Bionic 4D printing multi-factor triggering satellite locking and releasing device

Abstract

The invention discloses a bionic 4D printing multi-factor triggering satellite locking and releasing device, which belongs to the technical field of spaceflight and bionic 4D printing, and comprises an electromagnetic radiation prevention heat insulation shell, an upper shape memory bionic locking mechanism, a satellite buffering heat insulation fixing table, a lower shape memory bionic locking mechanism, a telescopic energy storage ejection mechanism and a rocket connecting base. The upper shape memory bionic locking mechanism is of an electrostrictive shape memory structure and is a first-stage locking and releasing mechanism of the satellite, locking grooves are evenly distributed in the satellite buffering and heat-insulating fixing table and are lower shape memory bionic locking mechanisms of the satellite, and the satellite is locked or separated from the satellite buffering and heat-insulating fixing table through magnetic shape memory T-shaped locking pieces evenly distributed on the lower portion of the satellite buffering and heat-insulating fixing table. The locking and releasing mechanism is a secondary locking and releasing mechanism of the satellite; telescopic energy storage ejection mechanisms are evenly distributed on the lower side of the satellite buffering heat insulation fixing table and composed of shape memory springs and shape memory electrostriction pieces, and the lower portions of the telescopic energy storage ejection mechanisms are connected with the lower end of the electromagnetic radiation prevention heat insulation shell. Response is fast, impact is small, and reliability is high.

Description

Technical Field

[0001] The present invention belongs to the field of bionic 4D printing and aerospace technology, and in particular relates to a bionic 4D printing multi-factor triggered satellite locking and releasing device. Background Art

[0002] As a traditional satellite locking and releasing device, the pyrotechnic locking and releasing mechanism is the most widely used in space locking and releasing mechanisms. However, with the increasing safety requirements for rocket and satellite launches in the in-orbit phase, especially in the context of the rapid development of microsatellites in the new era, the pyrotechnic locking and releasing mechanism has gradually exposed its limitations. The impact of its release device is large and may affect the separation posture of the satellite. For microsatellites, this impact force may cause damage to the precision parts of the microsatellites.

[0003] Shape memory polymer satellite locking and release devices are an advanced technology that has played a vital role in the satellite launch process in recent years; the main function of such devices is to provide and achieve high-stiffness locking to ensure the stability of the satellite during launch. When the satellite successfully enters orbit, such devices can complete stable and impact-free unlocking and release in orbit.

[0004] The main method is to add shape memory polymer components to the locking and releasing devices. The shape memory polymer composite material used is a fast-response memory material. When the satellite needs to be released, the locking and releasing devices can be automatically deformed by electric drive, magnetic drive, or heating drive. This can achieve small impact unlocking or even no impact unlocking of the satellite, avoiding damage to the satellite structure and function due to impact during the unlocking process, and ensuring the normal operation and use of the satellite after unlocking and release. Summary of the invention

[0005] In order to solve the problems of release impact force, non-repeatable locking and releasing faced by traditional satellite locking and releasing devices during use, a bionic 4D printed multi-factor triggered satellite locking and releasing device is proposed.

[0006] A bionic 4D printed multi-factor triggered satellite locking and releasing device, comprising:

[0007] The invention relates to an electromagnetic radiation-proof heat-insulating shell 1, an upper shape memory bionic locking mechanism 2, a satellite buffer heat-insulating fixing platform 3, a lower shape memory bionic locking mechanism 4, a telescopic energy storage ejection mechanism 5, and a rocket connection base 6, wherein: the satellite buffer heat-insulating fixing platform 3 is located in the electromagnetic radiation-proof heat-insulating shell 1, and the two are slidably connected; the upper shape memory bionic locking mechanism (2) is a lockable and release memory structure, which is integrally printed with the upper port of the electromagnetic radiation-proof heat-insulating shell 1; the satellite buffer heat-insulating fixing platform 3 is evenly distributed with lower shape memory bionic locking mechanisms. The satellite is locked or separated from the locking groove 401 of the shape memory bionic locking mechanism 4 through the shape memory T-shaped locking piece 402 of the lower shape memory bionic locking mechanism 4 uniformly distributed at the lower part thereof; the telescopic energy storage ejection mechanism 5 with the same structure uniformly distributed on the circumference of the lower side of the satellite buffer heat insulation fixed platform 3, the telescopic energy storage ejection mechanism 5 is composed of a spring 501 and a shape memory telescopic sheet 502, both of which are fixedly connected to the lower side of the satellite buffer heat insulation fixed platform 3 at their upper ends, and fixedly connected to the rocket connection base 6 at their lower ends. The upper shape memory telescopic energy storage mechanism 2 is a three-layer structure of "spring sheet shape", which is composed of a shape memory layer I 201, an insulating heat insulation layer 202, and a shape memory layer II 203. The shape memory layer I 201 and the shape memory layer II 203 are made of nickel-titanium memory alloy, and both are provided with electric heating wires and power supply circuit I on the outside, which will be extended when powered on and contracted to restore to the initial state when powered off and cooled.

[0008] The shape memory T-shaped locking piece 402 of the lower shape memory bionic locking mechanism 4 is composed of a support and a shape memory bending piece. The shape memory T-shaped locking piece 402 has two states, one is the shape memory bending piece bending upward state 402a and the other is the shape memory bending piece bending downward state 402b. The shape memory bending piece is located at the lower end of the T-shaped locking piece 402 and is in the shape of a strip, and is made of magneto-memory material. When positive and negative electric fields are added, the two ends of the strip-shaped shape memory bending piece will bend downward and upward.

[0009] The shape memory expansion piece 502 of the expansion energy storage ejection mechanism 5 is composed of alternately connected vertical short plates 502b and vertical long plates 502a, and both ends are vertical short plates 502b; the outside of the expansion energy storage ejection mechanism 502 is provided with a heating wire and a power supply circuit II, and when powered on for heating, the shape memory expansion piece 502 contracts and deforms into a multi-"Z" shape, compressing the shape memory spring 501; after power off and cooling, it returns to the initial vertical state;

[0010] The vertical short plate (502b) is printed along a horizontal path, and the vertical long plate (502a) is printed along a vertical path, and the horizontal and vertical paths are alternately printed to form an integrated telescopic energy storage ejection mechanism (5);

[0011] The power supply circuit I in the upper shape memory bionic locking mechanism 2 and the power supply circuit II in the telescopic energy storage ejection mechanism 5 are powered synchronously by the same power supply to ensure the synchronization of deformation and energy storage of the device.

[0012] The satellite buffer heat-insulating fixed platform 3 is a truncated platform on which shaft-connected pulleys 301 are evenly distributed. The pulleys 301 are all located in the slide rails of the columnar anti-electromagnetic radiation heat-insulating housing 1; and the surface of the pulleys 301 is provided with an anti-electromagnetic radiation heat-insulating coating.

[0013] Another object of the present invention is to provide a method for using a bionic 4D printed multi-factor triggered satellite locking and releasing device:

[0014] 1) Satellite locking: The shape memory layer II 203 of the upper shape memory bionic locking mechanism 2 is energized to bend downward, and the satellite enters for a locking operation. After cooling, it can be heated again to restore to its initial horizontal state. A positive magnetic field is applied to the shape memory bending sheet, and its two ends are bent upward 402a; the satellite is aligned with the locking groove 401 through the shape memory T-shaped locking piece 402 at the lower end and inserted, and then the reverse magnetic field is cut off or turned on to complete the secondary locking of the satellite relative to the satellite buffer insulation fixing platform 3;

[0015] 2) Energy storage for satellite ejection and release: The power supply circuit I in the shape memory bionic locking mechanism 2 and the power supply circuit II in the telescopic energy storage ejection mechanism 5 are powered synchronously by the same power supply, and the electric heating wire is heated. The shape memory telescopic sheet 502 of the telescopic energy storage ejection mechanism 5 shrinks and deforms into a multi-"Z" shape due to the heat, and at the same time, a downward force is applied to the spring 501 to store energy for satellite ejection and release;

[0016] 3) Unlocking and ejection release of the satellite: the power supply circuit I in the upper shape memory bionic locking mechanism 2 and the power supply circuit II in the telescopic energy storage ejection mechanism 5 are powered, and at the same time, a reverse magnetic field is applied to the shape memory T-shaped locking piece 402 of the shape memory bionic locking mechanism 4, and the shape memory layer I201 is energized to bend upward, providing a channel for the release of the satellite, and performing one unlocking. After cooling and reheating, it can be restored to the initial horizontal state; the shape memory T-shaped locking piece 402 is bent downward to become the downward bending shape 402b of the shape memory bending piece, and is separated from the locking groove 401 for a second unlocking; the shape memory telescopic piece 502 of the telescopic energy storage ejection mechanism 5 is energized to restore the initial vertical state, releasing the force of the shape memory spring 501, releasing the elastic potential energy to push the satellite upward, and when reaching a certain position, the satellite is separated from the satellite buffer insulation fixing platform 3 to complete the ejection release of the satellite.

[0017] The invention discloses a bionic 4D printing multi-factor triggered satellite locking and releasing device, which belongs to the field of bionic 4D printing technology. The device comprises: an anti-electromagnetic radiation heat insulation shell, an upper shape memory bionic locking mechanism, a satellite buffer heat insulation fixing platform, a lower shape memory bionic locking mechanism, a telescopic energy storage ejection mechanism, a rocket connection base, and a satellite, wherein: the satellite buffer heat insulation fixing platform is located in the anti-electromagnetic radiation heat insulation shell and slides; the upper shape memory bionic locking mechanism is an electrostrictive shape memory structure, which is bent and deformed upward or up and down to become a primary locking and releasing mechanism of the satellite, and is integrally formed and printed with the anti-electromagnetic radiation heat insulation shell; locking grooves are evenly distributed on the satellite buffer heat insulation fixing platform, which is a lower shape memory bionic locking mechanism of the satellite, and the satellite is locked or separated from the satellite by a magnetic shape memory T-shaped locking piece evenly distributed at the bottom, which is a secondary locking and releasing mechanism of the satellite; the lower side of the satellite buffer heat insulation fixing platform is evenly distributed with a telescopic energy storage ejection mechanism, which is composed of a shape memory spring and a shape memory electrostrictive sheet, and is connected to the lower end of the anti-electromagnetic radiation heat insulation shell at the bottom. In summary, the device can realize the locking and ejection release of the satellite, and has fast response, small impact and high reliability.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The device of the present invention adopts bionic thinking and special materials of 4D printing to design a new satellite locking and ejection release mechanism. The satellite locking and ejection release are achieved through the deformation of magneto- and electro-shaped memory composite materials, which realizes intelligent response and rapid response and enhances the applicability of the device.

[0020] 2. The device of the present invention has a sophisticated structure and can be designed and manufactured in a miniaturized and lightweight manner compared to traditional locking mechanisms, making it more competitive in micro-satellite applications. It also has a high degree of integration and is easy to operate and control.

[0021] 3. The device of the present invention cleverly utilizes the deformation of shape memory composite materials and springs to store elastic energy. The "spiral-shaped" three-layer structure of the upper part is designed to imitate the up and down swinging of a fish tail, and the multiple groups of shape memory telescopic energy storage mechanisms of the lower part are designed to imitate the movement of octopus claws and wrists. After elastic energy storage, it is released to apply force to the satellite for ejection. The impact force on the satellite during the release process is greatly reduced in the present invention, thereby improving safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of a bionic 4D printing multi-factor triggered satellite locking and releasing device of the present invention;

[0023] Figure 2 It is a schematic diagram of the specific structure of the upper shape memory bionic locking mechanism of a bionic 4D printing multi-factor triggered satellite locking and releasing device of the present invention;

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of a satellite buffer fixing platform and a telescopic energy storage ejection mechanism of a bionic 4D printing multi-factor triggered satellite locking and releasing device of the present invention;

[0025] Figure 4 It is a schematic diagram of the lower shape memory bionic locking mechanism and its use principle of a bionic 4D printing multi-factor triggered satellite locking and releasing device of the present invention;

[0026] Figure 5 It is a specific structural schematic diagram of a telescopic energy storage ejection mechanism of a bionic 4D printing multi-factor triggered satellite locking and releasing device of the present invention. In the attached figure

[0027] 1. Anti-electromagnetic radiation heat-insulating shell; 6 rocket connection base;

[0028] 2. Upper shape memory bionic locking mechanism; 201. Shape memory layer I; 202. Insulation layer; 203. Shape memory layer II;

[0029] 3. Satellite buffer insulation fixed platform; 301. Pulley;

[0030] 4. shape memory bionic locking mechanism; 401. locking groove; 402. shape memory T-shaped locking piece; 402a. upward bending shape of the shape memory bending piece; 402b. downward bending shape of the shape memory bending piece;

[0031] 5. Telescopic energy storage ejection mechanism; 501. Spring; 502. Shape memory telescopic sheet; 502a. Vertical long board; 502b. Vertical short board. DETAILED DESCRIPTION

[0032] Below in conjunction with the present invention Figure 1-5 The present invention is further described in detail with reference to the following specific embodiments. It should be noted that the following embodiments are only some embodiments of the present invention.

[0033] Example 1

[0034] A bionic 4D printing multi-factor triggered satellite locking and releasing device comprises: an anti-electromagnetic radiation heat-insulating shell 1, an upper shape memory bionic locking mechanism 2, a satellite buffer heat-insulating fixing platform 3, a lower shape memory bionic locking mechanism 4, a telescopic energy storage ejection mechanism 5, and a rocket connection base 6, wherein: the satellite buffer heat-insulating fixing platform 3 is located in the anti-electromagnetic radiation heat-insulating shell 1, and the two are slidably connected; the upper shape memory bionic locking mechanism 2 is a lockable and release memory structure, which is integrally printed with the upper port of the anti-electromagnetic radiation heat-insulating shell 1; ... satellite buffer heat-insulating fixing platform 3 is located in the anti-electromagnetic radiation heat-insulating shell 1, and the two are slidably connected; the upper shape memory bionic locking mechanism 2 is a lockable and release memory structure, which is integrally printed with the upper port of the anti-electromagnetic radiation heat-insulating shell 1; the satellite buffer heat-insulating fixing platform 3 is located in the anti-electromagnetic radiation heat-ins The thermal fixing platform 3 is evenly distributed with locking grooves 401 of the lower shape memory bionic locking mechanism 4, and the satellite is locked or separated from the locking grooves 401 by the shape memory T-shaped locking pieces 402 of the lower shape memory bionic locking mechanism 4 evenly distributed at the lower part thereof; the telescopic energy storage ejection mechanism 5 with the same structure is evenly distributed on the circumference of the lower side of the satellite buffering and heat-insulating fixing platform 3, and the telescopic energy storage ejection mechanism (5) is composed of a spring 501 and a shape memory telescopic sheet 502, the upper ends of both are fixedly connected to the lower side of the satellite buffering and heat-insulating fixing platform 3, and the lower ends are fixedly connected to the rocket connection base 6.

[0035] The upper shape memory bionic locking mechanism 2 is composed of three stacked layers: shape memory layer I 201, insulating and heat-insulating layer 202, and shape memory layer II 203. The shape memory layer I 201 and shape memory layer II 203 are made of shape memory polymer materials. Both layers of shape memory materials are provided with heating wires and power supply circuit I. The shape memory layer II 203 can be bent downward by powering on, and can be restored to its initial horizontal state after cooling and heating again. The shape memory layer I 201 can be bent upward by powering on, and can be restored to its initial horizontal state after cooling and heating again. In the actual manufacturing of the insulating and heat-insulating layer 202, a polyimide (PI)-based composite material can be selected.

[0036] The four shape memory T-shaped locking members 402 of the lower shape memory bionic locking mechanism 4 are composed of pillars and shape memory bending sheets. The height of the pillars is consistent with the thickness of the satellite buffer insulation fixing platform 3; the shape memory bending sheet is located at the lower end of the T-shaped locking member 402 and is in a strip shape. Figure 4 In actual manufacturing, a magnetic shape memory polymer material (such as SMPs + magnetic particles, with a magnetic particle content of 20%-40%) is selected and printed horizontally and reciprocatingly; when a magnetic field is applied, the two ends of the strip-shaped shape memory bending sheet will bend upward, and at this time, the distance between the two ends is smaller than the size of the locking groove 401, and the sheet can enter the locking groove 401; after the magnetic field is cut off, the shape memory bending sheet will return to its original straight state; when the magnetic field is applied again, the two ends of the strip-shaped shape memory bending sheet will bend downward, and at this time, the distance between the two ends is still smaller than the size of the locking groove 401, and the sheet can go out of the locking groove 401; after the magnetic field is cut off, the shape memory bending sheet will return to its original straight state; the applied magnetic field is located on the pillar.

[0037] The shape memory expansion piece 502 of the lower shape memory expansion energy storage mechanism 5 is composed of alternately connected vertical short plates 502b and vertical long plates 502a, and both ends are vertical short plates 502b; the shape memory expansion piece 502 is made of shape memory polymer according to the attached Figure 5 The shape memory expansion sheet 502 is printed with an alternating vertical and horizontal printing path; a heating wire and a power supply circuit II are provided on the outside of the shape memory expansion sheet 502. When powered on and heated, the angle between the vertical short plate 502b and the oblique long plate 502a will change from 180° to 135°, and the shape memory expansion sheet 502 will be in a multi-"Z" shape, that is, it will shrink and deform; after power off and cooling, it will return to its initial vertical state; in actual manufacturing, the angle between the vertical short plate 502b and the vertical long plate 502a will be controlled to be a minimum of 135° to avoid breakage or permanent deformation of the shape memory expansion sheet 502.

[0038] The power supply circuit I in the upper shape memory bionic locking mechanism 2 and the power supply circuit II in the telescopic energy storage ejection mechanism 5 are powered synchronously by the same power supply to ensure the synchronization of deformation and energy storage of the device.

[0039] The satellite buffering heat-insulating fixed platform 3 is circular and has four pulleys 301 evenly axially connected thereto. The pulleys 301 are all located in slide rails at corresponding positions on the inner side of the columnar anti-electromagnetic radiation heat-insulating shell 1. The surface of the pulley 301 is provided with an anti-electromagnetic radiation heat-insulating coating; the satellite buffering heat-insulating fixed platform 3 slides linearly on the inner side of the anti-electromagnetic radiation heat-insulating shell 1.

[0040] Example 2

[0041] In this embodiment, after the magnetic field shape memory bending piece enters the locking groove 401, a reverse magnetic field is applied, and the shape memory bending piece returns to its original straight state, further strengthening the locking force between the satellite buffer insulation fixing platform 3 and the satellite.

[0042] The present invention provides a bionic 4D printing multi-factor triggered satellite locking and releasing device, and the specific use method thereof is as follows:

[0043] Step 1: Locking the Satellite

[0044] The shape memory layer II (203) of the upper shape memory bionic locking mechanism (2) is energized to bend downward, and the satellite enters for a primary locking, and after cooling and heating again, it can be restored to the initial horizontal state. A positive magnetic field is applied to the shape memory bending sheet, and its two ends are bent upward (402a); the satellite is aligned with the locking groove (401) through the shape memory T-shaped locking piece (402) at the lower end and inserted, and then the reverse magnetic field is cut off or turned on to complete the secondary locking of the satellite relative to the satellite buffer insulation fixing platform (3);

[0045] Step 2: Stored energy released by satellite ejection

[0046] The power supply circuit I in the shape memory bionic locking mechanism (2) and the power supply circuit II in the telescopic energy storage ejection mechanism (5) are powered synchronously by the same power supply, the electric heating wire is heated, the shape memory telescopic sheet (502) of the telescopic energy storage ejection mechanism (5) shrinks and deforms into a multi-Z shape due to the heat, and at the same time exerts a downward force on the spring (501), thereby storing energy for satellite ejection release;

[0047] Step 3: Unlocking and ejecting the satellite

[0048] The power supply circuit I in the upper shape memory bionic locking mechanism (2) and the power supply circuit II in the telescopic energy storage ejection mechanism (5) are powered, and at the same time, a reverse magnetic field is applied to the shape memory T-shaped locking piece (402) of the shape memory bionic locking mechanism (4), so that the shape memory layer I (201) is energized to bend upwards, providing a channel for the release of the satellite, and performing a first unlocking. After cooling and then heating again, the shape memory T-shaped locking piece (402) is bent downwards to become a shape memory bending piece that is bent downwards (402b), and is separated from the locking groove (401), and performing a second unlocking. The shape memory telescopic piece (502) of the telescopic energy storage ejection mechanism (5) is energized to restore the initial vertical state, releasing the force of the shape memory spring (501), releasing the elastic potential energy, and pushing the satellite upwards. When the satellite reaches a certain position, the satellite is separated from the satellite buffer and heat insulation fixing platform (3), and the ejection release of the satellite is completed.

Claims

1. A bionic 4D printed multi-factor triggered satellite locking and releasing device, comprising: An electromagnetic radiation protection heat insulation shell (1), an upper shape memory bionic locking mechanism (2), a satellite buffer heat insulation fixing platform (3), a lower shape memory bionic locking mechanism (4), a telescopic energy storage ejection mechanism (5), and a rocket connection base (6), wherein: the satellite buffer heat insulation fixing platform (3) is located in the electromagnetic radiation protection heat insulation shell (1), and the two are slidably connected; the upper shape memory bionic locking mechanism (2) is a lockable and releasable memory structure, which is integrally printed with the upper port of the electromagnetic radiation protection heat insulation shell (1); the satellite buffer heat insulation fixing platform (3) is evenly distributed with lower shape memory bionic locking mechanisms (4). The satellite is locked or separated from the locking groove (401) by a shape memory T-shaped locking piece (402) of the lower shape memory bionic locking mechanism (4) uniformly distributed at the lower part thereof; and telescopic energy storage ejection mechanisms (5) uniformly distributed on the circumference of the lower side of the satellite buffer heat insulation fixed platform (3) and having the same structure, the telescopic energy storage ejection mechanisms (5) are composed of a spring (501) and a shape memory telescopic sheet (502), the upper ends of both are fixedly connected to the lower side of the satellite buffer heat insulation fixed platform (3), and the lower ends are fixedly connected to the rocket connection base (6).

2. According to claim 1, a bionic 4D printing multi-factor triggered satellite locking and releasing device is characterized in that: The upper shape memory bionic locking mechanism (2) is a three-layer structure in the shape of a spiral sheet, and is composed of a shape memory layer I (201), an insulating and heat-insulating layer (202), and a shape memory layer II (203). The shape memory layer I (201) and the shape memory layer II (203) are made of shape memory polymer materials. Both layers of shape memory materials are provided with heating wires and a power supply circuit I. When the shape memory layer II (203) is energized, it can bend downward, and after cooling, it can be heated again to restore to an initial horizontal state. When the shape memory layer I (201) is energized, it can bend upward, and after cooling, it can be heated again to restore to an initial horizontal state.

3. A bionic 4D printing multi-factor triggered satellite locking and releasing device according to claim 2, characterized in that: The shape memory T-shaped locking piece (402) of the lower shape memory bionic locking mechanism (4) is composed of a support and a shape memory bending piece. The shape memory T-shaped locking piece (402) has two states, one of which is a shape memory bending piece bending upward (402a) and the other is a shape memory bending piece bending downward (402b). The shape memory bending piece is located at the lower end of the T-shaped locking piece (402) and is strip-shaped and made of magneto-memory material. When positive and negative electric fields are applied, the two ends of the strip-shaped shape memory bending piece will bend downward and upward.

4. A bionic 4D printing multi-factor triggered satellite locking and releasing device according to claim 1, 2 or 3, characterized in that: The shape memory telescopic sheet (502) of the telescopic energy storage ejection mechanism (5) is composed of alternately connected vertical short plates (502b) and vertical long plates (502a), and both ends are vertical short plates (502b); The vertical short plate (502b) is printed along a horizontal path, and the vertical long plate (502a) is printed along a vertical path, and the horizontal and vertical paths are alternately printed to form an integrated telescopic energy storage ejection mechanism (5); An electric heating wire and a power supply circuit II are arranged outside the telescopic energy storage ejection mechanism (502). When powered on for heating, the shape memory telescopic sheet (502) contracts and deforms into a multi-Z shape, compressing the shape memory spring (501); after power is turned off and cooled, the sheet returns to its initial vertical state.

5. The bionic 4D printing multi-factor triggered satellite locking and releasing device according to claim 4, characterized in that: The power supply circuit I in the upper shape memory bionic locking mechanism (2) and the power supply circuit II in the telescopic energy storage ejection mechanism (5) are powered synchronously by the same power supply, thereby ensuring the synchronization of deformation and energy storage of the device.

6. The bionic 4D printing multi-factor triggered satellite locking and releasing device according to claim 5, characterized in that: The satellite buffer heat-insulating fixed platform (3) is a truncated platform on which shaft-connected pulleys (301) are evenly distributed, and the pulleys (301) are all located in the slide rails of the columnar anti-electromagnetic radiation heat-insulating housing (1); and the surface of the pulleys (301) is provided with an anti-electromagnetic radiation heat-insulating coating.

7. A bionic 4D printing multi-factor triggered satellite locking and releasing method, characterized in that: A bionic 4D printed multi-factor triggered satellite locking and releasing device as described in claim 6 is adopted; 1) Satellite locking: The shape memory layer II (203) of the upper shape memory bionic locking mechanism (2) is energized to bend downward, and the satellite enters for a primary locking, and after cooling and reheating, it can be restored to the initial horizontal state. A positive magnetic field is applied to the shape memory bending sheet, and its two ends are bent upward (402a); the satellite is aligned with the locking groove (401) through the shape memory T-shaped locking piece (402) at the lower end and inserted, and then the reverse magnetic field is cut off or turned on to complete the secondary locking of the satellite relative to the satellite buffer insulation fixing platform (3); 2) Energy storage for satellite ejection release: The power supply circuit I in the shape memory bionic locking mechanism (2) and the power supply circuit II in the telescopic energy storage ejection mechanism (5) are powered synchronously by the same power supply, and the electric heating wire is heated. The shape memory telescopic sheet (502) of the telescopic energy storage ejection mechanism (5) shrinks and deforms into a multi-Z shape due to the heat, and at the same time exerts a downward force on the spring (501), thereby storing energy for satellite ejection release; 3) Unlocking and ejection release of the satellite: the power supply circuit I in the upper shape memory bionic locking mechanism (2) and the power supply circuit II in the telescopic energy storage ejection mechanism (5) are powered, and at the same time, a reverse magnetic field is applied to the shape memory T-shaped locking member (402) of the shape memory bionic locking mechanism (4), so that the shape memory layer I (201) is energized to bend upward, providing a channel for the release of the satellite, and performing a first unlocking. After cooling and then heating again, it can be restored to an initial horizontal state; the shape memory T-shaped locking member (402) is bent downward to become a downwardly bent shape (402b) of the shape memory bending piece, and is separated from the locking groove (401), and a second unlocking is performed; the shape memory telescopic piece (502) of the telescopic energy storage ejection mechanism (5) is energized to restore the initial vertical state, releasing the force of the shape memory spring (501), releasing the elastic potential energy, and pushing the satellite upward. When reaching a certain position, the satellite is separated from the satellite buffer and heat insulation fixing platform (3), and the ejection release of the satellite is completed.

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