A payload release device and release method for planetary applications

Abstract

The present invention relates to a planetary application load release device and a release method. The planetary application load release device includes a separation seat, a plurality of locking straps and a load release bag for placing a payload. A plurality of first locking mechanisms are provided on the peripheral side wall of the separation seat, and a release spring is provided on the release bag mounting surface of the separation seat; the two ends of the locking strap are respectively connected to the first locking mechanism through a transfer rod, and each transfer rod is connected to a first locking mechanism; the load release bag includes a reel and two side panels, the head and tail of the reel are connected to form a cylindrical structure through a second locking mechanism, and the two side panels are respectively installed at the open end of the cylindrical structure through a first torsion spring, and a plurality of locking straps tighten the reel and the side panels on the release bag mounting surface of the separation seat. The load release process of the present invention is relatively simplified. After the separation seat is unlocked, the load release bag is thrown away from the lander and directly falls on the surface of the planet. After the load release bag itself is unlocked for the second time, the payload can be exposed to the surface of the planet.

Description

Technical Field

[0001] The present invention relates to the technical field related to space payload release, and in particular to a planetary application payload release device and a release method. Background Art

[0002] The release device is a device that releases the payload that lands with the lander to the surface of the planet. It plays an important role in the payload that is applied and implemented on the planet. The release technology represented by the release device is a prerequisite for the implementation of the payload mission. The simple device, simplified process and small weight resource occupation are of great significance to the implementation of the payload mission.

[0003] Taking the release of the lunar payload after landing as an example, during the Earth-Moon transfer phase, the lunar orbit phase and the landing phase, the lunar payload and the release device should be reliably fixed on the side wall of the lander and be able to withstand the force, heat and other environmental conditions during the flight process; after the lander safely lands on the lunar surface, the lunar payload is transferred from the lander to the lunar surface through the release device. Due to the diversity of payloads and the limited space, weight, power supply and thermal control resources that the lander can provide, the release device is required to reliably fix the lunar payload during the flight phase, separate the payload from the lander and release it to the lunar surface after landing, and meet the design requirements of occupying less resources and being able to adapt to payloads of different shapes and sizes.

[0004] The payload requirements for other planetary applications are basically the same as those for lunar payloads, so a release solution that serves the payload mission needs to be provided. Summary of the invention

[0005] In order to solve one or more technical problems existing in the prior art, the present invention provides a planetary application load release device and a release method.

[0006] The technical solution of the present invention to solve the above technical problems is as follows: a planetary application load release device, comprising a separation seat, a plurality of locking straps and a load release bag for placing a payload, a plurality of first locking mechanisms are arranged on the peripheral side wall of the separation seat, and a release spring is arranged on the release bag mounting surface of the separation seat; both ends of the locking strap are respectively connected to the first locking mechanism through a transfer rod, and each of the transfer rods is connected to a first locking mechanism;

[0007] The load release bag includes a reel and two side panels. The head and tail of the reel are connected by a second locking mechanism to form a cylindrical structure. The two side panels are respectively installed on the two open ends of the cylindrical structure through a first torsion spring. A plurality of locking straps tighten the reel and the side panels and bind them to the release bag mounting surface of the separation seat.

[0008] The beneficial effects of the present invention are: the planetary application payload release device of the present invention has a relatively simplified process. After the separation seat is unlocked, the payload release package is thrown away from the lander and directly falls on the planetary surface. After the payload release package itself is unlocked for the second time, the payload can be exposed to the planetary surface, so the interface between the payload and the lander is simple.

[0009] Based on the above technical solution, the present invention can also be improved as follows.

[0010] Further, the second locking mechanism includes a first base and a second base, the first base is mounted on the inner side surface of one end of the reel, and the second base is mounted on the inner side surface of the other end of the reel; the first base is provided with a card slot, and the second base is provided with a locking tongue, a push rod and a damping assembly, the middle part of the locking tongue is rotatably mounted on the second base through the damping assembly, one end of the push rod abuts against one end of the locking tongue, and the other end of the push rod passes through the side wall of one end of the reel and abuts against the separation seat, at this time, the other end of the locking tongue is stuck in the card slot, and the damping assembly is in a stressed state.

[0011] The beneficial effect of adopting the above further solution is that by providing the first base and the second base, when the load release bag is installed on the separation seat, the locking tongue is pressed into the slot of the first base by the separation seat, and the second locking mechanism realizes locking.

[0012] Furthermore, the other end surface of the reel abuts against the inner side surface of one end of the reel; the push rod is arranged vertically to the separation seat, the opening direction of the slot is the same as the extension direction of the push rod, and the push rod is located below the first base.

[0013] Furthermore, the damping assembly includes a damper and a second torsion spring, a connecting shaft is provided at one end of the locking tongue, the connecting shaft is arranged vertically to the push rod, one end of the connecting shaft is connected to the second base through the second torsion spring, and the other end of the connecting shaft is connected to the second base through the damper.

[0014] Furthermore, the lock tongue is a 7-shaped structure.

[0015] Further, the reel includes a first mounting plate, a second mounting plate and an L-shaped rolling plate, the first mounting plate is in contact with the release package mounting surface of the separation seat, one end of the L-shaped rolling plate is connected to one end of the first mounting plate through a third torsion spring, the other end of the L-shaped rolling plate is connected to one end of the second mounting plate through a third torsion spring, and the other end of the second mounting plate is connected to the other end of the first mounting plate through a second locking mechanism; the two side panels are respectively connected to the inner side surfaces of the two side edges of the L-shaped rolling plate through the first torsion spring, and the two side panels are arranged close to the second mounting plate.

[0016] Furthermore, the first locking mechanism is an unlocking device for explosives; and the outer surfaces of the drum and the two side panels are both covered with a thermal control multi-layer coating.

[0017] Furthermore, a first buffer structure layer is provided on the inner side surface of the roller, and a second buffer structure layer is provided on the inner side surface of the side panel. An annular plug-in edge is reserved between the peripheral edge of the second buffer structure layer and the peripheral edge of the side panel. When the side panel is buckled on the two open ends of the tubular structure, the first buffer structure layer is plugged into the annular plug-in edge, and the peripheral edge of the second buffer structure layer abuts against the inner surface of the first buffer structure layer.

[0018] The beneficial effect of adopting the above further solution is that the buffer structure layer in the load release bag is designed to match the effective load and can be adapted to the use of various types or shapes of effective loads.

[0019] Furthermore, the separation seat is a rectangular structure, and two first locking mechanisms are provided on each side of the rectangular structure. There are four locking straps, and the transfer rods at both ends of each locking strap are respectively connected to the two first locking mechanisms arranged oppositely.

[0020] A planetary application load release method is implemented by using the planetary application load release device, comprising:

[0021] In the initial state, the payload is wrapped in the payload release bag, the payload release bag is locked and bound on the release bag mounting surface of the separation seat by a plurality of locking straps, and the separation seat is fixedly mounted on the side wall of the lander;

[0022] When the release begins, the first locking mechanism is unlocked, the transfer rod on the locking bag belt is disconnected from the first locking mechanism, the installation constraint of the load release bag is released, and the load release bag is thrown away and falls to the surface of the planet under the action of the release spring; the second locking mechanism is unlocked, the reel of the load release bag is unfolded, and the side panel is unfolded under the action of the first torsion spring, so that the payload is exposed to the surface of the planet.

[0023] The beneficial effects of the present invention are as follows: the planetary application load release method of the present invention simplifies the release process and makes the release process reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of the planetary application load release device and the lander in cooperation with each other in the present invention;

[0025] Figure 2 It is a structural schematic diagram of the planetary application load release device of the present invention being bound to the separation seat by a locking strap;

[0026] Figure 3 It is a schematic diagram of the structure of the separation seat of the present invention;

[0027] Figure 4 It is a schematic diagram of the main structure of the payload release package of the present invention in an expanded state;

[0028] Figure 5 It is a side view structural schematic diagram of the load release package of the present invention in the unfolded state;

[0029] Figure 6 It is a schematic diagram of the structure of the planetary application load release device of the present invention when it is not released on the lander;

[0030] Figure 7 It is a schematic diagram of the structure of the planetary application load release device of the present invention being released on the lander;

[0031] Figure 8 It is a schematic diagram of the structure of the release trajectory of the planetary application load release device on the lander of the present invention;

[0032] Fig. 9 It is a schematic structural diagram of the deployment of the payload release package after the planetary application payload release device of the present invention is released on the lander;

[0033] Fig.10 It is a structural schematic diagram of the locking strap of the present invention being connected to the first locking mechanism via a transfer rod;

[0034] Fig.11 The cross-sectional structure diagram of the second locking mechanism of the present invention is shown in FIG. Figure 1 ;

[0035] Fig.12 The cross-sectional structure diagram of the second locking mechanism of the present invention is shown in FIG. Figure 2 .

[0036] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0037] 1. Separation seat; 11. Release spring;

[0038] 2. Locking strap; 21. Transfer rod; 22. Belt ring;

[0039] 3. Payload; 4. First locking mechanism;

[0040] 5. Load release bag; 50. First mounting plate; 51. L-shaped roll plate; 52. Side panel; 53. First torsion spring; 54. First buffer structure layer; 55. Second buffer structure layer; 56. Annular plug edge; 57. Release track; 58. Third torsion spring; 59. Second mounting plate;

[0041] 6. Second locking mechanism; 61. First base; 62. Second base; 63. Slot; 64. Lock tongue; 65. Push rod; 66. Damper; 67. Connecting shaft; 68. Second torsion spring;

[0042] 7. Lander; 8. Thermal control multi-layer coating. DETAILED DESCRIPTION

[0043] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0044] like Figures 1 to 9 As shown, a planetary application load release device of the present embodiment comprises a separation seat 1, a plurality of locking straps 2 and a load release bag 5 for placing a payload 3, a plurality of first locking mechanisms 4 are arranged on the peripheral side wall of the separation seat 1, and a release spring 11 is arranged on the release bag mounting surface of the separation seat 1; the two ends of the locking strap 2 are respectively connected to the first locking mechanism 4 through a transfer rod 21, and each of the transfer rods 21 is connected to a first locking mechanism 4; the load release bag 5 comprises a reel and two side panels 52, the head and tail of the reel are connected to form a cylindrical structure through a second locking mechanism 6, and the two side panels 52 are respectively mounted on the two open ends of the cylindrical structure through a first torsion spring 53, and the plurality of locking straps 2 tighten the reel and the side panels 52 and bind them to the release bag mounting surface of the separation seat 1, and the pressing force of the load release bag 5 on the separation seat 1 is provided by the plurality of locking straps 2, and the locking straps 2 can be made of elastic material or non-elastic material.

[0045] like Fig.11 and Fig.12 As shown, the second locking mechanism 6 of this embodiment includes a first base 61 and a second base 62, the first base 61 is installed on the inner side surface of one end of the reel, and the second base 62 is installed on the inner side surface of the other end of the reel; the first base 61 is provided with a slot 63, and the second base 62 is provided with a lock tongue 64, a push rod 65 and a damping assembly, the middle part of the lock tongue 64 is rotatably mounted on the second base 62 through the damping assembly, one end of the push rod 65 abuts against one end of the lock tongue 64, and the other end of the push rod 65 passes through the side wall of one end of the reel and abuts against the separation seat 1, at this time, the other end of the lock tongue 64 is stuck in the slot 63, so that the lock tongue 64 is stuck in the slot 63, and the damping assembly is in a stressed state, as shown in FIG. Fig.12 shown. Fig.12 In the embodiment, the left end of the second base 62 on the right side can be fixedly connected to the right side surface of the first mounting plate 50, and the upper end surface of the first base 61 on the left side can be fixedly connected to the upper side surface of the second mounting plate 59. By providing the first base and the second base, when the load release bag is installed on the separation seat, the locking tongue is pressed into the card slot of the first base by the separation seat, and the second locking mechanism realizes locking.

[0046] like Fig.12As shown, an optional solution of this embodiment is that the push rod 65 is elastically mounted on the second base 62 through a return spring. Fig.12 Not shown in the figure, it can be set in the annular cavity on the outer peripheral side of the push rod 65.

[0047] like Figure 2 and Figure 4 As shown, the other end face of the reel in this embodiment abuts against the inner side face of one end of the reel; the push rod 65 is arranged vertically to the separation seat 1, the opening direction of the slot 63 is the same as the extension direction of the push rod 65, and the push rod 65 is located below the first base 61.

[0048] like Fig.11 As shown, a specific scheme of this embodiment is that the damping assembly includes a damper 66 and a second torsion spring 68, one end of the locking tongue 64 is provided with a connecting shaft 67, the connecting shaft 67 is arranged vertically with the push rod 65, one end of the connecting shaft 67 is connected to the second base 62 through the second torsion spring 68, and the other end of the connecting shaft 67 is connected to the second base 62 through the damper 66.

[0049] like Fig.12 As shown, the locking tongue 64 of this embodiment is a 7-shaped structure.

[0050] like Figure 4 As shown, a specific scheme of this embodiment is that the reel includes a first mounting plate 50, a second mounting plate 59 and an L-shaped roll plate 51, the first mounting plate 50 is in contact with the release package mounting surface of the separation seat 1, one end of the L-shaped roll plate 51 is connected to one end of the first mounting plate 50 through a third torsion spring 58, the other end of the L-shaped roll plate 51 is connected to one end of the second mounting plate 59 through a third torsion spring 58, and the other end of the second mounting plate 59 is connected to the other end of the first mounting plate 50 through a second locking mechanism 6; the two side panels 52 are respectively connected to the inner side surfaces of the two side edges of the L-shaped roll plate 51 through a first torsion spring 53, and the two side panels 52 are arranged close to the second mounting plate 59. The first mounting plate 50 and the second mounting plate 59 can be arranged vertically, and the corners of the L-shaped roll plate 51 can adopt an arc structure. The load release package body is made of flexible material, and a buffer structure is fixedly installed on each surface of the reel. The contact surface between the buffer structure and the payload can be shaped and designed according to the characteristics of the payload. Specifically, with Figure 2Taking the above-below-below-below-below-below-below as an example, the second mounting plate 59 is actually located above the entire load release package, the L-shaped roll plate 51 is located below and to the right of the load release package, and the first mounting plate 50 is located on the left side of the entire load release package. The first base 61 can be mounted on the second mounting plate 59, and the second base 62 can be mounted on the first mounting plate 50. The second base 62 can adopt an L-shaped structure, such as Fig.12 shown.

[0051] like Fig.10 As shown, the first locking mechanism 4 of this embodiment is a pyrotechnic unlocking device, which can be purchased commercially; the outer surfaces of the drum and the two side panels are affixed with a thermal control multilayer coating 5. During flight transportation, the thermal control multilayer coating on the outer surface of the payload release package controls the temperature impact of the space thermal environment on the payload, and reduces the temperature variation range of the payload in the package. The thermal control multilayer coating can be made of heat-insulating material. The thermal control multilayer coating provides support for thermal protection of the payload during the flight phase, and the payload release package is separated from the payload after release. The thermal control multilayer coating does not affect the thermal control measures of the payload during its operation on the surface of the planet.

[0052] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the inner side surface of the reel of this embodiment is provided with a first buffer structure layer 54, the inner side surface of the side panel 52 is provided with a second buffer structure layer 55, and an annular plug edge 56 is reserved between the peripheral edge of the second buffer structure layer 55 and the peripheral edge of the side panel 52. When the side panel 52 is buckled on the two open ends of the cylindrical structure, the first buffer structure layer 54 is plugged into the annular plug edge 56, and the peripheral edge of the second buffer structure layer 55 abuts against the inner surface of the first buffer structure layer 54. The side panel is wrapped by the first buffer structure layer 54. The buffer structure layer in the load release package is designed to match the payload, and can be used with payloads of various types or shapes.

[0053] like Figure 3 As shown, the separation seat 1 of this embodiment is a rectangular structure, and two first locking mechanisms 4 are provided on each side of the rectangular structure. There are four locking straps 2, and the transfer rods 21 at both ends of each locking strap 2 are respectively connected to two oppositely arranged first locking mechanisms 4. Specifically, belt rings 22 are respectively provided at both ends of the locking strap 2, and the transfer rods 21 are connected to the belt rings 22.

[0054] In this embodiment, the separation seat 1 is fixedly connected to the outer wall of the lander 7. The separation seat 1 is a rigid platform, which is fixedly installed on the lander. A plurality of first locking mechanisms and release springs are installed on the separation seat. The locking strap binds the load release bag tightly, and the locking strap is fixedly locked with the first locking mechanism through a transfer rod. The first locking mechanism can be selected as a pyrotechnic cutter. The release spring is initially compressed by the load release bag, and the elastic force of the release spring acts on the load release bag. When released, the pyrotechnic cutter works to cut off the transfer rod at the end of the strap, and the load release bag is thrown away under the action of the elastic force of the release spring. The throwing angle and initial velocity can be controlled by adjusting the spring stiffness and the installation position in advance, such as Figure 8 shown.

[0055] The planetary application payload release device of this embodiment has a relatively simplified process. After the separation seat is unlocked, the payload release package is thrown away from the lander and falls directly on the planet's surface. After the payload release package itself is unlocked a second time, the payload can be exposed to the planet's surface. Therefore, the interface between the payload and the lander is simple.

[0056] This embodiment also provides a planetary application load release method, which is implemented by using the planetary application load release device mentioned above, and includes:

[0057] In the initial state, the payload 3 is wrapped in the payload release bag 5, and the payload release bag 5 is locked and bound on the release bag mounting surface of the separation seat 1 by a plurality of locking straps 2, and the separation seat 1 is fixedly mounted on the side wall of the lander 7;

[0058] When the release starts, the first locking mechanism 4 is unlocked, the transfer rod 21 on the locking bag belt 2 is disconnected from the first locking mechanism 4, the installation constraint of the load release bag 5 is released, and the load release bag 5 is thrown away and falls to the surface of the planet under the action of the release spring 11. The release trajectory 57 is as shown in FIG. Figure 8 As shown; at this time, since the load release bag 5 is in contact and locked with the separation seat 1, the separation seat 1 no longer generates pressure on the push rod, and the lock tongue is no longer squeezed by the push rod. Under the action of the damping component, the lock tongue is disengaged from the slot, the second locking mechanism 6 is unlocked, the reel of the load release bag 5 is unfolded, and the side panel 52 is unfolded under the action of the first torsion spring 53, so that the payload 3 is exposed on the surface of the planet.

[0059] The planetary application payload release method of this embodiment has a simplified release process and a reliable release process.

[0060] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0061] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0062] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0064] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0065] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A planetary application load release device, characterized in that: It comprises a separation seat, a plurality of locking straps and a load release bag for placing a payload, a plurality of first locking mechanisms are arranged on the peripheral side wall of the separation seat, and a release spring is arranged on the release bag mounting surface of the separation seat; the two ends of the locking strap are respectively connected to the first locking mechanism through a transfer rod, and each of the transfer rods is connected to a first locking mechanism; The load release bag comprises a drum and two side panels, the drum is connected head to tail through a second locking mechanism to form a cylindrical structure, the two side panels are respectively installed at two open ends of the cylindrical structure through a first torsion spring, and a plurality of locking straps are used to tighten the drum and the side panels and then bound to the release bag installation surface of the separation seat; The second locking mechanism includes a first base and a second base, the first base is mounted on the inner side surface of one end of the reel, and the second base is mounted on the inner side surface of the other end of the reel; the first base is provided with a slot, and the second base is provided with a lock tongue, a push rod and a damping assembly, the middle part of the lock tongue is rotatably mounted on the second base through the damping assembly, one end of the push rod abuts against one end of the lock tongue, and the other end of the push rod passes through the side wall of one end of the reel and abuts against the separation seat, at this time, the other end of the lock tongue is stuck in the slot, and the damping assembly is in a stressed state.

2. A planetary application load release device according to claim 1, characterized in that: The other end surface of the reel abuts against the inner side surface of one end of the reel; the push rod is arranged vertically to the separation seat, the opening direction of the slot is the same as the extension direction of the push rod, and the push rod is located below the first base.

3. A planetary application load release device according to claim 1, characterized in that: The damping assembly includes a damper and a second torsion spring. A connecting shaft is provided at one end of the locking tongue. The connecting shaft is arranged vertically to the push rod. One end of the connecting shaft is connected to the second base through the second torsion spring, and the other end of the connecting shaft is connected to the second base through the damper.

4. A planetary application load release device according to claim 1, characterized in that: The locking tongue is a 7-shaped structure.

5. A planetary application load release device according to claim 1, characterized in that: The reel includes a first mounting plate, a second mounting plate and an L-shaped rolling plate, the first mounting plate is in contact with the release package mounting surface of the separation seat, one end of the L-shaped rolling plate is connected to one end of the first mounting plate through a third torsion spring, the other end of the L-shaped rolling plate is connected to one end of the second mounting plate through a third torsion spring, and the other end of the second mounting plate is connected to the other end of the first mounting plate through a second locking mechanism; the two side panels are respectively connected to the inner side surfaces of the two side edges of the L-shaped rolling plate through the first torsion spring, and the two side panels are arranged close to the second mounting plate.

6. A planetary application load release device according to claim 1, characterized in that: The first locking mechanism is an unlocking device for explosives; the outer surfaces of the reel and the two side panels are both covered with a thermal control multi-layer coating.

7. A planetary application load release device according to claim 1, characterized in that: The inner side surface of the roller is provided with a first buffer structure layer, and the inner side surface of the side panel is provided with a second buffer structure layer. An annular plug-in edge is reserved between the peripheral edge of the second buffer structure layer and the peripheral edge of the side panel. When the side panel is buckled on the two open ends of the tubular structure, the first buffer structure layer is plugged into the annular plug-in edge, and the peripheral edge of the second buffer structure layer abuts against the inner surface of the first buffer structure layer.

8. A planetary application load release device according to claim 1, characterized in that: The separation seat is a rectangular structure, and two first locking mechanisms are provided on each side of the rectangular structure. There are four locking straps, and the transfer rods at both ends of each locking strap are respectively connected to two first locking mechanisms arranged oppositely.

9. A method for releasing a planetary application load, characterized in that: The planetary application load release device according to any one of claims 1 to 8 is implemented, comprising: In the initial state, the payload is wrapped in the payload release bag, the payload release bag is locked and bound on the release bag mounting surface of the separation seat by a plurality of locking straps, and the separation seat is fixedly mounted on the side wall of the lander; When the release begins, the first locking mechanism is unlocked, the transfer rod on the locking bag belt is disconnected from the first locking mechanism, the installation constraint of the load release bag is released, and the load release bag is thrown away and falls to the surface of the planet under the action of the release spring; the second locking mechanism is unlocked, the reel of the load release bag is unfolded, and the side panel is unfolded under the action of the first torsion spring, so that the payload is exposed to the surface of the planet.

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