.

[0031] Based on the above solution and as a preferred solution of the above solution: The first separating spring mechanism includes a first bearing plate, a first left separating mechanism, and a first right separating mechanism;

[0032] The first bearing plate is fixedly installed on the inner side surface of the frame body, and the first bearing plate is provided with a first left mounting hole and a first right mounting hole;

[0033] The first left separating mechanism includes a first left sleeve, a first left bearing, a first left ball head push rod, a first left separating spring, a first left end cover, and a first left fixing stud. The top of the first left sleeve is provided with a first upper left outer flange, and at least two first upper left screw holes are provided on the first upper left outer flange. The bottom of the first left sleeve is provided with a first lower left outer flange, and at least two first lower left screw holes are provided on the first lower left outer flange. The first left sleeve is placed in the first left mounting hole, such that the lower surface of the first left outer flange contacts the upper surface of the first bearing plate. The first left ball head push rod is disposed in the first left sleeve, and the first left bearing is sleeved on the first left ball head push rod and is located in the first left sleeve. A first left placing groove is formed at the bottom of the first left ball head push rod. The first left end cover covers the bottom of the first left sleeve, and the first left screw passes through the end cover and enters the first lower left screw hole to fix the first left end cover on the first lower left outer flange. The upper surface of the first left end cover has a first left convex rod extending into the first left placing groove. The first left separating spring is sleeved on the first left convex rod, and the bottom of the first left separating spring contacts the upper surface of the first left end cover, and the top of the first left separating spring contacts the bottom of the first left placing groove;

[0034] The first right separating mechanism includes a first right sleeve, a first right bearing, a first right ball head push rod, a first right separating spring, a first right end cover and a first right fixing stud. The top of the first right sleeve is provided with a first upper right outer flange, and at least two first upper right screw holes are provided on the first upper right outer flange. The bottom of the first right sleeve is provided with a first lower right outer flange, and at least two first lower right screw holes are provided on the first lower right outer flange. The first right sleeve is placed in the first right mounting hole, so that the lower surface of the first right outer flange contacts the upper surface of the first bearing plate. The first right ball head push rod is arranged in the first right sleeve, and the first right bearing is sleeved on the first right ball head push rod and is located in the first right sleeve. A first right placement groove is provided at the bottom of the first right ball head push rod. The first right end cover covers the bottom of the first right sleeve, and the first right screw passes through the end cover and enters the first lower right screw hole to fix the first right end cover on the first lower right outer flange. The upper surface of the first right end cover has a first right convex rod extending into the first right placement groove. The first right separating spring is sleeved on the first right convex rod, and the bottom of the first right separating spring contacts the upper surface of the first right end cover, and the top of the first right separating spring contacts the bottom of the first right placement groove.

[0035] Based on the above solution and as a preferred solution of the above solution: The second separating spring mechanism includes a second bearing plate, a second left separating mechanism and a second right separating mechanism;

[0036] The second bearing plate is fixedly installed on the inner side surface of the frame body, and a second left mounting hole and a second right mounting hole are provided on the second bearing plate;

[0037] The second left separating mechanism includes a second left sleeve, a second left bearing, a second left ball head push rod, a second left separating spring, a second left end cover and a second left fixing stud. The top of the second left sleeve is provided with a second upper left outer flange, and at least two second upper left screw holes are provided on the second upper left outer flange. The bottom of the second left sleeve is provided with a second lower left outer flange, and at least two second lower left screw holes are provided on the second lower left outer flange. The second left sleeve is placed in the second left mounting hole, such that the lower surface of the second left outer flange contacts the upper surface of the second bearing plate. The second left ball head push rod is arranged in the second left sleeve. The second left bearing is sleeved on the second left ball head push rod and is located in the second left sleeve. A second left placement groove is formed at the bottom of the second left ball head push rod. The second left end cover covers the bottom of the second left sleeve, and the second left screw passes through the end cover and enters the second lower left screw hole to fix the second left end cover on the second lower left outer flange. The upper surface of the second left end cover has a second left convex rod extending into the second left placement groove. The second left separating spring is sleeved on the second left convex rod, and the bottom of the second left separating spring contacts the upper surface of the second left end cover, and the top of the second left separating spring contacts the bottom of the second left placement groove;

[0038] The second right separating mechanism includes a second right sleeve, a second right bearing, a second right ball head push rod, a second right separating spring, a second right end cover and a second right fixing stud. The top of the second right sleeve is provided with a second upper right outer flange, and at least two second upper right screw holes are provided on the second upper right outer flange. The bottom of the second right sleeve is provided with a second lower right outer flange, and at least two second lower right screw holes are provided on the second lower right outer flange. The second right sleeve is placed in the second right mounting hole, such that the lower surface of the second right outer flange contacts the upper surface of the second bearing plate. The second right ball head push rod is arranged in the second right sleeve. The second right bearing is sleeved on the second right ball head push rod and is located in the second right sleeve. A second right placement groove is formed at the bottom of the second right ball head push rod. The second right end cover covers the bottom of the second right sleeve, and the second right screw passes through the end cover and enters the second lower right screw hole to fix the second right end cover on the second lower right outer flange. The upper surface of the second right end cover has a second right convex rod extending into the second right placement groove. The second right separating spring is sleeved on the second right convex rod, and the bottom of the second right separating spring contacts the upper surface of the second right end cover, and the top of the second right separating spring contacts the bottom of the second right placement groove.

[0039] On the basis of the above solution and as a preferred solution of the above solution: The frame includes a front frame, a rear frame, a left cross beam, and a right cross beam. One end of the left cross beam is fixedly connected to the front frame, and the other end is fixedly connected to the rear frame. One end of the right cross beam is fixedly connected to the front frame, and the other end is fixedly connected to the rear frame.

[0040] On the basis of the above solution and as a preferred solution of the above solution: The controller is installed on the inner side of the front frame or the inner side of the rear frame.

[0041] Compared with the prior art, the present invention has the following beneficial effects:

[0042] In this application, the left auxiliary device cooperates with the left deployment and retraction device to rotate the left hatch, and the right auxiliary device cooperates with the right device to rotate the right hatch, so as to realize the opening or closing of the left hatch and the right hatch. The technical solution of this application has the advantages of multiple redundant designs and high reliability.

[0043] When the hatch structure is locked by the central locking mechanism, the first left pressing plate and the second left pressing plate on the left hatch respectively press the first left separating spring and the second left separating spring, and the first right pressing plate and the second right pressing plate on the right hatch respectively press the first right separating spring and the second right separating spring, so that the first left separating spring, the second left separating spring, the first right separating spring and the second right separating spring generate compression forces; when the central locking mechanism is unlocked, the forces stored in the first left separating spring, the second left separating spring, the first right separating spring and the second right separating spring are used as the deployment driving forces, which can overcome the resistance between the left hatch and the right hatch and the front frame and the rear frame respectively.

[0044] The left deployment and retraction device drives the left hatch to deploy or retract, and the right deployment and retraction device drives the right hatch to deploy or retract, so that the left hatch and the right hatch stop moving when they are retracted to a certain angle, and rely on the central locking mechanism to tighten the left hatch and the right hatch until they are retracted and locked. At this time, the first left auxiliary spring, the second left auxiliary spring, the first right auxiliary spring and the second right auxiliary spring are compressed and store compression forces; when the central locking mechanism is unlocked, the forces stored in the first left auxiliary spring, the second left auxiliary spring, the first right auxiliary spring and the second right auxiliary spring are used as the deployment driving forces, which can assist the first separating spring mechanism and the second separating spring mechanism to overcome the resistance between the left hatch and the right hatch and the front frame and the rear frame respectively. Description of the Drawings

[0045] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, purposes and advantages of the present invention will become more obvious:

[0046] Figure 1 It is a schematic view of the retracted state of a novel deployment and retraction device for a space hatch of this application;

[0047] Figure 2 Schematic diagram of the deployment and retraction states of a novel deployment and retraction device for a space hatch in this application;

[0048] Figure 3 Schematic diagram of the overall structural support device of the second left separation mechanism and the installation of the second left separation mechanism and the second right separation mechanism on the space hatch combination in this application;

[0049] Figure 4 Schematic diagram of the composition of the second left deployment and retraction mechanism and the overall structure of the installation of the second left deployment and retraction mechanism and the second right deployment and retraction mechanism on the space hatch combination in this application.

[0050] In the figure: 1. Left hatch; 2. Right hatch; 3. Second left hinge; 4. First left hinge; 5. Second right hinge; 6. First right hinge; 7. Left crossbeam; 8. Right crossbeam; 9. Front frame; 10. Rear frame; 11. Active locking hook; 12. Passive locking post; 13. First left connection seat; 14. Second left connection seat; 15. First right connection seat; 16. Second right connection seat; 17. Second left separation mechanism; 18. Second right separation mechanism; 19. First left separation mechanism; 20. First right separation mechanism; 21. Second left pressure plate; 22. Second left ball head push rod; 23. Second left sleeve; 24. Second left bearing; 25. Second left separation spring; 26. Second left end cover; 27. Second left adjusting gasket; 28. Second left deployment and retraction mechanism; 29. First left deployment and retraction mechanism; 30. Second right deployment and retraction mechanism; 31. First right deployment and retraction mechanism; 32. Second left drive assembly; 33. Second left bent arm connecting rod; 34. Second bearing plate; 35. Second left half connecting rod b; 36. Second left auxiliary adjusting gasket; 37. Second left auxiliary spring; 38. Second left fastening nut; 39. Second left auxiliary sleeve; 40. Second left half connecting rod a; 41. Controller; 42. Second upper left flange; 43. Second lower left flange; 44. Second left convex rod; 45. Second left auxiliary step; 46. Second right pressure plate. Detailed implementation manners

[0051] The following will clearly and completely describe and discuss the technical solutions in the embodiments of the present invention in conjunction with the drawings of the present invention. Obviously, what is described here is only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0052] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0053] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] For the convenience of understanding the embodiments of the present invention, the following will combine the specification appendices Figures 1 - 4 to elaborate on the present application in detail. Taking specific embodiments as examples for further explanatory illustration, and each embodiment does not constitute a limitation to the embodiments of the present invention.

[0055] It should be noted that in the following expressions of the present application:

[0056] d: The compression height of the first left separation spring, the first right separation spring, the second left separation spring, or the second right separation spring;

[0057] F0: The pre-tightening force of the first left separation spring, the first right separation spring, the second left separation spring, or the second right separation spring;

[0058] k: The stiffness of the first left separation spring, the first right separation spring, the second left separation spring, or the second right separation spring;

[0059] F: The compression force of the first left separation spring, the first right separation spring, the second left separation spring, or the second right separation spring;

[0060] m: The distance from the acting point of the compression force F of the first left separation spring, the first right separation spring, the second left separation spring, or the second right separation spring to the corresponding first hinge or second hinge of the hatch;

[0061] θ: The included angle between the pressure F of the first left separation spring, the first right separation spring, the second left separation spring, or the second right separation spring and the distance m from the acting point to the corresponding first hinge or second hinge of the hatch;

[0062] M: The driving moment of the hatch hinge by the first left separation spring, the first right separation spring, the second left separation spring or the second right separation spring;

[0063] d': The compression height of the first left auxiliary spring, the first right auxiliary spring, the second left auxiliary spring or the second right auxiliary spring;

[0064] F0': The pre-tightening force of the first left auxiliary spring, the first right auxiliary spring, the second left auxiliary spring or the second right auxiliary spring;

[0065] k': The stiffness of the first left auxiliary spring, the first right auxiliary spring, the second left auxiliary spring or the second right auxiliary spring;

[0066] F': The compression force of the first left auxiliary spring, the first right auxiliary spring, the second left auxiliary spring or the second right auxiliary spring;

[0067] m': The distance from the acting point of the compression force F' of the first left auxiliary spring, the first right auxiliary spring, the second left auxiliary spring or the second right auxiliary spring to the corresponding first hinge or second hinge of the hatch;

[0068] θ': The included angle between the compression force F' of the first left auxiliary spring, the first right auxiliary spring, the second left auxiliary spring or the second right auxiliary spring and the distance m' from the acting point to the corresponding first hinge or second hinge of the hatch;

[0069] M': The driving moment of the first left auxiliary spring, the first right auxiliary spring, the second left auxiliary spring or the second right auxiliary spring on the hatch hinge.

[0070] See Figure 1A novel unfolding and folding device for a space hatch is shown, including: a frame, a left hatch 1, a right hatch 2, a first hinge, a second hinge, a left unfolding and folding device, a right unfolding and folding device, and a controller 41; one end of the first hinge is installed on the outer side of the frame, and the other end is installed on the outer side of the left hatch 1; one end of the second hinge is installed on the outer side of the frame, and the other end is installed on the outer side of the right hatch 2; the fixed end of the left unfolding and folding device is installed on the inner side of the frame, and the moving end of the left unfolding and folding device is installed on the inner side of the left hatch 1, so that the left hatch 1 rotates around the frame to realize the opening or closing of the left hatch 1, and the left unfolding and folding device has a left auxiliary device for assisting in opening the left hatch 1; the fixed end of the right unfolding and folding device is installed on the inner side of the frame, and the moving end of the right unfolding and folding device is installed on the inner side of the right hatch 2, so that the right hatch 2 rotates around the frame to realize the opening or closing of the right hatch 2, and the right unfolding and folding device has a right auxiliary device for assisting in opening the right hatch 2; the central locking mechanism includes a passive lock post 12 provided on the inner side of the left hatch 1 and an active lock hook 11 provided on the inner side of the right hatch 2; the controller 41 is electrically connected to the left unfolding and folding device and the right unfolding and folding device to drive the left unfolding and folding device and the right unfolding and folding device to move.

[0071] See Figure 2 and Figure 3 As shown, a specific example provided by the present application, the left unfolding and folding device includes a first left unfolding and folding mechanism 29 and a second left unfolding and folding mechanism 28; the first left unfolding and folding mechanism 29 includes a first left driving component electrically connected to the controller 41, a first left bent arm link, and a first left link. The first left driving component electrically connected to the controller 41 is fixedly installed on the inner side of the frame. One end of the first left bent arm link is fixedly connected to the rotating output shaft of the first left driving component, and the other end is hinged to the right end of the first left link. The left end of the first left link is hinged to the inner side of the left hatch 1; the second left unfolding and folding mechanism 28 includes a second left driving component 32 electrically connected to the controller 41, a second left bent arm link 33, and a second left link. The second left driving component 32 electrically connected to the controller 41 is fixedly installed on the inner side of the frame. One end of the second left bent arm link 33 is fixedly connected to the rotating output shaft of the second left driving component 32, and the other end is hinged to the right end of the second left link. The left end of the second left link is hinged to the inner side of the left hatch 1.

[0072] See Figure 2 and Figure 3As shown, a specific example provided by the present application. The first left link includes a first left half link a and a first left half link b. The left end of the first left half link a is hinged to the inner side of the left hatch 1. The right end of the first left half link b is hinged to the first left bent link. A first left auxiliary step is provided on the first left half link b. The second left link includes a second left half link a40 and a second left half link b35. The left end of the second left half link a40 is hinged to the inner side of the left hatch 1. The right end of the second left half link b35 is hinged to the second left bent link 33. A second left auxiliary step 45 is provided on the second left half link b35. The left auxiliary device includes a first left auxiliary mechanism installed on the first left deployment mechanism 29 and a second left auxiliary mechanism installed on the second left deployment mechanism 28. The first left auxiliary mechanism includes a first left auxiliary sleeve, a first left auxiliary spring, a first left fastening nut, and a first left auxiliary adjustment gasket. The left side of the first left auxiliary sleeve is fixedly connected to the first left half link a. The first left auxiliary adjustment gasket is sleeved onto the first left auxiliary step from the right end of the first left half link b. The first left auxiliary spring is sleeved onto the first left auxiliary adjustment gasket from the right end of the first left half link b. The left end of the first left half link b extends into the first left auxiliary sleeve from the right side of the first left auxiliary sleeve and is fixed by the first left fastening nut. The second left auxiliary mechanism includes a second left auxiliary sleeve 39, a second left auxiliary spring 37, a second left fastening nut 38, and a second left auxiliary adjustment gasket 36. The left side of the second left auxiliary sleeve 39 is fixedly connected to the second left half link a40. The second left auxiliary adjustment gasket 36 is sleeved onto the second left auxiliary step 45 from the right end of the second left half link b35. The second left auxiliary spring 37 is sleeved onto the second left auxiliary adjustment gasket 36 from the right end of the second left half link b35. The left end of the second left half link b35 extends into the second left auxiliary sleeve 39 from the right side of the second left auxiliary sleeve 39 and is fixed by the second left fastening nut 38.

[0073] See Figure 2 and Figure 3 As shown, a specific example provided by the present application. The right deployment device includes a first right deployment mechanism 31 and a second right deployment mechanism 30. The first right deployment mechanism 31 includes a first right drive assembly electrically connected to the controller 41, a first right bent link, and a first right link. The first right drive assembly electrically connected to the controller 41 is fixedly installed on the inner side of the frame. One end of the first right bent link is fixedly connected to the rotational output shaft of the first right drive assembly, and the other end is hinged to the left end of the first right link. The right end of the first right link is hinged to the inner side of the right hatch 2. The second right deployment mechanism 30 includes a second right drive assembly electrically connected to the controller 41, a second right bent link, and a second right link. The second right drive assembly electrically connected to the controller 41 is fixedly installed on the inner side of the frame. One end of the second right bent link is fixedly connected to the rotational output shaft of the second right drive assembly, and the other end is hinged to the left end of the second right link. The right end of the second right link is hinged to the inner side of the right hatch 2.

[0074] See Figure 2 and Figure 3 As shown, a specific example provided by the present application, the first right link includes a first right half link a and a first right half link b. The right end of the first right half link a is hinged to the inner side of the right hatch 2, the left end of the first right half link b is hinged to the first right bent link, and a first right auxiliary step is provided on the first right half link b; the second right link includes a second right half link a and a second right half link b. The right end of the second right half link a is hinged to the inner side of the right hatch 2, the left end of the second right half link b is hinged to the second right bent link, and a second right auxiliary step is provided on the second right half link b; the right auxiliary device includes a first right auxiliary mechanism installed on the first right deployment and retraction mechanism 31 and a second right auxiliary mechanism installed on the second right deployment and retraction mechanism 30; the first right auxiliary mechanism includes a first right auxiliary sleeve, a first right auxiliary spring, a first right fastening nut and a first right auxiliary adjusting gasket. The left side of the first right auxiliary sleeve is fixedly connected to the first right half link a and fixed by the first right fastening nut. The first right auxiliary adjusting gasket is sleeved from the right end of the first right half link b onto the first right auxiliary step, the first right auxiliary spring is sleeved from the right end of the first right half link b onto the first right auxiliary adjusting gasket, and the right end of the first right half link b extends into the first right auxiliary sleeve from the left side of the first right auxiliary sleeve; the second right auxiliary mechanism includes a second right auxiliary sleeve, a second right auxiliary spring, a second right fastening nut and a second right auxiliary adjusting gasket. The left side of the second right auxiliary sleeve is fixedly connected to the second right half link a. The second right auxiliary adjusting gasket is sleeved from the right end of the second right half link b onto the second right auxiliary step, the second right auxiliary spring is sleeved from the right end of the second right half link b onto the second right auxiliary adjusting gasket, and the right end of the second right half link b extends into the second right auxiliary sleeve from the right side of the second right auxiliary sleeve and is fixed by the second right fastening nut.

[0075] See Figure 2 As shown, specifically, a first left connecting seat 13 for hinged cooperation with the left end of the first left half link a and a second left connecting seat 14 for hinged cooperation with the left end of the second left half link a40 are provided on the inner side of the left hatch 1. A first right connecting seat 15 for hinged cooperation with the right end of the first right half link a and a second right connecting seat 16 for hinged cooperation with the right end of the second left half link a40 are provided on the inner side of the right hatch 2.

[0076] See Figure 2 and Figure 4As shown, a new deployment and retraction device for a space hatch of the present application further includes a support device, which includes a first support assembly and a second support assembly; the first support assembly includes a first separation spring mechanism, a first left pressure plate, and a first right pressure plate fixed to the inner side of the frame body. The first pressure plate for cooperating with the first separation spring mechanism is fixedly installed on the inner side of the left hatch 1, and the first right pressure plate for cooperating with the first separation spring mechanism is installed on the inner side of the right hatch 2; the second support assembly includes a second separation spring mechanism, a second left pressure plate 21, and a second right pressure plate 46 fixed to the inner side of the frame body. The second pressure plate for cooperating with the second separation spring mechanism is fixedly installed on the inner side of the left hatch 1, and the second right pressure plate 46 for cooperating with the second separation spring mechanism is installed on the inner side of the right hatch 2.

[0077] See Figure 2 and Figure 4As shown, in a specific example of this embodiment, the first separating spring mechanism includes a first bearing plate, a first left separating mechanism 19 and a first right separating mechanism; the first bearing plate is fixedly installed on the inner side surface of the frame body, and the first bearing plate is provided with a first left mounting hole and a first right mounting hole; the first left separating mechanism 19 includes a first left sleeve, a first left bearing, a first left ball head push rod, a first left separating spring, a first left end cover and a first left fixing stud. The top of the first left sleeve is provided with a first upper left outer flange, and at least two first upper left screw holes are provided on the first upper left outer flange. The bottom of the first left sleeve is provided with a first lower left outer flange, and at least two first lower left screw holes are provided on the first lower left outer flange. The first left sleeve is placed in the first left mounting hole, so that the lower surface of the first left outer flange contacts the upper surface of the first bearing plate. The first left ball head push rod is arranged in the first left sleeve, and the first left bearing is sleeved on the first left ball head push rod and is located in the first left sleeve. A first left placement groove is formed at the bottom of the first left ball head push rod. The first left end cover covers the bottom of the first left sleeve, and a first left screw passes through the end cover and enters the first lower left screw hole to fix the first left end cover on the first lower left outer flange. The upper surface of the first left end cover has a first left convex rod extending into the first left placement groove. The first left separating spring is sleeved on the first left convex rod, and the bottom of the first left separating spring contacts the upper surface of the first left end cover, and the top of the first left separating spring contacts the bottom of the first left placement groove; the first right separating mechanism includes a first right sleeve, a first right bearing, a first right ball head push rod, a first right separating spring, a first right end cover and a first right fixing stud. The top of the first right sleeve is provided with a first upper right outer flange, and at least two first upper right screw holes are provided on the first upper right outer flange. The bottom of the first right sleeve is provided with a first lower right outer flange, and at least two first lower right screw holes are provided on the first lower right outer flange. The first right sleeve is placed in the first right mounting hole, so that the lower surface of the first right outer flange contacts the upper surface of the first bearing plate. The first right ball head push rod is arranged in the first right sleeve, and the first right bearing is sleeved on the first right ball head push rod and is located in the first right sleeve. A first right placement groove is formed at the bottom of the first right ball head push rod. The first right end cover covers the bottom of the first right sleeve, and a first right screw passes through the end cover and enters the first lower right screw hole to fix the first right end cover on the first lower right outer flange. The upper surface of the first right end cover has a first right convex rod extending into the first right placement groove. The first right separating spring is sleeved on the first right convex rod, and the bottom of the first right separating spring contacts the upper surface of the first right end cover, and the top of the first right separating spring contacts the bottom of the first right placement groove.

[0078] See Figure 2 and Figure 4As shown in the figure, a specific example of this embodiment, the second separating spring mechanism includes a second bearing plate 34, a second left separating mechanism 17 and a first right separating mechanism 20; the second bearing plate 34 is fixedly installed on the inner side surface of the frame body, and the second bearing plate 34 is provided with a second left mounting hole and a second right mounting hole; the second left separating mechanism 17 includes a second left sleeve 23, a second left bearing 24, a second left ball head push rod 22, a second left separating spring 25, a second left end cover 26 and a second left fixing stud. The top of the second left sleeve 23 is provided with a second upper left outer flange 42, and at least two second upper left screw holes are provided on the second upper left outer flange 42. The bottom of the second left sleeve 23 is provided with a second lower left outer flange 43, and at least two second lower left screw holes are provided on the second lower left outer flange 43. The second left sleeve 23 is placed in the second left mounting hole, so that the lower surface of the second left outer flange contacts the upper surface of the second bearing plate 34. The second left ball head push rod 22 is arranged in the second left sleeve 23, and the second left bearing 24 is sleeved on the second left ball head push rod 22 and is located in the second left sleeve 23. A second left placement groove is provided at the bottom of the second left ball head push rod 22. The second left end cover 26 is covered on the bottom of the second left sleeve 23, and a second left screw passes through the end cover and enters the second lower left screw hole to fix the second left end cover 26 to the second lower left outer flange 43. The upper surface of the second left end cover 26 has a second left convex rod 44 extending into the second left placement groove. The second left separating spring 25 is sleeved on the second left convex rod 44, and the bottom of the second left separating spring 25 contacts the upper surface of the second left end cover 26, and the top of the second left separating spring 25 contacts the bottom of the second left placement groove; the first right separating mechanism 20 includes a second right sleeve, a second right bearing, a second right ball head push rod, a second right separating spring, a second right end cover and a second right fixing stud. The top of the second right sleeve is provided with a second upper right outer flange, and at least two second upper right screw holes are provided on the second upper right outer flange. The bottom of the second right sleeve is provided with a second lower right outer flange, and at least two second lower right screw holes are provided on the second lower right outer flange. The second right sleeve is placed in the second right mounting hole, so that the lower surface of the second right outer flange contacts the upper surface of the second bearing plate 34. The second right ball head push rod is arranged in the second right sleeve, and the second right bearing is sleeved on the second right ball head push rod and is located in the second right sleeve. A second right placement groove is provided at the bottom of the second right ball head push rod. The second right end cover is covered on the bottom of the second right sleeve, and a second right screw passes through the end cover and enters the second lower right screw hole to fix the second right end cover to the second lower right outer flange. The upper surface of the second right end cover has a second right convex rod extending into the second right placement groove. The second right separating spring is sleeved on the second right convex rod, and the bottom of the second right separating spring contacts the upper surface of the second right end cover, and the top of the second right separating spring contacts the bottom of the second right placement groove.

[0079] It should be noted that in this application, the first left bearing is used to enable the first left ball head push rod to slide up and down, the second left bearing is used to enable the second left ball head push rod to slide up and down, the first right bearing is used to enable the first right ball head push rod to slide up and down, and the second right bearing is used to enable the second right ball head push rod to slide up and down. Therefore, in this embodiment, the first left bearing, the second left bearing, the first right bearing, and the second right bearing can all be replaced by metal sleeves in other embodiments. It is worth mentioning that the specific structures that can achieve stable up and down movement of the first left ball head push rod, the second left ball head push rod, the first right ball head push rod, and the second right ball head push rod are all within the protection scope of this application.

[0080] See Figure 2 As shown, in a specific example of this embodiment, the frame includes a front frame 9, a rear frame 10, a left cross beam 7, and a right cross beam 8. One end of the left cross beam 7 is fixedly connected to the front frame 9, and the other end is fixedly connected to the rear frame 10. One end of the right cross beam 8 is fixedly connected to the front frame 9, and the other end is fixedly connected to the rear frame 10. The controller 41 is installed on the inner side surface of the front frame 9 or the inner side surface of the rear frame 10.

[0081] See Figure 1 and Figure 2 As shown, in a specific example of this application, the first hinge member includes a first left hinge member 4 and a second left hinge member 3 with the same structure. The first left hinge member 4 corresponds to the first left deployment and retraction mechanism 29, and the second left hinge member 3 corresponds to the second left deployment and retraction mechanism 28. The second hinge member includes a first right hinge member 6 and a second right hinge member 5 with the same structure. The first right hinge member 6 corresponds to the first right deployment and retraction mechanism 31, and the second right hinge member 5 corresponds to the second right deployment and retraction mechanism 30. It is worth mentioning that the first left hinge member 4, the second left hinge member 3, the first right hinge member 6, and the second right hinge member 5 in this embodiment are existing hinge structures, and no deployment and retraction description is made here.

[0082] See Figure 2 As shown, in a specific example of this application, in this embodiment, two passive lock posts 12 are arranged in parallel on the inner side surface of the left hatch 1, and two corresponding active lock hooks 11 are arranged on the inner side surface of the right hatch 2. During actual use, when the left hatch 1 and the right hatch 2 are closed, the active lock hook 11 cooperates with the passive lock post 12, so that the active lock hook 11 locks the passive lock post 12, realizing the locking of the left hatch 1 and the right hatch 2.

[0083] See Figure 3 As shown, it should be noted that in this embodiment, a first left adjusting gasket is provided between the first left separation spring and the first left end cover, a first right gasket is provided between the first right separation spring and the first right end cover, a second left adjusting gasket 27 is provided between the second left separation spring 25 and the second left end cover 26, and a second right adjusting gasket is provided between the second right separation gasket and the second right end cover.

[0084] See Figure 3 As shown, when the left hatch 1 and the right hatch 2 are folded and pressed against the front frame 9 and the rear frame 10, the second left pressure plate 21 presses the second left ball head push rod 22, and the compression height of the second left separation spring 25 is d. Then the compression force of the second left separation spring 25 is:

[0085] F = F0 + kd

[0086] Similarly, the compression forces of the first left separation spring, the first right separation spring and the second right separation spring can be known.

[0087] By increasing or decreasing the second left adjusting gasket 27, the pre-tightening force F0 of the second left separation spring 25 can be adjusted, so as to adjust the compression force F of the second left separation spring 25.

[0088] When the central locking mechanism is unlocked, the driving torque of the second left separation spring 25 on the second hinge of the left hatch 1 is:

[0089] M = Fm sinθ

[0090] Similarly, the driving torques of the first left separation spring, the first right separation spring and the second right separation spring can be known.

[0091] Since the first separation spring mechanism and the second separation spring mechanism are near the joint of the left hatch 1 and the right hatch 2, m is larger, M is relatively large, and the unfolding driving ability is stronger.

[0092] See Figure 4 As shown, the left unfolding and folding device drives the left hatch 1 to unfold or fold, and the right unfolding and folding device drives the right hatch 2 to unfold or fold, so that the left hatch 1 and the right hatch 2 stop moving when folded to a certain angle, and rely on the central locking mechanism to tighten the left hatch 1 and the right hatch 2 until they are folded and locked. During this process, the first left bent arm link is locked by the self-aligning torque of the first left drive assembly, the second left bent arm link 33 is locked by the self-aligning torque of the second left drive assembly 32, the first right bent arm link is locked by the self-aligning torque of the first right drive assembly, and the second right bent arm link is locked by the self-aligning torque of the second right drive assembly. The first left auxiliary spring, the second left auxiliary spring 37, the first right auxiliary spring and the second right auxiliary spring are compressed, and the compression length is d'. Then the compression force is:

[0093] F' = F0' + k'd'

[0094] By increasing or decreasing the second left auxiliary adjusting gasket 36, the pre-tightening force F0' of the second left auxiliary spring 37 can be adjusted, so as to adjust the compression force F' of the second auxiliary spring; Similarly,

[0095] After the central locking mechanism is unlocked, the torques of the first left auxiliary spring on the first left hinge member 4 of the left hatch 1, the second left auxiliary spring 37 on the second left hinge member 3 of the left hatch 1, the first right auxiliary spring on the first right hinge member 6 of the right hatch 2, and the second right auxiliary spring on the second right hinge member 5 of the right hatch 2 are all:

[0096] Adjust

[0097] M' = F'm'sinβ

[0098] When the hatch structure is locked by the central locking mechanism, the first left pressure plate on the left hatch 1 and the second left pressure plate 21 respectively press the first left separation spring and the second left separation spring 25, and the first right pressure plate and the second right pressure plate 46 on the right hatch 2 respectively press the first right separation spring and the second right separation spring, so that the first left separation spring, the second left separation spring 25, the first right separation spring and the second right separation spring generate compression forces; after the central locking mechanism is unlocked, the forces stored in the first left separation spring, the second left separation spring 25, the first right separation spring and the second right separation spring are used as the deployment driving forces, which can overcome the resistance between the left hatch 1 and the right hatch 2 and the front frame 9 and the rear frame 10 respectively.

[0099] The left deployment and retraction device drives the left hatch 1 to deploy or retract, and the right deployment and retraction device drives the right hatch 2 to deploy or retract, so that when the left hatch 1 and the right hatch 2 are retracted to a certain angle, the movement stops, and the left hatch 1 and the right hatch 2 are tightened until they are locked by relying on the central locking mechanism. At this time, the first left auxiliary spring, the second left auxiliary spring 37, the first right auxiliary spring and the second right auxiliary spring are compressed and store compression forces; after the central locking mechanism is unlocked, the forces stored in the first left auxiliary spring, the second left auxiliary spring 37, the first right auxiliary spring and the second right auxiliary spring are used as the deployment driving forces, which can assist the first separation spring mechanism and the second separation spring mechanism to overcome the resistance between the left hatch 1 and the right hatch 2 and the front frame 9 and the rear frame 10 respectively.

[0100] The space hatch deployment device in the present invention has the advantages of multiple redundant designs and high reliability.

[0101] The specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. Without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A novel deployment and retraction device for a space hatch, characterized by comprising: A frame body, a left hatch, a right hatch, a first hinge, a second hinge, a central locking mechanism, a left deployment device, a right deployment device, and a controller; One end of the first hinge is installed on the outer side surface of the frame body, and the other end is installed on the outer side surface of the left hatch; One end of the second hinge is installed on the outer side surface of the frame body, and the other end is installed on the outer side surface of the right hatch; The fixed end of the left deployment device is installed on the inner side surface of the frame body, and the moving end of the left deployment device is installed on the inner side surface of the left hatch, so that the left hatch rotates around the frame body to realize the opening or closing of the left hatch. The left deployment device has a left auxiliary device for assisting in opening the left hatch; The fixed end of the right deployment device is installed on the inner side surface of the frame body, and the moving end of the right deployment device is installed on the inner side surface of the right hatch, so that the right hatch rotates around the frame body to realize the opening or closing of the right hatch. The right deployment device has a right auxiliary device for assisting in opening the right hatch; The central locking mechanism includes a passive locking post provided on the inner side surface of the left hatch and an active locking hook provided on the inner side surface of the right hatch; The controller is electrically connected to the left deployment device and the right deployment device to drive the left deployment device and the right deployment device to move; the left deployment device includes a first left deployment mechanism and a second left deployment mechanism; The first left deployment mechanism includes a first left drive assembly electrically connected to the controller, a first left bent arm link, and a first left link. The first left drive assembly electrically connected to the controller is fixedly installed on the inner side surface of the frame body. One end of the first left bent arm link is fixedly connected to the rotation output shaft of the first left drive assembly, and the other end is hinged to the right end of the first left link. The left end of the first left link is hinged to the inner side surface of the left hatch; The second left deployment mechanism includes a second left drive assembly electrically connected to the controller, a second left bent arm link, and a second left link. The second left drive assembly electrically connected to the controller is fixedly installed on the inner side surface of the frame body. One end of the second left bent arm link is fixedly connected to the rotation output shaft of the second left drive assembly, and the other end is hinged to the right end of the second left link. The left end of the second left link is hinged to the inner side surface of the left hatch; The right deployment device includes a first right deployment mechanism and a second right deployment mechanism; The first right deployment mechanism includes a first right drive assembly electrically connected to the controller, a first right bent arm link, and a first right link. The first right drive assembly electrically connected to the controller is fixedly installed on the inner side surface of the frame body. One end of the first right bent arm link is fixedly connected to the rotation output shaft of the first right drive assembly, and the other end is hinged to the left end of the first right link. The right end of the first right link is hinged to the inner side surface of the right hatch; The second right unfolding and folding mechanism includes a second right driving component electrically connected to the controller, a second right bent arm link, and a second right link. The second right driving component electrically connected to the controller is fixedly installed on the inner side surface of the frame body. One end of the second right bent arm link is fixedly connected to the rotating output shaft of the second right driving component, and the other end is hinged to the left end of the second right link. The right end of the second right link is hinged to the inner side surface of the right hatch door.

2. The novel unfolding and retracting device for a space hatch according to claim 1, characterized in that, The first left link includes a first left half link a and a first left half link b. The left end of the first left half link a is hinged to the inner side surface of the left hatch door. The right end of the first left half link b is hinged to the first left bent arm link. A first left auxiliary step is provided on the first left half link b. The second left link includes a second left half link a and a second left half link b. The left end of the second left half link a is hinged to the inner side surface of the left hatch door. The right end of the second left half link b is hinged to the second left bent arm link. A second left auxiliary step is provided on the second left half link b. The left auxiliary device includes a first left auxiliary mechanism installed on the first left unfolding and folding mechanism and a second left auxiliary mechanism installed on the second left unfolding and folding mechanism. The first left auxiliary mechanism includes a first left auxiliary sleeve, a first left auxiliary spring, a first left fastening nut, and a first left auxiliary adjusting gasket. The left side of the first left auxiliary sleeve is fixedly connected to the first left half link a. The first left auxiliary adjusting gasket is sleeved from the right end of the first left half link b onto the first left auxiliary step. The first left auxiliary spring is sleeved from the right end of the first left half link b onto the first left auxiliary adjusting gasket. The left end of the first left half link b extends into the first left auxiliary sleeve from the right side of the first left auxiliary sleeve and is fixed by the first left fastening nut. The second left auxiliary mechanism includes a second left auxiliary sleeve, a second left auxiliary spring, a second left fastening nut, and a second left auxiliary adjusting gasket. The left side of the second left auxiliary sleeve is fixedly connected to the second left half link a. The second left auxiliary adjusting gasket is sleeved from the right end of the second left half link b onto the second left auxiliary step. The second left auxiliary spring is sleeved from the right end of the second left half link b onto the second left auxiliary adjusting gasket. The left end of the second left half link b extends into the second left auxiliary sleeve from the right side of the second left auxiliary sleeve and is fixed by the second left fastening nut.

3. A novel deployment and retraction device for a space hatch according to claim 2, characterized in that, The first right link includes a first right half link a and a first right half link b. The right end of the first right half link a is hinged to the inner side surface of the right hatch door. The left end of the first right half link b is hinged to the first right bent arm link. A first right auxiliary step is provided on the first right half link b. The second right link includes a second right half link a and a second right half link b. The right end of the second right half link a is hinged to the inner side surface of the right hatch door. The left end of the second right half link b is hinged to the second right bent arm link. A second right auxiliary step is provided on the second right half link b. The right auxiliary device includes a first right auxiliary mechanism installed on the first right deployment and retraction mechanism and a second right auxiliary mechanism installed on the second right deployment and retraction mechanism; The first right auxiliary mechanism includes a first right auxiliary sleeve, a first right auxiliary spring, a first right fastening nut, and a first right auxiliary adjustment gasket. The left side of the first right auxiliary sleeve is fixedly connected to the first right half link a and fixed by the first right fastening nut. The first right auxiliary adjustment gasket is sleeved onto the first right auxiliary step from the right end of the first right half link b. The first right auxiliary spring is sleeved onto the first right auxiliary adjustment gasket from the right end of the first right half link b. The right end of the first right half link b extends into the first right auxiliary sleeve from the left side of the first right auxiliary sleeve; The second right auxiliary mechanism includes a second right auxiliary sleeve, a second right auxiliary spring, a second right fastening nut, and a second right auxiliary adjustment gasket. The left side of the second right auxiliary sleeve is fixedly connected to the second right half link a. The second right auxiliary adjustment gasket is sleeved onto the second right auxiliary step from the right end of the second right half link b. The second right auxiliary spring is sleeved onto the second right auxiliary adjustment gasket from the right end of the second right half link b. The right end of the second right half link b extends into the second right auxiliary sleeve from the right side of the second right auxiliary sleeve and is fixed by the second right fastening nut.

4. A novel deployment and retraction device for a space hatch according to claim 1, characterized in that, It further includes a support device, and the support device includes a first support assembly and a second support assembly; The first support assembly includes a first separation spring mechanism fixed to the inner side surface of the frame body, a first left pressing plate, and a first right pressing plate. The first left pressing plate for cooperating with the first separation spring mechanism is fixedly installed on the inner side surface of the left hatch, and the first right pressing plate for cooperating with the first separation spring mechanism is installed on the inner side surface of the right hatch; The second support assembly includes a second separation spring mechanism fixed to the inner side surface of the frame body, a second left pressing plate, and a second right pressing plate. The second left pressing plate for cooperating with the second separation spring mechanism is fixedly installed on the inner side surface of the left hatch, and the second right pressing plate for cooperating with the second separation spring mechanism is installed on the inner side surface of the right hatch.

5. The novel deployment and retraction device for a space hatch according to claim 4, characterized in that, The first separation spring mechanism includes a first bearing plate, a first left separation mechanism, and a first right separation mechanism; The first bearing plate is fixedly installed on the inner side surface of the frame body, and the first bearing plate is provided with a first left mounting hole and a first right mounting hole; The first left separating mechanism includes a first left sleeve, a first left bearing, a first left ball head push rod, a first left separating spring, a first left end cover, and a first left fixing stud. The top of the first left sleeve is provided with a first upper left outer flange, and at least two first upper left screw holes are provided on the first upper left outer flange. The bottom of the first left sleeve is provided with a first lower left outer flange, and at least two first lower left screw holes are provided on the first lower left outer flange. The first left sleeve is placed in the first left mounting hole such that the lower surface of the first upper left outer flange contacts the upper surface of the first bearing plate. The first left ball head push rod is arranged in the first left sleeve, and the first left bearing is sleeved on the first left ball head push rod and is located within the first left sleeve. A first left placement groove is provided at the bottom of the first left ball head push rod. The first left end cover covers the bottom of the first left sleeve, and a first left screw passes through the end cover and enters the first lower left screw hole to fix the first left end cover to the first lower left outer flange. The upper surface of the first left end cover has a first left convex rod extending into the first left placement groove. The first left separating spring is sleeved on the first left convex rod, and the bottom of the first left separating spring contacts the upper surface of the first left end cover, and the top of the first left separating spring contacts the bottom of the first left placement groove. The first right separating mechanism includes a first right sleeve, a first right bearing, a first right ball head push rod, a first right separating spring, a first right end cover, and a first right fixing stud. The top of the first right sleeve is provided with a first upper right outer flange, and at least two first upper right screw holes are provided on the first upper right outer flange. The bottom of the first right sleeve is provided with a first lower right outer flange, and at least two first lower right screw holes are provided on the first lower right outer flange. The first right sleeve is placed in the first right mounting hole such that the lower surface of the first upper right outer flange contacts the upper surface of the first bearing plate. The first right ball head push rod is arranged in the first right sleeve, and the first right bearing is sleeved on the first right ball head push rod and is located within the first right sleeve. A first right placement groove is provided at the bottom of the first right ball head push rod. The first right end cover covers the bottom of the first right sleeve, and a first right screw passes through the end cover and enters the first lower right screw hole to fix the first right end cover to the first lower right outer flange. The upper surface of the first right end cover has a first right convex rod extending into the first right placement groove. The first right separating spring is sleeved on the first right convex rod, and the bottom of the first right separating spring contacts the upper surface of the first right end cover, and the top of the first right separating spring contacts the bottom of the first right placement groove.

6. A novel deployment and retraction device for a space hatch according to claim 4 or 5, characterized in that, The second separating spring mechanism includes a second bearing plate, a second left separating mechanism, and a second right separating mechanism; The second bearing plate is fixedly installed on the inner side surface of the frame body, and a second left mounting hole and a second right mounting hole are provided on the second bearing plate; The second left separating mechanism includes a second left sleeve, a second left bearing, a second left ball head push rod, a second left separating spring, a second left end cover and a second left fixing stud. The top of the second left sleeve is provided with a second upper left outer flange, and at least two second upper left screw holes are provided on the second upper left outer flange. The bottom of the second left sleeve is provided with a second lower left outer flange, and at least two second lower left screw holes are provided on the second lower left outer flange. The second left sleeve is placed in the second left mounting hole, so that the lower surface of the second upper left outer flange contacts the upper surface of the second bearing plate. The second left ball head push rod is arranged in the second left sleeve. The second left bearing is sleeved on the second left ball head push rod and is located in the second left sleeve. A second left placement groove is arranged at the bottom of the second left ball head push rod. The second left end cover covers the bottom of the second left sleeve, and a second left screw passes through the end cover and enters the second lower left screw hole to fix the second left end cover on the second lower left outer flange. The upper surface of the second left end cover has a second left convex rod extending into the second left placement groove. The second left separating spring is sleeved on the second left convex rod, and the bottom of the second left separating spring contacts the upper surface of the second left end cover, and the top of the second left separating spring contacts the bottom of the second left placement groove; The second right separating mechanism includes a second right sleeve, a second right bearing, a second right ball head push rod, a second right separating spring, a second right end cover and a second right fixing stud. The top of the second right sleeve is provided with a second upper right outer flange, and at least two second upper right screw holes are provided on the second upper right outer flange. The bottom of the second right sleeve is provided with a second lower right outer flange, and at least two second lower right screw holes are provided on the second lower right outer flange. The second right sleeve is placed in the second right mounting hole, so that the lower surface of the second upper right outer flange contacts the upper surface of the second bearing plate. The second right ball head push rod is arranged in the second right sleeve. The second right bearing is sleeved on the second right ball head push rod and is located in the second right sleeve. A second right placement groove is arranged at the bottom of the second right ball head push rod. The second right end cover covers the bottom of the second right sleeve, and a second right screw passes through the end cover and enters the second lower right screw hole to fix the second right end cover on the second lower right outer flange. The upper surface of the second right end cover has a second right convex rod extending into the second right placement groove. The second right separating spring is sleeved on the second right convex rod, and the bottom of the second right separating spring contacts the upper surface of the second right end cover, and the top of the second right separating spring contacts the bottom of the second right placement groove.

7. A novel deployment and retraction device for a space hatch according to claim 1, characterized in that, The frame body includes a front frame, a rear frame, a left cross beam and a right cross beam. One end of the left cross beam is fixedly connected to the front frame, and the other end is fixedly connected to the rear frame. One end of the right cross beam is fixedly connected to the front frame, and the other end is fixedly connected to the rear frame.

8. A novel deployment and retraction device for a space hatch according to claim 7, characterized in that, The controller is installed on the inner side surface of the front frame or the inner side surface of the rear frame.

Images