A three-stage sleeve-type deployment arm timing release deployment device

Abstract

This invention provides a three-stage sleeve-type deployable arm time-release deployment device, belonging to the technical field of variable structure space remote sensors. This three-stage sleeve-type deployable arm time-release deployment device includes a synchronous drive device, on one side of which is arranged a drive pulley mechanism, a sleeve component, a deployment and retraction component, and a time-release mechanism. The three-stage sleeve-type deployable arm time-release deployment device of this invention has a simple structure and does not present significant technical obstacles in driving, control, and manufacturing due to the increase in the length of the sleeve-type deployable arm. The drive mechanism achieves the deployment of the sleeve-type deployable arm through a pulley system, requiring only a single motor for control, making it convenient to use, highly expandable, and without limitations on the axial dimension of a single-stage sleeve-type deployable arm. Using the time-release mechanism, the sleeve-type deployable arm can be deployed stage by stage in a preset sequence, reducing the output power of the drive device and lowering the impact during deployment.

Description

Technical Field

[0001] This invention relates to the field of variable structure space remote sensor technology, and more specifically, to a three-stage sleeve-type deployment arm timing release deployment device. Background Technology

[0002] Currently, competition among nations in the space domain is intensifying. As a crucial component of space exploration, the space telescope, solar panel, and other key deployment equipment rely heavily on the space telescope's deployable arm, a key research focus for many countries. The working principle of the telescope-type deployable arm involves multi-stage folding and retracting into the fairing envelope before launch. After entering the predetermined orbit, it deploys via a drive mechanism to support the space payload. However, since the beginning of the 21st century, with the further development of space exploration, various space probes have made significant progress in performance, and the size and precision of these probes have also increased. This has placed higher demands on the strength, stiffness, dimensions, and other specifications of the space telescope-type deployable arm.

[0003] Sleeve-type deployable arms can be categorized into various types based on their drive mechanism, including rope-driven, screw-driven, lever-driven, and gear-driven reciprocating drives. Among these, rope-driven deployment is widely used due to its advantages such as good deployment synchronization, strong impact resistance, simple structure, high deployment accuracy, and light weight. However, as sleeve-type deployable arms develop towards larger sizes, higher rigidity, and higher strength, the impact generated during deployment and the dynamic response during deployment cannot be ignored. Therefore, it is necessary to propose a novel drive deployment device to achieve staged deployment of the sleeve-type deployable arm, thereby reducing the impact during deployment and optimizing the dynamic characteristics of the deployment process. Summary of the Invention

[0004] To overcome the above deficiencies, the present invention provides a three-stage sleeve-type sequential release deployment device for deploying arms that overcomes or at least partially solves the above technical problems.

[0005] This invention is implemented as follows:

[0006] This invention provides a three-stage sleeve-type sequential release deployment device for an unfolding arm, including a synchronous drive device. One side of the synchronous drive device is provided with a drive pulley mechanism, a sleeve component, an unfolding and retracting component, and a sequential release mechanism.

[0007] The synchronous drive device includes a bottom connecting base, a winding device is installed at the top of the bottom connecting base, a drive motor is fixedly installed on one side of the winding device, the drive motor is installed to the bottom connector by bolts, an anti-detachment wheel and a pressure wheel are fixedly installed at the top of the bottom connecting base, and a guide wheel is also installed at the top of the bottom connecting base.

[0008] The winding device includes a winding wheel bracket and a winding drum. The output end of the drive motor is connected to the winding drum via a flat key. The winding drum contains six winding slots, each slot having a rope end connection hole in the middle. The winding drum is rotatably installed inside the winding wheel bracket. The winding drum and the drive motor are connected via a flat key. The winding wheel bracket is connected to the bottom connecting seat via bolts.

[0009] In a preferred embodiment, the sleeve includes a third-stage sleeve arm, a second-stage sleeve arm, and a first-stage sleeve arm. The bottom of the third-stage sleeve arm is connected to the bottom connecting seat via a circumferential connecting hole and a bolt. The second-stage sleeve arm has a larger diameter than the third-stage sleeve arm and is located on the outside of the third-stage sleeve arm. The first-stage sleeve arm has a larger diameter than the second-stage sleeve arm and is located on the outside of the second-stage sleeve arm.

[0010] In a preferred embodiment, the drive pulley mechanism includes three sets of continuous pulley groups, which are distributed circumferentially along the sleeve-type unfolding arm. Each continuous pulley group includes a third-stage sleeve pulley, a second-stage bottom sleeve pulley, and a second-stage top sleeve pulley. The third-stage sleeve pulley is located at the top of the third-stage sleeve arm and is bolted to it. The rotation axis of the third-stage sleeve pulley is parallel to the tangent direction of the outer edge of the third-stage sleeve arm. The second-stage bottom sleeve pulley is located at the bottom of the second-stage sleeve arm and is bolted to it. The axial direction of the second-stage bottom sleeve pulley is parallel to the axial direction of the third-stage sleeve pulley. The second-stage top sleeve pulley is located at the top of the second-stage sleeve arm and is bolted to it. The axial direction of the second-stage top sleeve pulley is perpendicular to the axial direction of the second-stage bottom sleeve pulley.

[0011] In a preferred embodiment, the unfolding and retracting component includes an unfolding rope and a retracting rope. There are three unfolding ropes, all wound around a winding drum, with one end of the rope fixed in a rope end connection hole. One unfolding rope is led out through the guide wheel, anti-detachment wheel, and clamping wheel to a set of continuous pulleys, passing over the three-stage sleeve pulleys. The bottom pulley of the second-stage sleeve and the top pulley of the second-stage sleeve are connected and fixed to the bottom of the first-stage sleeve arm.

[0012] In a preferred embodiment, there are three timing release mechanisms, which are evenly distributed along the circumference of the secondary sleeve arm. Each timing release mechanism includes a limiting rod, a trigger end, and an unlocking assembly. The limiting rod is a long metal rod, located at the top of the tertiary sleeve arm and bolted to it. The trigger end is a wedge-shaped block, with its thicker end near the bottom of the primary sleeve arm. The trigger end is located at the bottom of the primary sleeve arm and bolted to it. The unlocking assembly is located at the top of the secondary sleeve arm and bolted to it.

[0013] In a preferred embodiment, the unlocking assembly includes a locking element, a locking pin, a locking spring, an upper unlocking block, a lower unlocking block, an unlocking linkage, a reset spring, and an unlocking bracket. The unlocking bracket is an irregularly shaped structural component with a locking element connecting seat containing a circular hole at the upper end and an upper unlocking block groove and a lower unlocking block groove at the lower end. The upper unlocking block groove has a circular limiting hole at its top and connecting plates on both sides for connecting to the secondary sleeve arm via bolts.

[0014] In a preferred embodiment, the locking component comprises a locking component body and two end caps. The locking component body is a long rod with a hollow structure at its center. The upper end of the hollow structure is a rectangular space, and the lower end is a cylindrical cavity. The diameter of the cylindrical cavity at the lower end of the locking component body corresponds to the diameter of the circular limiting hole at the top of the upper unlocking block groove. The end caps are provided with bearings for cooperating with the locking component connecting seat at the upper end of the unlocking bracket. The two end caps are respectively disposed on both sides of the locking component body and are connected to the locking component body by bolts.

[0015] In a preferred embodiment, the locking pin is a T-shaped metal block with a rectangular upper end and a cylindrical lower end. The diameter of the cylindrical lower end of the locking pin is the same as the diameter of the circular limiting hole at the top of the upper unlocking block groove. The locking pin is installed in the cavity of the locking component body, and the locking spring is installed between the locking component body and the locking pin.

[0016] In a preferred embodiment, the upper unlocking block is a slider structure with a cylindrical structure at its top. The diameter of the cylindrical structure is the same as the diameter of the circular limiting hole at the top of the upper unlocking block groove. Bearing structures are provided on both sides of the upper unlocking block. The upper unlocking block is placed in the unlocking block groove on the unlocking bracket and can move up and down along the groove. The lower unlocking block is a slider structure with bearing structures on both sides. The lower unlocking block is placed in the lower unlocking block groove on the unlocking bracket and can move left and right along the groove.

[0017] In a preferred embodiment, there are two unlocking links, each consisting of a long rod with circular holes at both ends. The two unlocking links are placed on both sides of the upper unlocking block, with one end engaging with the upper unlocking block bearing and rotating around it, and the other end engaging with the lower unlocking block bearing and rotating around it. The reset spring is placed in the lower unlocking block groove of the unlocking bracket and is installed between the unlocking bracket and the lower unlocking block.

[0018] The present invention provides a three-stage sleeve-type sequential release deployment device for a deployable arm, the advantages of which include:

[0019] 1. The three-stage sleeve-type deployable arm sequential release deployable device of the present invention has a simple structure and does not have obvious technical obstacles in driving, control, and manufacturing due to the increase in the length of the sleeve-type deployable arm; the drive mechanism realizes the deployment of the sleeve-type deployable arm through a pulley system, and only a single motor is needed to control the deployment of the sleeve-type deployable arm, which is convenient to use, has good expandability, and has no limitation on the axial dimension of the single-stage sleeve-type deployable arm; using the sequential release mechanism, the sleeve-type deployable arm can be deployed step by step in a preset order, reducing the output power of the drive device and reducing the impact during the deployment process.

[0020] 2. The three-stage sleeve-type sequential release deployment device of the present invention is not only applicable to the field of variable structure space telemetry, but also has high reference and learning value in the fields of engineering machinery devices and large space construction. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of a three-stage sleeve-type sequential release deployment device for deploying arms, provided in an embodiment of the present invention, with the sleeve-type deploying arm retracted.

[0023] Figure 2 A cross-sectional view along section AA of a three-stage sleeve-type sequential release deployment device provided in an embodiment of the present invention;

[0024] Figure 3 A synchronous drive device for a three-stage sleeve-type sequential release and deployment device for an outrigger arm, and a bottom connecting seat supporting the synchronous drive device, are provided in this embodiment of the invention.

[0025] Figure 4 Bottom view of a synchronous drive device for a three-stage sleeve-type unfolding arm sequential release unfolding device and a bottom connecting seat supporting the synchronous drive device, provided in an embodiment of the present invention;

[0026] Figure 5 A three-stage sleeve-type deployable arm timing release deployable device drive pulley system is provided in an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the timing release mechanism of a three-stage sleeve-type deployment arm timing release deployment device provided in an embodiment of the present invention;

[0028] Figure 7This is a schematic diagram of the installation of the trigger end of the timing release mechanism of a three-stage sleeve-type deployment arm timing release deployment device provided in an embodiment of the present invention;

[0029] Figure 8 A schematic diagram of the timing release mechanism unlocking component of a three-stage sleeve-type deployable arm timing release deployable device provided in an embodiment of the present invention;

[0030] Figure 9 This invention provides a schematic diagram of the installation of the locking component of the timing release mechanism of a three-stage sleeve-type deployment arm timing release deployment device.

[0031] Figure 10 A cross-sectional view along section BB of a three-stage sleeve-type deployable arm timing release deployable device timing release mechanism unlocking component provided in an embodiment of the present invention;

[0032] Figure 11 This invention provides a schematic diagram of the triggering and unlocking mechanism of a three-stage sleeve-type deploying arm timing release deploying device according to an embodiment of the present invention.

[0033] Figure 12 This is a schematic diagram of the deployment process of the sleeve-type deployable arm.

[0034] In the diagram: 1. Synchronous drive device; 101. Drive motor; 102. Winder; 1021. Winding wheel bracket; 1022. Winding drum; 103. Guide wheel; 104. Anti-detachment wheel; 105. Pressure wheel; 106. Bottom connecting seat; 2. Drive pulley mechanism; 201. Third-stage sleeve pulley; 202. Second-stage sleeve bottom pulley; 203. Second-stage sleeve top pulley; 3. Sleeve component; 301. Third-stage sleeve arm; 302. Second-stage sleeve arm; 303. First-stage... 4. Sleeve arm; 5. Deployment and retraction components; 6. Deployment rope; 7. Retraction rope; 8. Sequential release mechanism; 9. Limiting rod; 10. Trigger end; 11. Unlocking component; 12. Locking element; 13. Locking element body; 14. End cap; 15. Locking pin; 16. Locking spring; 17. Upper unlocking block; 18. Lower unlocking block; 19. Unlocking bracket; 20. Unlocking linkage; 20. Reset spring. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Reference Figures 1-12 The present invention provides a technical solution: a three-stage sleeve-type unfolding arm sequential release unfolding device, including a synchronous drive device 1, and a drive pulley mechanism 2, a sleeve component 3, an unfolding and retracting component 4 and a sequential release mechanism 5 are provided on one side of the synchronous drive device 1;

[0037] The synchronous drive device 1 includes a bottom connecting seat 106, a winder 102 is installed on the top of the bottom connecting seat 106, a drive motor 101 is fixedly installed on one side of the winder 102, the drive motor 101 is installed to the bottom connecting seat 106 by bolts, an anti-detachment wheel 104 and a pressure wheel 105 are fixedly installed on the top of the bottom connecting seat 106, and a guide wheel 103 is also installed on the top of the bottom connecting seat 106.

[0038] The winder 102 includes a winding wheel bracket 1021 and a winding drum 1022. The output end of the drive motor 101 is connected to the winding drum 1022 via a key. The winding drum 1022 contains six winding slots, each with a rope end connection hole in the center. The winding drum 1022 is rotatably mounted inside the winding wheel bracket 1021. The winding drum 1022 and the drive motor 101 are connected via a key. The winding wheel bracket 1021 is bolted to the bottom connecting seat 106. Three sets of unfolding rope guide wheel systems are mounted on the bottom connecting seat 106 and are located on the same side as the winder 102. Each set of unfolding rope guide wheel systems includes two guide wheels 103, one anti-derailment wheel 104, and one clamping wheel 105. One of the two guide wheels 103 is located near the winder 102, and the other is located away from the winder 102. The anti-detachment wheel 104 and the pressure wheel 105 are located between the two guide wheels 103. The anti-detachment wheel 104 is located on the side closer to the winder 102, and the pressure wheel 105 is located on the end away from the winder 102.

[0039] See Figure 1 , Figure 2 As shown:

[0040] The sleeve component 3 includes a third-stage sleeve arm 301, a second-stage sleeve arm 302, and a first-stage sleeve arm 303. The bottom of the third-stage sleeve arm 301 is connected to the bottom connecting seat 106 via a circumferential connecting hole and a bolt. The second-stage sleeve arm 302 has a larger diameter than the third-stage sleeve arm 301 and is located on the outside of the third-stage sleeve arm 301. The first-stage sleeve arm 303 has a larger diameter than the second-stage sleeve arm 302 and is located on the outside of the second-stage sleeve arm 302.

[0041] See Figure 2 , Figure 5 As shown:

[0042] The drive pulley mechanism 2 includes three sets of continuous pulley groups, which are distributed circumferentially along the sleeve-type unfolding arm. Each continuous pulley group includes a third-stage sleeve pulley 201, a second-stage bottom sleeve pulley 202, and a second-stage top sleeve pulley 203. The third-stage sleeve pulley 201 is located at the top of the third-stage sleeve arm 301 and is bolted to the top of the third-stage sleeve arm 301. The rotation axis of the third-stage sleeve pulley 201 is parallel to the tangent direction of the outer edge of the third-stage sleeve arm 301. The second-stage bottom sleeve pulley 202 is located at the bottom of the second-stage sleeve arm 302 and is bolted to the second-stage sleeve arm 302. The axial direction of the second-stage bottom sleeve pulley 202 is parallel to the axial direction of the third-stage sleeve pulley 201. The second-stage top sleeve pulley 203 is located at the top of the second-stage sleeve arm 302 and is bolted to the second-stage sleeve arm 302. The axial direction of the second-stage top sleeve pulley 203 is perpendicular to the axial direction of the second-stage bottom sleeve pulley 202.

[0043] The unfolding and retracting component 4 includes an unfolding rope 401 and a retracting rope 402. There are three unfolding ropes 401, all of which are wound on the winding drum 1022, and one end of the rope is fixed in the rope end connection hole. One unfolding rope 401 is led out through the guide wheel 103, the anti-detachment wheel 104, and the pressing wheel 105 to a set of continuous pulleys, and passes over the third-stage sleeve pulley 201, the second-stage sleeve bottom pulley 202, and the second-stage sleeve top pulley 203 respectively, and is connected and fixed to the bottom of the first-stage sleeve arm 303.

[0044] See Figures 6 to 9 As shown:

[0045] There are three timing release mechanisms 5, which are evenly distributed around the secondary sleeve arm 302. Each timing release mechanism 5 includes a limiting rod 501, a trigger end 502, and an unlocking component 503. The limiting rod 501 is a long metal rod, located at the top of the tertiary sleeve arm 301 and connected to it by bolts. The trigger end 502 is a wedge-shaped block, with its thicker end close to the bottom of the primary sleeve arm 303. The trigger end 502 is located at the bottom of the primary sleeve arm 303 and connected to it by bolts. The unlocking component 503 is located at the top of the secondary sleeve arm 302 and connected to it by bolts.

[0046] See Figures 9 to 11 As shown:

[0047] The unlocking assembly 503 includes a locking component 5031, a locking pin 5032, a locking spring 5033, an upper unlocking block 5034, a lower unlocking block 5035, an unlocking connecting rod 5037, a reset spring 5038, and an unlocking bracket 5036. The unlocking bracket 5036 is an irregularly shaped structural component. The upper end is provided with a locking component connecting seat with a circular hole, and the lower end is provided with an upper unlocking block groove and a lower unlocking block groove. The top of the upper unlocking block groove is provided with a circular limiting hole, and connecting plates are provided on both sides for connecting with the secondary sleeve arm 302 by bolts.

[0048] The locking component 5031 includes a locking component body 5031a and two end caps 5031b. The locking component body 5031a is a long rod with a T-shaped hollow structure at its center. The upper end of the T-shaped hollow structure is a rectangular space, and the lower end is a cylindrical cavity. The diameter of the lower cylindrical cavity of the locking component body 5031a corresponds to the diameter of the circular limiting hole at the top of the upper unlocking block slide groove. The end caps 5031b are equipped with bearings for cooperating with the locking component connecting seat at the upper end of the unlocking bracket 5036. The two end caps 5031b are respectively located on both sides of the locking component body 5031a and are connected to the locking component body 5031a by bolts.

[0049] The locking pin 5032 is a T-shaped metal block. The upper end of the locking pin 5032 is rectangular and the lower end is cylindrical. The diameter of the lower cylindrical part of the locking pin 5032 is the same as the diameter of the circular limiting hole at the top of the upper unlocking block slide groove. The locking pin 5032 is installed in the cavity of the locking body 5031a. The locking spring 5033 is installed between the locking body 5031a and the locking pin 5032.

[0050] The upper unlocking block 5034 is a slider structure with a cylindrical structure at the top. The diameter of the cylindrical structure is the same as the diameter of the circular limiting hole at the top of the upper unlocking block groove. Bearing structures are provided on both sides of the upper unlocking block 5034. The upper unlocking block 5034 is placed in the unlocking block groove on the unlocking bracket 5036 and can move up and down along the groove. The lower unlocking block 5035 is a slider structure with bearing structures on both sides. The lower unlocking block 5035 is placed in the lower unlocking block groove of the unlocking bracket 5036 and can move left and right along the groove.

[0051] There are two unlocking linkages 5037, which are long rods with circular holes at both ends. The two unlocking linkages 5037 are placed on both sides of the upper unlocking block 5034. One end of the linkage engages with the bearing of the upper unlocking block 5034 and can rotate around the bearing of the upper unlocking block 5034. The other end engages with the bearing of the lower unlocking block 5035 and can rotate around the bearing of the lower unlocking block 5035. The return spring 5038 is placed in the lower unlocking block groove of the unlocking bracket 5036 and is installed between the unlocking bracket 5036 and the lower unlocking block 5035.

[0052] Specifically, the working process or working principle of this three-stage sleeve-type sequential release deployment device is as follows: In the initial state, the sleeve component 3 is retracted, and the tops of the first-stage sleeve arm 303, the second-stage sleeve arm 302, and the third-stage sleeve arm 301 are in the same plane. The locking component 5031 of the unlocking assembly 503 is in a straight state, with the end near the third-stage sleeve arm 301 positioned below the limiting rod 501. The drive motor 101 starts, driving the winding drum 1022 to rotate clockwise. At this time, the first-stage sleeve arm 303 unfolds along the axial direction of the first-stage sleeve arm 303 under the drive of the deployment rope 401. At this time, the second-stage sleeve arm 302 cannot move upward due to the restriction of the locking component 5031, thus realizing the sequential release of the first-stage sleeve arm 303.

[0053] When the first-stage sleeve arm 303 moves upward to the preset position, the trigger end 502 compresses the lower unlocking block 5035. The lower unlocking block 5035 moves inward along the lower unlocking block groove of the unlocking bracket 5036, driving the upper unlocking block 5034 to move upward along the upper unlocking block groove of the unlocking bracket 5036 via the unlocking connecting rod 5037. This compresses the locking pin 5032, causing it to move inward. When the locking pin 5032 is completely disengaged from the unlocking bracket 5036, the trigger end 502 moves upward, causing the locking element 5031 to deflect downward near the end of the third-stage sleeve arm 301, thereby disengaging from the limit rod 501 and unlocking the second-stage sleeve arm 302 and the third-stage sleeve arm 301. Driven by the unfolding rope 401, the second-stage sleeve arm 302 unfolds axially, realizing the sequential release of the second-stage sleeve arm 302 until all sleeve-type unfolding arms are fully unfolded.

[0054] When the sleeve 3 needs to be retracted, the drive motor 101 reverses, causing the winding drum 1022 to rotate counterclockwise, which in turn causes the winding rope 402 to wind back. The winding rope 402 causes the first-stage sleeve arm 303 to retract. When the top of the first-stage sleeve arm 303 contacts the top of the second-stage sleeve arm 302, it causes the second-stage sleeve arm 302 to retract, thereby realizing the retraction of the entire sleeve-type unfolding arm.

Claims

1. A three-stage sleeve-type sequential release deployment device for a deployable arm, characterized in that, It includes a synchronous drive device (1), and one side of the synchronous drive device (1) is provided with a drive pulley mechanism (2), a sleeve (3), an unfolding and retracting component (4) and a timing release mechanism (5). The synchronous drive device (1) includes a bottom connecting seat (106), a winder (102) is installed on the top of the bottom connecting seat (106), a drive motor (101) is fixedly installed on one side of the winder (102), the drive motor (101) is installed to the bottom connecting seat (106) by bolts, an anti-detachment wheel (104) and a pressure wheel (105) are fixedly installed on the top of the bottom connecting seat (106), and a guide wheel (103) is also installed on the top of the bottom connecting seat (106). The winding device (102) includes a winding wheel bracket (1021) and a winding drum (1022). The output end of the drive motor (101) is connected to the winding drum (1022) via a flat key. The winding drum (1022) includes six winding slots, each slot having a rope end connection hole in the middle. The winding drum (1022) is rotatably mounted inside the winding wheel bracket (1021). The winding drum (1022) is connected to the drive motor (101) via a flat key. The winding wheel bracket (1021) is connected to the bottom connecting seat (106) via bolts. The sleeve component (3) includes a third-stage sleeve arm (301), a second-stage sleeve arm (302) and a first-stage sleeve arm (303). The bottom of the third-stage sleeve arm (301) is connected to the bottom connecting seat (106) by a circumferential connecting hole and a bolt. The second-stage sleeve arm (302) has a larger diameter than the third-stage sleeve arm (301) and is located on the outside of the third-stage sleeve arm (301). The first-stage sleeve arm (303) has a larger diameter than the second-stage sleeve arm (302) and is located on the outside of the second-stage sleeve arm (302). The drive pulley mechanism (2) includes three sets of continuous pulley groups, which are distributed circumferentially along the sleeve-type unfolding arm. Each continuous pulley group includes a third-stage sleeve pulley (201), a second-stage bottom sleeve pulley (202), and a second-stage top sleeve pulley (203). The third-stage sleeve pulley (201) is located at the top of the third-stage sleeve arm (301) and is bolted to the top of the third-stage sleeve arm (301). The rotation axis of the third-stage sleeve pulley (201) is parallel to the tangent direction of the outer edge of the third-stage sleeve arm (301). The bottom pulley (202) of the secondary sleeve is located at the bottom of the secondary sleeve arm (302) and is bolted to the secondary sleeve arm (302). The axial direction of the bottom pulley (202) of the secondary sleeve is parallel to the axial direction of the tertiary sleeve pulley (201). The top pulley (203) of the secondary sleeve is located at the top of the secondary sleeve arm (302) and is bolted to the secondary sleeve arm (302). The axial direction of the top pulley (203) of the secondary sleeve is perpendicular to the axial direction of the bottom pulley (202) of the secondary sleeve. The unfolding and retracting component (4) includes an unfolding rope (401) and a retracting rope (402). There are three unfolding ropes (401), all of which are wound on the winding drum (1022), and one end of the rope is fixed in the rope end connection hole. One of the unfolding ropes (401) is led out through the guide wheel (103), the anti-detachment wheel (104), and the pressing wheel (105) to a set of continuous pulleys, and passes over the third-stage sleeve pulley (201). The second-stage sleeve bottom pulley (202) and the second-stage sleeve top pulley (203) are connected and fixed to the bottom of the first-stage sleeve arm (303). There are three timing release mechanisms (5), which are evenly distributed around the secondary sleeve arm (302). Each timing release mechanism (5) includes a limiting rod (501), a trigger end (502), and an unlocking component (503). The limiting rod (501) is a long metal rod, which is located at the top of the tertiary sleeve arm (301) and is bolted to the tertiary sleeve arm (301). The trigger end (502) is a wedge-shaped block, with its thicker end close to the bottom of the primary sleeve arm (303). The trigger end (502) is located at the bottom of the primary sleeve arm (303) and is bolted to the primary sleeve arm (303). The unlocking component (503) is located at the top of the secondary sleeve arm (302) and is bolted to the secondary sleeve arm (302). The unlocking assembly (503) includes a locking element (5031), a locking pin (5032), a locking spring (5033), an upper unlocking block (5034), a lower unlocking block (5035), an unlocking connecting rod (5037), a reset spring (5038), and an unlocking bracket (5036). The unlocking bracket (5036) is an irregularly shaped structural component. The upper end is provided with a locking element connecting seat with a circular hole, and the lower end is provided with an upper unlocking block groove and a lower unlocking block groove. The top of the upper unlocking block groove is provided with a circular limiting hole, and connecting plates are provided on both sides for connecting with the secondary sleeve arm (302) by bolts.

2. The three-stage sleeve-type sequential release deployment device for deploying arms according to claim 1, characterized in that, The locking component (5031) includes a locking component body (5031a) and an end cap (5031b). There are two end caps (5031b). The locking component body (5031a) is a long rod with a T-shaped hollow structure at its center. The upper end of the T-shaped hollow structure is a rectangular space, and the lower end is a cylindrical cavity. The diameter of the cylindrical cavity at the lower end of the locking component body (5031a) corresponds to the diameter of the circular limiting hole at the top of the upper unlocking block groove. The end cap (5031b) is provided with a bearing for cooperating with the locking component connecting seat at the upper end of the unlocking bracket (5036). The two end caps (5031b) are respectively located on both sides of the locking component body (5031a) and are connected to the locking component body (5031a) by bolts.

3. The three-stage sleeve-type sequential release deployment device for deploying arms according to claim 2, characterized in that, The locking pin (5032) is a T-shaped metal block. The upper end of the locking pin (5032) is rectangular and the lower end is cylindrical. The diameter of the lower cylindrical part of the locking pin (5032) is the same as the diameter of the circular limiting hole at the top of the upper unlocking block groove. The locking pin (5032) is installed in the cavity of the locking body (5031a). The locking spring (5033) is installed between the locking body (5031a) and the locking pin (5032).

4. The three-stage sleeve-type sequential release deployment device for deploying arms according to claim 3, characterized in that, The upper unlocking block (5034) is a slider structure. A cylindrical structure is provided at the top of the slider. The diameter of the cylindrical structure is the same as the diameter of the circular limiting hole at the top of the upper unlocking block groove. Bearing structures are provided on both sides of the upper unlocking block (5034). The upper unlocking block (5034) is placed in the unlocking block groove on the unlocking bracket (5036) and can move up and down along the groove. The lower unlocking block (5035) is a slider structure. Bearing structures are provided on both sides of the lower unlocking block (5035). The lower unlocking block (5035) is placed in the lower unlocking block groove of the unlocking bracket (5036) and can move left and right along the groove.

5. The three-stage sleeve-type sequential release deployment device for deploying arms according to claim 4, characterized in that, There are two unlocking links (5037), which are long rods with circular holes at both ends. The two unlocking links (5037) are respectively placed on both sides of the upper unlocking block (5034). One end of the link engages with the bearing of the upper unlocking block (5034) and can rotate around the bearing of the upper unlocking block (5034). The other end engages with the bearing of the lower unlocking block (5035) and can rotate around the bearing of the lower unlocking block (5035). The reset spring (5038) is placed in the lower unlocking block groove of the unlocking bracket (5036) and is installed between the unlocking bracket (5036) and the lower unlocking block (5035).

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